linux/drivers/scsi/lpfc/lpfc_init.c
<<
>>
Prefs
   1/*******************************************************************
   2 * This file is part of the Emulex Linux Device Driver for         *
   3 * Fibre Channel Host Bus Adapters.                                *
   4 * Copyright (C) 2017-2019 Broadcom. All Rights Reserved. The term *
   5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.  *
   6 * Copyright (C) 2004-2016 Emulex.  All rights reserved.           *
   7 * EMULEX and SLI are trademarks of Emulex.                        *
   8 * www.broadcom.com                                                *
   9 * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
  10 *                                                                 *
  11 * This program is free software; you can redistribute it and/or   *
  12 * modify it under the terms of version 2 of the GNU General       *
  13 * Public License as published by the Free Software Foundation.    *
  14 * This program is distributed in the hope that it will be useful. *
  15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  19 * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  20 * more details, a copy of which can be found in the file COPYING  *
  21 * included with this package.                                     *
  22 *******************************************************************/
  23
  24#include <linux/blkdev.h>
  25#include <linux/delay.h>
  26#include <linux/dma-mapping.h>
  27#include <linux/idr.h>
  28#include <linux/interrupt.h>
  29#include <linux/module.h>
  30#include <linux/kthread.h>
  31#include <linux/pci.h>
  32#include <linux/spinlock.h>
  33#include <linux/ctype.h>
  34#include <linux/aer.h>
  35#include <linux/slab.h>
  36#include <linux/firmware.h>
  37#include <linux/miscdevice.h>
  38#include <linux/percpu.h>
  39#include <linux/msi.h>
  40#include <linux/irq.h>
  41#include <linux/bitops.h>
  42#include <linux/crash_dump.h>
  43
  44#include <scsi/scsi.h>
  45#include <scsi/scsi_device.h>
  46#include <scsi/scsi_host.h>
  47#include <scsi/scsi_transport_fc.h>
  48#include <scsi/scsi_tcq.h>
  49#include <scsi/fc/fc_fs.h>
  50
  51#include <linux/nvme-fc-driver.h>
  52
  53#include "lpfc_hw4.h"
  54#include "lpfc_hw.h"
  55#include "lpfc_sli.h"
  56#include "lpfc_sli4.h"
  57#include "lpfc_nl.h"
  58#include "lpfc_disc.h"
  59#include "lpfc.h"
  60#include "lpfc_scsi.h"
  61#include "lpfc_nvme.h"
  62#include "lpfc_nvmet.h"
  63#include "lpfc_logmsg.h"
  64#include "lpfc_crtn.h"
  65#include "lpfc_vport.h"
  66#include "lpfc_version.h"
  67#include "lpfc_ids.h"
  68
  69/* Used when mapping IRQ vectors in a driver centric manner */
  70static uint32_t lpfc_present_cpu;
  71
  72static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  73static int lpfc_post_rcv_buf(struct lpfc_hba *);
  74static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  75static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  76static int lpfc_setup_endian_order(struct lpfc_hba *);
  77static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  78static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  79static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
  80static void lpfc_init_sgl_list(struct lpfc_hba *);
  81static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  82static void lpfc_free_active_sgl(struct lpfc_hba *);
  83static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  84static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  85static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  86static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  87static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  88static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  89static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  90static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  91static uint16_t lpfc_find_cpu_handle(struct lpfc_hba *, uint16_t, int);
  92static void lpfc_setup_bg(struct lpfc_hba *, struct Scsi_Host *);
  93
  94static struct scsi_transport_template *lpfc_transport_template = NULL;
  95static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  96static DEFINE_IDR(lpfc_hba_index);
  97#define LPFC_NVMET_BUF_POST 254
  98
  99/**
 100 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
 101 * @phba: pointer to lpfc hba data structure.
 102 *
 103 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
 104 * mailbox command. It retrieves the revision information from the HBA and
 105 * collects the Vital Product Data (VPD) about the HBA for preparing the
 106 * configuration of the HBA.
 107 *
 108 * Return codes:
 109 *   0 - success.
 110 *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 111 *   Any other value - indicates an error.
 112 **/
 113int
 114lpfc_config_port_prep(struct lpfc_hba *phba)
 115{
 116        lpfc_vpd_t *vp = &phba->vpd;
 117        int i = 0, rc;
 118        LPFC_MBOXQ_t *pmb;
 119        MAILBOX_t *mb;
 120        char *lpfc_vpd_data = NULL;
 121        uint16_t offset = 0;
 122        static char licensed[56] =
 123                    "key unlock for use with gnu public licensed code only\0";
 124        static int init_key = 1;
 125
 126        pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 127        if (!pmb) {
 128                phba->link_state = LPFC_HBA_ERROR;
 129                return -ENOMEM;
 130        }
 131
 132        mb = &pmb->u.mb;
 133        phba->link_state = LPFC_INIT_MBX_CMDS;
 134
 135        if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 136                if (init_key) {
 137                        uint32_t *ptext = (uint32_t *) licensed;
 138
 139                        for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 140                                *ptext = cpu_to_be32(*ptext);
 141                        init_key = 0;
 142                }
 143
 144                lpfc_read_nv(phba, pmb);
 145                memset((char*)mb->un.varRDnvp.rsvd3, 0,
 146                        sizeof (mb->un.varRDnvp.rsvd3));
 147                memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 148                         sizeof (licensed));
 149
 150                rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 151
 152                if (rc != MBX_SUCCESS) {
 153                        lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 154                                        "0324 Config Port initialization "
 155                                        "error, mbxCmd x%x READ_NVPARM, "
 156                                        "mbxStatus x%x\n",
 157                                        mb->mbxCommand, mb->mbxStatus);
 158                        mempool_free(pmb, phba->mbox_mem_pool);
 159                        return -ERESTART;
 160                }
 161                memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 162                       sizeof(phba->wwnn));
 163                memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 164                       sizeof(phba->wwpn));
 165        }
 166
 167        /*
 168         * Clear all option bits except LPFC_SLI3_BG_ENABLED,
 169         * which was already set in lpfc_get_cfgparam()
 170         */
 171        phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED;
 172
 173        /* Setup and issue mailbox READ REV command */
 174        lpfc_read_rev(phba, pmb);
 175        rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 176        if (rc != MBX_SUCCESS) {
 177                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 178                                "0439 Adapter failed to init, mbxCmd x%x "
 179                                "READ_REV, mbxStatus x%x\n",
 180                                mb->mbxCommand, mb->mbxStatus);
 181                mempool_free( pmb, phba->mbox_mem_pool);
 182                return -ERESTART;
 183        }
 184
 185
 186        /*
 187         * The value of rr must be 1 since the driver set the cv field to 1.
 188         * This setting requires the FW to set all revision fields.
 189         */
 190        if (mb->un.varRdRev.rr == 0) {
 191                vp->rev.rBit = 0;
 192                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 193                                "0440 Adapter failed to init, READ_REV has "
 194                                "missing revision information.\n");
 195                mempool_free(pmb, phba->mbox_mem_pool);
 196                return -ERESTART;
 197        }
 198
 199        if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 200                mempool_free(pmb, phba->mbox_mem_pool);
 201                return -EINVAL;
 202        }
 203
 204        /* Save information as VPD data */
 205        vp->rev.rBit = 1;
 206        memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 207        vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 208        memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 209        vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 210        memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 211        vp->rev.biuRev = mb->un.varRdRev.biuRev;
 212        vp->rev.smRev = mb->un.varRdRev.smRev;
 213        vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 214        vp->rev.endecRev = mb->un.varRdRev.endecRev;
 215        vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 216        vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 217        vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 218        vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 219        vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 220        vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 221
 222        /* If the sli feature level is less then 9, we must
 223         * tear down all RPIs and VPIs on link down if NPIV
 224         * is enabled.
 225         */
 226        if (vp->rev.feaLevelHigh < 9)
 227                phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 228
 229        if (lpfc_is_LC_HBA(phba->pcidev->device))
 230                memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 231                                                sizeof (phba->RandomData));
 232
 233        /* Get adapter VPD information */
 234        lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 235        if (!lpfc_vpd_data)
 236                goto out_free_mbox;
 237        do {
 238                lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 239                rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 240
 241                if (rc != MBX_SUCCESS) {
 242                        lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 243                                        "0441 VPD not present on adapter, "
 244                                        "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 245                                        mb->mbxCommand, mb->mbxStatus);
 246                        mb->un.varDmp.word_cnt = 0;
 247                }
 248                /* dump mem may return a zero when finished or we got a
 249                 * mailbox error, either way we are done.
 250                 */
 251                if (mb->un.varDmp.word_cnt == 0)
 252                        break;
 253                if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 254                        mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 255                lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 256                                      lpfc_vpd_data + offset,
 257                                      mb->un.varDmp.word_cnt);
 258                offset += mb->un.varDmp.word_cnt;
 259        } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 260        lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 261
 262        kfree(lpfc_vpd_data);
 263out_free_mbox:
 264        mempool_free(pmb, phba->mbox_mem_pool);
 265        return 0;
 266}
 267
 268/**
 269 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 270 * @phba: pointer to lpfc hba data structure.
 271 * @pmboxq: pointer to the driver internal queue element for mailbox command.
 272 *
 273 * This is the completion handler for driver's configuring asynchronous event
 274 * mailbox command to the device. If the mailbox command returns successfully,
 275 * it will set internal async event support flag to 1; otherwise, it will
 276 * set internal async event support flag to 0.
 277 **/
 278static void
 279lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 280{
 281        if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 282                phba->temp_sensor_support = 1;
 283        else
 284                phba->temp_sensor_support = 0;
 285        mempool_free(pmboxq, phba->mbox_mem_pool);
 286        return;
 287}
 288
 289/**
 290 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 291 * @phba: pointer to lpfc hba data structure.
 292 * @pmboxq: pointer to the driver internal queue element for mailbox command.
 293 *
 294 * This is the completion handler for dump mailbox command for getting
 295 * wake up parameters. When this command complete, the response contain
 296 * Option rom version of the HBA. This function translate the version number
 297 * into a human readable string and store it in OptionROMVersion.
 298 **/
 299static void
 300lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 301{
 302        struct prog_id *prg;
 303        uint32_t prog_id_word;
 304        char dist = ' ';
 305        /* character array used for decoding dist type. */
 306        char dist_char[] = "nabx";
 307
 308        if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 309                mempool_free(pmboxq, phba->mbox_mem_pool);
 310                return;
 311        }
 312
 313        prg = (struct prog_id *) &prog_id_word;
 314
 315        /* word 7 contain option rom version */
 316        prog_id_word = pmboxq->u.mb.un.varWords[7];
 317
 318        /* Decode the Option rom version word to a readable string */
 319        if (prg->dist < 4)
 320                dist = dist_char[prg->dist];
 321
 322        if ((prg->dist == 3) && (prg->num == 0))
 323                snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 324                        prg->ver, prg->rev, prg->lev);
 325        else
 326                snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 327                        prg->ver, prg->rev, prg->lev,
 328                        dist, prg->num);
 329        mempool_free(pmboxq, phba->mbox_mem_pool);
 330        return;
 331}
 332
 333/**
 334 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 335 *      cfg_soft_wwnn, cfg_soft_wwpn
 336 * @vport: pointer to lpfc vport data structure.
 337 *
 338 *
 339 * Return codes
 340 *   None.
 341 **/
 342void
 343lpfc_update_vport_wwn(struct lpfc_vport *vport)
 344{
 345        uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
 346        u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
 347
 348        /* If the soft name exists then update it using the service params */
 349        if (vport->phba->cfg_soft_wwnn)
 350                u64_to_wwn(vport->phba->cfg_soft_wwnn,
 351                           vport->fc_sparam.nodeName.u.wwn);
 352        if (vport->phba->cfg_soft_wwpn)
 353                u64_to_wwn(vport->phba->cfg_soft_wwpn,
 354                           vport->fc_sparam.portName.u.wwn);
 355
 356        /*
 357         * If the name is empty or there exists a soft name
 358         * then copy the service params name, otherwise use the fc name
 359         */
 360        if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 361                memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 362                        sizeof(struct lpfc_name));
 363        else
 364                memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 365                        sizeof(struct lpfc_name));
 366
 367        /*
 368         * If the port name has changed, then set the Param changes flag
 369         * to unreg the login
 370         */
 371        if (vport->fc_portname.u.wwn[0] != 0 &&
 372                memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
 373                        sizeof(struct lpfc_name)))
 374                vport->vport_flag |= FAWWPN_PARAM_CHG;
 375
 376        if (vport->fc_portname.u.wwn[0] == 0 ||
 377            vport->phba->cfg_soft_wwpn ||
 378            (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
 379            vport->vport_flag & FAWWPN_SET) {
 380                memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 381                        sizeof(struct lpfc_name));
 382                vport->vport_flag &= ~FAWWPN_SET;
 383                if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
 384                        vport->vport_flag |= FAWWPN_SET;
 385        }
 386        else
 387                memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 388                        sizeof(struct lpfc_name));
 389}
 390
 391/**
 392 * lpfc_config_port_post - Perform lpfc initialization after config port
 393 * @phba: pointer to lpfc hba data structure.
 394 *
 395 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 396 * command call. It performs all internal resource and state setups on the
 397 * port: post IOCB buffers, enable appropriate host interrupt attentions,
 398 * ELS ring timers, etc.
 399 *
 400 * Return codes
 401 *   0 - success.
 402 *   Any other value - error.
 403 **/
 404int
 405lpfc_config_port_post(struct lpfc_hba *phba)
 406{
 407        struct lpfc_vport *vport = phba->pport;
 408        struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 409        LPFC_MBOXQ_t *pmb;
 410        MAILBOX_t *mb;
 411        struct lpfc_dmabuf *mp;
 412        struct lpfc_sli *psli = &phba->sli;
 413        uint32_t status, timeout;
 414        int i, j;
 415        int rc;
 416
 417        spin_lock_irq(&phba->hbalock);
 418        /*
 419         * If the Config port completed correctly the HBA is not
 420         * over heated any more.
 421         */
 422        if (phba->over_temp_state == HBA_OVER_TEMP)
 423                phba->over_temp_state = HBA_NORMAL_TEMP;
 424        spin_unlock_irq(&phba->hbalock);
 425
 426        pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 427        if (!pmb) {
 428                phba->link_state = LPFC_HBA_ERROR;
 429                return -ENOMEM;
 430        }
 431        mb = &pmb->u.mb;
 432
 433        /* Get login parameters for NID.  */
 434        rc = lpfc_read_sparam(phba, pmb, 0);
 435        if (rc) {
 436                mempool_free(pmb, phba->mbox_mem_pool);
 437                return -ENOMEM;
 438        }
 439
 440        pmb->vport = vport;
 441        if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 442                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 443                                "0448 Adapter failed init, mbxCmd x%x "
 444                                "READ_SPARM mbxStatus x%x\n",
 445                                mb->mbxCommand, mb->mbxStatus);
 446                phba->link_state = LPFC_HBA_ERROR;
 447                mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 448                mempool_free(pmb, phba->mbox_mem_pool);
 449                lpfc_mbuf_free(phba, mp->virt, mp->phys);
 450                kfree(mp);
 451                return -EIO;
 452        }
 453
 454        mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 455
 456        memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 457        lpfc_mbuf_free(phba, mp->virt, mp->phys);
 458        kfree(mp);
 459        pmb->ctx_buf = NULL;
 460        lpfc_update_vport_wwn(vport);
 461
 462        /* Update the fc_host data structures with new wwn. */
 463        fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 464        fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 465        fc_host_max_npiv_vports(shost) = phba->max_vpi;
 466
 467        /* If no serial number in VPD data, use low 6 bytes of WWNN */
 468        /* This should be consolidated into parse_vpd ? - mr */
 469        if (phba->SerialNumber[0] == 0) {
 470                uint8_t *outptr;
 471
 472                outptr = &vport->fc_nodename.u.s.IEEE[0];
 473                for (i = 0; i < 12; i++) {
 474                        status = *outptr++;
 475                        j = ((status & 0xf0) >> 4);
 476                        if (j <= 9)
 477                                phba->SerialNumber[i] =
 478                                    (char)((uint8_t) 0x30 + (uint8_t) j);
 479                        else
 480                                phba->SerialNumber[i] =
 481                                    (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 482                        i++;
 483                        j = (status & 0xf);
 484                        if (j <= 9)
 485                                phba->SerialNumber[i] =
 486                                    (char)((uint8_t) 0x30 + (uint8_t) j);
 487                        else
 488                                phba->SerialNumber[i] =
 489                                    (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 490                }
 491        }
 492
 493        lpfc_read_config(phba, pmb);
 494        pmb->vport = vport;
 495        if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 496                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 497                                "0453 Adapter failed to init, mbxCmd x%x "
 498                                "READ_CONFIG, mbxStatus x%x\n",
 499                                mb->mbxCommand, mb->mbxStatus);
 500                phba->link_state = LPFC_HBA_ERROR;
 501                mempool_free( pmb, phba->mbox_mem_pool);
 502                return -EIO;
 503        }
 504
 505        /* Check if the port is disabled */
 506        lpfc_sli_read_link_ste(phba);
 507
 508        /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 509        i = (mb->un.varRdConfig.max_xri + 1);
 510        if (phba->cfg_hba_queue_depth > i) {
 511                lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 512                                "3359 HBA queue depth changed from %d to %d\n",
 513                                phba->cfg_hba_queue_depth, i);
 514                phba->cfg_hba_queue_depth = i;
 515        }
 516
 517        /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3)  */
 518        i = (mb->un.varRdConfig.max_xri >> 3);
 519        if (phba->pport->cfg_lun_queue_depth > i) {
 520                lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 521                                "3360 LUN queue depth changed from %d to %d\n",
 522                                phba->pport->cfg_lun_queue_depth, i);
 523                phba->pport->cfg_lun_queue_depth = i;
 524        }
 525
 526        phba->lmt = mb->un.varRdConfig.lmt;
 527
 528        /* Get the default values for Model Name and Description */
 529        lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 530
 531        phba->link_state = LPFC_LINK_DOWN;
 532
 533        /* Only process IOCBs on ELS ring till hba_state is READY */
 534        if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
 535                psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
 536        if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
 537                psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
 538
 539        /* Post receive buffers for desired rings */
 540        if (phba->sli_rev != 3)
 541                lpfc_post_rcv_buf(phba);
 542
 543        /*
 544         * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 545         */
 546        if (phba->intr_type == MSIX) {
 547                rc = lpfc_config_msi(phba, pmb);
 548                if (rc) {
 549                        mempool_free(pmb, phba->mbox_mem_pool);
 550                        return -EIO;
 551                }
 552                rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 553                if (rc != MBX_SUCCESS) {
 554                        lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 555                                        "0352 Config MSI mailbox command "
 556                                        "failed, mbxCmd x%x, mbxStatus x%x\n",
 557                                        pmb->u.mb.mbxCommand,
 558                                        pmb->u.mb.mbxStatus);
 559                        mempool_free(pmb, phba->mbox_mem_pool);
 560                        return -EIO;
 561                }
 562        }
 563
 564        spin_lock_irq(&phba->hbalock);
 565        /* Initialize ERATT handling flag */
 566        phba->hba_flag &= ~HBA_ERATT_HANDLED;
 567
 568        /* Enable appropriate host interrupts */
 569        if (lpfc_readl(phba->HCregaddr, &status)) {
 570                spin_unlock_irq(&phba->hbalock);
 571                return -EIO;
 572        }
 573        status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 574        if (psli->num_rings > 0)
 575                status |= HC_R0INT_ENA;
 576        if (psli->num_rings > 1)
 577                status |= HC_R1INT_ENA;
 578        if (psli->num_rings > 2)
 579                status |= HC_R2INT_ENA;
 580        if (psli->num_rings > 3)
 581                status |= HC_R3INT_ENA;
 582
 583        if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 584            (phba->cfg_poll & DISABLE_FCP_RING_INT))
 585                status &= ~(HC_R0INT_ENA);
 586
 587        writel(status, phba->HCregaddr);
 588        readl(phba->HCregaddr); /* flush */
 589        spin_unlock_irq(&phba->hbalock);
 590
 591        /* Set up ring-0 (ELS) timer */
 592        timeout = phba->fc_ratov * 2;
 593        mod_timer(&vport->els_tmofunc,
 594                  jiffies + msecs_to_jiffies(1000 * timeout));
 595        /* Set up heart beat (HB) timer */
 596        mod_timer(&phba->hb_tmofunc,
 597                  jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 598        phba->hb_outstanding = 0;
 599        phba->last_completion_time = jiffies;
 600        /* Set up error attention (ERATT) polling timer */
 601        mod_timer(&phba->eratt_poll,
 602                  jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
 603
 604        if (phba->hba_flag & LINK_DISABLED) {
 605                lpfc_printf_log(phba,
 606                        KERN_ERR, LOG_INIT,
 607                        "2598 Adapter Link is disabled.\n");
 608                lpfc_down_link(phba, pmb);
 609                pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 610                rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 611                if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 612                        lpfc_printf_log(phba,
 613                        KERN_ERR, LOG_INIT,
 614                        "2599 Adapter failed to issue DOWN_LINK"
 615                        " mbox command rc 0x%x\n", rc);
 616
 617                        mempool_free(pmb, phba->mbox_mem_pool);
 618                        return -EIO;
 619                }
 620        } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 621                mempool_free(pmb, phba->mbox_mem_pool);
 622                rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 623                if (rc)
 624                        return rc;
 625        }
 626        /* MBOX buffer will be freed in mbox compl */
 627        pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 628        if (!pmb) {
 629                phba->link_state = LPFC_HBA_ERROR;
 630                return -ENOMEM;
 631        }
 632
 633        lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 634        pmb->mbox_cmpl = lpfc_config_async_cmpl;
 635        pmb->vport = phba->pport;
 636        rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 637
 638        if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 639                lpfc_printf_log(phba,
 640                                KERN_ERR,
 641                                LOG_INIT,
 642                                "0456 Adapter failed to issue "
 643                                "ASYNCEVT_ENABLE mbox status x%x\n",
 644                                rc);
 645                mempool_free(pmb, phba->mbox_mem_pool);
 646        }
 647
 648        /* Get Option rom version */
 649        pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 650        if (!pmb) {
 651                phba->link_state = LPFC_HBA_ERROR;
 652                return -ENOMEM;
 653        }
 654
 655        lpfc_dump_wakeup_param(phba, pmb);
 656        pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 657        pmb->vport = phba->pport;
 658        rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 659
 660        if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 661                lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 662                                "to get Option ROM version status x%x\n", rc);
 663                mempool_free(pmb, phba->mbox_mem_pool);
 664        }
 665
 666        return 0;
 667}
 668
 669/**
 670 * lpfc_hba_init_link - Initialize the FC link
 671 * @phba: pointer to lpfc hba data structure.
 672 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 673 *
 674 * This routine will issue the INIT_LINK mailbox command call.
 675 * It is available to other drivers through the lpfc_hba data
 676 * structure for use as a delayed link up mechanism with the
 677 * module parameter lpfc_suppress_link_up.
 678 *
 679 * Return code
 680 *              0 - success
 681 *              Any other value - error
 682 **/
 683static int
 684lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 685{
 686        return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 687}
 688
 689/**
 690 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 691 * @phba: pointer to lpfc hba data structure.
 692 * @fc_topology: desired fc topology.
 693 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 694 *
 695 * This routine will issue the INIT_LINK mailbox command call.
 696 * It is available to other drivers through the lpfc_hba data
 697 * structure for use as a delayed link up mechanism with the
 698 * module parameter lpfc_suppress_link_up.
 699 *
 700 * Return code
 701 *              0 - success
 702 *              Any other value - error
 703 **/
 704int
 705lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 706                               uint32_t flag)
 707{
 708        struct lpfc_vport *vport = phba->pport;
 709        LPFC_MBOXQ_t *pmb;
 710        MAILBOX_t *mb;
 711        int rc;
 712
 713        pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 714        if (!pmb) {
 715                phba->link_state = LPFC_HBA_ERROR;
 716                return -ENOMEM;
 717        }
 718        mb = &pmb->u.mb;
 719        pmb->vport = vport;
 720
 721        if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 722            ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 723             !(phba->lmt & LMT_1Gb)) ||
 724            ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 725             !(phba->lmt & LMT_2Gb)) ||
 726            ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 727             !(phba->lmt & LMT_4Gb)) ||
 728            ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 729             !(phba->lmt & LMT_8Gb)) ||
 730            ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 731             !(phba->lmt & LMT_10Gb)) ||
 732            ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 733             !(phba->lmt & LMT_16Gb)) ||
 734            ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
 735             !(phba->lmt & LMT_32Gb)) ||
 736            ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) &&
 737             !(phba->lmt & LMT_64Gb))) {
 738                /* Reset link speed to auto */
 739                lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 740                        "1302 Invalid speed for this board:%d "
 741                        "Reset link speed to auto.\n",
 742                        phba->cfg_link_speed);
 743                        phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 744        }
 745        lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 746        pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 747        if (phba->sli_rev < LPFC_SLI_REV4)
 748                lpfc_set_loopback_flag(phba);
 749        rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 750        if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 751                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 752                        "0498 Adapter failed to init, mbxCmd x%x "
 753                        "INIT_LINK, mbxStatus x%x\n",
 754                        mb->mbxCommand, mb->mbxStatus);
 755                if (phba->sli_rev <= LPFC_SLI_REV3) {
 756                        /* Clear all interrupt enable conditions */
 757                        writel(0, phba->HCregaddr);
 758                        readl(phba->HCregaddr); /* flush */
 759                        /* Clear all pending interrupts */
 760                        writel(0xffffffff, phba->HAregaddr);
 761                        readl(phba->HAregaddr); /* flush */
 762                }
 763                phba->link_state = LPFC_HBA_ERROR;
 764                if (rc != MBX_BUSY || flag == MBX_POLL)
 765                        mempool_free(pmb, phba->mbox_mem_pool);
 766                return -EIO;
 767        }
 768        phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 769        if (flag == MBX_POLL)
 770                mempool_free(pmb, phba->mbox_mem_pool);
 771
 772        return 0;
 773}
 774
 775/**
 776 * lpfc_hba_down_link - this routine downs the FC link
 777 * @phba: pointer to lpfc hba data structure.
 778 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 779 *
 780 * This routine will issue the DOWN_LINK mailbox command call.
 781 * It is available to other drivers through the lpfc_hba data
 782 * structure for use to stop the link.
 783 *
 784 * Return code
 785 *              0 - success
 786 *              Any other value - error
 787 **/
 788static int
 789lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 790{
 791        LPFC_MBOXQ_t *pmb;
 792        int rc;
 793
 794        pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 795        if (!pmb) {
 796                phba->link_state = LPFC_HBA_ERROR;
 797                return -ENOMEM;
 798        }
 799
 800        lpfc_printf_log(phba,
 801                KERN_ERR, LOG_INIT,
 802                "0491 Adapter Link is disabled.\n");
 803        lpfc_down_link(phba, pmb);
 804        pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 805        rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 806        if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 807                lpfc_printf_log(phba,
 808                KERN_ERR, LOG_INIT,
 809                "2522 Adapter failed to issue DOWN_LINK"
 810                " mbox command rc 0x%x\n", rc);
 811
 812                mempool_free(pmb, phba->mbox_mem_pool);
 813                return -EIO;
 814        }
 815        if (flag == MBX_POLL)
 816                mempool_free(pmb, phba->mbox_mem_pool);
 817
 818        return 0;
 819}
 820
 821/**
 822 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 823 * @phba: pointer to lpfc HBA data structure.
 824 *
 825 * This routine will do LPFC uninitialization before the HBA is reset when
 826 * bringing down the SLI Layer.
 827 *
 828 * Return codes
 829 *   0 - success.
 830 *   Any other value - error.
 831 **/
 832int
 833lpfc_hba_down_prep(struct lpfc_hba *phba)
 834{
 835        struct lpfc_vport **vports;
 836        int i;
 837
 838        if (phba->sli_rev <= LPFC_SLI_REV3) {
 839                /* Disable interrupts */
 840                writel(0, phba->HCregaddr);
 841                readl(phba->HCregaddr); /* flush */
 842        }
 843
 844        if (phba->pport->load_flag & FC_UNLOADING)
 845                lpfc_cleanup_discovery_resources(phba->pport);
 846        else {
 847                vports = lpfc_create_vport_work_array(phba);
 848                if (vports != NULL)
 849                        for (i = 0; i <= phba->max_vports &&
 850                                vports[i] != NULL; i++)
 851                                lpfc_cleanup_discovery_resources(vports[i]);
 852                lpfc_destroy_vport_work_array(phba, vports);
 853        }
 854        return 0;
 855}
 856
 857/**
 858 * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 859 * rspiocb which got deferred
 860 *
 861 * @phba: pointer to lpfc HBA data structure.
 862 *
 863 * This routine will cleanup completed slow path events after HBA is reset
 864 * when bringing down the SLI Layer.
 865 *
 866 *
 867 * Return codes
 868 *   void.
 869 **/
 870static void
 871lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 872{
 873        struct lpfc_iocbq *rspiocbq;
 874        struct hbq_dmabuf *dmabuf;
 875        struct lpfc_cq_event *cq_event;
 876
 877        spin_lock_irq(&phba->hbalock);
 878        phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 879        spin_unlock_irq(&phba->hbalock);
 880
 881        while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 882                /* Get the response iocb from the head of work queue */
 883                spin_lock_irq(&phba->hbalock);
 884                list_remove_head(&phba->sli4_hba.sp_queue_event,
 885                                 cq_event, struct lpfc_cq_event, list);
 886                spin_unlock_irq(&phba->hbalock);
 887
 888                switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 889                case CQE_CODE_COMPL_WQE:
 890                        rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 891                                                 cq_event);
 892                        lpfc_sli_release_iocbq(phba, rspiocbq);
 893                        break;
 894                case CQE_CODE_RECEIVE:
 895                case CQE_CODE_RECEIVE_V1:
 896                        dmabuf = container_of(cq_event, struct hbq_dmabuf,
 897                                              cq_event);
 898                        lpfc_in_buf_free(phba, &dmabuf->dbuf);
 899                }
 900        }
 901}
 902
 903/**
 904 * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 905 * @phba: pointer to lpfc HBA data structure.
 906 *
 907 * This routine will cleanup posted ELS buffers after the HBA is reset
 908 * when bringing down the SLI Layer.
 909 *
 910 *
 911 * Return codes
 912 *   void.
 913 **/
 914static void
 915lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 916{
 917        struct lpfc_sli *psli = &phba->sli;
 918        struct lpfc_sli_ring *pring;
 919        struct lpfc_dmabuf *mp, *next_mp;
 920        LIST_HEAD(buflist);
 921        int count;
 922
 923        if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 924                lpfc_sli_hbqbuf_free_all(phba);
 925        else {
 926                /* Cleanup preposted buffers on the ELS ring */
 927                pring = &psli->sli3_ring[LPFC_ELS_RING];
 928                spin_lock_irq(&phba->hbalock);
 929                list_splice_init(&pring->postbufq, &buflist);
 930                spin_unlock_irq(&phba->hbalock);
 931
 932                count = 0;
 933                list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 934                        list_del(&mp->list);
 935                        count++;
 936                        lpfc_mbuf_free(phba, mp->virt, mp->phys);
 937                        kfree(mp);
 938                }
 939
 940                spin_lock_irq(&phba->hbalock);
 941                pring->postbufq_cnt -= count;
 942                spin_unlock_irq(&phba->hbalock);
 943        }
 944}
 945
 946/**
 947 * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 948 * @phba: pointer to lpfc HBA data structure.
 949 *
 950 * This routine will cleanup the txcmplq after the HBA is reset when bringing
 951 * down the SLI Layer.
 952 *
 953 * Return codes
 954 *   void
 955 **/
 956static void
 957lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 958{
 959        struct lpfc_sli *psli = &phba->sli;
 960        struct lpfc_queue *qp = NULL;
 961        struct lpfc_sli_ring *pring;
 962        LIST_HEAD(completions);
 963        int i;
 964        struct lpfc_iocbq *piocb, *next_iocb;
 965
 966        if (phba->sli_rev != LPFC_SLI_REV4) {
 967                for (i = 0; i < psli->num_rings; i++) {
 968                        pring = &psli->sli3_ring[i];
 969                        spin_lock_irq(&phba->hbalock);
 970                        /* At this point in time the HBA is either reset or DOA
 971                         * Nothing should be on txcmplq as it will
 972                         * NEVER complete.
 973                         */
 974                        list_splice_init(&pring->txcmplq, &completions);
 975                        pring->txcmplq_cnt = 0;
 976                        spin_unlock_irq(&phba->hbalock);
 977
 978                        lpfc_sli_abort_iocb_ring(phba, pring);
 979                }
 980                /* Cancel all the IOCBs from the completions list */
 981                lpfc_sli_cancel_iocbs(phba, &completions,
 982                                      IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 983                return;
 984        }
 985        list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
 986                pring = qp->pring;
 987                if (!pring)
 988                        continue;
 989                spin_lock_irq(&pring->ring_lock);
 990                list_for_each_entry_safe(piocb, next_iocb,
 991                                         &pring->txcmplq, list)
 992                        piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
 993                list_splice_init(&pring->txcmplq, &completions);
 994                pring->txcmplq_cnt = 0;
 995                spin_unlock_irq(&pring->ring_lock);
 996                lpfc_sli_abort_iocb_ring(phba, pring);
 997        }
 998        /* Cancel all the IOCBs from the completions list */
 999        lpfc_sli_cancel_iocbs(phba, &completions,
1000                              IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
1001}
1002
1003/**
1004 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
1005        int i;
1006 * @phba: pointer to lpfc HBA data structure.
1007 *
1008 * This routine will do uninitialization after the HBA is reset when bring
1009 * down the SLI Layer.
1010 *
1011 * Return codes
1012 *   0 - success.
1013 *   Any other value - error.
1014 **/
1015static int
1016lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1017{
1018        lpfc_hba_free_post_buf(phba);
1019        lpfc_hba_clean_txcmplq(phba);
1020        return 0;
1021}
1022
1023/**
1024 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1025 * @phba: pointer to lpfc HBA data structure.
1026 *
1027 * This routine will do uninitialization after the HBA is reset when bring
1028 * down the SLI Layer.
1029 *
1030 * Return codes
1031 *   0 - success.
1032 *   Any other value - error.
1033 **/
1034static int
1035lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1036{
1037        struct lpfc_io_buf *psb, *psb_next;
1038        struct lpfc_nvmet_rcv_ctx *ctxp, *ctxp_next;
1039        struct lpfc_sli4_hdw_queue *qp;
1040        LIST_HEAD(aborts);
1041        LIST_HEAD(nvme_aborts);
1042        LIST_HEAD(nvmet_aborts);
1043        struct lpfc_sglq *sglq_entry = NULL;
1044        int cnt, idx;
1045
1046
1047        lpfc_sli_hbqbuf_free_all(phba);
1048        lpfc_hba_clean_txcmplq(phba);
1049
1050        /* At this point in time the HBA is either reset or DOA. Either
1051         * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1052         * on the lpfc_els_sgl_list so that it can either be freed if the
1053         * driver is unloading or reposted if the driver is restarting
1054         * the port.
1055         */
1056        spin_lock_irq(&phba->hbalock);  /* required for lpfc_els_sgl_list and */
1057                                        /* scsl_buf_list */
1058        /* sgl_list_lock required because worker thread uses this
1059         * list.
1060         */
1061        spin_lock(&phba->sli4_hba.sgl_list_lock);
1062        list_for_each_entry(sglq_entry,
1063                &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1064                sglq_entry->state = SGL_FREED;
1065
1066        list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1067                        &phba->sli4_hba.lpfc_els_sgl_list);
1068
1069
1070        spin_unlock(&phba->sli4_hba.sgl_list_lock);
1071
1072        /* abts_xxxx_buf_list_lock required because worker thread uses this
1073         * list.
1074         */
1075        cnt = 0;
1076        for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
1077                qp = &phba->sli4_hba.hdwq[idx];
1078
1079                spin_lock(&qp->abts_io_buf_list_lock);
1080                list_splice_init(&qp->lpfc_abts_io_buf_list,
1081                                 &aborts);
1082
1083                list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1084                        psb->pCmd = NULL;
1085                        psb->status = IOSTAT_SUCCESS;
1086                        cnt++;
1087                }
1088                spin_lock(&qp->io_buf_list_put_lock);
1089                list_splice_init(&aborts, &qp->lpfc_io_buf_list_put);
1090                qp->put_io_bufs += qp->abts_scsi_io_bufs;
1091                qp->put_io_bufs += qp->abts_nvme_io_bufs;
1092                qp->abts_scsi_io_bufs = 0;
1093                qp->abts_nvme_io_bufs = 0;
1094                spin_unlock(&qp->io_buf_list_put_lock);
1095                spin_unlock(&qp->abts_io_buf_list_lock);
1096        }
1097        spin_unlock_irq(&phba->hbalock);
1098
1099        if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1100                spin_lock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1101                list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1102                                 &nvmet_aborts);
1103                spin_unlock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1104                list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1105                        ctxp->flag &= ~(LPFC_NVMET_XBUSY | LPFC_NVMET_ABORT_OP);
1106                        lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1107                }
1108        }
1109
1110        lpfc_sli4_free_sp_events(phba);
1111        return cnt;
1112}
1113
1114/**
1115 * lpfc_hba_down_post - Wrapper func for hba down post routine
1116 * @phba: pointer to lpfc HBA data structure.
1117 *
1118 * This routine wraps the actual SLI3 or SLI4 routine for performing
1119 * uninitialization after the HBA is reset when bring down the SLI Layer.
1120 *
1121 * Return codes
1122 *   0 - success.
1123 *   Any other value - error.
1124 **/
1125int
1126lpfc_hba_down_post(struct lpfc_hba *phba)
1127{
1128        return (*phba->lpfc_hba_down_post)(phba);
1129}
1130
1131/**
1132 * lpfc_hb_timeout - The HBA-timer timeout handler
1133 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1134 *
1135 * This is the HBA-timer timeout handler registered to the lpfc driver. When
1136 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1137 * work-port-events bitmap and the worker thread is notified. This timeout
1138 * event will be used by the worker thread to invoke the actual timeout
1139 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1140 * be performed in the timeout handler and the HBA timeout event bit shall
1141 * be cleared by the worker thread after it has taken the event bitmap out.
1142 **/
1143static void
1144lpfc_hb_timeout(struct timer_list *t)
1145{
1146        struct lpfc_hba *phba;
1147        uint32_t tmo_posted;
1148        unsigned long iflag;
1149
1150        phba = from_timer(phba, t, hb_tmofunc);
1151
1152        /* Check for heart beat timeout conditions */
1153        spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1154        tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1155        if (!tmo_posted)
1156                phba->pport->work_port_events |= WORKER_HB_TMO;
1157        spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1158
1159        /* Tell the worker thread there is work to do */
1160        if (!tmo_posted)
1161                lpfc_worker_wake_up(phba);
1162        return;
1163}
1164
1165/**
1166 * lpfc_rrq_timeout - The RRQ-timer timeout handler
1167 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1168 *
1169 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1170 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1171 * work-port-events bitmap and the worker thread is notified. This timeout
1172 * event will be used by the worker thread to invoke the actual timeout
1173 * handler routine, lpfc_rrq_handler. Any periodical operations will
1174 * be performed in the timeout handler and the RRQ timeout event bit shall
1175 * be cleared by the worker thread after it has taken the event bitmap out.
1176 **/
1177static void
1178lpfc_rrq_timeout(struct timer_list *t)
1179{
1180        struct lpfc_hba *phba;
1181        unsigned long iflag;
1182
1183        phba = from_timer(phba, t, rrq_tmr);
1184        spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1185        if (!(phba->pport->load_flag & FC_UNLOADING))
1186                phba->hba_flag |= HBA_RRQ_ACTIVE;
1187        else
1188                phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1189        spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1190
1191        if (!(phba->pport->load_flag & FC_UNLOADING))
1192                lpfc_worker_wake_up(phba);
1193}
1194
1195/**
1196 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1197 * @phba: pointer to lpfc hba data structure.
1198 * @pmboxq: pointer to the driver internal queue element for mailbox command.
1199 *
1200 * This is the callback function to the lpfc heart-beat mailbox command.
1201 * If configured, the lpfc driver issues the heart-beat mailbox command to
1202 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1203 * heart-beat mailbox command is issued, the driver shall set up heart-beat
1204 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1205 * heart-beat outstanding state. Once the mailbox command comes back and
1206 * no error conditions detected, the heart-beat mailbox command timer is
1207 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1208 * state is cleared for the next heart-beat. If the timer expired with the
1209 * heart-beat outstanding state set, the driver will put the HBA offline.
1210 **/
1211static void
1212lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1213{
1214        unsigned long drvr_flag;
1215
1216        spin_lock_irqsave(&phba->hbalock, drvr_flag);
1217        phba->hb_outstanding = 0;
1218        spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1219
1220        /* Check and reset heart-beat timer is necessary */
1221        mempool_free(pmboxq, phba->mbox_mem_pool);
1222        if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1223                !(phba->link_state == LPFC_HBA_ERROR) &&
1224                !(phba->pport->load_flag & FC_UNLOADING))
1225                mod_timer(&phba->hb_tmofunc,
1226                          jiffies +
1227                          msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1228        return;
1229}
1230
1231static void
1232lpfc_hb_eq_delay_work(struct work_struct *work)
1233{
1234        struct lpfc_hba *phba = container_of(to_delayed_work(work),
1235                                             struct lpfc_hba, eq_delay_work);
1236        struct lpfc_eq_intr_info *eqi, *eqi_new;
1237        struct lpfc_queue *eq, *eq_next;
1238        unsigned char *eqcnt = NULL;
1239        uint32_t usdelay;
1240        int i;
1241        bool update = false;
1242
1243        if (!phba->cfg_auto_imax || phba->pport->load_flag & FC_UNLOADING)
1244                return;
1245
1246        if (phba->link_state == LPFC_HBA_ERROR ||
1247            phba->pport->fc_flag & FC_OFFLINE_MODE)
1248                goto requeue;
1249
1250        eqcnt = kcalloc(num_possible_cpus(), sizeof(unsigned char),
1251                        GFP_KERNEL);
1252        if (!eqcnt)
1253                goto requeue;
1254
1255        if (phba->cfg_irq_chann > 1) {
1256                /* Loop thru all IRQ vectors */
1257                for (i = 0; i < phba->cfg_irq_chann; i++) {
1258                        /* Get the EQ corresponding to the IRQ vector */
1259                        eq = phba->sli4_hba.hba_eq_hdl[i].eq;
1260                        if (!eq)
1261                                continue;
1262                        if (eq->q_mode) {
1263                                update = true;
1264                                break;
1265                        }
1266                        if (eqcnt[eq->last_cpu] < 2)
1267                                eqcnt[eq->last_cpu]++;
1268                }
1269        } else
1270                update = true;
1271
1272        for_each_present_cpu(i) {
1273                eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i);
1274                if (!update && eqcnt[i] < 2) {
1275                        eqi->icnt = 0;
1276                        continue;
1277                }
1278
1279                usdelay = (eqi->icnt / LPFC_IMAX_THRESHOLD) *
1280                           LPFC_EQ_DELAY_STEP;
1281                if (usdelay > LPFC_MAX_AUTO_EQ_DELAY)
1282                        usdelay = LPFC_MAX_AUTO_EQ_DELAY;
1283
1284                eqi->icnt = 0;
1285
1286                list_for_each_entry_safe(eq, eq_next, &eqi->list, cpu_list) {
1287                        if (eq->last_cpu != i) {
1288                                eqi_new = per_cpu_ptr(phba->sli4_hba.eq_info,
1289                                                      eq->last_cpu);
1290                                list_move_tail(&eq->cpu_list, &eqi_new->list);
1291                                continue;
1292                        }
1293                        if (usdelay != eq->q_mode)
1294                                lpfc_modify_hba_eq_delay(phba, eq->hdwq, 1,
1295                                                         usdelay);
1296                }
1297        }
1298
1299        kfree(eqcnt);
1300
1301requeue:
1302        queue_delayed_work(phba->wq, &phba->eq_delay_work,
1303                           msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
1304}
1305
1306/**
1307 * lpfc_hb_mxp_handler - Multi-XRI pools handler to adjust XRI distribution
1308 * @phba: pointer to lpfc hba data structure.
1309 *
1310 * For each heartbeat, this routine does some heuristic methods to adjust
1311 * XRI distribution. The goal is to fully utilize free XRIs.
1312 **/
1313static void lpfc_hb_mxp_handler(struct lpfc_hba *phba)
1314{
1315        u32 i;
1316        u32 hwq_count;
1317
1318        hwq_count = phba->cfg_hdw_queue;
1319        for (i = 0; i < hwq_count; i++) {
1320                /* Adjust XRIs in private pool */
1321                lpfc_adjust_pvt_pool_count(phba, i);
1322
1323                /* Adjust high watermark */
1324                lpfc_adjust_high_watermark(phba, i);
1325
1326#ifdef LPFC_MXP_STAT
1327                /* Snapshot pbl, pvt and busy count */
1328                lpfc_snapshot_mxp(phba, i);
1329#endif
1330        }
1331}
1332
1333/**
1334 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1335 * @phba: pointer to lpfc hba data structure.
1336 *
1337 * This is the actual HBA-timer timeout handler to be invoked by the worker
1338 * thread whenever the HBA timer fired and HBA-timeout event posted. This
1339 * handler performs any periodic operations needed for the device. If such
1340 * periodic event has already been attended to either in the interrupt handler
1341 * or by processing slow-ring or fast-ring events within the HBA-timer
1342 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1343 * the timer for the next timeout period. If lpfc heart-beat mailbox command
1344 * is configured and there is no heart-beat mailbox command outstanding, a
1345 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1346 * has been a heart-beat mailbox command outstanding, the HBA shall be put
1347 * to offline.
1348 **/
1349void
1350lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1351{
1352        struct lpfc_vport **vports;
1353        LPFC_MBOXQ_t *pmboxq;
1354        struct lpfc_dmabuf *buf_ptr;
1355        int retval, i;
1356        struct lpfc_sli *psli = &phba->sli;
1357        LIST_HEAD(completions);
1358
1359        if (phba->cfg_xri_rebalancing) {
1360                /* Multi-XRI pools handler */
1361                lpfc_hb_mxp_handler(phba);
1362        }
1363
1364        vports = lpfc_create_vport_work_array(phba);
1365        if (vports != NULL)
1366                for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1367                        lpfc_rcv_seq_check_edtov(vports[i]);
1368                        lpfc_fdmi_num_disc_check(vports[i]);
1369                }
1370        lpfc_destroy_vport_work_array(phba, vports);
1371
1372        if ((phba->link_state == LPFC_HBA_ERROR) ||
1373                (phba->pport->load_flag & FC_UNLOADING) ||
1374                (phba->pport->fc_flag & FC_OFFLINE_MODE))
1375                return;
1376
1377        spin_lock_irq(&phba->pport->work_port_lock);
1378
1379        if (time_after(phba->last_completion_time +
1380                        msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1381                        jiffies)) {
1382                spin_unlock_irq(&phba->pport->work_port_lock);
1383                if (!phba->hb_outstanding)
1384                        mod_timer(&phba->hb_tmofunc,
1385                                jiffies +
1386                                msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1387                else
1388                        mod_timer(&phba->hb_tmofunc,
1389                                jiffies +
1390                                msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1391                return;
1392        }
1393        spin_unlock_irq(&phba->pport->work_port_lock);
1394
1395        if (phba->elsbuf_cnt &&
1396                (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1397                spin_lock_irq(&phba->hbalock);
1398                list_splice_init(&phba->elsbuf, &completions);
1399                phba->elsbuf_cnt = 0;
1400                phba->elsbuf_prev_cnt = 0;
1401                spin_unlock_irq(&phba->hbalock);
1402
1403                while (!list_empty(&completions)) {
1404                        list_remove_head(&completions, buf_ptr,
1405                                struct lpfc_dmabuf, list);
1406                        lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1407                        kfree(buf_ptr);
1408                }
1409        }
1410        phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1411
1412        /* If there is no heart beat outstanding, issue a heartbeat command */
1413        if (phba->cfg_enable_hba_heartbeat) {
1414                if (!phba->hb_outstanding) {
1415                        if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1416                                (list_empty(&psli->mboxq))) {
1417                                pmboxq = mempool_alloc(phba->mbox_mem_pool,
1418                                                        GFP_KERNEL);
1419                                if (!pmboxq) {
1420                                        mod_timer(&phba->hb_tmofunc,
1421                                                 jiffies +
1422                                                 msecs_to_jiffies(1000 *
1423                                                 LPFC_HB_MBOX_INTERVAL));
1424                                        return;
1425                                }
1426
1427                                lpfc_heart_beat(phba, pmboxq);
1428                                pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1429                                pmboxq->vport = phba->pport;
1430                                retval = lpfc_sli_issue_mbox(phba, pmboxq,
1431                                                MBX_NOWAIT);
1432
1433                                if (retval != MBX_BUSY &&
1434                                        retval != MBX_SUCCESS) {
1435                                        mempool_free(pmboxq,
1436                                                        phba->mbox_mem_pool);
1437                                        mod_timer(&phba->hb_tmofunc,
1438                                                jiffies +
1439                                                msecs_to_jiffies(1000 *
1440                                                LPFC_HB_MBOX_INTERVAL));
1441                                        return;
1442                                }
1443                                phba->skipped_hb = 0;
1444                                phba->hb_outstanding = 1;
1445                        } else if (time_before_eq(phba->last_completion_time,
1446                                        phba->skipped_hb)) {
1447                                lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1448                                        "2857 Last completion time not "
1449                                        " updated in %d ms\n",
1450                                        jiffies_to_msecs(jiffies
1451                                                 - phba->last_completion_time));
1452                        } else
1453                                phba->skipped_hb = jiffies;
1454
1455                        mod_timer(&phba->hb_tmofunc,
1456                                 jiffies +
1457                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1458                        return;
1459                } else {
1460                        /*
1461                        * If heart beat timeout called with hb_outstanding set
1462                        * we need to give the hb mailbox cmd a chance to
1463                        * complete or TMO.
1464                        */
1465                        lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1466                                        "0459 Adapter heartbeat still out"
1467                                        "standing:last compl time was %d ms.\n",
1468                                        jiffies_to_msecs(jiffies
1469                                                 - phba->last_completion_time));
1470                        mod_timer(&phba->hb_tmofunc,
1471                                jiffies +
1472                                msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1473                }
1474        } else {
1475                        mod_timer(&phba->hb_tmofunc,
1476                                jiffies +
1477                                msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1478        }
1479}
1480
1481/**
1482 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1483 * @phba: pointer to lpfc hba data structure.
1484 *
1485 * This routine is called to bring the HBA offline when HBA hardware error
1486 * other than Port Error 6 has been detected.
1487 **/
1488static void
1489lpfc_offline_eratt(struct lpfc_hba *phba)
1490{
1491        struct lpfc_sli   *psli = &phba->sli;
1492
1493        spin_lock_irq(&phba->hbalock);
1494        psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1495        spin_unlock_irq(&phba->hbalock);
1496        lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1497
1498        lpfc_offline(phba);
1499        lpfc_reset_barrier(phba);
1500        spin_lock_irq(&phba->hbalock);
1501        lpfc_sli_brdreset(phba);
1502        spin_unlock_irq(&phba->hbalock);
1503        lpfc_hba_down_post(phba);
1504        lpfc_sli_brdready(phba, HS_MBRDY);
1505        lpfc_unblock_mgmt_io(phba);
1506        phba->link_state = LPFC_HBA_ERROR;
1507        return;
1508}
1509
1510/**
1511 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1512 * @phba: pointer to lpfc hba data structure.
1513 *
1514 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1515 * other than Port Error 6 has been detected.
1516 **/
1517void
1518lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1519{
1520        spin_lock_irq(&phba->hbalock);
1521        phba->link_state = LPFC_HBA_ERROR;
1522        spin_unlock_irq(&phba->hbalock);
1523
1524        lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1525        lpfc_sli_flush_io_rings(phba);
1526        lpfc_offline(phba);
1527        lpfc_hba_down_post(phba);
1528        lpfc_unblock_mgmt_io(phba);
1529}
1530
1531/**
1532 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1533 * @phba: pointer to lpfc hba data structure.
1534 *
1535 * This routine is invoked to handle the deferred HBA hardware error
1536 * conditions. This type of error is indicated by HBA by setting ER1
1537 * and another ER bit in the host status register. The driver will
1538 * wait until the ER1 bit clears before handling the error condition.
1539 **/
1540static void
1541lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1542{
1543        uint32_t old_host_status = phba->work_hs;
1544        struct lpfc_sli *psli = &phba->sli;
1545
1546        /* If the pci channel is offline, ignore possible errors,
1547         * since we cannot communicate with the pci card anyway.
1548         */
1549        if (pci_channel_offline(phba->pcidev)) {
1550                spin_lock_irq(&phba->hbalock);
1551                phba->hba_flag &= ~DEFER_ERATT;
1552                spin_unlock_irq(&phba->hbalock);
1553                return;
1554        }
1555
1556        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1557                "0479 Deferred Adapter Hardware Error "
1558                "Data: x%x x%x x%x\n",
1559                phba->work_hs,
1560                phba->work_status[0], phba->work_status[1]);
1561
1562        spin_lock_irq(&phba->hbalock);
1563        psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1564        spin_unlock_irq(&phba->hbalock);
1565
1566
1567        /*
1568         * Firmware stops when it triggred erratt. That could cause the I/Os
1569         * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1570         * SCSI layer retry it after re-establishing link.
1571         */
1572        lpfc_sli_abort_fcp_rings(phba);
1573
1574        /*
1575         * There was a firmware error. Take the hba offline and then
1576         * attempt to restart it.
1577         */
1578        lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1579        lpfc_offline(phba);
1580
1581        /* Wait for the ER1 bit to clear.*/
1582        while (phba->work_hs & HS_FFER1) {
1583                msleep(100);
1584                if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1585                        phba->work_hs = UNPLUG_ERR ;
1586                        break;
1587                }
1588                /* If driver is unloading let the worker thread continue */
1589                if (phba->pport->load_flag & FC_UNLOADING) {
1590                        phba->work_hs = 0;
1591                        break;
1592                }
1593        }
1594
1595        /*
1596         * This is to ptrotect against a race condition in which
1597         * first write to the host attention register clear the
1598         * host status register.
1599         */
1600        if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1601                phba->work_hs = old_host_status & ~HS_FFER1;
1602
1603        spin_lock_irq(&phba->hbalock);
1604        phba->hba_flag &= ~DEFER_ERATT;
1605        spin_unlock_irq(&phba->hbalock);
1606        phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1607        phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1608}
1609
1610static void
1611lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1612{
1613        struct lpfc_board_event_header board_event;
1614        struct Scsi_Host *shost;
1615
1616        board_event.event_type = FC_REG_BOARD_EVENT;
1617        board_event.subcategory = LPFC_EVENT_PORTINTERR;
1618        shost = lpfc_shost_from_vport(phba->pport);
1619        fc_host_post_vendor_event(shost, fc_get_event_number(),
1620                                  sizeof(board_event),
1621                                  (char *) &board_event,
1622                                  LPFC_NL_VENDOR_ID);
1623}
1624
1625/**
1626 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1627 * @phba: pointer to lpfc hba data structure.
1628 *
1629 * This routine is invoked to handle the following HBA hardware error
1630 * conditions:
1631 * 1 - HBA error attention interrupt
1632 * 2 - DMA ring index out of range
1633 * 3 - Mailbox command came back as unknown
1634 **/
1635static void
1636lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1637{
1638        struct lpfc_vport *vport = phba->pport;
1639        struct lpfc_sli   *psli = &phba->sli;
1640        uint32_t event_data;
1641        unsigned long temperature;
1642        struct temp_event temp_event_data;
1643        struct Scsi_Host  *shost;
1644
1645        /* If the pci channel is offline, ignore possible errors,
1646         * since we cannot communicate with the pci card anyway.
1647         */
1648        if (pci_channel_offline(phba->pcidev)) {
1649                spin_lock_irq(&phba->hbalock);
1650                phba->hba_flag &= ~DEFER_ERATT;
1651                spin_unlock_irq(&phba->hbalock);
1652                return;
1653        }
1654
1655        /* If resets are disabled then leave the HBA alone and return */
1656        if (!phba->cfg_enable_hba_reset)
1657                return;
1658
1659        /* Send an internal error event to mgmt application */
1660        lpfc_board_errevt_to_mgmt(phba);
1661
1662        if (phba->hba_flag & DEFER_ERATT)
1663                lpfc_handle_deferred_eratt(phba);
1664
1665        if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1666                if (phba->work_hs & HS_FFER6)
1667                        /* Re-establishing Link */
1668                        lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1669                                        "1301 Re-establishing Link "
1670                                        "Data: x%x x%x x%x\n",
1671                                        phba->work_hs, phba->work_status[0],
1672                                        phba->work_status[1]);
1673                if (phba->work_hs & HS_FFER8)
1674                        /* Device Zeroization */
1675                        lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1676                                        "2861 Host Authentication device "
1677                                        "zeroization Data:x%x x%x x%x\n",
1678                                        phba->work_hs, phba->work_status[0],
1679                                        phba->work_status[1]);
1680
1681                spin_lock_irq(&phba->hbalock);
1682                psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1683                spin_unlock_irq(&phba->hbalock);
1684
1685                /*
1686                * Firmware stops when it triggled erratt with HS_FFER6.
1687                * That could cause the I/Os dropped by the firmware.
1688                * Error iocb (I/O) on txcmplq and let the SCSI layer
1689                * retry it after re-establishing link.
1690                */
1691                lpfc_sli_abort_fcp_rings(phba);
1692
1693                /*
1694                 * There was a firmware error.  Take the hba offline and then
1695                 * attempt to restart it.
1696                 */
1697                lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1698                lpfc_offline(phba);
1699                lpfc_sli_brdrestart(phba);
1700                if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1701                        lpfc_unblock_mgmt_io(phba);
1702                        return;
1703                }
1704                lpfc_unblock_mgmt_io(phba);
1705        } else if (phba->work_hs & HS_CRIT_TEMP) {
1706                temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1707                temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1708                temp_event_data.event_code = LPFC_CRIT_TEMP;
1709                temp_event_data.data = (uint32_t)temperature;
1710
1711                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1712                                "0406 Adapter maximum temperature exceeded "
1713                                "(%ld), taking this port offline "
1714                                "Data: x%x x%x x%x\n",
1715                                temperature, phba->work_hs,
1716                                phba->work_status[0], phba->work_status[1]);
1717
1718                shost = lpfc_shost_from_vport(phba->pport);
1719                fc_host_post_vendor_event(shost, fc_get_event_number(),
1720                                          sizeof(temp_event_data),
1721                                          (char *) &temp_event_data,
1722                                          SCSI_NL_VID_TYPE_PCI
1723                                          | PCI_VENDOR_ID_EMULEX);
1724
1725                spin_lock_irq(&phba->hbalock);
1726                phba->over_temp_state = HBA_OVER_TEMP;
1727                spin_unlock_irq(&phba->hbalock);
1728                lpfc_offline_eratt(phba);
1729
1730        } else {
1731                /* The if clause above forces this code path when the status
1732                 * failure is a value other than FFER6. Do not call the offline
1733                 * twice. This is the adapter hardware error path.
1734                 */
1735                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1736                                "0457 Adapter Hardware Error "
1737                                "Data: x%x x%x x%x\n",
1738                                phba->work_hs,
1739                                phba->work_status[0], phba->work_status[1]);
1740
1741                event_data = FC_REG_DUMP_EVENT;
1742                shost = lpfc_shost_from_vport(vport);
1743                fc_host_post_vendor_event(shost, fc_get_event_number(),
1744                                sizeof(event_data), (char *) &event_data,
1745                                SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1746
1747                lpfc_offline_eratt(phba);
1748        }
1749        return;
1750}
1751
1752/**
1753 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1754 * @phba: pointer to lpfc hba data structure.
1755 * @mbx_action: flag for mailbox shutdown action.
1756 *
1757 * This routine is invoked to perform an SLI4 port PCI function reset in
1758 * response to port status register polling attention. It waits for port
1759 * status register (ERR, RDY, RN) bits before proceeding with function reset.
1760 * During this process, interrupt vectors are freed and later requested
1761 * for handling possible port resource change.
1762 **/
1763static int
1764lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1765                            bool en_rn_msg)
1766{
1767        int rc;
1768        uint32_t intr_mode;
1769
1770        if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
1771            LPFC_SLI_INTF_IF_TYPE_2) {
1772                /*
1773                 * On error status condition, driver need to wait for port
1774                 * ready before performing reset.
1775                 */
1776                rc = lpfc_sli4_pdev_status_reg_wait(phba);
1777                if (rc)
1778                        return rc;
1779        }
1780
1781        /* need reset: attempt for port recovery */
1782        if (en_rn_msg)
1783                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1784                                "2887 Reset Needed: Attempting Port "
1785                                "Recovery...\n");
1786        lpfc_offline_prep(phba, mbx_action);
1787        lpfc_sli_flush_io_rings(phba);
1788        lpfc_offline(phba);
1789        /* release interrupt for possible resource change */
1790        lpfc_sli4_disable_intr(phba);
1791        rc = lpfc_sli_brdrestart(phba);
1792        if (rc) {
1793                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1794                                "6309 Failed to restart board\n");
1795                return rc;
1796        }
1797        /* request and enable interrupt */
1798        intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1799        if (intr_mode == LPFC_INTR_ERROR) {
1800                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1801                                "3175 Failed to enable interrupt\n");
1802                return -EIO;
1803        }
1804        phba->intr_mode = intr_mode;
1805        rc = lpfc_online(phba);
1806        if (rc == 0)
1807                lpfc_unblock_mgmt_io(phba);
1808
1809        return rc;
1810}
1811
1812/**
1813 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1814 * @phba: pointer to lpfc hba data structure.
1815 *
1816 * This routine is invoked to handle the SLI4 HBA hardware error attention
1817 * conditions.
1818 **/
1819static void
1820lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1821{
1822        struct lpfc_vport *vport = phba->pport;
1823        uint32_t event_data;
1824        struct Scsi_Host *shost;
1825        uint32_t if_type;
1826        struct lpfc_register portstat_reg = {0};
1827        uint32_t reg_err1, reg_err2;
1828        uint32_t uerrlo_reg, uemasklo_reg;
1829        uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1830        bool en_rn_msg = true;
1831        struct temp_event temp_event_data;
1832        struct lpfc_register portsmphr_reg;
1833        int rc, i;
1834
1835        /* If the pci channel is offline, ignore possible errors, since
1836         * we cannot communicate with the pci card anyway.
1837         */
1838        if (pci_channel_offline(phba->pcidev)) {
1839                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1840                                "3166 pci channel is offline\n");
1841                lpfc_sli4_offline_eratt(phba);
1842                return;
1843        }
1844
1845        memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1846        if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1847        switch (if_type) {
1848        case LPFC_SLI_INTF_IF_TYPE_0:
1849                pci_rd_rc1 = lpfc_readl(
1850                                phba->sli4_hba.u.if_type0.UERRLOregaddr,
1851                                &uerrlo_reg);
1852                pci_rd_rc2 = lpfc_readl(
1853                                phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1854                                &uemasklo_reg);
1855                /* consider PCI bus read error as pci_channel_offline */
1856                if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1857                        return;
1858                if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1859                        lpfc_sli4_offline_eratt(phba);
1860                        return;
1861                }
1862                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1863                                "7623 Checking UE recoverable");
1864
1865                for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1866                        if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1867                                       &portsmphr_reg.word0))
1868                                continue;
1869
1870                        smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1871                                                   &portsmphr_reg);
1872                        if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1873                            LPFC_PORT_SEM_UE_RECOVERABLE)
1874                                break;
1875                        /*Sleep for 1Sec, before checking SEMAPHORE */
1876                        msleep(1000);
1877                }
1878
1879                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1880                                "4827 smphr_port_status x%x : Waited %dSec",
1881                                smphr_port_status, i);
1882
1883                /* Recoverable UE, reset the HBA device */
1884                if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1885                    LPFC_PORT_SEM_UE_RECOVERABLE) {
1886                        for (i = 0; i < 20; i++) {
1887                                msleep(1000);
1888                                if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1889                                    &portsmphr_reg.word0) &&
1890                                    (LPFC_POST_STAGE_PORT_READY ==
1891                                     bf_get(lpfc_port_smphr_port_status,
1892                                     &portsmphr_reg))) {
1893                                        rc = lpfc_sli4_port_sta_fn_reset(phba,
1894                                                LPFC_MBX_NO_WAIT, en_rn_msg);
1895                                        if (rc == 0)
1896                                                return;
1897                                        lpfc_printf_log(phba,
1898                                                KERN_ERR, LOG_INIT,
1899                                                "4215 Failed to recover UE");
1900                                        break;
1901                                }
1902                        }
1903                }
1904                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1905                                "7624 Firmware not ready: Failing UE recovery,"
1906                                " waited %dSec", i);
1907                phba->link_state = LPFC_HBA_ERROR;
1908                break;
1909
1910        case LPFC_SLI_INTF_IF_TYPE_2:
1911        case LPFC_SLI_INTF_IF_TYPE_6:
1912                pci_rd_rc1 = lpfc_readl(
1913                                phba->sli4_hba.u.if_type2.STATUSregaddr,
1914                                &portstat_reg.word0);
1915                /* consider PCI bus read error as pci_channel_offline */
1916                if (pci_rd_rc1 == -EIO) {
1917                        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1918                                "3151 PCI bus read access failure: x%x\n",
1919                                readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1920                        lpfc_sli4_offline_eratt(phba);
1921                        return;
1922                }
1923                reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1924                reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1925                if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1926                        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1927                                "2889 Port Overtemperature event, "
1928                                "taking port offline Data: x%x x%x\n",
1929                                reg_err1, reg_err2);
1930
1931                        phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
1932                        temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1933                        temp_event_data.event_code = LPFC_CRIT_TEMP;
1934                        temp_event_data.data = 0xFFFFFFFF;
1935
1936                        shost = lpfc_shost_from_vport(phba->pport);
1937                        fc_host_post_vendor_event(shost, fc_get_event_number(),
1938                                                  sizeof(temp_event_data),
1939                                                  (char *)&temp_event_data,
1940                                                  SCSI_NL_VID_TYPE_PCI
1941                                                  | PCI_VENDOR_ID_EMULEX);
1942
1943                        spin_lock_irq(&phba->hbalock);
1944                        phba->over_temp_state = HBA_OVER_TEMP;
1945                        spin_unlock_irq(&phba->hbalock);
1946                        lpfc_sli4_offline_eratt(phba);
1947                        return;
1948                }
1949                if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1950                    reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1951                        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1952                                        "3143 Port Down: Firmware Update "
1953                                        "Detected\n");
1954                        en_rn_msg = false;
1955                } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1956                         reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1957                        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1958                                        "3144 Port Down: Debug Dump\n");
1959                else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1960                         reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1961                        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1962                                        "3145 Port Down: Provisioning\n");
1963
1964                /* If resets are disabled then leave the HBA alone and return */
1965                if (!phba->cfg_enable_hba_reset)
1966                        return;
1967
1968                /* Check port status register for function reset */
1969                rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1970                                en_rn_msg);
1971                if (rc == 0) {
1972                        /* don't report event on forced debug dump */
1973                        if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1974                            reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1975                                return;
1976                        else
1977                                break;
1978                }
1979                /* fall through for not able to recover */
1980                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1981                                "3152 Unrecoverable error\n");
1982                phba->link_state = LPFC_HBA_ERROR;
1983                break;
1984        case LPFC_SLI_INTF_IF_TYPE_1:
1985        default:
1986                break;
1987        }
1988        lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1989                        "3123 Report dump event to upper layer\n");
1990        /* Send an internal error event to mgmt application */
1991        lpfc_board_errevt_to_mgmt(phba);
1992
1993        event_data = FC_REG_DUMP_EVENT;
1994        shost = lpfc_shost_from_vport(vport);
1995        fc_host_post_vendor_event(shost, fc_get_event_number(),
1996                                  sizeof(event_data), (char *) &event_data,
1997                                  SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1998}
1999
2000/**
2001 * lpfc_handle_eratt - Wrapper func for handling hba error attention
2002 * @phba: pointer to lpfc HBA data structure.
2003 *
2004 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
2005 * routine from the API jump table function pointer from the lpfc_hba struct.
2006 *
2007 * Return codes
2008 *   0 - success.
2009 *   Any other value - error.
2010 **/
2011void
2012lpfc_handle_eratt(struct lpfc_hba *phba)
2013{
2014        (*phba->lpfc_handle_eratt)(phba);
2015}
2016
2017/**
2018 * lpfc_handle_latt - The HBA link event handler
2019 * @phba: pointer to lpfc hba data structure.
2020 *
2021 * This routine is invoked from the worker thread to handle a HBA host
2022 * attention link event. SLI3 only.
2023 **/
2024void
2025lpfc_handle_latt(struct lpfc_hba *phba)
2026{
2027        struct lpfc_vport *vport = phba->pport;
2028        struct lpfc_sli   *psli = &phba->sli;
2029        LPFC_MBOXQ_t *pmb;
2030        volatile uint32_t control;
2031        struct lpfc_dmabuf *mp;
2032        int rc = 0;
2033
2034        pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2035        if (!pmb) {
2036                rc = 1;
2037                goto lpfc_handle_latt_err_exit;
2038        }
2039
2040        mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2041        if (!mp) {
2042                rc = 2;
2043                goto lpfc_handle_latt_free_pmb;
2044        }
2045
2046        mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2047        if (!mp->virt) {
2048                rc = 3;
2049                goto lpfc_handle_latt_free_mp;
2050        }
2051
2052        /* Cleanup any outstanding ELS commands */
2053        lpfc_els_flush_all_cmd(phba);
2054
2055        psli->slistat.link_event++;
2056        lpfc_read_topology(phba, pmb, mp);
2057        pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2058        pmb->vport = vport;
2059        /* Block ELS IOCBs until we have processed this mbox command */
2060        phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2061        rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
2062        if (rc == MBX_NOT_FINISHED) {
2063                rc = 4;
2064                goto lpfc_handle_latt_free_mbuf;
2065        }
2066
2067        /* Clear Link Attention in HA REG */
2068        spin_lock_irq(&phba->hbalock);
2069        writel(HA_LATT, phba->HAregaddr);
2070        readl(phba->HAregaddr); /* flush */
2071        spin_unlock_irq(&phba->hbalock);
2072
2073        return;
2074
2075lpfc_handle_latt_free_mbuf:
2076        phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2077        lpfc_mbuf_free(phba, mp->virt, mp->phys);
2078lpfc_handle_latt_free_mp:
2079        kfree(mp);
2080lpfc_handle_latt_free_pmb:
2081        mempool_free(pmb, phba->mbox_mem_pool);
2082lpfc_handle_latt_err_exit:
2083        /* Enable Link attention interrupts */
2084        spin_lock_irq(&phba->hbalock);
2085        psli->sli_flag |= LPFC_PROCESS_LA;
2086        control = readl(phba->HCregaddr);
2087        control |= HC_LAINT_ENA;
2088        writel(control, phba->HCregaddr);
2089        readl(phba->HCregaddr); /* flush */
2090
2091        /* Clear Link Attention in HA REG */
2092        writel(HA_LATT, phba->HAregaddr);
2093        readl(phba->HAregaddr); /* flush */
2094        spin_unlock_irq(&phba->hbalock);
2095        lpfc_linkdown(phba);
2096        phba->link_state = LPFC_HBA_ERROR;
2097
2098        lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
2099                     "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
2100
2101        return;
2102}
2103
2104/**
2105 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
2106 * @phba: pointer to lpfc hba data structure.
2107 * @vpd: pointer to the vital product data.
2108 * @len: length of the vital product data in bytes.
2109 *
2110 * This routine parses the Vital Product Data (VPD). The VPD is treated as
2111 * an array of characters. In this routine, the ModelName, ProgramType, and
2112 * ModelDesc, etc. fields of the phba data structure will be populated.
2113 *
2114 * Return codes
2115 *   0 - pointer to the VPD passed in is NULL
2116 *   1 - success
2117 **/
2118int
2119lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
2120{
2121        uint8_t lenlo, lenhi;
2122        int Length;
2123        int i, j;
2124        int finished = 0;
2125        int index = 0;
2126
2127        if (!vpd)
2128                return 0;
2129
2130        /* Vital Product */
2131        lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2132                        "0455 Vital Product Data: x%x x%x x%x x%x\n",
2133                        (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2134                        (uint32_t) vpd[3]);
2135        while (!finished && (index < (len - 4))) {
2136                switch (vpd[index]) {
2137                case 0x82:
2138                case 0x91:
2139                        index += 1;
2140                        lenlo = vpd[index];
2141                        index += 1;
2142                        lenhi = vpd[index];
2143                        index += 1;
2144                        i = ((((unsigned short)lenhi) << 8) + lenlo);
2145                        index += i;
2146                        break;
2147                case 0x90:
2148                        index += 1;
2149                        lenlo = vpd[index];
2150                        index += 1;
2151                        lenhi = vpd[index];
2152                        index += 1;
2153                        Length = ((((unsigned short)lenhi) << 8) + lenlo);
2154                        if (Length > len - index)
2155                                Length = len - index;
2156                        while (Length > 0) {
2157                        /* Look for Serial Number */
2158                        if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
2159                                index += 2;
2160                                i = vpd[index];
2161                                index += 1;
2162                                j = 0;
2163                                Length -= (3+i);
2164                                while(i--) {
2165                                        phba->SerialNumber[j++] = vpd[index++];
2166                                        if (j == 31)
2167                                                break;
2168                                }
2169                                phba->SerialNumber[j] = 0;
2170                                continue;
2171                        }
2172                        else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
2173                                phba->vpd_flag |= VPD_MODEL_DESC;
2174                                index += 2;
2175                                i = vpd[index];
2176                                index += 1;
2177                                j = 0;
2178                                Length -= (3+i);
2179                                while(i--) {
2180                                        phba->ModelDesc[j++] = vpd[index++];
2181                                        if (j == 255)
2182                                                break;
2183                                }
2184                                phba->ModelDesc[j] = 0;
2185                                continue;
2186                        }
2187                        else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
2188                                phba->vpd_flag |= VPD_MODEL_NAME;
2189                                index += 2;
2190                                i = vpd[index];
2191                                index += 1;
2192                                j = 0;
2193                                Length -= (3+i);
2194                                while(i--) {
2195                                        phba->ModelName[j++] = vpd[index++];
2196                                        if (j == 79)
2197                                                break;
2198                                }
2199                                phba->ModelName[j] = 0;
2200                                continue;
2201                        }
2202                        else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2203                                phba->vpd_flag |= VPD_PROGRAM_TYPE;
2204                                index += 2;
2205                                i = vpd[index];
2206                                index += 1;
2207                                j = 0;
2208                                Length -= (3+i);
2209                                while(i--) {
2210                                        phba->ProgramType[j++] = vpd[index++];
2211                                        if (j == 255)
2212                                                break;
2213                                }
2214                                phba->ProgramType[j] = 0;
2215                                continue;
2216                        }
2217                        else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2218                                phba->vpd_flag |= VPD_PORT;
2219                                index += 2;
2220                                i = vpd[index];
2221                                index += 1;
2222                                j = 0;
2223                                Length -= (3+i);
2224                                while(i--) {
2225                                        if ((phba->sli_rev == LPFC_SLI_REV4) &&
2226                                            (phba->sli4_hba.pport_name_sta ==
2227                                             LPFC_SLI4_PPNAME_GET)) {
2228                                                j++;
2229                                                index++;
2230                                        } else
2231                                                phba->Port[j++] = vpd[index++];
2232                                        if (j == 19)
2233                                                break;
2234                                }
2235                                if ((phba->sli_rev != LPFC_SLI_REV4) ||
2236                                    (phba->sli4_hba.pport_name_sta ==
2237                                     LPFC_SLI4_PPNAME_NON))
2238                                        phba->Port[j] = 0;
2239                                continue;
2240                        }
2241                        else {
2242                                index += 2;
2243                                i = vpd[index];
2244                                index += 1;
2245                                index += i;
2246                                Length -= (3 + i);
2247                        }
2248                }
2249                finished = 0;
2250                break;
2251                case 0x78:
2252                        finished = 1;
2253                        break;
2254                default:
2255                        index ++;
2256                        break;
2257                }
2258        }
2259
2260        return(1);
2261}
2262
2263/**
2264 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2265 * @phba: pointer to lpfc hba data structure.
2266 * @mdp: pointer to the data structure to hold the derived model name.
2267 * @descp: pointer to the data structure to hold the derived description.
2268 *
2269 * This routine retrieves HBA's description based on its registered PCI device
2270 * ID. The @descp passed into this function points to an array of 256 chars. It
2271 * shall be returned with the model name, maximum speed, and the host bus type.
2272 * The @mdp passed into this function points to an array of 80 chars. When the
2273 * function returns, the @mdp will be filled with the model name.
2274 **/
2275static void
2276lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2277{
2278        lpfc_vpd_t *vp;
2279        uint16_t dev_id = phba->pcidev->device;
2280        int max_speed;
2281        int GE = 0;
2282        int oneConnect = 0; /* default is not a oneConnect */
2283        struct {
2284                char *name;
2285                char *bus;
2286                char *function;
2287        } m = {"<Unknown>", "", ""};
2288
2289        if (mdp && mdp[0] != '\0'
2290                && descp && descp[0] != '\0')
2291                return;
2292
2293        if (phba->lmt & LMT_64Gb)
2294                max_speed = 64;
2295        else if (phba->lmt & LMT_32Gb)
2296                max_speed = 32;
2297        else if (phba->lmt & LMT_16Gb)
2298                max_speed = 16;
2299        else if (phba->lmt & LMT_10Gb)
2300                max_speed = 10;
2301        else if (phba->lmt & LMT_8Gb)
2302                max_speed = 8;
2303        else if (phba->lmt & LMT_4Gb)
2304                max_speed = 4;
2305        else if (phba->lmt & LMT_2Gb)
2306                max_speed = 2;
2307        else if (phba->lmt & LMT_1Gb)
2308                max_speed = 1;
2309        else
2310                max_speed = 0;
2311
2312        vp = &phba->vpd;
2313
2314        switch (dev_id) {
2315        case PCI_DEVICE_ID_FIREFLY:
2316                m = (typeof(m)){"LP6000", "PCI",
2317                                "Obsolete, Unsupported Fibre Channel Adapter"};
2318                break;
2319        case PCI_DEVICE_ID_SUPERFLY:
2320                if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2321                        m = (typeof(m)){"LP7000", "PCI", ""};
2322                else
2323                        m = (typeof(m)){"LP7000E", "PCI", ""};
2324                m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2325                break;
2326        case PCI_DEVICE_ID_DRAGONFLY:
2327                m = (typeof(m)){"LP8000", "PCI",
2328                                "Obsolete, Unsupported Fibre Channel Adapter"};
2329                break;
2330        case PCI_DEVICE_ID_CENTAUR:
2331                if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2332                        m = (typeof(m)){"LP9002", "PCI", ""};
2333                else
2334                        m = (typeof(m)){"LP9000", "PCI", ""};
2335                m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2336                break;
2337        case PCI_DEVICE_ID_RFLY:
2338                m = (typeof(m)){"LP952", "PCI",
2339                                "Obsolete, Unsupported Fibre Channel Adapter"};
2340                break;
2341        case PCI_DEVICE_ID_PEGASUS:
2342                m = (typeof(m)){"LP9802", "PCI-X",
2343                                "Obsolete, Unsupported Fibre Channel Adapter"};
2344                break;
2345        case PCI_DEVICE_ID_THOR:
2346                m = (typeof(m)){"LP10000", "PCI-X",
2347                                "Obsolete, Unsupported Fibre Channel Adapter"};
2348                break;
2349        case PCI_DEVICE_ID_VIPER:
2350                m = (typeof(m)){"LPX1000",  "PCI-X",
2351                                "Obsolete, Unsupported Fibre Channel Adapter"};
2352                break;
2353        case PCI_DEVICE_ID_PFLY:
2354                m = (typeof(m)){"LP982", "PCI-X",
2355                                "Obsolete, Unsupported Fibre Channel Adapter"};
2356                break;
2357        case PCI_DEVICE_ID_TFLY:
2358                m = (typeof(m)){"LP1050", "PCI-X",
2359                                "Obsolete, Unsupported Fibre Channel Adapter"};
2360                break;
2361        case PCI_DEVICE_ID_HELIOS:
2362                m = (typeof(m)){"LP11000", "PCI-X2",
2363                                "Obsolete, Unsupported Fibre Channel Adapter"};
2364                break;
2365        case PCI_DEVICE_ID_HELIOS_SCSP:
2366                m = (typeof(m)){"LP11000-SP", "PCI-X2",
2367                                "Obsolete, Unsupported Fibre Channel Adapter"};
2368                break;
2369        case PCI_DEVICE_ID_HELIOS_DCSP:
2370                m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2371                                "Obsolete, Unsupported Fibre Channel Adapter"};
2372                break;
2373        case PCI_DEVICE_ID_NEPTUNE:
2374                m = (typeof(m)){"LPe1000", "PCIe",
2375                                "Obsolete, Unsupported Fibre Channel Adapter"};
2376                break;
2377        case PCI_DEVICE_ID_NEPTUNE_SCSP:
2378                m = (typeof(m)){"LPe1000-SP", "PCIe",
2379                                "Obsolete, Unsupported Fibre Channel Adapter"};
2380                break;
2381        case PCI_DEVICE_ID_NEPTUNE_DCSP:
2382                m = (typeof(m)){"LPe1002-SP", "PCIe",
2383                                "Obsolete, Unsupported Fibre Channel Adapter"};
2384                break;
2385        case PCI_DEVICE_ID_BMID:
2386                m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2387                break;
2388        case PCI_DEVICE_ID_BSMB:
2389                m = (typeof(m)){"LP111", "PCI-X2",
2390                                "Obsolete, Unsupported Fibre Channel Adapter"};
2391                break;
2392        case PCI_DEVICE_ID_ZEPHYR:
2393                m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2394                break;
2395        case PCI_DEVICE_ID_ZEPHYR_SCSP:
2396                m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2397                break;
2398        case PCI_DEVICE_ID_ZEPHYR_DCSP:
2399                m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2400                GE = 1;
2401                break;
2402        case PCI_DEVICE_ID_ZMID:
2403                m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2404                break;
2405        case PCI_DEVICE_ID_ZSMB:
2406                m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2407                break;
2408        case PCI_DEVICE_ID_LP101:
2409                m = (typeof(m)){"LP101", "PCI-X",
2410                                "Obsolete, Unsupported Fibre Channel Adapter"};
2411                break;
2412        case PCI_DEVICE_ID_LP10000S:
2413                m = (typeof(m)){"LP10000-S", "PCI",
2414                                "Obsolete, Unsupported Fibre Channel Adapter"};
2415                break;
2416        case PCI_DEVICE_ID_LP11000S:
2417                m = (typeof(m)){"LP11000-S", "PCI-X2",
2418                                "Obsolete, Unsupported Fibre Channel Adapter"};
2419                break;
2420        case PCI_DEVICE_ID_LPE11000S:
2421                m = (typeof(m)){"LPe11000-S", "PCIe",
2422                                "Obsolete, Unsupported Fibre Channel Adapter"};
2423                break;
2424        case PCI_DEVICE_ID_SAT:
2425                m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2426                break;
2427        case PCI_DEVICE_ID_SAT_MID:
2428                m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2429                break;
2430        case PCI_DEVICE_ID_SAT_SMB:
2431                m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2432                break;
2433        case PCI_DEVICE_ID_SAT_DCSP:
2434                m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2435                break;
2436        case PCI_DEVICE_ID_SAT_SCSP:
2437                m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2438                break;
2439        case PCI_DEVICE_ID_SAT_S:
2440                m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2441                break;
2442        case PCI_DEVICE_ID_HORNET:
2443                m = (typeof(m)){"LP21000", "PCIe",
2444                                "Obsolete, Unsupported FCoE Adapter"};
2445                GE = 1;
2446                break;
2447        case PCI_DEVICE_ID_PROTEUS_VF:
2448                m = (typeof(m)){"LPev12000", "PCIe IOV",
2449                                "Obsolete, Unsupported Fibre Channel Adapter"};
2450                break;
2451        case PCI_DEVICE_ID_PROTEUS_PF:
2452                m = (typeof(m)){"LPev12000", "PCIe IOV",
2453                                "Obsolete, Unsupported Fibre Channel Adapter"};
2454                break;
2455        case PCI_DEVICE_ID_PROTEUS_S:
2456                m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2457                                "Obsolete, Unsupported Fibre Channel Adapter"};
2458                break;
2459        case PCI_DEVICE_ID_TIGERSHARK:
2460                oneConnect = 1;
2461                m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2462                break;
2463        case PCI_DEVICE_ID_TOMCAT:
2464                oneConnect = 1;
2465                m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2466                break;
2467        case PCI_DEVICE_ID_FALCON:
2468                m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2469                                "EmulexSecure Fibre"};
2470                break;
2471        case PCI_DEVICE_ID_BALIUS:
2472                m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2473                                "Obsolete, Unsupported Fibre Channel Adapter"};
2474                break;
2475        case PCI_DEVICE_ID_LANCER_FC:
2476                m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2477                break;
2478        case PCI_DEVICE_ID_LANCER_FC_VF:
2479                m = (typeof(m)){"LPe16000", "PCIe",
2480                                "Obsolete, Unsupported Fibre Channel Adapter"};
2481                break;
2482        case PCI_DEVICE_ID_LANCER_FCOE:
2483                oneConnect = 1;
2484                m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2485                break;
2486        case PCI_DEVICE_ID_LANCER_FCOE_VF:
2487                oneConnect = 1;
2488                m = (typeof(m)){"OCe15100", "PCIe",
2489                                "Obsolete, Unsupported FCoE"};
2490                break;
2491        case PCI_DEVICE_ID_LANCER_G6_FC:
2492                m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2493                break;
2494        case PCI_DEVICE_ID_LANCER_G7_FC:
2495                m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"};
2496                break;
2497        case PCI_DEVICE_ID_SKYHAWK:
2498        case PCI_DEVICE_ID_SKYHAWK_VF:
2499                oneConnect = 1;
2500                m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2501                break;
2502        default:
2503                m = (typeof(m)){"Unknown", "", ""};
2504                break;
2505        }
2506
2507        if (mdp && mdp[0] == '\0')
2508                snprintf(mdp, 79,"%s", m.name);
2509        /*
2510         * oneConnect hba requires special processing, they are all initiators
2511         * and we put the port number on the end
2512         */
2513        if (descp && descp[0] == '\0') {
2514                if (oneConnect)
2515                        snprintf(descp, 255,
2516                                "Emulex OneConnect %s, %s Initiator %s",
2517                                m.name, m.function,
2518                                phba->Port);
2519                else if (max_speed == 0)
2520                        snprintf(descp, 255,
2521                                "Emulex %s %s %s",
2522                                m.name, m.bus, m.function);
2523                else
2524                        snprintf(descp, 255,
2525                                "Emulex %s %d%s %s %s",
2526                                m.name, max_speed, (GE) ? "GE" : "Gb",
2527                                m.bus, m.function);
2528        }
2529}
2530
2531/**
2532 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2533 * @phba: pointer to lpfc hba data structure.
2534 * @pring: pointer to a IOCB ring.
2535 * @cnt: the number of IOCBs to be posted to the IOCB ring.
2536 *
2537 * This routine posts a given number of IOCBs with the associated DMA buffer
2538 * descriptors specified by the cnt argument to the given IOCB ring.
2539 *
2540 * Return codes
2541 *   The number of IOCBs NOT able to be posted to the IOCB ring.
2542 **/
2543int
2544lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2545{
2546        IOCB_t *icmd;
2547        struct lpfc_iocbq *iocb;
2548        struct lpfc_dmabuf *mp1, *mp2;
2549
2550        cnt += pring->missbufcnt;
2551
2552        /* While there are buffers to post */
2553        while (cnt > 0) {
2554                /* Allocate buffer for  command iocb */
2555                iocb = lpfc_sli_get_iocbq(phba);
2556                if (iocb == NULL) {
2557                        pring->missbufcnt = cnt;
2558                        return cnt;
2559                }
2560                icmd = &iocb->iocb;
2561
2562                /* 2 buffers can be posted per command */
2563                /* Allocate buffer to post */
2564                mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2565                if (mp1)
2566                    mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2567                if (!mp1 || !mp1->virt) {
2568                        kfree(mp1);
2569                        lpfc_sli_release_iocbq(phba, iocb);
2570                        pring->missbufcnt = cnt;
2571                        return cnt;
2572                }
2573
2574                INIT_LIST_HEAD(&mp1->list);
2575                /* Allocate buffer to post */
2576                if (cnt > 1) {
2577                        mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2578                        if (mp2)
2579                                mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2580                                                            &mp2->phys);
2581                        if (!mp2 || !mp2->virt) {
2582                                kfree(mp2);
2583                                lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2584                                kfree(mp1);
2585                                lpfc_sli_release_iocbq(phba, iocb);
2586                                pring->missbufcnt = cnt;
2587                                return cnt;
2588                        }
2589
2590                        INIT_LIST_HEAD(&mp2->list);
2591                } else {
2592                        mp2 = NULL;
2593                }
2594
2595                icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2596                icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2597                icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2598                icmd->ulpBdeCount = 1;
2599                cnt--;
2600                if (mp2) {
2601                        icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2602                        icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2603                        icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2604                        cnt--;
2605                        icmd->ulpBdeCount = 2;
2606                }
2607
2608                icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2609                icmd->ulpLe = 1;
2610
2611                if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2612                    IOCB_ERROR) {
2613                        lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2614                        kfree(mp1);
2615                        cnt++;
2616                        if (mp2) {
2617                                lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2618                                kfree(mp2);
2619                                cnt++;
2620                        }
2621                        lpfc_sli_release_iocbq(phba, iocb);
2622                        pring->missbufcnt = cnt;
2623                        return cnt;
2624                }
2625                lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2626                if (mp2)
2627                        lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2628        }
2629        pring->missbufcnt = 0;
2630        return 0;
2631}
2632
2633/**
2634 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2635 * @phba: pointer to lpfc hba data structure.
2636 *
2637 * This routine posts initial receive IOCB buffers to the ELS ring. The
2638 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2639 * set to 64 IOCBs. SLI3 only.
2640 *
2641 * Return codes
2642 *   0 - success (currently always success)
2643 **/
2644static int
2645lpfc_post_rcv_buf(struct lpfc_hba *phba)
2646{
2647        struct lpfc_sli *psli = &phba->sli;
2648
2649        /* Ring 0, ELS / CT buffers */
2650        lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2651        /* Ring 2 - FCP no buffers needed */
2652
2653        return 0;
2654}
2655
2656#define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2657
2658/**
2659 * lpfc_sha_init - Set up initial array of hash table entries
2660 * @HashResultPointer: pointer to an array as hash table.
2661 *
2662 * This routine sets up the initial values to the array of hash table entries
2663 * for the LC HBAs.
2664 **/
2665static void
2666lpfc_sha_init(uint32_t * HashResultPointer)
2667{
2668        HashResultPointer[0] = 0x67452301;
2669        HashResultPointer[1] = 0xEFCDAB89;
2670        HashResultPointer[2] = 0x98BADCFE;
2671        HashResultPointer[3] = 0x10325476;
2672        HashResultPointer[4] = 0xC3D2E1F0;
2673}
2674
2675/**
2676 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2677 * @HashResultPointer: pointer to an initial/result hash table.
2678 * @HashWorkingPointer: pointer to an working hash table.
2679 *
2680 * This routine iterates an initial hash table pointed by @HashResultPointer
2681 * with the values from the working hash table pointeed by @HashWorkingPointer.
2682 * The results are putting back to the initial hash table, returned through
2683 * the @HashResultPointer as the result hash table.
2684 **/
2685static void
2686lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2687{
2688        int t;
2689        uint32_t TEMP;
2690        uint32_t A, B, C, D, E;
2691        t = 16;
2692        do {
2693                HashWorkingPointer[t] =
2694                    S(1,
2695                      HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2696                                                                     8] ^
2697                      HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2698        } while (++t <= 79);
2699        t = 0;
2700        A = HashResultPointer[0];
2701        B = HashResultPointer[1];
2702        C = HashResultPointer[2];
2703        D = HashResultPointer[3];
2704        E = HashResultPointer[4];
2705
2706        do {
2707                if (t < 20) {
2708                        TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2709                } else if (t < 40) {
2710                        TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2711                } else if (t < 60) {
2712                        TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2713                } else {
2714                        TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2715                }
2716                TEMP += S(5, A) + E + HashWorkingPointer[t];
2717                E = D;
2718                D = C;
2719                C = S(30, B);
2720                B = A;
2721                A = TEMP;
2722        } while (++t <= 79);
2723
2724        HashResultPointer[0] += A;
2725        HashResultPointer[1] += B;
2726        HashResultPointer[2] += C;
2727        HashResultPointer[3] += D;
2728        HashResultPointer[4] += E;
2729
2730}
2731
2732/**
2733 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2734 * @RandomChallenge: pointer to the entry of host challenge random number array.
2735 * @HashWorking: pointer to the entry of the working hash array.
2736 *
2737 * This routine calculates the working hash array referred by @HashWorking
2738 * from the challenge random numbers associated with the host, referred by
2739 * @RandomChallenge. The result is put into the entry of the working hash
2740 * array and returned by reference through @HashWorking.
2741 **/
2742static void
2743lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2744{
2745        *HashWorking = (*RandomChallenge ^ *HashWorking);
2746}
2747
2748/**
2749 * lpfc_hba_init - Perform special handling for LC HBA initialization
2750 * @phba: pointer to lpfc hba data structure.
2751 * @hbainit: pointer to an array of unsigned 32-bit integers.
2752 *
2753 * This routine performs the special handling for LC HBA initialization.
2754 **/
2755void
2756lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2757{
2758        int t;
2759        uint32_t *HashWorking;
2760        uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2761
2762        HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2763        if (!HashWorking)
2764                return;
2765
2766        HashWorking[0] = HashWorking[78] = *pwwnn++;
2767        HashWorking[1] = HashWorking[79] = *pwwnn;
2768
2769        for (t = 0; t < 7; t++)
2770                lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2771
2772        lpfc_sha_init(hbainit);
2773        lpfc_sha_iterate(hbainit, HashWorking);
2774        kfree(HashWorking);
2775}
2776
2777/**
2778 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2779 * @vport: pointer to a virtual N_Port data structure.
2780 *
2781 * This routine performs the necessary cleanups before deleting the @vport.
2782 * It invokes the discovery state machine to perform necessary state
2783 * transitions and to release the ndlps associated with the @vport. Note,
2784 * the physical port is treated as @vport 0.
2785 **/
2786void
2787lpfc_cleanup(struct lpfc_vport *vport)
2788{
2789        struct lpfc_hba   *phba = vport->phba;
2790        struct lpfc_nodelist *ndlp, *next_ndlp;
2791        int i = 0;
2792
2793        if (phba->link_state > LPFC_LINK_DOWN)
2794                lpfc_port_link_failure(vport);
2795
2796        list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2797                if (!NLP_CHK_NODE_ACT(ndlp)) {
2798                        ndlp = lpfc_enable_node(vport, ndlp,
2799                                                NLP_STE_UNUSED_NODE);
2800                        if (!ndlp)
2801                                continue;
2802                        spin_lock_irq(&phba->ndlp_lock);
2803                        NLP_SET_FREE_REQ(ndlp);
2804                        spin_unlock_irq(&phba->ndlp_lock);
2805                        /* Trigger the release of the ndlp memory */
2806                        lpfc_nlp_put(ndlp);
2807                        continue;
2808                }
2809                spin_lock_irq(&phba->ndlp_lock);
2810                if (NLP_CHK_FREE_REQ(ndlp)) {
2811                        /* The ndlp should not be in memory free mode already */
2812                        spin_unlock_irq(&phba->ndlp_lock);
2813                        continue;
2814                } else
2815                        /* Indicate request for freeing ndlp memory */
2816                        NLP_SET_FREE_REQ(ndlp);
2817                spin_unlock_irq(&phba->ndlp_lock);
2818
2819                if (vport->port_type != LPFC_PHYSICAL_PORT &&
2820                    ndlp->nlp_DID == Fabric_DID) {
2821                        /* Just free up ndlp with Fabric_DID for vports */
2822                        lpfc_nlp_put(ndlp);
2823                        continue;
2824                }
2825
2826                /* take care of nodes in unused state before the state
2827                 * machine taking action.
2828                 */
2829                if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2830                        lpfc_nlp_put(ndlp);
2831                        continue;
2832                }
2833
2834                if (ndlp->nlp_type & NLP_FABRIC)
2835                        lpfc_disc_state_machine(vport, ndlp, NULL,
2836                                        NLP_EVT_DEVICE_RECOVERY);
2837
2838                lpfc_disc_state_machine(vport, ndlp, NULL,
2839                                             NLP_EVT_DEVICE_RM);
2840        }
2841
2842        /* At this point, ALL ndlp's should be gone
2843         * because of the previous NLP_EVT_DEVICE_RM.
2844         * Lets wait for this to happen, if needed.
2845         */
2846        while (!list_empty(&vport->fc_nodes)) {
2847                if (i++ > 3000) {
2848                        lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2849                                "0233 Nodelist not empty\n");
2850                        list_for_each_entry_safe(ndlp, next_ndlp,
2851                                                &vport->fc_nodes, nlp_listp) {
2852                                lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2853                                                LOG_NODE,
2854                                                "0282 did:x%x ndlp:x%px "
2855                                                "usgmap:x%x refcnt:%d\n",
2856                                                ndlp->nlp_DID, (void *)ndlp,
2857                                                ndlp->nlp_usg_map,
2858                                                kref_read(&ndlp->kref));
2859                        }
2860                        break;
2861                }
2862
2863                /* Wait for any activity on ndlps to settle */
2864                msleep(10);
2865        }
2866        lpfc_cleanup_vports_rrqs(vport, NULL);
2867}
2868
2869/**
2870 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2871 * @vport: pointer to a virtual N_Port data structure.
2872 *
2873 * This routine stops all the timers associated with a @vport. This function
2874 * is invoked before disabling or deleting a @vport. Note that the physical
2875 * port is treated as @vport 0.
2876 **/
2877void
2878lpfc_stop_vport_timers(struct lpfc_vport *vport)
2879{
2880        del_timer_sync(&vport->els_tmofunc);
2881        del_timer_sync(&vport->delayed_disc_tmo);
2882        lpfc_can_disctmo(vport);
2883        return;
2884}
2885
2886/**
2887 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2888 * @phba: pointer to lpfc hba data structure.
2889 *
2890 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2891 * caller of this routine should already hold the host lock.
2892 **/
2893void
2894__lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2895{
2896        /* Clear pending FCF rediscovery wait flag */
2897        phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2898
2899        /* Now, try to stop the timer */
2900        del_timer(&phba->fcf.redisc_wait);
2901}
2902
2903/**
2904 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2905 * @phba: pointer to lpfc hba data structure.
2906 *
2907 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2908 * checks whether the FCF rediscovery wait timer is pending with the host
2909 * lock held before proceeding with disabling the timer and clearing the
2910 * wait timer pendig flag.
2911 **/
2912void
2913lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2914{
2915        spin_lock_irq(&phba->hbalock);
2916        if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2917                /* FCF rediscovery timer already fired or stopped */
2918                spin_unlock_irq(&phba->hbalock);
2919                return;
2920        }
2921        __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2922        /* Clear failover in progress flags */
2923        phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2924        spin_unlock_irq(&phba->hbalock);
2925}
2926
2927/**
2928 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2929 * @phba: pointer to lpfc hba data structure.
2930 *
2931 * This routine stops all the timers associated with a HBA. This function is
2932 * invoked before either putting a HBA offline or unloading the driver.
2933 **/
2934void
2935lpfc_stop_hba_timers(struct lpfc_hba *phba)
2936{
2937        if (phba->pport)
2938                lpfc_stop_vport_timers(phba->pport);
2939        cancel_delayed_work_sync(&phba->eq_delay_work);
2940        del_timer_sync(&phba->sli.mbox_tmo);
2941        del_timer_sync(&phba->fabric_block_timer);
2942        del_timer_sync(&phba->eratt_poll);
2943        del_timer_sync(&phba->hb_tmofunc);
2944        if (phba->sli_rev == LPFC_SLI_REV4) {
2945                del_timer_sync(&phba->rrq_tmr);
2946                phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2947        }
2948        phba->hb_outstanding = 0;
2949
2950        switch (phba->pci_dev_grp) {
2951        case LPFC_PCI_DEV_LP:
2952                /* Stop any LightPulse device specific driver timers */
2953                del_timer_sync(&phba->fcp_poll_timer);
2954                break;
2955        case LPFC_PCI_DEV_OC:
2956                /* Stop any OneConnect device specific driver timers */
2957                lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2958                break;
2959        default:
2960                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2961                                "0297 Invalid device group (x%x)\n",
2962                                phba->pci_dev_grp);
2963                break;
2964        }
2965        return;
2966}
2967
2968/**
2969 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2970 * @phba: pointer to lpfc hba data structure.
2971 *
2972 * This routine marks a HBA's management interface as blocked. Once the HBA's
2973 * management interface is marked as blocked, all the user space access to
2974 * the HBA, whether they are from sysfs interface or libdfc interface will
2975 * all be blocked. The HBA is set to block the management interface when the
2976 * driver prepares the HBA interface for online or offline.
2977 **/
2978static void
2979lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2980{
2981        unsigned long iflag;
2982        uint8_t actcmd = MBX_HEARTBEAT;
2983        unsigned long timeout;
2984
2985        spin_lock_irqsave(&phba->hbalock, iflag);
2986        phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2987        spin_unlock_irqrestore(&phba->hbalock, iflag);
2988        if (mbx_action == LPFC_MBX_NO_WAIT)
2989                return;
2990        timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2991        spin_lock_irqsave(&phba->hbalock, iflag);
2992        if (phba->sli.mbox_active) {
2993                actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2994                /* Determine how long we might wait for the active mailbox
2995                 * command to be gracefully completed by firmware.
2996                 */
2997                timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2998                                phba->sli.mbox_active) * 1000) + jiffies;
2999        }
3000        spin_unlock_irqrestore(&phba->hbalock, iflag);
3001
3002        /* Wait for the outstnading mailbox command to complete */
3003        while (phba->sli.mbox_active) {
3004                /* Check active mailbox complete status every 2ms */
3005                msleep(2);
3006                if (time_after(jiffies, timeout)) {
3007                        lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3008                                "2813 Mgmt IO is Blocked %x "
3009                                "- mbox cmd %x still active\n",
3010                                phba->sli.sli_flag, actcmd);
3011                        break;
3012                }
3013        }
3014}
3015
3016/**
3017 * lpfc_sli4_node_prep - Assign RPIs for active nodes.
3018 * @phba: pointer to lpfc hba data structure.
3019 *
3020 * Allocate RPIs for all active remote nodes. This is needed whenever
3021 * an SLI4 adapter is reset and the driver is not unloading. Its purpose
3022 * is to fixup the temporary rpi assignments.
3023 **/
3024void
3025lpfc_sli4_node_prep(struct lpfc_hba *phba)
3026{
3027        struct lpfc_nodelist  *ndlp, *next_ndlp;
3028        struct lpfc_vport **vports;
3029        int i, rpi;
3030        unsigned long flags;
3031
3032        if (phba->sli_rev != LPFC_SLI_REV4)
3033                return;
3034
3035        vports = lpfc_create_vport_work_array(phba);
3036        if (vports == NULL)
3037                return;
3038
3039        for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3040                if (vports[i]->load_flag & FC_UNLOADING)
3041                        continue;
3042
3043                list_for_each_entry_safe(ndlp, next_ndlp,
3044                                         &vports[i]->fc_nodes,
3045                                         nlp_listp) {
3046                        if (!NLP_CHK_NODE_ACT(ndlp))
3047                                continue;
3048                        rpi = lpfc_sli4_alloc_rpi(phba);
3049                        if (rpi == LPFC_RPI_ALLOC_ERROR) {
3050                                spin_lock_irqsave(&phba->ndlp_lock, flags);
3051                                NLP_CLR_NODE_ACT(ndlp);
3052                                spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3053                                continue;
3054                        }
3055                        ndlp->nlp_rpi = rpi;
3056                        lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
3057                                         "0009 rpi:%x DID:%x "
3058                                         "flg:%x map:%x x%px\n", ndlp->nlp_rpi,
3059                                         ndlp->nlp_DID, ndlp->nlp_flag,
3060                                         ndlp->nlp_usg_map, ndlp);
3061                }
3062        }
3063        lpfc_destroy_vport_work_array(phba, vports);
3064}
3065
3066/**
3067 * lpfc_create_expedite_pool - create expedite pool
3068 * @phba: pointer to lpfc hba data structure.
3069 *
3070 * This routine moves a batch of XRIs from lpfc_io_buf_list_put of HWQ 0
3071 * to expedite pool. Mark them as expedite.
3072 **/
3073static void lpfc_create_expedite_pool(struct lpfc_hba *phba)
3074{
3075        struct lpfc_sli4_hdw_queue *qp;
3076        struct lpfc_io_buf *lpfc_ncmd;
3077        struct lpfc_io_buf *lpfc_ncmd_next;
3078        struct lpfc_epd_pool *epd_pool;
3079        unsigned long iflag;
3080
3081        epd_pool = &phba->epd_pool;
3082        qp = &phba->sli4_hba.hdwq[0];
3083
3084        spin_lock_init(&epd_pool->lock);
3085        spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3086        spin_lock(&epd_pool->lock);
3087        INIT_LIST_HEAD(&epd_pool->list);
3088        list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3089                                 &qp->lpfc_io_buf_list_put, list) {
3090                list_move_tail(&lpfc_ncmd->list, &epd_pool->list);
3091                lpfc_ncmd->expedite = true;
3092                qp->put_io_bufs--;
3093                epd_pool->count++;
3094                if (epd_pool->count >= XRI_BATCH)
3095                        break;
3096        }
3097        spin_unlock(&epd_pool->lock);
3098        spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3099}
3100
3101/**
3102 * lpfc_destroy_expedite_pool - destroy expedite pool
3103 * @phba: pointer to lpfc hba data structure.
3104 *
3105 * This routine returns XRIs from expedite pool to lpfc_io_buf_list_put
3106 * of HWQ 0. Clear the mark.
3107 **/
3108static void lpfc_destroy_expedite_pool(struct lpfc_hba *phba)
3109{
3110        struct lpfc_sli4_hdw_queue *qp;
3111        struct lpfc_io_buf *lpfc_ncmd;
3112        struct lpfc_io_buf *lpfc_ncmd_next;
3113        struct lpfc_epd_pool *epd_pool;
3114        unsigned long iflag;
3115
3116        epd_pool = &phba->epd_pool;
3117        qp = &phba->sli4_hba.hdwq[0];
3118
3119        spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3120        spin_lock(&epd_pool->lock);
3121        list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3122                                 &epd_pool->list, list) {
3123                list_move_tail(&lpfc_ncmd->list,
3124                               &qp->lpfc_io_buf_list_put);
3125                lpfc_ncmd->flags = false;
3126                qp->put_io_bufs++;
3127                epd_pool->count--;
3128        }
3129        spin_unlock(&epd_pool->lock);
3130        spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3131}
3132
3133/**
3134 * lpfc_create_multixri_pools - create multi-XRI pools
3135 * @phba: pointer to lpfc hba data structure.
3136 *
3137 * This routine initialize public, private per HWQ. Then, move XRIs from
3138 * lpfc_io_buf_list_put to public pool. High and low watermark are also
3139 * Initialized.
3140 **/
3141void lpfc_create_multixri_pools(struct lpfc_hba *phba)
3142{
3143        u32 i, j;
3144        u32 hwq_count;
3145        u32 count_per_hwq;
3146        struct lpfc_io_buf *lpfc_ncmd;
3147        struct lpfc_io_buf *lpfc_ncmd_next;
3148        unsigned long iflag;
3149        struct lpfc_sli4_hdw_queue *qp;
3150        struct lpfc_multixri_pool *multixri_pool;
3151        struct lpfc_pbl_pool *pbl_pool;
3152        struct lpfc_pvt_pool *pvt_pool;
3153
3154        lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3155                        "1234 num_hdw_queue=%d num_present_cpu=%d common_xri_cnt=%d\n",
3156                        phba->cfg_hdw_queue, phba->sli4_hba.num_present_cpu,
3157                        phba->sli4_hba.io_xri_cnt);
3158
3159        if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3160                lpfc_create_expedite_pool(phba);
3161
3162        hwq_count = phba->cfg_hdw_queue;
3163        count_per_hwq = phba->sli4_hba.io_xri_cnt / hwq_count;
3164
3165        for (i = 0; i < hwq_count; i++) {
3166                multixri_pool = kzalloc(sizeof(*multixri_pool), GFP_KERNEL);
3167
3168                if (!multixri_pool) {
3169                        lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3170                                        "1238 Failed to allocate memory for "
3171                                        "multixri_pool\n");
3172
3173                        if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3174                                lpfc_destroy_expedite_pool(phba);
3175
3176                        j = 0;
3177                        while (j < i) {
3178                                qp = &phba->sli4_hba.hdwq[j];
3179                                kfree(qp->p_multixri_pool);
3180                                j++;
3181                        }
3182                        phba->cfg_xri_rebalancing = 0;
3183                        return;
3184                }
3185
3186                qp = &phba->sli4_hba.hdwq[i];
3187                qp->p_multixri_pool = multixri_pool;
3188
3189                multixri_pool->xri_limit = count_per_hwq;
3190                multixri_pool->rrb_next_hwqid = i;
3191
3192                /* Deal with public free xri pool */
3193                pbl_pool = &multixri_pool->pbl_pool;
3194                spin_lock_init(&pbl_pool->lock);
3195                spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3196                spin_lock(&pbl_pool->lock);
3197                INIT_LIST_HEAD(&pbl_pool->list);
3198                list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3199                                         &qp->lpfc_io_buf_list_put, list) {
3200                        list_move_tail(&lpfc_ncmd->list, &pbl_pool->list);
3201                        qp->put_io_bufs--;
3202                        pbl_pool->count++;
3203                }
3204                lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3205                                "1235 Moved %d buffers from PUT list over to pbl_pool[%d]\n",
3206                                pbl_pool->count, i);
3207                spin_unlock(&pbl_pool->lock);
3208                spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3209
3210                /* Deal with private free xri pool */
3211                pvt_pool = &multixri_pool->pvt_pool;
3212                pvt_pool->high_watermark = multixri_pool->xri_limit / 2;
3213                pvt_pool->low_watermark = XRI_BATCH;
3214                spin_lock_init(&pvt_pool->lock);
3215                spin_lock_irqsave(&pvt_pool->lock, iflag);
3216                INIT_LIST_HEAD(&pvt_pool->list);
3217                pvt_pool->count = 0;
3218                spin_unlock_irqrestore(&pvt_pool->lock, iflag);
3219        }
3220}
3221
3222/**
3223 * lpfc_destroy_multixri_pools - destroy multi-XRI pools
3224 * @phba: pointer to lpfc hba data structure.
3225 *
3226 * This routine returns XRIs from public/private to lpfc_io_buf_list_put.
3227 **/
3228static void lpfc_destroy_multixri_pools(struct lpfc_hba *phba)
3229{
3230        u32 i;
3231        u32 hwq_count;
3232        struct lpfc_io_buf *lpfc_ncmd;
3233        struct lpfc_io_buf *lpfc_ncmd_next;
3234        unsigned long iflag;
3235        struct lpfc_sli4_hdw_queue *qp;
3236        struct lpfc_multixri_pool *multixri_pool;
3237        struct lpfc_pbl_pool *pbl_pool;
3238        struct lpfc_pvt_pool *pvt_pool;
3239
3240        if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3241                lpfc_destroy_expedite_pool(phba);
3242
3243        if (!(phba->pport->load_flag & FC_UNLOADING))
3244                lpfc_sli_flush_io_rings(phba);
3245
3246        hwq_count = phba->cfg_hdw_queue;
3247
3248        for (i = 0; i < hwq_count; i++) {
3249                qp = &phba->sli4_hba.hdwq[i];
3250                multixri_pool = qp->p_multixri_pool;
3251                if (!multixri_pool)
3252                        continue;
3253
3254                qp->p_multixri_pool = NULL;
3255
3256                spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3257
3258                /* Deal with public free xri pool */
3259                pbl_pool = &multixri_pool->pbl_pool;
3260                spin_lock(&pbl_pool->lock);
3261
3262                lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3263                                "1236 Moving %d buffers from pbl_pool[%d] TO PUT list\n",
3264                                pbl_pool->count, i);
3265
3266                list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3267                                         &pbl_pool->list, list) {
3268                        list_move_tail(&lpfc_ncmd->list,
3269                                       &qp->lpfc_io_buf_list_put);
3270                        qp->put_io_bufs++;
3271                        pbl_pool->count--;
3272                }
3273
3274                INIT_LIST_HEAD(&pbl_pool->list);
3275                pbl_pool->count = 0;
3276
3277                spin_unlock(&pbl_pool->lock);
3278
3279                /* Deal with private free xri pool */
3280                pvt_pool = &multixri_pool->pvt_pool;
3281                spin_lock(&pvt_pool->lock);
3282
3283                lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3284                                "1237 Moving %d buffers from pvt_pool[%d] TO PUT list\n",
3285                                pvt_pool->count, i);
3286
3287                list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3288                                         &pvt_pool->list, list) {
3289                        list_move_tail(&lpfc_ncmd->list,
3290                                       &qp->lpfc_io_buf_list_put);
3291                        qp->put_io_bufs++;
3292                        pvt_pool->count--;
3293                }
3294
3295                INIT_LIST_HEAD(&pvt_pool->list);
3296                pvt_pool->count = 0;
3297
3298                spin_unlock(&pvt_pool->lock);
3299                spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3300
3301                kfree(multixri_pool);
3302        }
3303}
3304
3305/**
3306 * lpfc_online - Initialize and bring a HBA online
3307 * @phba: pointer to lpfc hba data structure.
3308 *
3309 * This routine initializes the HBA and brings a HBA online. During this
3310 * process, the management interface is blocked to prevent user space access
3311 * to the HBA interfering with the driver initialization.
3312 *
3313 * Return codes
3314 *   0 - successful
3315 *   1 - failed
3316 **/
3317int
3318lpfc_online(struct lpfc_hba *phba)
3319{
3320        struct lpfc_vport *vport;
3321        struct lpfc_vport **vports;
3322        int i, error = 0;
3323        bool vpis_cleared = false;
3324
3325        if (!phba)
3326                return 0;
3327        vport = phba->pport;
3328
3329        if (!(vport->fc_flag & FC_OFFLINE_MODE))
3330                return 0;
3331
3332        lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3333                        "0458 Bring Adapter online\n");
3334
3335        lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
3336
3337        if (phba->sli_rev == LPFC_SLI_REV4) {
3338                if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
3339                        lpfc_unblock_mgmt_io(phba);
3340                        return 1;
3341                }
3342                spin_lock_irq(&phba->hbalock);
3343                if (!phba->sli4_hba.max_cfg_param.vpi_used)
3344                        vpis_cleared = true;
3345                spin_unlock_irq(&phba->hbalock);
3346
3347                /* Reestablish the local initiator port.
3348                 * The offline process destroyed the previous lport.
3349                 */
3350                if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
3351                                !phba->nvmet_support) {
3352                        error = lpfc_nvme_create_localport(phba->pport);
3353                        if (error)
3354                                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3355                                        "6132 NVME restore reg failed "
3356                                        "on nvmei error x%x\n", error);
3357                }
3358        } else {
3359                lpfc_sli_queue_init(phba);
3360                if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
3361                        lpfc_unblock_mgmt_io(phba);
3362                        return 1;
3363                }
3364        }
3365
3366        vports = lpfc_create_vport_work_array(phba);
3367        if (vports != NULL) {
3368                for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3369                        struct Scsi_Host *shost;
3370                        shost = lpfc_shost_from_vport(vports[i]);
3371                        spin_lock_irq(shost->host_lock);
3372                        vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
3373                        if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3374                                vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3375                        if (phba->sli_rev == LPFC_SLI_REV4) {
3376                                vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3377                                if ((vpis_cleared) &&
3378                                    (vports[i]->port_type !=
3379                                        LPFC_PHYSICAL_PORT))
3380                                        vports[i]->vpi = 0;
3381                        }
3382                        spin_unlock_irq(shost->host_lock);
3383                }
3384        }
3385        lpfc_destroy_vport_work_array(phba, vports);
3386
3387        if (phba->cfg_xri_rebalancing)
3388                lpfc_create_multixri_pools(phba);
3389
3390        lpfc_unblock_mgmt_io(phba);
3391        return 0;
3392}
3393
3394/**
3395 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3396 * @phba: pointer to lpfc hba data structure.
3397 *
3398 * This routine marks a HBA's management interface as not blocked. Once the
3399 * HBA's management interface is marked as not blocked, all the user space
3400 * access to the HBA, whether they are from sysfs interface or libdfc
3401 * interface will be allowed. The HBA is set to block the management interface
3402 * when the driver prepares the HBA interface for online or offline and then
3403 * set to unblock the management interface afterwards.
3404 **/
3405void
3406lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3407{
3408        unsigned long iflag;
3409
3410        spin_lock_irqsave(&phba->hbalock, iflag);
3411        phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3412        spin_unlock_irqrestore(&phba->hbalock, iflag);
3413}
3414
3415/**
3416 * lpfc_offline_prep - Prepare a HBA to be brought offline
3417 * @phba: pointer to lpfc hba data structure.
3418 *
3419 * This routine is invoked to prepare a HBA to be brought offline. It performs
3420 * unregistration login to all the nodes on all vports and flushes the mailbox
3421 * queue to make it ready to be brought offline.
3422 **/
3423void
3424lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3425{
3426        struct lpfc_vport *vport = phba->pport;
3427        struct lpfc_nodelist  *ndlp, *next_ndlp;
3428        struct lpfc_vport **vports;
3429        struct Scsi_Host *shost;
3430        int i;
3431
3432        if (vport->fc_flag & FC_OFFLINE_MODE)
3433                return;
3434
3435        lpfc_block_mgmt_io(phba, mbx_action);
3436
3437        lpfc_linkdown(phba);
3438
3439        /* Issue an unreg_login to all nodes on all vports */
3440        vports = lpfc_create_vport_work_array(phba);
3441        if (vports != NULL) {
3442                for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3443                        if (vports[i]->load_flag & FC_UNLOADING)
3444                                continue;
3445                        shost = lpfc_shost_from_vport(vports[i]);
3446                        spin_lock_irq(shost->host_lock);
3447                        vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3448                        vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3449                        vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3450                        spin_unlock_irq(shost->host_lock);
3451
3452                        shost = lpfc_shost_from_vport(vports[i]);
3453                        list_for_each_entry_safe(ndlp, next_ndlp,
3454                                                 &vports[i]->fc_nodes,
3455                                                 nlp_listp) {
3456                                if (!NLP_CHK_NODE_ACT(ndlp))
3457                                        continue;
3458                                if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
3459                                        continue;
3460                                if (ndlp->nlp_type & NLP_FABRIC) {
3461                                        lpfc_disc_state_machine(vports[i], ndlp,
3462                                                NULL, NLP_EVT_DEVICE_RECOVERY);
3463                                        lpfc_disc_state_machine(vports[i], ndlp,
3464                                                NULL, NLP_EVT_DEVICE_RM);
3465                                }
3466                                spin_lock_irq(shost->host_lock);
3467                                ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3468                                spin_unlock_irq(shost->host_lock);
3469                                /*
3470                                 * Whenever an SLI4 port goes offline, free the
3471                                 * RPI. Get a new RPI when the adapter port
3472                                 * comes back online.
3473                                 */
3474                                if (phba->sli_rev == LPFC_SLI_REV4) {
3475                                        lpfc_printf_vlog(ndlp->vport,
3476                                                         KERN_INFO, LOG_NODE,
3477                                                         "0011 lpfc_offline: "
3478                                                         "ndlp:x%px did %x "
3479                                                         "usgmap:x%x rpi:%x\n",
3480                                                         ndlp, ndlp->nlp_DID,
3481                                                         ndlp->nlp_usg_map,
3482                                                         ndlp->nlp_rpi);
3483
3484                                        lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3485                                }
3486                                lpfc_unreg_rpi(vports[i], ndlp);
3487                        }
3488                }
3489        }
3490        lpfc_destroy_vport_work_array(phba, vports);
3491
3492        lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3493
3494        if (phba->wq)
3495                flush_workqueue(phba->wq);
3496}
3497
3498/**
3499 * lpfc_offline - Bring a HBA offline
3500 * @phba: pointer to lpfc hba data structure.
3501 *
3502 * This routine actually brings a HBA offline. It stops all the timers
3503 * associated with the HBA, brings down the SLI layer, and eventually
3504 * marks the HBA as in offline state for the upper layer protocol.
3505 **/
3506void
3507lpfc_offline(struct lpfc_hba *phba)
3508{
3509        struct Scsi_Host  *shost;
3510        struct lpfc_vport **vports;
3511        int i;
3512
3513        if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3514                return;
3515
3516        /* stop port and all timers associated with this hba */
3517        lpfc_stop_port(phba);
3518
3519        /* Tear down the local and target port registrations.  The
3520         * nvme transports need to cleanup.
3521         */
3522        lpfc_nvmet_destroy_targetport(phba);
3523        lpfc_nvme_destroy_localport(phba->pport);
3524
3525        vports = lpfc_create_vport_work_array(phba);
3526        if (vports != NULL)
3527                for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3528                        lpfc_stop_vport_timers(vports[i]);
3529        lpfc_destroy_vport_work_array(phba, vports);
3530        lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3531                        "0460 Bring Adapter offline\n");
3532        /* Bring down the SLI Layer and cleanup.  The HBA is offline
3533           now.  */
3534        lpfc_sli_hba_down(phba);
3535        spin_lock_irq(&phba->hbalock);
3536        phba->work_ha = 0;
3537        spin_unlock_irq(&phba->hbalock);
3538        vports = lpfc_create_vport_work_array(phba);
3539        if (vports != NULL)
3540                for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3541                        shost = lpfc_shost_from_vport(vports[i]);
3542                        spin_lock_irq(shost->host_lock);
3543                        vports[i]->work_port_events = 0;
3544                        vports[i]->fc_flag |= FC_OFFLINE_MODE;
3545                        spin_unlock_irq(shost->host_lock);
3546                }
3547        lpfc_destroy_vport_work_array(phba, vports);
3548
3549        if (phba->cfg_xri_rebalancing)
3550                lpfc_destroy_multixri_pools(phba);
3551}
3552
3553/**
3554 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3555 * @phba: pointer to lpfc hba data structure.
3556 *
3557 * This routine is to free all the SCSI buffers and IOCBs from the driver
3558 * list back to kernel. It is called from lpfc_pci_remove_one to free
3559 * the internal resources before the device is removed from the system.
3560 **/
3561static void
3562lpfc_scsi_free(struct lpfc_hba *phba)
3563{
3564        struct lpfc_io_buf *sb, *sb_next;
3565
3566        if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3567                return;
3568
3569        spin_lock_irq(&phba->hbalock);
3570
3571        /* Release all the lpfc_scsi_bufs maintained by this host. */
3572
3573        spin_lock(&phba->scsi_buf_list_put_lock);
3574        list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3575                                 list) {
3576                list_del(&sb->list);
3577                dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3578                              sb->dma_handle);
3579                kfree(sb);
3580                phba->total_scsi_bufs--;
3581        }
3582        spin_unlock(&phba->scsi_buf_list_put_lock);
3583
3584        spin_lock(&phba->scsi_buf_list_get_lock);
3585        list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3586                                 list) {
3587                list_del(&sb->list);
3588                dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3589                              sb->dma_handle);
3590                kfree(sb);
3591                phba->total_scsi_bufs--;
3592        }
3593        spin_unlock(&phba->scsi_buf_list_get_lock);
3594        spin_unlock_irq(&phba->hbalock);
3595}
3596
3597/**
3598 * lpfc_io_free - Free all the IO buffers and IOCBs from driver lists
3599 * @phba: pointer to lpfc hba data structure.
3600 *
3601 * This routine is to free all the IO buffers and IOCBs from the driver
3602 * list back to kernel. It is called from lpfc_pci_remove_one to free
3603 * the internal resources before the device is removed from the system.
3604 **/
3605void
3606lpfc_io_free(struct lpfc_hba *phba)
3607{
3608        struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next;
3609        struct lpfc_sli4_hdw_queue *qp;
3610        int idx;
3611
3612        for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3613                qp = &phba->sli4_hba.hdwq[idx];
3614                /* Release all the lpfc_nvme_bufs maintained by this host. */
3615                spin_lock(&qp->io_buf_list_put_lock);
3616                list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3617                                         &qp->lpfc_io_buf_list_put,
3618                                         list) {
3619                        list_del(&lpfc_ncmd->list);
3620                        qp->put_io_bufs--;
3621                        dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3622                                      lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3623                        if (phba->cfg_xpsgl && !phba->nvmet_support)
3624                                lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3625                        lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3626                        kfree(lpfc_ncmd);
3627                        qp->total_io_bufs--;
3628                }
3629                spin_unlock(&qp->io_buf_list_put_lock);
3630
3631                spin_lock(&qp->io_buf_list_get_lock);
3632                list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3633                                         &qp->lpfc_io_buf_list_get,
3634                                         list) {
3635                        list_del(&lpfc_ncmd->list);
3636                        qp->get_io_bufs--;
3637                        dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3638                                      lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3639                        if (phba->cfg_xpsgl && !phba->nvmet_support)
3640                                lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3641                        lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3642                        kfree(lpfc_ncmd);
3643                        qp->total_io_bufs--;
3644                }
3645                spin_unlock(&qp->io_buf_list_get_lock);
3646        }
3647}
3648
3649/**
3650 * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
3651 * @phba: pointer to lpfc hba data structure.
3652 *
3653 * This routine first calculates the sizes of the current els and allocated
3654 * scsi sgl lists, and then goes through all sgls to updates the physical
3655 * XRIs assigned due to port function reset. During port initialization, the
3656 * current els and allocated scsi sgl lists are 0s.
3657 *
3658 * Return codes
3659 *   0 - successful (for now, it always returns 0)
3660 **/
3661int
3662lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
3663{
3664        struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3665        uint16_t i, lxri, xri_cnt, els_xri_cnt;
3666        LIST_HEAD(els_sgl_list);
3667        int rc;
3668
3669        /*
3670         * update on pci function's els xri-sgl list
3671         */
3672        els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3673
3674        if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3675                /* els xri-sgl expanded */
3676                xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3677                lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3678                                "3157 ELS xri-sgl count increased from "
3679                                "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3680                                els_xri_cnt);
3681                /* allocate the additional els sgls */
3682                for (i = 0; i < xri_cnt; i++) {
3683                        sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3684                                             GFP_KERNEL);
3685                        if (sglq_entry == NULL) {
3686                                lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3687                                                "2562 Failure to allocate an "
3688                                                "ELS sgl entry:%d\n", i);
3689                                rc = -ENOMEM;
3690                                goto out_free_mem;
3691                        }
3692                        sglq_entry->buff_type = GEN_BUFF_TYPE;
3693                        sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3694                                                           &sglq_entry->phys);
3695                        if (sglq_entry->virt == NULL) {
3696                                kfree(sglq_entry);
3697                                lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3698                                                "2563 Failure to allocate an "
3699                                                "ELS mbuf:%d\n", i);
3700                                rc = -ENOMEM;
3701                                goto out_free_mem;
3702                        }
3703                        sglq_entry->sgl = sglq_entry->virt;
3704                        memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3705                        sglq_entry->state = SGL_FREED;
3706                        list_add_tail(&sglq_entry->list, &els_sgl_list);
3707                }
3708                spin_lock_irq(&phba->hbalock);
3709                spin_lock(&phba->sli4_hba.sgl_list_lock);
3710                list_splice_init(&els_sgl_list,
3711                                 &phba->sli4_hba.lpfc_els_sgl_list);
3712                spin_unlock(&phba->sli4_hba.sgl_list_lock);
3713                spin_unlock_irq(&phba->hbalock);
3714        } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3715                /* els xri-sgl shrinked */
3716                xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3717                lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3718                                "3158 ELS xri-sgl count decreased from "
3719                                "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3720                                els_xri_cnt);
3721                spin_lock_irq(&phba->hbalock);
3722                spin_lock(&phba->sli4_hba.sgl_list_lock);
3723                list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
3724                                 &els_sgl_list);
3725                /* release extra els sgls from list */
3726                for (i = 0; i < xri_cnt; i++) {
3727                        list_remove_head(&els_sgl_list,
3728                                         sglq_entry, struct lpfc_sglq, list);
3729                        if (sglq_entry) {
3730                                __lpfc_mbuf_free(phba, sglq_entry->virt,
3731                                                 sglq_entry->phys);
3732                                kfree(sglq_entry);
3733                        }
3734                }
3735                list_splice_init(&els_sgl_list,
3736                                 &phba->sli4_hba.lpfc_els_sgl_list);
3737                spin_unlock(&phba->sli4_hba.sgl_list_lock);
3738                spin_unlock_irq(&phba->hbalock);
3739        } else
3740                lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3741                                "3163 ELS xri-sgl count unchanged: %d\n",
3742                                els_xri_cnt);
3743        phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3744
3745        /* update xris to els sgls on the list */
3746        sglq_entry = NULL;
3747        sglq_entry_next = NULL;
3748        list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3749                                 &phba->sli4_hba.lpfc_els_sgl_list, list) {
3750                lxri = lpfc_sli4_next_xritag(phba);
3751                if (lxri == NO_XRI) {
3752                        lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3753                                        "2400 Failed to allocate xri for "
3754                                        "ELS sgl\n");
3755                        rc = -ENOMEM;
3756                        goto out_free_mem;
3757                }
3758                sglq_entry->sli4_lxritag = lxri;
3759                sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3760        }
3761        return 0;
3762
3763out_free_mem:
3764        lpfc_free_els_sgl_list(phba);
3765        return rc;
3766}
3767
3768/**
3769 * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
3770 * @phba: pointer to lpfc hba data structure.
3771 *
3772 * This routine first calculates the sizes of the current els and allocated
3773 * scsi sgl lists, and then goes through all sgls to updates the physical
3774 * XRIs assigned due to port function reset. During port initialization, the
3775 * current els and allocated scsi sgl lists are 0s.
3776 *
3777 * Return codes
3778 *   0 - successful (for now, it always returns 0)
3779 **/
3780int
3781lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
3782{
3783        struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3784        uint16_t i, lxri, xri_cnt, els_xri_cnt;
3785        uint16_t nvmet_xri_cnt;
3786        LIST_HEAD(nvmet_sgl_list);
3787        int rc;
3788
3789        /*
3790         * update on pci function's nvmet xri-sgl list
3791         */
3792        els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3793
3794        /* For NVMET, ALL remaining XRIs are dedicated for IO processing */
3795        nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3796        if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
3797                /* els xri-sgl expanded */
3798                xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
3799                lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3800                                "6302 NVMET xri-sgl cnt grew from %d to %d\n",
3801                                phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
3802                /* allocate the additional nvmet sgls */
3803                for (i = 0; i < xri_cnt; i++) {
3804                        sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3805                                             GFP_KERNEL);
3806                        if (sglq_entry == NULL) {
3807                                lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3808                                                "6303 Failure to allocate an "
3809                                                "NVMET sgl entry:%d\n", i);
3810                                rc = -ENOMEM;
3811                                goto out_free_mem;
3812                        }
3813                        sglq_entry->buff_type = NVMET_BUFF_TYPE;
3814                        sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
3815                                                           &sglq_entry->phys);
3816                        if (sglq_entry->virt == NULL) {
3817                                kfree(sglq_entry);
3818                                lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3819                                                "6304 Failure to allocate an "
3820                                                "NVMET buf:%d\n", i);
3821                                rc = -ENOMEM;
3822                                goto out_free_mem;
3823                        }
3824                        sglq_entry->sgl = sglq_entry->virt;
3825                        memset(sglq_entry->sgl, 0,
3826                               phba->cfg_sg_dma_buf_size);
3827                        sglq_entry->state = SGL_FREED;
3828                        list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
3829                }
3830                spin_lock_irq(&phba->hbalock);
3831                spin_lock(&phba->sli4_hba.sgl_list_lock);
3832                list_splice_init(&nvmet_sgl_list,
3833                                 &phba->sli4_hba.lpfc_nvmet_sgl_list);
3834                spin_unlock(&phba->sli4_hba.sgl_list_lock);
3835                spin_unlock_irq(&phba->hbalock);
3836        } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
3837                /* nvmet xri-sgl shrunk */
3838                xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
3839                lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3840                                "6305 NVMET xri-sgl count decreased from "
3841                                "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
3842                                nvmet_xri_cnt);
3843                spin_lock_irq(&phba->hbalock);
3844                spin_lock(&phba->sli4_hba.sgl_list_lock);
3845                list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
3846                                 &nvmet_sgl_list);
3847                /* release extra nvmet sgls from list */
3848                for (i = 0; i < xri_cnt; i++) {
3849                        list_remove_head(&nvmet_sgl_list,
3850                                         sglq_entry, struct lpfc_sglq, list);
3851                        if (sglq_entry) {
3852                                lpfc_nvmet_buf_free(phba, sglq_entry->virt,
3853                                                    sglq_entry->phys);
3854                                kfree(sglq_entry);
3855                        }
3856                }
3857                list_splice_init(&nvmet_sgl_list,
3858                                 &phba->sli4_hba.lpfc_nvmet_sgl_list);
3859                spin_unlock(&phba->sli4_hba.sgl_list_lock);
3860                spin_unlock_irq(&phba->hbalock);
3861        } else
3862                lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3863                                "6306 NVMET xri-sgl count unchanged: %d\n",
3864                                nvmet_xri_cnt);
3865        phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
3866
3867        /* update xris to nvmet sgls on the list */
3868        sglq_entry = NULL;
3869        sglq_entry_next = NULL;
3870        list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3871                                 &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
3872                lxri = lpfc_sli4_next_xritag(phba);
3873                if (lxri == NO_XRI) {
3874                        lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3875                                        "6307 Failed to allocate xri for "
3876                                        "NVMET sgl\n");
3877                        rc = -ENOMEM;
3878                        goto out_free_mem;
3879                }
3880                sglq_entry->sli4_lxritag = lxri;
3881                sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3882        }
3883        return 0;
3884
3885out_free_mem:
3886        lpfc_free_nvmet_sgl_list(phba);
3887        return rc;
3888}
3889
3890int
3891lpfc_io_buf_flush(struct lpfc_hba *phba, struct list_head *cbuf)
3892{
3893        LIST_HEAD(blist);
3894        struct lpfc_sli4_hdw_queue *qp;
3895        struct lpfc_io_buf *lpfc_cmd;
3896        struct lpfc_io_buf *iobufp, *prev_iobufp;
3897        int idx, cnt, xri, inserted;
3898
3899        cnt = 0;
3900        for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3901                qp = &phba->sli4_hba.hdwq[idx];
3902                spin_lock_irq(&qp->io_buf_list_get_lock);
3903                spin_lock(&qp->io_buf_list_put_lock);
3904
3905                /* Take everything off the get and put lists */
3906                list_splice_init(&qp->lpfc_io_buf_list_get, &blist);
3907                list_splice(&qp->lpfc_io_buf_list_put, &blist);
3908                INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
3909                INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
3910                cnt += qp->get_io_bufs + qp->put_io_bufs;
3911                qp->get_io_bufs = 0;
3912                qp->put_io_bufs = 0;
3913                qp->total_io_bufs = 0;
3914                spin_unlock(&qp->io_buf_list_put_lock);
3915                spin_unlock_irq(&qp->io_buf_list_get_lock);
3916        }
3917
3918        /*
3919         * Take IO buffers off blist and put on cbuf sorted by XRI.
3920         * This is because POST_SGL takes a sequential range of XRIs
3921         * to post to the firmware.
3922         */
3923        for (idx = 0; idx < cnt; idx++) {
3924                list_remove_head(&blist, lpfc_cmd, struct lpfc_io_buf, list);
3925                if (!lpfc_cmd)
3926                        return cnt;
3927                if (idx == 0) {
3928                        list_add_tail(&lpfc_cmd->list, cbuf);
3929                        continue;
3930                }
3931                xri = lpfc_cmd->cur_iocbq.sli4_xritag;
3932                inserted = 0;
3933                prev_iobufp = NULL;
3934                list_for_each_entry(iobufp, cbuf, list) {
3935                        if (xri < iobufp->cur_iocbq.sli4_xritag) {
3936                                if (prev_iobufp)
3937                                        list_add(&lpfc_cmd->list,
3938                                                 &prev_iobufp->list);
3939                                else
3940                                        list_add(&lpfc_cmd->list, cbuf);
3941                                inserted = 1;
3942                                break;
3943                        }
3944                        prev_iobufp = iobufp;
3945                }
3946                if (!inserted)
3947                        list_add_tail(&lpfc_cmd->list, cbuf);
3948        }
3949        return cnt;
3950}
3951
3952int
3953lpfc_io_buf_replenish(struct lpfc_hba *phba, struct list_head *cbuf)
3954{
3955        struct lpfc_sli4_hdw_queue *qp;
3956        struct lpfc_io_buf *lpfc_cmd;
3957        int idx, cnt;
3958
3959        qp = phba->sli4_hba.hdwq;
3960        cnt = 0;
3961        while (!list_empty(cbuf)) {
3962                for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3963                        list_remove_head(cbuf, lpfc_cmd,
3964                                         struct lpfc_io_buf, list);
3965                        if (!lpfc_cmd)
3966                                return cnt;
3967                        cnt++;
3968                        qp = &phba->sli4_hba.hdwq[idx];
3969                        lpfc_cmd->hdwq_no = idx;
3970                        lpfc_cmd->hdwq = qp;
3971                        lpfc_cmd->cur_iocbq.wqe_cmpl = NULL;
3972                        lpfc_cmd->cur_iocbq.iocb_cmpl = NULL;
3973                        spin_lock(&qp->io_buf_list_put_lock);
3974                        list_add_tail(&lpfc_cmd->list,
3975                                      &qp->lpfc_io_buf_list_put);
3976                        qp->put_io_bufs++;
3977                        qp->total_io_bufs++;
3978                        spin_unlock(&qp->io_buf_list_put_lock);
3979                }
3980        }
3981        return cnt;
3982}
3983
3984/**
3985 * lpfc_sli4_io_sgl_update - update xri-sgl sizing and mapping
3986 * @phba: pointer to lpfc hba data structure.
3987 *
3988 * This routine first calculates the sizes of the current els and allocated
3989 * scsi sgl lists, and then goes through all sgls to updates the physical
3990 * XRIs assigned due to port function reset. During port initialization, the
3991 * current els and allocated scsi sgl lists are 0s.
3992 *
3993 * Return codes
3994 *   0 - successful (for now, it always returns 0)
3995 **/
3996int
3997lpfc_sli4_io_sgl_update(struct lpfc_hba *phba)
3998{
3999        struct lpfc_io_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
4000        uint16_t i, lxri, els_xri_cnt;
4001        uint16_t io_xri_cnt, io_xri_max;
4002        LIST_HEAD(io_sgl_list);
4003        int rc, cnt;
4004
4005        /*
4006         * update on pci function's allocated nvme xri-sgl list
4007         */
4008
4009        /* maximum number of xris available for nvme buffers */
4010        els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4011        io_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4012        phba->sli4_hba.io_xri_max = io_xri_max;
4013
4014        lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4015                        "6074 Current allocated XRI sgl count:%d, "
4016                        "maximum XRI count:%d\n",
4017                        phba->sli4_hba.io_xri_cnt,
4018                        phba->sli4_hba.io_xri_max);
4019
4020        cnt = lpfc_io_buf_flush(phba, &io_sgl_list);
4021
4022        if (phba->sli4_hba.io_xri_cnt > phba->sli4_hba.io_xri_max) {
4023                /* max nvme xri shrunk below the allocated nvme buffers */
4024                io_xri_cnt = phba->sli4_hba.io_xri_cnt -
4025                                        phba->sli4_hba.io_xri_max;
4026                /* release the extra allocated nvme buffers */
4027                for (i = 0; i < io_xri_cnt; i++) {
4028                        list_remove_head(&io_sgl_list, lpfc_ncmd,
4029                                         struct lpfc_io_buf, list);
4030                        if (lpfc_ncmd) {
4031                                dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4032                                              lpfc_ncmd->data,
4033                                              lpfc_ncmd->dma_handle);
4034                                kfree(lpfc_ncmd);
4035                        }
4036                }
4037                phba->sli4_hba.io_xri_cnt -= io_xri_cnt;
4038        }
4039
4040        /* update xris associated to remaining allocated nvme buffers */
4041        lpfc_ncmd = NULL;
4042        lpfc_ncmd_next = NULL;
4043        phba->sli4_hba.io_xri_cnt = cnt;
4044        list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
4045                                 &io_sgl_list, list) {
4046                lxri = lpfc_sli4_next_xritag(phba);
4047                if (lxri == NO_XRI) {
4048                        lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4049                                        "6075 Failed to allocate xri for "
4050                                        "nvme buffer\n");
4051                        rc = -ENOMEM;
4052                        goto out_free_mem;
4053                }
4054                lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
4055                lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4056        }
4057        cnt = lpfc_io_buf_replenish(phba, &io_sgl_list);
4058        return 0;
4059
4060out_free_mem:
4061        lpfc_io_free(phba);
4062        return rc;
4063}
4064
4065/**
4066 * lpfc_new_io_buf - IO buffer allocator for HBA with SLI4 IF spec
4067 * @vport: The virtual port for which this call being executed.
4068 * @num_to_allocate: The requested number of buffers to allocate.
4069 *
4070 * This routine allocates nvme buffers for device with SLI-4 interface spec,
4071 * the nvme buffer contains all the necessary information needed to initiate
4072 * an I/O. After allocating up to @num_to_allocate IO buffers and put
4073 * them on a list, it post them to the port by using SGL block post.
4074 *
4075 * Return codes:
4076 *   int - number of IO buffers that were allocated and posted.
4077 *   0 = failure, less than num_to_alloc is a partial failure.
4078 **/
4079int
4080lpfc_new_io_buf(struct lpfc_hba *phba, int num_to_alloc)
4081{
4082        struct lpfc_io_buf *lpfc_ncmd;
4083        struct lpfc_iocbq *pwqeq;
4084        uint16_t iotag, lxri = 0;
4085        int bcnt, num_posted;
4086        LIST_HEAD(prep_nblist);
4087        LIST_HEAD(post_nblist);
4088        LIST_HEAD(nvme_nblist);
4089
4090        phba->sli4_hba.io_xri_cnt = 0;
4091        for (bcnt = 0; bcnt < num_to_alloc; bcnt++) {
4092                lpfc_ncmd = kzalloc(sizeof(*lpfc_ncmd), GFP_KERNEL);
4093                if (!lpfc_ncmd)
4094                        break;
4095                /*
4096                 * Get memory from the pci pool to map the virt space to
4097                 * pci bus space for an I/O. The DMA buffer includes the
4098                 * number of SGE's necessary to support the sg_tablesize.
4099                 */
4100                lpfc_ncmd->data = dma_pool_zalloc(phba->lpfc_sg_dma_buf_pool,
4101                                                  GFP_KERNEL,
4102                                                  &lpfc_ncmd->dma_handle);
4103                if (!lpfc_ncmd->data) {
4104                        kfree(lpfc_ncmd);
4105                        break;
4106                }
4107
4108                if (phba->cfg_xpsgl && !phba->nvmet_support) {
4109                        INIT_LIST_HEAD(&lpfc_ncmd->dma_sgl_xtra_list);
4110                } else {
4111                        /*
4112                         * 4K Page alignment is CRITICAL to BlockGuard, double
4113                         * check to be sure.
4114                         */
4115                        if ((phba->sli3_options & LPFC_SLI3_BG_ENABLED) &&
4116                            (((unsigned long)(lpfc_ncmd->data) &
4117                            (unsigned long)(SLI4_PAGE_SIZE - 1)) != 0)) {
4118                                lpfc_printf_log(phba, KERN_ERR, LOG_FCP,
4119                                                "3369 Memory alignment err: "
4120                                                "addr=%lx\n",
4121                                                (unsigned long)lpfc_ncmd->data);
4122                                dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4123                                              lpfc_ncmd->data,
4124                                              lpfc_ncmd->dma_handle);
4125                                kfree(lpfc_ncmd);
4126                                break;
4127                        }
4128                }
4129
4130                INIT_LIST_HEAD(&lpfc_ncmd->dma_cmd_rsp_list);
4131
4132                lxri = lpfc_sli4_next_xritag(phba);
4133                if (lxri == NO_XRI) {
4134                        dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4135                                      lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4136                        kfree(lpfc_ncmd);
4137                        break;
4138                }
4139                pwqeq = &lpfc_ncmd->cur_iocbq;
4140
4141                /* Allocate iotag for lpfc_ncmd->cur_iocbq. */
4142                iotag = lpfc_sli_next_iotag(phba, pwqeq);
4143                if (iotag == 0) {
4144                        dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4145                                      lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4146                        kfree(lpfc_ncmd);
4147                        lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
4148                                        "6121 Failed to allocate IOTAG for"
4149                                        " XRI:0x%x\n", lxri);
4150                        lpfc_sli4_free_xri(phba, lxri);
4151                        break;
4152                }
4153                pwqeq->sli4_lxritag = lxri;
4154                pwqeq->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4155                pwqeq->context1 = lpfc_ncmd;
4156
4157                /* Initialize local short-hand pointers. */
4158                lpfc_ncmd->dma_sgl = lpfc_ncmd->data;
4159                lpfc_ncmd->dma_phys_sgl = lpfc_ncmd->dma_handle;
4160                lpfc_ncmd->cur_iocbq.context1 = lpfc_ncmd;
4161                spin_lock_init(&lpfc_ncmd->buf_lock);
4162
4163                /* add the nvme buffer to a post list */
4164                list_add_tail(&lpfc_ncmd->list, &post_nblist);
4165                phba->sli4_hba.io_xri_cnt++;
4166        }
4167        lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
4168                        "6114 Allocate %d out of %d requested new NVME "
4169                        "buffers\n", bcnt, num_to_alloc);
4170
4171        /* post the list of nvme buffer sgls to port if available */
4172        if (!list_empty(&post_nblist))
4173                num_posted = lpfc_sli4_post_io_sgl_list(
4174                                phba, &post_nblist, bcnt);
4175        else
4176                num_posted = 0;
4177
4178        return num_posted;
4179}
4180
4181static uint64_t
4182lpfc_get_wwpn(struct lpfc_hba *phba)
4183{
4184        uint64_t wwn;
4185        int rc;
4186        LPFC_MBOXQ_t *mboxq;
4187        MAILBOX_t *mb;
4188
4189        mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4190                                                GFP_KERNEL);
4191        if (!mboxq)
4192                return (uint64_t)-1;
4193
4194        /* First get WWN of HBA instance */
4195        lpfc_read_nv(phba, mboxq);
4196        rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4197        if (rc != MBX_SUCCESS) {
4198                lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4199                                "6019 Mailbox failed , mbxCmd x%x "
4200                                "READ_NV, mbxStatus x%x\n",
4201                                bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4202                                bf_get(lpfc_mqe_status, &mboxq->u.mqe));
4203                mempool_free(mboxq, phba->mbox_mem_pool);
4204                return (uint64_t) -1;
4205        }
4206        mb = &mboxq->u.mb;
4207        memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
4208        /* wwn is WWPN of HBA instance */
4209        mempool_free(mboxq, phba->mbox_mem_pool);
4210        if (phba->sli_rev == LPFC_SLI_REV4)
4211                return be64_to_cpu(wwn);
4212        else
4213                return rol64(wwn, 32);
4214}
4215
4216/**
4217 * lpfc_create_port - Create an FC port
4218 * @phba: pointer to lpfc hba data structure.
4219 * @instance: a unique integer ID to this FC port.
4220 * @dev: pointer to the device data structure.
4221 *
4222 * This routine creates a FC port for the upper layer protocol. The FC port
4223 * can be created on top of either a physical port or a virtual port provided
4224 * by the HBA. This routine also allocates a SCSI host data structure (shost)
4225 * and associates the FC port created before adding the shost into the SCSI
4226 * layer.
4227 *
4228 * Return codes
4229 *   @vport - pointer to the virtual N_Port data structure.
4230 *   NULL - port create failed.
4231 **/
4232struct lpfc_vport *
4233lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
4234{
4235        struct lpfc_vport *vport;
4236        struct Scsi_Host  *shost = NULL;
4237        int error = 0;
4238        int i;
4239        uint64_t wwn;
4240        bool use_no_reset_hba = false;
4241        int rc;
4242
4243        if (lpfc_no_hba_reset_cnt) {
4244                if (phba->sli_rev < LPFC_SLI_REV4 &&
4245                    dev == &phba->pcidev->dev) {
4246                        /* Reset the port first */
4247                        lpfc_sli_brdrestart(phba);
4248                        rc = lpfc_sli_chipset_init(phba);
4249                        if (rc)
4250                                return NULL;
4251                }
4252                wwn = lpfc_get_wwpn(phba);
4253        }
4254
4255        for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
4256                if (wwn == lpfc_no_hba_reset[i]) {
4257                        lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4258                                        "6020 Setting use_no_reset port=%llx\n",
4259                                        wwn);
4260                        use_no_reset_hba = true;
4261                        break;
4262                }
4263        }
4264
4265        if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
4266                if (dev != &phba->pcidev->dev) {
4267                        shost = scsi_host_alloc(&lpfc_vport_template,
4268                                                sizeof(struct lpfc_vport));
4269                } else {
4270                        if (!use_no_reset_hba)
4271                                shost = scsi_host_alloc(&lpfc_template,
4272                                                sizeof(struct lpfc_vport));
4273                        else
4274                                shost = scsi_host_alloc(&lpfc_template_no_hr,
4275                                                sizeof(struct lpfc_vport));
4276                }
4277        } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
4278                shost = scsi_host_alloc(&lpfc_template_nvme,
4279                                        sizeof(struct lpfc_vport));
4280        }
4281        if (!shost)
4282                goto out;
4283
4284        vport = (struct lpfc_vport *) shost->hostdata;
4285        vport->phba = phba;
4286        vport->load_flag |= FC_LOADING;
4287        vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
4288        vport->fc_rscn_flush = 0;
4289        lpfc_get_vport_cfgparam(vport);
4290
4291        /* Adjust value in vport */
4292        vport->cfg_enable_fc4_type = phba->cfg_enable_fc4_type;
4293
4294        shost->unique_id = instance;
4295        shost->max_id = LPFC_MAX_TARGET;
4296        shost->max_lun = vport->cfg_max_luns;
4297        shost->this_id = -1;
4298        shost->max_cmd_len = 16;
4299
4300        if (phba->sli_rev == LPFC_SLI_REV4) {
4301                if (!phba->cfg_fcp_mq_threshold ||
4302                    phba->cfg_fcp_mq_threshold > phba->cfg_hdw_queue)
4303                        phba->cfg_fcp_mq_threshold = phba->cfg_hdw_queue;
4304
4305                shost->nr_hw_queues = min_t(int, 2 * num_possible_nodes(),
4306                                            phba->cfg_fcp_mq_threshold);
4307
4308                shost->dma_boundary =
4309                        phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
4310
4311                if (phba->cfg_xpsgl && !phba->nvmet_support)
4312                        shost->sg_tablesize = LPFC_MAX_SG_TABLESIZE;
4313                else
4314                        shost->sg_tablesize = phba->cfg_scsi_seg_cnt;
4315        } else
4316                /* SLI-3 has a limited number of hardware queues (3),
4317                 * thus there is only one for FCP processing.
4318                 */
4319                shost->nr_hw_queues = 1;
4320
4321        /*
4322         * Set initial can_queue value since 0 is no longer supported and
4323         * scsi_add_host will fail. This will be adjusted later based on the
4324         * max xri value determined in hba setup.
4325         */
4326        shost->can_queue = phba->cfg_hba_queue_depth - 10;
4327        if (dev != &phba->pcidev->dev) {
4328                shost->transportt = lpfc_vport_transport_template;
4329                vport->port_type = LPFC_NPIV_PORT;
4330        } else {
4331                shost->transportt = lpfc_transport_template;
4332                vport->port_type = LPFC_PHYSICAL_PORT;
4333        }
4334
4335        /* Initialize all internally managed lists. */
4336        INIT_LIST_HEAD(&vport->fc_nodes);
4337        INIT_LIST_HEAD(&vport->rcv_buffer_list);
4338        spin_lock_init(&vport->work_port_lock);
4339
4340        timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
4341
4342        timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
4343
4344        timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
4345
4346        if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
4347                lpfc_setup_bg(phba, shost);
4348
4349        error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
4350        if (error)
4351                goto out_put_shost;
4352
4353        spin_lock_irq(&phba->port_list_lock);
4354        list_add_tail(&vport->listentry, &phba->port_list);
4355        spin_unlock_irq(&phba->port_list_lock);
4356        return vport;
4357
4358out_put_shost:
4359        scsi_host_put(shost);
4360out:
4361        return NULL;
4362}
4363
4364/**
4365 * destroy_port -  destroy an FC port
4366 * @vport: pointer to an lpfc virtual N_Port data structure.
4367 *
4368 * This routine destroys a FC port from the upper layer protocol. All the
4369 * resources associated with the port are released.
4370 **/
4371void
4372destroy_port(struct lpfc_vport *vport)
4373{
4374        struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4375        struct lpfc_hba  *phba = vport->phba;
4376
4377        lpfc_debugfs_terminate(vport);
4378        fc_remove_host(shost);
4379        scsi_remove_host(shost);
4380
4381        spin_lock_irq(&phba->port_list_lock);
4382        list_del_init(&vport->listentry);
4383        spin_unlock_irq(&phba->port_list_lock);
4384
4385        lpfc_cleanup(vport);
4386        return;
4387}
4388
4389/**
4390 * lpfc_get_instance - Get a unique integer ID
4391 *
4392 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
4393 * uses the kernel idr facility to perform the task.
4394 *
4395 * Return codes:
4396 *   instance - a unique integer ID allocated as the new instance.
4397 *   -1 - lpfc get instance failed.
4398 **/
4399int
4400lpfc_get_instance(void)
4401{
4402        int ret;
4403
4404        ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
4405        return ret < 0 ? -1 : ret;
4406}
4407
4408/**
4409 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
4410 * @shost: pointer to SCSI host data structure.
4411 * @time: elapsed time of the scan in jiffies.
4412 *
4413 * This routine is called by the SCSI layer with a SCSI host to determine
4414 * whether the scan host is finished.
4415 *
4416 * Note: there is no scan_start function as adapter initialization will have
4417 * asynchronously kicked off the link initialization.
4418 *
4419 * Return codes
4420 *   0 - SCSI host scan is not over yet.
4421 *   1 - SCSI host scan is over.
4422 **/
4423int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4424{
4425        struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4426        struct lpfc_hba   *phba = vport->phba;
4427        int stat = 0;
4428
4429        spin_lock_irq(shost->host_lock);
4430
4431        if (vport->load_flag & FC_UNLOADING) {
4432                stat = 1;
4433                goto finished;
4434        }
4435        if (time >= msecs_to_jiffies(30 * 1000)) {
4436                lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4437                                "0461 Scanning longer than 30 "
4438                                "seconds.  Continuing initialization\n");
4439                stat = 1;
4440                goto finished;
4441        }
4442        if (time >= msecs_to_jiffies(15 * 1000) &&
4443            phba->link_state <= LPFC_LINK_DOWN) {
4444                lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4445                                "0465 Link down longer than 15 "
4446                                "seconds.  Continuing initialization\n");
4447                stat = 1;
4448                goto finished;
4449        }
4450
4451        if (vport->port_state != LPFC_VPORT_READY)
4452                goto finished;
4453        if (vport->num_disc_nodes || vport->fc_prli_sent)
4454                goto finished;
4455        if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
4456                goto finished;
4457        if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4458                goto finished;
4459
4460        stat = 1;
4461
4462finished:
4463        spin_unlock_irq(shost->host_lock);
4464        return stat;
4465}
4466
4467static void lpfc_host_supported_speeds_set(struct Scsi_Host *shost)
4468{
4469        struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4470        struct lpfc_hba   *phba = vport->phba;
4471
4472        fc_host_supported_speeds(shost) = 0;
4473        if (phba->lmt & LMT_128Gb)
4474                fc_host_supported_speeds(shost) |= FC_PORTSPEED_128GBIT;
4475        if (phba->lmt & LMT_64Gb)
4476                fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT;
4477        if (phba->lmt & LMT_32Gb)
4478                fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4479        if (phba->lmt & LMT_16Gb)
4480                fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4481        if (phba->lmt & LMT_10Gb)
4482                fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4483        if (phba->lmt & LMT_8Gb)
4484                fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4485        if (phba->lmt & LMT_4Gb)
4486                fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4487        if (phba->lmt & LMT_2Gb)
4488                fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4489        if (phba->lmt & LMT_1Gb)
4490                fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4491}
4492
4493/**
4494 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
4495 * @shost: pointer to SCSI host data structure.
4496 *
4497 * This routine initializes a given SCSI host attributes on a FC port. The
4498 * SCSI host can be either on top of a physical port or a virtual port.
4499 **/
4500void lpfc_host_attrib_init(struct Scsi_Host *shost)
4501{
4502        struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4503        struct lpfc_hba   *phba = vport->phba;
4504        /*
4505         * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
4506         */
4507
4508        fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4509        fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4510        fc_host_supported_classes(shost) = FC_COS_CLASS3;
4511
4512        memset(fc_host_supported_fc4s(shost), 0,
4513               sizeof(fc_host_supported_fc4s(shost)));
4514        fc_host_supported_fc4s(shost)[2] = 1;
4515        fc_host_supported_fc4s(shost)[7] = 1;
4516
4517        lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
4518                                 sizeof fc_host_symbolic_name(shost));
4519
4520        lpfc_host_supported_speeds_set(shost);
4521
4522        fc_host_maxframe_size(shost) =
4523                (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4524                (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4525
4526        fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4527
4528        /* This value is also unchanging */
4529        memset(fc_host_active_fc4s(shost), 0,
4530               sizeof(fc_host_active_fc4s(shost)));
4531        fc_host_active_fc4s(shost)[2] = 1;
4532        fc_host_active_fc4s(shost)[7] = 1;
4533
4534        fc_host_max_npiv_vports(shost) = phba->max_vpi;
4535        spin_lock_irq(shost->host_lock);
4536        vport->load_flag &= ~FC_LOADING;
4537        spin_unlock_irq(shost->host_lock);
4538}
4539
4540/**
4541 * lpfc_stop_port_s3 - Stop SLI3 device port
4542 * @phba: pointer to lpfc hba data structure.
4543 *
4544 * This routine is invoked to stop an SLI3 device port, it stops the device
4545 * from generating interrupts and stops the device driver's timers for the
4546 * device.
4547 **/
4548static void
4549lpfc_stop_port_s3(struct lpfc_hba *phba)
4550{
4551        /* Clear all interrupt enable conditions */
4552        writel(0, phba->HCregaddr);
4553        readl(phba->HCregaddr); /* flush */
4554        /* Clear all pending interrupts */
4555        writel(0xffffffff, phba->HAregaddr);
4556        readl(phba->HAregaddr); /* flush */
4557
4558        /* Reset some HBA SLI setup states */
4559        lpfc_stop_hba_timers(phba);
4560        phba->pport->work_port_events = 0;
4561}
4562
4563/**
4564 * lpfc_stop_port_s4 - Stop SLI4 device port
4565 * @phba: pointer to lpfc hba data structure.
4566 *
4567 * This routine is invoked to stop an SLI4 device port, it stops the device
4568 * from generating interrupts and stops the device driver's timers for the
4569 * device.
4570 **/
4571static void
4572lpfc_stop_port_s4(struct lpfc_hba *phba)
4573{
4574        /* Reset some HBA SLI4 setup states */
4575        lpfc_stop_hba_timers(phba);
4576        if (phba->pport)
4577                phba->pport->work_port_events = 0;
4578        phba->sli4_hba.intr_enable = 0;
4579}
4580
4581/**
4582 * lpfc_stop_port - Wrapper function for stopping hba port
4583 * @phba: Pointer to HBA context object.
4584 *
4585 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4586 * the API jump table function pointer from the lpfc_hba struct.
4587 **/
4588void
4589lpfc_stop_port(struct lpfc_hba *phba)
4590{
4591        phba->lpfc_stop_port(phba);
4592
4593        if (phba->wq)
4594                flush_workqueue(phba->wq);
4595}
4596
4597/**
4598 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4599 * @phba: Pointer to hba for which this call is being executed.
4600 *
4601 * This routine starts the timer waiting for the FCF rediscovery to complete.
4602 **/
4603void
4604lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4605{
4606        unsigned long fcf_redisc_wait_tmo =
4607                (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
4608        /* Start fcf rediscovery wait period timer */
4609        mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
4610        spin_lock_irq(&phba->hbalock);
4611        /* Allow action to new fcf asynchronous event */
4612        phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
4613        /* Mark the FCF rediscovery pending state */
4614        phba->fcf.fcf_flag |= FCF_REDISC_PEND;
4615        spin_unlock_irq(&phba->hbalock);
4616}
4617
4618/**
4619 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
4620 * @ptr: Map to lpfc_hba data structure pointer.
4621 *
4622 * This routine is invoked when waiting for FCF table rediscover has been
4623 * timed out. If new FCF record(s) has (have) been discovered during the
4624 * wait period, a new FCF event shall be added to the FCOE async event
4625 * list, and then worker thread shall be waked up for processing from the
4626 * worker thread context.
4627 **/
4628static void
4629lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
4630{
4631        struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
4632
4633        /* Don't send FCF rediscovery event if timer cancelled */
4634        spin_lock_irq(&phba->hbalock);
4635        if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
4636                spin_unlock_irq(&phba->hbalock);
4637                return;
4638        }
4639        /* Clear FCF rediscovery timer pending flag */
4640        phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
4641        /* FCF rediscovery event to worker thread */
4642        phba->fcf.fcf_flag |= FCF_REDISC_EVT;
4643        spin_unlock_irq(&phba->hbalock);
4644        lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
4645                        "2776 FCF rediscover quiescent timer expired\n");
4646        /* wake up worker thread */
4647        lpfc_worker_wake_up(phba);
4648}
4649
4650/**
4651 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
4652 * @phba: pointer to lpfc hba data structure.
4653 * @acqe_link: pointer to the async link completion queue entry.
4654 *
4655 * This routine is to parse the SLI4 link-attention link fault code.
4656 **/
4657static void
4658lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
4659                           struct lpfc_acqe_link *acqe_link)
4660{
4661        switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
4662        case LPFC_ASYNC_LINK_FAULT_NONE:
4663        case LPFC_ASYNC_LINK_FAULT_LOCAL:
4664        case LPFC_ASYNC_LINK_FAULT_REMOTE:
4665        case LPFC_ASYNC_LINK_FAULT_LR_LRR:
4666                break;
4667        default:
4668                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4669                                "0398 Unknown link fault code: x%x\n",
4670                                bf_get(lpfc_acqe_link_fault, acqe_link));
4671                break;
4672        }
4673}
4674
4675/**
4676 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
4677 * @phba: pointer to lpfc hba data structure.
4678 * @acqe_link: pointer to the async link completion queue entry.
4679 *
4680 * This routine is to parse the SLI4 link attention type and translate it
4681 * into the base driver's link attention type coding.
4682 *
4683 * Return: Link attention type in terms of base driver's coding.
4684 **/
4685static uint8_t
4686lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
4687                          struct lpfc_acqe_link *acqe_link)
4688{
4689        uint8_t att_type;
4690
4691        switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
4692        case LPFC_ASYNC_LINK_STATUS_DOWN:
4693        case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
4694                att_type = LPFC_ATT_LINK_DOWN;
4695                break;
4696        case LPFC_ASYNC_LINK_STATUS_UP:
4697                /* Ignore physical link up events - wait for logical link up */
4698                att_type = LPFC_ATT_RESERVED;
4699                break;
4700        case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
4701                att_type = LPFC_ATT_LINK_UP;
4702                break;
4703        default:
4704                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4705                                "0399 Invalid link attention type: x%x\n",
4706                                bf_get(lpfc_acqe_link_status, acqe_link));
4707                att_type = LPFC_ATT_RESERVED;
4708                break;
4709        }
4710        return att_type;
4711}
4712
4713/**
4714 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
4715 * @phba: pointer to lpfc hba data structure.
4716 *
4717 * This routine is to get an SLI3 FC port's link speed in Mbps.
4718 *
4719 * Return: link speed in terms of Mbps.
4720 **/
4721uint32_t
4722lpfc_sli_port_speed_get(struct lpfc_hba *phba)
4723{
4724        uint32_t link_speed;
4725
4726        if (!lpfc_is_link_up(phba))
4727                return 0;
4728
4729        if (phba->sli_rev <= LPFC_SLI_REV3) {
4730                switch (phba->fc_linkspeed) {
4731                case LPFC_LINK_SPEED_1GHZ:
4732                        link_speed = 1000;
4733                        break;
4734                case LPFC_LINK_SPEED_2GHZ:
4735                        link_speed = 2000;
4736                        break;
4737                case LPFC_LINK_SPEED_4GHZ:
4738                        link_speed = 4000;
4739                        break;
4740                case LPFC_LINK_SPEED_8GHZ:
4741                        link_speed = 8000;
4742                        break;
4743                case LPFC_LINK_SPEED_10GHZ:
4744                        link_speed = 10000;
4745                        break;
4746                case LPFC_LINK_SPEED_16GHZ:
4747                        link_speed = 16000;
4748                        break;
4749                default:
4750                        link_speed = 0;
4751                }
4752        } else {
4753                if (phba->sli4_hba.link_state.logical_speed)
4754                        link_speed =
4755                              phba->sli4_hba.link_state.logical_speed;
4756                else
4757                        link_speed = phba->sli4_hba.link_state.speed;
4758        }
4759        return link_speed;
4760}
4761
4762/**
4763 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
4764 * @phba: pointer to lpfc hba data structure.
4765 * @evt_code: asynchronous event code.
4766 * @speed_code: asynchronous event link speed code.
4767 *
4768 * This routine is to parse the giving SLI4 async event link speed code into
4769 * value of Mbps for the link speed.
4770 *
4771 * Return: link speed in terms of Mbps.
4772 **/
4773static uint32_t
4774lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
4775                           uint8_t speed_code)
4776{
4777        uint32_t port_speed;
4778
4779        switch (evt_code) {
4780        case LPFC_TRAILER_CODE_LINK:
4781                switch (speed_code) {
4782                case LPFC_ASYNC_LINK_SPEED_ZERO:
4783                        port_speed = 0;
4784                        break;
4785                case LPFC_ASYNC_LINK_SPEED_10MBPS:
4786                        port_speed = 10;
4787                        break;
4788                case LPFC_ASYNC_LINK_SPEED_100MBPS:
4789                        port_speed = 100;
4790                        break;
4791                case LPFC_ASYNC_LINK_SPEED_1GBPS:
4792                        port_speed = 1000;
4793                        break;
4794                case LPFC_ASYNC_LINK_SPEED_10GBPS:
4795                        port_speed = 10000;
4796                        break;
4797                case LPFC_ASYNC_LINK_SPEED_20GBPS:
4798                        port_speed = 20000;
4799                        break;
4800                case LPFC_ASYNC_LINK_SPEED_25GBPS:
4801                        port_speed = 25000;
4802                        break;
4803                case LPFC_ASYNC_LINK_SPEED_40GBPS:
4804                        port_speed = 40000;
4805                        break;
4806                default:
4807                        port_speed = 0;
4808                }
4809                break;
4810        case LPFC_TRAILER_CODE_FC:
4811                switch (speed_code) {
4812                case LPFC_FC_LA_SPEED_UNKNOWN:
4813                        port_speed = 0;
4814                        break;
4815                case LPFC_FC_LA_SPEED_1G:
4816                        port_speed = 1000;
4817                        break;
4818                case LPFC_FC_LA_SPEED_2G:
4819                        port_speed = 2000;
4820                        break;
4821                case LPFC_FC_LA_SPEED_4G:
4822                        port_speed = 4000;
4823                        break;
4824                case LPFC_FC_LA_SPEED_8G:
4825                        port_speed = 8000;
4826                        break;
4827                case LPFC_FC_LA_SPEED_10G:
4828                        port_speed = 10000;
4829                        break;
4830                case LPFC_FC_LA_SPEED_16G:
4831                        port_speed = 16000;
4832                        break;
4833                case LPFC_FC_LA_SPEED_32G:
4834                        port_speed = 32000;
4835                        break;
4836                case LPFC_FC_LA_SPEED_64G:
4837                        port_speed = 64000;
4838                        break;
4839                case LPFC_FC_LA_SPEED_128G:
4840                        port_speed = 128000;
4841                        break;
4842                default:
4843                        port_speed = 0;
4844                }
4845                break;
4846        default:
4847                port_speed = 0;
4848        }
4849        return port_speed;
4850}
4851
4852/**
4853 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
4854 * @phba: pointer to lpfc hba data structure.
4855 * @acqe_link: pointer to the async link completion queue entry.
4856 *
4857 * This routine is to handle the SLI4 asynchronous FCoE link event.
4858 **/
4859static void
4860lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
4861                         struct lpfc_acqe_link *acqe_link)
4862{
4863        struct lpfc_dmabuf *mp;
4864        LPFC_MBOXQ_t *pmb;
4865        MAILBOX_t *mb;
4866        struct lpfc_mbx_read_top *la;
4867        uint8_t att_type;
4868        int rc;
4869
4870        att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
4871        if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
4872                return;
4873        phba->fcoe_eventtag = acqe_link->event_tag;
4874        pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4875        if (!pmb) {
4876                lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4877                                "0395 The mboxq allocation failed\n");
4878                return;
4879        }
4880        mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4881        if (!mp) {
4882                lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4883                                "0396 The lpfc_dmabuf allocation failed\n");
4884                goto out_free_pmb;
4885        }
4886        mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4887        if (!mp->virt) {
4888                lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4889                                "0397 The mbuf allocation failed\n");
4890                goto out_free_dmabuf;
4891        }
4892
4893        /* Cleanup any outstanding ELS commands */
4894        lpfc_els_flush_all_cmd(phba);
4895
4896        /* Block ELS IOCBs until we have done process link event */
4897        phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4898
4899        /* Update link event statistics */
4900        phba->sli.slistat.link_event++;
4901
4902        /* Create lpfc_handle_latt mailbox command from link ACQE */
4903        lpfc_read_topology(phba, pmb, mp);
4904        pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4905        pmb->vport = phba->pport;
4906
4907        /* Keep the link status for extra SLI4 state machine reference */
4908        phba->sli4_hba.link_state.speed =
4909                        lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
4910                                bf_get(lpfc_acqe_link_speed, acqe_link));
4911        phba->sli4_hba.link_state.duplex =
4912                                bf_get(lpfc_acqe_link_duplex, acqe_link);
4913        phba->sli4_hba.link_state.status =
4914                                bf_get(lpfc_acqe_link_status, acqe_link);
4915        phba->sli4_hba.link_state.type =
4916                                bf_get(lpfc_acqe_link_type, acqe_link);
4917        phba->sli4_hba.link_state.number =
4918                                bf_get(lpfc_acqe_link_number, acqe_link);
4919        phba->sli4_hba.link_state.fault =
4920                                bf_get(lpfc_acqe_link_fault, acqe_link);
4921        phba->sli4_hba.link_state.logical_speed =
4922                        bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
4923
4924        lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4925                        "2900 Async FC/FCoE Link event - Speed:%dGBit "
4926                        "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
4927                        "Logical speed:%dMbps Fault:%d\n",
4928                        phba->sli4_hba.link_state.speed,
4929                        phba->sli4_hba.link_state.topology,
4930                        phba->sli4_hba.link_state.status,
4931                        phba->sli4_hba.link_state.type,
4932                        phba->sli4_hba.link_state.number,
4933                        phba->sli4_hba.link_state.logical_speed,
4934                        phba->sli4_hba.link_state.fault);
4935        /*
4936         * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
4937         * topology info. Note: Optional for non FC-AL ports.
4938         */
4939        if (!(phba->hba_flag & HBA_FCOE_MODE)) {
4940                rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4941                if (rc == MBX_NOT_FINISHED)
4942                        goto out_free_dmabuf;
4943                return;
4944        }
4945        /*
4946         * For FCoE Mode: fill in all the topology information we need and call
4947         * the READ_TOPOLOGY completion routine to continue without actually
4948         * sending the READ_TOPOLOGY mailbox command to the port.
4949         */
4950        /* Initialize completion status */
4951        mb = &pmb->u.mb;
4952        mb->mbxStatus = MBX_SUCCESS;
4953
4954        /* Parse port fault information field */
4955        lpfc_sli4_parse_latt_fault(phba, acqe_link);
4956
4957        /* Parse and translate link attention fields */
4958        la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
4959        la->eventTag = acqe_link->event_tag;
4960        bf_set(lpfc_mbx_read_top_att_type, la, att_type);
4961        bf_set(lpfc_mbx_read_top_link_spd, la,
4962               (bf_get(lpfc_acqe_link_speed, acqe_link)));
4963
4964        /* Fake the the following irrelvant fields */
4965        bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
4966        bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
4967        bf_set(lpfc_mbx_read_top_il, la, 0);
4968        bf_set(lpfc_mbx_read_top_pb, la, 0);
4969        bf_set(lpfc_mbx_read_top_fa, la, 0);
4970        bf_set(lpfc_mbx_read_top_mm, la, 0);
4971
4972        /* Invoke the lpfc_handle_latt mailbox command callback function */
4973        lpfc_mbx_cmpl_read_topology(phba, pmb);
4974
4975        return;
4976
4977out_free_dmabuf:
4978        kfree(mp);
4979out_free_pmb:
4980        mempool_free(pmb, phba->mbox_mem_pool);
4981}
4982
4983/**
4984 * lpfc_async_link_speed_to_read_top - Parse async evt link speed code to read
4985 * topology.
4986 * @phba: pointer to lpfc hba data structure.
4987 * @evt_code: asynchronous event code.
4988 * @speed_code: asynchronous event link speed code.
4989 *
4990 * This routine is to parse the giving SLI4 async event link speed code into
4991 * value of Read topology link speed.
4992 *
4993 * Return: link speed in terms of Read topology.
4994 **/
4995static uint8_t
4996lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code)
4997{
4998        uint8_t port_speed;
4999
5000        switch (speed_code) {
5001        case LPFC_FC_LA_SPEED_1G:
5002                port_speed = LPFC_LINK_SPEED_1GHZ;
5003                break;
5004        case LPFC_FC_LA_SPEED_2G:
5005                port_speed = LPFC_LINK_SPEED_2GHZ;
5006                break;
5007        case LPFC_FC_LA_SPEED_4G:
5008                port_speed = LPFC_LINK_SPEED_4GHZ;
5009                break;
5010        case LPFC_FC_LA_SPEED_8G:
5011                port_speed = LPFC_LINK_SPEED_8GHZ;
5012                break;
5013        case LPFC_FC_LA_SPEED_16G:
5014                port_speed = LPFC_LINK_SPEED_16GHZ;
5015                break;
5016        case LPFC_FC_LA_SPEED_32G:
5017                port_speed = LPFC_LINK_SPEED_32GHZ;
5018                break;
5019        case LPFC_FC_LA_SPEED_64G:
5020                port_speed = LPFC_LINK_SPEED_64GHZ;
5021                break;
5022        case LPFC_FC_LA_SPEED_128G:
5023                port_speed = LPFC_LINK_SPEED_128GHZ;
5024                break;
5025        case LPFC_FC_LA_SPEED_256G:
5026                port_speed = LPFC_LINK_SPEED_256GHZ;
5027                break;
5028        default:
5029                port_speed = 0;
5030                break;
5031        }
5032
5033        return port_speed;
5034}
5035
5036#define trunk_link_status(__idx)\
5037        bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
5038               ((phba->trunk_link.link##__idx.state == LPFC_LINK_UP) ?\
5039                "Link up" : "Link down") : "NA"
5040/* Did port __idx reported an error */
5041#define trunk_port_fault(__idx)\
5042        bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
5043               (port_fault & (1 << __idx) ? "YES" : "NO") : "NA"
5044
5045static void
5046lpfc_update_trunk_link_status(struct lpfc_hba *phba,
5047                              struct lpfc_acqe_fc_la *acqe_fc)
5048{
5049        uint8_t port_fault = bf_get(lpfc_acqe_fc_la_trunk_linkmask, acqe_fc);
5050        uint8_t err = bf_get(lpfc_acqe_fc_la_trunk_fault, acqe_fc);
5051
5052        phba->sli4_hba.link_state.speed =
5053                lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
5054                                bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5055
5056        phba->sli4_hba.link_state.logical_speed =
5057                                bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
5058        /* We got FC link speed, convert to fc_linkspeed (READ_TOPOLOGY) */
5059        phba->fc_linkspeed =
5060                 lpfc_async_link_speed_to_read_top(
5061                                phba,
5062                                bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5063
5064        if (bf_get(lpfc_acqe_fc_la_trunk_config_port0, acqe_fc)) {
5065                phba->trunk_link.link0.state =
5066                        bf_get(lpfc_acqe_fc_la_trunk_link_status_port0, acqe_fc)
5067                        ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5068                phba->trunk_link.link0.fault = port_fault & 0x1 ? err : 0;
5069        }
5070        if (bf_get(lpfc_acqe_fc_la_trunk_config_port1, acqe_fc)) {
5071                phba->trunk_link.link1.state =
5072                        bf_get(lpfc_acqe_fc_la_trunk_link_status_port1, acqe_fc)
5073                        ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5074                phba->trunk_link.link1.fault = port_fault & 0x2 ? err : 0;
5075        }
5076        if (bf_get(lpfc_acqe_fc_la_trunk_config_port2, acqe_fc)) {
5077                phba->trunk_link.link2.state =
5078                        bf_get(lpfc_acqe_fc_la_trunk_link_status_port2, acqe_fc)
5079                        ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5080                phba->trunk_link.link2.fault = port_fault & 0x4 ? err : 0;
5081        }
5082        if (bf_get(lpfc_acqe_fc_la_trunk_config_port3, acqe_fc)) {
5083                phba->trunk_link.link3.state =
5084                        bf_get(lpfc_acqe_fc_la_trunk_link_status_port3, acqe_fc)
5085                        ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5086                phba->trunk_link.link3.fault = port_fault & 0x8 ? err : 0;
5087        }
5088
5089        lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5090                        "2910 Async FC Trunking Event - Speed:%d\n"
5091                        "\tLogical speed:%d "
5092                        "port0: %s port1: %s port2: %s port3: %s\n",
5093                        phba->sli4_hba.link_state.speed,
5094                        phba->sli4_hba.link_state.logical_speed,
5095                        trunk_link_status(0), trunk_link_status(1),
5096                        trunk_link_status(2), trunk_link_status(3));
5097
5098        if (port_fault)
5099                lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5100                                "3202 trunk error:0x%x (%s) seen on port0:%s "
5101                                /*
5102                                 * SLI-4: We have only 0xA error codes
5103                                 * defined as of now. print an appropriate
5104                                 * message in case driver needs to be updated.
5105                                 */
5106                                "port1:%s port2:%s port3:%s\n", err, err > 0xA ?
5107                                "UNDEFINED. update driver." : trunk_errmsg[err],
5108                                trunk_port_fault(0), trunk_port_fault(1),
5109                                trunk_port_fault(2), trunk_port_fault(3));
5110}
5111
5112
5113/**
5114 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
5115 * @phba: pointer to lpfc hba data structure.
5116 * @acqe_fc: pointer to the async fc completion queue entry.
5117 *
5118 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
5119 * that the event was received and then issue a read_topology mailbox command so
5120 * that the rest of the driver will treat it the same as SLI3.
5121 **/
5122static void
5123lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
5124{
5125        struct lpfc_dmabuf *mp;
5126        LPFC_MBOXQ_t *pmb;
5127        MAILBOX_t *mb;
5128        struct lpfc_mbx_read_top *la;
5129        int rc;
5130
5131        if (bf_get(lpfc_trailer_type, acqe_fc) !=
5132            LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
5133                lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5134                                "2895 Non FC link Event detected.(%d)\n",
5135                                bf_get(lpfc_trailer_type, acqe_fc));
5136                return;
5137        }
5138
5139        if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
5140            LPFC_FC_LA_TYPE_TRUNKING_EVENT) {
5141                lpfc_update_trunk_link_status(phba, acqe_fc);
5142                return;
5143        }
5144
5145        /* Keep the link status for extra SLI4 state machine reference */
5146        phba->sli4_hba.link_state.speed =
5147                        lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
5148                                bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5149        phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
5150        phba->sli4_hba.link_state.topology =
5151                                bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
5152        phba->sli4_hba.link_state.status =
5153                                bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
5154        phba->sli4_hba.link_state.type =
5155                                bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
5156        phba->sli4_hba.link_state.number =
5157                                bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
5158        phba->sli4_hba.link_state.fault =
5159                                bf_get(lpfc_acqe_link_fault, acqe_fc);
5160
5161        if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
5162            LPFC_FC_LA_TYPE_LINK_DOWN)
5163                phba->sli4_hba.link_state.logical_speed = 0;
5164        else if (!phba->sli4_hba.conf_trunk)
5165                phba->sli4_hba.link_state.logical_speed =
5166                                bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
5167
5168        lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5169                        "2896 Async FC event - Speed:%dGBaud Topology:x%x "
5170                        "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
5171                        "%dMbps Fault:%d\n",
5172                        phba->sli4_hba.link_state.speed,
5173                        phba->sli4_hba.link_state.topology,
5174                        phba->sli4_hba.link_state.status,
5175                        phba->sli4_hba.link_state.type,
5176                        phba->sli4_hba.link_state.number,
5177                        phba->sli4_hba.link_state.logical_speed,
5178                        phba->sli4_hba.link_state.fault);
5179        pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5180        if (!pmb) {
5181                lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5182                                "2897 The mboxq allocation failed\n");
5183                return;
5184        }
5185        mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5186        if (!mp) {
5187                lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5188                                "2898 The lpfc_dmabuf allocation failed\n");
5189                goto out_free_pmb;
5190        }
5191        mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
5192        if (!mp->virt) {
5193                lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5194                                "2899 The mbuf allocation failed\n");
5195                goto out_free_dmabuf;
5196        }
5197
5198        /* Cleanup any outstanding ELS commands */
5199        lpfc_els_flush_all_cmd(phba);
5200
5201        /* Block ELS IOCBs until we have done process link event */
5202        phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
5203
5204        /* Update link event statistics */
5205        phba->sli.slistat.link_event++;
5206
5207        /* Create lpfc_handle_latt mailbox command from link ACQE */
5208        lpfc_read_topology(phba, pmb, mp);
5209        pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
5210        pmb->vport = phba->pport;
5211
5212        if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
5213                phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
5214
5215                switch (phba->sli4_hba.link_state.status) {
5216                case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
5217                        phba->link_flag |= LS_MDS_LINK_DOWN;
5218                        break;
5219                case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
5220                        phba->link_flag |= LS_MDS_LOOPBACK;
5221                        break;
5222                default:
5223                        break;
5224                }
5225
5226                /* Initialize completion status */
5227                mb = &pmb->u.mb;
5228                mb->mbxStatus = MBX_SUCCESS;
5229
5230                /* Parse port fault information field */
5231                lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc);
5232
5233                /* Parse and translate link attention fields */
5234                la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
5235                la->eventTag = acqe_fc->event_tag;
5236
5237                if (phba->sli4_hba.link_state.status ==
5238                    LPFC_FC_LA_TYPE_UNEXP_WWPN) {
5239                        bf_set(lpfc_mbx_read_top_att_type, la,
5240                               LPFC_FC_LA_TYPE_UNEXP_WWPN);
5241                } else {
5242                        bf_set(lpfc_mbx_read_top_att_type, la,
5243                               LPFC_FC_LA_TYPE_LINK_DOWN);
5244                }
5245                /* Invoke the mailbox command callback function */
5246                lpfc_mbx_cmpl_read_topology(phba, pmb);
5247
5248                return;
5249        }
5250
5251        rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
5252        if (rc == MBX_NOT_FINISHED)
5253                goto out_free_dmabuf;
5254        return;
5255
5256out_free_dmabuf:
5257        kfree(mp);
5258out_free_pmb:
5259        mempool_free(pmb, phba->mbox_mem_pool);
5260}
5261
5262/**
5263 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
5264 * @phba: pointer to lpfc hba data structure.
5265 * @acqe_fc: pointer to the async SLI completion queue entry.
5266 *
5267 * This routine is to handle the SLI4 asynchronous SLI events.
5268 **/
5269static void
5270lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
5271{
5272        char port_name;
5273        char message[128];
5274        uint8_t status;
5275        uint8_t evt_type;
5276        uint8_t operational = 0;
5277        struct temp_event temp_event_data;
5278        struct lpfc_acqe_misconfigured_event *misconfigured;
5279        struct Scsi_Host  *shost;
5280        struct lpfc_vport **vports;
5281        int rc, i;
5282
5283        evt_type = bf_get(lpfc_trailer_type, acqe_sli);
5284
5285        lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5286                        "2901 Async SLI event - Event Data1:x%08x Event Data2:"
5287                        "x%08x SLI Event Type:%d\n",
5288                        acqe_sli->event_data1, acqe_sli->event_data2,
5289                        evt_type);
5290
5291        port_name = phba->Port[0];
5292        if (port_name == 0x00)
5293                port_name = '?'; /* get port name is empty */
5294
5295        switch (evt_type) {
5296        case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
5297                temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
5298                temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
5299                temp_event_data.data = (uint32_t)acqe_sli->event_data1;
5300
5301                lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5302                                "3190 Over Temperature:%d Celsius- Port Name %c\n",
5303                                acqe_sli->event_data1, port_name);
5304
5305                phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
5306                shost = lpfc_shost_from_vport(phba->pport);
5307                fc_host_post_vendor_event(shost, fc_get_event_number(),
5308                                          sizeof(temp_event_data),
5309                                          (char *)&temp_event_data,
5310                                          SCSI_NL_VID_TYPE_PCI
5311                                          | PCI_VENDOR_ID_EMULEX);
5312                break;
5313        case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
5314                temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
5315                temp_event_data.event_code = LPFC_NORMAL_TEMP;
5316                temp_event_data.data = (uint32_t)acqe_sli->event_data1;
5317
5318                lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5319                                "3191 Normal Temperature:%d Celsius - Port Name %c\n",
5320                                acqe_sli->event_data1, port_name);
5321
5322                shost = lpfc_shost_from_vport(phba->pport);
5323                fc_host_post_vendor_event(shost, fc_get_event_number(),
5324                                          sizeof(temp_event_data),
5325                                          (char *)&temp_event_data,
5326                                          SCSI_NL_VID_TYPE_PCI
5327                                          | PCI_VENDOR_ID_EMULEX);
5328                break;
5329        case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
5330                misconfigured = (struct lpfc_acqe_misconfigured_event *)
5331                                        &acqe_sli->event_data1;
5332
5333                /* fetch the status for this port */
5334                switch (phba->sli4_hba.lnk_info.lnk_no) {
5335                case LPFC_LINK_NUMBER_0:
5336                        status = bf_get(lpfc_sli_misconfigured_port0_state,
5337                                        &misconfigured->theEvent);
5338                        operational = bf_get(lpfc_sli_misconfigured_port0_op,
5339                                        &misconfigured->theEvent);
5340                        break;
5341                case LPFC_LINK_NUMBER_1:
5342                        status = bf_get(lpfc_sli_misconfigured_port1_state,
5343                                        &misconfigured->theEvent);
5344                        operational = bf_get(lpfc_sli_misconfigured_port1_op,
5345                                        &misconfigured->theEvent);
5346                        break;
5347                case LPFC_LINK_NUMBER_2:
5348                        status = bf_get(lpfc_sli_misconfigured_port2_state,
5349                                        &misconfigured->theEvent);
5350                        operational = bf_get(lpfc_sli_misconfigured_port2_op,
5351                                        &misconfigured->theEvent);
5352                        break;
5353                case LPFC_LINK_NUMBER_3:
5354                        status = bf_get(lpfc_sli_misconfigured_port3_state,
5355                                        &misconfigured->theEvent);
5356                        operational = bf_get(lpfc_sli_misconfigured_port3_op,
5357                                        &misconfigured->theEvent);
5358                        break;
5359                default:
5360                        lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5361                                        "3296 "
5362                                        "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
5363                                        "event: Invalid link %d",
5364                                        phba->sli4_hba.lnk_info.lnk_no);
5365                        return;
5366                }
5367
5368                /* Skip if optic state unchanged */
5369                if (phba->sli4_hba.lnk_info.optic_state == status)
5370                        return;
5371
5372                switch (status) {
5373                case LPFC_SLI_EVENT_STATUS_VALID:
5374                        sprintf(message, "Physical Link is functional");
5375                        break;
5376                case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
5377                        sprintf(message, "Optics faulted/incorrectly "
5378                                "installed/not installed - Reseat optics, "
5379                                "if issue not resolved, replace.");
5380                        break;
5381                case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
5382                        sprintf(message,
5383                                "Optics of two types installed - Remove one "
5384                                "optic or install matching pair of optics.");
5385                        break;
5386                case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
5387                        sprintf(message, "Incompatible optics - Replace with "
5388                                "compatible optics for card to function.");
5389                        break;
5390                case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
5391                        sprintf(message, "Unqualified optics - Replace with "
5392                                "Avago optics for Warranty and Technical "
5393                                "Support - Link is%s operational",
5394                                (operational) ? " not" : "");
5395                        break;
5396                case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
5397                        sprintf(message, "Uncertified optics - Replace with "
5398                                "Avago-certified optics to enable link "
5399                                "operation - Link is%s operational",
5400                                (operational) ? " not" : "");
5401                        break;
5402                default:
5403                        /* firmware is reporting a status we don't know about */
5404                        sprintf(message, "Unknown event status x%02x", status);
5405                        break;
5406                }
5407
5408                /* Issue READ_CONFIG mbox command to refresh supported speeds */
5409                rc = lpfc_sli4_read_config(phba);
5410                if (rc) {
5411                        phba->lmt = 0;
5412                        lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5413                                        "3194 Unable to retrieve supported "
5414                                        "speeds, rc = 0x%x\n", rc);
5415                }
5416                vports = lpfc_create_vport_work_array(phba);
5417                if (vports != NULL) {
5418                        for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5419                                        i++) {
5420                                shost = lpfc_shost_from_vport(vports[i]);
5421                                lpfc_host_supported_speeds_set(shost);
5422                        }
5423                }
5424                lpfc_destroy_vport_work_array(phba, vports);
5425
5426                phba->sli4_hba.lnk_info.optic_state = status;
5427                lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5428                                "3176 Port Name %c %s\n", port_name, message);
5429                break;
5430        case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
5431                lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5432                                "3192 Remote DPort Test Initiated - "
5433                                "Event Data1:x%08x Event Data2: x%08x\n",
5434                                acqe_sli->event_data1, acqe_sli->event_data2);
5435                break;
5436        default:
5437                lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5438                                "3193 Async SLI event - Event Data1:x%08x Event Data2:"
5439                                "x%08x SLI Event Type:%d\n",
5440                                acqe_sli->event_data1, acqe_sli->event_data2,
5441                                evt_type);
5442                break;
5443        }
5444}
5445
5446/**
5447 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
5448 * @vport: pointer to vport data structure.
5449 *
5450 * This routine is to perform Clear Virtual Link (CVL) on a vport in
5451 * response to a CVL event.
5452 *
5453 * Return the pointer to the ndlp with the vport if successful, otherwise
5454 * return NULL.
5455 **/
5456static struct lpfc_nodelist *
5457lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
5458{
5459        struct lpfc_nodelist *ndlp;
5460        struct Scsi_Host *shost;
5461        struct lpfc_hba *phba;
5462
5463        if (!vport)
5464                return NULL;
5465        phba = vport->phba;
5466        if (!phba)
5467                return NULL;
5468        ndlp = lpfc_findnode_did(vport, Fabric_DID);
5469        if (!ndlp) {
5470                /* Cannot find existing Fabric ndlp, so allocate a new one */
5471                ndlp = lpfc_nlp_init(vport, Fabric_DID);
5472                if (!ndlp)
5473                        return 0;
5474                /* Set the node type */
5475                ndlp->nlp_type |= NLP_FABRIC;
5476                /* Put ndlp onto node list */
5477                lpfc_enqueue_node(vport, ndlp);
5478        } else if (!NLP_CHK_NODE_ACT(ndlp)) {
5479                /* re-setup ndlp without removing from node list */
5480                ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
5481                if (!ndlp)
5482                        return 0;
5483        }
5484        if ((phba->pport->port_state < LPFC_FLOGI) &&
5485                (phba->pport->port_state != LPFC_VPORT_FAILED))
5486                return NULL;
5487        /* If virtual link is not yet instantiated ignore CVL */
5488        if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
5489                && (vport->port_state != LPFC_VPORT_FAILED))
5490                return NULL;
5491        shost = lpfc_shost_from_vport(vport);
5492        if (!shost)
5493                return NULL;
5494        lpfc_linkdown_port(vport);
5495        lpfc_cleanup_pending_mbox(vport);
5496        spin_lock_irq(shost->host_lock);
5497        vport->fc_flag |= FC_VPORT_CVL_RCVD;
5498        spin_unlock_irq(shost->host_lock);
5499
5500        return ndlp;
5501}
5502
5503/**
5504 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
5505 * @vport: pointer to lpfc hba data structure.
5506 *
5507 * This routine is to perform Clear Virtual Link (CVL) on all vports in
5508 * response to a FCF dead event.
5509 **/
5510static void
5511lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
5512{
5513        struct lpfc_vport **vports;
5514        int i;
5515
5516        vports = lpfc_create_vport_work_array(phba);
5517        if (vports)
5518                for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
5519                        lpfc_sli4_perform_vport_cvl(vports[i]);
5520        lpfc_destroy_vport_work_array(phba, vports);
5521}
5522
5523/**
5524 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
5525 * @phba: pointer to lpfc hba data structure.
5526 * @acqe_link: pointer to the async fcoe completion queue entry.
5527 *
5528 * This routine is to handle the SLI4 asynchronous fcoe event.
5529 **/
5530static void
5531lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
5532                        struct lpfc_acqe_fip *acqe_fip)
5533{
5534        uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
5535        int rc;
5536        struct lpfc_vport *vport;
5537        struct lpfc_nodelist *ndlp;
5538        struct Scsi_Host  *shost;
5539        int active_vlink_present;
5540        struct lpfc_vport **vports;
5541        int i;
5542
5543        phba->fc_eventTag = acqe_fip->event_tag;
5544        phba->fcoe_eventtag = acqe_fip->event_tag;
5545        switch (event_type) {
5546        case LPFC_FIP_EVENT_TYPE_NEW_FCF:
5547        case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
5548                if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
5549                        lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5550                                        LOG_DISCOVERY,
5551                                        "2546 New FCF event, evt_tag:x%x, "
5552                                        "index:x%x\n",
5553                                        acqe_fip->event_tag,
5554                                        acqe_fip->index);
5555                else
5556                        lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
5557                                        LOG_DISCOVERY,
5558                                        "2788 FCF param modified event, "
5559                                        "evt_tag:x%x, index:x%x\n",
5560                                        acqe_fip->event_tag,
5561                                        acqe_fip->index);
5562                if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5563                        /*
5564                         * During period of FCF discovery, read the FCF
5565                         * table record indexed by the event to update
5566                         * FCF roundrobin failover eligible FCF bmask.
5567                         */
5568                        lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5569                                        LOG_DISCOVERY,
5570                                        "2779 Read FCF (x%x) for updating "
5571                                        "roundrobin FCF failover bmask\n",
5572                                        acqe_fip->index);
5573                        rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
5574                }
5575
5576                /* If the FCF discovery is in progress, do nothing. */
5577                spin_lock_irq(&phba->hbalock);
5578                if (phba->hba_flag & FCF_TS_INPROG) {
5579                        spin_unlock_irq(&phba->hbalock);
5580                        break;
5581                }
5582                /* If fast FCF failover rescan event is pending, do nothing */
5583                if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
5584                        spin_unlock_irq(&phba->hbalock);
5585                        break;
5586                }
5587
5588                /* If the FCF has been in discovered state, do nothing. */
5589                if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
5590                        spin_unlock_irq(&phba->hbalock);
5591                        break;
5592                }
5593                spin_unlock_irq(&phba->hbalock);
5594
5595                /* Otherwise, scan the entire FCF table and re-discover SAN */
5596                lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5597                                "2770 Start FCF table scan per async FCF "
5598                                "event, evt_tag:x%x, index:x%x\n",
5599                                acqe_fip->event_tag, acqe_fip->index);
5600                rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
5601                                                     LPFC_FCOE_FCF_GET_FIRST);
5602                if (rc)
5603                        lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5604                                        "2547 Issue FCF scan read FCF mailbox "
5605                                        "command failed (x%x)\n", rc);
5606                break;
5607
5608        case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
5609                lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5610                        "2548 FCF Table full count 0x%x tag 0x%x\n",
5611                        bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
5612                        acqe_fip->event_tag);
5613                break;
5614
5615        case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
5616                phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5617                lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5618                        "2549 FCF (x%x) disconnected from network, "
5619                        "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
5620                /*
5621                 * If we are in the middle of FCF failover process, clear
5622                 * the corresponding FCF bit in the roundrobin bitmap.
5623                 */
5624                spin_lock_irq(&phba->hbalock);
5625                if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
5626                    (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
5627                        spin_unlock_irq(&phba->hbalock);
5628                        /* Update FLOGI FCF failover eligible FCF bmask */
5629                        lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
5630                        break;
5631                }
5632                spin_unlock_irq(&phba->hbalock);
5633
5634                /* If the event is not for currently used fcf do nothing */
5635                if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
5636                        break;
5637
5638                /*
5639                 * Otherwise, request the port to rediscover the entire FCF
5640                 * table for a fast recovery from case that the current FCF
5641                 * is no longer valid as we are not in the middle of FCF
5642                 * failover process already.
5643                 */
5644                spin_lock_irq(&phba->hbalock);
5645                /* Mark the fast failover process in progress */
5646                phba->fcf.fcf_flag |= FCF_DEAD_DISC;
5647                spin_unlock_irq(&phba->hbalock);
5648
5649                lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5650                                "2771 Start FCF fast failover process due to "
5651                                "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
5652                                "\n", acqe_fip->event_tag, acqe_fip->index);
5653                rc = lpfc_sli4_redisc_fcf_table(phba);
5654                if (rc) {
5655                        lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5656                                        LOG_DISCOVERY,
5657                                        "2772 Issue FCF rediscover mailbox "
5658                                        "command failed, fail through to FCF "
5659                                        "dead event\n");
5660                        spin_lock_irq(&phba->hbalock);
5661                        phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
5662                        spin_unlock_irq(&phba->hbalock);
5663                        /*
5664                         * Last resort will fail over by treating this
5665                         * as a link down to FCF registration.
5666                         */
5667                        lpfc_sli4_fcf_dead_failthrough(phba);
5668                } else {
5669                        /* Reset FCF roundrobin bmask for new discovery */
5670                        lpfc_sli4_clear_fcf_rr_bmask(phba);
5671                        /*
5672                         * Handling fast FCF failover to a DEAD FCF event is
5673                         * considered equalivant to receiving CVL to all vports.
5674                         */
5675                        lpfc_sli4_perform_all_vport_cvl(phba);
5676                }
5677                break;
5678        case LPFC_FIP_EVENT_TYPE_CVL:
5679                phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5680                lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5681                        "2718 Clear Virtual Link Received for VPI 0x%x"
5682                        " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
5683
5684                vport = lpfc_find_vport_by_vpid(phba,
5685                                                acqe_fip->index);
5686                ndlp = lpfc_sli4_perform_vport_cvl(vport);
5687                if (!ndlp)
5688                        break;
5689                active_vlink_present = 0;
5690
5691                vports = lpfc_create_vport_work_array(phba);
5692                if (vports) {
5693                        for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5694                                        i++) {
5695                                if ((!(vports[i]->fc_flag &
5696                                        FC_VPORT_CVL_RCVD)) &&
5697                                        (vports[i]->port_state > LPFC_FDISC)) {
5698                                        active_vlink_present = 1;
5699                                        break;
5700                                }
5701                        }
5702                        lpfc_destroy_vport_work_array(phba, vports);
5703                }
5704
5705                /*
5706                 * Don't re-instantiate if vport is marked for deletion.
5707                 * If we are here first then vport_delete is going to wait
5708                 * for discovery to complete.
5709                 */
5710                if (!(vport->load_flag & FC_UNLOADING) &&
5711                                        active_vlink_present) {
5712                        /*
5713                         * If there are other active VLinks present,
5714                         * re-instantiate the Vlink using FDISC.
5715                         */
5716                        mod_timer(&ndlp->nlp_delayfunc,
5717                                  jiffies + msecs_to_jiffies(1000));
5718                        shost = lpfc_shost_from_vport(vport);
5719                        spin_lock_irq(shost->host_lock);
5720                        ndlp->nlp_flag |= NLP_DELAY_TMO;
5721                        spin_unlock_irq(shost->host_lock);
5722                        ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
5723                        vport->port_state = LPFC_FDISC;
5724                } else {
5725                        /*
5726                         * Otherwise, we request port to rediscover
5727                         * the entire FCF table for a fast recovery
5728                         * from possible case that the current FCF
5729                         * is no longer valid if we are not already
5730                         * in the FCF failover process.
5731                         */
5732                        spin_lock_irq(&phba->hbalock);
5733                        if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5734                                spin_unlock_irq(&phba->hbalock);
5735                                break;
5736                        }
5737                        /* Mark the fast failover process in progress */
5738                        phba->fcf.fcf_flag |= FCF_ACVL_DISC;
5739                        spin_unlock_irq(&phba->hbalock);
5740                        lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5741                                        LOG_DISCOVERY,
5742                                        "2773 Start FCF failover per CVL, "
5743                                        "evt_tag:x%x\n", acqe_fip->event_tag);
5744                        rc = lpfc_sli4_redisc_fcf_table(phba);
5745                        if (rc) {
5746                                lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5747                                                LOG_DISCOVERY,
5748                                                "2774 Issue FCF rediscover "
5749                                                "mailbox command failed, "
5750                                                "through to CVL event\n");
5751                                spin_lock_irq(&phba->hbalock);
5752                                phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
5753                                spin_unlock_irq(&phba->hbalock);
5754                                /*
5755                                 * Last resort will be re-try on the
5756                                 * the current registered FCF entry.
5757                                 */
5758                                lpfc_retry_pport_discovery(phba);
5759                        } else
5760                                /*
5761                                 * Reset FCF roundrobin bmask for new
5762                                 * discovery.
5763                                 */
5764                                lpfc_sli4_clear_fcf_rr_bmask(phba);
5765                }
5766                break;
5767        default:
5768                lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5769                        "0288 Unknown FCoE event type 0x%x event tag "
5770                        "0x%x\n", event_type, acqe_fip->event_tag);
5771                break;
5772        }
5773}
5774
5775/**
5776 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
5777 * @phba: pointer to lpfc hba data structure.
5778 * @acqe_link: pointer to the async dcbx completion queue entry.
5779 *
5780 * This routine is to handle the SLI4 asynchronous dcbx event.
5781 **/
5782static void
5783lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
5784                         struct lpfc_acqe_dcbx *acqe_dcbx)
5785{
5786        phba->fc_eventTag = acqe_dcbx->event_tag;
5787        lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5788                        "0290 The SLI4 DCBX asynchronous event is not "
5789                        "handled yet\n");
5790}
5791
5792/**
5793 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
5794 * @phba: pointer to lpfc hba data structure.
5795 * @acqe_link: pointer to the async grp5 completion queue entry.
5796 *
5797 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
5798 * is an asynchronous notified of a logical link speed change.  The Port
5799 * reports the logical link speed in units of 10Mbps.
5800 **/
5801static void
5802lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
5803                         struct lpfc_acqe_grp5 *acqe_grp5)
5804{
5805        uint16_t prev_ll_spd;
5806
5807        phba->fc_eventTag = acqe_grp5->event_tag;
5808        phba->fcoe_eventtag = acqe_grp5->event_tag;
5809        prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
5810        phba->sli4_hba.link_state.logical_speed =
5811                (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
5812        lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5813                        "2789 GRP5 Async Event: Updating logical link speed "
5814                        "from %dMbps to %dMbps\n", prev_ll_spd,
5815                        phba->sli4_hba.link_state.logical_speed);
5816}
5817
5818/**
5819 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
5820 * @phba: pointer to lpfc hba data structure.
5821 *
5822 * This routine is invoked by the worker thread to process all the pending
5823 * SLI4 asynchronous events.
5824 **/
5825void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
5826{
5827        struct lpfc_cq_event *cq_event;
5828
5829        /* First, declare the async event has been handled */
5830        spin_lock_irq(&phba->hbalock);
5831        phba->hba_flag &= ~ASYNC_EVENT;
5832        spin_unlock_irq(&phba->hbalock);
5833        /* Now, handle all the async events */
5834        while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
5835                /* Get the first event from the head of the event queue */
5836                spin_lock_irq(&phba->hbalock);
5837                list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
5838                                 cq_event, struct lpfc_cq_event, list);
5839                spin_unlock_irq(&phba->hbalock);
5840                /* Process the asynchronous event */
5841                switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
5842                case LPFC_TRAILER_CODE_LINK:
5843                        lpfc_sli4_async_link_evt(phba,
5844                                                 &cq_event->cqe.acqe_link);
5845                        break;
5846                case LPFC_TRAILER_CODE_FCOE:
5847                        lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
5848                        break;
5849                case LPFC_TRAILER_CODE_DCBX:
5850                        lpfc_sli4_async_dcbx_evt(phba,
5851                                                 &cq_event->cqe.acqe_dcbx);
5852                        break;
5853                case LPFC_TRAILER_CODE_GRP5:
5854                        lpfc_sli4_async_grp5_evt(phba,
5855                                                 &cq_event->cqe.acqe_grp5);
5856                        break;
5857                case LPFC_TRAILER_CODE_FC:
5858                        lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
5859                        break;
5860                case LPFC_TRAILER_CODE_SLI:
5861                        lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
5862                        break;
5863                default:
5864                        lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5865                                        "1804 Invalid asynchrous event code: "
5866                                        "x%x\n", bf_get(lpfc_trailer_code,
5867                                        &cq_event->cqe.mcqe_cmpl));
5868                        break;
5869                }
5870                /* Free the completion event processed to the free pool */
5871                lpfc_sli4_cq_event_release(phba, cq_event);
5872        }
5873}
5874
5875/**
5876 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
5877 * @phba: pointer to lpfc hba data structure.
5878 *
5879 * This routine is invoked by the worker thread to process FCF table
5880 * rediscovery pending completion event.
5881 **/
5882void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
5883{
5884        int rc;
5885
5886        spin_lock_irq(&phba->hbalock);
5887        /* Clear FCF rediscovery timeout event */
5888        phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
5889        /* Clear driver fast failover FCF record flag */
5890        phba->fcf.failover_rec.flag = 0;
5891        /* Set state for FCF fast failover */
5892        phba->fcf.fcf_flag |= FCF_REDISC_FOV;
5893        spin_unlock_irq(&phba->hbalock);
5894
5895        /* Scan FCF table from the first entry to re-discover SAN */
5896        lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5897                        "2777 Start post-quiescent FCF table scan\n");
5898        rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
5899        if (rc)
5900                lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5901                                "2747 Issue FCF scan read FCF mailbox "
5902                                "command failed 0x%x\n", rc);
5903}
5904
5905/**
5906 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
5907 * @phba: pointer to lpfc hba data structure.
5908 * @dev_grp: The HBA PCI-Device group number.
5909 *
5910 * This routine is invoked to set up the per HBA PCI-Device group function
5911 * API jump table entries.
5912 *
5913 * Return: 0 if success, otherwise -ENODEV
5914 **/
5915int
5916lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5917{
5918        int rc;
5919
5920        /* Set up lpfc PCI-device group */
5921        phba->pci_dev_grp = dev_grp;
5922
5923        /* The LPFC_PCI_DEV_OC uses SLI4 */
5924        if (dev_grp == LPFC_PCI_DEV_OC)
5925                phba->sli_rev = LPFC_SLI_REV4;
5926
5927        /* Set up device INIT API function jump table */
5928        rc = lpfc_init_api_table_setup(phba, dev_grp);
5929        if (rc)
5930                return -ENODEV;
5931        /* Set up SCSI API function jump table */
5932        rc = lpfc_scsi_api_table_setup(phba, dev_grp);
5933        if (rc)
5934                return -ENODEV;
5935        /* Set up SLI API function jump table */
5936        rc = lpfc_sli_api_table_setup(phba, dev_grp);
5937        if (rc)
5938                return -ENODEV;
5939        /* Set up MBOX API function jump table */
5940        rc = lpfc_mbox_api_table_setup(phba, dev_grp);
5941        if (rc)
5942                return -ENODEV;
5943
5944        return 0;
5945}
5946
5947/**
5948 * lpfc_log_intr_mode - Log the active interrupt mode
5949 * @phba: pointer to lpfc hba data structure.
5950 * @intr_mode: active interrupt mode adopted.
5951 *
5952 * This routine it invoked to log the currently used active interrupt mode
5953 * to the device.
5954 **/
5955static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5956{
5957        switch (intr_mode) {
5958        case 0:
5959                lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5960                                "0470 Enable INTx interrupt mode.\n");
5961                break;
5962        case 1:
5963                lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5964                                "0481 Enabled MSI interrupt mode.\n");
5965                break;
5966        case 2:
5967                lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5968                                "0480 Enabled MSI-X interrupt mode.\n");
5969                break;
5970        default:
5971                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5972                                "0482 Illegal interrupt mode.\n");
5973                break;
5974        }
5975        return;
5976}
5977
5978/**
5979 * lpfc_enable_pci_dev - Enable a generic PCI device.
5980 * @phba: pointer to lpfc hba data structure.
5981 *
5982 * This routine is invoked to enable the PCI device that is common to all
5983 * PCI devices.
5984 *
5985 * Return codes
5986 *      0 - successful
5987 *      other values - error
5988 **/
5989static int
5990lpfc_enable_pci_dev(struct lpfc_hba *phba)
5991{
5992        struct pci_dev *pdev;
5993
5994        /* Obtain PCI device reference */
5995        if (!phba->pcidev)
5996                goto out_error;
5997        else
5998                pdev = phba->pcidev;
5999        /* Enable PCI device */
6000        if (pci_enable_device_mem(pdev))
6001                goto out_error;
6002        /* Request PCI resource for the device */
6003        if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
6004                goto out_disable_device;
6005        /* Set up device as PCI master and save state for EEH */
6006        pci_set_master(pdev);
6007        pci_try_set_mwi(pdev);
6008        pci_save_state(pdev);
6009
6010        /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
6011        if (pci_is_pcie(pdev))
6012                pdev->needs_freset = 1;
6013
6014        return 0;
6015
6016out_disable_device:
6017        pci_disable_device(pdev);
6018out_error:
6019        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6020                        "1401 Failed to enable pci device\n");
6021        return -ENODEV;
6022}
6023
6024/**
6025 * lpfc_disable_pci_dev - Disable a generic PCI device.
6026 * @phba: pointer to lpfc hba data structure.
6027 *
6028 * This routine is invoked to disable the PCI device that is common to all
6029 * PCI devices.
6030 **/
6031static void
6032lpfc_disable_pci_dev(struct lpfc_hba *phba)
6033{
6034        struct pci_dev *pdev;
6035
6036        /* Obtain PCI device reference */
6037        if (!phba->pcidev)
6038                return;
6039        else
6040                pdev = phba->pcidev;
6041        /* Release PCI resource and disable PCI device */
6042        pci_release_mem_regions(pdev);
6043        pci_disable_device(pdev);
6044
6045        return;
6046}
6047
6048/**
6049 * lpfc_reset_hba - Reset a hba
6050 * @phba: pointer to lpfc hba data structure.
6051 *
6052 * This routine is invoked to reset a hba device. It brings the HBA
6053 * offline, performs a board restart, and then brings the board back
6054 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
6055 * on outstanding mailbox commands.
6056 **/
6057void
6058lpfc_reset_hba(struct lpfc_hba *phba)
6059{
6060        /* If resets are disabled then set error state and return. */
6061        if (!phba->cfg_enable_hba_reset) {
6062                phba->link_state = LPFC_HBA_ERROR;
6063                return;
6064        }
6065        if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
6066                lpfc_offline_prep(phba, LPFC_MBX_WAIT);
6067        else
6068                lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
6069        lpfc_offline(phba);
6070        lpfc_sli_brdrestart(phba);
6071        lpfc_online(phba);
6072        lpfc_unblock_mgmt_io(phba);
6073}
6074
6075/**
6076 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
6077 * @phba: pointer to lpfc hba data structure.
6078 *
6079 * This function enables the PCI SR-IOV virtual functions to a physical
6080 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
6081 * enable the number of virtual functions to the physical function. As
6082 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
6083 * API call does not considered as an error condition for most of the device.
6084 **/
6085uint16_t
6086lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
6087{
6088        struct pci_dev *pdev = phba->pcidev;
6089        uint16_t nr_virtfn;
6090        int pos;
6091
6092        pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
6093        if (pos == 0)
6094                return 0;
6095
6096        pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
6097        return nr_virtfn;
6098}
6099
6100/**
6101 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
6102 * @phba: pointer to lpfc hba data structure.
6103 * @nr_vfn: number of virtual functions to be enabled.
6104 *
6105 * This function enables the PCI SR-IOV virtual functions to a physical
6106 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
6107 * enable the number of virtual functions to the physical function. As
6108 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
6109 * API call does not considered as an error condition for most of the device.
6110 **/
6111int
6112lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
6113{
6114        struct pci_dev *pdev = phba->pcidev;
6115        uint16_t max_nr_vfn;
6116        int rc;
6117
6118        max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
6119        if (nr_vfn > max_nr_vfn) {
6120                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6121                                "3057 Requested vfs (%d) greater than "
6122                                "supported vfs (%d)", nr_vfn, max_nr_vfn);
6123                return -EINVAL;
6124        }
6125
6126        rc = pci_enable_sriov(pdev, nr_vfn);
6127        if (rc) {
6128                lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6129                                "2806 Failed to enable sriov on this device "
6130                                "with vfn number nr_vf:%d, rc:%d\n",
6131                                nr_vfn, rc);
6132        } else
6133                lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6134                                "2807 Successful enable sriov on this device "
6135                                "with vfn number nr_vf:%d\n", nr_vfn);
6136        return rc;
6137}
6138
6139/**
6140 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
6141 * @phba: pointer to lpfc hba data structure.
6142 *
6143 * This routine is invoked to set up the driver internal resources before the
6144 * device specific resource setup to support the HBA device it attached to.
6145 *
6146 * Return codes
6147 *      0 - successful
6148 *      other values - error
6149 **/
6150static int
6151lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
6152{
6153        struct lpfc_sli *psli = &phba->sli;
6154
6155        /*
6156         * Driver resources common to all SLI revisions
6157         */
6158        atomic_set(&phba->fast_event_count, 0);
6159        spin_lock_init(&phba->hbalock);
6160
6161        /* Initialize ndlp management spinlock */
6162        spin_lock_init(&phba->ndlp_lock);
6163
6164        /* Initialize port_list spinlock */
6165        spin_lock_init(&phba->port_list_lock);
6166        INIT_LIST_HEAD(&phba->port_list);
6167
6168        INIT_LIST_HEAD(&phba->work_list);
6169        init_waitqueue_head(&phba->wait_4_mlo_m_q);
6170
6171        /* Initialize the wait queue head for the kernel thread */
6172        init_waitqueue_head(&phba->work_waitq);
6173
6174        lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6175                        "1403 Protocols supported %s %s %s\n",
6176                        ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
6177                                "SCSI" : " "),
6178                        ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
6179                                "NVME" : " "),
6180                        (phba->nvmet_support ? "NVMET" : " "));
6181
6182        /* Initialize the IO buffer list used by driver for SLI3 SCSI */
6183        spin_lock_init(&phba->scsi_buf_list_get_lock);
6184        INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
6185        spin_lock_init(&phba->scsi_buf_list_put_lock);
6186        INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
6187
6188        /* Initialize the fabric iocb list */
6189        INIT_LIST_HEAD(&phba->fabric_iocb_list);
6190
6191        /* Initialize list to save ELS buffers */
6192        INIT_LIST_HEAD(&phba->elsbuf);
6193
6194        /* Initialize FCF connection rec list */
6195        INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
6196
6197        /* Initialize OAS configuration list */
6198        spin_lock_init(&phba->devicelock);
6199        INIT_LIST_HEAD(&phba->luns);
6200
6201        /* MBOX heartbeat timer */
6202        timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
6203        /* Fabric block timer */
6204        timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
6205        /* EA polling mode timer */
6206        timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
6207        /* Heartbeat timer */
6208        timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
6209
6210        INIT_DELAYED_WORK(&phba->eq_delay_work, lpfc_hb_eq_delay_work);
6211
6212        return 0;
6213}
6214
6215/**
6216 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
6217 * @phba: pointer to lpfc hba data structure.
6218 *
6219 * This routine is invoked to set up the driver internal resources specific to
6220 * support the SLI-3 HBA device it attached to.
6221 *
6222 * Return codes
6223 * 0 - successful
6224 * other values - error
6225 **/
6226static int
6227lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
6228{
6229        int rc, entry_sz;
6230
6231        /*
6232         * Initialize timers used by driver
6233         */
6234
6235        /* FCP polling mode timer */
6236        timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
6237
6238        /* Host attention work mask setup */
6239        phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
6240        phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
6241
6242        /* Get all the module params for configuring this host */
6243        lpfc_get_cfgparam(phba);
6244        /* Set up phase-1 common device driver resources */
6245
6246        rc = lpfc_setup_driver_resource_phase1(phba);
6247        if (rc)
6248                return -ENODEV;
6249
6250        if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
6251                phba->menlo_flag |= HBA_MENLO_SUPPORT;
6252                /* check for menlo minimum sg count */
6253                if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
6254                        phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
6255        }
6256
6257        if (!phba->sli.sli3_ring)
6258                phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING,
6259                                              sizeof(struct lpfc_sli_ring),
6260                                              GFP_KERNEL);
6261        if (!phba->sli.sli3_ring)
6262                return -ENOMEM;
6263
6264        /*
6265         * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
6266         * used to create the sg_dma_buf_pool must be dynamically calculated.
6267         */
6268
6269        /* Initialize the host templates the configured values. */
6270        lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
6271        lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
6272        lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
6273
6274        if (phba->sli_rev == LPFC_SLI_REV4)
6275                entry_sz = sizeof(struct sli4_sge);
6276        else
6277                entry_sz = sizeof(struct ulp_bde64);
6278
6279        /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
6280        if (phba->cfg_enable_bg) {
6281                /*
6282                 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
6283                 * the FCP rsp, and a BDE for each. Sice we have no control
6284                 * over how many protection data segments the SCSI Layer
6285                 * will hand us (ie: there could be one for every block
6286                 * in the IO), we just allocate enough BDEs to accomidate
6287                 * our max amount and we need to limit lpfc_sg_seg_cnt to
6288                 * minimize the risk of running out.
6289                 */
6290                phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6291                        sizeof(struct fcp_rsp) +
6292                        (LPFC_MAX_SG_SEG_CNT * entry_sz);
6293
6294                if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
6295                        phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
6296
6297                /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
6298                phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
6299        } else {
6300                /*
6301                 * The scsi_buf for a regular I/O will hold the FCP cmnd,
6302                 * the FCP rsp, a BDE for each, and a BDE for up to
6303                 * cfg_sg_seg_cnt data segments.
6304                 */
6305                phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6306                        sizeof(struct fcp_rsp) +
6307                        ((phba->cfg_sg_seg_cnt + 2) * entry_sz);
6308
6309                /* Total BDEs in BPL for scsi_sg_list */
6310                phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
6311        }
6312
6313        lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
6314                        "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
6315                        phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
6316                        phba->cfg_total_seg_cnt);
6317
6318        phba->max_vpi = LPFC_MAX_VPI;
6319        /* This will be set to correct value after config_port mbox */
6320        phba->max_vports = 0;
6321
6322        /*
6323         * Initialize the SLI Layer to run with lpfc HBAs.
6324         */
6325        lpfc_sli_setup(phba);
6326        lpfc_sli_queue_init(phba);
6327
6328        /* Allocate device driver memory */
6329        if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
6330                return -ENOMEM;
6331
6332        phba->lpfc_sg_dma_buf_pool =
6333                dma_pool_create("lpfc_sg_dma_buf_pool",
6334                                &phba->pcidev->dev, phba->cfg_sg_dma_buf_size,
6335                                BPL_ALIGN_SZ, 0);
6336
6337        if (!phba->lpfc_sg_dma_buf_pool)
6338                goto fail_free_mem;
6339
6340        phba->lpfc_cmd_rsp_buf_pool =
6341                        dma_pool_create("lpfc_cmd_rsp_buf_pool",
6342                                        &phba->pcidev->dev,
6343                                        sizeof(struct fcp_cmnd) +
6344                                        sizeof(struct fcp_rsp),
6345                                        BPL_ALIGN_SZ, 0);
6346
6347        if (!phba->lpfc_cmd_rsp_buf_pool)
6348                goto fail_free_dma_buf_pool;
6349
6350        /*
6351         * Enable sr-iov virtual functions if supported and configured
6352         * through the module parameter.
6353         */
6354        if (phba->cfg_sriov_nr_virtfn > 0) {
6355                rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6356                                                 phba->cfg_sriov_nr_virtfn);
6357                if (rc) {
6358                        lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6359                                        "2808 Requested number of SR-IOV "
6360                                        "virtual functions (%d) is not "
6361                                        "supported\n",
6362                                        phba->cfg_sriov_nr_virtfn);
6363                        phba->cfg_sriov_nr_virtfn = 0;
6364                }
6365        }
6366
6367        return 0;
6368
6369fail_free_dma_buf_pool:
6370        dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
6371        phba->lpfc_sg_dma_buf_pool = NULL;
6372fail_free_mem:
6373        lpfc_mem_free(phba);
6374        return -ENOMEM;
6375}
6376
6377/**
6378 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
6379 * @phba: pointer to lpfc hba data structure.
6380 *
6381 * This routine is invoked to unset the driver internal resources set up
6382 * specific for supporting the SLI-3 HBA device it attached to.
6383 **/
6384static void
6385lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
6386{
6387        /* Free device driver memory allocated */
6388        lpfc_mem_free_all(phba);
6389
6390        return;
6391}
6392
6393/**
6394 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
6395 * @phba: pointer to lpfc hba data structure.
6396 *
6397 * This routine is invoked to set up the driver internal resources specific to
6398 * support the SLI-4 HBA device it attached to.
6399 *
6400 * Return codes
6401 *      0 - successful
6402 *      other values - error
6403 **/
6404static int
6405lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
6406{
6407        LPFC_MBOXQ_t *mboxq;
6408        MAILBOX_t *mb;
6409        int rc, i, max_buf_size;
6410        uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
6411        struct lpfc_mqe *mqe;
6412        int longs;
6413        int extra;
6414        uint64_t wwn;
6415        u32 if_type;
6416        u32 if_fam;
6417
6418        phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
6419        phba->sli4_hba.num_possible_cpu = num_possible_cpus();
6420        phba->sli4_hba.curr_disp_cpu = 0;
6421
6422        /* Get all the module params for configuring this host */
6423        lpfc_get_cfgparam(phba);
6424
6425        /* Set up phase-1 common device driver resources */
6426        rc = lpfc_setup_driver_resource_phase1(phba);
6427        if (rc)
6428                return -ENODEV;
6429
6430        /* Before proceed, wait for POST done and device ready */
6431        rc = lpfc_sli4_post_status_check(phba);
6432        if (rc)
6433                return -ENODEV;
6434
6435        /* Allocate all driver workqueues here */
6436
6437        /* The lpfc_wq workqueue for deferred irq use */
6438        phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
6439
6440        /*
6441         * Initialize timers used by driver
6442         */
6443
6444        timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
6445
6446        /* FCF rediscover timer */
6447        timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
6448
6449        /*
6450         * Control structure for handling external multi-buffer mailbox
6451         * command pass-through.
6452         */
6453        memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
6454                sizeof(struct lpfc_mbox_ext_buf_ctx));
6455        INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
6456
6457        phba->max_vpi = LPFC_MAX_VPI;
6458
6459        /* This will be set to correct value after the read_config mbox */
6460        phba->max_vports = 0;
6461
6462        /* Program the default value of vlan_id and fc_map */
6463        phba->valid_vlan = 0;
6464        phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
6465        phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
6466        phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
6467
6468        /*
6469         * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
6470         * we will associate a new ring, for each EQ/CQ/WQ tuple.
6471         * The WQ create will allocate the ring.
6472         */
6473
6474        /* Initialize buffer queue management fields */
6475        INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
6476        phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
6477        phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
6478
6479        /*
6480         * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
6481         */
6482        /* Initialize the Abort buffer list used by driver */
6483        spin_lock_init(&phba->sli4_hba.abts_io_buf_list_lock);
6484        INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_io_buf_list);
6485
6486        if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6487                /* Initialize the Abort nvme buffer list used by driver */
6488                spin_lock_init(&phba->sli4_hba.abts_nvmet_buf_list_lock);
6489                INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6490                INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
6491                spin_lock_init(&phba->sli4_hba.t_active_list_lock);
6492                INIT_LIST_HEAD(&phba->sli4_hba.t_active_ctx_list);
6493        }
6494
6495        /* This abort list used by worker thread */
6496        spin_lock_init(&phba->sli4_hba.sgl_list_lock);
6497        spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
6498
6499        /*
6500         * Initialize driver internal slow-path work queues
6501         */
6502
6503        /* Driver internel slow-path CQ Event pool */
6504        INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
6505        /* Response IOCB work queue list */
6506        INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
6507        /* Asynchronous event CQ Event work queue list */
6508        INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
6509        /* Fast-path XRI aborted CQ Event work queue list */
6510        INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
6511        /* Slow-path XRI aborted CQ Event work queue list */
6512        INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
6513        /* Receive queue CQ Event work queue list */
6514        INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
6515
6516        /* Initialize extent block lists. */
6517        INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
6518        INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
6519        INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
6520        INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
6521
6522        /* Initialize mboxq lists. If the early init routines fail
6523         * these lists need to be correctly initialized.
6524         */
6525        INIT_LIST_HEAD(&phba->sli.mboxq);
6526        INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
6527
6528        /* initialize optic_state to 0xFF */
6529        phba->sli4_hba.lnk_info.optic_state = 0xff;
6530
6531        /* Allocate device driver memory */
6532        rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
6533        if (rc)
6534                return -ENOMEM;
6535
6536        /* IF Type 2 ports get initialized now. */
6537        if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
6538            LPFC_SLI_INTF_IF_TYPE_2) {
6539                rc = lpfc_pci_function_reset(phba);
6540                if (unlikely(rc)) {
6541                        rc = -ENODEV;
6542                        goto out_free_mem;
6543                }
6544                phba->temp_sensor_support = 1;
6545        }
6546
6547        /* Create the bootstrap mailbox command */
6548        rc = lpfc_create_bootstrap_mbox(phba);
6549        if (unlikely(rc))
6550                goto out_free_mem;
6551
6552        /* Set up the host's endian order with the device. */
6553        rc = lpfc_setup_endian_order(phba);
6554        if (unlikely(rc))
6555                goto out_free_bsmbx;
6556
6557        /* Set up the hba's configuration parameters. */
6558        rc = lpfc_sli4_read_config(phba);
6559        if (unlikely(rc))
6560                goto out_free_bsmbx;
6561        rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
6562        if (unlikely(rc))
6563                goto out_free_bsmbx;
6564
6565        /* IF Type 0 ports get initialized now. */
6566        if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
6567            LPFC_SLI_INTF_IF_TYPE_0) {
6568                rc = lpfc_pci_function_reset(phba);
6569                if (unlikely(rc))
6570                        goto out_free_bsmbx;
6571        }
6572
6573        mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6574                                                       GFP_KERNEL);
6575        if (!mboxq) {
6576                rc = -ENOMEM;
6577                goto out_free_bsmbx;
6578        }
6579
6580        /* Check for NVMET being configured */
6581        phba->nvmet_support = 0;
6582        if (lpfc_enable_nvmet_cnt) {
6583
6584                /* First get WWN of HBA instance */
6585                lpfc_read_nv(phba, mboxq);
6586                rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6587                if (rc != MBX_SUCCESS) {
6588                        lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6589                                        "6016 Mailbox failed , mbxCmd x%x "
6590                                        "READ_NV, mbxStatus x%x\n",
6591                                        bf_get(lpfc_mqe_command, &mboxq->u.mqe),
6592                                        bf_get(lpfc_mqe_status, &mboxq->u.mqe));
6593                        mempool_free(mboxq, phba->mbox_mem_pool);
6594                        rc = -EIO;
6595                        goto out_free_bsmbx;
6596                }
6597                mb = &mboxq->u.mb;
6598                memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
6599                       sizeof(uint64_t));
6600                wwn = cpu_to_be64(wwn);
6601                phba->sli4_hba.wwnn.u.name = wwn;
6602                memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
6603                       sizeof(uint64_t));
6604                /* wwn is WWPN of HBA instance */
6605                wwn = cpu_to_be64(wwn);
6606                phba->sli4_hba.wwpn.u.name = wwn;
6607
6608                /* Check to see if it matches any module parameter */
6609                for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
6610                        if (wwn == lpfc_enable_nvmet[i]) {
6611#if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
6612                                if (lpfc_nvmet_mem_alloc(phba))
6613                                        break;
6614
6615                                phba->nvmet_support = 1; /* a match */
6616
6617                                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6618                                                "6017 NVME Target %016llx\n",
6619                                                wwn);
6620#else
6621                                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6622                                                "6021 Can't enable NVME Target."
6623                                                " NVME_TARGET_FC infrastructure"
6624                                                " is not in kernel\n");
6625#endif
6626                                /* Not supported for NVMET */
6627                                phba->cfg_xri_rebalancing = 0;
6628                                break;
6629                        }
6630                }
6631        }
6632
6633        lpfc_nvme_mod_param_dep(phba);
6634
6635        /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
6636        lpfc_supported_pages(mboxq);
6637        rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6638        if (!rc) {
6639                mqe = &mboxq->u.mqe;
6640                memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
6641                       LPFC_MAX_SUPPORTED_PAGES);
6642                for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
6643                        switch (pn_page[i]) {
6644                        case LPFC_SLI4_PARAMETERS:
6645                                phba->sli4_hba.pc_sli4_params.supported = 1;
6646                                break;
6647                        default:
6648                                break;
6649                        }
6650                }
6651                /* Read the port's SLI4 Parameters capabilities if supported. */
6652                if (phba->sli4_hba.pc_sli4_params.supported)
6653                        rc = lpfc_pc_sli4_params_get(phba, mboxq);
6654                if (rc) {
6655                        mempool_free(mboxq, phba->mbox_mem_pool);
6656                        rc = -EIO;
6657                        goto out_free_bsmbx;
6658                }
6659        }
6660
6661        /*
6662         * Get sli4 parameters that override parameters from Port capabilities.
6663         * If this call fails, it isn't critical unless the SLI4 parameters come
6664         * back in conflict.
6665         */
6666        rc = lpfc_get_sli4_parameters(phba, mboxq);
6667        if (rc) {
6668                if_type = bf_get(lpfc_sli_intf_if_type,
6669                                 &phba->sli4_hba.sli_intf);
6670                if_fam = bf_get(lpfc_sli_intf_sli_family,
6671                                &phba->sli4_hba.sli_intf);
6672                if (phba->sli4_hba.extents_in_use &&
6673                    phba->sli4_hba.rpi_hdrs_in_use) {
6674                        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6675                                "2999 Unsupported SLI4 Parameters "
6676                                "Extents and RPI headers enabled.\n");
6677                        if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6678                            if_fam ==  LPFC_SLI_INTF_FAMILY_BE2) {
6679                                mempool_free(mboxq, phba->mbox_mem_pool);
6680                                rc = -EIO;
6681                                goto out_free_bsmbx;
6682                        }
6683                }
6684                if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6685                      if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
6686                        mempool_free(mboxq, phba->mbox_mem_pool);
6687                        rc = -EIO;
6688                        goto out_free_bsmbx;
6689                }
6690        }
6691
6692        /*
6693         * 1 for cmd, 1 for rsp, NVME adds an extra one
6694         * for boundary conditions in its max_sgl_segment template.
6695         */
6696        extra = 2;
6697        if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
6698                extra++;
6699
6700        /*
6701         * It doesn't matter what family our adapter is in, we are
6702         * limited to 2 Pages, 512 SGEs, for our SGL.
6703         * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
6704         */
6705        max_buf_size = (2 * SLI4_PAGE_SIZE);
6706
6707        /*
6708         * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
6709         * used to create the sg_dma_buf_pool must be calculated.
6710         */
6711        if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
6712                /* Both cfg_enable_bg and cfg_external_dif code paths */
6713
6714                /*
6715                 * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
6716                 * the FCP rsp, and a SGE. Sice we have no control
6717                 * over how many protection segments the SCSI Layer
6718                 * will hand us (ie: there could be one for every block
6719                 * in the IO), just allocate enough SGEs to accomidate
6720                 * our max amount and we need to limit lpfc_sg_seg_cnt
6721                 * to minimize the risk of running out.
6722                 */
6723                phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6724                                sizeof(struct fcp_rsp) + max_buf_size;
6725
6726                /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
6727                phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
6728
6729                /*
6730                 * If supporting DIF, reduce the seg count for scsi to
6731                 * allow room for the DIF sges.
6732                 */
6733                if (phba->cfg_enable_bg &&
6734                    phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF)
6735                        phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF;
6736                else
6737                        phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6738
6739        } else {
6740                /*
6741                 * The scsi_buf for a regular I/O holds the FCP cmnd,
6742                 * the FCP rsp, a SGE for each, and a SGE for up to
6743                 * cfg_sg_seg_cnt data segments.
6744                 */
6745                phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6746                                sizeof(struct fcp_rsp) +
6747                                ((phba->cfg_sg_seg_cnt + extra) *
6748                                sizeof(struct sli4_sge));
6749
6750                /* Total SGEs for scsi_sg_list */
6751                phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
6752                phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6753
6754                /*
6755                 * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
6756                 * need to post 1 page for the SGL.
6757                 */
6758        }
6759
6760        if (phba->cfg_xpsgl && !phba->nvmet_support)
6761                phba->cfg_sg_dma_buf_size = LPFC_DEFAULT_XPSGL_SIZE;
6762        else if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
6763                phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
6764        else
6765                phba->cfg_sg_dma_buf_size =
6766                                SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
6767
6768        phba->border_sge_num = phba->cfg_sg_dma_buf_size /
6769                               sizeof(struct sli4_sge);
6770
6771        /* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */
6772        if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6773                if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) {
6774                        lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
6775                                        "6300 Reducing NVME sg segment "
6776                                        "cnt to %d\n",
6777                                        LPFC_MAX_NVME_SEG_CNT);
6778                        phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
6779                } else
6780                        phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt;
6781        }
6782
6783        /* Initialize the host templates with the updated values. */
6784        lpfc_vport_template.sg_tablesize = phba->cfg_scsi_seg_cnt;
6785        lpfc_template.sg_tablesize = phba->cfg_scsi_seg_cnt;
6786        lpfc_template_no_hr.sg_tablesize = phba->cfg_scsi_seg_cnt;
6787
6788        lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
6789                        "9087 sg_seg_cnt:%d dmabuf_size:%d "
6790                        "total:%d scsi:%d nvme:%d\n",
6791                        phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
6792                        phba->cfg_total_seg_cnt,  phba->cfg_scsi_seg_cnt,
6793                        phba->cfg_nvme_seg_cnt);
6794
6795        if (phba->cfg_sg_dma_buf_size < SLI4_PAGE_SIZE)
6796                i = phba->cfg_sg_dma_buf_size;
6797        else
6798                i = SLI4_PAGE_SIZE;
6799
6800        phba->lpfc_sg_dma_buf_pool =
6801                        dma_pool_create("lpfc_sg_dma_buf_pool",
6802                                        &phba->pcidev->dev,
6803                                        phba->cfg_sg_dma_buf_size,
6804                                        i, 0);
6805        if (!phba->lpfc_sg_dma_buf_pool)
6806                goto out_free_bsmbx;
6807
6808        phba->lpfc_cmd_rsp_buf_pool =
6809                        dma_pool_create("lpfc_cmd_rsp_buf_pool",
6810                                        &phba->pcidev->dev,
6811                                        sizeof(struct fcp_cmnd) +
6812                                        sizeof(struct fcp_rsp),
6813                                        i, 0);
6814        if (!phba->lpfc_cmd_rsp_buf_pool)
6815                goto out_free_sg_dma_buf;
6816
6817        mempool_free(mboxq, phba->mbox_mem_pool);
6818
6819        /* Verify OAS is supported */
6820        lpfc_sli4_oas_verify(phba);
6821
6822        /* Verify RAS support on adapter */
6823        lpfc_sli4_ras_init(phba);
6824
6825        /* Verify all the SLI4 queues */
6826        rc = lpfc_sli4_queue_verify(phba);
6827        if (rc)
6828                goto out_free_cmd_rsp_buf;
6829
6830        /* Create driver internal CQE event pool */
6831        rc = lpfc_sli4_cq_event_pool_create(phba);
6832        if (rc)
6833                goto out_free_cmd_rsp_buf;
6834
6835        /* Initialize sgl lists per host */
6836        lpfc_init_sgl_list(phba);
6837
6838        /* Allocate and initialize active sgl array */
6839        rc = lpfc_init_active_sgl_array(phba);
6840        if (rc) {
6841                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6842                                "1430 Failed to initialize sgl list.\n");
6843                goto out_destroy_cq_event_pool;
6844        }
6845        rc = lpfc_sli4_init_rpi_hdrs(phba);
6846        if (rc) {
6847                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6848                                "1432 Failed to initialize rpi headers.\n");
6849                goto out_free_active_sgl;
6850        }
6851
6852        /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
6853        longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
6854        phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long),
6855                                         GFP_KERNEL);
6856        if (!phba->fcf.fcf_rr_bmask) {
6857                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6858                                "2759 Failed allocate memory for FCF round "
6859                                "robin failover bmask\n");
6860                rc = -ENOMEM;
6861                goto out_remove_rpi_hdrs;
6862        }
6863
6864        phba->sli4_hba.hba_eq_hdl = kcalloc(phba->cfg_irq_chann,
6865                                            sizeof(struct lpfc_hba_eq_hdl),
6866                                            GFP_KERNEL);
6867        if (!phba->sli4_hba.hba_eq_hdl) {
6868                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6869                                "2572 Failed allocate memory for "
6870                                "fast-path per-EQ handle array\n");
6871                rc = -ENOMEM;
6872                goto out_free_fcf_rr_bmask;
6873        }
6874
6875        phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_possible_cpu,
6876                                        sizeof(struct lpfc_vector_map_info),
6877                                        GFP_KERNEL);
6878        if (!phba->sli4_hba.cpu_map) {
6879                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6880                                "3327 Failed allocate memory for msi-x "
6881                                "interrupt vector mapping\n");
6882                rc = -ENOMEM;
6883                goto out_free_hba_eq_hdl;
6884        }
6885
6886        phba->sli4_hba.eq_info = alloc_percpu(struct lpfc_eq_intr_info);
6887        if (!phba->sli4_hba.eq_info) {
6888                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6889                                "3321 Failed allocation for per_cpu stats\n");
6890                rc = -ENOMEM;
6891                goto out_free_hba_cpu_map;
6892        }
6893        /*
6894         * Enable sr-iov virtual functions if supported and configured
6895         * through the module parameter.
6896         */
6897        if (phba->cfg_sriov_nr_virtfn > 0) {
6898                rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6899                                                 phba->cfg_sriov_nr_virtfn);
6900                if (rc) {
6901                        lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6902                                        "3020 Requested number of SR-IOV "
6903                                        "virtual functions (%d) is not "
6904                                        "supported\n",
6905                                        phba->cfg_sriov_nr_virtfn);
6906                        phba->cfg_sriov_nr_virtfn = 0;
6907                }
6908        }
6909
6910        return 0;
6911
6912out_free_hba_cpu_map:
6913        kfree(phba->sli4_hba.cpu_map);
6914out_free_hba_eq_hdl:
6915        kfree(phba->sli4_hba.hba_eq_hdl);
6916out_free_fcf_rr_bmask:
6917        kfree(phba->fcf.fcf_rr_bmask);
6918out_remove_rpi_hdrs:
6919        lpfc_sli4_remove_rpi_hdrs(phba);
6920out_free_active_sgl:
6921        lpfc_free_active_sgl(phba);
6922out_destroy_cq_event_pool:
6923        lpfc_sli4_cq_event_pool_destroy(phba);
6924out_free_cmd_rsp_buf:
6925        dma_pool_destroy(phba->lpfc_cmd_rsp_buf_pool);
6926        phba->lpfc_cmd_rsp_buf_pool = NULL;
6927out_free_sg_dma_buf:
6928        dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
6929        phba->lpfc_sg_dma_buf_pool = NULL;
6930out_free_bsmbx:
6931        lpfc_destroy_bootstrap_mbox(phba);
6932out_free_mem:
6933        lpfc_mem_free(phba);
6934        return rc;
6935}
6936
6937/**
6938 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
6939 * @phba: pointer to lpfc hba data structure.
6940 *
6941 * This routine is invoked to unset the driver internal resources set up
6942 * specific for supporting the SLI-4 HBA device it attached to.
6943 **/
6944static void
6945lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
6946{
6947        struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6948
6949        free_percpu(phba->sli4_hba.eq_info);
6950
6951        /* Free memory allocated for msi-x interrupt vector to CPU mapping */
6952        kfree(phba->sli4_hba.cpu_map);
6953        phba->sli4_hba.num_possible_cpu = 0;
6954        phba->sli4_hba.num_present_cpu = 0;
6955        phba->sli4_hba.curr_disp_cpu = 0;
6956
6957        /* Free memory allocated for fast-path work queue handles */
6958        kfree(phba->sli4_hba.hba_eq_hdl);
6959
6960        /* Free the allocated rpi headers. */
6961        lpfc_sli4_remove_rpi_hdrs(phba);
6962        lpfc_sli4_remove_rpis(phba);
6963
6964        /* Free eligible FCF index bmask */
6965        kfree(phba->fcf.fcf_rr_bmask);
6966
6967        /* Free the ELS sgl list */
6968        lpfc_free_active_sgl(phba);
6969        lpfc_free_els_sgl_list(phba);
6970        lpfc_free_nvmet_sgl_list(phba);
6971
6972        /* Free the completion queue EQ event pool */
6973        lpfc_sli4_cq_event_release_all(phba);
6974        lpfc_sli4_cq_event_pool_destroy(phba);
6975
6976        /* Release resource identifiers. */
6977        lpfc_sli4_dealloc_resource_identifiers(phba);
6978
6979        /* Free the bsmbx region. */
6980        lpfc_destroy_bootstrap_mbox(phba);
6981
6982        /* Free the SLI Layer memory with SLI4 HBAs */
6983        lpfc_mem_free_all(phba);
6984
6985        /* Free the current connect table */
6986        list_for_each_entry_safe(conn_entry, next_conn_entry,
6987                &phba->fcf_conn_rec_list, list) {
6988                list_del_init(&conn_entry->list);
6989                kfree(conn_entry);
6990        }
6991
6992        return;
6993}
6994
6995/**
6996 * lpfc_init_api_table_setup - Set up init api function jump table
6997 * @phba: The hba struct for which this call is being executed.
6998 * @dev_grp: The HBA PCI-Device group number.
6999 *
7000 * This routine sets up the device INIT interface API function jump table
7001 * in @phba struct.
7002 *
7003 * Returns: 0 - success, -ENODEV - failure.
7004 **/
7005int
7006lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7007{
7008        phba->lpfc_hba_init_link = lpfc_hba_init_link;
7009        phba->lpfc_hba_down_link = lpfc_hba_down_link;
7010        phba->lpfc_selective_reset = lpfc_selective_reset;
7011        switch (dev_grp) {
7012        case LPFC_PCI_DEV_LP:
7013                phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
7014                phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
7015                phba->lpfc_stop_port = lpfc_stop_port_s3;
7016                break;
7017        case LPFC_PCI_DEV_OC:
7018                phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
7019                phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
7020                phba->lpfc_stop_port = lpfc_stop_port_s4;
7021                break;
7022        default:
7023                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7024                                "1431 Invalid HBA PCI-device group: 0x%x\n",
7025                                dev_grp);
7026                return -ENODEV;
7027                break;
7028        }
7029        return 0;
7030}
7031
7032/**
7033 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
7034 * @phba: pointer to lpfc hba data structure.
7035 *
7036 * This routine is invoked to set up the driver internal resources after the
7037 * device specific resource setup to support the HBA device it attached to.
7038 *
7039 * Return codes
7040 *      0 - successful
7041 *      other values - error
7042 **/
7043static int
7044lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
7045{
7046        int error;
7047
7048        /* Startup the kernel thread for this host adapter. */
7049        phba->worker_thread = kthread_run(lpfc_do_work, phba,
7050                                          "lpfc_worker_%d", phba->brd_no);
7051        if (IS_ERR(phba->worker_thread)) {
7052                error = PTR_ERR(phba->worker_thread);
7053                return error;
7054        }
7055
7056        return 0;
7057}
7058
7059/**
7060 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
7061 * @phba: pointer to lpfc hba data structure.
7062 *
7063 * This routine is invoked to unset the driver internal resources set up after
7064 * the device specific resource setup for supporting the HBA device it
7065 * attached to.
7066 **/
7067static void
7068lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
7069{
7070        if (phba->wq) {
7071                flush_workqueue(phba->wq);
7072                destroy_workqueue(phba->wq);
7073                phba->wq = NULL;
7074        }
7075
7076        /* Stop kernel worker thread */
7077        if (phba->worker_thread)
7078                kthread_stop(phba->worker_thread);
7079}
7080
7081/**
7082 * lpfc_free_iocb_list - Free iocb list.
7083 * @phba: pointer to lpfc hba data structure.
7084 *
7085 * This routine is invoked to free the driver's IOCB list and memory.
7086 **/
7087void
7088lpfc_free_iocb_list(struct lpfc_hba *phba)
7089{
7090        struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
7091
7092        spin_lock_irq(&phba->hbalock);
7093        list_for_each_entry_safe(iocbq_entry, iocbq_next,
7094                                 &phba->lpfc_iocb_list, list) {
7095                list_del(&iocbq_entry->list);
7096                kfree(iocbq_entry);
7097                phba->total_iocbq_bufs--;
7098        }
7099        spin_unlock_irq(&phba->hbalock);
7100
7101        return;
7102}
7103
7104/**
7105 * lpfc_init_iocb_list - Allocate and initialize iocb list.
7106 * @phba: pointer to lpfc hba data structure.
7107 *
7108 * This routine is invoked to allocate and initizlize the driver's IOCB
7109 * list and set up the IOCB tag array accordingly.
7110 *
7111 * Return codes
7112 *      0 - successful
7113 *      other values - error
7114 **/
7115int
7116lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
7117{
7118        struct lpfc_iocbq *iocbq_entry = NULL;
7119        uint16_t iotag;
7120        int i;
7121
7122        /* Initialize and populate the iocb list per host.  */
7123        INIT_LIST_HEAD(&phba->lpfc_iocb_list);
7124        for (i = 0; i < iocb_count; i++) {
7125                iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
7126                if (iocbq_entry == NULL) {
7127                        printk(KERN_ERR "%s: only allocated %d iocbs of "
7128                                "expected %d count. Unloading driver.\n",
7129                                __func__, i, LPFC_IOCB_LIST_CNT);
7130                        goto out_free_iocbq;
7131                }
7132
7133                iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
7134                if (iotag == 0) {
7135                        kfree(iocbq_entry);
7136                        printk(KERN_ERR "%s: failed to allocate IOTAG. "
7137                                "Unloading driver.\n", __func__);
7138                        goto out_free_iocbq;
7139                }
7140                iocbq_entry->sli4_lxritag = NO_XRI;
7141                iocbq_entry->sli4_xritag = NO_XRI;
7142
7143                spin_lock_irq(&phba->hbalock);
7144                list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
7145                phba->total_iocbq_bufs++;
7146                spin_unlock_irq(&phba->hbalock);
7147        }
7148
7149        return 0;
7150
7151out_free_iocbq:
7152        lpfc_free_iocb_list(phba);
7153
7154        return -ENOMEM;
7155}
7156
7157/**
7158 * lpfc_free_sgl_list - Free a given sgl list.
7159 * @phba: pointer to lpfc hba data structure.
7160 * @sglq_list: pointer to the head of sgl list.
7161 *
7162 * This routine is invoked to free a give sgl list and memory.
7163 **/
7164void
7165lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
7166{
7167        struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
7168
7169        list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
7170                list_del(&sglq_entry->list);
7171                lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
7172                kfree(sglq_entry);
7173        }
7174}
7175
7176/**
7177 * lpfc_free_els_sgl_list - Free els sgl list.
7178 * @phba: pointer to lpfc hba data structure.
7179 *
7180 * This routine is invoked to free the driver's els sgl list and memory.
7181 **/
7182static void
7183lpfc_free_els_sgl_list(struct lpfc_hba *phba)
7184{
7185        LIST_HEAD(sglq_list);
7186
7187        /* Retrieve all els sgls from driver list */
7188        spin_lock_irq(&phba->hbalock);
7189        spin_lock(&phba->sli4_hba.sgl_list_lock);
7190        list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
7191        spin_unlock(&phba->sli4_hba.sgl_list_lock);
7192        spin_unlock_irq(&phba->hbalock);
7193
7194        /* Now free the sgl list */
7195        lpfc_free_sgl_list(phba, &sglq_list);
7196}
7197
7198/**
7199 * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
7200 * @phba: pointer to lpfc hba data structure.
7201 *
7202 * This routine is invoked to free the driver's nvmet sgl list and memory.
7203 **/
7204static void
7205lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
7206{
7207        struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
7208        LIST_HEAD(sglq_list);
7209
7210        /* Retrieve all nvmet sgls from driver list */
7211        spin_lock_irq(&phba->hbalock);
7212        spin_lock(&phba->sli4_hba.sgl_list_lock);
7213        list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
7214        spin_unlock(&phba->sli4_hba.sgl_list_lock);
7215        spin_unlock_irq(&phba->hbalock);
7216
7217        /* Now free the sgl list */
7218        list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
7219                list_del(&sglq_entry->list);
7220                lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
7221                kfree(sglq_entry);
7222        }
7223
7224        /* Update the nvmet_xri_cnt to reflect no current sgls.
7225         * The next initialization cycle sets the count and allocates
7226         * the sgls over again.
7227         */
7228        phba->sli4_hba.nvmet_xri_cnt = 0;
7229}
7230
7231/**
7232 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
7233 * @phba: pointer to lpfc hba data structure.
7234 *
7235 * This routine is invoked to allocate the driver's active sgl memory.
7236 * This array will hold the sglq_entry's for active IOs.
7237 **/
7238static int
7239lpfc_init_active_sgl_array(struct lpfc_hba *phba)
7240{
7241        int size;
7242        size = sizeof(struct lpfc_sglq *);
7243        size *= phba->sli4_hba.max_cfg_param.max_xri;
7244
7245        phba->sli4_hba.lpfc_sglq_active_list =
7246                kzalloc(size, GFP_KERNEL);
7247        if (!phba->sli4_hba.lpfc_sglq_active_list)
7248                return -ENOMEM;
7249        return 0;
7250}
7251
7252/**
7253 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
7254 * @phba: pointer to lpfc hba data structure.
7255 *
7256 * This routine is invoked to walk through the array of active sglq entries
7257 * and free all of the resources.
7258 * This is just a place holder for now.
7259 **/
7260static void
7261lpfc_free_active_sgl(struct lpfc_hba *phba)
7262{
7263        kfree(phba->sli4_hba.lpfc_sglq_active_list);
7264}
7265
7266/**
7267 * lpfc_init_sgl_list - Allocate and initialize sgl list.
7268 * @phba: pointer to lpfc hba data structure.
7269 *
7270 * This routine is invoked to allocate and initizlize the driver's sgl
7271 * list and set up the sgl xritag tag array accordingly.
7272 *
7273 **/
7274static void
7275lpfc_init_sgl_list(struct lpfc_hba *phba)
7276{
7277        /* Initialize and populate the sglq list per host/VF. */
7278        INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
7279        INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7280        INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
7281        INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
7282
7283        /* els xri-sgl book keeping */
7284        phba->sli4_hba.els_xri_cnt = 0;
7285
7286        /* nvme xri-buffer book keeping */
7287        phba->sli4_hba.io_xri_cnt = 0;
7288}
7289
7290/**
7291 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
7292 * @phba: pointer to lpfc hba data structure.
7293 *
7294 * This routine is invoked to post rpi header templates to the
7295 * port for those SLI4 ports that do not support extents.  This routine
7296 * posts a PAGE_SIZE memory region to the port to hold up to
7297 * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
7298 * and should be called only when interrupts are disabled.
7299 *
7300 * Return codes
7301 *      0 - successful
7302 *      -ERROR - otherwise.
7303 **/
7304int
7305lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
7306{
7307        int rc = 0;
7308        struct lpfc_rpi_hdr *rpi_hdr;
7309
7310        INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
7311        if (!phba->sli4_hba.rpi_hdrs_in_use)
7312                return rc;
7313        if (phba->sli4_hba.extents_in_use)
7314                return -EIO;
7315
7316        rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
7317        if (!rpi_hdr) {
7318                lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7319                                "0391 Error during rpi post operation\n");
7320                lpfc_sli4_remove_rpis(phba);
7321                rc = -ENODEV;
7322        }
7323
7324        return rc;
7325}
7326
7327/**
7328 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
7329 * @phba: pointer to lpfc hba data structure.
7330 *
7331 * This routine is invoked to allocate a single 4KB memory region to
7332 * support rpis and stores them in the phba.  This single region
7333 * provides support for up to 64 rpis.  The region is used globally
7334 * by the device.
7335 *
7336 * Returns:
7337 *   A valid rpi hdr on success.
7338 *   A NULL pointer on any failure.
7339 **/
7340struct lpfc_rpi_hdr *
7341lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
7342{
7343        uint16_t rpi_limit, curr_rpi_range;
7344        struct lpfc_dmabuf *dmabuf;
7345        struct lpfc_rpi_hdr *rpi_hdr;
7346
7347        /*
7348         * If the SLI4 port supports extents, posting the rpi header isn't
7349         * required.  Set the expected maximum count and let the actual value
7350         * get set when extents are fully allocated.
7351         */
7352        if (!phba->sli4_hba.rpi_hdrs_in_use)
7353                return NULL;
7354        if (phba->sli4_hba.extents_in_use)
7355                return NULL;
7356
7357        /* The limit on the logical index is just the max_rpi count. */
7358        rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
7359
7360        spin_lock_irq(&phba->hbalock);
7361        /*
7362         * Establish the starting RPI in this header block.  The starting
7363         * rpi is normalized to a zero base because the physical rpi is
7364         * port based.
7365         */
7366        curr_rpi_range = phba->sli4_hba.next_rpi;
7367        spin_unlock_irq(&phba->hbalock);
7368
7369        /* Reached full RPI range */
7370        if (curr_rpi_range == rpi_limit)
7371                return NULL;
7372
7373        /*
7374         * First allocate the protocol header region for the port.  The
7375         * port expects a 4KB DMA-mapped memory region that is 4K aligned.
7376         */
7377        dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
7378        if (!dmabuf)
7379                return NULL;
7380
7381        dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
7382                                          LPFC_HDR_TEMPLATE_SIZE,
7383                                          &dmabuf->phys, GFP_KERNEL);
7384        if (!dmabuf->virt) {
7385                rpi_hdr = NULL;
7386                goto err_free_dmabuf;
7387        }
7388
7389        if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
7390                rpi_hdr = NULL;
7391                goto err_free_coherent;
7392        }
7393
7394        /* Save the rpi header data for cleanup later. */
7395        rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
7396        if (!rpi_hdr)
7397                goto err_free_coherent;
7398
7399        rpi_hdr->dmabuf = dmabuf;
7400        rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
7401        rpi_hdr->page_count = 1;
7402        spin_lock_irq(&phba->hbalock);
7403
7404        /* The rpi_hdr stores the logical index only. */
7405        rpi_hdr->start_rpi = curr_rpi_range;
7406        rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
7407        list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
7408
7409        spin_unlock_irq(&phba->hbalock);
7410        return rpi_hdr;
7411
7412 err_free_coherent:
7413        dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
7414                          dmabuf->virt, dmabuf->phys);
7415 err_free_dmabuf:
7416        kfree(dmabuf);
7417        return NULL;
7418}
7419
7420/**
7421 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
7422 * @phba: pointer to lpfc hba data structure.
7423 *
7424 * This routine is invoked to remove all memory resources allocated
7425 * to support rpis for SLI4 ports not supporting extents. This routine
7426 * presumes the caller has released all rpis consumed by fabric or port
7427 * logins and is prepared to have the header pages removed.
7428 **/
7429void
7430lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
7431{
7432        struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
7433
7434        if (!phba->sli4_hba.rpi_hdrs_in_use)
7435                goto exit;
7436
7437        list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
7438                                 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
7439                list_del(&rpi_hdr->list);
7440                dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
7441                                  rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
7442                kfree(rpi_hdr->dmabuf);
7443                kfree(rpi_hdr);
7444        }
7445 exit:
7446        /* There are no rpis available to the port now. */
7447        phba->sli4_hba.next_rpi = 0;
7448}
7449
7450/**
7451 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
7452 * @pdev: pointer to pci device data structure.
7453 *
7454 * This routine is invoked to allocate the driver hba data structure for an
7455 * HBA device. If the allocation is successful, the phba reference to the
7456 * PCI device data structure is set.
7457 *
7458 * Return codes
7459 *      pointer to @phba - successful
7460 *      NULL - error
7461 **/
7462static struct lpfc_hba *
7463lpfc_hba_alloc(struct pci_dev *pdev)
7464{
7465        struct lpfc_hba *phba;
7466
7467        /* Allocate memory for HBA structure */
7468        phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
7469        if (!phba) {
7470                dev_err(&pdev->dev, "failed to allocate hba struct\n");
7471                return NULL;
7472        }
7473
7474        /* Set reference to PCI device in HBA structure */
7475        phba->pcidev = pdev;
7476
7477        /* Assign an unused board number */
7478        phba->brd_no = lpfc_get_instance();
7479        if (phba->brd_no < 0) {
7480                kfree(phba);
7481                return NULL;
7482        }
7483        phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
7484
7485        spin_lock_init(&phba->ct_ev_lock);
7486        INIT_LIST_HEAD(&phba->ct_ev_waiters);
7487
7488        return phba;
7489}
7490
7491/**
7492 * lpfc_hba_free - Free driver hba data structure with a device.
7493 * @phba: pointer to lpfc hba data structure.
7494 *
7495 * This routine is invoked to free the driver hba data structure with an
7496 * HBA device.
7497 **/
7498static void
7499lpfc_hba_free(struct lpfc_hba *phba)
7500{
7501        if (phba->sli_rev == LPFC_SLI_REV4)
7502                kfree(phba->sli4_hba.hdwq);
7503
7504        /* Release the driver assigned board number */
7505        idr_remove(&lpfc_hba_index, phba->brd_no);
7506
7507        /* Free memory allocated with sli3 rings */
7508        kfree(phba->sli.sli3_ring);
7509        phba->sli.sli3_ring = NULL;
7510
7511        kfree(phba);
7512        return;
7513}
7514
7515/**
7516 * lpfc_create_shost - Create hba physical port with associated scsi host.
7517 * @phba: pointer to lpfc hba data structure.
7518 *
7519 * This routine is invoked to create HBA physical port and associate a SCSI
7520 * host with it.
7521 *
7522 * Return codes
7523 *      0 - successful
7524 *      other values - error
7525 **/
7526static int
7527lpfc_create_shost(struct lpfc_hba *phba)
7528{
7529        struct lpfc_vport *vport;
7530        struct Scsi_Host  *shost;
7531
7532        /* Initialize HBA FC structure */
7533        phba->fc_edtov = FF_DEF_EDTOV;
7534        phba->fc_ratov = FF_DEF_RATOV;
7535        phba->fc_altov = FF_DEF_ALTOV;
7536        phba->fc_arbtov = FF_DEF_ARBTOV;
7537
7538        atomic_set(&phba->sdev_cnt, 0);
7539        vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
7540        if (!vport)
7541                return -ENODEV;
7542
7543        shost = lpfc_shost_from_vport(vport);
7544        phba->pport = vport;
7545
7546        if (phba->nvmet_support) {
7547                /* Only 1 vport (pport) will support NVME target */
7548                if (phba->txrdy_payload_pool == NULL) {
7549                        phba->txrdy_payload_pool = dma_pool_create(
7550                                "txrdy_pool", &phba->pcidev->dev,
7551                                TXRDY_PAYLOAD_LEN, 16, 0);
7552                        if (phba->txrdy_payload_pool) {
7553                                phba->targetport = NULL;
7554                                phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
7555                                lpfc_printf_log(phba, KERN_INFO,
7556                                                LOG_INIT | LOG_NVME_DISC,
7557                                                "6076 NVME Target Found\n");
7558                        }
7559                }
7560        }
7561
7562        lpfc_debugfs_initialize(vport);
7563        /* Put reference to SCSI host to driver's device private data */
7564        pci_set_drvdata(phba->pcidev, shost);
7565
7566        /*
7567         * At this point we are fully registered with PSA. In addition,
7568         * any initial discovery should be completed.
7569         */
7570        vport->load_flag |= FC_ALLOW_FDMI;
7571        if (phba->cfg_enable_SmartSAN ||
7572            (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
7573
7574                /* Setup appropriate attribute masks */
7575                vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
7576                if (phba->cfg_enable_SmartSAN)
7577                        vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
7578                else
7579                        vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
7580        }
7581        return 0;
7582}
7583
7584/**
7585 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
7586 * @phba: pointer to lpfc hba data structure.
7587 *
7588 * This routine is invoked to destroy HBA physical port and the associated
7589 * SCSI host.
7590 **/
7591static void
7592lpfc_destroy_shost(struct lpfc_hba *phba)
7593{
7594        struct lpfc_vport *vport = phba->pport;
7595
7596        /* Destroy physical port that associated with the SCSI host */
7597        destroy_port(vport);
7598
7599        return;
7600}
7601
7602/**
7603 * lpfc_setup_bg - Setup Block guard structures and debug areas.
7604 * @phba: pointer to lpfc hba data structure.
7605 * @shost: the shost to be used to detect Block guard settings.
7606 *
7607 * This routine sets up the local Block guard protocol settings for @shost.
7608 * This routine also allocates memory for debugging bg buffers.
7609 **/
7610static void
7611lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
7612{
7613        uint32_t old_mask;
7614        uint32_t old_guard;
7615
7616        if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7617                lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7618                                "1478 Registering BlockGuard with the "
7619                                "SCSI layer\n");
7620
7621                old_mask = phba->cfg_prot_mask;
7622                old_guard = phba->cfg_prot_guard;
7623
7624                /* Only allow supported values */
7625                phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
7626                        SHOST_DIX_TYPE0_PROTECTION |
7627                        SHOST_DIX_TYPE1_PROTECTION);
7628                phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
7629                                         SHOST_DIX_GUARD_CRC);
7630
7631                /* DIF Type 1 protection for profiles AST1/C1 is end to end */
7632                if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
7633                        phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
7634
7635                if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7636                        if ((old_mask != phba->cfg_prot_mask) ||
7637                                (old_guard != phba->cfg_prot_guard))
7638                                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7639                                        "1475 Registering BlockGuard with the "
7640                                        "SCSI layer: mask %d  guard %d\n",
7641                                        phba->cfg_prot_mask,
7642                                        phba->cfg_prot_guard);
7643
7644                        scsi_host_set_prot(shost, phba->cfg_prot_mask);
7645                        scsi_host_set_guard(shost, phba->cfg_prot_guard);
7646                } else
7647                        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7648                                "1479 Not Registering BlockGuard with the SCSI "
7649                                "layer, Bad protection parameters: %d %d\n",
7650                                old_mask, old_guard);
7651        }
7652}
7653
7654/**
7655 * lpfc_post_init_setup - Perform necessary device post initialization setup.
7656 * @phba: pointer to lpfc hba data structure.
7657 *
7658 * This routine is invoked to perform all the necessary post initialization
7659 * setup for the device.
7660 **/
7661static void
7662lpfc_post_init_setup(struct lpfc_hba *phba)
7663{
7664        struct Scsi_Host  *shost;
7665        struct lpfc_adapter_event_header adapter_event;
7666
7667        /* Get the default values for Model Name and Description */
7668        lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
7669
7670        /*
7671         * hba setup may have changed the hba_queue_depth so we need to
7672         * adjust the value of can_queue.
7673         */
7674        shost = pci_get_drvdata(phba->pcidev);
7675        shost->can_queue = phba->cfg_hba_queue_depth - 10;
7676
7677        lpfc_host_attrib_init(shost);
7678
7679        if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7680                spin_lock_irq(shost->host_lock);
7681                lpfc_poll_start_timer(phba);
7682                spin_unlock_irq(shost->host_lock);
7683        }
7684
7685        lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7686                        "0428 Perform SCSI scan\n");
7687        /* Send board arrival event to upper layer */
7688        adapter_event.event_type = FC_REG_ADAPTER_EVENT;
7689        adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
7690        fc_host_post_vendor_event(shost, fc_get_event_number(),
7691                                  sizeof(adapter_event),
7692                                  (char *) &adapter_event,
7693                                  LPFC_NL_VENDOR_ID);
7694        return;
7695}
7696
7697/**
7698 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
7699 * @phba: pointer to lpfc hba data structure.
7700 *
7701 * This routine is invoked to set up the PCI device memory space for device
7702 * with SLI-3 interface spec.
7703 *
7704 * Return codes
7705 *      0 - successful
7706 *      other values - error
7707 **/
7708static int
7709lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
7710{
7711        struct pci_dev *pdev = phba->pcidev;
7712        unsigned long bar0map_len, bar2map_len;
7713        int i, hbq_count;
7714        void *ptr;
7715        int error;
7716
7717        if (!pdev)
7718                return -ENODEV;
7719
7720        /* Set the device DMA mask size */
7721        error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
7722        if (error)
7723                error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
7724        if (error)
7725                return error;
7726        error = -ENODEV;
7727
7728        /* Get the bus address of Bar0 and Bar2 and the number of bytes
7729         * required by each mapping.
7730         */
7731        phba->pci_bar0_map = pci_resource_start(pdev, 0);
7732        bar0map_len = pci_resource_len(pdev, 0);
7733
7734        phba->pci_bar2_map = pci_resource_start(pdev, 2);
7735        bar2map_len = pci_resource_len(pdev, 2);
7736
7737        /* Map HBA SLIM to a kernel virtual address. */
7738        phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
7739        if (!phba->slim_memmap_p) {
7740                dev_printk(KERN_ERR, &pdev->dev,
7741                           "ioremap failed for SLIM memory.\n");
7742                goto out;
7743        }
7744
7745        /* Map HBA Control Registers to a kernel virtual address. */
7746        phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
7747        if (!phba->ctrl_regs_memmap_p) {
7748                dev_printk(KERN_ERR, &pdev->dev,
7749                           "ioremap failed for HBA control registers.\n");
7750                goto out_iounmap_slim;
7751        }
7752
7753        /* Allocate memory for SLI-2 structures */
7754        phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7755                                               &phba->slim2p.phys, GFP_KERNEL);
7756        if (!phba->slim2p.virt)
7757                goto out_iounmap;
7758
7759        phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7760        phba->mbox_ext = (phba->slim2p.virt +
7761                offsetof(struct lpfc_sli2_slim, mbx_ext_words));
7762        phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
7763        phba->IOCBs = (phba->slim2p.virt +
7764                       offsetof(struct lpfc_sli2_slim, IOCBs));
7765
7766        phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
7767                                                 lpfc_sli_hbq_size(),
7768                                                 &phba->hbqslimp.phys,
7769                                                 GFP_KERNEL);
7770        if (!phba->hbqslimp.virt)
7771                goto out_free_slim;
7772
7773        hbq_count = lpfc_sli_hbq_count();
7774        ptr = phba->hbqslimp.virt;
7775        for (i = 0; i < hbq_count; ++i) {
7776                phba->hbqs[i].hbq_virt = ptr;
7777                INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
7778                ptr += (lpfc_hbq_defs[i]->entry_count *
7779                        sizeof(struct lpfc_hbq_entry));
7780        }
7781        phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
7782        phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
7783
7784        memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
7785
7786        phba->MBslimaddr = phba->slim_memmap_p;
7787        phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
7788        phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
7789        phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
7790        phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
7791
7792        return 0;
7793
7794out_free_slim:
7795        dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7796                          phba->slim2p.virt, phba->slim2p.phys);
7797out_iounmap:
7798        iounmap(phba->ctrl_regs_memmap_p);
7799out_iounmap_slim:
7800        iounmap(phba->slim_memmap_p);
7801out:
7802        return error;
7803}
7804
7805/**
7806 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
7807 * @phba: pointer to lpfc hba data structure.
7808 *
7809 * This routine is invoked to unset the PCI device memory space for device
7810 * with SLI-3 interface spec.
7811 **/
7812static void
7813lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
7814{
7815        struct pci_dev *pdev;
7816
7817        /* Obtain PCI device reference */
7818        if (!phba->pcidev)
7819                return;
7820        else
7821                pdev = phba->pcidev;
7822
7823        /* Free coherent DMA memory allocated */
7824        dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7825                          phba->hbqslimp.virt, phba->hbqslimp.phys);
7826        dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7827                          phba->slim2p.virt, phba->slim2p.phys);
7828
7829        /* I/O memory unmap */
7830        iounmap(phba->ctrl_regs_memmap_p);
7831        iounmap(phba->slim_memmap_p);
7832
7833        return;
7834}
7835
7836/**
7837 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
7838 * @phba: pointer to lpfc hba data structure.
7839 *
7840 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
7841 * done and check status.
7842 *
7843 * Return 0 if successful, otherwise -ENODEV.
7844 **/
7845int
7846lpfc_sli4_post_status_check(struct lpfc_hba *phba)
7847{
7848        struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
7849        struct lpfc_register reg_data;
7850        int i, port_error = 0;
7851        uint32_t if_type;
7852
7853        memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
7854        memset(&reg_data, 0, sizeof(reg_data));
7855        if (!phba->sli4_hba.PSMPHRregaddr)
7856                return -ENODEV;
7857
7858        /* Wait up to 30 seconds for the SLI Port POST done and ready */
7859        for (i = 0; i < 3000; i++) {
7860                if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
7861                        &portsmphr_reg.word0) ||
7862                        (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
7863                        /* Port has a fatal POST error, break out */
7864                        port_error = -ENODEV;
7865                        break;
7866                }
7867                if (LPFC_POST_STAGE_PORT_READY ==
7868                    bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
7869                        break;
7870                msleep(10);
7871        }
7872
7873        /*
7874         * If there was a port error during POST, then don't proceed with
7875         * other register reads as the data may not be valid.  Just exit.
7876         */
7877        if (port_error) {
7878                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7879                        "1408 Port Failed POST - portsmphr=0x%x, "
7880                        "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
7881                        "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
7882                        portsmphr_reg.word0,
7883                        bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
7884                        bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
7885                        bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
7886                        bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
7887                        bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
7888                        bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
7889                        bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
7890                        bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
7891        } else {
7892                lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7893                                "2534 Device Info: SLIFamily=0x%x, "
7894                                "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
7895                                "SLIHint_2=0x%x, FT=0x%x\n",
7896                                bf_get(lpfc_sli_intf_sli_family,
7897                                       &phba->sli4_hba.sli_intf),
7898                                bf_get(lpfc_sli_intf_slirev,
7899                                       &phba->sli4_hba.sli_intf),
7900                                bf_get(lpfc_sli_intf_if_type,
7901                                       &phba->sli4_hba.sli_intf),
7902                                bf_get(lpfc_sli_intf_sli_hint1,
7903                                       &phba->sli4_hba.sli_intf),
7904                                bf_get(lpfc_sli_intf_sli_hint2,
7905                                       &phba->sli4_hba.sli_intf),
7906                                bf_get(lpfc_sli_intf_func_type,
7907                                       &phba->sli4_hba.sli_intf));
7908                /*
7909                 * Check for other Port errors during the initialization
7910                 * process.  Fail the load if the port did not come up
7911                 * correctly.
7912                 */
7913                if_type = bf_get(lpfc_sli_intf_if_type,
7914                                 &phba->sli4_hba.sli_intf);
7915                switch (if_type) {
7916                case LPFC_SLI_INTF_IF_TYPE_0:
7917                        phba->sli4_hba.ue_mask_lo =
7918                              readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
7919                        phba->sli4_hba.ue_mask_hi =
7920                              readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
7921                        uerrlo_reg.word0 =
7922                              readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
7923                        uerrhi_reg.word0 =
7924                                readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
7925                        if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
7926                            (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
7927                                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7928                                                "1422 Unrecoverable Error "
7929                                                "Detected during POST "
7930                                                "uerr_lo_reg=0x%x, "
7931                                                "uerr_hi_reg=0x%x, "
7932                                                "ue_mask_lo_reg=0x%x, "
7933                                                "ue_mask_hi_reg=0x%x\n",
7934                                                uerrlo_reg.word0,
7935                                                uerrhi_reg.word0,
7936                                                phba->sli4_hba.ue_mask_lo,
7937                                                phba->sli4_hba.ue_mask_hi);
7938                                port_error = -ENODEV;
7939                        }
7940                        break;
7941                case LPFC_SLI_INTF_IF_TYPE_2:
7942                case LPFC_SLI_INTF_IF_TYPE_6:
7943                        /* Final checks.  The port status should be clean. */
7944                        if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
7945                                &reg_data.word0) ||
7946                                (bf_get(lpfc_sliport_status_err, &reg_data) &&
7947                                 !bf_get(lpfc_sliport_status_rn, &reg_data))) {
7948                                phba->work_status[0] =
7949                                        readl(phba->sli4_hba.u.if_type2.
7950                                              ERR1regaddr);
7951                                phba->work_status[1] =
7952                                        readl(phba->sli4_hba.u.if_type2.
7953                                              ERR2regaddr);
7954                                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7955                                        "2888 Unrecoverable port error "
7956                                        "following POST: port status reg "
7957                                        "0x%x, port_smphr reg 0x%x, "
7958                                        "error 1=0x%x, error 2=0x%x\n",
7959                                        reg_data.word0,
7960                                        portsmphr_reg.word0,
7961                                        phba->work_status[0],
7962                                        phba->work_status[1]);
7963                                port_error = -ENODEV;
7964                        }
7965                        break;
7966                case LPFC_SLI_INTF_IF_TYPE_1:
7967                default:
7968                        break;
7969                }
7970        }
7971        return port_error;
7972}
7973
7974/**
7975 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
7976 * @phba: pointer to lpfc hba data structure.
7977 * @if_type:  The SLI4 interface type getting configured.
7978 *
7979 * This routine is invoked to set up SLI4 BAR0 PCI config space register
7980 * memory map.
7981 **/
7982static void
7983lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
7984{
7985        switch (if_type) {
7986        case LPFC_SLI_INTF_IF_TYPE_0:
7987                phba->sli4_hba.u.if_type0.UERRLOregaddr =
7988                        phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
7989                phba->sli4_hba.u.if_type0.UERRHIregaddr =
7990                        phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
7991                phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
7992                        phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
7993                phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
7994                        phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
7995                phba->sli4_hba.SLIINTFregaddr =
7996                        phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7997                break;
7998        case LPFC_SLI_INTF_IF_TYPE_2:
7999                phba->sli4_hba.u.if_type2.EQDregaddr =
8000                        phba->sli4_hba.conf_regs_memmap_p +
8001                                                LPFC_CTL_PORT_EQ_DELAY_OFFSET;
8002                phba->sli4_hba.u.if_type2.ERR1regaddr =
8003                        phba->sli4_hba.conf_regs_memmap_p +
8004                                                LPFC_CTL_PORT_ER1_OFFSET;
8005                phba->sli4_hba.u.if_type2.ERR2regaddr =
8006                        phba->sli4_hba.conf_regs_memmap_p +
8007                                                LPFC_CTL_PORT_ER2_OFFSET;
8008                phba->sli4_hba.u.if_type2.CTRLregaddr =
8009                        phba->sli4_hba.conf_regs_memmap_p +
8010                                                LPFC_CTL_PORT_CTL_OFFSET;
8011                phba->sli4_hba.u.if_type2.STATUSregaddr =
8012                        phba->sli4_hba.conf_regs_memmap_p +
8013                                                LPFC_CTL_PORT_STA_OFFSET;
8014                phba->sli4_hba.SLIINTFregaddr =
8015                        phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
8016                phba->sli4_hba.PSMPHRregaddr =
8017                        phba->sli4_hba.conf_regs_memmap_p +
8018                                                LPFC_CTL_PORT_SEM_OFFSET;
8019                phba->sli4_hba.RQDBregaddr =
8020                        phba->sli4_hba.conf_regs_memmap_p +
8021                                                LPFC_ULP0_RQ_DOORBELL;
8022                phba->sli4_hba.WQDBregaddr =
8023                        phba->sli4_hba.conf_regs_memmap_p +
8024                                                LPFC_ULP0_WQ_DOORBELL;
8025                phba->sli4_hba.CQDBregaddr =
8026                        phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
8027                phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
8028                phba->sli4_hba.MQDBregaddr =
8029                        phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
8030                phba->sli4_hba.BMBXregaddr =
8031                        phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
8032                break;
8033        case LPFC_SLI_INTF_IF_TYPE_6:
8034                phba->sli4_hba.u.if_type2.EQDregaddr =
8035                        phba->sli4_hba.conf_regs_memmap_p +
8036                                                LPFC_CTL_PORT_EQ_DELAY_OFFSET;
8037                phba->sli4_hba.u.if_type2.ERR1regaddr =
8038                        phba->sli4_hba.conf_regs_memmap_p +
8039                                                LPFC_CTL_PORT_ER1_OFFSET;
8040                phba->sli4_hba.u.if_type2.ERR2regaddr =
8041                        phba->sli4_hba.conf_regs_memmap_p +
8042                                                LPFC_CTL_PORT_ER2_OFFSET;
8043                phba->sli4_hba.u.if_type2.CTRLregaddr =
8044                        phba->sli4_hba.conf_regs_memmap_p +
8045                                                LPFC_CTL_PORT_CTL_OFFSET;
8046                phba->sli4_hba.u.if_type2.STATUSregaddr =
8047                        phba->sli4_hba.conf_regs_memmap_p +
8048                                                LPFC_CTL_PORT_STA_OFFSET;
8049                phba->sli4_hba.PSMPHRregaddr =
8050                        phba->sli4_hba.conf_regs_memmap_p +
8051                                                LPFC_CTL_PORT_SEM_OFFSET;
8052                phba->sli4_hba.BMBXregaddr =
8053                        phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
8054                break;
8055        case LPFC_SLI_INTF_IF_TYPE_1:
8056        default:
8057                dev_printk(KERN_ERR, &phba->pcidev->dev,
8058                           "FATAL - unsupported SLI4 interface type - %d\n",
8059                           if_type);
8060                break;
8061        }
8062}
8063
8064/**
8065 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
8066 * @phba: pointer to lpfc hba data structure.
8067 *
8068 * This routine is invoked to set up SLI4 BAR1 register memory map.
8069 **/
8070static void
8071lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
8072{
8073        switch (if_type) {
8074        case LPFC_SLI_INTF_IF_TYPE_0:
8075                phba->sli4_hba.PSMPHRregaddr =
8076                        phba->sli4_hba.ctrl_regs_memmap_p +
8077                        LPFC_SLIPORT_IF0_SMPHR;
8078                phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8079                        LPFC_HST_ISR0;
8080                phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8081                        LPFC_HST_IMR0;
8082                phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8083                        LPFC_HST_ISCR0;
8084                break;
8085        case LPFC_SLI_INTF_IF_TYPE_6:
8086                phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8087                        LPFC_IF6_RQ_DOORBELL;
8088                phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8089                        LPFC_IF6_WQ_DOORBELL;
8090                phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8091                        LPFC_IF6_CQ_DOORBELL;
8092                phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8093                        LPFC_IF6_EQ_DOORBELL;
8094                phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8095                        LPFC_IF6_MQ_DOORBELL;
8096                break;
8097        case LPFC_SLI_INTF_IF_TYPE_2:
8098        case LPFC_SLI_INTF_IF_TYPE_1:
8099        default:
8100                dev_err(&phba->pcidev->dev,
8101                           "FATAL - unsupported SLI4 interface type - %d\n",
8102                           if_type);
8103                break;
8104        }
8105}
8106
8107/**
8108 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
8109 * @phba: pointer to lpfc hba data structure.
8110 * @vf: virtual function number
8111 *
8112 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
8113 * based on the given viftual function number, @vf.
8114 *
8115 * Return 0 if successful, otherwise -ENODEV.
8116 **/
8117static int
8118lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
8119{
8120        if (vf > LPFC_VIR_FUNC_MAX)
8121                return -ENODEV;
8122
8123        phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8124                                vf * LPFC_VFR_PAGE_SIZE +
8125                                        LPFC_ULP0_RQ_DOORBELL);
8126        phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8127                                vf * LPFC_VFR_PAGE_SIZE +
8128                                        LPFC_ULP0_WQ_DOORBELL);
8129        phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8130                                vf * LPFC_VFR_PAGE_SIZE +
8131                                        LPFC_EQCQ_DOORBELL);
8132        phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
8133        phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8134                                vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
8135        phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8136                                vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
8137        return 0;
8138}
8139
8140/**
8141 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
8142 * @phba: pointer to lpfc hba data structure.
8143 *
8144 * This routine is invoked to create the bootstrap mailbox
8145 * region consistent with the SLI-4 interface spec.  This
8146 * routine allocates all memory necessary to communicate
8147 * mailbox commands to the port and sets up all alignment
8148 * needs.  No locks are expected to be held when calling
8149 * this routine.
8150 *
8151 * Return codes
8152 *      0 - successful
8153 *      -ENOMEM - could not allocated memory.
8154 **/
8155static int
8156lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
8157{
8158        uint32_t bmbx_size;
8159        struct lpfc_dmabuf *dmabuf;
8160        struct dma_address *dma_address;
8161        uint32_t pa_addr;
8162        uint64_t phys_addr;
8163
8164        dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
8165        if (!dmabuf)
8166                return -ENOMEM;
8167
8168        /*
8169         * The bootstrap mailbox region is comprised of 2 parts
8170         * plus an alignment restriction of 16 bytes.
8171         */
8172        bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
8173        dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, bmbx_size,
8174                                          &dmabuf->phys, GFP_KERNEL);
8175        if (!dmabuf->virt) {
8176                kfree(dmabuf);
8177                return -ENOMEM;
8178        }
8179
8180        /*
8181         * Initialize the bootstrap mailbox pointers now so that the register
8182         * operations are simple later.  The mailbox dma address is required
8183         * to be 16-byte aligned.  Also align the virtual memory as each
8184         * maibox is copied into the bmbx mailbox region before issuing the
8185         * command to the port.
8186         */
8187        phba->sli4_hba.bmbx.dmabuf = dmabuf;
8188        phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
8189
8190        phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
8191                                              LPFC_ALIGN_16_BYTE);
8192        phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
8193                                              LPFC_ALIGN_16_BYTE);
8194
8195        /*
8196         * Set the high and low physical addresses now.  The SLI4 alignment
8197         * requirement is 16 bytes and the mailbox is posted to the port
8198         * as two 30-bit addresses.  The other data is a bit marking whether
8199         * the 30-bit address is the high or low address.
8200         * Upcast bmbx aphys to 64bits so shift instruction compiles
8201         * clean on 32 bit machines.
8202         */
8203        dma_address = &phba->sli4_hba.bmbx.dma_address;
8204        phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
8205        pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
8206        dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
8207                                           LPFC_BMBX_BIT1_ADDR_HI);
8208
8209        pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
8210        dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
8211                                           LPFC_BMBX_BIT1_ADDR_LO);
8212        return 0;
8213}
8214
8215/**
8216 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
8217 * @phba: pointer to lpfc hba data structure.
8218 *
8219 * This routine is invoked to teardown the bootstrap mailbox
8220 * region and release all host resources. This routine requires
8221 * the caller to ensure all mailbox commands recovered, no
8222 * additional mailbox comands are sent, and interrupts are disabled
8223 * before calling this routine.
8224 *
8225 **/
8226static void
8227lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
8228{
8229        dma_free_coherent(&phba->pcidev->dev,
8230                          phba->sli4_hba.bmbx.bmbx_size,
8231                          phba->sli4_hba.bmbx.dmabuf->virt,
8232                          phba->sli4_hba.bmbx.dmabuf->phys);
8233
8234        kfree(phba->sli4_hba.bmbx.dmabuf);
8235        memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
8236}
8237
8238/**
8239 * lpfc_sli4_read_config - Get the config parameters.
8240 * @phba: pointer to lpfc hba data structure.
8241 *
8242 * This routine is invoked to read the configuration parameters from the HBA.
8243 * The configuration parameters are used to set the base and maximum values
8244 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
8245 * allocation for the port.
8246 *
8247 * Return codes
8248 *      0 - successful
8249 *      -ENOMEM - No available memory
8250 *      -EIO - The mailbox failed to complete successfully.
8251 **/
8252int
8253lpfc_sli4_read_config(struct lpfc_hba *phba)
8254{
8255        LPFC_MBOXQ_t *pmb;
8256        struct lpfc_mbx_read_config *rd_config;
8257        union  lpfc_sli4_cfg_shdr *shdr;
8258        uint32_t shdr_status, shdr_add_status;
8259        struct lpfc_mbx_get_func_cfg *get_func_cfg;
8260        struct lpfc_rsrc_desc_fcfcoe *desc;
8261        char *pdesc_0;
8262        uint16_t forced_link_speed;
8263        uint32_t if_type, qmin;
8264        int length, i, rc = 0, rc2;
8265
8266        pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8267        if (!pmb) {
8268                lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8269                                "2011 Unable to allocate memory for issuing "
8270                                "SLI_CONFIG_SPECIAL mailbox command\n");
8271                return -ENOMEM;
8272        }
8273
8274        lpfc_read_config(phba, pmb);
8275
8276        rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8277        if (rc != MBX_SUCCESS) {
8278                lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8279                        "2012 Mailbox failed , mbxCmd x%x "
8280                        "READ_CONFIG, mbxStatus x%x\n",
8281                        bf_get(lpfc_mqe_command, &pmb->u.mqe),
8282                        bf_get(lpfc_mqe_status, &pmb->u.mqe));
8283                rc = -EIO;
8284        } else {
8285                rd_config = &pmb->u.mqe.un.rd_config;
8286                if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
8287                        phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
8288                        phba->sli4_hba.lnk_info.lnk_tp =
8289                                bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
8290                        phba->sli4_hba.lnk_info.lnk_no =
8291                                bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
8292                        lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8293                                        "3081 lnk_type:%d, lnk_numb:%d\n",
8294                                        phba->sli4_hba.lnk_info.lnk_tp,
8295                                        phba->sli4_hba.lnk_info.lnk_no);
8296                } else
8297                        lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8298                                        "3082 Mailbox (x%x) returned ldv:x0\n",
8299                                        bf_get(lpfc_mqe_command, &pmb->u.mqe));
8300                if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
8301                        phba->bbcredit_support = 1;
8302                        phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
8303                }
8304
8305                phba->sli4_hba.conf_trunk =
8306                        bf_get(lpfc_mbx_rd_conf_trunk, rd_config);
8307                phba->sli4_hba.extents_in_use =
8308                        bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
8309                phba->sli4_hba.max_cfg_param.max_xri =
8310                        bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
8311                /* Reduce resource usage in kdump environment */
8312                if (is_kdump_kernel() &&
8313                    phba->sli4_hba.max_cfg_param.max_xri > 512)
8314                        phba->sli4_hba.max_cfg_param.max_xri = 512;
8315                phba->sli4_hba.max_cfg_param.xri_base =
8316                        bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
8317                phba->sli4_hba.max_cfg_param.max_vpi =
8318                        bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
8319                /* Limit the max we support */
8320                if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS)
8321                        phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS;
8322                phba->sli4_hba.max_cfg_param.vpi_base =
8323                        bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
8324                phba->sli4_hba.max_cfg_param.max_rpi =
8325                        bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
8326                phba->sli4_hba.max_cfg_param.rpi_base =
8327                        bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
8328                phba->sli4_hba.max_cfg_param.max_vfi =
8329                        bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
8330                phba->sli4_hba.max_cfg_param.vfi_base =
8331                        bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
8332                phba->sli4_hba.max_cfg_param.max_fcfi =
8333                        bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
8334                phba->sli4_hba.max_cfg_param.max_eq =
8335                        bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
8336                phba->sli4_hba.max_cfg_param.max_rq =
8337                        bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
8338                phba->sli4_hba.max_cfg_param.max_wq =
8339                        bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
8340                phba->sli4_hba.max_cfg_param.max_cq =
8341                        bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
8342                phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
8343                phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
8344                phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
8345                phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
8346                phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
8347                                (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
8348                phba->max_vports = phba->max_vpi;
8349                lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8350                                "2003 cfg params Extents? %d "
8351                                "XRI(B:%d M:%d), "
8352                                "VPI(B:%d M:%d) "
8353                                "VFI(B:%d M:%d) "
8354                                "RPI(B:%d M:%d) "
8355                                "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n",
8356                                phba->sli4_hba.extents_in_use,
8357                                phba->sli4_hba.max_cfg_param.xri_base,
8358                                phba->sli4_hba.max_cfg_param.max_xri,
8359                                phba->sli4_hba.max_cfg_param.vpi_base,
8360                                phba->sli4_hba.max_cfg_param.max_vpi,
8361                                phba->sli4_hba.max_cfg_param.vfi_base,
8362                                phba->sli4_hba.max_cfg_param.max_vfi,
8363                                phba->sli4_hba.max_cfg_param.rpi_base,
8364                                phba->sli4_hba.max_cfg_param.max_rpi,
8365                                phba->sli4_hba.max_cfg_param.max_fcfi,
8366                                phba->sli4_hba.max_cfg_param.max_eq,
8367                                phba->sli4_hba.max_cfg_param.max_cq,
8368                                phba->sli4_hba.max_cfg_param.max_wq,
8369                                phba->sli4_hba.max_cfg_param.max_rq);
8370
8371                /*
8372                 * Calculate queue resources based on how
8373                 * many WQ/CQ/EQs are available.
8374                 */
8375                qmin = phba->sli4_hba.max_cfg_param.max_wq;
8376                if (phba->sli4_hba.max_cfg_param.max_cq < qmin)
8377                        qmin = phba->sli4_hba.max_cfg_param.max_cq;
8378                if (phba->sli4_hba.max_cfg_param.max_eq < qmin)
8379                        qmin = phba->sli4_hba.max_cfg_param.max_eq;
8380                /*
8381                 * Whats left after this can go toward NVME / FCP.
8382                 * The minus 4 accounts for ELS, NVME LS, MBOX
8383                 * plus one extra. When configured for
8384                 * NVMET, FCP io channel WQs are not created.
8385                 */
8386                qmin -= 4;
8387
8388                /* Check to see if there is enough for NVME */
8389                if ((phba->cfg_irq_chann > qmin) ||
8390                    (phba->cfg_hdw_queue > qmin)) {
8391                        lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8392                                        "2005 Reducing Queues: "
8393                                        "WQ %d CQ %d EQ %d: min %d: "
8394                                        "IRQ %d HDWQ %d\n",
8395                                        phba->sli4_hba.max_cfg_param.max_wq,
8396                                        phba->sli4_hba.max_cfg_param.max_cq,
8397                                        phba->sli4_hba.max_cfg_param.max_eq,
8398                                        qmin, phba->cfg_irq_chann,
8399                                        phba->cfg_hdw_queue);
8400
8401                        if (phba->cfg_irq_chann > qmin)
8402                                phba->cfg_irq_chann = qmin;
8403                        if (phba->cfg_hdw_queue > qmin)
8404                                phba->cfg_hdw_queue = qmin;
8405                }
8406        }
8407
8408        if (rc)
8409                goto read_cfg_out;
8410
8411        /* Update link speed if forced link speed is supported */
8412        if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8413        if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
8414                forced_link_speed =
8415                        bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
8416                if (forced_link_speed) {
8417                        phba->hba_flag |= HBA_FORCED_LINK_SPEED;
8418
8419                        switch (forced_link_speed) {
8420                        case LINK_SPEED_1G:
8421                                phba->cfg_link_speed =
8422                                        LPFC_USER_LINK_SPEED_1G;
8423                                break;
8424                        case LINK_SPEED_2G:
8425                                phba->cfg_link_speed =
8426                                        LPFC_USER_LINK_SPEED_2G;
8427                                break;
8428                        case LINK_SPEED_4G:
8429                                phba->cfg_link_speed =
8430                                        LPFC_USER_LINK_SPEED_4G;
8431                                break;
8432                        case LINK_SPEED_8G:
8433                                phba->cfg_link_speed =
8434                                        LPFC_USER_LINK_SPEED_8G;
8435                                break;
8436                        case LINK_SPEED_10G:
8437                                phba->cfg_link_speed =
8438                                        LPFC_USER_LINK_SPEED_10G;
8439                                break;
8440                        case LINK_SPEED_16G:
8441                                phba->cfg_link_speed =
8442                                        LPFC_USER_LINK_SPEED_16G;
8443                                break;
8444                        case LINK_SPEED_32G:
8445                                phba->cfg_link_speed =
8446                                        LPFC_USER_LINK_SPEED_32G;
8447                                break;
8448                        case LINK_SPEED_64G:
8449                                phba->cfg_link_speed =
8450                                        LPFC_USER_LINK_SPEED_64G;
8451                                break;
8452                        case 0xffff:
8453                                phba->cfg_link_speed =
8454                                        LPFC_USER_LINK_SPEED_AUTO;
8455                                break;
8456                        default:
8457                                lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8458                                                "0047 Unrecognized link "
8459                                                "speed : %d\n",
8460                                                forced_link_speed);
8461                                phba->cfg_link_speed =
8462                                        LPFC_USER_LINK_SPEED_AUTO;
8463                        }
8464                }
8465        }
8466
8467        /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
8468        length = phba->sli4_hba.max_cfg_param.max_xri -
8469                        lpfc_sli4_get_els_iocb_cnt(phba);
8470        if (phba->cfg_hba_queue_depth > length) {
8471                lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8472                                "3361 HBA queue depth changed from %d to %d\n",
8473                                phba->cfg_hba_queue_depth, length);
8474                phba->cfg_hba_queue_depth = length;
8475        }
8476
8477        if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
8478            LPFC_SLI_INTF_IF_TYPE_2)
8479                goto read_cfg_out;
8480
8481        /* get the pf# and vf# for SLI4 if_type 2 port */
8482        length = (sizeof(struct lpfc_mbx_get_func_cfg) -
8483                  sizeof(struct lpfc_sli4_cfg_mhdr));
8484        lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
8485                         LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
8486                         length, LPFC_SLI4_MBX_EMBED);
8487
8488        rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8489        shdr = (union lpfc_sli4_cfg_shdr *)
8490                                &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
8491        shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8492        shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
8493        if (rc2 || shdr_status || shdr_add_status) {
8494                lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8495                                "3026 Mailbox failed , mbxCmd x%x "
8496                                "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
8497                                bf_get(lpfc_mqe_command, &pmb->u.mqe),
8498                                bf_get(lpfc_mqe_status, &pmb->u.mqe));
8499                goto read_cfg_out;
8500        }
8501
8502        /* search for fc_fcoe resrouce descriptor */
8503        get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
8504
8505        pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
8506        desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
8507        length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
8508        if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
8509                length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
8510        else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
8511                goto read_cfg_out;
8512
8513        for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
8514                desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
8515                if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
8516                    bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
8517                        phba->sli4_hba.iov.pf_number =
8518                                bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
8519                        phba->sli4_hba.iov.vf_number =
8520                                bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
8521                        break;
8522                }
8523        }
8524
8525        if (i < LPFC_RSRC_DESC_MAX_NUM)
8526                lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8527                                "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
8528                                "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
8529                                phba->sli4_hba.iov.vf_number);
8530        else
8531                lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8532                                "3028 GET_FUNCTION_CONFIG: failed to find "
8533                                "Resource Descriptor:x%x\n",
8534                                LPFC_RSRC_DESC_TYPE_FCFCOE);
8535
8536read_cfg_out:
8537        mempool_free(pmb, phba->mbox_mem_pool);
8538        return rc;
8539}
8540
8541/**
8542 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
8543 * @phba: pointer to lpfc hba data structure.
8544 *
8545 * This routine is invoked to setup the port-side endian order when
8546 * the port if_type is 0.  This routine has no function for other
8547 * if_types.
8548 *
8549 * Return codes
8550 *      0 - successful
8551 *      -ENOMEM - No available memory
8552 *      -EIO - The mailbox failed to complete successfully.
8553 **/
8554static int
8555lpfc_setup_endian_order(struct lpfc_hba *phba)
8556{
8557        LPFC_MBOXQ_t *mboxq;
8558        uint32_t if_type, rc = 0;
8559        uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
8560                                      HOST_ENDIAN_HIGH_WORD1};
8561
8562        if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8563        switch (if_type) {
8564        case LPFC_SLI_INTF_IF_TYPE_0:
8565                mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8566                                                       GFP_KERNEL);
8567                if (!mboxq) {
8568                        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8569                                        "0492 Unable to allocate memory for "
8570                                        "issuing SLI_CONFIG_SPECIAL mailbox "
8571                                        "command\n");
8572                        return -ENOMEM;
8573                }
8574
8575                /*
8576                 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
8577                 * two words to contain special data values and no other data.
8578                 */
8579                memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
8580                memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
8581                rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8582                if (rc != MBX_SUCCESS) {
8583                        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8584                                        "0493 SLI_CONFIG_SPECIAL mailbox "
8585                                        "failed with status x%x\n",
8586                                        rc);
8587                        rc = -EIO;
8588                }
8589                mempool_free(mboxq, phba->mbox_mem_pool);
8590                break;
8591        case LPFC_SLI_INTF_IF_TYPE_6:
8592        case LPFC_SLI_INTF_IF_TYPE_2:
8593        case LPFC_SLI_INTF_IF_TYPE_1:
8594        default:
8595                break;
8596        }
8597        return rc;
8598}
8599
8600/**
8601 * lpfc_sli4_queue_verify - Verify and update EQ counts
8602 * @phba: pointer to lpfc hba data structure.
8603 *
8604 * This routine is invoked to check the user settable queue counts for EQs.
8605 * After this routine is called the counts will be set to valid values that
8606 * adhere to the constraints of the system's interrupt vectors and the port's
8607 * queue resources.
8608 *
8609 * Return codes
8610 *      0 - successful
8611 *      -ENOMEM - No available memory
8612 **/
8613static int
8614lpfc_sli4_queue_verify(struct lpfc_hba *phba)
8615{
8616        /*
8617         * Sanity check for configured queue parameters against the run-time
8618         * device parameters
8619         */
8620
8621        if (phba->nvmet_support) {
8622                if (phba->cfg_irq_chann < phba->cfg_nvmet_mrq)
8623                        phba->cfg_nvmet_mrq = phba->cfg_irq_chann;
8624                if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
8625                        phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
8626        }
8627
8628        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8629                        "2574 IO channels: hdwQ %d IRQ %d MRQ: %d\n",
8630                        phba->cfg_hdw_queue, phba->cfg_irq_chann,
8631                        phba->cfg_nvmet_mrq);
8632
8633        /* Get EQ depth from module parameter, fake the default for now */
8634        phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8635        phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8636
8637        /* Get CQ depth from module parameter, fake the default for now */
8638        phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8639        phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8640        return 0;
8641}
8642
8643static int
8644lpfc_alloc_io_wq_cq(struct lpfc_hba *phba, int idx)
8645{
8646        struct lpfc_queue *qdesc;
8647        u32 wqesize;
8648        int cpu;
8649
8650        cpu = lpfc_find_cpu_handle(phba, idx, LPFC_FIND_BY_HDWQ);
8651        /* Create Fast Path IO CQs */
8652        if (phba->enab_exp_wqcq_pages)
8653                /* Increase the CQ size when WQEs contain an embedded cdb */
8654                qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8655                                              phba->sli4_hba.cq_esize,
8656                                              LPFC_CQE_EXP_COUNT, cpu);
8657
8658        else
8659                qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8660                                              phba->sli4_hba.cq_esize,
8661                                              phba->sli4_hba.cq_ecount, cpu);
8662        if (!qdesc) {
8663                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8664                        "0499 Failed allocate fast-path IO CQ (%d)\n", idx);
8665                return 1;
8666        }
8667        qdesc->qe_valid = 1;
8668        qdesc->hdwq = idx;
8669        qdesc->chann = cpu;
8670        phba->sli4_hba.hdwq[idx].io_cq = qdesc;
8671
8672        /* Create Fast Path IO WQs */
8673        if (phba->enab_exp_wqcq_pages) {
8674                /* Increase the WQ size when WQEs contain an embedded cdb */
8675                wqesize = (phba->fcp_embed_io) ?
8676                        LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
8677                qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8678                                              wqesize,
8679                                              LPFC_WQE_EXP_COUNT, cpu);
8680        } else
8681                qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8682                                              phba->sli4_hba.wq_esize,
8683                                              phba->sli4_hba.wq_ecount, cpu);
8684
8685        if (!qdesc) {
8686                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8687                                "0503 Failed allocate fast-path IO WQ (%d)\n",
8688                                idx);
8689                return 1;
8690        }
8691        qdesc->hdwq = idx;
8692        qdesc->chann = cpu;
8693        phba->sli4_hba.hdwq[idx].io_wq = qdesc;
8694        list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8695        return 0;
8696}
8697
8698/**
8699 * lpfc_sli4_queue_create - Create all the SLI4 queues
8700 * @phba: pointer to lpfc hba data structure.
8701 *
8702 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
8703 * operation. For each SLI4 queue type, the parameters such as queue entry
8704 * count (queue depth) shall be taken from the module parameter. For now,
8705 * we just use some constant number as place holder.
8706 *
8707 * Return codes
8708 *      0 - successful
8709 *      -ENOMEM - No availble memory
8710 *      -EIO - The mailbox failed to complete successfully.
8711 **/
8712int
8713lpfc_sli4_queue_create(struct lpfc_hba *phba)
8714{
8715        struct lpfc_queue *qdesc;
8716        int idx, cpu, eqcpu;
8717        struct lpfc_sli4_hdw_queue *qp;
8718        struct lpfc_vector_map_info *cpup;
8719        struct lpfc_vector_map_info *eqcpup;
8720        struct lpfc_eq_intr_info *eqi;
8721
8722        /*
8723         * Create HBA Record arrays.
8724         * Both NVME and FCP will share that same vectors / EQs
8725         */
8726        phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
8727        phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
8728        phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
8729        phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
8730        phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
8731        phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
8732        phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8733        phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8734        phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8735        phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8736
8737        if (!phba->sli4_hba.hdwq) {
8738                phba->sli4_hba.hdwq = kcalloc(
8739                        phba->cfg_hdw_queue, sizeof(struct lpfc_sli4_hdw_queue),
8740                        GFP_KERNEL);
8741                if (!phba->sli4_hba.hdwq) {
8742                        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8743                                        "6427 Failed allocate memory for "
8744                                        "fast-path Hardware Queue array\n");
8745                        goto out_error;
8746                }
8747                /* Prepare hardware queues to take IO buffers */
8748                for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
8749                        qp = &phba->sli4_hba.hdwq[idx];
8750                        spin_lock_init(&qp->io_buf_list_get_lock);
8751                        spin_lock_init(&qp->io_buf_list_put_lock);
8752                        INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
8753                        INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
8754                        qp->get_io_bufs = 0;
8755                        qp->put_io_bufs = 0;
8756                        qp->total_io_bufs = 0;
8757                        spin_lock_init(&qp->abts_io_buf_list_lock);
8758                        INIT_LIST_HEAD(&qp->lpfc_abts_io_buf_list);
8759                        qp->abts_scsi_io_bufs = 0;
8760                        qp->abts_nvme_io_bufs = 0;
8761                        INIT_LIST_HEAD(&qp->sgl_list);
8762                        INIT_LIST_HEAD(&qp->cmd_rsp_buf_list);
8763                        spin_lock_init(&qp->hdwq_lock);
8764                }
8765        }
8766
8767        if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8768                if (phba->nvmet_support) {
8769                        phba->sli4_hba.nvmet_cqset = kcalloc(
8770                                        phba->cfg_nvmet_mrq,
8771                                        sizeof(struct lpfc_queue *),
8772                                        GFP_KERNEL);
8773                        if (!phba->sli4_hba.nvmet_cqset) {
8774                                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8775                                        "3121 Fail allocate memory for "
8776                                        "fast-path CQ set array\n");
8777                                goto out_error;
8778                        }
8779                        phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
8780                                        phba->cfg_nvmet_mrq,
8781                                        sizeof(struct lpfc_queue *),
8782                                        GFP_KERNEL);
8783                        if (!phba->sli4_hba.nvmet_mrq_hdr) {
8784                                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8785                                        "3122 Fail allocate memory for "
8786                                        "fast-path RQ set hdr array\n");
8787                                goto out_error;
8788                        }
8789                        phba->sli4_hba.nvmet_mrq_data = kcalloc(
8790                                        phba->cfg_nvmet_mrq,
8791                                        sizeof(struct lpfc_queue *),
8792                                        GFP_KERNEL);
8793                        if (!phba->sli4_hba.nvmet_mrq_data) {
8794                                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8795                                        "3124 Fail allocate memory for "
8796                                        "fast-path RQ set data array\n");
8797                                goto out_error;
8798                        }
8799                }
8800        }
8801
8802        INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8803
8804        /* Create HBA Event Queues (EQs) */
8805        for_each_present_cpu(cpu) {
8806                /* We only want to create 1 EQ per vector, even though
8807                 * multiple CPUs might be using that vector. so only
8808                 * selects the CPUs that are LPFC_CPU_FIRST_IRQ.
8809                 */
8810                cpup = &phba->sli4_hba.cpu_map[cpu];
8811                if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
8812                        continue;
8813
8814                /* Get a ptr to the Hardware Queue associated with this CPU */
8815                qp = &phba->sli4_hba.hdwq[cpup->hdwq];
8816
8817                /* Allocate an EQ */
8818                qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8819                                              phba->sli4_hba.eq_esize,
8820                                              phba->sli4_hba.eq_ecount, cpu);
8821                if (!qdesc) {
8822                        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8823                                        "0497 Failed allocate EQ (%d)\n",
8824                                        cpup->hdwq);
8825                        goto out_error;
8826                }
8827                qdesc->qe_valid = 1;
8828                qdesc->hdwq = cpup->hdwq;
8829                qdesc->chann = cpu; /* First CPU this EQ is affinitized to */
8830                qdesc->last_cpu = qdesc->chann;
8831
8832                /* Save the allocated EQ in the Hardware Queue */
8833                qp->hba_eq = qdesc;
8834
8835                eqi = per_cpu_ptr(phba->sli4_hba.eq_info, qdesc->last_cpu);
8836                list_add(&qdesc->cpu_list, &eqi->list);
8837        }
8838
8839        /* Now we need to populate the other Hardware Queues, that share
8840         * an IRQ vector, with the associated EQ ptr.
8841         */
8842        for_each_present_cpu(cpu) {
8843                cpup = &phba->sli4_hba.cpu_map[cpu];
8844
8845                /* Check for EQ already allocated in previous loop */
8846                if (cpup->flag & LPFC_CPU_FIRST_IRQ)
8847                        continue;
8848
8849                /* Check for multiple CPUs per hdwq */
8850                qp = &phba->sli4_hba.hdwq[cpup->hdwq];
8851                if (qp->hba_eq)
8852                        continue;
8853
8854                /* We need to share an EQ for this hdwq */
8855                eqcpu = lpfc_find_cpu_handle(phba, cpup->eq, LPFC_FIND_BY_EQ);
8856                eqcpup = &phba->sli4_hba.cpu_map[eqcpu];
8857                qp->hba_eq = phba->sli4_hba.hdwq[eqcpup->hdwq].hba_eq;
8858        }
8859
8860        /* Allocate IO Path SLI4 CQ/WQs */
8861        for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
8862                if (lpfc_alloc_io_wq_cq(phba, idx))
8863                        goto out_error;
8864        }
8865
8866        if (phba->nvmet_support) {
8867                for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8868                        cpu = lpfc_find_cpu_handle(phba, idx,
8869                                                   LPFC_FIND_BY_HDWQ);
8870                        qdesc = lpfc_sli4_queue_alloc(phba,
8871                                                      LPFC_DEFAULT_PAGE_SIZE,
8872                                                      phba->sli4_hba.cq_esize,
8873                                                      phba->sli4_hba.cq_ecount,
8874                                                      cpu);
8875                        if (!qdesc) {
8876                                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8877                                                "3142 Failed allocate NVME "
8878                                                "CQ Set (%d)\n", idx);
8879                                goto out_error;
8880                        }
8881                        qdesc->qe_valid = 1;
8882                        qdesc->hdwq = idx;
8883                        qdesc->chann = cpu;
8884                        phba->sli4_hba.nvmet_cqset[idx] = qdesc;
8885                }
8886        }
8887
8888        /*
8889         * Create Slow Path Completion Queues (CQs)
8890         */
8891
8892        cpu = lpfc_find_cpu_handle(phba, 0, LPFC_FIND_BY_EQ);
8893        /* Create slow-path Mailbox Command Complete Queue */
8894        qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8895                                      phba->sli4_hba.cq_esize,
8896                                      phba->sli4_hba.cq_ecount, cpu);
8897        if (!qdesc) {
8898                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8899                                "0500 Failed allocate slow-path mailbox CQ\n");
8900                goto out_error;
8901        }
8902        qdesc->qe_valid = 1;
8903        phba->sli4_hba.mbx_cq = qdesc;
8904
8905        /* Create slow-path ELS Complete Queue */
8906        qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8907                                      phba->sli4_hba.cq_esize,
8908                                      phba->sli4_hba.cq_ecount, cpu);
8909        if (!qdesc) {
8910                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8911                                "0501 Failed allocate slow-path ELS CQ\n");
8912                goto out_error;
8913        }
8914        qdesc->qe_valid = 1;
8915        qdesc->chann = cpu;
8916        phba->sli4_hba.els_cq = qdesc;
8917
8918
8919        /*
8920         * Create Slow Path Work Queues (WQs)
8921         */
8922
8923        /* Create Mailbox Command Queue */
8924
8925        qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8926                                      phba->sli4_hba.mq_esize,
8927                                      phba->sli4_hba.mq_ecount, cpu);
8928        if (!qdesc) {
8929                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8930                                "0505 Failed allocate slow-path MQ\n");
8931                goto out_error;
8932        }
8933        qdesc->chann = cpu;
8934        phba->sli4_hba.mbx_wq = qdesc;
8935
8936        /*
8937         * Create ELS Work Queues
8938         */
8939
8940        /* Create slow-path ELS Work Queue */
8941        qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8942                                      phba->sli4_hba.wq_esize,
8943                                      phba->sli4_hba.wq_ecount, cpu);
8944        if (!qdesc) {
8945                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8946                                "0504 Failed allocate slow-path ELS WQ\n");
8947                goto out_error;
8948        }
8949        qdesc->chann = cpu;
8950        phba->sli4_hba.els_wq = qdesc;
8951        list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8952
8953        if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8954                /* Create NVME LS Complete Queue */
8955                qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8956                                              phba->sli4_hba.cq_esize,
8957                                              phba->sli4_hba.cq_ecount, cpu);
8958                if (!qdesc) {
8959                        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8960                                        "6079 Failed allocate NVME LS CQ\n");
8961                        goto out_error;
8962                }
8963                qdesc->chann = cpu;
8964                qdesc->qe_valid = 1;
8965                phba->sli4_hba.nvmels_cq = qdesc;
8966
8967                /* Create NVME LS Work Queue */
8968                qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8969                                              phba->sli4_hba.wq_esize,
8970                                              phba->sli4_hba.wq_ecount, cpu);
8971                if (!qdesc) {
8972                        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8973                                        "6080 Failed allocate NVME LS WQ\n");
8974                        goto out_error;
8975                }
8976                qdesc->chann = cpu;
8977                phba->sli4_hba.nvmels_wq = qdesc;
8978                list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8979        }
8980
8981        /*
8982         * Create Receive Queue (RQ)
8983         */
8984
8985        /* Create Receive Queue for header */
8986        qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8987                                      phba->sli4_hba.rq_esize,
8988                                      phba->sli4_hba.rq_ecount, cpu);
8989        if (!qdesc) {
8990                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8991                                "0506 Failed allocate receive HRQ\n");
8992                goto out_error;
8993        }
8994        phba->sli4_hba.hdr_rq = qdesc;
8995
8996        /* Create Receive Queue for data */
8997        qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8998                                      phba->sli4_hba.rq_esize,
8999                                      phba->sli4_hba.rq_ecount, cpu);
9000        if (!qdesc) {
9001                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9002                                "0507 Failed allocate receive DRQ\n");
9003                goto out_error;
9004        }
9005        phba->sli4_hba.dat_rq = qdesc;
9006
9007        if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
9008            phba->nvmet_support) {
9009                for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
9010                        cpu = lpfc_find_cpu_handle(phba, idx,
9011                                                   LPFC_FIND_BY_HDWQ);
9012                        /* Create NVMET Receive Queue for header */
9013                        qdesc = lpfc_sli4_queue_alloc(phba,
9014                                                      LPFC_DEFAULT_PAGE_SIZE,
9015                                                      phba->sli4_hba.rq_esize,
9016                                                      LPFC_NVMET_RQE_DEF_COUNT,
9017                                                      cpu);
9018                        if (!qdesc) {
9019                                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9020                                                "3146 Failed allocate "
9021                                                "receive HRQ\n");
9022                                goto out_error;
9023                        }
9024                        qdesc->hdwq = idx;
9025                        phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
9026
9027                        /* Only needed for header of RQ pair */
9028                        qdesc->rqbp = kzalloc_node(sizeof(*qdesc->rqbp),
9029                                                   GFP_KERNEL,
9030                                                   cpu_to_node(cpu));
9031                        if (qdesc->rqbp == NULL) {
9032                                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9033                                                "6131 Failed allocate "
9034                                                "Header RQBP\n");
9035                                goto out_error;
9036                        }
9037
9038                        /* Put list in known state in case driver load fails. */
9039                        INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
9040
9041                        /* Create NVMET Receive Queue for data */
9042                        qdesc = lpfc_sli4_queue_alloc(phba,
9043                                                      LPFC_DEFAULT_PAGE_SIZE,
9044                                                      phba->sli4_hba.rq_esize,
9045                                                      LPFC_NVMET_RQE_DEF_COUNT,
9046                                                      cpu);
9047                        if (!qdesc) {
9048                                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9049                                                "3156 Failed allocate "
9050                                                "receive DRQ\n");
9051                                goto out_error;
9052                        }
9053                        qdesc->hdwq = idx;
9054                        phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
9055                }
9056        }
9057
9058        /* Clear NVME stats */
9059        if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9060                for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9061                        memset(&phba->sli4_hba.hdwq[idx].nvme_cstat, 0,
9062                               sizeof(phba->sli4_hba.hdwq[idx].nvme_cstat));
9063                }
9064        }
9065
9066        /* Clear SCSI stats */
9067        if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
9068                for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9069                        memset(&phba->sli4_hba.hdwq[idx].scsi_cstat, 0,
9070                               sizeof(phba->sli4_hba.hdwq[idx].scsi_cstat));
9071                }
9072        }
9073
9074        return 0;
9075
9076out_error:
9077        lpfc_sli4_queue_destroy(phba);
9078        return -ENOMEM;
9079}
9080
9081static inline void
9082__lpfc_sli4_release_queue(struct lpfc_queue **qp)
9083{
9084        if (*qp != NULL) {
9085                lpfc_sli4_queue_free(*qp);
9086                *qp = NULL;
9087        }
9088}
9089
9090static inline void
9091lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
9092{
9093        int idx;
9094
9095        if (*qs == NULL)
9096                return;
9097
9098        for (idx = 0; idx < max; idx++)
9099                __lpfc_sli4_release_queue(&(*qs)[idx]);
9100
9101        kfree(*qs);
9102        *qs = NULL;
9103}
9104
9105static inline void
9106lpfc_sli4_release_hdwq(struct lpfc_hba *phba)
9107{
9108        struct lpfc_sli4_hdw_queue *hdwq;
9109        struct lpfc_queue *eq;
9110        uint32_t idx;
9111
9112        hdwq = phba->sli4_hba.hdwq;
9113
9114        /* Loop thru all Hardware Queues */
9115        for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9116                /* Free the CQ/WQ corresponding to the Hardware Queue */
9117                lpfc_sli4_queue_free(hdwq[idx].io_cq);
9118                lpfc_sli4_queue_free(hdwq[idx].io_wq);
9119                hdwq[idx].io_cq = NULL;
9120                hdwq[idx].io_wq = NULL;
9121                if (phba->cfg_xpsgl && !phba->nvmet_support)
9122                        lpfc_free_sgl_per_hdwq(phba, &hdwq[idx]);
9123                lpfc_free_cmd_rsp_buf_per_hdwq(phba, &hdwq[idx]);
9124        }
9125        /* Loop thru all IRQ vectors */
9126        for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
9127                /* Free the EQ corresponding to the IRQ vector */
9128                eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
9129                lpfc_sli4_queue_free(eq);
9130                phba->sli4_hba.hba_eq_hdl[idx].eq = NULL;
9131        }
9132}
9133
9134/**
9135 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
9136 * @phba: pointer to lpfc hba data structure.
9137 *
9138 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
9139 * operation.
9140 *
9141 * Return codes
9142 *      0 - successful
9143 *      -ENOMEM - No available memory
9144 *      -EIO - The mailbox failed to complete successfully.
9145 **/
9146void
9147lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
9148{
9149        /*
9150         * Set FREE_INIT before beginning to free the queues.
9151         * Wait until the users of queues to acknowledge to
9152         * release queues by clearing FREE_WAIT.
9153         */
9154        spin_lock_irq(&phba->hbalock);
9155        phba->sli.sli_flag |= LPFC_QUEUE_FREE_INIT;
9156        while (phba->sli.sli_flag & LPFC_QUEUE_FREE_WAIT) {
9157                spin_unlock_irq(&phba->hbalock);
9158                msleep(20);
9159                spin_lock_irq(&phba->hbalock);
9160        }
9161        spin_unlock_irq(&phba->hbalock);
9162
9163        /* Release HBA eqs */
9164        if (phba->sli4_hba.hdwq)
9165                lpfc_sli4_release_hdwq(phba);
9166
9167        if (phba->nvmet_support) {
9168                lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
9169                                         phba->cfg_nvmet_mrq);
9170
9171                lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
9172                                         phba->cfg_nvmet_mrq);
9173                lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
9174                                         phba->cfg_nvmet_mrq);
9175        }
9176
9177        /* Release mailbox command work queue */
9178        __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
9179
9180        /* Release ELS work queue */
9181        __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
9182
9183        /* Release ELS work queue */
9184        __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
9185
9186        /* Release unsolicited receive queue */
9187        __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
9188        __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
9189
9190        /* Release ELS complete queue */
9191        __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
9192
9193        /* Release NVME LS complete queue */
9194        __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
9195
9196        /* Release mailbox command complete queue */
9197        __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
9198
9199        /* Everything on this list has been freed */
9200        INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
9201
9202        /* Done with freeing the queues */
9203        spin_lock_irq(&phba->hbalock);
9204        phba->sli.sli_flag &= ~LPFC_QUEUE_FREE_INIT;
9205        spin_unlock_irq(&phba->hbalock);
9206}
9207
9208int
9209lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
9210{
9211        struct lpfc_rqb *rqbp;
9212        struct lpfc_dmabuf *h_buf;
9213        struct rqb_dmabuf *rqb_buffer;
9214
9215        rqbp = rq->rqbp;
9216        while (!list_empty(&rqbp->rqb_buffer_list)) {
9217                list_remove_head(&rqbp->rqb_buffer_list, h_buf,
9218                                 struct lpfc_dmabuf, list);
9219
9220                rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
9221                (rqbp->rqb_free_buffer)(phba, rqb_buffer);
9222                rqbp->buffer_count--;
9223        }
9224        return 1;
9225}
9226
9227static int
9228lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
9229        struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
9230        int qidx, uint32_t qtype)
9231{
9232        struct lpfc_sli_ring *pring;
9233        int rc;
9234
9235        if (!eq || !cq || !wq) {
9236                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9237                        "6085 Fast-path %s (%d) not allocated\n",
9238                        ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
9239                return -ENOMEM;
9240        }
9241
9242        /* create the Cq first */
9243        rc = lpfc_cq_create(phba, cq, eq,
9244                        (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
9245        if (rc) {
9246                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9247                        "6086 Failed setup of CQ (%d), rc = 0x%x\n",
9248                        qidx, (uint32_t)rc);
9249                return rc;
9250        }
9251
9252        if (qtype != LPFC_MBOX) {
9253                /* Setup cq_map for fast lookup */
9254                if (cq_map)
9255                        *cq_map = cq->queue_id;
9256
9257                lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9258                        "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
9259                        qidx, cq->queue_id, qidx, eq->queue_id);
9260
9261                /* create the wq */
9262                rc = lpfc_wq_create(phba, wq, cq, qtype);
9263                if (rc) {
9264                        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9265                                "4618 Fail setup fastpath WQ (%d), rc = 0x%x\n",
9266                                qidx, (uint32_t)rc);
9267                        /* no need to tear down cq - caller will do so */
9268                        return rc;
9269                }
9270
9271                /* Bind this CQ/WQ to the NVME ring */
9272                pring = wq->pring;
9273                pring->sli.sli4.wqp = (void *)wq;
9274                cq->pring = pring;
9275
9276                lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9277                        "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
9278                        qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
9279        } else {
9280                rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
9281                if (rc) {
9282                        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9283                                "0539 Failed setup of slow-path MQ: "
9284                                "rc = 0x%x\n", rc);
9285                        /* no need to tear down cq - caller will do so */
9286                        return rc;
9287                }
9288
9289                lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9290                        "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
9291                        phba->sli4_hba.mbx_wq->queue_id,
9292                        phba->sli4_hba.mbx_cq->queue_id);
9293        }
9294
9295        return 0;
9296}
9297
9298/**
9299 * lpfc_setup_cq_lookup - Setup the CQ lookup table
9300 * @phba: pointer to lpfc hba data structure.
9301 *
9302 * This routine will populate the cq_lookup table by all
9303 * available CQ queue_id's.
9304 **/
9305static void
9306lpfc_setup_cq_lookup(struct lpfc_hba *phba)
9307{
9308        struct lpfc_queue *eq, *childq;
9309        int qidx;
9310
9311        memset(phba->sli4_hba.cq_lookup, 0,
9312               (sizeof(struct lpfc_queue *) * (phba->sli4_hba.cq_max + 1)));
9313        /* Loop thru all IRQ vectors */
9314        for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9315                /* Get the EQ corresponding to the IRQ vector */
9316                eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
9317                if (!eq)
9318                        continue;
9319                /* Loop through all CQs associated with that EQ */
9320                list_for_each_entry(childq, &eq->child_list, list) {
9321                        if (childq->queue_id > phba->sli4_hba.cq_max)
9322                                continue;
9323                        if (childq->subtype == LPFC_IO)
9324                                phba->sli4_hba.cq_lookup[childq->queue_id] =
9325                                        childq;
9326                }
9327        }
9328}
9329
9330/**
9331 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
9332 * @phba: pointer to lpfc hba data structure.
9333 *
9334 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
9335 * operation.
9336 *
9337 * Return codes
9338 *      0 - successful
9339 *      -ENOMEM - No available memory
9340 *      -EIO - The mailbox failed to complete successfully.
9341 **/
9342int
9343lpfc_sli4_queue_setup(struct lpfc_hba *phba)
9344{
9345        uint32_t shdr_status, shdr_add_status;
9346        union lpfc_sli4_cfg_shdr *shdr;
9347        struct lpfc_vector_map_info *cpup;
9348        struct lpfc_sli4_hdw_queue *qp;
9349        LPFC_MBOXQ_t *mboxq;
9350        int qidx, cpu;
9351        uint32_t length, usdelay;
9352        int rc = -ENOMEM;
9353
9354        /* Check for dual-ULP support */
9355        mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9356        if (!mboxq) {
9357                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9358                                "3249 Unable to allocate memory for "
9359                                "QUERY_FW_CFG mailbox command\n");
9360                return -ENOMEM;
9361        }
9362        length = (sizeof(struct lpfc_mbx_query_fw_config) -
9363                  sizeof(struct lpfc_sli4_cfg_mhdr));
9364        lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9365                         LPFC_MBOX_OPCODE_QUERY_FW_CFG,
9366                         length, LPFC_SLI4_MBX_EMBED);
9367
9368        rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9369
9370        shdr = (union lpfc_sli4_cfg_shdr *)
9371                        &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9372        shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9373        shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9374        if (shdr_status || shdr_add_status || rc) {
9375                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9376                                "3250 QUERY_FW_CFG mailbox failed with status "
9377                                "x%x add_status x%x, mbx status x%x\n",
9378                                shdr_status, shdr_add_status, rc);
9379                if (rc != MBX_TIMEOUT)
9380                        mempool_free(mboxq, phba->mbox_mem_pool);
9381                rc = -ENXIO;
9382                goto out_error;
9383        }
9384
9385        phba->sli4_hba.fw_func_mode =
9386                        mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
9387        phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
9388        phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
9389        phba->sli4_hba.physical_port =
9390                        mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
9391        lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9392                        "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
9393                        "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
9394                        phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
9395
9396        if (rc != MBX_TIMEOUT)
9397                mempool_free(mboxq, phba->mbox_mem_pool);
9398
9399        /*
9400         * Set up HBA Event Queues (EQs)
9401         */
9402        qp = phba->sli4_hba.hdwq;
9403
9404        /* Set up HBA event queue */
9405        if (!qp) {
9406                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9407                                "3147 Fast-path EQs not allocated\n");
9408                rc = -ENOMEM;
9409                goto out_error;
9410        }
9411
9412        /* Loop thru all IRQ vectors */
9413        for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9414                /* Create HBA Event Queues (EQs) in order */
9415                for_each_present_cpu(cpu) {
9416                        cpup = &phba->sli4_hba.cpu_map[cpu];
9417
9418                        /* Look for the CPU thats using that vector with
9419                         * LPFC_CPU_FIRST_IRQ set.
9420                         */
9421                        if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
9422                                continue;
9423                        if (qidx != cpup->eq)
9424                                continue;
9425
9426                        /* Create an EQ for that vector */
9427                        rc = lpfc_eq_create(phba, qp[cpup->hdwq].hba_eq,
9428                                            phba->cfg_fcp_imax);
9429                        if (rc) {
9430                                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9431                                                "0523 Failed setup of fast-path"
9432                                                " EQ (%d), rc = 0x%x\n",
9433                                                cpup->eq, (uint32_t)rc);
9434                                goto out_destroy;
9435                        }
9436
9437                        /* Save the EQ for that vector in the hba_eq_hdl */
9438                        phba->sli4_hba.hba_eq_hdl[cpup->eq].eq =
9439                                qp[cpup->hdwq].hba_eq;
9440
9441                        lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9442                                        "2584 HBA EQ setup: queue[%d]-id=%d\n",
9443                                        cpup->eq,
9444                                        qp[cpup->hdwq].hba_eq->queue_id);
9445                }
9446        }
9447
9448        /* Loop thru all Hardware Queues */
9449        for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
9450                cpu = lpfc_find_cpu_handle(phba, qidx, LPFC_FIND_BY_HDWQ);
9451                cpup = &phba->sli4_hba.cpu_map[cpu];
9452
9453                /* Create the CQ/WQ corresponding to the Hardware Queue */
9454                rc = lpfc_create_wq_cq(phba,
9455                                       phba->sli4_hba.hdwq[cpup->hdwq].hba_eq,
9456                                       qp[qidx].io_cq,
9457                                       qp[qidx].io_wq,
9458                                       &phba->sli4_hba.hdwq[qidx].io_cq_map,
9459                                       qidx,
9460                                       LPFC_IO);
9461                if (rc) {
9462                        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9463                                        "0535 Failed to setup fastpath "
9464                                        "IO WQ/CQ (%d), rc = 0x%x\n",
9465                                        qidx, (uint32_t)rc);
9466                        goto out_destroy;
9467                }
9468        }
9469
9470        /*
9471         * Set up Slow Path Complete Queues (CQs)
9472         */
9473
9474        /* Set up slow-path MBOX CQ/MQ */
9475
9476        if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
9477                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9478                                "0528 %s not allocated\n",
9479                                phba->sli4_hba.mbx_cq ?
9480                                "Mailbox WQ" : "Mailbox CQ");
9481                rc = -ENOMEM;
9482                goto out_destroy;
9483        }
9484
9485        rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9486                               phba->sli4_hba.mbx_cq,
9487                               phba->sli4_hba.mbx_wq,
9488                               NULL, 0, LPFC_MBOX);
9489        if (rc) {
9490                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9491                        "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
9492                        (uint32_t)rc);
9493                goto out_destroy;
9494        }
9495        if (phba->nvmet_support) {
9496                if (!phba->sli4_hba.nvmet_cqset) {
9497                        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9498                                        "3165 Fast-path NVME CQ Set "
9499                                        "array not allocated\n");
9500                        rc = -ENOMEM;
9501                        goto out_destroy;
9502                }
9503                if (phba->cfg_nvmet_mrq > 1) {
9504                        rc = lpfc_cq_create_set(phba,
9505                                        phba->sli4_hba.nvmet_cqset,
9506                                        qp,
9507                                        LPFC_WCQ, LPFC_NVMET);
9508                        if (rc) {
9509                                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9510                                                "3164 Failed setup of NVME CQ "
9511                                                "Set, rc = 0x%x\n",
9512                                                (uint32_t)rc);
9513                                goto out_destroy;
9514                        }
9515                } else {
9516                        /* Set up NVMET Receive Complete Queue */
9517                        rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
9518                                            qp[0].hba_eq,
9519                                            LPFC_WCQ, LPFC_NVMET);
9520                        if (rc) {
9521                                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9522                                                "6089 Failed setup NVMET CQ: "
9523                                                "rc = 0x%x\n", (uint32_t)rc);
9524                                goto out_destroy;
9525                        }
9526                        phba->sli4_hba.nvmet_cqset[0]->chann = 0;
9527
9528                        lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9529                                        "6090 NVMET CQ setup: cq-id=%d, "
9530                                        "parent eq-id=%d\n",
9531                                        phba->sli4_hba.nvmet_cqset[0]->queue_id,
9532                                        qp[0].hba_eq->queue_id);
9533                }
9534        }
9535
9536        /* Set up slow-path ELS WQ/CQ */
9537        if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
9538                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9539                                "0530 ELS %s not allocated\n",
9540                                phba->sli4_hba.els_cq ? "WQ" : "CQ");
9541                rc = -ENOMEM;
9542                goto out_destroy;
9543        }
9544        rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9545                               phba->sli4_hba.els_cq,
9546                               phba->sli4_hba.els_wq,
9547                               NULL, 0, LPFC_ELS);
9548        if (rc) {
9549                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9550                                "0525 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
9551                                (uint32_t)rc);
9552                goto out_destroy;
9553        }
9554        lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9555                        "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
9556                        phba->sli4_hba.els_wq->queue_id,
9557                        phba->sli4_hba.els_cq->queue_id);
9558
9559        if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9560                /* Set up NVME LS Complete Queue */
9561                if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
9562                        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9563                                        "6091 LS %s not allocated\n",
9564                                        phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
9565                        rc = -ENOMEM;
9566                        goto out_destroy;
9567                }
9568                rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9569                                       phba->sli4_hba.nvmels_cq,
9570                                       phba->sli4_hba.nvmels_wq,
9571                                       NULL, 0, LPFC_NVME_LS);
9572                if (rc) {
9573                        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9574                                        "0526 Failed setup of NVVME LS WQ/CQ: "
9575                                        "rc = 0x%x\n", (uint32_t)rc);
9576                        goto out_destroy;
9577                }
9578
9579                lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9580                                "6096 ELS WQ setup: wq-id=%d, "
9581                                "parent cq-id=%d\n",
9582                                phba->sli4_hba.nvmels_wq->queue_id,
9583                                phba->sli4_hba.nvmels_cq->queue_id);
9584        }
9585
9586        /*
9587         * Create NVMET Receive Queue (RQ)
9588         */
9589        if (phba->nvmet_support) {
9590                if ((!phba->sli4_hba.nvmet_cqset) ||
9591                    (!phba->sli4_hba.nvmet_mrq_hdr) ||
9592                    (!phba->sli4_hba.nvmet_mrq_data)) {
9593                        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9594                                        "6130 MRQ CQ Queues not "
9595                                        "allocated\n");
9596                        rc = -ENOMEM;
9597                        goto out_destroy;
9598                }
9599                if (phba->cfg_nvmet_mrq > 1) {
9600                        rc = lpfc_mrq_create(phba,
9601                                             phba->sli4_hba.nvmet_mrq_hdr,
9602                                             phba->sli4_hba.nvmet_mrq_data,
9603                                             phba->sli4_hba.nvmet_cqset,
9604                                             LPFC_NVMET);
9605                        if (rc) {
9606                                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9607                                                "6098 Failed setup of NVMET "
9608                                                "MRQ: rc = 0x%x\n",
9609                                                (uint32_t)rc);
9610                                goto out_destroy;
9611                        }
9612
9613                } else {
9614                        rc = lpfc_rq_create(phba,
9615                                            phba->sli4_hba.nvmet_mrq_hdr[0],
9616                                            phba->sli4_hba.nvmet_mrq_data[0],
9617                                            phba->sli4_hba.nvmet_cqset[0],
9618                                            LPFC_NVMET);
9619                        if (rc) {
9620                                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9621                                                "6057 Failed setup of NVMET "
9622                                                "Receive Queue: rc = 0x%x\n",
9623                                                (uint32_t)rc);
9624                                goto out_destroy;
9625                        }
9626
9627                        lpfc_printf_log(
9628                                phba, KERN_INFO, LOG_INIT,
9629                                "6099 NVMET RQ setup: hdr-rq-id=%d, "
9630                                "dat-rq-id=%d parent cq-id=%d\n",
9631                                phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
9632                                phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
9633                                phba->sli4_hba.nvmet_cqset[0]->queue_id);
9634
9635                }
9636        }
9637
9638        if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
9639                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9640                                "0540 Receive Queue not allocated\n");
9641                rc = -ENOMEM;
9642                goto out_destroy;
9643        }
9644
9645        rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
9646                            phba->sli4_hba.els_cq, LPFC_USOL);
9647        if (rc) {
9648                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9649                                "0541 Failed setup of Receive Queue: "
9650                                "rc = 0x%x\n", (uint32_t)rc);
9651                goto out_destroy;
9652        }
9653
9654        lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9655                        "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
9656                        "parent cq-id=%d\n",
9657                        phba->sli4_hba.hdr_rq->queue_id,
9658                        phba->sli4_hba.dat_rq->queue_id,
9659                        phba->sli4_hba.els_cq->queue_id);
9660
9661        if (phba->cfg_fcp_imax)
9662                usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax;
9663        else
9664                usdelay = 0;
9665
9666        for (qidx = 0; qidx < phba->cfg_irq_chann;
9667             qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
9668                lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
9669                                         usdelay);
9670
9671        if (phba->sli4_hba.cq_max) {
9672                kfree(phba->sli4_hba.cq_lookup);
9673                phba->sli4_hba.cq_lookup = kcalloc((phba->sli4_hba.cq_max + 1),
9674                        sizeof(struct lpfc_queue *), GFP_KERNEL);
9675                if (!phba->sli4_hba.cq_lookup) {
9676                        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9677                                        "0549 Failed setup of CQ Lookup table: "
9678                                        "size 0x%x\n", phba->sli4_hba.cq_max);
9679                        rc = -ENOMEM;
9680                        goto out_destroy;
9681                }
9682                lpfc_setup_cq_lookup(phba);
9683        }
9684        return 0;
9685
9686out_destroy:
9687        lpfc_sli4_queue_unset(phba);
9688out_error:
9689        return rc;
9690}
9691
9692/**
9693 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
9694 * @phba: pointer to lpfc hba data structure.
9695 *
9696 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
9697 * operation.
9698 *
9699 * Return codes
9700 *      0 - successful
9701 *      -ENOMEM - No available memory
9702 *      -EIO - The mailbox failed to complete successfully.
9703 **/
9704void
9705lpfc_sli4_queue_unset(struct lpfc_hba *phba)
9706{
9707        struct lpfc_sli4_hdw_queue *qp;
9708        struct lpfc_queue *eq;
9709        int qidx;
9710
9711        /* Unset mailbox command work queue */
9712        if (phba->sli4_hba.mbx_wq)
9713                lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
9714
9715        /* Unset NVME LS work queue */
9716        if (phba->sli4_hba.nvmels_wq)
9717                lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
9718
9719        /* Unset ELS work queue */
9720        if (phba->sli4_hba.els_wq)
9721                lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
9722
9723        /* Unset unsolicited receive queue */
9724        if (phba->sli4_hba.hdr_rq)
9725                lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
9726                                phba->sli4_hba.dat_rq);
9727
9728        /* Unset mailbox command complete queue */
9729        if (phba->sli4_hba.mbx_cq)
9730                lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
9731
9732        /* Unset ELS complete queue */
9733        if (phba->sli4_hba.els_cq)
9734                lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
9735
9736        /* Unset NVME LS complete queue */
9737        if (phba->sli4_hba.nvmels_cq)
9738                lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
9739
9740        if (phba->nvmet_support) {
9741                /* Unset NVMET MRQ queue */
9742                if (phba->sli4_hba.nvmet_mrq_hdr) {
9743                        for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9744                                lpfc_rq_destroy(
9745                                        phba,
9746                                        phba->sli4_hba.nvmet_mrq_hdr[qidx],
9747                                        phba->sli4_hba.nvmet_mrq_data[qidx]);
9748                }
9749
9750                /* Unset NVMET CQ Set complete queue */
9751                if (phba->sli4_hba.nvmet_cqset) {
9752                        for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9753                                lpfc_cq_destroy(
9754                                        phba, phba->sli4_hba.nvmet_cqset[qidx]);
9755                }
9756        }
9757
9758        /* Unset fast-path SLI4 queues */
9759        if (phba->sli4_hba.hdwq) {
9760                /* Loop thru all Hardware Queues */
9761                for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
9762                        /* Destroy the CQ/WQ corresponding to Hardware Queue */
9763                        qp = &phba->sli4_hba.hdwq[qidx];
9764                        lpfc_wq_destroy(phba, qp->io_wq);
9765                        lpfc_cq_destroy(phba, qp->io_cq);
9766                }
9767                /* Loop thru all IRQ vectors */
9768                for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9769                        /* Destroy the EQ corresponding to the IRQ vector */
9770                        eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
9771                        lpfc_eq_destroy(phba, eq);
9772                }
9773        }
9774
9775        kfree(phba->sli4_hba.cq_lookup);
9776        phba->sli4_hba.cq_lookup = NULL;
9777        phba->sli4_hba.cq_max = 0;
9778}
9779
9780/**
9781 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
9782 * @phba: pointer to lpfc hba data structure.
9783 *
9784 * This routine is invoked to allocate and set up a pool of completion queue
9785 * events. The body of the completion queue event is a completion queue entry
9786 * CQE. For now, this pool is used for the interrupt service routine to queue
9787 * the following HBA completion queue events for the worker thread to process:
9788 *   - Mailbox asynchronous events
9789 *   - Receive queue completion unsolicited events
9790 * Later, this can be used for all the slow-path events.
9791 *
9792 * Return codes
9793 *      0 - successful
9794 *      -ENOMEM - No available memory
9795 **/
9796static int
9797lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
9798{
9799        struct lpfc_cq_event *cq_event;
9800        int i;
9801
9802        for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
9803                cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
9804                if (!cq_event)
9805                        goto out_pool_create_fail;
9806                list_add_tail(&cq_event->list,
9807                              &phba->sli4_hba.sp_cqe_event_pool);
9808        }
9809        return 0;
9810
9811out_pool_create_fail:
9812        lpfc_sli4_cq_event_pool_destroy(phba);
9813        return -ENOMEM;
9814}
9815
9816/**
9817 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
9818 * @phba: pointer to lpfc hba data structure.
9819 *
9820 * This routine is invoked to free the pool of completion queue events at
9821 * driver unload time. Note that, it is the responsibility of the driver
9822 * cleanup routine to free all the outstanding completion-queue events
9823 * allocated from this pool back into the pool before invoking this routine
9824 * to destroy the pool.
9825 **/
9826static void
9827lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
9828{
9829        struct lpfc_cq_event *cq_event, *next_cq_event;
9830
9831        list_for_each_entry_safe(cq_event, next_cq_event,
9832                                 &phba->sli4_hba.sp_cqe_event_pool, list) {
9833                list_del(&cq_event->list);
9834                kfree(cq_event);
9835        }
9836}
9837
9838/**
9839 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9840 * @phba: pointer to lpfc hba data structure.
9841 *
9842 * This routine is the lock free version of the API invoked to allocate a
9843 * completion-queue event from the free pool.
9844 *
9845 * Return: Pointer to the newly allocated completion-queue event if successful
9846 *         NULL otherwise.
9847 **/
9848struct lpfc_cq_event *
9849__lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9850{
9851        struct lpfc_cq_event *cq_event = NULL;
9852
9853        list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
9854                         struct lpfc_cq_event, list);
9855        return cq_event;
9856}
9857
9858/**
9859 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9860 * @phba: pointer to lpfc hba data structure.
9861 *
9862 * This routine is the lock version of the API invoked to allocate a
9863 * completion-queue event from the free pool.
9864 *
9865 * Return: Pointer to the newly allocated completion-queue event if successful
9866 *         NULL otherwise.
9867 **/
9868struct lpfc_cq_event *
9869lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9870{
9871        struct lpfc_cq_event *cq_event;
9872        unsigned long iflags;
9873
9874        spin_lock_irqsave(&phba->hbalock, iflags);
9875        cq_event = __lpfc_sli4_cq_event_alloc(phba);
9876        spin_unlock_irqrestore(&phba->hbalock, iflags);
9877        return cq_event;
9878}
9879
9880/**
9881 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9882 * @phba: pointer to lpfc hba data structure.
9883 * @cq_event: pointer to the completion queue event to be freed.
9884 *
9885 * This routine is the lock free version of the API invoked to release a
9886 * completion-queue event back into the free pool.
9887 **/
9888void
9889__lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9890                             struct lpfc_cq_event *cq_event)
9891{
9892        list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
9893}
9894
9895/**
9896 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9897 * @phba: pointer to lpfc hba data structure.
9898 * @cq_event: pointer to the completion queue event to be freed.
9899 *
9900 * This routine is the lock version of the API invoked to release a
9901 * completion-queue event back into the free pool.
9902 **/
9903void
9904lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9905                           struct lpfc_cq_event *cq_event)
9906{
9907        unsigned long iflags;
9908        spin_lock_irqsave(&phba->hbalock, iflags);
9909        __lpfc_sli4_cq_event_release(phba, cq_event);
9910        spin_unlock_irqrestore(&phba->hbalock, iflags);
9911}
9912
9913/**
9914 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
9915 * @phba: pointer to lpfc hba data structure.
9916 *
9917 * This routine is to free all the pending completion-queue events to the
9918 * back into the free pool for device reset.
9919 **/
9920static void
9921lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
9922{
9923        LIST_HEAD(cqelist);
9924        struct lpfc_cq_event *cqe;
9925        unsigned long iflags;
9926
9927        /* Retrieve all the pending WCQEs from pending WCQE lists */
9928        spin_lock_irqsave(&phba->hbalock, iflags);
9929        /* Pending FCP XRI abort events */
9930        list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
9931                         &cqelist);
9932        /* Pending ELS XRI abort events */
9933        list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
9934                         &cqelist);
9935        /* Pending asynnc events */
9936        list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
9937                         &cqelist);
9938        spin_unlock_irqrestore(&phba->hbalock, iflags);
9939
9940        while (!list_empty(&cqelist)) {
9941                list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
9942                lpfc_sli4_cq_event_release(phba, cqe);
9943        }
9944}
9945
9946/**
9947 * lpfc_pci_function_reset - Reset pci function.
9948 * @phba: pointer to lpfc hba data structure.
9949 *
9950 * This routine is invoked to request a PCI function reset. It will destroys
9951 * all resources assigned to the PCI function which originates this request.
9952 *
9953 * Return codes
9954 *      0 - successful
9955 *      -ENOMEM - No available memory
9956 *      -EIO - The mailbox failed to complete successfully.
9957 **/
9958int
9959lpfc_pci_function_reset(struct lpfc_hba *phba)
9960{
9961        LPFC_MBOXQ_t *mboxq;
9962        uint32_t rc = 0, if_type;
9963        uint32_t shdr_status, shdr_add_status;
9964        uint32_t rdy_chk;
9965        uint32_t port_reset = 0;
9966        union lpfc_sli4_cfg_shdr *shdr;
9967        struct lpfc_register reg_data;
9968        uint16_t devid;
9969
9970        if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9971        switch (if_type) {
9972        case LPFC_SLI_INTF_IF_TYPE_0:
9973                mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
9974                                                       GFP_KERNEL);
9975                if (!mboxq) {
9976                        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9977                                        "0494 Unable to allocate memory for "
9978                                        "issuing SLI_FUNCTION_RESET mailbox "
9979                                        "command\n");
9980                        return -ENOMEM;
9981                }
9982
9983                /* Setup PCI function reset mailbox-ioctl command */
9984                lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9985                                 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
9986                                 LPFC_SLI4_MBX_EMBED);
9987                rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9988                shdr = (union lpfc_sli4_cfg_shdr *)
9989                        &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9990                shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9991                shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
9992                                         &shdr->response);
9993                if (rc != MBX_TIMEOUT)
9994                        mempool_free(mboxq, phba->mbox_mem_pool);
9995                if (shdr_status || shdr_add_status || rc) {
9996                        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9997                                        "0495 SLI_FUNCTION_RESET mailbox "
9998                                        "failed with status x%x add_status x%x,"
9999                                        " mbx status x%x\n",
10000                                        shdr_status, shdr_add_status, rc);
10001                        rc = -ENXIO;
10002                }
10003                break;
10004        case LPFC_SLI_INTF_IF_TYPE_2:
10005        case LPFC_SLI_INTF_IF_TYPE_6:
10006wait:
10007                /*
10008                 * Poll the Port Status Register and wait for RDY for
10009                 * up to 30 seconds. If the port doesn't respond, treat
10010                 * it as an error.
10011                 */
10012                for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
10013                        if (lpfc_readl(phba->sli4_hba.u.if_type2.
10014                                STATUSregaddr, &reg_data.word0)) {
10015                                rc = -ENODEV;
10016                                goto out;
10017                        }
10018                        if (bf_get(lpfc_sliport_status_rdy, &reg_data))
10019                                break;
10020                        msleep(20);
10021                }
10022
10023                if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
10024                        phba->work_status[0] = readl(
10025                                phba->sli4_hba.u.if_type2.ERR1regaddr);
10026                        phba->work_status[1] = readl(
10027                                phba->sli4_hba.u.if_type2.ERR2regaddr);
10028                        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10029                                        "2890 Port not ready, port status reg "
10030                                        "0x%x error 1=0x%x, error 2=0x%x\n",
10031                                        reg_data.word0,
10032                                        phba->work_status[0],
10033                                        phba->work_status[1]);
10034                        rc = -ENODEV;
10035                        goto out;
10036                }
10037
10038                if (!port_reset) {
10039                        /*
10040                         * Reset the port now
10041                         */
10042                        reg_data.word0 = 0;
10043                        bf_set(lpfc_sliport_ctrl_end, &reg_data,
10044                               LPFC_SLIPORT_LITTLE_ENDIAN);
10045                        bf_set(lpfc_sliport_ctrl_ip, &reg_data,
10046                               LPFC_SLIPORT_INIT_PORT);
10047                        writel(reg_data.word0, phba->sli4_hba.u.if_type2.
10048                               CTRLregaddr);
10049                        /* flush */
10050                        pci_read_config_word(phba->pcidev,
10051                                             PCI_DEVICE_ID, &devid);
10052
10053                        port_reset = 1;
10054                        msleep(20);
10055                        goto wait;
10056                } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
10057                        rc = -ENODEV;
10058                        goto out;
10059                }
10060                break;
10061
10062        case LPFC_SLI_INTF_IF_TYPE_1:
10063        default:
10064                break;
10065        }
10066
10067out:
10068        /* Catch the not-ready port failure after a port reset. */
10069        if (rc) {
10070                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10071                                "3317 HBA not functional: IP Reset Failed "
10072                                "try: echo fw_reset > board_mode\n");
10073                rc = -ENODEV;
10074        }
10075
10076        return rc;
10077}
10078
10079/**
10080 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
10081 * @phba: pointer to lpfc hba data structure.
10082 *
10083 * This routine is invoked to set up the PCI device memory space for device
10084 * with SLI-4 interface spec.
10085 *
10086 * Return codes
10087 *      0 - successful
10088 *      other values - error
10089 **/
10090static int
10091lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
10092{
10093        struct pci_dev *pdev = phba->pcidev;
10094        unsigned long bar0map_len, bar1map_len, bar2map_len;
10095        int error;
10096        uint32_t if_type;
10097
10098        if (!pdev)
10099                return -ENODEV;
10100
10101        /* Set the device DMA mask size */
10102        error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
10103        if (error)
10104                error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
10105        if (error)
10106                return error;
10107
10108        /*
10109         * The BARs and register set definitions and offset locations are
10110         * dependent on the if_type.
10111         */
10112        if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
10113                                  &phba->sli4_hba.sli_intf.word0)) {
10114                return -ENODEV;
10115        }
10116
10117        /* There is no SLI3 failback for SLI4 devices. */
10118        if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
10119            LPFC_SLI_INTF_VALID) {
10120                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10121                                "2894 SLI_INTF reg contents invalid "
10122                                "sli_intf reg 0x%x\n",
10123                                phba->sli4_hba.sli_intf.word0);
10124                return -ENODEV;
10125        }
10126
10127        if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10128        /*
10129         * Get the bus address of SLI4 device Bar regions and the
10130         * number of bytes required by each mapping. The mapping of the
10131         * particular PCI BARs regions is dependent on the type of
10132         * SLI4 device.
10133         */
10134        if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
10135                phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
10136                bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
10137
10138                /*
10139                 * Map SLI4 PCI Config Space Register base to a kernel virtual
10140                 * addr
10141                 */
10142                phba->sli4_hba.conf_regs_memmap_p =
10143                        ioremap(phba->pci_bar0_map, bar0map_len);
10144                if (!phba->sli4_hba.conf_regs_memmap_p) {
10145                        dev_printk(KERN_ERR, &pdev->dev,
10146                                   "ioremap failed for SLI4 PCI config "
10147                                   "registers.\n");
10148                        return -ENODEV;
10149                }
10150                phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
10151                /* Set up BAR0 PCI config space register memory map */
10152                lpfc_sli4_bar0_register_memmap(phba, if_type);
10153        } else {
10154                phba->pci_bar0_map = pci_resource_start(pdev, 1);
10155                bar0map_len = pci_resource_len(pdev, 1);
10156                if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
10157                        dev_printk(KERN_ERR, &pdev->dev,
10158                           "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
10159                        return -ENODEV;
10160                }
10161                phba->sli4_hba.conf_regs_memmap_p =
10162                                ioremap(phba->pci_bar0_map, bar0map_len);
10163                if (!phba->sli4_hba.conf_regs_memmap_p) {
10164                        dev_printk(KERN_ERR, &pdev->dev,
10165                                "ioremap failed for SLI4 PCI config "
10166                                "registers.\n");
10167                        return -ENODEV;
10168                }
10169                lpfc_sli4_bar0_register_memmap(phba, if_type);
10170        }
10171
10172        if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
10173                if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
10174                        /*
10175                         * Map SLI4 if type 0 HBA Control Register base to a
10176                         * kernel virtual address and setup the registers.
10177                         */
10178                        phba->pci_bar1_map = pci_resource_start(pdev,
10179                                                                PCI_64BIT_BAR2);
10180                        bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
10181                        phba->sli4_hba.ctrl_regs_memmap_p =
10182                                        ioremap(phba->pci_bar1_map,
10183                                                bar1map_len);
10184                        if (!phba->sli4_hba.ctrl_regs_memmap_p) {
10185                                dev_err(&pdev->dev,
10186                                           "ioremap failed for SLI4 HBA "
10187                                            "control registers.\n");
10188                                error = -ENOMEM;
10189                                goto out_iounmap_conf;
10190                        }
10191                        phba->pci_bar2_memmap_p =
10192                                         phba->sli4_hba.ctrl_regs_memmap_p;
10193                        lpfc_sli4_bar1_register_memmap(phba, if_type);
10194                } else {
10195                        error = -ENOMEM;
10196                        goto out_iounmap_conf;
10197                }
10198        }
10199
10200        if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
10201            (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
10202                /*
10203                 * Map SLI4 if type 6 HBA Doorbell Register base to a kernel
10204                 * virtual address and setup the registers.
10205                 */
10206                phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
10207                bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
10208                phba->sli4_hba.drbl_regs_memmap_p =
10209                                ioremap(phba->pci_bar1_map, bar1map_len);
10210                if (!phba->sli4_hba.drbl_regs_memmap_p) {
10211                        dev_err(&pdev->dev,
10212                           "ioremap failed for SLI4 HBA doorbell registers.\n");
10213                        error = -ENOMEM;
10214                        goto out_iounmap_conf;
10215                }
10216                phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
10217                lpfc_sli4_bar1_register_memmap(phba, if_type);
10218        }
10219
10220        if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
10221                if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
10222                        /*
10223                         * Map SLI4 if type 0 HBA Doorbell Register base to
10224                         * a kernel virtual address and setup the registers.
10225                         */
10226                        phba->pci_bar2_map = pci_resource_start(pdev,
10227                                                                PCI_64BIT_BAR4);
10228                        bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
10229                        phba->sli4_hba.drbl_regs_memmap_p =
10230                                        ioremap(phba->pci_bar2_map,
10231                                                bar2map_len);
10232                        if (!phba->sli4_hba.drbl_regs_memmap_p) {
10233                                dev_err(&pdev->dev,
10234                                           "ioremap failed for SLI4 HBA"
10235                                           " doorbell registers.\n");
10236                                error = -ENOMEM;
10237                                goto out_iounmap_ctrl;
10238                        }
10239                        phba->pci_bar4_memmap_p =
10240                                        phba->sli4_hba.drbl_regs_memmap_p;
10241                        error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
10242                        if (error)
10243                                goto out_iounmap_all;
10244                } else {
10245                        error = -ENOMEM;
10246                        goto out_iounmap_all;
10247                }
10248        }
10249
10250        if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
10251            pci_resource_start(pdev, PCI_64BIT_BAR4)) {
10252                /*
10253                 * Map SLI4 if type 6 HBA DPP Register base to a kernel
10254                 * virtual address and setup the registers.
10255                 */
10256                phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
10257                bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
10258                phba->sli4_hba.dpp_regs_memmap_p =
10259                                ioremap(phba->pci_bar2_map, bar2map_len);
10260                if (!phba->sli4_hba.dpp_regs_memmap_p) {
10261                        dev_err(&pdev->dev,
10262                           "ioremap failed for SLI4 HBA dpp registers.\n");
10263                        error = -ENOMEM;
10264                        goto out_iounmap_ctrl;
10265                }
10266                phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
10267        }
10268
10269        /* Set up the EQ/CQ register handeling functions now */
10270        switch (if_type) {
10271        case LPFC_SLI_INTF_IF_TYPE_0:
10272        case LPFC_SLI_INTF_IF_TYPE_2:
10273                phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
10274                phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_write_eq_db;
10275                phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_write_cq_db;
10276                break;
10277        case LPFC_SLI_INTF_IF_TYPE_6:
10278                phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
10279                phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_if6_write_eq_db;
10280                phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_if6_write_cq_db;
10281                break;
10282        default:
10283                break;
10284        }
10285
10286        return 0;
10287
10288out_iounmap_all:
10289        iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10290out_iounmap_ctrl:
10291        iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
10292out_iounmap_conf:
10293        iounmap(phba->sli4_hba.conf_regs_memmap_p);
10294
10295        return error;
10296}
10297
10298/**
10299 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
10300 * @phba: pointer to lpfc hba data structure.
10301 *
10302 * This routine is invoked to unset the PCI device memory space for device
10303 * with SLI-4 interface spec.
10304 **/
10305static void
10306lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
10307{
10308        uint32_t if_type;
10309        if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10310
10311        switch (if_type) {
10312        case LPFC_SLI_INTF_IF_TYPE_0:
10313                iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10314                iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
10315                iounmap(phba->sli4_hba.conf_regs_memmap_p);
10316                break;
10317        case LPFC_SLI_INTF_IF_TYPE_2:
10318                iounmap(phba->sli4_hba.conf_regs_memmap_p);
10319                break;
10320        case LPFC_SLI_INTF_IF_TYPE_6:
10321                iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10322                iounmap(phba->sli4_hba.conf_regs_memmap_p);
10323                break;
10324        case LPFC_SLI_INTF_IF_TYPE_1:
10325        default:
10326                dev_printk(KERN_ERR, &phba->pcidev->dev,
10327                           "FATAL - unsupported SLI4 interface type - %d\n",
10328                           if_type);
10329                break;
10330        }
10331}
10332
10333/**
10334 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
10335 * @phba: pointer to lpfc hba data structure.
10336 *
10337 * This routine is invoked to enable the MSI-X interrupt vectors to device
10338 * with SLI-3 interface specs.
10339 *
10340 * Return codes
10341 *   0 - successful
10342 *   other values - error
10343 **/
10344static int
10345lpfc_sli_enable_msix(struct lpfc_hba *phba)
10346{
10347        int rc;
10348        LPFC_MBOXQ_t *pmb;
10349
10350        /* Set up MSI-X multi-message vectors */
10351        rc = pci_alloc_irq_vectors(phba->pcidev,
10352                        LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
10353        if (rc < 0) {
10354                lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10355                                "0420 PCI enable MSI-X failed (%d)\n", rc);
10356                goto vec_fail_out;
10357        }
10358
10359        /*
10360         * Assign MSI-X vectors to interrupt handlers
10361         */
10362
10363        /* vector-0 is associated to slow-path handler */
10364        rc = request_irq(pci_irq_vector(phba->pcidev, 0),
10365                         &lpfc_sli_sp_intr_handler, 0,
10366                         LPFC_SP_DRIVER_HANDLER_NAME, phba);
10367        if (rc) {
10368                lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10369                                "0421 MSI-X slow-path request_irq failed "
10370                                "(%d)\n", rc);
10371                goto msi_fail_out;
10372        }
10373
10374        /* vector-1 is associated to fast-path handler */
10375        rc = request_irq(pci_irq_vector(phba->pcidev, 1),
10376                         &lpfc_sli_fp_intr_handler, 0,
10377                         LPFC_FP_DRIVER_HANDLER_NAME, phba);
10378
10379        if (rc) {
10380                lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10381                                "0429 MSI-X fast-path request_irq failed "
10382                                "(%d)\n", rc);
10383                goto irq_fail_out;
10384        }
10385
10386        /*
10387         * Configure HBA MSI-X attention conditions to messages
10388         */
10389        pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10390
10391        if (!pmb) {
10392                rc = -ENOMEM;
10393                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10394                                "0474 Unable to allocate memory for issuing "
10395                                "MBOX_CONFIG_MSI command\n");
10396                goto mem_fail_out;
10397        }
10398        rc = lpfc_config_msi(phba, pmb);
10399        if (rc)
10400                goto mbx_fail_out;
10401        rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
10402        if (rc != MBX_SUCCESS) {
10403                lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
10404                                "0351 Config MSI mailbox command failed, "
10405                                "mbxCmd x%x, mbxStatus x%x\n",
10406                                pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
10407                goto mbx_fail_out;
10408        }
10409
10410        /* Free memory allocated for mailbox command */
10411        mempool_free(pmb, phba->mbox_mem_pool);
10412        return rc;
10413
10414mbx_fail_out:
10415        /* Free memory allocated for mailbox command */
10416        mempool_free(pmb, phba->mbox_mem_pool);
10417
10418mem_fail_out:
10419        /* free the irq already requested */
10420        free_irq(pci_irq_vector(phba->pcidev, 1), phba);
10421
10422irq_fail_out:
10423        /* free the irq already requested */
10424        free_irq(pci_irq_vector(phba->pcidev, 0), phba);
10425
10426msi_fail_out:
10427        /* Unconfigure MSI-X capability structure */
10428        pci_free_irq_vectors(phba->pcidev);
10429
10430vec_fail_out:
10431        return rc;
10432}
10433
10434/**
10435 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
10436 * @phba: pointer to lpfc hba data structure.
10437 *
10438 * This routine is invoked to enable the MSI interrupt mode to device with
10439 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
10440 * enable the MSI vector. The device driver is responsible for calling the
10441 * request_irq() to register MSI vector with a interrupt the handler, which
10442 * is done in this function.
10443 *
10444 * Return codes
10445 *      0 - successful
10446 *      other values - error
10447 */
10448static int
10449lpfc_sli_enable_msi(struct lpfc_hba *phba)
10450{
10451        int rc;
10452
10453        rc = pci_enable_msi(phba->pcidev);
10454        if (!rc)
10455                lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10456                                "0462 PCI enable MSI mode success.\n");
10457        else {
10458                lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10459                                "0471 PCI enable MSI mode failed (%d)\n", rc);
10460                return rc;
10461        }
10462
10463        rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10464                         0, LPFC_DRIVER_NAME, phba);
10465        if (rc) {
10466                pci_disable_msi(phba->pcidev);
10467                lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10468                                "0478 MSI request_irq failed (%d)\n", rc);
10469        }
10470        return rc;
10471}
10472
10473/**
10474 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
10475 * @phba: pointer to lpfc hba data structure.
10476 *
10477 * This routine is invoked to enable device interrupt and associate driver's
10478 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
10479 * spec. Depends on the interrupt mode configured to the driver, the driver
10480 * will try to fallback from the configured interrupt mode to an interrupt
10481 * mode which is supported by the platform, kernel, and device in the order
10482 * of:
10483 * MSI-X -> MSI -> IRQ.
10484 *
10485 * Return codes
10486 *   0 - successful
10487 *   other values - error
10488 **/
10489static uint32_t
10490lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
10491{
10492        uint32_t intr_mode = LPFC_INTR_ERROR;
10493        int retval;
10494
10495        if (cfg_mode == 2) {
10496                /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
10497                retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
10498                if (!retval) {
10499                        /* Now, try to enable MSI-X interrupt mode */
10500                        retval = lpfc_sli_enable_msix(phba);
10501                        if (!retval) {
10502                                /* Indicate initialization to MSI-X mode */
10503                                phba->intr_type = MSIX;
10504                                intr_mode = 2;
10505                        }
10506                }
10507        }
10508
10509        /* Fallback to MSI if MSI-X initialization failed */
10510        if (cfg_mode >= 1 && phba->intr_type == NONE) {
10511                retval = lpfc_sli_enable_msi(phba);
10512                if (!retval) {
10513                        /* Indicate initialization to MSI mode */
10514                        phba->intr_type = MSI;
10515                        intr_mode = 1;
10516                }
10517        }
10518
10519        /* Fallback to INTx if both MSI-X/MSI initalization failed */
10520        if (phba->intr_type == NONE) {
10521                retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10522                                     IRQF_SHARED, LPFC_DRIVER_NAME, phba);
10523                if (!retval) {
10524                        /* Indicate initialization to INTx mode */
10525                        phba->intr_type = INTx;
10526                        intr_mode = 0;
10527                }
10528        }
10529        return intr_mode;
10530}
10531
10532/**
10533 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
10534 * @phba: pointer to lpfc hba data structure.
10535 *
10536 * This routine is invoked to disable device interrupt and disassociate the
10537 * driver's interrupt handler(s) from interrupt vector(s) to device with
10538 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
10539 * release the interrupt vector(s) for the message signaled interrupt.
10540 **/
10541static void
10542lpfc_sli_disable_intr(struct lpfc_hba *phba)
10543{
10544        int nr_irqs, i;
10545
10546        if (phba->intr_type == MSIX)
10547                nr_irqs = LPFC_MSIX_VECTORS;
10548        else
10549                nr_irqs = 1;
10550
10551        for (i = 0; i < nr_irqs; i++)
10552                free_irq(pci_irq_vector(phba->pcidev, i), phba);
10553        pci_free_irq_vectors(phba->pcidev);
10554
10555        /* Reset interrupt management states */
10556        phba->intr_type = NONE;
10557        phba->sli.slistat.sli_intr = 0;
10558}
10559
10560/**
10561 * lpfc_find_cpu_handle - Find the CPU that corresponds to the specified Queue
10562 * @phba: pointer to lpfc hba data structure.
10563 * @id: EQ vector index or Hardware Queue index
10564 * @match: LPFC_FIND_BY_EQ = match by EQ
10565 *         LPFC_FIND_BY_HDWQ = match by Hardware Queue
10566 * Return the CPU that matches the selection criteria
10567 */
10568static uint16_t
10569lpfc_find_cpu_handle(struct lpfc_hba *phba, uint16_t id, int match)
10570{
10571        struct lpfc_vector_map_info *cpup;
10572        int cpu;
10573
10574        /* Loop through all CPUs */
10575        for_each_present_cpu(cpu) {
10576                cpup = &phba->sli4_hba.cpu_map[cpu];
10577
10578                /* If we are matching by EQ, there may be multiple CPUs using
10579                 * using the same vector, so select the one with
10580                 * LPFC_CPU_FIRST_IRQ set.
10581                 */
10582                if ((match == LPFC_FIND_BY_EQ) &&
10583                    (cpup->flag & LPFC_CPU_FIRST_IRQ) &&
10584                    (cpup->irq != LPFC_VECTOR_MAP_EMPTY) &&
10585                    (cpup->eq == id))
10586                        return cpu;
10587
10588                /* If matching by HDWQ, select the first CPU that matches */
10589                if ((match == LPFC_FIND_BY_HDWQ) && (cpup->hdwq == id))
10590                        return cpu;
10591        }
10592        return 0;
10593}
10594
10595#ifdef CONFIG_X86
10596/**
10597 * lpfc_find_hyper - Determine if the CPU map entry is hyper-threaded
10598 * @phba: pointer to lpfc hba data structure.
10599 * @cpu: CPU map index
10600 * @phys_id: CPU package physical id
10601 * @core_id: CPU core id
10602 */
10603static int
10604lpfc_find_hyper(struct lpfc_hba *phba, int cpu,
10605                uint16_t phys_id, uint16_t core_id)
10606{
10607        struct lpfc_vector_map_info *cpup;
10608        int idx;
10609
10610        for_each_present_cpu(idx) {
10611                cpup = &phba->sli4_hba.cpu_map[idx];
10612                /* Does the cpup match the one we are looking for */
10613                if ((cpup->phys_id == phys_id) &&
10614                    (cpup->core_id == core_id) &&
10615                    (cpu != idx))
10616                        return 1;
10617        }
10618        return 0;
10619}
10620#endif
10621
10622/**
10623 * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
10624 * @phba: pointer to lpfc hba data structure.
10625 * @vectors: number of msix vectors allocated.
10626 *
10627 * The routine will figure out the CPU affinity assignment for every
10628 * MSI-X vector allocated for the HBA.
10629 * In addition, the CPU to IO channel mapping will be calculated
10630 * and the phba->sli4_hba.cpu_map array will reflect this.
10631 */
10632static void
10633lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
10634{
10635        int i, cpu, idx, next_idx, new_cpu, start_cpu, first_cpu;
10636        int max_phys_id, min_phys_id;
10637        int max_core_id, min_core_id;
10638        struct lpfc_vector_map_info *cpup;
10639        struct lpfc_vector_map_info *new_cpup;
10640        const struct cpumask *maskp;
10641#ifdef CONFIG_X86
10642        struct cpuinfo_x86 *cpuinfo;
10643#endif
10644
10645        /* Init cpu_map array */
10646        for_each_possible_cpu(cpu) {
10647                cpup = &phba->sli4_hba.cpu_map[cpu];
10648                cpup->phys_id = LPFC_VECTOR_MAP_EMPTY;
10649                cpup->core_id = LPFC_VECTOR_MAP_EMPTY;
10650                cpup->hdwq = LPFC_VECTOR_MAP_EMPTY;
10651                cpup->eq = LPFC_VECTOR_MAP_EMPTY;
10652                cpup->irq = LPFC_VECTOR_MAP_EMPTY;
10653                cpup->flag = 0;
10654        }
10655
10656        max_phys_id = 0;
10657        min_phys_id = LPFC_VECTOR_MAP_EMPTY;
10658        max_core_id = 0;
10659        min_core_id = LPFC_VECTOR_MAP_EMPTY;
10660
10661        /* Update CPU map with physical id and core id of each CPU */
10662        for_each_present_cpu(cpu) {
10663                cpup = &phba->sli4_hba.cpu_map[cpu];
10664#ifdef CONFIG_X86
10665                cpuinfo = &cpu_data(cpu);
10666                cpup->phys_id = cpuinfo->phys_proc_id;
10667                cpup->core_id = cpuinfo->cpu_core_id;
10668                if (lpfc_find_hyper(phba, cpu, cpup->phys_id, cpup->core_id))
10669                        cpup->flag |= LPFC_CPU_MAP_HYPER;
10670#else
10671                /* No distinction between CPUs for other platforms */
10672                cpup->phys_id = 0;
10673                cpup->core_id = cpu;
10674#endif
10675
10676                lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10677                                "3328 CPU %d physid %d coreid %d flag x%x\n",
10678                                cpu, cpup->phys_id, cpup->core_id, cpup->flag);
10679
10680                if (cpup->phys_id > max_phys_id)
10681                        max_phys_id = cpup->phys_id;
10682                if (cpup->phys_id < min_phys_id)
10683                        min_phys_id = cpup->phys_id;
10684
10685                if (cpup->core_id > max_core_id)
10686                        max_core_id = cpup->core_id;
10687                if (cpup->core_id < min_core_id)
10688                        min_core_id = cpup->core_id;
10689        }
10690
10691        for_each_possible_cpu(i) {
10692                struct lpfc_eq_intr_info *eqi =
10693                        per_cpu_ptr(phba->sli4_hba.eq_info, i);
10694
10695                INIT_LIST_HEAD(&eqi->list);
10696                eqi->icnt = 0;
10697        }
10698
10699        /* This loop sets up all CPUs that are affinitized with a
10700         * irq vector assigned to the driver. All affinitized CPUs
10701         * will get a link to that vectors IRQ and EQ.
10702         *
10703         * NULL affinity mask handling:
10704         * If irq count is greater than one, log an error message.
10705         * If the null mask is received for the first irq, find the
10706         * first present cpu, and assign the eq index to ensure at
10707         * least one EQ is assigned.
10708         */
10709        for (idx = 0; idx <  phba->cfg_irq_chann; idx++) {
10710                /* Get a CPU mask for all CPUs affinitized to this vector */
10711                maskp = pci_irq_get_affinity(phba->pcidev, idx);
10712                if (!maskp) {
10713                        if (phba->cfg_irq_chann > 1)
10714                                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10715                                                "3329 No affinity mask found "
10716                                                "for vector %d (%d)\n",
10717                                                idx, phba->cfg_irq_chann);
10718                        if (!idx) {
10719                                cpu = cpumask_first(cpu_present_mask);
10720                                cpup = &phba->sli4_hba.cpu_map[cpu];
10721                                cpup->eq = idx;
10722                                cpup->irq = pci_irq_vector(phba->pcidev, idx);
10723                                cpup->flag |= LPFC_CPU_FIRST_IRQ;
10724                        }
10725                        break;
10726                }
10727
10728                i = 0;
10729                /* Loop through all CPUs associated with vector idx */
10730                for_each_cpu_and(cpu, maskp, cpu_present_mask) {
10731                        /* Set the EQ index and IRQ for that vector */
10732                        cpup = &phba->sli4_hba.cpu_map[cpu];
10733                        cpup->eq = idx;
10734                        cpup->irq = pci_irq_vector(phba->pcidev, idx);
10735
10736                        /* If this is the first CPU thats assigned to this
10737                         * vector, set LPFC_CPU_FIRST_IRQ.
10738                         */
10739                        if (!i)
10740                                cpup->flag |= LPFC_CPU_FIRST_IRQ;
10741                        i++;
10742
10743                        lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10744                                        "3336 Set Affinity: CPU %d "
10745                                        "irq %d eq %d flag x%x\n",
10746                                        cpu, cpup->irq, cpup->eq, cpup->flag);
10747                }
10748        }
10749
10750        /* After looking at each irq vector assigned to this pcidev, its
10751         * possible to see that not ALL CPUs have been accounted for.
10752         * Next we will set any unassigned (unaffinitized) cpu map
10753         * entries to a IRQ on the same phys_id.
10754         */
10755        first_cpu = cpumask_first(cpu_present_mask);
10756        start_cpu = first_cpu;
10757
10758        for_each_present_cpu(cpu) {
10759                cpup = &phba->sli4_hba.cpu_map[cpu];
10760
10761                /* Is this CPU entry unassigned */
10762                if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
10763                        /* Mark CPU as IRQ not assigned by the kernel */
10764                        cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
10765
10766                        /* If so, find a new_cpup thats on the the SAME
10767                         * phys_id as cpup. start_cpu will start where we
10768                         * left off so all unassigned entries don't get assgined
10769                         * the IRQ of the first entry.
10770                         */
10771                        new_cpu = start_cpu;
10772                        for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
10773                                new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
10774                                if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
10775                                    (new_cpup->irq != LPFC_VECTOR_MAP_EMPTY) &&
10776                                    (new_cpup->phys_id == cpup->phys_id))
10777                                        goto found_same;
10778                                new_cpu = cpumask_next(
10779                                        new_cpu, cpu_present_mask);
10780                                if (new_cpu == nr_cpumask_bits)
10781                                        new_cpu = first_cpu;
10782                        }
10783                        /* At this point, we leave the CPU as unassigned */
10784                        continue;
10785found_same:
10786                        /* We found a matching phys_id, so copy the IRQ info */
10787                        cpup->eq = new_cpup->eq;
10788                        cpup->irq = new_cpup->irq;
10789
10790                        /* Bump start_cpu to the next slot to minmize the
10791                         * chance of having multiple unassigned CPU entries
10792                         * selecting the same IRQ.
10793                         */
10794                        start_cpu = cpumask_next(new_cpu, cpu_present_mask);
10795                        if (start_cpu == nr_cpumask_bits)
10796                                start_cpu = first_cpu;
10797
10798                        lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10799                                        "3337 Set Affinity: CPU %d "
10800                                        "irq %d from id %d same "
10801                                        "phys_id (%d)\n",
10802                                        cpu, cpup->irq, new_cpu, cpup->phys_id);
10803                }
10804        }
10805
10806        /* Set any unassigned cpu map entries to a IRQ on any phys_id */
10807        start_cpu = first_cpu;
10808
10809        for_each_present_cpu(cpu) {
10810                cpup = &phba->sli4_hba.cpu_map[cpu];
10811
10812                /* Is this entry unassigned */
10813                if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
10814                        /* Mark it as IRQ not assigned by the kernel */
10815                        cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
10816
10817                        /* If so, find a new_cpup thats on ANY phys_id
10818                         * as the cpup. start_cpu will start where we
10819                         * left off so all unassigned entries don't get
10820                         * assigned the IRQ of the first entry.
10821                         */
10822                        new_cpu = start_cpu;
10823                        for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
10824                                new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
10825                                if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
10826                                    (new_cpup->irq != LPFC_VECTOR_MAP_EMPTY))
10827                                        goto found_any;
10828                                new_cpu = cpumask_next(
10829                                        new_cpu, cpu_present_mask);
10830                                if (new_cpu == nr_cpumask_bits)
10831                                        new_cpu = first_cpu;
10832                        }
10833                        /* We should never leave an entry unassigned */
10834                        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10835                                        "3339 Set Affinity: CPU %d "
10836                                        "irq %d UNASSIGNED\n",
10837                                        cpup->hdwq, cpup->irq);
10838                        continue;
10839found_any:
10840                        /* We found an available entry, copy the IRQ info */
10841                        cpup->eq = new_cpup->eq;
10842                        cpup->irq = new_cpup->irq;
10843
10844                        /* Bump start_cpu to the next slot to minmize the
10845                         * chance of having multiple unassigned CPU entries
10846                         * selecting the same IRQ.
10847                         */
10848                        start_cpu = cpumask_next(new_cpu, cpu_present_mask);
10849                        if (start_cpu == nr_cpumask_bits)
10850                                start_cpu = first_cpu;
10851
10852                        lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10853                                        "3338 Set Affinity: CPU %d "
10854                                        "irq %d from id %d (%d/%d)\n",
10855                                        cpu, cpup->irq, new_cpu,
10856                                        new_cpup->phys_id, new_cpup->core_id);
10857                }
10858        }
10859
10860        /* Assign hdwq indices that are unique across all cpus in the map
10861         * that are also FIRST_CPUs.
10862         */
10863        idx = 0;
10864        for_each_present_cpu(cpu) {
10865                cpup = &phba->sli4_hba.cpu_map[cpu];
10866
10867                /* Only FIRST IRQs get a hdwq index assignment. */
10868                if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
10869                        continue;
10870
10871                /* 1 to 1, the first LPFC_CPU_FIRST_IRQ cpus to a unique hdwq */
10872                cpup->hdwq = idx;
10873                idx++;
10874                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10875                                "3333 Set Affinity: CPU %d (phys %d core %d): "
10876                                "hdwq %d eq %d irq %d flg x%x\n",
10877                                cpu, cpup->phys_id, cpup->core_id,
10878                                cpup->hdwq, cpup->eq, cpup->irq, cpup->flag);
10879        }
10880        /* Finally we need to associate a hdwq with each cpu_map entry
10881         * This will be 1 to 1 - hdwq to cpu, unless there are less
10882         * hardware queues then CPUs. For that case we will just round-robin
10883         * the available hardware queues as they get assigned to CPUs.
10884         * The next_idx is the idx from the FIRST_CPU loop above to account
10885         * for irq_chann < hdwq.  The idx is used for round-robin assignments
10886         * and needs to start at 0.
10887         */
10888        next_idx = idx;
10889        start_cpu = 0;
10890        idx = 0;
10891        for_each_present_cpu(cpu) {
10892                cpup = &phba->sli4_hba.cpu_map[cpu];
10893
10894                /* FIRST cpus are already mapped. */
10895                if (cpup->flag & LPFC_CPU_FIRST_IRQ)
10896                        continue;
10897
10898                /* If the cfg_irq_chann < cfg_hdw_queue, set the hdwq
10899                 * of the unassigned cpus to the next idx so that all
10900                 * hdw queues are fully utilized.
10901                 */
10902                if (next_idx < phba->cfg_hdw_queue) {
10903                        cpup->hdwq = next_idx;
10904                        next_idx++;
10905                        continue;
10906                }
10907
10908                /* Not a First CPU and all hdw_queues are used.  Reuse a
10909                 * Hardware Queue for another CPU, so be smart about it
10910                 * and pick one that has its IRQ/EQ mapped to the same phys_id
10911                 * (CPU package) and core_id.
10912                 */
10913                new_cpu = start_cpu;
10914                for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
10915                        new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
10916                        if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
10917                            new_cpup->phys_id == cpup->phys_id &&
10918                            new_cpup->core_id == cpup->core_id) {
10919                                goto found_hdwq;
10920                        }
10921                        new_cpu = cpumask_next(new_cpu, cpu_present_mask);
10922                        if (new_cpu == nr_cpumask_bits)
10923                                new_cpu = first_cpu;
10924                }
10925
10926                /* If we can't match both phys_id and core_id,
10927                 * settle for just a phys_id match.
10928                 */
10929                new_cpu = start_cpu;
10930                for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
10931                        new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
10932                        if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
10933                            new_cpup->phys_id == cpup->phys_id)
10934                                goto found_hdwq;
10935
10936                        new_cpu = cpumask_next(new_cpu, cpu_present_mask);
10937                        if (new_cpu == nr_cpumask_bits)
10938                                new_cpu = first_cpu;
10939                }
10940
10941                /* Otherwise just round robin on cfg_hdw_queue */
10942                cpup->hdwq = idx % phba->cfg_hdw_queue;
10943                idx++;
10944                goto logit;
10945 found_hdwq:
10946                /* We found an available entry, copy the IRQ info */
10947                start_cpu = cpumask_next(new_cpu, cpu_present_mask);
10948                if (start_cpu == nr_cpumask_bits)
10949                        start_cpu = first_cpu;
10950                cpup->hdwq = new_cpup->hdwq;
10951 logit:
10952                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10953                                "3335 Set Affinity: CPU %d (phys %d core %d): "
10954                                "hdwq %d eq %d irq %d flg x%x\n",
10955                                cpu, cpup->phys_id, cpup->core_id,
10956                                cpup->hdwq, cpup->eq, cpup->irq, cpup->flag);
10957        }
10958
10959        /* The cpu_map array will be used later during initialization
10960         * when EQ / CQ / WQs are allocated and configured.
10961         */
10962        return;
10963}
10964
10965/**
10966 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
10967 * @phba: pointer to lpfc hba data structure.
10968 *
10969 * This routine is invoked to enable the MSI-X interrupt vectors to device
10970 * with SLI-4 interface spec.
10971 *
10972 * Return codes
10973 * 0 - successful
10974 * other values - error
10975 **/
10976static int
10977lpfc_sli4_enable_msix(struct lpfc_hba *phba)
10978{
10979        int vectors, rc, index;
10980        char *name;
10981
10982        /* Set up MSI-X multi-message vectors */
10983        vectors = phba->cfg_irq_chann;
10984
10985        rc = pci_alloc_irq_vectors(phba->pcidev,
10986                                1,
10987                                vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY);
10988        if (rc < 0) {
10989                lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10990                                "0484 PCI enable MSI-X failed (%d)\n", rc);
10991                goto vec_fail_out;
10992        }
10993        vectors = rc;
10994
10995        /* Assign MSI-X vectors to interrupt handlers */
10996        for (index = 0; index < vectors; index++) {
10997                name = phba->sli4_hba.hba_eq_hdl[index].handler_name;
10998                memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
10999                snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
11000                         LPFC_DRIVER_HANDLER_NAME"%d", index);
11001
11002                phba->sli4_hba.hba_eq_hdl[index].idx = index;
11003                phba->sli4_hba.hba_eq_hdl[index].phba = phba;
11004                rc = request_irq(pci_irq_vector(phba->pcidev, index),
11005                         &lpfc_sli4_hba_intr_handler, 0,
11006                         name,
11007                         &phba->sli4_hba.hba_eq_hdl[index]);
11008                if (rc) {
11009                        lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11010                                        "0486 MSI-X fast-path (%d) "
11011                                        "request_irq failed (%d)\n", index, rc);
11012                        goto cfg_fail_out;
11013                }
11014        }
11015
11016        if (vectors != phba->cfg_irq_chann) {
11017                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11018                                "3238 Reducing IO channels to match number of "
11019                                "MSI-X vectors, requested %d got %d\n",
11020                                phba->cfg_irq_chann, vectors);
11021                if (phba->cfg_irq_chann > vectors)
11022                        phba->cfg_irq_chann = vectors;
11023                if (phba->nvmet_support && (phba->cfg_nvmet_mrq > vectors))
11024                        phba->cfg_nvmet_mrq = vectors;
11025        }
11026
11027        return rc;
11028
11029cfg_fail_out:
11030        /* free the irq already requested */
11031        for (--index; index >= 0; index--)
11032                free_irq(pci_irq_vector(phba->pcidev, index),
11033                                &phba->sli4_hba.hba_eq_hdl[index]);
11034
11035        /* Unconfigure MSI-X capability structure */
11036        pci_free_irq_vectors(phba->pcidev);
11037
11038vec_fail_out:
11039        return rc;
11040}
11041
11042/**
11043 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
11044 * @phba: pointer to lpfc hba data structure.
11045 *
11046 * This routine is invoked to enable the MSI interrupt mode to device with
11047 * SLI-4 interface spec. The kernel function pci_alloc_irq_vectors() is
11048 * called to enable the MSI vector. The device driver is responsible for
11049 * calling the request_irq() to register MSI vector with a interrupt the
11050 * handler, which is done in this function.
11051 *
11052 * Return codes
11053 *      0 - successful
11054 *      other values - error
11055 **/
11056static int
11057lpfc_sli4_enable_msi(struct lpfc_hba *phba)
11058{
11059        int rc, index;
11060
11061        rc = pci_alloc_irq_vectors(phba->pcidev, 1, 1,
11062                                   PCI_IRQ_MSI | PCI_IRQ_AFFINITY);
11063        if (rc > 0)
11064                lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11065                                "0487 PCI enable MSI mode success.\n");
11066        else {
11067                lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11068                                "0488 PCI enable MSI mode failed (%d)\n", rc);
11069                return rc ? rc : -1;
11070        }
11071
11072        rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
11073                         0, LPFC_DRIVER_NAME, phba);
11074        if (rc) {
11075                pci_free_irq_vectors(phba->pcidev);
11076                lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11077                                "0490 MSI request_irq failed (%d)\n", rc);
11078                return rc;
11079        }
11080
11081        for (index = 0; index < phba->cfg_irq_chann; index++) {
11082                phba->sli4_hba.hba_eq_hdl[index].idx = index;
11083                phba->sli4_hba.hba_eq_hdl[index].phba = phba;
11084        }
11085
11086        return 0;
11087}
11088
11089/**
11090 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
11091 * @phba: pointer to lpfc hba data structure.
11092 *
11093 * This routine is invoked to enable device interrupt and associate driver's
11094 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
11095 * interface spec. Depends on the interrupt mode configured to the driver,
11096 * the driver will try to fallback from the configured interrupt mode to an
11097 * interrupt mode which is supported by the platform, kernel, and device in
11098 * the order of:
11099 * MSI-X -> MSI -> IRQ.
11100 *
11101 * Return codes
11102 *      0 - successful
11103 *      other values - error
11104 **/
11105static uint32_t
11106lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
11107{
11108        uint32_t intr_mode = LPFC_INTR_ERROR;
11109        int retval, idx;
11110
11111        if (cfg_mode == 2) {
11112                /* Preparation before conf_msi mbox cmd */
11113                retval = 0;
11114                if (!retval) {
11115                        /* Now, try to enable MSI-X interrupt mode */
11116                        retval = lpfc_sli4_enable_msix(phba);
11117                        if (!retval) {
11118                                /* Indicate initialization to MSI-X mode */
11119                                phba->intr_type = MSIX;
11120                                intr_mode = 2;
11121                        }
11122                }
11123        }
11124
11125        /* Fallback to MSI if MSI-X initialization failed */
11126        if (cfg_mode >= 1 && phba->intr_type == NONE) {
11127                retval = lpfc_sli4_enable_msi(phba);
11128                if (!retval) {
11129                        /* Indicate initialization to MSI mode */
11130                        phba->intr_type = MSI;
11131                        intr_mode = 1;
11132                }
11133        }
11134
11135        /* Fallback to INTx if both MSI-X/MSI initalization failed */
11136        if (phba->intr_type == NONE) {
11137                retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
11138                                     IRQF_SHARED, LPFC_DRIVER_NAME, phba);
11139                if (!retval) {
11140                        struct lpfc_hba_eq_hdl *eqhdl;
11141
11142                        /* Indicate initialization to INTx mode */
11143                        phba->intr_type = INTx;
11144                        intr_mode = 0;
11145
11146                        for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
11147                                eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
11148                                eqhdl->idx = idx;
11149                                eqhdl->phba = phba;
11150                        }
11151                }
11152        }
11153        return intr_mode;
11154}
11155
11156/**
11157 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
11158 * @phba: pointer to lpfc hba data structure.
11159 *
11160 * This routine is invoked to disable device interrupt and disassociate
11161 * the driver's interrupt handler(s) from interrupt vector(s) to device
11162 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
11163 * will release the interrupt vector(s) for the message signaled interrupt.
11164 **/
11165static void
11166lpfc_sli4_disable_intr(struct lpfc_hba *phba)
11167{
11168        /* Disable the currently initialized interrupt mode */
11169        if (phba->intr_type == MSIX) {
11170                int index;
11171
11172                /* Free up MSI-X multi-message vectors */
11173                for (index = 0; index < phba->cfg_irq_chann; index++) {
11174                        irq_set_affinity_hint(
11175                                pci_irq_vector(phba->pcidev, index),
11176                                NULL);
11177                        free_irq(pci_irq_vector(phba->pcidev, index),
11178                                        &phba->sli4_hba.hba_eq_hdl[index]);
11179                }
11180        } else {
11181                free_irq(phba->pcidev->irq, phba);
11182        }
11183
11184        pci_free_irq_vectors(phba->pcidev);
11185
11186        /* Reset interrupt management states */
11187        phba->intr_type = NONE;
11188        phba->sli.slistat.sli_intr = 0;
11189}
11190
11191/**
11192 * lpfc_unset_hba - Unset SLI3 hba device initialization
11193 * @phba: pointer to lpfc hba data structure.
11194 *
11195 * This routine is invoked to unset the HBA device initialization steps to
11196 * a device with SLI-3 interface spec.
11197 **/
11198static void
11199lpfc_unset_hba(struct lpfc_hba *phba)
11200{
11201        struct lpfc_vport *vport = phba->pport;
11202        struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
11203
11204        spin_lock_irq(shost->host_lock);
11205        vport->load_flag |= FC_UNLOADING;
11206        spin_unlock_irq(shost->host_lock);
11207
11208        kfree(phba->vpi_bmask);
11209        kfree(phba->vpi_ids);
11210
11211        lpfc_stop_hba_timers(phba);
11212
11213        phba->pport->work_port_events = 0;
11214
11215        lpfc_sli_hba_down(phba);
11216
11217        lpfc_sli_brdrestart(phba);
11218
11219        lpfc_sli_disable_intr(phba);
11220
11221        return;
11222}
11223
11224/**
11225 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
11226 * @phba: Pointer to HBA context object.
11227 *
11228 * This function is called in the SLI4 code path to wait for completion
11229 * of device's XRIs exchange busy. It will check the XRI exchange busy
11230 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
11231 * that, it will check the XRI exchange busy on outstanding FCP and ELS
11232 * I/Os every 30 seconds, log error message, and wait forever. Only when
11233 * all XRI exchange busy complete, the driver unload shall proceed with
11234 * invoking the function reset ioctl mailbox command to the CNA and the
11235 * the rest of the driver unload resource release.
11236 **/
11237static void
11238lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
11239{
11240        struct lpfc_sli4_hdw_queue *qp;
11241        int idx, ccnt;
11242        int wait_time = 0;
11243        int io_xri_cmpl = 1;
11244        int nvmet_xri_cmpl = 1;
11245        int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
11246
11247        /* Driver just aborted IOs during the hba_unset process.  Pause
11248         * here to give the HBA time to complete the IO and get entries
11249         * into the abts lists.
11250         */
11251        msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
11252
11253        /* Wait for NVME pending IO to flush back to transport. */
11254        if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
11255                lpfc_nvme_wait_for_io_drain(phba);
11256
11257        ccnt = 0;
11258        for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
11259                qp = &phba->sli4_hba.hdwq[idx];
11260                io_xri_cmpl = list_empty(&qp->lpfc_abts_io_buf_list);
11261                if (!io_xri_cmpl) /* if list is NOT empty */
11262                        ccnt++;
11263        }
11264        if (ccnt)
11265                io_xri_cmpl = 0;
11266
11267        if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11268                nvmet_xri_cmpl =
11269                        list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
11270        }
11271
11272        while (!els_xri_cmpl || !io_xri_cmpl || !nvmet_xri_cmpl) {
11273                if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
11274                        if (!nvmet_xri_cmpl)
11275                                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11276                                                "6424 NVMET XRI exchange busy "
11277                                                "wait time: %d seconds.\n",
11278                                                wait_time/1000);
11279                        if (!io_xri_cmpl)
11280                                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11281                                                "6100 IO XRI exchange busy "
11282                                                "wait time: %d seconds.\n",
11283                                                wait_time/1000);
11284                        if (!els_xri_cmpl)
11285                                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11286                                                "2878 ELS XRI exchange busy "
11287                                                "wait time: %d seconds.\n",
11288                                                wait_time/1000);
11289                        msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
11290                        wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
11291                } else {
11292                        msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
11293                        wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
11294                }
11295
11296                ccnt = 0;
11297                for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
11298                        qp = &phba->sli4_hba.hdwq[idx];
11299                        io_xri_cmpl = list_empty(
11300                            &qp->lpfc_abts_io_buf_list);
11301                        if (!io_xri_cmpl) /* if list is NOT empty */
11302                                ccnt++;
11303                }
11304                if (ccnt)
11305                        io_xri_cmpl = 0;
11306
11307                if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11308                        nvmet_xri_cmpl = list_empty(
11309                                &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
11310                }
11311                els_xri_cmpl =
11312                        list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
11313
11314        }
11315}
11316
11317/**
11318 * lpfc_sli4_hba_unset - Unset the fcoe hba
11319 * @phba: Pointer to HBA context object.
11320 *
11321 * This function is called in the SLI4 code path to reset the HBA's FCoE
11322 * function. The caller is not required to hold any lock. This routine
11323 * issues PCI function reset mailbox command to reset the FCoE function.
11324 * At the end of the function, it calls lpfc_hba_down_post function to
11325 * free any pending commands.
11326 **/
11327static void
11328lpfc_sli4_hba_unset(struct lpfc_hba *phba)
11329{
11330        int wait_cnt = 0;
11331        LPFC_MBOXQ_t *mboxq;
11332        struct pci_dev *pdev = phba->pcidev;
11333
11334        lpfc_stop_hba_timers(phba);
11335        if (phba->pport)
11336                phba->sli4_hba.intr_enable = 0;
11337
11338        /*
11339         * Gracefully wait out the potential current outstanding asynchronous
11340         * mailbox command.
11341         */
11342
11343        /* First, block any pending async mailbox command from posted */
11344        spin_lock_irq(&phba->hbalock);
11345        phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
11346        spin_unlock_irq(&phba->hbalock);
11347        /* Now, trying to wait it out if we can */
11348        while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
11349                msleep(10);
11350                if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
11351                        break;
11352        }
11353        /* Forcefully release the outstanding mailbox command if timed out */
11354        if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
11355                spin_lock_irq(&phba->hbalock);
11356                mboxq = phba->sli.mbox_active;
11357                mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
11358                __lpfc_mbox_cmpl_put(phba, mboxq);
11359                phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
11360                phba->sli.mbox_active = NULL;
11361                spin_unlock_irq(&phba->hbalock);
11362        }
11363
11364        /* Abort all iocbs associated with the hba */
11365        lpfc_sli_hba_iocb_abort(phba);
11366
11367        /* Wait for completion of device XRI exchange busy */
11368        lpfc_sli4_xri_exchange_busy_wait(phba);
11369
11370        /* Disable PCI subsystem interrupt */
11371        lpfc_sli4_disable_intr(phba);
11372
11373        /* Disable SR-IOV if enabled */
11374        if (phba->cfg_sriov_nr_virtfn)
11375                pci_disable_sriov(pdev);
11376
11377        /* Stop kthread signal shall trigger work_done one more time */
11378        kthread_stop(phba->worker_thread);
11379
11380        /* Disable FW logging to host memory */
11381        lpfc_ras_stop_fwlog(phba);
11382
11383        /* Unset the queues shared with the hardware then release all
11384         * allocated resources.
11385         */
11386        lpfc_sli4_queue_unset(phba);
11387        lpfc_sli4_queue_destroy(phba);
11388
11389        /* Reset SLI4 HBA FCoE function */
11390        lpfc_pci_function_reset(phba);
11391
11392        /* Free RAS DMA memory */
11393        if (phba->ras_fwlog.ras_enabled)
11394                lpfc_sli4_ras_dma_free(phba);
11395
11396        /* Stop the SLI4 device port */
11397        if (phba->pport)
11398                phba->pport->work_port_events = 0;
11399}
11400
11401 /**
11402 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
11403 * @phba: Pointer to HBA context object.
11404 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
11405 *
11406 * This function is called in the SLI4 code path to read the port's
11407 * sli4 capabilities.
11408 *
11409 * This function may be be called from any context that can block-wait
11410 * for the completion.  The expectation is that this routine is called
11411 * typically from probe_one or from the online routine.
11412 **/
11413int
11414lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
11415{
11416        int rc;
11417        struct lpfc_mqe *mqe;
11418        struct lpfc_pc_sli4_params *sli4_params;
11419        uint32_t mbox_tmo;
11420
11421        rc = 0;
11422        mqe = &mboxq->u.mqe;
11423
11424        /* Read the port's SLI4 Parameters port capabilities */
11425        lpfc_pc_sli4_params(mboxq);
11426        if (!phba->sli4_hba.intr_enable)
11427                rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11428        else {
11429                mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
11430                rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
11431        }
11432
11433        if (unlikely(rc))
11434                return 1;
11435
11436        sli4_params = &phba->sli4_hba.pc_sli4_params;
11437        sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
11438        sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
11439        sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
11440        sli4_params->featurelevel_1 = bf_get(featurelevel_1,
11441                                             &mqe->un.sli4_params);
11442        sli4_params->featurelevel_2 = bf_get(featurelevel_2,
11443                                             &mqe->un.sli4_params);
11444        sli4_params->proto_types = mqe->un.sli4_params.word3;
11445        sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
11446        sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
11447        sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
11448        sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
11449        sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
11450        sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
11451        sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
11452        sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
11453        sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
11454        sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
11455        sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
11456        sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
11457        sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
11458        sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
11459        sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
11460        sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
11461        sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
11462        sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
11463        sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
11464        sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
11465
11466        /* Make sure that sge_supp_len can be handled by the driver */
11467        if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
11468                sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
11469
11470        return rc;
11471}
11472
11473/**
11474 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
11475 * @phba: Pointer to HBA context object.
11476 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
11477 *
11478 * This function is called in the SLI4 code path to read the port's
11479 * sli4 capabilities.
11480 *
11481 * This function may be be called from any context that can block-wait
11482 * for the completion.  The expectation is that this routine is called
11483 * typically from probe_one or from the online routine.
11484 **/
11485int
11486lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
11487{
11488        int rc;
11489        struct lpfc_mqe *mqe = &mboxq->u.mqe;
11490        struct lpfc_pc_sli4_params *sli4_params;
11491        uint32_t mbox_tmo;
11492        int length;
11493        bool exp_wqcq_pages = true;
11494        struct lpfc_sli4_parameters *mbx_sli4_parameters;
11495
11496        /*
11497         * By default, the driver assumes the SLI4 port requires RPI
11498         * header postings.  The SLI4_PARAM response will correct this
11499         * assumption.
11500         */
11501        phba->sli4_hba.rpi_hdrs_in_use = 1;
11502
11503        /* Read the port's SLI4 Config Parameters */
11504        length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
11505                  sizeof(struct lpfc_sli4_cfg_mhdr));
11506        lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
11507                         LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
11508                         length, LPFC_SLI4_MBX_EMBED);
11509        if (!phba->sli4_hba.intr_enable)
11510                rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11511        else {
11512                mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
11513                rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
11514        }
11515        if (unlikely(rc))
11516                return rc;
11517        sli4_params = &phba->sli4_hba.pc_sli4_params;
11518        mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
11519        sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
11520        sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
11521        sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
11522        sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
11523                                             mbx_sli4_parameters);
11524        sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
11525                                             mbx_sli4_parameters);
11526        if (bf_get(cfg_phwq, mbx_sli4_parameters))
11527                phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
11528        else
11529                phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
11530        sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
11531        sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
11532        sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
11533        sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
11534        sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
11535        sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
11536        sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
11537        sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
11538        sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
11539        sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
11540        sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters);
11541        sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
11542                                            mbx_sli4_parameters);
11543        sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
11544        sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
11545                                           mbx_sli4_parameters);
11546        phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
11547        phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
11548
11549        /* Check for Extended Pre-Registered SGL support */
11550        phba->cfg_xpsgl = bf_get(cfg_xpsgl, mbx_sli4_parameters);
11551
11552        /* Check for firmware nvme support */
11553        rc = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
11554                     bf_get(cfg_xib, mbx_sli4_parameters));
11555
11556        if (rc) {
11557                /* Save this to indicate the Firmware supports NVME */
11558                sli4_params->nvme = 1;
11559
11560                /* Firmware NVME support, check driver FC4 NVME support */
11561                if (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) {
11562                        lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
11563                                        "6133 Disabling NVME support: "
11564                                        "FC4 type not supported: x%x\n",
11565                                        phba->cfg_enable_fc4_type);
11566                        goto fcponly;
11567                }
11568        } else {
11569                /* No firmware NVME support, check driver FC4 NVME support */
11570                sli4_params->nvme = 0;
11571                if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11572                        lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
11573                                        "6101 Disabling NVME support: Not "
11574                                        "supported by firmware (%d %d) x%x\n",
11575                                        bf_get(cfg_nvme, mbx_sli4_parameters),
11576                                        bf_get(cfg_xib, mbx_sli4_parameters),
11577                                        phba->cfg_enable_fc4_type);
11578fcponly:
11579                        phba->nvme_support = 0;
11580                        phba->nvmet_support = 0;
11581                        phba->cfg_nvmet_mrq = 0;
11582                        phba->cfg_nvme_seg_cnt = 0;
11583
11584                        /* If no FC4 type support, move to just SCSI support */
11585                        if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
11586                                return -ENODEV;
11587                        phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
11588                }
11589        }
11590
11591        /* If the NVME FC4 type is enabled, scale the sg_seg_cnt to
11592         * accommodate 512K and 1M IOs in a single nvme buf and supply
11593         * enough NVME LS iocb buffers for larger connectivity counts.
11594         */
11595        if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11596                phba->cfg_sg_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
11597                phba->cfg_iocb_cnt = 5;
11598        }
11599
11600        /* Only embed PBDE for if_type 6, PBDE support requires xib be set */
11601        if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
11602            LPFC_SLI_INTF_IF_TYPE_6) || (!bf_get(cfg_xib, mbx_sli4_parameters)))
11603                phba->cfg_enable_pbde = 0;
11604
11605        /*
11606         * To support Suppress Response feature we must satisfy 3 conditions.
11607         * lpfc_suppress_rsp module parameter must be set (default).
11608         * In SLI4-Parameters Descriptor:
11609         * Extended Inline Buffers (XIB) must be supported.
11610         * Suppress Response IU Not Supported (SRIUNS) must NOT be supported
11611         * (double negative).
11612         */
11613        if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
11614            !(bf_get(cfg_nosr, mbx_sli4_parameters)))
11615                phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
11616        else
11617                phba->cfg_suppress_rsp = 0;
11618
11619        if (bf_get(cfg_eqdr, mbx_sli4_parameters))
11620                phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
11621
11622        /* Make sure that sge_supp_len can be handled by the driver */
11623        if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
11624                sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
11625
11626        /*
11627         * Check whether the adapter supports an embedded copy of the
11628         * FCP CMD IU within the WQE for FCP_Ixxx commands. In order
11629         * to use this option, 128-byte WQEs must be used.
11630         */
11631        if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
11632                phba->fcp_embed_io = 1;
11633        else
11634                phba->fcp_embed_io = 0;
11635
11636        lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
11637                        "6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n",
11638                        bf_get(cfg_xib, mbx_sli4_parameters),
11639                        phba->cfg_enable_pbde,
11640                        phba->fcp_embed_io, phba->nvme_support,
11641                        phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
11642
11643        if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
11644            LPFC_SLI_INTF_IF_TYPE_2) &&
11645            (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
11646                 LPFC_SLI_INTF_FAMILY_LNCR_A0))
11647                exp_wqcq_pages = false;
11648
11649        if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
11650            (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
11651            exp_wqcq_pages &&
11652            (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
11653                phba->enab_exp_wqcq_pages = 1;
11654        else
11655                phba->enab_exp_wqcq_pages = 0;
11656        /*
11657         * Check if the SLI port supports MDS Diagnostics
11658         */
11659        if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
11660                phba->mds_diags_support = 1;
11661        else
11662                phba->mds_diags_support = 0;
11663
11664        /*
11665         * Check if the SLI port supports NSLER
11666         */
11667        if (bf_get(cfg_nsler, mbx_sli4_parameters))
11668                phba->nsler = 1;
11669        else
11670                phba->nsler = 0;
11671
11672        return 0;
11673}
11674
11675/**
11676 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
11677 * @pdev: pointer to PCI device
11678 * @pid: pointer to PCI device identifier
11679 *
11680 * This routine is to be called to attach a device with SLI-3 interface spec
11681 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
11682 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
11683 * information of the device and driver to see if the driver state that it can
11684 * support this kind of device. If the match is successful, the driver core
11685 * invokes this routine. If this routine determines it can claim the HBA, it
11686 * does all the initialization that it needs to do to handle the HBA properly.
11687 *
11688 * Return code
11689 *      0 - driver can claim the device
11690 *      negative value - driver can not claim the device
11691 **/
11692static int
11693lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
11694{
11695        struct lpfc_hba   *phba;
11696        struct lpfc_vport *vport = NULL;
11697        struct Scsi_Host  *shost = NULL;
11698        int error;
11699        uint32_t cfg_mode, intr_mode;
11700
11701        /* Allocate memory for HBA structure */
11702        phba = lpfc_hba_alloc(pdev);
11703        if (!phba)
11704                return -ENOMEM;
11705
11706        /* Perform generic PCI device enabling operation */
11707        error = lpfc_enable_pci_dev(phba);
11708        if (error)
11709                goto out_free_phba;
11710
11711        /* Set up SLI API function jump table for PCI-device group-0 HBAs */
11712        error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
11713        if (error)
11714                goto out_disable_pci_dev;
11715
11716        /* Set up SLI-3 specific device PCI memory space */
11717        error = lpfc_sli_pci_mem_setup(phba);
11718        if (error) {
11719                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11720                                "1402 Failed to set up pci memory space.\n");
11721                goto out_disable_pci_dev;
11722        }
11723
11724        /* Set up SLI-3 specific device driver resources */
11725        error = lpfc_sli_driver_resource_setup(phba);
11726        if (error) {
11727                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11728                                "1404 Failed to set up driver resource.\n");
11729                goto out_unset_pci_mem_s3;
11730        }
11731
11732        /* Initialize and populate the iocb list per host */
11733
11734        error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
11735        if (error) {
11736                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11737                                "1405 Failed to initialize iocb list.\n");
11738                goto out_unset_driver_resource_s3;
11739        }
11740
11741        /* Set up common device driver resources */
11742        error = lpfc_setup_driver_resource_phase2(phba);
11743        if (error) {
11744                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11745                                "1406 Failed to set up driver resource.\n");
11746                goto out_free_iocb_list;
11747        }
11748
11749        /* Get the default values for Model Name and Description */
11750        lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
11751
11752        /* Create SCSI host to the physical port */
11753        error = lpfc_create_shost(phba);
11754        if (error) {
11755                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11756                                "1407 Failed to create scsi host.\n");
11757                goto out_unset_driver_resource;
11758        }
11759
11760        /* Configure sysfs attributes */
11761        vport = phba->pport;
11762        error = lpfc_alloc_sysfs_attr(vport);
11763        if (error) {
11764                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11765                                "1476 Failed to allocate sysfs attr\n");
11766                goto out_destroy_shost;
11767        }
11768
11769        shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
11770        /* Now, trying to enable interrupt and bring up the device */
11771        cfg_mode = phba->cfg_use_msi;
11772        while (true) {
11773                /* Put device to a known state before enabling interrupt */
11774                lpfc_stop_port(phba);
11775                /* Configure and enable interrupt */
11776                intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
11777                if (intr_mode == LPFC_INTR_ERROR) {
11778                        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11779                                        "0431 Failed to enable interrupt.\n");
11780                        error = -ENODEV;
11781                        goto out_free_sysfs_attr;
11782                }
11783                /* SLI-3 HBA setup */
11784                if (lpfc_sli_hba_setup(phba)) {
11785                        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11786                                        "1477 Failed to set up hba\n");
11787                        error = -ENODEV;
11788                        goto out_remove_device;
11789                }
11790
11791                /* Wait 50ms for the interrupts of previous mailbox commands */
11792                msleep(50);
11793                /* Check active interrupts on message signaled interrupts */
11794                if (intr_mode == 0 ||
11795                    phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
11796                        /* Log the current active interrupt mode */
11797                        phba->intr_mode = intr_mode;
11798                        lpfc_log_intr_mode(phba, intr_mode);
11799                        break;
11800                } else {
11801                        lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11802                                        "0447 Configure interrupt mode (%d) "
11803                                        "failed active interrupt test.\n",
11804                                        intr_mode);
11805                        /* Disable the current interrupt mode */
11806                        lpfc_sli_disable_intr(phba);
11807                        /* Try next level of interrupt mode */
11808                        cfg_mode = --intr_mode;
11809                }
11810        }
11811
11812        /* Perform post initialization setup */
11813        lpfc_post_init_setup(phba);
11814
11815        /* Check if there are static vports to be created. */
11816        lpfc_create_static_vport(phba);
11817
11818        return 0;
11819
11820out_remove_device:
11821        lpfc_unset_hba(phba);
11822out_free_sysfs_attr:
11823        lpfc_free_sysfs_attr(vport);
11824out_destroy_shost:
11825        lpfc_destroy_shost(phba);
11826out_unset_driver_resource:
11827        lpfc_unset_driver_resource_phase2(phba);
11828out_free_iocb_list:
11829        lpfc_free_iocb_list(phba);
11830out_unset_driver_resource_s3:
11831        lpfc_sli_driver_resource_unset(phba);
11832out_unset_pci_mem_s3:
11833        lpfc_sli_pci_mem_unset(phba);
11834out_disable_pci_dev:
11835        lpfc_disable_pci_dev(phba);
11836        if (shost)
11837                scsi_host_put(shost);
11838out_free_phba:
11839        lpfc_hba_free(phba);
11840        return error;
11841}
11842
11843/**
11844 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
11845 * @pdev: pointer to PCI device
11846 *
11847 * This routine is to be called to disattach a device with SLI-3 interface
11848 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
11849 * removed from PCI bus, it performs all the necessary cleanup for the HBA
11850 * device to be removed from the PCI subsystem properly.
11851 **/
11852static void
11853lpfc_pci_remove_one_s3(struct pci_dev *pdev)
11854{
11855        struct Scsi_Host  *shost = pci_get_drvdata(pdev);
11856        struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
11857        struct lpfc_vport **vports;
11858        struct lpfc_hba   *phba = vport->phba;
11859        int i;
11860
11861        spin_lock_irq(&phba->hbalock);
11862        vport->load_flag |= FC_UNLOADING;
11863        spin_unlock_irq(&phba->hbalock);
11864
11865        lpfc_free_sysfs_attr(vport);
11866
11867        /* Release all the vports against this physical port */
11868        vports = lpfc_create_vport_work_array(phba);
11869        if (vports != NULL)
11870                for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
11871                        if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
11872                                continue;
11873                        fc_vport_terminate(vports[i]->fc_vport);
11874                }
11875        lpfc_destroy_vport_work_array(phba, vports);
11876
11877        /* Remove FC host and then SCSI host with the physical port */
11878        fc_remove_host(shost);
11879        scsi_remove_host(shost);
11880
11881        lpfc_cleanup(vport);
11882
11883        /*
11884         * Bring down the SLI Layer. This step disable all interrupts,
11885         * clears the rings, discards all mailbox commands, and resets
11886         * the HBA.
11887         */
11888
11889        /* HBA interrupt will be disabled after this call */
11890        lpfc_sli_hba_down(phba);
11891        /* Stop kthread signal shall trigger work_done one more time */
11892        kthread_stop(phba->worker_thread);
11893        /* Final cleanup of txcmplq and reset the HBA */
11894        lpfc_sli_brdrestart(phba);
11895
11896        kfree(phba->vpi_bmask);
11897        kfree(phba->vpi_ids);
11898
11899        lpfc_stop_hba_timers(phba);
11900        spin_lock_irq(&phba->port_list_lock);
11901        list_del_init(&vport->listentry);
11902        spin_unlock_irq(&phba->port_list_lock);
11903
11904        lpfc_debugfs_terminate(vport);
11905
11906        /* Disable SR-IOV if enabled */
11907        if (phba->cfg_sriov_nr_virtfn)
11908                pci_disable_sriov(pdev);
11909
11910        /* Disable interrupt */
11911        lpfc_sli_disable_intr(phba);
11912
11913        scsi_host_put(shost);
11914
11915        /*
11916         * Call scsi_free before mem_free since scsi bufs are released to their
11917         * corresponding pools here.
11918         */
11919        lpfc_scsi_free(phba);
11920        lpfc_free_iocb_list(phba);
11921
11922        lpfc_mem_free_all(phba);
11923
11924        dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
11925                          phba->hbqslimp.virt, phba->hbqslimp.phys);
11926
11927        /* Free resources associated with SLI2 interface */
11928        dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
11929                          phba->slim2p.virt, phba->slim2p.phys);
11930
11931        /* unmap adapter SLIM and Control Registers */
11932        iounmap(phba->ctrl_regs_memmap_p);
11933        iounmap(phba->slim_memmap_p);
11934
11935        lpfc_hba_free(phba);
11936
11937        pci_release_mem_regions(pdev);
11938        pci_disable_device(pdev);
11939}
11940
11941/**
11942 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
11943 * @pdev: pointer to PCI device
11944 * @msg: power management message
11945 *
11946 * This routine is to be called from the kernel's PCI subsystem to support
11947 * system Power Management (PM) to device with SLI-3 interface spec. When
11948 * PM invokes this method, it quiesces the device by stopping the driver's
11949 * worker thread for the device, turning off device's interrupt and DMA,
11950 * and bring the device offline. Note that as the driver implements the
11951 * minimum PM requirements to a power-aware driver's PM support for the
11952 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
11953 * to the suspend() method call will be treated as SUSPEND and the driver will
11954 * fully reinitialize its device during resume() method call, the driver will
11955 * set device to PCI_D3hot state in PCI config space instead of setting it
11956 * according to the @msg provided by the PM.
11957 *
11958 * Return code
11959 *      0 - driver suspended the device
11960 *      Error otherwise
11961 **/
11962static int
11963lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
11964{
11965        struct Scsi_Host *shost = pci_get_drvdata(pdev);
11966        struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11967
11968        lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11969                        "0473 PCI device Power Management suspend.\n");
11970
11971        /* Bring down the device */
11972        lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11973        lpfc_offline(phba);
11974        kthread_stop(phba->worker_thread);
11975
11976        /* Disable interrupt from device */
11977        lpfc_sli_disable_intr(phba);
11978
11979        /* Save device state to PCI config space */
11980        pci_save_state(pdev);
11981        pci_set_power_state(pdev, PCI_D3hot);
11982
11983        return 0;
11984}
11985
11986/**
11987 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
11988 * @pdev: pointer to PCI device
11989 *
11990 * This routine is to be called from the kernel's PCI subsystem to support
11991 * system Power Management (PM) to device with SLI-3 interface spec. When PM
11992 * invokes this method, it restores the device's PCI config space state and
11993 * fully reinitializes the device and brings it online. Note that as the
11994 * driver implements the minimum PM requirements to a power-aware driver's
11995 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
11996 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
11997 * driver will fully reinitialize its device during resume() method call,
11998 * the device will be set to PCI_D0 directly in PCI config space before
11999 * restoring the state.
12000 *
12001 * Return code
12002 *      0 - driver suspended the device
12003 *      Error otherwise
12004 **/
12005static int
12006lpfc_pci_resume_one_s3(struct pci_dev *pdev)
12007{
12008        struct Scsi_Host *shost = pci_get_drvdata(pdev);
12009        struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12010        uint32_t intr_mode;
12011        int error;
12012
12013        lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12014                        "0452 PCI device Power Management resume.\n");
12015
12016        /* Restore device state from PCI config space */
12017        pci_set_power_state(pdev, PCI_D0);
12018        pci_restore_state(pdev);
12019
12020        /*
12021         * As the new kernel behavior of pci_restore_state() API call clears
12022         * device saved_state flag, need to save the restored state again.
12023         */
12024        pci_save_state(pdev);
12025
12026        if (pdev->is_busmaster)
12027                pci_set_master(pdev);
12028
12029        /* Startup the kernel thread for this host adapter. */
12030        phba->worker_thread = kthread_run(lpfc_do_work, phba,
12031                                        "lpfc_worker_%d", phba->brd_no);
12032        if (IS_ERR(phba->worker_thread)) {
12033                error = PTR_ERR(phba->worker_thread);
12034                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12035                                "0434 PM resume failed to start worker "
12036                                "thread: error=x%x.\n", error);
12037                return error;
12038        }
12039
12040        /* Configure and enable interrupt */
12041        intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
12042        if (intr_mode == LPFC_INTR_ERROR) {
12043                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12044                                "0430 PM resume Failed to enable interrupt\n");
12045                return -EIO;
12046        } else
12047                phba->intr_mode = intr_mode;
12048
12049        /* Restart HBA and bring it online */
12050        lpfc_sli_brdrestart(phba);
12051        lpfc_online(phba);
12052
12053        /* Log the current active interrupt mode */
12054        lpfc_log_intr_mode(phba, phba->intr_mode);
12055
12056        return 0;
12057}
12058
12059/**
12060 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
12061 * @phba: pointer to lpfc hba data structure.
12062 *
12063 * This routine is called to prepare the SLI3 device for PCI slot recover. It
12064 * aborts all the outstanding SCSI I/Os to the pci device.
12065 **/
12066static void
12067lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
12068{
12069        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12070                        "2723 PCI channel I/O abort preparing for recovery\n");
12071
12072        /*
12073         * There may be errored I/Os through HBA, abort all I/Os on txcmplq
12074         * and let the SCSI mid-layer to retry them to recover.
12075         */
12076        lpfc_sli_abort_fcp_rings(phba);
12077}
12078
12079/**
12080 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
12081 * @phba: pointer to lpfc hba data structure.
12082 *
12083 * This routine is called to prepare the SLI3 device for PCI slot reset. It
12084 * disables the device interrupt and pci device, and aborts the internal FCP
12085 * pending I/Os.
12086 **/
12087static void
12088lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
12089{
12090        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12091                        "2710 PCI channel disable preparing for reset\n");
12092
12093        /* Block any management I/Os to the device */
12094        lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
12095
12096        /* Block all SCSI devices' I/Os on the host */
12097        lpfc_scsi_dev_block(phba);
12098
12099        /* Flush all driver's outstanding SCSI I/Os as we are to reset */
12100        lpfc_sli_flush_io_rings(phba);
12101
12102        /* stop all timers */
12103        lpfc_stop_hba_timers(phba);
12104
12105        /* Disable interrupt and pci device */
12106        lpfc_sli_disable_intr(phba);
12107        pci_disable_device(phba->pcidev);
12108}
12109
12110/**
12111 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
12112 * @phba: pointer to lpfc hba data structure.
12113 *
12114 * This routine is called to prepare the SLI3 device for PCI slot permanently
12115 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
12116 * pending I/Os.
12117 **/
12118static void
12119lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
12120{
12121        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12122                        "2711 PCI channel permanent disable for failure\n");
12123        /* Block all SCSI devices' I/Os on the host */
12124        lpfc_scsi_dev_block(phba);
12125
12126        /* stop all timers */
12127        lpfc_stop_hba_timers(phba);
12128
12129        /* Clean up all driver's outstanding SCSI I/Os */
12130        lpfc_sli_flush_io_rings(phba);
12131}
12132
12133/**
12134 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
12135 * @pdev: pointer to PCI device.
12136 * @state: the current PCI connection state.
12137 *
12138 * This routine is called from the PCI subsystem for I/O error handling to
12139 * device with SLI-3 interface spec. This function is called by the PCI
12140 * subsystem after a PCI bus error affecting this device has been detected.
12141 * When this function is invoked, it will need to stop all the I/Os and
12142 * interrupt(s) to the device. Once that is done, it will return
12143 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
12144 * as desired.
12145 *
12146 * Return codes
12147 *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
12148 *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12149 *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12150 **/
12151static pci_ers_result_t
12152lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
12153{
12154        struct Scsi_Host *shost = pci_get_drvdata(pdev);
12155        struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12156
12157        switch (state) {
12158        case pci_channel_io_normal:
12159                /* Non-fatal error, prepare for recovery */
12160                lpfc_sli_prep_dev_for_recover(phba);
12161                return PCI_ERS_RESULT_CAN_RECOVER;
12162        case pci_channel_io_frozen:
12163                /* Fatal error, prepare for slot reset */
12164                lpfc_sli_prep_dev_for_reset(phba);
12165                return PCI_ERS_RESULT_NEED_RESET;
12166        case pci_channel_io_perm_failure:
12167                /* Permanent failure, prepare for device down */
12168                lpfc_sli_prep_dev_for_perm_failure(phba);
12169                return PCI_ERS_RESULT_DISCONNECT;
12170        default:
12171                /* Unknown state, prepare and request slot reset */
12172                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12173                                "0472 Unknown PCI error state: x%x\n", state);
12174                lpfc_sli_prep_dev_for_reset(phba);
12175                return PCI_ERS_RESULT_NEED_RESET;
12176        }
12177}
12178
12179/**
12180 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
12181 * @pdev: pointer to PCI device.
12182 *
12183 * This routine is called from the PCI subsystem for error handling to
12184 * device with SLI-3 interface spec. This is called after PCI bus has been
12185 * reset to restart the PCI card from scratch, as if from a cold-boot.
12186 * During the PCI subsystem error recovery, after driver returns
12187 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
12188 * recovery and then call this routine before calling the .resume method
12189 * to recover the device. This function will initialize the HBA device,
12190 * enable the interrupt, but it will just put the HBA to offline state
12191 * without passing any I/O traffic.
12192 *
12193 * Return codes
12194 *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
12195 *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12196 */
12197static pci_ers_result_t
12198lpfc_io_slot_reset_s3(struct pci_dev *pdev)
12199{
12200        struct Scsi_Host *shost = pci_get_drvdata(pdev);
12201        struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12202        struct lpfc_sli *psli = &phba->sli;
12203        uint32_t intr_mode;
12204
12205        dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
12206        if (pci_enable_device_mem(pdev)) {
12207                printk(KERN_ERR "lpfc: Cannot re-enable "
12208                        "PCI device after reset.\n");
12209                return PCI_ERS_RESULT_DISCONNECT;
12210        }
12211
12212        pci_restore_state(pdev);
12213
12214        /*
12215         * As the new kernel behavior of pci_restore_state() API call clears
12216         * device saved_state flag, need to save the restored state again.
12217         */
12218        pci_save_state(pdev);
12219
12220        if (pdev->is_busmaster)
12221                pci_set_master(pdev);
12222
12223        spin_lock_irq(&phba->hbalock);
12224        psli->sli_flag &= ~LPFC_SLI_ACTIVE;
12225        spin_unlock_irq(&phba->hbalock);
12226
12227        /* Configure and enable interrupt */
12228        intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
12229        if (intr_mode == LPFC_INTR_ERROR) {
12230                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12231                                "0427 Cannot re-enable interrupt after "
12232                                "slot reset.\n");
12233                return PCI_ERS_RESULT_DISCONNECT;
12234        } else
12235                phba->intr_mode = intr_mode;
12236
12237        /* Take device offline, it will perform cleanup */
12238        lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12239        lpfc_offline(phba);
12240        lpfc_sli_brdrestart(phba);
12241
12242        /* Log the current active interrupt mode */
12243        lpfc_log_intr_mode(phba, phba->intr_mode);
12244
12245        return PCI_ERS_RESULT_RECOVERED;
12246}
12247
12248/**
12249 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
12250 * @pdev: pointer to PCI device
12251 *
12252 * This routine is called from the PCI subsystem for error handling to device
12253 * with SLI-3 interface spec. It is called when kernel error recovery tells
12254 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
12255 * error recovery. After this call, traffic can start to flow from this device
12256 * again.
12257 */
12258static void
12259lpfc_io_resume_s3(struct pci_dev *pdev)
12260{
12261        struct Scsi_Host *shost = pci_get_drvdata(pdev);
12262        struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12263
12264        /* Bring device online, it will be no-op for non-fatal error resume */
12265        lpfc_online(phba);
12266}
12267
12268/**
12269 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
12270 * @phba: pointer to lpfc hba data structure.
12271 *
12272 * returns the number of ELS/CT IOCBs to reserve
12273 **/
12274int
12275lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
12276{
12277        int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
12278
12279        if (phba->sli_rev == LPFC_SLI_REV4) {
12280                if (max_xri <= 100)
12281                        return 10;
12282                else if (max_xri <= 256)
12283                        return 25;
12284                else if (max_xri <= 512)
12285                        return 50;
12286                else if (max_xri <= 1024)
12287                        return 100;
12288                else if (max_xri <= 1536)
12289                        return 150;
12290                else if (max_xri <= 2048)
12291                        return 200;
12292                else
12293                        return 250;
12294        } else
12295                return 0;
12296}
12297
12298/**
12299 * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
12300 * @phba: pointer to lpfc hba data structure.
12301 *
12302 * returns the number of ELS/CT + NVMET IOCBs to reserve
12303 **/
12304int
12305lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
12306{
12307        int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
12308
12309        if (phba->nvmet_support)
12310                max_xri += LPFC_NVMET_BUF_POST;
12311        return max_xri;
12312}
12313
12314
12315static void
12316lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
12317        uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
12318        const struct firmware *fw)
12319{
12320        if ((offset == ADD_STATUS_FW_NOT_SUPPORTED) ||
12321            (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC &&
12322             magic_number != MAGIC_NUMER_G6) ||
12323            (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC &&
12324             magic_number != MAGIC_NUMER_G7))
12325                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12326                        "3030 This firmware version is not supported on "
12327                        "this HBA model. Device:%x Magic:%x Type:%x "
12328                        "ID:%x Size %d %zd\n",
12329                        phba->pcidev->device, magic_number, ftype, fid,
12330                        fsize, fw->size);
12331        else
12332                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12333                        "3022 FW Download failed. Device:%x Magic:%x Type:%x "
12334                        "ID:%x Size %d %zd\n",
12335                        phba->pcidev->device, magic_number, ftype, fid,
12336                        fsize, fw->size);
12337}
12338
12339
12340/**
12341 * lpfc_write_firmware - attempt to write a firmware image to the port
12342 * @fw: pointer to firmware image returned from request_firmware.
12343 * @phba: pointer to lpfc hba data structure.
12344 *
12345 **/
12346static void
12347lpfc_write_firmware(const struct firmware *fw, void *context)
12348{
12349        struct lpfc_hba *phba = (struct lpfc_hba *)context;
12350        char fwrev[FW_REV_STR_SIZE];
12351        struct lpfc_grp_hdr *image;
12352        struct list_head dma_buffer_list;
12353        int i, rc = 0;
12354        struct lpfc_dmabuf *dmabuf, *next;
12355        uint32_t offset = 0, temp_offset = 0;
12356        uint32_t magic_number, ftype, fid, fsize;
12357
12358        /* It can be null in no-wait mode, sanity check */
12359        if (!fw) {
12360                rc = -ENXIO;
12361                goto out;
12362        }
12363        image = (struct lpfc_grp_hdr *)fw->data;
12364
12365        magic_number = be32_to_cpu(image->magic_number);
12366        ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
12367        fid = bf_get_be32(lpfc_grp_hdr_id, image);
12368        fsize = be32_to_cpu(image->size);
12369
12370        INIT_LIST_HEAD(&dma_buffer_list);
12371        lpfc_decode_firmware_rev(phba, fwrev, 1);
12372        if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
12373                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12374                                "3023 Updating Firmware, Current Version:%s "
12375                                "New Version:%s\n",
12376                                fwrev, image->revision);
12377                for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
12378                        dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
12379                                         GFP_KERNEL);
12380                        if (!dmabuf) {
12381                                rc = -ENOMEM;
12382                                goto release_out;
12383                        }
12384                        dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
12385                                                          SLI4_PAGE_SIZE,
12386                                                          &dmabuf->phys,
12387                                                          GFP_KERNEL);
12388                        if (!dmabuf->virt) {
12389                                kfree(dmabuf);
12390                                rc = -ENOMEM;
12391                                goto release_out;
12392                        }
12393                        list_add_tail(&dmabuf->list, &dma_buffer_list);
12394                }
12395                while (offset < fw->size) {
12396                        temp_offset = offset;
12397                        list_for_each_entry(dmabuf, &dma_buffer_list, list) {
12398                                if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
12399                                        memcpy(dmabuf->virt,
12400                                               fw->data + temp_offset,
12401                                               fw->size - temp_offset);
12402                                        temp_offset = fw->size;
12403                                        break;
12404                                }
12405                                memcpy(dmabuf->virt, fw->data + temp_offset,
12406                                       SLI4_PAGE_SIZE);
12407                                temp_offset += SLI4_PAGE_SIZE;
12408                        }
12409                        rc = lpfc_wr_object(phba, &dma_buffer_list,
12410                                    (fw->size - offset), &offset);
12411                        if (rc) {
12412                                lpfc_log_write_firmware_error(phba, offset,
12413                                        magic_number, ftype, fid, fsize, fw);
12414                                goto release_out;
12415                        }
12416                }
12417                rc = offset;
12418        } else
12419                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12420                                "3029 Skipped Firmware update, Current "
12421                                "Version:%s New Version:%s\n",
12422                                fwrev, image->revision);
12423
12424release_out:
12425        list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
12426                list_del(&dmabuf->list);
12427                dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
12428                                  dmabuf->virt, dmabuf->phys);
12429                kfree(dmabuf);
12430        }
12431        release_firmware(fw);
12432out:
12433        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12434                        "3024 Firmware update done: %d.\n", rc);
12435        return;
12436}
12437
12438/**
12439 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
12440 * @phba: pointer to lpfc hba data structure.
12441 *
12442 * This routine is called to perform Linux generic firmware upgrade on device
12443 * that supports such feature.
12444 **/
12445int
12446lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
12447{
12448        uint8_t file_name[ELX_MODEL_NAME_SIZE];
12449        int ret;
12450        const struct firmware *fw;
12451
12452        /* Only supported on SLI4 interface type 2 for now */
12453        if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
12454            LPFC_SLI_INTF_IF_TYPE_2)
12455                return -EPERM;
12456
12457        snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
12458
12459        if (fw_upgrade == INT_FW_UPGRADE) {
12460                ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
12461                                        file_name, &phba->pcidev->dev,
12462                                        GFP_KERNEL, (void *)phba,
12463                                        lpfc_write_firmware);
12464        } else if (fw_upgrade == RUN_FW_UPGRADE) {
12465                ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
12466                if (!ret)
12467                        lpfc_write_firmware(fw, (void *)phba);
12468        } else {
12469                ret = -EINVAL;
12470        }
12471
12472        return ret;
12473}
12474
12475/**
12476 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
12477 * @pdev: pointer to PCI device
12478 * @pid: pointer to PCI device identifier
12479 *
12480 * This routine is called from the kernel's PCI subsystem to device with
12481 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
12482 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
12483 * information of the device and driver to see if the driver state that it
12484 * can support this kind of device. If the match is successful, the driver
12485 * core invokes this routine. If this routine determines it can claim the HBA,
12486 * it does all the initialization that it needs to do to handle the HBA
12487 * properly.
12488 *
12489 * Return code
12490 *      0 - driver can claim the device
12491 *      negative value - driver can not claim the device
12492 **/
12493static int
12494lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
12495{
12496        struct lpfc_hba   *phba;
12497        struct lpfc_vport *vport = NULL;
12498        struct Scsi_Host  *shost = NULL;
12499        int error;
12500        uint32_t cfg_mode, intr_mode;
12501
12502        /* Allocate memory for HBA structure */
12503        phba = lpfc_hba_alloc(pdev);
12504        if (!phba)
12505                return -ENOMEM;
12506
12507        /* Perform generic PCI device enabling operation */
12508        error = lpfc_enable_pci_dev(phba);
12509        if (error)
12510                goto out_free_phba;
12511
12512        /* Set up SLI API function jump table for PCI-device group-1 HBAs */
12513        error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
12514        if (error)
12515                goto out_disable_pci_dev;
12516
12517        /* Set up SLI-4 specific device PCI memory space */
12518        error = lpfc_sli4_pci_mem_setup(phba);
12519        if (error) {
12520                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12521                                "1410 Failed to set up pci memory space.\n");
12522                goto out_disable_pci_dev;
12523        }
12524
12525        /* Set up SLI-4 Specific device driver resources */
12526        error = lpfc_sli4_driver_resource_setup(phba);
12527        if (error) {
12528                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12529                                "1412 Failed to set up driver resource.\n");
12530                goto out_unset_pci_mem_s4;
12531        }
12532
12533        INIT_LIST_HEAD(&phba->active_rrq_list);
12534        INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
12535
12536        /* Set up common device driver resources */
12537        error = lpfc_setup_driver_resource_phase2(phba);
12538        if (error) {
12539                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12540                                "1414 Failed to set up driver resource.\n");
12541                goto out_unset_driver_resource_s4;
12542        }
12543
12544        /* Get the default values for Model Name and Description */
12545        lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
12546
12547        /* Now, trying to enable interrupt and bring up the device */
12548        cfg_mode = phba->cfg_use_msi;
12549
12550        /* Put device to a known state before enabling interrupt */
12551        phba->pport = NULL;
12552        lpfc_stop_port(phba);
12553
12554        /* Configure and enable interrupt */
12555        intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
12556        if (intr_mode == LPFC_INTR_ERROR) {
12557                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12558                                "0426 Failed to enable interrupt.\n");
12559                error = -ENODEV;
12560                goto out_unset_driver_resource;
12561        }
12562        /* Default to single EQ for non-MSI-X */
12563        if (phba->intr_type != MSIX) {
12564                phba->cfg_irq_chann = 1;
12565                if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
12566                        if (phba->nvmet_support)
12567                                phba->cfg_nvmet_mrq = 1;
12568                }
12569        }
12570        lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
12571
12572        /* Create SCSI host to the physical port */
12573        error = lpfc_create_shost(phba);
12574        if (error) {
12575                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12576                                "1415 Failed to create scsi host.\n");
12577                goto out_disable_intr;
12578        }
12579        vport = phba->pport;
12580        shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
12581
12582        /* Configure sysfs attributes */
12583        error = lpfc_alloc_sysfs_attr(vport);
12584        if (error) {
12585                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12586                                "1416 Failed to allocate sysfs attr\n");
12587                goto out_destroy_shost;
12588        }
12589
12590        /* Set up SLI-4 HBA */
12591        if (lpfc_sli4_hba_setup(phba)) {
12592                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12593                                "1421 Failed to set up hba\n");
12594                error = -ENODEV;
12595                goto out_free_sysfs_attr;
12596        }
12597
12598        /* Log the current active interrupt mode */
12599        phba->intr_mode = intr_mode;
12600        lpfc_log_intr_mode(phba, intr_mode);
12601
12602        /* Perform post initialization setup */
12603        lpfc_post_init_setup(phba);
12604
12605        /* NVME support in FW earlier in the driver load corrects the
12606         * FC4 type making a check for nvme_support unnecessary.
12607         */
12608        if (phba->nvmet_support == 0) {
12609                if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
12610                        /* Create NVME binding with nvme_fc_transport. This
12611                         * ensures the vport is initialized.  If the localport
12612                         * create fails, it should not unload the driver to
12613                         * support field issues.
12614                         */
12615                        error = lpfc_nvme_create_localport(vport);
12616                        if (error) {
12617                                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12618                                                "6004 NVME registration "
12619                                                "failed, error x%x\n",
12620                                                error);
12621                        }
12622                }
12623        }
12624
12625        /* check for firmware upgrade or downgrade */
12626        if (phba->cfg_request_firmware_upgrade)
12627                lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
12628
12629        /* Check if there are static vports to be created. */
12630        lpfc_create_static_vport(phba);
12631
12632        /* Enable RAS FW log support */
12633        lpfc_sli4_ras_setup(phba);
12634
12635        return 0;
12636
12637out_free_sysfs_attr:
12638        lpfc_free_sysfs_attr(vport);
12639out_destroy_shost:
12640        lpfc_destroy_shost(phba);
12641out_disable_intr:
12642        lpfc_sli4_disable_intr(phba);
12643out_unset_driver_resource:
12644        lpfc_unset_driver_resource_phase2(phba);
12645out_unset_driver_resource_s4:
12646        lpfc_sli4_driver_resource_unset(phba);
12647out_unset_pci_mem_s4:
12648        lpfc_sli4_pci_mem_unset(phba);
12649out_disable_pci_dev:
12650        lpfc_disable_pci_dev(phba);
12651        if (shost)
12652                scsi_host_put(shost);
12653out_free_phba:
12654        lpfc_hba_free(phba);
12655        return error;
12656}
12657
12658/**
12659 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
12660 * @pdev: pointer to PCI device
12661 *
12662 * This routine is called from the kernel's PCI subsystem to device with
12663 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
12664 * removed from PCI bus, it performs all the necessary cleanup for the HBA
12665 * device to be removed from the PCI subsystem properly.
12666 **/
12667static void
12668lpfc_pci_remove_one_s4(struct pci_dev *pdev)
12669{
12670        struct Scsi_Host *shost = pci_get_drvdata(pdev);
12671        struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
12672        struct lpfc_vport **vports;
12673        struct lpfc_hba *phba = vport->phba;
12674        int i;
12675
12676        /* Mark the device unloading flag */
12677        spin_lock_irq(&phba->hbalock);
12678        vport->load_flag |= FC_UNLOADING;
12679        spin_unlock_irq(&phba->hbalock);
12680
12681        /* Free the HBA sysfs attributes */
12682        lpfc_free_sysfs_attr(vport);
12683
12684        /* Release all the vports against this physical port */
12685        vports = lpfc_create_vport_work_array(phba);
12686        if (vports != NULL)
12687                for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
12688                        if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
12689                                continue;
12690                        fc_vport_terminate(vports[i]->fc_vport);
12691                }
12692        lpfc_destroy_vport_work_array(phba, vports);
12693
12694        /* Remove FC host and then SCSI host with the physical port */
12695        fc_remove_host(shost);
12696        scsi_remove_host(shost);
12697
12698        /* Perform ndlp cleanup on the physical port.  The nvme and nvmet
12699         * localports are destroyed after to cleanup all transport memory.
12700         */
12701        lpfc_cleanup(vport);
12702        lpfc_nvmet_destroy_targetport(phba);
12703        lpfc_nvme_destroy_localport(vport);
12704
12705        /* De-allocate multi-XRI pools */
12706        if (phba->cfg_xri_rebalancing)
12707                lpfc_destroy_multixri_pools(phba);
12708
12709        /*
12710         * Bring down the SLI Layer. This step disables all interrupts,
12711         * clears the rings, discards all mailbox commands, and resets
12712         * the HBA FCoE function.
12713         */
12714        lpfc_debugfs_terminate(vport);
12715
12716        lpfc_stop_hba_timers(phba);
12717        spin_lock_irq(&phba->port_list_lock);
12718        list_del_init(&vport->listentry);
12719        spin_unlock_irq(&phba->port_list_lock);
12720
12721        /* Perform scsi free before driver resource_unset since scsi
12722         * buffers are released to their corresponding pools here.
12723         */
12724        lpfc_io_free(phba);
12725        lpfc_free_iocb_list(phba);
12726        lpfc_sli4_hba_unset(phba);
12727
12728        lpfc_unset_driver_resource_phase2(phba);
12729        lpfc_sli4_driver_resource_unset(phba);
12730
12731        /* Unmap adapter Control and Doorbell registers */
12732        lpfc_sli4_pci_mem_unset(phba);
12733
12734        /* Release PCI resources and disable device's PCI function */
12735        scsi_host_put(shost);
12736        lpfc_disable_pci_dev(phba);
12737
12738        /* Finally, free the driver's device data structure */
12739        lpfc_hba_free(phba);
12740
12741        return;
12742}
12743
12744/**
12745 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
12746 * @pdev: pointer to PCI device
12747 * @msg: power management message
12748 *
12749 * This routine is called from the kernel's PCI subsystem to support system
12750 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
12751 * this method, it quiesces the device by stopping the driver's worker
12752 * thread for the device, turning off device's interrupt and DMA, and bring
12753 * the device offline. Note that as the driver implements the minimum PM
12754 * requirements to a power-aware driver's PM support for suspend/resume -- all
12755 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
12756 * method call will be treated as SUSPEND and the driver will fully
12757 * reinitialize its device during resume() method call, the driver will set
12758 * device to PCI_D3hot state in PCI config space instead of setting it
12759 * according to the @msg provided by the PM.
12760 *
12761 * Return code
12762 *      0 - driver suspended the device
12763 *      Error otherwise
12764 **/
12765static int
12766lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
12767{
12768        struct Scsi_Host *shost = pci_get_drvdata(pdev);
12769        struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12770
12771        lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12772                        "2843 PCI device Power Management suspend.\n");
12773
12774        /* Bring down the device */
12775        lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12776        lpfc_offline(phba);
12777        kthread_stop(phba->worker_thread);
12778
12779        /* Disable interrupt from device */
12780        lpfc_sli4_disable_intr(phba);
12781        lpfc_sli4_queue_destroy(phba);
12782
12783        /* Save device state to PCI config space */
12784        pci_save_state(pdev);
12785        pci_set_power_state(pdev, PCI_D3hot);
12786
12787        return 0;
12788}
12789
12790/**
12791 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
12792 * @pdev: pointer to PCI device
12793 *
12794 * This routine is called from the kernel's PCI subsystem to support system
12795 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
12796 * this method, it restores the device's PCI config space state and fully
12797 * reinitializes the device and brings it online. Note that as the driver
12798 * implements the minimum PM requirements to a power-aware driver's PM for
12799 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
12800 * to the suspend() method call will be treated as SUSPEND and the driver
12801 * will fully reinitialize its device during resume() method call, the device
12802 * will be set to PCI_D0 directly in PCI config space before restoring the
12803 * state.
12804 *
12805 * Return code
12806 *      0 - driver suspended the device
12807 *      Error otherwise
12808 **/
12809static int
12810lpfc_pci_resume_one_s4(struct pci_dev *pdev)
12811{
12812        struct Scsi_Host *shost = pci_get_drvdata(pdev);
12813        struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12814        uint32_t intr_mode;
12815        int error;
12816
12817        lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12818                        "0292 PCI device Power Management resume.\n");
12819
12820        /* Restore device state from PCI config space */
12821        pci_set_power_state(pdev, PCI_D0);
12822        pci_restore_state(pdev);
12823
12824        /*
12825         * As the new kernel behavior of pci_restore_state() API call clears
12826         * device saved_state flag, need to save the restored state again.
12827         */
12828        pci_save_state(pdev);
12829
12830        if (pdev->is_busmaster)
12831                pci_set_master(pdev);
12832
12833         /* Startup the kernel thread for this host adapter. */
12834        phba->worker_thread = kthread_run(lpfc_do_work, phba,
12835                                        "lpfc_worker_%d", phba->brd_no);
12836        if (IS_ERR(phba->worker_thread)) {
12837                error = PTR_ERR(phba->worker_thread);
12838                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12839                                "0293 PM resume failed to start worker "
12840                                "thread: error=x%x.\n", error);
12841                return error;
12842        }
12843
12844        /* Configure and enable interrupt */
12845        intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
12846        if (intr_mode == LPFC_INTR_ERROR) {
12847                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12848                                "0294 PM resume Failed to enable interrupt\n");
12849                return -EIO;
12850        } else
12851                phba->intr_mode = intr_mode;
12852
12853        /* Restart HBA and bring it online */
12854        lpfc_sli_brdrestart(phba);
12855        lpfc_online(phba);
12856
12857        /* Log the current active interrupt mode */
12858        lpfc_log_intr_mode(phba, phba->intr_mode);
12859
12860        return 0;
12861}
12862
12863/**
12864 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
12865 * @phba: pointer to lpfc hba data structure.
12866 *
12867 * This routine is called to prepare the SLI4 device for PCI slot recover. It
12868 * aborts all the outstanding SCSI I/Os to the pci device.
12869 **/
12870static void
12871lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
12872{
12873        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12874                        "2828 PCI channel I/O abort preparing for recovery\n");
12875        /*
12876         * There may be errored I/Os through HBA, abort all I/Os on txcmplq
12877         * and let the SCSI mid-layer to retry them to recover.
12878         */
12879        lpfc_sli_abort_fcp_rings(phba);
12880}
12881
12882/**
12883 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
12884 * @phba: pointer to lpfc hba data structure.
12885 *
12886 * This routine is called to prepare the SLI4 device for PCI slot reset. It
12887 * disables the device interrupt and pci device, and aborts the internal FCP
12888 * pending I/Os.
12889 **/
12890static void
12891lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
12892{
12893        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12894                        "2826 PCI channel disable preparing for reset\n");
12895
12896        /* Block any management I/Os to the device */
12897        lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
12898
12899        /* Block all SCSI devices' I/Os on the host */
12900        lpfc_scsi_dev_block(phba);
12901
12902        /* Flush all driver's outstanding I/Os as we are to reset */
12903        lpfc_sli_flush_io_rings(phba);
12904
12905        /* stop all timers */
12906        lpfc_stop_hba_timers(phba);
12907
12908        /* Disable interrupt and pci device */
12909        lpfc_sli4_disable_intr(phba);
12910        lpfc_sli4_queue_destroy(phba);
12911        pci_disable_device(phba->pcidev);
12912}
12913
12914/**
12915 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
12916 * @phba: pointer to lpfc hba data structure.
12917 *
12918 * This routine is called to prepare the SLI4 device for PCI slot permanently
12919 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
12920 * pending I/Os.
12921 **/
12922static void
12923lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
12924{
12925        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12926                        "2827 PCI channel permanent disable for failure\n");
12927
12928        /* Block all SCSI devices' I/Os on the host */
12929        lpfc_scsi_dev_block(phba);
12930
12931        /* stop all timers */
12932        lpfc_stop_hba_timers(phba);
12933
12934        /* Clean up all driver's outstanding I/Os */
12935        lpfc_sli_flush_io_rings(phba);
12936}
12937
12938/**
12939 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
12940 * @pdev: pointer to PCI device.
12941 * @state: the current PCI connection state.
12942 *
12943 * This routine is called from the PCI subsystem for error handling to device
12944 * with SLI-4 interface spec. This function is called by the PCI subsystem
12945 * after a PCI bus error affecting this device has been detected. When this
12946 * function is invoked, it will need to stop all the I/Os and interrupt(s)
12947 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
12948 * for the PCI subsystem to perform proper recovery as desired.
12949 *
12950 * Return codes
12951 *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12952 *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12953 **/
12954static pci_ers_result_t
12955lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
12956{
12957        struct Scsi_Host *shost = pci_get_drvdata(pdev);
12958        struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12959
12960        switch (state) {
12961        case pci_channel_io_normal:
12962                /* Non-fatal error, prepare for recovery */
12963                lpfc_sli4_prep_dev_for_recover(phba);
12964                return PCI_ERS_RESULT_CAN_RECOVER;
12965        case pci_channel_io_frozen:
12966                /* Fatal error, prepare for slot reset */
12967                lpfc_sli4_prep_dev_for_reset(phba);
12968                return PCI_ERS_RESULT_NEED_RESET;
12969        case pci_channel_io_perm_failure:
12970                /* Permanent failure, prepare for device down */
12971                lpfc_sli4_prep_dev_for_perm_failure(phba);
12972                return PCI_ERS_RESULT_DISCONNECT;
12973        default:
12974                /* Unknown state, prepare and request slot reset */
12975                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12976                                "2825 Unknown PCI error state: x%x\n", state);
12977                lpfc_sli4_prep_dev_for_reset(phba);
12978                return PCI_ERS_RESULT_NEED_RESET;
12979        }
12980}
12981
12982/**
12983 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
12984 * @pdev: pointer to PCI device.
12985 *
12986 * This routine is called from the PCI subsystem for error handling to device
12987 * with SLI-4 interface spec. It is called after PCI bus has been reset to
12988 * restart the PCI card from scratch, as if from a cold-boot. During the
12989 * PCI subsystem error recovery, after the driver returns
12990 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
12991 * recovery and then call this routine before calling the .resume method to
12992 * recover the device. This function will initialize the HBA device, enable
12993 * the interrupt, but it will just put the HBA to offline state without
12994 * passing any I/O traffic.
12995 *
12996 * Return codes
12997 *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
12998 *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12999 */
13000static pci_ers_result_t
13001lpfc_io_slot_reset_s4(struct pci_dev *pdev)
13002{
13003        struct Scsi_Host *shost = pci_get_drvdata(pdev);
13004        struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13005        struct lpfc_sli *psli = &phba->sli;
13006        uint32_t intr_mode;
13007
13008        dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
13009        if (pci_enable_device_mem(pdev)) {
13010                printk(KERN_ERR "lpfc: Cannot re-enable "
13011                        "PCI device after reset.\n");
13012                return PCI_ERS_RESULT_DISCONNECT;
13013        }
13014
13015        pci_restore_state(pdev);
13016
13017        /*
13018         * As the new kernel behavior of pci_restore_state() API call clears
13019         * device saved_state flag, need to save the restored state again.
13020         */
13021        pci_save_state(pdev);
13022
13023        if (pdev->is_busmaster)
13024                pci_set_master(pdev);
13025
13026        spin_lock_irq(&phba->hbalock);
13027        psli->sli_flag &= ~LPFC_SLI_ACTIVE;
13028        spin_unlock_irq(&phba->hbalock);
13029
13030        /* Configure and enable interrupt */
13031        intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
13032        if (intr_mode == LPFC_INTR_ERROR) {
13033                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13034                                "2824 Cannot re-enable interrupt after "
13035                                "slot reset.\n");
13036                return PCI_ERS_RESULT_DISCONNECT;
13037        } else
13038                phba->intr_mode = intr_mode;
13039
13040        /* Log the current active interrupt mode */
13041        lpfc_log_intr_mode(phba, phba->intr_mode);
13042
13043        return PCI_ERS_RESULT_RECOVERED;
13044}
13045
13046/**
13047 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
13048 * @pdev: pointer to PCI device
13049 *
13050 * This routine is called from the PCI subsystem for error handling to device
13051 * with SLI-4 interface spec. It is called when kernel error recovery tells
13052 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
13053 * error recovery. After this call, traffic can start to flow from this device
13054 * again.
13055 **/
13056static void
13057lpfc_io_resume_s4(struct pci_dev *pdev)
13058{
13059        struct Scsi_Host *shost = pci_get_drvdata(pdev);
13060        struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13061
13062        /*
13063         * In case of slot reset, as function reset is performed through
13064         * mailbox command which needs DMA to be enabled, this operation
13065         * has to be moved to the io resume phase. Taking device offline
13066         * will perform the necessary cleanup.
13067         */
13068        if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
13069                /* Perform device reset */
13070                lpfc_offline_prep(phba, LPFC_MBX_WAIT);
13071                lpfc_offline(phba);
13072                lpfc_sli_brdrestart(phba);
13073                /* Bring the device back online */
13074                lpfc_online(phba);
13075        }
13076}
13077
13078/**
13079 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
13080 * @pdev: pointer to PCI device
13081 * @pid: pointer to PCI device identifier
13082 *
13083 * This routine is to be registered to the kernel's PCI subsystem. When an
13084 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
13085 * at PCI device-specific information of the device and driver to see if the
13086 * driver state that it can support this kind of device. If the match is
13087 * successful, the driver core invokes this routine. This routine dispatches
13088 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
13089 * do all the initialization that it needs to do to handle the HBA device
13090 * properly.
13091 *
13092 * Return code
13093 *      0 - driver can claim the device
13094 *      negative value - driver can not claim the device
13095 **/
13096static int
13097lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
13098{
13099        int rc;
13100        struct lpfc_sli_intf intf;
13101
13102        if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
13103                return -ENODEV;
13104
13105        if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
13106            (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
13107                rc = lpfc_pci_probe_one_s4(pdev, pid);
13108        else
13109                rc = lpfc_pci_probe_one_s3(pdev, pid);
13110
13111        return rc;
13112}
13113
13114/**
13115 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
13116 * @pdev: pointer to PCI device
13117 *
13118 * This routine is to be registered to the kernel's PCI subsystem. When an
13119 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
13120 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
13121 * remove routine, which will perform all the necessary cleanup for the
13122 * device to be removed from the PCI subsystem properly.
13123 **/
13124static void
13125lpfc_pci_remove_one(struct pci_dev *pdev)
13126{
13127        struct Scsi_Host *shost = pci_get_drvdata(pdev);
13128        struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13129
13130        switch (phba->pci_dev_grp) {
13131        case LPFC_PCI_DEV_LP:
13132                lpfc_pci_remove_one_s3(pdev);
13133                break;
13134        case LPFC_PCI_DEV_OC:
13135                lpfc_pci_remove_one_s4(pdev);
13136                break;
13137        default:
13138                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13139                                "1424 Invalid PCI device group: 0x%x\n",
13140                                phba->pci_dev_grp);
13141                break;
13142        }
13143        return;
13144}
13145
13146/**
13147 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
13148 * @pdev: pointer to PCI device
13149 * @msg: power management message
13150 *
13151 * This routine is to be registered to the kernel's PCI subsystem to support
13152 * system Power Management (PM). When PM invokes this method, it dispatches
13153 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
13154 * suspend the device.
13155 *
13156 * Return code
13157 *      0 - driver suspended the device
13158 *      Error otherwise
13159 **/
13160static int
13161lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
13162{
13163        struct Scsi_Host *shost = pci_get_drvdata(pdev);
13164        struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13165        int rc = -ENODEV;
13166
13167        switch (phba->pci_dev_grp) {
13168        case LPFC_PCI_DEV_LP:
13169                rc = lpfc_pci_suspend_one_s3(pdev, msg);
13170                break;
13171        case LPFC_PCI_DEV_OC:
13172                rc = lpfc_pci_suspend_one_s4(pdev, msg);
13173                break;
13174        default:
13175                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13176                                "1425 Invalid PCI device group: 0x%x\n",
13177                                phba->pci_dev_grp);
13178                break;
13179        }
13180        return rc;
13181}
13182
13183/**
13184 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
13185 * @pdev: pointer to PCI device
13186 *
13187 * This routine is to be registered to the kernel's PCI subsystem to support
13188 * system Power Management (PM). When PM invokes this method, it dispatches
13189 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
13190 * resume the device.
13191 *
13192 * Return code
13193 *      0 - driver suspended the device
13194 *      Error otherwise
13195 **/
13196static int
13197lpfc_pci_resume_one(struct pci_dev *pdev)
13198{
13199        struct Scsi_Host *shost = pci_get_drvdata(pdev);
13200        struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13201        int rc = -ENODEV;
13202
13203        switch (phba->pci_dev_grp) {
13204        case LPFC_PCI_DEV_LP:
13205                rc = lpfc_pci_resume_one_s3(pdev);
13206                break;
13207        case LPFC_PCI_DEV_OC:
13208                rc = lpfc_pci_resume_one_s4(pdev);
13209                break;
13210        default:
13211                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13212                                "1426 Invalid PCI device group: 0x%x\n",
13213                                phba->pci_dev_grp);
13214                break;
13215        }
13216        return rc;
13217}
13218
13219/**
13220 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
13221 * @pdev: pointer to PCI device.
13222 * @state: the current PCI connection state.
13223 *
13224 * This routine is registered to the PCI subsystem for error handling. This
13225 * function is called by the PCI subsystem after a PCI bus error affecting
13226 * this device has been detected. When this routine is invoked, it dispatches
13227 * the action to the proper SLI-3 or SLI-4 device error detected handling
13228 * routine, which will perform the proper error detected operation.
13229 *
13230 * Return codes
13231 *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
13232 *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13233 **/
13234static pci_ers_result_t
13235lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
13236{
13237        struct Scsi_Host *shost = pci_get_drvdata(pdev);
13238        struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13239        pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
13240
13241        switch (phba->pci_dev_grp) {
13242        case LPFC_PCI_DEV_LP:
13243                rc = lpfc_io_error_detected_s3(pdev, state);
13244                break;
13245        case LPFC_PCI_DEV_OC:
13246                rc = lpfc_io_error_detected_s4(pdev, state);
13247                break;
13248        default:
13249                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13250                                "1427 Invalid PCI device group: 0x%x\n",
13251                                phba->pci_dev_grp);
13252                break;
13253        }
13254        return rc;
13255}
13256
13257/**
13258 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
13259 * @pdev: pointer to PCI device.
13260 *
13261 * This routine is registered to the PCI subsystem for error handling. This
13262 * function is called after PCI bus has been reset to restart the PCI card
13263 * from scratch, as if from a cold-boot. When this routine is invoked, it
13264 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
13265 * routine, which will perform the proper device reset.
13266 *
13267 * Return codes
13268 *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
13269 *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13270 **/
13271static pci_ers_result_t
13272lpfc_io_slot_reset(struct pci_dev *pdev)
13273{
13274        struct Scsi_Host *shost = pci_get_drvdata(pdev);
13275        struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13276        pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
13277
13278        switch (phba->pci_dev_grp) {
13279        case LPFC_PCI_DEV_LP:
13280                rc = lpfc_io_slot_reset_s3(pdev);
13281                break;
13282        case LPFC_PCI_DEV_OC:
13283                rc = lpfc_io_slot_reset_s4(pdev);
13284                break;
13285        default:
13286                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13287                                "1428 Invalid PCI device group: 0x%x\n",
13288                                phba->pci_dev_grp);
13289                break;
13290        }
13291        return rc;
13292}
13293
13294/**
13295 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
13296 * @pdev: pointer to PCI device
13297 *
13298 * This routine is registered to the PCI subsystem for error handling. It
13299 * is called when kernel error recovery tells the lpfc driver that it is
13300 * OK to resume normal PCI operation after PCI bus error recovery. When
13301 * this routine is invoked, it dispatches the action to the proper SLI-3
13302 * or SLI-4 device io_resume routine, which will resume the device operation.
13303 **/
13304static void
13305lpfc_io_resume(struct pci_dev *pdev)
13306{
13307        struct Scsi_Host *shost = pci_get_drvdata(pdev);
13308        struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13309
13310        switch (phba->pci_dev_grp) {
13311        case LPFC_PCI_DEV_LP:
13312                lpfc_io_resume_s3(pdev);
13313                break;
13314        case LPFC_PCI_DEV_OC:
13315                lpfc_io_resume_s4(pdev);
13316                break;
13317        default:
13318                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13319                                "1429 Invalid PCI device group: 0x%x\n",
13320                                phba->pci_dev_grp);
13321                break;
13322        }
13323        return;
13324}
13325
13326/**
13327 * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
13328 * @phba: pointer to lpfc hba data structure.
13329 *
13330 * This routine checks to see if OAS is supported for this adapter. If
13331 * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
13332 * the enable oas flag is cleared and the pool created for OAS device data
13333 * is destroyed.
13334 *
13335 **/
13336static void
13337lpfc_sli4_oas_verify(struct lpfc_hba *phba)
13338{
13339
13340        if (!phba->cfg_EnableXLane)
13341                return;
13342
13343        if (phba->sli4_hba.pc_sli4_params.oas_supported) {
13344                phba->cfg_fof = 1;
13345        } else {
13346                phba->cfg_fof = 0;
13347                if (phba->device_data_mem_pool)
13348                        mempool_destroy(phba->device_data_mem_pool);
13349                phba->device_data_mem_pool = NULL;
13350        }
13351
13352        return;
13353}
13354
13355/**
13356 * lpfc_sli4_ras_init - Verify RAS-FW log is supported by this adapter
13357 * @phba: pointer to lpfc hba data structure.
13358 *
13359 * This routine checks to see if RAS is supported by the adapter. Check the
13360 * function through which RAS support enablement is to be done.
13361 **/
13362void
13363lpfc_sli4_ras_init(struct lpfc_hba *phba)
13364{
13365        switch (phba->pcidev->device) {
13366        case PCI_DEVICE_ID_LANCER_G6_FC:
13367        case PCI_DEVICE_ID_LANCER_G7_FC:
13368                phba->ras_fwlog.ras_hwsupport = true;
13369                if (phba->cfg_ras_fwlog_func == PCI_FUNC(phba->pcidev->devfn) &&
13370                    phba->cfg_ras_fwlog_buffsize)
13371                        phba->ras_fwlog.ras_enabled = true;
13372                else
13373                        phba->ras_fwlog.ras_enabled = false;
13374                break;
13375        default:
13376                phba->ras_fwlog.ras_hwsupport = false;
13377        }
13378}
13379
13380
13381MODULE_DEVICE_TABLE(pci, lpfc_id_table);
13382
13383static const struct pci_error_handlers lpfc_err_handler = {
13384        .error_detected = lpfc_io_error_detected,
13385        .slot_reset = lpfc_io_slot_reset,
13386        .resume = lpfc_io_resume,
13387};
13388
13389static struct pci_driver lpfc_driver = {
13390        .name           = LPFC_DRIVER_NAME,
13391        .id_table       = lpfc_id_table,
13392        .probe          = lpfc_pci_probe_one,
13393        .remove         = lpfc_pci_remove_one,
13394        .shutdown       = lpfc_pci_remove_one,
13395        .suspend        = lpfc_pci_suspend_one,
13396        .resume         = lpfc_pci_resume_one,
13397        .err_handler    = &lpfc_err_handler,
13398};
13399
13400static const struct file_operations lpfc_mgmt_fop = {
13401        .owner = THIS_MODULE,
13402};
13403
13404static struct miscdevice lpfc_mgmt_dev = {
13405        .minor = MISC_DYNAMIC_MINOR,
13406        .name = "lpfcmgmt",
13407        .fops = &lpfc_mgmt_fop,
13408};
13409
13410/**
13411 * lpfc_init - lpfc module initialization routine
13412 *
13413 * This routine is to be invoked when the lpfc module is loaded into the
13414 * kernel. The special kernel macro module_init() is used to indicate the
13415 * role of this routine to the kernel as lpfc module entry point.
13416 *
13417 * Return codes
13418 *   0 - successful
13419 *   -ENOMEM - FC attach transport failed
13420 *   all others - failed
13421 */
13422static int __init
13423lpfc_init(void)
13424{
13425        int error = 0;
13426
13427        printk(LPFC_MODULE_DESC "\n");
13428        printk(LPFC_COPYRIGHT "\n");
13429
13430        error = misc_register(&lpfc_mgmt_dev);
13431        if (error)
13432                printk(KERN_ERR "Could not register lpfcmgmt device, "
13433                        "misc_register returned with status %d", error);
13434
13435        lpfc_transport_functions.vport_create = lpfc_vport_create;
13436        lpfc_transport_functions.vport_delete = lpfc_vport_delete;
13437        lpfc_transport_template =
13438                                fc_attach_transport(&lpfc_transport_functions);
13439        if (lpfc_transport_template == NULL)
13440                return -ENOMEM;
13441        lpfc_vport_transport_template =
13442                fc_attach_transport(&lpfc_vport_transport_functions);
13443        if (lpfc_vport_transport_template == NULL) {
13444                fc_release_transport(lpfc_transport_template);
13445                return -ENOMEM;
13446        }
13447        lpfc_nvme_cmd_template();
13448        lpfc_nvmet_cmd_template();
13449
13450        /* Initialize in case vector mapping is needed */
13451        lpfc_present_cpu = num_present_cpus();
13452
13453        error = pci_register_driver(&lpfc_driver);
13454        if (error) {
13455                fc_release_transport(lpfc_transport_template);
13456                fc_release_transport(lpfc_vport_transport_template);
13457        }
13458
13459        return error;
13460}
13461
13462/**
13463 * lpfc_exit - lpfc module removal routine
13464 *
13465 * This routine is invoked when the lpfc module is removed from the kernel.
13466 * The special kernel macro module_exit() is used to indicate the role of
13467 * this routine to the kernel as lpfc module exit point.
13468 */
13469static void __exit
13470lpfc_exit(void)
13471{
13472        misc_deregister(&lpfc_mgmt_dev);
13473        pci_unregister_driver(&lpfc_driver);
13474        fc_release_transport(lpfc_transport_template);
13475        fc_release_transport(lpfc_vport_transport_template);
13476        idr_destroy(&lpfc_hba_index);
13477}
13478
13479module_init(lpfc_init);
13480module_exit(lpfc_exit);
13481MODULE_LICENSE("GPL");
13482MODULE_DESCRIPTION(LPFC_MODULE_DESC);
13483MODULE_AUTHOR("Broadcom");
13484MODULE_VERSION("0:" LPFC_DRIVER_VERSION);
13485