linux/drivers/scsi/be2iscsi/be_mgmt.c
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   1/**
   2 * Copyright (C) 2005 - 2016 Broadcom
   3 * All rights reserved.
   4 *
   5 * This program is free software; you can redistribute it and/or
   6 * modify it under the terms of the GNU General Public License version 2
   7 * as published by the Free Software Foundation.  The full GNU General
   8 * Public License is included in this distribution in the file called COPYING.
   9 *
  10 * Written by: Jayamohan Kallickal (jayamohan.kallickal@broadcom.com)
  11 *
  12 * Contact Information:
  13 * linux-drivers@broadcom.com
  14 *
  15 * Emulex
  16 * 3333 Susan Street
  17 * Costa Mesa, CA 92626
  18 */
  19
  20#include <linux/bsg-lib.h>
  21#include <scsi/scsi_transport_iscsi.h>
  22#include <scsi/scsi_bsg_iscsi.h>
  23#include "be_mgmt.h"
  24#include "be_iscsi.h"
  25#include "be_main.h"
  26
  27int beiscsi_modify_eq_delay(struct beiscsi_hba *phba,
  28                            struct be_set_eqd *set_eqd,
  29                            int num)
  30{
  31        struct be_ctrl_info *ctrl = &phba->ctrl;
  32        struct be_mcc_wrb *wrb;
  33        struct be_cmd_req_modify_eq_delay *req;
  34        unsigned int tag;
  35        int i;
  36
  37        mutex_lock(&ctrl->mbox_lock);
  38        wrb = alloc_mcc_wrb(phba, &tag);
  39        if (!wrb) {
  40                mutex_unlock(&ctrl->mbox_lock);
  41                return 0;
  42        }
  43
  44        req = embedded_payload(wrb);
  45        be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
  46        be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
  47                           OPCODE_COMMON_MODIFY_EQ_DELAY, sizeof(*req));
  48
  49        req->num_eq = cpu_to_le32(num);
  50        for (i = 0; i < num; i++) {
  51                req->delay[i].eq_id = cpu_to_le32(set_eqd[i].eq_id);
  52                req->delay[i].phase = 0;
  53                req->delay[i].delay_multiplier =
  54                                cpu_to_le32(set_eqd[i].delay_multiplier);
  55        }
  56
  57        /* ignore the completion of this mbox command */
  58        set_bit(MCC_TAG_STATE_IGNORE, &ctrl->ptag_state[tag].tag_state);
  59        be_mcc_notify(phba, tag);
  60        mutex_unlock(&ctrl->mbox_lock);
  61        return tag;
  62}
  63
  64unsigned int mgmt_vendor_specific_fw_cmd(struct be_ctrl_info *ctrl,
  65                                         struct beiscsi_hba *phba,
  66                                         struct bsg_job *job,
  67                                         struct be_dma_mem *nonemb_cmd)
  68{
  69        struct be_cmd_resp_hdr *resp;
  70        struct be_mcc_wrb *wrb;
  71        struct be_sge *mcc_sge;
  72        unsigned int tag = 0;
  73        struct iscsi_bsg_request *bsg_req = job->request;
  74        struct be_bsg_vendor_cmd *req = nonemb_cmd->va;
  75        unsigned short region, sector_size, sector, offset;
  76
  77        nonemb_cmd->size = job->request_payload.payload_len;
  78        memset(nonemb_cmd->va, 0, nonemb_cmd->size);
  79        resp = nonemb_cmd->va;
  80        region =  bsg_req->rqst_data.h_vendor.vendor_cmd[1];
  81        sector_size =  bsg_req->rqst_data.h_vendor.vendor_cmd[2];
  82        sector =  bsg_req->rqst_data.h_vendor.vendor_cmd[3];
  83        offset =  bsg_req->rqst_data.h_vendor.vendor_cmd[4];
  84        req->region = region;
  85        req->sector = sector;
  86        req->offset = offset;
  87
  88        if (mutex_lock_interruptible(&ctrl->mbox_lock))
  89                return 0;
  90        switch (bsg_req->rqst_data.h_vendor.vendor_cmd[0]) {
  91        case BEISCSI_WRITE_FLASH:
  92                offset = sector * sector_size + offset;
  93                be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
  94                                   OPCODE_COMMON_WRITE_FLASH, sizeof(*req));
  95                sg_copy_to_buffer(job->request_payload.sg_list,
  96                                  job->request_payload.sg_cnt,
  97                                  nonemb_cmd->va + offset, job->request_len);
  98                break;
  99        case BEISCSI_READ_FLASH:
 100                be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
 101                           OPCODE_COMMON_READ_FLASH, sizeof(*req));
 102                break;
 103        default:
 104                beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
 105                            "BG_%d : Unsupported cmd = 0x%x\n\n",
 106                            bsg_req->rqst_data.h_vendor.vendor_cmd[0]);
 107
 108                mutex_unlock(&ctrl->mbox_lock);
 109                return -EPERM;
 110        }
 111
 112        wrb = alloc_mcc_wrb(phba, &tag);
 113        if (!wrb) {
 114                mutex_unlock(&ctrl->mbox_lock);
 115                return 0;
 116        }
 117
 118        mcc_sge = nonembedded_sgl(wrb);
 119        be_wrb_hdr_prepare(wrb, nonemb_cmd->size, false,
 120                           job->request_payload.sg_cnt);
 121        mcc_sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
 122        mcc_sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
 123        mcc_sge->len = cpu_to_le32(nonemb_cmd->size);
 124
 125        be_mcc_notify(phba, tag);
 126
 127        mutex_unlock(&ctrl->mbox_lock);
 128        return tag;
 129}
 130
 131unsigned int  mgmt_invalidate_icds(struct beiscsi_hba *phba,
 132                                struct invalidate_command_table *inv_tbl,
 133                                unsigned int num_invalidate, unsigned int cid,
 134                                struct be_dma_mem *nonemb_cmd)
 135
 136{
 137        struct be_ctrl_info *ctrl = &phba->ctrl;
 138        struct be_mcc_wrb *wrb;
 139        struct be_sge *sge;
 140        struct invalidate_commands_params_in *req;
 141        unsigned int i, tag;
 142
 143        mutex_lock(&ctrl->mbox_lock);
 144        wrb = alloc_mcc_wrb(phba, &tag);
 145        if (!wrb) {
 146                mutex_unlock(&ctrl->mbox_lock);
 147                return 0;
 148        }
 149
 150        req = nonemb_cmd->va;
 151        memset(req, 0, sizeof(*req));
 152        sge = nonembedded_sgl(wrb);
 153
 154        be_wrb_hdr_prepare(wrb, sizeof(*req), false, 1);
 155        be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
 156                        OPCODE_COMMON_ISCSI_ERROR_RECOVERY_INVALIDATE_COMMANDS,
 157                        sizeof(*req));
 158        req->ref_handle = 0;
 159        req->cleanup_type = CMD_ISCSI_COMMAND_INVALIDATE;
 160        for (i = 0; i < num_invalidate; i++) {
 161                req->table[i].icd = inv_tbl->icd;
 162                req->table[i].cid = inv_tbl->cid;
 163                req->icd_count++;
 164                inv_tbl++;
 165        }
 166        sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
 167        sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
 168        sge->len = cpu_to_le32(nonemb_cmd->size);
 169
 170        be_mcc_notify(phba, tag);
 171        mutex_unlock(&ctrl->mbox_lock);
 172        return tag;
 173}
 174
 175unsigned int mgmt_invalidate_connection(struct beiscsi_hba *phba,
 176                                         struct beiscsi_endpoint *beiscsi_ep,
 177                                         unsigned short cid,
 178                                         unsigned short issue_reset,
 179                                         unsigned short savecfg_flag)
 180{
 181        struct be_ctrl_info *ctrl = &phba->ctrl;
 182        struct be_mcc_wrb *wrb;
 183        struct iscsi_invalidate_connection_params_in *req;
 184        unsigned int tag = 0;
 185
 186        mutex_lock(&ctrl->mbox_lock);
 187        wrb = alloc_mcc_wrb(phba, &tag);
 188        if (!wrb) {
 189                mutex_unlock(&ctrl->mbox_lock);
 190                return 0;
 191        }
 192
 193        req = embedded_payload(wrb);
 194        be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
 195        be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
 196                           OPCODE_ISCSI_INI_DRIVER_INVALIDATE_CONNECTION,
 197                           sizeof(*req));
 198        req->session_handle = beiscsi_ep->fw_handle;
 199        req->cid = cid;
 200        if (issue_reset)
 201                req->cleanup_type = CMD_ISCSI_CONNECTION_ISSUE_TCP_RST;
 202        else
 203                req->cleanup_type = CMD_ISCSI_CONNECTION_INVALIDATE;
 204        req->save_cfg = savecfg_flag;
 205        be_mcc_notify(phba, tag);
 206        mutex_unlock(&ctrl->mbox_lock);
 207        return tag;
 208}
 209
 210unsigned int mgmt_upload_connection(struct beiscsi_hba *phba,
 211                                unsigned short cid, unsigned int upload_flag)
 212{
 213        struct be_ctrl_info *ctrl = &phba->ctrl;
 214        struct be_mcc_wrb *wrb;
 215        struct tcp_upload_params_in *req;
 216        unsigned int tag;
 217
 218        mutex_lock(&ctrl->mbox_lock);
 219        wrb = alloc_mcc_wrb(phba, &tag);
 220        if (!wrb) {
 221                mutex_unlock(&ctrl->mbox_lock);
 222                return 0;
 223        }
 224
 225        req = embedded_payload(wrb);
 226        be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
 227        be_cmd_hdr_prepare(&req->hdr, CMD_COMMON_TCP_UPLOAD,
 228                           OPCODE_COMMON_TCP_UPLOAD, sizeof(*req));
 229        req->id = (unsigned short)cid;
 230        req->upload_type = (unsigned char)upload_flag;
 231        be_mcc_notify(phba, tag);
 232        mutex_unlock(&ctrl->mbox_lock);
 233        return tag;
 234}
 235
 236/**
 237 * mgmt_open_connection()- Establish a TCP CXN
 238 * @dst_addr: Destination Address
 239 * @beiscsi_ep: ptr to device endpoint struct
 240 * @nonemb_cmd: ptr to memory allocated for command
 241 *
 242 * return
 243 *      Success: Tag number of the MBX Command issued
 244 *      Failure: Error code
 245 **/
 246int mgmt_open_connection(struct beiscsi_hba *phba,
 247                         struct sockaddr *dst_addr,
 248                         struct beiscsi_endpoint *beiscsi_ep,
 249                         struct be_dma_mem *nonemb_cmd)
 250{
 251        struct hwi_controller *phwi_ctrlr;
 252        struct hwi_context_memory *phwi_context;
 253        struct sockaddr_in *daddr_in = (struct sockaddr_in *)dst_addr;
 254        struct sockaddr_in6 *daddr_in6 = (struct sockaddr_in6 *)dst_addr;
 255        struct be_ctrl_info *ctrl = &phba->ctrl;
 256        struct be_mcc_wrb *wrb;
 257        struct tcp_connect_and_offload_in_v1 *req;
 258        unsigned short def_hdr_id;
 259        unsigned short def_data_id;
 260        struct phys_addr template_address = { 0, 0 };
 261        struct phys_addr *ptemplate_address;
 262        unsigned int tag = 0;
 263        unsigned int i, ulp_num;
 264        unsigned short cid = beiscsi_ep->ep_cid;
 265        struct be_sge *sge;
 266
 267        if (dst_addr->sa_family != PF_INET && dst_addr->sa_family != PF_INET6) {
 268                beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
 269                            "BG_%d : unknown addr family %d\n",
 270                            dst_addr->sa_family);
 271                return -EINVAL;
 272        }
 273
 274        phwi_ctrlr = phba->phwi_ctrlr;
 275        phwi_context = phwi_ctrlr->phwi_ctxt;
 276
 277        ulp_num = phwi_ctrlr->wrb_context[BE_GET_CRI_FROM_CID(cid)].ulp_num;
 278
 279        def_hdr_id = (unsigned short)HWI_GET_DEF_HDRQ_ID(phba, ulp_num);
 280        def_data_id = (unsigned short)HWI_GET_DEF_BUFQ_ID(phba, ulp_num);
 281
 282        ptemplate_address = &template_address;
 283        ISCSI_GET_PDU_TEMPLATE_ADDRESS(phba, ptemplate_address);
 284        if (mutex_lock_interruptible(&ctrl->mbox_lock))
 285                return 0;
 286        wrb = alloc_mcc_wrb(phba, &tag);
 287        if (!wrb) {
 288                mutex_unlock(&ctrl->mbox_lock);
 289                return 0;
 290        }
 291
 292        sge = nonembedded_sgl(wrb);
 293        req = nonemb_cmd->va;
 294        memset(req, 0, sizeof(*req));
 295
 296        be_wrb_hdr_prepare(wrb, nonemb_cmd->size, false, 1);
 297        be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
 298                           OPCODE_COMMON_ISCSI_TCP_CONNECT_AND_OFFLOAD,
 299                           nonemb_cmd->size);
 300        if (dst_addr->sa_family == PF_INET) {
 301                __be32 s_addr = daddr_in->sin_addr.s_addr;
 302                req->ip_address.ip_type = BEISCSI_IP_TYPE_V4;
 303                req->ip_address.addr[0] = s_addr & 0x000000ff;
 304                req->ip_address.addr[1] = (s_addr & 0x0000ff00) >> 8;
 305                req->ip_address.addr[2] = (s_addr & 0x00ff0000) >> 16;
 306                req->ip_address.addr[3] = (s_addr & 0xff000000) >> 24;
 307                req->tcp_port = ntohs(daddr_in->sin_port);
 308                beiscsi_ep->dst_addr = daddr_in->sin_addr.s_addr;
 309                beiscsi_ep->dst_tcpport = ntohs(daddr_in->sin_port);
 310                beiscsi_ep->ip_type = BEISCSI_IP_TYPE_V4;
 311        } else {
 312                /* else its PF_INET6 family */
 313                req->ip_address.ip_type = BEISCSI_IP_TYPE_V6;
 314                memcpy(&req->ip_address.addr,
 315                       &daddr_in6->sin6_addr.in6_u.u6_addr8, 16);
 316                req->tcp_port = ntohs(daddr_in6->sin6_port);
 317                beiscsi_ep->dst_tcpport = ntohs(daddr_in6->sin6_port);
 318                memcpy(&beiscsi_ep->dst6_addr,
 319                       &daddr_in6->sin6_addr.in6_u.u6_addr8, 16);
 320                beiscsi_ep->ip_type = BEISCSI_IP_TYPE_V6;
 321        }
 322        req->cid = cid;
 323        i = phba->nxt_cqid++;
 324        if (phba->nxt_cqid == phba->num_cpus)
 325                phba->nxt_cqid = 0;
 326        req->cq_id = phwi_context->be_cq[i].id;
 327        beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
 328                    "BG_%d : i=%d cq_id=%d\n", i, req->cq_id);
 329        req->defq_id = def_hdr_id;
 330        req->hdr_ring_id = def_hdr_id;
 331        req->data_ring_id = def_data_id;
 332        req->do_offload = 1;
 333        req->dataout_template_pa.lo = ptemplate_address->lo;
 334        req->dataout_template_pa.hi = ptemplate_address->hi;
 335        sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
 336        sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
 337        sge->len = cpu_to_le32(nonemb_cmd->size);
 338
 339        if (!is_chip_be2_be3r(phba)) {
 340                req->hdr.version = MBX_CMD_VER1;
 341                req->tcp_window_size = 0x8000;
 342                req->tcp_window_scale_count = 2;
 343        }
 344
 345        be_mcc_notify(phba, tag);
 346        mutex_unlock(&ctrl->mbox_lock);
 347        return tag;
 348}
 349
 350/*
 351 * mgmt_exec_nonemb_cmd()- Execute Non Embedded MBX Cmd
 352 * @phba: Driver priv structure
 353 * @nonemb_cmd: Address of the MBX command issued
 354 * @resp_buf: Buffer to copy the MBX cmd response
 355 * @resp_buf_len: respone lenght to be copied
 356 *
 357 **/
 358static int mgmt_exec_nonemb_cmd(struct beiscsi_hba *phba,
 359                                struct be_dma_mem *nonemb_cmd, void *resp_buf,
 360                                int resp_buf_len)
 361{
 362        struct be_ctrl_info *ctrl = &phba->ctrl;
 363        struct be_mcc_wrb *wrb;
 364        struct be_sge *sge;
 365        unsigned int tag;
 366        int rc = 0;
 367
 368        mutex_lock(&ctrl->mbox_lock);
 369        wrb = alloc_mcc_wrb(phba, &tag);
 370        if (!wrb) {
 371                mutex_unlock(&ctrl->mbox_lock);
 372                rc = -ENOMEM;
 373                goto free_cmd;
 374        }
 375
 376        sge = nonembedded_sgl(wrb);
 377        be_wrb_hdr_prepare(wrb, nonemb_cmd->size, false, 1);
 378        sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
 379        sge->pa_lo = cpu_to_le32(lower_32_bits(nonemb_cmd->dma));
 380        sge->len = cpu_to_le32(nonemb_cmd->size);
 381
 382        be_mcc_notify(phba, tag);
 383        mutex_unlock(&ctrl->mbox_lock);
 384
 385        rc = beiscsi_mccq_compl_wait(phba, tag, NULL, nonemb_cmd);
 386
 387        if (resp_buf)
 388                memcpy(resp_buf, nonemb_cmd->va, resp_buf_len);
 389
 390        if (rc) {
 391                /* Check if the MBX Cmd needs to be re-issued */
 392                if (rc == -EAGAIN)
 393                        return rc;
 394
 395                beiscsi_log(phba, KERN_WARNING,
 396                            BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
 397                            "BG_%d : mgmt_exec_nonemb_cmd Failed status\n");
 398
 399                if (rc != -EBUSY)
 400                        goto free_cmd;
 401                else
 402                        return rc;
 403        }
 404free_cmd:
 405        pci_free_consistent(ctrl->pdev, nonemb_cmd->size,
 406                            nonemb_cmd->va, nonemb_cmd->dma);
 407        return rc;
 408}
 409
 410static int mgmt_alloc_cmd_data(struct beiscsi_hba *phba, struct be_dma_mem *cmd,
 411                               int iscsi_cmd, int size)
 412{
 413        cmd->va = pci_zalloc_consistent(phba->ctrl.pdev, size, &cmd->dma);
 414        if (!cmd->va) {
 415                beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
 416                            "BG_%d : Failed to allocate memory for if info\n");
 417                return -ENOMEM;
 418        }
 419        cmd->size = size;
 420        be_cmd_hdr_prepare(cmd->va, CMD_SUBSYSTEM_ISCSI, iscsi_cmd, size);
 421        beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
 422                    "BG_%d : subsystem iSCSI cmd %d size %d\n",
 423                    iscsi_cmd, size);
 424        return 0;
 425}
 426
 427unsigned int beiscsi_if_get_handle(struct beiscsi_hba *phba)
 428{
 429        struct be_ctrl_info *ctrl = &phba->ctrl;
 430        struct be_mcc_wrb *wrb;
 431        struct be_cmd_get_all_if_id_req *req;
 432        struct be_cmd_get_all_if_id_req *pbe_allid;
 433        unsigned int tag;
 434        int status = 0;
 435
 436        if (mutex_lock_interruptible(&ctrl->mbox_lock))
 437                return -EINTR;
 438        wrb = alloc_mcc_wrb(phba, &tag);
 439        if (!wrb) {
 440                mutex_unlock(&ctrl->mbox_lock);
 441                return -ENOMEM;
 442        }
 443
 444        req = embedded_payload(wrb);
 445        be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
 446        be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
 447                           OPCODE_COMMON_ISCSI_NTWK_GET_ALL_IF_ID,
 448                           sizeof(*req));
 449        be_mcc_notify(phba, tag);
 450        mutex_unlock(&ctrl->mbox_lock);
 451
 452        status = beiscsi_mccq_compl_wait(phba, tag, &wrb, NULL);
 453        if (status) {
 454                beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
 455                            "BG_%d : %s failed: %d\n", __func__, status);
 456                return -EBUSY;
 457        }
 458
 459        pbe_allid = embedded_payload(wrb);
 460        /* we now support only one interface per function */
 461        phba->interface_handle = pbe_allid->if_hndl_list[0];
 462
 463        return status;
 464}
 465
 466static inline bool beiscsi_if_zero_ip(u8 *ip, u32 ip_type)
 467{
 468        u32 len;
 469
 470        len = (ip_type < BEISCSI_IP_TYPE_V6) ? IP_V4_LEN : IP_V6_LEN;
 471        while (len && !ip[len - 1])
 472                len--;
 473        return (len == 0);
 474}
 475
 476static int beiscsi_if_mod_gw(struct beiscsi_hba *phba,
 477                             u32 action, u32 ip_type, u8 *gw)
 478{
 479        struct be_cmd_set_def_gateway_req *req;
 480        struct be_dma_mem nonemb_cmd;
 481        int rt_val;
 482
 483        rt_val = mgmt_alloc_cmd_data(phba, &nonemb_cmd,
 484                                OPCODE_COMMON_ISCSI_NTWK_MODIFY_DEFAULT_GATEWAY,
 485                                sizeof(*req));
 486        if (rt_val)
 487                return rt_val;
 488
 489        req = nonemb_cmd.va;
 490        req->action = action;
 491        req->ip_addr.ip_type = ip_type;
 492        memcpy(req->ip_addr.addr, gw,
 493               (ip_type < BEISCSI_IP_TYPE_V6) ? IP_V4_LEN : IP_V6_LEN);
 494        return mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, NULL, 0);
 495}
 496
 497int beiscsi_if_set_gw(struct beiscsi_hba *phba, u32 ip_type, u8 *gw)
 498{
 499        struct be_cmd_get_def_gateway_resp gw_resp;
 500        int rt_val;
 501
 502        memset(&gw_resp, 0, sizeof(gw_resp));
 503        rt_val = beiscsi_if_get_gw(phba, ip_type, &gw_resp);
 504        if (rt_val) {
 505                beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
 506                            "BG_%d : Failed to Get Gateway Addr\n");
 507                return rt_val;
 508        }
 509
 510        if (!beiscsi_if_zero_ip(gw_resp.ip_addr.addr, ip_type)) {
 511                rt_val = beiscsi_if_mod_gw(phba, IP_ACTION_DEL, ip_type,
 512                                           gw_resp.ip_addr.addr);
 513                if (rt_val) {
 514                        beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
 515                                    "BG_%d : Failed to clear Gateway Addr Set\n");
 516                        return rt_val;
 517                }
 518        }
 519
 520        rt_val = beiscsi_if_mod_gw(phba, IP_ACTION_ADD, ip_type, gw);
 521        if (rt_val)
 522                beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
 523                            "BG_%d : Failed to Set Gateway Addr\n");
 524
 525        return rt_val;
 526}
 527
 528int beiscsi_if_get_gw(struct beiscsi_hba *phba, u32 ip_type,
 529                      struct be_cmd_get_def_gateway_resp *resp)
 530{
 531        struct be_cmd_get_def_gateway_req *req;
 532        struct be_dma_mem nonemb_cmd;
 533        int rc;
 534
 535        rc = mgmt_alloc_cmd_data(phba, &nonemb_cmd,
 536                                 OPCODE_COMMON_ISCSI_NTWK_GET_DEFAULT_GATEWAY,
 537                                 sizeof(*resp));
 538        if (rc)
 539                return rc;
 540
 541        req = nonemb_cmd.va;
 542        req->ip_type = ip_type;
 543
 544        return mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, resp,
 545                                    sizeof(*resp));
 546}
 547
 548static int
 549beiscsi_if_clr_ip(struct beiscsi_hba *phba,
 550                  struct be_cmd_get_if_info_resp *if_info)
 551{
 552        struct be_cmd_set_ip_addr_req *req;
 553        struct be_dma_mem nonemb_cmd;
 554        int rc;
 555
 556        rc = mgmt_alloc_cmd_data(phba, &nonemb_cmd,
 557                                 OPCODE_COMMON_ISCSI_NTWK_MODIFY_IP_ADDR,
 558                                 sizeof(*req));
 559        if (rc)
 560                return rc;
 561
 562        req = nonemb_cmd.va;
 563        req->ip_params.record_entry_count = 1;
 564        req->ip_params.ip_record.action = IP_ACTION_DEL;
 565        req->ip_params.ip_record.interface_hndl =
 566                phba->interface_handle;
 567        req->ip_params.ip_record.ip_addr.size_of_structure =
 568                sizeof(struct be_ip_addr_subnet_format);
 569        req->ip_params.ip_record.ip_addr.ip_type = if_info->ip_addr.ip_type;
 570        memcpy(req->ip_params.ip_record.ip_addr.addr,
 571               if_info->ip_addr.addr,
 572               sizeof(if_info->ip_addr.addr));
 573        memcpy(req->ip_params.ip_record.ip_addr.subnet_mask,
 574               if_info->ip_addr.subnet_mask,
 575               sizeof(if_info->ip_addr.subnet_mask));
 576        rc = mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, NULL, 0);
 577        if (rc < 0 || req->ip_params.ip_record.status) {
 578                beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
 579                            "BG_%d : failed to clear IP: rc %d status %d\n",
 580                            rc, req->ip_params.ip_record.status);
 581        }
 582        return rc;
 583}
 584
 585static int
 586beiscsi_if_set_ip(struct beiscsi_hba *phba, u8 *ip,
 587                  u8 *subnet, u32 ip_type)
 588{
 589        struct be_cmd_set_ip_addr_req *req;
 590        struct be_dma_mem nonemb_cmd;
 591        uint32_t ip_len;
 592        int rc;
 593
 594        rc = mgmt_alloc_cmd_data(phba, &nonemb_cmd,
 595                                 OPCODE_COMMON_ISCSI_NTWK_MODIFY_IP_ADDR,
 596                                 sizeof(*req));
 597        if (rc)
 598                return rc;
 599
 600        req = nonemb_cmd.va;
 601        req->ip_params.record_entry_count = 1;
 602        req->ip_params.ip_record.action = IP_ACTION_ADD;
 603        req->ip_params.ip_record.interface_hndl =
 604                phba->interface_handle;
 605        req->ip_params.ip_record.ip_addr.size_of_structure =
 606                sizeof(struct be_ip_addr_subnet_format);
 607        req->ip_params.ip_record.ip_addr.ip_type = ip_type;
 608        ip_len = (ip_type < BEISCSI_IP_TYPE_V6) ? IP_V4_LEN : IP_V6_LEN;
 609        memcpy(req->ip_params.ip_record.ip_addr.addr, ip, ip_len);
 610        if (subnet)
 611                memcpy(req->ip_params.ip_record.ip_addr.subnet_mask,
 612                       subnet, ip_len);
 613
 614        rc = mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, NULL, 0);
 615        /**
 616         * In some cases, host needs to look into individual record status
 617         * even though FW reported success for that IOCTL.
 618         */
 619        if (rc < 0 || req->ip_params.ip_record.status) {
 620                __beiscsi_log(phba, KERN_ERR,
 621                            "BG_%d : failed to set IP: rc %d status %d\n",
 622                            rc, req->ip_params.ip_record.status);
 623                if (req->ip_params.ip_record.status)
 624                        rc = -EINVAL;
 625        }
 626        return rc;
 627}
 628
 629int beiscsi_if_en_static(struct beiscsi_hba *phba, u32 ip_type,
 630                         u8 *ip, u8 *subnet)
 631{
 632        struct be_cmd_get_if_info_resp *if_info;
 633        struct be_cmd_rel_dhcp_req *reldhcp;
 634        struct be_dma_mem nonemb_cmd;
 635        int rc;
 636
 637        rc = beiscsi_if_get_info(phba, ip_type, &if_info);
 638        if (rc)
 639                return rc;
 640
 641        if (if_info->dhcp_state) {
 642                rc = mgmt_alloc_cmd_data(phba, &nonemb_cmd,
 643                                OPCODE_COMMON_ISCSI_NTWK_REL_STATELESS_IP_ADDR,
 644                                sizeof(*reldhcp));
 645                if (rc)
 646                        goto exit;
 647
 648                reldhcp = nonemb_cmd.va;
 649                reldhcp->interface_hndl = phba->interface_handle;
 650                reldhcp->ip_type = ip_type;
 651                rc = mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, NULL, 0);
 652                if (rc < 0) {
 653                        beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
 654                                    "BG_%d : failed to release existing DHCP: %d\n",
 655                                    rc);
 656                        goto exit;
 657                }
 658        }
 659
 660        /* first delete any IP set */
 661        if (!beiscsi_if_zero_ip(if_info->ip_addr.addr, ip_type)) {
 662                rc = beiscsi_if_clr_ip(phba, if_info);
 663                if (rc)
 664                        goto exit;
 665        }
 666
 667        /* if ip == NULL then this is called just to release DHCP IP */
 668        if (ip)
 669                rc = beiscsi_if_set_ip(phba, ip, subnet, ip_type);
 670exit:
 671        kfree(if_info);
 672        return rc;
 673}
 674
 675int beiscsi_if_en_dhcp(struct beiscsi_hba *phba, u32 ip_type)
 676{
 677        struct be_cmd_get_def_gateway_resp gw_resp;
 678        struct be_cmd_get_if_info_resp *if_info;
 679        struct be_cmd_set_dhcp_req *dhcpreq;
 680        struct be_dma_mem nonemb_cmd;
 681        u8 *gw;
 682        int rc;
 683
 684        rc = beiscsi_if_get_info(phba, ip_type, &if_info);
 685        if (rc)
 686                return rc;
 687
 688        if (if_info->dhcp_state) {
 689                beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
 690                                "BG_%d : DHCP Already Enabled\n");
 691                goto exit;
 692        }
 693
 694        /* first delete any IP set */
 695        if (!beiscsi_if_zero_ip(if_info->ip_addr.addr, ip_type)) {
 696                rc = beiscsi_if_clr_ip(phba, if_info);
 697                if (rc)
 698                        goto exit;
 699        }
 700
 701        /* delete gateway settings if mode change is to DHCP */
 702        memset(&gw_resp, 0, sizeof(gw_resp));
 703        /* use ip_type provided in if_info */
 704        rc = beiscsi_if_get_gw(phba, if_info->ip_addr.ip_type, &gw_resp);
 705        if (rc) {
 706                beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
 707                            "BG_%d : Failed to Get Gateway Addr\n");
 708                goto exit;
 709        }
 710        gw = (u8 *)&gw_resp.ip_addr.addr;
 711        if (!beiscsi_if_zero_ip(gw, if_info->ip_addr.ip_type)) {
 712                rc = beiscsi_if_mod_gw(phba, IP_ACTION_DEL,
 713                                       if_info->ip_addr.ip_type, gw);
 714                if (rc) {
 715                        beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
 716                                    "BG_%d : Failed to clear Gateway Addr Set\n");
 717                        goto exit;
 718                }
 719        }
 720
 721        rc = mgmt_alloc_cmd_data(phba, &nonemb_cmd,
 722                        OPCODE_COMMON_ISCSI_NTWK_CONFIG_STATELESS_IP_ADDR,
 723                        sizeof(*dhcpreq));
 724        if (rc)
 725                goto exit;
 726
 727        dhcpreq = nonemb_cmd.va;
 728        dhcpreq->flags = 1; /* 1 - blocking; 0 - non-blocking */
 729        dhcpreq->retry_count = 1;
 730        dhcpreq->interface_hndl = phba->interface_handle;
 731        dhcpreq->ip_type = ip_type;
 732        rc = mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, NULL, 0);
 733
 734exit:
 735        kfree(if_info);
 736        return rc;
 737}
 738
 739/**
 740 * beiscsi_if_set_vlan()- Issue and wait for CMD completion
 741 * @phba: device private structure instance
 742 * @vlan_tag: VLAN tag
 743 *
 744 * Issue the MBX Cmd and wait for the completion of the
 745 * command.
 746 *
 747 * returns
 748 *      Success: 0
 749 *      Failure: Non-Xero Value
 750 **/
 751int beiscsi_if_set_vlan(struct beiscsi_hba *phba, uint16_t vlan_tag)
 752{
 753        int rc;
 754        unsigned int tag;
 755
 756        tag = be_cmd_set_vlan(phba, vlan_tag);
 757        if (!tag) {
 758                beiscsi_log(phba, KERN_ERR,
 759                            (BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX),
 760                            "BG_%d : VLAN Setting Failed\n");
 761                return -EBUSY;
 762        }
 763
 764        rc = beiscsi_mccq_compl_wait(phba, tag, NULL, NULL);
 765        if (rc) {
 766                beiscsi_log(phba, KERN_ERR,
 767                            (BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX),
 768                            "BS_%d : VLAN MBX Cmd Failed\n");
 769                return rc;
 770        }
 771        return rc;
 772}
 773
 774
 775int beiscsi_if_get_info(struct beiscsi_hba *phba, int ip_type,
 776                        struct be_cmd_get_if_info_resp **if_info)
 777{
 778        struct be_cmd_get_if_info_req *req;
 779        struct be_dma_mem nonemb_cmd;
 780        uint32_t ioctl_size = sizeof(struct be_cmd_get_if_info_resp);
 781        int rc;
 782
 783        rc = beiscsi_if_get_handle(phba);
 784        if (rc)
 785                return rc;
 786
 787        do {
 788                rc = mgmt_alloc_cmd_data(phba, &nonemb_cmd,
 789                                         OPCODE_COMMON_ISCSI_NTWK_GET_IF_INFO,
 790                                         ioctl_size);
 791                if (rc)
 792                        return rc;
 793
 794                req = nonemb_cmd.va;
 795                req->interface_hndl = phba->interface_handle;
 796                req->ip_type = ip_type;
 797
 798                /* Allocate memory for if_info */
 799                *if_info = kzalloc(ioctl_size, GFP_KERNEL);
 800                if (!*if_info) {
 801                        beiscsi_log(phba, KERN_ERR,
 802                                    BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
 803                                    "BG_%d : Memory Allocation Failure\n");
 804
 805                                /* Free the DMA memory for the IOCTL issuing */
 806                                pci_free_consistent(phba->ctrl.pdev,
 807                                                    nonemb_cmd.size,
 808                                                    nonemb_cmd.va,
 809                                                    nonemb_cmd.dma);
 810                                return -ENOMEM;
 811                }
 812
 813                rc =  mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, *if_info,
 814                                           ioctl_size);
 815
 816                /* Check if the error is because of Insufficent_Buffer */
 817                if (rc == -EAGAIN) {
 818
 819                        /* Get the new memory size */
 820                        ioctl_size = ((struct be_cmd_resp_hdr *)
 821                                      nonemb_cmd.va)->actual_resp_len;
 822                        ioctl_size += sizeof(struct be_cmd_req_hdr);
 823
 824                        /* Free the previous allocated DMA memory */
 825                        pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
 826                                            nonemb_cmd.va,
 827                                            nonemb_cmd.dma);
 828
 829                        /* Free the virtual memory */
 830                        kfree(*if_info);
 831                } else
 832                        break;
 833        } while (true);
 834        return rc;
 835}
 836
 837int mgmt_get_nic_conf(struct beiscsi_hba *phba,
 838                      struct be_cmd_get_nic_conf_resp *nic)
 839{
 840        struct be_dma_mem nonemb_cmd;
 841        int rc;
 842
 843        rc = mgmt_alloc_cmd_data(phba, &nonemb_cmd,
 844                                 OPCODE_COMMON_ISCSI_NTWK_GET_NIC_CONFIG,
 845                                 sizeof(*nic));
 846        if (rc)
 847                return rc;
 848
 849        return mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, nic, sizeof(*nic));
 850}
 851
 852
 853
 854unsigned int be_cmd_get_initname(struct beiscsi_hba *phba)
 855{
 856        unsigned int tag;
 857        struct be_mcc_wrb *wrb;
 858        struct be_cmd_hba_name *req;
 859        struct be_ctrl_info *ctrl = &phba->ctrl;
 860
 861        if (mutex_lock_interruptible(&ctrl->mbox_lock))
 862                return 0;
 863        wrb = alloc_mcc_wrb(phba, &tag);
 864        if (!wrb) {
 865                mutex_unlock(&ctrl->mbox_lock);
 866                return 0;
 867        }
 868
 869        req = embedded_payload(wrb);
 870        be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
 871        be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
 872                        OPCODE_ISCSI_INI_CFG_GET_HBA_NAME,
 873                        sizeof(*req));
 874
 875        be_mcc_notify(phba, tag);
 876        mutex_unlock(&ctrl->mbox_lock);
 877        return tag;
 878}
 879
 880static void beiscsi_boot_process_compl(struct beiscsi_hba *phba,
 881                                       unsigned int tag)
 882{
 883        struct be_cmd_get_boot_target_resp *boot_resp;
 884        struct be_cmd_resp_logout_fw_sess *logo_resp;
 885        struct be_cmd_get_session_resp *sess_resp;
 886        struct be_mcc_wrb *wrb;
 887        struct boot_struct *bs;
 888        int boot_work, status;
 889
 890        if (!test_bit(BEISCSI_HBA_BOOT_WORK, &phba->state)) {
 891                __beiscsi_log(phba, KERN_ERR,
 892                              "BG_%d : %s no boot work %lx\n",
 893                              __func__, phba->state);
 894                return;
 895        }
 896
 897        if (phba->boot_struct.tag != tag) {
 898                __beiscsi_log(phba, KERN_ERR,
 899                              "BG_%d : %s tag mismatch %d:%d\n",
 900                              __func__, tag, phba->boot_struct.tag);
 901                return;
 902        }
 903        bs = &phba->boot_struct;
 904        boot_work = 1;
 905        status = 0;
 906        switch (bs->action) {
 907        case BEISCSI_BOOT_REOPEN_SESS:
 908                status = __beiscsi_mcc_compl_status(phba, tag, NULL, NULL);
 909                if (!status)
 910                        bs->action = BEISCSI_BOOT_GET_SHANDLE;
 911                else
 912                        bs->retry--;
 913                break;
 914        case BEISCSI_BOOT_GET_SHANDLE:
 915                status = __beiscsi_mcc_compl_status(phba, tag, &wrb, NULL);
 916                if (!status) {
 917                        boot_resp = embedded_payload(wrb);
 918                        bs->s_handle = boot_resp->boot_session_handle;
 919                }
 920                if (bs->s_handle == BE_BOOT_INVALID_SHANDLE) {
 921                        bs->action = BEISCSI_BOOT_REOPEN_SESS;
 922                        bs->retry--;
 923                } else {
 924                        bs->action = BEISCSI_BOOT_GET_SINFO;
 925                }
 926                break;
 927        case BEISCSI_BOOT_GET_SINFO:
 928                status = __beiscsi_mcc_compl_status(phba, tag, NULL,
 929                                                    &bs->nonemb_cmd);
 930                if (!status) {
 931                        sess_resp = bs->nonemb_cmd.va;
 932                        memcpy(&bs->boot_sess, &sess_resp->session_info,
 933                               sizeof(struct mgmt_session_info));
 934                        bs->action = BEISCSI_BOOT_LOGOUT_SESS;
 935                } else {
 936                        __beiscsi_log(phba, KERN_ERR,
 937                                      "BG_%d : get boot session info error : 0x%x\n",
 938                                      status);
 939                        boot_work = 0;
 940                }
 941                pci_free_consistent(phba->ctrl.pdev, bs->nonemb_cmd.size,
 942                                    bs->nonemb_cmd.va, bs->nonemb_cmd.dma);
 943                bs->nonemb_cmd.va = NULL;
 944                break;
 945        case BEISCSI_BOOT_LOGOUT_SESS:
 946                status = __beiscsi_mcc_compl_status(phba, tag, &wrb, NULL);
 947                if (!status) {
 948                        logo_resp = embedded_payload(wrb);
 949                        if (logo_resp->session_status != BE_SESS_STATUS_CLOSE) {
 950                                __beiscsi_log(phba, KERN_ERR,
 951                                              "BG_%d : FW boot session logout error : 0x%x\n",
 952                                              logo_resp->session_status);
 953                        }
 954                }
 955                /* continue to create boot_kset even if logout failed? */
 956                bs->action = BEISCSI_BOOT_CREATE_KSET;
 957                break;
 958        default:
 959                break;
 960        }
 961
 962        /* clear the tag so no other completion matches this tag */
 963        bs->tag = 0;
 964        if (!bs->retry) {
 965                boot_work = 0;
 966                __beiscsi_log(phba, KERN_ERR,
 967                              "BG_%d : failed to setup boot target: status %d action %d\n",
 968                              status, bs->action);
 969        }
 970        if (!boot_work) {
 971                /* wait for next event to start boot_work */
 972                clear_bit(BEISCSI_HBA_BOOT_WORK, &phba->state);
 973                return;
 974        }
 975        schedule_work(&phba->boot_work);
 976}
 977
 978/**
 979 * beiscsi_boot_logout_sess()- Logout from boot FW session
 980 * @phba: Device priv structure instance
 981 *
 982 * return
 983 *      the TAG used for MBOX Command
 984 *
 985 */
 986unsigned int beiscsi_boot_logout_sess(struct beiscsi_hba *phba)
 987{
 988        struct be_ctrl_info *ctrl = &phba->ctrl;
 989        struct be_mcc_wrb *wrb;
 990        struct be_cmd_req_logout_fw_sess *req;
 991        unsigned int tag;
 992
 993        mutex_lock(&ctrl->mbox_lock);
 994        wrb = alloc_mcc_wrb(phba, &tag);
 995        if (!wrb) {
 996                mutex_unlock(&ctrl->mbox_lock);
 997                return 0;
 998        }
 999
1000        req = embedded_payload(wrb);
1001        be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
1002        be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
1003                           OPCODE_ISCSI_INI_SESSION_LOGOUT_TARGET,
1004                           sizeof(struct be_cmd_req_logout_fw_sess));
1005        /* Use the session handle copied into boot_sess */
1006        req->session_handle = phba->boot_struct.boot_sess.session_handle;
1007
1008        phba->boot_struct.tag = tag;
1009        set_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state);
1010        ctrl->ptag_state[tag].cbfn = beiscsi_boot_process_compl;
1011
1012        be_mcc_notify(phba, tag);
1013        mutex_unlock(&ctrl->mbox_lock);
1014
1015        return tag;
1016}
1017/**
1018 * beiscsi_boot_reopen_sess()- Reopen boot session
1019 * @phba: Device priv structure instance
1020 *
1021 * return
1022 *      the TAG used for MBOX Command
1023 *
1024 **/
1025unsigned int beiscsi_boot_reopen_sess(struct beiscsi_hba *phba)
1026{
1027        struct be_ctrl_info *ctrl = &phba->ctrl;
1028        struct be_mcc_wrb *wrb;
1029        struct be_cmd_reopen_session_req *req;
1030        unsigned int tag;
1031
1032        mutex_lock(&ctrl->mbox_lock);
1033        wrb = alloc_mcc_wrb(phba, &tag);
1034        if (!wrb) {
1035                mutex_unlock(&ctrl->mbox_lock);
1036                return 0;
1037        }
1038
1039        req = embedded_payload(wrb);
1040        be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
1041        be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
1042                           OPCODE_ISCSI_INI_DRIVER_REOPEN_ALL_SESSIONS,
1043                           sizeof(struct be_cmd_reopen_session_resp));
1044        req->reopen_type = BE_REOPEN_BOOT_SESSIONS;
1045        req->session_handle = BE_BOOT_INVALID_SHANDLE;
1046
1047        phba->boot_struct.tag = tag;
1048        set_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state);
1049        ctrl->ptag_state[tag].cbfn = beiscsi_boot_process_compl;
1050
1051        be_mcc_notify(phba, tag);
1052        mutex_unlock(&ctrl->mbox_lock);
1053        return tag;
1054}
1055
1056
1057/**
1058 * beiscsi_boot_get_sinfo()- Get boot session info
1059 * @phba: device priv structure instance
1060 *
1061 * Fetches the boot_struct.s_handle info from FW.
1062 * return
1063 *      the TAG used for MBOX Command
1064 *
1065 **/
1066unsigned int beiscsi_boot_get_sinfo(struct beiscsi_hba *phba)
1067{
1068        struct be_ctrl_info *ctrl = &phba->ctrl;
1069        struct be_cmd_get_session_resp *resp;
1070        struct be_cmd_get_session_req *req;
1071        struct be_dma_mem *nonemb_cmd;
1072        struct be_mcc_wrb *wrb;
1073        struct be_sge *sge;
1074        unsigned int tag;
1075
1076        mutex_lock(&ctrl->mbox_lock);
1077        wrb = alloc_mcc_wrb(phba, &tag);
1078        if (!wrb) {
1079                mutex_unlock(&ctrl->mbox_lock);
1080                return 0;
1081        }
1082
1083        nonemb_cmd = &phba->boot_struct.nonemb_cmd;
1084        nonemb_cmd->size = sizeof(*resp);
1085        nonemb_cmd->va = pci_alloc_consistent(phba->ctrl.pdev,
1086                                              nonemb_cmd->size,
1087                                              &nonemb_cmd->dma);
1088        if (!nonemb_cmd->va) {
1089                mutex_unlock(&ctrl->mbox_lock);
1090                return 0;
1091        }
1092
1093        req = nonemb_cmd->va;
1094        memset(req, 0, sizeof(*req));
1095        sge = nonembedded_sgl(wrb);
1096        be_wrb_hdr_prepare(wrb, sizeof(*req), false, 1);
1097        be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
1098                           OPCODE_ISCSI_INI_SESSION_GET_A_SESSION,
1099                           sizeof(*resp));
1100        req->session_handle = phba->boot_struct.s_handle;
1101        sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
1102        sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
1103        sge->len = cpu_to_le32(nonemb_cmd->size);
1104
1105        phba->boot_struct.tag = tag;
1106        set_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state);
1107        ctrl->ptag_state[tag].cbfn = beiscsi_boot_process_compl;
1108
1109        be_mcc_notify(phba, tag);
1110        mutex_unlock(&ctrl->mbox_lock);
1111        return tag;
1112}
1113
1114unsigned int __beiscsi_boot_get_shandle(struct beiscsi_hba *phba, int async)
1115{
1116        struct be_ctrl_info *ctrl = &phba->ctrl;
1117        struct be_mcc_wrb *wrb;
1118        struct be_cmd_get_boot_target_req *req;
1119        unsigned int tag;
1120
1121        mutex_lock(&ctrl->mbox_lock);
1122        wrb = alloc_mcc_wrb(phba, &tag);
1123        if (!wrb) {
1124                mutex_unlock(&ctrl->mbox_lock);
1125                return 0;
1126        }
1127
1128        req = embedded_payload(wrb);
1129        be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
1130        be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
1131                           OPCODE_ISCSI_INI_BOOT_GET_BOOT_TARGET,
1132                           sizeof(struct be_cmd_get_boot_target_resp));
1133
1134        if (async) {
1135                phba->boot_struct.tag = tag;
1136                set_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state);
1137                ctrl->ptag_state[tag].cbfn = beiscsi_boot_process_compl;
1138        }
1139
1140        be_mcc_notify(phba, tag);
1141        mutex_unlock(&ctrl->mbox_lock);
1142        return tag;
1143}
1144
1145/**
1146 * beiscsi_boot_get_shandle()- Get boot session handle
1147 * @phba: device priv structure instance
1148 * @s_handle: session handle returned for boot session.
1149 *
1150 * return
1151 *      Success: 1
1152 *      Failure: negative
1153 *
1154 **/
1155int beiscsi_boot_get_shandle(struct beiscsi_hba *phba, unsigned int *s_handle)
1156{
1157        struct be_cmd_get_boot_target_resp *boot_resp;
1158        struct be_mcc_wrb *wrb;
1159        unsigned int tag;
1160        int rc;
1161
1162        *s_handle = BE_BOOT_INVALID_SHANDLE;
1163        /* get configured boot session count and handle */
1164        tag = __beiscsi_boot_get_shandle(phba, 0);
1165        if (!tag) {
1166                beiscsi_log(phba, KERN_ERR,
1167                            BEISCSI_LOG_CONFIG | BEISCSI_LOG_INIT,
1168                            "BG_%d : Getting Boot Target Info Failed\n");
1169                return -EAGAIN;
1170        }
1171
1172        rc = beiscsi_mccq_compl_wait(phba, tag, &wrb, NULL);
1173        if (rc) {
1174                beiscsi_log(phba, KERN_ERR,
1175                            BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
1176                            "BG_%d : MBX CMD get_boot_target Failed\n");
1177                return -EBUSY;
1178        }
1179
1180        boot_resp = embedded_payload(wrb);
1181        /* check if there are any boot targets configured */
1182        if (!boot_resp->boot_session_count) {
1183                __beiscsi_log(phba, KERN_INFO,
1184                              "BG_%d : No boot targets configured\n");
1185                return -ENXIO;
1186        }
1187
1188        /* only if FW has logged in to the boot target, s_handle is valid */
1189        *s_handle = boot_resp->boot_session_handle;
1190        return 1;
1191}
1192
1193/**
1194 * beiscsi_drvr_ver_disp()- Display the driver Name and Version
1195 * @dev: ptr to device not used.
1196 * @attr: device attribute, not used.
1197 * @buf: contains formatted text driver name and version
1198 *
1199 * return
1200 * size of the formatted string
1201 **/
1202ssize_t
1203beiscsi_drvr_ver_disp(struct device *dev, struct device_attribute *attr,
1204                       char *buf)
1205{
1206        return snprintf(buf, PAGE_SIZE, BE_NAME "\n");
1207}
1208
1209/**
1210 * beiscsi_fw_ver_disp()- Display Firmware Version
1211 * @dev: ptr to device not used.
1212 * @attr: device attribute, not used.
1213 * @buf: contains formatted text Firmware version
1214 *
1215 * return
1216 * size of the formatted string
1217 **/
1218ssize_t
1219beiscsi_fw_ver_disp(struct device *dev, struct device_attribute *attr,
1220                     char *buf)
1221{
1222        struct Scsi_Host *shost = class_to_shost(dev);
1223        struct beiscsi_hba *phba = iscsi_host_priv(shost);
1224
1225        return snprintf(buf, PAGE_SIZE, "%s\n", phba->fw_ver_str);
1226}
1227
1228/**
1229 * beiscsi_active_session_disp()- Display Sessions Active
1230 * @dev: ptr to device not used.
1231 * @attr: device attribute, not used.
1232 * @buf: contains formatted text Session Count
1233 *
1234 * return
1235 * size of the formatted string
1236 **/
1237ssize_t
1238beiscsi_active_session_disp(struct device *dev, struct device_attribute *attr,
1239                         char *buf)
1240{
1241        struct Scsi_Host *shost = class_to_shost(dev);
1242        struct beiscsi_hba *phba = iscsi_host_priv(shost);
1243        uint16_t avlbl_cids = 0, ulp_num, len = 0, total_cids = 0;
1244
1245        for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
1246                if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) {
1247                        avlbl_cids = BEISCSI_ULP_AVLBL_CID(phba, ulp_num);
1248                        total_cids = BEISCSI_GET_CID_COUNT(phba, ulp_num);
1249                        len += snprintf(buf+len, PAGE_SIZE - len,
1250                                        "ULP%d : %d\n", ulp_num,
1251                                        (total_cids - avlbl_cids));
1252                } else
1253                        len += snprintf(buf+len, PAGE_SIZE - len,
1254                                        "ULP%d : %d\n", ulp_num, 0);
1255        }
1256
1257        return len;
1258}
1259
1260/**
1261 * beiscsi_free_session_disp()- Display Avaliable Session
1262 * @dev: ptr to device not used.
1263 * @attr: device attribute, not used.
1264 * @buf: contains formatted text Session Count
1265 *
1266 * return
1267 * size of the formatted string
1268 **/
1269ssize_t
1270beiscsi_free_session_disp(struct device *dev, struct device_attribute *attr,
1271                       char *buf)
1272{
1273        struct Scsi_Host *shost = class_to_shost(dev);
1274        struct beiscsi_hba *phba = iscsi_host_priv(shost);
1275        uint16_t ulp_num, len = 0;
1276
1277        for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
1278                if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported))
1279                        len += snprintf(buf+len, PAGE_SIZE - len,
1280                                        "ULP%d : %d\n", ulp_num,
1281                                        BEISCSI_ULP_AVLBL_CID(phba, ulp_num));
1282                else
1283                        len += snprintf(buf+len, PAGE_SIZE - len,
1284                                        "ULP%d : %d\n", ulp_num, 0);
1285        }
1286
1287        return len;
1288}
1289
1290/**
1291 * beiscsi_adap_family_disp()- Display adapter family.
1292 * @dev: ptr to device to get priv structure
1293 * @attr: device attribute, not used.
1294 * @buf: contains formatted text driver name and version
1295 *
1296 * return
1297 * size of the formatted string
1298 **/
1299ssize_t
1300beiscsi_adap_family_disp(struct device *dev, struct device_attribute *attr,
1301                          char *buf)
1302{
1303        uint16_t dev_id = 0;
1304        struct Scsi_Host *shost = class_to_shost(dev);
1305        struct beiscsi_hba *phba = iscsi_host_priv(shost);
1306
1307        dev_id = phba->pcidev->device;
1308        switch (dev_id) {
1309        case BE_DEVICE_ID1:
1310        case OC_DEVICE_ID1:
1311        case OC_DEVICE_ID2:
1312                return snprintf(buf, PAGE_SIZE, "BE2 Adapter Family\n");
1313                break;
1314        case BE_DEVICE_ID2:
1315        case OC_DEVICE_ID3:
1316                return snprintf(buf, PAGE_SIZE, "BE3-R Adapter Family\n");
1317                break;
1318        case OC_SKH_ID1:
1319                return snprintf(buf, PAGE_SIZE, "Skyhawk-R Adapter Family\n");
1320                break;
1321        default:
1322                return snprintf(buf, PAGE_SIZE,
1323                                "Unknown Adapter Family: 0x%x\n", dev_id);
1324                break;
1325        }
1326}
1327
1328/**
1329 * beiscsi_phys_port()- Display Physical Port Identifier
1330 * @dev: ptr to device not used.
1331 * @attr: device attribute, not used.
1332 * @buf: contains formatted text port identifier
1333 *
1334 * return
1335 * size of the formatted string
1336 **/
1337ssize_t
1338beiscsi_phys_port_disp(struct device *dev, struct device_attribute *attr,
1339                         char *buf)
1340{
1341        struct Scsi_Host *shost = class_to_shost(dev);
1342        struct beiscsi_hba *phba = iscsi_host_priv(shost);
1343
1344        return snprintf(buf, PAGE_SIZE, "Port Identifier : %d\n",
1345                        phba->fw_config.phys_port);
1346}
1347
1348void beiscsi_offload_cxn_v0(struct beiscsi_offload_params *params,
1349                             struct wrb_handle *pwrb_handle,
1350                             struct be_mem_descriptor *mem_descr,
1351                             struct hwi_wrb_context *pwrb_context)
1352{
1353        struct iscsi_wrb *pwrb = pwrb_handle->pwrb;
1354
1355        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
1356                      max_send_data_segment_length, pwrb,
1357                      params->dw[offsetof(struct amap_beiscsi_offload_params,
1358                      max_send_data_segment_length) / 32]);
1359        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, type, pwrb,
1360                      BE_TGT_CTX_UPDT_CMD);
1361        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
1362                      first_burst_length,
1363                      pwrb,
1364                      params->dw[offsetof(struct amap_beiscsi_offload_params,
1365                      first_burst_length) / 32]);
1366        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, erl, pwrb,
1367                      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1368                      erl) / 32] & OFFLD_PARAMS_ERL));
1369        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, dde, pwrb,
1370                      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1371                       dde) / 32] & OFFLD_PARAMS_DDE) >> 2);
1372        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, hde, pwrb,
1373                      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1374                      hde) / 32] & OFFLD_PARAMS_HDE) >> 3);
1375        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, ir2t, pwrb,
1376                      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1377                      ir2t) / 32] & OFFLD_PARAMS_IR2T) >> 4);
1378        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, imd, pwrb,
1379                      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1380                      imd) / 32] & OFFLD_PARAMS_IMD) >> 5);
1381        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, stat_sn,
1382                      pwrb,
1383                      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1384                      exp_statsn) / 32] + 1));
1385        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, wrb_idx,
1386                      pwrb, pwrb_handle->wrb_index);
1387
1388        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
1389                      max_burst_length, pwrb, params->dw[offsetof
1390                      (struct amap_beiscsi_offload_params,
1391                      max_burst_length) / 32]);
1392
1393        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, ptr2nextwrb,
1394                      pwrb, pwrb_handle->wrb_index);
1395        if (pwrb_context->plast_wrb)
1396                AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
1397                              ptr2nextwrb,
1398                              pwrb_context->plast_wrb,
1399                              pwrb_handle->wrb_index);
1400        pwrb_context->plast_wrb = pwrb;
1401
1402        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
1403                      session_state, pwrb, 0);
1404        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, compltonack,
1405                      pwrb, 1);
1406        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, notpredblq,
1407                      pwrb, 0);
1408        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, mode, pwrb,
1409                      0);
1410
1411        mem_descr += ISCSI_MEM_GLOBAL_HEADER;
1412        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
1413                      pad_buffer_addr_hi, pwrb,
1414                      mem_descr->mem_array[0].bus_address.u.a32.address_hi);
1415        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
1416                      pad_buffer_addr_lo, pwrb,
1417                      mem_descr->mem_array[0].bus_address.u.a32.address_lo);
1418}
1419
1420void beiscsi_offload_cxn_v2(struct beiscsi_offload_params *params,
1421                             struct wrb_handle *pwrb_handle,
1422                             struct hwi_wrb_context *pwrb_context)
1423{
1424        struct iscsi_wrb *pwrb = pwrb_handle->pwrb;
1425
1426        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1427                      max_burst_length, pwrb, params->dw[offsetof
1428                      (struct amap_beiscsi_offload_params,
1429                      max_burst_length) / 32]);
1430        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1431                      type, pwrb,
1432                      BE_TGT_CTX_UPDT_CMD);
1433        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1434                      ptr2nextwrb,
1435                      pwrb, pwrb_handle->wrb_index);
1436        if (pwrb_context->plast_wrb)
1437                AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1438                              ptr2nextwrb,
1439                              pwrb_context->plast_wrb,
1440                              pwrb_handle->wrb_index);
1441        pwrb_context->plast_wrb = pwrb;
1442
1443        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, wrb_idx,
1444                      pwrb, pwrb_handle->wrb_index);
1445        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1446                      max_send_data_segment_length, pwrb,
1447                      params->dw[offsetof(struct amap_beiscsi_offload_params,
1448                      max_send_data_segment_length) / 32]);
1449        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1450                      first_burst_length, pwrb,
1451                      params->dw[offsetof(struct amap_beiscsi_offload_params,
1452                      first_burst_length) / 32]);
1453        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1454                      max_recv_dataseg_len, pwrb,
1455                      params->dw[offsetof(struct amap_beiscsi_offload_params,
1456                      max_recv_data_segment_length) / 32]);
1457        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1458                      max_cxns, pwrb, BEISCSI_MAX_CXNS);
1459        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, erl, pwrb,
1460                      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1461                      erl) / 32] & OFFLD_PARAMS_ERL));
1462        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, dde, pwrb,
1463                      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1464                      dde) / 32] & OFFLD_PARAMS_DDE) >> 2);
1465        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, hde, pwrb,
1466                      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1467                      hde) / 32] & OFFLD_PARAMS_HDE) >> 3);
1468        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1469                      ir2t, pwrb,
1470                      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1471                      ir2t) / 32] & OFFLD_PARAMS_IR2T) >> 4);
1472        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, imd, pwrb,
1473                      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1474                      imd) / 32] & OFFLD_PARAMS_IMD) >> 5);
1475        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1476                      data_seq_inorder,
1477                      pwrb,
1478                      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1479                      data_seq_inorder) / 32] &
1480                      OFFLD_PARAMS_DATA_SEQ_INORDER) >> 6);
1481        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
1482                      pdu_seq_inorder,
1483                      pwrb,
1484                      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1485                      pdu_seq_inorder) / 32] &
1486                      OFFLD_PARAMS_PDU_SEQ_INORDER) >> 7);
1487        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, max_r2t,
1488                      pwrb,
1489                      (params->dw[offsetof(struct amap_beiscsi_offload_params,
1490                      max_r2t) / 32] &
1491                      OFFLD_PARAMS_MAX_R2T) >> 8);
1492        AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, stat_sn,
1493                      pwrb,
1494                     (params->dw[offsetof(struct amap_beiscsi_offload_params,
1495                      exp_statsn) / 32] + 1));
1496}
1497