linux/drivers/scsi/qla2xxx/qla_bsg.c
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   1/*
   2 * QLogic Fibre Channel HBA Driver
   3 * Copyright (c)  2003-2012 QLogic Corporation
   4 *
   5 * See LICENSE.qla2xxx for copyright and licensing details.
   6 */
   7#include "qla_def.h"
   8
   9#include <linux/kthread.h>
  10#include <linux/vmalloc.h>
  11#include <linux/delay.h>
  12
  13/* BSG support for ELS/CT pass through */
  14void
  15qla2x00_bsg_job_done(void *data, void *ptr, int res)
  16{
  17        srb_t *sp = (srb_t *)ptr;
  18        struct scsi_qla_host *vha = (scsi_qla_host_t *)data;
  19        struct fc_bsg_job *bsg_job = sp->u.bsg_job;
  20
  21        bsg_job->reply->result = res;
  22        bsg_job->job_done(bsg_job);
  23        sp->free(vha, sp);
  24}
  25
  26void
  27qla2x00_bsg_sp_free(void *data, void *ptr)
  28{
  29        srb_t *sp = (srb_t *)ptr;
  30        struct scsi_qla_host *vha = sp->fcport->vha;
  31        struct fc_bsg_job *bsg_job = sp->u.bsg_job;
  32        struct qla_hw_data *ha = vha->hw;
  33        struct qla_mt_iocb_rqst_fx00 *piocb_rqst;
  34
  35        if (sp->type == SRB_FXIOCB_BCMD) {
  36                piocb_rqst = (struct qla_mt_iocb_rqst_fx00 *)
  37                    &bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
  38
  39                if (piocb_rqst->flags & SRB_FXDISC_REQ_DMA_VALID)
  40                        dma_unmap_sg(&ha->pdev->dev,
  41                            bsg_job->request_payload.sg_list,
  42                            bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
  43
  44                if (piocb_rqst->flags & SRB_FXDISC_RESP_DMA_VALID)
  45                        dma_unmap_sg(&ha->pdev->dev,
  46                            bsg_job->reply_payload.sg_list,
  47                            bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
  48        } else {
  49                dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
  50                    bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
  51
  52                dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
  53                    bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
  54        }
  55
  56        if (sp->type == SRB_CT_CMD ||
  57            sp->type == SRB_FXIOCB_BCMD ||
  58            sp->type == SRB_ELS_CMD_HST)
  59                kfree(sp->fcport);
  60        qla2x00_rel_sp(vha, sp);
  61}
  62
  63int
  64qla24xx_fcp_prio_cfg_valid(scsi_qla_host_t *vha,
  65        struct qla_fcp_prio_cfg *pri_cfg, uint8_t flag)
  66{
  67        int i, ret, num_valid;
  68        uint8_t *bcode;
  69        struct qla_fcp_prio_entry *pri_entry;
  70        uint32_t *bcode_val_ptr, bcode_val;
  71
  72        ret = 1;
  73        num_valid = 0;
  74        bcode = (uint8_t *)pri_cfg;
  75        bcode_val_ptr = (uint32_t *)pri_cfg;
  76        bcode_val = (uint32_t)(*bcode_val_ptr);
  77
  78        if (bcode_val == 0xFFFFFFFF) {
  79                /* No FCP Priority config data in flash */
  80                ql_dbg(ql_dbg_user, vha, 0x7051,
  81                    "No FCP Priority config data.\n");
  82                return 0;
  83        }
  84
  85        if (bcode[0] != 'H' || bcode[1] != 'Q' || bcode[2] != 'O' ||
  86                        bcode[3] != 'S') {
  87                /* Invalid FCP priority data header*/
  88                ql_dbg(ql_dbg_user, vha, 0x7052,
  89                    "Invalid FCP Priority data header. bcode=0x%x.\n",
  90                    bcode_val);
  91                return 0;
  92        }
  93        if (flag != 1)
  94                return ret;
  95
  96        pri_entry = &pri_cfg->entry[0];
  97        for (i = 0; i < pri_cfg->num_entries; i++) {
  98                if (pri_entry->flags & FCP_PRIO_ENTRY_TAG_VALID)
  99                        num_valid++;
 100                pri_entry++;
 101        }
 102
 103        if (num_valid == 0) {
 104                /* No valid FCP priority data entries */
 105                ql_dbg(ql_dbg_user, vha, 0x7053,
 106                    "No valid FCP Priority data entries.\n");
 107                ret = 0;
 108        } else {
 109                /* FCP priority data is valid */
 110                ql_dbg(ql_dbg_user, vha, 0x7054,
 111                    "Valid FCP priority data. num entries = %d.\n",
 112                    num_valid);
 113        }
 114
 115        return ret;
 116}
 117
 118static int
 119qla24xx_proc_fcp_prio_cfg_cmd(struct fc_bsg_job *bsg_job)
 120{
 121        struct Scsi_Host *host = bsg_job->shost;
 122        scsi_qla_host_t *vha = shost_priv(host);
 123        struct qla_hw_data *ha = vha->hw;
 124        int ret = 0;
 125        uint32_t len;
 126        uint32_t oper;
 127
 128        if (!(IS_QLA24XX_TYPE(ha) || IS_QLA25XX(ha) || IS_P3P_TYPE(ha))) {
 129                ret = -EINVAL;
 130                goto exit_fcp_prio_cfg;
 131        }
 132
 133        /* Get the sub command */
 134        oper = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
 135
 136        /* Only set config is allowed if config memory is not allocated */
 137        if (!ha->fcp_prio_cfg && (oper != QLFC_FCP_PRIO_SET_CONFIG)) {
 138                ret = -EINVAL;
 139                goto exit_fcp_prio_cfg;
 140        }
 141        switch (oper) {
 142        case QLFC_FCP_PRIO_DISABLE:
 143                if (ha->flags.fcp_prio_enabled) {
 144                        ha->flags.fcp_prio_enabled = 0;
 145                        ha->fcp_prio_cfg->attributes &=
 146                                ~FCP_PRIO_ATTR_ENABLE;
 147                        qla24xx_update_all_fcp_prio(vha);
 148                        bsg_job->reply->result = DID_OK;
 149                } else {
 150                        ret = -EINVAL;
 151                        bsg_job->reply->result = (DID_ERROR << 16);
 152                        goto exit_fcp_prio_cfg;
 153                }
 154                break;
 155
 156        case QLFC_FCP_PRIO_ENABLE:
 157                if (!ha->flags.fcp_prio_enabled) {
 158                        if (ha->fcp_prio_cfg) {
 159                                ha->flags.fcp_prio_enabled = 1;
 160                                ha->fcp_prio_cfg->attributes |=
 161                                    FCP_PRIO_ATTR_ENABLE;
 162                                qla24xx_update_all_fcp_prio(vha);
 163                                bsg_job->reply->result = DID_OK;
 164                        } else {
 165                                ret = -EINVAL;
 166                                bsg_job->reply->result = (DID_ERROR << 16);
 167                                goto exit_fcp_prio_cfg;
 168                        }
 169                }
 170                break;
 171
 172        case QLFC_FCP_PRIO_GET_CONFIG:
 173                len = bsg_job->reply_payload.payload_len;
 174                if (!len || len > FCP_PRIO_CFG_SIZE) {
 175                        ret = -EINVAL;
 176                        bsg_job->reply->result = (DID_ERROR << 16);
 177                        goto exit_fcp_prio_cfg;
 178                }
 179
 180                bsg_job->reply->result = DID_OK;
 181                bsg_job->reply->reply_payload_rcv_len =
 182                        sg_copy_from_buffer(
 183                        bsg_job->reply_payload.sg_list,
 184                        bsg_job->reply_payload.sg_cnt, ha->fcp_prio_cfg,
 185                        len);
 186
 187                break;
 188
 189        case QLFC_FCP_PRIO_SET_CONFIG:
 190                len = bsg_job->request_payload.payload_len;
 191                if (!len || len > FCP_PRIO_CFG_SIZE) {
 192                        bsg_job->reply->result = (DID_ERROR << 16);
 193                        ret = -EINVAL;
 194                        goto exit_fcp_prio_cfg;
 195                }
 196
 197                if (!ha->fcp_prio_cfg) {
 198                        ha->fcp_prio_cfg = vmalloc(FCP_PRIO_CFG_SIZE);
 199                        if (!ha->fcp_prio_cfg) {
 200                                ql_log(ql_log_warn, vha, 0x7050,
 201                                    "Unable to allocate memory for fcp prio "
 202                                    "config data (%x).\n", FCP_PRIO_CFG_SIZE);
 203                                bsg_job->reply->result = (DID_ERROR << 16);
 204                                ret = -ENOMEM;
 205                                goto exit_fcp_prio_cfg;
 206                        }
 207                }
 208
 209                memset(ha->fcp_prio_cfg, 0, FCP_PRIO_CFG_SIZE);
 210                sg_copy_to_buffer(bsg_job->request_payload.sg_list,
 211                bsg_job->request_payload.sg_cnt, ha->fcp_prio_cfg,
 212                        FCP_PRIO_CFG_SIZE);
 213
 214                /* validate fcp priority data */
 215
 216                if (!qla24xx_fcp_prio_cfg_valid(vha,
 217                    (struct qla_fcp_prio_cfg *) ha->fcp_prio_cfg, 1)) {
 218                        bsg_job->reply->result = (DID_ERROR << 16);
 219                        ret = -EINVAL;
 220                        /* If buffer was invalidatic int
 221                         * fcp_prio_cfg is of no use
 222                         */
 223                        vfree(ha->fcp_prio_cfg);
 224                        ha->fcp_prio_cfg = NULL;
 225                        goto exit_fcp_prio_cfg;
 226                }
 227
 228                ha->flags.fcp_prio_enabled = 0;
 229                if (ha->fcp_prio_cfg->attributes & FCP_PRIO_ATTR_ENABLE)
 230                        ha->flags.fcp_prio_enabled = 1;
 231                qla24xx_update_all_fcp_prio(vha);
 232                bsg_job->reply->result = DID_OK;
 233                break;
 234        default:
 235                ret = -EINVAL;
 236                break;
 237        }
 238exit_fcp_prio_cfg:
 239        if (!ret)
 240                bsg_job->job_done(bsg_job);
 241        return ret;
 242}
 243
 244static int
 245qla2x00_process_els(struct fc_bsg_job *bsg_job)
 246{
 247        struct fc_rport *rport;
 248        fc_port_t *fcport = NULL;
 249        struct Scsi_Host *host;
 250        scsi_qla_host_t *vha;
 251        struct qla_hw_data *ha;
 252        srb_t *sp;
 253        const char *type;
 254        int req_sg_cnt, rsp_sg_cnt;
 255        int rval =  (DRIVER_ERROR << 16);
 256        uint16_t nextlid = 0;
 257
 258        if (bsg_job->request->msgcode == FC_BSG_RPT_ELS) {
 259                rport = bsg_job->rport;
 260                fcport = *(fc_port_t **) rport->dd_data;
 261                host = rport_to_shost(rport);
 262                vha = shost_priv(host);
 263                ha = vha->hw;
 264                type = "FC_BSG_RPT_ELS";
 265        } else {
 266                host = bsg_job->shost;
 267                vha = shost_priv(host);
 268                ha = vha->hw;
 269                type = "FC_BSG_HST_ELS_NOLOGIN";
 270        }
 271
 272        if (!vha->flags.online) {
 273                ql_log(ql_log_warn, vha, 0x7005, "Host not online.\n");
 274                rval = -EIO;
 275                goto done;
 276        }
 277
 278        /* pass through is supported only for ISP 4Gb or higher */
 279        if (!IS_FWI2_CAPABLE(ha)) {
 280                ql_dbg(ql_dbg_user, vha, 0x7001,
 281                    "ELS passthru not supported for ISP23xx based adapters.\n");
 282                rval = -EPERM;
 283                goto done;
 284        }
 285
 286        /*  Multiple SG's are not supported for ELS requests */
 287        if (bsg_job->request_payload.sg_cnt > 1 ||
 288                bsg_job->reply_payload.sg_cnt > 1) {
 289                ql_dbg(ql_dbg_user, vha, 0x7002,
 290                    "Multiple SG's are not suppored for ELS requests, "
 291                    "request_sg_cnt=%x reply_sg_cnt=%x.\n",
 292                    bsg_job->request_payload.sg_cnt,
 293                    bsg_job->reply_payload.sg_cnt);
 294                rval = -EPERM;
 295                goto done;
 296        }
 297
 298        /* ELS request for rport */
 299        if (bsg_job->request->msgcode == FC_BSG_RPT_ELS) {
 300                /* make sure the rport is logged in,
 301                 * if not perform fabric login
 302                 */
 303                if (qla2x00_fabric_login(vha, fcport, &nextlid)) {
 304                        ql_dbg(ql_dbg_user, vha, 0x7003,
 305                            "Failed to login port %06X for ELS passthru.\n",
 306                            fcport->d_id.b24);
 307                        rval = -EIO;
 308                        goto done;
 309                }
 310        } else {
 311                /* Allocate a dummy fcport structure, since functions
 312                 * preparing the IOCB and mailbox command retrieves port
 313                 * specific information from fcport structure. For Host based
 314                 * ELS commands there will be no fcport structure allocated
 315                 */
 316                fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
 317                if (!fcport) {
 318                        rval = -ENOMEM;
 319                        goto done;
 320                }
 321
 322                /* Initialize all required  fields of fcport */
 323                fcport->vha = vha;
 324                fcport->d_id.b.al_pa =
 325                        bsg_job->request->rqst_data.h_els.port_id[0];
 326                fcport->d_id.b.area =
 327                        bsg_job->request->rqst_data.h_els.port_id[1];
 328                fcport->d_id.b.domain =
 329                        bsg_job->request->rqst_data.h_els.port_id[2];
 330                fcport->loop_id =
 331                        (fcport->d_id.b.al_pa == 0xFD) ?
 332                        NPH_FABRIC_CONTROLLER : NPH_F_PORT;
 333        }
 334
 335        req_sg_cnt =
 336                dma_map_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
 337                bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
 338        if (!req_sg_cnt) {
 339                rval = -ENOMEM;
 340                goto done_free_fcport;
 341        }
 342
 343        rsp_sg_cnt = dma_map_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
 344                bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
 345        if (!rsp_sg_cnt) {
 346                rval = -ENOMEM;
 347                goto done_free_fcport;
 348        }
 349
 350        if ((req_sg_cnt !=  bsg_job->request_payload.sg_cnt) ||
 351                (rsp_sg_cnt != bsg_job->reply_payload.sg_cnt)) {
 352                ql_log(ql_log_warn, vha, 0x7008,
 353                    "dma mapping resulted in different sg counts, "
 354                    "request_sg_cnt: %x dma_request_sg_cnt:%x reply_sg_cnt:%x "
 355                    "dma_reply_sg_cnt:%x.\n", bsg_job->request_payload.sg_cnt,
 356                    req_sg_cnt, bsg_job->reply_payload.sg_cnt, rsp_sg_cnt);
 357                rval = -EAGAIN;
 358                goto done_unmap_sg;
 359        }
 360
 361        /* Alloc SRB structure */
 362        sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
 363        if (!sp) {
 364                rval = -ENOMEM;
 365                goto done_unmap_sg;
 366        }
 367
 368        sp->type =
 369                (bsg_job->request->msgcode == FC_BSG_RPT_ELS ?
 370                SRB_ELS_CMD_RPT : SRB_ELS_CMD_HST);
 371        sp->name =
 372                (bsg_job->request->msgcode == FC_BSG_RPT_ELS ?
 373                "bsg_els_rpt" : "bsg_els_hst");
 374        sp->u.bsg_job = bsg_job;
 375        sp->free = qla2x00_bsg_sp_free;
 376        sp->done = qla2x00_bsg_job_done;
 377
 378        ql_dbg(ql_dbg_user, vha, 0x700a,
 379            "bsg rqst type: %s els type: %x - loop-id=%x "
 380            "portid=%-2x%02x%02x.\n", type,
 381            bsg_job->request->rqst_data.h_els.command_code, fcport->loop_id,
 382            fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa);
 383
 384        rval = qla2x00_start_sp(sp);
 385        if (rval != QLA_SUCCESS) {
 386                ql_log(ql_log_warn, vha, 0x700e,
 387                    "qla2x00_start_sp failed = %d\n", rval);
 388                qla2x00_rel_sp(vha, sp);
 389                rval = -EIO;
 390                goto done_unmap_sg;
 391        }
 392        return rval;
 393
 394done_unmap_sg:
 395        dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
 396                bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
 397        dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
 398                bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
 399        goto done_free_fcport;
 400
 401done_free_fcport:
 402        if (bsg_job->request->msgcode == FC_BSG_RPT_ELS)
 403                kfree(fcport);
 404done:
 405        return rval;
 406}
 407
 408inline uint16_t
 409qla24xx_calc_ct_iocbs(uint16_t dsds)
 410{
 411        uint16_t iocbs;
 412
 413        iocbs = 1;
 414        if (dsds > 2) {
 415                iocbs += (dsds - 2) / 5;
 416                if ((dsds - 2) % 5)
 417                        iocbs++;
 418        }
 419        return iocbs;
 420}
 421
 422static int
 423qla2x00_process_ct(struct fc_bsg_job *bsg_job)
 424{
 425        srb_t *sp;
 426        struct Scsi_Host *host = bsg_job->shost;
 427        scsi_qla_host_t *vha = shost_priv(host);
 428        struct qla_hw_data *ha = vha->hw;
 429        int rval = (DRIVER_ERROR << 16);
 430        int req_sg_cnt, rsp_sg_cnt;
 431        uint16_t loop_id;
 432        struct fc_port *fcport;
 433        char  *type = "FC_BSG_HST_CT";
 434
 435        req_sg_cnt =
 436                dma_map_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
 437                        bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
 438        if (!req_sg_cnt) {
 439                ql_log(ql_log_warn, vha, 0x700f,
 440                    "dma_map_sg return %d for request\n", req_sg_cnt);
 441                rval = -ENOMEM;
 442                goto done;
 443        }
 444
 445        rsp_sg_cnt = dma_map_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
 446                bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
 447        if (!rsp_sg_cnt) {
 448                ql_log(ql_log_warn, vha, 0x7010,
 449                    "dma_map_sg return %d for reply\n", rsp_sg_cnt);
 450                rval = -ENOMEM;
 451                goto done;
 452        }
 453
 454        if ((req_sg_cnt !=  bsg_job->request_payload.sg_cnt) ||
 455            (rsp_sg_cnt != bsg_job->reply_payload.sg_cnt)) {
 456                ql_log(ql_log_warn, vha, 0x7011,
 457                    "request_sg_cnt: %x dma_request_sg_cnt: %x reply_sg_cnt:%x "
 458                    "dma_reply_sg_cnt: %x\n", bsg_job->request_payload.sg_cnt,
 459                    req_sg_cnt, bsg_job->reply_payload.sg_cnt, rsp_sg_cnt);
 460                rval = -EAGAIN;
 461                goto done_unmap_sg;
 462        }
 463
 464        if (!vha->flags.online) {
 465                ql_log(ql_log_warn, vha, 0x7012,
 466                    "Host is not online.\n");
 467                rval = -EIO;
 468                goto done_unmap_sg;
 469        }
 470
 471        loop_id =
 472                (bsg_job->request->rqst_data.h_ct.preamble_word1 & 0xFF000000)
 473                        >> 24;
 474        switch (loop_id) {
 475        case 0xFC:
 476                loop_id = cpu_to_le16(NPH_SNS);
 477                break;
 478        case 0xFA:
 479                loop_id = vha->mgmt_svr_loop_id;
 480                break;
 481        default:
 482                ql_dbg(ql_dbg_user, vha, 0x7013,
 483                    "Unknown loop id: %x.\n", loop_id);
 484                rval = -EINVAL;
 485                goto done_unmap_sg;
 486        }
 487
 488        /* Allocate a dummy fcport structure, since functions preparing the
 489         * IOCB and mailbox command retrieves port specific information
 490         * from fcport structure. For Host based ELS commands there will be
 491         * no fcport structure allocated
 492         */
 493        fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
 494        if (!fcport) {
 495                ql_log(ql_log_warn, vha, 0x7014,
 496                    "Failed to allocate fcport.\n");
 497                rval = -ENOMEM;
 498                goto done_unmap_sg;
 499        }
 500
 501        /* Initialize all required  fields of fcport */
 502        fcport->vha = vha;
 503        fcport->d_id.b.al_pa = bsg_job->request->rqst_data.h_ct.port_id[0];
 504        fcport->d_id.b.area = bsg_job->request->rqst_data.h_ct.port_id[1];
 505        fcport->d_id.b.domain = bsg_job->request->rqst_data.h_ct.port_id[2];
 506        fcport->loop_id = loop_id;
 507
 508        /* Alloc SRB structure */
 509        sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
 510        if (!sp) {
 511                ql_log(ql_log_warn, vha, 0x7015,
 512                    "qla2x00_get_sp failed.\n");
 513                rval = -ENOMEM;
 514                goto done_free_fcport;
 515        }
 516
 517        sp->type = SRB_CT_CMD;
 518        sp->name = "bsg_ct";
 519        sp->iocbs = qla24xx_calc_ct_iocbs(req_sg_cnt + rsp_sg_cnt);
 520        sp->u.bsg_job = bsg_job;
 521        sp->free = qla2x00_bsg_sp_free;
 522        sp->done = qla2x00_bsg_job_done;
 523
 524        ql_dbg(ql_dbg_user, vha, 0x7016,
 525            "bsg rqst type: %s else type: %x - "
 526            "loop-id=%x portid=%02x%02x%02x.\n", type,
 527            (bsg_job->request->rqst_data.h_ct.preamble_word2 >> 16),
 528            fcport->loop_id, fcport->d_id.b.domain, fcport->d_id.b.area,
 529            fcport->d_id.b.al_pa);
 530
 531        rval = qla2x00_start_sp(sp);
 532        if (rval != QLA_SUCCESS) {
 533                ql_log(ql_log_warn, vha, 0x7017,
 534                    "qla2x00_start_sp failed=%d.\n", rval);
 535                qla2x00_rel_sp(vha, sp);
 536                rval = -EIO;
 537                goto done_free_fcport;
 538        }
 539        return rval;
 540
 541done_free_fcport:
 542        kfree(fcport);
 543done_unmap_sg:
 544        dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
 545                bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
 546        dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
 547                bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
 548done:
 549        return rval;
 550}
 551
 552/* Disable loopback mode */
 553static inline int
 554qla81xx_reset_loopback_mode(scsi_qla_host_t *vha, uint16_t *config,
 555                            int wait, int wait2)
 556{
 557        int ret = 0;
 558        int rval = 0;
 559        uint16_t new_config[4];
 560        struct qla_hw_data *ha = vha->hw;
 561
 562        if (!IS_QLA81XX(ha) && !IS_QLA8031(ha) && !IS_QLA8044(ha))
 563                goto done_reset_internal;
 564
 565        memset(new_config, 0 , sizeof(new_config));
 566        if ((config[0] & INTERNAL_LOOPBACK_MASK) >> 1 ==
 567            ENABLE_INTERNAL_LOOPBACK ||
 568            (config[0] & INTERNAL_LOOPBACK_MASK) >> 1 ==
 569            ENABLE_EXTERNAL_LOOPBACK) {
 570                new_config[0] = config[0] & ~INTERNAL_LOOPBACK_MASK;
 571                ql_dbg(ql_dbg_user, vha, 0x70bf, "new_config[0]=%02x\n",
 572                    (new_config[0] & INTERNAL_LOOPBACK_MASK));
 573                memcpy(&new_config[1], &config[1], sizeof(uint16_t) * 3) ;
 574
 575                ha->notify_dcbx_comp = wait;
 576                ha->notify_lb_portup_comp = wait2;
 577
 578                ret = qla81xx_set_port_config(vha, new_config);
 579                if (ret != QLA_SUCCESS) {
 580                        ql_log(ql_log_warn, vha, 0x7025,
 581                            "Set port config failed.\n");
 582                        ha->notify_dcbx_comp = 0;
 583                        ha->notify_lb_portup_comp = 0;
 584                        rval = -EINVAL;
 585                        goto done_reset_internal;
 586                }
 587
 588                /* Wait for DCBX complete event */
 589                if (wait && !wait_for_completion_timeout(&ha->dcbx_comp,
 590                        (DCBX_COMP_TIMEOUT * HZ))) {
 591                        ql_dbg(ql_dbg_user, vha, 0x7026,
 592                            "DCBX completion not received.\n");
 593                        ha->notify_dcbx_comp = 0;
 594                        ha->notify_lb_portup_comp = 0;
 595                        rval = -EINVAL;
 596                        goto done_reset_internal;
 597                } else
 598                        ql_dbg(ql_dbg_user, vha, 0x7027,
 599                            "DCBX completion received.\n");
 600
 601                if (wait2 &&
 602                    !wait_for_completion_timeout(&ha->lb_portup_comp,
 603                    (LB_PORTUP_COMP_TIMEOUT * HZ))) {
 604                        ql_dbg(ql_dbg_user, vha, 0x70c5,
 605                            "Port up completion not received.\n");
 606                        ha->notify_lb_portup_comp = 0;
 607                        rval = -EINVAL;
 608                        goto done_reset_internal;
 609                } else
 610                        ql_dbg(ql_dbg_user, vha, 0x70c6,
 611                            "Port up completion received.\n");
 612
 613                ha->notify_dcbx_comp = 0;
 614                ha->notify_lb_portup_comp = 0;
 615        }
 616done_reset_internal:
 617        return rval;
 618}
 619
 620/*
 621 * Set the port configuration to enable the internal or external loopback
 622 * depending on the loopback mode.
 623 */
 624static inline int
 625qla81xx_set_loopback_mode(scsi_qla_host_t *vha, uint16_t *config,
 626        uint16_t *new_config, uint16_t mode)
 627{
 628        int ret = 0;
 629        int rval = 0;
 630        unsigned long rem_tmo = 0, current_tmo = 0;
 631        struct qla_hw_data *ha = vha->hw;
 632
 633        if (!IS_QLA81XX(ha) && !IS_QLA8031(ha) && !IS_QLA8044(ha))
 634                goto done_set_internal;
 635
 636        if (mode == INTERNAL_LOOPBACK)
 637                new_config[0] = config[0] | (ENABLE_INTERNAL_LOOPBACK << 1);
 638        else if (mode == EXTERNAL_LOOPBACK)
 639                new_config[0] = config[0] | (ENABLE_EXTERNAL_LOOPBACK << 1);
 640        ql_dbg(ql_dbg_user, vha, 0x70be,
 641             "new_config[0]=%02x\n", (new_config[0] & INTERNAL_LOOPBACK_MASK));
 642
 643        memcpy(&new_config[1], &config[1], sizeof(uint16_t) * 3);
 644
 645        ha->notify_dcbx_comp = 1;
 646        ret = qla81xx_set_port_config(vha, new_config);
 647        if (ret != QLA_SUCCESS) {
 648                ql_log(ql_log_warn, vha, 0x7021,
 649                    "set port config failed.\n");
 650                ha->notify_dcbx_comp = 0;
 651                rval = -EINVAL;
 652                goto done_set_internal;
 653        }
 654
 655        /* Wait for DCBX complete event */
 656        current_tmo = DCBX_COMP_TIMEOUT * HZ;
 657        while (1) {
 658                rem_tmo = wait_for_completion_timeout(&ha->dcbx_comp,
 659                    current_tmo);
 660                if (!ha->idc_extend_tmo || rem_tmo) {
 661                        ha->idc_extend_tmo = 0;
 662                        break;
 663                }
 664                current_tmo = ha->idc_extend_tmo * HZ;
 665                ha->idc_extend_tmo = 0;
 666        }
 667
 668        if (!rem_tmo) {
 669                ql_dbg(ql_dbg_user, vha, 0x7022,
 670                    "DCBX completion not received.\n");
 671                ret = qla81xx_reset_loopback_mode(vha, new_config, 0, 0);
 672                /*
 673                 * If the reset of the loopback mode doesn't work take a FCoE
 674                 * dump and reset the chip.
 675                 */
 676                if (ret) {
 677                        ha->isp_ops->fw_dump(vha, 0);
 678                        set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 679                }
 680                rval = -EINVAL;
 681        } else {
 682                if (ha->flags.idc_compl_status) {
 683                        ql_dbg(ql_dbg_user, vha, 0x70c3,
 684                            "Bad status in IDC Completion AEN\n");
 685                        rval = -EINVAL;
 686                        ha->flags.idc_compl_status = 0;
 687                } else
 688                        ql_dbg(ql_dbg_user, vha, 0x7023,
 689                            "DCBX completion received.\n");
 690        }
 691
 692        ha->notify_dcbx_comp = 0;
 693        ha->idc_extend_tmo = 0;
 694
 695done_set_internal:
 696        return rval;
 697}
 698
 699static int
 700qla2x00_process_loopback(struct fc_bsg_job *bsg_job)
 701{
 702        struct Scsi_Host *host = bsg_job->shost;
 703        scsi_qla_host_t *vha = shost_priv(host);
 704        struct qla_hw_data *ha = vha->hw;
 705        int rval;
 706        uint8_t command_sent;
 707        char *type;
 708        struct msg_echo_lb elreq;
 709        uint16_t response[MAILBOX_REGISTER_COUNT];
 710        uint16_t config[4], new_config[4];
 711        uint8_t *fw_sts_ptr;
 712        uint8_t *req_data = NULL;
 713        dma_addr_t req_data_dma;
 714        uint32_t req_data_len;
 715        uint8_t *rsp_data = NULL;
 716        dma_addr_t rsp_data_dma;
 717        uint32_t rsp_data_len;
 718
 719        if (!vha->flags.online) {
 720                ql_log(ql_log_warn, vha, 0x7019, "Host is not online.\n");
 721                return -EIO;
 722        }
 723
 724        elreq.req_sg_cnt = dma_map_sg(&ha->pdev->dev,
 725                bsg_job->request_payload.sg_list, bsg_job->request_payload.sg_cnt,
 726                DMA_TO_DEVICE);
 727
 728        if (!elreq.req_sg_cnt) {
 729                ql_log(ql_log_warn, vha, 0x701a,
 730                    "dma_map_sg returned %d for request.\n", elreq.req_sg_cnt);
 731                return -ENOMEM;
 732        }
 733
 734        elreq.rsp_sg_cnt = dma_map_sg(&ha->pdev->dev,
 735                bsg_job->reply_payload.sg_list, bsg_job->reply_payload.sg_cnt,
 736                DMA_FROM_DEVICE);
 737
 738        if (!elreq.rsp_sg_cnt) {
 739                ql_log(ql_log_warn, vha, 0x701b,
 740                    "dma_map_sg returned %d for reply.\n", elreq.rsp_sg_cnt);
 741                rval = -ENOMEM;
 742                goto done_unmap_req_sg;
 743        }
 744
 745        if ((elreq.req_sg_cnt !=  bsg_job->request_payload.sg_cnt) ||
 746                (elreq.rsp_sg_cnt != bsg_job->reply_payload.sg_cnt)) {
 747                ql_log(ql_log_warn, vha, 0x701c,
 748                    "dma mapping resulted in different sg counts, "
 749                    "request_sg_cnt: %x dma_request_sg_cnt: %x "
 750                    "reply_sg_cnt: %x dma_reply_sg_cnt: %x.\n",
 751                    bsg_job->request_payload.sg_cnt, elreq.req_sg_cnt,
 752                    bsg_job->reply_payload.sg_cnt, elreq.rsp_sg_cnt);
 753                rval = -EAGAIN;
 754                goto done_unmap_sg;
 755        }
 756        req_data_len = rsp_data_len = bsg_job->request_payload.payload_len;
 757        req_data = dma_alloc_coherent(&ha->pdev->dev, req_data_len,
 758                &req_data_dma, GFP_KERNEL);
 759        if (!req_data) {
 760                ql_log(ql_log_warn, vha, 0x701d,
 761                    "dma alloc failed for req_data.\n");
 762                rval = -ENOMEM;
 763                goto done_unmap_sg;
 764        }
 765
 766        rsp_data = dma_alloc_coherent(&ha->pdev->dev, rsp_data_len,
 767                &rsp_data_dma, GFP_KERNEL);
 768        if (!rsp_data) {
 769                ql_log(ql_log_warn, vha, 0x7004,
 770                    "dma alloc failed for rsp_data.\n");
 771                rval = -ENOMEM;
 772                goto done_free_dma_req;
 773        }
 774
 775        /* Copy the request buffer in req_data now */
 776        sg_copy_to_buffer(bsg_job->request_payload.sg_list,
 777                bsg_job->request_payload.sg_cnt, req_data, req_data_len);
 778
 779        elreq.send_dma = req_data_dma;
 780        elreq.rcv_dma = rsp_data_dma;
 781        elreq.transfer_size = req_data_len;
 782
 783        elreq.options = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
 784        elreq.iteration_count =
 785            bsg_job->request->rqst_data.h_vendor.vendor_cmd[2];
 786
 787        if (atomic_read(&vha->loop_state) == LOOP_READY &&
 788            (ha->current_topology == ISP_CFG_F ||
 789            ((IS_QLA81XX(ha) || IS_QLA8031(ha) || IS_QLA8044(ha)) &&
 790            le32_to_cpu(*(uint32_t *)req_data) == ELS_OPCODE_BYTE
 791            && req_data_len == MAX_ELS_FRAME_PAYLOAD)) &&
 792                elreq.options == EXTERNAL_LOOPBACK) {
 793                type = "FC_BSG_HST_VENDOR_ECHO_DIAG";
 794                ql_dbg(ql_dbg_user, vha, 0x701e,
 795                    "BSG request type: %s.\n", type);
 796                command_sent = INT_DEF_LB_ECHO_CMD;
 797                rval = qla2x00_echo_test(vha, &elreq, response);
 798        } else {
 799                if (IS_QLA81XX(ha) || IS_QLA8031(ha) || IS_QLA8044(ha)) {
 800                        memset(config, 0, sizeof(config));
 801                        memset(new_config, 0, sizeof(new_config));
 802
 803                        if (qla81xx_get_port_config(vha, config)) {
 804                                ql_log(ql_log_warn, vha, 0x701f,
 805                                    "Get port config failed.\n");
 806                                rval = -EPERM;
 807                                goto done_free_dma_rsp;
 808                        }
 809
 810                        if ((config[0] & INTERNAL_LOOPBACK_MASK) != 0) {
 811                                ql_dbg(ql_dbg_user, vha, 0x70c4,
 812                                    "Loopback operation already in "
 813                                    "progress.\n");
 814                                rval = -EAGAIN;
 815                                goto done_free_dma_rsp;
 816                        }
 817
 818                        ql_dbg(ql_dbg_user, vha, 0x70c0,
 819                            "elreq.options=%04x\n", elreq.options);
 820
 821                        if (elreq.options == EXTERNAL_LOOPBACK)
 822                                if (IS_QLA8031(ha) || IS_QLA8044(ha))
 823                                        rval = qla81xx_set_loopback_mode(vha,
 824                                            config, new_config, elreq.options);
 825                                else
 826                                        rval = qla81xx_reset_loopback_mode(vha,
 827                                            config, 1, 0);
 828                        else
 829                                rval = qla81xx_set_loopback_mode(vha, config,
 830                                    new_config, elreq.options);
 831
 832                        if (rval) {
 833                                rval = -EPERM;
 834                                goto done_free_dma_rsp;
 835                        }
 836
 837                        type = "FC_BSG_HST_VENDOR_LOOPBACK";
 838                        ql_dbg(ql_dbg_user, vha, 0x7028,
 839                            "BSG request type: %s.\n", type);
 840
 841                        command_sent = INT_DEF_LB_LOOPBACK_CMD;
 842                        rval = qla2x00_loopback_test(vha, &elreq, response);
 843
 844                        if (response[0] == MBS_COMMAND_ERROR &&
 845                                        response[1] == MBS_LB_RESET) {
 846                                ql_log(ql_log_warn, vha, 0x7029,
 847                                    "MBX command error, Aborting ISP.\n");
 848                                set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 849                                qla2xxx_wake_dpc(vha);
 850                                qla2x00_wait_for_chip_reset(vha);
 851                                /* Also reset the MPI */
 852                                if (IS_QLA81XX(ha)) {
 853                                        if (qla81xx_restart_mpi_firmware(vha) !=
 854                                            QLA_SUCCESS) {
 855                                                ql_log(ql_log_warn, vha, 0x702a,
 856                                                    "MPI reset failed.\n");
 857                                        }
 858                                }
 859
 860                                rval = -EIO;
 861                                goto done_free_dma_rsp;
 862                        }
 863
 864                        if (new_config[0]) {
 865                                int ret;
 866
 867                                /* Revert back to original port config
 868                                 * Also clear internal loopback
 869                                 */
 870                                ret = qla81xx_reset_loopback_mode(vha,
 871                                    new_config, 0, 1);
 872                                if (ret) {
 873                                        /*
 874                                         * If the reset of the loopback mode
 875                                         * doesn't work take FCoE dump and then
 876                                         * reset the chip.
 877                                         */
 878                                        ha->isp_ops->fw_dump(vha, 0);
 879                                        set_bit(ISP_ABORT_NEEDED,
 880                                            &vha->dpc_flags);
 881                                }
 882
 883                        }
 884
 885                } else {
 886                        type = "FC_BSG_HST_VENDOR_LOOPBACK";
 887                        ql_dbg(ql_dbg_user, vha, 0x702b,
 888                            "BSG request type: %s.\n", type);
 889                        command_sent = INT_DEF_LB_LOOPBACK_CMD;
 890                        rval = qla2x00_loopback_test(vha, &elreq, response);
 891                }
 892        }
 893
 894        if (rval) {
 895                ql_log(ql_log_warn, vha, 0x702c,
 896                    "Vendor request %s failed.\n", type);
 897
 898                rval = 0;
 899                bsg_job->reply->result = (DID_ERROR << 16);
 900                bsg_job->reply->reply_payload_rcv_len = 0;
 901        } else {
 902                ql_dbg(ql_dbg_user, vha, 0x702d,
 903                    "Vendor request %s completed.\n", type);
 904                bsg_job->reply->result = (DID_OK << 16);
 905                sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
 906                        bsg_job->reply_payload.sg_cnt, rsp_data,
 907                        rsp_data_len);
 908        }
 909
 910        bsg_job->reply_len = sizeof(struct fc_bsg_reply) +
 911            sizeof(response) + sizeof(uint8_t);
 912        fw_sts_ptr = ((uint8_t *)bsg_job->req->sense) +
 913            sizeof(struct fc_bsg_reply);
 914        memcpy(fw_sts_ptr, response, sizeof(response));
 915        fw_sts_ptr += sizeof(response);
 916        *fw_sts_ptr = command_sent;
 917
 918done_free_dma_rsp:
 919        dma_free_coherent(&ha->pdev->dev, rsp_data_len,
 920                rsp_data, rsp_data_dma);
 921done_free_dma_req:
 922        dma_free_coherent(&ha->pdev->dev, req_data_len,
 923                req_data, req_data_dma);
 924done_unmap_sg:
 925        dma_unmap_sg(&ha->pdev->dev,
 926            bsg_job->reply_payload.sg_list,
 927            bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
 928done_unmap_req_sg:
 929        dma_unmap_sg(&ha->pdev->dev,
 930            bsg_job->request_payload.sg_list,
 931            bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
 932        if (!rval)
 933                bsg_job->job_done(bsg_job);
 934        return rval;
 935}
 936
 937static int
 938qla84xx_reset(struct fc_bsg_job *bsg_job)
 939{
 940        struct Scsi_Host *host = bsg_job->shost;
 941        scsi_qla_host_t *vha = shost_priv(host);
 942        struct qla_hw_data *ha = vha->hw;
 943        int rval = 0;
 944        uint32_t flag;
 945
 946        if (!IS_QLA84XX(ha)) {
 947                ql_dbg(ql_dbg_user, vha, 0x702f, "Not 84xx, exiting.\n");
 948                return -EINVAL;
 949        }
 950
 951        flag = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
 952
 953        rval = qla84xx_reset_chip(vha, flag == A84_ISSUE_RESET_DIAG_FW);
 954
 955        if (rval) {
 956                ql_log(ql_log_warn, vha, 0x7030,
 957                    "Vendor request 84xx reset failed.\n");
 958                rval = (DID_ERROR << 16);
 959
 960        } else {
 961                ql_dbg(ql_dbg_user, vha, 0x7031,
 962                    "Vendor request 84xx reset completed.\n");
 963                bsg_job->reply->result = DID_OK;
 964                bsg_job->job_done(bsg_job);
 965        }
 966
 967        return rval;
 968}
 969
 970static int
 971qla84xx_updatefw(struct fc_bsg_job *bsg_job)
 972{
 973        struct Scsi_Host *host = bsg_job->shost;
 974        scsi_qla_host_t *vha = shost_priv(host);
 975        struct qla_hw_data *ha = vha->hw;
 976        struct verify_chip_entry_84xx *mn = NULL;
 977        dma_addr_t mn_dma, fw_dma;
 978        void *fw_buf = NULL;
 979        int rval = 0;
 980        uint32_t sg_cnt;
 981        uint32_t data_len;
 982        uint16_t options;
 983        uint32_t flag;
 984        uint32_t fw_ver;
 985
 986        if (!IS_QLA84XX(ha)) {
 987                ql_dbg(ql_dbg_user, vha, 0x7032,
 988                    "Not 84xx, exiting.\n");
 989                return -EINVAL;
 990        }
 991
 992        sg_cnt = dma_map_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
 993                bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
 994        if (!sg_cnt) {
 995                ql_log(ql_log_warn, vha, 0x7033,
 996                    "dma_map_sg returned %d for request.\n", sg_cnt);
 997                return -ENOMEM;
 998        }
 999
1000        if (sg_cnt != bsg_job->request_payload.sg_cnt) {
1001                ql_log(ql_log_warn, vha, 0x7034,
1002                    "DMA mapping resulted in different sg counts, "
1003                    "request_sg_cnt: %x dma_request_sg_cnt: %x.\n",
1004                    bsg_job->request_payload.sg_cnt, sg_cnt);
1005                rval = -EAGAIN;
1006                goto done_unmap_sg;
1007        }
1008
1009        data_len = bsg_job->request_payload.payload_len;
1010        fw_buf = dma_alloc_coherent(&ha->pdev->dev, data_len,
1011                &fw_dma, GFP_KERNEL);
1012        if (!fw_buf) {
1013                ql_log(ql_log_warn, vha, 0x7035,
1014                    "DMA alloc failed for fw_buf.\n");
1015                rval = -ENOMEM;
1016                goto done_unmap_sg;
1017        }
1018
1019        sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1020                bsg_job->request_payload.sg_cnt, fw_buf, data_len);
1021
1022        mn = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &mn_dma);
1023        if (!mn) {
1024                ql_log(ql_log_warn, vha, 0x7036,
1025                    "DMA alloc failed for fw buffer.\n");
1026                rval = -ENOMEM;
1027                goto done_free_fw_buf;
1028        }
1029
1030        flag = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
1031        fw_ver = le32_to_cpu(*((uint32_t *)((uint32_t *)fw_buf + 2)));
1032
1033        memset(mn, 0, sizeof(struct access_chip_84xx));
1034        mn->entry_type = VERIFY_CHIP_IOCB_TYPE;
1035        mn->entry_count = 1;
1036
1037        options = VCO_FORCE_UPDATE | VCO_END_OF_DATA;
1038        if (flag == A84_ISSUE_UPDATE_DIAGFW_CMD)
1039                options |= VCO_DIAG_FW;
1040
1041        mn->options = cpu_to_le16(options);
1042        mn->fw_ver =  cpu_to_le32(fw_ver);
1043        mn->fw_size =  cpu_to_le32(data_len);
1044        mn->fw_seq_size =  cpu_to_le32(data_len);
1045        mn->dseg_address[0] = cpu_to_le32(LSD(fw_dma));
1046        mn->dseg_address[1] = cpu_to_le32(MSD(fw_dma));
1047        mn->dseg_length = cpu_to_le32(data_len);
1048        mn->data_seg_cnt = cpu_to_le16(1);
1049
1050        rval = qla2x00_issue_iocb_timeout(vha, mn, mn_dma, 0, 120);
1051
1052        if (rval) {
1053                ql_log(ql_log_warn, vha, 0x7037,
1054                    "Vendor request 84xx updatefw failed.\n");
1055
1056                rval = (DID_ERROR << 16);
1057        } else {
1058                ql_dbg(ql_dbg_user, vha, 0x7038,
1059                    "Vendor request 84xx updatefw completed.\n");
1060
1061                bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1062                bsg_job->reply->result = DID_OK;
1063        }
1064
1065        dma_pool_free(ha->s_dma_pool, mn, mn_dma);
1066
1067done_free_fw_buf:
1068        dma_free_coherent(&ha->pdev->dev, data_len, fw_buf, fw_dma);
1069
1070done_unmap_sg:
1071        dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
1072                bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1073
1074        if (!rval)
1075                bsg_job->job_done(bsg_job);
1076        return rval;
1077}
1078
1079static int
1080qla84xx_mgmt_cmd(struct fc_bsg_job *bsg_job)
1081{
1082        struct Scsi_Host *host = bsg_job->shost;
1083        scsi_qla_host_t *vha = shost_priv(host);
1084        struct qla_hw_data *ha = vha->hw;
1085        struct access_chip_84xx *mn = NULL;
1086        dma_addr_t mn_dma, mgmt_dma;
1087        void *mgmt_b = NULL;
1088        int rval = 0;
1089        struct qla_bsg_a84_mgmt *ql84_mgmt;
1090        uint32_t sg_cnt;
1091        uint32_t data_len = 0;
1092        uint32_t dma_direction = DMA_NONE;
1093
1094        if (!IS_QLA84XX(ha)) {
1095                ql_log(ql_log_warn, vha, 0x703a,
1096                    "Not 84xx, exiting.\n");
1097                return -EINVAL;
1098        }
1099
1100        mn = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &mn_dma);
1101        if (!mn) {
1102                ql_log(ql_log_warn, vha, 0x703c,
1103                    "DMA alloc failed for fw buffer.\n");
1104                return -ENOMEM;
1105        }
1106
1107        memset(mn, 0, sizeof(struct access_chip_84xx));
1108        mn->entry_type = ACCESS_CHIP_IOCB_TYPE;
1109        mn->entry_count = 1;
1110        ql84_mgmt = (void *)bsg_job->request + sizeof(struct fc_bsg_request);
1111        switch (ql84_mgmt->mgmt.cmd) {
1112        case QLA84_MGMT_READ_MEM:
1113        case QLA84_MGMT_GET_INFO:
1114                sg_cnt = dma_map_sg(&ha->pdev->dev,
1115                        bsg_job->reply_payload.sg_list,
1116                        bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1117                if (!sg_cnt) {
1118                        ql_log(ql_log_warn, vha, 0x703d,
1119                            "dma_map_sg returned %d for reply.\n", sg_cnt);
1120                        rval = -ENOMEM;
1121                        goto exit_mgmt;
1122                }
1123
1124                dma_direction = DMA_FROM_DEVICE;
1125
1126                if (sg_cnt != bsg_job->reply_payload.sg_cnt) {
1127                        ql_log(ql_log_warn, vha, 0x703e,
1128                            "DMA mapping resulted in different sg counts, "
1129                            "reply_sg_cnt: %x dma_reply_sg_cnt: %x.\n",
1130                            bsg_job->reply_payload.sg_cnt, sg_cnt);
1131                        rval = -EAGAIN;
1132                        goto done_unmap_sg;
1133                }
1134
1135                data_len = bsg_job->reply_payload.payload_len;
1136
1137                mgmt_b = dma_alloc_coherent(&ha->pdev->dev, data_len,
1138                    &mgmt_dma, GFP_KERNEL);
1139                if (!mgmt_b) {
1140                        ql_log(ql_log_warn, vha, 0x703f,
1141                            "DMA alloc failed for mgmt_b.\n");
1142                        rval = -ENOMEM;
1143                        goto done_unmap_sg;
1144                }
1145
1146                if (ql84_mgmt->mgmt.cmd == QLA84_MGMT_READ_MEM) {
1147                        mn->options = cpu_to_le16(ACO_DUMP_MEMORY);
1148                        mn->parameter1 =
1149                                cpu_to_le32(
1150                                ql84_mgmt->mgmt.mgmtp.u.mem.start_addr);
1151
1152                } else if (ql84_mgmt->mgmt.cmd == QLA84_MGMT_GET_INFO) {
1153                        mn->options = cpu_to_le16(ACO_REQUEST_INFO);
1154                        mn->parameter1 =
1155                                cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.info.type);
1156
1157                        mn->parameter2 =
1158                                cpu_to_le32(
1159                                ql84_mgmt->mgmt.mgmtp.u.info.context);
1160                }
1161                break;
1162
1163        case QLA84_MGMT_WRITE_MEM:
1164                sg_cnt = dma_map_sg(&ha->pdev->dev,
1165                        bsg_job->request_payload.sg_list,
1166                        bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1167
1168                if (!sg_cnt) {
1169                        ql_log(ql_log_warn, vha, 0x7040,
1170                            "dma_map_sg returned %d.\n", sg_cnt);
1171                        rval = -ENOMEM;
1172                        goto exit_mgmt;
1173                }
1174
1175                dma_direction = DMA_TO_DEVICE;
1176
1177                if (sg_cnt != bsg_job->request_payload.sg_cnt) {
1178                        ql_log(ql_log_warn, vha, 0x7041,
1179                            "DMA mapping resulted in different sg counts, "
1180                            "request_sg_cnt: %x dma_request_sg_cnt: %x.\n",
1181                            bsg_job->request_payload.sg_cnt, sg_cnt);
1182                        rval = -EAGAIN;
1183                        goto done_unmap_sg;
1184                }
1185
1186                data_len = bsg_job->request_payload.payload_len;
1187                mgmt_b = dma_alloc_coherent(&ha->pdev->dev, data_len,
1188                        &mgmt_dma, GFP_KERNEL);
1189                if (!mgmt_b) {
1190                        ql_log(ql_log_warn, vha, 0x7042,
1191                            "DMA alloc failed for mgmt_b.\n");
1192                        rval = -ENOMEM;
1193                        goto done_unmap_sg;
1194                }
1195
1196                sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1197                        bsg_job->request_payload.sg_cnt, mgmt_b, data_len);
1198
1199                mn->options = cpu_to_le16(ACO_LOAD_MEMORY);
1200                mn->parameter1 =
1201                        cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.mem.start_addr);
1202                break;
1203
1204        case QLA84_MGMT_CHNG_CONFIG:
1205                mn->options = cpu_to_le16(ACO_CHANGE_CONFIG_PARAM);
1206                mn->parameter1 =
1207                        cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.config.id);
1208
1209                mn->parameter2 =
1210                        cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.config.param0);
1211
1212                mn->parameter3 =
1213                        cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.config.param1);
1214                break;
1215
1216        default:
1217                rval = -EIO;
1218                goto exit_mgmt;
1219        }
1220
1221        if (ql84_mgmt->mgmt.cmd != QLA84_MGMT_CHNG_CONFIG) {
1222                mn->total_byte_cnt = cpu_to_le32(ql84_mgmt->mgmt.len);
1223                mn->dseg_count = cpu_to_le16(1);
1224                mn->dseg_address[0] = cpu_to_le32(LSD(mgmt_dma));
1225                mn->dseg_address[1] = cpu_to_le32(MSD(mgmt_dma));
1226                mn->dseg_length = cpu_to_le32(ql84_mgmt->mgmt.len);
1227        }
1228
1229        rval = qla2x00_issue_iocb(vha, mn, mn_dma, 0);
1230
1231        if (rval) {
1232                ql_log(ql_log_warn, vha, 0x7043,
1233                    "Vendor request 84xx mgmt failed.\n");
1234
1235                rval = (DID_ERROR << 16);
1236
1237        } else {
1238                ql_dbg(ql_dbg_user, vha, 0x7044,
1239                    "Vendor request 84xx mgmt completed.\n");
1240
1241                bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1242                bsg_job->reply->result = DID_OK;
1243
1244                if ((ql84_mgmt->mgmt.cmd == QLA84_MGMT_READ_MEM) ||
1245                        (ql84_mgmt->mgmt.cmd == QLA84_MGMT_GET_INFO)) {
1246                        bsg_job->reply->reply_payload_rcv_len =
1247                                bsg_job->reply_payload.payload_len;
1248
1249                        sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
1250                                bsg_job->reply_payload.sg_cnt, mgmt_b,
1251                                data_len);
1252                }
1253        }
1254
1255done_unmap_sg:
1256        if (mgmt_b)
1257                dma_free_coherent(&ha->pdev->dev, data_len, mgmt_b, mgmt_dma);
1258
1259        if (dma_direction == DMA_TO_DEVICE)
1260                dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
1261                        bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1262        else if (dma_direction == DMA_FROM_DEVICE)
1263                dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
1264                        bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1265
1266exit_mgmt:
1267        dma_pool_free(ha->s_dma_pool, mn, mn_dma);
1268
1269        if (!rval)
1270                bsg_job->job_done(bsg_job);
1271        return rval;
1272}
1273
1274static int
1275qla24xx_iidma(struct fc_bsg_job *bsg_job)
1276{
1277        struct Scsi_Host *host = bsg_job->shost;
1278        scsi_qla_host_t *vha = shost_priv(host);
1279        int rval = 0;
1280        struct qla_port_param *port_param = NULL;
1281        fc_port_t *fcport = NULL;
1282        int found = 0;
1283        uint16_t mb[MAILBOX_REGISTER_COUNT];
1284        uint8_t *rsp_ptr = NULL;
1285
1286        if (!IS_IIDMA_CAPABLE(vha->hw)) {
1287                ql_log(ql_log_info, vha, 0x7046, "iiDMA not supported.\n");
1288                return -EINVAL;
1289        }
1290
1291        port_param = (void *)bsg_job->request + sizeof(struct fc_bsg_request);
1292        if (port_param->fc_scsi_addr.dest_type != EXT_DEF_TYPE_WWPN) {
1293                ql_log(ql_log_warn, vha, 0x7048,
1294                    "Invalid destination type.\n");
1295                return -EINVAL;
1296        }
1297
1298        list_for_each_entry(fcport, &vha->vp_fcports, list) {
1299                if (fcport->port_type != FCT_TARGET)
1300                        continue;
1301
1302                if (memcmp(port_param->fc_scsi_addr.dest_addr.wwpn,
1303                        fcport->port_name, sizeof(fcport->port_name)))
1304                        continue;
1305
1306                found = 1;
1307                break;
1308        }
1309
1310        if (!found) {
1311                ql_log(ql_log_warn, vha, 0x7049,
1312                    "Failed to find port.\n");
1313                return -EINVAL;
1314        }
1315
1316        if (atomic_read(&fcport->state) != FCS_ONLINE) {
1317                ql_log(ql_log_warn, vha, 0x704a,
1318                    "Port is not online.\n");
1319                return -EINVAL;
1320        }
1321
1322        if (fcport->flags & FCF_LOGIN_NEEDED) {
1323                ql_log(ql_log_warn, vha, 0x704b,
1324                    "Remote port not logged in flags = 0x%x.\n", fcport->flags);
1325                return -EINVAL;
1326        }
1327
1328        if (port_param->mode)
1329                rval = qla2x00_set_idma_speed(vha, fcport->loop_id,
1330                        port_param->speed, mb);
1331        else
1332                rval = qla2x00_get_idma_speed(vha, fcport->loop_id,
1333                        &port_param->speed, mb);
1334
1335        if (rval) {
1336                ql_log(ql_log_warn, vha, 0x704c,
1337                    "iIDMA cmd failed for %8phN -- "
1338                    "%04x %x %04x %04x.\n", fcport->port_name,
1339                    rval, fcport->fp_speed, mb[0], mb[1]);
1340                rval = (DID_ERROR << 16);
1341        } else {
1342                if (!port_param->mode) {
1343                        bsg_job->reply_len = sizeof(struct fc_bsg_reply) +
1344                                sizeof(struct qla_port_param);
1345
1346                        rsp_ptr = ((uint8_t *)bsg_job->reply) +
1347                                sizeof(struct fc_bsg_reply);
1348
1349                        memcpy(rsp_ptr, port_param,
1350                                sizeof(struct qla_port_param));
1351                }
1352
1353                bsg_job->reply->result = DID_OK;
1354                bsg_job->job_done(bsg_job);
1355        }
1356
1357        return rval;
1358}
1359
1360static int
1361qla2x00_optrom_setup(struct fc_bsg_job *bsg_job, scsi_qla_host_t *vha,
1362        uint8_t is_update)
1363{
1364        uint32_t start = 0;
1365        int valid = 0;
1366        struct qla_hw_data *ha = vha->hw;
1367
1368        if (unlikely(pci_channel_offline(ha->pdev)))
1369                return -EINVAL;
1370
1371        start = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
1372        if (start > ha->optrom_size) {
1373                ql_log(ql_log_warn, vha, 0x7055,
1374                    "start %d > optrom_size %d.\n", start, ha->optrom_size);
1375                return -EINVAL;
1376        }
1377
1378        if (ha->optrom_state != QLA_SWAITING) {
1379                ql_log(ql_log_info, vha, 0x7056,
1380                    "optrom_state %d.\n", ha->optrom_state);
1381                return -EBUSY;
1382        }
1383
1384        ha->optrom_region_start = start;
1385        ql_dbg(ql_dbg_user, vha, 0x7057, "is_update=%d.\n", is_update);
1386        if (is_update) {
1387                if (ha->optrom_size == OPTROM_SIZE_2300 && start == 0)
1388                        valid = 1;
1389                else if (start == (ha->flt_region_boot * 4) ||
1390                    start == (ha->flt_region_fw * 4))
1391                        valid = 1;
1392                else if (IS_QLA24XX_TYPE(ha) || IS_QLA25XX(ha) ||
1393                    IS_CNA_CAPABLE(ha) || IS_QLA2031(ha))
1394                        valid = 1;
1395                if (!valid) {
1396                        ql_log(ql_log_warn, vha, 0x7058,
1397                            "Invalid start region 0x%x/0x%x.\n", start,
1398                            bsg_job->request_payload.payload_len);
1399                        return -EINVAL;
1400                }
1401
1402                ha->optrom_region_size = start +
1403                    bsg_job->request_payload.payload_len > ha->optrom_size ?
1404                    ha->optrom_size - start :
1405                    bsg_job->request_payload.payload_len;
1406                ha->optrom_state = QLA_SWRITING;
1407        } else {
1408                ha->optrom_region_size = start +
1409                    bsg_job->reply_payload.payload_len > ha->optrom_size ?
1410                    ha->optrom_size - start :
1411                    bsg_job->reply_payload.payload_len;
1412                ha->optrom_state = QLA_SREADING;
1413        }
1414
1415        ha->optrom_buffer = vmalloc(ha->optrom_region_size);
1416        if (!ha->optrom_buffer) {
1417                ql_log(ql_log_warn, vha, 0x7059,
1418                    "Read: Unable to allocate memory for optrom retrieval "
1419                    "(%x)\n", ha->optrom_region_size);
1420
1421                ha->optrom_state = QLA_SWAITING;
1422                return -ENOMEM;
1423        }
1424
1425        memset(ha->optrom_buffer, 0, ha->optrom_region_size);
1426        return 0;
1427}
1428
1429static int
1430qla2x00_read_optrom(struct fc_bsg_job *bsg_job)
1431{
1432        struct Scsi_Host *host = bsg_job->shost;
1433        scsi_qla_host_t *vha = shost_priv(host);
1434        struct qla_hw_data *ha = vha->hw;
1435        int rval = 0;
1436
1437        if (ha->flags.nic_core_reset_hdlr_active)
1438                return -EBUSY;
1439
1440        rval = qla2x00_optrom_setup(bsg_job, vha, 0);
1441        if (rval)
1442                return rval;
1443
1444        ha->isp_ops->read_optrom(vha, ha->optrom_buffer,
1445            ha->optrom_region_start, ha->optrom_region_size);
1446
1447        sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
1448            bsg_job->reply_payload.sg_cnt, ha->optrom_buffer,
1449            ha->optrom_region_size);
1450
1451        bsg_job->reply->reply_payload_rcv_len = ha->optrom_region_size;
1452        bsg_job->reply->result = DID_OK;
1453        vfree(ha->optrom_buffer);
1454        ha->optrom_buffer = NULL;
1455        ha->optrom_state = QLA_SWAITING;
1456        bsg_job->job_done(bsg_job);
1457        return rval;
1458}
1459
1460static int
1461qla2x00_update_optrom(struct fc_bsg_job *bsg_job)
1462{
1463        struct Scsi_Host *host = bsg_job->shost;
1464        scsi_qla_host_t *vha = shost_priv(host);
1465        struct qla_hw_data *ha = vha->hw;
1466        int rval = 0;
1467
1468        rval = qla2x00_optrom_setup(bsg_job, vha, 1);
1469        if (rval)
1470                return rval;
1471
1472        /* Set the isp82xx_no_md_cap not to capture minidump */
1473        ha->flags.isp82xx_no_md_cap = 1;
1474
1475        sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1476            bsg_job->request_payload.sg_cnt, ha->optrom_buffer,
1477            ha->optrom_region_size);
1478
1479        ha->isp_ops->write_optrom(vha, ha->optrom_buffer,
1480            ha->optrom_region_start, ha->optrom_region_size);
1481
1482        bsg_job->reply->result = DID_OK;
1483        vfree(ha->optrom_buffer);
1484        ha->optrom_buffer = NULL;
1485        ha->optrom_state = QLA_SWAITING;
1486        bsg_job->job_done(bsg_job);
1487        return rval;
1488}
1489
1490static int
1491qla2x00_update_fru_versions(struct fc_bsg_job *bsg_job)
1492{
1493        struct Scsi_Host *host = bsg_job->shost;
1494        scsi_qla_host_t *vha = shost_priv(host);
1495        struct qla_hw_data *ha = vha->hw;
1496        int rval = 0;
1497        uint8_t bsg[DMA_POOL_SIZE];
1498        struct qla_image_version_list *list = (void *)bsg;
1499        struct qla_image_version *image;
1500        uint32_t count;
1501        dma_addr_t sfp_dma;
1502        void *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1503        if (!sfp) {
1504                bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1505                    EXT_STATUS_NO_MEMORY;
1506                goto done;
1507        }
1508
1509        sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1510            bsg_job->request_payload.sg_cnt, list, sizeof(bsg));
1511
1512        image = list->version;
1513        count = list->count;
1514        while (count--) {
1515                memcpy(sfp, &image->field_info, sizeof(image->field_info));
1516                rval = qla2x00_write_sfp(vha, sfp_dma, sfp,
1517                    image->field_address.device, image->field_address.offset,
1518                    sizeof(image->field_info), image->field_address.option);
1519                if (rval) {
1520                        bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1521                            EXT_STATUS_MAILBOX;
1522                        goto dealloc;
1523                }
1524                image++;
1525        }
1526
1527        bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1528
1529dealloc:
1530        dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1531
1532done:
1533        bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1534        bsg_job->reply->result = DID_OK << 16;
1535        bsg_job->job_done(bsg_job);
1536
1537        return 0;
1538}
1539
1540static int
1541qla2x00_read_fru_status(struct fc_bsg_job *bsg_job)
1542{
1543        struct Scsi_Host *host = bsg_job->shost;
1544        scsi_qla_host_t *vha = shost_priv(host);
1545        struct qla_hw_data *ha = vha->hw;
1546        int rval = 0;
1547        uint8_t bsg[DMA_POOL_SIZE];
1548        struct qla_status_reg *sr = (void *)bsg;
1549        dma_addr_t sfp_dma;
1550        uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1551        if (!sfp) {
1552                bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1553                    EXT_STATUS_NO_MEMORY;
1554                goto done;
1555        }
1556
1557        sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1558            bsg_job->request_payload.sg_cnt, sr, sizeof(*sr));
1559
1560        rval = qla2x00_read_sfp(vha, sfp_dma, sfp,
1561            sr->field_address.device, sr->field_address.offset,
1562            sizeof(sr->status_reg), sr->field_address.option);
1563        sr->status_reg = *sfp;
1564
1565        if (rval) {
1566                bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1567                    EXT_STATUS_MAILBOX;
1568                goto dealloc;
1569        }
1570
1571        sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
1572            bsg_job->reply_payload.sg_cnt, sr, sizeof(*sr));
1573
1574        bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1575
1576dealloc:
1577        dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1578
1579done:
1580        bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1581        bsg_job->reply->reply_payload_rcv_len = sizeof(*sr);
1582        bsg_job->reply->result = DID_OK << 16;
1583        bsg_job->job_done(bsg_job);
1584
1585        return 0;
1586}
1587
1588static int
1589qla2x00_write_fru_status(struct fc_bsg_job *bsg_job)
1590{
1591        struct Scsi_Host *host = bsg_job->shost;
1592        scsi_qla_host_t *vha = shost_priv(host);
1593        struct qla_hw_data *ha = vha->hw;
1594        int rval = 0;
1595        uint8_t bsg[DMA_POOL_SIZE];
1596        struct qla_status_reg *sr = (void *)bsg;
1597        dma_addr_t sfp_dma;
1598        uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1599        if (!sfp) {
1600                bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1601                    EXT_STATUS_NO_MEMORY;
1602                goto done;
1603        }
1604
1605        sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1606            bsg_job->request_payload.sg_cnt, sr, sizeof(*sr));
1607
1608        *sfp = sr->status_reg;
1609        rval = qla2x00_write_sfp(vha, sfp_dma, sfp,
1610            sr->field_address.device, sr->field_address.offset,
1611            sizeof(sr->status_reg), sr->field_address.option);
1612
1613        if (rval) {
1614                bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1615                    EXT_STATUS_MAILBOX;
1616                goto dealloc;
1617        }
1618
1619        bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1620
1621dealloc:
1622        dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1623
1624done:
1625        bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1626        bsg_job->reply->result = DID_OK << 16;
1627        bsg_job->job_done(bsg_job);
1628
1629        return 0;
1630}
1631
1632static int
1633qla2x00_write_i2c(struct fc_bsg_job *bsg_job)
1634{
1635        struct Scsi_Host *host = bsg_job->shost;
1636        scsi_qla_host_t *vha = shost_priv(host);
1637        struct qla_hw_data *ha = vha->hw;
1638        int rval = 0;
1639        uint8_t bsg[DMA_POOL_SIZE];
1640        struct qla_i2c_access *i2c = (void *)bsg;
1641        dma_addr_t sfp_dma;
1642        uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1643        if (!sfp) {
1644                bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1645                    EXT_STATUS_NO_MEMORY;
1646                goto done;
1647        }
1648
1649        sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1650            bsg_job->request_payload.sg_cnt, i2c, sizeof(*i2c));
1651
1652        memcpy(sfp, i2c->buffer, i2c->length);
1653        rval = qla2x00_write_sfp(vha, sfp_dma, sfp,
1654            i2c->device, i2c->offset, i2c->length, i2c->option);
1655
1656        if (rval) {
1657                bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1658                    EXT_STATUS_MAILBOX;
1659                goto dealloc;
1660        }
1661
1662        bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1663
1664dealloc:
1665        dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1666
1667done:
1668        bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1669        bsg_job->reply->result = DID_OK << 16;
1670        bsg_job->job_done(bsg_job);
1671
1672        return 0;
1673}
1674
1675static int
1676qla2x00_read_i2c(struct fc_bsg_job *bsg_job)
1677{
1678        struct Scsi_Host *host = bsg_job->shost;
1679        scsi_qla_host_t *vha = shost_priv(host);
1680        struct qla_hw_data *ha = vha->hw;
1681        int rval = 0;
1682        uint8_t bsg[DMA_POOL_SIZE];
1683        struct qla_i2c_access *i2c = (void *)bsg;
1684        dma_addr_t sfp_dma;
1685        uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1686        if (!sfp) {
1687                bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1688                    EXT_STATUS_NO_MEMORY;
1689                goto done;
1690        }
1691
1692        sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1693            bsg_job->request_payload.sg_cnt, i2c, sizeof(*i2c));
1694
1695        rval = qla2x00_read_sfp(vha, sfp_dma, sfp,
1696                i2c->device, i2c->offset, i2c->length, i2c->option);
1697
1698        if (rval) {
1699                bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1700                    EXT_STATUS_MAILBOX;
1701                goto dealloc;
1702        }
1703
1704        memcpy(i2c->buffer, sfp, i2c->length);
1705        sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
1706            bsg_job->reply_payload.sg_cnt, i2c, sizeof(*i2c));
1707
1708        bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1709
1710dealloc:
1711        dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1712
1713done:
1714        bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1715        bsg_job->reply->reply_payload_rcv_len = sizeof(*i2c);
1716        bsg_job->reply->result = DID_OK << 16;
1717        bsg_job->job_done(bsg_job);
1718
1719        return 0;
1720}
1721
1722static int
1723qla24xx_process_bidir_cmd(struct fc_bsg_job *bsg_job)
1724{
1725        struct Scsi_Host *host = bsg_job->shost;
1726        scsi_qla_host_t *vha = shost_priv(host);
1727        struct qla_hw_data *ha = vha->hw;
1728        uint16_t thread_id;
1729        uint32_t rval = EXT_STATUS_OK;
1730        uint16_t req_sg_cnt = 0;
1731        uint16_t rsp_sg_cnt = 0;
1732        uint16_t nextlid = 0;
1733        uint32_t tot_dsds;
1734        srb_t *sp = NULL;
1735        uint32_t req_data_len = 0;
1736        uint32_t rsp_data_len = 0;
1737
1738        /* Check the type of the adapter */
1739        if (!IS_BIDI_CAPABLE(ha)) {
1740                ql_log(ql_log_warn, vha, 0x70a0,
1741                        "This adapter is not supported\n");
1742                rval = EXT_STATUS_NOT_SUPPORTED;
1743                goto done;
1744        }
1745
1746        if (test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
1747                test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) ||
1748                test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
1749                rval =  EXT_STATUS_BUSY;
1750                goto done;
1751        }
1752
1753        /* Check if host is online */
1754        if (!vha->flags.online) {
1755                ql_log(ql_log_warn, vha, 0x70a1,
1756                        "Host is not online\n");
1757                rval = EXT_STATUS_DEVICE_OFFLINE;
1758                goto done;
1759        }
1760
1761        /* Check if cable is plugged in or not */
1762        if (vha->device_flags & DFLG_NO_CABLE) {
1763                ql_log(ql_log_warn, vha, 0x70a2,
1764                        "Cable is unplugged...\n");
1765                rval = EXT_STATUS_INVALID_CFG;
1766                goto done;
1767        }
1768
1769        /* Check if the switch is connected or not */
1770        if (ha->current_topology != ISP_CFG_F) {
1771                ql_log(ql_log_warn, vha, 0x70a3,
1772                        "Host is not connected to the switch\n");
1773                rval = EXT_STATUS_INVALID_CFG;
1774                goto done;
1775        }
1776
1777        /* Check if operating mode is P2P */
1778        if (ha->operating_mode != P2P) {
1779                ql_log(ql_log_warn, vha, 0x70a4,
1780                    "Host is operating mode is not P2p\n");
1781                rval = EXT_STATUS_INVALID_CFG;
1782                goto done;
1783        }
1784
1785        thread_id = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
1786
1787        mutex_lock(&ha->selflogin_lock);
1788        if (vha->self_login_loop_id == 0) {
1789                /* Initialize all required  fields of fcport */
1790                vha->bidir_fcport.vha = vha;
1791                vha->bidir_fcport.d_id.b.al_pa = vha->d_id.b.al_pa;
1792                vha->bidir_fcport.d_id.b.area = vha->d_id.b.area;
1793                vha->bidir_fcport.d_id.b.domain = vha->d_id.b.domain;
1794                vha->bidir_fcport.loop_id = vha->loop_id;
1795
1796                if (qla2x00_fabric_login(vha, &(vha->bidir_fcport), &nextlid)) {
1797                        ql_log(ql_log_warn, vha, 0x70a7,
1798                            "Failed to login port %06X for bidirectional IOCB\n",
1799                            vha->bidir_fcport.d_id.b24);
1800                        mutex_unlock(&ha->selflogin_lock);
1801                        rval = EXT_STATUS_MAILBOX;
1802                        goto done;
1803                }
1804                vha->self_login_loop_id = nextlid - 1;
1805
1806        }
1807        /* Assign the self login loop id to fcport */
1808        mutex_unlock(&ha->selflogin_lock);
1809
1810        vha->bidir_fcport.loop_id = vha->self_login_loop_id;
1811
1812        req_sg_cnt = dma_map_sg(&ha->pdev->dev,
1813                bsg_job->request_payload.sg_list,
1814                bsg_job->request_payload.sg_cnt,
1815                DMA_TO_DEVICE);
1816
1817        if (!req_sg_cnt) {
1818                rval = EXT_STATUS_NO_MEMORY;
1819                goto done;
1820        }
1821
1822        rsp_sg_cnt = dma_map_sg(&ha->pdev->dev,
1823                bsg_job->reply_payload.sg_list, bsg_job->reply_payload.sg_cnt,
1824                DMA_FROM_DEVICE);
1825
1826        if (!rsp_sg_cnt) {
1827                rval = EXT_STATUS_NO_MEMORY;
1828                goto done_unmap_req_sg;
1829        }
1830
1831        if ((req_sg_cnt !=  bsg_job->request_payload.sg_cnt) ||
1832                (rsp_sg_cnt != bsg_job->reply_payload.sg_cnt)) {
1833                ql_dbg(ql_dbg_user, vha, 0x70a9,
1834                    "Dma mapping resulted in different sg counts "
1835                    "[request_sg_cnt: %x dma_request_sg_cnt: %x reply_sg_cnt: "
1836                    "%x dma_reply_sg_cnt: %x]\n",
1837                    bsg_job->request_payload.sg_cnt, req_sg_cnt,
1838                    bsg_job->reply_payload.sg_cnt, rsp_sg_cnt);
1839                rval = EXT_STATUS_NO_MEMORY;
1840                goto done_unmap_sg;
1841        }
1842
1843        if (req_data_len != rsp_data_len) {
1844                rval = EXT_STATUS_BUSY;
1845                ql_log(ql_log_warn, vha, 0x70aa,
1846                    "req_data_len != rsp_data_len\n");
1847                goto done_unmap_sg;
1848        }
1849
1850        req_data_len = bsg_job->request_payload.payload_len;
1851        rsp_data_len = bsg_job->reply_payload.payload_len;
1852
1853
1854        /* Alloc SRB structure */
1855        sp = qla2x00_get_sp(vha, &(vha->bidir_fcport), GFP_KERNEL);
1856        if (!sp) {
1857                ql_dbg(ql_dbg_user, vha, 0x70ac,
1858                    "Alloc SRB structure failed\n");
1859                rval = EXT_STATUS_NO_MEMORY;
1860                goto done_unmap_sg;
1861        }
1862
1863        /*Populate srb->ctx with bidir ctx*/
1864        sp->u.bsg_job = bsg_job;
1865        sp->free = qla2x00_bsg_sp_free;
1866        sp->type = SRB_BIDI_CMD;
1867        sp->done = qla2x00_bsg_job_done;
1868
1869        /* Add the read and write sg count */
1870        tot_dsds = rsp_sg_cnt + req_sg_cnt;
1871
1872        rval = qla2x00_start_bidir(sp, vha, tot_dsds);
1873        if (rval != EXT_STATUS_OK)
1874                goto done_free_srb;
1875        /* the bsg request  will be completed in the interrupt handler */
1876        return rval;
1877
1878done_free_srb:
1879        mempool_free(sp, ha->srb_mempool);
1880done_unmap_sg:
1881        dma_unmap_sg(&ha->pdev->dev,
1882            bsg_job->reply_payload.sg_list,
1883            bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1884done_unmap_req_sg:
1885        dma_unmap_sg(&ha->pdev->dev,
1886            bsg_job->request_payload.sg_list,
1887            bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1888done:
1889
1890        /* Return an error vendor specific response
1891         * and complete the bsg request
1892         */
1893        bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
1894        bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1895        bsg_job->reply->reply_payload_rcv_len = 0;
1896        bsg_job->reply->result = (DID_OK) << 16;
1897        bsg_job->job_done(bsg_job);
1898        /* Always return success, vendor rsp carries correct status */
1899        return 0;
1900}
1901
1902static int
1903qlafx00_mgmt_cmd(struct fc_bsg_job *bsg_job)
1904{
1905        struct Scsi_Host *host = bsg_job->shost;
1906        scsi_qla_host_t *vha = shost_priv(host);
1907        struct qla_hw_data *ha = vha->hw;
1908        int rval = (DRIVER_ERROR << 16);
1909        struct qla_mt_iocb_rqst_fx00 *piocb_rqst;
1910        srb_t *sp;
1911        int req_sg_cnt = 0, rsp_sg_cnt = 0;
1912        struct fc_port *fcport;
1913        char  *type = "FC_BSG_HST_FX_MGMT";
1914
1915        /* Copy the IOCB specific information */
1916        piocb_rqst = (struct qla_mt_iocb_rqst_fx00 *)
1917            &bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
1918
1919        /* Dump the vendor information */
1920        ql_dump_buffer(ql_dbg_user + ql_dbg_verbose , vha, 0x70cf,
1921            (uint8_t *)piocb_rqst, sizeof(struct qla_mt_iocb_rqst_fx00));
1922
1923        if (!vha->flags.online) {
1924                ql_log(ql_log_warn, vha, 0x70d0,
1925                    "Host is not online.\n");
1926                rval = -EIO;
1927                goto done;
1928        }
1929
1930        if (piocb_rqst->flags & SRB_FXDISC_REQ_DMA_VALID) {
1931                req_sg_cnt = dma_map_sg(&ha->pdev->dev,
1932                    bsg_job->request_payload.sg_list,
1933                    bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1934                if (!req_sg_cnt) {
1935                        ql_log(ql_log_warn, vha, 0x70c7,
1936                            "dma_map_sg return %d for request\n", req_sg_cnt);
1937                        rval = -ENOMEM;
1938                        goto done;
1939                }
1940        }
1941
1942        if (piocb_rqst->flags & SRB_FXDISC_RESP_DMA_VALID) {
1943                rsp_sg_cnt = dma_map_sg(&ha->pdev->dev,
1944                    bsg_job->reply_payload.sg_list,
1945                    bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1946                if (!rsp_sg_cnt) {
1947                        ql_log(ql_log_warn, vha, 0x70c8,
1948                            "dma_map_sg return %d for reply\n", rsp_sg_cnt);
1949                        rval = -ENOMEM;
1950                        goto done_unmap_req_sg;
1951                }
1952        }
1953
1954        ql_dbg(ql_dbg_user, vha, 0x70c9,
1955            "request_sg_cnt: %x dma_request_sg_cnt: %x reply_sg_cnt:%x "
1956            "dma_reply_sg_cnt: %x\n", bsg_job->request_payload.sg_cnt,
1957            req_sg_cnt, bsg_job->reply_payload.sg_cnt, rsp_sg_cnt);
1958
1959        /* Allocate a dummy fcport structure, since functions preparing the
1960         * IOCB and mailbox command retrieves port specific information
1961         * from fcport structure. For Host based ELS commands there will be
1962         * no fcport structure allocated
1963         */
1964        fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
1965        if (!fcport) {
1966                ql_log(ql_log_warn, vha, 0x70ca,
1967                    "Failed to allocate fcport.\n");
1968                rval = -ENOMEM;
1969                goto done_unmap_rsp_sg;
1970        }
1971
1972        /* Alloc SRB structure */
1973        sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1974        if (!sp) {
1975                ql_log(ql_log_warn, vha, 0x70cb,
1976                    "qla2x00_get_sp failed.\n");
1977                rval = -ENOMEM;
1978                goto done_free_fcport;
1979        }
1980
1981        /* Initialize all required  fields of fcport */
1982        fcport->vha = vha;
1983        fcport->loop_id = piocb_rqst->dataword;
1984
1985        sp->type = SRB_FXIOCB_BCMD;
1986        sp->name = "bsg_fx_mgmt";
1987        sp->iocbs = qla24xx_calc_ct_iocbs(req_sg_cnt + rsp_sg_cnt);
1988        sp->u.bsg_job = bsg_job;
1989        sp->free = qla2x00_bsg_sp_free;
1990        sp->done = qla2x00_bsg_job_done;
1991
1992        ql_dbg(ql_dbg_user, vha, 0x70cc,
1993            "bsg rqst type: %s fx_mgmt_type: %x id=%x\n",
1994            type, piocb_rqst->func_type, fcport->loop_id);
1995
1996        rval = qla2x00_start_sp(sp);
1997        if (rval != QLA_SUCCESS) {
1998                ql_log(ql_log_warn, vha, 0x70cd,
1999                    "qla2x00_start_sp failed=%d.\n", rval);
2000                mempool_free(sp, ha->srb_mempool);
2001                rval = -EIO;
2002                goto done_free_fcport;
2003        }
2004        return rval;
2005
2006done_free_fcport:
2007        kfree(fcport);
2008
2009done_unmap_rsp_sg:
2010        if (piocb_rqst->flags & SRB_FXDISC_RESP_DMA_VALID)
2011                dma_unmap_sg(&ha->pdev->dev,
2012                    bsg_job->reply_payload.sg_list,
2013                    bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
2014done_unmap_req_sg:
2015        if (piocb_rqst->flags & SRB_FXDISC_REQ_DMA_VALID)
2016                dma_unmap_sg(&ha->pdev->dev,
2017                    bsg_job->request_payload.sg_list,
2018                    bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
2019
2020done:
2021        return rval;
2022}
2023
2024static int
2025qla2x00_process_vendor_specific(struct fc_bsg_job *bsg_job)
2026{
2027        switch (bsg_job->request->rqst_data.h_vendor.vendor_cmd[0]) {
2028        case QL_VND_LOOPBACK:
2029                return qla2x00_process_loopback(bsg_job);
2030
2031        case QL_VND_A84_RESET:
2032                return qla84xx_reset(bsg_job);
2033
2034        case QL_VND_A84_UPDATE_FW:
2035                return qla84xx_updatefw(bsg_job);
2036
2037        case QL_VND_A84_MGMT_CMD:
2038                return qla84xx_mgmt_cmd(bsg_job);
2039
2040        case QL_VND_IIDMA:
2041                return qla24xx_iidma(bsg_job);
2042
2043        case QL_VND_FCP_PRIO_CFG_CMD:
2044                return qla24xx_proc_fcp_prio_cfg_cmd(bsg_job);
2045
2046        case QL_VND_READ_FLASH:
2047                return qla2x00_read_optrom(bsg_job);
2048
2049        case QL_VND_UPDATE_FLASH:
2050                return qla2x00_update_optrom(bsg_job);
2051
2052        case QL_VND_SET_FRU_VERSION:
2053                return qla2x00_update_fru_versions(bsg_job);
2054
2055        case QL_VND_READ_FRU_STATUS:
2056                return qla2x00_read_fru_status(bsg_job);
2057
2058        case QL_VND_WRITE_FRU_STATUS:
2059                return qla2x00_write_fru_status(bsg_job);
2060
2061        case QL_VND_WRITE_I2C:
2062                return qla2x00_write_i2c(bsg_job);
2063
2064        case QL_VND_READ_I2C:
2065                return qla2x00_read_i2c(bsg_job);
2066
2067        case QL_VND_DIAG_IO_CMD:
2068                return qla24xx_process_bidir_cmd(bsg_job);
2069
2070        case QL_VND_FX00_MGMT_CMD:
2071                return qlafx00_mgmt_cmd(bsg_job);
2072        default:
2073                return -ENOSYS;
2074        }
2075}
2076
2077int
2078qla24xx_bsg_request(struct fc_bsg_job *bsg_job)
2079{
2080        int ret = -EINVAL;
2081        struct fc_rport *rport;
2082        fc_port_t *fcport = NULL;
2083        struct Scsi_Host *host;
2084        scsi_qla_host_t *vha;
2085
2086        /* In case no data transferred. */
2087        bsg_job->reply->reply_payload_rcv_len = 0;
2088
2089        if (bsg_job->request->msgcode == FC_BSG_RPT_ELS) {
2090                rport = bsg_job->rport;
2091                fcport = *(fc_port_t **) rport->dd_data;
2092                host = rport_to_shost(rport);
2093                vha = shost_priv(host);
2094        } else {
2095                host = bsg_job->shost;
2096                vha = shost_priv(host);
2097        }
2098
2099        if (qla2x00_reset_active(vha)) {
2100                ql_dbg(ql_dbg_user, vha, 0x709f,
2101                    "BSG: ISP abort active/needed -- cmd=%d.\n",
2102                    bsg_job->request->msgcode);
2103                return -EBUSY;
2104        }
2105
2106        ql_dbg(ql_dbg_user, vha, 0x7000,
2107            "Entered %s msgcode=0x%x.\n", __func__, bsg_job->request->msgcode);
2108
2109        switch (bsg_job->request->msgcode) {
2110        case FC_BSG_RPT_ELS:
2111        case FC_BSG_HST_ELS_NOLOGIN:
2112                ret = qla2x00_process_els(bsg_job);
2113                break;
2114        case FC_BSG_HST_CT:
2115                ret = qla2x00_process_ct(bsg_job);
2116                break;
2117        case FC_BSG_HST_VENDOR:
2118                ret = qla2x00_process_vendor_specific(bsg_job);
2119                break;
2120        case FC_BSG_HST_ADD_RPORT:
2121        case FC_BSG_HST_DEL_RPORT:
2122        case FC_BSG_RPT_CT:
2123        default:
2124                ql_log(ql_log_warn, vha, 0x705a, "Unsupported BSG request.\n");
2125                break;
2126        }
2127        return ret;
2128}
2129
2130int
2131qla24xx_bsg_timeout(struct fc_bsg_job *bsg_job)
2132{
2133        scsi_qla_host_t *vha = shost_priv(bsg_job->shost);
2134        struct qla_hw_data *ha = vha->hw;
2135        srb_t *sp;
2136        int cnt, que;
2137        unsigned long flags;
2138        struct req_que *req;
2139
2140        /* find the bsg job from the active list of commands */
2141        spin_lock_irqsave(&ha->hardware_lock, flags);
2142        for (que = 0; que < ha->max_req_queues; que++) {
2143                req = ha->req_q_map[que];
2144                if (!req)
2145                        continue;
2146
2147                for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
2148                        sp = req->outstanding_cmds[cnt];
2149                        if (sp) {
2150                                if (((sp->type == SRB_CT_CMD) ||
2151                                        (sp->type == SRB_ELS_CMD_HST) ||
2152                                        (sp->type == SRB_FXIOCB_BCMD))
2153                                        && (sp->u.bsg_job == bsg_job)) {
2154                                        req->outstanding_cmds[cnt] = NULL;
2155                                        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2156                                        if (ha->isp_ops->abort_command(sp)) {
2157                                                ql_log(ql_log_warn, vha, 0x7089,
2158                                                    "mbx abort_command "
2159                                                    "failed.\n");
2160                                                bsg_job->req->errors =
2161                                                bsg_job->reply->result = -EIO;
2162                                        } else {
2163                                                ql_dbg(ql_dbg_user, vha, 0x708a,
2164                                                    "mbx abort_command "
2165                                                    "success.\n");
2166                                                bsg_job->req->errors =
2167                                                bsg_job->reply->result = 0;
2168                                        }
2169                                        spin_lock_irqsave(&ha->hardware_lock, flags);
2170                                        goto done;
2171                                }
2172                        }
2173                }
2174        }
2175        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2176        ql_log(ql_log_info, vha, 0x708b, "SRB not found to abort.\n");
2177        bsg_job->req->errors = bsg_job->reply->result = -ENXIO;
2178        return 0;
2179
2180done:
2181        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2182        sp->free(vha, sp);
2183        return 0;
2184}
2185