drivers/scsi/qla2xxx/qla_bsg.c

   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 */
  14 void
  15 qla2x00_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
  26 void
  27 qla2x00_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
  63 int
  64 qla24xx_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
 118 static int
 119 qla24xx_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_QLA82XX(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         }
 238 exit_fcp_prio_cfg:
 239         if (!ret)
 240                 bsg_job->job_done(bsg_job);
 241         return ret;
 242 }
 243
 244 static int
 245 qla2x00_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
 394 done_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
 401 done_free_fcport:
 402         if (bsg_job->request->msgcode == FC_BSG_RPT_ELS)
 403                 kfree(fcport);
 404 done:
 405         return rval;
 406 }
 407
 408 inline uint16_t
 409 qla24xx_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
 422 static int
 423 qla2x00_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
 541 done_free_fcport:
 542         kfree(fcport);
 543 done_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);
 548 done:
 549         return rval;
 550 }
 551
 552 /* Disable loopback mode */
 553 static inline int
 554 qla81xx_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))
 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         }
 616 done_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  */
 624 static inline int
 625 qla81xx_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         struct qla_hw_data *ha = vha->hw;
 631
 632         if (!IS_QLA81XX(ha) && !IS_QLA8031(ha))
 633                 goto done_set_internal;
 634
 635         if (mode == INTERNAL_LOOPBACK)
 636                 new_config[0] = config[0] | (ENABLE_INTERNAL_LOOPBACK << 1);
 637         else if (mode == EXTERNAL_LOOPBACK)
 638                 new_config[0] = config[0] | (ENABLE_EXTERNAL_LOOPBACK << 1);
 639         ql_dbg(ql_dbg_user, vha, 0x70be,
 640              "new_config[0]=%02x\n", (new_config[0] & INTERNAL_LOOPBACK_MASK));
 641
 642         memcpy(&new_config[1], &config[1], sizeof(uint16_t) * 3);
 643
 644         ha->notify_dcbx_comp = 1;
 645         ret = qla81xx_set_port_config(vha, new_config);
 646         if (ret != QLA_SUCCESS) {
 647                 ql_log(ql_log_warn, vha, 0x7021,
 648                     "set port config failed.\n");
 649                 ha->notify_dcbx_comp = 0;
 650                 rval = -EINVAL;
 651                 goto done_set_internal;
 652         }
 653
 654         /* Wait for DCBX complete event */
 655         if (!wait_for_completion_timeout(&ha->dcbx_comp,
 656             (DCBX_COMP_TIMEOUT * HZ))) {
 657                 ql_dbg(ql_dbg_user, vha, 0x7022,
 658                     "DCBX completion not received.\n");
 659                 ret = qla81xx_reset_loopback_mode(vha, new_config, 0, 0);
 660                 /*
 661                  * If the reset of the loopback mode doesn't work take a FCoE
 662                  * dump and reset the chip.
 663                  */
 664                 if (ret) {
 665                         ha->isp_ops->fw_dump(vha, 0);
 666                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 667                 }
 668                 rval = -EINVAL;
 669         } else {
 670                 if (ha->flags.idc_compl_status) {
 671                         ql_dbg(ql_dbg_user, vha, 0x70c3,
 672                             "Bad status in IDC Completion AEN\n");
 673                         rval = -EINVAL;
 674                         ha->flags.idc_compl_status = 0;
 675                 } else
 676                         ql_dbg(ql_dbg_user, vha, 0x7023,
 677                             "DCBX completion received.\n");
 678         }
 679
 680         ha->notify_dcbx_comp = 0;
 681
 682 done_set_internal:
 683         return rval;
 684 }
 685
 686 static int
 687 qla2x00_process_loopback(struct fc_bsg_job *bsg_job)
 688 {
 689         struct Scsi_Host *host = bsg_job->shost;
 690         scsi_qla_host_t *vha = shost_priv(host);
 691         struct qla_hw_data *ha = vha->hw;
 692         int rval;
 693         uint8_t command_sent;
 694         char *type;
 695         struct msg_echo_lb elreq;
 696         uint16_t response[MAILBOX_REGISTER_COUNT];
 697         uint16_t config[4], new_config[4];
 698         uint8_t *fw_sts_ptr;
 699         uint8_t *req_data = NULL;
 700         dma_addr_t req_data_dma;
 701         uint32_t req_data_len;
 702         uint8_t *rsp_data = NULL;
 703         dma_addr_t rsp_data_dma;
 704         uint32_t rsp_data_len;
 705
 706         if (!vha->flags.online) {
 707                 ql_log(ql_log_warn, vha, 0x7019, "Host is not online.\n");
 708                 return -EIO;
 709         }
 710
 711         elreq.req_sg_cnt = dma_map_sg(&ha->pdev->dev,
 712                 bsg_job->request_payload.sg_list, bsg_job->request_payload.sg_cnt,
 713                 DMA_TO_DEVICE);
 714
 715         if (!elreq.req_sg_cnt) {
 716                 ql_log(ql_log_warn, vha, 0x701a,
 717                     "dma_map_sg returned %d for request.\n", elreq.req_sg_cnt);
 718                 return -ENOMEM;
 719         }
 720
 721         elreq.rsp_sg_cnt = dma_map_sg(&ha->pdev->dev,
 722                 bsg_job->reply_payload.sg_list, bsg_job->reply_payload.sg_cnt,
 723                 DMA_FROM_DEVICE);
 724
 725         if (!elreq.rsp_sg_cnt) {
 726                 ql_log(ql_log_warn, vha, 0x701b,
 727                     "dma_map_sg returned %d for reply.\n", elreq.rsp_sg_cnt);
 728                 rval = -ENOMEM;
 729                 goto done_unmap_req_sg;
 730         }
 731
 732         if ((elreq.req_sg_cnt !=  bsg_job->request_payload.sg_cnt) ||
 733                 (elreq.rsp_sg_cnt != bsg_job->reply_payload.sg_cnt)) {
 734                 ql_log(ql_log_warn, vha, 0x701c,
 735                     "dma mapping resulted in different sg counts, "
 736                     "request_sg_cnt: %x dma_request_sg_cnt: %x "
 737                     "reply_sg_cnt: %x dma_reply_sg_cnt: %x.\n",
 738                     bsg_job->request_payload.sg_cnt, elreq.req_sg_cnt,
 739                     bsg_job->reply_payload.sg_cnt, elreq.rsp_sg_cnt);
 740                 rval = -EAGAIN;
 741                 goto done_unmap_sg;
 742         }
 743         req_data_len = rsp_data_len = bsg_job->request_payload.payload_len;
 744         req_data = dma_alloc_coherent(&ha->pdev->dev, req_data_len,
 745                 &req_data_dma, GFP_KERNEL);
 746         if (!req_data) {
 747                 ql_log(ql_log_warn, vha, 0x701d,
 748                     "dma alloc failed for req_data.\n");
 749                 rval = -ENOMEM;
 750                 goto done_unmap_sg;
 751         }
 752
 753         rsp_data = dma_alloc_coherent(&ha->pdev->dev, rsp_data_len,
 754                 &rsp_data_dma, GFP_KERNEL);
 755         if (!rsp_data) {
 756                 ql_log(ql_log_warn, vha, 0x7004,
 757                     "dma alloc failed for rsp_data.\n");
 758                 rval = -ENOMEM;
 759                 goto done_free_dma_req;
 760         }
 761
 762         /* Copy the request buffer in req_data now */
 763         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
 764                 bsg_job->request_payload.sg_cnt, req_data, req_data_len);
 765
 766         elreq.send_dma = req_data_dma;
 767         elreq.rcv_dma = rsp_data_dma;
 768         elreq.transfer_size = req_data_len;
 769
 770         elreq.options = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
 771         elreq.iteration_count =
 772             bsg_job->request->rqst_data.h_vendor.vendor_cmd[2];
 773
 774         if (atomic_read(&vha->loop_state) == LOOP_READY &&
 775             (ha->current_topology == ISP_CFG_F ||
 776             ((IS_QLA81XX(ha) || IS_QLA8031(ha)) &&
 777             le32_to_cpu(*(uint32_t *)req_data) == ELS_OPCODE_BYTE
 778             && req_data_len == MAX_ELS_FRAME_PAYLOAD)) &&
 779                 elreq.options == EXTERNAL_LOOPBACK) {
 780                 type = "FC_BSG_HST_VENDOR_ECHO_DIAG";
 781                 ql_dbg(ql_dbg_user, vha, 0x701e,
 782                     "BSG request type: %s.\n", type);
 783                 command_sent = INT_DEF_LB_ECHO_CMD;
 784                 rval = qla2x00_echo_test(vha, &elreq, response);
 785         } else {
 786                 if (IS_QLA81XX(ha) || IS_QLA8031(ha)) {
 787                         memset(config, 0, sizeof(config));
 788                         memset(new_config, 0, sizeof(new_config));
 789
 790                         if (qla81xx_get_port_config(vha, config)) {
 791                                 ql_log(ql_log_warn, vha, 0x701f,
 792                                     "Get port config failed.\n");
 793                                 rval = -EPERM;
 794                                 goto done_free_dma_rsp;
 795                         }
 796
 797                         if ((config[0] & INTERNAL_LOOPBACK_MASK) != 0) {
 798                                 ql_dbg(ql_dbg_user, vha, 0x70c4,
 799                                     "Loopback operation already in "
 800                                     "progress.\n");
 801                                 rval = -EAGAIN;
 802                                 goto done_free_dma_rsp;
 803                         }
 804
 805                         ql_dbg(ql_dbg_user, vha, 0x70c0,
 806                             "elreq.options=%04x\n", elreq.options);
 807
 808                         if (elreq.options == EXTERNAL_LOOPBACK)
 809                                 if (IS_QLA8031(ha))
 810                                         rval = qla81xx_set_loopback_mode(vha,
 811                                             config, new_config, elreq.options);
 812                                 else
 813                                         rval = qla81xx_reset_loopback_mode(vha,
 814                                             config, 1, 0);
 815                         else
 816                                 rval = qla81xx_set_loopback_mode(vha, config,
 817                                     new_config, elreq.options);
 818
 819                         if (rval) {
 820                                 rval = -EPERM;
 821                                 goto done_free_dma_rsp;
 822                         }
 823
 824                         type = "FC_BSG_HST_VENDOR_LOOPBACK";
 825                         ql_dbg(ql_dbg_user, vha, 0x7028,
 826                             "BSG request type: %s.\n", type);
 827
 828                         command_sent = INT_DEF_LB_LOOPBACK_CMD;
 829                         rval = qla2x00_loopback_test(vha, &elreq, response);
 830
 831                         if (response[0] == MBS_COMMAND_ERROR &&
 832                                         response[1] == MBS_LB_RESET) {
 833                                 ql_log(ql_log_warn, vha, 0x7029,
 834                                     "MBX command error, Aborting ISP.\n");
 835                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 836                                 qla2xxx_wake_dpc(vha);
 837                                 qla2x00_wait_for_chip_reset(vha);
 838                                 /* Also reset the MPI */
 839                                 if (IS_QLA81XX(ha)) {
 840                                         if (qla81xx_restart_mpi_firmware(vha) !=
 841                                             QLA_SUCCESS) {
 842                                                 ql_log(ql_log_warn, vha, 0x702a,
 843                                                     "MPI reset failed.\n");
 844                                         }
 845                                 }
 846
 847                                 rval = -EIO;
 848                                 goto done_free_dma_rsp;
 849                         }
 850
 851                         if (new_config[0]) {
 852                                 int ret;
 853
 854                                 /* Revert back to original port config
 855                                  * Also clear internal loopback
 856                                  */
 857                                 ret = qla81xx_reset_loopback_mode(vha,
 858                                     new_config, 0, 1);
 859                                 if (ret) {
 860                                         /*
 861                                          * If the reset of the loopback mode
 862                                          * doesn't work take FCoE dump and then
 863                                          * reset the chip.
 864                                          */
 865                                         ha->isp_ops->fw_dump(vha, 0);
 866                                         set_bit(ISP_ABORT_NEEDED,
 867                                             &vha->dpc_flags);
 868                                 }
 869
 870                         }
 871
 872                 } else {
 873                         type = "FC_BSG_HST_VENDOR_LOOPBACK";
 874                         ql_dbg(ql_dbg_user, vha, 0x702b,
 875                             "BSG request type: %s.\n", type);
 876                         command_sent = INT_DEF_LB_LOOPBACK_CMD;
 877                         rval = qla2x00_loopback_test(vha, &elreq, response);
 878                 }
 879         }
 880
 881         if (rval) {
 882                 ql_log(ql_log_warn, vha, 0x702c,
 883                     "Vendor request %s failed.\n", type);
 884
 885                 rval = 0;
 886                 bsg_job->reply->result = (DID_ERROR << 16);
 887                 bsg_job->reply->reply_payload_rcv_len = 0;
 888         } else {
 889                 ql_dbg(ql_dbg_user, vha, 0x702d,
 890                     "Vendor request %s completed.\n", type);
 891                 bsg_job->reply->result = (DID_OK << 16);
 892                 sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
 893                         bsg_job->reply_payload.sg_cnt, rsp_data,
 894                         rsp_data_len);
 895         }
 896
 897         bsg_job->reply_len = sizeof(struct fc_bsg_reply) +
 898             sizeof(response) + sizeof(uint8_t);
 899         fw_sts_ptr = ((uint8_t *)bsg_job->req->sense) +
 900             sizeof(struct fc_bsg_reply);
 901         memcpy(fw_sts_ptr, response, sizeof(response));
 902         fw_sts_ptr += sizeof(response);
 903         *fw_sts_ptr = command_sent;
 904
 905 done_free_dma_rsp:
 906         dma_free_coherent(&ha->pdev->dev, rsp_data_len,
 907                 rsp_data, rsp_data_dma);
 908 done_free_dma_req:
 909         dma_free_coherent(&ha->pdev->dev, req_data_len,
 910                 req_data, req_data_dma);
 911 done_unmap_sg:
 912         dma_unmap_sg(&ha->pdev->dev,
 913             bsg_job->reply_payload.sg_list,
 914             bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
 915 done_unmap_req_sg:
 916         dma_unmap_sg(&ha->pdev->dev,
 917             bsg_job->request_payload.sg_list,
 918             bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
 919         if (!rval)
 920                 bsg_job->job_done(bsg_job);
 921         return rval;
 922 }
 923
 924 static int
 925 qla84xx_reset(struct fc_bsg_job *bsg_job)
 926 {
 927         struct Scsi_Host *host = bsg_job->shost;
 928         scsi_qla_host_t *vha = shost_priv(host);
 929         struct qla_hw_data *ha = vha->hw;
 930         int rval = 0;
 931         uint32_t flag;
 932
 933         if (!IS_QLA84XX(ha)) {
 934                 ql_dbg(ql_dbg_user, vha, 0x702f, "Not 84xx, exiting.\n");
 935                 return -EINVAL;
 936         }
 937
 938         flag = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
 939
 940         rval = qla84xx_reset_chip(vha, flag == A84_ISSUE_RESET_DIAG_FW);
 941
 942         if (rval) {
 943                 ql_log(ql_log_warn, vha, 0x7030,
 944                     "Vendor request 84xx reset failed.\n");
 945                 rval = (DID_ERROR << 16);
 946
 947         } else {
 948                 ql_dbg(ql_dbg_user, vha, 0x7031,
 949                     "Vendor request 84xx reset completed.\n");
 950                 bsg_job->reply->result = DID_OK;
 951                 bsg_job->job_done(bsg_job);
 952         }
 953
 954         return rval;
 955 }
 956
 957 static int
 958 qla84xx_updatefw(struct fc_bsg_job *bsg_job)
 959 {
 960         struct Scsi_Host *host = bsg_job->shost;
 961         scsi_qla_host_t *vha = shost_priv(host);
 962         struct qla_hw_data *ha = vha->hw;
 963         struct verify_chip_entry_84xx *mn = NULL;
 964         dma_addr_t mn_dma, fw_dma;
 965         void *fw_buf = NULL;
 966         int rval = 0;
 967         uint32_t sg_cnt;
 968         uint32_t data_len;
 969         uint16_t options;
 970         uint32_t flag;
 971         uint32_t fw_ver;
 972
 973         if (!IS_QLA84XX(ha)) {
 974                 ql_dbg(ql_dbg_user, vha, 0x7032,
 975                     "Not 84xx, exiting.\n");
 976                 return -EINVAL;
 977         }
 978
 979         sg_cnt = dma_map_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
 980                 bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
 981         if (!sg_cnt) {
 982                 ql_log(ql_log_warn, vha, 0x7033,
 983                     "dma_map_sg returned %d for request.\n", sg_cnt);
 984                 return -ENOMEM;
 985         }
 986
 987         if (sg_cnt != bsg_job->request_payload.sg_cnt) {
 988                 ql_log(ql_log_warn, vha, 0x7034,
 989                     "DMA mapping resulted in different sg counts, "
 990                     "request_sg_cnt: %x dma_request_sg_cnt: %x.\n",
 991                     bsg_job->request_payload.sg_cnt, sg_cnt);
 992                 rval = -EAGAIN;
 993                 goto done_unmap_sg;
 994         }
 995
 996         data_len = bsg_job->request_payload.payload_len;
 997         fw_buf = dma_alloc_coherent(&ha->pdev->dev, data_len,
 998                 &fw_dma, GFP_KERNEL);
 999         if (!fw_buf) {
1000                 ql_log(ql_log_warn, vha, 0x7035,
1001                     "DMA alloc failed for fw_buf.\n");
1002                 rval = -ENOMEM;
1003                 goto done_unmap_sg;
1004         }
1005
1006         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1007                 bsg_job->request_payload.sg_cnt, fw_buf, data_len);
1008
1009         mn = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &mn_dma);
1010         if (!mn) {
1011                 ql_log(ql_log_warn, vha, 0x7036,
1012                     "DMA alloc failed for fw buffer.\n");
1013                 rval = -ENOMEM;
1014                 goto done_free_fw_buf;
1015         }
1016
1017         flag = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
1018         fw_ver = le32_to_cpu(*((uint32_t *)((uint32_t *)fw_buf + 2)));
1019
1020         memset(mn, 0, sizeof(struct access_chip_84xx));
1021         mn->entry_type = VERIFY_CHIP_IOCB_TYPE;
1022         mn->entry_count = 1;
1023
1024         options = VCO_FORCE_UPDATE | VCO_END_OF_DATA;
1025         if (flag == A84_ISSUE_UPDATE_DIAGFW_CMD)
1026                 options |= VCO_DIAG_FW;
1027
1028         mn->options = cpu_to_le16(options);
1029         mn->fw_ver =  cpu_to_le32(fw_ver);
1030         mn->fw_size =  cpu_to_le32(data_len);
1031         mn->fw_seq_size =  cpu_to_le32(data_len);
1032         mn->dseg_address[0] = cpu_to_le32(LSD(fw_dma));
1033         mn->dseg_address[1] = cpu_to_le32(MSD(fw_dma));
1034         mn->dseg_length = cpu_to_le32(data_len);
1035         mn->data_seg_cnt = cpu_to_le16(1);
1036
1037         rval = qla2x00_issue_iocb_timeout(vha, mn, mn_dma, 0, 120);
1038
1039         if (rval) {
1040                 ql_log(ql_log_warn, vha, 0x7037,
1041                     "Vendor request 84xx updatefw failed.\n");
1042
1043                 rval = (DID_ERROR << 16);
1044         } else {
1045                 ql_dbg(ql_dbg_user, vha, 0x7038,
1046                     "Vendor request 84xx updatefw completed.\n");
1047
1048                 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1049                 bsg_job->reply->result = DID_OK;
1050         }
1051
1052         dma_pool_free(ha->s_dma_pool, mn, mn_dma);
1053
1054 done_free_fw_buf:
1055         dma_free_coherent(&ha->pdev->dev, data_len, fw_buf, fw_dma);
1056
1057 done_unmap_sg:
1058         dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
1059                 bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1060
1061         if (!rval)
1062                 bsg_job->job_done(bsg_job);
1063         return rval;
1064 }
1065
1066 static int
1067 qla84xx_mgmt_cmd(struct fc_bsg_job *bsg_job)
1068 {
1069         struct Scsi_Host *host = bsg_job->shost;
1070         scsi_qla_host_t *vha = shost_priv(host);
1071         struct qla_hw_data *ha = vha->hw;
1072         struct access_chip_84xx *mn = NULL;
1073         dma_addr_t mn_dma, mgmt_dma;
1074         void *mgmt_b = NULL;
1075         int rval = 0;
1076         struct qla_bsg_a84_mgmt *ql84_mgmt;
1077         uint32_t sg_cnt;
1078         uint32_t data_len = 0;
1079         uint32_t dma_direction = DMA_NONE;
1080
1081         if (!IS_QLA84XX(ha)) {
1082                 ql_log(ql_log_warn, vha, 0x703a,
1083                     "Not 84xx, exiting.\n");
1084                 return -EINVAL;
1085         }
1086
1087         mn = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &mn_dma);
1088         if (!mn) {
1089                 ql_log(ql_log_warn, vha, 0x703c,
1090                     "DMA alloc failed for fw buffer.\n");
1091                 return -ENOMEM;
1092         }
1093
1094         memset(mn, 0, sizeof(struct access_chip_84xx));
1095         mn->entry_type = ACCESS_CHIP_IOCB_TYPE;
1096         mn->entry_count = 1;
1097         ql84_mgmt = (void *)bsg_job->request + sizeof(struct fc_bsg_request);
1098         switch (ql84_mgmt->mgmt.cmd) {
1099         case QLA84_MGMT_READ_MEM:
1100         case QLA84_MGMT_GET_INFO:
1101                 sg_cnt = dma_map_sg(&ha->pdev->dev,
1102                         bsg_job->reply_payload.sg_list,
1103                         bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1104                 if (!sg_cnt) {
1105                         ql_log(ql_log_warn, vha, 0x703d,
1106                             "dma_map_sg returned %d for reply.\n", sg_cnt);
1107                         rval = -ENOMEM;
1108                         goto exit_mgmt;
1109                 }
1110
1111                 dma_direction = DMA_FROM_DEVICE;
1112
1113                 if (sg_cnt != bsg_job->reply_payload.sg_cnt) {
1114                         ql_log(ql_log_warn, vha, 0x703e,
1115                             "DMA mapping resulted in different sg counts, "
1116                             "reply_sg_cnt: %x dma_reply_sg_cnt: %x.\n",
1117                             bsg_job->reply_payload.sg_cnt, sg_cnt);
1118                         rval = -EAGAIN;
1119                         goto done_unmap_sg;
1120                 }
1121
1122                 data_len = bsg_job->reply_payload.payload_len;
1123
1124                 mgmt_b = dma_alloc_coherent(&ha->pdev->dev, data_len,
1125                     &mgmt_dma, GFP_KERNEL);
1126                 if (!mgmt_b) {
1127                         ql_log(ql_log_warn, vha, 0x703f,
1128                             "DMA alloc failed for mgmt_b.\n");
1129                         rval = -ENOMEM;
1130                         goto done_unmap_sg;
1131                 }
1132
1133                 if (ql84_mgmt->mgmt.cmd == QLA84_MGMT_READ_MEM) {
1134                         mn->options = cpu_to_le16(ACO_DUMP_MEMORY);
1135                         mn->parameter1 =
1136                                 cpu_to_le32(
1137                                 ql84_mgmt->mgmt.mgmtp.u.mem.start_addr);
1138
1139                 } else if (ql84_mgmt->mgmt.cmd == QLA84_MGMT_GET_INFO) {
1140                         mn->options = cpu_to_le16(ACO_REQUEST_INFO);
1141                         mn->parameter1 =
1142                                 cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.info.type);
1143
1144                         mn->parameter2 =
1145                                 cpu_to_le32(
1146                                 ql84_mgmt->mgmt.mgmtp.u.info.context);
1147                 }
1148                 break;
1149
1150         case QLA84_MGMT_WRITE_MEM:
1151                 sg_cnt = dma_map_sg(&ha->pdev->dev,
1152                         bsg_job->request_payload.sg_list,
1153                         bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1154
1155                 if (!sg_cnt) {
1156                         ql_log(ql_log_warn, vha, 0x7040,
1157                             "dma_map_sg returned %d.\n", sg_cnt);
1158                         rval = -ENOMEM;
1159                         goto exit_mgmt;
1160                 }
1161
1162                 dma_direction = DMA_TO_DEVICE;
1163
1164                 if (sg_cnt != bsg_job->request_payload.sg_cnt) {
1165                         ql_log(ql_log_warn, vha, 0x7041,
1166                             "DMA mapping resulted in different sg counts, "
1167                             "request_sg_cnt: %x dma_request_sg_cnt: %x.\n",
1168                             bsg_job->request_payload.sg_cnt, sg_cnt);
1169                         rval = -EAGAIN;
1170                         goto done_unmap_sg;
1171                 }
1172
1173                 data_len = bsg_job->request_payload.payload_len;
1174                 mgmt_b = dma_alloc_coherent(&ha->pdev->dev, data_len,
1175                         &mgmt_dma, GFP_KERNEL);
1176                 if (!mgmt_b) {
1177                         ql_log(ql_log_warn, vha, 0x7042,
1178                             "DMA alloc failed for mgmt_b.\n");
1179                         rval = -ENOMEM;
1180                         goto done_unmap_sg;
1181                 }
1182
1183                 sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1184                         bsg_job->request_payload.sg_cnt, mgmt_b, data_len);
1185
1186                 mn->options = cpu_to_le16(ACO_LOAD_MEMORY);
1187                 mn->parameter1 =
1188                         cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.mem.start_addr);
1189                 break;
1190
1191         case QLA84_MGMT_CHNG_CONFIG:
1192                 mn->options = cpu_to_le16(ACO_CHANGE_CONFIG_PARAM);
1193                 mn->parameter1 =
1194                         cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.config.id);
1195
1196                 mn->parameter2 =
1197                         cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.config.param0);
1198
1199                 mn->parameter3 =
1200                         cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.config.param1);
1201                 break;
1202
1203         default:
1204                 rval = -EIO;
1205                 goto exit_mgmt;
1206         }
1207
1208         if (ql84_mgmt->mgmt.cmd != QLA84_MGMT_CHNG_CONFIG) {
1209                 mn->total_byte_cnt = cpu_to_le32(ql84_mgmt->mgmt.len);
1210                 mn->dseg_count = cpu_to_le16(1);
1211                 mn->dseg_address[0] = cpu_to_le32(LSD(mgmt_dma));
1212                 mn->dseg_address[1] = cpu_to_le32(MSD(mgmt_dma));
1213                 mn->dseg_length = cpu_to_le32(ql84_mgmt->mgmt.len);
1214         }
1215
1216         rval = qla2x00_issue_iocb(vha, mn, mn_dma, 0);
1217
1218         if (rval) {
1219                 ql_log(ql_log_warn, vha, 0x7043,
1220                     "Vendor request 84xx mgmt failed.\n");
1221
1222                 rval = (DID_ERROR << 16);
1223
1224         } else {
1225                 ql_dbg(ql_dbg_user, vha, 0x7044,
1226                     "Vendor request 84xx mgmt completed.\n");
1227
1228                 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1229                 bsg_job->reply->result = DID_OK;
1230
1231                 if ((ql84_mgmt->mgmt.cmd == QLA84_MGMT_READ_MEM) ||
1232                         (ql84_mgmt->mgmt.cmd == QLA84_MGMT_GET_INFO)) {
1233                         bsg_job->reply->reply_payload_rcv_len =
1234                                 bsg_job->reply_payload.payload_len;
1235
1236                         sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
1237                                 bsg_job->reply_payload.sg_cnt, mgmt_b,
1238                                 data_len);
1239                 }
1240         }
1241
1242 done_unmap_sg:
1243         if (mgmt_b)
1244                 dma_free_coherent(&ha->pdev->dev, data_len, mgmt_b, mgmt_dma);
1245
1246         if (dma_direction == DMA_TO_DEVICE)
1247                 dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
1248                         bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1249         else if (dma_direction == DMA_FROM_DEVICE)
1250                 dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
1251                         bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1252
1253 exit_mgmt:
1254         dma_pool_free(ha->s_dma_pool, mn, mn_dma);
1255
1256         if (!rval)
1257                 bsg_job->job_done(bsg_job);
1258         return rval;
1259 }
1260
1261 static int
1262 qla24xx_iidma(struct fc_bsg_job *bsg_job)
1263 {
1264         struct Scsi_Host *host = bsg_job->shost;
1265         scsi_qla_host_t *vha = shost_priv(host);
1266         int rval = 0;
1267         struct qla_port_param *port_param = NULL;
1268         fc_port_t *fcport = NULL;
1269         uint16_t mb[MAILBOX_REGISTER_COUNT];
1270         uint8_t *rsp_ptr = NULL;
1271
1272         if (!IS_IIDMA_CAPABLE(vha->hw)) {
1273                 ql_log(ql_log_info, vha, 0x7046, "iiDMA not supported.\n");
1274                 return -EINVAL;
1275         }
1276
1277         port_param = (void *)bsg_job->request + sizeof(struct fc_bsg_request);
1278         if (port_param->fc_scsi_addr.dest_type != EXT_DEF_TYPE_WWPN) {
1279                 ql_log(ql_log_warn, vha, 0x7048,
1280                     "Invalid destination type.\n");
1281                 return -EINVAL;
1282         }
1283
1284         list_for_each_entry(fcport, &vha->vp_fcports, list) {
1285                 if (fcport->port_type != FCT_TARGET)
1286                         continue;
1287
1288                 if (memcmp(port_param->fc_scsi_addr.dest_addr.wwpn,
1289                         fcport->port_name, sizeof(fcport->port_name)))
1290                         continue;
1291                 break;
1292         }
1293
1294         if (!fcport) {
1295                 ql_log(ql_log_warn, vha, 0x7049,
1296                     "Failed to find port.\n");
1297                 return -EINVAL;
1298         }
1299
1300         if (atomic_read(&fcport->state) != FCS_ONLINE) {
1301                 ql_log(ql_log_warn, vha, 0x704a,
1302                     "Port is not online.\n");
1303                 return -EINVAL;
1304         }
1305
1306         if (fcport->flags & FCF_LOGIN_NEEDED) {
1307                 ql_log(ql_log_warn, vha, 0x704b,
1308                     "Remote port not logged in flags = 0x%x.\n", fcport->flags);
1309                 return -EINVAL;
1310         }
1311
1312         if (port_param->mode)
1313                 rval = qla2x00_set_idma_speed(vha, fcport->loop_id,
1314                         port_param->speed, mb);
1315         else
1316                 rval = qla2x00_get_idma_speed(vha, fcport->loop_id,
1317                         &port_param->speed, mb);
1318
1319         if (rval) {
1320                 ql_log(ql_log_warn, vha, 0x704c,
1321                     "iIDMA cmd failed for %02x%02x%02x%02x%02x%02x%02x%02x -- "
1322                     "%04x %x %04x %04x.\n", fcport->port_name[0],
1323                     fcport->port_name[1], fcport->port_name[2],
1324                     fcport->port_name[3], fcport->port_name[4],
1325                     fcport->port_name[5], fcport->port_name[6],
1326                     fcport->port_name[7], rval, fcport->fp_speed, mb[0], mb[1]);
1327                 rval = (DID_ERROR << 16);
1328         } else {
1329                 if (!port_param->mode) {
1330                         bsg_job->reply_len = sizeof(struct fc_bsg_reply) +
1331                                 sizeof(struct qla_port_param);
1332
1333                         rsp_ptr = ((uint8_t *)bsg_job->reply) +
1334                                 sizeof(struct fc_bsg_reply);
1335
1336                         memcpy(rsp_ptr, port_param,
1337                                 sizeof(struct qla_port_param));
1338                 }
1339
1340                 bsg_job->reply->result = DID_OK;
1341                 bsg_job->job_done(bsg_job);
1342         }
1343
1344         return rval;
1345 }
1346
1347 static int
1348 qla2x00_optrom_setup(struct fc_bsg_job *bsg_job, scsi_qla_host_t *vha,
1349         uint8_t is_update)
1350 {
1351         uint32_t start = 0;
1352         int valid = 0;
1353         struct qla_hw_data *ha = vha->hw;
1354
1355         if (unlikely(pci_channel_offline(ha->pdev)))
1356                 return -EINVAL;
1357
1358         start = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
1359         if (start > ha->optrom_size) {
1360                 ql_log(ql_log_warn, vha, 0x7055,
1361                     "start %d > optrom_size %d.\n", start, ha->optrom_size);
1362                 return -EINVAL;
1363         }
1364
1365         if (ha->optrom_state != QLA_SWAITING) {
1366                 ql_log(ql_log_info, vha, 0x7056,
1367                     "optrom_state %d.\n", ha->optrom_state);
1368                 return -EBUSY;
1369         }
1370
1371         ha->optrom_region_start = start;
1372         ql_dbg(ql_dbg_user, vha, 0x7057, "is_update=%d.\n", is_update);
1373         if (is_update) {
1374                 if (ha->optrom_size == OPTROM_SIZE_2300 && start == 0)
1375                         valid = 1;
1376                 else if (start == (ha->flt_region_boot * 4) ||
1377                     start == (ha->flt_region_fw * 4))
1378                         valid = 1;
1379                 else if (IS_QLA24XX_TYPE(ha) || IS_QLA25XX(ha) ||
1380                     IS_CNA_CAPABLE(ha) || IS_QLA2031(ha))
1381                         valid = 1;
1382                 if (!valid) {
1383                         ql_log(ql_log_warn, vha, 0x7058,
1384                             "Invalid start region 0x%x/0x%x.\n", start,
1385                             bsg_job->request_payload.payload_len);
1386                         return -EINVAL;
1387                 }
1388
1389                 ha->optrom_region_size = start +
1390                     bsg_job->request_payload.payload_len > ha->optrom_size ?
1391                     ha->optrom_size - start :
1392                     bsg_job->request_payload.payload_len;
1393                 ha->optrom_state = QLA_SWRITING;
1394         } else {
1395                 ha->optrom_region_size = start +
1396                     bsg_job->reply_payload.payload_len > ha->optrom_size ?
1397                     ha->optrom_size - start :
1398                     bsg_job->reply_payload.payload_len;
1399                 ha->optrom_state = QLA_SREADING;
1400         }
1401
1402         ha->optrom_buffer = vmalloc(ha->optrom_region_size);
1403         if (!ha->optrom_buffer) {
1404                 ql_log(ql_log_warn, vha, 0x7059,
1405                     "Read: Unable to allocate memory for optrom retrieval "
1406                     "(%x)\n", ha->optrom_region_size);
1407
1408                 ha->optrom_state = QLA_SWAITING;
1409                 return -ENOMEM;
1410         }
1411
1412         memset(ha->optrom_buffer, 0, ha->optrom_region_size);
1413         return 0;
1414 }
1415
1416 static int
1417 qla2x00_read_optrom(struct fc_bsg_job *bsg_job)
1418 {
1419         struct Scsi_Host *host = bsg_job->shost;
1420         scsi_qla_host_t *vha = shost_priv(host);
1421         struct qla_hw_data *ha = vha->hw;
1422         int rval = 0;
1423
1424         if (ha->flags.nic_core_reset_hdlr_active)
1425                 return -EBUSY;
1426
1427         rval = qla2x00_optrom_setup(bsg_job, vha, 0);
1428         if (rval)
1429                 return rval;
1430
1431         ha->isp_ops->read_optrom(vha, ha->optrom_buffer,
1432             ha->optrom_region_start, ha->optrom_region_size);
1433
1434         sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
1435             bsg_job->reply_payload.sg_cnt, ha->optrom_buffer,
1436             ha->optrom_region_size);
1437
1438         bsg_job->reply->reply_payload_rcv_len = ha->optrom_region_size;
1439         bsg_job->reply->result = DID_OK;
1440         vfree(ha->optrom_buffer);
1441         ha->optrom_buffer = NULL;
1442         ha->optrom_state = QLA_SWAITING;
1443         bsg_job->job_done(bsg_job);
1444         return rval;
1445 }
1446
1447 static int
1448 qla2x00_update_optrom(struct fc_bsg_job *bsg_job)
1449 {
1450         struct Scsi_Host *host = bsg_job->shost;
1451         scsi_qla_host_t *vha = shost_priv(host);
1452         struct qla_hw_data *ha = vha->hw;
1453         int rval = 0;
1454
1455         rval = qla2x00_optrom_setup(bsg_job, vha, 1);
1456         if (rval)
1457                 return rval;
1458
1459         /* Set the isp82xx_no_md_cap not to capture minidump */
1460         ha->flags.isp82xx_no_md_cap = 1;
1461
1462         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1463             bsg_job->request_payload.sg_cnt, ha->optrom_buffer,
1464             ha->optrom_region_size);
1465
1466         ha->isp_ops->write_optrom(vha, ha->optrom_buffer,
1467             ha->optrom_region_start, ha->optrom_region_size);
1468
1469         bsg_job->reply->result = DID_OK;
1470         vfree(ha->optrom_buffer);
1471         ha->optrom_buffer = NULL;
1472         ha->optrom_state = QLA_SWAITING;
1473         bsg_job->job_done(bsg_job);
1474         return rval;
1475 }
1476
1477 static int
1478 qla2x00_update_fru_versions(struct fc_bsg_job *bsg_job)
1479 {
1480         struct Scsi_Host *host = bsg_job->shost;
1481         scsi_qla_host_t *vha = shost_priv(host);
1482         struct qla_hw_data *ha = vha->hw;
1483         int rval = 0;
1484         uint8_t bsg[DMA_POOL_SIZE];
1485         struct qla_image_version_list *list = (void *)bsg;
1486         struct qla_image_version *image;
1487         uint32_t count;
1488         dma_addr_t sfp_dma;
1489         void *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1490         if (!sfp) {
1491                 bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1492                     EXT_STATUS_NO_MEMORY;
1493                 goto done;
1494         }
1495
1496         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1497             bsg_job->request_payload.sg_cnt, list, sizeof(bsg));
1498
1499         image = list->version;
1500         count = list->count;
1501         while (count--) {
1502                 memcpy(sfp, &image->field_info, sizeof(image->field_info));
1503                 rval = qla2x00_write_sfp(vha, sfp_dma, sfp,
1504                     image->field_address.device, image->field_address.offset,
1505                     sizeof(image->field_info), image->field_address.option);
1506                 if (rval) {
1507                         bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1508                             EXT_STATUS_MAILBOX;
1509                         goto dealloc;
1510                 }
1511                 image++;
1512         }
1513
1514         bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1515
1516 dealloc:
1517         dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1518
1519 done:
1520         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1521         bsg_job->reply->result = DID_OK << 16;
1522         bsg_job->job_done(bsg_job);
1523
1524         return 0;
1525 }
1526
1527 static int
1528 qla2x00_read_fru_status(struct fc_bsg_job *bsg_job)
1529 {
1530         struct Scsi_Host *host = bsg_job->shost;
1531         scsi_qla_host_t *vha = shost_priv(host);
1532         struct qla_hw_data *ha = vha->hw;
1533         int rval = 0;
1534         uint8_t bsg[DMA_POOL_SIZE];
1535         struct qla_status_reg *sr = (void *)bsg;
1536         dma_addr_t sfp_dma;
1537         uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1538         if (!sfp) {
1539                 bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1540                     EXT_STATUS_NO_MEMORY;
1541                 goto done;
1542         }
1543
1544         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1545             bsg_job->request_payload.sg_cnt, sr, sizeof(*sr));
1546
1547         rval = qla2x00_read_sfp(vha, sfp_dma, sfp,
1548             sr->field_address.device, sr->field_address.offset,
1549             sizeof(sr->status_reg), sr->field_address.option);
1550         sr->status_reg = *sfp;
1551
1552         if (rval) {
1553                 bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1554                     EXT_STATUS_MAILBOX;
1555                 goto dealloc;
1556         }
1557
1558         sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
1559             bsg_job->reply_payload.sg_cnt, sr, sizeof(*sr));
1560
1561         bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1562
1563 dealloc:
1564         dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1565
1566 done:
1567         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1568         bsg_job->reply->reply_payload_rcv_len = sizeof(*sr);
1569         bsg_job->reply->result = DID_OK << 16;
1570         bsg_job->job_done(bsg_job);
1571
1572         return 0;
1573 }
1574
1575 static int
1576 qla2x00_write_fru_status(struct fc_bsg_job *bsg_job)
1577 {
1578         struct Scsi_Host *host = bsg_job->shost;
1579         scsi_qla_host_t *vha = shost_priv(host);
1580         struct qla_hw_data *ha = vha->hw;
1581         int rval = 0;
1582         uint8_t bsg[DMA_POOL_SIZE];
1583         struct qla_status_reg *sr = (void *)bsg;
1584         dma_addr_t sfp_dma;
1585         uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1586         if (!sfp) {
1587                 bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1588                     EXT_STATUS_NO_MEMORY;
1589                 goto done;
1590         }
1591
1592         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1593             bsg_job->request_payload.sg_cnt, sr, sizeof(*sr));
1594
1595         *sfp = sr->status_reg;
1596         rval = qla2x00_write_sfp(vha, sfp_dma, sfp,
1597             sr->field_address.device, sr->field_address.offset,
1598             sizeof(sr->status_reg), sr->field_address.option);
1599
1600         if (rval) {
1601                 bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1602                     EXT_STATUS_MAILBOX;
1603                 goto dealloc;
1604         }
1605
1606         bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1607
1608 dealloc:
1609         dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1610
1611 done:
1612         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1613         bsg_job->reply->result = DID_OK << 16;
1614         bsg_job->job_done(bsg_job);
1615
1616         return 0;
1617 }
1618
1619 static int
1620 qla2x00_write_i2c(struct fc_bsg_job *bsg_job)
1621 {
1622         struct Scsi_Host *host = bsg_job->shost;
1623         scsi_qla_host_t *vha = shost_priv(host);
1624         struct qla_hw_data *ha = vha->hw;
1625         int rval = 0;
1626         uint8_t bsg[DMA_POOL_SIZE];
1627         struct qla_i2c_access *i2c = (void *)bsg;
1628         dma_addr_t sfp_dma;
1629         uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1630         if (!sfp) {
1631                 bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1632                     EXT_STATUS_NO_MEMORY;
1633                 goto done;
1634         }
1635
1636         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1637             bsg_job->request_payload.sg_cnt, i2c, sizeof(*i2c));
1638
1639         memcpy(sfp, i2c->buffer, i2c->length);
1640         rval = qla2x00_write_sfp(vha, sfp_dma, sfp,
1641             i2c->device, i2c->offset, i2c->length, i2c->option);
1642
1643         if (rval) {
1644                 bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1645                     EXT_STATUS_MAILBOX;
1646                 goto dealloc;
1647         }
1648
1649         bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1650
1651 dealloc:
1652         dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1653
1654 done:
1655         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1656         bsg_job->reply->result = DID_OK << 16;
1657         bsg_job->job_done(bsg_job);
1658
1659         return 0;
1660 }
1661
1662 static int
1663 qla2x00_read_i2c(struct fc_bsg_job *bsg_job)
1664 {
1665         struct Scsi_Host *host = bsg_job->shost;
1666         scsi_qla_host_t *vha = shost_priv(host);
1667         struct qla_hw_data *ha = vha->hw;
1668         int rval = 0;
1669         uint8_t bsg[DMA_POOL_SIZE];
1670         struct qla_i2c_access *i2c = (void *)bsg;
1671         dma_addr_t sfp_dma;
1672         uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1673         if (!sfp) {
1674                 bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1675                     EXT_STATUS_NO_MEMORY;
1676                 goto done;
1677         }
1678
1679         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1680             bsg_job->request_payload.sg_cnt, i2c, sizeof(*i2c));
1681
1682         rval = qla2x00_read_sfp(vha, sfp_dma, sfp,
1683                 i2c->device, i2c->offset, i2c->length, i2c->option);
1684
1685         if (rval) {
1686                 bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1687                     EXT_STATUS_MAILBOX;
1688                 goto dealloc;
1689         }
1690
1691         memcpy(i2c->buffer, sfp, i2c->length);
1692         sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
1693             bsg_job->reply_payload.sg_cnt, i2c, sizeof(*i2c));
1694
1695         bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1696
1697 dealloc:
1698         dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1699
1700 done:
1701         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1702         bsg_job->reply->reply_payload_rcv_len = sizeof(*i2c);
1703         bsg_job->reply->result = DID_OK << 16;
1704         bsg_job->job_done(bsg_job);
1705
1706         return 0;
1707 }
1708
1709 static int
1710 qla24xx_process_bidir_cmd(struct fc_bsg_job *bsg_job)
1711 {
1712         struct Scsi_Host *host = bsg_job->shost;
1713         scsi_qla_host_t *vha = shost_priv(host);
1714         struct qla_hw_data *ha = vha->hw;
1715         uint16_t thread_id;
1716         uint32_t rval = EXT_STATUS_OK;
1717         uint16_t req_sg_cnt = 0;
1718         uint16_t rsp_sg_cnt = 0;
1719         uint16_t nextlid = 0;
1720         uint32_t tot_dsds;
1721         srb_t *sp = NULL;
1722         uint32_t req_data_len = 0;
1723         uint32_t rsp_data_len = 0;
1724
1725         /* Check the type of the adapter */
1726         if (!IS_BIDI_CAPABLE(ha)) {
1727                 ql_log(ql_log_warn, vha, 0x70a0,
1728                         "This adapter is not supported\n");
1729                 rval = EXT_STATUS_NOT_SUPPORTED;
1730                 goto done;
1731         }
1732
1733         if (test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
1734                 test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) ||
1735                 test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
1736                 rval =  EXT_STATUS_BUSY;
1737                 goto done;
1738         }
1739
1740         /* Check if host is online */
1741         if (!vha->flags.online) {
1742                 ql_log(ql_log_warn, vha, 0x70a1,
1743                         "Host is not online\n");
1744                 rval = EXT_STATUS_DEVICE_OFFLINE;
1745                 goto done;
1746         }
1747
1748         /* Check if cable is plugged in or not */
1749         if (vha->device_flags & DFLG_NO_CABLE) {
1750                 ql_log(ql_log_warn, vha, 0x70a2,
1751                         "Cable is unplugged...\n");
1752                 rval = EXT_STATUS_INVALID_CFG;
1753                 goto done;
1754         }
1755
1756         /* Check if the switch is connected or not */
1757         if (ha->current_topology != ISP_CFG_F) {
1758                 ql_log(ql_log_warn, vha, 0x70a3,
1759                         "Host is not connected to the switch\n");
1760                 rval = EXT_STATUS_INVALID_CFG;
1761                 goto done;
1762         }
1763
1764         /* Check if operating mode is P2P */
1765         if (ha->operating_mode != P2P) {
1766                 ql_log(ql_log_warn, vha, 0x70a4,
1767                     "Host is operating mode is not P2p\n");
1768                 rval = EXT_STATUS_INVALID_CFG;
1769                 goto done;
1770         }
1771
1772         thread_id = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
1773
1774         mutex_lock(&ha->selflogin_lock);
1775         if (vha->self_login_loop_id == 0) {
1776                 /* Initialize all required  fields of fcport */
1777                 vha->bidir_fcport.vha = vha;
1778                 vha->bidir_fcport.d_id.b.al_pa = vha->d_id.b.al_pa;
1779                 vha->bidir_fcport.d_id.b.area = vha->d_id.b.area;
1780                 vha->bidir_fcport.d_id.b.domain = vha->d_id.b.domain;
1781                 vha->bidir_fcport.loop_id = vha->loop_id;
1782
1783                 if (qla2x00_fabric_login(vha, &(vha->bidir_fcport), &nextlid)) {
1784                         ql_log(ql_log_warn, vha, 0x70a7,
1785                             "Failed to login port %06X for bidirectional IOCB\n",
1786                             vha->bidir_fcport.d_id.b24);
1787                         mutex_unlock(&ha->selflogin_lock);
1788                         rval = EXT_STATUS_MAILBOX;
1789                         goto done;
1790                 }
1791                 vha->self_login_loop_id = nextlid - 1;
1792
1793         }
1794         /* Assign the self login loop id to fcport */
1795         mutex_unlock(&ha->selflogin_lock);
1796
1797         vha->bidir_fcport.loop_id = vha->self_login_loop_id;
1798
1799         req_sg_cnt = dma_map_sg(&ha->pdev->dev,
1800                 bsg_job->request_payload.sg_list,
1801                 bsg_job->request_payload.sg_cnt,
1802                 DMA_TO_DEVICE);
1803
1804         if (!req_sg_cnt) {
1805                 rval = EXT_STATUS_NO_MEMORY;
1806                 goto done;
1807         }
1808
1809         rsp_sg_cnt = dma_map_sg(&ha->pdev->dev,
1810                 bsg_job->reply_payload.sg_list, bsg_job->reply_payload.sg_cnt,
1811                 DMA_FROM_DEVICE);
1812
1813         if (!rsp_sg_cnt) {
1814                 rval = EXT_STATUS_NO_MEMORY;
1815                 goto done_unmap_req_sg;
1816         }
1817
1818         if ((req_sg_cnt !=  bsg_job->request_payload.sg_cnt) ||
1819                 (rsp_sg_cnt != bsg_job->reply_payload.sg_cnt)) {
1820                 ql_dbg(ql_dbg_user, vha, 0x70a9,
1821                     "Dma mapping resulted in different sg counts "
1822                     "[request_sg_cnt: %x dma_request_sg_cnt: %x reply_sg_cnt: "
1823                     "%x dma_reply_sg_cnt: %x]\n",
1824                     bsg_job->request_payload.sg_cnt, req_sg_cnt,
1825                     bsg_job->reply_payload.sg_cnt, rsp_sg_cnt);
1826                 rval = EXT_STATUS_NO_MEMORY;
1827                 goto done_unmap_sg;
1828         }
1829
1830         if (req_data_len != rsp_data_len) {
1831                 rval = EXT_STATUS_BUSY;
1832                 ql_log(ql_log_warn, vha, 0x70aa,
1833                     "req_data_len != rsp_data_len\n");
1834                 goto done_unmap_sg;
1835         }
1836
1837         req_data_len = bsg_job->request_payload.payload_len;
1838         rsp_data_len = bsg_job->reply_payload.payload_len;
1839
1840
1841         /* Alloc SRB structure */
1842         sp = qla2x00_get_sp(vha, &(vha->bidir_fcport), GFP_KERNEL);
1843         if (!sp) {
1844                 ql_dbg(ql_dbg_user, vha, 0x70ac,
1845                     "Alloc SRB structure failed\n");
1846                 rval = EXT_STATUS_NO_MEMORY;
1847                 goto done_unmap_sg;
1848         }
1849
1850         /*Populate srb->ctx with bidir ctx*/
1851         sp->u.bsg_job = bsg_job;
1852         sp->free = qla2x00_bsg_sp_free;
1853         sp->type = SRB_BIDI_CMD;
1854         sp->done = qla2x00_bsg_job_done;
1855
1856         /* Add the read and write sg count */
1857         tot_dsds = rsp_sg_cnt + req_sg_cnt;
1858
1859         rval = qla2x00_start_bidir(sp, vha, tot_dsds);
1860         if (rval != EXT_STATUS_OK)
1861                 goto done_free_srb;
1862         /* the bsg request  will be completed in the interrupt handler */
1863         return rval;
1864
1865 done_free_srb:
1866         mempool_free(sp, ha->srb_mempool);
1867 done_unmap_sg:
1868         dma_unmap_sg(&ha->pdev->dev,
1869             bsg_job->reply_payload.sg_list,
1870             bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1871 done_unmap_req_sg:
1872         dma_unmap_sg(&ha->pdev->dev,
1873             bsg_job->request_payload.sg_list,
1874             bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1875 done:
1876
1877         /* Return an error vendor specific response
1878          * and complete the bsg request
1879          */
1880         bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
1881         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1882         bsg_job->reply->reply_payload_rcv_len = 0;
1883         bsg_job->reply->result = (DID_OK) << 16;
1884         bsg_job->job_done(bsg_job);
1885         /* Always retrun success, vendor rsp carries correct status */
1886         return 0;
1887 }
1888
1889 static int
1890 qlafx00_mgmt_cmd(struct fc_bsg_job *bsg_job)
1891 {
1892         struct Scsi_Host *host = bsg_job->shost;
1893         scsi_qla_host_t *vha = shost_priv(host);
1894         struct qla_hw_data *ha = vha->hw;
1895         int rval = (DRIVER_ERROR << 16);
1896         struct qla_mt_iocb_rqst_fx00 *piocb_rqst;
1897         srb_t *sp;
1898         int req_sg_cnt = 0, rsp_sg_cnt = 0;
1899         struct fc_port *fcport;
1900         char  *type = "FC_BSG_HST_FX_MGMT";
1901
1902         /* Copy the IOCB specific information */
1903         piocb_rqst = (struct qla_mt_iocb_rqst_fx00 *)
1904             &bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
1905
1906         /* Dump the vendor information */
1907         ql_dump_buffer(ql_dbg_user + ql_dbg_verbose , vha, 0x70cf,
1908             (uint8_t *)piocb_rqst, sizeof(struct qla_mt_iocb_rqst_fx00));
1909
1910         if (!vha->flags.online) {
1911                 ql_log(ql_log_warn, vha, 0x70d0,
1912                     "Host is not online.\n");
1913                 rval = -EIO;
1914                 goto done;
1915         }
1916
1917         if (piocb_rqst->flags & SRB_FXDISC_REQ_DMA_VALID) {
1918                 req_sg_cnt = dma_map_sg(&ha->pdev->dev,
1919                     bsg_job->request_payload.sg_list,
1920                     bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1921                 if (!req_sg_cnt) {
1922                         ql_log(ql_log_warn, vha, 0x70c7,
1923                             "dma_map_sg return %d for request\n", req_sg_cnt);
1924                         rval = -ENOMEM;
1925                         goto done;
1926                 }
1927         }
1928
1929         if (piocb_rqst->flags & SRB_FXDISC_RESP_DMA_VALID) {
1930                 rsp_sg_cnt = dma_map_sg(&ha->pdev->dev,
1931                     bsg_job->reply_payload.sg_list,
1932                     bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1933                 if (!rsp_sg_cnt) {
1934                         ql_log(ql_log_warn, vha, 0x70c8,
1935                             "dma_map_sg return %d for reply\n", rsp_sg_cnt);
1936                         rval = -ENOMEM;
1937                         goto done_unmap_req_sg;
1938                 }
1939         }
1940
1941         ql_dbg(ql_dbg_user, vha, 0x70c9,
1942             "request_sg_cnt: %x dma_request_sg_cnt: %x reply_sg_cnt:%x "
1943             "dma_reply_sg_cnt: %x\n", bsg_job->request_payload.sg_cnt,
1944             req_sg_cnt, bsg_job->reply_payload.sg_cnt, rsp_sg_cnt);
1945
1946         /* Allocate a dummy fcport structure, since functions preparing the
1947          * IOCB and mailbox command retrieves port specific information
1948          * from fcport structure. For Host based ELS commands there will be
1949          * no fcport structure allocated
1950          */
1951         fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
1952         if (!fcport) {
1953                 ql_log(ql_log_warn, vha, 0x70ca,
1954                     "Failed to allocate fcport.\n");
1955                 rval = -ENOMEM;
1956                 goto done_unmap_rsp_sg;
1957         }
1958
1959         /* Alloc SRB structure */
1960         sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1961         if (!sp) {
1962                 ql_log(ql_log_warn, vha, 0x70cb,
1963                     "qla2x00_get_sp failed.\n");
1964                 rval = -ENOMEM;
1965                 goto done_free_fcport;
1966         }
1967
1968         /* Initialize all required  fields of fcport */
1969         fcport->vha = vha;
1970         fcport->loop_id = piocb_rqst->dataword;
1971
1972         sp->type = SRB_FXIOCB_BCMD;
1973         sp->name = "bsg_fx_mgmt";
1974         sp->iocbs = qla24xx_calc_ct_iocbs(req_sg_cnt + rsp_sg_cnt);
1975         sp->u.bsg_job = bsg_job;
1976         sp->free = qla2x00_bsg_sp_free;
1977         sp->done = qla2x00_bsg_job_done;
1978
1979         ql_dbg(ql_dbg_user, vha, 0x70cc,
1980             "bsg rqst type: %s fx_mgmt_type: %x id=%x\n",
1981             type, piocb_rqst->func_type, fcport->loop_id);
1982
1983         rval = qla2x00_start_sp(sp);
1984         if (rval != QLA_SUCCESS) {
1985                 ql_log(ql_log_warn, vha, 0x70cd,
1986                     "qla2x00_start_sp failed=%d.\n", rval);
1987                 mempool_free(sp, ha->srb_mempool);
1988                 rval = -EIO;
1989                 goto done_free_fcport;
1990         }
1991         return rval;
1992
1993 done_free_fcport:
1994         kfree(fcport);
1995
1996 done_unmap_rsp_sg:
1997         if (piocb_rqst->flags & SRB_FXDISC_RESP_DMA_VALID)
1998                 dma_unmap_sg(&ha->pdev->dev,
1999                     bsg_job->reply_payload.sg_list,
2000                     bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
2001 done_unmap_req_sg:
2002         if (piocb_rqst->flags & SRB_FXDISC_REQ_DMA_VALID)
2003                 dma_unmap_sg(&ha->pdev->dev,
2004                     bsg_job->request_payload.sg_list,
2005                     bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
2006
2007 done:
2008         return rval;
2009 }
2010
2011 static int
2012 qla2x00_process_vendor_specific(struct fc_bsg_job *bsg_job)
2013 {
2014         switch (bsg_job->request->rqst_data.h_vendor.vendor_cmd[0]) {
2015         case QL_VND_LOOPBACK:
2016                 return qla2x00_process_loopback(bsg_job);
2017
2018         case QL_VND_A84_RESET:
2019                 return qla84xx_reset(bsg_job);
2020
2021         case QL_VND_A84_UPDATE_FW:
2022                 return qla84xx_updatefw(bsg_job);
2023
2024         case QL_VND_A84_MGMT_CMD:
2025                 return qla84xx_mgmt_cmd(bsg_job);
2026
2027         case QL_VND_IIDMA:
2028                 return qla24xx_iidma(bsg_job);
2029
2030         case QL_VND_FCP_PRIO_CFG_CMD:
2031                 return qla24xx_proc_fcp_prio_cfg_cmd(bsg_job);
2032
2033         case QL_VND_READ_FLASH:
2034                 return qla2x00_read_optrom(bsg_job);
2035
2036         case QL_VND_UPDATE_FLASH:
2037                 return qla2x00_update_optrom(bsg_job);
2038
2039         case QL_VND_SET_FRU_VERSION:
2040                 return qla2x00_update_fru_versions(bsg_job);
2041
2042         case QL_VND_READ_FRU_STATUS:
2043                 return qla2x00_read_fru_status(bsg_job);
2044
2045         case QL_VND_WRITE_FRU_STATUS:
2046                 return qla2x00_write_fru_status(bsg_job);
2047
2048         case QL_VND_WRITE_I2C:
2049                 return qla2x00_write_i2c(bsg_job);
2050
2051         case QL_VND_READ_I2C:
2052                 return qla2x00_read_i2c(bsg_job);
2053
2054         case QL_VND_DIAG_IO_CMD:
2055                 return qla24xx_process_bidir_cmd(bsg_job);
2056
2057         case QL_VND_FX00_MGMT_CMD:
2058                 return qlafx00_mgmt_cmd(bsg_job);
2059         default:
2060                 return -ENOSYS;
2061         }
2062 }
2063
2064 int
2065 qla24xx_bsg_request(struct fc_bsg_job *bsg_job)
2066 {
2067         int ret = -EINVAL;
2068         struct fc_rport *rport;
2069         fc_port_t *fcport = NULL;
2070         struct Scsi_Host *host;
2071         scsi_qla_host_t *vha;
2072
2073         /* In case no data transferred. */
2074         bsg_job->reply->reply_payload_rcv_len = 0;
2075
2076         if (bsg_job->request->msgcode == FC_BSG_RPT_ELS) {
2077                 rport = bsg_job->rport;
2078                 fcport = *(fc_port_t **) rport->dd_data;
2079                 host = rport_to_shost(rport);
2080                 vha = shost_priv(host);
2081         } else {
2082                 host = bsg_job->shost;
2083                 vha = shost_priv(host);
2084         }
2085
2086         if (qla2x00_reset_active(vha)) {
2087                 ql_dbg(ql_dbg_user, vha, 0x709f,
2088                     "BSG: ISP abort active/needed -- cmd=%d.\n",
2089                     bsg_job->request->msgcode);
2090                 return -EBUSY;
2091         }
2092
2093         ql_dbg(ql_dbg_user, vha, 0x7000,
2094             "Entered %s msgcode=0x%x.\n", __func__, bsg_job->request->msgcode);
2095
2096         switch (bsg_job->request->msgcode) {
2097         case FC_BSG_RPT_ELS:
2098         case FC_BSG_HST_ELS_NOLOGIN:
2099                 ret = qla2x00_process_els(bsg_job);
2100                 break;
2101         case FC_BSG_HST_CT:
2102                 ret = qla2x00_process_ct(bsg_job);
2103                 break;
2104         case FC_BSG_HST_VENDOR:
2105                 ret = qla2x00_process_vendor_specific(bsg_job);
2106                 break;
2107         case FC_BSG_HST_ADD_RPORT:
2108         case FC_BSG_HST_DEL_RPORT:
2109         case FC_BSG_RPT_CT:
2110         default:
2111                 ql_log(ql_log_warn, vha, 0x705a, "Unsupported BSG request.\n");
2112                 break;
2113         }
2114         return ret;
2115 }
2116
2117 int
2118 qla24xx_bsg_timeout(struct fc_bsg_job *bsg_job)
2119 {
2120         scsi_qla_host_t *vha = shost_priv(bsg_job->shost);
2121         struct qla_hw_data *ha = vha->hw;
2122         srb_t *sp;
2123         int cnt, que;
2124         unsigned long flags;
2125         struct req_que *req;
2126
2127         /* find the bsg job from the active list of commands */
2128         spin_lock_irqsave(&ha->hardware_lock, flags);
2129         for (que = 0; que < ha->max_req_queues; que++) {
2130                 req = ha->req_q_map[que];
2131                 if (!req)
2132                         continue;
2133
2134                 for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
2135                         sp = req->outstanding_cmds[cnt];
2136                         if (sp) {
2137                                 if (((sp->type == SRB_CT_CMD) ||
2138                                         (sp->type == SRB_ELS_CMD_HST) ||
2139                                         (sp->type == SRB_FXIOCB_BCMD))
2140                                         && (sp->u.bsg_job == bsg_job)) {
2141                                         req->outstanding_cmds[cnt] = NULL;
2142                                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2143                                         if (ha->isp_ops->abort_command(sp)) {
2144                                                 ql_log(ql_log_warn, vha, 0x7089,
2145                                                     "mbx abort_command "
2146                                                     "failed.\n");
2147                                                 bsg_job->req->errors =
2148                                                 bsg_job->reply->result = -EIO;
2149                                         } else {
2150                                                 ql_dbg(ql_dbg_user, vha, 0x708a,
2151                                                     "mbx abort_command "
2152                                                     "success.\n");
2153                                                 bsg_job->req->errors =
2154                                                 bsg_job->reply->result = 0;
2155                                         }
2156                                         spin_lock_irqsave(&ha->hardware_lock, flags);
2157                                         goto done;
2158                                 }
2159                         }
2160                 }
2161         }
2162         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2163         ql_log(ql_log_info, vha, 0x708b, "SRB not found to abort.\n");
2164         bsg_job->req->errors = bsg_job->reply->result = -ENXIO;
2165         return 0;
2166
2167 done:
2168         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2169         sp->free(vha, sp);
2170         return 0;
2171 }