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_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         }
 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) && !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         }
 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         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
 695 done_set_internal:
 696         return rval;
 697 }
 698
 699 static int
 700 qla2x00_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
 918 done_free_dma_rsp:
 919         dma_free_coherent(&ha->pdev->dev, rsp_data_len,
 920                 rsp_data, rsp_data_dma);
 921 done_free_dma_req:
 922         dma_free_coherent(&ha->pdev->dev, req_data_len,
 923                 req_data, req_data_dma);
 924 done_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);
 928 done_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
 937 static int
 938 qla84xx_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
 970 static int
 971 qla84xx_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
1067 done_free_fw_buf:
1068         dma_free_coherent(&ha->pdev->dev, data_len, fw_buf, fw_dma);
1069
1070 done_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
1079 static int
1080 qla84xx_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
1255 done_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
1266 exit_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
1274 static int
1275 qla24xx_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
1360 static int
1361 qla2x00_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
1429 static int
1430 qla2x00_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
1460 static int
1461 qla2x00_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
1490 static int
1491 qla2x00_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
1529 dealloc:
1530         dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1531
1532 done:
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
1540 static int
1541 qla2x00_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
1576 dealloc:
1577         dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1578
1579 done:
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
1588 static int
1589 qla2x00_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
1621 dealloc:
1622         dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1623
1624 done:
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
1632 static int
1633 qla2x00_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
1664 dealloc:
1665         dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1666
1667 done:
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
1675 static int
1676 qla2x00_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
1710 dealloc:
1711         dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1712
1713 done:
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
1722 static int
1723 qla24xx_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
1878 done_free_srb:
1879         mempool_free(sp, ha->srb_mempool);
1880 done_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);
1884 done_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);
1888 done:
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
1902 static int
1903 qlafx00_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
2006 done_free_fcport:
2007         kfree(fcport);
2008
2009 done_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);
2014 done_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
2020 done:
2021         return rval;
2022 }
2023
2024 static int
2025 qla2x00_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
2077 int
2078 qla24xx_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
2130 int
2131 qla24xx_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
2180 done:
2181         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2182         sp->free(vha, sp);
2183         return 0;
2184 }