Pileus Git - ~andy/linux/blob - 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         /* pass through is supported only for ISP 4Gb or higher */
 273         if (!IS_FWI2_CAPABLE(ha)) {
 274                 ql_dbg(ql_dbg_user, vha, 0x7001,
 275                     "ELS passthru not supported for ISP23xx based adapters.\n");
 276                 rval = -EPERM;
 277                 goto done;
 278         }
 279
 280         /*  Multiple SG's are not supported for ELS requests */
 281         if (bsg_job->request_payload.sg_cnt > 1 ||
 282                 bsg_job->reply_payload.sg_cnt > 1) {
 283                 ql_dbg(ql_dbg_user, vha, 0x7002,
 284                     "Multiple SG's are not suppored for ELS requests, "
 285                     "request_sg_cnt=%x reply_sg_cnt=%x.\n",
 286                     bsg_job->request_payload.sg_cnt,
 287                     bsg_job->reply_payload.sg_cnt);
 288                 rval = -EPERM;
 289                 goto done;
 290         }
 291
 292         /* ELS request for rport */
 293         if (bsg_job->request->msgcode == FC_BSG_RPT_ELS) {
 294                 /* make sure the rport is logged in,
 295                  * if not perform fabric login
 296                  */
 297                 if (qla2x00_fabric_login(vha, fcport, &nextlid)) {
 298                         ql_dbg(ql_dbg_user, vha, 0x7003,
 299                             "Failed to login port %06X for ELS passthru.\n",
 300                             fcport->d_id.b24);
 301                         rval = -EIO;
 302                         goto done;
 303                 }
 304         } else {
 305                 /* Allocate a dummy fcport structure, since functions
 306                  * preparing the IOCB and mailbox command retrieves port
 307                  * specific information from fcport structure. For Host based
 308                  * ELS commands there will be no fcport structure allocated
 309                  */
 310                 fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
 311                 if (!fcport) {
 312                         rval = -ENOMEM;
 313                         goto done;
 314                 }
 315
 316                 /* Initialize all required  fields of fcport */
 317                 fcport->vha = vha;
 318                 fcport->d_id.b.al_pa =
 319                         bsg_job->request->rqst_data.h_els.port_id[0];
 320                 fcport->d_id.b.area =
 321                         bsg_job->request->rqst_data.h_els.port_id[1];
 322                 fcport->d_id.b.domain =
 323                         bsg_job->request->rqst_data.h_els.port_id[2];
 324                 fcport->loop_id =
 325                         (fcport->d_id.b.al_pa == 0xFD) ?
 326                         NPH_FABRIC_CONTROLLER : NPH_F_PORT;
 327         }
 328
 329         if (!vha->flags.online) {
 330                 ql_log(ql_log_warn, vha, 0x7005, "Host not online.\n");
 331                 rval = -EIO;
 332                 goto done;
 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_HST_ELS_NOLOGIN)
 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         ql84_mgmt = (struct qla_bsg_a84_mgmt *)((char *)bsg_job->request +
1088                 sizeof(struct fc_bsg_request));
1089         if (!ql84_mgmt) {
1090                 ql_log(ql_log_warn, vha, 0x703b,
1091                     "MGMT header not provided, exiting.\n");
1092                 return -EINVAL;
1093         }
1094
1095         mn = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &mn_dma);
1096         if (!mn) {
1097                 ql_log(ql_log_warn, vha, 0x703c,
1098                     "DMA alloc failed for fw buffer.\n");
1099                 return -ENOMEM;
1100         }
1101
1102         memset(mn, 0, sizeof(struct access_chip_84xx));
1103         mn->entry_type = ACCESS_CHIP_IOCB_TYPE;
1104         mn->entry_count = 1;
1105
1106         switch (ql84_mgmt->mgmt.cmd) {
1107         case QLA84_MGMT_READ_MEM:
1108         case QLA84_MGMT_GET_INFO:
1109                 sg_cnt = dma_map_sg(&ha->pdev->dev,
1110                         bsg_job->reply_payload.sg_list,
1111                         bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1112                 if (!sg_cnt) {
1113                         ql_log(ql_log_warn, vha, 0x703d,
1114                             "dma_map_sg returned %d for reply.\n", sg_cnt);
1115                         rval = -ENOMEM;
1116                         goto exit_mgmt;
1117                 }
1118
1119                 dma_direction = DMA_FROM_DEVICE;
1120
1121                 if (sg_cnt != bsg_job->reply_payload.sg_cnt) {
1122                         ql_log(ql_log_warn, vha, 0x703e,
1123                             "DMA mapping resulted in different sg counts, "
1124                             "reply_sg_cnt: %x dma_reply_sg_cnt: %x.\n",
1125                             bsg_job->reply_payload.sg_cnt, sg_cnt);
1126                         rval = -EAGAIN;
1127                         goto done_unmap_sg;
1128                 }
1129
1130                 data_len = bsg_job->reply_payload.payload_len;
1131
1132                 mgmt_b = dma_alloc_coherent(&ha->pdev->dev, data_len,
1133                     &mgmt_dma, GFP_KERNEL);
1134                 if (!mgmt_b) {
1135                         ql_log(ql_log_warn, vha, 0x703f,
1136                             "DMA alloc failed for mgmt_b.\n");
1137                         rval = -ENOMEM;
1138                         goto done_unmap_sg;
1139                 }
1140
1141                 if (ql84_mgmt->mgmt.cmd == QLA84_MGMT_READ_MEM) {
1142                         mn->options = cpu_to_le16(ACO_DUMP_MEMORY);
1143                         mn->parameter1 =
1144                                 cpu_to_le32(
1145                                 ql84_mgmt->mgmt.mgmtp.u.mem.start_addr);
1146
1147                 } else if (ql84_mgmt->mgmt.cmd == QLA84_MGMT_GET_INFO) {
1148                         mn->options = cpu_to_le16(ACO_REQUEST_INFO);
1149                         mn->parameter1 =
1150                                 cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.info.type);
1151
1152                         mn->parameter2 =
1153                                 cpu_to_le32(
1154                                 ql84_mgmt->mgmt.mgmtp.u.info.context);
1155                 }
1156                 break;
1157
1158         case QLA84_MGMT_WRITE_MEM:
1159                 sg_cnt = dma_map_sg(&ha->pdev->dev,
1160                         bsg_job->request_payload.sg_list,
1161                         bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1162
1163                 if (!sg_cnt) {
1164                         ql_log(ql_log_warn, vha, 0x7040,
1165                             "dma_map_sg returned %d.\n", sg_cnt);
1166                         rval = -ENOMEM;
1167                         goto exit_mgmt;
1168                 }
1169
1170                 dma_direction = DMA_TO_DEVICE;
1171
1172                 if (sg_cnt != bsg_job->request_payload.sg_cnt) {
1173                         ql_log(ql_log_warn, vha, 0x7041,
1174                             "DMA mapping resulted in different sg counts, "
1175                             "request_sg_cnt: %x dma_request_sg_cnt: %x.\n",
1176                             bsg_job->request_payload.sg_cnt, sg_cnt);
1177                         rval = -EAGAIN;
1178                         goto done_unmap_sg;
1179                 }
1180
1181                 data_len = bsg_job->request_payload.payload_len;
1182                 mgmt_b = dma_alloc_coherent(&ha->pdev->dev, data_len,
1183                         &mgmt_dma, GFP_KERNEL);
1184                 if (!mgmt_b) {
1185                         ql_log(ql_log_warn, vha, 0x7042,
1186                             "DMA alloc failed for mgmt_b.\n");
1187                         rval = -ENOMEM;
1188                         goto done_unmap_sg;
1189                 }
1190
1191                 sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1192                         bsg_job->request_payload.sg_cnt, mgmt_b, data_len);
1193
1194                 mn->options = cpu_to_le16(ACO_LOAD_MEMORY);
1195                 mn->parameter1 =
1196                         cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.mem.start_addr);
1197                 break;
1198
1199         case QLA84_MGMT_CHNG_CONFIG:
1200                 mn->options = cpu_to_le16(ACO_CHANGE_CONFIG_PARAM);
1201                 mn->parameter1 =
1202                         cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.config.id);
1203
1204                 mn->parameter2 =
1205                         cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.config.param0);
1206
1207                 mn->parameter3 =
1208                         cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.config.param1);
1209                 break;
1210
1211         default:
1212                 rval = -EIO;
1213                 goto exit_mgmt;
1214         }
1215
1216         if (ql84_mgmt->mgmt.cmd != QLA84_MGMT_CHNG_CONFIG) {
1217                 mn->total_byte_cnt = cpu_to_le32(ql84_mgmt->mgmt.len);
1218                 mn->dseg_count = cpu_to_le16(1);
1219                 mn->dseg_address[0] = cpu_to_le32(LSD(mgmt_dma));
1220                 mn->dseg_address[1] = cpu_to_le32(MSD(mgmt_dma));
1221                 mn->dseg_length = cpu_to_le32(ql84_mgmt->mgmt.len);
1222         }
1223
1224         rval = qla2x00_issue_iocb(vha, mn, mn_dma, 0);
1225
1226         if (rval) {
1227                 ql_log(ql_log_warn, vha, 0x7043,
1228                     "Vendor request 84xx mgmt failed.\n");
1229
1230                 rval = (DID_ERROR << 16);
1231
1232         } else {
1233                 ql_dbg(ql_dbg_user, vha, 0x7044,
1234                     "Vendor request 84xx mgmt completed.\n");
1235
1236                 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1237                 bsg_job->reply->result = DID_OK;
1238
1239                 if ((ql84_mgmt->mgmt.cmd == QLA84_MGMT_READ_MEM) ||
1240                         (ql84_mgmt->mgmt.cmd == QLA84_MGMT_GET_INFO)) {
1241                         bsg_job->reply->reply_payload_rcv_len =
1242                                 bsg_job->reply_payload.payload_len;
1243
1244                         sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
1245                                 bsg_job->reply_payload.sg_cnt, mgmt_b,
1246                                 data_len);
1247                 }
1248         }
1249
1250 done_unmap_sg:
1251         if (mgmt_b)
1252                 dma_free_coherent(&ha->pdev->dev, data_len, mgmt_b, mgmt_dma);
1253
1254         if (dma_direction == DMA_TO_DEVICE)
1255                 dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
1256                         bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1257         else if (dma_direction == DMA_FROM_DEVICE)
1258                 dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
1259                         bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1260
1261 exit_mgmt:
1262         dma_pool_free(ha->s_dma_pool, mn, mn_dma);
1263
1264         if (!rval)
1265                 bsg_job->job_done(bsg_job);
1266         return rval;
1267 }
1268
1269 static int
1270 qla24xx_iidma(struct fc_bsg_job *bsg_job)
1271 {
1272         struct Scsi_Host *host = bsg_job->shost;
1273         scsi_qla_host_t *vha = shost_priv(host);
1274         int rval = 0;
1275         struct qla_port_param *port_param = NULL;
1276         fc_port_t *fcport = NULL;
1277         uint16_t mb[MAILBOX_REGISTER_COUNT];
1278         uint8_t *rsp_ptr = NULL;
1279
1280         if (!IS_IIDMA_CAPABLE(vha->hw)) {
1281                 ql_log(ql_log_info, vha, 0x7046, "iiDMA not supported.\n");
1282                 return -EINVAL;
1283         }
1284
1285         port_param = (struct qla_port_param *)((char *)bsg_job->request +
1286                 sizeof(struct fc_bsg_request));
1287         if (!port_param) {
1288                 ql_log(ql_log_warn, vha, 0x7047,
1289                     "port_param header not provided.\n");
1290                 return -EINVAL;
1291         }
1292
1293         if (port_param->fc_scsi_addr.dest_type != EXT_DEF_TYPE_WWPN) {
1294                 ql_log(ql_log_warn, vha, 0x7048,
1295                     "Invalid destination type.\n");
1296                 return -EINVAL;
1297         }
1298
1299         list_for_each_entry(fcport, &vha->vp_fcports, list) {
1300                 if (fcport->port_type != FCT_TARGET)
1301                         continue;
1302
1303                 if (memcmp(port_param->fc_scsi_addr.dest_addr.wwpn,
1304                         fcport->port_name, sizeof(fcport->port_name)))
1305                         continue;
1306                 break;
1307         }
1308
1309         if (!fcport) {
1310                 ql_log(ql_log_warn, vha, 0x7049,
1311                     "Failed to find port.\n");
1312                 return -EINVAL;
1313         }
1314
1315         if (atomic_read(&fcport->state) != FCS_ONLINE) {
1316                 ql_log(ql_log_warn, vha, 0x704a,
1317                     "Port is not online.\n");
1318                 return -EINVAL;
1319         }
1320
1321         if (fcport->flags & FCF_LOGIN_NEEDED) {
1322                 ql_log(ql_log_warn, vha, 0x704b,
1323                     "Remote port not logged in flags = 0x%x.\n", fcport->flags);
1324                 return -EINVAL;
1325         }
1326
1327         if (port_param->mode)
1328                 rval = qla2x00_set_idma_speed(vha, fcport->loop_id,
1329                         port_param->speed, mb);
1330         else
1331                 rval = qla2x00_get_idma_speed(vha, fcport->loop_id,
1332                         &port_param->speed, mb);
1333
1334         if (rval) {
1335                 ql_log(ql_log_warn, vha, 0x704c,
1336                     "iIDMA cmd failed for %02x%02x%02x%02x%02x%02x%02x%02x -- "
1337                     "%04x %x %04x %04x.\n", fcport->port_name[0],
1338                     fcport->port_name[1], fcport->port_name[2],
1339                     fcport->port_name[3], fcport->port_name[4],
1340                     fcport->port_name[5], fcport->port_name[6],
1341                     fcport->port_name[7], rval, fcport->fp_speed, mb[0], mb[1]);
1342                 rval = (DID_ERROR << 16);
1343         } else {
1344                 if (!port_param->mode) {
1345                         bsg_job->reply_len = sizeof(struct fc_bsg_reply) +
1346                                 sizeof(struct qla_port_param);
1347
1348                         rsp_ptr = ((uint8_t *)bsg_job->reply) +
1349                                 sizeof(struct fc_bsg_reply);
1350
1351                         memcpy(rsp_ptr, port_param,
1352                                 sizeof(struct qla_port_param));
1353                 }
1354
1355                 bsg_job->reply->result = DID_OK;
1356                 bsg_job->job_done(bsg_job);
1357         }
1358
1359         return rval;
1360 }
1361
1362 static int
1363 qla2x00_optrom_setup(struct fc_bsg_job *bsg_job, scsi_qla_host_t *vha,
1364         uint8_t is_update)
1365 {
1366         uint32_t start = 0;
1367         int valid = 0;
1368         struct qla_hw_data *ha = vha->hw;
1369
1370         if (unlikely(pci_channel_offline(ha->pdev)))
1371                 return -EINVAL;
1372
1373         start = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
1374         if (start > ha->optrom_size) {
1375                 ql_log(ql_log_warn, vha, 0x7055,
1376                     "start %d > optrom_size %d.\n", start, ha->optrom_size);
1377                 return -EINVAL;
1378         }
1379
1380         if (ha->optrom_state != QLA_SWAITING) {
1381                 ql_log(ql_log_info, vha, 0x7056,
1382                     "optrom_state %d.\n", ha->optrom_state);
1383                 return -EBUSY;
1384         }
1385
1386         ha->optrom_region_start = start;
1387         ql_dbg(ql_dbg_user, vha, 0x7057, "is_update=%d.\n", is_update);
1388         if (is_update) {
1389                 if (ha->optrom_size == OPTROM_SIZE_2300 && start == 0)
1390                         valid = 1;
1391                 else if (start == (ha->flt_region_boot * 4) ||
1392                     start == (ha->flt_region_fw * 4))
1393                         valid = 1;
1394                 else if (IS_QLA24XX_TYPE(ha) || IS_QLA25XX(ha) ||
1395                     IS_CNA_CAPABLE(ha) || IS_QLA2031(ha))
1396                         valid = 1;
1397                 if (!valid) {
1398                         ql_log(ql_log_warn, vha, 0x7058,
1399                             "Invalid start region 0x%x/0x%x.\n", start,
1400                             bsg_job->request_payload.payload_len);
1401                         return -EINVAL;
1402                 }
1403
1404                 ha->optrom_region_size = start +
1405                     bsg_job->request_payload.payload_len > ha->optrom_size ?
1406                     ha->optrom_size - start :
1407                     bsg_job->request_payload.payload_len;
1408                 ha->optrom_state = QLA_SWRITING;
1409         } else {
1410                 ha->optrom_region_size = start +
1411                     bsg_job->reply_payload.payload_len > ha->optrom_size ?
1412                     ha->optrom_size - start :
1413                     bsg_job->reply_payload.payload_len;
1414                 ha->optrom_state = QLA_SREADING;
1415         }
1416
1417         ha->optrom_buffer = vmalloc(ha->optrom_region_size);
1418         if (!ha->optrom_buffer) {
1419                 ql_log(ql_log_warn, vha, 0x7059,
1420                     "Read: Unable to allocate memory for optrom retrieval "
1421                     "(%x)\n", ha->optrom_region_size);
1422
1423                 ha->optrom_state = QLA_SWAITING;
1424                 return -ENOMEM;
1425         }
1426
1427         memset(ha->optrom_buffer, 0, ha->optrom_region_size);
1428         return 0;
1429 }
1430
1431 static int
1432 qla2x00_read_optrom(struct fc_bsg_job *bsg_job)
1433 {
1434         struct Scsi_Host *host = bsg_job->shost;
1435         scsi_qla_host_t *vha = shost_priv(host);
1436         struct qla_hw_data *ha = vha->hw;
1437         int rval = 0;
1438
1439         if (ha->flags.nic_core_reset_hdlr_active)
1440                 return -EBUSY;
1441
1442         rval = qla2x00_optrom_setup(bsg_job, vha, 0);
1443         if (rval)
1444                 return rval;
1445
1446         ha->isp_ops->read_optrom(vha, ha->optrom_buffer,
1447             ha->optrom_region_start, ha->optrom_region_size);
1448
1449         sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
1450             bsg_job->reply_payload.sg_cnt, ha->optrom_buffer,
1451             ha->optrom_region_size);
1452
1453         bsg_job->reply->reply_payload_rcv_len = ha->optrom_region_size;
1454         bsg_job->reply->result = DID_OK;
1455         vfree(ha->optrom_buffer);
1456         ha->optrom_buffer = NULL;
1457         ha->optrom_state = QLA_SWAITING;
1458         bsg_job->job_done(bsg_job);
1459         return rval;
1460 }
1461
1462 static int
1463 qla2x00_update_optrom(struct fc_bsg_job *bsg_job)
1464 {
1465         struct Scsi_Host *host = bsg_job->shost;
1466         scsi_qla_host_t *vha = shost_priv(host);
1467         struct qla_hw_data *ha = vha->hw;
1468         int rval = 0;
1469
1470         rval = qla2x00_optrom_setup(bsg_job, vha, 1);
1471         if (rval)
1472                 return rval;
1473
1474         /* Set the isp82xx_no_md_cap not to capture minidump */
1475         ha->flags.isp82xx_no_md_cap = 1;
1476
1477         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1478             bsg_job->request_payload.sg_cnt, ha->optrom_buffer,
1479             ha->optrom_region_size);
1480
1481         ha->isp_ops->write_optrom(vha, ha->optrom_buffer,
1482             ha->optrom_region_start, ha->optrom_region_size);
1483
1484         bsg_job->reply->result = DID_OK;
1485         vfree(ha->optrom_buffer);
1486         ha->optrom_buffer = NULL;
1487         ha->optrom_state = QLA_SWAITING;
1488         bsg_job->job_done(bsg_job);
1489         return rval;
1490 }
1491
1492 static int
1493 qla2x00_update_fru_versions(struct fc_bsg_job *bsg_job)
1494 {
1495         struct Scsi_Host *host = bsg_job->shost;
1496         scsi_qla_host_t *vha = shost_priv(host);
1497         struct qla_hw_data *ha = vha->hw;
1498         int rval = 0;
1499         uint8_t bsg[DMA_POOL_SIZE];
1500         struct qla_image_version_list *list = (void *)bsg;
1501         struct qla_image_version *image;
1502         uint32_t count;
1503         dma_addr_t sfp_dma;
1504         void *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1505         if (!sfp) {
1506                 bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1507                     EXT_STATUS_NO_MEMORY;
1508                 goto done;
1509         }
1510
1511         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1512             bsg_job->request_payload.sg_cnt, list, sizeof(bsg));
1513
1514         image = list->version;
1515         count = list->count;
1516         while (count--) {
1517                 memcpy(sfp, &image->field_info, sizeof(image->field_info));
1518                 rval = qla2x00_write_sfp(vha, sfp_dma, sfp,
1519                     image->field_address.device, image->field_address.offset,
1520                     sizeof(image->field_info), image->field_address.option);
1521                 if (rval) {
1522                         bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1523                             EXT_STATUS_MAILBOX;
1524                         goto dealloc;
1525                 }
1526                 image++;
1527         }
1528
1529         bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1530
1531 dealloc:
1532         dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1533
1534 done:
1535         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1536         bsg_job->reply->result = DID_OK << 16;
1537         bsg_job->job_done(bsg_job);
1538
1539         return 0;
1540 }
1541
1542 static int
1543 qla2x00_read_fru_status(struct fc_bsg_job *bsg_job)
1544 {
1545         struct Scsi_Host *host = bsg_job->shost;
1546         scsi_qla_host_t *vha = shost_priv(host);
1547         struct qla_hw_data *ha = vha->hw;
1548         int rval = 0;
1549         uint8_t bsg[DMA_POOL_SIZE];
1550         struct qla_status_reg *sr = (void *)bsg;
1551         dma_addr_t sfp_dma;
1552         uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1553         if (!sfp) {
1554                 bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1555                     EXT_STATUS_NO_MEMORY;
1556                 goto done;
1557         }
1558
1559         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1560             bsg_job->request_payload.sg_cnt, sr, sizeof(*sr));
1561
1562         rval = qla2x00_read_sfp(vha, sfp_dma, sfp,
1563             sr->field_address.device, sr->field_address.offset,
1564             sizeof(sr->status_reg), sr->field_address.option);
1565         sr->status_reg = *sfp;
1566
1567         if (rval) {
1568                 bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1569                     EXT_STATUS_MAILBOX;
1570                 goto dealloc;
1571         }
1572
1573         sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
1574             bsg_job->reply_payload.sg_cnt, sr, sizeof(*sr));
1575
1576         bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1577
1578 dealloc:
1579         dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1580
1581 done:
1582         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1583         bsg_job->reply->reply_payload_rcv_len = sizeof(*sr);
1584         bsg_job->reply->result = DID_OK << 16;
1585         bsg_job->job_done(bsg_job);
1586
1587         return 0;
1588 }
1589
1590 static int
1591 qla2x00_write_fru_status(struct fc_bsg_job *bsg_job)
1592 {
1593         struct Scsi_Host *host = bsg_job->shost;
1594         scsi_qla_host_t *vha = shost_priv(host);
1595         struct qla_hw_data *ha = vha->hw;
1596         int rval = 0;
1597         uint8_t bsg[DMA_POOL_SIZE];
1598         struct qla_status_reg *sr = (void *)bsg;
1599         dma_addr_t sfp_dma;
1600         uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1601         if (!sfp) {
1602                 bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1603                     EXT_STATUS_NO_MEMORY;
1604                 goto done;
1605         }
1606
1607         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1608             bsg_job->request_payload.sg_cnt, sr, sizeof(*sr));
1609
1610         *sfp = sr->status_reg;
1611         rval = qla2x00_write_sfp(vha, sfp_dma, sfp,
1612             sr->field_address.device, sr->field_address.offset,
1613             sizeof(sr->status_reg), sr->field_address.option);
1614
1615         if (rval) {
1616                 bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1617                     EXT_STATUS_MAILBOX;
1618                 goto dealloc;
1619         }
1620
1621         bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1622
1623 dealloc:
1624         dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1625
1626 done:
1627         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1628         bsg_job->reply->result = DID_OK << 16;
1629         bsg_job->job_done(bsg_job);
1630
1631         return 0;
1632 }
1633
1634 static int
1635 qla2x00_write_i2c(struct fc_bsg_job *bsg_job)
1636 {
1637         struct Scsi_Host *host = bsg_job->shost;
1638         scsi_qla_host_t *vha = shost_priv(host);
1639         struct qla_hw_data *ha = vha->hw;
1640         int rval = 0;
1641         uint8_t bsg[DMA_POOL_SIZE];
1642         struct qla_i2c_access *i2c = (void *)bsg;
1643         dma_addr_t sfp_dma;
1644         uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1645         if (!sfp) {
1646                 bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1647                     EXT_STATUS_NO_MEMORY;
1648                 goto done;
1649         }
1650
1651         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1652             bsg_job->request_payload.sg_cnt, i2c, sizeof(*i2c));
1653
1654         memcpy(sfp, i2c->buffer, i2c->length);
1655         rval = qla2x00_write_sfp(vha, sfp_dma, sfp,
1656             i2c->device, i2c->offset, i2c->length, i2c->option);
1657
1658         if (rval) {
1659                 bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1660                     EXT_STATUS_MAILBOX;
1661                 goto dealloc;
1662         }
1663
1664         bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1665
1666 dealloc:
1667         dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1668
1669 done:
1670         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1671         bsg_job->reply->result = DID_OK << 16;
1672         bsg_job->job_done(bsg_job);
1673
1674         return 0;
1675 }
1676
1677 static int
1678 qla2x00_read_i2c(struct fc_bsg_job *bsg_job)
1679 {
1680         struct Scsi_Host *host = bsg_job->shost;
1681         scsi_qla_host_t *vha = shost_priv(host);
1682         struct qla_hw_data *ha = vha->hw;
1683         int rval = 0;
1684         uint8_t bsg[DMA_POOL_SIZE];
1685         struct qla_i2c_access *i2c = (void *)bsg;
1686         dma_addr_t sfp_dma;
1687         uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1688         if (!sfp) {
1689                 bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1690                     EXT_STATUS_NO_MEMORY;
1691                 goto done;
1692         }
1693
1694         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1695             bsg_job->request_payload.sg_cnt, i2c, sizeof(*i2c));
1696
1697         rval = qla2x00_read_sfp(vha, sfp_dma, sfp,
1698                 i2c->device, i2c->offset, i2c->length, i2c->option);
1699
1700         if (rval) {
1701                 bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
1702                     EXT_STATUS_MAILBOX;
1703                 goto dealloc;
1704         }
1705
1706         memcpy(i2c->buffer, sfp, i2c->length);
1707         sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
1708             bsg_job->reply_payload.sg_cnt, i2c, sizeof(*i2c));
1709
1710         bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1711
1712 dealloc:
1713         dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1714
1715 done:
1716         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1717         bsg_job->reply->reply_payload_rcv_len = sizeof(*i2c);
1718         bsg_job->reply->result = DID_OK << 16;
1719         bsg_job->job_done(bsg_job);
1720
1721         return 0;
1722 }
1723
1724 static int
1725 qla24xx_process_bidir_cmd(struct fc_bsg_job *bsg_job)
1726 {
1727         struct Scsi_Host *host = bsg_job->shost;
1728         scsi_qla_host_t *vha = shost_priv(host);
1729         struct qla_hw_data *ha = vha->hw;
1730         uint16_t thread_id;
1731         uint32_t rval = EXT_STATUS_OK;
1732         uint16_t req_sg_cnt = 0;
1733         uint16_t rsp_sg_cnt = 0;
1734         uint16_t nextlid = 0;
1735         uint32_t tot_dsds;
1736         srb_t *sp = NULL;
1737         uint32_t req_data_len = 0;
1738         uint32_t rsp_data_len = 0;
1739
1740         /* Check the type of the adapter */
1741         if (!IS_BIDI_CAPABLE(ha)) {
1742                 ql_log(ql_log_warn, vha, 0x70a0,
1743                         "This adapter is not supported\n");
1744                 rval = EXT_STATUS_NOT_SUPPORTED;
1745                 goto done;
1746         }
1747
1748         if (test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
1749                 test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) ||
1750                 test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
1751                 rval =  EXT_STATUS_BUSY;
1752                 goto done;
1753         }
1754
1755         /* Check if host is online */
1756         if (!vha->flags.online) {
1757                 ql_log(ql_log_warn, vha, 0x70a1,
1758                         "Host is not online\n");
1759                 rval = EXT_STATUS_DEVICE_OFFLINE;
1760                 goto done;
1761         }
1762
1763         /* Check if cable is plugged in or not */
1764         if (vha->device_flags & DFLG_NO_CABLE) {
1765                 ql_log(ql_log_warn, vha, 0x70a2,
1766                         "Cable is unplugged...\n");
1767                 rval = EXT_STATUS_INVALID_CFG;
1768                 goto done;
1769         }
1770
1771         /* Check if the switch is connected or not */
1772         if (ha->current_topology != ISP_CFG_F) {
1773                 ql_log(ql_log_warn, vha, 0x70a3,
1774                         "Host is not connected to the switch\n");
1775                 rval = EXT_STATUS_INVALID_CFG;
1776                 goto done;
1777         }
1778
1779         /* Check if operating mode is P2P */
1780         if (ha->operating_mode != P2P) {
1781                 ql_log(ql_log_warn, vha, 0x70a4,
1782                     "Host is operating mode is not P2p\n");
1783                 rval = EXT_STATUS_INVALID_CFG;
1784                 goto done;
1785         }
1786
1787         thread_id = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
1788
1789         mutex_lock(&ha->selflogin_lock);
1790         if (vha->self_login_loop_id == 0) {
1791                 /* Initialize all required  fields of fcport */
1792                 vha->bidir_fcport.vha = vha;
1793                 vha->bidir_fcport.d_id.b.al_pa = vha->d_id.b.al_pa;
1794                 vha->bidir_fcport.d_id.b.area = vha->d_id.b.area;
1795                 vha->bidir_fcport.d_id.b.domain = vha->d_id.b.domain;
1796                 vha->bidir_fcport.loop_id = vha->loop_id;
1797
1798                 if (qla2x00_fabric_login(vha, &(vha->bidir_fcport), &nextlid)) {
1799                         ql_log(ql_log_warn, vha, 0x70a7,
1800                             "Failed to login port %06X for bidirectional IOCB\n",
1801                             vha->bidir_fcport.d_id.b24);
1802                         mutex_unlock(&ha->selflogin_lock);
1803                         rval = EXT_STATUS_MAILBOX;
1804                         goto done;
1805                 }
1806                 vha->self_login_loop_id = nextlid - 1;
1807
1808         }
1809         /* Assign the self login loop id to fcport */
1810         mutex_unlock(&ha->selflogin_lock);
1811
1812         vha->bidir_fcport.loop_id = vha->self_login_loop_id;
1813
1814         req_sg_cnt = dma_map_sg(&ha->pdev->dev,
1815                 bsg_job->request_payload.sg_list,
1816                 bsg_job->request_payload.sg_cnt,
1817                 DMA_TO_DEVICE);
1818
1819         if (!req_sg_cnt) {
1820                 rval = EXT_STATUS_NO_MEMORY;
1821                 goto done;
1822         }
1823
1824         rsp_sg_cnt = dma_map_sg(&ha->pdev->dev,
1825                 bsg_job->reply_payload.sg_list, bsg_job->reply_payload.sg_cnt,
1826                 DMA_FROM_DEVICE);
1827
1828         if (!rsp_sg_cnt) {
1829                 rval = EXT_STATUS_NO_MEMORY;
1830                 goto done_unmap_req_sg;
1831         }
1832
1833         if ((req_sg_cnt !=  bsg_job->request_payload.sg_cnt) ||
1834                 (rsp_sg_cnt != bsg_job->reply_payload.sg_cnt)) {
1835                 ql_dbg(ql_dbg_user, vha, 0x70a9,
1836                     "Dma mapping resulted in different sg counts "
1837                     "[request_sg_cnt: %x dma_request_sg_cnt: %x reply_sg_cnt: "
1838                     "%x dma_reply_sg_cnt: %x]\n",
1839                     bsg_job->request_payload.sg_cnt, req_sg_cnt,
1840                     bsg_job->reply_payload.sg_cnt, rsp_sg_cnt);
1841                 rval = EXT_STATUS_NO_MEMORY;
1842                 goto done_unmap_sg;
1843         }
1844
1845         if (req_data_len != rsp_data_len) {
1846                 rval = EXT_STATUS_BUSY;
1847                 ql_log(ql_log_warn, vha, 0x70aa,
1848                     "req_data_len != rsp_data_len\n");
1849                 goto done_unmap_sg;
1850         }
1851
1852         req_data_len = bsg_job->request_payload.payload_len;
1853         rsp_data_len = bsg_job->reply_payload.payload_len;
1854
1855
1856         /* Alloc SRB structure */
1857         sp = qla2x00_get_sp(vha, &(vha->bidir_fcport), GFP_KERNEL);
1858         if (!sp) {
1859                 ql_dbg(ql_dbg_user, vha, 0x70ac,
1860                     "Alloc SRB structure failed\n");
1861                 rval = EXT_STATUS_NO_MEMORY;
1862                 goto done_unmap_sg;
1863         }
1864
1865         /*Populate srb->ctx with bidir ctx*/
1866         sp->u.bsg_job = bsg_job;
1867         sp->free = qla2x00_bsg_sp_free;
1868         sp->type = SRB_BIDI_CMD;
1869         sp->done = qla2x00_bsg_job_done;
1870
1871         /* Add the read and write sg count */
1872         tot_dsds = rsp_sg_cnt + req_sg_cnt;
1873
1874         rval = qla2x00_start_bidir(sp, vha, tot_dsds);
1875         if (rval != EXT_STATUS_OK)
1876                 goto done_free_srb;
1877         /* the bsg request  will be completed in the interrupt handler */
1878         return rval;
1879
1880 done_free_srb:
1881         mempool_free(sp, ha->srb_mempool);
1882 done_unmap_sg:
1883         dma_unmap_sg(&ha->pdev->dev,
1884             bsg_job->reply_payload.sg_list,
1885             bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1886 done_unmap_req_sg:
1887         dma_unmap_sg(&ha->pdev->dev,
1888             bsg_job->request_payload.sg_list,
1889             bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1890 done:
1891
1892         /* Return an error vendor specific response
1893          * and complete the bsg request
1894          */
1895         bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
1896         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1897         bsg_job->reply->reply_payload_rcv_len = 0;
1898         bsg_job->reply->result = (DID_OK) << 16;
1899         bsg_job->job_done(bsg_job);
1900         /* Always retrun success, vendor rsp carries correct status */
1901         return 0;
1902 }
1903
1904 static int
1905 qlafx00_mgmt_cmd(struct fc_bsg_job *bsg_job)
1906 {
1907         struct Scsi_Host *host = bsg_job->shost;
1908         scsi_qla_host_t *vha = shost_priv(host);
1909         struct qla_hw_data *ha = vha->hw;
1910         int rval = (DRIVER_ERROR << 16);
1911         struct qla_mt_iocb_rqst_fx00 *piocb_rqst;
1912         srb_t *sp;
1913         int req_sg_cnt = 0, rsp_sg_cnt = 0;
1914         struct fc_port *fcport;
1915         char  *type = "FC_BSG_HST_FX_MGMT";
1916
1917         /* Copy the IOCB specific information */
1918         piocb_rqst = (struct qla_mt_iocb_rqst_fx00 *)
1919             &bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
1920
1921         /* Dump the vendor information */
1922         ql_dump_buffer(ql_dbg_user + ql_dbg_verbose , vha, 0x70cf,
1923             (uint8_t *)piocb_rqst, sizeof(struct qla_mt_iocb_rqst_fx00));
1924
1925         if (!vha->flags.online) {
1926                 ql_log(ql_log_warn, vha, 0x70d0,
1927                     "Host is not online.\n");
1928                 rval = -EIO;
1929                 goto done;
1930         }
1931
1932         if (piocb_rqst->flags & SRB_FXDISC_REQ_DMA_VALID) {
1933                 req_sg_cnt = dma_map_sg(&ha->pdev->dev,
1934                     bsg_job->request_payload.sg_list,
1935                     bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1936                 if (!req_sg_cnt) {
1937                         ql_log(ql_log_warn, vha, 0x70c7,
1938                             "dma_map_sg return %d for request\n", req_sg_cnt);
1939                         rval = -ENOMEM;
1940                         goto done;
1941                 }
1942         }
1943
1944         if (piocb_rqst->flags & SRB_FXDISC_RESP_DMA_VALID) {
1945                 rsp_sg_cnt = dma_map_sg(&ha->pdev->dev,
1946                     bsg_job->reply_payload.sg_list,
1947                     bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1948                 if (!rsp_sg_cnt) {
1949                         ql_log(ql_log_warn, vha, 0x70c8,
1950                             "dma_map_sg return %d for reply\n", rsp_sg_cnt);
1951                         rval = -ENOMEM;
1952                         goto done_unmap_req_sg;
1953                 }
1954         }
1955
1956         ql_dbg(ql_dbg_user, vha, 0x70c9,
1957             "request_sg_cnt: %x dma_request_sg_cnt: %x reply_sg_cnt:%x "
1958             "dma_reply_sg_cnt: %x\n", bsg_job->request_payload.sg_cnt,
1959             req_sg_cnt, bsg_job->reply_payload.sg_cnt, rsp_sg_cnt);
1960
1961         /* Allocate a dummy fcport structure, since functions preparing the
1962          * IOCB and mailbox command retrieves port specific information
1963          * from fcport structure. For Host based ELS commands there will be
1964          * no fcport structure allocated
1965          */
1966         fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
1967         if (!fcport) {
1968                 ql_log(ql_log_warn, vha, 0x70ca,
1969                     "Failed to allocate fcport.\n");
1970                 rval = -ENOMEM;
1971                 goto done_unmap_rsp_sg;
1972         }
1973
1974         /* Alloc SRB structure */
1975         sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1976         if (!sp) {
1977                 ql_log(ql_log_warn, vha, 0x70cb,
1978                     "qla2x00_get_sp failed.\n");
1979                 rval = -ENOMEM;
1980                 goto done_free_fcport;
1981         }
1982
1983         /* Initialize all required  fields of fcport */
1984         fcport->vha = vha;
1985         fcport->loop_id = piocb_rqst->dataword;
1986
1987         sp->type = SRB_FXIOCB_BCMD;
1988         sp->name = "bsg_fx_mgmt";
1989         sp->iocbs = qla24xx_calc_ct_iocbs(req_sg_cnt + rsp_sg_cnt);
1990         sp->u.bsg_job = bsg_job;
1991         sp->free = qla2x00_bsg_sp_free;
1992         sp->done = qla2x00_bsg_job_done;
1993
1994         ql_dbg(ql_dbg_user, vha, 0x70cc,
1995             "bsg rqst type: %s fx_mgmt_type: %x id=%x\n",
1996             type, piocb_rqst->func_type, fcport->loop_id);
1997
1998         rval = qla2x00_start_sp(sp);
1999         if (rval != QLA_SUCCESS) {
2000                 ql_log(ql_log_warn, vha, 0x70cd,
2001                     "qla2x00_start_sp failed=%d.\n", rval);
2002                 mempool_free(sp, ha->srb_mempool);
2003                 rval = -EIO;
2004                 goto done_free_fcport;
2005         }
2006         return rval;
2007
2008 done_free_fcport:
2009         kfree(fcport);
2010
2011 done_unmap_rsp_sg:
2012         if (piocb_rqst->flags & SRB_FXDISC_RESP_DMA_VALID)
2013                 dma_unmap_sg(&ha->pdev->dev,
2014                     bsg_job->reply_payload.sg_list,
2015                     bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
2016 done_unmap_req_sg:
2017         if (piocb_rqst->flags & SRB_FXDISC_REQ_DMA_VALID)
2018                 dma_unmap_sg(&ha->pdev->dev,
2019                     bsg_job->request_payload.sg_list,
2020                     bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
2021
2022 done:
2023         return rval;
2024 }
2025
2026 static int
2027 qla2x00_process_vendor_specific(struct fc_bsg_job *bsg_job)
2028 {
2029         switch (bsg_job->request->rqst_data.h_vendor.vendor_cmd[0]) {
2030         case QL_VND_LOOPBACK:
2031                 return qla2x00_process_loopback(bsg_job);
2032
2033         case QL_VND_A84_RESET:
2034                 return qla84xx_reset(bsg_job);
2035
2036         case QL_VND_A84_UPDATE_FW:
2037                 return qla84xx_updatefw(bsg_job);
2038
2039         case QL_VND_A84_MGMT_CMD:
2040                 return qla84xx_mgmt_cmd(bsg_job);
2041
2042         case QL_VND_IIDMA:
2043                 return qla24xx_iidma(bsg_job);
2044
2045         case QL_VND_FCP_PRIO_CFG_CMD:
2046                 return qla24xx_proc_fcp_prio_cfg_cmd(bsg_job);
2047
2048         case QL_VND_READ_FLASH:
2049                 return qla2x00_read_optrom(bsg_job);
2050
2051         case QL_VND_UPDATE_FLASH:
2052                 return qla2x00_update_optrom(bsg_job);
2053
2054         case QL_VND_SET_FRU_VERSION:
2055                 return qla2x00_update_fru_versions(bsg_job);
2056
2057         case QL_VND_READ_FRU_STATUS:
2058                 return qla2x00_read_fru_status(bsg_job);
2059
2060         case QL_VND_WRITE_FRU_STATUS:
2061                 return qla2x00_write_fru_status(bsg_job);
2062
2063         case QL_VND_WRITE_I2C:
2064                 return qla2x00_write_i2c(bsg_job);
2065
2066         case QL_VND_READ_I2C:
2067                 return qla2x00_read_i2c(bsg_job);
2068
2069         case QL_VND_DIAG_IO_CMD:
2070                 return qla24xx_process_bidir_cmd(bsg_job);
2071
2072         case QL_VND_FX00_MGMT_CMD:
2073                 return qlafx00_mgmt_cmd(bsg_job);
2074         default:
2075                 return -ENOSYS;
2076         }
2077 }
2078
2079 int
2080 qla24xx_bsg_request(struct fc_bsg_job *bsg_job)
2081 {
2082         int ret = -EINVAL;
2083         struct fc_rport *rport;
2084         fc_port_t *fcport = NULL;
2085         struct Scsi_Host *host;
2086         scsi_qla_host_t *vha;
2087
2088         /* In case no data transferred. */
2089         bsg_job->reply->reply_payload_rcv_len = 0;
2090
2091         if (bsg_job->request->msgcode == FC_BSG_RPT_ELS) {
2092                 rport = bsg_job->rport;
2093                 fcport = *(fc_port_t **) rport->dd_data;
2094                 host = rport_to_shost(rport);
2095                 vha = shost_priv(host);
2096         } else {
2097                 host = bsg_job->shost;
2098                 vha = shost_priv(host);
2099         }
2100
2101         if (qla2x00_reset_active(vha)) {
2102                 ql_dbg(ql_dbg_user, vha, 0x709f,
2103                     "BSG: ISP abort active/needed -- cmd=%d.\n",
2104                     bsg_job->request->msgcode);
2105                 return -EBUSY;
2106         }
2107
2108         ql_dbg(ql_dbg_user, vha, 0x7000,
2109             "Entered %s msgcode=0x%x.\n", __func__, bsg_job->request->msgcode);
2110
2111         switch (bsg_job->request->msgcode) {
2112         case FC_BSG_RPT_ELS:
2113         case FC_BSG_HST_ELS_NOLOGIN:
2114                 ret = qla2x00_process_els(bsg_job);
2115                 break;
2116         case FC_BSG_HST_CT:
2117                 ret = qla2x00_process_ct(bsg_job);
2118                 break;
2119         case FC_BSG_HST_VENDOR:
2120                 ret = qla2x00_process_vendor_specific(bsg_job);
2121                 break;
2122         case FC_BSG_HST_ADD_RPORT:
2123         case FC_BSG_HST_DEL_RPORT:
2124         case FC_BSG_RPT_CT:
2125         default:
2126                 ql_log(ql_log_warn, vha, 0x705a, "Unsupported BSG request.\n");
2127                 break;
2128         }
2129         return ret;
2130 }
2131
2132 int
2133 qla24xx_bsg_timeout(struct fc_bsg_job *bsg_job)
2134 {
2135         scsi_qla_host_t *vha = shost_priv(bsg_job->shost);
2136         struct qla_hw_data *ha = vha->hw;
2137         srb_t *sp;
2138         int cnt, que;
2139         unsigned long flags;
2140         struct req_que *req;
2141
2142         /* find the bsg job from the active list of commands */
2143         spin_lock_irqsave(&ha->hardware_lock, flags);
2144         for (que = 0; que < ha->max_req_queues; que++) {
2145                 req = ha->req_q_map[que];
2146                 if (!req)
2147                         continue;
2148
2149                 for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
2150                         sp = req->outstanding_cmds[cnt];
2151                         if (sp) {
2152                                 if (((sp->type == SRB_CT_CMD) ||
2153                                         (sp->type == SRB_ELS_CMD_HST) ||
2154                                         (sp->type == SRB_FXIOCB_BCMD))
2155                                         && (sp->u.bsg_job == bsg_job)) {
2156                                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2157                                         if (ha->isp_ops->abort_command(sp)) {
2158                                                 ql_log(ql_log_warn, vha, 0x7089,
2159                                                     "mbx abort_command "
2160                                                     "failed.\n");
2161                                                 bsg_job->req->errors =
2162                                                 bsg_job->reply->result = -EIO;
2163                                         } else {
2164                                                 ql_dbg(ql_dbg_user, vha, 0x708a,
2165                                                     "mbx abort_command "
2166                                                     "success.\n");
2167                                                 bsg_job->req->errors =
2168                                                 bsg_job->reply->result = 0;
2169                                         }
2170                                         spin_lock_irqsave(&ha->hardware_lock, flags);
2171                                         goto done;
2172                                 }
2173                         }
2174                 }
2175         }
2176         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2177         ql_log(ql_log_info, vha, 0x708b, "SRB not found to abort.\n");
2178         bsg_job->req->errors = bsg_job->reply->result = -ENXIO;
2179         return 0;
2180
2181 done:
2182         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2183         if (bsg_job->request->msgcode == FC_BSG_HST_CT)
2184                 kfree(sp->fcport);
2185         qla2x00_rel_sp(vha, sp);
2186         return 0;
2187 }