drivers/scsi/qla2xxx/qla_bsg.c

   1         /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2014 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 #include <linux/bsg-lib.h>
  13
  14 /* BSG support for ELS/CT pass through */
  15 void
  16 qla2x00_bsg_job_done(void *ptr, int res)
  17 {
  18         srb_t *sp = ptr;
  19         struct bsg_job *bsg_job = sp->u.bsg_job;
  20         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
  21
  22         bsg_reply->result = res;
  23         bsg_job_done(bsg_job, bsg_reply->result,
  24                        bsg_reply->reply_payload_rcv_len);
  25         sp->free(sp);
  26 }
  27
  28 void
  29 qla2x00_bsg_sp_free(void *ptr)
  30 {
  31         srb_t *sp = ptr;
  32         struct qla_hw_data *ha = sp->vha->hw;
  33         struct bsg_job *bsg_job = sp->u.bsg_job;
  34         struct fc_bsg_request *bsg_request = bsg_job->request;
  35         struct qla_mt_iocb_rqst_fx00 *piocb_rqst;
  36
  37         if (sp->type == SRB_FXIOCB_BCMD) {
  38                 piocb_rqst = (struct qla_mt_iocb_rqst_fx00 *)
  39                     &bsg_request->rqst_data.h_vendor.vendor_cmd[1];
  40
  41                 if (piocb_rqst->flags & SRB_FXDISC_REQ_DMA_VALID)
  42                         dma_unmap_sg(&ha->pdev->dev,
  43                             bsg_job->request_payload.sg_list,
  44                             bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
  45
  46                 if (piocb_rqst->flags & SRB_FXDISC_RESP_DMA_VALID)
  47                         dma_unmap_sg(&ha->pdev->dev,
  48                             bsg_job->reply_payload.sg_list,
  49                             bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
  50         } else {
  51                 dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
  52                     bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
  53
  54                 dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
  55                     bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
  56         }
  57
  58         if (sp->type == SRB_CT_CMD ||
  59             sp->type == SRB_FXIOCB_BCMD ||
  60             sp->type == SRB_ELS_CMD_HST)
  61                 kfree(sp->fcport);
  62         qla2x00_rel_sp(sp);
  63 }
  64
  65 int
  66 qla24xx_fcp_prio_cfg_valid(scsi_qla_host_t *vha,
  67         struct qla_fcp_prio_cfg *pri_cfg, uint8_t flag)
  68 {
  69         int i, ret, num_valid;
  70         uint8_t *bcode;
  71         struct qla_fcp_prio_entry *pri_entry;
  72         uint32_t *bcode_val_ptr, bcode_val;
  73
  74         ret = 1;
  75         num_valid = 0;
  76         bcode = (uint8_t *)pri_cfg;
  77         bcode_val_ptr = (uint32_t *)pri_cfg;
  78         bcode_val = (uint32_t)(*bcode_val_ptr);
  79
  80         if (bcode_val == 0xFFFFFFFF) {
  81                 /* No FCP Priority config data in flash */
  82                 ql_dbg(ql_dbg_user, vha, 0x7051,
  83                     "No FCP Priority config data.\n");
  84                 return 0;
  85         }
  86
  87         if (bcode[0] != 'H' || bcode[1] != 'Q' || bcode[2] != 'O' ||
  88                         bcode[3] != 'S') {
  89                 /* Invalid FCP priority data header*/
  90                 ql_dbg(ql_dbg_user, vha, 0x7052,
  91                     "Invalid FCP Priority data header. bcode=0x%x.\n",
  92                     bcode_val);
  93                 return 0;
  94         }
  95         if (flag != 1)
  96                 return ret;
  97
  98         pri_entry = &pri_cfg->entry[0];
  99         for (i = 0; i < pri_cfg->num_entries; i++) {
 100                 if (pri_entry->flags & FCP_PRIO_ENTRY_TAG_VALID)
 101                         num_valid++;
 102                 pri_entry++;
 103         }
 104
 105         if (num_valid == 0) {
 106                 /* No valid FCP priority data entries */
 107                 ql_dbg(ql_dbg_user, vha, 0x7053,
 108                     "No valid FCP Priority data entries.\n");
 109                 ret = 0;
 110         } else {
 111                 /* FCP priority data is valid */
 112                 ql_dbg(ql_dbg_user, vha, 0x7054,
 113                     "Valid FCP priority data. num entries = %d.\n",
 114                     num_valid);
 115         }
 116
 117         return ret;
 118 }
 119
 120 static int
 121 qla24xx_proc_fcp_prio_cfg_cmd(struct bsg_job *bsg_job)
 122 {
 123         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
 124         struct fc_bsg_request *bsg_request = bsg_job->request;
 125         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
 126         scsi_qla_host_t *vha = shost_priv(host);
 127         struct qla_hw_data *ha = vha->hw;
 128         int ret = 0;
 129         uint32_t len;
 130         uint32_t oper;
 131
 132         if (!(IS_QLA24XX_TYPE(ha) || IS_QLA25XX(ha) || IS_P3P_TYPE(ha))) {
 133                 ret = -EINVAL;
 134                 goto exit_fcp_prio_cfg;
 135         }
 136
 137         /* Get the sub command */
 138         oper = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
 139
 140         /* Only set config is allowed if config memory is not allocated */
 141         if (!ha->fcp_prio_cfg && (oper != QLFC_FCP_PRIO_SET_CONFIG)) {
 142                 ret = -EINVAL;
 143                 goto exit_fcp_prio_cfg;
 144         }
 145         switch (oper) {
 146         case QLFC_FCP_PRIO_DISABLE:
 147                 if (ha->flags.fcp_prio_enabled) {
 148                         ha->flags.fcp_prio_enabled = 0;
 149                         ha->fcp_prio_cfg->attributes &=
 150                                 ~FCP_PRIO_ATTR_ENABLE;
 151                         qla24xx_update_all_fcp_prio(vha);
 152                         bsg_reply->result = DID_OK;
 153                 } else {
 154                         ret = -EINVAL;
 155                         bsg_reply->result = (DID_ERROR << 16);
 156                         goto exit_fcp_prio_cfg;
 157                 }
 158                 break;
 159
 160         case QLFC_FCP_PRIO_ENABLE:
 161                 if (!ha->flags.fcp_prio_enabled) {
 162                         if (ha->fcp_prio_cfg) {
 163                                 ha->flags.fcp_prio_enabled = 1;
 164                                 ha->fcp_prio_cfg->attributes |=
 165                                     FCP_PRIO_ATTR_ENABLE;
 166                                 qla24xx_update_all_fcp_prio(vha);
 167                                 bsg_reply->result = DID_OK;
 168                         } else {
 169                                 ret = -EINVAL;
 170                                 bsg_reply->result = (DID_ERROR << 16);
 171                                 goto exit_fcp_prio_cfg;
 172                         }
 173                 }
 174                 break;
 175
 176         case QLFC_FCP_PRIO_GET_CONFIG:
 177                 len = bsg_job->reply_payload.payload_len;
 178                 if (!len || len > FCP_PRIO_CFG_SIZE) {
 179                         ret = -EINVAL;
 180                         bsg_reply->result = (DID_ERROR << 16);
 181                         goto exit_fcp_prio_cfg;
 182                 }
 183
 184                 bsg_reply->result = DID_OK;
 185                 bsg_reply->reply_payload_rcv_len =
 186                         sg_copy_from_buffer(
 187                         bsg_job->reply_payload.sg_list,
 188                         bsg_job->reply_payload.sg_cnt, ha->fcp_prio_cfg,
 189                         len);
 190
 191                 break;
 192
 193         case QLFC_FCP_PRIO_SET_CONFIG:
 194                 len = bsg_job->request_payload.payload_len;
 195                 if (!len || len > FCP_PRIO_CFG_SIZE) {
 196                         bsg_reply->result = (DID_ERROR << 16);
 197                         ret = -EINVAL;
 198                         goto exit_fcp_prio_cfg;
 199                 }
 200
 201                 if (!ha->fcp_prio_cfg) {
 202                         ha->fcp_prio_cfg = vmalloc(FCP_PRIO_CFG_SIZE);
 203                         if (!ha->fcp_prio_cfg) {
 204                                 ql_log(ql_log_warn, vha, 0x7050,
 205                                     "Unable to allocate memory for fcp prio "
 206                                     "config data (%x).\n", FCP_PRIO_CFG_SIZE);
 207                                 bsg_reply->result = (DID_ERROR << 16);
 208                                 ret = -ENOMEM;
 209                                 goto exit_fcp_prio_cfg;
 210                         }
 211                 }
 212
 213                 memset(ha->fcp_prio_cfg, 0, FCP_PRIO_CFG_SIZE);
 214                 sg_copy_to_buffer(bsg_job->request_payload.sg_list,
 215                 bsg_job->request_payload.sg_cnt, ha->fcp_prio_cfg,
 216                         FCP_PRIO_CFG_SIZE);
 217
 218                 /* validate fcp priority data */
 219
 220                 if (!qla24xx_fcp_prio_cfg_valid(vha,
 221                     (struct qla_fcp_prio_cfg *) ha->fcp_prio_cfg, 1)) {
 222                         bsg_reply->result = (DID_ERROR << 16);
 223                         ret = -EINVAL;
 224                         /* If buffer was invalidatic int
 225                          * fcp_prio_cfg is of no use
 226                          */
 227                         vfree(ha->fcp_prio_cfg);
 228                         ha->fcp_prio_cfg = NULL;
 229                         goto exit_fcp_prio_cfg;
 230                 }
 231
 232                 ha->flags.fcp_prio_enabled = 0;
 233                 if (ha->fcp_prio_cfg->attributes & FCP_PRIO_ATTR_ENABLE)
 234                         ha->flags.fcp_prio_enabled = 1;
 235                 qla24xx_update_all_fcp_prio(vha);
 236                 bsg_reply->result = DID_OK;
 237                 break;
 238         default:
 239                 ret = -EINVAL;
 240                 break;
 241         }
 242 exit_fcp_prio_cfg:
 243         if (!ret)
 244                 bsg_job_done(bsg_job, bsg_reply->result,
 245                                bsg_reply->reply_payload_rcv_len);
 246         return ret;
 247 }
 248
 249 static int
 250 qla2x00_process_els(struct bsg_job *bsg_job)
 251 {
 252         struct fc_bsg_request *bsg_request = bsg_job->request;
 253         struct fc_rport *rport;
 254         fc_port_t *fcport = NULL;
 255         struct Scsi_Host *host;
 256         scsi_qla_host_t *vha;
 257         struct qla_hw_data *ha;
 258         srb_t *sp;
 259         const char *type;
 260         int req_sg_cnt, rsp_sg_cnt;
 261         int rval =  (DRIVER_ERROR << 16);
 262         uint16_t nextlid = 0;
 263
 264         if (bsg_request->msgcode == FC_BSG_RPT_ELS) {
 265                 rport = fc_bsg_to_rport(bsg_job);
 266                 fcport = *(fc_port_t **) rport->dd_data;
 267                 host = rport_to_shost(rport);
 268                 vha = shost_priv(host);
 269                 ha = vha->hw;
 270                 type = "FC_BSG_RPT_ELS";
 271         } else {
 272                 host = fc_bsg_to_shost(bsg_job);
 273                 vha = shost_priv(host);
 274                 ha = vha->hw;
 275                 type = "FC_BSG_HST_ELS_NOLOGIN";
 276         }
 277
 278         if (!vha->flags.online) {
 279                 ql_log(ql_log_warn, vha, 0x7005, "Host not online.\n");
 280                 rval = -EIO;
 281                 goto done;
 282         }
 283
 284         /* pass through is supported only for ISP 4Gb or higher */
 285         if (!IS_FWI2_CAPABLE(ha)) {
 286                 ql_dbg(ql_dbg_user, vha, 0x7001,
 287                     "ELS passthru not supported for ISP23xx based adapters.\n");
 288                 rval = -EPERM;
 289                 goto done;
 290         }
 291
 292         /*  Multiple SG's are not supported for ELS requests */
 293         if (bsg_job->request_payload.sg_cnt > 1 ||
 294                 bsg_job->reply_payload.sg_cnt > 1) {
 295                 ql_dbg(ql_dbg_user, vha, 0x7002,
 296                     "Multiple SG's are not supported for ELS requests, "
 297                     "request_sg_cnt=%x reply_sg_cnt=%x.\n",
 298                     bsg_job->request_payload.sg_cnt,
 299                     bsg_job->reply_payload.sg_cnt);
 300                 rval = -EPERM;
 301                 goto done;
 302         }
 303
 304         /* ELS request for rport */
 305         if (bsg_request->msgcode == FC_BSG_RPT_ELS) {
 306                 /* make sure the rport is logged in,
 307                  * if not perform fabric login
 308                  */
 309                 if (qla2x00_fabric_login(vha, fcport, &nextlid)) {
 310                         ql_dbg(ql_dbg_user, vha, 0x7003,
 311                             "Failed to login port %06X for ELS passthru.\n",
 312                             fcport->d_id.b24);
 313                         rval = -EIO;
 314                         goto done;
 315                 }
 316         } else {
 317                 /* Allocate a dummy fcport structure, since functions
 318                  * preparing the IOCB and mailbox command retrieves port
 319                  * specific information from fcport structure. For Host based
 320                  * ELS commands there will be no fcport structure allocated
 321                  */
 322                 fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
 323                 if (!fcport) {
 324                         rval = -ENOMEM;
 325                         goto done;
 326                 }
 327
 328                 /* Initialize all required  fields of fcport */
 329                 fcport->vha = vha;
 330                 fcport->d_id.b.al_pa =
 331                         bsg_request->rqst_data.h_els.port_id[0];
 332                 fcport->d_id.b.area =
 333                         bsg_request->rqst_data.h_els.port_id[1];
 334                 fcport->d_id.b.domain =
 335                         bsg_request->rqst_data.h_els.port_id[2];
 336                 fcport->loop_id =
 337                         (fcport->d_id.b.al_pa == 0xFD) ?
 338                         NPH_FABRIC_CONTROLLER : NPH_F_PORT;
 339         }
 340
 341         req_sg_cnt =
 342                 dma_map_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
 343                 bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
 344         if (!req_sg_cnt) {
 345                 rval = -ENOMEM;
 346                 goto done_free_fcport;
 347         }
 348
 349         rsp_sg_cnt = dma_map_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
 350                 bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
 351         if (!rsp_sg_cnt) {
 352                 rval = -ENOMEM;
 353                 goto done_free_fcport;
 354         }
 355
 356         if ((req_sg_cnt !=  bsg_job->request_payload.sg_cnt) ||
 357                 (rsp_sg_cnt != bsg_job->reply_payload.sg_cnt)) {
 358                 ql_log(ql_log_warn, vha, 0x7008,
 359                     "dma mapping resulted in different sg counts, "
 360                     "request_sg_cnt: %x dma_request_sg_cnt:%x reply_sg_cnt:%x "
 361                     "dma_reply_sg_cnt:%x.\n", bsg_job->request_payload.sg_cnt,
 362                     req_sg_cnt, bsg_job->reply_payload.sg_cnt, rsp_sg_cnt);
 363                 rval = -EAGAIN;
 364                 goto done_unmap_sg;
 365         }
 366
 367         /* Alloc SRB structure */
 368         sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
 369         if (!sp) {
 370                 rval = -ENOMEM;
 371                 goto done_unmap_sg;
 372         }
 373
 374         sp->type =
 375                 (bsg_request->msgcode == FC_BSG_RPT_ELS ?
 376                  SRB_ELS_CMD_RPT : SRB_ELS_CMD_HST);
 377         sp->name =
 378                 (bsg_request->msgcode == FC_BSG_RPT_ELS ?
 379                  "bsg_els_rpt" : "bsg_els_hst");
 380         sp->u.bsg_job = bsg_job;
 381         sp->free = qla2x00_bsg_sp_free;
 382         sp->done = qla2x00_bsg_job_done;
 383
 384         ql_dbg(ql_dbg_user, vha, 0x700a,
 385             "bsg rqst type: %s els type: %x - loop-id=%x "
 386             "portid=%-2x%02x%02x.\n", type,
 387             bsg_request->rqst_data.h_els.command_code, fcport->loop_id,
 388             fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa);
 389
 390         rval = qla2x00_start_sp(sp);
 391         if (rval != QLA_SUCCESS) {
 392                 ql_log(ql_log_warn, vha, 0x700e,
 393                     "qla2x00_start_sp failed = %d\n", rval);
 394                 qla2x00_rel_sp(sp);
 395                 rval = -EIO;
 396                 goto done_unmap_sg;
 397         }
 398         return rval;
 399
 400 done_unmap_sg:
 401         dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
 402                 bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
 403         dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
 404                 bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
 405         goto done_free_fcport;
 406
 407 done_free_fcport:
 408         if (bsg_request->msgcode == FC_BSG_RPT_ELS)
 409                 kfree(fcport);
 410 done:
 411         return rval;
 412 }
 413
 414 static inline uint16_t
 415 qla24xx_calc_ct_iocbs(uint16_t dsds)
 416 {
 417         uint16_t iocbs;
 418
 419         iocbs = 1;
 420         if (dsds > 2) {
 421                 iocbs += (dsds - 2) / 5;
 422                 if ((dsds - 2) % 5)
 423                         iocbs++;
 424         }
 425         return iocbs;
 426 }
 427
 428 static int
 429 qla2x00_process_ct(struct bsg_job *bsg_job)
 430 {
 431         srb_t *sp;
 432         struct fc_bsg_request *bsg_request = bsg_job->request;
 433         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
 434         scsi_qla_host_t *vha = shost_priv(host);
 435         struct qla_hw_data *ha = vha->hw;
 436         int rval = (DRIVER_ERROR << 16);
 437         int req_sg_cnt, rsp_sg_cnt;
 438         uint16_t loop_id;
 439         struct fc_port *fcport;
 440         char  *type = "FC_BSG_HST_CT";
 441
 442         req_sg_cnt =
 443                 dma_map_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
 444                         bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
 445         if (!req_sg_cnt) {
 446                 ql_log(ql_log_warn, vha, 0x700f,
 447                     "dma_map_sg return %d for request\n", req_sg_cnt);
 448                 rval = -ENOMEM;
 449                 goto done;
 450         }
 451
 452         rsp_sg_cnt = dma_map_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
 453                 bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
 454         if (!rsp_sg_cnt) {
 455                 ql_log(ql_log_warn, vha, 0x7010,
 456                     "dma_map_sg return %d for reply\n", rsp_sg_cnt);
 457                 rval = -ENOMEM;
 458                 goto done;
 459         }
 460
 461         if ((req_sg_cnt !=  bsg_job->request_payload.sg_cnt) ||
 462             (rsp_sg_cnt != bsg_job->reply_payload.sg_cnt)) {
 463                 ql_log(ql_log_warn, vha, 0x7011,
 464                     "request_sg_cnt: %x dma_request_sg_cnt: %x reply_sg_cnt:%x "
 465                     "dma_reply_sg_cnt: %x\n", bsg_job->request_payload.sg_cnt,
 466                     req_sg_cnt, bsg_job->reply_payload.sg_cnt, rsp_sg_cnt);
 467                 rval = -EAGAIN;
 468                 goto done_unmap_sg;
 469         }
 470
 471         if (!vha->flags.online) {
 472                 ql_log(ql_log_warn, vha, 0x7012,
 473                     "Host is not online.\n");
 474                 rval = -EIO;
 475                 goto done_unmap_sg;
 476         }
 477
 478         loop_id =
 479                 (bsg_request->rqst_data.h_ct.preamble_word1 & 0xFF000000)
 480                         >> 24;
 481         switch (loop_id) {
 482         case 0xFC:
 483                 loop_id = cpu_to_le16(NPH_SNS);
 484                 break;
 485         case 0xFA:
 486                 loop_id = vha->mgmt_svr_loop_id;
 487                 break;
 488         default:
 489                 ql_dbg(ql_dbg_user, vha, 0x7013,
 490                     "Unknown loop id: %x.\n", loop_id);
 491                 rval = -EINVAL;
 492                 goto done_unmap_sg;
 493         }
 494
 495         /* Allocate a dummy fcport structure, since functions preparing the
 496          * IOCB and mailbox command retrieves port specific information
 497          * from fcport structure. For Host based ELS commands there will be
 498          * no fcport structure allocated
 499          */
 500         fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
 501         if (!fcport) {
 502                 ql_log(ql_log_warn, vha, 0x7014,
 503                     "Failed to allocate fcport.\n");
 504                 rval = -ENOMEM;
 505                 goto done_unmap_sg;
 506         }
 507
 508         /* Initialize all required  fields of fcport */
 509         fcport->vha = vha;
 510         fcport->d_id.b.al_pa = bsg_request->rqst_data.h_ct.port_id[0];
 511         fcport->d_id.b.area = bsg_request->rqst_data.h_ct.port_id[1];
 512         fcport->d_id.b.domain = bsg_request->rqst_data.h_ct.port_id[2];
 513         fcport->loop_id = loop_id;
 514
 515         /* Alloc SRB structure */
 516         sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
 517         if (!sp) {
 518                 ql_log(ql_log_warn, vha, 0x7015,
 519                     "qla2x00_get_sp failed.\n");
 520                 rval = -ENOMEM;
 521                 goto done_free_fcport;
 522         }
 523
 524         sp->type = SRB_CT_CMD;
 525         sp->name = "bsg_ct";
 526         sp->iocbs = qla24xx_calc_ct_iocbs(req_sg_cnt + rsp_sg_cnt);
 527         sp->u.bsg_job = bsg_job;
 528         sp->free = qla2x00_bsg_sp_free;
 529         sp->done = qla2x00_bsg_job_done;
 530
 531         ql_dbg(ql_dbg_user, vha, 0x7016,
 532             "bsg rqst type: %s else type: %x - "
 533             "loop-id=%x portid=%02x%02x%02x.\n", type,
 534             (bsg_request->rqst_data.h_ct.preamble_word2 >> 16),
 535             fcport->loop_id, fcport->d_id.b.domain, fcport->d_id.b.area,
 536             fcport->d_id.b.al_pa);
 537
 538         rval = qla2x00_start_sp(sp);
 539         if (rval != QLA_SUCCESS) {
 540                 ql_log(ql_log_warn, vha, 0x7017,
 541                     "qla2x00_start_sp failed=%d.\n", rval);
 542                 qla2x00_rel_sp(sp);
 543                 rval = -EIO;
 544                 goto done_free_fcport;
 545         }
 546         return rval;
 547
 548 done_free_fcport:
 549         kfree(fcport);
 550 done_unmap_sg:
 551         dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
 552                 bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
 553         dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
 554                 bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
 555 done:
 556         return rval;
 557 }
 558
 559 /* Disable loopback mode */
 560 static inline int
 561 qla81xx_reset_loopback_mode(scsi_qla_host_t *vha, uint16_t *config,
 562                             int wait, int wait2)
 563 {
 564         int ret = 0;
 565         int rval = 0;
 566         uint16_t new_config[4];
 567         struct qla_hw_data *ha = vha->hw;
 568
 569         if (!IS_QLA81XX(ha) && !IS_QLA8031(ha) && !IS_QLA8044(ha))
 570                 goto done_reset_internal;
 571
 572         memset(new_config, 0 , sizeof(new_config));
 573         if ((config[0] & INTERNAL_LOOPBACK_MASK) >> 1 ==
 574             ENABLE_INTERNAL_LOOPBACK ||
 575             (config[0] & INTERNAL_LOOPBACK_MASK) >> 1 ==
 576             ENABLE_EXTERNAL_LOOPBACK) {
 577                 new_config[0] = config[0] & ~INTERNAL_LOOPBACK_MASK;
 578                 ql_dbg(ql_dbg_user, vha, 0x70bf, "new_config[0]=%02x\n",
 579                     (new_config[0] & INTERNAL_LOOPBACK_MASK));
 580                 memcpy(&new_config[1], &config[1], sizeof(uint16_t) * 3) ;
 581
 582                 ha->notify_dcbx_comp = wait;
 583                 ha->notify_lb_portup_comp = wait2;
 584
 585                 ret = qla81xx_set_port_config(vha, new_config);
 586                 if (ret != QLA_SUCCESS) {
 587                         ql_log(ql_log_warn, vha, 0x7025,
 588                             "Set port config failed.\n");
 589                         ha->notify_dcbx_comp = 0;
 590                         ha->notify_lb_portup_comp = 0;
 591                         rval = -EINVAL;
 592                         goto done_reset_internal;
 593                 }
 594
 595                 /* Wait for DCBX complete event */
 596                 if (wait && !wait_for_completion_timeout(&ha->dcbx_comp,
 597                         (DCBX_COMP_TIMEOUT * HZ))) {
 598                         ql_dbg(ql_dbg_user, vha, 0x7026,
 599                             "DCBX completion not received.\n");
 600                         ha->notify_dcbx_comp = 0;
 601                         ha->notify_lb_portup_comp = 0;
 602                         rval = -EINVAL;
 603                         goto done_reset_internal;
 604                 } else
 605                         ql_dbg(ql_dbg_user, vha, 0x7027,
 606                             "DCBX completion received.\n");
 607
 608                 if (wait2 &&
 609                     !wait_for_completion_timeout(&ha->lb_portup_comp,
 610                     (LB_PORTUP_COMP_TIMEOUT * HZ))) {
 611                         ql_dbg(ql_dbg_user, vha, 0x70c5,
 612                             "Port up completion not received.\n");
 613                         ha->notify_lb_portup_comp = 0;
 614                         rval = -EINVAL;
 615                         goto done_reset_internal;
 616                 } else
 617                         ql_dbg(ql_dbg_user, vha, 0x70c6,
 618                             "Port up completion received.\n");
 619
 620                 ha->notify_dcbx_comp = 0;
 621                 ha->notify_lb_portup_comp = 0;
 622         }
 623 done_reset_internal:
 624         return rval;
 625 }
 626
 627 /*
 628  * Set the port configuration to enable the internal or external loopback
 629  * depending on the loopback mode.
 630  */
 631 static inline int
 632 qla81xx_set_loopback_mode(scsi_qla_host_t *vha, uint16_t *config,
 633         uint16_t *new_config, uint16_t mode)
 634 {
 635         int ret = 0;
 636         int rval = 0;
 637         unsigned long rem_tmo = 0, current_tmo = 0;
 638         struct qla_hw_data *ha = vha->hw;
 639
 640         if (!IS_QLA81XX(ha) && !IS_QLA8031(ha) && !IS_QLA8044(ha))
 641                 goto done_set_internal;
 642
 643         if (mode == INTERNAL_LOOPBACK)
 644                 new_config[0] = config[0] | (ENABLE_INTERNAL_LOOPBACK << 1);
 645         else if (mode == EXTERNAL_LOOPBACK)
 646                 new_config[0] = config[0] | (ENABLE_EXTERNAL_LOOPBACK << 1);
 647         ql_dbg(ql_dbg_user, vha, 0x70be,
 648              "new_config[0]=%02x\n", (new_config[0] & INTERNAL_LOOPBACK_MASK));
 649
 650         memcpy(&new_config[1], &config[1], sizeof(uint16_t) * 3);
 651
 652         ha->notify_dcbx_comp = 1;
 653         ret = qla81xx_set_port_config(vha, new_config);
 654         if (ret != QLA_SUCCESS) {
 655                 ql_log(ql_log_warn, vha, 0x7021,
 656                     "set port config failed.\n");
 657                 ha->notify_dcbx_comp = 0;
 658                 rval = -EINVAL;
 659                 goto done_set_internal;
 660         }
 661
 662         /* Wait for DCBX complete event */
 663         current_tmo = DCBX_COMP_TIMEOUT * HZ;
 664         while (1) {
 665                 rem_tmo = wait_for_completion_timeout(&ha->dcbx_comp,
 666                     current_tmo);
 667                 if (!ha->idc_extend_tmo || rem_tmo) {
 668                         ha->idc_extend_tmo = 0;
 669                         break;
 670                 }
 671                 current_tmo = ha->idc_extend_tmo * HZ;
 672                 ha->idc_extend_tmo = 0;
 673         }
 674
 675         if (!rem_tmo) {
 676                 ql_dbg(ql_dbg_user, vha, 0x7022,
 677                     "DCBX completion not received.\n");
 678                 ret = qla81xx_reset_loopback_mode(vha, new_config, 0, 0);
 679                 /*
 680                  * If the reset of the loopback mode doesn't work take a FCoE
 681                  * dump and reset the chip.
 682                  */
 683                 if (ret) {
 684                         ha->isp_ops->fw_dump(vha, 0);
 685                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 686                 }
 687                 rval = -EINVAL;
 688         } else {
 689                 if (ha->flags.idc_compl_status) {
 690                         ql_dbg(ql_dbg_user, vha, 0x70c3,
 691                             "Bad status in IDC Completion AEN\n");
 692                         rval = -EINVAL;
 693                         ha->flags.idc_compl_status = 0;
 694                 } else
 695                         ql_dbg(ql_dbg_user, vha, 0x7023,
 696                             "DCBX completion received.\n");
 697         }
 698
 699         ha->notify_dcbx_comp = 0;
 700         ha->idc_extend_tmo = 0;
 701
 702 done_set_internal:
 703         return rval;
 704 }
 705
 706 static int
 707 qla2x00_process_loopback(struct bsg_job *bsg_job)
 708 {
 709         struct fc_bsg_request *bsg_request = bsg_job->request;
 710         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
 711         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
 712         scsi_qla_host_t *vha = shost_priv(host);
 713         struct qla_hw_data *ha = vha->hw;
 714         int rval;
 715         uint8_t command_sent;
 716         char *type;
 717         struct msg_echo_lb elreq;
 718         uint16_t response[MAILBOX_REGISTER_COUNT];
 719         uint16_t config[4], new_config[4];
 720         uint8_t *fw_sts_ptr;
 721         uint8_t *req_data = NULL;
 722         dma_addr_t req_data_dma;
 723         uint32_t req_data_len;
 724         uint8_t *rsp_data = NULL;
 725         dma_addr_t rsp_data_dma;
 726         uint32_t rsp_data_len;
 727
 728         if (!vha->flags.online) {
 729                 ql_log(ql_log_warn, vha, 0x7019, "Host is not online.\n");
 730                 return -EIO;
 731         }
 732
 733         memset(&elreq, 0, sizeof(elreq));
 734
 735         elreq.req_sg_cnt = dma_map_sg(&ha->pdev->dev,
 736                 bsg_job->request_payload.sg_list, bsg_job->request_payload.sg_cnt,
 737                 DMA_TO_DEVICE);
 738
 739         if (!elreq.req_sg_cnt) {
 740                 ql_log(ql_log_warn, vha, 0x701a,
 741                     "dma_map_sg returned %d for request.\n", elreq.req_sg_cnt);
 742                 return -ENOMEM;
 743         }
 744
 745         elreq.rsp_sg_cnt = dma_map_sg(&ha->pdev->dev,
 746                 bsg_job->reply_payload.sg_list, bsg_job->reply_payload.sg_cnt,
 747                 DMA_FROM_DEVICE);
 748
 749         if (!elreq.rsp_sg_cnt) {
 750                 ql_log(ql_log_warn, vha, 0x701b,
 751                     "dma_map_sg returned %d for reply.\n", elreq.rsp_sg_cnt);
 752                 rval = -ENOMEM;
 753                 goto done_unmap_req_sg;
 754         }
 755
 756         if ((elreq.req_sg_cnt !=  bsg_job->request_payload.sg_cnt) ||
 757                 (elreq.rsp_sg_cnt != bsg_job->reply_payload.sg_cnt)) {
 758                 ql_log(ql_log_warn, vha, 0x701c,
 759                     "dma mapping resulted in different sg counts, "
 760                     "request_sg_cnt: %x dma_request_sg_cnt: %x "
 761                     "reply_sg_cnt: %x dma_reply_sg_cnt: %x.\n",
 762                     bsg_job->request_payload.sg_cnt, elreq.req_sg_cnt,
 763                     bsg_job->reply_payload.sg_cnt, elreq.rsp_sg_cnt);
 764                 rval = -EAGAIN;
 765                 goto done_unmap_sg;
 766         }
 767         req_data_len = rsp_data_len = bsg_job->request_payload.payload_len;
 768         req_data = dma_alloc_coherent(&ha->pdev->dev, req_data_len,
 769                 &req_data_dma, GFP_KERNEL);
 770         if (!req_data) {
 771                 ql_log(ql_log_warn, vha, 0x701d,
 772                     "dma alloc failed for req_data.\n");
 773                 rval = -ENOMEM;
 774                 goto done_unmap_sg;
 775         }
 776
 777         rsp_data = dma_alloc_coherent(&ha->pdev->dev, rsp_data_len,
 778                 &rsp_data_dma, GFP_KERNEL);
 779         if (!rsp_data) {
 780                 ql_log(ql_log_warn, vha, 0x7004,
 781                     "dma alloc failed for rsp_data.\n");
 782                 rval = -ENOMEM;
 783                 goto done_free_dma_req;
 784         }
 785
 786         /* Copy the request buffer in req_data now */
 787         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
 788                 bsg_job->request_payload.sg_cnt, req_data, req_data_len);
 789
 790         elreq.send_dma = req_data_dma;
 791         elreq.rcv_dma = rsp_data_dma;
 792         elreq.transfer_size = req_data_len;
 793
 794         elreq.options = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
 795         elreq.iteration_count =
 796             bsg_request->rqst_data.h_vendor.vendor_cmd[2];
 797
 798         if (atomic_read(&vha->loop_state) == LOOP_READY &&
 799             (ha->current_topology == ISP_CFG_F ||
 800             (le32_to_cpu(*(uint32_t *)req_data) == ELS_OPCODE_BYTE &&
 801              req_data_len == MAX_ELS_FRAME_PAYLOAD)) &&
 802             elreq.options == EXTERNAL_LOOPBACK) {
 803                 type = "FC_BSG_HST_VENDOR_ECHO_DIAG";
 804                 ql_dbg(ql_dbg_user, vha, 0x701e,
 805                     "BSG request type: %s.\n", type);
 806                 command_sent = INT_DEF_LB_ECHO_CMD;
 807                 rval = qla2x00_echo_test(vha, &elreq, response);
 808         } else {
 809                 if (IS_QLA81XX(ha) || IS_QLA8031(ha) || IS_QLA8044(ha)) {
 810                         memset(config, 0, sizeof(config));
 811                         memset(new_config, 0, sizeof(new_config));
 812
 813                         if (qla81xx_get_port_config(vha, config)) {
 814                                 ql_log(ql_log_warn, vha, 0x701f,
 815                                     "Get port config failed.\n");
 816                                 rval = -EPERM;
 817                                 goto done_free_dma_rsp;
 818                         }
 819
 820                         if ((config[0] & INTERNAL_LOOPBACK_MASK) != 0) {
 821                                 ql_dbg(ql_dbg_user, vha, 0x70c4,
 822                                     "Loopback operation already in "
 823                                     "progress.\n");
 824                                 rval = -EAGAIN;
 825                                 goto done_free_dma_rsp;
 826                         }
 827
 828                         ql_dbg(ql_dbg_user, vha, 0x70c0,
 829                             "elreq.options=%04x\n", elreq.options);
 830
 831                         if (elreq.options == EXTERNAL_LOOPBACK)
 832                                 if (IS_QLA8031(ha) || IS_QLA8044(ha))
 833                                         rval = qla81xx_set_loopback_mode(vha,
 834                                             config, new_config, elreq.options);
 835                                 else
 836                                         rval = qla81xx_reset_loopback_mode(vha,
 837                                             config, 1, 0);
 838                         else
 839                                 rval = qla81xx_set_loopback_mode(vha, config,
 840                                     new_config, elreq.options);
 841
 842                         if (rval) {
 843                                 rval = -EPERM;
 844                                 goto done_free_dma_rsp;
 845                         }
 846
 847                         type = "FC_BSG_HST_VENDOR_LOOPBACK";
 848                         ql_dbg(ql_dbg_user, vha, 0x7028,
 849                             "BSG request type: %s.\n", type);
 850
 851                         command_sent = INT_DEF_LB_LOOPBACK_CMD;
 852                         rval = qla2x00_loopback_test(vha, &elreq, response);
 853
 854                         if (response[0] == MBS_COMMAND_ERROR &&
 855                                         response[1] == MBS_LB_RESET) {
 856                                 ql_log(ql_log_warn, vha, 0x7029,
 857                                     "MBX command error, Aborting ISP.\n");
 858                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 859                                 qla2xxx_wake_dpc(vha);
 860                                 qla2x00_wait_for_chip_reset(vha);
 861                                 /* Also reset the MPI */
 862                                 if (IS_QLA81XX(ha)) {
 863                                         if (qla81xx_restart_mpi_firmware(vha) !=
 864                                             QLA_SUCCESS) {
 865                                                 ql_log(ql_log_warn, vha, 0x702a,
 866                                                     "MPI reset failed.\n");
 867                                         }
 868                                 }
 869
 870                                 rval = -EIO;
 871                                 goto done_free_dma_rsp;
 872                         }
 873
 874                         if (new_config[0]) {
 875                                 int ret;
 876
 877                                 /* Revert back to original port config
 878                                  * Also clear internal loopback
 879                                  */
 880                                 ret = qla81xx_reset_loopback_mode(vha,
 881                                     new_config, 0, 1);
 882                                 if (ret) {
 883                                         /*
 884                                          * If the reset of the loopback mode
 885                                          * doesn't work take FCoE dump and then
 886                                          * reset the chip.
 887                                          */
 888                                         ha->isp_ops->fw_dump(vha, 0);
 889                                         set_bit(ISP_ABORT_NEEDED,
 890                                             &vha->dpc_flags);
 891                                 }
 892
 893                         }
 894
 895                 } else {
 896                         type = "FC_BSG_HST_VENDOR_LOOPBACK";
 897                         ql_dbg(ql_dbg_user, vha, 0x702b,
 898                             "BSG request type: %s.\n", type);
 899                         command_sent = INT_DEF_LB_LOOPBACK_CMD;
 900                         rval = qla2x00_loopback_test(vha, &elreq, response);
 901                 }
 902         }
 903
 904         if (rval) {
 905                 ql_log(ql_log_warn, vha, 0x702c,
 906                     "Vendor request %s failed.\n", type);
 907
 908                 rval = 0;
 909                 bsg_reply->result = (DID_ERROR << 16);
 910                 bsg_reply->reply_payload_rcv_len = 0;
 911         } else {
 912                 ql_dbg(ql_dbg_user, vha, 0x702d,
 913                     "Vendor request %s completed.\n", type);
 914                 bsg_reply->result = (DID_OK << 16);
 915                 sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
 916                         bsg_job->reply_payload.sg_cnt, rsp_data,
 917                         rsp_data_len);
 918         }
 919
 920         bsg_job->reply_len = sizeof(struct fc_bsg_reply) +
 921             sizeof(response) + sizeof(uint8_t);
 922         fw_sts_ptr = bsg_job->reply + sizeof(struct fc_bsg_reply);
 923         memcpy(bsg_job->reply + sizeof(struct fc_bsg_reply), response,
 924                         sizeof(response));
 925         fw_sts_ptr += sizeof(response);
 926         *fw_sts_ptr = command_sent;
 927
 928 done_free_dma_rsp:
 929         dma_free_coherent(&ha->pdev->dev, rsp_data_len,
 930                 rsp_data, rsp_data_dma);
 931 done_free_dma_req:
 932         dma_free_coherent(&ha->pdev->dev, req_data_len,
 933                 req_data, req_data_dma);
 934 done_unmap_sg:
 935         dma_unmap_sg(&ha->pdev->dev,
 936             bsg_job->reply_payload.sg_list,
 937             bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
 938 done_unmap_req_sg:
 939         dma_unmap_sg(&ha->pdev->dev,
 940             bsg_job->request_payload.sg_list,
 941             bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
 942         if (!rval)
 943                 bsg_job_done(bsg_job, bsg_reply->result,
 944                                bsg_reply->reply_payload_rcv_len);
 945         return rval;
 946 }
 947
 948 static int
 949 qla84xx_reset(struct bsg_job *bsg_job)
 950 {
 951         struct fc_bsg_request *bsg_request = bsg_job->request;
 952         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
 953         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
 954         scsi_qla_host_t *vha = shost_priv(host);
 955         struct qla_hw_data *ha = vha->hw;
 956         int rval = 0;
 957         uint32_t flag;
 958
 959         if (!IS_QLA84XX(ha)) {
 960                 ql_dbg(ql_dbg_user, vha, 0x702f, "Not 84xx, exiting.\n");
 961                 return -EINVAL;
 962         }
 963
 964         flag = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
 965
 966         rval = qla84xx_reset_chip(vha, flag == A84_ISSUE_RESET_DIAG_FW);
 967
 968         if (rval) {
 969                 ql_log(ql_log_warn, vha, 0x7030,
 970                     "Vendor request 84xx reset failed.\n");
 971                 rval = (DID_ERROR << 16);
 972
 973         } else {
 974                 ql_dbg(ql_dbg_user, vha, 0x7031,
 975                     "Vendor request 84xx reset completed.\n");
 976                 bsg_reply->result = DID_OK;
 977                 bsg_job_done(bsg_job, bsg_reply->result,
 978                                bsg_reply->reply_payload_rcv_len);
 979         }
 980
 981         return rval;
 982 }
 983
 984 static int
 985 qla84xx_updatefw(struct bsg_job *bsg_job)
 986 {
 987         struct fc_bsg_request *bsg_request = bsg_job->request;
 988         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
 989         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
 990         scsi_qla_host_t *vha = shost_priv(host);
 991         struct qla_hw_data *ha = vha->hw;
 992         struct verify_chip_entry_84xx *mn = NULL;
 993         dma_addr_t mn_dma, fw_dma;
 994         void *fw_buf = NULL;
 995         int rval = 0;
 996         uint32_t sg_cnt;
 997         uint32_t data_len;
 998         uint16_t options;
 999         uint32_t flag;
1000         uint32_t fw_ver;
1001
1002         if (!IS_QLA84XX(ha)) {
1003                 ql_dbg(ql_dbg_user, vha, 0x7032,
1004                     "Not 84xx, exiting.\n");
1005                 return -EINVAL;
1006         }
1007
1008         sg_cnt = dma_map_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
1009                 bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1010         if (!sg_cnt) {
1011                 ql_log(ql_log_warn, vha, 0x7033,
1012                     "dma_map_sg returned %d for request.\n", sg_cnt);
1013                 return -ENOMEM;
1014         }
1015
1016         if (sg_cnt != bsg_job->request_payload.sg_cnt) {
1017                 ql_log(ql_log_warn, vha, 0x7034,
1018                     "DMA mapping resulted in different sg counts, "
1019                     "request_sg_cnt: %x dma_request_sg_cnt: %x.\n",
1020                     bsg_job->request_payload.sg_cnt, sg_cnt);
1021                 rval = -EAGAIN;
1022                 goto done_unmap_sg;
1023         }
1024
1025         data_len = bsg_job->request_payload.payload_len;
1026         fw_buf = dma_alloc_coherent(&ha->pdev->dev, data_len,
1027                 &fw_dma, GFP_KERNEL);
1028         if (!fw_buf) {
1029                 ql_log(ql_log_warn, vha, 0x7035,
1030                     "DMA alloc failed for fw_buf.\n");
1031                 rval = -ENOMEM;
1032                 goto done_unmap_sg;
1033         }
1034
1035         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1036                 bsg_job->request_payload.sg_cnt, fw_buf, data_len);
1037
1038         mn = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, &mn_dma);
1039         if (!mn) {
1040                 ql_log(ql_log_warn, vha, 0x7036,
1041                     "DMA alloc failed for fw buffer.\n");
1042                 rval = -ENOMEM;
1043                 goto done_free_fw_buf;
1044         }
1045
1046         flag = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
1047         fw_ver = le32_to_cpu(*((uint32_t *)((uint32_t *)fw_buf + 2)));
1048
1049         mn->entry_type = VERIFY_CHIP_IOCB_TYPE;
1050         mn->entry_count = 1;
1051
1052         options = VCO_FORCE_UPDATE | VCO_END_OF_DATA;
1053         if (flag == A84_ISSUE_UPDATE_DIAGFW_CMD)
1054                 options |= VCO_DIAG_FW;
1055
1056         mn->options = cpu_to_le16(options);
1057         mn->fw_ver =  cpu_to_le32(fw_ver);
1058         mn->fw_size =  cpu_to_le32(data_len);
1059         mn->fw_seq_size =  cpu_to_le32(data_len);
1060         mn->dseg_address[0] = cpu_to_le32(LSD(fw_dma));
1061         mn->dseg_address[1] = cpu_to_le32(MSD(fw_dma));
1062         mn->dseg_length = cpu_to_le32(data_len);
1063         mn->data_seg_cnt = cpu_to_le16(1);
1064
1065         rval = qla2x00_issue_iocb_timeout(vha, mn, mn_dma, 0, 120);
1066
1067         if (rval) {
1068                 ql_log(ql_log_warn, vha, 0x7037,
1069                     "Vendor request 84xx updatefw failed.\n");
1070
1071                 rval = (DID_ERROR << 16);
1072         } else {
1073                 ql_dbg(ql_dbg_user, vha, 0x7038,
1074                     "Vendor request 84xx updatefw completed.\n");
1075
1076                 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1077                 bsg_reply->result = DID_OK;
1078         }
1079
1080         dma_pool_free(ha->s_dma_pool, mn, mn_dma);
1081
1082 done_free_fw_buf:
1083         dma_free_coherent(&ha->pdev->dev, data_len, fw_buf, fw_dma);
1084
1085 done_unmap_sg:
1086         dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
1087                 bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1088
1089         if (!rval)
1090                 bsg_job_done(bsg_job, bsg_reply->result,
1091                                bsg_reply->reply_payload_rcv_len);
1092         return rval;
1093 }
1094
1095 static int
1096 qla84xx_mgmt_cmd(struct bsg_job *bsg_job)
1097 {
1098         struct fc_bsg_request *bsg_request = bsg_job->request;
1099         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1100         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1101         scsi_qla_host_t *vha = shost_priv(host);
1102         struct qla_hw_data *ha = vha->hw;
1103         struct access_chip_84xx *mn = NULL;
1104         dma_addr_t mn_dma, mgmt_dma;
1105         void *mgmt_b = NULL;
1106         int rval = 0;
1107         struct qla_bsg_a84_mgmt *ql84_mgmt;
1108         uint32_t sg_cnt;
1109         uint32_t data_len = 0;
1110         uint32_t dma_direction = DMA_NONE;
1111
1112         if (!IS_QLA84XX(ha)) {
1113                 ql_log(ql_log_warn, vha, 0x703a,
1114                     "Not 84xx, exiting.\n");
1115                 return -EINVAL;
1116         }
1117
1118         mn = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, &mn_dma);
1119         if (!mn) {
1120                 ql_log(ql_log_warn, vha, 0x703c,
1121                     "DMA alloc failed for fw buffer.\n");
1122                 return -ENOMEM;
1123         }
1124
1125         mn->entry_type = ACCESS_CHIP_IOCB_TYPE;
1126         mn->entry_count = 1;
1127         ql84_mgmt = (void *)bsg_request + sizeof(struct fc_bsg_request);
1128         switch (ql84_mgmt->mgmt.cmd) {
1129         case QLA84_MGMT_READ_MEM:
1130         case QLA84_MGMT_GET_INFO:
1131                 sg_cnt = dma_map_sg(&ha->pdev->dev,
1132                         bsg_job->reply_payload.sg_list,
1133                         bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1134                 if (!sg_cnt) {
1135                         ql_log(ql_log_warn, vha, 0x703d,
1136                             "dma_map_sg returned %d for reply.\n", sg_cnt);
1137                         rval = -ENOMEM;
1138                         goto exit_mgmt;
1139                 }
1140
1141                 dma_direction = DMA_FROM_DEVICE;
1142
1143                 if (sg_cnt != bsg_job->reply_payload.sg_cnt) {
1144                         ql_log(ql_log_warn, vha, 0x703e,
1145                             "DMA mapping resulted in different sg counts, "
1146                             "reply_sg_cnt: %x dma_reply_sg_cnt: %x.\n",
1147                             bsg_job->reply_payload.sg_cnt, sg_cnt);
1148                         rval = -EAGAIN;
1149                         goto done_unmap_sg;
1150                 }
1151
1152                 data_len = bsg_job->reply_payload.payload_len;
1153
1154                 mgmt_b = dma_alloc_coherent(&ha->pdev->dev, data_len,
1155                     &mgmt_dma, GFP_KERNEL);
1156                 if (!mgmt_b) {
1157                         ql_log(ql_log_warn, vha, 0x703f,
1158                             "DMA alloc failed for mgmt_b.\n");
1159                         rval = -ENOMEM;
1160                         goto done_unmap_sg;
1161                 }
1162
1163                 if (ql84_mgmt->mgmt.cmd == QLA84_MGMT_READ_MEM) {
1164                         mn->options = cpu_to_le16(ACO_DUMP_MEMORY);
1165                         mn->parameter1 =
1166                                 cpu_to_le32(
1167                                 ql84_mgmt->mgmt.mgmtp.u.mem.start_addr);
1168
1169                 } else if (ql84_mgmt->mgmt.cmd == QLA84_MGMT_GET_INFO) {
1170                         mn->options = cpu_to_le16(ACO_REQUEST_INFO);
1171                         mn->parameter1 =
1172                                 cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.info.type);
1173
1174                         mn->parameter2 =
1175                                 cpu_to_le32(
1176                                 ql84_mgmt->mgmt.mgmtp.u.info.context);
1177                 }
1178                 break;
1179
1180         case QLA84_MGMT_WRITE_MEM:
1181                 sg_cnt = dma_map_sg(&ha->pdev->dev,
1182                         bsg_job->request_payload.sg_list,
1183                         bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1184
1185                 if (!sg_cnt) {
1186                         ql_log(ql_log_warn, vha, 0x7040,
1187                             "dma_map_sg returned %d.\n", sg_cnt);
1188                         rval = -ENOMEM;
1189                         goto exit_mgmt;
1190                 }
1191
1192                 dma_direction = DMA_TO_DEVICE;
1193
1194                 if (sg_cnt != bsg_job->request_payload.sg_cnt) {
1195                         ql_log(ql_log_warn, vha, 0x7041,
1196                             "DMA mapping resulted in different sg counts, "
1197                             "request_sg_cnt: %x dma_request_sg_cnt: %x.\n",
1198                             bsg_job->request_payload.sg_cnt, sg_cnt);
1199                         rval = -EAGAIN;
1200                         goto done_unmap_sg;
1201                 }
1202
1203                 data_len = bsg_job->request_payload.payload_len;
1204                 mgmt_b = dma_alloc_coherent(&ha->pdev->dev, data_len,
1205                         &mgmt_dma, GFP_KERNEL);
1206                 if (!mgmt_b) {
1207                         ql_log(ql_log_warn, vha, 0x7042,
1208                             "DMA alloc failed for mgmt_b.\n");
1209                         rval = -ENOMEM;
1210                         goto done_unmap_sg;
1211                 }
1212
1213                 sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1214                         bsg_job->request_payload.sg_cnt, mgmt_b, data_len);
1215
1216                 mn->options = cpu_to_le16(ACO_LOAD_MEMORY);
1217                 mn->parameter1 =
1218                         cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.mem.start_addr);
1219                 break;
1220
1221         case QLA84_MGMT_CHNG_CONFIG:
1222                 mn->options = cpu_to_le16(ACO_CHANGE_CONFIG_PARAM);
1223                 mn->parameter1 =
1224                         cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.config.id);
1225
1226                 mn->parameter2 =
1227                         cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.config.param0);
1228
1229                 mn->parameter3 =
1230                         cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.config.param1);
1231                 break;
1232
1233         default:
1234                 rval = -EIO;
1235                 goto exit_mgmt;
1236         }
1237
1238         if (ql84_mgmt->mgmt.cmd != QLA84_MGMT_CHNG_CONFIG) {
1239                 mn->total_byte_cnt = cpu_to_le32(ql84_mgmt->mgmt.len);
1240                 mn->dseg_count = cpu_to_le16(1);
1241                 mn->dseg_address[0] = cpu_to_le32(LSD(mgmt_dma));
1242                 mn->dseg_address[1] = cpu_to_le32(MSD(mgmt_dma));
1243                 mn->dseg_length = cpu_to_le32(ql84_mgmt->mgmt.len);
1244         }
1245
1246         rval = qla2x00_issue_iocb(vha, mn, mn_dma, 0);
1247
1248         if (rval) {
1249                 ql_log(ql_log_warn, vha, 0x7043,
1250                     "Vendor request 84xx mgmt failed.\n");
1251
1252                 rval = (DID_ERROR << 16);
1253
1254         } else {
1255                 ql_dbg(ql_dbg_user, vha, 0x7044,
1256                     "Vendor request 84xx mgmt completed.\n");
1257
1258                 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1259                 bsg_reply->result = DID_OK;
1260
1261                 if ((ql84_mgmt->mgmt.cmd == QLA84_MGMT_READ_MEM) ||
1262                         (ql84_mgmt->mgmt.cmd == QLA84_MGMT_GET_INFO)) {
1263                         bsg_reply->reply_payload_rcv_len =
1264                                 bsg_job->reply_payload.payload_len;
1265
1266                         sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
1267                                 bsg_job->reply_payload.sg_cnt, mgmt_b,
1268                                 data_len);
1269                 }
1270         }
1271
1272 done_unmap_sg:
1273         if (mgmt_b)
1274                 dma_free_coherent(&ha->pdev->dev, data_len, mgmt_b, mgmt_dma);
1275
1276         if (dma_direction == DMA_TO_DEVICE)
1277                 dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
1278                         bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1279         else if (dma_direction == DMA_FROM_DEVICE)
1280                 dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
1281                         bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1282
1283 exit_mgmt:
1284         dma_pool_free(ha->s_dma_pool, mn, mn_dma);
1285
1286         if (!rval)
1287                 bsg_job_done(bsg_job, bsg_reply->result,
1288                                bsg_reply->reply_payload_rcv_len);
1289         return rval;
1290 }
1291
1292 static int
1293 qla24xx_iidma(struct bsg_job *bsg_job)
1294 {
1295         struct fc_bsg_request *bsg_request = bsg_job->request;
1296         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1297         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1298         scsi_qla_host_t *vha = shost_priv(host);
1299         int rval = 0;
1300         struct qla_port_param *port_param = NULL;
1301         fc_port_t *fcport = NULL;
1302         int found = 0;
1303         uint16_t mb[MAILBOX_REGISTER_COUNT];
1304         uint8_t *rsp_ptr = NULL;
1305
1306         if (!IS_IIDMA_CAPABLE(vha->hw)) {
1307                 ql_log(ql_log_info, vha, 0x7046, "iiDMA not supported.\n");
1308                 return -EINVAL;
1309         }
1310
1311         port_param = (void *)bsg_request + sizeof(struct fc_bsg_request);
1312         if (port_param->fc_scsi_addr.dest_type != EXT_DEF_TYPE_WWPN) {
1313                 ql_log(ql_log_warn, vha, 0x7048,
1314                     "Invalid destination type.\n");
1315                 return -EINVAL;
1316         }
1317
1318         list_for_each_entry(fcport, &vha->vp_fcports, list) {
1319                 if (fcport->port_type != FCT_TARGET)
1320                         continue;
1321
1322                 if (memcmp(port_param->fc_scsi_addr.dest_addr.wwpn,
1323                         fcport->port_name, sizeof(fcport->port_name)))
1324                         continue;
1325
1326                 found = 1;
1327                 break;
1328         }
1329
1330         if (!found) {
1331                 ql_log(ql_log_warn, vha, 0x7049,
1332                     "Failed to find port.\n");
1333                 return -EINVAL;
1334         }
1335
1336         if (atomic_read(&fcport->state) != FCS_ONLINE) {
1337                 ql_log(ql_log_warn, vha, 0x704a,
1338                     "Port is not online.\n");
1339                 return -EINVAL;
1340         }
1341
1342         if (fcport->flags & FCF_LOGIN_NEEDED) {
1343                 ql_log(ql_log_warn, vha, 0x704b,
1344                     "Remote port not logged in flags = 0x%x.\n", fcport->flags);
1345                 return -EINVAL;
1346         }
1347
1348         if (port_param->mode)
1349                 rval = qla2x00_set_idma_speed(vha, fcport->loop_id,
1350                         port_param->speed, mb);
1351         else
1352                 rval = qla2x00_get_idma_speed(vha, fcport->loop_id,
1353                         &port_param->speed, mb);
1354
1355         if (rval) {
1356                 ql_log(ql_log_warn, vha, 0x704c,
1357                     "iIDMA cmd failed for %8phN -- "
1358                     "%04x %x %04x %04x.\n", fcport->port_name,
1359                     rval, fcport->fp_speed, mb[0], mb[1]);
1360                 rval = (DID_ERROR << 16);
1361         } else {
1362                 if (!port_param->mode) {
1363                         bsg_job->reply_len = sizeof(struct fc_bsg_reply) +
1364                                 sizeof(struct qla_port_param);
1365
1366                         rsp_ptr = ((uint8_t *)bsg_reply) +
1367                                 sizeof(struct fc_bsg_reply);
1368
1369                         memcpy(rsp_ptr, port_param,
1370                                 sizeof(struct qla_port_param));
1371                 }
1372
1373                 bsg_reply->result = DID_OK;
1374                 bsg_job_done(bsg_job, bsg_reply->result,
1375                                bsg_reply->reply_payload_rcv_len);
1376         }
1377
1378         return rval;
1379 }
1380
1381 static int
1382 qla2x00_optrom_setup(struct bsg_job *bsg_job, scsi_qla_host_t *vha,
1383         uint8_t is_update)
1384 {
1385         struct fc_bsg_request *bsg_request = bsg_job->request;
1386         uint32_t start = 0;
1387         int valid = 0;
1388         struct qla_hw_data *ha = vha->hw;
1389
1390         if (unlikely(pci_channel_offline(ha->pdev)))
1391                 return -EINVAL;
1392
1393         start = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
1394         if (start > ha->optrom_size) {
1395                 ql_log(ql_log_warn, vha, 0x7055,
1396                     "start %d > optrom_size %d.\n", start, ha->optrom_size);
1397                 return -EINVAL;
1398         }
1399
1400         if (ha->optrom_state != QLA_SWAITING) {
1401                 ql_log(ql_log_info, vha, 0x7056,
1402                     "optrom_state %d.\n", ha->optrom_state);
1403                 return -EBUSY;
1404         }
1405
1406         ha->optrom_region_start = start;
1407         ql_dbg(ql_dbg_user, vha, 0x7057, "is_update=%d.\n", is_update);
1408         if (is_update) {
1409                 if (ha->optrom_size == OPTROM_SIZE_2300 && start == 0)
1410                         valid = 1;
1411                 else if (start == (ha->flt_region_boot * 4) ||
1412                     start == (ha->flt_region_fw * 4))
1413                         valid = 1;
1414                 else if (IS_QLA24XX_TYPE(ha) || IS_QLA25XX(ha) ||
1415                     IS_CNA_CAPABLE(ha) || IS_QLA2031(ha) || IS_QLA27XX(ha))
1416                         valid = 1;
1417                 if (!valid) {
1418                         ql_log(ql_log_warn, vha, 0x7058,
1419                             "Invalid start region 0x%x/0x%x.\n", start,
1420                             bsg_job->request_payload.payload_len);
1421                         return -EINVAL;
1422                 }
1423
1424                 ha->optrom_region_size = start +
1425                     bsg_job->request_payload.payload_len > ha->optrom_size ?
1426                     ha->optrom_size - start :
1427                     bsg_job->request_payload.payload_len;
1428                 ha->optrom_state = QLA_SWRITING;
1429         } else {
1430                 ha->optrom_region_size = start +
1431                     bsg_job->reply_payload.payload_len > ha->optrom_size ?
1432                     ha->optrom_size - start :
1433                     bsg_job->reply_payload.payload_len;
1434                 ha->optrom_state = QLA_SREADING;
1435         }
1436
1437         ha->optrom_buffer = vzalloc(ha->optrom_region_size);
1438         if (!ha->optrom_buffer) {
1439                 ql_log(ql_log_warn, vha, 0x7059,
1440                     "Read: Unable to allocate memory for optrom retrieval "
1441                     "(%x)\n", ha->optrom_region_size);
1442
1443                 ha->optrom_state = QLA_SWAITING;
1444                 return -ENOMEM;
1445         }
1446
1447         return 0;
1448 }
1449
1450 static int
1451 qla2x00_read_optrom(struct bsg_job *bsg_job)
1452 {
1453         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1454         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1455         scsi_qla_host_t *vha = shost_priv(host);
1456         struct qla_hw_data *ha = vha->hw;
1457         int rval = 0;
1458
1459         if (ha->flags.nic_core_reset_hdlr_active)
1460                 return -EBUSY;
1461
1462         mutex_lock(&ha->optrom_mutex);
1463         rval = qla2x00_optrom_setup(bsg_job, vha, 0);
1464         if (rval) {
1465                 mutex_unlock(&ha->optrom_mutex);
1466                 return rval;
1467         }
1468
1469         ha->isp_ops->read_optrom(vha, ha->optrom_buffer,
1470             ha->optrom_region_start, ha->optrom_region_size);
1471
1472         sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
1473             bsg_job->reply_payload.sg_cnt, ha->optrom_buffer,
1474             ha->optrom_region_size);
1475
1476         bsg_reply->reply_payload_rcv_len = ha->optrom_region_size;
1477         bsg_reply->result = DID_OK;
1478         vfree(ha->optrom_buffer);
1479         ha->optrom_buffer = NULL;
1480         ha->optrom_state = QLA_SWAITING;
1481         mutex_unlock(&ha->optrom_mutex);
1482         bsg_job_done(bsg_job, bsg_reply->result,
1483                        bsg_reply->reply_payload_rcv_len);
1484         return rval;
1485 }
1486
1487 static int
1488 qla2x00_update_optrom(struct bsg_job *bsg_job)
1489 {
1490         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1491         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1492         scsi_qla_host_t *vha = shost_priv(host);
1493         struct qla_hw_data *ha = vha->hw;
1494         int rval = 0;
1495
1496         mutex_lock(&ha->optrom_mutex);
1497         rval = qla2x00_optrom_setup(bsg_job, vha, 1);
1498         if (rval) {
1499                 mutex_unlock(&ha->optrom_mutex);
1500                 return rval;
1501         }
1502
1503         /* Set the isp82xx_no_md_cap not to capture minidump */
1504         ha->flags.isp82xx_no_md_cap = 1;
1505
1506         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1507             bsg_job->request_payload.sg_cnt, ha->optrom_buffer,
1508             ha->optrom_region_size);
1509
1510         ha->isp_ops->write_optrom(vha, ha->optrom_buffer,
1511             ha->optrom_region_start, ha->optrom_region_size);
1512
1513         bsg_reply->result = DID_OK;
1514         vfree(ha->optrom_buffer);
1515         ha->optrom_buffer = NULL;
1516         ha->optrom_state = QLA_SWAITING;
1517         mutex_unlock(&ha->optrom_mutex);
1518         bsg_job_done(bsg_job, bsg_reply->result,
1519                        bsg_reply->reply_payload_rcv_len);
1520         return rval;
1521 }
1522
1523 static int
1524 qla2x00_update_fru_versions(struct bsg_job *bsg_job)
1525 {
1526         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1527         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1528         scsi_qla_host_t *vha = shost_priv(host);
1529         struct qla_hw_data *ha = vha->hw;
1530         int rval = 0;
1531         uint8_t bsg[DMA_POOL_SIZE];
1532         struct qla_image_version_list *list = (void *)bsg;
1533         struct qla_image_version *image;
1534         uint32_t count;
1535         dma_addr_t sfp_dma;
1536         void *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1537         if (!sfp) {
1538                 bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1539                     EXT_STATUS_NO_MEMORY;
1540                 goto done;
1541         }
1542
1543         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1544             bsg_job->request_payload.sg_cnt, list, sizeof(bsg));
1545
1546         image = list->version;
1547         count = list->count;
1548         while (count--) {
1549                 memcpy(sfp, &image->field_info, sizeof(image->field_info));
1550                 rval = qla2x00_write_sfp(vha, sfp_dma, sfp,
1551                     image->field_address.device, image->field_address.offset,
1552                     sizeof(image->field_info), image->field_address.option);
1553                 if (rval) {
1554                         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1555                             EXT_STATUS_MAILBOX;
1556                         goto dealloc;
1557                 }
1558                 image++;
1559         }
1560
1561         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1562
1563 dealloc:
1564         dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1565
1566 done:
1567         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1568         bsg_reply->result = DID_OK << 16;
1569         bsg_job_done(bsg_job, bsg_reply->result,
1570                        bsg_reply->reply_payload_rcv_len);
1571
1572         return 0;
1573 }
1574
1575 static int
1576 qla2x00_read_fru_status(struct bsg_job *bsg_job)
1577 {
1578         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1579         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1580         scsi_qla_host_t *vha = shost_priv(host);
1581         struct qla_hw_data *ha = vha->hw;
1582         int rval = 0;
1583         uint8_t bsg[DMA_POOL_SIZE];
1584         struct qla_status_reg *sr = (void *)bsg;
1585         dma_addr_t sfp_dma;
1586         uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1587         if (!sfp) {
1588                 bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1589                     EXT_STATUS_NO_MEMORY;
1590                 goto done;
1591         }
1592
1593         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1594             bsg_job->request_payload.sg_cnt, sr, sizeof(*sr));
1595
1596         rval = qla2x00_read_sfp(vha, sfp_dma, sfp,
1597             sr->field_address.device, sr->field_address.offset,
1598             sizeof(sr->status_reg), sr->field_address.option);
1599         sr->status_reg = *sfp;
1600
1601         if (rval) {
1602                 bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1603                     EXT_STATUS_MAILBOX;
1604                 goto dealloc;
1605         }
1606
1607         sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
1608             bsg_job->reply_payload.sg_cnt, sr, sizeof(*sr));
1609
1610         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1611
1612 dealloc:
1613         dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1614
1615 done:
1616         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1617         bsg_reply->reply_payload_rcv_len = sizeof(*sr);
1618         bsg_reply->result = DID_OK << 16;
1619         bsg_job_done(bsg_job, bsg_reply->result,
1620                        bsg_reply->reply_payload_rcv_len);
1621
1622         return 0;
1623 }
1624
1625 static int
1626 qla2x00_write_fru_status(struct bsg_job *bsg_job)
1627 {
1628         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1629         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1630         scsi_qla_host_t *vha = shost_priv(host);
1631         struct qla_hw_data *ha = vha->hw;
1632         int rval = 0;
1633         uint8_t bsg[DMA_POOL_SIZE];
1634         struct qla_status_reg *sr = (void *)bsg;
1635         dma_addr_t sfp_dma;
1636         uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1637         if (!sfp) {
1638                 bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1639                     EXT_STATUS_NO_MEMORY;
1640                 goto done;
1641         }
1642
1643         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1644             bsg_job->request_payload.sg_cnt, sr, sizeof(*sr));
1645
1646         *sfp = sr->status_reg;
1647         rval = qla2x00_write_sfp(vha, sfp_dma, sfp,
1648             sr->field_address.device, sr->field_address.offset,
1649             sizeof(sr->status_reg), sr->field_address.option);
1650
1651         if (rval) {
1652                 bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1653                     EXT_STATUS_MAILBOX;
1654                 goto dealloc;
1655         }
1656
1657         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1658
1659 dealloc:
1660         dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1661
1662 done:
1663         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1664         bsg_reply->result = DID_OK << 16;
1665         bsg_job_done(bsg_job, bsg_reply->result,
1666                        bsg_reply->reply_payload_rcv_len);
1667
1668         return 0;
1669 }
1670
1671 static int
1672 qla2x00_write_i2c(struct bsg_job *bsg_job)
1673 {
1674         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1675         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1676         scsi_qla_host_t *vha = shost_priv(host);
1677         struct qla_hw_data *ha = vha->hw;
1678         int rval = 0;
1679         uint8_t bsg[DMA_POOL_SIZE];
1680         struct qla_i2c_access *i2c = (void *)bsg;
1681         dma_addr_t sfp_dma;
1682         uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1683         if (!sfp) {
1684                 bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1685                     EXT_STATUS_NO_MEMORY;
1686                 goto done;
1687         }
1688
1689         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1690             bsg_job->request_payload.sg_cnt, i2c, sizeof(*i2c));
1691
1692         memcpy(sfp, i2c->buffer, i2c->length);
1693         rval = qla2x00_write_sfp(vha, sfp_dma, sfp,
1694             i2c->device, i2c->offset, i2c->length, i2c->option);
1695
1696         if (rval) {
1697                 bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1698                     EXT_STATUS_MAILBOX;
1699                 goto dealloc;
1700         }
1701
1702         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1703
1704 dealloc:
1705         dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1706
1707 done:
1708         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1709         bsg_reply->result = DID_OK << 16;
1710         bsg_job_done(bsg_job, bsg_reply->result,
1711                        bsg_reply->reply_payload_rcv_len);
1712
1713         return 0;
1714 }
1715
1716 static int
1717 qla2x00_read_i2c(struct bsg_job *bsg_job)
1718 {
1719         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1720         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1721         scsi_qla_host_t *vha = shost_priv(host);
1722         struct qla_hw_data *ha = vha->hw;
1723         int rval = 0;
1724         uint8_t bsg[DMA_POOL_SIZE];
1725         struct qla_i2c_access *i2c = (void *)bsg;
1726         dma_addr_t sfp_dma;
1727         uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1728         if (!sfp) {
1729                 bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1730                     EXT_STATUS_NO_MEMORY;
1731                 goto done;
1732         }
1733
1734         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1735             bsg_job->request_payload.sg_cnt, i2c, sizeof(*i2c));
1736
1737         rval = qla2x00_read_sfp(vha, sfp_dma, sfp,
1738                 i2c->device, i2c->offset, i2c->length, i2c->option);
1739
1740         if (rval) {
1741                 bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1742                     EXT_STATUS_MAILBOX;
1743                 goto dealloc;
1744         }
1745
1746         memcpy(i2c->buffer, sfp, i2c->length);
1747         sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
1748             bsg_job->reply_payload.sg_cnt, i2c, sizeof(*i2c));
1749
1750         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1751
1752 dealloc:
1753         dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1754
1755 done:
1756         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1757         bsg_reply->reply_payload_rcv_len = sizeof(*i2c);
1758         bsg_reply->result = DID_OK << 16;
1759         bsg_job_done(bsg_job, bsg_reply->result,
1760                        bsg_reply->reply_payload_rcv_len);
1761
1762         return 0;
1763 }
1764
1765 static int
1766 qla24xx_process_bidir_cmd(struct bsg_job *bsg_job)
1767 {
1768         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1769         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1770         scsi_qla_host_t *vha = shost_priv(host);
1771         struct qla_hw_data *ha = vha->hw;
1772         uint32_t rval = EXT_STATUS_OK;
1773         uint16_t req_sg_cnt = 0;
1774         uint16_t rsp_sg_cnt = 0;
1775         uint16_t nextlid = 0;
1776         uint32_t tot_dsds;
1777         srb_t *sp = NULL;
1778         uint32_t req_data_len = 0;
1779         uint32_t rsp_data_len = 0;
1780
1781         /* Check the type of the adapter */
1782         if (!IS_BIDI_CAPABLE(ha)) {
1783                 ql_log(ql_log_warn, vha, 0x70a0,
1784                         "This adapter is not supported\n");
1785                 rval = EXT_STATUS_NOT_SUPPORTED;
1786                 goto done;
1787         }
1788
1789         if (test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
1790                 test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) ||
1791                 test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
1792                 rval =  EXT_STATUS_BUSY;
1793                 goto done;
1794         }
1795
1796         /* Check if host is online */
1797         if (!vha->flags.online) {
1798                 ql_log(ql_log_warn, vha, 0x70a1,
1799                         "Host is not online\n");
1800                 rval = EXT_STATUS_DEVICE_OFFLINE;
1801                 goto done;
1802         }
1803
1804         /* Check if cable is plugged in or not */
1805         if (vha->device_flags & DFLG_NO_CABLE) {
1806                 ql_log(ql_log_warn, vha, 0x70a2,
1807                         "Cable is unplugged...\n");
1808                 rval = EXT_STATUS_INVALID_CFG;
1809                 goto done;
1810         }
1811
1812         /* Check if the switch is connected or not */
1813         if (ha->current_topology != ISP_CFG_F) {
1814                 ql_log(ql_log_warn, vha, 0x70a3,
1815                         "Host is not connected to the switch\n");
1816                 rval = EXT_STATUS_INVALID_CFG;
1817                 goto done;
1818         }
1819
1820         /* Check if operating mode is P2P */
1821         if (ha->operating_mode != P2P) {
1822                 ql_log(ql_log_warn, vha, 0x70a4,
1823                     "Host operating mode is not P2p\n");
1824                 rval = EXT_STATUS_INVALID_CFG;
1825                 goto done;
1826         }
1827
1828         mutex_lock(&ha->selflogin_lock);
1829         if (vha->self_login_loop_id == 0) {
1830                 /* Initialize all required  fields of fcport */
1831                 vha->bidir_fcport.vha = vha;
1832                 vha->bidir_fcport.d_id.b.al_pa = vha->d_id.b.al_pa;
1833                 vha->bidir_fcport.d_id.b.area = vha->d_id.b.area;
1834                 vha->bidir_fcport.d_id.b.domain = vha->d_id.b.domain;
1835                 vha->bidir_fcport.loop_id = vha->loop_id;
1836
1837                 if (qla2x00_fabric_login(vha, &(vha->bidir_fcport), &nextlid)) {
1838                         ql_log(ql_log_warn, vha, 0x70a7,
1839                             "Failed to login port %06X for bidirectional IOCB\n",
1840                             vha->bidir_fcport.d_id.b24);
1841                         mutex_unlock(&ha->selflogin_lock);
1842                         rval = EXT_STATUS_MAILBOX;
1843                         goto done;
1844                 }
1845                 vha->self_login_loop_id = nextlid - 1;
1846
1847         }
1848         /* Assign the self login loop id to fcport */
1849         mutex_unlock(&ha->selflogin_lock);
1850
1851         vha->bidir_fcport.loop_id = vha->self_login_loop_id;
1852
1853         req_sg_cnt = dma_map_sg(&ha->pdev->dev,
1854                 bsg_job->request_payload.sg_list,
1855                 bsg_job->request_payload.sg_cnt,
1856                 DMA_TO_DEVICE);
1857
1858         if (!req_sg_cnt) {
1859                 rval = EXT_STATUS_NO_MEMORY;
1860                 goto done;
1861         }
1862
1863         rsp_sg_cnt = dma_map_sg(&ha->pdev->dev,
1864                 bsg_job->reply_payload.sg_list, bsg_job->reply_payload.sg_cnt,
1865                 DMA_FROM_DEVICE);
1866
1867         if (!rsp_sg_cnt) {
1868                 rval = EXT_STATUS_NO_MEMORY;
1869                 goto done_unmap_req_sg;
1870         }
1871
1872         if ((req_sg_cnt !=  bsg_job->request_payload.sg_cnt) ||
1873                 (rsp_sg_cnt != bsg_job->reply_payload.sg_cnt)) {
1874                 ql_dbg(ql_dbg_user, vha, 0x70a9,
1875                     "Dma mapping resulted in different sg counts "
1876                     "[request_sg_cnt: %x dma_request_sg_cnt: %x reply_sg_cnt: "
1877                     "%x dma_reply_sg_cnt: %x]\n",
1878                     bsg_job->request_payload.sg_cnt, req_sg_cnt,
1879                     bsg_job->reply_payload.sg_cnt, rsp_sg_cnt);
1880                 rval = EXT_STATUS_NO_MEMORY;
1881                 goto done_unmap_sg;
1882         }
1883
1884         if (req_data_len != rsp_data_len) {
1885                 rval = EXT_STATUS_BUSY;
1886                 ql_log(ql_log_warn, vha, 0x70aa,
1887                     "req_data_len != rsp_data_len\n");
1888                 goto done_unmap_sg;
1889         }
1890
1891         req_data_len = bsg_job->request_payload.payload_len;
1892         rsp_data_len = bsg_job->reply_payload.payload_len;
1893
1894
1895         /* Alloc SRB structure */
1896         sp = qla2x00_get_sp(vha, &(vha->bidir_fcport), GFP_KERNEL);
1897         if (!sp) {
1898                 ql_dbg(ql_dbg_user, vha, 0x70ac,
1899                     "Alloc SRB structure failed\n");
1900                 rval = EXT_STATUS_NO_MEMORY;
1901                 goto done_unmap_sg;
1902         }
1903
1904         /*Populate srb->ctx with bidir ctx*/
1905         sp->u.bsg_job = bsg_job;
1906         sp->free = qla2x00_bsg_sp_free;
1907         sp->type = SRB_BIDI_CMD;
1908         sp->done = qla2x00_bsg_job_done;
1909
1910         /* Add the read and write sg count */
1911         tot_dsds = rsp_sg_cnt + req_sg_cnt;
1912
1913         rval = qla2x00_start_bidir(sp, vha, tot_dsds);
1914         if (rval != EXT_STATUS_OK)
1915                 goto done_free_srb;
1916         /* the bsg request  will be completed in the interrupt handler */
1917         return rval;
1918
1919 done_free_srb:
1920         mempool_free(sp, ha->srb_mempool);
1921 done_unmap_sg:
1922         dma_unmap_sg(&ha->pdev->dev,
1923             bsg_job->reply_payload.sg_list,
1924             bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1925 done_unmap_req_sg:
1926         dma_unmap_sg(&ha->pdev->dev,
1927             bsg_job->request_payload.sg_list,
1928             bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1929 done:
1930
1931         /* Return an error vendor specific response
1932          * and complete the bsg request
1933          */
1934         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
1935         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1936         bsg_reply->reply_payload_rcv_len = 0;
1937         bsg_reply->result = (DID_OK) << 16;
1938         bsg_job_done(bsg_job, bsg_reply->result,
1939                        bsg_reply->reply_payload_rcv_len);
1940         /* Always return success, vendor rsp carries correct status */
1941         return 0;
1942 }
1943
1944 static int
1945 qlafx00_mgmt_cmd(struct bsg_job *bsg_job)
1946 {
1947         struct fc_bsg_request *bsg_request = bsg_job->request;
1948         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1949         scsi_qla_host_t *vha = shost_priv(host);
1950         struct qla_hw_data *ha = vha->hw;
1951         int rval = (DRIVER_ERROR << 16);
1952         struct qla_mt_iocb_rqst_fx00 *piocb_rqst;
1953         srb_t *sp;
1954         int req_sg_cnt = 0, rsp_sg_cnt = 0;
1955         struct fc_port *fcport;
1956         char  *type = "FC_BSG_HST_FX_MGMT";
1957
1958         /* Copy the IOCB specific information */
1959         piocb_rqst = (struct qla_mt_iocb_rqst_fx00 *)
1960             &bsg_request->rqst_data.h_vendor.vendor_cmd[1];
1961
1962         /* Dump the vendor information */
1963         ql_dump_buffer(ql_dbg_user + ql_dbg_verbose , vha, 0x70cf,
1964             (uint8_t *)piocb_rqst, sizeof(struct qla_mt_iocb_rqst_fx00));
1965
1966         if (!vha->flags.online) {
1967                 ql_log(ql_log_warn, vha, 0x70d0,
1968                     "Host is not online.\n");
1969                 rval = -EIO;
1970                 goto done;
1971         }
1972
1973         if (piocb_rqst->flags & SRB_FXDISC_REQ_DMA_VALID) {
1974                 req_sg_cnt = dma_map_sg(&ha->pdev->dev,
1975                     bsg_job->request_payload.sg_list,
1976                     bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1977                 if (!req_sg_cnt) {
1978                         ql_log(ql_log_warn, vha, 0x70c7,
1979                             "dma_map_sg return %d for request\n", req_sg_cnt);
1980                         rval = -ENOMEM;
1981                         goto done;
1982                 }
1983         }
1984
1985         if (piocb_rqst->flags & SRB_FXDISC_RESP_DMA_VALID) {
1986                 rsp_sg_cnt = dma_map_sg(&ha->pdev->dev,
1987                     bsg_job->reply_payload.sg_list,
1988                     bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1989                 if (!rsp_sg_cnt) {
1990                         ql_log(ql_log_warn, vha, 0x70c8,
1991                             "dma_map_sg return %d for reply\n", rsp_sg_cnt);
1992                         rval = -ENOMEM;
1993                         goto done_unmap_req_sg;
1994                 }
1995         }
1996
1997         ql_dbg(ql_dbg_user, vha, 0x70c9,
1998             "request_sg_cnt: %x dma_request_sg_cnt: %x reply_sg_cnt:%x "
1999             "dma_reply_sg_cnt: %x\n", bsg_job->request_payload.sg_cnt,
2000             req_sg_cnt, bsg_job->reply_payload.sg_cnt, rsp_sg_cnt);
2001
2002         /* Allocate a dummy fcport structure, since functions preparing the
2003          * IOCB and mailbox command retrieves port specific information
2004          * from fcport structure. For Host based ELS commands there will be
2005          * no fcport structure allocated
2006          */
2007         fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
2008         if (!fcport) {
2009                 ql_log(ql_log_warn, vha, 0x70ca,
2010                     "Failed to allocate fcport.\n");
2011                 rval = -ENOMEM;
2012                 goto done_unmap_rsp_sg;
2013         }
2014
2015         /* Alloc SRB structure */
2016         sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
2017         if (!sp) {
2018                 ql_log(ql_log_warn, vha, 0x70cb,
2019                     "qla2x00_get_sp failed.\n");
2020                 rval = -ENOMEM;
2021                 goto done_free_fcport;
2022         }
2023
2024         /* Initialize all required  fields of fcport */
2025         fcport->vha = vha;
2026         fcport->loop_id = piocb_rqst->dataword;
2027
2028         sp->type = SRB_FXIOCB_BCMD;
2029         sp->name = "bsg_fx_mgmt";
2030         sp->iocbs = qla24xx_calc_ct_iocbs(req_sg_cnt + rsp_sg_cnt);
2031         sp->u.bsg_job = bsg_job;
2032         sp->free = qla2x00_bsg_sp_free;
2033         sp->done = qla2x00_bsg_job_done;
2034
2035         ql_dbg(ql_dbg_user, vha, 0x70cc,
2036             "bsg rqst type: %s fx_mgmt_type: %x id=%x\n",
2037             type, piocb_rqst->func_type, fcport->loop_id);
2038
2039         rval = qla2x00_start_sp(sp);
2040         if (rval != QLA_SUCCESS) {
2041                 ql_log(ql_log_warn, vha, 0x70cd,
2042                     "qla2x00_start_sp failed=%d.\n", rval);
2043                 mempool_free(sp, ha->srb_mempool);
2044                 rval = -EIO;
2045                 goto done_free_fcport;
2046         }
2047         return rval;
2048
2049 done_free_fcport:
2050         kfree(fcport);
2051
2052 done_unmap_rsp_sg:
2053         if (piocb_rqst->flags & SRB_FXDISC_RESP_DMA_VALID)
2054                 dma_unmap_sg(&ha->pdev->dev,
2055                     bsg_job->reply_payload.sg_list,
2056                     bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
2057 done_unmap_req_sg:
2058         if (piocb_rqst->flags & SRB_FXDISC_REQ_DMA_VALID)
2059                 dma_unmap_sg(&ha->pdev->dev,
2060                     bsg_job->request_payload.sg_list,
2061                     bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
2062
2063 done:
2064         return rval;
2065 }
2066
2067 static int
2068 qla26xx_serdes_op(struct bsg_job *bsg_job)
2069 {
2070         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
2071         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
2072         scsi_qla_host_t *vha = shost_priv(host);
2073         int rval = 0;
2074         struct qla_serdes_reg sr;
2075
2076         memset(&sr, 0, sizeof(sr));
2077
2078         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
2079             bsg_job->request_payload.sg_cnt, &sr, sizeof(sr));
2080
2081         switch (sr.cmd) {
2082         case INT_SC_SERDES_WRITE_REG:
2083                 rval = qla2x00_write_serdes_word(vha, sr.addr, sr.val);
2084                 bsg_reply->reply_payload_rcv_len = 0;
2085                 break;
2086         case INT_SC_SERDES_READ_REG:
2087                 rval = qla2x00_read_serdes_word(vha, sr.addr, &sr.val);
2088                 sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
2089                     bsg_job->reply_payload.sg_cnt, &sr, sizeof(sr));
2090                 bsg_reply->reply_payload_rcv_len = sizeof(sr);
2091                 break;
2092         default:
2093                 ql_dbg(ql_dbg_user, vha, 0x708c,
2094                     "Unknown serdes cmd %x.\n", sr.cmd);
2095                 rval = -EINVAL;
2096                 break;
2097         }
2098
2099         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
2100             rval ? EXT_STATUS_MAILBOX : 0;
2101
2102         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2103         bsg_reply->result = DID_OK << 16;
2104         bsg_job_done(bsg_job, bsg_reply->result,
2105                        bsg_reply->reply_payload_rcv_len);
2106         return 0;
2107 }
2108
2109 static int
2110 qla8044_serdes_op(struct bsg_job *bsg_job)
2111 {
2112         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
2113         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
2114         scsi_qla_host_t *vha = shost_priv(host);
2115         int rval = 0;
2116         struct qla_serdes_reg_ex sr;
2117
2118         memset(&sr, 0, sizeof(sr));
2119
2120         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
2121             bsg_job->request_payload.sg_cnt, &sr, sizeof(sr));
2122
2123         switch (sr.cmd) {
2124         case INT_SC_SERDES_WRITE_REG:
2125                 rval = qla8044_write_serdes_word(vha, sr.addr, sr.val);
2126                 bsg_reply->reply_payload_rcv_len = 0;
2127                 break;
2128         case INT_SC_SERDES_READ_REG:
2129                 rval = qla8044_read_serdes_word(vha, sr.addr, &sr.val);
2130                 sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
2131                     bsg_job->reply_payload.sg_cnt, &sr, sizeof(sr));
2132                 bsg_reply->reply_payload_rcv_len = sizeof(sr);
2133                 break;
2134         default:
2135                 ql_dbg(ql_dbg_user, vha, 0x7020,
2136                     "Unknown serdes cmd %x.\n", sr.cmd);
2137                 rval = -EINVAL;
2138                 break;
2139         }
2140
2141         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
2142             rval ? EXT_STATUS_MAILBOX : 0;
2143
2144         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2145         bsg_reply->result = DID_OK << 16;
2146         bsg_job_done(bsg_job, bsg_reply->result,
2147                        bsg_reply->reply_payload_rcv_len);
2148         return 0;
2149 }
2150
2151 static int
2152 qla27xx_get_flash_upd_cap(struct bsg_job *bsg_job)
2153 {
2154         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
2155         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
2156         scsi_qla_host_t *vha = shost_priv(host);
2157         struct qla_hw_data *ha = vha->hw;
2158         struct qla_flash_update_caps cap;
2159
2160         if (!(IS_QLA27XX(ha)))
2161                 return -EPERM;
2162
2163         memset(&cap, 0, sizeof(cap));
2164         cap.capabilities = (uint64_t)ha->fw_attributes_ext[1] << 48 |
2165                            (uint64_t)ha->fw_attributes_ext[0] << 32 |
2166                            (uint64_t)ha->fw_attributes_h << 16 |
2167                            (uint64_t)ha->fw_attributes;
2168
2169         sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
2170             bsg_job->reply_payload.sg_cnt, &cap, sizeof(cap));
2171         bsg_reply->reply_payload_rcv_len = sizeof(cap);
2172
2173         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
2174             EXT_STATUS_OK;
2175
2176         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2177         bsg_reply->result = DID_OK << 16;
2178         bsg_job_done(bsg_job, bsg_reply->result,
2179                        bsg_reply->reply_payload_rcv_len);
2180         return 0;
2181 }
2182
2183 static int
2184 qla27xx_set_flash_upd_cap(struct bsg_job *bsg_job)
2185 {
2186         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
2187         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
2188         scsi_qla_host_t *vha = shost_priv(host);
2189         struct qla_hw_data *ha = vha->hw;
2190         uint64_t online_fw_attr = 0;
2191         struct qla_flash_update_caps cap;
2192
2193         if (!(IS_QLA27XX(ha)))
2194                 return -EPERM;
2195
2196         memset(&cap, 0, sizeof(cap));
2197         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
2198             bsg_job->request_payload.sg_cnt, &cap, sizeof(cap));
2199
2200         online_fw_attr = (uint64_t)ha->fw_attributes_ext[1] << 48 |
2201                          (uint64_t)ha->fw_attributes_ext[0] << 32 |
2202                          (uint64_t)ha->fw_attributes_h << 16 |
2203                          (uint64_t)ha->fw_attributes;
2204
2205         if (online_fw_attr != cap.capabilities) {
2206                 bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
2207                     EXT_STATUS_INVALID_PARAM;
2208                 return -EINVAL;
2209         }
2210
2211         if (cap.outage_duration < MAX_LOOP_TIMEOUT)  {
2212                 bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
2213                     EXT_STATUS_INVALID_PARAM;
2214                 return -EINVAL;
2215         }
2216
2217         bsg_reply->reply_payload_rcv_len = 0;
2218
2219         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
2220             EXT_STATUS_OK;
2221
2222         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2223         bsg_reply->result = DID_OK << 16;
2224         bsg_job_done(bsg_job, bsg_reply->result,
2225                        bsg_reply->reply_payload_rcv_len);
2226         return 0;
2227 }
2228
2229 static int
2230 qla27xx_get_bbcr_data(struct bsg_job *bsg_job)
2231 {
2232         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
2233         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
2234         scsi_qla_host_t *vha = shost_priv(host);
2235         struct qla_hw_data *ha = vha->hw;
2236         struct qla_bbcr_data bbcr;
2237         uint16_t loop_id, topo, sw_cap;
2238         uint8_t domain, area, al_pa, state;
2239         int rval;
2240
2241         if (!(IS_QLA27XX(ha)))
2242                 return -EPERM;
2243
2244         memset(&bbcr, 0, sizeof(bbcr));
2245
2246         if (vha->flags.bbcr_enable)
2247                 bbcr.status = QLA_BBCR_STATUS_ENABLED;
2248         else
2249                 bbcr.status = QLA_BBCR_STATUS_DISABLED;
2250
2251         if (bbcr.status == QLA_BBCR_STATUS_ENABLED) {
2252                 rval = qla2x00_get_adapter_id(vha, &loop_id, &al_pa,
2253                         &area, &domain, &topo, &sw_cap);
2254                 if (rval != QLA_SUCCESS) {
2255                         bbcr.status = QLA_BBCR_STATUS_UNKNOWN;
2256                         bbcr.state = QLA_BBCR_STATE_OFFLINE;
2257                         bbcr.mbx1 = loop_id;
2258                         goto done;
2259                 }
2260
2261                 state = (vha->bbcr >> 12) & 0x1;
2262
2263                 if (state) {
2264                         bbcr.state = QLA_BBCR_STATE_OFFLINE;
2265                         bbcr.offline_reason_code = QLA_BBCR_REASON_LOGIN_REJECT;
2266                 } else {
2267                         bbcr.state = QLA_BBCR_STATE_ONLINE;
2268                         bbcr.negotiated_bbscn = (vha->bbcr >> 8) & 0xf;
2269                 }
2270
2271                 bbcr.configured_bbscn = vha->bbcr & 0xf;
2272         }
2273
2274 done:
2275         sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
2276                 bsg_job->reply_payload.sg_cnt, &bbcr, sizeof(bbcr));
2277         bsg_reply->reply_payload_rcv_len = sizeof(bbcr);
2278
2279         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = EXT_STATUS_OK;
2280
2281         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2282         bsg_reply->result = DID_OK << 16;
2283         bsg_job_done(bsg_job, bsg_reply->result,
2284                        bsg_reply->reply_payload_rcv_len);
2285         return 0;
2286 }
2287
2288 static int
2289 qla2x00_get_priv_stats(struct bsg_job *bsg_job)
2290 {
2291         struct fc_bsg_request *bsg_request = bsg_job->request;
2292         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
2293         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
2294         scsi_qla_host_t *vha = shost_priv(host);
2295         struct qla_hw_data *ha = vha->hw;
2296         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
2297         struct link_statistics *stats = NULL;
2298         dma_addr_t stats_dma;
2299         int rval;
2300         uint32_t *cmd = bsg_request->rqst_data.h_vendor.vendor_cmd;
2301         uint options = cmd[0] == QL_VND_GET_PRIV_STATS_EX ? cmd[1] : 0;
2302
2303         if (test_bit(UNLOADING, &vha->dpc_flags))
2304                 return -ENODEV;
2305
2306         if (unlikely(pci_channel_offline(ha->pdev)))
2307                 return -ENODEV;
2308
2309         if (qla2x00_reset_active(vha))
2310                 return -EBUSY;
2311
2312         if (!IS_FWI2_CAPABLE(ha))
2313                 return -EPERM;
2314
2315         stats = dma_alloc_coherent(&ha->pdev->dev, sizeof(*stats), &stats_dma,
2316                                    GFP_KERNEL);
2317         if (!stats) {
2318                 ql_log(ql_log_warn, vha, 0x70e2,
2319                     "Failed to allocate memory for stats.\n");
2320                 return -ENOMEM;
2321         }
2322
2323         rval = qla24xx_get_isp_stats(base_vha, stats, stats_dma, options);
2324
2325         if (rval == QLA_SUCCESS) {
2326                 ql_dump_buffer(ql_dbg_user + ql_dbg_verbose, vha, 0x70e3,
2327                     (uint8_t *)stats, sizeof(*stats));
2328                 sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
2329                         bsg_job->reply_payload.sg_cnt, stats, sizeof(*stats));
2330         }
2331
2332         bsg_reply->reply_payload_rcv_len = sizeof(*stats);
2333         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
2334             rval ? EXT_STATUS_MAILBOX : EXT_STATUS_OK;
2335
2336         bsg_job->reply_len = sizeof(*bsg_reply);
2337         bsg_reply->result = DID_OK << 16;
2338         bsg_job_done(bsg_job, bsg_reply->result,
2339                        bsg_reply->reply_payload_rcv_len);
2340
2341         dma_free_coherent(&ha->pdev->dev, sizeof(*stats),
2342                 stats, stats_dma);
2343
2344         return 0;
2345 }
2346
2347 static int
2348 qla2x00_do_dport_diagnostics(struct bsg_job *bsg_job)
2349 {
2350         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
2351         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
2352         scsi_qla_host_t *vha = shost_priv(host);
2353         int rval;
2354         struct qla_dport_diag *dd;
2355
2356         if (!IS_QLA83XX(vha->hw) && !IS_QLA27XX(vha->hw))
2357                 return -EPERM;
2358
2359         dd = kmalloc(sizeof(*dd), GFP_KERNEL);
2360         if (!dd) {
2361                 ql_log(ql_log_warn, vha, 0x70db,
2362                     "Failed to allocate memory for dport.\n");
2363                 return -ENOMEM;
2364         }
2365
2366         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
2367             bsg_job->request_payload.sg_cnt, dd, sizeof(*dd));
2368
2369         rval = qla26xx_dport_diagnostics(
2370             vha, dd->buf, sizeof(dd->buf), dd->options);
2371         if (rval == QLA_SUCCESS) {
2372                 sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
2373                     bsg_job->reply_payload.sg_cnt, dd, sizeof(*dd));
2374         }
2375
2376         bsg_reply->reply_payload_rcv_len = sizeof(*dd);
2377         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
2378             rval ? EXT_STATUS_MAILBOX : EXT_STATUS_OK;
2379
2380         bsg_job->reply_len = sizeof(*bsg_reply);
2381         bsg_reply->result = DID_OK << 16;
2382         bsg_job_done(bsg_job, bsg_reply->result,
2383                        bsg_reply->reply_payload_rcv_len);
2384
2385         kfree(dd);
2386
2387         return 0;
2388 }
2389
2390 static int
2391 qla2x00_process_vendor_specific(struct bsg_job *bsg_job)
2392 {
2393         struct fc_bsg_request *bsg_request = bsg_job->request;
2394
2395         switch (bsg_request->rqst_data.h_vendor.vendor_cmd[0]) {
2396         case QL_VND_LOOPBACK:
2397                 return qla2x00_process_loopback(bsg_job);
2398
2399         case QL_VND_A84_RESET:
2400                 return qla84xx_reset(bsg_job);
2401
2402         case QL_VND_A84_UPDATE_FW:
2403                 return qla84xx_updatefw(bsg_job);
2404
2405         case QL_VND_A84_MGMT_CMD:
2406                 return qla84xx_mgmt_cmd(bsg_job);
2407
2408         case QL_VND_IIDMA:
2409                 return qla24xx_iidma(bsg_job);
2410
2411         case QL_VND_FCP_PRIO_CFG_CMD:
2412                 return qla24xx_proc_fcp_prio_cfg_cmd(bsg_job);
2413
2414         case QL_VND_READ_FLASH:
2415                 return qla2x00_read_optrom(bsg_job);
2416
2417         case QL_VND_UPDATE_FLASH:
2418                 return qla2x00_update_optrom(bsg_job);
2419
2420         case QL_VND_SET_FRU_VERSION:
2421                 return qla2x00_update_fru_versions(bsg_job);
2422
2423         case QL_VND_READ_FRU_STATUS:
2424                 return qla2x00_read_fru_status(bsg_job);
2425
2426         case QL_VND_WRITE_FRU_STATUS:
2427                 return qla2x00_write_fru_status(bsg_job);
2428
2429         case QL_VND_WRITE_I2C:
2430                 return qla2x00_write_i2c(bsg_job);
2431
2432         case QL_VND_READ_I2C:
2433                 return qla2x00_read_i2c(bsg_job);
2434
2435         case QL_VND_DIAG_IO_CMD:
2436                 return qla24xx_process_bidir_cmd(bsg_job);
2437
2438         case QL_VND_FX00_MGMT_CMD:
2439                 return qlafx00_mgmt_cmd(bsg_job);
2440
2441         case QL_VND_SERDES_OP:
2442                 return qla26xx_serdes_op(bsg_job);
2443
2444         case QL_VND_SERDES_OP_EX:
2445                 return qla8044_serdes_op(bsg_job);
2446
2447         case QL_VND_GET_FLASH_UPDATE_CAPS:
2448                 return qla27xx_get_flash_upd_cap(bsg_job);
2449
2450         case QL_VND_SET_FLASH_UPDATE_CAPS:
2451                 return qla27xx_set_flash_upd_cap(bsg_job);
2452
2453         case QL_VND_GET_BBCR_DATA:
2454                 return qla27xx_get_bbcr_data(bsg_job);
2455
2456         case QL_VND_GET_PRIV_STATS:
2457         case QL_VND_GET_PRIV_STATS_EX:
2458                 return qla2x00_get_priv_stats(bsg_job);
2459
2460         case QL_VND_DPORT_DIAGNOSTICS:
2461                 return qla2x00_do_dport_diagnostics(bsg_job);
2462
2463         default:
2464                 return -ENOSYS;
2465         }
2466 }
2467
2468 int
2469 qla24xx_bsg_request(struct bsg_job *bsg_job)
2470 {
2471         struct fc_bsg_request *bsg_request = bsg_job->request;
2472         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
2473         int ret = -EINVAL;
2474         struct fc_rport *rport;
2475         struct Scsi_Host *host;
2476         scsi_qla_host_t *vha;
2477
2478         /* In case no data transferred. */
2479         bsg_reply->reply_payload_rcv_len = 0;
2480
2481         if (bsg_request->msgcode == FC_BSG_RPT_ELS) {
2482                 rport = fc_bsg_to_rport(bsg_job);
2483                 host = rport_to_shost(rport);
2484                 vha = shost_priv(host);
2485         } else {
2486                 host = fc_bsg_to_shost(bsg_job);
2487                 vha = shost_priv(host);
2488         }
2489
2490         if (qla2x00_chip_is_down(vha)) {
2491                 ql_dbg(ql_dbg_user, vha, 0x709f,
2492                     "BSG: ISP abort active/needed -- cmd=%d.\n",
2493                     bsg_request->msgcode);
2494                 return -EBUSY;
2495         }
2496
2497         ql_dbg(ql_dbg_user, vha, 0x7000,
2498             "Entered %s msgcode=0x%x.\n", __func__, bsg_request->msgcode);
2499
2500         switch (bsg_request->msgcode) {
2501         case FC_BSG_RPT_ELS:
2502         case FC_BSG_HST_ELS_NOLOGIN:
2503                 ret = qla2x00_process_els(bsg_job);
2504                 break;
2505         case FC_BSG_HST_CT:
2506                 ret = qla2x00_process_ct(bsg_job);
2507                 break;
2508         case FC_BSG_HST_VENDOR:
2509                 ret = qla2x00_process_vendor_specific(bsg_job);
2510                 break;
2511         case FC_BSG_HST_ADD_RPORT:
2512         case FC_BSG_HST_DEL_RPORT:
2513         case FC_BSG_RPT_CT:
2514         default:
2515                 ql_log(ql_log_warn, vha, 0x705a, "Unsupported BSG request.\n");
2516                 break;
2517         }
2518         return ret;
2519 }
2520
2521 int
2522 qla24xx_bsg_timeout(struct bsg_job *bsg_job)
2523 {
2524         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
2525         scsi_qla_host_t *vha = shost_priv(fc_bsg_to_shost(bsg_job));
2526         struct qla_hw_data *ha = vha->hw;
2527         srb_t *sp;
2528         int cnt, que;
2529         unsigned long flags;
2530         struct req_que *req;
2531
2532         /* find the bsg job from the active list of commands */
2533         spin_lock_irqsave(&ha->hardware_lock, flags);
2534         for (que = 0; que < ha->max_req_queues; que++) {
2535                 req = ha->req_q_map[que];
2536                 if (!req)
2537                         continue;
2538
2539                 for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
2540                         sp = req->outstanding_cmds[cnt];
2541                         if (sp) {
2542                                 if (((sp->type == SRB_CT_CMD) ||
2543                                         (sp->type == SRB_ELS_CMD_HST) ||
2544                                         (sp->type == SRB_FXIOCB_BCMD))
2545                                         && (sp->u.bsg_job == bsg_job)) {
2546                                         req->outstanding_cmds[cnt] = NULL;
2547                                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2548                                         if (ha->isp_ops->abort_command(sp)) {
2549                                                 ql_log(ql_log_warn, vha, 0x7089,
2550                                                     "mbx abort_command "
2551                                                     "failed.\n");
2552                                                 bsg_reply->result = -EIO;
2553                                         } else {
2554                                                 ql_dbg(ql_dbg_user, vha, 0x708a,
2555                                                     "mbx abort_command "
2556                                                     "success.\n");
2557                                                 bsg_reply->result = 0;
2558                                         }
2559                                         spin_lock_irqsave(&ha->hardware_lock, flags);
2560                                         goto done;
2561                                 }
2562                         }
2563                 }
2564         }
2565         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2566         ql_log(ql_log_info, vha, 0x708b, "SRB not found to abort.\n");
2567         bsg_reply->result = -ENXIO;
2568         return 0;
2569
2570 done:
2571         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2572         sp->free(sp);
2573         return 0;
2574 }