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 suppored 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 = ((uint8_t *)scsi_req(bsg_job->req)->sense) +
 923             sizeof(struct fc_bsg_reply);
 924         memcpy(fw_sts_ptr, response, 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_alloc(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         memset(mn, 0, sizeof(struct access_chip_84xx));
1050         mn->entry_type = VERIFY_CHIP_IOCB_TYPE;
1051         mn->entry_count = 1;
1052
1053         options = VCO_FORCE_UPDATE | VCO_END_OF_DATA;
1054         if (flag == A84_ISSUE_UPDATE_DIAGFW_CMD)
1055                 options |= VCO_DIAG_FW;
1056
1057         mn->options = cpu_to_le16(options);
1058         mn->fw_ver =  cpu_to_le32(fw_ver);
1059         mn->fw_size =  cpu_to_le32(data_len);
1060         mn->fw_seq_size =  cpu_to_le32(data_len);
1061         mn->dseg_address[0] = cpu_to_le32(LSD(fw_dma));
1062         mn->dseg_address[1] = cpu_to_le32(MSD(fw_dma));
1063         mn->dseg_length = cpu_to_le32(data_len);
1064         mn->data_seg_cnt = cpu_to_le16(1);
1065
1066         rval = qla2x00_issue_iocb_timeout(vha, mn, mn_dma, 0, 120);
1067
1068         if (rval) {
1069                 ql_log(ql_log_warn, vha, 0x7037,
1070                     "Vendor request 84xx updatefw failed.\n");
1071
1072                 rval = (DID_ERROR << 16);
1073         } else {
1074                 ql_dbg(ql_dbg_user, vha, 0x7038,
1075                     "Vendor request 84xx updatefw completed.\n");
1076
1077                 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1078                 bsg_reply->result = DID_OK;
1079         }
1080
1081         dma_pool_free(ha->s_dma_pool, mn, mn_dma);
1082
1083 done_free_fw_buf:
1084         dma_free_coherent(&ha->pdev->dev, data_len, fw_buf, fw_dma);
1085
1086 done_unmap_sg:
1087         dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
1088                 bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1089
1090         if (!rval)
1091                 bsg_job_done(bsg_job, bsg_reply->result,
1092                                bsg_reply->reply_payload_rcv_len);
1093         return rval;
1094 }
1095
1096 static int
1097 qla84xx_mgmt_cmd(struct bsg_job *bsg_job)
1098 {
1099         struct fc_bsg_request *bsg_request = bsg_job->request;
1100         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1101         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1102         scsi_qla_host_t *vha = shost_priv(host);
1103         struct qla_hw_data *ha = vha->hw;
1104         struct access_chip_84xx *mn = NULL;
1105         dma_addr_t mn_dma, mgmt_dma;
1106         void *mgmt_b = NULL;
1107         int rval = 0;
1108         struct qla_bsg_a84_mgmt *ql84_mgmt;
1109         uint32_t sg_cnt;
1110         uint32_t data_len = 0;
1111         uint32_t dma_direction = DMA_NONE;
1112
1113         if (!IS_QLA84XX(ha)) {
1114                 ql_log(ql_log_warn, vha, 0x703a,
1115                     "Not 84xx, exiting.\n");
1116                 return -EINVAL;
1117         }
1118
1119         mn = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &mn_dma);
1120         if (!mn) {
1121                 ql_log(ql_log_warn, vha, 0x703c,
1122                     "DMA alloc failed for fw buffer.\n");
1123                 return -ENOMEM;
1124         }
1125
1126         memset(mn, 0, sizeof(struct access_chip_84xx));
1127         mn->entry_type = ACCESS_CHIP_IOCB_TYPE;
1128         mn->entry_count = 1;
1129         ql84_mgmt = (void *)bsg_request + sizeof(struct fc_bsg_request);
1130         switch (ql84_mgmt->mgmt.cmd) {
1131         case QLA84_MGMT_READ_MEM:
1132         case QLA84_MGMT_GET_INFO:
1133                 sg_cnt = dma_map_sg(&ha->pdev->dev,
1134                         bsg_job->reply_payload.sg_list,
1135                         bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1136                 if (!sg_cnt) {
1137                         ql_log(ql_log_warn, vha, 0x703d,
1138                             "dma_map_sg returned %d for reply.\n", sg_cnt);
1139                         rval = -ENOMEM;
1140                         goto exit_mgmt;
1141                 }
1142
1143                 dma_direction = DMA_FROM_DEVICE;
1144
1145                 if (sg_cnt != bsg_job->reply_payload.sg_cnt) {
1146                         ql_log(ql_log_warn, vha, 0x703e,
1147                             "DMA mapping resulted in different sg counts, "
1148                             "reply_sg_cnt: %x dma_reply_sg_cnt: %x.\n",
1149                             bsg_job->reply_payload.sg_cnt, sg_cnt);
1150                         rval = -EAGAIN;
1151                         goto done_unmap_sg;
1152                 }
1153
1154                 data_len = bsg_job->reply_payload.payload_len;
1155
1156                 mgmt_b = dma_alloc_coherent(&ha->pdev->dev, data_len,
1157                     &mgmt_dma, GFP_KERNEL);
1158                 if (!mgmt_b) {
1159                         ql_log(ql_log_warn, vha, 0x703f,
1160                             "DMA alloc failed for mgmt_b.\n");
1161                         rval = -ENOMEM;
1162                         goto done_unmap_sg;
1163                 }
1164
1165                 if (ql84_mgmt->mgmt.cmd == QLA84_MGMT_READ_MEM) {
1166                         mn->options = cpu_to_le16(ACO_DUMP_MEMORY);
1167                         mn->parameter1 =
1168                                 cpu_to_le32(
1169                                 ql84_mgmt->mgmt.mgmtp.u.mem.start_addr);
1170
1171                 } else if (ql84_mgmt->mgmt.cmd == QLA84_MGMT_GET_INFO) {
1172                         mn->options = cpu_to_le16(ACO_REQUEST_INFO);
1173                         mn->parameter1 =
1174                                 cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.info.type);
1175
1176                         mn->parameter2 =
1177                                 cpu_to_le32(
1178                                 ql84_mgmt->mgmt.mgmtp.u.info.context);
1179                 }
1180                 break;
1181
1182         case QLA84_MGMT_WRITE_MEM:
1183                 sg_cnt = dma_map_sg(&ha->pdev->dev,
1184                         bsg_job->request_payload.sg_list,
1185                         bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1186
1187                 if (!sg_cnt) {
1188                         ql_log(ql_log_warn, vha, 0x7040,
1189                             "dma_map_sg returned %d.\n", sg_cnt);
1190                         rval = -ENOMEM;
1191                         goto exit_mgmt;
1192                 }
1193
1194                 dma_direction = DMA_TO_DEVICE;
1195
1196                 if (sg_cnt != bsg_job->request_payload.sg_cnt) {
1197                         ql_log(ql_log_warn, vha, 0x7041,
1198                             "DMA mapping resulted in different sg counts, "
1199                             "request_sg_cnt: %x dma_request_sg_cnt: %x.\n",
1200                             bsg_job->request_payload.sg_cnt, sg_cnt);
1201                         rval = -EAGAIN;
1202                         goto done_unmap_sg;
1203                 }
1204
1205                 data_len = bsg_job->request_payload.payload_len;
1206                 mgmt_b = dma_alloc_coherent(&ha->pdev->dev, data_len,
1207                         &mgmt_dma, GFP_KERNEL);
1208                 if (!mgmt_b) {
1209                         ql_log(ql_log_warn, vha, 0x7042,
1210                             "DMA alloc failed for mgmt_b.\n");
1211                         rval = -ENOMEM;
1212                         goto done_unmap_sg;
1213                 }
1214
1215                 sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1216                         bsg_job->request_payload.sg_cnt, mgmt_b, data_len);
1217
1218                 mn->options = cpu_to_le16(ACO_LOAD_MEMORY);
1219                 mn->parameter1 =
1220                         cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.mem.start_addr);
1221                 break;
1222
1223         case QLA84_MGMT_CHNG_CONFIG:
1224                 mn->options = cpu_to_le16(ACO_CHANGE_CONFIG_PARAM);
1225                 mn->parameter1 =
1226                         cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.config.id);
1227
1228                 mn->parameter2 =
1229                         cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.config.param0);
1230
1231                 mn->parameter3 =
1232                         cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.config.param1);
1233                 break;
1234
1235         default:
1236                 rval = -EIO;
1237                 goto exit_mgmt;
1238         }
1239
1240         if (ql84_mgmt->mgmt.cmd != QLA84_MGMT_CHNG_CONFIG) {
1241                 mn->total_byte_cnt = cpu_to_le32(ql84_mgmt->mgmt.len);
1242                 mn->dseg_count = cpu_to_le16(1);
1243                 mn->dseg_address[0] = cpu_to_le32(LSD(mgmt_dma));
1244                 mn->dseg_address[1] = cpu_to_le32(MSD(mgmt_dma));
1245                 mn->dseg_length = cpu_to_le32(ql84_mgmt->mgmt.len);
1246         }
1247
1248         rval = qla2x00_issue_iocb(vha, mn, mn_dma, 0);
1249
1250         if (rval) {
1251                 ql_log(ql_log_warn, vha, 0x7043,
1252                     "Vendor request 84xx mgmt failed.\n");
1253
1254                 rval = (DID_ERROR << 16);
1255
1256         } else {
1257                 ql_dbg(ql_dbg_user, vha, 0x7044,
1258                     "Vendor request 84xx mgmt completed.\n");
1259
1260                 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1261                 bsg_reply->result = DID_OK;
1262
1263                 if ((ql84_mgmt->mgmt.cmd == QLA84_MGMT_READ_MEM) ||
1264                         (ql84_mgmt->mgmt.cmd == QLA84_MGMT_GET_INFO)) {
1265                         bsg_reply->reply_payload_rcv_len =
1266                                 bsg_job->reply_payload.payload_len;
1267
1268                         sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
1269                                 bsg_job->reply_payload.sg_cnt, mgmt_b,
1270                                 data_len);
1271                 }
1272         }
1273
1274 done_unmap_sg:
1275         if (mgmt_b)
1276                 dma_free_coherent(&ha->pdev->dev, data_len, mgmt_b, mgmt_dma);
1277
1278         if (dma_direction == DMA_TO_DEVICE)
1279                 dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
1280                         bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1281         else if (dma_direction == DMA_FROM_DEVICE)
1282                 dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
1283                         bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1284
1285 exit_mgmt:
1286         dma_pool_free(ha->s_dma_pool, mn, mn_dma);
1287
1288         if (!rval)
1289                 bsg_job_done(bsg_job, bsg_reply->result,
1290                                bsg_reply->reply_payload_rcv_len);
1291         return rval;
1292 }
1293
1294 static int
1295 qla24xx_iidma(struct bsg_job *bsg_job)
1296 {
1297         struct fc_bsg_request *bsg_request = bsg_job->request;
1298         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1299         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1300         scsi_qla_host_t *vha = shost_priv(host);
1301         int rval = 0;
1302         struct qla_port_param *port_param = NULL;
1303         fc_port_t *fcport = NULL;
1304         int found = 0;
1305         uint16_t mb[MAILBOX_REGISTER_COUNT];
1306         uint8_t *rsp_ptr = NULL;
1307
1308         if (!IS_IIDMA_CAPABLE(vha->hw)) {
1309                 ql_log(ql_log_info, vha, 0x7046, "iiDMA not supported.\n");
1310                 return -EINVAL;
1311         }
1312
1313         port_param = (void *)bsg_request + sizeof(struct fc_bsg_request);
1314         if (port_param->fc_scsi_addr.dest_type != EXT_DEF_TYPE_WWPN) {
1315                 ql_log(ql_log_warn, vha, 0x7048,
1316                     "Invalid destination type.\n");
1317                 return -EINVAL;
1318         }
1319
1320         list_for_each_entry(fcport, &vha->vp_fcports, list) {
1321                 if (fcport->port_type != FCT_TARGET)
1322                         continue;
1323
1324                 if (memcmp(port_param->fc_scsi_addr.dest_addr.wwpn,
1325                         fcport->port_name, sizeof(fcport->port_name)))
1326                         continue;
1327
1328                 found = 1;
1329                 break;
1330         }
1331
1332         if (!found) {
1333                 ql_log(ql_log_warn, vha, 0x7049,
1334                     "Failed to find port.\n");
1335                 return -EINVAL;
1336         }
1337
1338         if (atomic_read(&fcport->state) != FCS_ONLINE) {
1339                 ql_log(ql_log_warn, vha, 0x704a,
1340                     "Port is not online.\n");
1341                 return -EINVAL;
1342         }
1343
1344         if (fcport->flags & FCF_LOGIN_NEEDED) {
1345                 ql_log(ql_log_warn, vha, 0x704b,
1346                     "Remote port not logged in flags = 0x%x.\n", fcport->flags);
1347                 return -EINVAL;
1348         }
1349
1350         if (port_param->mode)
1351                 rval = qla2x00_set_idma_speed(vha, fcport->loop_id,
1352                         port_param->speed, mb);
1353         else
1354                 rval = qla2x00_get_idma_speed(vha, fcport->loop_id,
1355                         &port_param->speed, mb);
1356
1357         if (rval) {
1358                 ql_log(ql_log_warn, vha, 0x704c,
1359                     "iIDMA cmd failed for %8phN -- "
1360                     "%04x %x %04x %04x.\n", fcport->port_name,
1361                     rval, fcport->fp_speed, mb[0], mb[1]);
1362                 rval = (DID_ERROR << 16);
1363         } else {
1364                 if (!port_param->mode) {
1365                         bsg_job->reply_len = sizeof(struct fc_bsg_reply) +
1366                                 sizeof(struct qla_port_param);
1367
1368                         rsp_ptr = ((uint8_t *)bsg_reply) +
1369                                 sizeof(struct fc_bsg_reply);
1370
1371                         memcpy(rsp_ptr, port_param,
1372                                 sizeof(struct qla_port_param));
1373                 }
1374
1375                 bsg_reply->result = DID_OK;
1376                 bsg_job_done(bsg_job, bsg_reply->result,
1377                                bsg_reply->reply_payload_rcv_len);
1378         }
1379
1380         return rval;
1381 }
1382
1383 static int
1384 qla2x00_optrom_setup(struct bsg_job *bsg_job, scsi_qla_host_t *vha,
1385         uint8_t is_update)
1386 {
1387         struct fc_bsg_request *bsg_request = bsg_job->request;
1388         uint32_t start = 0;
1389         int valid = 0;
1390         struct qla_hw_data *ha = vha->hw;
1391
1392         if (unlikely(pci_channel_offline(ha->pdev)))
1393                 return -EINVAL;
1394
1395         start = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
1396         if (start > ha->optrom_size) {
1397                 ql_log(ql_log_warn, vha, 0x7055,
1398                     "start %d > optrom_size %d.\n", start, ha->optrom_size);
1399                 return -EINVAL;
1400         }
1401
1402         if (ha->optrom_state != QLA_SWAITING) {
1403                 ql_log(ql_log_info, vha, 0x7056,
1404                     "optrom_state %d.\n", ha->optrom_state);
1405                 return -EBUSY;
1406         }
1407
1408         ha->optrom_region_start = start;
1409         ql_dbg(ql_dbg_user, vha, 0x7057, "is_update=%d.\n", is_update);
1410         if (is_update) {
1411                 if (ha->optrom_size == OPTROM_SIZE_2300 && start == 0)
1412                         valid = 1;
1413                 else if (start == (ha->flt_region_boot * 4) ||
1414                     start == (ha->flt_region_fw * 4))
1415                         valid = 1;
1416                 else if (IS_QLA24XX_TYPE(ha) || IS_QLA25XX(ha) ||
1417                     IS_CNA_CAPABLE(ha) || IS_QLA2031(ha) || IS_QLA27XX(ha))
1418                         valid = 1;
1419                 if (!valid) {
1420                         ql_log(ql_log_warn, vha, 0x7058,
1421                             "Invalid start region 0x%x/0x%x.\n", start,
1422                             bsg_job->request_payload.payload_len);
1423                         return -EINVAL;
1424                 }
1425
1426                 ha->optrom_region_size = start +
1427                     bsg_job->request_payload.payload_len > ha->optrom_size ?
1428                     ha->optrom_size - start :
1429                     bsg_job->request_payload.payload_len;
1430                 ha->optrom_state = QLA_SWRITING;
1431         } else {
1432                 ha->optrom_region_size = start +
1433                     bsg_job->reply_payload.payload_len > ha->optrom_size ?
1434                     ha->optrom_size - start :
1435                     bsg_job->reply_payload.payload_len;
1436                 ha->optrom_state = QLA_SREADING;
1437         }
1438
1439         ha->optrom_buffer = vmalloc(ha->optrom_region_size);
1440         if (!ha->optrom_buffer) {
1441                 ql_log(ql_log_warn, vha, 0x7059,
1442                     "Read: Unable to allocate memory for optrom retrieval "
1443                     "(%x)\n", ha->optrom_region_size);
1444
1445                 ha->optrom_state = QLA_SWAITING;
1446                 return -ENOMEM;
1447         }
1448
1449         memset(ha->optrom_buffer, 0, ha->optrom_region_size);
1450         return 0;
1451 }
1452
1453 static int
1454 qla2x00_read_optrom(struct bsg_job *bsg_job)
1455 {
1456         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1457         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1458         scsi_qla_host_t *vha = shost_priv(host);
1459         struct qla_hw_data *ha = vha->hw;
1460         int rval = 0;
1461
1462         if (ha->flags.nic_core_reset_hdlr_active)
1463                 return -EBUSY;
1464
1465         mutex_lock(&ha->optrom_mutex);
1466         rval = qla2x00_optrom_setup(bsg_job, vha, 0);
1467         if (rval) {
1468                 mutex_unlock(&ha->optrom_mutex);
1469                 return rval;
1470         }
1471
1472         ha->isp_ops->read_optrom(vha, ha->optrom_buffer,
1473             ha->optrom_region_start, ha->optrom_region_size);
1474
1475         sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
1476             bsg_job->reply_payload.sg_cnt, ha->optrom_buffer,
1477             ha->optrom_region_size);
1478
1479         bsg_reply->reply_payload_rcv_len = ha->optrom_region_size;
1480         bsg_reply->result = DID_OK;
1481         vfree(ha->optrom_buffer);
1482         ha->optrom_buffer = NULL;
1483         ha->optrom_state = QLA_SWAITING;
1484         mutex_unlock(&ha->optrom_mutex);
1485         bsg_job_done(bsg_job, bsg_reply->result,
1486                        bsg_reply->reply_payload_rcv_len);
1487         return rval;
1488 }
1489
1490 static int
1491 qla2x00_update_optrom(struct bsg_job *bsg_job)
1492 {
1493         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1494         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1495         scsi_qla_host_t *vha = shost_priv(host);
1496         struct qla_hw_data *ha = vha->hw;
1497         int rval = 0;
1498
1499         mutex_lock(&ha->optrom_mutex);
1500         rval = qla2x00_optrom_setup(bsg_job, vha, 1);
1501         if (rval) {
1502                 mutex_unlock(&ha->optrom_mutex);
1503                 return rval;
1504         }
1505
1506         /* Set the isp82xx_no_md_cap not to capture minidump */
1507         ha->flags.isp82xx_no_md_cap = 1;
1508
1509         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1510             bsg_job->request_payload.sg_cnt, ha->optrom_buffer,
1511             ha->optrom_region_size);
1512
1513         ha->isp_ops->write_optrom(vha, ha->optrom_buffer,
1514             ha->optrom_region_start, ha->optrom_region_size);
1515
1516         bsg_reply->result = DID_OK;
1517         vfree(ha->optrom_buffer);
1518         ha->optrom_buffer = NULL;
1519         ha->optrom_state = QLA_SWAITING;
1520         mutex_unlock(&ha->optrom_mutex);
1521         bsg_job_done(bsg_job, bsg_reply->result,
1522                        bsg_reply->reply_payload_rcv_len);
1523         return rval;
1524 }
1525
1526 static int
1527 qla2x00_update_fru_versions(struct bsg_job *bsg_job)
1528 {
1529         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1530         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1531         scsi_qla_host_t *vha = shost_priv(host);
1532         struct qla_hw_data *ha = vha->hw;
1533         int rval = 0;
1534         uint8_t bsg[DMA_POOL_SIZE];
1535         struct qla_image_version_list *list = (void *)bsg;
1536         struct qla_image_version *image;
1537         uint32_t count;
1538         dma_addr_t sfp_dma;
1539         void *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1540         if (!sfp) {
1541                 bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1542                     EXT_STATUS_NO_MEMORY;
1543                 goto done;
1544         }
1545
1546         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1547             bsg_job->request_payload.sg_cnt, list, sizeof(bsg));
1548
1549         image = list->version;
1550         count = list->count;
1551         while (count--) {
1552                 memcpy(sfp, &image->field_info, sizeof(image->field_info));
1553                 rval = qla2x00_write_sfp(vha, sfp_dma, sfp,
1554                     image->field_address.device, image->field_address.offset,
1555                     sizeof(image->field_info), image->field_address.option);
1556                 if (rval) {
1557                         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1558                             EXT_STATUS_MAILBOX;
1559                         goto dealloc;
1560                 }
1561                 image++;
1562         }
1563
1564         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1565
1566 dealloc:
1567         dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1568
1569 done:
1570         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1571         bsg_reply->result = DID_OK << 16;
1572         bsg_job_done(bsg_job, bsg_reply->result,
1573                        bsg_reply->reply_payload_rcv_len);
1574
1575         return 0;
1576 }
1577
1578 static int
1579 qla2x00_read_fru_status(struct bsg_job *bsg_job)
1580 {
1581         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1582         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1583         scsi_qla_host_t *vha = shost_priv(host);
1584         struct qla_hw_data *ha = vha->hw;
1585         int rval = 0;
1586         uint8_t bsg[DMA_POOL_SIZE];
1587         struct qla_status_reg *sr = (void *)bsg;
1588         dma_addr_t sfp_dma;
1589         uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1590         if (!sfp) {
1591                 bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1592                     EXT_STATUS_NO_MEMORY;
1593                 goto done;
1594         }
1595
1596         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1597             bsg_job->request_payload.sg_cnt, sr, sizeof(*sr));
1598
1599         rval = qla2x00_read_sfp(vha, sfp_dma, sfp,
1600             sr->field_address.device, sr->field_address.offset,
1601             sizeof(sr->status_reg), sr->field_address.option);
1602         sr->status_reg = *sfp;
1603
1604         if (rval) {
1605                 bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1606                     EXT_STATUS_MAILBOX;
1607                 goto dealloc;
1608         }
1609
1610         sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
1611             bsg_job->reply_payload.sg_cnt, sr, sizeof(*sr));
1612
1613         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1614
1615 dealloc:
1616         dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1617
1618 done:
1619         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1620         bsg_reply->reply_payload_rcv_len = sizeof(*sr);
1621         bsg_reply->result = DID_OK << 16;
1622         bsg_job_done(bsg_job, bsg_reply->result,
1623                        bsg_reply->reply_payload_rcv_len);
1624
1625         return 0;
1626 }
1627
1628 static int
1629 qla2x00_write_fru_status(struct bsg_job *bsg_job)
1630 {
1631         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1632         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1633         scsi_qla_host_t *vha = shost_priv(host);
1634         struct qla_hw_data *ha = vha->hw;
1635         int rval = 0;
1636         uint8_t bsg[DMA_POOL_SIZE];
1637         struct qla_status_reg *sr = (void *)bsg;
1638         dma_addr_t sfp_dma;
1639         uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1640         if (!sfp) {
1641                 bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1642                     EXT_STATUS_NO_MEMORY;
1643                 goto done;
1644         }
1645
1646         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1647             bsg_job->request_payload.sg_cnt, sr, sizeof(*sr));
1648
1649         *sfp = sr->status_reg;
1650         rval = qla2x00_write_sfp(vha, sfp_dma, sfp,
1651             sr->field_address.device, sr->field_address.offset,
1652             sizeof(sr->status_reg), sr->field_address.option);
1653
1654         if (rval) {
1655                 bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1656                     EXT_STATUS_MAILBOX;
1657                 goto dealloc;
1658         }
1659
1660         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1661
1662 dealloc:
1663         dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1664
1665 done:
1666         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1667         bsg_reply->result = DID_OK << 16;
1668         bsg_job_done(bsg_job, bsg_reply->result,
1669                        bsg_reply->reply_payload_rcv_len);
1670
1671         return 0;
1672 }
1673
1674 static int
1675 qla2x00_write_i2c(struct bsg_job *bsg_job)
1676 {
1677         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1678         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1679         scsi_qla_host_t *vha = shost_priv(host);
1680         struct qla_hw_data *ha = vha->hw;
1681         int rval = 0;
1682         uint8_t bsg[DMA_POOL_SIZE];
1683         struct qla_i2c_access *i2c = (void *)bsg;
1684         dma_addr_t sfp_dma;
1685         uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1686         if (!sfp) {
1687                 bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1688                     EXT_STATUS_NO_MEMORY;
1689                 goto done;
1690         }
1691
1692         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1693             bsg_job->request_payload.sg_cnt, i2c, sizeof(*i2c));
1694
1695         memcpy(sfp, i2c->buffer, i2c->length);
1696         rval = qla2x00_write_sfp(vha, sfp_dma, sfp,
1697             i2c->device, i2c->offset, i2c->length, i2c->option);
1698
1699         if (rval) {
1700                 bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1701                     EXT_STATUS_MAILBOX;
1702                 goto dealloc;
1703         }
1704
1705         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1706
1707 dealloc:
1708         dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1709
1710 done:
1711         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1712         bsg_reply->result = DID_OK << 16;
1713         bsg_job_done(bsg_job, bsg_reply->result,
1714                        bsg_reply->reply_payload_rcv_len);
1715
1716         return 0;
1717 }
1718
1719 static int
1720 qla2x00_read_i2c(struct bsg_job *bsg_job)
1721 {
1722         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1723         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1724         scsi_qla_host_t *vha = shost_priv(host);
1725         struct qla_hw_data *ha = vha->hw;
1726         int rval = 0;
1727         uint8_t bsg[DMA_POOL_SIZE];
1728         struct qla_i2c_access *i2c = (void *)bsg;
1729         dma_addr_t sfp_dma;
1730         uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
1731         if (!sfp) {
1732                 bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1733                     EXT_STATUS_NO_MEMORY;
1734                 goto done;
1735         }
1736
1737         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
1738             bsg_job->request_payload.sg_cnt, i2c, sizeof(*i2c));
1739
1740         rval = qla2x00_read_sfp(vha, sfp_dma, sfp,
1741                 i2c->device, i2c->offset, i2c->length, i2c->option);
1742
1743         if (rval) {
1744                 bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
1745                     EXT_STATUS_MAILBOX;
1746                 goto dealloc;
1747         }
1748
1749         memcpy(i2c->buffer, sfp, i2c->length);
1750         sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
1751             bsg_job->reply_payload.sg_cnt, i2c, sizeof(*i2c));
1752
1753         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
1754
1755 dealloc:
1756         dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
1757
1758 done:
1759         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1760         bsg_reply->reply_payload_rcv_len = sizeof(*i2c);
1761         bsg_reply->result = DID_OK << 16;
1762         bsg_job_done(bsg_job, bsg_reply->result,
1763                        bsg_reply->reply_payload_rcv_len);
1764
1765         return 0;
1766 }
1767
1768 static int
1769 qla24xx_process_bidir_cmd(struct bsg_job *bsg_job)
1770 {
1771         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
1772         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1773         scsi_qla_host_t *vha = shost_priv(host);
1774         struct qla_hw_data *ha = vha->hw;
1775         uint32_t rval = EXT_STATUS_OK;
1776         uint16_t req_sg_cnt = 0;
1777         uint16_t rsp_sg_cnt = 0;
1778         uint16_t nextlid = 0;
1779         uint32_t tot_dsds;
1780         srb_t *sp = NULL;
1781         uint32_t req_data_len = 0;
1782         uint32_t rsp_data_len = 0;
1783
1784         /* Check the type of the adapter */
1785         if (!IS_BIDI_CAPABLE(ha)) {
1786                 ql_log(ql_log_warn, vha, 0x70a0,
1787                         "This adapter is not supported\n");
1788                 rval = EXT_STATUS_NOT_SUPPORTED;
1789                 goto done;
1790         }
1791
1792         if (test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
1793                 test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) ||
1794                 test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
1795                 rval =  EXT_STATUS_BUSY;
1796                 goto done;
1797         }
1798
1799         /* Check if host is online */
1800         if (!vha->flags.online) {
1801                 ql_log(ql_log_warn, vha, 0x70a1,
1802                         "Host is not online\n");
1803                 rval = EXT_STATUS_DEVICE_OFFLINE;
1804                 goto done;
1805         }
1806
1807         /* Check if cable is plugged in or not */
1808         if (vha->device_flags & DFLG_NO_CABLE) {
1809                 ql_log(ql_log_warn, vha, 0x70a2,
1810                         "Cable is unplugged...\n");
1811                 rval = EXT_STATUS_INVALID_CFG;
1812                 goto done;
1813         }
1814
1815         /* Check if the switch is connected or not */
1816         if (ha->current_topology != ISP_CFG_F) {
1817                 ql_log(ql_log_warn, vha, 0x70a3,
1818                         "Host is not connected to the switch\n");
1819                 rval = EXT_STATUS_INVALID_CFG;
1820                 goto done;
1821         }
1822
1823         /* Check if operating mode is P2P */
1824         if (ha->operating_mode != P2P) {
1825                 ql_log(ql_log_warn, vha, 0x70a4,
1826                     "Host operating mode is not P2p\n");
1827                 rval = EXT_STATUS_INVALID_CFG;
1828                 goto done;
1829         }
1830
1831         mutex_lock(&ha->selflogin_lock);
1832         if (vha->self_login_loop_id == 0) {
1833                 /* Initialize all required  fields of fcport */
1834                 vha->bidir_fcport.vha = vha;
1835                 vha->bidir_fcport.d_id.b.al_pa = vha->d_id.b.al_pa;
1836                 vha->bidir_fcport.d_id.b.area = vha->d_id.b.area;
1837                 vha->bidir_fcport.d_id.b.domain = vha->d_id.b.domain;
1838                 vha->bidir_fcport.loop_id = vha->loop_id;
1839
1840                 if (qla2x00_fabric_login(vha, &(vha->bidir_fcport), &nextlid)) {
1841                         ql_log(ql_log_warn, vha, 0x70a7,
1842                             "Failed to login port %06X for bidirectional IOCB\n",
1843                             vha->bidir_fcport.d_id.b24);
1844                         mutex_unlock(&ha->selflogin_lock);
1845                         rval = EXT_STATUS_MAILBOX;
1846                         goto done;
1847                 }
1848                 vha->self_login_loop_id = nextlid - 1;
1849
1850         }
1851         /* Assign the self login loop id to fcport */
1852         mutex_unlock(&ha->selflogin_lock);
1853
1854         vha->bidir_fcport.loop_id = vha->self_login_loop_id;
1855
1856         req_sg_cnt = dma_map_sg(&ha->pdev->dev,
1857                 bsg_job->request_payload.sg_list,
1858                 bsg_job->request_payload.sg_cnt,
1859                 DMA_TO_DEVICE);
1860
1861         if (!req_sg_cnt) {
1862                 rval = EXT_STATUS_NO_MEMORY;
1863                 goto done;
1864         }
1865
1866         rsp_sg_cnt = dma_map_sg(&ha->pdev->dev,
1867                 bsg_job->reply_payload.sg_list, bsg_job->reply_payload.sg_cnt,
1868                 DMA_FROM_DEVICE);
1869
1870         if (!rsp_sg_cnt) {
1871                 rval = EXT_STATUS_NO_MEMORY;
1872                 goto done_unmap_req_sg;
1873         }
1874
1875         if ((req_sg_cnt !=  bsg_job->request_payload.sg_cnt) ||
1876                 (rsp_sg_cnt != bsg_job->reply_payload.sg_cnt)) {
1877                 ql_dbg(ql_dbg_user, vha, 0x70a9,
1878                     "Dma mapping resulted in different sg counts "
1879                     "[request_sg_cnt: %x dma_request_sg_cnt: %x reply_sg_cnt: "
1880                     "%x dma_reply_sg_cnt: %x]\n",
1881                     bsg_job->request_payload.sg_cnt, req_sg_cnt,
1882                     bsg_job->reply_payload.sg_cnt, rsp_sg_cnt);
1883                 rval = EXT_STATUS_NO_MEMORY;
1884                 goto done_unmap_sg;
1885         }
1886
1887         if (req_data_len != rsp_data_len) {
1888                 rval = EXT_STATUS_BUSY;
1889                 ql_log(ql_log_warn, vha, 0x70aa,
1890                     "req_data_len != rsp_data_len\n");
1891                 goto done_unmap_sg;
1892         }
1893
1894         req_data_len = bsg_job->request_payload.payload_len;
1895         rsp_data_len = bsg_job->reply_payload.payload_len;
1896
1897
1898         /* Alloc SRB structure */
1899         sp = qla2x00_get_sp(vha, &(vha->bidir_fcport), GFP_KERNEL);
1900         if (!sp) {
1901                 ql_dbg(ql_dbg_user, vha, 0x70ac,
1902                     "Alloc SRB structure failed\n");
1903                 rval = EXT_STATUS_NO_MEMORY;
1904                 goto done_unmap_sg;
1905         }
1906
1907         /*Populate srb->ctx with bidir ctx*/
1908         sp->u.bsg_job = bsg_job;
1909         sp->free = qla2x00_bsg_sp_free;
1910         sp->type = SRB_BIDI_CMD;
1911         sp->done = qla2x00_bsg_job_done;
1912
1913         /* Add the read and write sg count */
1914         tot_dsds = rsp_sg_cnt + req_sg_cnt;
1915
1916         rval = qla2x00_start_bidir(sp, vha, tot_dsds);
1917         if (rval != EXT_STATUS_OK)
1918                 goto done_free_srb;
1919         /* the bsg request  will be completed in the interrupt handler */
1920         return rval;
1921
1922 done_free_srb:
1923         mempool_free(sp, ha->srb_mempool);
1924 done_unmap_sg:
1925         dma_unmap_sg(&ha->pdev->dev,
1926             bsg_job->reply_payload.sg_list,
1927             bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1928 done_unmap_req_sg:
1929         dma_unmap_sg(&ha->pdev->dev,
1930             bsg_job->request_payload.sg_list,
1931             bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1932 done:
1933
1934         /* Return an error vendor specific response
1935          * and complete the bsg request
1936          */
1937         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
1938         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1939         bsg_reply->reply_payload_rcv_len = 0;
1940         bsg_reply->result = (DID_OK) << 16;
1941         bsg_job_done(bsg_job, bsg_reply->result,
1942                        bsg_reply->reply_payload_rcv_len);
1943         /* Always return success, vendor rsp carries correct status */
1944         return 0;
1945 }
1946
1947 static int
1948 qlafx00_mgmt_cmd(struct bsg_job *bsg_job)
1949 {
1950         struct fc_bsg_request *bsg_request = bsg_job->request;
1951         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
1952         scsi_qla_host_t *vha = shost_priv(host);
1953         struct qla_hw_data *ha = vha->hw;
1954         int rval = (DRIVER_ERROR << 16);
1955         struct qla_mt_iocb_rqst_fx00 *piocb_rqst;
1956         srb_t *sp;
1957         int req_sg_cnt = 0, rsp_sg_cnt = 0;
1958         struct fc_port *fcport;
1959         char  *type = "FC_BSG_HST_FX_MGMT";
1960
1961         /* Copy the IOCB specific information */
1962         piocb_rqst = (struct qla_mt_iocb_rqst_fx00 *)
1963             &bsg_request->rqst_data.h_vendor.vendor_cmd[1];
1964
1965         /* Dump the vendor information */
1966         ql_dump_buffer(ql_dbg_user + ql_dbg_verbose , vha, 0x70cf,
1967             (uint8_t *)piocb_rqst, sizeof(struct qla_mt_iocb_rqst_fx00));
1968
1969         if (!vha->flags.online) {
1970                 ql_log(ql_log_warn, vha, 0x70d0,
1971                     "Host is not online.\n");
1972                 rval = -EIO;
1973                 goto done;
1974         }
1975
1976         if (piocb_rqst->flags & SRB_FXDISC_REQ_DMA_VALID) {
1977                 req_sg_cnt = dma_map_sg(&ha->pdev->dev,
1978                     bsg_job->request_payload.sg_list,
1979                     bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1980                 if (!req_sg_cnt) {
1981                         ql_log(ql_log_warn, vha, 0x70c7,
1982                             "dma_map_sg return %d for request\n", req_sg_cnt);
1983                         rval = -ENOMEM;
1984                         goto done;
1985                 }
1986         }
1987
1988         if (piocb_rqst->flags & SRB_FXDISC_RESP_DMA_VALID) {
1989                 rsp_sg_cnt = dma_map_sg(&ha->pdev->dev,
1990                     bsg_job->reply_payload.sg_list,
1991                     bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1992                 if (!rsp_sg_cnt) {
1993                         ql_log(ql_log_warn, vha, 0x70c8,
1994                             "dma_map_sg return %d for reply\n", rsp_sg_cnt);
1995                         rval = -ENOMEM;
1996                         goto done_unmap_req_sg;
1997                 }
1998         }
1999
2000         ql_dbg(ql_dbg_user, vha, 0x70c9,
2001             "request_sg_cnt: %x dma_request_sg_cnt: %x reply_sg_cnt:%x "
2002             "dma_reply_sg_cnt: %x\n", bsg_job->request_payload.sg_cnt,
2003             req_sg_cnt, bsg_job->reply_payload.sg_cnt, rsp_sg_cnt);
2004
2005         /* Allocate a dummy fcport structure, since functions preparing the
2006          * IOCB and mailbox command retrieves port specific information
2007          * from fcport structure. For Host based ELS commands there will be
2008          * no fcport structure allocated
2009          */
2010         fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
2011         if (!fcport) {
2012                 ql_log(ql_log_warn, vha, 0x70ca,
2013                     "Failed to allocate fcport.\n");
2014                 rval = -ENOMEM;
2015                 goto done_unmap_rsp_sg;
2016         }
2017
2018         /* Alloc SRB structure */
2019         sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
2020         if (!sp) {
2021                 ql_log(ql_log_warn, vha, 0x70cb,
2022                     "qla2x00_get_sp failed.\n");
2023                 rval = -ENOMEM;
2024                 goto done_free_fcport;
2025         }
2026
2027         /* Initialize all required  fields of fcport */
2028         fcport->vha = vha;
2029         fcport->loop_id = piocb_rqst->dataword;
2030
2031         sp->type = SRB_FXIOCB_BCMD;
2032         sp->name = "bsg_fx_mgmt";
2033         sp->iocbs = qla24xx_calc_ct_iocbs(req_sg_cnt + rsp_sg_cnt);
2034         sp->u.bsg_job = bsg_job;
2035         sp->free = qla2x00_bsg_sp_free;
2036         sp->done = qla2x00_bsg_job_done;
2037
2038         ql_dbg(ql_dbg_user, vha, 0x70cc,
2039             "bsg rqst type: %s fx_mgmt_type: %x id=%x\n",
2040             type, piocb_rqst->func_type, fcport->loop_id);
2041
2042         rval = qla2x00_start_sp(sp);
2043         if (rval != QLA_SUCCESS) {
2044                 ql_log(ql_log_warn, vha, 0x70cd,
2045                     "qla2x00_start_sp failed=%d.\n", rval);
2046                 mempool_free(sp, ha->srb_mempool);
2047                 rval = -EIO;
2048                 goto done_free_fcport;
2049         }
2050         return rval;
2051
2052 done_free_fcport:
2053         kfree(fcport);
2054
2055 done_unmap_rsp_sg:
2056         if (piocb_rqst->flags & SRB_FXDISC_RESP_DMA_VALID)
2057                 dma_unmap_sg(&ha->pdev->dev,
2058                     bsg_job->reply_payload.sg_list,
2059                     bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
2060 done_unmap_req_sg:
2061         if (piocb_rqst->flags & SRB_FXDISC_REQ_DMA_VALID)
2062                 dma_unmap_sg(&ha->pdev->dev,
2063                     bsg_job->request_payload.sg_list,
2064                     bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
2065
2066 done:
2067         return rval;
2068 }
2069
2070 static int
2071 qla26xx_serdes_op(struct bsg_job *bsg_job)
2072 {
2073         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
2074         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
2075         scsi_qla_host_t *vha = shost_priv(host);
2076         int rval = 0;
2077         struct qla_serdes_reg sr;
2078
2079         memset(&sr, 0, sizeof(sr));
2080
2081         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
2082             bsg_job->request_payload.sg_cnt, &sr, sizeof(sr));
2083
2084         switch (sr.cmd) {
2085         case INT_SC_SERDES_WRITE_REG:
2086                 rval = qla2x00_write_serdes_word(vha, sr.addr, sr.val);
2087                 bsg_reply->reply_payload_rcv_len = 0;
2088                 break;
2089         case INT_SC_SERDES_READ_REG:
2090                 rval = qla2x00_read_serdes_word(vha, sr.addr, &sr.val);
2091                 sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
2092                     bsg_job->reply_payload.sg_cnt, &sr, sizeof(sr));
2093                 bsg_reply->reply_payload_rcv_len = sizeof(sr);
2094                 break;
2095         default:
2096                 ql_dbg(ql_dbg_user, vha, 0x708c,
2097                     "Unknown serdes cmd %x.\n", sr.cmd);
2098                 rval = -EINVAL;
2099                 break;
2100         }
2101
2102         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
2103             rval ? EXT_STATUS_MAILBOX : 0;
2104
2105         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2106         bsg_reply->result = DID_OK << 16;
2107         bsg_job_done(bsg_job, bsg_reply->result,
2108                        bsg_reply->reply_payload_rcv_len);
2109         return 0;
2110 }
2111
2112 static int
2113 qla8044_serdes_op(struct bsg_job *bsg_job)
2114 {
2115         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
2116         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
2117         scsi_qla_host_t *vha = shost_priv(host);
2118         int rval = 0;
2119         struct qla_serdes_reg_ex sr;
2120
2121         memset(&sr, 0, sizeof(sr));
2122
2123         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
2124             bsg_job->request_payload.sg_cnt, &sr, sizeof(sr));
2125
2126         switch (sr.cmd) {
2127         case INT_SC_SERDES_WRITE_REG:
2128                 rval = qla8044_write_serdes_word(vha, sr.addr, sr.val);
2129                 bsg_reply->reply_payload_rcv_len = 0;
2130                 break;
2131         case INT_SC_SERDES_READ_REG:
2132                 rval = qla8044_read_serdes_word(vha, sr.addr, &sr.val);
2133                 sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
2134                     bsg_job->reply_payload.sg_cnt, &sr, sizeof(sr));
2135                 bsg_reply->reply_payload_rcv_len = sizeof(sr);
2136                 break;
2137         default:
2138                 ql_dbg(ql_dbg_user, vha, 0x70cf,
2139                     "Unknown serdes cmd %x.\n", sr.cmd);
2140                 rval = -EINVAL;
2141                 break;
2142         }
2143
2144         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
2145             rval ? EXT_STATUS_MAILBOX : 0;
2146
2147         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2148         bsg_reply->result = DID_OK << 16;
2149         bsg_job_done(bsg_job, bsg_reply->result,
2150                        bsg_reply->reply_payload_rcv_len);
2151         return 0;
2152 }
2153
2154 static int
2155 qla27xx_get_flash_upd_cap(struct bsg_job *bsg_job)
2156 {
2157         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
2158         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
2159         scsi_qla_host_t *vha = shost_priv(host);
2160         struct qla_hw_data *ha = vha->hw;
2161         struct qla_flash_update_caps cap;
2162
2163         if (!(IS_QLA27XX(ha)))
2164                 return -EPERM;
2165
2166         memset(&cap, 0, sizeof(cap));
2167         cap.capabilities = (uint64_t)ha->fw_attributes_ext[1] << 48 |
2168                            (uint64_t)ha->fw_attributes_ext[0] << 32 |
2169                            (uint64_t)ha->fw_attributes_h << 16 |
2170                            (uint64_t)ha->fw_attributes;
2171
2172         sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
2173             bsg_job->reply_payload.sg_cnt, &cap, sizeof(cap));
2174         bsg_reply->reply_payload_rcv_len = sizeof(cap);
2175
2176         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
2177             EXT_STATUS_OK;
2178
2179         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2180         bsg_reply->result = DID_OK << 16;
2181         bsg_job_done(bsg_job, bsg_reply->result,
2182                        bsg_reply->reply_payload_rcv_len);
2183         return 0;
2184 }
2185
2186 static int
2187 qla27xx_set_flash_upd_cap(struct bsg_job *bsg_job)
2188 {
2189         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
2190         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
2191         scsi_qla_host_t *vha = shost_priv(host);
2192         struct qla_hw_data *ha = vha->hw;
2193         uint64_t online_fw_attr = 0;
2194         struct qla_flash_update_caps cap;
2195
2196         if (!(IS_QLA27XX(ha)))
2197                 return -EPERM;
2198
2199         memset(&cap, 0, sizeof(cap));
2200         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
2201             bsg_job->request_payload.sg_cnt, &cap, sizeof(cap));
2202
2203         online_fw_attr = (uint64_t)ha->fw_attributes_ext[1] << 48 |
2204                          (uint64_t)ha->fw_attributes_ext[0] << 32 |
2205                          (uint64_t)ha->fw_attributes_h << 16 |
2206                          (uint64_t)ha->fw_attributes;
2207
2208         if (online_fw_attr != cap.capabilities) {
2209                 bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
2210                     EXT_STATUS_INVALID_PARAM;
2211                 return -EINVAL;
2212         }
2213
2214         if (cap.outage_duration < MAX_LOOP_TIMEOUT)  {
2215                 bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
2216                     EXT_STATUS_INVALID_PARAM;
2217                 return -EINVAL;
2218         }
2219
2220         bsg_reply->reply_payload_rcv_len = 0;
2221
2222         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
2223             EXT_STATUS_OK;
2224
2225         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2226         bsg_reply->result = DID_OK << 16;
2227         bsg_job_done(bsg_job, bsg_reply->result,
2228                        bsg_reply->reply_payload_rcv_len);
2229         return 0;
2230 }
2231
2232 static int
2233 qla27xx_get_bbcr_data(struct bsg_job *bsg_job)
2234 {
2235         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
2236         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
2237         scsi_qla_host_t *vha = shost_priv(host);
2238         struct qla_hw_data *ha = vha->hw;
2239         struct qla_bbcr_data bbcr;
2240         uint16_t loop_id, topo, sw_cap;
2241         uint8_t domain, area, al_pa, state;
2242         int rval;
2243
2244         if (!(IS_QLA27XX(ha)))
2245                 return -EPERM;
2246
2247         memset(&bbcr, 0, sizeof(bbcr));
2248
2249         if (vha->flags.bbcr_enable)
2250                 bbcr.status = QLA_BBCR_STATUS_ENABLED;
2251         else
2252                 bbcr.status = QLA_BBCR_STATUS_DISABLED;
2253
2254         if (bbcr.status == QLA_BBCR_STATUS_ENABLED) {
2255                 rval = qla2x00_get_adapter_id(vha, &loop_id, &al_pa,
2256                         &area, &domain, &topo, &sw_cap);
2257                 if (rval != QLA_SUCCESS) {
2258                         bbcr.status = QLA_BBCR_STATUS_UNKNOWN;
2259                         bbcr.state = QLA_BBCR_STATE_OFFLINE;
2260                         bbcr.mbx1 = loop_id;
2261                         goto done;
2262                 }
2263
2264                 state = (vha->bbcr >> 12) & 0x1;
2265
2266                 if (state) {
2267                         bbcr.state = QLA_BBCR_STATE_OFFLINE;
2268                         bbcr.offline_reason_code = QLA_BBCR_REASON_LOGIN_REJECT;
2269                 } else {
2270                         bbcr.state = QLA_BBCR_STATE_ONLINE;
2271                         bbcr.negotiated_bbscn = (vha->bbcr >> 8) & 0xf;
2272                 }
2273
2274                 bbcr.configured_bbscn = vha->bbcr & 0xf;
2275         }
2276
2277 done:
2278         sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
2279                 bsg_job->reply_payload.sg_cnt, &bbcr, sizeof(bbcr));
2280         bsg_reply->reply_payload_rcv_len = sizeof(bbcr);
2281
2282         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = EXT_STATUS_OK;
2283
2284         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2285         bsg_reply->result = DID_OK << 16;
2286         bsg_job_done(bsg_job, bsg_reply->result,
2287                        bsg_reply->reply_payload_rcv_len);
2288         return 0;
2289 }
2290
2291 static int
2292 qla2x00_get_priv_stats(struct bsg_job *bsg_job)
2293 {
2294         struct fc_bsg_request *bsg_request = bsg_job->request;
2295         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
2296         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
2297         scsi_qla_host_t *vha = shost_priv(host);
2298         struct qla_hw_data *ha = vha->hw;
2299         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
2300         struct link_statistics *stats = NULL;
2301         dma_addr_t stats_dma;
2302         int rval;
2303         uint32_t *cmd = bsg_request->rqst_data.h_vendor.vendor_cmd;
2304         uint options = cmd[0] == QL_VND_GET_PRIV_STATS_EX ? cmd[1] : 0;
2305
2306         if (test_bit(UNLOADING, &vha->dpc_flags))
2307                 return -ENODEV;
2308
2309         if (unlikely(pci_channel_offline(ha->pdev)))
2310                 return -ENODEV;
2311
2312         if (qla2x00_reset_active(vha))
2313                 return -EBUSY;
2314
2315         if (!IS_FWI2_CAPABLE(ha))
2316                 return -EPERM;
2317
2318         stats = dma_alloc_coherent(&ha->pdev->dev,
2319                 sizeof(*stats), &stats_dma, GFP_KERNEL);
2320         if (!stats) {
2321                 ql_log(ql_log_warn, vha, 0x70e2,
2322                     "Failed to allocate memory for stats.\n");
2323                 return -ENOMEM;
2324         }
2325
2326         memset(stats, 0, sizeof(*stats));
2327
2328         rval = qla24xx_get_isp_stats(base_vha, stats, stats_dma, options);
2329
2330         if (rval == QLA_SUCCESS) {
2331                 ql_dump_buffer(ql_dbg_user + ql_dbg_verbose, vha, 0x70e3,
2332                     (uint8_t *)stats, sizeof(*stats));
2333                 sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
2334                         bsg_job->reply_payload.sg_cnt, stats, sizeof(*stats));
2335         }
2336
2337         bsg_reply->reply_payload_rcv_len = sizeof(*stats);
2338         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
2339             rval ? EXT_STATUS_MAILBOX : EXT_STATUS_OK;
2340
2341         bsg_job->reply_len = sizeof(*bsg_reply);
2342         bsg_reply->result = DID_OK << 16;
2343         bsg_job_done(bsg_job, bsg_reply->result,
2344                        bsg_reply->reply_payload_rcv_len);
2345
2346         dma_free_coherent(&ha->pdev->dev, sizeof(*stats),
2347                 stats, stats_dma);
2348
2349         return 0;
2350 }
2351
2352 static int
2353 qla2x00_do_dport_diagnostics(struct bsg_job *bsg_job)
2354 {
2355         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
2356         struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
2357         scsi_qla_host_t *vha = shost_priv(host);
2358         int rval;
2359         struct qla_dport_diag *dd;
2360
2361         if (!IS_QLA83XX(vha->hw) && !IS_QLA27XX(vha->hw))
2362                 return -EPERM;
2363
2364         dd = kmalloc(sizeof(*dd), GFP_KERNEL);
2365         if (!dd) {
2366                 ql_log(ql_log_warn, vha, 0x70db,
2367                     "Failed to allocate memory for dport.\n");
2368                 return -ENOMEM;
2369         }
2370
2371         sg_copy_to_buffer(bsg_job->request_payload.sg_list,
2372             bsg_job->request_payload.sg_cnt, dd, sizeof(*dd));
2373
2374         rval = qla26xx_dport_diagnostics(
2375             vha, dd->buf, sizeof(dd->buf), dd->options);
2376         if (rval == QLA_SUCCESS) {
2377                 sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
2378                     bsg_job->reply_payload.sg_cnt, dd, sizeof(*dd));
2379         }
2380
2381         bsg_reply->reply_payload_rcv_len = sizeof(*dd);
2382         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
2383             rval ? EXT_STATUS_MAILBOX : EXT_STATUS_OK;
2384
2385         bsg_job->reply_len = sizeof(*bsg_reply);
2386         bsg_reply->result = DID_OK << 16;
2387         bsg_job_done(bsg_job, bsg_reply->result,
2388                        bsg_reply->reply_payload_rcv_len);
2389
2390         kfree(dd);
2391
2392         return 0;
2393 }
2394
2395 static int
2396 qla2x00_process_vendor_specific(struct bsg_job *bsg_job)
2397 {
2398         struct fc_bsg_request *bsg_request = bsg_job->request;
2399
2400         switch (bsg_request->rqst_data.h_vendor.vendor_cmd[0]) {
2401         case QL_VND_LOOPBACK:
2402                 return qla2x00_process_loopback(bsg_job);
2403
2404         case QL_VND_A84_RESET:
2405                 return qla84xx_reset(bsg_job);
2406
2407         case QL_VND_A84_UPDATE_FW:
2408                 return qla84xx_updatefw(bsg_job);
2409
2410         case QL_VND_A84_MGMT_CMD:
2411                 return qla84xx_mgmt_cmd(bsg_job);
2412
2413         case QL_VND_IIDMA:
2414                 return qla24xx_iidma(bsg_job);
2415
2416         case QL_VND_FCP_PRIO_CFG_CMD:
2417                 return qla24xx_proc_fcp_prio_cfg_cmd(bsg_job);
2418
2419         case QL_VND_READ_FLASH:
2420                 return qla2x00_read_optrom(bsg_job);
2421
2422         case QL_VND_UPDATE_FLASH:
2423                 return qla2x00_update_optrom(bsg_job);
2424
2425         case QL_VND_SET_FRU_VERSION:
2426                 return qla2x00_update_fru_versions(bsg_job);
2427
2428         case QL_VND_READ_FRU_STATUS:
2429                 return qla2x00_read_fru_status(bsg_job);
2430
2431         case QL_VND_WRITE_FRU_STATUS:
2432                 return qla2x00_write_fru_status(bsg_job);
2433
2434         case QL_VND_WRITE_I2C:
2435                 return qla2x00_write_i2c(bsg_job);
2436
2437         case QL_VND_READ_I2C:
2438                 return qla2x00_read_i2c(bsg_job);
2439
2440         case QL_VND_DIAG_IO_CMD:
2441                 return qla24xx_process_bidir_cmd(bsg_job);
2442
2443         case QL_VND_FX00_MGMT_CMD:
2444                 return qlafx00_mgmt_cmd(bsg_job);
2445
2446         case QL_VND_SERDES_OP:
2447                 return qla26xx_serdes_op(bsg_job);
2448
2449         case QL_VND_SERDES_OP_EX:
2450                 return qla8044_serdes_op(bsg_job);
2451
2452         case QL_VND_GET_FLASH_UPDATE_CAPS:
2453                 return qla27xx_get_flash_upd_cap(bsg_job);
2454
2455         case QL_VND_SET_FLASH_UPDATE_CAPS:
2456                 return qla27xx_set_flash_upd_cap(bsg_job);
2457
2458         case QL_VND_GET_BBCR_DATA:
2459                 return qla27xx_get_bbcr_data(bsg_job);
2460
2461         case QL_VND_GET_PRIV_STATS:
2462         case QL_VND_GET_PRIV_STATS_EX:
2463                 return qla2x00_get_priv_stats(bsg_job);
2464
2465         case QL_VND_DPORT_DIAGNOSTICS:
2466                 return qla2x00_do_dport_diagnostics(bsg_job);
2467
2468         default:
2469                 return -ENOSYS;
2470         }
2471 }
2472
2473 int
2474 qla24xx_bsg_request(struct bsg_job *bsg_job)
2475 {
2476         struct fc_bsg_request *bsg_request = bsg_job->request;
2477         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
2478         int ret = -EINVAL;
2479         struct fc_rport *rport;
2480         struct Scsi_Host *host;
2481         scsi_qla_host_t *vha;
2482
2483         /* In case no data transferred. */
2484         bsg_reply->reply_payload_rcv_len = 0;
2485
2486         if (bsg_request->msgcode == FC_BSG_RPT_ELS) {
2487                 rport = fc_bsg_to_rport(bsg_job);
2488                 host = rport_to_shost(rport);
2489                 vha = shost_priv(host);
2490         } else {
2491                 host = fc_bsg_to_shost(bsg_job);
2492                 vha = shost_priv(host);
2493         }
2494
2495         if (qla2x00_reset_active(vha)) {
2496                 ql_dbg(ql_dbg_user, vha, 0x709f,
2497                     "BSG: ISP abort active/needed -- cmd=%d.\n",
2498                     bsg_request->msgcode);
2499                 return -EBUSY;
2500         }
2501
2502         ql_dbg(ql_dbg_user, vha, 0x7000,
2503             "Entered %s msgcode=0x%x.\n", __func__, bsg_request->msgcode);
2504
2505         switch (bsg_request->msgcode) {
2506         case FC_BSG_RPT_ELS:
2507         case FC_BSG_HST_ELS_NOLOGIN:
2508                 ret = qla2x00_process_els(bsg_job);
2509                 break;
2510         case FC_BSG_HST_CT:
2511                 ret = qla2x00_process_ct(bsg_job);
2512                 break;
2513         case FC_BSG_HST_VENDOR:
2514                 ret = qla2x00_process_vendor_specific(bsg_job);
2515                 break;
2516         case FC_BSG_HST_ADD_RPORT:
2517         case FC_BSG_HST_DEL_RPORT:
2518         case FC_BSG_RPT_CT:
2519         default:
2520                 ql_log(ql_log_warn, vha, 0x705a, "Unsupported BSG request.\n");
2521                 break;
2522         }
2523         return ret;
2524 }
2525
2526 int
2527 qla24xx_bsg_timeout(struct bsg_job *bsg_job)
2528 {
2529         struct fc_bsg_reply *bsg_reply = bsg_job->reply;
2530         scsi_qla_host_t *vha = shost_priv(fc_bsg_to_shost(bsg_job));
2531         struct qla_hw_data *ha = vha->hw;
2532         srb_t *sp;
2533         int cnt, que;
2534         unsigned long flags;
2535         struct req_que *req;
2536
2537         /* find the bsg job from the active list of commands */
2538         spin_lock_irqsave(&ha->hardware_lock, flags);
2539         for (que = 0; que < ha->max_req_queues; que++) {
2540                 req = ha->req_q_map[que];
2541                 if (!req)
2542                         continue;
2543
2544                 for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
2545                         sp = req->outstanding_cmds[cnt];
2546                         if (sp) {
2547                                 if (((sp->type == SRB_CT_CMD) ||
2548                                         (sp->type == SRB_ELS_CMD_HST) ||
2549                                         (sp->type == SRB_FXIOCB_BCMD))
2550                                         && (sp->u.bsg_job == bsg_job)) {
2551                                         req->outstanding_cmds[cnt] = NULL;
2552                                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2553                                         if (ha->isp_ops->abort_command(sp)) {
2554                                                 ql_log(ql_log_warn, vha, 0x7089,
2555                                                     "mbx abort_command "
2556                                                     "failed.\n");
2557                                                 scsi_req(bsg_job->req)->result =
2558                                                 bsg_reply->result = -EIO;
2559                                         } else {
2560                                                 ql_dbg(ql_dbg_user, vha, 0x708a,
2561                                                     "mbx abort_command "
2562                                                     "success.\n");
2563                                                 scsi_req(bsg_job->req)->result =
2564                                                 bsg_reply->result = 0;
2565                                         }
2566                                         spin_lock_irqsave(&ha->hardware_lock, flags);
2567                                         goto done;
2568                                 }
2569                         }
2570                 }
2571         }
2572         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2573         ql_log(ql_log_info, vha, 0x708b, "SRB not found to abort.\n");
2574         scsi_req(bsg_job->req)->result = bsg_reply->result = -ENXIO;
2575         return 0;
2576
2577 done:
2578         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2579         sp->free(sp);
2580         return 0;
2581 }