1 /* 2 * QLogic Fibre Channel HBA Driver 3 * Copyright (c) 2003-2017 QLogic Corporation 4 * 5 * See LICENSE.qla2xxx for copyright and licensing details. 6 */ 7 #include "qla_nvme.h" 8 #include <linux/scatterlist.h> 9 #include <linux/delay.h> 10 #include <linux/nvme.h> 11 #include <linux/nvme-fc.h> 12 13 static struct nvme_fc_port_template qla_nvme_fc_transport; 14 15 static void qla_nvme_unregister_remote_port(struct work_struct *); 16 17 int qla_nvme_register_remote(struct scsi_qla_host *vha, struct fc_port *fcport) 18 { 19 struct qla_nvme_rport *rport; 20 struct nvme_fc_port_info req; 21 int ret; 22 23 if (!IS_ENABLED(CONFIG_NVME_FC)) 24 return 0; 25 26 if (!vha->flags.nvme_enabled) { 27 ql_log(ql_log_info, vha, 0x2100, 28 "%s: Not registering target since Host NVME is not enabled\n", 29 __func__); 30 return 0; 31 } 32 33 if (!vha->nvme_local_port && qla_nvme_register_hba(vha)) 34 return 0; 35 36 if (!(fcport->nvme_prli_service_param & 37 (NVME_PRLI_SP_TARGET | NVME_PRLI_SP_DISCOVERY)) || 38 (fcport->nvme_flag & NVME_FLAG_REGISTERED)) 39 return 0; 40 41 INIT_WORK(&fcport->nvme_del_work, qla_nvme_unregister_remote_port); 42 fcport->nvme_flag &= ~NVME_FLAG_RESETTING; 43 44 memset(&req, 0, sizeof(struct nvme_fc_port_info)); 45 req.port_name = wwn_to_u64(fcport->port_name); 46 req.node_name = wwn_to_u64(fcport->node_name); 47 req.port_role = 0; 48 req.dev_loss_tmo = NVME_FC_DEV_LOSS_TMO; 49 50 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_INITIATOR) 51 req.port_role = FC_PORT_ROLE_NVME_INITIATOR; 52 53 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_TARGET) 54 req.port_role |= FC_PORT_ROLE_NVME_TARGET; 55 56 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_DISCOVERY) 57 req.port_role |= FC_PORT_ROLE_NVME_DISCOVERY; 58 59 req.port_id = fcport->d_id.b24; 60 61 ql_log(ql_log_info, vha, 0x2102, 62 "%s: traddr=nn-0x%016llx:pn-0x%016llx PortID:%06x\n", 63 __func__, req.node_name, req.port_name, 64 req.port_id); 65 66 ret = nvme_fc_register_remoteport(vha->nvme_local_port, &req, 67 &fcport->nvme_remote_port); 68 if (ret) { 69 ql_log(ql_log_warn, vha, 0x212e, 70 "Failed to register remote port. Transport returned %d\n", 71 ret); 72 return ret; 73 } 74 75 rport = fcport->nvme_remote_port->private; 76 rport->fcport = fcport; 77 list_add_tail(&rport->list, &vha->nvme_rport_list); 78 79 fcport->nvme_flag |= NVME_FLAG_REGISTERED; 80 return 0; 81 } 82 83 /* Allocate a queue for NVMe traffic */ 84 static int qla_nvme_alloc_queue(struct nvme_fc_local_port *lport, 85 unsigned int qidx, u16 qsize, void **handle) 86 { 87 struct scsi_qla_host *vha; 88 struct qla_hw_data *ha; 89 struct qla_qpair *qpair; 90 91 if (!qidx) 92 qidx++; 93 94 vha = (struct scsi_qla_host *)lport->private; 95 ha = vha->hw; 96 97 ql_log(ql_log_info, vha, 0x2104, 98 "%s: handle %p, idx =%d, qsize %d\n", 99 __func__, handle, qidx, qsize); 100 101 if (qidx > qla_nvme_fc_transport.max_hw_queues) { 102 ql_log(ql_log_warn, vha, 0x212f, 103 "%s: Illegal qidx=%d. Max=%d\n", 104 __func__, qidx, qla_nvme_fc_transport.max_hw_queues); 105 return -EINVAL; 106 } 107 108 if (ha->queue_pair_map[qidx]) { 109 *handle = ha->queue_pair_map[qidx]; 110 ql_log(ql_log_info, vha, 0x2121, 111 "Returning existing qpair of %p for idx=%x\n", 112 *handle, qidx); 113 return 0; 114 } 115 116 qpair = qla2xxx_create_qpair(vha, 5, vha->vp_idx, true); 117 if (qpair == NULL) { 118 ql_log(ql_log_warn, vha, 0x2122, 119 "Failed to allocate qpair\n"); 120 return -EINVAL; 121 } 122 *handle = qpair; 123 124 return 0; 125 } 126 127 static void qla_nvme_sp_ls_done(void *ptr, int res) 128 { 129 srb_t *sp = ptr; 130 struct srb_iocb *nvme; 131 struct nvmefc_ls_req *fd; 132 struct nvme_private *priv; 133 134 if (atomic_read(&sp->ref_count) == 0) { 135 ql_log(ql_log_warn, sp->fcport->vha, 0x2123, 136 "SP reference-count to ZERO on LS_done -- sp=%p.\n", sp); 137 return; 138 } 139 140 if (!atomic_dec_and_test(&sp->ref_count)) 141 return; 142 143 if (res) 144 res = -EINVAL; 145 146 nvme = &sp->u.iocb_cmd; 147 fd = nvme->u.nvme.desc; 148 priv = fd->private; 149 priv->comp_status = res; 150 schedule_work(&priv->ls_work); 151 /* work schedule doesn't need the sp */ 152 qla2x00_rel_sp(sp); 153 } 154 155 static void qla_nvme_sp_done(void *ptr, int res) 156 { 157 srb_t *sp = ptr; 158 struct srb_iocb *nvme; 159 struct nvmefc_fcp_req *fd; 160 161 nvme = &sp->u.iocb_cmd; 162 fd = nvme->u.nvme.desc; 163 164 if (!atomic_dec_and_test(&sp->ref_count)) 165 return; 166 167 if (res == QLA_SUCCESS) 168 fd->status = 0; 169 else 170 fd->status = NVME_SC_INTERNAL; 171 172 fd->rcv_rsplen = nvme->u.nvme.rsp_pyld_len; 173 fd->done(fd); 174 qla2xxx_rel_qpair_sp(sp->qpair, sp); 175 176 return; 177 } 178 179 static void qla_nvme_abort_work(struct work_struct *work) 180 { 181 struct nvme_private *priv = 182 container_of(work, struct nvme_private, abort_work); 183 srb_t *sp = priv->sp; 184 fc_port_t *fcport = sp->fcport; 185 struct qla_hw_data *ha = fcport->vha->hw; 186 int rval; 187 188 if (fcport) 189 ql_dbg(ql_dbg_io, fcport->vha, 0xffff, 190 "%s called for sp=%p, hndl=%x on fcport=%p deleted=%d\n", 191 __func__, sp, sp->handle, fcport, fcport->deleted); 192 193 if (!ha->flags.fw_started && (fcport && fcport->deleted)) 194 return; 195 196 rval = ha->isp_ops->abort_command(sp); 197 198 ql_dbg(ql_dbg_io, fcport->vha, 0x212b, 199 "%s: %s command for sp=%p, handle=%x on fcport=%p rval=%x\n", 200 __func__, (rval != QLA_SUCCESS) ? "Failed to abort" : "Aborted", 201 sp, sp->handle, fcport, rval); 202 } 203 204 static void qla_nvme_ls_abort(struct nvme_fc_local_port *lport, 205 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd) 206 { 207 struct nvme_private *priv = fd->private; 208 209 INIT_WORK(&priv->abort_work, qla_nvme_abort_work); 210 schedule_work(&priv->abort_work); 211 } 212 213 static void qla_nvme_ls_complete(struct work_struct *work) 214 { 215 struct nvme_private *priv = 216 container_of(work, struct nvme_private, ls_work); 217 struct nvmefc_ls_req *fd = priv->fd; 218 219 fd->done(fd, priv->comp_status); 220 } 221 222 static int qla_nvme_ls_req(struct nvme_fc_local_port *lport, 223 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd) 224 { 225 struct qla_nvme_rport *qla_rport = rport->private; 226 fc_port_t *fcport = qla_rport->fcport; 227 struct srb_iocb *nvme; 228 struct nvme_private *priv = fd->private; 229 struct scsi_qla_host *vha; 230 int rval = QLA_FUNCTION_FAILED; 231 struct qla_hw_data *ha; 232 srb_t *sp; 233 234 vha = fcport->vha; 235 ha = vha->hw; 236 /* Alloc SRB structure */ 237 sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC); 238 if (!sp) 239 return rval; 240 241 sp->type = SRB_NVME_LS; 242 sp->name = "nvme_ls"; 243 sp->done = qla_nvme_sp_ls_done; 244 atomic_set(&sp->ref_count, 1); 245 nvme = &sp->u.iocb_cmd; 246 priv->sp = sp; 247 priv->fd = fd; 248 INIT_WORK(&priv->ls_work, qla_nvme_ls_complete); 249 nvme->u.nvme.desc = fd; 250 nvme->u.nvme.dir = 0; 251 nvme->u.nvme.dl = 0; 252 nvme->u.nvme.cmd_len = fd->rqstlen; 253 nvme->u.nvme.rsp_len = fd->rsplen; 254 nvme->u.nvme.rsp_dma = fd->rspdma; 255 nvme->u.nvme.timeout_sec = fd->timeout; 256 nvme->u.nvme.cmd_dma = dma_map_single(&ha->pdev->dev, fd->rqstaddr, 257 fd->rqstlen, DMA_TO_DEVICE); 258 dma_sync_single_for_device(&ha->pdev->dev, nvme->u.nvme.cmd_dma, 259 fd->rqstlen, DMA_TO_DEVICE); 260 261 rval = qla2x00_start_sp(sp); 262 if (rval != QLA_SUCCESS) { 263 ql_log(ql_log_warn, vha, 0x700e, 264 "qla2x00_start_sp failed = %d\n", rval); 265 atomic_dec(&sp->ref_count); 266 wake_up(&sp->nvme_ls_waitq); 267 return rval; 268 } 269 270 return rval; 271 } 272 273 static void qla_nvme_fcp_abort(struct nvme_fc_local_port *lport, 274 struct nvme_fc_remote_port *rport, void *hw_queue_handle, 275 struct nvmefc_fcp_req *fd) 276 { 277 struct nvme_private *priv = fd->private; 278 279 INIT_WORK(&priv->abort_work, qla_nvme_abort_work); 280 schedule_work(&priv->abort_work); 281 } 282 283 static inline int qla2x00_start_nvme_mq(srb_t *sp) 284 { 285 unsigned long flags; 286 uint32_t *clr_ptr; 287 uint32_t index; 288 uint32_t handle; 289 struct cmd_nvme *cmd_pkt; 290 uint16_t cnt, i; 291 uint16_t req_cnt; 292 uint16_t tot_dsds; 293 uint16_t avail_dsds; 294 uint32_t *cur_dsd; 295 struct req_que *req = NULL; 296 struct scsi_qla_host *vha = sp->fcport->vha; 297 struct qla_hw_data *ha = vha->hw; 298 struct qla_qpair *qpair = sp->qpair; 299 struct srb_iocb *nvme = &sp->u.iocb_cmd; 300 struct scatterlist *sgl, *sg; 301 struct nvmefc_fcp_req *fd = nvme->u.nvme.desc; 302 uint32_t rval = QLA_SUCCESS; 303 304 /* Setup qpair pointers */ 305 req = qpair->req; 306 tot_dsds = fd->sg_cnt; 307 308 /* Acquire qpair specific lock */ 309 spin_lock_irqsave(&qpair->qp_lock, flags); 310 311 /* Check for room in outstanding command list. */ 312 handle = req->current_outstanding_cmd; 313 for (index = 1; index < req->num_outstanding_cmds; index++) { 314 handle++; 315 if (handle == req->num_outstanding_cmds) 316 handle = 1; 317 if (!req->outstanding_cmds[handle]) 318 break; 319 } 320 321 if (index == req->num_outstanding_cmds) { 322 rval = -EBUSY; 323 goto queuing_error; 324 } 325 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 326 if (req->cnt < (req_cnt + 2)) { 327 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr : 328 RD_REG_DWORD_RELAXED(req->req_q_out); 329 330 if (req->ring_index < cnt) 331 req->cnt = cnt - req->ring_index; 332 else 333 req->cnt = req->length - (req->ring_index - cnt); 334 335 if (req->cnt < (req_cnt + 2)){ 336 rval = -EBUSY; 337 goto queuing_error; 338 } 339 } 340 341 if (unlikely(!fd->sqid)) { 342 struct nvme_fc_cmd_iu *cmd = fd->cmdaddr; 343 if (cmd->sqe.common.opcode == nvme_admin_async_event) { 344 nvme->u.nvme.aen_op = 1; 345 atomic_inc(&ha->nvme_active_aen_cnt); 346 } 347 } 348 349 /* Build command packet. */ 350 req->current_outstanding_cmd = handle; 351 req->outstanding_cmds[handle] = sp; 352 sp->handle = handle; 353 req->cnt -= req_cnt; 354 355 cmd_pkt = (struct cmd_nvme *)req->ring_ptr; 356 cmd_pkt->handle = MAKE_HANDLE(req->id, handle); 357 358 /* Zero out remaining portion of packet. */ 359 clr_ptr = (uint32_t *)cmd_pkt + 2; 360 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 361 362 cmd_pkt->entry_status = 0; 363 364 /* Update entry type to indicate Command NVME IOCB */ 365 cmd_pkt->entry_type = COMMAND_NVME; 366 367 /* No data transfer how do we check buffer len == 0?? */ 368 if (fd->io_dir == NVMEFC_FCP_READ) { 369 cmd_pkt->control_flags = CF_READ_DATA; 370 vha->qla_stats.input_bytes += fd->payload_length; 371 vha->qla_stats.input_requests++; 372 } else if (fd->io_dir == NVMEFC_FCP_WRITE) { 373 cmd_pkt->control_flags = CF_WRITE_DATA; 374 if ((vha->flags.nvme_first_burst) && 375 (sp->fcport->nvme_prli_service_param & 376 NVME_PRLI_SP_FIRST_BURST)) { 377 if ((fd->payload_length <= 378 sp->fcport->nvme_first_burst_size) || 379 (sp->fcport->nvme_first_burst_size == 0)) 380 cmd_pkt->control_flags |= 381 CF_NVME_FIRST_BURST_ENABLE; 382 } 383 vha->qla_stats.output_bytes += fd->payload_length; 384 vha->qla_stats.output_requests++; 385 } else if (fd->io_dir == 0) { 386 cmd_pkt->control_flags = 0; 387 } 388 389 /* Set NPORT-ID */ 390 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 391 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 392 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 393 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 394 cmd_pkt->vp_index = sp->fcport->vha->vp_idx; 395 396 /* NVME RSP IU */ 397 cmd_pkt->nvme_rsp_dsd_len = cpu_to_le16(fd->rsplen); 398 cmd_pkt->nvme_rsp_dseg_address[0] = cpu_to_le32(LSD(fd->rspdma)); 399 cmd_pkt->nvme_rsp_dseg_address[1] = cpu_to_le32(MSD(fd->rspdma)); 400 401 /* NVME CNMD IU */ 402 cmd_pkt->nvme_cmnd_dseg_len = cpu_to_le16(fd->cmdlen); 403 cmd_pkt->nvme_cmnd_dseg_address[0] = cpu_to_le32(LSD(fd->cmddma)); 404 cmd_pkt->nvme_cmnd_dseg_address[1] = cpu_to_le32(MSD(fd->cmddma)); 405 406 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 407 cmd_pkt->byte_count = cpu_to_le32(fd->payload_length); 408 409 /* One DSD is available in the Command Type NVME IOCB */ 410 avail_dsds = 1; 411 cur_dsd = (uint32_t *)&cmd_pkt->nvme_data_dseg_address[0]; 412 sgl = fd->first_sgl; 413 414 /* Load data segments */ 415 for_each_sg(sgl, sg, tot_dsds, i) { 416 dma_addr_t sle_dma; 417 cont_a64_entry_t *cont_pkt; 418 419 /* Allocate additional continuation packets? */ 420 if (avail_dsds == 0) { 421 /* 422 * Five DSDs are available in the Continuation 423 * Type 1 IOCB. 424 */ 425 426 /* Adjust ring index */ 427 req->ring_index++; 428 if (req->ring_index == req->length) { 429 req->ring_index = 0; 430 req->ring_ptr = req->ring; 431 } else { 432 req->ring_ptr++; 433 } 434 cont_pkt = (cont_a64_entry_t *)req->ring_ptr; 435 *((uint32_t *)(&cont_pkt->entry_type)) = 436 cpu_to_le32(CONTINUE_A64_TYPE); 437 438 cur_dsd = (uint32_t *)cont_pkt->dseg_0_address; 439 avail_dsds = 5; 440 } 441 442 sle_dma = sg_dma_address(sg); 443 *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); 444 *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); 445 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); 446 avail_dsds--; 447 } 448 449 /* Set total entry count. */ 450 cmd_pkt->entry_count = (uint8_t)req_cnt; 451 wmb(); 452 453 /* Adjust ring index. */ 454 req->ring_index++; 455 if (req->ring_index == req->length) { 456 req->ring_index = 0; 457 req->ring_ptr = req->ring; 458 } else { 459 req->ring_ptr++; 460 } 461 462 /* Set chip new ring index. */ 463 WRT_REG_DWORD(req->req_q_in, req->ring_index); 464 465 queuing_error: 466 spin_unlock_irqrestore(&qpair->qp_lock, flags); 467 return rval; 468 } 469 470 /* Post a command */ 471 static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport, 472 struct nvme_fc_remote_port *rport, void *hw_queue_handle, 473 struct nvmefc_fcp_req *fd) 474 { 475 fc_port_t *fcport; 476 struct srb_iocb *nvme; 477 struct scsi_qla_host *vha; 478 int rval = -ENODEV; 479 srb_t *sp; 480 struct qla_qpair *qpair = hw_queue_handle; 481 struct nvme_private *priv = fd->private; 482 struct qla_nvme_rport *qla_rport = rport->private; 483 484 fcport = qla_rport->fcport; 485 486 vha = fcport->vha; 487 488 if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) 489 return rval; 490 491 /* 492 * If we know the dev is going away while the transport is still sending 493 * IO's return busy back to stall the IO Q. This happens when the 494 * link goes away and fw hasn't notified us yet, but IO's are being 495 * returned. If the dev comes back quickly we won't exhaust the IO 496 * retry count at the core. 497 */ 498 if (fcport->nvme_flag & NVME_FLAG_RESETTING) 499 return -EBUSY; 500 501 /* Alloc SRB structure */ 502 sp = qla2xxx_get_qpair_sp(vha, qpair, fcport, GFP_ATOMIC); 503 if (!sp) 504 return -EBUSY; 505 506 atomic_set(&sp->ref_count, 1); 507 init_waitqueue_head(&sp->nvme_ls_waitq); 508 priv->sp = sp; 509 sp->type = SRB_NVME_CMD; 510 sp->name = "nvme_cmd"; 511 sp->done = qla_nvme_sp_done; 512 sp->qpair = qpair; 513 sp->vha = vha; 514 nvme = &sp->u.iocb_cmd; 515 nvme->u.nvme.desc = fd; 516 517 rval = qla2x00_start_nvme_mq(sp); 518 if (rval != QLA_SUCCESS) { 519 ql_log(ql_log_warn, vha, 0x212d, 520 "qla2x00_start_nvme_mq failed = %d\n", rval); 521 atomic_dec(&sp->ref_count); 522 wake_up(&sp->nvme_ls_waitq); 523 } 524 525 return rval; 526 } 527 528 static void qla_nvme_localport_delete(struct nvme_fc_local_port *lport) 529 { 530 struct scsi_qla_host *vha = lport->private; 531 532 ql_log(ql_log_info, vha, 0x210f, 533 "localport delete of %p completed.\n", vha->nvme_local_port); 534 vha->nvme_local_port = NULL; 535 complete(&vha->nvme_del_done); 536 } 537 538 static void qla_nvme_remoteport_delete(struct nvme_fc_remote_port *rport) 539 { 540 fc_port_t *fcport; 541 struct qla_nvme_rport *qla_rport = rport->private, *trport; 542 543 fcport = qla_rport->fcport; 544 fcport->nvme_remote_port = NULL; 545 fcport->nvme_flag &= ~NVME_FLAG_REGISTERED; 546 547 list_for_each_entry_safe(qla_rport, trport, 548 &fcport->vha->nvme_rport_list, list) { 549 if (qla_rport->fcport == fcport) { 550 list_del(&qla_rport->list); 551 break; 552 } 553 } 554 complete(&fcport->nvme_del_done); 555 556 if (!test_bit(UNLOADING, &fcport->vha->dpc_flags)) { 557 INIT_WORK(&fcport->free_work, qlt_free_session_done); 558 schedule_work(&fcport->free_work); 559 } 560 561 fcport->nvme_flag &= ~NVME_FLAG_DELETING; 562 ql_log(ql_log_info, fcport->vha, 0x2110, 563 "remoteport_delete of %p completed.\n", fcport); 564 } 565 566 static struct nvme_fc_port_template qla_nvme_fc_transport = { 567 .localport_delete = qla_nvme_localport_delete, 568 .remoteport_delete = qla_nvme_remoteport_delete, 569 .create_queue = qla_nvme_alloc_queue, 570 .delete_queue = NULL, 571 .ls_req = qla_nvme_ls_req, 572 .ls_abort = qla_nvme_ls_abort, 573 .fcp_io = qla_nvme_post_cmd, 574 .fcp_abort = qla_nvme_fcp_abort, 575 .max_hw_queues = 8, 576 .max_sgl_segments = 128, 577 .max_dif_sgl_segments = 64, 578 .dma_boundary = 0xFFFFFFFF, 579 .local_priv_sz = 8, 580 .remote_priv_sz = sizeof(struct qla_nvme_rport), 581 .lsrqst_priv_sz = sizeof(struct nvme_private), 582 .fcprqst_priv_sz = sizeof(struct nvme_private), 583 }; 584 585 #define NVME_ABORT_POLLING_PERIOD 2 586 static int qla_nvme_wait_on_command(srb_t *sp) 587 { 588 int ret = QLA_SUCCESS; 589 590 wait_event_timeout(sp->nvme_ls_waitq, (atomic_read(&sp->ref_count) > 1), 591 NVME_ABORT_POLLING_PERIOD*HZ); 592 593 if (atomic_read(&sp->ref_count) > 1) 594 ret = QLA_FUNCTION_FAILED; 595 596 return ret; 597 } 598 599 void qla_nvme_abort(struct qla_hw_data *ha, struct srb *sp, int res) 600 { 601 int rval; 602 603 if (ha->flags.fw_started) { 604 rval = ha->isp_ops->abort_command(sp); 605 if (!rval && !qla_nvme_wait_on_command(sp)) 606 ql_log(ql_log_warn, NULL, 0x2112, 607 "timed out waiting on sp=%p\n", sp); 608 } else { 609 sp->done(sp, res); 610 } 611 } 612 613 static void qla_nvme_unregister_remote_port(struct work_struct *work) 614 { 615 struct fc_port *fcport = container_of(work, struct fc_port, 616 nvme_del_work); 617 struct qla_nvme_rport *qla_rport, *trport; 618 scsi_qla_host_t *base_vha; 619 620 if (!IS_ENABLED(CONFIG_NVME_FC)) 621 return; 622 623 ql_log(ql_log_warn, NULL, 0x2112, 624 "%s: unregister remoteport on %p\n",__func__, fcport); 625 626 base_vha = pci_get_drvdata(fcport->vha->hw->pdev); 627 if (test_bit(PFLG_DRIVER_REMOVING, &base_vha->pci_flags)) { 628 ql_dbg(ql_dbg_disc, fcport->vha, 0x2114, 629 "%s: Notify FC-NVMe transport, set devloss=0\n", 630 __func__); 631 632 nvme_fc_set_remoteport_devloss(fcport->nvme_remote_port, 0); 633 } 634 635 list_for_each_entry_safe(qla_rport, trport, 636 &fcport->vha->nvme_rport_list, list) { 637 if (qla_rport->fcport == fcport) { 638 ql_log(ql_log_info, fcport->vha, 0x2113, 639 "%s: fcport=%p\n", __func__, fcport); 640 init_completion(&fcport->nvme_del_done); 641 nvme_fc_unregister_remoteport( 642 fcport->nvme_remote_port); 643 wait_for_completion(&fcport->nvme_del_done); 644 break; 645 } 646 } 647 } 648 649 void qla_nvme_delete(struct scsi_qla_host *vha) 650 { 651 int nv_ret; 652 653 if (!IS_ENABLED(CONFIG_NVME_FC)) 654 return; 655 656 if (vha->nvme_local_port) { 657 init_completion(&vha->nvme_del_done); 658 ql_log(ql_log_info, vha, 0x2116, 659 "unregister localport=%p\n", 660 vha->nvme_local_port); 661 nv_ret = nvme_fc_unregister_localport(vha->nvme_local_port); 662 if (nv_ret) 663 ql_log(ql_log_info, vha, 0x2115, 664 "Unregister of localport failed\n"); 665 else 666 wait_for_completion(&vha->nvme_del_done); 667 } 668 } 669 670 int qla_nvme_register_hba(struct scsi_qla_host *vha) 671 { 672 struct nvme_fc_port_template *tmpl; 673 struct qla_hw_data *ha; 674 struct nvme_fc_port_info pinfo; 675 int ret = EINVAL; 676 677 if (!IS_ENABLED(CONFIG_NVME_FC)) 678 return ret; 679 680 ha = vha->hw; 681 tmpl = &qla_nvme_fc_transport; 682 683 WARN_ON(vha->nvme_local_port); 684 WARN_ON(ha->max_req_queues < 3); 685 686 qla_nvme_fc_transport.max_hw_queues = 687 min((uint8_t)(qla_nvme_fc_transport.max_hw_queues), 688 (uint8_t)(ha->max_req_queues - 2)); 689 690 pinfo.node_name = wwn_to_u64(vha->node_name); 691 pinfo.port_name = wwn_to_u64(vha->port_name); 692 pinfo.port_role = FC_PORT_ROLE_NVME_INITIATOR; 693 pinfo.port_id = vha->d_id.b24; 694 695 ql_log(ql_log_info, vha, 0xffff, 696 "register_localport: host-traddr=nn-0x%llx:pn-0x%llx on portID:%x\n", 697 pinfo.node_name, pinfo.port_name, pinfo.port_id); 698 qla_nvme_fc_transport.dma_boundary = vha->host->dma_boundary; 699 700 ret = nvme_fc_register_localport(&pinfo, tmpl, 701 get_device(&ha->pdev->dev), &vha->nvme_local_port); 702 if (ret) { 703 ql_log(ql_log_warn, vha, 0xffff, 704 "register_localport failed: ret=%x\n", ret); 705 } else { 706 vha->nvme_local_port->private = vha; 707 } 708 709 return ret; 710 } 711