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 rval = ha->isp_ops->abort_command(sp); 189 190 ql_dbg(ql_dbg_io, fcport->vha, 0x212b, 191 "%s: %s command for sp=%p, handle=%x on fcport=%p rval=%x\n", 192 __func__, (rval != QLA_SUCCESS) ? "Failed to abort" : "Aborted", 193 sp, sp->handle, fcport, rval); 194 } 195 196 static void qla_nvme_ls_abort(struct nvme_fc_local_port *lport, 197 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd) 198 { 199 struct nvme_private *priv = fd->private; 200 201 INIT_WORK(&priv->abort_work, qla_nvme_abort_work); 202 schedule_work(&priv->abort_work); 203 } 204 205 static void qla_nvme_ls_complete(struct work_struct *work) 206 { 207 struct nvme_private *priv = 208 container_of(work, struct nvme_private, ls_work); 209 struct nvmefc_ls_req *fd = priv->fd; 210 211 fd->done(fd, priv->comp_status); 212 } 213 214 static int qla_nvme_ls_req(struct nvme_fc_local_port *lport, 215 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd) 216 { 217 struct qla_nvme_rport *qla_rport = rport->private; 218 fc_port_t *fcport = qla_rport->fcport; 219 struct srb_iocb *nvme; 220 struct nvme_private *priv = fd->private; 221 struct scsi_qla_host *vha; 222 int rval = QLA_FUNCTION_FAILED; 223 struct qla_hw_data *ha; 224 srb_t *sp; 225 226 vha = fcport->vha; 227 ha = vha->hw; 228 /* Alloc SRB structure */ 229 sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC); 230 if (!sp) 231 return rval; 232 233 sp->type = SRB_NVME_LS; 234 sp->name = "nvme_ls"; 235 sp->done = qla_nvme_sp_ls_done; 236 atomic_set(&sp->ref_count, 1); 237 nvme = &sp->u.iocb_cmd; 238 priv->sp = sp; 239 priv->fd = fd; 240 INIT_WORK(&priv->ls_work, qla_nvme_ls_complete); 241 nvme->u.nvme.desc = fd; 242 nvme->u.nvme.dir = 0; 243 nvme->u.nvme.dl = 0; 244 nvme->u.nvme.cmd_len = fd->rqstlen; 245 nvme->u.nvme.rsp_len = fd->rsplen; 246 nvme->u.nvme.rsp_dma = fd->rspdma; 247 nvme->u.nvme.timeout_sec = fd->timeout; 248 nvme->u.nvme.cmd_dma = dma_map_single(&ha->pdev->dev, fd->rqstaddr, 249 fd->rqstlen, DMA_TO_DEVICE); 250 dma_sync_single_for_device(&ha->pdev->dev, nvme->u.nvme.cmd_dma, 251 fd->rqstlen, DMA_TO_DEVICE); 252 253 rval = qla2x00_start_sp(sp); 254 if (rval != QLA_SUCCESS) { 255 ql_log(ql_log_warn, vha, 0x700e, 256 "qla2x00_start_sp failed = %d\n", rval); 257 atomic_dec(&sp->ref_count); 258 wake_up(&sp->nvme_ls_waitq); 259 return rval; 260 } 261 262 return rval; 263 } 264 265 static void qla_nvme_fcp_abort(struct nvme_fc_local_port *lport, 266 struct nvme_fc_remote_port *rport, void *hw_queue_handle, 267 struct nvmefc_fcp_req *fd) 268 { 269 struct nvme_private *priv = fd->private; 270 271 INIT_WORK(&priv->abort_work, qla_nvme_abort_work); 272 schedule_work(&priv->abort_work); 273 } 274 275 static inline int qla2x00_start_nvme_mq(srb_t *sp) 276 { 277 unsigned long flags; 278 uint32_t *clr_ptr; 279 uint32_t index; 280 uint32_t handle; 281 struct cmd_nvme *cmd_pkt; 282 uint16_t cnt, i; 283 uint16_t req_cnt; 284 uint16_t tot_dsds; 285 uint16_t avail_dsds; 286 uint32_t *cur_dsd; 287 struct req_que *req = NULL; 288 struct scsi_qla_host *vha = sp->fcport->vha; 289 struct qla_hw_data *ha = vha->hw; 290 struct qla_qpair *qpair = sp->qpair; 291 struct srb_iocb *nvme = &sp->u.iocb_cmd; 292 struct scatterlist *sgl, *sg; 293 struct nvmefc_fcp_req *fd = nvme->u.nvme.desc; 294 uint32_t rval = QLA_SUCCESS; 295 296 /* Setup qpair pointers */ 297 req = qpair->req; 298 tot_dsds = fd->sg_cnt; 299 300 /* Acquire qpair specific lock */ 301 spin_lock_irqsave(&qpair->qp_lock, flags); 302 303 /* Check for room in outstanding command list. */ 304 handle = req->current_outstanding_cmd; 305 for (index = 1; index < req->num_outstanding_cmds; index++) { 306 handle++; 307 if (handle == req->num_outstanding_cmds) 308 handle = 1; 309 if (!req->outstanding_cmds[handle]) 310 break; 311 } 312 313 if (index == req->num_outstanding_cmds) { 314 rval = -EBUSY; 315 goto queuing_error; 316 } 317 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 318 if (req->cnt < (req_cnt + 2)) { 319 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr : 320 RD_REG_DWORD_RELAXED(req->req_q_out); 321 322 if (req->ring_index < cnt) 323 req->cnt = cnt - req->ring_index; 324 else 325 req->cnt = req->length - (req->ring_index - cnt); 326 327 if (req->cnt < (req_cnt + 2)){ 328 rval = -EBUSY; 329 goto queuing_error; 330 } 331 } 332 333 if (unlikely(!fd->sqid)) { 334 struct nvme_fc_cmd_iu *cmd = fd->cmdaddr; 335 if (cmd->sqe.common.opcode == nvme_admin_async_event) { 336 nvme->u.nvme.aen_op = 1; 337 atomic_inc(&ha->nvme_active_aen_cnt); 338 } 339 } 340 341 /* Build command packet. */ 342 req->current_outstanding_cmd = handle; 343 req->outstanding_cmds[handle] = sp; 344 sp->handle = handle; 345 req->cnt -= req_cnt; 346 347 cmd_pkt = (struct cmd_nvme *)req->ring_ptr; 348 cmd_pkt->handle = MAKE_HANDLE(req->id, handle); 349 350 /* Zero out remaining portion of packet. */ 351 clr_ptr = (uint32_t *)cmd_pkt + 2; 352 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 353 354 cmd_pkt->entry_status = 0; 355 356 /* Update entry type to indicate Command NVME IOCB */ 357 cmd_pkt->entry_type = COMMAND_NVME; 358 359 /* No data transfer how do we check buffer len == 0?? */ 360 if (fd->io_dir == NVMEFC_FCP_READ) { 361 cmd_pkt->control_flags = 362 cpu_to_le16(CF_READ_DATA | CF_NVME_ENABLE); 363 vha->qla_stats.input_bytes += fd->payload_length; 364 vha->qla_stats.input_requests++; 365 } else if (fd->io_dir == NVMEFC_FCP_WRITE) { 366 cmd_pkt->control_flags = 367 cpu_to_le16(CF_WRITE_DATA | CF_NVME_ENABLE); 368 vha->qla_stats.output_bytes += fd->payload_length; 369 vha->qla_stats.output_requests++; 370 } else if (fd->io_dir == 0) { 371 cmd_pkt->control_flags = cpu_to_le16(CF_NVME_ENABLE); 372 } 373 374 /* Set NPORT-ID */ 375 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 376 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 377 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 378 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 379 cmd_pkt->vp_index = sp->fcport->vha->vp_idx; 380 381 /* NVME RSP IU */ 382 cmd_pkt->nvme_rsp_dsd_len = cpu_to_le16(fd->rsplen); 383 cmd_pkt->nvme_rsp_dseg_address[0] = cpu_to_le32(LSD(fd->rspdma)); 384 cmd_pkt->nvme_rsp_dseg_address[1] = cpu_to_le32(MSD(fd->rspdma)); 385 386 /* NVME CNMD IU */ 387 cmd_pkt->nvme_cmnd_dseg_len = cpu_to_le16(fd->cmdlen); 388 cmd_pkt->nvme_cmnd_dseg_address[0] = cpu_to_le32(LSD(fd->cmddma)); 389 cmd_pkt->nvme_cmnd_dseg_address[1] = cpu_to_le32(MSD(fd->cmddma)); 390 391 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 392 cmd_pkt->byte_count = cpu_to_le32(fd->payload_length); 393 394 /* One DSD is available in the Command Type NVME IOCB */ 395 avail_dsds = 1; 396 cur_dsd = (uint32_t *)&cmd_pkt->nvme_data_dseg_address[0]; 397 sgl = fd->first_sgl; 398 399 /* Load data segments */ 400 for_each_sg(sgl, sg, tot_dsds, i) { 401 dma_addr_t sle_dma; 402 cont_a64_entry_t *cont_pkt; 403 404 /* Allocate additional continuation packets? */ 405 if (avail_dsds == 0) { 406 /* 407 * Five DSDs are available in the Continuation 408 * Type 1 IOCB. 409 */ 410 411 /* Adjust ring index */ 412 req->ring_index++; 413 if (req->ring_index == req->length) { 414 req->ring_index = 0; 415 req->ring_ptr = req->ring; 416 } else { 417 req->ring_ptr++; 418 } 419 cont_pkt = (cont_a64_entry_t *)req->ring_ptr; 420 *((uint32_t *)(&cont_pkt->entry_type)) = 421 cpu_to_le32(CONTINUE_A64_TYPE); 422 423 cur_dsd = (uint32_t *)cont_pkt->dseg_0_address; 424 avail_dsds = 5; 425 } 426 427 sle_dma = sg_dma_address(sg); 428 *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); 429 *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); 430 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); 431 avail_dsds--; 432 } 433 434 /* Set total entry count. */ 435 cmd_pkt->entry_count = (uint8_t)req_cnt; 436 wmb(); 437 438 /* Adjust ring index. */ 439 req->ring_index++; 440 if (req->ring_index == req->length) { 441 req->ring_index = 0; 442 req->ring_ptr = req->ring; 443 } else { 444 req->ring_ptr++; 445 } 446 447 /* Set chip new ring index. */ 448 WRT_REG_DWORD(req->req_q_in, req->ring_index); 449 450 queuing_error: 451 spin_unlock_irqrestore(&qpair->qp_lock, flags); 452 return rval; 453 } 454 455 /* Post a command */ 456 static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport, 457 struct nvme_fc_remote_port *rport, void *hw_queue_handle, 458 struct nvmefc_fcp_req *fd) 459 { 460 fc_port_t *fcport; 461 struct srb_iocb *nvme; 462 struct scsi_qla_host *vha; 463 int rval = -ENODEV; 464 srb_t *sp; 465 struct qla_qpair *qpair = hw_queue_handle; 466 struct nvme_private *priv = fd->private; 467 struct qla_nvme_rport *qla_rport = rport->private; 468 469 fcport = qla_rport->fcport; 470 471 vha = fcport->vha; 472 473 if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) 474 return rval; 475 476 /* 477 * If we know the dev is going away while the transport is still sending 478 * IO's return busy back to stall the IO Q. This happens when the 479 * link goes away and fw hasn't notified us yet, but IO's are being 480 * returned. If the dev comes back quickly we won't exhaust the IO 481 * retry count at the core. 482 */ 483 if (fcport->nvme_flag & NVME_FLAG_RESETTING) 484 return -EBUSY; 485 486 /* Alloc SRB structure */ 487 sp = qla2xxx_get_qpair_sp(vha, qpair, fcport, GFP_ATOMIC); 488 if (!sp) 489 return -EBUSY; 490 491 atomic_set(&sp->ref_count, 1); 492 init_waitqueue_head(&sp->nvme_ls_waitq); 493 priv->sp = sp; 494 sp->type = SRB_NVME_CMD; 495 sp->name = "nvme_cmd"; 496 sp->done = qla_nvme_sp_done; 497 sp->qpair = qpair; 498 sp->vha = vha; 499 nvme = &sp->u.iocb_cmd; 500 nvme->u.nvme.desc = fd; 501 502 rval = qla2x00_start_nvme_mq(sp); 503 if (rval != QLA_SUCCESS) { 504 ql_log(ql_log_warn, vha, 0x212d, 505 "qla2x00_start_nvme_mq failed = %d\n", rval); 506 atomic_dec(&sp->ref_count); 507 wake_up(&sp->nvme_ls_waitq); 508 } 509 510 return rval; 511 } 512 513 static void qla_nvme_localport_delete(struct nvme_fc_local_port *lport) 514 { 515 struct scsi_qla_host *vha = lport->private; 516 517 ql_log(ql_log_info, vha, 0x210f, 518 "localport delete of %p completed.\n", vha->nvme_local_port); 519 vha->nvme_local_port = NULL; 520 complete(&vha->nvme_del_done); 521 } 522 523 static void qla_nvme_remoteport_delete(struct nvme_fc_remote_port *rport) 524 { 525 fc_port_t *fcport; 526 struct qla_nvme_rport *qla_rport = rport->private, *trport; 527 528 fcport = qla_rport->fcport; 529 fcport->nvme_remote_port = NULL; 530 fcport->nvme_flag &= ~NVME_FLAG_REGISTERED; 531 532 list_for_each_entry_safe(qla_rport, trport, 533 &fcport->vha->nvme_rport_list, list) { 534 if (qla_rport->fcport == fcport) { 535 list_del(&qla_rport->list); 536 break; 537 } 538 } 539 complete(&fcport->nvme_del_done); 540 541 if (!test_bit(UNLOADING, &fcport->vha->dpc_flags)) { 542 INIT_WORK(&fcport->free_work, qlt_free_session_done); 543 schedule_work(&fcport->free_work); 544 } 545 546 fcport->nvme_flag &= ~NVME_FLAG_DELETING; 547 ql_log(ql_log_info, fcport->vha, 0x2110, 548 "remoteport_delete of %p completed.\n", fcport); 549 } 550 551 static struct nvme_fc_port_template qla_nvme_fc_transport = { 552 .localport_delete = qla_nvme_localport_delete, 553 .remoteport_delete = qla_nvme_remoteport_delete, 554 .create_queue = qla_nvme_alloc_queue, 555 .delete_queue = NULL, 556 .ls_req = qla_nvme_ls_req, 557 .ls_abort = qla_nvme_ls_abort, 558 .fcp_io = qla_nvme_post_cmd, 559 .fcp_abort = qla_nvme_fcp_abort, 560 .max_hw_queues = 8, 561 .max_sgl_segments = 128, 562 .max_dif_sgl_segments = 64, 563 .dma_boundary = 0xFFFFFFFF, 564 .local_priv_sz = 8, 565 .remote_priv_sz = sizeof(struct qla_nvme_rport), 566 .lsrqst_priv_sz = sizeof(struct nvme_private), 567 .fcprqst_priv_sz = sizeof(struct nvme_private), 568 }; 569 570 #define NVME_ABORT_POLLING_PERIOD 2 571 static int qla_nvme_wait_on_command(srb_t *sp) 572 { 573 int ret = QLA_SUCCESS; 574 575 wait_event_timeout(sp->nvme_ls_waitq, (atomic_read(&sp->ref_count) > 1), 576 NVME_ABORT_POLLING_PERIOD*HZ); 577 578 if (atomic_read(&sp->ref_count) > 1) 579 ret = QLA_FUNCTION_FAILED; 580 581 return ret; 582 } 583 584 void qla_nvme_abort(struct qla_hw_data *ha, struct srb *sp, int res) 585 { 586 int rval; 587 588 if (ha->flags.fw_started) { 589 rval = ha->isp_ops->abort_command(sp); 590 if (!rval && !qla_nvme_wait_on_command(sp)) 591 ql_log(ql_log_warn, NULL, 0x2112, 592 "timed out waiting on sp=%p\n", sp); 593 } else { 594 sp->done(sp, res); 595 } 596 } 597 598 static void qla_nvme_unregister_remote_port(struct work_struct *work) 599 { 600 struct fc_port *fcport = container_of(work, struct fc_port, 601 nvme_del_work); 602 struct qla_nvme_rport *qla_rport, *trport; 603 604 if (!IS_ENABLED(CONFIG_NVME_FC)) 605 return; 606 607 ql_log(ql_log_warn, NULL, 0x2112, 608 "%s: unregister remoteport on %p\n",__func__, fcport); 609 610 list_for_each_entry_safe(qla_rport, trport, 611 &fcport->vha->nvme_rport_list, list) { 612 if (qla_rport->fcport == fcport) { 613 ql_log(ql_log_info, fcport->vha, 0x2113, 614 "%s: fcport=%p\n", __func__, fcport); 615 init_completion(&fcport->nvme_del_done); 616 nvme_fc_unregister_remoteport( 617 fcport->nvme_remote_port); 618 wait_for_completion(&fcport->nvme_del_done); 619 break; 620 } 621 } 622 } 623 624 void qla_nvme_delete(struct scsi_qla_host *vha) 625 { 626 struct qla_nvme_rport *qla_rport, *trport; 627 fc_port_t *fcport; 628 int nv_ret; 629 630 if (!IS_ENABLED(CONFIG_NVME_FC)) 631 return; 632 633 list_for_each_entry_safe(qla_rport, trport, 634 &vha->nvme_rport_list, list) { 635 fcport = qla_rport->fcport; 636 637 ql_log(ql_log_info, fcport->vha, 0x2114, "%s: fcport=%p\n", 638 __func__, fcport); 639 640 nvme_fc_set_remoteport_devloss(fcport->nvme_remote_port, 0); 641 } 642 643 if (vha->nvme_local_port) { 644 init_completion(&vha->nvme_del_done); 645 ql_log(ql_log_info, vha, 0x2116, 646 "unregister localport=%p\n", 647 vha->nvme_local_port); 648 nv_ret = nvme_fc_unregister_localport(vha->nvme_local_port); 649 if (nv_ret) 650 ql_log(ql_log_info, vha, 0x2115, 651 "Unregister of localport failed\n"); 652 else 653 wait_for_completion(&vha->nvme_del_done); 654 } 655 } 656 657 int qla_nvme_register_hba(struct scsi_qla_host *vha) 658 { 659 struct nvme_fc_port_template *tmpl; 660 struct qla_hw_data *ha; 661 struct nvme_fc_port_info pinfo; 662 int ret = EINVAL; 663 664 if (!IS_ENABLED(CONFIG_NVME_FC)) 665 return ret; 666 667 ha = vha->hw; 668 tmpl = &qla_nvme_fc_transport; 669 670 WARN_ON(vha->nvme_local_port); 671 WARN_ON(ha->max_req_queues < 3); 672 673 qla_nvme_fc_transport.max_hw_queues = 674 min((uint8_t)(qla_nvme_fc_transport.max_hw_queues), 675 (uint8_t)(ha->max_req_queues - 2)); 676 677 pinfo.node_name = wwn_to_u64(vha->node_name); 678 pinfo.port_name = wwn_to_u64(vha->port_name); 679 pinfo.port_role = FC_PORT_ROLE_NVME_INITIATOR; 680 pinfo.port_id = vha->d_id.b24; 681 682 ql_log(ql_log_info, vha, 0xffff, 683 "register_localport: host-traddr=nn-0x%llx:pn-0x%llx on portID:%x\n", 684 pinfo.node_name, pinfo.port_name, pinfo.port_id); 685 qla_nvme_fc_transport.dma_boundary = vha->host->dma_boundary; 686 687 ret = nvme_fc_register_localport(&pinfo, tmpl, 688 get_device(&ha->pdev->dev), &vha->nvme_local_port); 689 if (ret) { 690 ql_log(ql_log_warn, vha, 0xffff, 691 "register_localport failed: ret=%x\n", ret); 692 } else { 693 vha->nvme_local_port->private = vha; 694 } 695 696 return ret; 697 } 698