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 int qla_nvme_register_remote(struct scsi_qla_host *vha, struct fc_port *fcport) 16 { 17 struct qla_nvme_rport *rport; 18 struct nvme_fc_port_info req; 19 int ret; 20 21 if (!IS_ENABLED(CONFIG_NVME_FC)) 22 return 0; 23 24 if (!vha->flags.nvme_enabled) { 25 ql_log(ql_log_info, vha, 0x2100, 26 "%s: Not registering target since Host NVME is not enabled\n", 27 __func__); 28 return 0; 29 } 30 31 if (!vha->nvme_local_port && qla_nvme_register_hba(vha)) 32 return 0; 33 34 if (!(fcport->nvme_prli_service_param & 35 (NVME_PRLI_SP_TARGET | NVME_PRLI_SP_DISCOVERY)) || 36 (fcport->nvme_flag & NVME_FLAG_REGISTERED)) 37 return 0; 38 39 fcport->nvme_flag &= ~NVME_FLAG_RESETTING; 40 41 memset(&req, 0, sizeof(struct nvme_fc_port_info)); 42 req.port_name = wwn_to_u64(fcport->port_name); 43 req.node_name = wwn_to_u64(fcport->node_name); 44 req.port_role = 0; 45 req.dev_loss_tmo = NVME_FC_DEV_LOSS_TMO; 46 47 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_INITIATOR) 48 req.port_role = FC_PORT_ROLE_NVME_INITIATOR; 49 50 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_TARGET) 51 req.port_role |= FC_PORT_ROLE_NVME_TARGET; 52 53 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_DISCOVERY) 54 req.port_role |= FC_PORT_ROLE_NVME_DISCOVERY; 55 56 req.port_id = fcport->d_id.b24; 57 58 ql_log(ql_log_info, vha, 0x2102, 59 "%s: traddr=nn-0x%016llx:pn-0x%016llx PortID:%06x\n", 60 __func__, req.node_name, req.port_name, 61 req.port_id); 62 63 ret = nvme_fc_register_remoteport(vha->nvme_local_port, &req, 64 &fcport->nvme_remote_port); 65 if (ret) { 66 ql_log(ql_log_warn, vha, 0x212e, 67 "Failed to register remote port. Transport returned %d\n", 68 ret); 69 return ret; 70 } 71 72 rport = fcport->nvme_remote_port->private; 73 rport->fcport = fcport; 74 75 fcport->nvme_flag |= NVME_FLAG_REGISTERED; 76 return 0; 77 } 78 79 /* Allocate a queue for NVMe traffic */ 80 static int qla_nvme_alloc_queue(struct nvme_fc_local_port *lport, 81 unsigned int qidx, u16 qsize, void **handle) 82 { 83 struct scsi_qla_host *vha; 84 struct qla_hw_data *ha; 85 struct qla_qpair *qpair; 86 87 if (!qidx) 88 qidx++; 89 90 vha = (struct scsi_qla_host *)lport->private; 91 ha = vha->hw; 92 93 ql_log(ql_log_info, vha, 0x2104, 94 "%s: handle %p, idx =%d, qsize %d\n", 95 __func__, handle, qidx, qsize); 96 97 if (qidx > qla_nvme_fc_transport.max_hw_queues) { 98 ql_log(ql_log_warn, vha, 0x212f, 99 "%s: Illegal qidx=%d. Max=%d\n", 100 __func__, qidx, qla_nvme_fc_transport.max_hw_queues); 101 return -EINVAL; 102 } 103 104 if (ha->queue_pair_map[qidx]) { 105 *handle = ha->queue_pair_map[qidx]; 106 ql_log(ql_log_info, vha, 0x2121, 107 "Returning existing qpair of %p for idx=%x\n", 108 *handle, qidx); 109 return 0; 110 } 111 112 qpair = qla2xxx_create_qpair(vha, 5, vha->vp_idx, true); 113 if (qpair == NULL) { 114 ql_log(ql_log_warn, vha, 0x2122, 115 "Failed to allocate qpair\n"); 116 return -EINVAL; 117 } 118 *handle = qpair; 119 120 return 0; 121 } 122 123 static void qla_nvme_release_fcp_cmd_kref(struct kref *kref) 124 { 125 struct srb *sp = container_of(kref, struct srb, cmd_kref); 126 struct nvme_private *priv = (struct nvme_private *)sp->priv; 127 struct nvmefc_fcp_req *fd; 128 struct srb_iocb *nvme; 129 unsigned long flags; 130 131 if (!priv) 132 goto out; 133 134 nvme = &sp->u.iocb_cmd; 135 fd = nvme->u.nvme.desc; 136 137 spin_lock_irqsave(&priv->cmd_lock, flags); 138 priv->sp = NULL; 139 sp->priv = NULL; 140 if (priv->comp_status == QLA_SUCCESS) { 141 fd->rcv_rsplen = nvme->u.nvme.rsp_pyld_len; 142 } else { 143 fd->rcv_rsplen = 0; 144 fd->transferred_length = 0; 145 } 146 fd->status = 0; 147 spin_unlock_irqrestore(&priv->cmd_lock, flags); 148 149 fd->done(fd); 150 out: 151 qla2xxx_rel_qpair_sp(sp->qpair, sp); 152 } 153 154 static void qla_nvme_release_ls_cmd_kref(struct kref *kref) 155 { 156 struct srb *sp = container_of(kref, struct srb, cmd_kref); 157 struct nvme_private *priv = (struct nvme_private *)sp->priv; 158 struct nvmefc_ls_req *fd; 159 unsigned long flags; 160 161 if (!priv) 162 goto out; 163 164 spin_lock_irqsave(&priv->cmd_lock, flags); 165 priv->sp = NULL; 166 sp->priv = NULL; 167 spin_unlock_irqrestore(&priv->cmd_lock, flags); 168 169 fd = priv->fd; 170 fd->done(fd, priv->comp_status); 171 out: 172 qla2x00_rel_sp(sp); 173 } 174 175 static void qla_nvme_ls_complete(struct work_struct *work) 176 { 177 struct nvme_private *priv = 178 container_of(work, struct nvme_private, ls_work); 179 180 kref_put(&priv->sp->cmd_kref, qla_nvme_release_ls_cmd_kref); 181 } 182 183 static void qla_nvme_sp_ls_done(srb_t *sp, int res) 184 { 185 struct nvme_private *priv = sp->priv; 186 187 if (WARN_ON_ONCE(kref_read(&sp->cmd_kref) == 0)) 188 return; 189 190 if (res) 191 res = -EINVAL; 192 193 priv->comp_status = res; 194 INIT_WORK(&priv->ls_work, qla_nvme_ls_complete); 195 schedule_work(&priv->ls_work); 196 } 197 198 /* it assumed that QPair lock is held. */ 199 static void qla_nvme_sp_done(srb_t *sp, int res) 200 { 201 struct nvme_private *priv = sp->priv; 202 203 priv->comp_status = res; 204 kref_put(&sp->cmd_kref, qla_nvme_release_fcp_cmd_kref); 205 206 return; 207 } 208 209 static void qla_nvme_abort_work(struct work_struct *work) 210 { 211 struct nvme_private *priv = 212 container_of(work, struct nvme_private, abort_work); 213 srb_t *sp = priv->sp; 214 fc_port_t *fcport = sp->fcport; 215 struct qla_hw_data *ha = fcport->vha->hw; 216 int rval; 217 218 ql_dbg(ql_dbg_io, fcport->vha, 0xffff, 219 "%s called for sp=%p, hndl=%x on fcport=%p deleted=%d\n", 220 __func__, sp, sp->handle, fcport, fcport->deleted); 221 222 if (!ha->flags.fw_started && fcport->deleted) 223 goto out; 224 225 if (ha->flags.host_shutting_down) { 226 ql_log(ql_log_info, sp->fcport->vha, 0xffff, 227 "%s Calling done on sp: %p, type: 0x%x\n", 228 __func__, sp, sp->type); 229 sp->done(sp, 0); 230 goto out; 231 } 232 233 rval = ha->isp_ops->abort_command(sp); 234 235 ql_dbg(ql_dbg_io, fcport->vha, 0x212b, 236 "%s: %s command for sp=%p, handle=%x on fcport=%p rval=%x\n", 237 __func__, (rval != QLA_SUCCESS) ? "Failed to abort" : "Aborted", 238 sp, sp->handle, fcport, rval); 239 240 out: 241 /* kref_get was done before work was schedule. */ 242 kref_put(&sp->cmd_kref, sp->put_fn); 243 } 244 245 static void qla_nvme_ls_abort(struct nvme_fc_local_port *lport, 246 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd) 247 { 248 struct nvme_private *priv = fd->private; 249 unsigned long flags; 250 251 spin_lock_irqsave(&priv->cmd_lock, flags); 252 if (!priv->sp) { 253 spin_unlock_irqrestore(&priv->cmd_lock, flags); 254 return; 255 } 256 257 if (!kref_get_unless_zero(&priv->sp->cmd_kref)) { 258 spin_unlock_irqrestore(&priv->cmd_lock, flags); 259 return; 260 } 261 spin_unlock_irqrestore(&priv->cmd_lock, flags); 262 263 INIT_WORK(&priv->abort_work, qla_nvme_abort_work); 264 schedule_work(&priv->abort_work); 265 } 266 267 static int qla_nvme_ls_req(struct nvme_fc_local_port *lport, 268 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd) 269 { 270 struct qla_nvme_rport *qla_rport = rport->private; 271 fc_port_t *fcport = qla_rport->fcport; 272 struct srb_iocb *nvme; 273 struct nvme_private *priv = fd->private; 274 struct scsi_qla_host *vha; 275 int rval = QLA_FUNCTION_FAILED; 276 struct qla_hw_data *ha; 277 srb_t *sp; 278 279 280 if (!fcport || (fcport && fcport->deleted)) 281 return rval; 282 283 vha = fcport->vha; 284 ha = vha->hw; 285 286 if (!ha->flags.fw_started) 287 return rval; 288 289 /* Alloc SRB structure */ 290 sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC); 291 if (!sp) 292 return rval; 293 294 sp->type = SRB_NVME_LS; 295 sp->name = "nvme_ls"; 296 sp->done = qla_nvme_sp_ls_done; 297 sp->put_fn = qla_nvme_release_ls_cmd_kref; 298 sp->priv = (void *)priv; 299 priv->sp = sp; 300 kref_init(&sp->cmd_kref); 301 spin_lock_init(&priv->cmd_lock); 302 nvme = &sp->u.iocb_cmd; 303 priv->fd = fd; 304 nvme->u.nvme.desc = fd; 305 nvme->u.nvme.dir = 0; 306 nvme->u.nvme.dl = 0; 307 nvme->u.nvme.cmd_len = fd->rqstlen; 308 nvme->u.nvme.rsp_len = fd->rsplen; 309 nvme->u.nvme.rsp_dma = fd->rspdma; 310 nvme->u.nvme.timeout_sec = fd->timeout; 311 nvme->u.nvme.cmd_dma = dma_map_single(&ha->pdev->dev, fd->rqstaddr, 312 fd->rqstlen, DMA_TO_DEVICE); 313 dma_sync_single_for_device(&ha->pdev->dev, nvme->u.nvme.cmd_dma, 314 fd->rqstlen, DMA_TO_DEVICE); 315 316 rval = qla2x00_start_sp(sp); 317 if (rval != QLA_SUCCESS) { 318 ql_log(ql_log_warn, vha, 0x700e, 319 "qla2x00_start_sp failed = %d\n", rval); 320 wake_up(&sp->nvme_ls_waitq); 321 sp->priv = NULL; 322 priv->sp = NULL; 323 qla2x00_rel_sp(sp); 324 return rval; 325 } 326 327 return rval; 328 } 329 330 static void qla_nvme_fcp_abort(struct nvme_fc_local_port *lport, 331 struct nvme_fc_remote_port *rport, void *hw_queue_handle, 332 struct nvmefc_fcp_req *fd) 333 { 334 struct nvme_private *priv = fd->private; 335 unsigned long flags; 336 337 spin_lock_irqsave(&priv->cmd_lock, flags); 338 if (!priv->sp) { 339 spin_unlock_irqrestore(&priv->cmd_lock, flags); 340 return; 341 } 342 if (!kref_get_unless_zero(&priv->sp->cmd_kref)) { 343 spin_unlock_irqrestore(&priv->cmd_lock, flags); 344 return; 345 } 346 spin_unlock_irqrestore(&priv->cmd_lock, flags); 347 348 INIT_WORK(&priv->abort_work, qla_nvme_abort_work); 349 schedule_work(&priv->abort_work); 350 } 351 352 static inline int qla2x00_start_nvme_mq(srb_t *sp) 353 { 354 unsigned long flags; 355 uint32_t *clr_ptr; 356 uint32_t handle; 357 struct cmd_nvme *cmd_pkt; 358 uint16_t cnt, i; 359 uint16_t req_cnt; 360 uint16_t tot_dsds; 361 uint16_t avail_dsds; 362 struct dsd64 *cur_dsd; 363 struct req_que *req = NULL; 364 struct scsi_qla_host *vha = sp->fcport->vha; 365 struct qla_hw_data *ha = vha->hw; 366 struct qla_qpair *qpair = sp->qpair; 367 struct srb_iocb *nvme = &sp->u.iocb_cmd; 368 struct scatterlist *sgl, *sg; 369 struct nvmefc_fcp_req *fd = nvme->u.nvme.desc; 370 uint32_t rval = QLA_SUCCESS; 371 372 /* Setup qpair pointers */ 373 req = qpair->req; 374 tot_dsds = fd->sg_cnt; 375 376 /* Acquire qpair specific lock */ 377 spin_lock_irqsave(&qpair->qp_lock, flags); 378 379 handle = qla2xxx_get_next_handle(req); 380 if (handle == 0) { 381 rval = -EBUSY; 382 goto queuing_error; 383 } 384 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 385 if (req->cnt < (req_cnt + 2)) { 386 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr : 387 RD_REG_DWORD_RELAXED(req->req_q_out); 388 389 if (req->ring_index < cnt) 390 req->cnt = cnt - req->ring_index; 391 else 392 req->cnt = req->length - (req->ring_index - cnt); 393 394 if (req->cnt < (req_cnt + 2)){ 395 rval = -EBUSY; 396 goto queuing_error; 397 } 398 } 399 400 if (unlikely(!fd->sqid)) { 401 struct nvme_fc_cmd_iu *cmd = fd->cmdaddr; 402 403 if (cmd->sqe.common.opcode == nvme_admin_async_event) { 404 nvme->u.nvme.aen_op = 1; 405 atomic_inc(&ha->nvme_active_aen_cnt); 406 } 407 } 408 409 /* Build command packet. */ 410 req->current_outstanding_cmd = handle; 411 req->outstanding_cmds[handle] = sp; 412 sp->handle = handle; 413 req->cnt -= req_cnt; 414 415 cmd_pkt = (struct cmd_nvme *)req->ring_ptr; 416 cmd_pkt->handle = make_handle(req->id, handle); 417 418 /* Zero out remaining portion of packet. */ 419 clr_ptr = (uint32_t *)cmd_pkt + 2; 420 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 421 422 cmd_pkt->entry_status = 0; 423 424 /* Update entry type to indicate Command NVME IOCB */ 425 cmd_pkt->entry_type = COMMAND_NVME; 426 427 /* No data transfer how do we check buffer len == 0?? */ 428 if (fd->io_dir == NVMEFC_FCP_READ) { 429 cmd_pkt->control_flags = CF_READ_DATA; 430 vha->qla_stats.input_bytes += fd->payload_length; 431 vha->qla_stats.input_requests++; 432 } else if (fd->io_dir == NVMEFC_FCP_WRITE) { 433 cmd_pkt->control_flags = CF_WRITE_DATA; 434 if ((vha->flags.nvme_first_burst) && 435 (sp->fcport->nvme_prli_service_param & 436 NVME_PRLI_SP_FIRST_BURST)) { 437 if ((fd->payload_length <= 438 sp->fcport->nvme_first_burst_size) || 439 (sp->fcport->nvme_first_burst_size == 0)) 440 cmd_pkt->control_flags |= 441 CF_NVME_FIRST_BURST_ENABLE; 442 } 443 vha->qla_stats.output_bytes += fd->payload_length; 444 vha->qla_stats.output_requests++; 445 } else if (fd->io_dir == 0) { 446 cmd_pkt->control_flags = 0; 447 } 448 449 /* Set NPORT-ID */ 450 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 451 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 452 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 453 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 454 cmd_pkt->vp_index = sp->fcport->vha->vp_idx; 455 456 /* NVME RSP IU */ 457 cmd_pkt->nvme_rsp_dsd_len = cpu_to_le16(fd->rsplen); 458 put_unaligned_le64(fd->rspdma, &cmd_pkt->nvme_rsp_dseg_address); 459 460 /* NVME CNMD IU */ 461 cmd_pkt->nvme_cmnd_dseg_len = cpu_to_le16(fd->cmdlen); 462 cmd_pkt->nvme_cmnd_dseg_address = cpu_to_le64(fd->cmddma); 463 464 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 465 cmd_pkt->byte_count = cpu_to_le32(fd->payload_length); 466 467 /* One DSD is available in the Command Type NVME IOCB */ 468 avail_dsds = 1; 469 cur_dsd = &cmd_pkt->nvme_dsd; 470 sgl = fd->first_sgl; 471 472 /* Load data segments */ 473 for_each_sg(sgl, sg, tot_dsds, i) { 474 cont_a64_entry_t *cont_pkt; 475 476 /* Allocate additional continuation packets? */ 477 if (avail_dsds == 0) { 478 /* 479 * Five DSDs are available in the Continuation 480 * Type 1 IOCB. 481 */ 482 483 /* Adjust ring index */ 484 req->ring_index++; 485 if (req->ring_index == req->length) { 486 req->ring_index = 0; 487 req->ring_ptr = req->ring; 488 } else { 489 req->ring_ptr++; 490 } 491 cont_pkt = (cont_a64_entry_t *)req->ring_ptr; 492 put_unaligned_le32(CONTINUE_A64_TYPE, 493 &cont_pkt->entry_type); 494 495 cur_dsd = cont_pkt->dsd; 496 avail_dsds = ARRAY_SIZE(cont_pkt->dsd); 497 } 498 499 append_dsd64(&cur_dsd, sg); 500 avail_dsds--; 501 } 502 503 /* Set total entry count. */ 504 cmd_pkt->entry_count = (uint8_t)req_cnt; 505 wmb(); 506 507 /* Adjust ring index. */ 508 req->ring_index++; 509 if (req->ring_index == req->length) { 510 req->ring_index = 0; 511 req->ring_ptr = req->ring; 512 } else { 513 req->ring_ptr++; 514 } 515 516 /* Set chip new ring index. */ 517 WRT_REG_DWORD(req->req_q_in, req->ring_index); 518 519 queuing_error: 520 spin_unlock_irqrestore(&qpair->qp_lock, flags); 521 return rval; 522 } 523 524 /* Post a command */ 525 static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport, 526 struct nvme_fc_remote_port *rport, void *hw_queue_handle, 527 struct nvmefc_fcp_req *fd) 528 { 529 fc_port_t *fcport; 530 struct srb_iocb *nvme; 531 struct scsi_qla_host *vha; 532 int rval = -ENODEV; 533 srb_t *sp; 534 struct qla_qpair *qpair = hw_queue_handle; 535 struct nvme_private *priv = fd->private; 536 struct qla_nvme_rport *qla_rport = rport->private; 537 538 fcport = qla_rport->fcport; 539 540 if (!qpair || !fcport || (qpair && !qpair->fw_started) || 541 (fcport && fcport->deleted)) 542 return rval; 543 544 vha = fcport->vha; 545 /* 546 * If we know the dev is going away while the transport is still sending 547 * IO's return busy back to stall the IO Q. This happens when the 548 * link goes away and fw hasn't notified us yet, but IO's are being 549 * returned. If the dev comes back quickly we won't exhaust the IO 550 * retry count at the core. 551 */ 552 if (fcport->nvme_flag & NVME_FLAG_RESETTING) 553 return -EBUSY; 554 555 /* Alloc SRB structure */ 556 sp = qla2xxx_get_qpair_sp(vha, qpair, fcport, GFP_ATOMIC); 557 if (!sp) 558 return -EBUSY; 559 560 init_waitqueue_head(&sp->nvme_ls_waitq); 561 kref_init(&sp->cmd_kref); 562 spin_lock_init(&priv->cmd_lock); 563 sp->priv = (void *)priv; 564 priv->sp = sp; 565 sp->type = SRB_NVME_CMD; 566 sp->name = "nvme_cmd"; 567 sp->done = qla_nvme_sp_done; 568 sp->put_fn = qla_nvme_release_fcp_cmd_kref; 569 sp->qpair = qpair; 570 sp->vha = vha; 571 nvme = &sp->u.iocb_cmd; 572 nvme->u.nvme.desc = fd; 573 574 rval = qla2x00_start_nvme_mq(sp); 575 if (rval != QLA_SUCCESS) { 576 ql_log(ql_log_warn, vha, 0x212d, 577 "qla2x00_start_nvme_mq failed = %d\n", rval); 578 wake_up(&sp->nvme_ls_waitq); 579 sp->priv = NULL; 580 priv->sp = NULL; 581 qla2xxx_rel_qpair_sp(sp->qpair, sp); 582 } 583 584 return rval; 585 } 586 587 static void qla_nvme_localport_delete(struct nvme_fc_local_port *lport) 588 { 589 struct scsi_qla_host *vha = lport->private; 590 591 ql_log(ql_log_info, vha, 0x210f, 592 "localport delete of %p completed.\n", vha->nvme_local_port); 593 vha->nvme_local_port = NULL; 594 complete(&vha->nvme_del_done); 595 } 596 597 static void qla_nvme_remoteport_delete(struct nvme_fc_remote_port *rport) 598 { 599 fc_port_t *fcport; 600 struct qla_nvme_rport *qla_rport = rport->private; 601 602 fcport = qla_rport->fcport; 603 fcport->nvme_remote_port = NULL; 604 fcport->nvme_flag &= ~NVME_FLAG_REGISTERED; 605 fcport->nvme_flag &= ~NVME_FLAG_DELETING; 606 ql_log(ql_log_info, fcport->vha, 0x2110, 607 "remoteport_delete of %p %8phN completed.\n", 608 fcport, fcport->port_name); 609 complete(&fcport->nvme_del_done); 610 } 611 612 static struct nvme_fc_port_template qla_nvme_fc_transport = { 613 .localport_delete = qla_nvme_localport_delete, 614 .remoteport_delete = qla_nvme_remoteport_delete, 615 .create_queue = qla_nvme_alloc_queue, 616 .delete_queue = NULL, 617 .ls_req = qla_nvme_ls_req, 618 .ls_abort = qla_nvme_ls_abort, 619 .fcp_io = qla_nvme_post_cmd, 620 .fcp_abort = qla_nvme_fcp_abort, 621 .max_hw_queues = 8, 622 .max_sgl_segments = 1024, 623 .max_dif_sgl_segments = 64, 624 .dma_boundary = 0xFFFFFFFF, 625 .local_priv_sz = 8, 626 .remote_priv_sz = sizeof(struct qla_nvme_rport), 627 .lsrqst_priv_sz = sizeof(struct nvme_private), 628 .fcprqst_priv_sz = sizeof(struct nvme_private), 629 }; 630 631 void qla_nvme_unregister_remote_port(struct fc_port *fcport) 632 { 633 int ret; 634 635 if (!IS_ENABLED(CONFIG_NVME_FC)) 636 return; 637 638 ql_log(ql_log_warn, NULL, 0x2112, 639 "%s: unregister remoteport on %p %8phN\n", 640 __func__, fcport, fcport->port_name); 641 642 if (test_bit(PFLG_DRIVER_REMOVING, &fcport->vha->pci_flags)) 643 nvme_fc_set_remoteport_devloss(fcport->nvme_remote_port, 0); 644 645 init_completion(&fcport->nvme_del_done); 646 ret = nvme_fc_unregister_remoteport(fcport->nvme_remote_port); 647 if (ret) 648 ql_log(ql_log_info, fcport->vha, 0x2114, 649 "%s: Failed to unregister nvme_remote_port (%d)\n", 650 __func__, ret); 651 wait_for_completion(&fcport->nvme_del_done); 652 } 653 654 void qla_nvme_delete(struct scsi_qla_host *vha) 655 { 656 int nv_ret; 657 658 if (!IS_ENABLED(CONFIG_NVME_FC)) 659 return; 660 661 if (vha->nvme_local_port) { 662 init_completion(&vha->nvme_del_done); 663 ql_log(ql_log_info, vha, 0x2116, 664 "unregister localport=%p\n", 665 vha->nvme_local_port); 666 nv_ret = nvme_fc_unregister_localport(vha->nvme_local_port); 667 if (nv_ret) 668 ql_log(ql_log_info, vha, 0x2115, 669 "Unregister of localport failed\n"); 670 else 671 wait_for_completion(&vha->nvme_del_done); 672 } 673 } 674 675 int qla_nvme_register_hba(struct scsi_qla_host *vha) 676 { 677 struct nvme_fc_port_template *tmpl; 678 struct qla_hw_data *ha; 679 struct nvme_fc_port_info pinfo; 680 int ret = EINVAL; 681 682 if (!IS_ENABLED(CONFIG_NVME_FC)) 683 return ret; 684 685 ha = vha->hw; 686 tmpl = &qla_nvme_fc_transport; 687 688 WARN_ON(vha->nvme_local_port); 689 WARN_ON(ha->max_req_queues < 3); 690 691 qla_nvme_fc_transport.max_hw_queues = 692 min((uint8_t)(qla_nvme_fc_transport.max_hw_queues), 693 (uint8_t)(ha->max_req_queues - 2)); 694 695 pinfo.node_name = wwn_to_u64(vha->node_name); 696 pinfo.port_name = wwn_to_u64(vha->port_name); 697 pinfo.port_role = FC_PORT_ROLE_NVME_INITIATOR; 698 pinfo.port_id = vha->d_id.b24; 699 700 ql_log(ql_log_info, vha, 0xffff, 701 "register_localport: host-traddr=nn-0x%llx:pn-0x%llx on portID:%x\n", 702 pinfo.node_name, pinfo.port_name, pinfo.port_id); 703 qla_nvme_fc_transport.dma_boundary = vha->host->dma_boundary; 704 705 ret = nvme_fc_register_localport(&pinfo, tmpl, 706 get_device(&ha->pdev->dev), &vha->nvme_local_port); 707 if (ret) { 708 ql_log(ql_log_warn, vha, 0xffff, 709 "register_localport failed: ret=%x\n", ret); 710 } else { 711 vha->nvme_local_port->private = vha; 712 } 713 714 return ret; 715 } 716