1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * QLogic Fibre Channel HBA Driver 4 * Copyright (c) 2003-2017 QLogic Corporation 5 */ 6 #include "qla_nvme.h" 7 #include <linux/scatterlist.h> 8 #include <linux/delay.h> 9 #include <linux/nvme.h> 10 #include <linux/nvme-fc.h> 11 12 static struct nvme_fc_port_template qla_nvme_fc_transport; 13 14 int qla_nvme_register_remote(struct scsi_qla_host *vha, struct fc_port *fcport) 15 { 16 struct qla_nvme_rport *rport; 17 struct nvme_fc_port_info req; 18 int ret; 19 20 if (!IS_ENABLED(CONFIG_NVME_FC)) 21 return 0; 22 23 if (!vha->flags.nvme_enabled) { 24 ql_log(ql_log_info, vha, 0x2100, 25 "%s: Not registering target since Host NVME is not enabled\n", 26 __func__); 27 return 0; 28 } 29 30 if (!vha->nvme_local_port && qla_nvme_register_hba(vha)) 31 return 0; 32 33 if (!(fcport->nvme_prli_service_param & 34 (NVME_PRLI_SP_TARGET | NVME_PRLI_SP_DISCOVERY)) || 35 (fcport->nvme_flag & NVME_FLAG_REGISTERED)) 36 return 0; 37 38 fcport->nvme_flag &= ~NVME_FLAG_RESETTING; 39 40 memset(&req, 0, sizeof(struct nvme_fc_port_info)); 41 req.port_name = wwn_to_u64(fcport->port_name); 42 req.node_name = wwn_to_u64(fcport->node_name); 43 req.port_role = 0; 44 req.dev_loss_tmo = 0; 45 46 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_INITIATOR) 47 req.port_role = FC_PORT_ROLE_NVME_INITIATOR; 48 49 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_TARGET) 50 req.port_role |= FC_PORT_ROLE_NVME_TARGET; 51 52 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_DISCOVERY) 53 req.port_role |= FC_PORT_ROLE_NVME_DISCOVERY; 54 55 req.port_id = fcport->d_id.b24; 56 57 ql_log(ql_log_info, vha, 0x2102, 58 "%s: traddr=nn-0x%016llx:pn-0x%016llx PortID:%06x\n", 59 __func__, req.node_name, req.port_name, 60 req.port_id); 61 62 ret = nvme_fc_register_remoteport(vha->nvme_local_port, &req, 63 &fcport->nvme_remote_port); 64 if (ret) { 65 ql_log(ql_log_warn, vha, 0x212e, 66 "Failed to register remote port. Transport returned %d\n", 67 ret); 68 return ret; 69 } 70 71 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_SLER) 72 ql_log(ql_log_info, vha, 0x212a, 73 "PortID:%06x Supports SLER\n", req.port_id); 74 75 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_PI_CTRL) 76 ql_log(ql_log_info, vha, 0x212b, 77 "PortID:%06x Supports PI control\n", req.port_id); 78 79 rport = fcport->nvme_remote_port->private; 80 rport->fcport = fcport; 81 82 fcport->nvme_flag |= NVME_FLAG_REGISTERED; 83 return 0; 84 } 85 86 /* Allocate a queue for NVMe traffic */ 87 static int qla_nvme_alloc_queue(struct nvme_fc_local_port *lport, 88 unsigned int qidx, u16 qsize, void **handle) 89 { 90 struct scsi_qla_host *vha; 91 struct qla_hw_data *ha; 92 struct qla_qpair *qpair; 93 94 if (!qidx) 95 qidx++; 96 97 vha = (struct scsi_qla_host *)lport->private; 98 ha = vha->hw; 99 100 ql_log(ql_log_info, vha, 0x2104, 101 "%s: handle %p, idx =%d, qsize %d\n", 102 __func__, handle, qidx, qsize); 103 104 if (qidx > qla_nvme_fc_transport.max_hw_queues) { 105 ql_log(ql_log_warn, vha, 0x212f, 106 "%s: Illegal qidx=%d. Max=%d\n", 107 __func__, qidx, qla_nvme_fc_transport.max_hw_queues); 108 return -EINVAL; 109 } 110 111 if (ha->queue_pair_map[qidx]) { 112 *handle = ha->queue_pair_map[qidx]; 113 ql_log(ql_log_info, vha, 0x2121, 114 "Returning existing qpair of %p for idx=%x\n", 115 *handle, qidx); 116 return 0; 117 } 118 119 qpair = qla2xxx_create_qpair(vha, 5, vha->vp_idx, true); 120 if (qpair == NULL) { 121 ql_log(ql_log_warn, vha, 0x2122, 122 "Failed to allocate qpair\n"); 123 return -EINVAL; 124 } 125 *handle = qpair; 126 127 return 0; 128 } 129 130 static void qla_nvme_release_fcp_cmd_kref(struct kref *kref) 131 { 132 struct srb *sp = container_of(kref, struct srb, cmd_kref); 133 struct nvme_private *priv = (struct nvme_private *)sp->priv; 134 struct nvmefc_fcp_req *fd; 135 struct srb_iocb *nvme; 136 unsigned long flags; 137 138 if (!priv) 139 goto out; 140 141 nvme = &sp->u.iocb_cmd; 142 fd = nvme->u.nvme.desc; 143 144 spin_lock_irqsave(&priv->cmd_lock, flags); 145 priv->sp = NULL; 146 sp->priv = NULL; 147 if (priv->comp_status == QLA_SUCCESS) { 148 fd->rcv_rsplen = le16_to_cpu(nvme->u.nvme.rsp_pyld_len); 149 fd->status = NVME_SC_SUCCESS; 150 } else { 151 fd->rcv_rsplen = 0; 152 fd->transferred_length = 0; 153 fd->status = NVME_SC_INTERNAL; 154 } 155 spin_unlock_irqrestore(&priv->cmd_lock, flags); 156 157 fd->done(fd); 158 out: 159 qla2xxx_rel_qpair_sp(sp->qpair, sp); 160 } 161 162 static void qla_nvme_release_ls_cmd_kref(struct kref *kref) 163 { 164 struct srb *sp = container_of(kref, struct srb, cmd_kref); 165 struct nvme_private *priv = (struct nvme_private *)sp->priv; 166 struct nvmefc_ls_req *fd; 167 unsigned long flags; 168 169 if (!priv) 170 goto out; 171 172 spin_lock_irqsave(&priv->cmd_lock, flags); 173 priv->sp = NULL; 174 sp->priv = NULL; 175 spin_unlock_irqrestore(&priv->cmd_lock, flags); 176 177 fd = priv->fd; 178 fd->done(fd, priv->comp_status); 179 out: 180 qla2x00_rel_sp(sp); 181 } 182 183 static void qla_nvme_ls_complete(struct work_struct *work) 184 { 185 struct nvme_private *priv = 186 container_of(work, struct nvme_private, ls_work); 187 188 kref_put(&priv->sp->cmd_kref, qla_nvme_release_ls_cmd_kref); 189 } 190 191 static void qla_nvme_sp_ls_done(srb_t *sp, int res) 192 { 193 struct nvme_private *priv = sp->priv; 194 195 if (WARN_ON_ONCE(kref_read(&sp->cmd_kref) == 0)) 196 return; 197 198 if (res) 199 res = -EINVAL; 200 201 priv->comp_status = res; 202 INIT_WORK(&priv->ls_work, qla_nvme_ls_complete); 203 schedule_work(&priv->ls_work); 204 } 205 206 /* it assumed that QPair lock is held. */ 207 static void qla_nvme_sp_done(srb_t *sp, int res) 208 { 209 struct nvme_private *priv = sp->priv; 210 211 priv->comp_status = res; 212 kref_put(&sp->cmd_kref, qla_nvme_release_fcp_cmd_kref); 213 214 return; 215 } 216 217 static void qla_nvme_abort_work(struct work_struct *work) 218 { 219 struct nvme_private *priv = 220 container_of(work, struct nvme_private, abort_work); 221 srb_t *sp = priv->sp; 222 fc_port_t *fcport = sp->fcport; 223 struct qla_hw_data *ha = fcport->vha->hw; 224 int rval; 225 226 ql_dbg(ql_dbg_io, fcport->vha, 0xffff, 227 "%s called for sp=%p, hndl=%x on fcport=%p deleted=%d\n", 228 __func__, sp, sp->handle, fcport, fcport->deleted); 229 230 if (!ha->flags.fw_started || fcport->deleted) 231 goto out; 232 233 if (ha->flags.host_shutting_down) { 234 ql_log(ql_log_info, sp->fcport->vha, 0xffff, 235 "%s Calling done on sp: %p, type: 0x%x\n", 236 __func__, sp, sp->type); 237 sp->done(sp, 0); 238 goto out; 239 } 240 241 rval = ha->isp_ops->abort_command(sp); 242 243 ql_dbg(ql_dbg_io, fcport->vha, 0x212b, 244 "%s: %s command for sp=%p, handle=%x on fcport=%p rval=%x\n", 245 __func__, (rval != QLA_SUCCESS) ? "Failed to abort" : "Aborted", 246 sp, sp->handle, fcport, rval); 247 248 out: 249 /* kref_get was done before work was schedule. */ 250 kref_put(&sp->cmd_kref, sp->put_fn); 251 } 252 253 static void qla_nvme_ls_abort(struct nvme_fc_local_port *lport, 254 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd) 255 { 256 struct nvme_private *priv = fd->private; 257 unsigned long flags; 258 259 spin_lock_irqsave(&priv->cmd_lock, flags); 260 if (!priv->sp) { 261 spin_unlock_irqrestore(&priv->cmd_lock, flags); 262 return; 263 } 264 265 if (!kref_get_unless_zero(&priv->sp->cmd_kref)) { 266 spin_unlock_irqrestore(&priv->cmd_lock, flags); 267 return; 268 } 269 spin_unlock_irqrestore(&priv->cmd_lock, flags); 270 271 INIT_WORK(&priv->abort_work, qla_nvme_abort_work); 272 schedule_work(&priv->abort_work); 273 } 274 275 static int qla_nvme_ls_req(struct nvme_fc_local_port *lport, 276 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd) 277 { 278 struct qla_nvme_rport *qla_rport = rport->private; 279 fc_port_t *fcport = qla_rport->fcport; 280 struct srb_iocb *nvme; 281 struct nvme_private *priv = fd->private; 282 struct scsi_qla_host *vha; 283 int rval = QLA_FUNCTION_FAILED; 284 struct qla_hw_data *ha; 285 srb_t *sp; 286 287 288 if (!fcport || (fcport && fcport->deleted)) 289 return rval; 290 291 vha = fcport->vha; 292 ha = vha->hw; 293 294 if (!ha->flags.fw_started) 295 return rval; 296 297 /* Alloc SRB structure */ 298 sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC); 299 if (!sp) 300 return rval; 301 302 sp->type = SRB_NVME_LS; 303 sp->name = "nvme_ls"; 304 sp->done = qla_nvme_sp_ls_done; 305 sp->put_fn = qla_nvme_release_ls_cmd_kref; 306 sp->priv = priv; 307 priv->sp = sp; 308 kref_init(&sp->cmd_kref); 309 spin_lock_init(&priv->cmd_lock); 310 nvme = &sp->u.iocb_cmd; 311 priv->fd = fd; 312 nvme->u.nvme.desc = fd; 313 nvme->u.nvme.dir = 0; 314 nvme->u.nvme.dl = 0; 315 nvme->u.nvme.cmd_len = fd->rqstlen; 316 nvme->u.nvme.rsp_len = fd->rsplen; 317 nvme->u.nvme.rsp_dma = fd->rspdma; 318 nvme->u.nvme.timeout_sec = fd->timeout; 319 nvme->u.nvme.cmd_dma = dma_map_single(&ha->pdev->dev, fd->rqstaddr, 320 fd->rqstlen, DMA_TO_DEVICE); 321 dma_sync_single_for_device(&ha->pdev->dev, nvme->u.nvme.cmd_dma, 322 fd->rqstlen, DMA_TO_DEVICE); 323 324 rval = qla2x00_start_sp(sp); 325 if (rval != QLA_SUCCESS) { 326 ql_log(ql_log_warn, vha, 0x700e, 327 "qla2x00_start_sp failed = %d\n", rval); 328 wake_up(&sp->nvme_ls_waitq); 329 sp->priv = NULL; 330 priv->sp = NULL; 331 qla2x00_rel_sp(sp); 332 return rval; 333 } 334 335 return rval; 336 } 337 338 static void qla_nvme_fcp_abort(struct nvme_fc_local_port *lport, 339 struct nvme_fc_remote_port *rport, void *hw_queue_handle, 340 struct nvmefc_fcp_req *fd) 341 { 342 struct nvme_private *priv = fd->private; 343 unsigned long flags; 344 345 spin_lock_irqsave(&priv->cmd_lock, flags); 346 if (!priv->sp) { 347 spin_unlock_irqrestore(&priv->cmd_lock, flags); 348 return; 349 } 350 if (!kref_get_unless_zero(&priv->sp->cmd_kref)) { 351 spin_unlock_irqrestore(&priv->cmd_lock, flags); 352 return; 353 } 354 spin_unlock_irqrestore(&priv->cmd_lock, flags); 355 356 INIT_WORK(&priv->abort_work, qla_nvme_abort_work); 357 schedule_work(&priv->abort_work); 358 } 359 360 static inline int qla2x00_start_nvme_mq(srb_t *sp) 361 { 362 unsigned long flags; 363 uint32_t *clr_ptr; 364 uint32_t handle; 365 struct cmd_nvme *cmd_pkt; 366 uint16_t cnt, i; 367 uint16_t req_cnt; 368 uint16_t tot_dsds; 369 uint16_t avail_dsds; 370 struct dsd64 *cur_dsd; 371 struct req_que *req = NULL; 372 struct scsi_qla_host *vha = sp->fcport->vha; 373 struct qla_hw_data *ha = vha->hw; 374 struct qla_qpair *qpair = sp->qpair; 375 struct srb_iocb *nvme = &sp->u.iocb_cmd; 376 struct scatterlist *sgl, *sg; 377 struct nvmefc_fcp_req *fd = nvme->u.nvme.desc; 378 struct nvme_fc_cmd_iu *cmd = fd->cmdaddr; 379 uint32_t rval = QLA_SUCCESS; 380 381 /* Setup qpair pointers */ 382 req = qpair->req; 383 tot_dsds = fd->sg_cnt; 384 385 /* Acquire qpair specific lock */ 386 spin_lock_irqsave(&qpair->qp_lock, flags); 387 388 handle = qla2xxx_get_next_handle(req); 389 if (handle == 0) { 390 rval = -EBUSY; 391 goto queuing_error; 392 } 393 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 394 if (req->cnt < (req_cnt + 2)) { 395 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr : 396 rd_reg_dword_relaxed(req->req_q_out); 397 398 if (req->ring_index < cnt) 399 req->cnt = cnt - req->ring_index; 400 else 401 req->cnt = req->length - (req->ring_index - cnt); 402 403 if (req->cnt < (req_cnt + 2)){ 404 rval = -EBUSY; 405 goto queuing_error; 406 } 407 } 408 409 if (unlikely(!fd->sqid)) { 410 if (cmd->sqe.common.opcode == nvme_admin_async_event) { 411 nvme->u.nvme.aen_op = 1; 412 atomic_inc(&ha->nvme_active_aen_cnt); 413 } 414 } 415 416 /* Build command packet. */ 417 req->current_outstanding_cmd = handle; 418 req->outstanding_cmds[handle] = sp; 419 sp->handle = handle; 420 req->cnt -= req_cnt; 421 422 cmd_pkt = (struct cmd_nvme *)req->ring_ptr; 423 cmd_pkt->handle = make_handle(req->id, handle); 424 425 /* Zero out remaining portion of packet. */ 426 clr_ptr = (uint32_t *)cmd_pkt + 2; 427 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 428 429 cmd_pkt->entry_status = 0; 430 431 /* Update entry type to indicate Command NVME IOCB */ 432 cmd_pkt->entry_type = COMMAND_NVME; 433 434 /* No data transfer how do we check buffer len == 0?? */ 435 if (fd->io_dir == NVMEFC_FCP_READ) { 436 cmd_pkt->control_flags = cpu_to_le16(CF_READ_DATA); 437 qpair->counters.input_bytes += fd->payload_length; 438 qpair->counters.input_requests++; 439 } else if (fd->io_dir == NVMEFC_FCP_WRITE) { 440 cmd_pkt->control_flags = cpu_to_le16(CF_WRITE_DATA); 441 if ((vha->flags.nvme_first_burst) && 442 (sp->fcport->nvme_prli_service_param & 443 NVME_PRLI_SP_FIRST_BURST)) { 444 if ((fd->payload_length <= 445 sp->fcport->nvme_first_burst_size) || 446 (sp->fcport->nvme_first_burst_size == 0)) 447 cmd_pkt->control_flags |= 448 cpu_to_le16(CF_NVME_FIRST_BURST_ENABLE); 449 } 450 qpair->counters.output_bytes += fd->payload_length; 451 qpair->counters.output_requests++; 452 } else if (fd->io_dir == 0) { 453 cmd_pkt->control_flags = 0; 454 } 455 /* Set BIT_13 of control flags for Async event */ 456 if (vha->flags.nvme2_enabled && 457 cmd->sqe.common.opcode == nvme_admin_async_event) { 458 cmd_pkt->control_flags |= cpu_to_le16(CF_ADMIN_ASYNC_EVENT); 459 } 460 461 /* Set NPORT-ID */ 462 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 463 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 464 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 465 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 466 cmd_pkt->vp_index = sp->fcport->vha->vp_idx; 467 468 /* NVME RSP IU */ 469 cmd_pkt->nvme_rsp_dsd_len = cpu_to_le16(fd->rsplen); 470 put_unaligned_le64(fd->rspdma, &cmd_pkt->nvme_rsp_dseg_address); 471 472 /* NVME CNMD IU */ 473 cmd_pkt->nvme_cmnd_dseg_len = cpu_to_le16(fd->cmdlen); 474 cmd_pkt->nvme_cmnd_dseg_address = cpu_to_le64(fd->cmddma); 475 476 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 477 cmd_pkt->byte_count = cpu_to_le32(fd->payload_length); 478 479 /* One DSD is available in the Command Type NVME IOCB */ 480 avail_dsds = 1; 481 cur_dsd = &cmd_pkt->nvme_dsd; 482 sgl = fd->first_sgl; 483 484 /* Load data segments */ 485 for_each_sg(sgl, sg, tot_dsds, i) { 486 cont_a64_entry_t *cont_pkt; 487 488 /* Allocate additional continuation packets? */ 489 if (avail_dsds == 0) { 490 /* 491 * Five DSDs are available in the Continuation 492 * Type 1 IOCB. 493 */ 494 495 /* Adjust ring index */ 496 req->ring_index++; 497 if (req->ring_index == req->length) { 498 req->ring_index = 0; 499 req->ring_ptr = req->ring; 500 } else { 501 req->ring_ptr++; 502 } 503 cont_pkt = (cont_a64_entry_t *)req->ring_ptr; 504 put_unaligned_le32(CONTINUE_A64_TYPE, 505 &cont_pkt->entry_type); 506 507 cur_dsd = cont_pkt->dsd; 508 avail_dsds = ARRAY_SIZE(cont_pkt->dsd); 509 } 510 511 append_dsd64(&cur_dsd, sg); 512 avail_dsds--; 513 } 514 515 /* Set total entry count. */ 516 cmd_pkt->entry_count = (uint8_t)req_cnt; 517 wmb(); 518 519 /* Adjust ring index. */ 520 req->ring_index++; 521 if (req->ring_index == req->length) { 522 req->ring_index = 0; 523 req->ring_ptr = req->ring; 524 } else { 525 req->ring_ptr++; 526 } 527 528 /* Set chip new ring index. */ 529 wrt_reg_dword(req->req_q_in, req->ring_index); 530 531 queuing_error: 532 spin_unlock_irqrestore(&qpair->qp_lock, flags); 533 return rval; 534 } 535 536 /* Post a command */ 537 static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport, 538 struct nvme_fc_remote_port *rport, void *hw_queue_handle, 539 struct nvmefc_fcp_req *fd) 540 { 541 fc_port_t *fcport; 542 struct srb_iocb *nvme; 543 struct scsi_qla_host *vha; 544 int rval; 545 srb_t *sp; 546 struct qla_qpair *qpair = hw_queue_handle; 547 struct nvme_private *priv = fd->private; 548 struct qla_nvme_rport *qla_rport = rport->private; 549 550 if (!priv) { 551 /* nvme association has been torn down */ 552 return -ENODEV; 553 } 554 555 fcport = qla_rport->fcport; 556 557 if (unlikely(!qpair || !fcport || fcport->deleted)) 558 return -EBUSY; 559 560 if (!(fcport->nvme_flag & NVME_FLAG_REGISTERED)) 561 return -ENODEV; 562 563 vha = fcport->vha; 564 565 if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) 566 return -EBUSY; 567 568 /* 569 * If we know the dev is going away while the transport is still sending 570 * IO's return busy back to stall the IO Q. This happens when the 571 * link goes away and fw hasn't notified us yet, but IO's are being 572 * returned. If the dev comes back quickly we won't exhaust the IO 573 * retry count at the core. 574 */ 575 if (fcport->nvme_flag & NVME_FLAG_RESETTING) 576 return -EBUSY; 577 578 /* Alloc SRB structure */ 579 sp = qla2xxx_get_qpair_sp(vha, qpair, fcport, GFP_ATOMIC); 580 if (!sp) 581 return -EBUSY; 582 583 init_waitqueue_head(&sp->nvme_ls_waitq); 584 kref_init(&sp->cmd_kref); 585 spin_lock_init(&priv->cmd_lock); 586 sp->priv = priv; 587 priv->sp = sp; 588 sp->type = SRB_NVME_CMD; 589 sp->name = "nvme_cmd"; 590 sp->done = qla_nvme_sp_done; 591 sp->put_fn = qla_nvme_release_fcp_cmd_kref; 592 sp->qpair = qpair; 593 sp->vha = vha; 594 nvme = &sp->u.iocb_cmd; 595 nvme->u.nvme.desc = fd; 596 597 rval = qla2x00_start_nvme_mq(sp); 598 if (rval != QLA_SUCCESS) { 599 ql_log(ql_log_warn, vha, 0x212d, 600 "qla2x00_start_nvme_mq failed = %d\n", rval); 601 wake_up(&sp->nvme_ls_waitq); 602 sp->priv = NULL; 603 priv->sp = NULL; 604 qla2xxx_rel_qpair_sp(sp->qpair, sp); 605 } 606 607 return rval; 608 } 609 610 static void qla_nvme_localport_delete(struct nvme_fc_local_port *lport) 611 { 612 struct scsi_qla_host *vha = lport->private; 613 614 ql_log(ql_log_info, vha, 0x210f, 615 "localport delete of %p completed.\n", vha->nvme_local_port); 616 vha->nvme_local_port = NULL; 617 complete(&vha->nvme_del_done); 618 } 619 620 static void qla_nvme_remoteport_delete(struct nvme_fc_remote_port *rport) 621 { 622 fc_port_t *fcport; 623 struct qla_nvme_rport *qla_rport = rport->private; 624 625 fcport = qla_rport->fcport; 626 fcport->nvme_remote_port = NULL; 627 fcport->nvme_flag &= ~NVME_FLAG_REGISTERED; 628 fcport->nvme_flag &= ~NVME_FLAG_DELETING; 629 ql_log(ql_log_info, fcport->vha, 0x2110, 630 "remoteport_delete of %p %8phN completed.\n", 631 fcport, fcport->port_name); 632 complete(&fcport->nvme_del_done); 633 } 634 635 static struct nvme_fc_port_template qla_nvme_fc_transport = { 636 .localport_delete = qla_nvme_localport_delete, 637 .remoteport_delete = qla_nvme_remoteport_delete, 638 .create_queue = qla_nvme_alloc_queue, 639 .delete_queue = NULL, 640 .ls_req = qla_nvme_ls_req, 641 .ls_abort = qla_nvme_ls_abort, 642 .fcp_io = qla_nvme_post_cmd, 643 .fcp_abort = qla_nvme_fcp_abort, 644 .max_hw_queues = 8, 645 .max_sgl_segments = 1024, 646 .max_dif_sgl_segments = 64, 647 .dma_boundary = 0xFFFFFFFF, 648 .local_priv_sz = 8, 649 .remote_priv_sz = sizeof(struct qla_nvme_rport), 650 .lsrqst_priv_sz = sizeof(struct nvme_private), 651 .fcprqst_priv_sz = sizeof(struct nvme_private), 652 }; 653 654 void qla_nvme_unregister_remote_port(struct fc_port *fcport) 655 { 656 int ret; 657 658 if (!IS_ENABLED(CONFIG_NVME_FC)) 659 return; 660 661 ql_log(ql_log_warn, NULL, 0x2112, 662 "%s: unregister remoteport on %p %8phN\n", 663 __func__, fcport, fcport->port_name); 664 665 if (test_bit(PFLG_DRIVER_REMOVING, &fcport->vha->pci_flags)) 666 nvme_fc_set_remoteport_devloss(fcport->nvme_remote_port, 0); 667 668 init_completion(&fcport->nvme_del_done); 669 ret = nvme_fc_unregister_remoteport(fcport->nvme_remote_port); 670 if (ret) 671 ql_log(ql_log_info, fcport->vha, 0x2114, 672 "%s: Failed to unregister nvme_remote_port (%d)\n", 673 __func__, ret); 674 wait_for_completion(&fcport->nvme_del_done); 675 } 676 677 void qla_nvme_delete(struct scsi_qla_host *vha) 678 { 679 int nv_ret; 680 681 if (!IS_ENABLED(CONFIG_NVME_FC)) 682 return; 683 684 if (vha->nvme_local_port) { 685 init_completion(&vha->nvme_del_done); 686 ql_log(ql_log_info, vha, 0x2116, 687 "unregister localport=%p\n", 688 vha->nvme_local_port); 689 nv_ret = nvme_fc_unregister_localport(vha->nvme_local_port); 690 if (nv_ret) 691 ql_log(ql_log_info, vha, 0x2115, 692 "Unregister of localport failed\n"); 693 else 694 wait_for_completion(&vha->nvme_del_done); 695 } 696 } 697 698 int qla_nvme_register_hba(struct scsi_qla_host *vha) 699 { 700 struct nvme_fc_port_template *tmpl; 701 struct qla_hw_data *ha; 702 struct nvme_fc_port_info pinfo; 703 int ret = -EINVAL; 704 705 if (!IS_ENABLED(CONFIG_NVME_FC)) 706 return ret; 707 708 ha = vha->hw; 709 tmpl = &qla_nvme_fc_transport; 710 711 WARN_ON(vha->nvme_local_port); 712 713 if (ha->max_req_queues < 3) { 714 if (!ha->flags.max_req_queue_warned) 715 ql_log(ql_log_info, vha, 0x2120, 716 "%s: Disabling FC-NVME due to lack of free queue pairs (%d).\n", 717 __func__, ha->max_req_queues); 718 ha->flags.max_req_queue_warned = 1; 719 return ret; 720 } 721 722 qla_nvme_fc_transport.max_hw_queues = 723 min((uint8_t)(qla_nvme_fc_transport.max_hw_queues), 724 (uint8_t)(ha->max_req_queues - 2)); 725 726 pinfo.node_name = wwn_to_u64(vha->node_name); 727 pinfo.port_name = wwn_to_u64(vha->port_name); 728 pinfo.port_role = FC_PORT_ROLE_NVME_INITIATOR; 729 pinfo.port_id = vha->d_id.b24; 730 731 ql_log(ql_log_info, vha, 0xffff, 732 "register_localport: host-traddr=nn-0x%llx:pn-0x%llx on portID:%x\n", 733 pinfo.node_name, pinfo.port_name, pinfo.port_id); 734 qla_nvme_fc_transport.dma_boundary = vha->host->dma_boundary; 735 736 ret = nvme_fc_register_localport(&pinfo, tmpl, 737 get_device(&ha->pdev->dev), &vha->nvme_local_port); 738 if (ret) { 739 ql_log(ql_log_warn, vha, 0xffff, 740 "register_localport failed: ret=%x\n", ret); 741 } else { 742 vha->nvme_local_port->private = vha; 743 } 744 745 return ret; 746 } 747