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 12static struct nvme_fc_port_template qla_nvme_fc_transport; 13 14int 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 (qla_nvme_register_hba(vha)) 31 return 0; 32 33 if (!vha->nvme_local_port) 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 fcport->nvme_flag &= ~NVME_FLAG_RESETTING; 42 43 memset(&req, 0, sizeof(struct nvme_fc_port_info)); 44 req.port_name = wwn_to_u64(fcport->port_name); 45 req.node_name = wwn_to_u64(fcport->node_name); 46 req.port_role = 0; 47 req.dev_loss_tmo = 0; 48 49 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_INITIATOR) 50 req.port_role = FC_PORT_ROLE_NVME_INITIATOR; 51 52 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_TARGET) 53 req.port_role |= FC_PORT_ROLE_NVME_TARGET; 54 55 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_DISCOVERY) 56 req.port_role |= FC_PORT_ROLE_NVME_DISCOVERY; 57 58 req.port_id = fcport->d_id.b24; 59 60 ql_log(ql_log_info, vha, 0x2102, 61 "%s: traddr=nn-0x%016llx:pn-0x%016llx PortID:%06x\n", 62 __func__, req.node_name, req.port_name, 63 req.port_id); 64 65 ret = nvme_fc_register_remoteport(vha->nvme_local_port, &req, 66 &fcport->nvme_remote_port); 67 if (ret) { 68 ql_log(ql_log_warn, vha, 0x212e, 69 "Failed to register remote port. Transport returned %d\n", 70 ret); 71 return ret; 72 } 73 74 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_SLER) 75 ql_log(ql_log_info, vha, 0x212a, 76 "PortID:%06x Supports SLER\n", req.port_id); 77 78 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_PI_CTRL) 79 ql_log(ql_log_info, vha, 0x212b, 80 "PortID:%06x Supports PI control\n", req.port_id); 81 82 rport = fcport->nvme_remote_port->private; 83 rport->fcport = fcport; 84 85 fcport->nvme_flag |= NVME_FLAG_REGISTERED; 86 return 0; 87} 88 89/* Allocate a queue for NVMe traffic */ 90static int qla_nvme_alloc_queue(struct nvme_fc_local_port *lport, 91 unsigned int qidx, u16 qsize, void **handle) 92{ 93 struct scsi_qla_host *vha; 94 struct qla_hw_data *ha; 95 struct qla_qpair *qpair; 96 97 /* Map admin queue and 1st IO queue to index 0 */ 98 if (qidx) 99 qidx--; 100 101 vha = (struct scsi_qla_host *)lport->private; 102 ha = vha->hw; 103 104 ql_log(ql_log_info, vha, 0x2104, 105 "%s: handle %p, idx =%d, qsize %d\n", 106 __func__, handle, qidx, qsize); 107 108 if (qidx > qla_nvme_fc_transport.max_hw_queues) { 109 ql_log(ql_log_warn, vha, 0x212f, 110 "%s: Illegal qidx=%d. Max=%d\n", 111 __func__, qidx, qla_nvme_fc_transport.max_hw_queues); 112 return -EINVAL; 113 } 114 115 /* Use base qpair if max_qpairs is 0 */ 116 if (!ha->max_qpairs) { 117 qpair = ha->base_qpair; 118 } else { 119 if (ha->queue_pair_map[qidx]) { 120 *handle = ha->queue_pair_map[qidx]; 121 ql_log(ql_log_info, vha, 0x2121, 122 "Returning existing qpair of %p for idx=%x\n", 123 *handle, qidx); 124 return 0; 125 } 126 127 qpair = qla2xxx_create_qpair(vha, 5, vha->vp_idx, true); 128 if (!qpair) { 129 ql_log(ql_log_warn, vha, 0x2122, 130 "Failed to allocate qpair\n"); 131 return -EINVAL; 132 } 133 } 134 *handle = qpair; 135 136 return 0; 137} 138 139static void qla_nvme_release_fcp_cmd_kref(struct kref *kref) 140{ 141 struct srb *sp = container_of(kref, struct srb, cmd_kref); 142 struct nvme_private *priv = (struct nvme_private *)sp->priv; 143 struct nvmefc_fcp_req *fd; 144 struct srb_iocb *nvme; 145 unsigned long flags; 146 147 if (!priv) 148 goto out; 149 150 nvme = &sp->u.iocb_cmd; 151 fd = nvme->u.nvme.desc; 152 153 spin_lock_irqsave(&priv->cmd_lock, flags); 154 priv->sp = NULL; 155 sp->priv = NULL; 156 if (priv->comp_status == QLA_SUCCESS) { 157 fd->rcv_rsplen = le16_to_cpu(nvme->u.nvme.rsp_pyld_len); 158 fd->status = NVME_SC_SUCCESS; 159 } else { 160 fd->rcv_rsplen = 0; 161 fd->transferred_length = 0; 162 fd->status = NVME_SC_INTERNAL; 163 } 164 spin_unlock_irqrestore(&priv->cmd_lock, flags); 165 166 fd->done(fd); 167out: 168 qla2xxx_rel_qpair_sp(sp->qpair, sp); 169} 170 171static void qla_nvme_release_ls_cmd_kref(struct kref *kref) 172{ 173 struct srb *sp = container_of(kref, struct srb, cmd_kref); 174 struct nvme_private *priv = (struct nvme_private *)sp->priv; 175 struct nvmefc_ls_req *fd; 176 unsigned long flags; 177 178 if (!priv) 179 goto out; 180 181 spin_lock_irqsave(&priv->cmd_lock, flags); 182 priv->sp = NULL; 183 sp->priv = NULL; 184 spin_unlock_irqrestore(&priv->cmd_lock, flags); 185 186 fd = priv->fd; 187 188 fd->done(fd, priv->comp_status); 189out: 190 qla2x00_rel_sp(sp); 191} 192 193static void qla_nvme_ls_complete(struct work_struct *work) 194{ 195 struct nvme_private *priv = 196 container_of(work, struct nvme_private, ls_work); 197 198 kref_put(&priv->sp->cmd_kref, qla_nvme_release_ls_cmd_kref); 199} 200 201static void qla_nvme_sp_ls_done(srb_t *sp, int res) 202{ 203 struct nvme_private *priv = sp->priv; 204 205 if (WARN_ON_ONCE(kref_read(&sp->cmd_kref) == 0)) 206 return; 207 208 if (res) 209 res = -EINVAL; 210 211 priv->comp_status = res; 212 INIT_WORK(&priv->ls_work, qla_nvme_ls_complete); 213 schedule_work(&priv->ls_work); 214} 215 216/* it assumed that QPair lock is held. */ 217static void qla_nvme_sp_done(srb_t *sp, int res) 218{ 219 struct nvme_private *priv = sp->priv; 220 221 priv->comp_status = res; 222 kref_put(&sp->cmd_kref, qla_nvme_release_fcp_cmd_kref); 223 224 return; 225} 226 227static void qla_nvme_abort_work(struct work_struct *work) 228{ 229 struct nvme_private *priv = 230 container_of(work, struct nvme_private, abort_work); 231 srb_t *sp = priv->sp; 232 fc_port_t *fcport = sp->fcport; 233 struct qla_hw_data *ha = fcport->vha->hw; 234 int rval; 235 236 ql_dbg(ql_dbg_io, fcport->vha, 0xffff, 237 "%s called for sp=%p, hndl=%x on fcport=%p deleted=%d\n", 238 __func__, sp, sp->handle, fcport, fcport->deleted); 239 240 if (!ha->flags.fw_started && fcport->deleted) 241 goto out; 242 243 if (ha->flags.host_shutting_down) { 244 ql_log(ql_log_info, sp->fcport->vha, 0xffff, 245 "%s Calling done on sp: %p, type: 0x%x\n", 246 __func__, sp, sp->type); 247 sp->done(sp, 0); 248 goto out; 249 } 250 251 rval = ha->isp_ops->abort_command(sp); 252 253 ql_dbg(ql_dbg_io, fcport->vha, 0x212b, 254 "%s: %s command for sp=%p, handle=%x on fcport=%p rval=%x\n", 255 __func__, (rval != QLA_SUCCESS) ? "Failed to abort" : "Aborted", 256 sp, sp->handle, fcport, rval); 257 258out: 259 /* kref_get was done before work was schedule. */ 260 kref_put(&sp->cmd_kref, sp->put_fn); 261} 262 263static void qla_nvme_ls_abort(struct nvme_fc_local_port *lport, 264 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd) 265{ 266 struct nvme_private *priv = fd->private; 267 unsigned long flags; 268 269 spin_lock_irqsave(&priv->cmd_lock, flags); 270 if (!priv->sp) { 271 spin_unlock_irqrestore(&priv->cmd_lock, flags); 272 return; 273 } 274 275 if (!kref_get_unless_zero(&priv->sp->cmd_kref)) { 276 spin_unlock_irqrestore(&priv->cmd_lock, flags); 277 return; 278 } 279 spin_unlock_irqrestore(&priv->cmd_lock, flags); 280 281 INIT_WORK(&priv->abort_work, qla_nvme_abort_work); 282 schedule_work(&priv->abort_work); 283} 284 285static int qla_nvme_ls_req(struct nvme_fc_local_port *lport, 286 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd) 287{ 288 struct qla_nvme_rport *qla_rport = rport->private; 289 fc_port_t *fcport = qla_rport->fcport; 290 struct srb_iocb *nvme; 291 struct nvme_private *priv = fd->private; 292 struct scsi_qla_host *vha; 293 int rval = QLA_FUNCTION_FAILED; 294 struct qla_hw_data *ha; 295 srb_t *sp; 296 297 298 if (!fcport || (fcport && fcport->deleted)) 299 return rval; 300 301 vha = fcport->vha; 302 ha = vha->hw; 303 304 if (!ha->flags.fw_started) 305 return rval; 306 307 /* Alloc SRB structure */ 308 sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC); 309 if (!sp) 310 return rval; 311 312 sp->type = SRB_NVME_LS; 313 sp->name = "nvme_ls"; 314 sp->done = qla_nvme_sp_ls_done; 315 sp->put_fn = qla_nvme_release_ls_cmd_kref; 316 sp->priv = priv; 317 priv->sp = sp; 318 kref_init(&sp->cmd_kref); 319 spin_lock_init(&priv->cmd_lock); 320 nvme = &sp->u.iocb_cmd; 321 priv->fd = fd; 322 nvme->u.nvme.desc = fd; 323 nvme->u.nvme.dir = 0; 324 nvme->u.nvme.dl = 0; 325 nvme->u.nvme.cmd_len = fd->rqstlen; 326 nvme->u.nvme.rsp_len = fd->rsplen; 327 nvme->u.nvme.rsp_dma = fd->rspdma; 328 nvme->u.nvme.timeout_sec = fd->timeout; 329 nvme->u.nvme.cmd_dma = fd->rqstdma; 330 dma_sync_single_for_device(&ha->pdev->dev, nvme->u.nvme.cmd_dma, 331 fd->rqstlen, DMA_TO_DEVICE); 332 333 rval = qla2x00_start_sp(sp); 334 if (rval != QLA_SUCCESS) { 335 ql_log(ql_log_warn, vha, 0x700e, 336 "qla2x00_start_sp failed = %d\n", rval); 337 sp->priv = NULL; 338 priv->sp = NULL; 339 qla2x00_rel_sp(sp); 340 return rval; 341 } 342 343 return rval; 344} 345 346static void qla_nvme_fcp_abort(struct nvme_fc_local_port *lport, 347 struct nvme_fc_remote_port *rport, void *hw_queue_handle, 348 struct nvmefc_fcp_req *fd) 349{ 350 struct nvme_private *priv = fd->private; 351 unsigned long flags; 352 353 spin_lock_irqsave(&priv->cmd_lock, flags); 354 if (!priv->sp) { 355 spin_unlock_irqrestore(&priv->cmd_lock, flags); 356 return; 357 } 358 if (!kref_get_unless_zero(&priv->sp->cmd_kref)) { 359 spin_unlock_irqrestore(&priv->cmd_lock, flags); 360 return; 361 } 362 spin_unlock_irqrestore(&priv->cmd_lock, flags); 363 364 INIT_WORK(&priv->abort_work, qla_nvme_abort_work); 365 schedule_work(&priv->abort_work); 366} 367 368static inline int qla2x00_start_nvme_mq(srb_t *sp) 369{ 370 unsigned long flags; 371 uint32_t *clr_ptr; 372 uint32_t handle; 373 struct cmd_nvme *cmd_pkt; 374 uint16_t cnt, i; 375 uint16_t req_cnt; 376 uint16_t tot_dsds; 377 uint16_t avail_dsds; 378 struct dsd64 *cur_dsd; 379 struct req_que *req = NULL; 380 struct scsi_qla_host *vha = sp->fcport->vha; 381 struct qla_hw_data *ha = vha->hw; 382 struct qla_qpair *qpair = sp->qpair; 383 struct srb_iocb *nvme = &sp->u.iocb_cmd; 384 struct scatterlist *sgl, *sg; 385 struct nvmefc_fcp_req *fd = nvme->u.nvme.desc; 386 struct nvme_fc_cmd_iu *cmd = fd->cmdaddr; 387 uint32_t rval = QLA_SUCCESS; 388 389 /* Setup qpair pointers */ 390 req = qpair->req; 391 tot_dsds = fd->sg_cnt; 392 393 /* Acquire qpair specific lock */ 394 spin_lock_irqsave(&qpair->qp_lock, flags); 395 396 handle = qla2xxx_get_next_handle(req); 397 if (handle == 0) { 398 rval = -EBUSY; 399 goto queuing_error; 400 } 401 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 402 if (req->cnt < (req_cnt + 2)) { 403 if (IS_SHADOW_REG_CAPABLE(ha)) { 404 cnt = *req->out_ptr; 405 } else { 406 cnt = rd_reg_dword_relaxed(req->req_q_out); 407 if (qla2x00_check_reg16_for_disconnect(vha, cnt)) 408 goto queuing_error; 409 } 410 411 if (req->ring_index < cnt) 412 req->cnt = cnt - req->ring_index; 413 else 414 req->cnt = req->length - (req->ring_index - cnt); 415 416 if (req->cnt < (req_cnt + 2)){ 417 rval = -EBUSY; 418 goto queuing_error; 419 } 420 } 421 422 if (unlikely(!fd->sqid)) { 423 if (cmd->sqe.common.opcode == nvme_admin_async_event) { 424 nvme->u.nvme.aen_op = 1; 425 atomic_inc(&ha->nvme_active_aen_cnt); 426 } 427 } 428 429 /* Build command packet. */ 430 req->current_outstanding_cmd = handle; 431 req->outstanding_cmds[handle] = sp; 432 sp->handle = handle; 433 req->cnt -= req_cnt; 434 435 cmd_pkt = (struct cmd_nvme *)req->ring_ptr; 436 cmd_pkt->handle = make_handle(req->id, handle); 437 438 /* Zero out remaining portion of packet. */ 439 clr_ptr = (uint32_t *)cmd_pkt + 2; 440 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 441 442 cmd_pkt->entry_status = 0; 443 444 /* Update entry type to indicate Command NVME IOCB */ 445 cmd_pkt->entry_type = COMMAND_NVME; 446 447 /* No data transfer how do we check buffer len == 0?? */ 448 if (fd->io_dir == NVMEFC_FCP_READ) { 449 cmd_pkt->control_flags = cpu_to_le16(CF_READ_DATA); 450 qpair->counters.input_bytes += fd->payload_length; 451 qpair->counters.input_requests++; 452 } else if (fd->io_dir == NVMEFC_FCP_WRITE) { 453 cmd_pkt->control_flags = cpu_to_le16(CF_WRITE_DATA); 454 if ((vha->flags.nvme_first_burst) && 455 (sp->fcport->nvme_prli_service_param & 456 NVME_PRLI_SP_FIRST_BURST)) { 457 if ((fd->payload_length <= 458 sp->fcport->nvme_first_burst_size) || 459 (sp->fcport->nvme_first_burst_size == 0)) 460 cmd_pkt->control_flags |= 461 cpu_to_le16(CF_NVME_FIRST_BURST_ENABLE); 462 } 463 qpair->counters.output_bytes += fd->payload_length; 464 qpair->counters.output_requests++; 465 } else if (fd->io_dir == 0) { 466 cmd_pkt->control_flags = 0; 467 } 468 /* Set BIT_13 of control flags for Async event */ 469 if (vha->flags.nvme2_enabled && 470 cmd->sqe.common.opcode == nvme_admin_async_event) { 471 cmd_pkt->control_flags |= cpu_to_le16(CF_ADMIN_ASYNC_EVENT); 472 } 473 474 /* Set NPORT-ID */ 475 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 476 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 477 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 478 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 479 cmd_pkt->vp_index = sp->fcport->vha->vp_idx; 480 481 /* NVME RSP IU */ 482 cmd_pkt->nvme_rsp_dsd_len = cpu_to_le16(fd->rsplen); 483 put_unaligned_le64(fd->rspdma, &cmd_pkt->nvme_rsp_dseg_address); 484 485 /* NVME CNMD IU */ 486 cmd_pkt->nvme_cmnd_dseg_len = cpu_to_le16(fd->cmdlen); 487 cmd_pkt->nvme_cmnd_dseg_address = cpu_to_le64(fd->cmddma); 488 489 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 490 cmd_pkt->byte_count = cpu_to_le32(fd->payload_length); 491 492 /* One DSD is available in the Command Type NVME IOCB */ 493 avail_dsds = 1; 494 cur_dsd = &cmd_pkt->nvme_dsd; 495 sgl = fd->first_sgl; 496 497 /* Load data segments */ 498 for_each_sg(sgl, sg, tot_dsds, i) { 499 cont_a64_entry_t *cont_pkt; 500 501 /* Allocate additional continuation packets? */ 502 if (avail_dsds == 0) { 503 /* 504 * Five DSDs are available in the Continuation 505 * Type 1 IOCB. 506 */ 507 508 /* Adjust ring index */ 509 req->ring_index++; 510 if (req->ring_index == req->length) { 511 req->ring_index = 0; 512 req->ring_ptr = req->ring; 513 } else { 514 req->ring_ptr++; 515 } 516 cont_pkt = (cont_a64_entry_t *)req->ring_ptr; 517 put_unaligned_le32(CONTINUE_A64_TYPE, 518 &cont_pkt->entry_type); 519 520 cur_dsd = cont_pkt->dsd; 521 avail_dsds = ARRAY_SIZE(cont_pkt->dsd); 522 } 523 524 append_dsd64(&cur_dsd, sg); 525 avail_dsds--; 526 } 527 528 /* Set total entry count. */ 529 cmd_pkt->entry_count = (uint8_t)req_cnt; 530 wmb(); 531 532 /* Adjust ring index. */ 533 req->ring_index++; 534 if (req->ring_index == req->length) { 535 req->ring_index = 0; 536 req->ring_ptr = req->ring; 537 } else { 538 req->ring_ptr++; 539 } 540 541 /* Set chip new ring index. */ 542 wrt_reg_dword(req->req_q_in, req->ring_index); 543 544queuing_error: 545 spin_unlock_irqrestore(&qpair->qp_lock, flags); 546 547 return rval; 548} 549 550/* Post a command */ 551static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport, 552 struct nvme_fc_remote_port *rport, void *hw_queue_handle, 553 struct nvmefc_fcp_req *fd) 554{ 555 fc_port_t *fcport; 556 struct srb_iocb *nvme; 557 struct scsi_qla_host *vha; 558 int rval; 559 srb_t *sp; 560 struct qla_qpair *qpair = hw_queue_handle; 561 struct nvme_private *priv = fd->private; 562 struct qla_nvme_rport *qla_rport = rport->private; 563 564 if (!priv) { 565 /* nvme association has been torn down */ 566 return -ENODEV; 567 } 568 569 fcport = qla_rport->fcport; 570 571 if (!qpair || !fcport) 572 return -ENODEV; 573 574 if (!qpair->fw_started || fcport->deleted) 575 return -EBUSY; 576 577 vha = fcport->vha; 578 579 if (!(fcport->nvme_flag & NVME_FLAG_REGISTERED)) 580 return -ENODEV; 581 582 if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) || 583 (qpair && !qpair->fw_started) || fcport->deleted) 584 return -EBUSY; 585 586 /* 587 * If we know the dev is going away while the transport is still sending 588 * IO's return busy back to stall the IO Q. This happens when the 589 * link goes away and fw hasn't notified us yet, but IO's are being 590 * returned. If the dev comes back quickly we won't exhaust the IO 591 * retry count at the core. 592 */ 593 if (fcport->nvme_flag & NVME_FLAG_RESETTING) 594 return -EBUSY; 595 596 /* Alloc SRB structure */ 597 sp = qla2xxx_get_qpair_sp(vha, qpair, fcport, GFP_ATOMIC); 598 if (!sp) 599 return -EBUSY; 600 601 kref_init(&sp->cmd_kref); 602 spin_lock_init(&priv->cmd_lock); 603 sp->priv = priv; 604 priv->sp = sp; 605 sp->type = SRB_NVME_CMD; 606 sp->name = "nvme_cmd"; 607 sp->done = qla_nvme_sp_done; 608 sp->put_fn = qla_nvme_release_fcp_cmd_kref; 609 sp->qpair = qpair; 610 sp->vha = vha; 611 nvme = &sp->u.iocb_cmd; 612 nvme->u.nvme.desc = fd; 613 614 rval = qla2x00_start_nvme_mq(sp); 615 if (rval != QLA_SUCCESS) { 616 ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x212d, 617 "qla2x00_start_nvme_mq failed = %d\n", rval); 618 sp->priv = NULL; 619 priv->sp = NULL; 620 qla2xxx_rel_qpair_sp(sp->qpair, sp); 621 } 622 623 return rval; 624} 625 626static void qla_nvme_localport_delete(struct nvme_fc_local_port *lport) 627{ 628 struct scsi_qla_host *vha = lport->private; 629 630 ql_log(ql_log_info, vha, 0x210f, 631 "localport delete of %p completed.\n", vha->nvme_local_port); 632 vha->nvme_local_port = NULL; 633 complete(&vha->nvme_del_done); 634} 635 636static void qla_nvme_remoteport_delete(struct nvme_fc_remote_port *rport) 637{ 638 fc_port_t *fcport; 639 struct qla_nvme_rport *qla_rport = rport->private; 640 641 fcport = qla_rport->fcport; 642 fcport->nvme_remote_port = NULL; 643 fcport->nvme_flag &= ~NVME_FLAG_REGISTERED; 644 fcport->nvme_flag &= ~NVME_FLAG_DELETING; 645 ql_log(ql_log_info, fcport->vha, 0x2110, 646 "remoteport_delete of %p %8phN completed.\n", 647 fcport, fcport->port_name); 648 complete(&fcport->nvme_del_done); 649} 650 651static struct nvme_fc_port_template qla_nvme_fc_transport = { 652 .localport_delete = qla_nvme_localport_delete, 653 .remoteport_delete = qla_nvme_remoteport_delete, 654 .create_queue = qla_nvme_alloc_queue, 655 .delete_queue = NULL, 656 .ls_req = qla_nvme_ls_req, 657 .ls_abort = qla_nvme_ls_abort, 658 .fcp_io = qla_nvme_post_cmd, 659 .fcp_abort = qla_nvme_fcp_abort, 660 .max_hw_queues = 8, 661 .max_sgl_segments = 1024, 662 .max_dif_sgl_segments = 64, 663 .dma_boundary = 0xFFFFFFFF, 664 .local_priv_sz = 8, 665 .remote_priv_sz = sizeof(struct qla_nvme_rport), 666 .lsrqst_priv_sz = sizeof(struct nvme_private), 667 .fcprqst_priv_sz = sizeof(struct nvme_private), 668}; 669 670void qla_nvme_unregister_remote_port(struct fc_port *fcport) 671{ 672 int ret; 673 674 if (!IS_ENABLED(CONFIG_NVME_FC)) 675 return; 676 677 ql_log(ql_log_warn, NULL, 0x2112, 678 "%s: unregister remoteport on %p %8phN\n", 679 __func__, fcport, fcport->port_name); 680 681 if (test_bit(PFLG_DRIVER_REMOVING, &fcport->vha->pci_flags)) 682 nvme_fc_set_remoteport_devloss(fcport->nvme_remote_port, 0); 683 684 init_completion(&fcport->nvme_del_done); 685 ret = nvme_fc_unregister_remoteport(fcport->nvme_remote_port); 686 if (ret) 687 ql_log(ql_log_info, fcport->vha, 0x2114, 688 "%s: Failed to unregister nvme_remote_port (%d)\n", 689 __func__, ret); 690 wait_for_completion(&fcport->nvme_del_done); 691} 692 693void qla_nvme_delete(struct scsi_qla_host *vha) 694{ 695 int nv_ret; 696 697 if (!IS_ENABLED(CONFIG_NVME_FC)) 698 return; 699 700 if (vha->nvme_local_port) { 701 init_completion(&vha->nvme_del_done); 702 ql_log(ql_log_info, vha, 0x2116, 703 "unregister localport=%p\n", 704 vha->nvme_local_port); 705 nv_ret = nvme_fc_unregister_localport(vha->nvme_local_port); 706 if (nv_ret) 707 ql_log(ql_log_info, vha, 0x2115, 708 "Unregister of localport failed\n"); 709 else 710 wait_for_completion(&vha->nvme_del_done); 711 } 712} 713 714int qla_nvme_register_hba(struct scsi_qla_host *vha) 715{ 716 struct nvme_fc_port_template *tmpl; 717 struct qla_hw_data *ha; 718 struct nvme_fc_port_info pinfo; 719 int ret = -EINVAL; 720 721 if (!IS_ENABLED(CONFIG_NVME_FC)) 722 return ret; 723 724 ha = vha->hw; 725 tmpl = &qla_nvme_fc_transport; 726 727 WARN_ON(vha->nvme_local_port); 728 729 qla_nvme_fc_transport.max_hw_queues = 730 min((uint8_t)(qla_nvme_fc_transport.max_hw_queues), 731 (uint8_t)(ha->max_qpairs ? ha->max_qpairs : 1)); 732 733 pinfo.node_name = wwn_to_u64(vha->node_name); 734 pinfo.port_name = wwn_to_u64(vha->port_name); 735 pinfo.port_role = FC_PORT_ROLE_NVME_INITIATOR; 736 pinfo.port_id = vha->d_id.b24; 737 738 ql_log(ql_log_info, vha, 0xffff, 739 "register_localport: host-traddr=nn-0x%llx:pn-0x%llx on portID:%x\n", 740 pinfo.node_name, pinfo.port_name, pinfo.port_id); 741 qla_nvme_fc_transport.dma_boundary = vha->host->dma_boundary; 742 743 ret = nvme_fc_register_localport(&pinfo, tmpl, 744 get_device(&ha->pdev->dev), &vha->nvme_local_port); 745 if (ret) { 746 ql_log(ql_log_warn, vha, 0xffff, 747 "register_localport failed: ret=%x\n", ret); 748 } else { 749 vha->nvme_local_port->private = vha; 750 } 751 752 return ret; 753} 754