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 /* Map admin queue and 1st IO queue to index 0 */ 95 if (qidx) 96 qidx--; 97 98 vha = (struct scsi_qla_host *)lport->private; 99 ha = vha->hw; 100 101 ql_log(ql_log_info, vha, 0x2104, 102 "%s: handle %p, idx =%d, qsize %d\n", 103 __func__, handle, qidx, qsize); 104 105 if (qidx > qla_nvme_fc_transport.max_hw_queues) { 106 ql_log(ql_log_warn, vha, 0x212f, 107 "%s: Illegal qidx=%d. Max=%d\n", 108 __func__, qidx, qla_nvme_fc_transport.max_hw_queues); 109 return -EINVAL; 110 } 111 112 /* Use base qpair if max_qpairs is 0 */ 113 if (!ha->max_qpairs) { 114 qpair = ha->base_qpair; 115 } else { 116 if (ha->queue_pair_map[qidx]) { 117 *handle = ha->queue_pair_map[qidx]; 118 ql_log(ql_log_info, vha, 0x2121, 119 "Returning existing qpair of %p for idx=%x\n", 120 *handle, qidx); 121 return 0; 122 } 123 124 qpair = qla2xxx_create_qpair(vha, 5, vha->vp_idx, true); 125 if (!qpair) { 126 ql_log(ql_log_warn, vha, 0x2122, 127 "Failed to allocate qpair\n"); 128 return -EINVAL; 129 } 130 } 131 *handle = qpair; 132 133 return 0; 134 } 135 136 static void qla_nvme_release_fcp_cmd_kref(struct kref *kref) 137 { 138 struct srb *sp = container_of(kref, struct srb, cmd_kref); 139 struct nvme_private *priv = (struct nvme_private *)sp->priv; 140 struct nvmefc_fcp_req *fd; 141 struct srb_iocb *nvme; 142 unsigned long flags; 143 144 if (!priv) 145 goto out; 146 147 nvme = &sp->u.iocb_cmd; 148 fd = nvme->u.nvme.desc; 149 150 spin_lock_irqsave(&priv->cmd_lock, flags); 151 priv->sp = NULL; 152 sp->priv = NULL; 153 if (priv->comp_status == QLA_SUCCESS) { 154 fd->rcv_rsplen = le16_to_cpu(nvme->u.nvme.rsp_pyld_len); 155 fd->status = NVME_SC_SUCCESS; 156 } else { 157 fd->rcv_rsplen = 0; 158 fd->transferred_length = 0; 159 fd->status = NVME_SC_INTERNAL; 160 } 161 spin_unlock_irqrestore(&priv->cmd_lock, flags); 162 163 fd->done(fd); 164 out: 165 qla2xxx_rel_qpair_sp(sp->qpair, sp); 166 } 167 168 static void qla_nvme_release_ls_cmd_kref(struct kref *kref) 169 { 170 struct srb *sp = container_of(kref, struct srb, cmd_kref); 171 struct nvme_private *priv = (struct nvme_private *)sp->priv; 172 struct nvmefc_ls_req *fd; 173 unsigned long flags; 174 175 if (!priv) 176 goto out; 177 178 spin_lock_irqsave(&priv->cmd_lock, flags); 179 priv->sp = NULL; 180 sp->priv = NULL; 181 spin_unlock_irqrestore(&priv->cmd_lock, flags); 182 183 fd = priv->fd; 184 fd->done(fd, priv->comp_status); 185 out: 186 qla2x00_rel_sp(sp); 187 } 188 189 static void qla_nvme_ls_complete(struct work_struct *work) 190 { 191 struct nvme_private *priv = 192 container_of(work, struct nvme_private, ls_work); 193 194 kref_put(&priv->sp->cmd_kref, qla_nvme_release_ls_cmd_kref); 195 } 196 197 static void qla_nvme_sp_ls_done(srb_t *sp, int res) 198 { 199 struct nvme_private *priv = sp->priv; 200 201 if (WARN_ON_ONCE(kref_read(&sp->cmd_kref) == 0)) 202 return; 203 204 if (res) 205 res = -EINVAL; 206 207 priv->comp_status = res; 208 INIT_WORK(&priv->ls_work, qla_nvme_ls_complete); 209 schedule_work(&priv->ls_work); 210 } 211 212 /* it assumed that QPair lock is held. */ 213 static void qla_nvme_sp_done(srb_t *sp, int res) 214 { 215 struct nvme_private *priv = sp->priv; 216 217 priv->comp_status = res; 218 kref_put(&sp->cmd_kref, qla_nvme_release_fcp_cmd_kref); 219 220 return; 221 } 222 223 static void qla_nvme_abort_work(struct work_struct *work) 224 { 225 struct nvme_private *priv = 226 container_of(work, struct nvme_private, abort_work); 227 srb_t *sp = priv->sp; 228 fc_port_t *fcport = sp->fcport; 229 struct qla_hw_data *ha = fcport->vha->hw; 230 int rval, abts_done_called = 1; 231 232 ql_dbg(ql_dbg_io, fcport->vha, 0xffff, 233 "%s called for sp=%p, hndl=%x on fcport=%p desc=%p deleted=%d\n", 234 __func__, sp, sp->handle, fcport, sp->u.iocb_cmd.u.nvme.desc, fcport->deleted); 235 236 if (!ha->flags.fw_started || fcport->deleted == QLA_SESS_DELETED) 237 goto out; 238 239 if (ha->flags.host_shutting_down) { 240 ql_log(ql_log_info, sp->fcport->vha, 0xffff, 241 "%s Calling done on sp: %p, type: 0x%x\n", 242 __func__, sp, sp->type); 243 sp->done(sp, 0); 244 goto out; 245 } 246 247 rval = ha->isp_ops->abort_command(sp); 248 249 ql_dbg(ql_dbg_io, fcport->vha, 0x212b, 250 "%s: %s command for sp=%p, handle=%x on fcport=%p rval=%x\n", 251 __func__, (rval != QLA_SUCCESS) ? "Failed to abort" : "Aborted", 252 sp, sp->handle, fcport, rval); 253 254 /* 255 * If async tmf is enabled, the abort callback is called only on 256 * return codes QLA_SUCCESS and QLA_ERR_FROM_FW. 257 */ 258 if (ql2xasynctmfenable && 259 rval != QLA_SUCCESS && rval != QLA_ERR_FROM_FW) 260 abts_done_called = 0; 261 262 /* 263 * Returned before decreasing kref so that I/O requests 264 * are waited until ABTS complete. This kref is decreased 265 * at qla24xx_abort_sp_done function. 266 */ 267 if (abts_done_called && ql2xabts_wait_nvme && QLA_ABTS_WAIT_ENABLED(sp)) 268 return; 269 out: 270 /* kref_get was done before work was schedule. */ 271 kref_put(&sp->cmd_kref, sp->put_fn); 272 } 273 274 static void qla_nvme_ls_abort(struct nvme_fc_local_port *lport, 275 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd) 276 { 277 struct nvme_private *priv = fd->private; 278 unsigned long flags; 279 280 spin_lock_irqsave(&priv->cmd_lock, flags); 281 if (!priv->sp) { 282 spin_unlock_irqrestore(&priv->cmd_lock, flags); 283 return; 284 } 285 286 if (!kref_get_unless_zero(&priv->sp->cmd_kref)) { 287 spin_unlock_irqrestore(&priv->cmd_lock, flags); 288 return; 289 } 290 spin_unlock_irqrestore(&priv->cmd_lock, flags); 291 292 INIT_WORK(&priv->abort_work, qla_nvme_abort_work); 293 schedule_work(&priv->abort_work); 294 } 295 296 static int qla_nvme_ls_req(struct nvme_fc_local_port *lport, 297 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd) 298 { 299 struct qla_nvme_rport *qla_rport = rport->private; 300 fc_port_t *fcport = qla_rport->fcport; 301 struct srb_iocb *nvme; 302 struct nvme_private *priv = fd->private; 303 struct scsi_qla_host *vha; 304 int rval = QLA_FUNCTION_FAILED; 305 struct qla_hw_data *ha; 306 srb_t *sp; 307 308 if (!fcport || fcport->deleted) 309 return rval; 310 311 vha = fcport->vha; 312 ha = vha->hw; 313 314 if (!ha->flags.fw_started) 315 return rval; 316 317 /* Alloc SRB structure */ 318 sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC); 319 if (!sp) 320 return rval; 321 322 sp->type = SRB_NVME_LS; 323 sp->name = "nvme_ls"; 324 sp->done = qla_nvme_sp_ls_done; 325 sp->put_fn = qla_nvme_release_ls_cmd_kref; 326 sp->priv = priv; 327 priv->sp = sp; 328 kref_init(&sp->cmd_kref); 329 spin_lock_init(&priv->cmd_lock); 330 nvme = &sp->u.iocb_cmd; 331 priv->fd = fd; 332 nvme->u.nvme.desc = fd; 333 nvme->u.nvme.dir = 0; 334 nvme->u.nvme.dl = 0; 335 nvme->u.nvme.cmd_len = fd->rqstlen; 336 nvme->u.nvme.rsp_len = fd->rsplen; 337 nvme->u.nvme.rsp_dma = fd->rspdma; 338 nvme->u.nvme.timeout_sec = fd->timeout; 339 nvme->u.nvme.cmd_dma = dma_map_single(&ha->pdev->dev, fd->rqstaddr, 340 fd->rqstlen, DMA_TO_DEVICE); 341 dma_sync_single_for_device(&ha->pdev->dev, nvme->u.nvme.cmd_dma, 342 fd->rqstlen, DMA_TO_DEVICE); 343 344 rval = qla2x00_start_sp(sp); 345 if (rval != QLA_SUCCESS) { 346 ql_log(ql_log_warn, vha, 0x700e, 347 "qla2x00_start_sp failed = %d\n", rval); 348 wake_up(&sp->nvme_ls_waitq); 349 sp->priv = NULL; 350 priv->sp = NULL; 351 qla2x00_rel_sp(sp); 352 return rval; 353 } 354 355 return rval; 356 } 357 358 static void qla_nvme_fcp_abort(struct nvme_fc_local_port *lport, 359 struct nvme_fc_remote_port *rport, void *hw_queue_handle, 360 struct nvmefc_fcp_req *fd) 361 { 362 struct nvme_private *priv = fd->private; 363 unsigned long flags; 364 365 spin_lock_irqsave(&priv->cmd_lock, flags); 366 if (!priv->sp) { 367 spin_unlock_irqrestore(&priv->cmd_lock, flags); 368 return; 369 } 370 if (!kref_get_unless_zero(&priv->sp->cmd_kref)) { 371 spin_unlock_irqrestore(&priv->cmd_lock, flags); 372 return; 373 } 374 spin_unlock_irqrestore(&priv->cmd_lock, flags); 375 376 INIT_WORK(&priv->abort_work, qla_nvme_abort_work); 377 schedule_work(&priv->abort_work); 378 } 379 380 static inline int qla2x00_start_nvme_mq(srb_t *sp) 381 { 382 unsigned long flags; 383 uint32_t *clr_ptr; 384 uint32_t handle; 385 struct cmd_nvme *cmd_pkt; 386 uint16_t cnt, i; 387 uint16_t req_cnt; 388 uint16_t tot_dsds; 389 uint16_t avail_dsds; 390 struct dsd64 *cur_dsd; 391 struct req_que *req = NULL; 392 struct scsi_qla_host *vha = sp->fcport->vha; 393 struct qla_hw_data *ha = vha->hw; 394 struct qla_qpair *qpair = sp->qpair; 395 struct srb_iocb *nvme = &sp->u.iocb_cmd; 396 struct scatterlist *sgl, *sg; 397 struct nvmefc_fcp_req *fd = nvme->u.nvme.desc; 398 struct nvme_fc_cmd_iu *cmd = fd->cmdaddr; 399 uint32_t rval = QLA_SUCCESS; 400 401 /* Setup qpair pointers */ 402 req = qpair->req; 403 tot_dsds = fd->sg_cnt; 404 405 /* Acquire qpair specific lock */ 406 spin_lock_irqsave(&qpair->qp_lock, flags); 407 408 handle = qla2xxx_get_next_handle(req); 409 if (handle == 0) { 410 rval = -EBUSY; 411 goto queuing_error; 412 } 413 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 414 if (req->cnt < (req_cnt + 2)) { 415 if (IS_SHADOW_REG_CAPABLE(ha)) { 416 cnt = *req->out_ptr; 417 } else { 418 cnt = rd_reg_dword_relaxed(req->req_q_out); 419 if (qla2x00_check_reg16_for_disconnect(vha, cnt)) 420 goto queuing_error; 421 } 422 423 if (req->ring_index < cnt) 424 req->cnt = cnt - req->ring_index; 425 else 426 req->cnt = req->length - (req->ring_index - cnt); 427 428 if (req->cnt < (req_cnt + 2)){ 429 rval = -EBUSY; 430 goto queuing_error; 431 } 432 } 433 434 if (unlikely(!fd->sqid)) { 435 if (cmd->sqe.common.opcode == nvme_admin_async_event) { 436 nvme->u.nvme.aen_op = 1; 437 atomic_inc(&ha->nvme_active_aen_cnt); 438 } 439 } 440 441 /* Build command packet. */ 442 req->current_outstanding_cmd = handle; 443 req->outstanding_cmds[handle] = sp; 444 sp->handle = handle; 445 req->cnt -= req_cnt; 446 447 cmd_pkt = (struct cmd_nvme *)req->ring_ptr; 448 cmd_pkt->handle = make_handle(req->id, handle); 449 450 /* Zero out remaining portion of packet. */ 451 clr_ptr = (uint32_t *)cmd_pkt + 2; 452 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 453 454 cmd_pkt->entry_status = 0; 455 456 /* Update entry type to indicate Command NVME IOCB */ 457 cmd_pkt->entry_type = COMMAND_NVME; 458 459 /* No data transfer how do we check buffer len == 0?? */ 460 if (fd->io_dir == NVMEFC_FCP_READ) { 461 cmd_pkt->control_flags = cpu_to_le16(CF_READ_DATA); 462 qpair->counters.input_bytes += fd->payload_length; 463 qpair->counters.input_requests++; 464 } else if (fd->io_dir == NVMEFC_FCP_WRITE) { 465 cmd_pkt->control_flags = cpu_to_le16(CF_WRITE_DATA); 466 if ((vha->flags.nvme_first_burst) && 467 (sp->fcport->nvme_prli_service_param & 468 NVME_PRLI_SP_FIRST_BURST)) { 469 if ((fd->payload_length <= 470 sp->fcport->nvme_first_burst_size) || 471 (sp->fcport->nvme_first_burst_size == 0)) 472 cmd_pkt->control_flags |= 473 cpu_to_le16(CF_NVME_FIRST_BURST_ENABLE); 474 } 475 qpair->counters.output_bytes += fd->payload_length; 476 qpair->counters.output_requests++; 477 } else if (fd->io_dir == 0) { 478 cmd_pkt->control_flags = 0; 479 } 480 481 if (sp->fcport->edif.enable && fd->io_dir != 0) 482 cmd_pkt->control_flags |= cpu_to_le16(CF_EN_EDIF); 483 484 /* Set BIT_13 of control flags for Async event */ 485 if (vha->flags.nvme2_enabled && 486 cmd->sqe.common.opcode == nvme_admin_async_event) { 487 cmd_pkt->control_flags |= cpu_to_le16(CF_ADMIN_ASYNC_EVENT); 488 } 489 490 /* Set NPORT-ID */ 491 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 492 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 493 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 494 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 495 cmd_pkt->vp_index = sp->fcport->vha->vp_idx; 496 497 /* NVME RSP IU */ 498 cmd_pkt->nvme_rsp_dsd_len = cpu_to_le16(fd->rsplen); 499 put_unaligned_le64(fd->rspdma, &cmd_pkt->nvme_rsp_dseg_address); 500 501 /* NVME CNMD IU */ 502 cmd_pkt->nvme_cmnd_dseg_len = cpu_to_le16(fd->cmdlen); 503 cmd_pkt->nvme_cmnd_dseg_address = cpu_to_le64(fd->cmddma); 504 505 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 506 cmd_pkt->byte_count = cpu_to_le32(fd->payload_length); 507 508 /* One DSD is available in the Command Type NVME IOCB */ 509 avail_dsds = 1; 510 cur_dsd = &cmd_pkt->nvme_dsd; 511 sgl = fd->first_sgl; 512 513 /* Load data segments */ 514 for_each_sg(sgl, sg, tot_dsds, i) { 515 cont_a64_entry_t *cont_pkt; 516 517 /* Allocate additional continuation packets? */ 518 if (avail_dsds == 0) { 519 /* 520 * Five DSDs are available in the Continuation 521 * Type 1 IOCB. 522 */ 523 524 /* Adjust ring index */ 525 req->ring_index++; 526 if (req->ring_index == req->length) { 527 req->ring_index = 0; 528 req->ring_ptr = req->ring; 529 } else { 530 req->ring_ptr++; 531 } 532 cont_pkt = (cont_a64_entry_t *)req->ring_ptr; 533 put_unaligned_le32(CONTINUE_A64_TYPE, 534 &cont_pkt->entry_type); 535 536 cur_dsd = cont_pkt->dsd; 537 avail_dsds = ARRAY_SIZE(cont_pkt->dsd); 538 } 539 540 append_dsd64(&cur_dsd, sg); 541 avail_dsds--; 542 } 543 544 /* Set total entry count. */ 545 cmd_pkt->entry_count = (uint8_t)req_cnt; 546 wmb(); 547 548 /* Adjust ring index. */ 549 req->ring_index++; 550 if (req->ring_index == req->length) { 551 req->ring_index = 0; 552 req->ring_ptr = req->ring; 553 } else { 554 req->ring_ptr++; 555 } 556 557 /* ignore nvme async cmd due to long timeout */ 558 if (!nvme->u.nvme.aen_op) 559 sp->qpair->cmd_cnt++; 560 561 /* Set chip new ring index. */ 562 wrt_reg_dword(req->req_q_in, req->ring_index); 563 564 queuing_error: 565 spin_unlock_irqrestore(&qpair->qp_lock, flags); 566 567 return rval; 568 } 569 570 /* Post a command */ 571 static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport, 572 struct nvme_fc_remote_port *rport, void *hw_queue_handle, 573 struct nvmefc_fcp_req *fd) 574 { 575 fc_port_t *fcport; 576 struct srb_iocb *nvme; 577 struct scsi_qla_host *vha; 578 int rval; 579 srb_t *sp; 580 struct qla_qpair *qpair = hw_queue_handle; 581 struct nvme_private *priv = fd->private; 582 struct qla_nvme_rport *qla_rport = rport->private; 583 584 if (!priv) { 585 /* nvme association has been torn down */ 586 return -ENODEV; 587 } 588 589 fcport = qla_rport->fcport; 590 591 if (unlikely(!qpair || !fcport || fcport->deleted)) 592 return -EBUSY; 593 594 if (!(fcport->nvme_flag & NVME_FLAG_REGISTERED)) 595 return -ENODEV; 596 597 vha = fcport->vha; 598 599 if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) 600 return -EBUSY; 601 602 /* 603 * If we know the dev is going away while the transport is still sending 604 * IO's return busy back to stall the IO Q. This happens when the 605 * link goes away and fw hasn't notified us yet, but IO's are being 606 * returned. If the dev comes back quickly we won't exhaust the IO 607 * retry count at the core. 608 */ 609 if (fcport->nvme_flag & NVME_FLAG_RESETTING) 610 return -EBUSY; 611 612 /* Alloc SRB structure */ 613 sp = qla2xxx_get_qpair_sp(vha, qpair, fcport, GFP_ATOMIC); 614 if (!sp) 615 return -EBUSY; 616 617 init_waitqueue_head(&sp->nvme_ls_waitq); 618 kref_init(&sp->cmd_kref); 619 spin_lock_init(&priv->cmd_lock); 620 sp->priv = priv; 621 priv->sp = sp; 622 sp->type = SRB_NVME_CMD; 623 sp->name = "nvme_cmd"; 624 sp->done = qla_nvme_sp_done; 625 sp->put_fn = qla_nvme_release_fcp_cmd_kref; 626 sp->qpair = qpair; 627 sp->vha = vha; 628 sp->cmd_sp = sp; 629 nvme = &sp->u.iocb_cmd; 630 nvme->u.nvme.desc = fd; 631 632 rval = qla2x00_start_nvme_mq(sp); 633 if (rval != QLA_SUCCESS) { 634 ql_log(ql_log_warn, vha, 0x212d, 635 "qla2x00_start_nvme_mq failed = %d\n", rval); 636 wake_up(&sp->nvme_ls_waitq); 637 sp->priv = NULL; 638 priv->sp = NULL; 639 qla2xxx_rel_qpair_sp(sp->qpair, sp); 640 } 641 642 return rval; 643 } 644 645 static void qla_nvme_localport_delete(struct nvme_fc_local_port *lport) 646 { 647 struct scsi_qla_host *vha = lport->private; 648 649 ql_log(ql_log_info, vha, 0x210f, 650 "localport delete of %p completed.\n", vha->nvme_local_port); 651 vha->nvme_local_port = NULL; 652 complete(&vha->nvme_del_done); 653 } 654 655 static void qla_nvme_remoteport_delete(struct nvme_fc_remote_port *rport) 656 { 657 fc_port_t *fcport; 658 struct qla_nvme_rport *qla_rport = rport->private; 659 660 fcport = qla_rport->fcport; 661 fcport->nvme_remote_port = NULL; 662 fcport->nvme_flag &= ~NVME_FLAG_REGISTERED; 663 fcport->nvme_flag &= ~NVME_FLAG_DELETING; 664 ql_log(ql_log_info, fcport->vha, 0x2110, 665 "remoteport_delete of %p %8phN completed.\n", 666 fcport, fcport->port_name); 667 complete(&fcport->nvme_del_done); 668 } 669 670 static struct nvme_fc_port_template qla_nvme_fc_transport = { 671 .localport_delete = qla_nvme_localport_delete, 672 .remoteport_delete = qla_nvme_remoteport_delete, 673 .create_queue = qla_nvme_alloc_queue, 674 .delete_queue = NULL, 675 .ls_req = qla_nvme_ls_req, 676 .ls_abort = qla_nvme_ls_abort, 677 .fcp_io = qla_nvme_post_cmd, 678 .fcp_abort = qla_nvme_fcp_abort, 679 .max_hw_queues = 8, 680 .max_sgl_segments = 1024, 681 .max_dif_sgl_segments = 64, 682 .dma_boundary = 0xFFFFFFFF, 683 .local_priv_sz = 8, 684 .remote_priv_sz = sizeof(struct qla_nvme_rport), 685 .lsrqst_priv_sz = sizeof(struct nvme_private), 686 .fcprqst_priv_sz = sizeof(struct nvme_private), 687 }; 688 689 void qla_nvme_unregister_remote_port(struct fc_port *fcport) 690 { 691 int ret; 692 693 if (!IS_ENABLED(CONFIG_NVME_FC)) 694 return; 695 696 ql_log(ql_log_warn, fcport->vha, 0x2112, 697 "%s: unregister remoteport on %p %8phN\n", 698 __func__, fcport, fcport->port_name); 699 700 if (test_bit(PFLG_DRIVER_REMOVING, &fcport->vha->pci_flags)) 701 nvme_fc_set_remoteport_devloss(fcport->nvme_remote_port, 0); 702 703 init_completion(&fcport->nvme_del_done); 704 ret = nvme_fc_unregister_remoteport(fcport->nvme_remote_port); 705 if (ret) 706 ql_log(ql_log_info, fcport->vha, 0x2114, 707 "%s: Failed to unregister nvme_remote_port (%d)\n", 708 __func__, ret); 709 wait_for_completion(&fcport->nvme_del_done); 710 } 711 712 void qla_nvme_delete(struct scsi_qla_host *vha) 713 { 714 int nv_ret; 715 716 if (!IS_ENABLED(CONFIG_NVME_FC)) 717 return; 718 719 if (vha->nvme_local_port) { 720 init_completion(&vha->nvme_del_done); 721 ql_log(ql_log_info, vha, 0x2116, 722 "unregister localport=%p\n", 723 vha->nvme_local_port); 724 nv_ret = nvme_fc_unregister_localport(vha->nvme_local_port); 725 if (nv_ret) 726 ql_log(ql_log_info, vha, 0x2115, 727 "Unregister of localport failed\n"); 728 else 729 wait_for_completion(&vha->nvme_del_done); 730 } 731 } 732 733 int qla_nvme_register_hba(struct scsi_qla_host *vha) 734 { 735 struct nvme_fc_port_template *tmpl; 736 struct qla_hw_data *ha; 737 struct nvme_fc_port_info pinfo; 738 int ret = -EINVAL; 739 740 if (!IS_ENABLED(CONFIG_NVME_FC)) 741 return ret; 742 743 ha = vha->hw; 744 tmpl = &qla_nvme_fc_transport; 745 746 WARN_ON(vha->nvme_local_port); 747 748 qla_nvme_fc_transport.max_hw_queues = 749 min((uint8_t)(qla_nvme_fc_transport.max_hw_queues), 750 (uint8_t)(ha->max_qpairs ? ha->max_qpairs : 1)); 751 752 pinfo.node_name = wwn_to_u64(vha->node_name); 753 pinfo.port_name = wwn_to_u64(vha->port_name); 754 pinfo.port_role = FC_PORT_ROLE_NVME_INITIATOR; 755 pinfo.port_id = vha->d_id.b24; 756 757 ql_log(ql_log_info, vha, 0xffff, 758 "register_localport: host-traddr=nn-0x%llx:pn-0x%llx on portID:%x\n", 759 pinfo.node_name, pinfo.port_name, pinfo.port_id); 760 qla_nvme_fc_transport.dma_boundary = vha->host->dma_boundary; 761 762 ret = nvme_fc_register_localport(&pinfo, tmpl, 763 get_device(&ha->pdev->dev), &vha->nvme_local_port); 764 if (ret) { 765 ql_log(ql_log_warn, vha, 0xffff, 766 "register_localport failed: ret=%x\n", ret); 767 } else { 768 vha->nvme_local_port->private = vha; 769 } 770 771 return ret; 772 } 773 774 void qla_nvme_abort_set_option(struct abort_entry_24xx *abt, srb_t *orig_sp) 775 { 776 struct qla_hw_data *ha; 777 778 if (!(ql2xabts_wait_nvme && QLA_ABTS_WAIT_ENABLED(orig_sp))) 779 return; 780 781 ha = orig_sp->fcport->vha->hw; 782 783 WARN_ON_ONCE(abt->options & cpu_to_le16(BIT_0)); 784 /* Use Driver Specified Retry Count */ 785 abt->options |= cpu_to_le16(AOF_ABTS_RTY_CNT); 786 abt->drv.abts_rty_cnt = cpu_to_le16(2); 787 /* Use specified response timeout */ 788 abt->options |= cpu_to_le16(AOF_RSP_TIMEOUT); 789 /* set it to 2 * r_a_tov in secs */ 790 abt->drv.rsp_timeout = cpu_to_le16(2 * (ha->r_a_tov / 10)); 791 } 792 793 void qla_nvme_abort_process_comp_status(struct abort_entry_24xx *abt, srb_t *orig_sp) 794 { 795 u16 comp_status; 796 struct scsi_qla_host *vha; 797 798 if (!(ql2xabts_wait_nvme && QLA_ABTS_WAIT_ENABLED(orig_sp))) 799 return; 800 801 vha = orig_sp->fcport->vha; 802 803 comp_status = le16_to_cpu(abt->comp_status); 804 switch (comp_status) { 805 case CS_RESET: /* reset event aborted */ 806 case CS_ABORTED: /* IOCB was cleaned */ 807 /* N_Port handle is not currently logged in */ 808 case CS_TIMEOUT: 809 /* N_Port handle was logged out while waiting for ABTS to complete */ 810 case CS_PORT_UNAVAILABLE: 811 /* Firmware found that the port name changed */ 812 case CS_PORT_LOGGED_OUT: 813 /* BA_RJT was received for the ABTS */ 814 case CS_PORT_CONFIG_CHG: 815 ql_dbg(ql_dbg_async, vha, 0xf09d, 816 "Abort I/O IOCB completed with error, comp_status=%x\n", 817 comp_status); 818 break; 819 820 /* BA_RJT was received for the ABTS */ 821 case CS_REJECT_RECEIVED: 822 ql_dbg(ql_dbg_async, vha, 0xf09e, 823 "BA_RJT was received for the ABTS rjt_vendorUnique = %u", 824 abt->fw.ba_rjt_vendorUnique); 825 ql_dbg(ql_dbg_async + ql_dbg_mbx, vha, 0xf09e, 826 "ba_rjt_reasonCodeExpl = %u, ba_rjt_reasonCode = %u\n", 827 abt->fw.ba_rjt_reasonCodeExpl, abt->fw.ba_rjt_reasonCode); 828 break; 829 830 case CS_COMPLETE: 831 ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0xf09f, 832 "IOCB request is completed successfully comp_status=%x\n", 833 comp_status); 834 break; 835 836 case CS_IOCB_ERROR: 837 ql_dbg(ql_dbg_async, vha, 0xf0a0, 838 "IOCB request is failed, comp_status=%x\n", comp_status); 839 break; 840 841 default: 842 ql_dbg(ql_dbg_async, vha, 0xf0a1, 843 "Invalid Abort IO IOCB Completion Status %x\n", 844 comp_status); 845 break; 846 } 847 } 848 849 inline void qla_wait_nvme_release_cmd_kref(srb_t *orig_sp) 850 { 851 if (!(ql2xabts_wait_nvme && QLA_ABTS_WAIT_ENABLED(orig_sp))) 852 return; 853 kref_put(&orig_sp->cmd_kref, orig_sp->put_fn); 854 } 855