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