1 /* 2 * QLogic Fibre Channel HBA Driver 3 * Copyright (c) 2003-2017 QLogic Corporation 4 * 5 * See LICENSE.qla2xxx for copyright and licensing details. 6 */ 7 #include "qla_nvme.h" 8 #include <linux/scatterlist.h> 9 #include <linux/delay.h> 10 #include <linux/nvme.h> 11 #include <linux/nvme-fc.h> 12 13 static struct nvme_fc_port_template qla_nvme_fc_transport; 14 15 static void qla_nvme_unregister_remote_port(struct work_struct *); 16 17 int qla_nvme_register_remote(struct scsi_qla_host *vha, struct fc_port *fcport) 18 { 19 struct qla_nvme_rport *rport; 20 struct nvme_fc_port_info req; 21 int ret; 22 23 if (!IS_ENABLED(CONFIG_NVME_FC)) 24 return 0; 25 26 if (!vha->flags.nvme_enabled) { 27 ql_log(ql_log_info, vha, 0x2100, 28 "%s: Not registering target since Host NVME is not enabled\n", 29 __func__); 30 return 0; 31 } 32 33 if (!vha->nvme_local_port && qla_nvme_register_hba(vha)) 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 INIT_WORK(&fcport->nvme_del_work, qla_nvme_unregister_remote_port); 42 fcport->nvme_flag &= ~NVME_FLAG_RESETTING; 43 44 memset(&req, 0, sizeof(struct nvme_fc_port_info)); 45 req.port_name = wwn_to_u64(fcport->port_name); 46 req.node_name = wwn_to_u64(fcport->node_name); 47 req.port_role = 0; 48 req.dev_loss_tmo = NVME_FC_DEV_LOSS_TMO; 49 50 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_INITIATOR) 51 req.port_role = FC_PORT_ROLE_NVME_INITIATOR; 52 53 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_TARGET) 54 req.port_role |= FC_PORT_ROLE_NVME_TARGET; 55 56 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_DISCOVERY) 57 req.port_role |= FC_PORT_ROLE_NVME_DISCOVERY; 58 59 req.port_id = fcport->d_id.b24; 60 61 ql_log(ql_log_info, vha, 0x2102, 62 "%s: traddr=nn-0x%016llx:pn-0x%016llx PortID:%06x\n", 63 __func__, req.node_name, req.port_name, 64 req.port_id); 65 66 ret = nvme_fc_register_remoteport(vha->nvme_local_port, &req, 67 &fcport->nvme_remote_port); 68 if (ret) { 69 ql_log(ql_log_warn, vha, 0x212e, 70 "Failed to register remote port. Transport returned %d\n", 71 ret); 72 return ret; 73 } 74 75 rport = fcport->nvme_remote_port->private; 76 rport->fcport = fcport; 77 list_add_tail(&rport->list, &vha->nvme_rport_list); 78 79 fcport->nvme_flag |= NVME_FLAG_REGISTERED; 80 return 0; 81 } 82 83 /* Allocate a queue for NVMe traffic */ 84 static int qla_nvme_alloc_queue(struct nvme_fc_local_port *lport, 85 unsigned int qidx, u16 qsize, void **handle) 86 { 87 struct scsi_qla_host *vha; 88 struct qla_hw_data *ha; 89 struct qla_qpair *qpair; 90 91 if (!qidx) 92 qidx++; 93 94 vha = (struct scsi_qla_host *)lport->private; 95 ha = vha->hw; 96 97 ql_log(ql_log_info, vha, 0x2104, 98 "%s: handle %p, idx =%d, qsize %d\n", 99 __func__, handle, qidx, qsize); 100 101 if (qidx > qla_nvme_fc_transport.max_hw_queues) { 102 ql_log(ql_log_warn, vha, 0x212f, 103 "%s: Illegal qidx=%d. Max=%d\n", 104 __func__, qidx, qla_nvme_fc_transport.max_hw_queues); 105 return -EINVAL; 106 } 107 108 if (ha->queue_pair_map[qidx]) { 109 *handle = ha->queue_pair_map[qidx]; 110 ql_log(ql_log_info, vha, 0x2121, 111 "Returning existing qpair of %p for idx=%x\n", 112 *handle, qidx); 113 return 0; 114 } 115 116 qpair = qla2xxx_create_qpair(vha, 5, vha->vp_idx, true); 117 if (qpair == NULL) { 118 ql_log(ql_log_warn, vha, 0x2122, 119 "Failed to allocate qpair\n"); 120 return -EINVAL; 121 } 122 *handle = qpair; 123 124 return 0; 125 } 126 127 static void qla_nvme_sp_ls_done(void *ptr, int res) 128 { 129 srb_t *sp = ptr; 130 struct srb_iocb *nvme; 131 struct nvmefc_ls_req *fd; 132 struct nvme_private *priv; 133 134 if (atomic_read(&sp->ref_count) == 0) { 135 ql_log(ql_log_warn, sp->fcport->vha, 0x2123, 136 "SP reference-count to ZERO on LS_done -- sp=%p.\n", sp); 137 return; 138 } 139 140 if (!atomic_dec_and_test(&sp->ref_count)) 141 return; 142 143 if (res) 144 res = -EINVAL; 145 146 nvme = &sp->u.iocb_cmd; 147 fd = nvme->u.nvme.desc; 148 priv = fd->private; 149 priv->comp_status = res; 150 schedule_work(&priv->ls_work); 151 /* work schedule doesn't need the sp */ 152 qla2x00_rel_sp(sp); 153 } 154 155 static void qla_nvme_sp_done(void *ptr, int res) 156 { 157 srb_t *sp = ptr; 158 struct srb_iocb *nvme; 159 struct nvmefc_fcp_req *fd; 160 161 nvme = &sp->u.iocb_cmd; 162 fd = nvme->u.nvme.desc; 163 164 if (!atomic_dec_and_test(&sp->ref_count)) 165 return; 166 167 if (res == QLA_SUCCESS) 168 fd->status = 0; 169 else 170 fd->status = NVME_SC_INTERNAL; 171 172 fd->rcv_rsplen = nvme->u.nvme.rsp_pyld_len; 173 fd->done(fd); 174 qla2xxx_rel_qpair_sp(sp->qpair, sp); 175 176 return; 177 } 178 179 static void qla_nvme_abort_work(struct work_struct *work) 180 { 181 struct nvme_private *priv = 182 container_of(work, struct nvme_private, abort_work); 183 srb_t *sp = priv->sp; 184 fc_port_t *fcport = sp->fcport; 185 struct qla_hw_data *ha = fcport->vha->hw; 186 int rval; 187 188 rval = ha->isp_ops->abort_command(sp); 189 190 ql_dbg(ql_dbg_io, fcport->vha, 0x212b, 191 "%s: %s command for sp=%p, handle=%x on fcport=%p rval=%x\n", 192 __func__, (rval != QLA_SUCCESS) ? "Failed to abort" : "Aborted", 193 sp, sp->handle, fcport, rval); 194 } 195 196 static void qla_nvme_ls_abort(struct nvme_fc_local_port *lport, 197 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd) 198 { 199 struct nvme_private *priv = fd->private; 200 201 INIT_WORK(&priv->abort_work, qla_nvme_abort_work); 202 schedule_work(&priv->abort_work); 203 } 204 205 static void qla_nvme_ls_complete(struct work_struct *work) 206 { 207 struct nvme_private *priv = 208 container_of(work, struct nvme_private, ls_work); 209 struct nvmefc_ls_req *fd = priv->fd; 210 211 fd->done(fd, priv->comp_status); 212 } 213 214 static int qla_nvme_ls_req(struct nvme_fc_local_port *lport, 215 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd) 216 { 217 struct qla_nvme_rport *qla_rport = rport->private; 218 fc_port_t *fcport = qla_rport->fcport; 219 struct srb_iocb *nvme; 220 struct nvme_private *priv = fd->private; 221 struct scsi_qla_host *vha; 222 int rval = QLA_FUNCTION_FAILED; 223 struct qla_hw_data *ha; 224 srb_t *sp; 225 226 vha = fcport->vha; 227 ha = vha->hw; 228 /* Alloc SRB structure */ 229 sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC); 230 if (!sp) 231 return rval; 232 233 sp->type = SRB_NVME_LS; 234 sp->name = "nvme_ls"; 235 sp->done = qla_nvme_sp_ls_done; 236 atomic_set(&sp->ref_count, 1); 237 nvme = &sp->u.iocb_cmd; 238 priv->sp = sp; 239 priv->fd = fd; 240 INIT_WORK(&priv->ls_work, qla_nvme_ls_complete); 241 nvme->u.nvme.desc = fd; 242 nvme->u.nvme.dir = 0; 243 nvme->u.nvme.dl = 0; 244 nvme->u.nvme.cmd_len = fd->rqstlen; 245 nvme->u.nvme.rsp_len = fd->rsplen; 246 nvme->u.nvme.rsp_dma = fd->rspdma; 247 nvme->u.nvme.timeout_sec = fd->timeout; 248 nvme->u.nvme.cmd_dma = dma_map_single(&ha->pdev->dev, fd->rqstaddr, 249 fd->rqstlen, DMA_TO_DEVICE); 250 dma_sync_single_for_device(&ha->pdev->dev, nvme->u.nvme.cmd_dma, 251 fd->rqstlen, DMA_TO_DEVICE); 252 253 rval = qla2x00_start_sp(sp); 254 if (rval != QLA_SUCCESS) { 255 ql_log(ql_log_warn, vha, 0x700e, 256 "qla2x00_start_sp failed = %d\n", rval); 257 atomic_dec(&sp->ref_count); 258 wake_up(&sp->nvme_ls_waitq); 259 return rval; 260 } 261 262 return rval; 263 } 264 265 static void qla_nvme_fcp_abort(struct nvme_fc_local_port *lport, 266 struct nvme_fc_remote_port *rport, void *hw_queue_handle, 267 struct nvmefc_fcp_req *fd) 268 { 269 struct nvme_private *priv = fd->private; 270 271 INIT_WORK(&priv->abort_work, qla_nvme_abort_work); 272 schedule_work(&priv->abort_work); 273 } 274 275 static void qla_nvme_poll(struct nvme_fc_local_port *lport, void *hw_queue_handle) 276 { 277 struct qla_qpair *qpair = hw_queue_handle; 278 unsigned long flags; 279 struct scsi_qla_host *vha = lport->private; 280 281 spin_lock_irqsave(&qpair->qp_lock, flags); 282 qla24xx_process_response_queue(vha, qpair->rsp); 283 spin_unlock_irqrestore(&qpair->qp_lock, flags); 284 } 285 286 static inline int qla2x00_start_nvme_mq(srb_t *sp) 287 { 288 unsigned long flags; 289 uint32_t *clr_ptr; 290 uint32_t index; 291 uint32_t handle; 292 struct cmd_nvme *cmd_pkt; 293 uint16_t cnt, i; 294 uint16_t req_cnt; 295 uint16_t tot_dsds; 296 uint16_t avail_dsds; 297 uint32_t *cur_dsd; 298 struct req_que *req = NULL; 299 struct scsi_qla_host *vha = sp->fcport->vha; 300 struct qla_hw_data *ha = vha->hw; 301 struct qla_qpair *qpair = sp->qpair; 302 struct srb_iocb *nvme = &sp->u.iocb_cmd; 303 struct scatterlist *sgl, *sg; 304 struct nvmefc_fcp_req *fd = nvme->u.nvme.desc; 305 uint32_t rval = QLA_SUCCESS; 306 307 /* Setup qpair pointers */ 308 req = qpair->req; 309 tot_dsds = fd->sg_cnt; 310 311 /* Acquire qpair specific lock */ 312 spin_lock_irqsave(&qpair->qp_lock, flags); 313 314 /* Check for room in outstanding command list. */ 315 handle = req->current_outstanding_cmd; 316 for (index = 1; index < req->num_outstanding_cmds; index++) { 317 handle++; 318 if (handle == req->num_outstanding_cmds) 319 handle = 1; 320 if (!req->outstanding_cmds[handle]) 321 break; 322 } 323 324 if (index == req->num_outstanding_cmds) { 325 rval = -EBUSY; 326 goto queuing_error; 327 } 328 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 329 if (req->cnt < (req_cnt + 2)) { 330 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr : 331 RD_REG_DWORD_RELAXED(req->req_q_out); 332 333 if (req->ring_index < cnt) 334 req->cnt = cnt - req->ring_index; 335 else 336 req->cnt = req->length - (req->ring_index - cnt); 337 338 if (req->cnt < (req_cnt + 2)){ 339 rval = -EBUSY; 340 goto queuing_error; 341 } 342 } 343 344 if (unlikely(!fd->sqid)) { 345 struct nvme_fc_cmd_iu *cmd = fd->cmdaddr; 346 if (cmd->sqe.common.opcode == nvme_admin_async_event) { 347 nvme->u.nvme.aen_op = 1; 348 atomic_inc(&ha->nvme_active_aen_cnt); 349 } 350 } 351 352 /* Build command packet. */ 353 req->current_outstanding_cmd = handle; 354 req->outstanding_cmds[handle] = sp; 355 sp->handle = handle; 356 req->cnt -= req_cnt; 357 358 cmd_pkt = (struct cmd_nvme *)req->ring_ptr; 359 cmd_pkt->handle = MAKE_HANDLE(req->id, handle); 360 361 /* Zero out remaining portion of packet. */ 362 clr_ptr = (uint32_t *)cmd_pkt + 2; 363 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 364 365 cmd_pkt->entry_status = 0; 366 367 /* Update entry type to indicate Command NVME IOCB */ 368 cmd_pkt->entry_type = COMMAND_NVME; 369 370 /* No data transfer how do we check buffer len == 0?? */ 371 if (fd->io_dir == NVMEFC_FCP_READ) { 372 cmd_pkt->control_flags = 373 cpu_to_le16(CF_READ_DATA | CF_NVME_ENABLE); 374 vha->qla_stats.input_bytes += fd->payload_length; 375 vha->qla_stats.input_requests++; 376 } else if (fd->io_dir == NVMEFC_FCP_WRITE) { 377 cmd_pkt->control_flags = 378 cpu_to_le16(CF_WRITE_DATA | CF_NVME_ENABLE); 379 vha->qla_stats.output_bytes += fd->payload_length; 380 vha->qla_stats.output_requests++; 381 } else if (fd->io_dir == 0) { 382 cmd_pkt->control_flags = cpu_to_le16(CF_NVME_ENABLE); 383 } 384 385 /* Set NPORT-ID */ 386 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 387 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 388 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 389 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 390 cmd_pkt->vp_index = sp->fcport->vha->vp_idx; 391 392 /* NVME RSP IU */ 393 cmd_pkt->nvme_rsp_dsd_len = cpu_to_le16(fd->rsplen); 394 cmd_pkt->nvme_rsp_dseg_address[0] = cpu_to_le32(LSD(fd->rspdma)); 395 cmd_pkt->nvme_rsp_dseg_address[1] = cpu_to_le32(MSD(fd->rspdma)); 396 397 /* NVME CNMD IU */ 398 cmd_pkt->nvme_cmnd_dseg_len = cpu_to_le16(fd->cmdlen); 399 cmd_pkt->nvme_cmnd_dseg_address[0] = cpu_to_le32(LSD(fd->cmddma)); 400 cmd_pkt->nvme_cmnd_dseg_address[1] = cpu_to_le32(MSD(fd->cmddma)); 401 402 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 403 cmd_pkt->byte_count = cpu_to_le32(fd->payload_length); 404 405 /* One DSD is available in the Command Type NVME IOCB */ 406 avail_dsds = 1; 407 cur_dsd = (uint32_t *)&cmd_pkt->nvme_data_dseg_address[0]; 408 sgl = fd->first_sgl; 409 410 /* Load data segments */ 411 for_each_sg(sgl, sg, tot_dsds, i) { 412 dma_addr_t sle_dma; 413 cont_a64_entry_t *cont_pkt; 414 415 /* Allocate additional continuation packets? */ 416 if (avail_dsds == 0) { 417 /* 418 * Five DSDs are available in the Continuation 419 * Type 1 IOCB. 420 */ 421 422 /* Adjust ring index */ 423 req->ring_index++; 424 if (req->ring_index == req->length) { 425 req->ring_index = 0; 426 req->ring_ptr = req->ring; 427 } else { 428 req->ring_ptr++; 429 } 430 cont_pkt = (cont_a64_entry_t *)req->ring_ptr; 431 *((uint32_t *)(&cont_pkt->entry_type)) = 432 cpu_to_le32(CONTINUE_A64_TYPE); 433 434 cur_dsd = (uint32_t *)cont_pkt->dseg_0_address; 435 avail_dsds = 5; 436 } 437 438 sle_dma = sg_dma_address(sg); 439 *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); 440 *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); 441 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); 442 avail_dsds--; 443 } 444 445 /* Set total entry count. */ 446 cmd_pkt->entry_count = (uint8_t)req_cnt; 447 wmb(); 448 449 /* Adjust ring index. */ 450 req->ring_index++; 451 if (req->ring_index == req->length) { 452 req->ring_index = 0; 453 req->ring_ptr = req->ring; 454 } else { 455 req->ring_ptr++; 456 } 457 458 /* Set chip new ring index. */ 459 WRT_REG_DWORD(req->req_q_in, req->ring_index); 460 461 queuing_error: 462 spin_unlock_irqrestore(&qpair->qp_lock, flags); 463 return rval; 464 } 465 466 /* Post a command */ 467 static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport, 468 struct nvme_fc_remote_port *rport, void *hw_queue_handle, 469 struct nvmefc_fcp_req *fd) 470 { 471 fc_port_t *fcport; 472 struct srb_iocb *nvme; 473 struct scsi_qla_host *vha; 474 int rval = -ENODEV; 475 srb_t *sp; 476 struct qla_qpair *qpair = hw_queue_handle; 477 struct nvme_private *priv; 478 struct qla_nvme_rport *qla_rport = rport->private; 479 480 if (!fd || !qpair) { 481 ql_log(ql_log_warn, NULL, 0x2134, 482 "NO NVMe request or Queue Handle\n"); 483 return rval; 484 } 485 486 priv = fd->private; 487 fcport = qla_rport->fcport; 488 if (!fcport) { 489 ql_log(ql_log_warn, NULL, 0x210e, "No fcport ptr\n"); 490 return rval; 491 } 492 493 vha = fcport->vha; 494 495 if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) 496 return rval; 497 498 /* 499 * If we know the dev is going away while the transport is still sending 500 * IO's return busy back to stall the IO Q. This happens when the 501 * link goes away and fw hasn't notified us yet, but IO's are being 502 * returned. If the dev comes back quickly we won't exhaust the IO 503 * retry count at the core. 504 */ 505 if (fcport->nvme_flag & NVME_FLAG_RESETTING) 506 return -EBUSY; 507 508 /* Alloc SRB structure */ 509 sp = qla2xxx_get_qpair_sp(qpair, fcport, GFP_ATOMIC); 510 if (!sp) 511 return -EBUSY; 512 513 atomic_set(&sp->ref_count, 1); 514 init_waitqueue_head(&sp->nvme_ls_waitq); 515 priv->sp = sp; 516 sp->type = SRB_NVME_CMD; 517 sp->name = "nvme_cmd"; 518 sp->done = qla_nvme_sp_done; 519 sp->qpair = qpair; 520 nvme = &sp->u.iocb_cmd; 521 nvme->u.nvme.desc = fd; 522 523 rval = qla2x00_start_nvme_mq(sp); 524 if (rval != QLA_SUCCESS) { 525 ql_log(ql_log_warn, vha, 0x212d, 526 "qla2x00_start_nvme_mq failed = %d\n", rval); 527 atomic_dec(&sp->ref_count); 528 wake_up(&sp->nvme_ls_waitq); 529 } 530 531 return rval; 532 } 533 534 static void qla_nvme_localport_delete(struct nvme_fc_local_port *lport) 535 { 536 struct scsi_qla_host *vha = lport->private; 537 538 ql_log(ql_log_info, vha, 0x210f, 539 "localport delete of %p completed.\n", vha->nvme_local_port); 540 vha->nvme_local_port = NULL; 541 complete(&vha->nvme_del_done); 542 } 543 544 static void qla_nvme_remoteport_delete(struct nvme_fc_remote_port *rport) 545 { 546 fc_port_t *fcport; 547 struct qla_nvme_rport *qla_rport = rport->private, *trport; 548 549 fcport = qla_rport->fcport; 550 fcport->nvme_remote_port = NULL; 551 fcport->nvme_flag &= ~NVME_FLAG_REGISTERED; 552 553 list_for_each_entry_safe(qla_rport, trport, 554 &fcport->vha->nvme_rport_list, list) { 555 if (qla_rport->fcport == fcport) { 556 list_del(&qla_rport->list); 557 break; 558 } 559 } 560 complete(&fcport->nvme_del_done); 561 562 if (!test_bit(UNLOADING, &fcport->vha->dpc_flags)) { 563 INIT_WORK(&fcport->free_work, qlt_free_session_done); 564 schedule_work(&fcport->free_work); 565 } 566 567 fcport->nvme_flag &= ~(NVME_FLAG_REGISTERED | NVME_FLAG_DELETING); 568 ql_log(ql_log_info, fcport->vha, 0x2110, 569 "remoteport_delete of %p completed.\n", fcport); 570 } 571 572 static struct nvme_fc_port_template qla_nvme_fc_transport = { 573 .localport_delete = qla_nvme_localport_delete, 574 .remoteport_delete = qla_nvme_remoteport_delete, 575 .create_queue = qla_nvme_alloc_queue, 576 .delete_queue = NULL, 577 .ls_req = qla_nvme_ls_req, 578 .ls_abort = qla_nvme_ls_abort, 579 .fcp_io = qla_nvme_post_cmd, 580 .fcp_abort = qla_nvme_fcp_abort, 581 .poll_queue = qla_nvme_poll, 582 .max_hw_queues = 8, 583 .max_sgl_segments = 128, 584 .max_dif_sgl_segments = 64, 585 .dma_boundary = 0xFFFFFFFF, 586 .local_priv_sz = 8, 587 .remote_priv_sz = sizeof(struct qla_nvme_rport), 588 .lsrqst_priv_sz = sizeof(struct nvme_private), 589 .fcprqst_priv_sz = sizeof(struct nvme_private), 590 }; 591 592 #define NVME_ABORT_POLLING_PERIOD 2 593 static int qla_nvme_wait_on_command(srb_t *sp) 594 { 595 int ret = QLA_SUCCESS; 596 597 wait_event_timeout(sp->nvme_ls_waitq, (atomic_read(&sp->ref_count) > 1), 598 NVME_ABORT_POLLING_PERIOD*HZ); 599 600 if (atomic_read(&sp->ref_count) > 1) 601 ret = QLA_FUNCTION_FAILED; 602 603 return ret; 604 } 605 606 void qla_nvme_abort(struct qla_hw_data *ha, struct srb *sp, int res) 607 { 608 int rval; 609 610 if (!test_bit(ABORT_ISP_ACTIVE, &sp->vha->dpc_flags)) { 611 rval = ha->isp_ops->abort_command(sp); 612 if (!rval && !qla_nvme_wait_on_command(sp)) 613 ql_log(ql_log_warn, NULL, 0x2112, 614 "timed out waiting on sp=%p\n", sp); 615 } else { 616 sp->done(sp, res); 617 } 618 } 619 620 static void qla_nvme_unregister_remote_port(struct work_struct *work) 621 { 622 struct fc_port *fcport = container_of(work, struct fc_port, 623 nvme_del_work); 624 struct qla_nvme_rport *qla_rport, *trport; 625 626 if (!IS_ENABLED(CONFIG_NVME_FC)) 627 return; 628 629 ql_log(ql_log_warn, NULL, 0x2112, 630 "%s: unregister remoteport on %p\n",__func__, fcport); 631 632 list_for_each_entry_safe(qla_rport, trport, 633 &fcport->vha->nvme_rport_list, list) { 634 if (qla_rport->fcport == fcport) { 635 ql_log(ql_log_info, fcport->vha, 0x2113, 636 "%s: fcport=%p\n", __func__, fcport); 637 init_completion(&fcport->nvme_del_done); 638 nvme_fc_unregister_remoteport( 639 fcport->nvme_remote_port); 640 wait_for_completion(&fcport->nvme_del_done); 641 break; 642 } 643 } 644 } 645 646 void qla_nvme_delete(struct scsi_qla_host *vha) 647 { 648 struct qla_nvme_rport *qla_rport, *trport; 649 fc_port_t *fcport; 650 int nv_ret; 651 652 if (!IS_ENABLED(CONFIG_NVME_FC)) 653 return; 654 655 list_for_each_entry_safe(qla_rport, trport, 656 &vha->nvme_rport_list, list) { 657 fcport = qla_rport->fcport; 658 659 ql_log(ql_log_info, fcport->vha, 0x2114, "%s: fcport=%p\n", 660 __func__, fcport); 661 662 nvme_fc_set_remoteport_devloss(fcport->nvme_remote_port, 0); 663 init_completion(&fcport->nvme_del_done); 664 nvme_fc_unregister_remoteport(fcport->nvme_remote_port); 665 wait_for_completion(&fcport->nvme_del_done); 666 } 667 668 if (vha->nvme_local_port) { 669 init_completion(&vha->nvme_del_done); 670 ql_log(ql_log_info, vha, 0x2116, 671 "unregister localport=%p\n", 672 vha->nvme_local_port); 673 nv_ret = nvme_fc_unregister_localport(vha->nvme_local_port); 674 if (nv_ret) 675 ql_log(ql_log_info, vha, 0x2115, 676 "Unregister of localport failed\n"); 677 else 678 wait_for_completion(&vha->nvme_del_done); 679 } 680 } 681 682 int qla_nvme_register_hba(struct scsi_qla_host *vha) 683 { 684 struct nvme_fc_port_template *tmpl; 685 struct qla_hw_data *ha; 686 struct nvme_fc_port_info pinfo; 687 int ret = EINVAL; 688 689 if (!IS_ENABLED(CONFIG_NVME_FC)) 690 return ret; 691 692 ha = vha->hw; 693 tmpl = &qla_nvme_fc_transport; 694 695 WARN_ON(vha->nvme_local_port); 696 WARN_ON(ha->max_req_queues < 3); 697 698 qla_nvme_fc_transport.max_hw_queues = 699 min((uint8_t)(qla_nvme_fc_transport.max_hw_queues), 700 (uint8_t)(ha->max_req_queues - 2)); 701 702 pinfo.node_name = wwn_to_u64(vha->node_name); 703 pinfo.port_name = wwn_to_u64(vha->port_name); 704 pinfo.port_role = FC_PORT_ROLE_NVME_INITIATOR; 705 pinfo.port_id = vha->d_id.b24; 706 707 ql_log(ql_log_info, vha, 0xffff, 708 "register_localport: host-traddr=nn-0x%llx:pn-0x%llx on portID:%x\n", 709 pinfo.node_name, pinfo.port_name, pinfo.port_id); 710 qla_nvme_fc_transport.dma_boundary = vha->host->dma_boundary; 711 712 ret = nvme_fc_register_localport(&pinfo, tmpl, 713 get_device(&ha->pdev->dev), &vha->nvme_local_port); 714 if (ret) { 715 ql_log(ql_log_warn, vha, 0xffff, 716 "register_localport failed: ret=%x\n", ret); 717 } else { 718 vha->nvme_local_port->private = vha; 719 } 720 721 return ret; 722 } 723