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[mirror_ubuntu-kernels.git] / drivers / scsi / qla2xxx / qla_nvme.c
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 if (fcport)
189 ql_dbg(ql_dbg_io, fcport->vha, 0xffff,
190 "%s called for sp=%p, hndl=%x on fcport=%p deleted=%d\n",
191 __func__, sp, sp->handle, fcport, fcport->deleted);
192
193 if (!ha->flags.fw_started && (fcport && fcport->deleted))
194 return;
195
196 rval = ha->isp_ops->abort_command(sp);
197
198 ql_dbg(ql_dbg_io, fcport->vha, 0x212b,
199 "%s: %s command for sp=%p, handle=%x on fcport=%p rval=%x\n",
200 __func__, (rval != QLA_SUCCESS) ? "Failed to abort" : "Aborted",
201 sp, sp->handle, fcport, rval);
202 }
203
204 static void qla_nvme_ls_abort(struct nvme_fc_local_port *lport,
205 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd)
206 {
207 struct nvme_private *priv = fd->private;
208
209 INIT_WORK(&priv->abort_work, qla_nvme_abort_work);
210 schedule_work(&priv->abort_work);
211 }
212
213 static void qla_nvme_ls_complete(struct work_struct *work)
214 {
215 struct nvme_private *priv =
216 container_of(work, struct nvme_private, ls_work);
217 struct nvmefc_ls_req *fd = priv->fd;
218
219 fd->done(fd, priv->comp_status);
220 }
221
222 static int qla_nvme_ls_req(struct nvme_fc_local_port *lport,
223 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd)
224 {
225 struct qla_nvme_rport *qla_rport = rport->private;
226 fc_port_t *fcport = qla_rport->fcport;
227 struct srb_iocb *nvme;
228 struct nvme_private *priv = fd->private;
229 struct scsi_qla_host *vha;
230 int rval = QLA_FUNCTION_FAILED;
231 struct qla_hw_data *ha;
232 srb_t *sp;
233
234 vha = fcport->vha;
235 ha = vha->hw;
236 /* Alloc SRB structure */
237 sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC);
238 if (!sp)
239 return rval;
240
241 sp->type = SRB_NVME_LS;
242 sp->name = "nvme_ls";
243 sp->done = qla_nvme_sp_ls_done;
244 atomic_set(&sp->ref_count, 1);
245 nvme = &sp->u.iocb_cmd;
246 priv->sp = sp;
247 priv->fd = fd;
248 INIT_WORK(&priv->ls_work, qla_nvme_ls_complete);
249 nvme->u.nvme.desc = fd;
250 nvme->u.nvme.dir = 0;
251 nvme->u.nvme.dl = 0;
252 nvme->u.nvme.cmd_len = fd->rqstlen;
253 nvme->u.nvme.rsp_len = fd->rsplen;
254 nvme->u.nvme.rsp_dma = fd->rspdma;
255 nvme->u.nvme.timeout_sec = fd->timeout;
256 nvme->u.nvme.cmd_dma = dma_map_single(&ha->pdev->dev, fd->rqstaddr,
257 fd->rqstlen, DMA_TO_DEVICE);
258 dma_sync_single_for_device(&ha->pdev->dev, nvme->u.nvme.cmd_dma,
259 fd->rqstlen, DMA_TO_DEVICE);
260
261 rval = qla2x00_start_sp(sp);
262 if (rval != QLA_SUCCESS) {
263 ql_log(ql_log_warn, vha, 0x700e,
264 "qla2x00_start_sp failed = %d\n", rval);
265 atomic_dec(&sp->ref_count);
266 wake_up(&sp->nvme_ls_waitq);
267 return rval;
268 }
269
270 return rval;
271 }
272
273 static void qla_nvme_fcp_abort(struct nvme_fc_local_port *lport,
274 struct nvme_fc_remote_port *rport, void *hw_queue_handle,
275 struct nvmefc_fcp_req *fd)
276 {
277 struct nvme_private *priv = fd->private;
278
279 INIT_WORK(&priv->abort_work, qla_nvme_abort_work);
280 schedule_work(&priv->abort_work);
281 }
282
283 static inline int qla2x00_start_nvme_mq(srb_t *sp)
284 {
285 unsigned long flags;
286 uint32_t *clr_ptr;
287 uint32_t index;
288 uint32_t handle;
289 struct cmd_nvme *cmd_pkt;
290 uint16_t cnt, i;
291 uint16_t req_cnt;
292 uint16_t tot_dsds;
293 uint16_t avail_dsds;
294 uint32_t *cur_dsd;
295 struct req_que *req = NULL;
296 struct scsi_qla_host *vha = sp->fcport->vha;
297 struct qla_hw_data *ha = vha->hw;
298 struct qla_qpair *qpair = sp->qpair;
299 struct srb_iocb *nvme = &sp->u.iocb_cmd;
300 struct scatterlist *sgl, *sg;
301 struct nvmefc_fcp_req *fd = nvme->u.nvme.desc;
302 uint32_t rval = QLA_SUCCESS;
303
304 /* Setup qpair pointers */
305 req = qpair->req;
306 tot_dsds = fd->sg_cnt;
307
308 /* Acquire qpair specific lock */
309 spin_lock_irqsave(&qpair->qp_lock, flags);
310
311 /* Check for room in outstanding command list. */
312 handle = req->current_outstanding_cmd;
313 for (index = 1; index < req->num_outstanding_cmds; index++) {
314 handle++;
315 if (handle == req->num_outstanding_cmds)
316 handle = 1;
317 if (!req->outstanding_cmds[handle])
318 break;
319 }
320
321 if (index == req->num_outstanding_cmds) {
322 rval = -EBUSY;
323 goto queuing_error;
324 }
325 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
326 if (req->cnt < (req_cnt + 2)) {
327 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
328 RD_REG_DWORD_RELAXED(req->req_q_out);
329
330 if (req->ring_index < cnt)
331 req->cnt = cnt - req->ring_index;
332 else
333 req->cnt = req->length - (req->ring_index - cnt);
334
335 if (req->cnt < (req_cnt + 2)){
336 rval = -EBUSY;
337 goto queuing_error;
338 }
339 }
340
341 if (unlikely(!fd->sqid)) {
342 struct nvme_fc_cmd_iu *cmd = fd->cmdaddr;
343 if (cmd->sqe.common.opcode == nvme_admin_async_event) {
344 nvme->u.nvme.aen_op = 1;
345 atomic_inc(&ha->nvme_active_aen_cnt);
346 }
347 }
348
349 /* Build command packet. */
350 req->current_outstanding_cmd = handle;
351 req->outstanding_cmds[handle] = sp;
352 sp->handle = handle;
353 req->cnt -= req_cnt;
354
355 cmd_pkt = (struct cmd_nvme *)req->ring_ptr;
356 cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
357
358 /* Zero out remaining portion of packet. */
359 clr_ptr = (uint32_t *)cmd_pkt + 2;
360 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
361
362 cmd_pkt->entry_status = 0;
363
364 /* Update entry type to indicate Command NVME IOCB */
365 cmd_pkt->entry_type = COMMAND_NVME;
366
367 /* No data transfer how do we check buffer len == 0?? */
368 if (fd->io_dir == NVMEFC_FCP_READ) {
369 cmd_pkt->control_flags = CF_READ_DATA;
370 vha->qla_stats.input_bytes += fd->payload_length;
371 vha->qla_stats.input_requests++;
372 } else if (fd->io_dir == NVMEFC_FCP_WRITE) {
373 cmd_pkt->control_flags = CF_WRITE_DATA;
374 if ((vha->flags.nvme_first_burst) &&
375 (sp->fcport->nvme_prli_service_param &
376 NVME_PRLI_SP_FIRST_BURST)) {
377 if ((fd->payload_length <=
378 sp->fcport->nvme_first_burst_size) ||
379 (sp->fcport->nvme_first_burst_size == 0))
380 cmd_pkt->control_flags |=
381 CF_NVME_FIRST_BURST_ENABLE;
382 }
383 vha->qla_stats.output_bytes += fd->payload_length;
384 vha->qla_stats.output_requests++;
385 } else if (fd->io_dir == 0) {
386 cmd_pkt->control_flags = 0;
387 }
388
389 /* Set NPORT-ID */
390 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
391 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
392 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
393 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
394 cmd_pkt->vp_index = sp->fcport->vha->vp_idx;
395
396 /* NVME RSP IU */
397 cmd_pkt->nvme_rsp_dsd_len = cpu_to_le16(fd->rsplen);
398 cmd_pkt->nvme_rsp_dseg_address[0] = cpu_to_le32(LSD(fd->rspdma));
399 cmd_pkt->nvme_rsp_dseg_address[1] = cpu_to_le32(MSD(fd->rspdma));
400
401 /* NVME CNMD IU */
402 cmd_pkt->nvme_cmnd_dseg_len = cpu_to_le16(fd->cmdlen);
403 cmd_pkt->nvme_cmnd_dseg_address[0] = cpu_to_le32(LSD(fd->cmddma));
404 cmd_pkt->nvme_cmnd_dseg_address[1] = cpu_to_le32(MSD(fd->cmddma));
405
406 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
407 cmd_pkt->byte_count = cpu_to_le32(fd->payload_length);
408
409 /* One DSD is available in the Command Type NVME IOCB */
410 avail_dsds = 1;
411 cur_dsd = (uint32_t *)&cmd_pkt->nvme_data_dseg_address[0];
412 sgl = fd->first_sgl;
413
414 /* Load data segments */
415 for_each_sg(sgl, sg, tot_dsds, i) {
416 dma_addr_t sle_dma;
417 cont_a64_entry_t *cont_pkt;
418
419 /* Allocate additional continuation packets? */
420 if (avail_dsds == 0) {
421 /*
422 * Five DSDs are available in the Continuation
423 * Type 1 IOCB.
424 */
425
426 /* Adjust ring index */
427 req->ring_index++;
428 if (req->ring_index == req->length) {
429 req->ring_index = 0;
430 req->ring_ptr = req->ring;
431 } else {
432 req->ring_ptr++;
433 }
434 cont_pkt = (cont_a64_entry_t *)req->ring_ptr;
435 *((uint32_t *)(&cont_pkt->entry_type)) =
436 cpu_to_le32(CONTINUE_A64_TYPE);
437
438 cur_dsd = (uint32_t *)cont_pkt->dseg_0_address;
439 avail_dsds = 5;
440 }
441
442 sle_dma = sg_dma_address(sg);
443 *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
444 *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
445 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
446 avail_dsds--;
447 }
448
449 /* Set total entry count. */
450 cmd_pkt->entry_count = (uint8_t)req_cnt;
451 wmb();
452
453 /* Adjust ring index. */
454 req->ring_index++;
455 if (req->ring_index == req->length) {
456 req->ring_index = 0;
457 req->ring_ptr = req->ring;
458 } else {
459 req->ring_ptr++;
460 }
461
462 /* Set chip new ring index. */
463 WRT_REG_DWORD(req->req_q_in, req->ring_index);
464
465 queuing_error:
466 spin_unlock_irqrestore(&qpair->qp_lock, flags);
467 return rval;
468 }
469
470 /* Post a command */
471 static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport,
472 struct nvme_fc_remote_port *rport, void *hw_queue_handle,
473 struct nvmefc_fcp_req *fd)
474 {
475 fc_port_t *fcport;
476 struct srb_iocb *nvme;
477 struct scsi_qla_host *vha;
478 int rval = -ENODEV;
479 srb_t *sp;
480 struct qla_qpair *qpair = hw_queue_handle;
481 struct nvme_private *priv = fd->private;
482 struct qla_nvme_rport *qla_rport = rport->private;
483
484 fcport = qla_rport->fcport;
485
486 vha = fcport->vha;
487
488 if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
489 return rval;
490
491 /*
492 * If we know the dev is going away while the transport is still sending
493 * IO's return busy back to stall the IO Q. This happens when the
494 * link goes away and fw hasn't notified us yet, but IO's are being
495 * returned. If the dev comes back quickly we won't exhaust the IO
496 * retry count at the core.
497 */
498 if (fcport->nvme_flag & NVME_FLAG_RESETTING)
499 return -EBUSY;
500
501 /* Alloc SRB structure */
502 sp = qla2xxx_get_qpair_sp(vha, qpair, fcport, GFP_ATOMIC);
503 if (!sp)
504 return -EBUSY;
505
506 atomic_set(&sp->ref_count, 1);
507 init_waitqueue_head(&sp->nvme_ls_waitq);
508 priv->sp = sp;
509 sp->type = SRB_NVME_CMD;
510 sp->name = "nvme_cmd";
511 sp->done = qla_nvme_sp_done;
512 sp->qpair = qpair;
513 sp->vha = vha;
514 nvme = &sp->u.iocb_cmd;
515 nvme->u.nvme.desc = fd;
516
517 rval = qla2x00_start_nvme_mq(sp);
518 if (rval != QLA_SUCCESS) {
519 ql_log(ql_log_warn, vha, 0x212d,
520 "qla2x00_start_nvme_mq failed = %d\n", rval);
521 atomic_dec(&sp->ref_count);
522 wake_up(&sp->nvme_ls_waitq);
523 }
524
525 return rval;
526 }
527
528 static void qla_nvme_localport_delete(struct nvme_fc_local_port *lport)
529 {
530 struct scsi_qla_host *vha = lport->private;
531
532 ql_log(ql_log_info, vha, 0x210f,
533 "localport delete of %p completed.\n", vha->nvme_local_port);
534 vha->nvme_local_port = NULL;
535 complete(&vha->nvme_del_done);
536 }
537
538 static void qla_nvme_remoteport_delete(struct nvme_fc_remote_port *rport)
539 {
540 fc_port_t *fcport;
541 struct qla_nvme_rport *qla_rport = rport->private, *trport;
542
543 fcport = qla_rport->fcport;
544 fcport->nvme_remote_port = NULL;
545 fcport->nvme_flag &= ~NVME_FLAG_REGISTERED;
546
547 list_for_each_entry_safe(qla_rport, trport,
548 &fcport->vha->nvme_rport_list, list) {
549 if (qla_rport->fcport == fcport) {
550 list_del(&qla_rport->list);
551 break;
552 }
553 }
554 complete(&fcport->nvme_del_done);
555
556 if (!test_bit(UNLOADING, &fcport->vha->dpc_flags)) {
557 INIT_WORK(&fcport->free_work, qlt_free_session_done);
558 schedule_work(&fcport->free_work);
559 }
560
561 fcport->nvme_flag &= ~NVME_FLAG_DELETING;
562 ql_log(ql_log_info, fcport->vha, 0x2110,
563 "remoteport_delete of %p completed.\n", fcport);
564 }
565
566 static struct nvme_fc_port_template qla_nvme_fc_transport = {
567 .localport_delete = qla_nvme_localport_delete,
568 .remoteport_delete = qla_nvme_remoteport_delete,
569 .create_queue = qla_nvme_alloc_queue,
570 .delete_queue = NULL,
571 .ls_req = qla_nvme_ls_req,
572 .ls_abort = qla_nvme_ls_abort,
573 .fcp_io = qla_nvme_post_cmd,
574 .fcp_abort = qla_nvme_fcp_abort,
575 .max_hw_queues = 8,
576 .max_sgl_segments = 128,
577 .max_dif_sgl_segments = 64,
578 .dma_boundary = 0xFFFFFFFF,
579 .local_priv_sz = 8,
580 .remote_priv_sz = sizeof(struct qla_nvme_rport),
581 .lsrqst_priv_sz = sizeof(struct nvme_private),
582 .fcprqst_priv_sz = sizeof(struct nvme_private),
583 };
584
585 #define NVME_ABORT_POLLING_PERIOD 2
586 static int qla_nvme_wait_on_command(srb_t *sp)
587 {
588 int ret = QLA_SUCCESS;
589
590 wait_event_timeout(sp->nvme_ls_waitq, (atomic_read(&sp->ref_count) > 1),
591 NVME_ABORT_POLLING_PERIOD*HZ);
592
593 if (atomic_read(&sp->ref_count) > 1)
594 ret = QLA_FUNCTION_FAILED;
595
596 return ret;
597 }
598
599 void qla_nvme_abort(struct qla_hw_data *ha, struct srb *sp, int res)
600 {
601 int rval;
602
603 if (ha->flags.fw_started) {
604 rval = ha->isp_ops->abort_command(sp);
605 if (!rval && !qla_nvme_wait_on_command(sp))
606 ql_log(ql_log_warn, NULL, 0x2112,
607 "timed out waiting on sp=%p\n", sp);
608 } else {
609 sp->done(sp, res);
610 }
611 }
612
613 static void qla_nvme_unregister_remote_port(struct work_struct *work)
614 {
615 struct fc_port *fcport = container_of(work, struct fc_port,
616 nvme_del_work);
617 struct qla_nvme_rport *qla_rport, *trport;
618 scsi_qla_host_t *base_vha;
619
620 if (!IS_ENABLED(CONFIG_NVME_FC))
621 return;
622
623 ql_log(ql_log_warn, NULL, 0x2112,
624 "%s: unregister remoteport on %p\n",__func__, fcport);
625
626 base_vha = pci_get_drvdata(fcport->vha->hw->pdev);
627 if (test_bit(PFLG_DRIVER_REMOVING, &base_vha->pci_flags)) {
628 ql_dbg(ql_dbg_disc, fcport->vha, 0x2114,
629 "%s: Notify FC-NVMe transport, set devloss=0\n",
630 __func__);
631
632 nvme_fc_set_remoteport_devloss(fcport->nvme_remote_port, 0);
633 }
634
635 list_for_each_entry_safe(qla_rport, trport,
636 &fcport->vha->nvme_rport_list, list) {
637 if (qla_rport->fcport == fcport) {
638 ql_log(ql_log_info, fcport->vha, 0x2113,
639 "%s: fcport=%p\n", __func__, fcport);
640 init_completion(&fcport->nvme_del_done);
641 nvme_fc_unregister_remoteport(
642 fcport->nvme_remote_port);
643 wait_for_completion(&fcport->nvme_del_done);
644 break;
645 }
646 }
647 }
648
649 void qla_nvme_delete(struct scsi_qla_host *vha)
650 {
651 int nv_ret;
652
653 if (!IS_ENABLED(CONFIG_NVME_FC))
654 return;
655
656 if (vha->nvme_local_port) {
657 init_completion(&vha->nvme_del_done);
658 ql_log(ql_log_info, vha, 0x2116,
659 "unregister localport=%p\n",
660 vha->nvme_local_port);
661 nv_ret = nvme_fc_unregister_localport(vha->nvme_local_port);
662 if (nv_ret)
663 ql_log(ql_log_info, vha, 0x2115,
664 "Unregister of localport failed\n");
665 else
666 wait_for_completion(&vha->nvme_del_done);
667 }
668 }
669
670 int qla_nvme_register_hba(struct scsi_qla_host *vha)
671 {
672 struct nvme_fc_port_template *tmpl;
673 struct qla_hw_data *ha;
674 struct nvme_fc_port_info pinfo;
675 int ret = EINVAL;
676
677 if (!IS_ENABLED(CONFIG_NVME_FC))
678 return ret;
679
680 ha = vha->hw;
681 tmpl = &qla_nvme_fc_transport;
682
683 WARN_ON(vha->nvme_local_port);
684 WARN_ON(ha->max_req_queues < 3);
685
686 qla_nvme_fc_transport.max_hw_queues =
687 min((uint8_t)(qla_nvme_fc_transport.max_hw_queues),
688 (uint8_t)(ha->max_req_queues - 2));
689
690 pinfo.node_name = wwn_to_u64(vha->node_name);
691 pinfo.port_name = wwn_to_u64(vha->port_name);
692 pinfo.port_role = FC_PORT_ROLE_NVME_INITIATOR;
693 pinfo.port_id = vha->d_id.b24;
694
695 ql_log(ql_log_info, vha, 0xffff,
696 "register_localport: host-traddr=nn-0x%llx:pn-0x%llx on portID:%x\n",
697 pinfo.node_name, pinfo.port_name, pinfo.port_id);
698 qla_nvme_fc_transport.dma_boundary = vha->host->dma_boundary;
699
700 ret = nvme_fc_register_localport(&pinfo, tmpl,
701 get_device(&ha->pdev->dev), &vha->nvme_local_port);
702 if (ret) {
703 ql_log(ql_log_warn, vha, 0xffff,
704 "register_localport failed: ret=%x\n", ret);
705 } else {
706 vha->nvme_local_port->private = vha;
707 }
708
709 return ret;
710 }
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