1
2
3
4
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 (!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
87static 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 if (!qidx)
95 qidx++;
96
97 vha = (struct scsi_qla_host *)lport->private;
98 ha = vha->hw;
99
100 ql_log(ql_log_info, vha, 0x2104,
101 "%s: handle %p, idx =%d, qsize %d\n",
102 __func__, handle, qidx, qsize);
103
104 if (qidx > qla_nvme_fc_transport.max_hw_queues) {
105 ql_log(ql_log_warn, vha, 0x212f,
106 "%s: Illegal qidx=%d. Max=%d\n",
107 __func__, qidx, qla_nvme_fc_transport.max_hw_queues);
108 return -EINVAL;
109 }
110
111 if (ha->queue_pair_map[qidx]) {
112 *handle = ha->queue_pair_map[qidx];
113 ql_log(ql_log_info, vha, 0x2121,
114 "Returning existing qpair of %p for idx=%x\n",
115 *handle, qidx);
116 return 0;
117 }
118
119 qpair = qla2xxx_create_qpair(vha, 5, vha->vp_idx, true);
120 if (qpair == NULL) {
121 ql_log(ql_log_warn, vha, 0x2122,
122 "Failed to allocate qpair\n");
123 return -EINVAL;
124 }
125 *handle = qpair;
126
127 return 0;
128}
129
130static void qla_nvme_release_fcp_cmd_kref(struct kref *kref)
131{
132 struct srb *sp = container_of(kref, struct srb, cmd_kref);
133 struct nvme_private *priv = (struct nvme_private *)sp->priv;
134 struct nvmefc_fcp_req *fd;
135 struct srb_iocb *nvme;
136 unsigned long flags;
137
138 if (!priv)
139 goto out;
140
141 nvme = &sp->u.iocb_cmd;
142 fd = nvme->u.nvme.desc;
143
144 spin_lock_irqsave(&priv->cmd_lock, flags);
145 priv->sp = NULL;
146 sp->priv = NULL;
147 if (priv->comp_status == QLA_SUCCESS) {
148 fd->rcv_rsplen = le16_to_cpu(nvme->u.nvme.rsp_pyld_len);
149 fd->status = NVME_SC_SUCCESS;
150 } else {
151 fd->rcv_rsplen = 0;
152 fd->transferred_length = 0;
153 fd->status = NVME_SC_INTERNAL;
154 }
155 spin_unlock_irqrestore(&priv->cmd_lock, flags);
156
157 fd->done(fd);
158out:
159 qla2xxx_rel_qpair_sp(sp->qpair, sp);
160}
161
162static void qla_nvme_release_ls_cmd_kref(struct kref *kref)
163{
164 struct srb *sp = container_of(kref, struct srb, cmd_kref);
165 struct nvme_private *priv = (struct nvme_private *)sp->priv;
166 struct nvmefc_ls_req *fd;
167 unsigned long flags;
168
169 if (!priv)
170 goto out;
171
172 spin_lock_irqsave(&priv->cmd_lock, flags);
173 priv->sp = NULL;
174 sp->priv = NULL;
175 spin_unlock_irqrestore(&priv->cmd_lock, flags);
176
177 fd = priv->fd;
178 fd->done(fd, priv->comp_status);
179out:
180 qla2x00_rel_sp(sp);
181}
182
183static void qla_nvme_ls_complete(struct work_struct *work)
184{
185 struct nvme_private *priv =
186 container_of(work, struct nvme_private, ls_work);
187
188 kref_put(&priv->sp->cmd_kref, qla_nvme_release_ls_cmd_kref);
189}
190
191static void qla_nvme_sp_ls_done(srb_t *sp, int res)
192{
193 struct nvme_private *priv = sp->priv;
194
195 if (WARN_ON_ONCE(kref_read(&sp->cmd_kref) == 0))
196 return;
197
198 if (res)
199 res = -EINVAL;
200
201 priv->comp_status = res;
202 INIT_WORK(&priv->ls_work, qla_nvme_ls_complete);
203 schedule_work(&priv->ls_work);
204}
205
206
207static void qla_nvme_sp_done(srb_t *sp, int res)
208{
209 struct nvme_private *priv = sp->priv;
210
211 priv->comp_status = res;
212 kref_put(&sp->cmd_kref, qla_nvme_release_fcp_cmd_kref);
213
214 return;
215}
216
217static void qla_nvme_abort_work(struct work_struct *work)
218{
219 struct nvme_private *priv =
220 container_of(work, struct nvme_private, abort_work);
221 srb_t *sp = priv->sp;
222 fc_port_t *fcport = sp->fcport;
223 struct qla_hw_data *ha = fcport->vha->hw;
224 int rval;
225
226 ql_dbg(ql_dbg_io, fcport->vha, 0xffff,
227 "%s called for sp=%p, hndl=%x on fcport=%p deleted=%d\n",
228 __func__, sp, sp->handle, fcport, fcport->deleted);
229
230 if (!ha->flags.fw_started || fcport->deleted)
231 goto out;
232
233 if (ha->flags.host_shutting_down) {
234 ql_log(ql_log_info, sp->fcport->vha, 0xffff,
235 "%s Calling done on sp: %p, type: 0x%x\n",
236 __func__, sp, sp->type);
237 sp->done(sp, 0);
238 goto out;
239 }
240
241 rval = ha->isp_ops->abort_command(sp);
242
243 ql_dbg(ql_dbg_io, fcport->vha, 0x212b,
244 "%s: %s command for sp=%p, handle=%x on fcport=%p rval=%x\n",
245 __func__, (rval != QLA_SUCCESS) ? "Failed to abort" : "Aborted",
246 sp, sp->handle, fcport, rval);
247
248
249
250
251
252
253 if (ql2xabts_wait_nvme && QLA_ABTS_WAIT_ENABLED(sp))
254 return;
255out:
256
257 kref_put(&sp->cmd_kref, sp->put_fn);
258}
259
260static void qla_nvme_ls_abort(struct nvme_fc_local_port *lport,
261 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd)
262{
263 struct nvme_private *priv = fd->private;
264 unsigned long flags;
265
266 spin_lock_irqsave(&priv->cmd_lock, flags);
267 if (!priv->sp) {
268 spin_unlock_irqrestore(&priv->cmd_lock, flags);
269 return;
270 }
271
272 if (!kref_get_unless_zero(&priv->sp->cmd_kref)) {
273 spin_unlock_irqrestore(&priv->cmd_lock, flags);
274 return;
275 }
276 spin_unlock_irqrestore(&priv->cmd_lock, flags);
277
278 INIT_WORK(&priv->abort_work, qla_nvme_abort_work);
279 schedule_work(&priv->abort_work);
280}
281
282static int qla_nvme_ls_req(struct nvme_fc_local_port *lport,
283 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd)
284{
285 struct qla_nvme_rport *qla_rport = rport->private;
286 fc_port_t *fcport = qla_rport->fcport;
287 struct srb_iocb *nvme;
288 struct nvme_private *priv = fd->private;
289 struct scsi_qla_host *vha;
290 int rval = QLA_FUNCTION_FAILED;
291 struct qla_hw_data *ha;
292 srb_t *sp;
293
294 if (!fcport || fcport->deleted)
295 return rval;
296
297 vha = fcport->vha;
298 ha = vha->hw;
299
300 if (!ha->flags.fw_started)
301 return rval;
302
303
304 sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC);
305 if (!sp)
306 return rval;
307
308 sp->type = SRB_NVME_LS;
309 sp->name = "nvme_ls";
310 sp->done = qla_nvme_sp_ls_done;
311 sp->put_fn = qla_nvme_release_ls_cmd_kref;
312 sp->priv = priv;
313 priv->sp = sp;
314 kref_init(&sp->cmd_kref);
315 spin_lock_init(&priv->cmd_lock);
316 nvme = &sp->u.iocb_cmd;
317 priv->fd = fd;
318 nvme->u.nvme.desc = fd;
319 nvme->u.nvme.dir = 0;
320 nvme->u.nvme.dl = 0;
321 nvme->u.nvme.cmd_len = fd->rqstlen;
322 nvme->u.nvme.rsp_len = fd->rsplen;
323 nvme->u.nvme.rsp_dma = fd->rspdma;
324 nvme->u.nvme.timeout_sec = fd->timeout;
325 nvme->u.nvme.cmd_dma = dma_map_single(&ha->pdev->dev, fd->rqstaddr,
326 fd->rqstlen, DMA_TO_DEVICE);
327 dma_sync_single_for_device(&ha->pdev->dev, nvme->u.nvme.cmd_dma,
328 fd->rqstlen, DMA_TO_DEVICE);
329
330 rval = qla2x00_start_sp(sp);
331 if (rval != QLA_SUCCESS) {
332 ql_log(ql_log_warn, vha, 0x700e,
333 "qla2x00_start_sp failed = %d\n", rval);
334 wake_up(&sp->nvme_ls_waitq);
335 sp->priv = NULL;
336 priv->sp = NULL;
337 qla2x00_rel_sp(sp);
338 return rval;
339 }
340
341 return rval;
342}
343
344static void qla_nvme_fcp_abort(struct nvme_fc_local_port *lport,
345 struct nvme_fc_remote_port *rport, void *hw_queue_handle,
346 struct nvmefc_fcp_req *fd)
347{
348 struct nvme_private *priv = fd->private;
349 unsigned long flags;
350
351 spin_lock_irqsave(&priv->cmd_lock, flags);
352 if (!priv->sp) {
353 spin_unlock_irqrestore(&priv->cmd_lock, flags);
354 return;
355 }
356 if (!kref_get_unless_zero(&priv->sp->cmd_kref)) {
357 spin_unlock_irqrestore(&priv->cmd_lock, flags);
358 return;
359 }
360 spin_unlock_irqrestore(&priv->cmd_lock, flags);
361
362 INIT_WORK(&priv->abort_work, qla_nvme_abort_work);
363 schedule_work(&priv->abort_work);
364}
365
366static inline int qla2x00_start_nvme_mq(srb_t *sp)
367{
368 unsigned long flags;
369 uint32_t *clr_ptr;
370 uint32_t handle;
371 struct cmd_nvme *cmd_pkt;
372 uint16_t cnt, i;
373 uint16_t req_cnt;
374 uint16_t tot_dsds;
375 uint16_t avail_dsds;
376 struct dsd64 *cur_dsd;
377 struct req_que *req = NULL;
378 struct scsi_qla_host *vha = sp->fcport->vha;
379 struct qla_hw_data *ha = vha->hw;
380 struct qla_qpair *qpair = sp->qpair;
381 struct srb_iocb *nvme = &sp->u.iocb_cmd;
382 struct scatterlist *sgl, *sg;
383 struct nvmefc_fcp_req *fd = nvme->u.nvme.desc;
384 struct nvme_fc_cmd_iu *cmd = fd->cmdaddr;
385 uint32_t rval = QLA_SUCCESS;
386
387
388 req = qpair->req;
389 tot_dsds = fd->sg_cnt;
390
391
392 spin_lock_irqsave(&qpair->qp_lock, flags);
393
394 handle = qla2xxx_get_next_handle(req);
395 if (handle == 0) {
396 rval = -EBUSY;
397 goto queuing_error;
398 }
399 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
400 if (req->cnt < (req_cnt + 2)) {
401 if (IS_SHADOW_REG_CAPABLE(ha)) {
402 cnt = *req->out_ptr;
403 } else {
404 cnt = rd_reg_dword_relaxed(req->req_q_out);
405 if (qla2x00_check_reg16_for_disconnect(vha, cnt))
406 goto queuing_error;
407 }
408
409 if (req->ring_index < cnt)
410 req->cnt = cnt - req->ring_index;
411 else
412 req->cnt = req->length - (req->ring_index - cnt);
413
414 if (req->cnt < (req_cnt + 2)){
415 rval = -EBUSY;
416 goto queuing_error;
417 }
418 }
419
420 if (unlikely(!fd->sqid)) {
421 if (cmd->sqe.common.opcode == nvme_admin_async_event) {
422 nvme->u.nvme.aen_op = 1;
423 atomic_inc(&ha->nvme_active_aen_cnt);
424 }
425 }
426
427
428 req->current_outstanding_cmd = handle;
429 req->outstanding_cmds[handle] = sp;
430 sp->handle = handle;
431 req->cnt -= req_cnt;
432
433 cmd_pkt = (struct cmd_nvme *)req->ring_ptr;
434 cmd_pkt->handle = make_handle(req->id, handle);
435
436
437 clr_ptr = (uint32_t *)cmd_pkt + 2;
438 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
439
440 cmd_pkt->entry_status = 0;
441
442
443 cmd_pkt->entry_type = COMMAND_NVME;
444
445
446 if (fd->io_dir == NVMEFC_FCP_READ) {
447 cmd_pkt->control_flags = cpu_to_le16(CF_READ_DATA);
448 qpair->counters.input_bytes += fd->payload_length;
449 qpair->counters.input_requests++;
450 } else if (fd->io_dir == NVMEFC_FCP_WRITE) {
451 cmd_pkt->control_flags = cpu_to_le16(CF_WRITE_DATA);
452 if ((vha->flags.nvme_first_burst) &&
453 (sp->fcport->nvme_prli_service_param &
454 NVME_PRLI_SP_FIRST_BURST)) {
455 if ((fd->payload_length <=
456 sp->fcport->nvme_first_burst_size) ||
457 (sp->fcport->nvme_first_burst_size == 0))
458 cmd_pkt->control_flags |=
459 cpu_to_le16(CF_NVME_FIRST_BURST_ENABLE);
460 }
461 qpair->counters.output_bytes += fd->payload_length;
462 qpair->counters.output_requests++;
463 } else if (fd->io_dir == 0) {
464 cmd_pkt->control_flags = 0;
465 }
466
467 if (vha->flags.nvme2_enabled &&
468 cmd->sqe.common.opcode == nvme_admin_async_event) {
469 cmd_pkt->control_flags |= cpu_to_le16(CF_ADMIN_ASYNC_EVENT);
470 }
471
472
473 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
474 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
475 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
476 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
477 cmd_pkt->vp_index = sp->fcport->vha->vp_idx;
478
479
480 cmd_pkt->nvme_rsp_dsd_len = cpu_to_le16(fd->rsplen);
481 put_unaligned_le64(fd->rspdma, &cmd_pkt->nvme_rsp_dseg_address);
482
483
484 cmd_pkt->nvme_cmnd_dseg_len = cpu_to_le16(fd->cmdlen);
485 cmd_pkt->nvme_cmnd_dseg_address = cpu_to_le64(fd->cmddma);
486
487 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
488 cmd_pkt->byte_count = cpu_to_le32(fd->payload_length);
489
490
491 avail_dsds = 1;
492 cur_dsd = &cmd_pkt->nvme_dsd;
493 sgl = fd->first_sgl;
494
495
496 for_each_sg(sgl, sg, tot_dsds, i) {
497 cont_a64_entry_t *cont_pkt;
498
499
500 if (avail_dsds == 0) {
501
502
503
504
505
506
507 req->ring_index++;
508 if (req->ring_index == req->length) {
509 req->ring_index = 0;
510 req->ring_ptr = req->ring;
511 } else {
512 req->ring_ptr++;
513 }
514 cont_pkt = (cont_a64_entry_t *)req->ring_ptr;
515 put_unaligned_le32(CONTINUE_A64_TYPE,
516 &cont_pkt->entry_type);
517
518 cur_dsd = cont_pkt->dsd;
519 avail_dsds = ARRAY_SIZE(cont_pkt->dsd);
520 }
521
522 append_dsd64(&cur_dsd, sg);
523 avail_dsds--;
524 }
525
526
527 cmd_pkt->entry_count = (uint8_t)req_cnt;
528 wmb();
529
530
531 req->ring_index++;
532 if (req->ring_index == req->length) {
533 req->ring_index = 0;
534 req->ring_ptr = req->ring;
535 } else {
536 req->ring_ptr++;
537 }
538
539
540 if (!nvme->u.nvme.aen_op)
541 sp->qpair->cmd_cnt++;
542
543
544 wrt_reg_dword(req->req_q_in, req->ring_index);
545
546queuing_error:
547 spin_unlock_irqrestore(&qpair->qp_lock, flags);
548
549 return rval;
550}
551
552
553static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport,
554 struct nvme_fc_remote_port *rport, void *hw_queue_handle,
555 struct nvmefc_fcp_req *fd)
556{
557 fc_port_t *fcport;
558 struct srb_iocb *nvme;
559 struct scsi_qla_host *vha;
560 int rval;
561 srb_t *sp;
562 struct qla_qpair *qpair = hw_queue_handle;
563 struct nvme_private *priv = fd->private;
564 struct qla_nvme_rport *qla_rport = rport->private;
565
566 if (!priv) {
567
568 return -ENODEV;
569 }
570
571 fcport = qla_rport->fcport;
572
573 if (unlikely(!qpair || !fcport || fcport->deleted))
574 return -EBUSY;
575
576 if (!(fcport->nvme_flag & NVME_FLAG_REGISTERED))
577 return -ENODEV;
578
579 vha = fcport->vha;
580
581 if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
582 return -EBUSY;
583
584
585
586
587
588
589
590
591 if (fcport->nvme_flag & NVME_FLAG_RESETTING)
592 return -EBUSY;
593
594
595 sp = qla2xxx_get_qpair_sp(vha, qpair, fcport, GFP_ATOMIC);
596 if (!sp)
597 return -EBUSY;
598
599 init_waitqueue_head(&sp->nvme_ls_waitq);
600 kref_init(&sp->cmd_kref);
601 spin_lock_init(&priv->cmd_lock);
602 sp->priv = priv;
603 priv->sp = sp;
604 sp->type = SRB_NVME_CMD;
605 sp->name = "nvme_cmd";
606 sp->done = qla_nvme_sp_done;
607 sp->put_fn = qla_nvme_release_fcp_cmd_kref;
608 sp->qpair = qpair;
609 sp->vha = vha;
610 sp->cmd_sp = sp;
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_log(ql_log_warn, vha, 0x212d,
617 "qla2x00_start_nvme_mq failed = %d\n", rval);
618 wake_up(&sp->nvme_ls_waitq);
619 sp->priv = NULL;
620 priv->sp = NULL;
621 qla2xxx_rel_qpair_sp(sp->qpair, sp);
622 }
623
624 return rval;
625}
626
627static void qla_nvme_localport_delete(struct nvme_fc_local_port *lport)
628{
629 struct scsi_qla_host *vha = lport->private;
630
631 ql_log(ql_log_info, vha, 0x210f,
632 "localport delete of %p completed.\n", vha->nvme_local_port);
633 vha->nvme_local_port = NULL;
634 complete(&vha->nvme_del_done);
635}
636
637static void qla_nvme_remoteport_delete(struct nvme_fc_remote_port *rport)
638{
639 fc_port_t *fcport;
640 struct qla_nvme_rport *qla_rport = rport->private;
641
642 fcport = qla_rport->fcport;
643 fcport->nvme_remote_port = NULL;
644 fcport->nvme_flag &= ~NVME_FLAG_REGISTERED;
645 fcport->nvme_flag &= ~NVME_FLAG_DELETING;
646 ql_log(ql_log_info, fcport->vha, 0x2110,
647 "remoteport_delete of %p %8phN completed.\n",
648 fcport, fcport->port_name);
649 complete(&fcport->nvme_del_done);
650}
651
652static struct nvme_fc_port_template qla_nvme_fc_transport = {
653 .localport_delete = qla_nvme_localport_delete,
654 .remoteport_delete = qla_nvme_remoteport_delete,
655 .create_queue = qla_nvme_alloc_queue,
656 .delete_queue = NULL,
657 .ls_req = qla_nvme_ls_req,
658 .ls_abort = qla_nvme_ls_abort,
659 .fcp_io = qla_nvme_post_cmd,
660 .fcp_abort = qla_nvme_fcp_abort,
661 .max_hw_queues = 8,
662 .max_sgl_segments = 1024,
663 .max_dif_sgl_segments = 64,
664 .dma_boundary = 0xFFFFFFFF,
665 .local_priv_sz = 8,
666 .remote_priv_sz = sizeof(struct qla_nvme_rport),
667 .lsrqst_priv_sz = sizeof(struct nvme_private),
668 .fcprqst_priv_sz = sizeof(struct nvme_private),
669};
670
671void qla_nvme_unregister_remote_port(struct fc_port *fcport)
672{
673 int ret;
674
675 if (!IS_ENABLED(CONFIG_NVME_FC))
676 return;
677
678 ql_log(ql_log_warn, fcport->vha, 0x2112,
679 "%s: unregister remoteport on %p %8phN\n",
680 __func__, fcport, fcport->port_name);
681
682 if (test_bit(PFLG_DRIVER_REMOVING, &fcport->vha->pci_flags))
683 nvme_fc_set_remoteport_devloss(fcport->nvme_remote_port, 0);
684
685 init_completion(&fcport->nvme_del_done);
686 ret = nvme_fc_unregister_remoteport(fcport->nvme_remote_port);
687 if (ret)
688 ql_log(ql_log_info, fcport->vha, 0x2114,
689 "%s: Failed to unregister nvme_remote_port (%d)\n",
690 __func__, ret);
691 wait_for_completion(&fcport->nvme_del_done);
692}
693
694void qla_nvme_delete(struct scsi_qla_host *vha)
695{
696 int nv_ret;
697
698 if (!IS_ENABLED(CONFIG_NVME_FC))
699 return;
700
701 if (vha->nvme_local_port) {
702 init_completion(&vha->nvme_del_done);
703 ql_log(ql_log_info, vha, 0x2116,
704 "unregister localport=%p\n",
705 vha->nvme_local_port);
706 nv_ret = nvme_fc_unregister_localport(vha->nvme_local_port);
707 if (nv_ret)
708 ql_log(ql_log_info, vha, 0x2115,
709 "Unregister of localport failed\n");
710 else
711 wait_for_completion(&vha->nvme_del_done);
712 }
713}
714
715int qla_nvme_register_hba(struct scsi_qla_host *vha)
716{
717 struct nvme_fc_port_template *tmpl;
718 struct qla_hw_data *ha;
719 struct nvme_fc_port_info pinfo;
720 int ret = -EINVAL;
721
722 if (!IS_ENABLED(CONFIG_NVME_FC))
723 return ret;
724
725 ha = vha->hw;
726 tmpl = &qla_nvme_fc_transport;
727
728 WARN_ON(vha->nvme_local_port);
729
730 if (ha->max_req_queues < 3) {
731 if (!ha->flags.max_req_queue_warned)
732 ql_log(ql_log_info, vha, 0x2120,
733 "%s: Disabling FC-NVME due to lack of free queue pairs (%d).\n",
734 __func__, ha->max_req_queues);
735 ha->flags.max_req_queue_warned = 1;
736 return ret;
737 }
738
739 qla_nvme_fc_transport.max_hw_queues =
740 min((uint8_t)(qla_nvme_fc_transport.max_hw_queues),
741 (uint8_t)(ha->max_req_queues - 2));
742
743 pinfo.node_name = wwn_to_u64(vha->node_name);
744 pinfo.port_name = wwn_to_u64(vha->port_name);
745 pinfo.port_role = FC_PORT_ROLE_NVME_INITIATOR;
746 pinfo.port_id = vha->d_id.b24;
747
748 ql_log(ql_log_info, vha, 0xffff,
749 "register_localport: host-traddr=nn-0x%llx:pn-0x%llx on portID:%x\n",
750 pinfo.node_name, pinfo.port_name, pinfo.port_id);
751 qla_nvme_fc_transport.dma_boundary = vha->host->dma_boundary;
752
753 ret = nvme_fc_register_localport(&pinfo, tmpl,
754 get_device(&ha->pdev->dev), &vha->nvme_local_port);
755 if (ret) {
756 ql_log(ql_log_warn, vha, 0xffff,
757 "register_localport failed: ret=%x\n", ret);
758 } else {
759 vha->nvme_local_port->private = vha;
760 }
761
762 return ret;
763}
764
765void qla_nvme_abort_set_option(struct abort_entry_24xx *abt, srb_t *orig_sp)
766{
767 struct qla_hw_data *ha;
768
769 if (!(ql2xabts_wait_nvme && QLA_ABTS_WAIT_ENABLED(orig_sp)))
770 return;
771
772 ha = orig_sp->fcport->vha->hw;
773
774 WARN_ON_ONCE(abt->options & cpu_to_le16(BIT_0));
775
776 abt->options |= cpu_to_le16(AOF_ABTS_RTY_CNT);
777 abt->drv.abts_rty_cnt = cpu_to_le16(2);
778
779 abt->options |= cpu_to_le16(AOF_RSP_TIMEOUT);
780
781 abt->drv.rsp_timeout = cpu_to_le16(2 * (ha->r_a_tov / 10));
782}
783
784void qla_nvme_abort_process_comp_status(struct abort_entry_24xx *abt, srb_t *orig_sp)
785{
786 u16 comp_status;
787 struct scsi_qla_host *vha;
788
789 if (!(ql2xabts_wait_nvme && QLA_ABTS_WAIT_ENABLED(orig_sp)))
790 return;
791
792 vha = orig_sp->fcport->vha;
793
794 comp_status = le16_to_cpu(abt->comp_status);
795 switch (comp_status) {
796 case CS_RESET:
797 case CS_ABORTED:
798
799 case CS_TIMEOUT:
800
801 case CS_PORT_UNAVAILABLE:
802
803 case CS_PORT_LOGGED_OUT:
804
805 case CS_PORT_CONFIG_CHG:
806 ql_dbg(ql_dbg_async + ql_dbg_mbx, vha, 0xf09d,
807 "Abort I/O IOCB completed with error, comp_status=%x\n",
808 comp_status);
809 break;
810
811
812 case CS_REJECT_RECEIVED:
813 ql_dbg(ql_dbg_async + ql_dbg_mbx, vha, 0xf09e,
814 "BA_RJT was received for the ABTS rjt_vendorUnique = %u",
815 abt->fw.ba_rjt_vendorUnique);
816 ql_dbg(ql_dbg_async + ql_dbg_mbx, vha, 0xf09e,
817 "ba_rjt_reasonCodeExpl = %u, ba_rjt_reasonCode = %u\n",
818 abt->fw.ba_rjt_reasonCodeExpl, abt->fw.ba_rjt_reasonCode);
819 break;
820
821 case CS_COMPLETE:
822 ql_dbg(ql_dbg_async + ql_dbg_mbx, vha, 0xf09f,
823 "IOCB request is completed successfully comp_status=%x\n",
824 comp_status);
825 break;
826
827 case CS_IOCB_ERROR:
828 ql_dbg(ql_dbg_async + ql_dbg_mbx, vha, 0xf0a0,
829 "IOCB request is failed, comp_status=%x\n", comp_status);
830 break;
831
832 default:
833 ql_dbg(ql_dbg_async + ql_dbg_mbx, vha, 0xf0a1,
834 "Invalid Abort IO IOCB Completion Status %x\n",
835 comp_status);
836 break;
837 }
838}
839
840inline void qla_wait_nvme_release_cmd_kref(srb_t *orig_sp)
841{
842 if (!(ql2xabts_wait_nvme && QLA_ABTS_WAIT_ENABLED(orig_sp)))
843 return;
844 kref_put(&orig_sp->cmd_kref, orig_sp->put_fn);
845}
846
