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#include <linux/blk-mq-pci.h>
12#include <linux/blk-mq.h>
13
14static struct nvme_fc_port_template qla_nvme_fc_transport;
15
16int qla_nvme_register_remote(struct scsi_qla_host *vha, struct fc_port *fcport)
17{
18 struct qla_nvme_rport *rport;
19 struct nvme_fc_port_info req;
20 int ret;
21
22 if (!IS_ENABLED(CONFIG_NVME_FC))
23 return 0;
24
25 if (!vha->flags.nvme_enabled) {
26 ql_log(ql_log_info, vha, 0x2100,
27 "%s: Not registering target since Host NVME is not enabled\n",
28 __func__);
29 return 0;
30 }
31
32 if (!vha->nvme_local_port && qla_nvme_register_hba(vha))
33 return 0;
34
35 if (!(fcport->nvme_prli_service_param &
36 (NVME_PRLI_SP_TARGET | NVME_PRLI_SP_DISCOVERY)) ||
37 (fcport->nvme_flag & NVME_FLAG_REGISTERED))
38 return 0;
39
40 if (atomic_read(&fcport->state) == FCS_ONLINE)
41 return 0;
42
43 qla2x00_set_fcport_state(fcport, FCS_ONLINE);
44
45 fcport->nvme_flag &= ~NVME_FLAG_RESETTING;
46
47 memset(&req, 0, sizeof(struct nvme_fc_port_info));
48 req.port_name = wwn_to_u64(fcport->port_name);
49 req.node_name = wwn_to_u64(fcport->node_name);
50 req.port_role = 0;
51 req.dev_loss_tmo = fcport->dev_loss_tmo;
52
53 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_INITIATOR)
54 req.port_role = FC_PORT_ROLE_NVME_INITIATOR;
55
56 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_TARGET)
57 req.port_role |= FC_PORT_ROLE_NVME_TARGET;
58
59 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_DISCOVERY)
60 req.port_role |= FC_PORT_ROLE_NVME_DISCOVERY;
61
62 req.port_id = fcport->d_id.b24;
63
64 ql_log(ql_log_info, vha, 0x2102,
65 "%s: traddr=nn-0x%016llx:pn-0x%016llx PortID:%06x\n",
66 __func__, req.node_name, req.port_name,
67 req.port_id);
68
69 ret = nvme_fc_register_remoteport(vha->nvme_local_port, &req,
70 &fcport->nvme_remote_port);
71 if (ret) {
72 ql_log(ql_log_warn, vha, 0x212e,
73 "Failed to register remote port. Transport returned %d\n",
74 ret);
75 return ret;
76 }
77
78 nvme_fc_set_remoteport_devloss(fcport->nvme_remote_port,
79 fcport->dev_loss_tmo);
80
81 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_SLER)
82 ql_log(ql_log_info, vha, 0x212a,
83 "PortID:%06x Supports SLER\n", req.port_id);
84
85 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_PI_CTRL)
86 ql_log(ql_log_info, vha, 0x212b,
87 "PortID:%06x Supports PI control\n", req.port_id);
88
89 rport = fcport->nvme_remote_port->private;
90 rport->fcport = fcport;
91
92 fcport->nvme_flag |= NVME_FLAG_REGISTERED;
93 return 0;
94}
95
96
97static int qla_nvme_alloc_queue(struct nvme_fc_local_port *lport,
98 unsigned int qidx, u16 qsize, void **handle)
99{
100 struct scsi_qla_host *vha;
101 struct qla_hw_data *ha;
102 struct qla_qpair *qpair;
103
104
105 if (qidx)
106 qidx--;
107
108 vha = (struct scsi_qla_host *)lport->private;
109 ha = vha->hw;
110
111 ql_log(ql_log_info, vha, 0x2104,
112 "%s: handle %p, idx =%d, qsize %d\n",
113 __func__, handle, qidx, qsize);
114
115 if (qidx > qla_nvme_fc_transport.max_hw_queues) {
116 ql_log(ql_log_warn, vha, 0x212f,
117 "%s: Illegal qidx=%d. Max=%d\n",
118 __func__, qidx, qla_nvme_fc_transport.max_hw_queues);
119 return -EINVAL;
120 }
121
122
123 if (!ha->max_qpairs) {
124 qpair = ha->base_qpair;
125 } else {
126 if (ha->queue_pair_map[qidx]) {
127 *handle = ha->queue_pair_map[qidx];
128 ql_log(ql_log_info, vha, 0x2121,
129 "Returning existing qpair of %p for idx=%x\n",
130 *handle, qidx);
131 return 0;
132 }
133
134 qpair = qla2xxx_create_qpair(vha, 5, vha->vp_idx, true);
135 if (!qpair) {
136 ql_log(ql_log_warn, vha, 0x2122,
137 "Failed to allocate qpair\n");
138 return -EINVAL;
139 }
140 }
141 *handle = qpair;
142
143 return 0;
144}
145
146static void qla_nvme_release_fcp_cmd_kref(struct kref *kref)
147{
148 struct srb *sp = container_of(kref, struct srb, cmd_kref);
149 struct nvme_private *priv = (struct nvme_private *)sp->priv;
150 struct nvmefc_fcp_req *fd;
151 struct srb_iocb *nvme;
152 unsigned long flags;
153
154 if (!priv)
155 goto out;
156
157 nvme = &sp->u.iocb_cmd;
158 fd = nvme->u.nvme.desc;
159
160 spin_lock_irqsave(&priv->cmd_lock, flags);
161 priv->sp = NULL;
162 sp->priv = NULL;
163 if (priv->comp_status == QLA_SUCCESS) {
164 fd->rcv_rsplen = le16_to_cpu(nvme->u.nvme.rsp_pyld_len);
165 fd->status = NVME_SC_SUCCESS;
166 } else {
167 fd->rcv_rsplen = 0;
168 fd->transferred_length = 0;
169 fd->status = NVME_SC_INTERNAL;
170 }
171 spin_unlock_irqrestore(&priv->cmd_lock, flags);
172
173 fd->done(fd);
174out:
175 qla2xxx_rel_qpair_sp(sp->qpair, sp);
176}
177
178static void qla_nvme_ls_unmap(struct srb *sp, struct nvmefc_ls_req *fd)
179{
180 if (sp->flags & SRB_DMA_VALID) {
181 struct srb_iocb *nvme = &sp->u.iocb_cmd;
182 struct qla_hw_data *ha = sp->fcport->vha->hw;
183
184 dma_unmap_single(&ha->pdev->dev, nvme->u.nvme.cmd_dma,
185 fd->rqstlen, DMA_TO_DEVICE);
186 sp->flags &= ~SRB_DMA_VALID;
187 }
188}
189
190static void qla_nvme_release_ls_cmd_kref(struct kref *kref)
191{
192 struct srb *sp = container_of(kref, struct srb, cmd_kref);
193 struct nvme_private *priv = (struct nvme_private *)sp->priv;
194 struct nvmefc_ls_req *fd;
195 unsigned long flags;
196
197 if (!priv)
198 goto out;
199
200 spin_lock_irqsave(&priv->cmd_lock, flags);
201 priv->sp = NULL;
202 sp->priv = NULL;
203 spin_unlock_irqrestore(&priv->cmd_lock, flags);
204
205 fd = priv->fd;
206
207 qla_nvme_ls_unmap(sp, fd);
208 fd->done(fd, priv->comp_status);
209out:
210 qla2x00_rel_sp(sp);
211}
212
213static 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
218 kref_put(&priv->sp->cmd_kref, qla_nvme_release_ls_cmd_kref);
219}
220
221static void qla_nvme_sp_ls_done(srb_t *sp, int res)
222{
223 struct nvme_private *priv = sp->priv;
224
225 if (WARN_ON_ONCE(kref_read(&sp->cmd_kref) == 0))
226 return;
227
228 if (res)
229 res = -EINVAL;
230
231 priv->comp_status = res;
232 INIT_WORK(&priv->ls_work, qla_nvme_ls_complete);
233 schedule_work(&priv->ls_work);
234}
235
236
237static void qla_nvme_sp_done(srb_t *sp, int res)
238{
239 struct nvme_private *priv = sp->priv;
240
241 priv->comp_status = res;
242 kref_put(&sp->cmd_kref, qla_nvme_release_fcp_cmd_kref);
243
244 return;
245}
246
247static void qla_nvme_abort_work(struct work_struct *work)
248{
249 struct nvme_private *priv =
250 container_of(work, struct nvme_private, abort_work);
251 srb_t *sp = priv->sp;
252 fc_port_t *fcport = sp->fcport;
253 struct qla_hw_data *ha = fcport->vha->hw;
254 int rval, abts_done_called = 1;
255 bool io_wait_for_abort_done;
256 uint32_t handle;
257
258 ql_dbg(ql_dbg_io, fcport->vha, 0xffff,
259 "%s called for sp=%p, hndl=%x on fcport=%p desc=%p deleted=%d\n",
260 __func__, sp, sp->handle, fcport, sp->u.iocb_cmd.u.nvme.desc, fcport->deleted);
261
262 if (!ha->flags.fw_started || fcport->deleted == QLA_SESS_DELETED)
263 goto out;
264
265 if (ha->flags.host_shutting_down) {
266 ql_log(ql_log_info, sp->fcport->vha, 0xffff,
267 "%s Calling done on sp: %p, type: 0x%x\n",
268 __func__, sp, sp->type);
269 sp->done(sp, 0);
270 goto out;
271 }
272
273
274
275
276
277 io_wait_for_abort_done = ql2xabts_wait_nvme &&
278 QLA_ABTS_WAIT_ENABLED(sp);
279 handle = sp->handle;
280
281 rval = ha->isp_ops->abort_command(sp);
282
283 ql_dbg(ql_dbg_io, fcport->vha, 0x212b,
284 "%s: %s command for sp=%p, handle=%x on fcport=%p rval=%x\n",
285 __func__, (rval != QLA_SUCCESS) ? "Failed to abort" : "Aborted",
286 sp, handle, fcport, rval);
287
288
289
290
291
292 if (ql2xasynctmfenable &&
293 rval != QLA_SUCCESS && rval != QLA_ERR_FROM_FW)
294 abts_done_called = 0;
295
296
297
298
299
300
301 if (abts_done_called && io_wait_for_abort_done)
302 return;
303out:
304
305 kref_put(&sp->cmd_kref, sp->put_fn);
306}
307
308static void qla_nvme_ls_abort(struct nvme_fc_local_port *lport,
309 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd)
310{
311 struct nvme_private *priv = fd->private;
312 unsigned long flags;
313
314 spin_lock_irqsave(&priv->cmd_lock, flags);
315 if (!priv->sp) {
316 spin_unlock_irqrestore(&priv->cmd_lock, flags);
317 return;
318 }
319
320 if (!kref_get_unless_zero(&priv->sp->cmd_kref)) {
321 spin_unlock_irqrestore(&priv->cmd_lock, flags);
322 return;
323 }
324 spin_unlock_irqrestore(&priv->cmd_lock, flags);
325
326 INIT_WORK(&priv->abort_work, qla_nvme_abort_work);
327 schedule_work(&priv->abort_work);
328}
329
330static int qla_nvme_ls_req(struct nvme_fc_local_port *lport,
331 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd)
332{
333 struct qla_nvme_rport *qla_rport = rport->private;
334 fc_port_t *fcport = qla_rport->fcport;
335 struct srb_iocb *nvme;
336 struct nvme_private *priv = fd->private;
337 struct scsi_qla_host *vha;
338 int rval = QLA_FUNCTION_FAILED;
339 struct qla_hw_data *ha;
340 srb_t *sp;
341
342 if (!fcport || fcport->deleted)
343 return rval;
344
345 vha = fcport->vha;
346 ha = vha->hw;
347
348 if (!ha->flags.fw_started)
349 return rval;
350
351
352 sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC);
353 if (!sp)
354 return rval;
355
356 sp->type = SRB_NVME_LS;
357 sp->name = "nvme_ls";
358 sp->done = qla_nvme_sp_ls_done;
359 sp->put_fn = qla_nvme_release_ls_cmd_kref;
360 sp->priv = priv;
361 priv->sp = sp;
362 kref_init(&sp->cmd_kref);
363 spin_lock_init(&priv->cmd_lock);
364 nvme = &sp->u.iocb_cmd;
365 priv->fd = fd;
366 nvme->u.nvme.desc = fd;
367 nvme->u.nvme.dir = 0;
368 nvme->u.nvme.dl = 0;
369 nvme->u.nvme.cmd_len = fd->rqstlen;
370 nvme->u.nvme.rsp_len = fd->rsplen;
371 nvme->u.nvme.rsp_dma = fd->rspdma;
372 nvme->u.nvme.timeout_sec = fd->timeout;
373 nvme->u.nvme.cmd_dma = dma_map_single(&ha->pdev->dev, fd->rqstaddr,
374 fd->rqstlen, DMA_TO_DEVICE);
375 dma_sync_single_for_device(&ha->pdev->dev, nvme->u.nvme.cmd_dma,
376 fd->rqstlen, DMA_TO_DEVICE);
377
378 sp->flags |= SRB_DMA_VALID;
379
380 rval = qla2x00_start_sp(sp);
381 if (rval != QLA_SUCCESS) {
382 ql_log(ql_log_warn, vha, 0x700e,
383 "qla2x00_start_sp failed = %d\n", rval);
384 wake_up(&sp->nvme_ls_waitq);
385 sp->priv = NULL;
386 priv->sp = NULL;
387 qla_nvme_ls_unmap(sp, fd);
388 qla2x00_rel_sp(sp);
389 return rval;
390 }
391
392 return rval;
393}
394
395static void qla_nvme_fcp_abort(struct nvme_fc_local_port *lport,
396 struct nvme_fc_remote_port *rport, void *hw_queue_handle,
397 struct nvmefc_fcp_req *fd)
398{
399 struct nvme_private *priv = fd->private;
400 unsigned long flags;
401
402 spin_lock_irqsave(&priv->cmd_lock, flags);
403 if (!priv->sp) {
404 spin_unlock_irqrestore(&priv->cmd_lock, flags);
405 return;
406 }
407 if (!kref_get_unless_zero(&priv->sp->cmd_kref)) {
408 spin_unlock_irqrestore(&priv->cmd_lock, flags);
409 return;
410 }
411 spin_unlock_irqrestore(&priv->cmd_lock, flags);
412
413 INIT_WORK(&priv->abort_work, qla_nvme_abort_work);
414 schedule_work(&priv->abort_work);
415}
416
417static inline int qla2x00_start_nvme_mq(srb_t *sp)
418{
419 unsigned long flags;
420 uint32_t *clr_ptr;
421 uint32_t handle;
422 struct cmd_nvme *cmd_pkt;
423 uint16_t cnt, i;
424 uint16_t req_cnt;
425 uint16_t tot_dsds;
426 uint16_t avail_dsds;
427 struct dsd64 *cur_dsd;
428 struct req_que *req = NULL;
429 struct rsp_que *rsp = NULL;
430 struct scsi_qla_host *vha = sp->fcport->vha;
431 struct qla_hw_data *ha = vha->hw;
432 struct qla_qpair *qpair = sp->qpair;
433 struct srb_iocb *nvme = &sp->u.iocb_cmd;
434 struct scatterlist *sgl, *sg;
435 struct nvmefc_fcp_req *fd = nvme->u.nvme.desc;
436 struct nvme_fc_cmd_iu *cmd = fd->cmdaddr;
437 uint32_t rval = QLA_SUCCESS;
438
439
440 req = qpair->req;
441 rsp = qpair->rsp;
442 tot_dsds = fd->sg_cnt;
443
444
445 spin_lock_irqsave(&qpair->qp_lock, flags);
446
447 handle = qla2xxx_get_next_handle(req);
448 if (handle == 0) {
449 rval = -EBUSY;
450 goto queuing_error;
451 }
452 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
453 if (req->cnt < (req_cnt + 2)) {
454 if (IS_SHADOW_REG_CAPABLE(ha)) {
455 cnt = *req->out_ptr;
456 } else {
457 cnt = rd_reg_dword_relaxed(req->req_q_out);
458 if (qla2x00_check_reg16_for_disconnect(vha, cnt))
459 goto queuing_error;
460 }
461
462 if (req->ring_index < cnt)
463 req->cnt = cnt - req->ring_index;
464 else
465 req->cnt = req->length - (req->ring_index - cnt);
466
467 if (req->cnt < (req_cnt + 2)){
468 rval = -EBUSY;
469 goto queuing_error;
470 }
471 }
472
473 if (unlikely(!fd->sqid)) {
474 if (cmd->sqe.common.opcode == nvme_admin_async_event) {
475 nvme->u.nvme.aen_op = 1;
476 atomic_inc(&ha->nvme_active_aen_cnt);
477 }
478 }
479
480
481 req->current_outstanding_cmd = handle;
482 req->outstanding_cmds[handle] = sp;
483 sp->handle = handle;
484 req->cnt -= req_cnt;
485
486 cmd_pkt = (struct cmd_nvme *)req->ring_ptr;
487 cmd_pkt->handle = make_handle(req->id, handle);
488
489
490 clr_ptr = (uint32_t *)cmd_pkt + 2;
491 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
492
493 cmd_pkt->entry_status = 0;
494
495
496 cmd_pkt->entry_type = COMMAND_NVME;
497
498
499 if (fd->io_dir == NVMEFC_FCP_READ) {
500 cmd_pkt->control_flags = cpu_to_le16(CF_READ_DATA);
501 qpair->counters.input_bytes += fd->payload_length;
502 qpair->counters.input_requests++;
503 } else if (fd->io_dir == NVMEFC_FCP_WRITE) {
504 cmd_pkt->control_flags = cpu_to_le16(CF_WRITE_DATA);
505 if ((vha->flags.nvme_first_burst) &&
506 (sp->fcport->nvme_prli_service_param &
507 NVME_PRLI_SP_FIRST_BURST)) {
508 if ((fd->payload_length <=
509 sp->fcport->nvme_first_burst_size) ||
510 (sp->fcport->nvme_first_burst_size == 0))
511 cmd_pkt->control_flags |=
512 cpu_to_le16(CF_NVME_FIRST_BURST_ENABLE);
513 }
514 qpair->counters.output_bytes += fd->payload_length;
515 qpair->counters.output_requests++;
516 } else if (fd->io_dir == 0) {
517 cmd_pkt->control_flags = 0;
518 }
519
520 if (sp->fcport->edif.enable && fd->io_dir != 0)
521 cmd_pkt->control_flags |= cpu_to_le16(CF_EN_EDIF);
522
523
524 if (vha->flags.nvme2_enabled &&
525 cmd->sqe.common.opcode == nvme_admin_async_event) {
526 cmd_pkt->control_flags |= cpu_to_le16(CF_ADMIN_ASYNC_EVENT);
527 }
528
529
530 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
531 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
532 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
533 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
534 cmd_pkt->vp_index = sp->fcport->vha->vp_idx;
535
536
537 cmd_pkt->nvme_rsp_dsd_len = cpu_to_le16(fd->rsplen);
538 put_unaligned_le64(fd->rspdma, &cmd_pkt->nvme_rsp_dseg_address);
539
540
541 cmd_pkt->nvme_cmnd_dseg_len = cpu_to_le16(fd->cmdlen);
542 cmd_pkt->nvme_cmnd_dseg_address = cpu_to_le64(fd->cmddma);
543
544 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
545 cmd_pkt->byte_count = cpu_to_le32(fd->payload_length);
546
547
548 avail_dsds = 1;
549 cur_dsd = &cmd_pkt->nvme_dsd;
550 sgl = fd->first_sgl;
551
552
553 for_each_sg(sgl, sg, tot_dsds, i) {
554 cont_a64_entry_t *cont_pkt;
555
556
557 if (avail_dsds == 0) {
558
559
560
561
562
563
564 req->ring_index++;
565 if (req->ring_index == req->length) {
566 req->ring_index = 0;
567 req->ring_ptr = req->ring;
568 } else {
569 req->ring_ptr++;
570 }
571 cont_pkt = (cont_a64_entry_t *)req->ring_ptr;
572 put_unaligned_le32(CONTINUE_A64_TYPE,
573 &cont_pkt->entry_type);
574
575 cur_dsd = cont_pkt->dsd;
576 avail_dsds = ARRAY_SIZE(cont_pkt->dsd);
577 }
578
579 append_dsd64(&cur_dsd, sg);
580 avail_dsds--;
581 }
582
583
584 cmd_pkt->entry_count = (uint8_t)req_cnt;
585 wmb();
586
587
588 req->ring_index++;
589 if (req->ring_index == req->length) {
590 req->ring_index = 0;
591 req->ring_ptr = req->ring;
592 } else {
593 req->ring_ptr++;
594 }
595
596
597 if (!nvme->u.nvme.aen_op)
598 sp->qpair->cmd_cnt++;
599
600
601 wrt_reg_dword(req->req_q_in, req->ring_index);
602
603 if (vha->flags.process_response_queue &&
604 rsp->ring_ptr->signature != RESPONSE_PROCESSED)
605 qla24xx_process_response_queue(vha, rsp);
606
607queuing_error:
608 spin_unlock_irqrestore(&qpair->qp_lock, flags);
609
610 return rval;
611}
612
613
614static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport,
615 struct nvme_fc_remote_port *rport, void *hw_queue_handle,
616 struct nvmefc_fcp_req *fd)
617{
618 fc_port_t *fcport;
619 struct srb_iocb *nvme;
620 struct scsi_qla_host *vha;
621 int rval;
622 srb_t *sp;
623 struct qla_qpair *qpair = hw_queue_handle;
624 struct nvme_private *priv = fd->private;
625 struct qla_nvme_rport *qla_rport = rport->private;
626
627 if (!priv) {
628
629 return -ENODEV;
630 }
631
632 fcport = qla_rport->fcport;
633
634 if (unlikely(!qpair || !fcport || fcport->deleted))
635 return -EBUSY;
636
637 if (!(fcport->nvme_flag & NVME_FLAG_REGISTERED))
638 return -ENODEV;
639
640 vha = fcport->vha;
641
642 if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
643 return -EBUSY;
644
645
646
647
648
649
650
651
652 if (fcport->nvme_flag & NVME_FLAG_RESETTING)
653 return -EBUSY;
654
655
656 sp = qla2xxx_get_qpair_sp(vha, qpair, fcport, GFP_ATOMIC);
657 if (!sp)
658 return -EBUSY;
659
660 init_waitqueue_head(&sp->nvme_ls_waitq);
661 kref_init(&sp->cmd_kref);
662 spin_lock_init(&priv->cmd_lock);
663 sp->priv = priv;
664 priv->sp = sp;
665 sp->type = SRB_NVME_CMD;
666 sp->name = "nvme_cmd";
667 sp->done = qla_nvme_sp_done;
668 sp->put_fn = qla_nvme_release_fcp_cmd_kref;
669 sp->qpair = qpair;
670 sp->vha = vha;
671 sp->cmd_sp = sp;
672 nvme = &sp->u.iocb_cmd;
673 nvme->u.nvme.desc = fd;
674
675 rval = qla2x00_start_nvme_mq(sp);
676 if (rval != QLA_SUCCESS) {
677 ql_log(ql_log_warn, vha, 0x212d,
678 "qla2x00_start_nvme_mq failed = %d\n", rval);
679 wake_up(&sp->nvme_ls_waitq);
680 sp->priv = NULL;
681 priv->sp = NULL;
682 qla2xxx_rel_qpair_sp(sp->qpair, sp);
683 }
684
685 return rval;
686}
687
688static void qla_nvme_map_queues(struct nvme_fc_local_port *lport,
689 struct blk_mq_queue_map *map)
690{
691 struct scsi_qla_host *vha = lport->private;
692 int rc;
693
694 rc = blk_mq_pci_map_queues(map, vha->hw->pdev, vha->irq_offset);
695 if (rc)
696 ql_log(ql_log_warn, vha, 0x21de,
697 "pci map queue failed 0x%x", rc);
698}
699
700static void qla_nvme_localport_delete(struct nvme_fc_local_port *lport)
701{
702 struct scsi_qla_host *vha = lport->private;
703
704 ql_log(ql_log_info, vha, 0x210f,
705 "localport delete of %p completed.\n", vha->nvme_local_port);
706 vha->nvme_local_port = NULL;
707 complete(&vha->nvme_del_done);
708}
709
710static void qla_nvme_remoteport_delete(struct nvme_fc_remote_port *rport)
711{
712 fc_port_t *fcport;
713 struct qla_nvme_rport *qla_rport = rport->private;
714
715 fcport = qla_rport->fcport;
716 fcport->nvme_remote_port = NULL;
717 fcport->nvme_flag &= ~NVME_FLAG_REGISTERED;
718 fcport->nvme_flag &= ~NVME_FLAG_DELETING;
719 ql_log(ql_log_info, fcport->vha, 0x2110,
720 "remoteport_delete of %p %8phN completed.\n",
721 fcport, fcport->port_name);
722 complete(&fcport->nvme_del_done);
723}
724
725static struct nvme_fc_port_template qla_nvme_fc_transport = {
726 .localport_delete = qla_nvme_localport_delete,
727 .remoteport_delete = qla_nvme_remoteport_delete,
728 .create_queue = qla_nvme_alloc_queue,
729 .delete_queue = NULL,
730 .ls_req = qla_nvme_ls_req,
731 .ls_abort = qla_nvme_ls_abort,
732 .fcp_io = qla_nvme_post_cmd,
733 .fcp_abort = qla_nvme_fcp_abort,
734 .map_queues = qla_nvme_map_queues,
735 .max_hw_queues = DEF_NVME_HW_QUEUES,
736 .max_sgl_segments = 1024,
737 .max_dif_sgl_segments = 64,
738 .dma_boundary = 0xFFFFFFFF,
739 .local_priv_sz = 8,
740 .remote_priv_sz = sizeof(struct qla_nvme_rport),
741 .lsrqst_priv_sz = sizeof(struct nvme_private),
742 .fcprqst_priv_sz = sizeof(struct nvme_private),
743};
744
745void qla_nvme_unregister_remote_port(struct fc_port *fcport)
746{
747 int ret;
748
749 if (!IS_ENABLED(CONFIG_NVME_FC))
750 return;
751
752 ql_log(ql_log_warn, fcport->vha, 0x2112,
753 "%s: unregister remoteport on %p %8phN\n",
754 __func__, fcport, fcport->port_name);
755
756 if (test_bit(PFLG_DRIVER_REMOVING, &fcport->vha->pci_flags))
757 nvme_fc_set_remoteport_devloss(fcport->nvme_remote_port, 0);
758
759 init_completion(&fcport->nvme_del_done);
760 ret = nvme_fc_unregister_remoteport(fcport->nvme_remote_port);
761 if (ret)
762 ql_log(ql_log_info, fcport->vha, 0x2114,
763 "%s: Failed to unregister nvme_remote_port (%d)\n",
764 __func__, ret);
765 wait_for_completion(&fcport->nvme_del_done);
766}
767
768void qla_nvme_delete(struct scsi_qla_host *vha)
769{
770 int nv_ret;
771
772 if (!IS_ENABLED(CONFIG_NVME_FC))
773 return;
774
775 if (vha->nvme_local_port) {
776 init_completion(&vha->nvme_del_done);
777 ql_log(ql_log_info, vha, 0x2116,
778 "unregister localport=%p\n",
779 vha->nvme_local_port);
780 nv_ret = nvme_fc_unregister_localport(vha->nvme_local_port);
781 if (nv_ret)
782 ql_log(ql_log_info, vha, 0x2115,
783 "Unregister of localport failed\n");
784 else
785 wait_for_completion(&vha->nvme_del_done);
786 }
787}
788
789int qla_nvme_register_hba(struct scsi_qla_host *vha)
790{
791 struct nvme_fc_port_template *tmpl;
792 struct qla_hw_data *ha;
793 struct nvme_fc_port_info pinfo;
794 int ret = -EINVAL;
795
796 if (!IS_ENABLED(CONFIG_NVME_FC))
797 return ret;
798
799 ha = vha->hw;
800 tmpl = &qla_nvme_fc_transport;
801
802 if (ql2xnvme_queues < MIN_NVME_HW_QUEUES) {
803 ql_log(ql_log_warn, vha, 0xfffd,
804 "ql2xnvme_queues=%d is lower than minimum queues: %d. Resetting ql2xnvme_queues to:%d\n",
805 ql2xnvme_queues, MIN_NVME_HW_QUEUES, DEF_NVME_HW_QUEUES);
806 ql2xnvme_queues = DEF_NVME_HW_QUEUES;
807 } else if (ql2xnvme_queues > (ha->max_qpairs - 1)) {
808 ql_log(ql_log_warn, vha, 0xfffd,
809 "ql2xnvme_queues=%d is greater than available IRQs: %d. Resetting ql2xnvme_queues to: %d\n",
810 ql2xnvme_queues, (ha->max_qpairs - 1),
811 (ha->max_qpairs - 1));
812 ql2xnvme_queues = ((ha->max_qpairs - 1));
813 }
814
815 qla_nvme_fc_transport.max_hw_queues =
816 min((uint8_t)(ql2xnvme_queues),
817 (uint8_t)((ha->max_qpairs - 1) ? (ha->max_qpairs - 1) : 1));
818
819 ql_log(ql_log_info, vha, 0xfffb,
820 "Number of NVME queues used for this port: %d\n",
821 qla_nvme_fc_transport.max_hw_queues);
822
823 pinfo.node_name = wwn_to_u64(vha->node_name);
824 pinfo.port_name = wwn_to_u64(vha->port_name);
825 pinfo.port_role = FC_PORT_ROLE_NVME_INITIATOR;
826 pinfo.port_id = vha->d_id.b24;
827
828 mutex_lock(&ha->vport_lock);
829
830
831
832
833 if (!vha->nvme_local_port) {
834 ql_log(ql_log_info, vha, 0xffff,
835 "register_localport: host-traddr=nn-0x%llx:pn-0x%llx on portID:%x\n",
836 pinfo.node_name, pinfo.port_name, pinfo.port_id);
837 qla_nvme_fc_transport.dma_boundary = vha->host->dma_boundary;
838
839 ret = nvme_fc_register_localport(&pinfo, tmpl,
840 get_device(&ha->pdev->dev),
841 &vha->nvme_local_port);
842 mutex_unlock(&ha->vport_lock);
843 } else {
844 mutex_unlock(&ha->vport_lock);
845 return 0;
846 }
847 if (ret) {
848 ql_log(ql_log_warn, vha, 0xffff,
849 "register_localport failed: ret=%x\n", ret);
850 } else {
851 vha->nvme_local_port->private = vha;
852 }
853
854 return ret;
855}
856
857void qla_nvme_abort_set_option(struct abort_entry_24xx *abt, srb_t *orig_sp)
858{
859 struct qla_hw_data *ha;
860
861 if (!(ql2xabts_wait_nvme && QLA_ABTS_WAIT_ENABLED(orig_sp)))
862 return;
863
864 ha = orig_sp->fcport->vha->hw;
865
866 WARN_ON_ONCE(abt->options & cpu_to_le16(BIT_0));
867
868 abt->options |= cpu_to_le16(AOF_ABTS_RTY_CNT);
869 abt->drv.abts_rty_cnt = cpu_to_le16(2);
870
871 abt->options |= cpu_to_le16(AOF_RSP_TIMEOUT);
872
873 abt->drv.rsp_timeout = cpu_to_le16(2 * (ha->r_a_tov / 10));
874}
875
876void qla_nvme_abort_process_comp_status(struct abort_entry_24xx *abt, srb_t *orig_sp)
877{
878 u16 comp_status;
879 struct scsi_qla_host *vha;
880
881 if (!(ql2xabts_wait_nvme && QLA_ABTS_WAIT_ENABLED(orig_sp)))
882 return;
883
884 vha = orig_sp->fcport->vha;
885
886 comp_status = le16_to_cpu(abt->comp_status);
887 switch (comp_status) {
888 case CS_RESET:
889 case CS_ABORTED:
890
891 case CS_TIMEOUT:
892
893 case CS_PORT_UNAVAILABLE:
894
895 case CS_PORT_LOGGED_OUT:
896
897 case CS_PORT_CONFIG_CHG:
898 ql_dbg(ql_dbg_async, vha, 0xf09d,
899 "Abort I/O IOCB completed with error, comp_status=%x\n",
900 comp_status);
901 break;
902
903
904 case CS_REJECT_RECEIVED:
905 ql_dbg(ql_dbg_async, vha, 0xf09e,
906 "BA_RJT was received for the ABTS rjt_vendorUnique = %u",
907 abt->fw.ba_rjt_vendorUnique);
908 ql_dbg(ql_dbg_async + ql_dbg_mbx, vha, 0xf09e,
909 "ba_rjt_reasonCodeExpl = %u, ba_rjt_reasonCode = %u\n",
910 abt->fw.ba_rjt_reasonCodeExpl, abt->fw.ba_rjt_reasonCode);
911 break;
912
913 case CS_COMPLETE:
914 ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0xf09f,
915 "IOCB request is completed successfully comp_status=%x\n",
916 comp_status);
917 break;
918
919 case CS_IOCB_ERROR:
920 ql_dbg(ql_dbg_async, vha, 0xf0a0,
921 "IOCB request is failed, comp_status=%x\n", comp_status);
922 break;
923
924 default:
925 ql_dbg(ql_dbg_async, vha, 0xf0a1,
926 "Invalid Abort IO IOCB Completion Status %x\n",
927 comp_status);
928 break;
929 }
930}
931
932inline void qla_wait_nvme_release_cmd_kref(srb_t *orig_sp)
933{
934 if (!(ql2xabts_wait_nvme && QLA_ABTS_WAIT_ENABLED(orig_sp)))
935 return;
936 kref_put(&orig_sp->cmd_kref, orig_sp->put_fn);
937}
938
