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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / scsi / qla2xxx / qla_nvme.c
blobbfcd02fdf2b8915df121562303e0b9358b836f89
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 int qla_nvme_register_remote(struct scsi_qla_host *vha, struct fc_port *fcport)
16 {
17 struct qla_nvme_rport *rport;
18 struct nvme_fc_port_info req;
19 int ret;
20
21 if (!IS_ENABLED(CONFIG_NVME_FC))
22 return 0;
23
24 if (!vha->flags.nvme_enabled) {
25 ql_log(ql_log_info, vha, 0x2100,
26 "%s: Not registering target since Host NVME is not enabled\n",
27 __func__);
28 return 0;
29 }
30
31 if (!vha->nvme_local_port && qla_nvme_register_hba(vha))
32 return 0;
33
34 if (!(fcport->nvme_prli_service_param &
35 (NVME_PRLI_SP_TARGET | NVME_PRLI_SP_DISCOVERY)) ||
36 (fcport->nvme_flag & NVME_FLAG_REGISTERED))
37 return 0;
38
39 fcport->nvme_flag &= ~NVME_FLAG_RESETTING;
40
41 memset(&req, 0, sizeof(struct nvme_fc_port_info));
42 req.port_name = wwn_to_u64(fcport->port_name);
43 req.node_name = wwn_to_u64(fcport->node_name);
44 req.port_role = 0;
45 req.dev_loss_tmo = NVME_FC_DEV_LOSS_TMO;
46
47 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_INITIATOR)
48 req.port_role = FC_PORT_ROLE_NVME_INITIATOR;
49
50 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_TARGET)
51 req.port_role |= FC_PORT_ROLE_NVME_TARGET;
52
53 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_DISCOVERY)
54 req.port_role |= FC_PORT_ROLE_NVME_DISCOVERY;
55
56 req.port_id = fcport->d_id.b24;
57
58 ql_log(ql_log_info, vha, 0x2102,
59 "%s: traddr=nn-0x%016llx:pn-0x%016llx PortID:%06x\n",
60 __func__, req.node_name, req.port_name,
61 req.port_id);
62
63 ret = nvme_fc_register_remoteport(vha->nvme_local_port, &req,
64 &fcport->nvme_remote_port);
65 if (ret) {
66 ql_log(ql_log_warn, vha, 0x212e,
67 "Failed to register remote port. Transport returned %d\n",
68 ret);
69 return ret;
70 }
71
72 rport = fcport->nvme_remote_port->private;
73 rport->fcport = fcport;
74
75 fcport->nvme_flag |= NVME_FLAG_REGISTERED;
76 return 0;
77 }
78
79 /* Allocate a queue for NVMe traffic */
80 static int qla_nvme_alloc_queue(struct nvme_fc_local_port *lport,
81 unsigned int qidx, u16 qsize, void **handle)
82 {
83 struct scsi_qla_host *vha;
84 struct qla_hw_data *ha;
85 struct qla_qpair *qpair;
86
87 if (!qidx)
88 qidx++;
89
90 vha = (struct scsi_qla_host *)lport->private;
91 ha = vha->hw;
92
93 ql_log(ql_log_info, vha, 0x2104,
94 "%s: handle %p, idx =%d, qsize %d\n",
95 __func__, handle, qidx, qsize);
96
97 if (qidx > qla_nvme_fc_transport.max_hw_queues) {
98 ql_log(ql_log_warn, vha, 0x212f,
99 "%s: Illegal qidx=%d. Max=%d\n",
100 __func__, qidx, qla_nvme_fc_transport.max_hw_queues);
101 return -EINVAL;
102 }
103
104 if (ha->queue_pair_map[qidx]) {
105 *handle = ha->queue_pair_map[qidx];
106 ql_log(ql_log_info, vha, 0x2121,
107 "Returning existing qpair of %p for idx=%x\n",
108 *handle, qidx);
109 return 0;
110 }
111
112 qpair = qla2xxx_create_qpair(vha, 5, vha->vp_idx, true);
113 if (qpair == NULL) {
114 ql_log(ql_log_warn, vha, 0x2122,
115 "Failed to allocate qpair\n");
116 return -EINVAL;
117 }
118 *handle = qpair;
119
120 return 0;
121 }
122
123 static void qla_nvme_release_fcp_cmd_kref(struct kref *kref)
124 {
125 struct srb *sp = container_of(kref, struct srb, cmd_kref);
126 struct nvme_private *priv = (struct nvme_private *)sp->priv;
127 struct nvmefc_fcp_req *fd;
128 struct srb_iocb *nvme;
129 unsigned long flags;
130
131 if (!priv)
132 goto out;
133
134 nvme = &sp->u.iocb_cmd;
135 fd = nvme->u.nvme.desc;
136
137 spin_lock_irqsave(&priv->cmd_lock, flags);
138 priv->sp = NULL;
139 sp->priv = NULL;
140 if (priv->comp_status == QLA_SUCCESS) {
141 fd->rcv_rsplen = nvme->u.nvme.rsp_pyld_len;
142 } else {
143 fd->rcv_rsplen = 0;
144 fd->transferred_length = 0;
145 }
146 fd->status = 0;
147 spin_unlock_irqrestore(&priv->cmd_lock, flags);
148
149 fd->done(fd);
150 out:
151 qla2xxx_rel_qpair_sp(sp->qpair, sp);
152 }
153
154 static void qla_nvme_release_ls_cmd_kref(struct kref *kref)
155 {
156 struct srb *sp = container_of(kref, struct srb, cmd_kref);
157 struct nvme_private *priv = (struct nvme_private *)sp->priv;
158 struct nvmefc_ls_req *fd;
159 unsigned long flags;
160
161 if (!priv)
162 goto out;
163
164 spin_lock_irqsave(&priv->cmd_lock, flags);
165 priv->sp = NULL;
166 sp->priv = NULL;
167 spin_unlock_irqrestore(&priv->cmd_lock, flags);
168
169 fd = priv->fd;
170 fd->done(fd, priv->comp_status);
171 out:
172 qla2x00_rel_sp(sp);
173 }
174
175 static void qla_nvme_ls_complete(struct work_struct *work)
176 {
177 struct nvme_private *priv =
178 container_of(work, struct nvme_private, ls_work);
179
180 kref_put(&priv->sp->cmd_kref, qla_nvme_release_ls_cmd_kref);
181 }
182
183 static void qla_nvme_sp_ls_done(srb_t *sp, int res)
184 {
185 struct nvme_private *priv = sp->priv;
186
187 if (WARN_ON_ONCE(kref_read(&sp->cmd_kref) == 0))
188 return;
189
190 if (res)
191 res = -EINVAL;
192
193 priv->comp_status = res;
194 INIT_WORK(&priv->ls_work, qla_nvme_ls_complete);
195 schedule_work(&priv->ls_work);
196 }
197
198 /* it assumed that QPair lock is held. */
199 static void qla_nvme_sp_done(srb_t *sp, int res)
200 {
201 struct nvme_private *priv = sp->priv;
202
203 priv->comp_status = res;
204 kref_put(&sp->cmd_kref, qla_nvme_release_fcp_cmd_kref);
205
206 return;
207 }
208
209 static void qla_nvme_abort_work(struct work_struct *work)
210 {
211 struct nvme_private *priv =
212 container_of(work, struct nvme_private, abort_work);
213 srb_t *sp = priv->sp;
214 fc_port_t *fcport = sp->fcport;
215 struct qla_hw_data *ha = fcport->vha->hw;
216 int rval;
217
218 ql_dbg(ql_dbg_io, fcport->vha, 0xffff,
219 "%s called for sp=%p, hndl=%x on fcport=%p deleted=%d\n",
220 __func__, sp, sp->handle, fcport, fcport->deleted);
221
222 if (!ha->flags.fw_started && fcport->deleted)
223 goto out;
224
225 if (ha->flags.host_shutting_down) {
226 ql_log(ql_log_info, sp->fcport->vha, 0xffff,
227 "%s Calling done on sp: %p, type: 0x%x\n",
228 __func__, sp, sp->type);
229 sp->done(sp, 0);
230 goto out;
231 }
232
233 rval = ha->isp_ops->abort_command(sp);
234
235 ql_dbg(ql_dbg_io, fcport->vha, 0x212b,
236 "%s: %s command for sp=%p, handle=%x on fcport=%p rval=%x\n",
237 __func__, (rval != QLA_SUCCESS) ? "Failed to abort" : "Aborted",
238 sp, sp->handle, fcport, rval);
239
240 out:
241 /* kref_get was done before work was schedule. */
242 kref_put(&sp->cmd_kref, sp->put_fn);
243 }
244
245 static void qla_nvme_ls_abort(struct nvme_fc_local_port *lport,
246 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd)
247 {
248 struct nvme_private *priv = fd->private;
249 unsigned long flags;
250
251 spin_lock_irqsave(&priv->cmd_lock, flags);
252 if (!priv->sp) {
253 spin_unlock_irqrestore(&priv->cmd_lock, flags);
254 return;
255 }
256
257 if (!kref_get_unless_zero(&priv->sp->cmd_kref)) {
258 spin_unlock_irqrestore(&priv->cmd_lock, flags);
259 return;
260 }
261 spin_unlock_irqrestore(&priv->cmd_lock, flags);
262
263 INIT_WORK(&priv->abort_work, qla_nvme_abort_work);
264 schedule_work(&priv->abort_work);
265 }
266
267 static int qla_nvme_ls_req(struct nvme_fc_local_port *lport,
268 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd)
269 {
270 struct qla_nvme_rport *qla_rport = rport->private;
271 fc_port_t *fcport = qla_rport->fcport;
272 struct srb_iocb *nvme;
273 struct nvme_private *priv = fd->private;
274 struct scsi_qla_host *vha;
275 int rval = QLA_FUNCTION_FAILED;
276 struct qla_hw_data *ha;
277 srb_t *sp;
278
279
280 if (!fcport || (fcport && fcport->deleted))
281 return rval;
282
283 vha = fcport->vha;
284 ha = vha->hw;
285
286 if (!ha->flags.fw_started)
287 return rval;
288
289 /* Alloc SRB structure */
290 sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC);
291 if (!sp)
292 return rval;
293
294 sp->type = SRB_NVME_LS;
295 sp->name = "nvme_ls";
296 sp->done = qla_nvme_sp_ls_done;
297 sp->put_fn = qla_nvme_release_ls_cmd_kref;
298 sp->priv = (void *)priv;
299 priv->sp = sp;
300 kref_init(&sp->cmd_kref);
301 spin_lock_init(&priv->cmd_lock);
302 nvme = &sp->u.iocb_cmd;
303 priv->fd = fd;
304 nvme->u.nvme.desc = fd;
305 nvme->u.nvme.dir = 0;
306 nvme->u.nvme.dl = 0;
307 nvme->u.nvme.cmd_len = fd->rqstlen;
308 nvme->u.nvme.rsp_len = fd->rsplen;
309 nvme->u.nvme.rsp_dma = fd->rspdma;
310 nvme->u.nvme.timeout_sec = fd->timeout;
311 nvme->u.nvme.cmd_dma = dma_map_single(&ha->pdev->dev, fd->rqstaddr,
312 fd->rqstlen, DMA_TO_DEVICE);
313 dma_sync_single_for_device(&ha->pdev->dev, nvme->u.nvme.cmd_dma,
314 fd->rqstlen, DMA_TO_DEVICE);
315
316 rval = qla2x00_start_sp(sp);
317 if (rval != QLA_SUCCESS) {
318 ql_log(ql_log_warn, vha, 0x700e,
319 "qla2x00_start_sp failed = %d\n", rval);
320 wake_up(&sp->nvme_ls_waitq);
321 sp->priv = NULL;
322 priv->sp = NULL;
323 qla2x00_rel_sp(sp);
324 return rval;
325 }
326
327 return rval;
328 }
329
330 static void qla_nvme_fcp_abort(struct nvme_fc_local_port *lport,
331 struct nvme_fc_remote_port *rport, void *hw_queue_handle,
332 struct nvmefc_fcp_req *fd)
333 {
334 struct nvme_private *priv = fd->private;
335 unsigned long flags;
336
337 spin_lock_irqsave(&priv->cmd_lock, flags);
338 if (!priv->sp) {
339 spin_unlock_irqrestore(&priv->cmd_lock, flags);
340 return;
341 }
342 if (!kref_get_unless_zero(&priv->sp->cmd_kref)) {
343 spin_unlock_irqrestore(&priv->cmd_lock, flags);
344 return;
345 }
346 spin_unlock_irqrestore(&priv->cmd_lock, flags);
347
348 INIT_WORK(&priv->abort_work, qla_nvme_abort_work);
349 schedule_work(&priv->abort_work);
350 }
351
352 static inline int qla2x00_start_nvme_mq(srb_t *sp)
353 {
354 unsigned long flags;
355 uint32_t *clr_ptr;
356 uint32_t handle;
357 struct cmd_nvme *cmd_pkt;
358 uint16_t cnt, i;
359 uint16_t req_cnt;
360 uint16_t tot_dsds;
361 uint16_t avail_dsds;
362 struct dsd64 *cur_dsd;
363 struct req_que *req = NULL;
364 struct scsi_qla_host *vha = sp->fcport->vha;
365 struct qla_hw_data *ha = vha->hw;
366 struct qla_qpair *qpair = sp->qpair;
367 struct srb_iocb *nvme = &sp->u.iocb_cmd;
368 struct scatterlist *sgl, *sg;
369 struct nvmefc_fcp_req *fd = nvme->u.nvme.desc;
370 uint32_t rval = QLA_SUCCESS;
371
372 /* Setup qpair pointers */
373 req = qpair->req;
374 tot_dsds = fd->sg_cnt;
375
376 /* Acquire qpair specific lock */
377 spin_lock_irqsave(&qpair->qp_lock, flags);
378
379 handle = qla2xxx_get_next_handle(req);
380 if (handle == 0) {
381 rval = -EBUSY;
382 goto queuing_error;
383 }
384 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
385 if (req->cnt < (req_cnt + 2)) {
386 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
387 RD_REG_DWORD_RELAXED(req->req_q_out);
388
389 if (req->ring_index < cnt)
390 req->cnt = cnt - req->ring_index;
391 else
392 req->cnt = req->length - (req->ring_index - cnt);
393
394 if (req->cnt < (req_cnt + 2)){
395 rval = -EBUSY;
396 goto queuing_error;
397 }
398 }
399
400 if (unlikely(!fd->sqid)) {
401 struct nvme_fc_cmd_iu *cmd = fd->cmdaddr;
402
403 if (cmd->sqe.common.opcode == nvme_admin_async_event) {
404 nvme->u.nvme.aen_op = 1;
405 atomic_inc(&ha->nvme_active_aen_cnt);
406 }
407 }
408
409 /* Build command packet. */
410 req->current_outstanding_cmd = handle;
411 req->outstanding_cmds[handle] = sp;
412 sp->handle = handle;
413 req->cnt -= req_cnt;
414
415 cmd_pkt = (struct cmd_nvme *)req->ring_ptr;
416 cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
417
418 /* Zero out remaining portion of packet. */
419 clr_ptr = (uint32_t *)cmd_pkt + 2;
420 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
421
422 cmd_pkt->entry_status = 0;
423
424 /* Update entry type to indicate Command NVME IOCB */
425 cmd_pkt->entry_type = COMMAND_NVME;
426
427 /* No data transfer how do we check buffer len == 0?? */
428 if (fd->io_dir == NVMEFC_FCP_READ) {
429 cmd_pkt->control_flags = CF_READ_DATA;
430 vha->qla_stats.input_bytes += fd->payload_length;
431 vha->qla_stats.input_requests++;
432 } else if (fd->io_dir == NVMEFC_FCP_WRITE) {
433 cmd_pkt->control_flags = CF_WRITE_DATA;
434 if ((vha->flags.nvme_first_burst) &&
435 (sp->fcport->nvme_prli_service_param &
436 NVME_PRLI_SP_FIRST_BURST)) {
437 if ((fd->payload_length <=
438 sp->fcport->nvme_first_burst_size) ||
439 (sp->fcport->nvme_first_burst_size == 0))
440 cmd_pkt->control_flags |=
441 CF_NVME_FIRST_BURST_ENABLE;
442 }
443 vha->qla_stats.output_bytes += fd->payload_length;
444 vha->qla_stats.output_requests++;
445 } else if (fd->io_dir == 0) {
446 cmd_pkt->control_flags = 0;
447 }
448
449 /* Set NPORT-ID */
450 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
451 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
452 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
453 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
454 cmd_pkt->vp_index = sp->fcport->vha->vp_idx;
455
456 /* NVME RSP IU */
457 cmd_pkt->nvme_rsp_dsd_len = cpu_to_le16(fd->rsplen);
458 put_unaligned_le64(fd->rspdma, &cmd_pkt->nvme_rsp_dseg_address);
459
460 /* NVME CNMD IU */
461 cmd_pkt->nvme_cmnd_dseg_len = cpu_to_le16(fd->cmdlen);
462 cmd_pkt->nvme_cmnd_dseg_address = cpu_to_le64(fd->cmddma);
463
464 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
465 cmd_pkt->byte_count = cpu_to_le32(fd->payload_length);
466
467 /* One DSD is available in the Command Type NVME IOCB */
468 avail_dsds = 1;
469 cur_dsd = &cmd_pkt->nvme_dsd;
470 sgl = fd->first_sgl;
471
472 /* Load data segments */
473 for_each_sg(sgl, sg, tot_dsds, i) {
474 cont_a64_entry_t *cont_pkt;
475
476 /* Allocate additional continuation packets? */
477 if (avail_dsds == 0) {
478 /*
479 * Five DSDs are available in the Continuation
480 * Type 1 IOCB.
481 */
482
483 /* Adjust ring index */
484 req->ring_index++;
485 if (req->ring_index == req->length) {
486 req->ring_index = 0;
487 req->ring_ptr = req->ring;
488 } else {
489 req->ring_ptr++;
490 }
491 cont_pkt = (cont_a64_entry_t *)req->ring_ptr;
492 put_unaligned_le32(CONTINUE_A64_TYPE,
493 &cont_pkt->entry_type);
494
495 cur_dsd = cont_pkt->dsd;
496 avail_dsds = ARRAY_SIZE(cont_pkt->dsd);
497 }
498
499 append_dsd64(&cur_dsd, sg);
500 avail_dsds--;
501 }
502
503 /* Set total entry count. */
504 cmd_pkt->entry_count = (uint8_t)req_cnt;
505 wmb();
506
507 /* Adjust ring index. */
508 req->ring_index++;
509 if (req->ring_index == req->length) {
510 req->ring_index = 0;
511 req->ring_ptr = req->ring;
512 } else {
513 req->ring_ptr++;
514 }
515
516 /* Set chip new ring index. */
517 WRT_REG_DWORD(req->req_q_in, req->ring_index);
518
519 queuing_error:
520 spin_unlock_irqrestore(&qpair->qp_lock, flags);
521 return rval;
522 }
523
524 /* Post a command */
525 static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport,
526 struct nvme_fc_remote_port *rport, void *hw_queue_handle,
527 struct nvmefc_fcp_req *fd)
528 {
529 fc_port_t *fcport;
530 struct srb_iocb *nvme;
531 struct scsi_qla_host *vha;
532 int rval = -ENODEV;
533 srb_t *sp;
534 struct qla_qpair *qpair = hw_queue_handle;
535 struct nvme_private *priv = fd->private;
536 struct qla_nvme_rport *qla_rport = rport->private;
537
538 fcport = qla_rport->fcport;
539
540 if (!qpair || !fcport || (qpair && !qpair->fw_started) ||
541 (fcport && fcport->deleted))
542 return rval;
543
544 vha = fcport->vha;
545 /*
546 * If we know the dev is going away while the transport is still sending
547 * IO's return busy back to stall the IO Q. This happens when the
548 * link goes away and fw hasn't notified us yet, but IO's are being
549 * returned. If the dev comes back quickly we won't exhaust the IO
550 * retry count at the core.
551 */
552 if (fcport->nvme_flag & NVME_FLAG_RESETTING)
553 return -EBUSY;
554
555 /* Alloc SRB structure */
556 sp = qla2xxx_get_qpair_sp(vha, qpair, fcport, GFP_ATOMIC);
557 if (!sp)
558 return -EBUSY;
559
560 init_waitqueue_head(&sp->nvme_ls_waitq);
561 kref_init(&sp->cmd_kref);
562 spin_lock_init(&priv->cmd_lock);
563 sp->priv = (void *)priv;
564 priv->sp = sp;
565 sp->type = SRB_NVME_CMD;
566 sp->name = "nvme_cmd";
567 sp->done = qla_nvme_sp_done;
568 sp->put_fn = qla_nvme_release_fcp_cmd_kref;
569 sp->qpair = qpair;
570 sp->vha = vha;
571 nvme = &sp->u.iocb_cmd;
572 nvme->u.nvme.desc = fd;
573
574 rval = qla2x00_start_nvme_mq(sp);
575 if (rval != QLA_SUCCESS) {
576 ql_log(ql_log_warn, vha, 0x212d,
577 "qla2x00_start_nvme_mq failed = %d\n", rval);
578 wake_up(&sp->nvme_ls_waitq);
579 sp->priv = NULL;
580 priv->sp = NULL;
581 qla2xxx_rel_qpair_sp(sp->qpair, sp);
582 }
583
584 return rval;
585 }
586
587 static void qla_nvme_localport_delete(struct nvme_fc_local_port *lport)
588 {
589 struct scsi_qla_host *vha = lport->private;
590
591 ql_log(ql_log_info, vha, 0x210f,
592 "localport delete of %p completed.\n", vha->nvme_local_port);
593 vha->nvme_local_port = NULL;
594 complete(&vha->nvme_del_done);
595 }
596
597 static void qla_nvme_remoteport_delete(struct nvme_fc_remote_port *rport)
598 {
599 fc_port_t *fcport;
600 struct qla_nvme_rport *qla_rport = rport->private;
601
602 fcport = qla_rport->fcport;
603 fcport->nvme_remote_port = NULL;
604 fcport->nvme_flag &= ~NVME_FLAG_REGISTERED;
605 fcport->nvme_flag &= ~NVME_FLAG_DELETING;
606 ql_log(ql_log_info, fcport->vha, 0x2110,
607 "remoteport_delete of %p %8phN completed.\n",
608 fcport, fcport->port_name);
609 complete(&fcport->nvme_del_done);
610 }
611
612 static struct nvme_fc_port_template qla_nvme_fc_transport = {
613 .module = THIS_MODULE,
614 .localport_delete = qla_nvme_localport_delete,
615 .remoteport_delete = qla_nvme_remoteport_delete,
616 .create_queue = qla_nvme_alloc_queue,
617 .delete_queue = NULL,
618 .ls_req = qla_nvme_ls_req,
619 .ls_abort = qla_nvme_ls_abort,
620 .fcp_io = qla_nvme_post_cmd,
621 .fcp_abort = qla_nvme_fcp_abort,
622 .max_hw_queues = 8,
623 .max_sgl_segments = 1024,
624 .max_dif_sgl_segments = 64,
625 .dma_boundary = 0xFFFFFFFF,
626 .local_priv_sz = 8,
627 .remote_priv_sz = sizeof(struct qla_nvme_rport),
628 .lsrqst_priv_sz = sizeof(struct nvme_private),
629 .fcprqst_priv_sz = sizeof(struct nvme_private),
630 };
631
632 void qla_nvme_unregister_remote_port(struct fc_port *fcport)
633 {
634 int ret;
635
636 if (!IS_ENABLED(CONFIG_NVME_FC))
637 return;
638
639 ql_log(ql_log_warn, NULL, 0x2112,
640 "%s: unregister remoteport on %p %8phN\n",
641 __func__, fcport, fcport->port_name);
642
643 if (test_bit(PFLG_DRIVER_REMOVING, &fcport->vha->pci_flags))
644 nvme_fc_set_remoteport_devloss(fcport->nvme_remote_port, 0);
645
646 init_completion(&fcport->nvme_del_done);
647 ret = nvme_fc_unregister_remoteport(fcport->nvme_remote_port);
648 if (ret)
649 ql_log(ql_log_info, fcport->vha, 0x2114,
650 "%s: Failed to unregister nvme_remote_port (%d)\n",
651 __func__, ret);
652 wait_for_completion(&fcport->nvme_del_done);
653 }
654
655 void qla_nvme_delete(struct scsi_qla_host *vha)
656 {
657 int nv_ret;
658
659 if (!IS_ENABLED(CONFIG_NVME_FC))
660 return;
661
662 if (vha->nvme_local_port) {
663 init_completion(&vha->nvme_del_done);
664 ql_log(ql_log_info, vha, 0x2116,
665 "unregister localport=%p\n",
666 vha->nvme_local_port);
667 nv_ret = nvme_fc_unregister_localport(vha->nvme_local_port);
668 if (nv_ret)
669 ql_log(ql_log_info, vha, 0x2115,
670 "Unregister of localport failed\n");
671 else
672 wait_for_completion(&vha->nvme_del_done);
673 }
674 }
675
676 int qla_nvme_register_hba(struct scsi_qla_host *vha)
677 {
678 struct nvme_fc_port_template *tmpl;
679 struct qla_hw_data *ha;
680 struct nvme_fc_port_info pinfo;
681 int ret = EINVAL;
682
683 if (!IS_ENABLED(CONFIG_NVME_FC))
684 return ret;
685
686 ha = vha->hw;
687 tmpl = &qla_nvme_fc_transport;
688
689 WARN_ON(vha->nvme_local_port);
690 WARN_ON(ha->max_req_queues < 3);
691
692 qla_nvme_fc_transport.max_hw_queues =
693 min((uint8_t)(qla_nvme_fc_transport.max_hw_queues),
694 (uint8_t)(ha->max_req_queues - 2));
695
696 pinfo.node_name = wwn_to_u64(vha->node_name);
697 pinfo.port_name = wwn_to_u64(vha->port_name);
698 pinfo.port_role = FC_PORT_ROLE_NVME_INITIATOR;
699 pinfo.port_id = vha->d_id.b24;
700
701 ql_log(ql_log_info, vha, 0xffff,
702 "register_localport: host-traddr=nn-0x%llx:pn-0x%llx on portID:%x\n",
703 pinfo.node_name, pinfo.port_name, pinfo.port_id);
704 qla_nvme_fc_transport.dma_boundary = vha->host->dma_boundary;
705
706 ret = nvme_fc_register_localport(&pinfo, tmpl,
707 get_device(&ha->pdev->dev), &vha->nvme_local_port);
708 if (ret) {
709 ql_log(ql_log_warn, vha, 0xffff,
710 "register_localport failed: ret=%x\n", ret);
711 } else {
712 vha->nvme_local_port->private = vha;
713 }
714
715 return ret;
716 }
Linux with added FPC-III support