1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * QLogic Fibre Channel HBA Driver
4 * Copyright (c) 2003-2017 QLogic Corporation
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
12 static struct nvme_fc_port_template qla_nvme_fc_transport;
13
qla_nvme_register_remote(struct scsi_qla_host * vha,struct fc_port * fcport)14 int 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 /* Allocate a queue for NVMe traffic */
qla_nvme_alloc_queue(struct nvme_fc_local_port * lport,unsigned int qidx,u16 qsize,void ** handle)87 static 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 /* Map admin queue and 1st IO queue to index 0 */
95 if (qidx)
96 qidx--;
97
98 vha = (struct scsi_qla_host *)lport->private;
99 ha = vha->hw;
100
101 ql_log(ql_log_info, vha, 0x2104,
102 "%s: handle %p, idx =%d, qsize %d\n",
103 __func__, handle, qidx, qsize);
104
105 if (qidx > qla_nvme_fc_transport.max_hw_queues) {
106 ql_log(ql_log_warn, vha, 0x212f,
107 "%s: Illegal qidx=%d. Max=%d\n",
108 __func__, qidx, qla_nvme_fc_transport.max_hw_queues);
109 return -EINVAL;
110 }
111
112 /* Use base qpair if max_qpairs is 0 */
113 if (!ha->max_qpairs) {
114 qpair = ha->base_qpair;
115 } else {
116 if (ha->queue_pair_map[qidx]) {
117 *handle = ha->queue_pair_map[qidx];
118 ql_log(ql_log_info, vha, 0x2121,
119 "Returning existing qpair of %p for idx=%x\n",
120 *handle, qidx);
121 return 0;
122 }
123
124 qpair = qla2xxx_create_qpair(vha, 5, vha->vp_idx, true);
125 if (!qpair) {
126 ql_log(ql_log_warn, vha, 0x2122,
127 "Failed to allocate qpair\n");
128 return -EINVAL;
129 }
130 }
131 *handle = qpair;
132
133 return 0;
134 }
135
qla_nvme_release_fcp_cmd_kref(struct kref * kref)136 static void qla_nvme_release_fcp_cmd_kref(struct kref *kref)
137 {
138 struct srb *sp = container_of(kref, struct srb, cmd_kref);
139 struct nvme_private *priv = (struct nvme_private *)sp->priv;
140 struct nvmefc_fcp_req *fd;
141 struct srb_iocb *nvme;
142 unsigned long flags;
143
144 if (!priv)
145 goto out;
146
147 nvme = &sp->u.iocb_cmd;
148 fd = nvme->u.nvme.desc;
149
150 spin_lock_irqsave(&priv->cmd_lock, flags);
151 priv->sp = NULL;
152 sp->priv = NULL;
153 if (priv->comp_status == QLA_SUCCESS) {
154 fd->rcv_rsplen = le16_to_cpu(nvme->u.nvme.rsp_pyld_len);
155 fd->status = NVME_SC_SUCCESS;
156 } else {
157 fd->rcv_rsplen = 0;
158 fd->transferred_length = 0;
159 fd->status = NVME_SC_INTERNAL;
160 }
161 spin_unlock_irqrestore(&priv->cmd_lock, flags);
162
163 fd->done(fd);
164 out:
165 qla2xxx_rel_qpair_sp(sp->qpair, sp);
166 }
167
qla_nvme_release_ls_cmd_kref(struct kref * kref)168 static void qla_nvme_release_ls_cmd_kref(struct kref *kref)
169 {
170 struct srb *sp = container_of(kref, struct srb, cmd_kref);
171 struct nvme_private *priv = (struct nvme_private *)sp->priv;
172 struct nvmefc_ls_req *fd;
173 unsigned long flags;
174
175 if (!priv)
176 goto out;
177
178 spin_lock_irqsave(&priv->cmd_lock, flags);
179 priv->sp = NULL;
180 sp->priv = NULL;
181 spin_unlock_irqrestore(&priv->cmd_lock, flags);
182
183 fd = priv->fd;
184 fd->done(fd, priv->comp_status);
185 out:
186 qla2x00_rel_sp(sp);
187 }
188
qla_nvme_ls_complete(struct work_struct * work)189 static void qla_nvme_ls_complete(struct work_struct *work)
190 {
191 struct nvme_private *priv =
192 container_of(work, struct nvme_private, ls_work);
193
194 kref_put(&priv->sp->cmd_kref, qla_nvme_release_ls_cmd_kref);
195 }
196
qla_nvme_sp_ls_done(srb_t * sp,int res)197 static void qla_nvme_sp_ls_done(srb_t *sp, int res)
198 {
199 struct nvme_private *priv = sp->priv;
200
201 if (WARN_ON_ONCE(kref_read(&sp->cmd_kref) == 0))
202 return;
203
204 if (res)
205 res = -EINVAL;
206
207 priv->comp_status = res;
208 INIT_WORK(&priv->ls_work, qla_nvme_ls_complete);
209 schedule_work(&priv->ls_work);
210 }
211
212 /* it assumed that QPair lock is held. */
qla_nvme_sp_done(srb_t * sp,int res)213 static void qla_nvme_sp_done(srb_t *sp, int res)
214 {
215 struct nvme_private *priv = sp->priv;
216
217 priv->comp_status = res;
218 kref_put(&sp->cmd_kref, qla_nvme_release_fcp_cmd_kref);
219
220 return;
221 }
222
qla_nvme_abort_work(struct work_struct * work)223 static void qla_nvme_abort_work(struct work_struct *work)
224 {
225 struct nvme_private *priv =
226 container_of(work, struct nvme_private, abort_work);
227 srb_t *sp = priv->sp;
228 fc_port_t *fcport = sp->fcport;
229 struct qla_hw_data *ha = fcport->vha->hw;
230 int rval;
231
232 ql_dbg(ql_dbg_io, fcport->vha, 0xffff,
233 "%s called for sp=%p, hndl=%x on fcport=%p deleted=%d\n",
234 __func__, sp, sp->handle, fcport, fcport->deleted);
235
236 if (!ha->flags.fw_started && fcport->deleted)
237 goto out;
238
239 if (ha->flags.host_shutting_down) {
240 ql_log(ql_log_info, sp->fcport->vha, 0xffff,
241 "%s Calling done on sp: %p, type: 0x%x\n",
242 __func__, sp, sp->type);
243 sp->done(sp, 0);
244 goto out;
245 }
246
247 rval = ha->isp_ops->abort_command(sp);
248
249 ql_dbg(ql_dbg_io, fcport->vha, 0x212b,
250 "%s: %s command for sp=%p, handle=%x on fcport=%p rval=%x\n",
251 __func__, (rval != QLA_SUCCESS) ? "Failed to abort" : "Aborted",
252 sp, sp->handle, fcport, rval);
253
254 out:
255 /* kref_get was done before work was schedule. */
256 kref_put(&sp->cmd_kref, sp->put_fn);
257 }
258
qla_nvme_ls_abort(struct nvme_fc_local_port * lport,struct nvme_fc_remote_port * rport,struct nvmefc_ls_req * fd)259 static void qla_nvme_ls_abort(struct nvme_fc_local_port *lport,
260 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd)
261 {
262 struct nvme_private *priv = fd->private;
263 unsigned long flags;
264
265 spin_lock_irqsave(&priv->cmd_lock, flags);
266 if (!priv->sp) {
267 spin_unlock_irqrestore(&priv->cmd_lock, flags);
268 return;
269 }
270
271 if (!kref_get_unless_zero(&priv->sp->cmd_kref)) {
272 spin_unlock_irqrestore(&priv->cmd_lock, flags);
273 return;
274 }
275 spin_unlock_irqrestore(&priv->cmd_lock, flags);
276
277 INIT_WORK(&priv->abort_work, qla_nvme_abort_work);
278 schedule_work(&priv->abort_work);
279 }
280
qla_nvme_ls_req(struct nvme_fc_local_port * lport,struct nvme_fc_remote_port * rport,struct nvmefc_ls_req * fd)281 static int qla_nvme_ls_req(struct nvme_fc_local_port *lport,
282 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd)
283 {
284 struct qla_nvme_rport *qla_rport = rport->private;
285 fc_port_t *fcport = qla_rport->fcport;
286 struct srb_iocb *nvme;
287 struct nvme_private *priv = fd->private;
288 struct scsi_qla_host *vha;
289 int rval = QLA_FUNCTION_FAILED;
290 struct qla_hw_data *ha;
291 srb_t *sp;
292
293
294 if (!fcport || (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 /* Alloc SRB structure */
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
qla_nvme_fcp_abort(struct nvme_fc_local_port * lport,struct nvme_fc_remote_port * rport,void * hw_queue_handle,struct nvmefc_fcp_req * fd)344 static 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
qla2x00_start_nvme_mq(srb_t * sp)366 static 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 /* Setup qpair pointers */
388 req = qpair->req;
389 tot_dsds = fd->sg_cnt;
390
391 /* Acquire qpair specific lock */
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 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
402 rd_reg_dword_relaxed(req->req_q_out);
403
404 if (req->ring_index < cnt)
405 req->cnt = cnt - req->ring_index;
406 else
407 req->cnt = req->length - (req->ring_index - cnt);
408
409 if (req->cnt < (req_cnt + 2)){
410 rval = -EBUSY;
411 goto queuing_error;
412 }
413 }
414
415 if (unlikely(!fd->sqid)) {
416 if (cmd->sqe.common.opcode == nvme_admin_async_event) {
417 nvme->u.nvme.aen_op = 1;
418 atomic_inc(&ha->nvme_active_aen_cnt);
419 }
420 }
421
422 /* Build command packet. */
423 req->current_outstanding_cmd = handle;
424 req->outstanding_cmds[handle] = sp;
425 sp->handle = handle;
426 req->cnt -= req_cnt;
427
428 cmd_pkt = (struct cmd_nvme *)req->ring_ptr;
429 cmd_pkt->handle = make_handle(req->id, handle);
430
431 /* Zero out remaining portion of packet. */
432 clr_ptr = (uint32_t *)cmd_pkt + 2;
433 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
434
435 cmd_pkt->entry_status = 0;
436
437 /* Update entry type to indicate Command NVME IOCB */
438 cmd_pkt->entry_type = COMMAND_NVME;
439
440 /* No data transfer how do we check buffer len == 0?? */
441 if (fd->io_dir == NVMEFC_FCP_READ) {
442 cmd_pkt->control_flags = cpu_to_le16(CF_READ_DATA);
443 qpair->counters.input_bytes += fd->payload_length;
444 qpair->counters.input_requests++;
445 } else if (fd->io_dir == NVMEFC_FCP_WRITE) {
446 cmd_pkt->control_flags = cpu_to_le16(CF_WRITE_DATA);
447 if ((vha->flags.nvme_first_burst) &&
448 (sp->fcport->nvme_prli_service_param &
449 NVME_PRLI_SP_FIRST_BURST)) {
450 if ((fd->payload_length <=
451 sp->fcport->nvme_first_burst_size) ||
452 (sp->fcport->nvme_first_burst_size == 0))
453 cmd_pkt->control_flags |=
454 cpu_to_le16(CF_NVME_FIRST_BURST_ENABLE);
455 }
456 qpair->counters.output_bytes += fd->payload_length;
457 qpair->counters.output_requests++;
458 } else if (fd->io_dir == 0) {
459 cmd_pkt->control_flags = 0;
460 }
461 /* Set BIT_13 of control flags for Async event */
462 if (vha->flags.nvme2_enabled &&
463 cmd->sqe.common.opcode == nvme_admin_async_event) {
464 cmd_pkt->control_flags |= cpu_to_le16(CF_ADMIN_ASYNC_EVENT);
465 }
466
467 /* Set NPORT-ID */
468 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
469 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
470 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
471 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
472 cmd_pkt->vp_index = sp->fcport->vha->vp_idx;
473
474 /* NVME RSP IU */
475 cmd_pkt->nvme_rsp_dsd_len = cpu_to_le16(fd->rsplen);
476 put_unaligned_le64(fd->rspdma, &cmd_pkt->nvme_rsp_dseg_address);
477
478 /* NVME CNMD IU */
479 cmd_pkt->nvme_cmnd_dseg_len = cpu_to_le16(fd->cmdlen);
480 cmd_pkt->nvme_cmnd_dseg_address = cpu_to_le64(fd->cmddma);
481
482 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
483 cmd_pkt->byte_count = cpu_to_le32(fd->payload_length);
484
485 /* One DSD is available in the Command Type NVME IOCB */
486 avail_dsds = 1;
487 cur_dsd = &cmd_pkt->nvme_dsd;
488 sgl = fd->first_sgl;
489
490 /* Load data segments */
491 for_each_sg(sgl, sg, tot_dsds, i) {
492 cont_a64_entry_t *cont_pkt;
493
494 /* Allocate additional continuation packets? */
495 if (avail_dsds == 0) {
496 /*
497 * Five DSDs are available in the Continuation
498 * Type 1 IOCB.
499 */
500
501 /* Adjust ring index */
502 req->ring_index++;
503 if (req->ring_index == req->length) {
504 req->ring_index = 0;
505 req->ring_ptr = req->ring;
506 } else {
507 req->ring_ptr++;
508 }
509 cont_pkt = (cont_a64_entry_t *)req->ring_ptr;
510 put_unaligned_le32(CONTINUE_A64_TYPE,
511 &cont_pkt->entry_type);
512
513 cur_dsd = cont_pkt->dsd;
514 avail_dsds = ARRAY_SIZE(cont_pkt->dsd);
515 }
516
517 append_dsd64(&cur_dsd, sg);
518 avail_dsds--;
519 }
520
521 /* Set total entry count. */
522 cmd_pkt->entry_count = (uint8_t)req_cnt;
523 wmb();
524
525 /* Adjust ring index. */
526 req->ring_index++;
527 if (req->ring_index == req->length) {
528 req->ring_index = 0;
529 req->ring_ptr = req->ring;
530 } else {
531 req->ring_ptr++;
532 }
533
534 /* Set chip new ring index. */
535 wrt_reg_dword(req->req_q_in, req->ring_index);
536
537 queuing_error:
538 spin_unlock_irqrestore(&qpair->qp_lock, flags);
539 return rval;
540 }
541
542 /* Post a command */
qla_nvme_post_cmd(struct nvme_fc_local_port * lport,struct nvme_fc_remote_port * rport,void * hw_queue_handle,struct nvmefc_fcp_req * fd)543 static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport,
544 struct nvme_fc_remote_port *rport, void *hw_queue_handle,
545 struct nvmefc_fcp_req *fd)
546 {
547 fc_port_t *fcport;
548 struct srb_iocb *nvme;
549 struct scsi_qla_host *vha;
550 int rval;
551 srb_t *sp;
552 struct qla_qpair *qpair = hw_queue_handle;
553 struct nvme_private *priv = fd->private;
554 struct qla_nvme_rport *qla_rport = rport->private;
555
556 if (!priv) {
557 /* nvme association has been torn down */
558 return -ENODEV;
559 }
560
561 fcport = qla_rport->fcport;
562
563 if (!qpair || !fcport)
564 return -ENODEV;
565
566 if (!qpair->fw_started || fcport->deleted)
567 return -EBUSY;
568
569 vha = fcport->vha;
570
571 if (!(fcport->nvme_flag & NVME_FLAG_REGISTERED))
572 return -ENODEV;
573
574 if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) ||
575 (qpair && !qpair->fw_started) || fcport->deleted)
576 return -EBUSY;
577
578 /*
579 * If we know the dev is going away while the transport is still sending
580 * IO's return busy back to stall the IO Q. This happens when the
581 * link goes away and fw hasn't notified us yet, but IO's are being
582 * returned. If the dev comes back quickly we won't exhaust the IO
583 * retry count at the core.
584 */
585 if (fcport->nvme_flag & NVME_FLAG_RESETTING)
586 return -EBUSY;
587
588 /* Alloc SRB structure */
589 sp = qla2xxx_get_qpair_sp(vha, qpair, fcport, GFP_ATOMIC);
590 if (!sp)
591 return -EBUSY;
592
593 init_waitqueue_head(&sp->nvme_ls_waitq);
594 kref_init(&sp->cmd_kref);
595 spin_lock_init(&priv->cmd_lock);
596 sp->priv = priv;
597 priv->sp = sp;
598 sp->type = SRB_NVME_CMD;
599 sp->name = "nvme_cmd";
600 sp->done = qla_nvme_sp_done;
601 sp->put_fn = qla_nvme_release_fcp_cmd_kref;
602 sp->qpair = qpair;
603 sp->vha = vha;
604 nvme = &sp->u.iocb_cmd;
605 nvme->u.nvme.desc = fd;
606
607 rval = qla2x00_start_nvme_mq(sp);
608 if (rval != QLA_SUCCESS) {
609 ql_log(ql_log_warn, vha, 0x212d,
610 "qla2x00_start_nvme_mq failed = %d\n", rval);
611 wake_up(&sp->nvme_ls_waitq);
612 sp->priv = NULL;
613 priv->sp = NULL;
614 qla2xxx_rel_qpair_sp(sp->qpair, sp);
615 }
616
617 return rval;
618 }
619
qla_nvme_localport_delete(struct nvme_fc_local_port * lport)620 static void qla_nvme_localport_delete(struct nvme_fc_local_port *lport)
621 {
622 struct scsi_qla_host *vha = lport->private;
623
624 ql_log(ql_log_info, vha, 0x210f,
625 "localport delete of %p completed.\n", vha->nvme_local_port);
626 vha->nvme_local_port = NULL;
627 complete(&vha->nvme_del_done);
628 }
629
qla_nvme_remoteport_delete(struct nvme_fc_remote_port * rport)630 static void qla_nvme_remoteport_delete(struct nvme_fc_remote_port *rport)
631 {
632 fc_port_t *fcport;
633 struct qla_nvme_rport *qla_rport = rport->private;
634
635 fcport = qla_rport->fcport;
636 fcport->nvme_remote_port = NULL;
637 fcport->nvme_flag &= ~NVME_FLAG_REGISTERED;
638 fcport->nvme_flag &= ~NVME_FLAG_DELETING;
639 ql_log(ql_log_info, fcport->vha, 0x2110,
640 "remoteport_delete of %p %8phN completed.\n",
641 fcport, fcport->port_name);
642 complete(&fcport->nvme_del_done);
643 }
644
645 static struct nvme_fc_port_template qla_nvme_fc_transport = {
646 .localport_delete = qla_nvme_localport_delete,
647 .remoteport_delete = qla_nvme_remoteport_delete,
648 .create_queue = qla_nvme_alloc_queue,
649 .delete_queue = NULL,
650 .ls_req = qla_nvme_ls_req,
651 .ls_abort = qla_nvme_ls_abort,
652 .fcp_io = qla_nvme_post_cmd,
653 .fcp_abort = qla_nvme_fcp_abort,
654 .max_hw_queues = 8,
655 .max_sgl_segments = 1024,
656 .max_dif_sgl_segments = 64,
657 .dma_boundary = 0xFFFFFFFF,
658 .local_priv_sz = 8,
659 .remote_priv_sz = sizeof(struct qla_nvme_rport),
660 .lsrqst_priv_sz = sizeof(struct nvme_private),
661 .fcprqst_priv_sz = sizeof(struct nvme_private),
662 };
663
qla_nvme_unregister_remote_port(struct fc_port * fcport)664 void qla_nvme_unregister_remote_port(struct fc_port *fcport)
665 {
666 int ret;
667
668 if (!IS_ENABLED(CONFIG_NVME_FC))
669 return;
670
671 ql_log(ql_log_warn, NULL, 0x2112,
672 "%s: unregister remoteport on %p %8phN\n",
673 __func__, fcport, fcport->port_name);
674
675 if (test_bit(PFLG_DRIVER_REMOVING, &fcport->vha->pci_flags))
676 nvme_fc_set_remoteport_devloss(fcport->nvme_remote_port, 0);
677
678 init_completion(&fcport->nvme_del_done);
679 ret = nvme_fc_unregister_remoteport(fcport->nvme_remote_port);
680 if (ret)
681 ql_log(ql_log_info, fcport->vha, 0x2114,
682 "%s: Failed to unregister nvme_remote_port (%d)\n",
683 __func__, ret);
684 wait_for_completion(&fcport->nvme_del_done);
685 }
686
qla_nvme_delete(struct scsi_qla_host * vha)687 void qla_nvme_delete(struct scsi_qla_host *vha)
688 {
689 int nv_ret;
690
691 if (!IS_ENABLED(CONFIG_NVME_FC))
692 return;
693
694 if (vha->nvme_local_port) {
695 init_completion(&vha->nvme_del_done);
696 ql_log(ql_log_info, vha, 0x2116,
697 "unregister localport=%p\n",
698 vha->nvme_local_port);
699 nv_ret = nvme_fc_unregister_localport(vha->nvme_local_port);
700 if (nv_ret)
701 ql_log(ql_log_info, vha, 0x2115,
702 "Unregister of localport failed\n");
703 else
704 wait_for_completion(&vha->nvme_del_done);
705 }
706 }
707
qla_nvme_register_hba(struct scsi_qla_host * vha)708 int qla_nvme_register_hba(struct scsi_qla_host *vha)
709 {
710 struct nvme_fc_port_template *tmpl;
711 struct qla_hw_data *ha;
712 struct nvme_fc_port_info pinfo;
713 int ret = -EINVAL;
714
715 if (!IS_ENABLED(CONFIG_NVME_FC))
716 return ret;
717
718 ha = vha->hw;
719 tmpl = &qla_nvme_fc_transport;
720
721 WARN_ON(vha->nvme_local_port);
722
723 qla_nvme_fc_transport.max_hw_queues =
724 min((uint8_t)(qla_nvme_fc_transport.max_hw_queues),
725 (uint8_t)(ha->max_qpairs ? ha->max_qpairs : 1));
726
727 pinfo.node_name = wwn_to_u64(vha->node_name);
728 pinfo.port_name = wwn_to_u64(vha->port_name);
729 pinfo.port_role = FC_PORT_ROLE_NVME_INITIATOR;
730 pinfo.port_id = vha->d_id.b24;
731
732 ql_log(ql_log_info, vha, 0xffff,
733 "register_localport: host-traddr=nn-0x%llx:pn-0x%llx on portID:%x\n",
734 pinfo.node_name, pinfo.port_name, pinfo.port_id);
735 qla_nvme_fc_transport.dma_boundary = vha->host->dma_boundary;
736
737 ret = nvme_fc_register_localport(&pinfo, tmpl,
738 get_device(&ha->pdev->dev), &vha->nvme_local_port);
739 if (ret) {
740 ql_log(ql_log_warn, vha, 0xffff,
741 "register_localport failed: ret=%x\n", ret);
742 } else {
743 vha->nvme_local_port->private = vha;
744 }
745
746 return ret;
747 }
748