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Linux 4.16.11
[linux/fpc-iii.git] / drivers / scsi / qla2xxx / qla_nvme.c
blob6b33a1f24f56169a3a17803e5a6952da2e6445a6
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 nvme_rport *rport;
20 int ret;
21
22 if (!IS_ENABLED(CONFIG_NVME_FC))
23 return 0;
24
25 if (fcport->nvme_flag & NVME_FLAG_REGISTERED)
26 return 0;
27
28 if (!vha->flags.nvme_enabled) {
29 ql_log(ql_log_info, vha, 0x2100,
30 "%s: Not registering target since Host NVME is not enabled\n",
31 __func__);
32 return 0;
33 }
34
35 if (!(fcport->nvme_prli_service_param &
36 (NVME_PRLI_SP_TARGET | NVME_PRLI_SP_DISCOVERY)))
37 return 0;
38
39 INIT_WORK(&fcport->nvme_del_work, qla_nvme_unregister_remote_port);
40 rport = kzalloc(sizeof(*rport), GFP_KERNEL);
41 if (!rport) {
42 ql_log(ql_log_warn, vha, 0x2101,
43 "%s: unable to alloc memory\n", __func__);
44 return -ENOMEM;
45 }
46
47 rport->req.port_name = wwn_to_u64(fcport->port_name);
48 rport->req.node_name = wwn_to_u64(fcport->node_name);
49 rport->req.port_role = 0;
50
51 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_INITIATOR)
52 rport->req.port_role = FC_PORT_ROLE_NVME_INITIATOR;
53
54 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_TARGET)
55 rport->req.port_role |= FC_PORT_ROLE_NVME_TARGET;
56
57 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_DISCOVERY)
58 rport->req.port_role |= FC_PORT_ROLE_NVME_DISCOVERY;
59
60 rport->req.port_id = fcport->d_id.b24;
61
62 ql_log(ql_log_info, vha, 0x2102,
63 "%s: traddr=nn-0x%016llx:pn-0x%016llx PortID:%06x\n",
64 __func__, rport->req.node_name, rport->req.port_name,
65 rport->req.port_id);
66
67 ret = nvme_fc_register_remoteport(vha->nvme_local_port, &rport->req,
68 &fcport->nvme_remote_port);
69 if (ret) {
70 ql_log(ql_log_warn, vha, 0x212e,
71 "Failed to register remote port. Transport returned %d\n",
72 ret);
73 return ret;
74 }
75
76 fcport->nvme_remote_port->private = fcport;
77 fcport->nvme_flag |= NVME_FLAG_REGISTERED;
78 rport->fcport = fcport;
79 list_add_tail(&rport->list, &vha->nvme_rport_list);
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 ql_log(ql_log_warn, vha, 0xffff,
117 "allocating q for idx=%x w/o cpu mask\n", qidx);
118 qpair = qla2xxx_create_qpair(vha, 5, vha->vp_idx, true);
119 if (qpair == NULL) {
120 ql_log(ql_log_warn, vha, 0x2122,
121 "Failed to allocate qpair\n");
122 return -EINVAL;
123 }
124 *handle = qpair;
125
126 return 0;
127 }
128
129 static void qla_nvme_sp_ls_done(void *ptr, int res)
130 {
131 srb_t *sp = ptr;
132 struct srb_iocb *nvme;
133 struct nvmefc_ls_req *fd;
134 struct nvme_private *priv;
135
136 if (atomic_read(&sp->ref_count) == 0) {
137 ql_log(ql_log_warn, sp->fcport->vha, 0x2123,
138 "SP reference-count to ZERO on LS_done -- sp=%p.\n", sp);
139 return;
140 }
141
142 if (!atomic_dec_and_test(&sp->ref_count))
143 return;
144
145 if (res)
146 res = -EINVAL;
147
148 nvme = &sp->u.iocb_cmd;
149 fd = nvme->u.nvme.desc;
150 priv = fd->private;
151 priv->comp_status = res;
152 schedule_work(&priv->ls_work);
153 /* work schedule doesn't need the sp */
154 qla2x00_rel_sp(sp);
155 }
156
157 void qla_nvme_cmpl_io(struct srb_iocb *nvme)
158 {
159 srb_t *sp;
160 struct nvmefc_fcp_req *fd = nvme->u.nvme.desc;
161
162 sp = container_of(nvme, srb_t, u.iocb_cmd);
163 fd->done(fd);
164 qla2xxx_rel_qpair_sp(sp->qpair, sp);
165 }
166
167 static void qla_nvme_sp_done(void *ptr, int res)
168 {
169 srb_t *sp = ptr;
170 struct srb_iocb *nvme;
171 struct nvmefc_fcp_req *fd;
172
173 nvme = &sp->u.iocb_cmd;
174 fd = nvme->u.nvme.desc;
175
176 if (!atomic_dec_and_test(&sp->ref_count))
177 return;
178
179 if (!(sp->fcport->nvme_flag & NVME_FLAG_REGISTERED))
180 goto rel;
181
182 if (unlikely(res == QLA_FUNCTION_FAILED))
183 fd->status = NVME_SC_INTERNAL;
184 else
185 fd->status = 0;
186
187 fd->rcv_rsplen = nvme->u.nvme.rsp_pyld_len;
188 list_add_tail(&nvme->u.nvme.entry, &sp->qpair->nvme_done_list);
189 return;
190 rel:
191 qla2xxx_rel_qpair_sp(sp->qpair, sp);
192 }
193
194 static void qla_nvme_ls_abort(struct nvme_fc_local_port *lport,
195 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd)
196 {
197 struct nvme_private *priv = fd->private;
198 fc_port_t *fcport = rport->private;
199 srb_t *sp = priv->sp;
200 int rval;
201 struct qla_hw_data *ha = fcport->vha->hw;
202
203 rval = ha->isp_ops->abort_command(sp);
204
205 ql_dbg(ql_dbg_io, fcport->vha, 0x212b,
206 "%s: %s LS command for sp=%p on fcport=%p rval=%x\n", __func__,
207 (rval != QLA_SUCCESS) ? "Failed to abort" : "Aborted",
208 sp, fcport, rval);
209 }
210
211 static void qla_nvme_ls_complete(struct work_struct *work)
212 {
213 struct nvme_private *priv =
214 container_of(work, struct nvme_private, ls_work);
215 struct nvmefc_ls_req *fd = priv->fd;
216
217 fd->done(fd, priv->comp_status);
218 }
219
220 static int qla_nvme_ls_req(struct nvme_fc_local_port *lport,
221 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd)
222 {
223 fc_port_t *fcport = rport->private;
224 struct srb_iocb *nvme;
225 struct nvme_private *priv = fd->private;
226 struct scsi_qla_host *vha;
227 int rval = QLA_FUNCTION_FAILED;
228 struct qla_hw_data *ha;
229 srb_t *sp;
230
231 if (!(fcport->nvme_flag & NVME_FLAG_REGISTERED))
232 return rval;
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 srb_t *sp = priv->sp;
279 int rval;
280 fc_port_t *fcport = rport->private;
281 struct qla_hw_data *ha = fcport->vha->hw;
282
283 rval = ha->isp_ops->abort_command(sp);
284
285 ql_dbg(ql_dbg_io, fcport->vha, 0x2127,
286 "%s: %s command for sp=%p on fcport=%p rval=%x\n", __func__,
287 (rval != QLA_SUCCESS) ? "Failed to abort" : "Aborted",
288 sp, fcport, rval);
289 }
290
291 static void qla_nvme_poll(struct nvme_fc_local_port *lport, void *hw_queue_handle)
292 {
293 struct scsi_qla_host *vha = lport->private;
294 unsigned long flags;
295 struct qla_qpair *qpair = hw_queue_handle;
296
297 /* Acquire ring specific lock */
298 spin_lock_irqsave(&qpair->qp_lock, flags);
299 qla24xx_process_response_queue(vha, qpair->rsp);
300 spin_unlock_irqrestore(&qpair->qp_lock, flags);
301 }
302
303 static int qla2x00_start_nvme_mq(srb_t *sp)
304 {
305 unsigned long flags;
306 uint32_t *clr_ptr;
307 uint32_t index;
308 uint32_t handle;
309 struct cmd_nvme *cmd_pkt;
310 uint16_t cnt, i;
311 uint16_t req_cnt;
312 uint16_t tot_dsds;
313 uint16_t avail_dsds;
314 uint32_t *cur_dsd;
315 struct req_que *req = NULL;
316 struct rsp_que *rsp = NULL;
317 struct scsi_qla_host *vha = sp->fcport->vha;
318 struct qla_hw_data *ha = vha->hw;
319 struct qla_qpair *qpair = sp->qpair;
320 struct srb_iocb *nvme = &sp->u.iocb_cmd;
321 struct scatterlist *sgl, *sg;
322 struct nvmefc_fcp_req *fd = nvme->u.nvme.desc;
323 uint32_t rval = QLA_SUCCESS;
324
325 tot_dsds = fd->sg_cnt;
326
327 /* Acquire qpair specific lock */
328 spin_lock_irqsave(&qpair->qp_lock, flags);
329
330 /* Setup qpair pointers */
331 req = qpair->req;
332 rsp = qpair->rsp;
333
334 /* Check for room in outstanding command list. */
335 handle = req->current_outstanding_cmd;
336 for (index = 1; index < req->num_outstanding_cmds; index++) {
337 handle++;
338 if (handle == req->num_outstanding_cmds)
339 handle = 1;
340 if (!req->outstanding_cmds[handle])
341 break;
342 }
343
344 if (index == req->num_outstanding_cmds) {
345 rval = -1;
346 goto queuing_error;
347 }
348 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
349 if (req->cnt < (req_cnt + 2)) {
350 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
351 RD_REG_DWORD_RELAXED(req->req_q_out);
352
353 if (req->ring_index < cnt)
354 req->cnt = cnt - req->ring_index;
355 else
356 req->cnt = req->length - (req->ring_index - cnt);
357
358 if (req->cnt < (req_cnt + 2)){
359 rval = -1;
360 goto queuing_error;
361 }
362 }
363
364 if (unlikely(!fd->sqid)) {
365 struct nvme_fc_cmd_iu *cmd = fd->cmdaddr;
366 if (cmd->sqe.common.opcode == nvme_admin_async_event) {
367 nvme->u.nvme.aen_op = 1;
368 atomic_inc(&vha->hw->nvme_active_aen_cnt);
369 }
370 }
371
372 /* Build command packet. */
373 req->current_outstanding_cmd = handle;
374 req->outstanding_cmds[handle] = sp;
375 sp->handle = handle;
376 req->cnt -= req_cnt;
377
378 cmd_pkt = (struct cmd_nvme *)req->ring_ptr;
379 cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
380
381 /* Zero out remaining portion of packet. */
382 clr_ptr = (uint32_t *)cmd_pkt + 2;
383 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
384
385 cmd_pkt->entry_status = 0;
386
387 /* Update entry type to indicate Command NVME IOCB */
388 cmd_pkt->entry_type = COMMAND_NVME;
389
390 /* No data transfer how do we check buffer len == 0?? */
391 if (fd->io_dir == NVMEFC_FCP_READ) {
392 cmd_pkt->control_flags =
393 cpu_to_le16(CF_READ_DATA | CF_NVME_ENABLE);
394 vha->qla_stats.input_bytes += fd->payload_length;
395 vha->qla_stats.input_requests++;
396 } else if (fd->io_dir == NVMEFC_FCP_WRITE) {
397 cmd_pkt->control_flags =
398 cpu_to_le16(CF_WRITE_DATA | CF_NVME_ENABLE);
399 vha->qla_stats.output_bytes += fd->payload_length;
400 vha->qla_stats.output_requests++;
401 } else if (fd->io_dir == 0) {
402 cmd_pkt->control_flags = cpu_to_le16(CF_NVME_ENABLE);
403 }
404
405 /* Set NPORT-ID */
406 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
407 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
408 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
409 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
410 cmd_pkt->vp_index = sp->fcport->vha->vp_idx;
411
412 /* NVME RSP IU */
413 cmd_pkt->nvme_rsp_dsd_len = cpu_to_le16(fd->rsplen);
414 cmd_pkt->nvme_rsp_dseg_address[0] = cpu_to_le32(LSD(fd->rspdma));
415 cmd_pkt->nvme_rsp_dseg_address[1] = cpu_to_le32(MSD(fd->rspdma));
416
417 /* NVME CNMD IU */
418 cmd_pkt->nvme_cmnd_dseg_len = cpu_to_le16(fd->cmdlen);
419 cmd_pkt->nvme_cmnd_dseg_address[0] = cpu_to_le32(LSD(fd->cmddma));
420 cmd_pkt->nvme_cmnd_dseg_address[1] = cpu_to_le32(MSD(fd->cmddma));
421
422 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
423 cmd_pkt->byte_count = cpu_to_le32(fd->payload_length);
424
425 /* One DSD is available in the Command Type NVME IOCB */
426 avail_dsds = 1;
427 cur_dsd = (uint32_t *)&cmd_pkt->nvme_data_dseg_address[0];
428 sgl = fd->first_sgl;
429
430 /* Load data segments */
431 for_each_sg(sgl, sg, tot_dsds, i) {
432 dma_addr_t sle_dma;
433 cont_a64_entry_t *cont_pkt;
434
435 /* Allocate additional continuation packets? */
436 if (avail_dsds == 0) {
437 /*
438 * Five DSDs are available in the Continuation
439 * Type 1 IOCB.
440 */
441
442 /* Adjust ring index */
443 req->ring_index++;
444 if (req->ring_index == req->length) {
445 req->ring_index = 0;
446 req->ring_ptr = req->ring;
447 } else {
448 req->ring_ptr++;
449 }
450 cont_pkt = (cont_a64_entry_t *)req->ring_ptr;
451 *((uint32_t *)(&cont_pkt->entry_type)) =
452 cpu_to_le32(CONTINUE_A64_TYPE);
453
454 cur_dsd = (uint32_t *)cont_pkt->dseg_0_address;
455 avail_dsds = 5;
456 }
457
458 sle_dma = sg_dma_address(sg);
459 *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
460 *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
461 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
462 avail_dsds--;
463 }
464
465 /* Set total entry count. */
466 cmd_pkt->entry_count = (uint8_t)req_cnt;
467 wmb();
468
469 /* Adjust ring index. */
470 req->ring_index++;
471 if (req->ring_index == req->length) {
472 req->ring_index = 0;
473 req->ring_ptr = req->ring;
474 } else {
475 req->ring_ptr++;
476 }
477
478 /* Set chip new ring index. */
479 WRT_REG_DWORD(req->req_q_in, req->ring_index);
480
481 /* Manage unprocessed RIO/ZIO commands in response queue. */
482 if (vha->flags.process_response_queue &&
483 rsp->ring_ptr->signature != RESPONSE_PROCESSED)
484 qla24xx_process_response_queue(vha, rsp);
485
486 queuing_error:
487 spin_unlock_irqrestore(&qpair->qp_lock, flags);
488 return rval;
489 }
490
491 /* Post a command */
492 static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport,
493 struct nvme_fc_remote_port *rport, void *hw_queue_handle,
494 struct nvmefc_fcp_req *fd)
495 {
496 fc_port_t *fcport;
497 struct srb_iocb *nvme;
498 struct scsi_qla_host *vha;
499 int rval = QLA_FUNCTION_FAILED;
500 srb_t *sp;
501 struct qla_qpair *qpair = hw_queue_handle;
502 struct nvme_private *priv;
503
504 if (!fd) {
505 ql_log(ql_log_warn, NULL, 0x2134, "NO NVMe FCP request\n");
506 return rval;
507 }
508
509 priv = fd->private;
510 fcport = rport->private;
511 if (!fcport) {
512 ql_log(ql_log_warn, NULL, 0x210e, "No fcport ptr\n");
513 return rval;
514 }
515
516 vha = fcport->vha;
517 if ((!qpair) || (!(fcport->nvme_flag & NVME_FLAG_REGISTERED)))
518 return -EBUSY;
519
520 /* Alloc SRB structure */
521 sp = qla2xxx_get_qpair_sp(qpair, fcport, GFP_ATOMIC);
522 if (!sp)
523 return -EIO;
524
525 atomic_set(&sp->ref_count, 1);
526 init_waitqueue_head(&sp->nvme_ls_waitq);
527 priv->sp = sp;
528 sp->type = SRB_NVME_CMD;
529 sp->name = "nvme_cmd";
530 sp->done = qla_nvme_sp_done;
531 sp->qpair = qpair;
532 nvme = &sp->u.iocb_cmd;
533 nvme->u.nvme.desc = fd;
534
535 rval = qla2x00_start_nvme_mq(sp);
536 if (rval != QLA_SUCCESS) {
537 ql_log(ql_log_warn, vha, 0x212d,
538 "qla2x00_start_nvme_mq failed = %d\n", rval);
539 atomic_dec(&sp->ref_count);
540 wake_up(&sp->nvme_ls_waitq);
541 return -EIO;
542 }
543
544 return rval;
545 }
546
547 static void qla_nvme_localport_delete(struct nvme_fc_local_port *lport)
548 {
549 struct scsi_qla_host *vha = lport->private;
550
551 ql_log(ql_log_info, vha, 0x210f,
552 "localport delete of %p completed.\n", vha->nvme_local_port);
553 vha->nvme_local_port = NULL;
554 complete(&vha->nvme_del_done);
555 }
556
557 static void qla_nvme_remoteport_delete(struct nvme_fc_remote_port *rport)
558 {
559 fc_port_t *fcport;
560 struct nvme_rport *r_port, *trport;
561
562 fcport = rport->private;
563 fcport->nvme_remote_port = NULL;
564 fcport->nvme_flag &= ~NVME_FLAG_REGISTERED;
565
566 list_for_each_entry_safe(r_port, trport,
567 &fcport->vha->nvme_rport_list, list) {
568 if (r_port->fcport == fcport) {
569 list_del(&r_port->list);
570 break;
571 }
572 }
573 kfree(r_port);
574 complete(&fcport->nvme_del_done);
575
576 ql_log(ql_log_info, fcport->vha, 0x2110,
577 "remoteport_delete of %p completed.\n", fcport);
578 }
579
580 static struct nvme_fc_port_template qla_nvme_fc_transport = {
581 .localport_delete = qla_nvme_localport_delete,
582 .remoteport_delete = qla_nvme_remoteport_delete,
583 .create_queue = qla_nvme_alloc_queue,
584 .delete_queue = NULL,
585 .ls_req = qla_nvme_ls_req,
586 .ls_abort = qla_nvme_ls_abort,
587 .fcp_io = qla_nvme_post_cmd,
588 .fcp_abort = qla_nvme_fcp_abort,
589 .poll_queue = qla_nvme_poll,
590 .max_hw_queues = 8,
591 .max_sgl_segments = 128,
592 .max_dif_sgl_segments = 64,
593 .dma_boundary = 0xFFFFFFFF,
594 .local_priv_sz = 8,
595 .remote_priv_sz = 0,
596 .lsrqst_priv_sz = sizeof(struct nvme_private),
597 .fcprqst_priv_sz = sizeof(struct nvme_private),
598 };
599
600 #define NVME_ABORT_POLLING_PERIOD 2
601 static int qla_nvme_wait_on_command(srb_t *sp)
602 {
603 int ret = QLA_SUCCESS;
604
605 wait_event_timeout(sp->nvme_ls_waitq, (atomic_read(&sp->ref_count) > 1),
606 NVME_ABORT_POLLING_PERIOD*HZ);
607
608 if (atomic_read(&sp->ref_count) > 1)
609 ret = QLA_FUNCTION_FAILED;
610
611 return ret;
612 }
613
614 static int qla_nvme_wait_on_rport_del(fc_port_t *fcport)
615 {
616 int ret = QLA_SUCCESS;
617 int timeout;
618
619 timeout = wait_for_completion_timeout(&fcport->nvme_del_done,
620 msecs_to_jiffies(2000));
621 if (!timeout) {
622 ret = QLA_FUNCTION_FAILED;
623 ql_log(ql_log_info, fcport->vha, 0x2111,
624 "timed out waiting for fcport=%p to delete\n", fcport);
625 }
626
627 return ret;
628 }
629
630 void qla_nvme_abort(struct qla_hw_data *ha, struct srb *sp)
631 {
632 int rval;
633
634 rval = ha->isp_ops->abort_command(sp);
635 if (!rval && !qla_nvme_wait_on_command(sp))
636 ql_log(ql_log_warn, NULL, 0x2112,
637 "nvme_wait_on_comand timed out waiting on sp=%p\n", sp);
638 }
639
640 static void qla_nvme_unregister_remote_port(struct work_struct *work)
641 {
642 struct fc_port *fcport = container_of(work, struct fc_port,
643 nvme_del_work);
644 struct nvme_rport *rport, *trport;
645
646 if (!IS_ENABLED(CONFIG_NVME_FC))
647 return;
648
649 ql_log(ql_log_warn, NULL, 0x2112,
650 "%s: unregister remoteport on %p\n",__func__, fcport);
651
652 list_for_each_entry_safe(rport, trport,
653 &fcport->vha->nvme_rport_list, list) {
654 if (rport->fcport == fcport) {
655 ql_log(ql_log_info, fcport->vha, 0x2113,
656 "%s: fcport=%p\n", __func__, fcport);
657 init_completion(&fcport->nvme_del_done);
658 nvme_fc_unregister_remoteport(
659 fcport->nvme_remote_port);
660 qla_nvme_wait_on_rport_del(fcport);
661 }
662 }
663 }
664
665 void qla_nvme_delete(struct scsi_qla_host *vha)
666 {
667 struct nvme_rport *rport, *trport;
668 fc_port_t *fcport;
669 int nv_ret;
670
671 if (!IS_ENABLED(CONFIG_NVME_FC))
672 return;
673
674 list_for_each_entry_safe(rport, trport, &vha->nvme_rport_list, list) {
675 fcport = rport->fcport;
676
677 ql_log(ql_log_info, fcport->vha, 0x2114, "%s: fcport=%p\n",
678 __func__, fcport);
679
680 init_completion(&fcport->nvme_del_done);
681 nvme_fc_unregister_remoteport(fcport->nvme_remote_port);
682 qla_nvme_wait_on_rport_del(fcport);
683 }
684
685 if (vha->nvme_local_port) {
686 init_completion(&vha->nvme_del_done);
687 nv_ret = nvme_fc_unregister_localport(vha->nvme_local_port);
688 if (nv_ret == 0)
689 ql_log(ql_log_info, vha, 0x2116,
690 "unregistered localport=%p\n",
691 vha->nvme_local_port);
692 else
693 ql_log(ql_log_info, vha, 0x2115,
694 "Unregister of localport failed\n");
695 wait_for_completion_timeout(&vha->nvme_del_done,
696 msecs_to_jiffies(5000));
697 }
698 }
699
700 void qla_nvme_register_hba(struct scsi_qla_host *vha)
701 {
702 struct nvme_fc_port_template *tmpl;
703 struct qla_hw_data *ha;
704 struct nvme_fc_port_info pinfo;
705 int ret;
706
707 if (!IS_ENABLED(CONFIG_NVME_FC))
708 return;
709
710 ha = vha->hw;
711 tmpl = &qla_nvme_fc_transport;
712
713 WARN_ON(vha->nvme_local_port);
714 WARN_ON(ha->max_req_queues < 3);
715
716 qla_nvme_fc_transport.max_hw_queues =
717 min((uint8_t)(qla_nvme_fc_transport.max_hw_queues),
718 (uint8_t)(ha->max_req_queues - 2));
719
720 pinfo.node_name = wwn_to_u64(vha->node_name);
721 pinfo.port_name = wwn_to_u64(vha->port_name);
722 pinfo.port_role = FC_PORT_ROLE_NVME_INITIATOR;
723 pinfo.port_id = vha->d_id.b24;
724
725 ql_log(ql_log_info, vha, 0xffff,
726 "register_localport: host-traddr=nn-0x%llx:pn-0x%llx on portID:%x\n",
727 pinfo.node_name, pinfo.port_name, pinfo.port_id);
728 qla_nvme_fc_transport.dma_boundary = vha->host->dma_boundary;
729
730 ret = nvme_fc_register_localport(&pinfo, tmpl,
731 get_device(&ha->pdev->dev), &vha->nvme_local_port);
732 if (ret) {
733 ql_log(ql_log_warn, vha, 0xffff,
734 "register_localport failed: ret=%x\n", ret);
735 return;
736 }
737 vha->nvme_local_port->private = vha;
738 }
Linux with added FPC-III support