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workqueue: Make worker_attach/detach_pool() update worker->pool
[linux/fpc-iii.git] / drivers / scsi / qla2xxx / qla_nvme.c
blobc5a963c2c86e3297d1f5ee564d8797c1fe9e928c
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 qla_nvme_rport *rport;
20 struct nvme_fc_port_info req;
21 int ret;
22
23 if (!IS_ENABLED(CONFIG_NVME_FC))
24 return 0;
25
26 if (!vha->flags.nvme_enabled) {
27 ql_log(ql_log_info, vha, 0x2100,
28 "%s: Not registering target since Host NVME is not enabled\n",
29 __func__);
30 return 0;
31 }
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 INIT_WORK(&fcport->nvme_del_work, qla_nvme_unregister_remote_port);
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 list_add_tail(&rport->list, &vha->nvme_rport_list);
75
76 fcport->nvme_flag |= NVME_FLAG_REGISTERED;
77 return 0;
78 }
79
80 /* Allocate a queue for NVMe traffic */
81 static int qla_nvme_alloc_queue(struct nvme_fc_local_port *lport,
82 unsigned int qidx, u16 qsize, void **handle)
83 {
84 struct scsi_qla_host *vha;
85 struct qla_hw_data *ha;
86 struct qla_qpair *qpair;
87
88 if (!qidx)
89 qidx++;
90
91 vha = (struct scsi_qla_host *)lport->private;
92 ha = vha->hw;
93
94 ql_log(ql_log_info, vha, 0x2104,
95 "%s: handle %p, idx =%d, qsize %d\n",
96 __func__, handle, qidx, qsize);
97
98 if (qidx > qla_nvme_fc_transport.max_hw_queues) {
99 ql_log(ql_log_warn, vha, 0x212f,
100 "%s: Illegal qidx=%d. Max=%d\n",
101 __func__, qidx, qla_nvme_fc_transport.max_hw_queues);
102 return -EINVAL;
103 }
104
105 if (ha->queue_pair_map[qidx]) {
106 *handle = ha->queue_pair_map[qidx];
107 ql_log(ql_log_info, vha, 0x2121,
108 "Returning existing qpair of %p for idx=%x\n",
109 *handle, qidx);
110 return 0;
111 }
112
113 qpair = qla2xxx_create_qpair(vha, 5, vha->vp_idx, true);
114 if (qpair == NULL) {
115 ql_log(ql_log_warn, vha, 0x2122,
116 "Failed to allocate qpair\n");
117 return -EINVAL;
118 }
119 *handle = qpair;
120
121 return 0;
122 }
123
124 static void qla_nvme_sp_ls_done(void *ptr, int res)
125 {
126 srb_t *sp = ptr;
127 struct srb_iocb *nvme;
128 struct nvmefc_ls_req *fd;
129 struct nvme_private *priv;
130
131 if (atomic_read(&sp->ref_count) == 0) {
132 ql_log(ql_log_warn, sp->fcport->vha, 0x2123,
133 "SP reference-count to ZERO on LS_done -- sp=%p.\n", sp);
134 return;
135 }
136
137 if (!atomic_dec_and_test(&sp->ref_count))
138 return;
139
140 if (res)
141 res = -EINVAL;
142
143 nvme = &sp->u.iocb_cmd;
144 fd = nvme->u.nvme.desc;
145 priv = fd->private;
146 priv->comp_status = res;
147 schedule_work(&priv->ls_work);
148 /* work schedule doesn't need the sp */
149 qla2x00_rel_sp(sp);
150 }
151
152 static void qla_nvme_sp_done(void *ptr, int res)
153 {
154 srb_t *sp = ptr;
155 struct srb_iocb *nvme;
156 struct nvmefc_fcp_req *fd;
157
158 nvme = &sp->u.iocb_cmd;
159 fd = nvme->u.nvme.desc;
160
161 if (!atomic_dec_and_test(&sp->ref_count))
162 return;
163
164 if (res == QLA_SUCCESS)
165 fd->status = 0;
166 else
167 fd->status = NVME_SC_INTERNAL;
168
169 fd->rcv_rsplen = nvme->u.nvme.rsp_pyld_len;
170 fd->done(fd);
171 qla2xxx_rel_qpair_sp(sp->qpair, sp);
172
173 return;
174 }
175
176 static void qla_nvme_abort_work(struct work_struct *work)
177 {
178 struct nvme_private *priv =
179 container_of(work, struct nvme_private, abort_work);
180 srb_t *sp = priv->sp;
181 fc_port_t *fcport = sp->fcport;
182 struct qla_hw_data *ha = fcport->vha->hw;
183 int rval;
184
185 rval = ha->isp_ops->abort_command(sp);
186
187 ql_dbg(ql_dbg_io, fcport->vha, 0x212b,
188 "%s: %s command for sp=%p, handle=%x on fcport=%p rval=%x\n",
189 __func__, (rval != QLA_SUCCESS) ? "Failed to abort" : "Aborted",
190 sp, sp->handle, fcport, rval);
191 }
192
193 static void qla_nvme_ls_abort(struct nvme_fc_local_port *lport,
194 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd)
195 {
196 struct nvme_private *priv = fd->private;
197
198 INIT_WORK(&priv->abort_work, qla_nvme_abort_work);
199 schedule_work(&priv->abort_work);
200 }
201
202 static void qla_nvme_ls_complete(struct work_struct *work)
203 {
204 struct nvme_private *priv =
205 container_of(work, struct nvme_private, ls_work);
206 struct nvmefc_ls_req *fd = priv->fd;
207
208 fd->done(fd, priv->comp_status);
209 }
210
211 static int qla_nvme_ls_req(struct nvme_fc_local_port *lport,
212 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd)
213 {
214 struct qla_nvme_rport *qla_rport = rport->private;
215 fc_port_t *fcport = qla_rport->fcport;
216 struct srb_iocb *nvme;
217 struct nvme_private *priv = fd->private;
218 struct scsi_qla_host *vha;
219 int rval = QLA_FUNCTION_FAILED;
220 struct qla_hw_data *ha;
221 srb_t *sp;
222
223 vha = fcport->vha;
224 ha = vha->hw;
225 /* Alloc SRB structure */
226 sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC);
227 if (!sp)
228 return rval;
229
230 sp->type = SRB_NVME_LS;
231 sp->name = "nvme_ls";
232 sp->done = qla_nvme_sp_ls_done;
233 atomic_set(&sp->ref_count, 1);
234 nvme = &sp->u.iocb_cmd;
235 priv->sp = sp;
236 priv->fd = fd;
237 INIT_WORK(&priv->ls_work, qla_nvme_ls_complete);
238 nvme->u.nvme.desc = fd;
239 nvme->u.nvme.dir = 0;
240 nvme->u.nvme.dl = 0;
241 nvme->u.nvme.cmd_len = fd->rqstlen;
242 nvme->u.nvme.rsp_len = fd->rsplen;
243 nvme->u.nvme.rsp_dma = fd->rspdma;
244 nvme->u.nvme.timeout_sec = fd->timeout;
245 nvme->u.nvme.cmd_dma = dma_map_single(&ha->pdev->dev, fd->rqstaddr,
246 fd->rqstlen, DMA_TO_DEVICE);
247 dma_sync_single_for_device(&ha->pdev->dev, nvme->u.nvme.cmd_dma,
248 fd->rqstlen, DMA_TO_DEVICE);
249
250 rval = qla2x00_start_sp(sp);
251 if (rval != QLA_SUCCESS) {
252 ql_log(ql_log_warn, vha, 0x700e,
253 "qla2x00_start_sp failed = %d\n", rval);
254 atomic_dec(&sp->ref_count);
255 wake_up(&sp->nvme_ls_waitq);
256 return rval;
257 }
258
259 return rval;
260 }
261
262 static void qla_nvme_fcp_abort(struct nvme_fc_local_port *lport,
263 struct nvme_fc_remote_port *rport, void *hw_queue_handle,
264 struct nvmefc_fcp_req *fd)
265 {
266 struct nvme_private *priv = fd->private;
267
268 INIT_WORK(&priv->abort_work, qla_nvme_abort_work);
269 schedule_work(&priv->abort_work);
270 }
271
272 static void qla_nvme_poll(struct nvme_fc_local_port *lport, void *hw_queue_handle)
273 {
274 struct qla_qpair *qpair = hw_queue_handle;
275 unsigned long flags;
276 struct scsi_qla_host *vha = lport->private;
277
278 spin_lock_irqsave(&qpair->qp_lock, flags);
279 qla24xx_process_response_queue(vha, qpair->rsp);
280 spin_unlock_irqrestore(&qpair->qp_lock, flags);
281 }
282
283 static inline int qla2x00_start_nvme_mq(srb_t *sp)
284 {
285 unsigned long flags;
286 uint32_t *clr_ptr;
287 uint32_t index;
288 uint32_t handle;
289 struct cmd_nvme *cmd_pkt;
290 uint16_t cnt, i;
291 uint16_t req_cnt;
292 uint16_t tot_dsds;
293 uint16_t avail_dsds;
294 uint32_t *cur_dsd;
295 struct req_que *req = NULL;
296 struct scsi_qla_host *vha = sp->fcport->vha;
297 struct qla_hw_data *ha = vha->hw;
298 struct qla_qpair *qpair = sp->qpair;
299 struct srb_iocb *nvme = &sp->u.iocb_cmd;
300 struct scatterlist *sgl, *sg;
301 struct nvmefc_fcp_req *fd = nvme->u.nvme.desc;
302 uint32_t rval = QLA_SUCCESS;
303
304 /* Setup qpair pointers */
305 req = qpair->req;
306 tot_dsds = fd->sg_cnt;
307
308 /* Acquire qpair specific lock */
309 spin_lock_irqsave(&qpair->qp_lock, flags);
310
311 /* Check for room in outstanding command list. */
312 handle = req->current_outstanding_cmd;
313 for (index = 1; index < req->num_outstanding_cmds; index++) {
314 handle++;
315 if (handle == req->num_outstanding_cmds)
316 handle = 1;
317 if (!req->outstanding_cmds[handle])
318 break;
319 }
320
321 if (index == req->num_outstanding_cmds) {
322 rval = -EBUSY;
323 goto queuing_error;
324 }
325 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
326 if (req->cnt < (req_cnt + 2)) {
327 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
328 RD_REG_DWORD_RELAXED(req->req_q_out);
329
330 if (req->ring_index < cnt)
331 req->cnt = cnt - req->ring_index;
332 else
333 req->cnt = req->length - (req->ring_index - cnt);
334
335 if (req->cnt < (req_cnt + 2)){
336 rval = -EBUSY;
337 goto queuing_error;
338 }
339 }
340
341 if (unlikely(!fd->sqid)) {
342 struct nvme_fc_cmd_iu *cmd = fd->cmdaddr;
343 if (cmd->sqe.common.opcode == nvme_admin_async_event) {
344 nvme->u.nvme.aen_op = 1;
345 atomic_inc(&ha->nvme_active_aen_cnt);
346 }
347 }
348
349 /* Build command packet. */
350 req->current_outstanding_cmd = handle;
351 req->outstanding_cmds[handle] = sp;
352 sp->handle = handle;
353 req->cnt -= req_cnt;
354
355 cmd_pkt = (struct cmd_nvme *)req->ring_ptr;
356 cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
357
358 /* Zero out remaining portion of packet. */
359 clr_ptr = (uint32_t *)cmd_pkt + 2;
360 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
361
362 cmd_pkt->entry_status = 0;
363
364 /* Update entry type to indicate Command NVME IOCB */
365 cmd_pkt->entry_type = COMMAND_NVME;
366
367 /* No data transfer how do we check buffer len == 0?? */
368 if (fd->io_dir == NVMEFC_FCP_READ) {
369 cmd_pkt->control_flags =
370 cpu_to_le16(CF_READ_DATA | CF_NVME_ENABLE);
371 vha->qla_stats.input_bytes += fd->payload_length;
372 vha->qla_stats.input_requests++;
373 } else if (fd->io_dir == NVMEFC_FCP_WRITE) {
374 cmd_pkt->control_flags =
375 cpu_to_le16(CF_WRITE_DATA | CF_NVME_ENABLE);
376 vha->qla_stats.output_bytes += fd->payload_length;
377 vha->qla_stats.output_requests++;
378 } else if (fd->io_dir == 0) {
379 cmd_pkt->control_flags = cpu_to_le16(CF_NVME_ENABLE);
380 }
381
382 /* Set NPORT-ID */
383 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
384 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
385 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
386 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
387 cmd_pkt->vp_index = sp->fcport->vha->vp_idx;
388
389 /* NVME RSP IU */
390 cmd_pkt->nvme_rsp_dsd_len = cpu_to_le16(fd->rsplen);
391 cmd_pkt->nvme_rsp_dseg_address[0] = cpu_to_le32(LSD(fd->rspdma));
392 cmd_pkt->nvme_rsp_dseg_address[1] = cpu_to_le32(MSD(fd->rspdma));
393
394 /* NVME CNMD IU */
395 cmd_pkt->nvme_cmnd_dseg_len = cpu_to_le16(fd->cmdlen);
396 cmd_pkt->nvme_cmnd_dseg_address[0] = cpu_to_le32(LSD(fd->cmddma));
397 cmd_pkt->nvme_cmnd_dseg_address[1] = cpu_to_le32(MSD(fd->cmddma));
398
399 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
400 cmd_pkt->byte_count = cpu_to_le32(fd->payload_length);
401
402 /* One DSD is available in the Command Type NVME IOCB */
403 avail_dsds = 1;
404 cur_dsd = (uint32_t *)&cmd_pkt->nvme_data_dseg_address[0];
405 sgl = fd->first_sgl;
406
407 /* Load data segments */
408 for_each_sg(sgl, sg, tot_dsds, i) {
409 dma_addr_t sle_dma;
410 cont_a64_entry_t *cont_pkt;
411
412 /* Allocate additional continuation packets? */
413 if (avail_dsds == 0) {
414 /*
415 * Five DSDs are available in the Continuation
416 * Type 1 IOCB.
417 */
418
419 /* Adjust ring index */
420 req->ring_index++;
421 if (req->ring_index == req->length) {
422 req->ring_index = 0;
423 req->ring_ptr = req->ring;
424 } else {
425 req->ring_ptr++;
426 }
427 cont_pkt = (cont_a64_entry_t *)req->ring_ptr;
428 *((uint32_t *)(&cont_pkt->entry_type)) =
429 cpu_to_le32(CONTINUE_A64_TYPE);
430
431 cur_dsd = (uint32_t *)cont_pkt->dseg_0_address;
432 avail_dsds = 5;
433 }
434
435 sle_dma = sg_dma_address(sg);
436 *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
437 *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
438 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
439 avail_dsds--;
440 }
441
442 /* Set total entry count. */
443 cmd_pkt->entry_count = (uint8_t)req_cnt;
444 wmb();
445
446 /* Adjust ring index. */
447 req->ring_index++;
448 if (req->ring_index == req->length) {
449 req->ring_index = 0;
450 req->ring_ptr = req->ring;
451 } else {
452 req->ring_ptr++;
453 }
454
455 /* Set chip new ring index. */
456 WRT_REG_DWORD(req->req_q_in, req->ring_index);
457
458 queuing_error:
459 spin_unlock_irqrestore(&qpair->qp_lock, flags);
460 return rval;
461 }
462
463 /* Post a command */
464 static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport,
465 struct nvme_fc_remote_port *rport, void *hw_queue_handle,
466 struct nvmefc_fcp_req *fd)
467 {
468 fc_port_t *fcport;
469 struct srb_iocb *nvme;
470 struct scsi_qla_host *vha;
471 int rval = -ENODEV;
472 srb_t *sp;
473 struct qla_qpair *qpair = hw_queue_handle;
474 struct nvme_private *priv;
475 struct qla_nvme_rport *qla_rport = rport->private;
476
477 if (!fd || !qpair) {
478 ql_log(ql_log_warn, NULL, 0x2134,
479 "NO NVMe request or Queue Handle\n");
480 return rval;
481 }
482
483 priv = fd->private;
484 fcport = qla_rport->fcport;
485 if (!fcport) {
486 ql_log(ql_log_warn, NULL, 0x210e, "No fcport ptr\n");
487 return rval;
488 }
489
490 vha = fcport->vha;
491
492 if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
493 return rval;
494
495 /*
496 * If we know the dev is going away while the transport is still sending
497 * IO's return busy back to stall the IO Q. This happens when the
498 * link goes away and fw hasn't notified us yet, but IO's are being
499 * returned. If the dev comes back quickly we won't exhaust the IO
500 * retry count at the core.
501 */
502 if (fcport->nvme_flag & NVME_FLAG_RESETTING)
503 return -EBUSY;
504
505 /* Alloc SRB structure */
506 sp = qla2xxx_get_qpair_sp(qpair, fcport, GFP_ATOMIC);
507 if (!sp)
508 return -EBUSY;
509
510 atomic_set(&sp->ref_count, 1);
511 init_waitqueue_head(&sp->nvme_ls_waitq);
512 priv->sp = sp;
513 sp->type = SRB_NVME_CMD;
514 sp->name = "nvme_cmd";
515 sp->done = qla_nvme_sp_done;
516 sp->qpair = qpair;
517 nvme = &sp->u.iocb_cmd;
518 nvme->u.nvme.desc = fd;
519
520 rval = qla2x00_start_nvme_mq(sp);
521 if (rval != QLA_SUCCESS) {
522 ql_log(ql_log_warn, vha, 0x212d,
523 "qla2x00_start_nvme_mq failed = %d\n", rval);
524 atomic_dec(&sp->ref_count);
525 wake_up(&sp->nvme_ls_waitq);
526 }
527
528 return rval;
529 }
530
531 static void qla_nvme_localport_delete(struct nvme_fc_local_port *lport)
532 {
533 struct scsi_qla_host *vha = lport->private;
534
535 ql_log(ql_log_info, vha, 0x210f,
536 "localport delete of %p completed.\n", vha->nvme_local_port);
537 vha->nvme_local_port = NULL;
538 complete(&vha->nvme_del_done);
539 }
540
541 static void qla_nvme_remoteport_delete(struct nvme_fc_remote_port *rport)
542 {
543 fc_port_t *fcport;
544 struct qla_nvme_rport *qla_rport = rport->private, *trport;
545
546 fcport = qla_rport->fcport;
547 fcport->nvme_remote_port = NULL;
548 fcport->nvme_flag &= ~NVME_FLAG_REGISTERED;
549
550 list_for_each_entry_safe(qla_rport, trport,
551 &fcport->vha->nvme_rport_list, list) {
552 if (qla_rport->fcport == fcport) {
553 list_del(&qla_rport->list);
554 break;
555 }
556 }
557 complete(&fcport->nvme_del_done);
558
559 if (!test_bit(UNLOADING, &fcport->vha->dpc_flags)) {
560 INIT_WORK(&fcport->free_work, qlt_free_session_done);
561 schedule_work(&fcport->free_work);
562 }
563
564 fcport->nvme_flag &= ~(NVME_FLAG_REGISTERED | NVME_FLAG_DELETING);
565 ql_log(ql_log_info, fcport->vha, 0x2110,
566 "remoteport_delete of %p completed.\n", fcport);
567 }
568
569 static struct nvme_fc_port_template qla_nvme_fc_transport = {
570 .localport_delete = qla_nvme_localport_delete,
571 .remoteport_delete = qla_nvme_remoteport_delete,
572 .create_queue = qla_nvme_alloc_queue,
573 .delete_queue = NULL,
574 .ls_req = qla_nvme_ls_req,
575 .ls_abort = qla_nvme_ls_abort,
576 .fcp_io = qla_nvme_post_cmd,
577 .fcp_abort = qla_nvme_fcp_abort,
578 .poll_queue = qla_nvme_poll,
579 .max_hw_queues = 8,
580 .max_sgl_segments = 128,
581 .max_dif_sgl_segments = 64,
582 .dma_boundary = 0xFFFFFFFF,
583 .local_priv_sz = 8,
584 .remote_priv_sz = sizeof(struct qla_nvme_rport),
585 .lsrqst_priv_sz = sizeof(struct nvme_private),
586 .fcprqst_priv_sz = sizeof(struct nvme_private),
587 };
588
589 #define NVME_ABORT_POLLING_PERIOD 2
590 static int qla_nvme_wait_on_command(srb_t *sp)
591 {
592 int ret = QLA_SUCCESS;
593
594 wait_event_timeout(sp->nvme_ls_waitq, (atomic_read(&sp->ref_count) > 1),
595 NVME_ABORT_POLLING_PERIOD*HZ);
596
597 if (atomic_read(&sp->ref_count) > 1)
598 ret = QLA_FUNCTION_FAILED;
599
600 return ret;
601 }
602
603 void qla_nvme_abort(struct qla_hw_data *ha, struct srb *sp, int res)
604 {
605 int rval;
606
607 if (!test_bit(ABORT_ISP_ACTIVE, &sp->vha->dpc_flags)) {
608 rval = ha->isp_ops->abort_command(sp);
609 if (!rval && !qla_nvme_wait_on_command(sp))
610 ql_log(ql_log_warn, NULL, 0x2112,
611 "timed out waiting on sp=%p\n", sp);
612 } else {
613 sp->done(sp, res);
614 }
615 }
616
617 static void qla_nvme_unregister_remote_port(struct work_struct *work)
618 {
619 struct fc_port *fcport = container_of(work, struct fc_port,
620 nvme_del_work);
621 struct qla_nvme_rport *qla_rport, *trport;
622
623 if (!IS_ENABLED(CONFIG_NVME_FC))
624 return;
625
626 ql_log(ql_log_warn, NULL, 0x2112,
627 "%s: unregister remoteport on %p\n",__func__, fcport);
628
629 list_for_each_entry_safe(qla_rport, trport,
630 &fcport->vha->nvme_rport_list, list) {
631 if (qla_rport->fcport == fcport) {
632 ql_log(ql_log_info, fcport->vha, 0x2113,
633 "%s: fcport=%p\n", __func__, fcport);
634 init_completion(&fcport->nvme_del_done);
635 nvme_fc_unregister_remoteport(
636 fcport->nvme_remote_port);
637 wait_for_completion(&fcport->nvme_del_done);
638 break;
639 }
640 }
641 }
642
643 void qla_nvme_delete(struct scsi_qla_host *vha)
644 {
645 struct qla_nvme_rport *qla_rport, *trport;
646 fc_port_t *fcport;
647 int nv_ret;
648
649 if (!IS_ENABLED(CONFIG_NVME_FC))
650 return;
651
652 list_for_each_entry_safe(qla_rport, trport,
653 &vha->nvme_rport_list, list) {
654 fcport = qla_rport->fcport;
655
656 ql_log(ql_log_info, fcport->vha, 0x2114, "%s: fcport=%p\n",
657 __func__, fcport);
658
659 nvme_fc_set_remoteport_devloss(fcport->nvme_remote_port, 0);
660 init_completion(&fcport->nvme_del_done);
661 nvme_fc_unregister_remoteport(fcport->nvme_remote_port);
662 wait_for_completion(&fcport->nvme_del_done);
663 }
664
665 if (vha->nvme_local_port) {
666 init_completion(&vha->nvme_del_done);
667 ql_log(ql_log_info, vha, 0x2116,
668 "unregister localport=%p\n",
669 vha->nvme_local_port);
670 nv_ret = nvme_fc_unregister_localport(vha->nvme_local_port);
671 if (nv_ret)
672 ql_log(ql_log_info, vha, 0x2115,
673 "Unregister of localport failed\n");
674 else
675 wait_for_completion(&vha->nvme_del_done);
676 }
677 }
678
679 void qla_nvme_register_hba(struct scsi_qla_host *vha)
680 {
681 struct nvme_fc_port_template *tmpl;
682 struct qla_hw_data *ha;
683 struct nvme_fc_port_info pinfo;
684 int ret;
685
686 if (!IS_ENABLED(CONFIG_NVME_FC))
687 return;
688
689 ha = vha->hw;
690 tmpl = &qla_nvme_fc_transport;
691
692 WARN_ON(vha->nvme_local_port);
693 WARN_ON(ha->max_req_queues < 3);
694
695 qla_nvme_fc_transport.max_hw_queues =
696 min((uint8_t)(qla_nvme_fc_transport.max_hw_queues),
697 (uint8_t)(ha->max_req_queues - 2));
698
699 pinfo.node_name = wwn_to_u64(vha->node_name);
700 pinfo.port_name = wwn_to_u64(vha->port_name);
701 pinfo.port_role = FC_PORT_ROLE_NVME_INITIATOR;
702 pinfo.port_id = vha->d_id.b24;
703
704 ql_log(ql_log_info, vha, 0xffff,
705 "register_localport: host-traddr=nn-0x%llx:pn-0x%llx on portID:%x\n",
706 pinfo.node_name, pinfo.port_name, pinfo.port_id);
707 qla_nvme_fc_transport.dma_boundary = vha->host->dma_boundary;
708
709 ret = nvme_fc_register_localport(&pinfo, tmpl,
710 get_device(&ha->pdev->dev), &vha->nvme_local_port);
711 if (ret) {
712 ql_log(ql_log_warn, vha, 0xffff,
713 "register_localport failed: ret=%x\n", ret);
714 return;
715 }
716 vha->nvme_local_port->private = vha;
717 }
Linux with added FPC-III support