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Merge tag 'rtc-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
[mirror_ubuntu-artful-kernel.git] / drivers / scsi / qla2xxx / qla_nvme.c
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 "qla_def.h"
9 #include <linux/scatterlist.h>
10 #include <linux/delay.h>
11 #include <linux/nvme.h>
12 #include <linux/nvme-fc.h>
13
14 static struct nvme_fc_port_template qla_nvme_fc_transport;
15
16 static void qla_nvme_unregister_remote_port(struct work_struct *);
17
18 int qla_nvme_register_remote(scsi_qla_host_t *vha, fc_port_t *fcport)
19 {
20 struct nvme_rport *rport;
21 int ret;
22
23 if (!IS_ENABLED(CONFIG_NVME_FC))
24 return 0;
25
26 if (fcport->nvme_flag & NVME_FLAG_REGISTERED)
27 return 0;
28
29 if (!vha->flags.nvme_enabled) {
30 ql_log(ql_log_info, vha, 0x2100,
31 "%s: Not registering target since Host NVME is not enabled\n",
32 __func__);
33 return 0;
34 }
35
36 if (!(fcport->nvme_prli_service_param &
37 (NVME_PRLI_SP_TARGET | NVME_PRLI_SP_DISCOVERY)))
38 return 0;
39
40 INIT_WORK(&fcport->nvme_del_work, qla_nvme_unregister_remote_port);
41 rport = kzalloc(sizeof(*rport), GFP_KERNEL);
42 if (!rport) {
43 ql_log(ql_log_warn, vha, 0x2101,
44 "%s: unable to alloc memory\n", __func__);
45 return -ENOMEM;
46 }
47
48 rport->req.port_name = wwn_to_u64(fcport->port_name);
49 rport->req.node_name = wwn_to_u64(fcport->node_name);
50 rport->req.port_role = 0;
51
52 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_INITIATOR)
53 rport->req.port_role = FC_PORT_ROLE_NVME_INITIATOR;
54
55 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_TARGET)
56 rport->req.port_role |= FC_PORT_ROLE_NVME_TARGET;
57
58 if (fcport->nvme_prli_service_param & NVME_PRLI_SP_DISCOVERY)
59 rport->req.port_role |= FC_PORT_ROLE_NVME_DISCOVERY;
60
61 rport->req.port_id = fcport->d_id.b24;
62
63 ql_log(ql_log_info, vha, 0x2102,
64 "%s: traddr=pn-0x%016llx:nn-0x%016llx PortID:%06x\n",
65 __func__, rport->req.port_name, rport->req.node_name,
66 rport->req.port_id);
67
68 ret = nvme_fc_register_remoteport(vha->nvme_local_port, &rport->req,
69 &fcport->nvme_remote_port);
70 if (ret) {
71 ql_log(ql_log_warn, vha, 0x212e,
72 "Failed to register remote port. Transport returned %d\n",
73 ret);
74 return ret;
75 }
76
77 fcport->nvme_remote_port->private = fcport;
78 fcport->nvme_flag |= NVME_FLAG_REGISTERED;
79 atomic_set(&fcport->nvme_ref_count, 1);
80 init_waitqueue_head(&fcport->nvme_waitQ);
81 rport->fcport = fcport;
82 list_add_tail(&rport->list, &vha->nvme_rport_list);
83 return 0;
84 }
85
86 /* Allocate a queue for NVMe traffic */
87 static int qla_nvme_alloc_queue(struct nvme_fc_local_port *lport, unsigned int qidx,
88 u16 qsize, void **handle)
89 {
90 struct scsi_qla_host *vha;
91 struct qla_hw_data *ha;
92 struct qla_qpair *qpair;
93
94 if (!qidx)
95 qidx++;
96
97 vha = (struct scsi_qla_host *)lport->private;
98 ha = vha->hw;
99
100 ql_log(ql_log_info, vha, 0x2104,
101 "%s: handle %p, idx =%d, qsize %d\n",
102 __func__, handle, qidx, qsize);
103
104 if (qidx > qla_nvme_fc_transport.max_hw_queues) {
105 ql_log(ql_log_warn, vha, 0x212f,
106 "%s: Illegal qidx=%d. Max=%d\n",
107 __func__, qidx, qla_nvme_fc_transport.max_hw_queues);
108 return -EINVAL;
109 }
110
111 if (ha->queue_pair_map[qidx]) {
112 *handle = ha->queue_pair_map[qidx];
113 ql_log(ql_log_info, vha, 0x2121,
114 "Returning existing qpair of %p for idx=%x\n",
115 *handle, qidx);
116 return 0;
117 }
118
119 ql_log(ql_log_warn, vha, 0xffff,
120 "allocating q for idx=%x w/o cpu mask\n", qidx);
121 qpair = qla2xxx_create_qpair(vha, 5, vha->vp_idx, true);
122 if (qpair == NULL) {
123 ql_log(ql_log_warn, vha, 0x2122,
124 "Failed to allocate qpair\n");
125 return -EINVAL;
126 }
127 *handle = qpair;
128
129 return 0;
130 }
131
132 static void qla_nvme_sp_ls_done(void *ptr, int res)
133 {
134 srb_t *sp = ptr;
135 struct srb_iocb *nvme;
136 struct nvmefc_ls_req *fd;
137 struct nvme_private *priv;
138
139 if (atomic_read(&sp->ref_count) == 0) {
140 ql_log(ql_log_warn, sp->fcport->vha, 0x2123,
141 "SP reference-count to ZERO on LS_done -- sp=%p.\n", sp);
142 return;
143 }
144
145 if (!atomic_dec_and_test(&sp->ref_count))
146 return;
147
148 if (res)
149 res = -EINVAL;
150
151 nvme = &sp->u.iocb_cmd;
152 fd = nvme->u.nvme.desc;
153 priv = fd->private;
154 priv->comp_status = res;
155 schedule_work(&priv->ls_work);
156 /* work schedule doesn't need the sp */
157 qla2x00_rel_sp(sp);
158 }
159
160 static void qla_nvme_sp_done(void *ptr, int res)
161 {
162 srb_t *sp = ptr;
163 struct srb_iocb *nvme;
164 struct nvmefc_fcp_req *fd;
165
166 nvme = &sp->u.iocb_cmd;
167 fd = nvme->u.nvme.desc;
168
169 if (!atomic_dec_and_test(&sp->ref_count))
170 return;
171
172 if (!(sp->fcport->nvme_flag & NVME_FLAG_REGISTERED))
173 goto rel;
174
175 if (unlikely(nvme->u.nvme.comp_status || res))
176 fd->status = -EINVAL;
177 else
178 fd->status = 0;
179
180 fd->rcv_rsplen = nvme->u.nvme.rsp_pyld_len;
181 fd->done(fd);
182 rel:
183 qla2xxx_rel_qpair_sp(sp->qpair, sp);
184 }
185
186 static void qla_nvme_ls_abort(struct nvme_fc_local_port *lport,
187 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd)
188 {
189 struct nvme_private *priv = fd->private;
190 fc_port_t *fcport = rport->private;
191 srb_t *sp = priv->sp;
192 int rval;
193 struct qla_hw_data *ha = fcport->vha->hw;
194
195 rval = ha->isp_ops->abort_command(sp);
196 if (rval != QLA_SUCCESS)
197 ql_log(ql_log_warn, fcport->vha, 0x2125,
198 "%s: failed to abort LS command for SP:%p rval=%x\n",
199 __func__, sp, rval);
200
201 ql_dbg(ql_dbg_io, fcport->vha, 0x212b,
202 "%s: aborted sp:%p on fcport:%p\n", __func__, sp, fcport);
203 }
204
205 static void qla_nvme_ls_complete(struct work_struct *work)
206 {
207 struct nvme_private *priv =
208 container_of(work, struct nvme_private, ls_work);
209 struct nvmefc_ls_req *fd = priv->fd;
210
211 fd->done(fd, priv->comp_status);
212 }
213
214 static int qla_nvme_ls_req(struct nvme_fc_local_port *lport,
215 struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd)
216 {
217 fc_port_t *fcport = (fc_port_t *)rport->private;
218 struct srb_iocb *nvme;
219 struct nvme_private *priv = fd->private;
220 struct scsi_qla_host *vha;
221 int rval = QLA_FUNCTION_FAILED;
222 struct qla_hw_data *ha;
223 srb_t *sp;
224
225 if (!(fcport->nvme_flag & NVME_FLAG_REGISTERED))
226 return rval;
227
228 vha = fcport->vha;
229 ha = vha->hw;
230 /* Alloc SRB structure */
231 sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC);
232 if (!sp)
233 return rval;
234
235 sp->type = SRB_NVME_LS;
236 sp->name = "nvme_ls";
237 sp->done = qla_nvme_sp_ls_done;
238 atomic_set(&sp->ref_count, 1);
239 init_waitqueue_head(&sp->nvme_ls_waitQ);
240 nvme = &sp->u.iocb_cmd;
241 priv->sp = sp;
242 priv->fd = fd;
243 INIT_WORK(&priv->ls_work, qla_nvme_ls_complete);
244 nvme->u.nvme.desc = fd;
245 nvme->u.nvme.dir = 0;
246 nvme->u.nvme.dl = 0;
247 nvme->u.nvme.cmd_len = fd->rqstlen;
248 nvme->u.nvme.rsp_len = fd->rsplen;
249 nvme->u.nvme.rsp_dma = fd->rspdma;
250 nvme->u.nvme.timeout_sec = fd->timeout;
251 nvme->u.nvme.cmd_dma = dma_map_single(&ha->pdev->dev, fd->rqstaddr,
252 fd->rqstlen, DMA_TO_DEVICE);
253 dma_sync_single_for_device(&ha->pdev->dev, nvme->u.nvme.cmd_dma,
254 fd->rqstlen, DMA_TO_DEVICE);
255
256 rval = qla2x00_start_sp(sp);
257 if (rval != QLA_SUCCESS) {
258 ql_log(ql_log_warn, vha, 0x700e,
259 "qla2x00_start_sp failed = %d\n", rval);
260 atomic_dec(&sp->ref_count);
261 wake_up(&sp->nvme_ls_waitQ);
262 return rval;
263 }
264
265 return rval;
266 }
267
268 static void qla_nvme_fcp_abort(struct nvme_fc_local_port *lport,
269 struct nvme_fc_remote_port *rport, void *hw_queue_handle,
270 struct nvmefc_fcp_req *fd)
271 {
272 struct nvme_private *priv = fd->private;
273 srb_t *sp = priv->sp;
274 int rval;
275 fc_port_t *fcport = rport->private;
276 struct qla_hw_data *ha = fcport->vha->hw;
277
278 rval = ha->isp_ops->abort_command(sp);
279 if (!rval)
280 ql_log(ql_log_warn, fcport->vha, 0x2127,
281 "%s: failed to abort command for SP:%p rval=%x\n",
282 __func__, sp, rval);
283
284 ql_dbg(ql_dbg_io, fcport->vha, 0x2126,
285 "%s: aborted sp:%p on fcport:%p\n", __func__, sp, fcport);
286 }
287
288 static void qla_nvme_poll(struct nvme_fc_local_port *lport, void *hw_queue_handle)
289 {
290 struct scsi_qla_host *vha = lport->private;
291 unsigned long flags;
292 struct qla_qpair *qpair = (struct qla_qpair *)hw_queue_handle;
293
294 /* Acquire ring specific lock */
295 spin_lock_irqsave(&qpair->qp_lock, flags);
296 qla24xx_process_response_queue(vha, qpair->rsp);
297 spin_unlock_irqrestore(&qpair->qp_lock, flags);
298 }
299
300 static int qla2x00_start_nvme_mq(srb_t *sp)
301 {
302 unsigned long flags;
303 uint32_t *clr_ptr;
304 uint32_t index;
305 uint32_t handle;
306 struct cmd_nvme *cmd_pkt;
307 uint16_t cnt, i;
308 uint16_t req_cnt;
309 uint16_t tot_dsds;
310 uint16_t avail_dsds;
311 uint32_t *cur_dsd;
312 struct req_que *req = NULL;
313 struct scsi_qla_host *vha = sp->fcport->vha;
314 struct qla_hw_data *ha = vha->hw;
315 struct qla_qpair *qpair = sp->qpair;
316 struct srb_iocb *nvme = &sp->u.iocb_cmd;
317 struct scatterlist *sgl, *sg;
318 struct nvmefc_fcp_req *fd = nvme->u.nvme.desc;
319 uint32_t rval = QLA_SUCCESS;
320
321 /* Setup qpair pointers */
322 req = qpair->req;
323 tot_dsds = fd->sg_cnt;
324
325 /* Acquire qpair specific lock */
326 spin_lock_irqsave(&qpair->qp_lock, flags);
327
328 /* Check for room in outstanding command list. */
329 handle = req->current_outstanding_cmd;
330 for (index = 1; index < req->num_outstanding_cmds; index++) {
331 handle++;
332 if (handle == req->num_outstanding_cmds)
333 handle = 1;
334 if (!req->outstanding_cmds[handle])
335 break;
336 }
337
338 if (index == req->num_outstanding_cmds) {
339 rval = -1;
340 goto queuing_error;
341 }
342 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
343 if (req->cnt < (req_cnt + 2)) {
344 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
345 RD_REG_DWORD_RELAXED(req->req_q_out);
346
347 if (req->ring_index < cnt)
348 req->cnt = cnt - req->ring_index;
349 else
350 req->cnt = req->length - (req->ring_index - cnt);
351
352 if (req->cnt < (req_cnt + 2)){
353 rval = -1;
354 goto queuing_error;
355 }
356 }
357
358 if (unlikely(!fd->sqid)) {
359 struct nvme_fc_cmd_iu *cmd = fd->cmdaddr;
360 if (cmd->sqe.common.opcode == nvme_admin_async_event) {
361 nvme->u.nvme.aen_op = 1;
362 atomic_inc(&vha->nvme_active_aen_cnt);
363 }
364 }
365
366 /* Build command packet. */
367 req->current_outstanding_cmd = handle;
368 req->outstanding_cmds[handle] = sp;
369 sp->handle = handle;
370 req->cnt -= req_cnt;
371
372 cmd_pkt = (struct cmd_nvme *)req->ring_ptr;
373 cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
374
375 /* Zero out remaining portion of packet. */
376 clr_ptr = (uint32_t *)cmd_pkt + 2;
377 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
378
379 cmd_pkt->entry_status = 0;
380
381 /* Update entry type to indicate Command NVME IOCB */
382 cmd_pkt->entry_type = COMMAND_NVME;
383
384 /* No data transfer how do we check buffer len == 0?? */
385 if (fd->io_dir == NVMEFC_FCP_READ) {
386 cmd_pkt->control_flags =
387 cpu_to_le16(CF_READ_DATA | CF_NVME_ENABLE);
388 vha->qla_stats.input_bytes += fd->payload_length;
389 vha->qla_stats.input_requests++;
390 } else if (fd->io_dir == NVMEFC_FCP_WRITE) {
391 cmd_pkt->control_flags =
392 cpu_to_le16(CF_WRITE_DATA | CF_NVME_ENABLE);
393 vha->qla_stats.output_bytes += fd->payload_length;
394 vha->qla_stats.output_requests++;
395 } else if (fd->io_dir == 0) {
396 cmd_pkt->control_flags = cpu_to_le16(CF_NVME_ENABLE);
397 }
398
399 /* Set NPORT-ID */
400 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
401 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
402 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
403 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
404 cmd_pkt->vp_index = sp->fcport->vha->vp_idx;
405
406 /* NVME RSP IU */
407 cmd_pkt->nvme_rsp_dsd_len = cpu_to_le16(fd->rsplen);
408 cmd_pkt->nvme_rsp_dseg_address[0] = cpu_to_le32(LSD(fd->rspdma));
409 cmd_pkt->nvme_rsp_dseg_address[1] = cpu_to_le32(MSD(fd->rspdma));
410
411 /* NVME CNMD IU */
412 cmd_pkt->nvme_cmnd_dseg_len = cpu_to_le16(fd->cmdlen);
413 cmd_pkt->nvme_cmnd_dseg_address[0] = cpu_to_le32(LSD(fd->cmddma));
414 cmd_pkt->nvme_cmnd_dseg_address[1] = cpu_to_le32(MSD(fd->cmddma));
415
416 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
417 cmd_pkt->byte_count = cpu_to_le32(fd->payload_length);
418
419 /* One DSD is available in the Command Type NVME IOCB */
420 avail_dsds = 1;
421 cur_dsd = (uint32_t *)&cmd_pkt->nvme_data_dseg_address[0];
422 sgl = fd->first_sgl;
423
424 /* Load data segments */
425 for_each_sg(sgl, sg, tot_dsds, i) {
426 dma_addr_t sle_dma;
427 cont_a64_entry_t *cont_pkt;
428
429 /* Allocate additional continuation packets? */
430 if (avail_dsds == 0) {
431 /*
432 * Five DSDs are available in the Continuation
433 * Type 1 IOCB.
434 */
435
436 /* Adjust ring index */
437 req->ring_index++;
438 if (req->ring_index == req->length) {
439 req->ring_index = 0;
440 req->ring_ptr = req->ring;
441 } else {
442 req->ring_ptr++;
443 }
444 cont_pkt = (cont_a64_entry_t *)req->ring_ptr;
445 *((uint32_t *)(&cont_pkt->entry_type)) =
446 cpu_to_le32(CONTINUE_A64_TYPE);
447
448 cur_dsd = (uint32_t *)cont_pkt->dseg_0_address;
449 avail_dsds = 5;
450 }
451
452 sle_dma = sg_dma_address(sg);
453 *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
454 *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
455 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
456 avail_dsds--;
457 }
458
459 /* Set total entry count. */
460 cmd_pkt->entry_count = (uint8_t)req_cnt;
461 wmb();
462
463 /* Adjust ring index. */
464 req->ring_index++;
465 if (req->ring_index == req->length) {
466 req->ring_index = 0;
467 req->ring_ptr = req->ring;
468 } else {
469 req->ring_ptr++;
470 }
471
472 /* Set chip new ring index. */
473 WRT_REG_DWORD(req->req_q_in, req->ring_index);
474
475 queuing_error:
476 spin_unlock_irqrestore(&qpair->qp_lock, flags);
477 return rval;
478 }
479
480 /* Post a command */
481 static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport,
482 struct nvme_fc_remote_port *rport, void *hw_queue_handle,
483 struct nvmefc_fcp_req *fd)
484 {
485 fc_port_t *fcport;
486 struct srb_iocb *nvme;
487 struct scsi_qla_host *vha;
488 int rval = QLA_FUNCTION_FAILED;
489 srb_t *sp;
490 struct qla_qpair *qpair = (struct qla_qpair *)hw_queue_handle;
491 struct nvme_private *priv;
492
493 if (!fd) {
494 ql_log(ql_log_warn, NULL, 0x2134, "NO NVMe FCP request\n");
495 return rval;
496 }
497
498 priv = fd->private;
499 fcport = (fc_port_t *)rport->private;
500 if (!fcport) {
501 ql_log(ql_log_warn, NULL, 0x210e, "No fcport ptr\n");
502 return rval;
503 }
504
505 vha = fcport->vha;
506 if ((!qpair) || (!(fcport->nvme_flag & NVME_FLAG_REGISTERED)))
507 return -EBUSY;
508
509 /* Alloc SRB structure */
510 sp = qla2xxx_get_qpair_sp(qpair, fcport, GFP_ATOMIC);
511 if (!sp)
512 return -EIO;
513
514 atomic_set(&sp->ref_count, 1);
515 init_waitqueue_head(&sp->nvme_ls_waitQ);
516 priv->sp = sp;
517 sp->type = SRB_NVME_CMD;
518 sp->name = "nvme_cmd";
519 sp->done = qla_nvme_sp_done;
520 sp->qpair = qpair;
521 nvme = &sp->u.iocb_cmd;
522 nvme->u.nvme.desc = fd;
523
524 rval = qla2x00_start_nvme_mq(sp);
525 if (rval != QLA_SUCCESS) {
526 ql_log(ql_log_warn, vha, 0x212d,
527 "qla2x00_start_nvme_mq failed = %d\n", rval);
528 atomic_dec(&sp->ref_count);
529 wake_up(&sp->nvme_ls_waitQ);
530 return -EIO;
531 }
532
533 return rval;
534 }
535
536 static void qla_nvme_localport_delete(struct nvme_fc_local_port *lport)
537 {
538 struct scsi_qla_host *vha = lport->private;
539
540 atomic_dec(&vha->nvme_ref_count);
541 wake_up_all(&vha->nvme_waitQ);
542
543 ql_log(ql_log_info, vha, 0x210f,
544 "localport delete of %p completed.\n", vha->nvme_local_port);
545 vha->nvme_local_port = NULL;
546 }
547
548 static void qla_nvme_remoteport_delete(struct nvme_fc_remote_port *rport)
549 {
550 fc_port_t *fcport;
551 struct nvme_rport *r_port, *trport;
552
553 fcport = (fc_port_t *)rport->private;
554 fcport->nvme_remote_port = NULL;
555 fcport->nvme_flag &= ~NVME_FLAG_REGISTERED;
556 atomic_dec(&fcport->nvme_ref_count);
557 wake_up_all(&fcport->nvme_waitQ);
558
559 list_for_each_entry_safe(r_port, trport,
560 &fcport->vha->nvme_rport_list, list) {
561 if (r_port->fcport == fcport) {
562 list_del(&r_port->list);
563 break;
564 }
565 }
566 kfree(r_port);
567
568 ql_log(ql_log_info, fcport->vha, 0x2110,
569 "remoteport_delete of %p completed.\n", fcport);
570 }
571
572 static struct nvme_fc_port_template qla_nvme_fc_transport = {
573 .localport_delete = qla_nvme_localport_delete,
574 .remoteport_delete = qla_nvme_remoteport_delete,
575 .create_queue = qla_nvme_alloc_queue,
576 .delete_queue = NULL,
577 .ls_req = qla_nvme_ls_req,
578 .ls_abort = qla_nvme_ls_abort,
579 .fcp_io = qla_nvme_post_cmd,
580 .fcp_abort = qla_nvme_fcp_abort,
581 .poll_queue = qla_nvme_poll,
582 .max_hw_queues = 8,
583 .max_sgl_segments = 128,
584 .max_dif_sgl_segments = 64,
585 .dma_boundary = 0xFFFFFFFF,
586 .local_priv_sz = 8,
587 .remote_priv_sz = 0,
588 .lsrqst_priv_sz = sizeof(struct nvme_private),
589 .fcprqst_priv_sz = sizeof(struct nvme_private),
590 };
591
592 #define NVME_ABORT_POLLING_PERIOD 2
593 static int qla_nvme_wait_on_command(srb_t *sp)
594 {
595 int ret = QLA_SUCCESS;
596
597 wait_event_timeout(sp->nvme_ls_waitQ, (atomic_read(&sp->ref_count) > 1),
598 NVME_ABORT_POLLING_PERIOD*HZ);
599
600 if (atomic_read(&sp->ref_count) > 1)
601 ret = QLA_FUNCTION_FAILED;
602
603 return ret;
604 }
605
606 static int qla_nvme_wait_on_rport_del(fc_port_t *fcport)
607 {
608 int ret = QLA_SUCCESS;
609
610 wait_event_timeout(fcport->nvme_waitQ,
611 atomic_read(&fcport->nvme_ref_count),
612 NVME_ABORT_POLLING_PERIOD*HZ);
613
614 if (atomic_read(&fcport->nvme_ref_count)) {
615 ret = QLA_FUNCTION_FAILED;
616 ql_log(ql_log_info, fcport->vha, 0x2111,
617 "timed out waiting for fcport=%p to delete\n", fcport);
618 }
619
620 return ret;
621 }
622
623 void qla_nvme_abort(struct qla_hw_data *ha, srb_t *sp)
624 {
625 int rval;
626
627 rval = ha->isp_ops->abort_command(sp);
628 if (!rval) {
629 if (!qla_nvme_wait_on_command(sp))
630 ql_log(ql_log_warn, NULL, 0x2112,
631 "nvme_wait_on_command timed out waiting on sp=%p\n",
632 sp);
633 }
634 }
635
636 static void qla_nvme_abort_all(fc_port_t *fcport)
637 {
638 int que, cnt;
639 unsigned long flags;
640 srb_t *sp;
641 struct qla_hw_data *ha = fcport->vha->hw;
642 struct req_que *req;
643
644 spin_lock_irqsave(&ha->hardware_lock, flags);
645 for (que = 0; que < ha->max_req_queues; que++) {
646 req = ha->req_q_map[que];
647 if (!req)
648 continue;
649 if (!req->outstanding_cmds)
650 continue;
651 for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
652 sp = req->outstanding_cmds[cnt];
653 if ((sp) && ((sp->type == SRB_NVME_CMD) ||
654 (sp->type == SRB_NVME_LS)) &&
655 (sp->fcport == fcport)) {
656 atomic_inc(&sp->ref_count);
657 spin_unlock_irqrestore(&ha->hardware_lock,
658 flags);
659 qla_nvme_abort(ha, sp);
660 spin_lock_irqsave(&ha->hardware_lock, flags);
661 req->outstanding_cmds[cnt] = NULL;
662 sp->done(sp, 1);
663 }
664 }
665 }
666 spin_unlock_irqrestore(&ha->hardware_lock, flags);
667 }
668
669 static void qla_nvme_unregister_remote_port(struct work_struct *work)
670 {
671 struct fc_port *fcport = container_of(work, struct fc_port,
672 nvme_del_work);
673 struct nvme_rport *rport, *trport;
674
675 if (!IS_ENABLED(CONFIG_NVME_FC))
676 return;
677
678 list_for_each_entry_safe(rport, trport,
679 &fcport->vha->nvme_rport_list, list) {
680 if (rport->fcport == fcport) {
681 ql_log(ql_log_info, fcport->vha, 0x2113,
682 "%s: fcport=%p\n", __func__, fcport);
683 nvme_fc_unregister_remoteport(
684 fcport->nvme_remote_port);
685 }
686 }
687 }
688
689 void qla_nvme_delete(scsi_qla_host_t *vha)
690 {
691 struct nvme_rport *rport, *trport;
692 fc_port_t *fcport;
693 int nv_ret;
694
695 if (!IS_ENABLED(CONFIG_NVME_FC))
696 return;
697
698 list_for_each_entry_safe(rport, trport, &vha->nvme_rport_list, list) {
699 fcport = rport->fcport;
700
701 ql_log(ql_log_info, fcport->vha, 0x2114, "%s: fcport=%p\n",
702 __func__, fcport);
703
704 nvme_fc_unregister_remoteport(fcport->nvme_remote_port);
705 qla_nvme_wait_on_rport_del(fcport);
706 qla_nvme_abort_all(fcport);
707 }
708
709 if (vha->nvme_local_port) {
710 nv_ret = nvme_fc_unregister_localport(vha->nvme_local_port);
711 if (nv_ret == 0)
712 ql_log(ql_log_info, vha, 0x2116,
713 "unregistered localport=%p\n",
714 vha->nvme_local_port);
715 else
716 ql_log(ql_log_info, vha, 0x2115,
717 "Unregister of localport failed\n");
718 }
719 }
720
721 void qla_nvme_register_hba(scsi_qla_host_t *vha)
722 {
723 struct nvme_fc_port_template *tmpl;
724 struct qla_hw_data *ha;
725 struct nvme_fc_port_info pinfo;
726 int ret;
727
728 if (!IS_ENABLED(CONFIG_NVME_FC))
729 return;
730
731 ha = vha->hw;
732 tmpl = &qla_nvme_fc_transport;
733
734 WARN_ON(vha->nvme_local_port);
735 WARN_ON(ha->max_req_queues < 3);
736
737 qla_nvme_fc_transport.max_hw_queues =
738 min((uint8_t)(qla_nvme_fc_transport.max_hw_queues),
739 (uint8_t)(ha->max_req_queues - 2));
740
741 pinfo.node_name = wwn_to_u64(vha->node_name);
742 pinfo.port_name = wwn_to_u64(vha->port_name);
743 pinfo.port_role = FC_PORT_ROLE_NVME_INITIATOR;
744 pinfo.port_id = vha->d_id.b24;
745
746 ql_log(ql_log_info, vha, 0xffff,
747 "register_localport: host-traddr=pn-0x%llx:nn-0x%llx on portID:%x\n",
748 pinfo.port_name, pinfo.node_name, pinfo.port_id);
749 qla_nvme_fc_transport.dma_boundary = vha->host->dma_boundary;
750
751 ret = nvme_fc_register_localport(&pinfo, tmpl,
752 get_device(&ha->pdev->dev), &vha->nvme_local_port);
753 if (ret) {
754 ql_log(ql_log_warn, vha, 0xffff,
755 "register_localport failed: ret=%x\n", ret);
756 return;
757 }
758 atomic_set(&vha->nvme_ref_count, 1);
759 vha->nvme_local_port->private = vha;
760 init_waitqueue_head(&vha->nvme_waitQ);
761 }
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