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WIP FPC-III support
[linux/fpc-iii.git] / drivers / scsi / qla2xxx / qla_iocb.c
blobc532c74ca1ab9e17ece023d6ee69e4b5edc1a799
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * QLogic Fibre Channel HBA Driver
4 * Copyright (c) 2003-2014 QLogic Corporation
5 */
6 #include "qla_def.h"
7 #include "qla_target.h"
8
9 #include <linux/blkdev.h>
10 #include <linux/delay.h>
11
12 #include <scsi/scsi_tcq.h>
13
14 /**
15 * qla2x00_get_cmd_direction() - Determine control_flag data direction.
16 * @sp: SCSI command
17 *
18 * Returns the proper CF_* direction based on CDB.
19 */
20 static inline uint16_t
21 qla2x00_get_cmd_direction(srb_t *sp)
22 {
23 uint16_t cflags;
24 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
25 struct scsi_qla_host *vha = sp->vha;
26
27 cflags = 0;
28
29 /* Set transfer direction */
30 if (cmd->sc_data_direction == DMA_TO_DEVICE) {
31 cflags = CF_WRITE;
32 vha->qla_stats.output_bytes += scsi_bufflen(cmd);
33 vha->qla_stats.output_requests++;
34 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
35 cflags = CF_READ;
36 vha->qla_stats.input_bytes += scsi_bufflen(cmd);
37 vha->qla_stats.input_requests++;
38 }
39 return (cflags);
40 }
41
42 /**
43 * qla2x00_calc_iocbs_32() - Determine number of Command Type 2 and
44 * Continuation Type 0 IOCBs to allocate.
45 *
46 * @dsds: number of data segment descriptors needed
47 *
48 * Returns the number of IOCB entries needed to store @dsds.
49 */
50 uint16_t
51 qla2x00_calc_iocbs_32(uint16_t dsds)
52 {
53 uint16_t iocbs;
54
55 iocbs = 1;
56 if (dsds > 3) {
57 iocbs += (dsds - 3) / 7;
58 if ((dsds - 3) % 7)
59 iocbs++;
60 }
61 return (iocbs);
62 }
63
64 /**
65 * qla2x00_calc_iocbs_64() - Determine number of Command Type 3 and
66 * Continuation Type 1 IOCBs to allocate.
67 *
68 * @dsds: number of data segment descriptors needed
69 *
70 * Returns the number of IOCB entries needed to store @dsds.
71 */
72 uint16_t
73 qla2x00_calc_iocbs_64(uint16_t dsds)
74 {
75 uint16_t iocbs;
76
77 iocbs = 1;
78 if (dsds > 2) {
79 iocbs += (dsds - 2) / 5;
80 if ((dsds - 2) % 5)
81 iocbs++;
82 }
83 return (iocbs);
84 }
85
86 /**
87 * qla2x00_prep_cont_type0_iocb() - Initialize a Continuation Type 0 IOCB.
88 * @vha: HA context
89 *
90 * Returns a pointer to the Continuation Type 0 IOCB packet.
91 */
92 static inline cont_entry_t *
93 qla2x00_prep_cont_type0_iocb(struct scsi_qla_host *vha)
94 {
95 cont_entry_t *cont_pkt;
96 struct req_que *req = vha->req;
97 /* Adjust ring index. */
98 req->ring_index++;
99 if (req->ring_index == req->length) {
100 req->ring_index = 0;
101 req->ring_ptr = req->ring;
102 } else {
103 req->ring_ptr++;
104 }
105
106 cont_pkt = (cont_entry_t *)req->ring_ptr;
107
108 /* Load packet defaults. */
109 put_unaligned_le32(CONTINUE_TYPE, &cont_pkt->entry_type);
110
111 return (cont_pkt);
112 }
113
114 /**
115 * qla2x00_prep_cont_type1_iocb() - Initialize a Continuation Type 1 IOCB.
116 * @vha: HA context
117 * @req: request queue
118 *
119 * Returns a pointer to the continuation type 1 IOCB packet.
120 */
121 static inline cont_a64_entry_t *
122 qla2x00_prep_cont_type1_iocb(scsi_qla_host_t *vha, struct req_que *req)
123 {
124 cont_a64_entry_t *cont_pkt;
125
126 /* Adjust ring index. */
127 req->ring_index++;
128 if (req->ring_index == req->length) {
129 req->ring_index = 0;
130 req->ring_ptr = req->ring;
131 } else {
132 req->ring_ptr++;
133 }
134
135 cont_pkt = (cont_a64_entry_t *)req->ring_ptr;
136
137 /* Load packet defaults. */
138 put_unaligned_le32(IS_QLAFX00(vha->hw) ? CONTINUE_A64_TYPE_FX00 :
139 CONTINUE_A64_TYPE, &cont_pkt->entry_type);
140
141 return (cont_pkt);
142 }
143
144 inline int
145 qla24xx_configure_prot_mode(srb_t *sp, uint16_t *fw_prot_opts)
146 {
147 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
148 uint8_t guard = scsi_host_get_guard(cmd->device->host);
149
150 /* We always use DIFF Bundling for best performance */
151 *fw_prot_opts = 0;
152
153 /* Translate SCSI opcode to a protection opcode */
154 switch (scsi_get_prot_op(cmd)) {
155 case SCSI_PROT_READ_STRIP:
156 *fw_prot_opts |= PO_MODE_DIF_REMOVE;
157 break;
158 case SCSI_PROT_WRITE_INSERT:
159 *fw_prot_opts |= PO_MODE_DIF_INSERT;
160 break;
161 case SCSI_PROT_READ_INSERT:
162 *fw_prot_opts |= PO_MODE_DIF_INSERT;
163 break;
164 case SCSI_PROT_WRITE_STRIP:
165 *fw_prot_opts |= PO_MODE_DIF_REMOVE;
166 break;
167 case SCSI_PROT_READ_PASS:
168 case SCSI_PROT_WRITE_PASS:
169 if (guard & SHOST_DIX_GUARD_IP)
170 *fw_prot_opts |= PO_MODE_DIF_TCP_CKSUM;
171 else
172 *fw_prot_opts |= PO_MODE_DIF_PASS;
173 break;
174 default: /* Normal Request */
175 *fw_prot_opts |= PO_MODE_DIF_PASS;
176 break;
177 }
178
179 return scsi_prot_sg_count(cmd);
180 }
181
182 /*
183 * qla2x00_build_scsi_iocbs_32() - Build IOCB command utilizing 32bit
184 * capable IOCB types.
185 *
186 * @sp: SRB command to process
187 * @cmd_pkt: Command type 2 IOCB
188 * @tot_dsds: Total number of segments to transfer
189 */
190 void qla2x00_build_scsi_iocbs_32(srb_t *sp, cmd_entry_t *cmd_pkt,
191 uint16_t tot_dsds)
192 {
193 uint16_t avail_dsds;
194 struct dsd32 *cur_dsd;
195 scsi_qla_host_t *vha;
196 struct scsi_cmnd *cmd;
197 struct scatterlist *sg;
198 int i;
199
200 cmd = GET_CMD_SP(sp);
201
202 /* Update entry type to indicate Command Type 2 IOCB */
203 put_unaligned_le32(COMMAND_TYPE, &cmd_pkt->entry_type);
204
205 /* No data transfer */
206 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
207 cmd_pkt->byte_count = cpu_to_le32(0);
208 return;
209 }
210
211 vha = sp->vha;
212 cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp));
213
214 /* Three DSDs are available in the Command Type 2 IOCB */
215 avail_dsds = ARRAY_SIZE(cmd_pkt->dsd32);
216 cur_dsd = cmd_pkt->dsd32;
217
218 /* Load data segments */
219 scsi_for_each_sg(cmd, sg, tot_dsds, i) {
220 cont_entry_t *cont_pkt;
221
222 /* Allocate additional continuation packets? */
223 if (avail_dsds == 0) {
224 /*
225 * Seven DSDs are available in the Continuation
226 * Type 0 IOCB.
227 */
228 cont_pkt = qla2x00_prep_cont_type0_iocb(vha);
229 cur_dsd = cont_pkt->dsd;
230 avail_dsds = ARRAY_SIZE(cont_pkt->dsd);
231 }
232
233 append_dsd32(&cur_dsd, sg);
234 avail_dsds--;
235 }
236 }
237
238 /**
239 * qla2x00_build_scsi_iocbs_64() - Build IOCB command utilizing 64bit
240 * capable IOCB types.
241 *
242 * @sp: SRB command to process
243 * @cmd_pkt: Command type 3 IOCB
244 * @tot_dsds: Total number of segments to transfer
245 */
246 void qla2x00_build_scsi_iocbs_64(srb_t *sp, cmd_entry_t *cmd_pkt,
247 uint16_t tot_dsds)
248 {
249 uint16_t avail_dsds;
250 struct dsd64 *cur_dsd;
251 scsi_qla_host_t *vha;
252 struct scsi_cmnd *cmd;
253 struct scatterlist *sg;
254 int i;
255
256 cmd = GET_CMD_SP(sp);
257
258 /* Update entry type to indicate Command Type 3 IOCB */
259 put_unaligned_le32(COMMAND_A64_TYPE, &cmd_pkt->entry_type);
260
261 /* No data transfer */
262 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
263 cmd_pkt->byte_count = cpu_to_le32(0);
264 return;
265 }
266
267 vha = sp->vha;
268 cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp));
269
270 /* Two DSDs are available in the Command Type 3 IOCB */
271 avail_dsds = ARRAY_SIZE(cmd_pkt->dsd64);
272 cur_dsd = cmd_pkt->dsd64;
273
274 /* Load data segments */
275 scsi_for_each_sg(cmd, sg, tot_dsds, i) {
276 cont_a64_entry_t *cont_pkt;
277
278 /* Allocate additional continuation packets? */
279 if (avail_dsds == 0) {
280 /*
281 * Five DSDs are available in the Continuation
282 * Type 1 IOCB.
283 */
284 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req);
285 cur_dsd = cont_pkt->dsd;
286 avail_dsds = ARRAY_SIZE(cont_pkt->dsd);
287 }
288
289 append_dsd64(&cur_dsd, sg);
290 avail_dsds--;
291 }
292 }
293
294 /*
295 * Find the first handle that is not in use, starting from
296 * req->current_outstanding_cmd + 1. The caller must hold the lock that is
297 * associated with @req.
298 */
299 uint32_t qla2xxx_get_next_handle(struct req_que *req)
300 {
301 uint32_t index, handle = req->current_outstanding_cmd;
302
303 for (index = 1; index < req->num_outstanding_cmds; index++) {
304 handle++;
305 if (handle == req->num_outstanding_cmds)
306 handle = 1;
307 if (!req->outstanding_cmds[handle])
308 return handle;
309 }
310
311 return 0;
312 }
313
314 /**
315 * qla2x00_start_scsi() - Send a SCSI command to the ISP
316 * @sp: command to send to the ISP
317 *
318 * Returns non-zero if a failure occurred, else zero.
319 */
320 int
321 qla2x00_start_scsi(srb_t *sp)
322 {
323 int nseg;
324 unsigned long flags;
325 scsi_qla_host_t *vha;
326 struct scsi_cmnd *cmd;
327 uint32_t *clr_ptr;
328 uint32_t handle;
329 cmd_entry_t *cmd_pkt;
330 uint16_t cnt;
331 uint16_t req_cnt;
332 uint16_t tot_dsds;
333 struct device_reg_2xxx __iomem *reg;
334 struct qla_hw_data *ha;
335 struct req_que *req;
336 struct rsp_que *rsp;
337
338 /* Setup device pointers. */
339 vha = sp->vha;
340 ha = vha->hw;
341 reg = &ha->iobase->isp;
342 cmd = GET_CMD_SP(sp);
343 req = ha->req_q_map[0];
344 rsp = ha->rsp_q_map[0];
345 /* So we know we haven't pci_map'ed anything yet */
346 tot_dsds = 0;
347
348 /* Send marker if required */
349 if (vha->marker_needed != 0) {
350 if (qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL) !=
351 QLA_SUCCESS) {
352 return (QLA_FUNCTION_FAILED);
353 }
354 vha->marker_needed = 0;
355 }
356
357 /* Acquire ring specific lock */
358 spin_lock_irqsave(&ha->hardware_lock, flags);
359
360 handle = qla2xxx_get_next_handle(req);
361 if (handle == 0)
362 goto queuing_error;
363
364 /* Map the sg table so we have an accurate count of sg entries needed */
365 if (scsi_sg_count(cmd)) {
366 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
367 scsi_sg_count(cmd), cmd->sc_data_direction);
368 if (unlikely(!nseg))
369 goto queuing_error;
370 } else
371 nseg = 0;
372
373 tot_dsds = nseg;
374
375 /* Calculate the number of request entries needed. */
376 req_cnt = ha->isp_ops->calc_req_entries(tot_dsds);
377 if (req->cnt < (req_cnt + 2)) {
378 cnt = rd_reg_word_relaxed(ISP_REQ_Q_OUT(ha, reg));
379 if (req->ring_index < cnt)
380 req->cnt = cnt - req->ring_index;
381 else
382 req->cnt = req->length -
383 (req->ring_index - cnt);
384 /* If still no head room then bail out */
385 if (req->cnt < (req_cnt + 2))
386 goto queuing_error;
387 }
388
389 /* Build command packet */
390 req->current_outstanding_cmd = handle;
391 req->outstanding_cmds[handle] = sp;
392 sp->handle = handle;
393 cmd->host_scribble = (unsigned char *)(unsigned long)handle;
394 req->cnt -= req_cnt;
395
396 cmd_pkt = (cmd_entry_t *)req->ring_ptr;
397 cmd_pkt->handle = handle;
398 /* Zero out remaining portion of packet. */
399 clr_ptr = (uint32_t *)cmd_pkt + 2;
400 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
401 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
402
403 /* Set target ID and LUN number*/
404 SET_TARGET_ID(ha, cmd_pkt->target, sp->fcport->loop_id);
405 cmd_pkt->lun = cpu_to_le16(cmd->device->lun);
406 cmd_pkt->control_flags = cpu_to_le16(CF_SIMPLE_TAG);
407
408 /* Load SCSI command packet. */
409 memcpy(cmd_pkt->scsi_cdb, cmd->cmnd, cmd->cmd_len);
410 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
411
412 /* Build IOCB segments */
413 ha->isp_ops->build_iocbs(sp, cmd_pkt, tot_dsds);
414
415 /* Set total data segment count. */
416 cmd_pkt->entry_count = (uint8_t)req_cnt;
417 wmb();
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 sp->flags |= SRB_DMA_VALID;
428
429 /* Set chip new ring index. */
430 wrt_reg_word(ISP_REQ_Q_IN(ha, reg), req->ring_index);
431 rd_reg_word_relaxed(ISP_REQ_Q_IN(ha, reg)); /* PCI Posting. */
432
433 /* Manage unprocessed RIO/ZIO commands in response queue. */
434 if (vha->flags.process_response_queue &&
435 rsp->ring_ptr->signature != RESPONSE_PROCESSED)
436 qla2x00_process_response_queue(rsp);
437
438 spin_unlock_irqrestore(&ha->hardware_lock, flags);
439 return (QLA_SUCCESS);
440
441 queuing_error:
442 if (tot_dsds)
443 scsi_dma_unmap(cmd);
444
445 spin_unlock_irqrestore(&ha->hardware_lock, flags);
446
447 return (QLA_FUNCTION_FAILED);
448 }
449
450 /**
451 * qla2x00_start_iocbs() - Execute the IOCB command
452 * @vha: HA context
453 * @req: request queue
454 */
455 void
456 qla2x00_start_iocbs(struct scsi_qla_host *vha, struct req_que *req)
457 {
458 struct qla_hw_data *ha = vha->hw;
459 device_reg_t *reg = ISP_QUE_REG(ha, req->id);
460
461 if (IS_P3P_TYPE(ha)) {
462 qla82xx_start_iocbs(vha);
463 } else {
464 /* Adjust ring index. */
465 req->ring_index++;
466 if (req->ring_index == req->length) {
467 req->ring_index = 0;
468 req->ring_ptr = req->ring;
469 } else
470 req->ring_ptr++;
471
472 /* Set chip new ring index. */
473 if (ha->mqenable || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
474 wrt_reg_dword(req->req_q_in, req->ring_index);
475 } else if (IS_QLA83XX(ha)) {
476 wrt_reg_dword(req->req_q_in, req->ring_index);
477 rd_reg_dword_relaxed(&ha->iobase->isp24.hccr);
478 } else if (IS_QLAFX00(ha)) {
479 wrt_reg_dword(&reg->ispfx00.req_q_in, req->ring_index);
480 rd_reg_dword_relaxed(&reg->ispfx00.req_q_in);
481 QLAFX00_SET_HST_INTR(ha, ha->rqstq_intr_code);
482 } else if (IS_FWI2_CAPABLE(ha)) {
483 wrt_reg_dword(&reg->isp24.req_q_in, req->ring_index);
484 rd_reg_dword_relaxed(&reg->isp24.req_q_in);
485 } else {
486 wrt_reg_word(ISP_REQ_Q_IN(ha, &reg->isp),
487 req->ring_index);
488 rd_reg_word_relaxed(ISP_REQ_Q_IN(ha, &reg->isp));
489 }
490 }
491 }
492
493 /**
494 * qla2x00_marker() - Send a marker IOCB to the firmware.
495 * @vha: HA context
496 * @qpair: queue pair pointer
497 * @loop_id: loop ID
498 * @lun: LUN
499 * @type: marker modifier
500 *
501 * Can be called from both normal and interrupt context.
502 *
503 * Returns non-zero if a failure occurred, else zero.
504 */
505 static int
506 __qla2x00_marker(struct scsi_qla_host *vha, struct qla_qpair *qpair,
507 uint16_t loop_id, uint64_t lun, uint8_t type)
508 {
509 mrk_entry_t *mrk;
510 struct mrk_entry_24xx *mrk24 = NULL;
511 struct req_que *req = qpair->req;
512 struct qla_hw_data *ha = vha->hw;
513 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
514
515 mrk = (mrk_entry_t *)__qla2x00_alloc_iocbs(qpair, NULL);
516 if (mrk == NULL) {
517 ql_log(ql_log_warn, base_vha, 0x3026,
518 "Failed to allocate Marker IOCB.\n");
519
520 return (QLA_FUNCTION_FAILED);
521 }
522
523 mrk->entry_type = MARKER_TYPE;
524 mrk->modifier = type;
525 if (type != MK_SYNC_ALL) {
526 if (IS_FWI2_CAPABLE(ha)) {
527 mrk24 = (struct mrk_entry_24xx *) mrk;
528 mrk24->nport_handle = cpu_to_le16(loop_id);
529 int_to_scsilun(lun, (struct scsi_lun *)&mrk24->lun);
530 host_to_fcp_swap(mrk24->lun, sizeof(mrk24->lun));
531 mrk24->vp_index = vha->vp_idx;
532 mrk24->handle = make_handle(req->id, mrk24->handle);
533 } else {
534 SET_TARGET_ID(ha, mrk->target, loop_id);
535 mrk->lun = cpu_to_le16((uint16_t)lun);
536 }
537 }
538 wmb();
539
540 qla2x00_start_iocbs(vha, req);
541
542 return (QLA_SUCCESS);
543 }
544
545 int
546 qla2x00_marker(struct scsi_qla_host *vha, struct qla_qpair *qpair,
547 uint16_t loop_id, uint64_t lun, uint8_t type)
548 {
549 int ret;
550 unsigned long flags = 0;
551
552 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
553 ret = __qla2x00_marker(vha, qpair, loop_id, lun, type);
554 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
555
556 return (ret);
557 }
558
559 /*
560 * qla2x00_issue_marker
561 *
562 * Issue marker
563 * Caller CAN have hardware lock held as specified by ha_locked parameter.
564 * Might release it, then reaquire.
565 */
566 int qla2x00_issue_marker(scsi_qla_host_t *vha, int ha_locked)
567 {
568 if (ha_locked) {
569 if (__qla2x00_marker(vha, vha->hw->base_qpair, 0, 0,
570 MK_SYNC_ALL) != QLA_SUCCESS)
571 return QLA_FUNCTION_FAILED;
572 } else {
573 if (qla2x00_marker(vha, vha->hw->base_qpair, 0, 0,
574 MK_SYNC_ALL) != QLA_SUCCESS)
575 return QLA_FUNCTION_FAILED;
576 }
577 vha->marker_needed = 0;
578
579 return QLA_SUCCESS;
580 }
581
582 static inline int
583 qla24xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt,
584 uint16_t tot_dsds)
585 {
586 struct dsd64 *cur_dsd = NULL, *next_dsd;
587 scsi_qla_host_t *vha;
588 struct qla_hw_data *ha;
589 struct scsi_cmnd *cmd;
590 struct scatterlist *cur_seg;
591 uint8_t avail_dsds;
592 uint8_t first_iocb = 1;
593 uint32_t dsd_list_len;
594 struct dsd_dma *dsd_ptr;
595 struct ct6_dsd *ctx;
596 struct qla_qpair *qpair = sp->qpair;
597
598 cmd = GET_CMD_SP(sp);
599
600 /* Update entry type to indicate Command Type 3 IOCB */
601 put_unaligned_le32(COMMAND_TYPE_6, &cmd_pkt->entry_type);
602
603 /* No data transfer */
604 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
605 cmd_pkt->byte_count = cpu_to_le32(0);
606 return 0;
607 }
608
609 vha = sp->vha;
610 ha = vha->hw;
611
612 /* Set transfer direction */
613 if (cmd->sc_data_direction == DMA_TO_DEVICE) {
614 cmd_pkt->control_flags = cpu_to_le16(CF_WRITE_DATA);
615 qpair->counters.output_bytes += scsi_bufflen(cmd);
616 qpair->counters.output_requests++;
617 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
618 cmd_pkt->control_flags = cpu_to_le16(CF_READ_DATA);
619 qpair->counters.input_bytes += scsi_bufflen(cmd);
620 qpair->counters.input_requests++;
621 }
622
623 cur_seg = scsi_sglist(cmd);
624 ctx = sp->u.scmd.ct6_ctx;
625
626 while (tot_dsds) {
627 avail_dsds = (tot_dsds > QLA_DSDS_PER_IOCB) ?
628 QLA_DSDS_PER_IOCB : tot_dsds;
629 tot_dsds -= avail_dsds;
630 dsd_list_len = (avail_dsds + 1) * QLA_DSD_SIZE;
631
632 dsd_ptr = list_first_entry(&ha->gbl_dsd_list,
633 struct dsd_dma, list);
634 next_dsd = dsd_ptr->dsd_addr;
635 list_del(&dsd_ptr->list);
636 ha->gbl_dsd_avail--;
637 list_add_tail(&dsd_ptr->list, &ctx->dsd_list);
638 ctx->dsd_use_cnt++;
639 ha->gbl_dsd_inuse++;
640
641 if (first_iocb) {
642 first_iocb = 0;
643 put_unaligned_le64(dsd_ptr->dsd_list_dma,
644 &cmd_pkt->fcp_dsd.address);
645 cmd_pkt->fcp_dsd.length = cpu_to_le32(dsd_list_len);
646 } else {
647 put_unaligned_le64(dsd_ptr->dsd_list_dma,
648 &cur_dsd->address);
649 cur_dsd->length = cpu_to_le32(dsd_list_len);
650 cur_dsd++;
651 }
652 cur_dsd = next_dsd;
653 while (avail_dsds) {
654 append_dsd64(&cur_dsd, cur_seg);
655 cur_seg = sg_next(cur_seg);
656 avail_dsds--;
657 }
658 }
659
660 /* Null termination */
661 cur_dsd->address = 0;
662 cur_dsd->length = 0;
663 cur_dsd++;
664 cmd_pkt->control_flags |= cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE);
665 return 0;
666 }
667
668 /*
669 * qla24xx_calc_dsd_lists() - Determine number of DSD list required
670 * for Command Type 6.
671 *
672 * @dsds: number of data segment descriptors needed
673 *
674 * Returns the number of dsd list needed to store @dsds.
675 */
676 static inline uint16_t
677 qla24xx_calc_dsd_lists(uint16_t dsds)
678 {
679 uint16_t dsd_lists = 0;
680
681 dsd_lists = (dsds/QLA_DSDS_PER_IOCB);
682 if (dsds % QLA_DSDS_PER_IOCB)
683 dsd_lists++;
684 return dsd_lists;
685 }
686
687
688 /**
689 * qla24xx_build_scsi_iocbs() - Build IOCB command utilizing Command Type 7
690 * IOCB types.
691 *
692 * @sp: SRB command to process
693 * @cmd_pkt: Command type 3 IOCB
694 * @tot_dsds: Total number of segments to transfer
695 * @req: pointer to request queue
696 */
697 inline void
698 qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt,
699 uint16_t tot_dsds, struct req_que *req)
700 {
701 uint16_t avail_dsds;
702 struct dsd64 *cur_dsd;
703 scsi_qla_host_t *vha;
704 struct scsi_cmnd *cmd;
705 struct scatterlist *sg;
706 int i;
707 struct qla_qpair *qpair = sp->qpair;
708
709 cmd = GET_CMD_SP(sp);
710
711 /* Update entry type to indicate Command Type 3 IOCB */
712 put_unaligned_le32(COMMAND_TYPE_7, &cmd_pkt->entry_type);
713
714 /* No data transfer */
715 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
716 cmd_pkt->byte_count = cpu_to_le32(0);
717 return;
718 }
719
720 vha = sp->vha;
721
722 /* Set transfer direction */
723 if (cmd->sc_data_direction == DMA_TO_DEVICE) {
724 cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_WRITE_DATA);
725 qpair->counters.output_bytes += scsi_bufflen(cmd);
726 qpair->counters.output_requests++;
727 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
728 cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_READ_DATA);
729 qpair->counters.input_bytes += scsi_bufflen(cmd);
730 qpair->counters.input_requests++;
731 }
732
733 /* One DSD is available in the Command Type 3 IOCB */
734 avail_dsds = 1;
735 cur_dsd = &cmd_pkt->dsd;
736
737 /* Load data segments */
738
739 scsi_for_each_sg(cmd, sg, tot_dsds, i) {
740 cont_a64_entry_t *cont_pkt;
741
742 /* Allocate additional continuation packets? */
743 if (avail_dsds == 0) {
744 /*
745 * Five DSDs are available in the Continuation
746 * Type 1 IOCB.
747 */
748 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, req);
749 cur_dsd = cont_pkt->dsd;
750 avail_dsds = ARRAY_SIZE(cont_pkt->dsd);
751 }
752
753 append_dsd64(&cur_dsd, sg);
754 avail_dsds--;
755 }
756 }
757
758 struct fw_dif_context {
759 __le32 ref_tag;
760 __le16 app_tag;
761 uint8_t ref_tag_mask[4]; /* Validation/Replacement Mask*/
762 uint8_t app_tag_mask[2]; /* Validation/Replacement Mask*/
763 };
764
765 /*
766 * qla24xx_set_t10dif_tags_from_cmd - Extract Ref and App tags from SCSI command
767 *
768 */
769 static inline void
770 qla24xx_set_t10dif_tags(srb_t *sp, struct fw_dif_context *pkt,
771 unsigned int protcnt)
772 {
773 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
774
775 switch (scsi_get_prot_type(cmd)) {
776 case SCSI_PROT_DIF_TYPE0:
777 /*
778 * No check for ql2xenablehba_err_chk, as it would be an
779 * I/O error if hba tag generation is not done.
780 */
781 pkt->ref_tag = cpu_to_le32((uint32_t)
782 (0xffffffff & scsi_get_lba(cmd)));
783
784 if (!qla2x00_hba_err_chk_enabled(sp))
785 break;
786
787 pkt->ref_tag_mask[0] = 0xff;
788 pkt->ref_tag_mask[1] = 0xff;
789 pkt->ref_tag_mask[2] = 0xff;
790 pkt->ref_tag_mask[3] = 0xff;
791 break;
792
793 /*
794 * For TYPE 2 protection: 16 bit GUARD + 32 bit REF tag has to
795 * match LBA in CDB + N
796 */
797 case SCSI_PROT_DIF_TYPE2:
798 pkt->app_tag = cpu_to_le16(0);
799 pkt->app_tag_mask[0] = 0x0;
800 pkt->app_tag_mask[1] = 0x0;
801
802 pkt->ref_tag = cpu_to_le32((uint32_t)
803 (0xffffffff & scsi_get_lba(cmd)));
804
805 if (!qla2x00_hba_err_chk_enabled(sp))
806 break;
807
808 /* enable ALL bytes of the ref tag */
809 pkt->ref_tag_mask[0] = 0xff;
810 pkt->ref_tag_mask[1] = 0xff;
811 pkt->ref_tag_mask[2] = 0xff;
812 pkt->ref_tag_mask[3] = 0xff;
813 break;
814
815 /* For Type 3 protection: 16 bit GUARD only */
816 case SCSI_PROT_DIF_TYPE3:
817 pkt->ref_tag_mask[0] = pkt->ref_tag_mask[1] =
818 pkt->ref_tag_mask[2] = pkt->ref_tag_mask[3] =
819 0x00;
820 break;
821
822 /*
823 * For TYpe 1 protection: 16 bit GUARD tag, 32 bit REF tag, and
824 * 16 bit app tag.
825 */
826 case SCSI_PROT_DIF_TYPE1:
827 pkt->ref_tag = cpu_to_le32((uint32_t)
828 (0xffffffff & scsi_get_lba(cmd)));
829 pkt->app_tag = cpu_to_le16(0);
830 pkt->app_tag_mask[0] = 0x0;
831 pkt->app_tag_mask[1] = 0x0;
832
833 if (!qla2x00_hba_err_chk_enabled(sp))
834 break;
835
836 /* enable ALL bytes of the ref tag */
837 pkt->ref_tag_mask[0] = 0xff;
838 pkt->ref_tag_mask[1] = 0xff;
839 pkt->ref_tag_mask[2] = 0xff;
840 pkt->ref_tag_mask[3] = 0xff;
841 break;
842 }
843 }
844
845 int
846 qla24xx_get_one_block_sg(uint32_t blk_sz, struct qla2_sgx *sgx,
847 uint32_t *partial)
848 {
849 struct scatterlist *sg;
850 uint32_t cumulative_partial, sg_len;
851 dma_addr_t sg_dma_addr;
852
853 if (sgx->num_bytes == sgx->tot_bytes)
854 return 0;
855
856 sg = sgx->cur_sg;
857 cumulative_partial = sgx->tot_partial;
858
859 sg_dma_addr = sg_dma_address(sg);
860 sg_len = sg_dma_len(sg);
861
862 sgx->dma_addr = sg_dma_addr + sgx->bytes_consumed;
863
864 if ((cumulative_partial + (sg_len - sgx->bytes_consumed)) >= blk_sz) {
865 sgx->dma_len = (blk_sz - cumulative_partial);
866 sgx->tot_partial = 0;
867 sgx->num_bytes += blk_sz;
868 *partial = 0;
869 } else {
870 sgx->dma_len = sg_len - sgx->bytes_consumed;
871 sgx->tot_partial += sgx->dma_len;
872 *partial = 1;
873 }
874
875 sgx->bytes_consumed += sgx->dma_len;
876
877 if (sg_len == sgx->bytes_consumed) {
878 sg = sg_next(sg);
879 sgx->num_sg++;
880 sgx->cur_sg = sg;
881 sgx->bytes_consumed = 0;
882 }
883
884 return 1;
885 }
886
887 int
888 qla24xx_walk_and_build_sglist_no_difb(struct qla_hw_data *ha, srb_t *sp,
889 struct dsd64 *dsd, uint16_t tot_dsds, struct qla_tc_param *tc)
890 {
891 void *next_dsd;
892 uint8_t avail_dsds = 0;
893 uint32_t dsd_list_len;
894 struct dsd_dma *dsd_ptr;
895 struct scatterlist *sg_prot;
896 struct dsd64 *cur_dsd = dsd;
897 uint16_t used_dsds = tot_dsds;
898 uint32_t prot_int; /* protection interval */
899 uint32_t partial;
900 struct qla2_sgx sgx;
901 dma_addr_t sle_dma;
902 uint32_t sle_dma_len, tot_prot_dma_len = 0;
903 struct scsi_cmnd *cmd;
904
905 memset(&sgx, 0, sizeof(struct qla2_sgx));
906 if (sp) {
907 cmd = GET_CMD_SP(sp);
908 prot_int = cmd->device->sector_size;
909
910 sgx.tot_bytes = scsi_bufflen(cmd);
911 sgx.cur_sg = scsi_sglist(cmd);
912 sgx.sp = sp;
913
914 sg_prot = scsi_prot_sglist(cmd);
915 } else if (tc) {
916 prot_int = tc->blk_sz;
917 sgx.tot_bytes = tc->bufflen;
918 sgx.cur_sg = tc->sg;
919 sg_prot = tc->prot_sg;
920 } else {
921 BUG();
922 return 1;
923 }
924
925 while (qla24xx_get_one_block_sg(prot_int, &sgx, &partial)) {
926
927 sle_dma = sgx.dma_addr;
928 sle_dma_len = sgx.dma_len;
929 alloc_and_fill:
930 /* Allocate additional continuation packets? */
931 if (avail_dsds == 0) {
932 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ?
933 QLA_DSDS_PER_IOCB : used_dsds;
934 dsd_list_len = (avail_dsds + 1) * 12;
935 used_dsds -= avail_dsds;
936
937 /* allocate tracking DS */
938 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
939 if (!dsd_ptr)
940 return 1;
941
942 /* allocate new list */
943 dsd_ptr->dsd_addr = next_dsd =
944 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC,
945 &dsd_ptr->dsd_list_dma);
946
947 if (!next_dsd) {
948 /*
949 * Need to cleanup only this dsd_ptr, rest
950 * will be done by sp_free_dma()
951 */
952 kfree(dsd_ptr);
953 return 1;
954 }
955
956 if (sp) {
957 list_add_tail(&dsd_ptr->list,
958 &sp->u.scmd.crc_ctx->dsd_list);
959
960 sp->flags |= SRB_CRC_CTX_DSD_VALID;
961 } else {
962 list_add_tail(&dsd_ptr->list,
963 &(tc->ctx->dsd_list));
964 *tc->ctx_dsd_alloced = 1;
965 }
966
967
968 /* add new list to cmd iocb or last list */
969 put_unaligned_le64(dsd_ptr->dsd_list_dma,
970 &cur_dsd->address);
971 cur_dsd->length = cpu_to_le32(dsd_list_len);
972 cur_dsd = next_dsd;
973 }
974 put_unaligned_le64(sle_dma, &cur_dsd->address);
975 cur_dsd->length = cpu_to_le32(sle_dma_len);
976 cur_dsd++;
977 avail_dsds--;
978
979 if (partial == 0) {
980 /* Got a full protection interval */
981 sle_dma = sg_dma_address(sg_prot) + tot_prot_dma_len;
982 sle_dma_len = 8;
983
984 tot_prot_dma_len += sle_dma_len;
985 if (tot_prot_dma_len == sg_dma_len(sg_prot)) {
986 tot_prot_dma_len = 0;
987 sg_prot = sg_next(sg_prot);
988 }
989
990 partial = 1; /* So as to not re-enter this block */
991 goto alloc_and_fill;
992 }
993 }
994 /* Null termination */
995 cur_dsd->address = 0;
996 cur_dsd->length = 0;
997 cur_dsd++;
998 return 0;
999 }
1000
1001 int
1002 qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp,
1003 struct dsd64 *dsd, uint16_t tot_dsds, struct qla_tc_param *tc)
1004 {
1005 void *next_dsd;
1006 uint8_t avail_dsds = 0;
1007 uint32_t dsd_list_len;
1008 struct dsd_dma *dsd_ptr;
1009 struct scatterlist *sg, *sgl;
1010 struct dsd64 *cur_dsd = dsd;
1011 int i;
1012 uint16_t used_dsds = tot_dsds;
1013 struct scsi_cmnd *cmd;
1014
1015 if (sp) {
1016 cmd = GET_CMD_SP(sp);
1017 sgl = scsi_sglist(cmd);
1018 } else if (tc) {
1019 sgl = tc->sg;
1020 } else {
1021 BUG();
1022 return 1;
1023 }
1024
1025
1026 for_each_sg(sgl, sg, tot_dsds, i) {
1027 /* Allocate additional continuation packets? */
1028 if (avail_dsds == 0) {
1029 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ?
1030 QLA_DSDS_PER_IOCB : used_dsds;
1031 dsd_list_len = (avail_dsds + 1) * 12;
1032 used_dsds -= avail_dsds;
1033
1034 /* allocate tracking DS */
1035 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
1036 if (!dsd_ptr)
1037 return 1;
1038
1039 /* allocate new list */
1040 dsd_ptr->dsd_addr = next_dsd =
1041 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC,
1042 &dsd_ptr->dsd_list_dma);
1043
1044 if (!next_dsd) {
1045 /*
1046 * Need to cleanup only this dsd_ptr, rest
1047 * will be done by sp_free_dma()
1048 */
1049 kfree(dsd_ptr);
1050 return 1;
1051 }
1052
1053 if (sp) {
1054 list_add_tail(&dsd_ptr->list,
1055 &sp->u.scmd.crc_ctx->dsd_list);
1056
1057 sp->flags |= SRB_CRC_CTX_DSD_VALID;
1058 } else {
1059 list_add_tail(&dsd_ptr->list,
1060 &(tc->ctx->dsd_list));
1061 *tc->ctx_dsd_alloced = 1;
1062 }
1063
1064 /* add new list to cmd iocb or last list */
1065 put_unaligned_le64(dsd_ptr->dsd_list_dma,
1066 &cur_dsd->address);
1067 cur_dsd->length = cpu_to_le32(dsd_list_len);
1068 cur_dsd = next_dsd;
1069 }
1070 append_dsd64(&cur_dsd, sg);
1071 avail_dsds--;
1072
1073 }
1074 /* Null termination */
1075 cur_dsd->address = 0;
1076 cur_dsd->length = 0;
1077 cur_dsd++;
1078 return 0;
1079 }
1080
1081 int
1082 qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *ha, srb_t *sp,
1083 struct dsd64 *cur_dsd, uint16_t tot_dsds, struct qla_tgt_cmd *tc)
1084 {
1085 struct dsd_dma *dsd_ptr = NULL, *dif_dsd, *nxt_dsd;
1086 struct scatterlist *sg, *sgl;
1087 struct crc_context *difctx = NULL;
1088 struct scsi_qla_host *vha;
1089 uint dsd_list_len;
1090 uint avail_dsds = 0;
1091 uint used_dsds = tot_dsds;
1092 bool dif_local_dma_alloc = false;
1093 bool direction_to_device = false;
1094 int i;
1095
1096 if (sp) {
1097 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1098
1099 sgl = scsi_prot_sglist(cmd);
1100 vha = sp->vha;
1101 difctx = sp->u.scmd.crc_ctx;
1102 direction_to_device = cmd->sc_data_direction == DMA_TO_DEVICE;
1103 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe021,
1104 "%s: scsi_cmnd: %p, crc_ctx: %p, sp: %p\n",
1105 __func__, cmd, difctx, sp);
1106 } else if (tc) {
1107 vha = tc->vha;
1108 sgl = tc->prot_sg;
1109 difctx = tc->ctx;
1110 direction_to_device = tc->dma_data_direction == DMA_TO_DEVICE;
1111 } else {
1112 BUG();
1113 return 1;
1114 }
1115
1116 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe021,
1117 "%s: enter (write=%u)\n", __func__, direction_to_device);
1118
1119 /* if initiator doing write or target doing read */
1120 if (direction_to_device) {
1121 for_each_sg(sgl, sg, tot_dsds, i) {
1122 u64 sle_phys = sg_phys(sg);
1123
1124 /* If SGE addr + len flips bits in upper 32-bits */
1125 if (MSD(sle_phys + sg->length) ^ MSD(sle_phys)) {
1126 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe022,
1127 "%s: page boundary crossing (phys=%llx len=%x)\n",
1128 __func__, sle_phys, sg->length);
1129
1130 if (difctx) {
1131 ha->dif_bundle_crossed_pages++;
1132 dif_local_dma_alloc = true;
1133 } else {
1134 ql_dbg(ql_dbg_tgt + ql_dbg_verbose,
1135 vha, 0xe022,
1136 "%s: difctx pointer is NULL\n",
1137 __func__);
1138 }
1139 break;
1140 }
1141 }
1142 ha->dif_bundle_writes++;
1143 } else {
1144 ha->dif_bundle_reads++;
1145 }
1146
1147 if (ql2xdifbundlinginternalbuffers)
1148 dif_local_dma_alloc = direction_to_device;
1149
1150 if (dif_local_dma_alloc) {
1151 u32 track_difbundl_buf = 0;
1152 u32 ldma_sg_len = 0;
1153 u8 ldma_needed = 1;
1154
1155 difctx->no_dif_bundl = 0;
1156 difctx->dif_bundl_len = 0;
1157
1158 /* Track DSD buffers */
1159 INIT_LIST_HEAD(&difctx->ldif_dsd_list);
1160 /* Track local DMA buffers */
1161 INIT_LIST_HEAD(&difctx->ldif_dma_hndl_list);
1162
1163 for_each_sg(sgl, sg, tot_dsds, i) {
1164 u32 sglen = sg_dma_len(sg);
1165
1166 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe023,
1167 "%s: sg[%x] (phys=%llx sglen=%x) ldma_sg_len: %x dif_bundl_len: %x ldma_needed: %x\n",
1168 __func__, i, (u64)sg_phys(sg), sglen, ldma_sg_len,
1169 difctx->dif_bundl_len, ldma_needed);
1170
1171 while (sglen) {
1172 u32 xfrlen = 0;
1173
1174 if (ldma_needed) {
1175 /*
1176 * Allocate list item to store
1177 * the DMA buffers
1178 */
1179 dsd_ptr = kzalloc(sizeof(*dsd_ptr),
1180 GFP_ATOMIC);
1181 if (!dsd_ptr) {
1182 ql_dbg(ql_dbg_tgt, vha, 0xe024,
1183 "%s: failed alloc dsd_ptr\n",
1184 __func__);
1185 return 1;
1186 }
1187 ha->dif_bundle_kallocs++;
1188
1189 /* allocate dma buffer */
1190 dsd_ptr->dsd_addr = dma_pool_alloc
1191 (ha->dif_bundl_pool, GFP_ATOMIC,
1192 &dsd_ptr->dsd_list_dma);
1193 if (!dsd_ptr->dsd_addr) {
1194 ql_dbg(ql_dbg_tgt, vha, 0xe024,
1195 "%s: failed alloc ->dsd_ptr\n",
1196 __func__);
1197 /*
1198 * need to cleanup only this
1199 * dsd_ptr rest will be done
1200 * by sp_free_dma()
1201 */
1202 kfree(dsd_ptr);
1203 ha->dif_bundle_kallocs--;
1204 return 1;
1205 }
1206 ha->dif_bundle_dma_allocs++;
1207 ldma_needed = 0;
1208 difctx->no_dif_bundl++;
1209 list_add_tail(&dsd_ptr->list,
1210 &difctx->ldif_dma_hndl_list);
1211 }
1212
1213 /* xfrlen is min of dma pool size and sglen */
1214 xfrlen = (sglen >
1215 (DIF_BUNDLING_DMA_POOL_SIZE - ldma_sg_len)) ?
1216 DIF_BUNDLING_DMA_POOL_SIZE - ldma_sg_len :
1217 sglen;
1218
1219 /* replace with local allocated dma buffer */
1220 sg_pcopy_to_buffer(sgl, sg_nents(sgl),
1221 dsd_ptr->dsd_addr + ldma_sg_len, xfrlen,
1222 difctx->dif_bundl_len);
1223 difctx->dif_bundl_len += xfrlen;
1224 sglen -= xfrlen;
1225 ldma_sg_len += xfrlen;
1226 if (ldma_sg_len == DIF_BUNDLING_DMA_POOL_SIZE ||
1227 sg_is_last(sg)) {
1228 ldma_needed = 1;
1229 ldma_sg_len = 0;
1230 }
1231 }
1232 }
1233
1234 track_difbundl_buf = used_dsds = difctx->no_dif_bundl;
1235 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe025,
1236 "dif_bundl_len=%x, no_dif_bundl=%x track_difbundl_buf: %x\n",
1237 difctx->dif_bundl_len, difctx->no_dif_bundl,
1238 track_difbundl_buf);
1239
1240 if (sp)
1241 sp->flags |= SRB_DIF_BUNDL_DMA_VALID;
1242 else
1243 tc->prot_flags = DIF_BUNDL_DMA_VALID;
1244
1245 list_for_each_entry_safe(dif_dsd, nxt_dsd,
1246 &difctx->ldif_dma_hndl_list, list) {
1247 u32 sglen = (difctx->dif_bundl_len >
1248 DIF_BUNDLING_DMA_POOL_SIZE) ?
1249 DIF_BUNDLING_DMA_POOL_SIZE : difctx->dif_bundl_len;
1250
1251 BUG_ON(track_difbundl_buf == 0);
1252
1253 /* Allocate additional continuation packets? */
1254 if (avail_dsds == 0) {
1255 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha,
1256 0xe024,
1257 "%s: adding continuation iocb's\n",
1258 __func__);
1259 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ?
1260 QLA_DSDS_PER_IOCB : used_dsds;
1261 dsd_list_len = (avail_dsds + 1) * 12;
1262 used_dsds -= avail_dsds;
1263
1264 /* allocate tracking DS */
1265 dsd_ptr = kzalloc(sizeof(*dsd_ptr), GFP_ATOMIC);
1266 if (!dsd_ptr) {
1267 ql_dbg(ql_dbg_tgt, vha, 0xe026,
1268 "%s: failed alloc dsd_ptr\n",
1269 __func__);
1270 return 1;
1271 }
1272 ha->dif_bundle_kallocs++;
1273
1274 difctx->no_ldif_dsd++;
1275 /* allocate new list */
1276 dsd_ptr->dsd_addr =
1277 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC,
1278 &dsd_ptr->dsd_list_dma);
1279 if (!dsd_ptr->dsd_addr) {
1280 ql_dbg(ql_dbg_tgt, vha, 0xe026,
1281 "%s: failed alloc ->dsd_addr\n",
1282 __func__);
1283 /*
1284 * need to cleanup only this dsd_ptr
1285 * rest will be done by sp_free_dma()
1286 */
1287 kfree(dsd_ptr);
1288 ha->dif_bundle_kallocs--;
1289 return 1;
1290 }
1291 ha->dif_bundle_dma_allocs++;
1292
1293 if (sp) {
1294 list_add_tail(&dsd_ptr->list,
1295 &difctx->ldif_dsd_list);
1296 sp->flags |= SRB_CRC_CTX_DSD_VALID;
1297 } else {
1298 list_add_tail(&dsd_ptr->list,
1299 &difctx->ldif_dsd_list);
1300 tc->ctx_dsd_alloced = 1;
1301 }
1302
1303 /* add new list to cmd iocb or last list */
1304 put_unaligned_le64(dsd_ptr->dsd_list_dma,
1305 &cur_dsd->address);
1306 cur_dsd->length = cpu_to_le32(dsd_list_len);
1307 cur_dsd = dsd_ptr->dsd_addr;
1308 }
1309 put_unaligned_le64(dif_dsd->dsd_list_dma,
1310 &cur_dsd->address);
1311 cur_dsd->length = cpu_to_le32(sglen);
1312 cur_dsd++;
1313 avail_dsds--;
1314 difctx->dif_bundl_len -= sglen;
1315 track_difbundl_buf--;
1316 }
1317
1318 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe026,
1319 "%s: no_ldif_dsd:%x, no_dif_bundl:%x\n", __func__,
1320 difctx->no_ldif_dsd, difctx->no_dif_bundl);
1321 } else {
1322 for_each_sg(sgl, sg, tot_dsds, i) {
1323 /* Allocate additional continuation packets? */
1324 if (avail_dsds == 0) {
1325 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ?
1326 QLA_DSDS_PER_IOCB : used_dsds;
1327 dsd_list_len = (avail_dsds + 1) * 12;
1328 used_dsds -= avail_dsds;
1329
1330 /* allocate tracking DS */
1331 dsd_ptr = kzalloc(sizeof(*dsd_ptr), GFP_ATOMIC);
1332 if (!dsd_ptr) {
1333 ql_dbg(ql_dbg_tgt + ql_dbg_verbose,
1334 vha, 0xe027,
1335 "%s: failed alloc dsd_dma...\n",
1336 __func__);
1337 return 1;
1338 }
1339
1340 /* allocate new list */
1341 dsd_ptr->dsd_addr =
1342 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC,
1343 &dsd_ptr->dsd_list_dma);
1344 if (!dsd_ptr->dsd_addr) {
1345 /* need to cleanup only this dsd_ptr */
1346 /* rest will be done by sp_free_dma() */
1347 kfree(dsd_ptr);
1348 return 1;
1349 }
1350
1351 if (sp) {
1352 list_add_tail(&dsd_ptr->list,
1353 &difctx->dsd_list);
1354 sp->flags |= SRB_CRC_CTX_DSD_VALID;
1355 } else {
1356 list_add_tail(&dsd_ptr->list,
1357 &difctx->dsd_list);
1358 tc->ctx_dsd_alloced = 1;
1359 }
1360
1361 /* add new list to cmd iocb or last list */
1362 put_unaligned_le64(dsd_ptr->dsd_list_dma,
1363 &cur_dsd->address);
1364 cur_dsd->length = cpu_to_le32(dsd_list_len);
1365 cur_dsd = dsd_ptr->dsd_addr;
1366 }
1367 append_dsd64(&cur_dsd, sg);
1368 avail_dsds--;
1369 }
1370 }
1371 /* Null termination */
1372 cur_dsd->address = 0;
1373 cur_dsd->length = 0;
1374 cur_dsd++;
1375 return 0;
1376 }
1377
1378 /**
1379 * qla24xx_build_scsi_crc_2_iocbs() - Build IOCB command utilizing Command
1380 * Type 6 IOCB types.
1381 *
1382 * @sp: SRB command to process
1383 * @cmd_pkt: Command type 3 IOCB
1384 * @tot_dsds: Total number of segments to transfer
1385 * @tot_prot_dsds: Total number of segments with protection information
1386 * @fw_prot_opts: Protection options to be passed to firmware
1387 */
1388 static inline int
1389 qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt,
1390 uint16_t tot_dsds, uint16_t tot_prot_dsds, uint16_t fw_prot_opts)
1391 {
1392 struct dsd64 *cur_dsd;
1393 __be32 *fcp_dl;
1394 scsi_qla_host_t *vha;
1395 struct scsi_cmnd *cmd;
1396 uint32_t total_bytes = 0;
1397 uint32_t data_bytes;
1398 uint32_t dif_bytes;
1399 uint8_t bundling = 1;
1400 uint16_t blk_size;
1401 struct crc_context *crc_ctx_pkt = NULL;
1402 struct qla_hw_data *ha;
1403 uint8_t additional_fcpcdb_len;
1404 uint16_t fcp_cmnd_len;
1405 struct fcp_cmnd *fcp_cmnd;
1406 dma_addr_t crc_ctx_dma;
1407
1408 cmd = GET_CMD_SP(sp);
1409
1410 /* Update entry type to indicate Command Type CRC_2 IOCB */
1411 put_unaligned_le32(COMMAND_TYPE_CRC_2, &cmd_pkt->entry_type);
1412
1413 vha = sp->vha;
1414 ha = vha->hw;
1415
1416 /* No data transfer */
1417 data_bytes = scsi_bufflen(cmd);
1418 if (!data_bytes || cmd->sc_data_direction == DMA_NONE) {
1419 cmd_pkt->byte_count = cpu_to_le32(0);
1420 return QLA_SUCCESS;
1421 }
1422
1423 cmd_pkt->vp_index = sp->vha->vp_idx;
1424
1425 /* Set transfer direction */
1426 if (cmd->sc_data_direction == DMA_TO_DEVICE) {
1427 cmd_pkt->control_flags =
1428 cpu_to_le16(CF_WRITE_DATA);
1429 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
1430 cmd_pkt->control_flags =
1431 cpu_to_le16(CF_READ_DATA);
1432 }
1433
1434 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
1435 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP) ||
1436 (scsi_get_prot_op(cmd) == SCSI_PROT_READ_STRIP) ||
1437 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_INSERT))
1438 bundling = 0;
1439
1440 /* Allocate CRC context from global pool */
1441 crc_ctx_pkt = sp->u.scmd.crc_ctx =
1442 dma_pool_zalloc(ha->dl_dma_pool, GFP_ATOMIC, &crc_ctx_dma);
1443
1444 if (!crc_ctx_pkt)
1445 goto crc_queuing_error;
1446
1447 crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma;
1448
1449 sp->flags |= SRB_CRC_CTX_DMA_VALID;
1450
1451 /* Set handle */
1452 crc_ctx_pkt->handle = cmd_pkt->handle;
1453
1454 INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list);
1455
1456 qla24xx_set_t10dif_tags(sp, (struct fw_dif_context *)
1457 &crc_ctx_pkt->ref_tag, tot_prot_dsds);
1458
1459 put_unaligned_le64(crc_ctx_dma, &cmd_pkt->crc_context_address);
1460 cmd_pkt->crc_context_len = cpu_to_le16(CRC_CONTEXT_LEN_FW);
1461
1462 /* Determine SCSI command length -- align to 4 byte boundary */
1463 if (cmd->cmd_len > 16) {
1464 additional_fcpcdb_len = cmd->cmd_len - 16;
1465 if ((cmd->cmd_len % 4) != 0) {
1466 /* SCSI cmd > 16 bytes must be multiple of 4 */
1467 goto crc_queuing_error;
1468 }
1469 fcp_cmnd_len = 12 + cmd->cmd_len + 4;
1470 } else {
1471 additional_fcpcdb_len = 0;
1472 fcp_cmnd_len = 12 + 16 + 4;
1473 }
1474
1475 fcp_cmnd = &crc_ctx_pkt->fcp_cmnd;
1476
1477 fcp_cmnd->additional_cdb_len = additional_fcpcdb_len;
1478 if (cmd->sc_data_direction == DMA_TO_DEVICE)
1479 fcp_cmnd->additional_cdb_len |= 1;
1480 else if (cmd->sc_data_direction == DMA_FROM_DEVICE)
1481 fcp_cmnd->additional_cdb_len |= 2;
1482
1483 int_to_scsilun(cmd->device->lun, &fcp_cmnd->lun);
1484 memcpy(fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len);
1485 cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(fcp_cmnd_len);
1486 put_unaligned_le64(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF,
1487 &cmd_pkt->fcp_cmnd_dseg_address);
1488 fcp_cmnd->task_management = 0;
1489 fcp_cmnd->task_attribute = TSK_SIMPLE;
1490
1491 cmd_pkt->fcp_rsp_dseg_len = 0; /* Let response come in status iocb */
1492
1493 /* Compute dif len and adjust data len to incude protection */
1494 dif_bytes = 0;
1495 blk_size = cmd->device->sector_size;
1496 dif_bytes = (data_bytes / blk_size) * 8;
1497
1498 switch (scsi_get_prot_op(GET_CMD_SP(sp))) {
1499 case SCSI_PROT_READ_INSERT:
1500 case SCSI_PROT_WRITE_STRIP:
1501 total_bytes = data_bytes;
1502 data_bytes += dif_bytes;
1503 break;
1504
1505 case SCSI_PROT_READ_STRIP:
1506 case SCSI_PROT_WRITE_INSERT:
1507 case SCSI_PROT_READ_PASS:
1508 case SCSI_PROT_WRITE_PASS:
1509 total_bytes = data_bytes + dif_bytes;
1510 break;
1511 default:
1512 BUG();
1513 }
1514
1515 if (!qla2x00_hba_err_chk_enabled(sp))
1516 fw_prot_opts |= 0x10; /* Disable Guard tag checking */
1517 /* HBA error checking enabled */
1518 else if (IS_PI_UNINIT_CAPABLE(ha)) {
1519 if ((scsi_get_prot_type(GET_CMD_SP(sp)) == SCSI_PROT_DIF_TYPE1)
1520 || (scsi_get_prot_type(GET_CMD_SP(sp)) ==
1521 SCSI_PROT_DIF_TYPE2))
1522 fw_prot_opts |= BIT_10;
1523 else if (scsi_get_prot_type(GET_CMD_SP(sp)) ==
1524 SCSI_PROT_DIF_TYPE3)
1525 fw_prot_opts |= BIT_11;
1526 }
1527
1528 if (!bundling) {
1529 cur_dsd = &crc_ctx_pkt->u.nobundling.data_dsd[0];
1530 } else {
1531 /*
1532 * Configure Bundling if we need to fetch interlaving
1533 * protection PCI accesses
1534 */
1535 fw_prot_opts |= PO_ENABLE_DIF_BUNDLING;
1536 crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes);
1537 crc_ctx_pkt->u.bundling.dseg_count = cpu_to_le16(tot_dsds -
1538 tot_prot_dsds);
1539 cur_dsd = &crc_ctx_pkt->u.bundling.data_dsd[0];
1540 }
1541
1542 /* Finish the common fields of CRC pkt */
1543 crc_ctx_pkt->blk_size = cpu_to_le16(blk_size);
1544 crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts);
1545 crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes);
1546 crc_ctx_pkt->guard_seed = cpu_to_le16(0);
1547 /* Fibre channel byte count */
1548 cmd_pkt->byte_count = cpu_to_le32(total_bytes);
1549 fcp_dl = (__be32 *)(crc_ctx_pkt->fcp_cmnd.cdb + 16 +
1550 additional_fcpcdb_len);
1551 *fcp_dl = htonl(total_bytes);
1552
1553 if (!data_bytes || cmd->sc_data_direction == DMA_NONE) {
1554 cmd_pkt->byte_count = cpu_to_le32(0);
1555 return QLA_SUCCESS;
1556 }
1557 /* Walks data segments */
1558
1559 cmd_pkt->control_flags |= cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE);
1560
1561 if (!bundling && tot_prot_dsds) {
1562 if (qla24xx_walk_and_build_sglist_no_difb(ha, sp,
1563 cur_dsd, tot_dsds, NULL))
1564 goto crc_queuing_error;
1565 } else if (qla24xx_walk_and_build_sglist(ha, sp, cur_dsd,
1566 (tot_dsds - tot_prot_dsds), NULL))
1567 goto crc_queuing_error;
1568
1569 if (bundling && tot_prot_dsds) {
1570 /* Walks dif segments */
1571 cmd_pkt->control_flags |= cpu_to_le16(CF_DIF_SEG_DESCR_ENABLE);
1572 cur_dsd = &crc_ctx_pkt->u.bundling.dif_dsd;
1573 if (qla24xx_walk_and_build_prot_sglist(ha, sp, cur_dsd,
1574 tot_prot_dsds, NULL))
1575 goto crc_queuing_error;
1576 }
1577 return QLA_SUCCESS;
1578
1579 crc_queuing_error:
1580 /* Cleanup will be performed by the caller */
1581
1582 return QLA_FUNCTION_FAILED;
1583 }
1584
1585 /**
1586 * qla24xx_start_scsi() - Send a SCSI command to the ISP
1587 * @sp: command to send to the ISP
1588 *
1589 * Returns non-zero if a failure occurred, else zero.
1590 */
1591 int
1592 qla24xx_start_scsi(srb_t *sp)
1593 {
1594 int nseg;
1595 unsigned long flags;
1596 uint32_t *clr_ptr;
1597 uint32_t handle;
1598 struct cmd_type_7 *cmd_pkt;
1599 uint16_t cnt;
1600 uint16_t req_cnt;
1601 uint16_t tot_dsds;
1602 struct req_que *req = NULL;
1603 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1604 struct scsi_qla_host *vha = sp->vha;
1605 struct qla_hw_data *ha = vha->hw;
1606
1607 /* Setup device pointers. */
1608 req = vha->req;
1609
1610 /* So we know we haven't pci_map'ed anything yet */
1611 tot_dsds = 0;
1612
1613 /* Send marker if required */
1614 if (vha->marker_needed != 0) {
1615 if (qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL) !=
1616 QLA_SUCCESS)
1617 return QLA_FUNCTION_FAILED;
1618 vha->marker_needed = 0;
1619 }
1620
1621 /* Acquire ring specific lock */
1622 spin_lock_irqsave(&ha->hardware_lock, flags);
1623
1624 handle = qla2xxx_get_next_handle(req);
1625 if (handle == 0)
1626 goto queuing_error;
1627
1628 /* Map the sg table so we have an accurate count of sg entries needed */
1629 if (scsi_sg_count(cmd)) {
1630 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
1631 scsi_sg_count(cmd), cmd->sc_data_direction);
1632 if (unlikely(!nseg))
1633 goto queuing_error;
1634 } else
1635 nseg = 0;
1636
1637 tot_dsds = nseg;
1638 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
1639
1640 sp->iores.res_type = RESOURCE_INI;
1641 sp->iores.iocb_cnt = req_cnt;
1642 if (qla_get_iocbs(sp->qpair, &sp->iores))
1643 goto queuing_error;
1644
1645 if (req->cnt < (req_cnt + 2)) {
1646 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
1647 rd_reg_dword_relaxed(req->req_q_out);
1648 if (req->ring_index < cnt)
1649 req->cnt = cnt - req->ring_index;
1650 else
1651 req->cnt = req->length -
1652 (req->ring_index - cnt);
1653 if (req->cnt < (req_cnt + 2))
1654 goto queuing_error;
1655 }
1656
1657 /* Build command packet. */
1658 req->current_outstanding_cmd = handle;
1659 req->outstanding_cmds[handle] = sp;
1660 sp->handle = handle;
1661 cmd->host_scribble = (unsigned char *)(unsigned long)handle;
1662 req->cnt -= req_cnt;
1663
1664 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr;
1665 cmd_pkt->handle = make_handle(req->id, handle);
1666
1667 /* Zero out remaining portion of packet. */
1668 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */
1669 clr_ptr = (uint32_t *)cmd_pkt + 2;
1670 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
1671 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
1672
1673 /* Set NPORT-ID and LUN number*/
1674 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
1675 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
1676 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
1677 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
1678 cmd_pkt->vp_index = sp->vha->vp_idx;
1679
1680 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
1681 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
1682
1683 cmd_pkt->task = TSK_SIMPLE;
1684
1685 /* Load SCSI command packet. */
1686 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len);
1687 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb));
1688
1689 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
1690
1691 /* Build IOCB segments */
1692 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req);
1693
1694 /* Set total data segment count. */
1695 cmd_pkt->entry_count = (uint8_t)req_cnt;
1696 wmb();
1697 /* Adjust ring index. */
1698 req->ring_index++;
1699 if (req->ring_index == req->length) {
1700 req->ring_index = 0;
1701 req->ring_ptr = req->ring;
1702 } else
1703 req->ring_ptr++;
1704
1705 sp->flags |= SRB_DMA_VALID;
1706
1707 /* Set chip new ring index. */
1708 wrt_reg_dword(req->req_q_in, req->ring_index);
1709
1710 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1711 return QLA_SUCCESS;
1712
1713 queuing_error:
1714 if (tot_dsds)
1715 scsi_dma_unmap(cmd);
1716
1717 qla_put_iocbs(sp->qpair, &sp->iores);
1718 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1719
1720 return QLA_FUNCTION_FAILED;
1721 }
1722
1723 /**
1724 * qla24xx_dif_start_scsi() - Send a SCSI command to the ISP
1725 * @sp: command to send to the ISP
1726 *
1727 * Returns non-zero if a failure occurred, else zero.
1728 */
1729 int
1730 qla24xx_dif_start_scsi(srb_t *sp)
1731 {
1732 int nseg;
1733 unsigned long flags;
1734 uint32_t *clr_ptr;
1735 uint32_t handle;
1736 uint16_t cnt;
1737 uint16_t req_cnt = 0;
1738 uint16_t tot_dsds;
1739 uint16_t tot_prot_dsds;
1740 uint16_t fw_prot_opts = 0;
1741 struct req_que *req = NULL;
1742 struct rsp_que *rsp = NULL;
1743 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1744 struct scsi_qla_host *vha = sp->vha;
1745 struct qla_hw_data *ha = vha->hw;
1746 struct cmd_type_crc_2 *cmd_pkt;
1747 uint32_t status = 0;
1748
1749 #define QDSS_GOT_Q_SPACE BIT_0
1750
1751 /* Only process protection or >16 cdb in this routine */
1752 if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) {
1753 if (cmd->cmd_len <= 16)
1754 return qla24xx_start_scsi(sp);
1755 }
1756
1757 /* Setup device pointers. */
1758 req = vha->req;
1759 rsp = req->rsp;
1760
1761 /* So we know we haven't pci_map'ed anything yet */
1762 tot_dsds = 0;
1763
1764 /* Send marker if required */
1765 if (vha->marker_needed != 0) {
1766 if (qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL) !=
1767 QLA_SUCCESS)
1768 return QLA_FUNCTION_FAILED;
1769 vha->marker_needed = 0;
1770 }
1771
1772 /* Acquire ring specific lock */
1773 spin_lock_irqsave(&ha->hardware_lock, flags);
1774
1775 handle = qla2xxx_get_next_handle(req);
1776 if (handle == 0)
1777 goto queuing_error;
1778
1779 /* Compute number of required data segments */
1780 /* Map the sg table so we have an accurate count of sg entries needed */
1781 if (scsi_sg_count(cmd)) {
1782 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
1783 scsi_sg_count(cmd), cmd->sc_data_direction);
1784 if (unlikely(!nseg))
1785 goto queuing_error;
1786 else
1787 sp->flags |= SRB_DMA_VALID;
1788
1789 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
1790 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) {
1791 struct qla2_sgx sgx;
1792 uint32_t partial;
1793
1794 memset(&sgx, 0, sizeof(struct qla2_sgx));
1795 sgx.tot_bytes = scsi_bufflen(cmd);
1796 sgx.cur_sg = scsi_sglist(cmd);
1797 sgx.sp = sp;
1798
1799 nseg = 0;
1800 while (qla24xx_get_one_block_sg(
1801 cmd->device->sector_size, &sgx, &partial))
1802 nseg++;
1803 }
1804 } else
1805 nseg = 0;
1806
1807 /* number of required data segments */
1808 tot_dsds = nseg;
1809
1810 /* Compute number of required protection segments */
1811 if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) {
1812 nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
1813 scsi_prot_sg_count(cmd), cmd->sc_data_direction);
1814 if (unlikely(!nseg))
1815 goto queuing_error;
1816 else
1817 sp->flags |= SRB_CRC_PROT_DMA_VALID;
1818
1819 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
1820 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) {
1821 nseg = scsi_bufflen(cmd) / cmd->device->sector_size;
1822 }
1823 } else {
1824 nseg = 0;
1825 }
1826
1827 req_cnt = 1;
1828 /* Total Data and protection sg segment(s) */
1829 tot_prot_dsds = nseg;
1830 tot_dsds += nseg;
1831
1832 sp->iores.res_type = RESOURCE_INI;
1833 sp->iores.iocb_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
1834 if (qla_get_iocbs(sp->qpair, &sp->iores))
1835 goto queuing_error;
1836
1837 if (req->cnt < (req_cnt + 2)) {
1838 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
1839 rd_reg_dword_relaxed(req->req_q_out);
1840 if (req->ring_index < cnt)
1841 req->cnt = cnt - req->ring_index;
1842 else
1843 req->cnt = req->length -
1844 (req->ring_index - cnt);
1845 if (req->cnt < (req_cnt + 2))
1846 goto queuing_error;
1847 }
1848
1849 status |= QDSS_GOT_Q_SPACE;
1850
1851 /* Build header part of command packet (excluding the OPCODE). */
1852 req->current_outstanding_cmd = handle;
1853 req->outstanding_cmds[handle] = sp;
1854 sp->handle = handle;
1855 cmd->host_scribble = (unsigned char *)(unsigned long)handle;
1856 req->cnt -= req_cnt;
1857
1858 /* Fill-in common area */
1859 cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr;
1860 cmd_pkt->handle = make_handle(req->id, handle);
1861
1862 clr_ptr = (uint32_t *)cmd_pkt + 2;
1863 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
1864
1865 /* Set NPORT-ID and LUN number*/
1866 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
1867 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
1868 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
1869 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
1870
1871 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
1872 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
1873
1874 /* Total Data and protection segment(s) */
1875 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
1876
1877 /* Build IOCB segments and adjust for data protection segments */
1878 if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *)
1879 req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) !=
1880 QLA_SUCCESS)
1881 goto queuing_error;
1882
1883 cmd_pkt->entry_count = (uint8_t)req_cnt;
1884 /* Specify response queue number where completion should happen */
1885 cmd_pkt->entry_status = (uint8_t) rsp->id;
1886 cmd_pkt->timeout = cpu_to_le16(0);
1887 wmb();
1888
1889 /* Adjust ring index. */
1890 req->ring_index++;
1891 if (req->ring_index == req->length) {
1892 req->ring_index = 0;
1893 req->ring_ptr = req->ring;
1894 } else
1895 req->ring_ptr++;
1896
1897 /* Set chip new ring index. */
1898 wrt_reg_dword(req->req_q_in, req->ring_index);
1899
1900 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1901
1902 return QLA_SUCCESS;
1903
1904 queuing_error:
1905 if (status & QDSS_GOT_Q_SPACE) {
1906 req->outstanding_cmds[handle] = NULL;
1907 req->cnt += req_cnt;
1908 }
1909 /* Cleanup will be performed by the caller (queuecommand) */
1910
1911 qla_put_iocbs(sp->qpair, &sp->iores);
1912 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1913 return QLA_FUNCTION_FAILED;
1914 }
1915
1916 /**
1917 * qla2xxx_start_scsi_mq() - Send a SCSI command to the ISP
1918 * @sp: command to send to the ISP
1919 *
1920 * Returns non-zero if a failure occurred, else zero.
1921 */
1922 static int
1923 qla2xxx_start_scsi_mq(srb_t *sp)
1924 {
1925 int nseg;
1926 unsigned long flags;
1927 uint32_t *clr_ptr;
1928 uint32_t handle;
1929 struct cmd_type_7 *cmd_pkt;
1930 uint16_t cnt;
1931 uint16_t req_cnt;
1932 uint16_t tot_dsds;
1933 struct req_que *req = NULL;
1934 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1935 struct scsi_qla_host *vha = sp->fcport->vha;
1936 struct qla_hw_data *ha = vha->hw;
1937 struct qla_qpair *qpair = sp->qpair;
1938
1939 /* Acquire qpair specific lock */
1940 spin_lock_irqsave(&qpair->qp_lock, flags);
1941
1942 /* Setup qpair pointers */
1943 req = qpair->req;
1944
1945 /* So we know we haven't pci_map'ed anything yet */
1946 tot_dsds = 0;
1947
1948 /* Send marker if required */
1949 if (vha->marker_needed != 0) {
1950 if (__qla2x00_marker(vha, qpair, 0, 0, MK_SYNC_ALL) !=
1951 QLA_SUCCESS) {
1952 spin_unlock_irqrestore(&qpair->qp_lock, flags);
1953 return QLA_FUNCTION_FAILED;
1954 }
1955 vha->marker_needed = 0;
1956 }
1957
1958 handle = qla2xxx_get_next_handle(req);
1959 if (handle == 0)
1960 goto queuing_error;
1961
1962 /* Map the sg table so we have an accurate count of sg entries needed */
1963 if (scsi_sg_count(cmd)) {
1964 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
1965 scsi_sg_count(cmd), cmd->sc_data_direction);
1966 if (unlikely(!nseg))
1967 goto queuing_error;
1968 } else
1969 nseg = 0;
1970
1971 tot_dsds = nseg;
1972 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
1973
1974 sp->iores.res_type = RESOURCE_INI;
1975 sp->iores.iocb_cnt = req_cnt;
1976 if (qla_get_iocbs(sp->qpair, &sp->iores))
1977 goto queuing_error;
1978
1979 if (req->cnt < (req_cnt + 2)) {
1980 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
1981 rd_reg_dword_relaxed(req->req_q_out);
1982 if (req->ring_index < cnt)
1983 req->cnt = cnt - req->ring_index;
1984 else
1985 req->cnt = req->length -
1986 (req->ring_index - cnt);
1987 if (req->cnt < (req_cnt + 2))
1988 goto queuing_error;
1989 }
1990
1991 /* Build command packet. */
1992 req->current_outstanding_cmd = handle;
1993 req->outstanding_cmds[handle] = sp;
1994 sp->handle = handle;
1995 cmd->host_scribble = (unsigned char *)(unsigned long)handle;
1996 req->cnt -= req_cnt;
1997
1998 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr;
1999 cmd_pkt->handle = make_handle(req->id, handle);
2000
2001 /* Zero out remaining portion of packet. */
2002 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */
2003 clr_ptr = (uint32_t *)cmd_pkt + 2;
2004 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
2005 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
2006
2007 /* Set NPORT-ID and LUN number*/
2008 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2009 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
2010 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
2011 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
2012 cmd_pkt->vp_index = sp->fcport->vha->vp_idx;
2013
2014 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
2015 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
2016
2017 cmd_pkt->task = TSK_SIMPLE;
2018
2019 /* Load SCSI command packet. */
2020 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len);
2021 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb));
2022
2023 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
2024
2025 /* Build IOCB segments */
2026 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req);
2027
2028 /* Set total data segment count. */
2029 cmd_pkt->entry_count = (uint8_t)req_cnt;
2030 wmb();
2031 /* Adjust ring index. */
2032 req->ring_index++;
2033 if (req->ring_index == req->length) {
2034 req->ring_index = 0;
2035 req->ring_ptr = req->ring;
2036 } else
2037 req->ring_ptr++;
2038
2039 sp->flags |= SRB_DMA_VALID;
2040
2041 /* Set chip new ring index. */
2042 wrt_reg_dword(req->req_q_in, req->ring_index);
2043
2044 spin_unlock_irqrestore(&qpair->qp_lock, flags);
2045 return QLA_SUCCESS;
2046
2047 queuing_error:
2048 if (tot_dsds)
2049 scsi_dma_unmap(cmd);
2050
2051 qla_put_iocbs(sp->qpair, &sp->iores);
2052 spin_unlock_irqrestore(&qpair->qp_lock, flags);
2053
2054 return QLA_FUNCTION_FAILED;
2055 }
2056
2057
2058 /**
2059 * qla2xxx_dif_start_scsi_mq() - Send a SCSI command to the ISP
2060 * @sp: command to send to the ISP
2061 *
2062 * Returns non-zero if a failure occurred, else zero.
2063 */
2064 int
2065 qla2xxx_dif_start_scsi_mq(srb_t *sp)
2066 {
2067 int nseg;
2068 unsigned long flags;
2069 uint32_t *clr_ptr;
2070 uint32_t handle;
2071 uint16_t cnt;
2072 uint16_t req_cnt = 0;
2073 uint16_t tot_dsds;
2074 uint16_t tot_prot_dsds;
2075 uint16_t fw_prot_opts = 0;
2076 struct req_que *req = NULL;
2077 struct rsp_que *rsp = NULL;
2078 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
2079 struct scsi_qla_host *vha = sp->fcport->vha;
2080 struct qla_hw_data *ha = vha->hw;
2081 struct cmd_type_crc_2 *cmd_pkt;
2082 uint32_t status = 0;
2083 struct qla_qpair *qpair = sp->qpair;
2084
2085 #define QDSS_GOT_Q_SPACE BIT_0
2086
2087 /* Check for host side state */
2088 if (!qpair->online) {
2089 cmd->result = DID_NO_CONNECT << 16;
2090 return QLA_INTERFACE_ERROR;
2091 }
2092
2093 if (!qpair->difdix_supported &&
2094 scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
2095 cmd->result = DID_NO_CONNECT << 16;
2096 return QLA_INTERFACE_ERROR;
2097 }
2098
2099 /* Only process protection or >16 cdb in this routine */
2100 if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) {
2101 if (cmd->cmd_len <= 16)
2102 return qla2xxx_start_scsi_mq(sp);
2103 }
2104
2105 spin_lock_irqsave(&qpair->qp_lock, flags);
2106
2107 /* Setup qpair pointers */
2108 rsp = qpair->rsp;
2109 req = qpair->req;
2110
2111 /* So we know we haven't pci_map'ed anything yet */
2112 tot_dsds = 0;
2113
2114 /* Send marker if required */
2115 if (vha->marker_needed != 0) {
2116 if (__qla2x00_marker(vha, qpair, 0, 0, MK_SYNC_ALL) !=
2117 QLA_SUCCESS) {
2118 spin_unlock_irqrestore(&qpair->qp_lock, flags);
2119 return QLA_FUNCTION_FAILED;
2120 }
2121 vha->marker_needed = 0;
2122 }
2123
2124 handle = qla2xxx_get_next_handle(req);
2125 if (handle == 0)
2126 goto queuing_error;
2127
2128 /* Compute number of required data segments */
2129 /* Map the sg table so we have an accurate count of sg entries needed */
2130 if (scsi_sg_count(cmd)) {
2131 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
2132 scsi_sg_count(cmd), cmd->sc_data_direction);
2133 if (unlikely(!nseg))
2134 goto queuing_error;
2135 else
2136 sp->flags |= SRB_DMA_VALID;
2137
2138 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
2139 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) {
2140 struct qla2_sgx sgx;
2141 uint32_t partial;
2142
2143 memset(&sgx, 0, sizeof(struct qla2_sgx));
2144 sgx.tot_bytes = scsi_bufflen(cmd);
2145 sgx.cur_sg = scsi_sglist(cmd);
2146 sgx.sp = sp;
2147
2148 nseg = 0;
2149 while (qla24xx_get_one_block_sg(
2150 cmd->device->sector_size, &sgx, &partial))
2151 nseg++;
2152 }
2153 } else
2154 nseg = 0;
2155
2156 /* number of required data segments */
2157 tot_dsds = nseg;
2158
2159 /* Compute number of required protection segments */
2160 if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) {
2161 nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
2162 scsi_prot_sg_count(cmd), cmd->sc_data_direction);
2163 if (unlikely(!nseg))
2164 goto queuing_error;
2165 else
2166 sp->flags |= SRB_CRC_PROT_DMA_VALID;
2167
2168 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
2169 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) {
2170 nseg = scsi_bufflen(cmd) / cmd->device->sector_size;
2171 }
2172 } else {
2173 nseg = 0;
2174 }
2175
2176 req_cnt = 1;
2177 /* Total Data and protection sg segment(s) */
2178 tot_prot_dsds = nseg;
2179 tot_dsds += nseg;
2180
2181 sp->iores.res_type = RESOURCE_INI;
2182 sp->iores.iocb_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
2183 if (qla_get_iocbs(sp->qpair, &sp->iores))
2184 goto queuing_error;
2185
2186 if (req->cnt < (req_cnt + 2)) {
2187 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
2188 rd_reg_dword_relaxed(req->req_q_out);
2189 if (req->ring_index < cnt)
2190 req->cnt = cnt - req->ring_index;
2191 else
2192 req->cnt = req->length -
2193 (req->ring_index - cnt);
2194 if (req->cnt < (req_cnt + 2))
2195 goto queuing_error;
2196 }
2197
2198 status |= QDSS_GOT_Q_SPACE;
2199
2200 /* Build header part of command packet (excluding the OPCODE). */
2201 req->current_outstanding_cmd = handle;
2202 req->outstanding_cmds[handle] = sp;
2203 sp->handle = handle;
2204 cmd->host_scribble = (unsigned char *)(unsigned long)handle;
2205 req->cnt -= req_cnt;
2206
2207 /* Fill-in common area */
2208 cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr;
2209 cmd_pkt->handle = make_handle(req->id, handle);
2210
2211 clr_ptr = (uint32_t *)cmd_pkt + 2;
2212 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
2213
2214 /* Set NPORT-ID and LUN number*/
2215 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2216 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
2217 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
2218 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
2219
2220 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
2221 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
2222
2223 /* Total Data and protection segment(s) */
2224 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
2225
2226 /* Build IOCB segments and adjust for data protection segments */
2227 if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *)
2228 req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) !=
2229 QLA_SUCCESS)
2230 goto queuing_error;
2231
2232 cmd_pkt->entry_count = (uint8_t)req_cnt;
2233 cmd_pkt->timeout = cpu_to_le16(0);
2234 wmb();
2235
2236 /* Adjust ring index. */
2237 req->ring_index++;
2238 if (req->ring_index == req->length) {
2239 req->ring_index = 0;
2240 req->ring_ptr = req->ring;
2241 } else
2242 req->ring_ptr++;
2243
2244 /* Set chip new ring index. */
2245 wrt_reg_dword(req->req_q_in, req->ring_index);
2246
2247 /* Manage unprocessed RIO/ZIO commands in response queue. */
2248 if (vha->flags.process_response_queue &&
2249 rsp->ring_ptr->signature != RESPONSE_PROCESSED)
2250 qla24xx_process_response_queue(vha, rsp);
2251
2252 spin_unlock_irqrestore(&qpair->qp_lock, flags);
2253
2254 return QLA_SUCCESS;
2255
2256 queuing_error:
2257 if (status & QDSS_GOT_Q_SPACE) {
2258 req->outstanding_cmds[handle] = NULL;
2259 req->cnt += req_cnt;
2260 }
2261 /* Cleanup will be performed by the caller (queuecommand) */
2262
2263 qla_put_iocbs(sp->qpair, &sp->iores);
2264 spin_unlock_irqrestore(&qpair->qp_lock, flags);
2265 return QLA_FUNCTION_FAILED;
2266 }
2267
2268 /* Generic Control-SRB manipulation functions. */
2269
2270 /* hardware_lock assumed to be held. */
2271
2272 void *
2273 __qla2x00_alloc_iocbs(struct qla_qpair *qpair, srb_t *sp)
2274 {
2275 scsi_qla_host_t *vha = qpair->vha;
2276 struct qla_hw_data *ha = vha->hw;
2277 struct req_que *req = qpair->req;
2278 device_reg_t *reg = ISP_QUE_REG(ha, req->id);
2279 uint32_t handle;
2280 request_t *pkt;
2281 uint16_t cnt, req_cnt;
2282
2283 pkt = NULL;
2284 req_cnt = 1;
2285 handle = 0;
2286
2287 if (sp && (sp->type != SRB_SCSI_CMD)) {
2288 /* Adjust entry-counts as needed. */
2289 req_cnt = sp->iocbs;
2290 }
2291
2292 /* Check for room on request queue. */
2293 if (req->cnt < req_cnt + 2) {
2294 if (qpair->use_shadow_reg)
2295 cnt = *req->out_ptr;
2296 else if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
2297 IS_QLA28XX(ha))
2298 cnt = rd_reg_dword(&reg->isp25mq.req_q_out);
2299 else if (IS_P3P_TYPE(ha))
2300 cnt = rd_reg_dword(reg->isp82.req_q_out);
2301 else if (IS_FWI2_CAPABLE(ha))
2302 cnt = rd_reg_dword(&reg->isp24.req_q_out);
2303 else if (IS_QLAFX00(ha))
2304 cnt = rd_reg_dword(&reg->ispfx00.req_q_out);
2305 else
2306 cnt = qla2x00_debounce_register(
2307 ISP_REQ_Q_OUT(ha, &reg->isp));
2308
2309 if (req->ring_index < cnt)
2310 req->cnt = cnt - req->ring_index;
2311 else
2312 req->cnt = req->length -
2313 (req->ring_index - cnt);
2314 }
2315 if (req->cnt < req_cnt + 2)
2316 goto queuing_error;
2317
2318 if (sp) {
2319 handle = qla2xxx_get_next_handle(req);
2320 if (handle == 0) {
2321 ql_log(ql_log_warn, vha, 0x700b,
2322 "No room on outstanding cmd array.\n");
2323 goto queuing_error;
2324 }
2325
2326 /* Prep command array. */
2327 req->current_outstanding_cmd = handle;
2328 req->outstanding_cmds[handle] = sp;
2329 sp->handle = handle;
2330 }
2331
2332 /* Prep packet */
2333 req->cnt -= req_cnt;
2334 pkt = req->ring_ptr;
2335 memset(pkt, 0, REQUEST_ENTRY_SIZE);
2336 if (IS_QLAFX00(ha)) {
2337 wrt_reg_byte((u8 __force __iomem *)&pkt->entry_count, req_cnt);
2338 wrt_reg_dword((__le32 __force __iomem *)&pkt->handle, handle);
2339 } else {
2340 pkt->entry_count = req_cnt;
2341 pkt->handle = handle;
2342 }
2343
2344 return pkt;
2345
2346 queuing_error:
2347 qpair->tgt_counters.num_alloc_iocb_failed++;
2348 return pkt;
2349 }
2350
2351 void *
2352 qla2x00_alloc_iocbs_ready(struct qla_qpair *qpair, srb_t *sp)
2353 {
2354 scsi_qla_host_t *vha = qpair->vha;
2355
2356 if (qla2x00_reset_active(vha))
2357 return NULL;
2358
2359 return __qla2x00_alloc_iocbs(qpair, sp);
2360 }
2361
2362 void *
2363 qla2x00_alloc_iocbs(struct scsi_qla_host *vha, srb_t *sp)
2364 {
2365 return __qla2x00_alloc_iocbs(vha->hw->base_qpair, sp);
2366 }
2367
2368 static void
2369 qla24xx_prli_iocb(srb_t *sp, struct logio_entry_24xx *logio)
2370 {
2371 struct srb_iocb *lio = &sp->u.iocb_cmd;
2372
2373 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
2374 logio->control_flags = cpu_to_le16(LCF_COMMAND_PRLI);
2375 if (lio->u.logio.flags & SRB_LOGIN_NVME_PRLI) {
2376 logio->control_flags |= cpu_to_le16(LCF_NVME_PRLI);
2377 if (sp->vha->flags.nvme_first_burst)
2378 logio->io_parameter[0] =
2379 cpu_to_le32(NVME_PRLI_SP_FIRST_BURST);
2380 if (sp->vha->flags.nvme2_enabled) {
2381 /* Set service parameter BIT_8 for SLER support */
2382 logio->io_parameter[0] |=
2383 cpu_to_le32(NVME_PRLI_SP_SLER);
2384 /* Set service parameter BIT_9 for PI control support */
2385 logio->io_parameter[0] |=
2386 cpu_to_le32(NVME_PRLI_SP_PI_CTRL);
2387 }
2388 }
2389
2390 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2391 logio->port_id[0] = sp->fcport->d_id.b.al_pa;
2392 logio->port_id[1] = sp->fcport->d_id.b.area;
2393 logio->port_id[2] = sp->fcport->d_id.b.domain;
2394 logio->vp_index = sp->vha->vp_idx;
2395 }
2396
2397 static void
2398 qla24xx_login_iocb(srb_t *sp, struct logio_entry_24xx *logio)
2399 {
2400 struct srb_iocb *lio = &sp->u.iocb_cmd;
2401
2402 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
2403 logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI);
2404
2405 if (lio->u.logio.flags & SRB_LOGIN_PRLI_ONLY) {
2406 logio->control_flags = cpu_to_le16(LCF_COMMAND_PRLI);
2407 } else {
2408 logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI);
2409 if (lio->u.logio.flags & SRB_LOGIN_COND_PLOGI)
2410 logio->control_flags |= cpu_to_le16(LCF_COND_PLOGI);
2411 if (lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI)
2412 logio->control_flags |= cpu_to_le16(LCF_SKIP_PRLI);
2413 }
2414 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2415 logio->port_id[0] = sp->fcport->d_id.b.al_pa;
2416 logio->port_id[1] = sp->fcport->d_id.b.area;
2417 logio->port_id[2] = sp->fcport->d_id.b.domain;
2418 logio->vp_index = sp->vha->vp_idx;
2419 }
2420
2421 static void
2422 qla2x00_login_iocb(srb_t *sp, struct mbx_entry *mbx)
2423 {
2424 struct qla_hw_data *ha = sp->vha->hw;
2425 struct srb_iocb *lio = &sp->u.iocb_cmd;
2426 uint16_t opts;
2427
2428 mbx->entry_type = MBX_IOCB_TYPE;
2429 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id);
2430 mbx->mb0 = cpu_to_le16(MBC_LOGIN_FABRIC_PORT);
2431 opts = lio->u.logio.flags & SRB_LOGIN_COND_PLOGI ? BIT_0 : 0;
2432 opts |= lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI ? BIT_1 : 0;
2433 if (HAS_EXTENDED_IDS(ha)) {
2434 mbx->mb1 = cpu_to_le16(sp->fcport->loop_id);
2435 mbx->mb10 = cpu_to_le16(opts);
2436 } else {
2437 mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | opts);
2438 }
2439 mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain);
2440 mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 |
2441 sp->fcport->d_id.b.al_pa);
2442 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx);
2443 }
2444
2445 static void
2446 qla24xx_logout_iocb(srb_t *sp, struct logio_entry_24xx *logio)
2447 {
2448 u16 control_flags = LCF_COMMAND_LOGO;
2449 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
2450
2451 if (sp->fcport->explicit_logout) {
2452 control_flags |= LCF_EXPL_LOGO|LCF_FREE_NPORT;
2453 } else {
2454 control_flags |= LCF_IMPL_LOGO;
2455
2456 if (!sp->fcport->keep_nport_handle)
2457 control_flags |= LCF_FREE_NPORT;
2458 }
2459
2460 logio->control_flags = cpu_to_le16(control_flags);
2461 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2462 logio->port_id[0] = sp->fcport->d_id.b.al_pa;
2463 logio->port_id[1] = sp->fcport->d_id.b.area;
2464 logio->port_id[2] = sp->fcport->d_id.b.domain;
2465 logio->vp_index = sp->vha->vp_idx;
2466 }
2467
2468 static void
2469 qla2x00_logout_iocb(srb_t *sp, struct mbx_entry *mbx)
2470 {
2471 struct qla_hw_data *ha = sp->vha->hw;
2472
2473 mbx->entry_type = MBX_IOCB_TYPE;
2474 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id);
2475 mbx->mb0 = cpu_to_le16(MBC_LOGOUT_FABRIC_PORT);
2476 mbx->mb1 = HAS_EXTENDED_IDS(ha) ?
2477 cpu_to_le16(sp->fcport->loop_id) :
2478 cpu_to_le16(sp->fcport->loop_id << 8);
2479 mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain);
2480 mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 |
2481 sp->fcport->d_id.b.al_pa);
2482 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx);
2483 /* Implicit: mbx->mbx10 = 0. */
2484 }
2485
2486 static void
2487 qla24xx_adisc_iocb(srb_t *sp, struct logio_entry_24xx *logio)
2488 {
2489 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
2490 logio->control_flags = cpu_to_le16(LCF_COMMAND_ADISC);
2491 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2492 logio->vp_index = sp->vha->vp_idx;
2493 }
2494
2495 static void
2496 qla2x00_adisc_iocb(srb_t *sp, struct mbx_entry *mbx)
2497 {
2498 struct qla_hw_data *ha = sp->vha->hw;
2499
2500 mbx->entry_type = MBX_IOCB_TYPE;
2501 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id);
2502 mbx->mb0 = cpu_to_le16(MBC_GET_PORT_DATABASE);
2503 if (HAS_EXTENDED_IDS(ha)) {
2504 mbx->mb1 = cpu_to_le16(sp->fcport->loop_id);
2505 mbx->mb10 = cpu_to_le16(BIT_0);
2506 } else {
2507 mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | BIT_0);
2508 }
2509 mbx->mb2 = cpu_to_le16(MSW(ha->async_pd_dma));
2510 mbx->mb3 = cpu_to_le16(LSW(ha->async_pd_dma));
2511 mbx->mb6 = cpu_to_le16(MSW(MSD(ha->async_pd_dma)));
2512 mbx->mb7 = cpu_to_le16(LSW(MSD(ha->async_pd_dma)));
2513 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx);
2514 }
2515
2516 static void
2517 qla24xx_tm_iocb(srb_t *sp, struct tsk_mgmt_entry *tsk)
2518 {
2519 uint32_t flags;
2520 uint64_t lun;
2521 struct fc_port *fcport = sp->fcport;
2522 scsi_qla_host_t *vha = fcport->vha;
2523 struct qla_hw_data *ha = vha->hw;
2524 struct srb_iocb *iocb = &sp->u.iocb_cmd;
2525 struct req_que *req = vha->req;
2526
2527 flags = iocb->u.tmf.flags;
2528 lun = iocb->u.tmf.lun;
2529
2530 tsk->entry_type = TSK_MGMT_IOCB_TYPE;
2531 tsk->entry_count = 1;
2532 tsk->handle = make_handle(req->id, tsk->handle);
2533 tsk->nport_handle = cpu_to_le16(fcport->loop_id);
2534 tsk->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2);
2535 tsk->control_flags = cpu_to_le32(flags);
2536 tsk->port_id[0] = fcport->d_id.b.al_pa;
2537 tsk->port_id[1] = fcport->d_id.b.area;
2538 tsk->port_id[2] = fcport->d_id.b.domain;
2539 tsk->vp_index = fcport->vha->vp_idx;
2540
2541 if (flags == TCF_LUN_RESET) {
2542 int_to_scsilun(lun, &tsk->lun);
2543 host_to_fcp_swap((uint8_t *)&tsk->lun,
2544 sizeof(tsk->lun));
2545 }
2546 }
2547
2548 void qla2x00_init_timer(srb_t *sp, unsigned long tmo)
2549 {
2550 timer_setup(&sp->u.iocb_cmd.timer, qla2x00_sp_timeout, 0);
2551 sp->u.iocb_cmd.timer.expires = jiffies + tmo * HZ;
2552 sp->free = qla2x00_sp_free;
2553 if (IS_QLAFX00(sp->vha->hw) && sp->type == SRB_FXIOCB_DCMD)
2554 init_completion(&sp->u.iocb_cmd.u.fxiocb.fxiocb_comp);
2555 sp->start_timer = 1;
2556 }
2557
2558 static void qla2x00_els_dcmd_sp_free(srb_t *sp)
2559 {
2560 struct srb_iocb *elsio = &sp->u.iocb_cmd;
2561
2562 kfree(sp->fcport);
2563
2564 if (elsio->u.els_logo.els_logo_pyld)
2565 dma_free_coherent(&sp->vha->hw->pdev->dev, DMA_POOL_SIZE,
2566 elsio->u.els_logo.els_logo_pyld,
2567 elsio->u.els_logo.els_logo_pyld_dma);
2568
2569 del_timer(&elsio->timer);
2570 qla2x00_rel_sp(sp);
2571 }
2572
2573 static void
2574 qla2x00_els_dcmd_iocb_timeout(void *data)
2575 {
2576 srb_t *sp = data;
2577 fc_port_t *fcport = sp->fcport;
2578 struct scsi_qla_host *vha = sp->vha;
2579 struct srb_iocb *lio = &sp->u.iocb_cmd;
2580 unsigned long flags = 0;
2581 int res, h;
2582
2583 ql_dbg(ql_dbg_io, vha, 0x3069,
2584 "%s Timeout, hdl=%x, portid=%02x%02x%02x\n",
2585 sp->name, sp->handle, fcport->d_id.b.domain, fcport->d_id.b.area,
2586 fcport->d_id.b.al_pa);
2587
2588 /* Abort the exchange */
2589 res = qla24xx_async_abort_cmd(sp, false);
2590 if (res) {
2591 ql_dbg(ql_dbg_io, vha, 0x3070,
2592 "mbx abort_command failed.\n");
2593 spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags);
2594 for (h = 1; h < sp->qpair->req->num_outstanding_cmds; h++) {
2595 if (sp->qpair->req->outstanding_cmds[h] == sp) {
2596 sp->qpair->req->outstanding_cmds[h] = NULL;
2597 break;
2598 }
2599 }
2600 spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags);
2601 complete(&lio->u.els_logo.comp);
2602 } else {
2603 ql_dbg(ql_dbg_io, vha, 0x3071,
2604 "mbx abort_command success.\n");
2605 }
2606 }
2607
2608 static void qla2x00_els_dcmd_sp_done(srb_t *sp, int res)
2609 {
2610 fc_port_t *fcport = sp->fcport;
2611 struct srb_iocb *lio = &sp->u.iocb_cmd;
2612 struct scsi_qla_host *vha = sp->vha;
2613
2614 ql_dbg(ql_dbg_io, vha, 0x3072,
2615 "%s hdl=%x, portid=%02x%02x%02x done\n",
2616 sp->name, sp->handle, fcport->d_id.b.domain,
2617 fcport->d_id.b.area, fcport->d_id.b.al_pa);
2618
2619 complete(&lio->u.els_logo.comp);
2620 }
2621
2622 int
2623 qla24xx_els_dcmd_iocb(scsi_qla_host_t *vha, int els_opcode,
2624 port_id_t remote_did)
2625 {
2626 srb_t *sp;
2627 fc_port_t *fcport = NULL;
2628 struct srb_iocb *elsio = NULL;
2629 struct qla_hw_data *ha = vha->hw;
2630 struct els_logo_payload logo_pyld;
2631 int rval = QLA_SUCCESS;
2632
2633 fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
2634 if (!fcport) {
2635 ql_log(ql_log_info, vha, 0x70e5, "fcport allocation failed\n");
2636 return -ENOMEM;
2637 }
2638
2639 /* Alloc SRB structure */
2640 sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
2641 if (!sp) {
2642 kfree(fcport);
2643 ql_log(ql_log_info, vha, 0x70e6,
2644 "SRB allocation failed\n");
2645 return -ENOMEM;
2646 }
2647
2648 elsio = &sp->u.iocb_cmd;
2649 fcport->loop_id = 0xFFFF;
2650 fcport->d_id.b.domain = remote_did.b.domain;
2651 fcport->d_id.b.area = remote_did.b.area;
2652 fcport->d_id.b.al_pa = remote_did.b.al_pa;
2653
2654 ql_dbg(ql_dbg_io, vha, 0x3073, "portid=%02x%02x%02x done\n",
2655 fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa);
2656
2657 sp->type = SRB_ELS_DCMD;
2658 sp->name = "ELS_DCMD";
2659 sp->fcport = fcport;
2660 elsio->timeout = qla2x00_els_dcmd_iocb_timeout;
2661 qla2x00_init_timer(sp, ELS_DCMD_TIMEOUT);
2662 init_completion(&sp->u.iocb_cmd.u.els_logo.comp);
2663 sp->done = qla2x00_els_dcmd_sp_done;
2664 sp->free = qla2x00_els_dcmd_sp_free;
2665
2666 elsio->u.els_logo.els_logo_pyld = dma_alloc_coherent(&ha->pdev->dev,
2667 DMA_POOL_SIZE, &elsio->u.els_logo.els_logo_pyld_dma,
2668 GFP_KERNEL);
2669
2670 if (!elsio->u.els_logo.els_logo_pyld) {
2671 sp->free(sp);
2672 return QLA_FUNCTION_FAILED;
2673 }
2674
2675 memset(&logo_pyld, 0, sizeof(struct els_logo_payload));
2676
2677 elsio->u.els_logo.els_cmd = els_opcode;
2678 logo_pyld.opcode = els_opcode;
2679 logo_pyld.s_id[0] = vha->d_id.b.al_pa;
2680 logo_pyld.s_id[1] = vha->d_id.b.area;
2681 logo_pyld.s_id[2] = vha->d_id.b.domain;
2682 host_to_fcp_swap(logo_pyld.s_id, sizeof(uint32_t));
2683 memcpy(&logo_pyld.wwpn, vha->port_name, WWN_SIZE);
2684
2685 memcpy(elsio->u.els_logo.els_logo_pyld, &logo_pyld,
2686 sizeof(struct els_logo_payload));
2687 ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x3075, "LOGO buffer:");
2688 ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x010a,
2689 elsio->u.els_logo.els_logo_pyld,
2690 sizeof(*elsio->u.els_logo.els_logo_pyld));
2691
2692 rval = qla2x00_start_sp(sp);
2693 if (rval != QLA_SUCCESS) {
2694 sp->free(sp);
2695 return QLA_FUNCTION_FAILED;
2696 }
2697
2698 ql_dbg(ql_dbg_io, vha, 0x3074,
2699 "%s LOGO sent, hdl=%x, loopid=%x, portid=%02x%02x%02x.\n",
2700 sp->name, sp->handle, fcport->loop_id, fcport->d_id.b.domain,
2701 fcport->d_id.b.area, fcport->d_id.b.al_pa);
2702
2703 wait_for_completion(&elsio->u.els_logo.comp);
2704
2705 sp->free(sp);
2706 return rval;
2707 }
2708
2709 static void
2710 qla24xx_els_logo_iocb(srb_t *sp, struct els_entry_24xx *els_iocb)
2711 {
2712 scsi_qla_host_t *vha = sp->vha;
2713 struct srb_iocb *elsio = &sp->u.iocb_cmd;
2714
2715 els_iocb->entry_type = ELS_IOCB_TYPE;
2716 els_iocb->entry_count = 1;
2717 els_iocb->sys_define = 0;
2718 els_iocb->entry_status = 0;
2719 els_iocb->handle = sp->handle;
2720 els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2721 els_iocb->tx_dsd_count = cpu_to_le16(1);
2722 els_iocb->vp_index = vha->vp_idx;
2723 els_iocb->sof_type = EST_SOFI3;
2724 els_iocb->rx_dsd_count = 0;
2725 els_iocb->opcode = elsio->u.els_logo.els_cmd;
2726
2727 els_iocb->d_id[0] = sp->fcport->d_id.b.al_pa;
2728 els_iocb->d_id[1] = sp->fcport->d_id.b.area;
2729 els_iocb->d_id[2] = sp->fcport->d_id.b.domain;
2730 /* For SID the byte order is different than DID */
2731 els_iocb->s_id[1] = vha->d_id.b.al_pa;
2732 els_iocb->s_id[2] = vha->d_id.b.area;
2733 els_iocb->s_id[0] = vha->d_id.b.domain;
2734
2735 if (elsio->u.els_logo.els_cmd == ELS_DCMD_PLOGI) {
2736 els_iocb->control_flags = 0;
2737 els_iocb->tx_byte_count = els_iocb->tx_len =
2738 cpu_to_le32(sizeof(struct els_plogi_payload));
2739 put_unaligned_le64(elsio->u.els_plogi.els_plogi_pyld_dma,
2740 &els_iocb->tx_address);
2741 els_iocb->rx_dsd_count = cpu_to_le16(1);
2742 els_iocb->rx_byte_count = els_iocb->rx_len =
2743 cpu_to_le32(sizeof(struct els_plogi_payload));
2744 put_unaligned_le64(elsio->u.els_plogi.els_resp_pyld_dma,
2745 &els_iocb->rx_address);
2746
2747 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3073,
2748 "PLOGI ELS IOCB:\n");
2749 ql_dump_buffer(ql_log_info, vha, 0x0109,
2750 (uint8_t *)els_iocb,
2751 sizeof(*els_iocb));
2752 } else {
2753 els_iocb->control_flags = cpu_to_le16(1 << 13);
2754 els_iocb->tx_byte_count =
2755 cpu_to_le32(sizeof(struct els_logo_payload));
2756 put_unaligned_le64(elsio->u.els_logo.els_logo_pyld_dma,
2757 &els_iocb->tx_address);
2758 els_iocb->tx_len = cpu_to_le32(sizeof(struct els_logo_payload));
2759
2760 els_iocb->rx_byte_count = 0;
2761 els_iocb->rx_address = 0;
2762 els_iocb->rx_len = 0;
2763 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3076,
2764 "LOGO ELS IOCB:");
2765 ql_dump_buffer(ql_log_info, vha, 0x010b,
2766 els_iocb,
2767 sizeof(*els_iocb));
2768 }
2769
2770 sp->vha->qla_stats.control_requests++;
2771 }
2772
2773 static void
2774 qla2x00_els_dcmd2_iocb_timeout(void *data)
2775 {
2776 srb_t *sp = data;
2777 fc_port_t *fcport = sp->fcport;
2778 struct scsi_qla_host *vha = sp->vha;
2779 unsigned long flags = 0;
2780 int res, h;
2781
2782 ql_dbg(ql_dbg_io + ql_dbg_disc, vha, 0x3069,
2783 "%s hdl=%x ELS Timeout, %8phC portid=%06x\n",
2784 sp->name, sp->handle, fcport->port_name, fcport->d_id.b24);
2785
2786 /* Abort the exchange */
2787 res = qla24xx_async_abort_cmd(sp, false);
2788 ql_dbg(ql_dbg_io, vha, 0x3070,
2789 "mbx abort_command %s\n",
2790 (res == QLA_SUCCESS) ? "successful" : "failed");
2791 if (res) {
2792 spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags);
2793 for (h = 1; h < sp->qpair->req->num_outstanding_cmds; h++) {
2794 if (sp->qpair->req->outstanding_cmds[h] == sp) {
2795 sp->qpair->req->outstanding_cmds[h] = NULL;
2796 break;
2797 }
2798 }
2799 spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags);
2800 sp->done(sp, QLA_FUNCTION_TIMEOUT);
2801 }
2802 }
2803
2804 void qla2x00_els_dcmd2_free(scsi_qla_host_t *vha, struct els_plogi *els_plogi)
2805 {
2806 if (els_plogi->els_plogi_pyld)
2807 dma_free_coherent(&vha->hw->pdev->dev,
2808 els_plogi->tx_size,
2809 els_plogi->els_plogi_pyld,
2810 els_plogi->els_plogi_pyld_dma);
2811
2812 if (els_plogi->els_resp_pyld)
2813 dma_free_coherent(&vha->hw->pdev->dev,
2814 els_plogi->rx_size,
2815 els_plogi->els_resp_pyld,
2816 els_plogi->els_resp_pyld_dma);
2817 }
2818
2819 static void qla2x00_els_dcmd2_sp_done(srb_t *sp, int res)
2820 {
2821 fc_port_t *fcport = sp->fcport;
2822 struct srb_iocb *lio = &sp->u.iocb_cmd;
2823 struct scsi_qla_host *vha = sp->vha;
2824 struct event_arg ea;
2825 struct qla_work_evt *e;
2826 struct fc_port *conflict_fcport;
2827 port_id_t cid; /* conflict Nport id */
2828 const __le32 *fw_status = sp->u.iocb_cmd.u.els_plogi.fw_status;
2829 u16 lid;
2830
2831 ql_dbg(ql_dbg_disc, vha, 0x3072,
2832 "%s ELS done rc %d hdl=%x, portid=%06x %8phC\n",
2833 sp->name, res, sp->handle, fcport->d_id.b24, fcport->port_name);
2834
2835 fcport->flags &= ~(FCF_ASYNC_SENT|FCF_ASYNC_ACTIVE);
2836 del_timer(&sp->u.iocb_cmd.timer);
2837
2838 if (sp->flags & SRB_WAKEUP_ON_COMP)
2839 complete(&lio->u.els_plogi.comp);
2840 else {
2841 switch (le32_to_cpu(fw_status[0])) {
2842 case CS_DATA_UNDERRUN:
2843 case CS_COMPLETE:
2844 memset(&ea, 0, sizeof(ea));
2845 ea.fcport = fcport;
2846 ea.rc = res;
2847 qla_handle_els_plogi_done(vha, &ea);
2848 break;
2849
2850 case CS_IOCB_ERROR:
2851 switch (le32_to_cpu(fw_status[1])) {
2852 case LSC_SCODE_PORTID_USED:
2853 lid = le32_to_cpu(fw_status[2]) & 0xffff;
2854 qlt_find_sess_invalidate_other(vha,
2855 wwn_to_u64(fcport->port_name),
2856 fcport->d_id, lid, &conflict_fcport);
2857 if (conflict_fcport) {
2858 /*
2859 * Another fcport shares the same
2860 * loop_id & nport id; conflict
2861 * fcport needs to finish cleanup
2862 * before this fcport can proceed
2863 * to login.
2864 */
2865 conflict_fcport->conflict = fcport;
2866 fcport->login_pause = 1;
2867 ql_dbg(ql_dbg_disc, vha, 0x20ed,
2868 "%s %d %8phC pid %06x inuse with lid %#x post gidpn\n",
2869 __func__, __LINE__,
2870 fcport->port_name,
2871 fcport->d_id.b24, lid);
2872 } else {
2873 ql_dbg(ql_dbg_disc, vha, 0x20ed,
2874 "%s %d %8phC pid %06x inuse with lid %#x sched del\n",
2875 __func__, __LINE__,
2876 fcport->port_name,
2877 fcport->d_id.b24, lid);
2878 qla2x00_clear_loop_id(fcport);
2879 set_bit(lid, vha->hw->loop_id_map);
2880 fcport->loop_id = lid;
2881 fcport->keep_nport_handle = 0;
2882 qlt_schedule_sess_for_deletion(fcport);
2883 }
2884 break;
2885
2886 case LSC_SCODE_NPORT_USED:
2887 cid.b.domain = (le32_to_cpu(fw_status[2]) >> 16)
2888 & 0xff;
2889 cid.b.area = (le32_to_cpu(fw_status[2]) >> 8)
2890 & 0xff;
2891 cid.b.al_pa = le32_to_cpu(fw_status[2]) & 0xff;
2892 cid.b.rsvd_1 = 0;
2893
2894 ql_dbg(ql_dbg_disc, vha, 0x20ec,
2895 "%s %d %8phC lid %#x in use with pid %06x post gnl\n",
2896 __func__, __LINE__, fcport->port_name,
2897 fcport->loop_id, cid.b24);
2898 set_bit(fcport->loop_id,
2899 vha->hw->loop_id_map);
2900 fcport->loop_id = FC_NO_LOOP_ID;
2901 qla24xx_post_gnl_work(vha, fcport);
2902 break;
2903
2904 case LSC_SCODE_NOXCB:
2905 vha->hw->exch_starvation++;
2906 if (vha->hw->exch_starvation > 5) {
2907 ql_log(ql_log_warn, vha, 0xd046,
2908 "Exchange starvation. Resetting RISC\n");
2909 vha->hw->exch_starvation = 0;
2910 set_bit(ISP_ABORT_NEEDED,
2911 &vha->dpc_flags);
2912 qla2xxx_wake_dpc(vha);
2913 }
2914 fallthrough;
2915 default:
2916 ql_dbg(ql_dbg_disc, vha, 0x20eb,
2917 "%s %8phC cmd error fw_status 0x%x 0x%x 0x%x\n",
2918 __func__, sp->fcport->port_name,
2919 fw_status[0], fw_status[1], fw_status[2]);
2920
2921 fcport->flags &= ~FCF_ASYNC_SENT;
2922 qla2x00_set_fcport_disc_state(fcport,
2923 DSC_LOGIN_FAILED);
2924 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2925 break;
2926 }
2927 break;
2928
2929 default:
2930 ql_dbg(ql_dbg_disc, vha, 0x20eb,
2931 "%s %8phC cmd error 2 fw_status 0x%x 0x%x 0x%x\n",
2932 __func__, sp->fcport->port_name,
2933 fw_status[0], fw_status[1], fw_status[2]);
2934
2935 sp->fcport->flags &= ~FCF_ASYNC_SENT;
2936 qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_FAILED);
2937 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2938 break;
2939 }
2940
2941 e = qla2x00_alloc_work(vha, QLA_EVT_UNMAP);
2942 if (!e) {
2943 struct srb_iocb *elsio = &sp->u.iocb_cmd;
2944
2945 qla2x00_els_dcmd2_free(vha, &elsio->u.els_plogi);
2946 sp->free(sp);
2947 return;
2948 }
2949 e->u.iosb.sp = sp;
2950 qla2x00_post_work(vha, e);
2951 }
2952 }
2953
2954 int
2955 qla24xx_els_dcmd2_iocb(scsi_qla_host_t *vha, int els_opcode,
2956 fc_port_t *fcport, bool wait)
2957 {
2958 srb_t *sp;
2959 struct srb_iocb *elsio = NULL;
2960 struct qla_hw_data *ha = vha->hw;
2961 int rval = QLA_SUCCESS;
2962 void *ptr, *resp_ptr;
2963
2964 /* Alloc SRB structure */
2965 sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
2966 if (!sp) {
2967 ql_log(ql_log_info, vha, 0x70e6,
2968 "SRB allocation failed\n");
2969 fcport->flags &= ~FCF_ASYNC_ACTIVE;
2970 return -ENOMEM;
2971 }
2972
2973 fcport->flags |= FCF_ASYNC_SENT;
2974 qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_PEND);
2975 elsio = &sp->u.iocb_cmd;
2976 ql_dbg(ql_dbg_io, vha, 0x3073,
2977 "Enter: PLOGI portid=%06x\n", fcport->d_id.b24);
2978
2979 sp->type = SRB_ELS_DCMD;
2980 sp->name = "ELS_DCMD";
2981 sp->fcport = fcport;
2982
2983 elsio->timeout = qla2x00_els_dcmd2_iocb_timeout;
2984 if (wait)
2985 sp->flags = SRB_WAKEUP_ON_COMP;
2986
2987 qla2x00_init_timer(sp, ELS_DCMD_TIMEOUT + 2);
2988
2989 sp->done = qla2x00_els_dcmd2_sp_done;
2990 elsio->u.els_plogi.tx_size = elsio->u.els_plogi.rx_size = DMA_POOL_SIZE;
2991
2992 ptr = elsio->u.els_plogi.els_plogi_pyld =
2993 dma_alloc_coherent(&ha->pdev->dev, elsio->u.els_plogi.tx_size,
2994 &elsio->u.els_plogi.els_plogi_pyld_dma, GFP_KERNEL);
2995
2996 if (!elsio->u.els_plogi.els_plogi_pyld) {
2997 rval = QLA_FUNCTION_FAILED;
2998 goto out;
2999 }
3000
3001 resp_ptr = elsio->u.els_plogi.els_resp_pyld =
3002 dma_alloc_coherent(&ha->pdev->dev, elsio->u.els_plogi.rx_size,
3003 &elsio->u.els_plogi.els_resp_pyld_dma, GFP_KERNEL);
3004
3005 if (!elsio->u.els_plogi.els_resp_pyld) {
3006 rval = QLA_FUNCTION_FAILED;
3007 goto out;
3008 }
3009
3010 ql_dbg(ql_dbg_io, vha, 0x3073, "PLOGI %p %p\n", ptr, resp_ptr);
3011
3012 memset(ptr, 0, sizeof(struct els_plogi_payload));
3013 memset(resp_ptr, 0, sizeof(struct els_plogi_payload));
3014 memcpy(elsio->u.els_plogi.els_plogi_pyld->data,
3015 &ha->plogi_els_payld.fl_csp, LOGIN_TEMPLATE_SIZE);
3016
3017 elsio->u.els_plogi.els_cmd = els_opcode;
3018 elsio->u.els_plogi.els_plogi_pyld->opcode = els_opcode;
3019
3020 ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x3073, "PLOGI buffer:\n");
3021 ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x0109,
3022 (uint8_t *)elsio->u.els_plogi.els_plogi_pyld,
3023 sizeof(*elsio->u.els_plogi.els_plogi_pyld));
3024
3025 init_completion(&elsio->u.els_plogi.comp);
3026 rval = qla2x00_start_sp(sp);
3027 if (rval != QLA_SUCCESS) {
3028 rval = QLA_FUNCTION_FAILED;
3029 } else {
3030 ql_dbg(ql_dbg_disc, vha, 0x3074,
3031 "%s PLOGI sent, hdl=%x, loopid=%x, to port_id %06x from port_id %06x\n",
3032 sp->name, sp->handle, fcport->loop_id,
3033 fcport->d_id.b24, vha->d_id.b24);
3034 }
3035
3036 if (wait) {
3037 wait_for_completion(&elsio->u.els_plogi.comp);
3038
3039 if (elsio->u.els_plogi.comp_status != CS_COMPLETE)
3040 rval = QLA_FUNCTION_FAILED;
3041 } else {
3042 goto done;
3043 }
3044
3045 out:
3046 fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
3047 qla2x00_els_dcmd2_free(vha, &elsio->u.els_plogi);
3048 sp->free(sp);
3049 done:
3050 return rval;
3051 }
3052
3053 static void
3054 qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb)
3055 {
3056 struct bsg_job *bsg_job = sp->u.bsg_job;
3057 struct fc_bsg_request *bsg_request = bsg_job->request;
3058
3059 els_iocb->entry_type = ELS_IOCB_TYPE;
3060 els_iocb->entry_count = 1;
3061 els_iocb->sys_define = 0;
3062 els_iocb->entry_status = 0;
3063 els_iocb->handle = sp->handle;
3064 els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
3065 els_iocb->tx_dsd_count = cpu_to_le16(bsg_job->request_payload.sg_cnt);
3066 els_iocb->vp_index = sp->vha->vp_idx;
3067 els_iocb->sof_type = EST_SOFI3;
3068 els_iocb->rx_dsd_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt);
3069
3070 els_iocb->opcode =
3071 sp->type == SRB_ELS_CMD_RPT ?
3072 bsg_request->rqst_data.r_els.els_code :
3073 bsg_request->rqst_data.h_els.command_code;
3074 els_iocb->d_id[0] = sp->fcport->d_id.b.al_pa;
3075 els_iocb->d_id[1] = sp->fcport->d_id.b.area;
3076 els_iocb->d_id[2] = sp->fcport->d_id.b.domain;
3077 els_iocb->control_flags = 0;
3078 els_iocb->rx_byte_count =
3079 cpu_to_le32(bsg_job->reply_payload.payload_len);
3080 els_iocb->tx_byte_count =
3081 cpu_to_le32(bsg_job->request_payload.payload_len);
3082
3083 put_unaligned_le64(sg_dma_address(bsg_job->request_payload.sg_list),
3084 &els_iocb->tx_address);
3085 els_iocb->tx_len = cpu_to_le32(sg_dma_len
3086 (bsg_job->request_payload.sg_list));
3087
3088 put_unaligned_le64(sg_dma_address(bsg_job->reply_payload.sg_list),
3089 &els_iocb->rx_address);
3090 els_iocb->rx_len = cpu_to_le32(sg_dma_len
3091 (bsg_job->reply_payload.sg_list));
3092
3093 sp->vha->qla_stats.control_requests++;
3094 }
3095
3096 static void
3097 qla2x00_ct_iocb(srb_t *sp, ms_iocb_entry_t *ct_iocb)
3098 {
3099 uint16_t avail_dsds;
3100 struct dsd64 *cur_dsd;
3101 struct scatterlist *sg;
3102 int index;
3103 uint16_t tot_dsds;
3104 scsi_qla_host_t *vha = sp->vha;
3105 struct qla_hw_data *ha = vha->hw;
3106 struct bsg_job *bsg_job = sp->u.bsg_job;
3107 int entry_count = 1;
3108
3109 memset(ct_iocb, 0, sizeof(ms_iocb_entry_t));
3110 ct_iocb->entry_type = CT_IOCB_TYPE;
3111 ct_iocb->entry_status = 0;
3112 ct_iocb->handle1 = sp->handle;
3113 SET_TARGET_ID(ha, ct_iocb->loop_id, sp->fcport->loop_id);
3114 ct_iocb->status = cpu_to_le16(0);
3115 ct_iocb->control_flags = cpu_to_le16(0);
3116 ct_iocb->timeout = 0;
3117 ct_iocb->cmd_dsd_count =
3118 cpu_to_le16(bsg_job->request_payload.sg_cnt);
3119 ct_iocb->total_dsd_count =
3120 cpu_to_le16(bsg_job->request_payload.sg_cnt + 1);
3121 ct_iocb->req_bytecount =
3122 cpu_to_le32(bsg_job->request_payload.payload_len);
3123 ct_iocb->rsp_bytecount =
3124 cpu_to_le32(bsg_job->reply_payload.payload_len);
3125
3126 put_unaligned_le64(sg_dma_address(bsg_job->request_payload.sg_list),
3127 &ct_iocb->req_dsd.address);
3128 ct_iocb->req_dsd.length = ct_iocb->req_bytecount;
3129
3130 put_unaligned_le64(sg_dma_address(bsg_job->reply_payload.sg_list),
3131 &ct_iocb->rsp_dsd.address);
3132 ct_iocb->rsp_dsd.length = ct_iocb->rsp_bytecount;
3133
3134 avail_dsds = 1;
3135 cur_dsd = &ct_iocb->rsp_dsd;
3136 index = 0;
3137 tot_dsds = bsg_job->reply_payload.sg_cnt;
3138
3139 for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) {
3140 cont_a64_entry_t *cont_pkt;
3141
3142 /* Allocate additional continuation packets? */
3143 if (avail_dsds == 0) {
3144 /*
3145 * Five DSDs are available in the Cont.
3146 * Type 1 IOCB.
3147 */
3148 cont_pkt = qla2x00_prep_cont_type1_iocb(vha,
3149 vha->hw->req_q_map[0]);
3150 cur_dsd = cont_pkt->dsd;
3151 avail_dsds = 5;
3152 entry_count++;
3153 }
3154
3155 append_dsd64(&cur_dsd, sg);
3156 avail_dsds--;
3157 }
3158 ct_iocb->entry_count = entry_count;
3159
3160 sp->vha->qla_stats.control_requests++;
3161 }
3162
3163 static void
3164 qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb)
3165 {
3166 uint16_t avail_dsds;
3167 struct dsd64 *cur_dsd;
3168 struct scatterlist *sg;
3169 int index;
3170 uint16_t cmd_dsds, rsp_dsds;
3171 scsi_qla_host_t *vha = sp->vha;
3172 struct qla_hw_data *ha = vha->hw;
3173 struct bsg_job *bsg_job = sp->u.bsg_job;
3174 int entry_count = 1;
3175 cont_a64_entry_t *cont_pkt = NULL;
3176
3177 ct_iocb->entry_type = CT_IOCB_TYPE;
3178 ct_iocb->entry_status = 0;
3179 ct_iocb->sys_define = 0;
3180 ct_iocb->handle = sp->handle;
3181
3182 ct_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
3183 ct_iocb->vp_index = sp->vha->vp_idx;
3184 ct_iocb->comp_status = cpu_to_le16(0);
3185
3186 cmd_dsds = bsg_job->request_payload.sg_cnt;
3187 rsp_dsds = bsg_job->reply_payload.sg_cnt;
3188
3189 ct_iocb->cmd_dsd_count = cpu_to_le16(cmd_dsds);
3190 ct_iocb->timeout = 0;
3191 ct_iocb->rsp_dsd_count = cpu_to_le16(rsp_dsds);
3192 ct_iocb->cmd_byte_count =
3193 cpu_to_le32(bsg_job->request_payload.payload_len);
3194
3195 avail_dsds = 2;
3196 cur_dsd = ct_iocb->dsd;
3197 index = 0;
3198
3199 for_each_sg(bsg_job->request_payload.sg_list, sg, cmd_dsds, index) {
3200 /* Allocate additional continuation packets? */
3201 if (avail_dsds == 0) {
3202 /*
3203 * Five DSDs are available in the Cont.
3204 * Type 1 IOCB.
3205 */
3206 cont_pkt = qla2x00_prep_cont_type1_iocb(
3207 vha, ha->req_q_map[0]);
3208 cur_dsd = cont_pkt->dsd;
3209 avail_dsds = 5;
3210 entry_count++;
3211 }
3212
3213 append_dsd64(&cur_dsd, sg);
3214 avail_dsds--;
3215 }
3216
3217 index = 0;
3218
3219 for_each_sg(bsg_job->reply_payload.sg_list, sg, rsp_dsds, index) {
3220 /* Allocate additional continuation packets? */
3221 if (avail_dsds == 0) {
3222 /*
3223 * Five DSDs are available in the Cont.
3224 * Type 1 IOCB.
3225 */
3226 cont_pkt = qla2x00_prep_cont_type1_iocb(vha,
3227 ha->req_q_map[0]);
3228 cur_dsd = cont_pkt->dsd;
3229 avail_dsds = 5;
3230 entry_count++;
3231 }
3232
3233 append_dsd64(&cur_dsd, sg);
3234 avail_dsds--;
3235 }
3236 ct_iocb->entry_count = entry_count;
3237 }
3238
3239 /*
3240 * qla82xx_start_scsi() - Send a SCSI command to the ISP
3241 * @sp: command to send to the ISP
3242 *
3243 * Returns non-zero if a failure occurred, else zero.
3244 */
3245 int
3246 qla82xx_start_scsi(srb_t *sp)
3247 {
3248 int nseg;
3249 unsigned long flags;
3250 struct scsi_cmnd *cmd;
3251 uint32_t *clr_ptr;
3252 uint32_t handle;
3253 uint16_t cnt;
3254 uint16_t req_cnt;
3255 uint16_t tot_dsds;
3256 struct device_reg_82xx __iomem *reg;
3257 uint32_t dbval;
3258 __be32 *fcp_dl;
3259 uint8_t additional_cdb_len;
3260 struct ct6_dsd *ctx;
3261 struct scsi_qla_host *vha = sp->vha;
3262 struct qla_hw_data *ha = vha->hw;
3263 struct req_que *req = NULL;
3264 struct rsp_que *rsp = NULL;
3265
3266 /* Setup device pointers. */
3267 reg = &ha->iobase->isp82;
3268 cmd = GET_CMD_SP(sp);
3269 req = vha->req;
3270 rsp = ha->rsp_q_map[0];
3271
3272 /* So we know we haven't pci_map'ed anything yet */
3273 tot_dsds = 0;
3274
3275 dbval = 0x04 | (ha->portnum << 5);
3276
3277 /* Send marker if required */
3278 if (vha->marker_needed != 0) {
3279 if (qla2x00_marker(vha, ha->base_qpair,
3280 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) {
3281 ql_log(ql_log_warn, vha, 0x300c,
3282 "qla2x00_marker failed for cmd=%p.\n", cmd);
3283 return QLA_FUNCTION_FAILED;
3284 }
3285 vha->marker_needed = 0;
3286 }
3287
3288 /* Acquire ring specific lock */
3289 spin_lock_irqsave(&ha->hardware_lock, flags);
3290
3291 handle = qla2xxx_get_next_handle(req);
3292 if (handle == 0)
3293 goto queuing_error;
3294
3295 /* Map the sg table so we have an accurate count of sg entries needed */
3296 if (scsi_sg_count(cmd)) {
3297 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
3298 scsi_sg_count(cmd), cmd->sc_data_direction);
3299 if (unlikely(!nseg))
3300 goto queuing_error;
3301 } else
3302 nseg = 0;
3303
3304 tot_dsds = nseg;
3305
3306 if (tot_dsds > ql2xshiftctondsd) {
3307 struct cmd_type_6 *cmd_pkt;
3308 uint16_t more_dsd_lists = 0;
3309 struct dsd_dma *dsd_ptr;
3310 uint16_t i;
3311
3312 more_dsd_lists = qla24xx_calc_dsd_lists(tot_dsds);
3313 if ((more_dsd_lists + ha->gbl_dsd_inuse) >= NUM_DSD_CHAIN) {
3314 ql_dbg(ql_dbg_io, vha, 0x300d,
3315 "Num of DSD list %d is than %d for cmd=%p.\n",
3316 more_dsd_lists + ha->gbl_dsd_inuse, NUM_DSD_CHAIN,
3317 cmd);
3318 goto queuing_error;
3319 }
3320
3321 if (more_dsd_lists <= ha->gbl_dsd_avail)
3322 goto sufficient_dsds;
3323 else
3324 more_dsd_lists -= ha->gbl_dsd_avail;
3325
3326 for (i = 0; i < more_dsd_lists; i++) {
3327 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
3328 if (!dsd_ptr) {
3329 ql_log(ql_log_fatal, vha, 0x300e,
3330 "Failed to allocate memory for dsd_dma "
3331 "for cmd=%p.\n", cmd);
3332 goto queuing_error;
3333 }
3334
3335 dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool,
3336 GFP_ATOMIC, &dsd_ptr->dsd_list_dma);
3337 if (!dsd_ptr->dsd_addr) {
3338 kfree(dsd_ptr);
3339 ql_log(ql_log_fatal, vha, 0x300f,
3340 "Failed to allocate memory for dsd_addr "
3341 "for cmd=%p.\n", cmd);
3342 goto queuing_error;
3343 }
3344 list_add_tail(&dsd_ptr->list, &ha->gbl_dsd_list);
3345 ha->gbl_dsd_avail++;
3346 }
3347
3348 sufficient_dsds:
3349 req_cnt = 1;
3350
3351 if (req->cnt < (req_cnt + 2)) {
3352 cnt = (uint16_t)rd_reg_dword_relaxed(
3353 &reg->req_q_out[0]);
3354 if (req->ring_index < cnt)
3355 req->cnt = cnt - req->ring_index;
3356 else
3357 req->cnt = req->length -
3358 (req->ring_index - cnt);
3359 if (req->cnt < (req_cnt + 2))
3360 goto queuing_error;
3361 }
3362
3363 ctx = sp->u.scmd.ct6_ctx =
3364 mempool_alloc(ha->ctx_mempool, GFP_ATOMIC);
3365 if (!ctx) {
3366 ql_log(ql_log_fatal, vha, 0x3010,
3367 "Failed to allocate ctx for cmd=%p.\n", cmd);
3368 goto queuing_error;
3369 }
3370
3371 memset(ctx, 0, sizeof(struct ct6_dsd));
3372 ctx->fcp_cmnd = dma_pool_zalloc(ha->fcp_cmnd_dma_pool,
3373 GFP_ATOMIC, &ctx->fcp_cmnd_dma);
3374 if (!ctx->fcp_cmnd) {
3375 ql_log(ql_log_fatal, vha, 0x3011,
3376 "Failed to allocate fcp_cmnd for cmd=%p.\n", cmd);
3377 goto queuing_error;
3378 }
3379
3380 /* Initialize the DSD list and dma handle */
3381 INIT_LIST_HEAD(&ctx->dsd_list);
3382 ctx->dsd_use_cnt = 0;
3383
3384 if (cmd->cmd_len > 16) {
3385 additional_cdb_len = cmd->cmd_len - 16;
3386 if ((cmd->cmd_len % 4) != 0) {
3387 /* SCSI command bigger than 16 bytes must be
3388 * multiple of 4
3389 */
3390 ql_log(ql_log_warn, vha, 0x3012,
3391 "scsi cmd len %d not multiple of 4 "
3392 "for cmd=%p.\n", cmd->cmd_len, cmd);
3393 goto queuing_error_fcp_cmnd;
3394 }
3395 ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4;
3396 } else {
3397 additional_cdb_len = 0;
3398 ctx->fcp_cmnd_len = 12 + 16 + 4;
3399 }
3400
3401 cmd_pkt = (struct cmd_type_6 *)req->ring_ptr;
3402 cmd_pkt->handle = make_handle(req->id, handle);
3403
3404 /* Zero out remaining portion of packet. */
3405 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */
3406 clr_ptr = (uint32_t *)cmd_pkt + 2;
3407 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
3408 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
3409
3410 /* Set NPORT-ID and LUN number*/
3411 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
3412 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
3413 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
3414 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
3415 cmd_pkt->vp_index = sp->vha->vp_idx;
3416
3417 /* Build IOCB segments */
3418 if (qla24xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds))
3419 goto queuing_error_fcp_cmnd;
3420
3421 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
3422 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
3423
3424 /* build FCP_CMND IU */
3425 int_to_scsilun(cmd->device->lun, &ctx->fcp_cmnd->lun);
3426 ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len;
3427
3428 if (cmd->sc_data_direction == DMA_TO_DEVICE)
3429 ctx->fcp_cmnd->additional_cdb_len |= 1;
3430 else if (cmd->sc_data_direction == DMA_FROM_DEVICE)
3431 ctx->fcp_cmnd->additional_cdb_len |= 2;
3432
3433 /* Populate the FCP_PRIO. */
3434 if (ha->flags.fcp_prio_enabled)
3435 ctx->fcp_cmnd->task_attribute |=
3436 sp->fcport->fcp_prio << 3;
3437
3438 memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len);
3439
3440 fcp_dl = (__be32 *)(ctx->fcp_cmnd->cdb + 16 +
3441 additional_cdb_len);
3442 *fcp_dl = htonl((uint32_t)scsi_bufflen(cmd));
3443
3444 cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len);
3445 put_unaligned_le64(ctx->fcp_cmnd_dma,
3446 &cmd_pkt->fcp_cmnd_dseg_address);
3447
3448 sp->flags |= SRB_FCP_CMND_DMA_VALID;
3449 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
3450 /* Set total data segment count. */
3451 cmd_pkt->entry_count = (uint8_t)req_cnt;
3452 /* Specify response queue number where
3453 * completion should happen
3454 */
3455 cmd_pkt->entry_status = (uint8_t) rsp->id;
3456 } else {
3457 struct cmd_type_7 *cmd_pkt;
3458
3459 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
3460 if (req->cnt < (req_cnt + 2)) {
3461 cnt = (uint16_t)rd_reg_dword_relaxed(
3462 &reg->req_q_out[0]);
3463 if (req->ring_index < cnt)
3464 req->cnt = cnt - req->ring_index;
3465 else
3466 req->cnt = req->length -
3467 (req->ring_index - cnt);
3468 }
3469 if (req->cnt < (req_cnt + 2))
3470 goto queuing_error;
3471
3472 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr;
3473 cmd_pkt->handle = make_handle(req->id, handle);
3474
3475 /* Zero out remaining portion of packet. */
3476 /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/
3477 clr_ptr = (uint32_t *)cmd_pkt + 2;
3478 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
3479 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
3480
3481 /* Set NPORT-ID and LUN number*/
3482 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
3483 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
3484 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
3485 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
3486 cmd_pkt->vp_index = sp->vha->vp_idx;
3487
3488 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
3489 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun,
3490 sizeof(cmd_pkt->lun));
3491
3492 /* Populate the FCP_PRIO. */
3493 if (ha->flags.fcp_prio_enabled)
3494 cmd_pkt->task |= sp->fcport->fcp_prio << 3;
3495
3496 /* Load SCSI command packet. */
3497 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len);
3498 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb));
3499
3500 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
3501
3502 /* Build IOCB segments */
3503 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req);
3504
3505 /* Set total data segment count. */
3506 cmd_pkt->entry_count = (uint8_t)req_cnt;
3507 /* Specify response queue number where
3508 * completion should happen.
3509 */
3510 cmd_pkt->entry_status = (uint8_t) rsp->id;
3511
3512 }
3513 /* Build command packet. */
3514 req->current_outstanding_cmd = handle;
3515 req->outstanding_cmds[handle] = sp;
3516 sp->handle = handle;
3517 cmd->host_scribble = (unsigned char *)(unsigned long)handle;
3518 req->cnt -= req_cnt;
3519 wmb();
3520
3521 /* Adjust ring index. */
3522 req->ring_index++;
3523 if (req->ring_index == req->length) {
3524 req->ring_index = 0;
3525 req->ring_ptr = req->ring;
3526 } else
3527 req->ring_ptr++;
3528
3529 sp->flags |= SRB_DMA_VALID;
3530
3531 /* Set chip new ring index. */
3532 /* write, read and verify logic */
3533 dbval = dbval | (req->id << 8) | (req->ring_index << 16);
3534 if (ql2xdbwr)
3535 qla82xx_wr_32(ha, (uintptr_t __force)ha->nxdb_wr_ptr, dbval);
3536 else {
3537 wrt_reg_dword(ha->nxdb_wr_ptr, dbval);
3538 wmb();
3539 while (rd_reg_dword(ha->nxdb_rd_ptr) != dbval) {
3540 wrt_reg_dword(ha->nxdb_wr_ptr, dbval);
3541 wmb();
3542 }
3543 }
3544
3545 /* Manage unprocessed RIO/ZIO commands in response queue. */
3546 if (vha->flags.process_response_queue &&
3547 rsp->ring_ptr->signature != RESPONSE_PROCESSED)
3548 qla24xx_process_response_queue(vha, rsp);
3549
3550 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3551 return QLA_SUCCESS;
3552
3553 queuing_error_fcp_cmnd:
3554 dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma);
3555 queuing_error:
3556 if (tot_dsds)
3557 scsi_dma_unmap(cmd);
3558
3559 if (sp->u.scmd.crc_ctx) {
3560 mempool_free(sp->u.scmd.crc_ctx, ha->ctx_mempool);
3561 sp->u.scmd.crc_ctx = NULL;
3562 }
3563 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3564
3565 return QLA_FUNCTION_FAILED;
3566 }
3567
3568 static void
3569 qla24xx_abort_iocb(srb_t *sp, struct abort_entry_24xx *abt_iocb)
3570 {
3571 struct srb_iocb *aio = &sp->u.iocb_cmd;
3572 scsi_qla_host_t *vha = sp->vha;
3573 struct req_que *req = sp->qpair->req;
3574
3575 memset(abt_iocb, 0, sizeof(struct abort_entry_24xx));
3576 abt_iocb->entry_type = ABORT_IOCB_TYPE;
3577 abt_iocb->entry_count = 1;
3578 abt_iocb->handle = make_handle(req->id, sp->handle);
3579 if (sp->fcport) {
3580 abt_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
3581 abt_iocb->port_id[0] = sp->fcport->d_id.b.al_pa;
3582 abt_iocb->port_id[1] = sp->fcport->d_id.b.area;
3583 abt_iocb->port_id[2] = sp->fcport->d_id.b.domain;
3584 }
3585 abt_iocb->handle_to_abort =
3586 make_handle(le16_to_cpu(aio->u.abt.req_que_no),
3587 aio->u.abt.cmd_hndl);
3588 abt_iocb->vp_index = vha->vp_idx;
3589 abt_iocb->req_que_no = aio->u.abt.req_que_no;
3590 /* Send the command to the firmware */
3591 wmb();
3592 }
3593
3594 static void
3595 qla2x00_mb_iocb(srb_t *sp, struct mbx_24xx_entry *mbx)
3596 {
3597 int i, sz;
3598
3599 mbx->entry_type = MBX_IOCB_TYPE;
3600 mbx->handle = sp->handle;
3601 sz = min(ARRAY_SIZE(mbx->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.out_mb));
3602
3603 for (i = 0; i < sz; i++)
3604 mbx->mb[i] = sp->u.iocb_cmd.u.mbx.out_mb[i];
3605 }
3606
3607 static void
3608 qla2x00_ctpthru_cmd_iocb(srb_t *sp, struct ct_entry_24xx *ct_pkt)
3609 {
3610 sp->u.iocb_cmd.u.ctarg.iocb = ct_pkt;
3611 qla24xx_prep_ms_iocb(sp->vha, &sp->u.iocb_cmd.u.ctarg);
3612 ct_pkt->handle = sp->handle;
3613 }
3614
3615 static void qla2x00_send_notify_ack_iocb(srb_t *sp,
3616 struct nack_to_isp *nack)
3617 {
3618 struct imm_ntfy_from_isp *ntfy = sp->u.iocb_cmd.u.nack.ntfy;
3619
3620 nack->entry_type = NOTIFY_ACK_TYPE;
3621 nack->entry_count = 1;
3622 nack->ox_id = ntfy->ox_id;
3623
3624 nack->u.isp24.handle = sp->handle;
3625 nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle;
3626 if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) {
3627 nack->u.isp24.flags = ntfy->u.isp24.flags &
3628 cpu_to_le16(NOTIFY24XX_FLAGS_PUREX_IOCB);
3629 }
3630 nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id;
3631 nack->u.isp24.status = ntfy->u.isp24.status;
3632 nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode;
3633 nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle;
3634 nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address;
3635 nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs;
3636 nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui;
3637 nack->u.isp24.srr_flags = 0;
3638 nack->u.isp24.srr_reject_code = 0;
3639 nack->u.isp24.srr_reject_code_expl = 0;
3640 nack->u.isp24.vp_index = ntfy->u.isp24.vp_index;
3641 }
3642
3643 /*
3644 * Build NVME LS request
3645 */
3646 static void
3647 qla_nvme_ls(srb_t *sp, struct pt_ls4_request *cmd_pkt)
3648 {
3649 struct srb_iocb *nvme;
3650
3651 nvme = &sp->u.iocb_cmd;
3652 cmd_pkt->entry_type = PT_LS4_REQUEST;
3653 cmd_pkt->entry_count = 1;
3654 cmd_pkt->control_flags = cpu_to_le16(CF_LS4_ORIGINATOR << CF_LS4_SHIFT);
3655
3656 cmd_pkt->timeout = cpu_to_le16(nvme->u.nvme.timeout_sec);
3657 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
3658 cmd_pkt->vp_index = sp->fcport->vha->vp_idx;
3659
3660 cmd_pkt->tx_dseg_count = cpu_to_le16(1);
3661 cmd_pkt->tx_byte_count = cpu_to_le32(nvme->u.nvme.cmd_len);
3662 cmd_pkt->dsd[0].length = cpu_to_le32(nvme->u.nvme.cmd_len);
3663 put_unaligned_le64(nvme->u.nvme.cmd_dma, &cmd_pkt->dsd[0].address);
3664
3665 cmd_pkt->rx_dseg_count = cpu_to_le16(1);
3666 cmd_pkt->rx_byte_count = cpu_to_le32(nvme->u.nvme.rsp_len);
3667 cmd_pkt->dsd[1].length = cpu_to_le32(nvme->u.nvme.rsp_len);
3668 put_unaligned_le64(nvme->u.nvme.rsp_dma, &cmd_pkt->dsd[1].address);
3669 }
3670
3671 static void
3672 qla25xx_ctrlvp_iocb(srb_t *sp, struct vp_ctrl_entry_24xx *vce)
3673 {
3674 int map, pos;
3675
3676 vce->entry_type = VP_CTRL_IOCB_TYPE;
3677 vce->handle = sp->handle;
3678 vce->entry_count = 1;
3679 vce->command = cpu_to_le16(sp->u.iocb_cmd.u.ctrlvp.cmd);
3680 vce->vp_count = cpu_to_le16(1);
3681
3682 /*
3683 * index map in firmware starts with 1; decrement index
3684 * this is ok as we never use index 0
3685 */
3686 map = (sp->u.iocb_cmd.u.ctrlvp.vp_index - 1) / 8;
3687 pos = (sp->u.iocb_cmd.u.ctrlvp.vp_index - 1) & 7;
3688 vce->vp_idx_map[map] |= 1 << pos;
3689 }
3690
3691 static void
3692 qla24xx_prlo_iocb(srb_t *sp, struct logio_entry_24xx *logio)
3693 {
3694 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
3695 logio->control_flags =
3696 cpu_to_le16(LCF_COMMAND_PRLO|LCF_IMPL_PRLO);
3697
3698 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
3699 logio->port_id[0] = sp->fcport->d_id.b.al_pa;
3700 logio->port_id[1] = sp->fcport->d_id.b.area;
3701 logio->port_id[2] = sp->fcport->d_id.b.domain;
3702 logio->vp_index = sp->fcport->vha->vp_idx;
3703 }
3704
3705 int
3706 qla2x00_start_sp(srb_t *sp)
3707 {
3708 int rval = QLA_SUCCESS;
3709 scsi_qla_host_t *vha = sp->vha;
3710 struct qla_hw_data *ha = vha->hw;
3711 struct qla_qpair *qp = sp->qpair;
3712 void *pkt;
3713 unsigned long flags;
3714
3715 spin_lock_irqsave(qp->qp_lock_ptr, flags);
3716 pkt = __qla2x00_alloc_iocbs(sp->qpair, sp);
3717 if (!pkt) {
3718 rval = EAGAIN;
3719 ql_log(ql_log_warn, vha, 0x700c,
3720 "qla2x00_alloc_iocbs failed.\n");
3721 goto done;
3722 }
3723
3724 switch (sp->type) {
3725 case SRB_LOGIN_CMD:
3726 IS_FWI2_CAPABLE(ha) ?
3727 qla24xx_login_iocb(sp, pkt) :
3728 qla2x00_login_iocb(sp, pkt);
3729 break;
3730 case SRB_PRLI_CMD:
3731 qla24xx_prli_iocb(sp, pkt);
3732 break;
3733 case SRB_LOGOUT_CMD:
3734 IS_FWI2_CAPABLE(ha) ?
3735 qla24xx_logout_iocb(sp, pkt) :
3736 qla2x00_logout_iocb(sp, pkt);
3737 break;
3738 case SRB_ELS_CMD_RPT:
3739 case SRB_ELS_CMD_HST:
3740 qla24xx_els_iocb(sp, pkt);
3741 break;
3742 case SRB_CT_CMD:
3743 IS_FWI2_CAPABLE(ha) ?
3744 qla24xx_ct_iocb(sp, pkt) :
3745 qla2x00_ct_iocb(sp, pkt);
3746 break;
3747 case SRB_ADISC_CMD:
3748 IS_FWI2_CAPABLE(ha) ?
3749 qla24xx_adisc_iocb(sp, pkt) :
3750 qla2x00_adisc_iocb(sp, pkt);
3751 break;
3752 case SRB_TM_CMD:
3753 IS_QLAFX00(ha) ?
3754 qlafx00_tm_iocb(sp, pkt) :
3755 qla24xx_tm_iocb(sp, pkt);
3756 break;
3757 case SRB_FXIOCB_DCMD:
3758 case SRB_FXIOCB_BCMD:
3759 qlafx00_fxdisc_iocb(sp, pkt);
3760 break;
3761 case SRB_NVME_LS:
3762 qla_nvme_ls(sp, pkt);
3763 break;
3764 case SRB_ABT_CMD:
3765 IS_QLAFX00(ha) ?
3766 qlafx00_abort_iocb(sp, pkt) :
3767 qla24xx_abort_iocb(sp, pkt);
3768 break;
3769 case SRB_ELS_DCMD:
3770 qla24xx_els_logo_iocb(sp, pkt);
3771 break;
3772 case SRB_CT_PTHRU_CMD:
3773 qla2x00_ctpthru_cmd_iocb(sp, pkt);
3774 break;
3775 case SRB_MB_IOCB:
3776 qla2x00_mb_iocb(sp, pkt);
3777 break;
3778 case SRB_NACK_PLOGI:
3779 case SRB_NACK_PRLI:
3780 case SRB_NACK_LOGO:
3781 qla2x00_send_notify_ack_iocb(sp, pkt);
3782 break;
3783 case SRB_CTRL_VP:
3784 qla25xx_ctrlvp_iocb(sp, pkt);
3785 break;
3786 case SRB_PRLO_CMD:
3787 qla24xx_prlo_iocb(sp, pkt);
3788 break;
3789 default:
3790 break;
3791 }
3792
3793 if (sp->start_timer)
3794 add_timer(&sp->u.iocb_cmd.timer);
3795
3796 wmb();
3797 qla2x00_start_iocbs(vha, qp->req);
3798 done:
3799 spin_unlock_irqrestore(qp->qp_lock_ptr, flags);
3800 return rval;
3801 }
3802
3803 static void
3804 qla25xx_build_bidir_iocb(srb_t *sp, struct scsi_qla_host *vha,
3805 struct cmd_bidir *cmd_pkt, uint32_t tot_dsds)
3806 {
3807 uint16_t avail_dsds;
3808 struct dsd64 *cur_dsd;
3809 uint32_t req_data_len = 0;
3810 uint32_t rsp_data_len = 0;
3811 struct scatterlist *sg;
3812 int index;
3813 int entry_count = 1;
3814 struct bsg_job *bsg_job = sp->u.bsg_job;
3815
3816 /*Update entry type to indicate bidir command */
3817 put_unaligned_le32(COMMAND_BIDIRECTIONAL, &cmd_pkt->entry_type);
3818
3819 /* Set the transfer direction, in this set both flags
3820 * Also set the BD_WRAP_BACK flag, firmware will take care
3821 * assigning DID=SID for outgoing pkts.
3822 */
3823 cmd_pkt->wr_dseg_count = cpu_to_le16(bsg_job->request_payload.sg_cnt);
3824 cmd_pkt->rd_dseg_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt);
3825 cmd_pkt->control_flags = cpu_to_le16(BD_WRITE_DATA | BD_READ_DATA |
3826 BD_WRAP_BACK);
3827
3828 req_data_len = rsp_data_len = bsg_job->request_payload.payload_len;
3829 cmd_pkt->wr_byte_count = cpu_to_le32(req_data_len);
3830 cmd_pkt->rd_byte_count = cpu_to_le32(rsp_data_len);
3831 cmd_pkt->timeout = cpu_to_le16(qla2x00_get_async_timeout(vha) + 2);
3832
3833 vha->bidi_stats.transfer_bytes += req_data_len;
3834 vha->bidi_stats.io_count++;
3835
3836 vha->qla_stats.output_bytes += req_data_len;
3837 vha->qla_stats.output_requests++;
3838
3839 /* Only one dsd is available for bidirectional IOCB, remaining dsds
3840 * are bundled in continuation iocb
3841 */
3842 avail_dsds = 1;
3843 cur_dsd = &cmd_pkt->fcp_dsd;
3844
3845 index = 0;
3846
3847 for_each_sg(bsg_job->request_payload.sg_list, sg,
3848 bsg_job->request_payload.sg_cnt, index) {
3849 cont_a64_entry_t *cont_pkt;
3850
3851 /* Allocate additional continuation packets */
3852 if (avail_dsds == 0) {
3853 /* Continuation type 1 IOCB can accomodate
3854 * 5 DSDS
3855 */
3856 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req);
3857 cur_dsd = cont_pkt->dsd;
3858 avail_dsds = 5;
3859 entry_count++;
3860 }
3861 append_dsd64(&cur_dsd, sg);
3862 avail_dsds--;
3863 }
3864 /* For read request DSD will always goes to continuation IOCB
3865 * and follow the write DSD. If there is room on the current IOCB
3866 * then it is added to that IOCB else new continuation IOCB is
3867 * allocated.
3868 */
3869 for_each_sg(bsg_job->reply_payload.sg_list, sg,
3870 bsg_job->reply_payload.sg_cnt, index) {
3871 cont_a64_entry_t *cont_pkt;
3872
3873 /* Allocate additional continuation packets */
3874 if (avail_dsds == 0) {
3875 /* Continuation type 1 IOCB can accomodate
3876 * 5 DSDS
3877 */
3878 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req);
3879 cur_dsd = cont_pkt->dsd;
3880 avail_dsds = 5;
3881 entry_count++;
3882 }
3883 append_dsd64(&cur_dsd, sg);
3884 avail_dsds--;
3885 }
3886 /* This value should be same as number of IOCB required for this cmd */
3887 cmd_pkt->entry_count = entry_count;
3888 }
3889
3890 int
3891 qla2x00_start_bidir(srb_t *sp, struct scsi_qla_host *vha, uint32_t tot_dsds)
3892 {
3893
3894 struct qla_hw_data *ha = vha->hw;
3895 unsigned long flags;
3896 uint32_t handle;
3897 uint16_t req_cnt;
3898 uint16_t cnt;
3899 uint32_t *clr_ptr;
3900 struct cmd_bidir *cmd_pkt = NULL;
3901 struct rsp_que *rsp;
3902 struct req_que *req;
3903 int rval = EXT_STATUS_OK;
3904
3905 rval = QLA_SUCCESS;
3906
3907 rsp = ha->rsp_q_map[0];
3908 req = vha->req;
3909
3910 /* Send marker if required */
3911 if (vha->marker_needed != 0) {
3912 if (qla2x00_marker(vha, ha->base_qpair,
3913 0, 0, MK_SYNC_ALL) != QLA_SUCCESS)
3914 return EXT_STATUS_MAILBOX;
3915 vha->marker_needed = 0;
3916 }
3917
3918 /* Acquire ring specific lock */
3919 spin_lock_irqsave(&ha->hardware_lock, flags);
3920
3921 handle = qla2xxx_get_next_handle(req);
3922 if (handle == 0) {
3923 rval = EXT_STATUS_BUSY;
3924 goto queuing_error;
3925 }
3926
3927 /* Calculate number of IOCB required */
3928 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
3929
3930 /* Check for room on request queue. */
3931 if (req->cnt < req_cnt + 2) {
3932 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
3933 rd_reg_dword_relaxed(req->req_q_out);
3934 if (req->ring_index < cnt)
3935 req->cnt = cnt - req->ring_index;
3936 else
3937 req->cnt = req->length -
3938 (req->ring_index - cnt);
3939 }
3940 if (req->cnt < req_cnt + 2) {
3941 rval = EXT_STATUS_BUSY;
3942 goto queuing_error;
3943 }
3944
3945 cmd_pkt = (struct cmd_bidir *)req->ring_ptr;
3946 cmd_pkt->handle = make_handle(req->id, handle);
3947
3948 /* Zero out remaining portion of packet. */
3949 /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/
3950 clr_ptr = (uint32_t *)cmd_pkt + 2;
3951 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
3952
3953 /* Set NPORT-ID (of vha)*/
3954 cmd_pkt->nport_handle = cpu_to_le16(vha->self_login_loop_id);
3955 cmd_pkt->port_id[0] = vha->d_id.b.al_pa;
3956 cmd_pkt->port_id[1] = vha->d_id.b.area;
3957 cmd_pkt->port_id[2] = vha->d_id.b.domain;
3958
3959 qla25xx_build_bidir_iocb(sp, vha, cmd_pkt, tot_dsds);
3960 cmd_pkt->entry_status = (uint8_t) rsp->id;
3961 /* Build command packet. */
3962 req->current_outstanding_cmd = handle;
3963 req->outstanding_cmds[handle] = sp;
3964 sp->handle = handle;
3965 req->cnt -= req_cnt;
3966
3967 /* Send the command to the firmware */
3968 wmb();
3969 qla2x00_start_iocbs(vha, req);
3970 queuing_error:
3971 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3972 return rval;
3973 }
Linux with added FPC-III support