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scsi: qla2xxx: Move {get|rel}_sp to base_qpair struct
[linux/fpc-iii.git] / drivers / scsi / qla2xxx / qla_iocb.c
blob6335b8ce5fbdaa7cb982d497830665f59f71d4c9
1 /*
2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2014 QLogic Corporation
4 *
5 * See LICENSE.qla2xxx for copyright and licensing details.
6 */
7 #include "qla_def.h"
8 #include "qla_target.h"
9
10 #include <linux/blkdev.h>
11 #include <linux/delay.h>
12
13 #include <scsi/scsi_tcq.h>
14
15 /**
16 * qla2x00_get_cmd_direction() - Determine control_flag data direction.
17 * @sp: SCSI command
18 *
19 * Returns the proper CF_* direction based on CDB.
20 */
21 static inline uint16_t
22 qla2x00_get_cmd_direction(srb_t *sp)
23 {
24 uint16_t cflags;
25 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
26 struct scsi_qla_host *vha = sp->vha;
27
28 cflags = 0;
29
30 /* Set transfer direction */
31 if (cmd->sc_data_direction == DMA_TO_DEVICE) {
32 cflags = CF_WRITE;
33 vha->qla_stats.output_bytes += scsi_bufflen(cmd);
34 vha->qla_stats.output_requests++;
35 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
36 cflags = CF_READ;
37 vha->qla_stats.input_bytes += scsi_bufflen(cmd);
38 vha->qla_stats.input_requests++;
39 }
40 return (cflags);
41 }
42
43 /**
44 * qla2x00_calc_iocbs_32() - Determine number of Command Type 2 and
45 * Continuation Type 0 IOCBs to allocate.
46 *
47 * @dsds: number of data segment decriptors needed
48 *
49 * Returns the number of IOCB entries needed to store @dsds.
50 */
51 uint16_t
52 qla2x00_calc_iocbs_32(uint16_t dsds)
53 {
54 uint16_t iocbs;
55
56 iocbs = 1;
57 if (dsds > 3) {
58 iocbs += (dsds - 3) / 7;
59 if ((dsds - 3) % 7)
60 iocbs++;
61 }
62 return (iocbs);
63 }
64
65 /**
66 * qla2x00_calc_iocbs_64() - Determine number of Command Type 3 and
67 * Continuation Type 1 IOCBs to allocate.
68 *
69 * @dsds: number of data segment decriptors needed
70 *
71 * Returns the number of IOCB entries needed to store @dsds.
72 */
73 uint16_t
74 qla2x00_calc_iocbs_64(uint16_t dsds)
75 {
76 uint16_t iocbs;
77
78 iocbs = 1;
79 if (dsds > 2) {
80 iocbs += (dsds - 2) / 5;
81 if ((dsds - 2) % 5)
82 iocbs++;
83 }
84 return (iocbs);
85 }
86
87 /**
88 * qla2x00_prep_cont_type0_iocb() - Initialize a Continuation Type 0 IOCB.
89 * @vha: HA context
90 *
91 * Returns a pointer to the Continuation Type 0 IOCB packet.
92 */
93 static inline cont_entry_t *
94 qla2x00_prep_cont_type0_iocb(struct scsi_qla_host *vha)
95 {
96 cont_entry_t *cont_pkt;
97 struct req_que *req = vha->req;
98 /* Adjust ring index. */
99 req->ring_index++;
100 if (req->ring_index == req->length) {
101 req->ring_index = 0;
102 req->ring_ptr = req->ring;
103 } else {
104 req->ring_ptr++;
105 }
106
107 cont_pkt = (cont_entry_t *)req->ring_ptr;
108
109 /* Load packet defaults. */
110 *((uint32_t *)(&cont_pkt->entry_type)) = cpu_to_le32(CONTINUE_TYPE);
111
112 return (cont_pkt);
113 }
114
115 /**
116 * qla2x00_prep_cont_type1_iocb() - Initialize a Continuation Type 1 IOCB.
117 * @vha: HA context
118 * @req: request queue
119 *
120 * Returns a pointer to the continuation type 1 IOCB packet.
121 */
122 static inline cont_a64_entry_t *
123 qla2x00_prep_cont_type1_iocb(scsi_qla_host_t *vha, struct req_que *req)
124 {
125 cont_a64_entry_t *cont_pkt;
126
127 /* Adjust ring index. */
128 req->ring_index++;
129 if (req->ring_index == req->length) {
130 req->ring_index = 0;
131 req->ring_ptr = req->ring;
132 } else {
133 req->ring_ptr++;
134 }
135
136 cont_pkt = (cont_a64_entry_t *)req->ring_ptr;
137
138 /* Load packet defaults. */
139 *((uint32_t *)(&cont_pkt->entry_type)) = IS_QLAFX00(vha->hw) ?
140 cpu_to_le32(CONTINUE_A64_TYPE_FX00) :
141 cpu_to_le32(CONTINUE_A64_TYPE);
142
143 return (cont_pkt);
144 }
145
146 inline int
147 qla24xx_configure_prot_mode(srb_t *sp, uint16_t *fw_prot_opts)
148 {
149 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
150 uint8_t guard = scsi_host_get_guard(cmd->device->host);
151
152 /* We always use DIFF Bundling for best performance */
153 *fw_prot_opts = 0;
154
155 /* Translate SCSI opcode to a protection opcode */
156 switch (scsi_get_prot_op(cmd)) {
157 case SCSI_PROT_READ_STRIP:
158 *fw_prot_opts |= PO_MODE_DIF_REMOVE;
159 break;
160 case SCSI_PROT_WRITE_INSERT:
161 *fw_prot_opts |= PO_MODE_DIF_INSERT;
162 break;
163 case SCSI_PROT_READ_INSERT:
164 *fw_prot_opts |= PO_MODE_DIF_INSERT;
165 break;
166 case SCSI_PROT_WRITE_STRIP:
167 *fw_prot_opts |= PO_MODE_DIF_REMOVE;
168 break;
169 case SCSI_PROT_READ_PASS:
170 case SCSI_PROT_WRITE_PASS:
171 if (guard & SHOST_DIX_GUARD_IP)
172 *fw_prot_opts |= PO_MODE_DIF_TCP_CKSUM;
173 else
174 *fw_prot_opts |= PO_MODE_DIF_PASS;
175 break;
176 default: /* Normal Request */
177 *fw_prot_opts |= PO_MODE_DIF_PASS;
178 break;
179 }
180
181 return scsi_prot_sg_count(cmd);
182 }
183
184 /*
185 * qla2x00_build_scsi_iocbs_32() - Build IOCB command utilizing 32bit
186 * capable IOCB types.
187 *
188 * @sp: SRB command to process
189 * @cmd_pkt: Command type 2 IOCB
190 * @tot_dsds: Total number of segments to transfer
191 */
192 void qla2x00_build_scsi_iocbs_32(srb_t *sp, cmd_entry_t *cmd_pkt,
193 uint16_t tot_dsds)
194 {
195 uint16_t avail_dsds;
196 uint32_t *cur_dsd;
197 scsi_qla_host_t *vha;
198 struct scsi_cmnd *cmd;
199 struct scatterlist *sg;
200 int i;
201
202 cmd = GET_CMD_SP(sp);
203
204 /* Update entry type to indicate Command Type 2 IOCB */
205 *((uint32_t *)(&cmd_pkt->entry_type)) =
206 cpu_to_le32(COMMAND_TYPE);
207
208 /* No data transfer */
209 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
210 cmd_pkt->byte_count = cpu_to_le32(0);
211 return;
212 }
213
214 vha = sp->vha;
215 cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp));
216
217 /* Three DSDs are available in the Command Type 2 IOCB */
218 avail_dsds = 3;
219 cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address;
220
221 /* Load data segments */
222 scsi_for_each_sg(cmd, sg, tot_dsds, i) {
223 cont_entry_t *cont_pkt;
224
225 /* Allocate additional continuation packets? */
226 if (avail_dsds == 0) {
227 /*
228 * Seven DSDs are available in the Continuation
229 * Type 0 IOCB.
230 */
231 cont_pkt = qla2x00_prep_cont_type0_iocb(vha);
232 cur_dsd = (uint32_t *)&cont_pkt->dseg_0_address;
233 avail_dsds = 7;
234 }
235
236 *cur_dsd++ = cpu_to_le32(sg_dma_address(sg));
237 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
238 avail_dsds--;
239 }
240 }
241
242 /**
243 * qla2x00_build_scsi_iocbs_64() - Build IOCB command utilizing 64bit
244 * capable IOCB types.
245 *
246 * @sp: SRB command to process
247 * @cmd_pkt: Command type 3 IOCB
248 * @tot_dsds: Total number of segments to transfer
249 */
250 void qla2x00_build_scsi_iocbs_64(srb_t *sp, cmd_entry_t *cmd_pkt,
251 uint16_t tot_dsds)
252 {
253 uint16_t avail_dsds;
254 uint32_t *cur_dsd;
255 scsi_qla_host_t *vha;
256 struct scsi_cmnd *cmd;
257 struct scatterlist *sg;
258 int i;
259
260 cmd = GET_CMD_SP(sp);
261
262 /* Update entry type to indicate Command Type 3 IOCB */
263 *((uint32_t *)(&cmd_pkt->entry_type)) = cpu_to_le32(COMMAND_A64_TYPE);
264
265 /* No data transfer */
266 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
267 cmd_pkt->byte_count = cpu_to_le32(0);
268 return;
269 }
270
271 vha = sp->vha;
272 cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp));
273
274 /* Two DSDs are available in the Command Type 3 IOCB */
275 avail_dsds = 2;
276 cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address;
277
278 /* Load data segments */
279 scsi_for_each_sg(cmd, sg, tot_dsds, i) {
280 dma_addr_t sle_dma;
281 cont_a64_entry_t *cont_pkt;
282
283 /* Allocate additional continuation packets? */
284 if (avail_dsds == 0) {
285 /*
286 * Five DSDs are available in the Continuation
287 * Type 1 IOCB.
288 */
289 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req);
290 cur_dsd = (uint32_t *)cont_pkt->dseg_0_address;
291 avail_dsds = 5;
292 }
293
294 sle_dma = sg_dma_address(sg);
295 *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
296 *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
297 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
298 avail_dsds--;
299 }
300 }
301
302 /**
303 * qla2x00_start_scsi() - Send a SCSI command to the ISP
304 * @sp: command to send to the ISP
305 *
306 * Returns non-zero if a failure occurred, else zero.
307 */
308 int
309 qla2x00_start_scsi(srb_t *sp)
310 {
311 int nseg;
312 unsigned long flags;
313 scsi_qla_host_t *vha;
314 struct scsi_cmnd *cmd;
315 uint32_t *clr_ptr;
316 uint32_t index;
317 uint32_t handle;
318 cmd_entry_t *cmd_pkt;
319 uint16_t cnt;
320 uint16_t req_cnt;
321 uint16_t tot_dsds;
322 struct device_reg_2xxx __iomem *reg;
323 struct qla_hw_data *ha;
324 struct req_que *req;
325 struct rsp_que *rsp;
326
327 /* Setup device pointers. */
328 vha = sp->vha;
329 ha = vha->hw;
330 reg = &ha->iobase->isp;
331 cmd = GET_CMD_SP(sp);
332 req = ha->req_q_map[0];
333 rsp = ha->rsp_q_map[0];
334 /* So we know we haven't pci_map'ed anything yet */
335 tot_dsds = 0;
336
337 /* Send marker if required */
338 if (vha->marker_needed != 0) {
339 if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) !=
340 QLA_SUCCESS) {
341 return (QLA_FUNCTION_FAILED);
342 }
343 vha->marker_needed = 0;
344 }
345
346 /* Acquire ring specific lock */
347 spin_lock_irqsave(&ha->hardware_lock, flags);
348
349 /* Check for room in outstanding command list. */
350 handle = req->current_outstanding_cmd;
351 for (index = 1; index < req->num_outstanding_cmds; index++) {
352 handle++;
353 if (handle == req->num_outstanding_cmds)
354 handle = 1;
355 if (!req->outstanding_cmds[handle])
356 break;
357 }
358 if (index == req->num_outstanding_cmds)
359 goto queuing_error;
360
361 /* Map the sg table so we have an accurate count of sg entries needed */
362 if (scsi_sg_count(cmd)) {
363 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
364 scsi_sg_count(cmd), cmd->sc_data_direction);
365 if (unlikely(!nseg))
366 goto queuing_error;
367 } else
368 nseg = 0;
369
370 tot_dsds = nseg;
371
372 /* Calculate the number of request entries needed. */
373 req_cnt = ha->isp_ops->calc_req_entries(tot_dsds);
374 if (req->cnt < (req_cnt + 2)) {
375 cnt = RD_REG_WORD_RELAXED(ISP_REQ_Q_OUT(ha, reg));
376 if (req->ring_index < cnt)
377 req->cnt = cnt - req->ring_index;
378 else
379 req->cnt = req->length -
380 (req->ring_index - cnt);
381 /* If still no head room then bail out */
382 if (req->cnt < (req_cnt + 2))
383 goto queuing_error;
384 }
385
386 /* Build command packet */
387 req->current_outstanding_cmd = handle;
388 req->outstanding_cmds[handle] = sp;
389 sp->handle = handle;
390 cmd->host_scribble = (unsigned char *)(unsigned long)handle;
391 req->cnt -= req_cnt;
392
393 cmd_pkt = (cmd_entry_t *)req->ring_ptr;
394 cmd_pkt->handle = handle;
395 /* Zero out remaining portion of packet. */
396 clr_ptr = (uint32_t *)cmd_pkt + 2;
397 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
398 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
399
400 /* Set target ID and LUN number*/
401 SET_TARGET_ID(ha, cmd_pkt->target, sp->fcport->loop_id);
402 cmd_pkt->lun = cpu_to_le16(cmd->device->lun);
403 cmd_pkt->control_flags = cpu_to_le16(CF_SIMPLE_TAG);
404
405 /* Load SCSI command packet. */
406 memcpy(cmd_pkt->scsi_cdb, cmd->cmnd, cmd->cmd_len);
407 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
408
409 /* Build IOCB segments */
410 ha->isp_ops->build_iocbs(sp, cmd_pkt, tot_dsds);
411
412 /* Set total data segment count. */
413 cmd_pkt->entry_count = (uint8_t)req_cnt;
414 wmb();
415
416 /* Adjust ring index. */
417 req->ring_index++;
418 if (req->ring_index == req->length) {
419 req->ring_index = 0;
420 req->ring_ptr = req->ring;
421 } else
422 req->ring_ptr++;
423
424 sp->flags |= SRB_DMA_VALID;
425
426 /* Set chip new ring index. */
427 WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), req->ring_index);
428 RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, reg)); /* PCI Posting. */
429
430 /* Manage unprocessed RIO/ZIO commands in response queue. */
431 if (vha->flags.process_response_queue &&
432 rsp->ring_ptr->signature != RESPONSE_PROCESSED)
433 qla2x00_process_response_queue(rsp);
434
435 spin_unlock_irqrestore(&ha->hardware_lock, flags);
436 return (QLA_SUCCESS);
437
438 queuing_error:
439 if (tot_dsds)
440 scsi_dma_unmap(cmd);
441
442 spin_unlock_irqrestore(&ha->hardware_lock, flags);
443
444 return (QLA_FUNCTION_FAILED);
445 }
446
447 /**
448 * qla2x00_start_iocbs() - Execute the IOCB command
449 * @vha: HA context
450 * @req: request queue
451 */
452 void
453 qla2x00_start_iocbs(struct scsi_qla_host *vha, struct req_que *req)
454 {
455 struct qla_hw_data *ha = vha->hw;
456 device_reg_t *reg = ISP_QUE_REG(ha, req->id);
457
458 if (IS_P3P_TYPE(ha)) {
459 qla82xx_start_iocbs(vha);
460 } else {
461 /* Adjust ring index. */
462 req->ring_index++;
463 if (req->ring_index == req->length) {
464 req->ring_index = 0;
465 req->ring_ptr = req->ring;
466 } else
467 req->ring_ptr++;
468
469 /* Set chip new ring index. */
470 if (ha->mqenable || IS_QLA27XX(ha)) {
471 WRT_REG_DWORD(req->req_q_in, req->ring_index);
472 } else if (IS_QLA83XX(ha)) {
473 WRT_REG_DWORD(req->req_q_in, req->ring_index);
474 RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr);
475 } else if (IS_QLAFX00(ha)) {
476 WRT_REG_DWORD(&reg->ispfx00.req_q_in, req->ring_index);
477 RD_REG_DWORD_RELAXED(&reg->ispfx00.req_q_in);
478 QLAFX00_SET_HST_INTR(ha, ha->rqstq_intr_code);
479 } else if (IS_FWI2_CAPABLE(ha)) {
480 WRT_REG_DWORD(&reg->isp24.req_q_in, req->ring_index);
481 RD_REG_DWORD_RELAXED(&reg->isp24.req_q_in);
482 } else {
483 WRT_REG_WORD(ISP_REQ_Q_IN(ha, &reg->isp),
484 req->ring_index);
485 RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, &reg->isp));
486 }
487 }
488 }
489
490 /**
491 * qla2x00_marker() - Send a marker IOCB to the firmware.
492 * @vha: HA context
493 * @req: request queue
494 * @rsp: response queue
495 * @loop_id: loop ID
496 * @lun: LUN
497 * @type: marker modifier
498 *
499 * Can be called from both normal and interrupt context.
500 *
501 * Returns non-zero if a failure occurred, else zero.
502 */
503 static int
504 __qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req,
505 struct rsp_que *rsp, uint16_t loop_id,
506 uint64_t lun, uint8_t type)
507 {
508 mrk_entry_t *mrk;
509 struct mrk_entry_24xx *mrk24 = NULL;
510
511 struct qla_hw_data *ha = vha->hw;
512 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
513
514 req = ha->req_q_map[0];
515 mrk = (mrk_entry_t *)qla2x00_alloc_iocbs(vha, 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 req_que *req,
547 struct rsp_que *rsp, uint16_t loop_id, uint64_t lun,
548 uint8_t type)
549 {
550 int ret;
551 unsigned long flags = 0;
552
553 spin_lock_irqsave(&vha->hw->hardware_lock, flags);
554 ret = __qla2x00_marker(vha, req, rsp, loop_id, lun, type);
555 spin_unlock_irqrestore(&vha->hw->hardware_lock, flags);
556
557 return (ret);
558 }
559
560 /*
561 * qla2x00_issue_marker
562 *
563 * Issue marker
564 * Caller CAN have hardware lock held as specified by ha_locked parameter.
565 * Might release it, then reaquire.
566 */
567 int qla2x00_issue_marker(scsi_qla_host_t *vha, int ha_locked)
568 {
569 if (ha_locked) {
570 if (__qla2x00_marker(vha, vha->req, vha->req->rsp, 0, 0,
571 MK_SYNC_ALL) != QLA_SUCCESS)
572 return QLA_FUNCTION_FAILED;
573 } else {
574 if (qla2x00_marker(vha, vha->req, vha->req->rsp, 0, 0,
575 MK_SYNC_ALL) != QLA_SUCCESS)
576 return QLA_FUNCTION_FAILED;
577 }
578 vha->marker_needed = 0;
579
580 return QLA_SUCCESS;
581 }
582
583 static inline int
584 qla24xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt,
585 uint16_t tot_dsds)
586 {
587 uint32_t *cur_dsd = NULL;
588 scsi_qla_host_t *vha;
589 struct qla_hw_data *ha;
590 struct scsi_cmnd *cmd;
591 struct scatterlist *cur_seg;
592 uint32_t *dsd_seg;
593 void *next_dsd;
594 uint8_t avail_dsds;
595 uint8_t first_iocb = 1;
596 uint32_t dsd_list_len;
597 struct dsd_dma *dsd_ptr;
598 struct ct6_dsd *ctx;
599
600 cmd = GET_CMD_SP(sp);
601
602 /* Update entry type to indicate Command Type 3 IOCB */
603 *((uint32_t *)(&cmd_pkt->entry_type)) = cpu_to_le32(COMMAND_TYPE_6);
604
605 /* No data transfer */
606 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
607 cmd_pkt->byte_count = cpu_to_le32(0);
608 return 0;
609 }
610
611 vha = sp->vha;
612 ha = vha->hw;
613
614 /* Set transfer direction */
615 if (cmd->sc_data_direction == DMA_TO_DEVICE) {
616 cmd_pkt->control_flags = cpu_to_le16(CF_WRITE_DATA);
617 vha->qla_stats.output_bytes += scsi_bufflen(cmd);
618 vha->qla_stats.output_requests++;
619 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
620 cmd_pkt->control_flags = cpu_to_le16(CF_READ_DATA);
621 vha->qla_stats.input_bytes += scsi_bufflen(cmd);
622 vha->qla_stats.input_requests++;
623 }
624
625 cur_seg = scsi_sglist(cmd);
626 ctx = GET_CMD_CTX_SP(sp);
627
628 while (tot_dsds) {
629 avail_dsds = (tot_dsds > QLA_DSDS_PER_IOCB) ?
630 QLA_DSDS_PER_IOCB : tot_dsds;
631 tot_dsds -= avail_dsds;
632 dsd_list_len = (avail_dsds + 1) * QLA_DSD_SIZE;
633
634 dsd_ptr = list_first_entry(&ha->gbl_dsd_list,
635 struct dsd_dma, list);
636 next_dsd = dsd_ptr->dsd_addr;
637 list_del(&dsd_ptr->list);
638 ha->gbl_dsd_avail--;
639 list_add_tail(&dsd_ptr->list, &ctx->dsd_list);
640 ctx->dsd_use_cnt++;
641 ha->gbl_dsd_inuse++;
642
643 if (first_iocb) {
644 first_iocb = 0;
645 dsd_seg = (uint32_t *)&cmd_pkt->fcp_data_dseg_address;
646 *dsd_seg++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
647 *dsd_seg++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
648 cmd_pkt->fcp_data_dseg_len = cpu_to_le32(dsd_list_len);
649 } else {
650 *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
651 *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
652 *cur_dsd++ = cpu_to_le32(dsd_list_len);
653 }
654 cur_dsd = (uint32_t *)next_dsd;
655 while (avail_dsds) {
656 dma_addr_t sle_dma;
657
658 sle_dma = sg_dma_address(cur_seg);
659 *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
660 *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
661 *cur_dsd++ = cpu_to_le32(sg_dma_len(cur_seg));
662 cur_seg = sg_next(cur_seg);
663 avail_dsds--;
664 }
665 }
666
667 /* Null termination */
668 *cur_dsd++ = 0;
669 *cur_dsd++ = 0;
670 *cur_dsd++ = 0;
671 cmd_pkt->control_flags |= CF_DATA_SEG_DESCR_ENABLE;
672 return 0;
673 }
674
675 /*
676 * qla24xx_calc_dsd_lists() - Determine number of DSD list required
677 * for Command Type 6.
678 *
679 * @dsds: number of data segment decriptors needed
680 *
681 * Returns the number of dsd list needed to store @dsds.
682 */
683 static inline uint16_t
684 qla24xx_calc_dsd_lists(uint16_t dsds)
685 {
686 uint16_t dsd_lists = 0;
687
688 dsd_lists = (dsds/QLA_DSDS_PER_IOCB);
689 if (dsds % QLA_DSDS_PER_IOCB)
690 dsd_lists++;
691 return dsd_lists;
692 }
693
694
695 /**
696 * qla24xx_build_scsi_iocbs() - Build IOCB command utilizing Command Type 7
697 * IOCB types.
698 *
699 * @sp: SRB command to process
700 * @cmd_pkt: Command type 3 IOCB
701 * @tot_dsds: Total number of segments to transfer
702 * @req: pointer to request queue
703 */
704 inline void
705 qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt,
706 uint16_t tot_dsds, struct req_que *req)
707 {
708 uint16_t avail_dsds;
709 uint32_t *cur_dsd;
710 scsi_qla_host_t *vha;
711 struct scsi_cmnd *cmd;
712 struct scatterlist *sg;
713 int i;
714
715 cmd = GET_CMD_SP(sp);
716
717 /* Update entry type to indicate Command Type 3 IOCB */
718 *((uint32_t *)(&cmd_pkt->entry_type)) = cpu_to_le32(COMMAND_TYPE_7);
719
720 /* No data transfer */
721 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
722 cmd_pkt->byte_count = cpu_to_le32(0);
723 return;
724 }
725
726 vha = sp->vha;
727
728 /* Set transfer direction */
729 if (cmd->sc_data_direction == DMA_TO_DEVICE) {
730 cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_WRITE_DATA);
731 vha->qla_stats.output_bytes += scsi_bufflen(cmd);
732 vha->qla_stats.output_requests++;
733 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
734 cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_READ_DATA);
735 vha->qla_stats.input_bytes += scsi_bufflen(cmd);
736 vha->qla_stats.input_requests++;
737 }
738
739 /* One DSD is available in the Command Type 3 IOCB */
740 avail_dsds = 1;
741 cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address;
742
743 /* Load data segments */
744
745 scsi_for_each_sg(cmd, sg, tot_dsds, i) {
746 dma_addr_t sle_dma;
747 cont_a64_entry_t *cont_pkt;
748
749 /* Allocate additional continuation packets? */
750 if (avail_dsds == 0) {
751 /*
752 * Five DSDs are available in the Continuation
753 * Type 1 IOCB.
754 */
755 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, req);
756 cur_dsd = (uint32_t *)cont_pkt->dseg_0_address;
757 avail_dsds = 5;
758 }
759
760 sle_dma = sg_dma_address(sg);
761 *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
762 *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
763 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
764 avail_dsds--;
765 }
766 }
767
768 struct fw_dif_context {
769 uint32_t ref_tag;
770 uint16_t app_tag;
771 uint8_t ref_tag_mask[4]; /* Validation/Replacement Mask*/
772 uint8_t app_tag_mask[2]; /* Validation/Replacement Mask*/
773 };
774
775 /*
776 * qla24xx_set_t10dif_tags_from_cmd - Extract Ref and App tags from SCSI command
777 *
778 */
779 static inline void
780 qla24xx_set_t10dif_tags(srb_t *sp, struct fw_dif_context *pkt,
781 unsigned int protcnt)
782 {
783 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
784
785 switch (scsi_get_prot_type(cmd)) {
786 case SCSI_PROT_DIF_TYPE0:
787 /*
788 * No check for ql2xenablehba_err_chk, as it would be an
789 * I/O error if hba tag generation is not done.
790 */
791 pkt->ref_tag = cpu_to_le32((uint32_t)
792 (0xffffffff & scsi_get_lba(cmd)));
793
794 if (!qla2x00_hba_err_chk_enabled(sp))
795 break;
796
797 pkt->ref_tag_mask[0] = 0xff;
798 pkt->ref_tag_mask[1] = 0xff;
799 pkt->ref_tag_mask[2] = 0xff;
800 pkt->ref_tag_mask[3] = 0xff;
801 break;
802
803 /*
804 * For TYPE 2 protection: 16 bit GUARD + 32 bit REF tag has to
805 * match LBA in CDB + N
806 */
807 case SCSI_PROT_DIF_TYPE2:
808 pkt->app_tag = cpu_to_le16(0);
809 pkt->app_tag_mask[0] = 0x0;
810 pkt->app_tag_mask[1] = 0x0;
811
812 pkt->ref_tag = cpu_to_le32((uint32_t)
813 (0xffffffff & scsi_get_lba(cmd)));
814
815 if (!qla2x00_hba_err_chk_enabled(sp))
816 break;
817
818 /* enable ALL bytes of the ref tag */
819 pkt->ref_tag_mask[0] = 0xff;
820 pkt->ref_tag_mask[1] = 0xff;
821 pkt->ref_tag_mask[2] = 0xff;
822 pkt->ref_tag_mask[3] = 0xff;
823 break;
824
825 /* For Type 3 protection: 16 bit GUARD only */
826 case SCSI_PROT_DIF_TYPE3:
827 pkt->ref_tag_mask[0] = pkt->ref_tag_mask[1] =
828 pkt->ref_tag_mask[2] = pkt->ref_tag_mask[3] =
829 0x00;
830 break;
831
832 /*
833 * For TYpe 1 protection: 16 bit GUARD tag, 32 bit REF tag, and
834 * 16 bit app tag.
835 */
836 case SCSI_PROT_DIF_TYPE1:
837 pkt->ref_tag = cpu_to_le32((uint32_t)
838 (0xffffffff & scsi_get_lba(cmd)));
839 pkt->app_tag = cpu_to_le16(0);
840 pkt->app_tag_mask[0] = 0x0;
841 pkt->app_tag_mask[1] = 0x0;
842
843 if (!qla2x00_hba_err_chk_enabled(sp))
844 break;
845
846 /* enable ALL bytes of the ref tag */
847 pkt->ref_tag_mask[0] = 0xff;
848 pkt->ref_tag_mask[1] = 0xff;
849 pkt->ref_tag_mask[2] = 0xff;
850 pkt->ref_tag_mask[3] = 0xff;
851 break;
852 }
853 }
854
855 int
856 qla24xx_get_one_block_sg(uint32_t blk_sz, struct qla2_sgx *sgx,
857 uint32_t *partial)
858 {
859 struct scatterlist *sg;
860 uint32_t cumulative_partial, sg_len;
861 dma_addr_t sg_dma_addr;
862
863 if (sgx->num_bytes == sgx->tot_bytes)
864 return 0;
865
866 sg = sgx->cur_sg;
867 cumulative_partial = sgx->tot_partial;
868
869 sg_dma_addr = sg_dma_address(sg);
870 sg_len = sg_dma_len(sg);
871
872 sgx->dma_addr = sg_dma_addr + sgx->bytes_consumed;
873
874 if ((cumulative_partial + (sg_len - sgx->bytes_consumed)) >= blk_sz) {
875 sgx->dma_len = (blk_sz - cumulative_partial);
876 sgx->tot_partial = 0;
877 sgx->num_bytes += blk_sz;
878 *partial = 0;
879 } else {
880 sgx->dma_len = sg_len - sgx->bytes_consumed;
881 sgx->tot_partial += sgx->dma_len;
882 *partial = 1;
883 }
884
885 sgx->bytes_consumed += sgx->dma_len;
886
887 if (sg_len == sgx->bytes_consumed) {
888 sg = sg_next(sg);
889 sgx->num_sg++;
890 sgx->cur_sg = sg;
891 sgx->bytes_consumed = 0;
892 }
893
894 return 1;
895 }
896
897 int
898 qla24xx_walk_and_build_sglist_no_difb(struct qla_hw_data *ha, srb_t *sp,
899 uint32_t *dsd, uint16_t tot_dsds, struct qla_tc_param *tc)
900 {
901 void *next_dsd;
902 uint8_t avail_dsds = 0;
903 uint32_t dsd_list_len;
904 struct dsd_dma *dsd_ptr;
905 struct scatterlist *sg_prot;
906 uint32_t *cur_dsd = dsd;
907 uint16_t used_dsds = tot_dsds;
908 uint32_t prot_int; /* protection interval */
909 uint32_t partial;
910 struct qla2_sgx sgx;
911 dma_addr_t sle_dma;
912 uint32_t sle_dma_len, tot_prot_dma_len = 0;
913 struct scsi_cmnd *cmd;
914
915 memset(&sgx, 0, sizeof(struct qla2_sgx));
916 if (sp) {
917 cmd = GET_CMD_SP(sp);
918 prot_int = cmd->device->sector_size;
919
920 sgx.tot_bytes = scsi_bufflen(cmd);
921 sgx.cur_sg = scsi_sglist(cmd);
922 sgx.sp = sp;
923
924 sg_prot = scsi_prot_sglist(cmd);
925 } else if (tc) {
926 prot_int = tc->blk_sz;
927 sgx.tot_bytes = tc->bufflen;
928 sgx.cur_sg = tc->sg;
929 sg_prot = tc->prot_sg;
930 } else {
931 BUG();
932 return 1;
933 }
934
935 while (qla24xx_get_one_block_sg(prot_int, &sgx, &partial)) {
936
937 sle_dma = sgx.dma_addr;
938 sle_dma_len = sgx.dma_len;
939 alloc_and_fill:
940 /* Allocate additional continuation packets? */
941 if (avail_dsds == 0) {
942 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ?
943 QLA_DSDS_PER_IOCB : used_dsds;
944 dsd_list_len = (avail_dsds + 1) * 12;
945 used_dsds -= avail_dsds;
946
947 /* allocate tracking DS */
948 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
949 if (!dsd_ptr)
950 return 1;
951
952 /* allocate new list */
953 dsd_ptr->dsd_addr = next_dsd =
954 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC,
955 &dsd_ptr->dsd_list_dma);
956
957 if (!next_dsd) {
958 /*
959 * Need to cleanup only this dsd_ptr, rest
960 * will be done by sp_free_dma()
961 */
962 kfree(dsd_ptr);
963 return 1;
964 }
965
966 if (sp) {
967 list_add_tail(&dsd_ptr->list,
968 &((struct crc_context *)
969 sp->u.scmd.ctx)->dsd_list);
970
971 sp->flags |= SRB_CRC_CTX_DSD_VALID;
972 } else {
973 list_add_tail(&dsd_ptr->list,
974 &(tc->ctx->dsd_list));
975 *tc->ctx_dsd_alloced = 1;
976 }
977
978
979 /* add new list to cmd iocb or last list */
980 *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
981 *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
982 *cur_dsd++ = dsd_list_len;
983 cur_dsd = (uint32_t *)next_dsd;
984 }
985 *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
986 *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
987 *cur_dsd++ = cpu_to_le32(sle_dma_len);
988 avail_dsds--;
989
990 if (partial == 0) {
991 /* Got a full protection interval */
992 sle_dma = sg_dma_address(sg_prot) + tot_prot_dma_len;
993 sle_dma_len = 8;
994
995 tot_prot_dma_len += sle_dma_len;
996 if (tot_prot_dma_len == sg_dma_len(sg_prot)) {
997 tot_prot_dma_len = 0;
998 sg_prot = sg_next(sg_prot);
999 }
1000
1001 partial = 1; /* So as to not re-enter this block */
1002 goto alloc_and_fill;
1003 }
1004 }
1005 /* Null termination */
1006 *cur_dsd++ = 0;
1007 *cur_dsd++ = 0;
1008 *cur_dsd++ = 0;
1009 return 0;
1010 }
1011
1012 int
1013 qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp, uint32_t *dsd,
1014 uint16_t tot_dsds, struct qla_tc_param *tc)
1015 {
1016 void *next_dsd;
1017 uint8_t avail_dsds = 0;
1018 uint32_t dsd_list_len;
1019 struct dsd_dma *dsd_ptr;
1020 struct scatterlist *sg, *sgl;
1021 uint32_t *cur_dsd = dsd;
1022 int i;
1023 uint16_t used_dsds = tot_dsds;
1024 struct scsi_cmnd *cmd;
1025
1026 if (sp) {
1027 cmd = GET_CMD_SP(sp);
1028 sgl = scsi_sglist(cmd);
1029 } else if (tc) {
1030 sgl = tc->sg;
1031 } else {
1032 BUG();
1033 return 1;
1034 }
1035
1036
1037 for_each_sg(sgl, sg, tot_dsds, i) {
1038 dma_addr_t sle_dma;
1039
1040 /* Allocate additional continuation packets? */
1041 if (avail_dsds == 0) {
1042 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ?
1043 QLA_DSDS_PER_IOCB : used_dsds;
1044 dsd_list_len = (avail_dsds + 1) * 12;
1045 used_dsds -= avail_dsds;
1046
1047 /* allocate tracking DS */
1048 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
1049 if (!dsd_ptr)
1050 return 1;
1051
1052 /* allocate new list */
1053 dsd_ptr->dsd_addr = next_dsd =
1054 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC,
1055 &dsd_ptr->dsd_list_dma);
1056
1057 if (!next_dsd) {
1058 /*
1059 * Need to cleanup only this dsd_ptr, rest
1060 * will be done by sp_free_dma()
1061 */
1062 kfree(dsd_ptr);
1063 return 1;
1064 }
1065
1066 if (sp) {
1067 list_add_tail(&dsd_ptr->list,
1068 &((struct crc_context *)
1069 sp->u.scmd.ctx)->dsd_list);
1070
1071 sp->flags |= SRB_CRC_CTX_DSD_VALID;
1072 } else {
1073 list_add_tail(&dsd_ptr->list,
1074 &(tc->ctx->dsd_list));
1075 *tc->ctx_dsd_alloced = 1;
1076 }
1077
1078 /* add new list to cmd iocb or last list */
1079 *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
1080 *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
1081 *cur_dsd++ = dsd_list_len;
1082 cur_dsd = (uint32_t *)next_dsd;
1083 }
1084 sle_dma = sg_dma_address(sg);
1085
1086 *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
1087 *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
1088 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
1089 avail_dsds--;
1090
1091 }
1092 /* Null termination */
1093 *cur_dsd++ = 0;
1094 *cur_dsd++ = 0;
1095 *cur_dsd++ = 0;
1096 return 0;
1097 }
1098
1099 int
1100 qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *ha, srb_t *sp,
1101 uint32_t *dsd, uint16_t tot_dsds, struct qla_tc_param *tc)
1102 {
1103 void *next_dsd;
1104 uint8_t avail_dsds = 0;
1105 uint32_t dsd_list_len;
1106 struct dsd_dma *dsd_ptr;
1107 struct scatterlist *sg, *sgl;
1108 int i;
1109 struct scsi_cmnd *cmd;
1110 uint32_t *cur_dsd = dsd;
1111 uint16_t used_dsds = tot_dsds;
1112 struct scsi_qla_host *vha;
1113
1114 if (sp) {
1115 cmd = GET_CMD_SP(sp);
1116 sgl = scsi_prot_sglist(cmd);
1117 vha = sp->vha;
1118 } else if (tc) {
1119 vha = tc->vha;
1120 sgl = tc->prot_sg;
1121 } else {
1122 BUG();
1123 return 1;
1124 }
1125
1126 ql_dbg(ql_dbg_tgt, vha, 0xe021,
1127 "%s: enter\n", __func__);
1128
1129 for_each_sg(sgl, sg, tot_dsds, i) {
1130 dma_addr_t sle_dma;
1131
1132 /* Allocate additional continuation packets? */
1133 if (avail_dsds == 0) {
1134 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ?
1135 QLA_DSDS_PER_IOCB : used_dsds;
1136 dsd_list_len = (avail_dsds + 1) * 12;
1137 used_dsds -= avail_dsds;
1138
1139 /* allocate tracking DS */
1140 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
1141 if (!dsd_ptr)
1142 return 1;
1143
1144 /* allocate new list */
1145 dsd_ptr->dsd_addr = next_dsd =
1146 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC,
1147 &dsd_ptr->dsd_list_dma);
1148
1149 if (!next_dsd) {
1150 /*
1151 * Need to cleanup only this dsd_ptr, rest
1152 * will be done by sp_free_dma()
1153 */
1154 kfree(dsd_ptr);
1155 return 1;
1156 }
1157
1158 if (sp) {
1159 list_add_tail(&dsd_ptr->list,
1160 &((struct crc_context *)
1161 sp->u.scmd.ctx)->dsd_list);
1162
1163 sp->flags |= SRB_CRC_CTX_DSD_VALID;
1164 } else {
1165 list_add_tail(&dsd_ptr->list,
1166 &(tc->ctx->dsd_list));
1167 *tc->ctx_dsd_alloced = 1;
1168 }
1169
1170 /* add new list to cmd iocb or last list */
1171 *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
1172 *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
1173 *cur_dsd++ = dsd_list_len;
1174 cur_dsd = (uint32_t *)next_dsd;
1175 }
1176 sle_dma = sg_dma_address(sg);
1177
1178 *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
1179 *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
1180 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
1181
1182 avail_dsds--;
1183 }
1184 /* Null termination */
1185 *cur_dsd++ = 0;
1186 *cur_dsd++ = 0;
1187 *cur_dsd++ = 0;
1188 return 0;
1189 }
1190
1191 /**
1192 * qla24xx_build_scsi_crc_2_iocbs() - Build IOCB command utilizing Command
1193 * Type 6 IOCB types.
1194 *
1195 * @sp: SRB command to process
1196 * @cmd_pkt: Command type 3 IOCB
1197 * @tot_dsds: Total number of segments to transfer
1198 * @tot_prot_dsds:
1199 * @fw_prot_opts:
1200 */
1201 inline int
1202 qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt,
1203 uint16_t tot_dsds, uint16_t tot_prot_dsds, uint16_t fw_prot_opts)
1204 {
1205 uint32_t *cur_dsd, *fcp_dl;
1206 scsi_qla_host_t *vha;
1207 struct scsi_cmnd *cmd;
1208 uint32_t total_bytes = 0;
1209 uint32_t data_bytes;
1210 uint32_t dif_bytes;
1211 uint8_t bundling = 1;
1212 uint16_t blk_size;
1213 struct crc_context *crc_ctx_pkt = NULL;
1214 struct qla_hw_data *ha;
1215 uint8_t additional_fcpcdb_len;
1216 uint16_t fcp_cmnd_len;
1217 struct fcp_cmnd *fcp_cmnd;
1218 dma_addr_t crc_ctx_dma;
1219
1220 cmd = GET_CMD_SP(sp);
1221
1222 /* Update entry type to indicate Command Type CRC_2 IOCB */
1223 *((uint32_t *)(&cmd_pkt->entry_type)) = cpu_to_le32(COMMAND_TYPE_CRC_2);
1224
1225 vha = sp->vha;
1226 ha = vha->hw;
1227
1228 /* No data transfer */
1229 data_bytes = scsi_bufflen(cmd);
1230 if (!data_bytes || cmd->sc_data_direction == DMA_NONE) {
1231 cmd_pkt->byte_count = cpu_to_le32(0);
1232 return QLA_SUCCESS;
1233 }
1234
1235 cmd_pkt->vp_index = sp->vha->vp_idx;
1236
1237 /* Set transfer direction */
1238 if (cmd->sc_data_direction == DMA_TO_DEVICE) {
1239 cmd_pkt->control_flags =
1240 cpu_to_le16(CF_WRITE_DATA);
1241 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
1242 cmd_pkt->control_flags =
1243 cpu_to_le16(CF_READ_DATA);
1244 }
1245
1246 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
1247 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP) ||
1248 (scsi_get_prot_op(cmd) == SCSI_PROT_READ_STRIP) ||
1249 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_INSERT))
1250 bundling = 0;
1251
1252 /* Allocate CRC context from global pool */
1253 crc_ctx_pkt = sp->u.scmd.ctx =
1254 dma_pool_zalloc(ha->dl_dma_pool, GFP_ATOMIC, &crc_ctx_dma);
1255
1256 if (!crc_ctx_pkt)
1257 goto crc_queuing_error;
1258
1259 crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma;
1260
1261 sp->flags |= SRB_CRC_CTX_DMA_VALID;
1262
1263 /* Set handle */
1264 crc_ctx_pkt->handle = cmd_pkt->handle;
1265
1266 INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list);
1267
1268 qla24xx_set_t10dif_tags(sp, (struct fw_dif_context *)
1269 &crc_ctx_pkt->ref_tag, tot_prot_dsds);
1270
1271 cmd_pkt->crc_context_address[0] = cpu_to_le32(LSD(crc_ctx_dma));
1272 cmd_pkt->crc_context_address[1] = cpu_to_le32(MSD(crc_ctx_dma));
1273 cmd_pkt->crc_context_len = CRC_CONTEXT_LEN_FW;
1274
1275 /* Determine SCSI command length -- align to 4 byte boundary */
1276 if (cmd->cmd_len > 16) {
1277 additional_fcpcdb_len = cmd->cmd_len - 16;
1278 if ((cmd->cmd_len % 4) != 0) {
1279 /* SCSI cmd > 16 bytes must be multiple of 4 */
1280 goto crc_queuing_error;
1281 }
1282 fcp_cmnd_len = 12 + cmd->cmd_len + 4;
1283 } else {
1284 additional_fcpcdb_len = 0;
1285 fcp_cmnd_len = 12 + 16 + 4;
1286 }
1287
1288 fcp_cmnd = &crc_ctx_pkt->fcp_cmnd;
1289
1290 fcp_cmnd->additional_cdb_len = additional_fcpcdb_len;
1291 if (cmd->sc_data_direction == DMA_TO_DEVICE)
1292 fcp_cmnd->additional_cdb_len |= 1;
1293 else if (cmd->sc_data_direction == DMA_FROM_DEVICE)
1294 fcp_cmnd->additional_cdb_len |= 2;
1295
1296 int_to_scsilun(cmd->device->lun, &fcp_cmnd->lun);
1297 memcpy(fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len);
1298 cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(fcp_cmnd_len);
1299 cmd_pkt->fcp_cmnd_dseg_address[0] = cpu_to_le32(
1300 LSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF));
1301 cmd_pkt->fcp_cmnd_dseg_address[1] = cpu_to_le32(
1302 MSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF));
1303 fcp_cmnd->task_management = 0;
1304 fcp_cmnd->task_attribute = TSK_SIMPLE;
1305
1306 cmd_pkt->fcp_rsp_dseg_len = 0; /* Let response come in status iocb */
1307
1308 /* Compute dif len and adjust data len to incude protection */
1309 dif_bytes = 0;
1310 blk_size = cmd->device->sector_size;
1311 dif_bytes = (data_bytes / blk_size) * 8;
1312
1313 switch (scsi_get_prot_op(GET_CMD_SP(sp))) {
1314 case SCSI_PROT_READ_INSERT:
1315 case SCSI_PROT_WRITE_STRIP:
1316 total_bytes = data_bytes;
1317 data_bytes += dif_bytes;
1318 break;
1319
1320 case SCSI_PROT_READ_STRIP:
1321 case SCSI_PROT_WRITE_INSERT:
1322 case SCSI_PROT_READ_PASS:
1323 case SCSI_PROT_WRITE_PASS:
1324 total_bytes = data_bytes + dif_bytes;
1325 break;
1326 default:
1327 BUG();
1328 }
1329
1330 if (!qla2x00_hba_err_chk_enabled(sp))
1331 fw_prot_opts |= 0x10; /* Disable Guard tag checking */
1332 /* HBA error checking enabled */
1333 else if (IS_PI_UNINIT_CAPABLE(ha)) {
1334 if ((scsi_get_prot_type(GET_CMD_SP(sp)) == SCSI_PROT_DIF_TYPE1)
1335 || (scsi_get_prot_type(GET_CMD_SP(sp)) ==
1336 SCSI_PROT_DIF_TYPE2))
1337 fw_prot_opts |= BIT_10;
1338 else if (scsi_get_prot_type(GET_CMD_SP(sp)) ==
1339 SCSI_PROT_DIF_TYPE3)
1340 fw_prot_opts |= BIT_11;
1341 }
1342
1343 if (!bundling) {
1344 cur_dsd = (uint32_t *) &crc_ctx_pkt->u.nobundling.data_address;
1345 } else {
1346 /*
1347 * Configure Bundling if we need to fetch interlaving
1348 * protection PCI accesses
1349 */
1350 fw_prot_opts |= PO_ENABLE_DIF_BUNDLING;
1351 crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes);
1352 crc_ctx_pkt->u.bundling.dseg_count = cpu_to_le16(tot_dsds -
1353 tot_prot_dsds);
1354 cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.data_address;
1355 }
1356
1357 /* Finish the common fields of CRC pkt */
1358 crc_ctx_pkt->blk_size = cpu_to_le16(blk_size);
1359 crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts);
1360 crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes);
1361 crc_ctx_pkt->guard_seed = cpu_to_le16(0);
1362 /* Fibre channel byte count */
1363 cmd_pkt->byte_count = cpu_to_le32(total_bytes);
1364 fcp_dl = (uint32_t *)(crc_ctx_pkt->fcp_cmnd.cdb + 16 +
1365 additional_fcpcdb_len);
1366 *fcp_dl = htonl(total_bytes);
1367
1368 if (!data_bytes || cmd->sc_data_direction == DMA_NONE) {
1369 cmd_pkt->byte_count = cpu_to_le32(0);
1370 return QLA_SUCCESS;
1371 }
1372 /* Walks data segments */
1373
1374 cmd_pkt->control_flags |= cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE);
1375
1376 if (!bundling && tot_prot_dsds) {
1377 if (qla24xx_walk_and_build_sglist_no_difb(ha, sp,
1378 cur_dsd, tot_dsds, NULL))
1379 goto crc_queuing_error;
1380 } else if (qla24xx_walk_and_build_sglist(ha, sp, cur_dsd,
1381 (tot_dsds - tot_prot_dsds), NULL))
1382 goto crc_queuing_error;
1383
1384 if (bundling && tot_prot_dsds) {
1385 /* Walks dif segments */
1386 cmd_pkt->control_flags |= cpu_to_le16(CF_DIF_SEG_DESCR_ENABLE);
1387 cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.dif_address;
1388 if (qla24xx_walk_and_build_prot_sglist(ha, sp, cur_dsd,
1389 tot_prot_dsds, NULL))
1390 goto crc_queuing_error;
1391 }
1392 return QLA_SUCCESS;
1393
1394 crc_queuing_error:
1395 /* Cleanup will be performed by the caller */
1396
1397 return QLA_FUNCTION_FAILED;
1398 }
1399
1400 /**
1401 * qla24xx_start_scsi() - Send a SCSI command to the ISP
1402 * @sp: command to send to the ISP
1403 *
1404 * Returns non-zero if a failure occurred, else zero.
1405 */
1406 int
1407 qla24xx_start_scsi(srb_t *sp)
1408 {
1409 int nseg;
1410 unsigned long flags;
1411 uint32_t *clr_ptr;
1412 uint32_t index;
1413 uint32_t handle;
1414 struct cmd_type_7 *cmd_pkt;
1415 uint16_t cnt;
1416 uint16_t req_cnt;
1417 uint16_t tot_dsds;
1418 struct req_que *req = NULL;
1419 struct rsp_que *rsp = NULL;
1420 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1421 struct scsi_qla_host *vha = sp->vha;
1422 struct qla_hw_data *ha = vha->hw;
1423
1424 /* Setup device pointers. */
1425 req = vha->req;
1426 rsp = req->rsp;
1427
1428 /* So we know we haven't pci_map'ed anything yet */
1429 tot_dsds = 0;
1430
1431 /* Send marker if required */
1432 if (vha->marker_needed != 0) {
1433 if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) !=
1434 QLA_SUCCESS)
1435 return QLA_FUNCTION_FAILED;
1436 vha->marker_needed = 0;
1437 }
1438
1439 /* Acquire ring specific lock */
1440 spin_lock_irqsave(&ha->hardware_lock, flags);
1441
1442 /* Check for room in outstanding command list. */
1443 handle = req->current_outstanding_cmd;
1444 for (index = 1; index < req->num_outstanding_cmds; index++) {
1445 handle++;
1446 if (handle == req->num_outstanding_cmds)
1447 handle = 1;
1448 if (!req->outstanding_cmds[handle])
1449 break;
1450 }
1451 if (index == req->num_outstanding_cmds)
1452 goto queuing_error;
1453
1454 /* Map the sg table so we have an accurate count of sg entries needed */
1455 if (scsi_sg_count(cmd)) {
1456 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
1457 scsi_sg_count(cmd), cmd->sc_data_direction);
1458 if (unlikely(!nseg))
1459 goto queuing_error;
1460 } else
1461 nseg = 0;
1462
1463 tot_dsds = nseg;
1464 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
1465 if (req->cnt < (req_cnt + 2)) {
1466 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
1467 RD_REG_DWORD_RELAXED(req->req_q_out);
1468 if (req->ring_index < cnt)
1469 req->cnt = cnt - req->ring_index;
1470 else
1471 req->cnt = req->length -
1472 (req->ring_index - cnt);
1473 if (req->cnt < (req_cnt + 2))
1474 goto queuing_error;
1475 }
1476
1477 /* Build command packet. */
1478 req->current_outstanding_cmd = handle;
1479 req->outstanding_cmds[handle] = sp;
1480 sp->handle = handle;
1481 cmd->host_scribble = (unsigned char *)(unsigned long)handle;
1482 req->cnt -= req_cnt;
1483
1484 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr;
1485 cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
1486
1487 /* Zero out remaining portion of packet. */
1488 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */
1489 clr_ptr = (uint32_t *)cmd_pkt + 2;
1490 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
1491 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
1492
1493 /* Set NPORT-ID and LUN number*/
1494 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
1495 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
1496 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
1497 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
1498 cmd_pkt->vp_index = sp->vha->vp_idx;
1499
1500 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
1501 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
1502
1503 cmd_pkt->task = TSK_SIMPLE;
1504
1505 /* Load SCSI command packet. */
1506 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len);
1507 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb));
1508
1509 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
1510
1511 /* Build IOCB segments */
1512 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req);
1513
1514 /* Set total data segment count. */
1515 cmd_pkt->entry_count = (uint8_t)req_cnt;
1516 wmb();
1517 /* Adjust ring index. */
1518 req->ring_index++;
1519 if (req->ring_index == req->length) {
1520 req->ring_index = 0;
1521 req->ring_ptr = req->ring;
1522 } else
1523 req->ring_ptr++;
1524
1525 sp->flags |= SRB_DMA_VALID;
1526
1527 /* Set chip new ring index. */
1528 WRT_REG_DWORD(req->req_q_in, req->ring_index);
1529
1530 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1531 return QLA_SUCCESS;
1532
1533 queuing_error:
1534 if (tot_dsds)
1535 scsi_dma_unmap(cmd);
1536
1537 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1538
1539 return QLA_FUNCTION_FAILED;
1540 }
1541
1542 /**
1543 * qla24xx_dif_start_scsi() - Send a SCSI command to the ISP
1544 * @sp: command to send to the ISP
1545 *
1546 * Returns non-zero if a failure occurred, else zero.
1547 */
1548 int
1549 qla24xx_dif_start_scsi(srb_t *sp)
1550 {
1551 int nseg;
1552 unsigned long flags;
1553 uint32_t *clr_ptr;
1554 uint32_t index;
1555 uint32_t handle;
1556 uint16_t cnt;
1557 uint16_t req_cnt = 0;
1558 uint16_t tot_dsds;
1559 uint16_t tot_prot_dsds;
1560 uint16_t fw_prot_opts = 0;
1561 struct req_que *req = NULL;
1562 struct rsp_que *rsp = NULL;
1563 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1564 struct scsi_qla_host *vha = sp->vha;
1565 struct qla_hw_data *ha = vha->hw;
1566 struct cmd_type_crc_2 *cmd_pkt;
1567 uint32_t status = 0;
1568
1569 #define QDSS_GOT_Q_SPACE BIT_0
1570
1571 /* Only process protection or >16 cdb in this routine */
1572 if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) {
1573 if (cmd->cmd_len <= 16)
1574 return qla24xx_start_scsi(sp);
1575 }
1576
1577 /* Setup device pointers. */
1578 req = vha->req;
1579 rsp = req->rsp;
1580
1581 /* So we know we haven't pci_map'ed anything yet */
1582 tot_dsds = 0;
1583
1584 /* Send marker if required */
1585 if (vha->marker_needed != 0) {
1586 if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) !=
1587 QLA_SUCCESS)
1588 return QLA_FUNCTION_FAILED;
1589 vha->marker_needed = 0;
1590 }
1591
1592 /* Acquire ring specific lock */
1593 spin_lock_irqsave(&ha->hardware_lock, flags);
1594
1595 /* Check for room in outstanding command list. */
1596 handle = req->current_outstanding_cmd;
1597 for (index = 1; index < req->num_outstanding_cmds; index++) {
1598 handle++;
1599 if (handle == req->num_outstanding_cmds)
1600 handle = 1;
1601 if (!req->outstanding_cmds[handle])
1602 break;
1603 }
1604
1605 if (index == req->num_outstanding_cmds)
1606 goto queuing_error;
1607
1608 /* Compute number of required data segments */
1609 /* Map the sg table so we have an accurate count of sg entries needed */
1610 if (scsi_sg_count(cmd)) {
1611 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
1612 scsi_sg_count(cmd), cmd->sc_data_direction);
1613 if (unlikely(!nseg))
1614 goto queuing_error;
1615 else
1616 sp->flags |= SRB_DMA_VALID;
1617
1618 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
1619 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) {
1620 struct qla2_sgx sgx;
1621 uint32_t partial;
1622
1623 memset(&sgx, 0, sizeof(struct qla2_sgx));
1624 sgx.tot_bytes = scsi_bufflen(cmd);
1625 sgx.cur_sg = scsi_sglist(cmd);
1626 sgx.sp = sp;
1627
1628 nseg = 0;
1629 while (qla24xx_get_one_block_sg(
1630 cmd->device->sector_size, &sgx, &partial))
1631 nseg++;
1632 }
1633 } else
1634 nseg = 0;
1635
1636 /* number of required data segments */
1637 tot_dsds = nseg;
1638
1639 /* Compute number of required protection segments */
1640 if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) {
1641 nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
1642 scsi_prot_sg_count(cmd), cmd->sc_data_direction);
1643 if (unlikely(!nseg))
1644 goto queuing_error;
1645 else
1646 sp->flags |= SRB_CRC_PROT_DMA_VALID;
1647
1648 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
1649 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) {
1650 nseg = scsi_bufflen(cmd) / cmd->device->sector_size;
1651 }
1652 } else {
1653 nseg = 0;
1654 }
1655
1656 req_cnt = 1;
1657 /* Total Data and protection sg segment(s) */
1658 tot_prot_dsds = nseg;
1659 tot_dsds += nseg;
1660 if (req->cnt < (req_cnt + 2)) {
1661 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
1662 RD_REG_DWORD_RELAXED(req->req_q_out);
1663 if (req->ring_index < cnt)
1664 req->cnt = cnt - req->ring_index;
1665 else
1666 req->cnt = req->length -
1667 (req->ring_index - cnt);
1668 if (req->cnt < (req_cnt + 2))
1669 goto queuing_error;
1670 }
1671
1672 status |= QDSS_GOT_Q_SPACE;
1673
1674 /* Build header part of command packet (excluding the OPCODE). */
1675 req->current_outstanding_cmd = handle;
1676 req->outstanding_cmds[handle] = sp;
1677 sp->handle = handle;
1678 cmd->host_scribble = (unsigned char *)(unsigned long)handle;
1679 req->cnt -= req_cnt;
1680
1681 /* Fill-in common area */
1682 cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr;
1683 cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
1684
1685 clr_ptr = (uint32_t *)cmd_pkt + 2;
1686 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
1687
1688 /* Set NPORT-ID and LUN number*/
1689 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
1690 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
1691 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
1692 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
1693
1694 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
1695 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
1696
1697 /* Total Data and protection segment(s) */
1698 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
1699
1700 /* Build IOCB segments and adjust for data protection segments */
1701 if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *)
1702 req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) !=
1703 QLA_SUCCESS)
1704 goto queuing_error;
1705
1706 cmd_pkt->entry_count = (uint8_t)req_cnt;
1707 /* Specify response queue number where completion should happen */
1708 cmd_pkt->entry_status = (uint8_t) rsp->id;
1709 cmd_pkt->timeout = cpu_to_le16(0);
1710 wmb();
1711
1712 /* Adjust ring index. */
1713 req->ring_index++;
1714 if (req->ring_index == req->length) {
1715 req->ring_index = 0;
1716 req->ring_ptr = req->ring;
1717 } else
1718 req->ring_ptr++;
1719
1720 /* Set chip new ring index. */
1721 WRT_REG_DWORD(req->req_q_in, req->ring_index);
1722
1723 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1724
1725 return QLA_SUCCESS;
1726
1727 queuing_error:
1728 if (status & QDSS_GOT_Q_SPACE) {
1729 req->outstanding_cmds[handle] = NULL;
1730 req->cnt += req_cnt;
1731 }
1732 /* Cleanup will be performed by the caller (queuecommand) */
1733
1734 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1735 return QLA_FUNCTION_FAILED;
1736 }
1737
1738 /**
1739 * qla2xxx_start_scsi_mq() - Send a SCSI command to the ISP
1740 * @sp: command to send to the ISP
1741 *
1742 * Returns non-zero if a failure occurred, else zero.
1743 */
1744 static int
1745 qla2xxx_start_scsi_mq(srb_t *sp)
1746 {
1747 int nseg;
1748 unsigned long flags;
1749 uint32_t *clr_ptr;
1750 uint32_t index;
1751 uint32_t handle;
1752 struct cmd_type_7 *cmd_pkt;
1753 uint16_t cnt;
1754 uint16_t req_cnt;
1755 uint16_t tot_dsds;
1756 struct req_que *req = NULL;
1757 struct rsp_que *rsp = NULL;
1758 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1759 struct scsi_qla_host *vha = sp->fcport->vha;
1760 struct qla_hw_data *ha = vha->hw;
1761 struct qla_qpair *qpair = sp->qpair;
1762
1763 /* Acquire qpair specific lock */
1764 spin_lock_irqsave(&qpair->qp_lock, flags);
1765
1766 /* Setup qpair pointers */
1767 rsp = qpair->rsp;
1768 req = qpair->req;
1769
1770 /* So we know we haven't pci_map'ed anything yet */
1771 tot_dsds = 0;
1772
1773 /* Send marker if required */
1774 if (vha->marker_needed != 0) {
1775 if (__qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) !=
1776 QLA_SUCCESS) {
1777 spin_unlock_irqrestore(&qpair->qp_lock, flags);
1778 return QLA_FUNCTION_FAILED;
1779 }
1780 vha->marker_needed = 0;
1781 }
1782
1783 /* Check for room in outstanding command list. */
1784 handle = req->current_outstanding_cmd;
1785 for (index = 1; index < req->num_outstanding_cmds; index++) {
1786 handle++;
1787 if (handle == req->num_outstanding_cmds)
1788 handle = 1;
1789 if (!req->outstanding_cmds[handle])
1790 break;
1791 }
1792 if (index == req->num_outstanding_cmds)
1793 goto queuing_error;
1794
1795 /* Map the sg table so we have an accurate count of sg entries needed */
1796 if (scsi_sg_count(cmd)) {
1797 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
1798 scsi_sg_count(cmd), cmd->sc_data_direction);
1799 if (unlikely(!nseg))
1800 goto queuing_error;
1801 } else
1802 nseg = 0;
1803
1804 tot_dsds = nseg;
1805 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
1806 if (req->cnt < (req_cnt + 2)) {
1807 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
1808 RD_REG_DWORD_RELAXED(req->req_q_out);
1809 if (req->ring_index < cnt)
1810 req->cnt = cnt - req->ring_index;
1811 else
1812 req->cnt = req->length -
1813 (req->ring_index - cnt);
1814 if (req->cnt < (req_cnt + 2))
1815 goto queuing_error;
1816 }
1817
1818 /* Build command packet. */
1819 req->current_outstanding_cmd = handle;
1820 req->outstanding_cmds[handle] = sp;
1821 sp->handle = handle;
1822 cmd->host_scribble = (unsigned char *)(unsigned long)handle;
1823 req->cnt -= req_cnt;
1824
1825 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr;
1826 cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
1827
1828 /* Zero out remaining portion of packet. */
1829 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */
1830 clr_ptr = (uint32_t *)cmd_pkt + 2;
1831 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
1832 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
1833
1834 /* Set NPORT-ID and LUN number*/
1835 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
1836 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
1837 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
1838 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
1839 cmd_pkt->vp_index = sp->fcport->vha->vp_idx;
1840
1841 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
1842 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
1843
1844 cmd_pkt->task = TSK_SIMPLE;
1845
1846 /* Load SCSI command packet. */
1847 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len);
1848 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb));
1849
1850 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
1851
1852 /* Build IOCB segments */
1853 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req);
1854
1855 /* Set total data segment count. */
1856 cmd_pkt->entry_count = (uint8_t)req_cnt;
1857 wmb();
1858 /* Adjust ring index. */
1859 req->ring_index++;
1860 if (req->ring_index == req->length) {
1861 req->ring_index = 0;
1862 req->ring_ptr = req->ring;
1863 } else
1864 req->ring_ptr++;
1865
1866 sp->flags |= SRB_DMA_VALID;
1867
1868 /* Set chip new ring index. */
1869 WRT_REG_DWORD(req->req_q_in, req->ring_index);
1870
1871 spin_unlock_irqrestore(&qpair->qp_lock, flags);
1872 return QLA_SUCCESS;
1873
1874 queuing_error:
1875 if (tot_dsds)
1876 scsi_dma_unmap(cmd);
1877
1878 spin_unlock_irqrestore(&qpair->qp_lock, flags);
1879
1880 return QLA_FUNCTION_FAILED;
1881 }
1882
1883
1884 /**
1885 * qla2xxx_dif_start_scsi_mq() - Send a SCSI command to the ISP
1886 * @sp: command to send to the ISP
1887 *
1888 * Returns non-zero if a failure occurred, else zero.
1889 */
1890 int
1891 qla2xxx_dif_start_scsi_mq(srb_t *sp)
1892 {
1893 int nseg;
1894 unsigned long flags;
1895 uint32_t *clr_ptr;
1896 uint32_t index;
1897 uint32_t handle;
1898 uint16_t cnt;
1899 uint16_t req_cnt = 0;
1900 uint16_t tot_dsds;
1901 uint16_t tot_prot_dsds;
1902 uint16_t fw_prot_opts = 0;
1903 struct req_que *req = NULL;
1904 struct rsp_que *rsp = NULL;
1905 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1906 struct scsi_qla_host *vha = sp->fcport->vha;
1907 struct qla_hw_data *ha = vha->hw;
1908 struct cmd_type_crc_2 *cmd_pkt;
1909 uint32_t status = 0;
1910 struct qla_qpair *qpair = sp->qpair;
1911
1912 #define QDSS_GOT_Q_SPACE BIT_0
1913
1914 /* Check for host side state */
1915 if (!qpair->online) {
1916 cmd->result = DID_NO_CONNECT << 16;
1917 return QLA_INTERFACE_ERROR;
1918 }
1919
1920 if (!qpair->difdix_supported &&
1921 scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
1922 cmd->result = DID_NO_CONNECT << 16;
1923 return QLA_INTERFACE_ERROR;
1924 }
1925
1926 /* Only process protection or >16 cdb in this routine */
1927 if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) {
1928 if (cmd->cmd_len <= 16)
1929 return qla2xxx_start_scsi_mq(sp);
1930 }
1931
1932 spin_lock_irqsave(&qpair->qp_lock, flags);
1933
1934 /* Setup qpair pointers */
1935 rsp = qpair->rsp;
1936 req = qpair->req;
1937
1938 /* So we know we haven't pci_map'ed anything yet */
1939 tot_dsds = 0;
1940
1941 /* Send marker if required */
1942 if (vha->marker_needed != 0) {
1943 if (__qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) !=
1944 QLA_SUCCESS) {
1945 spin_unlock_irqrestore(&qpair->qp_lock, flags);
1946 return QLA_FUNCTION_FAILED;
1947 }
1948 vha->marker_needed = 0;
1949 }
1950
1951 /* Check for room in outstanding command list. */
1952 handle = req->current_outstanding_cmd;
1953 for (index = 1; index < req->num_outstanding_cmds; index++) {
1954 handle++;
1955 if (handle == req->num_outstanding_cmds)
1956 handle = 1;
1957 if (!req->outstanding_cmds[handle])
1958 break;
1959 }
1960
1961 if (index == req->num_outstanding_cmds)
1962 goto queuing_error;
1963
1964 /* Compute number of required data segments */
1965 /* Map the sg table so we have an accurate count of sg entries needed */
1966 if (scsi_sg_count(cmd)) {
1967 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
1968 scsi_sg_count(cmd), cmd->sc_data_direction);
1969 if (unlikely(!nseg))
1970 goto queuing_error;
1971 else
1972 sp->flags |= SRB_DMA_VALID;
1973
1974 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
1975 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) {
1976 struct qla2_sgx sgx;
1977 uint32_t partial;
1978
1979 memset(&sgx, 0, sizeof(struct qla2_sgx));
1980 sgx.tot_bytes = scsi_bufflen(cmd);
1981 sgx.cur_sg = scsi_sglist(cmd);
1982 sgx.sp = sp;
1983
1984 nseg = 0;
1985 while (qla24xx_get_one_block_sg(
1986 cmd->device->sector_size, &sgx, &partial))
1987 nseg++;
1988 }
1989 } else
1990 nseg = 0;
1991
1992 /* number of required data segments */
1993 tot_dsds = nseg;
1994
1995 /* Compute number of required protection segments */
1996 if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) {
1997 nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
1998 scsi_prot_sg_count(cmd), cmd->sc_data_direction);
1999 if (unlikely(!nseg))
2000 goto queuing_error;
2001 else
2002 sp->flags |= SRB_CRC_PROT_DMA_VALID;
2003
2004 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
2005 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) {
2006 nseg = scsi_bufflen(cmd) / cmd->device->sector_size;
2007 }
2008 } else {
2009 nseg = 0;
2010 }
2011
2012 req_cnt = 1;
2013 /* Total Data and protection sg segment(s) */
2014 tot_prot_dsds = nseg;
2015 tot_dsds += nseg;
2016 if (req->cnt < (req_cnt + 2)) {
2017 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
2018 RD_REG_DWORD_RELAXED(req->req_q_out);
2019 if (req->ring_index < cnt)
2020 req->cnt = cnt - req->ring_index;
2021 else
2022 req->cnt = req->length -
2023 (req->ring_index - cnt);
2024 if (req->cnt < (req_cnt + 2))
2025 goto queuing_error;
2026 }
2027
2028 status |= QDSS_GOT_Q_SPACE;
2029
2030 /* Build header part of command packet (excluding the OPCODE). */
2031 req->current_outstanding_cmd = handle;
2032 req->outstanding_cmds[handle] = sp;
2033 sp->handle = handle;
2034 cmd->host_scribble = (unsigned char *)(unsigned long)handle;
2035 req->cnt -= req_cnt;
2036
2037 /* Fill-in common area */
2038 cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr;
2039 cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
2040
2041 clr_ptr = (uint32_t *)cmd_pkt + 2;
2042 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
2043
2044 /* Set NPORT-ID and LUN number*/
2045 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2046 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
2047 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
2048 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
2049
2050 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
2051 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
2052
2053 /* Total Data and protection segment(s) */
2054 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
2055
2056 /* Build IOCB segments and adjust for data protection segments */
2057 if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *)
2058 req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) !=
2059 QLA_SUCCESS)
2060 goto queuing_error;
2061
2062 cmd_pkt->entry_count = (uint8_t)req_cnt;
2063 cmd_pkt->timeout = cpu_to_le16(0);
2064 wmb();
2065
2066 /* Adjust ring index. */
2067 req->ring_index++;
2068 if (req->ring_index == req->length) {
2069 req->ring_index = 0;
2070 req->ring_ptr = req->ring;
2071 } else
2072 req->ring_ptr++;
2073
2074 /* Set chip new ring index. */
2075 WRT_REG_DWORD(req->req_q_in, req->ring_index);
2076
2077 /* Manage unprocessed RIO/ZIO commands in response queue. */
2078 if (vha->flags.process_response_queue &&
2079 rsp->ring_ptr->signature != RESPONSE_PROCESSED)
2080 qla24xx_process_response_queue(vha, rsp);
2081
2082 spin_unlock_irqrestore(&qpair->qp_lock, flags);
2083
2084 return QLA_SUCCESS;
2085
2086 queuing_error:
2087 if (status & QDSS_GOT_Q_SPACE) {
2088 req->outstanding_cmds[handle] = NULL;
2089 req->cnt += req_cnt;
2090 }
2091 /* Cleanup will be performed by the caller (queuecommand) */
2092
2093 spin_unlock_irqrestore(&qpair->qp_lock, flags);
2094 return QLA_FUNCTION_FAILED;
2095 }
2096
2097 /* Generic Control-SRB manipulation functions. */
2098
2099 /* hardware_lock assumed to be held. */
2100
2101 void *
2102 __qla2x00_alloc_iocbs(struct qla_qpair *qpair, srb_t *sp)
2103 {
2104 scsi_qla_host_t *vha = qpair->vha;
2105 struct qla_hw_data *ha = vha->hw;
2106 struct req_que *req = qpair->req;
2107 device_reg_t *reg = ISP_QUE_REG(ha, req->id);
2108 uint32_t index, handle;
2109 request_t *pkt;
2110 uint16_t cnt, req_cnt;
2111
2112 pkt = NULL;
2113 req_cnt = 1;
2114 handle = 0;
2115
2116 if (sp && (sp->type != SRB_SCSI_CMD)) {
2117 /* Adjust entry-counts as needed. */
2118 req_cnt = sp->iocbs;
2119 }
2120
2121 /* Check for room on request queue. */
2122 if (req->cnt < req_cnt + 2) {
2123 if (qpair->use_shadow_reg)
2124 cnt = *req->out_ptr;
2125 else if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha))
2126 cnt = RD_REG_DWORD(&reg->isp25mq.req_q_out);
2127 else if (IS_P3P_TYPE(ha))
2128 cnt = RD_REG_DWORD(&reg->isp82.req_q_out);
2129 else if (IS_FWI2_CAPABLE(ha))
2130 cnt = RD_REG_DWORD(&reg->isp24.req_q_out);
2131 else if (IS_QLAFX00(ha))
2132 cnt = RD_REG_DWORD(&reg->ispfx00.req_q_out);
2133 else
2134 cnt = qla2x00_debounce_register(
2135 ISP_REQ_Q_OUT(ha, &reg->isp));
2136
2137 if (req->ring_index < cnt)
2138 req->cnt = cnt - req->ring_index;
2139 else
2140 req->cnt = req->length -
2141 (req->ring_index - cnt);
2142 }
2143 if (req->cnt < req_cnt + 2)
2144 goto queuing_error;
2145
2146 if (sp) {
2147 /* Check for room in outstanding command list. */
2148 handle = req->current_outstanding_cmd;
2149 for (index = 1; index < req->num_outstanding_cmds; index++) {
2150 handle++;
2151 if (handle == req->num_outstanding_cmds)
2152 handle = 1;
2153 if (!req->outstanding_cmds[handle])
2154 break;
2155 }
2156 if (index == req->num_outstanding_cmds) {
2157 ql_log(ql_log_warn, vha, 0x700b,
2158 "No room on outstanding cmd array.\n");
2159 goto queuing_error;
2160 }
2161
2162 /* Prep command array. */
2163 req->current_outstanding_cmd = handle;
2164 req->outstanding_cmds[handle] = sp;
2165 sp->handle = handle;
2166 }
2167
2168 /* Prep packet */
2169 req->cnt -= req_cnt;
2170 pkt = req->ring_ptr;
2171 memset(pkt, 0, REQUEST_ENTRY_SIZE);
2172 if (IS_QLAFX00(ha)) {
2173 WRT_REG_BYTE((void __iomem *)&pkt->entry_count, req_cnt);
2174 WRT_REG_WORD((void __iomem *)&pkt->handle, handle);
2175 } else {
2176 pkt->entry_count = req_cnt;
2177 pkt->handle = handle;
2178 }
2179
2180 return pkt;
2181
2182 queuing_error:
2183 qpair->tgt_counters.num_alloc_iocb_failed++;
2184 return pkt;
2185 }
2186
2187 void *
2188 qla2x00_alloc_iocbs_ready(struct qla_qpair *qpair, srb_t *sp)
2189 {
2190 scsi_qla_host_t *vha = qpair->vha;
2191
2192 if (qla2x00_reset_active(vha))
2193 return NULL;
2194
2195 return __qla2x00_alloc_iocbs(qpair, sp);
2196 }
2197
2198 void *
2199 qla2x00_alloc_iocbs(struct scsi_qla_host *vha, srb_t *sp)
2200 {
2201 return __qla2x00_alloc_iocbs(vha->hw->base_qpair, sp);
2202 }
2203
2204 static void
2205 qla24xx_prli_iocb(srb_t *sp, struct logio_entry_24xx *logio)
2206 {
2207 struct srb_iocb *lio = &sp->u.iocb_cmd;
2208
2209 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
2210 logio->control_flags = cpu_to_le16(LCF_COMMAND_PRLI);
2211 if (lio->u.logio.flags & SRB_LOGIN_NVME_PRLI)
2212 logio->control_flags |= LCF_NVME_PRLI;
2213
2214 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2215 logio->port_id[0] = sp->fcport->d_id.b.al_pa;
2216 logio->port_id[1] = sp->fcport->d_id.b.area;
2217 logio->port_id[2] = sp->fcport->d_id.b.domain;
2218 logio->vp_index = sp->vha->vp_idx;
2219 }
2220
2221 static void
2222 qla24xx_login_iocb(srb_t *sp, struct logio_entry_24xx *logio)
2223 {
2224 struct srb_iocb *lio = &sp->u.iocb_cmd;
2225
2226 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
2227 if (lio->u.logio.flags & SRB_LOGIN_PRLI_ONLY) {
2228 logio->control_flags = cpu_to_le16(LCF_COMMAND_PRLI);
2229 } else {
2230 logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI);
2231 if (lio->u.logio.flags & SRB_LOGIN_COND_PLOGI)
2232 logio->control_flags |= cpu_to_le16(LCF_COND_PLOGI);
2233 if (lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI)
2234 logio->control_flags |= cpu_to_le16(LCF_SKIP_PRLI);
2235 }
2236 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2237 logio->port_id[0] = sp->fcport->d_id.b.al_pa;
2238 logio->port_id[1] = sp->fcport->d_id.b.area;
2239 logio->port_id[2] = sp->fcport->d_id.b.domain;
2240 logio->vp_index = sp->vha->vp_idx;
2241 }
2242
2243 static void
2244 qla2x00_login_iocb(srb_t *sp, struct mbx_entry *mbx)
2245 {
2246 struct qla_hw_data *ha = sp->vha->hw;
2247 struct srb_iocb *lio = &sp->u.iocb_cmd;
2248 uint16_t opts;
2249
2250 mbx->entry_type = MBX_IOCB_TYPE;
2251 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id);
2252 mbx->mb0 = cpu_to_le16(MBC_LOGIN_FABRIC_PORT);
2253 opts = lio->u.logio.flags & SRB_LOGIN_COND_PLOGI ? BIT_0 : 0;
2254 opts |= lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI ? BIT_1 : 0;
2255 if (HAS_EXTENDED_IDS(ha)) {
2256 mbx->mb1 = cpu_to_le16(sp->fcport->loop_id);
2257 mbx->mb10 = cpu_to_le16(opts);
2258 } else {
2259 mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | opts);
2260 }
2261 mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain);
2262 mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 |
2263 sp->fcport->d_id.b.al_pa);
2264 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx);
2265 }
2266
2267 static void
2268 qla24xx_logout_iocb(srb_t *sp, struct logio_entry_24xx *logio)
2269 {
2270 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
2271 logio->control_flags =
2272 cpu_to_le16(LCF_COMMAND_LOGO|LCF_IMPL_LOGO);
2273 if (!sp->fcport->se_sess ||
2274 !sp->fcport->keep_nport_handle)
2275 logio->control_flags |= cpu_to_le16(LCF_FREE_NPORT);
2276 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2277 logio->port_id[0] = sp->fcport->d_id.b.al_pa;
2278 logio->port_id[1] = sp->fcport->d_id.b.area;
2279 logio->port_id[2] = sp->fcport->d_id.b.domain;
2280 logio->vp_index = sp->vha->vp_idx;
2281 }
2282
2283 static void
2284 qla2x00_logout_iocb(srb_t *sp, struct mbx_entry *mbx)
2285 {
2286 struct qla_hw_data *ha = sp->vha->hw;
2287
2288 mbx->entry_type = MBX_IOCB_TYPE;
2289 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id);
2290 mbx->mb0 = cpu_to_le16(MBC_LOGOUT_FABRIC_PORT);
2291 mbx->mb1 = HAS_EXTENDED_IDS(ha) ?
2292 cpu_to_le16(sp->fcport->loop_id):
2293 cpu_to_le16(sp->fcport->loop_id << 8);
2294 mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain);
2295 mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 |
2296 sp->fcport->d_id.b.al_pa);
2297 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx);
2298 /* Implicit: mbx->mbx10 = 0. */
2299 }
2300
2301 static void
2302 qla24xx_adisc_iocb(srb_t *sp, struct logio_entry_24xx *logio)
2303 {
2304 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
2305 logio->control_flags = cpu_to_le16(LCF_COMMAND_ADISC);
2306 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2307 logio->vp_index = sp->vha->vp_idx;
2308 }
2309
2310 static void
2311 qla2x00_adisc_iocb(srb_t *sp, struct mbx_entry *mbx)
2312 {
2313 struct qla_hw_data *ha = sp->vha->hw;
2314
2315 mbx->entry_type = MBX_IOCB_TYPE;
2316 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id);
2317 mbx->mb0 = cpu_to_le16(MBC_GET_PORT_DATABASE);
2318 if (HAS_EXTENDED_IDS(ha)) {
2319 mbx->mb1 = cpu_to_le16(sp->fcport->loop_id);
2320 mbx->mb10 = cpu_to_le16(BIT_0);
2321 } else {
2322 mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | BIT_0);
2323 }
2324 mbx->mb2 = cpu_to_le16(MSW(ha->async_pd_dma));
2325 mbx->mb3 = cpu_to_le16(LSW(ha->async_pd_dma));
2326 mbx->mb6 = cpu_to_le16(MSW(MSD(ha->async_pd_dma)));
2327 mbx->mb7 = cpu_to_le16(LSW(MSD(ha->async_pd_dma)));
2328 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx);
2329 }
2330
2331 static void
2332 qla24xx_tm_iocb(srb_t *sp, struct tsk_mgmt_entry *tsk)
2333 {
2334 uint32_t flags;
2335 uint64_t lun;
2336 struct fc_port *fcport = sp->fcport;
2337 scsi_qla_host_t *vha = fcport->vha;
2338 struct qla_hw_data *ha = vha->hw;
2339 struct srb_iocb *iocb = &sp->u.iocb_cmd;
2340 struct req_que *req = vha->req;
2341
2342 flags = iocb->u.tmf.flags;
2343 lun = iocb->u.tmf.lun;
2344
2345 tsk->entry_type = TSK_MGMT_IOCB_TYPE;
2346 tsk->entry_count = 1;
2347 tsk->handle = MAKE_HANDLE(req->id, tsk->handle);
2348 tsk->nport_handle = cpu_to_le16(fcport->loop_id);
2349 tsk->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2);
2350 tsk->control_flags = cpu_to_le32(flags);
2351 tsk->port_id[0] = fcport->d_id.b.al_pa;
2352 tsk->port_id[1] = fcport->d_id.b.area;
2353 tsk->port_id[2] = fcport->d_id.b.domain;
2354 tsk->vp_index = fcport->vha->vp_idx;
2355
2356 if (flags == TCF_LUN_RESET) {
2357 int_to_scsilun(lun, &tsk->lun);
2358 host_to_fcp_swap((uint8_t *)&tsk->lun,
2359 sizeof(tsk->lun));
2360 }
2361 }
2362
2363 static void
2364 qla2x00_els_dcmd_sp_free(void *data)
2365 {
2366 srb_t *sp = data;
2367 struct srb_iocb *elsio = &sp->u.iocb_cmd;
2368
2369 kfree(sp->fcport);
2370
2371 if (elsio->u.els_logo.els_logo_pyld)
2372 dma_free_coherent(&sp->vha->hw->pdev->dev, DMA_POOL_SIZE,
2373 elsio->u.els_logo.els_logo_pyld,
2374 elsio->u.els_logo.els_logo_pyld_dma);
2375
2376 del_timer(&elsio->timer);
2377 qla2x00_rel_sp(sp);
2378 }
2379
2380 static void
2381 qla2x00_els_dcmd_iocb_timeout(void *data)
2382 {
2383 srb_t *sp = data;
2384 fc_port_t *fcport = sp->fcport;
2385 struct scsi_qla_host *vha = sp->vha;
2386 struct srb_iocb *lio = &sp->u.iocb_cmd;
2387
2388 ql_dbg(ql_dbg_io, vha, 0x3069,
2389 "%s Timeout, hdl=%x, portid=%02x%02x%02x\n",
2390 sp->name, sp->handle, fcport->d_id.b.domain, fcport->d_id.b.area,
2391 fcport->d_id.b.al_pa);
2392
2393 complete(&lio->u.els_logo.comp);
2394 }
2395
2396 static void
2397 qla2x00_els_dcmd_sp_done(void *ptr, int res)
2398 {
2399 srb_t *sp = ptr;
2400 fc_port_t *fcport = sp->fcport;
2401 struct srb_iocb *lio = &sp->u.iocb_cmd;
2402 struct scsi_qla_host *vha = sp->vha;
2403
2404 ql_dbg(ql_dbg_io, vha, 0x3072,
2405 "%s hdl=%x, portid=%02x%02x%02x done\n",
2406 sp->name, sp->handle, fcport->d_id.b.domain,
2407 fcport->d_id.b.area, fcport->d_id.b.al_pa);
2408
2409 complete(&lio->u.els_logo.comp);
2410 }
2411
2412 int
2413 qla24xx_els_dcmd_iocb(scsi_qla_host_t *vha, int els_opcode,
2414 port_id_t remote_did)
2415 {
2416 srb_t *sp;
2417 fc_port_t *fcport = NULL;
2418 struct srb_iocb *elsio = NULL;
2419 struct qla_hw_data *ha = vha->hw;
2420 struct els_logo_payload logo_pyld;
2421 int rval = QLA_SUCCESS;
2422
2423 fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
2424 if (!fcport) {
2425 ql_log(ql_log_info, vha, 0x70e5, "fcport allocation failed\n");
2426 return -ENOMEM;
2427 }
2428
2429 /* Alloc SRB structure */
2430 sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
2431 if (!sp) {
2432 kfree(fcport);
2433 ql_log(ql_log_info, vha, 0x70e6,
2434 "SRB allocation failed\n");
2435 return -ENOMEM;
2436 }
2437
2438 elsio = &sp->u.iocb_cmd;
2439 fcport->loop_id = 0xFFFF;
2440 fcport->d_id.b.domain = remote_did.b.domain;
2441 fcport->d_id.b.area = remote_did.b.area;
2442 fcport->d_id.b.al_pa = remote_did.b.al_pa;
2443
2444 ql_dbg(ql_dbg_io, vha, 0x3073, "portid=%02x%02x%02x done\n",
2445 fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa);
2446
2447 sp->type = SRB_ELS_DCMD;
2448 sp->name = "ELS_DCMD";
2449 sp->fcport = fcport;
2450 elsio->timeout = qla2x00_els_dcmd_iocb_timeout;
2451 qla2x00_init_timer(sp, ELS_DCMD_TIMEOUT);
2452 init_completion(&sp->u.iocb_cmd.u.els_logo.comp);
2453 sp->done = qla2x00_els_dcmd_sp_done;
2454 sp->free = qla2x00_els_dcmd_sp_free;
2455
2456 elsio->u.els_logo.els_logo_pyld = dma_alloc_coherent(&ha->pdev->dev,
2457 DMA_POOL_SIZE, &elsio->u.els_logo.els_logo_pyld_dma,
2458 GFP_KERNEL);
2459
2460 if (!elsio->u.els_logo.els_logo_pyld) {
2461 sp->free(sp);
2462 return QLA_FUNCTION_FAILED;
2463 }
2464
2465 memset(&logo_pyld, 0, sizeof(struct els_logo_payload));
2466
2467 elsio->u.els_logo.els_cmd = els_opcode;
2468 logo_pyld.opcode = els_opcode;
2469 logo_pyld.s_id[0] = vha->d_id.b.al_pa;
2470 logo_pyld.s_id[1] = vha->d_id.b.area;
2471 logo_pyld.s_id[2] = vha->d_id.b.domain;
2472 host_to_fcp_swap(logo_pyld.s_id, sizeof(uint32_t));
2473 memcpy(&logo_pyld.wwpn, vha->port_name, WWN_SIZE);
2474
2475 memcpy(elsio->u.els_logo.els_logo_pyld, &logo_pyld,
2476 sizeof(struct els_logo_payload));
2477
2478 rval = qla2x00_start_sp(sp);
2479 if (rval != QLA_SUCCESS) {
2480 sp->free(sp);
2481 return QLA_FUNCTION_FAILED;
2482 }
2483
2484 ql_dbg(ql_dbg_io, vha, 0x3074,
2485 "%s LOGO sent, hdl=%x, loopid=%x, portid=%02x%02x%02x.\n",
2486 sp->name, sp->handle, fcport->loop_id, fcport->d_id.b.domain,
2487 fcport->d_id.b.area, fcport->d_id.b.al_pa);
2488
2489 wait_for_completion(&elsio->u.els_logo.comp);
2490
2491 sp->free(sp);
2492 return rval;
2493 }
2494
2495 static void
2496 qla24xx_els_logo_iocb(srb_t *sp, struct els_entry_24xx *els_iocb)
2497 {
2498 scsi_qla_host_t *vha = sp->vha;
2499 struct srb_iocb *elsio = &sp->u.iocb_cmd;
2500
2501 els_iocb->entry_type = ELS_IOCB_TYPE;
2502 els_iocb->entry_count = 1;
2503 els_iocb->sys_define = 0;
2504 els_iocb->entry_status = 0;
2505 els_iocb->handle = sp->handle;
2506 els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2507 els_iocb->tx_dsd_count = 1;
2508 els_iocb->vp_index = vha->vp_idx;
2509 els_iocb->sof_type = EST_SOFI3;
2510 els_iocb->rx_dsd_count = 0;
2511 els_iocb->opcode = elsio->u.els_logo.els_cmd;
2512
2513 els_iocb->port_id[0] = sp->fcport->d_id.b.al_pa;
2514 els_iocb->port_id[1] = sp->fcport->d_id.b.area;
2515 els_iocb->port_id[2] = sp->fcport->d_id.b.domain;
2516 els_iocb->s_id[0] = vha->d_id.b.al_pa;
2517 els_iocb->s_id[1] = vha->d_id.b.area;
2518 els_iocb->s_id[2] = vha->d_id.b.domain;
2519 els_iocb->control_flags = 0;
2520
2521 if (elsio->u.els_logo.els_cmd == ELS_DCMD_PLOGI) {
2522 els_iocb->tx_byte_count = els_iocb->tx_len =
2523 sizeof(struct els_plogi_payload);
2524 els_iocb->tx_address[0] =
2525 cpu_to_le32(LSD(elsio->u.els_plogi.els_plogi_pyld_dma));
2526 els_iocb->tx_address[1] =
2527 cpu_to_le32(MSD(elsio->u.els_plogi.els_plogi_pyld_dma));
2528
2529 els_iocb->rx_dsd_count = 1;
2530 els_iocb->rx_byte_count = els_iocb->rx_len =
2531 sizeof(struct els_plogi_payload);
2532 els_iocb->rx_address[0] =
2533 cpu_to_le32(LSD(elsio->u.els_plogi.els_resp_pyld_dma));
2534 els_iocb->rx_address[1] =
2535 cpu_to_le32(MSD(elsio->u.els_plogi.els_resp_pyld_dma));
2536
2537 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3073,
2538 "PLOGI ELS IOCB:\n");
2539 ql_dump_buffer(ql_log_info, vha, 0x0109,
2540 (uint8_t *)els_iocb, 0x70);
2541 } else {
2542 els_iocb->tx_byte_count = sizeof(struct els_logo_payload);
2543 els_iocb->tx_address[0] =
2544 cpu_to_le32(LSD(elsio->u.els_logo.els_logo_pyld_dma));
2545 els_iocb->tx_address[1] =
2546 cpu_to_le32(MSD(elsio->u.els_logo.els_logo_pyld_dma));
2547 els_iocb->tx_len = cpu_to_le32(sizeof(struct els_logo_payload));
2548
2549 els_iocb->rx_byte_count = 0;
2550 els_iocb->rx_address[0] = 0;
2551 els_iocb->rx_address[1] = 0;
2552 els_iocb->rx_len = 0;
2553 }
2554
2555 sp->vha->qla_stats.control_requests++;
2556 }
2557
2558 static void
2559 qla2x00_els_dcmd2_iocb_timeout(void *data)
2560 {
2561 srb_t *sp = data;
2562 fc_port_t *fcport = sp->fcport;
2563 struct scsi_qla_host *vha = sp->vha;
2564 struct qla_hw_data *ha = vha->hw;
2565 unsigned long flags = 0;
2566 int res;
2567
2568 ql_dbg(ql_dbg_io + ql_dbg_disc, vha, 0x3069,
2569 "%s hdl=%x ELS Timeout, %8phC portid=%06x\n",
2570 sp->name, sp->handle, fcport->port_name, fcport->d_id.b24);
2571
2572 /* Abort the exchange */
2573 spin_lock_irqsave(&ha->hardware_lock, flags);
2574 res = ha->isp_ops->abort_command(sp);
2575 ql_dbg(ql_dbg_io, vha, 0x3070,
2576 "mbx abort_command %s\n",
2577 (res == QLA_SUCCESS) ? "successful" : "failed");
2578 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2579
2580 sp->done(sp, QLA_FUNCTION_TIMEOUT);
2581 }
2582
2583 static void
2584 qla2x00_els_dcmd2_sp_done(void *ptr, int res)
2585 {
2586 srb_t *sp = ptr;
2587 fc_port_t *fcport = sp->fcport;
2588 struct srb_iocb *lio = &sp->u.iocb_cmd;
2589 struct scsi_qla_host *vha = sp->vha;
2590 struct event_arg ea;
2591 struct qla_work_evt *e;
2592
2593 ql_dbg(ql_dbg_disc, vha, 0x3072,
2594 "%s ELS done rc %d hdl=%x, portid=%06x %8phC\n",
2595 sp->name, res, sp->handle, fcport->d_id.b24, fcport->port_name);
2596
2597 fcport->flags &= ~(FCF_ASYNC_SENT|FCF_ASYNC_ACTIVE);
2598 del_timer(&sp->u.iocb_cmd.timer);
2599
2600 if (sp->flags & SRB_WAKEUP_ON_COMP)
2601 complete(&lio->u.els_plogi.comp);
2602 else {
2603 if (res) {
2604 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2605 } else {
2606 memset(&ea, 0, sizeof(ea));
2607 ea.fcport = fcport;
2608 ea.rc = res;
2609 ea.event = FCME_ELS_PLOGI_DONE;
2610 qla2x00_fcport_event_handler(vha, &ea);
2611 }
2612
2613 e = qla2x00_alloc_work(vha, QLA_EVT_UNMAP);
2614 if (!e) {
2615 struct srb_iocb *elsio = &sp->u.iocb_cmd;
2616
2617 if (elsio->u.els_plogi.els_plogi_pyld)
2618 dma_free_coherent(&sp->vha->hw->pdev->dev,
2619 elsio->u.els_plogi.tx_size,
2620 elsio->u.els_plogi.els_plogi_pyld,
2621 elsio->u.els_plogi.els_plogi_pyld_dma);
2622
2623 if (elsio->u.els_plogi.els_resp_pyld)
2624 dma_free_coherent(&sp->vha->hw->pdev->dev,
2625 elsio->u.els_plogi.rx_size,
2626 elsio->u.els_plogi.els_resp_pyld,
2627 elsio->u.els_plogi.els_resp_pyld_dma);
2628 sp->free(sp);
2629 return;
2630 }
2631 e->u.iosb.sp = sp;
2632 qla2x00_post_work(vha, e);
2633 }
2634 }
2635
2636 int
2637 qla24xx_els_dcmd2_iocb(scsi_qla_host_t *vha, int els_opcode,
2638 fc_port_t *fcport, bool wait)
2639 {
2640 srb_t *sp;
2641 struct srb_iocb *elsio = NULL;
2642 struct qla_hw_data *ha = vha->hw;
2643 int rval = QLA_SUCCESS;
2644 void *ptr, *resp_ptr;
2645 dma_addr_t ptr_dma;
2646
2647 /* Alloc SRB structure */
2648 sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
2649 if (!sp) {
2650 ql_log(ql_log_info, vha, 0x70e6,
2651 "SRB allocation failed\n");
2652 return -ENOMEM;
2653 }
2654
2655 elsio = &sp->u.iocb_cmd;
2656 ql_dbg(ql_dbg_io, vha, 0x3073,
2657 "Enter: PLOGI portid=%06x\n", fcport->d_id.b24);
2658
2659 fcport->flags |= FCF_ASYNC_SENT;
2660 sp->type = SRB_ELS_DCMD;
2661 sp->name = "ELS_DCMD";
2662 sp->fcport = fcport;
2663
2664 elsio->timeout = qla2x00_els_dcmd2_iocb_timeout;
2665 init_completion(&elsio->u.els_plogi.comp);
2666 if (wait)
2667 sp->flags = SRB_WAKEUP_ON_COMP;
2668
2669 qla2x00_init_timer(sp, ELS_DCMD_TIMEOUT + 2);
2670
2671 sp->done = qla2x00_els_dcmd2_sp_done;
2672 elsio->u.els_plogi.tx_size = elsio->u.els_plogi.rx_size = DMA_POOL_SIZE;
2673
2674 ptr = elsio->u.els_plogi.els_plogi_pyld =
2675 dma_alloc_coherent(&ha->pdev->dev, DMA_POOL_SIZE,
2676 &elsio->u.els_plogi.els_plogi_pyld_dma, GFP_KERNEL);
2677 ptr_dma = elsio->u.els_plogi.els_plogi_pyld_dma;
2678
2679 if (!elsio->u.els_plogi.els_plogi_pyld) {
2680 rval = QLA_FUNCTION_FAILED;
2681 goto out;
2682 }
2683
2684 resp_ptr = elsio->u.els_plogi.els_resp_pyld =
2685 dma_alloc_coherent(&ha->pdev->dev, DMA_POOL_SIZE,
2686 &elsio->u.els_plogi.els_resp_pyld_dma, GFP_KERNEL);
2687
2688 if (!elsio->u.els_plogi.els_resp_pyld) {
2689 rval = QLA_FUNCTION_FAILED;
2690 goto out;
2691 }
2692
2693 ql_dbg(ql_dbg_io, vha, 0x3073, "PLOGI %p %p\n", ptr, resp_ptr);
2694
2695 memset(ptr, 0, sizeof(struct els_plogi_payload));
2696 memset(resp_ptr, 0, sizeof(struct els_plogi_payload));
2697 memcpy(elsio->u.els_plogi.els_plogi_pyld->data,
2698 &ha->plogi_els_payld.data,
2699 sizeof(elsio->u.els_plogi.els_plogi_pyld->data));
2700
2701 elsio->u.els_plogi.els_cmd = els_opcode;
2702 elsio->u.els_plogi.els_plogi_pyld->opcode = els_opcode;
2703
2704 ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x3073, "PLOGI buffer:\n");
2705 ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x0109,
2706 (uint8_t *)elsio->u.els_plogi.els_plogi_pyld, 0x70);
2707
2708 rval = qla2x00_start_sp(sp);
2709 if (rval != QLA_SUCCESS) {
2710 rval = QLA_FUNCTION_FAILED;
2711 } else {
2712 ql_dbg(ql_dbg_disc, vha, 0x3074,
2713 "%s PLOGI sent, hdl=%x, loopid=%x, to port_id %06x from port_id %06x\n",
2714 sp->name, sp->handle, fcport->loop_id,
2715 fcport->d_id.b24, vha->d_id.b24);
2716 }
2717
2718 if (wait) {
2719 wait_for_completion(&elsio->u.els_plogi.comp);
2720
2721 if (elsio->u.els_plogi.comp_status != CS_COMPLETE)
2722 rval = QLA_FUNCTION_FAILED;
2723 } else {
2724 goto done;
2725 }
2726
2727 out:
2728 fcport->flags &= ~(FCF_ASYNC_SENT);
2729 if (elsio->u.els_plogi.els_plogi_pyld)
2730 dma_free_coherent(&sp->vha->hw->pdev->dev,
2731 elsio->u.els_plogi.tx_size,
2732 elsio->u.els_plogi.els_plogi_pyld,
2733 elsio->u.els_plogi.els_plogi_pyld_dma);
2734
2735 if (elsio->u.els_plogi.els_resp_pyld)
2736 dma_free_coherent(&sp->vha->hw->pdev->dev,
2737 elsio->u.els_plogi.rx_size,
2738 elsio->u.els_plogi.els_resp_pyld,
2739 elsio->u.els_plogi.els_resp_pyld_dma);
2740
2741 sp->free(sp);
2742 done:
2743 return rval;
2744 }
2745
2746 static void
2747 qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb)
2748 {
2749 struct bsg_job *bsg_job = sp->u.bsg_job;
2750 struct fc_bsg_request *bsg_request = bsg_job->request;
2751
2752 els_iocb->entry_type = ELS_IOCB_TYPE;
2753 els_iocb->entry_count = 1;
2754 els_iocb->sys_define = 0;
2755 els_iocb->entry_status = 0;
2756 els_iocb->handle = sp->handle;
2757 els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2758 els_iocb->tx_dsd_count = cpu_to_le16(bsg_job->request_payload.sg_cnt);
2759 els_iocb->vp_index = sp->vha->vp_idx;
2760 els_iocb->sof_type = EST_SOFI3;
2761 els_iocb->rx_dsd_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt);
2762
2763 els_iocb->opcode =
2764 sp->type == SRB_ELS_CMD_RPT ?
2765 bsg_request->rqst_data.r_els.els_code :
2766 bsg_request->rqst_data.h_els.command_code;
2767 els_iocb->port_id[0] = sp->fcport->d_id.b.al_pa;
2768 els_iocb->port_id[1] = sp->fcport->d_id.b.area;
2769 els_iocb->port_id[2] = sp->fcport->d_id.b.domain;
2770 els_iocb->control_flags = 0;
2771 els_iocb->rx_byte_count =
2772 cpu_to_le32(bsg_job->reply_payload.payload_len);
2773 els_iocb->tx_byte_count =
2774 cpu_to_le32(bsg_job->request_payload.payload_len);
2775
2776 els_iocb->tx_address[0] = cpu_to_le32(LSD(sg_dma_address
2777 (bsg_job->request_payload.sg_list)));
2778 els_iocb->tx_address[1] = cpu_to_le32(MSD(sg_dma_address
2779 (bsg_job->request_payload.sg_list)));
2780 els_iocb->tx_len = cpu_to_le32(sg_dma_len
2781 (bsg_job->request_payload.sg_list));
2782
2783 els_iocb->rx_address[0] = cpu_to_le32(LSD(sg_dma_address
2784 (bsg_job->reply_payload.sg_list)));
2785 els_iocb->rx_address[1] = cpu_to_le32(MSD(sg_dma_address
2786 (bsg_job->reply_payload.sg_list)));
2787 els_iocb->rx_len = cpu_to_le32(sg_dma_len
2788 (bsg_job->reply_payload.sg_list));
2789
2790 sp->vha->qla_stats.control_requests++;
2791 }
2792
2793 static void
2794 qla2x00_ct_iocb(srb_t *sp, ms_iocb_entry_t *ct_iocb)
2795 {
2796 uint16_t avail_dsds;
2797 uint32_t *cur_dsd;
2798 struct scatterlist *sg;
2799 int index;
2800 uint16_t tot_dsds;
2801 scsi_qla_host_t *vha = sp->vha;
2802 struct qla_hw_data *ha = vha->hw;
2803 struct bsg_job *bsg_job = sp->u.bsg_job;
2804 int loop_iterartion = 0;
2805 int entry_count = 1;
2806
2807 memset(ct_iocb, 0, sizeof(ms_iocb_entry_t));
2808 ct_iocb->entry_type = CT_IOCB_TYPE;
2809 ct_iocb->entry_status = 0;
2810 ct_iocb->handle1 = sp->handle;
2811 SET_TARGET_ID(ha, ct_iocb->loop_id, sp->fcport->loop_id);
2812 ct_iocb->status = cpu_to_le16(0);
2813 ct_iocb->control_flags = cpu_to_le16(0);
2814 ct_iocb->timeout = 0;
2815 ct_iocb->cmd_dsd_count =
2816 cpu_to_le16(bsg_job->request_payload.sg_cnt);
2817 ct_iocb->total_dsd_count =
2818 cpu_to_le16(bsg_job->request_payload.sg_cnt + 1);
2819 ct_iocb->req_bytecount =
2820 cpu_to_le32(bsg_job->request_payload.payload_len);
2821 ct_iocb->rsp_bytecount =
2822 cpu_to_le32(bsg_job->reply_payload.payload_len);
2823
2824 ct_iocb->dseg_req_address[0] = cpu_to_le32(LSD(sg_dma_address
2825 (bsg_job->request_payload.sg_list)));
2826 ct_iocb->dseg_req_address[1] = cpu_to_le32(MSD(sg_dma_address
2827 (bsg_job->request_payload.sg_list)));
2828 ct_iocb->dseg_req_length = ct_iocb->req_bytecount;
2829
2830 ct_iocb->dseg_rsp_address[0] = cpu_to_le32(LSD(sg_dma_address
2831 (bsg_job->reply_payload.sg_list)));
2832 ct_iocb->dseg_rsp_address[1] = cpu_to_le32(MSD(sg_dma_address
2833 (bsg_job->reply_payload.sg_list)));
2834 ct_iocb->dseg_rsp_length = ct_iocb->rsp_bytecount;
2835
2836 avail_dsds = 1;
2837 cur_dsd = (uint32_t *)ct_iocb->dseg_rsp_address;
2838 index = 0;
2839 tot_dsds = bsg_job->reply_payload.sg_cnt;
2840
2841 for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) {
2842 dma_addr_t sle_dma;
2843 cont_a64_entry_t *cont_pkt;
2844
2845 /* Allocate additional continuation packets? */
2846 if (avail_dsds == 0) {
2847 /*
2848 * Five DSDs are available in the Cont.
2849 * Type 1 IOCB.
2850 */
2851 cont_pkt = qla2x00_prep_cont_type1_iocb(vha,
2852 vha->hw->req_q_map[0]);
2853 cur_dsd = (uint32_t *) cont_pkt->dseg_0_address;
2854 avail_dsds = 5;
2855 entry_count++;
2856 }
2857
2858 sle_dma = sg_dma_address(sg);
2859 *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
2860 *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
2861 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
2862 loop_iterartion++;
2863 avail_dsds--;
2864 }
2865 ct_iocb->entry_count = entry_count;
2866
2867 sp->vha->qla_stats.control_requests++;
2868 }
2869
2870 static void
2871 qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb)
2872 {
2873 uint16_t avail_dsds;
2874 uint32_t *cur_dsd;
2875 struct scatterlist *sg;
2876 int index;
2877 uint16_t cmd_dsds, rsp_dsds;
2878 scsi_qla_host_t *vha = sp->vha;
2879 struct qla_hw_data *ha = vha->hw;
2880 struct bsg_job *bsg_job = sp->u.bsg_job;
2881 int entry_count = 1;
2882 cont_a64_entry_t *cont_pkt = NULL;
2883
2884 ct_iocb->entry_type = CT_IOCB_TYPE;
2885 ct_iocb->entry_status = 0;
2886 ct_iocb->sys_define = 0;
2887 ct_iocb->handle = sp->handle;
2888
2889 ct_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2890 ct_iocb->vp_index = sp->vha->vp_idx;
2891 ct_iocb->comp_status = cpu_to_le16(0);
2892
2893 cmd_dsds = bsg_job->request_payload.sg_cnt;
2894 rsp_dsds = bsg_job->reply_payload.sg_cnt;
2895
2896 ct_iocb->cmd_dsd_count = cpu_to_le16(cmd_dsds);
2897 ct_iocb->timeout = 0;
2898 ct_iocb->rsp_dsd_count = cpu_to_le16(rsp_dsds);
2899 ct_iocb->cmd_byte_count =
2900 cpu_to_le32(bsg_job->request_payload.payload_len);
2901
2902 avail_dsds = 2;
2903 cur_dsd = (uint32_t *)ct_iocb->dseg_0_address;
2904 index = 0;
2905
2906 for_each_sg(bsg_job->request_payload.sg_list, sg, cmd_dsds, index) {
2907 dma_addr_t sle_dma;
2908
2909 /* Allocate additional continuation packets? */
2910 if (avail_dsds == 0) {
2911 /*
2912 * Five DSDs are available in the Cont.
2913 * Type 1 IOCB.
2914 */
2915 cont_pkt = qla2x00_prep_cont_type1_iocb(
2916 vha, ha->req_q_map[0]);
2917 cur_dsd = (uint32_t *) cont_pkt->dseg_0_address;
2918 avail_dsds = 5;
2919 entry_count++;
2920 }
2921
2922 sle_dma = sg_dma_address(sg);
2923 *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
2924 *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
2925 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
2926 avail_dsds--;
2927 }
2928
2929 index = 0;
2930
2931 for_each_sg(bsg_job->reply_payload.sg_list, sg, rsp_dsds, index) {
2932 dma_addr_t sle_dma;
2933
2934 /* Allocate additional continuation packets? */
2935 if (avail_dsds == 0) {
2936 /*
2937 * Five DSDs are available in the Cont.
2938 * Type 1 IOCB.
2939 */
2940 cont_pkt = qla2x00_prep_cont_type1_iocb(vha,
2941 ha->req_q_map[0]);
2942 cur_dsd = (uint32_t *) cont_pkt->dseg_0_address;
2943 avail_dsds = 5;
2944 entry_count++;
2945 }
2946
2947 sle_dma = sg_dma_address(sg);
2948 *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
2949 *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
2950 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
2951 avail_dsds--;
2952 }
2953 ct_iocb->entry_count = entry_count;
2954 }
2955
2956 /*
2957 * qla82xx_start_scsi() - Send a SCSI command to the ISP
2958 * @sp: command to send to the ISP
2959 *
2960 * Returns non-zero if a failure occurred, else zero.
2961 */
2962 int
2963 qla82xx_start_scsi(srb_t *sp)
2964 {
2965 int nseg;
2966 unsigned long flags;
2967 struct scsi_cmnd *cmd;
2968 uint32_t *clr_ptr;
2969 uint32_t index;
2970 uint32_t handle;
2971 uint16_t cnt;
2972 uint16_t req_cnt;
2973 uint16_t tot_dsds;
2974 struct device_reg_82xx __iomem *reg;
2975 uint32_t dbval;
2976 uint32_t *fcp_dl;
2977 uint8_t additional_cdb_len;
2978 struct ct6_dsd *ctx;
2979 struct scsi_qla_host *vha = sp->vha;
2980 struct qla_hw_data *ha = vha->hw;
2981 struct req_que *req = NULL;
2982 struct rsp_que *rsp = NULL;
2983
2984 /* Setup device pointers. */
2985 reg = &ha->iobase->isp82;
2986 cmd = GET_CMD_SP(sp);
2987 req = vha->req;
2988 rsp = ha->rsp_q_map[0];
2989
2990 /* So we know we haven't pci_map'ed anything yet */
2991 tot_dsds = 0;
2992
2993 dbval = 0x04 | (ha->portnum << 5);
2994
2995 /* Send marker if required */
2996 if (vha->marker_needed != 0) {
2997 if (qla2x00_marker(vha, req,
2998 rsp, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) {
2999 ql_log(ql_log_warn, vha, 0x300c,
3000 "qla2x00_marker failed for cmd=%p.\n", cmd);
3001 return QLA_FUNCTION_FAILED;
3002 }
3003 vha->marker_needed = 0;
3004 }
3005
3006 /* Acquire ring specific lock */
3007 spin_lock_irqsave(&ha->hardware_lock, flags);
3008
3009 /* Check for room in outstanding command list. */
3010 handle = req->current_outstanding_cmd;
3011 for (index = 1; index < req->num_outstanding_cmds; index++) {
3012 handle++;
3013 if (handle == req->num_outstanding_cmds)
3014 handle = 1;
3015 if (!req->outstanding_cmds[handle])
3016 break;
3017 }
3018 if (index == req->num_outstanding_cmds)
3019 goto queuing_error;
3020
3021 /* Map the sg table so we have an accurate count of sg entries needed */
3022 if (scsi_sg_count(cmd)) {
3023 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
3024 scsi_sg_count(cmd), cmd->sc_data_direction);
3025 if (unlikely(!nseg))
3026 goto queuing_error;
3027 } else
3028 nseg = 0;
3029
3030 tot_dsds = nseg;
3031
3032 if (tot_dsds > ql2xshiftctondsd) {
3033 struct cmd_type_6 *cmd_pkt;
3034 uint16_t more_dsd_lists = 0;
3035 struct dsd_dma *dsd_ptr;
3036 uint16_t i;
3037
3038 more_dsd_lists = qla24xx_calc_dsd_lists(tot_dsds);
3039 if ((more_dsd_lists + ha->gbl_dsd_inuse) >= NUM_DSD_CHAIN) {
3040 ql_dbg(ql_dbg_io, vha, 0x300d,
3041 "Num of DSD list %d is than %d for cmd=%p.\n",
3042 more_dsd_lists + ha->gbl_dsd_inuse, NUM_DSD_CHAIN,
3043 cmd);
3044 goto queuing_error;
3045 }
3046
3047 if (more_dsd_lists <= ha->gbl_dsd_avail)
3048 goto sufficient_dsds;
3049 else
3050 more_dsd_lists -= ha->gbl_dsd_avail;
3051
3052 for (i = 0; i < more_dsd_lists; i++) {
3053 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
3054 if (!dsd_ptr) {
3055 ql_log(ql_log_fatal, vha, 0x300e,
3056 "Failed to allocate memory for dsd_dma "
3057 "for cmd=%p.\n", cmd);
3058 goto queuing_error;
3059 }
3060
3061 dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool,
3062 GFP_ATOMIC, &dsd_ptr->dsd_list_dma);
3063 if (!dsd_ptr->dsd_addr) {
3064 kfree(dsd_ptr);
3065 ql_log(ql_log_fatal, vha, 0x300f,
3066 "Failed to allocate memory for dsd_addr "
3067 "for cmd=%p.\n", cmd);
3068 goto queuing_error;
3069 }
3070 list_add_tail(&dsd_ptr->list, &ha->gbl_dsd_list);
3071 ha->gbl_dsd_avail++;
3072 }
3073
3074 sufficient_dsds:
3075 req_cnt = 1;
3076
3077 if (req->cnt < (req_cnt + 2)) {
3078 cnt = (uint16_t)RD_REG_DWORD_RELAXED(
3079 &reg->req_q_out[0]);
3080 if (req->ring_index < cnt)
3081 req->cnt = cnt - req->ring_index;
3082 else
3083 req->cnt = req->length -
3084 (req->ring_index - cnt);
3085 if (req->cnt < (req_cnt + 2))
3086 goto queuing_error;
3087 }
3088
3089 ctx = sp->u.scmd.ctx =
3090 mempool_alloc(ha->ctx_mempool, GFP_ATOMIC);
3091 if (!ctx) {
3092 ql_log(ql_log_fatal, vha, 0x3010,
3093 "Failed to allocate ctx for cmd=%p.\n", cmd);
3094 goto queuing_error;
3095 }
3096
3097 memset(ctx, 0, sizeof(struct ct6_dsd));
3098 ctx->fcp_cmnd = dma_pool_zalloc(ha->fcp_cmnd_dma_pool,
3099 GFP_ATOMIC, &ctx->fcp_cmnd_dma);
3100 if (!ctx->fcp_cmnd) {
3101 ql_log(ql_log_fatal, vha, 0x3011,
3102 "Failed to allocate fcp_cmnd for cmd=%p.\n", cmd);
3103 goto queuing_error;
3104 }
3105
3106 /* Initialize the DSD list and dma handle */
3107 INIT_LIST_HEAD(&ctx->dsd_list);
3108 ctx->dsd_use_cnt = 0;
3109
3110 if (cmd->cmd_len > 16) {
3111 additional_cdb_len = cmd->cmd_len - 16;
3112 if ((cmd->cmd_len % 4) != 0) {
3113 /* SCSI command bigger than 16 bytes must be
3114 * multiple of 4
3115 */
3116 ql_log(ql_log_warn, vha, 0x3012,
3117 "scsi cmd len %d not multiple of 4 "
3118 "for cmd=%p.\n", cmd->cmd_len, cmd);
3119 goto queuing_error_fcp_cmnd;
3120 }
3121 ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4;
3122 } else {
3123 additional_cdb_len = 0;
3124 ctx->fcp_cmnd_len = 12 + 16 + 4;
3125 }
3126
3127 cmd_pkt = (struct cmd_type_6 *)req->ring_ptr;
3128 cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
3129
3130 /* Zero out remaining portion of packet. */
3131 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */
3132 clr_ptr = (uint32_t *)cmd_pkt + 2;
3133 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
3134 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
3135
3136 /* Set NPORT-ID and LUN number*/
3137 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
3138 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
3139 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
3140 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
3141 cmd_pkt->vp_index = sp->vha->vp_idx;
3142
3143 /* Build IOCB segments */
3144 if (qla24xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds))
3145 goto queuing_error_fcp_cmnd;
3146
3147 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
3148 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
3149
3150 /* build FCP_CMND IU */
3151 int_to_scsilun(cmd->device->lun, &ctx->fcp_cmnd->lun);
3152 ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len;
3153
3154 if (cmd->sc_data_direction == DMA_TO_DEVICE)
3155 ctx->fcp_cmnd->additional_cdb_len |= 1;
3156 else if (cmd->sc_data_direction == DMA_FROM_DEVICE)
3157 ctx->fcp_cmnd->additional_cdb_len |= 2;
3158
3159 /* Populate the FCP_PRIO. */
3160 if (ha->flags.fcp_prio_enabled)
3161 ctx->fcp_cmnd->task_attribute |=
3162 sp->fcport->fcp_prio << 3;
3163
3164 memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len);
3165
3166 fcp_dl = (uint32_t *)(ctx->fcp_cmnd->cdb + 16 +
3167 additional_cdb_len);
3168 *fcp_dl = htonl((uint32_t)scsi_bufflen(cmd));
3169
3170 cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len);
3171 cmd_pkt->fcp_cmnd_dseg_address[0] =
3172 cpu_to_le32(LSD(ctx->fcp_cmnd_dma));
3173 cmd_pkt->fcp_cmnd_dseg_address[1] =
3174 cpu_to_le32(MSD(ctx->fcp_cmnd_dma));
3175
3176 sp->flags |= SRB_FCP_CMND_DMA_VALID;
3177 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
3178 /* Set total data segment count. */
3179 cmd_pkt->entry_count = (uint8_t)req_cnt;
3180 /* Specify response queue number where
3181 * completion should happen
3182 */
3183 cmd_pkt->entry_status = (uint8_t) rsp->id;
3184 } else {
3185 struct cmd_type_7 *cmd_pkt;
3186 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
3187 if (req->cnt < (req_cnt + 2)) {
3188 cnt = (uint16_t)RD_REG_DWORD_RELAXED(
3189 &reg->req_q_out[0]);
3190 if (req->ring_index < cnt)
3191 req->cnt = cnt - req->ring_index;
3192 else
3193 req->cnt = req->length -
3194 (req->ring_index - cnt);
3195 }
3196 if (req->cnt < (req_cnt + 2))
3197 goto queuing_error;
3198
3199 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr;
3200 cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
3201
3202 /* Zero out remaining portion of packet. */
3203 /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/
3204 clr_ptr = (uint32_t *)cmd_pkt + 2;
3205 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
3206 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
3207
3208 /* Set NPORT-ID and LUN number*/
3209 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
3210 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
3211 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
3212 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
3213 cmd_pkt->vp_index = sp->vha->vp_idx;
3214
3215 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
3216 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun,
3217 sizeof(cmd_pkt->lun));
3218
3219 /* Populate the FCP_PRIO. */
3220 if (ha->flags.fcp_prio_enabled)
3221 cmd_pkt->task |= sp->fcport->fcp_prio << 3;
3222
3223 /* Load SCSI command packet. */
3224 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len);
3225 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb));
3226
3227 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
3228
3229 /* Build IOCB segments */
3230 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req);
3231
3232 /* Set total data segment count. */
3233 cmd_pkt->entry_count = (uint8_t)req_cnt;
3234 /* Specify response queue number where
3235 * completion should happen.
3236 */
3237 cmd_pkt->entry_status = (uint8_t) rsp->id;
3238
3239 }
3240 /* Build command packet. */
3241 req->current_outstanding_cmd = handle;
3242 req->outstanding_cmds[handle] = sp;
3243 sp->handle = handle;
3244 cmd->host_scribble = (unsigned char *)(unsigned long)handle;
3245 req->cnt -= req_cnt;
3246 wmb();
3247
3248 /* Adjust ring index. */
3249 req->ring_index++;
3250 if (req->ring_index == req->length) {
3251 req->ring_index = 0;
3252 req->ring_ptr = req->ring;
3253 } else
3254 req->ring_ptr++;
3255
3256 sp->flags |= SRB_DMA_VALID;
3257
3258 /* Set chip new ring index. */
3259 /* write, read and verify logic */
3260 dbval = dbval | (req->id << 8) | (req->ring_index << 16);
3261 if (ql2xdbwr)
3262 qla82xx_wr_32(ha, (uintptr_t __force)ha->nxdb_wr_ptr, dbval);
3263 else {
3264 WRT_REG_DWORD(ha->nxdb_wr_ptr, dbval);
3265 wmb();
3266 while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) {
3267 WRT_REG_DWORD(ha->nxdb_wr_ptr, dbval);
3268 wmb();
3269 }
3270 }
3271
3272 /* Manage unprocessed RIO/ZIO commands in response queue. */
3273 if (vha->flags.process_response_queue &&
3274 rsp->ring_ptr->signature != RESPONSE_PROCESSED)
3275 qla24xx_process_response_queue(vha, rsp);
3276
3277 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3278 return QLA_SUCCESS;
3279
3280 queuing_error_fcp_cmnd:
3281 dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma);
3282 queuing_error:
3283 if (tot_dsds)
3284 scsi_dma_unmap(cmd);
3285
3286 if (sp->u.scmd.ctx) {
3287 mempool_free(sp->u.scmd.ctx, ha->ctx_mempool);
3288 sp->u.scmd.ctx = NULL;
3289 }
3290 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3291
3292 return QLA_FUNCTION_FAILED;
3293 }
3294
3295 static void
3296 qla24xx_abort_iocb(srb_t *sp, struct abort_entry_24xx *abt_iocb)
3297 {
3298 struct srb_iocb *aio = &sp->u.iocb_cmd;
3299 scsi_qla_host_t *vha = sp->vha;
3300 struct req_que *req = sp->qpair->req;
3301
3302 memset(abt_iocb, 0, sizeof(struct abort_entry_24xx));
3303 abt_iocb->entry_type = ABORT_IOCB_TYPE;
3304 abt_iocb->entry_count = 1;
3305 abt_iocb->handle = cpu_to_le32(MAKE_HANDLE(req->id, sp->handle));
3306 if (sp->fcport) {
3307 abt_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
3308 abt_iocb->port_id[0] = sp->fcport->d_id.b.al_pa;
3309 abt_iocb->port_id[1] = sp->fcport->d_id.b.area;
3310 abt_iocb->port_id[2] = sp->fcport->d_id.b.domain;
3311 }
3312 abt_iocb->handle_to_abort =
3313 cpu_to_le32(MAKE_HANDLE(aio->u.abt.req_que_no,
3314 aio->u.abt.cmd_hndl));
3315 abt_iocb->vp_index = vha->vp_idx;
3316 abt_iocb->req_que_no = cpu_to_le16(aio->u.abt.req_que_no);
3317 /* Send the command to the firmware */
3318 wmb();
3319 }
3320
3321 static void
3322 qla2x00_mb_iocb(srb_t *sp, struct mbx_24xx_entry *mbx)
3323 {
3324 int i, sz;
3325
3326 mbx->entry_type = MBX_IOCB_TYPE;
3327 mbx->handle = sp->handle;
3328 sz = min(ARRAY_SIZE(mbx->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.out_mb));
3329
3330 for (i = 0; i < sz; i++)
3331 mbx->mb[i] = cpu_to_le16(sp->u.iocb_cmd.u.mbx.out_mb[i]);
3332 }
3333
3334 static void
3335 qla2x00_ctpthru_cmd_iocb(srb_t *sp, struct ct_entry_24xx *ct_pkt)
3336 {
3337 sp->u.iocb_cmd.u.ctarg.iocb = ct_pkt;
3338 qla24xx_prep_ms_iocb(sp->vha, &sp->u.iocb_cmd.u.ctarg);
3339 ct_pkt->handle = sp->handle;
3340 }
3341
3342 static void qla2x00_send_notify_ack_iocb(srb_t *sp,
3343 struct nack_to_isp *nack)
3344 {
3345 struct imm_ntfy_from_isp *ntfy = sp->u.iocb_cmd.u.nack.ntfy;
3346
3347 nack->entry_type = NOTIFY_ACK_TYPE;
3348 nack->entry_count = 1;
3349 nack->ox_id = ntfy->ox_id;
3350
3351 nack->u.isp24.handle = sp->handle;
3352 nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle;
3353 if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) {
3354 nack->u.isp24.flags = ntfy->u.isp24.flags &
3355 cpu_to_le32(NOTIFY24XX_FLAGS_PUREX_IOCB);
3356 }
3357 nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id;
3358 nack->u.isp24.status = ntfy->u.isp24.status;
3359 nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode;
3360 nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle;
3361 nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address;
3362 nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs;
3363 nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui;
3364 nack->u.isp24.srr_flags = 0;
3365 nack->u.isp24.srr_reject_code = 0;
3366 nack->u.isp24.srr_reject_code_expl = 0;
3367 nack->u.isp24.vp_index = ntfy->u.isp24.vp_index;
3368 }
3369
3370 /*
3371 * Build NVME LS request
3372 */
3373 static int
3374 qla_nvme_ls(srb_t *sp, struct pt_ls4_request *cmd_pkt)
3375 {
3376 struct srb_iocb *nvme;
3377 int rval = QLA_SUCCESS;
3378
3379 nvme = &sp->u.iocb_cmd;
3380 cmd_pkt->entry_type = PT_LS4_REQUEST;
3381 cmd_pkt->entry_count = 1;
3382 cmd_pkt->control_flags = CF_LS4_ORIGINATOR << CF_LS4_SHIFT;
3383
3384 cmd_pkt->timeout = cpu_to_le16(nvme->u.nvme.timeout_sec);
3385 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
3386 cmd_pkt->vp_index = sp->fcport->vha->vp_idx;
3387
3388 cmd_pkt->tx_dseg_count = 1;
3389 cmd_pkt->tx_byte_count = nvme->u.nvme.cmd_len;
3390 cmd_pkt->dseg0_len = nvme->u.nvme.cmd_len;
3391 cmd_pkt->dseg0_address[0] = cpu_to_le32(LSD(nvme->u.nvme.cmd_dma));
3392 cmd_pkt->dseg0_address[1] = cpu_to_le32(MSD(nvme->u.nvme.cmd_dma));
3393
3394 cmd_pkt->rx_dseg_count = 1;
3395 cmd_pkt->rx_byte_count = nvme->u.nvme.rsp_len;
3396 cmd_pkt->dseg1_len = nvme->u.nvme.rsp_len;
3397 cmd_pkt->dseg1_address[0] = cpu_to_le32(LSD(nvme->u.nvme.rsp_dma));
3398 cmd_pkt->dseg1_address[1] = cpu_to_le32(MSD(nvme->u.nvme.rsp_dma));
3399
3400 return rval;
3401 }
3402
3403 static void
3404 qla25xx_ctrlvp_iocb(srb_t *sp, struct vp_ctrl_entry_24xx *vce)
3405 {
3406 int map, pos;
3407
3408 vce->entry_type = VP_CTRL_IOCB_TYPE;
3409 vce->handle = sp->handle;
3410 vce->entry_count = 1;
3411 vce->command = cpu_to_le16(sp->u.iocb_cmd.u.ctrlvp.cmd);
3412 vce->vp_count = cpu_to_le16(1);
3413
3414 /*
3415 * index map in firmware starts with 1; decrement index
3416 * this is ok as we never use index 0
3417 */
3418 map = (sp->u.iocb_cmd.u.ctrlvp.vp_index - 1) / 8;
3419 pos = (sp->u.iocb_cmd.u.ctrlvp.vp_index - 1) & 7;
3420 vce->vp_idx_map[map] |= 1 << pos;
3421 }
3422
3423 static void
3424 qla24xx_prlo_iocb(srb_t *sp, struct logio_entry_24xx *logio)
3425 {
3426 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
3427 logio->control_flags =
3428 cpu_to_le16(LCF_COMMAND_PRLO|LCF_IMPL_PRLO);
3429
3430 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
3431 logio->port_id[0] = sp->fcport->d_id.b.al_pa;
3432 logio->port_id[1] = sp->fcport->d_id.b.area;
3433 logio->port_id[2] = sp->fcport->d_id.b.domain;
3434 logio->vp_index = sp->fcport->vha->vp_idx;
3435 }
3436
3437 int
3438 qla2x00_start_sp(srb_t *sp)
3439 {
3440 int rval;
3441 scsi_qla_host_t *vha = sp->vha;
3442 struct qla_hw_data *ha = vha->hw;
3443 struct qla_qpair *qp = sp->qpair;
3444 void *pkt;
3445 unsigned long flags;
3446
3447 rval = QLA_FUNCTION_FAILED;
3448 spin_lock_irqsave(qp->qp_lock_ptr, flags);
3449 pkt = __qla2x00_alloc_iocbs(sp->qpair, sp);
3450 if (!pkt) {
3451 ql_log(ql_log_warn, vha, 0x700c,
3452 "qla2x00_alloc_iocbs failed.\n");
3453 goto done;
3454 }
3455
3456 rval = QLA_SUCCESS;
3457 switch (sp->type) {
3458 case SRB_LOGIN_CMD:
3459 IS_FWI2_CAPABLE(ha) ?
3460 qla24xx_login_iocb(sp, pkt) :
3461 qla2x00_login_iocb(sp, pkt);
3462 break;
3463 case SRB_PRLI_CMD:
3464 qla24xx_prli_iocb(sp, pkt);
3465 break;
3466 case SRB_LOGOUT_CMD:
3467 IS_FWI2_CAPABLE(ha) ?
3468 qla24xx_logout_iocb(sp, pkt) :
3469 qla2x00_logout_iocb(sp, pkt);
3470 break;
3471 case SRB_ELS_CMD_RPT:
3472 case SRB_ELS_CMD_HST:
3473 qla24xx_els_iocb(sp, pkt);
3474 break;
3475 case SRB_CT_CMD:
3476 IS_FWI2_CAPABLE(ha) ?
3477 qla24xx_ct_iocb(sp, pkt) :
3478 qla2x00_ct_iocb(sp, pkt);
3479 break;
3480 case SRB_ADISC_CMD:
3481 IS_FWI2_CAPABLE(ha) ?
3482 qla24xx_adisc_iocb(sp, pkt) :
3483 qla2x00_adisc_iocb(sp, pkt);
3484 break;
3485 case SRB_TM_CMD:
3486 IS_QLAFX00(ha) ?
3487 qlafx00_tm_iocb(sp, pkt) :
3488 qla24xx_tm_iocb(sp, pkt);
3489 break;
3490 case SRB_FXIOCB_DCMD:
3491 case SRB_FXIOCB_BCMD:
3492 qlafx00_fxdisc_iocb(sp, pkt);
3493 break;
3494 case SRB_NVME_LS:
3495 qla_nvme_ls(sp, pkt);
3496 break;
3497 case SRB_ABT_CMD:
3498 IS_QLAFX00(ha) ?
3499 qlafx00_abort_iocb(sp, pkt) :
3500 qla24xx_abort_iocb(sp, pkt);
3501 break;
3502 case SRB_ELS_DCMD:
3503 qla24xx_els_logo_iocb(sp, pkt);
3504 break;
3505 case SRB_CT_PTHRU_CMD:
3506 qla2x00_ctpthru_cmd_iocb(sp, pkt);
3507 break;
3508 case SRB_MB_IOCB:
3509 qla2x00_mb_iocb(sp, pkt);
3510 break;
3511 case SRB_NACK_PLOGI:
3512 case SRB_NACK_PRLI:
3513 case SRB_NACK_LOGO:
3514 qla2x00_send_notify_ack_iocb(sp, pkt);
3515 break;
3516 case SRB_CTRL_VP:
3517 qla25xx_ctrlvp_iocb(sp, pkt);
3518 break;
3519 case SRB_PRLO_CMD:
3520 qla24xx_prlo_iocb(sp, pkt);
3521 break;
3522 default:
3523 break;
3524 }
3525
3526 wmb();
3527 qla2x00_start_iocbs(vha, qp->req);
3528 done:
3529 spin_unlock_irqrestore(qp->qp_lock_ptr, flags);
3530 return rval;
3531 }
3532
3533 static void
3534 qla25xx_build_bidir_iocb(srb_t *sp, struct scsi_qla_host *vha,
3535 struct cmd_bidir *cmd_pkt, uint32_t tot_dsds)
3536 {
3537 uint16_t avail_dsds;
3538 uint32_t *cur_dsd;
3539 uint32_t req_data_len = 0;
3540 uint32_t rsp_data_len = 0;
3541 struct scatterlist *sg;
3542 int index;
3543 int entry_count = 1;
3544 struct bsg_job *bsg_job = sp->u.bsg_job;
3545
3546 /*Update entry type to indicate bidir command */
3547 *((uint32_t *)(&cmd_pkt->entry_type)) =
3548 cpu_to_le32(COMMAND_BIDIRECTIONAL);
3549
3550 /* Set the transfer direction, in this set both flags
3551 * Also set the BD_WRAP_BACK flag, firmware will take care
3552 * assigning DID=SID for outgoing pkts.
3553 */
3554 cmd_pkt->wr_dseg_count = cpu_to_le16(bsg_job->request_payload.sg_cnt);
3555 cmd_pkt->rd_dseg_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt);
3556 cmd_pkt->control_flags = cpu_to_le16(BD_WRITE_DATA | BD_READ_DATA |
3557 BD_WRAP_BACK);
3558
3559 req_data_len = rsp_data_len = bsg_job->request_payload.payload_len;
3560 cmd_pkt->wr_byte_count = cpu_to_le32(req_data_len);
3561 cmd_pkt->rd_byte_count = cpu_to_le32(rsp_data_len);
3562 cmd_pkt->timeout = cpu_to_le16(qla2x00_get_async_timeout(vha) + 2);
3563
3564 vha->bidi_stats.transfer_bytes += req_data_len;
3565 vha->bidi_stats.io_count++;
3566
3567 vha->qla_stats.output_bytes += req_data_len;
3568 vha->qla_stats.output_requests++;
3569
3570 /* Only one dsd is available for bidirectional IOCB, remaining dsds
3571 * are bundled in continuation iocb
3572 */
3573 avail_dsds = 1;
3574 cur_dsd = (uint32_t *)&cmd_pkt->fcp_data_dseg_address;
3575
3576 index = 0;
3577
3578 for_each_sg(bsg_job->request_payload.sg_list, sg,
3579 bsg_job->request_payload.sg_cnt, index) {
3580 dma_addr_t sle_dma;
3581 cont_a64_entry_t *cont_pkt;
3582
3583 /* Allocate additional continuation packets */
3584 if (avail_dsds == 0) {
3585 /* Continuation type 1 IOCB can accomodate
3586 * 5 DSDS
3587 */
3588 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req);
3589 cur_dsd = (uint32_t *) cont_pkt->dseg_0_address;
3590 avail_dsds = 5;
3591 entry_count++;
3592 }
3593 sle_dma = sg_dma_address(sg);
3594 *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
3595 *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
3596 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
3597 avail_dsds--;
3598 }
3599 /* For read request DSD will always goes to continuation IOCB
3600 * and follow the write DSD. If there is room on the current IOCB
3601 * then it is added to that IOCB else new continuation IOCB is
3602 * allocated.
3603 */
3604 for_each_sg(bsg_job->reply_payload.sg_list, sg,
3605 bsg_job->reply_payload.sg_cnt, index) {
3606 dma_addr_t sle_dma;
3607 cont_a64_entry_t *cont_pkt;
3608
3609 /* Allocate additional continuation packets */
3610 if (avail_dsds == 0) {
3611 /* Continuation type 1 IOCB can accomodate
3612 * 5 DSDS
3613 */
3614 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req);
3615 cur_dsd = (uint32_t *) cont_pkt->dseg_0_address;
3616 avail_dsds = 5;
3617 entry_count++;
3618 }
3619 sle_dma = sg_dma_address(sg);
3620 *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
3621 *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
3622 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
3623 avail_dsds--;
3624 }
3625 /* This value should be same as number of IOCB required for this cmd */
3626 cmd_pkt->entry_count = entry_count;
3627 }
3628
3629 int
3630 qla2x00_start_bidir(srb_t *sp, struct scsi_qla_host *vha, uint32_t tot_dsds)
3631 {
3632
3633 struct qla_hw_data *ha = vha->hw;
3634 unsigned long flags;
3635 uint32_t handle;
3636 uint32_t index;
3637 uint16_t req_cnt;
3638 uint16_t cnt;
3639 uint32_t *clr_ptr;
3640 struct cmd_bidir *cmd_pkt = NULL;
3641 struct rsp_que *rsp;
3642 struct req_que *req;
3643 int rval = EXT_STATUS_OK;
3644
3645 rval = QLA_SUCCESS;
3646
3647 rsp = ha->rsp_q_map[0];
3648 req = vha->req;
3649
3650 /* Send marker if required */
3651 if (vha->marker_needed != 0) {
3652 if (qla2x00_marker(vha, req,
3653 rsp, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS)
3654 return EXT_STATUS_MAILBOX;
3655 vha->marker_needed = 0;
3656 }
3657
3658 /* Acquire ring specific lock */
3659 spin_lock_irqsave(&ha->hardware_lock, flags);
3660
3661 /* Check for room in outstanding command list. */
3662 handle = req->current_outstanding_cmd;
3663 for (index = 1; index < req->num_outstanding_cmds; index++) {
3664 handle++;
3665 if (handle == req->num_outstanding_cmds)
3666 handle = 1;
3667 if (!req->outstanding_cmds[handle])
3668 break;
3669 }
3670
3671 if (index == req->num_outstanding_cmds) {
3672 rval = EXT_STATUS_BUSY;
3673 goto queuing_error;
3674 }
3675
3676 /* Calculate number of IOCB required */
3677 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
3678
3679 /* Check for room on request queue. */
3680 if (req->cnt < req_cnt + 2) {
3681 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
3682 RD_REG_DWORD_RELAXED(req->req_q_out);
3683 if (req->ring_index < cnt)
3684 req->cnt = cnt - req->ring_index;
3685 else
3686 req->cnt = req->length -
3687 (req->ring_index - cnt);
3688 }
3689 if (req->cnt < req_cnt + 2) {
3690 rval = EXT_STATUS_BUSY;
3691 goto queuing_error;
3692 }
3693
3694 cmd_pkt = (struct cmd_bidir *)req->ring_ptr;
3695 cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
3696
3697 /* Zero out remaining portion of packet. */
3698 /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/
3699 clr_ptr = (uint32_t *)cmd_pkt + 2;
3700 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
3701
3702 /* Set NPORT-ID (of vha)*/
3703 cmd_pkt->nport_handle = cpu_to_le16(vha->self_login_loop_id);
3704 cmd_pkt->port_id[0] = vha->d_id.b.al_pa;
3705 cmd_pkt->port_id[1] = vha->d_id.b.area;
3706 cmd_pkt->port_id[2] = vha->d_id.b.domain;
3707
3708 qla25xx_build_bidir_iocb(sp, vha, cmd_pkt, tot_dsds);
3709 cmd_pkt->entry_status = (uint8_t) rsp->id;
3710 /* Build command packet. */
3711 req->current_outstanding_cmd = handle;
3712 req->outstanding_cmds[handle] = sp;
3713 sp->handle = handle;
3714 req->cnt -= req_cnt;
3715
3716 /* Send the command to the firmware */
3717 wmb();
3718 qla2x00_start_iocbs(vha, req);
3719 queuing_error:
3720 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3721 return rval;
3722 }
Linux with added FPC-III support