]>
git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - drivers/scsi/qla2xxx/qla_iocb.c
2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2008 QLogic Corporation
5 * See LICENSE.qla2xxx for copyright and licensing details.
9 #include <linux/blkdev.h>
10 #include <linux/delay.h>
12 #include <scsi/scsi_tcq.h>
14 static request_t
*qla2x00_req_pkt(struct scsi_qla_host
*, struct req_que
*,
16 static void qla2x00_isp_cmd(struct scsi_qla_host
*, struct req_que
*);
18 static void qla25xx_set_que(srb_t
*, struct rsp_que
**);
20 * qla2x00_get_cmd_direction() - Determine control_flag data direction.
23 * Returns the proper CF_* direction based on CDB.
25 static inline uint16_t
26 qla2x00_get_cmd_direction(srb_t
*sp
)
32 /* Set transfer direction */
33 if (sp
->cmd
->sc_data_direction
== DMA_TO_DEVICE
) {
35 sp
->fcport
->vha
->hw
->qla_stats
.output_bytes
+=
36 scsi_bufflen(sp
->cmd
);
37 } else if (sp
->cmd
->sc_data_direction
== DMA_FROM_DEVICE
) {
39 sp
->fcport
->vha
->hw
->qla_stats
.input_bytes
+=
40 scsi_bufflen(sp
->cmd
);
46 * qla2x00_calc_iocbs_32() - Determine number of Command Type 2 and
47 * Continuation Type 0 IOCBs to allocate.
49 * @dsds: number of data segment decriptors needed
51 * Returns the number of IOCB entries needed to store @dsds.
54 qla2x00_calc_iocbs_32(uint16_t dsds
)
60 iocbs
+= (dsds
- 3) / 7;
68 * qla2x00_calc_iocbs_64() - Determine number of Command Type 3 and
69 * Continuation Type 1 IOCBs to allocate.
71 * @dsds: number of data segment decriptors needed
73 * Returns the number of IOCB entries needed to store @dsds.
76 qla2x00_calc_iocbs_64(uint16_t dsds
)
82 iocbs
+= (dsds
- 2) / 5;
90 * qla2x00_prep_cont_type0_iocb() - Initialize a Continuation Type 0 IOCB.
93 * Returns a pointer to the Continuation Type 0 IOCB packet.
95 static inline cont_entry_t
*
96 qla2x00_prep_cont_type0_iocb(struct scsi_qla_host
*vha
)
98 cont_entry_t
*cont_pkt
;
99 struct req_que
*req
= vha
->req
;
100 /* Adjust ring index. */
102 if (req
->ring_index
== req
->length
) {
104 req
->ring_ptr
= req
->ring
;
109 cont_pkt
= (cont_entry_t
*)req
->ring_ptr
;
111 /* Load packet defaults. */
112 *((uint32_t *)(&cont_pkt
->entry_type
)) =
113 __constant_cpu_to_le32(CONTINUE_TYPE
);
119 * qla2x00_prep_cont_type1_iocb() - Initialize a Continuation Type 1 IOCB.
122 * Returns a pointer to the continuation type 1 IOCB packet.
124 static inline cont_a64_entry_t
*
125 qla2x00_prep_cont_type1_iocb(scsi_qla_host_t
*vha
)
127 cont_a64_entry_t
*cont_pkt
;
129 struct req_que
*req
= vha
->req
;
130 /* Adjust ring index. */
132 if (req
->ring_index
== req
->length
) {
134 req
->ring_ptr
= req
->ring
;
139 cont_pkt
= (cont_a64_entry_t
*)req
->ring_ptr
;
141 /* Load packet defaults. */
142 *((uint32_t *)(&cont_pkt
->entry_type
)) =
143 __constant_cpu_to_le32(CONTINUE_A64_TYPE
);
149 qla24xx_configure_prot_mode(srb_t
*sp
, uint16_t *fw_prot_opts
)
151 uint8_t guard
= scsi_host_get_guard(sp
->cmd
->device
->host
);
153 /* We only support T10 DIF right now */
154 if (guard
!= SHOST_DIX_GUARD_CRC
) {
155 DEBUG2(printk(KERN_ERR
"Unsupported guard: %d\n", guard
));
159 /* We always use DIFF Bundling for best performance */
162 /* Translate SCSI opcode to a protection opcode */
163 switch (scsi_get_prot_op(sp
->cmd
)) {
164 case SCSI_PROT_READ_STRIP
:
165 *fw_prot_opts
|= PO_MODE_DIF_REMOVE
;
167 case SCSI_PROT_WRITE_INSERT
:
168 *fw_prot_opts
|= PO_MODE_DIF_INSERT
;
170 case SCSI_PROT_READ_INSERT
:
171 *fw_prot_opts
|= PO_MODE_DIF_INSERT
;
173 case SCSI_PROT_WRITE_STRIP
:
174 *fw_prot_opts
|= PO_MODE_DIF_REMOVE
;
176 case SCSI_PROT_READ_PASS
:
177 *fw_prot_opts
|= PO_MODE_DIF_PASS
;
179 case SCSI_PROT_WRITE_PASS
:
180 *fw_prot_opts
|= PO_MODE_DIF_PASS
;
182 default: /* Normal Request */
183 *fw_prot_opts
|= PO_MODE_DIF_PASS
;
187 return scsi_prot_sg_count(sp
->cmd
);
191 * qla2x00_build_scsi_iocbs_32() - Build IOCB command utilizing 32bit
192 * capable IOCB types.
194 * @sp: SRB command to process
195 * @cmd_pkt: Command type 2 IOCB
196 * @tot_dsds: Total number of segments to transfer
198 void qla2x00_build_scsi_iocbs_32(srb_t
*sp
, cmd_entry_t
*cmd_pkt
,
203 scsi_qla_host_t
*vha
;
204 struct scsi_cmnd
*cmd
;
205 struct scatterlist
*sg
;
210 /* Update entry type to indicate Command Type 2 IOCB */
211 *((uint32_t *)(&cmd_pkt
->entry_type
)) =
212 __constant_cpu_to_le32(COMMAND_TYPE
);
214 /* No data transfer */
215 if (!scsi_bufflen(cmd
) || cmd
->sc_data_direction
== DMA_NONE
) {
216 cmd_pkt
->byte_count
= __constant_cpu_to_le32(0);
220 vha
= sp
->fcport
->vha
;
221 cmd_pkt
->control_flags
|= cpu_to_le16(qla2x00_get_cmd_direction(sp
));
223 /* Three DSDs are available in the Command Type 2 IOCB */
225 cur_dsd
= (uint32_t *)&cmd_pkt
->dseg_0_address
;
227 /* Load data segments */
228 scsi_for_each_sg(cmd
, sg
, tot_dsds
, i
) {
229 cont_entry_t
*cont_pkt
;
231 /* Allocate additional continuation packets? */
232 if (avail_dsds
== 0) {
234 * Seven DSDs are available in the Continuation
237 cont_pkt
= qla2x00_prep_cont_type0_iocb(vha
);
238 cur_dsd
= (uint32_t *)&cont_pkt
->dseg_0_address
;
242 *cur_dsd
++ = cpu_to_le32(sg_dma_address(sg
));
243 *cur_dsd
++ = cpu_to_le32(sg_dma_len(sg
));
249 * qla2x00_build_scsi_iocbs_64() - Build IOCB command utilizing 64bit
250 * capable IOCB types.
252 * @sp: SRB command to process
253 * @cmd_pkt: Command type 3 IOCB
254 * @tot_dsds: Total number of segments to transfer
256 void qla2x00_build_scsi_iocbs_64(srb_t
*sp
, cmd_entry_t
*cmd_pkt
,
261 scsi_qla_host_t
*vha
;
262 struct scsi_cmnd
*cmd
;
263 struct scatterlist
*sg
;
268 /* Update entry type to indicate Command Type 3 IOCB */
269 *((uint32_t *)(&cmd_pkt
->entry_type
)) =
270 __constant_cpu_to_le32(COMMAND_A64_TYPE
);
272 /* No data transfer */
273 if (!scsi_bufflen(cmd
) || cmd
->sc_data_direction
== DMA_NONE
) {
274 cmd_pkt
->byte_count
= __constant_cpu_to_le32(0);
278 vha
= sp
->fcport
->vha
;
279 cmd_pkt
->control_flags
|= cpu_to_le16(qla2x00_get_cmd_direction(sp
));
281 /* Two DSDs are available in the Command Type 3 IOCB */
283 cur_dsd
= (uint32_t *)&cmd_pkt
->dseg_0_address
;
285 /* Load data segments */
286 scsi_for_each_sg(cmd
, sg
, tot_dsds
, i
) {
288 cont_a64_entry_t
*cont_pkt
;
290 /* Allocate additional continuation packets? */
291 if (avail_dsds
== 0) {
293 * Five DSDs are available in the Continuation
296 cont_pkt
= qla2x00_prep_cont_type1_iocb(vha
);
297 cur_dsd
= (uint32_t *)cont_pkt
->dseg_0_address
;
301 sle_dma
= sg_dma_address(sg
);
302 *cur_dsd
++ = cpu_to_le32(LSD(sle_dma
));
303 *cur_dsd
++ = cpu_to_le32(MSD(sle_dma
));
304 *cur_dsd
++ = cpu_to_le32(sg_dma_len(sg
));
310 * qla2x00_start_scsi() - Send a SCSI command to the ISP
311 * @sp: command to send to the ISP
313 * Returns non-zero if a failure occurred, else zero.
316 qla2x00_start_scsi(srb_t
*sp
)
320 scsi_qla_host_t
*vha
;
321 struct scsi_cmnd
*cmd
;
325 cmd_entry_t
*cmd_pkt
;
329 struct device_reg_2xxx __iomem
*reg
;
330 struct qla_hw_data
*ha
;
334 /* Setup device pointers. */
336 vha
= sp
->fcport
->vha
;
338 reg
= &ha
->iobase
->isp
;
340 req
= ha
->req_q_map
[0];
341 rsp
= ha
->rsp_q_map
[0];
342 /* So we know we haven't pci_map'ed anything yet */
345 /* Send marker if required */
346 if (vha
->marker_needed
!= 0) {
347 if (qla2x00_marker(vha
, req
, rsp
, 0, 0, MK_SYNC_ALL
)
349 return (QLA_FUNCTION_FAILED
);
350 vha
->marker_needed
= 0;
353 /* Acquire ring specific lock */
354 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
356 /* Check for room in outstanding command list. */
357 handle
= req
->current_outstanding_cmd
;
358 for (index
= 1; index
< MAX_OUTSTANDING_COMMANDS
; index
++) {
360 if (handle
== MAX_OUTSTANDING_COMMANDS
)
362 if (!req
->outstanding_cmds
[handle
])
365 if (index
== MAX_OUTSTANDING_COMMANDS
)
368 /* Map the sg table so we have an accurate count of sg entries needed */
369 if (scsi_sg_count(cmd
)) {
370 nseg
= dma_map_sg(&ha
->pdev
->dev
, scsi_sglist(cmd
),
371 scsi_sg_count(cmd
), cmd
->sc_data_direction
);
379 /* Calculate the number of request entries needed. */
380 req_cnt
= ha
->isp_ops
->calc_req_entries(tot_dsds
);
381 if (req
->cnt
< (req_cnt
+ 2)) {
382 cnt
= RD_REG_WORD_RELAXED(ISP_REQ_Q_OUT(ha
, reg
));
383 if (req
->ring_index
< cnt
)
384 req
->cnt
= cnt
- req
->ring_index
;
386 req
->cnt
= req
->length
-
387 (req
->ring_index
- cnt
);
389 if (req
->cnt
< (req_cnt
+ 2))
392 /* Build command packet */
393 req
->current_outstanding_cmd
= handle
;
394 req
->outstanding_cmds
[handle
] = sp
;
396 sp
->cmd
->host_scribble
= (unsigned char *)(unsigned long)handle
;
399 cmd_pkt
= (cmd_entry_t
*)req
->ring_ptr
;
400 cmd_pkt
->handle
= handle
;
401 /* Zero out remaining portion of packet. */
402 clr_ptr
= (uint32_t *)cmd_pkt
+ 2;
403 memset(clr_ptr
, 0, REQUEST_ENTRY_SIZE
- 8);
404 cmd_pkt
->dseg_count
= cpu_to_le16(tot_dsds
);
406 /* Set target ID and LUN number*/
407 SET_TARGET_ID(ha
, cmd_pkt
->target
, sp
->fcport
->loop_id
);
408 cmd_pkt
->lun
= cpu_to_le16(sp
->cmd
->device
->lun
);
410 /* Update tagged queuing modifier */
411 cmd_pkt
->control_flags
= __constant_cpu_to_le16(CF_SIMPLE_TAG
);
413 /* Load SCSI command packet. */
414 memcpy(cmd_pkt
->scsi_cdb
, cmd
->cmnd
, cmd
->cmd_len
);
415 cmd_pkt
->byte_count
= cpu_to_le32((uint32_t)scsi_bufflen(cmd
));
417 /* Build IOCB segments */
418 ha
->isp_ops
->build_iocbs(sp
, cmd_pkt
, tot_dsds
);
420 /* Set total data segment count. */
421 cmd_pkt
->entry_count
= (uint8_t)req_cnt
;
424 /* Adjust ring index. */
426 if (req
->ring_index
== req
->length
) {
428 req
->ring_ptr
= req
->ring
;
432 sp
->flags
|= SRB_DMA_VALID
;
434 /* Set chip new ring index. */
435 WRT_REG_WORD(ISP_REQ_Q_IN(ha
, reg
), req
->ring_index
);
436 RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha
, reg
)); /* PCI Posting. */
438 /* Manage unprocessed RIO/ZIO commands in response queue. */
439 if (vha
->flags
.process_response_queue
&&
440 rsp
->ring_ptr
->signature
!= RESPONSE_PROCESSED
)
441 qla2x00_process_response_queue(rsp
);
443 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
444 return (QLA_SUCCESS
);
450 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
452 return (QLA_FUNCTION_FAILED
);
456 * qla2x00_marker() - Send a marker IOCB to the firmware.
460 * @type: marker modifier
462 * Can be called from both normal and interrupt context.
464 * Returns non-zero if a failure occurred, else zero.
467 __qla2x00_marker(struct scsi_qla_host
*vha
, struct req_que
*req
,
468 struct rsp_que
*rsp
, uint16_t loop_id
,
469 uint16_t lun
, uint8_t type
)
472 struct mrk_entry_24xx
*mrk24
;
473 struct qla_hw_data
*ha
= vha
->hw
;
474 scsi_qla_host_t
*base_vha
= pci_get_drvdata(ha
->pdev
);
477 mrk
= (mrk_entry_t
*)qla2x00_req_pkt(vha
, req
, rsp
);
479 DEBUG2_3(printk("%s(%ld): failed to allocate Marker IOCB.\n",
480 __func__
, base_vha
->host_no
));
482 return (QLA_FUNCTION_FAILED
);
485 mrk
->entry_type
= MARKER_TYPE
;
486 mrk
->modifier
= type
;
487 if (type
!= MK_SYNC_ALL
) {
488 if (IS_FWI2_CAPABLE(ha
)) {
489 mrk24
= (struct mrk_entry_24xx
*) mrk
;
490 mrk24
->nport_handle
= cpu_to_le16(loop_id
);
491 mrk24
->lun
[1] = LSB(lun
);
492 mrk24
->lun
[2] = MSB(lun
);
493 host_to_fcp_swap(mrk24
->lun
, sizeof(mrk24
->lun
));
494 mrk24
->vp_index
= vha
->vp_idx
;
495 mrk24
->handle
= MAKE_HANDLE(req
->id
, mrk24
->handle
);
497 SET_TARGET_ID(ha
, mrk
->target
, loop_id
);
498 mrk
->lun
= cpu_to_le16(lun
);
503 qla2x00_isp_cmd(vha
, req
);
505 return (QLA_SUCCESS
);
509 qla2x00_marker(struct scsi_qla_host
*vha
, struct req_que
*req
,
510 struct rsp_que
*rsp
, uint16_t loop_id
, uint16_t lun
,
514 unsigned long flags
= 0;
516 spin_lock_irqsave(&vha
->hw
->hardware_lock
, flags
);
517 ret
= __qla2x00_marker(vha
, req
, rsp
, loop_id
, lun
, type
);
518 spin_unlock_irqrestore(&vha
->hw
->hardware_lock
, flags
);
524 * qla2x00_req_pkt() - Retrieve a request packet from the request ring.
527 * Note: The caller must hold the hardware lock before calling this routine.
529 * Returns NULL if function failed, else, a pointer to the request packet.
532 qla2x00_req_pkt(struct scsi_qla_host
*vha
, struct req_que
*req
,
535 struct qla_hw_data
*ha
= vha
->hw
;
536 device_reg_t __iomem
*reg
= ISP_QUE_REG(ha
, req
->id
);
537 request_t
*pkt
= NULL
;
541 uint16_t req_cnt
= 1;
543 /* Wait 1 second for slot. */
544 for (timer
= HZ
; timer
; timer
--) {
545 if ((req_cnt
+ 2) >= req
->cnt
) {
546 /* Calculate number of free request entries. */
549 RD_REG_DWORD(®
->isp25mq
.req_q_out
);
552 cnt
= (uint16_t)RD_REG_DWORD(
553 ®
->isp82
.req_q_out
);
554 else if (IS_FWI2_CAPABLE(ha
))
555 cnt
= (uint16_t)RD_REG_DWORD(
556 ®
->isp24
.req_q_out
);
558 cnt
= qla2x00_debounce_register(
559 ISP_REQ_Q_OUT(ha
, ®
->isp
));
561 if (req
->ring_index
< cnt
)
562 req
->cnt
= cnt
- req
->ring_index
;
564 req
->cnt
= req
->length
-
565 (req
->ring_index
- cnt
);
567 /* If room for request in request ring. */
568 if ((req_cnt
+ 2) < req
->cnt
) {
572 /* Zero out packet. */
573 dword_ptr
= (uint32_t *)pkt
;
574 for (cnt
= 0; cnt
< REQUEST_ENTRY_SIZE
/ 4; cnt
++)
577 /* Set entry count. */
578 pkt
->entry_count
= 1;
583 /* Release ring specific lock */
584 spin_unlock_irq(&ha
->hardware_lock
);
586 udelay(2); /* 2 us */
588 /* Check for pending interrupts. */
589 /* During init we issue marker directly */
590 if (!vha
->marker_needed
&& !vha
->flags
.init_done
)
592 spin_lock_irq(&ha
->hardware_lock
);
595 DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__
));
602 * qla2x00_isp_cmd() - Modify the request ring pointer.
605 * Note: The caller must hold the hardware lock before calling this routine.
608 qla2x00_isp_cmd(struct scsi_qla_host
*vha
, struct req_que
*req
)
610 struct qla_hw_data
*ha
= vha
->hw
;
611 device_reg_t __iomem
*reg
= ISP_QUE_REG(ha
, req
->id
);
612 struct device_reg_2xxx __iomem
*ioreg
= &ha
->iobase
->isp
;
614 DEBUG5(printk("%s(): IOCB data:\n", __func__
));
615 DEBUG5(qla2x00_dump_buffer(
616 (uint8_t *)req
->ring_ptr
, REQUEST_ENTRY_SIZE
));
618 /* Adjust ring index. */
620 if (req
->ring_index
== req
->length
) {
622 req
->ring_ptr
= req
->ring
;
626 /* Set chip new ring index. */
627 if (IS_QLA82XX(ha
)) {
628 uint32_t dbval
= 0x04 | (ha
->portnum
<< 5);
630 /* write, read and verify logic */
631 dbval
= dbval
| (req
->id
<< 8) | (req
->ring_index
<< 16);
633 qla82xx_wr_32(ha
, ha
->nxdb_wr_ptr
, dbval
);
636 (unsigned long __iomem
*)ha
->nxdb_wr_ptr
,
639 while (RD_REG_DWORD(ha
->nxdb_rd_ptr
) != dbval
) {
640 WRT_REG_DWORD((unsigned long __iomem
*)
641 ha
->nxdb_wr_ptr
, dbval
);
645 } else if (ha
->mqenable
) {
646 /* Set chip new ring index. */
647 WRT_REG_DWORD(®
->isp25mq
.req_q_in
, req
->ring_index
);
648 RD_REG_DWORD(&ioreg
->hccr
);
650 if (IS_FWI2_CAPABLE(ha
)) {
651 WRT_REG_DWORD(®
->isp24
.req_q_in
, req
->ring_index
);
652 RD_REG_DWORD_RELAXED(®
->isp24
.req_q_in
);
654 WRT_REG_WORD(ISP_REQ_Q_IN(ha
, ®
->isp
),
656 RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha
, ®
->isp
));
663 * qla24xx_calc_iocbs() - Determine number of Command Type 3 and
664 * Continuation Type 1 IOCBs to allocate.
666 * @dsds: number of data segment decriptors needed
668 * Returns the number of IOCB entries needed to store @dsds.
671 qla24xx_calc_iocbs(uint16_t dsds
)
677 iocbs
+= (dsds
- 1) / 5;
681 DEBUG3(printk(KERN_DEBUG
"%s(): Required PKT(s) = %d\n",
687 * qla24xx_build_scsi_iocbs() - Build IOCB command utilizing Command Type 7
690 * @sp: SRB command to process
691 * @cmd_pkt: Command type 3 IOCB
692 * @tot_dsds: Total number of segments to transfer
695 qla24xx_build_scsi_iocbs(srb_t
*sp
, struct cmd_type_7
*cmd_pkt
,
700 scsi_qla_host_t
*vha
;
701 struct scsi_cmnd
*cmd
;
702 struct scatterlist
*sg
;
708 /* Update entry type to indicate Command Type 3 IOCB */
709 *((uint32_t *)(&cmd_pkt
->entry_type
)) =
710 __constant_cpu_to_le32(COMMAND_TYPE_7
);
712 /* No data transfer */
713 if (!scsi_bufflen(cmd
) || cmd
->sc_data_direction
== DMA_NONE
) {
714 cmd_pkt
->byte_count
= __constant_cpu_to_le32(0);
718 vha
= sp
->fcport
->vha
;
721 /* Set transfer direction */
722 if (cmd
->sc_data_direction
== DMA_TO_DEVICE
) {
723 cmd_pkt
->task_mgmt_flags
=
724 __constant_cpu_to_le16(TMF_WRITE_DATA
);
725 sp
->fcport
->vha
->hw
->qla_stats
.output_bytes
+=
726 scsi_bufflen(sp
->cmd
);
727 } else if (cmd
->sc_data_direction
== DMA_FROM_DEVICE
) {
728 cmd_pkt
->task_mgmt_flags
=
729 __constant_cpu_to_le16(TMF_READ_DATA
);
730 sp
->fcport
->vha
->hw
->qla_stats
.input_bytes
+=
731 scsi_bufflen(sp
->cmd
);
734 /* One DSD is available in the Command Type 3 IOCB */
736 cur_dsd
= (uint32_t *)&cmd_pkt
->dseg_0_address
;
738 /* Load data segments */
740 scsi_for_each_sg(cmd
, sg
, tot_dsds
, i
) {
742 cont_a64_entry_t
*cont_pkt
;
744 /* Allocate additional continuation packets? */
745 if (avail_dsds
== 0) {
747 * Five DSDs are available in the Continuation
750 cont_pkt
= qla2x00_prep_cont_type1_iocb(vha
);
751 cur_dsd
= (uint32_t *)cont_pkt
->dseg_0_address
;
755 sle_dma
= sg_dma_address(sg
);
756 *cur_dsd
++ = cpu_to_le32(LSD(sle_dma
));
757 *cur_dsd
++ = cpu_to_le32(MSD(sle_dma
));
758 *cur_dsd
++ = cpu_to_le32(sg_dma_len(sg
));
763 struct fw_dif_context
{
766 uint8_t ref_tag_mask
[4]; /* Validation/Replacement Mask*/
767 uint8_t app_tag_mask
[2]; /* Validation/Replacement Mask*/
771 * qla24xx_set_t10dif_tags_from_cmd - Extract Ref and App tags from SCSI command
775 qla24xx_set_t10dif_tags(struct scsi_cmnd
*cmd
, struct fw_dif_context
*pkt
,
776 unsigned int protcnt
)
778 struct sd_dif_tuple
*spt
;
779 unsigned char op
= scsi_get_prot_op(cmd
);
781 switch (scsi_get_prot_type(cmd
)) {
782 /* For TYPE 0 protection: no checking */
783 case SCSI_PROT_DIF_TYPE0
:
784 pkt
->ref_tag_mask
[0] = 0x00;
785 pkt
->ref_tag_mask
[1] = 0x00;
786 pkt
->ref_tag_mask
[2] = 0x00;
787 pkt
->ref_tag_mask
[3] = 0x00;
791 * For TYPE 2 protection: 16 bit GUARD + 32 bit REF tag has to
792 * match LBA in CDB + N
794 case SCSI_PROT_DIF_TYPE2
:
797 /* For Type 3 protection: 16 bit GUARD only */
798 case SCSI_PROT_DIF_TYPE3
:
799 pkt
->ref_tag_mask
[0] = pkt
->ref_tag_mask
[1] =
800 pkt
->ref_tag_mask
[2] = pkt
->ref_tag_mask
[3] =
805 * For TYpe 1 protection: 16 bit GUARD tag, 32 bit REF tag, and
808 case SCSI_PROT_DIF_TYPE1
:
809 if (!ql2xenablehba_err_chk
)
812 if (protcnt
&& (op
== SCSI_PROT_WRITE_STRIP
||
813 op
== SCSI_PROT_WRITE_PASS
)) {
814 spt
= page_address(sg_page(scsi_prot_sglist(cmd
))) +
815 scsi_prot_sglist(cmd
)[0].offset
;
816 DEBUG18(printk(KERN_DEBUG
817 "%s(): LBA from user %p, lba = 0x%x\n",
818 __func__
, spt
, (int)spt
->ref_tag
));
819 pkt
->ref_tag
= swab32(spt
->ref_tag
);
820 pkt
->app_tag_mask
[0] = 0x0;
821 pkt
->app_tag_mask
[1] = 0x0;
823 pkt
->ref_tag
= cpu_to_le32((uint32_t)
824 (0xffffffff & scsi_get_lba(cmd
)));
825 pkt
->app_tag
= __constant_cpu_to_le16(0);
826 pkt
->app_tag_mask
[0] = 0x0;
827 pkt
->app_tag_mask
[1] = 0x0;
829 /* enable ALL bytes of the ref tag */
830 pkt
->ref_tag_mask
[0] = 0xff;
831 pkt
->ref_tag_mask
[1] = 0xff;
832 pkt
->ref_tag_mask
[2] = 0xff;
833 pkt
->ref_tag_mask
[3] = 0xff;
837 DEBUG18(printk(KERN_DEBUG
838 "%s(): Setting protection Tags: (BIG) ref tag = 0x%x,"
839 " app tag = 0x%x, prot SG count %d , cmd lba 0x%x,"
840 " prot_type=%u\n", __func__
, pkt
->ref_tag
, pkt
->app_tag
, protcnt
,
841 (int)scsi_get_lba(cmd
), scsi_get_prot_type(cmd
)));
846 qla24xx_walk_and_build_sglist(struct qla_hw_data
*ha
, srb_t
*sp
, uint32_t *dsd
,
850 uint8_t avail_dsds
= 0;
851 uint32_t dsd_list_len
;
852 struct dsd_dma
*dsd_ptr
;
853 struct scatterlist
*sg
;
854 uint32_t *cur_dsd
= dsd
;
856 uint16_t used_dsds
= tot_dsds
;
860 scsi_for_each_sg(sp
->cmd
, sg
, tot_dsds
, i
) {
863 /* Allocate additional continuation packets? */
864 if (avail_dsds
== 0) {
865 avail_dsds
= (used_dsds
> QLA_DSDS_PER_IOCB
) ?
866 QLA_DSDS_PER_IOCB
: used_dsds
;
867 dsd_list_len
= (avail_dsds
+ 1) * 12;
868 used_dsds
-= avail_dsds
;
870 /* allocate tracking DS */
871 dsd_ptr
= kzalloc(sizeof(struct dsd_dma
), GFP_ATOMIC
);
875 /* allocate new list */
876 dsd_ptr
->dsd_addr
= next_dsd
=
877 dma_pool_alloc(ha
->dl_dma_pool
, GFP_ATOMIC
,
878 &dsd_ptr
->dsd_list_dma
);
882 * Need to cleanup only this dsd_ptr, rest
883 * will be done by sp_free_dma()
889 list_add_tail(&dsd_ptr
->list
,
890 &((struct crc_context
*)sp
->ctx
)->dsd_list
);
892 sp
->flags
|= SRB_CRC_CTX_DSD_VALID
;
894 /* add new list to cmd iocb or last list */
895 *cur_dsd
++ = cpu_to_le32(LSD(dsd_ptr
->dsd_list_dma
));
896 *cur_dsd
++ = cpu_to_le32(MSD(dsd_ptr
->dsd_list_dma
));
897 *cur_dsd
++ = dsd_list_len
;
898 cur_dsd
= (uint32_t *)next_dsd
;
900 sle_dma
= sg_dma_address(sg
);
901 DEBUG18(printk("%s(): %p, sg entry %d - addr =0x%x 0x%x,"
902 " len =%d\n", __func__
, cur_dsd
, i
, LSD(sle_dma
),
903 MSD(sle_dma
), sg_dma_len(sg
)));
904 *cur_dsd
++ = cpu_to_le32(LSD(sle_dma
));
905 *cur_dsd
++ = cpu_to_le32(MSD(sle_dma
));
906 *cur_dsd
++ = cpu_to_le32(sg_dma_len(sg
));
909 if (scsi_get_prot_op(sp
->cmd
) == SCSI_PROT_WRITE_PASS
) {
910 cp
= page_address(sg_page(sg
)) + sg
->offset
;
911 DEBUG18(printk("%s(): User Data buffer= %p:\n",
915 /* Null termination */
923 qla24xx_walk_and_build_prot_sglist(struct qla_hw_data
*ha
, srb_t
*sp
,
928 uint8_t avail_dsds
= 0;
929 uint32_t dsd_list_len
;
930 struct dsd_dma
*dsd_ptr
;
931 struct scatterlist
*sg
;
933 struct scsi_cmnd
*cmd
;
934 uint32_t *cur_dsd
= dsd
;
935 uint16_t used_dsds
= tot_dsds
;
941 scsi_for_each_prot_sg(cmd
, sg
, tot_dsds
, i
) {
944 /* Allocate additional continuation packets? */
945 if (avail_dsds
== 0) {
946 avail_dsds
= (used_dsds
> QLA_DSDS_PER_IOCB
) ?
947 QLA_DSDS_PER_IOCB
: used_dsds
;
948 dsd_list_len
= (avail_dsds
+ 1) * 12;
949 used_dsds
-= avail_dsds
;
951 /* allocate tracking DS */
952 dsd_ptr
= kzalloc(sizeof(struct dsd_dma
), GFP_ATOMIC
);
956 /* allocate new list */
957 dsd_ptr
->dsd_addr
= next_dsd
=
958 dma_pool_alloc(ha
->dl_dma_pool
, GFP_ATOMIC
,
959 &dsd_ptr
->dsd_list_dma
);
963 * Need to cleanup only this dsd_ptr, rest
964 * will be done by sp_free_dma()
970 list_add_tail(&dsd_ptr
->list
,
971 &((struct crc_context
*)sp
->ctx
)->dsd_list
);
973 sp
->flags
|= SRB_CRC_CTX_DSD_VALID
;
975 /* add new list to cmd iocb or last list */
976 *cur_dsd
++ = cpu_to_le32(LSD(dsd_ptr
->dsd_list_dma
));
977 *cur_dsd
++ = cpu_to_le32(MSD(dsd_ptr
->dsd_list_dma
));
978 *cur_dsd
++ = dsd_list_len
;
979 cur_dsd
= (uint32_t *)next_dsd
;
981 sle_dma
= sg_dma_address(sg
);
982 if (scsi_get_prot_op(sp
->cmd
) == SCSI_PROT_WRITE_PASS
) {
983 DEBUG18(printk(KERN_DEBUG
984 "%s(): %p, sg entry %d - addr =0x%x"
985 "0x%x, len =%d\n", __func__
, cur_dsd
, i
,
986 LSD(sle_dma
), MSD(sle_dma
), sg_dma_len(sg
)));
988 *cur_dsd
++ = cpu_to_le32(LSD(sle_dma
));
989 *cur_dsd
++ = cpu_to_le32(MSD(sle_dma
));
990 *cur_dsd
++ = cpu_to_le32(sg_dma_len(sg
));
992 if (scsi_get_prot_op(sp
->cmd
) == SCSI_PROT_WRITE_PASS
) {
993 cp
= page_address(sg_page(sg
)) + sg
->offset
;
994 DEBUG18(printk("%s(): Protection Data buffer = %p:\n",
999 /* Null termination */
1007 * qla24xx_build_scsi_crc_2_iocbs() - Build IOCB command utilizing Command
1008 * Type 6 IOCB types.
1010 * @sp: SRB command to process
1011 * @cmd_pkt: Command type 3 IOCB
1012 * @tot_dsds: Total number of segments to transfer
1015 qla24xx_build_scsi_crc_2_iocbs(srb_t
*sp
, struct cmd_type_crc_2
*cmd_pkt
,
1016 uint16_t tot_dsds
, uint16_t tot_prot_dsds
, uint16_t fw_prot_opts
)
1018 uint32_t *cur_dsd
, *fcp_dl
;
1019 scsi_qla_host_t
*vha
;
1020 struct scsi_cmnd
*cmd
;
1021 struct scatterlist
*cur_seg
;
1023 uint32_t total_bytes
;
1024 uint32_t data_bytes
;
1026 uint8_t bundling
= 1;
1029 struct crc_context
*crc_ctx_pkt
= NULL
;
1030 struct qla_hw_data
*ha
;
1031 uint8_t additional_fcpcdb_len
;
1032 uint16_t fcp_cmnd_len
;
1033 struct fcp_cmnd
*fcp_cmnd
;
1034 dma_addr_t crc_ctx_dma
;
1039 /* Update entry type to indicate Command Type CRC_2 IOCB */
1040 *((uint32_t *)(&cmd_pkt
->entry_type
)) =
1041 __constant_cpu_to_le32(COMMAND_TYPE_CRC_2
);
1043 /* No data transfer */
1044 data_bytes
= scsi_bufflen(cmd
);
1045 if (!data_bytes
|| cmd
->sc_data_direction
== DMA_NONE
) {
1046 DEBUG18(printk(KERN_INFO
"%s: Zero data bytes or DMA-NONE %d\n",
1047 __func__
, data_bytes
));
1048 cmd_pkt
->byte_count
= __constant_cpu_to_le32(0);
1052 vha
= sp
->fcport
->vha
;
1055 DEBUG18(printk(KERN_DEBUG
1056 "%s(%ld): Executing cmd sp %p, pid=%ld, prot_op=%u.\n", __func__
,
1057 vha
->host_no
, sp
, cmd
->serial_number
, scsi_get_prot_op(sp
->cmd
)));
1059 cmd_pkt
->vp_index
= sp
->fcport
->vp_idx
;
1061 /* Set transfer direction */
1062 if (cmd
->sc_data_direction
== DMA_TO_DEVICE
) {
1063 cmd_pkt
->control_flags
=
1064 __constant_cpu_to_le16(CF_WRITE_DATA
);
1065 } else if (cmd
->sc_data_direction
== DMA_FROM_DEVICE
) {
1066 cmd_pkt
->control_flags
=
1067 __constant_cpu_to_le16(CF_READ_DATA
);
1070 tot_prot_dsds
= scsi_prot_sg_count(cmd
);
1074 /* Allocate CRC context from global pool */
1075 crc_ctx_pkt
= sp
->ctx
= dma_pool_alloc(ha
->dl_dma_pool
,
1076 GFP_ATOMIC
, &crc_ctx_dma
);
1079 goto crc_queuing_error
;
1081 /* Zero out CTX area. */
1082 clr_ptr
= (uint8_t *)crc_ctx_pkt
;
1083 memset(clr_ptr
, 0, sizeof(*crc_ctx_pkt
));
1085 crc_ctx_pkt
->crc_ctx_dma
= crc_ctx_dma
;
1087 sp
->flags
|= SRB_CRC_CTX_DMA_VALID
;
1090 crc_ctx_pkt
->handle
= cmd_pkt
->handle
;
1092 INIT_LIST_HEAD(&crc_ctx_pkt
->dsd_list
);
1094 qla24xx_set_t10dif_tags(cmd
, (struct fw_dif_context
*)
1095 &crc_ctx_pkt
->ref_tag
, tot_prot_dsds
);
1097 cmd_pkt
->crc_context_address
[0] = cpu_to_le32(LSD(crc_ctx_dma
));
1098 cmd_pkt
->crc_context_address
[1] = cpu_to_le32(MSD(crc_ctx_dma
));
1099 cmd_pkt
->crc_context_len
= CRC_CONTEXT_LEN_FW
;
1101 /* Determine SCSI command length -- align to 4 byte boundary */
1102 if (cmd
->cmd_len
> 16) {
1103 DEBUG18(printk(KERN_INFO
"%s(): **** SCSI CMD > 16\n",
1105 additional_fcpcdb_len
= cmd
->cmd_len
- 16;
1106 if ((cmd
->cmd_len
% 4) != 0) {
1107 /* SCSI cmd > 16 bytes must be multiple of 4 */
1108 goto crc_queuing_error
;
1110 fcp_cmnd_len
= 12 + cmd
->cmd_len
+ 4;
1112 additional_fcpcdb_len
= 0;
1113 fcp_cmnd_len
= 12 + 16 + 4;
1116 fcp_cmnd
= &crc_ctx_pkt
->fcp_cmnd
;
1118 fcp_cmnd
->additional_cdb_len
= additional_fcpcdb_len
;
1119 if (cmd
->sc_data_direction
== DMA_TO_DEVICE
)
1120 fcp_cmnd
->additional_cdb_len
|= 1;
1121 else if (cmd
->sc_data_direction
== DMA_FROM_DEVICE
)
1122 fcp_cmnd
->additional_cdb_len
|= 2;
1124 int_to_scsilun(sp
->cmd
->device
->lun
, &fcp_cmnd
->lun
);
1125 memcpy(fcp_cmnd
->cdb
, cmd
->cmnd
, cmd
->cmd_len
);
1126 cmd_pkt
->fcp_cmnd_dseg_len
= cpu_to_le16(fcp_cmnd_len
);
1127 cmd_pkt
->fcp_cmnd_dseg_address
[0] = cpu_to_le32(
1128 LSD(crc_ctx_dma
+ CRC_CONTEXT_FCPCMND_OFF
));
1129 cmd_pkt
->fcp_cmnd_dseg_address
[1] = cpu_to_le32(
1130 MSD(crc_ctx_dma
+ CRC_CONTEXT_FCPCMND_OFF
));
1131 fcp_cmnd
->task_attribute
= 0;
1132 fcp_cmnd
->task_managment
= 0;
1134 cmd_pkt
->fcp_rsp_dseg_len
= 0; /* Let response come in status iocb */
1136 DEBUG18(printk(KERN_INFO
"%s(%ld): Total SG(s) Entries %d, Data"
1137 "entries %d, data bytes %d, Protection entries %d\n",
1138 __func__
, vha
->host_no
, tot_dsds
, (tot_dsds
-tot_prot_dsds
),
1139 data_bytes
, tot_prot_dsds
));
1141 /* Compute dif len and adjust data len to incude protection */
1142 total_bytes
= data_bytes
;
1144 blk_size
= cmd
->device
->sector_size
;
1145 if (scsi_get_prot_type(cmd
) == SCSI_PROT_DIF_TYPE1
) {
1146 dif_bytes
= (data_bytes
/ blk_size
) * 8;
1147 total_bytes
+= dif_bytes
;
1150 if (!ql2xenablehba_err_chk
)
1151 fw_prot_opts
|= 0x10; /* Disable Guard tag checking */
1154 cur_dsd
= (uint32_t *) &crc_ctx_pkt
->u
.nobundling
.data_address
;
1157 * Configure Bundling if we need to fetch interlaving
1158 * protection PCI accesses
1160 fw_prot_opts
|= PO_ENABLE_DIF_BUNDLING
;
1161 crc_ctx_pkt
->u
.bundling
.dif_byte_count
= cpu_to_le32(dif_bytes
);
1162 crc_ctx_pkt
->u
.bundling
.dseg_count
= cpu_to_le16(tot_dsds
-
1164 cur_dsd
= (uint32_t *) &crc_ctx_pkt
->u
.bundling
.data_address
;
1167 /* Finish the common fields of CRC pkt */
1168 crc_ctx_pkt
->blk_size
= cpu_to_le16(blk_size
);
1169 crc_ctx_pkt
->prot_opts
= cpu_to_le16(fw_prot_opts
);
1170 crc_ctx_pkt
->byte_count
= cpu_to_le32(data_bytes
);
1171 crc_ctx_pkt
->guard_seed
= __constant_cpu_to_le16(0);
1172 /* Fibre channel byte count */
1173 cmd_pkt
->byte_count
= cpu_to_le32(total_bytes
);
1174 fcp_dl
= (uint32_t *)(crc_ctx_pkt
->fcp_cmnd
.cdb
+ 16 +
1175 additional_fcpcdb_len
);
1176 *fcp_dl
= htonl(total_bytes
);
1178 DEBUG18(printk(KERN_INFO
"%s(%ld): dif bytes = 0x%x (%d), total bytes"
1179 " = 0x%x (%d), dat block size =0x%x (%d)\n", __func__
,
1180 vha
->host_no
, dif_bytes
, dif_bytes
, total_bytes
, total_bytes
,
1181 crc_ctx_pkt
->blk_size
, crc_ctx_pkt
->blk_size
));
1183 /* Walks data segments */
1185 cmd_pkt
->control_flags
|=
1186 __constant_cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE
);
1187 if (qla24xx_walk_and_build_sglist(ha
, sp
, cur_dsd
,
1188 (tot_dsds
- tot_prot_dsds
)))
1189 goto crc_queuing_error
;
1191 if (bundling
&& tot_prot_dsds
) {
1192 /* Walks dif segments */
1193 cur_seg
= scsi_prot_sglist(cmd
);
1194 cmd_pkt
->control_flags
|=
1195 __constant_cpu_to_le16(CF_DIF_SEG_DESCR_ENABLE
);
1196 cur_dsd
= (uint32_t *) &crc_ctx_pkt
->u
.bundling
.dif_address
;
1197 if (qla24xx_walk_and_build_prot_sglist(ha
, sp
, cur_dsd
,
1199 goto crc_queuing_error
;
1204 DEBUG18(qla_printk(KERN_INFO
, ha
,
1205 "CMD sent FAILED crc_q error:sp = %p\n", sp
));
1206 /* Cleanup will be performed by the caller */
1208 return QLA_FUNCTION_FAILED
;
1212 * qla24xx_start_scsi() - Send a SCSI command to the ISP
1213 * @sp: command to send to the ISP
1215 * Returns non-zero if a failure occurred, else zero.
1218 qla24xx_start_scsi(srb_t
*sp
)
1221 unsigned long flags
;
1225 struct cmd_type_7
*cmd_pkt
;
1229 struct req_que
*req
= NULL
;
1230 struct rsp_que
*rsp
= NULL
;
1231 struct scsi_cmnd
*cmd
= sp
->cmd
;
1232 struct scsi_qla_host
*vha
= sp
->fcport
->vha
;
1233 struct qla_hw_data
*ha
= vha
->hw
;
1235 /* Setup device pointers. */
1238 qla25xx_set_que(sp
, &rsp
);
1241 /* So we know we haven't pci_map'ed anything yet */
1244 /* Send marker if required */
1245 if (vha
->marker_needed
!= 0) {
1246 if (qla2x00_marker(vha
, req
, rsp
, 0, 0, MK_SYNC_ALL
)
1248 return QLA_FUNCTION_FAILED
;
1249 vha
->marker_needed
= 0;
1252 /* Acquire ring specific lock */
1253 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1255 /* Check for room in outstanding command list. */
1256 handle
= req
->current_outstanding_cmd
;
1257 for (index
= 1; index
< MAX_OUTSTANDING_COMMANDS
; index
++) {
1259 if (handle
== MAX_OUTSTANDING_COMMANDS
)
1261 if (!req
->outstanding_cmds
[handle
])
1264 if (index
== MAX_OUTSTANDING_COMMANDS
)
1267 /* Map the sg table so we have an accurate count of sg entries needed */
1268 if (scsi_sg_count(cmd
)) {
1269 nseg
= dma_map_sg(&ha
->pdev
->dev
, scsi_sglist(cmd
),
1270 scsi_sg_count(cmd
), cmd
->sc_data_direction
);
1271 if (unlikely(!nseg
))
1278 req_cnt
= qla24xx_calc_iocbs(tot_dsds
);
1279 if (req
->cnt
< (req_cnt
+ 2)) {
1280 cnt
= RD_REG_DWORD_RELAXED(req
->req_q_out
);
1282 if (req
->ring_index
< cnt
)
1283 req
->cnt
= cnt
- req
->ring_index
;
1285 req
->cnt
= req
->length
-
1286 (req
->ring_index
- cnt
);
1288 if (req
->cnt
< (req_cnt
+ 2))
1291 /* Build command packet. */
1292 req
->current_outstanding_cmd
= handle
;
1293 req
->outstanding_cmds
[handle
] = sp
;
1294 sp
->handle
= handle
;
1295 sp
->cmd
->host_scribble
= (unsigned char *)(unsigned long)handle
;
1296 req
->cnt
-= req_cnt
;
1298 cmd_pkt
= (struct cmd_type_7
*)req
->ring_ptr
;
1299 cmd_pkt
->handle
= MAKE_HANDLE(req
->id
, handle
);
1301 /* Zero out remaining portion of packet. */
1302 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */
1303 clr_ptr
= (uint32_t *)cmd_pkt
+ 2;
1304 memset(clr_ptr
, 0, REQUEST_ENTRY_SIZE
- 8);
1305 cmd_pkt
->dseg_count
= cpu_to_le16(tot_dsds
);
1307 /* Set NPORT-ID and LUN number*/
1308 cmd_pkt
->nport_handle
= cpu_to_le16(sp
->fcport
->loop_id
);
1309 cmd_pkt
->port_id
[0] = sp
->fcport
->d_id
.b
.al_pa
;
1310 cmd_pkt
->port_id
[1] = sp
->fcport
->d_id
.b
.area
;
1311 cmd_pkt
->port_id
[2] = sp
->fcport
->d_id
.b
.domain
;
1312 cmd_pkt
->vp_index
= sp
->fcport
->vp_idx
;
1314 int_to_scsilun(sp
->cmd
->device
->lun
, &cmd_pkt
->lun
);
1315 host_to_fcp_swap((uint8_t *)&cmd_pkt
->lun
, sizeof(cmd_pkt
->lun
));
1317 /* Load SCSI command packet. */
1318 memcpy(cmd_pkt
->fcp_cdb
, cmd
->cmnd
, cmd
->cmd_len
);
1319 host_to_fcp_swap(cmd_pkt
->fcp_cdb
, sizeof(cmd_pkt
->fcp_cdb
));
1321 cmd_pkt
->byte_count
= cpu_to_le32((uint32_t)scsi_bufflen(cmd
));
1323 /* Build IOCB segments */
1324 qla24xx_build_scsi_iocbs(sp
, cmd_pkt
, tot_dsds
);
1326 /* Set total data segment count. */
1327 cmd_pkt
->entry_count
= (uint8_t)req_cnt
;
1328 /* Specify response queue number where completion should happen */
1329 cmd_pkt
->entry_status
= (uint8_t) rsp
->id
;
1332 /* Adjust ring index. */
1334 if (req
->ring_index
== req
->length
) {
1335 req
->ring_index
= 0;
1336 req
->ring_ptr
= req
->ring
;
1340 sp
->flags
|= SRB_DMA_VALID
;
1342 /* Set chip new ring index. */
1343 WRT_REG_DWORD(req
->req_q_in
, req
->ring_index
);
1344 RD_REG_DWORD_RELAXED(&ha
->iobase
->isp24
.hccr
);
1346 /* Manage unprocessed RIO/ZIO commands in response queue. */
1347 if (vha
->flags
.process_response_queue
&&
1348 rsp
->ring_ptr
->signature
!= RESPONSE_PROCESSED
)
1349 qla24xx_process_response_queue(vha
, rsp
);
1351 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1356 scsi_dma_unmap(cmd
);
1358 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1360 return QLA_FUNCTION_FAILED
;
1365 * qla24xx_dif_start_scsi() - Send a SCSI command to the ISP
1366 * @sp: command to send to the ISP
1368 * Returns non-zero if a failure occurred, else zero.
1371 qla24xx_dif_start_scsi(srb_t
*sp
)
1374 unsigned long flags
;
1379 uint16_t req_cnt
= 0;
1381 uint16_t tot_prot_dsds
;
1382 uint16_t fw_prot_opts
= 0;
1383 struct req_que
*req
= NULL
;
1384 struct rsp_que
*rsp
= NULL
;
1385 struct scsi_cmnd
*cmd
= sp
->cmd
;
1386 struct scsi_qla_host
*vha
= sp
->fcport
->vha
;
1387 struct qla_hw_data
*ha
= vha
->hw
;
1388 struct cmd_type_crc_2
*cmd_pkt
;
1389 uint32_t status
= 0;
1391 #define QDSS_GOT_Q_SPACE BIT_0
1393 /* Only process protection in this routine */
1394 if (scsi_get_prot_op(cmd
) == SCSI_PROT_NORMAL
)
1395 return qla24xx_start_scsi(sp
);
1397 /* Setup device pointers. */
1399 qla25xx_set_que(sp
, &rsp
);
1402 /* So we know we haven't pci_map'ed anything yet */
1405 /* Send marker if required */
1406 if (vha
->marker_needed
!= 0) {
1407 if (qla2x00_marker(vha
, req
, rsp
, 0, 0, MK_SYNC_ALL
) !=
1409 return QLA_FUNCTION_FAILED
;
1410 vha
->marker_needed
= 0;
1413 /* Acquire ring specific lock */
1414 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1416 /* Check for room in outstanding command list. */
1417 handle
= req
->current_outstanding_cmd
;
1418 for (index
= 1; index
< MAX_OUTSTANDING_COMMANDS
; index
++) {
1420 if (handle
== MAX_OUTSTANDING_COMMANDS
)
1422 if (!req
->outstanding_cmds
[handle
])
1426 if (index
== MAX_OUTSTANDING_COMMANDS
)
1429 /* Compute number of required data segments */
1430 /* Map the sg table so we have an accurate count of sg entries needed */
1431 if (scsi_sg_count(cmd
)) {
1432 nseg
= dma_map_sg(&ha
->pdev
->dev
, scsi_sglist(cmd
),
1433 scsi_sg_count(cmd
), cmd
->sc_data_direction
);
1434 if (unlikely(!nseg
))
1437 sp
->flags
|= SRB_DMA_VALID
;
1441 /* number of required data segments */
1444 /* Compute number of required protection segments */
1445 if (qla24xx_configure_prot_mode(sp
, &fw_prot_opts
)) {
1446 nseg
= dma_map_sg(&ha
->pdev
->dev
, scsi_prot_sglist(cmd
),
1447 scsi_prot_sg_count(cmd
), cmd
->sc_data_direction
);
1448 if (unlikely(!nseg
))
1451 sp
->flags
|= SRB_CRC_PROT_DMA_VALID
;
1457 /* Total Data and protection sg segment(s) */
1458 tot_prot_dsds
= nseg
;
1460 if (req
->cnt
< (req_cnt
+ 2)) {
1461 cnt
= RD_REG_DWORD_RELAXED(req
->req_q_out
);
1463 if (req
->ring_index
< cnt
)
1464 req
->cnt
= cnt
- req
->ring_index
;
1466 req
->cnt
= req
->length
-
1467 (req
->ring_index
- cnt
);
1470 if (req
->cnt
< (req_cnt
+ 2))
1473 status
|= QDSS_GOT_Q_SPACE
;
1475 /* Build header part of command packet (excluding the OPCODE). */
1476 req
->current_outstanding_cmd
= handle
;
1477 req
->outstanding_cmds
[handle
] = sp
;
1478 sp
->cmd
->host_scribble
= (unsigned char *)(unsigned long)handle
;
1479 req
->cnt
-= req_cnt
;
1481 /* Fill-in common area */
1482 cmd_pkt
= (struct cmd_type_crc_2
*)req
->ring_ptr
;
1483 cmd_pkt
->handle
= MAKE_HANDLE(req
->id
, handle
);
1485 clr_ptr
= (uint32_t *)cmd_pkt
+ 2;
1486 memset(clr_ptr
, 0, REQUEST_ENTRY_SIZE
- 8);
1488 /* Set NPORT-ID and LUN number*/
1489 cmd_pkt
->nport_handle
= cpu_to_le16(sp
->fcport
->loop_id
);
1490 cmd_pkt
->port_id
[0] = sp
->fcport
->d_id
.b
.al_pa
;
1491 cmd_pkt
->port_id
[1] = sp
->fcport
->d_id
.b
.area
;
1492 cmd_pkt
->port_id
[2] = sp
->fcport
->d_id
.b
.domain
;
1494 int_to_scsilun(sp
->cmd
->device
->lun
, &cmd_pkt
->lun
);
1495 host_to_fcp_swap((uint8_t *)&cmd_pkt
->lun
, sizeof(cmd_pkt
->lun
));
1497 /* Total Data and protection segment(s) */
1498 cmd_pkt
->dseg_count
= cpu_to_le16(tot_dsds
);
1500 /* Build IOCB segments and adjust for data protection segments */
1501 if (qla24xx_build_scsi_crc_2_iocbs(sp
, (struct cmd_type_crc_2
*)
1502 req
->ring_ptr
, tot_dsds
, tot_prot_dsds
, fw_prot_opts
) !=
1506 cmd_pkt
->entry_count
= (uint8_t)req_cnt
;
1507 /* Specify response queue number where completion should happen */
1508 cmd_pkt
->entry_status
= (uint8_t) rsp
->id
;
1509 cmd_pkt
->timeout
= __constant_cpu_to_le16(0);
1512 /* Adjust ring index. */
1514 if (req
->ring_index
== req
->length
) {
1515 req
->ring_index
= 0;
1516 req
->ring_ptr
= req
->ring
;
1520 /* Set chip new ring index. */
1521 WRT_REG_DWORD(req
->req_q_in
, req
->ring_index
);
1522 RD_REG_DWORD_RELAXED(&ha
->iobase
->isp24
.hccr
);
1524 /* Manage unprocessed RIO/ZIO commands in response queue. */
1525 if (vha
->flags
.process_response_queue
&&
1526 rsp
->ring_ptr
->signature
!= RESPONSE_PROCESSED
)
1527 qla24xx_process_response_queue(vha
, rsp
);
1529 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1534 if (status
& QDSS_GOT_Q_SPACE
) {
1535 req
->outstanding_cmds
[handle
] = NULL
;
1536 req
->cnt
+= req_cnt
;
1538 /* Cleanup will be performed by the caller (queuecommand) */
1540 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1542 DEBUG18(qla_printk(KERN_INFO
, ha
,
1543 "CMD sent FAILED SCSI prot_op:%02x\n", scsi_get_prot_op(cmd
)));
1544 return QLA_FUNCTION_FAILED
;
1548 static void qla25xx_set_que(srb_t
*sp
, struct rsp_que
**rsp
)
1550 struct scsi_cmnd
*cmd
= sp
->cmd
;
1551 struct qla_hw_data
*ha
= sp
->fcport
->vha
->hw
;
1552 int affinity
= cmd
->request
->cpu
;
1554 if (ha
->flags
.cpu_affinity_enabled
&& affinity
>= 0 &&
1555 affinity
< ha
->max_rsp_queues
- 1)
1556 *rsp
= ha
->rsp_q_map
[affinity
+ 1];
1558 *rsp
= ha
->rsp_q_map
[0];
1561 /* Generic Control-SRB manipulation functions. */
1564 qla2x00_alloc_iocbs(srb_t
*sp
)
1566 scsi_qla_host_t
*vha
= sp
->fcport
->vha
;
1567 struct qla_hw_data
*ha
= vha
->hw
;
1568 struct req_que
*req
= ha
->req_q_map
[0];
1569 device_reg_t __iomem
*reg
= ISP_QUE_REG(ha
, req
->id
);
1570 uint32_t index
, handle
;
1572 uint16_t cnt
, req_cnt
;
1577 /* Check for room in outstanding command list. */
1578 handle
= req
->current_outstanding_cmd
;
1579 for (index
= 1; index
< MAX_OUTSTANDING_COMMANDS
; index
++) {
1581 if (handle
== MAX_OUTSTANDING_COMMANDS
)
1583 if (!req
->outstanding_cmds
[handle
])
1586 if (index
== MAX_OUTSTANDING_COMMANDS
)
1589 /* Check for room on request queue. */
1590 if (req
->cnt
< req_cnt
) {
1592 cnt
= RD_REG_DWORD(®
->isp25mq
.req_q_out
);
1593 else if (IS_FWI2_CAPABLE(ha
))
1594 cnt
= RD_REG_DWORD(®
->isp24
.req_q_out
);
1596 cnt
= qla2x00_debounce_register(
1597 ISP_REQ_Q_OUT(ha
, ®
->isp
));
1599 if (req
->ring_index
< cnt
)
1600 req
->cnt
= cnt
- req
->ring_index
;
1602 req
->cnt
= req
->length
-
1603 (req
->ring_index
- cnt
);
1605 if (req
->cnt
< req_cnt
)
1609 req
->current_outstanding_cmd
= handle
;
1610 req
->outstanding_cmds
[handle
] = sp
;
1611 req
->cnt
-= req_cnt
;
1613 pkt
= req
->ring_ptr
;
1614 memset(pkt
, 0, REQUEST_ENTRY_SIZE
);
1615 pkt
->entry_count
= req_cnt
;
1616 pkt
->handle
= handle
;
1617 sp
->handle
= handle
;
1624 qla2x00_start_iocbs(srb_t
*sp
)
1626 struct qla_hw_data
*ha
= sp
->fcport
->vha
->hw
;
1627 struct req_que
*req
= ha
->req_q_map
[0];
1628 device_reg_t __iomem
*reg
= ISP_QUE_REG(ha
, req
->id
);
1629 struct device_reg_2xxx __iomem
*ioreg
= &ha
->iobase
->isp
;
1631 if (IS_QLA82XX(ha
)) {
1632 qla82xx_start_iocbs(sp
);
1634 /* Adjust ring index. */
1636 if (req
->ring_index
== req
->length
) {
1637 req
->ring_index
= 0;
1638 req
->ring_ptr
= req
->ring
;
1642 /* Set chip new ring index. */
1644 WRT_REG_DWORD(®
->isp25mq
.req_q_in
, req
->ring_index
);
1645 RD_REG_DWORD(&ioreg
->hccr
);
1646 } else if (IS_QLA82XX(ha
)) {
1647 qla82xx_start_iocbs(sp
);
1648 } else if (IS_FWI2_CAPABLE(ha
)) {
1649 WRT_REG_DWORD(®
->isp24
.req_q_in
, req
->ring_index
);
1650 RD_REG_DWORD_RELAXED(®
->isp24
.req_q_in
);
1652 WRT_REG_WORD(ISP_REQ_Q_IN(ha
, ®
->isp
),
1654 RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha
, ®
->isp
));
1660 qla24xx_login_iocb(srb_t
*sp
, struct logio_entry_24xx
*logio
)
1662 struct srb_ctx
*ctx
= sp
->ctx
;
1663 struct srb_iocb
*lio
= ctx
->u
.iocb_cmd
;
1665 logio
->entry_type
= LOGINOUT_PORT_IOCB_TYPE
;
1666 logio
->control_flags
= cpu_to_le16(LCF_COMMAND_PLOGI
);
1667 if (lio
->u
.logio
.flags
& SRB_LOGIN_COND_PLOGI
)
1668 logio
->control_flags
|= cpu_to_le16(LCF_COND_PLOGI
);
1669 if (lio
->u
.logio
.flags
& SRB_LOGIN_SKIP_PRLI
)
1670 logio
->control_flags
|= cpu_to_le16(LCF_SKIP_PRLI
);
1671 logio
->nport_handle
= cpu_to_le16(sp
->fcport
->loop_id
);
1672 logio
->port_id
[0] = sp
->fcport
->d_id
.b
.al_pa
;
1673 logio
->port_id
[1] = sp
->fcport
->d_id
.b
.area
;
1674 logio
->port_id
[2] = sp
->fcport
->d_id
.b
.domain
;
1675 logio
->vp_index
= sp
->fcport
->vp_idx
;
1679 qla2x00_login_iocb(srb_t
*sp
, struct mbx_entry
*mbx
)
1681 struct qla_hw_data
*ha
= sp
->fcport
->vha
->hw
;
1682 struct srb_ctx
*ctx
= sp
->ctx
;
1683 struct srb_iocb
*lio
= ctx
->u
.iocb_cmd
;
1686 mbx
->entry_type
= MBX_IOCB_TYPE
;;
1687 SET_TARGET_ID(ha
, mbx
->loop_id
, sp
->fcport
->loop_id
);
1688 mbx
->mb0
= cpu_to_le16(MBC_LOGIN_FABRIC_PORT
);
1689 opts
= lio
->u
.logio
.flags
& SRB_LOGIN_COND_PLOGI
? BIT_0
: 0;
1690 opts
|= lio
->u
.logio
.flags
& SRB_LOGIN_SKIP_PRLI
? BIT_1
: 0;
1691 if (HAS_EXTENDED_IDS(ha
)) {
1692 mbx
->mb1
= cpu_to_le16(sp
->fcport
->loop_id
);
1693 mbx
->mb10
= cpu_to_le16(opts
);
1695 mbx
->mb1
= cpu_to_le16((sp
->fcport
->loop_id
<< 8) | opts
);
1697 mbx
->mb2
= cpu_to_le16(sp
->fcport
->d_id
.b
.domain
);
1698 mbx
->mb3
= cpu_to_le16(sp
->fcport
->d_id
.b
.area
<< 8 |
1699 sp
->fcport
->d_id
.b
.al_pa
);
1700 mbx
->mb9
= cpu_to_le16(sp
->fcport
->vp_idx
);
1704 qla24xx_logout_iocb(srb_t
*sp
, struct logio_entry_24xx
*logio
)
1706 logio
->entry_type
= LOGINOUT_PORT_IOCB_TYPE
;
1707 logio
->control_flags
=
1708 cpu_to_le16(LCF_COMMAND_LOGO
|LCF_IMPL_LOGO
);
1709 logio
->nport_handle
= cpu_to_le16(sp
->fcport
->loop_id
);
1710 logio
->port_id
[0] = sp
->fcport
->d_id
.b
.al_pa
;
1711 logio
->port_id
[1] = sp
->fcport
->d_id
.b
.area
;
1712 logio
->port_id
[2] = sp
->fcport
->d_id
.b
.domain
;
1713 logio
->vp_index
= sp
->fcport
->vp_idx
;
1717 qla2x00_logout_iocb(srb_t
*sp
, struct mbx_entry
*mbx
)
1719 struct qla_hw_data
*ha
= sp
->fcport
->vha
->hw
;
1721 mbx
->entry_type
= MBX_IOCB_TYPE
;;
1722 SET_TARGET_ID(ha
, mbx
->loop_id
, sp
->fcport
->loop_id
);
1723 mbx
->mb0
= cpu_to_le16(MBC_LOGOUT_FABRIC_PORT
);
1724 mbx
->mb1
= HAS_EXTENDED_IDS(ha
) ?
1725 cpu_to_le16(sp
->fcport
->loop_id
):
1726 cpu_to_le16(sp
->fcport
->loop_id
<< 8);
1727 mbx
->mb2
= cpu_to_le16(sp
->fcport
->d_id
.b
.domain
);
1728 mbx
->mb3
= cpu_to_le16(sp
->fcport
->d_id
.b
.area
<< 8 |
1729 sp
->fcport
->d_id
.b
.al_pa
);
1730 mbx
->mb9
= cpu_to_le16(sp
->fcport
->vp_idx
);
1731 /* Implicit: mbx->mbx10 = 0. */
1735 qla24xx_adisc_iocb(srb_t
*sp
, struct logio_entry_24xx
*logio
)
1737 logio
->entry_type
= LOGINOUT_PORT_IOCB_TYPE
;
1738 logio
->control_flags
= cpu_to_le16(LCF_COMMAND_ADISC
);
1739 logio
->nport_handle
= cpu_to_le16(sp
->fcport
->loop_id
);
1740 logio
->vp_index
= sp
->fcport
->vp_idx
;
1744 qla2x00_adisc_iocb(srb_t
*sp
, struct mbx_entry
*mbx
)
1746 struct qla_hw_data
*ha
= sp
->fcport
->vha
->hw
;
1748 mbx
->entry_type
= MBX_IOCB_TYPE
;
1749 SET_TARGET_ID(ha
, mbx
->loop_id
, sp
->fcport
->loop_id
);
1750 mbx
->mb0
= cpu_to_le16(MBC_GET_PORT_DATABASE
);
1751 if (HAS_EXTENDED_IDS(ha
)) {
1752 mbx
->mb1
= cpu_to_le16(sp
->fcport
->loop_id
);
1753 mbx
->mb10
= cpu_to_le16(BIT_0
);
1755 mbx
->mb1
= cpu_to_le16((sp
->fcport
->loop_id
<< 8) | BIT_0
);
1757 mbx
->mb2
= cpu_to_le16(MSW(ha
->async_pd_dma
));
1758 mbx
->mb3
= cpu_to_le16(LSW(ha
->async_pd_dma
));
1759 mbx
->mb6
= cpu_to_le16(MSW(MSD(ha
->async_pd_dma
)));
1760 mbx
->mb7
= cpu_to_le16(LSW(MSD(ha
->async_pd_dma
)));
1761 mbx
->mb9
= cpu_to_le16(sp
->fcport
->vp_idx
);
1765 qla24xx_tm_iocb(srb_t
*sp
, struct tsk_mgmt_entry
*tsk
)
1769 struct fc_port
*fcport
= sp
->fcport
;
1770 scsi_qla_host_t
*vha
= fcport
->vha
;
1771 struct qla_hw_data
*ha
= vha
->hw
;
1772 struct srb_ctx
*ctx
= sp
->ctx
;
1773 struct srb_iocb
*iocb
= ctx
->u
.iocb_cmd
;
1774 struct req_que
*req
= vha
->req
;
1776 flags
= iocb
->u
.tmf
.flags
;
1777 lun
= iocb
->u
.tmf
.lun
;
1779 tsk
->entry_type
= TSK_MGMT_IOCB_TYPE
;
1780 tsk
->entry_count
= 1;
1781 tsk
->handle
= MAKE_HANDLE(req
->id
, tsk
->handle
);
1782 tsk
->nport_handle
= cpu_to_le16(fcport
->loop_id
);
1783 tsk
->timeout
= cpu_to_le16(ha
->r_a_tov
/ 10 * 2);
1784 tsk
->control_flags
= cpu_to_le32(flags
);
1785 tsk
->port_id
[0] = fcport
->d_id
.b
.al_pa
;
1786 tsk
->port_id
[1] = fcport
->d_id
.b
.area
;
1787 tsk
->port_id
[2] = fcport
->d_id
.b
.domain
;
1788 tsk
->vp_index
= fcport
->vp_idx
;
1790 if (flags
== TCF_LUN_RESET
) {
1791 int_to_scsilun(lun
, &tsk
->lun
);
1792 host_to_fcp_swap((uint8_t *)&tsk
->lun
,
1798 qla24xx_marker_iocb(srb_t
*sp
, struct mrk_entry_24xx
*mrk
)
1802 struct fc_port
*fcport
= sp
->fcport
;
1803 scsi_qla_host_t
*vha
= fcport
->vha
;
1804 struct srb_ctx
*ctx
= sp
->ctx
;
1805 struct srb_iocb
*iocb
= ctx
->u
.iocb_cmd
;
1806 struct req_que
*req
= vha
->req
;
1808 lun
= iocb
->u
.marker
.lun
;
1809 modif
= iocb
->u
.marker
.modif
;
1810 mrk
->entry_type
= MARKER_TYPE
;
1811 mrk
->modifier
= modif
;
1812 if (modif
!= MK_SYNC_ALL
) {
1813 mrk
->nport_handle
= cpu_to_le16(fcport
->loop_id
);
1814 mrk
->lun
[1] = LSB(lun
);
1815 mrk
->lun
[2] = MSB(lun
);
1816 host_to_fcp_swap(mrk
->lun
, sizeof(mrk
->lun
));
1817 mrk
->vp_index
= vha
->vp_idx
;
1818 mrk
->handle
= MAKE_HANDLE(req
->id
, mrk
->handle
);
1823 qla24xx_els_iocb(srb_t
*sp
, struct els_entry_24xx
*els_iocb
)
1825 struct fc_bsg_job
*bsg_job
= ((struct srb_ctx
*)sp
->ctx
)->u
.bsg_job
;
1827 els_iocb
->entry_type
= ELS_IOCB_TYPE
;
1828 els_iocb
->entry_count
= 1;
1829 els_iocb
->sys_define
= 0;
1830 els_iocb
->entry_status
= 0;
1831 els_iocb
->handle
= sp
->handle
;
1832 els_iocb
->nport_handle
= cpu_to_le16(sp
->fcport
->loop_id
);
1833 els_iocb
->tx_dsd_count
= __constant_cpu_to_le16(bsg_job
->request_payload
.sg_cnt
);
1834 els_iocb
->vp_index
= sp
->fcport
->vp_idx
;
1835 els_iocb
->sof_type
= EST_SOFI3
;
1836 els_iocb
->rx_dsd_count
= __constant_cpu_to_le16(bsg_job
->reply_payload
.sg_cnt
);
1839 (((struct srb_ctx
*)sp
->ctx
)->type
== SRB_ELS_CMD_RPT
) ?
1840 bsg_job
->request
->rqst_data
.r_els
.els_code
:
1841 bsg_job
->request
->rqst_data
.h_els
.command_code
;
1842 els_iocb
->port_id
[0] = sp
->fcport
->d_id
.b
.al_pa
;
1843 els_iocb
->port_id
[1] = sp
->fcport
->d_id
.b
.area
;
1844 els_iocb
->port_id
[2] = sp
->fcport
->d_id
.b
.domain
;
1845 els_iocb
->control_flags
= 0;
1846 els_iocb
->rx_byte_count
=
1847 cpu_to_le32(bsg_job
->reply_payload
.payload_len
);
1848 els_iocb
->tx_byte_count
=
1849 cpu_to_le32(bsg_job
->request_payload
.payload_len
);
1851 els_iocb
->tx_address
[0] = cpu_to_le32(LSD(sg_dma_address
1852 (bsg_job
->request_payload
.sg_list
)));
1853 els_iocb
->tx_address
[1] = cpu_to_le32(MSD(sg_dma_address
1854 (bsg_job
->request_payload
.sg_list
)));
1855 els_iocb
->tx_len
= cpu_to_le32(sg_dma_len
1856 (bsg_job
->request_payload
.sg_list
));
1858 els_iocb
->rx_address
[0] = cpu_to_le32(LSD(sg_dma_address
1859 (bsg_job
->reply_payload
.sg_list
)));
1860 els_iocb
->rx_address
[1] = cpu_to_le32(MSD(sg_dma_address
1861 (bsg_job
->reply_payload
.sg_list
)));
1862 els_iocb
->rx_len
= cpu_to_le32(sg_dma_len
1863 (bsg_job
->reply_payload
.sg_list
));
1867 qla24xx_ct_iocb(srb_t
*sp
, struct ct_entry_24xx
*ct_iocb
)
1869 uint16_t avail_dsds
;
1871 struct scatterlist
*sg
;
1874 scsi_qla_host_t
*vha
= sp
->fcport
->vha
;
1875 struct fc_bsg_job
*bsg_job
= ((struct srb_ctx
*)sp
->ctx
)->u
.bsg_job
;
1876 int loop_iterartion
= 0;
1877 int cont_iocb_prsnt
= 0;
1878 int entry_count
= 1;
1880 ct_iocb
->entry_type
= CT_IOCB_TYPE
;
1881 ct_iocb
->entry_status
= 0;
1882 ct_iocb
->sys_define
= 0;
1883 ct_iocb
->handle
= sp
->handle
;
1885 ct_iocb
->nport_handle
= cpu_to_le16(sp
->fcport
->loop_id
);
1886 ct_iocb
->vp_index
= sp
->fcport
->vp_idx
;
1887 ct_iocb
->comp_status
= __constant_cpu_to_le16(0);
1889 ct_iocb
->cmd_dsd_count
=
1890 __constant_cpu_to_le16(bsg_job
->request_payload
.sg_cnt
);
1891 ct_iocb
->timeout
= 0;
1892 ct_iocb
->rsp_dsd_count
=
1893 __constant_cpu_to_le16(bsg_job
->reply_payload
.sg_cnt
);
1894 ct_iocb
->rsp_byte_count
=
1895 cpu_to_le32(bsg_job
->reply_payload
.payload_len
);
1896 ct_iocb
->cmd_byte_count
=
1897 cpu_to_le32(bsg_job
->request_payload
.payload_len
);
1898 ct_iocb
->dseg_0_address
[0] = cpu_to_le32(LSD(sg_dma_address
1899 (bsg_job
->request_payload
.sg_list
)));
1900 ct_iocb
->dseg_0_address
[1] = cpu_to_le32(MSD(sg_dma_address
1901 (bsg_job
->request_payload
.sg_list
)));
1902 ct_iocb
->dseg_0_len
= cpu_to_le32(sg_dma_len
1903 (bsg_job
->request_payload
.sg_list
));
1906 cur_dsd
= (uint32_t *)ct_iocb
->dseg_1_address
;
1908 tot_dsds
= bsg_job
->reply_payload
.sg_cnt
;
1910 for_each_sg(bsg_job
->reply_payload
.sg_list
, sg
, tot_dsds
, index
) {
1912 cont_a64_entry_t
*cont_pkt
;
1914 /* Allocate additional continuation packets? */
1915 if (avail_dsds
== 0) {
1917 * Five DSDs are available in the Cont.
1920 cont_pkt
= qla2x00_prep_cont_type1_iocb(vha
);
1921 cur_dsd
= (uint32_t *) cont_pkt
->dseg_0_address
;
1923 cont_iocb_prsnt
= 1;
1927 sle_dma
= sg_dma_address(sg
);
1928 *cur_dsd
++ = cpu_to_le32(LSD(sle_dma
));
1929 *cur_dsd
++ = cpu_to_le32(MSD(sle_dma
));
1930 *cur_dsd
++ = cpu_to_le32(sg_dma_len(sg
));
1934 ct_iocb
->entry_count
= entry_count
;
1938 qla2x00_start_sp(srb_t
*sp
)
1941 struct qla_hw_data
*ha
= sp
->fcport
->vha
->hw
;
1943 struct srb_ctx
*ctx
= sp
->ctx
;
1944 unsigned long flags
;
1946 rval
= QLA_FUNCTION_FAILED
;
1947 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1948 pkt
= qla2x00_alloc_iocbs(sp
);
1953 switch (ctx
->type
) {
1955 IS_FWI2_CAPABLE(ha
) ?
1956 qla24xx_login_iocb(sp
, pkt
) :
1957 qla2x00_login_iocb(sp
, pkt
);
1959 case SRB_LOGOUT_CMD
:
1960 IS_FWI2_CAPABLE(ha
) ?
1961 qla24xx_logout_iocb(sp
, pkt
) :
1962 qla2x00_logout_iocb(sp
, pkt
);
1964 case SRB_ELS_CMD_RPT
:
1965 case SRB_ELS_CMD_HST
:
1966 qla24xx_els_iocb(sp
, pkt
);
1969 qla24xx_ct_iocb(sp
, pkt
);
1972 IS_FWI2_CAPABLE(ha
) ?
1973 qla24xx_adisc_iocb(sp
, pkt
) :
1974 qla2x00_adisc_iocb(sp
, pkt
);
1977 qla24xx_tm_iocb(sp
, pkt
);
1979 case SRB_MARKER_CMD
:
1980 qla24xx_marker_iocb(sp
, pkt
);
1987 qla2x00_start_iocbs(sp
);
1989 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);