2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2014 QLogic Corporation
5 * See LICENSE.qla2xxx for copyright and licensing details.
8 #include "qla_target.h"
10 #include <linux/blkdev.h>
11 #include <linux/delay.h>
13 #include <scsi/scsi_tcq.h>
16 * qla2x00_get_cmd_direction() - Determine control_flag data direction.
19 * Returns the proper CF_* direction based on CDB.
21 static inline uint16_t
22 qla2x00_get_cmd_direction(srb_t *sp)
25 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
26 struct scsi_qla_host *vha = sp->vha;
30 /* Set transfer direction */
31 if (cmd->sc_data_direction == DMA_TO_DEVICE) {
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) {
37 vha->qla_stats.input_bytes += scsi_bufflen(cmd);
38 vha->qla_stats.input_requests++;
44 * qla2x00_calc_iocbs_32() - Determine number of Command Type 2 and
45 * Continuation Type 0 IOCBs to allocate.
47 * @dsds: number of data segment decriptors needed
49 * Returns the number of IOCB entries needed to store @dsds.
52 qla2x00_calc_iocbs_32(uint16_t dsds)
58 iocbs += (dsds - 3) / 7;
66 * qla2x00_calc_iocbs_64() - Determine number of Command Type 3 and
67 * Continuation Type 1 IOCBs to allocate.
69 * @dsds: number of data segment decriptors needed
71 * Returns the number of IOCB entries needed to store @dsds.
74 qla2x00_calc_iocbs_64(uint16_t dsds)
80 iocbs += (dsds - 2) / 5;
88 * qla2x00_prep_cont_type0_iocb() - Initialize a Continuation Type 0 IOCB.
91 * Returns a pointer to the Continuation Type 0 IOCB packet.
93 static inline cont_entry_t *
94 qla2x00_prep_cont_type0_iocb(struct scsi_qla_host *vha)
96 cont_entry_t *cont_pkt;
97 struct req_que *req = vha->req;
98 /* Adjust ring index. */
100 if (req->ring_index == req->length) {
102 req->ring_ptr = req->ring;
107 cont_pkt = (cont_entry_t *)req->ring_ptr;
109 /* Load packet defaults. */
110 put_unaligned_le32(CONTINUE_TYPE, &cont_pkt->entry_type);
116 * qla2x00_prep_cont_type1_iocb() - Initialize a Continuation Type 1 IOCB.
118 * @req: request queue
120 * Returns a pointer to the continuation type 1 IOCB packet.
122 static inline cont_a64_entry_t *
123 qla2x00_prep_cont_type1_iocb(scsi_qla_host_t *vha, struct req_que *req)
125 cont_a64_entry_t *cont_pkt;
127 /* Adjust ring index. */
129 if (req->ring_index == req->length) {
131 req->ring_ptr = req->ring;
136 cont_pkt = (cont_a64_entry_t *)req->ring_ptr;
138 /* Load packet defaults. */
139 put_unaligned_le32(IS_QLAFX00(vha->hw) ? CONTINUE_A64_TYPE_FX00 :
140 CONTINUE_A64_TYPE, &cont_pkt->entry_type);
146 qla24xx_configure_prot_mode(srb_t *sp, uint16_t *fw_prot_opts)
148 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
149 uint8_t guard = scsi_host_get_guard(cmd->device->host);
151 /* We always use DIFF Bundling for best performance */
154 /* Translate SCSI opcode to a protection opcode */
155 switch (scsi_get_prot_op(cmd)) {
156 case SCSI_PROT_READ_STRIP:
157 *fw_prot_opts |= PO_MODE_DIF_REMOVE;
159 case SCSI_PROT_WRITE_INSERT:
160 *fw_prot_opts |= PO_MODE_DIF_INSERT;
162 case SCSI_PROT_READ_INSERT:
163 *fw_prot_opts |= PO_MODE_DIF_INSERT;
165 case SCSI_PROT_WRITE_STRIP:
166 *fw_prot_opts |= PO_MODE_DIF_REMOVE;
168 case SCSI_PROT_READ_PASS:
169 case SCSI_PROT_WRITE_PASS:
170 if (guard & SHOST_DIX_GUARD_IP)
171 *fw_prot_opts |= PO_MODE_DIF_TCP_CKSUM;
173 *fw_prot_opts |= PO_MODE_DIF_PASS;
175 default: /* Normal Request */
176 *fw_prot_opts |= PO_MODE_DIF_PASS;
180 return scsi_prot_sg_count(cmd);
184 * qla2x00_build_scsi_iocbs_32() - Build IOCB command utilizing 32bit
185 * capable IOCB types.
187 * @sp: SRB command to process
188 * @cmd_pkt: Command type 2 IOCB
189 * @tot_dsds: Total number of segments to transfer
191 void qla2x00_build_scsi_iocbs_32(srb_t *sp, cmd_entry_t *cmd_pkt,
195 struct dsd32 *cur_dsd;
196 scsi_qla_host_t *vha;
197 struct scsi_cmnd *cmd;
198 struct scatterlist *sg;
201 cmd = GET_CMD_SP(sp);
203 /* Update entry type to indicate Command Type 2 IOCB */
204 put_unaligned_le32(COMMAND_TYPE, &cmd_pkt->entry_type);
206 /* No data transfer */
207 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
208 cmd_pkt->byte_count = cpu_to_le32(0);
213 cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp));
215 /* Three DSDs are available in the Command Type 2 IOCB */
216 avail_dsds = ARRAY_SIZE(cmd_pkt->dsd32);
217 cur_dsd = cmd_pkt->dsd32;
219 /* Load data segments */
220 scsi_for_each_sg(cmd, sg, tot_dsds, i) {
221 cont_entry_t *cont_pkt;
223 /* Allocate additional continuation packets? */
224 if (avail_dsds == 0) {
226 * Seven DSDs are available in the Continuation
229 cont_pkt = qla2x00_prep_cont_type0_iocb(vha);
230 cur_dsd = cont_pkt->dsd;
231 avail_dsds = ARRAY_SIZE(cont_pkt->dsd);
234 append_dsd32(&cur_dsd, sg);
240 * qla2x00_build_scsi_iocbs_64() - Build IOCB command utilizing 64bit
241 * capable IOCB types.
243 * @sp: SRB command to process
244 * @cmd_pkt: Command type 3 IOCB
245 * @tot_dsds: Total number of segments to transfer
247 void qla2x00_build_scsi_iocbs_64(srb_t *sp, cmd_entry_t *cmd_pkt,
251 struct dsd64 *cur_dsd;
252 scsi_qla_host_t *vha;
253 struct scsi_cmnd *cmd;
254 struct scatterlist *sg;
257 cmd = GET_CMD_SP(sp);
259 /* Update entry type to indicate Command Type 3 IOCB */
260 put_unaligned_le32(COMMAND_A64_TYPE, &cmd_pkt->entry_type);
262 /* No data transfer */
263 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
264 cmd_pkt->byte_count = cpu_to_le32(0);
269 cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp));
271 /* Two DSDs are available in the Command Type 3 IOCB */
272 avail_dsds = ARRAY_SIZE(cmd_pkt->dsd64);
273 cur_dsd = cmd_pkt->dsd64;
275 /* Load data segments */
276 scsi_for_each_sg(cmd, sg, tot_dsds, i) {
277 cont_a64_entry_t *cont_pkt;
279 /* Allocate additional continuation packets? */
280 if (avail_dsds == 0) {
282 * Five DSDs are available in the Continuation
285 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req);
286 cur_dsd = cont_pkt->dsd;
287 avail_dsds = ARRAY_SIZE(cont_pkt->dsd);
290 append_dsd64(&cur_dsd, sg);
296 * qla2x00_start_scsi() - Send a SCSI command to the ISP
297 * @sp: command to send to the ISP
299 * Returns non-zero if a failure occurred, else zero.
302 qla2x00_start_scsi(srb_t *sp)
306 scsi_qla_host_t *vha;
307 struct scsi_cmnd *cmd;
311 cmd_entry_t *cmd_pkt;
315 struct device_reg_2xxx __iomem *reg;
316 struct qla_hw_data *ha;
320 /* Setup device pointers. */
323 reg = &ha->iobase->isp;
324 cmd = GET_CMD_SP(sp);
325 req = ha->req_q_map[0];
326 rsp = ha->rsp_q_map[0];
327 /* So we know we haven't pci_map'ed anything yet */
330 /* Send marker if required */
331 if (vha->marker_needed != 0) {
332 if (qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL) !=
334 return (QLA_FUNCTION_FAILED);
336 vha->marker_needed = 0;
339 /* Acquire ring specific lock */
340 spin_lock_irqsave(&ha->hardware_lock, flags);
342 /* Check for room in outstanding command list. */
343 handle = req->current_outstanding_cmd;
344 for (index = 1; index < req->num_outstanding_cmds; index++) {
346 if (handle == req->num_outstanding_cmds)
348 if (!req->outstanding_cmds[handle])
351 if (index == req->num_outstanding_cmds)
354 /* Map the sg table so we have an accurate count of sg entries needed */
355 if (scsi_sg_count(cmd)) {
356 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
357 scsi_sg_count(cmd), cmd->sc_data_direction);
365 /* Calculate the number of request entries needed. */
366 req_cnt = ha->isp_ops->calc_req_entries(tot_dsds);
367 if (req->cnt < (req_cnt + 2)) {
368 cnt = RD_REG_WORD_RELAXED(ISP_REQ_Q_OUT(ha, reg));
369 if (req->ring_index < cnt)
370 req->cnt = cnt - req->ring_index;
372 req->cnt = req->length -
373 (req->ring_index - cnt);
374 /* If still no head room then bail out */
375 if (req->cnt < (req_cnt + 2))
379 /* Build command packet */
380 req->current_outstanding_cmd = handle;
381 req->outstanding_cmds[handle] = sp;
383 cmd->host_scribble = (unsigned char *)(unsigned long)handle;
386 cmd_pkt = (cmd_entry_t *)req->ring_ptr;
387 cmd_pkt->handle = handle;
388 /* Zero out remaining portion of packet. */
389 clr_ptr = (uint32_t *)cmd_pkt + 2;
390 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
391 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
393 /* Set target ID and LUN number*/
394 SET_TARGET_ID(ha, cmd_pkt->target, sp->fcport->loop_id);
395 cmd_pkt->lun = cpu_to_le16(cmd->device->lun);
396 cmd_pkt->control_flags = cpu_to_le16(CF_SIMPLE_TAG);
398 /* Load SCSI command packet. */
399 memcpy(cmd_pkt->scsi_cdb, cmd->cmnd, cmd->cmd_len);
400 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
402 /* Build IOCB segments */
403 ha->isp_ops->build_iocbs(sp, cmd_pkt, tot_dsds);
405 /* Set total data segment count. */
406 cmd_pkt->entry_count = (uint8_t)req_cnt;
409 /* Adjust ring index. */
411 if (req->ring_index == req->length) {
413 req->ring_ptr = req->ring;
417 sp->flags |= SRB_DMA_VALID;
419 /* Set chip new ring index. */
420 WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), req->ring_index);
421 RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, reg)); /* PCI Posting. */
423 /* Manage unprocessed RIO/ZIO commands in response queue. */
424 if (vha->flags.process_response_queue &&
425 rsp->ring_ptr->signature != RESPONSE_PROCESSED)
426 qla2x00_process_response_queue(rsp);
428 spin_unlock_irqrestore(&ha->hardware_lock, flags);
429 return (QLA_SUCCESS);
435 spin_unlock_irqrestore(&ha->hardware_lock, flags);
437 return (QLA_FUNCTION_FAILED);
441 * qla2x00_start_iocbs() - Execute the IOCB command
443 * @req: request queue
446 qla2x00_start_iocbs(struct scsi_qla_host *vha, struct req_que *req)
448 struct qla_hw_data *ha = vha->hw;
449 device_reg_t *reg = ISP_QUE_REG(ha, req->id);
451 if (IS_P3P_TYPE(ha)) {
452 qla82xx_start_iocbs(vha);
454 /* Adjust ring index. */
456 if (req->ring_index == req->length) {
458 req->ring_ptr = req->ring;
462 /* Set chip new ring index. */
463 if (ha->mqenable || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
464 WRT_REG_DWORD(req->req_q_in, req->ring_index);
465 } else if (IS_QLA83XX(ha)) {
466 WRT_REG_DWORD(req->req_q_in, req->ring_index);
467 RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr);
468 } else if (IS_QLAFX00(ha)) {
469 WRT_REG_DWORD(®->ispfx00.req_q_in, req->ring_index);
470 RD_REG_DWORD_RELAXED(®->ispfx00.req_q_in);
471 QLAFX00_SET_HST_INTR(ha, ha->rqstq_intr_code);
472 } else if (IS_FWI2_CAPABLE(ha)) {
473 WRT_REG_DWORD(®->isp24.req_q_in, req->ring_index);
474 RD_REG_DWORD_RELAXED(®->isp24.req_q_in);
476 WRT_REG_WORD(ISP_REQ_Q_IN(ha, ®->isp),
478 RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, ®->isp));
484 * qla2x00_marker() - Send a marker IOCB to the firmware.
486 * @qpair: queue pair pointer
489 * @type: marker modifier
491 * Can be called from both normal and interrupt context.
493 * Returns non-zero if a failure occurred, else zero.
496 __qla2x00_marker(struct scsi_qla_host *vha, struct qla_qpair *qpair,
497 uint16_t loop_id, uint64_t lun, uint8_t type)
500 struct mrk_entry_24xx *mrk24 = NULL;
501 struct req_que *req = qpair->req;
502 struct qla_hw_data *ha = vha->hw;
503 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
505 mrk = (mrk_entry_t *)__qla2x00_alloc_iocbs(qpair, NULL);
507 ql_log(ql_log_warn, base_vha, 0x3026,
508 "Failed to allocate Marker IOCB.\n");
510 return (QLA_FUNCTION_FAILED);
513 mrk->entry_type = MARKER_TYPE;
514 mrk->modifier = type;
515 if (type != MK_SYNC_ALL) {
516 if (IS_FWI2_CAPABLE(ha)) {
517 mrk24 = (struct mrk_entry_24xx *) mrk;
518 mrk24->nport_handle = cpu_to_le16(loop_id);
519 int_to_scsilun(lun, (struct scsi_lun *)&mrk24->lun);
520 host_to_fcp_swap(mrk24->lun, sizeof(mrk24->lun));
521 mrk24->vp_index = vha->vp_idx;
522 mrk24->handle = MAKE_HANDLE(req->id, mrk24->handle);
524 SET_TARGET_ID(ha, mrk->target, loop_id);
525 mrk->lun = cpu_to_le16((uint16_t)lun);
530 qla2x00_start_iocbs(vha, req);
532 return (QLA_SUCCESS);
536 qla2x00_marker(struct scsi_qla_host *vha, struct qla_qpair *qpair,
537 uint16_t loop_id, uint64_t lun, uint8_t type)
540 unsigned long flags = 0;
542 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
543 ret = __qla2x00_marker(vha, qpair, loop_id, lun, type);
544 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
550 * qla2x00_issue_marker
553 * Caller CAN have hardware lock held as specified by ha_locked parameter.
554 * Might release it, then reaquire.
556 int qla2x00_issue_marker(scsi_qla_host_t *vha, int ha_locked)
559 if (__qla2x00_marker(vha, vha->hw->base_qpair, 0, 0,
560 MK_SYNC_ALL) != QLA_SUCCESS)
561 return QLA_FUNCTION_FAILED;
563 if (qla2x00_marker(vha, vha->hw->base_qpair, 0, 0,
564 MK_SYNC_ALL) != QLA_SUCCESS)
565 return QLA_FUNCTION_FAILED;
567 vha->marker_needed = 0;
573 qla24xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt,
576 struct dsd64 *cur_dsd = NULL, *next_dsd;
577 scsi_qla_host_t *vha;
578 struct qla_hw_data *ha;
579 struct scsi_cmnd *cmd;
580 struct scatterlist *cur_seg;
582 uint8_t first_iocb = 1;
583 uint32_t dsd_list_len;
584 struct dsd_dma *dsd_ptr;
587 cmd = GET_CMD_SP(sp);
589 /* Update entry type to indicate Command Type 3 IOCB */
590 put_unaligned_le32(COMMAND_TYPE_6, &cmd_pkt->entry_type);
592 /* No data transfer */
593 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
594 cmd_pkt->byte_count = cpu_to_le32(0);
601 /* Set transfer direction */
602 if (cmd->sc_data_direction == DMA_TO_DEVICE) {
603 cmd_pkt->control_flags = cpu_to_le16(CF_WRITE_DATA);
604 vha->qla_stats.output_bytes += scsi_bufflen(cmd);
605 vha->qla_stats.output_requests++;
606 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
607 cmd_pkt->control_flags = cpu_to_le16(CF_READ_DATA);
608 vha->qla_stats.input_bytes += scsi_bufflen(cmd);
609 vha->qla_stats.input_requests++;
612 cur_seg = scsi_sglist(cmd);
613 ctx = GET_CMD_CTX_SP(sp);
616 avail_dsds = (tot_dsds > QLA_DSDS_PER_IOCB) ?
617 QLA_DSDS_PER_IOCB : tot_dsds;
618 tot_dsds -= avail_dsds;
619 dsd_list_len = (avail_dsds + 1) * QLA_DSD_SIZE;
621 dsd_ptr = list_first_entry(&ha->gbl_dsd_list,
622 struct dsd_dma, list);
623 next_dsd = dsd_ptr->dsd_addr;
624 list_del(&dsd_ptr->list);
626 list_add_tail(&dsd_ptr->list, &ctx->dsd_list);
632 put_unaligned_le64(dsd_ptr->dsd_list_dma,
633 &cmd_pkt->fcp_dsd.address);
634 cmd_pkt->fcp_dsd.length = cpu_to_le32(dsd_list_len);
636 put_unaligned_le64(dsd_ptr->dsd_list_dma,
638 cur_dsd->length = cpu_to_le32(dsd_list_len);
643 append_dsd64(&cur_dsd, cur_seg);
644 cur_seg = sg_next(cur_seg);
649 /* Null termination */
650 cur_dsd->address = 0;
653 cmd_pkt->control_flags |= CF_DATA_SEG_DESCR_ENABLE;
658 * qla24xx_calc_dsd_lists() - Determine number of DSD list required
659 * for Command Type 6.
661 * @dsds: number of data segment decriptors needed
663 * Returns the number of dsd list needed to store @dsds.
665 static inline uint16_t
666 qla24xx_calc_dsd_lists(uint16_t dsds)
668 uint16_t dsd_lists = 0;
670 dsd_lists = (dsds/QLA_DSDS_PER_IOCB);
671 if (dsds % QLA_DSDS_PER_IOCB)
678 * qla24xx_build_scsi_iocbs() - Build IOCB command utilizing Command Type 7
681 * @sp: SRB command to process
682 * @cmd_pkt: Command type 3 IOCB
683 * @tot_dsds: Total number of segments to transfer
684 * @req: pointer to request queue
687 qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt,
688 uint16_t tot_dsds, struct req_que *req)
691 struct dsd64 *cur_dsd;
692 scsi_qla_host_t *vha;
693 struct scsi_cmnd *cmd;
694 struct scatterlist *sg;
697 cmd = GET_CMD_SP(sp);
699 /* Update entry type to indicate Command Type 3 IOCB */
700 put_unaligned_le32(COMMAND_TYPE_7, &cmd_pkt->entry_type);
702 /* No data transfer */
703 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
704 cmd_pkt->byte_count = cpu_to_le32(0);
710 /* Set transfer direction */
711 if (cmd->sc_data_direction == DMA_TO_DEVICE) {
712 cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_WRITE_DATA);
713 vha->qla_stats.output_bytes += scsi_bufflen(cmd);
714 vha->qla_stats.output_requests++;
715 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
716 cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_READ_DATA);
717 vha->qla_stats.input_bytes += scsi_bufflen(cmd);
718 vha->qla_stats.input_requests++;
721 /* One DSD is available in the Command Type 3 IOCB */
723 cur_dsd = &cmd_pkt->dsd;
725 /* Load data segments */
727 scsi_for_each_sg(cmd, sg, tot_dsds, i) {
728 cont_a64_entry_t *cont_pkt;
730 /* Allocate additional continuation packets? */
731 if (avail_dsds == 0) {
733 * Five DSDs are available in the Continuation
736 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, req);
737 cur_dsd = cont_pkt->dsd;
738 avail_dsds = ARRAY_SIZE(cont_pkt->dsd);
741 append_dsd64(&cur_dsd, sg);
746 struct fw_dif_context {
749 uint8_t ref_tag_mask[4]; /* Validation/Replacement Mask*/
750 uint8_t app_tag_mask[2]; /* Validation/Replacement Mask*/
754 * qla24xx_set_t10dif_tags_from_cmd - Extract Ref and App tags from SCSI command
758 qla24xx_set_t10dif_tags(srb_t *sp, struct fw_dif_context *pkt,
759 unsigned int protcnt)
761 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
763 switch (scsi_get_prot_type(cmd)) {
764 case SCSI_PROT_DIF_TYPE0:
766 * No check for ql2xenablehba_err_chk, as it would be an
767 * I/O error if hba tag generation is not done.
769 pkt->ref_tag = cpu_to_le32((uint32_t)
770 (0xffffffff & scsi_get_lba(cmd)));
772 if (!qla2x00_hba_err_chk_enabled(sp))
775 pkt->ref_tag_mask[0] = 0xff;
776 pkt->ref_tag_mask[1] = 0xff;
777 pkt->ref_tag_mask[2] = 0xff;
778 pkt->ref_tag_mask[3] = 0xff;
782 * For TYPE 2 protection: 16 bit GUARD + 32 bit REF tag has to
783 * match LBA in CDB + N
785 case SCSI_PROT_DIF_TYPE2:
786 pkt->app_tag = cpu_to_le16(0);
787 pkt->app_tag_mask[0] = 0x0;
788 pkt->app_tag_mask[1] = 0x0;
790 pkt->ref_tag = cpu_to_le32((uint32_t)
791 (0xffffffff & scsi_get_lba(cmd)));
793 if (!qla2x00_hba_err_chk_enabled(sp))
796 /* enable ALL bytes of the ref tag */
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;
803 /* For Type 3 protection: 16 bit GUARD only */
804 case SCSI_PROT_DIF_TYPE3:
805 pkt->ref_tag_mask[0] = pkt->ref_tag_mask[1] =
806 pkt->ref_tag_mask[2] = pkt->ref_tag_mask[3] =
811 * For TYpe 1 protection: 16 bit GUARD tag, 32 bit REF tag, and
814 case SCSI_PROT_DIF_TYPE1:
815 pkt->ref_tag = cpu_to_le32((uint32_t)
816 (0xffffffff & scsi_get_lba(cmd)));
817 pkt->app_tag = cpu_to_le16(0);
818 pkt->app_tag_mask[0] = 0x0;
819 pkt->app_tag_mask[1] = 0x0;
821 if (!qla2x00_hba_err_chk_enabled(sp))
824 /* enable ALL bytes of the ref tag */
825 pkt->ref_tag_mask[0] = 0xff;
826 pkt->ref_tag_mask[1] = 0xff;
827 pkt->ref_tag_mask[2] = 0xff;
828 pkt->ref_tag_mask[3] = 0xff;
834 qla24xx_get_one_block_sg(uint32_t blk_sz, struct qla2_sgx *sgx,
837 struct scatterlist *sg;
838 uint32_t cumulative_partial, sg_len;
839 dma_addr_t sg_dma_addr;
841 if (sgx->num_bytes == sgx->tot_bytes)
845 cumulative_partial = sgx->tot_partial;
847 sg_dma_addr = sg_dma_address(sg);
848 sg_len = sg_dma_len(sg);
850 sgx->dma_addr = sg_dma_addr + sgx->bytes_consumed;
852 if ((cumulative_partial + (sg_len - sgx->bytes_consumed)) >= blk_sz) {
853 sgx->dma_len = (blk_sz - cumulative_partial);
854 sgx->tot_partial = 0;
855 sgx->num_bytes += blk_sz;
858 sgx->dma_len = sg_len - sgx->bytes_consumed;
859 sgx->tot_partial += sgx->dma_len;
863 sgx->bytes_consumed += sgx->dma_len;
865 if (sg_len == sgx->bytes_consumed) {
869 sgx->bytes_consumed = 0;
876 qla24xx_walk_and_build_sglist_no_difb(struct qla_hw_data *ha, srb_t *sp,
877 struct dsd64 *dsd, uint16_t tot_dsds, struct qla_tc_param *tc)
880 uint8_t avail_dsds = 0;
881 uint32_t dsd_list_len;
882 struct dsd_dma *dsd_ptr;
883 struct scatterlist *sg_prot;
884 struct dsd64 *cur_dsd = dsd;
885 uint16_t used_dsds = tot_dsds;
886 uint32_t prot_int; /* protection interval */
890 uint32_t sle_dma_len, tot_prot_dma_len = 0;
891 struct scsi_cmnd *cmd;
893 memset(&sgx, 0, sizeof(struct qla2_sgx));
895 cmd = GET_CMD_SP(sp);
896 prot_int = cmd->device->sector_size;
898 sgx.tot_bytes = scsi_bufflen(cmd);
899 sgx.cur_sg = scsi_sglist(cmd);
902 sg_prot = scsi_prot_sglist(cmd);
904 prot_int = tc->blk_sz;
905 sgx.tot_bytes = tc->bufflen;
907 sg_prot = tc->prot_sg;
913 while (qla24xx_get_one_block_sg(prot_int, &sgx, &partial)) {
915 sle_dma = sgx.dma_addr;
916 sle_dma_len = sgx.dma_len;
918 /* Allocate additional continuation packets? */
919 if (avail_dsds == 0) {
920 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ?
921 QLA_DSDS_PER_IOCB : used_dsds;
922 dsd_list_len = (avail_dsds + 1) * 12;
923 used_dsds -= avail_dsds;
925 /* allocate tracking DS */
926 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
930 /* allocate new list */
931 dsd_ptr->dsd_addr = next_dsd =
932 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC,
933 &dsd_ptr->dsd_list_dma);
937 * Need to cleanup only this dsd_ptr, rest
938 * will be done by sp_free_dma()
945 list_add_tail(&dsd_ptr->list,
946 &((struct crc_context *)
947 sp->u.scmd.ctx)->dsd_list);
949 sp->flags |= SRB_CRC_CTX_DSD_VALID;
951 list_add_tail(&dsd_ptr->list,
952 &(tc->ctx->dsd_list));
953 *tc->ctx_dsd_alloced = 1;
957 /* add new list to cmd iocb or last list */
958 put_unaligned_le64(dsd_ptr->dsd_list_dma,
960 cur_dsd->length = cpu_to_le32(dsd_list_len);
963 put_unaligned_le64(sle_dma, &cur_dsd->address);
964 cur_dsd->length = cpu_to_le32(sle_dma_len);
969 /* Got a full protection interval */
970 sle_dma = sg_dma_address(sg_prot) + tot_prot_dma_len;
973 tot_prot_dma_len += sle_dma_len;
974 if (tot_prot_dma_len == sg_dma_len(sg_prot)) {
975 tot_prot_dma_len = 0;
976 sg_prot = sg_next(sg_prot);
979 partial = 1; /* So as to not re-enter this block */
983 /* Null termination */
984 cur_dsd->address = 0;
991 qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp,
992 struct dsd64 *dsd, uint16_t tot_dsds, struct qla_tc_param *tc)
995 uint8_t avail_dsds = 0;
996 uint32_t dsd_list_len;
997 struct dsd_dma *dsd_ptr;
998 struct scatterlist *sg, *sgl;
999 struct dsd64 *cur_dsd = dsd;
1001 uint16_t used_dsds = tot_dsds;
1002 struct scsi_cmnd *cmd;
1005 cmd = GET_CMD_SP(sp);
1006 sgl = scsi_sglist(cmd);
1015 for_each_sg(sgl, sg, tot_dsds, i) {
1016 /* Allocate additional continuation packets? */
1017 if (avail_dsds == 0) {
1018 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ?
1019 QLA_DSDS_PER_IOCB : used_dsds;
1020 dsd_list_len = (avail_dsds + 1) * 12;
1021 used_dsds -= avail_dsds;
1023 /* allocate tracking DS */
1024 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
1028 /* allocate new list */
1029 dsd_ptr->dsd_addr = next_dsd =
1030 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC,
1031 &dsd_ptr->dsd_list_dma);
1035 * Need to cleanup only this dsd_ptr, rest
1036 * will be done by sp_free_dma()
1043 list_add_tail(&dsd_ptr->list,
1044 &((struct crc_context *)
1045 sp->u.scmd.ctx)->dsd_list);
1047 sp->flags |= SRB_CRC_CTX_DSD_VALID;
1049 list_add_tail(&dsd_ptr->list,
1050 &(tc->ctx->dsd_list));
1051 *tc->ctx_dsd_alloced = 1;
1054 /* add new list to cmd iocb or last list */
1055 put_unaligned_le64(dsd_ptr->dsd_list_dma,
1057 cur_dsd->length = cpu_to_le32(dsd_list_len);
1060 append_dsd64(&cur_dsd, sg);
1064 /* Null termination */
1065 cur_dsd->address = 0;
1066 cur_dsd->length = 0;
1072 qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *ha, srb_t *sp,
1073 struct dsd64 *cur_dsd, uint16_t tot_dsds, struct qla_tgt_cmd *tc)
1075 struct dsd_dma *dsd_ptr = NULL, *dif_dsd, *nxt_dsd;
1076 struct scatterlist *sg, *sgl;
1077 struct crc_context *difctx = NULL;
1078 struct scsi_qla_host *vha;
1080 uint avail_dsds = 0;
1081 uint used_dsds = tot_dsds;
1082 bool dif_local_dma_alloc = false;
1083 bool direction_to_device = false;
1087 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1089 sgl = scsi_prot_sglist(cmd);
1091 difctx = sp->u.scmd.ctx;
1092 direction_to_device = cmd->sc_data_direction == DMA_TO_DEVICE;
1093 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe021,
1094 "%s: scsi_cmnd: %p, crc_ctx: %p, sp: %p\n",
1095 __func__, cmd, difctx, sp);
1100 direction_to_device = tc->dma_data_direction == DMA_TO_DEVICE;
1106 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe021,
1107 "%s: enter (write=%u)\n", __func__, direction_to_device);
1109 /* if initiator doing write or target doing read */
1110 if (direction_to_device) {
1111 for_each_sg(sgl, sg, tot_dsds, i) {
1112 u64 sle_phys = sg_phys(sg);
1114 /* If SGE addr + len flips bits in upper 32-bits */
1115 if (MSD(sle_phys + sg->length) ^ MSD(sle_phys)) {
1116 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe022,
1117 "%s: page boundary crossing (phys=%llx len=%x)\n",
1118 __func__, sle_phys, sg->length);
1121 ha->dif_bundle_crossed_pages++;
1122 dif_local_dma_alloc = true;
1124 ql_dbg(ql_dbg_tgt + ql_dbg_verbose,
1126 "%s: difctx pointer is NULL\n",
1132 ha->dif_bundle_writes++;
1134 ha->dif_bundle_reads++;
1137 if (ql2xdifbundlinginternalbuffers)
1138 dif_local_dma_alloc = direction_to_device;
1140 if (dif_local_dma_alloc) {
1141 u32 track_difbundl_buf = 0;
1142 u32 ldma_sg_len = 0;
1145 difctx->no_dif_bundl = 0;
1146 difctx->dif_bundl_len = 0;
1148 /* Track DSD buffers */
1149 INIT_LIST_HEAD(&difctx->ldif_dsd_list);
1150 /* Track local DMA buffers */
1151 INIT_LIST_HEAD(&difctx->ldif_dma_hndl_list);
1153 for_each_sg(sgl, sg, tot_dsds, i) {
1154 u32 sglen = sg_dma_len(sg);
1156 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe023,
1157 "%s: sg[%x] (phys=%llx sglen=%x) ldma_sg_len: %x dif_bundl_len: %x ldma_needed: %x\n",
1158 __func__, i, (u64)sg_phys(sg), sglen, ldma_sg_len,
1159 difctx->dif_bundl_len, ldma_needed);
1166 * Allocate list item to store
1169 dsd_ptr = kzalloc(sizeof(*dsd_ptr),
1172 ql_dbg(ql_dbg_tgt, vha, 0xe024,
1173 "%s: failed alloc dsd_ptr\n",
1177 ha->dif_bundle_kallocs++;
1179 /* allocate dma buffer */
1180 dsd_ptr->dsd_addr = dma_pool_alloc
1181 (ha->dif_bundl_pool, GFP_ATOMIC,
1182 &dsd_ptr->dsd_list_dma);
1183 if (!dsd_ptr->dsd_addr) {
1184 ql_dbg(ql_dbg_tgt, vha, 0xe024,
1185 "%s: failed alloc ->dsd_ptr\n",
1188 * need to cleanup only this
1189 * dsd_ptr rest will be done
1193 ha->dif_bundle_kallocs--;
1196 ha->dif_bundle_dma_allocs++;
1198 difctx->no_dif_bundl++;
1199 list_add_tail(&dsd_ptr->list,
1200 &difctx->ldif_dma_hndl_list);
1203 /* xfrlen is min of dma pool size and sglen */
1205 (DIF_BUNDLING_DMA_POOL_SIZE - ldma_sg_len)) ?
1206 DIF_BUNDLING_DMA_POOL_SIZE - ldma_sg_len :
1209 /* replace with local allocated dma buffer */
1210 sg_pcopy_to_buffer(sgl, sg_nents(sgl),
1211 dsd_ptr->dsd_addr + ldma_sg_len, xfrlen,
1212 difctx->dif_bundl_len);
1213 difctx->dif_bundl_len += xfrlen;
1215 ldma_sg_len += xfrlen;
1216 if (ldma_sg_len == DIF_BUNDLING_DMA_POOL_SIZE ||
1224 track_difbundl_buf = used_dsds = difctx->no_dif_bundl;
1225 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe025,
1226 "dif_bundl_len=%x, no_dif_bundl=%x track_difbundl_buf: %x\n",
1227 difctx->dif_bundl_len, difctx->no_dif_bundl,
1228 track_difbundl_buf);
1231 sp->flags |= SRB_DIF_BUNDL_DMA_VALID;
1233 tc->prot_flags = DIF_BUNDL_DMA_VALID;
1235 list_for_each_entry_safe(dif_dsd, nxt_dsd,
1236 &difctx->ldif_dma_hndl_list, list) {
1237 u32 sglen = (difctx->dif_bundl_len >
1238 DIF_BUNDLING_DMA_POOL_SIZE) ?
1239 DIF_BUNDLING_DMA_POOL_SIZE : difctx->dif_bundl_len;
1241 BUG_ON(track_difbundl_buf == 0);
1243 /* Allocate additional continuation packets? */
1244 if (avail_dsds == 0) {
1245 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha,
1247 "%s: adding continuation iocb's\n",
1249 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ?
1250 QLA_DSDS_PER_IOCB : used_dsds;
1251 dsd_list_len = (avail_dsds + 1) * 12;
1252 used_dsds -= avail_dsds;
1254 /* allocate tracking DS */
1255 dsd_ptr = kzalloc(sizeof(*dsd_ptr), GFP_ATOMIC);
1257 ql_dbg(ql_dbg_tgt, vha, 0xe026,
1258 "%s: failed alloc dsd_ptr\n",
1262 ha->dif_bundle_kallocs++;
1264 difctx->no_ldif_dsd++;
1265 /* allocate new list */
1267 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC,
1268 &dsd_ptr->dsd_list_dma);
1269 if (!dsd_ptr->dsd_addr) {
1270 ql_dbg(ql_dbg_tgt, vha, 0xe026,
1271 "%s: failed alloc ->dsd_addr\n",
1274 * need to cleanup only this dsd_ptr
1275 * rest will be done by sp_free_dma()
1278 ha->dif_bundle_kallocs--;
1281 ha->dif_bundle_dma_allocs++;
1284 list_add_tail(&dsd_ptr->list,
1285 &difctx->ldif_dsd_list);
1286 sp->flags |= SRB_CRC_CTX_DSD_VALID;
1288 list_add_tail(&dsd_ptr->list,
1289 &difctx->ldif_dsd_list);
1290 tc->ctx_dsd_alloced = 1;
1293 /* add new list to cmd iocb or last list */
1294 put_unaligned_le64(dsd_ptr->dsd_list_dma,
1296 cur_dsd->length = cpu_to_le32(dsd_list_len);
1297 cur_dsd = dsd_ptr->dsd_addr;
1299 put_unaligned_le64(dif_dsd->dsd_list_dma,
1301 cur_dsd->length = cpu_to_le32(sglen);
1304 difctx->dif_bundl_len -= sglen;
1305 track_difbundl_buf--;
1308 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe026,
1309 "%s: no_ldif_dsd:%x, no_dif_bundl:%x\n", __func__,
1310 difctx->no_ldif_dsd, difctx->no_dif_bundl);
1312 for_each_sg(sgl, sg, tot_dsds, i) {
1313 /* Allocate additional continuation packets? */
1314 if (avail_dsds == 0) {
1315 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ?
1316 QLA_DSDS_PER_IOCB : used_dsds;
1317 dsd_list_len = (avail_dsds + 1) * 12;
1318 used_dsds -= avail_dsds;
1320 /* allocate tracking DS */
1321 dsd_ptr = kzalloc(sizeof(*dsd_ptr), GFP_ATOMIC);
1323 ql_dbg(ql_dbg_tgt + ql_dbg_verbose,
1325 "%s: failed alloc dsd_dma...\n",
1330 /* allocate new list */
1332 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC,
1333 &dsd_ptr->dsd_list_dma);
1334 if (!dsd_ptr->dsd_addr) {
1335 /* need to cleanup only this dsd_ptr */
1336 /* rest will be done by sp_free_dma() */
1342 list_add_tail(&dsd_ptr->list,
1344 sp->flags |= SRB_CRC_CTX_DSD_VALID;
1346 list_add_tail(&dsd_ptr->list,
1348 tc->ctx_dsd_alloced = 1;
1351 /* add new list to cmd iocb or last list */
1352 put_unaligned_le64(dsd_ptr->dsd_list_dma,
1354 cur_dsd->length = cpu_to_le32(dsd_list_len);
1355 cur_dsd = dsd_ptr->dsd_addr;
1357 append_dsd64(&cur_dsd, sg);
1361 /* Null termination */
1362 cur_dsd->address = 0;
1363 cur_dsd->length = 0;
1368 * qla24xx_build_scsi_crc_2_iocbs() - Build IOCB command utilizing Command
1369 * Type 6 IOCB types.
1371 * @sp: SRB command to process
1372 * @cmd_pkt: Command type 3 IOCB
1373 * @tot_dsds: Total number of segments to transfer
1374 * @tot_prot_dsds: Total number of segments with protection information
1375 * @fw_prot_opts: Protection options to be passed to firmware
1378 qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt,
1379 uint16_t tot_dsds, uint16_t tot_prot_dsds, uint16_t fw_prot_opts)
1381 struct dsd64 *cur_dsd;
1383 scsi_qla_host_t *vha;
1384 struct scsi_cmnd *cmd;
1385 uint32_t total_bytes = 0;
1386 uint32_t data_bytes;
1388 uint8_t bundling = 1;
1390 struct crc_context *crc_ctx_pkt = NULL;
1391 struct qla_hw_data *ha;
1392 uint8_t additional_fcpcdb_len;
1393 uint16_t fcp_cmnd_len;
1394 struct fcp_cmnd *fcp_cmnd;
1395 dma_addr_t crc_ctx_dma;
1397 cmd = GET_CMD_SP(sp);
1399 /* Update entry type to indicate Command Type CRC_2 IOCB */
1400 put_unaligned_le32(COMMAND_TYPE_CRC_2, &cmd_pkt->entry_type);
1405 /* No data transfer */
1406 data_bytes = scsi_bufflen(cmd);
1407 if (!data_bytes || cmd->sc_data_direction == DMA_NONE) {
1408 cmd_pkt->byte_count = cpu_to_le32(0);
1412 cmd_pkt->vp_index = sp->vha->vp_idx;
1414 /* Set transfer direction */
1415 if (cmd->sc_data_direction == DMA_TO_DEVICE) {
1416 cmd_pkt->control_flags =
1417 cpu_to_le16(CF_WRITE_DATA);
1418 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
1419 cmd_pkt->control_flags =
1420 cpu_to_le16(CF_READ_DATA);
1423 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
1424 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP) ||
1425 (scsi_get_prot_op(cmd) == SCSI_PROT_READ_STRIP) ||
1426 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_INSERT))
1429 /* Allocate CRC context from global pool */
1430 crc_ctx_pkt = sp->u.scmd.ctx =
1431 dma_pool_zalloc(ha->dl_dma_pool, GFP_ATOMIC, &crc_ctx_dma);
1434 goto crc_queuing_error;
1436 crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma;
1438 sp->flags |= SRB_CRC_CTX_DMA_VALID;
1441 crc_ctx_pkt->handle = cmd_pkt->handle;
1443 INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list);
1445 qla24xx_set_t10dif_tags(sp, (struct fw_dif_context *)
1446 &crc_ctx_pkt->ref_tag, tot_prot_dsds);
1448 put_unaligned_le64(crc_ctx_dma, &cmd_pkt->crc_context_address);
1449 cmd_pkt->crc_context_len = CRC_CONTEXT_LEN_FW;
1451 /* Determine SCSI command length -- align to 4 byte boundary */
1452 if (cmd->cmd_len > 16) {
1453 additional_fcpcdb_len = cmd->cmd_len - 16;
1454 if ((cmd->cmd_len % 4) != 0) {
1455 /* SCSI cmd > 16 bytes must be multiple of 4 */
1456 goto crc_queuing_error;
1458 fcp_cmnd_len = 12 + cmd->cmd_len + 4;
1460 additional_fcpcdb_len = 0;
1461 fcp_cmnd_len = 12 + 16 + 4;
1464 fcp_cmnd = &crc_ctx_pkt->fcp_cmnd;
1466 fcp_cmnd->additional_cdb_len = additional_fcpcdb_len;
1467 if (cmd->sc_data_direction == DMA_TO_DEVICE)
1468 fcp_cmnd->additional_cdb_len |= 1;
1469 else if (cmd->sc_data_direction == DMA_FROM_DEVICE)
1470 fcp_cmnd->additional_cdb_len |= 2;
1472 int_to_scsilun(cmd->device->lun, &fcp_cmnd->lun);
1473 memcpy(fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len);
1474 cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(fcp_cmnd_len);
1475 put_unaligned_le64(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF,
1476 &cmd_pkt->fcp_cmnd_dseg_address);
1477 fcp_cmnd->task_management = 0;
1478 fcp_cmnd->task_attribute = TSK_SIMPLE;
1480 cmd_pkt->fcp_rsp_dseg_len = 0; /* Let response come in status iocb */
1482 /* Compute dif len and adjust data len to incude protection */
1484 blk_size = cmd->device->sector_size;
1485 dif_bytes = (data_bytes / blk_size) * 8;
1487 switch (scsi_get_prot_op(GET_CMD_SP(sp))) {
1488 case SCSI_PROT_READ_INSERT:
1489 case SCSI_PROT_WRITE_STRIP:
1490 total_bytes = data_bytes;
1491 data_bytes += dif_bytes;
1494 case SCSI_PROT_READ_STRIP:
1495 case SCSI_PROT_WRITE_INSERT:
1496 case SCSI_PROT_READ_PASS:
1497 case SCSI_PROT_WRITE_PASS:
1498 total_bytes = data_bytes + dif_bytes;
1504 if (!qla2x00_hba_err_chk_enabled(sp))
1505 fw_prot_opts |= 0x10; /* Disable Guard tag checking */
1506 /* HBA error checking enabled */
1507 else if (IS_PI_UNINIT_CAPABLE(ha)) {
1508 if ((scsi_get_prot_type(GET_CMD_SP(sp)) == SCSI_PROT_DIF_TYPE1)
1509 || (scsi_get_prot_type(GET_CMD_SP(sp)) ==
1510 SCSI_PROT_DIF_TYPE2))
1511 fw_prot_opts |= BIT_10;
1512 else if (scsi_get_prot_type(GET_CMD_SP(sp)) ==
1513 SCSI_PROT_DIF_TYPE3)
1514 fw_prot_opts |= BIT_11;
1518 cur_dsd = &crc_ctx_pkt->u.nobundling.data_dsd;
1521 * Configure Bundling if we need to fetch interlaving
1522 * protection PCI accesses
1524 fw_prot_opts |= PO_ENABLE_DIF_BUNDLING;
1525 crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes);
1526 crc_ctx_pkt->u.bundling.dseg_count = cpu_to_le16(tot_dsds -
1528 cur_dsd = &crc_ctx_pkt->u.bundling.data_dsd;
1531 /* Finish the common fields of CRC pkt */
1532 crc_ctx_pkt->blk_size = cpu_to_le16(blk_size);
1533 crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts);
1534 crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes);
1535 crc_ctx_pkt->guard_seed = cpu_to_le16(0);
1536 /* Fibre channel byte count */
1537 cmd_pkt->byte_count = cpu_to_le32(total_bytes);
1538 fcp_dl = (uint32_t *)(crc_ctx_pkt->fcp_cmnd.cdb + 16 +
1539 additional_fcpcdb_len);
1540 *fcp_dl = htonl(total_bytes);
1542 if (!data_bytes || cmd->sc_data_direction == DMA_NONE) {
1543 cmd_pkt->byte_count = cpu_to_le32(0);
1546 /* Walks data segments */
1548 cmd_pkt->control_flags |= cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE);
1550 if (!bundling && tot_prot_dsds) {
1551 if (qla24xx_walk_and_build_sglist_no_difb(ha, sp,
1552 cur_dsd, tot_dsds, NULL))
1553 goto crc_queuing_error;
1554 } else if (qla24xx_walk_and_build_sglist(ha, sp, cur_dsd,
1555 (tot_dsds - tot_prot_dsds), NULL))
1556 goto crc_queuing_error;
1558 if (bundling && tot_prot_dsds) {
1559 /* Walks dif segments */
1560 cmd_pkt->control_flags |= cpu_to_le16(CF_DIF_SEG_DESCR_ENABLE);
1561 cur_dsd = &crc_ctx_pkt->u.bundling.dif_dsd;
1562 if (qla24xx_walk_and_build_prot_sglist(ha, sp, cur_dsd,
1563 tot_prot_dsds, NULL))
1564 goto crc_queuing_error;
1569 /* Cleanup will be performed by the caller */
1571 return QLA_FUNCTION_FAILED;
1575 * qla24xx_start_scsi() - Send a SCSI command to the ISP
1576 * @sp: command to send to the ISP
1578 * Returns non-zero if a failure occurred, else zero.
1581 qla24xx_start_scsi(srb_t *sp)
1584 unsigned long flags;
1588 struct cmd_type_7 *cmd_pkt;
1592 struct req_que *req = NULL;
1593 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1594 struct scsi_qla_host *vha = sp->vha;
1595 struct qla_hw_data *ha = vha->hw;
1597 /* Setup device pointers. */
1600 /* So we know we haven't pci_map'ed anything yet */
1603 /* Send marker if required */
1604 if (vha->marker_needed != 0) {
1605 if (qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL) !=
1607 return QLA_FUNCTION_FAILED;
1608 vha->marker_needed = 0;
1611 /* Acquire ring specific lock */
1612 spin_lock_irqsave(&ha->hardware_lock, flags);
1614 /* Check for room in outstanding command list. */
1615 handle = req->current_outstanding_cmd;
1616 for (index = 1; index < req->num_outstanding_cmds; index++) {
1618 if (handle == req->num_outstanding_cmds)
1620 if (!req->outstanding_cmds[handle])
1623 if (index == req->num_outstanding_cmds)
1626 /* Map the sg table so we have an accurate count of sg entries needed */
1627 if (scsi_sg_count(cmd)) {
1628 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
1629 scsi_sg_count(cmd), cmd->sc_data_direction);
1630 if (unlikely(!nseg))
1636 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
1637 if (req->cnt < (req_cnt + 2)) {
1638 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
1639 RD_REG_DWORD_RELAXED(req->req_q_out);
1640 if (req->ring_index < cnt)
1641 req->cnt = cnt - req->ring_index;
1643 req->cnt = req->length -
1644 (req->ring_index - cnt);
1645 if (req->cnt < (req_cnt + 2))
1649 /* Build command packet. */
1650 req->current_outstanding_cmd = handle;
1651 req->outstanding_cmds[handle] = sp;
1652 sp->handle = handle;
1653 cmd->host_scribble = (unsigned char *)(unsigned long)handle;
1654 req->cnt -= req_cnt;
1656 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr;
1657 cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
1659 /* Zero out remaining portion of packet. */
1660 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */
1661 clr_ptr = (uint32_t *)cmd_pkt + 2;
1662 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
1663 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
1665 /* Set NPORT-ID and LUN number*/
1666 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
1667 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
1668 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
1669 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
1670 cmd_pkt->vp_index = sp->vha->vp_idx;
1672 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
1673 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
1675 cmd_pkt->task = TSK_SIMPLE;
1677 /* Load SCSI command packet. */
1678 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len);
1679 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb));
1681 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
1683 /* Build IOCB segments */
1684 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req);
1686 /* Set total data segment count. */
1687 cmd_pkt->entry_count = (uint8_t)req_cnt;
1689 /* Adjust ring index. */
1691 if (req->ring_index == req->length) {
1692 req->ring_index = 0;
1693 req->ring_ptr = req->ring;
1697 sp->flags |= SRB_DMA_VALID;
1699 /* Set chip new ring index. */
1700 WRT_REG_DWORD(req->req_q_in, req->ring_index);
1702 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1707 scsi_dma_unmap(cmd);
1709 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1711 return QLA_FUNCTION_FAILED;
1715 * qla24xx_dif_start_scsi() - Send a SCSI command to the ISP
1716 * @sp: command to send to the ISP
1718 * Returns non-zero if a failure occurred, else zero.
1721 qla24xx_dif_start_scsi(srb_t *sp)
1724 unsigned long flags;
1729 uint16_t req_cnt = 0;
1731 uint16_t tot_prot_dsds;
1732 uint16_t fw_prot_opts = 0;
1733 struct req_que *req = NULL;
1734 struct rsp_que *rsp = NULL;
1735 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1736 struct scsi_qla_host *vha = sp->vha;
1737 struct qla_hw_data *ha = vha->hw;
1738 struct cmd_type_crc_2 *cmd_pkt;
1739 uint32_t status = 0;
1741 #define QDSS_GOT_Q_SPACE BIT_0
1743 /* Only process protection or >16 cdb in this routine */
1744 if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) {
1745 if (cmd->cmd_len <= 16)
1746 return qla24xx_start_scsi(sp);
1749 /* Setup device pointers. */
1753 /* So we know we haven't pci_map'ed anything yet */
1756 /* Send marker if required */
1757 if (vha->marker_needed != 0) {
1758 if (qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL) !=
1760 return QLA_FUNCTION_FAILED;
1761 vha->marker_needed = 0;
1764 /* Acquire ring specific lock */
1765 spin_lock_irqsave(&ha->hardware_lock, flags);
1767 /* Check for room in outstanding command list. */
1768 handle = req->current_outstanding_cmd;
1769 for (index = 1; index < req->num_outstanding_cmds; index++) {
1771 if (handle == req->num_outstanding_cmds)
1773 if (!req->outstanding_cmds[handle])
1777 if (index == req->num_outstanding_cmds)
1780 /* Compute number of required data segments */
1781 /* Map the sg table so we have an accurate count of sg entries needed */
1782 if (scsi_sg_count(cmd)) {
1783 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
1784 scsi_sg_count(cmd), cmd->sc_data_direction);
1785 if (unlikely(!nseg))
1788 sp->flags |= SRB_DMA_VALID;
1790 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
1791 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) {
1792 struct qla2_sgx sgx;
1795 memset(&sgx, 0, sizeof(struct qla2_sgx));
1796 sgx.tot_bytes = scsi_bufflen(cmd);
1797 sgx.cur_sg = scsi_sglist(cmd);
1801 while (qla24xx_get_one_block_sg(
1802 cmd->device->sector_size, &sgx, &partial))
1808 /* number of required data segments */
1811 /* Compute number of required protection segments */
1812 if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) {
1813 nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
1814 scsi_prot_sg_count(cmd), cmd->sc_data_direction);
1815 if (unlikely(!nseg))
1818 sp->flags |= SRB_CRC_PROT_DMA_VALID;
1820 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
1821 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) {
1822 nseg = scsi_bufflen(cmd) / cmd->device->sector_size;
1829 /* Total Data and protection sg segment(s) */
1830 tot_prot_dsds = nseg;
1832 if (req->cnt < (req_cnt + 2)) {
1833 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
1834 RD_REG_DWORD_RELAXED(req->req_q_out);
1835 if (req->ring_index < cnt)
1836 req->cnt = cnt - req->ring_index;
1838 req->cnt = req->length -
1839 (req->ring_index - cnt);
1840 if (req->cnt < (req_cnt + 2))
1844 status |= QDSS_GOT_Q_SPACE;
1846 /* Build header part of command packet (excluding the OPCODE). */
1847 req->current_outstanding_cmd = handle;
1848 req->outstanding_cmds[handle] = sp;
1849 sp->handle = handle;
1850 cmd->host_scribble = (unsigned char *)(unsigned long)handle;
1851 req->cnt -= req_cnt;
1853 /* Fill-in common area */
1854 cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr;
1855 cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
1857 clr_ptr = (uint32_t *)cmd_pkt + 2;
1858 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
1860 /* Set NPORT-ID and LUN number*/
1861 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
1862 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
1863 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
1864 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
1866 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
1867 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
1869 /* Total Data and protection segment(s) */
1870 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
1872 /* Build IOCB segments and adjust for data protection segments */
1873 if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *)
1874 req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) !=
1878 cmd_pkt->entry_count = (uint8_t)req_cnt;
1879 /* Specify response queue number where completion should happen */
1880 cmd_pkt->entry_status = (uint8_t) rsp->id;
1881 cmd_pkt->timeout = cpu_to_le16(0);
1884 /* Adjust ring index. */
1886 if (req->ring_index == req->length) {
1887 req->ring_index = 0;
1888 req->ring_ptr = req->ring;
1892 /* Set chip new ring index. */
1893 WRT_REG_DWORD(req->req_q_in, req->ring_index);
1895 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1900 if (status & QDSS_GOT_Q_SPACE) {
1901 req->outstanding_cmds[handle] = NULL;
1902 req->cnt += req_cnt;
1904 /* Cleanup will be performed by the caller (queuecommand) */
1906 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1907 return QLA_FUNCTION_FAILED;
1911 * qla2xxx_start_scsi_mq() - Send a SCSI command to the ISP
1912 * @sp: command to send to the ISP
1914 * Returns non-zero if a failure occurred, else zero.
1917 qla2xxx_start_scsi_mq(srb_t *sp)
1920 unsigned long flags;
1924 struct cmd_type_7 *cmd_pkt;
1928 struct req_que *req = NULL;
1929 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1930 struct scsi_qla_host *vha = sp->fcport->vha;
1931 struct qla_hw_data *ha = vha->hw;
1932 struct qla_qpair *qpair = sp->qpair;
1934 /* Acquire qpair specific lock */
1935 spin_lock_irqsave(&qpair->qp_lock, flags);
1937 /* Setup qpair pointers */
1940 /* So we know we haven't pci_map'ed anything yet */
1943 /* Send marker if required */
1944 if (vha->marker_needed != 0) {
1945 if (__qla2x00_marker(vha, qpair, 0, 0, MK_SYNC_ALL) !=
1947 spin_unlock_irqrestore(&qpair->qp_lock, flags);
1948 return QLA_FUNCTION_FAILED;
1950 vha->marker_needed = 0;
1953 /* Check for room in outstanding command list. */
1954 handle = req->current_outstanding_cmd;
1955 for (index = 1; index < req->num_outstanding_cmds; index++) {
1957 if (handle == req->num_outstanding_cmds)
1959 if (!req->outstanding_cmds[handle])
1962 if (index == req->num_outstanding_cmds)
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))
1975 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
1976 if (req->cnt < (req_cnt + 2)) {
1977 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
1978 RD_REG_DWORD_RELAXED(req->req_q_out);
1979 if (req->ring_index < cnt)
1980 req->cnt = cnt - req->ring_index;
1982 req->cnt = req->length -
1983 (req->ring_index - cnt);
1984 if (req->cnt < (req_cnt + 2))
1988 /* Build command packet. */
1989 req->current_outstanding_cmd = handle;
1990 req->outstanding_cmds[handle] = sp;
1991 sp->handle = handle;
1992 cmd->host_scribble = (unsigned char *)(unsigned long)handle;
1993 req->cnt -= req_cnt;
1995 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr;
1996 cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
1998 /* Zero out remaining portion of packet. */
1999 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */
2000 clr_ptr = (uint32_t *)cmd_pkt + 2;
2001 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
2002 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
2004 /* Set NPORT-ID and LUN number*/
2005 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2006 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
2007 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
2008 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
2009 cmd_pkt->vp_index = sp->fcport->vha->vp_idx;
2011 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
2012 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
2014 cmd_pkt->task = TSK_SIMPLE;
2016 /* Load SCSI command packet. */
2017 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len);
2018 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb));
2020 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
2022 /* Build IOCB segments */
2023 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req);
2025 /* Set total data segment count. */
2026 cmd_pkt->entry_count = (uint8_t)req_cnt;
2028 /* Adjust ring index. */
2030 if (req->ring_index == req->length) {
2031 req->ring_index = 0;
2032 req->ring_ptr = req->ring;
2036 sp->flags |= SRB_DMA_VALID;
2038 /* Set chip new ring index. */
2039 WRT_REG_DWORD(req->req_q_in, req->ring_index);
2041 spin_unlock_irqrestore(&qpair->qp_lock, flags);
2046 scsi_dma_unmap(cmd);
2048 spin_unlock_irqrestore(&qpair->qp_lock, flags);
2050 return QLA_FUNCTION_FAILED;
2055 * qla2xxx_dif_start_scsi_mq() - Send a SCSI command to the ISP
2056 * @sp: command to send to the ISP
2058 * Returns non-zero if a failure occurred, else zero.
2061 qla2xxx_dif_start_scsi_mq(srb_t *sp)
2064 unsigned long flags;
2069 uint16_t req_cnt = 0;
2071 uint16_t tot_prot_dsds;
2072 uint16_t fw_prot_opts = 0;
2073 struct req_que *req = NULL;
2074 struct rsp_que *rsp = NULL;
2075 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
2076 struct scsi_qla_host *vha = sp->fcport->vha;
2077 struct qla_hw_data *ha = vha->hw;
2078 struct cmd_type_crc_2 *cmd_pkt;
2079 uint32_t status = 0;
2080 struct qla_qpair *qpair = sp->qpair;
2082 #define QDSS_GOT_Q_SPACE BIT_0
2084 /* Check for host side state */
2085 if (!qpair->online) {
2086 cmd->result = DID_NO_CONNECT << 16;
2087 return QLA_INTERFACE_ERROR;
2090 if (!qpair->difdix_supported &&
2091 scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
2092 cmd->result = DID_NO_CONNECT << 16;
2093 return QLA_INTERFACE_ERROR;
2096 /* Only process protection or >16 cdb in this routine */
2097 if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) {
2098 if (cmd->cmd_len <= 16)
2099 return qla2xxx_start_scsi_mq(sp);
2102 spin_lock_irqsave(&qpair->qp_lock, flags);
2104 /* Setup qpair pointers */
2108 /* So we know we haven't pci_map'ed anything yet */
2111 /* Send marker if required */
2112 if (vha->marker_needed != 0) {
2113 if (__qla2x00_marker(vha, qpair, 0, 0, MK_SYNC_ALL) !=
2115 spin_unlock_irqrestore(&qpair->qp_lock, flags);
2116 return QLA_FUNCTION_FAILED;
2118 vha->marker_needed = 0;
2121 /* Check for room in outstanding command list. */
2122 handle = req->current_outstanding_cmd;
2123 for (index = 1; index < req->num_outstanding_cmds; index++) {
2125 if (handle == req->num_outstanding_cmds)
2127 if (!req->outstanding_cmds[handle])
2131 if (index == req->num_outstanding_cmds)
2134 /* Compute number of required data segments */
2135 /* Map the sg table so we have an accurate count of sg entries needed */
2136 if (scsi_sg_count(cmd)) {
2137 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
2138 scsi_sg_count(cmd), cmd->sc_data_direction);
2139 if (unlikely(!nseg))
2142 sp->flags |= SRB_DMA_VALID;
2144 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
2145 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) {
2146 struct qla2_sgx sgx;
2149 memset(&sgx, 0, sizeof(struct qla2_sgx));
2150 sgx.tot_bytes = scsi_bufflen(cmd);
2151 sgx.cur_sg = scsi_sglist(cmd);
2155 while (qla24xx_get_one_block_sg(
2156 cmd->device->sector_size, &sgx, &partial))
2162 /* number of required data segments */
2165 /* Compute number of required protection segments */
2166 if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) {
2167 nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
2168 scsi_prot_sg_count(cmd), cmd->sc_data_direction);
2169 if (unlikely(!nseg))
2172 sp->flags |= SRB_CRC_PROT_DMA_VALID;
2174 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
2175 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) {
2176 nseg = scsi_bufflen(cmd) / cmd->device->sector_size;
2183 /* Total Data and protection sg segment(s) */
2184 tot_prot_dsds = nseg;
2186 if (req->cnt < (req_cnt + 2)) {
2187 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
2188 RD_REG_DWORD_RELAXED(req->req_q_out);
2189 if (req->ring_index < cnt)
2190 req->cnt = cnt - req->ring_index;
2192 req->cnt = req->length -
2193 (req->ring_index - cnt);
2194 if (req->cnt < (req_cnt + 2))
2198 status |= QDSS_GOT_Q_SPACE;
2200 /* Build header part of command packet (excluding the OPCODE). */
2201 req->current_outstanding_cmd = handle;
2202 req->outstanding_cmds[handle] = sp;
2203 sp->handle = handle;
2204 cmd->host_scribble = (unsigned char *)(unsigned long)handle;
2205 req->cnt -= req_cnt;
2207 /* Fill-in common area */
2208 cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr;
2209 cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
2211 clr_ptr = (uint32_t *)cmd_pkt + 2;
2212 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
2214 /* Set NPORT-ID and LUN number*/
2215 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2216 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
2217 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
2218 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
2220 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
2221 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
2223 /* Total Data and protection segment(s) */
2224 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
2226 /* Build IOCB segments and adjust for data protection segments */
2227 if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *)
2228 req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) !=
2232 cmd_pkt->entry_count = (uint8_t)req_cnt;
2233 cmd_pkt->timeout = cpu_to_le16(0);
2236 /* Adjust ring index. */
2238 if (req->ring_index == req->length) {
2239 req->ring_index = 0;
2240 req->ring_ptr = req->ring;
2244 /* Set chip new ring index. */
2245 WRT_REG_DWORD(req->req_q_in, req->ring_index);
2247 /* Manage unprocessed RIO/ZIO commands in response queue. */
2248 if (vha->flags.process_response_queue &&
2249 rsp->ring_ptr->signature != RESPONSE_PROCESSED)
2250 qla24xx_process_response_queue(vha, rsp);
2252 spin_unlock_irqrestore(&qpair->qp_lock, flags);
2257 if (status & QDSS_GOT_Q_SPACE) {
2258 req->outstanding_cmds[handle] = NULL;
2259 req->cnt += req_cnt;
2261 /* Cleanup will be performed by the caller (queuecommand) */
2263 spin_unlock_irqrestore(&qpair->qp_lock, flags);
2264 return QLA_FUNCTION_FAILED;
2267 /* Generic Control-SRB manipulation functions. */
2269 /* hardware_lock assumed to be held. */
2272 __qla2x00_alloc_iocbs(struct qla_qpair *qpair, srb_t *sp)
2274 scsi_qla_host_t *vha = qpair->vha;
2275 struct qla_hw_data *ha = vha->hw;
2276 struct req_que *req = qpair->req;
2277 device_reg_t *reg = ISP_QUE_REG(ha, req->id);
2278 uint32_t index, handle;
2280 uint16_t cnt, req_cnt;
2286 if (sp && (sp->type != SRB_SCSI_CMD)) {
2287 /* Adjust entry-counts as needed. */
2288 req_cnt = sp->iocbs;
2291 /* Check for room on request queue. */
2292 if (req->cnt < req_cnt + 2) {
2293 if (qpair->use_shadow_reg)
2294 cnt = *req->out_ptr;
2295 else if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
2297 cnt = RD_REG_DWORD(®->isp25mq.req_q_out);
2298 else if (IS_P3P_TYPE(ha))
2299 cnt = RD_REG_DWORD(®->isp82.req_q_out);
2300 else if (IS_FWI2_CAPABLE(ha))
2301 cnt = RD_REG_DWORD(®->isp24.req_q_out);
2302 else if (IS_QLAFX00(ha))
2303 cnt = RD_REG_DWORD(®->ispfx00.req_q_out);
2305 cnt = qla2x00_debounce_register(
2306 ISP_REQ_Q_OUT(ha, ®->isp));
2308 if (req->ring_index < cnt)
2309 req->cnt = cnt - req->ring_index;
2311 req->cnt = req->length -
2312 (req->ring_index - cnt);
2314 if (req->cnt < req_cnt + 2)
2318 /* Check for room in outstanding command list. */
2319 handle = req->current_outstanding_cmd;
2320 for (index = 1; index < req->num_outstanding_cmds; index++) {
2322 if (handle == req->num_outstanding_cmds)
2324 if (!req->outstanding_cmds[handle])
2327 if (index == req->num_outstanding_cmds) {
2328 ql_log(ql_log_warn, vha, 0x700b,
2329 "No room on outstanding cmd array.\n");
2333 /* Prep command array. */
2334 req->current_outstanding_cmd = handle;
2335 req->outstanding_cmds[handle] = sp;
2336 sp->handle = handle;
2340 req->cnt -= req_cnt;
2341 pkt = req->ring_ptr;
2342 memset(pkt, 0, REQUEST_ENTRY_SIZE);
2343 if (IS_QLAFX00(ha)) {
2344 WRT_REG_BYTE((void __iomem *)&pkt->entry_count, req_cnt);
2345 WRT_REG_WORD((void __iomem *)&pkt->handle, handle);
2347 pkt->entry_count = req_cnt;
2348 pkt->handle = handle;
2354 qpair->tgt_counters.num_alloc_iocb_failed++;
2359 qla2x00_alloc_iocbs_ready(struct qla_qpair *qpair, srb_t *sp)
2361 scsi_qla_host_t *vha = qpair->vha;
2363 if (qla2x00_reset_active(vha))
2366 return __qla2x00_alloc_iocbs(qpair, sp);
2370 qla2x00_alloc_iocbs(struct scsi_qla_host *vha, srb_t *sp)
2372 return __qla2x00_alloc_iocbs(vha->hw->base_qpair, sp);
2376 qla24xx_prli_iocb(srb_t *sp, struct logio_entry_24xx *logio)
2378 struct srb_iocb *lio = &sp->u.iocb_cmd;
2380 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
2381 logio->control_flags = cpu_to_le16(LCF_COMMAND_PRLI);
2382 if (lio->u.logio.flags & SRB_LOGIN_NVME_PRLI) {
2383 logio->control_flags |= LCF_NVME_PRLI;
2384 if (sp->vha->flags.nvme_first_burst)
2385 logio->io_parameter[0] = NVME_PRLI_SP_FIRST_BURST;
2388 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2389 logio->port_id[0] = sp->fcport->d_id.b.al_pa;
2390 logio->port_id[1] = sp->fcport->d_id.b.area;
2391 logio->port_id[2] = sp->fcport->d_id.b.domain;
2392 logio->vp_index = sp->vha->vp_idx;
2396 qla24xx_login_iocb(srb_t *sp, struct logio_entry_24xx *logio)
2398 struct srb_iocb *lio = &sp->u.iocb_cmd;
2400 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
2401 if (lio->u.logio.flags & SRB_LOGIN_PRLI_ONLY) {
2402 logio->control_flags = cpu_to_le16(LCF_COMMAND_PRLI);
2404 logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI);
2405 if (lio->u.logio.flags & SRB_LOGIN_COND_PLOGI)
2406 logio->control_flags |= cpu_to_le16(LCF_COND_PLOGI);
2407 if (lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI)
2408 logio->control_flags |= cpu_to_le16(LCF_SKIP_PRLI);
2410 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2411 logio->port_id[0] = sp->fcport->d_id.b.al_pa;
2412 logio->port_id[1] = sp->fcport->d_id.b.area;
2413 logio->port_id[2] = sp->fcport->d_id.b.domain;
2414 logio->vp_index = sp->vha->vp_idx;
2418 qla2x00_login_iocb(srb_t *sp, struct mbx_entry *mbx)
2420 struct qla_hw_data *ha = sp->vha->hw;
2421 struct srb_iocb *lio = &sp->u.iocb_cmd;
2424 mbx->entry_type = MBX_IOCB_TYPE;
2425 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id);
2426 mbx->mb0 = cpu_to_le16(MBC_LOGIN_FABRIC_PORT);
2427 opts = lio->u.logio.flags & SRB_LOGIN_COND_PLOGI ? BIT_0 : 0;
2428 opts |= lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI ? BIT_1 : 0;
2429 if (HAS_EXTENDED_IDS(ha)) {
2430 mbx->mb1 = cpu_to_le16(sp->fcport->loop_id);
2431 mbx->mb10 = cpu_to_le16(opts);
2433 mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | opts);
2435 mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain);
2436 mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 |
2437 sp->fcport->d_id.b.al_pa);
2438 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx);
2442 qla24xx_logout_iocb(srb_t *sp, struct logio_entry_24xx *logio)
2444 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
2445 logio->control_flags =
2446 cpu_to_le16(LCF_COMMAND_LOGO|LCF_IMPL_LOGO);
2447 if (!sp->fcport->keep_nport_handle)
2448 logio->control_flags |= cpu_to_le16(LCF_FREE_NPORT);
2449 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2450 logio->port_id[0] = sp->fcport->d_id.b.al_pa;
2451 logio->port_id[1] = sp->fcport->d_id.b.area;
2452 logio->port_id[2] = sp->fcport->d_id.b.domain;
2453 logio->vp_index = sp->vha->vp_idx;
2457 qla2x00_logout_iocb(srb_t *sp, struct mbx_entry *mbx)
2459 struct qla_hw_data *ha = sp->vha->hw;
2461 mbx->entry_type = MBX_IOCB_TYPE;
2462 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id);
2463 mbx->mb0 = cpu_to_le16(MBC_LOGOUT_FABRIC_PORT);
2464 mbx->mb1 = HAS_EXTENDED_IDS(ha) ?
2465 cpu_to_le16(sp->fcport->loop_id) :
2466 cpu_to_le16(sp->fcport->loop_id << 8);
2467 mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain);
2468 mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 |
2469 sp->fcport->d_id.b.al_pa);
2470 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx);
2471 /* Implicit: mbx->mbx10 = 0. */
2475 qla24xx_adisc_iocb(srb_t *sp, struct logio_entry_24xx *logio)
2477 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
2478 logio->control_flags = cpu_to_le16(LCF_COMMAND_ADISC);
2479 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2480 logio->vp_index = sp->vha->vp_idx;
2484 qla2x00_adisc_iocb(srb_t *sp, struct mbx_entry *mbx)
2486 struct qla_hw_data *ha = sp->vha->hw;
2488 mbx->entry_type = MBX_IOCB_TYPE;
2489 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id);
2490 mbx->mb0 = cpu_to_le16(MBC_GET_PORT_DATABASE);
2491 if (HAS_EXTENDED_IDS(ha)) {
2492 mbx->mb1 = cpu_to_le16(sp->fcport->loop_id);
2493 mbx->mb10 = cpu_to_le16(BIT_0);
2495 mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | BIT_0);
2497 mbx->mb2 = cpu_to_le16(MSW(ha->async_pd_dma));
2498 mbx->mb3 = cpu_to_le16(LSW(ha->async_pd_dma));
2499 mbx->mb6 = cpu_to_le16(MSW(MSD(ha->async_pd_dma)));
2500 mbx->mb7 = cpu_to_le16(LSW(MSD(ha->async_pd_dma)));
2501 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx);
2505 qla24xx_tm_iocb(srb_t *sp, struct tsk_mgmt_entry *tsk)
2509 struct fc_port *fcport = sp->fcport;
2510 scsi_qla_host_t *vha = fcport->vha;
2511 struct qla_hw_data *ha = vha->hw;
2512 struct srb_iocb *iocb = &sp->u.iocb_cmd;
2513 struct req_que *req = vha->req;
2515 flags = iocb->u.tmf.flags;
2516 lun = iocb->u.tmf.lun;
2518 tsk->entry_type = TSK_MGMT_IOCB_TYPE;
2519 tsk->entry_count = 1;
2520 tsk->handle = MAKE_HANDLE(req->id, tsk->handle);
2521 tsk->nport_handle = cpu_to_le16(fcport->loop_id);
2522 tsk->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2);
2523 tsk->control_flags = cpu_to_le32(flags);
2524 tsk->port_id[0] = fcport->d_id.b.al_pa;
2525 tsk->port_id[1] = fcport->d_id.b.area;
2526 tsk->port_id[2] = fcport->d_id.b.domain;
2527 tsk->vp_index = fcport->vha->vp_idx;
2529 if (flags == TCF_LUN_RESET) {
2530 int_to_scsilun(lun, &tsk->lun);
2531 host_to_fcp_swap((uint8_t *)&tsk->lun,
2536 void qla2x00_init_timer(srb_t *sp, unsigned long tmo)
2538 timer_setup(&sp->u.iocb_cmd.timer, qla2x00_sp_timeout, 0);
2539 sp->u.iocb_cmd.timer.expires = jiffies + tmo * HZ;
2540 sp->free = qla2x00_sp_free;
2541 if (IS_QLAFX00(sp->vha->hw) && sp->type == SRB_FXIOCB_DCMD)
2542 init_completion(&sp->u.iocb_cmd.u.fxiocb.fxiocb_comp);
2543 add_timer(&sp->u.iocb_cmd.timer);
2547 qla2x00_els_dcmd_sp_free(void *data)
2550 struct srb_iocb *elsio = &sp->u.iocb_cmd;
2554 if (elsio->u.els_logo.els_logo_pyld)
2555 dma_free_coherent(&sp->vha->hw->pdev->dev, DMA_POOL_SIZE,
2556 elsio->u.els_logo.els_logo_pyld,
2557 elsio->u.els_logo.els_logo_pyld_dma);
2559 del_timer(&elsio->timer);
2564 qla2x00_els_dcmd_iocb_timeout(void *data)
2567 fc_port_t *fcport = sp->fcport;
2568 struct scsi_qla_host *vha = sp->vha;
2569 struct srb_iocb *lio = &sp->u.iocb_cmd;
2571 ql_dbg(ql_dbg_io, vha, 0x3069,
2572 "%s Timeout, hdl=%x, portid=%02x%02x%02x\n",
2573 sp->name, sp->handle, fcport->d_id.b.domain, fcport->d_id.b.area,
2574 fcport->d_id.b.al_pa);
2576 complete(&lio->u.els_logo.comp);
2580 qla2x00_els_dcmd_sp_done(void *ptr, int res)
2583 fc_port_t *fcport = sp->fcport;
2584 struct srb_iocb *lio = &sp->u.iocb_cmd;
2585 struct scsi_qla_host *vha = sp->vha;
2587 ql_dbg(ql_dbg_io, vha, 0x3072,
2588 "%s hdl=%x, portid=%02x%02x%02x done\n",
2589 sp->name, sp->handle, fcport->d_id.b.domain,
2590 fcport->d_id.b.area, fcport->d_id.b.al_pa);
2592 complete(&lio->u.els_logo.comp);
2596 qla24xx_els_dcmd_iocb(scsi_qla_host_t *vha, int els_opcode,
2597 port_id_t remote_did)
2600 fc_port_t *fcport = NULL;
2601 struct srb_iocb *elsio = NULL;
2602 struct qla_hw_data *ha = vha->hw;
2603 struct els_logo_payload logo_pyld;
2604 int rval = QLA_SUCCESS;
2606 fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
2608 ql_log(ql_log_info, vha, 0x70e5, "fcport allocation failed\n");
2612 /* Alloc SRB structure */
2613 sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
2616 ql_log(ql_log_info, vha, 0x70e6,
2617 "SRB allocation failed\n");
2621 elsio = &sp->u.iocb_cmd;
2622 fcport->loop_id = 0xFFFF;
2623 fcport->d_id.b.domain = remote_did.b.domain;
2624 fcport->d_id.b.area = remote_did.b.area;
2625 fcport->d_id.b.al_pa = remote_did.b.al_pa;
2627 ql_dbg(ql_dbg_io, vha, 0x3073, "portid=%02x%02x%02x done\n",
2628 fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa);
2630 sp->type = SRB_ELS_DCMD;
2631 sp->name = "ELS_DCMD";
2632 sp->fcport = fcport;
2633 elsio->timeout = qla2x00_els_dcmd_iocb_timeout;
2634 qla2x00_init_timer(sp, ELS_DCMD_TIMEOUT);
2635 init_completion(&sp->u.iocb_cmd.u.els_logo.comp);
2636 sp->done = qla2x00_els_dcmd_sp_done;
2637 sp->free = qla2x00_els_dcmd_sp_free;
2639 elsio->u.els_logo.els_logo_pyld = dma_alloc_coherent(&ha->pdev->dev,
2640 DMA_POOL_SIZE, &elsio->u.els_logo.els_logo_pyld_dma,
2643 if (!elsio->u.els_logo.els_logo_pyld) {
2645 return QLA_FUNCTION_FAILED;
2648 memset(&logo_pyld, 0, sizeof(struct els_logo_payload));
2650 elsio->u.els_logo.els_cmd = els_opcode;
2651 logo_pyld.opcode = els_opcode;
2652 logo_pyld.s_id[0] = vha->d_id.b.al_pa;
2653 logo_pyld.s_id[1] = vha->d_id.b.area;
2654 logo_pyld.s_id[2] = vha->d_id.b.domain;
2655 host_to_fcp_swap(logo_pyld.s_id, sizeof(uint32_t));
2656 memcpy(&logo_pyld.wwpn, vha->port_name, WWN_SIZE);
2658 memcpy(elsio->u.els_logo.els_logo_pyld, &logo_pyld,
2659 sizeof(struct els_logo_payload));
2661 rval = qla2x00_start_sp(sp);
2662 if (rval != QLA_SUCCESS) {
2664 return QLA_FUNCTION_FAILED;
2667 ql_dbg(ql_dbg_io, vha, 0x3074,
2668 "%s LOGO sent, hdl=%x, loopid=%x, portid=%02x%02x%02x.\n",
2669 sp->name, sp->handle, fcport->loop_id, fcport->d_id.b.domain,
2670 fcport->d_id.b.area, fcport->d_id.b.al_pa);
2672 wait_for_completion(&elsio->u.els_logo.comp);
2679 qla24xx_els_logo_iocb(srb_t *sp, struct els_entry_24xx *els_iocb)
2681 scsi_qla_host_t *vha = sp->vha;
2682 struct srb_iocb *elsio = &sp->u.iocb_cmd;
2684 els_iocb->entry_type = ELS_IOCB_TYPE;
2685 els_iocb->entry_count = 1;
2686 els_iocb->sys_define = 0;
2687 els_iocb->entry_status = 0;
2688 els_iocb->handle = sp->handle;
2689 els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2690 els_iocb->tx_dsd_count = 1;
2691 els_iocb->vp_index = vha->vp_idx;
2692 els_iocb->sof_type = EST_SOFI3;
2693 els_iocb->rx_dsd_count = 0;
2694 els_iocb->opcode = elsio->u.els_logo.els_cmd;
2696 els_iocb->port_id[0] = sp->fcport->d_id.b.al_pa;
2697 els_iocb->port_id[1] = sp->fcport->d_id.b.area;
2698 els_iocb->port_id[2] = sp->fcport->d_id.b.domain;
2699 els_iocb->s_id[0] = vha->d_id.b.al_pa;
2700 els_iocb->s_id[1] = vha->d_id.b.area;
2701 els_iocb->s_id[2] = vha->d_id.b.domain;
2702 els_iocb->control_flags = 0;
2704 if (elsio->u.els_logo.els_cmd == ELS_DCMD_PLOGI) {
2705 els_iocb->tx_byte_count = els_iocb->tx_len =
2706 sizeof(struct els_plogi_payload);
2707 put_unaligned_le64(elsio->u.els_plogi.els_plogi_pyld_dma,
2708 &els_iocb->tx_address);
2709 els_iocb->rx_dsd_count = 1;
2710 els_iocb->rx_byte_count = els_iocb->rx_len =
2711 sizeof(struct els_plogi_payload);
2712 put_unaligned_le64(elsio->u.els_plogi.els_resp_pyld_dma,
2713 &els_iocb->rx_address);
2715 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3073,
2716 "PLOGI ELS IOCB:\n");
2717 ql_dump_buffer(ql_log_info, vha, 0x0109,
2718 (uint8_t *)els_iocb, 0x70);
2720 els_iocb->tx_byte_count = sizeof(struct els_logo_payload);
2721 put_unaligned_le64(elsio->u.els_logo.els_logo_pyld_dma,
2722 &els_iocb->tx_address);
2723 els_iocb->tx_len = cpu_to_le32(sizeof(struct els_logo_payload));
2725 els_iocb->rx_byte_count = 0;
2726 els_iocb->rx_address = 0;
2727 els_iocb->rx_len = 0;
2730 sp->vha->qla_stats.control_requests++;
2734 qla2x00_els_dcmd2_iocb_timeout(void *data)
2737 fc_port_t *fcport = sp->fcport;
2738 struct scsi_qla_host *vha = sp->vha;
2739 struct qla_hw_data *ha = vha->hw;
2740 unsigned long flags = 0;
2743 ql_dbg(ql_dbg_io + ql_dbg_disc, vha, 0x3069,
2744 "%s hdl=%x ELS Timeout, %8phC portid=%06x\n",
2745 sp->name, sp->handle, fcport->port_name, fcport->d_id.b24);
2747 /* Abort the exchange */
2748 spin_lock_irqsave(&ha->hardware_lock, flags);
2749 res = ha->isp_ops->abort_command(sp);
2750 ql_dbg(ql_dbg_io, vha, 0x3070,
2751 "mbx abort_command %s\n",
2752 (res == QLA_SUCCESS) ? "successful" : "failed");
2753 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2755 sp->done(sp, QLA_FUNCTION_TIMEOUT);
2759 qla2x00_els_dcmd2_sp_done(void *ptr, int res)
2762 fc_port_t *fcport = sp->fcport;
2763 struct srb_iocb *lio = &sp->u.iocb_cmd;
2764 struct scsi_qla_host *vha = sp->vha;
2765 struct event_arg ea;
2766 struct qla_work_evt *e;
2768 ql_dbg(ql_dbg_disc, vha, 0x3072,
2769 "%s ELS done rc %d hdl=%x, portid=%06x %8phC\n",
2770 sp->name, res, sp->handle, fcport->d_id.b24, fcport->port_name);
2772 fcport->flags &= ~(FCF_ASYNC_SENT|FCF_ASYNC_ACTIVE);
2773 del_timer(&sp->u.iocb_cmd.timer);
2775 if (sp->flags & SRB_WAKEUP_ON_COMP)
2776 complete(&lio->u.els_plogi.comp);
2779 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2781 memset(&ea, 0, sizeof(ea));
2784 ea.event = FCME_ELS_PLOGI_DONE;
2785 qla2x00_fcport_event_handler(vha, &ea);
2788 e = qla2x00_alloc_work(vha, QLA_EVT_UNMAP);
2790 struct srb_iocb *elsio = &sp->u.iocb_cmd;
2792 if (elsio->u.els_plogi.els_plogi_pyld)
2793 dma_free_coherent(&sp->vha->hw->pdev->dev,
2794 elsio->u.els_plogi.tx_size,
2795 elsio->u.els_plogi.els_plogi_pyld,
2796 elsio->u.els_plogi.els_plogi_pyld_dma);
2798 if (elsio->u.els_plogi.els_resp_pyld)
2799 dma_free_coherent(&sp->vha->hw->pdev->dev,
2800 elsio->u.els_plogi.rx_size,
2801 elsio->u.els_plogi.els_resp_pyld,
2802 elsio->u.els_plogi.els_resp_pyld_dma);
2807 qla2x00_post_work(vha, e);
2812 qla24xx_els_dcmd2_iocb(scsi_qla_host_t *vha, int els_opcode,
2813 fc_port_t *fcport, bool wait)
2816 struct srb_iocb *elsio = NULL;
2817 struct qla_hw_data *ha = vha->hw;
2818 int rval = QLA_SUCCESS;
2819 void *ptr, *resp_ptr;
2821 /* Alloc SRB structure */
2822 sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
2824 ql_log(ql_log_info, vha, 0x70e6,
2825 "SRB allocation failed\n");
2829 elsio = &sp->u.iocb_cmd;
2830 ql_dbg(ql_dbg_io, vha, 0x3073,
2831 "Enter: PLOGI portid=%06x\n", fcport->d_id.b24);
2833 fcport->flags |= FCF_ASYNC_SENT;
2834 sp->type = SRB_ELS_DCMD;
2835 sp->name = "ELS_DCMD";
2836 sp->fcport = fcport;
2838 elsio->timeout = qla2x00_els_dcmd2_iocb_timeout;
2839 init_completion(&elsio->u.els_plogi.comp);
2841 sp->flags = SRB_WAKEUP_ON_COMP;
2843 qla2x00_init_timer(sp, ELS_DCMD_TIMEOUT + 2);
2845 sp->done = qla2x00_els_dcmd2_sp_done;
2846 elsio->u.els_plogi.tx_size = elsio->u.els_plogi.rx_size = DMA_POOL_SIZE;
2848 ptr = elsio->u.els_plogi.els_plogi_pyld =
2849 dma_alloc_coherent(&ha->pdev->dev, DMA_POOL_SIZE,
2850 &elsio->u.els_plogi.els_plogi_pyld_dma, GFP_KERNEL);
2852 if (!elsio->u.els_plogi.els_plogi_pyld) {
2853 rval = QLA_FUNCTION_FAILED;
2857 resp_ptr = elsio->u.els_plogi.els_resp_pyld =
2858 dma_alloc_coherent(&ha->pdev->dev, DMA_POOL_SIZE,
2859 &elsio->u.els_plogi.els_resp_pyld_dma, GFP_KERNEL);
2861 if (!elsio->u.els_plogi.els_resp_pyld) {
2862 rval = QLA_FUNCTION_FAILED;
2866 ql_dbg(ql_dbg_io, vha, 0x3073, "PLOGI %p %p\n", ptr, resp_ptr);
2868 memset(ptr, 0, sizeof(struct els_plogi_payload));
2869 memset(resp_ptr, 0, sizeof(struct els_plogi_payload));
2870 memcpy(elsio->u.els_plogi.els_plogi_pyld->data,
2871 &ha->plogi_els_payld.data,
2872 sizeof(elsio->u.els_plogi.els_plogi_pyld->data));
2874 elsio->u.els_plogi.els_cmd = els_opcode;
2875 elsio->u.els_plogi.els_plogi_pyld->opcode = els_opcode;
2877 ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x3073, "PLOGI buffer:\n");
2878 ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x0109,
2879 (uint8_t *)elsio->u.els_plogi.els_plogi_pyld, 0x70);
2881 rval = qla2x00_start_sp(sp);
2882 if (rval != QLA_SUCCESS) {
2883 rval = QLA_FUNCTION_FAILED;
2885 ql_dbg(ql_dbg_disc, vha, 0x3074,
2886 "%s PLOGI sent, hdl=%x, loopid=%x, to port_id %06x from port_id %06x\n",
2887 sp->name, sp->handle, fcport->loop_id,
2888 fcport->d_id.b24, vha->d_id.b24);
2892 wait_for_completion(&elsio->u.els_plogi.comp);
2894 if (elsio->u.els_plogi.comp_status != CS_COMPLETE)
2895 rval = QLA_FUNCTION_FAILED;
2901 fcport->flags &= ~(FCF_ASYNC_SENT);
2902 if (elsio->u.els_plogi.els_plogi_pyld)
2903 dma_free_coherent(&sp->vha->hw->pdev->dev,
2904 elsio->u.els_plogi.tx_size,
2905 elsio->u.els_plogi.els_plogi_pyld,
2906 elsio->u.els_plogi.els_plogi_pyld_dma);
2908 if (elsio->u.els_plogi.els_resp_pyld)
2909 dma_free_coherent(&sp->vha->hw->pdev->dev,
2910 elsio->u.els_plogi.rx_size,
2911 elsio->u.els_plogi.els_resp_pyld,
2912 elsio->u.els_plogi.els_resp_pyld_dma);
2920 qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb)
2922 struct bsg_job *bsg_job = sp->u.bsg_job;
2923 struct fc_bsg_request *bsg_request = bsg_job->request;
2925 els_iocb->entry_type = ELS_IOCB_TYPE;
2926 els_iocb->entry_count = 1;
2927 els_iocb->sys_define = 0;
2928 els_iocb->entry_status = 0;
2929 els_iocb->handle = sp->handle;
2930 els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2931 els_iocb->tx_dsd_count = cpu_to_le16(bsg_job->request_payload.sg_cnt);
2932 els_iocb->vp_index = sp->vha->vp_idx;
2933 els_iocb->sof_type = EST_SOFI3;
2934 els_iocb->rx_dsd_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt);
2937 sp->type == SRB_ELS_CMD_RPT ?
2938 bsg_request->rqst_data.r_els.els_code :
2939 bsg_request->rqst_data.h_els.command_code;
2940 els_iocb->port_id[0] = sp->fcport->d_id.b.al_pa;
2941 els_iocb->port_id[1] = sp->fcport->d_id.b.area;
2942 els_iocb->port_id[2] = sp->fcport->d_id.b.domain;
2943 els_iocb->control_flags = 0;
2944 els_iocb->rx_byte_count =
2945 cpu_to_le32(bsg_job->reply_payload.payload_len);
2946 els_iocb->tx_byte_count =
2947 cpu_to_le32(bsg_job->request_payload.payload_len);
2949 put_unaligned_le64(sg_dma_address(bsg_job->request_payload.sg_list),
2950 &els_iocb->tx_address);
2951 els_iocb->tx_len = cpu_to_le32(sg_dma_len
2952 (bsg_job->request_payload.sg_list));
2954 put_unaligned_le64(sg_dma_address(bsg_job->reply_payload.sg_list),
2955 &els_iocb->rx_address);
2956 els_iocb->rx_len = cpu_to_le32(sg_dma_len
2957 (bsg_job->reply_payload.sg_list));
2959 sp->vha->qla_stats.control_requests++;
2963 qla2x00_ct_iocb(srb_t *sp, ms_iocb_entry_t *ct_iocb)
2965 uint16_t avail_dsds;
2966 struct dsd64 *cur_dsd;
2967 struct scatterlist *sg;
2970 scsi_qla_host_t *vha = sp->vha;
2971 struct qla_hw_data *ha = vha->hw;
2972 struct bsg_job *bsg_job = sp->u.bsg_job;
2973 int entry_count = 1;
2975 memset(ct_iocb, 0, sizeof(ms_iocb_entry_t));
2976 ct_iocb->entry_type = CT_IOCB_TYPE;
2977 ct_iocb->entry_status = 0;
2978 ct_iocb->handle1 = sp->handle;
2979 SET_TARGET_ID(ha, ct_iocb->loop_id, sp->fcport->loop_id);
2980 ct_iocb->status = cpu_to_le16(0);
2981 ct_iocb->control_flags = cpu_to_le16(0);
2982 ct_iocb->timeout = 0;
2983 ct_iocb->cmd_dsd_count =
2984 cpu_to_le16(bsg_job->request_payload.sg_cnt);
2985 ct_iocb->total_dsd_count =
2986 cpu_to_le16(bsg_job->request_payload.sg_cnt + 1);
2987 ct_iocb->req_bytecount =
2988 cpu_to_le32(bsg_job->request_payload.payload_len);
2989 ct_iocb->rsp_bytecount =
2990 cpu_to_le32(bsg_job->reply_payload.payload_len);
2992 put_unaligned_le64(sg_dma_address(bsg_job->request_payload.sg_list),
2993 &ct_iocb->req_dsd.address);
2994 ct_iocb->req_dsd.length = ct_iocb->req_bytecount;
2996 put_unaligned_le64(sg_dma_address(bsg_job->reply_payload.sg_list),
2997 &ct_iocb->rsp_dsd.address);
2998 ct_iocb->rsp_dsd.length = ct_iocb->rsp_bytecount;
3001 cur_dsd = &ct_iocb->rsp_dsd;
3003 tot_dsds = bsg_job->reply_payload.sg_cnt;
3005 for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) {
3006 cont_a64_entry_t *cont_pkt;
3008 /* Allocate additional continuation packets? */
3009 if (avail_dsds == 0) {
3011 * Five DSDs are available in the Cont.
3014 cont_pkt = qla2x00_prep_cont_type1_iocb(vha,
3015 vha->hw->req_q_map[0]);
3016 cur_dsd = cont_pkt->dsd;
3021 append_dsd64(&cur_dsd, sg);
3024 ct_iocb->entry_count = entry_count;
3026 sp->vha->qla_stats.control_requests++;
3030 qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb)
3032 uint16_t avail_dsds;
3033 struct dsd64 *cur_dsd;
3034 struct scatterlist *sg;
3036 uint16_t cmd_dsds, rsp_dsds;
3037 scsi_qla_host_t *vha = sp->vha;
3038 struct qla_hw_data *ha = vha->hw;
3039 struct bsg_job *bsg_job = sp->u.bsg_job;
3040 int entry_count = 1;
3041 cont_a64_entry_t *cont_pkt = NULL;
3043 ct_iocb->entry_type = CT_IOCB_TYPE;
3044 ct_iocb->entry_status = 0;
3045 ct_iocb->sys_define = 0;
3046 ct_iocb->handle = sp->handle;
3048 ct_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
3049 ct_iocb->vp_index = sp->vha->vp_idx;
3050 ct_iocb->comp_status = cpu_to_le16(0);
3052 cmd_dsds = bsg_job->request_payload.sg_cnt;
3053 rsp_dsds = bsg_job->reply_payload.sg_cnt;
3055 ct_iocb->cmd_dsd_count = cpu_to_le16(cmd_dsds);
3056 ct_iocb->timeout = 0;
3057 ct_iocb->rsp_dsd_count = cpu_to_le16(rsp_dsds);
3058 ct_iocb->cmd_byte_count =
3059 cpu_to_le32(bsg_job->request_payload.payload_len);
3062 cur_dsd = ct_iocb->dsd;
3065 for_each_sg(bsg_job->request_payload.sg_list, sg, cmd_dsds, index) {
3066 /* Allocate additional continuation packets? */
3067 if (avail_dsds == 0) {
3069 * Five DSDs are available in the Cont.
3072 cont_pkt = qla2x00_prep_cont_type1_iocb(
3073 vha, ha->req_q_map[0]);
3074 cur_dsd = cont_pkt->dsd;
3079 append_dsd64(&cur_dsd, sg);
3085 for_each_sg(bsg_job->reply_payload.sg_list, sg, rsp_dsds, index) {
3086 /* Allocate additional continuation packets? */
3087 if (avail_dsds == 0) {
3089 * Five DSDs are available in the Cont.
3092 cont_pkt = qla2x00_prep_cont_type1_iocb(vha,
3094 cur_dsd = cont_pkt->dsd;
3099 append_dsd64(&cur_dsd, sg);
3102 ct_iocb->entry_count = entry_count;
3106 * qla82xx_start_scsi() - Send a SCSI command to the ISP
3107 * @sp: command to send to the ISP
3109 * Returns non-zero if a failure occurred, else zero.
3112 qla82xx_start_scsi(srb_t *sp)
3115 unsigned long flags;
3116 struct scsi_cmnd *cmd;
3123 struct device_reg_82xx __iomem *reg;
3126 uint8_t additional_cdb_len;
3127 struct ct6_dsd *ctx;
3128 struct scsi_qla_host *vha = sp->vha;
3129 struct qla_hw_data *ha = vha->hw;
3130 struct req_que *req = NULL;
3131 struct rsp_que *rsp = NULL;
3133 /* Setup device pointers. */
3134 reg = &ha->iobase->isp82;
3135 cmd = GET_CMD_SP(sp);
3137 rsp = ha->rsp_q_map[0];
3139 /* So we know we haven't pci_map'ed anything yet */
3142 dbval = 0x04 | (ha->portnum << 5);
3144 /* Send marker if required */
3145 if (vha->marker_needed != 0) {
3146 if (qla2x00_marker(vha, ha->base_qpair,
3147 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) {
3148 ql_log(ql_log_warn, vha, 0x300c,
3149 "qla2x00_marker failed for cmd=%p.\n", cmd);
3150 return QLA_FUNCTION_FAILED;
3152 vha->marker_needed = 0;
3155 /* Acquire ring specific lock */
3156 spin_lock_irqsave(&ha->hardware_lock, flags);
3158 /* Check for room in outstanding command list. */
3159 handle = req->current_outstanding_cmd;
3160 for (index = 1; index < req->num_outstanding_cmds; index++) {
3162 if (handle == req->num_outstanding_cmds)
3164 if (!req->outstanding_cmds[handle])
3167 if (index == req->num_outstanding_cmds)
3170 /* Map the sg table so we have an accurate count of sg entries needed */
3171 if (scsi_sg_count(cmd)) {
3172 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
3173 scsi_sg_count(cmd), cmd->sc_data_direction);
3174 if (unlikely(!nseg))
3181 if (tot_dsds > ql2xshiftctondsd) {
3182 struct cmd_type_6 *cmd_pkt;
3183 uint16_t more_dsd_lists = 0;
3184 struct dsd_dma *dsd_ptr;
3187 more_dsd_lists = qla24xx_calc_dsd_lists(tot_dsds);
3188 if ((more_dsd_lists + ha->gbl_dsd_inuse) >= NUM_DSD_CHAIN) {
3189 ql_dbg(ql_dbg_io, vha, 0x300d,
3190 "Num of DSD list %d is than %d for cmd=%p.\n",
3191 more_dsd_lists + ha->gbl_dsd_inuse, NUM_DSD_CHAIN,
3196 if (more_dsd_lists <= ha->gbl_dsd_avail)
3197 goto sufficient_dsds;
3199 more_dsd_lists -= ha->gbl_dsd_avail;
3201 for (i = 0; i < more_dsd_lists; i++) {
3202 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
3204 ql_log(ql_log_fatal, vha, 0x300e,
3205 "Failed to allocate memory for dsd_dma "
3206 "for cmd=%p.\n", cmd);
3210 dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool,
3211 GFP_ATOMIC, &dsd_ptr->dsd_list_dma);
3212 if (!dsd_ptr->dsd_addr) {
3214 ql_log(ql_log_fatal, vha, 0x300f,
3215 "Failed to allocate memory for dsd_addr "
3216 "for cmd=%p.\n", cmd);
3219 list_add_tail(&dsd_ptr->list, &ha->gbl_dsd_list);
3220 ha->gbl_dsd_avail++;
3226 if (req->cnt < (req_cnt + 2)) {
3227 cnt = (uint16_t)RD_REG_DWORD_RELAXED(
3228 ®->req_q_out[0]);
3229 if (req->ring_index < cnt)
3230 req->cnt = cnt - req->ring_index;
3232 req->cnt = req->length -
3233 (req->ring_index - cnt);
3234 if (req->cnt < (req_cnt + 2))
3238 ctx = sp->u.scmd.ctx =
3239 mempool_alloc(ha->ctx_mempool, GFP_ATOMIC);
3241 ql_log(ql_log_fatal, vha, 0x3010,
3242 "Failed to allocate ctx for cmd=%p.\n", cmd);
3246 memset(ctx, 0, sizeof(struct ct6_dsd));
3247 ctx->fcp_cmnd = dma_pool_zalloc(ha->fcp_cmnd_dma_pool,
3248 GFP_ATOMIC, &ctx->fcp_cmnd_dma);
3249 if (!ctx->fcp_cmnd) {
3250 ql_log(ql_log_fatal, vha, 0x3011,
3251 "Failed to allocate fcp_cmnd for cmd=%p.\n", cmd);
3255 /* Initialize the DSD list and dma handle */
3256 INIT_LIST_HEAD(&ctx->dsd_list);
3257 ctx->dsd_use_cnt = 0;
3259 if (cmd->cmd_len > 16) {
3260 additional_cdb_len = cmd->cmd_len - 16;
3261 if ((cmd->cmd_len % 4) != 0) {
3262 /* SCSI command bigger than 16 bytes must be
3265 ql_log(ql_log_warn, vha, 0x3012,
3266 "scsi cmd len %d not multiple of 4 "
3267 "for cmd=%p.\n", cmd->cmd_len, cmd);
3268 goto queuing_error_fcp_cmnd;
3270 ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4;
3272 additional_cdb_len = 0;
3273 ctx->fcp_cmnd_len = 12 + 16 + 4;
3276 cmd_pkt = (struct cmd_type_6 *)req->ring_ptr;
3277 cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
3279 /* Zero out remaining portion of packet. */
3280 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */
3281 clr_ptr = (uint32_t *)cmd_pkt + 2;
3282 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
3283 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
3285 /* Set NPORT-ID and LUN number*/
3286 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
3287 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
3288 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
3289 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
3290 cmd_pkt->vp_index = sp->vha->vp_idx;
3292 /* Build IOCB segments */
3293 if (qla24xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds))
3294 goto queuing_error_fcp_cmnd;
3296 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
3297 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
3299 /* build FCP_CMND IU */
3300 int_to_scsilun(cmd->device->lun, &ctx->fcp_cmnd->lun);
3301 ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len;
3303 if (cmd->sc_data_direction == DMA_TO_DEVICE)
3304 ctx->fcp_cmnd->additional_cdb_len |= 1;
3305 else if (cmd->sc_data_direction == DMA_FROM_DEVICE)
3306 ctx->fcp_cmnd->additional_cdb_len |= 2;
3308 /* Populate the FCP_PRIO. */
3309 if (ha->flags.fcp_prio_enabled)
3310 ctx->fcp_cmnd->task_attribute |=
3311 sp->fcport->fcp_prio << 3;
3313 memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len);
3315 fcp_dl = (uint32_t *)(ctx->fcp_cmnd->cdb + 16 +
3316 additional_cdb_len);
3317 *fcp_dl = htonl((uint32_t)scsi_bufflen(cmd));
3319 cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len);
3320 put_unaligned_le64(ctx->fcp_cmnd_dma,
3321 &cmd_pkt->fcp_cmnd_dseg_address);
3323 sp->flags |= SRB_FCP_CMND_DMA_VALID;
3324 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
3325 /* Set total data segment count. */
3326 cmd_pkt->entry_count = (uint8_t)req_cnt;
3327 /* Specify response queue number where
3328 * completion should happen
3330 cmd_pkt->entry_status = (uint8_t) rsp->id;
3332 struct cmd_type_7 *cmd_pkt;
3334 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
3335 if (req->cnt < (req_cnt + 2)) {
3336 cnt = (uint16_t)RD_REG_DWORD_RELAXED(
3337 ®->req_q_out[0]);
3338 if (req->ring_index < cnt)
3339 req->cnt = cnt - req->ring_index;
3341 req->cnt = req->length -
3342 (req->ring_index - cnt);
3344 if (req->cnt < (req_cnt + 2))
3347 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr;
3348 cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
3350 /* Zero out remaining portion of packet. */
3351 /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/
3352 clr_ptr = (uint32_t *)cmd_pkt + 2;
3353 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
3354 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
3356 /* Set NPORT-ID and LUN number*/
3357 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
3358 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
3359 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
3360 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
3361 cmd_pkt->vp_index = sp->vha->vp_idx;
3363 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
3364 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun,
3365 sizeof(cmd_pkt->lun));
3367 /* Populate the FCP_PRIO. */
3368 if (ha->flags.fcp_prio_enabled)
3369 cmd_pkt->task |= sp->fcport->fcp_prio << 3;
3371 /* Load SCSI command packet. */
3372 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len);
3373 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb));
3375 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
3377 /* Build IOCB segments */
3378 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req);
3380 /* Set total data segment count. */
3381 cmd_pkt->entry_count = (uint8_t)req_cnt;
3382 /* Specify response queue number where
3383 * completion should happen.
3385 cmd_pkt->entry_status = (uint8_t) rsp->id;
3388 /* Build command packet. */
3389 req->current_outstanding_cmd = handle;
3390 req->outstanding_cmds[handle] = sp;
3391 sp->handle = handle;
3392 cmd->host_scribble = (unsigned char *)(unsigned long)handle;
3393 req->cnt -= req_cnt;
3396 /* Adjust ring index. */
3398 if (req->ring_index == req->length) {
3399 req->ring_index = 0;
3400 req->ring_ptr = req->ring;
3404 sp->flags |= SRB_DMA_VALID;
3406 /* Set chip new ring index. */
3407 /* write, read and verify logic */
3408 dbval = dbval | (req->id << 8) | (req->ring_index << 16);
3410 qla82xx_wr_32(ha, (uintptr_t __force)ha->nxdb_wr_ptr, dbval);
3412 WRT_REG_DWORD(ha->nxdb_wr_ptr, dbval);
3414 while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) {
3415 WRT_REG_DWORD(ha->nxdb_wr_ptr, dbval);
3420 /* Manage unprocessed RIO/ZIO commands in response queue. */
3421 if (vha->flags.process_response_queue &&
3422 rsp->ring_ptr->signature != RESPONSE_PROCESSED)
3423 qla24xx_process_response_queue(vha, rsp);
3425 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3428 queuing_error_fcp_cmnd:
3429 dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma);
3432 scsi_dma_unmap(cmd);
3434 if (sp->u.scmd.ctx) {
3435 mempool_free(sp->u.scmd.ctx, ha->ctx_mempool);
3436 sp->u.scmd.ctx = NULL;
3438 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3440 return QLA_FUNCTION_FAILED;
3444 qla24xx_abort_iocb(srb_t *sp, struct abort_entry_24xx *abt_iocb)
3446 struct srb_iocb *aio = &sp->u.iocb_cmd;
3447 scsi_qla_host_t *vha = sp->vha;
3448 struct req_que *req = sp->qpair->req;
3450 memset(abt_iocb, 0, sizeof(struct abort_entry_24xx));
3451 abt_iocb->entry_type = ABORT_IOCB_TYPE;
3452 abt_iocb->entry_count = 1;
3453 abt_iocb->handle = cpu_to_le32(MAKE_HANDLE(req->id, sp->handle));
3455 abt_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
3456 abt_iocb->port_id[0] = sp->fcport->d_id.b.al_pa;
3457 abt_iocb->port_id[1] = sp->fcport->d_id.b.area;
3458 abt_iocb->port_id[2] = sp->fcport->d_id.b.domain;
3460 abt_iocb->handle_to_abort =
3461 cpu_to_le32(MAKE_HANDLE(aio->u.abt.req_que_no,
3462 aio->u.abt.cmd_hndl));
3463 abt_iocb->vp_index = vha->vp_idx;
3464 abt_iocb->req_que_no = cpu_to_le16(aio->u.abt.req_que_no);
3465 /* Send the command to the firmware */
3470 qla2x00_mb_iocb(srb_t *sp, struct mbx_24xx_entry *mbx)
3474 mbx->entry_type = MBX_IOCB_TYPE;
3475 mbx->handle = sp->handle;
3476 sz = min(ARRAY_SIZE(mbx->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.out_mb));
3478 for (i = 0; i < sz; i++)
3479 mbx->mb[i] = cpu_to_le16(sp->u.iocb_cmd.u.mbx.out_mb[i]);
3483 qla2x00_ctpthru_cmd_iocb(srb_t *sp, struct ct_entry_24xx *ct_pkt)
3485 sp->u.iocb_cmd.u.ctarg.iocb = ct_pkt;
3486 qla24xx_prep_ms_iocb(sp->vha, &sp->u.iocb_cmd.u.ctarg);
3487 ct_pkt->handle = sp->handle;
3490 static void qla2x00_send_notify_ack_iocb(srb_t *sp,
3491 struct nack_to_isp *nack)
3493 struct imm_ntfy_from_isp *ntfy = sp->u.iocb_cmd.u.nack.ntfy;
3495 nack->entry_type = NOTIFY_ACK_TYPE;
3496 nack->entry_count = 1;
3497 nack->ox_id = ntfy->ox_id;
3499 nack->u.isp24.handle = sp->handle;
3500 nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle;
3501 if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) {
3502 nack->u.isp24.flags = ntfy->u.isp24.flags &
3503 cpu_to_le32(NOTIFY24XX_FLAGS_PUREX_IOCB);
3505 nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id;
3506 nack->u.isp24.status = ntfy->u.isp24.status;
3507 nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode;
3508 nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle;
3509 nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address;
3510 nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs;
3511 nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui;
3512 nack->u.isp24.srr_flags = 0;
3513 nack->u.isp24.srr_reject_code = 0;
3514 nack->u.isp24.srr_reject_code_expl = 0;
3515 nack->u.isp24.vp_index = ntfy->u.isp24.vp_index;
3519 * Build NVME LS request
3522 qla_nvme_ls(srb_t *sp, struct pt_ls4_request *cmd_pkt)
3524 struct srb_iocb *nvme;
3525 int rval = QLA_SUCCESS;
3527 nvme = &sp->u.iocb_cmd;
3528 cmd_pkt->entry_type = PT_LS4_REQUEST;
3529 cmd_pkt->entry_count = 1;
3530 cmd_pkt->control_flags = CF_LS4_ORIGINATOR << CF_LS4_SHIFT;
3532 cmd_pkt->timeout = cpu_to_le16(nvme->u.nvme.timeout_sec);
3533 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
3534 cmd_pkt->vp_index = sp->fcport->vha->vp_idx;
3536 cmd_pkt->tx_dseg_count = 1;
3537 cmd_pkt->tx_byte_count = nvme->u.nvme.cmd_len;
3538 cmd_pkt->dsd[0].length = nvme->u.nvme.cmd_len;
3539 put_unaligned_le64(nvme->u.nvme.cmd_dma, &cmd_pkt->dsd[0].address);
3541 cmd_pkt->rx_dseg_count = 1;
3542 cmd_pkt->rx_byte_count = nvme->u.nvme.rsp_len;
3543 cmd_pkt->dsd[1].length = nvme->u.nvme.rsp_len;
3544 put_unaligned_le64(nvme->u.nvme.rsp_dma, &cmd_pkt->dsd[1].address);
3550 qla25xx_ctrlvp_iocb(srb_t *sp, struct vp_ctrl_entry_24xx *vce)
3554 vce->entry_type = VP_CTRL_IOCB_TYPE;
3555 vce->handle = sp->handle;
3556 vce->entry_count = 1;
3557 vce->command = cpu_to_le16(sp->u.iocb_cmd.u.ctrlvp.cmd);
3558 vce->vp_count = cpu_to_le16(1);
3561 * index map in firmware starts with 1; decrement index
3562 * this is ok as we never use index 0
3564 map = (sp->u.iocb_cmd.u.ctrlvp.vp_index - 1) / 8;
3565 pos = (sp->u.iocb_cmd.u.ctrlvp.vp_index - 1) & 7;
3566 vce->vp_idx_map[map] |= 1 << pos;
3570 qla24xx_prlo_iocb(srb_t *sp, struct logio_entry_24xx *logio)
3572 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
3573 logio->control_flags =
3574 cpu_to_le16(LCF_COMMAND_PRLO|LCF_IMPL_PRLO);
3576 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
3577 logio->port_id[0] = sp->fcport->d_id.b.al_pa;
3578 logio->port_id[1] = sp->fcport->d_id.b.area;
3579 logio->port_id[2] = sp->fcport->d_id.b.domain;
3580 logio->vp_index = sp->fcport->vha->vp_idx;
3584 qla2x00_start_sp(srb_t *sp)
3586 int rval = QLA_SUCCESS;
3587 scsi_qla_host_t *vha = sp->vha;
3588 struct qla_hw_data *ha = vha->hw;
3589 struct qla_qpair *qp = sp->qpair;
3591 unsigned long flags;
3593 spin_lock_irqsave(qp->qp_lock_ptr, flags);
3594 pkt = __qla2x00_alloc_iocbs(sp->qpair, sp);
3597 ql_log(ql_log_warn, vha, 0x700c,
3598 "qla2x00_alloc_iocbs failed.\n");
3604 IS_FWI2_CAPABLE(ha) ?
3605 qla24xx_login_iocb(sp, pkt) :
3606 qla2x00_login_iocb(sp, pkt);
3609 qla24xx_prli_iocb(sp, pkt);
3611 case SRB_LOGOUT_CMD:
3612 IS_FWI2_CAPABLE(ha) ?
3613 qla24xx_logout_iocb(sp, pkt) :
3614 qla2x00_logout_iocb(sp, pkt);
3616 case SRB_ELS_CMD_RPT:
3617 case SRB_ELS_CMD_HST:
3618 qla24xx_els_iocb(sp, pkt);
3621 IS_FWI2_CAPABLE(ha) ?
3622 qla24xx_ct_iocb(sp, pkt) :
3623 qla2x00_ct_iocb(sp, pkt);
3626 IS_FWI2_CAPABLE(ha) ?
3627 qla24xx_adisc_iocb(sp, pkt) :
3628 qla2x00_adisc_iocb(sp, pkt);
3632 qlafx00_tm_iocb(sp, pkt) :
3633 qla24xx_tm_iocb(sp, pkt);
3635 case SRB_FXIOCB_DCMD:
3636 case SRB_FXIOCB_BCMD:
3637 qlafx00_fxdisc_iocb(sp, pkt);
3640 qla_nvme_ls(sp, pkt);
3644 qlafx00_abort_iocb(sp, pkt) :
3645 qla24xx_abort_iocb(sp, pkt);
3648 qla24xx_els_logo_iocb(sp, pkt);
3650 case SRB_CT_PTHRU_CMD:
3651 qla2x00_ctpthru_cmd_iocb(sp, pkt);
3654 qla2x00_mb_iocb(sp, pkt);
3656 case SRB_NACK_PLOGI:
3659 qla2x00_send_notify_ack_iocb(sp, pkt);
3662 qla25xx_ctrlvp_iocb(sp, pkt);
3665 qla24xx_prlo_iocb(sp, pkt);
3672 qla2x00_start_iocbs(vha, qp->req);
3674 spin_unlock_irqrestore(qp->qp_lock_ptr, flags);
3679 qla25xx_build_bidir_iocb(srb_t *sp, struct scsi_qla_host *vha,
3680 struct cmd_bidir *cmd_pkt, uint32_t tot_dsds)
3682 uint16_t avail_dsds;
3683 struct dsd64 *cur_dsd;
3684 uint32_t req_data_len = 0;
3685 uint32_t rsp_data_len = 0;
3686 struct scatterlist *sg;
3688 int entry_count = 1;
3689 struct bsg_job *bsg_job = sp->u.bsg_job;
3691 /*Update entry type to indicate bidir command */
3692 put_unaligned_le32(COMMAND_BIDIRECTIONAL, &cmd_pkt->entry_type);
3694 /* Set the transfer direction, in this set both flags
3695 * Also set the BD_WRAP_BACK flag, firmware will take care
3696 * assigning DID=SID for outgoing pkts.
3698 cmd_pkt->wr_dseg_count = cpu_to_le16(bsg_job->request_payload.sg_cnt);
3699 cmd_pkt->rd_dseg_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt);
3700 cmd_pkt->control_flags = cpu_to_le16(BD_WRITE_DATA | BD_READ_DATA |
3703 req_data_len = rsp_data_len = bsg_job->request_payload.payload_len;
3704 cmd_pkt->wr_byte_count = cpu_to_le32(req_data_len);
3705 cmd_pkt->rd_byte_count = cpu_to_le32(rsp_data_len);
3706 cmd_pkt->timeout = cpu_to_le16(qla2x00_get_async_timeout(vha) + 2);
3708 vha->bidi_stats.transfer_bytes += req_data_len;
3709 vha->bidi_stats.io_count++;
3711 vha->qla_stats.output_bytes += req_data_len;
3712 vha->qla_stats.output_requests++;
3714 /* Only one dsd is available for bidirectional IOCB, remaining dsds
3715 * are bundled in continuation iocb
3718 cur_dsd = &cmd_pkt->fcp_dsd;
3722 for_each_sg(bsg_job->request_payload.sg_list, sg,
3723 bsg_job->request_payload.sg_cnt, index) {
3724 cont_a64_entry_t *cont_pkt;
3726 /* Allocate additional continuation packets */
3727 if (avail_dsds == 0) {
3728 /* Continuation type 1 IOCB can accomodate
3731 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req);
3732 cur_dsd = cont_pkt->dsd;
3736 append_dsd64(&cur_dsd, sg);
3739 /* For read request DSD will always goes to continuation IOCB
3740 * and follow the write DSD. If there is room on the current IOCB
3741 * then it is added to that IOCB else new continuation IOCB is
3744 for_each_sg(bsg_job->reply_payload.sg_list, sg,
3745 bsg_job->reply_payload.sg_cnt, index) {
3746 cont_a64_entry_t *cont_pkt;
3748 /* Allocate additional continuation packets */
3749 if (avail_dsds == 0) {
3750 /* Continuation type 1 IOCB can accomodate
3753 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req);
3754 cur_dsd = cont_pkt->dsd;
3758 append_dsd64(&cur_dsd, sg);
3761 /* This value should be same as number of IOCB required for this cmd */
3762 cmd_pkt->entry_count = entry_count;
3766 qla2x00_start_bidir(srb_t *sp, struct scsi_qla_host *vha, uint32_t tot_dsds)
3769 struct qla_hw_data *ha = vha->hw;
3770 unsigned long flags;
3776 struct cmd_bidir *cmd_pkt = NULL;
3777 struct rsp_que *rsp;
3778 struct req_que *req;
3779 int rval = EXT_STATUS_OK;
3783 rsp = ha->rsp_q_map[0];
3786 /* Send marker if required */
3787 if (vha->marker_needed != 0) {
3788 if (qla2x00_marker(vha, ha->base_qpair,
3789 0, 0, MK_SYNC_ALL) != QLA_SUCCESS)
3790 return EXT_STATUS_MAILBOX;
3791 vha->marker_needed = 0;
3794 /* Acquire ring specific lock */
3795 spin_lock_irqsave(&ha->hardware_lock, flags);
3797 /* Check for room in outstanding command list. */
3798 handle = req->current_outstanding_cmd;
3799 for (index = 1; index < req->num_outstanding_cmds; index++) {
3801 if (handle == req->num_outstanding_cmds)
3803 if (!req->outstanding_cmds[handle])
3807 if (index == req->num_outstanding_cmds) {
3808 rval = EXT_STATUS_BUSY;
3812 /* Calculate number of IOCB required */
3813 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
3815 /* Check for room on request queue. */
3816 if (req->cnt < req_cnt + 2) {
3817 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
3818 RD_REG_DWORD_RELAXED(req->req_q_out);
3819 if (req->ring_index < cnt)
3820 req->cnt = cnt - req->ring_index;
3822 req->cnt = req->length -
3823 (req->ring_index - cnt);
3825 if (req->cnt < req_cnt + 2) {
3826 rval = EXT_STATUS_BUSY;
3830 cmd_pkt = (struct cmd_bidir *)req->ring_ptr;
3831 cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
3833 /* Zero out remaining portion of packet. */
3834 /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/
3835 clr_ptr = (uint32_t *)cmd_pkt + 2;
3836 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
3838 /* Set NPORT-ID (of vha)*/
3839 cmd_pkt->nport_handle = cpu_to_le16(vha->self_login_loop_id);
3840 cmd_pkt->port_id[0] = vha->d_id.b.al_pa;
3841 cmd_pkt->port_id[1] = vha->d_id.b.area;
3842 cmd_pkt->port_id[2] = vha->d_id.b.domain;
3844 qla25xx_build_bidir_iocb(sp, vha, cmd_pkt, tot_dsds);
3845 cmd_pkt->entry_status = (uint8_t) rsp->id;
3846 /* Build command packet. */
3847 req->current_outstanding_cmd = handle;
3848 req->outstanding_cmds[handle] = sp;
3849 sp->handle = handle;
3850 req->cnt -= req_cnt;
3852 /* Send the command to the firmware */
3854 qla2x00_start_iocbs(vha, req);
3856 spin_unlock_irqrestore(&ha->hardware_lock, flags);