tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 88bb507a74ea7d75fa49edd421eaa710a7d80598 commit: da255e2e7cc889e10820bc89752466322426571f scsi: lpfc: Convert SCSI path to use common I/O submission path date: 3 months ago config: i386-randconfig-s031-20210202 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.3-215-g0fb77bb6-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=da255e2e7cc889e10820bc89752466322426571f git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout da255e2e7cc889e10820bc89752466322426571f # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <l...@intel.com>
"sparse warnings: (new ones prefixed by >>)"
drivers/scsi/lpfc/lpfc_scsi.c:129:30: sparse: sparse: cast to restricted
__le32
drivers/scsi/lpfc/lpfc_scsi.c:131:28: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype] word2
@@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:131:28: sparse: expected unsigned int
[usertype] word2
drivers/scsi/lpfc/lpfc_scsi.c:131:28: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:397:35: sparse: sparse: cast to restricted
__le32
drivers/scsi/lpfc/lpfc_scsi.c:398:34: sparse: sparse: cast to restricted
__le32
drivers/scsi/lpfc/lpfc_scsi.c:401:32: sparse: sparse: cast to restricted
__le32
drivers/scsi/lpfc/lpfc_scsi.c:404:35: sparse: sparse: cast to restricted
__le32
drivers/scsi/lpfc/lpfc_scsi.c:405:34: sparse: sparse: cast to restricted
__le32
drivers/scsi/lpfc/lpfc_scsi.c:408:32: sparse: sparse: cast to restricted
__le32
drivers/scsi/lpfc/lpfc_scsi.c:693:22: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype]
addr_hi @@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:693:22: sparse: expected unsigned int
[usertype] addr_hi
drivers/scsi/lpfc/lpfc_scsi.c:693:22: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:694:22: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype]
addr_lo @@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:694:22: sparse: expected unsigned int
[usertype] addr_lo
drivers/scsi/lpfc/lpfc_scsi.c:694:22: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:695:22: sparse: sparse: cast to restricted
__le32
drivers/scsi/lpfc/lpfc_scsi.c:697:20: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype] word2
@@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:697:20: sparse: expected unsigned int
[usertype] word2
drivers/scsi/lpfc/lpfc_scsi.c:697:20: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:698:22: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype]
sge_len @@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:698:22: sparse: expected unsigned int
[usertype] sge_len
drivers/scsi/lpfc/lpfc_scsi.c:698:22: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:703:22: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype]
addr_hi @@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:703:22: sparse: expected unsigned int
[usertype] addr_hi
drivers/scsi/lpfc/lpfc_scsi.c:703:22: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:704:22: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype]
addr_lo @@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:704:22: sparse: expected unsigned int
[usertype] addr_lo
drivers/scsi/lpfc/lpfc_scsi.c:704:22: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:705:22: sparse: sparse: cast to restricted
__le32
drivers/scsi/lpfc/lpfc_scsi.c:707:20: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype] word2
@@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:707:20: sparse: expected unsigned int
[usertype] word2
drivers/scsi/lpfc/lpfc_scsi.c:707:20: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:708:22: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype]
sge_len @@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:708:22: sparse: expected unsigned int
[usertype] sge_len
drivers/scsi/lpfc/lpfc_scsi.c:708:22: sparse: got restricted __le32
[usertype]
>> drivers/scsi/lpfc/lpfc_scsi.c:823:39: sparse: sparse: incorrect type in
>> assignment (different base types) @@ expected unsigned int [usertype] @@
>> got restricted __be32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:823:39: sparse: expected unsigned int
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:823:39: sparse: got restricted __be32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:911:46: sparse: sparse: cast to restricted
__le32
drivers/scsi/lpfc/lpfc_scsi.c:913:41: sparse: sparse: cast to restricted
__le32
drivers/scsi/lpfc/lpfc_scsi.c:915:41: sparse: sparse: cast to restricted
__le32
drivers/scsi/lpfc/lpfc_scsi.c:956:25: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype] fcpDl
@@ got restricted __be32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:956:25: sparse: expected unsigned int
[usertype] fcpDl
drivers/scsi/lpfc/lpfc_scsi.c:956:25: sparse: got restricted __be32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:1088:69: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype]
prot_data @@ got restricted __be32 [usertype] ref_tag @@
drivers/scsi/lpfc/lpfc_scsi.c:1088:69: sparse: expected unsigned int
[usertype] prot_data
drivers/scsi/lpfc/lpfc_scsi.c:1088:69: sparse: got restricted __be32
[usertype] ref_tag
drivers/scsi/lpfc/lpfc_scsi.c:1209:69: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype]
prot_data @@ got restricted __be16 [usertype] app_tag @@
drivers/scsi/lpfc/lpfc_scsi.c:1209:69: sparse: expected unsigned int
[usertype] prot_data
drivers/scsi/lpfc/lpfc_scsi.c:1209:69: sparse: got restricted __be16
[usertype] app_tag
drivers/scsi/lpfc/lpfc_scsi.c:1610:21: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype] word0
@@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:1610:21: sparse: expected unsigned int
[usertype] word0
drivers/scsi/lpfc/lpfc_scsi.c:1610:21: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:1611:22: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype]
reftag @@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:1611:22: sparse: expected unsigned int
[usertype] reftag
drivers/scsi/lpfc/lpfc_scsi.c:1611:22: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:1644:21: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype] word0
@@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:1644:21: sparse: expected unsigned int
[usertype] word0
drivers/scsi/lpfc/lpfc_scsi.c:1644:21: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:1645:21: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype] word1
@@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:1645:21: sparse: expected unsigned int
[usertype] word1
drivers/scsi/lpfc/lpfc_scsi.c:1645:21: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:1646:21: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype] word2
@@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:1646:21: sparse: expected unsigned int
[usertype] word2
drivers/scsi/lpfc/lpfc_scsi.c:1646:21: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:1655:32: sparse: sparse: cast to restricted
__le32
drivers/scsi/lpfc/lpfc_scsi.c:1656:33: sparse: sparse: cast to restricted
__le32
drivers/scsi/lpfc/lpfc_scsi.c:1662:30: sparse: sparse: cast to restricted
__le32
drivers/scsi/lpfc/lpfc_scsi.c:1777:29: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype] word0
@@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:1777:29: sparse: expected unsigned int
[usertype] word0
drivers/scsi/lpfc/lpfc_scsi.c:1777:29: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:1778:30: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype]
reftag @@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:1778:30: sparse: expected unsigned int
[usertype] reftag
drivers/scsi/lpfc/lpfc_scsi.c:1778:30: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:1806:29: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype] word0
@@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:1806:29: sparse: expected unsigned int
[usertype] word0
drivers/scsi/lpfc/lpfc_scsi.c:1806:29: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:1807:29: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype] word1
@@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:1807:29: sparse: expected unsigned int
[usertype] word1
drivers/scsi/lpfc/lpfc_scsi.c:1807:29: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:1808:29: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype] word2
@@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:1808:29: sparse: expected unsigned int
[usertype] word2
drivers/scsi/lpfc/lpfc_scsi.c:1808:29: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:1825:34: sparse: sparse: cast to restricted
__le32
drivers/scsi/lpfc/lpfc_scsi.c:1826:33: sparse: sparse: cast to restricted
__le32
drivers/scsi/lpfc/lpfc_scsi.c:1860:40: sparse: sparse: cast to restricted
__le32
drivers/scsi/lpfc/lpfc_scsi.c:1861:41: sparse: sparse: cast to restricted
__le32
drivers/scsi/lpfc/lpfc_scsi.c:1884:38: sparse: sparse: cast to restricted
__le32
drivers/scsi/lpfc/lpfc_scsi.c:2000:25: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype]
ref_tag @@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:2000:25: sparse: expected unsigned int
[usertype] ref_tag
drivers/scsi/lpfc/lpfc_scsi.c:2000:25: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:2027:23: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype] word2
@@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:2027:23: sparse: expected unsigned int
[usertype] word2
drivers/scsi/lpfc/lpfc_scsi.c:2027:23: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:2028:23: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype] word3
@@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:2028:23: sparse: expected unsigned int
[usertype] word3
drivers/scsi/lpfc/lpfc_scsi.c:2028:23: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:2053:38: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype]
addr_lo @@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:2053:38: sparse: expected unsigned int
[usertype] addr_lo
drivers/scsi/lpfc/lpfc_scsi.c:2053:38: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:2055:38: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype]
addr_hi @@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:2055:38: sparse: expected unsigned int
[usertype] addr_hi
drivers/scsi/lpfc/lpfc_scsi.c:2055:38: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:2067:38: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype]
addr_lo @@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:2067:38: sparse: expected unsigned int
[usertype] addr_lo
drivers/scsi/lpfc/lpfc_scsi.c:2067:38: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:2068:38: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype]
addr_hi @@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:2068:38: sparse: expected unsigned int
[usertype] addr_hi
drivers/scsi/lpfc/lpfc_scsi.c:2068:38: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:2071:36: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype] word2
@@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:2071:36: sparse: expected unsigned int
[usertype] word2
drivers/scsi/lpfc/lpfc_scsi.c:2071:36: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:2072:38: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype]
sge_len @@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:2072:38: sparse: expected unsigned int
[usertype] sge_len
drivers/scsi/lpfc/lpfc_scsi.c:2072:38: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:2082:36: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype] word2
@@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:2082:36: sparse: expected unsigned int
[usertype] word2
drivers/scsi/lpfc/lpfc_scsi.c:2082:36: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:2083:38: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype]
sge_len @@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:2083:38: sparse: expected unsigned int
[usertype] sge_len
drivers/scsi/lpfc/lpfc_scsi.c:2083:38: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:2214:46: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype]
addr_lo @@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:2214:46: sparse: expected unsigned int
[usertype] addr_lo
drivers/scsi/lpfc/lpfc_scsi.c:2214:46: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:2216:46: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype]
addr_hi @@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:2216:46: sparse: expected unsigned int
[usertype] addr_hi
drivers/scsi/lpfc/lpfc_scsi.c:2216:46: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:2220:36: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype] word2
@@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:2220:36: sparse: expected unsigned int
[usertype] word2
drivers/scsi/lpfc/lpfc_scsi.c:2220:36: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:2221:38: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype]
sge_len @@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:2221:38: sparse: expected unsigned int
[usertype] sge_len
drivers/scsi/lpfc/lpfc_scsi.c:2221:38: sparse: got restricted __le32
[usertype]
drivers/scsi/lpfc/lpfc_scsi.c:2233:33: sparse: sparse: incorrect type in
assignment (different base types) @@ expected unsigned int [usertype]
ref_tag @@ got restricted __le32 [usertype] @@
drivers/scsi/lpfc/lpfc_scsi.c:2233:33: sparse: expected unsigned int
[usertype] ref_tag
drivers/scsi/lpfc/lpfc_scsi.c:2233:33: sparse: got restricted __le32
[usertype]
vim +823 drivers/scsi/lpfc/lpfc_scsi.c
579
580 /**
581 * lpfc_get_scsi_buf_s3 - Get a scsi buffer from lpfc_scsi_buf_list of
the HBA
582 * @phba: The HBA for which this call is being executed.
583 * @ndlp: pointer to a node-list data structure.
584 * @cmnd: Pointer to scsi_cmnd data structure.
585 *
586 * This routine removes a scsi buffer from head of @phba
lpfc_scsi_buf_list list
587 * and returns to caller.
588 *
589 * Return codes:
590 * NULL - Error
591 * Pointer to lpfc_scsi_buf - Success
592 **/
593 static struct lpfc_io_buf *
594 lpfc_get_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
595 struct scsi_cmnd *cmnd)
596 {
597 struct lpfc_io_buf *lpfc_cmd = NULL;
598 struct list_head *scsi_buf_list_get =
&phba->lpfc_scsi_buf_list_get;
599 unsigned long iflag = 0;
600
601 spin_lock_irqsave(&phba->scsi_buf_list_get_lock, iflag);
602 list_remove_head(scsi_buf_list_get, lpfc_cmd, struct
lpfc_io_buf,
603 list);
604 if (!lpfc_cmd) {
605 spin_lock(&phba->scsi_buf_list_put_lock);
606 list_splice(&phba->lpfc_scsi_buf_list_put,
607 &phba->lpfc_scsi_buf_list_get);
608 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
609 list_remove_head(scsi_buf_list_get, lpfc_cmd,
610 struct lpfc_io_buf, list);
611 spin_unlock(&phba->scsi_buf_list_put_lock);
612 }
613 spin_unlock_irqrestore(&phba->scsi_buf_list_get_lock, iflag);
614
615 if (lpfc_ndlp_check_qdepth(phba, ndlp) && lpfc_cmd) {
616 atomic_inc(&ndlp->cmd_pending);
617 lpfc_cmd->flags |= LPFC_SBUF_BUMP_QDEPTH;
618 }
619 return lpfc_cmd;
620 }
621 /**
622 * lpfc_get_scsi_buf_s4 - Get a scsi buffer from io_buf_list of the HBA
623 * @phba: The HBA for which this call is being executed.
624 * @ndlp: pointer to a node-list data structure.
625 * @cmnd: Pointer to scsi_cmnd data structure.
626 *
627 * This routine removes a scsi buffer from head of @hdwq io_buf_list
628 * and returns to caller.
629 *
630 * Return codes:
631 * NULL - Error
632 * Pointer to lpfc_scsi_buf - Success
633 **/
634 static struct lpfc_io_buf *
635 lpfc_get_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
636 struct scsi_cmnd *cmnd)
637 {
638 struct lpfc_io_buf *lpfc_cmd;
639 struct lpfc_sli4_hdw_queue *qp;
640 struct sli4_sge *sgl;
641 dma_addr_t pdma_phys_fcp_rsp;
642 dma_addr_t pdma_phys_fcp_cmd;
643 uint32_t cpu, idx;
644 int tag;
645 struct fcp_cmd_rsp_buf *tmp = NULL;
646
647 cpu = raw_smp_processor_id();
648 if (cmnd && phba->cfg_fcp_io_sched == LPFC_FCP_SCHED_BY_HDWQ) {
649 tag = blk_mq_unique_tag(cmnd->request);
650 idx = blk_mq_unique_tag_to_hwq(tag);
651 } else {
652 idx = phba->sli4_hba.cpu_map[cpu].hdwq;
653 }
654
655 lpfc_cmd = lpfc_get_io_buf(phba, ndlp, idx,
656 !phba->cfg_xri_rebalancing);
657 if (!lpfc_cmd) {
658 qp = &phba->sli4_hba.hdwq[idx];
659 qp->empty_io_bufs++;
660 return NULL;
661 }
662
663 /* Setup key fields in buffer that may have been changed
664 * if other protocols used this buffer.
665 */
666 lpfc_cmd->cur_iocbq.iocb_flag = LPFC_IO_FCP;
667 lpfc_cmd->prot_seg_cnt = 0;
668 lpfc_cmd->seg_cnt = 0;
669 lpfc_cmd->timeout = 0;
670 lpfc_cmd->flags = 0;
671 lpfc_cmd->start_time = jiffies;
672 lpfc_cmd->waitq = NULL;
673 lpfc_cmd->cpu = cpu;
674 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
675 lpfc_cmd->prot_data_type = 0;
676 #endif
677 tmp = lpfc_get_cmd_rsp_buf_per_hdwq(phba, lpfc_cmd);
678 if (!tmp) {
679 lpfc_release_io_buf(phba, lpfc_cmd, lpfc_cmd->hdwq);
680 return NULL;
681 }
682
683 lpfc_cmd->fcp_cmnd = tmp->fcp_cmnd;
684 lpfc_cmd->fcp_rsp = tmp->fcp_rsp;
685
686 /*
687 * The first two SGEs are the FCP_CMD and FCP_RSP.
688 * The balance are sg list bdes. Initialize the
689 * first two and leave the rest for queuecommand.
690 */
691 sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl;
692 pdma_phys_fcp_cmd = tmp->fcp_cmd_rsp_dma_handle;
693 sgl->addr_hi = cpu_to_le32(putPaddrHigh(pdma_phys_fcp_cmd));
694 sgl->addr_lo = cpu_to_le32(putPaddrLow(pdma_phys_fcp_cmd));
695 sgl->word2 = le32_to_cpu(sgl->word2);
696 bf_set(lpfc_sli4_sge_last, sgl, 0);
697 sgl->word2 = cpu_to_le32(sgl->word2);
698 sgl->sge_len = cpu_to_le32(sizeof(struct fcp_cmnd));
699 sgl++;
700
701 /* Setup the physical region for the FCP RSP */
702 pdma_phys_fcp_rsp = pdma_phys_fcp_cmd + sizeof(struct fcp_cmnd);
703 sgl->addr_hi = cpu_to_le32(putPaddrHigh(pdma_phys_fcp_rsp));
> 704 sgl->addr_lo = cpu_to_le32(putPaddrLow(pdma_phys_fcp_rsp));
705 sgl->word2 = le32_to_cpu(sgl->word2);
706 bf_set(lpfc_sli4_sge_last, sgl, 1);
707 sgl->word2 = cpu_to_le32(sgl->word2);
708 sgl->sge_len = cpu_to_le32(sizeof(struct fcp_rsp));
709
710 if (lpfc_ndlp_check_qdepth(phba, ndlp)) {
711 atomic_inc(&ndlp->cmd_pending);
712 lpfc_cmd->flags |= LPFC_SBUF_BUMP_QDEPTH;
713 }
714 return lpfc_cmd;
715 }
716 /**
717 * lpfc_get_scsi_buf - Get a scsi buffer from lpfc_scsi_buf_list of the
HBA
718 * @phba: The HBA for which this call is being executed.
719 * @ndlp: pointer to a node-list data structure.
720 * @cmnd: Pointer to scsi_cmnd data structure.
721 *
722 * This routine removes a scsi buffer from head of @phba
lpfc_scsi_buf_list list
723 * and returns to caller.
724 *
725 * Return codes:
726 * NULL - Error
727 * Pointer to lpfc_scsi_buf - Success
728 **/
729 static struct lpfc_io_buf*
730 lpfc_get_scsi_buf(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
731 struct scsi_cmnd *cmnd)
732 {
733 return phba->lpfc_get_scsi_buf(phba, ndlp, cmnd);
734 }
735
736 /**
737 * lpfc_release_scsi_buf - Return a scsi buffer back to hba scsi buf
list
738 * @phba: The Hba for which this call is being executed.
739 * @psb: The scsi buffer which is being released.
740 *
741 * This routine releases @psb scsi buffer by adding it to tail of @phba
742 * lpfc_scsi_buf_list list.
743 **/
744 static void
745 lpfc_release_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_io_buf *psb)
746 {
747 unsigned long iflag = 0;
748
749 psb->seg_cnt = 0;
750 psb->prot_seg_cnt = 0;
751
752 spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
753 psb->pCmd = NULL;
754 psb->cur_iocbq.iocb_flag = LPFC_IO_FCP;
755 list_add_tail(&psb->list, &phba->lpfc_scsi_buf_list_put);
756 spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
757 }
758
759 /**
760 * lpfc_release_scsi_buf_s4: Return a scsi buffer back to hba scsi buf
list.
761 * @phba: The Hba for which this call is being executed.
762 * @psb: The scsi buffer which is being released.
763 *
764 * This routine releases @psb scsi buffer by adding it to tail of @hdwq
765 * io_buf_list list. For SLI4 XRI's are tied to the scsi buffer
766 * and cannot be reused for at least RA_TOV amount of time if it was
767 * aborted.
768 **/
769 static void
770 lpfc_release_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_io_buf *psb)
771 {
772 struct lpfc_sli4_hdw_queue *qp;
773 unsigned long iflag = 0;
774
775 psb->seg_cnt = 0;
776 psb->prot_seg_cnt = 0;
777
778 qp = psb->hdwq;
779 if (psb->flags & LPFC_SBUF_XBUSY) {
780 spin_lock_irqsave(&qp->abts_io_buf_list_lock, iflag);
781 psb->pCmd = NULL;
782 list_add_tail(&psb->list, &qp->lpfc_abts_io_buf_list);
783 qp->abts_scsi_io_bufs++;
784 spin_unlock_irqrestore(&qp->abts_io_buf_list_lock,
iflag);
785 } else {
786 lpfc_release_io_buf(phba, (struct lpfc_io_buf *)psb,
qp);
787 }
788 }
789
790 /**
791 * lpfc_release_scsi_buf: Return a scsi buffer back to hba scsi buf
list.
792 * @phba: The Hba for which this call is being executed.
793 * @psb: The scsi buffer which is being released.
794 *
795 * This routine releases @psb scsi buffer by adding it to tail of @phba
796 * lpfc_scsi_buf_list list.
797 **/
798 static void
799 lpfc_release_scsi_buf(struct lpfc_hba *phba, struct lpfc_io_buf *psb)
800 {
801 if ((psb->flags & LPFC_SBUF_BUMP_QDEPTH) && psb->ndlp)
802 atomic_dec(&psb->ndlp->cmd_pending);
803
804 psb->flags &= ~LPFC_SBUF_BUMP_QDEPTH;
805 phba->lpfc_release_scsi_buf(phba, psb);
806 }
807
808 /**
809 * lpfc_fcpcmd_to_iocb - copy the fcp_cmd data into the IOCB
810 * @data: A pointer to the immediate command data portion of the IOCB.
811 * @fcp_cmnd: The FCP Command that is provided by the SCSI layer.
812 *
813 * The routine copies the entire FCP command from @fcp_cmnd to @data
while
814 * byte swapping the data to big endian format for transmission on the
wire.
815 **/
816 static void
817 lpfc_fcpcmd_to_iocb(u8 *data, struct fcp_cmnd *fcp_cmnd)
818 {
819 int i, j;
820
821 for (i = 0, j = 0; i < sizeof(struct fcp_cmnd);
822 i += sizeof(uint32_t), j++) {
> 823 ((uint32_t *)data)[j] = cpu_to_be32(((uint32_t
> *)fcp_cmnd)[j]);
824 }
825 }
826
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