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authorJames Smart <james.smart@avagotech.com>2015-05-21 13:55:20 -0400
committerJames Bottomley <JBottomley@Odin.com>2015-06-05 15:34:53 -0700
commita1efe163102fed8a3b5990a67cadb1193e630820 (patch)
tree4d32bb20472792cd8e04de219fb2074f4e361b93
parent7aafb6e75e0212b5aa5b1f79737e6e8de40b1132 (diff)
downloadlinux-linaro-stable-a1efe163102fed8a3b5990a67cadb1193e630820.tar.gz
lpfc: Fix ABORTs WQ selection in terminate_rport_io
Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
-rw-r--r--drivers/scsi/lpfc/lpfc_sli.c32
1 files changed, 21 insertions, 11 deletions
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 56f73682d4bd..41d337060f0a 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -8792,30 +8792,40 @@ lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
return 0;
}
+/**
+ * lpfc_sli_calc_ring - Calculates which ring to use
+ * @phba: Pointer to HBA context object.
+ * @ring_number: Initial ring
+ * @piocb: Pointer to command iocb.
+ *
+ * For SLI4, FCP IO can deferred to one fo many WQs, based on
+ * fcp_wqidx, thus we need to calculate the corresponding ring.
+ * Since ABORTS must go on the same WQ of the command they are
+ * aborting, we use command's fcp_wqidx.
+ */
int
lpfc_sli_calc_ring(struct lpfc_hba *phba, uint32_t ring_number,
struct lpfc_iocbq *piocb)
{
- uint32_t idx;
-
if (phba->sli_rev == LPFC_SLI_REV4) {
if (piocb->iocb_flag & (LPFC_IO_FCP | LPFC_USE_FCPWQIDX)) {
- /*
- * fcp_wqidx should already be setup based on what
- * completion queue we want to use.
- */
if (!(phba->cfg_fof) ||
(!(piocb->iocb_flag & LPFC_IO_FOF))) {
if (unlikely(!phba->sli4_hba.fcp_wq))
return LPFC_HBA_ERROR;
- idx = lpfc_sli4_scmd_to_wqidx_distr(phba);
- piocb->fcp_wqidx = idx;
- ring_number = MAX_SLI3_CONFIGURED_RINGS + idx;
+ /*
+ * for abort iocb fcp_wqidx should already
+ * be setup based on what work queue we used.
+ */
+ if (!(piocb->iocb_flag & LPFC_USE_FCPWQIDX))
+ piocb->fcp_wqidx =
+ lpfc_sli4_scmd_to_wqidx_distr(phba);
+ ring_number = MAX_SLI3_CONFIGURED_RINGS +
+ piocb->fcp_wqidx;
} else {
if (unlikely(!phba->sli4_hba.oas_wq))
return LPFC_HBA_ERROR;
- idx = 0;
- piocb->fcp_wqidx = idx;
+ piocb->fcp_wqidx = 0;
ring_number = LPFC_FCP_OAS_RING;
}
}