diff options
| author |   James Smart <jsmart2021@gmail.com> | 2017-06-15 22:56:45 -0700 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2017-06-19 21:40:10 -0400 |
| commit | 966bb5b7119607cf3d9a0d668eb67af67c2bab45 (patch) | |
| tree | e5c220c32903cb65cf898ab2d71eb5b7de8c9b6f /drivers/scsi/lpfc/lpfc_attr.c | |
| parent | scsi: lpfc: Reduce time spent in IRQ for received NVME commands (diff) | |
| download | linux-dev-966bb5b7119607cf3d9a0d668eb67af67c2bab45.tar.xz linux-dev-966bb5b7119607cf3d9a0d668eb67af67c2bab45.zip | |
scsi: lpfc: Break up IO ctx list into a separate get and put list
Since unsol rcv ISR and command cmpl ISR both access/lock this list,
separate get/put lists will reduce contention.
Replaced
struct list_head lpfc_nvmet_ctx_list;
with
struct list_head lpfc_nvmet_ctx_get_list;
struct list_head lpfc_nvmet_ctx_put_list;
and all correpsonding locks and counters.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_attr.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_attr.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index af22602b1058..4ed48ed38e79 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -245,15 +245,18 @@ lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr, atomic_read(&tgtp->xmt_abort_rsp), atomic_read(&tgtp->xmt_abort_rsp_error)); - spin_lock(&phba->sli4_hba.nvmet_io_lock); + spin_lock(&phba->sli4_hba.nvmet_ctx_get_lock); + spin_lock(&phba->sli4_hba.nvmet_ctx_put_lock); tot = phba->sli4_hba.nvmet_xri_cnt - - phba->sli4_hba.nvmet_ctx_cnt; - spin_unlock(&phba->sli4_hba.nvmet_io_lock); + (phba->sli4_hba.nvmet_ctx_get_cnt + + phba->sli4_hba.nvmet_ctx_put_cnt); + spin_unlock(&phba->sli4_hba.nvmet_ctx_put_lock); + spin_unlock(&phba->sli4_hba.nvmet_ctx_get_lock); len += snprintf(buf + len, PAGE_SIZE - len, "IO_CTX: %08x WAIT: cur %08x tot %08x\n" "CTX Outstanding %08llx\n", - phba->sli4_hba.nvmet_ctx_cnt, + phba->sli4_hba.nvmet_xri_cnt, phba->sli4_hba.nvmet_io_wait_cnt, phba->sli4_hba.nvmet_io_wait_total, tot); |