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| author | Dick Kennedy <dick.kennedy@broadcom.com> | 2017-08-24 01:55:41 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-08-25 04:29:40 +0200 |
| commit | e3e2863def0262782aec6745bb4c0a86b3dfdd3b (patch) | |
| tree | 3dab06759be9c375f8357535d9091fb1f7cd7a61 /drivers/scsi/lpfc/lpfc_sli4.h | |
| parent | scsi: lpfc: Correct issues with FAWWN and FDISCs (diff) | |
| download | linux-e3e2863def0262782aec6745bb4c0a86b3dfdd3b.tar.xz linux-e3e2863def0262782aec6745bb4c0a86b3dfdd3b.zip | |
scsi: lpfc: Limit amount of work processed in IRQ
Various oops being seen on being in the ISR too long and cpu lockups,
when under heavy load.
The amount of work being posted off of completion queues kept the ISR
running almost all the time
Correct the issue by limiting the amount of work per iteration.
[mkp: typo]
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_sli4.h')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_sli4.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h index 7a1d74e9e877..540454b03587 100644 --- a/drivers/scsi/lpfc/lpfc_sli4.h +++ b/drivers/scsi/lpfc/lpfc_sli4.h @@ -158,6 +158,7 @@ struct lpfc_queue { #define LPFC_MQ_REPOST 8 #define LPFC_CQ_REPOST 64 #define LPFC_RQ_REPOST 64 +#define LPFC_MAX_ISR_CQE 64 #define LPFC_RELEASE_NOTIFICATION_INTERVAL 32 /* For WQs */ uint32_t queue_id; /* Queue ID assigned by the hardware */ uint32_t assoc_qid; /* Queue ID associated with, for CQ/WQ/MQ */ |