diff options
| author | Karen Higgins <karen.higgins@qlogic.com> | 2013-01-20 23:51:00 -0500 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2013-01-30 13:47:16 +1100 |
| commit | 5b1c1bff07d579f8a7b672d4e5262d52eba5ef01 (patch) | |
| tree | 83b802ffe3e95af2c8e2ecfc1fc907143149f274 /drivers/scsi/qla4xxx/ql4_iocb.c | |
| parent | ff4108dce9e82acbde8e8b1899aaa4d91bf504b7 (diff) | |
| download | linux-5b1c1bff07d579f8a7b672d4e5262d52eba5ef01.tar.bz2 | |
[SCSI] qla4xxx: Throttle active IOCBs to firmware limits
Problem:
QLA4xxx firmware may assert if given more IOCBs than it can handle.
Solution:
The driver was updated to throttle the number of active IOCBs based
on the total number of IOCB buffers received from get_firmware_status
mbx_sts[2].
Signed-off-by: Karen Higgins <karen.higgins@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/qla4xxx/ql4_iocb.c')
| -rw-r--r-- | drivers/scsi/qla4xxx/ql4_iocb.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_iocb.c b/drivers/scsi/qla4xxx/ql4_iocb.c index f48f37a281d1..14fec976f634 100644 --- a/drivers/scsi/qla4xxx/ql4_iocb.c +++ b/drivers/scsi/qla4xxx/ql4_iocb.c @@ -316,7 +316,7 @@ int qla4xxx_send_command_to_isp(struct scsi_qla_host *ha, struct srb * srb) goto queuing_error; /* total iocbs active */ - if ((ha->iocb_cnt + req_cnt) >= REQUEST_QUEUE_DEPTH) + if ((ha->iocb_cnt + req_cnt) >= ha->iocb_hiwat) goto queuing_error; /* Build command packet */ |