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[SCSI] qla4xxx: Throttle active IOCBs to firmware limits
authorKaren Higgins <karen.higgins@qlogic.com>
Mon, 21 Jan 2013 04:51:00 +0000 (23:51 -0500)
committerJames Bottomley <JBottomley@Parallels.com>
Wed, 30 Jan 2013 02:47:16 +0000 (13:47 +1100)
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>

No differences found
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