[SCSI] qla4xxx: Fix processing response queue during probe

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Issue:
While booting with kdump kernel, driver receive IOCB interrupts
for which it is not ready which results in processing them
before init_firmware during driver probe

Fix:
Two steps solution
1. Make driver ready to process the interrupt before interupts
   handlers is registered.
2. Stop driver processing iocb interrupts if not generated as per
   firmware protocol i.e R2H bit set

Signed-off-by: Tej Parkash <tej.parkash@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

...

This commit is contained in:

Tej Parkash 2013-12-16 06:49:42 -05:00 • committed by James Bottomley

parent 831805a150

commit 1b3d399cf6

3 changed files with 16 additions and 6 deletions

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15

drivers/scsi/qla4xxx/ql4_isr.c

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3

drivers/scsi/qla4xxx/ql4_mbx.c

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4

drivers/scsi/qla4xxx/ql4_nx.c

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