mpt2sas: Rework the MSI-X grouping code

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On systems with a non power-of-two CPU count the existing MSI-X grouping
code failed to distribute interrupts correctly. Rework the code to
handle arbitrary processor counts.

Also remove the hardcoded upper limit on the number of processors so we
can boot on large systems.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Sreekanth Reddy <Sreekanth.reddy@avagotech.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

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Martin K. Petersen 2014-01-03 19:16:55 -05:00 • committed by Christoph Hellwig

parent 9f21316fc2

commit cbbb7b31ad

1 changed files with 23 additions and 41 deletions

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drivers/scsi/mpt2sas/mpt2sas_base.c

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