scsi: mpt3sas: As per MPI-spec, use combined reply queue for SAS3.5 controllers when HBA supports more than 16 MSI-x vectors.

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Presently driver is using combined reply queue feature when MSI-x vectors >
8 for both SAS3 and SAS3.5 controllers.  But as per MPI-spec,

1. For SAS3 controllers, driver should use combined reply queue when HBA
supports more than 8 MSI-x vectors.

2. For SAS3.5 controllers, driver should use combined reply queue when HBA
supports more than 16 MSI-x vectors.

Modified driver code to use combined reply queue for SAS3 controllers when
HBA supports > 8 MSI-x vectors and for SAS3.5 controllers when HBA supports
> 16 MSI-x vectors.

Signed-off-by: Chaitra P B <chaitra.basappa@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

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This commit is contained in:

Chaitra P B 2018-05-31 06:34:51 -04:00 • committed by Martin K. Petersen

parent d37306ca0e

commit 2b48be6568

2 changed files with 9 additions and 7 deletions

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15

drivers/scsi/mpt3sas/mpt3sas_base.c

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1

drivers/scsi/mpt3sas/mpt3sas_base.h

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