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scsi: aacraid: Fix INTx/MSI-x issue with older controllers

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commit 8af8e1c22f9994bb1849c01d66c24fe23f9bc9a0 upstream.

commit 78cbccd3bd68 ("aacraid: Fix for KDUMP driver hang")

caused a problem on older controllers which do not support MSI-x (namely
ASR3405,ASR3805). This patch conditionalizes the previous patch to
controllers which support MSI-x

Fixes: 78cbccd3bd68 ("aacraid: Fix for KDUMP driver hang")
Reported-by: Arkadiusz Miskiewicz <a.miskiewicz@gmail.com>
Signed-off-by: Dave Carroll <david.carroll@microsemi.com>
Reviewed-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dave Carroll 2017-02-09 11:04:47 -07:00 committed by Greg Kroah-Hartman
parent 52e02d6bf3
commit 4d6bdf7c73
1 changed files with 6 additions and 2 deletions
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8
drivers/scsi/aacraid/comminit.c
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@ -50,9 +50,13 @@ struct aac_common aac_config = {
static inline int aac_is_msix_mode(struct aac_dev *dev)
{
u32 status;
u32 status = 0;
status = src_readl(dev, MUnit.OMR);
if (dev->pdev->device == PMC_DEVICE_S6 ||
dev->pdev->device == PMC_DEVICE_S7 ||
dev->pdev->device == PMC_DEVICE_S8) {
status = src_readl(dev, MUnit.OMR);
}
return (status & AAC_INT_MODE_MSIX);
}