Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.4 15/20] scsi: aacraid: Fix INTx/MSI-x issue with older controllers | Date | Mon, 13 Feb 2017 05:05:00 -0800 |
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4.4-stable review patch. If anyone has any objections, please let me know.
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From: Dave Carroll <david.carroll@microsemi.com>
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>
--- drivers/scsi/aacraid/comminit.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)
--- a/drivers/scsi/aacraid/comminit.c +++ b/drivers/scsi/aacraid/comminit.c @@ -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); }
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