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(parent: 7a281d2) | patch
scsi: megaraid_sas: Use 63-bit DMA addressing
authorShivasharan S <shivasharan.srikanteshwara@broadcom.com>
Tue, 18 Dec 2018 13:59:54 +0000 (05:59 -0800)
committerMartin K. Petersen <martin.petersen@oracle.com>
Thu, 20 Dec 2018 02:38:54 +0000 (21:38 -0500)
commit1e0f2df61e57ffd6c177b65dbe0d675fb9eccfb8
tree7bac12a9946e61b1ee9b5cc91423adb1da4aaa0atree | snapshot
parent7a281d27f77ba9ee829644ce7a422d68027f6358commit | diff
scsi: megaraid_sas: Use 63-bit DMA addressing

Although MegaRAID controllers support 64-bit DMA addressing, as per
hardware design, DMA address with all 64-bits set
(0xFFFFFFFF-FFFFFFFF) results in a firmware fault.

Driver will set 63-bit DMA mask to ensure the above address will not be
used.

Cc: stable@vger.kernel.org
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
drivers/scsi/megaraid/megaraid_sas_base.c diff | blob | history
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