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(parent: 272652f) | 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)
commit894169db12463cea08d0e2a9e35f42b291340e5a
tree7bac12a9946e61b1ee9b5cc91423adb1da4aaa0atree | snapshot
parent272652fcbf1adf6321efe288583fa4a30a15af31commit | 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
John Crispins staging tree