]> www.infradead.org Git - users/jedix/linux-maple.git/commit
scsi: megaraid_sas: Do not use 32-bit atomic request descriptor for Ventura controllers
authorShivasharan S <shivasharan.srikanteshwara@broadcom.com>
Wed, 14 Feb 2018 08:10:52 +0000 (00:10 -0800)
committerJack Vogel <jack.vogel@oracle.com>
Thu, 8 Mar 2018 02:44:11 +0000 (18:44 -0800)
commitc57d05985f2aa9998010c983526b38059690ec61
tree99359ae5500d8dd1066a0881a486872c6bcf1077
parent8fd557d272eb7213a1f4bc619ec19966f1a71b64
scsi: megaraid_sas: Do not use 32-bit atomic request descriptor for Ventura controllers

Problem Statement: Sending I/O through 32 bit descriptors to Ventura series of
controller results in IO timeout on certain conditions.

This error only occurs on systems with high I/O activity on Ventura series
controllers.

Changes in this patch will prevent driver from using 32 bit descriptor and use
64 bit Descriptors.

Cc: <stable@vger.kernel.org>
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Orabug: 27625001
Signed-off-by: Jack Vogel <jack.vogel@oracle.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
drivers/scsi/megaraid/megaraid_sas_fusion.c