scsi: megaraid_sas: Add check for reset adapter bit
authorShivasharan S <shivasharan.srikanteshwara@broadcom.com>
Wed, 17 Oct 2018 06:37:42 +0000 (23:37 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 16 Sep 2019 06:22:00 +0000 (08:22 +0200)
commit3263f78640ccc130dfdde8b20d78f78c97ee129f
tree52a0cb1935321356fde8be0e6f0b8801572888f4
parentdc4e3ec9d226e9528ea221483d30fba7b4d24622
scsi: megaraid_sas: Add check for reset adapter bit

[ Upstream commit de93b40d98ead27ee2f7f7df93fdd4914a6c8d8d ]

For SAS3 and later controllers, FW sets the reset adapter bit indicating
the driver to perform a controller reset.  Driver needs to check if this
bit is set before doing a reset.  This reduces the driver probe failure
time to 180seconds in case there is a faulty controller connected.

Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/scsi/megaraid/megaraid_sas_base.c