[SCSI] hpsa: use new doorbell-bit-5 reset method
authorStephen M. Cameron <scameron@beardog.cce.hp.com>
Tue, 3 May 2011 19:59:46 +0000 (14:59 -0500)
committerJames Bottomley <jbottomley@parallels.com>
Tue, 17 May 2011 07:07:01 +0000 (11:07 +0400)
commitcf0b08d0cd87ada9d284925834d08fb8026da888
tree41c1c9facfd1daa5d848e07904c377be350bf831
parent9a41338e5b474add499a7ca2a5a76148e5076805
[SCSI] hpsa: use new doorbell-bit-5 reset method

The bit-2-doorbell reset method seemed to cause (survivable) NMIs
on some systems and (unsurvivable) IOCK NMIs on some G7 servers.
Firmware guys implemented a new doorbell method to alleviate these
problems triggered by bit 5 of the doorbell register.  We want to
use it if it's available.

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
drivers/scsi/hpsa.c
drivers/scsi/hpsa_cmd.h