libata-pmp-prep: implement ATA_LFLAG_NO_SRST, ASSUME_ATA and ASSUME_SEMB
commitae791c05694d7391ee9261a0450a50f7e95aedfd
authorTejun Heo <htejun@gmail.com>
Sun, 23 Sep 2007 04:14:12 +0000 (23 13:14 +0900)
committerJeff Garzik <jeff@garzik.org>
Fri, 12 Oct 2007 18:55:41 +0000 (12 14:55 -0400)
tree73e3fbcd6cdfe667b5dcc512daaec7fb5941a132
parentda917d69d0ea63f5390716cba6e77f490ce96df9
libata-pmp-prep: implement ATA_LFLAG_NO_SRST, ASSUME_ATA and ASSUME_SEMB

Some links on some PMPs locks up on SRST and/or report incorrect
device signature.  Implement ATA_LFLAG_NO_SRST, ASSUME_ATA and
ASSUME_SEMB to handle these quirky links.  NO_SRST makes EH avoid
SRST.  ASSUME_ATA and SEMB forces class code to ATA and SEMB_UNSUP
respectively.  Note that SEMB isn't currently supported yet so the
_UNSUP variant is used.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
drivers/ata/libata-eh.c
include/linux/libata.h