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libata: implement no[hs]rst force params

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Implement force params nohrst, nosrst and norst.  This is to work
around reset related problems and ease debugging.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Tejun Heo 2008-08-13 20:19:09 +09:00 • committed by Jeff Garzik
parent 6a55617ed5
commit 05944bdf6f
4 changed files with 38 additions and 16 deletions
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1
include/linux/libata.h
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@ -163,6 +163,7 @@ enum {
ATA_DEV_NONE = 9, /* no device */
/* struct ata_link flags */
ATA_LFLAG_NO_HRST = (1 << 1), /* avoid hardreset */
ATA_LFLAG_NO_SRST = (1 << 2), /* avoid softreset */
ATA_LFLAG_ASSUME_ATA = (1 << 3), /* assume ATA class */
ATA_LFLAG_ASSUME_SEMB = (1 << 4), /* assume SEMB class */