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authorTejun Heo <htejun@gmail.com>2007-09-23 13:14:12 +0900
committerJeff Garzik <jeff@garzik.org>2007-10-12 14:55:41 -0400
commitae791c05694d7391ee9261a0450a50f7e95aedfd (patch)
tree73e3fbcd6cdfe667b5dcc512daaec7fb5941a132 /include/linux/libata.h
parentda917d69d0ea63f5390716cba6e77f490ce96df9 (diff)
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>
Diffstat (limited to 'include/linux/libata.h')
-rw-r--r--include/linux/libata.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h
index f9f81fd9329..6266fffb0eb 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -165,6 +165,10 @@ enum {
ATA_LFLAG_HRST_TO_RESUME = (1 << 0), /* hardreset to resume link */
ATA_LFLAG_SKIP_D2H_BSY = (1 << 1), /* can't wait for the first D2H
* Register FIS clearing BSY */
+ 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 */
+ ATA_LFLAG_ASSUME_CLASS = ATA_LFLAG_ASSUME_ATA | ATA_LFLAG_ASSUME_SEMB,
/* struct ata_port flags */
ATA_FLAG_SLAVE_POSS = (1 << 0), /* host supports slave dev */