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authorAndreas Werner <andreas.werner@men.de>2015-12-04 18:12:49 +0100
committerTejun Heo <tj@kernel.org>2015-12-07 10:25:57 -0500
commitea013a9b205b47b1fcbc72522146fad560af0712 (patch)
tree4cb4246efacefc985f78987c88d36232a9d928fd /include
parentd98f1cd0a3b70ea91f1dfda3ac36c3b2e1a4d5e2 (diff)
downloadleg-kernel-ea013a9b205b47b1fcbc72522146fad560af0712.tar.gz
libata-eh.c: Introduce new ata port flag for controller which lockup on read log page
Some controller lockup on a ata_read_log_page. Add new ata port flag ATA_FLAG_NO_LOG_PAGE which can used to blacklist a controller. If this flag is set, any attempt to read a log page returns an error without actually issuing the command. Signed-off-by: Andreas Werner <andreas.werner@men.de> Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/libata.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 83577f8fd15b..600c1e0626a5 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -210,6 +210,7 @@ enum {
ATA_FLAG_SLAVE_POSS = (1 << 0), /* host supports slave dev */
/* (doesn't imply presence) */
ATA_FLAG_SATA = (1 << 1),
+ ATA_FLAG_NO_LOG_PAGE = (1 << 5), /* do not issue log page read */
ATA_FLAG_NO_ATAPI = (1 << 6), /* No ATAPI support */
ATA_FLAG_PIO_DMA = (1 << 7), /* PIO cmds via DMA */
ATA_FLAG_PIO_LBA48 = (1 << 8), /* Host DMA engine is LBA28 only */