summaryrefslogtreecommitdiff
path: root/include/linux/ata.h
diff options
context:
space:
mode:
authorBrad Campbell <brad@wasp.net.au>2005-05-12 15:07:47 -0400
committerJeff Garzik <jgarzik@pobox.com>2005-05-12 15:07:47 -0400
commit6f2f38128170814e151cfedf79532e19cd179567 (patch)
tree6728b987c6d4199c4d03335407f5b55859b34a86 /include/linux/ata.h
parent88d7bd8cb9eb8d64bf7997600b0d64f7834047c5 (diff)
downloadlwn-6f2f38128170814e151cfedf79532e19cd179567.tar.gz
lwn-6f2f38128170814e151cfedf79532e19cd179567.zip
[PATCH] libata basic detection and errata for PATA->SATA bridges
This patch works around an issue with WD drives (and possibly others) over SiL PATA->SATA Bridges on SATA controllers locking up with transfers > 200 sectors. Signed-off-by: Brad Campbell <brad@wasp.net.au>
Diffstat (limited to 'include/linux/ata.h')
-rw-r--r--include/linux/ata.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/ata.h b/include/linux/ata.h
index f178894edd04..ca5fcadf9981 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -224,6 +224,7 @@ struct ata_taskfile {
};
#define ata_id_is_ata(id) (((id)[0] & (1 << 15)) == 0)
+#define ata_id_is_sata(id) ((id)[93] == 0)
#define ata_id_rahead_enabled(id) ((id)[85] & (1 << 6))
#define ata_id_wcache_enabled(id) ((id)[85] & (1 << 5))
#define ata_id_has_flush(id) ((id)[83] & (1 << 12))