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authorHannes Reinecke <hare@suse.de>2011-03-07 08:56:44 +0100
committerJeff Garzik <jgarzik@pobox.com>2011-03-14 02:59:37 -0400
commit6b3b9d73e08d8939aaf54f85bb47495171f49e20 (patch)
tree585aa0ee0cee78b1fb773073712bae5fd2467d72 /include/linux/ata.h
parent60a230e4a62be6837335911b09101bd8aeb7c95a (diff)
libata: Include WWN ID in inquiry VPD emulation
As per SAT-3 the WWN ID should be included in the VPD page 0x83 (device identification) emulation. Signed-off-by: Hannes Reinecke <hare@suse.de> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Diffstat (limited to 'include/linux/ata.h')
-rw-r--r--include/linux/ata.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/ata.h b/include/linux/ata.h
index 0c4929fa34d..198e1ea2b2e 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -89,6 +89,7 @@ enum {
ATA_ID_SPG = 98,
ATA_ID_LBA_CAPACITY_2 = 100,
ATA_ID_SECTOR_SIZE = 106,
+ ATA_ID_WWN = 108,
ATA_ID_LOGICAL_SECTOR_SIZE = 117, /* and 118 */
ATA_ID_LAST_LUN = 126,
ATA_ID_DLF = 128,
@@ -103,6 +104,7 @@ enum {
ATA_ID_SERNO_LEN = 20,
ATA_ID_FW_REV_LEN = 8,
ATA_ID_PROD_LEN = 40,
+ ATA_ID_WWN_LEN = 8,
ATA_PCI_CTL_OFS = 2,
@@ -815,6 +817,11 @@ static inline int ata_id_has_unload(const u16 *id)
return 0;
}
+static inline bool ata_id_has_wwn(const u16 *id)
+{
+ return (id[ATA_ID_CSF_DEFAULT] & 0xC100) == 0x4100;
+}
+
static inline int ata_id_form_factor(const u16 *id)
{
u16 val = id[168];