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>
diff --git a/include/linux/ata.h b/include/linux/ata.h
index 0c4929f..198e1ea 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -89,6 +89,7 @@
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 @@
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 @@
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];