From 4cb2ea28c55cf5e5ef83aec535099ffce3c583df Mon Sep 17 00:00:00 2001 From: john cooper Date: Thu, 25 Mar 2010 01:33:33 -0400 Subject: Add virtio disk identification support Add virtio-blk device id (s/n) support via virtio request. Signed-off-by: john cooper Signed-off-by: Rusty Russell --- include/linux/virtio_blk.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/linux/virtio_blk.h') diff --git a/include/linux/virtio_blk.h b/include/linux/virtio_blk.h index e52029e98919..167720d695ed 100644 --- a/include/linux/virtio_blk.h +++ b/include/linux/virtio_blk.h @@ -17,6 +17,8 @@ #define VIRTIO_BLK_F_FLUSH 9 /* Cache flush command support */ #define VIRTIO_BLK_F_TOPOLOGY 10 /* Topology information is available */ +#define VIRTIO_BLK_ID_BYTES 20 /* ID string length */ + struct virtio_blk_config { /* The capacity (in 512-byte sectors). */ __u64 capacity; @@ -67,6 +69,9 @@ struct virtio_blk_config { /* Cache flush command */ #define VIRTIO_BLK_T_FLUSH 4 +/* Get device ID command */ +#define VIRTIO_BLK_T_GET_ID 8 + /* Barrier before this op. */ #define VIRTIO_BLK_T_BARRIER 0x80000000 -- cgit v1.2.2