]> git.karo-electronics.de Git - linux-beck.git/commit
Add serial number support for virtio_blk, V4a
authorjohn cooper <john.cooper@redhat.com>
Tue, 9 Jun 2009 12:41:40 +0000 (14:41 +0200)
committerJens Axboe <jens.axboe@oracle.com>
Tue, 9 Jun 2009 12:41:40 +0000 (14:41 +0200)
commit1d589bb16b825b3a7b4edd34d997f1f1f953033d
tree2abc78cb296b6f341c3b08b3f261392e77d6668c
parent77634f33d4078542cf1087995cced0ffdae25aa2
Add serial number support for virtio_blk, V4a

This patch extracts the opaque data from pci i/o
region 0 via the added VIRTIO_BLK_F_IDENTIFY
field.  By convention this data takes the form of
that returned by an ATA IDENTIFY DEVICE command,
however the driver (except for structure size)
makes no interpretation of the data.  The structure
data is copied wholesale to userspace via a
HDIO_GET_IDENTITY ioctl command (eg: hdparm -i <dev>).

Signed-off-by: john cooper <john.cooper@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
drivers/block/virtio_blk.c
include/linux/virtio_blk.h