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dataplane: Support VIRTIO_BLK_T_SCSI_CMD 

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Fam Zheng 2014-05-22 16:22:43 +08:00 committed by Stefan Hajnoczi
parent 5a05cbeeaa
commit c9f87b20b9
1 changed files with 10 additions and 8 deletions
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18
hw/block/dataplane/virtio-blk.c
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@ -204,6 +204,15 @@ static void do_flush_cmd(VirtIOBlockDataPlane *s, VirtQueueElement *elem,
bdrv_aio_flush(s->blk->conf.bs, complete_flush, req);
}
static void do_scsi_cmd(VirtIOBlockDataPlane *s, VirtQueueElement *elem,
QEMUIOVector *inhdr)
{
int status;
status = virtio_blk_handle_scsi_req(VIRTIO_BLK(s->vdev), elem);
complete_request_early(s, elem, inhdr, status);
}
static int process_request(VirtIOBlockDataPlane *s, VirtQueueElement *elem)
{
struct iovec *iov = elem->out_sg;
@ -252,8 +261,7 @@ static int process_request(VirtIOBlockDataPlane *s, VirtQueueElement *elem)
return 0;
case VIRTIO_BLK_T_SCSI_CMD:
/* TODO support SCSI commands */
complete_request_early(s, elem, inhdr, VIRTIO_BLK_S_UNSUPP);
do_scsi_cmd(s, elem, inhdr);
return 0;
case VIRTIO_BLK_T_FLUSH:
@ -330,12 +338,6 @@ void virtio_blk_data_plane_create(VirtIODevice *vdev, VirtIOBlkConf *blk,
return;
}
if (blk->scsi) {
error_setg(errp,
"device is incompatible with x-data-plane, use scsi=off");
return;
}
/* If dataplane is (re-)enabled while the guest is running there could be
* block jobs that can conflict.
*/