diff options
| author | Stefano Garzarella <sgarzare@redhat.com> | 2021-03-15 17:34:49 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2021-05-03 10:55:53 +0200 |
| commit | e6fa605227071620c11014efbc2930029e1673b9 (patch) | |
| tree | be867ea1aefa256e10bf47e0d6817957ce1c6a70 /drivers/vdpa/vdpa_sim/vdpa_sim_blk.c | |
| parent | vdpa_sim_blk: implement ramdisk behaviour (diff) | |
| download | linux-e6fa605227071620c11014efbc2930029e1673b9.tar.xz linux-e6fa605227071620c11014efbc2930029e1673b9.zip | |
vdpa_sim_blk: handle VIRTIO_BLK_T_GET_ID
Handle VIRTIO_BLK_T_GET_ID request, always answering the
"vdpa_blk_sim" string.
Acked-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Link: https://lore.kernel.org/r/20210315163450.254396-14-sgarzare@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/vdpa/vdpa_sim/vdpa_sim_blk.c')
| -rw-r--r-- | drivers/vdpa/vdpa_sim/vdpa_sim_blk.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c b/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c index a31964e3e5a4..643ae3bc62c0 100644 --- a/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c +++ b/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c @@ -38,6 +38,7 @@ #define VDPASIM_BLK_VQ_NUM 1 static struct vdpasim *vdpasim_blk_dev; +static char vdpasim_blk_id[VIRTIO_BLK_ID_BYTES] = "vdpa_blk_sim"; static bool vdpasim_blk_check_range(u64 start_sector, size_t range_size) { @@ -153,6 +154,20 @@ static bool vdpasim_blk_handle_req(struct vdpasim *vdpasim, } break; + case VIRTIO_BLK_T_GET_ID: + bytes = vringh_iov_push_iotlb(&vq->vring, &vq->in_iov, + vdpasim_blk_id, + VIRTIO_BLK_ID_BYTES); + if (bytes < 0) { + dev_err(&vdpasim->vdpa.dev, + "vringh_iov_push_iotlb() error: %zd\n", bytes); + status = VIRTIO_BLK_S_IOERR; + break; + } + + pushed += bytes; + break; + default: dev_warn(&vdpasim->vdpa.dev, "Unsupported request type %d\n", type); |