vdpa_sim_blk: add support for VIRTIO_BLK_T_FLUSH

[linux-2.6-microblaze.git] / drivers / vdpa / vdpa_sim / vdpa_sim_blk.c

diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c b/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c
index 24dd9ca..1f18f33 100644 (file)
--- a/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c
+++ b/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c
@@ -25,6 +25,7 @@
 #define DRV_LICENSE  "GPL v2"
 
 #define VDPASIM_BLK_FEATURES   (VDPASIM_FEATURES | \
+                                (1ULL << VIRTIO_BLK_F_FLUSH)    | \
                                 (1ULL << VIRTIO_BLK_F_SIZE_MAX) | \
                                 (1ULL << VIRTIO_BLK_F_SEG_MAX)  | \
                                 (1ULL << VIRTIO_BLK_F_BLK_SIZE) | \
@@ -188,6 +189,10 @@ static bool vdpasim_blk_handle_req(struct vdpasim *vdpasim,
                pushed += bytes;
                break;
 
+       case VIRTIO_BLK_T_FLUSH:
+               /* nothing to do */
+               break;
+
        default:
                dev_dbg(&vdpasim->vdpa.dev,
                        "Unsupported request type %d\n", type);