Commit 518083d2 authored by Stefano Garzarella's avatar Stefano Garzarella Committed by Michael S. Tsirkin
Browse files

vdpa_sim_blk: add support for VIRTIO_BLK_T_FLUSH 



The simulator behaves like a ramdisk, so we don't have to do
anything when a VIRTIO_BLK_T_FLUSH request is received, but it
could be useful to test driver behavior.

Let's expose the VIRTIO_BLK_F_FLUSH feature to inform the driver
that we support the flush command.

Signed-off-by: default avatarStefano Garzarella <sgarzare@redhat.com>
Message-Id: <20220811083632.77525-4-sgarzare@redhat.com>
Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
parent ac926e1b

drivers/vdpa/vdpa_sim/vdpa_sim_blk.c

+5 −0
Original line number Diff line number Diff line
@@ -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);