From 518083d2f5b2e7c91549ac1723923e8ae3d679ca Mon Sep 17 00:00:00 2001 From: Stefano Garzarella Date: Thu, 11 Aug 2022 10:36:31 +0200 Subject: 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: Stefano Garzarella Message-Id: <20220811083632.77525-4-sgarzare@redhat.com> Signed-off-by: Michael S. Tsirkin --- drivers/vdpa/vdpa_sim/vdpa_sim_blk.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers/vdpa') diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c b/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c index 24dd9cae6450..1f18f336cf0c 100644 --- 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); -- cgit v1.2.3