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 <sgarz...@redhat.com>
---
drivers/vdpa/vdpa_sim/vdpa_sim_blk.c | 5 +++++
1 file changed, 5 insertions(+)
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);
--
2.37.1
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