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authorLaurent Vivier <lvivier@redhat.com>2020-10-29 13:20:49 +0100
committerMichael S. Tsirkin <mst@redhat.com>2020-10-30 04:04:35 -0400
commit4a6a42db53aae049a8a64d4b273761bc80c46ebf (patch)
tree5583779821b479100e39f4034a791ccd092cdd0f /drivers/vdpa
parente01afe36df1a9e42cacdb9c5b99512ec69a6f14b (diff)
downloadlinux-4a6a42db53aae049a8a64d4b273761bc80c46ebf.tar.gz
vdpasim: fix MAC address configuration
vdpa_sim generates a ramdom MAC address but it is never used by upper
layers because the VIRTIO_NET_F_MAC bit is not set in the features list.

Because of that, virtio-net always regenerates a random MAC address each
time it is loaded whereas the address should only change on vdpa_sim
load/unload.

Fix that by adding VIRTIO_NET_F_MAC in the features list of vdpa_sim.

Fixes: 2c53d0f64c06 ("vdpasim: vDPA device simulator")
Cc: jasowang@redhat.com
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Link: https://lore.kernel.org/r/20201029122050.776445-2-lvivier@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'drivers/vdpa')
-rw-r--r--drivers/vdpa/vdpa_sim/vdpa_sim.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c
index c76f7277cea4..3192ce47e029 100644
--- a/drivers/vdpa/vdpa_sim/vdpa_sim.c
+++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c
@@ -60,7 +60,8 @@ struct vdpasim_virtqueue {
 
 static u64 vdpasim_features = (1ULL << VIRTIO_F_ANY_LAYOUT) |
 			      (1ULL << VIRTIO_F_VERSION_1)  |
-			      (1ULL << VIRTIO_F_ACCESS_PLATFORM);
+			      (1ULL << VIRTIO_F_ACCESS_PLATFORM) |
+			      (1ULL << VIRTIO_NET_F_MAC);
 
 /* State of each vdpasim device */
 struct vdpasim {