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| author | Akihiko Odaki <akihiko.odaki@daynix.com> | 2025-01-08 21:13:29 +0900 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2025-04-02 12:44:47 -0400 |
| commit | c17ad4b11bd268a35506cd976884562df6ca69d7 (patch) | |
| tree | c2b7f182922a6b9e47fa506c62b634eb2cd76e68 | |
| parent | b876e721f1c939f3e83ac85bd3c1c2821e12b3fa (diff) | |
| download | qemu-c17ad4b11bd268a35506cd976884562df6ca69d7.zip qemu-c17ad4b11bd268a35506cd976884562df6ca69d7.tar.gz qemu-c17ad4b11bd268a35506cd976884562df6ca69d7.tar.bz2 | |
virtio-net: Fix num_buffers for version 1
The specification says the device MUST set num_buffers to 1 if
VIRTIO_NET_F_MRG_RXBUF has not been negotiated.
Fixes: df91055db5c9 ("virtio-net: enable virtio 1.0")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20250108-buffers-v1-1-a0c85ff31aeb@daynix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Lei Yang <leiyang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| -rw-r--r-- | hw/net/virtio-net.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c index de87cfa..340c6b6 100644 --- a/hw/net/virtio-net.c +++ b/hw/net/virtio-net.c @@ -1999,6 +1999,8 @@ static ssize_t virtio_net_receive_rcu(NetClientState *nc, const uint8_t *buf, offsetof(typeof(hdr), virtio_net.hdr.num_buffers), sizeof(hdr.virtio_net.hdr.num_buffers)); + } else { + hdr.virtio_net.hdr.num_buffers = cpu_to_le16(1); } guest_offset = n->has_vnet_hdr ? |