Messages in this thread Patch in this message | | | From | Aaron Conole <> | Subject | [RFC -next 1/2] virtio: Start the advised MTU feature support | Date | Thu, 10 Mar 2016 09:28:11 -0500 |
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This commit adds the feature bit and associated mtu device entry for the virtio network device. Future commits will make use of these bits to support negotiated MTU.
Signed-off-by: Aaron Conole <aconole@redhat.com> --- include/uapi/linux/virtio_net.h | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/include/uapi/linux/virtio_net.h b/include/uapi/linux/virtio_net.h index ec32293..41a6a01 100644 --- a/include/uapi/linux/virtio_net.h +++ b/include/uapi/linux/virtio_net.h @@ -55,6 +55,7 @@ #define VIRTIO_NET_F_MQ 22 /* Device supports Receive Flow * Steering */ #define VIRTIO_NET_F_CTRL_MAC_ADDR 23 /* Set MAC address */ +#define VIRTIO_NET_F_MTU 25 /* Device supports Default MTU Negotiation */ #ifndef VIRTIO_NET_NO_LEGACY #define VIRTIO_NET_F_GSO 6 /* Host handles pkts w/ any GSO type */ @@ -73,6 +74,8 @@ struct virtio_net_config { * Legal values are between 1 and 0x8000 */ __u16 max_virtqueue_pairs; + /* Default maximum transmit unit advice */ + __u16 mtu; } __attribute__((packed)); /* -- 2.5.0
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