net/virtio: support MTU feature

[dpdk.git] / drivers / net / virtio / virtio_pci.h

diff --git a/drivers/net/virtio/virtio_pci.h b/drivers/net/virtio/virtio_pci.h
index 1302556..0362acd 100644 (file)
--- a/drivers/net/virtio/virtio_pci.h
+++ b/drivers/net/virtio/virtio_pci.h
@@ -106,6 +106,7 @@ struct virtnet_ctl;
 /* The feature bitmap for virtio net */
 #define VIRTIO_NET_F_CSUM      0       /* Host handles pkts w/ partial csum */
 #define VIRTIO_NET_F_GUEST_CSUM        1       /* Guest handles pkts w/ partial csum */
+#define VIRTIO_NET_F_MTU       3       /* Initial MTU advice. */
 #define VIRTIO_NET_F_MAC       5       /* Host has given MAC address. */
 #define VIRTIO_NET_F_GUEST_TSO4        7       /* Guest can handle TSOv4 in. */
 #define VIRTIO_NET_F_GUEST_TSO6        8       /* Guest can handle TSOv6 in. */
@@ -252,6 +253,7 @@ struct virtio_hw {
        uint64_t    req_guest_features;
        uint64_t    guest_features;
        uint32_t    max_queue_pairs;
+       uint16_t        max_mtu;
        uint16_t    vtnet_hdr_size;
        uint8_t     vlan_strip;
        uint8_t     use_msix;
@@ -297,6 +299,7 @@ struct virtio_net_config {
        /* See VIRTIO_NET_F_STATUS and VIRTIO_NET_S_* above */
        uint16_t   status;
        uint16_t   max_virtqueue_pairs;
+       uint16_t   mtu;
 } __attribute__((packed));
 
 /*