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| author | Michael Brown | 2017-01-23 17:32:54 +0100 |
|---|---|---|
| committer | Michael Brown | 2017-01-23 17:32:54 +0100 |
| commit | 4e85b2708fa0c8854c722302ff9bf00ecdbcccc8 (patch) | |
| tree | 3e2fd685189aef8f258e38986d9a96b1a8412c52 /src/drivers/net/virtio-net.h | |
| parent | [cloud] Add ability to retrieve Google Compute Engine metadata (diff) | |
| download | ipxe-4e85b2708fa0c8854c722302ff9bf00ecdbcccc8.tar.gz ipxe-4e85b2708fa0c8854c722302ff9bf00ecdbcccc8.tar.xz ipxe-4e85b2708fa0c8854c722302ff9bf00ecdbcccc8.zip | |
[virtio] Use host-specified MTU when available
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/drivers/net/virtio-net.h')
| -rw-r--r-- | src/drivers/net/virtio-net.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/drivers/net/virtio-net.h b/src/drivers/net/virtio-net.h index c2b4a17cc..ff58d3ef1 100644 --- a/src/drivers/net/virtio-net.h +++ b/src/drivers/net/virtio-net.h @@ -4,6 +4,7 @@ /* 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_GSO 6 /* Host handles pkts w/ any GSO type */ #define VIRTIO_NET_F_GUEST_TSO4 7 /* Guest can handle TSOv4 in. */ @@ -25,6 +26,15 @@ struct virtio_net_config { /* The config defining mac address (if VIRTIO_NET_F_MAC) */ u8 mac[6]; + /* See VIRTIO_NET_F_STATUS and VIRTIO_NET_S_* above */ + u16 status; + /* Maximum number of each of transmit and receive queues; + * see VIRTIO_NET_F_MQ and VIRTIO_NET_CTRL_MQ. + * Legal values are between 1 and 0x8000 + */ + u16 max_virtqueue_pairs; + /* Default maximum transmit unit advice */ + u16 mtu; } __attribute__((packed)); /* This is the first element of the scatter-gather list. If you don't |