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| author |   Alex Williamson <alex.williamson@hp.com> | 2009-01-25 18:06:26 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2009-01-25 18:06:26 -0800 |
| commit | e918085aaff34086e265f825dd469926b1aec4a4 (patch) | |
| tree | cdd8c27d63026efb387ce585dd738b299f9f3479 /net | |
| parent | lcs: fix compilation for !CONFIG_IP_MULTICAST (diff) | |
| download | linux-dev-e918085aaff34086e265f825dd469926b1aec4a4.tar.xz linux-dev-e918085aaff34086e265f825dd469926b1aec4a4.zip | |
virtio_net: Fix MAX_PACKET_LEN to support 802.1Q VLANs
802.1Q expanded the maximum ethernet frame size by 4 bytes for the
VLAN tag. We're not taking this into account in virtio_net, which
means the buffers we provide to the backend in the virtqueue RX ring
aren't big enough to hold a full MTU VLAN packet. For QEMU/KVM,
this results in the backend exiting with a packet truncation error.
Signed-off-by: Alex Williamson <alex.williamson@hp.com>
Acked-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions