tree a2ec9ff230c93bab071e13798899a9040aaf76e0
parent a71c9a1c779f2499fb2afc0553e543f18aff6edf
author Michael S. Tsirkin <mst@redhat.com> 1488932065 +0200
committer Michael S. Tsirkin <mst@redhat.com> 1491572339 +0300

virtio_net: enable big packets for large MTU values

If one enables e.g. jumbo frames without mergeable
buffers, packets won't fit in 1500 byte buffers
we use. Switch to big packet mode instead.
TODO: make sizing more exact, possibly extend small
packet mode to use larger pages.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>