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if_vtnet: Support VIRTIO_NET_F_MTU
authorBryan Venteicher <bryanv@FreeBSD.org>
Tue, 19 Jan 2021 04:55:24 +0000 (04:55 +0000)
committerBryan Venteicher <bryanv@FreeBSD.org>
Tue, 19 Jan 2021 04:55:24 +0000 (04:55 +0000)
commitaabdf5b6e8e82cda0ca2064ef78e2724bd486e7e
tree3e55060223de1ab18b35121a6588754a211388f4tree | snapshot
parentfa7ca1e332414a8c5e05aff3e6bb17854b91cec6commit | diff
if_vtnet: Support VIRTIO_NET_F_MTU

This feature lets the guest driver know the maximum MTU size
supported by the host device. If set, use this to limit the
acceptable MTUs, and improve how the receive mbuf cluster size
then is selected.

Reviewed by: grehan (mentor)
Differential Revision: https://reviews.freebsd.org/D27907
sys/dev/virtio/network/if_vtnet.c diff | blob | history
sys/dev/virtio/network/if_vtnetvar.h diff | blob | history
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