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(parent: 948d4f2) | patch
veth: Avoid drops by oversized packets when XDP is enabled
authorToshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Fri, 3 Aug 2018 07:58:11 +0000 (16:58 +0900)
committerDaniel Borkmann <daniel@iogearbox.net>
Fri, 10 Aug 2018 14:12:20 +0000 (16:12 +0200)
commitdc2248220a4aa61560c95aca98d4162095bd7e8a
tree97e3beb255faf4f6d15ce3dc11acbfc0f0100e56tree | snapshot
parent948d4f214fde43743c57aae0c708bff44f6345f2commit | diff
veth: Avoid drops by oversized packets when XDP is enabled

Oversized packets including GSO packets can be dropped if XDP is
enabled on receiver side, so don't send such packets from peer.

Drop TSO and SCTP fragmentation features so that veth devices themselves
segment packets with XDP enabled. Also cap MTU accordingly.

v4:
- Don't auto-adjust MTU but cap max MTU.

Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
drivers/net/veth.c diff | blob | history
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