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| author | Michał Mirosław <mirq-linux@rere.qmqm.pl> | 2011-04-19 10:13:10 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-04-20 12:30:45 +0400 |
| commit | 882553752196605bf27057e7adb298ecae8058c4 (patch) | |
| tree | b8c0cf62ff19b1982ecb42a8c5e877266453f405 /net/sctp | |
| parent | 47103041e91794acdbc6165da0ae288d844c820b (diff) | |
| download | linux-882553752196605bf27057e7adb298ecae8058c4.tar.xz | |
net: tun: convert to hw_features
This changes offload setting behaviour to what I think is correct:
- offloads set via ethtool mean what admin wants to use (by default
he wants 'em all)
- offloads set via ioctl() mean what userspace is expecting to get
(this limits which admin wishes are granted)
- TUN_NOCHECKSUM is ignored, as it might cause broken packets when
forwarded (ip_summed == CHECKSUM_UNNECESSARY means that checksum
was verified, not that it can be ignored)
If TUN_NOCHECKSUM is implemented, it should set skb->csum_* and
skb->ip_summed (= CHECKSUM_PARTIAL) for known protocols and let others
be verified by kernel when necessary.
TUN_NOCHECKSUM handling was introduced by commit
f43798c27684ab925adde7d8acc34c78c6e50df8:
tun: Allow GSO using virtio_net_hdr
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp')
0 files changed, 0 insertions, 0 deletions