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| author |   Thomas Graf <tgraf@suug.ch> | 2013-07-25 18:12:18 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2013-07-27 22:16:36 -0700 |
| commit | c26bf4a51308c85a6f97628253b99767a84ff90a (patch) | |
| tree | 5c59f55f34fe58225fd37789ce14689d2c4005b9 /include/net | |
| parent | VSOCK: Move af_vsock.h and vsock_addr.h to include/net (diff) | |
| download | linux-dev-c26bf4a51308c85a6f97628253b99767a84ff90a.tar.xz linux-dev-c26bf4a51308c85a6f97628253b99767a84ff90a.zip | |
pktgen: Add UDPCSUM flag to support UDP checksums
UDP checksums are optional, hence pktgen has been omitting them in
favour of performance. The optional flag UDPCSUM enables UDP
checksumming. If the output device supports hardware checksumming
the skb is prepared and marked CHECKSUM_PARTIAL, otherwise the
checksum is generated in software.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Ben Greear <greearb@candelatech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/udp.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/udp.h b/include/net/udp.h index 74c10ec5e74f..ef2e0b7843a0 100644 --- a/include/net/udp.h +++ b/include/net/udp.h @@ -183,6 +183,7 @@ extern int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, size_t len); extern int udp_push_pending_frames(struct sock *sk); extern void udp_flush_pending_frames(struct sock *sk); +extern void udp4_hwcsum(struct sk_buff *skb, __be32 src, __be32 dst); extern int udp_rcv(struct sk_buff *skb); extern int udp_ioctl(struct sock *sk, int cmd, unsigned long arg); extern int udp_disconnect(struct sock *sk, int flags); |