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bpf: Adds support for setting initial cwnd

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Adds a new bpf_setsockopt for TCP sockets, TCP_BPF_IW, which sets the
initial congestion window. This can be used when the hosts are far
apart (large RTTs) and it is safe to start with a large inital cwnd.

Signed-off-by: Lawrence Brakmo <brakmo@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Lawrence Brakmo 2017-06-30 20:02:51 -07:00 • committed by David S. Miller
parent bb56d4449d
commit fc7478103c
2 changed files with 19 additions and 1 deletions
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2
include/uapi/linux/bpf.h
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@ -783,4 +783,6 @@ enum {
*/
};
#define TCP_BPF_IW 1001 /* Set TCP initial congestion window */
#endif /* _UAPI__LINUX_BPF_H__ */