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2 Commits

Author SHA1 Message Date
Lawrence Brakmo
03e982eed4 bpf: Fix tcp_clamp_kern.c sample program 
The program was returning -1 in some cases which is not allowed
by the verifier any longer.

Fixes: 390ee7e29f ("bpf: enforce return code for cgroup-bpf programs")
Signed-off-by: Lawrence Brakmo <brakmo@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-11-11 15:52:41 +09:00
Lawrence Brakmo
6c4a01b278 bpf: Sample bpf program to set sndcwnd clamp 
Sample BPF program, tcp_clamp_kern.c, to demostrate the use
of setting the sndcwnd clamp. This program assumes that if the
first 5.5 bytes of the host's IPv6 addresses are the same, then
the hosts are in the same datacenter and sets sndcwnd clamp to
100 packets, SYN and SYN-ACK RTOs to 10ms and send/receive buffer
sizes to 150KB.

Signed-off-by: Lawrence Brakmo <brakmo@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-07-01 16:15:14 -07:00