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4 Commits

Author SHA1 Message Date
Michal Rostecki
c87f60a77d samples: bpf: Do not define bpf_printk macro 
The bpf_printk macro was moved to bpf_helpers.h which is included in all
example programs.

Signed-off-by: Michal Rostecki <mrostecki@opensuse.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
 2019-05-24 13:47:17 -07:00
Jakub Kicinski
ea9b636201 samples: bpf: remove load_sock_ops in favour of bpftool 
bpftool can do all the things load_sock_ops used to do, and more.
Point users to bpftool instead of maintaining this sample utility.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
 2019-03-01 00:53:45 +01:00
Lawrence Brakmo
e1853319fc bpf: Fix tcp_iw_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
7bc62e2854 bpf: Sample BPF program to set initial cwnd 
Sample BPF program that assumes hosts are far away (i.e. large RTTs)
and sets initial cwnd and initial receive window to 40 packets,
send and receive buffers to 1.5MB.

In practice there would be a test to insure the hosts are actually
far enough away.

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