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authorStanislav Fomichev <sdf@google.com>2019-07-02 09:13:58 -0700
committerDaniel Borkmann <daniel@iogearbox.net>2019-07-03 16:52:01 +0200
commit0357746d1e40a8226f68a42c8d7222a12d7c451f (patch)
tree04c74dbeedd3c9bfcc69565411a1664c0016b4c5 /include/uapi
parent2377b81de52750997726d6d43b4114e5842c4bf9 (diff)
bpf: add dsack_dups/delivered{, _ce} to bpf_tcp_sock
Add more fields to bpf_tcp_sock that might be useful for debugging congestion control issues. Cc: Eric Dumazet <edumazet@google.com> Cc: Priyaranjan Jha <priyarjha@google.com> Cc: Yuchung Cheng <ycheng@google.com> Cc: Soheil Hassas Yeganeh <soheil@google.com> Acked-by: Soheil Hassas Yeganeh <soheil@google.com> Acked-by: Yuchung Cheng <ycheng@google.com> Signed-off-by: Stanislav Fomichev <sdf@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'include/uapi')
-rw-r--r--include/uapi/linux/bpf.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 9cdd0aaeba06..bfb0b1a76684 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -3073,6 +3073,11 @@ struct bpf_tcp_sock {
* sum(delta(snd_una)), or how many bytes
* were acked.
*/
+ __u32 dsack_dups; /* RFC4898 tcpEStatsStackDSACKDups
+ * total number of DSACK blocks received
+ */
+ __u32 delivered; /* Total data packets delivered incl. rexmits */
+ __u32 delivered_ce; /* Like the above but only ECE marked packets */
};
struct bpf_sock_tuple {