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bpf: add dsack_dups/delivered{, _ce} to bpf_tcp_sock

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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>
This commit is contained in:
Stanislav Fomichev 2019-07-02 09:13:58 -07:00 • committed by Daniel Borkmann
parent 2377b81de5
commit 0357746d1e
2 changed files with 15 additions and 1 deletions
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5
include/uapi/linux/bpf.h
View file

@ -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 {