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| author | Yuchung Cheng <ycheng@google.com> | 2018-04-17 23:18:49 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-04-19 13:05:16 -0400 |
| commit | feb5f2ec646483fb66f9ad7218b1aad2a93a2a5c (patch) | |
| tree | cc1b3d9495eeab4743e7086ff22a926854d79823 /include/uapi/linux/tcp.h | |
| parent | e21db6f69a95b846ff04e31fe0a86004cbd000d7 (diff) | |
| download | linux-feb5f2ec646483fb66f9ad7218b1aad2a93a2a5c.tar.gz linux-feb5f2ec646483fb66f9ad7218b1aad2a93a2a5c.tar.bz2 linux-feb5f2ec646483fb66f9ad7218b1aad2a93a2a5c.zip | |
tcp: export packets delivery info
Export data delivered and delivered with CE marks to
1) SNMP TCPDelivered and TCPDeliveredCE
2) getsockopt(TCP_INFO)
3) Timestamping API SOF_TIMESTAMPING_OPT_STATS
Note that for SCM_TSTAMP_ACK, the delivery info in
SOF_TIMESTAMPING_OPT_STATS is reported before the info
was fully updated on the ACK.
These stats help application monitor TCP delivery and ECN status
on per host, per connection, even per message level.
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Reviewed-by: Neal Cardwell <ncardwell@google.com>
Reviewed-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/uapi/linux/tcp.h')
| -rw-r--r-- | include/uapi/linux/tcp.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/uapi/linux/tcp.h b/include/uapi/linux/tcp.h index 560374c978f9..379b08700a54 100644 --- a/include/uapi/linux/tcp.h +++ b/include/uapi/linux/tcp.h @@ -224,6 +224,9 @@ struct tcp_info { __u64 tcpi_busy_time; /* Time (usec) busy sending data */ __u64 tcpi_rwnd_limited; /* Time (usec) limited by receive window */ __u64 tcpi_sndbuf_limited; /* Time (usec) limited by send buffer */ + + __u32 tcpi_delivered; + __u32 tcpi_delivered_ce; }; /* netlink attributes types for SCM_TIMESTAMPING_OPT_STATS */ @@ -244,6 +247,8 @@ enum { TCP_NLA_SNDQ_SIZE, /* Data (bytes) pending in send queue */ TCP_NLA_CA_STATE, /* ca_state of socket */ TCP_NLA_SND_SSTHRESH, /* Slow start size threshold */ + TCP_NLA_DELIVERED, /* Data pkts delivered incl. out-of-order */ + TCP_NLA_DELIVERED_CE, /* Like above but only ones w/ CE marks */ }; |