diff options
| author | Eric Dumazet <edumazet@google.com> | 2014-02-13 14:27:40 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-02-14 16:09:43 -0500 |
| commit | 977cb0ecf82eb6d15562573c31edebf90db35163 (patch) | |
| tree | 584f1ea124a3788792420d2010693ea7955a7a72 | |
| parent | 1c213bd24ad04f4430031d20d740d7783162b099 (diff) | |
tcp: add pacing_rate information into tcp_info
Add two new fields to struct tcp_info, to report sk_pacing_rate
and sk_max_pacing_rate to monitoring applications, as ss from iproute2.
User exported fields are 64bit, even if kernel is currently using 32bit
fields.
lpaa5:~# ss -i
..
skmem:(r0,rb357120,t0,tb2097152,f1584,w1980880,o0,bl0) ts sack cubic
wscale:6,6 rto:400 rtt:0.875/0.75 mss:1448 cwnd:1 ssthresh:12 send
13.2Mbps pacing_rate 3336.2Mbps unacked:15 retrans:1/5448 lost:15
rcv_space:29200
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/uapi/linux/tcp.h | 3 | ||||
| -rw-r--r-- | net/ipv4/tcp.c | 5 |
2 files changed, 8 insertions, 0 deletions
diff --git a/include/uapi/linux/tcp.h b/include/uapi/linux/tcp.h index 377f1e59411d..3b9718328d8b 100644 --- a/include/uapi/linux/tcp.h +++ b/include/uapi/linux/tcp.h @@ -186,6 +186,9 @@ struct tcp_info { __u32 tcpi_rcv_space; __u32 tcpi_total_retrans; + + __u64 tcpi_pacing_rate; + __u64 tcpi_max_pacing_rate; }; /* for TCP_MD5SIG socket option */ diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 9f3a2db9109e..bed379c7abcd 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -2794,6 +2794,11 @@ void tcp_get_info(const struct sock *sk, struct tcp_info *info) info->tcpi_rcv_space = tp->rcvq_space.space; info->tcpi_total_retrans = tp->total_retrans; + + info->tcpi_pacing_rate = sk->sk_pacing_rate != ~0U ? + sk->sk_pacing_rate : ~0ULL; + info->tcpi_max_pacing_rate = sk->sk_max_pacing_rate != ~0U ? + sk->sk_max_pacing_rate : ~0ULL; } EXPORT_SYMBOL_GPL(tcp_get_info); |