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tcp: add related fields into SCM_TIMESTAMPING_OPT_STATS

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Add the following stats into SCM_TIMESTAMPING_OPT_STATS control msg:
    TCP_NLA_PACING_RATE
    TCP_NLA_DELIVERY_RATE
    TCP_NLA_SND_CWND
    TCP_NLA_REORDERING
    TCP_NLA_MIN_RTT
    TCP_NLA_RECUR_RETRANS
    TCP_NLA_DELIVERY_RATE_APP_LMT

Signed-off-by: Wei Wang <weiwan@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Wei Wang 2017-07-28 10:28:21 -07:00 • committed by David S. Miller
parent 0263598c77
commit bb7c19f960
2 changed files with 27 additions and 1 deletions
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8
include/uapi/linux/tcp.h
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@ -231,6 +231,14 @@ enum {
TCP_NLA_SNDBUF_LIMITED, /* Time (usec) limited by send buffer */
TCP_NLA_DATA_SEGS_OUT, /* Data pkts sent including retransmission */
TCP_NLA_TOTAL_RETRANS, /* Data pkts retransmitted */
TCP_NLA_PACING_RATE, /* Pacing rate in bytes per second */
TCP_NLA_DELIVERY_RATE, /* Delivery rate in bytes per second */
TCP_NLA_SND_CWND, /* Sending congestion window */
TCP_NLA_REORDERING, /* Reordering metric */
TCP_NLA_MIN_RTT, /* minimum RTT */
TCP_NLA_RECUR_RETRANS, /* Recurring retransmits for the current pkt */
TCP_NLA_DELIVERY_RATE_APP_LMT, /* delivery rate application limited ? */
};
/* for TCP_MD5SIG socket option */