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authorWei Wang <weiwan@google.com>2018-07-31 17:46:21 -0700
committerDavid S. Miller <davem@davemloft.net>2018-08-01 09:56:10 -0700
commitba113c3aa79a7f941ac162d05a3620bdc985c58d (patch)
tree6ac064d13a2920d19c52998bb91e138916fccae3 /include
parent984988aa72188453f8c8a42dcf94bba1c57e73aa (diff)
tcp: add data bytes sent stats
Introduce a new TCP stat to record the number of bytes sent (RFC4898 tcpEStatsPerfHCDataOctetsOut) and expose it in both tcp_info (TCP_INFO) and opt_stats (SOF_TIMESTAMPING_OPT_STATS). Signed-off-by: Wei Wang <weiwan@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Neal Cardwell <ncardwell@google.com> Acked-by: Soheil Hassas Yeganeh <soheil@google.com> Acked-by: Yuchung Cheng <ycheng@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/linux/tcp.h3
-rw-r--r--include/uapi/linux/tcp.h4
2 files changed, 6 insertions, 1 deletions
diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index 58a8d7d71354..d0798dcd2cab 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -181,6 +181,9 @@ struct tcp_sock {
u32 data_segs_out; /* RFC4898 tcpEStatsPerfDataSegsOut
* total number of data segments sent.
*/
+ u64 bytes_sent; /* RFC4898 tcpEStatsPerfHCDataOctetsOut
+ * total number of data bytes sent.
+ */
u64 bytes_acked; /* RFC4898 tcpEStatsAppHCThruOctetsAcked
* sum(delta(snd_una)), or how many bytes
* were acked.
diff --git a/include/uapi/linux/tcp.h b/include/uapi/linux/tcp.h
index e3f6ed8a7064..1c70ed287c3b 100644
--- a/include/uapi/linux/tcp.h
+++ b/include/uapi/linux/tcp.h
@@ -235,6 +235,8 @@ struct tcp_info {
__u32 tcpi_delivered;
__u32 tcpi_delivered_ce;
+
+ __u64 tcpi_bytes_sent; /* RFC4898 tcpEStatsPerfHCDataOctetsOut */
};
/* netlink attributes types for SCM_TIMESTAMPING_OPT_STATS */
@@ -257,7 +259,7 @@ enum {
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 */
-
+ TCP_NLA_BYTES_SENT, /* Data bytes sent including retransmission */
};
/* for TCP_MD5SIG socket option */