* [PATCH net-next 1/2] tcp: add snd_ssthresh stat in SCM_TIMESTAMPING_OPT_STATS
@ 2018-03-16 17:51 Yousuk Seung
2018-03-16 18:04 ` Eric Dumazet
2018-03-16 19:08 ` David Miller
0 siblings, 2 replies; 3+ messages in thread
From: Yousuk Seung @ 2018-03-16 17:51 UTC (permalink / raw)
To: David Miller
Cc: netdev, Yousuk Seung, Neal Cardwell, Priyaranjan Jha,
Soheil Hassas Yeganeh, Yuchung Cheng
This patch adds TCP_NLA_SND_SSTHRESH stat into SCM_TIMESTAMPING_OPT_STATS
that reports tcp_sock.snd_ssthresh.
Signed-off-by: Yousuk Seung <ysseung@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Priyaranjan Jha <priyarjha@google.com>
Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
---
include/uapi/linux/tcp.h | 1 +
net/ipv4/tcp.c | 3 ++-
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/include/uapi/linux/tcp.h b/include/uapi/linux/tcp.h
index 4c0ae0faf7ca..560374c978f9 100644
--- a/include/uapi/linux/tcp.h
+++ b/include/uapi/linux/tcp.h
@@ -243,6 +243,7 @@ enum {
TCP_NLA_DELIVERY_RATE_APP_LMT, /* delivery rate application limited ? */
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 */
};
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index fb350f740f69..e553f84bde83 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -3031,7 +3031,7 @@ struct sk_buff *tcp_get_timestamping_opt_stats(const struct sock *sk)
u32 rate;
stats = alloc_skb(7 * nla_total_size_64bit(sizeof(u64)) +
- 4 * nla_total_size(sizeof(u32)) +
+ 5 * nla_total_size(sizeof(u32)) +
3 * nla_total_size(sizeof(u8)), GFP_ATOMIC);
if (!stats)
return NULL;
@@ -3061,6 +3061,7 @@ struct sk_buff *tcp_get_timestamping_opt_stats(const struct sock *sk)
nla_put_u8(stats, TCP_NLA_RECUR_RETRANS, inet_csk(sk)->icsk_retransmits);
nla_put_u8(stats, TCP_NLA_DELIVERY_RATE_APP_LMT, !!tp->rate_app_limited);
+ nla_put_u32(stats, TCP_NLA_SND_SSTHRESH, tp->snd_ssthresh);
nla_put_u32(stats, TCP_NLA_SNDQ_SIZE, tp->write_seq - tp->snd_una);
nla_put_u8(stats, TCP_NLA_CA_STATE, inet_csk(sk)->icsk_ca_state);
--
2.16.2.804.g6dcf76e118-goog
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH net-next 1/2] tcp: add snd_ssthresh stat in SCM_TIMESTAMPING_OPT_STATS
2018-03-16 17:51 [PATCH net-next 1/2] tcp: add snd_ssthresh stat in SCM_TIMESTAMPING_OPT_STATS Yousuk Seung
@ 2018-03-16 18:04 ` Eric Dumazet
2018-03-16 19:08 ` David Miller
1 sibling, 0 replies; 3+ messages in thread
From: Eric Dumazet @ 2018-03-16 18:04 UTC (permalink / raw)
To: Yousuk Seung, David Miller
Cc: netdev, Neal Cardwell, Priyaranjan Jha, Soheil Hassas Yeganeh,
Yuchung Cheng
On 03/16/2018 10:51 AM, Yousuk Seung wrote:
> This patch adds TCP_NLA_SND_SSTHRESH stat into SCM_TIMESTAMPING_OPT_STATS
> that reports tcp_sock.snd_ssthresh.
>
Reviewed-by: Eric Dumazet <edumazet@google.com>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH net-next 1/2] tcp: add snd_ssthresh stat in SCM_TIMESTAMPING_OPT_STATS
2018-03-16 17:51 [PATCH net-next 1/2] tcp: add snd_ssthresh stat in SCM_TIMESTAMPING_OPT_STATS Yousuk Seung
2018-03-16 18:04 ` Eric Dumazet
@ 2018-03-16 19:08 ` David Miller
1 sibling, 0 replies; 3+ messages in thread
From: David Miller @ 2018-03-16 19:08 UTC (permalink / raw)
To: ysseung; +Cc: netdev, ncardwell, priyarjha, soheil, ycheng
From: Yousuk Seung <ysseung@google.com>
Date: Fri, 16 Mar 2018 10:51:07 -0700
> This patch adds TCP_NLA_SND_SSTHRESH stat into SCM_TIMESTAMPING_OPT_STATS
> that reports tcp_sock.snd_ssthresh.
>
> Signed-off-by: Yousuk Seung <ysseung@google.com>
> Signed-off-by: Neal Cardwell <ncardwell@google.com>
> Signed-off-by: Priyaranjan Jha <priyarjha@google.com>
> Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com>
> Signed-off-by: Yuchung Cheng <ycheng@google.com>
Applied.
Please submit future patch series with a proper cover letter.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2018-03-16 17:51 [PATCH net-next 1/2] tcp: add snd_ssthresh stat in SCM_TIMESTAMPING_OPT_STATS Yousuk Seung
2018-03-16 18:04 ` Eric Dumazet
2018-03-16 19:08 ` David Miller
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