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authorEric Dumazet <edumazet@google.com>2018-09-21 08:51:50 -0700
committerDavid S. Miller <davem@davemloft.net>2018-09-21 19:37:59 -0700
commitd3edd06ea8ea9e03de6567fda80b8be57e21a537 (patch)
tree090196833fede243080048ee8d143b3cc83fecd4 /include/linux/skbuff.h
parent9799ccb0e984a5c1311b22a212e7ff96e8b736de (diff)
tcp: provide earliest departure time in skb->tstamp
Switch internal TCP skb->skb_mstamp to skb->skb_mstamp_ns, from usec units to nsec units. Do not clear skb->tstamp before entering IP stacks in TX, so that qdisc or devices can implement pacing based on the earliest departure time instead of socket sk->sk_pacing_rate Packets are fed with tcp_wstamp_ns, and following patch will update tcp_wstamp_ns when both TCP and sch_fq switch to the earliest departure time mechanism. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/skbuff.h')
-rw-r--r--include/linux/skbuff.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index e3a53ca4a9b5..86f337e9a81d 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -689,7 +689,7 @@ struct sk_buff {
union {
ktime_t tstamp;
- u64 skb_mstamp;
+ u64 skb_mstamp_ns; /* earliest departure time */
};
/*
* This is the control buffer. It is free to use for every