diff options
| author | Abhishek Chauhan <quic_abchauha@quicinc.com> | 2024-03-01 12:13:48 -0800 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2024-03-05 13:41:16 +0100 |
| commit | 885c36e59f46375c138de18ff1692f18eff67b7f (patch) | |
| tree | 6ddda3a576714ae664f1afb18d5e8eaba100b302 /net/ipv4 | |
| parent | d35c9659e56edd9e629b54da8ceca062517d3d6c (diff) | |
| download | linux-885c36e59f46375c138de18ff1692f18eff67b7f.tar.gz | |
net: Re-use and set mono_delivery_time bit for userspace tstamp packets
Bridge driver today has no support to forward the userspace timestamp
packets and ends up resetting the timestamp. ETF qdisc checks the
packet coming from userspace and encounters to be 0 thereby dropping
time sensitive packets. These changes will allow userspace timestamps
packets to be forwarded from the bridge to NIC drivers.
Setting the same bit (mono_delivery_time) to avoid dropping of
userspace tstamp packets in the forwarding path.
Existing functionality of mono_delivery_time remains unaltered here,
instead just extended with userspace tstamp support for bridge
forwarding path.
Signed-off-by: Abhishek Chauhan <quic_abchauha@quicinc.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20240301201348.2815102-1-quic_abchauha@quicinc.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/ip_output.c | 1 | ||||
| -rw-r--r-- | net/ipv4/raw.c | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index 1fe794967211e..33f93dc730a33 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -1458,6 +1458,7 @@ struct sk_buff *__ip_make_skb(struct sock *sk, skb->priority = (cork->tos != -1) ? cork->priority: READ_ONCE(sk->sk_priority); skb->mark = cork->mark; skb->tstamp = cork->transmit_time; + skb->mono_delivery_time = !!skb->tstamp; /* * Steal rt from cork.dst to avoid a pair of atomic_inc/atomic_dec * on dst refcount diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c index a82fd102df05a..494a6284bd7ee 100644 --- a/net/ipv4/raw.c +++ b/net/ipv4/raw.c @@ -353,6 +353,7 @@ static int raw_send_hdrinc(struct sock *sk, struct flowi4 *fl4, skb->priority = READ_ONCE(sk->sk_priority); skb->mark = sockc->mark; skb->tstamp = sockc->transmit_time; + skb->mono_delivery_time = !!skb->tstamp; skb_dst_set(skb, &rt->dst); *rtp = NULL; |