diff options
| author | Abhishek Chauhan <quic_abchauha@quicinc.com> | 2024-03-01 23:13:48 +0300 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2024-03-05 15:41:16 +0300 |
| commit | 885c36e59f46375c138de18ff1692f18eff67b7f (patch) | |
| tree | 6ddda3a576714ae664f1afb18d5e8eaba100b302 /include/linux/skbuff.h | |
| parent | d35c9659e56edd9e629b54da8ceca062517d3d6c (diff) | |
| download | linux-885c36e59f46375c138de18ff1692f18eff67b7f.tar.xz | |
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 'include/linux/skbuff.h')
| -rw-r--r-- | include/linux/skbuff.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index d577e0bee18d..3013355b63f5 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -822,9 +822,9 @@ typedef unsigned char *sk_buff_data_t; * @decrypted: Decrypted SKB * @slow_gro: state present at GRO time, slower prepare step required * @mono_delivery_time: When set, skb->tstamp has the - * delivery_time in mono clock base (i.e. EDT). Otherwise, the - * skb->tstamp has the (rcv) timestamp at ingress and - * delivery_time at egress. + * delivery_time in mono clock base (i.e., EDT) or a clock base chosen + * by SO_TXTIME. If zero, skb->tstamp has the (rcv) timestamp at + * ingress. * @napi_id: id of the NAPI struct this skb came from * @sender_cpu: (aka @napi_id) source CPU in XPS * @alloc_cpu: CPU which did the skb allocation. |