Vladimir Oltean <olte...@gmail.com> writes:
> As explained in commit 29d98f54a4fe ("net: enetc: allow hardware
> timestamping on TX queues with tc-etf enabled"), hardware TX
> timestamping requires an skb with skb->tstamp = 0. When a packet is sent
> with SO_TXTIME, the skb->skb_mstamp_ns corrupts the value of skb->tstamp,
> so the drivers need to explicitly reset skb->tstamp to zero after
> consuming the TX time.
>
> Create a helper named skb_txtime_consumed() which does just that. All
> drivers which offload TC_SETUP_QDISC_ETF should implement it, and it
nitpick: to my ears, it seems that you meant "call"/"use" instead of
"implement".
> would make it easier to assess during review whether they do the right
> thing in order to be compatible with hardware timestamping or not.
>
> Suggested-by: Vinicius Costa Gomes <vinicius.go...@intel.com>
> Signed-off-by: Vladimir Oltean <vladimir.olt...@nxp.com>
> ---
Acked-by: Vinicius Costa Gomes <vinicius.go...@intel.com>
Cheers,
--
Vinicius
