Subject: Re: [PATCH RFC net-next 1/5] net: mvpp2: add support for hardware timestamps

From: "Russell King (Oracle)" <[email-masked]>
Date: Fri, 11 Apr 2025 22:29:43 +0100

On Fri, Apr 11, 2025 at 10:26:31PM +0100, Russell King wrote:
> Add support for hardware timestamps in (e.g.) the PHY by calling
> skb_tx_timestamp() as close as reasonably possible to the point that
> the hardware is instructed to send the queued packets.
> 
> Signed-off-by: Russell King <[email-masked]>

This patch dates from prior to me joining Oracle, and is unchanged
apart from normal rebasing.

> ---
>  drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
> index 416a926a8281..e3f8aa139d1e 100644
> --- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
> +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
> @@ -4439,6 +4439,8 @@ static netdev_tx_t mvpp2_tx(struct sk_buff *skb, struct net_device *dev)
>  		txq_pcpu->count += frags;
>  		aggr_txq->count += frags;
>  
> +		skb_tx_timestamp(skb);
> +
>  		/* Enable transmit */
>  		wmb();
>  		mvpp2_aggr_txq_pend_desc_add(port, frags);
> -- 
> 2.30.2
> 
> 

-- 
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