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net: mvneta: add support for hardware timestamps

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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 <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1uwKHe-00000004glk-3nkJ@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Russell King 2025-09-10 13:50:46 +01:00 committed by Jakub Kicinski
parent dc2f650f7e
commit 903e6d0587
1 changed files with 8 additions and 0 deletions
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8
drivers/net/ethernet/marvell/mvneta.c
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@ -2984,6 +2984,13 @@ static netdev_tx_t mvneta_tx(struct sk_buff *skb, struct net_device *dev)
if (txq->count >= txq->tx_stop_threshold)
netif_tx_stop_queue(nq);
/* This is not really the true transmit point, since we batch
* up several before hitting the hardware, but is the best we
* can do without more complexity to walk the packets in the
* pending section of the transmit queue.
*/
skb_tx_timestamp(skb);
if (!netdev_xmit_more() || netif_xmit_stopped(nq) ||
txq->pending + frags > MVNETA_TXQ_DEC_SENT_MASK)
mvneta_txq_pend_desc_add(pp, txq, frags);
@ -5356,6 +5363,7 @@ static const struct ethtool_ops mvneta_eth_tool_ops = {
.set_link_ksettings = mvneta_ethtool_set_link_ksettings,
.get_wol = mvneta_ethtool_get_wol,
.set_wol = mvneta_ethtool_set_wol,
.get_ts_info = ethtool_op_get_ts_info,
.get_eee = mvneta_ethtool_get_eee,
.set_eee = mvneta_ethtool_set_eee,
};