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net: gianfar: add support for software TX timestamping

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These are required by certain network profiling applications in order to
measure delays.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Reviewed-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Link: https://lore.kernel.org/r/20220629181335.3800821-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Vladimir Oltean 2022-06-29 21:13:35 +03:00 committed by Jakub Kicinski
parent 5a24389457
commit c7e5c423cb
2 changed files with 6 additions and 1 deletions
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1
drivers/net/ethernet/freescale/gianfar.c
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@ -1944,6 +1944,7 @@ static netdev_tx_t gfar_start_xmit(struct sk_buff *skb, struct net_device *dev)
lstatus |= BD_LFLAG(TXBD_CRC | TXBD_READY) | skb_headlen(skb);
}
skb_tx_timestamp(skb);
netdev_tx_sent_queue(txq, bytes_sent);
gfar_wmb();

6
drivers/net/ethernet/freescale/gianfar_ethtool.c
View File

@ -1457,6 +1457,7 @@ static int gfar_get_ts_info(struct net_device *dev,
if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER)) {
info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE |
SOF_TIMESTAMPING_TX_SOFTWARE |
SOF_TIMESTAMPING_SOFTWARE;
return 0;
}
@ -1474,7 +1475,10 @@ static int gfar_get_ts_info(struct net_device *dev,
info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
SOF_TIMESTAMPING_RX_HARDWARE |
SOF_TIMESTAMPING_RAW_HARDWARE;
SOF_TIMESTAMPING_RAW_HARDWARE |
SOF_TIMESTAMPING_RX_SOFTWARE |
SOF_TIMESTAMPING_TX_SOFTWARE |
SOF_TIMESTAMPING_SOFTWARE;
info->tx_types = (1 << HWTSTAMP_TX_OFF) |
(1 << HWTSTAMP_TX_ON);
info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |