net: mlx4: add SOF_TIMESTAMPING_TX_SOFTWARE flag when getting ts info

[ Upstream commit b86bcfee30576b752302c55693fff97242b35dfd ]

As mlx4 has implemented skb_tx_timestamp() in mlx4_en_xmit(), the
SOFTWARE flag is surely needed when users are trying to get timestamp
information.

Signed-off-by: Jason Xing <kernelxing@tencent.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20250510093442.79711-1-kerneljasonxing@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
index 962851000ace44e2fbc83500ea67e5aa3e4f94c1..7cb4dde12b92689872a77f7d0f91f5c7334f1f43 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
@@ -1905,6 +1905,7 @@ static int mlx4_en_get_ts_info(struct net_device *dev,
        if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS) {
                info->so_timestamping |=
                        SOF_TIMESTAMPING_TX_HARDWARE |
+                       SOF_TIMESTAMPING_TX_SOFTWARE |
                        SOF_TIMESTAMPING_RX_HARDWARE |
                        SOF_TIMESTAMPING_RAW_HARDWARE;