[PATCH net-next 04/10] net/mlx5e: Add data direct ethtool private flag
flat view
COOLING5d
From: Tariq Toukan <tariqt@nvidia.com>
Date: 2026-10-08 13:29:29
Also in:
linux-rdma, lkml
Subsystem:
mellanox ethernet driver (mlx5e), mellanox mlx5 core vpi driver, networking drivers, the rest · Maintainers:
Saeed Mahameed, Tariq Toukan, Mark Bloch, Leon Romanovsky, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Dragos Tatulea <dtatulea@nvidia.com> This patch adds the data direct private flag infrastructure. The MLX5E_PFLAG_DATA_DIRECT flag is needed in the follow-up patches to detect the configuration of data direct from the user side. For now the flag can't be actually set. This will be implemented in a follow-up patch once all pieces are put together. This patch doesn't introduce any functional changes. Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> --- drivers/net/ethernet/mellanox/mlx5/core/en.h | 1 + drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c | 6 ++++++ 2 files changed, 7 insertions(+)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h
index 000493f42912..c5bbe5adea45 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h@@ -264,6 +264,7 @@ enum mlx5e_priv_flag { MLX5E_PFLAG_XDP_TX_MPWQE, MLX5E_PFLAG_SKB_TX_MPWQE, MLX5E_PFLAG_TX_PORT_TS, + MLX5E_PFLAG_DATA_DIRECT, MLX5E_NUM_PFLAGS, /* Keep last */ };
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
index 261c466a4d36..b3eced1dd43f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c@@ -2400,6 +2400,11 @@ static int set_pflag_tx_port_ts(struct net_device *netdev, bool enable) return err; } +static int set_pflag_data_direct(struct net_device *netdev, bool enable) +{ + return -EOPNOTSUPP; +} + static const struct pflag_desc mlx5e_priv_flags[MLX5E_NUM_PFLAGS] = { { "rx_cqe_moder", set_pflag_rx_cqe_based_moder }, { "tx_cqe_moder", set_pflag_tx_cqe_based_moder },
@@ -2409,6 +2414,7 @@ static const struct pflag_desc mlx5e_priv_flags[MLX5E_NUM_PFLAGS] = { { "xdp_tx_mpwqe", set_pflag_xdp_tx_mpwqe }, { "skb_tx_mpwqe", set_pflag_skb_tx_mpwqe }, { "tx_port_ts", set_pflag_tx_port_ts }, + { "data_direct", set_pflag_data_direct }, }; static int mlx5e_handle_pflag(struct net_device *netdev,
--
2.44.0