[PATCH net-next V9 2/5] net/mlx5: Add no-op implementation for setting tc-bw on rate objects

From: Tariq Toukan
Date: Fri May 09 2025 - 01:50:40 EST


From: Carolina Jubran <cjubran@xxxxxxxxxx>

Introduce `mlx5_esw_devlink_rate_node_tc_bw_set()` and
`mlx5_esw_devlink_rate_leaf_tc_bw_set()` with no-op logic.

Future patches will add support for setting traffic class bandwidth
on rate objects.

Signed-off-by: Carolina Jubran <cjubran@xxxxxxxxxx>
Reviewed-by: Cosmin Ratiu <cratiu@xxxxxxxxxx>
Signed-off-by: Tariq Toukan <tariqt@xxxxxxxxxx>
---
.../net/ethernet/mellanox/mlx5/core/devlink.c | 2 ++
.../net/ethernet/mellanox/mlx5/core/esw/qos.c | 20 +++++++++++++++++++
.../net/ethernet/mellanox/mlx5/core/esw/qos.h | 8 ++++++++
3 files changed, 30 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/devlink.c b/drivers/net/ethernet/mellanox/mlx5/core/devlink.c
index 73cd74644378..47d3acd011cf 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/devlink.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/devlink.c
@@ -323,6 +323,8 @@ static const struct devlink_ops mlx5_devlink_ops = {
.eswitch_encap_mode_get = mlx5_devlink_eswitch_encap_mode_get,
.rate_leaf_tx_share_set = mlx5_esw_devlink_rate_leaf_tx_share_set,
.rate_leaf_tx_max_set = mlx5_esw_devlink_rate_leaf_tx_max_set,
+ .rate_leaf_tc_bw_set = mlx5_esw_devlink_rate_leaf_tc_bw_set,
+ .rate_node_tc_bw_set = mlx5_esw_devlink_rate_node_tc_bw_set,
.rate_node_tx_share_set = mlx5_esw_devlink_rate_node_tx_share_set,
.rate_node_tx_max_set = mlx5_esw_devlink_rate_node_tx_max_set,
.rate_node_new = mlx5_esw_devlink_rate_node_new,
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c
index b6ae384396b3..ec706e9352e1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c
@@ -906,6 +906,26 @@ int mlx5_esw_devlink_rate_leaf_tx_max_set(struct devlink_rate *rate_leaf, void *
return err;
}

+int mlx5_esw_devlink_rate_leaf_tc_bw_set(struct devlink_rate *rate_leaf,
+ void *priv,
+ u32 *tc_bw,
+ struct netlink_ext_ack *extack)
+{
+ NL_SET_ERR_MSG_MOD(extack,
+ "TC bandwidth shares are not supported on leafs");
+ return -EOPNOTSUPP;
+}
+
+int mlx5_esw_devlink_rate_node_tc_bw_set(struct devlink_rate *rate_node,
+ void *priv,
+ u32 *tc_bw,
+ struct netlink_ext_ack *extack)
+{
+ NL_SET_ERR_MSG_MOD(extack,
+ "TC bandwidth shares are not supported on nodes");
+ return -EOPNOTSUPP;
+}
+
int mlx5_esw_devlink_rate_node_tx_share_set(struct devlink_rate *rate_node, void *priv,
u64 tx_share, struct netlink_ext_ack *extack)
{
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.h b/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.h
index ed40ec8f027e..0a50982b0e27 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.h
@@ -21,6 +21,14 @@ int mlx5_esw_devlink_rate_leaf_tx_share_set(struct devlink_rate *rate_leaf, void
u64 tx_share, struct netlink_ext_ack *extack);
int mlx5_esw_devlink_rate_leaf_tx_max_set(struct devlink_rate *rate_leaf, void *priv,
u64 tx_max, struct netlink_ext_ack *extack);
+int mlx5_esw_devlink_rate_leaf_tc_bw_set(struct devlink_rate *rate_node,
+ void *priv,
+ u32 *tc_bw,
+ struct netlink_ext_ack *extack);
+int mlx5_esw_devlink_rate_node_tc_bw_set(struct devlink_rate *rate_node,
+ void *priv,
+ u32 *tc_bw,
+ struct netlink_ext_ack *extack);
int mlx5_esw_devlink_rate_node_tx_share_set(struct devlink_rate *rate_node, void *priv,
u64 tx_share, struct netlink_ext_ack *extack);
int mlx5_esw_devlink_rate_node_tx_max_set(struct devlink_rate *rate_node, void *priv,
--
2.31.1