linux-kernel - [PATCH net-next V8 2/5] net/mlx5: Add no-op implementation for setting tc-bw on rate objects

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Message-ID: <1746530803-450152-3-git-send-email-tariqt@nvidia.com>
Date: Tue, 6 May 2025 14:26:40 +0300
From: Tariq Toukan <tariqt@...dia.com>
To: "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>, Eric Dumazet <edumazet@...gle.com>, "Andrew
 Lunn" <andrew+netdev@...n.ch>
CC: Jiri Pirko <jiri@...dia.com>, Gal Pressman <gal@...dia.com>, "Leon
 Romanovsky" <leonro@...dia.com>, Donald Hunter <donald.hunter@...il.com>,
	"Jiri Pirko" <jiri@...nulli.us>, Jonathan Corbet <corbet@....net>, Saeed
 Mahameed <saeedm@...dia.com>, Leon Romanovsky <leon@...nel.org>, Tariq Toukan
	<tariqt@...dia.com>, <netdev@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-doc@...r.kernel.org>,
	<linux-rdma@...r.kernel.org>, Moshe Shemesh <moshe@...dia.com>, Mark Bloch
	<mbloch@...dia.com>, Carolina Jubran <cjubran@...dia.com>, Cosmin Ratiu
	<cratiu@...dia.com>
Subject: [PATCH net-next V8 2/5] net/mlx5: Add no-op implementation for setting tc-bw on rate objects

From: Carolina Jubran <cjubran@...dia.com>

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@...dia.com>
Reviewed-by: Cosmin Ratiu <cratiu@...dia.com>
Signed-off-by: Tariq Toukan <tariqt@...dia.com>
---
 .../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