netdev - [net-next 03/11] net/mlx5: fs, Command to control L2TABLE entry silent mode

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Message-ID: <20231214020832.50703-4-saeed@kernel.org>
Date: Wed, 13 Dec 2023 18:08:24 -0800
From: Saeed Mahameed <saeed@...nel.org>
To: "David S. Miller" <davem@...emloft.net>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Eric Dumazet <edumazet@...gle.com>
Cc: Saeed Mahameed <saeedm@...dia.com>,
	netdev@...r.kernel.org,
	Tariq Toukan <tariqt@...dia.com>,
	Gal Pressman <gal@...dia.com>
Subject: [net-next 03/11] net/mlx5: fs, Command to control L2TABLE entry silent mode

From: Tariq Toukan <tariqt@...dia.com>

Introduce an API to set/unset the L2TABLE entry silent mode for a
device. If silent, no north/south traffic is allowed, the device won't
be able to communicate with the port directly to send/receive traffic by
its own.

Signed-off-by: Tariq Toukan <tariqt@...dia.com>
Reviewed-by: Gal Pressman <gal@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c | 14 ++++++++++++++
 drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.h |  1 +
 2 files changed, 15 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
index a4b925331661..8438ecabff84 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
@@ -1144,3 +1144,17 @@ const struct mlx5_flow_cmds *mlx5_fs_cmd_get_default(enum fs_flow_table_type typ
 		return mlx5_fs_cmd_get_stub_cmds();
 	}
 }
+
+int mlx5_fs_cmd_set_l2table_entry_silent(struct mlx5_core_dev *dev, u8 silent_mode)
+{
+	u32 in[MLX5_ST_SZ_DW(set_l2_table_entry_in)] = {};
+
+	if (silent_mode && !MLX5_CAP_GEN(dev, silent_mode))
+		return -EOPNOTSUPP;
+
+	MLX5_SET(set_l2_table_entry_in, in, opcode, MLX5_CMD_OP_SET_L2_TABLE_ENTRY);
+	MLX5_SET(set_l2_table_entry_in, in, silent_mode_valid, 1);
+	MLX5_SET(set_l2_table_entry_in, in, silent_mode, silent_mode);
+
+	return mlx5_cmd_exec_in(dev, set_l2_table_entry, in);
+}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.h b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.h
index 7790ae5531e1..f553719a02a0 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.h
@@ -122,4 +122,5 @@ int mlx5_cmd_fc_bulk_query(struct mlx5_core_dev *dev, u32 base_id, int bulk_len,
 const struct mlx5_flow_cmds *mlx5_fs_cmd_get_default(enum fs_flow_table_type type);
 const struct mlx5_flow_cmds *mlx5_fs_cmd_get_fw_cmds(void);
 
+int mlx5_fs_cmd_set_l2table_entry_silent(struct mlx5_core_dev *dev, u8 silent_mode);
 #endif
-- 
2.43.0