netdev - [PATCH mlx5-next 3/6] net/mlx5: Add support EXECUTE

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Date:   Wed,  8 Jun 2022 13:04:49 -0700
From:   Saeed Mahameed <saeed@...nel.org>
To:     Leon Romanovsky <leonro@...dia.com>,
        Saeed Mahameed <saeedm@...dia.com>
Cc:     Jason Gunthorpe <jgg@...dia.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Eric Dumazet <edumazet@...gle.com>, netdev@...r.kernel.org,
        linux-rdma@...r.kernel.org, Jianbo Liu <jianbol@...dia.com>,
        Roi Dayan <roid@...dia.com>
Subject: [PATCH mlx5-next 3/6] net/mlx5: Add support EXECUTE_ASO action for flow entry

From: Jianbo Liu <jianbol@...dia.com>

Attach flow meter to FTE with object id and index.
Use metadata register C5 to store the packet color meter result.

Signed-off-by: Jianbo Liu <jianbol@...dia.com>
Reviewed-by: Roi Dayan <roid@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
 .../net/ethernet/mellanox/mlx5/core/fs_cmd.c  | 33 +++++++++++++++++++
 include/linux/mlx5/fs.h                       | 14 ++++++++
 2 files changed, 47 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
index 2ccf7bef9b05..735dc805dad7 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
@@ -479,6 +479,30 @@ static int mlx5_set_extended_dest(struct mlx5_core_dev *dev,
 
 	return 0;
 }
+
+static void
+mlx5_cmd_set_fte_flow_meter(struct fs_fte *fte, void *in_flow_context)
+{
+	void *exe_aso_ctrl;
+	void *execute_aso;
+
+	execute_aso = MLX5_ADDR_OF(flow_context, in_flow_context,
+				   execute_aso[0]);
+	MLX5_SET(execute_aso, execute_aso, valid, 1);
+	MLX5_SET(execute_aso, execute_aso, aso_object_id,
+		 fte->action.exe_aso.object_id);
+
+	exe_aso_ctrl = MLX5_ADDR_OF(execute_aso, execute_aso, exe_aso_ctrl);
+	MLX5_SET(exe_aso_ctrl_flow_meter, exe_aso_ctrl, return_reg_id,
+		 fte->action.exe_aso.return_reg_id);
+	MLX5_SET(exe_aso_ctrl_flow_meter, exe_aso_ctrl, aso_type,
+		 fte->action.exe_aso.type);
+	MLX5_SET(exe_aso_ctrl_flow_meter, exe_aso_ctrl, init_color,
+		 fte->action.exe_aso.flow_meter.init_color);
+	MLX5_SET(exe_aso_ctrl_flow_meter, exe_aso_ctrl, meter_id,
+		 fte->action.exe_aso.flow_meter.meter_idx);
+}
+
 static int mlx5_cmd_set_fte(struct mlx5_core_dev *dev,
 			    int opmod, int modify_mask,
 			    struct mlx5_flow_table *ft,
@@ -663,6 +687,15 @@ static int mlx5_cmd_set_fte(struct mlx5_core_dev *dev,
 			 list_size);
 	}
 
+	if (fte->action.action & MLX5_FLOW_CONTEXT_ACTION_EXECUTE_ASO) {
+		if (fte->action.exe_aso.type == MLX5_EXE_ASO_FLOW_METER) {
+			mlx5_cmd_set_fte_flow_meter(fte, in_flow_context);
+		} else {
+			err = -EOPNOTSUPP;
+			goto err_out;
+		}
+	}
+
 	err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
 err_out:
 	kvfree(in);
diff --git a/include/linux/mlx5/fs.h b/include/linux/mlx5/fs.h
index 8135713b0d2d..ece3e35622d7 100644
--- a/include/linux/mlx5/fs.h
+++ b/include/linux/mlx5/fs.h
@@ -212,6 +212,19 @@ struct mlx5_flow_group *
 mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
 void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
 
+struct mlx5_exe_aso {
+	u32 object_id;
+	u8 type;
+	u8 return_reg_id;
+	union {
+		u32 ctrl_data;
+		struct {
+			u8 meter_idx;
+			u8 init_color;
+		} flow_meter;
+	};
+};
+
 struct mlx5_fs_vlan {
         u16 ethtype;
         u16 vid;
@@ -237,6 +250,7 @@ struct mlx5_flow_act {
 	struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH];
 	struct ib_counters *counters;
 	struct mlx5_flow_group *fg;
+	struct mlx5_exe_aso exe_aso;
 };
 
 #define MLX5_DECLARE_FLOW_ACT(name) \
-- 
2.36.1