Subject: [net-next 07/15] net/mlx5e: E-Switch, Use metadata for vport matching in send-to-vport rules

From: Saeed Mahameed <[email-masked]>
Date: Fri, 19 May 2023 10:55:49 -0700

From: Roi Dayan <[email-masked]>

Like other rules use metadata matching if supported instead of
source_port.

Signed-off-by: Roi Dayan <[email-masked]>
Reviewed-by: Maor Dickman <[email-masked]>
Signed-off-by: Saeed Mahameed <[email-masked]>
---
 .../mellanox/mlx5/core/eswitch_offloads.c     | 62 +++++++++++++------
 1 file changed, 43 insertions(+), 19 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
index ecd12a0c6f07..66a522d08be1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
@@ -838,6 +838,7 @@ mlx5_eswitch_add_send_to_vport_rule(struct mlx5_eswitch *on_esw,
 	struct mlx5_flow_handle *flow_rule;
 	struct mlx5_flow_spec *spec;
 	void *misc;
+	u16 vport;
 
 	spec = kvzalloc(sizeof(*spec), GFP_KERNEL);
 	if (!spec) {
@@ -847,20 +848,43 @@ mlx5_eswitch_add_send_to_vport_rule(struct mlx5_eswitch *on_esw,
 
 	misc = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters);
 	MLX5_SET(fte_match_set_misc, misc, source_sqn, sqn);
-	/* source vport is the esw manager */
-	MLX5_SET(fte_match_set_misc, misc, source_port, from_esw->manager_vport);
-	if (MLX5_CAP_ESW(on_esw->dev, merged_eswitch))
-		MLX5_SET(fte_match_set_misc, misc, source_eswitch_owner_vhca_id,
-			 MLX5_CAP_GEN(from_esw->dev, vhca_id));
 
 	misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, misc_parameters);
 	MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_sqn);
-	MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_port);
-	if (MLX5_CAP_ESW(on_esw->dev, merged_eswitch))
-		MLX5_SET_TO_ONES(fte_match_set_misc, misc,
-				 source_eswitch_owner_vhca_id);
 
 	spec->match_criteria_enable = MLX5_MATCH_MISC_PARAMETERS;
+
+	/* source vport is the esw manager */
+	vport = from_esw->manager_vport;
+
+	if (mlx5_eswitch_vport_match_metadata_enabled(on_esw)) {
+		misc = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters_2);
+		MLX5_SET(fte_match_set_misc2, misc, metadata_reg_c_0,
+			 mlx5_eswitch_get_vport_metadata_for_match(from_esw, vport));
+
+		misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, misc_parameters_2);
+		MLX5_SET(fte_match_set_misc2, misc, metadata_reg_c_0,
+			 mlx5_eswitch_get_vport_metadata_mask());
+
+		spec->match_criteria_enable |= MLX5_MATCH_MISC_PARAMETERS_2;
+	} else {
+		misc = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters);
+		MLX5_SET(fte_match_set_misc, misc, source_port, vport);
+
+		if (MLX5_CAP_ESW(on_esw->dev, merged_eswitch))
+			MLX5_SET(fte_match_set_misc, misc, source_eswitch_owner_vhca_id,
+				 MLX5_CAP_GEN(from_esw->dev, vhca_id));
+
+		misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, misc_parameters);
+		MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_port);
+
+		if (MLX5_CAP_ESW(on_esw->dev, merged_eswitch))
+			MLX5_SET_TO_ONES(fte_match_set_misc, misc,
+					 source_eswitch_owner_vhca_id);
+
+		spec->match_criteria_enable |= MLX5_MATCH_MISC_PARAMETERS;
+	}
+
 	dest.type = MLX5_FLOW_DESTINATION_TYPE_VPORT;
 	dest.vport.num = rep->vport;
 	dest.vport.vhca_id = MLX5_CAP_GEN(rep->esw->dev, vhca_id);
@@ -1270,7 +1294,8 @@ esw_add_restore_rule(struct mlx5_eswitch *esw, u32 tag)
 #define MAX_SQ_NVPORTS 32
 
 static void esw_set_flow_group_source_port(struct mlx5_eswitch *esw,
-					   u32 *flow_group_in)
+					   u32 *flow_group_in,
+					   int match_params)
 {
 	void *match_criteria = MLX5_ADDR_OF(create_flow_group_in,
 					    flow_group_in,
@@ -1279,7 +1304,7 @@ static void esw_set_flow_group_source_port(struct mlx5_eswitch *esw,
 	if (mlx5_eswitch_vport_match_metadata_enabled(esw)) {
 		MLX5_SET(create_flow_group_in, flow_group_in,
 			 match_criteria_enable,
-			 MLX5_MATCH_MISC_PARAMETERS_2);
+			 MLX5_MATCH_MISC_PARAMETERS_2 | match_params);
 
 		MLX5_SET(fte_match_param, match_criteria,
 			 misc_parameters_2.metadata_reg_c_0,
@@ -1287,7 +1312,7 @@ static void esw_set_flow_group_source_port(struct mlx5_eswitch *esw,
 	} else {
 		MLX5_SET(create_flow_group_in, flow_group_in,
 			 match_criteria_enable,
-			 MLX5_MATCH_MISC_PARAMETERS);
+			 MLX5_MATCH_MISC_PARAMETERS | match_params);
 
 		MLX5_SET_TO_ONES(fte_match_param, match_criteria,
 				 misc_parameters.source_port);
@@ -1463,14 +1488,13 @@ esw_create_send_to_vport_group(struct mlx5_eswitch *esw,
 
 	memset(flow_group_in, 0, inlen);
 
-	MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable,
-		 MLX5_MATCH_MISC_PARAMETERS);
+	esw_set_flow_group_source_port(esw, flow_group_in, MLX5_MATCH_MISC_PARAMETERS);
 
 	match_criteria = MLX5_ADDR_OF(create_flow_group_in, flow_group_in, match_criteria);
-
 	MLX5_SET_TO_ONES(fte_match_param, match_criteria, misc_parameters.source_sqn);
-	MLX5_SET_TO_ONES(fte_match_param, match_criteria, misc_parameters.source_port);
-	if (MLX5_CAP_ESW(esw->dev, merged_eswitch)) {
+
+	if (!mlx5_eswitch_vport_match_metadata_enabled(esw) &&
+	    MLX5_CAP_ESW(esw->dev, merged_eswitch)) {
 		MLX5_SET_TO_ONES(fte_match_param, match_criteria,
 				 misc_parameters.source_eswitch_owner_vhca_id);
 		MLX5_SET(create_flow_group_in, flow_group_in,
@@ -1558,7 +1582,7 @@ esw_create_peer_esw_miss_group(struct mlx5_eswitch *esw,
 
 	memset(flow_group_in, 0, inlen);
 
-	esw_set_flow_group_source_port(esw, flow_group_in);
+	esw_set_flow_group_source_port(esw, flow_group_in, 0);
 
 	if (!mlx5_eswitch_vport_match_metadata_enabled(esw)) {
 		match_criteria = MLX5_ADDR_OF(create_flow_group_in,
@@ -1845,7 +1869,7 @@ static int esw_create_vport_rx_group(struct mlx5_eswitch *esw)
 		return -ENOMEM;
 
 	/* create vport rx group */
-	esw_set_flow_group_source_port(esw, flow_group_in);
+	esw_set_flow_group_source_port(esw, flow_group_in, 0);
 
 	MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 0);
 	MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, nvports - 1);
-- 
2.40.1