{net, RDMA}/mlx5: Extend send to vport rules

In shared FDB there is only one eswitch which is active and it receives
traffic from all representors and all vports in the HCA.

While the Ethernet representor will always reside on its native PF
the IB representor will not. Extend send to vport rule creation to
support such flows. Need to account for source vport that sends the
traffic (on which the representors resides) and the target eswitch
the traffic which reach.

Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Reviewed-by: Mark Zhang <markzhang@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

drivers/infiniband/hw/mlx5/ib_rep.c

@@ -123,7 +123,7 @@ struct mlx5_flow_handle *create_flow_rule_vport_sq(struct mlx5_ib_dev *dev,
 
 	rep = dev->port[port - 1].rep;
 
-	return mlx5_eswitch_add_send_to_vport_rule(esw, rep, sq->base.mqp.qpn);
+	return mlx5_eswitch_add_send_to_vport_rule(esw, esw, rep, sq->base.mqp.qpn);
 }
 
 static int mlx5r_rep_probe(struct auxiliary_device *adev,

drivers/net/ethernet/mellanox/mlx5/core/en_rep.c

@@ -337,7 +337,7 @@ static int mlx5e_sqs2vport_start(struct mlx5_eswitch *esw,
 		}
 
 		/* Add re-inject rule to the PF/representor sqs */
-		flow_rule = mlx5_eswitch_add_send_to_vport_rule(esw, rep,
+		flow_rule = mlx5_eswitch_add_send_to_vport_rule(esw, esw, rep,
 								sqns_array[i]);
 		if (IS_ERR(flow_rule)) {
 			err = PTR_ERR(flow_rule);

drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c

@@ -925,6 +925,7 @@ out:
 
 struct mlx5_flow_handle *
 mlx5_eswitch_add_send_to_vport_rule(struct mlx5_eswitch *on_esw,
+				    struct mlx5_eswitch *from_esw,
 				    struct mlx5_eswitch_rep *rep,
 				    u32 sqn)
 {
@@ -943,10 +944,10 @@ 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, rep->esw->manager_vport);
+	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(rep->esw->dev, 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);

include/linux/mlx5/eswitch.h

@@ -63,6 +63,7 @@ struct mlx5_eswitch_rep *mlx5_eswitch_vport_rep(struct mlx5_eswitch *esw,
 void *mlx5_eswitch_uplink_get_proto_dev(struct mlx5_eswitch *esw, u8 rep_type);
 struct mlx5_flow_handle *
 mlx5_eswitch_add_send_to_vport_rule(struct mlx5_eswitch *on_esw,
+				    struct mlx5_eswitch *from_esw,
 				    struct mlx5_eswitch_rep *rep, u32 sqn);
 
 #ifdef CONFIG_MLX5_ESWITCH