netdev - [PATCH mlx5-next 5/8] net/mlx5: Implement new destination type TABLE

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Date:   Wed,  4 Jan 2023 20:17:53 -0800
From:   Saeed Mahameed <saeed@...nel.org>
To:     Saeed Mahameed <saeedm@...dia.com>,
        Leon Romanovsky <leonro@...dia.com>
Cc:     Jason Gunthorpe <jgg@...dia.com>, linux-rdma@...r.kernel.org,
        netdev@...r.kernel.org, Mark Zhang <markzhang@...dia.com>,
        Patrisious Haddad <phaddad@...dia.com>
Subject: [PATCH mlx5-next 5/8] net/mlx5: Implement new destination type TABLE_TYPE

From: Mark Zhang <markzhang@...dia.com>

Implement new destination type to support flow transition between
different table types.
e.g. from NIC_RX to RDMA_RX or from RDMA_TX to NIC_TX.
The new destination is described in the tracepoint as follows:
"mlx5_fs_add_rule: rule=00000000d53cd0ed fte=0000000048a8a6ed index=0 sw_action=<> [dst] flow_table_type=7 id:262152"

Signed-off-by: Mark Zhang <markzhang@...dia.com>
Signed-off-by: Patrisious Haddad <phaddad@...dia.com>
Reviewed-by: Leon Romanovsky <leonro@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
 .../net/ethernet/mellanox/mlx5/core/diag/fs_tracepoint.c    | 4 ++++
 drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c            | 6 ++++++
 drivers/net/ethernet/mellanox/mlx5/core/fs_core.c           | 3 ++-
 include/linux/mlx5/fs.h                                     | 1 +
 4 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/diag/fs_tracepoint.c b/drivers/net/ethernet/mellanox/mlx5/core/diag/fs_tracepoint.c
index 2732128e7a6e..6d73127b7217 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/diag/fs_tracepoint.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/diag/fs_tracepoint.c
@@ -275,6 +275,10 @@ const char *parse_fs_dst(struct trace_seq *p,
 				 fs_dest_range_field_to_str(dst->range.field),
 				 dst->range.min, dst->range.max);
 		break;
+	case MLX5_FLOW_DESTINATION_TYPE_TABLE_TYPE:
+		trace_seq_printf(p, "flow_table_type=%u id:%u\n", dst->ft->type,
+				 dst->ft->id);
+		break;
 	case MLX5_FLOW_DESTINATION_TYPE_NONE:
 		trace_seq_printf(p, "none\n");
 		break;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
index 32d4c967469c..a3a9cc6f15ca 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
@@ -653,6 +653,12 @@ static int mlx5_cmd_set_fte(struct mlx5_core_dev *dev,
 				id = dst->dest_attr.sampler_id;
 				ifc_type = MLX5_IFC_FLOW_DESTINATION_TYPE_FLOW_SAMPLER;
 				break;
+			case MLX5_FLOW_DESTINATION_TYPE_TABLE_TYPE:
+				MLX5_SET(dest_format_struct, in_dests,
+					 destination_table_type, dst->dest_attr.ft->type);
+				id = dst->dest_attr.ft->id;
+				ifc_type = MLX5_IFC_FLOW_DESTINATION_TYPE_TABLE_TYPE;
+				break;
 			default:
 				id = dst->dest_attr.tir_num;
 				ifc_type = MLX5_IFC_FLOW_DESTINATION_TYPE_TIR;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
index 5a85d8c1e797..2333f835fb70 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
@@ -449,7 +449,8 @@ static bool is_fwd_dest_type(enum mlx5_flow_destination_type type)
 		type == MLX5_FLOW_DESTINATION_TYPE_VPORT ||
 		type == MLX5_FLOW_DESTINATION_TYPE_FLOW_SAMPLER ||
 		type == MLX5_FLOW_DESTINATION_TYPE_TIR ||
-		type == MLX5_FLOW_DESTINATION_TYPE_RANGE;
+		type == MLX5_FLOW_DESTINATION_TYPE_RANGE ||
+		type == MLX5_FLOW_DESTINATION_TYPE_TABLE_TYPE;
 }
 
 static bool check_valid_spec(const struct mlx5_flow_spec *spec)
diff --git a/include/linux/mlx5/fs.h b/include/linux/mlx5/fs.h
index ba6958b49a8e..1d2a0638ae74 100644
--- a/include/linux/mlx5/fs.h
+++ b/include/linux/mlx5/fs.h
@@ -51,6 +51,7 @@ enum mlx5_flow_destination_type {
 	MLX5_FLOW_DESTINATION_TYPE_COUNTER,
 	MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE_NUM,
 	MLX5_FLOW_DESTINATION_TYPE_RANGE,
+	MLX5_FLOW_DESTINATION_TYPE_TABLE_TYPE,
 };
 
 enum {
-- 
2.38.1