net/mlx5: Expose SW ICM related device memory capabilities

Add SW ICM related fields to the device memory capabilities
structure and sw ownership capability in flow table properties.

The currently supported SW ICM types are steering and header modify
and the changes exposes the device memory capabilities for each
of these two types.

SW ICM memory can be allocated by SW and then be accessed by RDMA
operations for direct management of the HW packet handling tables.

Signed-off-by: Ariel Levkovich <lariel@mellanox.com>
Reviewed-by: Eli Cohen <eli@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index 11e4984421347fd316dc5a618d4c22a10e356cd3..d96eb0916a4447a03aafa3f633ec727220469237 100644 (file)
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -80,6 +80,14 @@ enum {
        MLX5_SHARED_RESOURCE_UID = 0xffff,
 };
 
+enum {
+       MLX5_OBJ_TYPE_SW_ICM = 0x0008,
+};
+
+enum {
+       MLX5_GENERAL_OBJ_TYPES_CAP_SW_ICM = (1ULL << MLX5_OBJ_TYPE_SW_ICM),
+};
+
 enum {
        MLX5_CMD_OP_QUERY_HCA_CAP                 = 0x100,
        MLX5_CMD_OP_QUERY_ADAPTER                 = 0x101,
@@ -357,7 +365,8 @@ struct mlx5_ifc_flow_table_prop_layout_bits {
        u8         pop_vlan_2[0x1];
        u8         push_vlan_2[0x1];
        u8         reformat_and_vlan_action[0x1];
-       u8         reserved_at_10[0x2];
+       u8         reserved_at_10[0x1];
+       u8         sw_owner[0x1];
        u8         reformat_l3_tunnel_to_l2[0x1];
        u8         reformat_l2_to_l3_tunnel[0x1];
        u8         reformat_and_modify_action[0x1];
@@ -770,7 +779,19 @@ struct mlx5_ifc_device_mem_cap_bits {
 
        u8         max_memic_size[0x20];
 
-       u8         reserved_at_c0[0x740];
+       u8         steering_sw_icm_start_address[0x40];
+
+       u8         reserved_at_100[0x8];
+       u8         log_header_modify_sw_icm_size[0x8];
+       u8         reserved_at_110[0x2];
+       u8         log_sw_icm_alloc_granularity[0x6];
+       u8         log_steering_sw_icm_size[0x8];
+
+       u8         reserved_at_120[0x20];
+
+       u8         header_modify_sw_icm_start_address[0x40];
+
+       u8         reserved_at_180[0x680];
 };
 
 enum {
@@ -919,6 +940,7 @@ enum {
 
 enum {
        MLX5_UCTX_CAP_RAW_TX = 1UL << 0,
+       MLX5_UCTX_CAP_INTERNAL_DEV_RES = 1UL << 1,
 };
 
 struct mlx5_ifc_cmd_hca_cap_bits {
@@ -2920,6 +2942,7 @@ enum {
        MLX5_MKC_ACCESS_MODE_MTT   = 0x1,
        MLX5_MKC_ACCESS_MODE_KLMS  = 0x2,
        MLX5_MKC_ACCESS_MODE_KSM   = 0x3,
+       MLX5_MKC_ACCESS_MODE_SW_ICM = 0x4,
        MLX5_MKC_ACCESS_MODE_MEMIC = 0x5,
 };
 
@@ -9491,6 +9514,19 @@ struct mlx5_ifc_uctx_bits {
        u8         reserved_at_20[0x160];
 };
 
+struct mlx5_ifc_sw_icm_bits {
+       u8         modify_field_select[0x40];
+
+       u8         reserved_at_40[0x18];
+       u8         log_sw_icm_size[0x8];
+
+       u8         reserved_at_60[0x20];
+
+       u8         sw_icm_start_addr[0x40];
+
+       u8         reserved_at_c0[0x140];
+};
+
 struct mlx5_ifc_create_umem_in_bits {
        u8         opcode[0x10];
        u8         uid[0x10];
@@ -9528,6 +9564,11 @@ struct mlx5_ifc_destroy_uctx_in_bits {
        u8         reserved_at_60[0x20];
 };
 
+struct mlx5_ifc_create_sw_icm_in_bits {
+       struct mlx5_ifc_general_obj_in_cmd_hdr_bits   hdr;
+       struct mlx5_ifc_sw_icm_bits                   sw_icm;
+};
+
 struct mlx5_ifc_mtrc_string_db_param_bits {
        u8         string_db_base_address[0x20];