common/mlx5: add connection tracking object

The structures of ASO connection tracking offload object are added
based on the definitions in the PRM. One CT object context will be
loaded into the cache completely in a reversed order of dwords. The
valid bit should be the MSB of the last dword. This is used for the
conntrack context creation and update, as well as for the query.

The capabilities 2 (HCA_CAP_2) layout is also added. The connection
tracking related capabilities could be queried via the HCA_CAP_2.

Signed-off-by: Bing Zhao <bingz@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>

diff --git a/drivers/common/mlx5/mlx5_prm.h b/drivers/common/mlx5/mlx5_prm.h
index 06d9a83..54a0ccb 100644 (file)
--- a/drivers/common/mlx5/mlx5_prm.h
+++ b/drivers/common/mlx5/mlx5_prm.h
@@ -1229,6 +1229,7 @@ enum {
        MLX5_GET_HCA_CAP_OP_MOD_ROCE = 0x4 << 1,
        MLX5_GET_HCA_CAP_OP_MOD_NIC_FLOW_TABLE = 0x7 << 1,
        MLX5_GET_HCA_CAP_OP_MOD_VDPA_EMULATION = 0x13 << 1,
+       MLX5_GET_HCA_CAP_OP_MOD_GENERAL_DEVICE_2 = 0x20 << 1,
 };
 
 #define MLX5_GENERAL_OBJ_TYPES_CAP_VIRTQ_NET_Q \
@@ -1808,6 +1809,29 @@ struct mlx5_ifc_flow_table_nic_cap_bits {
               ft_field_support_2_nic_receive;
 };
 
+struct mlx5_ifc_cmd_hca_cap_2_bits {
+       u8 reserved_at_0[0x80]; /* End of DW4. */
+       u8 reserved_at_80[0xb];
+       u8 log_max_num_reserved_qpn[0x5];
+       u8 reserved_at_90[0x3];
+       u8 log_reserved_qpn_granularity[0x5];
+       u8 reserved_at_98[0x3];
+       u8 log_reserved_qpn_max_alloc[0x5]; /* End of DW5. */
+       u8 max_reformat_insert_size[0x8];
+       u8 max_reformat_insert_offset[0x8];
+       u8 max_reformat_remove_size[0x8];
+       u8 max_reformat_remove_offset[0x8]; /* End of DW6. */
+       u8 aso_conntrack_reg_id[0x8];
+       u8 reserved_at_c8[0x3];
+       u8 log_conn_track_granularity[0x5];
+       u8 reserved_at_d0[0x3];
+       u8 log_conn_track_max_alloc[0x5];
+       u8 reserved_at_d8[0x3];
+       u8 log_max_conn_track_offload[0x5];
+       u8 reserved_at_e0[0x20]; /* End of DW7. */
+       u8 reserved_at_100[0x700];
+};
+
 union mlx5_ifc_hca_cap_union_bits {
        struct mlx5_ifc_cmd_hca_cap_bits cmd_hca_cap;
        struct mlx5_ifc_per_protocol_networking_offload_caps_bits
@@ -2837,6 +2861,67 @@ struct mlx5_ifc_create_flow_meter_aso_in_bits {
        struct mlx5_ifc_general_obj_in_cmd_hdr_bits hdr;
        struct mlx5_ifc_flow_meter_aso_bits flow_meter_aso;
 };
+
+struct mlx5_ifc_tcp_window_params_bits {
+       u8 max_ack[0x20];
+       u8 max_win[0x20];
+       u8 reply_end[0x20];
+       u8 sent_end[0x20];
+};
+
+struct mlx5_ifc_conn_track_aso_bits {
+       struct mlx5_ifc_tcp_window_params_bits reply_dir; /* End of DW3. */
+       struct mlx5_ifc_tcp_window_params_bits original_dir; /* End of DW7. */
+       u8 last_end[0x20]; /* End of DW8. */
+       u8 last_ack[0x20]; /* End of DW9. */
+       u8 last_seq[0x20]; /* End of DW10. */
+       u8 last_win[0x10];
+       u8 reserved_at_170[0xa];
+       u8 last_dir[0x1];
+       u8 last_index[0x5]; /* End of DW11. */
+       u8 reserved_at_180[0x40]; /* End of DW13. */
+       u8 reply_direction_tcp_scale[0x4];
+       u8 reply_direction_tcp_close_initiated[0x1];
+       u8 reply_direction_tcp_liberal_enabled[0x1];
+       u8 reply_direction_tcp_data_unacked[0x1];
+       u8 reply_direction_tcp_max_ack[0x1];
+       u8 reserved_at_1c8[0x8];
+       u8 original_direction_tcp_scale[0x4];
+       u8 original_direction_tcp_close_initiated[0x1];
+       u8 original_direction_tcp_liberal_enabled[0x1];
+       u8 original_direction_tcp_data_unacked[0x1];
+       u8 original_direction_tcp_max_ack[0x1];
+       u8 reserved_at_1d8[0x8]; /* End of DW14. */
+       u8 valid[0x1];
+       u8 state[0x3];
+       u8 freeze_track[0x1];
+       u8 reserved_at_1e5[0xb];
+       u8 reserved_at_1f0[0x1];
+       u8 connection_assured[0x1];
+       u8 sack_permitted[0x1];
+       u8 challenged_acked[0x1];
+       u8 heartbeat[0x1];
+       u8 max_ack_window[0x3];
+       u8 reserved_at_1f8[0x1];
+       u8 retransmission_counter[0x3];
+       u8 retranmission_limit_exceeded[0x1];
+       u8 retranmission_limit[0x3]; /* End of DW15. */
+};
+
+struct mlx5_ifc_conn_track_offload_bits {
+       u8 modify_field_select[0x40];
+       u8 reserved_at_40[0x40];
+       u8 reserved_at_80[0x8];
+       u8 conn_track_aso_access_pd[0x18];
+       u8 reserved_at_a0[0x160];
+       struct mlx5_ifc_conn_track_aso_bits conn_track_aso;
+};
+
+struct mlx5_ifc_create_conn_track_aso_in_bits {
+       struct mlx5_ifc_general_obj_in_cmd_hdr_bits hdr;
+       struct mlx5_ifc_conn_track_offload_bits conn_track_offload;
+};
+
 enum mlx5_access_aso_opc_mod {
        ASO_OPC_MOD_IPSEC = 0x0,
        ASO_OPC_MOD_CONNECTION_TRACKING = 0x1,