| /* |
| * Copyright (c) 2018, Mellanox Technologies. All rights reserved. |
| * |
| * This software is available to you under a choice of one of two |
| * licenses. You may choose to be licensed under the terms of the GNU |
| * General Public License (GPL) Version 2, available from the file |
| * COPYING in the main directory of this source tree, or the |
| * OpenIB.org BSD license below: |
| * |
| * Redistribution and use in source and binary forms, with or |
| * without modification, are permitted provided that the following |
| * conditions are met: |
| * |
| * - Redistributions of source code must retain the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials |
| * provided with the distribution. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| |
| #ifndef __LIB_TRACER_H__ |
| #define __LIB_TRACER_H__ |
| |
| #include <linux/mlx5/driver.h> |
| #include "mlx5_core.h" |
| |
| #define STRINGS_DB_SECTIONS_NUM 8 |
| #define STRINGS_DB_READ_SIZE_BYTES 256 |
| #define STRINGS_DB_LEFTOVER_SIZE_BYTES 64 |
| #define TRACER_BUFFER_PAGE_NUM 64 |
| #define TRACER_BUFFER_CHUNK 4096 |
| #define TRACE_BUFFER_SIZE_BYTE (TRACER_BUFFER_PAGE_NUM * TRACER_BUFFER_CHUNK) |
| |
| #define TRACER_BLOCK_SIZE_BYTE 256 |
| #define TRACES_PER_BLOCK 32 |
| |
| #define TRACER_MAX_PARAMS 7 |
| #define MESSAGE_HASH_BITS 6 |
| #define MESSAGE_HASH_SIZE BIT(MESSAGE_HASH_BITS) |
| |
| #define MASK_52_7 (0x1FFFFFFFFFFF80) |
| #define MASK_6_0 (0x7F) |
| |
| struct mlx5_fw_tracer { |
| struct mlx5_core_dev *dev; |
| struct mlx5_nb nb; |
| bool owner; |
| u8 trc_ver; |
| struct workqueue_struct *work_queue; |
| struct work_struct ownership_change_work; |
| struct work_struct read_fw_strings_work; |
| |
| /* Strings DB */ |
| struct { |
| u8 first_string_trace; |
| u8 num_string_trace; |
| u32 num_string_db; |
| u32 base_address_out[STRINGS_DB_SECTIONS_NUM]; |
| u32 size_out[STRINGS_DB_SECTIONS_NUM]; |
| void *buffer[STRINGS_DB_SECTIONS_NUM]; |
| bool loaded; |
| } str_db; |
| |
| /* Log Buffer */ |
| struct { |
| u32 pdn; |
| void *log_buf; |
| dma_addr_t dma; |
| u32 size; |
| struct mlx5_core_mkey mkey; |
| u32 consumer_index; |
| } buff; |
| |
| u64 last_timestamp; |
| struct work_struct handle_traces_work; |
| struct hlist_head hash[MESSAGE_HASH_SIZE]; |
| struct list_head ready_strings_list; |
| }; |
| |
| struct tracer_string_format { |
| char *string; |
| int params[TRACER_MAX_PARAMS]; |
| int num_of_params; |
| int last_param_num; |
| u8 event_id; |
| u32 tmsn; |
| struct hlist_node hlist; |
| struct list_head list; |
| u32 timestamp; |
| bool lost; |
| }; |
| |
| enum mlx5_fw_tracer_ownership_state { |
| MLX5_FW_TRACER_RELEASE_OWNERSHIP, |
| MLX5_FW_TRACER_ACQUIRE_OWNERSHIP, |
| }; |
| |
| enum tracer_ctrl_fields_select { |
| TRACE_STATUS = 1 << 0, |
| }; |
| |
| enum tracer_event_type { |
| TRACER_EVENT_TYPE_STRING, |
| TRACER_EVENT_TYPE_TIMESTAMP = 0xFF, |
| TRACER_EVENT_TYPE_UNRECOGNIZED, |
| }; |
| |
| enum tracing_mode { |
| TRACE_TO_MEMORY = 1 << 0, |
| }; |
| |
| struct tracer_timestamp_event { |
| u64 timestamp; |
| u8 unreliable; |
| }; |
| |
| struct tracer_string_event { |
| u32 timestamp; |
| u32 tmsn; |
| u32 tdsn; |
| u32 string_param; |
| }; |
| |
| struct tracer_event { |
| bool lost_event; |
| u32 type; |
| u8 event_id; |
| union { |
| struct tracer_string_event string_event; |
| struct tracer_timestamp_event timestamp_event; |
| }; |
| }; |
| |
| struct mlx5_ifc_tracer_event_bits { |
| u8 lost[0x1]; |
| u8 timestamp[0x7]; |
| u8 event_id[0x8]; |
| u8 event_data[0x30]; |
| }; |
| |
| struct mlx5_ifc_tracer_string_event_bits { |
| u8 lost[0x1]; |
| u8 timestamp[0x7]; |
| u8 event_id[0x8]; |
| u8 tmsn[0xd]; |
| u8 tdsn[0x3]; |
| u8 string_param[0x20]; |
| }; |
| |
| struct mlx5_ifc_tracer_timestamp_event_bits { |
| u8 timestamp7_0[0x8]; |
| u8 event_id[0x8]; |
| u8 urts[0x3]; |
| u8 timestamp52_40[0xd]; |
| u8 timestamp39_8[0x20]; |
| }; |
| |
| struct mlx5_fw_tracer *mlx5_fw_tracer_create(struct mlx5_core_dev *dev); |
| int mlx5_fw_tracer_init(struct mlx5_fw_tracer *tracer); |
| void mlx5_fw_tracer_cleanup(struct mlx5_fw_tracer *tracer); |
| void mlx5_fw_tracer_destroy(struct mlx5_fw_tracer *tracer); |
| |
| #endif |