2 * Copyright (c) 2018, Mellanox Technologies. All rights reserved.
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
33 #ifndef __LIB_TRACER_H__
34 #define __LIB_TRACER_H__
36 #include <linux/mlx5/driver.h>
37 #include "mlx5_core.h"
39 #define STRINGS_DB_SECTIONS_NUM 8
40 #define STRINGS_DB_READ_SIZE_BYTES 256
41 #define STRINGS_DB_LEFTOVER_SIZE_BYTES 64
42 #define TRACER_BUFFER_PAGE_NUM 64
43 #define TRACER_BUFFER_CHUNK 4096
44 #define TRACE_BUFFER_SIZE_BYTE (TRACER_BUFFER_PAGE_NUM * TRACER_BUFFER_CHUNK)
46 #define TRACER_BLOCK_SIZE_BYTE 256
47 #define TRACES_PER_BLOCK 32
49 #define TRACER_MAX_PARAMS 7
50 #define MESSAGE_HASH_BITS 6
51 #define MESSAGE_HASH_SIZE BIT(MESSAGE_HASH_BITS)
53 #define MASK_52_7 (0x1FFFFFFFFFFF80)
54 #define MASK_6_0 (0x7F)
56 struct mlx5_fw_tracer {
57 struct mlx5_core_dev *dev;
60 struct workqueue_struct *work_queue;
61 struct work_struct ownership_change_work;
62 struct work_struct read_fw_strings_work;
66 u8 first_string_trace;
69 u32 base_address_out[STRINGS_DB_SECTIONS_NUM];
70 u32 size_out[STRINGS_DB_SECTIONS_NUM];
71 void *buffer[STRINGS_DB_SECTIONS_NUM];
81 struct mlx5_core_mkey mkey;
86 struct work_struct handle_traces_work;
87 struct hlist_head hash[MESSAGE_HASH_SIZE];
88 struct list_head ready_strings_list;
91 struct tracer_string_format {
93 int params[TRACER_MAX_PARAMS];
98 struct hlist_node hlist;
99 struct list_head list;
104 enum mlx5_fw_tracer_ownership_state {
105 MLX5_FW_TRACER_RELEASE_OWNERSHIP,
106 MLX5_FW_TRACER_ACQUIRE_OWNERSHIP,
109 enum tracer_ctrl_fields_select {
110 TRACE_STATUS = 1 << 0,
113 enum tracer_event_type {
114 TRACER_EVENT_TYPE_STRING,
115 TRACER_EVENT_TYPE_TIMESTAMP = 0xFF,
116 TRACER_EVENT_TYPE_UNRECOGNIZED,
120 TRACE_TO_MEMORY = 1 << 0,
123 struct tracer_timestamp_event {
128 struct tracer_string_event {
135 struct tracer_event {
140 struct tracer_string_event string_event;
141 struct tracer_timestamp_event timestamp_event;
145 struct mlx5_ifc_tracer_event_bits {
152 struct mlx5_ifc_tracer_string_event_bits {
158 u8 string_param[0x20];
161 struct mlx5_ifc_tracer_timestamp_event_bits {
162 u8 timestamp7_0[0x8];
165 u8 timestamp52_40[0xd];
166 u8 timestamp39_8[0x20];
169 struct mlx5_fw_tracer *mlx5_fw_tracer_create(struct mlx5_core_dev *dev);
170 int mlx5_fw_tracer_init(struct mlx5_fw_tracer *tracer);
171 void mlx5_fw_tracer_cleanup(struct mlx5_fw_tracer *tracer);
172 void mlx5_fw_tracer_destroy(struct mlx5_fw_tracer *tracer);
173 void mlx5_fw_tracer_event(struct mlx5_core_dev *dev, struct mlx5_eqe *eqe) { return; }