f856f099cb
debug (cudbg) code, hooked up to the main driver via an ioctl. The ioctl can be used to collect the chip's internal state in a compressed dump file. These dumps can be decoded with the "view" component of cudbg. Obtained from: Chelsio Communications MFC after: 2 months Sponsored by: Chelsio Communications
175 lines
5.4 KiB
C
175 lines
5.4 KiB
C
/*-
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* Copyright (c) 2017 Chelsio Communications, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*
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*/
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#ifndef __CUDBG_LIB_COMMON_H__
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#define __CUDBG_LIB_COMMON_H__
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/* Extended entity
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*
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* Layout of the cudbg dump file when extended entity is present.
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*
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*
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* ----------------
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* | Global header |
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* |---------------|
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* |entity headers |
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* |---------------|
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* | Entity data |
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* | * |
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* | * |
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* | * |
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* |---------------|
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* |extended entity|
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* | header |
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* |---------------|
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* |extended entity|
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* | data |
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* -----------------
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*
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*
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* Extended entity: This comes into picture only when cudbg_collect() is called
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* multiple times.
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*/
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#ifndef CUDBG_LITE
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#include "common/t4_hw.h"
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#endif
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#define CUDBG_SF_MAX_SECTOR (FLASH_CUDBG_START_SEC + FLASH_CUDBG_NSECS)
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#define CUDBG_SF_SECTOR_SIZE SF_SEC_SIZE
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#define CUDBG_START_SEC FLASH_CUDBG_START_SEC
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#define CUDBG_FLASH_SIZE FLASH_CUDBG_MAX_SIZE
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#define CUDBG_EXT_DATA_BIT 0
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#define CUDBG_EXT_DATA_VALID (1 << CUDBG_EXT_DATA_BIT)
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struct cudbg_hdr {
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u32 signature;
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u32 hdr_len;
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u16 major_ver;
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u16 minor_ver;
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u32 data_len;
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u32 hdr_flags;
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u16 max_entities;
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u8 chip_ver;
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u8 reserved1;
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u32 reserved[8];
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};
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struct cudbg_entity_hdr {
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u32 entity_type;
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u32 start_offset;
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u32 size;
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int hdr_flags;
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u32 sys_warn;
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u32 sys_err;
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u8 num_pad;
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u8 flag; /* bit 0 is used to indicate ext data */
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u8 reserved1[2];
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u32 next_ext_offset; /* pointer to next extended entity meta data */
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u32 reserved[5];
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};
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struct cudbg_ver_hdr {
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u32 signature;
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u16 revision;
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u16 size;
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};
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struct cudbg_buffer {
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u32 size;
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u32 offset;
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char *data;
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};
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struct cudbg_error {
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int sys_err;
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int sys_warn;
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int app_err;
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};
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struct cudbg_flash_sec_info {
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int par_sec; /* Represent partially filled sector no */
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int par_sec_offset; /* Offset in partially filled sector */
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int cur_seq_no;
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u32 max_seq_no;
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u32 max_seq_sec;
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u32 hdr_data_len; /* Total data */
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u32 skip_size; /* Total size of large entities. */
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u64 max_timestamp;
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char sec_data[CUDBG_SF_SECTOR_SIZE];
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u8 sec_bitmap[8];
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};
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struct cudbg_private {
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struct cudbg_init dbg_init;
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struct cudbg_flash_sec_info sec_info;
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};
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#define HTONL_NIBBLE(data) ( \
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(((uint32_t)(data) >> 28) & 0x0000000F) | \
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(((uint32_t)(data) >> 20) & 0x000000F0) | \
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(((uint32_t)(data) >> 12) & 0x00000F00) | \
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(((uint32_t)(data) >> 4) & 0x0000F000) | \
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(((uint32_t)(data) << 4) & 0x000F0000) | \
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(((uint32_t)(data) << 12) & 0x00F00000) | \
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(((uint32_t)(data) << 20) & 0x0F000000) | \
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(((uint32_t)(data) << 28) & 0xF0000000))
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#define CDUMP_MAX_COMP_BUF_SIZE ((64 * 1024) - 1)
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#define CUDBG_CHUNK_SIZE ((CDUMP_MAX_COMP_BUF_SIZE/1024) * 1024)
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#define CUDBG_LEGACY_SIGNATURE 123
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#define CUDBG_SIGNATURE 67856866 /* CUDB in ascii */
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#define CUDBG_FL_SIGNATURE 0x4355464c /* CUFL in ascii */
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#define CUDBG_FL_MAJOR_VERSION 1
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#define CUDBG_FL_MINOR_VERSION 1
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#define CUDBG_FL_BUILD_VERSION 0
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void update_skip_size(struct cudbg_flash_sec_info *, u32);
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int write_compression_hdr(struct cudbg_buffer *, struct cudbg_buffer *);
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int compress_buff(struct cudbg_buffer *, struct cudbg_buffer *);
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int get_scratch_buff(struct cudbg_buffer *, u32, struct cudbg_buffer *);
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void release_scratch_buff(struct cudbg_buffer *, struct cudbg_buffer *);
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int decompress_buffer(struct cudbg_buffer *, struct cudbg_buffer *);
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int validate_buffer(struct cudbg_buffer *compressed_buffer);
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int decompress_buffer_wrapper(struct cudbg_buffer *pc_buff,
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struct cudbg_buffer *pdc_buff);
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int get_entity_rev(struct cudbg_ver_hdr *ver_hdr);
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void sort_t(void *base, int num, int size,
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int (*cmp_func)(const void *, const void *),
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void (*swap_func)(void *, void *, int size));
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int cudbg_read_flash(void *handle, void *data, u32 size, int data_flag);
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int cudbg_write_flash(void *handle, u64 timestamp, void *data,
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u32 start_offset, u32 start_hdr_offset,
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u32 cur_entity_size,
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u32 ext_size);
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#endif
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