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/*
* Copyright 2016 Broadcom
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, version 2, as
* published by the Free Software Foundation (the "GPL").
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License version 2 (GPLv2) for more details.
*
* You should have received a copy of the GNU General Public License
* version 2 (GPLv2) along with this source code.
*/
#ifndef _UTIL_H
#define _UTIL_H
#include <linux/kernel.h>
#include <linux/delay.h>
#include "spu.h"
extern int flow_debug_logging;
extern int packet_debug_logging;
extern int debug_logging_sleep;
#ifdef DEBUG
#define flow_log(...) \
do { \
if (flow_debug_logging) { \
printk(__VA_ARGS__); \
if (debug_logging_sleep) \
msleep(debug_logging_sleep); \
} \
} while (0)
#define flow_dump(msg, var, var_len) \
do { \
if (flow_debug_logging) { \
print_hex_dump(KERN_ALERT, msg, DUMP_PREFIX_NONE, \
16, 1, var, var_len, false); \
if (debug_logging_sleep) \
msleep(debug_logging_sleep); \
} \
} while (0)
#define packet_log(...) \
do { \
if (packet_debug_logging) { \
printk(__VA_ARGS__); \
if (debug_logging_sleep) \
msleep(debug_logging_sleep); \
} \
} while (0)
#define packet_dump(msg, var, var_len) \
do { \
if (packet_debug_logging) { \
print_hex_dump(KERN_ALERT, msg, DUMP_PREFIX_NONE, \
16, 1, var, var_len, false); \
if (debug_logging_sleep) \
msleep(debug_logging_sleep); \
} \
} while (0)
void __dump_sg(struct scatterlist *sg, unsigned int skip, unsigned int len);
#define dump_sg(sg, skip, len) __dump_sg(sg, skip, len)
#else /* !DEBUG_ON */
#define flow_log(...) do {} while (0)
#define flow_dump(msg, var, var_len) do {} while (0)
#define packet_log(...) do {} while (0)
#define packet_dump(msg, var, var_len) do {} while (0)
#define dump_sg(sg, skip, len) do {} while (0)
#endif /* DEBUG_ON */
int spu_sg_at_offset(struct scatterlist *sg, unsigned int skip,
struct scatterlist **sge, unsigned int *sge_offset);
/* Copy sg data, from skip, length len, to dest */
void sg_copy_part_to_buf(struct scatterlist *src, u8 *dest,
unsigned int len, unsigned int skip);
/* Copy src into scatterlist from offset, length len */
void sg_copy_part_from_buf(struct scatterlist *dest, u8 *src,
unsigned int len, unsigned int skip);
int spu_sg_count(struct scatterlist *sg_list, unsigned int skip, int nbytes);
u32 spu_msg_sg_add(struct scatterlist **to_sg,
struct scatterlist **from_sg, u32 *skip,
u8 from_nents, u32 tot_len);
void add_to_ctr(u8 *ctr_pos, unsigned int increment);
/* do a synchronous decrypt operation */
int do_decrypt(char *alg_name,
void *key_ptr, unsigned int key_len,
void *iv_ptr, void *src_ptr, void *dst_ptr,
unsigned int block_len);
/* produce a message digest from data of length n bytes */
int do_shash(unsigned char *name, unsigned char *result,
const u8 *data1, unsigned int data1_len,
const u8 *data2, unsigned int data2_len,
const u8 *key, unsigned int key_len);
char *spu_alg_name(enum spu_cipher_alg alg, enum spu_cipher_mode mode);
void spu_setup_debugfs(void);
void spu_free_debugfs(void);
void format_value_ccm(unsigned int val, u8 *buf, u8 len);
#endif
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