mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
9d12ba86f8
Add Broadcom Secure Processing Unit (SPU) crypto driver for SPU hardware crypto offload. The driver supports ablkcipher, ahash, and aead symmetric crypto operations. Signed-off-by: Steve Lin <steven.lin1@broadcom.com> Signed-off-by: Rob Rice <rob.rice@broadcom.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
117 lines
3.8 KiB
C
117 lines
3.8 KiB
C
/*
|
|
* 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
|