Loading...
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright 2016 Broadcom
4 */
5
6#ifndef _UTIL_H
7#define _UTIL_H
8
9#include <linux/kernel.h>
10#include <linux/delay.h>
11
12#include "spu.h"
13
14extern int flow_debug_logging;
15extern int packet_debug_logging;
16extern int debug_logging_sleep;
17
18#ifdef DEBUG
19#define flow_log(...) \
20 do { \
21 if (flow_debug_logging) { \
22 printk(__VA_ARGS__); \
23 if (debug_logging_sleep) \
24 msleep(debug_logging_sleep); \
25 } \
26 } while (0)
27#define flow_dump(msg, var, var_len) \
28 do { \
29 if (flow_debug_logging) { \
30 print_hex_dump(KERN_ALERT, msg, DUMP_PREFIX_NONE, \
31 16, 1, var, var_len, false); \
32 if (debug_logging_sleep) \
33 msleep(debug_logging_sleep); \
34 } \
35 } while (0)
36
37#define packet_log(...) \
38 do { \
39 if (packet_debug_logging) { \
40 printk(__VA_ARGS__); \
41 if (debug_logging_sleep) \
42 msleep(debug_logging_sleep); \
43 } \
44 } while (0)
45#define packet_dump(msg, var, var_len) \
46 do { \
47 if (packet_debug_logging) { \
48 print_hex_dump(KERN_ALERT, msg, DUMP_PREFIX_NONE, \
49 16, 1, var, var_len, false); \
50 if (debug_logging_sleep) \
51 msleep(debug_logging_sleep); \
52 } \
53 } while (0)
54
55void __dump_sg(struct scatterlist *sg, unsigned int skip, unsigned int len);
56
57#define dump_sg(sg, skip, len) __dump_sg(sg, skip, len)
58
59#else /* !DEBUG_ON */
60
61static inline void flow_log(const char *format, ...)
62{
63}
64
65static inline void flow_dump(const char *msg, const void *var, size_t var_len)
66{
67}
68
69static inline void packet_log(const char *format, ...)
70{
71}
72
73static inline void packet_dump(const char *msg, const void *var, size_t var_len)
74{
75}
76
77static inline void dump_sg(struct scatterlist *sg, unsigned int skip,
78 unsigned int len)
79{
80}
81
82#endif /* DEBUG_ON */
83
84int spu_sg_at_offset(struct scatterlist *sg, unsigned int skip,
85 struct scatterlist **sge, unsigned int *sge_offset);
86
87/* Copy sg data, from skip, length len, to dest */
88void sg_copy_part_to_buf(struct scatterlist *src, u8 *dest,
89 unsigned int len, unsigned int skip);
90/* Copy src into scatterlist from offset, length len */
91void sg_copy_part_from_buf(struct scatterlist *dest, u8 *src,
92 unsigned int len, unsigned int skip);
93
94int spu_sg_count(struct scatterlist *sg_list, unsigned int skip, int nbytes);
95u32 spu_msg_sg_add(struct scatterlist **to_sg,
96 struct scatterlist **from_sg, u32 *skip,
97 u8 from_nents, u32 tot_len);
98
99void add_to_ctr(u8 *ctr_pos, unsigned int increment);
100
101/* produce a message digest from data of length n bytes */
102int do_shash(unsigned char *name, unsigned char *result,
103 const u8 *data1, unsigned int data1_len,
104 const u8 *data2, unsigned int data2_len,
105 const u8 *key, unsigned int key_len);
106
107char *spu_alg_name(enum spu_cipher_alg alg, enum spu_cipher_mode mode);
108
109void spu_setup_debugfs(void);
110void spu_free_debugfs(void);
111void format_value_ccm(unsigned int val, u8 *buf, u8 len);
112
113#endif
1/*
2 * Copyright 2016 Broadcom
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License, version 2, as
6 * published by the Free Software Foundation (the "GPL").
7 *
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License version 2 (GPLv2) for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * version 2 (GPLv2) along with this source code.
15 */
16
17#ifndef _UTIL_H
18#define _UTIL_H
19
20#include <linux/kernel.h>
21#include <linux/delay.h>
22
23#include "spu.h"
24
25extern int flow_debug_logging;
26extern int packet_debug_logging;
27extern int debug_logging_sleep;
28
29#ifdef DEBUG
30#define flow_log(...) \
31 do { \
32 if (flow_debug_logging) { \
33 printk(__VA_ARGS__); \
34 if (debug_logging_sleep) \
35 msleep(debug_logging_sleep); \
36 } \
37 } while (0)
38#define flow_dump(msg, var, var_len) \
39 do { \
40 if (flow_debug_logging) { \
41 print_hex_dump(KERN_ALERT, msg, DUMP_PREFIX_NONE, \
42 16, 1, var, var_len, false); \
43 if (debug_logging_sleep) \
44 msleep(debug_logging_sleep); \
45 } \
46 } while (0)
47
48#define packet_log(...) \
49 do { \
50 if (packet_debug_logging) { \
51 printk(__VA_ARGS__); \
52 if (debug_logging_sleep) \
53 msleep(debug_logging_sleep); \
54 } \
55 } while (0)
56#define packet_dump(msg, var, var_len) \
57 do { \
58 if (packet_debug_logging) { \
59 print_hex_dump(KERN_ALERT, msg, DUMP_PREFIX_NONE, \
60 16, 1, var, var_len, false); \
61 if (debug_logging_sleep) \
62 msleep(debug_logging_sleep); \
63 } \
64 } while (0)
65
66void __dump_sg(struct scatterlist *sg, unsigned int skip, unsigned int len);
67
68#define dump_sg(sg, skip, len) __dump_sg(sg, skip, len)
69
70#else /* !DEBUG_ON */
71
72#define flow_log(...) do {} while (0)
73#define flow_dump(msg, var, var_len) do {} while (0)
74#define packet_log(...) do {} while (0)
75#define packet_dump(msg, var, var_len) do {} while (0)
76
77#define dump_sg(sg, skip, len) do {} while (0)
78
79#endif /* DEBUG_ON */
80
81int spu_sg_at_offset(struct scatterlist *sg, unsigned int skip,
82 struct scatterlist **sge, unsigned int *sge_offset);
83
84/* Copy sg data, from skip, length len, to dest */
85void sg_copy_part_to_buf(struct scatterlist *src, u8 *dest,
86 unsigned int len, unsigned int skip);
87/* Copy src into scatterlist from offset, length len */
88void sg_copy_part_from_buf(struct scatterlist *dest, u8 *src,
89 unsigned int len, unsigned int skip);
90
91int spu_sg_count(struct scatterlist *sg_list, unsigned int skip, int nbytes);
92u32 spu_msg_sg_add(struct scatterlist **to_sg,
93 struct scatterlist **from_sg, u32 *skip,
94 u8 from_nents, u32 tot_len);
95
96void add_to_ctr(u8 *ctr_pos, unsigned int increment);
97
98/* do a synchronous decrypt operation */
99int do_decrypt(char *alg_name,
100 void *key_ptr, unsigned int key_len,
101 void *iv_ptr, void *src_ptr, void *dst_ptr,
102 unsigned int block_len);
103
104/* produce a message digest from data of length n bytes */
105int do_shash(unsigned char *name, unsigned char *result,
106 const u8 *data1, unsigned int data1_len,
107 const u8 *data2, unsigned int data2_len,
108 const u8 *key, unsigned int key_len);
109
110char *spu_alg_name(enum spu_cipher_alg alg, enum spu_cipher_mode mode);
111
112void spu_setup_debugfs(void);
113void spu_free_debugfs(void);
114void format_value_ccm(unsigned int val, u8 *buf, u8 len);
115
116#endif