1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
/*-
* BSD LICENSE
*
* Copyright (c) Intel Corporation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SPDK_INTERNAL_ACCEL_ENGINE_H
#define SPDK_INTERNAL_ACCEL_ENGINE_H
#include "spdk/stdinc.h"
#include "spdk/accel_engine.h"
#include "spdk/queue.h"
struct spdk_accel_task {
spdk_accel_completion_cb cb;
void *cb_arg;
uint8_t offload_ctx[0];
};
struct spdk_accel_engine {
uint64_t (*get_capabilities)(void);
int (*copy)(struct spdk_io_channel *ch, void *dst, void *src,
uint64_t nbytes, spdk_accel_completion_cb cb_fn, void *cb_arg);
int (*dualcast)(struct spdk_io_channel *ch, void *dst1, void *dst2, void *src,
uint64_t nbytes, spdk_accel_completion_cb cb_fn, void *cb_arg);
uint32_t (*batch_get_max)(void);
struct spdk_accel_batch *(*batch_create)(struct spdk_io_channel *ch);
int (*batch_prep_copy)(struct spdk_io_channel *ch, struct spdk_accel_batch *batch,
void *dst, void *src, uint64_t nbytes, spdk_accel_completion_cb cb_fn, void *cb_arg);
int (*batch_prep_dualcast)(struct spdk_io_channel *ch, struct spdk_accel_batch *batch,
void *dst1, void *dst2, void *src, uint64_t nbytes,
spdk_accel_completion_cb cb_fn, void *cb_arg);
int (*batch_prep_compare)(struct spdk_io_channel *ch, struct spdk_accel_batch *batch,
void *src1, void *src2, uint64_t nbytes, spdk_accel_completion_cb cb_fn, void *cb_arg);
int (*batch_prep_fill)(struct spdk_io_channel *ch, struct spdk_accel_batch *batch,
void *dst, uint8_t fill, uint64_t nbytes, spdk_accel_completion_cb cb_fn, void *cb_arg);
int (*batch_prep_crc32c)(struct spdk_io_channel *ch, struct spdk_accel_batch *batch,
uint32_t *dst, void *src, uint32_t seed, uint64_t nbytes,
spdk_accel_completion_cb cb_fn, void *cb_arg);
int (*batch_submit)(struct spdk_io_channel *ch, struct spdk_accel_batch *batch,
spdk_accel_completion_cb cb_fn, void *cb_arg);
int (*batch_cancel)(struct spdk_io_channel *ch, struct spdk_accel_batch *batch);
int (*compare)(struct spdk_io_channel *ch, void *src1, void *src2,
uint64_t nbytes, spdk_accel_completion_cb cb_fn, void *cb_arg);
int (*fill)(struct spdk_io_channel *ch, void *dst, uint8_t fill,
uint64_t nbytes, spdk_accel_completion_cb cb_fn, void *cb_arg);
int (*crc32c)(struct spdk_io_channel *ch, uint32_t *dst, void *src,
uint32_t seed, uint64_t nbytes, spdk_accel_completion_cb cb_fn, void *cb_arg);
struct spdk_io_channel *(*get_io_channel)(void);
};
struct spdk_accel_module_if {
/** Initialization function for the module. Called by the spdk
* application during startup.
*
* Modules are required to define this function.
*/
int (*module_init)(void);
/** Finish function for the module. Called by the spdk application
* before the spdk application exits to perform any necessary cleanup.
*
* Modules are not required to define this function.
*/
void (*module_fini)(void *ctx);
/** Function called to return a text string representing the
* module's configuration options for inclusion in an
* spdk configuration file.
*/
void (*config_text)(FILE *fp);
/**
* Write Acceleration module configuration into provided JSON context.
*/
void (*write_config_json)(struct spdk_json_write_ctx *w);
/**
* Returns the allocation size required for the modules to use for context.
*/
size_t (*get_ctx_size)(void);
TAILQ_ENTRY(spdk_accel_module_if) tailq;
};
void spdk_accel_hw_engine_register(struct spdk_accel_engine *accel_engine);
void spdk_accel_module_list_add(struct spdk_accel_module_if *accel_module);
#define SPDK_ACCEL_MODULE_REGISTER(init_fn, fini_fn, config_fn, config_json, ctx_size_fn) \
static struct spdk_accel_module_if init_fn ## _if = { \
.module_init = init_fn, \
.module_fini = fini_fn, \
.config_text = config_fn, \
.write_config_json = config_json, \
.get_ctx_size = ctx_size_fn, \
}; \
__attribute__((constructor)) static void init_fn ## _init(void) \
{ \
spdk_accel_module_list_add(&init_fn ## _if); \
}
#endif
|
