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/*-
* 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_COPY_ENGINE_H
#define SPDK_INTERNAL_COPY_ENGINE_H
#include "spdk/stdinc.h"
#include "spdk/copy_engine.h"
#include "spdk/queue.h"
struct spdk_copy_task {
spdk_copy_completion_cb cb;
uint8_t offload_ctx[0];
};
struct spdk_copy_engine {
int (*copy)(void *cb_arg, struct spdk_io_channel *ch, void *dst, void *src,
uint64_t nbytes, spdk_copy_completion_cb cb);
int (*fill)(void *cb_arg, struct spdk_io_channel *ch, void *dst, uint8_t fill,
uint64_t nbytes, spdk_copy_completion_cb cb);
struct spdk_io_channel *(*get_io_channel)(void);
};
struct spdk_copy_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);
size_t (*get_ctx_size)(void);
TAILQ_ENTRY(spdk_copy_module_if) tailq;
};
void spdk_copy_engine_register(struct spdk_copy_engine *copy_engine);
void spdk_copy_module_list_add(struct spdk_copy_module_if *copy_module);
#define SPDK_COPY_MODULE_REGISTER(init_fn, fini_fn, config_fn, ctx_size_fn) \
static struct spdk_copy_module_if init_fn ## _if = { \
.module_init = init_fn, \
.module_fini = fini_fn, \
.config_text = config_fn, \
.get_ctx_size = ctx_size_fn, \
}; \
__attribute__((constructor)) static void init_fn ## _init(void) \
{ \
spdk_copy_module_list_add(&init_fn ## _if); \
}
#endif
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