aa3cf73311
* Moved code around in accel framework as the sw implementation is included in the same file (it's always present) so that its easier to differentiate framework functions from sw accel * Renamed some functions for the same reason * Added/edit comments to clarify things All in prep for extending the API to more functions. Signed-off-by: paul luse <paul.e.luse@intel.com> Change-Id: I465ee743d999999df4c06e3f68feddcd73c6e6a4 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/580 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com> Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
96 lines
3.5 KiB
C
96 lines
3.5 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SPDK_INTERNAL_ACCEL_ENGINE_H
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#define SPDK_INTERNAL_ACCEL_ENGINE_H
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#include "spdk/stdinc.h"
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#include "spdk/accel_engine.h"
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#include "spdk/queue.h"
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struct spdk_accel_task {
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spdk_accel_completion_cb cb;
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uint8_t offload_ctx[0];
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};
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struct spdk_accel_engine {
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int (*copy)(void *cb_arg, struct spdk_io_channel *ch, void *dst, void *src,
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uint64_t nbytes, spdk_accel_completion_cb cb);
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int (*fill)(void *cb_arg, struct spdk_io_channel *ch, void *dst, uint8_t fill,
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uint64_t nbytes, spdk_accel_completion_cb cb);
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struct spdk_io_channel *(*get_io_channel)(void);
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};
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struct spdk_accel_module_if {
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/** Initialization function for the module. Called by the spdk
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* application during startup.
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*
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* Modules are required to define this function.
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*/
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int (*module_init)(void);
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/** Finish function for the module. Called by the spdk application
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* before the spdk application exits to perform any necessary cleanup.
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*
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* Modules are not required to define this function.
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*/
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void (*module_fini)(void *ctx);
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/** Function called to return a text string representing the
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* module's configuration options for inclusion in an
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* spdk configuration file.
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*/
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void (*config_text)(FILE *fp);
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size_t (*get_ctx_size)(void);
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TAILQ_ENTRY(spdk_accel_module_if) tailq;
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};
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void spdk_accel_hw_engine_register(struct spdk_accel_engine *accel_engine);
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void spdk_accel_module_list_add(struct spdk_accel_module_if *accel_module);
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#define SPDK_ACCEL_MODULE_REGISTER(init_fn, fini_fn, config_fn, ctx_size_fn) \
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static struct spdk_accel_module_if init_fn ## _if = { \
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.module_init = init_fn, \
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.module_fini = fini_fn, \
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.config_text = config_fn, \
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.get_ctx_size = ctx_size_fn, \
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}; \
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__attribute__((constructor)) static void init_fn ## _init(void) \
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{ \
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spdk_accel_module_list_add(&init_fn ## _if); \
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}
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#endif
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