6c54c13cd4
First this change moves spdk_subsystem_fini() to trigger on spdk_app_stop(). This ensures that spdk_subsystem_fini() is called before reactors are stopped in spdk_reactors_stop(). Finish paths for subsystems, bdevs and copy engine is now asynchronous. Each of those three mentioned have to make sure they are asynchronous as well. Only bdev that currently has requirement for asynchronous finish are logical volume. Thus the change in vbdev_lvol.c making it move to next bdev module only after all lvol stores were unloaded. Fio_plugin finish of bdev and copy_engine was removed for now. Next patch in series adds it back with async support. Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com> Change-Id: I80ee2d084f3d82c50bf1329e08996604ae61b1b3 Reviewed-on: https://review.gerrithub.io/381536 Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
96 lines
3.6 KiB
C
96 lines
3.6 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_COPY_ENGINE_H
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#define SPDK_INTERNAL_COPY_ENGINE_H
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#include "spdk/stdinc.h"
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#include "spdk/copy_engine.h"
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#include "spdk/queue.h"
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struct spdk_copy_task {
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spdk_copy_completion_cb cb;
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uint8_t offload_ctx[0];
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};
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struct spdk_copy_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_copy_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_copy_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_copy_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_copy_module_if) tailq;
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};
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void spdk_copy_engine_register(struct spdk_copy_engine *copy_engine);
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void spdk_copy_module_list_add(struct spdk_copy_module_if *copy_module);
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#define SPDK_COPY_MODULE_REGISTER(init_fn, fini_fn, config_fn, ctx_size_fn) \
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static struct spdk_copy_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_copy_module_list_add(&init_fn ## _if); \
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}
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#endif
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