xref: /spdk/module/event/subsystems/iobuf/iobuf.c (revision 42d1bd28396630ca9cfb81bf7934fb8872df47f0)

/*   SPDX-License-Identifier: BSD-3-Clause
 *   Copyright (C) 2022 Intel Corporation.
 *   All rights reserved.
 */

#include "spdk/stdinc.h"
#include "spdk/bdev.h"
#include "spdk/log.h"
#include "spdk/thread.h"
#include "spdk_internal/init.h"

static void
iobuf_subsystem_initialize(void)
{
	int rc;

	rc = spdk_iobuf_initialize();
	if (rc != 0) {
		SPDK_ERRLOG("Failed to initialize iobuf\n");
	}

	spdk_subsystem_init_next(rc);
}

static void
iobuf_finish_cb(void *ctx)
{
	spdk_subsystem_fini_next();
}

static void
iobuf_subsystem_finish(void)
{
	spdk_iobuf_finish(iobuf_finish_cb, NULL);
}

static void
iobuf_write_config_json(struct spdk_json_write_ctx *w)
{
	struct spdk_iobuf_opts opts;

	spdk_iobuf_get_opts(&opts, sizeof(opts));

	spdk_json_write_array_begin(w);

	spdk_json_write_object_begin(w);
	spdk_json_write_named_string(w, "method", "iobuf_set_options");

	spdk_json_write_named_object_begin(w, "params");
	spdk_json_write_named_uint64(w, "small_pool_count", opts.small_pool_count);
	spdk_json_write_named_uint64(w, "large_pool_count", opts.large_pool_count);
	spdk_json_write_named_uint32(w, "small_bufsize", opts.small_bufsize);
	spdk_json_write_named_uint32(w, "large_bufsize", opts.large_bufsize);
	spdk_json_write_named_bool(w, "enable_numa", opts.enable_numa);
	spdk_json_write_object_end(w);
	spdk_json_write_object_end(w);

	spdk_json_write_array_end(w);
}

static struct spdk_subsystem g_subsystem_iobuf = {
	.name = "iobuf",
	.init = iobuf_subsystem_initialize,
	.fini = iobuf_subsystem_finish,
	.write_config_json = iobuf_write_config_json,
};

SPDK_SUBSYSTEM_REGISTER(g_subsystem_iobuf);