bump version to 15.2.11-pve1

[ceph.git] / ceph / src / spdk / lib / bdev / nvme / common.c

/*-
 *   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.
 */

#include "spdk/env.h"
#include "common.h"

struct nvme_bdev_ctrlrs g_nvme_bdev_ctrlrs = TAILQ_HEAD_INITIALIZER(g_nvme_bdev_ctrlrs);
pthread_mutex_t g_bdev_nvme_mutex = PTHREAD_MUTEX_INITIALIZER;

struct nvme_bdev_ctrlr *
nvme_bdev_ctrlr_get(const struct spdk_nvme_transport_id *trid)
{
	struct nvme_bdev_ctrlr	*nvme_bdev_ctrlr;

	TAILQ_FOREACH(nvme_bdev_ctrlr, &g_nvme_bdev_ctrlrs, tailq) {
		if (spdk_nvme_transport_id_compare(trid, &nvme_bdev_ctrlr->trid) == 0) {
			return nvme_bdev_ctrlr;
		}
	}

	return NULL;
}

struct nvme_bdev_ctrlr *
nvme_bdev_ctrlr_get_by_name(const char *name)
{
	struct nvme_bdev_ctrlr *nvme_bdev_ctrlr;

	if (name == NULL) {
		return NULL;
	}

	TAILQ_FOREACH(nvme_bdev_ctrlr, &g_nvme_bdev_ctrlrs, tailq) {
		if (strcmp(name, nvme_bdev_ctrlr->name) == 0) {
			return nvme_bdev_ctrlr;
		}
	}

	return NULL;
}

struct nvme_bdev_ctrlr *
nvme_bdev_first_ctrlr(void)
{
	return TAILQ_FIRST(&g_nvme_bdev_ctrlrs);
}

struct nvme_bdev_ctrlr *
nvme_bdev_next_ctrlr(struct nvme_bdev_ctrlr *prev)
{
	return TAILQ_NEXT(prev, tailq);
}

void
nvme_bdev_dump_trid_json(struct spdk_nvme_transport_id *trid, struct spdk_json_write_ctx *w)
{
	const char *trtype_str;
	const char *adrfam_str;

	trtype_str = spdk_nvme_transport_id_trtype_str(trid->trtype);
	if (trtype_str) {
		spdk_json_write_named_string(w, "trtype", trtype_str);
	}

	adrfam_str = spdk_nvme_transport_id_adrfam_str(trid->adrfam);
	if (adrfam_str) {
		spdk_json_write_named_string(w, "adrfam", adrfam_str);
	}

	if (trid->traddr[0] != '\0') {
		spdk_json_write_named_string(w, "traddr", trid->traddr);
	}

	if (trid->trsvcid[0] != '\0') {
		spdk_json_write_named_string(w, "trsvcid", trid->trsvcid);
	}

	if (trid->subnqn[0] != '\0') {
		spdk_json_write_named_string(w, "subnqn", trid->subnqn);
	}
}