numam-spdk/lib/bdev/nvme/common.c
Maciej Szwed 71b08028e2 bdev/nvme: Move functions related to NVMe controller to common.c
Functions moved in this patch may be used in future by
other NVMe based bdevs.

Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: I975b61b7f78855e67d65ab7d9fd9f5dd859ac570
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/443753
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
2019-03-08 12:47:53 +00:00

112 lines
3.4 KiB
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);
}
}