Spdk/module/bdev/zone_block/vbdev_zone_block.c

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/*-
* 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/stdinc.h"
#include "vbdev_zone_block.h"
#include "spdk/config.h"
#include "spdk/nvme.h"
#include "spdk_internal/log.h"
int
spdk_vbdev_zone_block_create(const char *bdev_name, const char *vbdev_name, uint64_t zone_capacity,
uint64_t optimal_open_zones)
{
struct spdk_bdev *bdev = NULL;
int rc = 0;
bdev = spdk_bdev_get_by_name(bdev_name);
if (!bdev) {
SPDK_ERRLOG("Base bdev (%s) doesn't exist\n", bdev_name);
return -ENODEV;
}
if (spdk_bdev_is_zoned(bdev)) {
SPDK_ERRLOG("Base bdev %s is already a zoned bdev\n", bdev_name);
return -EEXIST;
}
if (zone_capacity == 0) {
SPDK_ERRLOG("Zone capacity can't be 0\n");
return -EINVAL;
}
if (optimal_open_zones == 0) {
SPDK_ERRLOG("Optimal open zones can't be 0\n");
return -EINVAL;
}
return rc;
}
void
spdk_vbdev_zone_block_delete(const char *name, spdk_bdev_unregister_cb cb_fn, void *cb_arg)
{
cb_fn(cb_arg, 0);
}
SPDK_LOG_REGISTER_COMPONENT("vbdev_zone_block", SPDK_LOG_VBDEV_ZONE_BLOCK)