From e6918187568dbd01842d8d1d2c808ce16a894239 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 21 Apr 2024 13:54:28 +0200 Subject: Adding upstream version 18.2.2. Signed-off-by: Daniel Baumann --- src/spdk/module/bdev/split/vbdev_split.h | 68 ++++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 src/spdk/module/bdev/split/vbdev_split.h (limited to 'src/spdk/module/bdev/split/vbdev_split.h') diff --git a/src/spdk/module/bdev/split/vbdev_split.h b/src/spdk/module/bdev/split/vbdev_split.h new file mode 100644 index 000000000..f468f2414 --- /dev/null +++ b/src/spdk/module/bdev/split/vbdev_split.h @@ -0,0 +1,68 @@ +/*- + * 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. + */ + +#ifndef SPDK_VBDEV_SPLIT_H +#define SPDK_VBDEV_SPLIT_H + +#include "spdk/bdev_module.h" + +/** + * Add given disk name to split config. If bdev with \c base_bdev_name name + * exist the split bdevs will be created right away, if not the split bdevs will + * be created when base bdev became be available (during examination process). + * + * \param base_bdev_name Base bdev name + * \param split_count number of splits to be created. + * \param split_size_mb size of each bdev. If 0 use base bdev size / split_count + * \return value >= 0 - number of splits create. Negative errno code on error. + */ +int create_vbdev_split(const char *base_bdev_name, unsigned split_count, uint64_t split_size_mb); + +/** + * Remove all created split bdevs and split config. + * + * \param base_bdev_name base bdev name + * \return 0 on success or negative errno value. + */ +int vbdev_split_destruct(const char *base_bdev_name); + +/** + * Get the spdk_bdev_part_base associated with the given split base_bdev. + * + * \param base_bdev Bdev to get the part_base from + * \return pointer to the associated spdk_bdev_part_base + * \return NULL if the base_bdev is not being split by the split module + */ +struct spdk_bdev_part_base *vbdev_split_get_part_base(struct spdk_bdev *base_bdev); + +#endif /* SPDK_VBDEV_SPLIT_H */ -- cgit v1.2.3