/*- * 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 */