1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright (c) Intel Corporation. 3 * All rights reserved. 4 */ 5 6 #ifndef SPDK_VBDEV_SPLIT_H 7 #define SPDK_VBDEV_SPLIT_H 8 9 #include "spdk/bdev_module.h" 10 11 /** 12 * Add given disk name to split config. If bdev with \c base_bdev_name name 13 * exist the split bdevs will be created right away, if not the split bdevs will 14 * be created when base bdev became be available (during examination process). 15 * 16 * \param base_bdev_name Base bdev name 17 * \param split_count number of splits to be created. 18 * \param split_size_mb size of each bdev. If 0 use base bdev size / split_count 19 * \return value >= 0 - number of splits create. Negative errno code on error. 20 */ 21 int create_vbdev_split(const char *base_bdev_name, unsigned split_count, uint64_t split_size_mb); 22 23 /** 24 * Remove all created split bdevs and split config. 25 * 26 * \param base_bdev_name base bdev name 27 * \return 0 on success or negative errno value. 28 */ 29 int vbdev_split_destruct(const char *base_bdev_name); 30 31 /** 32 * Get the spdk_bdev_part_base associated with the given split base_bdev. 33 * 34 * \param base_bdev Bdev to get the part_base from 35 * \return pointer to the associated spdk_bdev_part_base 36 * \return NULL if the base_bdev is not being split by the split module 37 */ 38 struct spdk_bdev_part_base *vbdev_split_get_part_base(struct spdk_bdev *base_bdev); 39 40 #endif /* SPDK_VBDEV_SPLIT_H */ 41