a5dbccf02b
Split bdevs now can be create using "create_split_bdev". To keep backward compatibility, this call will not fail if base bdev is not available yet instead will add base bdev name to its live configuration and create splits when base bdev will be created (during examin process). Change-Id: Ie26ffc0e947f6d88ff56830dd50999795283df2e Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com> Reviewed-on: https://review.gerrithub.io/404164 Reviewed-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com> Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
60 lines
2.5 KiB
C
60 lines
2.5 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SPDK_VBDEV_SPLIT_H
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#define SPDK_VBDEV_SPLIT_H
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#include "spdk_internal/bdev.h"
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/**
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* Add given disk name to split config. If bdev with \c base_bdev_name name
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* exist the split bdevs will be created right away, if not the split bdevs will
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* be created when base bdev became be available (during examination process).
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*
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* \param base_bdev_name Base bdev name
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* \param split_count number of splits to be created.
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* \param split_size_mb size of each bdev. If 0 use base bdev size / split_count
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* \return value >= 0 - number of splits create. Negative errno code on error.
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*/
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int create_vbdev_split(const char *base_bdev_name, unsigned split_count, uint64_t split_size_mb);
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/**
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* Remove all created split bdevs and split config.
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*
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* \param base_bdev_name base bdev name
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* \return 0 on succes or negative errno value.
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*/
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int spdk_vbdev_split_destruct(const char *base_bdev_name);
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#endif // SPDK_VBDEV_SPLIT_H
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