/*- * 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. */ /** \file * Helper library to use spdk_bdev as the backing device for a blobstore */ #ifndef SPDK_BLOB_BDEV_H #define SPDK_BLOB_BDEV_H #include "spdk/stdinc.h" #include "spdk/bdev.h" #ifdef __cplusplus extern "C" { #endif struct spdk_bs_dev; struct spdk_bdev; struct spdk_bdev_module; /** * Create a blobstore block device from a bdev. * * \param bdev_name Name of the bdev to use. * \param event_cb Called when the bdev triggers asynchronous event. * \param event_ctx Argument passed to function event_cb. * \param bs_dev Output parameter for a pointer to the blobstore block device. * * \return 0 if operation is successful, or suitable errno value otherwise. */ int spdk_bdev_create_bs_dev_ext(const char *bdev_name, spdk_bdev_event_cb_t event_cb, void *event_ctx, struct spdk_bs_dev **bs_dev); /** * Claim the bdev module for the given blobstore. * * \param bs_dev Blobstore block device. * \param module Bdev module to claim. * * \return 0 on success, negative errno on failure. */ int spdk_bs_bdev_claim(struct spdk_bs_dev *bs_dev, struct spdk_bdev_module *module); #ifdef __cplusplus } #endif #endif