b5d68d5934
Signed-off-by: Seth Howell <seth.howell@intel.com> Change-Id: Idb33816e5b66266987845172c27c87667ac0a596 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/2437 Community-CI: Mellanox Build Bot Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com> Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
151 lines
4.8 KiB
C
151 lines
4.8 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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#include "spdk/stdinc.h"
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#include "spdk/blob.h"
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#include "spdk/log.h"
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#include "blobstore.h"
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static void
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blob_bs_dev_write(struct spdk_bs_dev *dev, struct spdk_io_channel *channel, void *payload,
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uint64_t lba, uint32_t lba_count,
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struct spdk_bs_dev_cb_args *cb_args)
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{
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cb_args->cb_fn(cb_args->channel, cb_args->cb_arg, -EPERM);
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assert(false);
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}
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static void
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blob_bs_dev_writev(struct spdk_bs_dev *dev, struct spdk_io_channel *channel,
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struct iovec *iov, int iovcnt,
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uint64_t lba, uint32_t lba_count,
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struct spdk_bs_dev_cb_args *cb_args)
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{
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cb_args->cb_fn(cb_args->channel, cb_args->cb_arg, -EPERM);
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assert(false);
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}
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static void
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blob_bs_dev_write_zeroes(struct spdk_bs_dev *dev, struct spdk_io_channel *channel,
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uint64_t lba, uint32_t lba_count,
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struct spdk_bs_dev_cb_args *cb_args)
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{
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cb_args->cb_fn(cb_args->channel, cb_args->cb_arg, -EPERM);
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assert(false);
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}
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static void
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blob_bs_dev_unmap(struct spdk_bs_dev *dev, struct spdk_io_channel *channel,
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uint64_t lba, uint32_t lba_count,
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struct spdk_bs_dev_cb_args *cb_args)
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{
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cb_args->cb_fn(cb_args->channel, cb_args->cb_arg, -EPERM);
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assert(false);
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}
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static void
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blob_bs_dev_read_cpl(void *cb_arg, int bserrno)
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{
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struct spdk_bs_dev_cb_args *cb_args = (struct spdk_bs_dev_cb_args *)cb_arg;
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cb_args->cb_fn(cb_args->channel, cb_args->cb_arg, bserrno);
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}
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static inline void
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blob_bs_dev_read(struct spdk_bs_dev *dev, struct spdk_io_channel *channel, void *payload,
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uint64_t lba, uint32_t lba_count, struct spdk_bs_dev_cb_args *cb_args)
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{
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struct spdk_blob_bs_dev *b = (struct spdk_blob_bs_dev *)dev;
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spdk_blob_io_read(b->blob, channel, payload, lba, lba_count,
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blob_bs_dev_read_cpl, cb_args);
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}
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static inline void
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blob_bs_dev_readv(struct spdk_bs_dev *dev, struct spdk_io_channel *channel,
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struct iovec *iov, int iovcnt,
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uint64_t lba, uint32_t lba_count, struct spdk_bs_dev_cb_args *cb_args)
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{
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struct spdk_blob_bs_dev *b = (struct spdk_blob_bs_dev *)dev;
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spdk_blob_io_readv(b->blob, channel, iov, iovcnt, lba, lba_count,
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blob_bs_dev_read_cpl, cb_args);
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}
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static void
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blob_bs_dev_destroy_cpl(void *cb_arg, int bserrno)
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{
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if (bserrno != 0) {
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SPDK_ERRLOG("Error on blob_bs_dev destroy: %d", bserrno);
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}
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/* Free blob_bs_dev */
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free(cb_arg);
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}
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static void
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blob_bs_dev_destroy(struct spdk_bs_dev *bs_dev)
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{
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struct spdk_blob_bs_dev *b = (struct spdk_blob_bs_dev *)bs_dev;
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spdk_blob_close(b->blob, blob_bs_dev_destroy_cpl, b);
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}
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struct spdk_bs_dev *
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bs_create_blob_bs_dev(struct spdk_blob *blob)
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{
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struct spdk_blob_bs_dev *b;
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b = calloc(1, sizeof(*b));
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if (b == NULL) {
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return NULL;
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}
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/* snapshot blob */
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b->bs_dev.blockcnt = blob->active.num_clusters *
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blob->bs->pages_per_cluster * bs_io_unit_per_page(blob->bs);
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b->bs_dev.blocklen = spdk_bs_get_io_unit_size(blob->bs);
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b->bs_dev.create_channel = NULL;
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b->bs_dev.destroy_channel = NULL;
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b->bs_dev.destroy = blob_bs_dev_destroy;
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b->bs_dev.write = blob_bs_dev_write;
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b->bs_dev.writev = blob_bs_dev_writev;
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b->bs_dev.read = blob_bs_dev_read;
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b->bs_dev.readv = blob_bs_dev_readv;
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b->bs_dev.write_zeroes = blob_bs_dev_write_zeroes;
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b->bs_dev.unmap = blob_bs_dev_unmap;
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b->blob = blob;
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return &b->bs_dev;
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}
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