bcff4c89b8
This will become the public interface for implementing bdev modules. Right now the file exposes too much of the guts of the bdev layer to modules, so it needs to be stripped down. Change-Id: Ie8b8c3271d51fdb8d0c24a80244b3f3e510c8790 Signed-off-by: Ben Walker <benjamin.walker@intel.com> Reviewed-on: https://review.gerrithub.io/412297 Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com> Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
127 lines
3.9 KiB
C
127 lines
3.9 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_INTERNAL_LVOLSTORE_H
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#define SPDK_INTERNAL_LVOLSTORE_H
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#include "spdk/blob.h"
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#include "spdk/lvol.h"
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#include "spdk/uuid.h"
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#include "spdk/bdev_module.h"
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/* Default size of blobstore cluster */
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#define SPDK_LVS_OPTS_CLUSTER_SZ (4 * 1024 * 1024)
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struct spdk_lvs_req {
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spdk_lvs_op_complete cb_fn;
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void *cb_arg;
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struct spdk_lvol_store *lvol_store;
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int lvserrno;
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};
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struct spdk_lvol_req {
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spdk_lvol_op_complete cb_fn;
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void *cb_arg;
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struct spdk_lvol *lvol;
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size_t sz;
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struct spdk_io_channel *channel;
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char name[SPDK_LVOL_NAME_MAX];
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};
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struct spdk_lvs_with_handle_req {
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spdk_lvs_op_with_handle_complete cb_fn;
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void *cb_arg;
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struct spdk_lvol_store *lvol_store;
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struct spdk_bs_dev *bs_dev;
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struct spdk_bdev *base_bdev;
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int lvserrno;
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};
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struct spdk_lvs_destroy_req {
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spdk_lvs_op_complete cb_fn;
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void *cb_arg;
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struct spdk_lvol_store *lvs;
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};
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struct spdk_lvol_with_handle_req {
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spdk_lvol_op_with_handle_complete cb_fn;
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void *cb_arg;
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struct spdk_lvol *lvol;
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};
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struct spdk_lvol_store {
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struct spdk_bs_dev *bs_dev;
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struct spdk_blob_store *blobstore;
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struct spdk_blob *super_blob;
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spdk_blob_id super_blob_id;
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struct spdk_uuid uuid;
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struct spdk_lvs_req *destruct_req;
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int lvol_count;
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int lvols_opened;
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bool destruct;
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TAILQ_HEAD(, spdk_lvol) lvols;
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TAILQ_HEAD(, spdk_lvol) pending_lvols;
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bool on_list;
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TAILQ_ENTRY(spdk_lvol_store) link;
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char name[SPDK_LVS_NAME_MAX];
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char new_name[SPDK_LVS_NAME_MAX];
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};
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struct spdk_lvol {
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struct spdk_lvol_store *lvol_store;
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struct spdk_blob *blob;
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spdk_blob_id blob_id;
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char *unique_id;
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char name[SPDK_LVOL_NAME_MAX];
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struct spdk_uuid uuid;
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char uuid_str[SPDK_UUID_STRING_LEN];
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bool close_only;
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bool thin_provision;
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struct spdk_bdev *bdev;
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int ref_count;
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bool action_in_progress;
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TAILQ_ENTRY(spdk_lvol) link;
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};
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struct lvol_task {
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enum spdk_bdev_io_status status;
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};
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struct lvol_store_bdev *vbdev_lvol_store_first(void);
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struct lvol_store_bdev *vbdev_lvol_store_next(struct lvol_store_bdev *prev);
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void spdk_lvol_resize(struct spdk_lvol *lvol, uint64_t sz, spdk_lvol_op_complete cb_fn,
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void *cb_arg);
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#endif /* SPDK_INTERNAL_LVOLSTORE_H */
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