8887697f8c
In addition to the lvolstore uuid, add a per-lvol uuid for bdev identification. The lvol uuid is stored as an xattr for each lvol blob; if an lvol blob without a uuid xattr is encountered, the lvol bdev will not report a uuid for now (it will be set to all zeroes, which will be treated as no uuid available by the generic bdev layer). Change-Id: If00221383a12d62234fc085d56e257dd48053103 Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com> Reviewed-on: https://review.gerrithub.io/402973 Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
122 lines
3.7 KiB
C
122 lines
3.7 KiB
C
/*-
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef SPDK_INTERNAL_LVOLSTORE_H
|
|
#define SPDK_INTERNAL_LVOLSTORE_H
|
|
|
|
#include "spdk/blob.h"
|
|
#include "spdk/lvol.h"
|
|
#include "spdk/uuid.h"
|
|
#include "spdk_internal/bdev.h"
|
|
|
|
/* Default size of blobstore cluster */
|
|
#define SPDK_LVS_OPTS_CLUSTER_SZ (4 * 1024 * 1024)
|
|
|
|
struct spdk_lvs_req {
|
|
spdk_lvs_op_complete cb_fn;
|
|
void *cb_arg;
|
|
};
|
|
|
|
struct spdk_lvol_req {
|
|
spdk_lvol_op_complete cb_fn;
|
|
void *cb_arg;
|
|
struct spdk_lvol *lvol;
|
|
char name[SPDK_LVOL_NAME_MAX];
|
|
};
|
|
|
|
struct spdk_lvs_with_handle_req {
|
|
spdk_lvs_op_with_handle_complete cb_fn;
|
|
void *cb_arg;
|
|
struct spdk_lvol_store *lvol_store;
|
|
struct spdk_bs_dev *bs_dev;
|
|
struct spdk_bdev *base_bdev;
|
|
int lvserrno;
|
|
};
|
|
|
|
struct spdk_lvs_destroy_req {
|
|
spdk_lvs_op_complete cb_fn;
|
|
void *cb_arg;
|
|
struct spdk_lvol_store *lvs;
|
|
};
|
|
|
|
struct spdk_lvol_with_handle_req {
|
|
spdk_lvol_op_with_handle_complete cb_fn;
|
|
void *cb_arg;
|
|
struct spdk_lvol *lvol;
|
|
};
|
|
|
|
struct spdk_lvol_store {
|
|
struct spdk_bs_dev *bs_dev;
|
|
struct spdk_blob_store *blobstore;
|
|
struct spdk_blob *super_blob;
|
|
spdk_blob_id super_blob_id;
|
|
struct spdk_uuid uuid;
|
|
struct spdk_lvs_req *destruct_req;
|
|
int lvol_count;
|
|
int lvols_opened;
|
|
bool destruct;
|
|
TAILQ_HEAD(, spdk_lvol) lvols;
|
|
bool on_list;
|
|
TAILQ_ENTRY(spdk_lvol_store) link;
|
|
char name[SPDK_LVS_NAME_MAX];
|
|
};
|
|
|
|
struct spdk_lvol {
|
|
struct spdk_lvol_store *lvol_store;
|
|
struct spdk_blob *blob;
|
|
uint64_t num_clusters;
|
|
spdk_blob_id blob_id;
|
|
char *unique_id;
|
|
char name[SPDK_LVOL_NAME_MAX];
|
|
struct spdk_uuid uuid;
|
|
char uuid_str[SPDK_UUID_STRING_LEN];
|
|
bool close_only;
|
|
bool thin_provision;
|
|
struct spdk_bdev *bdev;
|
|
int ref_count;
|
|
bool action_in_progress;
|
|
TAILQ_ENTRY(spdk_lvol) link;
|
|
};
|
|
|
|
struct lvol_task {
|
|
enum spdk_bdev_io_status status;
|
|
};
|
|
|
|
struct lvol_store_bdev *vbdev_lvol_store_first(void);
|
|
struct lvol_store_bdev *vbdev_lvol_store_next(struct lvol_store_bdev *prev);
|
|
|
|
int spdk_lvol_resize(struct spdk_lvol *lvol, uint64_t sz, spdk_lvol_op_complete cb_fn,
|
|
void *cb_arg);
|
|
|
|
#endif /* SPDK_INTERNAL_LVOLSTORE_H */
|