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+/*-
+ * 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
+ * Logical Volume Interface
+ */
+
+#ifndef SPDK_LVOL_H
+#define SPDK_LVOL_H
+
+#include "spdk/stdinc.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct spdk_bs_dev;
+struct spdk_lvol_store;
+struct spdk_lvol;
+
+/* Must include null terminator. */
+#define SPDK_LVS_NAME_MAX 64
+#define SPDK_LVOL_NAME_MAX 64
+
+/**
+ * Parameters for lvolstore initialization.
+ */
+struct spdk_lvs_opts {
+ uint32_t cluster_sz;
+ char name[SPDK_LVS_NAME_MAX];
+};
+
+/**
+ * Initialize an spdk_lvs_opts structure to the defaults.
+ *
+ * \param opts Pointer to the spdk_lvs_opts structure to initialize.
+ */
+void spdk_lvs_opts_init(struct spdk_lvs_opts *opts);
+
+/**
+ * Callback definition for lvolstore operations, including handle to lvs.
+ *
+ * \param cb_arg Custom arguments
+ * \param lvol_store Handle to lvol_store or NULL when lvserrno is set
+ * \param lvserrno Error
+ */
+typedef void (*spdk_lvs_op_with_handle_complete)(void *cb_arg, struct spdk_lvol_store *lvol_store,
+ int lvserrno);
+
+/**
+ * Callback definition for lvolstore operations without handle.
+ *
+ * \param cb_arg Custom arguments
+ * \param lvserrno Error
+ */
+typedef void (*spdk_lvs_op_complete)(void *cb_arg, int lvserrno);
+
+
+/**
+ * Callback definition for lvol operations with handle to lvol.
+ *
+ * \param cb_arg Custom arguments
+ * \param lvol Handle to lvol or NULL when lvserrno is set
+ * \param lvolerrno Error
+ */
+typedef void (*spdk_lvol_op_with_handle_complete)(void *cb_arg, struct spdk_lvol *lvol,
+ int lvolerrno);
+
+/**
+ * Callback definition for lvol operations without handle to lvol.
+ *
+ * \param cb_arg Custom arguments
+ * \param lvolerrno Error
+ */
+typedef void (*spdk_lvol_op_complete)(void *cb_arg, int lvolerrno);
+
+/**
+ * Initialize lvolstore on given bs_bdev.
+ *
+ * \param bs_dev This is created on the given bdev by using spdk_bdev_create_bs_dev()
+ * beforehand.
+ * \param o Options for lvolstore.
+ * \param cb_fn Completion callback.
+ * \param cb_arg Completion callback custom arguments.
+ *
+ * \return 0 on success, negative errno on failure.
+ */
+int spdk_lvs_init(struct spdk_bs_dev *bs_dev, struct spdk_lvs_opts *o,
+ spdk_lvs_op_with_handle_complete cb_fn, void *cb_arg);
+
+/**
+ * Rename the given lvolstore.
+ *
+ * \param lvs Pointer to lvolstore.
+ * \param new_name New name of lvs.
+ * \param cb_fn Completion callback.
+ * \param cb_arg Completion callback custom arguments.
+ */
+void spdk_lvs_rename(struct spdk_lvol_store *lvs, const char *new_name,
+ spdk_lvs_op_complete cb_fn, void *cb_arg);
+
+/**
+ * Unload lvolstore.
+ *
+ * All lvols have to be closed beforehand, when doing unload.
+ *
+ * \param lvol_store Handle to lvolstore.
+ * \param cb_fn Completion callback.
+ * \param cb_arg Completion callback custom arguments.
+ *
+ * \return 0 on success, negative errno on failure.
+ */
+int spdk_lvs_unload(struct spdk_lvol_store *lvol_store,
+ spdk_lvs_op_complete cb_fn, void *cb_arg);
+
+/**
+ * Destroy lvolstore.
+ *
+ * All lvols have to be closed beforehand, when doing destroy.
+ *
+ * \param lvol_store Handle to lvolstore.
+ * \param cb_fn Completion callback.
+ * \param cb_arg Completion callback custom arguments.
+ *
+ * \return 0 on success, negative errno on failure.
+ */
+int spdk_lvs_destroy(struct spdk_lvol_store *lvol_store,
+ spdk_lvs_op_complete cb_fn, void *cb_arg);
+
+/**
+ * Create lvol on given lvolstore with specified size.
+ *
+ * \param lvs Handle to lvolstore.
+ * \param name Name of lvol.
+ * \param sz size of lvol in bytes.
+ * \param thin_provisioned Enables thin provisioning.
+ * \param cb_fn Completion callback.
+ * \param cb_arg Completion callback custom arguments.
+ *
+ * \return 0 on success, negative errno on failure.
+ */
+int spdk_lvol_create(struct spdk_lvol_store *lvs, const char *name, uint64_t sz,
+ bool thin_provisioned, spdk_lvol_op_with_handle_complete cb_fn, void *cb_arg);
+/**
+ * Create snapshot of given lvol.
+ *
+ * \param lvol Handle to lvol.
+ * \param snapshot_name Name of created snapshot.
+ * \param cb_fn Completion callback.
+ * \param cb_arg Completion callback custom arguments.
+ */
+void spdk_lvol_create_snapshot(struct spdk_lvol *lvol, const char *snapshot_name,
+ spdk_lvol_op_with_handle_complete cb_fn, void *cb_arg);
+
+/**
+ * Create clone of given snapshot.
+ *
+ * \param lvol Handle to lvol snapshot.
+ * \param clone_name Name of created clone.
+ * \param cb_fn Completion callback.
+ * \param cb_arg Completion callback custom arguments.
+ */
+void spdk_lvol_create_clone(struct spdk_lvol *lvol, const char *clone_name,
+ spdk_lvol_op_with_handle_complete cb_fn, void *cb_arg);
+
+/**
+ * Rename lvol with new_name.
+ *
+ * \param lvol Handle to lvol.
+ * \param new_name new name for lvol.
+ * \param cb_fn Completion callback.
+ * \param cb_arg Completion callback custom arguments.
+ */
+void
+spdk_lvol_rename(struct spdk_lvol *lvol, const char *new_name,
+ spdk_lvol_op_complete cb_fn, void *cb_arg);
+
+/**
+ * \brief Returns if it is possible to delete an lvol (i.e. lvol is not a snapshot that have at least one clone).
+ * \param lvol Handle to lvol
+ */
+bool spdk_lvol_deletable(struct spdk_lvol *lvol);
+
+/**
+ * Close lvol and remove information about lvol from its lvolstore.
+ *
+ * \param lvol Handle to lvol.
+ * \param cb_fn Completion callback.
+ * \param cb_arg Completion callback custom arguments.
+ */
+void spdk_lvol_destroy(struct spdk_lvol *lvol, spdk_lvol_op_complete cb_fn, void *cb_arg);
+
+/**
+ * Close lvol, but information is kept on lvolstore.
+ *
+ * \param lvol Handle to lvol.
+ * \param cb_fn Completion callback.
+ * \param cb_arg Completion callback custom arguments.
+ */
+void spdk_lvol_close(struct spdk_lvol *lvol, spdk_lvol_op_complete cb_fn, void *cb_arg);
+
+/**
+ * Get I/O channel of bdev associated with specified lvol.
+ *
+ * \param lvol Handle to lvol.
+ *
+ * \return a pointer to the I/O channel.
+ */
+struct spdk_io_channel *spdk_lvol_get_io_channel(struct spdk_lvol *lvol);
+
+/**
+ * Load lvolstore from the given blobstore device.
+ *
+ * \param bs_dev Pointer to the blobstore device.
+ * \param cb_fn Completion callback.
+ * \param cb_arg Completion callback custom arguments.
+ */
+void spdk_lvs_load(struct spdk_bs_dev *bs_dev, spdk_lvs_op_with_handle_complete cb_fn,
+ void *cb_arg);
+
+/**
+ * Open a lvol.
+ *
+ * \param lvol Handle to lvol.
+ * \param cb_fn Completion callback.
+ * \param cb_arg Completion callback custom arguments.
+ */
+void spdk_lvol_open(struct spdk_lvol *lvol, spdk_lvol_op_with_handle_complete cb_fn, void *cb_arg);
+
+/**
+ * Inflate lvol
+ *
+ * \param lvol Handle to lvol
+ * \param cb_fn Completion callback
+ * \param cb_arg Completion callback custom arguments
+ */
+void spdk_lvol_inflate(struct spdk_lvol *lvol, spdk_lvol_op_complete cb_fn, void *cb_arg);
+
+/**
+ * Decouple parent of lvol
+ *
+ * \param lvol Handle to lvol
+ * \param cb_fn Completion callback
+ * \param cb_arg Completion callback custom arguments
+ */
+void spdk_lvol_decouple_parent(struct spdk_lvol *lvol, spdk_lvol_op_complete cb_fn, void *cb_arg);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* SPDK_LVOL_H */