Adding upstream version 18.2.2.upstream/18.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 68 insertions, 0 deletions

diff --git a/src/spdk/module/bdev/split/vbdev_split.h b/src/spdk/module/bdev/split/vbdev_split.h
new file mode 100644
index 000000000..f468f2414
--- /dev/null
+++ b/src/spdk/module/bdev/split/vbdev_split.h
@@ -0,0 +1,68 @@
+/*-
+ *   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_VBDEV_SPLIT_H
+#define SPDK_VBDEV_SPLIT_H
+
+#include "spdk/bdev_module.h"
+
+/**
+ * Add given disk name to split config. If bdev with \c base_bdev_name name
+ * exist the split bdevs will be created right away, if not the split bdevs will
+ * be created when base bdev became be available (during examination process).
+ *
+ * \param base_bdev_name Base bdev name
+ * \param split_count number of splits to be created.
+ * \param split_size_mb size of each bdev. If 0 use base bdev size / split_count
+ * \return value >= 0 - number of splits create. Negative errno code on error.
+ */
+int create_vbdev_split(const char *base_bdev_name, unsigned split_count, uint64_t split_size_mb);
+
+/**
+ * Remove all created split bdevs and split config.
+ *
+ * \param base_bdev_name base bdev name
+ * \return 0 on success or negative errno value.
+ */
+int vbdev_split_destruct(const char *base_bdev_name);
+
+/**
+ * Get the spdk_bdev_part_base associated with the given split base_bdev.
+ *
+ * \param base_bdev Bdev to get the part_base from
+ * \return pointer to the associated spdk_bdev_part_base
+ * \return NULL if the base_bdev is not being split by the split module
+ */
+struct spdk_bdev_part_base *vbdev_split_get_part_base(struct spdk_bdev *base_bdev);
+
+#endif /* SPDK_VBDEV_SPLIT_H */