1 files changed, 106 insertions, 0 deletions
diff --git a/src/spdk/module/bdev/compress/vbdev_compress.h b/src/spdk/module/bdev/compress/vbdev_compress.h
new file mode 100644
index 000000000..4dcd78f60
--- /dev/null
+++ b/src/spdk/module/bdev/compress/vbdev_compress.h
@@ -0,0 +1,106 @@
+/*-
+ *   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_COMPRESS_H
+#define SPDK_VBDEV_COMPRESS_H
+
+#include "spdk/stdinc.h"
+
+#include "spdk/bdev.h"
+
+#define LB_SIZE_4K	0x1000UL
+#define LB_SIZE_512B	0x200UL
+
+/**
+ * Get the first compression bdev.
+ *
+ * \return the first compression bdev.
+ */
+struct vbdev_compress *compress_bdev_first(void);
+
+/**
+ * Get the next compression bdev.
+ *
+ * \param prev previous compression bdev.
+ * \return the next compression bdev.
+ */
+struct vbdev_compress *compress_bdev_next(struct vbdev_compress *prev);
+
+/**
+ * Test to see if a compression bdev orphan exists.
+ *
+ * \param name The name of the compression bdev.
+ * \return true if found, false if not.
+ */
+bool compress_has_orphan(const char *name);
+
+/**
+ * Get the name of a compression bdev.
+ *
+ * \param comp_bdev The compression bdev.
+ * \return the name of the compression bdev.
+ */
+const char *compress_get_name(const struct vbdev_compress *comp_bdev);
+
+enum compress_pmd {
+	COMPRESS_PMD_AUTO = 0,
+	COMPRESS_PMD_QAT_ONLY,
+	COMPRESS_PMD_ISAL_ONLY,
+	COMPRESS_PMD_MAX
+};
+
+int compress_set_pmd(enum compress_pmd *opts);
+
+typedef void (*spdk_delete_compress_complete)(void *cb_arg, int bdeverrno);
+
+/**
+ * Create new compression bdev.
+ *
+ * \param bdev_name Bdev on which compression bdev will be created.
+ * \param pm_path Path to persistent memory.
+ * \param lb_size Logical block size for the compressed volume in bytes. Must be 4K or 512.
+ * \return 0 on success, other on failure.
+ */
+int create_compress_bdev(const char *bdev_name, const char *pm_path, uint32_t lb_size);
+
+/**
+ * Delete compress bdev.
+ *
+ * \param bdev_name Bdev on which compression bdev will be deleted.
+ * \param cb_fn Function to call after deletion.
+ * \param cb_arg Argument to pass to cb_fn.
+ */
+void bdev_compress_delete(const char *bdev_name, spdk_delete_compress_complete cb_fn,
+			  void *cb_arg);
+
+#endif /* SPDK_VBDEV_COMPRESS_H */