Adding upstream version 14.2.21.upstream/14.2.21upstream

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

1 files changed, 95 insertions, 0 deletions

diff --git a/src/spdk/include/spdk_internal/copy_engine.h b/src/spdk/include/spdk_internal/copy_engine.h
new file mode 100644
index 00000000..6b8a13c4
--- /dev/null
+++ b/src/spdk/include/spdk_internal/copy_engine.h
@@ -0,0 +1,95 @@
+/*-
+ *   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_COPY_ENGINE_H
+#define SPDK_INTERNAL_COPY_ENGINE_H
+
+#include "spdk/stdinc.h"
+
+#include "spdk/copy_engine.h"
+#include "spdk/queue.h"
+
+struct spdk_copy_task {
+	spdk_copy_completion_cb	cb;
+	uint8_t			offload_ctx[0];
+};
+
+struct spdk_copy_engine {
+	int	(*copy)(void *cb_arg, struct spdk_io_channel *ch, void *dst, void *src,
+			uint64_t nbytes, spdk_copy_completion_cb cb);
+	int	(*fill)(void *cb_arg, struct spdk_io_channel *ch, void *dst, uint8_t fill,
+			uint64_t nbytes, spdk_copy_completion_cb cb);
+	struct spdk_io_channel *(*get_io_channel)(void);
+};
+
+struct spdk_copy_module_if {
+	/** Initialization function for the module.  Called by the spdk
+	 *   application during startup.
+	 *
+	 *  Modules are required to define this function.
+	 */
+	int	(*module_init)(void);
+
+	/** Finish function for the module.  Called by the spdk application
+	 *   before the spdk application exits to perform any necessary cleanup.
+	 *
+	 *  Modules are not required to define this function.
+	 */
+	void	(*module_fini)(void *ctx);
+
+	/** Function called to return a text string representing the
+	 *   module's configuration options for inclusion in an
+	 *   spdk configuration file.
+	 */
+	void	(*config_text)(FILE *fp);
+
+	size_t	(*get_ctx_size)(void);
+	TAILQ_ENTRY(spdk_copy_module_if)	tailq;
+};
+
+void spdk_copy_engine_register(struct spdk_copy_engine *copy_engine);
+void spdk_copy_module_list_add(struct spdk_copy_module_if *copy_module);
+
+#define SPDK_COPY_MODULE_REGISTER(init_fn, fini_fn, config_fn, ctx_size_fn)				\
+	static struct spdk_copy_module_if init_fn ## _if = {						\
+	.module_init	= init_fn,									\
+	.module_fini	= fini_fn,									\
+	.config_text	= config_fn,									\
+	.get_ctx_size	= ctx_size_fn,									\
+	};												\
+	__attribute__((constructor)) static void init_fn ## _init(void)					\
+	{												\
+		spdk_copy_module_list_add(&init_fn ## _if);						\
+	}
+
+#endif