1 files changed, 84 insertions, 0 deletions
diff --git a/src/spdk/intel-ipsec-mb/alloc.c b/src/spdk/intel-ipsec-mb/alloc.c
new file mode 100644
index 000000000..12f66d9ac
--- /dev/null
+++ b/src/spdk/intel-ipsec-mb/alloc.c
@@ -0,0 +1,84 @@
+/*******************************************************************************
+  Copyright (c) 2018, Intel Corporation
+
+  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.
+*******************************************************************************/
+
+#include <stdint.h>
+#ifdef LINUX
+#include <stdlib.h> /* posix_memalign() and free() */
+#else
+#include <malloc.h> /* _aligned_malloc() and aligned_free() */
+#endif
+#include "intel-ipsec-mb.h"
+#include "cpu_feature.h"
+
+/**
+ * @brief Allocates memory for multi-buffer manager instance
+ *
+ * For binary compatibility between library versions
+ * it is recommended to use this API.
+ *
+ * @param flags multi-buffer manager flags
+ *     IMB_FLAG_SHANI_OFF - disable use (and detection) of SHA extenstions,
+ *                          currently SHANI is only available for SSE
+ *
+ * @return Pointer to allocated memory for MB_MGR structure
+ * @retval NULL on allocation error
+ */
+MB_MGR *alloc_mb_mgr(uint64_t flags)
+{
+        const size_t alignment = 64;
+        const size_t size = sizeof(MB_MGR);
+        MB_MGR *ptr = NULL;
+
+#ifdef LINUX
+        if (posix_memalign((void **)&ptr, alignment, size))
+                return NULL;
+#else
+        ptr = _aligned_malloc(size, alignment);
+#endif
+        if (ptr != NULL) {
+                ptr->flags = flags; /* save the flags for future use in init */
+                ptr->features = cpu_feature_adjust(flags, cpu_feature_detect());
+        }
+        IMB_ASSERT(ptr != NULL);
+        return ptr;
+}
+
+/**
+ * @brief Frees memory allocated previously by alloc_mb_mgr()
+ *
+ * @param ptr a pointer to allocated MB_MGR structure
+ *
+ */
+void free_mb_mgr(MB_MGR *ptr)
+{
+        IMB_ASSERT(ptr != NULL);
+#ifdef LINUX
+        free(ptr);
+#else
+        _aligned_free(ptr);
+#endif
+}