dpdk: add buffer.h

Change-Id: I998658ad7860b23425444e218ce2e1ec655b885a
Signed-off-by: Damjan Marion <damarion@cisco.com>

1 files changed, 34 insertions, 0 deletions

diff --git a/src/plugins/dpdk/buffer.h b/src/plugins/dpdk/buffer.h
new file mode 100644
index 00000000000..56bf4fff3e6
--- /dev/null
+++ b/src/plugins/dpdk/buffer.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef include_dpdk_buffer_h
+#define include_dpdk_buffer_h
+
+#define rte_mbuf_from_vlib_buffer(x) (((struct rte_mbuf *)x) - 1)
+#define vlib_buffer_from_rte_mbuf(x) ((vlib_buffer_t *)(x+1))
+
+clib_error_t *dpdk_buffer_pool_create (vlib_main_t * vm, unsigned num_mbufs,
+				       unsigned socket_id);
+
+#endif /* include_dpdk_buffer_h */
+
+/** @endcond */
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */