From 7cd468a3d7dee7d6c92f69a0bb7061ae208ec727 Mon Sep 17 00:00:00 2001
From: Damjan Marion <damarion@cisco.com>
Date: Mon, 19 Dec 2016 23:05:39 +0100
Subject: Reorganize source tree to use single autotools instance

Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23
Signed-off-by: Damjan Marion <damarion@cisco.com>
---
 src/vnet/dpo/mpls_label_dpo.h | 101 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 101 insertions(+)
 create mode 100644 src/vnet/dpo/mpls_label_dpo.h

(limited to 'src/vnet/dpo/mpls_label_dpo.h')

diff --git a/src/vnet/dpo/mpls_label_dpo.h b/src/vnet/dpo/mpls_label_dpo.h
new file mode 100644
index 00000000000..89bcb093b04
--- /dev/null
+++ b/src/vnet/dpo/mpls_label_dpo.h
@@ -0,0 +1,101 @@
+/*
+ * Copyright (c) 2016 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 __MPLS_LABEL_DPO_H__
+#define __MPLS_LABEL_DPO_H__
+
+#include <vnet/vnet.h>
+#include <vnet/mpls/packet.h>
+#include <vnet/dpo/dpo.h>
+
+/**
+ * A representation of an MPLS label for imposition in the data-path
+ */
+typedef struct mpls_label_dpo_t
+{
+    /**
+     * The MPLS label header to impose. Outer most label first.
+     */
+    mpls_unicast_header_t mld_hdr[8];
+
+    /**
+     * Next DPO in the graph
+     */
+    dpo_id_t mld_dpo;
+
+    /**
+     * The protocol of the payload/packets that are being encapped
+     */
+    dpo_proto_t mld_payload_proto;
+
+    /**
+     * Size of the label stack
+     */
+    u16 mld_n_labels;
+
+    /**
+     * Cached amount of header bytes to paint
+     */
+    u16 mld_n_hdr_bytes;
+
+    /**
+     * Number of locks/users of the label
+     */
+    u16 mld_locks;
+} mpls_label_dpo_t;
+
+/**
+ * @brief Assert that the MPLS label object is less than a cache line in size.
+ * Should this get any bigger then we will need to reconsider how many labels
+ * can be pushed in one object.
+ */
+_Static_assert((sizeof(mpls_label_dpo_t) <= CLIB_CACHE_LINE_BYTES),
+	       "MPLS label DPO is larger than one cache line.");
+
+/**
+ * @brief Create an MPLS label object
+ *
+ * @param label_stack The stack if labels to impose, outer most label first
+ * @param eos The inner most label's EOS bit
+ * @param ttl The inner most label's TTL bit
+ * @param exp The inner most label's EXP bit
+ * @param payload_proto The ptocool of the payload packets that will
+ *                      be imposed with this label header.
+ * @param dpo The parent of the created MPLS label object
+ */
+extern index_t mpls_label_dpo_create(mpls_label_t *label_stack,
+                                     mpls_eos_bit_t eos,
+                                     u8 ttl,
+                                     u8 exp,
+                                     dpo_proto_t payload_proto,
+				     const dpo_id_t *dpo);
+
+extern u8* format_mpls_label_dpo(u8 *s, va_list *args);
+
+
+/*
+ * Encapsulation violation for fast data-path access
+ */
+extern mpls_label_dpo_t *mpls_label_dpo_pool;
+
+static inline mpls_label_dpo_t *
+mpls_label_dpo_get (index_t index)
+{
+    return (pool_elt_at_index(mpls_label_dpo_pool, index));
+}
+
+extern void mpls_label_dpo_module_init(void);
+
+#endif
-- 
cgit 1.2.3-korg