[dpdk-dev] [PATCH RFC 02/10] examples/tep_termination:define VXLAN device information and APIs

[Jijiang Liu <jijiang.liu@intel.com>]

Some basic VXLAN definations and APIs are added in this file, which include VXLAN device structure and the APIs for encapsulation and decapsulation.

Signed-off-by: Jijiang Liu <jijiang.liu@intel.com>
Signed-off-by: Thomas Long <thomas.long@intel.com>

---
 examples/tep_termination/main.c  |    1 +
 examples/tep_termination/vxlan.h |   81 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 82 insertions(+), 0 deletions(-)
 create mode 100644 examples/tep_termination/vxlan.h

diff --git a/examples/tep_termination/main.c b/examples/tep_termination/main.c
index 2e36ad0..e58726f 100644
--- a/examples/tep_termination/main.c
+++ b/examples/tep_termination/main.c
@@ -52,6 +52,7 @@
 #include <rte_virtio_net.h>
 
 #include "main.h"
+#include "vxlan.h"
 
 /* the maximum number of external ports supported */
 #define MAX_SUP_PORTS 1
diff --git a/examples/tep_termination/vxlan.h b/examples/tep_termination/vxlan.h
new file mode 100644
index 0000000..96c68fb
--- /dev/null
+++ b/examples/tep_termination/vxlan.h
@@ -0,0 +1,81 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
+ *   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 _VXLAN_H_
+#define _VXLAN_H_
+
+#define PORT_MIN 	49152
+#define PORT_MAX 	65535
+#define PORT_RANGE (PORT_MAX - PORT_MIN) + 1
+
+#define VXLAN_N_PORTS  2
+#define VXLAN_FLAGS 0x00000008
+#define OUTER_VLAN_ID  100
+
+struct vxlan_port
+{
+	uint32_t portid;            /* VirtIO port id */
+	uint32_t peerip;            /* remote VTEP IP address */
+	struct ether_addr peermac;  /* remote VTEP MAC address */
+	struct ether_addr portmac;  /* VM MAC address */
+};
+
+struct vxlan_conf
+{
+	uint16_t vxport;        /* VXLAN UDP destination port */
+	uint32_t portip;        /* DPDK port IP address*/
+	uint32_t in_key;        /* VLAN  ID */
+	uint32_t out_key;       /* VXLAN VNI */
+	uint32_t portid;        /* DPDK port id */
+	struct vxlan_port port[VXLAN_N_PORTS]; /* VXLAN configuration */
+} __rte_cache_aligned;
+
+/* structure that caches offload info for the current packet */
+struct offload_info
+{
+	uint16_t ethertype; 
+	uint8_t l2_len;
+	uint16_t l3_len;
+	uint8_t l4_len;
+	uint8_t l4_proto;
+	uint16_t outer_ethertype;
+	uint8_t outer_l2_len;
+	uint16_t outer_l3_len;
+	uint8_t outer_l4_len;
+	uint8_t outer_l4_proto;
+}__rte_cache_aligned;
+
+int decapsulation(struct rte_mbuf *pkt);
+int encapsulation(struct rte_mbuf *m, uint8_t portid);
+
+#endif /* _MAIN_H_ */
-- 
1.7.7.6