[dpdk-dev,RFC,02/10] examples/tep_termination:define VXLAN device information and APIs
Commit Message
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
@@ -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
new file mode 100644
@@ -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_ */