[dpdk-dev] [PATCH 03/10] examples/tep_termination:add the pluggable structures for VXLAN packet processing

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

We are trying to create a framework for tunneling packet processing, so some common APIs are added here, which includes 
1> tunnel port configuration

2> tunnel setup

3> tunnel destroying

4> tunneling packet processing for Rx side

5> tunneling packet processing for Tx side

6> tunnel parameter processing

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

---
 examples/tep_termination/main.c        |    1 +
 examples/tep_termination/vxlan_setup.h |   78 ++++++++++++++++++++++++++++++++
 2 files changed, 79 insertions(+), 0 deletions(-)
 create mode 100644 examples/tep_termination/vxlan_setup.h

diff --git a/examples/tep_termination/main.c b/examples/tep_termination/main.c
index bbb3bc1..f50715c 100644
--- a/examples/tep_termination/main.c
+++ b/examples/tep_termination/main.c
@@ -53,6 +53,7 @@
 
 #include "main.h"
 #include "vxlan.h"
+#include "vxlan_setup.h"
 
 /* the maximum number of external ports supported */
 #define MAX_SUP_PORTS 1
diff --git a/examples/tep_termination/vxlan_setup.h b/examples/tep_termination/vxlan_setup.h
new file mode 100644
index 0000000..522062e
--- /dev/null
+++ b/examples/tep_termination/vxlan_setup.h
@@ -0,0 +1,78 @@
+/*-
+ *   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_SETUP_H_
+#define VXLAN_SETUP_H_
+
+typedef int (*ol_port_configure_t)(uint8_t port,
+				   struct rte_mempool *mbuf_pool);
+
+typedef int (*ol_tunnel_setup_t)(struct vhost_dev *vdev,
+				 struct rte_mbuf *m);
+
+typedef void (*ol_tunnel_destroy_t)(struct vhost_dev *vdev);
+
+typedef int (*ol_tx_handle_t)(uint8_t port_id, uint16_t queue_id,
+			      struct rte_mbuf **tx_pkts, uint16_t nb_pkts);
+
+typedef int (*ol_rx_handle_t)(struct virtio_net *dev, struct rte_mbuf **pkts,
+			      uint32_t count);
+
+typedef int (*ol_param_handle)(struct virtio_net *dev);
+
+struct ol_switch_ops {
+	ol_port_configure_t        port_configure;
+	ol_tunnel_setup_t          tunnel_setup;
+	ol_tunnel_destroy_t        tunnel_destroy;
+	ol_tx_handle_t             tx_handle;
+	ol_rx_handle_t             rx_handle;
+	ol_param_handle            param_handle;
+};
+
+int
+vxlan_port_init(uint8_t port, struct rte_mempool *mbuf_pool);
+
+int
+vxlan_link(struct vhost_dev *vdev, struct rte_mbuf *m);
+
+void
+vxlan_unlink(struct vhost_dev *vdev);
+
+int
+vxlan_tx_pkts(uint8_t port_id, uint16_t queue_id,
+			struct rte_mbuf **tx_pkts, uint16_t nb_pkts);
+int
+vxlan_rx_pkts(struct virtio_net *dev, struct rte_mbuf **pkts, uint32_t count);
+
+#endif /* VXLAN_SETUP_H_ */
+
-- 
1.7.7.6