ceph/src/dpdk/examples/tep_termination/vxlan.h

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
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  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Intel Corporation nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #ifndef _VXLAN_H_
  35 #define _VXLAN_H_
  36
  37 #include <rte_ether.h>
  38 #include <rte_ip.h>
  39
  40 #define PORT_MIN        49152
  41 #define PORT_MAX        65535
  42 #define PORT_RANGE ((PORT_MAX - PORT_MIN) + 1)
  43
  44 #define VXLAN_N_PORTS  2
  45 #define VXLAN_HF_VNI 0x08000000
  46 #define DEFAULT_VXLAN_PORT 4789
  47
  48 extern struct ipv4_hdr app_ip_hdr[VXLAN_N_PORTS];
  49 extern struct ether_hdr app_l2_hdr[VXLAN_N_PORTS];
  50 extern uint8_t tx_checksum;
  51 extern uint16_t tso_segsz;
  52
  53 struct vxlan_port {
  54         uint32_t vport_id;           /**< VirtIO port id */
  55         uint32_t peer_ip;            /**< remote VTEP IP address */
  56         struct ether_addr peer_mac;  /**< remote VTEP MAC address */
  57         struct ether_addr vport_mac; /**< VirtIO port MAC address */
  58 } __rte_cache_aligned;
  59
  60 struct vxlan_conf {
  61         uint16_t dst_port;      /**< VXLAN UDP destination port */
  62         uint32_t port_ip;       /**< DPDK port IP address*/
  63         uint32_t in_key;        /**< VLAN  ID */
  64         uint32_t out_key;       /**< VXLAN VNI */
  65         struct vxlan_port port[VXLAN_N_PORTS]; /**< VXLAN configuration */
  66 } __rte_cache_aligned;
  67
  68 extern struct vxlan_conf vxdev;
  69
  70 /* structure that caches offload info for the current packet */
  71 union tunnel_offload_info {
  72         uint64_t data;
  73         struct {
  74                 uint64_t l2_len:7; /**< L2 (MAC) Header Length. */
  75                 uint64_t l3_len:9; /**< L3 (IP) Header Length. */
  76                 uint64_t l4_len:8; /**< L4 Header Length. */
  77                 uint64_t tso_segsz:16; /**< TCP TSO segment size */
  78                 uint64_t outer_l2_len:7; /**< outer L2 Header Length */
  79                 uint64_t outer_l3_len:16; /**< outer L3 Header Length */
  80         };
  81 } __rte_cache_aligned;
  82
  83 int decapsulation(struct rte_mbuf *pkt);
  84 void encapsulation(struct rte_mbuf *m, uint8_t queue_id);
  85
  86 #endif /* _VXLAN_H_ */