ceph/src/dpdk/examples/tep_termination/main.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
   9  *   are met:
  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
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #ifndef _MAIN_H_
  35 #define _MAIN_H_
  36
  37 #include <rte_ether.h>
  38
  39 /* Macros for printing using RTE_LOG */
  40 #define RTE_LOGTYPE_VHOST_CONFIG RTE_LOGTYPE_USER1
  41 #define RTE_LOGTYPE_VHOST_DATA   RTE_LOGTYPE_USER2
  42 #define RTE_LOGTYPE_VHOST_PORT   RTE_LOGTYPE_USER3
  43
  44 /* State of virtio device. */
  45 #define DEVICE_MAC_LEARNING     0
  46 #define DEVICE_RX               1
  47 #define DEVICE_SAFE_REMOVE      2
  48
  49 #define MAX_QUEUES 512
  50
  51 /* Max burst size for RX/TX */
  52 #define MAX_PKT_BURST 32
  53
  54 /* Max number of devices. Limited by the application. */
  55 #define MAX_DEVICES 64
  56
  57 /* Per-device statistics struct */
  58 struct device_statistics {
  59         uint64_t tx_total;
  60         rte_atomic64_t rx_total_atomic;
  61         uint64_t rx_total;
  62         uint64_t tx;
  63         rte_atomic64_t rx_atomic;
  64         /**< Bad inner IP csum for tunneling pkt */
  65         rte_atomic64_t rx_bad_ip_csum;
  66         /**< Bad inner L4 csum for tunneling pkt */
  67         rte_atomic64_t rx_bad_l4_csum;
  68 } __rte_cache_aligned;
  69
  70 /**
  71  * Device linked list structure for data path.
  72  */
  73 struct vhost_dev {
  74         int vid;
  75         /**< Number of memory regions for gpa to hpa translation. */
  76         uint32_t nregions_hpa;
  77         /**< Memory region information for gpa to hpa translation. */
  78         struct virtio_memory_regions_hpa *regions_hpa;
  79         /**< Device MAC address (Obtained on first TX packet). */
  80         struct ether_addr mac_address;
  81         /**< RX queue number. */
  82         uint16_t rx_q;
  83         /**< Data core that the device is added to. */
  84         uint16_t coreid;
  85         /**< A device is set as ready if the MAC address has been set. */
  86         volatile uint8_t ready;
  87         /**< Device is marked for removal from the data core. */
  88         volatile uint8_t remove;
  89 } __rte_cache_aligned;
  90
  91 /**
  92  * Structure containing data core specific information.
  93  */
  94 struct lcore_ll_info {
  95         /**< Pointer to head in free linked list. */
  96         struct virtio_net_data_ll *ll_root_free;
  97         /**< Pointer to head of used linked list. */
  98         struct virtio_net_data_ll *ll_root_used;
  99         /**< Number of devices on lcore. */
 100         uint32_t device_num;
 101         /**< Flag to synchronize device removal. */
 102         volatile uint8_t dev_removal_flag;
 103 };
 104
 105 struct lcore_info {
 106         /**< Pointer to data core specific lcore_ll_info struct */
 107         struct lcore_ll_info    *lcore_ll;
 108 };
 109
 110 struct virtio_net_data_ll {
 111         /**< Pointer to device created by configuration core. */
 112         struct vhost_dev            *vdev;
 113         /**< Pointer to next device in linked list. */
 114         struct virtio_net_data_ll   *next;
 115 };
 116
 117 uint32_t
 118 virtio_dev_rx(int vid, struct rte_mbuf **pkts, uint32_t count);
 119
 120 #endif /* _MAIN_H_ */