ceph/src/dpdk/examples/vhost/main.h

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2010-2016 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 <sys/queue.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 struct device_statistics {
  45         uint64_t        tx;
  46         uint64_t        tx_total;
  47         rte_atomic64_t  rx_atomic;
  48         rte_atomic64_t  rx_total_atomic;
  49 };
  50
  51 struct vhost_dev {
  52         /**< Number of memory regions for gpa to hpa translation. */
  53         uint32_t nregions_hpa;
  54         /**< Device MAC address (Obtained on first TX packet). */
  55         struct ether_addr mac_address;
  56         /**< RX VMDQ queue number. */
  57         uint16_t vmdq_rx_q;
  58         /**< Vlan tag assigned to the pool */
  59         uint32_t vlan_tag;
  60         /**< Data core that the device is added to. */
  61         uint16_t coreid;
  62         /**< A device is set as ready if the MAC address has been set. */
  63         volatile uint8_t ready;
  64         /**< Device is marked for removal from the data core. */
  65         volatile uint8_t remove;
  66
  67         int vid;
  68         struct device_statistics stats;
  69         TAILQ_ENTRY(vhost_dev) global_vdev_entry;
  70         TAILQ_ENTRY(vhost_dev) lcore_vdev_entry;
  71 } __rte_cache_aligned;
  72
  73 TAILQ_HEAD(vhost_dev_tailq_list, vhost_dev);
  74
  75
  76 #define REQUEST_DEV_REMOVAL     1
  77 #define ACK_DEV_REMOVAL         0
  78
  79 /*
  80  * Structure containing data core specific information.
  81  */
  82 struct lcore_info {
  83         uint32_t                device_num;
  84
  85         /* Flag to synchronize device removal. */
  86         volatile uint8_t        dev_removal_flag;
  87
  88         struct vhost_dev_tailq_list vdev_list;
  89 };
  90
  91 #endif /* _MAIN_H_ */