Imported Upstream version 16.04

[deb_dpdk.git] / examples / vhost / main.h

diff --git a/examples/vhost/main.h b/examples/vhost/main.h
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+++ b/examples/vhost/main.h
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+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 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 _MAIN_H_
+#define _MAIN_H_
+
+//#define DEBUG
+
+#ifdef DEBUG
+#define LOG_LEVEL RTE_LOG_DEBUG
+#define LOG_DEBUG(log_type, fmt, args...) do { \
+       RTE_LOG(DEBUG, log_type, fmt, ##args);          \
+} while (0)
+#else
+#define LOG_LEVEL RTE_LOG_INFO
+#define LOG_DEBUG(log_type, fmt, args...) do{} while(0)
+#endif
+
+/* Macros for printing using RTE_LOG */
+#define RTE_LOGTYPE_VHOST_CONFIG RTE_LOGTYPE_USER1
+#define RTE_LOGTYPE_VHOST_DATA   RTE_LOGTYPE_USER2
+#define RTE_LOGTYPE_VHOST_PORT   RTE_LOGTYPE_USER3
+
+/**
+ * Information relating to memory regions including offsets to
+ * addresses in host physical space.
+ */
+struct virtio_memory_regions_hpa {
+       /**< Base guest physical address of region. */
+       uint64_t    guest_phys_address;
+       /**< End guest physical address of region. */
+       uint64_t    guest_phys_address_end;
+       /**< Size of region. */
+       uint64_t    memory_size;
+       /**< Offset of region for gpa to hpa translation. */
+       uint64_t    host_phys_addr_offset;
+};
+
+/*
+ * Device linked list structure for data path.
+ */
+struct vhost_dev {
+       /**< Pointer to device created by vhost lib. */
+       struct virtio_net      *dev;
+       /**< Number of memory regions for gpa to hpa translation. */
+       uint32_t nregions_hpa;
+       /**< Memory region information for gpa to hpa translation. */
+       struct virtio_memory_regions_hpa *regions_hpa;
+       /**< Device MAC address (Obtained on first TX packet). */
+       struct ether_addr mac_address;
+       /**< RX VMDQ queue number. */
+       uint16_t vmdq_rx_q;
+       /**< Vlan tag assigned to the pool */
+       uint32_t vlan_tag;
+       /**< Data core that the device is added to. */
+       uint16_t coreid;
+       /**< A device is set as ready if the MAC address has been set. */
+       volatile uint8_t ready;
+       /**< Device is marked for removal from the data core. */
+       volatile uint8_t remove;
+} __rte_cache_aligned;
+
+struct virtio_net_data_ll
+{
+       struct vhost_dev                *vdev;  /* Pointer to device created by configuration core. */
+       struct virtio_net_data_ll       *next;  /* Pointer to next device in linked list. */
+};
+
+/*
+ * Structure containing data core specific information.
+ */
+struct lcore_ll_info
+{
+       struct virtio_net_data_ll       *ll_root_free;          /* Pointer to head in free linked list. */
+       struct virtio_net_data_ll       *ll_root_used;          /* Pointer to head of used linked list. */
+       uint32_t                                        device_num;                     /* Number of devices on lcore. */
+       volatile uint8_t                        dev_removal_flag;       /* Flag to synchronize device removal. */
+};
+
+struct lcore_info
+{
+       struct lcore_ll_info    *lcore_ll;      /* Pointer to data core specific lcore_ll_info struct */
+};
+
+#endif /* _MAIN_H_ */