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Diffstat (limited to 'examples/vhost_xen/virtio-net.h')
| -rw-r--r-- | examples/vhost_xen/virtio-net.h | 113 |
1 files changed, 0 insertions, 113 deletions
diff --git a/examples/vhost_xen/virtio-net.h b/examples/vhost_xen/virtio-net.h deleted file mode 100644 index ab697260..00000000 --- a/examples/vhost_xen/virtio-net.h +++ /dev/null @@ -1,113 +0,0 @@ -/*- - * 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 _VIRTIO_NET_H_ -#define _VIRTIO_NET_H_ - -#include <stdint.h> - -#define VQ_DESC_NUM 256 -/* Used to indicate that the device is running on a data core */ -#define VIRTIO_DEV_RUNNING 1 - -/* - * Structure contains variables relevant to TX/RX virtqueues. - */ -struct vhost_virtqueue -{ - struct vring_desc *desc; /* Virtqueue descriptor ring. */ - struct vring_avail *avail; /* Virtqueue available ring. */ - struct vring_used *used; /* Virtqueue used ring. */ - uint32_t size; /* Size of descriptor ring. */ - uint32_t vhost_hlen; /* Vhost header length (varies depending on RX merge buffers. */ - volatile uint16_t last_used_idx; /* Last index used on the available ring */ - volatile uint16_t last_used_idx_res; /* Used for multiple devices reserving buffers. */ -} __rte_cache_aligned; - -/* - * Device structure contains all configuration information relating to the device. - */ -struct virtio_net -{ - struct vhost_virtqueue *virtqueue_tx; /* Contains all TX virtqueue information. */ - struct vhost_virtqueue *virtqueue_rx; /* Contains all RX virtqueue information. */ - struct virtio_memory *mem; /* QEMU memory and memory region information. */ - struct ether_addr mac_address; /* Device MAC address (Obtained on first TX packet). */ - uint32_t flags; /* Device flags. Only used to check if device is running on data core. */ - uint32_t vlan_tag; /* Vlan tag for device. Currently set to device_id (0-63). */ - uint32_t vmdq_rx_q; - uint64_t device_fh; /* device identifier. */ - uint16_t coreid; - volatile uint8_t ready; /* A device is set as ready if the MAC address has been set. */ - volatile uint8_t remove; /* Device is marked for removal from the data core. */ - uint32_t virtio_idx; /* Index of virtio device */ - uint32_t dom_id; /* Domain id of xen guest */ -} ___rte_cache_aligned; - -/* - * Device linked list structure for configuration. - */ -struct virtio_net_config_ll -{ - struct virtio_net dev; /* Virtio device. */ - struct virtio_net_config_ll *next; /* Next entry on linked list. */ -}; - -/* - * Information relating to memory regions including offsets to addresses in QEMUs memory file. - */ -struct virtio_memory_regions { - uint64_t guest_phys_address; /* Base guest physical address of region. */ - uint64_t guest_phys_address_end; /* End guest physical address of region. */ - uint64_t memory_size; /* Size of region. */ - uint64_t userspace_address; /* Base userspace address of region. */ - uint64_t address_offset; /* Offset of region for address translation. */ -}; - -/* - * Memory structure includes region and mapping information. - */ -struct virtio_memory { - uint32_t nregions; /* Number of memory regions. */ - struct virtio_memory_regions regions[0]; /* Memory region information. */ -}; - -/* - * Device operations to add/remove device. - */ -struct virtio_net_device_ops { - int (* new_device)(struct virtio_net *); /* Add device. */ - void (* destroy_device) (volatile struct virtio_net *); /* Remove device. */ -}; - -#endif |