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-rw-r--r--qemu/include/hw/virtio/virtio-net.h103
1 files changed, 103 insertions, 0 deletions
diff --git a/qemu/include/hw/virtio/virtio-net.h b/qemu/include/hw/virtio/virtio-net.h
new file mode 100644
index 000000000..60b11d5c2
--- /dev/null
+++ b/qemu/include/hw/virtio/virtio-net.h
@@ -0,0 +1,103 @@
+/*
+ * Virtio Network Device
+ *
+ * Copyright IBM, Corp. 2007
+ *
+ * Authors:
+ * Anthony Liguori <aliguori@us.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2. See
+ * the COPYING file in the top-level directory.
+ *
+ */
+
+#ifndef _QEMU_VIRTIO_NET_H
+#define _QEMU_VIRTIO_NET_H
+
+#include "standard-headers/linux/virtio_net.h"
+#include "hw/virtio/virtio.h"
+
+#define TYPE_VIRTIO_NET "virtio-net-device"
+#define VIRTIO_NET(obj) \
+ OBJECT_CHECK(VirtIONet, (obj), TYPE_VIRTIO_NET)
+
+#define TX_TIMER_INTERVAL 150000 /* 150 us */
+
+/* Limit the number of packets that can be sent via a single flush
+ * of the TX queue. This gives us a guaranteed exit condition and
+ * ensures fairness in the io path. 256 conveniently matches the
+ * length of the TX queue and shows a good balance of performance
+ * and latency. */
+#define TX_BURST 256
+
+typedef struct virtio_net_conf
+{
+ uint32_t txtimer;
+ int32_t txburst;
+ char *tx;
+} virtio_net_conf;
+
+/* Maximum packet size we can receive from tap device: header + 64k */
+#define VIRTIO_NET_MAX_BUFSIZE (sizeof(struct virtio_net_hdr) + (64 << 10))
+
+typedef struct VirtIONetQueue {
+ VirtQueue *rx_vq;
+ VirtQueue *tx_vq;
+ QEMUTimer *tx_timer;
+ QEMUBH *tx_bh;
+ int tx_waiting;
+ struct {
+ VirtQueueElement elem;
+ ssize_t len;
+ } async_tx;
+ struct VirtIONet *n;
+} VirtIONetQueue;
+
+typedef struct VirtIONet {
+ VirtIODevice parent_obj;
+ uint8_t mac[ETH_ALEN];
+ uint16_t status;
+ VirtIONetQueue *vqs;
+ VirtQueue *ctrl_vq;
+ NICState *nic;
+ uint32_t tx_timeout;
+ int32_t tx_burst;
+ uint32_t has_vnet_hdr;
+ size_t host_hdr_len;
+ size_t guest_hdr_len;
+ uint32_t host_features;
+ uint8_t has_ufo;
+ int mergeable_rx_bufs;
+ uint8_t promisc;
+ uint8_t allmulti;
+ uint8_t alluni;
+ uint8_t nomulti;
+ uint8_t nouni;
+ uint8_t nobcast;
+ uint8_t vhost_started;
+ struct {
+ uint32_t in_use;
+ uint32_t first_multi;
+ uint8_t multi_overflow;
+ uint8_t uni_overflow;
+ uint8_t *macs;
+ } mac_table;
+ uint32_t *vlans;
+ virtio_net_conf net_conf;
+ NICConf nic_conf;
+ DeviceState *qdev;
+ int multiqueue;
+ uint16_t max_queues;
+ uint16_t curr_queues;
+ size_t config_size;
+ char *netclient_name;
+ char *netclient_type;
+ uint64_t curr_guest_offloads;
+ QEMUTimer *announce_timer;
+ int announce_counter;
+} VirtIONet;
+
+void virtio_net_set_netclient_name(VirtIONet *n, const char *name,
+ const char *type);
+
+#endif