Add qemu 2.4.0

[kvmfornfv.git] / qemu / include / hw / virtio / virtio-net.h

diff --git a/qemu/include/hw/virtio/virtio-net.h b/qemu/include/hw/virtio/virtio-net.h
new file mode 100644 (file)
index 0000000..60b11d5
--- /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