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14#ifndef QEMU_VIRTIO_NET_H
15#define QEMU_VIRTIO_NET_H
16
17#include "qemu/units.h"
18#include "standard-headers/linux/virtio_net.h"
19#include "hw/virtio/virtio.h"
20#include "net/announce.h"
21#include "qemu/option_int.h"
22
23#define TYPE_VIRTIO_NET "virtio-net-device"
24#define VIRTIO_NET(obj) \
25 OBJECT_CHECK(VirtIONet, (obj), TYPE_VIRTIO_NET)
26
27#define TX_TIMER_INTERVAL 150000
28
29
30
31
32
33
34#define TX_BURST 256
35
36typedef struct virtio_net_conf
37{
38 uint32_t txtimer;
39 int32_t txburst;
40 char *tx;
41 uint16_t rx_queue_size;
42 uint16_t tx_queue_size;
43 uint16_t mtu;
44 int32_t speed;
45 char *duplex_str;
46 uint8_t duplex;
47 char *primary_id_str;
48} virtio_net_conf;
49
50
51typedef enum {
52 RSC_COALESCE,
53 RSC_FINAL,
54 RSC_NO_MATCH,
55 RSC_BYPASS,
56 RSC_CANDIDATE
57} CoalesceStatus;
58
59typedef struct VirtioNetRscStat {
60 uint32_t received;
61 uint32_t coalesced;
62 uint32_t over_size;
63 uint32_t cache;
64 uint32_t empty_cache;
65 uint32_t no_match_cache;
66 uint32_t win_update;
67 uint32_t no_match;
68 uint32_t tcp_syn;
69 uint32_t tcp_ctrl_drain;
70 uint32_t dup_ack;
71 uint32_t dup_ack1;
72 uint32_t dup_ack2;
73 uint32_t pure_ack;
74 uint32_t ack_out_of_win;
75 uint32_t data_out_of_win;
76 uint32_t data_out_of_order;
77 uint32_t data_after_pure_ack;
78 uint32_t bypass_not_tcp;
79 uint32_t tcp_option;
80 uint32_t tcp_all_opt;
81 uint32_t ip_frag;
82 uint32_t ip_ecn;
83 uint32_t ip_hacked;
84 uint32_t ip_option;
85 uint32_t purge_failed;
86 uint32_t drain_failed;
87 uint32_t final_failed;
88 int64_t timer;
89} VirtioNetRscStat;
90
91
92typedef struct VirtioNetRscUnit {
93 void *ip;
94 uint16_t *ip_plen;
95 struct tcp_header *tcp;
96 uint16_t tcp_hdrlen;
97 uint16_t payload;
98} VirtioNetRscUnit;
99
100
101typedef struct VirtioNetRscSeg {
102 QTAILQ_ENTRY(VirtioNetRscSeg) next;
103 void *buf;
104 size_t size;
105 uint16_t packets;
106 uint16_t dup_ack;
107 bool is_coalesced;
108 VirtioNetRscUnit unit;
109 NetClientState *nc;
110} VirtioNetRscSeg;
111
112typedef struct VirtIONet VirtIONet;
113
114
115typedef struct VirtioNetRscChain {
116 QTAILQ_ENTRY(VirtioNetRscChain) next;
117 VirtIONet *n;
118 uint16_t proto;
119 uint8_t gso_type;
120 uint16_t max_payload;
121 QEMUTimer *drain_timer;
122 QTAILQ_HEAD(, VirtioNetRscSeg) buffers;
123 VirtioNetRscStat stat;
124} VirtioNetRscChain;
125
126
127#define VIRTIO_NET_MAX_BUFSIZE (sizeof(struct virtio_net_hdr) + (64 * KiB))
128
129typedef struct VirtIONetQueue {
130 VirtQueue *rx_vq;
131 VirtQueue *tx_vq;
132 QEMUTimer *tx_timer;
133 QEMUBH *tx_bh;
134 uint32_t tx_waiting;
135 struct {
136 VirtQueueElement *elem;
137 } async_tx;
138 struct VirtIONet *n;
139} VirtIONetQueue;
140
141struct VirtIONet {
142 VirtIODevice parent_obj;
143 uint8_t mac[ETH_ALEN];
144 uint16_t status;
145 VirtIONetQueue *vqs;
146 VirtQueue *ctrl_vq;
147 NICState *nic;
148
149
150 QTAILQ_HEAD(, VirtioNetRscChain) rsc_chains;
151 uint32_t tx_timeout;
152 int32_t tx_burst;
153 uint32_t has_vnet_hdr;
154 size_t host_hdr_len;
155 size_t guest_hdr_len;
156 uint64_t host_features;
157 uint32_t rsc_timeout;
158 uint8_t rsc4_enabled;
159 uint8_t rsc6_enabled;
160 uint8_t has_ufo;
161 uint32_t mergeable_rx_bufs;
162 uint8_t promisc;
163 uint8_t allmulti;
164 uint8_t alluni;
165 uint8_t nomulti;
166 uint8_t nouni;
167 uint8_t nobcast;
168 uint8_t vhost_started;
169 struct {
170 uint32_t in_use;
171 uint32_t first_multi;
172 uint8_t multi_overflow;
173 uint8_t uni_overflow;
174 uint8_t *macs;
175 } mac_table;
176 uint32_t *vlans;
177 virtio_net_conf net_conf;
178 NICConf nic_conf;
179 DeviceState *qdev;
180 int multiqueue;
181 uint16_t max_queues;
182 uint16_t curr_queues;
183 size_t config_size;
184 char *netclient_name;
185 char *netclient_type;
186 uint64_t curr_guest_offloads;
187
188 uint64_t saved_guest_offloads;
189 AnnounceTimer announce_timer;
190 bool needs_vnet_hdr_swap;
191 bool mtu_bypass_backend;
192 QemuOpts *primary_device_opts;
193 QDict *primary_device_dict;
194 DeviceState *primary_dev;
195 BusState *primary_bus;
196 char *primary_device_id;
197 char *standby_id;
198 bool primary_should_be_hidden;
199 bool failover;
200 DeviceListener primary_listener;
201 Notifier migration_state;
202};
203
204void virtio_net_set_netclient_name(VirtIONet *n, const char *name,
205 const char *type);
206
207#endif
208