1 #ifndef _UAPI_LINUX_VIRTIO_NET_H
2 #define _UAPI_LINUX_VIRTIO_NET_H
3 /* This header is BSD licensed so anyone can use the definitions to implement
4 * compatible drivers/servers.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. Neither the name of IBM nor the names of its contributors
15 * may be used to endorse or promote products derived from this software
16 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE. */
28 #include <linux/types.h>
29 #include <linux/virtio_ids.h>
30 #include <linux/virtio_config.h>
31 #include <linux/virtio_types.h>
32 #include <linux/if_ether.h>
33
34 /* The feature bitmap for virtio net */
35 #define VIRTIO_NET_F_CSUM 0 /* Host handles pkts w/ partial csum */
36 #define VIRTIO_NET_F_GUEST_CSUM 1 /* Guest handles pkts w/ partial csum */
37 #define VIRTIO_NET_F_CTRL_GUEST_OFFLOADS 2 /* Dynamic offload configuration. */
38 #define VIRTIO_NET_F_MTU 3 /* Initial MTU advice */
39 #define VIRTIO_NET_F_MAC 5 /* Host has given MAC address. */
40 #define VIRTIO_NET_F_GUEST_TSO4 7 /* Guest can handle TSOv4 in. */
41 #define VIRTIO_NET_F_GUEST_TSO6 8 /* Guest can handle TSOv6 in. */
42 #define VIRTIO_NET_F_GUEST_ECN 9 /* Guest can handle TSO[6] w/ ECN in. */
43 #define VIRTIO_NET_F_GUEST_UFO 10 /* Guest can handle UFO in. */
44 #define VIRTIO_NET_F_HOST_TSO4 11 /* Host can handle TSOv4 in. */
45 #define VIRTIO_NET_F_HOST_TSO6 12 /* Host can handle TSOv6 in. */
46 #define VIRTIO_NET_F_HOST_ECN 13 /* Host can handle TSO[6] w/ ECN in. */
47 #define VIRTIO_NET_F_HOST_UFO 14 /* Host can handle UFO in. */
48 #define VIRTIO_NET_F_MRG_RXBUF 15 /* Host can merge receive buffers. */
49 #define VIRTIO_NET_F_STATUS 16 /* virtio_net_config.status available */
50 #define VIRTIO_NET_F_CTRL_VQ 17 /* Control channel available */
51 #define VIRTIO_NET_F_CTRL_RX 18 /* Control channel RX mode support */
52 #define VIRTIO_NET_F_CTRL_VLAN 19 /* Control channel VLAN filtering */
53 #define VIRTIO_NET_F_CTRL_RX_EXTRA 20 /* Extra RX mode control support */
54 #define VIRTIO_NET_F_GUEST_ANNOUNCE 21 /* Guest can announce device on the
55 * network */
56 #define VIRTIO_NET_F_MQ 22 /* Device supports Receive Flow
57 * Steering */
58 #define VIRTIO_NET_F_CTRL_MAC_ADDR 23 /* Set MAC address */
59 #define VIRTIO_NET_F_DEVICE_STATS 50 /* Device can provide device-level statistics. */
60 #define VIRTIO_NET_F_VQ_NOTF_COAL 52 /* Device supports virtqueue notification coalescing */
61 #define VIRTIO_NET_F_NOTF_COAL 53 /* Device supports notifications coalescing */
62 #define VIRTIO_NET_F_GUEST_USO4 54 /* Guest can handle USOv4 in. */
63 #define VIRTIO_NET_F_GUEST_USO6 55 /* Guest can handle USOv6 in. */
64 #define VIRTIO_NET_F_HOST_USO 56 /* Host can handle USO in. */
65 #define VIRTIO_NET_F_HASH_REPORT 57 /* Supports hash report */
66 #define VIRTIO_NET_F_GUEST_HDRLEN 59 /* Guest provides the exact hdr_len value. */
67 #define VIRTIO_NET_F_RSS 60 /* Supports RSS RX steering */
68 #define VIRTIO_NET_F_RSC_EXT 61 /* extended coalescing info */
69 #define VIRTIO_NET_F_STANDBY 62 /* Act as standby for another device
70 * with the same MAC.
71 */
72 #define VIRTIO_NET_F_SPEED_DUPLEX 63 /* Device set linkspeed and duplex */
73
74 #ifndef VIRTIO_NET_NO_LEGACY
75 #define VIRTIO_NET_F_GSO 6 /* Host handles pkts w/ any GSO type */
76 #endif /* VIRTIO_NET_NO_LEGACY */
77
78 #define VIRTIO_NET_S_LINK_UP 1 /* Link is up */
79 #define VIRTIO_NET_S_ANNOUNCE 2 /* Announcement is needed */
80
81 /* supported/enabled hash types */
82 #define VIRTIO_NET_RSS_HASH_TYPE_IPv4 (1 << 0)
83 #define VIRTIO_NET_RSS_HASH_TYPE_TCPv4 (1 << 1)
84 #define VIRTIO_NET_RSS_HASH_TYPE_UDPv4 (1 << 2)
85 #define VIRTIO_NET_RSS_HASH_TYPE_IPv6 (1 << 3)
86 #define VIRTIO_NET_RSS_HASH_TYPE_TCPv6 (1 << 4)
87 #define VIRTIO_NET_RSS_HASH_TYPE_UDPv6 (1 << 5)
88 #define VIRTIO_NET_RSS_HASH_TYPE_IP_EX (1 << 6)
89 #define VIRTIO_NET_RSS_HASH_TYPE_TCP_EX (1 << 7)
90 #define VIRTIO_NET_RSS_HASH_TYPE_UDP_EX (1 << 8)
91
92 struct virtio_net_config {
93 /* The config defining mac address (if VIRTIO_NET_F_MAC) */
94 __u8 mac[ETH_ALEN];
95 /* See VIRTIO_NET_F_STATUS and VIRTIO_NET_S_* above */
96 __virtio16 status;
97 /* Maximum number of each of transmit and receive queues;
98 * see VIRTIO_NET_F_MQ and VIRTIO_NET_CTRL_MQ.
99 * Legal values are between 1 and 0x8000
100 */
101 __virtio16 max_virtqueue_pairs;
102 /* Default maximum transmit unit advice */
103 __virtio16 mtu;
104 /*
105 * speed, in units of 1Mb. All values 0 to INT_MAX are legal.
106 * Any other value stands for unknown.
107 */
108 __le32 speed;
109 /*
110 * 0x00 - half duplex
111 * 0x01 - full duplex
112 * Any other value stands for unknown.
113 */
114 __u8 duplex;
115 /* maximum size of RSS key */
116 __u8 rss_max_key_size;
117 /* maximum number of indirection table entries */
118 __le16 rss_max_indirection_table_length;
119 /* bitmask of supported VIRTIO_NET_RSS_HASH_ types */
120 __le32 supported_hash_types;
121 } __attribute__((packed));
122
123 /*
124 * This header comes first in the scatter-gather list. If you don't
125 * specify GSO or CSUM features, you can simply ignore the header.
126 *
127 * This is bitwise-equivalent to the legacy struct virtio_net_hdr_mrg_rxbuf,
128 * only flattened.
129 */
130 struct virtio_net_hdr_v1 {
131 #define VIRTIO_NET_HDR_F_NEEDS_CSUM 1 /* Use csum_start, csum_offset */
132 #define VIRTIO_NET_HDR_F_DATA_VALID 2 /* Csum is valid */
133 #define VIRTIO_NET_HDR_F_RSC_INFO 4 /* rsc info in csum_ fields */
134 __u8 flags;
135 #define VIRTIO_NET_HDR_GSO_NONE 0 /* Not a GSO frame */
136 #define VIRTIO_NET_HDR_GSO_TCPV4 1 /* GSO frame, IPv4 TCP (TSO) */
137 #define VIRTIO_NET_HDR_GSO_UDP 3 /* GSO frame, IPv4 UDP (UFO) */
138 #define VIRTIO_NET_HDR_GSO_TCPV6 4 /* GSO frame, IPv6 TCP */
139 #define VIRTIO_NET_HDR_GSO_UDP_L4 5 /* GSO frame, IPv4& IPv6 UDP (USO) */
140 #define VIRTIO_NET_HDR_GSO_ECN 0x80 /* TCP has ECN set */
141 __u8 gso_type;
142 __virtio16 hdr_len; /* Ethernet + IP + tcp/udp hdrs */
143 __virtio16 gso_size; /* Bytes to append to hdr_len per frame */
144 union {
145 struct {
146 __virtio16 csum_start;
147 __virtio16 csum_offset;
148 };
149 /* Checksum calculation */
150 struct {
151 /* Position to start checksumming from */
152 __virtio16 start;
153 /* Offset after that to place checksum */
154 __virtio16 offset;
155 } csum;
156 /* Receive Segment Coalescing */
157 struct {
158 /* Number of coalesced segments */
159 __le16 segments;
160 /* Number of duplicated acks */
161 __le16 dup_acks;
162 } rsc;
163 };
164 __virtio16 num_buffers; /* Number of merged rx buffers */
165 };
166
167 struct virtio_net_hdr_v1_hash {
168 struct virtio_net_hdr_v1 hdr;
169 __le32 hash_value;
170 #define VIRTIO_NET_HASH_REPORT_NONE 0
171 #define VIRTIO_NET_HASH_REPORT_IPv4 1
172 #define VIRTIO_NET_HASH_REPORT_TCPv4 2
173 #define VIRTIO_NET_HASH_REPORT_UDPv4 3
174 #define VIRTIO_NET_HASH_REPORT_IPv6 4
175 #define VIRTIO_NET_HASH_REPORT_TCPv6 5
176 #define VIRTIO_NET_HASH_REPORT_UDPv6 6
177 #define VIRTIO_NET_HASH_REPORT_IPv6_EX 7
178 #define VIRTIO_NET_HASH_REPORT_TCPv6_EX 8
179 #define VIRTIO_NET_HASH_REPORT_UDPv6_EX 9
180 __le16 hash_report;
181 __le16 padding;
182 };
183
184 #ifndef VIRTIO_NET_NO_LEGACY
185 /* This header comes first in the scatter-gather list.
186 * For legacy virtio, if VIRTIO_F_ANY_LAYOUT is not negotiated, it must
187 * be the first element of the scatter-gather list. If you don't
188 * specify GSO or CSUM features, you can simply ignore the header. */
189 struct virtio_net_hdr {
190 /* See VIRTIO_NET_HDR_F_* */
191 __u8 flags;
192 /* See VIRTIO_NET_HDR_GSO_* */
193 __u8 gso_type;
194 __virtio16 hdr_len; /* Ethernet + IP + tcp/udp hdrs */
195 __virtio16 gso_size; /* Bytes to append to hdr_len per frame */
196 __virtio16 csum_start; /* Position to start checksumming from */
197 __virtio16 csum_offset; /* Offset after that to place checksum */
198 };
199
200 /* This is the version of the header to use when the MRG_RXBUF
201 * feature has been negotiated. */
202 struct virtio_net_hdr_mrg_rxbuf {
203 struct virtio_net_hdr hdr;
204 __virtio16 num_buffers; /* Number of merged rx buffers */
205 };
206 #endif /* ...VIRTIO_NET_NO_LEGACY */
207
208 /*
209 * Control virtqueue data structures
210 *
211 * The control virtqueue expects a header in the first sg entry
212 * and an ack/status response in the last entry. Data for the
213 * command goes in between.
214 */
215 struct virtio_net_ctrl_hdr {
216 __u8 class;
217 __u8 cmd;
218 } __attribute__((packed));
219
220 typedef __u8 virtio_net_ctrl_ack;
221
222 #define VIRTIO_NET_OK 0
223 #define VIRTIO_NET_ERR 1
224
225 /*
226 * Control the RX mode, ie. promisucous, allmulti, etc...
227 * All commands require an "out" sg entry containing a 1 byte
228 * state value, zero = disable, non-zero = enable. Commands
229 * 0 and 1 are supported with the VIRTIO_NET_F_CTRL_RX feature.
230 * Commands 2-5 are added with VIRTIO_NET_F_CTRL_RX_EXTRA.
231 */
232 #define VIRTIO_NET_CTRL_RX 0
233 #define VIRTIO_NET_CTRL_RX_PROMISC 0
234 #define VIRTIO_NET_CTRL_RX_ALLMULTI 1
235 #define VIRTIO_NET_CTRL_RX_ALLUNI 2
236 #define VIRTIO_NET_CTRL_RX_NOMULTI 3
237 #define VIRTIO_NET_CTRL_RX_NOUNI 4
238 #define VIRTIO_NET_CTRL_RX_NOBCAST 5
239
240 /*
241 * Control the MAC
242 *
243 * The MAC filter table is managed by the hypervisor, the guest should
244 * assume the size is infinite. Filtering should be considered
245 * non-perfect, ie. based on hypervisor resources, the guest may
246 * received packets from sources not specified in the filter list.
247 *
248 * In addition to the class/cmd header, the TABLE_SET command requires
249 * two out scatterlists. Each contains a 4 byte count of entries followed
250 * by a concatenated byte stream of the ETH_ALEN MAC addresses. The
251 * first sg list contains unicast addresses, the second is for multicast.
252 * This functionality is present if the VIRTIO_NET_F_CTRL_RX feature
253 * is available.
254 *
255 * The ADDR_SET command requests one out scatterlist, it contains a
256 * 6 bytes MAC address. This functionality is present if the
257 * VIRTIO_NET_F_CTRL_MAC_ADDR feature is available.
258 */
259 struct virtio_net_ctrl_mac {
260 __virtio32 entries;
261 __u8 macs[][ETH_ALEN];
262 } __attribute__((packed));
263
264 #define VIRTIO_NET_CTRL_MAC 1
265 #define VIRTIO_NET_CTRL_MAC_TABLE_SET 0
266 #define VIRTIO_NET_CTRL_MAC_ADDR_SET 1
267
268 /*
269 * Control VLAN filtering
270 *
271 * The VLAN filter table is controlled via a simple ADD/DEL interface.
272 * VLAN IDs not added may be filterd by the hypervisor. Del is the
273 * opposite of add. Both commands expect an out entry containing a 2
274 * byte VLAN ID. VLAN filterting is available with the
275 * VIRTIO_NET_F_CTRL_VLAN feature bit.
276 */
277 #define VIRTIO_NET_CTRL_VLAN 2
278 #define VIRTIO_NET_CTRL_VLAN_ADD 0
279 #define VIRTIO_NET_CTRL_VLAN_DEL 1
280
281 /*
282 * Control link announce acknowledgement
283 *
284 * The command VIRTIO_NET_CTRL_ANNOUNCE_ACK is used to indicate that
285 * driver has recevied the notification; device would clear the
286 * VIRTIO_NET_S_ANNOUNCE bit in the status field after it receives
287 * this command.
288 */
289 #define VIRTIO_NET_CTRL_ANNOUNCE 3
290 #define VIRTIO_NET_CTRL_ANNOUNCE_ACK 0
291
292 /*
293 * Control Receive Flow Steering
294 */
295 #define VIRTIO_NET_CTRL_MQ 4
296 /*
297 * The command VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET
298 * enables Receive Flow Steering, specifying the number of the transmit and
299 * receive queues that will be used. After the command is consumed and acked by
300 * the device, the device will not steer new packets on receive virtqueues
301 * other than specified nor read from transmit virtqueues other than specified.
302 * Accordingly, driver should not transmit new packets on virtqueues other than
303 * specified.
304 */
305 struct virtio_net_ctrl_mq {
306 __virtio16 virtqueue_pairs;
307 };
308
309 #define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET 0
310 #define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MIN 1
311 #define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MAX 0x8000
312
313 /*
314 * The command VIRTIO_NET_CTRL_MQ_RSS_CONFIG has the same effect as
315 * VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET does and additionally configures
316 * the receive steering to use a hash calculated for incoming packet
317 * to decide on receive virtqueue to place the packet. The command
318 * also provides parameters to calculate a hash and receive virtqueue.
319 */
320 struct virtio_net_rss_config {
321 __le32 hash_types;
322 __le16 indirection_table_mask;
323 __le16 unclassified_queue;
324 __le16 indirection_table[1/* + indirection_table_mask */];
325 __le16 max_tx_vq;
326 __u8 hash_key_length;
327 __u8 hash_key_data[/* hash_key_length */];
328 };
329
330 #define VIRTIO_NET_CTRL_MQ_RSS_CONFIG 1
331
332 /*
333 * The command VIRTIO_NET_CTRL_MQ_HASH_CONFIG requests the device
334 * to include in the virtio header of the packet the value of the
335 * calculated hash and the report type of hash. It also provides
336 * parameters for hash calculation. The command requires feature
337 * VIRTIO_NET_F_HASH_REPORT to be negotiated to extend the
338 * layout of virtio header as defined in virtio_net_hdr_v1_hash.
339 */
340 struct virtio_net_hash_config {
341 __le32 hash_types;
342 /* for compatibility with virtio_net_rss_config */
343 __le16 reserved[4];
344 __u8 hash_key_length;
345 __u8 hash_key_data[/* hash_key_length */];
346 };
347
348 #define VIRTIO_NET_CTRL_MQ_HASH_CONFIG 2
349
350 /*
351 * Control network offloads
352 *
353 * Reconfigures the network offloads that Guest can handle.
354 *
355 * Available with the VIRTIO_NET_F_CTRL_GUEST_OFFLOADS feature bit.
356 *
357 * Command data format matches the feature bit mask exactly.
358 *
359 * See VIRTIO_NET_F_GUEST_* for the list of offloads
360 * that can be enabled/disabled.
361 */
362 #define VIRTIO_NET_CTRL_GUEST_OFFLOADS 5
363 #define VIRTIO_NET_CTRL_GUEST_OFFLOADS_SET 0
364
365 /*
366 * Control notifications coalescing.
367 *
368 * Request the device to change the notifications coalescing parameters.
369 *
370 * Available with the VIRTIO_NET_F_NOTF_COAL feature bit.
371 */
372 #define VIRTIO_NET_CTRL_NOTF_COAL 6
373 /*
374 * Set the tx-usecs/tx-max-packets parameters.
375 */
376 struct virtio_net_ctrl_coal_tx {
377 /* Maximum number of packets to send before a TX notification */
378 __le32 tx_max_packets;
379 /* Maximum number of usecs to delay a TX notification */
380 __le32 tx_usecs;
381 };
382
383 #define VIRTIO_NET_CTRL_NOTF_COAL_TX_SET 0
384
385 /*
386 * Set the rx-usecs/rx-max-packets parameters.
387 */
388 struct virtio_net_ctrl_coal_rx {
389 /* Maximum number of packets to receive before a RX notification */
390 __le32 rx_max_packets;
391 /* Maximum number of usecs to delay a RX notification */
392 __le32 rx_usecs;
393 };
394
395 #define VIRTIO_NET_CTRL_NOTF_COAL_RX_SET 1
396 #define VIRTIO_NET_CTRL_NOTF_COAL_VQ_SET 2
397 #define VIRTIO_NET_CTRL_NOTF_COAL_VQ_GET 3
398
399 struct virtio_net_ctrl_coal {
400 __le32 max_packets;
401 __le32 max_usecs;
402 };
403
404 struct virtio_net_ctrl_coal_vq {
405 __le16 vqn;
406 __le16 reserved;
407 struct virtio_net_ctrl_coal coal;
408 };
409
410 /*
411 * Device Statistics
412 */
413 #define VIRTIO_NET_CTRL_STATS 8
414 #define VIRTIO_NET_CTRL_STATS_QUERY 0
415 #define VIRTIO_NET_CTRL_STATS_GET 1
416
417 struct virtio_net_stats_capabilities {
418
419 #define VIRTIO_NET_STATS_TYPE_CVQ (1ULL << 32)
420
421 #define VIRTIO_NET_STATS_TYPE_RX_BASIC (1ULL << 0)
422 #define VIRTIO_NET_STATS_TYPE_RX_CSUM (1ULL << 1)
423 #define VIRTIO_NET_STATS_TYPE_RX_GSO (1ULL << 2)
424 #define VIRTIO_NET_STATS_TYPE_RX_SPEED (1ULL << 3)
425
426 #define VIRTIO_NET_STATS_TYPE_TX_BASIC (1ULL << 16)
427 #define VIRTIO_NET_STATS_TYPE_TX_CSUM (1ULL << 17)
428 #define VIRTIO_NET_STATS_TYPE_TX_GSO (1ULL << 18)
429 #define VIRTIO_NET_STATS_TYPE_TX_SPEED (1ULL << 19)
430
431 __le64 supported_stats_types[1];
432 };
433
434 struct virtio_net_ctrl_queue_stats {
435 struct {
436 __le16 vq_index;
437 __le16 reserved[3];
438 __le64 types_bitmap[1];
439 } stats[1];
440 };
441
442 struct virtio_net_stats_reply_hdr {
443 #define VIRTIO_NET_STATS_TYPE_REPLY_CVQ 32
444
445 #define VIRTIO_NET_STATS_TYPE_REPLY_RX_BASIC 0
446 #define VIRTIO_NET_STATS_TYPE_REPLY_RX_CSUM 1
447 #define VIRTIO_NET_STATS_TYPE_REPLY_RX_GSO 2
448 #define VIRTIO_NET_STATS_TYPE_REPLY_RX_SPEED 3
449
450 #define VIRTIO_NET_STATS_TYPE_REPLY_TX_BASIC 16
451 #define VIRTIO_NET_STATS_TYPE_REPLY_TX_CSUM 17
452 #define VIRTIO_NET_STATS_TYPE_REPLY_TX_GSO 18
453 #define VIRTIO_NET_STATS_TYPE_REPLY_TX_SPEED 19
454 __u8 type;
455 __u8 reserved;
456 __le16 vq_index;
457 __le16 reserved1;
458 __le16 size;
459 };
460
461 struct virtio_net_stats_cvq {
462 struct virtio_net_stats_reply_hdr hdr;
463
464 __le64 command_num;
465 __le64 ok_num;
466 };
467
468 struct virtio_net_stats_rx_basic {
469 struct virtio_net_stats_reply_hdr hdr;
470
471 __le64 rx_notifications;
472
473 __le64 rx_packets;
474 __le64 rx_bytes;
475
476 __le64 rx_interrupts;
477
478 __le64 rx_drops;
479 __le64 rx_drop_overruns;
480 };
481
482 struct virtio_net_stats_tx_basic {
483 struct virtio_net_stats_reply_hdr hdr;
484
485 __le64 tx_notifications;
486
487 __le64 tx_packets;
488 __le64 tx_bytes;
489
490 __le64 tx_interrupts;
491
492 __le64 tx_drops;
493 __le64 tx_drop_malformed;
494 };
495
496 struct virtio_net_stats_rx_csum {
497 struct virtio_net_stats_reply_hdr hdr;
498
499 __le64 rx_csum_valid;
500 __le64 rx_needs_csum;
501 __le64 rx_csum_none;
502 __le64 rx_csum_bad;
503 };
504
505 struct virtio_net_stats_tx_csum {
506 struct virtio_net_stats_reply_hdr hdr;
507
508 __le64 tx_csum_none;
509 __le64 tx_needs_csum;
510 };
511
512 struct virtio_net_stats_rx_gso {
513 struct virtio_net_stats_reply_hdr hdr;
514
515 __le64 rx_gso_packets;
516 __le64 rx_gso_bytes;
517 __le64 rx_gso_packets_coalesced;
518 __le64 rx_gso_bytes_coalesced;
519 };
520
521 struct virtio_net_stats_tx_gso {
522 struct virtio_net_stats_reply_hdr hdr;
523
524 __le64 tx_gso_packets;
525 __le64 tx_gso_bytes;
526 __le64 tx_gso_segments;
527 __le64 tx_gso_segments_bytes;
528 __le64 tx_gso_packets_noseg;
529 __le64 tx_gso_bytes_noseg;
530 };
531
532 struct virtio_net_stats_rx_speed {
533 struct virtio_net_stats_reply_hdr hdr;
534
535 /* rx_{packets,bytes}_allowance_exceeded are too long. So rename to
536 * short name.
537 */
538 __le64 rx_ratelimit_packets;
539 __le64 rx_ratelimit_bytes;
540 };
541
542 struct virtio_net_stats_tx_speed {
543 struct virtio_net_stats_reply_hdr hdr;
544
545 /* tx_{packets,bytes}_allowance_exceeded are too long. So rename to
546 * short name.
547 */
548 __le64 tx_ratelimit_packets;
549 __le64 tx_ratelimit_bytes;
550 };
551
552 #endif /* _UAPI_LINUX_VIRTIO_NET_H */
553
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