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1#ifndef _LINUX_VIRTIO_NET_H
2#define _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#define VIRTIO_NET_F_GUEST_UDP_TUNNEL_GSO 65 /* Driver can receive
74 * GSO-over-UDP-tunnel packets
75 */
76#define VIRTIO_NET_F_GUEST_UDP_TUNNEL_GSO_CSUM 66 /* Driver handles
77 * GSO-over-UDP-tunnel
78 * packets with partial csum
79 * for the outer header
80 */
81#define VIRTIO_NET_F_HOST_UDP_TUNNEL_GSO 67 /* Device can receive
82 * GSO-over-UDP-tunnel packets
83 */
84#define VIRTIO_NET_F_HOST_UDP_TUNNEL_GSO_CSUM 68 /* Device handles
85 * GSO-over-UDP-tunnel
86 * packets with partial csum
87 * for the outer header
88 */
89
90/* Offloads bits corresponding to VIRTIO_NET_F_HOST_UDP_TUNNEL_GSO{,_CSUM}
91 * features
92 */
93#define VIRTIO_NET_F_GUEST_UDP_TUNNEL_GSO_MAPPED 46
94#define VIRTIO_NET_F_GUEST_UDP_TUNNEL_GSO_CSUM_MAPPED 47
95
96#ifndef VIRTIO_NET_NO_LEGACY
97#define VIRTIO_NET_F_GSO 6 /* Host handles pkts w/ any GSO type */
98#endif /* VIRTIO_NET_NO_LEGACY */
99
100#define VIRTIO_NET_S_LINK_UP 1 /* Link is up */
101#define VIRTIO_NET_S_ANNOUNCE 2 /* Announcement is needed */
102
103/* supported/enabled hash types */
104#define VIRTIO_NET_RSS_HASH_TYPE_IPv4 (1 << 0)
105#define VIRTIO_NET_RSS_HASH_TYPE_TCPv4 (1 << 1)
106#define VIRTIO_NET_RSS_HASH_TYPE_UDPv4 (1 << 2)
107#define VIRTIO_NET_RSS_HASH_TYPE_IPv6 (1 << 3)
108#define VIRTIO_NET_RSS_HASH_TYPE_TCPv6 (1 << 4)
109#define VIRTIO_NET_RSS_HASH_TYPE_UDPv6 (1 << 5)
110#define VIRTIO_NET_RSS_HASH_TYPE_IP_EX (1 << 6)
111#define VIRTIO_NET_RSS_HASH_TYPE_TCP_EX (1 << 7)
112#define VIRTIO_NET_RSS_HASH_TYPE_UDP_EX (1 << 8)
113
114struct virtio_net_config {
115 /* The config defining mac address (if VIRTIO_NET_F_MAC) */
116 __u8 mac[ETH_ALEN];
117 /* See VIRTIO_NET_F_STATUS and VIRTIO_NET_S_* above */
118 __virtio16 status;
119 /* Maximum number of each of transmit and receive queues;
120 * see VIRTIO_NET_F_MQ and VIRTIO_NET_CTRL_MQ.
121 * Legal values are between 1 and 0x8000
122 */
123 __virtio16 max_virtqueue_pairs;
124 /* Default maximum transmit unit advice */
125 __virtio16 mtu;
126 /*
127 * speed, in units of 1Mb. All values 0 to INT_MAX are legal.
128 * Any other value stands for unknown.
129 */
130 __le32 speed;
131 /*
132 * 0x00 - half duplex
133 * 0x01 - full duplex
134 * Any other value stands for unknown.
135 */
136 __u8 duplex;
137 /* maximum size of RSS key */
138 __u8 rss_max_key_size;
139 /* maximum number of indirection table entries */
140 __le16 rss_max_indirection_table_length;
141 /* bitmask of supported VIRTIO_NET_RSS_HASH_ types */
142 __le32 supported_hash_types;
143} __attribute__((packed));
144
145/*
146 * This header comes first in the scatter-gather list. If you don't
147 * specify GSO or CSUM features, you can simply ignore the header.
148 *
149 * This is bitwise-equivalent to the legacy struct virtio_net_hdr_mrg_rxbuf,
150 * only flattened.
151 */
152struct virtio_net_hdr_v1 {
153#define VIRTIO_NET_HDR_F_NEEDS_CSUM 1 /* Use csum_start, csum_offset */
154#define VIRTIO_NET_HDR_F_DATA_VALID 2 /* Csum is valid */
155#define VIRTIO_NET_HDR_F_RSC_INFO 4 /* rsc info in csum_ fields */
156#define VIRTIO_NET_HDR_F_UDP_TUNNEL_CSUM 8 /* UDP tunnel csum offload */
157 __u8 flags;
158#define VIRTIO_NET_HDR_GSO_NONE 0 /* Not a GSO frame */
159#define VIRTIO_NET_HDR_GSO_TCPV4 1 /* GSO frame, IPv4 TCP (TSO) */
160#define VIRTIO_NET_HDR_GSO_UDP 3 /* GSO frame, IPv4 UDP (UFO) */
161#define VIRTIO_NET_HDR_GSO_TCPV6 4 /* GSO frame, IPv6 TCP */
162#define VIRTIO_NET_HDR_GSO_UDP_L4 5 /* GSO frame, IPv4& IPv6 UDP (USO) */
163#define VIRTIO_NET_HDR_GSO_UDP_TUNNEL_IPV4 0x20 /* UDPv4 tunnel present */
164#define VIRTIO_NET_HDR_GSO_UDP_TUNNEL_IPV6 0x40 /* UDPv6 tunnel present */
165#define VIRTIO_NET_HDR_GSO_UDP_TUNNEL (VIRTIO_NET_HDR_GSO_UDP_TUNNEL_IPV4 | \
166 VIRTIO_NET_HDR_GSO_UDP_TUNNEL_IPV6)
167#define VIRTIO_NET_HDR_GSO_ECN 0x80 /* TCP has ECN set */
168 __u8 gso_type;
169 __virtio16 hdr_len; /* Ethernet + IP + tcp/udp hdrs */
170 __virtio16 gso_size; /* Bytes to append to hdr_len per frame */
171 union {
172 struct {
173 __virtio16 csum_start;
174 __virtio16 csum_offset;
175 };
176 /* Checksum calculation */
177 struct {
178 /* Position to start checksumming from */
179 __virtio16 start;
180 /* Offset after that to place checksum */
181 __virtio16 offset;
182 } csum;
183 /* Receive Segment Coalescing */
184 struct {
185 /* Number of coalesced segments */
186 __le16 segments;
187 /* Number of duplicated acks */
188 __le16 dup_acks;
189 } rsc;
190 };
191 __virtio16 num_buffers; /* Number of merged rx buffers */
192};
193
194struct virtio_net_hdr_v1_hash {
195 struct virtio_net_hdr_v1 hdr;
196 __le32 hash_value;
197#define VIRTIO_NET_HASH_REPORT_NONE 0
198#define VIRTIO_NET_HASH_REPORT_IPv4 1
199#define VIRTIO_NET_HASH_REPORT_TCPv4 2
200#define VIRTIO_NET_HASH_REPORT_UDPv4 3
201#define VIRTIO_NET_HASH_REPORT_IPv6 4
202#define VIRTIO_NET_HASH_REPORT_TCPv6 5
203#define VIRTIO_NET_HASH_REPORT_UDPv6 6
204#define VIRTIO_NET_HASH_REPORT_IPv6_EX 7
205#define VIRTIO_NET_HASH_REPORT_TCPv6_EX 8
206#define VIRTIO_NET_HASH_REPORT_UDPv6_EX 9
207 __le16 hash_report;
208 __le16 padding;
209};
210
211struct virtio_net_hdr_v1_hash_tunnel {
212 struct virtio_net_hdr_v1_hash hash_hdr;
213 __le16 outer_th_offset;
214 __le16 inner_nh_offset;
215};
216
217#ifndef VIRTIO_NET_NO_LEGACY
218/* This header comes first in the scatter-gather list.
219 * For legacy virtio, if VIRTIO_F_ANY_LAYOUT is not negotiated, it must
220 * be the first element of the scatter-gather list. If you don't
221 * specify GSO or CSUM features, you can simply ignore the header. */
222struct virtio_net_hdr {
223 /* See VIRTIO_NET_HDR_F_* */
224 __u8 flags;
225 /* See VIRTIO_NET_HDR_GSO_* */
226 __u8 gso_type;
227 __virtio16 hdr_len; /* Ethernet + IP + tcp/udp hdrs */
228 __virtio16 gso_size; /* Bytes to append to hdr_len per frame */
229 __virtio16 csum_start; /* Position to start checksumming from */
230 __virtio16 csum_offset; /* Offset after that to place checksum */
231};
232
233/* This is the version of the header to use when the MRG_RXBUF
234 * feature has been negotiated. */
235struct virtio_net_hdr_mrg_rxbuf {
236 struct virtio_net_hdr hdr;
237 __virtio16 num_buffers; /* Number of merged rx buffers */
238};
239#endif /* ...VIRTIO_NET_NO_LEGACY */
240
241/*
242 * Control virtqueue data structures
243 *
244 * The control virtqueue expects a header in the first sg entry
245 * and an ack/status response in the last entry. Data for the
246 * command goes in between.
247 */
248struct virtio_net_ctrl_hdr {
249 __u8 class;
250 __u8 cmd;
251} __attribute__((packed));
252
253typedef __u8 virtio_net_ctrl_ack;
254
255#define VIRTIO_NET_OK 0
256#define VIRTIO_NET_ERR 1
257
258/*
259 * Control the RX mode, ie. promisucous, allmulti, etc...
260 * All commands require an "out" sg entry containing a 1 byte
261 * state value, zero = disable, non-zero = enable. Commands
262 * 0 and 1 are supported with the VIRTIO_NET_F_CTRL_RX feature.
263 * Commands 2-5 are added with VIRTIO_NET_F_CTRL_RX_EXTRA.
264 */
265#define VIRTIO_NET_CTRL_RX 0
266 #define VIRTIO_NET_CTRL_RX_PROMISC 0
267 #define VIRTIO_NET_CTRL_RX_ALLMULTI 1
268 #define VIRTIO_NET_CTRL_RX_ALLUNI 2
269 #define VIRTIO_NET_CTRL_RX_NOMULTI 3
270 #define VIRTIO_NET_CTRL_RX_NOUNI 4
271 #define VIRTIO_NET_CTRL_RX_NOBCAST 5
272
273/*
274 * Control the MAC
275 *
276 * The MAC filter table is managed by the hypervisor, the guest should
277 * assume the size is infinite. Filtering should be considered
278 * non-perfect, ie. based on hypervisor resources, the guest may
279 * received packets from sources not specified in the filter list.
280 *
281 * In addition to the class/cmd header, the TABLE_SET command requires
282 * two out scatterlists. Each contains a 4 byte count of entries followed
283 * by a concatenated byte stream of the ETH_ALEN MAC addresses. The
284 * first sg list contains unicast addresses, the second is for multicast.
285 * This functionality is present if the VIRTIO_NET_F_CTRL_RX feature
286 * is available.
287 *
288 * The ADDR_SET command requests one out scatterlist, it contains a
289 * 6 bytes MAC address. This functionality is present if the
290 * VIRTIO_NET_F_CTRL_MAC_ADDR feature is available.
291 */
292struct virtio_net_ctrl_mac {
293 __virtio32 entries;
294 __u8 macs[][ETH_ALEN];
295} __attribute__((packed));
296
297#define VIRTIO_NET_CTRL_MAC 1
298 #define VIRTIO_NET_CTRL_MAC_TABLE_SET 0
299 #define VIRTIO_NET_CTRL_MAC_ADDR_SET 1
300
301/*
302 * Control VLAN filtering
303 *
304 * The VLAN filter table is controlled via a simple ADD/DEL interface.
305 * VLAN IDs not added may be filterd by the hypervisor. Del is the
306 * opposite of add. Both commands expect an out entry containing a 2
307 * byte VLAN ID. VLAN filterting is available with the
308 * VIRTIO_NET_F_CTRL_VLAN feature bit.
309 */
310#define VIRTIO_NET_CTRL_VLAN 2
311 #define VIRTIO_NET_CTRL_VLAN_ADD 0
312 #define VIRTIO_NET_CTRL_VLAN_DEL 1
313
314/*
315 * Control link announce acknowledgement
316 *
317 * The command VIRTIO_NET_CTRL_ANNOUNCE_ACK is used to indicate that
318 * driver has recevied the notification; device would clear the
319 * VIRTIO_NET_S_ANNOUNCE bit in the status field after it receives
320 * this command.
321 */
322#define VIRTIO_NET_CTRL_ANNOUNCE 3
323 #define VIRTIO_NET_CTRL_ANNOUNCE_ACK 0
324
325/*
326 * Control Receive Flow Steering
327 */
328#define VIRTIO_NET_CTRL_MQ 4
329/*
330 * The command VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET
331 * enables Receive Flow Steering, specifying the number of the transmit and
332 * receive queues that will be used. After the command is consumed and acked by
333 * the device, the device will not steer new packets on receive virtqueues
334 * other than specified nor read from transmit virtqueues other than specified.
335 * Accordingly, driver should not transmit new packets on virtqueues other than
336 * specified.
337 */
338struct virtio_net_ctrl_mq {
339 __virtio16 virtqueue_pairs;
340};
341
342 #define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET 0
343 #define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MIN 1
344 #define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MAX 0x8000
345
346/*
347 * The command VIRTIO_NET_CTRL_MQ_RSS_CONFIG has the same effect as
348 * VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET does and additionally configures
349 * the receive steering to use a hash calculated for incoming packet
350 * to decide on receive virtqueue to place the packet. The command
351 * also provides parameters to calculate a hash and receive virtqueue.
352 */
353struct virtio_net_rss_config {
354 __le32 hash_types;
355 __le16 indirection_table_mask;
356 __le16 unclassified_queue;
357 __le16 indirection_table[1/* + indirection_table_mask */];
358 __le16 max_tx_vq;
359 __u8 hash_key_length;
360 __u8 hash_key_data[/* hash_key_length */];
361};
362
363struct virtio_net_rss_config_hdr {
364 __le32 hash_types;
365 __le16 indirection_table_mask;
366 __le16 unclassified_queue;
367 __le16 indirection_table[/* 1 + indirection_table_mask */];
368};
369
370struct virtio_net_rss_config_trailer {
371 __le16 max_tx_vq;
372 __u8 hash_key_length;
373 __u8 hash_key_data[/* hash_key_length */];
374};
375
376 #define VIRTIO_NET_CTRL_MQ_RSS_CONFIG 1
377
378/*
379 * The command VIRTIO_NET_CTRL_MQ_HASH_CONFIG requests the device
380 * to include in the virtio header of the packet the value of the
381 * calculated hash and the report type of hash. It also provides
382 * parameters for hash calculation. The command requires feature
383 * VIRTIO_NET_F_HASH_REPORT to be negotiated to extend the
384 * layout of virtio header as defined in virtio_net_hdr_v1_hash.
385 */
386struct virtio_net_hash_config {
387 __le32 hash_types;
388 /* for compatibility with virtio_net_rss_config */
389 __le16 reserved[4];
390 __u8 hash_key_length;
391 __u8 hash_key_data[/* hash_key_length */];
392};
393
394 #define VIRTIO_NET_CTRL_MQ_HASH_CONFIG 2
395
396/*
397 * Control network offloads
398 *
399 * Reconfigures the network offloads that Guest can handle.
400 *
401 * Available with the VIRTIO_NET_F_CTRL_GUEST_OFFLOADS feature bit.
402 *
403 * Command data format matches the feature bit mask exactly.
404 *
405 * See VIRTIO_NET_F_GUEST_* for the list of offloads
406 * that can be enabled/disabled.
407 */
408#define VIRTIO_NET_CTRL_GUEST_OFFLOADS 5
409#define VIRTIO_NET_CTRL_GUEST_OFFLOADS_SET 0
410
411/*
412 * Control notifications coalescing.
413 *
414 * Request the device to change the notifications coalescing parameters.
415 *
416 * Available with the VIRTIO_NET_F_NOTF_COAL feature bit.
417 */
418#define VIRTIO_NET_CTRL_NOTF_COAL 6
419/*
420 * Set the tx-usecs/tx-max-packets parameters.
421 */
422struct virtio_net_ctrl_coal_tx {
423 /* Maximum number of packets to send before a TX notification */
424 __le32 tx_max_packets;
425 /* Maximum number of usecs to delay a TX notification */
426 __le32 tx_usecs;
427};
428
429#define VIRTIO_NET_CTRL_NOTF_COAL_TX_SET 0
430
431/*
432 * Set the rx-usecs/rx-max-packets parameters.
433 */
434struct virtio_net_ctrl_coal_rx {
435 /* Maximum number of packets to receive before a RX notification */
436 __le32 rx_max_packets;
437 /* Maximum number of usecs to delay a RX notification */
438 __le32 rx_usecs;
439};
440
441#define VIRTIO_NET_CTRL_NOTF_COAL_RX_SET 1
442#define VIRTIO_NET_CTRL_NOTF_COAL_VQ_SET 2
443#define VIRTIO_NET_CTRL_NOTF_COAL_VQ_GET 3
444
445struct virtio_net_ctrl_coal {
446 __le32 max_packets;
447 __le32 max_usecs;
448};
449
450struct virtio_net_ctrl_coal_vq {
451 __le16 vqn;
452 __le16 reserved;
453 struct virtio_net_ctrl_coal coal;
454};
455
456/*
457 * Device Statistics
458 */
459#define VIRTIO_NET_CTRL_STATS 8
460#define VIRTIO_NET_CTRL_STATS_QUERY 0
461#define VIRTIO_NET_CTRL_STATS_GET 1
462
463struct virtio_net_stats_capabilities {
464
465#define VIRTIO_NET_STATS_TYPE_CVQ (1ULL << 32)
466
467#define VIRTIO_NET_STATS_TYPE_RX_BASIC (1ULL << 0)
468#define VIRTIO_NET_STATS_TYPE_RX_CSUM (1ULL << 1)
469#define VIRTIO_NET_STATS_TYPE_RX_GSO (1ULL << 2)
470#define VIRTIO_NET_STATS_TYPE_RX_SPEED (1ULL << 3)
471
472#define VIRTIO_NET_STATS_TYPE_TX_BASIC (1ULL << 16)
473#define VIRTIO_NET_STATS_TYPE_TX_CSUM (1ULL << 17)
474#define VIRTIO_NET_STATS_TYPE_TX_GSO (1ULL << 18)
475#define VIRTIO_NET_STATS_TYPE_TX_SPEED (1ULL << 19)
476
477 __le64 supported_stats_types[1];
478};
479
480struct virtio_net_ctrl_queue_stats {
481 struct {
482 __le16 vq_index;
483 __le16 reserved[3];
484 __le64 types_bitmap[1];
485 } stats[1];
486};
487
488struct virtio_net_stats_reply_hdr {
489#define VIRTIO_NET_STATS_TYPE_REPLY_CVQ 32
490
491#define VIRTIO_NET_STATS_TYPE_REPLY_RX_BASIC 0
492#define VIRTIO_NET_STATS_TYPE_REPLY_RX_CSUM 1
493#define VIRTIO_NET_STATS_TYPE_REPLY_RX_GSO 2
494#define VIRTIO_NET_STATS_TYPE_REPLY_RX_SPEED 3
495
496#define VIRTIO_NET_STATS_TYPE_REPLY_TX_BASIC 16
497#define VIRTIO_NET_STATS_TYPE_REPLY_TX_CSUM 17
498#define VIRTIO_NET_STATS_TYPE_REPLY_TX_GSO 18
499#define VIRTIO_NET_STATS_TYPE_REPLY_TX_SPEED 19
500 __u8 type;
501 __u8 reserved;
502 __le16 vq_index;
503 __le16 reserved1;
504 __le16 size;
505};
506
507struct virtio_net_stats_cvq {
508 struct virtio_net_stats_reply_hdr hdr;
509
510 __le64 command_num;
511 __le64 ok_num;
512};
513
514struct virtio_net_stats_rx_basic {
515 struct virtio_net_stats_reply_hdr hdr;
516
517 __le64 rx_notifications;
518
519 __le64 rx_packets;
520 __le64 rx_bytes;
521
522 __le64 rx_interrupts;
523
524 __le64 rx_drops;
525 __le64 rx_drop_overruns;
526};
527
528struct virtio_net_stats_tx_basic {
529 struct virtio_net_stats_reply_hdr hdr;
530
531 __le64 tx_notifications;
532
533 __le64 tx_packets;
534 __le64 tx_bytes;
535
536 __le64 tx_interrupts;
537
538 __le64 tx_drops;
539 __le64 tx_drop_malformed;
540};
541
542struct virtio_net_stats_rx_csum {
543 struct virtio_net_stats_reply_hdr hdr;
544
545 __le64 rx_csum_valid;
546 __le64 rx_needs_csum;
547 __le64 rx_csum_none;
548 __le64 rx_csum_bad;
549};
550
551struct virtio_net_stats_tx_csum {
552 struct virtio_net_stats_reply_hdr hdr;
553
554 __le64 tx_csum_none;
555 __le64 tx_needs_csum;
556};
557
558struct virtio_net_stats_rx_gso {
559 struct virtio_net_stats_reply_hdr hdr;
560
561 __le64 rx_gso_packets;
562 __le64 rx_gso_bytes;
563 __le64 rx_gso_packets_coalesced;
564 __le64 rx_gso_bytes_coalesced;
565};
566
567struct virtio_net_stats_tx_gso {
568 struct virtio_net_stats_reply_hdr hdr;
569
570 __le64 tx_gso_packets;
571 __le64 tx_gso_bytes;
572 __le64 tx_gso_segments;
573 __le64 tx_gso_segments_bytes;
574 __le64 tx_gso_packets_noseg;
575 __le64 tx_gso_bytes_noseg;
576};
577
578struct virtio_net_stats_rx_speed {
579 struct virtio_net_stats_reply_hdr hdr;
580
581 /* rx_{packets,bytes}_allowance_exceeded are too long. So rename to
582 * short name.
583 */
584 __le64 rx_ratelimit_packets;
585 __le64 rx_ratelimit_bytes;
586};
587
588struct virtio_net_stats_tx_speed {
589 struct virtio_net_stats_reply_hdr hdr;
590
591 /* tx_{packets,bytes}_allowance_exceeded are too long. So rename to
592 * short name.
593 */
594 __le64 tx_ratelimit_packets;
595 __le64 tx_ratelimit_bytes;
596};
597
598#endif /* _LINUX_VIRTIO_NET_H */