include/standard-headers/linux/virtio_net.h

   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 "standard-headers/linux/types.h"
  29 #include "standard-headers/linux/virtio_ids.h"
  30 #include "standard-headers/linux/virtio_config.h"
  31 #include "standard-headers/linux/virtio_types.h"
  32 #include "standard-headers/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         uint8_t 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         uint32_t speed;
 109         /*
 110          * 0x00 - half duplex
 111          * 0x01 - full duplex
 112          * Any other value stands for unknown.
 113          */
 114         uint8_t duplex;
 115         /* maximum size of RSS key */
 116         uint8_t rss_max_key_size;
 117         /* maximum number of indirection table entries */
 118         uint16_t rss_max_indirection_table_length;
 119         /* bitmask of supported VIRTIO_NET_RSS_HASH_ types */
 120         uint32_t supported_hash_types;
 121 } QEMU_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         uint8_t 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         uint8_t 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                         uint16_t segments;
 160                         /* Number of duplicated acks */
 161                         uint16_t 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         uint32_t 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         uint16_t hash_report;
 181         uint16_t 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         uint8_t flags;
 192         /* See VIRTIO_NET_HDR_GSO_* */
 193         uint8_t 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         uint8_t class;
 217         uint8_t cmd;
 218 } QEMU_PACKED;
 219
 220 typedef uint8_t 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         uint8_t macs[][ETH_ALEN];
 262 } QEMU_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         uint32_t hash_types;
 322         uint16_t indirection_table_mask;
 323         uint16_t unclassified_queue;
 324         uint16_t indirection_table[1/* + indirection_table_mask */];
 325         uint16_t max_tx_vq;
 326         uint8_t hash_key_length;
 327         uint8_t 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         uint32_t hash_types;
 342         /* for compatibility with virtio_net_rss_config */
 343         uint16_t reserved[4];
 344         uint8_t hash_key_length;
 345         uint8_t 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         uint32_t tx_max_packets;
 379         /* Maximum number of usecs to delay a TX notification */
 380         uint32_t 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         uint32_t rx_max_packets;
 391         /* Maximum number of usecs to delay a RX notification */
 392         uint32_t 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         uint32_t max_packets;
 401         uint32_t max_usecs;
 402 };
 403
 404 struct  virtio_net_ctrl_coal_vq {
 405         uint16_t vqn;
 406         uint16_t 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         uint64_t supported_stats_types[1];
 432 };
 433
 434 struct virtio_net_ctrl_queue_stats {
 435         struct {
 436                 uint16_t vq_index;
 437                 uint16_t reserved[3];
 438                 uint64_t 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         uint8_t type;
 455         uint8_t reserved;
 456         uint16_t vq_index;
 457         uint16_t reserved1;
 458         uint16_t size;
 459 };
 460
 461 struct virtio_net_stats_cvq {
 462         struct virtio_net_stats_reply_hdr hdr;
 463
 464         uint64_t command_num;
 465         uint64_t ok_num;
 466 };
 467
 468 struct virtio_net_stats_rx_basic {
 469         struct virtio_net_stats_reply_hdr hdr;
 470
 471         uint64_t rx_notifications;
 472
 473         uint64_t rx_packets;
 474         uint64_t rx_bytes;
 475
 476         uint64_t rx_interrupts;
 477
 478         uint64_t rx_drops;
 479         uint64_t rx_drop_overruns;
 480 };
 481
 482 struct virtio_net_stats_tx_basic {
 483         struct virtio_net_stats_reply_hdr hdr;
 484
 485         uint64_t tx_notifications;
 486
 487         uint64_t tx_packets;
 488         uint64_t tx_bytes;
 489
 490         uint64_t tx_interrupts;
 491
 492         uint64_t tx_drops;
 493         uint64_t tx_drop_malformed;
 494 };
 495
 496 struct virtio_net_stats_rx_csum {
 497         struct virtio_net_stats_reply_hdr hdr;
 498
 499         uint64_t rx_csum_valid;
 500         uint64_t rx_needs_csum;
 501         uint64_t rx_csum_none;
 502         uint64_t rx_csum_bad;
 503 };
 504
 505 struct virtio_net_stats_tx_csum {
 506         struct virtio_net_stats_reply_hdr hdr;
 507
 508         uint64_t tx_csum_none;
 509         uint64_t tx_needs_csum;
 510 };
 511
 512 struct virtio_net_stats_rx_gso {
 513         struct virtio_net_stats_reply_hdr hdr;
 514
 515         uint64_t rx_gso_packets;
 516         uint64_t rx_gso_bytes;
 517         uint64_t rx_gso_packets_coalesced;
 518         uint64_t rx_gso_bytes_coalesced;
 519 };
 520
 521 struct virtio_net_stats_tx_gso {
 522         struct virtio_net_stats_reply_hdr hdr;
 523
 524         uint64_t tx_gso_packets;
 525         uint64_t tx_gso_bytes;
 526         uint64_t tx_gso_segments;
 527         uint64_t tx_gso_segments_bytes;
 528         uint64_t tx_gso_packets_noseg;
 529         uint64_t 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         uint64_t rx_ratelimit_packets;
 539         uint64_t 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         uint64_t tx_ratelimit_packets;
 549         uint64_t tx_ratelimit_bytes;
 550 };
 551
 552 #endif /* _LINUX_VIRTIO_NET_H */