drivers/net/hyperv/hyperv_net.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  *
   4  * Copyright (c) 2011, Microsoft Corporation.
   5  *
   6  * Authors:
   7  *   Haiyang Zhang <haiyangz@microsoft.com>
   8  *   Hank Janssen  <hjanssen@microsoft.com>
   9  *   K. Y. Srinivasan <kys@microsoft.com>
  10  */
  11
  12 #ifndef _HYPERV_NET_H
  13 #define _HYPERV_NET_H
  14
  15 #include <linux/list.h>
  16 #include <linux/hyperv.h>
  17 #include <linux/rndis.h>
  18
  19 /* RSS related */
  20 #define OID_GEN_RECEIVE_SCALE_CAPABILITIES 0x00010203  /* query only */
  21 #define OID_GEN_RECEIVE_SCALE_PARAMETERS 0x00010204  /* query and set */
  22
  23 #define NDIS_OBJECT_TYPE_RSS_CAPABILITIES 0x88
  24 #define NDIS_OBJECT_TYPE_RSS_PARAMETERS 0x89
  25 #define NDIS_OBJECT_TYPE_OFFLOAD        0xa7
  26
  27 #define NDIS_RECEIVE_SCALE_CAPABILITIES_REVISION_2 2
  28 #define NDIS_RECEIVE_SCALE_PARAMETERS_REVISION_2 2
  29
  30 struct ndis_obj_header {
  31         u8 type;
  32         u8 rev;
  33         u16 size;
  34 } __packed;
  35
  36 /* ndis_recv_scale_cap/cap_flag */
  37 #define NDIS_RSS_CAPS_MESSAGE_SIGNALED_INTERRUPTS 0x01000000
  38 #define NDIS_RSS_CAPS_CLASSIFICATION_AT_ISR       0x02000000
  39 #define NDIS_RSS_CAPS_CLASSIFICATION_AT_DPC       0x04000000
  40 #define NDIS_RSS_CAPS_USING_MSI_X                 0x08000000
  41 #define NDIS_RSS_CAPS_RSS_AVAILABLE_ON_PORTS      0x10000000
  42 #define NDIS_RSS_CAPS_SUPPORTS_MSI_X              0x20000000
  43 #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV4          0x00000100
  44 #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV6          0x00000200
  45 #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV6_EX       0x00000400
  46
  47 struct ndis_recv_scale_cap { /* NDIS_RECEIVE_SCALE_CAPABILITIES */
  48         struct ndis_obj_header hdr;
  49         u32 cap_flag;
  50         u32 num_int_msg;
  51         u32 num_recv_que;
  52         u16 num_indirect_tabent;
  53 } __packed;
  54
  55
  56 /* ndis_recv_scale_param flags */
  57 #define NDIS_RSS_PARAM_FLAG_BASE_CPU_UNCHANGED     0x0001
  58 #define NDIS_RSS_PARAM_FLAG_HASH_INFO_UNCHANGED    0x0002
  59 #define NDIS_RSS_PARAM_FLAG_ITABLE_UNCHANGED       0x0004
  60 #define NDIS_RSS_PARAM_FLAG_HASH_KEY_UNCHANGED     0x0008
  61 #define NDIS_RSS_PARAM_FLAG_DISABLE_RSS            0x0010
  62
  63 /* Hash info bits */
  64 #define NDIS_HASH_FUNC_TOEPLITZ 0x00000001
  65 #define NDIS_HASH_IPV4          0x00000100
  66 #define NDIS_HASH_TCP_IPV4      0x00000200
  67 #define NDIS_HASH_IPV6          0x00000400
  68 #define NDIS_HASH_IPV6_EX       0x00000800
  69 #define NDIS_HASH_TCP_IPV6      0x00001000
  70 #define NDIS_HASH_TCP_IPV6_EX   0x00002000
  71
  72 #define NDIS_RSS_INDIRECTION_TABLE_MAX_SIZE_REVISION_2 (128 * 4)
  73 #define NDIS_RSS_HASH_SECRET_KEY_MAX_SIZE_REVISION_2   40
  74
  75 #define ITAB_NUM 128
  76
  77 struct ndis_recv_scale_param { /* NDIS_RECEIVE_SCALE_PARAMETERS */
  78         struct ndis_obj_header hdr;
  79
  80         /* Qualifies the rest of the information */
  81         u16 flag;
  82
  83         /* The base CPU number to do receive processing. not used */
  84         u16 base_cpu_number;
  85
  86         /* This describes the hash function and type being enabled */
  87         u32 hashinfo;
  88
  89         /* The size of indirection table array */
  90         u16 indirect_tabsize;
  91
  92         /* The offset of the indirection table from the beginning of this
  93          * structure
  94          */
  95         u32 indirect_taboffset;
  96
  97         /* The size of the hash secret key */
  98         u16 hashkey_size;
  99
 100         /* The offset of the secret key from the beginning of this structure */
 101         u32 hashkey_offset;
 102
 103         u32 processor_masks_offset;
 104         u32 num_processor_masks;
 105         u32 processor_masks_entry_size;
 106 };
 107
 108 /* Fwd declaration */
 109 struct ndis_tcp_ip_checksum_info;
 110 struct ndis_pkt_8021q_info;
 111
 112 /*
 113  * Represent netvsc packet which contains 1 RNDIS and 1 ethernet frame
 114  * within the RNDIS
 115  *
 116  * The size of this structure is less than 48 bytes and we can now
 117  * place this structure in the skb->cb field.
 118  */
 119 struct hv_netvsc_packet {
 120         /* Bookkeeping stuff */
 121         u8 cp_partial; /* partial copy into send buffer */
 122
 123         u8 rmsg_size; /* RNDIS header and PPI size */
 124         u8 rmsg_pgcnt; /* page count of RNDIS header and PPI */
 125         u8 page_buf_cnt;
 126
 127         u16 q_idx;
 128         u16 total_packets;
 129
 130         u32 total_bytes;
 131         u32 send_buf_index;
 132         u32 total_data_buflen;
 133 };
 134
 135 #define NETVSC_HASH_KEYLEN 40
 136
 137 struct netvsc_device_info {
 138         unsigned char mac_adr[ETH_ALEN];
 139         u32  num_chn;
 140         u32  send_sections;
 141         u32  recv_sections;
 142         u32  send_section_size;
 143         u32  recv_section_size;
 144
 145         u8 rss_key[NETVSC_HASH_KEYLEN];
 146 };
 147
 148 enum rndis_device_state {
 149         RNDIS_DEV_UNINITIALIZED = 0,
 150         RNDIS_DEV_INITIALIZING,
 151         RNDIS_DEV_INITIALIZED,
 152         RNDIS_DEV_DATAINITIALIZED,
 153 };
 154
 155 struct rndis_device {
 156         struct net_device *ndev;
 157
 158         enum rndis_device_state state;
 159
 160         atomic_t new_req_id;
 161
 162         spinlock_t request_lock;
 163         struct list_head req_list;
 164
 165         struct work_struct mcast_work;
 166         u32 filter;
 167
 168         bool link_state;        /* 0 - link up, 1 - link down */
 169
 170         u8 hw_mac_adr[ETH_ALEN];
 171         u8 rss_key[NETVSC_HASH_KEYLEN];
 172         u16 rx_table[ITAB_NUM];
 173 };
 174
 175
 176 /* Interface */
 177 struct rndis_message;
 178 struct ndis_offload_params;
 179 struct netvsc_device;
 180 struct netvsc_channel;
 181 struct net_device_context;
 182
 183 extern u32 netvsc_ring_bytes;
 184
 185 struct netvsc_device *netvsc_device_add(struct hv_device *device,
 186                                         const struct netvsc_device_info *info);
 187 int netvsc_alloc_recv_comp_ring(struct netvsc_device *net_device, u32 q_idx);
 188 void netvsc_device_remove(struct hv_device *device);
 189 int netvsc_send(struct net_device *net,
 190                 struct hv_netvsc_packet *packet,
 191                 struct rndis_message *rndis_msg,
 192                 struct hv_page_buffer *page_buffer,
 193                 struct sk_buff *skb);
 194 void netvsc_linkstatus_callback(struct net_device *net,
 195                                 struct rndis_message *resp);
 196 int netvsc_recv_callback(struct net_device *net,
 197                          struct netvsc_device *nvdev,
 198                          struct netvsc_channel *nvchan);
 199 void netvsc_channel_cb(void *context);
 200 int netvsc_poll(struct napi_struct *napi, int budget);
 201
 202 int rndis_set_subchannel(struct net_device *ndev,
 203                          struct netvsc_device *nvdev,
 204                          struct netvsc_device_info *dev_info);
 205 int rndis_filter_open(struct netvsc_device *nvdev);
 206 int rndis_filter_close(struct netvsc_device *nvdev);
 207 struct netvsc_device *rndis_filter_device_add(struct hv_device *dev,
 208                                               struct netvsc_device_info *info);
 209 void rndis_filter_update(struct netvsc_device *nvdev);
 210 void rndis_filter_device_remove(struct hv_device *dev,
 211                                 struct netvsc_device *nvdev);
 212 int rndis_filter_set_rss_param(struct rndis_device *rdev,
 213                                const u8 *key);
 214 int rndis_filter_set_offload_params(struct net_device *ndev,
 215                                     struct netvsc_device *nvdev,
 216                                     struct ndis_offload_params *req_offloads);
 217 int rndis_filter_receive(struct net_device *ndev,
 218                          struct netvsc_device *net_dev,
 219                          struct netvsc_channel *nvchan,
 220                          void *data, u32 buflen);
 221
 222 int rndis_filter_set_device_mac(struct netvsc_device *ndev,
 223                                 const char *mac);
 224
 225 void netvsc_switch_datapath(struct net_device *nv_dev, bool vf);
 226
 227 #define NVSP_INVALID_PROTOCOL_VERSION   ((u32)0xFFFFFFFF)
 228
 229 #define NVSP_PROTOCOL_VERSION_1         2
 230 #define NVSP_PROTOCOL_VERSION_2         0x30002
 231 #define NVSP_PROTOCOL_VERSION_4         0x40000
 232 #define NVSP_PROTOCOL_VERSION_5         0x50000
 233 #define NVSP_PROTOCOL_VERSION_6         0x60000
 234 #define NVSP_PROTOCOL_VERSION_61        0x60001
 235
 236 enum {
 237         NVSP_MSG_TYPE_NONE = 0,
 238
 239         /* Init Messages */
 240         NVSP_MSG_TYPE_INIT                      = 1,
 241         NVSP_MSG_TYPE_INIT_COMPLETE             = 2,
 242
 243         NVSP_VERSION_MSG_START                  = 100,
 244
 245         /* Version 1 Messages */
 246         NVSP_MSG1_TYPE_SEND_NDIS_VER            = NVSP_VERSION_MSG_START,
 247
 248         NVSP_MSG1_TYPE_SEND_RECV_BUF,
 249         NVSP_MSG1_TYPE_SEND_RECV_BUF_COMPLETE,
 250         NVSP_MSG1_TYPE_REVOKE_RECV_BUF,
 251
 252         NVSP_MSG1_TYPE_SEND_SEND_BUF,
 253         NVSP_MSG1_TYPE_SEND_SEND_BUF_COMPLETE,
 254         NVSP_MSG1_TYPE_REVOKE_SEND_BUF,
 255
 256         NVSP_MSG1_TYPE_SEND_RNDIS_PKT,
 257         NVSP_MSG1_TYPE_SEND_RNDIS_PKT_COMPLETE,
 258
 259         /* Version 2 messages */
 260         NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF,
 261         NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF_COMP,
 262         NVSP_MSG2_TYPE_REVOKE_CHIMNEY_DELEGATED_BUF,
 263
 264         NVSP_MSG2_TYPE_RESUME_CHIMNEY_RX_INDICATION,
 265
 266         NVSP_MSG2_TYPE_TERMINATE_CHIMNEY,
 267         NVSP_MSG2_TYPE_TERMINATE_CHIMNEY_COMP,
 268
 269         NVSP_MSG2_TYPE_INDICATE_CHIMNEY_EVENT,
 270
 271         NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT,
 272         NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT_COMP,
 273
 274         NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ,
 275         NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ_COMP,
 276
 277         NVSP_MSG2_TYPE_ALLOC_RXBUF,
 278         NVSP_MSG2_TYPE_ALLOC_RXBUF_COMP,
 279
 280         NVSP_MSG2_TYPE_FREE_RXBUF,
 281
 282         NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT,
 283         NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT_COMP,
 284
 285         NVSP_MSG2_TYPE_SEND_NDIS_CONFIG,
 286
 287         NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE,
 288         NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP,
 289
 290         NVSP_MSG2_MAX = NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP,
 291
 292         /* Version 4 messages */
 293         NVSP_MSG4_TYPE_SEND_VF_ASSOCIATION,
 294         NVSP_MSG4_TYPE_SWITCH_DATA_PATH,
 295         NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED,
 296
 297         NVSP_MSG4_MAX = NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED,
 298
 299         /* Version 5 messages */
 300         NVSP_MSG5_TYPE_OID_QUERY_EX,
 301         NVSP_MSG5_TYPE_OID_QUERY_EX_COMP,
 302         NVSP_MSG5_TYPE_SUBCHANNEL,
 303         NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE,
 304
 305         NVSP_MSG5_MAX = NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE,
 306
 307         /* Version 6 messages */
 308         NVSP_MSG6_TYPE_PD_API,
 309         NVSP_MSG6_TYPE_PD_POST_BATCH,
 310
 311         NVSP_MSG6_MAX = NVSP_MSG6_TYPE_PD_POST_BATCH
 312 };
 313
 314 enum {
 315         NVSP_STAT_NONE = 0,
 316         NVSP_STAT_SUCCESS,
 317         NVSP_STAT_FAIL,
 318         NVSP_STAT_PROTOCOL_TOO_NEW,
 319         NVSP_STAT_PROTOCOL_TOO_OLD,
 320         NVSP_STAT_INVALID_RNDIS_PKT,
 321         NVSP_STAT_BUSY,
 322         NVSP_STAT_PROTOCOL_UNSUPPORTED,
 323         NVSP_STAT_MAX,
 324 };
 325
 326 struct nvsp_message_header {
 327         u32 msg_type;
 328 };
 329
 330 /* Init Messages */
 331
 332 /*
 333  * This message is used by the VSC to initialize the channel after the channels
 334  * has been opened. This message should never include anything other then
 335  * versioning (i.e. this message will be the same for ever).
 336  */
 337 struct nvsp_message_init {
 338         u32 min_protocol_ver;
 339         u32 max_protocol_ver;
 340 } __packed;
 341
 342 /*
 343  * This message is used by the VSP to complete the initialization of the
 344  * channel. This message should never include anything other then versioning
 345  * (i.e. this message will be the same for ever).
 346  */
 347 struct nvsp_message_init_complete {
 348         u32 negotiated_protocol_ver;
 349         u32 max_mdl_chain_len;
 350         u32 status;
 351 } __packed;
 352
 353 union nvsp_message_init_uber {
 354         struct nvsp_message_init init;
 355         struct nvsp_message_init_complete init_complete;
 356 } __packed;
 357
 358 /* Version 1 Messages */
 359
 360 /*
 361  * This message is used by the VSC to send the NDIS version to the VSP. The VSP
 362  * can use this information when handling OIDs sent by the VSC.
 363  */
 364 struct nvsp_1_message_send_ndis_version {
 365         u32 ndis_major_ver;
 366         u32 ndis_minor_ver;
 367 } __packed;
 368
 369 /*
 370  * This message is used by the VSC to send a receive buffer to the VSP. The VSP
 371  * can then use the receive buffer to send data to the VSC.
 372  */
 373 struct nvsp_1_message_send_receive_buffer {
 374         u32 gpadl_handle;
 375         u16 id;
 376 } __packed;
 377
 378 struct nvsp_1_receive_buffer_section {
 379         u32 offset;
 380         u32 sub_alloc_size;
 381         u32 num_sub_allocs;
 382         u32 end_offset;
 383 } __packed;
 384
 385 /*
 386  * This message is used by the VSP to acknowledge a receive buffer send by the
 387  * VSC. This message must be sent by the VSP before the VSP uses the receive
 388  * buffer.
 389  */
 390 struct nvsp_1_message_send_receive_buffer_complete {
 391         u32 status;
 392         u32 num_sections;
 393
 394         /*
 395          * The receive buffer is split into two parts, a large suballocation
 396          * section and a small suballocation section. These sections are then
 397          * suballocated by a certain size.
 398          */
 399
 400         /*
 401          * For example, the following break up of the receive buffer has 6
 402          * large suballocations and 10 small suballocations.
 403          */
 404
 405         /*
 406          * |            Large Section          |  |   Small Section   |
 407          * ------------------------------------------------------------
 408          * |     |     |     |     |     |     |  | | | | | | | | | | |
 409          * |                                      |
 410          *  LargeOffset                            SmallOffset
 411          */
 412
 413         struct nvsp_1_receive_buffer_section sections[1];
 414 } __packed;
 415
 416 /*
 417  * This message is sent by the VSC to revoke the receive buffer.  After the VSP
 418  * completes this transaction, the vsp should never use the receive buffer
 419  * again.
 420  */
 421 struct nvsp_1_message_revoke_receive_buffer {
 422         u16 id;
 423 };
 424
 425 /*
 426  * This message is used by the VSC to send a send buffer to the VSP. The VSC
 427  * can then use the send buffer to send data to the VSP.
 428  */
 429 struct nvsp_1_message_send_send_buffer {
 430         u32 gpadl_handle;
 431         u16 id;
 432 } __packed;
 433
 434 /*
 435  * This message is used by the VSP to acknowledge a send buffer sent by the
 436  * VSC. This message must be sent by the VSP before the VSP uses the sent
 437  * buffer.
 438  */
 439 struct nvsp_1_message_send_send_buffer_complete {
 440         u32 status;
 441
 442         /*
 443          * The VSC gets to choose the size of the send buffer and the VSP gets
 444          * to choose the sections size of the buffer.  This was done to enable
 445          * dynamic reconfigurations when the cost of GPA-direct buffers
 446          * decreases.
 447          */
 448         u32 section_size;
 449 } __packed;
 450
 451 /*
 452  * This message is sent by the VSC to revoke the send buffer.  After the VSP
 453  * completes this transaction, the vsp should never use the send buffer again.
 454  */
 455 struct nvsp_1_message_revoke_send_buffer {
 456         u16 id;
 457 };
 458
 459 /*
 460  * This message is used by both the VSP and the VSC to send a RNDIS message to
 461  * the opposite channel endpoint.
 462  */
 463 struct nvsp_1_message_send_rndis_packet {
 464         /*
 465          * This field is specified by RNDIS. They assume there's two different
 466          * channels of communication. However, the Network VSP only has one.
 467          * Therefore, the channel travels with the RNDIS packet.
 468          */
 469         u32 channel_type;
 470
 471         /*
 472          * This field is used to send part or all of the data through a send
 473          * buffer. This values specifies an index into the send buffer. If the
 474          * index is 0xFFFFFFFF, then the send buffer is not being used and all
 475          * of the data was sent through other VMBus mechanisms.
 476          */
 477         u32 send_buf_section_index;
 478         u32 send_buf_section_size;
 479 } __packed;
 480
 481 /*
 482  * This message is used by both the VSP and the VSC to complete a RNDIS message
 483  * to the opposite channel endpoint. At this point, the initiator of this
 484  * message cannot use any resources associated with the original RNDIS packet.
 485  */
 486 struct nvsp_1_message_send_rndis_packet_complete {
 487         u32 status;
 488 };
 489
 490 union nvsp_1_message_uber {
 491         struct nvsp_1_message_send_ndis_version send_ndis_ver;
 492
 493         struct nvsp_1_message_send_receive_buffer send_recv_buf;
 494         struct nvsp_1_message_send_receive_buffer_complete
 495                                                 send_recv_buf_complete;
 496         struct nvsp_1_message_revoke_receive_buffer revoke_recv_buf;
 497
 498         struct nvsp_1_message_send_send_buffer send_send_buf;
 499         struct nvsp_1_message_send_send_buffer_complete send_send_buf_complete;
 500         struct nvsp_1_message_revoke_send_buffer revoke_send_buf;
 501
 502         struct nvsp_1_message_send_rndis_packet send_rndis_pkt;
 503         struct nvsp_1_message_send_rndis_packet_complete
 504                                                 send_rndis_pkt_complete;
 505 } __packed;
 506
 507
 508 /*
 509  * Network VSP protocol version 2 messages:
 510  */
 511 struct nvsp_2_vsc_capability {
 512         union {
 513                 u64 data;
 514                 struct {
 515                         u64 vmq:1;
 516                         u64 chimney:1;
 517                         u64 sriov:1;
 518                         u64 ieee8021q:1;
 519                         u64 correlation_id:1;
 520                         u64 teaming:1;
 521                         u64 vsubnetid:1;
 522                         u64 rsc:1;
 523                 };
 524         };
 525 } __packed;
 526
 527 struct nvsp_2_send_ndis_config {
 528         u32 mtu;
 529         u32 reserved;
 530         struct nvsp_2_vsc_capability capability;
 531 } __packed;
 532
 533 /* Allocate receive buffer */
 534 struct nvsp_2_alloc_rxbuf {
 535         /* Allocation ID to match the allocation request and response */
 536         u32 alloc_id;
 537
 538         /* Length of the VM shared memory receive buffer that needs to
 539          * be allocated
 540          */
 541         u32 len;
 542 } __packed;
 543
 544 /* Allocate receive buffer complete */
 545 struct nvsp_2_alloc_rxbuf_comp {
 546         /* The NDIS_STATUS code for buffer allocation */
 547         u32 status;
 548
 549         u32 alloc_id;
 550
 551         /* GPADL handle for the allocated receive buffer */
 552         u32 gpadl_handle;
 553
 554         /* Receive buffer ID */
 555         u64 recv_buf_id;
 556 } __packed;
 557
 558 struct nvsp_2_free_rxbuf {
 559         u64 recv_buf_id;
 560 } __packed;
 561
 562 union nvsp_2_message_uber {
 563         struct nvsp_2_send_ndis_config send_ndis_config;
 564         struct nvsp_2_alloc_rxbuf alloc_rxbuf;
 565         struct nvsp_2_alloc_rxbuf_comp alloc_rxbuf_comp;
 566         struct nvsp_2_free_rxbuf free_rxbuf;
 567 } __packed;
 568
 569 struct nvsp_4_send_vf_association {
 570         /* 1: allocated, serial number is valid. 0: not allocated */
 571         u32 allocated;
 572
 573         /* Serial number of the VF to team with */
 574         u32 serial;
 575 } __packed;
 576
 577 enum nvsp_vm_datapath {
 578         NVSP_DATAPATH_SYNTHETIC = 0,
 579         NVSP_DATAPATH_VF,
 580         NVSP_DATAPATH_MAX
 581 };
 582
 583 struct nvsp_4_sw_datapath {
 584         u32 active_datapath; /* active data path in VM */
 585 } __packed;
 586
 587 union nvsp_4_message_uber {
 588         struct nvsp_4_send_vf_association vf_assoc;
 589         struct nvsp_4_sw_datapath active_dp;
 590 } __packed;
 591
 592 enum nvsp_subchannel_operation {
 593         NVSP_SUBCHANNEL_NONE = 0,
 594         NVSP_SUBCHANNEL_ALLOCATE,
 595         NVSP_SUBCHANNEL_MAX
 596 };
 597
 598 struct nvsp_5_subchannel_request {
 599         u32 op;
 600         u32 num_subchannels;
 601 } __packed;
 602
 603 struct nvsp_5_subchannel_complete {
 604         u32 status;
 605         u32 num_subchannels; /* Actual number of subchannels allocated */
 606 } __packed;
 607
 608 struct nvsp_5_send_indirect_table {
 609         /* The number of entries in the send indirection table */
 610         u32 count;
 611
 612         /* The offset of the send indirection table from top of this struct.
 613          * The send indirection table tells which channel to put the send
 614          * traffic on. Each entry is a channel number.
 615          */
 616         u32 offset;
 617 } __packed;
 618
 619 union nvsp_5_message_uber {
 620         struct nvsp_5_subchannel_request subchn_req;
 621         struct nvsp_5_subchannel_complete subchn_comp;
 622         struct nvsp_5_send_indirect_table send_table;
 623 } __packed;
 624
 625 enum nvsp_6_pd_api_op {
 626         PD_API_OP_CONFIG = 1,
 627         PD_API_OP_SW_DATAPATH, /* Switch Datapath */
 628         PD_API_OP_OPEN_PROVIDER,
 629         PD_API_OP_CLOSE_PROVIDER,
 630         PD_API_OP_CREATE_QUEUE,
 631         PD_API_OP_FLUSH_QUEUE,
 632         PD_API_OP_FREE_QUEUE,
 633         PD_API_OP_ALLOC_COM_BUF, /* Allocate Common Buffer */
 634         PD_API_OP_FREE_COM_BUF, /* Free Common Buffer */
 635         PD_API_OP_MAX
 636 };
 637
 638 struct grp_affinity {
 639         u64 mask;
 640         u16 grp;
 641         u16 reserved[3];
 642 } __packed;
 643
 644 struct nvsp_6_pd_api_req {
 645         u32 op;
 646
 647         union {
 648                 /* MMIO information is sent from the VM to VSP */
 649                 struct __packed {
 650                         u64 mmio_pa; /* MMIO Physical Address */
 651                         u32 mmio_len;
 652
 653                         /* Number of PD queues a VM can support */
 654                         u16 num_subchn;
 655                 } config;
 656
 657                 /* Switch Datapath */
 658                 struct __packed {
 659                         /* Host Datapath Is PacketDirect */
 660                         u8 host_dpath_is_pd;
 661
 662                         /* Guest PacketDirect Is Enabled */
 663                         u8 guest_pd_enabled;
 664                 } sw_dpath;
 665
 666                 /* Open Provider*/
 667                 struct __packed {
 668                         u32 prov_id; /* Provider id */
 669                         u32 flag;
 670                 } open_prov;
 671
 672                 /* Close Provider */
 673                 struct __packed {
 674                         u32 prov_id;
 675                 } cls_prov;
 676
 677                 /* Create Queue*/
 678                 struct __packed {
 679                         u32 prov_id;
 680                         u16 q_id;
 681                         u16 q_size;
 682                         u8 is_recv_q;
 683                         u8 is_rss_q;
 684                         u32 recv_data_len;
 685                         struct grp_affinity affy;
 686                 } cr_q;
 687
 688                 /* Delete Queue*/
 689                 struct __packed {
 690                         u32 prov_id;
 691                         u16 q_id;
 692                 } del_q;
 693
 694                 /* Flush Queue */
 695                 struct __packed {
 696                         u32 prov_id;
 697                         u16 q_id;
 698                 } flush_q;
 699
 700                 /* Allocate Common Buffer */
 701                 struct __packed {
 702                         u32 len;
 703                         u32 pf_node; /* Preferred Node */
 704                         u16 region_id;
 705                 } alloc_com_buf;
 706
 707                 /* Free Common Buffer */
 708                 struct __packed {
 709                         u32 len;
 710                         u64 pa; /* Physical Address */
 711                         u32 pf_node; /* Preferred Node */
 712                         u16 region_id;
 713                         u8 cache_type;
 714                 } free_com_buf;
 715         } __packed;
 716 } __packed;
 717
 718 struct nvsp_6_pd_api_comp {
 719         u32 op;
 720         u32 status;
 721
 722         union {
 723                 struct __packed {
 724                         /* actual number of PD queues allocated to the VM */
 725                         u16 num_pd_q;
 726
 727                         /* Num Receive Rss PD Queues */
 728                         u8 num_rss_q;
 729
 730                         u8 is_supported; /* Is supported by VSP */
 731                         u8 is_enabled; /* Is enabled by VSP */
 732                 } config;
 733
 734                 /* Open Provider */
 735                 struct __packed {
 736                         u32 prov_id;
 737                 } open_prov;
 738
 739                 /* Create Queue */
 740                 struct __packed {
 741                         u32 prov_id;
 742                         u16 q_id;
 743                         u16 q_size;
 744                         u32 recv_data_len;
 745                         struct grp_affinity affy;
 746                 } cr_q;
 747
 748                 /* Allocate Common Buffer */
 749                 struct __packed {
 750                         u64 pa; /* Physical Address */
 751                         u32 len;
 752                         u32 pf_node; /* Preferred Node */
 753                         u16 region_id;
 754                         u8 cache_type;
 755                 } alloc_com_buf;
 756         } __packed;
 757 } __packed;
 758
 759 struct nvsp_6_pd_buf {
 760         u32 region_offset;
 761         u16 region_id;
 762         u16 is_partial:1;
 763         u16 reserved:15;
 764 } __packed;
 765
 766 struct nvsp_6_pd_batch_msg {
 767         struct nvsp_message_header hdr;
 768         u16 count;
 769         u16 guest2host:1;
 770         u16 is_recv:1;
 771         u16 reserved:14;
 772         struct nvsp_6_pd_buf pd_buf[0];
 773 } __packed;
 774
 775 union nvsp_6_message_uber {
 776         struct nvsp_6_pd_api_req pd_req;
 777         struct nvsp_6_pd_api_comp pd_comp;
 778 } __packed;
 779
 780 union nvsp_all_messages {
 781         union nvsp_message_init_uber init_msg;
 782         union nvsp_1_message_uber v1_msg;
 783         union nvsp_2_message_uber v2_msg;
 784         union nvsp_4_message_uber v4_msg;
 785         union nvsp_5_message_uber v5_msg;
 786         union nvsp_6_message_uber v6_msg;
 787 } __packed;
 788
 789 /* ALL Messages */
 790 struct nvsp_message {
 791         struct nvsp_message_header hdr;
 792         union nvsp_all_messages msg;
 793 } __packed;
 794
 795
 796 #define NETVSC_MTU 65535
 797 #define NETVSC_MTU_MIN ETH_MIN_MTU
 798
 799 /* Max buffer sizes allowed by a host */
 800 #define NETVSC_RECEIVE_BUFFER_SIZE              (1024 * 1024 * 31) /* 31MB */
 801 #define NETVSC_RECEIVE_BUFFER_SIZE_LEGACY       (1024 * 1024 * 15) /* 15MB */
 802 #define NETVSC_RECEIVE_BUFFER_DEFAULT           (1024 * 1024 * 16)
 803
 804 #define NETVSC_SEND_BUFFER_SIZE                 (1024 * 1024 * 15)  /* 15MB */
 805 #define NETVSC_SEND_BUFFER_DEFAULT              (1024 * 1024)
 806
 807 #define NETVSC_INVALID_INDEX                    -1
 808
 809 #define NETVSC_SEND_SECTION_SIZE                6144
 810 #define NETVSC_RECV_SECTION_SIZE                1728
 811
 812 /* Default size of TX buf: 1MB, RX buf: 16MB */
 813 #define NETVSC_MIN_TX_SECTIONS  10
 814 #define NETVSC_DEFAULT_TX       (NETVSC_SEND_BUFFER_DEFAULT \
 815                                  / NETVSC_SEND_SECTION_SIZE)
 816 #define NETVSC_MIN_RX_SECTIONS  10
 817 #define NETVSC_DEFAULT_RX       (NETVSC_RECEIVE_BUFFER_DEFAULT \
 818                                  / NETVSC_RECV_SECTION_SIZE)
 819
 820 #define NETVSC_RECEIVE_BUFFER_ID                0xcafe
 821 #define NETVSC_SEND_BUFFER_ID                   0
 822
 823 #define NETVSC_SUPPORTED_HW_FEATURES (NETIF_F_RXCSUM | NETIF_F_IP_CSUM | \
 824                                       NETIF_F_TSO | NETIF_F_IPV6_CSUM | \
 825                                       NETIF_F_TSO6 | NETIF_F_LRO)
 826
 827 #define VRSS_SEND_TAB_SIZE 16  /* must be power of 2 */
 828 #define VRSS_CHANNEL_MAX 64
 829 #define VRSS_CHANNEL_DEFAULT 8
 830
 831 #define RNDIS_MAX_PKT_DEFAULT 8
 832 #define RNDIS_PKT_ALIGN_DEFAULT 8
 833
 834 struct multi_send_data {
 835         struct sk_buff *skb; /* skb containing the pkt */
 836         struct hv_netvsc_packet *pkt; /* netvsc pkt pending */
 837         u32 count; /* counter of batched packets */
 838 };
 839
 840 struct recv_comp_data {
 841         u64 tid; /* transaction id */
 842         u32 status;
 843 };
 844
 845 struct multi_recv_comp {
 846         struct recv_comp_data *slots;
 847         u32 first;      /* first data entry */
 848         u32 next;       /* next entry for writing */
 849 };
 850
 851 #define NVSP_RSC_MAX 562 /* Max #RSC frags in a vmbus xfer page pkt */
 852
 853 struct nvsc_rsc {
 854         const struct ndis_pkt_8021q_info *vlan;
 855         const struct ndis_tcp_ip_checksum_info *csum_info;
 856         u8 is_last; /* last RNDIS msg in a vmtransfer_page */
 857         u32 cnt; /* #fragments in an RSC packet */
 858         u32 pktlen; /* Full packet length */
 859         void *data[NVSP_RSC_MAX];
 860         u32 len[NVSP_RSC_MAX];
 861 };
 862
 863 struct netvsc_stats {
 864         u64 packets;
 865         u64 bytes;
 866         u64 broadcast;
 867         u64 multicast;
 868         struct u64_stats_sync syncp;
 869 };
 870
 871 struct netvsc_ethtool_stats {
 872         unsigned long tx_scattered;
 873         unsigned long tx_no_memory;
 874         unsigned long tx_no_space;
 875         unsigned long tx_too_big;
 876         unsigned long tx_busy;
 877         unsigned long tx_send_full;
 878         unsigned long rx_comp_busy;
 879         unsigned long rx_no_memory;
 880         unsigned long stop_queue;
 881         unsigned long wake_queue;
 882 };
 883
 884 struct netvsc_ethtool_pcpu_stats {
 885         u64     rx_packets;
 886         u64     rx_bytes;
 887         u64     tx_packets;
 888         u64     tx_bytes;
 889         u64     vf_rx_packets;
 890         u64     vf_rx_bytes;
 891         u64     vf_tx_packets;
 892         u64     vf_tx_bytes;
 893 };
 894
 895 struct netvsc_vf_pcpu_stats {
 896         u64     rx_packets;
 897         u64     rx_bytes;
 898         u64     tx_packets;
 899         u64     tx_bytes;
 900         struct u64_stats_sync   syncp;
 901         u32     tx_dropped;
 902 };
 903
 904 struct netvsc_reconfig {
 905         struct list_head list;
 906         u32 event;
 907 };
 908
 909 /* L4 hash bits for different protocols */
 910 #define HV_TCP4_L4HASH 1
 911 #define HV_TCP6_L4HASH 2
 912 #define HV_UDP4_L4HASH 4
 913 #define HV_UDP6_L4HASH 8
 914 #define HV_DEFAULT_L4HASH (HV_TCP4_L4HASH | HV_TCP6_L4HASH | HV_UDP4_L4HASH | \
 915                            HV_UDP6_L4HASH)
 916
 917 /* The context of the netvsc device  */
 918 struct net_device_context {
 919         /* point back to our device context */
 920         struct hv_device *device_ctx;
 921         /* netvsc_device */
 922         struct netvsc_device __rcu *nvdev;
 923         /* list of netvsc net_devices */
 924         struct list_head list;
 925         /* reconfigure work */
 926         struct delayed_work dwork;
 927         /* last reconfig time */
 928         unsigned long last_reconfig;
 929         /* reconfig events */
 930         struct list_head reconfig_events;
 931         /* list protection */
 932         spinlock_t lock;
 933
 934         u32 msg_enable; /* debug level */
 935
 936         u32 tx_checksum_mask;
 937
 938         u32 tx_table[VRSS_SEND_TAB_SIZE];
 939
 940         /* Ethtool settings */
 941         u8 duplex;
 942         u32 speed;
 943         u32 l4_hash; /* L4 hash settings */
 944         struct netvsc_ethtool_stats eth_stats;
 945
 946         /* State to manage the associated VF interface. */
 947         struct net_device __rcu *vf_netdev;
 948         struct netvsc_vf_pcpu_stats __percpu *vf_stats;
 949         struct delayed_work vf_takeover;
 950
 951         /* 1: allocated, serial number is valid. 0: not allocated */
 952         u32 vf_alloc;
 953         /* Serial number of the VF to team with */
 954         u32 vf_serial;
 955 };
 956
 957 /* Per channel data */
 958 struct netvsc_channel {
 959         struct vmbus_channel *channel;
 960         struct netvsc_device *net_device;
 961         const struct vmpacket_descriptor *desc;
 962         struct napi_struct napi;
 963         struct multi_send_data msd;
 964         struct multi_recv_comp mrc;
 965         atomic_t queue_sends;
 966         struct nvsc_rsc rsc;
 967
 968         struct netvsc_stats tx_stats;
 969         struct netvsc_stats rx_stats;
 970 };
 971
 972 /* Per netvsc device */
 973 struct netvsc_device {
 974         u32 nvsp_version;
 975
 976         wait_queue_head_t wait_drain;
 977         bool destroy;
 978         bool tx_disable; /* if true, do not wake up queue again */
 979
 980         /* Receive buffer allocated by us but manages by NetVSP */
 981         void *recv_buf;
 982         u32 recv_buf_size; /* allocated bytes */
 983         u32 recv_buf_gpadl_handle;
 984         u32 recv_section_cnt;
 985         u32 recv_section_size;
 986         u32 recv_completion_cnt;
 987
 988         /* Send buffer allocated by us */
 989         void *send_buf;
 990         u32 send_buf_gpadl_handle;
 991         u32 send_section_cnt;
 992         u32 send_section_size;
 993         unsigned long *send_section_map;
 994
 995         /* Used for NetVSP initialization protocol */
 996         struct completion channel_init_wait;
 997         struct nvsp_message channel_init_pkt;
 998
 999         struct nvsp_message revoke_packet;
1000
1001         u32 max_chn;
1002         u32 num_chn;
1003
1004         atomic_t open_chn;
1005         struct work_struct subchan_work;
1006         wait_queue_head_t subchan_open;
1007
1008         struct rndis_device *extension;
1009
1010         u32 max_pkt; /* max number of pkt in one send, e.g. 8 */
1011         u32 pkt_align; /* alignment bytes, e.g. 8 */
1012
1013         struct netvsc_channel chan_table[VRSS_CHANNEL_MAX];
1014
1015         struct rcu_head rcu;
1016 };
1017
1018 /* NdisInitialize message */
1019 struct rndis_initialize_request {
1020         u32 req_id;
1021         u32 major_ver;
1022         u32 minor_ver;
1023         u32 max_xfer_size;
1024 };
1025
1026 /* Response to NdisInitialize */
1027 struct rndis_initialize_complete {
1028         u32 req_id;
1029         u32 status;
1030         u32 major_ver;
1031         u32 minor_ver;
1032         u32 dev_flags;
1033         u32 medium;
1034         u32 max_pkt_per_msg;
1035         u32 max_xfer_size;
1036         u32 pkt_alignment_factor;
1037         u32 af_list_offset;
1038         u32 af_list_size;
1039 };
1040
1041 /* Call manager devices only: Information about an address family */
1042 /* supported by the device is appended to the response to NdisInitialize. */
1043 struct rndis_co_address_family {
1044         u32 address_family;
1045         u32 major_ver;
1046         u32 minor_ver;
1047 };
1048
1049 /* NdisHalt message */
1050 struct rndis_halt_request {
1051         u32 req_id;
1052 };
1053
1054 /* NdisQueryRequest message */
1055 struct rndis_query_request {
1056         u32 req_id;
1057         u32 oid;
1058         u32 info_buflen;
1059         u32 info_buf_offset;
1060         u32 dev_vc_handle;
1061 };
1062
1063 /* Response to NdisQueryRequest */
1064 struct rndis_query_complete {
1065         u32 req_id;
1066         u32 status;
1067         u32 info_buflen;
1068         u32 info_buf_offset;
1069 };
1070
1071 /* NdisSetRequest message */
1072 struct rndis_set_request {
1073         u32 req_id;
1074         u32 oid;
1075         u32 info_buflen;
1076         u32 info_buf_offset;
1077         u32 dev_vc_handle;
1078 };
1079
1080 /* Response to NdisSetRequest */
1081 struct rndis_set_complete {
1082         u32 req_id;
1083         u32 status;
1084 };
1085
1086 /* NdisReset message */
1087 struct rndis_reset_request {
1088         u32 reserved;
1089 };
1090
1091 /* Response to NdisReset */
1092 struct rndis_reset_complete {
1093         u32 status;
1094         u32 addressing_reset;
1095 };
1096
1097 /* NdisMIndicateStatus message */
1098 struct rndis_indicate_status {
1099         u32 status;
1100         u32 status_buflen;
1101         u32 status_buf_offset;
1102 };
1103
1104 /* Diagnostic information passed as the status buffer in */
1105 /* struct rndis_indicate_status messages signifying error conditions. */
1106 struct rndis_diagnostic_info {
1107         u32 diag_status;
1108         u32 error_offset;
1109 };
1110
1111 /* NdisKeepAlive message */
1112 struct rndis_keepalive_request {
1113         u32 req_id;
1114 };
1115
1116 /* Response to NdisKeepAlive */
1117 struct rndis_keepalive_complete {
1118         u32 req_id;
1119         u32 status;
1120 };
1121
1122 /*
1123  * Data message. All Offset fields contain byte offsets from the beginning of
1124  * struct rndis_packet. All Length fields are in bytes.  VcHandle is set
1125  * to 0 for connectionless data, otherwise it contains the VC handle.
1126  */
1127 struct rndis_packet {
1128         u32 data_offset;
1129         u32 data_len;
1130         u32 oob_data_offset;
1131         u32 oob_data_len;
1132         u32 num_oob_data_elements;
1133         u32 per_pkt_info_offset;
1134         u32 per_pkt_info_len;
1135         u32 vc_handle;
1136         u32 reserved;
1137 };
1138
1139 /* Optional Out of Band data associated with a Data message. */
1140 struct rndis_oobd {
1141         u32 size;
1142         u32 type;
1143         u32 class_info_offset;
1144 };
1145
1146 /* Packet extension field contents associated with a Data message. */
1147 struct rndis_per_packet_info {
1148         u32 size;
1149         u32 type:31;
1150         u32 internal:1;
1151         u32 ppi_offset;
1152 };
1153
1154 enum ndis_per_pkt_info_type {
1155         TCPIP_CHKSUM_PKTINFO,
1156         IPSEC_PKTINFO,
1157         TCP_LARGESEND_PKTINFO,
1158         CLASSIFICATION_HANDLE_PKTINFO,
1159         NDIS_RESERVED,
1160         SG_LIST_PKTINFO,
1161         IEEE_8021Q_INFO,
1162         ORIGINAL_PKTINFO,
1163         PACKET_CANCEL_ID,
1164         NBL_HASH_VALUE = PACKET_CANCEL_ID,
1165         ORIGINAL_NET_BUFLIST,
1166         CACHED_NET_BUFLIST,
1167         SHORT_PKT_PADINFO,
1168         MAX_PER_PKT_INFO
1169 };
1170
1171 enum rndis_per_pkt_info_interal_type {
1172         RNDIS_PKTINFO_ID = 1,
1173         /* Add more members here */
1174
1175         RNDIS_PKTINFO_MAX
1176 };
1177
1178 #define RNDIS_PKTINFO_SUBALLOC BIT(0)
1179 #define RNDIS_PKTINFO_1ST_FRAG BIT(1)
1180 #define RNDIS_PKTINFO_LAST_FRAG BIT(2)
1181
1182 #define RNDIS_PKTINFO_ID_V1 1
1183
1184 struct rndis_pktinfo_id {
1185         u8 ver;
1186         u8 flag;
1187         u16 pkt_id;
1188 };
1189
1190 struct ndis_pkt_8021q_info {
1191         union {
1192                 struct {
1193                         u32 pri:3; /* User Priority */
1194                         u32 cfi:1; /* Canonical Format ID */
1195                         u32 vlanid:12; /* VLAN ID */
1196                         u32 reserved:16;
1197                 };
1198                 u32 value;
1199         };
1200 };
1201
1202 struct ndis_object_header {
1203         u8 type;
1204         u8 revision;
1205         u16 size;
1206 };
1207
1208 #define NDIS_OBJECT_TYPE_DEFAULT        0x80
1209 #define NDIS_OFFLOAD_PARAMETERS_REVISION_3 3
1210 #define NDIS_OFFLOAD_PARAMETERS_REVISION_2 2
1211 #define NDIS_OFFLOAD_PARAMETERS_REVISION_1 1
1212
1213 #define NDIS_OFFLOAD_PARAMETERS_NO_CHANGE 0
1214 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_DISABLED 1
1215 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_ENABLED  2
1216 #define NDIS_OFFLOAD_PARAMETERS_LSOV1_ENABLED  2
1217 #define NDIS_OFFLOAD_PARAMETERS_RSC_DISABLED 1
1218 #define NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED 2
1219 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_DISABLED 1
1220 #define NDIS_OFFLOAD_PARAMETERS_TX_ENABLED_RX_DISABLED 2
1221 #define NDIS_OFFLOAD_PARAMETERS_RX_ENABLED_TX_DISABLED 3
1222 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED 4
1223
1224 #define NDIS_TCP_LARGE_SEND_OFFLOAD_V2_TYPE     1
1225 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV4        0
1226 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV6        1
1227
1228 #define VERSION_4_OFFLOAD_SIZE                  22
1229 /*
1230  * New offload OIDs for NDIS 6
1231  */
1232 #define OID_TCP_OFFLOAD_CURRENT_CONFIG 0xFC01020B /* query only */
1233 #define OID_TCP_OFFLOAD_PARAMETERS 0xFC01020C           /* set only */
1234 #define OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020D/* query only */
1235 #define OID_TCP_CONNECTION_OFFLOAD_CURRENT_CONFIG 0xFC01020E /* query only */
1236 #define OID_TCP_CONNECTION_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020F /* query */
1237 #define OID_OFFLOAD_ENCAPSULATION 0x0101010A /* set/query */
1238
1239 /*
1240  * OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES
1241  * ndis_type: NDIS_OBJTYPE_OFFLOAD
1242  */
1243
1244 #define NDIS_OFFLOAD_ENCAP_NONE         0x0000
1245 #define NDIS_OFFLOAD_ENCAP_NULL         0x0001
1246 #define NDIS_OFFLOAD_ENCAP_8023         0x0002
1247 #define NDIS_OFFLOAD_ENCAP_8023PQ       0x0004
1248 #define NDIS_OFFLOAD_ENCAP_8023PQ_OOB   0x0008
1249 #define NDIS_OFFLOAD_ENCAP_RFC1483      0x0010
1250
1251 struct ndis_csum_offload {
1252         u32     ip4_txenc;
1253         u32     ip4_txcsum;
1254 #define NDIS_TXCSUM_CAP_IP4OPT          0x001
1255 #define NDIS_TXCSUM_CAP_TCP4OPT         0x004
1256 #define NDIS_TXCSUM_CAP_TCP4            0x010
1257 #define NDIS_TXCSUM_CAP_UDP4            0x040
1258 #define NDIS_TXCSUM_CAP_IP4             0x100
1259
1260 #define NDIS_TXCSUM_ALL_TCP4    (NDIS_TXCSUM_CAP_TCP4 | NDIS_TXCSUM_CAP_TCP4OPT)
1261
1262         u32     ip4_rxenc;
1263         u32     ip4_rxcsum;
1264 #define NDIS_RXCSUM_CAP_IP4OPT          0x001
1265 #define NDIS_RXCSUM_CAP_TCP4OPT         0x004
1266 #define NDIS_RXCSUM_CAP_TCP4            0x010
1267 #define NDIS_RXCSUM_CAP_UDP4            0x040
1268 #define NDIS_RXCSUM_CAP_IP4             0x100
1269         u32     ip6_txenc;
1270         u32     ip6_txcsum;
1271 #define NDIS_TXCSUM_CAP_IP6EXT          0x001
1272 #define NDIS_TXCSUM_CAP_TCP6OPT         0x004
1273 #define NDIS_TXCSUM_CAP_TCP6            0x010
1274 #define NDIS_TXCSUM_CAP_UDP6            0x040
1275         u32     ip6_rxenc;
1276         u32     ip6_rxcsum;
1277 #define NDIS_RXCSUM_CAP_IP6EXT          0x001
1278 #define NDIS_RXCSUM_CAP_TCP6OPT         0x004
1279 #define NDIS_RXCSUM_CAP_TCP6            0x010
1280 #define NDIS_RXCSUM_CAP_UDP6            0x040
1281
1282 #define NDIS_TXCSUM_ALL_TCP6    (NDIS_TXCSUM_CAP_TCP6 |         \
1283                                  NDIS_TXCSUM_CAP_TCP6OPT |      \
1284                                  NDIS_TXCSUM_CAP_IP6EXT)
1285 };
1286
1287 struct ndis_lsov1_offload {
1288         u32     encap;
1289         u32     maxsize;
1290         u32     minsegs;
1291         u32     opts;
1292 };
1293
1294 struct ndis_ipsecv1_offload {
1295         u32     encap;
1296         u32     ah_esp;
1297         u32     xport_tun;
1298         u32     ip4_opts;
1299         u32     flags;
1300         u32     ip4_ah;
1301         u32     ip4_esp;
1302 };
1303
1304 struct ndis_lsov2_offload {
1305         u32     ip4_encap;
1306         u32     ip4_maxsz;
1307         u32     ip4_minsg;
1308         u32     ip6_encap;
1309         u32     ip6_maxsz;
1310         u32     ip6_minsg;
1311         u32     ip6_opts;
1312 #define NDIS_LSOV2_CAP_IP6EXT           0x001
1313 #define NDIS_LSOV2_CAP_TCP6OPT          0x004
1314
1315 #define NDIS_LSOV2_CAP_IP6              (NDIS_LSOV2_CAP_IP6EXT | \
1316                                          NDIS_LSOV2_CAP_TCP6OPT)
1317 };
1318
1319 struct ndis_ipsecv2_offload {
1320         u32     encap;
1321         u8      ip6;
1322         u8      ip4opt;
1323         u8      ip6ext;
1324         u8      ah;
1325         u8      esp;
1326         u8      ah_esp;
1327         u8      xport;
1328         u8      tun;
1329         u8      xport_tun;
1330         u8      lso;
1331         u8      extseq;
1332         u32     udp_esp;
1333         u32     auth;
1334         u32     crypto;
1335         u32     sa_caps;
1336 };
1337
1338 struct ndis_rsc_offload {
1339         u8      ip4;
1340         u8      ip6;
1341 };
1342
1343 struct ndis_encap_offload {
1344         u32     flags;
1345         u32     maxhdr;
1346 };
1347
1348 struct ndis_offload {
1349         struct ndis_object_header       header;
1350         struct ndis_csum_offload        csum;
1351         struct ndis_lsov1_offload       lsov1;
1352         struct ndis_ipsecv1_offload     ipsecv1;
1353         struct ndis_lsov2_offload       lsov2;
1354         u32                             flags;
1355         /* NDIS >= 6.1 */
1356         struct ndis_ipsecv2_offload     ipsecv2;
1357         /* NDIS >= 6.30 */
1358         struct ndis_rsc_offload         rsc;
1359         struct ndis_encap_offload       encap_gre;
1360 };
1361
1362 #define NDIS_OFFLOAD_SIZE               sizeof(struct ndis_offload)
1363 #define NDIS_OFFLOAD_SIZE_6_0           offsetof(struct ndis_offload, ipsecv2)
1364 #define NDIS_OFFLOAD_SIZE_6_1           offsetof(struct ndis_offload, rsc)
1365
1366 struct ndis_offload_params {
1367         struct ndis_object_header header;
1368         u8 ip_v4_csum;
1369         u8 tcp_ip_v4_csum;
1370         u8 udp_ip_v4_csum;
1371         u8 tcp_ip_v6_csum;
1372         u8 udp_ip_v6_csum;
1373         u8 lso_v1;
1374         u8 ip_sec_v1;
1375         u8 lso_v2_ipv4;
1376         u8 lso_v2_ipv6;
1377         u8 tcp_connection_ip_v4;
1378         u8 tcp_connection_ip_v6;
1379         u32 flags;
1380         u8 ip_sec_v2;
1381         u8 ip_sec_v2_ip_v4;
1382         struct {
1383                 u8 rsc_ip_v4;
1384                 u8 rsc_ip_v6;
1385         };
1386         struct {
1387                 u8 encapsulated_packet_task_offload;
1388                 u8 encapsulation_types;
1389         };
1390 };
1391
1392 struct ndis_tcp_ip_checksum_info {
1393         union {
1394                 struct {
1395                         u32 is_ipv4:1;
1396                         u32 is_ipv6:1;
1397                         u32 tcp_checksum:1;
1398                         u32 udp_checksum:1;
1399                         u32 ip_header_checksum:1;
1400                         u32 reserved:11;
1401                         u32 tcp_header_offset:10;
1402                 } transmit;
1403                 struct {
1404                         u32 tcp_checksum_failed:1;
1405                         u32 udp_checksum_failed:1;
1406                         u32 ip_checksum_failed:1;
1407                         u32 tcp_checksum_succeeded:1;
1408                         u32 udp_checksum_succeeded:1;
1409                         u32 ip_checksum_succeeded:1;
1410                         u32 loopback:1;
1411                         u32 tcp_checksum_value_invalid:1;
1412                         u32 ip_checksum_value_invalid:1;
1413                 } receive;
1414                 u32  value;
1415         };
1416 };
1417
1418 struct ndis_tcp_lso_info {
1419         union {
1420                 struct {
1421                         u32 unused:30;
1422                         u32 type:1;
1423                         u32 reserved2:1;
1424                 } transmit;
1425                 struct {
1426                         u32 mss:20;
1427                         u32 tcp_header_offset:10;
1428                         u32 type:1;
1429                         u32 reserved2:1;
1430                 } lso_v1_transmit;
1431                 struct {
1432                         u32 tcp_payload:30;
1433                         u32 type:1;
1434                         u32 reserved2:1;
1435                 } lso_v1_transmit_complete;
1436                 struct {
1437                         u32 mss:20;
1438                         u32 tcp_header_offset:10;
1439                         u32 type:1;
1440                         u32 ip_version:1;
1441                 } lso_v2_transmit;
1442                 struct {
1443                         u32 reserved:30;
1444                         u32 type:1;
1445                         u32 reserved2:1;
1446                 } lso_v2_transmit_complete;
1447                 u32  value;
1448         };
1449 };
1450
1451 #define NDIS_VLAN_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1452                 sizeof(struct ndis_pkt_8021q_info))
1453
1454 #define NDIS_CSUM_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1455                 sizeof(struct ndis_tcp_ip_checksum_info))
1456
1457 #define NDIS_LSO_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1458                 sizeof(struct ndis_tcp_lso_info))
1459
1460 #define NDIS_HASH_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1461                 sizeof(u32))
1462
1463 /* Total size of all PPI data */
1464 #define NDIS_ALL_PPI_SIZE (NDIS_VLAN_PPI_SIZE + NDIS_CSUM_PPI_SIZE + \
1465                            NDIS_LSO_PPI_SIZE + NDIS_HASH_PPI_SIZE)
1466
1467 /* Format of Information buffer passed in a SetRequest for the OID */
1468 /* OID_GEN_RNDIS_CONFIG_PARAMETER. */
1469 struct rndis_config_parameter_info {
1470         u32 parameter_name_offset;
1471         u32 parameter_name_length;
1472         u32 parameter_type;
1473         u32 parameter_value_offset;
1474         u32 parameter_value_length;
1475 };
1476
1477 /* Values for ParameterType in struct rndis_config_parameter_info */
1478 #define RNDIS_CONFIG_PARAM_TYPE_INTEGER     0
1479 #define RNDIS_CONFIG_PARAM_TYPE_STRING      2
1480
1481 /* CONDIS Miniport messages for connection oriented devices */
1482 /* that do not implement a call manager. */
1483
1484 /* CoNdisMiniportCreateVc message */
1485 struct rcondis_mp_create_vc {
1486         u32 req_id;
1487         u32 ndis_vc_handle;
1488 };
1489
1490 /* Response to CoNdisMiniportCreateVc */
1491 struct rcondis_mp_create_vc_complete {
1492         u32 req_id;
1493         u32 dev_vc_handle;
1494         u32 status;
1495 };
1496
1497 /* CoNdisMiniportDeleteVc message */
1498 struct rcondis_mp_delete_vc {
1499         u32 req_id;
1500         u32 dev_vc_handle;
1501 };
1502
1503 /* Response to CoNdisMiniportDeleteVc */
1504 struct rcondis_mp_delete_vc_complete {
1505         u32 req_id;
1506         u32 status;
1507 };
1508
1509 /* CoNdisMiniportQueryRequest message */
1510 struct rcondis_mp_query_request {
1511         u32 req_id;
1512         u32 request_type;
1513         u32 oid;
1514         u32 dev_vc_handle;
1515         u32 info_buflen;
1516         u32 info_buf_offset;
1517 };
1518
1519 /* CoNdisMiniportSetRequest message */
1520 struct rcondis_mp_set_request {
1521         u32 req_id;
1522         u32 request_type;
1523         u32 oid;
1524         u32 dev_vc_handle;
1525         u32 info_buflen;
1526         u32 info_buf_offset;
1527 };
1528
1529 /* CoNdisIndicateStatus message */
1530 struct rcondis_indicate_status {
1531         u32 ndis_vc_handle;
1532         u32 status;
1533         u32 status_buflen;
1534         u32 status_buf_offset;
1535 };
1536
1537 /* CONDIS Call/VC parameters */
1538 struct rcondis_specific_parameters {
1539         u32 parameter_type;
1540         u32 parameter_length;
1541         u32 parameter_lffset;
1542 };
1543
1544 struct rcondis_media_parameters {
1545         u32 flags;
1546         u32 reserved1;
1547         u32 reserved2;
1548         struct rcondis_specific_parameters media_specific;
1549 };
1550
1551 struct rndis_flowspec {
1552         u32 token_rate;
1553         u32 token_bucket_size;
1554         u32 peak_bandwidth;
1555         u32 latency;
1556         u32 delay_variation;
1557         u32 service_type;
1558         u32 max_sdu_size;
1559         u32 minimum_policed_size;
1560 };
1561
1562 struct rcondis_call_manager_parameters {
1563         struct rndis_flowspec transmit;
1564         struct rndis_flowspec receive;
1565         struct rcondis_specific_parameters call_mgr_specific;
1566 };
1567
1568 /* CoNdisMiniportActivateVc message */
1569 struct rcondis_mp_activate_vc_request {
1570         u32 req_id;
1571         u32 flags;
1572         u32 dev_vc_handle;
1573         u32 media_params_offset;
1574         u32 media_params_length;
1575         u32 call_mgr_params_offset;
1576         u32 call_mgr_params_length;
1577 };
1578
1579 /* Response to CoNdisMiniportActivateVc */
1580 struct rcondis_mp_activate_vc_complete {
1581         u32 req_id;
1582         u32 status;
1583 };
1584
1585 /* CoNdisMiniportDeactivateVc message */
1586 struct rcondis_mp_deactivate_vc_request {
1587         u32 req_id;
1588         u32 flags;
1589         u32 dev_vc_handle;
1590 };
1591
1592 /* Response to CoNdisMiniportDeactivateVc */
1593 struct rcondis_mp_deactivate_vc_complete {
1594         u32 req_id;
1595         u32 status;
1596 };
1597
1598
1599 /* union with all of the RNDIS messages */
1600 union rndis_message_container {
1601         struct rndis_packet pkt;
1602         struct rndis_initialize_request init_req;
1603         struct rndis_halt_request halt_req;
1604         struct rndis_query_request query_req;
1605         struct rndis_set_request set_req;
1606         struct rndis_reset_request reset_req;
1607         struct rndis_keepalive_request keep_alive_req;
1608         struct rndis_indicate_status indicate_status;
1609         struct rndis_initialize_complete init_complete;
1610         struct rndis_query_complete query_complete;
1611         struct rndis_set_complete set_complete;
1612         struct rndis_reset_complete reset_complete;
1613         struct rndis_keepalive_complete keep_alive_complete;
1614         struct rcondis_mp_create_vc co_miniport_create_vc;
1615         struct rcondis_mp_delete_vc co_miniport_delete_vc;
1616         struct rcondis_indicate_status co_indicate_status;
1617         struct rcondis_mp_activate_vc_request co_miniport_activate_vc;
1618         struct rcondis_mp_deactivate_vc_request co_miniport_deactivate_vc;
1619         struct rcondis_mp_create_vc_complete co_miniport_create_vc_complete;
1620         struct rcondis_mp_delete_vc_complete co_miniport_delete_vc_complete;
1621         struct rcondis_mp_activate_vc_complete co_miniport_activate_vc_complete;
1622         struct rcondis_mp_deactivate_vc_complete
1623                 co_miniport_deactivate_vc_complete;
1624 };
1625
1626 /* Remote NDIS message format */
1627 struct rndis_message {
1628         u32 ndis_msg_type;
1629
1630         /* Total length of this message, from the beginning */
1631         /* of the struct rndis_message, in bytes. */
1632         u32 msg_len;
1633
1634         /* Actual message */
1635         union rndis_message_container msg;
1636 };
1637
1638
1639 /* Handy macros */
1640
1641 /* get the size of an RNDIS message. Pass in the message type, */
1642 /* struct rndis_set_request, struct rndis_packet for example */
1643 #define RNDIS_MESSAGE_SIZE(msg)                         \
1644         (sizeof(msg) + (sizeof(struct rndis_message) -  \
1645          sizeof(union rndis_message_container)))
1646
1647 #define RNDIS_HEADER_SIZE       (sizeof(struct rndis_message) - \
1648                                  sizeof(union rndis_message_container))
1649
1650 #define RNDIS_AND_PPI_SIZE (sizeof(struct rndis_message) + NDIS_ALL_PPI_SIZE)
1651
1652 #define NDIS_PACKET_TYPE_DIRECTED       0x00000001
1653 #define NDIS_PACKET_TYPE_MULTICAST      0x00000002
1654 #define NDIS_PACKET_TYPE_ALL_MULTICAST  0x00000004
1655 #define NDIS_PACKET_TYPE_BROADCAST      0x00000008
1656 #define NDIS_PACKET_TYPE_SOURCE_ROUTING 0x00000010
1657 #define NDIS_PACKET_TYPE_PROMISCUOUS    0x00000020
1658 #define NDIS_PACKET_TYPE_SMT            0x00000040
1659 #define NDIS_PACKET_TYPE_ALL_LOCAL      0x00000080
1660 #define NDIS_PACKET_TYPE_GROUP          0x00000100
1661 #define NDIS_PACKET_TYPE_ALL_FUNCTIONAL 0x00000200
1662 #define NDIS_PACKET_TYPE_FUNCTIONAL     0x00000400
1663 #define NDIS_PACKET_TYPE_MAC_FRAME      0x00000800
1664
1665 #define TRANSPORT_INFO_NOT_IP   0
1666 #define TRANSPORT_INFO_IPV4_TCP 0x01
1667 #define TRANSPORT_INFO_IPV4_UDP 0x02
1668 #define TRANSPORT_INFO_IPV6_TCP 0x10
1669 #define TRANSPORT_INFO_IPV6_UDP 0x20
1670
1671 #endif /* _HYPERV_NET_H */