drivers/net/hyperv/hyperv_net.h

   1 /*
   2  *
   3  * Copyright (c) 2011, Microsoft Corporation.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms and conditions of the GNU General Public License,
   7  * version 2, as published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, see <http://www.gnu.org/licenses/>.
  16  *
  17  * Authors:
  18  *   Haiyang Zhang <haiyangz@microsoft.com>
  19  *   Hank Janssen  <hjanssen@microsoft.com>
  20  *   K. Y. Srinivasan <kys@microsoft.com>
  21  *
  22  */
  23
  24 #ifndef _HYPERV_NET_H
  25 #define _HYPERV_NET_H
  26
  27 #include <linux/list.h>
  28 #include <linux/hyperv.h>
  29 #include <linux/rndis.h>
  30
  31 /* RSS related */
  32 #define OID_GEN_RECEIVE_SCALE_CAPABILITIES 0x00010203  /* query only */
  33 #define OID_GEN_RECEIVE_SCALE_PARAMETERS 0x00010204  /* query and set */
  34
  35 #define NDIS_OBJECT_TYPE_RSS_CAPABILITIES 0x88
  36 #define NDIS_OBJECT_TYPE_RSS_PARAMETERS 0x89
  37
  38 #define NDIS_RECEIVE_SCALE_CAPABILITIES_REVISION_2 2
  39 #define NDIS_RECEIVE_SCALE_PARAMETERS_REVISION_2 2
  40
  41 struct ndis_obj_header {
  42         u8 type;
  43         u8 rev;
  44         u16 size;
  45 } __packed;
  46
  47 /* ndis_recv_scale_cap/cap_flag */
  48 #define NDIS_RSS_CAPS_MESSAGE_SIGNALED_INTERRUPTS 0x01000000
  49 #define NDIS_RSS_CAPS_CLASSIFICATION_AT_ISR       0x02000000
  50 #define NDIS_RSS_CAPS_CLASSIFICATION_AT_DPC       0x04000000
  51 #define NDIS_RSS_CAPS_USING_MSI_X                 0x08000000
  52 #define NDIS_RSS_CAPS_RSS_AVAILABLE_ON_PORTS      0x10000000
  53 #define NDIS_RSS_CAPS_SUPPORTS_MSI_X              0x20000000
  54 #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV4          0x00000100
  55 #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV6          0x00000200
  56 #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV6_EX       0x00000400
  57
  58 struct ndis_recv_scale_cap { /* NDIS_RECEIVE_SCALE_CAPABILITIES */
  59         struct ndis_obj_header hdr;
  60         u32 cap_flag;
  61         u32 num_int_msg;
  62         u32 num_recv_que;
  63         u16 num_indirect_tabent;
  64 } __packed;
  65
  66
  67 /* ndis_recv_scale_param flags */
  68 #define NDIS_RSS_PARAM_FLAG_BASE_CPU_UNCHANGED     0x0001
  69 #define NDIS_RSS_PARAM_FLAG_HASH_INFO_UNCHANGED    0x0002
  70 #define NDIS_RSS_PARAM_FLAG_ITABLE_UNCHANGED       0x0004
  71 #define NDIS_RSS_PARAM_FLAG_HASH_KEY_UNCHANGED     0x0008
  72 #define NDIS_RSS_PARAM_FLAG_DISABLE_RSS            0x0010
  73
  74 /* Hash info bits */
  75 #define NDIS_HASH_FUNC_TOEPLITZ 0x00000001
  76 #define NDIS_HASH_IPV4          0x00000100
  77 #define NDIS_HASH_TCP_IPV4      0x00000200
  78 #define NDIS_HASH_IPV6          0x00000400
  79 #define NDIS_HASH_IPV6_EX       0x00000800
  80 #define NDIS_HASH_TCP_IPV6      0x00001000
  81 #define NDIS_HASH_TCP_IPV6_EX   0x00002000
  82
  83 #define NDIS_RSS_INDIRECTION_TABLE_MAX_SIZE_REVISION_2 (128 * 4)
  84 #define NDIS_RSS_HASH_SECRET_KEY_MAX_SIZE_REVISION_2   40
  85
  86 #define ITAB_NUM 128
  87 #define HASH_KEYLEN NDIS_RSS_HASH_SECRET_KEY_MAX_SIZE_REVISION_2
  88 extern u8 netvsc_hash_key[];
  89
  90 struct ndis_recv_scale_param { /* NDIS_RECEIVE_SCALE_PARAMETERS */
  91         struct ndis_obj_header hdr;
  92
  93         /* Qualifies the rest of the information */
  94         u16 flag;
  95
  96         /* The base CPU number to do receive processing. not used */
  97         u16 base_cpu_number;
  98
  99         /* This describes the hash function and type being enabled */
 100         u32 hashinfo;
 101
 102         /* The size of indirection table array */
 103         u16 indirect_tabsize;
 104
 105         /* The offset of the indirection table from the beginning of this
 106          * structure
 107          */
 108         u32 indirect_taboffset;
 109
 110         /* The size of the hash secret key */
 111         u16 hashkey_size;
 112
 113         /* The offset of the secret key from the beginning of this structure */
 114         u32 kashkey_offset;
 115
 116         u32 processor_masks_offset;
 117         u32 num_processor_masks;
 118         u32 processor_masks_entry_size;
 119 };
 120
 121 /* Fwd declaration */
 122 struct ndis_tcp_ip_checksum_info;
 123
 124 /*
 125  * Represent netvsc packet which contains 1 RNDIS and 1 ethernet frame
 126  * within the RNDIS
 127  */
 128 struct hv_netvsc_packet {
 129         /* Bookkeeping stuff */
 130         u8 status;
 131         u8 is_data_pkt;
 132         u8 xmit_more; /* from skb */
 133         u8 cp_partial; /* partial copy into send buffer */
 134
 135         u8 rmsg_size; /* RNDIS header and PPI size */
 136         u8 rmsg_pgcnt; /* page count of RNDIS header and PPI */
 137         u8 page_buf_cnt;
 138         u8 pad0;
 139
 140         u16 vlan_tci;
 141         u16 q_idx;
 142         u32 send_buf_index;
 143
 144         u32 total_data_buflen;
 145         u32 pad1;
 146
 147
 148         u64 send_completion_tid;
 149         void *send_completion_ctx;
 150         void (*send_completion)(void *context);
 151         struct hv_page_buffer *page_buf;
 152 };
 153
 154 struct netvsc_device_info {
 155         unsigned char mac_adr[ETH_ALEN];
 156         bool link_state;        /* 0 - link up, 1 - link down */
 157         int  ring_size;
 158         u32  max_num_vrss_chns;
 159         u32  num_chn;
 160 };
 161
 162 enum rndis_device_state {
 163         RNDIS_DEV_UNINITIALIZED = 0,
 164         RNDIS_DEV_INITIALIZING,
 165         RNDIS_DEV_INITIALIZED,
 166         RNDIS_DEV_DATAINITIALIZED,
 167 };
 168
 169 struct rndis_device {
 170         struct netvsc_device *net_dev;
 171
 172         enum rndis_device_state state;
 173         bool link_state;
 174         atomic_t new_req_id;
 175
 176         spinlock_t request_lock;
 177         struct list_head req_list;
 178
 179         unsigned char hw_mac_adr[ETH_ALEN];
 180 };
 181
 182
 183 /* Interface */
 184 struct rndis_message;
 185 int netvsc_device_add(struct hv_device *device, void *additional_info);
 186 int netvsc_device_remove(struct hv_device *device);
 187 int netvsc_send(struct hv_device *device,
 188                 struct hv_netvsc_packet *packet,
 189                 struct rndis_message *rndis_msg);
 190 void netvsc_linkstatus_callback(struct hv_device *device_obj,
 191                                 struct rndis_message *resp);
 192 void netvsc_xmit_completion(void *context);
 193 int netvsc_recv_callback(struct hv_device *device_obj,
 194                         struct hv_netvsc_packet *packet,
 195                         void **data,
 196                         struct ndis_tcp_ip_checksum_info *csum_info,
 197                         struct vmbus_channel *channel);
 198 void netvsc_channel_cb(void *context);
 199 int rndis_filter_open(struct hv_device *dev);
 200 int rndis_filter_close(struct hv_device *dev);
 201 int rndis_filter_device_add(struct hv_device *dev,
 202                         void *additional_info);
 203 void rndis_filter_device_remove(struct hv_device *dev);
 204 int rndis_filter_receive(struct hv_device *dev,
 205                         struct hv_netvsc_packet *pkt,
 206                         void **data,
 207                         struct vmbus_channel *channel);
 208
 209 int rndis_filter_set_packet_filter(struct rndis_device *dev, u32 new_filter);
 210 int rndis_filter_set_device_mac(struct hv_device *hdev, char *mac);
 211
 212 #define NVSP_INVALID_PROTOCOL_VERSION   ((u32)0xFFFFFFFF)
 213
 214 #define NVSP_PROTOCOL_VERSION_1         2
 215 #define NVSP_PROTOCOL_VERSION_2         0x30002
 216 #define NVSP_PROTOCOL_VERSION_4         0x40000
 217 #define NVSP_PROTOCOL_VERSION_5         0x50000
 218
 219 enum {
 220         NVSP_MSG_TYPE_NONE = 0,
 221
 222         /* Init Messages */
 223         NVSP_MSG_TYPE_INIT                      = 1,
 224         NVSP_MSG_TYPE_INIT_COMPLETE             = 2,
 225
 226         NVSP_VERSION_MSG_START                  = 100,
 227
 228         /* Version 1 Messages */
 229         NVSP_MSG1_TYPE_SEND_NDIS_VER            = NVSP_VERSION_MSG_START,
 230
 231         NVSP_MSG1_TYPE_SEND_RECV_BUF,
 232         NVSP_MSG1_TYPE_SEND_RECV_BUF_COMPLETE,
 233         NVSP_MSG1_TYPE_REVOKE_RECV_BUF,
 234
 235         NVSP_MSG1_TYPE_SEND_SEND_BUF,
 236         NVSP_MSG1_TYPE_SEND_SEND_BUF_COMPLETE,
 237         NVSP_MSG1_TYPE_REVOKE_SEND_BUF,
 238
 239         NVSP_MSG1_TYPE_SEND_RNDIS_PKT,
 240         NVSP_MSG1_TYPE_SEND_RNDIS_PKT_COMPLETE,
 241
 242         /* Version 2 messages */
 243         NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF,
 244         NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF_COMP,
 245         NVSP_MSG2_TYPE_REVOKE_CHIMNEY_DELEGATED_BUF,
 246
 247         NVSP_MSG2_TYPE_RESUME_CHIMNEY_RX_INDICATION,
 248
 249         NVSP_MSG2_TYPE_TERMINATE_CHIMNEY,
 250         NVSP_MSG2_TYPE_TERMINATE_CHIMNEY_COMP,
 251
 252         NVSP_MSG2_TYPE_INDICATE_CHIMNEY_EVENT,
 253
 254         NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT,
 255         NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT_COMP,
 256
 257         NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ,
 258         NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ_COMP,
 259
 260         NVSP_MSG2_TYPE_ALLOC_RXBUF,
 261         NVSP_MSG2_TYPE_ALLOC_RXBUF_COMP,
 262
 263         NVSP_MSG2_TYPE_FREE_RXBUF,
 264
 265         NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT,
 266         NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT_COMP,
 267
 268         NVSP_MSG2_TYPE_SEND_NDIS_CONFIG,
 269
 270         NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE,
 271         NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP,
 272
 273         NVSP_MSG2_MAX = NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP,
 274
 275         /* Version 4 messages */
 276         NVSP_MSG4_TYPE_SEND_VF_ASSOCIATION,
 277         NVSP_MSG4_TYPE_SWITCH_DATA_PATH,
 278         NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED,
 279
 280         NVSP_MSG4_MAX = NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED,
 281
 282         /* Version 5 messages */
 283         NVSP_MSG5_TYPE_OID_QUERY_EX,
 284         NVSP_MSG5_TYPE_OID_QUERY_EX_COMP,
 285         NVSP_MSG5_TYPE_SUBCHANNEL,
 286         NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE,
 287
 288         NVSP_MSG5_MAX = NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE,
 289 };
 290
 291 enum {
 292         NVSP_STAT_NONE = 0,
 293         NVSP_STAT_SUCCESS,
 294         NVSP_STAT_FAIL,
 295         NVSP_STAT_PROTOCOL_TOO_NEW,
 296         NVSP_STAT_PROTOCOL_TOO_OLD,
 297         NVSP_STAT_INVALID_RNDIS_PKT,
 298         NVSP_STAT_BUSY,
 299         NVSP_STAT_PROTOCOL_UNSUPPORTED,
 300         NVSP_STAT_MAX,
 301 };
 302
 303 struct nvsp_message_header {
 304         u32 msg_type;
 305 };
 306
 307 /* Init Messages */
 308
 309 /*
 310  * This message is used by the VSC to initialize the channel after the channels
 311  * has been opened. This message should never include anything other then
 312  * versioning (i.e. this message will be the same for ever).
 313  */
 314 struct nvsp_message_init {
 315         u32 min_protocol_ver;
 316         u32 max_protocol_ver;
 317 } __packed;
 318
 319 /*
 320  * This message is used by the VSP to complete the initialization of the
 321  * channel. This message should never include anything other then versioning
 322  * (i.e. this message will be the same for ever).
 323  */
 324 struct nvsp_message_init_complete {
 325         u32 negotiated_protocol_ver;
 326         u32 max_mdl_chain_len;
 327         u32 status;
 328 } __packed;
 329
 330 union nvsp_message_init_uber {
 331         struct nvsp_message_init init;
 332         struct nvsp_message_init_complete init_complete;
 333 } __packed;
 334
 335 /* Version 1 Messages */
 336
 337 /*
 338  * This message is used by the VSC to send the NDIS version to the VSP. The VSP
 339  * can use this information when handling OIDs sent by the VSC.
 340  */
 341 struct nvsp_1_message_send_ndis_version {
 342         u32 ndis_major_ver;
 343         u32 ndis_minor_ver;
 344 } __packed;
 345
 346 /*
 347  * This message is used by the VSC to send a receive buffer to the VSP. The VSP
 348  * can then use the receive buffer to send data to the VSC.
 349  */
 350 struct nvsp_1_message_send_receive_buffer {
 351         u32 gpadl_handle;
 352         u16 id;
 353 } __packed;
 354
 355 struct nvsp_1_receive_buffer_section {
 356         u32 offset;
 357         u32 sub_alloc_size;
 358         u32 num_sub_allocs;
 359         u32 end_offset;
 360 } __packed;
 361
 362 /*
 363  * This message is used by the VSP to acknowledge a receive buffer send by the
 364  * VSC. This message must be sent by the VSP before the VSP uses the receive
 365  * buffer.
 366  */
 367 struct nvsp_1_message_send_receive_buffer_complete {
 368         u32 status;
 369         u32 num_sections;
 370
 371         /*
 372          * The receive buffer is split into two parts, a large suballocation
 373          * section and a small suballocation section. These sections are then
 374          * suballocated by a certain size.
 375          */
 376
 377         /*
 378          * For example, the following break up of the receive buffer has 6
 379          * large suballocations and 10 small suballocations.
 380          */
 381
 382         /*
 383          * |            Large Section          |  |   Small Section   |
 384          * ------------------------------------------------------------
 385          * |     |     |     |     |     |     |  | | | | | | | | | | |
 386          * |                                      |
 387          *  LargeOffset                            SmallOffset
 388          */
 389
 390         struct nvsp_1_receive_buffer_section sections[1];
 391 } __packed;
 392
 393 /*
 394  * This message is sent by the VSC to revoke the receive buffer.  After the VSP
 395  * completes this transaction, the vsp should never use the receive buffer
 396  * again.
 397  */
 398 struct nvsp_1_message_revoke_receive_buffer {
 399         u16 id;
 400 };
 401
 402 /*
 403  * This message is used by the VSC to send a send buffer to the VSP. The VSC
 404  * can then use the send buffer to send data to the VSP.
 405  */
 406 struct nvsp_1_message_send_send_buffer {
 407         u32 gpadl_handle;
 408         u16 id;
 409 } __packed;
 410
 411 /*
 412  * This message is used by the VSP to acknowledge a send buffer sent by the
 413  * VSC. This message must be sent by the VSP before the VSP uses the sent
 414  * buffer.
 415  */
 416 struct nvsp_1_message_send_send_buffer_complete {
 417         u32 status;
 418
 419         /*
 420          * The VSC gets to choose the size of the send buffer and the VSP gets
 421          * to choose the sections size of the buffer.  This was done to enable
 422          * dynamic reconfigurations when the cost of GPA-direct buffers
 423          * decreases.
 424          */
 425         u32 section_size;
 426 } __packed;
 427
 428 /*
 429  * This message is sent by the VSC to revoke the send buffer.  After the VSP
 430  * completes this transaction, the vsp should never use the send buffer again.
 431  */
 432 struct nvsp_1_message_revoke_send_buffer {
 433         u16 id;
 434 };
 435
 436 /*
 437  * This message is used by both the VSP and the VSC to send a RNDIS message to
 438  * the opposite channel endpoint.
 439  */
 440 struct nvsp_1_message_send_rndis_packet {
 441         /*
 442          * This field is specified by RNIDS. They assume there's two different
 443          * channels of communication. However, the Network VSP only has one.
 444          * Therefore, the channel travels with the RNDIS packet.
 445          */
 446         u32 channel_type;
 447
 448         /*
 449          * This field is used to send part or all of the data through a send
 450          * buffer. This values specifies an index into the send buffer. If the
 451          * index is 0xFFFFFFFF, then the send buffer is not being used and all
 452          * of the data was sent through other VMBus mechanisms.
 453          */
 454         u32 send_buf_section_index;
 455         u32 send_buf_section_size;
 456 } __packed;
 457
 458 /*
 459  * This message is used by both the VSP and the VSC to complete a RNDIS message
 460  * to the opposite channel endpoint. At this point, the initiator of this
 461  * message cannot use any resources associated with the original RNDIS packet.
 462  */
 463 struct nvsp_1_message_send_rndis_packet_complete {
 464         u32 status;
 465 };
 466
 467 union nvsp_1_message_uber {
 468         struct nvsp_1_message_send_ndis_version send_ndis_ver;
 469
 470         struct nvsp_1_message_send_receive_buffer send_recv_buf;
 471         struct nvsp_1_message_send_receive_buffer_complete
 472                                                 send_recv_buf_complete;
 473         struct nvsp_1_message_revoke_receive_buffer revoke_recv_buf;
 474
 475         struct nvsp_1_message_send_send_buffer send_send_buf;
 476         struct nvsp_1_message_send_send_buffer_complete send_send_buf_complete;
 477         struct nvsp_1_message_revoke_send_buffer revoke_send_buf;
 478
 479         struct nvsp_1_message_send_rndis_packet send_rndis_pkt;
 480         struct nvsp_1_message_send_rndis_packet_complete
 481                                                 send_rndis_pkt_complete;
 482 } __packed;
 483
 484
 485 /*
 486  * Network VSP protocol version 2 messages:
 487  */
 488 struct nvsp_2_vsc_capability {
 489         union {
 490                 u64 data;
 491                 struct {
 492                         u64 vmq:1;
 493                         u64 chimney:1;
 494                         u64 sriov:1;
 495                         u64 ieee8021q:1;
 496                         u64 correlation_id:1;
 497                 };
 498         };
 499 } __packed;
 500
 501 struct nvsp_2_send_ndis_config {
 502         u32 mtu;
 503         u32 reserved;
 504         struct nvsp_2_vsc_capability capability;
 505 } __packed;
 506
 507 /* Allocate receive buffer */
 508 struct nvsp_2_alloc_rxbuf {
 509         /* Allocation ID to match the allocation request and response */
 510         u32 alloc_id;
 511
 512         /* Length of the VM shared memory receive buffer that needs to
 513          * be allocated
 514          */
 515         u32 len;
 516 } __packed;
 517
 518 /* Allocate receive buffer complete */
 519 struct nvsp_2_alloc_rxbuf_comp {
 520         /* The NDIS_STATUS code for buffer allocation */
 521         u32 status;
 522
 523         u32 alloc_id;
 524
 525         /* GPADL handle for the allocated receive buffer */
 526         u32 gpadl_handle;
 527
 528         /* Receive buffer ID */
 529         u64 recv_buf_id;
 530 } __packed;
 531
 532 struct nvsp_2_free_rxbuf {
 533         u64 recv_buf_id;
 534 } __packed;
 535
 536 union nvsp_2_message_uber {
 537         struct nvsp_2_send_ndis_config send_ndis_config;
 538         struct nvsp_2_alloc_rxbuf alloc_rxbuf;
 539         struct nvsp_2_alloc_rxbuf_comp alloc_rxbuf_comp;
 540         struct nvsp_2_free_rxbuf free_rxbuf;
 541 } __packed;
 542
 543 struct nvsp_4_send_vf_association {
 544         /* 1: allocated, serial number is valid. 0: not allocated */
 545         u32 allocated;
 546
 547         /* Serial number of the VF to team with */
 548         u32 serial;
 549 } __packed;
 550
 551 enum nvsp_vm_datapath {
 552         NVSP_DATAPATH_SYNTHETIC = 0,
 553         NVSP_DATAPATH_VF,
 554         NVSP_DATAPATH_MAX
 555 };
 556
 557 struct nvsp_4_sw_datapath {
 558         u32 active_datapath; /* active data path in VM */
 559 } __packed;
 560
 561 union nvsp_4_message_uber {
 562         struct nvsp_4_send_vf_association vf_assoc;
 563         struct nvsp_4_sw_datapath active_dp;
 564 } __packed;
 565
 566 enum nvsp_subchannel_operation {
 567         NVSP_SUBCHANNEL_NONE = 0,
 568         NVSP_SUBCHANNEL_ALLOCATE,
 569         NVSP_SUBCHANNEL_MAX
 570 };
 571
 572 struct nvsp_5_subchannel_request {
 573         u32 op;
 574         u32 num_subchannels;
 575 } __packed;
 576
 577 struct nvsp_5_subchannel_complete {
 578         u32 status;
 579         u32 num_subchannels; /* Actual number of subchannels allocated */
 580 } __packed;
 581
 582 struct nvsp_5_send_indirect_table {
 583         /* The number of entries in the send indirection table */
 584         u32 count;
 585
 586         /* The offset of the send indireciton table from top of this struct.
 587          * The send indirection table tells which channel to put the send
 588          * traffic on. Each entry is a channel number.
 589          */
 590         u32 offset;
 591 } __packed;
 592
 593 union nvsp_5_message_uber {
 594         struct nvsp_5_subchannel_request subchn_req;
 595         struct nvsp_5_subchannel_complete subchn_comp;
 596         struct nvsp_5_send_indirect_table send_table;
 597 } __packed;
 598
 599 union nvsp_all_messages {
 600         union nvsp_message_init_uber init_msg;
 601         union nvsp_1_message_uber v1_msg;
 602         union nvsp_2_message_uber v2_msg;
 603         union nvsp_4_message_uber v4_msg;
 604         union nvsp_5_message_uber v5_msg;
 605 } __packed;
 606
 607 /* ALL Messages */
 608 struct nvsp_message {
 609         struct nvsp_message_header hdr;
 610         union nvsp_all_messages msg;
 611 } __packed;
 612
 613
 614 #define NETVSC_MTU 65536
 615 #define NETVSC_MTU_MIN 68
 616
 617 #define NETVSC_RECEIVE_BUFFER_SIZE              (1024*1024*16)  /* 16MB */
 618 #define NETVSC_RECEIVE_BUFFER_SIZE_LEGACY       (1024*1024*15)  /* 15MB */
 619 #define NETVSC_SEND_BUFFER_SIZE                 (1024 * 1024 * 15)   /* 15MB */
 620 #define NETVSC_INVALID_INDEX                    -1
 621
 622
 623 #define NETVSC_RECEIVE_BUFFER_ID                0xcafe
 624 #define NETVSC_SEND_BUFFER_ID                   0
 625
 626 #define NETVSC_PACKET_SIZE                      4096
 627
 628 #define VRSS_SEND_TAB_SIZE 16
 629
 630 #define RNDIS_MAX_PKT_DEFAULT 8
 631 #define RNDIS_PKT_ALIGN_DEFAULT 8
 632
 633 struct multi_send_data {
 634         spinlock_t lock; /* protect struct multi_send_data */
 635         struct hv_netvsc_packet *pkt; /* netvsc pkt pending */
 636         u32 count; /* counter of batched packets */
 637 };
 638
 639 struct netvsc_stats {
 640         u64 packets;
 641         u64 bytes;
 642         struct u64_stats_sync syncp;
 643 };
 644
 645 struct netvsc_reconfig {
 646         struct list_head list;
 647         u32 event;
 648 };
 649
 650 /* The context of the netvsc device  */
 651 struct net_device_context {
 652         /* point back to our device context */
 653         struct hv_device *device_ctx;
 654         /* reconfigure work */
 655         struct delayed_work dwork;
 656         /* last reconfig time */
 657         unsigned long last_reconfig;
 658         /* reconfig events */
 659         struct list_head reconfig_events;
 660         /* list protection */
 661         spinlock_t lock;
 662
 663         struct work_struct work;
 664         u32 msg_enable; /* debug level */
 665
 666         struct netvsc_stats __percpu *tx_stats;
 667         struct netvsc_stats __percpu *rx_stats;
 668 };
 669
 670 /* Per netvsc device */
 671 struct netvsc_device {
 672         struct hv_device *dev;
 673
 674         u32 nvsp_version;
 675
 676         atomic_t num_outstanding_sends;
 677         wait_queue_head_t wait_drain;
 678         bool start_remove;
 679         bool destroy;
 680
 681         /* Receive buffer allocated by us but manages by NetVSP */
 682         void *recv_buf;
 683         u32 recv_buf_size;
 684         u32 recv_buf_gpadl_handle;
 685         u32 recv_section_cnt;
 686         struct nvsp_1_receive_buffer_section *recv_section;
 687
 688         /* Send buffer allocated by us */
 689         void *send_buf;
 690         u32 send_buf_size;
 691         u32 send_buf_gpadl_handle;
 692         u32 send_section_cnt;
 693         u32 send_section_size;
 694         unsigned long *send_section_map;
 695         int map_words;
 696
 697         /* Used for NetVSP initialization protocol */
 698         struct completion channel_init_wait;
 699         struct nvsp_message channel_init_pkt;
 700
 701         struct nvsp_message revoke_packet;
 702         /* unsigned char HwMacAddr[HW_MACADDR_LEN]; */
 703
 704         struct net_device *ndev;
 705
 706         struct vmbus_channel *chn_table[NR_CPUS];
 707         u32 send_table[VRSS_SEND_TAB_SIZE];
 708         u32 max_chn;
 709         u32 num_chn;
 710         spinlock_t sc_lock; /* Protects num_sc_offered variable */
 711         u32 num_sc_offered;
 712         atomic_t queue_sends[NR_CPUS];
 713
 714         /* Holds rndis device info */
 715         void *extension;
 716
 717         int ring_size;
 718
 719         /* The primary channel callback buffer */
 720         unsigned char *cb_buffer;
 721         /* The sub channel callback buffer */
 722         unsigned char *sub_cb_buf;
 723
 724         struct multi_send_data msd[NR_CPUS];
 725         u32 max_pkt; /* max number of pkt in one send, e.g. 8 */
 726         u32 pkt_align; /* alignment bytes, e.g. 8 */
 727
 728         /* The net device context */
 729         struct net_device_context *nd_ctx;
 730
 731         /* 1: allocated, serial number is valid. 0: not allocated */
 732         u32 vf_alloc;
 733         /* Serial number of the VF to team with */
 734         u32 vf_serial;
 735 };
 736
 737 /* NdisInitialize message */
 738 struct rndis_initialize_request {
 739         u32 req_id;
 740         u32 major_ver;
 741         u32 minor_ver;
 742         u32 max_xfer_size;
 743 };
 744
 745 /* Response to NdisInitialize */
 746 struct rndis_initialize_complete {
 747         u32 req_id;
 748         u32 status;
 749         u32 major_ver;
 750         u32 minor_ver;
 751         u32 dev_flags;
 752         u32 medium;
 753         u32 max_pkt_per_msg;
 754         u32 max_xfer_size;
 755         u32 pkt_alignment_factor;
 756         u32 af_list_offset;
 757         u32 af_list_size;
 758 };
 759
 760 /* Call manager devices only: Information about an address family */
 761 /* supported by the device is appended to the response to NdisInitialize. */
 762 struct rndis_co_address_family {
 763         u32 address_family;
 764         u32 major_ver;
 765         u32 minor_ver;
 766 };
 767
 768 /* NdisHalt message */
 769 struct rndis_halt_request {
 770         u32 req_id;
 771 };
 772
 773 /* NdisQueryRequest message */
 774 struct rndis_query_request {
 775         u32 req_id;
 776         u32 oid;
 777         u32 info_buflen;
 778         u32 info_buf_offset;
 779         u32 dev_vc_handle;
 780 };
 781
 782 /* Response to NdisQueryRequest */
 783 struct rndis_query_complete {
 784         u32 req_id;
 785         u32 status;
 786         u32 info_buflen;
 787         u32 info_buf_offset;
 788 };
 789
 790 /* NdisSetRequest message */
 791 struct rndis_set_request {
 792         u32 req_id;
 793         u32 oid;
 794         u32 info_buflen;
 795         u32 info_buf_offset;
 796         u32 dev_vc_handle;
 797 };
 798
 799 /* Response to NdisSetRequest */
 800 struct rndis_set_complete {
 801         u32 req_id;
 802         u32 status;
 803 };
 804
 805 /* NdisReset message */
 806 struct rndis_reset_request {
 807         u32 reserved;
 808 };
 809
 810 /* Response to NdisReset */
 811 struct rndis_reset_complete {
 812         u32 status;
 813         u32 addressing_reset;
 814 };
 815
 816 /* NdisMIndicateStatus message */
 817 struct rndis_indicate_status {
 818         u32 status;
 819         u32 status_buflen;
 820         u32 status_buf_offset;
 821 };
 822
 823 /* Diagnostic information passed as the status buffer in */
 824 /* struct rndis_indicate_status messages signifying error conditions. */
 825 struct rndis_diagnostic_info {
 826         u32 diag_status;
 827         u32 error_offset;
 828 };
 829
 830 /* NdisKeepAlive message */
 831 struct rndis_keepalive_request {
 832         u32 req_id;
 833 };
 834
 835 /* Response to NdisKeepAlive */
 836 struct rndis_keepalive_complete {
 837         u32 req_id;
 838         u32 status;
 839 };
 840
 841 /*
 842  * Data message. All Offset fields contain byte offsets from the beginning of
 843  * struct rndis_packet. All Length fields are in bytes.  VcHandle is set
 844  * to 0 for connectionless data, otherwise it contains the VC handle.
 845  */
 846 struct rndis_packet {
 847         u32 data_offset;
 848         u32 data_len;
 849         u32 oob_data_offset;
 850         u32 oob_data_len;
 851         u32 num_oob_data_elements;
 852         u32 per_pkt_info_offset;
 853         u32 per_pkt_info_len;
 854         u32 vc_handle;
 855         u32 reserved;
 856 };
 857
 858 /* Optional Out of Band data associated with a Data message. */
 859 struct rndis_oobd {
 860         u32 size;
 861         u32 type;
 862         u32 class_info_offset;
 863 };
 864
 865 /* Packet extension field contents associated with a Data message. */
 866 struct rndis_per_packet_info {
 867         u32 size;
 868         u32 type;
 869         u32 ppi_offset;
 870 };
 871
 872 enum ndis_per_pkt_info_type {
 873         TCPIP_CHKSUM_PKTINFO,
 874         IPSEC_PKTINFO,
 875         TCP_LARGESEND_PKTINFO,
 876         CLASSIFICATION_HANDLE_PKTINFO,
 877         NDIS_RESERVED,
 878         SG_LIST_PKTINFO,
 879         IEEE_8021Q_INFO,
 880         ORIGINAL_PKTINFO,
 881         PACKET_CANCEL_ID,
 882         NBL_HASH_VALUE = PACKET_CANCEL_ID,
 883         ORIGINAL_NET_BUFLIST,
 884         CACHED_NET_BUFLIST,
 885         SHORT_PKT_PADINFO,
 886         MAX_PER_PKT_INFO
 887 };
 888
 889 struct ndis_pkt_8021q_info {
 890         union {
 891                 struct {
 892                         u32 pri:3; /* User Priority */
 893                         u32 cfi:1; /* Canonical Format ID */
 894                         u32 vlanid:12; /* VLAN ID */
 895                         u32 reserved:16;
 896                 };
 897                 u32 value;
 898         };
 899 };
 900
 901 struct ndis_oject_header {
 902         u8 type;
 903         u8 revision;
 904         u16 size;
 905 };
 906
 907 #define NDIS_OBJECT_TYPE_DEFAULT        0x80
 908 #define NDIS_OFFLOAD_PARAMETERS_REVISION_3 3
 909 #define NDIS_OFFLOAD_PARAMETERS_NO_CHANGE 0
 910 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_DISABLED 1
 911 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_ENABLED  2
 912 #define NDIS_OFFLOAD_PARAMETERS_LSOV1_ENABLED  2
 913 #define NDIS_OFFLOAD_PARAMETERS_RSC_DISABLED 1
 914 #define NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED 2
 915 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_DISABLED 1
 916 #define NDIS_OFFLOAD_PARAMETERS_TX_ENABLED_RX_DISABLED 2
 917 #define NDIS_OFFLOAD_PARAMETERS_RX_ENABLED_TX_DISABLED 3
 918 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED 4
 919
 920 #define NDIS_TCP_LARGE_SEND_OFFLOAD_V2_TYPE     1
 921 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV4        0
 922 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV6        1
 923
 924 #define VERSION_4_OFFLOAD_SIZE                  22
 925 /*
 926  * New offload OIDs for NDIS 6
 927  */
 928 #define OID_TCP_OFFLOAD_CURRENT_CONFIG 0xFC01020B /* query only */
 929 #define OID_TCP_OFFLOAD_PARAMETERS 0xFC01020C           /* set only */
 930 #define OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020D/* query only */
 931 #define OID_TCP_CONNECTION_OFFLOAD_CURRENT_CONFIG 0xFC01020E /* query only */
 932 #define OID_TCP_CONNECTION_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020F /* query */
 933 #define OID_OFFLOAD_ENCAPSULATION 0x0101010A /* set/query */
 934
 935 struct ndis_offload_params {
 936         struct ndis_oject_header header;
 937         u8 ip_v4_csum;
 938         u8 tcp_ip_v4_csum;
 939         u8 udp_ip_v4_csum;
 940         u8 tcp_ip_v6_csum;
 941         u8 udp_ip_v6_csum;
 942         u8 lso_v1;
 943         u8 ip_sec_v1;
 944         u8 lso_v2_ipv4;
 945         u8 lso_v2_ipv6;
 946         u8 tcp_connection_ip_v4;
 947         u8 tcp_connection_ip_v6;
 948         u32 flags;
 949         u8 ip_sec_v2;
 950         u8 ip_sec_v2_ip_v4;
 951         struct {
 952                 u8 rsc_ip_v4;
 953                 u8 rsc_ip_v6;
 954         };
 955         struct {
 956                 u8 encapsulated_packet_task_offload;
 957                 u8 encapsulation_types;
 958         };
 959 };
 960
 961 struct ndis_tcp_ip_checksum_info {
 962         union {
 963                 struct {
 964                         u32 is_ipv4:1;
 965                         u32 is_ipv6:1;
 966                         u32 tcp_checksum:1;
 967                         u32 udp_checksum:1;
 968                         u32 ip_header_checksum:1;
 969                         u32 reserved:11;
 970                         u32 tcp_header_offset:10;
 971                 } transmit;
 972                 struct {
 973                         u32 tcp_checksum_failed:1;
 974                         u32 udp_checksum_failed:1;
 975                         u32 ip_checksum_failed:1;
 976                         u32 tcp_checksum_succeeded:1;
 977                         u32 udp_checksum_succeeded:1;
 978                         u32 ip_checksum_succeeded:1;
 979                         u32 loopback:1;
 980                         u32 tcp_checksum_value_invalid:1;
 981                         u32 ip_checksum_value_invalid:1;
 982                 } receive;
 983                 u32  value;
 984         };
 985 };
 986
 987 struct ndis_tcp_lso_info {
 988         union {
 989                 struct {
 990                         u32 unused:30;
 991                         u32 type:1;
 992                         u32 reserved2:1;
 993                 } transmit;
 994                 struct {
 995                         u32 mss:20;
 996                         u32 tcp_header_offset:10;
 997                         u32 type:1;
 998                         u32 reserved2:1;
 999                 } lso_v1_transmit;
1000                 struct {
1001                         u32 tcp_payload:30;
1002                         u32 type:1;
1003                         u32 reserved2:1;
1004                 } lso_v1_transmit_complete;
1005                 struct {
1006                         u32 mss:20;
1007                         u32 tcp_header_offset:10;
1008                         u32 type:1;
1009                         u32 ip_version:1;
1010                 } lso_v2_transmit;
1011                 struct {
1012                         u32 reserved:30;
1013                         u32 type:1;
1014                         u32 reserved2:1;
1015                 } lso_v2_transmit_complete;
1016                 u32  value;
1017         };
1018 };
1019
1020 #define NDIS_VLAN_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1021                 sizeof(struct ndis_pkt_8021q_info))
1022
1023 #define NDIS_CSUM_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1024                 sizeof(struct ndis_tcp_ip_checksum_info))
1025
1026 #define NDIS_LSO_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1027                 sizeof(struct ndis_tcp_lso_info))
1028
1029 #define NDIS_HASH_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1030                 sizeof(u32))
1031
1032 /* Total size of all PPI data */
1033 #define NDIS_ALL_PPI_SIZE (NDIS_VLAN_PPI_SIZE + NDIS_CSUM_PPI_SIZE + \
1034                            NDIS_LSO_PPI_SIZE + NDIS_HASH_PPI_SIZE)
1035
1036 /* Format of Information buffer passed in a SetRequest for the OID */
1037 /* OID_GEN_RNDIS_CONFIG_PARAMETER. */
1038 struct rndis_config_parameter_info {
1039         u32 parameter_name_offset;
1040         u32 parameter_name_length;
1041         u32 parameter_type;
1042         u32 parameter_value_offset;
1043         u32 parameter_value_length;
1044 };
1045
1046 /* Values for ParameterType in struct rndis_config_parameter_info */
1047 #define RNDIS_CONFIG_PARAM_TYPE_INTEGER     0
1048 #define RNDIS_CONFIG_PARAM_TYPE_STRING      2
1049
1050 /* CONDIS Miniport messages for connection oriented devices */
1051 /* that do not implement a call manager. */
1052
1053 /* CoNdisMiniportCreateVc message */
1054 struct rcondis_mp_create_vc {
1055         u32 req_id;
1056         u32 ndis_vc_handle;
1057 };
1058
1059 /* Response to CoNdisMiniportCreateVc */
1060 struct rcondis_mp_create_vc_complete {
1061         u32 req_id;
1062         u32 dev_vc_handle;
1063         u32 status;
1064 };
1065
1066 /* CoNdisMiniportDeleteVc message */
1067 struct rcondis_mp_delete_vc {
1068         u32 req_id;
1069         u32 dev_vc_handle;
1070 };
1071
1072 /* Response to CoNdisMiniportDeleteVc */
1073 struct rcondis_mp_delete_vc_complete {
1074         u32 req_id;
1075         u32 status;
1076 };
1077
1078 /* CoNdisMiniportQueryRequest message */
1079 struct rcondis_mp_query_request {
1080         u32 req_id;
1081         u32 request_type;
1082         u32 oid;
1083         u32 dev_vc_handle;
1084         u32 info_buflen;
1085         u32 info_buf_offset;
1086 };
1087
1088 /* CoNdisMiniportSetRequest message */
1089 struct rcondis_mp_set_request {
1090         u32 req_id;
1091         u32 request_type;
1092         u32 oid;
1093         u32 dev_vc_handle;
1094         u32 info_buflen;
1095         u32 info_buf_offset;
1096 };
1097
1098 /* CoNdisIndicateStatus message */
1099 struct rcondis_indicate_status {
1100         u32 ndis_vc_handle;
1101         u32 status;
1102         u32 status_buflen;
1103         u32 status_buf_offset;
1104 };
1105
1106 /* CONDIS Call/VC parameters */
1107 struct rcondis_specific_parameters {
1108         u32 parameter_type;
1109         u32 parameter_length;
1110         u32 parameter_lffset;
1111 };
1112
1113 struct rcondis_media_parameters {
1114         u32 flags;
1115         u32 reserved1;
1116         u32 reserved2;
1117         struct rcondis_specific_parameters media_specific;
1118 };
1119
1120 struct rndis_flowspec {
1121         u32 token_rate;
1122         u32 token_bucket_size;
1123         u32 peak_bandwidth;
1124         u32 latency;
1125         u32 delay_variation;
1126         u32 service_type;
1127         u32 max_sdu_size;
1128         u32 minimum_policed_size;
1129 };
1130
1131 struct rcondis_call_manager_parameters {
1132         struct rndis_flowspec transmit;
1133         struct rndis_flowspec receive;
1134         struct rcondis_specific_parameters call_mgr_specific;
1135 };
1136
1137 /* CoNdisMiniportActivateVc message */
1138 struct rcondis_mp_activate_vc_request {
1139         u32 req_id;
1140         u32 flags;
1141         u32 dev_vc_handle;
1142         u32 media_params_offset;
1143         u32 media_params_length;
1144         u32 call_mgr_params_offset;
1145         u32 call_mgr_params_length;
1146 };
1147
1148 /* Response to CoNdisMiniportActivateVc */
1149 struct rcondis_mp_activate_vc_complete {
1150         u32 req_id;
1151         u32 status;
1152 };
1153
1154 /* CoNdisMiniportDeactivateVc message */
1155 struct rcondis_mp_deactivate_vc_request {
1156         u32 req_id;
1157         u32 flags;
1158         u32 dev_vc_handle;
1159 };
1160
1161 /* Response to CoNdisMiniportDeactivateVc */
1162 struct rcondis_mp_deactivate_vc_complete {
1163         u32 req_id;
1164         u32 status;
1165 };
1166
1167
1168 /* union with all of the RNDIS messages */
1169 union rndis_message_container {
1170         struct rndis_packet pkt;
1171         struct rndis_initialize_request init_req;
1172         struct rndis_halt_request halt_req;
1173         struct rndis_query_request query_req;
1174         struct rndis_set_request set_req;
1175         struct rndis_reset_request reset_req;
1176         struct rndis_keepalive_request keep_alive_req;
1177         struct rndis_indicate_status indicate_status;
1178         struct rndis_initialize_complete init_complete;
1179         struct rndis_query_complete query_complete;
1180         struct rndis_set_complete set_complete;
1181         struct rndis_reset_complete reset_complete;
1182         struct rndis_keepalive_complete keep_alive_complete;
1183         struct rcondis_mp_create_vc co_miniport_create_vc;
1184         struct rcondis_mp_delete_vc co_miniport_delete_vc;
1185         struct rcondis_indicate_status co_indicate_status;
1186         struct rcondis_mp_activate_vc_request co_miniport_activate_vc;
1187         struct rcondis_mp_deactivate_vc_request co_miniport_deactivate_vc;
1188         struct rcondis_mp_create_vc_complete co_miniport_create_vc_complete;
1189         struct rcondis_mp_delete_vc_complete co_miniport_delete_vc_complete;
1190         struct rcondis_mp_activate_vc_complete co_miniport_activate_vc_complete;
1191         struct rcondis_mp_deactivate_vc_complete
1192                 co_miniport_deactivate_vc_complete;
1193 };
1194
1195 /* Remote NDIS message format */
1196 struct rndis_message {
1197         u32 ndis_msg_type;
1198
1199         /* Total length of this message, from the beginning */
1200         /* of the sruct rndis_message, in bytes. */
1201         u32 msg_len;
1202
1203         /* Actual message */
1204         union rndis_message_container msg;
1205 };
1206
1207
1208 /* Handy macros */
1209
1210 /* get the size of an RNDIS message. Pass in the message type, */
1211 /* struct rndis_set_request, struct rndis_packet for example */
1212 #define RNDIS_MESSAGE_SIZE(msg)                         \
1213         (sizeof(msg) + (sizeof(struct rndis_message) -  \
1214          sizeof(union rndis_message_container)))
1215
1216 /* get pointer to info buffer with message pointer */
1217 #define MESSAGE_TO_INFO_BUFFER(msg)                             \
1218         (((unsigned char *)(msg)) + msg->info_buf_offset)
1219
1220 /* get pointer to status buffer with message pointer */
1221 #define MESSAGE_TO_STATUS_BUFFER(msg)                   \
1222         (((unsigned char *)(msg)) + msg->status_buf_offset)
1223
1224 /* get pointer to OOBD buffer with message pointer */
1225 #define MESSAGE_TO_OOBD_BUFFER(msg)                             \
1226         (((unsigned char *)(msg)) + msg->oob_data_offset)
1227
1228 /* get pointer to data buffer with message pointer */
1229 #define MESSAGE_TO_DATA_BUFFER(msg)                             \
1230         (((unsigned char *)(msg)) + msg->per_pkt_info_offset)
1231
1232 /* get pointer to contained message from NDIS_MESSAGE pointer */
1233 #define RNDIS_MESSAGE_PTR_TO_MESSAGE_PTR(rndis_msg)             \
1234         ((void *) &rndis_msg->msg)
1235
1236 /* get pointer to contained message from NDIS_MESSAGE pointer */
1237 #define RNDIS_MESSAGE_RAW_PTR_TO_MESSAGE_PTR(rndis_msg) \
1238         ((void *) rndis_msg)
1239
1240
1241 #define __struct_bcount(x)
1242
1243
1244
1245 #define RNDIS_HEADER_SIZE       (sizeof(struct rndis_message) - \
1246                                  sizeof(union rndis_message_container))
1247
1248 #define RNDIS_AND_PPI_SIZE (sizeof(struct rndis_message) + NDIS_ALL_PPI_SIZE)
1249
1250 #define NDIS_PACKET_TYPE_DIRECTED       0x00000001
1251 #define NDIS_PACKET_TYPE_MULTICAST      0x00000002
1252 #define NDIS_PACKET_TYPE_ALL_MULTICAST  0x00000004
1253 #define NDIS_PACKET_TYPE_BROADCAST      0x00000008
1254 #define NDIS_PACKET_TYPE_SOURCE_ROUTING 0x00000010
1255 #define NDIS_PACKET_TYPE_PROMISCUOUS    0x00000020
1256 #define NDIS_PACKET_TYPE_SMT            0x00000040
1257 #define NDIS_PACKET_TYPE_ALL_LOCAL      0x00000080
1258 #define NDIS_PACKET_TYPE_GROUP          0x00000100
1259 #define NDIS_PACKET_TYPE_ALL_FUNCTIONAL 0x00000200
1260 #define NDIS_PACKET_TYPE_FUNCTIONAL     0x00000400
1261 #define NDIS_PACKET_TYPE_MAC_FRAME      0x00000800
1262
1263 #define INFO_IPV4       2
1264 #define INFO_IPV6       4
1265 #define INFO_TCP        2
1266 #define INFO_UDP        4
1267
1268 #define TRANSPORT_INFO_NOT_IP   0
1269 #define TRANSPORT_INFO_IPV4_TCP ((INFO_IPV4 << 16) | INFO_TCP)
1270 #define TRANSPORT_INFO_IPV4_UDP ((INFO_IPV4 << 16) | INFO_UDP)
1271 #define TRANSPORT_INFO_IPV6_TCP ((INFO_IPV6 << 16) | INFO_TCP)
1272 #define TRANSPORT_INFO_IPV6_UDP ((INFO_IPV6 << 16) | INFO_UDP)
1273
1274 static inline struct vmbus_channel *get_channel(struct hv_netvsc_packet *packet,
1275                                         struct netvsc_device *net_device)
1276
1277 {
1278         struct vmbus_channel *out_channel;
1279
1280         out_channel = net_device->chn_table[packet->q_idx];
1281         if (!out_channel) {
1282                 out_channel = net_device->dev->channel;
1283                 packet->q_idx = 0;
1284         }
1285         return out_channel;
1286 }
1287
1288
1289 #endif /* _HYPERV_NET_H */