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