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