drivers/net/hyperv/hyperv

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   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  *
   4  * Copyright (c) 2011, Microsoft Corporation.
   5  *
   6  * Authors:
   7  *   Haiyang Zhang <haiyangz@microsoft.com>
   8  *   Hank Janssen  <hjanssen@microsoft.com>
   9  *   K. Y. Srinivasan <kys@microsoft.com>
  10  */
  11 
  12 #ifndef _HYPERV_NET_H
  13 #define _HYPERV_NET_H
  14 
  15 #include <linux/list.h>
  16 #include <linux/hyperv.h>
  17 #include <linux/rndis.h>
  18 
  19 /* RSS related */
  20 #define OID_GEN_RECEIVE_SCALE_CAPABILITIES 0x00010203  /* query only */
  21 #define OID_GEN_RECEIVE_SCALE_PARAMETERS 0x00010204  /* query and set */
  22 
  23 #define NDIS_OBJECT_TYPE_RSS_CAPABILITIES 0x88
  24 #define NDIS_OBJECT_TYPE_RSS_PARAMETERS 0x89
  25 #define NDIS_OBJECT_TYPE_OFFLOAD        0xa7
  26 
  27 #define NDIS_RECEIVE_SCALE_CAPABILITIES_REVISION_2 2
  28 #define NDIS_RECEIVE_SCALE_PARAMETERS_REVISION_2 2
  29 
  30 struct ndis_obj_header {
  31         u8 type;
  32         u8 rev;
  33         u16 size;
  34 } __packed;
  35 
  36 /* ndis_recv_scale_cap/cap_flag */
  37 #define NDIS_RSS_CAPS_MESSAGE_SIGNALED_INTERRUPTS 0x01000000
  38 #define NDIS_RSS_CAPS_CLASSIFICATION_AT_ISR       0x02000000
  39 #define NDIS_RSS_CAPS_CLASSIFICATION_AT_DPC       0x04000000
  40 #define NDIS_RSS_CAPS_USING_MSI_X                 0x08000000
  41 #define NDIS_RSS_CAPS_RSS_AVAILABLE_ON_PORTS      0x10000000
  42 #define NDIS_RSS_CAPS_SUPPORTS_MSI_X              0x20000000
  43 #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV4          0x00000100
  44 #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV6          0x00000200
  45 #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV6_EX       0x00000400
  46 
  47 struct ndis_recv_scale_cap { /* NDIS_RECEIVE_SCALE_CAPABILITIES */
  48         struct ndis_obj_header hdr;
  49         u32 cap_flag;
  50         u32 num_int_msg;
  51         u32 num_recv_que;
  52         u16 num_indirect_tabent;
  53 } __packed;
  54 
  55 
  56 /* ndis_recv_scale_param flags */
  57 #define NDIS_RSS_PARAM_FLAG_BASE_CPU_UNCHANGED     0x0001
  58 #define NDIS_RSS_PARAM_FLAG_HASH_INFO_UNCHANGED    0x0002
  59 #define NDIS_RSS_PARAM_FLAG_ITABLE_UNCHANGED       0x0004
  60 #define NDIS_RSS_PARAM_FLAG_HASH_KEY_UNCHANGED     0x0008
  61 #define NDIS_RSS_PARAM_FLAG_DISABLE_RSS            0x0010
  62 
  63 /* Hash info bits */
  64 #define NDIS_HASH_FUNC_TOEPLITZ 0x00000001
  65 #define NDIS_HASH_IPV4          0x00000100
  66 #define NDIS_HASH_TCP_IPV4      0x00000200
  67 #define NDIS_HASH_IPV6          0x00000400
  68 #define NDIS_HASH_IPV6_EX       0x00000800
  69 #define NDIS_HASH_TCP_IPV6      0x00001000
  70 #define NDIS_HASH_TCP_IPV6_EX   0x00002000
  71 
  72 #define NDIS_RSS_INDIRECTION_TABLE_MAX_SIZE_REVISION_2 (128 * 4)
  73 #define NDIS_RSS_HASH_SECRET_KEY_MAX_SIZE_REVISION_2   40
  74 
  75 #define ITAB_NUM 128
  76 
  77 struct ndis_recv_scale_param { /* NDIS_RECEIVE_SCALE_PARAMETERS */
  78         struct ndis_obj_header hdr;
  79 
  80         /* Qualifies the rest of the information */
  81         u16 flag;
  82 
  83         /* The base CPU number to do receive processing. not used */
  84         u16 base_cpu_number;
  85 
  86         /* This describes the hash function and type being enabled */
  87         u32 hashinfo;
  88 
  89         /* The size of indirection table array */
  90         u16 indirect_tabsize;
  91 
  92         /* The offset of the indirection table from the beginning of this
  93          * structure
  94          */
  95         u32 indirect_taboffset;
  96 
  97         /* The size of the hash secret key */
  98         u16 hashkey_size;
  99 
 100         /* The offset of the secret key from the beginning of this structure */
 101         u32 hashkey_offset;
 102 
 103         u32 processor_masks_offset;
 104         u32 num_processor_masks;
 105         u32 processor_masks_entry_size;
 106 };
 107 
 108 /* Fwd declaration */
 109 struct ndis_tcp_ip_checksum_info;
 110 struct ndis_pkt_8021q_info;
 111 
 112 /*
 113  * Represent netvsc packet which contains 1 RNDIS and 1 ethernet frame
 114  * within the RNDIS
 115  *
 116  * The size of this structure is less than 48 bytes and we can now
 117  * place this structure in the skb->cb field.
 118  */
 119 struct hv_netvsc_packet {
 120         /* Bookkeeping stuff */
 121         u8 cp_partial; /* partial copy into send buffer */
 122 
 123         u8 rmsg_size; /* RNDIS header and PPI size */
 124         u8 rmsg_pgcnt; /* page count of RNDIS header and PPI */
 125         u8 page_buf_cnt;
 126 
 127         u16 q_idx;
 128         u16 total_packets;
 129 
 130         u32 total_bytes;
 131         u32 send_buf_index;
 132         u32 total_data_buflen;
 133 };
 134 
 135 #define NETVSC_HASH_KEYLEN 40
 136 
 137 struct netvsc_device_info {
 138         unsigned char mac_adr[ETH_ALEN];
 139         u32  num_chn;
 140         u32  send_sections;
 141         u32  recv_sections;
 142         u32  send_section_size;
 143         u32  recv_section_size;
 144 
 145         u8 rss_key[NETVSC_HASH_KEYLEN];
 146 };
 147 
 148 enum rndis_device_state {
 149         RNDIS_DEV_UNINITIALIZED = 0,
 150         RNDIS_DEV_INITIALIZING,
 151         RNDIS_DEV_INITIALIZED,
 152         RNDIS_DEV_DATAINITIALIZED,
 153 };
 154 
 155 struct rndis_device {
 156         struct net_device *ndev;
 157 
 158         enum rndis_device_state state;
 159 
 160         atomic_t new_req_id;
 161 
 162         spinlock_t request_lock;
 163         struct list_head req_list;
 164 
 165         struct work_struct mcast_work;
 166         u32 filter;
 167 
 168         bool link_state;        /* 0 - link up, 1 - link down */
 169 
 170         u8 hw_mac_adr[ETH_ALEN];
 171         u8 rss_key[NETVSC_HASH_KEYLEN];
 172 };
 173 
 174 
 175 /* Interface */
 176 struct rndis_message;
 177 struct ndis_offload_params;
 178 struct netvsc_device;
 179 struct netvsc_channel;
 180 struct net_device_context;
 181 
 182 extern u32 netvsc_ring_bytes;
 183 
 184 struct netvsc_device *netvsc_device_add(struct hv_device *device,
 185                                         const struct netvsc_device_info *info);
 186 int netvsc_alloc_recv_comp_ring(struct netvsc_device *net_device, u32 q_idx);
 187 void netvsc_device_remove(struct hv_device *device);
 188 int netvsc_send(struct net_device *net,
 189                 struct hv_netvsc_packet *packet,
 190                 struct rndis_message *rndis_msg,
 191                 struct hv_page_buffer *page_buffer,
 192                 struct sk_buff *skb);
 193 void netvsc_linkstatus_callback(struct net_device *net,
 194                                 struct rndis_message *resp);
 195 int netvsc_recv_callback(struct net_device *net,
 196                          struct netvsc_device *nvdev,
 197                          struct netvsc_channel *nvchan);
 198 void netvsc_channel_cb(void *context);
 199 int netvsc_poll(struct napi_struct *napi, int budget);
 200 
 201 int rndis_set_subchannel(struct net_device *ndev,
 202                          struct netvsc_device *nvdev,
 203                          struct netvsc_device_info *dev_info);
 204 int rndis_filter_open(struct netvsc_device *nvdev);
 205 int rndis_filter_close(struct netvsc_device *nvdev);
 206 struct netvsc_device *rndis_filter_device_add(struct hv_device *dev,
 207                                               struct netvsc_device_info *info);
 208 void rndis_filter_update(struct netvsc_device *nvdev);
 209 void rndis_filter_device_remove(struct hv_device *dev,
 210                                 struct netvsc_device *nvdev);
 211 int rndis_filter_set_rss_param(struct rndis_device *rdev,
 212                                const u8 *key);
 213 int rndis_filter_set_offload_params(struct net_device *ndev,
 214                                     struct netvsc_device *nvdev,
 215                                     struct ndis_offload_params *req_offloads);
 216 int rndis_filter_receive(struct net_device *ndev,
 217                          struct netvsc_device *net_dev,
 218                          struct netvsc_channel *nvchan,
 219                          void *data, u32 buflen);
 220 
 221 int rndis_filter_set_device_mac(struct netvsc_device *ndev,
 222                                 const char *mac);
 223 
 224 void netvsc_switch_datapath(struct net_device *nv_dev, bool vf);
 225 
 226 #define NVSP_INVALID_PROTOCOL_VERSION   ((u32)0xFFFFFFFF)
 227 
 228 #define NVSP_PROTOCOL_VERSION_1         2
 229 #define NVSP_PROTOCOL_VERSION_2         0x30002
 230 #define NVSP_PROTOCOL_VERSION_4         0x40000
 231 #define NVSP_PROTOCOL_VERSION_5         0x50000
 232 #define NVSP_PROTOCOL_VERSION_6         0x60000
 233 #define NVSP_PROTOCOL_VERSION_61        0x60001
 234 
 235 enum {
 236         NVSP_MSG_TYPE_NONE = 0,
 237 
 238         /* Init Messages */
 239         NVSP_MSG_TYPE_INIT                      = 1,
 240         NVSP_MSG_TYPE_INIT_COMPLETE             = 2,
 241 
 242         NVSP_VERSION_MSG_START                  = 100,
 243 
 244         /* Version 1 Messages */
 245         NVSP_MSG1_TYPE_SEND_NDIS_VER            = NVSP_VERSION_MSG_START,
 246 
 247         NVSP_MSG1_TYPE_SEND_RECV_BUF,
 248         NVSP_MSG1_TYPE_SEND_RECV_BUF_COMPLETE,
 249         NVSP_MSG1_TYPE_REVOKE_RECV_BUF,
 250 
 251         NVSP_MSG1_TYPE_SEND_SEND_BUF,
 252         NVSP_MSG1_TYPE_SEND_SEND_BUF_COMPLETE,
 253         NVSP_MSG1_TYPE_REVOKE_SEND_BUF,
 254 
 255         NVSP_MSG1_TYPE_SEND_RNDIS_PKT,
 256         NVSP_MSG1_TYPE_SEND_RNDIS_PKT_COMPLETE,
 257 
 258         /* Version 2 messages */
 259         NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF,
 260         NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF_COMP,
 261         NVSP_MSG2_TYPE_REVOKE_CHIMNEY_DELEGATED_BUF,
 262 
 263         NVSP_MSG2_TYPE_RESUME_CHIMNEY_RX_INDICATION,
 264 
 265         NVSP_MSG2_TYPE_TERMINATE_CHIMNEY,
 266         NVSP_MSG2_TYPE_TERMINATE_CHIMNEY_COMP,
 267 
 268         NVSP_MSG2_TYPE_INDICATE_CHIMNEY_EVENT,
 269 
 270         NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT,
 271         NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT_COMP,
 272 
 273         NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ,
 274         NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ_COMP,
 275 
 276         NVSP_MSG2_TYPE_ALLOC_RXBUF,
 277         NVSP_MSG2_TYPE_ALLOC_RXBUF_COMP,
 278 
 279         NVSP_MSG2_TYPE_FREE_RXBUF,
 280 
 281         NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT,
 282         NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT_COMP,
 283 
 284         NVSP_MSG2_TYPE_SEND_NDIS_CONFIG,
 285 
 286         NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE,
 287         NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP,
 288 
 289         NVSP_MSG2_MAX = NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP,
 290 
 291         /* Version 4 messages */
 292         NVSP_MSG4_TYPE_SEND_VF_ASSOCIATION,
 293         NVSP_MSG4_TYPE_SWITCH_DATA_PATH,
 294         NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED,
 295 
 296         NVSP_MSG4_MAX = NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED,
 297 
 298         /* Version 5 messages */
 299         NVSP_MSG5_TYPE_OID_QUERY_EX,
 300         NVSP_MSG5_TYPE_OID_QUERY_EX_COMP,
 301         NVSP_MSG5_TYPE_SUBCHANNEL,
 302         NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE,
 303 
 304         NVSP_MSG5_MAX = NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE,
 305 
 306         /* Version 6 messages */
 307         NVSP_MSG6_TYPE_PD_API,
 308         NVSP_MSG6_TYPE_PD_POST_BATCH,
 309 
 310         NVSP_MSG6_MAX = NVSP_MSG6_TYPE_PD_POST_BATCH
 311 };
 312 
 313 enum {
 314         NVSP_STAT_NONE = 0,
 315         NVSP_STAT_SUCCESS,
 316         NVSP_STAT_FAIL,
 317         NVSP_STAT_PROTOCOL_TOO_NEW,
 318         NVSP_STAT_PROTOCOL_TOO_OLD,
 319         NVSP_STAT_INVALID_RNDIS_PKT,
 320         NVSP_STAT_BUSY,
 321         NVSP_STAT_PROTOCOL_UNSUPPORTED,
 322         NVSP_STAT_MAX,
 323 };
 324 
 325 struct nvsp_message_header {
 326         u32 msg_type;
 327 };
 328 
 329 /* Init Messages */
 330 
 331 /*
 332  * This message is used by the VSC to initialize the channel after the channels
 333  * has been opened. This message should never include anything other then
 334  * versioning (i.e. this message will be the same for ever).
 335  */
 336 struct nvsp_message_init {
 337         u32 min_protocol_ver;
 338         u32 max_protocol_ver;
 339 } __packed;
 340 
 341 /*
 342  * This message is used by the VSP to complete the initialization of the
 343  * channel. This message should never include anything other then versioning
 344  * (i.e. this message will be the same for ever).
 345  */
 346 struct nvsp_message_init_complete {
 347         u32 negotiated_protocol_ver;
 348         u32 max_mdl_chain_len;
 349         u32 status;
 350 } __packed;
 351 
 352 union nvsp_message_init_uber {
 353         struct nvsp_message_init init;
 354         struct nvsp_message_init_complete init_complete;
 355 } __packed;
 356 
 357 /* Version 1 Messages */
 358 
 359 /*
 360  * This message is used by the VSC to send the NDIS version to the VSP. The VSP
 361  * can use this information when handling OIDs sent by the VSC.
 362  */
 363 struct nvsp_1_message_send_ndis_version {
 364         u32 ndis_major_ver;
 365         u32 ndis_minor_ver;
 366 } __packed;
 367 
 368 /*
 369  * This message is used by the VSC to send a receive buffer to the VSP. The VSP
 370  * can then use the receive buffer to send data to the VSC.
 371  */
 372 struct nvsp_1_message_send_receive_buffer {
 373         u32 gpadl_handle;
 374         u16 id;
 375 } __packed;
 376 
 377 struct nvsp_1_receive_buffer_section {
 378         u32 offset;
 379         u32 sub_alloc_size;
 380         u32 num_sub_allocs;
 381         u32 end_offset;
 382 } __packed;
 383 
 384 /*
 385  * This message is used by the VSP to acknowledge a receive buffer send by the
 386  * VSC. This message must be sent by the VSP before the VSP uses the receive
 387  * buffer.
 388  */
 389 struct nvsp_1_message_send_receive_buffer_complete {
 390         u32 status;
 391         u32 num_sections;
 392 
 393         /*
 394          * The receive buffer is split into two parts, a large suballocation
 395          * section and a small suballocation section. These sections are then
 396          * suballocated by a certain size.
 397          */
 398 
 399         /*
 400          * For example, the following break up of the receive buffer has 6
 401          * large suballocations and 10 small suballocations.
 402          */
 403 
 404         /*
 405          * |            Large Section          |  |   Small Section   |
 406          * ------------------------------------------------------------
 407          * |     |     |     |     |     |     |  | | | | | | | | | | |
 408          * |                                      |
 409          *  LargeOffset                            SmallOffset
 410          */
 411 
 412         struct nvsp_1_receive_buffer_section sections[1];
 413 } __packed;
 414 
 415 /*
 416  * This message is sent by the VSC to revoke the receive buffer.  After the VSP
 417  * completes this transaction, the vsp should never use the receive buffer
 418  * again.
 419  */
 420 struct nvsp_1_message_revoke_receive_buffer {
 421         u16 id;
 422 };
 423 
 424 /*
 425  * This message is used by the VSC to send a send buffer to the VSP. The VSC
 426  * can then use the send buffer to send data to the VSP.
 427  */
 428 struct nvsp_1_message_send_send_buffer {
 429         u32 gpadl_handle;
 430         u16 id;
 431 } __packed;
 432 
 433 /*
 434  * This message is used by the VSP to acknowledge a send buffer sent by the
 435  * VSC. This message must be sent by the VSP before the VSP uses the sent
 436  * buffer.
 437  */
 438 struct nvsp_1_message_send_send_buffer_complete {
 439         u32 status;
 440 
 441         /*
 442          * The VSC gets to choose the size of the send buffer and the VSP gets
 443          * to choose the sections size of the buffer.  This was done to enable
 444          * dynamic reconfigurations when the cost of GPA-direct buffers
 445          * decreases.
 446          */
 447         u32 section_size;
 448 } __packed;
 449 
 450 /*
 451  * This message is sent by the VSC to revoke the send buffer.  After the VSP
 452  * completes this transaction, the vsp should never use the send buffer again.
 453  */
 454 struct nvsp_1_message_revoke_send_buffer {
 455         u16 id;
 456 };
 457 
 458 /*
 459  * This message is used by both the VSP and the VSC to send a RNDIS message to
 460  * the opposite channel endpoint.
 461  */
 462 struct nvsp_1_message_send_rndis_packet {
 463         /*
 464          * This field is specified by RNDIS. They assume there's two different
 465          * channels of communication. However, the Network VSP only has one.
 466          * Therefore, the channel travels with the RNDIS packet.
 467          */
 468         u32 channel_type;
 469 
 470         /*
 471          * This field is used to send part or all of the data through a send
 472          * buffer. This values specifies an index into the send buffer. If the
 473          * index is 0xFFFFFFFF, then the send buffer is not being used and all
 474          * of the data was sent through other VMBus mechanisms.
 475          */
 476         u32 send_buf_section_index;
 477         u32 send_buf_section_size;
 478 } __packed;
 479 
 480 /*
 481  * This message is used by both the VSP and the VSC to complete a RNDIS message
 482  * to the opposite channel endpoint. At this point, the initiator of this
 483  * message cannot use any resources associated with the original RNDIS packet.
 484  */
 485 struct nvsp_1_message_send_rndis_packet_complete {
 486         u32 status;
 487 };
 488 
 489 union nvsp_1_message_uber {
 490         struct nvsp_1_message_send_ndis_version send_ndis_ver;
 491 
 492         struct nvsp_1_message_send_receive_buffer send_recv_buf;
 493         struct nvsp_1_message_send_receive_buffer_complete
 494                                                 send_recv_buf_complete;
 495         struct nvsp_1_message_revoke_receive_buffer revoke_recv_buf;
 496 
 497         struct nvsp_1_message_send_send_buffer send_send_buf;
 498         struct nvsp_1_message_send_send_buffer_complete send_send_buf_complete;
 499         struct nvsp_1_message_revoke_send_buffer revoke_send_buf;
 500 
 501         struct nvsp_1_message_send_rndis_packet send_rndis_pkt;
 502         struct nvsp_1_message_send_rndis_packet_complete
 503                                                 send_rndis_pkt_complete;
 504 } __packed;
 505 
 506 
 507 /*
 508  * Network VSP protocol version 2 messages:
 509  */
 510 struct nvsp_2_vsc_capability {
 511         union {
 512                 u64 data;
 513                 struct {
 514                         u64 vmq:1;
 515                         u64 chimney:1;
 516                         u64 sriov:1;
 517                         u64 ieee8021q:1;
 518                         u64 correlation_id:1;
 519                         u64 teaming:1;
 520                         u64 vsubnetid:1;
 521                         u64 rsc:1;
 522                 };
 523         };
 524 } __packed;
 525 
 526 struct nvsp_2_send_ndis_config {
 527         u32 mtu;
 528         u32 reserved;
 529         struct nvsp_2_vsc_capability capability;
 530 } __packed;
 531 
 532 /* Allocate receive buffer */
 533 struct nvsp_2_alloc_rxbuf {
 534         /* Allocation ID to match the allocation request and response */
 535         u32 alloc_id;
 536 
 537         /* Length of the VM shared memory receive buffer that needs to
 538          * be allocated
 539          */
 540         u32 len;
 541 } __packed;
 542 
 543 /* Allocate receive buffer complete */
 544 struct nvsp_2_alloc_rxbuf_comp {
 545         /* The NDIS_STATUS code for buffer allocation */
 546         u32 status;
 547 
 548         u32 alloc_id;
 549 
 550         /* GPADL handle for the allocated receive buffer */
 551         u32 gpadl_handle;
 552 
 553         /* Receive buffer ID */
 554         u64 recv_buf_id;
 555 } __packed;
 556 
 557 struct nvsp_2_free_rxbuf {
 558         u64 recv_buf_id;
 559 } __packed;
 560 
 561 union nvsp_2_message_uber {
 562         struct nvsp_2_send_ndis_config send_ndis_config;
 563         struct nvsp_2_alloc_rxbuf alloc_rxbuf;
 564         struct nvsp_2_alloc_rxbuf_comp alloc_rxbuf_comp;
 565         struct nvsp_2_free_rxbuf free_rxbuf;
 566 } __packed;
 567 
 568 struct nvsp_4_send_vf_association {
 569         /* 1: allocated, serial number is valid. 0: not allocated */
 570         u32 allocated;
 571 
 572         /* Serial number of the VF to team with */
 573         u32 serial;
 574 } __packed;
 575 
 576 enum nvsp_vm_datapath {
 577         NVSP_DATAPATH_SYNTHETIC = 0,
 578         NVSP_DATAPATH_VF,
 579         NVSP_DATAPATH_MAX
 580 };
 581 
 582 struct nvsp_4_sw_datapath {
 583         u32 active_datapath; /* active data path in VM */
 584 } __packed;
 585 
 586 union nvsp_4_message_uber {
 587         struct nvsp_4_send_vf_association vf_assoc;
 588         struct nvsp_4_sw_datapath active_dp;
 589 } __packed;
 590 
 591 enum nvsp_subchannel_operation {
 592         NVSP_SUBCHANNEL_NONE = 0,
 593         NVSP_SUBCHANNEL_ALLOCATE,
 594         NVSP_SUBCHANNEL_MAX
 595 };
 596 
 597 struct nvsp_5_subchannel_request {
 598         u32 op;
 599         u32 num_subchannels;
 600 } __packed;
 601 
 602 struct nvsp_5_subchannel_complete {
 603         u32 status;
 604         u32 num_subchannels; /* Actual number of subchannels allocated */
 605 } __packed;
 606 
 607 struct nvsp_5_send_indirect_table {
 608         /* The number of entries in the send indirection table */
 609         u32 count;
 610 
 611         /* The offset of the send indirection table from the beginning of
 612          * struct nvsp_message.
 613          * The send indirection table tells which channel to put the send
 614          * traffic on. Each entry is a channel number.
 615          */
 616         u32 offset;
 617 } __packed;
 618 
 619 union nvsp_5_message_uber {
 620         struct nvsp_5_subchannel_request subchn_req;
 621         struct nvsp_5_subchannel_complete subchn_comp;
 622         struct nvsp_5_send_indirect_table send_table;
 623 } __packed;
 624 
 625 enum nvsp_6_pd_api_op {
 626         PD_API_OP_CONFIG = 1,
 627         PD_API_OP_SW_DATAPATH, /* Switch Datapath */
 628         PD_API_OP_OPEN_PROVIDER,
 629         PD_API_OP_CLOSE_PROVIDER,
 630         PD_API_OP_CREATE_QUEUE,
 631         PD_API_OP_FLUSH_QUEUE,
 632         PD_API_OP_FREE_QUEUE,
 633         PD_API_OP_ALLOC_COM_BUF, /* Allocate Common Buffer */
 634         PD_API_OP_FREE_COM_BUF, /* Free Common Buffer */
 635         PD_API_OP_MAX
 636 };
 637 
 638 struct grp_affinity {
 639         u64 mask;
 640         u16 grp;
 641         u16 reserved[3];
 642 } __packed;
 643 
 644 struct nvsp_6_pd_api_req {
 645         u32 op;
 646 
 647         union {
 648                 /* MMIO information is sent from the VM to VSP */
 649                 struct __packed {
 650                         u64 mmio_pa; /* MMIO Physical Address */
 651                         u32 mmio_len;
 652 
 653                         /* Number of PD queues a VM can support */
 654                         u16 num_subchn;
 655                 } config;
 656 
 657                 /* Switch Datapath */
 658                 struct __packed {
 659                         /* Host Datapath Is PacketDirect */
 660                         u8 host_dpath_is_pd;
 661 
 662                         /* Guest PacketDirect Is Enabled */
 663                         u8 guest_pd_enabled;
 664                 } sw_dpath;
 665 
 666                 /* Open Provider*/
 667                 struct __packed {
 668                         u32 prov_id; /* Provider id */
 669                         u32 flag;
 670                 } open_prov;
 671 
 672                 /* Close Provider */
 673                 struct __packed {
 674                         u32 prov_id;
 675                 } cls_prov;
 676 
 677                 /* Create Queue*/
 678                 struct __packed {
 679                         u32 prov_id;
 680                         u16 q_id;
 681                         u16 q_size;
 682                         u8 is_recv_q;
 683                         u8 is_rss_q;
 684                         u32 recv_data_len;
 685                         struct grp_affinity affy;
 686                 } cr_q;
 687 
 688                 /* Delete Queue*/
 689                 struct __packed {
 690                         u32 prov_id;
 691                         u16 q_id;
 692                 } del_q;
 693 
 694                 /* Flush Queue */
 695                 struct __packed {
 696                         u32 prov_id;
 697                         u16 q_id;
 698                 } flush_q;
 699 
 700                 /* Allocate Common Buffer */
 701                 struct __packed {
 702                         u32 len;
 703                         u32 pf_node; /* Preferred Node */
 704                         u16 region_id;
 705                 } alloc_com_buf;
 706 
 707                 /* Free Common Buffer */
 708                 struct __packed {
 709                         u32 len;
 710                         u64 pa; /* Physical Address */
 711                         u32 pf_node; /* Preferred Node */
 712                         u16 region_id;
 713                         u8 cache_type;
 714                 } free_com_buf;
 715         } __packed;
 716 } __packed;
 717 
 718 struct nvsp_6_pd_api_comp {
 719         u32 op;
 720         u32 status;
 721 
 722         union {
 723                 struct __packed {
 724                         /* actual number of PD queues allocated to the VM */
 725                         u16 num_pd_q;
 726 
 727                         /* Num Receive Rss PD Queues */
 728                         u8 num_rss_q;
 729 
 730                         u8 is_supported; /* Is supported by VSP */
 731                         u8 is_enabled; /* Is enabled by VSP */
 732                 } config;
 733 
 734                 /* Open Provider */
 735                 struct __packed {
 736                         u32 prov_id;
 737                 } open_prov;
 738 
 739                 /* Create Queue */
 740                 struct __packed {
 741                         u32 prov_id;
 742                         u16 q_id;
 743                         u16 q_size;
 744                         u32 recv_data_len;
 745                         struct grp_affinity affy;
 746                 } cr_q;
 747 
 748                 /* Allocate Common Buffer */
 749                 struct __packed {
 750                         u64 pa; /* Physical Address */
 751                         u32 len;
 752                         u32 pf_node; /* Preferred Node */
 753                         u16 region_id;
 754                         u8 cache_type;
 755                 } alloc_com_buf;
 756         } __packed;
 757 } __packed;
 758 
 759 struct nvsp_6_pd_buf {
 760         u32 region_offset;
 761         u16 region_id;
 762         u16 is_partial:1;
 763         u16 reserved:15;
 764 } __packed;
 765 
 766 struct nvsp_6_pd_batch_msg {
 767         struct nvsp_message_header hdr;
 768         u16 count;
 769         u16 guest2host:1;
 770         u16 is_recv:1;
 771         u16 reserved:14;
 772         struct nvsp_6_pd_buf pd_buf[0];
 773 } __packed;
 774 
 775 union nvsp_6_message_uber {
 776         struct nvsp_6_pd_api_req pd_req;
 777         struct nvsp_6_pd_api_comp pd_comp;
 778 } __packed;
 779 
 780 union nvsp_all_messages {
 781         union nvsp_message_init_uber init_msg;
 782         union nvsp_1_message_uber v1_msg;
 783         union nvsp_2_message_uber v2_msg;
 784         union nvsp_4_message_uber v4_msg;
 785         union nvsp_5_message_uber v5_msg;
 786         union nvsp_6_message_uber v6_msg;
 787 } __packed;
 788 
 789 /* ALL Messages */
 790 struct nvsp_message {
 791         struct nvsp_message_header hdr;
 792         union nvsp_all_messages msg;
 793 } __packed;
 794 
 795 
 796 #define NETVSC_MTU 65535
 797 #define NETVSC_MTU_MIN ETH_MIN_MTU
 798 
 799 /* Max buffer sizes allowed by a host */
 800 #define NETVSC_RECEIVE_BUFFER_SIZE              (1024 * 1024 * 31) /* 31MB */
 801 #define NETVSC_RECEIVE_BUFFER_SIZE_LEGACY       (1024 * 1024 * 15) /* 15MB */
 802 #define NETVSC_RECEIVE_BUFFER_DEFAULT           (1024 * 1024 * 16)
 803 
 804 #define NETVSC_SEND_BUFFER_SIZE                 (1024 * 1024 * 15)  /* 15MB */
 805 #define NETVSC_SEND_BUFFER_DEFAULT              (1024 * 1024)
 806 
 807 #define NETVSC_INVALID_INDEX                    -1
 808 
 809 #define NETVSC_SEND_SECTION_SIZE                6144
 810 #define NETVSC_RECV_SECTION_SIZE                1728
 811 
 812 /* Default size of TX buf: 1MB, RX buf: 16MB */
 813 #define NETVSC_MIN_TX_SECTIONS  10
 814 #define NETVSC_DEFAULT_TX       (NETVSC_SEND_BUFFER_DEFAULT \
 815                                  / NETVSC_SEND_SECTION_SIZE)
 816 #define NETVSC_MIN_RX_SECTIONS  10
 817 #define NETVSC_DEFAULT_RX       (NETVSC_RECEIVE_BUFFER_DEFAULT \
 818                                  / NETVSC_RECV_SECTION_SIZE)
 819 
 820 #define NETVSC_RECEIVE_BUFFER_ID                0xcafe
 821 #define NETVSC_SEND_BUFFER_ID                   0
 822 
 823 #define NETVSC_SUPPORTED_HW_FEATURES (NETIF_F_RXCSUM | NETIF_F_IP_CSUM | \
 824                                       NETIF_F_TSO | NETIF_F_IPV6_CSUM | \
 825                                       NETIF_F_TSO6 | NETIF_F_LRO | NETIF_F_SG)
 826 
 827 #define VRSS_SEND_TAB_SIZE 16  /* must be power of 2 */
 828 #define VRSS_CHANNEL_MAX 64
 829 #define VRSS_CHANNEL_DEFAULT 8
 830 
 831 #define RNDIS_MAX_PKT_DEFAULT 8
 832 #define RNDIS_PKT_ALIGN_DEFAULT 8
 833 
 834 struct multi_send_data {
 835         struct sk_buff *skb; /* skb containing the pkt */
 836         struct hv_netvsc_packet *pkt; /* netvsc pkt pending */
 837         u32 count; /* counter of batched packets */
 838 };
 839 
 840 struct recv_comp_data {
 841         u64 tid; /* transaction id */
 842         u32 status;
 843 };
 844 
 845 struct multi_recv_comp {
 846         struct recv_comp_data *slots;
 847         u32 first;      /* first data entry */
 848         u32 next;       /* next entry for writing */
 849 };
 850 
 851 #define NVSP_RSC_MAX 562 /* Max #RSC frags in a vmbus xfer page pkt */
 852 
 853 struct nvsc_rsc {
 854         const struct ndis_pkt_8021q_info *vlan;
 855         const struct ndis_tcp_ip_checksum_info *csum_info;
 856         u8 is_last; /* last RNDIS msg in a vmtransfer_page */
 857         u32 cnt; /* #fragments in an RSC packet */
 858         u32 pktlen; /* Full packet length */
 859         void *data[NVSP_RSC_MAX];
 860         u32 len[NVSP_RSC_MAX];
 861 };
 862 
 863 struct netvsc_stats {
 864         u64 packets;
 865         u64 bytes;
 866         u64 broadcast;
 867         u64 multicast;
 868         struct u64_stats_sync syncp;
 869 };
 870 
 871 struct netvsc_ethtool_stats {
 872         unsigned long tx_scattered;
 873         unsigned long tx_no_memory;
 874         unsigned long tx_no_space;
 875         unsigned long tx_too_big;
 876         unsigned long tx_busy;
 877         unsigned long tx_send_full;
 878         unsigned long rx_comp_busy;
 879         unsigned long rx_no_memory;
 880         unsigned long stop_queue;
 881         unsigned long wake_queue;
 882 };
 883 
 884 struct netvsc_ethtool_pcpu_stats {
 885         u64     rx_packets;
 886         u64     rx_bytes;
 887         u64     tx_packets;
 888         u64     tx_bytes;
 889         u64     vf_rx_packets;
 890         u64     vf_rx_bytes;
 891         u64     vf_tx_packets;
 892         u64     vf_tx_bytes;
 893 };
 894 
 895 struct netvsc_vf_pcpu_stats {
 896         u64     rx_packets;
 897         u64     rx_bytes;
 898         u64     tx_packets;
 899         u64     tx_bytes;
 900         struct u64_stats_sync   syncp;
 901         u32     tx_dropped;
 902 };
 903 
 904 struct netvsc_reconfig {
 905         struct list_head list;
 906         u32 event;
 907 };
 908 
 909 /* L4 hash bits for different protocols */
 910 #define HV_TCP4_L4HASH 1
 911 #define HV_TCP6_L4HASH 2
 912 #define HV_UDP4_L4HASH 4
 913 #define HV_UDP6_L4HASH 8
 914 #define HV_DEFAULT_L4HASH (HV_TCP4_L4HASH | HV_TCP6_L4HASH | HV_UDP4_L4HASH | \
 915                            HV_UDP6_L4HASH)
 916 
 917 /* The context of the netvsc device  */
 918 struct net_device_context {
 919         /* point back to our device context */
 920         struct hv_device *device_ctx;
 921         /* netvsc_device */
 922         struct netvsc_device __rcu *nvdev;
 923         /* list of netvsc net_devices */
 924         struct list_head list;
 925         /* reconfigure work */
 926         struct delayed_work dwork;
 927         /* last reconfig time */
 928         unsigned long last_reconfig;
 929         /* reconfig events */
 930         struct list_head reconfig_events;
 931         /* list protection */
 932         spinlock_t lock;
 933 
 934         u32 msg_enable; /* debug level */
 935 
 936         u32 tx_checksum_mask;
 937 
 938         u32 tx_table[VRSS_SEND_TAB_SIZE];
 939 
 940         u16 rx_table[ITAB_NUM];
 941 
 942         /* Ethtool settings */
 943         u8 duplex;
 944         u32 speed;
 945         u32 l4_hash; /* L4 hash settings */
 946         struct netvsc_ethtool_stats eth_stats;
 947 
 948         /* State to manage the associated VF interface. */
 949         struct net_device __rcu *vf_netdev;
 950         struct netvsc_vf_pcpu_stats __percpu *vf_stats;
 951         struct delayed_work vf_takeover;
 952 
 953         /* 1: allocated, serial number is valid. 0: not allocated */
 954         u32 vf_alloc;
 955         /* Serial number of the VF to team with */
 956         u32 vf_serial;
 957 };
 958 
 959 /* Per channel data */
 960 struct netvsc_channel {
 961         struct vmbus_channel *channel;
 962         struct netvsc_device *net_device;
 963         const struct vmpacket_descriptor *desc;
 964         struct napi_struct napi;
 965         struct multi_send_data msd;
 966         struct multi_recv_comp mrc;
 967         atomic_t queue_sends;
 968         struct nvsc_rsc rsc;
 969 
 970         struct netvsc_stats tx_stats;
 971         struct netvsc_stats rx_stats;
 972 };
 973 
 974 /* Per netvsc device */
 975 struct netvsc_device {
 976         u32 nvsp_version;
 977 
 978         wait_queue_head_t wait_drain;
 979         bool destroy;
 980         bool tx_disable; /* if true, do not wake up queue again */
 981 
 982         /* Receive buffer allocated by us but manages by NetVSP */
 983         void *recv_buf;
 984         u32 recv_buf_size; /* allocated bytes */
 985         u32 recv_buf_gpadl_handle;
 986         u32 recv_section_cnt;
 987         u32 recv_section_size;
 988         u32 recv_completion_cnt;
 989 
 990         /* Send buffer allocated by us */
 991         void *send_buf;
 992         u32 send_buf_gpadl_handle;
 993         u32 send_section_cnt;
 994         u32 send_section_size;
 995         unsigned long *send_section_map;
 996 
 997         /* Used for NetVSP initialization protocol */
 998         struct completion channel_init_wait;
 999         struct nvsp_message channel_init_pkt;
1000 
1001         struct nvsp_message revoke_packet;
1002 
1003         u32 max_chn;
1004         u32 num_chn;
1005 
1006         atomic_t open_chn;
1007         struct work_struct subchan_work;
1008         wait_queue_head_t subchan_open;
1009 
1010         struct rndis_device *extension;
1011 
1012         u32 max_pkt; /* max number of pkt in one send, e.g. 8 */
1013         u32 pkt_align; /* alignment bytes, e.g. 8 */
1014 
1015         struct netvsc_channel chan_table[VRSS_CHANNEL_MAX];
1016 
1017         struct rcu_head rcu;
1018 };
1019 
1020 /* NdisInitialize message */
1021 struct rndis_initialize_request {
1022         u32 req_id;
1023         u32 major_ver;
1024         u32 minor_ver;
1025         u32 max_xfer_size;
1026 };
1027 
1028 /* Response to NdisInitialize */
1029 struct rndis_initialize_complete {
1030         u32 req_id;
1031         u32 status;
1032         u32 major_ver;
1033         u32 minor_ver;
1034         u32 dev_flags;
1035         u32 medium;
1036         u32 max_pkt_per_msg;
1037         u32 max_xfer_size;
1038         u32 pkt_alignment_factor;
1039         u32 af_list_offset;
1040         u32 af_list_size;
1041 };
1042 
1043 /* Call manager devices only: Information about an address family */
1044 /* supported by the device is appended to the response to NdisInitialize. */
1045 struct rndis_co_address_family {
1046         u32 address_family;
1047         u32 major_ver;
1048         u32 minor_ver;
1049 };
1050 
1051 /* NdisHalt message */
1052 struct rndis_halt_request {
1053         u32 req_id;
1054 };
1055 
1056 /* NdisQueryRequest message */
1057 struct rndis_query_request {
1058         u32 req_id;
1059         u32 oid;
1060         u32 info_buflen;
1061         u32 info_buf_offset;
1062         u32 dev_vc_handle;
1063 };
1064 
1065 /* Response to NdisQueryRequest */
1066 struct rndis_query_complete {
1067         u32 req_id;
1068         u32 status;
1069         u32 info_buflen;
1070         u32 info_buf_offset;
1071 };
1072 
1073 /* NdisSetRequest message */
1074 struct rndis_set_request {
1075         u32 req_id;
1076         u32 oid;
1077         u32 info_buflen;
1078         u32 info_buf_offset;
1079         u32 dev_vc_handle;
1080 };
1081 
1082 /* Response to NdisSetRequest */
1083 struct rndis_set_complete {
1084         u32 req_id;
1085         u32 status;
1086 };
1087 
1088 /* NdisReset message */
1089 struct rndis_reset_request {
1090         u32 reserved;
1091 };
1092 
1093 /* Response to NdisReset */
1094 struct rndis_reset_complete {
1095         u32 status;
1096         u32 addressing_reset;
1097 };
1098 
1099 /* NdisMIndicateStatus message */
1100 struct rndis_indicate_status {
1101         u32 status;
1102         u32 status_buflen;
1103         u32 status_buf_offset;
1104 };
1105 
1106 /* Diagnostic information passed as the status buffer in */
1107 /* struct rndis_indicate_status messages signifying error conditions. */
1108 struct rndis_diagnostic_info {
1109         u32 diag_status;
1110         u32 error_offset;
1111 };
1112 
1113 /* NdisKeepAlive message */
1114 struct rndis_keepalive_request {
1115         u32 req_id;
1116 };
1117 
1118 /* Response to NdisKeepAlive */
1119 struct rndis_keepalive_complete {
1120         u32 req_id;
1121         u32 status;
1122 };
1123 
1124 /*
1125  * Data message. All Offset fields contain byte offsets from the beginning of
1126  * struct rndis_packet. All Length fields are in bytes.  VcHandle is set
1127  * to 0 for connectionless data, otherwise it contains the VC handle.
1128  */
1129 struct rndis_packet {
1130         u32 data_offset;
1131         u32 data_len;
1132         u32 oob_data_offset;
1133         u32 oob_data_len;
1134         u32 num_oob_data_elements;
1135         u32 per_pkt_info_offset;
1136         u32 per_pkt_info_len;
1137         u32 vc_handle;
1138         u32 reserved;
1139 };
1140 
1141 /* Optional Out of Band data associated with a Data message. */
1142 struct rndis_oobd {
1143         u32 size;
1144         u32 type;
1145         u32 class_info_offset;
1146 };
1147 
1148 /* Packet extension field contents associated with a Data message. */
1149 struct rndis_per_packet_info {
1150         u32 size;
1151         u32 type:31;
1152         u32 internal:1;
1153         u32 ppi_offset;
1154 };
1155 
1156 enum ndis_per_pkt_info_type {
1157         TCPIP_CHKSUM_PKTINFO,
1158         IPSEC_PKTINFO,
1159         TCP_LARGESEND_PKTINFO,
1160         CLASSIFICATION_HANDLE_PKTINFO,
1161         NDIS_RESERVED,
1162         SG_LIST_PKTINFO,
1163         IEEE_8021Q_INFO,
1164         ORIGINAL_PKTINFO,
1165         PACKET_CANCEL_ID,
1166         NBL_HASH_VALUE = PACKET_CANCEL_ID,
1167         ORIGINAL_NET_BUFLIST,
1168         CACHED_NET_BUFLIST,
1169         SHORT_PKT_PADINFO,
1170         MAX_PER_PKT_INFO
1171 };
1172 
1173 enum rndis_per_pkt_info_interal_type {
1174         RNDIS_PKTINFO_ID = 1,
1175         /* Add more members here */
1176 
1177         RNDIS_PKTINFO_MAX
1178 };
1179 
1180 #define RNDIS_PKTINFO_SUBALLOC BIT(0)
1181 #define RNDIS_PKTINFO_1ST_FRAG BIT(1)
1182 #define RNDIS_PKTINFO_LAST_FRAG BIT(2)
1183 
1184 #define RNDIS_PKTINFO_ID_V1 1
1185 
1186 struct rndis_pktinfo_id {
1187         u8 ver;
1188         u8 flag;
1189         u16 pkt_id;
1190 };
1191 
1192 struct ndis_pkt_8021q_info {
1193         union {
1194                 struct {
1195                         u32 pri:3; /* User Priority */
1196                         u32 cfi:1; /* Canonical Format ID */
1197                         u32 vlanid:12; /* VLAN ID */
1198                         u32 reserved:16;
1199                 };
1200                 u32 value;
1201         };
1202 };
1203 
1204 struct ndis_object_header {
1205         u8 type;
1206         u8 revision;
1207         u16 size;
1208 };
1209 
1210 #define NDIS_OBJECT_TYPE_DEFAULT        0x80
1211 #define NDIS_OFFLOAD_PARAMETERS_REVISION_3 3
1212 #define NDIS_OFFLOAD_PARAMETERS_REVISION_2 2
1213 #define NDIS_OFFLOAD_PARAMETERS_REVISION_1 1
1214 
1215 #define NDIS_OFFLOAD_PARAMETERS_NO_CHANGE 0
1216 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_DISABLED 1
1217 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_ENABLED  2
1218 #define NDIS_OFFLOAD_PARAMETERS_LSOV1_ENABLED  2
1219 #define NDIS_OFFLOAD_PARAMETERS_RSC_DISABLED 1
1220 #define NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED 2
1221 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_DISABLED 1
1222 #define NDIS_OFFLOAD_PARAMETERS_TX_ENABLED_RX_DISABLED 2
1223 #define NDIS_OFFLOAD_PARAMETERS_RX_ENABLED_TX_DISABLED 3
1224 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED 4
1225 
1226 #define NDIS_TCP_LARGE_SEND_OFFLOAD_V2_TYPE     1
1227 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV4        0
1228 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV6        1
1229 
1230 #define VERSION_4_OFFLOAD_SIZE                  22
1231 /*
1232  * New offload OIDs for NDIS 6
1233  */
1234 #define OID_TCP_OFFLOAD_CURRENT_CONFIG 0xFC01020B /* query only */
1235 #define OID_TCP_OFFLOAD_PARAMETERS 0xFC01020C           /* set only */
1236 #define OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020D/* query only */
1237 #define OID_TCP_CONNECTION_OFFLOAD_CURRENT_CONFIG 0xFC01020E /* query only */
1238 #define OID_TCP_CONNECTION_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020F /* query */
1239 #define OID_OFFLOAD_ENCAPSULATION 0x0101010A /* set/query */
1240 
1241 /*
1242  * OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES
1243  * ndis_type: NDIS_OBJTYPE_OFFLOAD
1244  */
1245 
1246 #define NDIS_OFFLOAD_ENCAP_NONE         0x0000
1247 #define NDIS_OFFLOAD_ENCAP_NULL         0x0001
1248 #define NDIS_OFFLOAD_ENCAP_8023         0x0002
1249 #define NDIS_OFFLOAD_ENCAP_8023PQ       0x0004
1250 #define NDIS_OFFLOAD_ENCAP_8023PQ_OOB   0x0008
1251 #define NDIS_OFFLOAD_ENCAP_RFC1483      0x0010
1252 
1253 struct ndis_csum_offload {
1254         u32     ip4_txenc;
1255         u32     ip4_txcsum;
1256 #define NDIS_TXCSUM_CAP_IP4OPT          0x001
1257 #define NDIS_TXCSUM_CAP_TCP4OPT         0x004
1258 #define NDIS_TXCSUM_CAP_TCP4            0x010
1259 #define NDIS_TXCSUM_CAP_UDP4            0x040
1260 #define NDIS_TXCSUM_CAP_IP4             0x100
1261 
1262 #define NDIS_TXCSUM_ALL_TCP4    (NDIS_TXCSUM_CAP_TCP4 | NDIS_TXCSUM_CAP_TCP4OPT)
1263 
1264         u32     ip4_rxenc;
1265         u32     ip4_rxcsum;
1266 #define NDIS_RXCSUM_CAP_IP4OPT          0x001
1267 #define NDIS_RXCSUM_CAP_TCP4OPT         0x004
1268 #define NDIS_RXCSUM_CAP_TCP4            0x010
1269 #define NDIS_RXCSUM_CAP_UDP4            0x040
1270 #define NDIS_RXCSUM_CAP_IP4             0x100
1271         u32     ip6_txenc;
1272         u32     ip6_txcsum;
1273 #define NDIS_TXCSUM_CAP_IP6EXT          0x001
1274 #define NDIS_TXCSUM_CAP_TCP6OPT         0x004
1275 #define NDIS_TXCSUM_CAP_TCP6            0x010
1276 #define NDIS_TXCSUM_CAP_UDP6            0x040
1277         u32     ip6_rxenc;
1278         u32     ip6_rxcsum;
1279 #define NDIS_RXCSUM_CAP_IP6EXT          0x001
1280 #define NDIS_RXCSUM_CAP_TCP6OPT         0x004
1281 #define NDIS_RXCSUM_CAP_TCP6            0x010
1282 #define NDIS_RXCSUM_CAP_UDP6            0x040
1283 
1284 #define NDIS_TXCSUM_ALL_TCP6    (NDIS_TXCSUM_CAP_TCP6 |         \
1285                                  NDIS_TXCSUM_CAP_TCP6OPT |      \
1286                                  NDIS_TXCSUM_CAP_IP6EXT)
1287 };
1288 
1289 struct ndis_lsov1_offload {
1290         u32     encap;
1291         u32     maxsize;
1292         u32     minsegs;
1293         u32     opts;
1294 };
1295 
1296 struct ndis_ipsecv1_offload {
1297         u32     encap;
1298         u32     ah_esp;
1299         u32     xport_tun;
1300         u32     ip4_opts;
1301         u32     flags;
1302         u32     ip4_ah;
1303         u32     ip4_esp;
1304 };
1305 
1306 struct ndis_lsov2_offload {
1307         u32     ip4_encap;
1308         u32     ip4_maxsz;
1309         u32     ip4_minsg;
1310         u32     ip6_encap;
1311         u32     ip6_maxsz;
1312         u32     ip6_minsg;
1313         u32     ip6_opts;
1314 #define NDIS_LSOV2_CAP_IP6EXT           0x001
1315 #define NDIS_LSOV2_CAP_TCP6OPT          0x004
1316 
1317 #define NDIS_LSOV2_CAP_IP6              (NDIS_LSOV2_CAP_IP6EXT | \
1318                                          NDIS_LSOV2_CAP_TCP6OPT)
1319 };
1320 
1321 struct ndis_ipsecv2_offload {
1322         u32     encap;
1323         u8      ip6;
1324         u8      ip4opt;
1325         u8      ip6ext;
1326         u8      ah;
1327         u8      esp;
1328         u8      ah_esp;
1329         u8      xport;
1330         u8      tun;
1331         u8      xport_tun;
1332         u8      lso;
1333         u8      extseq;
1334         u32     udp_esp;
1335         u32     auth;
1336         u32     crypto;
1337         u32     sa_caps;
1338 };
1339 
1340 struct ndis_rsc_offload {
1341         u8      ip4;
1342         u8      ip6;
1343 };
1344 
1345 struct ndis_encap_offload {
1346         u32     flags;
1347         u32     maxhdr;
1348 };
1349 
1350 struct ndis_offload {
1351         struct ndis_object_header       header;
1352         struct ndis_csum_offload        csum;
1353         struct ndis_lsov1_offload       lsov1;
1354         struct ndis_ipsecv1_offload     ipsecv1;
1355         struct ndis_lsov2_offload       lsov2;
1356         u32                             flags;
1357         /* NDIS >= 6.1 */
1358         struct ndis_ipsecv2_offload     ipsecv2;
1359         /* NDIS >= 6.30 */
1360         struct ndis_rsc_offload         rsc;
1361         struct ndis_encap_offload       encap_gre;
1362 };
1363 
1364 #define NDIS_OFFLOAD_SIZE               sizeof(struct ndis_offload)
1365 #define NDIS_OFFLOAD_SIZE_6_0           offsetof(struct ndis_offload, ipsecv2)
1366 #define NDIS_OFFLOAD_SIZE_6_1           offsetof(struct ndis_offload, rsc)
1367 
1368 struct ndis_offload_params {
1369         struct ndis_object_header header;
1370         u8 ip_v4_csum;
1371         u8 tcp_ip_v4_csum;
1372         u8 udp_ip_v4_csum;
1373         u8 tcp_ip_v6_csum;
1374         u8 udp_ip_v6_csum;
1375         u8 lso_v1;
1376         u8 ip_sec_v1;
1377         u8 lso_v2_ipv4;
1378         u8 lso_v2_ipv6;
1379         u8 tcp_connection_ip_v4;
1380         u8 tcp_connection_ip_v6;
1381         u32 flags;
1382         u8 ip_sec_v2;
1383         u8 ip_sec_v2_ip_v4;
1384         struct {
1385                 u8 rsc_ip_v4;
1386                 u8 rsc_ip_v6;
1387         };
1388         struct {
1389                 u8 encapsulated_packet_task_offload;
1390                 u8 encapsulation_types;
1391         };
1392 };
1393 
1394 struct ndis_tcp_ip_checksum_info {
1395         union {
1396                 struct {
1397                         u32 is_ipv4:1;
1398                         u32 is_ipv6:1;
1399                         u32 tcp_checksum:1;
1400                         u32 udp_checksum:1;
1401                         u32 ip_header_checksum:1;
1402                         u32 reserved:11;
1403                         u32 tcp_header_offset:10;
1404                 } transmit;
1405                 struct {
1406                         u32 tcp_checksum_failed:1;
1407                         u32 udp_checksum_failed:1;
1408                         u32 ip_checksum_failed:1;
1409                         u32 tcp_checksum_succeeded:1;
1410                         u32 udp_checksum_succeeded:1;
1411                         u32 ip_checksum_succeeded:1;
1412                         u32 loopback:1;
1413                         u32 tcp_checksum_value_invalid:1;
1414                         u32 ip_checksum_value_invalid:1;
1415                 } receive;
1416                 u32  value;
1417         };
1418 };
1419 
1420 struct ndis_tcp_lso_info {
1421         union {
1422                 struct {
1423                         u32 unused:30;
1424                         u32 type:1;
1425                         u32 reserved2:1;
1426                 } transmit;
1427                 struct {
1428                         u32 mss:20;
1429                         u32 tcp_header_offset:10;
1430                         u32 type:1;
1431                         u32 reserved2:1;
1432                 } lso_v1_transmit;
1433                 struct {
1434                         u32 tcp_payload:30;
1435                         u32 type:1;
1436                         u32 reserved2:1;
1437                 } lso_v1_transmit_complete;
1438                 struct {
1439                         u32 mss:20;
1440                         u32 tcp_header_offset:10;
1441                         u32 type:1;
1442                         u32 ip_version:1;
1443                 } lso_v2_transmit;
1444                 struct {
1445                         u32 reserved:30;
1446                         u32 type:1;
1447                         u32 reserved2:1;
1448                 } lso_v2_transmit_complete;
1449                 u32  value;
1450         };
1451 };
1452 
1453 #define NDIS_VLAN_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1454                 sizeof(struct ndis_pkt_8021q_info))
1455 
1456 #define NDIS_CSUM_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1457                 sizeof(struct ndis_tcp_ip_checksum_info))
1458 
1459 #define NDIS_LSO_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1460                 sizeof(struct ndis_tcp_lso_info))
1461 
1462 #define NDIS_HASH_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1463                 sizeof(u32))
1464 
1465 /* Total size of all PPI data */
1466 #define NDIS_ALL_PPI_SIZE (NDIS_VLAN_PPI_SIZE + NDIS_CSUM_PPI_SIZE + \
1467                            NDIS_LSO_PPI_SIZE + NDIS_HASH_PPI_SIZE)
1468 
1469 /* Format of Information buffer passed in a SetRequest for the OID */
1470 /* OID_GEN_RNDIS_CONFIG_PARAMETER. */
1471 struct rndis_config_parameter_info {
1472         u32 parameter_name_offset;
1473         u32 parameter_name_length;
1474         u32 parameter_type;
1475         u32 parameter_value_offset;
1476         u32 parameter_value_length;
1477 };
1478 
1479 /* Values for ParameterType in struct rndis_config_parameter_info */
1480 #define RNDIS_CONFIG_PARAM_TYPE_INTEGER     0
1481 #define RNDIS_CONFIG_PARAM_TYPE_STRING      2
1482 
1483 /* CONDIS Miniport messages for connection oriented devices */
1484 /* that do not implement a call manager. */
1485 
1486 /* CoNdisMiniportCreateVc message */
1487 struct rcondis_mp_create_vc {
1488         u32 req_id;
1489         u32 ndis_vc_handle;
1490 };
1491 
1492 /* Response to CoNdisMiniportCreateVc */
1493 struct rcondis_mp_create_vc_complete {
1494         u32 req_id;
1495         u32 dev_vc_handle;
1496         u32 status;
1497 };
1498 
1499 /* CoNdisMiniportDeleteVc message */
1500 struct rcondis_mp_delete_vc {
1501         u32 req_id;
1502         u32 dev_vc_handle;
1503 };
1504 
1505 /* Response to CoNdisMiniportDeleteVc */
1506 struct rcondis_mp_delete_vc_complete {
1507         u32 req_id;
1508         u32 status;
1509 };
1510 
1511 /* CoNdisMiniportQueryRequest message */
1512 struct rcondis_mp_query_request {
1513         u32 req_id;
1514         u32 request_type;
1515         u32 oid;
1516         u32 dev_vc_handle;
1517         u32 info_buflen;
1518         u32 info_buf_offset;
1519 };
1520 
1521 /* CoNdisMiniportSetRequest message */
1522 struct rcondis_mp_set_request {
1523         u32 req_id;
1524         u32 request_type;
1525         u32 oid;
1526         u32 dev_vc_handle;
1527         u32 info_buflen;
1528         u32 info_buf_offset;
1529 };
1530 
1531 /* CoNdisIndicateStatus message */
1532 struct rcondis_indicate_status {
1533         u32 ndis_vc_handle;
1534         u32 status;
1535         u32 status_buflen;
1536         u32 status_buf_offset;
1537 };
1538 
1539 /* CONDIS Call/VC parameters */
1540 struct rcondis_specific_parameters {
1541         u32 parameter_type;
1542         u32 parameter_length;
1543         u32 parameter_lffset;
1544 };
1545 
1546 struct rcondis_media_parameters {
1547         u32 flags;
1548         u32 reserved1;
1549         u32 reserved2;
1550         struct rcondis_specific_parameters media_specific;
1551 };
1552 
1553 struct rndis_flowspec {
1554         u32 token_rate;
1555         u32 token_bucket_size;
1556         u32 peak_bandwidth;
1557         u32 latency;
1558         u32 delay_variation;
1559         u32 service_type;
1560         u32 max_sdu_size;
1561         u32 minimum_policed_size;
1562 };
1563 
1564 struct rcondis_call_manager_parameters {
1565         struct rndis_flowspec transmit;
1566         struct rndis_flowspec receive;
1567         struct rcondis_specific_parameters call_mgr_specific;
1568 };
1569 
1570 /* CoNdisMiniportActivateVc message */
1571 struct rcondis_mp_activate_vc_request {
1572         u32 req_id;
1573         u32 flags;
1574         u32 dev_vc_handle;
1575         u32 media_params_offset;
1576         u32 media_params_length;
1577         u32 call_mgr_params_offset;
1578         u32 call_mgr_params_length;
1579 };
1580 
1581 /* Response to CoNdisMiniportActivateVc */
1582 struct rcondis_mp_activate_vc_complete {
1583         u32 req_id;
1584         u32 status;
1585 };
1586 
1587 /* CoNdisMiniportDeactivateVc message */
1588 struct rcondis_mp_deactivate_vc_request {
1589         u32 req_id;
1590         u32 flags;
1591         u32 dev_vc_handle;
1592 };
1593 
1594 /* Response to CoNdisMiniportDeactivateVc */
1595 struct rcondis_mp_deactivate_vc_complete {
1596         u32 req_id;
1597         u32 status;
1598 };
1599 
1600 
1601 /* union with all of the RNDIS messages */
1602 union rndis_message_container {
1603         struct rndis_packet pkt;
1604         struct rndis_initialize_request init_req;
1605         struct rndis_halt_request halt_req;
1606         struct rndis_query_request query_req;
1607         struct rndis_set_request set_req;
1608         struct rndis_reset_request reset_req;
1609         struct rndis_keepalive_request keep_alive_req;
1610         struct rndis_indicate_status indicate_status;
1611         struct rndis_initialize_complete init_complete;
1612         struct rndis_query_complete query_complete;
1613         struct rndis_set_complete set_complete;
1614         struct rndis_reset_complete reset_complete;
1615         struct rndis_keepalive_complete keep_alive_complete;
1616         struct rcondis_mp_create_vc co_miniport_create_vc;
1617         struct rcondis_mp_delete_vc co_miniport_delete_vc;
1618         struct rcondis_indicate_status co_indicate_status;
1619         struct rcondis_mp_activate_vc_request co_miniport_activate_vc;
1620         struct rcondis_mp_deactivate_vc_request co_miniport_deactivate_vc;
1621         struct rcondis_mp_create_vc_complete co_miniport_create_vc_complete;
1622         struct rcondis_mp_delete_vc_complete co_miniport_delete_vc_complete;
1623         struct rcondis_mp_activate_vc_complete co_miniport_activate_vc_complete;
1624         struct rcondis_mp_deactivate_vc_complete
1625                 co_miniport_deactivate_vc_complete;
1626 };
1627 
1628 /* Remote NDIS message format */
1629 struct rndis_message {
1630         u32 ndis_msg_type;
1631 
1632         /* Total length of this message, from the beginning */
1633         /* of the struct rndis_message, in bytes. */
1634         u32 msg_len;
1635 
1636         /* Actual message */
1637         union rndis_message_container msg;
1638 };
1639 
1640 
1641 /* Handy macros */
1642 
1643 /* get the size of an RNDIS message. Pass in the message type, */
1644 /* struct rndis_set_request, struct rndis_packet for example */
1645 #define RNDIS_MESSAGE_SIZE(msg)                         \
1646         (sizeof(msg) + (sizeof(struct rndis_message) -  \
1647          sizeof(union rndis_message_container)))
1648 
1649 #define RNDIS_HEADER_SIZE       (sizeof(struct rndis_message) - \
1650                                  sizeof(union rndis_message_container))
1651 
1652 #define RNDIS_AND_PPI_SIZE (sizeof(struct rndis_message) + NDIS_ALL_PPI_SIZE)
1653 
1654 #define NDIS_PACKET_TYPE_DIRECTED       0x00000001
1655 #define NDIS_PACKET_TYPE_MULTICAST      0x00000002
1656 #define NDIS_PACKET_TYPE_ALL_MULTICAST  0x00000004
1657 #define NDIS_PACKET_TYPE_BROADCAST      0x00000008
1658 #define NDIS_PACKET_TYPE_SOURCE_ROUTING 0x00000010
1659 #define NDIS_PACKET_TYPE_PROMISCUOUS    0x00000020
1660 #define NDIS_PACKET_TYPE_SMT            0x00000040
1661 #define NDIS_PACKET_TYPE_ALL_LOCAL      0x00000080
1662 #define NDIS_PACKET_TYPE_GROUP          0x00000100
1663 #define NDIS_PACKET_TYPE_ALL_FUNCTIONAL 0x00000200
1664 #define NDIS_PACKET_TYPE_FUNCTIONAL     0x00000400
1665 #define NDIS_PACKET_TYPE_MAC_FRAME      0x00000800
1666 
1667 #define TRANSPORT_INFO_NOT_IP   0
1668 #define TRANSPORT_INFO_IPV4_TCP 0x01
1669 #define TRANSPORT_INFO_IPV4_UDP 0x02
1670 #define TRANSPORT_INFO_IPV6_TCP 0x10
1671 #define TRANSPORT_INFO_IPV6_UDP 0x20
1672 
1673 #endif /* _HYPERV_NET_H */
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root/drivers/net/hyperv/hyperv_net.h

INCLUDED FROM
