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