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