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 struct ndis_tcp_ip_checksum_info { 109 union { 110 struct { 111 u32 is_ipv4:1; 112 u32 is_ipv6:1; 113 u32 tcp_checksum:1; 114 u32 udp_checksum:1; 115 u32 ip_header_checksum:1; 116 u32 reserved:11; 117 u32 tcp_header_offset:10; 118 } transmit; 119 struct { 120 u32 tcp_checksum_failed:1; 121 u32 udp_checksum_failed:1; 122 u32 ip_checksum_failed:1; 123 u32 tcp_checksum_succeeded:1; 124 u32 udp_checksum_succeeded:1; 125 u32 ip_checksum_succeeded:1; 126 u32 loopback:1; 127 u32 tcp_checksum_value_invalid:1; 128 u32 ip_checksum_value_invalid:1; 129 } receive; 130 u32 value; 131 }; 132 }; 133 134 struct ndis_pkt_8021q_info { 135 union { 136 struct { 137 u32 pri:3; /* User Priority */ 138 u32 cfi:1; /* Canonical Format ID */ 139 u32 vlanid:12; /* VLAN ID */ 140 u32 reserved:16; 141 }; 142 u32 value; 143 }; 144 }; 145 146 /* 147 * Represent netvsc packet which contains 1 RNDIS and 1 ethernet frame 148 * within the RNDIS 149 * 150 * The size of this structure is less than 48 bytes and we can now 151 * place this structure in the skb->cb field. 152 */ 153 struct hv_netvsc_packet { 154 /* Bookkeeping stuff */ 155 u8 cp_partial; /* partial copy into send buffer */ 156 157 u8 rmsg_size; /* RNDIS header and PPI size */ 158 u8 rmsg_pgcnt; /* page count of RNDIS header and PPI */ 159 u8 page_buf_cnt; 160 161 u16 q_idx; 162 u16 total_packets; 163 164 u32 total_bytes; 165 u32 send_buf_index; 166 u32 total_data_buflen; 167 }; 168 169 #define NETVSC_HASH_KEYLEN 40 170 171 struct netvsc_device_info { 172 unsigned char mac_adr[ETH_ALEN]; 173 u32 num_chn; 174 u32 send_sections; 175 u32 recv_sections; 176 u32 send_section_size; 177 u32 recv_section_size; 178 179 struct bpf_prog *bprog; 180 181 u8 rss_key[NETVSC_HASH_KEYLEN]; 182 }; 183 184 enum rndis_device_state { 185 RNDIS_DEV_UNINITIALIZED = 0, 186 RNDIS_DEV_INITIALIZING, 187 RNDIS_DEV_INITIALIZED, 188 RNDIS_DEV_DATAINITIALIZED, 189 }; 190 191 struct rndis_device { 192 struct net_device *ndev; 193 194 enum rndis_device_state state; 195 196 atomic_t new_req_id; 197 198 spinlock_t request_lock; 199 struct list_head req_list; 200 201 struct work_struct mcast_work; 202 u32 filter; 203 204 bool link_state; /* 0 - link up, 1 - link down */ 205 206 u8 hw_mac_adr[ETH_ALEN]; 207 u8 rss_key[NETVSC_HASH_KEYLEN]; 208 }; 209 210 211 /* Interface */ 212 struct rndis_message; 213 struct ndis_offload_params; 214 struct netvsc_device; 215 struct netvsc_channel; 216 struct net_device_context; 217 218 extern u32 netvsc_ring_bytes; 219 220 struct netvsc_device *netvsc_device_add(struct hv_device *device, 221 const struct netvsc_device_info *info); 222 int netvsc_alloc_recv_comp_ring(struct netvsc_device *net_device, u32 q_idx); 223 void netvsc_device_remove(struct hv_device *device); 224 int netvsc_send(struct net_device *net, 225 struct hv_netvsc_packet *packet, 226 struct rndis_message *rndis_msg, 227 struct hv_page_buffer *page_buffer, 228 struct sk_buff *skb, 229 bool xdp_tx); 230 void netvsc_linkstatus_callback(struct net_device *net, 231 struct rndis_message *resp, 232 void *data, u32 data_buflen); 233 int netvsc_recv_callback(struct net_device *net, 234 struct netvsc_device *nvdev, 235 struct netvsc_channel *nvchan); 236 void netvsc_channel_cb(void *context); 237 int netvsc_poll(struct napi_struct *napi, int budget); 238 239 u32 netvsc_run_xdp(struct net_device *ndev, struct netvsc_channel *nvchan, 240 struct xdp_buff *xdp); 241 unsigned int netvsc_xdp_fraglen(unsigned int len); 242 struct bpf_prog *netvsc_xdp_get(struct netvsc_device *nvdev); 243 int netvsc_xdp_set(struct net_device *dev, struct bpf_prog *prog, 244 struct netlink_ext_ack *extack, 245 struct netvsc_device *nvdev); 246 int netvsc_vf_setxdp(struct net_device *vf_netdev, struct bpf_prog *prog); 247 int netvsc_bpf(struct net_device *dev, struct netdev_bpf *bpf); 248 249 int rndis_set_subchannel(struct net_device *ndev, 250 struct netvsc_device *nvdev, 251 struct netvsc_device_info *dev_info); 252 int rndis_filter_open(struct netvsc_device *nvdev); 253 int rndis_filter_close(struct netvsc_device *nvdev); 254 struct netvsc_device *rndis_filter_device_add(struct hv_device *dev, 255 struct netvsc_device_info *info); 256 void rndis_filter_update(struct netvsc_device *nvdev); 257 void rndis_filter_device_remove(struct hv_device *dev, 258 struct netvsc_device *nvdev); 259 int rndis_filter_set_rss_param(struct rndis_device *rdev, 260 const u8 *key); 261 int rndis_filter_set_offload_params(struct net_device *ndev, 262 struct netvsc_device *nvdev, 263 struct ndis_offload_params *req_offloads); 264 int rndis_filter_receive(struct net_device *ndev, 265 struct netvsc_device *net_dev, 266 struct netvsc_channel *nvchan, 267 void *data, u32 buflen); 268 269 int rndis_filter_set_device_mac(struct netvsc_device *ndev, 270 const char *mac); 271 272 int netvsc_switch_datapath(struct net_device *nv_dev, bool vf); 273 274 #define NVSP_INVALID_PROTOCOL_VERSION ((u32)0xFFFFFFFF) 275 276 #define NVSP_PROTOCOL_VERSION_1 2 277 #define NVSP_PROTOCOL_VERSION_2 0x30002 278 #define NVSP_PROTOCOL_VERSION_4 0x40000 279 #define NVSP_PROTOCOL_VERSION_5 0x50000 280 #define NVSP_PROTOCOL_VERSION_6 0x60000 281 #define NVSP_PROTOCOL_VERSION_61 0x60001 282 283 enum { 284 NVSP_MSG_TYPE_NONE = 0, 285 286 /* Init Messages */ 287 NVSP_MSG_TYPE_INIT = 1, 288 NVSP_MSG_TYPE_INIT_COMPLETE = 2, 289 290 NVSP_VERSION_MSG_START = 100, 291 292 /* Version 1 Messages */ 293 NVSP_MSG1_TYPE_SEND_NDIS_VER = NVSP_VERSION_MSG_START, 294 295 NVSP_MSG1_TYPE_SEND_RECV_BUF, 296 NVSP_MSG1_TYPE_SEND_RECV_BUF_COMPLETE, 297 NVSP_MSG1_TYPE_REVOKE_RECV_BUF, 298 299 NVSP_MSG1_TYPE_SEND_SEND_BUF, 300 NVSP_MSG1_TYPE_SEND_SEND_BUF_COMPLETE, 301 NVSP_MSG1_TYPE_REVOKE_SEND_BUF, 302 303 NVSP_MSG1_TYPE_SEND_RNDIS_PKT, 304 NVSP_MSG1_TYPE_SEND_RNDIS_PKT_COMPLETE, 305 306 /* Version 2 messages */ 307 NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF, 308 NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF_COMP, 309 NVSP_MSG2_TYPE_REVOKE_CHIMNEY_DELEGATED_BUF, 310 311 NVSP_MSG2_TYPE_RESUME_CHIMNEY_RX_INDICATION, 312 313 NVSP_MSG2_TYPE_TERMINATE_CHIMNEY, 314 NVSP_MSG2_TYPE_TERMINATE_CHIMNEY_COMP, 315 316 NVSP_MSG2_TYPE_INDICATE_CHIMNEY_EVENT, 317 318 NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT, 319 NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT_COMP, 320 321 NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ, 322 NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ_COMP, 323 324 NVSP_MSG2_TYPE_ALLOC_RXBUF, 325 NVSP_MSG2_TYPE_ALLOC_RXBUF_COMP, 326 327 NVSP_MSG2_TYPE_FREE_RXBUF, 328 329 NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT, 330 NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT_COMP, 331 332 NVSP_MSG2_TYPE_SEND_NDIS_CONFIG, 333 334 NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE, 335 NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP, 336 337 NVSP_MSG2_MAX = NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP, 338 339 /* Version 4 messages */ 340 NVSP_MSG4_TYPE_SEND_VF_ASSOCIATION, 341 NVSP_MSG4_TYPE_SWITCH_DATA_PATH, 342 NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED, 343 344 NVSP_MSG4_MAX = NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED, 345 346 /* Version 5 messages */ 347 NVSP_MSG5_TYPE_OID_QUERY_EX, 348 NVSP_MSG5_TYPE_OID_QUERY_EX_COMP, 349 NVSP_MSG5_TYPE_SUBCHANNEL, 350 NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE, 351 352 NVSP_MSG5_MAX = NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE, 353 354 /* Version 6 messages */ 355 NVSP_MSG6_TYPE_PD_API, 356 NVSP_MSG6_TYPE_PD_POST_BATCH, 357 358 NVSP_MSG6_MAX = NVSP_MSG6_TYPE_PD_POST_BATCH 359 }; 360 361 enum { 362 NVSP_STAT_NONE = 0, 363 NVSP_STAT_SUCCESS, 364 NVSP_STAT_FAIL, 365 NVSP_STAT_PROTOCOL_TOO_NEW, 366 NVSP_STAT_PROTOCOL_TOO_OLD, 367 NVSP_STAT_INVALID_RNDIS_PKT, 368 NVSP_STAT_BUSY, 369 NVSP_STAT_PROTOCOL_UNSUPPORTED, 370 NVSP_STAT_MAX, 371 }; 372 373 struct nvsp_message_header { 374 u32 msg_type; 375 }; 376 377 /* Init Messages */ 378 379 /* 380 * This message is used by the VSC to initialize the channel after the channels 381 * has been opened. This message should never include anything other then 382 * versioning (i.e. this message will be the same for ever). 383 */ 384 struct nvsp_message_init { 385 u32 min_protocol_ver; 386 u32 max_protocol_ver; 387 } __packed; 388 389 /* 390 * This message is used by the VSP to complete the initialization of the 391 * channel. This message should never include anything other then versioning 392 * (i.e. this message will be the same for ever). 393 */ 394 struct nvsp_message_init_complete { 395 u32 negotiated_protocol_ver; 396 u32 max_mdl_chain_len; 397 u32 status; 398 } __packed; 399 400 union nvsp_message_init_uber { 401 struct nvsp_message_init init; 402 struct nvsp_message_init_complete init_complete; 403 } __packed; 404 405 /* Version 1 Messages */ 406 407 /* 408 * This message is used by the VSC to send the NDIS version to the VSP. The VSP 409 * can use this information when handling OIDs sent by the VSC. 410 */ 411 struct nvsp_1_message_send_ndis_version { 412 u32 ndis_major_ver; 413 u32 ndis_minor_ver; 414 } __packed; 415 416 /* 417 * This message is used by the VSC to send a receive buffer to the VSP. The VSP 418 * can then use the receive buffer to send data to the VSC. 419 */ 420 struct nvsp_1_message_send_receive_buffer { 421 u32 gpadl_handle; 422 u16 id; 423 } __packed; 424 425 struct nvsp_1_receive_buffer_section { 426 u32 offset; 427 u32 sub_alloc_size; 428 u32 num_sub_allocs; 429 u32 end_offset; 430 } __packed; 431 432 /* 433 * This message is used by the VSP to acknowledge a receive buffer send by the 434 * VSC. This message must be sent by the VSP before the VSP uses the receive 435 * buffer. 436 */ 437 struct nvsp_1_message_send_receive_buffer_complete { 438 u32 status; 439 u32 num_sections; 440 441 /* 442 * The receive buffer is split into two parts, a large suballocation 443 * section and a small suballocation section. These sections are then 444 * suballocated by a certain size. 445 */ 446 447 /* 448 * For example, the following break up of the receive buffer has 6 449 * large suballocations and 10 small suballocations. 450 */ 451 452 /* 453 * | Large Section | | Small Section | 454 * ------------------------------------------------------------ 455 * | | | | | | | | | | | | | | | | | | 456 * | | 457 * LargeOffset SmallOffset 458 */ 459 460 struct nvsp_1_receive_buffer_section sections[1]; 461 } __packed; 462 463 /* 464 * This message is sent by the VSC to revoke the receive buffer. After the VSP 465 * completes this transaction, the vsp should never use the receive buffer 466 * again. 467 */ 468 struct nvsp_1_message_revoke_receive_buffer { 469 u16 id; 470 }; 471 472 /* 473 * This message is used by the VSC to send a send buffer to the VSP. The VSC 474 * can then use the send buffer to send data to the VSP. 475 */ 476 struct nvsp_1_message_send_send_buffer { 477 u32 gpadl_handle; 478 u16 id; 479 } __packed; 480 481 /* 482 * This message is used by the VSP to acknowledge a send buffer sent by the 483 * VSC. This message must be sent by the VSP before the VSP uses the sent 484 * buffer. 485 */ 486 struct nvsp_1_message_send_send_buffer_complete { 487 u32 status; 488 489 /* 490 * The VSC gets to choose the size of the send buffer and the VSP gets 491 * to choose the sections size of the buffer. This was done to enable 492 * dynamic reconfigurations when the cost of GPA-direct buffers 493 * decreases. 494 */ 495 u32 section_size; 496 } __packed; 497 498 /* 499 * This message is sent by the VSC to revoke the send buffer. After the VSP 500 * completes this transaction, the vsp should never use the send buffer again. 501 */ 502 struct nvsp_1_message_revoke_send_buffer { 503 u16 id; 504 }; 505 506 /* 507 * This message is used by both the VSP and the VSC to send a RNDIS message to 508 * the opposite channel endpoint. 509 */ 510 struct nvsp_1_message_send_rndis_packet { 511 /* 512 * This field is specified by RNDIS. They assume there's two different 513 * channels of communication. However, the Network VSP only has one. 514 * Therefore, the channel travels with the RNDIS packet. 515 */ 516 u32 channel_type; 517 518 /* 519 * This field is used to send part or all of the data through a send 520 * buffer. This values specifies an index into the send buffer. If the 521 * index is 0xFFFFFFFF, then the send buffer is not being used and all 522 * of the data was sent through other VMBus mechanisms. 523 */ 524 u32 send_buf_section_index; 525 u32 send_buf_section_size; 526 } __packed; 527 528 /* 529 * This message is used by both the VSP and the VSC to complete a RNDIS message 530 * to the opposite channel endpoint. At this point, the initiator of this 531 * message cannot use any resources associated with the original RNDIS packet. 532 */ 533 struct nvsp_1_message_send_rndis_packet_complete { 534 u32 status; 535 }; 536 537 union nvsp_1_message_uber { 538 struct nvsp_1_message_send_ndis_version send_ndis_ver; 539 540 struct nvsp_1_message_send_receive_buffer send_recv_buf; 541 struct nvsp_1_message_send_receive_buffer_complete 542 send_recv_buf_complete; 543 struct nvsp_1_message_revoke_receive_buffer revoke_recv_buf; 544 545 struct nvsp_1_message_send_send_buffer send_send_buf; 546 struct nvsp_1_message_send_send_buffer_complete send_send_buf_complete; 547 struct nvsp_1_message_revoke_send_buffer revoke_send_buf; 548 549 struct nvsp_1_message_send_rndis_packet send_rndis_pkt; 550 struct nvsp_1_message_send_rndis_packet_complete 551 send_rndis_pkt_complete; 552 } __packed; 553 554 555 /* 556 * Network VSP protocol version 2 messages: 557 */ 558 struct nvsp_2_vsc_capability { 559 union { 560 u64 data; 561 struct { 562 u64 vmq:1; 563 u64 chimney:1; 564 u64 sriov:1; 565 u64 ieee8021q:1; 566 u64 correlation_id:1; 567 u64 teaming:1; 568 u64 vsubnetid:1; 569 u64 rsc:1; 570 }; 571 }; 572 } __packed; 573 574 struct nvsp_2_send_ndis_config { 575 u32 mtu; 576 u32 reserved; 577 struct nvsp_2_vsc_capability capability; 578 } __packed; 579 580 /* Allocate receive buffer */ 581 struct nvsp_2_alloc_rxbuf { 582 /* Allocation ID to match the allocation request and response */ 583 u32 alloc_id; 584 585 /* Length of the VM shared memory receive buffer that needs to 586 * be allocated 587 */ 588 u32 len; 589 } __packed; 590 591 /* Allocate receive buffer complete */ 592 struct nvsp_2_alloc_rxbuf_comp { 593 /* The NDIS_STATUS code for buffer allocation */ 594 u32 status; 595 596 u32 alloc_id; 597 598 /* GPADL handle for the allocated receive buffer */ 599 u32 gpadl_handle; 600 601 /* Receive buffer ID */ 602 u64 recv_buf_id; 603 } __packed; 604 605 struct nvsp_2_free_rxbuf { 606 u64 recv_buf_id; 607 } __packed; 608 609 union nvsp_2_message_uber { 610 struct nvsp_2_send_ndis_config send_ndis_config; 611 struct nvsp_2_alloc_rxbuf alloc_rxbuf; 612 struct nvsp_2_alloc_rxbuf_comp alloc_rxbuf_comp; 613 struct nvsp_2_free_rxbuf free_rxbuf; 614 } __packed; 615 616 struct nvsp_4_send_vf_association { 617 /* 1: allocated, serial number is valid. 0: not allocated */ 618 u32 allocated; 619 620 /* Serial number of the VF to team with */ 621 u32 serial; 622 } __packed; 623 624 enum nvsp_vm_datapath { 625 NVSP_DATAPATH_SYNTHETIC = 0, 626 NVSP_DATAPATH_VF, 627 NVSP_DATAPATH_MAX 628 }; 629 630 struct nvsp_4_sw_datapath { 631 u32 active_datapath; /* active data path in VM */ 632 } __packed; 633 634 union nvsp_4_message_uber { 635 struct nvsp_4_send_vf_association vf_assoc; 636 struct nvsp_4_sw_datapath active_dp; 637 } __packed; 638 639 enum nvsp_subchannel_operation { 640 NVSP_SUBCHANNEL_NONE = 0, 641 NVSP_SUBCHANNEL_ALLOCATE, 642 NVSP_SUBCHANNEL_MAX 643 }; 644 645 struct nvsp_5_subchannel_request { 646 u32 op; 647 u32 num_subchannels; 648 } __packed; 649 650 struct nvsp_5_subchannel_complete { 651 u32 status; 652 u32 num_subchannels; /* Actual number of subchannels allocated */ 653 } __packed; 654 655 struct nvsp_5_send_indirect_table { 656 /* The number of entries in the send indirection table */ 657 u32 count; 658 659 /* The offset of the send indirection table from the beginning of 660 * struct nvsp_message. 661 * The send indirection table tells which channel to put the send 662 * traffic on. Each entry is a channel number. 663 */ 664 u32 offset; 665 } __packed; 666 667 union nvsp_5_message_uber { 668 struct nvsp_5_subchannel_request subchn_req; 669 struct nvsp_5_subchannel_complete subchn_comp; 670 struct nvsp_5_send_indirect_table send_table; 671 } __packed; 672 673 enum nvsp_6_pd_api_op { 674 PD_API_OP_CONFIG = 1, 675 PD_API_OP_SW_DATAPATH, /* Switch Datapath */ 676 PD_API_OP_OPEN_PROVIDER, 677 PD_API_OP_CLOSE_PROVIDER, 678 PD_API_OP_CREATE_QUEUE, 679 PD_API_OP_FLUSH_QUEUE, 680 PD_API_OP_FREE_QUEUE, 681 PD_API_OP_ALLOC_COM_BUF, /* Allocate Common Buffer */ 682 PD_API_OP_FREE_COM_BUF, /* Free Common Buffer */ 683 PD_API_OP_MAX 684 }; 685 686 struct grp_affinity { 687 u64 mask; 688 u16 grp; 689 u16 reserved[3]; 690 } __packed; 691 692 struct nvsp_6_pd_api_req { 693 u32 op; 694 695 union { 696 /* MMIO information is sent from the VM to VSP */ 697 struct __packed { 698 u64 mmio_pa; /* MMIO Physical Address */ 699 u32 mmio_len; 700 701 /* Number of PD queues a VM can support */ 702 u16 num_subchn; 703 } config; 704 705 /* Switch Datapath */ 706 struct __packed { 707 /* Host Datapath Is PacketDirect */ 708 u8 host_dpath_is_pd; 709 710 /* Guest PacketDirect Is Enabled */ 711 u8 guest_pd_enabled; 712 } sw_dpath; 713 714 /* Open Provider*/ 715 struct __packed { 716 u32 prov_id; /* Provider id */ 717 u32 flag; 718 } open_prov; 719 720 /* Close Provider */ 721 struct __packed { 722 u32 prov_id; 723 } cls_prov; 724 725 /* Create Queue*/ 726 struct __packed { 727 u32 prov_id; 728 u16 q_id; 729 u16 q_size; 730 u8 is_recv_q; 731 u8 is_rss_q; 732 u32 recv_data_len; 733 struct grp_affinity affy; 734 } cr_q; 735 736 /* Delete Queue*/ 737 struct __packed { 738 u32 prov_id; 739 u16 q_id; 740 } del_q; 741 742 /* Flush Queue */ 743 struct __packed { 744 u32 prov_id; 745 u16 q_id; 746 } flush_q; 747 748 /* Allocate Common Buffer */ 749 struct __packed { 750 u32 len; 751 u32 pf_node; /* Preferred Node */ 752 u16 region_id; 753 } alloc_com_buf; 754 755 /* Free Common Buffer */ 756 struct __packed { 757 u32 len; 758 u64 pa; /* Physical Address */ 759 u32 pf_node; /* Preferred Node */ 760 u16 region_id; 761 u8 cache_type; 762 } free_com_buf; 763 } __packed; 764 } __packed; 765 766 struct nvsp_6_pd_api_comp { 767 u32 op; 768 u32 status; 769 770 union { 771 struct __packed { 772 /* actual number of PD queues allocated to the VM */ 773 u16 num_pd_q; 774 775 /* Num Receive Rss PD Queues */ 776 u8 num_rss_q; 777 778 u8 is_supported; /* Is supported by VSP */ 779 u8 is_enabled; /* Is enabled by VSP */ 780 } config; 781 782 /* Open Provider */ 783 struct __packed { 784 u32 prov_id; 785 } open_prov; 786 787 /* Create Queue */ 788 struct __packed { 789 u32 prov_id; 790 u16 q_id; 791 u16 q_size; 792 u32 recv_data_len; 793 struct grp_affinity affy; 794 } cr_q; 795 796 /* Allocate Common Buffer */ 797 struct __packed { 798 u64 pa; /* Physical Address */ 799 u32 len; 800 u32 pf_node; /* Preferred Node */ 801 u16 region_id; 802 u8 cache_type; 803 } alloc_com_buf; 804 } __packed; 805 } __packed; 806 807 struct nvsp_6_pd_buf { 808 u32 region_offset; 809 u16 region_id; 810 u16 is_partial:1; 811 u16 reserved:15; 812 } __packed; 813 814 struct nvsp_6_pd_batch_msg { 815 struct nvsp_message_header hdr; 816 u16 count; 817 u16 guest2host:1; 818 u16 is_recv:1; 819 u16 reserved:14; 820 struct nvsp_6_pd_buf pd_buf[0]; 821 } __packed; 822 823 union nvsp_6_message_uber { 824 struct nvsp_6_pd_api_req pd_req; 825 struct nvsp_6_pd_api_comp pd_comp; 826 } __packed; 827 828 union nvsp_all_messages { 829 union nvsp_message_init_uber init_msg; 830 union nvsp_1_message_uber v1_msg; 831 union nvsp_2_message_uber v2_msg; 832 union nvsp_4_message_uber v4_msg; 833 union nvsp_5_message_uber v5_msg; 834 union nvsp_6_message_uber v6_msg; 835 } __packed; 836 837 /* ALL Messages */ 838 struct nvsp_message { 839 struct nvsp_message_header hdr; 840 union nvsp_all_messages msg; 841 } __packed; 842 843 844 #define NETVSC_MTU 65535 845 #define NETVSC_MTU_MIN ETH_MIN_MTU 846 847 /* Max buffer sizes allowed by a host */ 848 #define NETVSC_RECEIVE_BUFFER_SIZE (1024 * 1024 * 31) /* 31MB */ 849 #define NETVSC_RECEIVE_BUFFER_SIZE_LEGACY (1024 * 1024 * 15) /* 15MB */ 850 #define NETVSC_RECEIVE_BUFFER_DEFAULT (1024 * 1024 * 16) 851 852 #define NETVSC_SEND_BUFFER_SIZE (1024 * 1024 * 15) /* 15MB */ 853 #define NETVSC_SEND_BUFFER_DEFAULT (1024 * 1024) 854 855 #define NETVSC_INVALID_INDEX -1 856 857 #define NETVSC_SEND_SECTION_SIZE 6144 858 #define NETVSC_RECV_SECTION_SIZE 1728 859 860 /* Default size of TX buf: 1MB, RX buf: 16MB */ 861 #define NETVSC_MIN_TX_SECTIONS 10 862 #define NETVSC_DEFAULT_TX (NETVSC_SEND_BUFFER_DEFAULT \ 863 / NETVSC_SEND_SECTION_SIZE) 864 #define NETVSC_MIN_RX_SECTIONS 10 865 #define NETVSC_DEFAULT_RX (NETVSC_RECEIVE_BUFFER_DEFAULT \ 866 / NETVSC_RECV_SECTION_SIZE) 867 868 #define NETVSC_RECEIVE_BUFFER_ID 0xcafe 869 #define NETVSC_SEND_BUFFER_ID 0 870 871 #define NETVSC_SUPPORTED_HW_FEATURES (NETIF_F_RXCSUM | NETIF_F_IP_CSUM | \ 872 NETIF_F_TSO | NETIF_F_IPV6_CSUM | \ 873 NETIF_F_TSO6 | NETIF_F_LRO | \ 874 NETIF_F_SG | NETIF_F_RXHASH) 875 876 #define VRSS_SEND_TAB_SIZE 16 /* must be power of 2 */ 877 #define VRSS_CHANNEL_MAX 64 878 #define VRSS_CHANNEL_DEFAULT 8 879 880 #define RNDIS_MAX_PKT_DEFAULT 8 881 #define RNDIS_PKT_ALIGN_DEFAULT 8 882 883 #define NETVSC_XDP_HDRM 256 884 885 #define NETVSC_MIN_OUT_MSG_SIZE (sizeof(struct vmpacket_descriptor) + \ 886 sizeof(struct nvsp_message)) 887 #define NETVSC_MIN_IN_MSG_SIZE sizeof(struct vmpacket_descriptor) 888 889 /* Estimated requestor size: 890 * out_ring_size/min_out_msg_size + in_ring_size/min_in_msg_size 891 */ 892 static inline u32 netvsc_rqstor_size(unsigned long ringbytes) 893 { 894 return ringbytes / NETVSC_MIN_OUT_MSG_SIZE + 895 ringbytes / NETVSC_MIN_IN_MSG_SIZE; 896 } 897 898 /* XFER PAGE packets can specify a maximum of 375 ranges for NDIS >= 6.0 899 * and a maximum of 64 ranges for NDIS < 6.0 with no RSC; with RSC, this 900 * limit is raised to 562 (= NVSP_RSC_MAX). 901 */ 902 #define NETVSC_MAX_XFER_PAGE_RANGES NVSP_RSC_MAX 903 #define NETVSC_XFER_HEADER_SIZE(rng_cnt) \ 904 (offsetof(struct vmtransfer_page_packet_header, ranges) + \ 905 (rng_cnt) * sizeof(struct vmtransfer_page_range)) 906 #define NETVSC_MAX_PKT_SIZE (NETVSC_XFER_HEADER_SIZE(NETVSC_MAX_XFER_PAGE_RANGES) + \ 907 sizeof(struct nvsp_message) + (sizeof(u32) * VRSS_SEND_TAB_SIZE)) 908 909 struct multi_send_data { 910 struct sk_buff *skb; /* skb containing the pkt */ 911 struct hv_netvsc_packet *pkt; /* netvsc pkt pending */ 912 u32 count; /* counter of batched packets */ 913 }; 914 915 struct recv_comp_data { 916 u64 tid; /* transaction id */ 917 u32 status; 918 }; 919 920 struct multi_recv_comp { 921 struct recv_comp_data *slots; 922 u32 first; /* first data entry */ 923 u32 next; /* next entry for writing */ 924 }; 925 926 #define NVSP_RSC_MAX 562 /* Max #RSC frags in a vmbus xfer page pkt */ 927 928 struct nvsc_rsc { 929 struct ndis_pkt_8021q_info vlan; 930 struct ndis_tcp_ip_checksum_info csum_info; 931 u32 hash_info; 932 u8 ppi_flags; /* valid/present bits for the above PPIs */ 933 u8 is_last; /* last RNDIS msg in a vmtransfer_page */ 934 u32 cnt; /* #fragments in an RSC packet */ 935 u32 pktlen; /* Full packet length */ 936 void *data[NVSP_RSC_MAX]; 937 u32 len[NVSP_RSC_MAX]; 938 }; 939 940 #define NVSC_RSC_VLAN BIT(0) /* valid/present bit for 'vlan' */ 941 #define NVSC_RSC_CSUM_INFO BIT(1) /* valid/present bit for 'csum_info' */ 942 #define NVSC_RSC_HASH_INFO BIT(2) /* valid/present bit for 'hash_info' */ 943 944 struct netvsc_stats { 945 u64 packets; 946 u64 bytes; 947 u64 broadcast; 948 u64 multicast; 949 u64 xdp_drop; 950 struct u64_stats_sync syncp; 951 }; 952 953 struct netvsc_ethtool_stats { 954 unsigned long tx_scattered; 955 unsigned long tx_no_memory; 956 unsigned long tx_no_space; 957 unsigned long tx_too_big; 958 unsigned long tx_busy; 959 unsigned long tx_send_full; 960 unsigned long rx_comp_busy; 961 unsigned long rx_no_memory; 962 unsigned long stop_queue; 963 unsigned long wake_queue; 964 unsigned long vlan_error; 965 }; 966 967 struct netvsc_ethtool_pcpu_stats { 968 u64 rx_packets; 969 u64 rx_bytes; 970 u64 tx_packets; 971 u64 tx_bytes; 972 u64 vf_rx_packets; 973 u64 vf_rx_bytes; 974 u64 vf_tx_packets; 975 u64 vf_tx_bytes; 976 }; 977 978 struct netvsc_vf_pcpu_stats { 979 u64 rx_packets; 980 u64 rx_bytes; 981 u64 tx_packets; 982 u64 tx_bytes; 983 struct u64_stats_sync syncp; 984 u32 tx_dropped; 985 }; 986 987 struct netvsc_reconfig { 988 struct list_head list; 989 u32 event; 990 }; 991 992 /* L4 hash bits for different protocols */ 993 #define HV_TCP4_L4HASH 1 994 #define HV_TCP6_L4HASH 2 995 #define HV_UDP4_L4HASH 4 996 #define HV_UDP6_L4HASH 8 997 #define HV_DEFAULT_L4HASH (HV_TCP4_L4HASH | HV_TCP6_L4HASH | HV_UDP4_L4HASH | \ 998 HV_UDP6_L4HASH) 999 1000 /* The context of the netvsc device */ 1001 struct net_device_context { 1002 /* point back to our device context */ 1003 struct hv_device *device_ctx; 1004 /* netvsc_device */ 1005 struct netvsc_device __rcu *nvdev; 1006 /* list of netvsc net_devices */ 1007 struct list_head list; 1008 /* reconfigure work */ 1009 struct delayed_work dwork; 1010 /* last reconfig time */ 1011 unsigned long last_reconfig; 1012 /* reconfig events */ 1013 struct list_head reconfig_events; 1014 /* list protection */ 1015 spinlock_t lock; 1016 1017 u32 msg_enable; /* debug level */ 1018 1019 u32 tx_checksum_mask; 1020 1021 u32 tx_table[VRSS_SEND_TAB_SIZE]; 1022 1023 u16 rx_table[ITAB_NUM]; 1024 1025 /* Ethtool settings */ 1026 u8 duplex; 1027 u32 speed; 1028 u32 l4_hash; /* L4 hash settings */ 1029 struct netvsc_ethtool_stats eth_stats; 1030 1031 /* State to manage the associated VF interface. */ 1032 struct net_device __rcu *vf_netdev; 1033 struct netvsc_vf_pcpu_stats __percpu *vf_stats; 1034 struct delayed_work vf_takeover; 1035 1036 /* 1: allocated, serial number is valid. 0: not allocated */ 1037 u32 vf_alloc; 1038 /* Serial number of the VF to team with */ 1039 u32 vf_serial; 1040 1041 /* Is the current data path through the VF NIC? */ 1042 bool data_path_is_vf; 1043 1044 /* Used to temporarily save the config info across hibernation */ 1045 struct netvsc_device_info *saved_netvsc_dev_info; 1046 }; 1047 1048 /* Per channel data */ 1049 struct netvsc_channel { 1050 struct vmbus_channel *channel; 1051 struct netvsc_device *net_device; 1052 void *recv_buf; /* buffer to copy packets out from the receive buffer */ 1053 const struct vmpacket_descriptor *desc; 1054 struct napi_struct napi; 1055 struct multi_send_data msd; 1056 struct multi_recv_comp mrc; 1057 atomic_t queue_sends; 1058 struct nvsc_rsc rsc; 1059 1060 struct bpf_prog __rcu *bpf_prog; 1061 struct xdp_rxq_info xdp_rxq; 1062 1063 struct netvsc_stats tx_stats; 1064 struct netvsc_stats rx_stats; 1065 }; 1066 1067 /* Per netvsc device */ 1068 struct netvsc_device { 1069 u32 nvsp_version; 1070 1071 wait_queue_head_t wait_drain; 1072 bool destroy; 1073 bool tx_disable; /* if true, do not wake up queue again */ 1074 1075 /* Receive buffer allocated by us but manages by NetVSP */ 1076 void *recv_buf; 1077 u32 recv_buf_size; /* allocated bytes */ 1078 u32 recv_buf_gpadl_handle; 1079 u32 recv_section_cnt; 1080 u32 recv_section_size; 1081 u32 recv_completion_cnt; 1082 1083 /* Send buffer allocated by us */ 1084 void *send_buf; 1085 u32 send_buf_gpadl_handle; 1086 u32 send_section_cnt; 1087 u32 send_section_size; 1088 unsigned long *send_section_map; 1089 1090 /* Used for NetVSP initialization protocol */ 1091 struct completion channel_init_wait; 1092 struct nvsp_message channel_init_pkt; 1093 1094 struct nvsp_message revoke_packet; 1095 1096 u32 max_chn; 1097 u32 num_chn; 1098 1099 atomic_t open_chn; 1100 struct work_struct subchan_work; 1101 wait_queue_head_t subchan_open; 1102 1103 struct rndis_device *extension; 1104 1105 u32 max_pkt; /* max number of pkt in one send, e.g. 8 */ 1106 u32 pkt_align; /* alignment bytes, e.g. 8 */ 1107 1108 struct netvsc_channel chan_table[VRSS_CHANNEL_MAX]; 1109 1110 struct rcu_head rcu; 1111 }; 1112 1113 /* NdisInitialize message */ 1114 struct rndis_initialize_request { 1115 u32 req_id; 1116 u32 major_ver; 1117 u32 minor_ver; 1118 u32 max_xfer_size; 1119 }; 1120 1121 /* Response to NdisInitialize */ 1122 struct rndis_initialize_complete { 1123 u32 req_id; 1124 u32 status; 1125 u32 major_ver; 1126 u32 minor_ver; 1127 u32 dev_flags; 1128 u32 medium; 1129 u32 max_pkt_per_msg; 1130 u32 max_xfer_size; 1131 u32 pkt_alignment_factor; 1132 u32 af_list_offset; 1133 u32 af_list_size; 1134 }; 1135 1136 /* Call manager devices only: Information about an address family */ 1137 /* supported by the device is appended to the response to NdisInitialize. */ 1138 struct rndis_co_address_family { 1139 u32 address_family; 1140 u32 major_ver; 1141 u32 minor_ver; 1142 }; 1143 1144 /* NdisHalt message */ 1145 struct rndis_halt_request { 1146 u32 req_id; 1147 }; 1148 1149 /* NdisQueryRequest message */ 1150 struct rndis_query_request { 1151 u32 req_id; 1152 u32 oid; 1153 u32 info_buflen; 1154 u32 info_buf_offset; 1155 u32 dev_vc_handle; 1156 }; 1157 1158 /* Response to NdisQueryRequest */ 1159 struct rndis_query_complete { 1160 u32 req_id; 1161 u32 status; 1162 u32 info_buflen; 1163 u32 info_buf_offset; 1164 }; 1165 1166 /* NdisSetRequest message */ 1167 struct rndis_set_request { 1168 u32 req_id; 1169 u32 oid; 1170 u32 info_buflen; 1171 u32 info_buf_offset; 1172 u32 dev_vc_handle; 1173 u8 info_buf[]; 1174 }; 1175 1176 /* Response to NdisSetRequest */ 1177 struct rndis_set_complete { 1178 u32 req_id; 1179 u32 status; 1180 }; 1181 1182 /* NdisReset message */ 1183 struct rndis_reset_request { 1184 u32 reserved; 1185 }; 1186 1187 /* Response to NdisReset */ 1188 struct rndis_reset_complete { 1189 u32 status; 1190 u32 addressing_reset; 1191 }; 1192 1193 /* NdisMIndicateStatus message */ 1194 struct rndis_indicate_status { 1195 u32 status; 1196 u32 status_buflen; 1197 u32 status_buf_offset; 1198 }; 1199 1200 /* Diagnostic information passed as the status buffer in */ 1201 /* struct rndis_indicate_status messages signifying error conditions. */ 1202 struct rndis_diagnostic_info { 1203 u32 diag_status; 1204 u32 error_offset; 1205 }; 1206 1207 /* NdisKeepAlive message */ 1208 struct rndis_keepalive_request { 1209 u32 req_id; 1210 }; 1211 1212 /* Response to NdisKeepAlive */ 1213 struct rndis_keepalive_complete { 1214 u32 req_id; 1215 u32 status; 1216 }; 1217 1218 /* 1219 * Data message. All Offset fields contain byte offsets from the beginning of 1220 * struct rndis_packet. All Length fields are in bytes. VcHandle is set 1221 * to 0 for connectionless data, otherwise it contains the VC handle. 1222 */ 1223 struct rndis_packet { 1224 u32 data_offset; 1225 u32 data_len; 1226 u32 oob_data_offset; 1227 u32 oob_data_len; 1228 u32 num_oob_data_elements; 1229 u32 per_pkt_info_offset; 1230 u32 per_pkt_info_len; 1231 u32 vc_handle; 1232 u32 reserved; 1233 }; 1234 1235 /* Optional Out of Band data associated with a Data message. */ 1236 struct rndis_oobd { 1237 u32 size; 1238 u32 type; 1239 u32 class_info_offset; 1240 }; 1241 1242 /* Packet extension field contents associated with a Data message. */ 1243 struct rndis_per_packet_info { 1244 u32 size; 1245 u32 type:31; 1246 u32 internal:1; 1247 u32 ppi_offset; 1248 }; 1249 1250 enum ndis_per_pkt_info_type { 1251 TCPIP_CHKSUM_PKTINFO, 1252 IPSEC_PKTINFO, 1253 TCP_LARGESEND_PKTINFO, 1254 CLASSIFICATION_HANDLE_PKTINFO, 1255 NDIS_RESERVED, 1256 SG_LIST_PKTINFO, 1257 IEEE_8021Q_INFO, 1258 ORIGINAL_PKTINFO, 1259 PACKET_CANCEL_ID, 1260 NBL_HASH_VALUE = PACKET_CANCEL_ID, 1261 ORIGINAL_NET_BUFLIST, 1262 CACHED_NET_BUFLIST, 1263 SHORT_PKT_PADINFO, 1264 MAX_PER_PKT_INFO 1265 }; 1266 1267 enum rndis_per_pkt_info_interal_type { 1268 RNDIS_PKTINFO_ID = 1, 1269 /* Add more members here */ 1270 1271 RNDIS_PKTINFO_MAX 1272 }; 1273 1274 #define RNDIS_PKTINFO_SUBALLOC BIT(0) 1275 #define RNDIS_PKTINFO_1ST_FRAG BIT(1) 1276 #define RNDIS_PKTINFO_LAST_FRAG BIT(2) 1277 1278 #define RNDIS_PKTINFO_ID_V1 1 1279 1280 struct rndis_pktinfo_id { 1281 u8 ver; 1282 u8 flag; 1283 u16 pkt_id; 1284 }; 1285 1286 struct ndis_object_header { 1287 u8 type; 1288 u8 revision; 1289 u16 size; 1290 }; 1291 1292 #define NDIS_OBJECT_TYPE_DEFAULT 0x80 1293 #define NDIS_OFFLOAD_PARAMETERS_REVISION_3 3 1294 #define NDIS_OFFLOAD_PARAMETERS_REVISION_2 2 1295 #define NDIS_OFFLOAD_PARAMETERS_REVISION_1 1 1296 1297 #define NDIS_OFFLOAD_PARAMETERS_NO_CHANGE 0 1298 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_DISABLED 1 1299 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_ENABLED 2 1300 #define NDIS_OFFLOAD_PARAMETERS_LSOV1_ENABLED 2 1301 #define NDIS_OFFLOAD_PARAMETERS_RSC_DISABLED 1 1302 #define NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED 2 1303 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_DISABLED 1 1304 #define NDIS_OFFLOAD_PARAMETERS_TX_ENABLED_RX_DISABLED 2 1305 #define NDIS_OFFLOAD_PARAMETERS_RX_ENABLED_TX_DISABLED 3 1306 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED 4 1307 1308 #define NDIS_TCP_LARGE_SEND_OFFLOAD_V2_TYPE 1 1309 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV4 0 1310 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV6 1 1311 1312 #define VERSION_4_OFFLOAD_SIZE 22 1313 /* 1314 * New offload OIDs for NDIS 6 1315 */ 1316 #define OID_TCP_OFFLOAD_CURRENT_CONFIG 0xFC01020B /* query only */ 1317 #define OID_TCP_OFFLOAD_PARAMETERS 0xFC01020C /* set only */ 1318 #define OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020D/* query only */ 1319 #define OID_TCP_CONNECTION_OFFLOAD_CURRENT_CONFIG 0xFC01020E /* query only */ 1320 #define OID_TCP_CONNECTION_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020F /* query */ 1321 #define OID_OFFLOAD_ENCAPSULATION 0x0101010A /* set/query */ 1322 1323 /* 1324 * OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES 1325 * ndis_type: NDIS_OBJTYPE_OFFLOAD 1326 */ 1327 1328 #define NDIS_OFFLOAD_ENCAP_NONE 0x0000 1329 #define NDIS_OFFLOAD_ENCAP_NULL 0x0001 1330 #define NDIS_OFFLOAD_ENCAP_8023 0x0002 1331 #define NDIS_OFFLOAD_ENCAP_8023PQ 0x0004 1332 #define NDIS_OFFLOAD_ENCAP_8023PQ_OOB 0x0008 1333 #define NDIS_OFFLOAD_ENCAP_RFC1483 0x0010 1334 1335 struct ndis_csum_offload { 1336 u32 ip4_txenc; 1337 u32 ip4_txcsum; 1338 #define NDIS_TXCSUM_CAP_IP4OPT 0x001 1339 #define NDIS_TXCSUM_CAP_TCP4OPT 0x004 1340 #define NDIS_TXCSUM_CAP_TCP4 0x010 1341 #define NDIS_TXCSUM_CAP_UDP4 0x040 1342 #define NDIS_TXCSUM_CAP_IP4 0x100 1343 1344 #define NDIS_TXCSUM_ALL_TCP4 (NDIS_TXCSUM_CAP_TCP4 | NDIS_TXCSUM_CAP_TCP4OPT) 1345 1346 u32 ip4_rxenc; 1347 u32 ip4_rxcsum; 1348 #define NDIS_RXCSUM_CAP_IP4OPT 0x001 1349 #define NDIS_RXCSUM_CAP_TCP4OPT 0x004 1350 #define NDIS_RXCSUM_CAP_TCP4 0x010 1351 #define NDIS_RXCSUM_CAP_UDP4 0x040 1352 #define NDIS_RXCSUM_CAP_IP4 0x100 1353 u32 ip6_txenc; 1354 u32 ip6_txcsum; 1355 #define NDIS_TXCSUM_CAP_IP6EXT 0x001 1356 #define NDIS_TXCSUM_CAP_TCP6OPT 0x004 1357 #define NDIS_TXCSUM_CAP_TCP6 0x010 1358 #define NDIS_TXCSUM_CAP_UDP6 0x040 1359 u32 ip6_rxenc; 1360 u32 ip6_rxcsum; 1361 #define NDIS_RXCSUM_CAP_IP6EXT 0x001 1362 #define NDIS_RXCSUM_CAP_TCP6OPT 0x004 1363 #define NDIS_RXCSUM_CAP_TCP6 0x010 1364 #define NDIS_RXCSUM_CAP_UDP6 0x040 1365 1366 #define NDIS_TXCSUM_ALL_TCP6 (NDIS_TXCSUM_CAP_TCP6 | \ 1367 NDIS_TXCSUM_CAP_TCP6OPT | \ 1368 NDIS_TXCSUM_CAP_IP6EXT) 1369 }; 1370 1371 struct ndis_lsov1_offload { 1372 u32 encap; 1373 u32 maxsize; 1374 u32 minsegs; 1375 u32 opts; 1376 }; 1377 1378 struct ndis_ipsecv1_offload { 1379 u32 encap; 1380 u32 ah_esp; 1381 u32 xport_tun; 1382 u32 ip4_opts; 1383 u32 flags; 1384 u32 ip4_ah; 1385 u32 ip4_esp; 1386 }; 1387 1388 struct ndis_lsov2_offload { 1389 u32 ip4_encap; 1390 u32 ip4_maxsz; 1391 u32 ip4_minsg; 1392 u32 ip6_encap; 1393 u32 ip6_maxsz; 1394 u32 ip6_minsg; 1395 u32 ip6_opts; 1396 #define NDIS_LSOV2_CAP_IP6EXT 0x001 1397 #define NDIS_LSOV2_CAP_TCP6OPT 0x004 1398 1399 #define NDIS_LSOV2_CAP_IP6 (NDIS_LSOV2_CAP_IP6EXT | \ 1400 NDIS_LSOV2_CAP_TCP6OPT) 1401 }; 1402 1403 struct ndis_ipsecv2_offload { 1404 u32 encap; 1405 u8 ip6; 1406 u8 ip4opt; 1407 u8 ip6ext; 1408 u8 ah; 1409 u8 esp; 1410 u8 ah_esp; 1411 u8 xport; 1412 u8 tun; 1413 u8 xport_tun; 1414 u8 lso; 1415 u8 extseq; 1416 u32 udp_esp; 1417 u32 auth; 1418 u32 crypto; 1419 u32 sa_caps; 1420 }; 1421 1422 struct ndis_rsc_offload { 1423 u8 ip4; 1424 u8 ip6; 1425 }; 1426 1427 struct ndis_encap_offload { 1428 u32 flags; 1429 u32 maxhdr; 1430 }; 1431 1432 struct ndis_offload { 1433 struct ndis_object_header header; 1434 struct ndis_csum_offload csum; 1435 struct ndis_lsov1_offload lsov1; 1436 struct ndis_ipsecv1_offload ipsecv1; 1437 struct ndis_lsov2_offload lsov2; 1438 u32 flags; 1439 /* NDIS >= 6.1 */ 1440 struct ndis_ipsecv2_offload ipsecv2; 1441 /* NDIS >= 6.30 */ 1442 struct ndis_rsc_offload rsc; 1443 struct ndis_encap_offload encap_gre; 1444 }; 1445 1446 #define NDIS_OFFLOAD_SIZE sizeof(struct ndis_offload) 1447 #define NDIS_OFFLOAD_SIZE_6_0 offsetof(struct ndis_offload, ipsecv2) 1448 #define NDIS_OFFLOAD_SIZE_6_1 offsetof(struct ndis_offload, rsc) 1449 1450 struct ndis_offload_params { 1451 struct ndis_object_header header; 1452 u8 ip_v4_csum; 1453 u8 tcp_ip_v4_csum; 1454 u8 udp_ip_v4_csum; 1455 u8 tcp_ip_v6_csum; 1456 u8 udp_ip_v6_csum; 1457 u8 lso_v1; 1458 u8 ip_sec_v1; 1459 u8 lso_v2_ipv4; 1460 u8 lso_v2_ipv6; 1461 u8 tcp_connection_ip_v4; 1462 u8 tcp_connection_ip_v6; 1463 u32 flags; 1464 u8 ip_sec_v2; 1465 u8 ip_sec_v2_ip_v4; 1466 struct { 1467 u8 rsc_ip_v4; 1468 u8 rsc_ip_v6; 1469 }; 1470 struct { 1471 u8 encapsulated_packet_task_offload; 1472 u8 encapsulation_types; 1473 }; 1474 }; 1475 1476 struct ndis_tcp_lso_info { 1477 union { 1478 struct { 1479 u32 unused:30; 1480 u32 type:1; 1481 u32 reserved2:1; 1482 } transmit; 1483 struct { 1484 u32 mss:20; 1485 u32 tcp_header_offset:10; 1486 u32 type:1; 1487 u32 reserved2:1; 1488 } lso_v1_transmit; 1489 struct { 1490 u32 tcp_payload:30; 1491 u32 type:1; 1492 u32 reserved2:1; 1493 } lso_v1_transmit_complete; 1494 struct { 1495 u32 mss:20; 1496 u32 tcp_header_offset:10; 1497 u32 type:1; 1498 u32 ip_version:1; 1499 } lso_v2_transmit; 1500 struct { 1501 u32 reserved:30; 1502 u32 type:1; 1503 u32 reserved2:1; 1504 } lso_v2_transmit_complete; 1505 u32 value; 1506 }; 1507 }; 1508 1509 #define NDIS_VLAN_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \ 1510 sizeof(struct ndis_pkt_8021q_info)) 1511 1512 #define NDIS_CSUM_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \ 1513 sizeof(struct ndis_tcp_ip_checksum_info)) 1514 1515 #define NDIS_LSO_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \ 1516 sizeof(struct ndis_tcp_lso_info)) 1517 1518 #define NDIS_HASH_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \ 1519 sizeof(u32)) 1520 1521 /* Total size of all PPI data */ 1522 #define NDIS_ALL_PPI_SIZE (NDIS_VLAN_PPI_SIZE + NDIS_CSUM_PPI_SIZE + \ 1523 NDIS_LSO_PPI_SIZE + NDIS_HASH_PPI_SIZE) 1524 1525 /* Format of Information buffer passed in a SetRequest for the OID */ 1526 /* OID_GEN_RNDIS_CONFIG_PARAMETER. */ 1527 struct rndis_config_parameter_info { 1528 u32 parameter_name_offset; 1529 u32 parameter_name_length; 1530 u32 parameter_type; 1531 u32 parameter_value_offset; 1532 u32 parameter_value_length; 1533 }; 1534 1535 /* Values for ParameterType in struct rndis_config_parameter_info */ 1536 #define RNDIS_CONFIG_PARAM_TYPE_INTEGER 0 1537 #define RNDIS_CONFIG_PARAM_TYPE_STRING 2 1538 1539 /* CONDIS Miniport messages for connection oriented devices */ 1540 /* that do not implement a call manager. */ 1541 1542 /* CoNdisMiniportCreateVc message */ 1543 struct rcondis_mp_create_vc { 1544 u32 req_id; 1545 u32 ndis_vc_handle; 1546 }; 1547 1548 /* Response to CoNdisMiniportCreateVc */ 1549 struct rcondis_mp_create_vc_complete { 1550 u32 req_id; 1551 u32 dev_vc_handle; 1552 u32 status; 1553 }; 1554 1555 /* CoNdisMiniportDeleteVc message */ 1556 struct rcondis_mp_delete_vc { 1557 u32 req_id; 1558 u32 dev_vc_handle; 1559 }; 1560 1561 /* Response to CoNdisMiniportDeleteVc */ 1562 struct rcondis_mp_delete_vc_complete { 1563 u32 req_id; 1564 u32 status; 1565 }; 1566 1567 /* CoNdisMiniportQueryRequest message */ 1568 struct rcondis_mp_query_request { 1569 u32 req_id; 1570 u32 request_type; 1571 u32 oid; 1572 u32 dev_vc_handle; 1573 u32 info_buflen; 1574 u32 info_buf_offset; 1575 }; 1576 1577 /* CoNdisMiniportSetRequest message */ 1578 struct rcondis_mp_set_request { 1579 u32 req_id; 1580 u32 request_type; 1581 u32 oid; 1582 u32 dev_vc_handle; 1583 u32 info_buflen; 1584 u32 info_buf_offset; 1585 }; 1586 1587 /* CoNdisIndicateStatus message */ 1588 struct rcondis_indicate_status { 1589 u32 ndis_vc_handle; 1590 u32 status; 1591 u32 status_buflen; 1592 u32 status_buf_offset; 1593 }; 1594 1595 /* CONDIS Call/VC parameters */ 1596 struct rcondis_specific_parameters { 1597 u32 parameter_type; 1598 u32 parameter_length; 1599 u32 parameter_lffset; 1600 }; 1601 1602 struct rcondis_media_parameters { 1603 u32 flags; 1604 u32 reserved1; 1605 u32 reserved2; 1606 struct rcondis_specific_parameters media_specific; 1607 }; 1608 1609 struct rndis_flowspec { 1610 u32 token_rate; 1611 u32 token_bucket_size; 1612 u32 peak_bandwidth; 1613 u32 latency; 1614 u32 delay_variation; 1615 u32 service_type; 1616 u32 max_sdu_size; 1617 u32 minimum_policed_size; 1618 }; 1619 1620 struct rcondis_call_manager_parameters { 1621 struct rndis_flowspec transmit; 1622 struct rndis_flowspec receive; 1623 struct rcondis_specific_parameters call_mgr_specific; 1624 }; 1625 1626 /* CoNdisMiniportActivateVc message */ 1627 struct rcondis_mp_activate_vc_request { 1628 u32 req_id; 1629 u32 flags; 1630 u32 dev_vc_handle; 1631 u32 media_params_offset; 1632 u32 media_params_length; 1633 u32 call_mgr_params_offset; 1634 u32 call_mgr_params_length; 1635 }; 1636 1637 /* Response to CoNdisMiniportActivateVc */ 1638 struct rcondis_mp_activate_vc_complete { 1639 u32 req_id; 1640 u32 status; 1641 }; 1642 1643 /* CoNdisMiniportDeactivateVc message */ 1644 struct rcondis_mp_deactivate_vc_request { 1645 u32 req_id; 1646 u32 flags; 1647 u32 dev_vc_handle; 1648 }; 1649 1650 /* Response to CoNdisMiniportDeactivateVc */ 1651 struct rcondis_mp_deactivate_vc_complete { 1652 u32 req_id; 1653 u32 status; 1654 }; 1655 1656 1657 /* union with all of the RNDIS messages */ 1658 union rndis_message_container { 1659 struct rndis_packet pkt; 1660 struct rndis_initialize_request init_req; 1661 struct rndis_halt_request halt_req; 1662 struct rndis_query_request query_req; 1663 struct rndis_set_request set_req; 1664 struct rndis_reset_request reset_req; 1665 struct rndis_keepalive_request keep_alive_req; 1666 struct rndis_indicate_status indicate_status; 1667 struct rndis_initialize_complete init_complete; 1668 struct rndis_query_complete query_complete; 1669 struct rndis_set_complete set_complete; 1670 struct rndis_reset_complete reset_complete; 1671 struct rndis_keepalive_complete keep_alive_complete; 1672 struct rcondis_mp_create_vc co_miniport_create_vc; 1673 struct rcondis_mp_delete_vc co_miniport_delete_vc; 1674 struct rcondis_indicate_status co_indicate_status; 1675 struct rcondis_mp_activate_vc_request co_miniport_activate_vc; 1676 struct rcondis_mp_deactivate_vc_request co_miniport_deactivate_vc; 1677 struct rcondis_mp_create_vc_complete co_miniport_create_vc_complete; 1678 struct rcondis_mp_delete_vc_complete co_miniport_delete_vc_complete; 1679 struct rcondis_mp_activate_vc_complete co_miniport_activate_vc_complete; 1680 struct rcondis_mp_deactivate_vc_complete 1681 co_miniport_deactivate_vc_complete; 1682 }; 1683 1684 /* Remote NDIS message format */ 1685 struct rndis_message { 1686 u32 ndis_msg_type; 1687 1688 /* Total length of this message, from the beginning */ 1689 /* of the struct rndis_message, in bytes. */ 1690 u32 msg_len; 1691 1692 /* Actual message */ 1693 union rndis_message_container msg; 1694 }; 1695 1696 1697 /* Handy macros */ 1698 1699 /* get the size of an RNDIS message. Pass in the message type, */ 1700 /* struct rndis_set_request, struct rndis_packet for example */ 1701 #define RNDIS_MESSAGE_SIZE(msg) \ 1702 (sizeof(msg) + (sizeof(struct rndis_message) - \ 1703 sizeof(union rndis_message_container))) 1704 1705 #define RNDIS_HEADER_SIZE (sizeof(struct rndis_message) - \ 1706 sizeof(union rndis_message_container)) 1707 1708 #define RNDIS_AND_PPI_SIZE (sizeof(struct rndis_message) + NDIS_ALL_PPI_SIZE) 1709 1710 #define NDIS_PACKET_TYPE_DIRECTED 0x00000001 1711 #define NDIS_PACKET_TYPE_MULTICAST 0x00000002 1712 #define NDIS_PACKET_TYPE_ALL_MULTICAST 0x00000004 1713 #define NDIS_PACKET_TYPE_BROADCAST 0x00000008 1714 #define NDIS_PACKET_TYPE_SOURCE_ROUTING 0x00000010 1715 #define NDIS_PACKET_TYPE_PROMISCUOUS 0x00000020 1716 #define NDIS_PACKET_TYPE_SMT 0x00000040 1717 #define NDIS_PACKET_TYPE_ALL_LOCAL 0x00000080 1718 #define NDIS_PACKET_TYPE_GROUP 0x00000100 1719 #define NDIS_PACKET_TYPE_ALL_FUNCTIONAL 0x00000200 1720 #define NDIS_PACKET_TYPE_FUNCTIONAL 0x00000400 1721 #define NDIS_PACKET_TYPE_MAC_FRAME 0x00000800 1722 1723 #define TRANSPORT_INFO_NOT_IP 0 1724 #define TRANSPORT_INFO_IPV4_TCP 0x01 1725 #define TRANSPORT_INFO_IPV4_UDP 0x02 1726 #define TRANSPORT_INFO_IPV6_TCP 0x10 1727 #define TRANSPORT_INFO_IPV6_UDP 0x20 1728 1729 #define RETRY_US_LO 5000 1730 #define RETRY_US_HI 10000 1731 #define RETRY_MAX 2000 /* >10 sec */ 1732 1733 #endif /* _HYPERV_NET_H */ 1734