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 #include <linux/jhash.h> 19 20 /* RSS related */ 21 #define OID_GEN_RECEIVE_SCALE_CAPABILITIES 0x00010203 /* query only */ 22 #define OID_GEN_RECEIVE_SCALE_PARAMETERS 0x00010204 /* query and set */ 23 24 #define NDIS_OBJECT_TYPE_RSS_CAPABILITIES 0x88 25 #define NDIS_OBJECT_TYPE_RSS_PARAMETERS 0x89 26 #define NDIS_OBJECT_TYPE_OFFLOAD 0xa7 27 28 #define NDIS_RECEIVE_SCALE_CAPABILITIES_REVISION_2 2 29 #define NDIS_RECEIVE_SCALE_PARAMETERS_REVISION_2 2 30 31 struct ndis_obj_header { 32 u8 type; 33 u8 rev; 34 u16 size; 35 } __packed; 36 37 /* ndis_recv_scale_cap/cap_flag */ 38 #define NDIS_RSS_CAPS_MESSAGE_SIGNALED_INTERRUPTS 0x01000000 39 #define NDIS_RSS_CAPS_CLASSIFICATION_AT_ISR 0x02000000 40 #define NDIS_RSS_CAPS_CLASSIFICATION_AT_DPC 0x04000000 41 #define NDIS_RSS_CAPS_USING_MSI_X 0x08000000 42 #define NDIS_RSS_CAPS_RSS_AVAILABLE_ON_PORTS 0x10000000 43 #define NDIS_RSS_CAPS_SUPPORTS_MSI_X 0x20000000 44 #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV4 0x00000100 45 #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV6 0x00000200 46 #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV6_EX 0x00000400 47 48 struct ndis_recv_scale_cap { /* NDIS_RECEIVE_SCALE_CAPABILITIES */ 49 struct ndis_obj_header hdr; 50 u32 cap_flag; 51 u32 num_int_msg; 52 u32 num_recv_que; 53 u16 num_indirect_tabent; 54 } __packed; 55 56 57 /* ndis_recv_scale_param flags */ 58 #define NDIS_RSS_PARAM_FLAG_BASE_CPU_UNCHANGED 0x0001 59 #define NDIS_RSS_PARAM_FLAG_HASH_INFO_UNCHANGED 0x0002 60 #define NDIS_RSS_PARAM_FLAG_ITABLE_UNCHANGED 0x0004 61 #define NDIS_RSS_PARAM_FLAG_HASH_KEY_UNCHANGED 0x0008 62 #define NDIS_RSS_PARAM_FLAG_DISABLE_RSS 0x0010 63 64 /* Hash info bits */ 65 #define NDIS_HASH_FUNC_TOEPLITZ 0x00000001 66 #define NDIS_HASH_IPV4 0x00000100 67 #define NDIS_HASH_TCP_IPV4 0x00000200 68 #define NDIS_HASH_IPV6 0x00000400 69 #define NDIS_HASH_IPV6_EX 0x00000800 70 #define NDIS_HASH_TCP_IPV6 0x00001000 71 #define NDIS_HASH_TCP_IPV6_EX 0x00002000 72 73 #define NDIS_RSS_INDIRECTION_TABLE_MAX_SIZE_REVISION_2 (128 * 4) 74 #define NDIS_RSS_HASH_SECRET_KEY_MAX_SIZE_REVISION_2 40 75 76 #define ITAB_NUM 128 77 78 struct ndis_recv_scale_param { /* NDIS_RECEIVE_SCALE_PARAMETERS */ 79 struct ndis_obj_header hdr; 80 81 /* Qualifies the rest of the information */ 82 u16 flag; 83 84 /* The base CPU number to do receive processing. not used */ 85 u16 base_cpu_number; 86 87 /* This describes the hash function and type being enabled */ 88 u32 hashinfo; 89 90 /* The size of indirection table array */ 91 u16 indirect_tabsize; 92 93 /* The offset of the indirection table from the beginning of this 94 * structure 95 */ 96 u32 indirect_taboffset; 97 98 /* The size of the hash secret key */ 99 u16 hashkey_size; 100 101 /* The offset of the secret key from the beginning of this structure */ 102 u32 hashkey_offset; 103 104 u32 processor_masks_offset; 105 u32 num_processor_masks; 106 u32 processor_masks_entry_size; 107 }; 108 109 struct ndis_tcp_ip_checksum_info { 110 union { 111 struct { 112 u32 is_ipv4:1; 113 u32 is_ipv6:1; 114 u32 tcp_checksum:1; 115 u32 udp_checksum:1; 116 u32 ip_header_checksum:1; 117 u32 reserved:11; 118 u32 tcp_header_offset:10; 119 } transmit; 120 struct { 121 u32 tcp_checksum_failed:1; 122 u32 udp_checksum_failed:1; 123 u32 ip_checksum_failed:1; 124 u32 tcp_checksum_succeeded:1; 125 u32 udp_checksum_succeeded:1; 126 u32 ip_checksum_succeeded:1; 127 u32 loopback:1; 128 u32 tcp_checksum_value_invalid:1; 129 u32 ip_checksum_value_invalid:1; 130 } receive; 131 u32 value; 132 }; 133 }; 134 135 struct ndis_pkt_8021q_info { 136 union { 137 struct { 138 u32 pri:3; /* User Priority */ 139 u32 cfi:1; /* Canonical Format ID */ 140 u32 vlanid:12; /* VLAN ID */ 141 u32 reserved:16; 142 }; 143 u32 value; 144 }; 145 }; 146 147 /* 148 * Represent netvsc packet which contains 1 RNDIS and 1 ethernet frame 149 * within the RNDIS 150 * 151 * The size of this structure is less than 48 bytes and we can now 152 * place this structure in the skb->cb field. 153 */ 154 struct hv_netvsc_packet { 155 /* Bookkeeping stuff */ 156 u8 cp_partial; /* partial copy into send buffer */ 157 158 u8 rmsg_size; /* RNDIS header and PPI size */ 159 u8 rmsg_pgcnt; /* page count of RNDIS header and PPI */ 160 u8 page_buf_cnt; 161 162 u16 q_idx; 163 u16 total_packets; 164 165 u32 total_bytes; 166 u32 send_buf_index; 167 u32 total_data_buflen; 168 struct hv_dma_range *dma_range; 169 }; 170 171 #define NETVSC_HASH_KEYLEN 40 172 173 struct netvsc_device_info { 174 unsigned char mac_adr[ETH_ALEN]; 175 u32 num_chn; 176 u32 send_sections; 177 u32 recv_sections; 178 u32 send_section_size; 179 u32 recv_section_size; 180 181 struct bpf_prog *bprog; 182 183 u8 rss_key[NETVSC_HASH_KEYLEN]; 184 }; 185 186 enum rndis_device_state { 187 RNDIS_DEV_UNINITIALIZED = 0, 188 RNDIS_DEV_INITIALIZING, 189 RNDIS_DEV_INITIALIZED, 190 RNDIS_DEV_DATAINITIALIZED, 191 }; 192 193 struct rndis_device { 194 struct net_device *ndev; 195 196 enum rndis_device_state state; 197 198 atomic_t new_req_id; 199 200 spinlock_t request_lock; 201 struct list_head req_list; 202 203 struct work_struct mcast_work; 204 u32 filter; 205 206 bool link_state; /* 0 - link up, 1 - link down */ 207 208 u8 hw_mac_adr[ETH_ALEN]; 209 u8 rss_key[NETVSC_HASH_KEYLEN]; 210 }; 211 212 213 /* Interface */ 214 struct rndis_message; 215 struct ndis_offload_params; 216 struct netvsc_device; 217 struct netvsc_channel; 218 struct net_device_context; 219 220 extern u32 netvsc_ring_bytes; 221 222 struct netvsc_device *netvsc_device_add(struct hv_device *device, 223 const struct netvsc_device_info *info); 224 int netvsc_alloc_recv_comp_ring(struct netvsc_device *net_device, u32 q_idx); 225 void netvsc_device_remove(struct hv_device *device); 226 int netvsc_send(struct net_device *net, 227 struct hv_netvsc_packet *packet, 228 struct rndis_message *rndis_msg, 229 struct hv_page_buffer *page_buffer, 230 struct sk_buff *skb, 231 bool xdp_tx); 232 void netvsc_linkstatus_callback(struct net_device *net, 233 struct rndis_message *resp, 234 void *data, u32 data_buflen); 235 int netvsc_recv_callback(struct net_device *net, 236 struct netvsc_device *nvdev, 237 struct netvsc_channel *nvchan); 238 void netvsc_channel_cb(void *context); 239 int netvsc_poll(struct napi_struct *napi, int budget); 240 241 void netvsc_xdp_xmit(struct sk_buff *skb, struct net_device *ndev); 242 u32 netvsc_run_xdp(struct net_device *ndev, struct netvsc_channel *nvchan, 243 struct xdp_buff *xdp); 244 unsigned int netvsc_xdp_fraglen(unsigned int len); 245 struct bpf_prog *netvsc_xdp_get(struct netvsc_device *nvdev); 246 int netvsc_xdp_set(struct net_device *dev, struct bpf_prog *prog, 247 struct netlink_ext_ack *extack, 248 struct netvsc_device *nvdev); 249 int netvsc_vf_setxdp(struct net_device *vf_netdev, struct bpf_prog *prog); 250 int netvsc_bpf(struct net_device *dev, struct netdev_bpf *bpf); 251 int netvsc_ndoxdp_xmit(struct net_device *ndev, int n, 252 struct xdp_frame **frames, u32 flags); 253 254 int rndis_set_subchannel(struct net_device *ndev, 255 struct netvsc_device *nvdev, 256 struct netvsc_device_info *dev_info); 257 int rndis_filter_open(struct netvsc_device *nvdev); 258 int rndis_filter_close(struct netvsc_device *nvdev); 259 struct netvsc_device *rndis_filter_device_add(struct hv_device *dev, 260 struct netvsc_device_info *info); 261 void rndis_filter_update(struct netvsc_device *nvdev); 262 void rndis_filter_device_remove(struct hv_device *dev, 263 struct netvsc_device *nvdev); 264 int rndis_filter_set_rss_param(struct rndis_device *rdev, 265 const u8 *key); 266 int rndis_filter_set_offload_params(struct net_device *ndev, 267 struct netvsc_device *nvdev, 268 struct ndis_offload_params *req_offloads); 269 int rndis_filter_receive(struct net_device *ndev, 270 struct netvsc_device *net_dev, 271 struct netvsc_channel *nvchan, 272 void *data, u32 buflen); 273 274 int rndis_filter_set_device_mac(struct netvsc_device *ndev, 275 const char *mac); 276 277 int netvsc_switch_datapath(struct net_device *nv_dev, bool vf); 278 279 #define NVSP_INVALID_PROTOCOL_VERSION ((u32)0xFFFFFFFF) 280 281 #define NVSP_PROTOCOL_VERSION_1 2 282 #define NVSP_PROTOCOL_VERSION_2 0x30002 283 #define NVSP_PROTOCOL_VERSION_4 0x40000 284 #define NVSP_PROTOCOL_VERSION_5 0x50000 285 #define NVSP_PROTOCOL_VERSION_6 0x60000 286 #define NVSP_PROTOCOL_VERSION_61 0x60001 287 288 enum { 289 NVSP_MSG_TYPE_NONE = 0, 290 291 /* Init Messages */ 292 NVSP_MSG_TYPE_INIT = 1, 293 NVSP_MSG_TYPE_INIT_COMPLETE = 2, 294 295 NVSP_VERSION_MSG_START = 100, 296 297 /* Version 1 Messages */ 298 NVSP_MSG1_TYPE_SEND_NDIS_VER = NVSP_VERSION_MSG_START, 299 300 NVSP_MSG1_TYPE_SEND_RECV_BUF, 301 NVSP_MSG1_TYPE_SEND_RECV_BUF_COMPLETE, 302 NVSP_MSG1_TYPE_REVOKE_RECV_BUF, 303 304 NVSP_MSG1_TYPE_SEND_SEND_BUF, 305 NVSP_MSG1_TYPE_SEND_SEND_BUF_COMPLETE, 306 NVSP_MSG1_TYPE_REVOKE_SEND_BUF, 307 308 NVSP_MSG1_TYPE_SEND_RNDIS_PKT, 309 NVSP_MSG1_TYPE_SEND_RNDIS_PKT_COMPLETE, 310 311 /* Version 2 messages */ 312 NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF, 313 NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF_COMP, 314 NVSP_MSG2_TYPE_REVOKE_CHIMNEY_DELEGATED_BUF, 315 316 NVSP_MSG2_TYPE_RESUME_CHIMNEY_RX_INDICATION, 317 318 NVSP_MSG2_TYPE_TERMINATE_CHIMNEY, 319 NVSP_MSG2_TYPE_TERMINATE_CHIMNEY_COMP, 320 321 NVSP_MSG2_TYPE_INDICATE_CHIMNEY_EVENT, 322 323 NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT, 324 NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT_COMP, 325 326 NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ, 327 NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ_COMP, 328 329 NVSP_MSG2_TYPE_ALLOC_RXBUF, 330 NVSP_MSG2_TYPE_ALLOC_RXBUF_COMP, 331 332 NVSP_MSG2_TYPE_FREE_RXBUF, 333 334 NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT, 335 NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT_COMP, 336 337 NVSP_MSG2_TYPE_SEND_NDIS_CONFIG, 338 339 NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE, 340 NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP, 341 342 NVSP_MSG2_MAX = NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP, 343 344 /* Version 4 messages */ 345 NVSP_MSG4_TYPE_SEND_VF_ASSOCIATION, 346 NVSP_MSG4_TYPE_SWITCH_DATA_PATH, 347 NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED, 348 349 NVSP_MSG4_MAX = NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED, 350 351 /* Version 5 messages */ 352 NVSP_MSG5_TYPE_OID_QUERY_EX, 353 NVSP_MSG5_TYPE_OID_QUERY_EX_COMP, 354 NVSP_MSG5_TYPE_SUBCHANNEL, 355 NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE, 356 357 NVSP_MSG5_MAX = NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE, 358 359 /* Version 6 messages */ 360 NVSP_MSG6_TYPE_PD_API, 361 NVSP_MSG6_TYPE_PD_POST_BATCH, 362 363 NVSP_MSG6_MAX = NVSP_MSG6_TYPE_PD_POST_BATCH 364 }; 365 366 enum { 367 NVSP_STAT_NONE = 0, 368 NVSP_STAT_SUCCESS, 369 NVSP_STAT_FAIL, 370 NVSP_STAT_PROTOCOL_TOO_NEW, 371 NVSP_STAT_PROTOCOL_TOO_OLD, 372 NVSP_STAT_INVALID_RNDIS_PKT, 373 NVSP_STAT_BUSY, 374 NVSP_STAT_PROTOCOL_UNSUPPORTED, 375 NVSP_STAT_MAX, 376 }; 377 378 struct nvsp_message_header { 379 u32 msg_type; 380 }; 381 382 /* Init Messages */ 383 384 /* 385 * This message is used by the VSC to initialize the channel after the channels 386 * has been opened. This message should never include anything other then 387 * versioning (i.e. this message will be the same for ever). 388 */ 389 struct nvsp_message_init { 390 u32 min_protocol_ver; 391 u32 max_protocol_ver; 392 } __packed; 393 394 /* 395 * This message is used by the VSP to complete the initialization of the 396 * channel. This message should never include anything other then versioning 397 * (i.e. this message will be the same for ever). 398 */ 399 struct nvsp_message_init_complete { 400 u32 negotiated_protocol_ver; 401 u32 max_mdl_chain_len; 402 u32 status; 403 } __packed; 404 405 union nvsp_message_init_uber { 406 struct nvsp_message_init init; 407 struct nvsp_message_init_complete init_complete; 408 } __packed; 409 410 /* Version 1 Messages */ 411 412 /* 413 * This message is used by the VSC to send the NDIS version to the VSP. The VSP 414 * can use this information when handling OIDs sent by the VSC. 415 */ 416 struct nvsp_1_message_send_ndis_version { 417 u32 ndis_major_ver; 418 u32 ndis_minor_ver; 419 } __packed; 420 421 /* 422 * This message is used by the VSC to send a receive buffer to the VSP. The VSP 423 * can then use the receive buffer to send data to the VSC. 424 */ 425 struct nvsp_1_message_send_receive_buffer { 426 u32 gpadl_handle; 427 u16 id; 428 } __packed; 429 430 struct nvsp_1_receive_buffer_section { 431 u32 offset; 432 u32 sub_alloc_size; 433 u32 num_sub_allocs; 434 u32 end_offset; 435 } __packed; 436 437 /* 438 * This message is used by the VSP to acknowledge a receive buffer send by the 439 * VSC. This message must be sent by the VSP before the VSP uses the receive 440 * buffer. 441 */ 442 struct nvsp_1_message_send_receive_buffer_complete { 443 u32 status; 444 u32 num_sections; 445 446 /* 447 * The receive buffer is split into two parts, a large suballocation 448 * section and a small suballocation section. These sections are then 449 * suballocated by a certain size. 450 */ 451 452 /* 453 * For example, the following break up of the receive buffer has 6 454 * large suballocations and 10 small suballocations. 455 */ 456 457 /* 458 * | Large Section | | Small Section | 459 * ------------------------------------------------------------ 460 * | | | | | | | | | | | | | | | | | | 461 * | | 462 * LargeOffset SmallOffset 463 */ 464 465 struct nvsp_1_receive_buffer_section sections[1]; 466 } __packed; 467 468 /* 469 * This message is sent by the VSC to revoke the receive buffer. After the VSP 470 * completes this transaction, the vsp should never use the receive buffer 471 * again. 472 */ 473 struct nvsp_1_message_revoke_receive_buffer { 474 u16 id; 475 }; 476 477 /* 478 * This message is used by the VSC to send a send buffer to the VSP. The VSC 479 * can then use the send buffer to send data to the VSP. 480 */ 481 struct nvsp_1_message_send_send_buffer { 482 u32 gpadl_handle; 483 u16 id; 484 } __packed; 485 486 /* 487 * This message is used by the VSP to acknowledge a send buffer sent by the 488 * VSC. This message must be sent by the VSP before the VSP uses the sent 489 * buffer. 490 */ 491 struct nvsp_1_message_send_send_buffer_complete { 492 u32 status; 493 494 /* 495 * The VSC gets to choose the size of the send buffer and the VSP gets 496 * to choose the sections size of the buffer. This was done to enable 497 * dynamic reconfigurations when the cost of GPA-direct buffers 498 * decreases. 499 */ 500 u32 section_size; 501 } __packed; 502 503 /* 504 * This message is sent by the VSC to revoke the send buffer. After the VSP 505 * completes this transaction, the vsp should never use the send buffer again. 506 */ 507 struct nvsp_1_message_revoke_send_buffer { 508 u16 id; 509 }; 510 511 /* 512 * This message is used by both the VSP and the VSC to send a RNDIS message to 513 * the opposite channel endpoint. 514 */ 515 struct nvsp_1_message_send_rndis_packet { 516 /* 517 * This field is specified by RNDIS. They assume there's two different 518 * channels of communication. However, the Network VSP only has one. 519 * Therefore, the channel travels with the RNDIS packet. 520 */ 521 u32 channel_type; 522 523 /* 524 * This field is used to send part or all of the data through a send 525 * buffer. This values specifies an index into the send buffer. If the 526 * index is 0xFFFFFFFF, then the send buffer is not being used and all 527 * of the data was sent through other VMBus mechanisms. 528 */ 529 u32 send_buf_section_index; 530 u32 send_buf_section_size; 531 } __packed; 532 533 /* 534 * This message is used by both the VSP and the VSC to complete a RNDIS message 535 * to the opposite channel endpoint. At this point, the initiator of this 536 * message cannot use any resources associated with the original RNDIS packet. 537 */ 538 struct nvsp_1_message_send_rndis_packet_complete { 539 u32 status; 540 }; 541 542 union nvsp_1_message_uber { 543 struct nvsp_1_message_send_ndis_version send_ndis_ver; 544 545 struct nvsp_1_message_send_receive_buffer send_recv_buf; 546 struct nvsp_1_message_send_receive_buffer_complete 547 send_recv_buf_complete; 548 struct nvsp_1_message_revoke_receive_buffer revoke_recv_buf; 549 550 struct nvsp_1_message_send_send_buffer send_send_buf; 551 struct nvsp_1_message_send_send_buffer_complete send_send_buf_complete; 552 struct nvsp_1_message_revoke_send_buffer revoke_send_buf; 553 554 struct nvsp_1_message_send_rndis_packet send_rndis_pkt; 555 struct nvsp_1_message_send_rndis_packet_complete 556 send_rndis_pkt_complete; 557 } __packed; 558 559 560 /* 561 * Network VSP protocol version 2 messages: 562 */ 563 struct nvsp_2_vsc_capability { 564 union { 565 u64 data; 566 struct { 567 u64 vmq:1; 568 u64 chimney:1; 569 u64 sriov:1; 570 u64 ieee8021q:1; 571 u64 correlation_id:1; 572 u64 teaming:1; 573 u64 vsubnetid:1; 574 u64 rsc:1; 575 }; 576 }; 577 } __packed; 578 579 struct nvsp_2_send_ndis_config { 580 u32 mtu; 581 u32 reserved; 582 struct nvsp_2_vsc_capability capability; 583 } __packed; 584 585 /* Allocate receive buffer */ 586 struct nvsp_2_alloc_rxbuf { 587 /* Allocation ID to match the allocation request and response */ 588 u32 alloc_id; 589 590 /* Length of the VM shared memory receive buffer that needs to 591 * be allocated 592 */ 593 u32 len; 594 } __packed; 595 596 /* Allocate receive buffer complete */ 597 struct nvsp_2_alloc_rxbuf_comp { 598 /* The NDIS_STATUS code for buffer allocation */ 599 u32 status; 600 601 u32 alloc_id; 602 603 /* GPADL handle for the allocated receive buffer */ 604 u32 gpadl_handle; 605 606 /* Receive buffer ID */ 607 u64 recv_buf_id; 608 } __packed; 609 610 struct nvsp_2_free_rxbuf { 611 u64 recv_buf_id; 612 } __packed; 613 614 union nvsp_2_message_uber { 615 struct nvsp_2_send_ndis_config send_ndis_config; 616 struct nvsp_2_alloc_rxbuf alloc_rxbuf; 617 struct nvsp_2_alloc_rxbuf_comp alloc_rxbuf_comp; 618 struct nvsp_2_free_rxbuf free_rxbuf; 619 } __packed; 620 621 struct nvsp_4_send_vf_association { 622 /* 1: allocated, serial number is valid. 0: not allocated */ 623 u32 allocated; 624 625 /* Serial number of the VF to team with */ 626 u32 serial; 627 } __packed; 628 629 enum nvsp_vm_datapath { 630 NVSP_DATAPATH_SYNTHETIC = 0, 631 NVSP_DATAPATH_VF, 632 NVSP_DATAPATH_MAX 633 }; 634 635 struct nvsp_4_sw_datapath { 636 u32 active_datapath; /* active data path in VM */ 637 } __packed; 638 639 union nvsp_4_message_uber { 640 struct nvsp_4_send_vf_association vf_assoc; 641 struct nvsp_4_sw_datapath active_dp; 642 } __packed; 643 644 enum nvsp_subchannel_operation { 645 NVSP_SUBCHANNEL_NONE = 0, 646 NVSP_SUBCHANNEL_ALLOCATE, 647 NVSP_SUBCHANNEL_MAX 648 }; 649 650 struct nvsp_5_subchannel_request { 651 u32 op; 652 u32 num_subchannels; 653 } __packed; 654 655 struct nvsp_5_subchannel_complete { 656 u32 status; 657 u32 num_subchannels; /* Actual number of subchannels allocated */ 658 } __packed; 659 660 struct nvsp_5_send_indirect_table { 661 /* The number of entries in the send indirection table */ 662 u32 count; 663 664 /* The offset of the send indirection table from the beginning of 665 * struct nvsp_message. 666 * The send indirection table tells which channel to put the send 667 * traffic on. Each entry is a channel number. 668 */ 669 u32 offset; 670 } __packed; 671 672 union nvsp_5_message_uber { 673 struct nvsp_5_subchannel_request subchn_req; 674 struct nvsp_5_subchannel_complete subchn_comp; 675 struct nvsp_5_send_indirect_table send_table; 676 } __packed; 677 678 enum nvsp_6_pd_api_op { 679 PD_API_OP_CONFIG = 1, 680 PD_API_OP_SW_DATAPATH, /* Switch Datapath */ 681 PD_API_OP_OPEN_PROVIDER, 682 PD_API_OP_CLOSE_PROVIDER, 683 PD_API_OP_CREATE_QUEUE, 684 PD_API_OP_FLUSH_QUEUE, 685 PD_API_OP_FREE_QUEUE, 686 PD_API_OP_ALLOC_COM_BUF, /* Allocate Common Buffer */ 687 PD_API_OP_FREE_COM_BUF, /* Free Common Buffer */ 688 PD_API_OP_MAX 689 }; 690 691 struct grp_affinity { 692 u64 mask; 693 u16 grp; 694 u16 reserved[3]; 695 } __packed; 696 697 struct nvsp_6_pd_api_req { 698 u32 op; 699 700 union { 701 /* MMIO information is sent from the VM to VSP */ 702 struct __packed { 703 u64 mmio_pa; /* MMIO Physical Address */ 704 u32 mmio_len; 705 706 /* Number of PD queues a VM can support */ 707 u16 num_subchn; 708 } config; 709 710 /* Switch Datapath */ 711 struct __packed { 712 /* Host Datapath Is PacketDirect */ 713 u8 host_dpath_is_pd; 714 715 /* Guest PacketDirect Is Enabled */ 716 u8 guest_pd_enabled; 717 } sw_dpath; 718 719 /* Open Provider*/ 720 struct __packed { 721 u32 prov_id; /* Provider id */ 722 u32 flag; 723 } open_prov; 724 725 /* Close Provider */ 726 struct __packed { 727 u32 prov_id; 728 } cls_prov; 729 730 /* Create Queue*/ 731 struct __packed { 732 u32 prov_id; 733 u16 q_id; 734 u16 q_size; 735 u8 is_recv_q; 736 u8 is_rss_q; 737 u32 recv_data_len; 738 struct grp_affinity affy; 739 } cr_q; 740 741 /* Delete Queue*/ 742 struct __packed { 743 u32 prov_id; 744 u16 q_id; 745 } del_q; 746 747 /* Flush Queue */ 748 struct __packed { 749 u32 prov_id; 750 u16 q_id; 751 } flush_q; 752 753 /* Allocate Common Buffer */ 754 struct __packed { 755 u32 len; 756 u32 pf_node; /* Preferred Node */ 757 u16 region_id; 758 } alloc_com_buf; 759 760 /* Free Common Buffer */ 761 struct __packed { 762 u32 len; 763 u64 pa; /* Physical Address */ 764 u32 pf_node; /* Preferred Node */ 765 u16 region_id; 766 u8 cache_type; 767 } free_com_buf; 768 } __packed; 769 } __packed; 770 771 struct nvsp_6_pd_api_comp { 772 u32 op; 773 u32 status; 774 775 union { 776 struct __packed { 777 /* actual number of PD queues allocated to the VM */ 778 u16 num_pd_q; 779 780 /* Num Receive Rss PD Queues */ 781 u8 num_rss_q; 782 783 u8 is_supported; /* Is supported by VSP */ 784 u8 is_enabled; /* Is enabled by VSP */ 785 } config; 786 787 /* Open Provider */ 788 struct __packed { 789 u32 prov_id; 790 } open_prov; 791 792 /* Create Queue */ 793 struct __packed { 794 u32 prov_id; 795 u16 q_id; 796 u16 q_size; 797 u32 recv_data_len; 798 struct grp_affinity affy; 799 } cr_q; 800 801 /* Allocate Common Buffer */ 802 struct __packed { 803 u64 pa; /* Physical Address */ 804 u32 len; 805 u32 pf_node; /* Preferred Node */ 806 u16 region_id; 807 u8 cache_type; 808 } alloc_com_buf; 809 } __packed; 810 } __packed; 811 812 struct nvsp_6_pd_buf { 813 u32 region_offset; 814 u16 region_id; 815 u16 is_partial:1; 816 u16 reserved:15; 817 } __packed; 818 819 struct nvsp_6_pd_batch_msg { 820 struct nvsp_message_header hdr; 821 u16 count; 822 u16 guest2host:1; 823 u16 is_recv:1; 824 u16 reserved:14; 825 struct nvsp_6_pd_buf pd_buf[0]; 826 } __packed; 827 828 union nvsp_6_message_uber { 829 struct nvsp_6_pd_api_req pd_req; 830 struct nvsp_6_pd_api_comp pd_comp; 831 } __packed; 832 833 union nvsp_all_messages { 834 union nvsp_message_init_uber init_msg; 835 union nvsp_1_message_uber v1_msg; 836 union nvsp_2_message_uber v2_msg; 837 union nvsp_4_message_uber v4_msg; 838 union nvsp_5_message_uber v5_msg; 839 union nvsp_6_message_uber v6_msg; 840 } __packed; 841 842 /* ALL Messages */ 843 struct nvsp_message { 844 struct nvsp_message_header hdr; 845 union nvsp_all_messages msg; 846 } __packed; 847 848 849 #define NETVSC_MTU 65535 850 #define NETVSC_MTU_MIN ETH_MIN_MTU 851 852 /* Max buffer sizes allowed by a host */ 853 #define NETVSC_RECEIVE_BUFFER_SIZE (1024 * 1024 * 31) /* 31MB */ 854 #define NETVSC_RECEIVE_BUFFER_SIZE_LEGACY (1024 * 1024 * 15) /* 15MB */ 855 #define NETVSC_RECEIVE_BUFFER_DEFAULT (1024 * 1024 * 16) 856 857 #define NETVSC_SEND_BUFFER_SIZE (1024 * 1024 * 15) /* 15MB */ 858 #define NETVSC_SEND_BUFFER_DEFAULT (1024 * 1024) 859 860 #define NETVSC_INVALID_INDEX -1 861 862 #define NETVSC_SEND_SECTION_SIZE 6144 863 #define NETVSC_RECV_SECTION_SIZE 1728 864 865 /* Default size of TX buf: 1MB, RX buf: 16MB */ 866 #define NETVSC_MIN_TX_SECTIONS 10 867 #define NETVSC_DEFAULT_TX (NETVSC_SEND_BUFFER_DEFAULT \ 868 / NETVSC_SEND_SECTION_SIZE) 869 #define NETVSC_MIN_RX_SECTIONS 10 870 #define NETVSC_DEFAULT_RX (NETVSC_RECEIVE_BUFFER_DEFAULT \ 871 / NETVSC_RECV_SECTION_SIZE) 872 873 #define NETVSC_RECEIVE_BUFFER_ID 0xcafe 874 #define NETVSC_SEND_BUFFER_ID 0 875 876 #define NETVSC_SUPPORTED_HW_FEATURES (NETIF_F_RXCSUM | NETIF_F_IP_CSUM | \ 877 NETIF_F_TSO | NETIF_F_IPV6_CSUM | \ 878 NETIF_F_TSO6 | NETIF_F_LRO | \ 879 NETIF_F_SG | NETIF_F_RXHASH) 880 881 #define VRSS_SEND_TAB_SIZE 16 /* must be power of 2 */ 882 #define VRSS_CHANNEL_MAX 64 883 #define VRSS_CHANNEL_DEFAULT 8 884 885 #define RNDIS_MAX_PKT_DEFAULT 8 886 #define RNDIS_PKT_ALIGN_DEFAULT 8 887 888 #define NETVSC_XDP_HDRM 256 889 890 #define NETVSC_MIN_OUT_MSG_SIZE (sizeof(struct vmpacket_descriptor) + \ 891 sizeof(struct nvsp_message)) 892 #define NETVSC_MIN_IN_MSG_SIZE sizeof(struct vmpacket_descriptor) 893 894 /* Estimated requestor size: 895 * out_ring_size/min_out_msg_size + in_ring_size/min_in_msg_size 896 */ 897 static inline u32 netvsc_rqstor_size(unsigned long ringbytes) 898 { 899 return ringbytes / NETVSC_MIN_OUT_MSG_SIZE + 900 ringbytes / NETVSC_MIN_IN_MSG_SIZE; 901 } 902 903 /* XFER PAGE packets can specify a maximum of 375 ranges for NDIS >= 6.0 904 * and a maximum of 64 ranges for NDIS < 6.0 with no RSC; with RSC, this 905 * limit is raised to 562 (= NVSP_RSC_MAX). 906 */ 907 #define NETVSC_MAX_XFER_PAGE_RANGES NVSP_RSC_MAX 908 #define NETVSC_XFER_HEADER_SIZE(rng_cnt) \ 909 (offsetof(struct vmtransfer_page_packet_header, ranges) + \ 910 (rng_cnt) * sizeof(struct vmtransfer_page_range)) 911 #define NETVSC_MAX_PKT_SIZE (NETVSC_XFER_HEADER_SIZE(NETVSC_MAX_XFER_PAGE_RANGES) + \ 912 sizeof(struct nvsp_message) + (sizeof(u32) * VRSS_SEND_TAB_SIZE)) 913 914 struct multi_send_data { 915 struct sk_buff *skb; /* skb containing the pkt */ 916 struct hv_netvsc_packet *pkt; /* netvsc pkt pending */ 917 u32 count; /* counter of batched packets */ 918 }; 919 920 struct recv_comp_data { 921 u64 tid; /* transaction id */ 922 u32 status; 923 }; 924 925 struct multi_recv_comp { 926 struct recv_comp_data *slots; 927 u32 first; /* first data entry */ 928 u32 next; /* next entry for writing */ 929 }; 930 931 #define NVSP_RSC_MAX 562 /* Max #RSC frags in a vmbus xfer page pkt */ 932 933 struct nvsc_rsc { 934 struct ndis_pkt_8021q_info vlan; 935 struct ndis_tcp_ip_checksum_info csum_info; 936 u32 hash_info; 937 u8 ppi_flags; /* valid/present bits for the above PPIs */ 938 u8 is_last; /* last RNDIS msg in a vmtransfer_page */ 939 u32 cnt; /* #fragments in an RSC packet */ 940 u32 pktlen; /* Full packet length */ 941 void *data[NVSP_RSC_MAX]; 942 u32 len[NVSP_RSC_MAX]; 943 }; 944 945 #define NVSC_RSC_VLAN BIT(0) /* valid/present bit for 'vlan' */ 946 #define NVSC_RSC_CSUM_INFO BIT(1) /* valid/present bit for 'csum_info' */ 947 #define NVSC_RSC_HASH_INFO BIT(2) /* valid/present bit for 'hash_info' */ 948 949 struct netvsc_stats_tx { 950 u64 packets; 951 u64 bytes; 952 u64 xdp_xmit; 953 struct u64_stats_sync syncp; 954 }; 955 956 struct netvsc_stats_rx { 957 u64 packets; 958 u64 bytes; 959 u64 broadcast; 960 u64 multicast; 961 u64 xdp_drop; 962 u64 xdp_redirect; 963 u64 xdp_tx; 964 struct u64_stats_sync syncp; 965 }; 966 967 struct netvsc_ethtool_stats { 968 unsigned long tx_scattered; 969 unsigned long tx_no_memory; 970 unsigned long tx_no_space; 971 unsigned long tx_too_big; 972 unsigned long tx_busy; 973 unsigned long tx_send_full; 974 unsigned long rx_comp_busy; 975 unsigned long rx_no_memory; 976 unsigned long stop_queue; 977 unsigned long wake_queue; 978 unsigned long vlan_error; 979 }; 980 981 struct netvsc_ethtool_pcpu_stats { 982 u64 rx_packets; 983 u64 rx_bytes; 984 u64 tx_packets; 985 u64 tx_bytes; 986 u64 vf_rx_packets; 987 u64 vf_rx_bytes; 988 u64 vf_tx_packets; 989 u64 vf_tx_bytes; 990 }; 991 992 struct netvsc_vf_pcpu_stats { 993 u64 rx_packets; 994 u64 rx_bytes; 995 u64 tx_packets; 996 u64 tx_bytes; 997 struct u64_stats_sync syncp; 998 u32 tx_dropped; 999 }; 1000 1001 struct netvsc_reconfig { 1002 struct list_head list; 1003 u32 event; 1004 }; 1005 1006 /* L4 hash bits for different protocols */ 1007 #define HV_TCP4_L4HASH 1 1008 #define HV_TCP6_L4HASH 2 1009 #define HV_UDP4_L4HASH 4 1010 #define HV_UDP6_L4HASH 8 1011 #define HV_DEFAULT_L4HASH (HV_TCP4_L4HASH | HV_TCP6_L4HASH | HV_UDP4_L4HASH | \ 1012 HV_UDP6_L4HASH) 1013 1014 /* The context of the netvsc device */ 1015 struct net_device_context { 1016 /* point back to our device context */ 1017 struct hv_device *device_ctx; 1018 /* netvsc_device */ 1019 struct netvsc_device __rcu *nvdev; 1020 /* list of netvsc net_devices */ 1021 struct list_head list; 1022 /* reconfigure work */ 1023 struct delayed_work dwork; 1024 /* last reconfig time */ 1025 unsigned long last_reconfig; 1026 /* reconfig events */ 1027 struct list_head reconfig_events; 1028 /* list protection */ 1029 spinlock_t lock; 1030 1031 u32 msg_enable; /* debug level */ 1032 1033 u32 tx_checksum_mask; 1034 1035 u32 tx_table[VRSS_SEND_TAB_SIZE]; 1036 1037 u16 rx_table[ITAB_NUM]; 1038 1039 /* Ethtool settings */ 1040 u8 duplex; 1041 u32 speed; 1042 u32 l4_hash; /* L4 hash settings */ 1043 struct netvsc_ethtool_stats eth_stats; 1044 1045 /* State to manage the associated VF interface. */ 1046 struct net_device __rcu *vf_netdev; 1047 struct netvsc_vf_pcpu_stats __percpu *vf_stats; 1048 struct delayed_work vf_takeover; 1049 1050 /* 1: allocated, serial number is valid. 0: not allocated */ 1051 u32 vf_alloc; 1052 /* Serial number of the VF to team with */ 1053 u32 vf_serial; 1054 /* completion variable to confirm vf association */ 1055 struct completion vf_add; 1056 /* Is the current data path through the VF NIC? */ 1057 bool data_path_is_vf; 1058 1059 /* Used to temporarily save the config info across hibernation */ 1060 struct netvsc_device_info *saved_netvsc_dev_info; 1061 }; 1062 1063 /* Azure hosts don't support non-TCP port numbers in hashing for fragmented 1064 * packets. We can use ethtool to change UDP hash level when necessary. 1065 */ 1066 static inline u32 netvsc_get_hash(struct sk_buff *skb, 1067 const struct net_device_context *ndc) 1068 { 1069 struct flow_keys flow; 1070 u32 hash, pkt_proto = 0; 1071 static u32 hashrnd __read_mostly; 1072 1073 net_get_random_once(&hashrnd, sizeof(hashrnd)); 1074 1075 if (!skb_flow_dissect_flow_keys(skb, &flow, 0)) 1076 return 0; 1077 1078 switch (flow.basic.ip_proto) { 1079 case IPPROTO_TCP: 1080 if (flow.basic.n_proto == htons(ETH_P_IP)) 1081 pkt_proto = HV_TCP4_L4HASH; 1082 else if (flow.basic.n_proto == htons(ETH_P_IPV6)) 1083 pkt_proto = HV_TCP6_L4HASH; 1084 1085 break; 1086 1087 case IPPROTO_UDP: 1088 if (flow.basic.n_proto == htons(ETH_P_IP)) 1089 pkt_proto = HV_UDP4_L4HASH; 1090 else if (flow.basic.n_proto == htons(ETH_P_IPV6)) 1091 pkt_proto = HV_UDP6_L4HASH; 1092 1093 break; 1094 } 1095 1096 if (pkt_proto & ndc->l4_hash) { 1097 return skb_get_hash(skb); 1098 } else { 1099 if (flow.basic.n_proto == htons(ETH_P_IP)) 1100 hash = jhash2((u32 *)&flow.addrs.v4addrs, 2, hashrnd); 1101 else if (flow.basic.n_proto == htons(ETH_P_IPV6)) 1102 hash = jhash2((u32 *)&flow.addrs.v6addrs, 8, hashrnd); 1103 else 1104 return 0; 1105 1106 __skb_set_sw_hash(skb, hash, false); 1107 } 1108 1109 return hash; 1110 } 1111 1112 /* Per channel data */ 1113 struct netvsc_channel { 1114 struct vmbus_channel *channel; 1115 struct netvsc_device *net_device; 1116 void *recv_buf; /* buffer to copy packets out from the receive buffer */ 1117 const struct vmpacket_descriptor *desc; 1118 struct napi_struct napi; 1119 struct multi_send_data msd; 1120 struct multi_recv_comp mrc; 1121 atomic_t queue_sends; 1122 struct nvsc_rsc rsc; 1123 1124 struct bpf_prog __rcu *bpf_prog; 1125 struct xdp_rxq_info xdp_rxq; 1126 bool xdp_flush; 1127 1128 struct netvsc_stats_tx tx_stats; 1129 struct netvsc_stats_rx rx_stats; 1130 }; 1131 1132 /* Per netvsc device */ 1133 struct netvsc_device { 1134 u32 nvsp_version; 1135 1136 wait_queue_head_t wait_drain; 1137 bool destroy; 1138 bool tx_disable; /* if true, do not wake up queue again */ 1139 1140 /* Receive buffer allocated by us but manages by NetVSP */ 1141 void *recv_buf; 1142 void *recv_original_buf; 1143 u32 recv_buf_size; /* allocated bytes */ 1144 struct vmbus_gpadl recv_buf_gpadl_handle; 1145 u32 recv_section_cnt; 1146 u32 recv_section_size; 1147 u32 recv_completion_cnt; 1148 1149 /* Send buffer allocated by us */ 1150 void *send_buf; 1151 void *send_original_buf; 1152 u32 send_buf_size; 1153 struct vmbus_gpadl send_buf_gpadl_handle; 1154 u32 send_section_cnt; 1155 u32 send_section_size; 1156 unsigned long *send_section_map; 1157 1158 /* Used for NetVSP initialization protocol */ 1159 struct completion channel_init_wait; 1160 struct nvsp_message channel_init_pkt; 1161 1162 struct nvsp_message revoke_packet; 1163 1164 u32 max_chn; 1165 u32 num_chn; 1166 1167 atomic_t open_chn; 1168 struct work_struct subchan_work; 1169 wait_queue_head_t subchan_open; 1170 1171 struct rndis_device *extension; 1172 1173 u32 max_pkt; /* max number of pkt in one send, e.g. 8 */ 1174 u32 pkt_align; /* alignment bytes, e.g. 8 */ 1175 1176 struct netvsc_channel chan_table[VRSS_CHANNEL_MAX]; 1177 1178 struct rcu_head rcu; 1179 }; 1180 1181 /* NdisInitialize message */ 1182 struct rndis_initialize_request { 1183 u32 req_id; 1184 u32 major_ver; 1185 u32 minor_ver; 1186 u32 max_xfer_size; 1187 }; 1188 1189 /* Response to NdisInitialize */ 1190 struct rndis_initialize_complete { 1191 u32 req_id; 1192 u32 status; 1193 u32 major_ver; 1194 u32 minor_ver; 1195 u32 dev_flags; 1196 u32 medium; 1197 u32 max_pkt_per_msg; 1198 u32 max_xfer_size; 1199 u32 pkt_alignment_factor; 1200 u32 af_list_offset; 1201 u32 af_list_size; 1202 }; 1203 1204 /* Call manager devices only: Information about an address family */ 1205 /* supported by the device is appended to the response to NdisInitialize. */ 1206 struct rndis_co_address_family { 1207 u32 address_family; 1208 u32 major_ver; 1209 u32 minor_ver; 1210 }; 1211 1212 /* NdisHalt message */ 1213 struct rndis_halt_request { 1214 u32 req_id; 1215 }; 1216 1217 /* NdisQueryRequest message */ 1218 struct rndis_query_request { 1219 u32 req_id; 1220 u32 oid; 1221 u32 info_buflen; 1222 u32 info_buf_offset; 1223 u32 dev_vc_handle; 1224 }; 1225 1226 /* Response to NdisQueryRequest */ 1227 struct rndis_query_complete { 1228 u32 req_id; 1229 u32 status; 1230 u32 info_buflen; 1231 u32 info_buf_offset; 1232 }; 1233 1234 /* NdisSetRequest message */ 1235 struct rndis_set_request { 1236 u32 req_id; 1237 u32 oid; 1238 u32 info_buflen; 1239 u32 info_buf_offset; 1240 u32 dev_vc_handle; 1241 u8 info_buf[]; 1242 }; 1243 1244 /* Response to NdisSetRequest */ 1245 struct rndis_set_complete { 1246 u32 req_id; 1247 u32 status; 1248 }; 1249 1250 /* NdisReset message */ 1251 struct rndis_reset_request { 1252 u32 reserved; 1253 }; 1254 1255 /* Response to NdisReset */ 1256 struct rndis_reset_complete { 1257 u32 status; 1258 u32 addressing_reset; 1259 }; 1260 1261 /* NdisMIndicateStatus message */ 1262 struct rndis_indicate_status { 1263 u32 status; 1264 u32 status_buflen; 1265 u32 status_buf_offset; 1266 }; 1267 1268 /* Diagnostic information passed as the status buffer in */ 1269 /* struct rndis_indicate_status messages signifying error conditions. */ 1270 struct rndis_diagnostic_info { 1271 u32 diag_status; 1272 u32 error_offset; 1273 }; 1274 1275 /* NdisKeepAlive message */ 1276 struct rndis_keepalive_request { 1277 u32 req_id; 1278 }; 1279 1280 /* Response to NdisKeepAlive */ 1281 struct rndis_keepalive_complete { 1282 u32 req_id; 1283 u32 status; 1284 }; 1285 1286 /* 1287 * Data message. All Offset fields contain byte offsets from the beginning of 1288 * struct rndis_packet. All Length fields are in bytes. VcHandle is set 1289 * to 0 for connectionless data, otherwise it contains the VC handle. 1290 */ 1291 struct rndis_packet { 1292 u32 data_offset; 1293 u32 data_len; 1294 u32 oob_data_offset; 1295 u32 oob_data_len; 1296 u32 num_oob_data_elements; 1297 u32 per_pkt_info_offset; 1298 u32 per_pkt_info_len; 1299 u32 vc_handle; 1300 u32 reserved; 1301 }; 1302 1303 /* Optional Out of Band data associated with a Data message. */ 1304 struct rndis_oobd { 1305 u32 size; 1306 u32 type; 1307 u32 class_info_offset; 1308 }; 1309 1310 /* Packet extension field contents associated with a Data message. */ 1311 struct rndis_per_packet_info { 1312 u32 size; 1313 u32 type:31; 1314 u32 internal:1; 1315 u32 ppi_offset; 1316 }; 1317 1318 enum ndis_per_pkt_info_type { 1319 TCPIP_CHKSUM_PKTINFO, 1320 IPSEC_PKTINFO, 1321 TCP_LARGESEND_PKTINFO, 1322 CLASSIFICATION_HANDLE_PKTINFO, 1323 NDIS_RESERVED, 1324 SG_LIST_PKTINFO, 1325 IEEE_8021Q_INFO, 1326 ORIGINAL_PKTINFO, 1327 PACKET_CANCEL_ID, 1328 NBL_HASH_VALUE = PACKET_CANCEL_ID, 1329 ORIGINAL_NET_BUFLIST, 1330 CACHED_NET_BUFLIST, 1331 SHORT_PKT_PADINFO, 1332 MAX_PER_PKT_INFO 1333 }; 1334 1335 enum rndis_per_pkt_info_interal_type { 1336 RNDIS_PKTINFO_ID = 1, 1337 /* Add more members here */ 1338 1339 RNDIS_PKTINFO_MAX 1340 }; 1341 1342 #define RNDIS_PKTINFO_SUBALLOC BIT(0) 1343 #define RNDIS_PKTINFO_1ST_FRAG BIT(1) 1344 #define RNDIS_PKTINFO_LAST_FRAG BIT(2) 1345 1346 #define RNDIS_PKTINFO_ID_V1 1 1347 1348 struct rndis_pktinfo_id { 1349 u8 ver; 1350 u8 flag; 1351 u16 pkt_id; 1352 }; 1353 1354 struct ndis_object_header { 1355 u8 type; 1356 u8 revision; 1357 u16 size; 1358 }; 1359 1360 #define NDIS_OBJECT_TYPE_DEFAULT 0x80 1361 #define NDIS_OFFLOAD_PARAMETERS_REVISION_3 3 1362 #define NDIS_OFFLOAD_PARAMETERS_REVISION_2 2 1363 #define NDIS_OFFLOAD_PARAMETERS_REVISION_1 1 1364 1365 #define NDIS_OFFLOAD_PARAMETERS_NO_CHANGE 0 1366 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_DISABLED 1 1367 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_ENABLED 2 1368 #define NDIS_OFFLOAD_PARAMETERS_LSOV1_ENABLED 2 1369 #define NDIS_OFFLOAD_PARAMETERS_RSC_DISABLED 1 1370 #define NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED 2 1371 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_DISABLED 1 1372 #define NDIS_OFFLOAD_PARAMETERS_TX_ENABLED_RX_DISABLED 2 1373 #define NDIS_OFFLOAD_PARAMETERS_RX_ENABLED_TX_DISABLED 3 1374 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED 4 1375 1376 #define NDIS_TCP_LARGE_SEND_OFFLOAD_V2_TYPE 1 1377 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV4 0 1378 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV6 1 1379 1380 #define VERSION_4_OFFLOAD_SIZE 22 1381 /* 1382 * New offload OIDs for NDIS 6 1383 */ 1384 #define OID_TCP_OFFLOAD_CURRENT_CONFIG 0xFC01020B /* query only */ 1385 #define OID_TCP_OFFLOAD_PARAMETERS 0xFC01020C /* set only */ 1386 #define OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020D/* query only */ 1387 #define OID_TCP_CONNECTION_OFFLOAD_CURRENT_CONFIG 0xFC01020E /* query only */ 1388 #define OID_TCP_CONNECTION_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020F /* query */ 1389 #define OID_OFFLOAD_ENCAPSULATION 0x0101010A /* set/query */ 1390 1391 /* 1392 * OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES 1393 * ndis_type: NDIS_OBJTYPE_OFFLOAD 1394 */ 1395 1396 #define NDIS_OFFLOAD_ENCAP_NONE 0x0000 1397 #define NDIS_OFFLOAD_ENCAP_NULL 0x0001 1398 #define NDIS_OFFLOAD_ENCAP_8023 0x0002 1399 #define NDIS_OFFLOAD_ENCAP_8023PQ 0x0004 1400 #define NDIS_OFFLOAD_ENCAP_8023PQ_OOB 0x0008 1401 #define NDIS_OFFLOAD_ENCAP_RFC1483 0x0010 1402 1403 struct ndis_csum_offload { 1404 u32 ip4_txenc; 1405 u32 ip4_txcsum; 1406 #define NDIS_TXCSUM_CAP_IP4OPT 0x001 1407 #define NDIS_TXCSUM_CAP_TCP4OPT 0x004 1408 #define NDIS_TXCSUM_CAP_TCP4 0x010 1409 #define NDIS_TXCSUM_CAP_UDP4 0x040 1410 #define NDIS_TXCSUM_CAP_IP4 0x100 1411 1412 #define NDIS_TXCSUM_ALL_TCP4 (NDIS_TXCSUM_CAP_TCP4 | NDIS_TXCSUM_CAP_TCP4OPT) 1413 1414 u32 ip4_rxenc; 1415 u32 ip4_rxcsum; 1416 #define NDIS_RXCSUM_CAP_IP4OPT 0x001 1417 #define NDIS_RXCSUM_CAP_TCP4OPT 0x004 1418 #define NDIS_RXCSUM_CAP_TCP4 0x010 1419 #define NDIS_RXCSUM_CAP_UDP4 0x040 1420 #define NDIS_RXCSUM_CAP_IP4 0x100 1421 u32 ip6_txenc; 1422 u32 ip6_txcsum; 1423 #define NDIS_TXCSUM_CAP_IP6EXT 0x001 1424 #define NDIS_TXCSUM_CAP_TCP6OPT 0x004 1425 #define NDIS_TXCSUM_CAP_TCP6 0x010 1426 #define NDIS_TXCSUM_CAP_UDP6 0x040 1427 u32 ip6_rxenc; 1428 u32 ip6_rxcsum; 1429 #define NDIS_RXCSUM_CAP_IP6EXT 0x001 1430 #define NDIS_RXCSUM_CAP_TCP6OPT 0x004 1431 #define NDIS_RXCSUM_CAP_TCP6 0x010 1432 #define NDIS_RXCSUM_CAP_UDP6 0x040 1433 1434 #define NDIS_TXCSUM_ALL_TCP6 (NDIS_TXCSUM_CAP_TCP6 | \ 1435 NDIS_TXCSUM_CAP_TCP6OPT | \ 1436 NDIS_TXCSUM_CAP_IP6EXT) 1437 }; 1438 1439 struct ndis_lsov1_offload { 1440 u32 encap; 1441 u32 maxsize; 1442 u32 minsegs; 1443 u32 opts; 1444 }; 1445 1446 struct ndis_ipsecv1_offload { 1447 u32 encap; 1448 u32 ah_esp; 1449 u32 xport_tun; 1450 u32 ip4_opts; 1451 u32 flags; 1452 u32 ip4_ah; 1453 u32 ip4_esp; 1454 }; 1455 1456 struct ndis_lsov2_offload { 1457 u32 ip4_encap; 1458 u32 ip4_maxsz; 1459 u32 ip4_minsg; 1460 u32 ip6_encap; 1461 u32 ip6_maxsz; 1462 u32 ip6_minsg; 1463 u32 ip6_opts; 1464 #define NDIS_LSOV2_CAP_IP6EXT 0x001 1465 #define NDIS_LSOV2_CAP_TCP6OPT 0x004 1466 1467 #define NDIS_LSOV2_CAP_IP6 (NDIS_LSOV2_CAP_IP6EXT | \ 1468 NDIS_LSOV2_CAP_TCP6OPT) 1469 }; 1470 1471 struct ndis_ipsecv2_offload { 1472 u32 encap; 1473 u8 ip6; 1474 u8 ip4opt; 1475 u8 ip6ext; 1476 u8 ah; 1477 u8 esp; 1478 u8 ah_esp; 1479 u8 xport; 1480 u8 tun; 1481 u8 xport_tun; 1482 u8 lso; 1483 u8 extseq; 1484 u32 udp_esp; 1485 u32 auth; 1486 u32 crypto; 1487 u32 sa_caps; 1488 }; 1489 1490 struct ndis_rsc_offload { 1491 u8 ip4; 1492 u8 ip6; 1493 }; 1494 1495 struct ndis_encap_offload { 1496 u32 flags; 1497 u32 maxhdr; 1498 }; 1499 1500 struct ndis_offload { 1501 struct ndis_object_header header; 1502 struct ndis_csum_offload csum; 1503 struct ndis_lsov1_offload lsov1; 1504 struct ndis_ipsecv1_offload ipsecv1; 1505 struct ndis_lsov2_offload lsov2; 1506 u32 flags; 1507 /* NDIS >= 6.1 */ 1508 struct ndis_ipsecv2_offload ipsecv2; 1509 /* NDIS >= 6.30 */ 1510 struct ndis_rsc_offload rsc; 1511 struct ndis_encap_offload encap_gre; 1512 }; 1513 1514 #define NDIS_OFFLOAD_SIZE sizeof(struct ndis_offload) 1515 #define NDIS_OFFLOAD_SIZE_6_0 offsetof(struct ndis_offload, ipsecv2) 1516 #define NDIS_OFFLOAD_SIZE_6_1 offsetof(struct ndis_offload, rsc) 1517 1518 struct ndis_offload_params { 1519 struct ndis_object_header header; 1520 u8 ip_v4_csum; 1521 u8 tcp_ip_v4_csum; 1522 u8 udp_ip_v4_csum; 1523 u8 tcp_ip_v6_csum; 1524 u8 udp_ip_v6_csum; 1525 u8 lso_v1; 1526 u8 ip_sec_v1; 1527 u8 lso_v2_ipv4; 1528 u8 lso_v2_ipv6; 1529 u8 tcp_connection_ip_v4; 1530 u8 tcp_connection_ip_v6; 1531 u32 flags; 1532 u8 ip_sec_v2; 1533 u8 ip_sec_v2_ip_v4; 1534 struct { 1535 u8 rsc_ip_v4; 1536 u8 rsc_ip_v6; 1537 }; 1538 struct { 1539 u8 encapsulated_packet_task_offload; 1540 u8 encapsulation_types; 1541 }; 1542 }; 1543 1544 struct ndis_tcp_lso_info { 1545 union { 1546 struct { 1547 u32 unused:30; 1548 u32 type:1; 1549 u32 reserved2:1; 1550 } transmit; 1551 struct { 1552 u32 mss:20; 1553 u32 tcp_header_offset:10; 1554 u32 type:1; 1555 u32 reserved2:1; 1556 } lso_v1_transmit; 1557 struct { 1558 u32 tcp_payload:30; 1559 u32 type:1; 1560 u32 reserved2:1; 1561 } lso_v1_transmit_complete; 1562 struct { 1563 u32 mss:20; 1564 u32 tcp_header_offset:10; 1565 u32 type:1; 1566 u32 ip_version:1; 1567 } lso_v2_transmit; 1568 struct { 1569 u32 reserved:30; 1570 u32 type:1; 1571 u32 reserved2:1; 1572 } lso_v2_transmit_complete; 1573 u32 value; 1574 }; 1575 }; 1576 1577 #define NDIS_VLAN_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \ 1578 sizeof(struct ndis_pkt_8021q_info)) 1579 1580 #define NDIS_CSUM_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \ 1581 sizeof(struct ndis_tcp_ip_checksum_info)) 1582 1583 #define NDIS_LSO_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \ 1584 sizeof(struct ndis_tcp_lso_info)) 1585 1586 #define NDIS_HASH_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \ 1587 sizeof(u32)) 1588 1589 /* Total size of all PPI data */ 1590 #define NDIS_ALL_PPI_SIZE (NDIS_VLAN_PPI_SIZE + NDIS_CSUM_PPI_SIZE + \ 1591 NDIS_LSO_PPI_SIZE + NDIS_HASH_PPI_SIZE) 1592 1593 /* Format of Information buffer passed in a SetRequest for the OID */ 1594 /* OID_GEN_RNDIS_CONFIG_PARAMETER. */ 1595 struct rndis_config_parameter_info { 1596 u32 parameter_name_offset; 1597 u32 parameter_name_length; 1598 u32 parameter_type; 1599 u32 parameter_value_offset; 1600 u32 parameter_value_length; 1601 }; 1602 1603 /* Values for ParameterType in struct rndis_config_parameter_info */ 1604 #define RNDIS_CONFIG_PARAM_TYPE_INTEGER 0 1605 #define RNDIS_CONFIG_PARAM_TYPE_STRING 2 1606 1607 /* CONDIS Miniport messages for connection oriented devices */ 1608 /* that do not implement a call manager. */ 1609 1610 /* CoNdisMiniportCreateVc message */ 1611 struct rcondis_mp_create_vc { 1612 u32 req_id; 1613 u32 ndis_vc_handle; 1614 }; 1615 1616 /* Response to CoNdisMiniportCreateVc */ 1617 struct rcondis_mp_create_vc_complete { 1618 u32 req_id; 1619 u32 dev_vc_handle; 1620 u32 status; 1621 }; 1622 1623 /* CoNdisMiniportDeleteVc message */ 1624 struct rcondis_mp_delete_vc { 1625 u32 req_id; 1626 u32 dev_vc_handle; 1627 }; 1628 1629 /* Response to CoNdisMiniportDeleteVc */ 1630 struct rcondis_mp_delete_vc_complete { 1631 u32 req_id; 1632 u32 status; 1633 }; 1634 1635 /* CoNdisMiniportQueryRequest message */ 1636 struct rcondis_mp_query_request { 1637 u32 req_id; 1638 u32 request_type; 1639 u32 oid; 1640 u32 dev_vc_handle; 1641 u32 info_buflen; 1642 u32 info_buf_offset; 1643 }; 1644 1645 /* CoNdisMiniportSetRequest message */ 1646 struct rcondis_mp_set_request { 1647 u32 req_id; 1648 u32 request_type; 1649 u32 oid; 1650 u32 dev_vc_handle; 1651 u32 info_buflen; 1652 u32 info_buf_offset; 1653 }; 1654 1655 /* CoNdisIndicateStatus message */ 1656 struct rcondis_indicate_status { 1657 u32 ndis_vc_handle; 1658 u32 status; 1659 u32 status_buflen; 1660 u32 status_buf_offset; 1661 }; 1662 1663 /* CONDIS Call/VC parameters */ 1664 struct rcondis_specific_parameters { 1665 u32 parameter_type; 1666 u32 parameter_length; 1667 u32 parameter_lffset; 1668 }; 1669 1670 struct rcondis_media_parameters { 1671 u32 flags; 1672 u32 reserved1; 1673 u32 reserved2; 1674 struct rcondis_specific_parameters media_specific; 1675 }; 1676 1677 struct rndis_flowspec { 1678 u32 token_rate; 1679 u32 token_bucket_size; 1680 u32 peak_bandwidth; 1681 u32 latency; 1682 u32 delay_variation; 1683 u32 service_type; 1684 u32 max_sdu_size; 1685 u32 minimum_policed_size; 1686 }; 1687 1688 struct rcondis_call_manager_parameters { 1689 struct rndis_flowspec transmit; 1690 struct rndis_flowspec receive; 1691 struct rcondis_specific_parameters call_mgr_specific; 1692 }; 1693 1694 /* CoNdisMiniportActivateVc message */ 1695 struct rcondis_mp_activate_vc_request { 1696 u32 req_id; 1697 u32 flags; 1698 u32 dev_vc_handle; 1699 u32 media_params_offset; 1700 u32 media_params_length; 1701 u32 call_mgr_params_offset; 1702 u32 call_mgr_params_length; 1703 }; 1704 1705 /* Response to CoNdisMiniportActivateVc */ 1706 struct rcondis_mp_activate_vc_complete { 1707 u32 req_id; 1708 u32 status; 1709 }; 1710 1711 /* CoNdisMiniportDeactivateVc message */ 1712 struct rcondis_mp_deactivate_vc_request { 1713 u32 req_id; 1714 u32 flags; 1715 u32 dev_vc_handle; 1716 }; 1717 1718 /* Response to CoNdisMiniportDeactivateVc */ 1719 struct rcondis_mp_deactivate_vc_complete { 1720 u32 req_id; 1721 u32 status; 1722 }; 1723 1724 1725 /* union with all of the RNDIS messages */ 1726 union rndis_message_container { 1727 struct rndis_packet pkt; 1728 struct rndis_initialize_request init_req; 1729 struct rndis_halt_request halt_req; 1730 struct rndis_query_request query_req; 1731 struct rndis_set_request set_req; 1732 struct rndis_reset_request reset_req; 1733 struct rndis_keepalive_request keep_alive_req; 1734 struct rndis_indicate_status indicate_status; 1735 struct rndis_initialize_complete init_complete; 1736 struct rndis_query_complete query_complete; 1737 struct rndis_set_complete set_complete; 1738 struct rndis_reset_complete reset_complete; 1739 struct rndis_keepalive_complete keep_alive_complete; 1740 struct rcondis_mp_create_vc co_miniport_create_vc; 1741 struct rcondis_mp_delete_vc co_miniport_delete_vc; 1742 struct rcondis_indicate_status co_indicate_status; 1743 struct rcondis_mp_activate_vc_request co_miniport_activate_vc; 1744 struct rcondis_mp_deactivate_vc_request co_miniport_deactivate_vc; 1745 struct rcondis_mp_create_vc_complete co_miniport_create_vc_complete; 1746 struct rcondis_mp_delete_vc_complete co_miniport_delete_vc_complete; 1747 struct rcondis_mp_activate_vc_complete co_miniport_activate_vc_complete; 1748 struct rcondis_mp_deactivate_vc_complete 1749 co_miniport_deactivate_vc_complete; 1750 }; 1751 1752 /* Remote NDIS message format */ 1753 struct rndis_message { 1754 u32 ndis_msg_type; 1755 1756 /* Total length of this message, from the beginning */ 1757 /* of the struct rndis_message, in bytes. */ 1758 u32 msg_len; 1759 1760 /* Actual message */ 1761 union rndis_message_container msg; 1762 }; 1763 1764 1765 /* Handy macros */ 1766 1767 /* get the size of an RNDIS message. Pass in the message type, */ 1768 /* struct rndis_set_request, struct rndis_packet for example */ 1769 #define RNDIS_MESSAGE_SIZE(msg) \ 1770 (sizeof(msg) + (sizeof(struct rndis_message) - \ 1771 sizeof(union rndis_message_container))) 1772 1773 #define RNDIS_HEADER_SIZE (sizeof(struct rndis_message) - \ 1774 sizeof(union rndis_message_container)) 1775 1776 #define RNDIS_AND_PPI_SIZE (sizeof(struct rndis_message) + NDIS_ALL_PPI_SIZE) 1777 1778 #define NDIS_PACKET_TYPE_DIRECTED 0x00000001 1779 #define NDIS_PACKET_TYPE_MULTICAST 0x00000002 1780 #define NDIS_PACKET_TYPE_ALL_MULTICAST 0x00000004 1781 #define NDIS_PACKET_TYPE_BROADCAST 0x00000008 1782 #define NDIS_PACKET_TYPE_SOURCE_ROUTING 0x00000010 1783 #define NDIS_PACKET_TYPE_PROMISCUOUS 0x00000020 1784 #define NDIS_PACKET_TYPE_SMT 0x00000040 1785 #define NDIS_PACKET_TYPE_ALL_LOCAL 0x00000080 1786 #define NDIS_PACKET_TYPE_GROUP 0x00000100 1787 #define NDIS_PACKET_TYPE_ALL_FUNCTIONAL 0x00000200 1788 #define NDIS_PACKET_TYPE_FUNCTIONAL 0x00000400 1789 #define NDIS_PACKET_TYPE_MAC_FRAME 0x00000800 1790 1791 #define TRANSPORT_INFO_NOT_IP 0 1792 #define TRANSPORT_INFO_IPV4_TCP 0x01 1793 #define TRANSPORT_INFO_IPV4_UDP 0x02 1794 #define TRANSPORT_INFO_IPV6_TCP 0x10 1795 #define TRANSPORT_INFO_IPV6_UDP 0x20 1796 1797 #define RETRY_US_LO 5000 1798 #define RETRY_US_HI 10000 1799 #define RETRY_MAX 2000 /* >10 sec */ 1800 1801 void netvsc_dma_unmap(struct hv_device *hv_dev, 1802 struct hv_netvsc_packet *packet); 1803 #endif /* _HYPERV_NET_H */ 1804