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 #include <net/xdp.h> 20 21 /* RSS related */ 22 #define OID_GEN_RECEIVE_SCALE_CAPABILITIES 0x00010203 /* query only */ 23 #define OID_GEN_RECEIVE_SCALE_PARAMETERS 0x00010204 /* query and set */ 24 25 #define NDIS_OBJECT_TYPE_RSS_CAPABILITIES 0x88 26 #define NDIS_OBJECT_TYPE_RSS_PARAMETERS 0x89 27 #define NDIS_OBJECT_TYPE_OFFLOAD 0xa7 28 29 #define NDIS_RECEIVE_SCALE_CAPABILITIES_REVISION_2 2 30 #define NDIS_RECEIVE_SCALE_PARAMETERS_REVISION_2 2 31 32 struct ndis_obj_header { 33 u8 type; 34 u8 rev; 35 u16 size; 36 } __packed; 37 38 /* ndis_recv_scale_cap/cap_flag */ 39 #define NDIS_RSS_CAPS_MESSAGE_SIGNALED_INTERRUPTS 0x01000000 40 #define NDIS_RSS_CAPS_CLASSIFICATION_AT_ISR 0x02000000 41 #define NDIS_RSS_CAPS_CLASSIFICATION_AT_DPC 0x04000000 42 #define NDIS_RSS_CAPS_USING_MSI_X 0x08000000 43 #define NDIS_RSS_CAPS_RSS_AVAILABLE_ON_PORTS 0x10000000 44 #define NDIS_RSS_CAPS_SUPPORTS_MSI_X 0x20000000 45 #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV4 0x00000100 46 #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV6 0x00000200 47 #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV6_EX 0x00000400 48 49 struct ndis_recv_scale_cap { /* NDIS_RECEIVE_SCALE_CAPABILITIES */ 50 struct ndis_obj_header hdr; 51 u32 cap_flag; 52 u32 num_int_msg; 53 u32 num_recv_que; 54 u16 num_indirect_tabent; 55 } __packed; 56 57 58 /* ndis_recv_scale_param flags */ 59 #define NDIS_RSS_PARAM_FLAG_BASE_CPU_UNCHANGED 0x0001 60 #define NDIS_RSS_PARAM_FLAG_HASH_INFO_UNCHANGED 0x0002 61 #define NDIS_RSS_PARAM_FLAG_ITABLE_UNCHANGED 0x0004 62 #define NDIS_RSS_PARAM_FLAG_HASH_KEY_UNCHANGED 0x0008 63 #define NDIS_RSS_PARAM_FLAG_DISABLE_RSS 0x0010 64 65 /* Hash info bits */ 66 #define NDIS_HASH_FUNC_TOEPLITZ 0x00000001 67 #define NDIS_HASH_IPV4 0x00000100 68 #define NDIS_HASH_TCP_IPV4 0x00000200 69 #define NDIS_HASH_IPV6 0x00000400 70 #define NDIS_HASH_IPV6_EX 0x00000800 71 #define NDIS_HASH_TCP_IPV6 0x00001000 72 #define NDIS_HASH_TCP_IPV6_EX 0x00002000 73 74 #define NDIS_RSS_INDIRECTION_TABLE_MAX_SIZE_REVISION_2 (128 * 4) 75 #define NDIS_RSS_HASH_SECRET_KEY_MAX_SIZE_REVISION_2 40 76 77 #define ITAB_NUM 128 78 #define ITAB_NUM_MAX 256 79 80 struct ndis_recv_scale_param { /* NDIS_RECEIVE_SCALE_PARAMETERS */ 81 struct ndis_obj_header hdr; 82 83 /* Qualifies the rest of the information */ 84 u16 flag; 85 86 /* The base CPU number to do receive processing. not used */ 87 u16 base_cpu_number; 88 89 /* This describes the hash function and type being enabled */ 90 u32 hashinfo; 91 92 /* The size of indirection table array */ 93 u16 indirect_tabsize; 94 95 /* The offset of the indirection table from the beginning of this 96 * structure 97 */ 98 u32 indirect_taboffset; 99 100 /* The size of the hash secret key */ 101 u16 hashkey_size; 102 103 /* The offset of the secret key from the beginning of this structure */ 104 u32 hashkey_offset; 105 106 u32 processor_masks_offset; 107 u32 num_processor_masks; 108 u32 processor_masks_entry_size; 109 }; 110 111 struct ndis_tcp_ip_checksum_info { 112 union { 113 struct { 114 u32 is_ipv4:1; 115 u32 is_ipv6:1; 116 u32 tcp_checksum:1; 117 u32 udp_checksum:1; 118 u32 ip_header_checksum:1; 119 u32 reserved:11; 120 u32 tcp_header_offset:10; 121 } transmit; 122 struct { 123 u32 tcp_checksum_failed:1; 124 u32 udp_checksum_failed:1; 125 u32 ip_checksum_failed:1; 126 u32 tcp_checksum_succeeded:1; 127 u32 udp_checksum_succeeded:1; 128 u32 ip_checksum_succeeded:1; 129 u32 loopback:1; 130 u32 tcp_checksum_value_invalid:1; 131 u32 ip_checksum_value_invalid:1; 132 } receive; 133 u32 value; 134 }; 135 }; 136 137 struct ndis_pkt_8021q_info { 138 union { 139 struct { 140 u32 pri:3; /* User Priority */ 141 u32 cfi:1; /* Canonical Format ID */ 142 u32 vlanid:12; /* VLAN ID */ 143 u32 reserved:16; 144 }; 145 u32 value; 146 }; 147 }; 148 149 /* 150 * Represent netvsc packet which contains 1 RNDIS and 1 ethernet frame 151 * within the RNDIS 152 * 153 * The size of this structure is less than 48 bytes and we can now 154 * place this structure in the skb->cb field. 155 */ 156 struct hv_netvsc_packet { 157 /* Bookkeeping stuff */ 158 u8 cp_partial; /* partial copy into send buffer */ 159 160 u8 rmsg_size; /* RNDIS header and PPI size */ 161 u8 page_buf_cnt; 162 163 u16 q_idx; 164 u16 total_packets; 165 166 u32 total_bytes; 167 u32 send_buf_index; 168 u32 total_data_buflen; 169 struct hv_dma_range *dma_range; 170 }; 171 172 #define NETVSC_HASH_KEYLEN 40 173 174 struct netvsc_device_info { 175 unsigned char mac_adr[ETH_ALEN]; 176 u32 num_chn; 177 u32 send_sections; 178 u32 recv_sections; 179 u32 send_section_size; 180 u32 recv_section_size; 181 182 struct bpf_prog *bprog; 183 184 u8 rss_key[NETVSC_HASH_KEYLEN]; 185 }; 186 187 enum rndis_device_state { 188 RNDIS_DEV_UNINITIALIZED = 0, 189 RNDIS_DEV_INITIALIZING, 190 RNDIS_DEV_INITIALIZED, 191 RNDIS_DEV_DATAINITIALIZED, 192 }; 193 194 struct rndis_device { 195 struct net_device *ndev; 196 197 enum rndis_device_state state; 198 199 atomic_t new_req_id; 200 201 spinlock_t request_lock; 202 struct list_head req_list; 203 204 struct work_struct mcast_work; 205 u32 filter; 206 207 bool link_state; /* 0 - link up, 1 - link down */ 208 209 u8 hw_mac_adr[ETH_ALEN]; 210 u8 rss_key[NETVSC_HASH_KEYLEN]; 211 }; 212 213 214 /* Interface */ 215 struct rndis_message; 216 struct ndis_offload_params; 217 struct netvsc_device; 218 struct netvsc_channel; 219 struct net_device_context; 220 221 extern u32 netvsc_ring_bytes; 222 223 struct netvsc_device *netvsc_device_add(struct hv_device *device, 224 const struct netvsc_device_info *info); 225 int netvsc_alloc_recv_comp_ring(struct netvsc_device *net_device, u32 q_idx); 226 void netvsc_device_remove(struct hv_device *device); 227 int netvsc_send(struct net_device *net, 228 struct hv_netvsc_packet *packet, 229 struct rndis_message *rndis_msg, 230 struct hv_page_buffer *page_buffer, 231 struct sk_buff *skb, 232 bool xdp_tx); 233 void netvsc_linkstatus_callback(struct net_device *net, 234 struct rndis_message *resp, 235 void *data, u32 data_buflen); 236 int netvsc_recv_callback(struct net_device *net, 237 struct netvsc_device *nvdev, 238 struct netvsc_channel *nvchan); 239 void netvsc_channel_cb(void *context); 240 int netvsc_poll(struct napi_struct *napi, int budget); 241 242 void netvsc_xdp_xmit(struct sk_buff *skb, struct net_device *ndev); 243 u32 netvsc_run_xdp(struct net_device *ndev, struct netvsc_channel *nvchan, 244 struct xdp_buff *xdp); 245 unsigned int netvsc_xdp_fraglen(unsigned int len); 246 struct bpf_prog *netvsc_xdp_get(struct netvsc_device *nvdev); 247 int netvsc_xdp_set(struct net_device *dev, struct bpf_prog *prog, 248 struct netlink_ext_ack *extack, 249 struct netvsc_device *nvdev); 250 int netvsc_vf_setxdp(struct net_device *vf_netdev, struct bpf_prog *prog); 251 int netvsc_bpf(struct net_device *dev, struct netdev_bpf *bpf); 252 int netvsc_ndoxdp_xmit(struct net_device *ndev, int n, 253 struct xdp_frame **frames, u32 flags); 254 255 int rndis_set_subchannel(struct net_device *ndev, 256 struct netvsc_device *nvdev, 257 struct netvsc_device_info *dev_info); 258 int rndis_filter_open(struct netvsc_device *nvdev); 259 int rndis_filter_close(struct netvsc_device *nvdev); 260 struct netvsc_device *rndis_filter_device_add(struct hv_device *dev, 261 struct netvsc_device_info *info); 262 void rndis_filter_update(struct netvsc_device *nvdev); 263 void rndis_filter_device_remove(struct hv_device *dev, 264 struct netvsc_device *nvdev); 265 int rndis_filter_set_rss_param(struct rndis_device *rdev, 266 const u8 *key); 267 int rndis_filter_set_offload_params(struct net_device *ndev, 268 struct netvsc_device *nvdev, 269 struct ndis_offload_params *req_offloads); 270 int rndis_filter_receive(struct net_device *ndev, 271 struct netvsc_device *net_dev, 272 struct netvsc_channel *nvchan, 273 void *data, u32 buflen); 274 275 int rndis_filter_set_device_mac(struct netvsc_device *ndev, 276 const char *mac); 277 278 int netvsc_switch_datapath(struct net_device *nv_dev, bool vf); 279 280 #define NVSP_INVALID_PROTOCOL_VERSION ((u32)0xFFFFFFFF) 281 282 #define NVSP_PROTOCOL_VERSION_1 2 283 #define NVSP_PROTOCOL_VERSION_2 0x30002 284 #define NVSP_PROTOCOL_VERSION_4 0x40000 285 #define NVSP_PROTOCOL_VERSION_5 0x50000 286 #define NVSP_PROTOCOL_VERSION_6 0x60000 287 #define NVSP_PROTOCOL_VERSION_61 0x60001 288 289 enum { 290 NVSP_MSG_TYPE_NONE = 0, 291 292 /* Init Messages */ 293 NVSP_MSG_TYPE_INIT = 1, 294 NVSP_MSG_TYPE_INIT_COMPLETE = 2, 295 296 NVSP_VERSION_MSG_START = 100, 297 298 /* Version 1 Messages */ 299 NVSP_MSG1_TYPE_SEND_NDIS_VER = NVSP_VERSION_MSG_START, 300 301 NVSP_MSG1_TYPE_SEND_RECV_BUF, 302 NVSP_MSG1_TYPE_SEND_RECV_BUF_COMPLETE, 303 NVSP_MSG1_TYPE_REVOKE_RECV_BUF, 304 305 NVSP_MSG1_TYPE_SEND_SEND_BUF, 306 NVSP_MSG1_TYPE_SEND_SEND_BUF_COMPLETE, 307 NVSP_MSG1_TYPE_REVOKE_SEND_BUF, 308 309 NVSP_MSG1_TYPE_SEND_RNDIS_PKT, 310 NVSP_MSG1_TYPE_SEND_RNDIS_PKT_COMPLETE, 311 312 /* Version 2 messages */ 313 NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF, 314 NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF_COMP, 315 NVSP_MSG2_TYPE_REVOKE_CHIMNEY_DELEGATED_BUF, 316 317 NVSP_MSG2_TYPE_RESUME_CHIMNEY_RX_INDICATION, 318 319 NVSP_MSG2_TYPE_TERMINATE_CHIMNEY, 320 NVSP_MSG2_TYPE_TERMINATE_CHIMNEY_COMP, 321 322 NVSP_MSG2_TYPE_INDICATE_CHIMNEY_EVENT, 323 324 NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT, 325 NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT_COMP, 326 327 NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ, 328 NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ_COMP, 329 330 NVSP_MSG2_TYPE_ALLOC_RXBUF, 331 NVSP_MSG2_TYPE_ALLOC_RXBUF_COMP, 332 333 NVSP_MSG2_TYPE_FREE_RXBUF, 334 335 NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT, 336 NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT_COMP, 337 338 NVSP_MSG2_TYPE_SEND_NDIS_CONFIG, 339 340 NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE, 341 NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP, 342 343 NVSP_MSG2_MAX = NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP, 344 345 /* Version 4 messages */ 346 NVSP_MSG4_TYPE_SEND_VF_ASSOCIATION, 347 NVSP_MSG4_TYPE_SWITCH_DATA_PATH, 348 NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED, 349 350 NVSP_MSG4_MAX = NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED, 351 352 /* Version 5 messages */ 353 NVSP_MSG5_TYPE_OID_QUERY_EX, 354 NVSP_MSG5_TYPE_OID_QUERY_EX_COMP, 355 NVSP_MSG5_TYPE_SUBCHANNEL, 356 NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE, 357 358 NVSP_MSG5_MAX = NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE, 359 360 /* Version 6 messages */ 361 NVSP_MSG6_TYPE_PD_API, 362 NVSP_MSG6_TYPE_PD_POST_BATCH, 363 364 NVSP_MSG6_MAX = NVSP_MSG6_TYPE_PD_POST_BATCH 365 }; 366 367 enum { 368 NVSP_STAT_NONE = 0, 369 NVSP_STAT_SUCCESS, 370 NVSP_STAT_FAIL, 371 NVSP_STAT_PROTOCOL_TOO_NEW, 372 NVSP_STAT_PROTOCOL_TOO_OLD, 373 NVSP_STAT_INVALID_RNDIS_PKT, 374 NVSP_STAT_BUSY, 375 NVSP_STAT_PROTOCOL_UNSUPPORTED, 376 NVSP_STAT_MAX, 377 }; 378 379 struct nvsp_message_header { 380 u32 msg_type; 381 }; 382 383 /* Init Messages */ 384 385 /* 386 * This message is used by the VSC to initialize the channel after the channels 387 * has been opened. This message should never include anything other then 388 * versioning (i.e. this message will be the same for ever). 389 */ 390 struct nvsp_message_init { 391 u32 min_protocol_ver; 392 u32 max_protocol_ver; 393 } __packed; 394 395 /* 396 * This message is used by the VSP to complete the initialization of the 397 * channel. This message should never include anything other then versioning 398 * (i.e. this message will be the same for ever). 399 */ 400 struct nvsp_message_init_complete { 401 u32 negotiated_protocol_ver; 402 u32 max_mdl_chain_len; 403 u32 status; 404 } __packed; 405 406 union nvsp_message_init_uber { 407 struct nvsp_message_init init; 408 struct nvsp_message_init_complete init_complete; 409 } __packed; 410 411 /* Version 1 Messages */ 412 413 /* 414 * This message is used by the VSC to send the NDIS version to the VSP. The VSP 415 * can use this information when handling OIDs sent by the VSC. 416 */ 417 struct nvsp_1_message_send_ndis_version { 418 u32 ndis_major_ver; 419 u32 ndis_minor_ver; 420 } __packed; 421 422 /* 423 * This message is used by the VSC to send a receive buffer to the VSP. The VSP 424 * can then use the receive buffer to send data to the VSC. 425 */ 426 struct nvsp_1_message_send_receive_buffer { 427 u32 gpadl_handle; 428 u16 id; 429 } __packed; 430 431 struct nvsp_1_receive_buffer_section { 432 u32 offset; 433 u32 sub_alloc_size; 434 u32 num_sub_allocs; 435 u32 end_offset; 436 } __packed; 437 438 /* 439 * This message is used by the VSP to acknowledge a receive buffer send by the 440 * VSC. This message must be sent by the VSP before the VSP uses the receive 441 * buffer. 442 */ 443 struct nvsp_1_message_send_receive_buffer_complete { 444 u32 status; 445 u32 num_sections; 446 447 /* 448 * The receive buffer is split into two parts, a large suballocation 449 * section and a small suballocation section. These sections are then 450 * suballocated by a certain size. 451 */ 452 453 /* 454 * For example, the following break up of the receive buffer has 6 455 * large suballocations and 10 small suballocations. 456 */ 457 458 /* 459 * | Large Section | | Small Section | 460 * ------------------------------------------------------------ 461 * | | | | | | | | | | | | | | | | | | 462 * | | 463 * LargeOffset SmallOffset 464 */ 465 466 struct nvsp_1_receive_buffer_section sections[]; 467 } __packed; 468 469 /* 470 * This message is sent by the VSC to revoke the receive buffer. After the VSP 471 * completes this transaction, the vsp should never use the receive buffer 472 * again. 473 */ 474 struct nvsp_1_message_revoke_receive_buffer { 475 u16 id; 476 }; 477 478 /* 479 * This message is used by the VSC to send a send buffer to the VSP. The VSC 480 * can then use the send buffer to send data to the VSP. 481 */ 482 struct nvsp_1_message_send_send_buffer { 483 u32 gpadl_handle; 484 u16 id; 485 } __packed; 486 487 /* 488 * This message is used by the VSP to acknowledge a send buffer sent by the 489 * VSC. This message must be sent by the VSP before the VSP uses the sent 490 * buffer. 491 */ 492 struct nvsp_1_message_send_send_buffer_complete { 493 u32 status; 494 495 /* 496 * The VSC gets to choose the size of the send buffer and the VSP gets 497 * to choose the sections size of the buffer. This was done to enable 498 * dynamic reconfigurations when the cost of GPA-direct buffers 499 * decreases. 500 */ 501 u32 section_size; 502 } __packed; 503 504 /* 505 * This message is sent by the VSC to revoke the send buffer. After the VSP 506 * completes this transaction, the vsp should never use the send buffer again. 507 */ 508 struct nvsp_1_message_revoke_send_buffer { 509 u16 id; 510 }; 511 512 /* 513 * This message is used by both the VSP and the VSC to send a RNDIS message to 514 * the opposite channel endpoint. 515 */ 516 struct nvsp_1_message_send_rndis_packet { 517 /* 518 * This field is specified by RNDIS. They assume there's two different 519 * channels of communication. However, the Network VSP only has one. 520 * Therefore, the channel travels with the RNDIS packet. 521 */ 522 u32 channel_type; 523 524 /* 525 * This field is used to send part or all of the data through a send 526 * buffer. This values specifies an index into the send buffer. If the 527 * index is 0xFFFFFFFF, then the send buffer is not being used and all 528 * of the data was sent through other VMBus mechanisms. 529 */ 530 u32 send_buf_section_index; 531 u32 send_buf_section_size; 532 } __packed; 533 534 /* 535 * This message is used by both the VSP and the VSC to complete a RNDIS message 536 * to the opposite channel endpoint. At this point, the initiator of this 537 * message cannot use any resources associated with the original RNDIS packet. 538 */ 539 struct nvsp_1_message_send_rndis_packet_complete { 540 u32 status; 541 }; 542 543 union nvsp_1_message_uber { 544 struct nvsp_1_message_send_ndis_version send_ndis_ver; 545 546 struct nvsp_1_message_send_receive_buffer send_recv_buf; 547 struct nvsp_1_message_send_receive_buffer_complete 548 send_recv_buf_complete; 549 struct nvsp_1_message_revoke_receive_buffer revoke_recv_buf; 550 551 struct nvsp_1_message_send_send_buffer send_send_buf; 552 struct nvsp_1_message_send_send_buffer_complete send_send_buf_complete; 553 struct nvsp_1_message_revoke_send_buffer revoke_send_buf; 554 555 struct nvsp_1_message_send_rndis_packet send_rndis_pkt; 556 struct nvsp_1_message_send_rndis_packet_complete 557 send_rndis_pkt_complete; 558 } __packed; 559 560 561 /* 562 * Network VSP protocol version 2 messages: 563 */ 564 struct nvsp_2_vsc_capability { 565 union { 566 u64 data; 567 struct { 568 u64 vmq:1; 569 u64 chimney:1; 570 u64 sriov:1; 571 u64 ieee8021q:1; 572 u64 correlation_id:1; 573 u64 teaming:1; 574 u64 vsubnetid:1; 575 u64 rsc:1; 576 }; 577 }; 578 } __packed; 579 580 struct nvsp_2_send_ndis_config { 581 u32 mtu; 582 u32 reserved; 583 struct nvsp_2_vsc_capability capability; 584 } __packed; 585 586 /* Allocate receive buffer */ 587 struct nvsp_2_alloc_rxbuf { 588 /* Allocation ID to match the allocation request and response */ 589 u32 alloc_id; 590 591 /* Length of the VM shared memory receive buffer that needs to 592 * be allocated 593 */ 594 u32 len; 595 } __packed; 596 597 /* Allocate receive buffer complete */ 598 struct nvsp_2_alloc_rxbuf_comp { 599 /* The NDIS_STATUS code for buffer allocation */ 600 u32 status; 601 602 u32 alloc_id; 603 604 /* GPADL handle for the allocated receive buffer */ 605 u32 gpadl_handle; 606 607 /* Receive buffer ID */ 608 u64 recv_buf_id; 609 } __packed; 610 611 struct nvsp_2_free_rxbuf { 612 u64 recv_buf_id; 613 } __packed; 614 615 union nvsp_2_message_uber { 616 struct nvsp_2_send_ndis_config send_ndis_config; 617 struct nvsp_2_alloc_rxbuf alloc_rxbuf; 618 struct nvsp_2_alloc_rxbuf_comp alloc_rxbuf_comp; 619 struct nvsp_2_free_rxbuf free_rxbuf; 620 } __packed; 621 622 struct nvsp_4_send_vf_association { 623 /* 1: allocated, serial number is valid. 0: not allocated */ 624 u32 allocated; 625 626 /* Serial number of the VF to team with */ 627 u32 serial; 628 } __packed; 629 630 enum nvsp_vm_datapath { 631 NVSP_DATAPATH_SYNTHETIC = 0, 632 NVSP_DATAPATH_VF, 633 NVSP_DATAPATH_MAX 634 }; 635 636 struct nvsp_4_sw_datapath { 637 u32 active_datapath; /* active data path in VM */ 638 } __packed; 639 640 union nvsp_4_message_uber { 641 struct nvsp_4_send_vf_association vf_assoc; 642 struct nvsp_4_sw_datapath active_dp; 643 } __packed; 644 645 enum nvsp_subchannel_operation { 646 NVSP_SUBCHANNEL_NONE = 0, 647 NVSP_SUBCHANNEL_ALLOCATE, 648 NVSP_SUBCHANNEL_MAX 649 }; 650 651 struct nvsp_5_subchannel_request { 652 u32 op; 653 u32 num_subchannels; 654 } __packed; 655 656 struct nvsp_5_subchannel_complete { 657 u32 status; 658 u32 num_subchannels; /* Actual number of subchannels allocated */ 659 } __packed; 660 661 struct nvsp_5_send_indirect_table { 662 /* The number of entries in the send indirection table */ 663 u32 count; 664 665 /* The offset of the send indirection table from the beginning of 666 * struct nvsp_message. 667 * The send indirection table tells which channel to put the send 668 * traffic on. Each entry is a channel number. 669 */ 670 u32 offset; 671 } __packed; 672 673 union nvsp_5_message_uber { 674 struct nvsp_5_subchannel_request subchn_req; 675 struct nvsp_5_subchannel_complete subchn_comp; 676 struct nvsp_5_send_indirect_table send_table; 677 } __packed; 678 679 enum nvsp_6_pd_api_op { 680 PD_API_OP_CONFIG = 1, 681 PD_API_OP_SW_DATAPATH, /* Switch Datapath */ 682 PD_API_OP_OPEN_PROVIDER, 683 PD_API_OP_CLOSE_PROVIDER, 684 PD_API_OP_CREATE_QUEUE, 685 PD_API_OP_FLUSH_QUEUE, 686 PD_API_OP_FREE_QUEUE, 687 PD_API_OP_ALLOC_COM_BUF, /* Allocate Common Buffer */ 688 PD_API_OP_FREE_COM_BUF, /* Free Common Buffer */ 689 PD_API_OP_MAX 690 }; 691 692 struct grp_affinity { 693 u64 mask; 694 u16 grp; 695 u16 reserved[3]; 696 } __packed; 697 698 struct nvsp_6_pd_api_req { 699 u32 op; 700 701 union { 702 /* MMIO information is sent from the VM to VSP */ 703 struct __packed { 704 u64 mmio_pa; /* MMIO Physical Address */ 705 u32 mmio_len; 706 707 /* Number of PD queues a VM can support */ 708 u16 num_subchn; 709 } config; 710 711 /* Switch Datapath */ 712 struct __packed { 713 /* Host Datapath Is PacketDirect */ 714 u8 host_dpath_is_pd; 715 716 /* Guest PacketDirect Is Enabled */ 717 u8 guest_pd_enabled; 718 } sw_dpath; 719 720 /* Open Provider*/ 721 struct __packed { 722 u32 prov_id; /* Provider id */ 723 u32 flag; 724 } open_prov; 725 726 /* Close Provider */ 727 struct __packed { 728 u32 prov_id; 729 } cls_prov; 730 731 /* Create Queue*/ 732 struct __packed { 733 u32 prov_id; 734 u16 q_id; 735 u16 q_size; 736 u8 is_recv_q; 737 u8 is_rss_q; 738 u32 recv_data_len; 739 struct grp_affinity affy; 740 } cr_q; 741 742 /* Delete Queue*/ 743 struct __packed { 744 u32 prov_id; 745 u16 q_id; 746 } del_q; 747 748 /* Flush Queue */ 749 struct __packed { 750 u32 prov_id; 751 u16 q_id; 752 } flush_q; 753 754 /* Allocate Common Buffer */ 755 struct __packed { 756 u32 len; 757 u32 pf_node; /* Preferred Node */ 758 u16 region_id; 759 } alloc_com_buf; 760 761 /* Free Common Buffer */ 762 struct __packed { 763 u32 len; 764 u64 pa; /* Physical Address */ 765 u32 pf_node; /* Preferred Node */ 766 u16 region_id; 767 u8 cache_type; 768 } free_com_buf; 769 } __packed; 770 } __packed; 771 772 struct nvsp_6_pd_api_comp { 773 u32 op; 774 u32 status; 775 776 union { 777 struct __packed { 778 /* actual number of PD queues allocated to the VM */ 779 u16 num_pd_q; 780 781 /* Num Receive Rss PD Queues */ 782 u8 num_rss_q; 783 784 u8 is_supported; /* Is supported by VSP */ 785 u8 is_enabled; /* Is enabled by VSP */ 786 } config; 787 788 /* Open Provider */ 789 struct __packed { 790 u32 prov_id; 791 } open_prov; 792 793 /* Create Queue */ 794 struct __packed { 795 u32 prov_id; 796 u16 q_id; 797 u16 q_size; 798 u32 recv_data_len; 799 struct grp_affinity affy; 800 } cr_q; 801 802 /* Allocate Common Buffer */ 803 struct __packed { 804 u64 pa; /* Physical Address */ 805 u32 len; 806 u32 pf_node; /* Preferred Node */ 807 u16 region_id; 808 u8 cache_type; 809 } alloc_com_buf; 810 } __packed; 811 } __packed; 812 813 struct nvsp_6_pd_buf { 814 u32 region_offset; 815 u16 region_id; 816 u16 is_partial:1; 817 u16 reserved:15; 818 } __packed; 819 820 struct nvsp_6_pd_batch_msg { 821 struct nvsp_message_header hdr; 822 u16 count; 823 u16 guest2host:1; 824 u16 is_recv:1; 825 u16 reserved:14; 826 struct nvsp_6_pd_buf pd_buf[0]; 827 } __packed; 828 829 union nvsp_6_message_uber { 830 struct nvsp_6_pd_api_req pd_req; 831 struct nvsp_6_pd_api_comp pd_comp; 832 } __packed; 833 834 union nvsp_all_messages { 835 union nvsp_message_init_uber init_msg; 836 union nvsp_1_message_uber v1_msg; 837 union nvsp_2_message_uber v2_msg; 838 union nvsp_4_message_uber v4_msg; 839 union nvsp_5_message_uber v5_msg; 840 union nvsp_6_message_uber v6_msg; 841 } __packed; 842 843 /* ALL Messages */ 844 struct nvsp_message { 845 struct nvsp_message_header hdr; 846 union nvsp_all_messages msg; 847 } __packed; 848 849 850 #define NETVSC_MTU 65535 851 #define NETVSC_MTU_MIN ETH_MIN_MTU 852 853 /* Max buffer sizes allowed by a host */ 854 #define NETVSC_RECEIVE_BUFFER_SIZE (1024 * 1024 * 31) /* 31MB */ 855 #define NETVSC_RECEIVE_BUFFER_SIZE_LEGACY (1024 * 1024 * 15) /* 15MB */ 856 #define NETVSC_RECEIVE_BUFFER_DEFAULT (1024 * 1024 * 16) 857 858 #define NETVSC_SEND_BUFFER_SIZE (1024 * 1024 * 15) /* 15MB */ 859 #define NETVSC_SEND_BUFFER_DEFAULT (1024 * 1024) 860 861 #define NETVSC_INVALID_INDEX -1 862 863 #define NETVSC_SEND_SECTION_SIZE 6144 864 #define NETVSC_RECV_SECTION_SIZE 1728 865 866 /* Default size of TX buf: 1MB, RX buf: 16MB */ 867 #define NETVSC_MIN_TX_SECTIONS 10 868 #define NETVSC_DEFAULT_TX (NETVSC_SEND_BUFFER_DEFAULT \ 869 / NETVSC_SEND_SECTION_SIZE) 870 #define NETVSC_MIN_RX_SECTIONS 10 871 #define NETVSC_DEFAULT_RX (NETVSC_RECEIVE_BUFFER_DEFAULT \ 872 / NETVSC_RECV_SECTION_SIZE) 873 874 #define NETVSC_RECEIVE_BUFFER_ID 0xcafe 875 #define NETVSC_SEND_BUFFER_ID 0 876 877 #define NETVSC_SUPPORTED_HW_FEATURES (NETIF_F_RXCSUM | NETIF_F_IP_CSUM | \ 878 NETIF_F_TSO | NETIF_F_IPV6_CSUM | \ 879 NETIF_F_TSO6 | NETIF_F_LRO | \ 880 NETIF_F_SG | NETIF_F_RXHASH) 881 882 #define VRSS_SEND_TAB_SIZE 16 /* must be power of 2 */ 883 #define VRSS_CHANNEL_MAX 64 884 #define VRSS_CHANNEL_DEFAULT 16 885 886 #define RNDIS_MAX_PKT_DEFAULT 8 887 #define RNDIS_PKT_ALIGN_DEFAULT 8 888 889 #define NETVSC_XDP_HDRM 256 890 891 #define NETVSC_MIN_OUT_MSG_SIZE (sizeof(struct vmpacket_descriptor) + \ 892 sizeof(struct nvsp_message)) 893 #define NETVSC_MIN_IN_MSG_SIZE sizeof(struct vmpacket_descriptor) 894 895 /* Maximum # of contiguous data ranges that can make up a trasmitted packet. 896 * Typically it's the max SKB fragments plus 2 for the rndis packet and the 897 * linear portion of the SKB. But if MAX_SKB_FRAGS is large, the value may 898 * need to be limited to MAX_PAGE_BUFFER_COUNT, which is the max # of entries 899 * in a GPA direct packet sent to netvsp over VMBus. 900 */ 901 #if MAX_SKB_FRAGS + 2 < MAX_PAGE_BUFFER_COUNT 902 #define MAX_DATA_RANGES (MAX_SKB_FRAGS + 2) 903 #else 904 #define MAX_DATA_RANGES MAX_PAGE_BUFFER_COUNT 905 #endif 906 907 /* Estimated requestor size: 908 * out_ring_size/min_out_msg_size + in_ring_size/min_in_msg_size 909 */ 910 static inline u32 netvsc_rqstor_size(unsigned long ringbytes) 911 { 912 return ringbytes / NETVSC_MIN_OUT_MSG_SIZE + 913 ringbytes / NETVSC_MIN_IN_MSG_SIZE; 914 } 915 916 /* XFER PAGE packets can specify a maximum of 375 ranges for NDIS >= 6.0 917 * and a maximum of 64 ranges for NDIS < 6.0 with no RSC; with RSC, this 918 * limit is raised to 562 (= NVSP_RSC_MAX). 919 */ 920 #define NETVSC_MAX_XFER_PAGE_RANGES NVSP_RSC_MAX 921 #define NETVSC_XFER_HEADER_SIZE(rng_cnt) \ 922 (offsetof(struct vmtransfer_page_packet_header, ranges) + \ 923 (rng_cnt) * sizeof(struct vmtransfer_page_range)) 924 #define NETVSC_MAX_PKT_SIZE (NETVSC_XFER_HEADER_SIZE(NETVSC_MAX_XFER_PAGE_RANGES) + \ 925 sizeof(struct nvsp_message) + (sizeof(u32) * VRSS_SEND_TAB_SIZE)) 926 927 struct multi_send_data { 928 struct sk_buff *skb; /* skb containing the pkt */ 929 struct hv_netvsc_packet *pkt; /* netvsc pkt pending */ 930 u32 count; /* counter of batched packets */ 931 }; 932 933 struct recv_comp_data { 934 u64 tid; /* transaction id */ 935 u32 status; 936 }; 937 938 struct multi_recv_comp { 939 struct recv_comp_data *slots; 940 u32 first; /* first data entry */ 941 u32 next; /* next entry for writing */ 942 }; 943 944 #define NVSP_RSC_MAX 562 /* Max #RSC frags in a vmbus xfer page pkt */ 945 946 struct nvsc_rsc { 947 struct ndis_pkt_8021q_info vlan; 948 struct ndis_tcp_ip_checksum_info csum_info; 949 u32 hash_info; 950 u8 ppi_flags; /* valid/present bits for the above PPIs */ 951 u8 is_last; /* last RNDIS msg in a vmtransfer_page */ 952 u32 cnt; /* #fragments in an RSC packet */ 953 u32 pktlen; /* Full packet length */ 954 void *data[NVSP_RSC_MAX]; 955 u32 len[NVSP_RSC_MAX]; 956 }; 957 958 #define NVSC_RSC_VLAN BIT(0) /* valid/present bit for 'vlan' */ 959 #define NVSC_RSC_CSUM_INFO BIT(1) /* valid/present bit for 'csum_info' */ 960 #define NVSC_RSC_HASH_INFO BIT(2) /* valid/present bit for 'hash_info' */ 961 962 struct netvsc_stats_tx { 963 u64 packets; 964 u64 bytes; 965 u64 xdp_xmit; 966 struct u64_stats_sync syncp; 967 }; 968 969 struct netvsc_stats_rx { 970 u64 packets; 971 u64 bytes; 972 u64 broadcast; 973 u64 multicast; 974 u64 xdp_drop; 975 u64 xdp_redirect; 976 u64 xdp_tx; 977 struct u64_stats_sync syncp; 978 }; 979 980 struct netvsc_ethtool_stats { 981 unsigned long tx_scattered; 982 unsigned long tx_no_memory; 983 unsigned long tx_no_space; 984 unsigned long tx_too_big; 985 unsigned long tx_busy; 986 unsigned long tx_send_full; 987 unsigned long rx_comp_busy; 988 unsigned long rx_no_memory; 989 unsigned long stop_queue; 990 unsigned long wake_queue; 991 unsigned long vlan_error; 992 }; 993 994 struct netvsc_ethtool_pcpu_stats { 995 u64 rx_packets; 996 u64 rx_bytes; 997 u64 tx_packets; 998 u64 tx_bytes; 999 u64 vf_rx_packets; 1000 u64 vf_rx_bytes; 1001 u64 vf_tx_packets; 1002 u64 vf_tx_bytes; 1003 }; 1004 1005 struct netvsc_vf_pcpu_stats { 1006 u64 rx_packets; 1007 u64 rx_bytes; 1008 u64 tx_packets; 1009 u64 tx_bytes; 1010 struct u64_stats_sync syncp; 1011 u32 tx_dropped; 1012 }; 1013 1014 struct netvsc_reconfig { 1015 struct list_head list; 1016 u32 event; 1017 }; 1018 1019 /* L4 hash bits for different protocols */ 1020 #define HV_TCP4_L4HASH 1 1021 #define HV_TCP6_L4HASH 2 1022 #define HV_UDP4_L4HASH 4 1023 #define HV_UDP6_L4HASH 8 1024 #define HV_DEFAULT_L4HASH (HV_TCP4_L4HASH | HV_TCP6_L4HASH | HV_UDP4_L4HASH | \ 1025 HV_UDP6_L4HASH) 1026 1027 /* The context of the netvsc device */ 1028 struct net_device_context { 1029 /* point back to our device context */ 1030 struct hv_device *device_ctx; 1031 /* netvsc_device */ 1032 struct netvsc_device __rcu *nvdev; 1033 /* list of netvsc net_devices */ 1034 struct list_head list; 1035 /* reconfigure work */ 1036 struct delayed_work dwork; 1037 /* last reconfig time */ 1038 unsigned long last_reconfig; 1039 /* reconfig events */ 1040 struct list_head reconfig_events; 1041 /* list protection */ 1042 spinlock_t lock; 1043 1044 u32 msg_enable; /* debug level */ 1045 1046 u32 tx_checksum_mask; 1047 1048 u32 tx_table[VRSS_SEND_TAB_SIZE]; 1049 1050 u16 *rx_table; 1051 1052 u32 rx_table_sz; 1053 1054 /* Ethtool settings */ 1055 u8 duplex; 1056 u32 speed; 1057 u32 l4_hash; /* L4 hash settings */ 1058 struct netvsc_ethtool_stats eth_stats; 1059 1060 /* State to manage the associated VF interface. */ 1061 struct net_device __rcu *vf_netdev; 1062 struct netvsc_vf_pcpu_stats __percpu *vf_stats; 1063 struct delayed_work vf_takeover; 1064 1065 /* 1: allocated, serial number is valid. 0: not allocated */ 1066 u32 vf_alloc; 1067 /* Serial number of the VF to team with */ 1068 u32 vf_serial; 1069 /* completion variable to confirm vf association */ 1070 struct completion vf_add; 1071 /* Is the current data path through the VF NIC? */ 1072 bool data_path_is_vf; 1073 1074 /* Used to temporarily save the config info across hibernation */ 1075 struct netvsc_device_info *saved_netvsc_dev_info; 1076 }; 1077 1078 /* Azure hosts don't support non-TCP port numbers in hashing for fragmented 1079 * packets. We can use ethtool to change UDP hash level when necessary. 1080 */ 1081 static inline u32 netvsc_get_hash(struct sk_buff *skb, 1082 const struct net_device_context *ndc) 1083 { 1084 struct flow_keys flow; 1085 u32 hash, pkt_proto = 0; 1086 static u32 hashrnd __read_mostly; 1087 1088 net_get_random_once(&hashrnd, sizeof(hashrnd)); 1089 1090 if (!skb_flow_dissect_flow_keys(skb, &flow, 0)) 1091 return 0; 1092 1093 switch (flow.basic.ip_proto) { 1094 case IPPROTO_TCP: 1095 if (flow.basic.n_proto == htons(ETH_P_IP)) 1096 pkt_proto = HV_TCP4_L4HASH; 1097 else if (flow.basic.n_proto == htons(ETH_P_IPV6)) 1098 pkt_proto = HV_TCP6_L4HASH; 1099 1100 break; 1101 1102 case IPPROTO_UDP: 1103 if (flow.basic.n_proto == htons(ETH_P_IP)) 1104 pkt_proto = HV_UDP4_L4HASH; 1105 else if (flow.basic.n_proto == htons(ETH_P_IPV6)) 1106 pkt_proto = HV_UDP6_L4HASH; 1107 1108 break; 1109 } 1110 1111 if (pkt_proto & ndc->l4_hash) { 1112 return skb_get_hash(skb); 1113 } else { 1114 if (flow.basic.n_proto == htons(ETH_P_IP)) 1115 hash = jhash2((u32 *)&flow.addrs.v4addrs, 2, hashrnd); 1116 else if (flow.basic.n_proto == htons(ETH_P_IPV6)) 1117 hash = jhash2((u32 *)&flow.addrs.v6addrs, 8, hashrnd); 1118 else 1119 return 0; 1120 1121 __skb_set_sw_hash(skb, hash, false); 1122 } 1123 1124 return hash; 1125 } 1126 1127 /* Per channel data */ 1128 struct netvsc_channel { 1129 struct vmbus_channel *channel; 1130 struct netvsc_device *net_device; 1131 void *recv_buf; /* buffer to copy packets out from the receive buffer */ 1132 const struct vmpacket_descriptor *desc; 1133 struct napi_struct napi; 1134 struct multi_send_data msd; 1135 struct multi_recv_comp mrc; 1136 atomic_t queue_sends; 1137 struct nvsc_rsc rsc; 1138 1139 struct bpf_prog __rcu *bpf_prog; 1140 struct xdp_rxq_info xdp_rxq; 1141 bool xdp_flush; 1142 1143 struct netvsc_stats_tx tx_stats; 1144 struct netvsc_stats_rx rx_stats; 1145 }; 1146 1147 /* Per netvsc device */ 1148 struct netvsc_device { 1149 u32 nvsp_version; 1150 1151 wait_queue_head_t wait_drain; 1152 bool destroy; 1153 bool tx_disable; /* if true, do not wake up queue again */ 1154 1155 /* Receive buffer allocated by us but manages by NetVSP */ 1156 void *recv_buf; 1157 u32 recv_buf_size; /* allocated bytes */ 1158 struct vmbus_gpadl recv_buf_gpadl_handle; 1159 u32 recv_section_cnt; 1160 u32 recv_section_size; 1161 u32 recv_completion_cnt; 1162 1163 /* Send buffer allocated by us */ 1164 void *send_buf; 1165 u32 send_buf_size; 1166 struct vmbus_gpadl send_buf_gpadl_handle; 1167 u32 send_section_cnt; 1168 u32 send_section_size; 1169 unsigned long *send_section_map; 1170 1171 /* Used for NetVSP initialization protocol */ 1172 struct completion channel_init_wait; 1173 struct nvsp_message channel_init_pkt; 1174 1175 struct nvsp_message revoke_packet; 1176 1177 u32 max_chn; 1178 u32 num_chn; 1179 1180 u32 netvsc_gso_max_size; 1181 1182 atomic_t open_chn; 1183 struct work_struct subchan_work; 1184 wait_queue_head_t subchan_open; 1185 1186 struct rndis_device *extension; 1187 1188 u32 max_pkt; /* max number of pkt in one send, e.g. 8 */ 1189 u32 pkt_align; /* alignment bytes, e.g. 8 */ 1190 1191 struct netvsc_channel chan_table[VRSS_CHANNEL_MAX]; 1192 1193 struct rcu_head rcu; 1194 }; 1195 1196 /* NdisInitialize message */ 1197 struct rndis_initialize_request { 1198 u32 req_id; 1199 u32 major_ver; 1200 u32 minor_ver; 1201 u32 max_xfer_size; 1202 }; 1203 1204 /* Response to NdisInitialize */ 1205 struct rndis_initialize_complete { 1206 u32 req_id; 1207 u32 status; 1208 u32 major_ver; 1209 u32 minor_ver; 1210 u32 dev_flags; 1211 u32 medium; 1212 u32 max_pkt_per_msg; 1213 u32 max_xfer_size; 1214 u32 pkt_alignment_factor; 1215 u32 af_list_offset; 1216 u32 af_list_size; 1217 }; 1218 1219 /* Call manager devices only: Information about an address family */ 1220 /* supported by the device is appended to the response to NdisInitialize. */ 1221 struct rndis_co_address_family { 1222 u32 address_family; 1223 u32 major_ver; 1224 u32 minor_ver; 1225 }; 1226 1227 /* NdisHalt message */ 1228 struct rndis_halt_request { 1229 u32 req_id; 1230 }; 1231 1232 /* NdisQueryRequest message */ 1233 struct rndis_query_request { 1234 u32 req_id; 1235 u32 oid; 1236 u32 info_buflen; 1237 u32 info_buf_offset; 1238 u32 dev_vc_handle; 1239 }; 1240 1241 /* Response to NdisQueryRequest */ 1242 struct rndis_query_complete { 1243 u32 req_id; 1244 u32 status; 1245 u32 info_buflen; 1246 u32 info_buf_offset; 1247 }; 1248 1249 /* NdisSetRequest message */ 1250 struct rndis_set_request { 1251 u32 req_id; 1252 u32 oid; 1253 u32 info_buflen; 1254 u32 info_buf_offset; 1255 u32 dev_vc_handle; 1256 u8 info_buf[]; 1257 }; 1258 1259 /* Response to NdisSetRequest */ 1260 struct rndis_set_complete { 1261 u32 req_id; 1262 u32 status; 1263 }; 1264 1265 /* NdisReset message */ 1266 struct rndis_reset_request { 1267 u32 reserved; 1268 }; 1269 1270 /* Response to NdisReset */ 1271 struct rndis_reset_complete { 1272 u32 status; 1273 u32 addressing_reset; 1274 }; 1275 1276 /* NdisMIndicateStatus message */ 1277 struct rndis_indicate_status { 1278 u32 status; 1279 u32 status_buflen; 1280 u32 status_buf_offset; 1281 }; 1282 1283 /* Diagnostic information passed as the status buffer in */ 1284 /* struct rndis_indicate_status messages signifying error conditions. */ 1285 struct rndis_diagnostic_info { 1286 u32 diag_status; 1287 u32 error_offset; 1288 }; 1289 1290 /* NdisKeepAlive message */ 1291 struct rndis_keepalive_request { 1292 u32 req_id; 1293 }; 1294 1295 /* Response to NdisKeepAlive */ 1296 struct rndis_keepalive_complete { 1297 u32 req_id; 1298 u32 status; 1299 }; 1300 1301 /* 1302 * Data message. All Offset fields contain byte offsets from the beginning of 1303 * struct rndis_packet. All Length fields are in bytes. VcHandle is set 1304 * to 0 for connectionless data, otherwise it contains the VC handle. 1305 */ 1306 struct rndis_packet { 1307 u32 data_offset; 1308 u32 data_len; 1309 u32 oob_data_offset; 1310 u32 oob_data_len; 1311 u32 num_oob_data_elements; 1312 u32 per_pkt_info_offset; 1313 u32 per_pkt_info_len; 1314 u32 vc_handle; 1315 u32 reserved; 1316 }; 1317 1318 /* Optional Out of Band data associated with a Data message. */ 1319 struct rndis_oobd { 1320 u32 size; 1321 u32 type; 1322 u32 class_info_offset; 1323 }; 1324 1325 /* Packet extension field contents associated with a Data message. */ 1326 struct rndis_per_packet_info { 1327 u32 size; 1328 u32 type:31; 1329 u32 internal:1; 1330 u32 ppi_offset; 1331 }; 1332 1333 enum ndis_per_pkt_info_type { 1334 TCPIP_CHKSUM_PKTINFO, 1335 IPSEC_PKTINFO, 1336 TCP_LARGESEND_PKTINFO, 1337 CLASSIFICATION_HANDLE_PKTINFO, 1338 NDIS_RESERVED, 1339 SG_LIST_PKTINFO, 1340 IEEE_8021Q_INFO, 1341 ORIGINAL_PKTINFO, 1342 PACKET_CANCEL_ID, 1343 NBL_HASH_VALUE = PACKET_CANCEL_ID, 1344 ORIGINAL_NET_BUFLIST, 1345 CACHED_NET_BUFLIST, 1346 SHORT_PKT_PADINFO, 1347 MAX_PER_PKT_INFO 1348 }; 1349 1350 enum rndis_per_pkt_info_interal_type { 1351 RNDIS_PKTINFO_ID = 1, 1352 /* Add more members here */ 1353 1354 RNDIS_PKTINFO_MAX 1355 }; 1356 1357 #define RNDIS_PKTINFO_SUBALLOC BIT(0) 1358 #define RNDIS_PKTINFO_1ST_FRAG BIT(1) 1359 #define RNDIS_PKTINFO_LAST_FRAG BIT(2) 1360 1361 #define RNDIS_PKTINFO_ID_V1 1 1362 1363 struct rndis_pktinfo_id { 1364 u8 ver; 1365 u8 flag; 1366 u16 pkt_id; 1367 }; 1368 1369 struct ndis_object_header { 1370 u8 type; 1371 u8 revision; 1372 u16 size; 1373 }; 1374 1375 #define NDIS_OBJECT_TYPE_DEFAULT 0x80 1376 #define NDIS_OFFLOAD_PARAMETERS_REVISION_3 3 1377 #define NDIS_OFFLOAD_PARAMETERS_REVISION_2 2 1378 #define NDIS_OFFLOAD_PARAMETERS_REVISION_1 1 1379 1380 #define NDIS_OFFLOAD_PARAMETERS_NO_CHANGE 0 1381 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_DISABLED 1 1382 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_ENABLED 2 1383 #define NDIS_OFFLOAD_PARAMETERS_LSOV1_ENABLED 2 1384 #define NDIS_OFFLOAD_PARAMETERS_RSC_DISABLED 1 1385 #define NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED 2 1386 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_DISABLED 1 1387 #define NDIS_OFFLOAD_PARAMETERS_TX_ENABLED_RX_DISABLED 2 1388 #define NDIS_OFFLOAD_PARAMETERS_RX_ENABLED_TX_DISABLED 3 1389 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED 4 1390 1391 #define NDIS_TCP_LARGE_SEND_OFFLOAD_V2_TYPE 1 1392 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV4 0 1393 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV6 1 1394 1395 #define VERSION_4_OFFLOAD_SIZE 22 1396 /* 1397 * New offload OIDs for NDIS 6 1398 */ 1399 #define OID_TCP_OFFLOAD_CURRENT_CONFIG 0xFC01020B /* query only */ 1400 #define OID_TCP_OFFLOAD_PARAMETERS 0xFC01020C /* set only */ 1401 #define OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020D/* query only */ 1402 #define OID_TCP_CONNECTION_OFFLOAD_CURRENT_CONFIG 0xFC01020E /* query only */ 1403 #define OID_TCP_CONNECTION_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020F /* query */ 1404 #define OID_OFFLOAD_ENCAPSULATION 0x0101010A /* set/query */ 1405 1406 /* 1407 * OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES 1408 * ndis_type: NDIS_OBJTYPE_OFFLOAD 1409 */ 1410 1411 #define NDIS_OFFLOAD_ENCAP_NONE 0x0000 1412 #define NDIS_OFFLOAD_ENCAP_NULL 0x0001 1413 #define NDIS_OFFLOAD_ENCAP_8023 0x0002 1414 #define NDIS_OFFLOAD_ENCAP_8023PQ 0x0004 1415 #define NDIS_OFFLOAD_ENCAP_8023PQ_OOB 0x0008 1416 #define NDIS_OFFLOAD_ENCAP_RFC1483 0x0010 1417 1418 struct ndis_csum_offload { 1419 u32 ip4_txenc; 1420 u32 ip4_txcsum; 1421 #define NDIS_TXCSUM_CAP_IP4OPT 0x001 1422 #define NDIS_TXCSUM_CAP_TCP4OPT 0x004 1423 #define NDIS_TXCSUM_CAP_TCP4 0x010 1424 #define NDIS_TXCSUM_CAP_UDP4 0x040 1425 #define NDIS_TXCSUM_CAP_IP4 0x100 1426 1427 #define NDIS_TXCSUM_ALL_TCP4 (NDIS_TXCSUM_CAP_TCP4 | NDIS_TXCSUM_CAP_TCP4OPT) 1428 1429 u32 ip4_rxenc; 1430 u32 ip4_rxcsum; 1431 #define NDIS_RXCSUM_CAP_IP4OPT 0x001 1432 #define NDIS_RXCSUM_CAP_TCP4OPT 0x004 1433 #define NDIS_RXCSUM_CAP_TCP4 0x010 1434 #define NDIS_RXCSUM_CAP_UDP4 0x040 1435 #define NDIS_RXCSUM_CAP_IP4 0x100 1436 u32 ip6_txenc; 1437 u32 ip6_txcsum; 1438 #define NDIS_TXCSUM_CAP_IP6EXT 0x001 1439 #define NDIS_TXCSUM_CAP_TCP6OPT 0x004 1440 #define NDIS_TXCSUM_CAP_TCP6 0x010 1441 #define NDIS_TXCSUM_CAP_UDP6 0x040 1442 u32 ip6_rxenc; 1443 u32 ip6_rxcsum; 1444 #define NDIS_RXCSUM_CAP_IP6EXT 0x001 1445 #define NDIS_RXCSUM_CAP_TCP6OPT 0x004 1446 #define NDIS_RXCSUM_CAP_TCP6 0x010 1447 #define NDIS_RXCSUM_CAP_UDP6 0x040 1448 1449 #define NDIS_TXCSUM_ALL_TCP6 (NDIS_TXCSUM_CAP_TCP6 | \ 1450 NDIS_TXCSUM_CAP_TCP6OPT | \ 1451 NDIS_TXCSUM_CAP_IP6EXT) 1452 }; 1453 1454 struct ndis_lsov1_offload { 1455 u32 encap; 1456 u32 maxsize; 1457 u32 minsegs; 1458 u32 opts; 1459 }; 1460 1461 struct ndis_ipsecv1_offload { 1462 u32 encap; 1463 u32 ah_esp; 1464 u32 xport_tun; 1465 u32 ip4_opts; 1466 u32 flags; 1467 u32 ip4_ah; 1468 u32 ip4_esp; 1469 }; 1470 1471 struct ndis_lsov2_offload { 1472 u32 ip4_encap; 1473 u32 ip4_maxsz; 1474 u32 ip4_minsg; 1475 u32 ip6_encap; 1476 u32 ip6_maxsz; 1477 u32 ip6_minsg; 1478 u32 ip6_opts; 1479 #define NDIS_LSOV2_CAP_IP6EXT 0x001 1480 #define NDIS_LSOV2_CAP_TCP6OPT 0x004 1481 1482 #define NDIS_LSOV2_CAP_IP6 (NDIS_LSOV2_CAP_IP6EXT | \ 1483 NDIS_LSOV2_CAP_TCP6OPT) 1484 }; 1485 1486 struct ndis_ipsecv2_offload { 1487 u32 encap; 1488 u8 ip6; 1489 u8 ip4opt; 1490 u8 ip6ext; 1491 u8 ah; 1492 u8 esp; 1493 u8 ah_esp; 1494 u8 xport; 1495 u8 tun; 1496 u8 xport_tun; 1497 u8 lso; 1498 u8 extseq; 1499 u32 udp_esp; 1500 u32 auth; 1501 u32 crypto; 1502 u32 sa_caps; 1503 }; 1504 1505 struct ndis_rsc_offload { 1506 u8 ip4; 1507 u8 ip6; 1508 }; 1509 1510 struct ndis_encap_offload { 1511 u32 flags; 1512 u32 maxhdr; 1513 }; 1514 1515 struct ndis_offload { 1516 struct ndis_object_header header; 1517 struct ndis_csum_offload csum; 1518 struct ndis_lsov1_offload lsov1; 1519 struct ndis_ipsecv1_offload ipsecv1; 1520 struct ndis_lsov2_offload lsov2; 1521 u32 flags; 1522 /* NDIS >= 6.1 */ 1523 struct ndis_ipsecv2_offload ipsecv2; 1524 /* NDIS >= 6.30 */ 1525 struct ndis_rsc_offload rsc; 1526 struct ndis_encap_offload encap_gre; 1527 }; 1528 1529 #define NDIS_OFFLOAD_SIZE sizeof(struct ndis_offload) 1530 #define NDIS_OFFLOAD_SIZE_6_0 offsetof(struct ndis_offload, ipsecv2) 1531 #define NDIS_OFFLOAD_SIZE_6_1 offsetof(struct ndis_offload, rsc) 1532 1533 struct ndis_offload_params { 1534 struct ndis_object_header header; 1535 u8 ip_v4_csum; 1536 u8 tcp_ip_v4_csum; 1537 u8 udp_ip_v4_csum; 1538 u8 tcp_ip_v6_csum; 1539 u8 udp_ip_v6_csum; 1540 u8 lso_v1; 1541 u8 ip_sec_v1; 1542 u8 lso_v2_ipv4; 1543 u8 lso_v2_ipv6; 1544 u8 tcp_connection_ip_v4; 1545 u8 tcp_connection_ip_v6; 1546 u32 flags; 1547 u8 ip_sec_v2; 1548 u8 ip_sec_v2_ip_v4; 1549 struct { 1550 u8 rsc_ip_v4; 1551 u8 rsc_ip_v6; 1552 }; 1553 struct { 1554 u8 encapsulated_packet_task_offload; 1555 u8 encapsulation_types; 1556 }; 1557 }; 1558 1559 struct ndis_tcp_lso_info { 1560 union { 1561 struct { 1562 u32 unused:30; 1563 u32 type:1; 1564 u32 reserved2:1; 1565 } transmit; 1566 struct { 1567 u32 mss:20; 1568 u32 tcp_header_offset:10; 1569 u32 type:1; 1570 u32 reserved2:1; 1571 } lso_v1_transmit; 1572 struct { 1573 u32 tcp_payload:30; 1574 u32 type:1; 1575 u32 reserved2:1; 1576 } lso_v1_transmit_complete; 1577 struct { 1578 u32 mss:20; 1579 u32 tcp_header_offset:10; 1580 u32 type:1; 1581 u32 ip_version:1; 1582 } lso_v2_transmit; 1583 struct { 1584 u32 reserved:30; 1585 u32 type:1; 1586 u32 reserved2:1; 1587 } lso_v2_transmit_complete; 1588 u32 value; 1589 }; 1590 }; 1591 1592 #define NDIS_VLAN_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \ 1593 sizeof(struct ndis_pkt_8021q_info)) 1594 1595 #define NDIS_CSUM_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \ 1596 sizeof(struct ndis_tcp_ip_checksum_info)) 1597 1598 #define NDIS_LSO_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \ 1599 sizeof(struct ndis_tcp_lso_info)) 1600 1601 #define NDIS_HASH_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \ 1602 sizeof(u32)) 1603 1604 /* Total size of all PPI data */ 1605 #define NDIS_ALL_PPI_SIZE (NDIS_VLAN_PPI_SIZE + NDIS_CSUM_PPI_SIZE + \ 1606 NDIS_LSO_PPI_SIZE + NDIS_HASH_PPI_SIZE) 1607 1608 /* Format of Information buffer passed in a SetRequest for the OID */ 1609 /* OID_GEN_RNDIS_CONFIG_PARAMETER. */ 1610 struct rndis_config_parameter_info { 1611 u32 parameter_name_offset; 1612 u32 parameter_name_length; 1613 u32 parameter_type; 1614 u32 parameter_value_offset; 1615 u32 parameter_value_length; 1616 }; 1617 1618 /* Values for ParameterType in struct rndis_config_parameter_info */ 1619 #define RNDIS_CONFIG_PARAM_TYPE_INTEGER 0 1620 #define RNDIS_CONFIG_PARAM_TYPE_STRING 2 1621 1622 /* CONDIS Miniport messages for connection oriented devices */ 1623 /* that do not implement a call manager. */ 1624 1625 /* CoNdisMiniportCreateVc message */ 1626 struct rcondis_mp_create_vc { 1627 u32 req_id; 1628 u32 ndis_vc_handle; 1629 }; 1630 1631 /* Response to CoNdisMiniportCreateVc */ 1632 struct rcondis_mp_create_vc_complete { 1633 u32 req_id; 1634 u32 dev_vc_handle; 1635 u32 status; 1636 }; 1637 1638 /* CoNdisMiniportDeleteVc message */ 1639 struct rcondis_mp_delete_vc { 1640 u32 req_id; 1641 u32 dev_vc_handle; 1642 }; 1643 1644 /* Response to CoNdisMiniportDeleteVc */ 1645 struct rcondis_mp_delete_vc_complete { 1646 u32 req_id; 1647 u32 status; 1648 }; 1649 1650 /* CoNdisMiniportQueryRequest message */ 1651 struct rcondis_mp_query_request { 1652 u32 req_id; 1653 u32 request_type; 1654 u32 oid; 1655 u32 dev_vc_handle; 1656 u32 info_buflen; 1657 u32 info_buf_offset; 1658 }; 1659 1660 /* CoNdisMiniportSetRequest message */ 1661 struct rcondis_mp_set_request { 1662 u32 req_id; 1663 u32 request_type; 1664 u32 oid; 1665 u32 dev_vc_handle; 1666 u32 info_buflen; 1667 u32 info_buf_offset; 1668 }; 1669 1670 /* CoNdisIndicateStatus message */ 1671 struct rcondis_indicate_status { 1672 u32 ndis_vc_handle; 1673 u32 status; 1674 u32 status_buflen; 1675 u32 status_buf_offset; 1676 }; 1677 1678 /* CONDIS Call/VC parameters */ 1679 struct rcondis_specific_parameters { 1680 u32 parameter_type; 1681 u32 parameter_length; 1682 u32 parameter_lffset; 1683 }; 1684 1685 struct rcondis_media_parameters { 1686 u32 flags; 1687 u32 reserved1; 1688 u32 reserved2; 1689 struct rcondis_specific_parameters media_specific; 1690 }; 1691 1692 struct rndis_flowspec { 1693 u32 token_rate; 1694 u32 token_bucket_size; 1695 u32 peak_bandwidth; 1696 u32 latency; 1697 u32 delay_variation; 1698 u32 service_type; 1699 u32 max_sdu_size; 1700 u32 minimum_policed_size; 1701 }; 1702 1703 struct rcondis_call_manager_parameters { 1704 struct rndis_flowspec transmit; 1705 struct rndis_flowspec receive; 1706 struct rcondis_specific_parameters call_mgr_specific; 1707 }; 1708 1709 /* CoNdisMiniportActivateVc message */ 1710 struct rcondis_mp_activate_vc_request { 1711 u32 req_id; 1712 u32 flags; 1713 u32 dev_vc_handle; 1714 u32 media_params_offset; 1715 u32 media_params_length; 1716 u32 call_mgr_params_offset; 1717 u32 call_mgr_params_length; 1718 }; 1719 1720 /* Response to CoNdisMiniportActivateVc */ 1721 struct rcondis_mp_activate_vc_complete { 1722 u32 req_id; 1723 u32 status; 1724 }; 1725 1726 /* CoNdisMiniportDeactivateVc message */ 1727 struct rcondis_mp_deactivate_vc_request { 1728 u32 req_id; 1729 u32 flags; 1730 u32 dev_vc_handle; 1731 }; 1732 1733 /* Response to CoNdisMiniportDeactivateVc */ 1734 struct rcondis_mp_deactivate_vc_complete { 1735 u32 req_id; 1736 u32 status; 1737 }; 1738 1739 1740 /* union with all of the RNDIS messages */ 1741 union rndis_message_container { 1742 struct rndis_packet pkt; 1743 struct rndis_initialize_request init_req; 1744 struct rndis_halt_request halt_req; 1745 struct rndis_query_request query_req; 1746 struct rndis_set_request set_req; 1747 struct rndis_reset_request reset_req; 1748 struct rndis_keepalive_request keep_alive_req; 1749 struct rndis_indicate_status indicate_status; 1750 struct rndis_initialize_complete init_complete; 1751 struct rndis_query_complete query_complete; 1752 struct rndis_set_complete set_complete; 1753 struct rndis_reset_complete reset_complete; 1754 struct rndis_keepalive_complete keep_alive_complete; 1755 struct rcondis_mp_create_vc co_miniport_create_vc; 1756 struct rcondis_mp_delete_vc co_miniport_delete_vc; 1757 struct rcondis_indicate_status co_indicate_status; 1758 struct rcondis_mp_activate_vc_request co_miniport_activate_vc; 1759 struct rcondis_mp_deactivate_vc_request co_miniport_deactivate_vc; 1760 struct rcondis_mp_create_vc_complete co_miniport_create_vc_complete; 1761 struct rcondis_mp_delete_vc_complete co_miniport_delete_vc_complete; 1762 struct rcondis_mp_activate_vc_complete co_miniport_activate_vc_complete; 1763 struct rcondis_mp_deactivate_vc_complete 1764 co_miniport_deactivate_vc_complete; 1765 }; 1766 1767 /* Remote NDIS message format */ 1768 struct rndis_message { 1769 u32 ndis_msg_type; 1770 1771 /* Total length of this message, from the beginning */ 1772 /* of the struct rndis_message, in bytes. */ 1773 u32 msg_len; 1774 1775 /* Actual message */ 1776 union rndis_message_container msg; 1777 }; 1778 1779 1780 /* Handy macros */ 1781 1782 /* get the size of an RNDIS message. Pass in the message type, */ 1783 /* struct rndis_set_request, struct rndis_packet for example */ 1784 #define RNDIS_MESSAGE_SIZE(msg) \ 1785 (sizeof(msg) + (sizeof(struct rndis_message) - \ 1786 sizeof(union rndis_message_container))) 1787 1788 #define RNDIS_HEADER_SIZE (sizeof(struct rndis_message) - \ 1789 sizeof(union rndis_message_container)) 1790 1791 #define RNDIS_AND_PPI_SIZE (sizeof(struct rndis_message) + NDIS_ALL_PPI_SIZE) 1792 1793 #define NDIS_PACKET_TYPE_DIRECTED 0x00000001 1794 #define NDIS_PACKET_TYPE_MULTICAST 0x00000002 1795 #define NDIS_PACKET_TYPE_ALL_MULTICAST 0x00000004 1796 #define NDIS_PACKET_TYPE_BROADCAST 0x00000008 1797 #define NDIS_PACKET_TYPE_SOURCE_ROUTING 0x00000010 1798 #define NDIS_PACKET_TYPE_PROMISCUOUS 0x00000020 1799 #define NDIS_PACKET_TYPE_SMT 0x00000040 1800 #define NDIS_PACKET_TYPE_ALL_LOCAL 0x00000080 1801 #define NDIS_PACKET_TYPE_GROUP 0x00000100 1802 #define NDIS_PACKET_TYPE_ALL_FUNCTIONAL 0x00000200 1803 #define NDIS_PACKET_TYPE_FUNCTIONAL 0x00000400 1804 #define NDIS_PACKET_TYPE_MAC_FRAME 0x00000800 1805 1806 #define TRANSPORT_INFO_NOT_IP 0 1807 #define TRANSPORT_INFO_IPV4_TCP 0x01 1808 #define TRANSPORT_INFO_IPV4_UDP 0x02 1809 #define TRANSPORT_INFO_IPV6_TCP 0x10 1810 #define TRANSPORT_INFO_IPV6_UDP 0x20 1811 1812 #define RETRY_US_LO 5000 1813 #define RETRY_US_HI 10000 1814 #define RETRY_MAX 2000 /* >10 sec */ 1815 1816 void netvsc_dma_unmap(struct hv_device *hv_dev, 1817 struct hv_netvsc_packet *packet); 1818 #endif /* _HYPERV_NET_H */ 1819