1 /* 2 * 3 * Copyright (c) 2011, Microsoft Corporation. 4 * 5 * This program is free software; you can redistribute it and/or modify it 6 * under the terms and conditions of the GNU General Public License, 7 * version 2, as published by the Free Software Foundation. 8 * 9 * This program is distributed in the hope it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 12 * more details. 13 * 14 * You should have received a copy of the GNU General Public License along with 15 * this program; if not, see <http://www.gnu.org/licenses/>. 16 * 17 * Authors: 18 * Haiyang Zhang <haiyangz@microsoft.com> 19 * Hank Janssen <hjanssen@microsoft.com> 20 * K. Y. Srinivasan <kys@microsoft.com> 21 * 22 */ 23 24 #ifndef _HYPERV_NET_H 25 #define _HYPERV_NET_H 26 27 #include <linux/list.h> 28 #include <linux/hyperv.h> 29 #include <linux/rndis.h> 30 31 /* RSS related */ 32 #define OID_GEN_RECEIVE_SCALE_CAPABILITIES 0x00010203 /* query only */ 33 #define OID_GEN_RECEIVE_SCALE_PARAMETERS 0x00010204 /* query and set */ 34 35 #define NDIS_OBJECT_TYPE_RSS_CAPABILITIES 0x88 36 #define NDIS_OBJECT_TYPE_RSS_PARAMETERS 0x89 37 38 #define NDIS_RECEIVE_SCALE_CAPABILITIES_REVISION_2 2 39 #define NDIS_RECEIVE_SCALE_PARAMETERS_REVISION_2 2 40 41 struct ndis_obj_header { 42 u8 type; 43 u8 rev; 44 u16 size; 45 } __packed; 46 47 /* ndis_recv_scale_cap/cap_flag */ 48 #define NDIS_RSS_CAPS_MESSAGE_SIGNALED_INTERRUPTS 0x01000000 49 #define NDIS_RSS_CAPS_CLASSIFICATION_AT_ISR 0x02000000 50 #define NDIS_RSS_CAPS_CLASSIFICATION_AT_DPC 0x04000000 51 #define NDIS_RSS_CAPS_USING_MSI_X 0x08000000 52 #define NDIS_RSS_CAPS_RSS_AVAILABLE_ON_PORTS 0x10000000 53 #define NDIS_RSS_CAPS_SUPPORTS_MSI_X 0x20000000 54 #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV4 0x00000100 55 #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV6 0x00000200 56 #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV6_EX 0x00000400 57 58 struct ndis_recv_scale_cap { /* NDIS_RECEIVE_SCALE_CAPABILITIES */ 59 struct ndis_obj_header hdr; 60 u32 cap_flag; 61 u32 num_int_msg; 62 u32 num_recv_que; 63 u16 num_indirect_tabent; 64 } __packed; 65 66 67 /* ndis_recv_scale_param flags */ 68 #define NDIS_RSS_PARAM_FLAG_BASE_CPU_UNCHANGED 0x0001 69 #define NDIS_RSS_PARAM_FLAG_HASH_INFO_UNCHANGED 0x0002 70 #define NDIS_RSS_PARAM_FLAG_ITABLE_UNCHANGED 0x0004 71 #define NDIS_RSS_PARAM_FLAG_HASH_KEY_UNCHANGED 0x0008 72 #define NDIS_RSS_PARAM_FLAG_DISABLE_RSS 0x0010 73 74 /* Hash info bits */ 75 #define NDIS_HASH_FUNC_TOEPLITZ 0x00000001 76 #define NDIS_HASH_IPV4 0x00000100 77 #define NDIS_HASH_TCP_IPV4 0x00000200 78 #define NDIS_HASH_IPV6 0x00000400 79 #define NDIS_HASH_IPV6_EX 0x00000800 80 #define NDIS_HASH_TCP_IPV6 0x00001000 81 #define NDIS_HASH_TCP_IPV6_EX 0x00002000 82 83 #define NDIS_RSS_INDIRECTION_TABLE_MAX_SIZE_REVISION_2 (128 * 4) 84 #define NDIS_RSS_HASH_SECRET_KEY_MAX_SIZE_REVISION_2 40 85 86 #define ITAB_NUM 128 87 #define HASH_KEYLEN NDIS_RSS_HASH_SECRET_KEY_MAX_SIZE_REVISION_2 88 extern u8 netvsc_hash_key[]; 89 90 struct ndis_recv_scale_param { /* NDIS_RECEIVE_SCALE_PARAMETERS */ 91 struct ndis_obj_header hdr; 92 93 /* Qualifies the rest of the information */ 94 u16 flag; 95 96 /* The base CPU number to do receive processing. not used */ 97 u16 base_cpu_number; 98 99 /* This describes the hash function and type being enabled */ 100 u32 hashinfo; 101 102 /* The size of indirection table array */ 103 u16 indirect_tabsize; 104 105 /* The offset of the indirection table from the beginning of this 106 * structure 107 */ 108 u32 indirect_taboffset; 109 110 /* The size of the hash secret key */ 111 u16 hashkey_size; 112 113 /* The offset of the secret key from the beginning of this structure */ 114 u32 kashkey_offset; 115 116 u32 processor_masks_offset; 117 u32 num_processor_masks; 118 u32 processor_masks_entry_size; 119 }; 120 121 /* Fwd declaration */ 122 struct ndis_tcp_ip_checksum_info; 123 124 /* 125 * Represent netvsc packet which contains 1 RNDIS and 1 ethernet frame 126 * within the RNDIS 127 * 128 * The size of this structure is less than 48 bytes and we can now 129 * place this structure in the skb->cb field. 130 */ 131 struct hv_netvsc_packet { 132 /* Bookkeeping stuff */ 133 u8 cp_partial; /* partial copy into send buffer */ 134 135 u8 rmsg_size; /* RNDIS header and PPI size */ 136 u8 rmsg_pgcnt; /* page count of RNDIS header and PPI */ 137 u8 page_buf_cnt; 138 139 u16 q_idx; 140 u32 send_buf_index; 141 142 u32 total_data_buflen; 143 }; 144 145 struct netvsc_device_info { 146 unsigned char mac_adr[ETH_ALEN]; 147 bool link_state; /* 0 - link up, 1 - link down */ 148 int ring_size; 149 u32 max_num_vrss_chns; 150 u32 num_chn; 151 }; 152 153 enum rndis_device_state { 154 RNDIS_DEV_UNINITIALIZED = 0, 155 RNDIS_DEV_INITIALIZING, 156 RNDIS_DEV_INITIALIZED, 157 RNDIS_DEV_DATAINITIALIZED, 158 }; 159 160 struct rndis_device { 161 struct netvsc_device *net_dev; 162 163 enum rndis_device_state state; 164 bool link_state; 165 atomic_t new_req_id; 166 167 spinlock_t request_lock; 168 struct list_head req_list; 169 170 unsigned char hw_mac_adr[ETH_ALEN]; 171 }; 172 173 174 /* Interface */ 175 struct rndis_message; 176 int netvsc_device_add(struct hv_device *device, void *additional_info); 177 int netvsc_device_remove(struct hv_device *device); 178 int netvsc_send(struct hv_device *device, 179 struct hv_netvsc_packet *packet, 180 struct rndis_message *rndis_msg, 181 struct hv_page_buffer **page_buffer, 182 struct sk_buff *skb); 183 void netvsc_linkstatus_callback(struct hv_device *device_obj, 184 struct rndis_message *resp); 185 int netvsc_recv_callback(struct hv_device *device_obj, 186 struct hv_netvsc_packet *packet, 187 void **data, 188 struct ndis_tcp_ip_checksum_info *csum_info, 189 struct vmbus_channel *channel, 190 u16 vlan_tci); 191 void netvsc_channel_cb(void *context); 192 int rndis_filter_open(struct hv_device *dev); 193 int rndis_filter_close(struct hv_device *dev); 194 int rndis_filter_device_add(struct hv_device *dev, 195 void *additional_info); 196 void rndis_filter_device_remove(struct hv_device *dev); 197 int rndis_filter_receive(struct hv_device *dev, 198 struct hv_netvsc_packet *pkt, 199 void **data, 200 struct vmbus_channel *channel); 201 202 int rndis_filter_set_packet_filter(struct rndis_device *dev, u32 new_filter); 203 int rndis_filter_set_device_mac(struct hv_device *hdev, char *mac); 204 205 void netvsc_switch_datapath(struct netvsc_device *nv_dev, bool vf); 206 207 #define NVSP_INVALID_PROTOCOL_VERSION ((u32)0xFFFFFFFF) 208 209 #define NVSP_PROTOCOL_VERSION_1 2 210 #define NVSP_PROTOCOL_VERSION_2 0x30002 211 #define NVSP_PROTOCOL_VERSION_4 0x40000 212 #define NVSP_PROTOCOL_VERSION_5 0x50000 213 214 enum { 215 NVSP_MSG_TYPE_NONE = 0, 216 217 /* Init Messages */ 218 NVSP_MSG_TYPE_INIT = 1, 219 NVSP_MSG_TYPE_INIT_COMPLETE = 2, 220 221 NVSP_VERSION_MSG_START = 100, 222 223 /* Version 1 Messages */ 224 NVSP_MSG1_TYPE_SEND_NDIS_VER = NVSP_VERSION_MSG_START, 225 226 NVSP_MSG1_TYPE_SEND_RECV_BUF, 227 NVSP_MSG1_TYPE_SEND_RECV_BUF_COMPLETE, 228 NVSP_MSG1_TYPE_REVOKE_RECV_BUF, 229 230 NVSP_MSG1_TYPE_SEND_SEND_BUF, 231 NVSP_MSG1_TYPE_SEND_SEND_BUF_COMPLETE, 232 NVSP_MSG1_TYPE_REVOKE_SEND_BUF, 233 234 NVSP_MSG1_TYPE_SEND_RNDIS_PKT, 235 NVSP_MSG1_TYPE_SEND_RNDIS_PKT_COMPLETE, 236 237 /* Version 2 messages */ 238 NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF, 239 NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF_COMP, 240 NVSP_MSG2_TYPE_REVOKE_CHIMNEY_DELEGATED_BUF, 241 242 NVSP_MSG2_TYPE_RESUME_CHIMNEY_RX_INDICATION, 243 244 NVSP_MSG2_TYPE_TERMINATE_CHIMNEY, 245 NVSP_MSG2_TYPE_TERMINATE_CHIMNEY_COMP, 246 247 NVSP_MSG2_TYPE_INDICATE_CHIMNEY_EVENT, 248 249 NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT, 250 NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT_COMP, 251 252 NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ, 253 NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ_COMP, 254 255 NVSP_MSG2_TYPE_ALLOC_RXBUF, 256 NVSP_MSG2_TYPE_ALLOC_RXBUF_COMP, 257 258 NVSP_MSG2_TYPE_FREE_RXBUF, 259 260 NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT, 261 NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT_COMP, 262 263 NVSP_MSG2_TYPE_SEND_NDIS_CONFIG, 264 265 NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE, 266 NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP, 267 268 NVSP_MSG2_MAX = NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP, 269 270 /* Version 4 messages */ 271 NVSP_MSG4_TYPE_SEND_VF_ASSOCIATION, 272 NVSP_MSG4_TYPE_SWITCH_DATA_PATH, 273 NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED, 274 275 NVSP_MSG4_MAX = NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED, 276 277 /* Version 5 messages */ 278 NVSP_MSG5_TYPE_OID_QUERY_EX, 279 NVSP_MSG5_TYPE_OID_QUERY_EX_COMP, 280 NVSP_MSG5_TYPE_SUBCHANNEL, 281 NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE, 282 283 NVSP_MSG5_MAX = NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE, 284 }; 285 286 enum { 287 NVSP_STAT_NONE = 0, 288 NVSP_STAT_SUCCESS, 289 NVSP_STAT_FAIL, 290 NVSP_STAT_PROTOCOL_TOO_NEW, 291 NVSP_STAT_PROTOCOL_TOO_OLD, 292 NVSP_STAT_INVALID_RNDIS_PKT, 293 NVSP_STAT_BUSY, 294 NVSP_STAT_PROTOCOL_UNSUPPORTED, 295 NVSP_STAT_MAX, 296 }; 297 298 struct nvsp_message_header { 299 u32 msg_type; 300 }; 301 302 /* Init Messages */ 303 304 /* 305 * This message is used by the VSC to initialize the channel after the channels 306 * has been opened. This message should never include anything other then 307 * versioning (i.e. this message will be the same for ever). 308 */ 309 struct nvsp_message_init { 310 u32 min_protocol_ver; 311 u32 max_protocol_ver; 312 } __packed; 313 314 /* 315 * This message is used by the VSP to complete the initialization of the 316 * channel. This message should never include anything other then versioning 317 * (i.e. this message will be the same for ever). 318 */ 319 struct nvsp_message_init_complete { 320 u32 negotiated_protocol_ver; 321 u32 max_mdl_chain_len; 322 u32 status; 323 } __packed; 324 325 union nvsp_message_init_uber { 326 struct nvsp_message_init init; 327 struct nvsp_message_init_complete init_complete; 328 } __packed; 329 330 /* Version 1 Messages */ 331 332 /* 333 * This message is used by the VSC to send the NDIS version to the VSP. The VSP 334 * can use this information when handling OIDs sent by the VSC. 335 */ 336 struct nvsp_1_message_send_ndis_version { 337 u32 ndis_major_ver; 338 u32 ndis_minor_ver; 339 } __packed; 340 341 /* 342 * This message is used by the VSC to send a receive buffer to the VSP. The VSP 343 * can then use the receive buffer to send data to the VSC. 344 */ 345 struct nvsp_1_message_send_receive_buffer { 346 u32 gpadl_handle; 347 u16 id; 348 } __packed; 349 350 struct nvsp_1_receive_buffer_section { 351 u32 offset; 352 u32 sub_alloc_size; 353 u32 num_sub_allocs; 354 u32 end_offset; 355 } __packed; 356 357 /* 358 * This message is used by the VSP to acknowledge a receive buffer send by the 359 * VSC. This message must be sent by the VSP before the VSP uses the receive 360 * buffer. 361 */ 362 struct nvsp_1_message_send_receive_buffer_complete { 363 u32 status; 364 u32 num_sections; 365 366 /* 367 * The receive buffer is split into two parts, a large suballocation 368 * section and a small suballocation section. These sections are then 369 * suballocated by a certain size. 370 */ 371 372 /* 373 * For example, the following break up of the receive buffer has 6 374 * large suballocations and 10 small suballocations. 375 */ 376 377 /* 378 * | Large Section | | Small Section | 379 * ------------------------------------------------------------ 380 * | | | | | | | | | | | | | | | | | | 381 * | | 382 * LargeOffset SmallOffset 383 */ 384 385 struct nvsp_1_receive_buffer_section sections[1]; 386 } __packed; 387 388 /* 389 * This message is sent by the VSC to revoke the receive buffer. After the VSP 390 * completes this transaction, the vsp should never use the receive buffer 391 * again. 392 */ 393 struct nvsp_1_message_revoke_receive_buffer { 394 u16 id; 395 }; 396 397 /* 398 * This message is used by the VSC to send a send buffer to the VSP. The VSC 399 * can then use the send buffer to send data to the VSP. 400 */ 401 struct nvsp_1_message_send_send_buffer { 402 u32 gpadl_handle; 403 u16 id; 404 } __packed; 405 406 /* 407 * This message is used by the VSP to acknowledge a send buffer sent by the 408 * VSC. This message must be sent by the VSP before the VSP uses the sent 409 * buffer. 410 */ 411 struct nvsp_1_message_send_send_buffer_complete { 412 u32 status; 413 414 /* 415 * The VSC gets to choose the size of the send buffer and the VSP gets 416 * to choose the sections size of the buffer. This was done to enable 417 * dynamic reconfigurations when the cost of GPA-direct buffers 418 * decreases. 419 */ 420 u32 section_size; 421 } __packed; 422 423 /* 424 * This message is sent by the VSC to revoke the send buffer. After the VSP 425 * completes this transaction, the vsp should never use the send buffer again. 426 */ 427 struct nvsp_1_message_revoke_send_buffer { 428 u16 id; 429 }; 430 431 /* 432 * This message is used by both the VSP and the VSC to send a RNDIS message to 433 * the opposite channel endpoint. 434 */ 435 struct nvsp_1_message_send_rndis_packet { 436 /* 437 * This field is specified by RNIDS. They assume there's two different 438 * channels of communication. However, the Network VSP only has one. 439 * Therefore, the channel travels with the RNDIS packet. 440 */ 441 u32 channel_type; 442 443 /* 444 * This field is used to send part or all of the data through a send 445 * buffer. This values specifies an index into the send buffer. If the 446 * index is 0xFFFFFFFF, then the send buffer is not being used and all 447 * of the data was sent through other VMBus mechanisms. 448 */ 449 u32 send_buf_section_index; 450 u32 send_buf_section_size; 451 } __packed; 452 453 /* 454 * This message is used by both the VSP and the VSC to complete a RNDIS message 455 * to the opposite channel endpoint. At this point, the initiator of this 456 * message cannot use any resources associated with the original RNDIS packet. 457 */ 458 struct nvsp_1_message_send_rndis_packet_complete { 459 u32 status; 460 }; 461 462 union nvsp_1_message_uber { 463 struct nvsp_1_message_send_ndis_version send_ndis_ver; 464 465 struct nvsp_1_message_send_receive_buffer send_recv_buf; 466 struct nvsp_1_message_send_receive_buffer_complete 467 send_recv_buf_complete; 468 struct nvsp_1_message_revoke_receive_buffer revoke_recv_buf; 469 470 struct nvsp_1_message_send_send_buffer send_send_buf; 471 struct nvsp_1_message_send_send_buffer_complete send_send_buf_complete; 472 struct nvsp_1_message_revoke_send_buffer revoke_send_buf; 473 474 struct nvsp_1_message_send_rndis_packet send_rndis_pkt; 475 struct nvsp_1_message_send_rndis_packet_complete 476 send_rndis_pkt_complete; 477 } __packed; 478 479 480 /* 481 * Network VSP protocol version 2 messages: 482 */ 483 struct nvsp_2_vsc_capability { 484 union { 485 u64 data; 486 struct { 487 u64 vmq:1; 488 u64 chimney:1; 489 u64 sriov:1; 490 u64 ieee8021q:1; 491 u64 correlation_id:1; 492 }; 493 }; 494 } __packed; 495 496 struct nvsp_2_send_ndis_config { 497 u32 mtu; 498 u32 reserved; 499 struct nvsp_2_vsc_capability capability; 500 } __packed; 501 502 /* Allocate receive buffer */ 503 struct nvsp_2_alloc_rxbuf { 504 /* Allocation ID to match the allocation request and response */ 505 u32 alloc_id; 506 507 /* Length of the VM shared memory receive buffer that needs to 508 * be allocated 509 */ 510 u32 len; 511 } __packed; 512 513 /* Allocate receive buffer complete */ 514 struct nvsp_2_alloc_rxbuf_comp { 515 /* The NDIS_STATUS code for buffer allocation */ 516 u32 status; 517 518 u32 alloc_id; 519 520 /* GPADL handle for the allocated receive buffer */ 521 u32 gpadl_handle; 522 523 /* Receive buffer ID */ 524 u64 recv_buf_id; 525 } __packed; 526 527 struct nvsp_2_free_rxbuf { 528 u64 recv_buf_id; 529 } __packed; 530 531 union nvsp_2_message_uber { 532 struct nvsp_2_send_ndis_config send_ndis_config; 533 struct nvsp_2_alloc_rxbuf alloc_rxbuf; 534 struct nvsp_2_alloc_rxbuf_comp alloc_rxbuf_comp; 535 struct nvsp_2_free_rxbuf free_rxbuf; 536 } __packed; 537 538 struct nvsp_4_send_vf_association { 539 /* 1: allocated, serial number is valid. 0: not allocated */ 540 u32 allocated; 541 542 /* Serial number of the VF to team with */ 543 u32 serial; 544 } __packed; 545 546 enum nvsp_vm_datapath { 547 NVSP_DATAPATH_SYNTHETIC = 0, 548 NVSP_DATAPATH_VF, 549 NVSP_DATAPATH_MAX 550 }; 551 552 struct nvsp_4_sw_datapath { 553 u32 active_datapath; /* active data path in VM */ 554 } __packed; 555 556 union nvsp_4_message_uber { 557 struct nvsp_4_send_vf_association vf_assoc; 558 struct nvsp_4_sw_datapath active_dp; 559 } __packed; 560 561 enum nvsp_subchannel_operation { 562 NVSP_SUBCHANNEL_NONE = 0, 563 NVSP_SUBCHANNEL_ALLOCATE, 564 NVSP_SUBCHANNEL_MAX 565 }; 566 567 struct nvsp_5_subchannel_request { 568 u32 op; 569 u32 num_subchannels; 570 } __packed; 571 572 struct nvsp_5_subchannel_complete { 573 u32 status; 574 u32 num_subchannels; /* Actual number of subchannels allocated */ 575 } __packed; 576 577 struct nvsp_5_send_indirect_table { 578 /* The number of entries in the send indirection table */ 579 u32 count; 580 581 /* The offset of the send indireciton table from top of this struct. 582 * The send indirection table tells which channel to put the send 583 * traffic on. Each entry is a channel number. 584 */ 585 u32 offset; 586 } __packed; 587 588 union nvsp_5_message_uber { 589 struct nvsp_5_subchannel_request subchn_req; 590 struct nvsp_5_subchannel_complete subchn_comp; 591 struct nvsp_5_send_indirect_table send_table; 592 } __packed; 593 594 union nvsp_all_messages { 595 union nvsp_message_init_uber init_msg; 596 union nvsp_1_message_uber v1_msg; 597 union nvsp_2_message_uber v2_msg; 598 union nvsp_4_message_uber v4_msg; 599 union nvsp_5_message_uber v5_msg; 600 } __packed; 601 602 /* ALL Messages */ 603 struct nvsp_message { 604 struct nvsp_message_header hdr; 605 union nvsp_all_messages msg; 606 } __packed; 607 608 609 #define NETVSC_MTU 65536 610 #define NETVSC_MTU_MIN 68 611 612 #define NETVSC_RECEIVE_BUFFER_SIZE (1024*1024*16) /* 16MB */ 613 #define NETVSC_RECEIVE_BUFFER_SIZE_LEGACY (1024*1024*15) /* 15MB */ 614 #define NETVSC_SEND_BUFFER_SIZE (1024 * 1024 * 15) /* 15MB */ 615 #define NETVSC_INVALID_INDEX -1 616 617 618 #define NETVSC_RECEIVE_BUFFER_ID 0xcafe 619 #define NETVSC_SEND_BUFFER_ID 0 620 621 #define NETVSC_PACKET_SIZE 4096 622 623 #define VRSS_SEND_TAB_SIZE 16 624 #define VRSS_CHANNEL_MAX 64 625 626 #define RNDIS_MAX_PKT_DEFAULT 8 627 #define RNDIS_PKT_ALIGN_DEFAULT 8 628 629 struct multi_send_data { 630 struct sk_buff *skb; /* skb containing the pkt */ 631 struct hv_netvsc_packet *pkt; /* netvsc pkt pending */ 632 u32 count; /* counter of batched packets */ 633 }; 634 635 struct netvsc_stats { 636 u64 packets; 637 u64 bytes; 638 struct u64_stats_sync syncp; 639 }; 640 641 struct netvsc_reconfig { 642 struct list_head list; 643 u32 event; 644 }; 645 646 struct garp_wrk { 647 struct work_struct dwrk; 648 struct net_device *netdev; 649 struct netvsc_device *netvsc_dev; 650 }; 651 652 /* The context of the netvsc device */ 653 struct net_device_context { 654 /* point back to our device context */ 655 struct hv_device *device_ctx; 656 /* reconfigure work */ 657 struct delayed_work dwork; 658 /* last reconfig time */ 659 unsigned long last_reconfig; 660 /* reconfig events */ 661 struct list_head reconfig_events; 662 /* list protection */ 663 spinlock_t lock; 664 665 struct work_struct work; 666 u32 msg_enable; /* debug level */ 667 struct garp_wrk gwrk; 668 669 struct netvsc_stats __percpu *tx_stats; 670 struct netvsc_stats __percpu *rx_stats; 671 672 /* Ethtool settings */ 673 u8 duplex; 674 u32 speed; 675 }; 676 677 /* Per netvsc device */ 678 struct netvsc_device { 679 struct hv_device *dev; 680 681 u32 nvsp_version; 682 683 atomic_t num_outstanding_sends; 684 wait_queue_head_t wait_drain; 685 bool start_remove; 686 bool destroy; 687 688 /* Receive buffer allocated by us but manages by NetVSP */ 689 void *recv_buf; 690 u32 recv_buf_size; 691 u32 recv_buf_gpadl_handle; 692 u32 recv_section_cnt; 693 struct nvsp_1_receive_buffer_section *recv_section; 694 695 /* Send buffer allocated by us */ 696 void *send_buf; 697 u32 send_buf_size; 698 u32 send_buf_gpadl_handle; 699 u32 send_section_cnt; 700 u32 send_section_size; 701 unsigned long *send_section_map; 702 int map_words; 703 704 /* Used for NetVSP initialization protocol */ 705 struct completion channel_init_wait; 706 struct nvsp_message channel_init_pkt; 707 708 struct nvsp_message revoke_packet; 709 /* unsigned char HwMacAddr[HW_MACADDR_LEN]; */ 710 711 struct net_device *ndev; 712 713 struct vmbus_channel *chn_table[VRSS_CHANNEL_MAX]; 714 u32 send_table[VRSS_SEND_TAB_SIZE]; 715 u32 max_chn; 716 u32 num_chn; 717 spinlock_t sc_lock; /* Protects num_sc_offered variable */ 718 u32 num_sc_offered; 719 atomic_t queue_sends[VRSS_CHANNEL_MAX]; 720 721 /* Holds rndis device info */ 722 void *extension; 723 724 int ring_size; 725 726 /* The primary channel callback buffer */ 727 unsigned char *cb_buffer; 728 /* The sub channel callback buffer */ 729 unsigned char *sub_cb_buf; 730 731 struct multi_send_data msd[VRSS_CHANNEL_MAX]; 732 u32 max_pkt; /* max number of pkt in one send, e.g. 8 */ 733 u32 pkt_align; /* alignment bytes, e.g. 8 */ 734 735 /* The net device context */ 736 struct net_device_context *nd_ctx; 737 738 /* 1: allocated, serial number is valid. 0: not allocated */ 739 u32 vf_alloc; 740 /* Serial number of the VF to team with */ 741 u32 vf_serial; 742 atomic_t open_cnt; 743 /* State to manage the associated VF interface. */ 744 bool vf_inject; 745 struct net_device *vf_netdev; 746 atomic_t vf_use_cnt; 747 }; 748 749 /* NdisInitialize message */ 750 struct rndis_initialize_request { 751 u32 req_id; 752 u32 major_ver; 753 u32 minor_ver; 754 u32 max_xfer_size; 755 }; 756 757 /* Response to NdisInitialize */ 758 struct rndis_initialize_complete { 759 u32 req_id; 760 u32 status; 761 u32 major_ver; 762 u32 minor_ver; 763 u32 dev_flags; 764 u32 medium; 765 u32 max_pkt_per_msg; 766 u32 max_xfer_size; 767 u32 pkt_alignment_factor; 768 u32 af_list_offset; 769 u32 af_list_size; 770 }; 771 772 /* Call manager devices only: Information about an address family */ 773 /* supported by the device is appended to the response to NdisInitialize. */ 774 struct rndis_co_address_family { 775 u32 address_family; 776 u32 major_ver; 777 u32 minor_ver; 778 }; 779 780 /* NdisHalt message */ 781 struct rndis_halt_request { 782 u32 req_id; 783 }; 784 785 /* NdisQueryRequest message */ 786 struct rndis_query_request { 787 u32 req_id; 788 u32 oid; 789 u32 info_buflen; 790 u32 info_buf_offset; 791 u32 dev_vc_handle; 792 }; 793 794 /* Response to NdisQueryRequest */ 795 struct rndis_query_complete { 796 u32 req_id; 797 u32 status; 798 u32 info_buflen; 799 u32 info_buf_offset; 800 }; 801 802 /* NdisSetRequest message */ 803 struct rndis_set_request { 804 u32 req_id; 805 u32 oid; 806 u32 info_buflen; 807 u32 info_buf_offset; 808 u32 dev_vc_handle; 809 }; 810 811 /* Response to NdisSetRequest */ 812 struct rndis_set_complete { 813 u32 req_id; 814 u32 status; 815 }; 816 817 /* NdisReset message */ 818 struct rndis_reset_request { 819 u32 reserved; 820 }; 821 822 /* Response to NdisReset */ 823 struct rndis_reset_complete { 824 u32 status; 825 u32 addressing_reset; 826 }; 827 828 /* NdisMIndicateStatus message */ 829 struct rndis_indicate_status { 830 u32 status; 831 u32 status_buflen; 832 u32 status_buf_offset; 833 }; 834 835 /* Diagnostic information passed as the status buffer in */ 836 /* struct rndis_indicate_status messages signifying error conditions. */ 837 struct rndis_diagnostic_info { 838 u32 diag_status; 839 u32 error_offset; 840 }; 841 842 /* NdisKeepAlive message */ 843 struct rndis_keepalive_request { 844 u32 req_id; 845 }; 846 847 /* Response to NdisKeepAlive */ 848 struct rndis_keepalive_complete { 849 u32 req_id; 850 u32 status; 851 }; 852 853 /* 854 * Data message. All Offset fields contain byte offsets from the beginning of 855 * struct rndis_packet. All Length fields are in bytes. VcHandle is set 856 * to 0 for connectionless data, otherwise it contains the VC handle. 857 */ 858 struct rndis_packet { 859 u32 data_offset; 860 u32 data_len; 861 u32 oob_data_offset; 862 u32 oob_data_len; 863 u32 num_oob_data_elements; 864 u32 per_pkt_info_offset; 865 u32 per_pkt_info_len; 866 u32 vc_handle; 867 u32 reserved; 868 }; 869 870 /* Optional Out of Band data associated with a Data message. */ 871 struct rndis_oobd { 872 u32 size; 873 u32 type; 874 u32 class_info_offset; 875 }; 876 877 /* Packet extension field contents associated with a Data message. */ 878 struct rndis_per_packet_info { 879 u32 size; 880 u32 type; 881 u32 ppi_offset; 882 }; 883 884 enum ndis_per_pkt_info_type { 885 TCPIP_CHKSUM_PKTINFO, 886 IPSEC_PKTINFO, 887 TCP_LARGESEND_PKTINFO, 888 CLASSIFICATION_HANDLE_PKTINFO, 889 NDIS_RESERVED, 890 SG_LIST_PKTINFO, 891 IEEE_8021Q_INFO, 892 ORIGINAL_PKTINFO, 893 PACKET_CANCEL_ID, 894 NBL_HASH_VALUE = PACKET_CANCEL_ID, 895 ORIGINAL_NET_BUFLIST, 896 CACHED_NET_BUFLIST, 897 SHORT_PKT_PADINFO, 898 MAX_PER_PKT_INFO 899 }; 900 901 struct ndis_pkt_8021q_info { 902 union { 903 struct { 904 u32 pri:3; /* User Priority */ 905 u32 cfi:1; /* Canonical Format ID */ 906 u32 vlanid:12; /* VLAN ID */ 907 u32 reserved:16; 908 }; 909 u32 value; 910 }; 911 }; 912 913 struct ndis_oject_header { 914 u8 type; 915 u8 revision; 916 u16 size; 917 }; 918 919 #define NDIS_OBJECT_TYPE_DEFAULT 0x80 920 #define NDIS_OFFLOAD_PARAMETERS_REVISION_3 3 921 #define NDIS_OFFLOAD_PARAMETERS_NO_CHANGE 0 922 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_DISABLED 1 923 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_ENABLED 2 924 #define NDIS_OFFLOAD_PARAMETERS_LSOV1_ENABLED 2 925 #define NDIS_OFFLOAD_PARAMETERS_RSC_DISABLED 1 926 #define NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED 2 927 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_DISABLED 1 928 #define NDIS_OFFLOAD_PARAMETERS_TX_ENABLED_RX_DISABLED 2 929 #define NDIS_OFFLOAD_PARAMETERS_RX_ENABLED_TX_DISABLED 3 930 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED 4 931 932 #define NDIS_TCP_LARGE_SEND_OFFLOAD_V2_TYPE 1 933 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV4 0 934 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV6 1 935 936 #define VERSION_4_OFFLOAD_SIZE 22 937 /* 938 * New offload OIDs for NDIS 6 939 */ 940 #define OID_TCP_OFFLOAD_CURRENT_CONFIG 0xFC01020B /* query only */ 941 #define OID_TCP_OFFLOAD_PARAMETERS 0xFC01020C /* set only */ 942 #define OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020D/* query only */ 943 #define OID_TCP_CONNECTION_OFFLOAD_CURRENT_CONFIG 0xFC01020E /* query only */ 944 #define OID_TCP_CONNECTION_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020F /* query */ 945 #define OID_OFFLOAD_ENCAPSULATION 0x0101010A /* set/query */ 946 947 struct ndis_offload_params { 948 struct ndis_oject_header header; 949 u8 ip_v4_csum; 950 u8 tcp_ip_v4_csum; 951 u8 udp_ip_v4_csum; 952 u8 tcp_ip_v6_csum; 953 u8 udp_ip_v6_csum; 954 u8 lso_v1; 955 u8 ip_sec_v1; 956 u8 lso_v2_ipv4; 957 u8 lso_v2_ipv6; 958 u8 tcp_connection_ip_v4; 959 u8 tcp_connection_ip_v6; 960 u32 flags; 961 u8 ip_sec_v2; 962 u8 ip_sec_v2_ip_v4; 963 struct { 964 u8 rsc_ip_v4; 965 u8 rsc_ip_v6; 966 }; 967 struct { 968 u8 encapsulated_packet_task_offload; 969 u8 encapsulation_types; 970 }; 971 }; 972 973 struct ndis_tcp_ip_checksum_info { 974 union { 975 struct { 976 u32 is_ipv4:1; 977 u32 is_ipv6:1; 978 u32 tcp_checksum:1; 979 u32 udp_checksum:1; 980 u32 ip_header_checksum:1; 981 u32 reserved:11; 982 u32 tcp_header_offset:10; 983 } transmit; 984 struct { 985 u32 tcp_checksum_failed:1; 986 u32 udp_checksum_failed:1; 987 u32 ip_checksum_failed:1; 988 u32 tcp_checksum_succeeded:1; 989 u32 udp_checksum_succeeded:1; 990 u32 ip_checksum_succeeded:1; 991 u32 loopback:1; 992 u32 tcp_checksum_value_invalid:1; 993 u32 ip_checksum_value_invalid:1; 994 } receive; 995 u32 value; 996 }; 997 }; 998 999 struct ndis_tcp_lso_info { 1000 union { 1001 struct { 1002 u32 unused:30; 1003 u32 type:1; 1004 u32 reserved2:1; 1005 } transmit; 1006 struct { 1007 u32 mss:20; 1008 u32 tcp_header_offset:10; 1009 u32 type:1; 1010 u32 reserved2:1; 1011 } lso_v1_transmit; 1012 struct { 1013 u32 tcp_payload:30; 1014 u32 type:1; 1015 u32 reserved2:1; 1016 } lso_v1_transmit_complete; 1017 struct { 1018 u32 mss:20; 1019 u32 tcp_header_offset:10; 1020 u32 type:1; 1021 u32 ip_version:1; 1022 } lso_v2_transmit; 1023 struct { 1024 u32 reserved:30; 1025 u32 type:1; 1026 u32 reserved2:1; 1027 } lso_v2_transmit_complete; 1028 u32 value; 1029 }; 1030 }; 1031 1032 #define NDIS_VLAN_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \ 1033 sizeof(struct ndis_pkt_8021q_info)) 1034 1035 #define NDIS_CSUM_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \ 1036 sizeof(struct ndis_tcp_ip_checksum_info)) 1037 1038 #define NDIS_LSO_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \ 1039 sizeof(struct ndis_tcp_lso_info)) 1040 1041 #define NDIS_HASH_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \ 1042 sizeof(u32)) 1043 1044 /* Total size of all PPI data */ 1045 #define NDIS_ALL_PPI_SIZE (NDIS_VLAN_PPI_SIZE + NDIS_CSUM_PPI_SIZE + \ 1046 NDIS_LSO_PPI_SIZE + NDIS_HASH_PPI_SIZE) 1047 1048 /* Format of Information buffer passed in a SetRequest for the OID */ 1049 /* OID_GEN_RNDIS_CONFIG_PARAMETER. */ 1050 struct rndis_config_parameter_info { 1051 u32 parameter_name_offset; 1052 u32 parameter_name_length; 1053 u32 parameter_type; 1054 u32 parameter_value_offset; 1055 u32 parameter_value_length; 1056 }; 1057 1058 /* Values for ParameterType in struct rndis_config_parameter_info */ 1059 #define RNDIS_CONFIG_PARAM_TYPE_INTEGER 0 1060 #define RNDIS_CONFIG_PARAM_TYPE_STRING 2 1061 1062 /* CONDIS Miniport messages for connection oriented devices */ 1063 /* that do not implement a call manager. */ 1064 1065 /* CoNdisMiniportCreateVc message */ 1066 struct rcondis_mp_create_vc { 1067 u32 req_id; 1068 u32 ndis_vc_handle; 1069 }; 1070 1071 /* Response to CoNdisMiniportCreateVc */ 1072 struct rcondis_mp_create_vc_complete { 1073 u32 req_id; 1074 u32 dev_vc_handle; 1075 u32 status; 1076 }; 1077 1078 /* CoNdisMiniportDeleteVc message */ 1079 struct rcondis_mp_delete_vc { 1080 u32 req_id; 1081 u32 dev_vc_handle; 1082 }; 1083 1084 /* Response to CoNdisMiniportDeleteVc */ 1085 struct rcondis_mp_delete_vc_complete { 1086 u32 req_id; 1087 u32 status; 1088 }; 1089 1090 /* CoNdisMiniportQueryRequest message */ 1091 struct rcondis_mp_query_request { 1092 u32 req_id; 1093 u32 request_type; 1094 u32 oid; 1095 u32 dev_vc_handle; 1096 u32 info_buflen; 1097 u32 info_buf_offset; 1098 }; 1099 1100 /* CoNdisMiniportSetRequest message */ 1101 struct rcondis_mp_set_request { 1102 u32 req_id; 1103 u32 request_type; 1104 u32 oid; 1105 u32 dev_vc_handle; 1106 u32 info_buflen; 1107 u32 info_buf_offset; 1108 }; 1109 1110 /* CoNdisIndicateStatus message */ 1111 struct rcondis_indicate_status { 1112 u32 ndis_vc_handle; 1113 u32 status; 1114 u32 status_buflen; 1115 u32 status_buf_offset; 1116 }; 1117 1118 /* CONDIS Call/VC parameters */ 1119 struct rcondis_specific_parameters { 1120 u32 parameter_type; 1121 u32 parameter_length; 1122 u32 parameter_lffset; 1123 }; 1124 1125 struct rcondis_media_parameters { 1126 u32 flags; 1127 u32 reserved1; 1128 u32 reserved2; 1129 struct rcondis_specific_parameters media_specific; 1130 }; 1131 1132 struct rndis_flowspec { 1133 u32 token_rate; 1134 u32 token_bucket_size; 1135 u32 peak_bandwidth; 1136 u32 latency; 1137 u32 delay_variation; 1138 u32 service_type; 1139 u32 max_sdu_size; 1140 u32 minimum_policed_size; 1141 }; 1142 1143 struct rcondis_call_manager_parameters { 1144 struct rndis_flowspec transmit; 1145 struct rndis_flowspec receive; 1146 struct rcondis_specific_parameters call_mgr_specific; 1147 }; 1148 1149 /* CoNdisMiniportActivateVc message */ 1150 struct rcondis_mp_activate_vc_request { 1151 u32 req_id; 1152 u32 flags; 1153 u32 dev_vc_handle; 1154 u32 media_params_offset; 1155 u32 media_params_length; 1156 u32 call_mgr_params_offset; 1157 u32 call_mgr_params_length; 1158 }; 1159 1160 /* Response to CoNdisMiniportActivateVc */ 1161 struct rcondis_mp_activate_vc_complete { 1162 u32 req_id; 1163 u32 status; 1164 }; 1165 1166 /* CoNdisMiniportDeactivateVc message */ 1167 struct rcondis_mp_deactivate_vc_request { 1168 u32 req_id; 1169 u32 flags; 1170 u32 dev_vc_handle; 1171 }; 1172 1173 /* Response to CoNdisMiniportDeactivateVc */ 1174 struct rcondis_mp_deactivate_vc_complete { 1175 u32 req_id; 1176 u32 status; 1177 }; 1178 1179 1180 /* union with all of the RNDIS messages */ 1181 union rndis_message_container { 1182 struct rndis_packet pkt; 1183 struct rndis_initialize_request init_req; 1184 struct rndis_halt_request halt_req; 1185 struct rndis_query_request query_req; 1186 struct rndis_set_request set_req; 1187 struct rndis_reset_request reset_req; 1188 struct rndis_keepalive_request keep_alive_req; 1189 struct rndis_indicate_status indicate_status; 1190 struct rndis_initialize_complete init_complete; 1191 struct rndis_query_complete query_complete; 1192 struct rndis_set_complete set_complete; 1193 struct rndis_reset_complete reset_complete; 1194 struct rndis_keepalive_complete keep_alive_complete; 1195 struct rcondis_mp_create_vc co_miniport_create_vc; 1196 struct rcondis_mp_delete_vc co_miniport_delete_vc; 1197 struct rcondis_indicate_status co_indicate_status; 1198 struct rcondis_mp_activate_vc_request co_miniport_activate_vc; 1199 struct rcondis_mp_deactivate_vc_request co_miniport_deactivate_vc; 1200 struct rcondis_mp_create_vc_complete co_miniport_create_vc_complete; 1201 struct rcondis_mp_delete_vc_complete co_miniport_delete_vc_complete; 1202 struct rcondis_mp_activate_vc_complete co_miniport_activate_vc_complete; 1203 struct rcondis_mp_deactivate_vc_complete 1204 co_miniport_deactivate_vc_complete; 1205 }; 1206 1207 /* Remote NDIS message format */ 1208 struct rndis_message { 1209 u32 ndis_msg_type; 1210 1211 /* Total length of this message, from the beginning */ 1212 /* of the sruct rndis_message, in bytes. */ 1213 u32 msg_len; 1214 1215 /* Actual message */ 1216 union rndis_message_container msg; 1217 }; 1218 1219 1220 /* Handy macros */ 1221 1222 /* get the size of an RNDIS message. Pass in the message type, */ 1223 /* struct rndis_set_request, struct rndis_packet for example */ 1224 #define RNDIS_MESSAGE_SIZE(msg) \ 1225 (sizeof(msg) + (sizeof(struct rndis_message) - \ 1226 sizeof(union rndis_message_container))) 1227 1228 /* get pointer to info buffer with message pointer */ 1229 #define MESSAGE_TO_INFO_BUFFER(msg) \ 1230 (((unsigned char *)(msg)) + msg->info_buf_offset) 1231 1232 /* get pointer to status buffer with message pointer */ 1233 #define MESSAGE_TO_STATUS_BUFFER(msg) \ 1234 (((unsigned char *)(msg)) + msg->status_buf_offset) 1235 1236 /* get pointer to OOBD buffer with message pointer */ 1237 #define MESSAGE_TO_OOBD_BUFFER(msg) \ 1238 (((unsigned char *)(msg)) + msg->oob_data_offset) 1239 1240 /* get pointer to data buffer with message pointer */ 1241 #define MESSAGE_TO_DATA_BUFFER(msg) \ 1242 (((unsigned char *)(msg)) + msg->per_pkt_info_offset) 1243 1244 /* get pointer to contained message from NDIS_MESSAGE pointer */ 1245 #define RNDIS_MESSAGE_PTR_TO_MESSAGE_PTR(rndis_msg) \ 1246 ((void *) &rndis_msg->msg) 1247 1248 /* get pointer to contained message from NDIS_MESSAGE pointer */ 1249 #define RNDIS_MESSAGE_RAW_PTR_TO_MESSAGE_PTR(rndis_msg) \ 1250 ((void *) rndis_msg) 1251 1252 1253 #define __struct_bcount(x) 1254 1255 1256 1257 #define RNDIS_HEADER_SIZE (sizeof(struct rndis_message) - \ 1258 sizeof(union rndis_message_container)) 1259 1260 #define RNDIS_AND_PPI_SIZE (sizeof(struct rndis_message) + NDIS_ALL_PPI_SIZE) 1261 1262 #define NDIS_PACKET_TYPE_DIRECTED 0x00000001 1263 #define NDIS_PACKET_TYPE_MULTICAST 0x00000002 1264 #define NDIS_PACKET_TYPE_ALL_MULTICAST 0x00000004 1265 #define NDIS_PACKET_TYPE_BROADCAST 0x00000008 1266 #define NDIS_PACKET_TYPE_SOURCE_ROUTING 0x00000010 1267 #define NDIS_PACKET_TYPE_PROMISCUOUS 0x00000020 1268 #define NDIS_PACKET_TYPE_SMT 0x00000040 1269 #define NDIS_PACKET_TYPE_ALL_LOCAL 0x00000080 1270 #define NDIS_PACKET_TYPE_GROUP 0x00000100 1271 #define NDIS_PACKET_TYPE_ALL_FUNCTIONAL 0x00000200 1272 #define NDIS_PACKET_TYPE_FUNCTIONAL 0x00000400 1273 #define NDIS_PACKET_TYPE_MAC_FRAME 0x00000800 1274 1275 #define INFO_IPV4 2 1276 #define INFO_IPV6 4 1277 #define INFO_TCP 2 1278 #define INFO_UDP 4 1279 1280 #define TRANSPORT_INFO_NOT_IP 0 1281 #define TRANSPORT_INFO_IPV4_TCP ((INFO_IPV4 << 16) | INFO_TCP) 1282 #define TRANSPORT_INFO_IPV4_UDP ((INFO_IPV4 << 16) | INFO_UDP) 1283 #define TRANSPORT_INFO_IPV6_TCP ((INFO_IPV6 << 16) | INFO_TCP) 1284 #define TRANSPORT_INFO_IPV6_UDP ((INFO_IPV6 << 16) | INFO_UDP) 1285 1286 #endif /* _HYPERV_NET_H */ 1287