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 net_device *ndev; 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 struct netvsc_device; 177 int netvsc_device_add(struct hv_device *device, void *additional_info); 178 int netvsc_device_remove(struct hv_device *device); 179 int netvsc_send(struct hv_device *device, 180 struct hv_netvsc_packet *packet, 181 struct rndis_message *rndis_msg, 182 struct hv_page_buffer **page_buffer, 183 struct sk_buff *skb); 184 void netvsc_linkstatus_callback(struct hv_device *device_obj, 185 struct rndis_message *resp); 186 int netvsc_recv_callback(struct hv_device *device_obj, 187 struct hv_netvsc_packet *packet, 188 void **data, 189 struct ndis_tcp_ip_checksum_info *csum_info, 190 struct vmbus_channel *channel, 191 u16 vlan_tci); 192 void netvsc_channel_cb(void *context); 193 int rndis_filter_open(struct netvsc_device *nvdev); 194 int rndis_filter_close(struct netvsc_device *nvdev); 195 int rndis_filter_device_add(struct hv_device *dev, 196 void *additional_info); 197 void rndis_filter_device_remove(struct hv_device *dev); 198 int rndis_filter_receive(struct hv_device *dev, 199 struct hv_netvsc_packet *pkt, 200 void **data, 201 struct vmbus_channel *channel); 202 203 int rndis_filter_set_packet_filter(struct rndis_device *dev, u32 new_filter); 204 int rndis_filter_set_device_mac(struct net_device *ndev, char *mac); 205 206 void netvsc_switch_datapath(struct net_device *nv_dev, bool vf); 207 208 #define NVSP_INVALID_PROTOCOL_VERSION ((u32)0xFFFFFFFF) 209 210 #define NVSP_PROTOCOL_VERSION_1 2 211 #define NVSP_PROTOCOL_VERSION_2 0x30002 212 #define NVSP_PROTOCOL_VERSION_4 0x40000 213 #define NVSP_PROTOCOL_VERSION_5 0x50000 214 215 enum { 216 NVSP_MSG_TYPE_NONE = 0, 217 218 /* Init Messages */ 219 NVSP_MSG_TYPE_INIT = 1, 220 NVSP_MSG_TYPE_INIT_COMPLETE = 2, 221 222 NVSP_VERSION_MSG_START = 100, 223 224 /* Version 1 Messages */ 225 NVSP_MSG1_TYPE_SEND_NDIS_VER = NVSP_VERSION_MSG_START, 226 227 NVSP_MSG1_TYPE_SEND_RECV_BUF, 228 NVSP_MSG1_TYPE_SEND_RECV_BUF_COMPLETE, 229 NVSP_MSG1_TYPE_REVOKE_RECV_BUF, 230 231 NVSP_MSG1_TYPE_SEND_SEND_BUF, 232 NVSP_MSG1_TYPE_SEND_SEND_BUF_COMPLETE, 233 NVSP_MSG1_TYPE_REVOKE_SEND_BUF, 234 235 NVSP_MSG1_TYPE_SEND_RNDIS_PKT, 236 NVSP_MSG1_TYPE_SEND_RNDIS_PKT_COMPLETE, 237 238 /* Version 2 messages */ 239 NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF, 240 NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF_COMP, 241 NVSP_MSG2_TYPE_REVOKE_CHIMNEY_DELEGATED_BUF, 242 243 NVSP_MSG2_TYPE_RESUME_CHIMNEY_RX_INDICATION, 244 245 NVSP_MSG2_TYPE_TERMINATE_CHIMNEY, 246 NVSP_MSG2_TYPE_TERMINATE_CHIMNEY_COMP, 247 248 NVSP_MSG2_TYPE_INDICATE_CHIMNEY_EVENT, 249 250 NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT, 251 NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT_COMP, 252 253 NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ, 254 NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ_COMP, 255 256 NVSP_MSG2_TYPE_ALLOC_RXBUF, 257 NVSP_MSG2_TYPE_ALLOC_RXBUF_COMP, 258 259 NVSP_MSG2_TYPE_FREE_RXBUF, 260 261 NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT, 262 NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT_COMP, 263 264 NVSP_MSG2_TYPE_SEND_NDIS_CONFIG, 265 266 NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE, 267 NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP, 268 269 NVSP_MSG2_MAX = NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP, 270 271 /* Version 4 messages */ 272 NVSP_MSG4_TYPE_SEND_VF_ASSOCIATION, 273 NVSP_MSG4_TYPE_SWITCH_DATA_PATH, 274 NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED, 275 276 NVSP_MSG4_MAX = NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED, 277 278 /* Version 5 messages */ 279 NVSP_MSG5_TYPE_OID_QUERY_EX, 280 NVSP_MSG5_TYPE_OID_QUERY_EX_COMP, 281 NVSP_MSG5_TYPE_SUBCHANNEL, 282 NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE, 283 284 NVSP_MSG5_MAX = NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE, 285 }; 286 287 enum { 288 NVSP_STAT_NONE = 0, 289 NVSP_STAT_SUCCESS, 290 NVSP_STAT_FAIL, 291 NVSP_STAT_PROTOCOL_TOO_NEW, 292 NVSP_STAT_PROTOCOL_TOO_OLD, 293 NVSP_STAT_INVALID_RNDIS_PKT, 294 NVSP_STAT_BUSY, 295 NVSP_STAT_PROTOCOL_UNSUPPORTED, 296 NVSP_STAT_MAX, 297 }; 298 299 struct nvsp_message_header { 300 u32 msg_type; 301 }; 302 303 /* Init Messages */ 304 305 /* 306 * This message is used by the VSC to initialize the channel after the channels 307 * has been opened. This message should never include anything other then 308 * versioning (i.e. this message will be the same for ever). 309 */ 310 struct nvsp_message_init { 311 u32 min_protocol_ver; 312 u32 max_protocol_ver; 313 } __packed; 314 315 /* 316 * This message is used by the VSP to complete the initialization of the 317 * channel. This message should never include anything other then versioning 318 * (i.e. this message will be the same for ever). 319 */ 320 struct nvsp_message_init_complete { 321 u32 negotiated_protocol_ver; 322 u32 max_mdl_chain_len; 323 u32 status; 324 } __packed; 325 326 union nvsp_message_init_uber { 327 struct nvsp_message_init init; 328 struct nvsp_message_init_complete init_complete; 329 } __packed; 330 331 /* Version 1 Messages */ 332 333 /* 334 * This message is used by the VSC to send the NDIS version to the VSP. The VSP 335 * can use this information when handling OIDs sent by the VSC. 336 */ 337 struct nvsp_1_message_send_ndis_version { 338 u32 ndis_major_ver; 339 u32 ndis_minor_ver; 340 } __packed; 341 342 /* 343 * This message is used by the VSC to send a receive buffer to the VSP. The VSP 344 * can then use the receive buffer to send data to the VSC. 345 */ 346 struct nvsp_1_message_send_receive_buffer { 347 u32 gpadl_handle; 348 u16 id; 349 } __packed; 350 351 struct nvsp_1_receive_buffer_section { 352 u32 offset; 353 u32 sub_alloc_size; 354 u32 num_sub_allocs; 355 u32 end_offset; 356 } __packed; 357 358 /* 359 * This message is used by the VSP to acknowledge a receive buffer send by the 360 * VSC. This message must be sent by the VSP before the VSP uses the receive 361 * buffer. 362 */ 363 struct nvsp_1_message_send_receive_buffer_complete { 364 u32 status; 365 u32 num_sections; 366 367 /* 368 * The receive buffer is split into two parts, a large suballocation 369 * section and a small suballocation section. These sections are then 370 * suballocated by a certain size. 371 */ 372 373 /* 374 * For example, the following break up of the receive buffer has 6 375 * large suballocations and 10 small suballocations. 376 */ 377 378 /* 379 * | Large Section | | Small Section | 380 * ------------------------------------------------------------ 381 * | | | | | | | | | | | | | | | | | | 382 * | | 383 * LargeOffset SmallOffset 384 */ 385 386 struct nvsp_1_receive_buffer_section sections[1]; 387 } __packed; 388 389 /* 390 * This message is sent by the VSC to revoke the receive buffer. After the VSP 391 * completes this transaction, the vsp should never use the receive buffer 392 * again. 393 */ 394 struct nvsp_1_message_revoke_receive_buffer { 395 u16 id; 396 }; 397 398 /* 399 * This message is used by the VSC to send a send buffer to the VSP. The VSC 400 * can then use the send buffer to send data to the VSP. 401 */ 402 struct nvsp_1_message_send_send_buffer { 403 u32 gpadl_handle; 404 u16 id; 405 } __packed; 406 407 /* 408 * This message is used by the VSP to acknowledge a send buffer sent by the 409 * VSC. This message must be sent by the VSP before the VSP uses the sent 410 * buffer. 411 */ 412 struct nvsp_1_message_send_send_buffer_complete { 413 u32 status; 414 415 /* 416 * The VSC gets to choose the size of the send buffer and the VSP gets 417 * to choose the sections size of the buffer. This was done to enable 418 * dynamic reconfigurations when the cost of GPA-direct buffers 419 * decreases. 420 */ 421 u32 section_size; 422 } __packed; 423 424 /* 425 * This message is sent by the VSC to revoke the send buffer. After the VSP 426 * completes this transaction, the vsp should never use the send buffer again. 427 */ 428 struct nvsp_1_message_revoke_send_buffer { 429 u16 id; 430 }; 431 432 /* 433 * This message is used by both the VSP and the VSC to send a RNDIS message to 434 * the opposite channel endpoint. 435 */ 436 struct nvsp_1_message_send_rndis_packet { 437 /* 438 * This field is specified by RNIDS. They assume there's two different 439 * channels of communication. However, the Network VSP only has one. 440 * Therefore, the channel travels with the RNDIS packet. 441 */ 442 u32 channel_type; 443 444 /* 445 * This field is used to send part or all of the data through a send 446 * buffer. This values specifies an index into the send buffer. If the 447 * index is 0xFFFFFFFF, then the send buffer is not being used and all 448 * of the data was sent through other VMBus mechanisms. 449 */ 450 u32 send_buf_section_index; 451 u32 send_buf_section_size; 452 } __packed; 453 454 /* 455 * This message is used by both the VSP and the VSC to complete a RNDIS message 456 * to the opposite channel endpoint. At this point, the initiator of this 457 * message cannot use any resources associated with the original RNDIS packet. 458 */ 459 struct nvsp_1_message_send_rndis_packet_complete { 460 u32 status; 461 }; 462 463 union nvsp_1_message_uber { 464 struct nvsp_1_message_send_ndis_version send_ndis_ver; 465 466 struct nvsp_1_message_send_receive_buffer send_recv_buf; 467 struct nvsp_1_message_send_receive_buffer_complete 468 send_recv_buf_complete; 469 struct nvsp_1_message_revoke_receive_buffer revoke_recv_buf; 470 471 struct nvsp_1_message_send_send_buffer send_send_buf; 472 struct nvsp_1_message_send_send_buffer_complete send_send_buf_complete; 473 struct nvsp_1_message_revoke_send_buffer revoke_send_buf; 474 475 struct nvsp_1_message_send_rndis_packet send_rndis_pkt; 476 struct nvsp_1_message_send_rndis_packet_complete 477 send_rndis_pkt_complete; 478 } __packed; 479 480 481 /* 482 * Network VSP protocol version 2 messages: 483 */ 484 struct nvsp_2_vsc_capability { 485 union { 486 u64 data; 487 struct { 488 u64 vmq:1; 489 u64 chimney:1; 490 u64 sriov:1; 491 u64 ieee8021q:1; 492 u64 correlation_id:1; 493 }; 494 }; 495 } __packed; 496 497 struct nvsp_2_send_ndis_config { 498 u32 mtu; 499 u32 reserved; 500 struct nvsp_2_vsc_capability capability; 501 } __packed; 502 503 /* Allocate receive buffer */ 504 struct nvsp_2_alloc_rxbuf { 505 /* Allocation ID to match the allocation request and response */ 506 u32 alloc_id; 507 508 /* Length of the VM shared memory receive buffer that needs to 509 * be allocated 510 */ 511 u32 len; 512 } __packed; 513 514 /* Allocate receive buffer complete */ 515 struct nvsp_2_alloc_rxbuf_comp { 516 /* The NDIS_STATUS code for buffer allocation */ 517 u32 status; 518 519 u32 alloc_id; 520 521 /* GPADL handle for the allocated receive buffer */ 522 u32 gpadl_handle; 523 524 /* Receive buffer ID */ 525 u64 recv_buf_id; 526 } __packed; 527 528 struct nvsp_2_free_rxbuf { 529 u64 recv_buf_id; 530 } __packed; 531 532 union nvsp_2_message_uber { 533 struct nvsp_2_send_ndis_config send_ndis_config; 534 struct nvsp_2_alloc_rxbuf alloc_rxbuf; 535 struct nvsp_2_alloc_rxbuf_comp alloc_rxbuf_comp; 536 struct nvsp_2_free_rxbuf free_rxbuf; 537 } __packed; 538 539 struct nvsp_4_send_vf_association { 540 /* 1: allocated, serial number is valid. 0: not allocated */ 541 u32 allocated; 542 543 /* Serial number of the VF to team with */ 544 u32 serial; 545 } __packed; 546 547 enum nvsp_vm_datapath { 548 NVSP_DATAPATH_SYNTHETIC = 0, 549 NVSP_DATAPATH_VF, 550 NVSP_DATAPATH_MAX 551 }; 552 553 struct nvsp_4_sw_datapath { 554 u32 active_datapath; /* active data path in VM */ 555 } __packed; 556 557 union nvsp_4_message_uber { 558 struct nvsp_4_send_vf_association vf_assoc; 559 struct nvsp_4_sw_datapath active_dp; 560 } __packed; 561 562 enum nvsp_subchannel_operation { 563 NVSP_SUBCHANNEL_NONE = 0, 564 NVSP_SUBCHANNEL_ALLOCATE, 565 NVSP_SUBCHANNEL_MAX 566 }; 567 568 struct nvsp_5_subchannel_request { 569 u32 op; 570 u32 num_subchannels; 571 } __packed; 572 573 struct nvsp_5_subchannel_complete { 574 u32 status; 575 u32 num_subchannels; /* Actual number of subchannels allocated */ 576 } __packed; 577 578 struct nvsp_5_send_indirect_table { 579 /* The number of entries in the send indirection table */ 580 u32 count; 581 582 /* The offset of the send indireciton table from top of this struct. 583 * The send indirection table tells which channel to put the send 584 * traffic on. Each entry is a channel number. 585 */ 586 u32 offset; 587 } __packed; 588 589 union nvsp_5_message_uber { 590 struct nvsp_5_subchannel_request subchn_req; 591 struct nvsp_5_subchannel_complete subchn_comp; 592 struct nvsp_5_send_indirect_table send_table; 593 } __packed; 594 595 union nvsp_all_messages { 596 union nvsp_message_init_uber init_msg; 597 union nvsp_1_message_uber v1_msg; 598 union nvsp_2_message_uber v2_msg; 599 union nvsp_4_message_uber v4_msg; 600 union nvsp_5_message_uber v5_msg; 601 } __packed; 602 603 /* ALL Messages */ 604 struct nvsp_message { 605 struct nvsp_message_header hdr; 606 union nvsp_all_messages msg; 607 } __packed; 608 609 610 #define NETVSC_MTU 65536 611 #define NETVSC_MTU_MIN 68 612 613 #define NETVSC_RECEIVE_BUFFER_SIZE (1024*1024*16) /* 16MB */ 614 #define NETVSC_RECEIVE_BUFFER_SIZE_LEGACY (1024*1024*15) /* 15MB */ 615 #define NETVSC_SEND_BUFFER_SIZE (1024 * 1024 * 15) /* 15MB */ 616 #define NETVSC_INVALID_INDEX -1 617 618 619 #define NETVSC_RECEIVE_BUFFER_ID 0xcafe 620 #define NETVSC_SEND_BUFFER_ID 0 621 622 #define NETVSC_PACKET_SIZE 4096 623 624 #define VRSS_SEND_TAB_SIZE 16 625 #define VRSS_CHANNEL_MAX 64 626 627 #define RNDIS_MAX_PKT_DEFAULT 8 628 #define RNDIS_PKT_ALIGN_DEFAULT 8 629 630 struct multi_send_data { 631 struct sk_buff *skb; /* skb containing the pkt */ 632 struct hv_netvsc_packet *pkt; /* netvsc pkt pending */ 633 u32 count; /* counter of batched packets */ 634 }; 635 636 struct netvsc_stats { 637 u64 packets; 638 u64 bytes; 639 struct u64_stats_sync syncp; 640 }; 641 642 struct netvsc_reconfig { 643 struct list_head list; 644 u32 event; 645 }; 646 647 /* The context of the netvsc device */ 648 struct net_device_context { 649 /* point back to our device context */ 650 struct hv_device *device_ctx; 651 /* netvsc_device */ 652 struct netvsc_device *nvdev; 653 /* reconfigure work */ 654 struct delayed_work dwork; 655 /* last reconfig time */ 656 unsigned long last_reconfig; 657 /* reconfig events */ 658 struct list_head reconfig_events; 659 /* list protection */ 660 spinlock_t lock; 661 662 struct work_struct work; 663 u32 msg_enable; /* debug level */ 664 665 struct netvsc_stats __percpu *tx_stats; 666 struct netvsc_stats __percpu *rx_stats; 667 668 /* Ethtool settings */ 669 u8 duplex; 670 u32 speed; 671 672 /* the device is going away */ 673 bool start_remove; 674 675 /* State to manage the associated VF interface. */ 676 struct net_device *vf_netdev; 677 bool vf_inject; 678 atomic_t vf_use_cnt; 679 /* 1: allocated, serial number is valid. 0: not allocated */ 680 u32 vf_alloc; 681 /* Serial number of the VF to team with */ 682 u32 vf_serial; 683 }; 684 685 /* Per netvsc device */ 686 struct netvsc_device { 687 u32 nvsp_version; 688 689 atomic_t num_outstanding_sends; 690 wait_queue_head_t wait_drain; 691 bool destroy; 692 693 /* Receive buffer allocated by us but manages by NetVSP */ 694 void *recv_buf; 695 u32 recv_buf_size; 696 u32 recv_buf_gpadl_handle; 697 u32 recv_section_cnt; 698 struct nvsp_1_receive_buffer_section *recv_section; 699 700 /* Send buffer allocated by us */ 701 void *send_buf; 702 u32 send_buf_size; 703 u32 send_buf_gpadl_handle; 704 u32 send_section_cnt; 705 u32 send_section_size; 706 unsigned long *send_section_map; 707 int map_words; 708 709 /* Used for NetVSP initialization protocol */ 710 struct completion channel_init_wait; 711 struct nvsp_message channel_init_pkt; 712 713 struct nvsp_message revoke_packet; 714 /* unsigned char HwMacAddr[HW_MACADDR_LEN]; */ 715 716 struct vmbus_channel *chn_table[VRSS_CHANNEL_MAX]; 717 u32 send_table[VRSS_SEND_TAB_SIZE]; 718 u32 max_chn; 719 u32 num_chn; 720 spinlock_t sc_lock; /* Protects num_sc_offered variable */ 721 u32 num_sc_offered; 722 atomic_t queue_sends[VRSS_CHANNEL_MAX]; 723 724 /* Holds rndis device info */ 725 void *extension; 726 727 int ring_size; 728 729 /* The primary channel callback buffer */ 730 unsigned char *cb_buffer; 731 /* The sub channel callback buffer */ 732 unsigned char *sub_cb_buf; 733 734 struct multi_send_data msd[VRSS_CHANNEL_MAX]; 735 u32 max_pkt; /* max number of pkt in one send, e.g. 8 */ 736 u32 pkt_align; /* alignment bytes, e.g. 8 */ 737 738 atomic_t open_cnt; 739 }; 740 741 static inline struct netvsc_device * 742 net_device_to_netvsc_device(struct net_device *ndev) 743 { 744 return ((struct net_device_context *)netdev_priv(ndev))->nvdev; 745 } 746 747 static inline struct netvsc_device * 748 hv_device_to_netvsc_device(struct hv_device *device) 749 { 750 return net_device_to_netvsc_device(hv_get_drvdata(device)); 751 } 752 753 /* NdisInitialize message */ 754 struct rndis_initialize_request { 755 u32 req_id; 756 u32 major_ver; 757 u32 minor_ver; 758 u32 max_xfer_size; 759 }; 760 761 /* Response to NdisInitialize */ 762 struct rndis_initialize_complete { 763 u32 req_id; 764 u32 status; 765 u32 major_ver; 766 u32 minor_ver; 767 u32 dev_flags; 768 u32 medium; 769 u32 max_pkt_per_msg; 770 u32 max_xfer_size; 771 u32 pkt_alignment_factor; 772 u32 af_list_offset; 773 u32 af_list_size; 774 }; 775 776 /* Call manager devices only: Information about an address family */ 777 /* supported by the device is appended to the response to NdisInitialize. */ 778 struct rndis_co_address_family { 779 u32 address_family; 780 u32 major_ver; 781 u32 minor_ver; 782 }; 783 784 /* NdisHalt message */ 785 struct rndis_halt_request { 786 u32 req_id; 787 }; 788 789 /* NdisQueryRequest message */ 790 struct rndis_query_request { 791 u32 req_id; 792 u32 oid; 793 u32 info_buflen; 794 u32 info_buf_offset; 795 u32 dev_vc_handle; 796 }; 797 798 /* Response to NdisQueryRequest */ 799 struct rndis_query_complete { 800 u32 req_id; 801 u32 status; 802 u32 info_buflen; 803 u32 info_buf_offset; 804 }; 805 806 /* NdisSetRequest message */ 807 struct rndis_set_request { 808 u32 req_id; 809 u32 oid; 810 u32 info_buflen; 811 u32 info_buf_offset; 812 u32 dev_vc_handle; 813 }; 814 815 /* Response to NdisSetRequest */ 816 struct rndis_set_complete { 817 u32 req_id; 818 u32 status; 819 }; 820 821 /* NdisReset message */ 822 struct rndis_reset_request { 823 u32 reserved; 824 }; 825 826 /* Response to NdisReset */ 827 struct rndis_reset_complete { 828 u32 status; 829 u32 addressing_reset; 830 }; 831 832 /* NdisMIndicateStatus message */ 833 struct rndis_indicate_status { 834 u32 status; 835 u32 status_buflen; 836 u32 status_buf_offset; 837 }; 838 839 /* Diagnostic information passed as the status buffer in */ 840 /* struct rndis_indicate_status messages signifying error conditions. */ 841 struct rndis_diagnostic_info { 842 u32 diag_status; 843 u32 error_offset; 844 }; 845 846 /* NdisKeepAlive message */ 847 struct rndis_keepalive_request { 848 u32 req_id; 849 }; 850 851 /* Response to NdisKeepAlive */ 852 struct rndis_keepalive_complete { 853 u32 req_id; 854 u32 status; 855 }; 856 857 /* 858 * Data message. All Offset fields contain byte offsets from the beginning of 859 * struct rndis_packet. All Length fields are in bytes. VcHandle is set 860 * to 0 for connectionless data, otherwise it contains the VC handle. 861 */ 862 struct rndis_packet { 863 u32 data_offset; 864 u32 data_len; 865 u32 oob_data_offset; 866 u32 oob_data_len; 867 u32 num_oob_data_elements; 868 u32 per_pkt_info_offset; 869 u32 per_pkt_info_len; 870 u32 vc_handle; 871 u32 reserved; 872 }; 873 874 /* Optional Out of Band data associated with a Data message. */ 875 struct rndis_oobd { 876 u32 size; 877 u32 type; 878 u32 class_info_offset; 879 }; 880 881 /* Packet extension field contents associated with a Data message. */ 882 struct rndis_per_packet_info { 883 u32 size; 884 u32 type; 885 u32 ppi_offset; 886 }; 887 888 enum ndis_per_pkt_info_type { 889 TCPIP_CHKSUM_PKTINFO, 890 IPSEC_PKTINFO, 891 TCP_LARGESEND_PKTINFO, 892 CLASSIFICATION_HANDLE_PKTINFO, 893 NDIS_RESERVED, 894 SG_LIST_PKTINFO, 895 IEEE_8021Q_INFO, 896 ORIGINAL_PKTINFO, 897 PACKET_CANCEL_ID, 898 NBL_HASH_VALUE = PACKET_CANCEL_ID, 899 ORIGINAL_NET_BUFLIST, 900 CACHED_NET_BUFLIST, 901 SHORT_PKT_PADINFO, 902 MAX_PER_PKT_INFO 903 }; 904 905 struct ndis_pkt_8021q_info { 906 union { 907 struct { 908 u32 pri:3; /* User Priority */ 909 u32 cfi:1; /* Canonical Format ID */ 910 u32 vlanid:12; /* VLAN ID */ 911 u32 reserved:16; 912 }; 913 u32 value; 914 }; 915 }; 916 917 struct ndis_oject_header { 918 u8 type; 919 u8 revision; 920 u16 size; 921 }; 922 923 #define NDIS_OBJECT_TYPE_DEFAULT 0x80 924 #define NDIS_OFFLOAD_PARAMETERS_REVISION_3 3 925 #define NDIS_OFFLOAD_PARAMETERS_NO_CHANGE 0 926 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_DISABLED 1 927 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_ENABLED 2 928 #define NDIS_OFFLOAD_PARAMETERS_LSOV1_ENABLED 2 929 #define NDIS_OFFLOAD_PARAMETERS_RSC_DISABLED 1 930 #define NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED 2 931 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_DISABLED 1 932 #define NDIS_OFFLOAD_PARAMETERS_TX_ENABLED_RX_DISABLED 2 933 #define NDIS_OFFLOAD_PARAMETERS_RX_ENABLED_TX_DISABLED 3 934 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED 4 935 936 #define NDIS_TCP_LARGE_SEND_OFFLOAD_V2_TYPE 1 937 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV4 0 938 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV6 1 939 940 #define VERSION_4_OFFLOAD_SIZE 22 941 /* 942 * New offload OIDs for NDIS 6 943 */ 944 #define OID_TCP_OFFLOAD_CURRENT_CONFIG 0xFC01020B /* query only */ 945 #define OID_TCP_OFFLOAD_PARAMETERS 0xFC01020C /* set only */ 946 #define OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020D/* query only */ 947 #define OID_TCP_CONNECTION_OFFLOAD_CURRENT_CONFIG 0xFC01020E /* query only */ 948 #define OID_TCP_CONNECTION_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020F /* query */ 949 #define OID_OFFLOAD_ENCAPSULATION 0x0101010A /* set/query */ 950 951 struct ndis_offload_params { 952 struct ndis_oject_header header; 953 u8 ip_v4_csum; 954 u8 tcp_ip_v4_csum; 955 u8 udp_ip_v4_csum; 956 u8 tcp_ip_v6_csum; 957 u8 udp_ip_v6_csum; 958 u8 lso_v1; 959 u8 ip_sec_v1; 960 u8 lso_v2_ipv4; 961 u8 lso_v2_ipv6; 962 u8 tcp_connection_ip_v4; 963 u8 tcp_connection_ip_v6; 964 u32 flags; 965 u8 ip_sec_v2; 966 u8 ip_sec_v2_ip_v4; 967 struct { 968 u8 rsc_ip_v4; 969 u8 rsc_ip_v6; 970 }; 971 struct { 972 u8 encapsulated_packet_task_offload; 973 u8 encapsulation_types; 974 }; 975 }; 976 977 struct ndis_tcp_ip_checksum_info { 978 union { 979 struct { 980 u32 is_ipv4:1; 981 u32 is_ipv6:1; 982 u32 tcp_checksum:1; 983 u32 udp_checksum:1; 984 u32 ip_header_checksum:1; 985 u32 reserved:11; 986 u32 tcp_header_offset:10; 987 } transmit; 988 struct { 989 u32 tcp_checksum_failed:1; 990 u32 udp_checksum_failed:1; 991 u32 ip_checksum_failed:1; 992 u32 tcp_checksum_succeeded:1; 993 u32 udp_checksum_succeeded:1; 994 u32 ip_checksum_succeeded:1; 995 u32 loopback:1; 996 u32 tcp_checksum_value_invalid:1; 997 u32 ip_checksum_value_invalid:1; 998 } receive; 999 u32 value; 1000 }; 1001 }; 1002 1003 struct ndis_tcp_lso_info { 1004 union { 1005 struct { 1006 u32 unused:30; 1007 u32 type:1; 1008 u32 reserved2:1; 1009 } transmit; 1010 struct { 1011 u32 mss:20; 1012 u32 tcp_header_offset:10; 1013 u32 type:1; 1014 u32 reserved2:1; 1015 } lso_v1_transmit; 1016 struct { 1017 u32 tcp_payload:30; 1018 u32 type:1; 1019 u32 reserved2:1; 1020 } lso_v1_transmit_complete; 1021 struct { 1022 u32 mss:20; 1023 u32 tcp_header_offset:10; 1024 u32 type:1; 1025 u32 ip_version:1; 1026 } lso_v2_transmit; 1027 struct { 1028 u32 reserved:30; 1029 u32 type:1; 1030 u32 reserved2:1; 1031 } lso_v2_transmit_complete; 1032 u32 value; 1033 }; 1034 }; 1035 1036 #define NDIS_VLAN_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \ 1037 sizeof(struct ndis_pkt_8021q_info)) 1038 1039 #define NDIS_CSUM_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \ 1040 sizeof(struct ndis_tcp_ip_checksum_info)) 1041 1042 #define NDIS_LSO_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \ 1043 sizeof(struct ndis_tcp_lso_info)) 1044 1045 #define NDIS_HASH_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \ 1046 sizeof(u32)) 1047 1048 /* Total size of all PPI data */ 1049 #define NDIS_ALL_PPI_SIZE (NDIS_VLAN_PPI_SIZE + NDIS_CSUM_PPI_SIZE + \ 1050 NDIS_LSO_PPI_SIZE + NDIS_HASH_PPI_SIZE) 1051 1052 /* Format of Information buffer passed in a SetRequest for the OID */ 1053 /* OID_GEN_RNDIS_CONFIG_PARAMETER. */ 1054 struct rndis_config_parameter_info { 1055 u32 parameter_name_offset; 1056 u32 parameter_name_length; 1057 u32 parameter_type; 1058 u32 parameter_value_offset; 1059 u32 parameter_value_length; 1060 }; 1061 1062 /* Values for ParameterType in struct rndis_config_parameter_info */ 1063 #define RNDIS_CONFIG_PARAM_TYPE_INTEGER 0 1064 #define RNDIS_CONFIG_PARAM_TYPE_STRING 2 1065 1066 /* CONDIS Miniport messages for connection oriented devices */ 1067 /* that do not implement a call manager. */ 1068 1069 /* CoNdisMiniportCreateVc message */ 1070 struct rcondis_mp_create_vc { 1071 u32 req_id; 1072 u32 ndis_vc_handle; 1073 }; 1074 1075 /* Response to CoNdisMiniportCreateVc */ 1076 struct rcondis_mp_create_vc_complete { 1077 u32 req_id; 1078 u32 dev_vc_handle; 1079 u32 status; 1080 }; 1081 1082 /* CoNdisMiniportDeleteVc message */ 1083 struct rcondis_mp_delete_vc { 1084 u32 req_id; 1085 u32 dev_vc_handle; 1086 }; 1087 1088 /* Response to CoNdisMiniportDeleteVc */ 1089 struct rcondis_mp_delete_vc_complete { 1090 u32 req_id; 1091 u32 status; 1092 }; 1093 1094 /* CoNdisMiniportQueryRequest message */ 1095 struct rcondis_mp_query_request { 1096 u32 req_id; 1097 u32 request_type; 1098 u32 oid; 1099 u32 dev_vc_handle; 1100 u32 info_buflen; 1101 u32 info_buf_offset; 1102 }; 1103 1104 /* CoNdisMiniportSetRequest message */ 1105 struct rcondis_mp_set_request { 1106 u32 req_id; 1107 u32 request_type; 1108 u32 oid; 1109 u32 dev_vc_handle; 1110 u32 info_buflen; 1111 u32 info_buf_offset; 1112 }; 1113 1114 /* CoNdisIndicateStatus message */ 1115 struct rcondis_indicate_status { 1116 u32 ndis_vc_handle; 1117 u32 status; 1118 u32 status_buflen; 1119 u32 status_buf_offset; 1120 }; 1121 1122 /* CONDIS Call/VC parameters */ 1123 struct rcondis_specific_parameters { 1124 u32 parameter_type; 1125 u32 parameter_length; 1126 u32 parameter_lffset; 1127 }; 1128 1129 struct rcondis_media_parameters { 1130 u32 flags; 1131 u32 reserved1; 1132 u32 reserved2; 1133 struct rcondis_specific_parameters media_specific; 1134 }; 1135 1136 struct rndis_flowspec { 1137 u32 token_rate; 1138 u32 token_bucket_size; 1139 u32 peak_bandwidth; 1140 u32 latency; 1141 u32 delay_variation; 1142 u32 service_type; 1143 u32 max_sdu_size; 1144 u32 minimum_policed_size; 1145 }; 1146 1147 struct rcondis_call_manager_parameters { 1148 struct rndis_flowspec transmit; 1149 struct rndis_flowspec receive; 1150 struct rcondis_specific_parameters call_mgr_specific; 1151 }; 1152 1153 /* CoNdisMiniportActivateVc message */ 1154 struct rcondis_mp_activate_vc_request { 1155 u32 req_id; 1156 u32 flags; 1157 u32 dev_vc_handle; 1158 u32 media_params_offset; 1159 u32 media_params_length; 1160 u32 call_mgr_params_offset; 1161 u32 call_mgr_params_length; 1162 }; 1163 1164 /* Response to CoNdisMiniportActivateVc */ 1165 struct rcondis_mp_activate_vc_complete { 1166 u32 req_id; 1167 u32 status; 1168 }; 1169 1170 /* CoNdisMiniportDeactivateVc message */ 1171 struct rcondis_mp_deactivate_vc_request { 1172 u32 req_id; 1173 u32 flags; 1174 u32 dev_vc_handle; 1175 }; 1176 1177 /* Response to CoNdisMiniportDeactivateVc */ 1178 struct rcondis_mp_deactivate_vc_complete { 1179 u32 req_id; 1180 u32 status; 1181 }; 1182 1183 1184 /* union with all of the RNDIS messages */ 1185 union rndis_message_container { 1186 struct rndis_packet pkt; 1187 struct rndis_initialize_request init_req; 1188 struct rndis_halt_request halt_req; 1189 struct rndis_query_request query_req; 1190 struct rndis_set_request set_req; 1191 struct rndis_reset_request reset_req; 1192 struct rndis_keepalive_request keep_alive_req; 1193 struct rndis_indicate_status indicate_status; 1194 struct rndis_initialize_complete init_complete; 1195 struct rndis_query_complete query_complete; 1196 struct rndis_set_complete set_complete; 1197 struct rndis_reset_complete reset_complete; 1198 struct rndis_keepalive_complete keep_alive_complete; 1199 struct rcondis_mp_create_vc co_miniport_create_vc; 1200 struct rcondis_mp_delete_vc co_miniport_delete_vc; 1201 struct rcondis_indicate_status co_indicate_status; 1202 struct rcondis_mp_activate_vc_request co_miniport_activate_vc; 1203 struct rcondis_mp_deactivate_vc_request co_miniport_deactivate_vc; 1204 struct rcondis_mp_create_vc_complete co_miniport_create_vc_complete; 1205 struct rcondis_mp_delete_vc_complete co_miniport_delete_vc_complete; 1206 struct rcondis_mp_activate_vc_complete co_miniport_activate_vc_complete; 1207 struct rcondis_mp_deactivate_vc_complete 1208 co_miniport_deactivate_vc_complete; 1209 }; 1210 1211 /* Remote NDIS message format */ 1212 struct rndis_message { 1213 u32 ndis_msg_type; 1214 1215 /* Total length of this message, from the beginning */ 1216 /* of the sruct rndis_message, in bytes. */ 1217 u32 msg_len; 1218 1219 /* Actual message */ 1220 union rndis_message_container msg; 1221 }; 1222 1223 1224 /* Handy macros */ 1225 1226 /* get the size of an RNDIS message. Pass in the message type, */ 1227 /* struct rndis_set_request, struct rndis_packet for example */ 1228 #define RNDIS_MESSAGE_SIZE(msg) \ 1229 (sizeof(msg) + (sizeof(struct rndis_message) - \ 1230 sizeof(union rndis_message_container))) 1231 1232 /* get pointer to info buffer with message pointer */ 1233 #define MESSAGE_TO_INFO_BUFFER(msg) \ 1234 (((unsigned char *)(msg)) + msg->info_buf_offset) 1235 1236 /* get pointer to status buffer with message pointer */ 1237 #define MESSAGE_TO_STATUS_BUFFER(msg) \ 1238 (((unsigned char *)(msg)) + msg->status_buf_offset) 1239 1240 /* get pointer to OOBD buffer with message pointer */ 1241 #define MESSAGE_TO_OOBD_BUFFER(msg) \ 1242 (((unsigned char *)(msg)) + msg->oob_data_offset) 1243 1244 /* get pointer to data buffer with message pointer */ 1245 #define MESSAGE_TO_DATA_BUFFER(msg) \ 1246 (((unsigned char *)(msg)) + msg->per_pkt_info_offset) 1247 1248 /* get pointer to contained message from NDIS_MESSAGE pointer */ 1249 #define RNDIS_MESSAGE_PTR_TO_MESSAGE_PTR(rndis_msg) \ 1250 ((void *) &rndis_msg->msg) 1251 1252 /* get pointer to contained message from NDIS_MESSAGE pointer */ 1253 #define RNDIS_MESSAGE_RAW_PTR_TO_MESSAGE_PTR(rndis_msg) \ 1254 ((void *) rndis_msg) 1255 1256 1257 #define __struct_bcount(x) 1258 1259 1260 1261 #define RNDIS_HEADER_SIZE (sizeof(struct rndis_message) - \ 1262 sizeof(union rndis_message_container)) 1263 1264 #define RNDIS_AND_PPI_SIZE (sizeof(struct rndis_message) + NDIS_ALL_PPI_SIZE) 1265 1266 #define NDIS_PACKET_TYPE_DIRECTED 0x00000001 1267 #define NDIS_PACKET_TYPE_MULTICAST 0x00000002 1268 #define NDIS_PACKET_TYPE_ALL_MULTICAST 0x00000004 1269 #define NDIS_PACKET_TYPE_BROADCAST 0x00000008 1270 #define NDIS_PACKET_TYPE_SOURCE_ROUTING 0x00000010 1271 #define NDIS_PACKET_TYPE_PROMISCUOUS 0x00000020 1272 #define NDIS_PACKET_TYPE_SMT 0x00000040 1273 #define NDIS_PACKET_TYPE_ALL_LOCAL 0x00000080 1274 #define NDIS_PACKET_TYPE_GROUP 0x00000100 1275 #define NDIS_PACKET_TYPE_ALL_FUNCTIONAL 0x00000200 1276 #define NDIS_PACKET_TYPE_FUNCTIONAL 0x00000400 1277 #define NDIS_PACKET_TYPE_MAC_FRAME 0x00000800 1278 1279 #define INFO_IPV4 2 1280 #define INFO_IPV6 4 1281 #define INFO_TCP 2 1282 #define INFO_UDP 4 1283 1284 #define TRANSPORT_INFO_NOT_IP 0 1285 #define TRANSPORT_INFO_IPV4_TCP ((INFO_IPV4 << 16) | INFO_TCP) 1286 #define TRANSPORT_INFO_IPV4_UDP ((INFO_IPV4 << 16) | INFO_UDP) 1287 #define TRANSPORT_INFO_IPV6_TCP ((INFO_IPV6 << 16) | INFO_TCP) 1288 #define TRANSPORT_INFO_IPV6_UDP ((INFO_IPV6 << 16) | INFO_UDP) 1289 1290 #endif /* _HYPERV_NET_H */ 1291