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 u64 teaming:1; 494 }; 495 }; 496 } __packed; 497 498 struct nvsp_2_send_ndis_config { 499 u32 mtu; 500 u32 reserved; 501 struct nvsp_2_vsc_capability capability; 502 } __packed; 503 504 /* Allocate receive buffer */ 505 struct nvsp_2_alloc_rxbuf { 506 /* Allocation ID to match the allocation request and response */ 507 u32 alloc_id; 508 509 /* Length of the VM shared memory receive buffer that needs to 510 * be allocated 511 */ 512 u32 len; 513 } __packed; 514 515 /* Allocate receive buffer complete */ 516 struct nvsp_2_alloc_rxbuf_comp { 517 /* The NDIS_STATUS code for buffer allocation */ 518 u32 status; 519 520 u32 alloc_id; 521 522 /* GPADL handle for the allocated receive buffer */ 523 u32 gpadl_handle; 524 525 /* Receive buffer ID */ 526 u64 recv_buf_id; 527 } __packed; 528 529 struct nvsp_2_free_rxbuf { 530 u64 recv_buf_id; 531 } __packed; 532 533 union nvsp_2_message_uber { 534 struct nvsp_2_send_ndis_config send_ndis_config; 535 struct nvsp_2_alloc_rxbuf alloc_rxbuf; 536 struct nvsp_2_alloc_rxbuf_comp alloc_rxbuf_comp; 537 struct nvsp_2_free_rxbuf free_rxbuf; 538 } __packed; 539 540 struct nvsp_4_send_vf_association { 541 /* 1: allocated, serial number is valid. 0: not allocated */ 542 u32 allocated; 543 544 /* Serial number of the VF to team with */ 545 u32 serial; 546 } __packed; 547 548 enum nvsp_vm_datapath { 549 NVSP_DATAPATH_SYNTHETIC = 0, 550 NVSP_DATAPATH_VF, 551 NVSP_DATAPATH_MAX 552 }; 553 554 struct nvsp_4_sw_datapath { 555 u32 active_datapath; /* active data path in VM */ 556 } __packed; 557 558 union nvsp_4_message_uber { 559 struct nvsp_4_send_vf_association vf_assoc; 560 struct nvsp_4_sw_datapath active_dp; 561 } __packed; 562 563 enum nvsp_subchannel_operation { 564 NVSP_SUBCHANNEL_NONE = 0, 565 NVSP_SUBCHANNEL_ALLOCATE, 566 NVSP_SUBCHANNEL_MAX 567 }; 568 569 struct nvsp_5_subchannel_request { 570 u32 op; 571 u32 num_subchannels; 572 } __packed; 573 574 struct nvsp_5_subchannel_complete { 575 u32 status; 576 u32 num_subchannels; /* Actual number of subchannels allocated */ 577 } __packed; 578 579 struct nvsp_5_send_indirect_table { 580 /* The number of entries in the send indirection table */ 581 u32 count; 582 583 /* The offset of the send indireciton table from top of this struct. 584 * The send indirection table tells which channel to put the send 585 * traffic on. Each entry is a channel number. 586 */ 587 u32 offset; 588 } __packed; 589 590 union nvsp_5_message_uber { 591 struct nvsp_5_subchannel_request subchn_req; 592 struct nvsp_5_subchannel_complete subchn_comp; 593 struct nvsp_5_send_indirect_table send_table; 594 } __packed; 595 596 union nvsp_all_messages { 597 union nvsp_message_init_uber init_msg; 598 union nvsp_1_message_uber v1_msg; 599 union nvsp_2_message_uber v2_msg; 600 union nvsp_4_message_uber v4_msg; 601 union nvsp_5_message_uber v5_msg; 602 } __packed; 603 604 /* ALL Messages */ 605 struct nvsp_message { 606 struct nvsp_message_header hdr; 607 union nvsp_all_messages msg; 608 } __packed; 609 610 611 #define NETVSC_MTU 65536 612 #define NETVSC_MTU_MIN 68 613 614 #define NETVSC_RECEIVE_BUFFER_SIZE (1024*1024*16) /* 16MB */ 615 #define NETVSC_RECEIVE_BUFFER_SIZE_LEGACY (1024*1024*15) /* 15MB */ 616 #define NETVSC_SEND_BUFFER_SIZE (1024 * 1024 * 15) /* 15MB */ 617 #define NETVSC_INVALID_INDEX -1 618 619 620 #define NETVSC_RECEIVE_BUFFER_ID 0xcafe 621 #define NETVSC_SEND_BUFFER_ID 0 622 623 #define NETVSC_PACKET_SIZE 4096 624 625 #define VRSS_SEND_TAB_SIZE 16 626 #define VRSS_CHANNEL_MAX 64 627 628 #define RNDIS_MAX_PKT_DEFAULT 8 629 #define RNDIS_PKT_ALIGN_DEFAULT 8 630 631 struct multi_send_data { 632 struct sk_buff *skb; /* skb containing the pkt */ 633 struct hv_netvsc_packet *pkt; /* netvsc pkt pending */ 634 u32 count; /* counter of batched packets */ 635 }; 636 637 struct netvsc_stats { 638 u64 packets; 639 u64 bytes; 640 struct u64_stats_sync syncp; 641 }; 642 643 struct netvsc_reconfig { 644 struct list_head list; 645 u32 event; 646 }; 647 648 struct garp_wrk { 649 struct work_struct dwrk; 650 struct net_device *netdev; 651 struct netvsc_device *netvsc_dev; 652 }; 653 654 /* The context of the netvsc device */ 655 struct net_device_context { 656 /* point back to our device context */ 657 struct hv_device *device_ctx; 658 /* netvsc_device */ 659 struct netvsc_device *nvdev; 660 /* reconfigure work */ 661 struct delayed_work dwork; 662 /* last reconfig time */ 663 unsigned long last_reconfig; 664 /* reconfig events */ 665 struct list_head reconfig_events; 666 /* list protection */ 667 spinlock_t lock; 668 669 struct work_struct work; 670 u32 msg_enable; /* debug level */ 671 struct garp_wrk gwrk; 672 673 struct netvsc_stats __percpu *tx_stats; 674 struct netvsc_stats __percpu *rx_stats; 675 676 /* Ethtool settings */ 677 u8 duplex; 678 u32 speed; 679 680 /* the device is going away */ 681 bool start_remove; 682 }; 683 684 /* Per netvsc device */ 685 struct netvsc_device { 686 u32 nvsp_version; 687 688 atomic_t num_outstanding_sends; 689 wait_queue_head_t wait_drain; 690 bool destroy; 691 692 /* Receive buffer allocated by us but manages by NetVSP */ 693 void *recv_buf; 694 u32 recv_buf_size; 695 u32 recv_buf_gpadl_handle; 696 u32 recv_section_cnt; 697 struct nvsp_1_receive_buffer_section *recv_section; 698 699 /* Send buffer allocated by us */ 700 void *send_buf; 701 u32 send_buf_size; 702 u32 send_buf_gpadl_handle; 703 u32 send_section_cnt; 704 u32 send_section_size; 705 unsigned long *send_section_map; 706 int map_words; 707 708 /* Used for NetVSP initialization protocol */ 709 struct completion channel_init_wait; 710 struct nvsp_message channel_init_pkt; 711 712 struct nvsp_message revoke_packet; 713 /* unsigned char HwMacAddr[HW_MACADDR_LEN]; */ 714 715 struct vmbus_channel *chn_table[VRSS_CHANNEL_MAX]; 716 u32 send_table[VRSS_SEND_TAB_SIZE]; 717 u32 max_chn; 718 u32 num_chn; 719 spinlock_t sc_lock; /* Protects num_sc_offered variable */ 720 u32 num_sc_offered; 721 atomic_t queue_sends[VRSS_CHANNEL_MAX]; 722 723 /* Holds rndis device info */ 724 void *extension; 725 726 int ring_size; 727 728 /* The primary channel callback buffer */ 729 unsigned char *cb_buffer; 730 /* The sub channel callback buffer */ 731 unsigned char *sub_cb_buf; 732 733 struct multi_send_data msd[VRSS_CHANNEL_MAX]; 734 u32 max_pkt; /* max number of pkt in one send, e.g. 8 */ 735 u32 pkt_align; /* alignment bytes, e.g. 8 */ 736 737 /* 1: allocated, serial number is valid. 0: not allocated */ 738 u32 vf_alloc; 739 /* Serial number of the VF to team with */ 740 u32 vf_serial; 741 atomic_t open_cnt; 742 /* State to manage the associated VF interface. */ 743 bool vf_inject; 744 struct net_device *vf_netdev; 745 atomic_t vf_use_cnt; 746 }; 747 748 static inline struct netvsc_device * 749 net_device_to_netvsc_device(struct net_device *ndev) 750 { 751 return ((struct net_device_context *)netdev_priv(ndev))->nvdev; 752 } 753 754 static inline struct netvsc_device * 755 hv_device_to_netvsc_device(struct hv_device *device) 756 { 757 return net_device_to_netvsc_device(hv_get_drvdata(device)); 758 } 759 760 /* NdisInitialize message */ 761 struct rndis_initialize_request { 762 u32 req_id; 763 u32 major_ver; 764 u32 minor_ver; 765 u32 max_xfer_size; 766 }; 767 768 /* Response to NdisInitialize */ 769 struct rndis_initialize_complete { 770 u32 req_id; 771 u32 status; 772 u32 major_ver; 773 u32 minor_ver; 774 u32 dev_flags; 775 u32 medium; 776 u32 max_pkt_per_msg; 777 u32 max_xfer_size; 778 u32 pkt_alignment_factor; 779 u32 af_list_offset; 780 u32 af_list_size; 781 }; 782 783 /* Call manager devices only: Information about an address family */ 784 /* supported by the device is appended to the response to NdisInitialize. */ 785 struct rndis_co_address_family { 786 u32 address_family; 787 u32 major_ver; 788 u32 minor_ver; 789 }; 790 791 /* NdisHalt message */ 792 struct rndis_halt_request { 793 u32 req_id; 794 }; 795 796 /* NdisQueryRequest message */ 797 struct rndis_query_request { 798 u32 req_id; 799 u32 oid; 800 u32 info_buflen; 801 u32 info_buf_offset; 802 u32 dev_vc_handle; 803 }; 804 805 /* Response to NdisQueryRequest */ 806 struct rndis_query_complete { 807 u32 req_id; 808 u32 status; 809 u32 info_buflen; 810 u32 info_buf_offset; 811 }; 812 813 /* NdisSetRequest message */ 814 struct rndis_set_request { 815 u32 req_id; 816 u32 oid; 817 u32 info_buflen; 818 u32 info_buf_offset; 819 u32 dev_vc_handle; 820 }; 821 822 /* Response to NdisSetRequest */ 823 struct rndis_set_complete { 824 u32 req_id; 825 u32 status; 826 }; 827 828 /* NdisReset message */ 829 struct rndis_reset_request { 830 u32 reserved; 831 }; 832 833 /* Response to NdisReset */ 834 struct rndis_reset_complete { 835 u32 status; 836 u32 addressing_reset; 837 }; 838 839 /* NdisMIndicateStatus message */ 840 struct rndis_indicate_status { 841 u32 status; 842 u32 status_buflen; 843 u32 status_buf_offset; 844 }; 845 846 /* Diagnostic information passed as the status buffer in */ 847 /* struct rndis_indicate_status messages signifying error conditions. */ 848 struct rndis_diagnostic_info { 849 u32 diag_status; 850 u32 error_offset; 851 }; 852 853 /* NdisKeepAlive message */ 854 struct rndis_keepalive_request { 855 u32 req_id; 856 }; 857 858 /* Response to NdisKeepAlive */ 859 struct rndis_keepalive_complete { 860 u32 req_id; 861 u32 status; 862 }; 863 864 /* 865 * Data message. All Offset fields contain byte offsets from the beginning of 866 * struct rndis_packet. All Length fields are in bytes. VcHandle is set 867 * to 0 for connectionless data, otherwise it contains the VC handle. 868 */ 869 struct rndis_packet { 870 u32 data_offset; 871 u32 data_len; 872 u32 oob_data_offset; 873 u32 oob_data_len; 874 u32 num_oob_data_elements; 875 u32 per_pkt_info_offset; 876 u32 per_pkt_info_len; 877 u32 vc_handle; 878 u32 reserved; 879 }; 880 881 /* Optional Out of Band data associated with a Data message. */ 882 struct rndis_oobd { 883 u32 size; 884 u32 type; 885 u32 class_info_offset; 886 }; 887 888 /* Packet extension field contents associated with a Data message. */ 889 struct rndis_per_packet_info { 890 u32 size; 891 u32 type; 892 u32 ppi_offset; 893 }; 894 895 enum ndis_per_pkt_info_type { 896 TCPIP_CHKSUM_PKTINFO, 897 IPSEC_PKTINFO, 898 TCP_LARGESEND_PKTINFO, 899 CLASSIFICATION_HANDLE_PKTINFO, 900 NDIS_RESERVED, 901 SG_LIST_PKTINFO, 902 IEEE_8021Q_INFO, 903 ORIGINAL_PKTINFO, 904 PACKET_CANCEL_ID, 905 NBL_HASH_VALUE = PACKET_CANCEL_ID, 906 ORIGINAL_NET_BUFLIST, 907 CACHED_NET_BUFLIST, 908 SHORT_PKT_PADINFO, 909 MAX_PER_PKT_INFO 910 }; 911 912 struct ndis_pkt_8021q_info { 913 union { 914 struct { 915 u32 pri:3; /* User Priority */ 916 u32 cfi:1; /* Canonical Format ID */ 917 u32 vlanid:12; /* VLAN ID */ 918 u32 reserved:16; 919 }; 920 u32 value; 921 }; 922 }; 923 924 struct ndis_oject_header { 925 u8 type; 926 u8 revision; 927 u16 size; 928 }; 929 930 #define NDIS_OBJECT_TYPE_DEFAULT 0x80 931 #define NDIS_OFFLOAD_PARAMETERS_REVISION_3 3 932 #define NDIS_OFFLOAD_PARAMETERS_NO_CHANGE 0 933 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_DISABLED 1 934 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_ENABLED 2 935 #define NDIS_OFFLOAD_PARAMETERS_LSOV1_ENABLED 2 936 #define NDIS_OFFLOAD_PARAMETERS_RSC_DISABLED 1 937 #define NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED 2 938 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_DISABLED 1 939 #define NDIS_OFFLOAD_PARAMETERS_TX_ENABLED_RX_DISABLED 2 940 #define NDIS_OFFLOAD_PARAMETERS_RX_ENABLED_TX_DISABLED 3 941 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED 4 942 943 #define NDIS_TCP_LARGE_SEND_OFFLOAD_V2_TYPE 1 944 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV4 0 945 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV6 1 946 947 #define VERSION_4_OFFLOAD_SIZE 22 948 /* 949 * New offload OIDs for NDIS 6 950 */ 951 #define OID_TCP_OFFLOAD_CURRENT_CONFIG 0xFC01020B /* query only */ 952 #define OID_TCP_OFFLOAD_PARAMETERS 0xFC01020C /* set only */ 953 #define OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020D/* query only */ 954 #define OID_TCP_CONNECTION_OFFLOAD_CURRENT_CONFIG 0xFC01020E /* query only */ 955 #define OID_TCP_CONNECTION_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020F /* query */ 956 #define OID_OFFLOAD_ENCAPSULATION 0x0101010A /* set/query */ 957 958 struct ndis_offload_params { 959 struct ndis_oject_header header; 960 u8 ip_v4_csum; 961 u8 tcp_ip_v4_csum; 962 u8 udp_ip_v4_csum; 963 u8 tcp_ip_v6_csum; 964 u8 udp_ip_v6_csum; 965 u8 lso_v1; 966 u8 ip_sec_v1; 967 u8 lso_v2_ipv4; 968 u8 lso_v2_ipv6; 969 u8 tcp_connection_ip_v4; 970 u8 tcp_connection_ip_v6; 971 u32 flags; 972 u8 ip_sec_v2; 973 u8 ip_sec_v2_ip_v4; 974 struct { 975 u8 rsc_ip_v4; 976 u8 rsc_ip_v6; 977 }; 978 struct { 979 u8 encapsulated_packet_task_offload; 980 u8 encapsulation_types; 981 }; 982 }; 983 984 struct ndis_tcp_ip_checksum_info { 985 union { 986 struct { 987 u32 is_ipv4:1; 988 u32 is_ipv6:1; 989 u32 tcp_checksum:1; 990 u32 udp_checksum:1; 991 u32 ip_header_checksum:1; 992 u32 reserved:11; 993 u32 tcp_header_offset:10; 994 } transmit; 995 struct { 996 u32 tcp_checksum_failed:1; 997 u32 udp_checksum_failed:1; 998 u32 ip_checksum_failed:1; 999 u32 tcp_checksum_succeeded:1; 1000 u32 udp_checksum_succeeded:1; 1001 u32 ip_checksum_succeeded:1; 1002 u32 loopback:1; 1003 u32 tcp_checksum_value_invalid:1; 1004 u32 ip_checksum_value_invalid:1; 1005 } receive; 1006 u32 value; 1007 }; 1008 }; 1009 1010 struct ndis_tcp_lso_info { 1011 union { 1012 struct { 1013 u32 unused:30; 1014 u32 type:1; 1015 u32 reserved2:1; 1016 } transmit; 1017 struct { 1018 u32 mss:20; 1019 u32 tcp_header_offset:10; 1020 u32 type:1; 1021 u32 reserved2:1; 1022 } lso_v1_transmit; 1023 struct { 1024 u32 tcp_payload:30; 1025 u32 type:1; 1026 u32 reserved2:1; 1027 } lso_v1_transmit_complete; 1028 struct { 1029 u32 mss:20; 1030 u32 tcp_header_offset:10; 1031 u32 type:1; 1032 u32 ip_version:1; 1033 } lso_v2_transmit; 1034 struct { 1035 u32 reserved:30; 1036 u32 type:1; 1037 u32 reserved2:1; 1038 } lso_v2_transmit_complete; 1039 u32 value; 1040 }; 1041 }; 1042 1043 #define NDIS_VLAN_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \ 1044 sizeof(struct ndis_pkt_8021q_info)) 1045 1046 #define NDIS_CSUM_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \ 1047 sizeof(struct ndis_tcp_ip_checksum_info)) 1048 1049 #define NDIS_LSO_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \ 1050 sizeof(struct ndis_tcp_lso_info)) 1051 1052 #define NDIS_HASH_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \ 1053 sizeof(u32)) 1054 1055 /* Total size of all PPI data */ 1056 #define NDIS_ALL_PPI_SIZE (NDIS_VLAN_PPI_SIZE + NDIS_CSUM_PPI_SIZE + \ 1057 NDIS_LSO_PPI_SIZE + NDIS_HASH_PPI_SIZE) 1058 1059 /* Format of Information buffer passed in a SetRequest for the OID */ 1060 /* OID_GEN_RNDIS_CONFIG_PARAMETER. */ 1061 struct rndis_config_parameter_info { 1062 u32 parameter_name_offset; 1063 u32 parameter_name_length; 1064 u32 parameter_type; 1065 u32 parameter_value_offset; 1066 u32 parameter_value_length; 1067 }; 1068 1069 /* Values for ParameterType in struct rndis_config_parameter_info */ 1070 #define RNDIS_CONFIG_PARAM_TYPE_INTEGER 0 1071 #define RNDIS_CONFIG_PARAM_TYPE_STRING 2 1072 1073 /* CONDIS Miniport messages for connection oriented devices */ 1074 /* that do not implement a call manager. */ 1075 1076 /* CoNdisMiniportCreateVc message */ 1077 struct rcondis_mp_create_vc { 1078 u32 req_id; 1079 u32 ndis_vc_handle; 1080 }; 1081 1082 /* Response to CoNdisMiniportCreateVc */ 1083 struct rcondis_mp_create_vc_complete { 1084 u32 req_id; 1085 u32 dev_vc_handle; 1086 u32 status; 1087 }; 1088 1089 /* CoNdisMiniportDeleteVc message */ 1090 struct rcondis_mp_delete_vc { 1091 u32 req_id; 1092 u32 dev_vc_handle; 1093 }; 1094 1095 /* Response to CoNdisMiniportDeleteVc */ 1096 struct rcondis_mp_delete_vc_complete { 1097 u32 req_id; 1098 u32 status; 1099 }; 1100 1101 /* CoNdisMiniportQueryRequest message */ 1102 struct rcondis_mp_query_request { 1103 u32 req_id; 1104 u32 request_type; 1105 u32 oid; 1106 u32 dev_vc_handle; 1107 u32 info_buflen; 1108 u32 info_buf_offset; 1109 }; 1110 1111 /* CoNdisMiniportSetRequest message */ 1112 struct rcondis_mp_set_request { 1113 u32 req_id; 1114 u32 request_type; 1115 u32 oid; 1116 u32 dev_vc_handle; 1117 u32 info_buflen; 1118 u32 info_buf_offset; 1119 }; 1120 1121 /* CoNdisIndicateStatus message */ 1122 struct rcondis_indicate_status { 1123 u32 ndis_vc_handle; 1124 u32 status; 1125 u32 status_buflen; 1126 u32 status_buf_offset; 1127 }; 1128 1129 /* CONDIS Call/VC parameters */ 1130 struct rcondis_specific_parameters { 1131 u32 parameter_type; 1132 u32 parameter_length; 1133 u32 parameter_lffset; 1134 }; 1135 1136 struct rcondis_media_parameters { 1137 u32 flags; 1138 u32 reserved1; 1139 u32 reserved2; 1140 struct rcondis_specific_parameters media_specific; 1141 }; 1142 1143 struct rndis_flowspec { 1144 u32 token_rate; 1145 u32 token_bucket_size; 1146 u32 peak_bandwidth; 1147 u32 latency; 1148 u32 delay_variation; 1149 u32 service_type; 1150 u32 max_sdu_size; 1151 u32 minimum_policed_size; 1152 }; 1153 1154 struct rcondis_call_manager_parameters { 1155 struct rndis_flowspec transmit; 1156 struct rndis_flowspec receive; 1157 struct rcondis_specific_parameters call_mgr_specific; 1158 }; 1159 1160 /* CoNdisMiniportActivateVc message */ 1161 struct rcondis_mp_activate_vc_request { 1162 u32 req_id; 1163 u32 flags; 1164 u32 dev_vc_handle; 1165 u32 media_params_offset; 1166 u32 media_params_length; 1167 u32 call_mgr_params_offset; 1168 u32 call_mgr_params_length; 1169 }; 1170 1171 /* Response to CoNdisMiniportActivateVc */ 1172 struct rcondis_mp_activate_vc_complete { 1173 u32 req_id; 1174 u32 status; 1175 }; 1176 1177 /* CoNdisMiniportDeactivateVc message */ 1178 struct rcondis_mp_deactivate_vc_request { 1179 u32 req_id; 1180 u32 flags; 1181 u32 dev_vc_handle; 1182 }; 1183 1184 /* Response to CoNdisMiniportDeactivateVc */ 1185 struct rcondis_mp_deactivate_vc_complete { 1186 u32 req_id; 1187 u32 status; 1188 }; 1189 1190 1191 /* union with all of the RNDIS messages */ 1192 union rndis_message_container { 1193 struct rndis_packet pkt; 1194 struct rndis_initialize_request init_req; 1195 struct rndis_halt_request halt_req; 1196 struct rndis_query_request query_req; 1197 struct rndis_set_request set_req; 1198 struct rndis_reset_request reset_req; 1199 struct rndis_keepalive_request keep_alive_req; 1200 struct rndis_indicate_status indicate_status; 1201 struct rndis_initialize_complete init_complete; 1202 struct rndis_query_complete query_complete; 1203 struct rndis_set_complete set_complete; 1204 struct rndis_reset_complete reset_complete; 1205 struct rndis_keepalive_complete keep_alive_complete; 1206 struct rcondis_mp_create_vc co_miniport_create_vc; 1207 struct rcondis_mp_delete_vc co_miniport_delete_vc; 1208 struct rcondis_indicate_status co_indicate_status; 1209 struct rcondis_mp_activate_vc_request co_miniport_activate_vc; 1210 struct rcondis_mp_deactivate_vc_request co_miniport_deactivate_vc; 1211 struct rcondis_mp_create_vc_complete co_miniport_create_vc_complete; 1212 struct rcondis_mp_delete_vc_complete co_miniport_delete_vc_complete; 1213 struct rcondis_mp_activate_vc_complete co_miniport_activate_vc_complete; 1214 struct rcondis_mp_deactivate_vc_complete 1215 co_miniport_deactivate_vc_complete; 1216 }; 1217 1218 /* Remote NDIS message format */ 1219 struct rndis_message { 1220 u32 ndis_msg_type; 1221 1222 /* Total length of this message, from the beginning */ 1223 /* of the sruct rndis_message, in bytes. */ 1224 u32 msg_len; 1225 1226 /* Actual message */ 1227 union rndis_message_container msg; 1228 }; 1229 1230 1231 /* Handy macros */ 1232 1233 /* get the size of an RNDIS message. Pass in the message type, */ 1234 /* struct rndis_set_request, struct rndis_packet for example */ 1235 #define RNDIS_MESSAGE_SIZE(msg) \ 1236 (sizeof(msg) + (sizeof(struct rndis_message) - \ 1237 sizeof(union rndis_message_container))) 1238 1239 /* get pointer to info buffer with message pointer */ 1240 #define MESSAGE_TO_INFO_BUFFER(msg) \ 1241 (((unsigned char *)(msg)) + msg->info_buf_offset) 1242 1243 /* get pointer to status buffer with message pointer */ 1244 #define MESSAGE_TO_STATUS_BUFFER(msg) \ 1245 (((unsigned char *)(msg)) + msg->status_buf_offset) 1246 1247 /* get pointer to OOBD buffer with message pointer */ 1248 #define MESSAGE_TO_OOBD_BUFFER(msg) \ 1249 (((unsigned char *)(msg)) + msg->oob_data_offset) 1250 1251 /* get pointer to data buffer with message pointer */ 1252 #define MESSAGE_TO_DATA_BUFFER(msg) \ 1253 (((unsigned char *)(msg)) + msg->per_pkt_info_offset) 1254 1255 /* get pointer to contained message from NDIS_MESSAGE pointer */ 1256 #define RNDIS_MESSAGE_PTR_TO_MESSAGE_PTR(rndis_msg) \ 1257 ((void *) &rndis_msg->msg) 1258 1259 /* get pointer to contained message from NDIS_MESSAGE pointer */ 1260 #define RNDIS_MESSAGE_RAW_PTR_TO_MESSAGE_PTR(rndis_msg) \ 1261 ((void *) rndis_msg) 1262 1263 1264 #define __struct_bcount(x) 1265 1266 1267 1268 #define RNDIS_HEADER_SIZE (sizeof(struct rndis_message) - \ 1269 sizeof(union rndis_message_container)) 1270 1271 #define RNDIS_AND_PPI_SIZE (sizeof(struct rndis_message) + NDIS_ALL_PPI_SIZE) 1272 1273 #define NDIS_PACKET_TYPE_DIRECTED 0x00000001 1274 #define NDIS_PACKET_TYPE_MULTICAST 0x00000002 1275 #define NDIS_PACKET_TYPE_ALL_MULTICAST 0x00000004 1276 #define NDIS_PACKET_TYPE_BROADCAST 0x00000008 1277 #define NDIS_PACKET_TYPE_SOURCE_ROUTING 0x00000010 1278 #define NDIS_PACKET_TYPE_PROMISCUOUS 0x00000020 1279 #define NDIS_PACKET_TYPE_SMT 0x00000040 1280 #define NDIS_PACKET_TYPE_ALL_LOCAL 0x00000080 1281 #define NDIS_PACKET_TYPE_GROUP 0x00000100 1282 #define NDIS_PACKET_TYPE_ALL_FUNCTIONAL 0x00000200 1283 #define NDIS_PACKET_TYPE_FUNCTIONAL 0x00000400 1284 #define NDIS_PACKET_TYPE_MAC_FRAME 0x00000800 1285 1286 #define INFO_IPV4 2 1287 #define INFO_IPV6 4 1288 #define INFO_TCP 2 1289 #define INFO_UDP 4 1290 1291 #define TRANSPORT_INFO_NOT_IP 0 1292 #define TRANSPORT_INFO_IPV4_TCP ((INFO_IPV4 << 16) | INFO_TCP) 1293 #define TRANSPORT_INFO_IPV4_UDP ((INFO_IPV4 << 16) | INFO_UDP) 1294 #define TRANSPORT_INFO_IPV6_TCP ((INFO_IPV6 << 16) | INFO_TCP) 1295 #define TRANSPORT_INFO_IPV6_UDP ((INFO_IPV6 << 16) | INFO_UDP) 1296 1297 #endif /* _HYPERV_NET_H */ 1298