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