1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 *
4 * Copyright (c) 2011, Microsoft Corporation.
5 *
6 * Authors:
7 * Haiyang Zhang <haiyangz@microsoft.com>
8 * Hank Janssen <hjanssen@microsoft.com>
9 * K. Y. Srinivasan <kys@microsoft.com>
10 */
11
12 #ifndef _HYPERV_NET_H
13 #define _HYPERV_NET_H
14
15 #include <linux/list.h>
16 #include <linux/hyperv.h>
17 #include <linux/rndis.h>
18
19 /* RSS related */
20 #define OID_GEN_RECEIVE_SCALE_CAPABILITIES 0x00010203 /* query only */
21 #define OID_GEN_RECEIVE_SCALE_PARAMETERS 0x00010204 /* query and set */
22
23 #define NDIS_OBJECT_TYPE_RSS_CAPABILITIES 0x88
24 #define NDIS_OBJECT_TYPE_RSS_PARAMETERS 0x89
25 #define NDIS_OBJECT_TYPE_OFFLOAD 0xa7
26
27 #define NDIS_RECEIVE_SCALE_CAPABILITIES_REVISION_2 2
28 #define NDIS_RECEIVE_SCALE_PARAMETERS_REVISION_2 2
29
30 struct ndis_obj_header {
31 u8 type;
32 u8 rev;
33 u16 size;
34 } __packed;
35
36 /* ndis_recv_scale_cap/cap_flag */
37 #define NDIS_RSS_CAPS_MESSAGE_SIGNALED_INTERRUPTS 0x01000000
38 #define NDIS_RSS_CAPS_CLASSIFICATION_AT_ISR 0x02000000
39 #define NDIS_RSS_CAPS_CLASSIFICATION_AT_DPC 0x04000000
40 #define NDIS_RSS_CAPS_USING_MSI_X 0x08000000
41 #define NDIS_RSS_CAPS_RSS_AVAILABLE_ON_PORTS 0x10000000
42 #define NDIS_RSS_CAPS_SUPPORTS_MSI_X 0x20000000
43 #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV4 0x00000100
44 #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV6 0x00000200
45 #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV6_EX 0x00000400
46
47 struct ndis_recv_scale_cap { /* NDIS_RECEIVE_SCALE_CAPABILITIES */
48 struct ndis_obj_header hdr;
49 u32 cap_flag;
50 u32 num_int_msg;
51 u32 num_recv_que;
52 u16 num_indirect_tabent;
53 } __packed;
54
55
56 /* ndis_recv_scale_param flags */
57 #define NDIS_RSS_PARAM_FLAG_BASE_CPU_UNCHANGED 0x0001
58 #define NDIS_RSS_PARAM_FLAG_HASH_INFO_UNCHANGED 0x0002
59 #define NDIS_RSS_PARAM_FLAG_ITABLE_UNCHANGED 0x0004
60 #define NDIS_RSS_PARAM_FLAG_HASH_KEY_UNCHANGED 0x0008
61 #define NDIS_RSS_PARAM_FLAG_DISABLE_RSS 0x0010
62
63 /* Hash info bits */
64 #define NDIS_HASH_FUNC_TOEPLITZ 0x00000001
65 #define NDIS_HASH_IPV4 0x00000100
66 #define NDIS_HASH_TCP_IPV4 0x00000200
67 #define NDIS_HASH_IPV6 0x00000400
68 #define NDIS_HASH_IPV6_EX 0x00000800
69 #define NDIS_HASH_TCP_IPV6 0x00001000
70 #define NDIS_HASH_TCP_IPV6_EX 0x00002000
71
72 #define NDIS_RSS_INDIRECTION_TABLE_MAX_SIZE_REVISION_2 (128 * 4)
73 #define NDIS_RSS_HASH_SECRET_KEY_MAX_SIZE_REVISION_2 40
74
75 #define ITAB_NUM 128
76
77 struct ndis_recv_scale_param { /* NDIS_RECEIVE_SCALE_PARAMETERS */
78 struct ndis_obj_header hdr;
79
80 /* Qualifies the rest of the information */
81 u16 flag;
82
83 /* The base CPU number to do receive processing. not used */
84 u16 base_cpu_number;
85
86 /* This describes the hash function and type being enabled */
87 u32 hashinfo;
88
89 /* The size of indirection table array */
90 u16 indirect_tabsize;
91
92 /* The offset of the indirection table from the beginning of this
93 * structure
94 */
95 u32 indirect_taboffset;
96
97 /* The size of the hash secret key */
98 u16 hashkey_size;
99
100 /* The offset of the secret key from the beginning of this structure */
101 u32 hashkey_offset;
102
103 u32 processor_masks_offset;
104 u32 num_processor_masks;
105 u32 processor_masks_entry_size;
106 };
107
108 struct ndis_tcp_ip_checksum_info {
109 union {
110 struct {
111 u32 is_ipv4:1;
112 u32 is_ipv6:1;
113 u32 tcp_checksum:1;
114 u32 udp_checksum:1;
115 u32 ip_header_checksum:1;
116 u32 reserved:11;
117 u32 tcp_header_offset:10;
118 } transmit;
119 struct {
120 u32 tcp_checksum_failed:1;
121 u32 udp_checksum_failed:1;
122 u32 ip_checksum_failed:1;
123 u32 tcp_checksum_succeeded:1;
124 u32 udp_checksum_succeeded:1;
125 u32 ip_checksum_succeeded:1;
126 u32 loopback:1;
127 u32 tcp_checksum_value_invalid:1;
128 u32 ip_checksum_value_invalid:1;
129 } receive;
130 u32 value;
131 };
132 };
133
134 struct ndis_pkt_8021q_info {
135 union {
136 struct {
137 u32 pri:3; /* User Priority */
138 u32 cfi:1; /* Canonical Format ID */
139 u32 vlanid:12; /* VLAN ID */
140 u32 reserved:16;
141 };
142 u32 value;
143 };
144 };
145
146 /*
147 * Represent netvsc packet which contains 1 RNDIS and 1 ethernet frame
148 * within the RNDIS
149 *
150 * The size of this structure is less than 48 bytes and we can now
151 * place this structure in the skb->cb field.
152 */
153 struct hv_netvsc_packet {
154 /* Bookkeeping stuff */
155 u8 cp_partial; /* partial copy into send buffer */
156
157 u8 rmsg_size; /* RNDIS header and PPI size */
158 u8 rmsg_pgcnt; /* page count of RNDIS header and PPI */
159 u8 page_buf_cnt;
160
161 u16 q_idx;
162 u16 total_packets;
163
164 u32 total_bytes;
165 u32 send_buf_index;
166 u32 total_data_buflen;
167 };
168
169 #define NETVSC_HASH_KEYLEN 40
170
171 struct netvsc_device_info {
172 unsigned char mac_adr[ETH_ALEN];
173 u32 num_chn;
174 u32 send_sections;
175 u32 recv_sections;
176 u32 send_section_size;
177 u32 recv_section_size;
178
179 struct bpf_prog *bprog;
180
181 u8 rss_key[NETVSC_HASH_KEYLEN];
182 };
183
184 enum rndis_device_state {
185 RNDIS_DEV_UNINITIALIZED = 0,
186 RNDIS_DEV_INITIALIZING,
187 RNDIS_DEV_INITIALIZED,
188 RNDIS_DEV_DATAINITIALIZED,
189 };
190
191 struct rndis_device {
192 struct net_device *ndev;
193
194 enum rndis_device_state state;
195
196 atomic_t new_req_id;
197
198 spinlock_t request_lock;
199 struct list_head req_list;
200
201 struct work_struct mcast_work;
202 u32 filter;
203
204 bool link_state; /* 0 - link up, 1 - link down */
205
206 u8 hw_mac_adr[ETH_ALEN];
207 u8 rss_key[NETVSC_HASH_KEYLEN];
208 };
209
210
211 /* Interface */
212 struct rndis_message;
213 struct ndis_offload_params;
214 struct netvsc_device;
215 struct netvsc_channel;
216 struct net_device_context;
217
218 extern u32 netvsc_ring_bytes;
219
220 struct netvsc_device *netvsc_device_add(struct hv_device *device,
221 const struct netvsc_device_info *info);
222 int netvsc_alloc_recv_comp_ring(struct netvsc_device *net_device, u32 q_idx);
223 void netvsc_device_remove(struct hv_device *device);
224 int netvsc_send(struct net_device *net,
225 struct hv_netvsc_packet *packet,
226 struct rndis_message *rndis_msg,
227 struct hv_page_buffer *page_buffer,
228 struct sk_buff *skb,
229 bool xdp_tx);
230 void netvsc_linkstatus_callback(struct net_device *net,
231 struct rndis_message *resp,
232 void *data, u32 data_buflen);
233 int netvsc_recv_callback(struct net_device *net,
234 struct netvsc_device *nvdev,
235 struct netvsc_channel *nvchan);
236 void netvsc_channel_cb(void *context);
237 int netvsc_poll(struct napi_struct *napi, int budget);
238
239 u32 netvsc_run_xdp(struct net_device *ndev, struct netvsc_channel *nvchan,
240 struct xdp_buff *xdp);
241 unsigned int netvsc_xdp_fraglen(unsigned int len);
242 struct bpf_prog *netvsc_xdp_get(struct netvsc_device *nvdev);
243 int netvsc_xdp_set(struct net_device *dev, struct bpf_prog *prog,
244 struct netlink_ext_ack *extack,
245 struct netvsc_device *nvdev);
246 int netvsc_vf_setxdp(struct net_device *vf_netdev, struct bpf_prog *prog);
247 int netvsc_bpf(struct net_device *dev, struct netdev_bpf *bpf);
248
249 int rndis_set_subchannel(struct net_device *ndev,
250 struct netvsc_device *nvdev,
251 struct netvsc_device_info *dev_info);
252 int rndis_filter_open(struct netvsc_device *nvdev);
253 int rndis_filter_close(struct netvsc_device *nvdev);
254 struct netvsc_device *rndis_filter_device_add(struct hv_device *dev,
255 struct netvsc_device_info *info);
256 void rndis_filter_update(struct netvsc_device *nvdev);
257 void rndis_filter_device_remove(struct hv_device *dev,
258 struct netvsc_device *nvdev);
259 int rndis_filter_set_rss_param(struct rndis_device *rdev,
260 const u8 *key);
261 int rndis_filter_set_offload_params(struct net_device *ndev,
262 struct netvsc_device *nvdev,
263 struct ndis_offload_params *req_offloads);
264 int rndis_filter_receive(struct net_device *ndev,
265 struct netvsc_device *net_dev,
266 struct netvsc_channel *nvchan,
267 void *data, u32 buflen);
268
269 int rndis_filter_set_device_mac(struct netvsc_device *ndev,
270 const char *mac);
271
272 int netvsc_switch_datapath(struct net_device *nv_dev, bool vf);
273
274 #define NVSP_INVALID_PROTOCOL_VERSION ((u32)0xFFFFFFFF)
275
276 #define NVSP_PROTOCOL_VERSION_1 2
277 #define NVSP_PROTOCOL_VERSION_2 0x30002
278 #define NVSP_PROTOCOL_VERSION_4 0x40000
279 #define NVSP_PROTOCOL_VERSION_5 0x50000
280 #define NVSP_PROTOCOL_VERSION_6 0x60000
281 #define NVSP_PROTOCOL_VERSION_61 0x60001
282
283 enum {
284 NVSP_MSG_TYPE_NONE = 0,
285
286 /* Init Messages */
287 NVSP_MSG_TYPE_INIT = 1,
288 NVSP_MSG_TYPE_INIT_COMPLETE = 2,
289
290 NVSP_VERSION_MSG_START = 100,
291
292 /* Version 1 Messages */
293 NVSP_MSG1_TYPE_SEND_NDIS_VER = NVSP_VERSION_MSG_START,
294
295 NVSP_MSG1_TYPE_SEND_RECV_BUF,
296 NVSP_MSG1_TYPE_SEND_RECV_BUF_COMPLETE,
297 NVSP_MSG1_TYPE_REVOKE_RECV_BUF,
298
299 NVSP_MSG1_TYPE_SEND_SEND_BUF,
300 NVSP_MSG1_TYPE_SEND_SEND_BUF_COMPLETE,
301 NVSP_MSG1_TYPE_REVOKE_SEND_BUF,
302
303 NVSP_MSG1_TYPE_SEND_RNDIS_PKT,
304 NVSP_MSG1_TYPE_SEND_RNDIS_PKT_COMPLETE,
305
306 /* Version 2 messages */
307 NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF,
308 NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF_COMP,
309 NVSP_MSG2_TYPE_REVOKE_CHIMNEY_DELEGATED_BUF,
310
311 NVSP_MSG2_TYPE_RESUME_CHIMNEY_RX_INDICATION,
312
313 NVSP_MSG2_TYPE_TERMINATE_CHIMNEY,
314 NVSP_MSG2_TYPE_TERMINATE_CHIMNEY_COMP,
315
316 NVSP_MSG2_TYPE_INDICATE_CHIMNEY_EVENT,
317
318 NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT,
319 NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT_COMP,
320
321 NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ,
322 NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ_COMP,
323
324 NVSP_MSG2_TYPE_ALLOC_RXBUF,
325 NVSP_MSG2_TYPE_ALLOC_RXBUF_COMP,
326
327 NVSP_MSG2_TYPE_FREE_RXBUF,
328
329 NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT,
330 NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT_COMP,
331
332 NVSP_MSG2_TYPE_SEND_NDIS_CONFIG,
333
334 NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE,
335 NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP,
336
337 NVSP_MSG2_MAX = NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP,
338
339 /* Version 4 messages */
340 NVSP_MSG4_TYPE_SEND_VF_ASSOCIATION,
341 NVSP_MSG4_TYPE_SWITCH_DATA_PATH,
342 NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED,
343
344 NVSP_MSG4_MAX = NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED,
345
346 /* Version 5 messages */
347 NVSP_MSG5_TYPE_OID_QUERY_EX,
348 NVSP_MSG5_TYPE_OID_QUERY_EX_COMP,
349 NVSP_MSG5_TYPE_SUBCHANNEL,
350 NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE,
351
352 NVSP_MSG5_MAX = NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE,
353
354 /* Version 6 messages */
355 NVSP_MSG6_TYPE_PD_API,
356 NVSP_MSG6_TYPE_PD_POST_BATCH,
357
358 NVSP_MSG6_MAX = NVSP_MSG6_TYPE_PD_POST_BATCH
359 };
360
361 enum {
362 NVSP_STAT_NONE = 0,
363 NVSP_STAT_SUCCESS,
364 NVSP_STAT_FAIL,
365 NVSP_STAT_PROTOCOL_TOO_NEW,
366 NVSP_STAT_PROTOCOL_TOO_OLD,
367 NVSP_STAT_INVALID_RNDIS_PKT,
368 NVSP_STAT_BUSY,
369 NVSP_STAT_PROTOCOL_UNSUPPORTED,
370 NVSP_STAT_MAX,
371 };
372
373 struct nvsp_message_header {
374 u32 msg_type;
375 };
376
377 /* Init Messages */
378
379 /*
380 * This message is used by the VSC to initialize the channel after the channels
381 * has been opened. This message should never include anything other then
382 * versioning (i.e. this message will be the same for ever).
383 */
384 struct nvsp_message_init {
385 u32 min_protocol_ver;
386 u32 max_protocol_ver;
387 } __packed;
388
389 /*
390 * This message is used by the VSP to complete the initialization of the
391 * channel. This message should never include anything other then versioning
392 * (i.e. this message will be the same for ever).
393 */
394 struct nvsp_message_init_complete {
395 u32 negotiated_protocol_ver;
396 u32 max_mdl_chain_len;
397 u32 status;
398 } __packed;
399
400 union nvsp_message_init_uber {
401 struct nvsp_message_init init;
402 struct nvsp_message_init_complete init_complete;
403 } __packed;
404
405 /* Version 1 Messages */
406
407 /*
408 * This message is used by the VSC to send the NDIS version to the VSP. The VSP
409 * can use this information when handling OIDs sent by the VSC.
410 */
411 struct nvsp_1_message_send_ndis_version {
412 u32 ndis_major_ver;
413 u32 ndis_minor_ver;
414 } __packed;
415
416 /*
417 * This message is used by the VSC to send a receive buffer to the VSP. The VSP
418 * can then use the receive buffer to send data to the VSC.
419 */
420 struct nvsp_1_message_send_receive_buffer {
421 u32 gpadl_handle;
422 u16 id;
423 } __packed;
424
425 struct nvsp_1_receive_buffer_section {
426 u32 offset;
427 u32 sub_alloc_size;
428 u32 num_sub_allocs;
429 u32 end_offset;
430 } __packed;
431
432 /*
433 * This message is used by the VSP to acknowledge a receive buffer send by the
434 * VSC. This message must be sent by the VSP before the VSP uses the receive
435 * buffer.
436 */
437 struct nvsp_1_message_send_receive_buffer_complete {
438 u32 status;
439 u32 num_sections;
440
441 /*
442 * The receive buffer is split into two parts, a large suballocation
443 * section and a small suballocation section. These sections are then
444 * suballocated by a certain size.
445 */
446
447 /*
448 * For example, the following break up of the receive buffer has 6
449 * large suballocations and 10 small suballocations.
450 */
451
452 /*
453 * | Large Section | | Small Section |
454 * ------------------------------------------------------------
455 * | | | | | | | | | | | | | | | | | |
456 * | |
457 * LargeOffset SmallOffset
458 */
459
460 struct nvsp_1_receive_buffer_section sections[1];
461 } __packed;
462
463 /*
464 * This message is sent by the VSC to revoke the receive buffer. After the VSP
465 * completes this transaction, the vsp should never use the receive buffer
466 * again.
467 */
468 struct nvsp_1_message_revoke_receive_buffer {
469 u16 id;
470 };
471
472 /*
473 * This message is used by the VSC to send a send buffer to the VSP. The VSC
474 * can then use the send buffer to send data to the VSP.
475 */
476 struct nvsp_1_message_send_send_buffer {
477 u32 gpadl_handle;
478 u16 id;
479 } __packed;
480
481 /*
482 * This message is used by the VSP to acknowledge a send buffer sent by the
483 * VSC. This message must be sent by the VSP before the VSP uses the sent
484 * buffer.
485 */
486 struct nvsp_1_message_send_send_buffer_complete {
487 u32 status;
488
489 /*
490 * The VSC gets to choose the size of the send buffer and the VSP gets
491 * to choose the sections size of the buffer. This was done to enable
492 * dynamic reconfigurations when the cost of GPA-direct buffers
493 * decreases.
494 */
495 u32 section_size;
496 } __packed;
497
498 /*
499 * This message is sent by the VSC to revoke the send buffer. After the VSP
500 * completes this transaction, the vsp should never use the send buffer again.
501 */
502 struct nvsp_1_message_revoke_send_buffer {
503 u16 id;
504 };
505
506 /*
507 * This message is used by both the VSP and the VSC to send a RNDIS message to
508 * the opposite channel endpoint.
509 */
510 struct nvsp_1_message_send_rndis_packet {
511 /*
512 * This field is specified by RNDIS. They assume there's two different
513 * channels of communication. However, the Network VSP only has one.
514 * Therefore, the channel travels with the RNDIS packet.
515 */
516 u32 channel_type;
517
518 /*
519 * This field is used to send part or all of the data through a send
520 * buffer. This values specifies an index into the send buffer. If the
521 * index is 0xFFFFFFFF, then the send buffer is not being used and all
522 * of the data was sent through other VMBus mechanisms.
523 */
524 u32 send_buf_section_index;
525 u32 send_buf_section_size;
526 } __packed;
527
528 /*
529 * This message is used by both the VSP and the VSC to complete a RNDIS message
530 * to the opposite channel endpoint. At this point, the initiator of this
531 * message cannot use any resources associated with the original RNDIS packet.
532 */
533 struct nvsp_1_message_send_rndis_packet_complete {
534 u32 status;
535 };
536
537 union nvsp_1_message_uber {
538 struct nvsp_1_message_send_ndis_version send_ndis_ver;
539
540 struct nvsp_1_message_send_receive_buffer send_recv_buf;
541 struct nvsp_1_message_send_receive_buffer_complete
542 send_recv_buf_complete;
543 struct nvsp_1_message_revoke_receive_buffer revoke_recv_buf;
544
545 struct nvsp_1_message_send_send_buffer send_send_buf;
546 struct nvsp_1_message_send_send_buffer_complete send_send_buf_complete;
547 struct nvsp_1_message_revoke_send_buffer revoke_send_buf;
548
549 struct nvsp_1_message_send_rndis_packet send_rndis_pkt;
550 struct nvsp_1_message_send_rndis_packet_complete
551 send_rndis_pkt_complete;
552 } __packed;
553
554
555 /*
556 * Network VSP protocol version 2 messages:
557 */
558 struct nvsp_2_vsc_capability {
559 union {
560 u64 data;
561 struct {
562 u64 vmq:1;
563 u64 chimney:1;
564 u64 sriov:1;
565 u64 ieee8021q:1;
566 u64 correlation_id:1;
567 u64 teaming:1;
568 u64 vsubnetid:1;
569 u64 rsc:1;
570 };
571 };
572 } __packed;
573
574 struct nvsp_2_send_ndis_config {
575 u32 mtu;
576 u32 reserved;
577 struct nvsp_2_vsc_capability capability;
578 } __packed;
579
580 /* Allocate receive buffer */
581 struct nvsp_2_alloc_rxbuf {
582 /* Allocation ID to match the allocation request and response */
583 u32 alloc_id;
584
585 /* Length of the VM shared memory receive buffer that needs to
586 * be allocated
587 */
588 u32 len;
589 } __packed;
590
591 /* Allocate receive buffer complete */
592 struct nvsp_2_alloc_rxbuf_comp {
593 /* The NDIS_STATUS code for buffer allocation */
594 u32 status;
595
596 u32 alloc_id;
597
598 /* GPADL handle for the allocated receive buffer */
599 u32 gpadl_handle;
600
601 /* Receive buffer ID */
602 u64 recv_buf_id;
603 } __packed;
604
605 struct nvsp_2_free_rxbuf {
606 u64 recv_buf_id;
607 } __packed;
608
609 union nvsp_2_message_uber {
610 struct nvsp_2_send_ndis_config send_ndis_config;
611 struct nvsp_2_alloc_rxbuf alloc_rxbuf;
612 struct nvsp_2_alloc_rxbuf_comp alloc_rxbuf_comp;
613 struct nvsp_2_free_rxbuf free_rxbuf;
614 } __packed;
615
616 struct nvsp_4_send_vf_association {
617 /* 1: allocated, serial number is valid. 0: not allocated */
618 u32 allocated;
619
620 /* Serial number of the VF to team with */
621 u32 serial;
622 } __packed;
623
624 enum nvsp_vm_datapath {
625 NVSP_DATAPATH_SYNTHETIC = 0,
626 NVSP_DATAPATH_VF,
627 NVSP_DATAPATH_MAX
628 };
629
630 struct nvsp_4_sw_datapath {
631 u32 active_datapath; /* active data path in VM */
632 } __packed;
633
634 union nvsp_4_message_uber {
635 struct nvsp_4_send_vf_association vf_assoc;
636 struct nvsp_4_sw_datapath active_dp;
637 } __packed;
638
639 enum nvsp_subchannel_operation {
640 NVSP_SUBCHANNEL_NONE = 0,
641 NVSP_SUBCHANNEL_ALLOCATE,
642 NVSP_SUBCHANNEL_MAX
643 };
644
645 struct nvsp_5_subchannel_request {
646 u32 op;
647 u32 num_subchannels;
648 } __packed;
649
650 struct nvsp_5_subchannel_complete {
651 u32 status;
652 u32 num_subchannels; /* Actual number of subchannels allocated */
653 } __packed;
654
655 struct nvsp_5_send_indirect_table {
656 /* The number of entries in the send indirection table */
657 u32 count;
658
659 /* The offset of the send indirection table from the beginning of
660 * struct nvsp_message.
661 * The send indirection table tells which channel to put the send
662 * traffic on. Each entry is a channel number.
663 */
664 u32 offset;
665 } __packed;
666
667 union nvsp_5_message_uber {
668 struct nvsp_5_subchannel_request subchn_req;
669 struct nvsp_5_subchannel_complete subchn_comp;
670 struct nvsp_5_send_indirect_table send_table;
671 } __packed;
672
673 enum nvsp_6_pd_api_op {
674 PD_API_OP_CONFIG = 1,
675 PD_API_OP_SW_DATAPATH, /* Switch Datapath */
676 PD_API_OP_OPEN_PROVIDER,
677 PD_API_OP_CLOSE_PROVIDER,
678 PD_API_OP_CREATE_QUEUE,
679 PD_API_OP_FLUSH_QUEUE,
680 PD_API_OP_FREE_QUEUE,
681 PD_API_OP_ALLOC_COM_BUF, /* Allocate Common Buffer */
682 PD_API_OP_FREE_COM_BUF, /* Free Common Buffer */
683 PD_API_OP_MAX
684 };
685
686 struct grp_affinity {
687 u64 mask;
688 u16 grp;
689 u16 reserved[3];
690 } __packed;
691
692 struct nvsp_6_pd_api_req {
693 u32 op;
694
695 union {
696 /* MMIO information is sent from the VM to VSP */
697 struct __packed {
698 u64 mmio_pa; /* MMIO Physical Address */
699 u32 mmio_len;
700
701 /* Number of PD queues a VM can support */
702 u16 num_subchn;
703 } config;
704
705 /* Switch Datapath */
706 struct __packed {
707 /* Host Datapath Is PacketDirect */
708 u8 host_dpath_is_pd;
709
710 /* Guest PacketDirect Is Enabled */
711 u8 guest_pd_enabled;
712 } sw_dpath;
713
714 /* Open Provider*/
715 struct __packed {
716 u32 prov_id; /* Provider id */
717 u32 flag;
718 } open_prov;
719
720 /* Close Provider */
721 struct __packed {
722 u32 prov_id;
723 } cls_prov;
724
725 /* Create Queue*/
726 struct __packed {
727 u32 prov_id;
728 u16 q_id;
729 u16 q_size;
730 u8 is_recv_q;
731 u8 is_rss_q;
732 u32 recv_data_len;
733 struct grp_affinity affy;
734 } cr_q;
735
736 /* Delete Queue*/
737 struct __packed {
738 u32 prov_id;
739 u16 q_id;
740 } del_q;
741
742 /* Flush Queue */
743 struct __packed {
744 u32 prov_id;
745 u16 q_id;
746 } flush_q;
747
748 /* Allocate Common Buffer */
749 struct __packed {
750 u32 len;
751 u32 pf_node; /* Preferred Node */
752 u16 region_id;
753 } alloc_com_buf;
754
755 /* Free Common Buffer */
756 struct __packed {
757 u32 len;
758 u64 pa; /* Physical Address */
759 u32 pf_node; /* Preferred Node */
760 u16 region_id;
761 u8 cache_type;
762 } free_com_buf;
763 } __packed;
764 } __packed;
765
766 struct nvsp_6_pd_api_comp {
767 u32 op;
768 u32 status;
769
770 union {
771 struct __packed {
772 /* actual number of PD queues allocated to the VM */
773 u16 num_pd_q;
774
775 /* Num Receive Rss PD Queues */
776 u8 num_rss_q;
777
778 u8 is_supported; /* Is supported by VSP */
779 u8 is_enabled; /* Is enabled by VSP */
780 } config;
781
782 /* Open Provider */
783 struct __packed {
784 u32 prov_id;
785 } open_prov;
786
787 /* Create Queue */
788 struct __packed {
789 u32 prov_id;
790 u16 q_id;
791 u16 q_size;
792 u32 recv_data_len;
793 struct grp_affinity affy;
794 } cr_q;
795
796 /* Allocate Common Buffer */
797 struct __packed {
798 u64 pa; /* Physical Address */
799 u32 len;
800 u32 pf_node; /* Preferred Node */
801 u16 region_id;
802 u8 cache_type;
803 } alloc_com_buf;
804 } __packed;
805 } __packed;
806
807 struct nvsp_6_pd_buf {
808 u32 region_offset;
809 u16 region_id;
810 u16 is_partial:1;
811 u16 reserved:15;
812 } __packed;
813
814 struct nvsp_6_pd_batch_msg {
815 struct nvsp_message_header hdr;
816 u16 count;
817 u16 guest2host:1;
818 u16 is_recv:1;
819 u16 reserved:14;
820 struct nvsp_6_pd_buf pd_buf[0];
821 } __packed;
822
823 union nvsp_6_message_uber {
824 struct nvsp_6_pd_api_req pd_req;
825 struct nvsp_6_pd_api_comp pd_comp;
826 } __packed;
827
828 union nvsp_all_messages {
829 union nvsp_message_init_uber init_msg;
830 union nvsp_1_message_uber v1_msg;
831 union nvsp_2_message_uber v2_msg;
832 union nvsp_4_message_uber v4_msg;
833 union nvsp_5_message_uber v5_msg;
834 union nvsp_6_message_uber v6_msg;
835 } __packed;
836
837 /* ALL Messages */
838 struct nvsp_message {
839 struct nvsp_message_header hdr;
840 union nvsp_all_messages msg;
841 } __packed;
842
843
844 #define NETVSC_MTU 65535
845 #define NETVSC_MTU_MIN ETH_MIN_MTU
846
847 /* Max buffer sizes allowed by a host */
848 #define NETVSC_RECEIVE_BUFFER_SIZE (1024 * 1024 * 31) /* 31MB */
849 #define NETVSC_RECEIVE_BUFFER_SIZE_LEGACY (1024 * 1024 * 15) /* 15MB */
850 #define NETVSC_RECEIVE_BUFFER_DEFAULT (1024 * 1024 * 16)
851
852 #define NETVSC_SEND_BUFFER_SIZE (1024 * 1024 * 15) /* 15MB */
853 #define NETVSC_SEND_BUFFER_DEFAULT (1024 * 1024)
854
855 #define NETVSC_INVALID_INDEX -1
856
857 #define NETVSC_SEND_SECTION_SIZE 6144
858 #define NETVSC_RECV_SECTION_SIZE 1728
859
860 /* Default size of TX buf: 1MB, RX buf: 16MB */
861 #define NETVSC_MIN_TX_SECTIONS 10
862 #define NETVSC_DEFAULT_TX (NETVSC_SEND_BUFFER_DEFAULT \
863 / NETVSC_SEND_SECTION_SIZE)
864 #define NETVSC_MIN_RX_SECTIONS 10
865 #define NETVSC_DEFAULT_RX (NETVSC_RECEIVE_BUFFER_DEFAULT \
866 / NETVSC_RECV_SECTION_SIZE)
867
868 #define NETVSC_RECEIVE_BUFFER_ID 0xcafe
869 #define NETVSC_SEND_BUFFER_ID 0
870
871 #define NETVSC_SUPPORTED_HW_FEATURES (NETIF_F_RXCSUM | NETIF_F_IP_CSUM | \
872 NETIF_F_TSO | NETIF_F_IPV6_CSUM | \
873 NETIF_F_TSO6 | NETIF_F_LRO | \
874 NETIF_F_SG | NETIF_F_RXHASH)
875
876 #define VRSS_SEND_TAB_SIZE 16 /* must be power of 2 */
877 #define VRSS_CHANNEL_MAX 64
878 #define VRSS_CHANNEL_DEFAULT 8
879
880 #define RNDIS_MAX_PKT_DEFAULT 8
881 #define RNDIS_PKT_ALIGN_DEFAULT 8
882
883 #define NETVSC_XDP_HDRM 256
884
885 #define NETVSC_MIN_OUT_MSG_SIZE (sizeof(struct vmpacket_descriptor) + \
886 sizeof(struct nvsp_message))
887 #define NETVSC_MIN_IN_MSG_SIZE sizeof(struct vmpacket_descriptor)
888
889 /* Estimated requestor size:
890 * out_ring_size/min_out_msg_size + in_ring_size/min_in_msg_size
891 */
netvsc_rqstor_size(unsigned long ringbytes)892 static inline u32 netvsc_rqstor_size(unsigned long ringbytes)
893 {
894 return ringbytes / NETVSC_MIN_OUT_MSG_SIZE +
895 ringbytes / NETVSC_MIN_IN_MSG_SIZE;
896 }
897
898 #define NETVSC_XFER_HEADER_SIZE(rng_cnt) \
899 (offsetof(struct vmtransfer_page_packet_header, ranges) + \
900 (rng_cnt) * sizeof(struct vmtransfer_page_range))
901
902 struct multi_send_data {
903 struct sk_buff *skb; /* skb containing the pkt */
904 struct hv_netvsc_packet *pkt; /* netvsc pkt pending */
905 u32 count; /* counter of batched packets */
906 };
907
908 struct recv_comp_data {
909 u64 tid; /* transaction id */
910 u32 status;
911 };
912
913 struct multi_recv_comp {
914 struct recv_comp_data *slots;
915 u32 first; /* first data entry */
916 u32 next; /* next entry for writing */
917 };
918
919 #define NVSP_RSC_MAX 562 /* Max #RSC frags in a vmbus xfer page pkt */
920
921 struct nvsc_rsc {
922 struct ndis_pkt_8021q_info vlan;
923 struct ndis_tcp_ip_checksum_info csum_info;
924 u32 hash_info;
925 u8 ppi_flags; /* valid/present bits for the above PPIs */
926 u8 is_last; /* last RNDIS msg in a vmtransfer_page */
927 u32 cnt; /* #fragments in an RSC packet */
928 u32 pktlen; /* Full packet length */
929 void *data[NVSP_RSC_MAX];
930 u32 len[NVSP_RSC_MAX];
931 };
932
933 #define NVSC_RSC_VLAN BIT(0) /* valid/present bit for 'vlan' */
934 #define NVSC_RSC_CSUM_INFO BIT(1) /* valid/present bit for 'csum_info' */
935 #define NVSC_RSC_HASH_INFO BIT(2) /* valid/present bit for 'hash_info' */
936
937 struct netvsc_stats {
938 u64 packets;
939 u64 bytes;
940 u64 broadcast;
941 u64 multicast;
942 u64 xdp_drop;
943 struct u64_stats_sync syncp;
944 };
945
946 struct netvsc_ethtool_stats {
947 unsigned long tx_scattered;
948 unsigned long tx_no_memory;
949 unsigned long tx_no_space;
950 unsigned long tx_too_big;
951 unsigned long tx_busy;
952 unsigned long tx_send_full;
953 unsigned long rx_comp_busy;
954 unsigned long rx_no_memory;
955 unsigned long stop_queue;
956 unsigned long wake_queue;
957 unsigned long vlan_error;
958 };
959
960 struct netvsc_ethtool_pcpu_stats {
961 u64 rx_packets;
962 u64 rx_bytes;
963 u64 tx_packets;
964 u64 tx_bytes;
965 u64 vf_rx_packets;
966 u64 vf_rx_bytes;
967 u64 vf_tx_packets;
968 u64 vf_tx_bytes;
969 };
970
971 struct netvsc_vf_pcpu_stats {
972 u64 rx_packets;
973 u64 rx_bytes;
974 u64 tx_packets;
975 u64 tx_bytes;
976 struct u64_stats_sync syncp;
977 u32 tx_dropped;
978 };
979
980 struct netvsc_reconfig {
981 struct list_head list;
982 u32 event;
983 };
984
985 /* L4 hash bits for different protocols */
986 #define HV_TCP4_L4HASH 1
987 #define HV_TCP6_L4HASH 2
988 #define HV_UDP4_L4HASH 4
989 #define HV_UDP6_L4HASH 8
990 #define HV_DEFAULT_L4HASH (HV_TCP4_L4HASH | HV_TCP6_L4HASH | HV_UDP4_L4HASH | \
991 HV_UDP6_L4HASH)
992
993 /* The context of the netvsc device */
994 struct net_device_context {
995 /* point back to our device context */
996 struct hv_device *device_ctx;
997 /* netvsc_device */
998 struct netvsc_device __rcu *nvdev;
999 /* list of netvsc net_devices */
1000 struct list_head list;
1001 /* reconfigure work */
1002 struct delayed_work dwork;
1003 /* last reconfig time */
1004 unsigned long last_reconfig;
1005 /* reconfig events */
1006 struct list_head reconfig_events;
1007 /* list protection */
1008 spinlock_t lock;
1009
1010 u32 msg_enable; /* debug level */
1011
1012 u32 tx_checksum_mask;
1013
1014 u32 tx_table[VRSS_SEND_TAB_SIZE];
1015
1016 u16 rx_table[ITAB_NUM];
1017
1018 /* Ethtool settings */
1019 u8 duplex;
1020 u32 speed;
1021 u32 l4_hash; /* L4 hash settings */
1022 struct netvsc_ethtool_stats eth_stats;
1023
1024 /* State to manage the associated VF interface. */
1025 struct net_device __rcu *vf_netdev;
1026 struct netvsc_vf_pcpu_stats __percpu *vf_stats;
1027 struct delayed_work vf_takeover;
1028
1029 /* 1: allocated, serial number is valid. 0: not allocated */
1030 u32 vf_alloc;
1031 /* Serial number of the VF to team with */
1032 u32 vf_serial;
1033
1034 /* Is the current data path through the VF NIC? */
1035 bool data_path_is_vf;
1036
1037 /* Used to temporarily save the config info across hibernation */
1038 struct netvsc_device_info *saved_netvsc_dev_info;
1039 };
1040
1041 /* Per channel data */
1042 struct netvsc_channel {
1043 struct vmbus_channel *channel;
1044 struct netvsc_device *net_device;
1045 void *recv_buf; /* buffer to copy packets out from the receive buffer */
1046 const struct vmpacket_descriptor *desc;
1047 struct napi_struct napi;
1048 struct multi_send_data msd;
1049 struct multi_recv_comp mrc;
1050 atomic_t queue_sends;
1051 struct nvsc_rsc rsc;
1052
1053 struct bpf_prog __rcu *bpf_prog;
1054 struct xdp_rxq_info xdp_rxq;
1055
1056 struct netvsc_stats tx_stats;
1057 struct netvsc_stats rx_stats;
1058 };
1059
1060 /* Per netvsc device */
1061 struct netvsc_device {
1062 u32 nvsp_version;
1063
1064 wait_queue_head_t wait_drain;
1065 bool destroy;
1066 bool tx_disable; /* if true, do not wake up queue again */
1067
1068 /* Receive buffer allocated by us but manages by NetVSP */
1069 void *recv_buf;
1070 u32 recv_buf_size; /* allocated bytes */
1071 u32 recv_buf_gpadl_handle;
1072 u32 recv_section_cnt;
1073 u32 recv_section_size;
1074 u32 recv_completion_cnt;
1075
1076 /* Send buffer allocated by us */
1077 void *send_buf;
1078 u32 send_buf_gpadl_handle;
1079 u32 send_section_cnt;
1080 u32 send_section_size;
1081 unsigned long *send_section_map;
1082
1083 /* Used for NetVSP initialization protocol */
1084 struct completion channel_init_wait;
1085 struct nvsp_message channel_init_pkt;
1086
1087 struct nvsp_message revoke_packet;
1088
1089 u32 max_chn;
1090 u32 num_chn;
1091
1092 atomic_t open_chn;
1093 struct work_struct subchan_work;
1094 wait_queue_head_t subchan_open;
1095
1096 struct rndis_device *extension;
1097
1098 u32 max_pkt; /* max number of pkt in one send, e.g. 8 */
1099 u32 pkt_align; /* alignment bytes, e.g. 8 */
1100
1101 struct netvsc_channel chan_table[VRSS_CHANNEL_MAX];
1102
1103 struct rcu_head rcu;
1104 };
1105
1106 /* NdisInitialize message */
1107 struct rndis_initialize_request {
1108 u32 req_id;
1109 u32 major_ver;
1110 u32 minor_ver;
1111 u32 max_xfer_size;
1112 };
1113
1114 /* Response to NdisInitialize */
1115 struct rndis_initialize_complete {
1116 u32 req_id;
1117 u32 status;
1118 u32 major_ver;
1119 u32 minor_ver;
1120 u32 dev_flags;
1121 u32 medium;
1122 u32 max_pkt_per_msg;
1123 u32 max_xfer_size;
1124 u32 pkt_alignment_factor;
1125 u32 af_list_offset;
1126 u32 af_list_size;
1127 };
1128
1129 /* Call manager devices only: Information about an address family */
1130 /* supported by the device is appended to the response to NdisInitialize. */
1131 struct rndis_co_address_family {
1132 u32 address_family;
1133 u32 major_ver;
1134 u32 minor_ver;
1135 };
1136
1137 /* NdisHalt message */
1138 struct rndis_halt_request {
1139 u32 req_id;
1140 };
1141
1142 /* NdisQueryRequest message */
1143 struct rndis_query_request {
1144 u32 req_id;
1145 u32 oid;
1146 u32 info_buflen;
1147 u32 info_buf_offset;
1148 u32 dev_vc_handle;
1149 };
1150
1151 /* Response to NdisQueryRequest */
1152 struct rndis_query_complete {
1153 u32 req_id;
1154 u32 status;
1155 u32 info_buflen;
1156 u32 info_buf_offset;
1157 };
1158
1159 /* NdisSetRequest message */
1160 struct rndis_set_request {
1161 u32 req_id;
1162 u32 oid;
1163 u32 info_buflen;
1164 u32 info_buf_offset;
1165 u32 dev_vc_handle;
1166 };
1167
1168 /* Response to NdisSetRequest */
1169 struct rndis_set_complete {
1170 u32 req_id;
1171 u32 status;
1172 };
1173
1174 /* NdisReset message */
1175 struct rndis_reset_request {
1176 u32 reserved;
1177 };
1178
1179 /* Response to NdisReset */
1180 struct rndis_reset_complete {
1181 u32 status;
1182 u32 addressing_reset;
1183 };
1184
1185 /* NdisMIndicateStatus message */
1186 struct rndis_indicate_status {
1187 u32 status;
1188 u32 status_buflen;
1189 u32 status_buf_offset;
1190 };
1191
1192 /* Diagnostic information passed as the status buffer in */
1193 /* struct rndis_indicate_status messages signifying error conditions. */
1194 struct rndis_diagnostic_info {
1195 u32 diag_status;
1196 u32 error_offset;
1197 };
1198
1199 /* NdisKeepAlive message */
1200 struct rndis_keepalive_request {
1201 u32 req_id;
1202 };
1203
1204 /* Response to NdisKeepAlive */
1205 struct rndis_keepalive_complete {
1206 u32 req_id;
1207 u32 status;
1208 };
1209
1210 /*
1211 * Data message. All Offset fields contain byte offsets from the beginning of
1212 * struct rndis_packet. All Length fields are in bytes. VcHandle is set
1213 * to 0 for connectionless data, otherwise it contains the VC handle.
1214 */
1215 struct rndis_packet {
1216 u32 data_offset;
1217 u32 data_len;
1218 u32 oob_data_offset;
1219 u32 oob_data_len;
1220 u32 num_oob_data_elements;
1221 u32 per_pkt_info_offset;
1222 u32 per_pkt_info_len;
1223 u32 vc_handle;
1224 u32 reserved;
1225 };
1226
1227 /* Optional Out of Band data associated with a Data message. */
1228 struct rndis_oobd {
1229 u32 size;
1230 u32 type;
1231 u32 class_info_offset;
1232 };
1233
1234 /* Packet extension field contents associated with a Data message. */
1235 struct rndis_per_packet_info {
1236 u32 size;
1237 u32 type:31;
1238 u32 internal:1;
1239 u32 ppi_offset;
1240 };
1241
1242 enum ndis_per_pkt_info_type {
1243 TCPIP_CHKSUM_PKTINFO,
1244 IPSEC_PKTINFO,
1245 TCP_LARGESEND_PKTINFO,
1246 CLASSIFICATION_HANDLE_PKTINFO,
1247 NDIS_RESERVED,
1248 SG_LIST_PKTINFO,
1249 IEEE_8021Q_INFO,
1250 ORIGINAL_PKTINFO,
1251 PACKET_CANCEL_ID,
1252 NBL_HASH_VALUE = PACKET_CANCEL_ID,
1253 ORIGINAL_NET_BUFLIST,
1254 CACHED_NET_BUFLIST,
1255 SHORT_PKT_PADINFO,
1256 MAX_PER_PKT_INFO
1257 };
1258
1259 enum rndis_per_pkt_info_interal_type {
1260 RNDIS_PKTINFO_ID = 1,
1261 /* Add more members here */
1262
1263 RNDIS_PKTINFO_MAX
1264 };
1265
1266 #define RNDIS_PKTINFO_SUBALLOC BIT(0)
1267 #define RNDIS_PKTINFO_1ST_FRAG BIT(1)
1268 #define RNDIS_PKTINFO_LAST_FRAG BIT(2)
1269
1270 #define RNDIS_PKTINFO_ID_V1 1
1271
1272 struct rndis_pktinfo_id {
1273 u8 ver;
1274 u8 flag;
1275 u16 pkt_id;
1276 };
1277
1278 struct ndis_object_header {
1279 u8 type;
1280 u8 revision;
1281 u16 size;
1282 };
1283
1284 #define NDIS_OBJECT_TYPE_DEFAULT 0x80
1285 #define NDIS_OFFLOAD_PARAMETERS_REVISION_3 3
1286 #define NDIS_OFFLOAD_PARAMETERS_REVISION_2 2
1287 #define NDIS_OFFLOAD_PARAMETERS_REVISION_1 1
1288
1289 #define NDIS_OFFLOAD_PARAMETERS_NO_CHANGE 0
1290 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_DISABLED 1
1291 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_ENABLED 2
1292 #define NDIS_OFFLOAD_PARAMETERS_LSOV1_ENABLED 2
1293 #define NDIS_OFFLOAD_PARAMETERS_RSC_DISABLED 1
1294 #define NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED 2
1295 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_DISABLED 1
1296 #define NDIS_OFFLOAD_PARAMETERS_TX_ENABLED_RX_DISABLED 2
1297 #define NDIS_OFFLOAD_PARAMETERS_RX_ENABLED_TX_DISABLED 3
1298 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED 4
1299
1300 #define NDIS_TCP_LARGE_SEND_OFFLOAD_V2_TYPE 1
1301 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV4 0
1302 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV6 1
1303
1304 #define VERSION_4_OFFLOAD_SIZE 22
1305 /*
1306 * New offload OIDs for NDIS 6
1307 */
1308 #define OID_TCP_OFFLOAD_CURRENT_CONFIG 0xFC01020B /* query only */
1309 #define OID_TCP_OFFLOAD_PARAMETERS 0xFC01020C /* set only */
1310 #define OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020D/* query only */
1311 #define OID_TCP_CONNECTION_OFFLOAD_CURRENT_CONFIG 0xFC01020E /* query only */
1312 #define OID_TCP_CONNECTION_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020F /* query */
1313 #define OID_OFFLOAD_ENCAPSULATION 0x0101010A /* set/query */
1314
1315 /*
1316 * OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES
1317 * ndis_type: NDIS_OBJTYPE_OFFLOAD
1318 */
1319
1320 #define NDIS_OFFLOAD_ENCAP_NONE 0x0000
1321 #define NDIS_OFFLOAD_ENCAP_NULL 0x0001
1322 #define NDIS_OFFLOAD_ENCAP_8023 0x0002
1323 #define NDIS_OFFLOAD_ENCAP_8023PQ 0x0004
1324 #define NDIS_OFFLOAD_ENCAP_8023PQ_OOB 0x0008
1325 #define NDIS_OFFLOAD_ENCAP_RFC1483 0x0010
1326
1327 struct ndis_csum_offload {
1328 u32 ip4_txenc;
1329 u32 ip4_txcsum;
1330 #define NDIS_TXCSUM_CAP_IP4OPT 0x001
1331 #define NDIS_TXCSUM_CAP_TCP4OPT 0x004
1332 #define NDIS_TXCSUM_CAP_TCP4 0x010
1333 #define NDIS_TXCSUM_CAP_UDP4 0x040
1334 #define NDIS_TXCSUM_CAP_IP4 0x100
1335
1336 #define NDIS_TXCSUM_ALL_TCP4 (NDIS_TXCSUM_CAP_TCP4 | NDIS_TXCSUM_CAP_TCP4OPT)
1337
1338 u32 ip4_rxenc;
1339 u32 ip4_rxcsum;
1340 #define NDIS_RXCSUM_CAP_IP4OPT 0x001
1341 #define NDIS_RXCSUM_CAP_TCP4OPT 0x004
1342 #define NDIS_RXCSUM_CAP_TCP4 0x010
1343 #define NDIS_RXCSUM_CAP_UDP4 0x040
1344 #define NDIS_RXCSUM_CAP_IP4 0x100
1345 u32 ip6_txenc;
1346 u32 ip6_txcsum;
1347 #define NDIS_TXCSUM_CAP_IP6EXT 0x001
1348 #define NDIS_TXCSUM_CAP_TCP6OPT 0x004
1349 #define NDIS_TXCSUM_CAP_TCP6 0x010
1350 #define NDIS_TXCSUM_CAP_UDP6 0x040
1351 u32 ip6_rxenc;
1352 u32 ip6_rxcsum;
1353 #define NDIS_RXCSUM_CAP_IP6EXT 0x001
1354 #define NDIS_RXCSUM_CAP_TCP6OPT 0x004
1355 #define NDIS_RXCSUM_CAP_TCP6 0x010
1356 #define NDIS_RXCSUM_CAP_UDP6 0x040
1357
1358 #define NDIS_TXCSUM_ALL_TCP6 (NDIS_TXCSUM_CAP_TCP6 | \
1359 NDIS_TXCSUM_CAP_TCP6OPT | \
1360 NDIS_TXCSUM_CAP_IP6EXT)
1361 };
1362
1363 struct ndis_lsov1_offload {
1364 u32 encap;
1365 u32 maxsize;
1366 u32 minsegs;
1367 u32 opts;
1368 };
1369
1370 struct ndis_ipsecv1_offload {
1371 u32 encap;
1372 u32 ah_esp;
1373 u32 xport_tun;
1374 u32 ip4_opts;
1375 u32 flags;
1376 u32 ip4_ah;
1377 u32 ip4_esp;
1378 };
1379
1380 struct ndis_lsov2_offload {
1381 u32 ip4_encap;
1382 u32 ip4_maxsz;
1383 u32 ip4_minsg;
1384 u32 ip6_encap;
1385 u32 ip6_maxsz;
1386 u32 ip6_minsg;
1387 u32 ip6_opts;
1388 #define NDIS_LSOV2_CAP_IP6EXT 0x001
1389 #define NDIS_LSOV2_CAP_TCP6OPT 0x004
1390
1391 #define NDIS_LSOV2_CAP_IP6 (NDIS_LSOV2_CAP_IP6EXT | \
1392 NDIS_LSOV2_CAP_TCP6OPT)
1393 };
1394
1395 struct ndis_ipsecv2_offload {
1396 u32 encap;
1397 u8 ip6;
1398 u8 ip4opt;
1399 u8 ip6ext;
1400 u8 ah;
1401 u8 esp;
1402 u8 ah_esp;
1403 u8 xport;
1404 u8 tun;
1405 u8 xport_tun;
1406 u8 lso;
1407 u8 extseq;
1408 u32 udp_esp;
1409 u32 auth;
1410 u32 crypto;
1411 u32 sa_caps;
1412 };
1413
1414 struct ndis_rsc_offload {
1415 u8 ip4;
1416 u8 ip6;
1417 };
1418
1419 struct ndis_encap_offload {
1420 u32 flags;
1421 u32 maxhdr;
1422 };
1423
1424 struct ndis_offload {
1425 struct ndis_object_header header;
1426 struct ndis_csum_offload csum;
1427 struct ndis_lsov1_offload lsov1;
1428 struct ndis_ipsecv1_offload ipsecv1;
1429 struct ndis_lsov2_offload lsov2;
1430 u32 flags;
1431 /* NDIS >= 6.1 */
1432 struct ndis_ipsecv2_offload ipsecv2;
1433 /* NDIS >= 6.30 */
1434 struct ndis_rsc_offload rsc;
1435 struct ndis_encap_offload encap_gre;
1436 };
1437
1438 #define NDIS_OFFLOAD_SIZE sizeof(struct ndis_offload)
1439 #define NDIS_OFFLOAD_SIZE_6_0 offsetof(struct ndis_offload, ipsecv2)
1440 #define NDIS_OFFLOAD_SIZE_6_1 offsetof(struct ndis_offload, rsc)
1441
1442 struct ndis_offload_params {
1443 struct ndis_object_header header;
1444 u8 ip_v4_csum;
1445 u8 tcp_ip_v4_csum;
1446 u8 udp_ip_v4_csum;
1447 u8 tcp_ip_v6_csum;
1448 u8 udp_ip_v6_csum;
1449 u8 lso_v1;
1450 u8 ip_sec_v1;
1451 u8 lso_v2_ipv4;
1452 u8 lso_v2_ipv6;
1453 u8 tcp_connection_ip_v4;
1454 u8 tcp_connection_ip_v6;
1455 u32 flags;
1456 u8 ip_sec_v2;
1457 u8 ip_sec_v2_ip_v4;
1458 struct {
1459 u8 rsc_ip_v4;
1460 u8 rsc_ip_v6;
1461 };
1462 struct {
1463 u8 encapsulated_packet_task_offload;
1464 u8 encapsulation_types;
1465 };
1466 };
1467
1468 struct ndis_tcp_lso_info {
1469 union {
1470 struct {
1471 u32 unused:30;
1472 u32 type:1;
1473 u32 reserved2:1;
1474 } transmit;
1475 struct {
1476 u32 mss:20;
1477 u32 tcp_header_offset:10;
1478 u32 type:1;
1479 u32 reserved2:1;
1480 } lso_v1_transmit;
1481 struct {
1482 u32 tcp_payload:30;
1483 u32 type:1;
1484 u32 reserved2:1;
1485 } lso_v1_transmit_complete;
1486 struct {
1487 u32 mss:20;
1488 u32 tcp_header_offset:10;
1489 u32 type:1;
1490 u32 ip_version:1;
1491 } lso_v2_transmit;
1492 struct {
1493 u32 reserved:30;
1494 u32 type:1;
1495 u32 reserved2:1;
1496 } lso_v2_transmit_complete;
1497 u32 value;
1498 };
1499 };
1500
1501 #define NDIS_VLAN_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1502 sizeof(struct ndis_pkt_8021q_info))
1503
1504 #define NDIS_CSUM_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1505 sizeof(struct ndis_tcp_ip_checksum_info))
1506
1507 #define NDIS_LSO_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1508 sizeof(struct ndis_tcp_lso_info))
1509
1510 #define NDIS_HASH_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1511 sizeof(u32))
1512
1513 /* Total size of all PPI data */
1514 #define NDIS_ALL_PPI_SIZE (NDIS_VLAN_PPI_SIZE + NDIS_CSUM_PPI_SIZE + \
1515 NDIS_LSO_PPI_SIZE + NDIS_HASH_PPI_SIZE)
1516
1517 /* Format of Information buffer passed in a SetRequest for the OID */
1518 /* OID_GEN_RNDIS_CONFIG_PARAMETER. */
1519 struct rndis_config_parameter_info {
1520 u32 parameter_name_offset;
1521 u32 parameter_name_length;
1522 u32 parameter_type;
1523 u32 parameter_value_offset;
1524 u32 parameter_value_length;
1525 };
1526
1527 /* Values for ParameterType in struct rndis_config_parameter_info */
1528 #define RNDIS_CONFIG_PARAM_TYPE_INTEGER 0
1529 #define RNDIS_CONFIG_PARAM_TYPE_STRING 2
1530
1531 /* CONDIS Miniport messages for connection oriented devices */
1532 /* that do not implement a call manager. */
1533
1534 /* CoNdisMiniportCreateVc message */
1535 struct rcondis_mp_create_vc {
1536 u32 req_id;
1537 u32 ndis_vc_handle;
1538 };
1539
1540 /* Response to CoNdisMiniportCreateVc */
1541 struct rcondis_mp_create_vc_complete {
1542 u32 req_id;
1543 u32 dev_vc_handle;
1544 u32 status;
1545 };
1546
1547 /* CoNdisMiniportDeleteVc message */
1548 struct rcondis_mp_delete_vc {
1549 u32 req_id;
1550 u32 dev_vc_handle;
1551 };
1552
1553 /* Response to CoNdisMiniportDeleteVc */
1554 struct rcondis_mp_delete_vc_complete {
1555 u32 req_id;
1556 u32 status;
1557 };
1558
1559 /* CoNdisMiniportQueryRequest message */
1560 struct rcondis_mp_query_request {
1561 u32 req_id;
1562 u32 request_type;
1563 u32 oid;
1564 u32 dev_vc_handle;
1565 u32 info_buflen;
1566 u32 info_buf_offset;
1567 };
1568
1569 /* CoNdisMiniportSetRequest message */
1570 struct rcondis_mp_set_request {
1571 u32 req_id;
1572 u32 request_type;
1573 u32 oid;
1574 u32 dev_vc_handle;
1575 u32 info_buflen;
1576 u32 info_buf_offset;
1577 };
1578
1579 /* CoNdisIndicateStatus message */
1580 struct rcondis_indicate_status {
1581 u32 ndis_vc_handle;
1582 u32 status;
1583 u32 status_buflen;
1584 u32 status_buf_offset;
1585 };
1586
1587 /* CONDIS Call/VC parameters */
1588 struct rcondis_specific_parameters {
1589 u32 parameter_type;
1590 u32 parameter_length;
1591 u32 parameter_lffset;
1592 };
1593
1594 struct rcondis_media_parameters {
1595 u32 flags;
1596 u32 reserved1;
1597 u32 reserved2;
1598 struct rcondis_specific_parameters media_specific;
1599 };
1600
1601 struct rndis_flowspec {
1602 u32 token_rate;
1603 u32 token_bucket_size;
1604 u32 peak_bandwidth;
1605 u32 latency;
1606 u32 delay_variation;
1607 u32 service_type;
1608 u32 max_sdu_size;
1609 u32 minimum_policed_size;
1610 };
1611
1612 struct rcondis_call_manager_parameters {
1613 struct rndis_flowspec transmit;
1614 struct rndis_flowspec receive;
1615 struct rcondis_specific_parameters call_mgr_specific;
1616 };
1617
1618 /* CoNdisMiniportActivateVc message */
1619 struct rcondis_mp_activate_vc_request {
1620 u32 req_id;
1621 u32 flags;
1622 u32 dev_vc_handle;
1623 u32 media_params_offset;
1624 u32 media_params_length;
1625 u32 call_mgr_params_offset;
1626 u32 call_mgr_params_length;
1627 };
1628
1629 /* Response to CoNdisMiniportActivateVc */
1630 struct rcondis_mp_activate_vc_complete {
1631 u32 req_id;
1632 u32 status;
1633 };
1634
1635 /* CoNdisMiniportDeactivateVc message */
1636 struct rcondis_mp_deactivate_vc_request {
1637 u32 req_id;
1638 u32 flags;
1639 u32 dev_vc_handle;
1640 };
1641
1642 /* Response to CoNdisMiniportDeactivateVc */
1643 struct rcondis_mp_deactivate_vc_complete {
1644 u32 req_id;
1645 u32 status;
1646 };
1647
1648
1649 /* union with all of the RNDIS messages */
1650 union rndis_message_container {
1651 struct rndis_packet pkt;
1652 struct rndis_initialize_request init_req;
1653 struct rndis_halt_request halt_req;
1654 struct rndis_query_request query_req;
1655 struct rndis_set_request set_req;
1656 struct rndis_reset_request reset_req;
1657 struct rndis_keepalive_request keep_alive_req;
1658 struct rndis_indicate_status indicate_status;
1659 struct rndis_initialize_complete init_complete;
1660 struct rndis_query_complete query_complete;
1661 struct rndis_set_complete set_complete;
1662 struct rndis_reset_complete reset_complete;
1663 struct rndis_keepalive_complete keep_alive_complete;
1664 struct rcondis_mp_create_vc co_miniport_create_vc;
1665 struct rcondis_mp_delete_vc co_miniport_delete_vc;
1666 struct rcondis_indicate_status co_indicate_status;
1667 struct rcondis_mp_activate_vc_request co_miniport_activate_vc;
1668 struct rcondis_mp_deactivate_vc_request co_miniport_deactivate_vc;
1669 struct rcondis_mp_create_vc_complete co_miniport_create_vc_complete;
1670 struct rcondis_mp_delete_vc_complete co_miniport_delete_vc_complete;
1671 struct rcondis_mp_activate_vc_complete co_miniport_activate_vc_complete;
1672 struct rcondis_mp_deactivate_vc_complete
1673 co_miniport_deactivate_vc_complete;
1674 };
1675
1676 /* Remote NDIS message format */
1677 struct rndis_message {
1678 u32 ndis_msg_type;
1679
1680 /* Total length of this message, from the beginning */
1681 /* of the struct rndis_message, in bytes. */
1682 u32 msg_len;
1683
1684 /* Actual message */
1685 union rndis_message_container msg;
1686 };
1687
1688
1689 /* Handy macros */
1690
1691 /* get the size of an RNDIS message. Pass in the message type, */
1692 /* struct rndis_set_request, struct rndis_packet for example */
1693 #define RNDIS_MESSAGE_SIZE(msg) \
1694 (sizeof(msg) + (sizeof(struct rndis_message) - \
1695 sizeof(union rndis_message_container)))
1696
1697 #define RNDIS_HEADER_SIZE (sizeof(struct rndis_message) - \
1698 sizeof(union rndis_message_container))
1699
1700 #define RNDIS_AND_PPI_SIZE (sizeof(struct rndis_message) + NDIS_ALL_PPI_SIZE)
1701
1702 #define NDIS_PACKET_TYPE_DIRECTED 0x00000001
1703 #define NDIS_PACKET_TYPE_MULTICAST 0x00000002
1704 #define NDIS_PACKET_TYPE_ALL_MULTICAST 0x00000004
1705 #define NDIS_PACKET_TYPE_BROADCAST 0x00000008
1706 #define NDIS_PACKET_TYPE_SOURCE_ROUTING 0x00000010
1707 #define NDIS_PACKET_TYPE_PROMISCUOUS 0x00000020
1708 #define NDIS_PACKET_TYPE_SMT 0x00000040
1709 #define NDIS_PACKET_TYPE_ALL_LOCAL 0x00000080
1710 #define NDIS_PACKET_TYPE_GROUP 0x00000100
1711 #define NDIS_PACKET_TYPE_ALL_FUNCTIONAL 0x00000200
1712 #define NDIS_PACKET_TYPE_FUNCTIONAL 0x00000400
1713 #define NDIS_PACKET_TYPE_MAC_FRAME 0x00000800
1714
1715 #define TRANSPORT_INFO_NOT_IP 0
1716 #define TRANSPORT_INFO_IPV4_TCP 0x01
1717 #define TRANSPORT_INFO_IPV4_UDP 0x02
1718 #define TRANSPORT_INFO_IPV6_TCP 0x10
1719 #define TRANSPORT_INFO_IPV6_UDP 0x20
1720
1721 #define RETRY_US_LO 5000
1722 #define RETRY_US_HI 10000
1723 #define RETRY_MAX 2000 /* >10 sec */
1724
1725 #endif /* _HYPERV_NET_H */
1726