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