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 #include <linux/jhash.h>
19
20 /* RSS related */
21 #define OID_GEN_RECEIVE_SCALE_CAPABILITIES 0x00010203 /* query only */
22 #define OID_GEN_RECEIVE_SCALE_PARAMETERS 0x00010204 /* query and set */
23
24 #define NDIS_OBJECT_TYPE_RSS_CAPABILITIES 0x88
25 #define NDIS_OBJECT_TYPE_RSS_PARAMETERS 0x89
26 #define NDIS_OBJECT_TYPE_OFFLOAD 0xa7
27
28 #define NDIS_RECEIVE_SCALE_CAPABILITIES_REVISION_2 2
29 #define NDIS_RECEIVE_SCALE_PARAMETERS_REVISION_2 2
30
31 struct ndis_obj_header {
32 u8 type;
33 u8 rev;
34 u16 size;
35 } __packed;
36
37 /* ndis_recv_scale_cap/cap_flag */
38 #define NDIS_RSS_CAPS_MESSAGE_SIGNALED_INTERRUPTS 0x01000000
39 #define NDIS_RSS_CAPS_CLASSIFICATION_AT_ISR 0x02000000
40 #define NDIS_RSS_CAPS_CLASSIFICATION_AT_DPC 0x04000000
41 #define NDIS_RSS_CAPS_USING_MSI_X 0x08000000
42 #define NDIS_RSS_CAPS_RSS_AVAILABLE_ON_PORTS 0x10000000
43 #define NDIS_RSS_CAPS_SUPPORTS_MSI_X 0x20000000
44 #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV4 0x00000100
45 #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV6 0x00000200
46 #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV6_EX 0x00000400
47
48 struct ndis_recv_scale_cap { /* NDIS_RECEIVE_SCALE_CAPABILITIES */
49 struct ndis_obj_header hdr;
50 u32 cap_flag;
51 u32 num_int_msg;
52 u32 num_recv_que;
53 u16 num_indirect_tabent;
54 } __packed;
55
56
57 /* ndis_recv_scale_param flags */
58 #define NDIS_RSS_PARAM_FLAG_BASE_CPU_UNCHANGED 0x0001
59 #define NDIS_RSS_PARAM_FLAG_HASH_INFO_UNCHANGED 0x0002
60 #define NDIS_RSS_PARAM_FLAG_ITABLE_UNCHANGED 0x0004
61 #define NDIS_RSS_PARAM_FLAG_HASH_KEY_UNCHANGED 0x0008
62 #define NDIS_RSS_PARAM_FLAG_DISABLE_RSS 0x0010
63
64 /* Hash info bits */
65 #define NDIS_HASH_FUNC_TOEPLITZ 0x00000001
66 #define NDIS_HASH_IPV4 0x00000100
67 #define NDIS_HASH_TCP_IPV4 0x00000200
68 #define NDIS_HASH_IPV6 0x00000400
69 #define NDIS_HASH_IPV6_EX 0x00000800
70 #define NDIS_HASH_TCP_IPV6 0x00001000
71 #define NDIS_HASH_TCP_IPV6_EX 0x00002000
72
73 #define NDIS_RSS_INDIRECTION_TABLE_MAX_SIZE_REVISION_2 (128 * 4)
74 #define NDIS_RSS_HASH_SECRET_KEY_MAX_SIZE_REVISION_2 40
75
76 #define ITAB_NUM 128
77
78 struct ndis_recv_scale_param { /* NDIS_RECEIVE_SCALE_PARAMETERS */
79 struct ndis_obj_header hdr;
80
81 /* Qualifies the rest of the information */
82 u16 flag;
83
84 /* The base CPU number to do receive processing. not used */
85 u16 base_cpu_number;
86
87 /* This describes the hash function and type being enabled */
88 u32 hashinfo;
89
90 /* The size of indirection table array */
91 u16 indirect_tabsize;
92
93 /* The offset of the indirection table from the beginning of this
94 * structure
95 */
96 u32 indirect_taboffset;
97
98 /* The size of the hash secret key */
99 u16 hashkey_size;
100
101 /* The offset of the secret key from the beginning of this structure */
102 u32 hashkey_offset;
103
104 u32 processor_masks_offset;
105 u32 num_processor_masks;
106 u32 processor_masks_entry_size;
107 };
108
109 struct ndis_tcp_ip_checksum_info {
110 union {
111 struct {
112 u32 is_ipv4:1;
113 u32 is_ipv6:1;
114 u32 tcp_checksum:1;
115 u32 udp_checksum:1;
116 u32 ip_header_checksum:1;
117 u32 reserved:11;
118 u32 tcp_header_offset:10;
119 } transmit;
120 struct {
121 u32 tcp_checksum_failed:1;
122 u32 udp_checksum_failed:1;
123 u32 ip_checksum_failed:1;
124 u32 tcp_checksum_succeeded:1;
125 u32 udp_checksum_succeeded:1;
126 u32 ip_checksum_succeeded:1;
127 u32 loopback:1;
128 u32 tcp_checksum_value_invalid:1;
129 u32 ip_checksum_value_invalid:1;
130 } receive;
131 u32 value;
132 };
133 };
134
135 struct ndis_pkt_8021q_info {
136 union {
137 struct {
138 u32 pri:3; /* User Priority */
139 u32 cfi:1; /* Canonical Format ID */
140 u32 vlanid:12; /* VLAN ID */
141 u32 reserved:16;
142 };
143 u32 value;
144 };
145 };
146
147 /*
148 * Represent netvsc packet which contains 1 RNDIS and 1 ethernet frame
149 * within the RNDIS
150 *
151 * The size of this structure is less than 48 bytes and we can now
152 * place this structure in the skb->cb field.
153 */
154 struct hv_netvsc_packet {
155 /* Bookkeeping stuff */
156 u8 cp_partial; /* partial copy into send buffer */
157
158 u8 rmsg_size; /* RNDIS header and PPI size */
159 u8 rmsg_pgcnt; /* page count of RNDIS header and PPI */
160 u8 page_buf_cnt;
161
162 u16 q_idx;
163 u16 total_packets;
164
165 u32 total_bytes;
166 u32 send_buf_index;
167 u32 total_data_buflen;
168 struct hv_dma_range *dma_range;
169 };
170
171 #define NETVSC_HASH_KEYLEN 40
172
173 struct netvsc_device_info {
174 unsigned char mac_adr[ETH_ALEN];
175 u32 num_chn;
176 u32 send_sections;
177 u32 recv_sections;
178 u32 send_section_size;
179 u32 recv_section_size;
180
181 struct bpf_prog *bprog;
182
183 u8 rss_key[NETVSC_HASH_KEYLEN];
184 };
185
186 enum rndis_device_state {
187 RNDIS_DEV_UNINITIALIZED = 0,
188 RNDIS_DEV_INITIALIZING,
189 RNDIS_DEV_INITIALIZED,
190 RNDIS_DEV_DATAINITIALIZED,
191 };
192
193 struct rndis_device {
194 struct net_device *ndev;
195
196 enum rndis_device_state state;
197
198 atomic_t new_req_id;
199
200 spinlock_t request_lock;
201 struct list_head req_list;
202
203 struct work_struct mcast_work;
204 u32 filter;
205
206 bool link_state; /* 0 - link up, 1 - link down */
207
208 u8 hw_mac_adr[ETH_ALEN];
209 u8 rss_key[NETVSC_HASH_KEYLEN];
210 };
211
212
213 /* Interface */
214 struct rndis_message;
215 struct ndis_offload_params;
216 struct netvsc_device;
217 struct netvsc_channel;
218 struct net_device_context;
219
220 extern u32 netvsc_ring_bytes;
221
222 struct netvsc_device *netvsc_device_add(struct hv_device *device,
223 const struct netvsc_device_info *info);
224 int netvsc_alloc_recv_comp_ring(struct netvsc_device *net_device, u32 q_idx);
225 void netvsc_device_remove(struct hv_device *device);
226 int netvsc_send(struct net_device *net,
227 struct hv_netvsc_packet *packet,
228 struct rndis_message *rndis_msg,
229 struct hv_page_buffer *page_buffer,
230 struct sk_buff *skb,
231 bool xdp_tx);
232 void netvsc_linkstatus_callback(struct net_device *net,
233 struct rndis_message *resp,
234 void *data, u32 data_buflen);
235 int netvsc_recv_callback(struct net_device *net,
236 struct netvsc_device *nvdev,
237 struct netvsc_channel *nvchan);
238 void netvsc_channel_cb(void *context);
239 int netvsc_poll(struct napi_struct *napi, int budget);
240
241 void netvsc_xdp_xmit(struct sk_buff *skb, struct net_device *ndev);
242 u32 netvsc_run_xdp(struct net_device *ndev, struct netvsc_channel *nvchan,
243 struct xdp_buff *xdp);
244 unsigned int netvsc_xdp_fraglen(unsigned int len);
245 struct bpf_prog *netvsc_xdp_get(struct netvsc_device *nvdev);
246 int netvsc_xdp_set(struct net_device *dev, struct bpf_prog *prog,
247 struct netlink_ext_ack *extack,
248 struct netvsc_device *nvdev);
249 int netvsc_vf_setxdp(struct net_device *vf_netdev, struct bpf_prog *prog);
250 int netvsc_bpf(struct net_device *dev, struct netdev_bpf *bpf);
251 int netvsc_ndoxdp_xmit(struct net_device *ndev, int n,
252 struct xdp_frame **frames, u32 flags);
253
254 int rndis_set_subchannel(struct net_device *ndev,
255 struct netvsc_device *nvdev,
256 struct netvsc_device_info *dev_info);
257 int rndis_filter_open(struct netvsc_device *nvdev);
258 int rndis_filter_close(struct netvsc_device *nvdev);
259 struct netvsc_device *rndis_filter_device_add(struct hv_device *dev,
260 struct netvsc_device_info *info);
261 void rndis_filter_update(struct netvsc_device *nvdev);
262 void rndis_filter_device_remove(struct hv_device *dev,
263 struct netvsc_device *nvdev);
264 int rndis_filter_set_rss_param(struct rndis_device *rdev,
265 const u8 *key);
266 int rndis_filter_set_offload_params(struct net_device *ndev,
267 struct netvsc_device *nvdev,
268 struct ndis_offload_params *req_offloads);
269 int rndis_filter_receive(struct net_device *ndev,
270 struct netvsc_device *net_dev,
271 struct netvsc_channel *nvchan,
272 void *data, u32 buflen);
273
274 int rndis_filter_set_device_mac(struct netvsc_device *ndev,
275 const char *mac);
276
277 int netvsc_switch_datapath(struct net_device *nv_dev, bool vf);
278
279 #define NVSP_INVALID_PROTOCOL_VERSION ((u32)0xFFFFFFFF)
280
281 #define NVSP_PROTOCOL_VERSION_1 2
282 #define NVSP_PROTOCOL_VERSION_2 0x30002
283 #define NVSP_PROTOCOL_VERSION_4 0x40000
284 #define NVSP_PROTOCOL_VERSION_5 0x50000
285 #define NVSP_PROTOCOL_VERSION_6 0x60000
286 #define NVSP_PROTOCOL_VERSION_61 0x60001
287
288 enum {
289 NVSP_MSG_TYPE_NONE = 0,
290
291 /* Init Messages */
292 NVSP_MSG_TYPE_INIT = 1,
293 NVSP_MSG_TYPE_INIT_COMPLETE = 2,
294
295 NVSP_VERSION_MSG_START = 100,
296
297 /* Version 1 Messages */
298 NVSP_MSG1_TYPE_SEND_NDIS_VER = NVSP_VERSION_MSG_START,
299
300 NVSP_MSG1_TYPE_SEND_RECV_BUF,
301 NVSP_MSG1_TYPE_SEND_RECV_BUF_COMPLETE,
302 NVSP_MSG1_TYPE_REVOKE_RECV_BUF,
303
304 NVSP_MSG1_TYPE_SEND_SEND_BUF,
305 NVSP_MSG1_TYPE_SEND_SEND_BUF_COMPLETE,
306 NVSP_MSG1_TYPE_REVOKE_SEND_BUF,
307
308 NVSP_MSG1_TYPE_SEND_RNDIS_PKT,
309 NVSP_MSG1_TYPE_SEND_RNDIS_PKT_COMPLETE,
310
311 /* Version 2 messages */
312 NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF,
313 NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF_COMP,
314 NVSP_MSG2_TYPE_REVOKE_CHIMNEY_DELEGATED_BUF,
315
316 NVSP_MSG2_TYPE_RESUME_CHIMNEY_RX_INDICATION,
317
318 NVSP_MSG2_TYPE_TERMINATE_CHIMNEY,
319 NVSP_MSG2_TYPE_TERMINATE_CHIMNEY_COMP,
320
321 NVSP_MSG2_TYPE_INDICATE_CHIMNEY_EVENT,
322
323 NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT,
324 NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT_COMP,
325
326 NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ,
327 NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ_COMP,
328
329 NVSP_MSG2_TYPE_ALLOC_RXBUF,
330 NVSP_MSG2_TYPE_ALLOC_RXBUF_COMP,
331
332 NVSP_MSG2_TYPE_FREE_RXBUF,
333
334 NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT,
335 NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT_COMP,
336
337 NVSP_MSG2_TYPE_SEND_NDIS_CONFIG,
338
339 NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE,
340 NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP,
341
342 NVSP_MSG2_MAX = NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP,
343
344 /* Version 4 messages */
345 NVSP_MSG4_TYPE_SEND_VF_ASSOCIATION,
346 NVSP_MSG4_TYPE_SWITCH_DATA_PATH,
347 NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED,
348
349 NVSP_MSG4_MAX = NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED,
350
351 /* Version 5 messages */
352 NVSP_MSG5_TYPE_OID_QUERY_EX,
353 NVSP_MSG5_TYPE_OID_QUERY_EX_COMP,
354 NVSP_MSG5_TYPE_SUBCHANNEL,
355 NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE,
356
357 NVSP_MSG5_MAX = NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE,
358
359 /* Version 6 messages */
360 NVSP_MSG6_TYPE_PD_API,
361 NVSP_MSG6_TYPE_PD_POST_BATCH,
362
363 NVSP_MSG6_MAX = NVSP_MSG6_TYPE_PD_POST_BATCH
364 };
365
366 enum {
367 NVSP_STAT_NONE = 0,
368 NVSP_STAT_SUCCESS,
369 NVSP_STAT_FAIL,
370 NVSP_STAT_PROTOCOL_TOO_NEW,
371 NVSP_STAT_PROTOCOL_TOO_OLD,
372 NVSP_STAT_INVALID_RNDIS_PKT,
373 NVSP_STAT_BUSY,
374 NVSP_STAT_PROTOCOL_UNSUPPORTED,
375 NVSP_STAT_MAX,
376 };
377
378 struct nvsp_message_header {
379 u32 msg_type;
380 };
381
382 /* Init Messages */
383
384 /*
385 * This message is used by the VSC to initialize the channel after the channels
386 * has been opened. This message should never include anything other then
387 * versioning (i.e. this message will be the same for ever).
388 */
389 struct nvsp_message_init {
390 u32 min_protocol_ver;
391 u32 max_protocol_ver;
392 } __packed;
393
394 /*
395 * This message is used by the VSP to complete the initialization of the
396 * channel. This message should never include anything other then versioning
397 * (i.e. this message will be the same for ever).
398 */
399 struct nvsp_message_init_complete {
400 u32 negotiated_protocol_ver;
401 u32 max_mdl_chain_len;
402 u32 status;
403 } __packed;
404
405 union nvsp_message_init_uber {
406 struct nvsp_message_init init;
407 struct nvsp_message_init_complete init_complete;
408 } __packed;
409
410 /* Version 1 Messages */
411
412 /*
413 * This message is used by the VSC to send the NDIS version to the VSP. The VSP
414 * can use this information when handling OIDs sent by the VSC.
415 */
416 struct nvsp_1_message_send_ndis_version {
417 u32 ndis_major_ver;
418 u32 ndis_minor_ver;
419 } __packed;
420
421 /*
422 * This message is used by the VSC to send a receive buffer to the VSP. The VSP
423 * can then use the receive buffer to send data to the VSC.
424 */
425 struct nvsp_1_message_send_receive_buffer {
426 u32 gpadl_handle;
427 u16 id;
428 } __packed;
429
430 struct nvsp_1_receive_buffer_section {
431 u32 offset;
432 u32 sub_alloc_size;
433 u32 num_sub_allocs;
434 u32 end_offset;
435 } __packed;
436
437 /*
438 * This message is used by the VSP to acknowledge a receive buffer send by the
439 * VSC. This message must be sent by the VSP before the VSP uses the receive
440 * buffer.
441 */
442 struct nvsp_1_message_send_receive_buffer_complete {
443 u32 status;
444 u32 num_sections;
445
446 /*
447 * The receive buffer is split into two parts, a large suballocation
448 * section and a small suballocation section. These sections are then
449 * suballocated by a certain size.
450 */
451
452 /*
453 * For example, the following break up of the receive buffer has 6
454 * large suballocations and 10 small suballocations.
455 */
456
457 /*
458 * | Large Section | | Small Section |
459 * ------------------------------------------------------------
460 * | | | | | | | | | | | | | | | | | |
461 * | |
462 * LargeOffset SmallOffset
463 */
464
465 struct nvsp_1_receive_buffer_section sections[1];
466 } __packed;
467
468 /*
469 * This message is sent by the VSC to revoke the receive buffer. After the VSP
470 * completes this transaction, the vsp should never use the receive buffer
471 * again.
472 */
473 struct nvsp_1_message_revoke_receive_buffer {
474 u16 id;
475 };
476
477 /*
478 * This message is used by the VSC to send a send buffer to the VSP. The VSC
479 * can then use the send buffer to send data to the VSP.
480 */
481 struct nvsp_1_message_send_send_buffer {
482 u32 gpadl_handle;
483 u16 id;
484 } __packed;
485
486 /*
487 * This message is used by the VSP to acknowledge a send buffer sent by the
488 * VSC. This message must be sent by the VSP before the VSP uses the sent
489 * buffer.
490 */
491 struct nvsp_1_message_send_send_buffer_complete {
492 u32 status;
493
494 /*
495 * The VSC gets to choose the size of the send buffer and the VSP gets
496 * to choose the sections size of the buffer. This was done to enable
497 * dynamic reconfigurations when the cost of GPA-direct buffers
498 * decreases.
499 */
500 u32 section_size;
501 } __packed;
502
503 /*
504 * This message is sent by the VSC to revoke the send buffer. After the VSP
505 * completes this transaction, the vsp should never use the send buffer again.
506 */
507 struct nvsp_1_message_revoke_send_buffer {
508 u16 id;
509 };
510
511 /*
512 * This message is used by both the VSP and the VSC to send a RNDIS message to
513 * the opposite channel endpoint.
514 */
515 struct nvsp_1_message_send_rndis_packet {
516 /*
517 * This field is specified by RNDIS. They assume there's two different
518 * channels of communication. However, the Network VSP only has one.
519 * Therefore, the channel travels with the RNDIS packet.
520 */
521 u32 channel_type;
522
523 /*
524 * This field is used to send part or all of the data through a send
525 * buffer. This values specifies an index into the send buffer. If the
526 * index is 0xFFFFFFFF, then the send buffer is not being used and all
527 * of the data was sent through other VMBus mechanisms.
528 */
529 u32 send_buf_section_index;
530 u32 send_buf_section_size;
531 } __packed;
532
533 /*
534 * This message is used by both the VSP and the VSC to complete a RNDIS message
535 * to the opposite channel endpoint. At this point, the initiator of this
536 * message cannot use any resources associated with the original RNDIS packet.
537 */
538 struct nvsp_1_message_send_rndis_packet_complete {
539 u32 status;
540 };
541
542 union nvsp_1_message_uber {
543 struct nvsp_1_message_send_ndis_version send_ndis_ver;
544
545 struct nvsp_1_message_send_receive_buffer send_recv_buf;
546 struct nvsp_1_message_send_receive_buffer_complete
547 send_recv_buf_complete;
548 struct nvsp_1_message_revoke_receive_buffer revoke_recv_buf;
549
550 struct nvsp_1_message_send_send_buffer send_send_buf;
551 struct nvsp_1_message_send_send_buffer_complete send_send_buf_complete;
552 struct nvsp_1_message_revoke_send_buffer revoke_send_buf;
553
554 struct nvsp_1_message_send_rndis_packet send_rndis_pkt;
555 struct nvsp_1_message_send_rndis_packet_complete
556 send_rndis_pkt_complete;
557 } __packed;
558
559
560 /*
561 * Network VSP protocol version 2 messages:
562 */
563 struct nvsp_2_vsc_capability {
564 union {
565 u64 data;
566 struct {
567 u64 vmq:1;
568 u64 chimney:1;
569 u64 sriov:1;
570 u64 ieee8021q:1;
571 u64 correlation_id:1;
572 u64 teaming:1;
573 u64 vsubnetid:1;
574 u64 rsc:1;
575 };
576 };
577 } __packed;
578
579 struct nvsp_2_send_ndis_config {
580 u32 mtu;
581 u32 reserved;
582 struct nvsp_2_vsc_capability capability;
583 } __packed;
584
585 /* Allocate receive buffer */
586 struct nvsp_2_alloc_rxbuf {
587 /* Allocation ID to match the allocation request and response */
588 u32 alloc_id;
589
590 /* Length of the VM shared memory receive buffer that needs to
591 * be allocated
592 */
593 u32 len;
594 } __packed;
595
596 /* Allocate receive buffer complete */
597 struct nvsp_2_alloc_rxbuf_comp {
598 /* The NDIS_STATUS code for buffer allocation */
599 u32 status;
600
601 u32 alloc_id;
602
603 /* GPADL handle for the allocated receive buffer */
604 u32 gpadl_handle;
605
606 /* Receive buffer ID */
607 u64 recv_buf_id;
608 } __packed;
609
610 struct nvsp_2_free_rxbuf {
611 u64 recv_buf_id;
612 } __packed;
613
614 union nvsp_2_message_uber {
615 struct nvsp_2_send_ndis_config send_ndis_config;
616 struct nvsp_2_alloc_rxbuf alloc_rxbuf;
617 struct nvsp_2_alloc_rxbuf_comp alloc_rxbuf_comp;
618 struct nvsp_2_free_rxbuf free_rxbuf;
619 } __packed;
620
621 struct nvsp_4_send_vf_association {
622 /* 1: allocated, serial number is valid. 0: not allocated */
623 u32 allocated;
624
625 /* Serial number of the VF to team with */
626 u32 serial;
627 } __packed;
628
629 enum nvsp_vm_datapath {
630 NVSP_DATAPATH_SYNTHETIC = 0,
631 NVSP_DATAPATH_VF,
632 NVSP_DATAPATH_MAX
633 };
634
635 struct nvsp_4_sw_datapath {
636 u32 active_datapath; /* active data path in VM */
637 } __packed;
638
639 union nvsp_4_message_uber {
640 struct nvsp_4_send_vf_association vf_assoc;
641 struct nvsp_4_sw_datapath active_dp;
642 } __packed;
643
644 enum nvsp_subchannel_operation {
645 NVSP_SUBCHANNEL_NONE = 0,
646 NVSP_SUBCHANNEL_ALLOCATE,
647 NVSP_SUBCHANNEL_MAX
648 };
649
650 struct nvsp_5_subchannel_request {
651 u32 op;
652 u32 num_subchannels;
653 } __packed;
654
655 struct nvsp_5_subchannel_complete {
656 u32 status;
657 u32 num_subchannels; /* Actual number of subchannels allocated */
658 } __packed;
659
660 struct nvsp_5_send_indirect_table {
661 /* The number of entries in the send indirection table */
662 u32 count;
663
664 /* The offset of the send indirection table from the beginning of
665 * struct nvsp_message.
666 * The send indirection table tells which channel to put the send
667 * traffic on. Each entry is a channel number.
668 */
669 u32 offset;
670 } __packed;
671
672 union nvsp_5_message_uber {
673 struct nvsp_5_subchannel_request subchn_req;
674 struct nvsp_5_subchannel_complete subchn_comp;
675 struct nvsp_5_send_indirect_table send_table;
676 } __packed;
677
678 enum nvsp_6_pd_api_op {
679 PD_API_OP_CONFIG = 1,
680 PD_API_OP_SW_DATAPATH, /* Switch Datapath */
681 PD_API_OP_OPEN_PROVIDER,
682 PD_API_OP_CLOSE_PROVIDER,
683 PD_API_OP_CREATE_QUEUE,
684 PD_API_OP_FLUSH_QUEUE,
685 PD_API_OP_FREE_QUEUE,
686 PD_API_OP_ALLOC_COM_BUF, /* Allocate Common Buffer */
687 PD_API_OP_FREE_COM_BUF, /* Free Common Buffer */
688 PD_API_OP_MAX
689 };
690
691 struct grp_affinity {
692 u64 mask;
693 u16 grp;
694 u16 reserved[3];
695 } __packed;
696
697 struct nvsp_6_pd_api_req {
698 u32 op;
699
700 union {
701 /* MMIO information is sent from the VM to VSP */
702 struct __packed {
703 u64 mmio_pa; /* MMIO Physical Address */
704 u32 mmio_len;
705
706 /* Number of PD queues a VM can support */
707 u16 num_subchn;
708 } config;
709
710 /* Switch Datapath */
711 struct __packed {
712 /* Host Datapath Is PacketDirect */
713 u8 host_dpath_is_pd;
714
715 /* Guest PacketDirect Is Enabled */
716 u8 guest_pd_enabled;
717 } sw_dpath;
718
719 /* Open Provider*/
720 struct __packed {
721 u32 prov_id; /* Provider id */
722 u32 flag;
723 } open_prov;
724
725 /* Close Provider */
726 struct __packed {
727 u32 prov_id;
728 } cls_prov;
729
730 /* Create Queue*/
731 struct __packed {
732 u32 prov_id;
733 u16 q_id;
734 u16 q_size;
735 u8 is_recv_q;
736 u8 is_rss_q;
737 u32 recv_data_len;
738 struct grp_affinity affy;
739 } cr_q;
740
741 /* Delete Queue*/
742 struct __packed {
743 u32 prov_id;
744 u16 q_id;
745 } del_q;
746
747 /* Flush Queue */
748 struct __packed {
749 u32 prov_id;
750 u16 q_id;
751 } flush_q;
752
753 /* Allocate Common Buffer */
754 struct __packed {
755 u32 len;
756 u32 pf_node; /* Preferred Node */
757 u16 region_id;
758 } alloc_com_buf;
759
760 /* Free Common Buffer */
761 struct __packed {
762 u32 len;
763 u64 pa; /* Physical Address */
764 u32 pf_node; /* Preferred Node */
765 u16 region_id;
766 u8 cache_type;
767 } free_com_buf;
768 } __packed;
769 } __packed;
770
771 struct nvsp_6_pd_api_comp {
772 u32 op;
773 u32 status;
774
775 union {
776 struct __packed {
777 /* actual number of PD queues allocated to the VM */
778 u16 num_pd_q;
779
780 /* Num Receive Rss PD Queues */
781 u8 num_rss_q;
782
783 u8 is_supported; /* Is supported by VSP */
784 u8 is_enabled; /* Is enabled by VSP */
785 } config;
786
787 /* Open Provider */
788 struct __packed {
789 u32 prov_id;
790 } open_prov;
791
792 /* Create Queue */
793 struct __packed {
794 u32 prov_id;
795 u16 q_id;
796 u16 q_size;
797 u32 recv_data_len;
798 struct grp_affinity affy;
799 } cr_q;
800
801 /* Allocate Common Buffer */
802 struct __packed {
803 u64 pa; /* Physical Address */
804 u32 len;
805 u32 pf_node; /* Preferred Node */
806 u16 region_id;
807 u8 cache_type;
808 } alloc_com_buf;
809 } __packed;
810 } __packed;
811
812 struct nvsp_6_pd_buf {
813 u32 region_offset;
814 u16 region_id;
815 u16 is_partial:1;
816 u16 reserved:15;
817 } __packed;
818
819 struct nvsp_6_pd_batch_msg {
820 struct nvsp_message_header hdr;
821 u16 count;
822 u16 guest2host:1;
823 u16 is_recv:1;
824 u16 reserved:14;
825 struct nvsp_6_pd_buf pd_buf[0];
826 } __packed;
827
828 union nvsp_6_message_uber {
829 struct nvsp_6_pd_api_req pd_req;
830 struct nvsp_6_pd_api_comp pd_comp;
831 } __packed;
832
833 union nvsp_all_messages {
834 union nvsp_message_init_uber init_msg;
835 union nvsp_1_message_uber v1_msg;
836 union nvsp_2_message_uber v2_msg;
837 union nvsp_4_message_uber v4_msg;
838 union nvsp_5_message_uber v5_msg;
839 union nvsp_6_message_uber v6_msg;
840 } __packed;
841
842 /* ALL Messages */
843 struct nvsp_message {
844 struct nvsp_message_header hdr;
845 union nvsp_all_messages msg;
846 } __packed;
847
848
849 #define NETVSC_MTU 65535
850 #define NETVSC_MTU_MIN ETH_MIN_MTU
851
852 /* Max buffer sizes allowed by a host */
853 #define NETVSC_RECEIVE_BUFFER_SIZE (1024 * 1024 * 31) /* 31MB */
854 #define NETVSC_RECEIVE_BUFFER_SIZE_LEGACY (1024 * 1024 * 15) /* 15MB */
855 #define NETVSC_RECEIVE_BUFFER_DEFAULT (1024 * 1024 * 16)
856
857 #define NETVSC_SEND_BUFFER_SIZE (1024 * 1024 * 15) /* 15MB */
858 #define NETVSC_SEND_BUFFER_DEFAULT (1024 * 1024)
859
860 #define NETVSC_INVALID_INDEX -1
861
862 #define NETVSC_SEND_SECTION_SIZE 6144
863 #define NETVSC_RECV_SECTION_SIZE 1728
864
865 /* Default size of TX buf: 1MB, RX buf: 16MB */
866 #define NETVSC_MIN_TX_SECTIONS 10
867 #define NETVSC_DEFAULT_TX (NETVSC_SEND_BUFFER_DEFAULT \
868 / NETVSC_SEND_SECTION_SIZE)
869 #define NETVSC_MIN_RX_SECTIONS 10
870 #define NETVSC_DEFAULT_RX (NETVSC_RECEIVE_BUFFER_DEFAULT \
871 / NETVSC_RECV_SECTION_SIZE)
872
873 #define NETVSC_RECEIVE_BUFFER_ID 0xcafe
874 #define NETVSC_SEND_BUFFER_ID 0
875
876 #define NETVSC_SUPPORTED_HW_FEATURES (NETIF_F_RXCSUM | NETIF_F_IP_CSUM | \
877 NETIF_F_TSO | NETIF_F_IPV6_CSUM | \
878 NETIF_F_TSO6 | NETIF_F_LRO | \
879 NETIF_F_SG | NETIF_F_RXHASH)
880
881 #define VRSS_SEND_TAB_SIZE 16 /* must be power of 2 */
882 #define VRSS_CHANNEL_MAX 64
883 #define VRSS_CHANNEL_DEFAULT 8
884
885 #define RNDIS_MAX_PKT_DEFAULT 8
886 #define RNDIS_PKT_ALIGN_DEFAULT 8
887
888 #define NETVSC_XDP_HDRM 256
889
890 #define NETVSC_MIN_OUT_MSG_SIZE (sizeof(struct vmpacket_descriptor) + \
891 sizeof(struct nvsp_message))
892 #define NETVSC_MIN_IN_MSG_SIZE sizeof(struct vmpacket_descriptor)
893
894 /* Estimated requestor size:
895 * out_ring_size/min_out_msg_size + in_ring_size/min_in_msg_size
896 */
netvsc_rqstor_size(unsigned long ringbytes)897 static inline u32 netvsc_rqstor_size(unsigned long ringbytes)
898 {
899 return ringbytes / NETVSC_MIN_OUT_MSG_SIZE +
900 ringbytes / NETVSC_MIN_IN_MSG_SIZE;
901 }
902
903 /* XFER PAGE packets can specify a maximum of 375 ranges for NDIS >= 6.0
904 * and a maximum of 64 ranges for NDIS < 6.0 with no RSC; with RSC, this
905 * limit is raised to 562 (= NVSP_RSC_MAX).
906 */
907 #define NETVSC_MAX_XFER_PAGE_RANGES NVSP_RSC_MAX
908 #define NETVSC_XFER_HEADER_SIZE(rng_cnt) \
909 (offsetof(struct vmtransfer_page_packet_header, ranges) + \
910 (rng_cnt) * sizeof(struct vmtransfer_page_range))
911 #define NETVSC_MAX_PKT_SIZE (NETVSC_XFER_HEADER_SIZE(NETVSC_MAX_XFER_PAGE_RANGES) + \
912 sizeof(struct nvsp_message) + (sizeof(u32) * VRSS_SEND_TAB_SIZE))
913
914 struct multi_send_data {
915 struct sk_buff *skb; /* skb containing the pkt */
916 struct hv_netvsc_packet *pkt; /* netvsc pkt pending */
917 u32 count; /* counter of batched packets */
918 };
919
920 struct recv_comp_data {
921 u64 tid; /* transaction id */
922 u32 status;
923 };
924
925 struct multi_recv_comp {
926 struct recv_comp_data *slots;
927 u32 first; /* first data entry */
928 u32 next; /* next entry for writing */
929 };
930
931 #define NVSP_RSC_MAX 562 /* Max #RSC frags in a vmbus xfer page pkt */
932
933 struct nvsc_rsc {
934 struct ndis_pkt_8021q_info vlan;
935 struct ndis_tcp_ip_checksum_info csum_info;
936 u32 hash_info;
937 u8 ppi_flags; /* valid/present bits for the above PPIs */
938 u8 is_last; /* last RNDIS msg in a vmtransfer_page */
939 u32 cnt; /* #fragments in an RSC packet */
940 u32 pktlen; /* Full packet length */
941 void *data[NVSP_RSC_MAX];
942 u32 len[NVSP_RSC_MAX];
943 };
944
945 #define NVSC_RSC_VLAN BIT(0) /* valid/present bit for 'vlan' */
946 #define NVSC_RSC_CSUM_INFO BIT(1) /* valid/present bit for 'csum_info' */
947 #define NVSC_RSC_HASH_INFO BIT(2) /* valid/present bit for 'hash_info' */
948
949 struct netvsc_stats_tx {
950 u64 packets;
951 u64 bytes;
952 u64 xdp_xmit;
953 struct u64_stats_sync syncp;
954 };
955
956 struct netvsc_stats_rx {
957 u64 packets;
958 u64 bytes;
959 u64 broadcast;
960 u64 multicast;
961 u64 xdp_drop;
962 u64 xdp_redirect;
963 u64 xdp_tx;
964 struct u64_stats_sync syncp;
965 };
966
967 struct netvsc_ethtool_stats {
968 unsigned long tx_scattered;
969 unsigned long tx_no_memory;
970 unsigned long tx_no_space;
971 unsigned long tx_too_big;
972 unsigned long tx_busy;
973 unsigned long tx_send_full;
974 unsigned long rx_comp_busy;
975 unsigned long rx_no_memory;
976 unsigned long stop_queue;
977 unsigned long wake_queue;
978 unsigned long vlan_error;
979 };
980
981 struct netvsc_ethtool_pcpu_stats {
982 u64 rx_packets;
983 u64 rx_bytes;
984 u64 tx_packets;
985 u64 tx_bytes;
986 u64 vf_rx_packets;
987 u64 vf_rx_bytes;
988 u64 vf_tx_packets;
989 u64 vf_tx_bytes;
990 };
991
992 struct netvsc_vf_pcpu_stats {
993 u64 rx_packets;
994 u64 rx_bytes;
995 u64 tx_packets;
996 u64 tx_bytes;
997 struct u64_stats_sync syncp;
998 u32 tx_dropped;
999 };
1000
1001 struct netvsc_reconfig {
1002 struct list_head list;
1003 u32 event;
1004 };
1005
1006 /* L4 hash bits for different protocols */
1007 #define HV_TCP4_L4HASH 1
1008 #define HV_TCP6_L4HASH 2
1009 #define HV_UDP4_L4HASH 4
1010 #define HV_UDP6_L4HASH 8
1011 #define HV_DEFAULT_L4HASH (HV_TCP4_L4HASH | HV_TCP6_L4HASH | HV_UDP4_L4HASH | \
1012 HV_UDP6_L4HASH)
1013
1014 /* The context of the netvsc device */
1015 struct net_device_context {
1016 /* point back to our device context */
1017 struct hv_device *device_ctx;
1018 /* netvsc_device */
1019 struct netvsc_device __rcu *nvdev;
1020 /* list of netvsc net_devices */
1021 struct list_head list;
1022 /* reconfigure work */
1023 struct delayed_work dwork;
1024 /* last reconfig time */
1025 unsigned long last_reconfig;
1026 /* reconfig events */
1027 struct list_head reconfig_events;
1028 /* list protection */
1029 spinlock_t lock;
1030
1031 u32 msg_enable; /* debug level */
1032
1033 u32 tx_checksum_mask;
1034
1035 u32 tx_table[VRSS_SEND_TAB_SIZE];
1036
1037 u16 rx_table[ITAB_NUM];
1038
1039 /* Ethtool settings */
1040 u8 duplex;
1041 u32 speed;
1042 u32 l4_hash; /* L4 hash settings */
1043 struct netvsc_ethtool_stats eth_stats;
1044
1045 /* State to manage the associated VF interface. */
1046 struct net_device __rcu *vf_netdev;
1047 struct netvsc_vf_pcpu_stats __percpu *vf_stats;
1048 struct delayed_work vf_takeover;
1049
1050 /* 1: allocated, serial number is valid. 0: not allocated */
1051 u32 vf_alloc;
1052 /* Serial number of the VF to team with */
1053 u32 vf_serial;
1054
1055 /* Is the current data path through the VF NIC? */
1056 bool data_path_is_vf;
1057
1058 /* Used to temporarily save the config info across hibernation */
1059 struct netvsc_device_info *saved_netvsc_dev_info;
1060 };
1061
1062 /* Azure hosts don't support non-TCP port numbers in hashing for fragmented
1063 * packets. We can use ethtool to change UDP hash level when necessary.
1064 */
netvsc_get_hash(struct sk_buff * skb,const struct net_device_context * ndc)1065 static inline u32 netvsc_get_hash(struct sk_buff *skb,
1066 const struct net_device_context *ndc)
1067 {
1068 struct flow_keys flow;
1069 u32 hash, pkt_proto = 0;
1070 static u32 hashrnd __read_mostly;
1071
1072 net_get_random_once(&hashrnd, sizeof(hashrnd));
1073
1074 if (!skb_flow_dissect_flow_keys(skb, &flow, 0))
1075 return 0;
1076
1077 switch (flow.basic.ip_proto) {
1078 case IPPROTO_TCP:
1079 if (flow.basic.n_proto == htons(ETH_P_IP))
1080 pkt_proto = HV_TCP4_L4HASH;
1081 else if (flow.basic.n_proto == htons(ETH_P_IPV6))
1082 pkt_proto = HV_TCP6_L4HASH;
1083
1084 break;
1085
1086 case IPPROTO_UDP:
1087 if (flow.basic.n_proto == htons(ETH_P_IP))
1088 pkt_proto = HV_UDP4_L4HASH;
1089 else if (flow.basic.n_proto == htons(ETH_P_IPV6))
1090 pkt_proto = HV_UDP6_L4HASH;
1091
1092 break;
1093 }
1094
1095 if (pkt_proto & ndc->l4_hash) {
1096 return skb_get_hash(skb);
1097 } else {
1098 if (flow.basic.n_proto == htons(ETH_P_IP))
1099 hash = jhash2((u32 *)&flow.addrs.v4addrs, 2, hashrnd);
1100 else if (flow.basic.n_proto == htons(ETH_P_IPV6))
1101 hash = jhash2((u32 *)&flow.addrs.v6addrs, 8, hashrnd);
1102 else
1103 return 0;
1104
1105 __skb_set_sw_hash(skb, hash, false);
1106 }
1107
1108 return hash;
1109 }
1110
1111 /* Per channel data */
1112 struct netvsc_channel {
1113 struct vmbus_channel *channel;
1114 struct netvsc_device *net_device;
1115 void *recv_buf; /* buffer to copy packets out from the receive buffer */
1116 const struct vmpacket_descriptor *desc;
1117 struct napi_struct napi;
1118 struct multi_send_data msd;
1119 struct multi_recv_comp mrc;
1120 atomic_t queue_sends;
1121 struct nvsc_rsc rsc;
1122
1123 struct bpf_prog __rcu *bpf_prog;
1124 struct xdp_rxq_info xdp_rxq;
1125 bool xdp_flush;
1126
1127 struct netvsc_stats_tx tx_stats;
1128 struct netvsc_stats_rx rx_stats;
1129 };
1130
1131 /* Per netvsc device */
1132 struct netvsc_device {
1133 u32 nvsp_version;
1134
1135 wait_queue_head_t wait_drain;
1136 bool destroy;
1137 bool tx_disable; /* if true, do not wake up queue again */
1138
1139 /* Receive buffer allocated by us but manages by NetVSP */
1140 void *recv_buf;
1141 void *recv_original_buf;
1142 u32 recv_buf_size; /* allocated bytes */
1143 struct vmbus_gpadl recv_buf_gpadl_handle;
1144 u32 recv_section_cnt;
1145 u32 recv_section_size;
1146 u32 recv_completion_cnt;
1147
1148 /* Send buffer allocated by us */
1149 void *send_buf;
1150 void *send_original_buf;
1151 u32 send_buf_size;
1152 struct vmbus_gpadl send_buf_gpadl_handle;
1153 u32 send_section_cnt;
1154 u32 send_section_size;
1155 unsigned long *send_section_map;
1156
1157 /* Used for NetVSP initialization protocol */
1158 struct completion channel_init_wait;
1159 struct nvsp_message channel_init_pkt;
1160
1161 struct nvsp_message revoke_packet;
1162
1163 u32 max_chn;
1164 u32 num_chn;
1165
1166 atomic_t open_chn;
1167 struct work_struct subchan_work;
1168 wait_queue_head_t subchan_open;
1169
1170 struct rndis_device *extension;
1171
1172 u32 max_pkt; /* max number of pkt in one send, e.g. 8 */
1173 u32 pkt_align; /* alignment bytes, e.g. 8 */
1174
1175 struct netvsc_channel chan_table[VRSS_CHANNEL_MAX];
1176
1177 struct rcu_head rcu;
1178 };
1179
1180 /* NdisInitialize message */
1181 struct rndis_initialize_request {
1182 u32 req_id;
1183 u32 major_ver;
1184 u32 minor_ver;
1185 u32 max_xfer_size;
1186 };
1187
1188 /* Response to NdisInitialize */
1189 struct rndis_initialize_complete {
1190 u32 req_id;
1191 u32 status;
1192 u32 major_ver;
1193 u32 minor_ver;
1194 u32 dev_flags;
1195 u32 medium;
1196 u32 max_pkt_per_msg;
1197 u32 max_xfer_size;
1198 u32 pkt_alignment_factor;
1199 u32 af_list_offset;
1200 u32 af_list_size;
1201 };
1202
1203 /* Call manager devices only: Information about an address family */
1204 /* supported by the device is appended to the response to NdisInitialize. */
1205 struct rndis_co_address_family {
1206 u32 address_family;
1207 u32 major_ver;
1208 u32 minor_ver;
1209 };
1210
1211 /* NdisHalt message */
1212 struct rndis_halt_request {
1213 u32 req_id;
1214 };
1215
1216 /* NdisQueryRequest message */
1217 struct rndis_query_request {
1218 u32 req_id;
1219 u32 oid;
1220 u32 info_buflen;
1221 u32 info_buf_offset;
1222 u32 dev_vc_handle;
1223 };
1224
1225 /* Response to NdisQueryRequest */
1226 struct rndis_query_complete {
1227 u32 req_id;
1228 u32 status;
1229 u32 info_buflen;
1230 u32 info_buf_offset;
1231 };
1232
1233 /* NdisSetRequest message */
1234 struct rndis_set_request {
1235 u32 req_id;
1236 u32 oid;
1237 u32 info_buflen;
1238 u32 info_buf_offset;
1239 u32 dev_vc_handle;
1240 u8 info_buf[];
1241 };
1242
1243 /* Response to NdisSetRequest */
1244 struct rndis_set_complete {
1245 u32 req_id;
1246 u32 status;
1247 };
1248
1249 /* NdisReset message */
1250 struct rndis_reset_request {
1251 u32 reserved;
1252 };
1253
1254 /* Response to NdisReset */
1255 struct rndis_reset_complete {
1256 u32 status;
1257 u32 addressing_reset;
1258 };
1259
1260 /* NdisMIndicateStatus message */
1261 struct rndis_indicate_status {
1262 u32 status;
1263 u32 status_buflen;
1264 u32 status_buf_offset;
1265 };
1266
1267 /* Diagnostic information passed as the status buffer in */
1268 /* struct rndis_indicate_status messages signifying error conditions. */
1269 struct rndis_diagnostic_info {
1270 u32 diag_status;
1271 u32 error_offset;
1272 };
1273
1274 /* NdisKeepAlive message */
1275 struct rndis_keepalive_request {
1276 u32 req_id;
1277 };
1278
1279 /* Response to NdisKeepAlive */
1280 struct rndis_keepalive_complete {
1281 u32 req_id;
1282 u32 status;
1283 };
1284
1285 /*
1286 * Data message. All Offset fields contain byte offsets from the beginning of
1287 * struct rndis_packet. All Length fields are in bytes. VcHandle is set
1288 * to 0 for connectionless data, otherwise it contains the VC handle.
1289 */
1290 struct rndis_packet {
1291 u32 data_offset;
1292 u32 data_len;
1293 u32 oob_data_offset;
1294 u32 oob_data_len;
1295 u32 num_oob_data_elements;
1296 u32 per_pkt_info_offset;
1297 u32 per_pkt_info_len;
1298 u32 vc_handle;
1299 u32 reserved;
1300 };
1301
1302 /* Optional Out of Band data associated with a Data message. */
1303 struct rndis_oobd {
1304 u32 size;
1305 u32 type;
1306 u32 class_info_offset;
1307 };
1308
1309 /* Packet extension field contents associated with a Data message. */
1310 struct rndis_per_packet_info {
1311 u32 size;
1312 u32 type:31;
1313 u32 internal:1;
1314 u32 ppi_offset;
1315 };
1316
1317 enum ndis_per_pkt_info_type {
1318 TCPIP_CHKSUM_PKTINFO,
1319 IPSEC_PKTINFO,
1320 TCP_LARGESEND_PKTINFO,
1321 CLASSIFICATION_HANDLE_PKTINFO,
1322 NDIS_RESERVED,
1323 SG_LIST_PKTINFO,
1324 IEEE_8021Q_INFO,
1325 ORIGINAL_PKTINFO,
1326 PACKET_CANCEL_ID,
1327 NBL_HASH_VALUE = PACKET_CANCEL_ID,
1328 ORIGINAL_NET_BUFLIST,
1329 CACHED_NET_BUFLIST,
1330 SHORT_PKT_PADINFO,
1331 MAX_PER_PKT_INFO
1332 };
1333
1334 enum rndis_per_pkt_info_interal_type {
1335 RNDIS_PKTINFO_ID = 1,
1336 /* Add more members here */
1337
1338 RNDIS_PKTINFO_MAX
1339 };
1340
1341 #define RNDIS_PKTINFO_SUBALLOC BIT(0)
1342 #define RNDIS_PKTINFO_1ST_FRAG BIT(1)
1343 #define RNDIS_PKTINFO_LAST_FRAG BIT(2)
1344
1345 #define RNDIS_PKTINFO_ID_V1 1
1346
1347 struct rndis_pktinfo_id {
1348 u8 ver;
1349 u8 flag;
1350 u16 pkt_id;
1351 };
1352
1353 struct ndis_object_header {
1354 u8 type;
1355 u8 revision;
1356 u16 size;
1357 };
1358
1359 #define NDIS_OBJECT_TYPE_DEFAULT 0x80
1360 #define NDIS_OFFLOAD_PARAMETERS_REVISION_3 3
1361 #define NDIS_OFFLOAD_PARAMETERS_REVISION_2 2
1362 #define NDIS_OFFLOAD_PARAMETERS_REVISION_1 1
1363
1364 #define NDIS_OFFLOAD_PARAMETERS_NO_CHANGE 0
1365 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_DISABLED 1
1366 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_ENABLED 2
1367 #define NDIS_OFFLOAD_PARAMETERS_LSOV1_ENABLED 2
1368 #define NDIS_OFFLOAD_PARAMETERS_RSC_DISABLED 1
1369 #define NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED 2
1370 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_DISABLED 1
1371 #define NDIS_OFFLOAD_PARAMETERS_TX_ENABLED_RX_DISABLED 2
1372 #define NDIS_OFFLOAD_PARAMETERS_RX_ENABLED_TX_DISABLED 3
1373 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED 4
1374
1375 #define NDIS_TCP_LARGE_SEND_OFFLOAD_V2_TYPE 1
1376 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV4 0
1377 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV6 1
1378
1379 #define VERSION_4_OFFLOAD_SIZE 22
1380 /*
1381 * New offload OIDs for NDIS 6
1382 */
1383 #define OID_TCP_OFFLOAD_CURRENT_CONFIG 0xFC01020B /* query only */
1384 #define OID_TCP_OFFLOAD_PARAMETERS 0xFC01020C /* set only */
1385 #define OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020D/* query only */
1386 #define OID_TCP_CONNECTION_OFFLOAD_CURRENT_CONFIG 0xFC01020E /* query only */
1387 #define OID_TCP_CONNECTION_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020F /* query */
1388 #define OID_OFFLOAD_ENCAPSULATION 0x0101010A /* set/query */
1389
1390 /*
1391 * OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES
1392 * ndis_type: NDIS_OBJTYPE_OFFLOAD
1393 */
1394
1395 #define NDIS_OFFLOAD_ENCAP_NONE 0x0000
1396 #define NDIS_OFFLOAD_ENCAP_NULL 0x0001
1397 #define NDIS_OFFLOAD_ENCAP_8023 0x0002
1398 #define NDIS_OFFLOAD_ENCAP_8023PQ 0x0004
1399 #define NDIS_OFFLOAD_ENCAP_8023PQ_OOB 0x0008
1400 #define NDIS_OFFLOAD_ENCAP_RFC1483 0x0010
1401
1402 struct ndis_csum_offload {
1403 u32 ip4_txenc;
1404 u32 ip4_txcsum;
1405 #define NDIS_TXCSUM_CAP_IP4OPT 0x001
1406 #define NDIS_TXCSUM_CAP_TCP4OPT 0x004
1407 #define NDIS_TXCSUM_CAP_TCP4 0x010
1408 #define NDIS_TXCSUM_CAP_UDP4 0x040
1409 #define NDIS_TXCSUM_CAP_IP4 0x100
1410
1411 #define NDIS_TXCSUM_ALL_TCP4 (NDIS_TXCSUM_CAP_TCP4 | NDIS_TXCSUM_CAP_TCP4OPT)
1412
1413 u32 ip4_rxenc;
1414 u32 ip4_rxcsum;
1415 #define NDIS_RXCSUM_CAP_IP4OPT 0x001
1416 #define NDIS_RXCSUM_CAP_TCP4OPT 0x004
1417 #define NDIS_RXCSUM_CAP_TCP4 0x010
1418 #define NDIS_RXCSUM_CAP_UDP4 0x040
1419 #define NDIS_RXCSUM_CAP_IP4 0x100
1420 u32 ip6_txenc;
1421 u32 ip6_txcsum;
1422 #define NDIS_TXCSUM_CAP_IP6EXT 0x001
1423 #define NDIS_TXCSUM_CAP_TCP6OPT 0x004
1424 #define NDIS_TXCSUM_CAP_TCP6 0x010
1425 #define NDIS_TXCSUM_CAP_UDP6 0x040
1426 u32 ip6_rxenc;
1427 u32 ip6_rxcsum;
1428 #define NDIS_RXCSUM_CAP_IP6EXT 0x001
1429 #define NDIS_RXCSUM_CAP_TCP6OPT 0x004
1430 #define NDIS_RXCSUM_CAP_TCP6 0x010
1431 #define NDIS_RXCSUM_CAP_UDP6 0x040
1432
1433 #define NDIS_TXCSUM_ALL_TCP6 (NDIS_TXCSUM_CAP_TCP6 | \
1434 NDIS_TXCSUM_CAP_TCP6OPT | \
1435 NDIS_TXCSUM_CAP_IP6EXT)
1436 };
1437
1438 struct ndis_lsov1_offload {
1439 u32 encap;
1440 u32 maxsize;
1441 u32 minsegs;
1442 u32 opts;
1443 };
1444
1445 struct ndis_ipsecv1_offload {
1446 u32 encap;
1447 u32 ah_esp;
1448 u32 xport_tun;
1449 u32 ip4_opts;
1450 u32 flags;
1451 u32 ip4_ah;
1452 u32 ip4_esp;
1453 };
1454
1455 struct ndis_lsov2_offload {
1456 u32 ip4_encap;
1457 u32 ip4_maxsz;
1458 u32 ip4_minsg;
1459 u32 ip6_encap;
1460 u32 ip6_maxsz;
1461 u32 ip6_minsg;
1462 u32 ip6_opts;
1463 #define NDIS_LSOV2_CAP_IP6EXT 0x001
1464 #define NDIS_LSOV2_CAP_TCP6OPT 0x004
1465
1466 #define NDIS_LSOV2_CAP_IP6 (NDIS_LSOV2_CAP_IP6EXT | \
1467 NDIS_LSOV2_CAP_TCP6OPT)
1468 };
1469
1470 struct ndis_ipsecv2_offload {
1471 u32 encap;
1472 u8 ip6;
1473 u8 ip4opt;
1474 u8 ip6ext;
1475 u8 ah;
1476 u8 esp;
1477 u8 ah_esp;
1478 u8 xport;
1479 u8 tun;
1480 u8 xport_tun;
1481 u8 lso;
1482 u8 extseq;
1483 u32 udp_esp;
1484 u32 auth;
1485 u32 crypto;
1486 u32 sa_caps;
1487 };
1488
1489 struct ndis_rsc_offload {
1490 u8 ip4;
1491 u8 ip6;
1492 };
1493
1494 struct ndis_encap_offload {
1495 u32 flags;
1496 u32 maxhdr;
1497 };
1498
1499 struct ndis_offload {
1500 struct ndis_object_header header;
1501 struct ndis_csum_offload csum;
1502 struct ndis_lsov1_offload lsov1;
1503 struct ndis_ipsecv1_offload ipsecv1;
1504 struct ndis_lsov2_offload lsov2;
1505 u32 flags;
1506 /* NDIS >= 6.1 */
1507 struct ndis_ipsecv2_offload ipsecv2;
1508 /* NDIS >= 6.30 */
1509 struct ndis_rsc_offload rsc;
1510 struct ndis_encap_offload encap_gre;
1511 };
1512
1513 #define NDIS_OFFLOAD_SIZE sizeof(struct ndis_offload)
1514 #define NDIS_OFFLOAD_SIZE_6_0 offsetof(struct ndis_offload, ipsecv2)
1515 #define NDIS_OFFLOAD_SIZE_6_1 offsetof(struct ndis_offload, rsc)
1516
1517 struct ndis_offload_params {
1518 struct ndis_object_header header;
1519 u8 ip_v4_csum;
1520 u8 tcp_ip_v4_csum;
1521 u8 udp_ip_v4_csum;
1522 u8 tcp_ip_v6_csum;
1523 u8 udp_ip_v6_csum;
1524 u8 lso_v1;
1525 u8 ip_sec_v1;
1526 u8 lso_v2_ipv4;
1527 u8 lso_v2_ipv6;
1528 u8 tcp_connection_ip_v4;
1529 u8 tcp_connection_ip_v6;
1530 u32 flags;
1531 u8 ip_sec_v2;
1532 u8 ip_sec_v2_ip_v4;
1533 struct {
1534 u8 rsc_ip_v4;
1535 u8 rsc_ip_v6;
1536 };
1537 struct {
1538 u8 encapsulated_packet_task_offload;
1539 u8 encapsulation_types;
1540 };
1541 };
1542
1543 struct ndis_tcp_lso_info {
1544 union {
1545 struct {
1546 u32 unused:30;
1547 u32 type:1;
1548 u32 reserved2:1;
1549 } transmit;
1550 struct {
1551 u32 mss:20;
1552 u32 tcp_header_offset:10;
1553 u32 type:1;
1554 u32 reserved2:1;
1555 } lso_v1_transmit;
1556 struct {
1557 u32 tcp_payload:30;
1558 u32 type:1;
1559 u32 reserved2:1;
1560 } lso_v1_transmit_complete;
1561 struct {
1562 u32 mss:20;
1563 u32 tcp_header_offset:10;
1564 u32 type:1;
1565 u32 ip_version:1;
1566 } lso_v2_transmit;
1567 struct {
1568 u32 reserved:30;
1569 u32 type:1;
1570 u32 reserved2:1;
1571 } lso_v2_transmit_complete;
1572 u32 value;
1573 };
1574 };
1575
1576 #define NDIS_VLAN_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1577 sizeof(struct ndis_pkt_8021q_info))
1578
1579 #define NDIS_CSUM_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1580 sizeof(struct ndis_tcp_ip_checksum_info))
1581
1582 #define NDIS_LSO_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1583 sizeof(struct ndis_tcp_lso_info))
1584
1585 #define NDIS_HASH_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1586 sizeof(u32))
1587
1588 /* Total size of all PPI data */
1589 #define NDIS_ALL_PPI_SIZE (NDIS_VLAN_PPI_SIZE + NDIS_CSUM_PPI_SIZE + \
1590 NDIS_LSO_PPI_SIZE + NDIS_HASH_PPI_SIZE)
1591
1592 /* Format of Information buffer passed in a SetRequest for the OID */
1593 /* OID_GEN_RNDIS_CONFIG_PARAMETER. */
1594 struct rndis_config_parameter_info {
1595 u32 parameter_name_offset;
1596 u32 parameter_name_length;
1597 u32 parameter_type;
1598 u32 parameter_value_offset;
1599 u32 parameter_value_length;
1600 };
1601
1602 /* Values for ParameterType in struct rndis_config_parameter_info */
1603 #define RNDIS_CONFIG_PARAM_TYPE_INTEGER 0
1604 #define RNDIS_CONFIG_PARAM_TYPE_STRING 2
1605
1606 /* CONDIS Miniport messages for connection oriented devices */
1607 /* that do not implement a call manager. */
1608
1609 /* CoNdisMiniportCreateVc message */
1610 struct rcondis_mp_create_vc {
1611 u32 req_id;
1612 u32 ndis_vc_handle;
1613 };
1614
1615 /* Response to CoNdisMiniportCreateVc */
1616 struct rcondis_mp_create_vc_complete {
1617 u32 req_id;
1618 u32 dev_vc_handle;
1619 u32 status;
1620 };
1621
1622 /* CoNdisMiniportDeleteVc message */
1623 struct rcondis_mp_delete_vc {
1624 u32 req_id;
1625 u32 dev_vc_handle;
1626 };
1627
1628 /* Response to CoNdisMiniportDeleteVc */
1629 struct rcondis_mp_delete_vc_complete {
1630 u32 req_id;
1631 u32 status;
1632 };
1633
1634 /* CoNdisMiniportQueryRequest message */
1635 struct rcondis_mp_query_request {
1636 u32 req_id;
1637 u32 request_type;
1638 u32 oid;
1639 u32 dev_vc_handle;
1640 u32 info_buflen;
1641 u32 info_buf_offset;
1642 };
1643
1644 /* CoNdisMiniportSetRequest message */
1645 struct rcondis_mp_set_request {
1646 u32 req_id;
1647 u32 request_type;
1648 u32 oid;
1649 u32 dev_vc_handle;
1650 u32 info_buflen;
1651 u32 info_buf_offset;
1652 };
1653
1654 /* CoNdisIndicateStatus message */
1655 struct rcondis_indicate_status {
1656 u32 ndis_vc_handle;
1657 u32 status;
1658 u32 status_buflen;
1659 u32 status_buf_offset;
1660 };
1661
1662 /* CONDIS Call/VC parameters */
1663 struct rcondis_specific_parameters {
1664 u32 parameter_type;
1665 u32 parameter_length;
1666 u32 parameter_lffset;
1667 };
1668
1669 struct rcondis_media_parameters {
1670 u32 flags;
1671 u32 reserved1;
1672 u32 reserved2;
1673 struct rcondis_specific_parameters media_specific;
1674 };
1675
1676 struct rndis_flowspec {
1677 u32 token_rate;
1678 u32 token_bucket_size;
1679 u32 peak_bandwidth;
1680 u32 latency;
1681 u32 delay_variation;
1682 u32 service_type;
1683 u32 max_sdu_size;
1684 u32 minimum_policed_size;
1685 };
1686
1687 struct rcondis_call_manager_parameters {
1688 struct rndis_flowspec transmit;
1689 struct rndis_flowspec receive;
1690 struct rcondis_specific_parameters call_mgr_specific;
1691 };
1692
1693 /* CoNdisMiniportActivateVc message */
1694 struct rcondis_mp_activate_vc_request {
1695 u32 req_id;
1696 u32 flags;
1697 u32 dev_vc_handle;
1698 u32 media_params_offset;
1699 u32 media_params_length;
1700 u32 call_mgr_params_offset;
1701 u32 call_mgr_params_length;
1702 };
1703
1704 /* Response to CoNdisMiniportActivateVc */
1705 struct rcondis_mp_activate_vc_complete {
1706 u32 req_id;
1707 u32 status;
1708 };
1709
1710 /* CoNdisMiniportDeactivateVc message */
1711 struct rcondis_mp_deactivate_vc_request {
1712 u32 req_id;
1713 u32 flags;
1714 u32 dev_vc_handle;
1715 };
1716
1717 /* Response to CoNdisMiniportDeactivateVc */
1718 struct rcondis_mp_deactivate_vc_complete {
1719 u32 req_id;
1720 u32 status;
1721 };
1722
1723
1724 /* union with all of the RNDIS messages */
1725 union rndis_message_container {
1726 struct rndis_packet pkt;
1727 struct rndis_initialize_request init_req;
1728 struct rndis_halt_request halt_req;
1729 struct rndis_query_request query_req;
1730 struct rndis_set_request set_req;
1731 struct rndis_reset_request reset_req;
1732 struct rndis_keepalive_request keep_alive_req;
1733 struct rndis_indicate_status indicate_status;
1734 struct rndis_initialize_complete init_complete;
1735 struct rndis_query_complete query_complete;
1736 struct rndis_set_complete set_complete;
1737 struct rndis_reset_complete reset_complete;
1738 struct rndis_keepalive_complete keep_alive_complete;
1739 struct rcondis_mp_create_vc co_miniport_create_vc;
1740 struct rcondis_mp_delete_vc co_miniport_delete_vc;
1741 struct rcondis_indicate_status co_indicate_status;
1742 struct rcondis_mp_activate_vc_request co_miniport_activate_vc;
1743 struct rcondis_mp_deactivate_vc_request co_miniport_deactivate_vc;
1744 struct rcondis_mp_create_vc_complete co_miniport_create_vc_complete;
1745 struct rcondis_mp_delete_vc_complete co_miniport_delete_vc_complete;
1746 struct rcondis_mp_activate_vc_complete co_miniport_activate_vc_complete;
1747 struct rcondis_mp_deactivate_vc_complete
1748 co_miniport_deactivate_vc_complete;
1749 };
1750
1751 /* Remote NDIS message format */
1752 struct rndis_message {
1753 u32 ndis_msg_type;
1754
1755 /* Total length of this message, from the beginning */
1756 /* of the struct rndis_message, in bytes. */
1757 u32 msg_len;
1758
1759 /* Actual message */
1760 union rndis_message_container msg;
1761 };
1762
1763
1764 /* Handy macros */
1765
1766 /* get the size of an RNDIS message. Pass in the message type, */
1767 /* struct rndis_set_request, struct rndis_packet for example */
1768 #define RNDIS_MESSAGE_SIZE(msg) \
1769 (sizeof(msg) + (sizeof(struct rndis_message) - \
1770 sizeof(union rndis_message_container)))
1771
1772 #define RNDIS_HEADER_SIZE (sizeof(struct rndis_message) - \
1773 sizeof(union rndis_message_container))
1774
1775 #define RNDIS_AND_PPI_SIZE (sizeof(struct rndis_message) + NDIS_ALL_PPI_SIZE)
1776
1777 #define NDIS_PACKET_TYPE_DIRECTED 0x00000001
1778 #define NDIS_PACKET_TYPE_MULTICAST 0x00000002
1779 #define NDIS_PACKET_TYPE_ALL_MULTICAST 0x00000004
1780 #define NDIS_PACKET_TYPE_BROADCAST 0x00000008
1781 #define NDIS_PACKET_TYPE_SOURCE_ROUTING 0x00000010
1782 #define NDIS_PACKET_TYPE_PROMISCUOUS 0x00000020
1783 #define NDIS_PACKET_TYPE_SMT 0x00000040
1784 #define NDIS_PACKET_TYPE_ALL_LOCAL 0x00000080
1785 #define NDIS_PACKET_TYPE_GROUP 0x00000100
1786 #define NDIS_PACKET_TYPE_ALL_FUNCTIONAL 0x00000200
1787 #define NDIS_PACKET_TYPE_FUNCTIONAL 0x00000400
1788 #define NDIS_PACKET_TYPE_MAC_FRAME 0x00000800
1789
1790 #define TRANSPORT_INFO_NOT_IP 0
1791 #define TRANSPORT_INFO_IPV4_TCP 0x01
1792 #define TRANSPORT_INFO_IPV4_UDP 0x02
1793 #define TRANSPORT_INFO_IPV6_TCP 0x10
1794 #define TRANSPORT_INFO_IPV6_UDP 0x20
1795
1796 #define RETRY_US_LO 5000
1797 #define RETRY_US_HI 10000
1798 #define RETRY_MAX 2000 /* >10 sec */
1799
1800 void netvsc_dma_unmap(struct hv_device *hv_dev,
1801 struct hv_netvsc_packet *packet);
1802 #endif /* _HYPERV_NET_H */
1803