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1/*
2 *
3 * Copyright (c) 2011, Microsoft Corporation.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms and conditions of the GNU General Public License,
7 * version 2, as published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, see <http://www.gnu.org/licenses/>.
16 *
17 * Authors:
18 * Haiyang Zhang <haiyangz@microsoft.com>
19 * Hank Janssen <hjanssen@microsoft.com>
20 * K. Y. Srinivasan <kys@microsoft.com>
21 *
22 */
23
24#ifndef _HYPERV_NET_H
25#define _HYPERV_NET_H
26
27#include <linux/list.h>
28#include <linux/hyperv.h>
29#include <linux/rndis.h>
30
31/* Fwd declaration */
32struct hv_netvsc_packet;
33struct ndis_tcp_ip_checksum_info;
34
35/* Represent the xfer page packet which contains 1 or more netvsc packet */
36struct xferpage_packet {
37 struct list_head list_ent;
38 u32 status;
39
40 /* # of netvsc packets this xfer packet contains */
41 u32 count;
42};
43
44/*
45 * Represent netvsc packet which contains 1 RNDIS and 1 ethernet frame
46 * within the RNDIS
47 */
48struct hv_netvsc_packet {
49 /* Bookkeeping stuff */
50 struct list_head list_ent;
51 u32 status;
52
53 struct hv_device *device;
54 bool is_data_pkt;
55 u16 vlan_tci;
56
57 /*
58 * Valid only for receives when we break a xfer page packet
59 * into multiple netvsc packets
60 */
61 struct xferpage_packet *xfer_page_pkt;
62
63 union {
64 struct {
65 u64 recv_completion_tid;
66 void *recv_completion_ctx;
67 void (*recv_completion)(void *context);
68 } recv;
69 struct {
70 u64 send_completion_tid;
71 void *send_completion_ctx;
72 void (*send_completion)(void *context);
73 } send;
74 } completion;
75
76 /* This points to the memory after page_buf */
77 struct rndis_message *rndis_msg;
78
79 u32 total_data_buflen;
80 /* Points to the send/receive buffer where the ethernet frame is */
81 void *data;
82 u32 page_buf_cnt;
83 struct hv_page_buffer page_buf[0];
84};
85
86struct netvsc_device_info {
87 unsigned char mac_adr[ETH_ALEN];
88 bool link_state; /* 0 - link up, 1 - link down */
89 int ring_size;
90};
91
92enum rndis_device_state {
93 RNDIS_DEV_UNINITIALIZED = 0,
94 RNDIS_DEV_INITIALIZING,
95 RNDIS_DEV_INITIALIZED,
96 RNDIS_DEV_DATAINITIALIZED,
97};
98
99struct rndis_device {
100 struct netvsc_device *net_dev;
101
102 enum rndis_device_state state;
103 bool link_state;
104 atomic_t new_req_id;
105
106 spinlock_t request_lock;
107 struct list_head req_list;
108
109 unsigned char hw_mac_adr[ETH_ALEN];
110};
111
112
113/* Interface */
114int netvsc_device_add(struct hv_device *device, void *additional_info);
115int netvsc_device_remove(struct hv_device *device);
116int netvsc_send(struct hv_device *device,
117 struct hv_netvsc_packet *packet);
118void netvsc_linkstatus_callback(struct hv_device *device_obj,
119 unsigned int status);
120int netvsc_recv_callback(struct hv_device *device_obj,
121 struct hv_netvsc_packet *packet,
122 struct ndis_tcp_ip_checksum_info *csum_info);
123int rndis_filter_open(struct hv_device *dev);
124int rndis_filter_close(struct hv_device *dev);
125int rndis_filter_device_add(struct hv_device *dev,
126 void *additional_info);
127void rndis_filter_device_remove(struct hv_device *dev);
128int rndis_filter_receive(struct hv_device *dev,
129 struct hv_netvsc_packet *pkt);
130
131int rndis_filter_set_packet_filter(struct rndis_device *dev, u32 new_filter);
132int rndis_filter_set_device_mac(struct hv_device *hdev, char *mac);
133
134
135#define NVSP_INVALID_PROTOCOL_VERSION ((u32)0xFFFFFFFF)
136
137#define NVSP_PROTOCOL_VERSION_1 2
138#define NVSP_PROTOCOL_VERSION_2 0x30002
139#define NVSP_PROTOCOL_VERSION_4 0x40000
140#define NVSP_PROTOCOL_VERSION_5 0x50000
141
142enum {
143 NVSP_MSG_TYPE_NONE = 0,
144
145 /* Init Messages */
146 NVSP_MSG_TYPE_INIT = 1,
147 NVSP_MSG_TYPE_INIT_COMPLETE = 2,
148
149 NVSP_VERSION_MSG_START = 100,
150
151 /* Version 1 Messages */
152 NVSP_MSG1_TYPE_SEND_NDIS_VER = NVSP_VERSION_MSG_START,
153
154 NVSP_MSG1_TYPE_SEND_RECV_BUF,
155 NVSP_MSG1_TYPE_SEND_RECV_BUF_COMPLETE,
156 NVSP_MSG1_TYPE_REVOKE_RECV_BUF,
157
158 NVSP_MSG1_TYPE_SEND_SEND_BUF,
159 NVSP_MSG1_TYPE_SEND_SEND_BUF_COMPLETE,
160 NVSP_MSG1_TYPE_REVOKE_SEND_BUF,
161
162 NVSP_MSG1_TYPE_SEND_RNDIS_PKT,
163 NVSP_MSG1_TYPE_SEND_RNDIS_PKT_COMPLETE,
164
165 /* Version 2 messages */
166 NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF,
167 NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF_COMP,
168 NVSP_MSG2_TYPE_REVOKE_CHIMNEY_DELEGATED_BUF,
169
170 NVSP_MSG2_TYPE_RESUME_CHIMNEY_RX_INDICATION,
171
172 NVSP_MSG2_TYPE_TERMINATE_CHIMNEY,
173 NVSP_MSG2_TYPE_TERMINATE_CHIMNEY_COMP,
174
175 NVSP_MSG2_TYPE_INDICATE_CHIMNEY_EVENT,
176
177 NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT,
178 NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT_COMP,
179
180 NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ,
181 NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ_COMP,
182
183 NVSP_MSG2_TYPE_ALLOC_RXBUF,
184 NVSP_MSG2_TYPE_ALLOC_RXBUF_COMP,
185
186 NVSP_MSG2_TYPE_FREE_RXBUF,
187
188 NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT,
189 NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT_COMP,
190
191 NVSP_MSG2_TYPE_SEND_NDIS_CONFIG,
192
193 NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE,
194 NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP,
195
196 NVSP_MSG2_MAX = NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP,
197
198 /* Version 4 messages */
199 NVSP_MSG4_TYPE_SEND_VF_ASSOCIATION,
200 NVSP_MSG4_TYPE_SWITCH_DATA_PATH,
201 NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED,
202
203 NVSP_MSG4_MAX = NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED,
204
205 /* Version 5 messages */
206 NVSP_MSG5_TYPE_OID_QUERY_EX,
207 NVSP_MSG5_TYPE_OID_QUERY_EX_COMP,
208 NVSP_MSG5_TYPE_SUBCHANNEL,
209 NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE,
210
211 NVSP_MSG5_MAX = NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE,
212};
213
214enum {
215 NVSP_STAT_NONE = 0,
216 NVSP_STAT_SUCCESS,
217 NVSP_STAT_FAIL,
218 NVSP_STAT_PROTOCOL_TOO_NEW,
219 NVSP_STAT_PROTOCOL_TOO_OLD,
220 NVSP_STAT_INVALID_RNDIS_PKT,
221 NVSP_STAT_BUSY,
222 NVSP_STAT_PROTOCOL_UNSUPPORTED,
223 NVSP_STAT_MAX,
224};
225
226struct nvsp_message_header {
227 u32 msg_type;
228};
229
230/* Init Messages */
231
232/*
233 * This message is used by the VSC to initialize the channel after the channels
234 * has been opened. This message should never include anything other then
235 * versioning (i.e. this message will be the same for ever).
236 */
237struct nvsp_message_init {
238 u32 min_protocol_ver;
239 u32 max_protocol_ver;
240} __packed;
241
242/*
243 * This message is used by the VSP to complete the initialization of the
244 * channel. This message should never include anything other then versioning
245 * (i.e. this message will be the same for ever).
246 */
247struct nvsp_message_init_complete {
248 u32 negotiated_protocol_ver;
249 u32 max_mdl_chain_len;
250 u32 status;
251} __packed;
252
253union nvsp_message_init_uber {
254 struct nvsp_message_init init;
255 struct nvsp_message_init_complete init_complete;
256} __packed;
257
258/* Version 1 Messages */
259
260/*
261 * This message is used by the VSC to send the NDIS version to the VSP. The VSP
262 * can use this information when handling OIDs sent by the VSC.
263 */
264struct nvsp_1_message_send_ndis_version {
265 u32 ndis_major_ver;
266 u32 ndis_minor_ver;
267} __packed;
268
269/*
270 * This message is used by the VSC to send a receive buffer to the VSP. The VSP
271 * can then use the receive buffer to send data to the VSC.
272 */
273struct nvsp_1_message_send_receive_buffer {
274 u32 gpadl_handle;
275 u16 id;
276} __packed;
277
278struct nvsp_1_receive_buffer_section {
279 u32 offset;
280 u32 sub_alloc_size;
281 u32 num_sub_allocs;
282 u32 end_offset;
283} __packed;
284
285/*
286 * This message is used by the VSP to acknowledge a receive buffer send by the
287 * VSC. This message must be sent by the VSP before the VSP uses the receive
288 * buffer.
289 */
290struct nvsp_1_message_send_receive_buffer_complete {
291 u32 status;
292 u32 num_sections;
293
294 /*
295 * The receive buffer is split into two parts, a large suballocation
296 * section and a small suballocation section. These sections are then
297 * suballocated by a certain size.
298 */
299
300 /*
301 * For example, the following break up of the receive buffer has 6
302 * large suballocations and 10 small suballocations.
303 */
304
305 /*
306 * | Large Section | | Small Section |
307 * ------------------------------------------------------------
308 * | | | | | | | | | | | | | | | | | |
309 * | |
310 * LargeOffset SmallOffset
311 */
312
313 struct nvsp_1_receive_buffer_section sections[1];
314} __packed;
315
316/*
317 * This message is sent by the VSC to revoke the receive buffer. After the VSP
318 * completes this transaction, the vsp should never use the receive buffer
319 * again.
320 */
321struct nvsp_1_message_revoke_receive_buffer {
322 u16 id;
323};
324
325/*
326 * This message is used by the VSC to send a send buffer to the VSP. The VSC
327 * can then use the send buffer to send data to the VSP.
328 */
329struct nvsp_1_message_send_send_buffer {
330 u32 gpadl_handle;
331 u16 id;
332} __packed;
333
334/*
335 * This message is used by the VSP to acknowledge a send buffer sent by the
336 * VSC. This message must be sent by the VSP before the VSP uses the sent
337 * buffer.
338 */
339struct nvsp_1_message_send_send_buffer_complete {
340 u32 status;
341
342 /*
343 * The VSC gets to choose the size of the send buffer and the VSP gets
344 * to choose the sections size of the buffer. This was done to enable
345 * dynamic reconfigurations when the cost of GPA-direct buffers
346 * decreases.
347 */
348 u32 section_size;
349} __packed;
350
351/*
352 * This message is sent by the VSC to revoke the send buffer. After the VSP
353 * completes this transaction, the vsp should never use the send buffer again.
354 */
355struct nvsp_1_message_revoke_send_buffer {
356 u16 id;
357};
358
359/*
360 * This message is used by both the VSP and the VSC to send a RNDIS message to
361 * the opposite channel endpoint.
362 */
363struct nvsp_1_message_send_rndis_packet {
364 /*
365 * This field is specified by RNIDS. They assume there's two different
366 * channels of communication. However, the Network VSP only has one.
367 * Therefore, the channel travels with the RNDIS packet.
368 */
369 u32 channel_type;
370
371 /*
372 * This field is used to send part or all of the data through a send
373 * buffer. This values specifies an index into the send buffer. If the
374 * index is 0xFFFFFFFF, then the send buffer is not being used and all
375 * of the data was sent through other VMBus mechanisms.
376 */
377 u32 send_buf_section_index;
378 u32 send_buf_section_size;
379} __packed;
380
381/*
382 * This message is used by both the VSP and the VSC to complete a RNDIS message
383 * to the opposite channel endpoint. At this point, the initiator of this
384 * message cannot use any resources associated with the original RNDIS packet.
385 */
386struct nvsp_1_message_send_rndis_packet_complete {
387 u32 status;
388};
389
390union nvsp_1_message_uber {
391 struct nvsp_1_message_send_ndis_version send_ndis_ver;
392
393 struct nvsp_1_message_send_receive_buffer send_recv_buf;
394 struct nvsp_1_message_send_receive_buffer_complete
395 send_recv_buf_complete;
396 struct nvsp_1_message_revoke_receive_buffer revoke_recv_buf;
397
398 struct nvsp_1_message_send_send_buffer send_send_buf;
399 struct nvsp_1_message_send_send_buffer_complete send_send_buf_complete;
400 struct nvsp_1_message_revoke_send_buffer revoke_send_buf;
401
402 struct nvsp_1_message_send_rndis_packet send_rndis_pkt;
403 struct nvsp_1_message_send_rndis_packet_complete
404 send_rndis_pkt_complete;
405} __packed;
406
407
408/*
409 * Network VSP protocol version 2 messages:
410 */
411struct nvsp_2_vsc_capability {
412 union {
413 u64 data;
414 struct {
415 u64 vmq:1;
416 u64 chimney:1;
417 u64 sriov:1;
418 u64 ieee8021q:1;
419 u64 correlation_id:1;
420 };
421 };
422} __packed;
423
424struct nvsp_2_send_ndis_config {
425 u32 mtu;
426 u32 reserved;
427 struct nvsp_2_vsc_capability capability;
428} __packed;
429
430/* Allocate receive buffer */
431struct nvsp_2_alloc_rxbuf {
432 /* Allocation ID to match the allocation request and response */
433 u32 alloc_id;
434
435 /* Length of the VM shared memory receive buffer that needs to
436 * be allocated
437 */
438 u32 len;
439} __packed;
440
441/* Allocate receive buffer complete */
442struct nvsp_2_alloc_rxbuf_comp {
443 /* The NDIS_STATUS code for buffer allocation */
444 u32 status;
445
446 u32 alloc_id;
447
448 /* GPADL handle for the allocated receive buffer */
449 u32 gpadl_handle;
450
451 /* Receive buffer ID */
452 u64 recv_buf_id;
453} __packed;
454
455struct nvsp_2_free_rxbuf {
456 u64 recv_buf_id;
457} __packed;
458
459union nvsp_2_message_uber {
460 struct nvsp_2_send_ndis_config send_ndis_config;
461 struct nvsp_2_alloc_rxbuf alloc_rxbuf;
462 struct nvsp_2_alloc_rxbuf_comp alloc_rxbuf_comp;
463 struct nvsp_2_free_rxbuf free_rxbuf;
464} __packed;
465
466enum nvsp_subchannel_operation {
467 NVSP_SUBCHANNEL_NONE = 0,
468 NVSP_SUBCHANNEL_ALLOCATE,
469 NVSP_SUBCHANNEL_MAX
470};
471
472struct nvsp_5_subchannel_request {
473 u32 op;
474 u32 num_subchannels;
475} __packed;
476
477struct nvsp_5_subchannel_complete {
478 u32 status;
479 u32 num_subchannels; /* Actual number of subchannels allocated */
480} __packed;
481
482struct nvsp_5_send_indirect_table {
483 /* The number of entries in the send indirection table */
484 u32 count;
485
486 /* The offset of the send indireciton table from top of this struct.
487 * The send indirection table tells which channel to put the send
488 * traffic on. Each entry is a channel number.
489 */
490 u32 offset;
491} __packed;
492
493union nvsp_5_message_uber {
494 struct nvsp_5_subchannel_request subchn_req;
495 struct nvsp_5_subchannel_complete subchn_comp;
496 struct nvsp_5_send_indirect_table send_table;
497} __packed;
498
499union nvsp_all_messages {
500 union nvsp_message_init_uber init_msg;
501 union nvsp_1_message_uber v1_msg;
502 union nvsp_2_message_uber v2_msg;
503 union nvsp_5_message_uber v5_msg;
504} __packed;
505
506/* ALL Messages */
507struct nvsp_message {
508 struct nvsp_message_header hdr;
509 union nvsp_all_messages msg;
510} __packed;
511
512
513#define NETVSC_MTU 65536
514
515#define NETVSC_RECEIVE_BUFFER_SIZE (1024*1024*16) /* 16MB */
516#define NETVSC_RECEIVE_BUFFER_SIZE_LEGACY (1024*1024*15) /* 15MB */
517
518#define NETVSC_RECEIVE_BUFFER_ID 0xcafe
519
520/* Preallocated receive packets */
521#define NETVSC_RECEIVE_PACKETLIST_COUNT 256
522
523#define NETVSC_PACKET_SIZE 2048
524
525/* Per netvsc channel-specific */
526struct netvsc_device {
527 struct hv_device *dev;
528
529 u32 nvsp_version;
530
531 atomic_t num_outstanding_sends;
532 wait_queue_head_t wait_drain;
533 bool start_remove;
534 bool destroy;
535 /*
536 * List of free preallocated hv_netvsc_packet to represent receive
537 * packet
538 */
539 struct list_head recv_pkt_list;
540 spinlock_t recv_pkt_list_lock;
541
542 /* Receive buffer allocated by us but manages by NetVSP */
543 void *recv_buf;
544 u32 recv_buf_size;
545 u32 recv_buf_gpadl_handle;
546 u32 recv_section_cnt;
547 struct nvsp_1_receive_buffer_section *recv_section;
548
549 /* Used for NetVSP initialization protocol */
550 struct completion channel_init_wait;
551 struct nvsp_message channel_init_pkt;
552
553 struct nvsp_message revoke_packet;
554 /* unsigned char HwMacAddr[HW_MACADDR_LEN]; */
555
556 struct net_device *ndev;
557
558 /* Holds rndis device info */
559 void *extension;
560 /* The recive buffer for this device */
561 unsigned char cb_buffer[NETVSC_PACKET_SIZE];
562};
563
564/* NdisInitialize message */
565struct rndis_initialize_request {
566 u32 req_id;
567 u32 major_ver;
568 u32 minor_ver;
569 u32 max_xfer_size;
570};
571
572/* Response to NdisInitialize */
573struct rndis_initialize_complete {
574 u32 req_id;
575 u32 status;
576 u32 major_ver;
577 u32 minor_ver;
578 u32 dev_flags;
579 u32 medium;
580 u32 max_pkt_per_msg;
581 u32 max_xfer_size;
582 u32 pkt_alignment_factor;
583 u32 af_list_offset;
584 u32 af_list_size;
585};
586
587/* Call manager devices only: Information about an address family */
588/* supported by the device is appended to the response to NdisInitialize. */
589struct rndis_co_address_family {
590 u32 address_family;
591 u32 major_ver;
592 u32 minor_ver;
593};
594
595/* NdisHalt message */
596struct rndis_halt_request {
597 u32 req_id;
598};
599
600/* NdisQueryRequest message */
601struct rndis_query_request {
602 u32 req_id;
603 u32 oid;
604 u32 info_buflen;
605 u32 info_buf_offset;
606 u32 dev_vc_handle;
607};
608
609/* Response to NdisQueryRequest */
610struct rndis_query_complete {
611 u32 req_id;
612 u32 status;
613 u32 info_buflen;
614 u32 info_buf_offset;
615};
616
617/* NdisSetRequest message */
618struct rndis_set_request {
619 u32 req_id;
620 u32 oid;
621 u32 info_buflen;
622 u32 info_buf_offset;
623 u32 dev_vc_handle;
624};
625
626/* Response to NdisSetRequest */
627struct rndis_set_complete {
628 u32 req_id;
629 u32 status;
630};
631
632/* NdisReset message */
633struct rndis_reset_request {
634 u32 reserved;
635};
636
637/* Response to NdisReset */
638struct rndis_reset_complete {
639 u32 status;
640 u32 addressing_reset;
641};
642
643/* NdisMIndicateStatus message */
644struct rndis_indicate_status {
645 u32 status;
646 u32 status_buflen;
647 u32 status_buf_offset;
648};
649
650/* Diagnostic information passed as the status buffer in */
651/* struct rndis_indicate_status messages signifying error conditions. */
652struct rndis_diagnostic_info {
653 u32 diag_status;
654 u32 error_offset;
655};
656
657/* NdisKeepAlive message */
658struct rndis_keepalive_request {
659 u32 req_id;
660};
661
662/* Response to NdisKeepAlive */
663struct rndis_keepalive_complete {
664 u32 req_id;
665 u32 status;
666};
667
668/*
669 * Data message. All Offset fields contain byte offsets from the beginning of
670 * struct rndis_packet. All Length fields are in bytes. VcHandle is set
671 * to 0 for connectionless data, otherwise it contains the VC handle.
672 */
673struct rndis_packet {
674 u32 data_offset;
675 u32 data_len;
676 u32 oob_data_offset;
677 u32 oob_data_len;
678 u32 num_oob_data_elements;
679 u32 per_pkt_info_offset;
680 u32 per_pkt_info_len;
681 u32 vc_handle;
682 u32 reserved;
683};
684
685/* Optional Out of Band data associated with a Data message. */
686struct rndis_oobd {
687 u32 size;
688 u32 type;
689 u32 class_info_offset;
690};
691
692/* Packet extension field contents associated with a Data message. */
693struct rndis_per_packet_info {
694 u32 size;
695 u32 type;
696 u32 ppi_offset;
697};
698
699enum ndis_per_pkt_info_type {
700 TCPIP_CHKSUM_PKTINFO,
701 IPSEC_PKTINFO,
702 TCP_LARGESEND_PKTINFO,
703 CLASSIFICATION_HANDLE_PKTINFO,
704 NDIS_RESERVED,
705 SG_LIST_PKTINFO,
706 IEEE_8021Q_INFO,
707 ORIGINAL_PKTINFO,
708 PACKET_CANCEL_ID,
709 ORIGINAL_NET_BUFLIST,
710 CACHED_NET_BUFLIST,
711 SHORT_PKT_PADINFO,
712 MAX_PER_PKT_INFO
713};
714
715struct ndis_pkt_8021q_info {
716 union {
717 struct {
718 u32 pri:3; /* User Priority */
719 u32 cfi:1; /* Canonical Format ID */
720 u32 vlanid:12; /* VLAN ID */
721 u32 reserved:16;
722 };
723 u32 value;
724 };
725};
726
727struct ndis_oject_header {
728 u8 type;
729 u8 revision;
730 u16 size;
731};
732
733#define NDIS_OBJECT_TYPE_DEFAULT 0x80
734#define NDIS_OFFLOAD_PARAMETERS_REVISION_3 3
735#define NDIS_OFFLOAD_PARAMETERS_NO_CHANGE 0
736#define NDIS_OFFLOAD_PARAMETERS_LSOV2_DISABLED 1
737#define NDIS_OFFLOAD_PARAMETERS_LSOV2_ENABLED 2
738#define NDIS_OFFLOAD_PARAMETERS_LSOV1_ENABLED 2
739#define NDIS_OFFLOAD_PARAMETERS_RSC_DISABLED 1
740#define NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED 2
741#define NDIS_OFFLOAD_PARAMETERS_TX_RX_DISABLED 1
742#define NDIS_OFFLOAD_PARAMETERS_TX_ENABLED_RX_DISABLED 2
743#define NDIS_OFFLOAD_PARAMETERS_RX_ENABLED_TX_DISABLED 3
744#define NDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED 4
745
746#define NDIS_TCP_LARGE_SEND_OFFLOAD_V2_TYPE 1
747#define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV4 0
748#define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV6 1
749
750#define VERSION_4_OFFLOAD_SIZE 22
751/*
752 * New offload OIDs for NDIS 6
753 */
754#define OID_TCP_OFFLOAD_CURRENT_CONFIG 0xFC01020B /* query only */
755#define OID_TCP_OFFLOAD_PARAMETERS 0xFC01020C /* set only */
756#define OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020D/* query only */
757#define OID_TCP_CONNECTION_OFFLOAD_CURRENT_CONFIG 0xFC01020E /* query only */
758#define OID_TCP_CONNECTION_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020F /* query */
759#define OID_OFFLOAD_ENCAPSULATION 0x0101010A /* set/query */
760
761struct ndis_offload_params {
762 struct ndis_oject_header header;
763 u8 ip_v4_csum;
764 u8 tcp_ip_v4_csum;
765 u8 udp_ip_v4_csum;
766 u8 tcp_ip_v6_csum;
767 u8 udp_ip_v6_csum;
768 u8 lso_v1;
769 u8 ip_sec_v1;
770 u8 lso_v2_ipv4;
771 u8 lso_v2_ipv6;
772 u8 tcp_connection_ip_v4;
773 u8 tcp_connection_ip_v6;
774 u32 flags;
775 u8 ip_sec_v2;
776 u8 ip_sec_v2_ip_v4;
777 struct {
778 u8 rsc_ip_v4;
779 u8 rsc_ip_v6;
780 };
781 struct {
782 u8 encapsulated_packet_task_offload;
783 u8 encapsulation_types;
784 };
785};
786
787struct ndis_tcp_ip_checksum_info {
788 union {
789 struct {
790 u32 is_ipv4:1;
791 u32 is_ipv6:1;
792 u32 tcp_checksum:1;
793 u32 udp_checksum:1;
794 u32 ip_header_checksum:1;
795 u32 reserved:11;
796 u32 tcp_header_offset:10;
797 } transmit;
798 struct {
799 u32 tcp_checksum_failed:1;
800 u32 udp_checksum_failed:1;
801 u32 ip_checksum_failed:1;
802 u32 tcp_checksum_succeeded:1;
803 u32 udp_checksum_succeeded:1;
804 u32 ip_checksum_succeeded:1;
805 u32 loopback:1;
806 u32 tcp_checksum_value_invalid:1;
807 u32 ip_checksum_value_invalid:1;
808 } receive;
809 u32 value;
810 };
811};
812
813struct ndis_tcp_lso_info {
814 union {
815 struct {
816 u32 unused:30;
817 u32 type:1;
818 u32 reserved2:1;
819 } transmit;
820 struct {
821 u32 mss:20;
822 u32 tcp_header_offset:10;
823 u32 type:1;
824 u32 reserved2:1;
825 } lso_v1_transmit;
826 struct {
827 u32 tcp_payload:30;
828 u32 type:1;
829 u32 reserved2:1;
830 } lso_v1_transmit_complete;
831 struct {
832 u32 mss:20;
833 u32 tcp_header_offset:10;
834 u32 type:1;
835 u32 ip_version:1;
836 } lso_v2_transmit;
837 struct {
838 u32 reserved:30;
839 u32 type:1;
840 u32 reserved2:1;
841 } lso_v2_transmit_complete;
842 u32 value;
843 };
844};
845
846#define NDIS_VLAN_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
847 sizeof(struct ndis_pkt_8021q_info))
848
849#define NDIS_CSUM_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
850 sizeof(struct ndis_tcp_ip_checksum_info))
851
852#define NDIS_LSO_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
853 sizeof(struct ndis_tcp_lso_info))
854
855/* Format of Information buffer passed in a SetRequest for the OID */
856/* OID_GEN_RNDIS_CONFIG_PARAMETER. */
857struct rndis_config_parameter_info {
858 u32 parameter_name_offset;
859 u32 parameter_name_length;
860 u32 parameter_type;
861 u32 parameter_value_offset;
862 u32 parameter_value_length;
863};
864
865/* Values for ParameterType in struct rndis_config_parameter_info */
866#define RNDIS_CONFIG_PARAM_TYPE_INTEGER 0
867#define RNDIS_CONFIG_PARAM_TYPE_STRING 2
868
869/* CONDIS Miniport messages for connection oriented devices */
870/* that do not implement a call manager. */
871
872/* CoNdisMiniportCreateVc message */
873struct rcondis_mp_create_vc {
874 u32 req_id;
875 u32 ndis_vc_handle;
876};
877
878/* Response to CoNdisMiniportCreateVc */
879struct rcondis_mp_create_vc_complete {
880 u32 req_id;
881 u32 dev_vc_handle;
882 u32 status;
883};
884
885/* CoNdisMiniportDeleteVc message */
886struct rcondis_mp_delete_vc {
887 u32 req_id;
888 u32 dev_vc_handle;
889};
890
891/* Response to CoNdisMiniportDeleteVc */
892struct rcondis_mp_delete_vc_complete {
893 u32 req_id;
894 u32 status;
895};
896
897/* CoNdisMiniportQueryRequest message */
898struct rcondis_mp_query_request {
899 u32 req_id;
900 u32 request_type;
901 u32 oid;
902 u32 dev_vc_handle;
903 u32 info_buflen;
904 u32 info_buf_offset;
905};
906
907/* CoNdisMiniportSetRequest message */
908struct rcondis_mp_set_request {
909 u32 req_id;
910 u32 request_type;
911 u32 oid;
912 u32 dev_vc_handle;
913 u32 info_buflen;
914 u32 info_buf_offset;
915};
916
917/* CoNdisIndicateStatus message */
918struct rcondis_indicate_status {
919 u32 ndis_vc_handle;
920 u32 status;
921 u32 status_buflen;
922 u32 status_buf_offset;
923};
924
925/* CONDIS Call/VC parameters */
926struct rcondis_specific_parameters {
927 u32 parameter_type;
928 u32 parameter_length;
929 u32 parameter_lffset;
930};
931
932struct rcondis_media_parameters {
933 u32 flags;
934 u32 reserved1;
935 u32 reserved2;
936 struct rcondis_specific_parameters media_specific;
937};
938
939struct rndis_flowspec {
940 u32 token_rate;
941 u32 token_bucket_size;
942 u32 peak_bandwidth;
943 u32 latency;
944 u32 delay_variation;
945 u32 service_type;
946 u32 max_sdu_size;
947 u32 minimum_policed_size;
948};
949
950struct rcondis_call_manager_parameters {
951 struct rndis_flowspec transmit;
952 struct rndis_flowspec receive;
953 struct rcondis_specific_parameters call_mgr_specific;
954};
955
956/* CoNdisMiniportActivateVc message */
957struct rcondis_mp_activate_vc_request {
958 u32 req_id;
959 u32 flags;
960 u32 dev_vc_handle;
961 u32 media_params_offset;
962 u32 media_params_length;
963 u32 call_mgr_params_offset;
964 u32 call_mgr_params_length;
965};
966
967/* Response to CoNdisMiniportActivateVc */
968struct rcondis_mp_activate_vc_complete {
969 u32 req_id;
970 u32 status;
971};
972
973/* CoNdisMiniportDeactivateVc message */
974struct rcondis_mp_deactivate_vc_request {
975 u32 req_id;
976 u32 flags;
977 u32 dev_vc_handle;
978};
979
980/* Response to CoNdisMiniportDeactivateVc */
981struct rcondis_mp_deactivate_vc_complete {
982 u32 req_id;
983 u32 status;
984};
985
986
987/* union with all of the RNDIS messages */
988union rndis_message_container {
989 struct rndis_packet pkt;
990 struct rndis_initialize_request init_req;
991 struct rndis_halt_request halt_req;
992 struct rndis_query_request query_req;
993 struct rndis_set_request set_req;
994 struct rndis_reset_request reset_req;
995 struct rndis_keepalive_request keep_alive_req;
996 struct rndis_indicate_status indicate_status;
997 struct rndis_initialize_complete init_complete;
998 struct rndis_query_complete query_complete;
999 struct rndis_set_complete set_complete;
1000 struct rndis_reset_complete reset_complete;
1001 struct rndis_keepalive_complete keep_alive_complete;
1002 struct rcondis_mp_create_vc co_miniport_create_vc;
1003 struct rcondis_mp_delete_vc co_miniport_delete_vc;
1004 struct rcondis_indicate_status co_indicate_status;
1005 struct rcondis_mp_activate_vc_request co_miniport_activate_vc;
1006 struct rcondis_mp_deactivate_vc_request co_miniport_deactivate_vc;
1007 struct rcondis_mp_create_vc_complete co_miniport_create_vc_complete;
1008 struct rcondis_mp_delete_vc_complete co_miniport_delete_vc_complete;
1009 struct rcondis_mp_activate_vc_complete co_miniport_activate_vc_complete;
1010 struct rcondis_mp_deactivate_vc_complete
1011 co_miniport_deactivate_vc_complete;
1012};
1013
1014/* Remote NDIS message format */
1015struct rndis_message {
1016 u32 ndis_msg_type;
1017
1018 /* Total length of this message, from the beginning */
1019 /* of the sruct rndis_message, in bytes. */
1020 u32 msg_len;
1021
1022 /* Actual message */
1023 union rndis_message_container msg;
1024};
1025
1026
1027/* Handy macros */
1028
1029/* get the size of an RNDIS message. Pass in the message type, */
1030/* struct rndis_set_request, struct rndis_packet for example */
1031#define RNDIS_MESSAGE_SIZE(msg) \
1032 (sizeof(msg) + (sizeof(struct rndis_message) - \
1033 sizeof(union rndis_message_container)))
1034
1035/* get pointer to info buffer with message pointer */
1036#define MESSAGE_TO_INFO_BUFFER(msg) \
1037 (((unsigned char *)(msg)) + msg->info_buf_offset)
1038
1039/* get pointer to status buffer with message pointer */
1040#define MESSAGE_TO_STATUS_BUFFER(msg) \
1041 (((unsigned char *)(msg)) + msg->status_buf_offset)
1042
1043/* get pointer to OOBD buffer with message pointer */
1044#define MESSAGE_TO_OOBD_BUFFER(msg) \
1045 (((unsigned char *)(msg)) + msg->oob_data_offset)
1046
1047/* get pointer to data buffer with message pointer */
1048#define MESSAGE_TO_DATA_BUFFER(msg) \
1049 (((unsigned char *)(msg)) + msg->per_pkt_info_offset)
1050
1051/* get pointer to contained message from NDIS_MESSAGE pointer */
1052#define RNDIS_MESSAGE_PTR_TO_MESSAGE_PTR(rndis_msg) \
1053 ((void *) &rndis_msg->msg)
1054
1055/* get pointer to contained message from NDIS_MESSAGE pointer */
1056#define RNDIS_MESSAGE_RAW_PTR_TO_MESSAGE_PTR(rndis_msg) \
1057 ((void *) rndis_msg)
1058
1059
1060#define __struct_bcount(x)
1061
1062
1063
1064#define RNDIS_HEADER_SIZE (sizeof(struct rndis_message) - \
1065 sizeof(union rndis_message_container))
1066
1067#define NDIS_PACKET_TYPE_DIRECTED 0x00000001
1068#define NDIS_PACKET_TYPE_MULTICAST 0x00000002
1069#define NDIS_PACKET_TYPE_ALL_MULTICAST 0x00000004
1070#define NDIS_PACKET_TYPE_BROADCAST 0x00000008
1071#define NDIS_PACKET_TYPE_SOURCE_ROUTING 0x00000010
1072#define NDIS_PACKET_TYPE_PROMISCUOUS 0x00000020
1073#define NDIS_PACKET_TYPE_SMT 0x00000040
1074#define NDIS_PACKET_TYPE_ALL_LOCAL 0x00000080
1075#define NDIS_PACKET_TYPE_GROUP 0x00000100
1076#define NDIS_PACKET_TYPE_ALL_FUNCTIONAL 0x00000200
1077#define NDIS_PACKET_TYPE_FUNCTIONAL 0x00000400
1078#define NDIS_PACKET_TYPE_MAC_FRAME 0x00000800
1079
1080#define INFO_IPV4 2
1081#define INFO_IPV6 4
1082#define INFO_TCP 2
1083#define INFO_UDP 4
1084
1085#define TRANSPORT_INFO_NOT_IP 0
1086#define TRANSPORT_INFO_IPV4_TCP ((INFO_IPV4 << 16) | INFO_TCP)
1087#define TRANSPORT_INFO_IPV4_UDP ((INFO_IPV4 << 16) | INFO_UDP)
1088#define TRANSPORT_INFO_IPV6_TCP ((INFO_IPV6 << 16) | INFO_TCP)
1089#define TRANSPORT_INFO_IPV6_UDP ((INFO_IPV6 << 16) | INFO_UDP)
1090
1091
1092#endif /* _HYPERV_NET_H */
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
31struct 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
48struct 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
78struct 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
109struct 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
135struct 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 */
154struct 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
173struct 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
186enum rndis_device_state {
187 RNDIS_DEV_UNINITIALIZED = 0,
188 RNDIS_DEV_INITIALIZING,
189 RNDIS_DEV_INITIALIZED,
190 RNDIS_DEV_DATAINITIALIZED,
191};
192
193struct 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 */
214struct rndis_message;
215struct ndis_offload_params;
216struct netvsc_device;
217struct netvsc_channel;
218struct net_device_context;
219
220extern u32 netvsc_ring_bytes;
221
222struct netvsc_device *netvsc_device_add(struct hv_device *device,
223 const struct netvsc_device_info *info);
224int netvsc_alloc_recv_comp_ring(struct netvsc_device *net_device, u32 q_idx);
225void netvsc_device_remove(struct hv_device *device);
226int 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);
232void netvsc_linkstatus_callback(struct net_device *net,
233 struct rndis_message *resp,
234 void *data, u32 data_buflen);
235int netvsc_recv_callback(struct net_device *net,
236 struct netvsc_device *nvdev,
237 struct netvsc_channel *nvchan);
238void netvsc_channel_cb(void *context);
239int netvsc_poll(struct napi_struct *napi, int budget);
240
241void netvsc_xdp_xmit(struct sk_buff *skb, struct net_device *ndev);
242u32 netvsc_run_xdp(struct net_device *ndev, struct netvsc_channel *nvchan,
243 struct xdp_buff *xdp);
244unsigned int netvsc_xdp_fraglen(unsigned int len);
245struct bpf_prog *netvsc_xdp_get(struct netvsc_device *nvdev);
246int netvsc_xdp_set(struct net_device *dev, struct bpf_prog *prog,
247 struct netlink_ext_ack *extack,
248 struct netvsc_device *nvdev);
249int netvsc_vf_setxdp(struct net_device *vf_netdev, struct bpf_prog *prog);
250int netvsc_bpf(struct net_device *dev, struct netdev_bpf *bpf);
251int netvsc_ndoxdp_xmit(struct net_device *ndev, int n,
252 struct xdp_frame **frames, u32 flags);
253
254int rndis_set_subchannel(struct net_device *ndev,
255 struct netvsc_device *nvdev,
256 struct netvsc_device_info *dev_info);
257int rndis_filter_open(struct netvsc_device *nvdev);
258int rndis_filter_close(struct netvsc_device *nvdev);
259struct netvsc_device *rndis_filter_device_add(struct hv_device *dev,
260 struct netvsc_device_info *info);
261void rndis_filter_update(struct netvsc_device *nvdev);
262void rndis_filter_device_remove(struct hv_device *dev,
263 struct netvsc_device *nvdev);
264int rndis_filter_set_rss_param(struct rndis_device *rdev,
265 const u8 *key);
266int rndis_filter_set_offload_params(struct net_device *ndev,
267 struct netvsc_device *nvdev,
268 struct ndis_offload_params *req_offloads);
269int rndis_filter_receive(struct net_device *ndev,
270 struct netvsc_device *net_dev,
271 struct netvsc_channel *nvchan,
272 void *data, u32 buflen);
273
274int rndis_filter_set_device_mac(struct netvsc_device *ndev,
275 const char *mac);
276
277int 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
288enum {
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
366enum {
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
378struct 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 */
389struct 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 */
399struct nvsp_message_init_complete {
400 u32 negotiated_protocol_ver;
401 u32 max_mdl_chain_len;
402 u32 status;
403} __packed;
404
405union 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 */
416struct 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 */
425struct nvsp_1_message_send_receive_buffer {
426 u32 gpadl_handle;
427 u16 id;
428} __packed;
429
430struct 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 */
442struct 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 */
473struct 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 */
481struct 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 */
491struct 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 */
507struct 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 */
515struct 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 */
538struct nvsp_1_message_send_rndis_packet_complete {
539 u32 status;
540};
541
542union 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 */
563struct 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
579struct 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 */
586struct 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 */
597struct 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
610struct nvsp_2_free_rxbuf {
611 u64 recv_buf_id;
612} __packed;
613
614union 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
621struct 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
629enum nvsp_vm_datapath {
630 NVSP_DATAPATH_SYNTHETIC = 0,
631 NVSP_DATAPATH_VF,
632 NVSP_DATAPATH_MAX
633};
634
635struct nvsp_4_sw_datapath {
636 u32 active_datapath; /* active data path in VM */
637} __packed;
638
639union nvsp_4_message_uber {
640 struct nvsp_4_send_vf_association vf_assoc;
641 struct nvsp_4_sw_datapath active_dp;
642} __packed;
643
644enum nvsp_subchannel_operation {
645 NVSP_SUBCHANNEL_NONE = 0,
646 NVSP_SUBCHANNEL_ALLOCATE,
647 NVSP_SUBCHANNEL_MAX
648};
649
650struct nvsp_5_subchannel_request {
651 u32 op;
652 u32 num_subchannels;
653} __packed;
654
655struct nvsp_5_subchannel_complete {
656 u32 status;
657 u32 num_subchannels; /* Actual number of subchannels allocated */
658} __packed;
659
660struct 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
672union 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
678enum 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
691struct grp_affinity {
692 u64 mask;
693 u16 grp;
694 u16 reserved[3];
695} __packed;
696
697struct 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
771struct 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
812struct nvsp_6_pd_buf {
813 u32 region_offset;
814 u16 region_id;
815 u16 is_partial:1;
816 u16 reserved:15;
817} __packed;
818
819struct 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
828union 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
833union 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 */
843struct 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 */
897static 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
914struct 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
920struct recv_comp_data {
921 u64 tid; /* transaction id */
922 u32 status;
923};
924
925struct 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
933struct 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
949struct netvsc_stats_tx {
950 u64 packets;
951 u64 bytes;
952 u64 xdp_xmit;
953 struct u64_stats_sync syncp;
954};
955
956struct 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
967struct 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
981struct 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
992struct 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
1001struct 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 */
1015struct 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 /* completion variable to confirm vf association */
1055 struct completion vf_add;
1056 /* Is the current data path through the VF NIC? */
1057 bool data_path_is_vf;
1058
1059 /* Used to temporarily save the config info across hibernation */
1060 struct netvsc_device_info *saved_netvsc_dev_info;
1061};
1062
1063/* Azure hosts don't support non-TCP port numbers in hashing for fragmented
1064 * packets. We can use ethtool to change UDP hash level when necessary.
1065 */
1066static inline u32 netvsc_get_hash(struct sk_buff *skb,
1067 const struct net_device_context *ndc)
1068{
1069 struct flow_keys flow;
1070 u32 hash, pkt_proto = 0;
1071 static u32 hashrnd __read_mostly;
1072
1073 net_get_random_once(&hashrnd, sizeof(hashrnd));
1074
1075 if (!skb_flow_dissect_flow_keys(skb, &flow, 0))
1076 return 0;
1077
1078 switch (flow.basic.ip_proto) {
1079 case IPPROTO_TCP:
1080 if (flow.basic.n_proto == htons(ETH_P_IP))
1081 pkt_proto = HV_TCP4_L4HASH;
1082 else if (flow.basic.n_proto == htons(ETH_P_IPV6))
1083 pkt_proto = HV_TCP6_L4HASH;
1084
1085 break;
1086
1087 case IPPROTO_UDP:
1088 if (flow.basic.n_proto == htons(ETH_P_IP))
1089 pkt_proto = HV_UDP4_L4HASH;
1090 else if (flow.basic.n_proto == htons(ETH_P_IPV6))
1091 pkt_proto = HV_UDP6_L4HASH;
1092
1093 break;
1094 }
1095
1096 if (pkt_proto & ndc->l4_hash) {
1097 return skb_get_hash(skb);
1098 } else {
1099 if (flow.basic.n_proto == htons(ETH_P_IP))
1100 hash = jhash2((u32 *)&flow.addrs.v4addrs, 2, hashrnd);
1101 else if (flow.basic.n_proto == htons(ETH_P_IPV6))
1102 hash = jhash2((u32 *)&flow.addrs.v6addrs, 8, hashrnd);
1103 else
1104 return 0;
1105
1106 __skb_set_sw_hash(skb, hash, false);
1107 }
1108
1109 return hash;
1110}
1111
1112/* Per channel data */
1113struct netvsc_channel {
1114 struct vmbus_channel *channel;
1115 struct netvsc_device *net_device;
1116 void *recv_buf; /* buffer to copy packets out from the receive buffer */
1117 const struct vmpacket_descriptor *desc;
1118 struct napi_struct napi;
1119 struct multi_send_data msd;
1120 struct multi_recv_comp mrc;
1121 atomic_t queue_sends;
1122 struct nvsc_rsc rsc;
1123
1124 struct bpf_prog __rcu *bpf_prog;
1125 struct xdp_rxq_info xdp_rxq;
1126 bool xdp_flush;
1127
1128 struct netvsc_stats_tx tx_stats;
1129 struct netvsc_stats_rx rx_stats;
1130};
1131
1132/* Per netvsc device */
1133struct netvsc_device {
1134 u32 nvsp_version;
1135
1136 wait_queue_head_t wait_drain;
1137 bool destroy;
1138 bool tx_disable; /* if true, do not wake up queue again */
1139
1140 /* Receive buffer allocated by us but manages by NetVSP */
1141 void *recv_buf;
1142 void *recv_original_buf;
1143 u32 recv_buf_size; /* allocated bytes */
1144 struct vmbus_gpadl recv_buf_gpadl_handle;
1145 u32 recv_section_cnt;
1146 u32 recv_section_size;
1147 u32 recv_completion_cnt;
1148
1149 /* Send buffer allocated by us */
1150 void *send_buf;
1151 void *send_original_buf;
1152 u32 send_buf_size;
1153 struct vmbus_gpadl send_buf_gpadl_handle;
1154 u32 send_section_cnt;
1155 u32 send_section_size;
1156 unsigned long *send_section_map;
1157
1158 /* Used for NetVSP initialization protocol */
1159 struct completion channel_init_wait;
1160 struct nvsp_message channel_init_pkt;
1161
1162 struct nvsp_message revoke_packet;
1163
1164 u32 max_chn;
1165 u32 num_chn;
1166
1167 atomic_t open_chn;
1168 struct work_struct subchan_work;
1169 wait_queue_head_t subchan_open;
1170
1171 struct rndis_device *extension;
1172
1173 u32 max_pkt; /* max number of pkt in one send, e.g. 8 */
1174 u32 pkt_align; /* alignment bytes, e.g. 8 */
1175
1176 struct netvsc_channel chan_table[VRSS_CHANNEL_MAX];
1177
1178 struct rcu_head rcu;
1179};
1180
1181/* NdisInitialize message */
1182struct rndis_initialize_request {
1183 u32 req_id;
1184 u32 major_ver;
1185 u32 minor_ver;
1186 u32 max_xfer_size;
1187};
1188
1189/* Response to NdisInitialize */
1190struct rndis_initialize_complete {
1191 u32 req_id;
1192 u32 status;
1193 u32 major_ver;
1194 u32 minor_ver;
1195 u32 dev_flags;
1196 u32 medium;
1197 u32 max_pkt_per_msg;
1198 u32 max_xfer_size;
1199 u32 pkt_alignment_factor;
1200 u32 af_list_offset;
1201 u32 af_list_size;
1202};
1203
1204/* Call manager devices only: Information about an address family */
1205/* supported by the device is appended to the response to NdisInitialize. */
1206struct rndis_co_address_family {
1207 u32 address_family;
1208 u32 major_ver;
1209 u32 minor_ver;
1210};
1211
1212/* NdisHalt message */
1213struct rndis_halt_request {
1214 u32 req_id;
1215};
1216
1217/* NdisQueryRequest message */
1218struct rndis_query_request {
1219 u32 req_id;
1220 u32 oid;
1221 u32 info_buflen;
1222 u32 info_buf_offset;
1223 u32 dev_vc_handle;
1224};
1225
1226/* Response to NdisQueryRequest */
1227struct rndis_query_complete {
1228 u32 req_id;
1229 u32 status;
1230 u32 info_buflen;
1231 u32 info_buf_offset;
1232};
1233
1234/* NdisSetRequest message */
1235struct rndis_set_request {
1236 u32 req_id;
1237 u32 oid;
1238 u32 info_buflen;
1239 u32 info_buf_offset;
1240 u32 dev_vc_handle;
1241 u8 info_buf[];
1242};
1243
1244/* Response to NdisSetRequest */
1245struct rndis_set_complete {
1246 u32 req_id;
1247 u32 status;
1248};
1249
1250/* NdisReset message */
1251struct rndis_reset_request {
1252 u32 reserved;
1253};
1254
1255/* Response to NdisReset */
1256struct rndis_reset_complete {
1257 u32 status;
1258 u32 addressing_reset;
1259};
1260
1261/* NdisMIndicateStatus message */
1262struct rndis_indicate_status {
1263 u32 status;
1264 u32 status_buflen;
1265 u32 status_buf_offset;
1266};
1267
1268/* Diagnostic information passed as the status buffer in */
1269/* struct rndis_indicate_status messages signifying error conditions. */
1270struct rndis_diagnostic_info {
1271 u32 diag_status;
1272 u32 error_offset;
1273};
1274
1275/* NdisKeepAlive message */
1276struct rndis_keepalive_request {
1277 u32 req_id;
1278};
1279
1280/* Response to NdisKeepAlive */
1281struct rndis_keepalive_complete {
1282 u32 req_id;
1283 u32 status;
1284};
1285
1286/*
1287 * Data message. All Offset fields contain byte offsets from the beginning of
1288 * struct rndis_packet. All Length fields are in bytes. VcHandle is set
1289 * to 0 for connectionless data, otherwise it contains the VC handle.
1290 */
1291struct rndis_packet {
1292 u32 data_offset;
1293 u32 data_len;
1294 u32 oob_data_offset;
1295 u32 oob_data_len;
1296 u32 num_oob_data_elements;
1297 u32 per_pkt_info_offset;
1298 u32 per_pkt_info_len;
1299 u32 vc_handle;
1300 u32 reserved;
1301};
1302
1303/* Optional Out of Band data associated with a Data message. */
1304struct rndis_oobd {
1305 u32 size;
1306 u32 type;
1307 u32 class_info_offset;
1308};
1309
1310/* Packet extension field contents associated with a Data message. */
1311struct rndis_per_packet_info {
1312 u32 size;
1313 u32 type:31;
1314 u32 internal:1;
1315 u32 ppi_offset;
1316};
1317
1318enum ndis_per_pkt_info_type {
1319 TCPIP_CHKSUM_PKTINFO,
1320 IPSEC_PKTINFO,
1321 TCP_LARGESEND_PKTINFO,
1322 CLASSIFICATION_HANDLE_PKTINFO,
1323 NDIS_RESERVED,
1324 SG_LIST_PKTINFO,
1325 IEEE_8021Q_INFO,
1326 ORIGINAL_PKTINFO,
1327 PACKET_CANCEL_ID,
1328 NBL_HASH_VALUE = PACKET_CANCEL_ID,
1329 ORIGINAL_NET_BUFLIST,
1330 CACHED_NET_BUFLIST,
1331 SHORT_PKT_PADINFO,
1332 MAX_PER_PKT_INFO
1333};
1334
1335enum rndis_per_pkt_info_interal_type {
1336 RNDIS_PKTINFO_ID = 1,
1337 /* Add more members here */
1338
1339 RNDIS_PKTINFO_MAX
1340};
1341
1342#define RNDIS_PKTINFO_SUBALLOC BIT(0)
1343#define RNDIS_PKTINFO_1ST_FRAG BIT(1)
1344#define RNDIS_PKTINFO_LAST_FRAG BIT(2)
1345
1346#define RNDIS_PKTINFO_ID_V1 1
1347
1348struct rndis_pktinfo_id {
1349 u8 ver;
1350 u8 flag;
1351 u16 pkt_id;
1352};
1353
1354struct ndis_object_header {
1355 u8 type;
1356 u8 revision;
1357 u16 size;
1358};
1359
1360#define NDIS_OBJECT_TYPE_DEFAULT 0x80
1361#define NDIS_OFFLOAD_PARAMETERS_REVISION_3 3
1362#define NDIS_OFFLOAD_PARAMETERS_REVISION_2 2
1363#define NDIS_OFFLOAD_PARAMETERS_REVISION_1 1
1364
1365#define NDIS_OFFLOAD_PARAMETERS_NO_CHANGE 0
1366#define NDIS_OFFLOAD_PARAMETERS_LSOV2_DISABLED 1
1367#define NDIS_OFFLOAD_PARAMETERS_LSOV2_ENABLED 2
1368#define NDIS_OFFLOAD_PARAMETERS_LSOV1_ENABLED 2
1369#define NDIS_OFFLOAD_PARAMETERS_RSC_DISABLED 1
1370#define NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED 2
1371#define NDIS_OFFLOAD_PARAMETERS_TX_RX_DISABLED 1
1372#define NDIS_OFFLOAD_PARAMETERS_TX_ENABLED_RX_DISABLED 2
1373#define NDIS_OFFLOAD_PARAMETERS_RX_ENABLED_TX_DISABLED 3
1374#define NDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED 4
1375
1376#define NDIS_TCP_LARGE_SEND_OFFLOAD_V2_TYPE 1
1377#define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV4 0
1378#define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV6 1
1379
1380#define VERSION_4_OFFLOAD_SIZE 22
1381/*
1382 * New offload OIDs for NDIS 6
1383 */
1384#define OID_TCP_OFFLOAD_CURRENT_CONFIG 0xFC01020B /* query only */
1385#define OID_TCP_OFFLOAD_PARAMETERS 0xFC01020C /* set only */
1386#define OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020D/* query only */
1387#define OID_TCP_CONNECTION_OFFLOAD_CURRENT_CONFIG 0xFC01020E /* query only */
1388#define OID_TCP_CONNECTION_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020F /* query */
1389#define OID_OFFLOAD_ENCAPSULATION 0x0101010A /* set/query */
1390
1391/*
1392 * OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES
1393 * ndis_type: NDIS_OBJTYPE_OFFLOAD
1394 */
1395
1396#define NDIS_OFFLOAD_ENCAP_NONE 0x0000
1397#define NDIS_OFFLOAD_ENCAP_NULL 0x0001
1398#define NDIS_OFFLOAD_ENCAP_8023 0x0002
1399#define NDIS_OFFLOAD_ENCAP_8023PQ 0x0004
1400#define NDIS_OFFLOAD_ENCAP_8023PQ_OOB 0x0008
1401#define NDIS_OFFLOAD_ENCAP_RFC1483 0x0010
1402
1403struct ndis_csum_offload {
1404 u32 ip4_txenc;
1405 u32 ip4_txcsum;
1406#define NDIS_TXCSUM_CAP_IP4OPT 0x001
1407#define NDIS_TXCSUM_CAP_TCP4OPT 0x004
1408#define NDIS_TXCSUM_CAP_TCP4 0x010
1409#define NDIS_TXCSUM_CAP_UDP4 0x040
1410#define NDIS_TXCSUM_CAP_IP4 0x100
1411
1412#define NDIS_TXCSUM_ALL_TCP4 (NDIS_TXCSUM_CAP_TCP4 | NDIS_TXCSUM_CAP_TCP4OPT)
1413
1414 u32 ip4_rxenc;
1415 u32 ip4_rxcsum;
1416#define NDIS_RXCSUM_CAP_IP4OPT 0x001
1417#define NDIS_RXCSUM_CAP_TCP4OPT 0x004
1418#define NDIS_RXCSUM_CAP_TCP4 0x010
1419#define NDIS_RXCSUM_CAP_UDP4 0x040
1420#define NDIS_RXCSUM_CAP_IP4 0x100
1421 u32 ip6_txenc;
1422 u32 ip6_txcsum;
1423#define NDIS_TXCSUM_CAP_IP6EXT 0x001
1424#define NDIS_TXCSUM_CAP_TCP6OPT 0x004
1425#define NDIS_TXCSUM_CAP_TCP6 0x010
1426#define NDIS_TXCSUM_CAP_UDP6 0x040
1427 u32 ip6_rxenc;
1428 u32 ip6_rxcsum;
1429#define NDIS_RXCSUM_CAP_IP6EXT 0x001
1430#define NDIS_RXCSUM_CAP_TCP6OPT 0x004
1431#define NDIS_RXCSUM_CAP_TCP6 0x010
1432#define NDIS_RXCSUM_CAP_UDP6 0x040
1433
1434#define NDIS_TXCSUM_ALL_TCP6 (NDIS_TXCSUM_CAP_TCP6 | \
1435 NDIS_TXCSUM_CAP_TCP6OPT | \
1436 NDIS_TXCSUM_CAP_IP6EXT)
1437};
1438
1439struct ndis_lsov1_offload {
1440 u32 encap;
1441 u32 maxsize;
1442 u32 minsegs;
1443 u32 opts;
1444};
1445
1446struct ndis_ipsecv1_offload {
1447 u32 encap;
1448 u32 ah_esp;
1449 u32 xport_tun;
1450 u32 ip4_opts;
1451 u32 flags;
1452 u32 ip4_ah;
1453 u32 ip4_esp;
1454};
1455
1456struct ndis_lsov2_offload {
1457 u32 ip4_encap;
1458 u32 ip4_maxsz;
1459 u32 ip4_minsg;
1460 u32 ip6_encap;
1461 u32 ip6_maxsz;
1462 u32 ip6_minsg;
1463 u32 ip6_opts;
1464#define NDIS_LSOV2_CAP_IP6EXT 0x001
1465#define NDIS_LSOV2_CAP_TCP6OPT 0x004
1466
1467#define NDIS_LSOV2_CAP_IP6 (NDIS_LSOV2_CAP_IP6EXT | \
1468 NDIS_LSOV2_CAP_TCP6OPT)
1469};
1470
1471struct ndis_ipsecv2_offload {
1472 u32 encap;
1473 u8 ip6;
1474 u8 ip4opt;
1475 u8 ip6ext;
1476 u8 ah;
1477 u8 esp;
1478 u8 ah_esp;
1479 u8 xport;
1480 u8 tun;
1481 u8 xport_tun;
1482 u8 lso;
1483 u8 extseq;
1484 u32 udp_esp;
1485 u32 auth;
1486 u32 crypto;
1487 u32 sa_caps;
1488};
1489
1490struct ndis_rsc_offload {
1491 u8 ip4;
1492 u8 ip6;
1493};
1494
1495struct ndis_encap_offload {
1496 u32 flags;
1497 u32 maxhdr;
1498};
1499
1500struct ndis_offload {
1501 struct ndis_object_header header;
1502 struct ndis_csum_offload csum;
1503 struct ndis_lsov1_offload lsov1;
1504 struct ndis_ipsecv1_offload ipsecv1;
1505 struct ndis_lsov2_offload lsov2;
1506 u32 flags;
1507 /* NDIS >= 6.1 */
1508 struct ndis_ipsecv2_offload ipsecv2;
1509 /* NDIS >= 6.30 */
1510 struct ndis_rsc_offload rsc;
1511 struct ndis_encap_offload encap_gre;
1512};
1513
1514#define NDIS_OFFLOAD_SIZE sizeof(struct ndis_offload)
1515#define NDIS_OFFLOAD_SIZE_6_0 offsetof(struct ndis_offload, ipsecv2)
1516#define NDIS_OFFLOAD_SIZE_6_1 offsetof(struct ndis_offload, rsc)
1517
1518struct ndis_offload_params {
1519 struct ndis_object_header header;
1520 u8 ip_v4_csum;
1521 u8 tcp_ip_v4_csum;
1522 u8 udp_ip_v4_csum;
1523 u8 tcp_ip_v6_csum;
1524 u8 udp_ip_v6_csum;
1525 u8 lso_v1;
1526 u8 ip_sec_v1;
1527 u8 lso_v2_ipv4;
1528 u8 lso_v2_ipv6;
1529 u8 tcp_connection_ip_v4;
1530 u8 tcp_connection_ip_v6;
1531 u32 flags;
1532 u8 ip_sec_v2;
1533 u8 ip_sec_v2_ip_v4;
1534 struct {
1535 u8 rsc_ip_v4;
1536 u8 rsc_ip_v6;
1537 };
1538 struct {
1539 u8 encapsulated_packet_task_offload;
1540 u8 encapsulation_types;
1541 };
1542};
1543
1544struct ndis_tcp_lso_info {
1545 union {
1546 struct {
1547 u32 unused:30;
1548 u32 type:1;
1549 u32 reserved2:1;
1550 } transmit;
1551 struct {
1552 u32 mss:20;
1553 u32 tcp_header_offset:10;
1554 u32 type:1;
1555 u32 reserved2:1;
1556 } lso_v1_transmit;
1557 struct {
1558 u32 tcp_payload:30;
1559 u32 type:1;
1560 u32 reserved2:1;
1561 } lso_v1_transmit_complete;
1562 struct {
1563 u32 mss:20;
1564 u32 tcp_header_offset:10;
1565 u32 type:1;
1566 u32 ip_version:1;
1567 } lso_v2_transmit;
1568 struct {
1569 u32 reserved:30;
1570 u32 type:1;
1571 u32 reserved2:1;
1572 } lso_v2_transmit_complete;
1573 u32 value;
1574 };
1575};
1576
1577#define NDIS_VLAN_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1578 sizeof(struct ndis_pkt_8021q_info))
1579
1580#define NDIS_CSUM_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1581 sizeof(struct ndis_tcp_ip_checksum_info))
1582
1583#define NDIS_LSO_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1584 sizeof(struct ndis_tcp_lso_info))
1585
1586#define NDIS_HASH_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1587 sizeof(u32))
1588
1589/* Total size of all PPI data */
1590#define NDIS_ALL_PPI_SIZE (NDIS_VLAN_PPI_SIZE + NDIS_CSUM_PPI_SIZE + \
1591 NDIS_LSO_PPI_SIZE + NDIS_HASH_PPI_SIZE)
1592
1593/* Format of Information buffer passed in a SetRequest for the OID */
1594/* OID_GEN_RNDIS_CONFIG_PARAMETER. */
1595struct rndis_config_parameter_info {
1596 u32 parameter_name_offset;
1597 u32 parameter_name_length;
1598 u32 parameter_type;
1599 u32 parameter_value_offset;
1600 u32 parameter_value_length;
1601};
1602
1603/* Values for ParameterType in struct rndis_config_parameter_info */
1604#define RNDIS_CONFIG_PARAM_TYPE_INTEGER 0
1605#define RNDIS_CONFIG_PARAM_TYPE_STRING 2
1606
1607/* CONDIS Miniport messages for connection oriented devices */
1608/* that do not implement a call manager. */
1609
1610/* CoNdisMiniportCreateVc message */
1611struct rcondis_mp_create_vc {
1612 u32 req_id;
1613 u32 ndis_vc_handle;
1614};
1615
1616/* Response to CoNdisMiniportCreateVc */
1617struct rcondis_mp_create_vc_complete {
1618 u32 req_id;
1619 u32 dev_vc_handle;
1620 u32 status;
1621};
1622
1623/* CoNdisMiniportDeleteVc message */
1624struct rcondis_mp_delete_vc {
1625 u32 req_id;
1626 u32 dev_vc_handle;
1627};
1628
1629/* Response to CoNdisMiniportDeleteVc */
1630struct rcondis_mp_delete_vc_complete {
1631 u32 req_id;
1632 u32 status;
1633};
1634
1635/* CoNdisMiniportQueryRequest message */
1636struct rcondis_mp_query_request {
1637 u32 req_id;
1638 u32 request_type;
1639 u32 oid;
1640 u32 dev_vc_handle;
1641 u32 info_buflen;
1642 u32 info_buf_offset;
1643};
1644
1645/* CoNdisMiniportSetRequest message */
1646struct rcondis_mp_set_request {
1647 u32 req_id;
1648 u32 request_type;
1649 u32 oid;
1650 u32 dev_vc_handle;
1651 u32 info_buflen;
1652 u32 info_buf_offset;
1653};
1654
1655/* CoNdisIndicateStatus message */
1656struct rcondis_indicate_status {
1657 u32 ndis_vc_handle;
1658 u32 status;
1659 u32 status_buflen;
1660 u32 status_buf_offset;
1661};
1662
1663/* CONDIS Call/VC parameters */
1664struct rcondis_specific_parameters {
1665 u32 parameter_type;
1666 u32 parameter_length;
1667 u32 parameter_lffset;
1668};
1669
1670struct rcondis_media_parameters {
1671 u32 flags;
1672 u32 reserved1;
1673 u32 reserved2;
1674 struct rcondis_specific_parameters media_specific;
1675};
1676
1677struct rndis_flowspec {
1678 u32 token_rate;
1679 u32 token_bucket_size;
1680 u32 peak_bandwidth;
1681 u32 latency;
1682 u32 delay_variation;
1683 u32 service_type;
1684 u32 max_sdu_size;
1685 u32 minimum_policed_size;
1686};
1687
1688struct rcondis_call_manager_parameters {
1689 struct rndis_flowspec transmit;
1690 struct rndis_flowspec receive;
1691 struct rcondis_specific_parameters call_mgr_specific;
1692};
1693
1694/* CoNdisMiniportActivateVc message */
1695struct rcondis_mp_activate_vc_request {
1696 u32 req_id;
1697 u32 flags;
1698 u32 dev_vc_handle;
1699 u32 media_params_offset;
1700 u32 media_params_length;
1701 u32 call_mgr_params_offset;
1702 u32 call_mgr_params_length;
1703};
1704
1705/* Response to CoNdisMiniportActivateVc */
1706struct rcondis_mp_activate_vc_complete {
1707 u32 req_id;
1708 u32 status;
1709};
1710
1711/* CoNdisMiniportDeactivateVc message */
1712struct rcondis_mp_deactivate_vc_request {
1713 u32 req_id;
1714 u32 flags;
1715 u32 dev_vc_handle;
1716};
1717
1718/* Response to CoNdisMiniportDeactivateVc */
1719struct rcondis_mp_deactivate_vc_complete {
1720 u32 req_id;
1721 u32 status;
1722};
1723
1724
1725/* union with all of the RNDIS messages */
1726union rndis_message_container {
1727 struct rndis_packet pkt;
1728 struct rndis_initialize_request init_req;
1729 struct rndis_halt_request halt_req;
1730 struct rndis_query_request query_req;
1731 struct rndis_set_request set_req;
1732 struct rndis_reset_request reset_req;
1733 struct rndis_keepalive_request keep_alive_req;
1734 struct rndis_indicate_status indicate_status;
1735 struct rndis_initialize_complete init_complete;
1736 struct rndis_query_complete query_complete;
1737 struct rndis_set_complete set_complete;
1738 struct rndis_reset_complete reset_complete;
1739 struct rndis_keepalive_complete keep_alive_complete;
1740 struct rcondis_mp_create_vc co_miniport_create_vc;
1741 struct rcondis_mp_delete_vc co_miniport_delete_vc;
1742 struct rcondis_indicate_status co_indicate_status;
1743 struct rcondis_mp_activate_vc_request co_miniport_activate_vc;
1744 struct rcondis_mp_deactivate_vc_request co_miniport_deactivate_vc;
1745 struct rcondis_mp_create_vc_complete co_miniport_create_vc_complete;
1746 struct rcondis_mp_delete_vc_complete co_miniport_delete_vc_complete;
1747 struct rcondis_mp_activate_vc_complete co_miniport_activate_vc_complete;
1748 struct rcondis_mp_deactivate_vc_complete
1749 co_miniport_deactivate_vc_complete;
1750};
1751
1752/* Remote NDIS message format */
1753struct rndis_message {
1754 u32 ndis_msg_type;
1755
1756 /* Total length of this message, from the beginning */
1757 /* of the struct rndis_message, in bytes. */
1758 u32 msg_len;
1759
1760 /* Actual message */
1761 union rndis_message_container msg;
1762};
1763
1764
1765/* Handy macros */
1766
1767/* get the size of an RNDIS message. Pass in the message type, */
1768/* struct rndis_set_request, struct rndis_packet for example */
1769#define RNDIS_MESSAGE_SIZE(msg) \
1770 (sizeof(msg) + (sizeof(struct rndis_message) - \
1771 sizeof(union rndis_message_container)))
1772
1773#define RNDIS_HEADER_SIZE (sizeof(struct rndis_message) - \
1774 sizeof(union rndis_message_container))
1775
1776#define RNDIS_AND_PPI_SIZE (sizeof(struct rndis_message) + NDIS_ALL_PPI_SIZE)
1777
1778#define NDIS_PACKET_TYPE_DIRECTED 0x00000001
1779#define NDIS_PACKET_TYPE_MULTICAST 0x00000002
1780#define NDIS_PACKET_TYPE_ALL_MULTICAST 0x00000004
1781#define NDIS_PACKET_TYPE_BROADCAST 0x00000008
1782#define NDIS_PACKET_TYPE_SOURCE_ROUTING 0x00000010
1783#define NDIS_PACKET_TYPE_PROMISCUOUS 0x00000020
1784#define NDIS_PACKET_TYPE_SMT 0x00000040
1785#define NDIS_PACKET_TYPE_ALL_LOCAL 0x00000080
1786#define NDIS_PACKET_TYPE_GROUP 0x00000100
1787#define NDIS_PACKET_TYPE_ALL_FUNCTIONAL 0x00000200
1788#define NDIS_PACKET_TYPE_FUNCTIONAL 0x00000400
1789#define NDIS_PACKET_TYPE_MAC_FRAME 0x00000800
1790
1791#define TRANSPORT_INFO_NOT_IP 0
1792#define TRANSPORT_INFO_IPV4_TCP 0x01
1793#define TRANSPORT_INFO_IPV4_UDP 0x02
1794#define TRANSPORT_INFO_IPV6_TCP 0x10
1795#define TRANSPORT_INFO_IPV6_UDP 0x20
1796
1797#define RETRY_US_LO 5000
1798#define RETRY_US_HI 10000
1799#define RETRY_MAX 2000 /* >10 sec */
1800
1801void netvsc_dma_unmap(struct hv_device *hv_dev,
1802 struct hv_netvsc_packet *packet);
1803#endif /* _HYPERV_NET_H */