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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/* RSS related */
32#define OID_GEN_RECEIVE_SCALE_CAPABILITIES 0x00010203 /* query only */
33#define OID_GEN_RECEIVE_SCALE_PARAMETERS 0x00010204 /* query and set */
34
35#define NDIS_OBJECT_TYPE_RSS_CAPABILITIES 0x88
36#define NDIS_OBJECT_TYPE_RSS_PARAMETERS 0x89
37
38#define NDIS_RECEIVE_SCALE_CAPABILITIES_REVISION_2 2
39#define NDIS_RECEIVE_SCALE_PARAMETERS_REVISION_2 2
40
41struct ndis_obj_header {
42 u8 type;
43 u8 rev;
44 u16 size;
45} __packed;
46
47/* ndis_recv_scale_cap/cap_flag */
48#define NDIS_RSS_CAPS_MESSAGE_SIGNALED_INTERRUPTS 0x01000000
49#define NDIS_RSS_CAPS_CLASSIFICATION_AT_ISR 0x02000000
50#define NDIS_RSS_CAPS_CLASSIFICATION_AT_DPC 0x04000000
51#define NDIS_RSS_CAPS_USING_MSI_X 0x08000000
52#define NDIS_RSS_CAPS_RSS_AVAILABLE_ON_PORTS 0x10000000
53#define NDIS_RSS_CAPS_SUPPORTS_MSI_X 0x20000000
54#define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV4 0x00000100
55#define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV6 0x00000200
56#define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV6_EX 0x00000400
57
58struct ndis_recv_scale_cap { /* NDIS_RECEIVE_SCALE_CAPABILITIES */
59 struct ndis_obj_header hdr;
60 u32 cap_flag;
61 u32 num_int_msg;
62 u32 num_recv_que;
63 u16 num_indirect_tabent;
64} __packed;
65
66
67/* ndis_recv_scale_param flags */
68#define NDIS_RSS_PARAM_FLAG_BASE_CPU_UNCHANGED 0x0001
69#define NDIS_RSS_PARAM_FLAG_HASH_INFO_UNCHANGED 0x0002
70#define NDIS_RSS_PARAM_FLAG_ITABLE_UNCHANGED 0x0004
71#define NDIS_RSS_PARAM_FLAG_HASH_KEY_UNCHANGED 0x0008
72#define NDIS_RSS_PARAM_FLAG_DISABLE_RSS 0x0010
73
74/* Hash info bits */
75#define NDIS_HASH_FUNC_TOEPLITZ 0x00000001
76#define NDIS_HASH_IPV4 0x00000100
77#define NDIS_HASH_TCP_IPV4 0x00000200
78#define NDIS_HASH_IPV6 0x00000400
79#define NDIS_HASH_IPV6_EX 0x00000800
80#define NDIS_HASH_TCP_IPV6 0x00001000
81#define NDIS_HASH_TCP_IPV6_EX 0x00002000
82
83#define NDIS_RSS_INDIRECTION_TABLE_MAX_SIZE_REVISION_2 (128 * 4)
84#define NDIS_RSS_HASH_SECRET_KEY_MAX_SIZE_REVISION_2 40
85
86#define ITAB_NUM 128
87
88struct ndis_recv_scale_param { /* NDIS_RECEIVE_SCALE_PARAMETERS */
89 struct ndis_obj_header hdr;
90
91 /* Qualifies the rest of the information */
92 u16 flag;
93
94 /* The base CPU number to do receive processing. not used */
95 u16 base_cpu_number;
96
97 /* This describes the hash function and type being enabled */
98 u32 hashinfo;
99
100 /* The size of indirection table array */
101 u16 indirect_tabsize;
102
103 /* The offset of the indirection table from the beginning of this
104 * structure
105 */
106 u32 indirect_taboffset;
107
108 /* The size of the hash secret key */
109 u16 hashkey_size;
110
111 /* The offset of the secret key from the beginning of this structure */
112 u32 kashkey_offset;
113
114 u32 processor_masks_offset;
115 u32 num_processor_masks;
116 u32 processor_masks_entry_size;
117};
118
119/* Fwd declaration */
120struct ndis_tcp_ip_checksum_info;
121
122/*
123 * Represent netvsc packet which contains 1 RNDIS and 1 ethernet frame
124 * within the RNDIS
125 *
126 * The size of this structure is less than 48 bytes and we can now
127 * place this structure in the skb->cb field.
128 */
129struct hv_netvsc_packet {
130 /* Bookkeeping stuff */
131 u8 cp_partial; /* partial copy into send buffer */
132
133 u8 rmsg_size; /* RNDIS header and PPI size */
134 u8 rmsg_pgcnt; /* page count of RNDIS header and PPI */
135 u8 page_buf_cnt;
136
137 u16 q_idx;
138 u32 send_buf_index;
139
140 u32 total_data_buflen;
141};
142
143struct netvsc_device_info {
144 unsigned char mac_adr[ETH_ALEN];
145 bool link_state; /* 0 - link up, 1 - link down */
146 int ring_size;
147 u32 max_num_vrss_chns;
148 u32 num_chn;
149};
150
151enum rndis_device_state {
152 RNDIS_DEV_UNINITIALIZED = 0,
153 RNDIS_DEV_INITIALIZING,
154 RNDIS_DEV_INITIALIZED,
155 RNDIS_DEV_DATAINITIALIZED,
156};
157
158struct rndis_device {
159 struct net_device *ndev;
160
161 enum rndis_device_state state;
162 bool link_state;
163 atomic_t new_req_id;
164
165 spinlock_t request_lock;
166 struct list_head req_list;
167
168 unsigned char hw_mac_adr[ETH_ALEN];
169};
170
171
172/* Interface */
173struct rndis_message;
174struct netvsc_device;
175int netvsc_device_add(struct hv_device *device, void *additional_info);
176void netvsc_device_remove(struct hv_device *device);
177int netvsc_send(struct hv_device *device,
178 struct hv_netvsc_packet *packet,
179 struct rndis_message *rndis_msg,
180 struct hv_page_buffer **page_buffer,
181 struct sk_buff *skb);
182void netvsc_linkstatus_callback(struct hv_device *device_obj,
183 struct rndis_message *resp);
184int netvsc_recv_callback(struct hv_device *device_obj,
185 struct hv_netvsc_packet *packet,
186 void **data,
187 struct ndis_tcp_ip_checksum_info *csum_info,
188 struct vmbus_channel *channel,
189 u16 vlan_tci);
190void netvsc_channel_cb(void *context);
191int rndis_filter_open(struct netvsc_device *nvdev);
192int rndis_filter_close(struct netvsc_device *nvdev);
193int rndis_filter_device_add(struct hv_device *dev,
194 void *additional_info);
195void rndis_filter_device_remove(struct hv_device *dev);
196int rndis_filter_receive(struct hv_device *dev,
197 struct hv_netvsc_packet *pkt,
198 void **data,
199 struct vmbus_channel *channel);
200
201int rndis_filter_set_packet_filter(struct rndis_device *dev, u32 new_filter);
202int rndis_filter_set_device_mac(struct net_device *ndev, char *mac);
203
204void netvsc_switch_datapath(struct net_device *nv_dev, bool vf);
205
206#define NVSP_INVALID_PROTOCOL_VERSION ((u32)0xFFFFFFFF)
207
208#define NVSP_PROTOCOL_VERSION_1 2
209#define NVSP_PROTOCOL_VERSION_2 0x30002
210#define NVSP_PROTOCOL_VERSION_4 0x40000
211#define NVSP_PROTOCOL_VERSION_5 0x50000
212
213enum {
214 NVSP_MSG_TYPE_NONE = 0,
215
216 /* Init Messages */
217 NVSP_MSG_TYPE_INIT = 1,
218 NVSP_MSG_TYPE_INIT_COMPLETE = 2,
219
220 NVSP_VERSION_MSG_START = 100,
221
222 /* Version 1 Messages */
223 NVSP_MSG1_TYPE_SEND_NDIS_VER = NVSP_VERSION_MSG_START,
224
225 NVSP_MSG1_TYPE_SEND_RECV_BUF,
226 NVSP_MSG1_TYPE_SEND_RECV_BUF_COMPLETE,
227 NVSP_MSG1_TYPE_REVOKE_RECV_BUF,
228
229 NVSP_MSG1_TYPE_SEND_SEND_BUF,
230 NVSP_MSG1_TYPE_SEND_SEND_BUF_COMPLETE,
231 NVSP_MSG1_TYPE_REVOKE_SEND_BUF,
232
233 NVSP_MSG1_TYPE_SEND_RNDIS_PKT,
234 NVSP_MSG1_TYPE_SEND_RNDIS_PKT_COMPLETE,
235
236 /* Version 2 messages */
237 NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF,
238 NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF_COMP,
239 NVSP_MSG2_TYPE_REVOKE_CHIMNEY_DELEGATED_BUF,
240
241 NVSP_MSG2_TYPE_RESUME_CHIMNEY_RX_INDICATION,
242
243 NVSP_MSG2_TYPE_TERMINATE_CHIMNEY,
244 NVSP_MSG2_TYPE_TERMINATE_CHIMNEY_COMP,
245
246 NVSP_MSG2_TYPE_INDICATE_CHIMNEY_EVENT,
247
248 NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT,
249 NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT_COMP,
250
251 NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ,
252 NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ_COMP,
253
254 NVSP_MSG2_TYPE_ALLOC_RXBUF,
255 NVSP_MSG2_TYPE_ALLOC_RXBUF_COMP,
256
257 NVSP_MSG2_TYPE_FREE_RXBUF,
258
259 NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT,
260 NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT_COMP,
261
262 NVSP_MSG2_TYPE_SEND_NDIS_CONFIG,
263
264 NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE,
265 NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP,
266
267 NVSP_MSG2_MAX = NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP,
268
269 /* Version 4 messages */
270 NVSP_MSG4_TYPE_SEND_VF_ASSOCIATION,
271 NVSP_MSG4_TYPE_SWITCH_DATA_PATH,
272 NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED,
273
274 NVSP_MSG4_MAX = NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED,
275
276 /* Version 5 messages */
277 NVSP_MSG5_TYPE_OID_QUERY_EX,
278 NVSP_MSG5_TYPE_OID_QUERY_EX_COMP,
279 NVSP_MSG5_TYPE_SUBCHANNEL,
280 NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE,
281
282 NVSP_MSG5_MAX = NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE,
283};
284
285enum {
286 NVSP_STAT_NONE = 0,
287 NVSP_STAT_SUCCESS,
288 NVSP_STAT_FAIL,
289 NVSP_STAT_PROTOCOL_TOO_NEW,
290 NVSP_STAT_PROTOCOL_TOO_OLD,
291 NVSP_STAT_INVALID_RNDIS_PKT,
292 NVSP_STAT_BUSY,
293 NVSP_STAT_PROTOCOL_UNSUPPORTED,
294 NVSP_STAT_MAX,
295};
296
297struct nvsp_message_header {
298 u32 msg_type;
299};
300
301/* Init Messages */
302
303/*
304 * This message is used by the VSC to initialize the channel after the channels
305 * has been opened. This message should never include anything other then
306 * versioning (i.e. this message will be the same for ever).
307 */
308struct nvsp_message_init {
309 u32 min_protocol_ver;
310 u32 max_protocol_ver;
311} __packed;
312
313/*
314 * This message is used by the VSP to complete the initialization of the
315 * channel. This message should never include anything other then versioning
316 * (i.e. this message will be the same for ever).
317 */
318struct nvsp_message_init_complete {
319 u32 negotiated_protocol_ver;
320 u32 max_mdl_chain_len;
321 u32 status;
322} __packed;
323
324union nvsp_message_init_uber {
325 struct nvsp_message_init init;
326 struct nvsp_message_init_complete init_complete;
327} __packed;
328
329/* Version 1 Messages */
330
331/*
332 * This message is used by the VSC to send the NDIS version to the VSP. The VSP
333 * can use this information when handling OIDs sent by the VSC.
334 */
335struct nvsp_1_message_send_ndis_version {
336 u32 ndis_major_ver;
337 u32 ndis_minor_ver;
338} __packed;
339
340/*
341 * This message is used by the VSC to send a receive buffer to the VSP. The VSP
342 * can then use the receive buffer to send data to the VSC.
343 */
344struct nvsp_1_message_send_receive_buffer {
345 u32 gpadl_handle;
346 u16 id;
347} __packed;
348
349struct nvsp_1_receive_buffer_section {
350 u32 offset;
351 u32 sub_alloc_size;
352 u32 num_sub_allocs;
353 u32 end_offset;
354} __packed;
355
356/*
357 * This message is used by the VSP to acknowledge a receive buffer send by the
358 * VSC. This message must be sent by the VSP before the VSP uses the receive
359 * buffer.
360 */
361struct nvsp_1_message_send_receive_buffer_complete {
362 u32 status;
363 u32 num_sections;
364
365 /*
366 * The receive buffer is split into two parts, a large suballocation
367 * section and a small suballocation section. These sections are then
368 * suballocated by a certain size.
369 */
370
371 /*
372 * For example, the following break up of the receive buffer has 6
373 * large suballocations and 10 small suballocations.
374 */
375
376 /*
377 * | Large Section | | Small Section |
378 * ------------------------------------------------------------
379 * | | | | | | | | | | | | | | | | | |
380 * | |
381 * LargeOffset SmallOffset
382 */
383
384 struct nvsp_1_receive_buffer_section sections[1];
385} __packed;
386
387/*
388 * This message is sent by the VSC to revoke the receive buffer. After the VSP
389 * completes this transaction, the vsp should never use the receive buffer
390 * again.
391 */
392struct nvsp_1_message_revoke_receive_buffer {
393 u16 id;
394};
395
396/*
397 * This message is used by the VSC to send a send buffer to the VSP. The VSC
398 * can then use the send buffer to send data to the VSP.
399 */
400struct nvsp_1_message_send_send_buffer {
401 u32 gpadl_handle;
402 u16 id;
403} __packed;
404
405/*
406 * This message is used by the VSP to acknowledge a send buffer sent by the
407 * VSC. This message must be sent by the VSP before the VSP uses the sent
408 * buffer.
409 */
410struct nvsp_1_message_send_send_buffer_complete {
411 u32 status;
412
413 /*
414 * The VSC gets to choose the size of the send buffer and the VSP gets
415 * to choose the sections size of the buffer. This was done to enable
416 * dynamic reconfigurations when the cost of GPA-direct buffers
417 * decreases.
418 */
419 u32 section_size;
420} __packed;
421
422/*
423 * This message is sent by the VSC to revoke the send buffer. After the VSP
424 * completes this transaction, the vsp should never use the send buffer again.
425 */
426struct nvsp_1_message_revoke_send_buffer {
427 u16 id;
428};
429
430/*
431 * This message is used by both the VSP and the VSC to send a RNDIS message to
432 * the opposite channel endpoint.
433 */
434struct nvsp_1_message_send_rndis_packet {
435 /*
436 * This field is specified by RNDIS. They assume there's two different
437 * channels of communication. However, the Network VSP only has one.
438 * Therefore, the channel travels with the RNDIS packet.
439 */
440 u32 channel_type;
441
442 /*
443 * This field is used to send part or all of the data through a send
444 * buffer. This values specifies an index into the send buffer. If the
445 * index is 0xFFFFFFFF, then the send buffer is not being used and all
446 * of the data was sent through other VMBus mechanisms.
447 */
448 u32 send_buf_section_index;
449 u32 send_buf_section_size;
450} __packed;
451
452/*
453 * This message is used by both the VSP and the VSC to complete a RNDIS message
454 * to the opposite channel endpoint. At this point, the initiator of this
455 * message cannot use any resources associated with the original RNDIS packet.
456 */
457struct nvsp_1_message_send_rndis_packet_complete {
458 u32 status;
459};
460
461union nvsp_1_message_uber {
462 struct nvsp_1_message_send_ndis_version send_ndis_ver;
463
464 struct nvsp_1_message_send_receive_buffer send_recv_buf;
465 struct nvsp_1_message_send_receive_buffer_complete
466 send_recv_buf_complete;
467 struct nvsp_1_message_revoke_receive_buffer revoke_recv_buf;
468
469 struct nvsp_1_message_send_send_buffer send_send_buf;
470 struct nvsp_1_message_send_send_buffer_complete send_send_buf_complete;
471 struct nvsp_1_message_revoke_send_buffer revoke_send_buf;
472
473 struct nvsp_1_message_send_rndis_packet send_rndis_pkt;
474 struct nvsp_1_message_send_rndis_packet_complete
475 send_rndis_pkt_complete;
476} __packed;
477
478
479/*
480 * Network VSP protocol version 2 messages:
481 */
482struct nvsp_2_vsc_capability {
483 union {
484 u64 data;
485 struct {
486 u64 vmq:1;
487 u64 chimney:1;
488 u64 sriov:1;
489 u64 ieee8021q:1;
490 u64 correlation_id:1;
491 u64 teaming:1;
492 };
493 };
494} __packed;
495
496struct nvsp_2_send_ndis_config {
497 u32 mtu;
498 u32 reserved;
499 struct nvsp_2_vsc_capability capability;
500} __packed;
501
502/* Allocate receive buffer */
503struct nvsp_2_alloc_rxbuf {
504 /* Allocation ID to match the allocation request and response */
505 u32 alloc_id;
506
507 /* Length of the VM shared memory receive buffer that needs to
508 * be allocated
509 */
510 u32 len;
511} __packed;
512
513/* Allocate receive buffer complete */
514struct nvsp_2_alloc_rxbuf_comp {
515 /* The NDIS_STATUS code for buffer allocation */
516 u32 status;
517
518 u32 alloc_id;
519
520 /* GPADL handle for the allocated receive buffer */
521 u32 gpadl_handle;
522
523 /* Receive buffer ID */
524 u64 recv_buf_id;
525} __packed;
526
527struct nvsp_2_free_rxbuf {
528 u64 recv_buf_id;
529} __packed;
530
531union nvsp_2_message_uber {
532 struct nvsp_2_send_ndis_config send_ndis_config;
533 struct nvsp_2_alloc_rxbuf alloc_rxbuf;
534 struct nvsp_2_alloc_rxbuf_comp alloc_rxbuf_comp;
535 struct nvsp_2_free_rxbuf free_rxbuf;
536} __packed;
537
538struct nvsp_4_send_vf_association {
539 /* 1: allocated, serial number is valid. 0: not allocated */
540 u32 allocated;
541
542 /* Serial number of the VF to team with */
543 u32 serial;
544} __packed;
545
546enum nvsp_vm_datapath {
547 NVSP_DATAPATH_SYNTHETIC = 0,
548 NVSP_DATAPATH_VF,
549 NVSP_DATAPATH_MAX
550};
551
552struct nvsp_4_sw_datapath {
553 u32 active_datapath; /* active data path in VM */
554} __packed;
555
556union nvsp_4_message_uber {
557 struct nvsp_4_send_vf_association vf_assoc;
558 struct nvsp_4_sw_datapath active_dp;
559} __packed;
560
561enum nvsp_subchannel_operation {
562 NVSP_SUBCHANNEL_NONE = 0,
563 NVSP_SUBCHANNEL_ALLOCATE,
564 NVSP_SUBCHANNEL_MAX
565};
566
567struct nvsp_5_subchannel_request {
568 u32 op;
569 u32 num_subchannels;
570} __packed;
571
572struct nvsp_5_subchannel_complete {
573 u32 status;
574 u32 num_subchannels; /* Actual number of subchannels allocated */
575} __packed;
576
577struct nvsp_5_send_indirect_table {
578 /* The number of entries in the send indirection table */
579 u32 count;
580
581 /* The offset of the send indirection table from top of this struct.
582 * The send indirection table tells which channel to put the send
583 * traffic on. Each entry is a channel number.
584 */
585 u32 offset;
586} __packed;
587
588union nvsp_5_message_uber {
589 struct nvsp_5_subchannel_request subchn_req;
590 struct nvsp_5_subchannel_complete subchn_comp;
591 struct nvsp_5_send_indirect_table send_table;
592} __packed;
593
594union nvsp_all_messages {
595 union nvsp_message_init_uber init_msg;
596 union nvsp_1_message_uber v1_msg;
597 union nvsp_2_message_uber v2_msg;
598 union nvsp_4_message_uber v4_msg;
599 union nvsp_5_message_uber v5_msg;
600} __packed;
601
602/* ALL Messages */
603struct nvsp_message {
604 struct nvsp_message_header hdr;
605 union nvsp_all_messages msg;
606} __packed;
607
608
609#define NETVSC_MTU 65535
610#define NETVSC_MTU_MIN ETH_MIN_MTU
611
612#define NETVSC_RECEIVE_BUFFER_SIZE (1024*1024*16) /* 16MB */
613#define NETVSC_RECEIVE_BUFFER_SIZE_LEGACY (1024*1024*15) /* 15MB */
614#define NETVSC_SEND_BUFFER_SIZE (1024 * 1024 * 15) /* 15MB */
615#define NETVSC_INVALID_INDEX -1
616
617
618#define NETVSC_RECEIVE_BUFFER_ID 0xcafe
619#define NETVSC_SEND_BUFFER_ID 0
620
621#define NETVSC_PACKET_SIZE 4096
622
623#define VRSS_SEND_TAB_SIZE 16
624#define VRSS_CHANNEL_MAX 64
625
626#define RNDIS_MAX_PKT_DEFAULT 8
627#define RNDIS_PKT_ALIGN_DEFAULT 8
628
629struct multi_send_data {
630 struct sk_buff *skb; /* skb containing the pkt */
631 struct hv_netvsc_packet *pkt; /* netvsc pkt pending */
632 u32 count; /* counter of batched packets */
633};
634
635struct recv_comp_data {
636 u64 tid; /* transaction id */
637 u32 status;
638};
639
640/* Netvsc Receive Slots Max */
641#define NETVSC_RECVSLOT_MAX (NETVSC_RECEIVE_BUFFER_SIZE / ETH_DATA_LEN + 1)
642
643struct multi_recv_comp {
644 void *buf; /* queued receive completions */
645 u32 first; /* first data entry */
646 u32 next; /* next entry for writing */
647};
648
649struct netvsc_stats {
650 u64 packets;
651 u64 bytes;
652 u64 broadcast;
653 u64 multicast;
654 struct u64_stats_sync syncp;
655};
656
657struct netvsc_ethtool_stats {
658 unsigned long tx_scattered;
659 unsigned long tx_no_memory;
660 unsigned long tx_no_space;
661 unsigned long tx_too_big;
662 unsigned long tx_busy;
663};
664
665struct netvsc_reconfig {
666 struct list_head list;
667 u32 event;
668};
669
670/* The context of the netvsc device */
671struct net_device_context {
672 /* point back to our device context */
673 struct hv_device *device_ctx;
674 /* netvsc_device */
675 struct netvsc_device *nvdev;
676 /* reconfigure work */
677 struct delayed_work dwork;
678 /* last reconfig time */
679 unsigned long last_reconfig;
680 /* reconfig events */
681 struct list_head reconfig_events;
682 /* list protection */
683 spinlock_t lock;
684
685 struct work_struct work;
686 u32 msg_enable; /* debug level */
687
688 struct netvsc_stats __percpu *tx_stats;
689 struct netvsc_stats __percpu *rx_stats;
690
691 /* Ethtool settings */
692 u8 duplex;
693 u32 speed;
694 struct netvsc_ethtool_stats eth_stats;
695
696 /* the device is going away */
697 bool start_remove;
698
699 /* State to manage the associated VF interface. */
700 struct net_device __rcu *vf_netdev;
701
702 /* 1: allocated, serial number is valid. 0: not allocated */
703 u32 vf_alloc;
704 /* Serial number of the VF to team with */
705 u32 vf_serial;
706};
707
708/* Per netvsc device */
709struct netvsc_device {
710 u32 nvsp_version;
711
712 atomic_t num_outstanding_sends;
713 wait_queue_head_t wait_drain;
714 bool destroy;
715
716 /* Receive buffer allocated by us but manages by NetVSP */
717 void *recv_buf;
718 u32 recv_buf_size;
719 u32 recv_buf_gpadl_handle;
720 u32 recv_section_cnt;
721 struct nvsp_1_receive_buffer_section *recv_section;
722
723 /* Send buffer allocated by us */
724 void *send_buf;
725 u32 send_buf_size;
726 u32 send_buf_gpadl_handle;
727 u32 send_section_cnt;
728 u32 send_section_size;
729 unsigned long *send_section_map;
730 int map_words;
731
732 /* Used for NetVSP initialization protocol */
733 struct completion channel_init_wait;
734 struct nvsp_message channel_init_pkt;
735
736 struct nvsp_message revoke_packet;
737
738 struct vmbus_channel *chn_table[VRSS_CHANNEL_MAX];
739 u32 send_table[VRSS_SEND_TAB_SIZE];
740 u32 max_chn;
741 u32 num_chn;
742 spinlock_t sc_lock; /* Protects num_sc_offered variable */
743 u32 num_sc_offered;
744 atomic_t queue_sends[VRSS_CHANNEL_MAX];
745
746 /* Holds rndis device info */
747 void *extension;
748
749 int ring_size;
750
751 /* The primary channel callback buffer */
752 unsigned char *cb_buffer;
753 /* The sub channel callback buffer */
754 unsigned char *sub_cb_buf;
755
756 struct multi_send_data msd[VRSS_CHANNEL_MAX];
757 u32 max_pkt; /* max number of pkt in one send, e.g. 8 */
758 u32 pkt_align; /* alignment bytes, e.g. 8 */
759
760 struct multi_recv_comp mrc[VRSS_CHANNEL_MAX];
761 atomic_t num_outstanding_recvs;
762
763 atomic_t open_cnt;
764};
765
766static inline struct netvsc_device *
767net_device_to_netvsc_device(struct net_device *ndev)
768{
769 return ((struct net_device_context *)netdev_priv(ndev))->nvdev;
770}
771
772static inline struct netvsc_device *
773hv_device_to_netvsc_device(struct hv_device *device)
774{
775 return net_device_to_netvsc_device(hv_get_drvdata(device));
776}
777
778/* NdisInitialize message */
779struct rndis_initialize_request {
780 u32 req_id;
781 u32 major_ver;
782 u32 minor_ver;
783 u32 max_xfer_size;
784};
785
786/* Response to NdisInitialize */
787struct rndis_initialize_complete {
788 u32 req_id;
789 u32 status;
790 u32 major_ver;
791 u32 minor_ver;
792 u32 dev_flags;
793 u32 medium;
794 u32 max_pkt_per_msg;
795 u32 max_xfer_size;
796 u32 pkt_alignment_factor;
797 u32 af_list_offset;
798 u32 af_list_size;
799};
800
801/* Call manager devices only: Information about an address family */
802/* supported by the device is appended to the response to NdisInitialize. */
803struct rndis_co_address_family {
804 u32 address_family;
805 u32 major_ver;
806 u32 minor_ver;
807};
808
809/* NdisHalt message */
810struct rndis_halt_request {
811 u32 req_id;
812};
813
814/* NdisQueryRequest message */
815struct rndis_query_request {
816 u32 req_id;
817 u32 oid;
818 u32 info_buflen;
819 u32 info_buf_offset;
820 u32 dev_vc_handle;
821};
822
823/* Response to NdisQueryRequest */
824struct rndis_query_complete {
825 u32 req_id;
826 u32 status;
827 u32 info_buflen;
828 u32 info_buf_offset;
829};
830
831/* NdisSetRequest message */
832struct rndis_set_request {
833 u32 req_id;
834 u32 oid;
835 u32 info_buflen;
836 u32 info_buf_offset;
837 u32 dev_vc_handle;
838};
839
840/* Response to NdisSetRequest */
841struct rndis_set_complete {
842 u32 req_id;
843 u32 status;
844};
845
846/* NdisReset message */
847struct rndis_reset_request {
848 u32 reserved;
849};
850
851/* Response to NdisReset */
852struct rndis_reset_complete {
853 u32 status;
854 u32 addressing_reset;
855};
856
857/* NdisMIndicateStatus message */
858struct rndis_indicate_status {
859 u32 status;
860 u32 status_buflen;
861 u32 status_buf_offset;
862};
863
864/* Diagnostic information passed as the status buffer in */
865/* struct rndis_indicate_status messages signifying error conditions. */
866struct rndis_diagnostic_info {
867 u32 diag_status;
868 u32 error_offset;
869};
870
871/* NdisKeepAlive message */
872struct rndis_keepalive_request {
873 u32 req_id;
874};
875
876/* Response to NdisKeepAlive */
877struct rndis_keepalive_complete {
878 u32 req_id;
879 u32 status;
880};
881
882/*
883 * Data message. All Offset fields contain byte offsets from the beginning of
884 * struct rndis_packet. All Length fields are in bytes. VcHandle is set
885 * to 0 for connectionless data, otherwise it contains the VC handle.
886 */
887struct rndis_packet {
888 u32 data_offset;
889 u32 data_len;
890 u32 oob_data_offset;
891 u32 oob_data_len;
892 u32 num_oob_data_elements;
893 u32 per_pkt_info_offset;
894 u32 per_pkt_info_len;
895 u32 vc_handle;
896 u32 reserved;
897};
898
899/* Optional Out of Band data associated with a Data message. */
900struct rndis_oobd {
901 u32 size;
902 u32 type;
903 u32 class_info_offset;
904};
905
906/* Packet extension field contents associated with a Data message. */
907struct rndis_per_packet_info {
908 u32 size;
909 u32 type;
910 u32 ppi_offset;
911};
912
913enum ndis_per_pkt_info_type {
914 TCPIP_CHKSUM_PKTINFO,
915 IPSEC_PKTINFO,
916 TCP_LARGESEND_PKTINFO,
917 CLASSIFICATION_HANDLE_PKTINFO,
918 NDIS_RESERVED,
919 SG_LIST_PKTINFO,
920 IEEE_8021Q_INFO,
921 ORIGINAL_PKTINFO,
922 PACKET_CANCEL_ID,
923 NBL_HASH_VALUE = PACKET_CANCEL_ID,
924 ORIGINAL_NET_BUFLIST,
925 CACHED_NET_BUFLIST,
926 SHORT_PKT_PADINFO,
927 MAX_PER_PKT_INFO
928};
929
930struct ndis_pkt_8021q_info {
931 union {
932 struct {
933 u32 pri:3; /* User Priority */
934 u32 cfi:1; /* Canonical Format ID */
935 u32 vlanid:12; /* VLAN ID */
936 u32 reserved:16;
937 };
938 u32 value;
939 };
940};
941
942struct ndis_oject_header {
943 u8 type;
944 u8 revision;
945 u16 size;
946};
947
948#define NDIS_OBJECT_TYPE_DEFAULT 0x80
949#define NDIS_OFFLOAD_PARAMETERS_REVISION_3 3
950#define NDIS_OFFLOAD_PARAMETERS_NO_CHANGE 0
951#define NDIS_OFFLOAD_PARAMETERS_LSOV2_DISABLED 1
952#define NDIS_OFFLOAD_PARAMETERS_LSOV2_ENABLED 2
953#define NDIS_OFFLOAD_PARAMETERS_LSOV1_ENABLED 2
954#define NDIS_OFFLOAD_PARAMETERS_RSC_DISABLED 1
955#define NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED 2
956#define NDIS_OFFLOAD_PARAMETERS_TX_RX_DISABLED 1
957#define NDIS_OFFLOAD_PARAMETERS_TX_ENABLED_RX_DISABLED 2
958#define NDIS_OFFLOAD_PARAMETERS_RX_ENABLED_TX_DISABLED 3
959#define NDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED 4
960
961#define NDIS_TCP_LARGE_SEND_OFFLOAD_V2_TYPE 1
962#define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV4 0
963#define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV6 1
964
965#define VERSION_4_OFFLOAD_SIZE 22
966/*
967 * New offload OIDs for NDIS 6
968 */
969#define OID_TCP_OFFLOAD_CURRENT_CONFIG 0xFC01020B /* query only */
970#define OID_TCP_OFFLOAD_PARAMETERS 0xFC01020C /* set only */
971#define OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020D/* query only */
972#define OID_TCP_CONNECTION_OFFLOAD_CURRENT_CONFIG 0xFC01020E /* query only */
973#define OID_TCP_CONNECTION_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020F /* query */
974#define OID_OFFLOAD_ENCAPSULATION 0x0101010A /* set/query */
975
976struct ndis_offload_params {
977 struct ndis_oject_header header;
978 u8 ip_v4_csum;
979 u8 tcp_ip_v4_csum;
980 u8 udp_ip_v4_csum;
981 u8 tcp_ip_v6_csum;
982 u8 udp_ip_v6_csum;
983 u8 lso_v1;
984 u8 ip_sec_v1;
985 u8 lso_v2_ipv4;
986 u8 lso_v2_ipv6;
987 u8 tcp_connection_ip_v4;
988 u8 tcp_connection_ip_v6;
989 u32 flags;
990 u8 ip_sec_v2;
991 u8 ip_sec_v2_ip_v4;
992 struct {
993 u8 rsc_ip_v4;
994 u8 rsc_ip_v6;
995 };
996 struct {
997 u8 encapsulated_packet_task_offload;
998 u8 encapsulation_types;
999 };
1000};
1001
1002struct ndis_tcp_ip_checksum_info {
1003 union {
1004 struct {
1005 u32 is_ipv4:1;
1006 u32 is_ipv6:1;
1007 u32 tcp_checksum:1;
1008 u32 udp_checksum:1;
1009 u32 ip_header_checksum:1;
1010 u32 reserved:11;
1011 u32 tcp_header_offset:10;
1012 } transmit;
1013 struct {
1014 u32 tcp_checksum_failed:1;
1015 u32 udp_checksum_failed:1;
1016 u32 ip_checksum_failed:1;
1017 u32 tcp_checksum_succeeded:1;
1018 u32 udp_checksum_succeeded:1;
1019 u32 ip_checksum_succeeded:1;
1020 u32 loopback:1;
1021 u32 tcp_checksum_value_invalid:1;
1022 u32 ip_checksum_value_invalid:1;
1023 } receive;
1024 u32 value;
1025 };
1026};
1027
1028struct ndis_tcp_lso_info {
1029 union {
1030 struct {
1031 u32 unused:30;
1032 u32 type:1;
1033 u32 reserved2:1;
1034 } transmit;
1035 struct {
1036 u32 mss:20;
1037 u32 tcp_header_offset:10;
1038 u32 type:1;
1039 u32 reserved2:1;
1040 } lso_v1_transmit;
1041 struct {
1042 u32 tcp_payload:30;
1043 u32 type:1;
1044 u32 reserved2:1;
1045 } lso_v1_transmit_complete;
1046 struct {
1047 u32 mss:20;
1048 u32 tcp_header_offset:10;
1049 u32 type:1;
1050 u32 ip_version:1;
1051 } lso_v2_transmit;
1052 struct {
1053 u32 reserved:30;
1054 u32 type:1;
1055 u32 reserved2:1;
1056 } lso_v2_transmit_complete;
1057 u32 value;
1058 };
1059};
1060
1061#define NDIS_VLAN_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1062 sizeof(struct ndis_pkt_8021q_info))
1063
1064#define NDIS_CSUM_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1065 sizeof(struct ndis_tcp_ip_checksum_info))
1066
1067#define NDIS_LSO_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1068 sizeof(struct ndis_tcp_lso_info))
1069
1070#define NDIS_HASH_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1071 sizeof(u32))
1072
1073/* Total size of all PPI data */
1074#define NDIS_ALL_PPI_SIZE (NDIS_VLAN_PPI_SIZE + NDIS_CSUM_PPI_SIZE + \
1075 NDIS_LSO_PPI_SIZE + NDIS_HASH_PPI_SIZE)
1076
1077/* Format of Information buffer passed in a SetRequest for the OID */
1078/* OID_GEN_RNDIS_CONFIG_PARAMETER. */
1079struct rndis_config_parameter_info {
1080 u32 parameter_name_offset;
1081 u32 parameter_name_length;
1082 u32 parameter_type;
1083 u32 parameter_value_offset;
1084 u32 parameter_value_length;
1085};
1086
1087/* Values for ParameterType in struct rndis_config_parameter_info */
1088#define RNDIS_CONFIG_PARAM_TYPE_INTEGER 0
1089#define RNDIS_CONFIG_PARAM_TYPE_STRING 2
1090
1091/* CONDIS Miniport messages for connection oriented devices */
1092/* that do not implement a call manager. */
1093
1094/* CoNdisMiniportCreateVc message */
1095struct rcondis_mp_create_vc {
1096 u32 req_id;
1097 u32 ndis_vc_handle;
1098};
1099
1100/* Response to CoNdisMiniportCreateVc */
1101struct rcondis_mp_create_vc_complete {
1102 u32 req_id;
1103 u32 dev_vc_handle;
1104 u32 status;
1105};
1106
1107/* CoNdisMiniportDeleteVc message */
1108struct rcondis_mp_delete_vc {
1109 u32 req_id;
1110 u32 dev_vc_handle;
1111};
1112
1113/* Response to CoNdisMiniportDeleteVc */
1114struct rcondis_mp_delete_vc_complete {
1115 u32 req_id;
1116 u32 status;
1117};
1118
1119/* CoNdisMiniportQueryRequest message */
1120struct rcondis_mp_query_request {
1121 u32 req_id;
1122 u32 request_type;
1123 u32 oid;
1124 u32 dev_vc_handle;
1125 u32 info_buflen;
1126 u32 info_buf_offset;
1127};
1128
1129/* CoNdisMiniportSetRequest message */
1130struct rcondis_mp_set_request {
1131 u32 req_id;
1132 u32 request_type;
1133 u32 oid;
1134 u32 dev_vc_handle;
1135 u32 info_buflen;
1136 u32 info_buf_offset;
1137};
1138
1139/* CoNdisIndicateStatus message */
1140struct rcondis_indicate_status {
1141 u32 ndis_vc_handle;
1142 u32 status;
1143 u32 status_buflen;
1144 u32 status_buf_offset;
1145};
1146
1147/* CONDIS Call/VC parameters */
1148struct rcondis_specific_parameters {
1149 u32 parameter_type;
1150 u32 parameter_length;
1151 u32 parameter_lffset;
1152};
1153
1154struct rcondis_media_parameters {
1155 u32 flags;
1156 u32 reserved1;
1157 u32 reserved2;
1158 struct rcondis_specific_parameters media_specific;
1159};
1160
1161struct rndis_flowspec {
1162 u32 token_rate;
1163 u32 token_bucket_size;
1164 u32 peak_bandwidth;
1165 u32 latency;
1166 u32 delay_variation;
1167 u32 service_type;
1168 u32 max_sdu_size;
1169 u32 minimum_policed_size;
1170};
1171
1172struct rcondis_call_manager_parameters {
1173 struct rndis_flowspec transmit;
1174 struct rndis_flowspec receive;
1175 struct rcondis_specific_parameters call_mgr_specific;
1176};
1177
1178/* CoNdisMiniportActivateVc message */
1179struct rcondis_mp_activate_vc_request {
1180 u32 req_id;
1181 u32 flags;
1182 u32 dev_vc_handle;
1183 u32 media_params_offset;
1184 u32 media_params_length;
1185 u32 call_mgr_params_offset;
1186 u32 call_mgr_params_length;
1187};
1188
1189/* Response to CoNdisMiniportActivateVc */
1190struct rcondis_mp_activate_vc_complete {
1191 u32 req_id;
1192 u32 status;
1193};
1194
1195/* CoNdisMiniportDeactivateVc message */
1196struct rcondis_mp_deactivate_vc_request {
1197 u32 req_id;
1198 u32 flags;
1199 u32 dev_vc_handle;
1200};
1201
1202/* Response to CoNdisMiniportDeactivateVc */
1203struct rcondis_mp_deactivate_vc_complete {
1204 u32 req_id;
1205 u32 status;
1206};
1207
1208
1209/* union with all of the RNDIS messages */
1210union rndis_message_container {
1211 struct rndis_packet pkt;
1212 struct rndis_initialize_request init_req;
1213 struct rndis_halt_request halt_req;
1214 struct rndis_query_request query_req;
1215 struct rndis_set_request set_req;
1216 struct rndis_reset_request reset_req;
1217 struct rndis_keepalive_request keep_alive_req;
1218 struct rndis_indicate_status indicate_status;
1219 struct rndis_initialize_complete init_complete;
1220 struct rndis_query_complete query_complete;
1221 struct rndis_set_complete set_complete;
1222 struct rndis_reset_complete reset_complete;
1223 struct rndis_keepalive_complete keep_alive_complete;
1224 struct rcondis_mp_create_vc co_miniport_create_vc;
1225 struct rcondis_mp_delete_vc co_miniport_delete_vc;
1226 struct rcondis_indicate_status co_indicate_status;
1227 struct rcondis_mp_activate_vc_request co_miniport_activate_vc;
1228 struct rcondis_mp_deactivate_vc_request co_miniport_deactivate_vc;
1229 struct rcondis_mp_create_vc_complete co_miniport_create_vc_complete;
1230 struct rcondis_mp_delete_vc_complete co_miniport_delete_vc_complete;
1231 struct rcondis_mp_activate_vc_complete co_miniport_activate_vc_complete;
1232 struct rcondis_mp_deactivate_vc_complete
1233 co_miniport_deactivate_vc_complete;
1234};
1235
1236/* Remote NDIS message format */
1237struct rndis_message {
1238 u32 ndis_msg_type;
1239
1240 /* Total length of this message, from the beginning */
1241 /* of the struct rndis_message, in bytes. */
1242 u32 msg_len;
1243
1244 /* Actual message */
1245 union rndis_message_container msg;
1246};
1247
1248
1249/* Handy macros */
1250
1251/* get the size of an RNDIS message. Pass in the message type, */
1252/* struct rndis_set_request, struct rndis_packet for example */
1253#define RNDIS_MESSAGE_SIZE(msg) \
1254 (sizeof(msg) + (sizeof(struct rndis_message) - \
1255 sizeof(union rndis_message_container)))
1256
1257/* get pointer to info buffer with message pointer */
1258#define MESSAGE_TO_INFO_BUFFER(msg) \
1259 (((unsigned char *)(msg)) + msg->info_buf_offset)
1260
1261/* get pointer to status buffer with message pointer */
1262#define MESSAGE_TO_STATUS_BUFFER(msg) \
1263 (((unsigned char *)(msg)) + msg->status_buf_offset)
1264
1265/* get pointer to OOBD buffer with message pointer */
1266#define MESSAGE_TO_OOBD_BUFFER(msg) \
1267 (((unsigned char *)(msg)) + msg->oob_data_offset)
1268
1269/* get pointer to data buffer with message pointer */
1270#define MESSAGE_TO_DATA_BUFFER(msg) \
1271 (((unsigned char *)(msg)) + msg->per_pkt_info_offset)
1272
1273/* get pointer to contained message from NDIS_MESSAGE pointer */
1274#define RNDIS_MESSAGE_PTR_TO_MESSAGE_PTR(rndis_msg) \
1275 ((void *) &rndis_msg->msg)
1276
1277/* get pointer to contained message from NDIS_MESSAGE pointer */
1278#define RNDIS_MESSAGE_RAW_PTR_TO_MESSAGE_PTR(rndis_msg) \
1279 ((void *) rndis_msg)
1280
1281
1282#define __struct_bcount(x)
1283
1284
1285
1286#define RNDIS_HEADER_SIZE (sizeof(struct rndis_message) - \
1287 sizeof(union rndis_message_container))
1288
1289#define RNDIS_AND_PPI_SIZE (sizeof(struct rndis_message) + NDIS_ALL_PPI_SIZE)
1290
1291#define NDIS_PACKET_TYPE_DIRECTED 0x00000001
1292#define NDIS_PACKET_TYPE_MULTICAST 0x00000002
1293#define NDIS_PACKET_TYPE_ALL_MULTICAST 0x00000004
1294#define NDIS_PACKET_TYPE_BROADCAST 0x00000008
1295#define NDIS_PACKET_TYPE_SOURCE_ROUTING 0x00000010
1296#define NDIS_PACKET_TYPE_PROMISCUOUS 0x00000020
1297#define NDIS_PACKET_TYPE_SMT 0x00000040
1298#define NDIS_PACKET_TYPE_ALL_LOCAL 0x00000080
1299#define NDIS_PACKET_TYPE_GROUP 0x00000100
1300#define NDIS_PACKET_TYPE_ALL_FUNCTIONAL 0x00000200
1301#define NDIS_PACKET_TYPE_FUNCTIONAL 0x00000400
1302#define NDIS_PACKET_TYPE_MAC_FRAME 0x00000800
1303
1304#define INFO_IPV4 2
1305#define INFO_IPV6 4
1306#define INFO_TCP 2
1307#define INFO_UDP 4
1308
1309#define TRANSPORT_INFO_NOT_IP 0
1310#define TRANSPORT_INFO_IPV4_TCP ((INFO_IPV4 << 16) | INFO_TCP)
1311#define TRANSPORT_INFO_IPV4_UDP ((INFO_IPV4 << 16) | INFO_UDP)
1312#define TRANSPORT_INFO_IPV6_TCP ((INFO_IPV6 << 16) | INFO_TCP)
1313#define TRANSPORT_INFO_IPV6_UDP ((INFO_IPV6 << 16) | INFO_UDP)
1314
1315#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
19/* RSS related */
20#define OID_GEN_RECEIVE_SCALE_CAPABILITIES 0x00010203 /* query only */
21#define OID_GEN_RECEIVE_SCALE_PARAMETERS 0x00010204 /* query and set */
22
23#define NDIS_OBJECT_TYPE_RSS_CAPABILITIES 0x88
24#define NDIS_OBJECT_TYPE_RSS_PARAMETERS 0x89
25#define NDIS_OBJECT_TYPE_OFFLOAD 0xa7
26
27#define NDIS_RECEIVE_SCALE_CAPABILITIES_REVISION_2 2
28#define NDIS_RECEIVE_SCALE_PARAMETERS_REVISION_2 2
29
30struct ndis_obj_header {
31 u8 type;
32 u8 rev;
33 u16 size;
34} __packed;
35
36/* ndis_recv_scale_cap/cap_flag */
37#define NDIS_RSS_CAPS_MESSAGE_SIGNALED_INTERRUPTS 0x01000000
38#define NDIS_RSS_CAPS_CLASSIFICATION_AT_ISR 0x02000000
39#define NDIS_RSS_CAPS_CLASSIFICATION_AT_DPC 0x04000000
40#define NDIS_RSS_CAPS_USING_MSI_X 0x08000000
41#define NDIS_RSS_CAPS_RSS_AVAILABLE_ON_PORTS 0x10000000
42#define NDIS_RSS_CAPS_SUPPORTS_MSI_X 0x20000000
43#define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV4 0x00000100
44#define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV6 0x00000200
45#define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV6_EX 0x00000400
46
47struct ndis_recv_scale_cap { /* NDIS_RECEIVE_SCALE_CAPABILITIES */
48 struct ndis_obj_header hdr;
49 u32 cap_flag;
50 u32 num_int_msg;
51 u32 num_recv_que;
52 u16 num_indirect_tabent;
53} __packed;
54
55
56/* ndis_recv_scale_param flags */
57#define NDIS_RSS_PARAM_FLAG_BASE_CPU_UNCHANGED 0x0001
58#define NDIS_RSS_PARAM_FLAG_HASH_INFO_UNCHANGED 0x0002
59#define NDIS_RSS_PARAM_FLAG_ITABLE_UNCHANGED 0x0004
60#define NDIS_RSS_PARAM_FLAG_HASH_KEY_UNCHANGED 0x0008
61#define NDIS_RSS_PARAM_FLAG_DISABLE_RSS 0x0010
62
63/* Hash info bits */
64#define NDIS_HASH_FUNC_TOEPLITZ 0x00000001
65#define NDIS_HASH_IPV4 0x00000100
66#define NDIS_HASH_TCP_IPV4 0x00000200
67#define NDIS_HASH_IPV6 0x00000400
68#define NDIS_HASH_IPV6_EX 0x00000800
69#define NDIS_HASH_TCP_IPV6 0x00001000
70#define NDIS_HASH_TCP_IPV6_EX 0x00002000
71
72#define NDIS_RSS_INDIRECTION_TABLE_MAX_SIZE_REVISION_2 (128 * 4)
73#define NDIS_RSS_HASH_SECRET_KEY_MAX_SIZE_REVISION_2 40
74
75#define ITAB_NUM 128
76
77struct ndis_recv_scale_param { /* NDIS_RECEIVE_SCALE_PARAMETERS */
78 struct ndis_obj_header hdr;
79
80 /* Qualifies the rest of the information */
81 u16 flag;
82
83 /* The base CPU number to do receive processing. not used */
84 u16 base_cpu_number;
85
86 /* This describes the hash function and type being enabled */
87 u32 hashinfo;
88
89 /* The size of indirection table array */
90 u16 indirect_tabsize;
91
92 /* The offset of the indirection table from the beginning of this
93 * structure
94 */
95 u32 indirect_taboffset;
96
97 /* The size of the hash secret key */
98 u16 hashkey_size;
99
100 /* The offset of the secret key from the beginning of this structure */
101 u32 hashkey_offset;
102
103 u32 processor_masks_offset;
104 u32 num_processor_masks;
105 u32 processor_masks_entry_size;
106};
107
108/* Fwd declaration */
109struct ndis_tcp_ip_checksum_info;
110struct ndis_pkt_8021q_info;
111
112/*
113 * Represent netvsc packet which contains 1 RNDIS and 1 ethernet frame
114 * within the RNDIS
115 *
116 * The size of this structure is less than 48 bytes and we can now
117 * place this structure in the skb->cb field.
118 */
119struct hv_netvsc_packet {
120 /* Bookkeeping stuff */
121 u8 cp_partial; /* partial copy into send buffer */
122
123 u8 rmsg_size; /* RNDIS header and PPI size */
124 u8 rmsg_pgcnt; /* page count of RNDIS header and PPI */
125 u8 page_buf_cnt;
126
127 u16 q_idx;
128 u16 total_packets;
129
130 u32 total_bytes;
131 u32 send_buf_index;
132 u32 total_data_buflen;
133};
134
135#define NETVSC_HASH_KEYLEN 40
136
137struct netvsc_device_info {
138 unsigned char mac_adr[ETH_ALEN];
139 u32 num_chn;
140 u32 send_sections;
141 u32 recv_sections;
142 u32 send_section_size;
143 u32 recv_section_size;
144
145 struct bpf_prog *bprog;
146
147 u8 rss_key[NETVSC_HASH_KEYLEN];
148};
149
150enum rndis_device_state {
151 RNDIS_DEV_UNINITIALIZED = 0,
152 RNDIS_DEV_INITIALIZING,
153 RNDIS_DEV_INITIALIZED,
154 RNDIS_DEV_DATAINITIALIZED,
155};
156
157struct rndis_device {
158 struct net_device *ndev;
159
160 enum rndis_device_state state;
161
162 atomic_t new_req_id;
163
164 spinlock_t request_lock;
165 struct list_head req_list;
166
167 struct work_struct mcast_work;
168 u32 filter;
169
170 bool link_state; /* 0 - link up, 1 - link down */
171
172 u8 hw_mac_adr[ETH_ALEN];
173 u8 rss_key[NETVSC_HASH_KEYLEN];
174};
175
176
177/* Interface */
178struct rndis_message;
179struct ndis_offload_params;
180struct netvsc_device;
181struct netvsc_channel;
182struct net_device_context;
183
184extern u32 netvsc_ring_bytes;
185
186struct netvsc_device *netvsc_device_add(struct hv_device *device,
187 const struct netvsc_device_info *info);
188int netvsc_alloc_recv_comp_ring(struct netvsc_device *net_device, u32 q_idx);
189void netvsc_device_remove(struct hv_device *device);
190int netvsc_send(struct net_device *net,
191 struct hv_netvsc_packet *packet,
192 struct rndis_message *rndis_msg,
193 struct hv_page_buffer *page_buffer,
194 struct sk_buff *skb,
195 bool xdp_tx);
196void netvsc_linkstatus_callback(struct net_device *net,
197 struct rndis_message *resp);
198int netvsc_recv_callback(struct net_device *net,
199 struct netvsc_device *nvdev,
200 struct netvsc_channel *nvchan);
201void netvsc_channel_cb(void *context);
202int netvsc_poll(struct napi_struct *napi, int budget);
203
204u32 netvsc_run_xdp(struct net_device *ndev, struct netvsc_channel *nvchan,
205 struct xdp_buff *xdp);
206unsigned int netvsc_xdp_fraglen(unsigned int len);
207struct bpf_prog *netvsc_xdp_get(struct netvsc_device *nvdev);
208int netvsc_xdp_set(struct net_device *dev, struct bpf_prog *prog,
209 struct netlink_ext_ack *extack,
210 struct netvsc_device *nvdev);
211int netvsc_vf_setxdp(struct net_device *vf_netdev, struct bpf_prog *prog);
212int netvsc_bpf(struct net_device *dev, struct netdev_bpf *bpf);
213
214int rndis_set_subchannel(struct net_device *ndev,
215 struct netvsc_device *nvdev,
216 struct netvsc_device_info *dev_info);
217int rndis_filter_open(struct netvsc_device *nvdev);
218int rndis_filter_close(struct netvsc_device *nvdev);
219struct netvsc_device *rndis_filter_device_add(struct hv_device *dev,
220 struct netvsc_device_info *info);
221void rndis_filter_update(struct netvsc_device *nvdev);
222void rndis_filter_device_remove(struct hv_device *dev,
223 struct netvsc_device *nvdev);
224int rndis_filter_set_rss_param(struct rndis_device *rdev,
225 const u8 *key);
226int rndis_filter_set_offload_params(struct net_device *ndev,
227 struct netvsc_device *nvdev,
228 struct ndis_offload_params *req_offloads);
229int rndis_filter_receive(struct net_device *ndev,
230 struct netvsc_device *net_dev,
231 struct netvsc_channel *nvchan,
232 void *data, u32 buflen);
233
234int rndis_filter_set_device_mac(struct netvsc_device *ndev,
235 const char *mac);
236
237void netvsc_switch_datapath(struct net_device *nv_dev, bool vf);
238
239#define NVSP_INVALID_PROTOCOL_VERSION ((u32)0xFFFFFFFF)
240
241#define NVSP_PROTOCOL_VERSION_1 2
242#define NVSP_PROTOCOL_VERSION_2 0x30002
243#define NVSP_PROTOCOL_VERSION_4 0x40000
244#define NVSP_PROTOCOL_VERSION_5 0x50000
245#define NVSP_PROTOCOL_VERSION_6 0x60000
246#define NVSP_PROTOCOL_VERSION_61 0x60001
247
248enum {
249 NVSP_MSG_TYPE_NONE = 0,
250
251 /* Init Messages */
252 NVSP_MSG_TYPE_INIT = 1,
253 NVSP_MSG_TYPE_INIT_COMPLETE = 2,
254
255 NVSP_VERSION_MSG_START = 100,
256
257 /* Version 1 Messages */
258 NVSP_MSG1_TYPE_SEND_NDIS_VER = NVSP_VERSION_MSG_START,
259
260 NVSP_MSG1_TYPE_SEND_RECV_BUF,
261 NVSP_MSG1_TYPE_SEND_RECV_BUF_COMPLETE,
262 NVSP_MSG1_TYPE_REVOKE_RECV_BUF,
263
264 NVSP_MSG1_TYPE_SEND_SEND_BUF,
265 NVSP_MSG1_TYPE_SEND_SEND_BUF_COMPLETE,
266 NVSP_MSG1_TYPE_REVOKE_SEND_BUF,
267
268 NVSP_MSG1_TYPE_SEND_RNDIS_PKT,
269 NVSP_MSG1_TYPE_SEND_RNDIS_PKT_COMPLETE,
270
271 /* Version 2 messages */
272 NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF,
273 NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF_COMP,
274 NVSP_MSG2_TYPE_REVOKE_CHIMNEY_DELEGATED_BUF,
275
276 NVSP_MSG2_TYPE_RESUME_CHIMNEY_RX_INDICATION,
277
278 NVSP_MSG2_TYPE_TERMINATE_CHIMNEY,
279 NVSP_MSG2_TYPE_TERMINATE_CHIMNEY_COMP,
280
281 NVSP_MSG2_TYPE_INDICATE_CHIMNEY_EVENT,
282
283 NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT,
284 NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT_COMP,
285
286 NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ,
287 NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ_COMP,
288
289 NVSP_MSG2_TYPE_ALLOC_RXBUF,
290 NVSP_MSG2_TYPE_ALLOC_RXBUF_COMP,
291
292 NVSP_MSG2_TYPE_FREE_RXBUF,
293
294 NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT,
295 NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT_COMP,
296
297 NVSP_MSG2_TYPE_SEND_NDIS_CONFIG,
298
299 NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE,
300 NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP,
301
302 NVSP_MSG2_MAX = NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP,
303
304 /* Version 4 messages */
305 NVSP_MSG4_TYPE_SEND_VF_ASSOCIATION,
306 NVSP_MSG4_TYPE_SWITCH_DATA_PATH,
307 NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED,
308
309 NVSP_MSG4_MAX = NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED,
310
311 /* Version 5 messages */
312 NVSP_MSG5_TYPE_OID_QUERY_EX,
313 NVSP_MSG5_TYPE_OID_QUERY_EX_COMP,
314 NVSP_MSG5_TYPE_SUBCHANNEL,
315 NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE,
316
317 NVSP_MSG5_MAX = NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE,
318
319 /* Version 6 messages */
320 NVSP_MSG6_TYPE_PD_API,
321 NVSP_MSG6_TYPE_PD_POST_BATCH,
322
323 NVSP_MSG6_MAX = NVSP_MSG6_TYPE_PD_POST_BATCH
324};
325
326enum {
327 NVSP_STAT_NONE = 0,
328 NVSP_STAT_SUCCESS,
329 NVSP_STAT_FAIL,
330 NVSP_STAT_PROTOCOL_TOO_NEW,
331 NVSP_STAT_PROTOCOL_TOO_OLD,
332 NVSP_STAT_INVALID_RNDIS_PKT,
333 NVSP_STAT_BUSY,
334 NVSP_STAT_PROTOCOL_UNSUPPORTED,
335 NVSP_STAT_MAX,
336};
337
338struct nvsp_message_header {
339 u32 msg_type;
340};
341
342/* Init Messages */
343
344/*
345 * This message is used by the VSC to initialize the channel after the channels
346 * has been opened. This message should never include anything other then
347 * versioning (i.e. this message will be the same for ever).
348 */
349struct nvsp_message_init {
350 u32 min_protocol_ver;
351 u32 max_protocol_ver;
352} __packed;
353
354/*
355 * This message is used by the VSP to complete the initialization of the
356 * channel. This message should never include anything other then versioning
357 * (i.e. this message will be the same for ever).
358 */
359struct nvsp_message_init_complete {
360 u32 negotiated_protocol_ver;
361 u32 max_mdl_chain_len;
362 u32 status;
363} __packed;
364
365union nvsp_message_init_uber {
366 struct nvsp_message_init init;
367 struct nvsp_message_init_complete init_complete;
368} __packed;
369
370/* Version 1 Messages */
371
372/*
373 * This message is used by the VSC to send the NDIS version to the VSP. The VSP
374 * can use this information when handling OIDs sent by the VSC.
375 */
376struct nvsp_1_message_send_ndis_version {
377 u32 ndis_major_ver;
378 u32 ndis_minor_ver;
379} __packed;
380
381/*
382 * This message is used by the VSC to send a receive buffer to the VSP. The VSP
383 * can then use the receive buffer to send data to the VSC.
384 */
385struct nvsp_1_message_send_receive_buffer {
386 u32 gpadl_handle;
387 u16 id;
388} __packed;
389
390struct nvsp_1_receive_buffer_section {
391 u32 offset;
392 u32 sub_alloc_size;
393 u32 num_sub_allocs;
394 u32 end_offset;
395} __packed;
396
397/*
398 * This message is used by the VSP to acknowledge a receive buffer send by the
399 * VSC. This message must be sent by the VSP before the VSP uses the receive
400 * buffer.
401 */
402struct nvsp_1_message_send_receive_buffer_complete {
403 u32 status;
404 u32 num_sections;
405
406 /*
407 * The receive buffer is split into two parts, a large suballocation
408 * section and a small suballocation section. These sections are then
409 * suballocated by a certain size.
410 */
411
412 /*
413 * For example, the following break up of the receive buffer has 6
414 * large suballocations and 10 small suballocations.
415 */
416
417 /*
418 * | Large Section | | Small Section |
419 * ------------------------------------------------------------
420 * | | | | | | | | | | | | | | | | | |
421 * | |
422 * LargeOffset SmallOffset
423 */
424
425 struct nvsp_1_receive_buffer_section sections[1];
426} __packed;
427
428/*
429 * This message is sent by the VSC to revoke the receive buffer. After the VSP
430 * completes this transaction, the vsp should never use the receive buffer
431 * again.
432 */
433struct nvsp_1_message_revoke_receive_buffer {
434 u16 id;
435};
436
437/*
438 * This message is used by the VSC to send a send buffer to the VSP. The VSC
439 * can then use the send buffer to send data to the VSP.
440 */
441struct nvsp_1_message_send_send_buffer {
442 u32 gpadl_handle;
443 u16 id;
444} __packed;
445
446/*
447 * This message is used by the VSP to acknowledge a send buffer sent by the
448 * VSC. This message must be sent by the VSP before the VSP uses the sent
449 * buffer.
450 */
451struct nvsp_1_message_send_send_buffer_complete {
452 u32 status;
453
454 /*
455 * The VSC gets to choose the size of the send buffer and the VSP gets
456 * to choose the sections size of the buffer. This was done to enable
457 * dynamic reconfigurations when the cost of GPA-direct buffers
458 * decreases.
459 */
460 u32 section_size;
461} __packed;
462
463/*
464 * This message is sent by the VSC to revoke the send buffer. After the VSP
465 * completes this transaction, the vsp should never use the send buffer again.
466 */
467struct nvsp_1_message_revoke_send_buffer {
468 u16 id;
469};
470
471/*
472 * This message is used by both the VSP and the VSC to send a RNDIS message to
473 * the opposite channel endpoint.
474 */
475struct nvsp_1_message_send_rndis_packet {
476 /*
477 * This field is specified by RNDIS. They assume there's two different
478 * channels of communication. However, the Network VSP only has one.
479 * Therefore, the channel travels with the RNDIS packet.
480 */
481 u32 channel_type;
482
483 /*
484 * This field is used to send part or all of the data through a send
485 * buffer. This values specifies an index into the send buffer. If the
486 * index is 0xFFFFFFFF, then the send buffer is not being used and all
487 * of the data was sent through other VMBus mechanisms.
488 */
489 u32 send_buf_section_index;
490 u32 send_buf_section_size;
491} __packed;
492
493/*
494 * This message is used by both the VSP and the VSC to complete a RNDIS message
495 * to the opposite channel endpoint. At this point, the initiator of this
496 * message cannot use any resources associated with the original RNDIS packet.
497 */
498struct nvsp_1_message_send_rndis_packet_complete {
499 u32 status;
500};
501
502union nvsp_1_message_uber {
503 struct nvsp_1_message_send_ndis_version send_ndis_ver;
504
505 struct nvsp_1_message_send_receive_buffer send_recv_buf;
506 struct nvsp_1_message_send_receive_buffer_complete
507 send_recv_buf_complete;
508 struct nvsp_1_message_revoke_receive_buffer revoke_recv_buf;
509
510 struct nvsp_1_message_send_send_buffer send_send_buf;
511 struct nvsp_1_message_send_send_buffer_complete send_send_buf_complete;
512 struct nvsp_1_message_revoke_send_buffer revoke_send_buf;
513
514 struct nvsp_1_message_send_rndis_packet send_rndis_pkt;
515 struct nvsp_1_message_send_rndis_packet_complete
516 send_rndis_pkt_complete;
517} __packed;
518
519
520/*
521 * Network VSP protocol version 2 messages:
522 */
523struct nvsp_2_vsc_capability {
524 union {
525 u64 data;
526 struct {
527 u64 vmq:1;
528 u64 chimney:1;
529 u64 sriov:1;
530 u64 ieee8021q:1;
531 u64 correlation_id:1;
532 u64 teaming:1;
533 u64 vsubnetid:1;
534 u64 rsc:1;
535 };
536 };
537} __packed;
538
539struct nvsp_2_send_ndis_config {
540 u32 mtu;
541 u32 reserved;
542 struct nvsp_2_vsc_capability capability;
543} __packed;
544
545/* Allocate receive buffer */
546struct nvsp_2_alloc_rxbuf {
547 /* Allocation ID to match the allocation request and response */
548 u32 alloc_id;
549
550 /* Length of the VM shared memory receive buffer that needs to
551 * be allocated
552 */
553 u32 len;
554} __packed;
555
556/* Allocate receive buffer complete */
557struct nvsp_2_alloc_rxbuf_comp {
558 /* The NDIS_STATUS code for buffer allocation */
559 u32 status;
560
561 u32 alloc_id;
562
563 /* GPADL handle for the allocated receive buffer */
564 u32 gpadl_handle;
565
566 /* Receive buffer ID */
567 u64 recv_buf_id;
568} __packed;
569
570struct nvsp_2_free_rxbuf {
571 u64 recv_buf_id;
572} __packed;
573
574union nvsp_2_message_uber {
575 struct nvsp_2_send_ndis_config send_ndis_config;
576 struct nvsp_2_alloc_rxbuf alloc_rxbuf;
577 struct nvsp_2_alloc_rxbuf_comp alloc_rxbuf_comp;
578 struct nvsp_2_free_rxbuf free_rxbuf;
579} __packed;
580
581struct nvsp_4_send_vf_association {
582 /* 1: allocated, serial number is valid. 0: not allocated */
583 u32 allocated;
584
585 /* Serial number of the VF to team with */
586 u32 serial;
587} __packed;
588
589enum nvsp_vm_datapath {
590 NVSP_DATAPATH_SYNTHETIC = 0,
591 NVSP_DATAPATH_VF,
592 NVSP_DATAPATH_MAX
593};
594
595struct nvsp_4_sw_datapath {
596 u32 active_datapath; /* active data path in VM */
597} __packed;
598
599union nvsp_4_message_uber {
600 struct nvsp_4_send_vf_association vf_assoc;
601 struct nvsp_4_sw_datapath active_dp;
602} __packed;
603
604enum nvsp_subchannel_operation {
605 NVSP_SUBCHANNEL_NONE = 0,
606 NVSP_SUBCHANNEL_ALLOCATE,
607 NVSP_SUBCHANNEL_MAX
608};
609
610struct nvsp_5_subchannel_request {
611 u32 op;
612 u32 num_subchannels;
613} __packed;
614
615struct nvsp_5_subchannel_complete {
616 u32 status;
617 u32 num_subchannels; /* Actual number of subchannels allocated */
618} __packed;
619
620struct nvsp_5_send_indirect_table {
621 /* The number of entries in the send indirection table */
622 u32 count;
623
624 /* The offset of the send indirection table from the beginning of
625 * struct nvsp_message.
626 * The send indirection table tells which channel to put the send
627 * traffic on. Each entry is a channel number.
628 */
629 u32 offset;
630} __packed;
631
632union nvsp_5_message_uber {
633 struct nvsp_5_subchannel_request subchn_req;
634 struct nvsp_5_subchannel_complete subchn_comp;
635 struct nvsp_5_send_indirect_table send_table;
636} __packed;
637
638enum nvsp_6_pd_api_op {
639 PD_API_OP_CONFIG = 1,
640 PD_API_OP_SW_DATAPATH, /* Switch Datapath */
641 PD_API_OP_OPEN_PROVIDER,
642 PD_API_OP_CLOSE_PROVIDER,
643 PD_API_OP_CREATE_QUEUE,
644 PD_API_OP_FLUSH_QUEUE,
645 PD_API_OP_FREE_QUEUE,
646 PD_API_OP_ALLOC_COM_BUF, /* Allocate Common Buffer */
647 PD_API_OP_FREE_COM_BUF, /* Free Common Buffer */
648 PD_API_OP_MAX
649};
650
651struct grp_affinity {
652 u64 mask;
653 u16 grp;
654 u16 reserved[3];
655} __packed;
656
657struct nvsp_6_pd_api_req {
658 u32 op;
659
660 union {
661 /* MMIO information is sent from the VM to VSP */
662 struct __packed {
663 u64 mmio_pa; /* MMIO Physical Address */
664 u32 mmio_len;
665
666 /* Number of PD queues a VM can support */
667 u16 num_subchn;
668 } config;
669
670 /* Switch Datapath */
671 struct __packed {
672 /* Host Datapath Is PacketDirect */
673 u8 host_dpath_is_pd;
674
675 /* Guest PacketDirect Is Enabled */
676 u8 guest_pd_enabled;
677 } sw_dpath;
678
679 /* Open Provider*/
680 struct __packed {
681 u32 prov_id; /* Provider id */
682 u32 flag;
683 } open_prov;
684
685 /* Close Provider */
686 struct __packed {
687 u32 prov_id;
688 } cls_prov;
689
690 /* Create Queue*/
691 struct __packed {
692 u32 prov_id;
693 u16 q_id;
694 u16 q_size;
695 u8 is_recv_q;
696 u8 is_rss_q;
697 u32 recv_data_len;
698 struct grp_affinity affy;
699 } cr_q;
700
701 /* Delete Queue*/
702 struct __packed {
703 u32 prov_id;
704 u16 q_id;
705 } del_q;
706
707 /* Flush Queue */
708 struct __packed {
709 u32 prov_id;
710 u16 q_id;
711 } flush_q;
712
713 /* Allocate Common Buffer */
714 struct __packed {
715 u32 len;
716 u32 pf_node; /* Preferred Node */
717 u16 region_id;
718 } alloc_com_buf;
719
720 /* Free Common Buffer */
721 struct __packed {
722 u32 len;
723 u64 pa; /* Physical Address */
724 u32 pf_node; /* Preferred Node */
725 u16 region_id;
726 u8 cache_type;
727 } free_com_buf;
728 } __packed;
729} __packed;
730
731struct nvsp_6_pd_api_comp {
732 u32 op;
733 u32 status;
734
735 union {
736 struct __packed {
737 /* actual number of PD queues allocated to the VM */
738 u16 num_pd_q;
739
740 /* Num Receive Rss PD Queues */
741 u8 num_rss_q;
742
743 u8 is_supported; /* Is supported by VSP */
744 u8 is_enabled; /* Is enabled by VSP */
745 } config;
746
747 /* Open Provider */
748 struct __packed {
749 u32 prov_id;
750 } open_prov;
751
752 /* Create Queue */
753 struct __packed {
754 u32 prov_id;
755 u16 q_id;
756 u16 q_size;
757 u32 recv_data_len;
758 struct grp_affinity affy;
759 } cr_q;
760
761 /* Allocate Common Buffer */
762 struct __packed {
763 u64 pa; /* Physical Address */
764 u32 len;
765 u32 pf_node; /* Preferred Node */
766 u16 region_id;
767 u8 cache_type;
768 } alloc_com_buf;
769 } __packed;
770} __packed;
771
772struct nvsp_6_pd_buf {
773 u32 region_offset;
774 u16 region_id;
775 u16 is_partial:1;
776 u16 reserved:15;
777} __packed;
778
779struct nvsp_6_pd_batch_msg {
780 struct nvsp_message_header hdr;
781 u16 count;
782 u16 guest2host:1;
783 u16 is_recv:1;
784 u16 reserved:14;
785 struct nvsp_6_pd_buf pd_buf[0];
786} __packed;
787
788union nvsp_6_message_uber {
789 struct nvsp_6_pd_api_req pd_req;
790 struct nvsp_6_pd_api_comp pd_comp;
791} __packed;
792
793union nvsp_all_messages {
794 union nvsp_message_init_uber init_msg;
795 union nvsp_1_message_uber v1_msg;
796 union nvsp_2_message_uber v2_msg;
797 union nvsp_4_message_uber v4_msg;
798 union nvsp_5_message_uber v5_msg;
799 union nvsp_6_message_uber v6_msg;
800} __packed;
801
802/* ALL Messages */
803struct nvsp_message {
804 struct nvsp_message_header hdr;
805 union nvsp_all_messages msg;
806} __packed;
807
808
809#define NETVSC_MTU 65535
810#define NETVSC_MTU_MIN ETH_MIN_MTU
811
812/* Max buffer sizes allowed by a host */
813#define NETVSC_RECEIVE_BUFFER_SIZE (1024 * 1024 * 31) /* 31MB */
814#define NETVSC_RECEIVE_BUFFER_SIZE_LEGACY (1024 * 1024 * 15) /* 15MB */
815#define NETVSC_RECEIVE_BUFFER_DEFAULT (1024 * 1024 * 16)
816
817#define NETVSC_SEND_BUFFER_SIZE (1024 * 1024 * 15) /* 15MB */
818#define NETVSC_SEND_BUFFER_DEFAULT (1024 * 1024)
819
820#define NETVSC_INVALID_INDEX -1
821
822#define NETVSC_SEND_SECTION_SIZE 6144
823#define NETVSC_RECV_SECTION_SIZE 1728
824
825/* Default size of TX buf: 1MB, RX buf: 16MB */
826#define NETVSC_MIN_TX_SECTIONS 10
827#define NETVSC_DEFAULT_TX (NETVSC_SEND_BUFFER_DEFAULT \
828 / NETVSC_SEND_SECTION_SIZE)
829#define NETVSC_MIN_RX_SECTIONS 10
830#define NETVSC_DEFAULT_RX (NETVSC_RECEIVE_BUFFER_DEFAULT \
831 / NETVSC_RECV_SECTION_SIZE)
832
833#define NETVSC_RECEIVE_BUFFER_ID 0xcafe
834#define NETVSC_SEND_BUFFER_ID 0
835
836#define NETVSC_SUPPORTED_HW_FEATURES (NETIF_F_RXCSUM | NETIF_F_IP_CSUM | \
837 NETIF_F_TSO | NETIF_F_IPV6_CSUM | \
838 NETIF_F_TSO6 | NETIF_F_LRO | \
839 NETIF_F_SG | NETIF_F_RXHASH)
840
841#define VRSS_SEND_TAB_SIZE 16 /* must be power of 2 */
842#define VRSS_CHANNEL_MAX 64
843#define VRSS_CHANNEL_DEFAULT 8
844
845#define RNDIS_MAX_PKT_DEFAULT 8
846#define RNDIS_PKT_ALIGN_DEFAULT 8
847
848#define NETVSC_XDP_HDRM 256
849
850#define NETVSC_XFER_HEADER_SIZE(rng_cnt) \
851 (offsetof(struct vmtransfer_page_packet_header, ranges) + \
852 (rng_cnt) * sizeof(struct vmtransfer_page_range))
853
854struct multi_send_data {
855 struct sk_buff *skb; /* skb containing the pkt */
856 struct hv_netvsc_packet *pkt; /* netvsc pkt pending */
857 u32 count; /* counter of batched packets */
858};
859
860struct recv_comp_data {
861 u64 tid; /* transaction id */
862 u32 status;
863};
864
865struct multi_recv_comp {
866 struct recv_comp_data *slots;
867 u32 first; /* first data entry */
868 u32 next; /* next entry for writing */
869};
870
871#define NVSP_RSC_MAX 562 /* Max #RSC frags in a vmbus xfer page pkt */
872
873struct nvsc_rsc {
874 const struct ndis_pkt_8021q_info *vlan;
875 const struct ndis_tcp_ip_checksum_info *csum_info;
876 const u32 *hash_info;
877 u8 is_last; /* last RNDIS msg in a vmtransfer_page */
878 u32 cnt; /* #fragments in an RSC packet */
879 u32 pktlen; /* Full packet length */
880 void *data[NVSP_RSC_MAX];
881 u32 len[NVSP_RSC_MAX];
882};
883
884struct netvsc_stats {
885 u64 packets;
886 u64 bytes;
887 u64 broadcast;
888 u64 multicast;
889 u64 xdp_drop;
890 struct u64_stats_sync syncp;
891};
892
893struct netvsc_ethtool_stats {
894 unsigned long tx_scattered;
895 unsigned long tx_no_memory;
896 unsigned long tx_no_space;
897 unsigned long tx_too_big;
898 unsigned long tx_busy;
899 unsigned long tx_send_full;
900 unsigned long rx_comp_busy;
901 unsigned long rx_no_memory;
902 unsigned long stop_queue;
903 unsigned long wake_queue;
904 unsigned long vlan_error;
905};
906
907struct netvsc_ethtool_pcpu_stats {
908 u64 rx_packets;
909 u64 rx_bytes;
910 u64 tx_packets;
911 u64 tx_bytes;
912 u64 vf_rx_packets;
913 u64 vf_rx_bytes;
914 u64 vf_tx_packets;
915 u64 vf_tx_bytes;
916};
917
918struct netvsc_vf_pcpu_stats {
919 u64 rx_packets;
920 u64 rx_bytes;
921 u64 tx_packets;
922 u64 tx_bytes;
923 struct u64_stats_sync syncp;
924 u32 tx_dropped;
925};
926
927struct netvsc_reconfig {
928 struct list_head list;
929 u32 event;
930};
931
932/* L4 hash bits for different protocols */
933#define HV_TCP4_L4HASH 1
934#define HV_TCP6_L4HASH 2
935#define HV_UDP4_L4HASH 4
936#define HV_UDP6_L4HASH 8
937#define HV_DEFAULT_L4HASH (HV_TCP4_L4HASH | HV_TCP6_L4HASH | HV_UDP4_L4HASH | \
938 HV_UDP6_L4HASH)
939
940/* The context of the netvsc device */
941struct net_device_context {
942 /* point back to our device context */
943 struct hv_device *device_ctx;
944 /* netvsc_device */
945 struct netvsc_device __rcu *nvdev;
946 /* list of netvsc net_devices */
947 struct list_head list;
948 /* reconfigure work */
949 struct delayed_work dwork;
950 /* last reconfig time */
951 unsigned long last_reconfig;
952 /* reconfig events */
953 struct list_head reconfig_events;
954 /* list protection */
955 spinlock_t lock;
956
957 u32 msg_enable; /* debug level */
958
959 u32 tx_checksum_mask;
960
961 u32 tx_table[VRSS_SEND_TAB_SIZE];
962
963 u16 rx_table[ITAB_NUM];
964
965 /* Ethtool settings */
966 u8 duplex;
967 u32 speed;
968 u32 l4_hash; /* L4 hash settings */
969 struct netvsc_ethtool_stats eth_stats;
970
971 /* State to manage the associated VF interface. */
972 struct net_device __rcu *vf_netdev;
973 struct netvsc_vf_pcpu_stats __percpu *vf_stats;
974 struct delayed_work vf_takeover;
975
976 /* 1: allocated, serial number is valid. 0: not allocated */
977 u32 vf_alloc;
978 /* Serial number of the VF to team with */
979 u32 vf_serial;
980
981 /* Is the current data path through the VF NIC? */
982 bool data_path_is_vf;
983
984 /* Used to temporarily save the config info across hibernation */
985 struct netvsc_device_info *saved_netvsc_dev_info;
986};
987
988/* Per channel data */
989struct netvsc_channel {
990 struct vmbus_channel *channel;
991 struct netvsc_device *net_device;
992 const struct vmpacket_descriptor *desc;
993 struct napi_struct napi;
994 struct multi_send_data msd;
995 struct multi_recv_comp mrc;
996 atomic_t queue_sends;
997 struct nvsc_rsc rsc;
998
999 struct bpf_prog __rcu *bpf_prog;
1000 struct xdp_rxq_info xdp_rxq;
1001
1002 struct netvsc_stats tx_stats;
1003 struct netvsc_stats rx_stats;
1004};
1005
1006/* Per netvsc device */
1007struct netvsc_device {
1008 u32 nvsp_version;
1009
1010 wait_queue_head_t wait_drain;
1011 bool destroy;
1012 bool tx_disable; /* if true, do not wake up queue again */
1013
1014 /* Receive buffer allocated by us but manages by NetVSP */
1015 void *recv_buf;
1016 u32 recv_buf_size; /* allocated bytes */
1017 u32 recv_buf_gpadl_handle;
1018 u32 recv_section_cnt;
1019 u32 recv_section_size;
1020 u32 recv_completion_cnt;
1021
1022 /* Send buffer allocated by us */
1023 void *send_buf;
1024 u32 send_buf_gpadl_handle;
1025 u32 send_section_cnt;
1026 u32 send_section_size;
1027 unsigned long *send_section_map;
1028
1029 /* Used for NetVSP initialization protocol */
1030 struct completion channel_init_wait;
1031 struct nvsp_message channel_init_pkt;
1032
1033 struct nvsp_message revoke_packet;
1034
1035 u32 max_chn;
1036 u32 num_chn;
1037
1038 atomic_t open_chn;
1039 struct work_struct subchan_work;
1040 wait_queue_head_t subchan_open;
1041
1042 struct rndis_device *extension;
1043
1044 u32 max_pkt; /* max number of pkt in one send, e.g. 8 */
1045 u32 pkt_align; /* alignment bytes, e.g. 8 */
1046
1047 struct netvsc_channel chan_table[VRSS_CHANNEL_MAX];
1048
1049 struct rcu_head rcu;
1050};
1051
1052/* NdisInitialize message */
1053struct rndis_initialize_request {
1054 u32 req_id;
1055 u32 major_ver;
1056 u32 minor_ver;
1057 u32 max_xfer_size;
1058};
1059
1060/* Response to NdisInitialize */
1061struct rndis_initialize_complete {
1062 u32 req_id;
1063 u32 status;
1064 u32 major_ver;
1065 u32 minor_ver;
1066 u32 dev_flags;
1067 u32 medium;
1068 u32 max_pkt_per_msg;
1069 u32 max_xfer_size;
1070 u32 pkt_alignment_factor;
1071 u32 af_list_offset;
1072 u32 af_list_size;
1073};
1074
1075/* Call manager devices only: Information about an address family */
1076/* supported by the device is appended to the response to NdisInitialize. */
1077struct rndis_co_address_family {
1078 u32 address_family;
1079 u32 major_ver;
1080 u32 minor_ver;
1081};
1082
1083/* NdisHalt message */
1084struct rndis_halt_request {
1085 u32 req_id;
1086};
1087
1088/* NdisQueryRequest message */
1089struct rndis_query_request {
1090 u32 req_id;
1091 u32 oid;
1092 u32 info_buflen;
1093 u32 info_buf_offset;
1094 u32 dev_vc_handle;
1095};
1096
1097/* Response to NdisQueryRequest */
1098struct rndis_query_complete {
1099 u32 req_id;
1100 u32 status;
1101 u32 info_buflen;
1102 u32 info_buf_offset;
1103};
1104
1105/* NdisSetRequest message */
1106struct rndis_set_request {
1107 u32 req_id;
1108 u32 oid;
1109 u32 info_buflen;
1110 u32 info_buf_offset;
1111 u32 dev_vc_handle;
1112};
1113
1114/* Response to NdisSetRequest */
1115struct rndis_set_complete {
1116 u32 req_id;
1117 u32 status;
1118};
1119
1120/* NdisReset message */
1121struct rndis_reset_request {
1122 u32 reserved;
1123};
1124
1125/* Response to NdisReset */
1126struct rndis_reset_complete {
1127 u32 status;
1128 u32 addressing_reset;
1129};
1130
1131/* NdisMIndicateStatus message */
1132struct rndis_indicate_status {
1133 u32 status;
1134 u32 status_buflen;
1135 u32 status_buf_offset;
1136};
1137
1138/* Diagnostic information passed as the status buffer in */
1139/* struct rndis_indicate_status messages signifying error conditions. */
1140struct rndis_diagnostic_info {
1141 u32 diag_status;
1142 u32 error_offset;
1143};
1144
1145/* NdisKeepAlive message */
1146struct rndis_keepalive_request {
1147 u32 req_id;
1148};
1149
1150/* Response to NdisKeepAlive */
1151struct rndis_keepalive_complete {
1152 u32 req_id;
1153 u32 status;
1154};
1155
1156/*
1157 * Data message. All Offset fields contain byte offsets from the beginning of
1158 * struct rndis_packet. All Length fields are in bytes. VcHandle is set
1159 * to 0 for connectionless data, otherwise it contains the VC handle.
1160 */
1161struct rndis_packet {
1162 u32 data_offset;
1163 u32 data_len;
1164 u32 oob_data_offset;
1165 u32 oob_data_len;
1166 u32 num_oob_data_elements;
1167 u32 per_pkt_info_offset;
1168 u32 per_pkt_info_len;
1169 u32 vc_handle;
1170 u32 reserved;
1171};
1172
1173/* Optional Out of Band data associated with a Data message. */
1174struct rndis_oobd {
1175 u32 size;
1176 u32 type;
1177 u32 class_info_offset;
1178};
1179
1180/* Packet extension field contents associated with a Data message. */
1181struct rndis_per_packet_info {
1182 u32 size;
1183 u32 type:31;
1184 u32 internal:1;
1185 u32 ppi_offset;
1186};
1187
1188enum ndis_per_pkt_info_type {
1189 TCPIP_CHKSUM_PKTINFO,
1190 IPSEC_PKTINFO,
1191 TCP_LARGESEND_PKTINFO,
1192 CLASSIFICATION_HANDLE_PKTINFO,
1193 NDIS_RESERVED,
1194 SG_LIST_PKTINFO,
1195 IEEE_8021Q_INFO,
1196 ORIGINAL_PKTINFO,
1197 PACKET_CANCEL_ID,
1198 NBL_HASH_VALUE = PACKET_CANCEL_ID,
1199 ORIGINAL_NET_BUFLIST,
1200 CACHED_NET_BUFLIST,
1201 SHORT_PKT_PADINFO,
1202 MAX_PER_PKT_INFO
1203};
1204
1205enum rndis_per_pkt_info_interal_type {
1206 RNDIS_PKTINFO_ID = 1,
1207 /* Add more members here */
1208
1209 RNDIS_PKTINFO_MAX
1210};
1211
1212#define RNDIS_PKTINFO_SUBALLOC BIT(0)
1213#define RNDIS_PKTINFO_1ST_FRAG BIT(1)
1214#define RNDIS_PKTINFO_LAST_FRAG BIT(2)
1215
1216#define RNDIS_PKTINFO_ID_V1 1
1217
1218struct rndis_pktinfo_id {
1219 u8 ver;
1220 u8 flag;
1221 u16 pkt_id;
1222};
1223
1224struct ndis_pkt_8021q_info {
1225 union {
1226 struct {
1227 u32 pri:3; /* User Priority */
1228 u32 cfi:1; /* Canonical Format ID */
1229 u32 vlanid:12; /* VLAN ID */
1230 u32 reserved:16;
1231 };
1232 u32 value;
1233 };
1234};
1235
1236struct ndis_object_header {
1237 u8 type;
1238 u8 revision;
1239 u16 size;
1240};
1241
1242#define NDIS_OBJECT_TYPE_DEFAULT 0x80
1243#define NDIS_OFFLOAD_PARAMETERS_REVISION_3 3
1244#define NDIS_OFFLOAD_PARAMETERS_REVISION_2 2
1245#define NDIS_OFFLOAD_PARAMETERS_REVISION_1 1
1246
1247#define NDIS_OFFLOAD_PARAMETERS_NO_CHANGE 0
1248#define NDIS_OFFLOAD_PARAMETERS_LSOV2_DISABLED 1
1249#define NDIS_OFFLOAD_PARAMETERS_LSOV2_ENABLED 2
1250#define NDIS_OFFLOAD_PARAMETERS_LSOV1_ENABLED 2
1251#define NDIS_OFFLOAD_PARAMETERS_RSC_DISABLED 1
1252#define NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED 2
1253#define NDIS_OFFLOAD_PARAMETERS_TX_RX_DISABLED 1
1254#define NDIS_OFFLOAD_PARAMETERS_TX_ENABLED_RX_DISABLED 2
1255#define NDIS_OFFLOAD_PARAMETERS_RX_ENABLED_TX_DISABLED 3
1256#define NDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED 4
1257
1258#define NDIS_TCP_LARGE_SEND_OFFLOAD_V2_TYPE 1
1259#define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV4 0
1260#define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV6 1
1261
1262#define VERSION_4_OFFLOAD_SIZE 22
1263/*
1264 * New offload OIDs for NDIS 6
1265 */
1266#define OID_TCP_OFFLOAD_CURRENT_CONFIG 0xFC01020B /* query only */
1267#define OID_TCP_OFFLOAD_PARAMETERS 0xFC01020C /* set only */
1268#define OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020D/* query only */
1269#define OID_TCP_CONNECTION_OFFLOAD_CURRENT_CONFIG 0xFC01020E /* query only */
1270#define OID_TCP_CONNECTION_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020F /* query */
1271#define OID_OFFLOAD_ENCAPSULATION 0x0101010A /* set/query */
1272
1273/*
1274 * OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES
1275 * ndis_type: NDIS_OBJTYPE_OFFLOAD
1276 */
1277
1278#define NDIS_OFFLOAD_ENCAP_NONE 0x0000
1279#define NDIS_OFFLOAD_ENCAP_NULL 0x0001
1280#define NDIS_OFFLOAD_ENCAP_8023 0x0002
1281#define NDIS_OFFLOAD_ENCAP_8023PQ 0x0004
1282#define NDIS_OFFLOAD_ENCAP_8023PQ_OOB 0x0008
1283#define NDIS_OFFLOAD_ENCAP_RFC1483 0x0010
1284
1285struct ndis_csum_offload {
1286 u32 ip4_txenc;
1287 u32 ip4_txcsum;
1288#define NDIS_TXCSUM_CAP_IP4OPT 0x001
1289#define NDIS_TXCSUM_CAP_TCP4OPT 0x004
1290#define NDIS_TXCSUM_CAP_TCP4 0x010
1291#define NDIS_TXCSUM_CAP_UDP4 0x040
1292#define NDIS_TXCSUM_CAP_IP4 0x100
1293
1294#define NDIS_TXCSUM_ALL_TCP4 (NDIS_TXCSUM_CAP_TCP4 | NDIS_TXCSUM_CAP_TCP4OPT)
1295
1296 u32 ip4_rxenc;
1297 u32 ip4_rxcsum;
1298#define NDIS_RXCSUM_CAP_IP4OPT 0x001
1299#define NDIS_RXCSUM_CAP_TCP4OPT 0x004
1300#define NDIS_RXCSUM_CAP_TCP4 0x010
1301#define NDIS_RXCSUM_CAP_UDP4 0x040
1302#define NDIS_RXCSUM_CAP_IP4 0x100
1303 u32 ip6_txenc;
1304 u32 ip6_txcsum;
1305#define NDIS_TXCSUM_CAP_IP6EXT 0x001
1306#define NDIS_TXCSUM_CAP_TCP6OPT 0x004
1307#define NDIS_TXCSUM_CAP_TCP6 0x010
1308#define NDIS_TXCSUM_CAP_UDP6 0x040
1309 u32 ip6_rxenc;
1310 u32 ip6_rxcsum;
1311#define NDIS_RXCSUM_CAP_IP6EXT 0x001
1312#define NDIS_RXCSUM_CAP_TCP6OPT 0x004
1313#define NDIS_RXCSUM_CAP_TCP6 0x010
1314#define NDIS_RXCSUM_CAP_UDP6 0x040
1315
1316#define NDIS_TXCSUM_ALL_TCP6 (NDIS_TXCSUM_CAP_TCP6 | \
1317 NDIS_TXCSUM_CAP_TCP6OPT | \
1318 NDIS_TXCSUM_CAP_IP6EXT)
1319};
1320
1321struct ndis_lsov1_offload {
1322 u32 encap;
1323 u32 maxsize;
1324 u32 minsegs;
1325 u32 opts;
1326};
1327
1328struct ndis_ipsecv1_offload {
1329 u32 encap;
1330 u32 ah_esp;
1331 u32 xport_tun;
1332 u32 ip4_opts;
1333 u32 flags;
1334 u32 ip4_ah;
1335 u32 ip4_esp;
1336};
1337
1338struct ndis_lsov2_offload {
1339 u32 ip4_encap;
1340 u32 ip4_maxsz;
1341 u32 ip4_minsg;
1342 u32 ip6_encap;
1343 u32 ip6_maxsz;
1344 u32 ip6_minsg;
1345 u32 ip6_opts;
1346#define NDIS_LSOV2_CAP_IP6EXT 0x001
1347#define NDIS_LSOV2_CAP_TCP6OPT 0x004
1348
1349#define NDIS_LSOV2_CAP_IP6 (NDIS_LSOV2_CAP_IP6EXT | \
1350 NDIS_LSOV2_CAP_TCP6OPT)
1351};
1352
1353struct ndis_ipsecv2_offload {
1354 u32 encap;
1355 u8 ip6;
1356 u8 ip4opt;
1357 u8 ip6ext;
1358 u8 ah;
1359 u8 esp;
1360 u8 ah_esp;
1361 u8 xport;
1362 u8 tun;
1363 u8 xport_tun;
1364 u8 lso;
1365 u8 extseq;
1366 u32 udp_esp;
1367 u32 auth;
1368 u32 crypto;
1369 u32 sa_caps;
1370};
1371
1372struct ndis_rsc_offload {
1373 u8 ip4;
1374 u8 ip6;
1375};
1376
1377struct ndis_encap_offload {
1378 u32 flags;
1379 u32 maxhdr;
1380};
1381
1382struct ndis_offload {
1383 struct ndis_object_header header;
1384 struct ndis_csum_offload csum;
1385 struct ndis_lsov1_offload lsov1;
1386 struct ndis_ipsecv1_offload ipsecv1;
1387 struct ndis_lsov2_offload lsov2;
1388 u32 flags;
1389 /* NDIS >= 6.1 */
1390 struct ndis_ipsecv2_offload ipsecv2;
1391 /* NDIS >= 6.30 */
1392 struct ndis_rsc_offload rsc;
1393 struct ndis_encap_offload encap_gre;
1394};
1395
1396#define NDIS_OFFLOAD_SIZE sizeof(struct ndis_offload)
1397#define NDIS_OFFLOAD_SIZE_6_0 offsetof(struct ndis_offload, ipsecv2)
1398#define NDIS_OFFLOAD_SIZE_6_1 offsetof(struct ndis_offload, rsc)
1399
1400struct ndis_offload_params {
1401 struct ndis_object_header header;
1402 u8 ip_v4_csum;
1403 u8 tcp_ip_v4_csum;
1404 u8 udp_ip_v4_csum;
1405 u8 tcp_ip_v6_csum;
1406 u8 udp_ip_v6_csum;
1407 u8 lso_v1;
1408 u8 ip_sec_v1;
1409 u8 lso_v2_ipv4;
1410 u8 lso_v2_ipv6;
1411 u8 tcp_connection_ip_v4;
1412 u8 tcp_connection_ip_v6;
1413 u32 flags;
1414 u8 ip_sec_v2;
1415 u8 ip_sec_v2_ip_v4;
1416 struct {
1417 u8 rsc_ip_v4;
1418 u8 rsc_ip_v6;
1419 };
1420 struct {
1421 u8 encapsulated_packet_task_offload;
1422 u8 encapsulation_types;
1423 };
1424};
1425
1426struct ndis_tcp_ip_checksum_info {
1427 union {
1428 struct {
1429 u32 is_ipv4:1;
1430 u32 is_ipv6:1;
1431 u32 tcp_checksum:1;
1432 u32 udp_checksum:1;
1433 u32 ip_header_checksum:1;
1434 u32 reserved:11;
1435 u32 tcp_header_offset:10;
1436 } transmit;
1437 struct {
1438 u32 tcp_checksum_failed:1;
1439 u32 udp_checksum_failed:1;
1440 u32 ip_checksum_failed:1;
1441 u32 tcp_checksum_succeeded:1;
1442 u32 udp_checksum_succeeded:1;
1443 u32 ip_checksum_succeeded:1;
1444 u32 loopback:1;
1445 u32 tcp_checksum_value_invalid:1;
1446 u32 ip_checksum_value_invalid:1;
1447 } receive;
1448 u32 value;
1449 };
1450};
1451
1452struct ndis_tcp_lso_info {
1453 union {
1454 struct {
1455 u32 unused:30;
1456 u32 type:1;
1457 u32 reserved2:1;
1458 } transmit;
1459 struct {
1460 u32 mss:20;
1461 u32 tcp_header_offset:10;
1462 u32 type:1;
1463 u32 reserved2:1;
1464 } lso_v1_transmit;
1465 struct {
1466 u32 tcp_payload:30;
1467 u32 type:1;
1468 u32 reserved2:1;
1469 } lso_v1_transmit_complete;
1470 struct {
1471 u32 mss:20;
1472 u32 tcp_header_offset:10;
1473 u32 type:1;
1474 u32 ip_version:1;
1475 } lso_v2_transmit;
1476 struct {
1477 u32 reserved:30;
1478 u32 type:1;
1479 u32 reserved2:1;
1480 } lso_v2_transmit_complete;
1481 u32 value;
1482 };
1483};
1484
1485#define NDIS_VLAN_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1486 sizeof(struct ndis_pkt_8021q_info))
1487
1488#define NDIS_CSUM_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1489 sizeof(struct ndis_tcp_ip_checksum_info))
1490
1491#define NDIS_LSO_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1492 sizeof(struct ndis_tcp_lso_info))
1493
1494#define NDIS_HASH_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1495 sizeof(u32))
1496
1497/* Total size of all PPI data */
1498#define NDIS_ALL_PPI_SIZE (NDIS_VLAN_PPI_SIZE + NDIS_CSUM_PPI_SIZE + \
1499 NDIS_LSO_PPI_SIZE + NDIS_HASH_PPI_SIZE)
1500
1501/* Format of Information buffer passed in a SetRequest for the OID */
1502/* OID_GEN_RNDIS_CONFIG_PARAMETER. */
1503struct rndis_config_parameter_info {
1504 u32 parameter_name_offset;
1505 u32 parameter_name_length;
1506 u32 parameter_type;
1507 u32 parameter_value_offset;
1508 u32 parameter_value_length;
1509};
1510
1511/* Values for ParameterType in struct rndis_config_parameter_info */
1512#define RNDIS_CONFIG_PARAM_TYPE_INTEGER 0
1513#define RNDIS_CONFIG_PARAM_TYPE_STRING 2
1514
1515/* CONDIS Miniport messages for connection oriented devices */
1516/* that do not implement a call manager. */
1517
1518/* CoNdisMiniportCreateVc message */
1519struct rcondis_mp_create_vc {
1520 u32 req_id;
1521 u32 ndis_vc_handle;
1522};
1523
1524/* Response to CoNdisMiniportCreateVc */
1525struct rcondis_mp_create_vc_complete {
1526 u32 req_id;
1527 u32 dev_vc_handle;
1528 u32 status;
1529};
1530
1531/* CoNdisMiniportDeleteVc message */
1532struct rcondis_mp_delete_vc {
1533 u32 req_id;
1534 u32 dev_vc_handle;
1535};
1536
1537/* Response to CoNdisMiniportDeleteVc */
1538struct rcondis_mp_delete_vc_complete {
1539 u32 req_id;
1540 u32 status;
1541};
1542
1543/* CoNdisMiniportQueryRequest message */
1544struct rcondis_mp_query_request {
1545 u32 req_id;
1546 u32 request_type;
1547 u32 oid;
1548 u32 dev_vc_handle;
1549 u32 info_buflen;
1550 u32 info_buf_offset;
1551};
1552
1553/* CoNdisMiniportSetRequest message */
1554struct rcondis_mp_set_request {
1555 u32 req_id;
1556 u32 request_type;
1557 u32 oid;
1558 u32 dev_vc_handle;
1559 u32 info_buflen;
1560 u32 info_buf_offset;
1561};
1562
1563/* CoNdisIndicateStatus message */
1564struct rcondis_indicate_status {
1565 u32 ndis_vc_handle;
1566 u32 status;
1567 u32 status_buflen;
1568 u32 status_buf_offset;
1569};
1570
1571/* CONDIS Call/VC parameters */
1572struct rcondis_specific_parameters {
1573 u32 parameter_type;
1574 u32 parameter_length;
1575 u32 parameter_lffset;
1576};
1577
1578struct rcondis_media_parameters {
1579 u32 flags;
1580 u32 reserved1;
1581 u32 reserved2;
1582 struct rcondis_specific_parameters media_specific;
1583};
1584
1585struct rndis_flowspec {
1586 u32 token_rate;
1587 u32 token_bucket_size;
1588 u32 peak_bandwidth;
1589 u32 latency;
1590 u32 delay_variation;
1591 u32 service_type;
1592 u32 max_sdu_size;
1593 u32 minimum_policed_size;
1594};
1595
1596struct rcondis_call_manager_parameters {
1597 struct rndis_flowspec transmit;
1598 struct rndis_flowspec receive;
1599 struct rcondis_specific_parameters call_mgr_specific;
1600};
1601
1602/* CoNdisMiniportActivateVc message */
1603struct rcondis_mp_activate_vc_request {
1604 u32 req_id;
1605 u32 flags;
1606 u32 dev_vc_handle;
1607 u32 media_params_offset;
1608 u32 media_params_length;
1609 u32 call_mgr_params_offset;
1610 u32 call_mgr_params_length;
1611};
1612
1613/* Response to CoNdisMiniportActivateVc */
1614struct rcondis_mp_activate_vc_complete {
1615 u32 req_id;
1616 u32 status;
1617};
1618
1619/* CoNdisMiniportDeactivateVc message */
1620struct rcondis_mp_deactivate_vc_request {
1621 u32 req_id;
1622 u32 flags;
1623 u32 dev_vc_handle;
1624};
1625
1626/* Response to CoNdisMiniportDeactivateVc */
1627struct rcondis_mp_deactivate_vc_complete {
1628 u32 req_id;
1629 u32 status;
1630};
1631
1632
1633/* union with all of the RNDIS messages */
1634union rndis_message_container {
1635 struct rndis_packet pkt;
1636 struct rndis_initialize_request init_req;
1637 struct rndis_halt_request halt_req;
1638 struct rndis_query_request query_req;
1639 struct rndis_set_request set_req;
1640 struct rndis_reset_request reset_req;
1641 struct rndis_keepalive_request keep_alive_req;
1642 struct rndis_indicate_status indicate_status;
1643 struct rndis_initialize_complete init_complete;
1644 struct rndis_query_complete query_complete;
1645 struct rndis_set_complete set_complete;
1646 struct rndis_reset_complete reset_complete;
1647 struct rndis_keepalive_complete keep_alive_complete;
1648 struct rcondis_mp_create_vc co_miniport_create_vc;
1649 struct rcondis_mp_delete_vc co_miniport_delete_vc;
1650 struct rcondis_indicate_status co_indicate_status;
1651 struct rcondis_mp_activate_vc_request co_miniport_activate_vc;
1652 struct rcondis_mp_deactivate_vc_request co_miniport_deactivate_vc;
1653 struct rcondis_mp_create_vc_complete co_miniport_create_vc_complete;
1654 struct rcondis_mp_delete_vc_complete co_miniport_delete_vc_complete;
1655 struct rcondis_mp_activate_vc_complete co_miniport_activate_vc_complete;
1656 struct rcondis_mp_deactivate_vc_complete
1657 co_miniport_deactivate_vc_complete;
1658};
1659
1660/* Remote NDIS message format */
1661struct rndis_message {
1662 u32 ndis_msg_type;
1663
1664 /* Total length of this message, from the beginning */
1665 /* of the struct rndis_message, in bytes. */
1666 u32 msg_len;
1667
1668 /* Actual message */
1669 union rndis_message_container msg;
1670};
1671
1672
1673/* Handy macros */
1674
1675/* get the size of an RNDIS message. Pass in the message type, */
1676/* struct rndis_set_request, struct rndis_packet for example */
1677#define RNDIS_MESSAGE_SIZE(msg) \
1678 (sizeof(msg) + (sizeof(struct rndis_message) - \
1679 sizeof(union rndis_message_container)))
1680
1681#define RNDIS_HEADER_SIZE (sizeof(struct rndis_message) - \
1682 sizeof(union rndis_message_container))
1683
1684#define RNDIS_AND_PPI_SIZE (sizeof(struct rndis_message) + NDIS_ALL_PPI_SIZE)
1685
1686#define NDIS_PACKET_TYPE_DIRECTED 0x00000001
1687#define NDIS_PACKET_TYPE_MULTICAST 0x00000002
1688#define NDIS_PACKET_TYPE_ALL_MULTICAST 0x00000004
1689#define NDIS_PACKET_TYPE_BROADCAST 0x00000008
1690#define NDIS_PACKET_TYPE_SOURCE_ROUTING 0x00000010
1691#define NDIS_PACKET_TYPE_PROMISCUOUS 0x00000020
1692#define NDIS_PACKET_TYPE_SMT 0x00000040
1693#define NDIS_PACKET_TYPE_ALL_LOCAL 0x00000080
1694#define NDIS_PACKET_TYPE_GROUP 0x00000100
1695#define NDIS_PACKET_TYPE_ALL_FUNCTIONAL 0x00000200
1696#define NDIS_PACKET_TYPE_FUNCTIONAL 0x00000400
1697#define NDIS_PACKET_TYPE_MAC_FRAME 0x00000800
1698
1699#define TRANSPORT_INFO_NOT_IP 0
1700#define TRANSPORT_INFO_IPV4_TCP 0x01
1701#define TRANSPORT_INFO_IPV4_UDP 0x02
1702#define TRANSPORT_INFO_IPV6_TCP 0x10
1703#define TRANSPORT_INFO_IPV6_UDP 0x20
1704
1705#endif /* _HYPERV_NET_H */