Merge tag 'mmc-v4.7-rc1' of git://git.linaro.org/people/ulf.hansson/mmc
[deliverable/linux.git] / drivers / net / hyperv / hyperv_net.h
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
41 struct 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
58 struct 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 #define HASH_KEYLEN NDIS_RSS_HASH_SECRET_KEY_MAX_SIZE_REVISION_2
88 extern u8 netvsc_hash_key[];
89
90 struct ndis_recv_scale_param { /* NDIS_RECEIVE_SCALE_PARAMETERS */
91 struct ndis_obj_header hdr;
92
93 /* Qualifies the rest of the information */
94 u16 flag;
95
96 /* The base CPU number to do receive processing. not used */
97 u16 base_cpu_number;
98
99 /* This describes the hash function and type being enabled */
100 u32 hashinfo;
101
102 /* The size of indirection table array */
103 u16 indirect_tabsize;
104
105 /* The offset of the indirection table from the beginning of this
106 * structure
107 */
108 u32 indirect_taboffset;
109
110 /* The size of the hash secret key */
111 u16 hashkey_size;
112
113 /* The offset of the secret key from the beginning of this structure */
114 u32 kashkey_offset;
115
116 u32 processor_masks_offset;
117 u32 num_processor_masks;
118 u32 processor_masks_entry_size;
119 };
120
121 /* Fwd declaration */
122 struct ndis_tcp_ip_checksum_info;
123
124 /*
125 * Represent netvsc packet which contains 1 RNDIS and 1 ethernet frame
126 * within the RNDIS
127 *
128 * The size of this structure is less than 48 bytes and we can now
129 * place this structure in the skb->cb field.
130 */
131 struct hv_netvsc_packet {
132 /* Bookkeeping stuff */
133 u8 cp_partial; /* partial copy into send buffer */
134
135 u8 rmsg_size; /* RNDIS header and PPI size */
136 u8 rmsg_pgcnt; /* page count of RNDIS header and PPI */
137 u8 page_buf_cnt;
138
139 u16 q_idx;
140 u32 send_buf_index;
141
142 u32 total_data_buflen;
143 };
144
145 struct netvsc_device_info {
146 unsigned char mac_adr[ETH_ALEN];
147 bool link_state; /* 0 - link up, 1 - link down */
148 int ring_size;
149 u32 max_num_vrss_chns;
150 u32 num_chn;
151 };
152
153 enum rndis_device_state {
154 RNDIS_DEV_UNINITIALIZED = 0,
155 RNDIS_DEV_INITIALIZING,
156 RNDIS_DEV_INITIALIZED,
157 RNDIS_DEV_DATAINITIALIZED,
158 };
159
160 struct rndis_device {
161 struct net_device *ndev;
162
163 enum rndis_device_state state;
164 bool link_state;
165 atomic_t new_req_id;
166
167 spinlock_t request_lock;
168 struct list_head req_list;
169
170 unsigned char hw_mac_adr[ETH_ALEN];
171 };
172
173
174 /* Interface */
175 struct rndis_message;
176 int netvsc_device_add(struct hv_device *device, void *additional_info);
177 int netvsc_device_remove(struct hv_device *device);
178 int netvsc_send(struct hv_device *device,
179 struct hv_netvsc_packet *packet,
180 struct rndis_message *rndis_msg,
181 struct hv_page_buffer **page_buffer,
182 struct sk_buff *skb);
183 void netvsc_linkstatus_callback(struct hv_device *device_obj,
184 struct rndis_message *resp);
185 int netvsc_recv_callback(struct hv_device *device_obj,
186 struct hv_netvsc_packet *packet,
187 void **data,
188 struct ndis_tcp_ip_checksum_info *csum_info,
189 struct vmbus_channel *channel,
190 u16 vlan_tci);
191 void netvsc_channel_cb(void *context);
192 int rndis_filter_open(struct hv_device *dev);
193 int rndis_filter_close(struct hv_device *dev);
194 int rndis_filter_device_add(struct hv_device *dev,
195 void *additional_info);
196 void rndis_filter_device_remove(struct hv_device *dev);
197 int rndis_filter_receive(struct hv_device *dev,
198 struct hv_netvsc_packet *pkt,
199 void **data,
200 struct vmbus_channel *channel);
201
202 int rndis_filter_set_packet_filter(struct rndis_device *dev, u32 new_filter);
203 int rndis_filter_set_device_mac(struct hv_device *hdev, char *mac);
204
205 void netvsc_switch_datapath(struct net_device *nv_dev, bool vf);
206
207 #define NVSP_INVALID_PROTOCOL_VERSION ((u32)0xFFFFFFFF)
208
209 #define NVSP_PROTOCOL_VERSION_1 2
210 #define NVSP_PROTOCOL_VERSION_2 0x30002
211 #define NVSP_PROTOCOL_VERSION_4 0x40000
212 #define NVSP_PROTOCOL_VERSION_5 0x50000
213
214 enum {
215 NVSP_MSG_TYPE_NONE = 0,
216
217 /* Init Messages */
218 NVSP_MSG_TYPE_INIT = 1,
219 NVSP_MSG_TYPE_INIT_COMPLETE = 2,
220
221 NVSP_VERSION_MSG_START = 100,
222
223 /* Version 1 Messages */
224 NVSP_MSG1_TYPE_SEND_NDIS_VER = NVSP_VERSION_MSG_START,
225
226 NVSP_MSG1_TYPE_SEND_RECV_BUF,
227 NVSP_MSG1_TYPE_SEND_RECV_BUF_COMPLETE,
228 NVSP_MSG1_TYPE_REVOKE_RECV_BUF,
229
230 NVSP_MSG1_TYPE_SEND_SEND_BUF,
231 NVSP_MSG1_TYPE_SEND_SEND_BUF_COMPLETE,
232 NVSP_MSG1_TYPE_REVOKE_SEND_BUF,
233
234 NVSP_MSG1_TYPE_SEND_RNDIS_PKT,
235 NVSP_MSG1_TYPE_SEND_RNDIS_PKT_COMPLETE,
236
237 /* Version 2 messages */
238 NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF,
239 NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF_COMP,
240 NVSP_MSG2_TYPE_REVOKE_CHIMNEY_DELEGATED_BUF,
241
242 NVSP_MSG2_TYPE_RESUME_CHIMNEY_RX_INDICATION,
243
244 NVSP_MSG2_TYPE_TERMINATE_CHIMNEY,
245 NVSP_MSG2_TYPE_TERMINATE_CHIMNEY_COMP,
246
247 NVSP_MSG2_TYPE_INDICATE_CHIMNEY_EVENT,
248
249 NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT,
250 NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT_COMP,
251
252 NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ,
253 NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ_COMP,
254
255 NVSP_MSG2_TYPE_ALLOC_RXBUF,
256 NVSP_MSG2_TYPE_ALLOC_RXBUF_COMP,
257
258 NVSP_MSG2_TYPE_FREE_RXBUF,
259
260 NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT,
261 NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT_COMP,
262
263 NVSP_MSG2_TYPE_SEND_NDIS_CONFIG,
264
265 NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE,
266 NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP,
267
268 NVSP_MSG2_MAX = NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP,
269
270 /* Version 4 messages */
271 NVSP_MSG4_TYPE_SEND_VF_ASSOCIATION,
272 NVSP_MSG4_TYPE_SWITCH_DATA_PATH,
273 NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED,
274
275 NVSP_MSG4_MAX = NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED,
276
277 /* Version 5 messages */
278 NVSP_MSG5_TYPE_OID_QUERY_EX,
279 NVSP_MSG5_TYPE_OID_QUERY_EX_COMP,
280 NVSP_MSG5_TYPE_SUBCHANNEL,
281 NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE,
282
283 NVSP_MSG5_MAX = NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE,
284 };
285
286 enum {
287 NVSP_STAT_NONE = 0,
288 NVSP_STAT_SUCCESS,
289 NVSP_STAT_FAIL,
290 NVSP_STAT_PROTOCOL_TOO_NEW,
291 NVSP_STAT_PROTOCOL_TOO_OLD,
292 NVSP_STAT_INVALID_RNDIS_PKT,
293 NVSP_STAT_BUSY,
294 NVSP_STAT_PROTOCOL_UNSUPPORTED,
295 NVSP_STAT_MAX,
296 };
297
298 struct nvsp_message_header {
299 u32 msg_type;
300 };
301
302 /* Init Messages */
303
304 /*
305 * This message is used by the VSC to initialize the channel after the channels
306 * has been opened. This message should never include anything other then
307 * versioning (i.e. this message will be the same for ever).
308 */
309 struct nvsp_message_init {
310 u32 min_protocol_ver;
311 u32 max_protocol_ver;
312 } __packed;
313
314 /*
315 * This message is used by the VSP to complete the initialization of the
316 * channel. This message should never include anything other then versioning
317 * (i.e. this message will be the same for ever).
318 */
319 struct nvsp_message_init_complete {
320 u32 negotiated_protocol_ver;
321 u32 max_mdl_chain_len;
322 u32 status;
323 } __packed;
324
325 union nvsp_message_init_uber {
326 struct nvsp_message_init init;
327 struct nvsp_message_init_complete init_complete;
328 } __packed;
329
330 /* Version 1 Messages */
331
332 /*
333 * This message is used by the VSC to send the NDIS version to the VSP. The VSP
334 * can use this information when handling OIDs sent by the VSC.
335 */
336 struct nvsp_1_message_send_ndis_version {
337 u32 ndis_major_ver;
338 u32 ndis_minor_ver;
339 } __packed;
340
341 /*
342 * This message is used by the VSC to send a receive buffer to the VSP. The VSP
343 * can then use the receive buffer to send data to the VSC.
344 */
345 struct nvsp_1_message_send_receive_buffer {
346 u32 gpadl_handle;
347 u16 id;
348 } __packed;
349
350 struct nvsp_1_receive_buffer_section {
351 u32 offset;
352 u32 sub_alloc_size;
353 u32 num_sub_allocs;
354 u32 end_offset;
355 } __packed;
356
357 /*
358 * This message is used by the VSP to acknowledge a receive buffer send by the
359 * VSC. This message must be sent by the VSP before the VSP uses the receive
360 * buffer.
361 */
362 struct nvsp_1_message_send_receive_buffer_complete {
363 u32 status;
364 u32 num_sections;
365
366 /*
367 * The receive buffer is split into two parts, a large suballocation
368 * section and a small suballocation section. These sections are then
369 * suballocated by a certain size.
370 */
371
372 /*
373 * For example, the following break up of the receive buffer has 6
374 * large suballocations and 10 small suballocations.
375 */
376
377 /*
378 * | Large Section | | Small Section |
379 * ------------------------------------------------------------
380 * | | | | | | | | | | | | | | | | | |
381 * | |
382 * LargeOffset SmallOffset
383 */
384
385 struct nvsp_1_receive_buffer_section sections[1];
386 } __packed;
387
388 /*
389 * This message is sent by the VSC to revoke the receive buffer. After the VSP
390 * completes this transaction, the vsp should never use the receive buffer
391 * again.
392 */
393 struct nvsp_1_message_revoke_receive_buffer {
394 u16 id;
395 };
396
397 /*
398 * This message is used by the VSC to send a send buffer to the VSP. The VSC
399 * can then use the send buffer to send data to the VSP.
400 */
401 struct nvsp_1_message_send_send_buffer {
402 u32 gpadl_handle;
403 u16 id;
404 } __packed;
405
406 /*
407 * This message is used by the VSP to acknowledge a send buffer sent by the
408 * VSC. This message must be sent by the VSP before the VSP uses the sent
409 * buffer.
410 */
411 struct nvsp_1_message_send_send_buffer_complete {
412 u32 status;
413
414 /*
415 * The VSC gets to choose the size of the send buffer and the VSP gets
416 * to choose the sections size of the buffer. This was done to enable
417 * dynamic reconfigurations when the cost of GPA-direct buffers
418 * decreases.
419 */
420 u32 section_size;
421 } __packed;
422
423 /*
424 * This message is sent by the VSC to revoke the send buffer. After the VSP
425 * completes this transaction, the vsp should never use the send buffer again.
426 */
427 struct nvsp_1_message_revoke_send_buffer {
428 u16 id;
429 };
430
431 /*
432 * This message is used by both the VSP and the VSC to send a RNDIS message to
433 * the opposite channel endpoint.
434 */
435 struct nvsp_1_message_send_rndis_packet {
436 /*
437 * This field is specified by RNIDS. They assume there's two different
438 * channels of communication. However, the Network VSP only has one.
439 * Therefore, the channel travels with the RNDIS packet.
440 */
441 u32 channel_type;
442
443 /*
444 * This field is used to send part or all of the data through a send
445 * buffer. This values specifies an index into the send buffer. If the
446 * index is 0xFFFFFFFF, then the send buffer is not being used and all
447 * of the data was sent through other VMBus mechanisms.
448 */
449 u32 send_buf_section_index;
450 u32 send_buf_section_size;
451 } __packed;
452
453 /*
454 * This message is used by both the VSP and the VSC to complete a RNDIS message
455 * to the opposite channel endpoint. At this point, the initiator of this
456 * message cannot use any resources associated with the original RNDIS packet.
457 */
458 struct nvsp_1_message_send_rndis_packet_complete {
459 u32 status;
460 };
461
462 union nvsp_1_message_uber {
463 struct nvsp_1_message_send_ndis_version send_ndis_ver;
464
465 struct nvsp_1_message_send_receive_buffer send_recv_buf;
466 struct nvsp_1_message_send_receive_buffer_complete
467 send_recv_buf_complete;
468 struct nvsp_1_message_revoke_receive_buffer revoke_recv_buf;
469
470 struct nvsp_1_message_send_send_buffer send_send_buf;
471 struct nvsp_1_message_send_send_buffer_complete send_send_buf_complete;
472 struct nvsp_1_message_revoke_send_buffer revoke_send_buf;
473
474 struct nvsp_1_message_send_rndis_packet send_rndis_pkt;
475 struct nvsp_1_message_send_rndis_packet_complete
476 send_rndis_pkt_complete;
477 } __packed;
478
479
480 /*
481 * Network VSP protocol version 2 messages:
482 */
483 struct nvsp_2_vsc_capability {
484 union {
485 u64 data;
486 struct {
487 u64 vmq:1;
488 u64 chimney:1;
489 u64 sriov:1;
490 u64 ieee8021q:1;
491 u64 correlation_id:1;
492 };
493 };
494 } __packed;
495
496 struct 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 */
503 struct 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 */
514 struct 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
527 struct nvsp_2_free_rxbuf {
528 u64 recv_buf_id;
529 } __packed;
530
531 union 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
538 struct 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
546 enum nvsp_vm_datapath {
547 NVSP_DATAPATH_SYNTHETIC = 0,
548 NVSP_DATAPATH_VF,
549 NVSP_DATAPATH_MAX
550 };
551
552 struct nvsp_4_sw_datapath {
553 u32 active_datapath; /* active data path in VM */
554 } __packed;
555
556 union nvsp_4_message_uber {
557 struct nvsp_4_send_vf_association vf_assoc;
558 struct nvsp_4_sw_datapath active_dp;
559 } __packed;
560
561 enum nvsp_subchannel_operation {
562 NVSP_SUBCHANNEL_NONE = 0,
563 NVSP_SUBCHANNEL_ALLOCATE,
564 NVSP_SUBCHANNEL_MAX
565 };
566
567 struct nvsp_5_subchannel_request {
568 u32 op;
569 u32 num_subchannels;
570 } __packed;
571
572 struct nvsp_5_subchannel_complete {
573 u32 status;
574 u32 num_subchannels; /* Actual number of subchannels allocated */
575 } __packed;
576
577 struct 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 indireciton 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
588 union 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
594 union 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 */
603 struct nvsp_message {
604 struct nvsp_message_header hdr;
605 union nvsp_all_messages msg;
606 } __packed;
607
608
609 #define NETVSC_MTU 65536
610 #define NETVSC_MTU_MIN 68
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
629 struct 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
635 struct netvsc_stats {
636 u64 packets;
637 u64 bytes;
638 struct u64_stats_sync syncp;
639 };
640
641 struct netvsc_reconfig {
642 struct list_head list;
643 u32 event;
644 };
645
646 struct garp_wrk {
647 struct work_struct dwrk;
648 struct net_device *netdev;
649 struct netvsc_device *netvsc_dev;
650 };
651
652 /* The context of the netvsc device */
653 struct net_device_context {
654 /* point back to our device context */
655 struct hv_device *device_ctx;
656 /* netvsc_device */
657 struct netvsc_device *nvdev;
658 /* reconfigure work */
659 struct delayed_work dwork;
660 /* last reconfig time */
661 unsigned long last_reconfig;
662 /* reconfig events */
663 struct list_head reconfig_events;
664 /* list protection */
665 spinlock_t lock;
666
667 struct work_struct work;
668 u32 msg_enable; /* debug level */
669 struct garp_wrk gwrk;
670
671 struct netvsc_stats __percpu *tx_stats;
672 struct netvsc_stats __percpu *rx_stats;
673
674 /* Ethtool settings */
675 u8 duplex;
676 u32 speed;
677
678 /* the device is going away */
679 bool start_remove;
680 };
681
682 /* Per netvsc device */
683 struct netvsc_device {
684 u32 nvsp_version;
685
686 atomic_t num_outstanding_sends;
687 wait_queue_head_t wait_drain;
688 bool destroy;
689
690 /* Receive buffer allocated by us but manages by NetVSP */
691 void *recv_buf;
692 u32 recv_buf_size;
693 u32 recv_buf_gpadl_handle;
694 u32 recv_section_cnt;
695 struct nvsp_1_receive_buffer_section *recv_section;
696
697 /* Send buffer allocated by us */
698 void *send_buf;
699 u32 send_buf_size;
700 u32 send_buf_gpadl_handle;
701 u32 send_section_cnt;
702 u32 send_section_size;
703 unsigned long *send_section_map;
704 int map_words;
705
706 /* Used for NetVSP initialization protocol */
707 struct completion channel_init_wait;
708 struct nvsp_message channel_init_pkt;
709
710 struct nvsp_message revoke_packet;
711 /* unsigned char HwMacAddr[HW_MACADDR_LEN]; */
712
713 struct vmbus_channel *chn_table[VRSS_CHANNEL_MAX];
714 u32 send_table[VRSS_SEND_TAB_SIZE];
715 u32 max_chn;
716 u32 num_chn;
717 spinlock_t sc_lock; /* Protects num_sc_offered variable */
718 u32 num_sc_offered;
719 atomic_t queue_sends[VRSS_CHANNEL_MAX];
720
721 /* Holds rndis device info */
722 void *extension;
723
724 int ring_size;
725
726 /* The primary channel callback buffer */
727 unsigned char *cb_buffer;
728 /* The sub channel callback buffer */
729 unsigned char *sub_cb_buf;
730
731 struct multi_send_data msd[VRSS_CHANNEL_MAX];
732 u32 max_pkt; /* max number of pkt in one send, e.g. 8 */
733 u32 pkt_align; /* alignment bytes, e.g. 8 */
734
735 /* 1: allocated, serial number is valid. 0: not allocated */
736 u32 vf_alloc;
737 /* Serial number of the VF to team with */
738 u32 vf_serial;
739 atomic_t open_cnt;
740 /* State to manage the associated VF interface. */
741 bool vf_inject;
742 struct net_device *vf_netdev;
743 atomic_t vf_use_cnt;
744 };
745
746 /* NdisInitialize message */
747 struct rndis_initialize_request {
748 u32 req_id;
749 u32 major_ver;
750 u32 minor_ver;
751 u32 max_xfer_size;
752 };
753
754 /* Response to NdisInitialize */
755 struct rndis_initialize_complete {
756 u32 req_id;
757 u32 status;
758 u32 major_ver;
759 u32 minor_ver;
760 u32 dev_flags;
761 u32 medium;
762 u32 max_pkt_per_msg;
763 u32 max_xfer_size;
764 u32 pkt_alignment_factor;
765 u32 af_list_offset;
766 u32 af_list_size;
767 };
768
769 /* Call manager devices only: Information about an address family */
770 /* supported by the device is appended to the response to NdisInitialize. */
771 struct rndis_co_address_family {
772 u32 address_family;
773 u32 major_ver;
774 u32 minor_ver;
775 };
776
777 /* NdisHalt message */
778 struct rndis_halt_request {
779 u32 req_id;
780 };
781
782 /* NdisQueryRequest message */
783 struct rndis_query_request {
784 u32 req_id;
785 u32 oid;
786 u32 info_buflen;
787 u32 info_buf_offset;
788 u32 dev_vc_handle;
789 };
790
791 /* Response to NdisQueryRequest */
792 struct rndis_query_complete {
793 u32 req_id;
794 u32 status;
795 u32 info_buflen;
796 u32 info_buf_offset;
797 };
798
799 /* NdisSetRequest message */
800 struct rndis_set_request {
801 u32 req_id;
802 u32 oid;
803 u32 info_buflen;
804 u32 info_buf_offset;
805 u32 dev_vc_handle;
806 };
807
808 /* Response to NdisSetRequest */
809 struct rndis_set_complete {
810 u32 req_id;
811 u32 status;
812 };
813
814 /* NdisReset message */
815 struct rndis_reset_request {
816 u32 reserved;
817 };
818
819 /* Response to NdisReset */
820 struct rndis_reset_complete {
821 u32 status;
822 u32 addressing_reset;
823 };
824
825 /* NdisMIndicateStatus message */
826 struct rndis_indicate_status {
827 u32 status;
828 u32 status_buflen;
829 u32 status_buf_offset;
830 };
831
832 /* Diagnostic information passed as the status buffer in */
833 /* struct rndis_indicate_status messages signifying error conditions. */
834 struct rndis_diagnostic_info {
835 u32 diag_status;
836 u32 error_offset;
837 };
838
839 /* NdisKeepAlive message */
840 struct rndis_keepalive_request {
841 u32 req_id;
842 };
843
844 /* Response to NdisKeepAlive */
845 struct rndis_keepalive_complete {
846 u32 req_id;
847 u32 status;
848 };
849
850 /*
851 * Data message. All Offset fields contain byte offsets from the beginning of
852 * struct rndis_packet. All Length fields are in bytes. VcHandle is set
853 * to 0 for connectionless data, otherwise it contains the VC handle.
854 */
855 struct rndis_packet {
856 u32 data_offset;
857 u32 data_len;
858 u32 oob_data_offset;
859 u32 oob_data_len;
860 u32 num_oob_data_elements;
861 u32 per_pkt_info_offset;
862 u32 per_pkt_info_len;
863 u32 vc_handle;
864 u32 reserved;
865 };
866
867 /* Optional Out of Band data associated with a Data message. */
868 struct rndis_oobd {
869 u32 size;
870 u32 type;
871 u32 class_info_offset;
872 };
873
874 /* Packet extension field contents associated with a Data message. */
875 struct rndis_per_packet_info {
876 u32 size;
877 u32 type;
878 u32 ppi_offset;
879 };
880
881 enum ndis_per_pkt_info_type {
882 TCPIP_CHKSUM_PKTINFO,
883 IPSEC_PKTINFO,
884 TCP_LARGESEND_PKTINFO,
885 CLASSIFICATION_HANDLE_PKTINFO,
886 NDIS_RESERVED,
887 SG_LIST_PKTINFO,
888 IEEE_8021Q_INFO,
889 ORIGINAL_PKTINFO,
890 PACKET_CANCEL_ID,
891 NBL_HASH_VALUE = PACKET_CANCEL_ID,
892 ORIGINAL_NET_BUFLIST,
893 CACHED_NET_BUFLIST,
894 SHORT_PKT_PADINFO,
895 MAX_PER_PKT_INFO
896 };
897
898 struct ndis_pkt_8021q_info {
899 union {
900 struct {
901 u32 pri:3; /* User Priority */
902 u32 cfi:1; /* Canonical Format ID */
903 u32 vlanid:12; /* VLAN ID */
904 u32 reserved:16;
905 };
906 u32 value;
907 };
908 };
909
910 struct ndis_oject_header {
911 u8 type;
912 u8 revision;
913 u16 size;
914 };
915
916 #define NDIS_OBJECT_TYPE_DEFAULT 0x80
917 #define NDIS_OFFLOAD_PARAMETERS_REVISION_3 3
918 #define NDIS_OFFLOAD_PARAMETERS_NO_CHANGE 0
919 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_DISABLED 1
920 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_ENABLED 2
921 #define NDIS_OFFLOAD_PARAMETERS_LSOV1_ENABLED 2
922 #define NDIS_OFFLOAD_PARAMETERS_RSC_DISABLED 1
923 #define NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED 2
924 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_DISABLED 1
925 #define NDIS_OFFLOAD_PARAMETERS_TX_ENABLED_RX_DISABLED 2
926 #define NDIS_OFFLOAD_PARAMETERS_RX_ENABLED_TX_DISABLED 3
927 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED 4
928
929 #define NDIS_TCP_LARGE_SEND_OFFLOAD_V2_TYPE 1
930 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV4 0
931 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV6 1
932
933 #define VERSION_4_OFFLOAD_SIZE 22
934 /*
935 * New offload OIDs for NDIS 6
936 */
937 #define OID_TCP_OFFLOAD_CURRENT_CONFIG 0xFC01020B /* query only */
938 #define OID_TCP_OFFLOAD_PARAMETERS 0xFC01020C /* set only */
939 #define OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020D/* query only */
940 #define OID_TCP_CONNECTION_OFFLOAD_CURRENT_CONFIG 0xFC01020E /* query only */
941 #define OID_TCP_CONNECTION_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020F /* query */
942 #define OID_OFFLOAD_ENCAPSULATION 0x0101010A /* set/query */
943
944 struct ndis_offload_params {
945 struct ndis_oject_header header;
946 u8 ip_v4_csum;
947 u8 tcp_ip_v4_csum;
948 u8 udp_ip_v4_csum;
949 u8 tcp_ip_v6_csum;
950 u8 udp_ip_v6_csum;
951 u8 lso_v1;
952 u8 ip_sec_v1;
953 u8 lso_v2_ipv4;
954 u8 lso_v2_ipv6;
955 u8 tcp_connection_ip_v4;
956 u8 tcp_connection_ip_v6;
957 u32 flags;
958 u8 ip_sec_v2;
959 u8 ip_sec_v2_ip_v4;
960 struct {
961 u8 rsc_ip_v4;
962 u8 rsc_ip_v6;
963 };
964 struct {
965 u8 encapsulated_packet_task_offload;
966 u8 encapsulation_types;
967 };
968 };
969
970 struct ndis_tcp_ip_checksum_info {
971 union {
972 struct {
973 u32 is_ipv4:1;
974 u32 is_ipv6:1;
975 u32 tcp_checksum:1;
976 u32 udp_checksum:1;
977 u32 ip_header_checksum:1;
978 u32 reserved:11;
979 u32 tcp_header_offset:10;
980 } transmit;
981 struct {
982 u32 tcp_checksum_failed:1;
983 u32 udp_checksum_failed:1;
984 u32 ip_checksum_failed:1;
985 u32 tcp_checksum_succeeded:1;
986 u32 udp_checksum_succeeded:1;
987 u32 ip_checksum_succeeded:1;
988 u32 loopback:1;
989 u32 tcp_checksum_value_invalid:1;
990 u32 ip_checksum_value_invalid:1;
991 } receive;
992 u32 value;
993 };
994 };
995
996 struct ndis_tcp_lso_info {
997 union {
998 struct {
999 u32 unused:30;
1000 u32 type:1;
1001 u32 reserved2:1;
1002 } transmit;
1003 struct {
1004 u32 mss:20;
1005 u32 tcp_header_offset:10;
1006 u32 type:1;
1007 u32 reserved2:1;
1008 } lso_v1_transmit;
1009 struct {
1010 u32 tcp_payload:30;
1011 u32 type:1;
1012 u32 reserved2:1;
1013 } lso_v1_transmit_complete;
1014 struct {
1015 u32 mss:20;
1016 u32 tcp_header_offset:10;
1017 u32 type:1;
1018 u32 ip_version:1;
1019 } lso_v2_transmit;
1020 struct {
1021 u32 reserved:30;
1022 u32 type:1;
1023 u32 reserved2:1;
1024 } lso_v2_transmit_complete;
1025 u32 value;
1026 };
1027 };
1028
1029 #define NDIS_VLAN_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1030 sizeof(struct ndis_pkt_8021q_info))
1031
1032 #define NDIS_CSUM_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1033 sizeof(struct ndis_tcp_ip_checksum_info))
1034
1035 #define NDIS_LSO_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1036 sizeof(struct ndis_tcp_lso_info))
1037
1038 #define NDIS_HASH_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1039 sizeof(u32))
1040
1041 /* Total size of all PPI data */
1042 #define NDIS_ALL_PPI_SIZE (NDIS_VLAN_PPI_SIZE + NDIS_CSUM_PPI_SIZE + \
1043 NDIS_LSO_PPI_SIZE + NDIS_HASH_PPI_SIZE)
1044
1045 /* Format of Information buffer passed in a SetRequest for the OID */
1046 /* OID_GEN_RNDIS_CONFIG_PARAMETER. */
1047 struct rndis_config_parameter_info {
1048 u32 parameter_name_offset;
1049 u32 parameter_name_length;
1050 u32 parameter_type;
1051 u32 parameter_value_offset;
1052 u32 parameter_value_length;
1053 };
1054
1055 /* Values for ParameterType in struct rndis_config_parameter_info */
1056 #define RNDIS_CONFIG_PARAM_TYPE_INTEGER 0
1057 #define RNDIS_CONFIG_PARAM_TYPE_STRING 2
1058
1059 /* CONDIS Miniport messages for connection oriented devices */
1060 /* that do not implement a call manager. */
1061
1062 /* CoNdisMiniportCreateVc message */
1063 struct rcondis_mp_create_vc {
1064 u32 req_id;
1065 u32 ndis_vc_handle;
1066 };
1067
1068 /* Response to CoNdisMiniportCreateVc */
1069 struct rcondis_mp_create_vc_complete {
1070 u32 req_id;
1071 u32 dev_vc_handle;
1072 u32 status;
1073 };
1074
1075 /* CoNdisMiniportDeleteVc message */
1076 struct rcondis_mp_delete_vc {
1077 u32 req_id;
1078 u32 dev_vc_handle;
1079 };
1080
1081 /* Response to CoNdisMiniportDeleteVc */
1082 struct rcondis_mp_delete_vc_complete {
1083 u32 req_id;
1084 u32 status;
1085 };
1086
1087 /* CoNdisMiniportQueryRequest message */
1088 struct rcondis_mp_query_request {
1089 u32 req_id;
1090 u32 request_type;
1091 u32 oid;
1092 u32 dev_vc_handle;
1093 u32 info_buflen;
1094 u32 info_buf_offset;
1095 };
1096
1097 /* CoNdisMiniportSetRequest message */
1098 struct rcondis_mp_set_request {
1099 u32 req_id;
1100 u32 request_type;
1101 u32 oid;
1102 u32 dev_vc_handle;
1103 u32 info_buflen;
1104 u32 info_buf_offset;
1105 };
1106
1107 /* CoNdisIndicateStatus message */
1108 struct rcondis_indicate_status {
1109 u32 ndis_vc_handle;
1110 u32 status;
1111 u32 status_buflen;
1112 u32 status_buf_offset;
1113 };
1114
1115 /* CONDIS Call/VC parameters */
1116 struct rcondis_specific_parameters {
1117 u32 parameter_type;
1118 u32 parameter_length;
1119 u32 parameter_lffset;
1120 };
1121
1122 struct rcondis_media_parameters {
1123 u32 flags;
1124 u32 reserved1;
1125 u32 reserved2;
1126 struct rcondis_specific_parameters media_specific;
1127 };
1128
1129 struct rndis_flowspec {
1130 u32 token_rate;
1131 u32 token_bucket_size;
1132 u32 peak_bandwidth;
1133 u32 latency;
1134 u32 delay_variation;
1135 u32 service_type;
1136 u32 max_sdu_size;
1137 u32 minimum_policed_size;
1138 };
1139
1140 struct rcondis_call_manager_parameters {
1141 struct rndis_flowspec transmit;
1142 struct rndis_flowspec receive;
1143 struct rcondis_specific_parameters call_mgr_specific;
1144 };
1145
1146 /* CoNdisMiniportActivateVc message */
1147 struct rcondis_mp_activate_vc_request {
1148 u32 req_id;
1149 u32 flags;
1150 u32 dev_vc_handle;
1151 u32 media_params_offset;
1152 u32 media_params_length;
1153 u32 call_mgr_params_offset;
1154 u32 call_mgr_params_length;
1155 };
1156
1157 /* Response to CoNdisMiniportActivateVc */
1158 struct rcondis_mp_activate_vc_complete {
1159 u32 req_id;
1160 u32 status;
1161 };
1162
1163 /* CoNdisMiniportDeactivateVc message */
1164 struct rcondis_mp_deactivate_vc_request {
1165 u32 req_id;
1166 u32 flags;
1167 u32 dev_vc_handle;
1168 };
1169
1170 /* Response to CoNdisMiniportDeactivateVc */
1171 struct rcondis_mp_deactivate_vc_complete {
1172 u32 req_id;
1173 u32 status;
1174 };
1175
1176
1177 /* union with all of the RNDIS messages */
1178 union rndis_message_container {
1179 struct rndis_packet pkt;
1180 struct rndis_initialize_request init_req;
1181 struct rndis_halt_request halt_req;
1182 struct rndis_query_request query_req;
1183 struct rndis_set_request set_req;
1184 struct rndis_reset_request reset_req;
1185 struct rndis_keepalive_request keep_alive_req;
1186 struct rndis_indicate_status indicate_status;
1187 struct rndis_initialize_complete init_complete;
1188 struct rndis_query_complete query_complete;
1189 struct rndis_set_complete set_complete;
1190 struct rndis_reset_complete reset_complete;
1191 struct rndis_keepalive_complete keep_alive_complete;
1192 struct rcondis_mp_create_vc co_miniport_create_vc;
1193 struct rcondis_mp_delete_vc co_miniport_delete_vc;
1194 struct rcondis_indicate_status co_indicate_status;
1195 struct rcondis_mp_activate_vc_request co_miniport_activate_vc;
1196 struct rcondis_mp_deactivate_vc_request co_miniport_deactivate_vc;
1197 struct rcondis_mp_create_vc_complete co_miniport_create_vc_complete;
1198 struct rcondis_mp_delete_vc_complete co_miniport_delete_vc_complete;
1199 struct rcondis_mp_activate_vc_complete co_miniport_activate_vc_complete;
1200 struct rcondis_mp_deactivate_vc_complete
1201 co_miniport_deactivate_vc_complete;
1202 };
1203
1204 /* Remote NDIS message format */
1205 struct rndis_message {
1206 u32 ndis_msg_type;
1207
1208 /* Total length of this message, from the beginning */
1209 /* of the sruct rndis_message, in bytes. */
1210 u32 msg_len;
1211
1212 /* Actual message */
1213 union rndis_message_container msg;
1214 };
1215
1216
1217 /* Handy macros */
1218
1219 /* get the size of an RNDIS message. Pass in the message type, */
1220 /* struct rndis_set_request, struct rndis_packet for example */
1221 #define RNDIS_MESSAGE_SIZE(msg) \
1222 (sizeof(msg) + (sizeof(struct rndis_message) - \
1223 sizeof(union rndis_message_container)))
1224
1225 /* get pointer to info buffer with message pointer */
1226 #define MESSAGE_TO_INFO_BUFFER(msg) \
1227 (((unsigned char *)(msg)) + msg->info_buf_offset)
1228
1229 /* get pointer to status buffer with message pointer */
1230 #define MESSAGE_TO_STATUS_BUFFER(msg) \
1231 (((unsigned char *)(msg)) + msg->status_buf_offset)
1232
1233 /* get pointer to OOBD buffer with message pointer */
1234 #define MESSAGE_TO_OOBD_BUFFER(msg) \
1235 (((unsigned char *)(msg)) + msg->oob_data_offset)
1236
1237 /* get pointer to data buffer with message pointer */
1238 #define MESSAGE_TO_DATA_BUFFER(msg) \
1239 (((unsigned char *)(msg)) + msg->per_pkt_info_offset)
1240
1241 /* get pointer to contained message from NDIS_MESSAGE pointer */
1242 #define RNDIS_MESSAGE_PTR_TO_MESSAGE_PTR(rndis_msg) \
1243 ((void *) &rndis_msg->msg)
1244
1245 /* get pointer to contained message from NDIS_MESSAGE pointer */
1246 #define RNDIS_MESSAGE_RAW_PTR_TO_MESSAGE_PTR(rndis_msg) \
1247 ((void *) rndis_msg)
1248
1249
1250 #define __struct_bcount(x)
1251
1252
1253
1254 #define RNDIS_HEADER_SIZE (sizeof(struct rndis_message) - \
1255 sizeof(union rndis_message_container))
1256
1257 #define RNDIS_AND_PPI_SIZE (sizeof(struct rndis_message) + NDIS_ALL_PPI_SIZE)
1258
1259 #define NDIS_PACKET_TYPE_DIRECTED 0x00000001
1260 #define NDIS_PACKET_TYPE_MULTICAST 0x00000002
1261 #define NDIS_PACKET_TYPE_ALL_MULTICAST 0x00000004
1262 #define NDIS_PACKET_TYPE_BROADCAST 0x00000008
1263 #define NDIS_PACKET_TYPE_SOURCE_ROUTING 0x00000010
1264 #define NDIS_PACKET_TYPE_PROMISCUOUS 0x00000020
1265 #define NDIS_PACKET_TYPE_SMT 0x00000040
1266 #define NDIS_PACKET_TYPE_ALL_LOCAL 0x00000080
1267 #define NDIS_PACKET_TYPE_GROUP 0x00000100
1268 #define NDIS_PACKET_TYPE_ALL_FUNCTIONAL 0x00000200
1269 #define NDIS_PACKET_TYPE_FUNCTIONAL 0x00000400
1270 #define NDIS_PACKET_TYPE_MAC_FRAME 0x00000800
1271
1272 #define INFO_IPV4 2
1273 #define INFO_IPV6 4
1274 #define INFO_TCP 2
1275 #define INFO_UDP 4
1276
1277 #define TRANSPORT_INFO_NOT_IP 0
1278 #define TRANSPORT_INFO_IPV4_TCP ((INFO_IPV4 << 16) | INFO_TCP)
1279 #define TRANSPORT_INFO_IPV4_UDP ((INFO_IPV4 << 16) | INFO_UDP)
1280 #define TRANSPORT_INFO_IPV6_TCP ((INFO_IPV6 << 16) | INFO_TCP)
1281 #define TRANSPORT_INFO_IPV6_UDP ((INFO_IPV6 << 16) | INFO_UDP)
1282
1283 #endif /* _HYPERV_NET_H */
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