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Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[cris-mirror.git] / drivers / net / hyperv / hyperv_net.h
blob8b3bd8ecd1c469ee5c2d05fe47716b13dbed7d5b
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 netvsc_device *net_dev;
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 #define NVSP_INVALID_PROTOCOL_VERSION ((u32)0xFFFFFFFF)
206
207 #define NVSP_PROTOCOL_VERSION_1 2
208 #define NVSP_PROTOCOL_VERSION_2 0x30002
209 #define NVSP_PROTOCOL_VERSION_4 0x40000
210 #define NVSP_PROTOCOL_VERSION_5 0x50000
211
212 enum {
213 NVSP_MSG_TYPE_NONE = 0,
214
215 /* Init Messages */
216 NVSP_MSG_TYPE_INIT = 1,
217 NVSP_MSG_TYPE_INIT_COMPLETE = 2,
218
219 NVSP_VERSION_MSG_START = 100,
220
221 /* Version 1 Messages */
222 NVSP_MSG1_TYPE_SEND_NDIS_VER = NVSP_VERSION_MSG_START,
223
224 NVSP_MSG1_TYPE_SEND_RECV_BUF,
225 NVSP_MSG1_TYPE_SEND_RECV_BUF_COMPLETE,
226 NVSP_MSG1_TYPE_REVOKE_RECV_BUF,
227
228 NVSP_MSG1_TYPE_SEND_SEND_BUF,
229 NVSP_MSG1_TYPE_SEND_SEND_BUF_COMPLETE,
230 NVSP_MSG1_TYPE_REVOKE_SEND_BUF,
231
232 NVSP_MSG1_TYPE_SEND_RNDIS_PKT,
233 NVSP_MSG1_TYPE_SEND_RNDIS_PKT_COMPLETE,
234
235 /* Version 2 messages */
236 NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF,
237 NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF_COMP,
238 NVSP_MSG2_TYPE_REVOKE_CHIMNEY_DELEGATED_BUF,
239
240 NVSP_MSG2_TYPE_RESUME_CHIMNEY_RX_INDICATION,
241
242 NVSP_MSG2_TYPE_TERMINATE_CHIMNEY,
243 NVSP_MSG2_TYPE_TERMINATE_CHIMNEY_COMP,
244
245 NVSP_MSG2_TYPE_INDICATE_CHIMNEY_EVENT,
246
247 NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT,
248 NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT_COMP,
249
250 NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ,
251 NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ_COMP,
252
253 NVSP_MSG2_TYPE_ALLOC_RXBUF,
254 NVSP_MSG2_TYPE_ALLOC_RXBUF_COMP,
255
256 NVSP_MSG2_TYPE_FREE_RXBUF,
257
258 NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT,
259 NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT_COMP,
260
261 NVSP_MSG2_TYPE_SEND_NDIS_CONFIG,
262
263 NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE,
264 NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP,
265
266 NVSP_MSG2_MAX = NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP,
267
268 /* Version 4 messages */
269 NVSP_MSG4_TYPE_SEND_VF_ASSOCIATION,
270 NVSP_MSG4_TYPE_SWITCH_DATA_PATH,
271 NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED,
272
273 NVSP_MSG4_MAX = NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED,
274
275 /* Version 5 messages */
276 NVSP_MSG5_TYPE_OID_QUERY_EX,
277 NVSP_MSG5_TYPE_OID_QUERY_EX_COMP,
278 NVSP_MSG5_TYPE_SUBCHANNEL,
279 NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE,
280
281 NVSP_MSG5_MAX = NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE,
282 };
283
284 enum {
285 NVSP_STAT_NONE = 0,
286 NVSP_STAT_SUCCESS,
287 NVSP_STAT_FAIL,
288 NVSP_STAT_PROTOCOL_TOO_NEW,
289 NVSP_STAT_PROTOCOL_TOO_OLD,
290 NVSP_STAT_INVALID_RNDIS_PKT,
291 NVSP_STAT_BUSY,
292 NVSP_STAT_PROTOCOL_UNSUPPORTED,
293 NVSP_STAT_MAX,
294 };
295
296 struct nvsp_message_header {
297 u32 msg_type;
298 };
299
300 /* Init Messages */
301
302 /*
303 * This message is used by the VSC to initialize the channel after the channels
304 * has been opened. This message should never include anything other then
305 * versioning (i.e. this message will be the same for ever).
306 */
307 struct nvsp_message_init {
308 u32 min_protocol_ver;
309 u32 max_protocol_ver;
310 } __packed;
311
312 /*
313 * This message is used by the VSP to complete the initialization of the
314 * channel. This message should never include anything other then versioning
315 * (i.e. this message will be the same for ever).
316 */
317 struct nvsp_message_init_complete {
318 u32 negotiated_protocol_ver;
319 u32 max_mdl_chain_len;
320 u32 status;
321 } __packed;
322
323 union nvsp_message_init_uber {
324 struct nvsp_message_init init;
325 struct nvsp_message_init_complete init_complete;
326 } __packed;
327
328 /* Version 1 Messages */
329
330 /*
331 * This message is used by the VSC to send the NDIS version to the VSP. The VSP
332 * can use this information when handling OIDs sent by the VSC.
333 */
334 struct nvsp_1_message_send_ndis_version {
335 u32 ndis_major_ver;
336 u32 ndis_minor_ver;
337 } __packed;
338
339 /*
340 * This message is used by the VSC to send a receive buffer to the VSP. The VSP
341 * can then use the receive buffer to send data to the VSC.
342 */
343 struct nvsp_1_message_send_receive_buffer {
344 u32 gpadl_handle;
345 u16 id;
346 } __packed;
347
348 struct nvsp_1_receive_buffer_section {
349 u32 offset;
350 u32 sub_alloc_size;
351 u32 num_sub_allocs;
352 u32 end_offset;
353 } __packed;
354
355 /*
356 * This message is used by the VSP to acknowledge a receive buffer send by the
357 * VSC. This message must be sent by the VSP before the VSP uses the receive
358 * buffer.
359 */
360 struct nvsp_1_message_send_receive_buffer_complete {
361 u32 status;
362 u32 num_sections;
363
364 /*
365 * The receive buffer is split into two parts, a large suballocation
366 * section and a small suballocation section. These sections are then
367 * suballocated by a certain size.
368 */
369
370 /*
371 * For example, the following break up of the receive buffer has 6
372 * large suballocations and 10 small suballocations.
373 */
374
375 /*
376 * | Large Section | | Small Section |
377 * ------------------------------------------------------------
378 * | | | | | | | | | | | | | | | | | |
379 * | |
380 * LargeOffset SmallOffset
381 */
382
383 struct nvsp_1_receive_buffer_section sections[1];
384 } __packed;
385
386 /*
387 * This message is sent by the VSC to revoke the receive buffer. After the VSP
388 * completes this transaction, the vsp should never use the receive buffer
389 * again.
390 */
391 struct nvsp_1_message_revoke_receive_buffer {
392 u16 id;
393 };
394
395 /*
396 * This message is used by the VSC to send a send buffer to the VSP. The VSC
397 * can then use the send buffer to send data to the VSP.
398 */
399 struct nvsp_1_message_send_send_buffer {
400 u32 gpadl_handle;
401 u16 id;
402 } __packed;
403
404 /*
405 * This message is used by the VSP to acknowledge a send buffer sent by the
406 * VSC. This message must be sent by the VSP before the VSP uses the sent
407 * buffer.
408 */
409 struct nvsp_1_message_send_send_buffer_complete {
410 u32 status;
411
412 /*
413 * The VSC gets to choose the size of the send buffer and the VSP gets
414 * to choose the sections size of the buffer. This was done to enable
415 * dynamic reconfigurations when the cost of GPA-direct buffers
416 * decreases.
417 */
418 u32 section_size;
419 } __packed;
420
421 /*
422 * This message is sent by the VSC to revoke the send buffer. After the VSP
423 * completes this transaction, the vsp should never use the send buffer again.
424 */
425 struct nvsp_1_message_revoke_send_buffer {
426 u16 id;
427 };
428
429 /*
430 * This message is used by both the VSP and the VSC to send a RNDIS message to
431 * the opposite channel endpoint.
432 */
433 struct nvsp_1_message_send_rndis_packet {
434 /*
435 * This field is specified by RNIDS. They assume there's two different
436 * channels of communication. However, the Network VSP only has one.
437 * Therefore, the channel travels with the RNDIS packet.
438 */
439 u32 channel_type;
440
441 /*
442 * This field is used to send part or all of the data through a send
443 * buffer. This values specifies an index into the send buffer. If the
444 * index is 0xFFFFFFFF, then the send buffer is not being used and all
445 * of the data was sent through other VMBus mechanisms.
446 */
447 u32 send_buf_section_index;
448 u32 send_buf_section_size;
449 } __packed;
450
451 /*
452 * This message is used by both the VSP and the VSC to complete a RNDIS message
453 * to the opposite channel endpoint. At this point, the initiator of this
454 * message cannot use any resources associated with the original RNDIS packet.
455 */
456 struct nvsp_1_message_send_rndis_packet_complete {
457 u32 status;
458 };
459
460 union nvsp_1_message_uber {
461 struct nvsp_1_message_send_ndis_version send_ndis_ver;
462
463 struct nvsp_1_message_send_receive_buffer send_recv_buf;
464 struct nvsp_1_message_send_receive_buffer_complete
465 send_recv_buf_complete;
466 struct nvsp_1_message_revoke_receive_buffer revoke_recv_buf;
467
468 struct nvsp_1_message_send_send_buffer send_send_buf;
469 struct nvsp_1_message_send_send_buffer_complete send_send_buf_complete;
470 struct nvsp_1_message_revoke_send_buffer revoke_send_buf;
471
472 struct nvsp_1_message_send_rndis_packet send_rndis_pkt;
473 struct nvsp_1_message_send_rndis_packet_complete
474 send_rndis_pkt_complete;
475 } __packed;
476
477
478 /*
479 * Network VSP protocol version 2 messages:
480 */
481 struct nvsp_2_vsc_capability {
482 union {
483 u64 data;
484 struct {
485 u64 vmq:1;
486 u64 chimney:1;
487 u64 sriov:1;
488 u64 ieee8021q:1;
489 u64 correlation_id:1;
490 };
491 };
492 } __packed;
493
494 struct nvsp_2_send_ndis_config {
495 u32 mtu;
496 u32 reserved;
497 struct nvsp_2_vsc_capability capability;
498 } __packed;
499
500 /* Allocate receive buffer */
501 struct nvsp_2_alloc_rxbuf {
502 /* Allocation ID to match the allocation request and response */
503 u32 alloc_id;
504
505 /* Length of the VM shared memory receive buffer that needs to
506 * be allocated
507 */
508 u32 len;
509 } __packed;
510
511 /* Allocate receive buffer complete */
512 struct nvsp_2_alloc_rxbuf_comp {
513 /* The NDIS_STATUS code for buffer allocation */
514 u32 status;
515
516 u32 alloc_id;
517
518 /* GPADL handle for the allocated receive buffer */
519 u32 gpadl_handle;
520
521 /* Receive buffer ID */
522 u64 recv_buf_id;
523 } __packed;
524
525 struct nvsp_2_free_rxbuf {
526 u64 recv_buf_id;
527 } __packed;
528
529 union nvsp_2_message_uber {
530 struct nvsp_2_send_ndis_config send_ndis_config;
531 struct nvsp_2_alloc_rxbuf alloc_rxbuf;
532 struct nvsp_2_alloc_rxbuf_comp alloc_rxbuf_comp;
533 struct nvsp_2_free_rxbuf free_rxbuf;
534 } __packed;
535
536 struct nvsp_4_send_vf_association {
537 /* 1: allocated, serial number is valid. 0: not allocated */
538 u32 allocated;
539
540 /* Serial number of the VF to team with */
541 u32 serial;
542 } __packed;
543
544 enum nvsp_vm_datapath {
545 NVSP_DATAPATH_SYNTHETIC = 0,
546 NVSP_DATAPATH_VF,
547 NVSP_DATAPATH_MAX
548 };
549
550 struct nvsp_4_sw_datapath {
551 u32 active_datapath; /* active data path in VM */
552 } __packed;
553
554 union nvsp_4_message_uber {
555 struct nvsp_4_send_vf_association vf_assoc;
556 struct nvsp_4_sw_datapath active_dp;
557 } __packed;
558
559 enum nvsp_subchannel_operation {
560 NVSP_SUBCHANNEL_NONE = 0,
561 NVSP_SUBCHANNEL_ALLOCATE,
562 NVSP_SUBCHANNEL_MAX
563 };
564
565 struct nvsp_5_subchannel_request {
566 u32 op;
567 u32 num_subchannels;
568 } __packed;
569
570 struct nvsp_5_subchannel_complete {
571 u32 status;
572 u32 num_subchannels; /* Actual number of subchannels allocated */
573 } __packed;
574
575 struct nvsp_5_send_indirect_table {
576 /* The number of entries in the send indirection table */
577 u32 count;
578
579 /* The offset of the send indireciton table from top of this struct.
580 * The send indirection table tells which channel to put the send
581 * traffic on. Each entry is a channel number.
582 */
583 u32 offset;
584 } __packed;
585
586 union nvsp_5_message_uber {
587 struct nvsp_5_subchannel_request subchn_req;
588 struct nvsp_5_subchannel_complete subchn_comp;
589 struct nvsp_5_send_indirect_table send_table;
590 } __packed;
591
592 union nvsp_all_messages {
593 union nvsp_message_init_uber init_msg;
594 union nvsp_1_message_uber v1_msg;
595 union nvsp_2_message_uber v2_msg;
596 union nvsp_4_message_uber v4_msg;
597 union nvsp_5_message_uber v5_msg;
598 } __packed;
599
600 /* ALL Messages */
601 struct nvsp_message {
602 struct nvsp_message_header hdr;
603 union nvsp_all_messages msg;
604 } __packed;
605
606
607 #define NETVSC_MTU 65536
608 #define NETVSC_MTU_MIN 68
609
610 #define NETVSC_RECEIVE_BUFFER_SIZE (1024*1024*16) /* 16MB */
611 #define NETVSC_RECEIVE_BUFFER_SIZE_LEGACY (1024*1024*15) /* 15MB */
612 #define NETVSC_SEND_BUFFER_SIZE (1024 * 1024 * 15) /* 15MB */
613 #define NETVSC_INVALID_INDEX -1
614
615
616 #define NETVSC_RECEIVE_BUFFER_ID 0xcafe
617 #define NETVSC_SEND_BUFFER_ID 0
618
619 #define NETVSC_PACKET_SIZE 4096
620
621 #define VRSS_SEND_TAB_SIZE 16
622 #define VRSS_CHANNEL_MAX 64
623
624 #define RNDIS_MAX_PKT_DEFAULT 8
625 #define RNDIS_PKT_ALIGN_DEFAULT 8
626
627 struct multi_send_data {
628 struct sk_buff *skb; /* skb containing the pkt */
629 struct hv_netvsc_packet *pkt; /* netvsc pkt pending */
630 u32 count; /* counter of batched packets */
631 };
632
633 struct netvsc_stats {
634 u64 packets;
635 u64 bytes;
636 struct u64_stats_sync syncp;
637 };
638
639 struct netvsc_reconfig {
640 struct list_head list;
641 u32 event;
642 };
643
644 /* The context of the netvsc device */
645 struct net_device_context {
646 /* point back to our device context */
647 struct hv_device *device_ctx;
648 /* reconfigure work */
649 struct delayed_work dwork;
650 /* last reconfig time */
651 unsigned long last_reconfig;
652 /* reconfig events */
653 struct list_head reconfig_events;
654 /* list protection */
655 spinlock_t lock;
656
657 struct work_struct work;
658 u32 msg_enable; /* debug level */
659
660 struct netvsc_stats __percpu *tx_stats;
661 struct netvsc_stats __percpu *rx_stats;
662
663 /* Ethtool settings */
664 u8 duplex;
665 u32 speed;
666 };
667
668 /* Per netvsc device */
669 struct netvsc_device {
670 struct hv_device *dev;
671
672 u32 nvsp_version;
673
674 atomic_t num_outstanding_sends;
675 wait_queue_head_t wait_drain;
676 bool start_remove;
677 bool destroy;
678
679 /* Receive buffer allocated by us but manages by NetVSP */
680 void *recv_buf;
681 u32 recv_buf_size;
682 u32 recv_buf_gpadl_handle;
683 u32 recv_section_cnt;
684 struct nvsp_1_receive_buffer_section *recv_section;
685
686 /* Send buffer allocated by us */
687 void *send_buf;
688 u32 send_buf_size;
689 u32 send_buf_gpadl_handle;
690 u32 send_section_cnt;
691 u32 send_section_size;
692 unsigned long *send_section_map;
693 int map_words;
694
695 /* Used for NetVSP initialization protocol */
696 struct completion channel_init_wait;
697 struct nvsp_message channel_init_pkt;
698
699 struct nvsp_message revoke_packet;
700 /* unsigned char HwMacAddr[HW_MACADDR_LEN]; */
701
702 struct net_device *ndev;
703
704 struct vmbus_channel *chn_table[VRSS_CHANNEL_MAX];
705 u32 send_table[VRSS_SEND_TAB_SIZE];
706 u32 max_chn;
707 u32 num_chn;
708 spinlock_t sc_lock; /* Protects num_sc_offered variable */
709 u32 num_sc_offered;
710 atomic_t queue_sends[VRSS_CHANNEL_MAX];
711
712 /* Holds rndis device info */
713 void *extension;
714
715 int ring_size;
716
717 /* The primary channel callback buffer */
718 unsigned char *cb_buffer;
719 /* The sub channel callback buffer */
720 unsigned char *sub_cb_buf;
721
722 struct multi_send_data msd[VRSS_CHANNEL_MAX];
723 u32 max_pkt; /* max number of pkt in one send, e.g. 8 */
724 u32 pkt_align; /* alignment bytes, e.g. 8 */
725
726 /* The net device context */
727 struct net_device_context *nd_ctx;
728
729 /* 1: allocated, serial number is valid. 0: not allocated */
730 u32 vf_alloc;
731 /* Serial number of the VF to team with */
732 u32 vf_serial;
733 };
734
735 /* NdisInitialize message */
736 struct rndis_initialize_request {
737 u32 req_id;
738 u32 major_ver;
739 u32 minor_ver;
740 u32 max_xfer_size;
741 };
742
743 /* Response to NdisInitialize */
744 struct rndis_initialize_complete {
745 u32 req_id;
746 u32 status;
747 u32 major_ver;
748 u32 minor_ver;
749 u32 dev_flags;
750 u32 medium;
751 u32 max_pkt_per_msg;
752 u32 max_xfer_size;
753 u32 pkt_alignment_factor;
754 u32 af_list_offset;
755 u32 af_list_size;
756 };
757
758 /* Call manager devices only: Information about an address family */
759 /* supported by the device is appended to the response to NdisInitialize. */
760 struct rndis_co_address_family {
761 u32 address_family;
762 u32 major_ver;
763 u32 minor_ver;
764 };
765
766 /* NdisHalt message */
767 struct rndis_halt_request {
768 u32 req_id;
769 };
770
771 /* NdisQueryRequest message */
772 struct rndis_query_request {
773 u32 req_id;
774 u32 oid;
775 u32 info_buflen;
776 u32 info_buf_offset;
777 u32 dev_vc_handle;
778 };
779
780 /* Response to NdisQueryRequest */
781 struct rndis_query_complete {
782 u32 req_id;
783 u32 status;
784 u32 info_buflen;
785 u32 info_buf_offset;
786 };
787
788 /* NdisSetRequest message */
789 struct rndis_set_request {
790 u32 req_id;
791 u32 oid;
792 u32 info_buflen;
793 u32 info_buf_offset;
794 u32 dev_vc_handle;
795 };
796
797 /* Response to NdisSetRequest */
798 struct rndis_set_complete {
799 u32 req_id;
800 u32 status;
801 };
802
803 /* NdisReset message */
804 struct rndis_reset_request {
805 u32 reserved;
806 };
807
808 /* Response to NdisReset */
809 struct rndis_reset_complete {
810 u32 status;
811 u32 addressing_reset;
812 };
813
814 /* NdisMIndicateStatus message */
815 struct rndis_indicate_status {
816 u32 status;
817 u32 status_buflen;
818 u32 status_buf_offset;
819 };
820
821 /* Diagnostic information passed as the status buffer in */
822 /* struct rndis_indicate_status messages signifying error conditions. */
823 struct rndis_diagnostic_info {
824 u32 diag_status;
825 u32 error_offset;
826 };
827
828 /* NdisKeepAlive message */
829 struct rndis_keepalive_request {
830 u32 req_id;
831 };
832
833 /* Response to NdisKeepAlive */
834 struct rndis_keepalive_complete {
835 u32 req_id;
836 u32 status;
837 };
838
839 /*
840 * Data message. All Offset fields contain byte offsets from the beginning of
841 * struct rndis_packet. All Length fields are in bytes. VcHandle is set
842 * to 0 for connectionless data, otherwise it contains the VC handle.
843 */
844 struct rndis_packet {
845 u32 data_offset;
846 u32 data_len;
847 u32 oob_data_offset;
848 u32 oob_data_len;
849 u32 num_oob_data_elements;
850 u32 per_pkt_info_offset;
851 u32 per_pkt_info_len;
852 u32 vc_handle;
853 u32 reserved;
854 };
855
856 /* Optional Out of Band data associated with a Data message. */
857 struct rndis_oobd {
858 u32 size;
859 u32 type;
860 u32 class_info_offset;
861 };
862
863 /* Packet extension field contents associated with a Data message. */
864 struct rndis_per_packet_info {
865 u32 size;
866 u32 type;
867 u32 ppi_offset;
868 };
869
870 enum ndis_per_pkt_info_type {
871 TCPIP_CHKSUM_PKTINFO,
872 IPSEC_PKTINFO,
873 TCP_LARGESEND_PKTINFO,
874 CLASSIFICATION_HANDLE_PKTINFO,
875 NDIS_RESERVED,
876 SG_LIST_PKTINFO,
877 IEEE_8021Q_INFO,
878 ORIGINAL_PKTINFO,
879 PACKET_CANCEL_ID,
880 NBL_HASH_VALUE = PACKET_CANCEL_ID,
881 ORIGINAL_NET_BUFLIST,
882 CACHED_NET_BUFLIST,
883 SHORT_PKT_PADINFO,
884 MAX_PER_PKT_INFO
885 };
886
887 struct ndis_pkt_8021q_info {
888 union {
889 struct {
890 u32 pri:3; /* User Priority */
891 u32 cfi:1; /* Canonical Format ID */
892 u32 vlanid:12; /* VLAN ID */
893 u32 reserved:16;
894 };
895 u32 value;
896 };
897 };
898
899 struct ndis_oject_header {
900 u8 type;
901 u8 revision;
902 u16 size;
903 };
904
905 #define NDIS_OBJECT_TYPE_DEFAULT 0x80
906 #define NDIS_OFFLOAD_PARAMETERS_REVISION_3 3
907 #define NDIS_OFFLOAD_PARAMETERS_NO_CHANGE 0
908 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_DISABLED 1
909 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_ENABLED 2
910 #define NDIS_OFFLOAD_PARAMETERS_LSOV1_ENABLED 2
911 #define NDIS_OFFLOAD_PARAMETERS_RSC_DISABLED 1
912 #define NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED 2
913 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_DISABLED 1
914 #define NDIS_OFFLOAD_PARAMETERS_TX_ENABLED_RX_DISABLED 2
915 #define NDIS_OFFLOAD_PARAMETERS_RX_ENABLED_TX_DISABLED 3
916 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED 4
917
918 #define NDIS_TCP_LARGE_SEND_OFFLOAD_V2_TYPE 1
919 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV4 0
920 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV6 1
921
922 #define VERSION_4_OFFLOAD_SIZE 22
923 /*
924 * New offload OIDs for NDIS 6
925 */
926 #define OID_TCP_OFFLOAD_CURRENT_CONFIG 0xFC01020B /* query only */
927 #define OID_TCP_OFFLOAD_PARAMETERS 0xFC01020C /* set only */
928 #define OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020D/* query only */
929 #define OID_TCP_CONNECTION_OFFLOAD_CURRENT_CONFIG 0xFC01020E /* query only */
930 #define OID_TCP_CONNECTION_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020F /* query */
931 #define OID_OFFLOAD_ENCAPSULATION 0x0101010A /* set/query */
932
933 struct ndis_offload_params {
934 struct ndis_oject_header header;
935 u8 ip_v4_csum;
936 u8 tcp_ip_v4_csum;
937 u8 udp_ip_v4_csum;
938 u8 tcp_ip_v6_csum;
939 u8 udp_ip_v6_csum;
940 u8 lso_v1;
941 u8 ip_sec_v1;
942 u8 lso_v2_ipv4;
943 u8 lso_v2_ipv6;
944 u8 tcp_connection_ip_v4;
945 u8 tcp_connection_ip_v6;
946 u32 flags;
947 u8 ip_sec_v2;
948 u8 ip_sec_v2_ip_v4;
949 struct {
950 u8 rsc_ip_v4;
951 u8 rsc_ip_v6;
952 };
953 struct {
954 u8 encapsulated_packet_task_offload;
955 u8 encapsulation_types;
956 };
957 };
958
959 struct ndis_tcp_ip_checksum_info {
960 union {
961 struct {
962 u32 is_ipv4:1;
963 u32 is_ipv6:1;
964 u32 tcp_checksum:1;
965 u32 udp_checksum:1;
966 u32 ip_header_checksum:1;
967 u32 reserved:11;
968 u32 tcp_header_offset:10;
969 } transmit;
970 struct {
971 u32 tcp_checksum_failed:1;
972 u32 udp_checksum_failed:1;
973 u32 ip_checksum_failed:1;
974 u32 tcp_checksum_succeeded:1;
975 u32 udp_checksum_succeeded:1;
976 u32 ip_checksum_succeeded:1;
977 u32 loopback:1;
978 u32 tcp_checksum_value_invalid:1;
979 u32 ip_checksum_value_invalid:1;
980 } receive;
981 u32 value;
982 };
983 };
984
985 struct ndis_tcp_lso_info {
986 union {
987 struct {
988 u32 unused:30;
989 u32 type:1;
990 u32 reserved2:1;
991 } transmit;
992 struct {
993 u32 mss:20;
994 u32 tcp_header_offset:10;
995 u32 type:1;
996 u32 reserved2:1;
997 } lso_v1_transmit;
998 struct {
999 u32 tcp_payload:30;
1000 u32 type:1;
1001 u32 reserved2:1;
1002 } lso_v1_transmit_complete;
1003 struct {
1004 u32 mss:20;
1005 u32 tcp_header_offset:10;
1006 u32 type:1;
1007 u32 ip_version:1;
1008 } lso_v2_transmit;
1009 struct {
1010 u32 reserved:30;
1011 u32 type:1;
1012 u32 reserved2:1;
1013 } lso_v2_transmit_complete;
1014 u32 value;
1015 };
1016 };
1017
1018 #define NDIS_VLAN_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1019 sizeof(struct ndis_pkt_8021q_info))
1020
1021 #define NDIS_CSUM_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1022 sizeof(struct ndis_tcp_ip_checksum_info))
1023
1024 #define NDIS_LSO_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1025 sizeof(struct ndis_tcp_lso_info))
1026
1027 #define NDIS_HASH_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1028 sizeof(u32))
1029
1030 /* Total size of all PPI data */
1031 #define NDIS_ALL_PPI_SIZE (NDIS_VLAN_PPI_SIZE + NDIS_CSUM_PPI_SIZE + \
1032 NDIS_LSO_PPI_SIZE + NDIS_HASH_PPI_SIZE)
1033
1034 /* Format of Information buffer passed in a SetRequest for the OID */
1035 /* OID_GEN_RNDIS_CONFIG_PARAMETER. */
1036 struct rndis_config_parameter_info {
1037 u32 parameter_name_offset;
1038 u32 parameter_name_length;
1039 u32 parameter_type;
1040 u32 parameter_value_offset;
1041 u32 parameter_value_length;
1042 };
1043
1044 /* Values for ParameterType in struct rndis_config_parameter_info */
1045 #define RNDIS_CONFIG_PARAM_TYPE_INTEGER 0
1046 #define RNDIS_CONFIG_PARAM_TYPE_STRING 2
1047
1048 /* CONDIS Miniport messages for connection oriented devices */
1049 /* that do not implement a call manager. */
1050
1051 /* CoNdisMiniportCreateVc message */
1052 struct rcondis_mp_create_vc {
1053 u32 req_id;
1054 u32 ndis_vc_handle;
1055 };
1056
1057 /* Response to CoNdisMiniportCreateVc */
1058 struct rcondis_mp_create_vc_complete {
1059 u32 req_id;
1060 u32 dev_vc_handle;
1061 u32 status;
1062 };
1063
1064 /* CoNdisMiniportDeleteVc message */
1065 struct rcondis_mp_delete_vc {
1066 u32 req_id;
1067 u32 dev_vc_handle;
1068 };
1069
1070 /* Response to CoNdisMiniportDeleteVc */
1071 struct rcondis_mp_delete_vc_complete {
1072 u32 req_id;
1073 u32 status;
1074 };
1075
1076 /* CoNdisMiniportQueryRequest message */
1077 struct rcondis_mp_query_request {
1078 u32 req_id;
1079 u32 request_type;
1080 u32 oid;
1081 u32 dev_vc_handle;
1082 u32 info_buflen;
1083 u32 info_buf_offset;
1084 };
1085
1086 /* CoNdisMiniportSetRequest message */
1087 struct rcondis_mp_set_request {
1088 u32 req_id;
1089 u32 request_type;
1090 u32 oid;
1091 u32 dev_vc_handle;
1092 u32 info_buflen;
1093 u32 info_buf_offset;
1094 };
1095
1096 /* CoNdisIndicateStatus message */
1097 struct rcondis_indicate_status {
1098 u32 ndis_vc_handle;
1099 u32 status;
1100 u32 status_buflen;
1101 u32 status_buf_offset;
1102 };
1103
1104 /* CONDIS Call/VC parameters */
1105 struct rcondis_specific_parameters {
1106 u32 parameter_type;
1107 u32 parameter_length;
1108 u32 parameter_lffset;
1109 };
1110
1111 struct rcondis_media_parameters {
1112 u32 flags;
1113 u32 reserved1;
1114 u32 reserved2;
1115 struct rcondis_specific_parameters media_specific;
1116 };
1117
1118 struct rndis_flowspec {
1119 u32 token_rate;
1120 u32 token_bucket_size;
1121 u32 peak_bandwidth;
1122 u32 latency;
1123 u32 delay_variation;
1124 u32 service_type;
1125 u32 max_sdu_size;
1126 u32 minimum_policed_size;
1127 };
1128
1129 struct rcondis_call_manager_parameters {
1130 struct rndis_flowspec transmit;
1131 struct rndis_flowspec receive;
1132 struct rcondis_specific_parameters call_mgr_specific;
1133 };
1134
1135 /* CoNdisMiniportActivateVc message */
1136 struct rcondis_mp_activate_vc_request {
1137 u32 req_id;
1138 u32 flags;
1139 u32 dev_vc_handle;
1140 u32 media_params_offset;
1141 u32 media_params_length;
1142 u32 call_mgr_params_offset;
1143 u32 call_mgr_params_length;
1144 };
1145
1146 /* Response to CoNdisMiniportActivateVc */
1147 struct rcondis_mp_activate_vc_complete {
1148 u32 req_id;
1149 u32 status;
1150 };
1151
1152 /* CoNdisMiniportDeactivateVc message */
1153 struct rcondis_mp_deactivate_vc_request {
1154 u32 req_id;
1155 u32 flags;
1156 u32 dev_vc_handle;
1157 };
1158
1159 /* Response to CoNdisMiniportDeactivateVc */
1160 struct rcondis_mp_deactivate_vc_complete {
1161 u32 req_id;
1162 u32 status;
1163 };
1164
1165
1166 /* union with all of the RNDIS messages */
1167 union rndis_message_container {
1168 struct rndis_packet pkt;
1169 struct rndis_initialize_request init_req;
1170 struct rndis_halt_request halt_req;
1171 struct rndis_query_request query_req;
1172 struct rndis_set_request set_req;
1173 struct rndis_reset_request reset_req;
1174 struct rndis_keepalive_request keep_alive_req;
1175 struct rndis_indicate_status indicate_status;
1176 struct rndis_initialize_complete init_complete;
1177 struct rndis_query_complete query_complete;
1178 struct rndis_set_complete set_complete;
1179 struct rndis_reset_complete reset_complete;
1180 struct rndis_keepalive_complete keep_alive_complete;
1181 struct rcondis_mp_create_vc co_miniport_create_vc;
1182 struct rcondis_mp_delete_vc co_miniport_delete_vc;
1183 struct rcondis_indicate_status co_indicate_status;
1184 struct rcondis_mp_activate_vc_request co_miniport_activate_vc;
1185 struct rcondis_mp_deactivate_vc_request co_miniport_deactivate_vc;
1186 struct rcondis_mp_create_vc_complete co_miniport_create_vc_complete;
1187 struct rcondis_mp_delete_vc_complete co_miniport_delete_vc_complete;
1188 struct rcondis_mp_activate_vc_complete co_miniport_activate_vc_complete;
1189 struct rcondis_mp_deactivate_vc_complete
1190 co_miniport_deactivate_vc_complete;
1191 };
1192
1193 /* Remote NDIS message format */
1194 struct rndis_message {
1195 u32 ndis_msg_type;
1196
1197 /* Total length of this message, from the beginning */
1198 /* of the sruct rndis_message, in bytes. */
1199 u32 msg_len;
1200
1201 /* Actual message */
1202 union rndis_message_container msg;
1203 };
1204
1205
1206 /* Handy macros */
1207
1208 /* get the size of an RNDIS message. Pass in the message type, */
1209 /* struct rndis_set_request, struct rndis_packet for example */
1210 #define RNDIS_MESSAGE_SIZE(msg) \
1211 (sizeof(msg) + (sizeof(struct rndis_message) - \
1212 sizeof(union rndis_message_container)))
1213
1214 /* get pointer to info buffer with message pointer */
1215 #define MESSAGE_TO_INFO_BUFFER(msg) \
1216 (((unsigned char *)(msg)) + msg->info_buf_offset)
1217
1218 /* get pointer to status buffer with message pointer */
1219 #define MESSAGE_TO_STATUS_BUFFER(msg) \
1220 (((unsigned char *)(msg)) + msg->status_buf_offset)
1221
1222 /* get pointer to OOBD buffer with message pointer */
1223 #define MESSAGE_TO_OOBD_BUFFER(msg) \
1224 (((unsigned char *)(msg)) + msg->oob_data_offset)
1225
1226 /* get pointer to data buffer with message pointer */
1227 #define MESSAGE_TO_DATA_BUFFER(msg) \
1228 (((unsigned char *)(msg)) + msg->per_pkt_info_offset)
1229
1230 /* get pointer to contained message from NDIS_MESSAGE pointer */
1231 #define RNDIS_MESSAGE_PTR_TO_MESSAGE_PTR(rndis_msg) \
1232 ((void *) &rndis_msg->msg)
1233
1234 /* get pointer to contained message from NDIS_MESSAGE pointer */
1235 #define RNDIS_MESSAGE_RAW_PTR_TO_MESSAGE_PTR(rndis_msg) \
1236 ((void *) rndis_msg)
1237
1238
1239 #define __struct_bcount(x)
1240
1241
1242
1243 #define RNDIS_HEADER_SIZE (sizeof(struct rndis_message) - \
1244 sizeof(union rndis_message_container))
1245
1246 #define RNDIS_AND_PPI_SIZE (sizeof(struct rndis_message) + NDIS_ALL_PPI_SIZE)
1247
1248 #define NDIS_PACKET_TYPE_DIRECTED 0x00000001
1249 #define NDIS_PACKET_TYPE_MULTICAST 0x00000002
1250 #define NDIS_PACKET_TYPE_ALL_MULTICAST 0x00000004
1251 #define NDIS_PACKET_TYPE_BROADCAST 0x00000008
1252 #define NDIS_PACKET_TYPE_SOURCE_ROUTING 0x00000010
1253 #define NDIS_PACKET_TYPE_PROMISCUOUS 0x00000020
1254 #define NDIS_PACKET_TYPE_SMT 0x00000040
1255 #define NDIS_PACKET_TYPE_ALL_LOCAL 0x00000080
1256 #define NDIS_PACKET_TYPE_GROUP 0x00000100
1257 #define NDIS_PACKET_TYPE_ALL_FUNCTIONAL 0x00000200
1258 #define NDIS_PACKET_TYPE_FUNCTIONAL 0x00000400
1259 #define NDIS_PACKET_TYPE_MAC_FRAME 0x00000800
1260
1261 #define INFO_IPV4 2
1262 #define INFO_IPV6 4
1263 #define INFO_TCP 2
1264 #define INFO_UDP 4
1265
1266 #define TRANSPORT_INFO_NOT_IP 0
1267 #define TRANSPORT_INFO_IPV4_TCP ((INFO_IPV4 << 16) | INFO_TCP)
1268 #define TRANSPORT_INFO_IPV4_UDP ((INFO_IPV4 << 16) | INFO_UDP)
1269 #define TRANSPORT_INFO_IPV6_TCP ((INFO_IPV6 << 16) | INFO_TCP)
1270 #define TRANSPORT_INFO_IPV6_UDP ((INFO_IPV6 << 16) | INFO_UDP)
1271
1272 #endif /* _HYPERV_NET_H */
CRIS linux kernel tree