mmc: sdhci-acpi: Set MMC_CAP_CMD_DURING_TFR for Intel eMMC controllers
[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 struct netvsc_device;
177 int netvsc_device_add(struct hv_device *device, void *additional_info);
178 int netvsc_device_remove(struct hv_device *device);
179 int netvsc_send(struct hv_device *device,
180 struct hv_netvsc_packet *packet,
181 struct rndis_message *rndis_msg,
182 struct hv_page_buffer **page_buffer,
183 struct sk_buff *skb);
184 void netvsc_linkstatus_callback(struct hv_device *device_obj,
185 struct rndis_message *resp);
186 int netvsc_recv_callback(struct hv_device *device_obj,
187 struct hv_netvsc_packet *packet,
188 void **data,
189 struct ndis_tcp_ip_checksum_info *csum_info,
190 struct vmbus_channel *channel,
191 u16 vlan_tci);
192 void netvsc_channel_cb(void *context);
193 int rndis_filter_open(struct netvsc_device *nvdev);
194 int rndis_filter_close(struct netvsc_device *nvdev);
195 int rndis_filter_device_add(struct hv_device *dev,
196 void *additional_info);
197 void rndis_filter_device_remove(struct hv_device *dev);
198 int rndis_filter_receive(struct hv_device *dev,
199 struct hv_netvsc_packet *pkt,
200 void **data,
201 struct vmbus_channel *channel);
202
203 int rndis_filter_set_packet_filter(struct rndis_device *dev, u32 new_filter);
204 int rndis_filter_set_device_mac(struct net_device *ndev, char *mac);
205
206 void netvsc_switch_datapath(struct net_device *nv_dev, bool vf);
207
208 #define NVSP_INVALID_PROTOCOL_VERSION ((u32)0xFFFFFFFF)
209
210 #define NVSP_PROTOCOL_VERSION_1 2
211 #define NVSP_PROTOCOL_VERSION_2 0x30002
212 #define NVSP_PROTOCOL_VERSION_4 0x40000
213 #define NVSP_PROTOCOL_VERSION_5 0x50000
214
215 enum {
216 NVSP_MSG_TYPE_NONE = 0,
217
218 /* Init Messages */
219 NVSP_MSG_TYPE_INIT = 1,
220 NVSP_MSG_TYPE_INIT_COMPLETE = 2,
221
222 NVSP_VERSION_MSG_START = 100,
223
224 /* Version 1 Messages */
225 NVSP_MSG1_TYPE_SEND_NDIS_VER = NVSP_VERSION_MSG_START,
226
227 NVSP_MSG1_TYPE_SEND_RECV_BUF,
228 NVSP_MSG1_TYPE_SEND_RECV_BUF_COMPLETE,
229 NVSP_MSG1_TYPE_REVOKE_RECV_BUF,
230
231 NVSP_MSG1_TYPE_SEND_SEND_BUF,
232 NVSP_MSG1_TYPE_SEND_SEND_BUF_COMPLETE,
233 NVSP_MSG1_TYPE_REVOKE_SEND_BUF,
234
235 NVSP_MSG1_TYPE_SEND_RNDIS_PKT,
236 NVSP_MSG1_TYPE_SEND_RNDIS_PKT_COMPLETE,
237
238 /* Version 2 messages */
239 NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF,
240 NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF_COMP,
241 NVSP_MSG2_TYPE_REVOKE_CHIMNEY_DELEGATED_BUF,
242
243 NVSP_MSG2_TYPE_RESUME_CHIMNEY_RX_INDICATION,
244
245 NVSP_MSG2_TYPE_TERMINATE_CHIMNEY,
246 NVSP_MSG2_TYPE_TERMINATE_CHIMNEY_COMP,
247
248 NVSP_MSG2_TYPE_INDICATE_CHIMNEY_EVENT,
249
250 NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT,
251 NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT_COMP,
252
253 NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ,
254 NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ_COMP,
255
256 NVSP_MSG2_TYPE_ALLOC_RXBUF,
257 NVSP_MSG2_TYPE_ALLOC_RXBUF_COMP,
258
259 NVSP_MSG2_TYPE_FREE_RXBUF,
260
261 NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT,
262 NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT_COMP,
263
264 NVSP_MSG2_TYPE_SEND_NDIS_CONFIG,
265
266 NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE,
267 NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP,
268
269 NVSP_MSG2_MAX = NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP,
270
271 /* Version 4 messages */
272 NVSP_MSG4_TYPE_SEND_VF_ASSOCIATION,
273 NVSP_MSG4_TYPE_SWITCH_DATA_PATH,
274 NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED,
275
276 NVSP_MSG4_MAX = NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED,
277
278 /* Version 5 messages */
279 NVSP_MSG5_TYPE_OID_QUERY_EX,
280 NVSP_MSG5_TYPE_OID_QUERY_EX_COMP,
281 NVSP_MSG5_TYPE_SUBCHANNEL,
282 NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE,
283
284 NVSP_MSG5_MAX = NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE,
285 };
286
287 enum {
288 NVSP_STAT_NONE = 0,
289 NVSP_STAT_SUCCESS,
290 NVSP_STAT_FAIL,
291 NVSP_STAT_PROTOCOL_TOO_NEW,
292 NVSP_STAT_PROTOCOL_TOO_OLD,
293 NVSP_STAT_INVALID_RNDIS_PKT,
294 NVSP_STAT_BUSY,
295 NVSP_STAT_PROTOCOL_UNSUPPORTED,
296 NVSP_STAT_MAX,
297 };
298
299 struct nvsp_message_header {
300 u32 msg_type;
301 };
302
303 /* Init Messages */
304
305 /*
306 * This message is used by the VSC to initialize the channel after the channels
307 * has been opened. This message should never include anything other then
308 * versioning (i.e. this message will be the same for ever).
309 */
310 struct nvsp_message_init {
311 u32 min_protocol_ver;
312 u32 max_protocol_ver;
313 } __packed;
314
315 /*
316 * This message is used by the VSP to complete the initialization of the
317 * channel. This message should never include anything other then versioning
318 * (i.e. this message will be the same for ever).
319 */
320 struct nvsp_message_init_complete {
321 u32 negotiated_protocol_ver;
322 u32 max_mdl_chain_len;
323 u32 status;
324 } __packed;
325
326 union nvsp_message_init_uber {
327 struct nvsp_message_init init;
328 struct nvsp_message_init_complete init_complete;
329 } __packed;
330
331 /* Version 1 Messages */
332
333 /*
334 * This message is used by the VSC to send the NDIS version to the VSP. The VSP
335 * can use this information when handling OIDs sent by the VSC.
336 */
337 struct nvsp_1_message_send_ndis_version {
338 u32 ndis_major_ver;
339 u32 ndis_minor_ver;
340 } __packed;
341
342 /*
343 * This message is used by the VSC to send a receive buffer to the VSP. The VSP
344 * can then use the receive buffer to send data to the VSC.
345 */
346 struct nvsp_1_message_send_receive_buffer {
347 u32 gpadl_handle;
348 u16 id;
349 } __packed;
350
351 struct nvsp_1_receive_buffer_section {
352 u32 offset;
353 u32 sub_alloc_size;
354 u32 num_sub_allocs;
355 u32 end_offset;
356 } __packed;
357
358 /*
359 * This message is used by the VSP to acknowledge a receive buffer send by the
360 * VSC. This message must be sent by the VSP before the VSP uses the receive
361 * buffer.
362 */
363 struct nvsp_1_message_send_receive_buffer_complete {
364 u32 status;
365 u32 num_sections;
366
367 /*
368 * The receive buffer is split into two parts, a large suballocation
369 * section and a small suballocation section. These sections are then
370 * suballocated by a certain size.
371 */
372
373 /*
374 * For example, the following break up of the receive buffer has 6
375 * large suballocations and 10 small suballocations.
376 */
377
378 /*
379 * | Large Section | | Small Section |
380 * ------------------------------------------------------------
381 * | | | | | | | | | | | | | | | | | |
382 * | |
383 * LargeOffset SmallOffset
384 */
385
386 struct nvsp_1_receive_buffer_section sections[1];
387 } __packed;
388
389 /*
390 * This message is sent by the VSC to revoke the receive buffer. After the VSP
391 * completes this transaction, the vsp should never use the receive buffer
392 * again.
393 */
394 struct nvsp_1_message_revoke_receive_buffer {
395 u16 id;
396 };
397
398 /*
399 * This message is used by the VSC to send a send buffer to the VSP. The VSC
400 * can then use the send buffer to send data to the VSP.
401 */
402 struct nvsp_1_message_send_send_buffer {
403 u32 gpadl_handle;
404 u16 id;
405 } __packed;
406
407 /*
408 * This message is used by the VSP to acknowledge a send buffer sent by the
409 * VSC. This message must be sent by the VSP before the VSP uses the sent
410 * buffer.
411 */
412 struct nvsp_1_message_send_send_buffer_complete {
413 u32 status;
414
415 /*
416 * The VSC gets to choose the size of the send buffer and the VSP gets
417 * to choose the sections size of the buffer. This was done to enable
418 * dynamic reconfigurations when the cost of GPA-direct buffers
419 * decreases.
420 */
421 u32 section_size;
422 } __packed;
423
424 /*
425 * This message is sent by the VSC to revoke the send buffer. After the VSP
426 * completes this transaction, the vsp should never use the send buffer again.
427 */
428 struct nvsp_1_message_revoke_send_buffer {
429 u16 id;
430 };
431
432 /*
433 * This message is used by both the VSP and the VSC to send a RNDIS message to
434 * the opposite channel endpoint.
435 */
436 struct nvsp_1_message_send_rndis_packet {
437 /*
438 * This field is specified by RNIDS. They assume there's two different
439 * channels of communication. However, the Network VSP only has one.
440 * Therefore, the channel travels with the RNDIS packet.
441 */
442 u32 channel_type;
443
444 /*
445 * This field is used to send part or all of the data through a send
446 * buffer. This values specifies an index into the send buffer. If the
447 * index is 0xFFFFFFFF, then the send buffer is not being used and all
448 * of the data was sent through other VMBus mechanisms.
449 */
450 u32 send_buf_section_index;
451 u32 send_buf_section_size;
452 } __packed;
453
454 /*
455 * This message is used by both the VSP and the VSC to complete a RNDIS message
456 * to the opposite channel endpoint. At this point, the initiator of this
457 * message cannot use any resources associated with the original RNDIS packet.
458 */
459 struct nvsp_1_message_send_rndis_packet_complete {
460 u32 status;
461 };
462
463 union nvsp_1_message_uber {
464 struct nvsp_1_message_send_ndis_version send_ndis_ver;
465
466 struct nvsp_1_message_send_receive_buffer send_recv_buf;
467 struct nvsp_1_message_send_receive_buffer_complete
468 send_recv_buf_complete;
469 struct nvsp_1_message_revoke_receive_buffer revoke_recv_buf;
470
471 struct nvsp_1_message_send_send_buffer send_send_buf;
472 struct nvsp_1_message_send_send_buffer_complete send_send_buf_complete;
473 struct nvsp_1_message_revoke_send_buffer revoke_send_buf;
474
475 struct nvsp_1_message_send_rndis_packet send_rndis_pkt;
476 struct nvsp_1_message_send_rndis_packet_complete
477 send_rndis_pkt_complete;
478 } __packed;
479
480
481 /*
482 * Network VSP protocol version 2 messages:
483 */
484 struct nvsp_2_vsc_capability {
485 union {
486 u64 data;
487 struct {
488 u64 vmq:1;
489 u64 chimney:1;
490 u64 sriov:1;
491 u64 ieee8021q:1;
492 u64 correlation_id:1;
493 };
494 };
495 } __packed;
496
497 struct nvsp_2_send_ndis_config {
498 u32 mtu;
499 u32 reserved;
500 struct nvsp_2_vsc_capability capability;
501 } __packed;
502
503 /* Allocate receive buffer */
504 struct nvsp_2_alloc_rxbuf {
505 /* Allocation ID to match the allocation request and response */
506 u32 alloc_id;
507
508 /* Length of the VM shared memory receive buffer that needs to
509 * be allocated
510 */
511 u32 len;
512 } __packed;
513
514 /* Allocate receive buffer complete */
515 struct nvsp_2_alloc_rxbuf_comp {
516 /* The NDIS_STATUS code for buffer allocation */
517 u32 status;
518
519 u32 alloc_id;
520
521 /* GPADL handle for the allocated receive buffer */
522 u32 gpadl_handle;
523
524 /* Receive buffer ID */
525 u64 recv_buf_id;
526 } __packed;
527
528 struct nvsp_2_free_rxbuf {
529 u64 recv_buf_id;
530 } __packed;
531
532 union nvsp_2_message_uber {
533 struct nvsp_2_send_ndis_config send_ndis_config;
534 struct nvsp_2_alloc_rxbuf alloc_rxbuf;
535 struct nvsp_2_alloc_rxbuf_comp alloc_rxbuf_comp;
536 struct nvsp_2_free_rxbuf free_rxbuf;
537 } __packed;
538
539 struct nvsp_4_send_vf_association {
540 /* 1: allocated, serial number is valid. 0: not allocated */
541 u32 allocated;
542
543 /* Serial number of the VF to team with */
544 u32 serial;
545 } __packed;
546
547 enum nvsp_vm_datapath {
548 NVSP_DATAPATH_SYNTHETIC = 0,
549 NVSP_DATAPATH_VF,
550 NVSP_DATAPATH_MAX
551 };
552
553 struct nvsp_4_sw_datapath {
554 u32 active_datapath; /* active data path in VM */
555 } __packed;
556
557 union nvsp_4_message_uber {
558 struct nvsp_4_send_vf_association vf_assoc;
559 struct nvsp_4_sw_datapath active_dp;
560 } __packed;
561
562 enum nvsp_subchannel_operation {
563 NVSP_SUBCHANNEL_NONE = 0,
564 NVSP_SUBCHANNEL_ALLOCATE,
565 NVSP_SUBCHANNEL_MAX
566 };
567
568 struct nvsp_5_subchannel_request {
569 u32 op;
570 u32 num_subchannels;
571 } __packed;
572
573 struct nvsp_5_subchannel_complete {
574 u32 status;
575 u32 num_subchannels; /* Actual number of subchannels allocated */
576 } __packed;
577
578 struct nvsp_5_send_indirect_table {
579 /* The number of entries in the send indirection table */
580 u32 count;
581
582 /* The offset of the send indireciton table from top of this struct.
583 * The send indirection table tells which channel to put the send
584 * traffic on. Each entry is a channel number.
585 */
586 u32 offset;
587 } __packed;
588
589 union nvsp_5_message_uber {
590 struct nvsp_5_subchannel_request subchn_req;
591 struct nvsp_5_subchannel_complete subchn_comp;
592 struct nvsp_5_send_indirect_table send_table;
593 } __packed;
594
595 union nvsp_all_messages {
596 union nvsp_message_init_uber init_msg;
597 union nvsp_1_message_uber v1_msg;
598 union nvsp_2_message_uber v2_msg;
599 union nvsp_4_message_uber v4_msg;
600 union nvsp_5_message_uber v5_msg;
601 } __packed;
602
603 /* ALL Messages */
604 struct nvsp_message {
605 struct nvsp_message_header hdr;
606 union nvsp_all_messages msg;
607 } __packed;
608
609
610 #define NETVSC_MTU 65536
611 #define NETVSC_MTU_MIN 68
612
613 #define NETVSC_RECEIVE_BUFFER_SIZE (1024*1024*16) /* 16MB */
614 #define NETVSC_RECEIVE_BUFFER_SIZE_LEGACY (1024*1024*15) /* 15MB */
615 #define NETVSC_SEND_BUFFER_SIZE (1024 * 1024 * 15) /* 15MB */
616 #define NETVSC_INVALID_INDEX -1
617
618
619 #define NETVSC_RECEIVE_BUFFER_ID 0xcafe
620 #define NETVSC_SEND_BUFFER_ID 0
621
622 #define NETVSC_PACKET_SIZE 4096
623
624 #define VRSS_SEND_TAB_SIZE 16
625 #define VRSS_CHANNEL_MAX 64
626
627 #define RNDIS_MAX_PKT_DEFAULT 8
628 #define RNDIS_PKT_ALIGN_DEFAULT 8
629
630 struct multi_send_data {
631 struct sk_buff *skb; /* skb containing the pkt */
632 struct hv_netvsc_packet *pkt; /* netvsc pkt pending */
633 u32 count; /* counter of batched packets */
634 };
635
636 struct netvsc_stats {
637 u64 packets;
638 u64 bytes;
639 struct u64_stats_sync syncp;
640 };
641
642 struct netvsc_reconfig {
643 struct list_head list;
644 u32 event;
645 };
646
647 /* The context of the netvsc device */
648 struct net_device_context {
649 /* point back to our device context */
650 struct hv_device *device_ctx;
651 /* netvsc_device */
652 struct netvsc_device *nvdev;
653 /* reconfigure work */
654 struct delayed_work dwork;
655 /* last reconfig time */
656 unsigned long last_reconfig;
657 /* reconfig events */
658 struct list_head reconfig_events;
659 /* list protection */
660 spinlock_t lock;
661
662 struct work_struct work;
663 u32 msg_enable; /* debug level */
664
665 struct netvsc_stats __percpu *tx_stats;
666 struct netvsc_stats __percpu *rx_stats;
667
668 /* Ethtool settings */
669 u8 duplex;
670 u32 speed;
671
672 /* the device is going away */
673 bool start_remove;
674
675 /* State to manage the associated VF interface. */
676 struct net_device *vf_netdev;
677 bool vf_inject;
678 atomic_t vf_use_cnt;
679 /* 1: allocated, serial number is valid. 0: not allocated */
680 u32 vf_alloc;
681 /* Serial number of the VF to team with */
682 u32 vf_serial;
683 };
684
685 /* Per netvsc device */
686 struct netvsc_device {
687 u32 nvsp_version;
688
689 atomic_t num_outstanding_sends;
690 wait_queue_head_t wait_drain;
691 bool destroy;
692
693 /* Receive buffer allocated by us but manages by NetVSP */
694 void *recv_buf;
695 u32 recv_buf_size;
696 u32 recv_buf_gpadl_handle;
697 u32 recv_section_cnt;
698 struct nvsp_1_receive_buffer_section *recv_section;
699
700 /* Send buffer allocated by us */
701 void *send_buf;
702 u32 send_buf_size;
703 u32 send_buf_gpadl_handle;
704 u32 send_section_cnt;
705 u32 send_section_size;
706 unsigned long *send_section_map;
707 int map_words;
708
709 /* Used for NetVSP initialization protocol */
710 struct completion channel_init_wait;
711 struct nvsp_message channel_init_pkt;
712
713 struct nvsp_message revoke_packet;
714 /* unsigned char HwMacAddr[HW_MACADDR_LEN]; */
715
716 struct vmbus_channel *chn_table[VRSS_CHANNEL_MAX];
717 u32 send_table[VRSS_SEND_TAB_SIZE];
718 u32 max_chn;
719 u32 num_chn;
720 spinlock_t sc_lock; /* Protects num_sc_offered variable */
721 u32 num_sc_offered;
722 atomic_t queue_sends[VRSS_CHANNEL_MAX];
723
724 /* Holds rndis device info */
725 void *extension;
726
727 int ring_size;
728
729 /* The primary channel callback buffer */
730 unsigned char *cb_buffer;
731 /* The sub channel callback buffer */
732 unsigned char *sub_cb_buf;
733
734 struct multi_send_data msd[VRSS_CHANNEL_MAX];
735 u32 max_pkt; /* max number of pkt in one send, e.g. 8 */
736 u32 pkt_align; /* alignment bytes, e.g. 8 */
737
738 atomic_t open_cnt;
739 };
740
741 static inline struct netvsc_device *
742 net_device_to_netvsc_device(struct net_device *ndev)
743 {
744 return ((struct net_device_context *)netdev_priv(ndev))->nvdev;
745 }
746
747 static inline struct netvsc_device *
748 hv_device_to_netvsc_device(struct hv_device *device)
749 {
750 return net_device_to_netvsc_device(hv_get_drvdata(device));
751 }
752
753 /* NdisInitialize message */
754 struct rndis_initialize_request {
755 u32 req_id;
756 u32 major_ver;
757 u32 minor_ver;
758 u32 max_xfer_size;
759 };
760
761 /* Response to NdisInitialize */
762 struct rndis_initialize_complete {
763 u32 req_id;
764 u32 status;
765 u32 major_ver;
766 u32 minor_ver;
767 u32 dev_flags;
768 u32 medium;
769 u32 max_pkt_per_msg;
770 u32 max_xfer_size;
771 u32 pkt_alignment_factor;
772 u32 af_list_offset;
773 u32 af_list_size;
774 };
775
776 /* Call manager devices only: Information about an address family */
777 /* supported by the device is appended to the response to NdisInitialize. */
778 struct rndis_co_address_family {
779 u32 address_family;
780 u32 major_ver;
781 u32 minor_ver;
782 };
783
784 /* NdisHalt message */
785 struct rndis_halt_request {
786 u32 req_id;
787 };
788
789 /* NdisQueryRequest message */
790 struct rndis_query_request {
791 u32 req_id;
792 u32 oid;
793 u32 info_buflen;
794 u32 info_buf_offset;
795 u32 dev_vc_handle;
796 };
797
798 /* Response to NdisQueryRequest */
799 struct rndis_query_complete {
800 u32 req_id;
801 u32 status;
802 u32 info_buflen;
803 u32 info_buf_offset;
804 };
805
806 /* NdisSetRequest message */
807 struct rndis_set_request {
808 u32 req_id;
809 u32 oid;
810 u32 info_buflen;
811 u32 info_buf_offset;
812 u32 dev_vc_handle;
813 };
814
815 /* Response to NdisSetRequest */
816 struct rndis_set_complete {
817 u32 req_id;
818 u32 status;
819 };
820
821 /* NdisReset message */
822 struct rndis_reset_request {
823 u32 reserved;
824 };
825
826 /* Response to NdisReset */
827 struct rndis_reset_complete {
828 u32 status;
829 u32 addressing_reset;
830 };
831
832 /* NdisMIndicateStatus message */
833 struct rndis_indicate_status {
834 u32 status;
835 u32 status_buflen;
836 u32 status_buf_offset;
837 };
838
839 /* Diagnostic information passed as the status buffer in */
840 /* struct rndis_indicate_status messages signifying error conditions. */
841 struct rndis_diagnostic_info {
842 u32 diag_status;
843 u32 error_offset;
844 };
845
846 /* NdisKeepAlive message */
847 struct rndis_keepalive_request {
848 u32 req_id;
849 };
850
851 /* Response to NdisKeepAlive */
852 struct rndis_keepalive_complete {
853 u32 req_id;
854 u32 status;
855 };
856
857 /*
858 * Data message. All Offset fields contain byte offsets from the beginning of
859 * struct rndis_packet. All Length fields are in bytes. VcHandle is set
860 * to 0 for connectionless data, otherwise it contains the VC handle.
861 */
862 struct rndis_packet {
863 u32 data_offset;
864 u32 data_len;
865 u32 oob_data_offset;
866 u32 oob_data_len;
867 u32 num_oob_data_elements;
868 u32 per_pkt_info_offset;
869 u32 per_pkt_info_len;
870 u32 vc_handle;
871 u32 reserved;
872 };
873
874 /* Optional Out of Band data associated with a Data message. */
875 struct rndis_oobd {
876 u32 size;
877 u32 type;
878 u32 class_info_offset;
879 };
880
881 /* Packet extension field contents associated with a Data message. */
882 struct rndis_per_packet_info {
883 u32 size;
884 u32 type;
885 u32 ppi_offset;
886 };
887
888 enum ndis_per_pkt_info_type {
889 TCPIP_CHKSUM_PKTINFO,
890 IPSEC_PKTINFO,
891 TCP_LARGESEND_PKTINFO,
892 CLASSIFICATION_HANDLE_PKTINFO,
893 NDIS_RESERVED,
894 SG_LIST_PKTINFO,
895 IEEE_8021Q_INFO,
896 ORIGINAL_PKTINFO,
897 PACKET_CANCEL_ID,
898 NBL_HASH_VALUE = PACKET_CANCEL_ID,
899 ORIGINAL_NET_BUFLIST,
900 CACHED_NET_BUFLIST,
901 SHORT_PKT_PADINFO,
902 MAX_PER_PKT_INFO
903 };
904
905 struct ndis_pkt_8021q_info {
906 union {
907 struct {
908 u32 pri:3; /* User Priority */
909 u32 cfi:1; /* Canonical Format ID */
910 u32 vlanid:12; /* VLAN ID */
911 u32 reserved:16;
912 };
913 u32 value;
914 };
915 };
916
917 struct ndis_oject_header {
918 u8 type;
919 u8 revision;
920 u16 size;
921 };
922
923 #define NDIS_OBJECT_TYPE_DEFAULT 0x80
924 #define NDIS_OFFLOAD_PARAMETERS_REVISION_3 3
925 #define NDIS_OFFLOAD_PARAMETERS_NO_CHANGE 0
926 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_DISABLED 1
927 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_ENABLED 2
928 #define NDIS_OFFLOAD_PARAMETERS_LSOV1_ENABLED 2
929 #define NDIS_OFFLOAD_PARAMETERS_RSC_DISABLED 1
930 #define NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED 2
931 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_DISABLED 1
932 #define NDIS_OFFLOAD_PARAMETERS_TX_ENABLED_RX_DISABLED 2
933 #define NDIS_OFFLOAD_PARAMETERS_RX_ENABLED_TX_DISABLED 3
934 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED 4
935
936 #define NDIS_TCP_LARGE_SEND_OFFLOAD_V2_TYPE 1
937 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV4 0
938 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV6 1
939
940 #define VERSION_4_OFFLOAD_SIZE 22
941 /*
942 * New offload OIDs for NDIS 6
943 */
944 #define OID_TCP_OFFLOAD_CURRENT_CONFIG 0xFC01020B /* query only */
945 #define OID_TCP_OFFLOAD_PARAMETERS 0xFC01020C /* set only */
946 #define OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020D/* query only */
947 #define OID_TCP_CONNECTION_OFFLOAD_CURRENT_CONFIG 0xFC01020E /* query only */
948 #define OID_TCP_CONNECTION_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020F /* query */
949 #define OID_OFFLOAD_ENCAPSULATION 0x0101010A /* set/query */
950
951 struct ndis_offload_params {
952 struct ndis_oject_header header;
953 u8 ip_v4_csum;
954 u8 tcp_ip_v4_csum;
955 u8 udp_ip_v4_csum;
956 u8 tcp_ip_v6_csum;
957 u8 udp_ip_v6_csum;
958 u8 lso_v1;
959 u8 ip_sec_v1;
960 u8 lso_v2_ipv4;
961 u8 lso_v2_ipv6;
962 u8 tcp_connection_ip_v4;
963 u8 tcp_connection_ip_v6;
964 u32 flags;
965 u8 ip_sec_v2;
966 u8 ip_sec_v2_ip_v4;
967 struct {
968 u8 rsc_ip_v4;
969 u8 rsc_ip_v6;
970 };
971 struct {
972 u8 encapsulated_packet_task_offload;
973 u8 encapsulation_types;
974 };
975 };
976
977 struct ndis_tcp_ip_checksum_info {
978 union {
979 struct {
980 u32 is_ipv4:1;
981 u32 is_ipv6:1;
982 u32 tcp_checksum:1;
983 u32 udp_checksum:1;
984 u32 ip_header_checksum:1;
985 u32 reserved:11;
986 u32 tcp_header_offset:10;
987 } transmit;
988 struct {
989 u32 tcp_checksum_failed:1;
990 u32 udp_checksum_failed:1;
991 u32 ip_checksum_failed:1;
992 u32 tcp_checksum_succeeded:1;
993 u32 udp_checksum_succeeded:1;
994 u32 ip_checksum_succeeded:1;
995 u32 loopback:1;
996 u32 tcp_checksum_value_invalid:1;
997 u32 ip_checksum_value_invalid:1;
998 } receive;
999 u32 value;
1000 };
1001 };
1002
1003 struct ndis_tcp_lso_info {
1004 union {
1005 struct {
1006 u32 unused:30;
1007 u32 type:1;
1008 u32 reserved2:1;
1009 } transmit;
1010 struct {
1011 u32 mss:20;
1012 u32 tcp_header_offset:10;
1013 u32 type:1;
1014 u32 reserved2:1;
1015 } lso_v1_transmit;
1016 struct {
1017 u32 tcp_payload:30;
1018 u32 type:1;
1019 u32 reserved2:1;
1020 } lso_v1_transmit_complete;
1021 struct {
1022 u32 mss:20;
1023 u32 tcp_header_offset:10;
1024 u32 type:1;
1025 u32 ip_version:1;
1026 } lso_v2_transmit;
1027 struct {
1028 u32 reserved:30;
1029 u32 type:1;
1030 u32 reserved2:1;
1031 } lso_v2_transmit_complete;
1032 u32 value;
1033 };
1034 };
1035
1036 #define NDIS_VLAN_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1037 sizeof(struct ndis_pkt_8021q_info))
1038
1039 #define NDIS_CSUM_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1040 sizeof(struct ndis_tcp_ip_checksum_info))
1041
1042 #define NDIS_LSO_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1043 sizeof(struct ndis_tcp_lso_info))
1044
1045 #define NDIS_HASH_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1046 sizeof(u32))
1047
1048 /* Total size of all PPI data */
1049 #define NDIS_ALL_PPI_SIZE (NDIS_VLAN_PPI_SIZE + NDIS_CSUM_PPI_SIZE + \
1050 NDIS_LSO_PPI_SIZE + NDIS_HASH_PPI_SIZE)
1051
1052 /* Format of Information buffer passed in a SetRequest for the OID */
1053 /* OID_GEN_RNDIS_CONFIG_PARAMETER. */
1054 struct rndis_config_parameter_info {
1055 u32 parameter_name_offset;
1056 u32 parameter_name_length;
1057 u32 parameter_type;
1058 u32 parameter_value_offset;
1059 u32 parameter_value_length;
1060 };
1061
1062 /* Values for ParameterType in struct rndis_config_parameter_info */
1063 #define RNDIS_CONFIG_PARAM_TYPE_INTEGER 0
1064 #define RNDIS_CONFIG_PARAM_TYPE_STRING 2
1065
1066 /* CONDIS Miniport messages for connection oriented devices */
1067 /* that do not implement a call manager. */
1068
1069 /* CoNdisMiniportCreateVc message */
1070 struct rcondis_mp_create_vc {
1071 u32 req_id;
1072 u32 ndis_vc_handle;
1073 };
1074
1075 /* Response to CoNdisMiniportCreateVc */
1076 struct rcondis_mp_create_vc_complete {
1077 u32 req_id;
1078 u32 dev_vc_handle;
1079 u32 status;
1080 };
1081
1082 /* CoNdisMiniportDeleteVc message */
1083 struct rcondis_mp_delete_vc {
1084 u32 req_id;
1085 u32 dev_vc_handle;
1086 };
1087
1088 /* Response to CoNdisMiniportDeleteVc */
1089 struct rcondis_mp_delete_vc_complete {
1090 u32 req_id;
1091 u32 status;
1092 };
1093
1094 /* CoNdisMiniportQueryRequest message */
1095 struct rcondis_mp_query_request {
1096 u32 req_id;
1097 u32 request_type;
1098 u32 oid;
1099 u32 dev_vc_handle;
1100 u32 info_buflen;
1101 u32 info_buf_offset;
1102 };
1103
1104 /* CoNdisMiniportSetRequest message */
1105 struct rcondis_mp_set_request {
1106 u32 req_id;
1107 u32 request_type;
1108 u32 oid;
1109 u32 dev_vc_handle;
1110 u32 info_buflen;
1111 u32 info_buf_offset;
1112 };
1113
1114 /* CoNdisIndicateStatus message */
1115 struct rcondis_indicate_status {
1116 u32 ndis_vc_handle;
1117 u32 status;
1118 u32 status_buflen;
1119 u32 status_buf_offset;
1120 };
1121
1122 /* CONDIS Call/VC parameters */
1123 struct rcondis_specific_parameters {
1124 u32 parameter_type;
1125 u32 parameter_length;
1126 u32 parameter_lffset;
1127 };
1128
1129 struct rcondis_media_parameters {
1130 u32 flags;
1131 u32 reserved1;
1132 u32 reserved2;
1133 struct rcondis_specific_parameters media_specific;
1134 };
1135
1136 struct rndis_flowspec {
1137 u32 token_rate;
1138 u32 token_bucket_size;
1139 u32 peak_bandwidth;
1140 u32 latency;
1141 u32 delay_variation;
1142 u32 service_type;
1143 u32 max_sdu_size;
1144 u32 minimum_policed_size;
1145 };
1146
1147 struct rcondis_call_manager_parameters {
1148 struct rndis_flowspec transmit;
1149 struct rndis_flowspec receive;
1150 struct rcondis_specific_parameters call_mgr_specific;
1151 };
1152
1153 /* CoNdisMiniportActivateVc message */
1154 struct rcondis_mp_activate_vc_request {
1155 u32 req_id;
1156 u32 flags;
1157 u32 dev_vc_handle;
1158 u32 media_params_offset;
1159 u32 media_params_length;
1160 u32 call_mgr_params_offset;
1161 u32 call_mgr_params_length;
1162 };
1163
1164 /* Response to CoNdisMiniportActivateVc */
1165 struct rcondis_mp_activate_vc_complete {
1166 u32 req_id;
1167 u32 status;
1168 };
1169
1170 /* CoNdisMiniportDeactivateVc message */
1171 struct rcondis_mp_deactivate_vc_request {
1172 u32 req_id;
1173 u32 flags;
1174 u32 dev_vc_handle;
1175 };
1176
1177 /* Response to CoNdisMiniportDeactivateVc */
1178 struct rcondis_mp_deactivate_vc_complete {
1179 u32 req_id;
1180 u32 status;
1181 };
1182
1183
1184 /* union with all of the RNDIS messages */
1185 union rndis_message_container {
1186 struct rndis_packet pkt;
1187 struct rndis_initialize_request init_req;
1188 struct rndis_halt_request halt_req;
1189 struct rndis_query_request query_req;
1190 struct rndis_set_request set_req;
1191 struct rndis_reset_request reset_req;
1192 struct rndis_keepalive_request keep_alive_req;
1193 struct rndis_indicate_status indicate_status;
1194 struct rndis_initialize_complete init_complete;
1195 struct rndis_query_complete query_complete;
1196 struct rndis_set_complete set_complete;
1197 struct rndis_reset_complete reset_complete;
1198 struct rndis_keepalive_complete keep_alive_complete;
1199 struct rcondis_mp_create_vc co_miniport_create_vc;
1200 struct rcondis_mp_delete_vc co_miniport_delete_vc;
1201 struct rcondis_indicate_status co_indicate_status;
1202 struct rcondis_mp_activate_vc_request co_miniport_activate_vc;
1203 struct rcondis_mp_deactivate_vc_request co_miniport_deactivate_vc;
1204 struct rcondis_mp_create_vc_complete co_miniport_create_vc_complete;
1205 struct rcondis_mp_delete_vc_complete co_miniport_delete_vc_complete;
1206 struct rcondis_mp_activate_vc_complete co_miniport_activate_vc_complete;
1207 struct rcondis_mp_deactivate_vc_complete
1208 co_miniport_deactivate_vc_complete;
1209 };
1210
1211 /* Remote NDIS message format */
1212 struct rndis_message {
1213 u32 ndis_msg_type;
1214
1215 /* Total length of this message, from the beginning */
1216 /* of the sruct rndis_message, in bytes. */
1217 u32 msg_len;
1218
1219 /* Actual message */
1220 union rndis_message_container msg;
1221 };
1222
1223
1224 /* Handy macros */
1225
1226 /* get the size of an RNDIS message. Pass in the message type, */
1227 /* struct rndis_set_request, struct rndis_packet for example */
1228 #define RNDIS_MESSAGE_SIZE(msg) \
1229 (sizeof(msg) + (sizeof(struct rndis_message) - \
1230 sizeof(union rndis_message_container)))
1231
1232 /* get pointer to info buffer with message pointer */
1233 #define MESSAGE_TO_INFO_BUFFER(msg) \
1234 (((unsigned char *)(msg)) + msg->info_buf_offset)
1235
1236 /* get pointer to status buffer with message pointer */
1237 #define MESSAGE_TO_STATUS_BUFFER(msg) \
1238 (((unsigned char *)(msg)) + msg->status_buf_offset)
1239
1240 /* get pointer to OOBD buffer with message pointer */
1241 #define MESSAGE_TO_OOBD_BUFFER(msg) \
1242 (((unsigned char *)(msg)) + msg->oob_data_offset)
1243
1244 /* get pointer to data buffer with message pointer */
1245 #define MESSAGE_TO_DATA_BUFFER(msg) \
1246 (((unsigned char *)(msg)) + msg->per_pkt_info_offset)
1247
1248 /* get pointer to contained message from NDIS_MESSAGE pointer */
1249 #define RNDIS_MESSAGE_PTR_TO_MESSAGE_PTR(rndis_msg) \
1250 ((void *) &rndis_msg->msg)
1251
1252 /* get pointer to contained message from NDIS_MESSAGE pointer */
1253 #define RNDIS_MESSAGE_RAW_PTR_TO_MESSAGE_PTR(rndis_msg) \
1254 ((void *) rndis_msg)
1255
1256
1257 #define __struct_bcount(x)
1258
1259
1260
1261 #define RNDIS_HEADER_SIZE (sizeof(struct rndis_message) - \
1262 sizeof(union rndis_message_container))
1263
1264 #define RNDIS_AND_PPI_SIZE (sizeof(struct rndis_message) + NDIS_ALL_PPI_SIZE)
1265
1266 #define NDIS_PACKET_TYPE_DIRECTED 0x00000001
1267 #define NDIS_PACKET_TYPE_MULTICAST 0x00000002
1268 #define NDIS_PACKET_TYPE_ALL_MULTICAST 0x00000004
1269 #define NDIS_PACKET_TYPE_BROADCAST 0x00000008
1270 #define NDIS_PACKET_TYPE_SOURCE_ROUTING 0x00000010
1271 #define NDIS_PACKET_TYPE_PROMISCUOUS 0x00000020
1272 #define NDIS_PACKET_TYPE_SMT 0x00000040
1273 #define NDIS_PACKET_TYPE_ALL_LOCAL 0x00000080
1274 #define NDIS_PACKET_TYPE_GROUP 0x00000100
1275 #define NDIS_PACKET_TYPE_ALL_FUNCTIONAL 0x00000200
1276 #define NDIS_PACKET_TYPE_FUNCTIONAL 0x00000400
1277 #define NDIS_PACKET_TYPE_MAC_FRAME 0x00000800
1278
1279 #define INFO_IPV4 2
1280 #define INFO_IPV6 4
1281 #define INFO_TCP 2
1282 #define INFO_UDP 4
1283
1284 #define TRANSPORT_INFO_NOT_IP 0
1285 #define TRANSPORT_INFO_IPV4_TCP ((INFO_IPV4 << 16) | INFO_TCP)
1286 #define TRANSPORT_INFO_IPV4_UDP ((INFO_IPV4 << 16) | INFO_UDP)
1287 #define TRANSPORT_INFO_IPV6_TCP ((INFO_IPV6 << 16) | INFO_TCP)
1288 #define TRANSPORT_INFO_IPV6_UDP ((INFO_IPV6 << 16) | INFO_UDP)
1289
1290 #endif /* _HYPERV_NET_H */
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