blob: 9dca7a892978a49d234a2b9325228b2c900d1276 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
|
#ifndef _SPARC64_VIO_H
#define _SPARC64_VIO_H
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/mod_devicetable.h>
#include <linux/timer.h>
#include <linux/spinlock.h>
#include <linux/completion.h>
#include <linux/list.h>
#include <linux/log2.h>
#include <asm/ldc.h>
#include <asm/mdesc.h>
struct vio_msg_tag {
u8 type;
#define VIO_TYPE_CTRL 0x01
#define VIO_TYPE_DATA 0x02
#define VIO_TYPE_ERR 0x04
u8 stype;
#define VIO_SUBTYPE_INFO 0x01
#define VIO_SUBTYPE_ACK 0x02
#define VIO_SUBTYPE_NACK 0x04
u16 stype_env;
#define VIO_VER_INFO 0x0001
#define VIO_ATTR_INFO 0x0002
#define VIO_DRING_REG 0x0003
#define VIO_DRING_UNREG 0x0004
#define VIO_RDX 0x0005
#define VIO_PKT_DATA 0x0040
#define VIO_DESC_DATA 0x0041
#define VIO_DRING_DATA 0x0042
#define VNET_MCAST_INFO 0x0101
u32 sid;
};
struct vio_rdx {
struct vio_msg_tag tag;
u64 resv[6];
};
struct vio_ver_info {
struct vio_msg_tag tag;
u16 major;
u16 minor;
u8 dev_class;
#define VDEV_NETWORK 0x01
#define VDEV_NETWORK_SWITCH 0x02
#define VDEV_DISK 0x03
#define VDEV_DISK_SERVER 0x04
u8 resv1[3];
u64 resv2[5];
};
struct vio_dring_register {
struct vio_msg_tag tag;
u64 dring_ident;
u32 num_descr;
u32 descr_size;
u16 options;
#define VIO_TX_DRING 0x0001
#define VIO_RX_DRING 0x0002
#define VIO_RX_DRING_DATA 0x0004
u16 resv;
u32 num_cookies;
struct ldc_trans_cookie cookies[0];
};
struct vio_dring_unregister {
struct vio_msg_tag tag;
u64 dring_ident;
u64 resv[5];
};
/* Data transfer modes */
#define VIO_PKT_MODE 0x01 /* Packet based transfer */
#define VIO_DESC_MODE 0x02 /* In-band descriptors */
#define VIO_DRING_MODE 0x03 /* Descriptor rings */
/* in vers >= 1.2, VIO_DRING_MODE is 0x04 and transfer mode is a bitmask */
#define VIO_NEW_DRING_MODE 0x04
struct vio_dring_data {
struct vio_msg_tag tag;
u64 seq;
u64 dring_ident;
u32 start_idx;
u32 end_idx;
u8 state;
#define VIO_DRING_ACTIVE 0x01
#define VIO_DRING_STOPPED 0x02
u8 __pad1;
u16 __pad2;
u32 __pad3;
u64 __par4[2];
};
struct vio_dring_hdr {
u8 state;
#define VIO_DESC_FREE 0x01
#define VIO_DESC_READY 0x02
#define VIO_DESC_ACCEPTED 0x03
#define VIO_DESC_DONE 0x04
u8 ack;
#define VIO_ACK_ENABLE 0x01
#define VIO_ACK_DISABLE 0x00
u16 __pad1;
u32 __pad2;
};
/* VIO disk specific structures and defines */
struct vio_disk_attr_info {
struct vio_msg_tag tag;
u8 xfer_mode;
u8 vdisk_type;
#define VD_DISK_TYPE_SLICE 0x01 /* Slice in block device */
#define VD_DISK_TYPE_DISK 0x02 /* Entire block device */
u8 vdisk_mtype; /* v1.1 */
#define VD_MEDIA_TYPE_FIXED 0x01 /* Fixed device */
#define VD_MEDIA_TYPE_CD 0x02 /* CD Device */
#define VD_MEDIA_TYPE_DVD 0x03 /* DVD Device */
u8 resv1;
u32 vdisk_block_size;
u64 operations;
u64 vdisk_size; /* v1.1 */
u64 max_xfer_size;
u32 phys_block_size; /* v1.2 */
u32 resv2;
u64 resv3[1];
};
struct vio_disk_desc {
struct vio_dring_hdr hdr;
u64 req_id;
u8 operation;
#define VD_OP_BREAD 0x01 /* Block read */
#define VD_OP_BWRITE 0x02 /* Block write */
#define VD_OP_FLUSH 0x03 /* Flush disk contents */
#define VD_OP_GET_WCE 0x04 /* Get write-cache status */
#define VD_OP_SET_WCE 0x05 /* Enable/disable write-cache */
#define VD_OP_GET_VTOC 0x06 /* Get VTOC */
#define VD_OP_SET_VTOC 0x07 /* Set VTOC */
#define VD_OP_GET_DISKGEOM 0x08 /* Get disk geometry */
#define VD_OP_SET_DISKGEOM 0x09 /* Set disk geometry */
#define VD_OP_SCSICMD 0x0a /* SCSI control command */
#define VD_OP_GET_DEVID 0x0b /* Get device ID */
#define VD_OP_GET_EFI 0x0c /* Get EFI */
#define VD_OP_SET_EFI 0x0d /* Set EFI */
u8 slice;
u16 resv1;
u32 status;
u64 offset;
u64 size;
u32 ncookies;
u32 resv2;
struct ldc_trans_cookie cookies[0];
};
#define VIO_DISK_VNAME_LEN 8
#define VIO_DISK_ALABEL_LEN 128
#define VIO_DISK_NUM_PART 8
struct vio_disk_vtoc {
u8 volume_name[VIO_DISK_VNAME_LEN];
u16 sector_size;
u16 num_partitions;
u8 ascii_label[VIO_DISK_ALABEL_LEN];
struct {
u16 id;
u16 perm_flags;
u32 resv;
u64 start_block;
u64 num_blocks;
} partitions[VIO_DISK_NUM_PART];
};
struct vio_disk_geom {
u16 num_cyl; /* Num data cylinders */
u16 alt_cyl; /* Num alternate cylinders */
u16 beg_cyl; /* Cyl off of fixed head area */
u16 num_hd; /* Num heads */
u16 num_sec; /* Num sectors */
u16 ifact; /* Interleave factor */
u16 apc; /* Alts per cylinder (SCSI) */
u16 rpm; /* Revolutions per minute */
u16 phy_cyl; /* Num physical cylinders */
u16 wr_skip; /* Num sects to skip, writes */
u16 rd_skip; /* Num sects to skip, writes */
};
struct vio_disk_devid {
u16 resv;
u16 type;
u32 len;
char id[0];
};
struct vio_disk_efi {
u64 lba;
u64 len;
char data[0];
};
/* VIO net specific structures and defines */
struct vio_net_attr_info {
struct vio_msg_tag tag;
u8 xfer_mode;
u8 addr_type;
#define VNET_ADDR_ETHERMAC 0x01
u16 ack_freq;
u8 plnk_updt;
#define PHYSLINK_UPDATE_NONE 0x00
#define PHYSLINK_UPDATE_STATE 0x01
#define PHYSLINK_UPDATE_STATE_ACK 0x02
#define PHYSLINK_UPDATE_STATE_NACK 0x03
u8 options;
u16 resv1;
u64 addr;
u64 mtu;
u16 cflags;
#define VNET_LSO_IPV4_CAPAB 0x0001
u16 ipv4_lso_maxlen;
u32 resv2;
u64 resv3[2];
};
#define VNET_NUM_MCAST 7
struct vio_net_mcast_info {
struct vio_msg_tag tag;
u8 set;
u8 count;
u8 mcast_addr[VNET_NUM_MCAST * 6];
u32 resv;
};
struct vio_net_desc {
struct vio_dring_hdr hdr;
u32 size;
u32 ncookies;
struct ldc_trans_cookie cookies[0];
};
struct vio_net_dext {
u8 flags;
#define VNET_PKT_HASH 0x01
#define VNET_PKT_HCK_IPV4_HDRCKSUM 0x02
#define VNET_PKT_HCK_FULLCKSUM 0x04
#define VNET_PKT_IPV4_LSO 0x08
#define VNET_PKT_HCK_IPV4_HDRCKSUM_OK 0x10
#define VNET_PKT_HCK_FULLCKSUM_OK 0x20
u8 vnet_hashval;
u16 ipv4_lso_mss;
u32 resv3;
};
static inline struct vio_net_dext *vio_net_ext(struct vio_net_desc *desc)
{
return (struct vio_net_dext *)&desc->cookies[2];
}
#define VIO_MAX_RING_COOKIES 24
struct vio_dring_state {
u64 ident;
void *base;
u64 snd_nxt;
u64 rcv_nxt;
u32 entry_size;
u32 num_entries;
u32 prod;
u32 cons;
u32 pending;
int ncookies;
struct ldc_trans_cookie cookies[VIO_MAX_RING_COOKIES];
};
static inline void *vio_dring_cur(struct vio_dring_state *dr)
{
return dr->base + (dr->entry_size * dr->prod);
}
static inline void *vio_dring_entry(struct vio_dring_state *dr,
unsigned int index)
{
return dr->base + (dr->entry_size * index);
}
static inline u32 vio_dring_avail(struct vio_dring_state *dr,
unsigned int ring_size)
{
return (dr->pending -
((dr->prod - dr->cons) & (ring_size - 1)) - 1);
}
static inline u32 vio_dring_next(struct vio_dring_state *dr, u32 index)
{
if (++index == dr->num_entries)
index = 0;
return index;
}
static inline u32 vio_dring_prev(struct vio_dring_state *dr, u32 index)
{
if (index == 0)
return dr->num_entries - 1;
else
return index - 1;
}
#define VIO_MAX_TYPE_LEN 32
#define VIO_MAX_COMPAT_LEN 64
struct vio_dev {
u64 mp;
struct device_node *dp;
char type[VIO_MAX_TYPE_LEN];
char compat[VIO_MAX_COMPAT_LEN];
int compat_len;
u64 dev_no;
u64 id;
unsigned long channel_id;
unsigned int tx_irq;
unsigned int rx_irq;
u64 rx_ino;
struct device dev;
};
struct vio_driver {
const char *name;
struct list_head node;
const struct vio_device_id *id_table;
int (*probe)(struct vio_dev *dev, const struct vio_device_id *id);
int (*remove)(struct vio_dev *dev);
void (*
|