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
|
/* SPDX-License-Identifier: GPL-2.0-only */
/****************************************************************************
* Driver for Solarflare network controllers and boards
* Copyright 2008-2013 Solarflare Communications Inc.
*/
#ifndef EFX_MCDI_H
#define EFX_MCDI_H
/**
* enum efx_mcdi_state - MCDI request handling state
* @MCDI_STATE_QUIESCENT: No pending MCDI requests. If the caller holds the
* mcdi @iface_lock then they are able to move to %MCDI_STATE_RUNNING
* @MCDI_STATE_RUNNING_SYNC: There is a synchronous MCDI request pending.
* Only the thread that moved into this state is allowed to move out of it.
* @MCDI_STATE_RUNNING_ASYNC: There is an asynchronous MCDI request pending.
* @MCDI_STATE_PROXY_WAIT: An MCDI request has completed with a response that
* indicates we must wait for a proxy try again message.
* @MCDI_STATE_COMPLETED: An MCDI request has completed, but the owning thread
* has not yet consumed the result. For all other threads, equivalent to
* %MCDI_STATE_RUNNING.
*/
enum efx_mcdi_state {
MCDI_STATE_QUIESCENT,
MCDI_STATE_RUNNING_SYNC,
MCDI_STATE_RUNNING_ASYNC,
MCDI_STATE_PROXY_WAIT,
MCDI_STATE_COMPLETED,
};
/**
* enum efx_mcdi_mode - MCDI transaction mode
* @MCDI_MODE_POLL: poll for MCDI completion, until timeout
* @MCDI_MODE_EVENTS: wait for an mcdi_event. On timeout, poll once
* @MCDI_MODE_FAIL: we think MCDI is dead, so fail-fast all calls
*/
enum efx_mcdi_mode {
MCDI_MODE_POLL,
MCDI_MODE_EVENTS,
MCDI_MODE_FAIL,
};
/**
* struct efx_mcdi_iface - MCDI protocol context
* @efx: The associated NIC.
* @state: Request handling state. Waited for by @wq.
* @mode: Poll for mcdi completion, or wait for an mcdi_event.
* @wq: Wait queue for threads waiting for @state != %MCDI_STATE_RUNNING
* @new_epoch: Indicates start of day or start of MC reboot recovery
* @iface_lock: Serialises access to @seqno, @credits and response metadata
* @seqno: The next sequence number to use for mcdi requests.
* @credits: Number of spurious MCDI completion events allowed before we
* trigger a fatal error
* @resprc: Response error/success code (Linux numbering)
* @resp_hdr_len: Response header length
* @resp_data_len: Response data (SDU or error) length
* @async_lock: Serialises access to @async_list while event processing is
* enabled
* @async_list: Queue of asynchronous requests
* @async_timer: Timer for asynchronous request timeout
* @logging_buffer: buffer that may be used to build MCDI tracing messages
* @logging_enabled: whether to trace MCDI
* @proxy_rx_handle: Most recently received proxy authorisation handle
* @proxy_rx_status: Status of most recent proxy authorisation
* @proxy_rx_wq: Wait queue for updates to proxy_rx_handle
*/
struct efx_mcdi_iface {
struct efx_nic *efx;
enum efx_mcdi_state state;
enum efx_mcdi_mode mode;
wait_queue_head_t wq;
spinlock_t iface_lock;
bool new_epoch;
unsigned int credits;
unsigned int seqno;
int resprc;
int resprc_raw;
size_t resp_hdr_len;
size_t resp_data_len;
spinlock_t async_lock;
struct list_head async_list;
struct timer_list async_timer;
#ifdef CONFIG_SFC_MCDI_LOGGING
char *logging_buffer;
bool logging_enabled;
#endif
unsigned int proxy_rx_handle;
int proxy_rx_status;
wait_queue_head_t proxy_rx_wq;
};
struct efx_mcdi_mon {
struct efx_buffer dma_buf;
struct mutex update_lock;
unsigned long last_update;
struct device *device;
struct efx_mcdi_mon_attribute *attrs;
struct attribute_group group;
const struct attribute_group *groups[2];
unsigned int n_attrs;
};
struct efx_mcdi_mtd_partition {
struct efx_mtd_partition common;
bool updating;
u16 nvram_type;
u16 fw_subtype;
};
#define to_efx_mcdi_mtd_partition(mtd) \
container_of(mtd, struct efx_mcdi_mtd_partition, common.mtd)
/**
* struct efx_mcdi_data - extra state for NICs that implement MCDI
* @iface: Interface/protocol state
* @hwmon: Hardware monitor state
* @fn_flags: Flags for this function, as returned by %MC_CMD_DRV_ATTACH.
*/
struct efx_mcdi_data {
struct efx_mcdi_iface iface;
#ifdef CONFIG_SFC_MCDI_MON
struct efx_mcdi_mon hwmon;
#endif
u32 fn_flags;
};
static inline struct efx_mcdi_iface *efx_mcdi(struct efx_nic *efx)
{
EFX_WARN_ON_PARANOID(!efx->mcdi);
return &efx->mcdi->iface;
}
#ifdef CONFIG_SFC_MCDI_MON
static inline struct efx_mcdi_mon *efx_mcdi_mon(struct efx_nic *efx)
{
EFX_WARN_ON_PARANOID(!efx->mcdi);
return &efx->mcdi->hwmon;
}
#endif
int efx_mcdi_init(struct efx_nic *efx);
void efx_mcdi_detach(struct efx_nic *efx);
void efx_mcdi_fini(struct efx_nic *efx);
int efx_mcdi_rpc(struct efx_nic *efx, unsigned cmd, const efx_dword_t *inbuf,
size_t inlen, efx_dword_t *outbuf, size_t outlen,
size_t *outlen_actual);
int efx_mcdi_rpc_quiet(struct efx_nic *efx, unsigned cmd,
const efx_dword_t *inbuf, size_t inlen,
efx_dword_t *outbuf, size_t outlen,
size_t *outlen_actual);
int efx_mcdi_rpc_start(struct efx_nic *efx, unsigned cmd,
const efx_dword_t *inbuf, size_t inlen);
int efx_mcdi_rpc_finish(struct efx_nic *efx, unsigned cmd, size_t inlen,
efx_dword_t *outbuf, size_t outlen,
size_t *outlen_actual);
int efx_mcdi_rpc_finish_quiet(struct efx_nic *efx, unsigned cmd,
size_t inlen, efx_dword_t *outbuf,
size_t outlen, size_t *outlen_actual);
typedef void efx_mcdi_async_completer(struct efx_nic *efx,
unsigned long cookie, int rc,
efx_dword_t *outbuf,
size_t outlen_actual);
int efx_mcdi_rpc_async(struct efx_nic *efx, unsigned int cmd,
const efx_dword_t *inbuf, size_t inlen, size_t outlen,
efx_mcdi_async_completer *complete,
unsigned long cookie);
int efx_mcdi_rpc_async_quiet(struct efx_nic *efx, unsigned int cmd,
const efx_dword_t *inbuf, size_t inlen,
size_t outlen,
efx_mcdi_async_completer *complete,
unsigned long cookie);
void efx_mcdi_display_error(struct efx_nic *efx, unsigned cmd,
size_t inlen, efx_dword_t *outbuf,
size_t outlen, int rc);
int efx_mcdi_poll_reboot(struct efx_nic *efx);
void efx_mcdi_mode_poll(struct efx_nic *efx);
void efx_mcdi_mode_event(struct efx_nic *efx);
void efx_mcdi_flush_async(struct efx_nic *efx);
void efx_mcdi_process_event(struct efx_channel *channel, efx_qword_t *event);
void efx_mcdi_sensor_event(struct efx_nic *efx, efx_qword_t *ev);
/* We expect that 16- and 32-bit fields in MCDI requests and responses
* are appropriately aligned, but 64-bit fields are only
* 32-bit-aligned. Also, on Siena we must copy to the MC shared
* memory strictly 32 bits at a time, so add any necessary padding.
*/
#define MCDI_TX_BUF_LEN(_len) DIV_ROUND_UP((_len), 4)
#define _MCDI_DECLARE_BUF(_name, _len) \
efx_dword_t _name[DIV_ROUND_UP(_len, 4)]
#define MCDI_DECLARE_BUF(_name, _len) \
_MCDI_DECLARE_BUF(_name, _len) = {{{0}}}
#define MCDI_DECLARE_BUF_ERR(_name) \
MCDI_DECLARE_BUF(_name, 8)
#define _MCDI_PTR(_buf, _offset) \
((u8 *)(_buf) + (_offset))
#define MCDI_PTR(_buf, _field) \
_MCDI_PTR(_buf, MC_CMD_ ## _field ## _OFST)
#define _MCDI_CHECK_ALIGN(_ofst, _align) \
((_ofst) + BUILD_BUG_ON_ZERO((_ofst) & (_align - 1)))
#define _MCDI_DWORD(_buf, _field) \
((_buf) + (_MCDI_CHECK_ALIGN(MC_CMD_ ## _field ## _OFST, 4) >> 2))
#define MCDI_BYTE(_buf, _field) \
((void)BUILD_BUG_ON_ZERO(MC_CMD_ ## _field ## _LEN != 1), \
*MCDI_PTR(_buf, _field))
#define MCDI_WORD(_buf, _field) \
((u16)BUILD_BUG_ON_ZERO(MC_CMD_ ## _field ## _LEN != 2) + \
le16_to_cpu(*(__force const __le16 *)MCDI_PTR(_buf, _field)))
#define MCDI_SET_DWORD(_buf, _field, _value) \
EFX_POPULATE_DWORD_1(*_MCDI_DWORD(_buf, _field), EFX_DWORD_0, _value)
#define MCDI_DWORD(_buf, _field) \
EFX_DWORD_FIELD(*_MCDI_DWORD(_buf, _field), EFX_DWORD_0)
#define MCDI_POPULATE_DWORD_1(_buf, _field, _name1, _value1) \
EFX_POPULATE_DWORD_1(*_MCDI_DWORD(_buf, _field), \
MC_CMD_ ## _name1, _value1)
#define MCDI_POPULATE_DWORD_2(_buf, _field, _name1, _value1, \
_name2, _value2) \
EFX_POPULATE_DWORD_2(*_MCDI_DWORD(_buf, _field), \
MC_CMD_ ## _name1, _value1, \
MC_CMD_ ## _name2, _value2)
#define MCDI_POPULATE_DWORD_3(_buf, _field, _name1, _value1, \
_name2, _value2, _name3, _value3) \
EFX_POPULATE_DWORD_3(*_MCDI_DWORD(_buf, _field), \
MC_CMD_ ## _name1, _value1, \
MC_CMD_ ## _name2, _value2, \
MC_CMD_ ## _name3, _value3)
#define MCDI_POPULATE_DWORD_4(_buf, _field, _name1, _value1, \
_name2, _value2, _name3, _value3, \
_name4, _value4) \
EFX_POPULATE_DWORD_4(*_MCDI_DWORD(_buf, _field), \
MC_CMD_ ## _name1, _value1, \
MC_CMD_ ## _name2, _value2, \
MC_CMD_ ## _name3, _value3, \
MC_CMD_ ## _name4, _value4)
#define MCDI_POPULATE_DWORD_5(_buf, _field, _name1, _value1, \
_name2, _value2, _name3, _value3, \
_name4, _value4, _name5, _value5) \
EFX_POPULATE_DWORD_5(*_MCDI_DWORD(_buf, _field), \
MC_CMD_ ## _name1, _value1, \
MC_CMD_ ## _name2, _value2, \
MC_CMD_ ## _name3, _value3, \
MC_CMD_ ## _name4, _value4, \
MC_CMD_ ## _name5, _value5)
#define MCDI_POPULATE_DWORD_6(_buf, _field, _name1, _value1, \
_name2, _value2, _name3, _value3, \
_name4, _value4, _name5, _value5, \
_name6, _value6) \
EFX_POPULATE_DWORD_6(*_MCDI_DWORD(_buf, _field), \
MC_CMD_ ## _name1, _value1, \
MC_CMD_ ## _name2, _value2, \
MC_CMD_ ## _name3, _value3, \
MC_CMD_ ## _name4, _value4, \
MC_CMD_ ## _name5, _value5, \
MC_CMD_ ## _name6, _value6)
#define MCDI_POPULATE_DWORD_7(_buf, _field, _name1, _value1, \
_name2, _value2, _name3, _value3, \
_name4, _value4, _name5, _value5, \
_name6, _value6, _name7, _value7) \
EFX_POPULATE_DWORD_7(*_MCDI_DWORD(_buf, _field), \
MC_CMD_ ## _name1, _value1, \
MC_CMD_ ## _name2, _value2, \
MC_CMD_ ## _name3, _value3, \
MC_CMD_ ## _name4, _value4, \
MC_CMD_ ## _name5, _value5, \
MC_CMD_ ## _name6, _value6, \
MC_CMD_ ## _name7, _value7)
#define MCDI_SET_QWORD(_buf, _field, _value) \
do { \
EFX_POPULATE_DWORD_1(_MCDI_DWORD(_buf, _field)[0], \
EFX_DWORD_0, (u32)(_value)); \
EFX_POPULATE_DWORD_1(_MCDI_DWORD(_buf, _field)[1], \
EFX_DWORD_0, (u64)(_value) >> 32); \
} while (0)
#define MCDI_QWORD(_buf, _field) \
(EFX_DWORD_FIELD(_MCDI_DWORD(_buf, _field)[0], EFX_DWORD_0) | \
(u64)EFX_DWORD_FIELD(_MCDI_DWORD(_buf, _field)[1], EFX_DWORD_0) << 32)
#define MCDI_FIELD(_ptr, _type, _field) \
EFX_EXTRACT_DWORD( \
*(efx_dword_t *) \
_MCDI_PTR(_ptr, MC_CMD_ ## _type ## _ ## _field ## _OFST & ~3),\
MC_CMD_ ## _type ## _ ## _field ## _LBN & 0x1f, \
(MC_CMD_ ## _type ## _ ## _field ## _LBN & 0x1f) + \
MC_CMD_ ## _type ## _ ## _field ## _WIDTH - 1)
#define _MCDI_ARRAY_PTR(_buf, _field, _index, _align) \
(_MCDI_PTR(_buf, _MCDI_CHECK_ALIGN(MC_CMD_ ## _field ## _OFST, _align))\
+ (_index) * _MCDI_CHECK_ALIGN(MC_CMD_ ## _field ## _LEN, _align))
#define MCDI_DECLARE_STRUCT_PTR(_name) \
efx_dword_t *_name
#define MCDI_ARRAY_STRUCT_PTR(_buf, _field, _index) \
((efx_dword_t *)_MCDI_ARRAY_PTR(_buf, _field, _index, 4))
#define MCDI_VAR_ARRAY_LEN(_len, _field) \
min_t(size_t, MC_CMD_ ## _field ## _MAXNUM, \
((_len) - MC_CMD_ ## _field ## _OFST) / MC_CMD_ ## _field ## _LEN)
#define MCDI_ARRAY_WORD(_buf, _field, _index) \
(BUILD_BUG_ON_ZERO(MC_CMD_ ## _field ## _LEN != 2) + \
le16_to_cpu(*(__force const __le16 *) \
_MCDI_ARRAY_PTR(_buf, _field, _index, 2)))
#define _MCDI_ARRAY_DWORD(_buf, _field, _index) \
(BUILD_BUG_ON_ZERO(MC_CMD_ ## _field ## _LEN != 4) + \
(efx_dword_t *)_MCDI_ARRAY_PTR(_buf, _field, _index, 4))
#define MCDI_SET_ARRAY_DWORD(_buf, _field, _index, _value) \
EFX_SET_DWORD_FIELD(*_MCDI_ARRAY_DWORD(_buf, _field, _index), \
EFX_DWORD_0, _value)
#define MCDI_ARRAY_DWORD(_buf, _field, _index) \
EFX_DWORD_FIELD(*_MCDI_ARRAY_DWORD(_buf, _field, _index), EFX_DWORD_0)
#define _MCDI_ARRAY_QWORD(_buf, _field, _index) \
(BUILD_BUG_ON_ZERO(MC_CMD_ ## _field ## _LEN != 8) + \
(efx_dword_t *)_MCDI_ARRAY_PTR(_buf, _field, _index, 4))
#define MCDI_SET_ARRAY_QWORD(_buf, _field, _index, _value) \
do { \
EFX_SET_DWORD_FIELD(_MCDI_ARRAY_QWORD(_buf, _field, _index)[0],\
EFX_DWORD_0, (u32)(_value)); \
EFX_SET_DWORD_FIELD(_MCDI_ARRAY_QWORD(_buf, _field, _index)[1],\
EFX_DWORD_0, (u64)(_value) >> 32); \
} while (0)
#define MCDI_ARRAY_FIELD(_buf, _field1, _type, _index, _field2) \
MCDI_FIELD(MCDI_ARRAY_STRUCT_PTR(_buf, _field1, _index), \
_type ## _TYPEDEF, _field2)
#define MCDI_EVENT_FIELD(_ev, _field) \
EFX_QWORD_FIELD(_ev, MCDI_EVENT_ ## _field)
#define MCDI_CAPABILITY(field) \
MC_CMD_GET_CAPABILITIES_V8_OUT_ ## field ## _LBN
#define MCDI_CAPABILITY_OFST(field) \
MC_CMD_GET_CAPABILITIES_V8_OUT_ ## field ## _OFST
#define efx_has_cap(efx, field) \
efx->type->check_caps(efx, \
MCDI_CAPABILITY(field), \
MCDI_CAPABILITY_OFST(field))
void efx_mcdi_print_fwver(struct efx_nic *efx, char *buf, size_t len);
int efx_mcdi_get_board_cfg(struct efx_nic *efx, u8 *mac_address,
u16 *fw_subtype_list, u32 *capabilities);
int efx_mcdi_log_ctrl(struct efx_nic *efx, bool evq, bool uart, u32 dest_evq);
int efx_mcdi_nvram_types(struct efx_nic *efx, u32 *nvram_types_out);
int efx_mcdi_nvram_info(struct efx_nic *efx, unsigned int type,
size_t *size_out, size_t *erase_size_out,
bool *protected_out);
int efx_new_mcdi_nvram_test_all(struct efx_nic *efx);
int efx_mcdi_nvram_test_all(struct efx_nic *efx);
int efx_mcdi_handle_assertion(struct efx_nic *efx);
int efx_mcdi_set_id_led(struct efx_nic *efx, enum efx_led_mode mode);
int efx_mcdi_wol_filter_set_magic(struct efx_nic *efx, const u8 *mac,
int *id_out);
int efx_mcdi_wol_filter_get_magic(struct efx_nic *efx, int *id_out);
int efx_mcdi_wol_filter_remove(struct efx_nic *efx, int id);
int efx_mcdi_wol_filter_reset(struct efx_nic *efx);
int efx_mcdi_flush_rxqs(struct efx_nic *efx);
void efx_mcdi_process_link_change(struct efx_nic *efx, efx_qword_t *ev);
void efx_mcdi_mac_start_stats(struct efx_nic *efx);
void efx_mcdi_mac_stop_stats(struct efx_nic *efx);
void efx_mcdi_mac_pull_stats(struct efx_nic *efx);
enum reset_type efx_mcdi_map_reset_reason(enum reset_type reason);
int efx_mcdi_reset(struct efx_nic *efx, enum reset_type method);
int efx_mcdi_set_workaround(struct efx_nic *efx, u32 type, bool enabled,
unsigned int *flags);
int efx_mcdi_get_workarounds(struct efx_nic *efx, unsigned int *impl_out,
unsigned int *enabled_out);
#ifdef CONFIG_SFC_MCDI_MON
int efx_mcdi_mon_probe(struct efx_nic *efx);
void efx_mcdi_mon_remove(struct efx_nic *efx);
#else
static inline int efx_mcdi_mon_probe(struct efx_nic *efx) { return 0; }
static inline void efx_mcdi_mon_remove(struct efx_nic *efx) {}
#endif
#ifdef CONFIG_SFC_MTD
int efx_mcdi_mtd_read(struct mtd_info *mtd, loff_t start, size_t len,
size_t *retlen, u8 *buffer);
int efx_mcdi_mtd_erase(struct mtd_info *mtd, loff_t start, size_t len);
int efx_mcdi_mtd_write(struct mtd_info *mtd, loff_t start, size_t len,
size_t *retlen, const u8 *buffer);
int efx_mcdi_mtd_sync(struct mtd_info *mtd);
void efx_mcdi_mtd_rename(struct efx_mtd_partition *part);
#endif
#endif /* EFX_MCDI_H */
|
