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
|
/****************************************************************************
* Driver for Solarflare Solarstorm network controllers and boards
* Copyright 2007 Solarflare Communications Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation, incorporated herein by reference.
*/
#include "net_driver.h"
#include "phy.h"
#include "boards.h"
#include "efx.h"
#include "workarounds.h"
/* Macros for unpacking the board revision */
/* The revision info is in host byte order. */
#define BOARD_TYPE(_rev) (_rev >> 8)
#define BOARD_MAJOR(_rev) ((_rev >> 4) & 0xf)
#define BOARD_MINOR(_rev) (_rev & 0xf)
/* Blink support. If the PHY has no auto-blink mode so we hang it off a timer */
#define BLINK_INTERVAL (HZ/2)
static void blink_led_timer(unsigned long context)
{
struct efx_nic *efx = (struct efx_nic *)context;
struct efx_blinker *bl = &efx->board_info.blinker;
efx->board_info.set_fault_led(efx, bl->state);
bl->state = !bl->state;
if (bl->resubmit)
mod_timer(&bl->timer, jiffies + BLINK_INTERVAL);
}
static void board_blink(struct efx_nic *efx, bool blink)
{
struct efx_blinker *blinker = &efx->board_info.blinker;
/* The rtnl mutex serialises all ethtool ioctls, so
* nothing special needs doing here. */
if (blink) {
blinker->resubmit = true;
blinker->state = false;
setup_timer(&blinker->timer, blink_led_timer,
(unsigned long)efx);
mod_timer(&blinker->timer, jiffies + BLINK_INTERVAL);
} else {
blinker->resubmit = false;
if (blinker->timer.function)
del_timer_sync(&blinker->timer);
efx->board_info.set_fault_led(efx, false);
}
}
/*****************************************************************************
* Support for LM87 sensor chip used on several boards
*/
#define LM87_REG_ALARMS1 0x41
#define LM87_REG_ALARMS2 0x42
#define LM87_IN_LIMITS(nr, _min, _max) \
0x2B + (nr) * 2, _max, 0x2C + (nr) * 2, _min
#define LM87_AIN_LIMITS(nr, _min, _max) \
0x3B + (nr), _max, 0x1A + (nr), _min
#define LM87_TEMP_INT_LIMITS(_min, _max) \
0x39, _max, 0x3A, _min
#define LM87_TEMP_EXT1_LIMITS(_min, _max) \
0x37, _max, 0x38, _min
#define LM87_ALARM_TEMP_INT 0x10
#define LM87_ALARM_TEMP_EXT1 0x20
#if defined(CONFIG_SENSORS_LM87) || defined(CONFIG_SENSORS_LM87_MODULE)
static int efx_init_lm87(struct efx_nic *efx, struct i2c_board_info *info,
const u8 *reg_values)
{
struct i2c_client *client = i2c_new_device(&efx->i2c_adap, info);
int rc;
if (!client)
return -EIO;
while (*reg_values) {
u8 reg = *reg_values++;
u8 value = *reg_values++;
rc = i2c_smbus_write_byte_data(client, reg, value);
if (rc)
goto err;
}
efx->board_info.hwmon_client = client;
return 0;
err:
i2c_unregister_device(client);
return rc;
}
static void efx_fini_lm87(struct efx_nic *efx)
{
i2c_unregister_device(efx->board_info.hwmon_client);
}
static int efx_check_lm87(struct efx_nic *efx, unsigned mask)
{
struct i2c_client *client = efx->board_info.hwmon_client;
s32 alarms1, alarms2;
/* If link is up then do not monitor temperature */
if (EFX_WORKAROUND_7884(efx) && efx->link_up)
return 0;
alarms1 = i2c_smbus_read_byte_data(client, LM87_REG_ALARMS1);
alarms2 = i2c_smbus_read_byte_data(client, LM87_REG_ALARMS2);
if (alarms1 < 0)
return alarms1;
if (alarms2 < 0)
return alarms2;
alarms1 &= mask;
alarms2 &= mask >> 8;
if (alarms1 || alarms2) {
EFX_ERR(efx,
"LM87 detected a hardware failure (status %02x:%02x)"
"%s%s\n",
alarms1, alarms2,
(alarms1 & LM87_ALARM_TEMP_INT) ? " INTERNAL" : "",
(alarms1 & LM87_ALARM_TEMP_EXT1) ? " EXTERNAL" : "");
return -ERANGE;
}
return 0;
}
#else /* !CONFIG_SENSORS_LM87 */
static inline int
efx_init_lm87(struct efx_nic *efx, struct i2c_board_info *info,
const u8 *reg_values)
{
return 0;
}
static inline void efx_fini_lm87(struct efx_nic *efx)
{
}
static inline int efx_check_lm87(struct efx_nic *efx, unsigned mask)
{
return 0;
}
#endif /* CONFIG_SENSORS_LM87 */
/*****************************************************************************
* Support for the SFE4002
*
*/
static u8 sfe4002_lm87_channel = 0x03; /* use AIN not FAN inputs */
static const u8 sfe4002_lm87_regs[] = {
LM87_IN_LIMITS(0, 0x83, 0x91), /* 2.5V: 1.8V +/- 5% */
LM87_IN_LIMITS(1, 0x51, 0x5a), /* Vccp1: 1.2V +/- 5% */
LM87_IN_LIMITS(2, 0xb6, 0xca), /* 3.3V: 3.3V +/- 5% */
LM87_IN_LIMITS(3, 0xb0, 0xc9), /* 5V: 4.6-5.2V */
LM87_IN_LIMITS(4, 0xb0, 0xe0), /* 12V: 11-14V */
LM87_IN_LIMITS(5, 0x44, 0x4b), /* Vccp2: 1.0V +/- 5% */
LM87_AIN_LIMITS(0, 0xa0, 0xb2), /* AIN1: 1.66V +/- 5% */
LM87_AIN_LIMITS(1, 0x91, 0xa1), /* AIN2: 1.5V +/- 5% */
LM87_TEMP_INT_LIMITS(10, 60), /* board */
LM87_TEMP_EXT1_LIMITS(10, 70), /* Falcon */
0
};
static struct i2c_board_info sfe4002_hwmon_info = {
I2C_BOARD_INFO("lm87", 0x2e),
.platform_data = &sfe4002_lm87_channel,
.irq = -1,
};
/****************************************************************************/
/* LED allocations. Note that on rev A0 boards the schematic and the reality
* differ: red and green are swapped. Below is the fixed (A1) layout (there
* are only 3 A0 boards in existence, so no real reason to make this
* conditional).
*/
#define SFE4002_FAULT_LED (2) /* Red */
#define SFE4002_RX_LED (0) /* Green */
#define SFE4002_TX_LED (1) /* Amber */
static int sfe4002_init_leds(struct efx_nic *efx)
{
/* Set the TX and RX LEDs to reflect status and activity, and the
* fault LED off */
xfp_set_led(efx, SFE4002_TX_LED,
QUAKE_LED_TXLINK | QUAKE_LED_LINK_ACTSTAT);
xfp_set_led(efx, SFE4002_RX_LED,
QUAKE_LED_RXLINK | QUAKE_LED_LINK_ACTSTAT);
xfp_set_led(efx, SFE4002_FAULT_LED, QUAKE_LED_OFF);
efx->board_info.blinker.led_num = SFE4002_FAULT_LED;
return 0;
}
static void sfe4002_fault_led(struct efx_nic *efx, bool state)
{
xfp_set_led(efx, SFE4002_FAULT_LED, state ? QUAKE_LED_ON :
QUAKE_LED_OFF);
}
static int sfe4002_check_hw(struct efx_nic *efx)
{
/* A0 board rev. 4002s report a temperature fault the whole time
* (bad sensor) so we mask it out. */
unsigned alarm_mask =
(efx->board_info.major == 0 && efx->board_info.minor == 0) ?
~LM87_ALARM_TEMP_EXT1 : ~0;
return efx_check_lm87(efx, alarm_mask);
}
static int sfe4002_init(struct efx_nic *efx)
{
int rc = efx_init_lm87(efx, &sfe4002_hwmon_info, sfe4002_lm87_regs);
if (rc)
return rc;
efx->board_info.monitor = sfe4002_check_hw;
efx->board_info.init_leds = sfe4002_init_leds;
efx->board_info.set_fault_led = sfe4002_fault_led;
efx->board_info.blink = board_blink;
efx->board_info.fini = efx_fini_lm87;
return 0;
}
/* This will get expanded as board-specific details get moved out of the
* PHY drivers. */
struct efx_board_data {
const char *ref_model;
const char *gen_type;
int (*init) (struct efx_nic *nic);
};
static int dummy_init(struct efx_nic *nic)
{
return 0;
}
static struct efx_board_data board_data[] = {
[EFX_BOARD_INVALID] =
{NULL, NULL, dummy_init},
[EFX_BOARD_SFE4001] =
{"SFE4001", "10GBASE-T adapter", sfe4001_init},
[EFX_BOARD_SFE4002] =
{"SFE4002", "XFP adapter", sfe4002_init},
};
int efx_set_board_info(struct efx_nic *efx, u16 revision_info)
{
int rc = 0;
struct efx_board_data *data;
if (BOARD_TYPE(revision_info) >= EFX_BOARD_MAX) {
EFX_ERR(efx, "squashing unknown board type %d\n",
BOARD_TYPE(revision_info));
revision_info = 0;
}
if (BOARD_TYPE(revision_info) == 0) {
efx->board_info.major = 0;
efx->board_info.minor = 0;
/* For early boards that don't have revision info. there is
* only 1 board for each PHY type, so we can work it out, with
* the exception of the PHY-less boards. */
switch (efx->phy_type) {
case PHY_TYPE_10XPRESS:
efx->board_info.type = EFX_BOARD_SFE4001;
break;
case PHY_TYPE_XFP:
efx->board_info.type = EFX_BOARD_SFE4002;
break;
default:
efx->board_info.type = 0;
break;
}
} else {
efx->board_info.type = BOARD_TYPE(revision_info);
efx->board_info.major = BOARD_MAJOR(revision_info);
efx->board_info.minor = BOARD_MINOR(revision_info);
}
data = &board_data[efx->board_info.type];
/* Report the board model number or generic type for recognisable
* boards. */
if (efx->board_info.type != 0)
EFX_INFO(efx, "board is %s rev %c%d\n",
(efx->pci_dev->subsystem_vendor == EFX_VENDID_SFC)
? data->ref_model : data->gen_type,
'A' + efx->board_info.major, efx->board_info.minor);
efx->board_info.init = data->init;
return rc;
}
|
