Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 1 | /**************************************************************************** |
| 2 | * Driver for Solarflare Solarstorm network controllers and boards |
Ben Hutchings | 04300d2 | 2008-12-12 21:48:09 -0800 | [diff] [blame] | 3 | * Copyright 2007-2008 Solarflare Communications Inc. |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 as published |
| 7 | * by the Free Software Foundation, incorporated herein by reference. |
| 8 | */ |
| 9 | |
| 10 | #include "net_driver.h" |
| 11 | #include "phy.h" |
| 12 | #include "boards.h" |
| 13 | #include "efx.h" |
Ben Hutchings | 3e133c4 | 2008-11-04 20:34:56 +0000 | [diff] [blame] | 14 | #include "workarounds.h" |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 15 | |
| 16 | /* Macros for unpacking the board revision */ |
| 17 | /* The revision info is in host byte order. */ |
| 18 | #define BOARD_TYPE(_rev) (_rev >> 8) |
| 19 | #define BOARD_MAJOR(_rev) ((_rev >> 4) & 0xf) |
| 20 | #define BOARD_MINOR(_rev) (_rev & 0xf) |
| 21 | |
| 22 | /* Blink support. If the PHY has no auto-blink mode so we hang it off a timer */ |
| 23 | #define BLINK_INTERVAL (HZ/2) |
| 24 | |
| 25 | static void blink_led_timer(unsigned long context) |
| 26 | { |
| 27 | struct efx_nic *efx = (struct efx_nic *)context; |
| 28 | struct efx_blinker *bl = &efx->board_info.blinker; |
Ben Hutchings | 8129d21 | 2009-02-27 13:08:03 +0000 | [diff] [blame^] | 29 | efx->board_info.set_id_led(efx, bl->state); |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 30 | bl->state = !bl->state; |
Ben Hutchings | 4cc58bd | 2008-05-16 21:13:57 +0100 | [diff] [blame] | 31 | if (bl->resubmit) |
| 32 | mod_timer(&bl->timer, jiffies + BLINK_INTERVAL); |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 33 | } |
| 34 | |
Ben Hutchings | dc8cfa5 | 2008-09-01 12:46:50 +0100 | [diff] [blame] | 35 | static void board_blink(struct efx_nic *efx, bool blink) |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 36 | { |
| 37 | struct efx_blinker *blinker = &efx->board_info.blinker; |
| 38 | |
| 39 | /* The rtnl mutex serialises all ethtool ioctls, so |
| 40 | * nothing special needs doing here. */ |
| 41 | if (blink) { |
Ben Hutchings | dc8cfa5 | 2008-09-01 12:46:50 +0100 | [diff] [blame] | 42 | blinker->resubmit = true; |
| 43 | blinker->state = false; |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 44 | setup_timer(&blinker->timer, blink_led_timer, |
| 45 | (unsigned long)efx); |
Ben Hutchings | 4cc58bd | 2008-05-16 21:13:57 +0100 | [diff] [blame] | 46 | mod_timer(&blinker->timer, jiffies + BLINK_INTERVAL); |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 47 | } else { |
Ben Hutchings | dc8cfa5 | 2008-09-01 12:46:50 +0100 | [diff] [blame] | 48 | blinker->resubmit = false; |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 49 | if (blinker->timer.function) |
| 50 | del_timer_sync(&blinker->timer); |
Ben Hutchings | 8129d21 | 2009-02-27 13:08:03 +0000 | [diff] [blame^] | 51 | efx->board_info.init_leds(efx); |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 52 | } |
| 53 | } |
| 54 | |
| 55 | /***************************************************************************** |
Ben Hutchings | 3e133c4 | 2008-11-04 20:34:56 +0000 | [diff] [blame] | 56 | * Support for LM87 sensor chip used on several boards |
| 57 | */ |
| 58 | #define LM87_REG_ALARMS1 0x41 |
| 59 | #define LM87_REG_ALARMS2 0x42 |
| 60 | #define LM87_IN_LIMITS(nr, _min, _max) \ |
| 61 | 0x2B + (nr) * 2, _max, 0x2C + (nr) * 2, _min |
| 62 | #define LM87_AIN_LIMITS(nr, _min, _max) \ |
| 63 | 0x3B + (nr), _max, 0x1A + (nr), _min |
| 64 | #define LM87_TEMP_INT_LIMITS(_min, _max) \ |
| 65 | 0x39, _max, 0x3A, _min |
| 66 | #define LM87_TEMP_EXT1_LIMITS(_min, _max) \ |
| 67 | 0x37, _max, 0x38, _min |
| 68 | |
| 69 | #define LM87_ALARM_TEMP_INT 0x10 |
| 70 | #define LM87_ALARM_TEMP_EXT1 0x20 |
| 71 | |
| 72 | #if defined(CONFIG_SENSORS_LM87) || defined(CONFIG_SENSORS_LM87_MODULE) |
| 73 | |
| 74 | static int efx_init_lm87(struct efx_nic *efx, struct i2c_board_info *info, |
| 75 | const u8 *reg_values) |
| 76 | { |
| 77 | struct i2c_client *client = i2c_new_device(&efx->i2c_adap, info); |
| 78 | int rc; |
| 79 | |
| 80 | if (!client) |
| 81 | return -EIO; |
| 82 | |
| 83 | while (*reg_values) { |
| 84 | u8 reg = *reg_values++; |
| 85 | u8 value = *reg_values++; |
| 86 | rc = i2c_smbus_write_byte_data(client, reg, value); |
| 87 | if (rc) |
| 88 | goto err; |
| 89 | } |
| 90 | |
| 91 | efx->board_info.hwmon_client = client; |
| 92 | return 0; |
| 93 | |
| 94 | err: |
| 95 | i2c_unregister_device(client); |
| 96 | return rc; |
| 97 | } |
| 98 | |
| 99 | static void efx_fini_lm87(struct efx_nic *efx) |
| 100 | { |
| 101 | i2c_unregister_device(efx->board_info.hwmon_client); |
| 102 | } |
| 103 | |
| 104 | static int efx_check_lm87(struct efx_nic *efx, unsigned mask) |
| 105 | { |
| 106 | struct i2c_client *client = efx->board_info.hwmon_client; |
| 107 | s32 alarms1, alarms2; |
| 108 | |
| 109 | /* If link is up then do not monitor temperature */ |
| 110 | if (EFX_WORKAROUND_7884(efx) && efx->link_up) |
| 111 | return 0; |
| 112 | |
| 113 | alarms1 = i2c_smbus_read_byte_data(client, LM87_REG_ALARMS1); |
| 114 | alarms2 = i2c_smbus_read_byte_data(client, LM87_REG_ALARMS2); |
| 115 | if (alarms1 < 0) |
| 116 | return alarms1; |
| 117 | if (alarms2 < 0) |
| 118 | return alarms2; |
| 119 | alarms1 &= mask; |
| 120 | alarms2 &= mask >> 8; |
| 121 | if (alarms1 || alarms2) { |
| 122 | EFX_ERR(efx, |
| 123 | "LM87 detected a hardware failure (status %02x:%02x)" |
| 124 | "%s%s\n", |
| 125 | alarms1, alarms2, |
| 126 | (alarms1 & LM87_ALARM_TEMP_INT) ? " INTERNAL" : "", |
| 127 | (alarms1 & LM87_ALARM_TEMP_EXT1) ? " EXTERNAL" : ""); |
| 128 | return -ERANGE; |
| 129 | } |
| 130 | |
| 131 | return 0; |
| 132 | } |
| 133 | |
| 134 | #else /* !CONFIG_SENSORS_LM87 */ |
| 135 | |
| 136 | static inline int |
| 137 | efx_init_lm87(struct efx_nic *efx, struct i2c_board_info *info, |
| 138 | const u8 *reg_values) |
| 139 | { |
| 140 | return 0; |
| 141 | } |
| 142 | static inline void efx_fini_lm87(struct efx_nic *efx) |
| 143 | { |
| 144 | } |
| 145 | static inline int efx_check_lm87(struct efx_nic *efx, unsigned mask) |
| 146 | { |
| 147 | return 0; |
| 148 | } |
| 149 | |
| 150 | #endif /* CONFIG_SENSORS_LM87 */ |
| 151 | |
| 152 | /***************************************************************************** |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 153 | * Support for the SFE4002 |
| 154 | * |
| 155 | */ |
Ben Hutchings | 3e133c4 | 2008-11-04 20:34:56 +0000 | [diff] [blame] | 156 | static u8 sfe4002_lm87_channel = 0x03; /* use AIN not FAN inputs */ |
| 157 | |
| 158 | static const u8 sfe4002_lm87_regs[] = { |
| 159 | LM87_IN_LIMITS(0, 0x83, 0x91), /* 2.5V: 1.8V +/- 5% */ |
| 160 | LM87_IN_LIMITS(1, 0x51, 0x5a), /* Vccp1: 1.2V +/- 5% */ |
| 161 | LM87_IN_LIMITS(2, 0xb6, 0xca), /* 3.3V: 3.3V +/- 5% */ |
| 162 | LM87_IN_LIMITS(3, 0xb0, 0xc9), /* 5V: 4.6-5.2V */ |
| 163 | LM87_IN_LIMITS(4, 0xb0, 0xe0), /* 12V: 11-14V */ |
| 164 | LM87_IN_LIMITS(5, 0x44, 0x4b), /* Vccp2: 1.0V +/- 5% */ |
| 165 | LM87_AIN_LIMITS(0, 0xa0, 0xb2), /* AIN1: 1.66V +/- 5% */ |
| 166 | LM87_AIN_LIMITS(1, 0x91, 0xa1), /* AIN2: 1.5V +/- 5% */ |
| 167 | LM87_TEMP_INT_LIMITS(10, 60), /* board */ |
| 168 | LM87_TEMP_EXT1_LIMITS(10, 70), /* Falcon */ |
| 169 | 0 |
| 170 | }; |
| 171 | |
| 172 | static struct i2c_board_info sfe4002_hwmon_info = { |
| 173 | I2C_BOARD_INFO("lm87", 0x2e), |
| 174 | .platform_data = &sfe4002_lm87_channel, |
| 175 | .irq = -1, |
| 176 | }; |
| 177 | |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 178 | /****************************************************************************/ |
| 179 | /* LED allocations. Note that on rev A0 boards the schematic and the reality |
| 180 | * differ: red and green are swapped. Below is the fixed (A1) layout (there |
| 181 | * are only 3 A0 boards in existence, so no real reason to make this |
| 182 | * conditional). |
| 183 | */ |
| 184 | #define SFE4002_FAULT_LED (2) /* Red */ |
| 185 | #define SFE4002_RX_LED (0) /* Green */ |
| 186 | #define SFE4002_TX_LED (1) /* Amber */ |
| 187 | |
Ben Hutchings | 8129d21 | 2009-02-27 13:08:03 +0000 | [diff] [blame^] | 188 | static void sfe4002_init_leds(struct efx_nic *efx) |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 189 | { |
| 190 | /* Set the TX and RX LEDs to reflect status and activity, and the |
| 191 | * fault LED off */ |
| 192 | xfp_set_led(efx, SFE4002_TX_LED, |
| 193 | QUAKE_LED_TXLINK | QUAKE_LED_LINK_ACTSTAT); |
| 194 | xfp_set_led(efx, SFE4002_RX_LED, |
| 195 | QUAKE_LED_RXLINK | QUAKE_LED_LINK_ACTSTAT); |
| 196 | xfp_set_led(efx, SFE4002_FAULT_LED, QUAKE_LED_OFF); |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 197 | } |
| 198 | |
Ben Hutchings | 8129d21 | 2009-02-27 13:08:03 +0000 | [diff] [blame^] | 199 | static void sfe4002_set_id_led(struct efx_nic *efx, bool state) |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 200 | { |
| 201 | xfp_set_led(efx, SFE4002_FAULT_LED, state ? QUAKE_LED_ON : |
| 202 | QUAKE_LED_OFF); |
| 203 | } |
| 204 | |
Ben Hutchings | 3e133c4 | 2008-11-04 20:34:56 +0000 | [diff] [blame] | 205 | static int sfe4002_check_hw(struct efx_nic *efx) |
| 206 | { |
| 207 | /* A0 board rev. 4002s report a temperature fault the whole time |
| 208 | * (bad sensor) so we mask it out. */ |
| 209 | unsigned alarm_mask = |
| 210 | (efx->board_info.major == 0 && efx->board_info.minor == 0) ? |
| 211 | ~LM87_ALARM_TEMP_EXT1 : ~0; |
| 212 | |
| 213 | return efx_check_lm87(efx, alarm_mask); |
| 214 | } |
| 215 | |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 216 | static int sfe4002_init(struct efx_nic *efx) |
| 217 | { |
Ben Hutchings | 3e133c4 | 2008-11-04 20:34:56 +0000 | [diff] [blame] | 218 | int rc = efx_init_lm87(efx, &sfe4002_hwmon_info, sfe4002_lm87_regs); |
| 219 | if (rc) |
| 220 | return rc; |
| 221 | efx->board_info.monitor = sfe4002_check_hw; |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 222 | efx->board_info.init_leds = sfe4002_init_leds; |
Ben Hutchings | 8129d21 | 2009-02-27 13:08:03 +0000 | [diff] [blame^] | 223 | efx->board_info.set_id_led = sfe4002_set_id_led; |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 224 | efx->board_info.blink = board_blink; |
Ben Hutchings | 3e133c4 | 2008-11-04 20:34:56 +0000 | [diff] [blame] | 225 | efx->board_info.fini = efx_fini_lm87; |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 226 | return 0; |
| 227 | } |
| 228 | |
| 229 | /* This will get expanded as board-specific details get moved out of the |
| 230 | * PHY drivers. */ |
| 231 | struct efx_board_data { |
Ben Hutchings | 04300d2 | 2008-12-12 21:48:09 -0800 | [diff] [blame] | 232 | enum efx_board_type type; |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 233 | const char *ref_model; |
| 234 | const char *gen_type; |
| 235 | int (*init) (struct efx_nic *nic); |
| 236 | }; |
| 237 | |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 238 | |
| 239 | static struct efx_board_data board_data[] = { |
Ben Hutchings | 04300d2 | 2008-12-12 21:48:09 -0800 | [diff] [blame] | 240 | { EFX_BOARD_SFE4001, "SFE4001", "10GBASE-T adapter", sfe4001_init }, |
| 241 | { EFX_BOARD_SFE4002, "SFE4002", "XFP adapter", sfe4002_init }, |
Ben Hutchings | 6f158d5 | 2008-12-12 22:00:49 -0800 | [diff] [blame] | 242 | { EFX_BOARD_SFN4111T, "SFN4111T", "100/1000/10GBASE-T adapter", |
| 243 | sfn4111t_init }, |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 244 | }; |
| 245 | |
Ben Hutchings | 04300d2 | 2008-12-12 21:48:09 -0800 | [diff] [blame] | 246 | void efx_set_board_info(struct efx_nic *efx, u16 revision_info) |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 247 | { |
Ben Hutchings | 04300d2 | 2008-12-12 21:48:09 -0800 | [diff] [blame] | 248 | struct efx_board_data *data = NULL; |
| 249 | int i; |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 250 | |
Ben Hutchings | 04300d2 | 2008-12-12 21:48:09 -0800 | [diff] [blame] | 251 | efx->board_info.type = BOARD_TYPE(revision_info); |
| 252 | efx->board_info.major = BOARD_MAJOR(revision_info); |
| 253 | efx->board_info.minor = BOARD_MINOR(revision_info); |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 254 | |
Ben Hutchings | 04300d2 | 2008-12-12 21:48:09 -0800 | [diff] [blame] | 255 | for (i = 0; i < ARRAY_SIZE(board_data); i++) |
| 256 | if (board_data[i].type == efx->board_info.type) |
| 257 | data = &board_data[i]; |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 258 | |
Ben Hutchings | 04300d2 | 2008-12-12 21:48:09 -0800 | [diff] [blame] | 259 | if (data) { |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 260 | EFX_INFO(efx, "board is %s rev %c%d\n", |
| 261 | (efx->pci_dev->subsystem_vendor == EFX_VENDID_SFC) |
| 262 | ? data->ref_model : data->gen_type, |
| 263 | 'A' + efx->board_info.major, efx->board_info.minor); |
Ben Hutchings | 04300d2 | 2008-12-12 21:48:09 -0800 | [diff] [blame] | 264 | efx->board_info.init = data->init; |
| 265 | } else { |
| 266 | EFX_ERR(efx, "unknown board type %d\n", efx->board_info.type); |
| 267 | } |
Ben Hutchings | 8ceee66 | 2008-04-27 12:55:59 +0100 | [diff] [blame] | 268 | } |