Lines Matching full:sfp
19 #include "sfp.h"
170 * on board (for a copper SFP) time to initialise.
196 /* SFP module presence detection is poor: the three MOD DEF signals are
210 /* SFP modules appear to always have their PHY configured for bus address
212 * RollBall SFPs access phy via SFP Enhanced Digital Diagnostic Interface
219 * at a time. Some SFP modules and also some Linux I2C drivers do not like
229 struct sfp { struct
240 unsigned int (*get_state)(struct sfp *); argument
241 void (*set_state)(struct sfp *, unsigned int); argument
242 int (*read)(struct sfp *, bool, u8, void *, size_t); argument
243 int (*write)(struct sfp *, bool, u8, void *, size_t); argument
318 /* SFP GPON module Ubiquiti U-Fiber Instant has in its EEPROM stored in sfp_module_supported()
319 * phys id SFF instead of SFP. Therefore mark this module explicitly in sfp_module_supported()
339 { .compatible = "sff,sfp", .data = &sfp_data, },
344 static void sfp_fixup_long_startup(struct sfp *sfp) in sfp_fixup_long_startup() argument
346 sfp->module_t_start_up = T_START_UP_BAD_GPON; in sfp_fixup_long_startup()
349 static void sfp_fixup_ignore_los(struct sfp *sfp) in sfp_fixup_ignore_los() argument
352 sfp->state_ignore_mask |= SFP_F_LOS; in sfp_fixup_ignore_los()
354 sfp->id.ext.options &= ~cpu_to_be16(SFP_OPTIONS_LOS_INVERTED | in sfp_fixup_ignore_los()
358 static void sfp_fixup_ignore_tx_fault(struct sfp *sfp) in sfp_fixup_ignore_tx_fault() argument
360 sfp->state_ignore_mask |= SFP_F_TX_FAULT; in sfp_fixup_ignore_tx_fault()
363 static void sfp_fixup_nokia(struct sfp *sfp) in sfp_fixup_nokia() argument
365 sfp_fixup_long_startup(sfp); in sfp_fixup_nokia()
366 sfp_fixup_ignore_los(sfp); in sfp_fixup_nokia()
370 static void sfp_fixup_10gbaset_30m(struct sfp *sfp) in sfp_fixup_10gbaset_30m() argument
372 sfp->id.base.connector = SFF8024_CONNECTOR_RJ45; in sfp_fixup_10gbaset_30m()
373 sfp->id.base.extended_cc = SFF8024_ECC_10GBASE_T_SR; in sfp_fixup_10gbaset_30m()
376 static void sfp_fixup_rollball(struct sfp *sfp) in sfp_fixup_rollball() argument
378 sfp->mdio_protocol = MDIO_I2C_ROLLBALL; in sfp_fixup_rollball()
385 sfp->phy_t_retry = msecs_to_jiffies(1000); in sfp_fixup_rollball()
388 static void sfp_fixup_rollball_wait4s(struct sfp *sfp) in sfp_fixup_rollball_wait4s() argument
390 sfp_fixup_rollball(sfp); in sfp_fixup_rollball_wait4s()
396 sfp->module_t_wait = msecs_to_jiffies(4000); in sfp_fixup_rollball_wait4s()
399 static void sfp_fixup_fs_10gt(struct sfp *sfp) in sfp_fixup_fs_10gt() argument
401 sfp_fixup_10gbaset_30m(sfp); in sfp_fixup_fs_10gt()
402 sfp_fixup_rollball_wait4s(sfp); in sfp_fixup_fs_10gt()
405 static void sfp_fixup_halny_gsfp(struct sfp *sfp) in sfp_fixup_halny_gsfp() argument
411 sfp->state_hw_mask &= ~(SFP_F_TX_FAULT | SFP_F_LOS); in sfp_fixup_halny_gsfp()
414 static void sfp_fixup_rollball_cc(struct sfp *sfp) in sfp_fixup_rollball_cc() argument
416 sfp_fixup_rollball(sfp); in sfp_fixup_rollball_cc()
421 sfp->id.base.extended_cc = SFF8024_ECC_10GBASE_T_SFI; in sfp_fixup_rollball_cc()
443 /* Copper 2.5G SFP */ in sfp_quirk_oem_2_5g()
477 // Fiberstore SFP-10G-T doesn't identify as copper, uses the Rollball
480 SFP_QUIRK_F("FS", "SFP-10G-T", sfp_fixup_fs_10gt),
482 // Fiberstore SFP-2.5G-T and SFP-10GM-T uses Rollball protocol to talk
484 SFP_QUIRK_F("FS", "SFP-2.5G-T", sfp_fixup_rollball_wait4s),
485 SFP_QUIRK_F("FS", "SFP-10GM-T", sfp_fixup_rollball_wait4s),
514 // OEM SFP-GE-T is a 1000Base-T module with broken TX_FAULT indicator
515 SFP_QUIRK_F("OEM", "SFP-GE-T", sfp_fixup_ignore_tx_fault),
517 SFP_QUIRK_F("OEM", "SFP-10G-T", sfp_fixup_rollball_cc),
518 SFP_QUIRK_M("OEM", "SFP-2.5G-T", sfp_quirk_oem_2_5g),
519 SFP_QUIRK_M("OEM", "SFP-2.5G-BX10-D", sfp_quirk_2500basex),
520 SFP_QUIRK_M("OEM", "SFP-2.5G-BX10-U", sfp_quirk_2500basex),
570 static unsigned int sfp_gpio_get_state(struct sfp *sfp) in sfp_gpio_get_state() argument
575 if (gpio_flags[i] != GPIOD_IN || !sfp->gpio[i]) in sfp_gpio_get_state()
578 v = gpiod_get_value_cansleep(sfp->gpio[i]); in sfp_gpio_get_state()
586 static unsigned int sff_gpio_get_state(struct sfp *sfp) in sff_gpio_get_state() argument
588 return sfp_gpio_get_state(sfp) | SFP_F_PRESENT; in sff_gpio_get_state()
591 static void sfp_gpio_set_state(struct sfp *sfp, unsigned int state) in sfp_gpio_set_state() argument
597 drive = sfp->state_hw_drive; in sfp_gpio_set_state()
602 if (sfp->gpio[GPIO_TX_DISABLE]) { in sfp_gpio_set_state()
604 gpiod_direction_output(sfp->gpio[GPIO_TX_DISABLE], in sfp_gpio_set_state()
607 gpiod_direction_input(sfp->gpio[GPIO_TX_DISABLE]); in sfp_gpio_set_state()
610 if (sfp->gpio[GPIO_RS0]) { in sfp_gpio_set_state()
612 gpiod_direction_output(sfp->gpio[GPIO_RS0], in sfp_gpio_set_state()
615 gpiod_direction_input(sfp->gpio[GPIO_RS0]); in sfp_gpio_set_state()
618 if (sfp->gpio[GPIO_RS1]) { in sfp_gpio_set_state()
620 gpiod_direction_output(sfp->gpio[GPIO_RS1], in sfp_gpio_set_state()
623 gpiod_direction_input(sfp->gpio[GPIO_RS1]); in sfp_gpio_set_state()
627 static int sfp_i2c_read(struct sfp *sfp, bool a2, u8 dev_addr, void *buf, in sfp_i2c_read() argument
632 size_t block_size = sfp->i2c_block_size; in sfp_i2c_read()
652 ret = i2c_transfer(sfp->i2c, msgs, ARRAY_SIZE(msgs)); in sfp_i2c_read()
667 static int sfp_i2c_write(struct sfp *sfp, bool a2, u8 dev_addr, void *buf, in sfp_i2c_write() argument
684 ret = i2c_transfer(sfp->i2c, msgs, ARRAY_SIZE(msgs)); in sfp_i2c_write()
694 static int sfp_i2c_configure(struct sfp *sfp, struct i2c_adapter *i2c) in sfp_i2c_configure() argument
699 sfp->i2c = i2c; in sfp_i2c_configure()
700 sfp->read = sfp_i2c_read; in sfp_i2c_configure()
701 sfp->write = sfp_i2c_write; in sfp_i2c_configure()
706 static int sfp_i2c_mdiobus_create(struct sfp *sfp) in sfp_i2c_mdiobus_create() argument
711 i2c_mii = mdio_i2c_alloc(sfp->dev, sfp->i2c, sfp->mdio_protocol); in sfp_i2c_mdiobus_create()
715 i2c_mii->name = "SFP I2C Bus"; in sfp_i2c_mdiobus_create()
724 sfp->i2c_mii = i2c_mii; in sfp_i2c_mdiobus_create()
729 static void sfp_i2c_mdiobus_destroy(struct sfp *sfp) in sfp_i2c_mdiobus_destroy() argument
731 mdiobus_unregister(sfp->i2c_mii); in sfp_i2c_mdiobus_destroy()
732 sfp->i2c_mii = NULL; in sfp_i2c_mdiobus_destroy()
736 static int sfp_read(struct sfp *sfp, bool a2, u8 addr, void *buf, size_t len) in sfp_read() argument
738 return sfp->read(sfp, a2, addr, buf, len); in sfp_read()
741 static int sfp_write(struct sfp *sfp, bool a2, u8 addr, void *buf, size_t len) in sfp_write() argument
743 return sfp->write(sfp, a2, addr, buf, len); in sfp_write()
746 static int sfp_modify_u8(struct sfp *sfp, bool a2, u8 addr, u8 mask, u8 val) in sfp_modify_u8() argument
751 ret = sfp_read(sfp, a2, addr, &old, sizeof(old)); in sfp_modify_u8()
759 return sfp_write(sfp, a2, addr, &v, sizeof(v)); in sfp_modify_u8()
762 static unsigned int sfp_soft_get_state(struct sfp *sfp) in sfp_soft_get_state() argument
768 ret = sfp_read(sfp, true, SFP_STATUS, &status, sizeof(status)); in sfp_soft_get_state()
775 dev_err_ratelimited(sfp->dev, in sfp_soft_get_state()
776 "failed to read SFP soft status: %pe\n", in sfp_soft_get_state()
779 state = sfp->state; in sfp_soft_get_state()
782 return state & sfp->state_soft_mask; in sfp_soft_get_state()
785 static void sfp_soft_set_state(struct sfp *sfp, unsigned int state, in sfp_soft_set_state() argument
802 sfp_modify_u8(sfp, true, SFP_STATUS, mask, val); in sfp_soft_set_state()
811 sfp_modify_u8(sfp, true, SFP_EXT_STATUS, mask, val); in sfp_soft_set_state()
814 static void sfp_soft_start_poll(struct sfp *sfp) in sfp_soft_start_poll() argument
816 const struct sfp_eeprom_id *id = &sfp->id; in sfp_soft_start_poll()
826 mask |= sfp->rs_state_mask; in sfp_soft_start_poll()
828 mutex_lock(&sfp->st_mutex); in sfp_soft_start_poll()
830 sfp->state_soft_mask = ~sfp->state_hw_mask & ~sfp->state_ignore_mask & in sfp_soft_start_poll()
833 if (sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT) && in sfp_soft_start_poll()
834 !sfp->need_poll) in sfp_soft_start_poll()
835 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_soft_start_poll()
836 mutex_unlock(&sfp->st_mutex); in sfp_soft_start_poll()
839 static void sfp_soft_stop_poll(struct sfp *sfp) in sfp_soft_stop_poll() argument
841 mutex_lock(&sfp->st_mutex); in sfp_soft_stop_poll()
842 sfp->state_soft_mask = 0; in sfp_soft_stop_poll()
843 mutex_unlock(&sfp->st_mutex); in sfp_soft_stop_poll()
849 static unsigned int sfp_get_state(struct sfp *sfp) in sfp_get_state() argument
851 unsigned int soft = sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT); in sfp_get_state()
854 state = sfp->get_state(sfp) & sfp->state_hw_mask; in sfp_get_state()
856 state |= sfp_soft_get_state(sfp); in sfp_get_state()
864 static void sfp_set_state(struct sfp *sfp, unsigned int state) in sfp_set_state() argument
868 sfp->set_state(sfp, state); in sfp_set_state()
870 soft = sfp->state_soft_mask & SFP_F_OUTPUTS; in sfp_set_state()
872 sfp_soft_set_state(sfp, state, soft); in sfp_set_state()
875 static void sfp_mod_state(struct sfp *sfp, unsigned int mask, unsigned int set) in sfp_mod_state() argument
877 mutex_lock(&sfp->st_mutex); in sfp_mod_state()
878 sfp->state = (sfp->state & ~mask) | set; in sfp_mod_state()
879 sfp_set_state(sfp, sfp->state); in sfp_mod_state()
880 mutex_unlock(&sfp->st_mutex); in sfp_mod_state()
899 const struct sfp *sfp = data; in sfp_hwmon_is_visible() local
912 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
931 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
950 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
966 if (sfp->id.ext.diagmon & SFP_DIAGMON_EXT_CAL && in sfp_hwmon_is_visible()
978 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
992 static int sfp_hwmon_read_sensor(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_sensor() argument
997 err = sfp_read(sfp, true, reg, &val, sizeof(val)); in sfp_hwmon_read_sensor()
1011 static void sfp_hwmon_calibrate(struct sfp *sfp, unsigned int slope, int offset, in sfp_hwmon_calibrate() argument
1014 if (sfp->id.ext.diagmon & SFP_DIAGMON_EXT_CAL) in sfp_hwmon_calibrate()
1018 static void sfp_hwmon_calibrate_temp(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_temp() argument
1020 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_t_slope), in sfp_hwmon_calibrate_temp()
1021 be16_to_cpu(sfp->diag.cal_t_offset), value); in sfp_hwmon_calibrate_temp()
1029 static void sfp_hwmon_calibrate_vcc(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_vcc() argument
1031 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_v_slope), in sfp_hwmon_calibrate_vcc()
1032 be16_to_cpu(sfp->diag.cal_v_offset), value); in sfp_hwmon_calibrate_vcc()
1037 static void sfp_hwmon_calibrate_bias(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_bias() argument
1039 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_txi_slope), in sfp_hwmon_calibrate_bias()
1040 be16_to_cpu(sfp->diag.cal_txi_offset), value); in sfp_hwmon_calibrate_bias()
1045 static void sfp_hwmon_calibrate_tx_power(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_tx_power() argument
1047 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_txpwr_slope), in sfp_hwmon_calibrate_tx_power()
1048 be16_to_cpu(sfp->diag.cal_txpwr_offset), value); in sfp_hwmon_calibrate_tx_power()
1053 static int sfp_hwmon_read_temp(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_temp() argument
1057 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_temp()
1061 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_read_temp()
1066 static int sfp_hwmon_read_vcc(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_vcc() argument
1070 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_vcc()
1074 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_read_vcc()
1079 static int sfp_hwmon_read_bias(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_bias() argument
1083 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_bias()
1087 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_read_bias()
1092 static int sfp_hwmon_read_tx_power(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_tx_power() argument
1096 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_tx_power()
1100 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_read_tx_power()
1105 static int sfp_hwmon_read_rx_power(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_rx_power() argument
1109 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_rx_power()
1118 static int sfp_hwmon_temp(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_temp() argument
1125 return sfp_hwmon_read_temp(sfp, SFP_TEMP, value); in sfp_hwmon_temp()
1128 *value = be16_to_cpu(sfp->diag.temp_low_alarm); in sfp_hwmon_temp()
1129 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
1133 *value = be16_to_cpu(sfp->diag.temp_low_warn); in sfp_hwmon_temp()
1134 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
1137 *value = be16_to_cpu(sfp->diag.temp_high_warn); in sfp_hwmon_temp()
1138 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
1142 *value = be16_to_cpu(sfp->diag.temp_high_alarm); in sfp_hwmon_temp()
1143 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
1147 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_temp()
1155 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_temp()
1163 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_temp()
1171 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_temp()
1184 static int sfp_hwmon_vcc(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_vcc() argument
1191 return sfp_hwmon_read_vcc(sfp, SFP_VCC, value); in sfp_hwmon_vcc()
1194 *value = be16_to_cpu(sfp->diag.volt_low_alarm); in sfp_hwmon_vcc()
1195 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
1199 *value = be16_to_cpu(sfp->diag.volt_low_warn); in sfp_hwmon_vcc()
1200 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
1204 *value = be16_to_cpu(sfp->diag.volt_high_warn); in sfp_hwmon_vcc()
1205 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
1209 *value = be16_to_cpu(sfp->diag.volt_high_alarm); in sfp_hwmon_vcc()
1210 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
1214 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_vcc()
1222 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_vcc()
1230 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_vcc()
1238 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_vcc()
1251 static int sfp_hwmon_bias(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_bias() argument
1258 return sfp_hwmon_read_bias(sfp, SFP_TX_BIAS, value); in sfp_hwmon_bias()
1261 *value = be16_to_cpu(sfp->diag.bias_low_alarm); in sfp_hwmon_bias()
1262 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
1266 *value = be16_to_cpu(sfp->diag.bias_low_warn); in sfp_hwmon_bias()
1267 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
1271 *value = be16_to_cpu(sfp->diag.bias_high_warn); in sfp_hwmon_bias()
1272 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
1276 *value = be16_to_cpu(sfp->diag.bias_high_alarm); in sfp_hwmon_bias()
1277 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
1281 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_bias()
1289 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_bias()
1297 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_bias()
1305 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_bias()
1318 static int sfp_hwmon_tx_power(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_tx_power() argument
1325 return sfp_hwmon_read_tx_power(sfp, SFP_TX_POWER, value); in sfp_hwmon_tx_power()
1328 *value = be16_to_cpu(sfp->diag.txpwr_low_alarm); in sfp_hwmon_tx_power()
1329 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1333 *value = be16_to_cpu(sfp->diag.txpwr_low_warn); in sfp_hwmon_tx_power()
1334 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1338 *value = be16_to_cpu(sfp->diag.txpwr_high_warn); in sfp_hwmon_tx_power()
1339 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1343 *value = be16_to_cpu(sfp->diag.txpwr_high_alarm); in sfp_hwmon_tx_power()
1344 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1348 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1356 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1364 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1372 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1385 static int sfp_hwmon_rx_power(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_rx_power() argument
1392 return sfp_hwmon_read_rx_power(sfp, SFP_RX_POWER, value); in sfp_hwmon_rx_power()
1395 *value = be16_to_cpu(sfp->diag.rxpwr_low_alarm); in sfp_hwmon_rx_power()
1400 *value = be16_to_cpu(sfp->diag.rxpwr_low_warn); in sfp_hwmon_rx_power()
1405 *value = be16_to_cpu(sfp->diag.rxpwr_high_warn); in sfp_hwmon_rx_power()
1410 *value = be16_to_cpu(sfp->diag.rxpwr_high_alarm); in sfp_hwmon_rx_power()
1415 err = sfp_read(sfp, true, SFP_ALARM1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1423 err = sfp_read(sfp, true, SFP_WARN1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1431 err = sfp_read(sfp, true, SFP_WARN1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1439 err = sfp_read(sfp, true, SFP_ALARM1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1455 struct sfp *sfp = dev_get_drvdata(dev); in sfp_hwmon_read() local
1459 return sfp_hwmon_temp(sfp, attr, value); in sfp_hwmon_read()
1461 return sfp_hwmon_vcc(sfp, attr, value); in sfp_hwmon_read()
1463 return sfp_hwmon_bias(sfp, attr, value); in sfp_hwmon_read()
1467 return sfp_hwmon_tx_power(sfp, attr, value); in sfp_hwmon_read()
1469 return sfp_hwmon_rx_power(sfp, attr, value); in sfp_hwmon_read()
1586 struct sfp *sfp = container_of(work, struct sfp, hwmon_probe.work); in sfp_hwmon_probe() local
1595 if (sfp->i2c_block_size < 2) { in sfp_hwmon_probe()
1596 dev_info(sfp->dev, in sfp_hwmon_probe()
1598 dev_info(sfp->dev, in sfp_hwmon_probe()
1603 err = sfp_read(sfp, true, 0, &sfp->diag, sizeof(sfp->diag)); in sfp_hwmon_probe()
1605 if (sfp->hwmon_tries--) { in sfp_hwmon_probe()
1606 mod_delayed_work(system_wq, &sfp->hwmon_probe, in sfp_hwmon_probe()
1609 dev_warn(sfp->dev, "hwmon probe failed: %pe\n", in sfp_hwmon_probe()
1615 sfp->hwmon_name = hwmon_sanitize_name(dev_name(sfp->dev)); in sfp_hwmon_probe()
1616 if (IS_ERR(sfp->hwmon_name)) { in sfp_hwmon_probe()
1617 dev_err(sfp->dev, "out of memory for hwmon name\n"); in sfp_hwmon_probe()
1621 sfp->hwmon_dev = hwmon_device_register_with_info(sfp->dev, in sfp_hwmon_probe()
1622 sfp->hwmon_name, sfp, in sfp_hwmon_probe()
1625 if (IS_ERR(sfp->hwmon_dev)) in sfp_hwmon_probe()
1626 dev_err(sfp->dev, "failed to register hwmon device: %ld\n", in sfp_hwmon_probe()
1627 PTR_ERR(sfp->hwmon_dev)); in sfp_hwmon_probe()
1630 static int sfp_hwmon_insert(struct sfp *sfp) in sfp_hwmon_insert() argument
1632 if (sfp->have_a2 && sfp->id.ext.diagmon & SFP_DIAGMON_DDM) { in sfp_hwmon_insert()
1633 mod_delayed_work(system_wq, &sfp->hwmon_probe, 1); in sfp_hwmon_insert()
1634 sfp->hwmon_tries = R_PROBE_RETRY_SLOW; in sfp_hwmon_insert()
1640 static void sfp_hwmon_remove(struct sfp *sfp) in sfp_hwmon_remove() argument
1642 cancel_delayed_work_sync(&sfp->hwmon_probe); in sfp_hwmon_remove()
1643 if (!IS_ERR_OR_NULL(sfp->hwmon_dev)) { in sfp_hwmon_remove()
1644 hwmon_device_unregister(sfp->hwmon_dev); in sfp_hwmon_remove()
1645 sfp->hwmon_dev = NULL; in sfp_hwmon_remove()
1646 kfree(sfp->hwmon_name); in sfp_hwmon_remove()
1650 static int sfp_hwmon_init(struct sfp *sfp) in sfp_hwmon_init() argument
1652 INIT_DELAYED_WORK(&sfp->hwmon_probe, sfp_hwmon_probe); in sfp_hwmon_init()
1657 static void sfp_hwmon_exit(struct sfp *sfp) in sfp_hwmon_exit() argument
1659 cancel_delayed_work_sync(&sfp->hwmon_probe); in sfp_hwmon_exit()
1662 static int sfp_hwmon_insert(struct sfp *sfp) in sfp_hwmon_insert() argument
1667 static void sfp_hwmon_remove(struct sfp *sfp) in sfp_hwmon_remove() argument
1671 static int sfp_hwmon_init(struct sfp *sfp) in sfp_hwmon_init() argument
1676 static void sfp_hwmon_exit(struct sfp *sfp) in sfp_hwmon_exit() argument
1682 static void sfp_module_tx_disable(struct sfp *sfp) in sfp_module_tx_disable() argument
1684 dev_dbg(sfp->dev, "tx disable %u -> %u\n", in sfp_module_tx_disable()
1685 sfp->state & SFP_F_TX_DISABLE ? 1 : 0, 1); in sfp_module_tx_disable()
1686 sfp_mod_state(sfp, SFP_F_TX_DISABLE, SFP_F_TX_DISABLE); in sfp_module_tx_disable()
1689 static void sfp_module_tx_enable(struct sfp *sfp) in sfp_module_tx_enable() argument
1691 dev_dbg(sfp->dev, "tx disable %u -> %u\n", in sfp_module_tx_enable()
1692 sfp->state & SFP_F_TX_DISABLE ? 1 : 0, 0); in sfp_module_tx_enable()
1693 sfp_mod_state(sfp, SFP_F_TX_DISABLE, 0); in sfp_module_tx_enable()
1699 struct sfp *sfp = s->private; in sfp_debug_state_show() local
1702 mod_state_to_str(sfp->sm_mod_state)); in sfp_debug_state_show()
1704 R_PROBE_RETRY_INIT - sfp->sm_mod_tries_init, in sfp_debug_state_show()
1705 R_PROBE_RETRY_SLOW - sfp->sm_mod_tries); in sfp_debug_state_show()
1707 dev_state_to_str(sfp->sm_dev_state)); in sfp_debug_state_show()
1709 sm_state_to_str(sfp->sm_state)); in sfp_debug_state_show()
1711 sfp->sm_fault_retries); in sfp_debug_state_show()
1713 sfp->sm_phy_retries); in sfp_debug_state_show()
1714 seq_printf(s, "Signalling rate: %u kBd\n", sfp->rate_kbd); in sfp_debug_state_show()
1716 sfp->rs_threshold_kbd); in sfp_debug_state_show()
1717 seq_printf(s, "moddef0: %d\n", !!(sfp->state & SFP_F_PRESENT)); in sfp_debug_state_show()
1718 seq_printf(s, "rx_los: %d\n", !!(sfp->state & SFP_F_LOS)); in sfp_debug_state_show()
1719 seq_printf(s, "tx_fault: %d\n", !!(sfp->state & SFP_F_TX_FAULT)); in sfp_debug_state_show()
1720 seq_printf(s, "tx_disable: %d\n", !!(sfp->state & SFP_F_TX_DISABLE)); in sfp_debug_state_show()
1721 seq_printf(s, "rs0: %d\n", !!(sfp->state & SFP_F_RS0)); in sfp_debug_state_show()
1722 seq_printf(s, "rs1: %d\n", !!(sfp->state & SFP_F_RS1)); in sfp_debug_state_show()
1727 static void sfp_debugfs_init(struct sfp *sfp) in sfp_debugfs_init() argument
1729 sfp->debugfs_dir = debugfs_create_dir(dev_name(sfp->dev), NULL); in sfp_debugfs_init()
1731 debugfs_create_file("state", 0600, sfp->debugfs_dir, sfp, in sfp_debugfs_init()
1735 static void sfp_debugfs_exit(struct sfp *sfp) in sfp_debugfs_exit() argument
1737 debugfs_remove_recursive(sfp->debugfs_dir); in sfp_debugfs_exit()
1740 static void sfp_debugfs_init(struct sfp *sfp) in sfp_debugfs_init() argument
1744 static void sfp_debugfs_exit(struct sfp *sfp) in sfp_debugfs_exit() argument
1749 static void sfp_module_tx_fault_reset(struct sfp *sfp) in sfp_module_tx_fault_reset() argument
1753 mutex_lock(&sfp->st_mutex); in sfp_module_tx_fault_reset()
1754 state = sfp->state; in sfp_module_tx_fault_reset()
1756 sfp_set_state(sfp, state | SFP_F_TX_DISABLE); in sfp_module_tx_fault_reset()
1760 sfp_set_state(sfp, state); in sfp_module_tx_fault_reset()
1762 mutex_unlock(&sfp->st_mutex); in sfp_module_tx_fault_reset()
1765 /* SFP state machine */
1766 static void sfp_sm_set_timer(struct sfp *sfp, unsigned int timeout) in sfp_sm_set_timer() argument
1769 mod_delayed_work(system_power_efficient_wq, &sfp->timeout, in sfp_sm_set_timer()
1772 cancel_delayed_work(&sfp->timeout); in sfp_sm_set_timer()
1775 static void sfp_sm_next(struct sfp *sfp, unsigned int state, in sfp_sm_next() argument
1778 sfp->sm_state = state; in sfp_sm_next()
1779 sfp_sm_set_timer(sfp, timeout); in sfp_sm_next()
1782 static void sfp_sm_mod_next(struct sfp *sfp, unsigned int state, in sfp_sm_mod_next() argument
1785 sfp->sm_mod_state = state; in sfp_sm_mod_next()
1786 sfp_sm_set_timer(sfp, timeout); in sfp_sm_mod_next()
1789 static void sfp_sm_phy_detach(struct sfp *sfp) in sfp_sm_phy_detach() argument
1791 sfp_remove_phy(sfp->sfp_bus); in sfp_sm_phy_detach()
1792 phy_device_remove(sfp->mod_phy); in sfp_sm_phy_detach()
1793 phy_device_free(sfp->mod_phy); in sfp_sm_phy_detach()
1794 sfp->mod_phy = NULL; in sfp_sm_phy_detach()
1797 static int sfp_sm_probe_phy(struct sfp *sfp, int addr, bool is_c45) in sfp_sm_probe_phy() argument
1802 phy = get_phy_device(sfp->i2c_mii, addr, is_c45); in sfp_sm_probe_phy()
1806 dev_err(sfp->dev, "mdiobus scan returned %pe\n", phy); in sfp_sm_probe_phy()
1810 /* Mark this PHY as being on a SFP module */ in sfp_sm_probe_phy()
1816 dev_err(sfp->dev, "phy_device_register failed: %pe\n", in sfp_sm_probe_phy()
1821 err = sfp_add_phy(sfp->sfp_bus, phy); in sfp_sm_probe_phy()
1825 dev_err(sfp->dev, "sfp_add_phy failed: %pe\n", ERR_PTR(err)); in sfp_sm_probe_phy()
1829 sfp->mod_phy = phy; in sfp_sm_probe_phy()
1834 static void sfp_sm_link_up(struct sfp *sfp) in sfp_sm_link_up() argument
1836 sfp_link_up(sfp->sfp_bus); in sfp_sm_link_up()
1837 sfp_sm_next(sfp, SFP_S_LINK_UP, 0); in sfp_sm_link_up()
1840 static void sfp_sm_link_down(struct sfp *sfp) in sfp_sm_link_down() argument
1842 sfp_link_down(sfp->sfp_bus); in sfp_sm_link_down()
1845 static void sfp_sm_link_check_los(struct sfp *sfp) in sfp_sm_link_check_los() argument
1849 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_sm_link_check_los()
1857 los = !(sfp->state & SFP_F_LOS); in sfp_sm_link_check_los()
1859 los = !!(sfp->state & SFP_F_LOS); in sfp_sm_link_check_los()
1862 sfp_sm_next(sfp, SFP_S_WAIT_LOS, 0); in sfp_sm_link_check_los()
1864 sfp_sm_link_up(sfp); in sfp_sm_link_check_los()
1867 static bool sfp_los_event_active(struct sfp *sfp, unsigned int event) in sfp_los_event_active() argument
1871 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_los_event_active()
1877 static bool sfp_los_event_inactive(struct sfp *sfp, unsigned int event) in sfp_los_event_inactive() argument
1881 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_los_event_inactive()
1887 static void sfp_sm_fault(struct sfp *sfp, unsigned int next_state, bool warn) in sfp_sm_fault() argument
1889 if (sfp->sm_fault_retries && !--sfp->sm_fault_retries) { in sfp_sm_fault()
1890 dev_err(sfp->dev, in sfp_sm_fault()
1892 sfp_sm_next(sfp, SFP_S_TX_DISABLE, 0); in sfp_sm_fault()
1895 dev_err(sfp->dev, "module transmit fault indicated\n"); in sfp_sm_fault()
1897 sfp_sm_next(sfp, next_state, T_FAULT_RECOVER); in sfp_sm_fault()
1901 static int sfp_sm_add_mdio_bus(struct sfp *sfp) in sfp_sm_add_mdio_bus() argument
1903 if (sfp->mdio_protocol != MDIO_I2C_NONE) in sfp_sm_add_mdio_bus()
1904 return sfp_i2c_mdiobus_create(sfp); in sfp_sm_add_mdio_bus()
1909 /* Probe a SFP for a PHY device if the module supports copper - the PHY
1913 * Clause 22 copper SFP modules normally operate in Cisco SGMII mode with
1917 * Clause 45 copper SFP+ modules (10G) appear to switch their interface
1920 static int sfp_sm_probe_for_phy(struct sfp *sfp) in sfp_sm_probe_for_phy() argument
1924 switch (sfp->mdio_protocol) { in sfp_sm_probe_for_phy()
1929 err = sfp_sm_probe_phy(sfp, SFP_PHY_ADDR, false); in sfp_sm_probe_for_phy()
1933 err = sfp_sm_probe_phy(sfp, SFP_PHY_ADDR, true); in sfp_sm_probe_for_phy()
1937 err = sfp_sm_probe_phy(sfp, SFP_PHY_ADDR_ROLLBALL, true); in sfp_sm_probe_for_phy()
1944 static int sfp_module_parse_power(struct sfp *sfp) in sfp_module_parse_power() argument
1949 if (sfp->id.ext.sff8472_compliance >= SFP_SFF8472_COMPLIANCE_REV10_2 && in sfp_module_parse_power()
1950 sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_POWER_DECL)) in sfp_module_parse_power()
1953 if (sfp->id.ext.sff8472_compliance >= SFP_SFF8472_COMPLIANCE_REV11_4 && in sfp_module_parse_power()
1954 sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_HIGH_POWER_LEVEL)) in sfp_module_parse_power()
1959 sfp->module_power_mW = power_mW; in sfp_module_parse_power()
1963 supports_a2 = sfp->id.ext.sff8472_compliance != in sfp_module_parse_power()
1965 sfp->id.ext.diagmon & SFP_DIAGMON_DDM; in sfp_module_parse_power()
1967 if (power_mW > sfp->max_power_mW) { in sfp_module_parse_power()
1974 dev_err(sfp->dev, in sfp_module_parse_power()
1979 dev_warn(sfp->dev, in sfp_module_parse_power()
1998 if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE) { in sfp_module_parse_power()
1999 dev_warn(sfp->dev, in sfp_module_parse_power()
2005 sfp->module_power_mW = power_mW; in sfp_module_parse_power()
2010 static int sfp_sm_mod_hpower(struct sfp *sfp, bool enable) in sfp_sm_mod_hpower() argument
2014 err = sfp_modify_u8(sfp, true, SFP_EXT_STATUS, in sfp_sm_mod_hpower()
2018 dev_err(sfp->dev, "failed to %sable high power: %pe\n", in sfp_sm_mod_hpower()
2024 dev_info(sfp->dev, "Module switched to %u.%uW power level\n", in sfp_sm_mod_hpower()
2025 sfp->module_power_mW / 1000, in sfp_sm_mod_hpower()
2026 (sfp->module_power_mW / 100) % 10); in sfp_sm_mod_hpower()
2031 static void sfp_module_parse_rate_select(struct sfp *sfp) in sfp_module_parse_rate_select() argument
2035 sfp->rs_threshold_kbd = 0; in sfp_module_parse_rate_select()
2036 sfp->rs_state_mask = 0; in sfp_module_parse_rate_select()
2038 if (!(sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_RATE_SELECT))) in sfp_module_parse_rate_select()
2048 sfp->rs_state_mask = SFP_F_RS0; in sfp_module_parse_rate_select()
2049 sfp->rs_threshold_kbd = 1594; in sfp_module_parse_rate_select()
2059 rate_id = sfp->id.base.rate_id; in sfp_module_parse_rate_select()
2068 if (sfp->id.ext.sff8472_compliance >= SFP_SFF8472_COMPLIANCE_REV10_2 && in sfp_module_parse_rate_select()
2069 sfp->id.ext.sff8472_compliance < SFP_SFF8472_COMPLIANCE_REV11_0 && in sfp_module_parse_rate_select()
2078 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_APP_SELECT_SFF8079)) { in sfp_module_parse_rate_select()
2084 sfp->rs_threshold_kbd = 2125 - 1; in sfp_module_parse_rate_select()
2085 sfp->rs_state_mask = SFP_F_RS0; in sfp_module_parse_rate_select()
2091 if (sfp->id.ext.sff8472_compliance <= SFP_SFF8472_COMPLIANCE_REV9_5) in sfp_module_parse_rate_select()
2099 sfp->rs_threshold_kbd = 4250; in sfp_module_parse_rate_select()
2100 sfp->rs_state_mask = SFP_F_RS0; in sfp_module_parse_rate_select()
2104 sfp->rs_threshold_kbd = 4250; in sfp_module_parse_rate_select()
2105 sfp->rs_state_mask = SFP_F_RS1; in sfp_module_parse_rate_select()
2109 sfp->rs_threshold_kbd = 4250; in sfp_module_parse_rate_select()
2110 sfp->rs_state_mask = SFP_F_RS0 | SFP_F_RS1; in sfp_module_parse_rate_select()
2114 sfp->rs_threshold_kbd = 9000; in sfp_module_parse_rate_select()
2115 sfp->rs_state_mask = SFP_F_RS0 | SFP_F_RS1; in sfp_module_parse_rate_select()
2131 static bool sfp_id_needs_byte_io(struct sfp *sfp, void *buf, size_t len) in sfp_id_needs_byte_io() argument
2133 size_t i, block_size = sfp->i2c_block_size; in sfp_id_needs_byte_io()
2146 static int sfp_cotsworks_fixup_check(struct sfp *sfp, struct sfp_eeprom_id *id) in sfp_cotsworks_fixup_check() argument
2154 dev_warn(sfp->dev, "Rewriting fiber module EEPROM with corrected values\n"); in sfp_cotsworks_fixup_check()
2158 err = sfp_write(sfp, false, SFP_PHYS_ID, &id->base, 3); in sfp_cotsworks_fixup_check()
2160 dev_err(sfp->dev, in sfp_cotsworks_fixup_check()
2171 err = sfp_write(sfp, false, SFP_CC_BASE, &check, 1); in sfp_cotsworks_fixup_check()
2173 dev_err(sfp->dev, in sfp_cotsworks_fixup_check()
2182 static int sfp_module_parse_sff8472(struct sfp *sfp) in sfp_module_parse_sff8472() argument
2185 if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE) in sfp_module_parse_sff8472()
2186 dev_warn(sfp->dev, in sfp_module_parse_sff8472()
2189 sfp->have_a2 = true; in sfp_module_parse_sff8472()
2194 static int sfp_sm_mod_probe(struct sfp *sfp, bool report) in sfp_sm_mod_probe() argument
2196 /* SFP module inserted - read I2C data */ in sfp_sm_mod_probe()
2204 sfp->i2c_block_size = SFP_EEPROM_BLOCK_SIZE; in sfp_sm_mod_probe()
2206 ret = sfp_read(sfp, false, 0, &id.base, sizeof(id.base)); in sfp_sm_mod_probe()
2209 dev_err(sfp->dev, "failed to read EEPROM: %pe\n", in sfp_sm_mod_probe()
2215 dev_err(sfp->dev, "EEPROM short read: %pe\n", ERR_PTR(ret)); in sfp_sm_mod_probe()
2219 /* Some SFP modules (e.g. Nokia 3FE46541AA) lock up if read from in sfp_sm_mod_probe()
2225 if (sfp_id_needs_byte_io(sfp, &id.base, sizeof(id.base))) { in sfp_sm_mod_probe()
2226 dev_info(sfp->dev, in sfp_sm_mod_probe()
2228 dev_info(sfp->dev, in sfp_sm_mod_probe()
2230 sfp->i2c_block_size = 1; in sfp_sm_mod_probe()
2232 ret = sfp_read(sfp, false, 0, &id.base, sizeof(id.base)); in sfp_sm_mod_probe()
2235 dev_err(sfp->dev, in sfp_sm_mod_probe()
2242 dev_err(sfp->dev, "EEPROM short read: %pe\n", in sfp_sm_mod_probe()
2260 ret = sfp_cotsworks_fixup_check(sfp, &id); in sfp_sm_mod_probe()
2269 dev_warn(sfp->dev, in sfp_sm_mod_probe()
2273 dev_err(sfp->dev, in sfp_sm_mod_probe()
2276 print_hex_dump(KERN_ERR, "sfp EE: ", DUMP_PREFIX_OFFSET, in sfp_sm_mod_probe()
2282 ret = sfp_read(sfp, false, SFP_CC_BASE + 1, &id.ext, sizeof(id.ext)); in sfp_sm_mod_probe()
2285 dev_err(sfp->dev, "failed to read EEPROM: %pe\n", in sfp_sm_mod_probe()
2291 dev_err(sfp->dev, "EEPROM short read: %pe\n", ERR_PTR(ret)); in sfp_sm_mod_probe()
2298 dev_warn(sfp->dev, in sfp_sm_mod_probe()
2302 dev_err(sfp->dev, in sfp_sm_mod_probe()
2305 print_hex_dump(KERN_ERR, "sfp EE: ", DUMP_PREFIX_OFFSET, in sfp_sm_mod_probe()
2311 sfp->id = id; in sfp_sm_mod_probe()
2313 dev_info(sfp->dev, "module %.*s %.*s rev %.*s sn %.*s dc %.*s\n", in sfp_sm_mod_probe()
2321 if (!sfp->type->module_supported(&id)) { in sfp_sm_mod_probe()
2322 dev_err(sfp->dev, in sfp_sm_mod_probe()
2324 sfp->id.base.phys_id, sfp->id.base.phys_ext_id); in sfp_sm_mod_probe()
2328 if (sfp->id.ext.sff8472_compliance != SFP_SFF8472_COMPLIANCE_NONE) { in sfp_sm_mod_probe()
2329 ret = sfp_module_parse_sff8472(sfp); in sfp_sm_mod_probe()
2335 ret = sfp_module_parse_power(sfp); in sfp_sm_mod_probe()
2339 sfp_module_parse_rate_select(sfp); in sfp_sm_mod_probe()
2342 if (sfp->gpio[GPIO_TX_DISABLE]) in sfp_sm_mod_probe()
2344 if (sfp->gpio[GPIO_TX_FAULT]) in sfp_sm_mod_probe()
2346 if (sfp->gpio[GPIO_LOS]) in sfp_sm_mod_probe()
2348 if (sfp->gpio[GPIO_RS0]) in sfp_sm_mod_probe()
2350 if (sfp->gpio[GPIO_RS1]) in sfp_sm_mod_probe()
2353 sfp->module_t_start_up = T_START_UP; in sfp_sm_mod_probe()
2354 sfp->module_t_wait = T_WAIT; in sfp_sm_mod_probe()
2355 sfp->phy_t_retry = T_PHY_RETRY; in sfp_sm_mod_probe()
2357 sfp->state_ignore_mask = 0; in sfp_sm_mod_probe()
2359 if (sfp->id.base.extended_cc == SFF8024_ECC_10GBASE_T_SFI || in sfp_sm_mod_probe()
2360 sfp->id.base.extended_cc == SFF8024_ECC_10GBASE_T_SR || in sfp_sm_mod_probe()
2361 sfp->id.base.extended_cc == SFF8024_ECC_5GBASE_T || in sfp_sm_mod_probe()
2362 sfp->id.base.extended_cc == SFF8024_ECC_2_5GBASE_T) in sfp_sm_mod_probe()
2363 sfp->mdio_protocol = MDIO_I2C_C45; in sfp_sm_mod_probe()
2364 else if (sfp->id.base.e1000_base_t) in sfp_sm_mod_probe()
2365 sfp->mdio_protocol = MDIO_I2C_MARVELL_C22; in sfp_sm_mod_probe()
2367 sfp->mdio_protocol = MDIO_I2C_NONE; in sfp_sm_mod_probe()
2369 sfp->quirk = sfp_lookup_quirk(&id); in sfp_sm_mod_probe()
2371 mutex_lock(&sfp->st_mutex); in sfp_sm_mod_probe()
2373 sfp->state_hw_mask = mask; in sfp_sm_mod_probe()
2376 sfp->state_hw_drive |= sfp->rs_state_mask; in sfp_sm_mod_probe()
2378 if (sfp->quirk && sfp->quirk->fixup) in sfp_sm_mod_probe()
2379 sfp->quirk->fixup(sfp); in sfp_sm_mod_probe()
2381 sfp->state_hw_mask &= ~sfp->state_ignore_mask; in sfp_sm_mod_probe()
2382 mutex_unlock(&sfp->st_mutex); in sfp_sm_mod_probe()
2387 static void sfp_sm_mod_remove(struct sfp *sfp) in sfp_sm_mod_remove() argument
2389 if (sfp->sm_mod_state > SFP_MOD_WAITDEV) in sfp_sm_mod_remove()
2390 sfp_module_remove(sfp->sfp_bus); in sfp_sm_mod_remove()
2392 sfp_hwmon_remove(sfp); in sfp_sm_mod_remove()
2394 memset(&sfp->id, 0, sizeof(sfp->id)); in sfp_sm_mod_remove()
2395 sfp->module_power_mW = 0; in sfp_sm_mod_remove()
2396 sfp->state_hw_drive = SFP_F_TX_DISABLE; in sfp_sm_mod_remove()
2397 sfp->have_a2 = false; in sfp_sm_mod_remove()
2399 dev_info(sfp->dev, "module removed\n"); in sfp_sm_mod_remove()
2403 static void sfp_sm_device(struct sfp *sfp, unsigned int event) in sfp_sm_device() argument
2405 switch (sfp->sm_dev_state) { in sfp_sm_device()
2408 sfp->sm_dev_state = SFP_DEV_DOWN; in sfp_sm_device()
2413 sfp->sm_dev_state = SFP_DEV_DETACHED; in sfp_sm_device()
2415 sfp->sm_dev_state = SFP_DEV_UP; in sfp_sm_device()
2420 sfp->sm_dev_state = SFP_DEV_DETACHED; in sfp_sm_device()
2422 sfp->sm_dev_state = SFP_DEV_DOWN; in sfp_sm_device()
2430 static void sfp_sm_module(struct sfp *sfp, unsigned int event) in sfp_sm_module() argument
2436 sfp_sm_mod_remove(sfp); in sfp_sm_module()
2437 sfp_sm_mod_next(sfp, SFP_MOD_EMPTY, 0); in sfp_sm_module()
2442 if (sfp->sm_dev_state < SFP_DEV_DOWN && in sfp_sm_module()
2443 sfp->sm_mod_state > SFP_MOD_WAITDEV) { in sfp_sm_module()
2444 if (sfp->module_power_mW > 1000 && in sfp_sm_module()
2445 sfp->sm_mod_state > SFP_MOD_HPOWER) in sfp_sm_module()
2446 sfp_sm_mod_hpower(sfp, false); in sfp_sm_module()
2447 sfp_sm_mod_next(sfp, SFP_MOD_WAITDEV, 0); in sfp_sm_module()
2451 switch (sfp->sm_mod_state) { in sfp_sm_module()
2454 sfp_sm_mod_next(sfp, SFP_MOD_PROBE, T_SERIAL); in sfp_sm_module()
2455 sfp->sm_mod_tries_init = R_PROBE_RETRY_INIT; in sfp_sm_module()
2456 sfp->sm_mod_tries = R_PROBE_RETRY_SLOW; in sfp_sm_module()
2465 err = sfp_sm_mod_probe(sfp, sfp->sm_mod_tries == 1); in sfp_sm_module()
2467 if (sfp->sm_mod_tries_init && in sfp_sm_module()
2468 --sfp->sm_mod_tries_init) { in sfp_sm_module()
2469 sfp_sm_set_timer(sfp, T_PROBE_RETRY_INIT); in sfp_sm_module()
2471 } else if (sfp->sm_mod_tries && --sfp->sm_mod_tries) { in sfp_sm_module()
2472 if (sfp->sm_mod_tries == R_PROBE_RETRY_SLOW - 1) in sfp_sm_module()
2473 dev_warn(sfp->dev, in sfp_sm_module()
2475 sfp_sm_set_timer(sfp, T_PROBE_RETRY_SLOW); in sfp_sm_module()
2480 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
2487 mod_delayed_work(system_wq, &sfp->poll, 1); in sfp_sm_module()
2489 err = sfp_hwmon_insert(sfp); in sfp_sm_module()
2491 dev_warn(sfp->dev, "hwmon probe failed: %pe\n", in sfp_sm_module()
2494 sfp_sm_mod_next(sfp, SFP_MOD_WAITDEV, 0); in sfp_sm_module()
2498 if (sfp->sm_dev_state < SFP_DEV_DOWN) in sfp_sm_module()
2502 err = sfp_module_insert(sfp->sfp_bus, &sfp->id, in sfp_sm_module()
2503 sfp->quirk); in sfp_sm_module()
2505 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
2510 if (sfp->module_power_mW <= 1000) in sfp_sm_module()
2513 sfp_sm_mod_next(sfp, SFP_MOD_HPOWER, 0); in sfp_sm_module()
2517 err = sfp_sm_mod_hpower(sfp, true); in sfp_sm_module()
2520 sfp_module_remove(sfp->sfp_bus); in sfp_sm_module()
2521 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
2523 sfp_sm_set_timer(sfp, T_PROBE_RETRY_INIT); in sfp_sm_module()
2528 sfp_sm_mod_next(sfp, SFP_MOD_WAITPWR, T_HPOWER_LEVEL); in sfp_sm_module()
2537 sfp_sm_mod_next(sfp, SFP_MOD_PRESENT, 0); in sfp_sm_module()
2546 static void sfp_sm_main(struct sfp *sfp, unsigned int event) in sfp_sm_main() argument
2552 if (sfp->sm_state != SFP_S_DOWN && in sfp_sm_main()
2553 (sfp->sm_mod_state != SFP_MOD_PRESENT || in sfp_sm_main()
2554 sfp->sm_dev_state != SFP_DEV_UP)) { in sfp_sm_main()
2555 if (sfp->sm_state == SFP_S_LINK_UP && in sfp_sm_main()
2556 sfp->sm_dev_state == SFP_DEV_UP) in sfp_sm_main()
2557 sfp_sm_link_down(sfp); in sfp_sm_main()
2558 if (sfp->sm_state > SFP_S_INIT) in sfp_sm_main()
2559 sfp_module_stop(sfp->sfp_bus); in sfp_sm_main()
2560 if (sfp->mod_phy) in sfp_sm_main()
2561 sfp_sm_phy_detach(sfp); in sfp_sm_main()
2562 if (sfp->i2c_mii) in sfp_sm_main()
2563 sfp_i2c_mdiobus_destroy(sfp); in sfp_sm_main()
2564 sfp_module_tx_disable(sfp); in sfp_sm_main()
2565 sfp_soft_stop_poll(sfp); in sfp_sm_main()
2566 sfp_sm_next(sfp, SFP_S_DOWN, 0); in sfp_sm_main()
2571 switch (sfp->sm_state) { in sfp_sm_main()
2573 if (sfp->sm_mod_state != SFP_MOD_PRESENT || in sfp_sm_main()
2574 sfp->sm_dev_state != SFP_DEV_UP) in sfp_sm_main()
2581 if (sfp->have_a2) in sfp_sm_main()
2582 sfp_soft_start_poll(sfp); in sfp_sm_main()
2584 sfp_module_tx_enable(sfp); in sfp_sm_main()
2587 sfp->sm_fault_retries = N_FAULT_INIT; in sfp_sm_main()
2594 sfp_sm_next(sfp, SFP_S_WAIT, sfp->module_t_wait); in sfp_sm_main()
2601 if (sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2607 timeout = sfp->module_t_start_up; in sfp_sm_main()
2608 if (timeout > sfp->module_t_wait) in sfp_sm_main()
2609 timeout -= sfp->module_t_wait; in sfp_sm_main()
2613 sfp_sm_next(sfp, SFP_S_INIT, timeout); in sfp_sm_main()
2623 if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2627 sfp_sm_fault(sfp, SFP_S_INIT_TX_FAULT, in sfp_sm_main()
2628 sfp->sm_fault_retries == N_FAULT_INIT); in sfp_sm_main()
2632 ret = sfp_sm_add_mdio_bus(sfp); in sfp_sm_main()
2634 sfp_sm_next(sfp, SFP_S_FAIL, 0); in sfp_sm_main()
2637 sfp->sm_phy_retries = R_PHY_RETRY; in sfp_sm_main()
2649 ret = sfp_sm_probe_for_phy(sfp); in sfp_sm_main()
2651 if (--sfp->sm_phy_retries) { in sfp_sm_main()
2652 sfp_sm_next(sfp, SFP_S_INIT_PHY, in sfp_sm_main()
2653 sfp->phy_t_retry); in sfp_sm_main()
2654 dev_dbg(sfp->dev, in sfp_sm_main()
2656 sfp->sm_phy_retries); in sfp_sm_main()
2659 dev_info(sfp->dev, "no PHY detected\n"); in sfp_sm_main()
2662 sfp_sm_next(sfp, SFP_S_FAIL, 0); in sfp_sm_main()
2665 if (sfp_module_start(sfp->sfp_bus)) { in sfp_sm_main()
2666 sfp_sm_next(sfp, SFP_S_FAIL, 0); in sfp_sm_main()
2669 sfp_sm_link_check_los(sfp); in sfp_sm_main()
2672 sfp->sm_fault_retries = N_FAULT; in sfp_sm_main()
2677 sfp_module_tx_fault_reset(sfp); in sfp_sm_main()
2678 sfp_sm_next(sfp, SFP_S_INIT, sfp->module_t_start_up); in sfp_sm_main()
2684 sfp_sm_fault(sfp, SFP_S_TX_FAULT, true); in sfp_sm_main()
2685 else if (sfp_los_event_inactive(sfp, event)) in sfp_sm_main()
2686 sfp_sm_link_up(sfp); in sfp_sm_main()
2691 sfp_sm_link_down(sfp); in sfp_sm_main()
2692 sfp_sm_fault(sfp, SFP_S_TX_FAULT, true); in sfp_sm_main()
2693 } else if (sfp_los_event_active(sfp, event)) { in sfp_sm_main()
2694 sfp_sm_link_down(sfp); in sfp_sm_main()
2695 sfp_sm_next(sfp, SFP_S_WAIT_LOS, 0); in sfp_sm_main()
2701 sfp_module_tx_fault_reset(sfp); in sfp_sm_main()
2702 sfp_sm_next(sfp, SFP_S_REINIT, sfp->module_t_start_up); in sfp_sm_main()
2707 if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2708 sfp_sm_fault(sfp, SFP_S_TX_FAULT, false); in sfp_sm_main()
2710 dev_info(sfp->dev, "module transmit fault recovered\n"); in sfp_sm_main()
2711 sfp_sm_link_check_los(sfp); in sfp_sm_main()
2720 static void __sfp_sm_event(struct sfp *sfp, unsigned int event) in __sfp_sm_event() argument
2722 dev_dbg(sfp->dev, "SM: enter %s:%s:%s event %s\n", in __sfp_sm_event()
2723 mod_state_to_str(sfp->sm_mod_state), in __sfp_sm_event()
2724 dev_state_to_str(sfp->sm_dev_state), in __sfp_sm_event()
2725 sm_state_to_str(sfp->sm_state), in __sfp_sm_event()
2728 sfp_sm_device(sfp, event); in __sfp_sm_event()
2729 sfp_sm_module(sfp, event); in __sfp_sm_event()
2730 sfp_sm_main(sfp, event); in __sfp_sm_event()
2732 dev_dbg(sfp->dev, "SM: exit %s:%s:%s\n", in __sfp_sm_event()
2733 mod_state_to_str(sfp->sm_mod_state), in __sfp_sm_event()
2734 dev_state_to_str(sfp->sm_dev_state), in __sfp_sm_event()
2735 sm_state_to_str(sfp->sm_state)); in __sfp_sm_event()
2738 static void sfp_sm_event(struct sfp *sfp, unsigned int event) in sfp_sm_event() argument
2740 mutex_lock(&sfp->sm_mutex); in sfp_sm_event()
2741 __sfp_sm_event(sfp, event); in sfp_sm_event()
2742 mutex_unlock(&sfp->sm_mutex); in sfp_sm_event()
2745 static void sfp_attach(struct sfp *sfp) in sfp_attach() argument
2747 sfp_sm_event(sfp, SFP_E_DEV_ATTACH); in sfp_attach()
2750 static void sfp_detach(struct sfp *sfp) in sfp_detach() argument
2752 sfp_sm_event(sfp, SFP_E_DEV_DETACH); in sfp_detach()
2755 static void sfp_start(struct sfp *sfp) in sfp_start() argument
2757 sfp_sm_event(sfp, SFP_E_DEV_UP); in sfp_start()
2760 static void sfp_stop(struct sfp *sfp) in sfp_stop() argument
2762 sfp_sm_event(sfp, SFP_E_DEV_DOWN); in sfp_stop()
2765 static void sfp_set_signal_rate(struct sfp *sfp, unsigned int rate_kbd) in sfp_set_signal_rate() argument
2769 sfp->rate_kbd = rate_kbd; in sfp_set_signal_rate()
2771 if (rate_kbd > sfp->rs_threshold_kbd) in sfp_set_signal_rate()
2772 set = sfp->rs_state_mask; in sfp_set_signal_rate()
2776 sfp_mod_state(sfp, SFP_F_RS0 | SFP_F_RS1, set); in sfp_set_signal_rate()
2779 static int sfp_module_info(struct sfp *sfp, struct ethtool_modinfo *modinfo) in sfp_module_info() argument
2783 if (sfp->id.ext.sff8472_compliance && in sfp_module_info()
2784 !(sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE)) { in sfp_module_info()
2794 static int sfp_module_eeprom(struct sfp *sfp, struct ethtool_eeprom *ee, in sfp_module_eeprom() argument
2800 if (!(sfp->state & SFP_F_PRESENT)) in sfp_module_eeprom()
2812 ret = sfp_read(sfp, false, first, data, len); in sfp_module_eeprom()
2824 ret = sfp_read(sfp, true, first, data, len); in sfp_module_eeprom()
2831 static int sfp_module_eeprom_by_page(struct sfp *sfp, in sfp_module_eeprom_by_page() argument
2835 if (!(sfp->state & SFP_F_PRESENT)) in sfp_module_eeprom_by_page()
2854 return sfp_read(sfp, page->i2c_address == 0x51, page->offset, in sfp_module_eeprom_by_page()
2871 struct sfp *sfp = container_of(work, struct sfp, timeout.work); in sfp_timeout() local
2874 sfp_sm_event(sfp, SFP_E_TIMEOUT); in sfp_timeout()
2878 static void sfp_check_state(struct sfp *sfp) in sfp_check_state() argument
2883 mutex_lock(&sfp->st_mutex); in sfp_check_state()
2884 state = sfp_get_state(sfp); in sfp_check_state()
2885 changed = state ^ sfp->state; in sfp_check_state()
2890 dev_dbg(sfp->dev, "%s %u -> %u\n", gpio_names[i], in sfp_check_state()
2891 !!(sfp->state & BIT(i)), !!(state & BIT(i))); in sfp_check_state()
2893 state |= sfp->state & SFP_F_OUTPUTS; in sfp_check_state()
2894 sfp->state = state; in sfp_check_state()
2895 mutex_unlock(&sfp->st_mutex); in sfp_check_state()
2897 mutex_lock(&sfp->sm_mutex); in sfp_check_state()
2899 __sfp_sm_event(sfp, state & SFP_F_PRESENT ? in sfp_check_state()
2903 __sfp_sm_event(sfp, state & SFP_F_TX_FAULT ? in sfp_check_state()
2907 __sfp_sm_event(sfp, state & SFP_F_LOS ? in sfp_check_state()
2909 mutex_unlock(&sfp->sm_mutex); in sfp_check_state()
2915 struct sfp *sfp = data; in sfp_irq() local
2917 sfp_check_state(sfp); in sfp_irq()
2924 struct sfp *sfp = container_of(work, struct sfp, poll.work); in sfp_poll() local
2926 sfp_check_state(sfp); in sfp_poll()
2930 if (sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT) || in sfp_poll()
2931 sfp->need_poll) in sfp_poll()
2932 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_poll()
2935 static struct sfp *sfp_alloc(struct device *dev) in sfp_alloc()
2937 struct sfp *sfp; in sfp_alloc() local
2939 sfp = kzalloc(sizeof(*sfp), GFP_KERNEL); in sfp_alloc()
2940 if (!sfp) in sfp_alloc()
2943 sfp->dev = dev; in sfp_alloc()
2944 sfp->i2c_block_size = SFP_EEPROM_BLOCK_SIZE; in sfp_alloc()
2946 mutex_init(&sfp->sm_mutex); in sfp_alloc()
2947 mutex_init(&sfp->st_mutex); in sfp_alloc()
2948 INIT_DELAYED_WORK(&sfp->poll, sfp_poll); in sfp_alloc()
2949 INIT_DELAYED_WORK(&sfp->timeout, sfp_timeout); in sfp_alloc()
2951 sfp_hwmon_init(sfp); in sfp_alloc()
2953 return sfp; in sfp_alloc()
2958 struct sfp *sfp = data; in sfp_cleanup() local
2960 sfp_hwmon_exit(sfp); in sfp_cleanup()
2962 cancel_delayed_work_sync(&sfp->poll); in sfp_cleanup()
2963 cancel_delayed_work_sync(&sfp->timeout); in sfp_cleanup()
2964 if (sfp->i2c_mii) { in sfp_cleanup()
2965 mdiobus_unregister(sfp->i2c_mii); in sfp_cleanup()
2966 mdiobus_free(sfp->i2c_mii); in sfp_cleanup()
2968 if (sfp->i2c) in sfp_cleanup()
2969 i2c_put_adapter(sfp->i2c); in sfp_cleanup()
2970 kfree(sfp); in sfp_cleanup()
2973 static int sfp_i2c_get(struct sfp *sfp) in sfp_i2c_get() argument
2979 h = fwnode_find_reference(dev_fwnode(sfp->dev), "i2c-bus", 0); in sfp_i2c_get()
2981 dev_err(sfp->dev, "missing 'i2c-bus' property\n"); in sfp_i2c_get()
2991 err = sfp_i2c_configure(sfp, i2c); in sfp_i2c_get()
3003 struct sfp *sfp; in sfp_probe() local
3006 sfp = sfp_alloc(&pdev->dev); in sfp_probe()
3007 if (IS_ERR(sfp)) in sfp_probe()
3008 return PTR_ERR(sfp); in sfp_probe()
3010 platform_set_drvdata(pdev, sfp); in sfp_probe()
3012 err = devm_add_action_or_reset(sfp->dev, sfp_cleanup, sfp); in sfp_probe()
3016 sff = device_get_match_data(sfp->dev); in sfp_probe()
3020 sfp->type = sff; in sfp_probe()
3022 err = sfp_i2c_get(sfp); in sfp_probe()
3028 sfp->gpio[i] = devm_gpiod_get_optional(sfp->dev, in sfp_probe()
3030 if (IS_ERR(sfp->gpio[i])) in sfp_probe()
3031 return PTR_ERR(sfp->gpio[i]); in sfp_probe()
3034 sfp->state_hw_mask = SFP_F_PRESENT; in sfp_probe()
3035 sfp->state_hw_drive = SFP_F_TX_DISABLE; in sfp_probe()
3037 sfp->get_state = sfp_gpio_get_state; in sfp_probe()
3038 sfp->set_state = sfp_gpio_set_state; in sfp_probe()
3041 if (!(sfp->gpio[GPIO_MODDEF0])) in sfp_probe()
3042 sfp->get_state = sff_gpio_get_state; in sfp_probe()
3045 &sfp->max_power_mW); in sfp_probe()
3046 if (sfp->max_power_mW < 1000) { in sfp_probe()
3047 if (sfp->max_power_mW) in sfp_probe()
3048 dev_warn(sfp->dev, in sfp_probe()
3050 sfp->max_power_mW = 1000; in sfp_probe()
3053 dev_info(sfp->dev, "Host maximum power %u.%uW\n", in sfp_probe()
3054 sfp->max_power_mW / 1000, (sfp->max_power_mW / 100) % 10); in sfp_probe()
3059 sfp->state = sfp_get_state(sfp) | SFP_F_TX_DISABLE; in sfp_probe()
3061 if (sfp->gpio[GPIO_RS0] && in sfp_probe()
3062 gpiod_get_value_cansleep(sfp->gpio[GPIO_RS0])) in sfp_probe()
3063 sfp->state |= SFP_F_RS0; in sfp_probe()
3064 sfp_set_state(sfp, sfp->state); in sfp_probe()
3065 sfp_module_tx_disable(sfp); in sfp_probe()
3066 if (sfp->state & SFP_F_PRESENT) { in sfp_probe()
3068 sfp_sm_event(sfp, SFP_E_INSERT); in sfp_probe()
3073 if (gpio_flags[i] != GPIOD_IN || !sfp->gpio[i]) in sfp_probe()
3076 sfp->gpio_irq[i] = gpiod_to_irq(sfp->gpio[i]); in sfp_probe()
3077 if (sfp->gpio_irq[i] < 0) { in sfp_probe()
3078 sfp->gpio_irq[i] = 0; in sfp_probe()
3079 sfp->need_poll = true; in sfp_probe()
3083 sfp_irq_name = devm_kasprintf(sfp->dev, GFP_KERNEL, in sfp_probe()
3084 "%s-%s", dev_name(sfp->dev), in sfp_probe()
3090 err = devm_request_threaded_irq(sfp->dev, sfp->gpio_irq[i], in sfp_probe()
3095 sfp_irq_name, sfp); in sfp_probe()
3097 sfp->gpio_irq[i] = 0; in sfp_probe()
3098 sfp->need_poll = true; in sfp_probe()
3102 if (sfp->need_poll) in sfp_probe()
3103 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_probe()
3110 if (!sfp->gpio[GPIO_TX_DISABLE]) in sfp_probe()
3111 dev_warn(sfp->dev, in sfp_probe()
3112 "No tx_disable pin: SFP modules will always be emitting.\n"); in sfp_probe()
3114 sfp->sfp_bus = sfp_register_socket(sfp->dev, sfp, &sfp_module_ops); in sfp_probe()
3115 if (!sfp->sfp_bus) in sfp_probe()
3118 sfp_debugfs_init(sfp); in sfp_probe()
3125 struct sfp *sfp = platform_get_drvdata(pdev); in sfp_remove() local
3127 sfp_debugfs_exit(sfp); in sfp_remove()
3128 sfp_unregister_socket(sfp->sfp_bus); in sfp_remove()
3131 sfp_sm_event(sfp, SFP_E_REMOVE); in sfp_remove()
3137 struct sfp *sfp = platform_get_drvdata(pdev); in sfp_shutdown() local
3141 if (!sfp->gpio_irq[i]) in sfp_shutdown()
3144 devm_free_irq(sfp->dev, sfp->gpio_irq[i], sfp); in sfp_shutdown()
3147 cancel_delayed_work_sync(&sfp->poll); in sfp_shutdown()
3148 cancel_delayed_work_sync(&sfp->timeout); in sfp_shutdown()
3156 .name = "sfp",
3175 MODULE_ALIAS("platform:sfp");
3178 MODULE_DESCRIPTION("SFP cage support");