Lines Matching full:sfp
21 #include "sfp.h"
166 * on board (for a copper SFP) time to initialise.
193 /* SFP module presence detection is poor: the three MOD DEF signals are
207 /* SFP modules appear to always have their PHY configured for bus address
209 * RollBall SFPs access phy via SFP Enhanced Digital Diagnostic Interface
220 struct sfp { struct
231 unsigned int (*get_state)(struct sfp *); argument
232 void (*set_state)(struct sfp *, unsigned int); argument
233 int (*read)(struct sfp *, bool, u8, void *, size_t); argument
234 int (*write)(struct sfp *, bool, u8, void *, size_t); argument
294 /* SFP GPON module Ubiquiti U-Fiber Instant has in its EEPROM stored in sfp_module_supported()
295 * phys id SFF instead of SFP. Therefore mark this module explicitly in sfp_module_supported()
315 { .compatible = "sff,sfp", .data = &sfp_data, },
320 static void sfp_fixup_long_startup(struct sfp *sfp) in sfp_fixup_long_startup() argument
322 sfp->module_t_start_up = T_START_UP_BAD_GPON; in sfp_fixup_long_startup()
325 static void sfp_fixup_ignore_tx_fault(struct sfp *sfp) in sfp_fixup_ignore_tx_fault() argument
327 sfp->tx_fault_ignore = true; in sfp_fixup_ignore_tx_fault()
330 static void sfp_fixup_halny_gsfp(struct sfp *sfp) in sfp_fixup_halny_gsfp() argument
336 sfp->state_hw_mask &= ~(SFP_F_TX_FAULT | SFP_F_LOS); in sfp_fixup_halny_gsfp()
339 static void sfp_fixup_rollball(struct sfp *sfp) in sfp_fixup_rollball() argument
341 sfp->mdio_protocol = MDIO_I2C_ROLLBALL; in sfp_fixup_rollball()
342 sfp->module_t_wait = T_WAIT_ROLLBALL; in sfp_fixup_rollball()
345 static void sfp_fixup_rollball_cc(struct sfp *sfp) in sfp_fixup_rollball_cc() argument
347 sfp_fixup_rollball(sfp); in sfp_fixup_rollball_cc()
352 sfp->id.base.extended_cc = SFF8024_ECC_10GBASE_T_SFI; in sfp_fixup_rollball_cc()
403 SFP_QUIRK_F("OEM", "SFP-10G-T", sfp_fixup_rollball_cc),
452 static unsigned int sfp_gpio_get_state(struct sfp *sfp) in sfp_gpio_get_state() argument
457 if (gpio_flags[i] != GPIOD_IN || !sfp->gpio[i]) in sfp_gpio_get_state()
460 v = gpiod_get_value_cansleep(sfp->gpio[i]); in sfp_gpio_get_state()
468 static unsigned int sff_gpio_get_state(struct sfp *sfp) in sff_gpio_get_state() argument
470 return sfp_gpio_get_state(sfp) | SFP_F_PRESENT; in sff_gpio_get_state()
473 static void sfp_gpio_set_state(struct sfp *sfp, unsigned int state) in sfp_gpio_set_state() argument
477 if (sfp->gpio[GPIO_TX_DISABLE]) in sfp_gpio_set_state()
478 gpiod_direction_output(sfp->gpio[GPIO_TX_DISABLE], in sfp_gpio_set_state()
481 gpiod_direction_output(sfp->gpio[GPIO_RATE_SELECT], in sfp_gpio_set_state()
485 if (sfp->gpio[GPIO_TX_DISABLE]) in sfp_gpio_set_state()
486 gpiod_direction_input(sfp->gpio[GPIO_TX_DISABLE]); in sfp_gpio_set_state()
488 gpiod_direction_input(sfp->gpio[GPIO_RATE_SELECT]); in sfp_gpio_set_state()
492 static int sfp_i2c_read(struct sfp *sfp, bool a2, u8 dev_addr, void *buf, in sfp_i2c_read() argument
497 size_t block_size = sfp->i2c_block_size; in sfp_i2c_read()
517 ret = i2c_transfer(sfp->i2c, msgs, ARRAY_SIZE(msgs)); in sfp_i2c_read()
532 static int sfp_i2c_write(struct sfp *sfp, bool a2, u8 dev_addr, void *buf, in sfp_i2c_write() argument
549 ret = i2c_transfer(sfp->i2c, msgs, ARRAY_SIZE(msgs)); in sfp_i2c_write()
559 static int sfp_i2c_configure(struct sfp *sfp, struct i2c_adapter *i2c) in sfp_i2c_configure() argument
564 sfp->i2c = i2c; in sfp_i2c_configure()
565 sfp->read = sfp_i2c_read; in sfp_i2c_configure()
566 sfp->write = sfp_i2c_write; in sfp_i2c_configure()
571 static int sfp_i2c_mdiobus_create(struct sfp *sfp) in sfp_i2c_mdiobus_create() argument
576 i2c_mii = mdio_i2c_alloc(sfp->dev, sfp->i2c, sfp->mdio_protocol); in sfp_i2c_mdiobus_create()
580 i2c_mii->name = "SFP I2C Bus"; in sfp_i2c_mdiobus_create()
589 sfp->i2c_mii = i2c_mii; in sfp_i2c_mdiobus_create()
594 static void sfp_i2c_mdiobus_destroy(struct sfp *sfp) in sfp_i2c_mdiobus_destroy() argument
596 mdiobus_unregister(sfp->i2c_mii); in sfp_i2c_mdiobus_destroy()
597 sfp->i2c_mii = NULL; in sfp_i2c_mdiobus_destroy()
601 static int sfp_read(struct sfp *sfp, bool a2, u8 addr, void *buf, size_t len) in sfp_read() argument
603 return sfp->read(sfp, a2, addr, buf, len); in sfp_read()
606 static int sfp_write(struct sfp *sfp, bool a2, u8 addr, void *buf, size_t len) in sfp_write() argument
608 return sfp->write(sfp, a2, addr, buf, len); in sfp_write()
611 static unsigned int sfp_soft_get_state(struct sfp *sfp) in sfp_soft_get_state() argument
617 ret = sfp_read(sfp, true, SFP_STATUS, &status, sizeof(status)); in sfp_soft_get_state()
624 dev_err_ratelimited(sfp->dev, in sfp_soft_get_state()
625 "failed to read SFP soft status: %pe\n", in sfp_soft_get_state()
628 state = sfp->state; in sfp_soft_get_state()
631 return state & sfp->state_soft_mask; in sfp_soft_get_state()
634 static void sfp_soft_set_state(struct sfp *sfp, unsigned int state) in sfp_soft_set_state() argument
638 if (sfp_read(sfp, true, SFP_STATUS, &status, sizeof(status)) == in sfp_soft_set_state()
645 sfp_write(sfp, true, SFP_STATUS, &status, sizeof(status)); in sfp_soft_set_state()
649 static void sfp_soft_start_poll(struct sfp *sfp) in sfp_soft_start_poll() argument
651 const struct sfp_eeprom_id *id = &sfp->id; in sfp_soft_start_poll()
654 sfp->state_soft_mask = 0; in sfp_soft_start_poll()
663 sfp->state_soft_mask = ~sfp->state_hw_mask & mask; in sfp_soft_start_poll()
665 if (sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT) && in sfp_soft_start_poll()
666 !sfp->need_poll) in sfp_soft_start_poll()
667 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_soft_start_poll()
670 static void sfp_soft_stop_poll(struct sfp *sfp) in sfp_soft_stop_poll() argument
672 sfp->state_soft_mask = 0; in sfp_soft_stop_poll()
675 static unsigned int sfp_get_state(struct sfp *sfp) in sfp_get_state() argument
677 unsigned int soft = sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT); in sfp_get_state()
680 state = sfp->get_state(sfp) & sfp->state_hw_mask; in sfp_get_state()
682 state |= sfp_soft_get_state(sfp); in sfp_get_state()
687 static void sfp_set_state(struct sfp *sfp, unsigned int state) in sfp_set_state() argument
689 sfp->set_state(sfp, state); in sfp_set_state()
692 sfp->state_soft_mask & SFP_F_TX_DISABLE) in sfp_set_state()
693 sfp_soft_set_state(sfp, state); in sfp_set_state()
712 const struct sfp *sfp = data; in sfp_hwmon_is_visible() local
725 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
744 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
763 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
779 if (sfp->id.ext.diagmon & SFP_DIAGMON_EXT_CAL && in sfp_hwmon_is_visible()
791 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
805 static int sfp_hwmon_read_sensor(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_sensor() argument
810 err = sfp_read(sfp, true, reg, &val, sizeof(val)); in sfp_hwmon_read_sensor()
824 static void sfp_hwmon_calibrate(struct sfp *sfp, unsigned int slope, int offset, in sfp_hwmon_calibrate() argument
827 if (sfp->id.ext.diagmon & SFP_DIAGMON_EXT_CAL) in sfp_hwmon_calibrate()
831 static void sfp_hwmon_calibrate_temp(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_temp() argument
833 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_t_slope), in sfp_hwmon_calibrate_temp()
834 be16_to_cpu(sfp->diag.cal_t_offset), value); in sfp_hwmon_calibrate_temp()
842 static void sfp_hwmon_calibrate_vcc(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_vcc() argument
844 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_v_slope), in sfp_hwmon_calibrate_vcc()
845 be16_to_cpu(sfp->diag.cal_v_offset), value); in sfp_hwmon_calibrate_vcc()
850 static void sfp_hwmon_calibrate_bias(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_bias() argument
852 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_txi_slope), in sfp_hwmon_calibrate_bias()
853 be16_to_cpu(sfp->diag.cal_txi_offset), value); in sfp_hwmon_calibrate_bias()
858 static void sfp_hwmon_calibrate_tx_power(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_tx_power() argument
860 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_txpwr_slope), in sfp_hwmon_calibrate_tx_power()
861 be16_to_cpu(sfp->diag.cal_txpwr_offset), value); in sfp_hwmon_calibrate_tx_power()
866 static int sfp_hwmon_read_temp(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_temp() argument
870 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_temp()
874 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_read_temp()
879 static int sfp_hwmon_read_vcc(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_vcc() argument
883 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_vcc()
887 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_read_vcc()
892 static int sfp_hwmon_read_bias(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_bias() argument
896 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_bias()
900 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_read_bias()
905 static int sfp_hwmon_read_tx_power(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_tx_power() argument
909 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_tx_power()
913 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_read_tx_power()
918 static int sfp_hwmon_read_rx_power(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_rx_power() argument
922 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_rx_power()
931 static int sfp_hwmon_temp(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_temp() argument
938 return sfp_hwmon_read_temp(sfp, SFP_TEMP, value); in sfp_hwmon_temp()
941 *value = be16_to_cpu(sfp->diag.temp_low_alarm); in sfp_hwmon_temp()
942 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
946 *value = be16_to_cpu(sfp->diag.temp_low_warn); in sfp_hwmon_temp()
947 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
950 *value = be16_to_cpu(sfp->diag.temp_high_warn); in sfp_hwmon_temp()
951 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
955 *value = be16_to_cpu(sfp->diag.temp_high_alarm); in sfp_hwmon_temp()
956 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
960 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_temp()
968 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_temp()
976 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_temp()
984 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_temp()
997 static int sfp_hwmon_vcc(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_vcc() argument
1004 return sfp_hwmon_read_vcc(sfp, SFP_VCC, value); in sfp_hwmon_vcc()
1007 *value = be16_to_cpu(sfp->diag.volt_low_alarm); in sfp_hwmon_vcc()
1008 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
1012 *value = be16_to_cpu(sfp->diag.volt_low_warn); in sfp_hwmon_vcc()
1013 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
1017 *value = be16_to_cpu(sfp->diag.volt_high_warn); in sfp_hwmon_vcc()
1018 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
1022 *value = be16_to_cpu(sfp->diag.volt_high_alarm); in sfp_hwmon_vcc()
1023 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
1027 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_vcc()
1035 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_vcc()
1043 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_vcc()
1051 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_vcc()
1064 static int sfp_hwmon_bias(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_bias() argument
1071 return sfp_hwmon_read_bias(sfp, SFP_TX_BIAS, value); in sfp_hwmon_bias()
1074 *value = be16_to_cpu(sfp->diag.bias_low_alarm); in sfp_hwmon_bias()
1075 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
1079 *value = be16_to_cpu(sfp->diag.bias_low_warn); in sfp_hwmon_bias()
1080 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
1084 *value = be16_to_cpu(sfp->diag.bias_high_warn); in sfp_hwmon_bias()
1085 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
1089 *value = be16_to_cpu(sfp->diag.bias_high_alarm); in sfp_hwmon_bias()
1090 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
1094 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_bias()
1102 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_bias()
1110 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_bias()
1118 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_bias()
1131 static int sfp_hwmon_tx_power(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_tx_power() argument
1138 return sfp_hwmon_read_tx_power(sfp, SFP_TX_POWER, value); in sfp_hwmon_tx_power()
1141 *value = be16_to_cpu(sfp->diag.txpwr_low_alarm); in sfp_hwmon_tx_power()
1142 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1146 *value = be16_to_cpu(sfp->diag.txpwr_low_warn); in sfp_hwmon_tx_power()
1147 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1151 *value = be16_to_cpu(sfp->diag.txpwr_high_warn); in sfp_hwmon_tx_power()
1152 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1156 *value = be16_to_cpu(sfp->diag.txpwr_high_alarm); in sfp_hwmon_tx_power()
1157 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1161 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1169 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1177 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1185 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1198 static int sfp_hwmon_rx_power(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_rx_power() argument
1205 return sfp_hwmon_read_rx_power(sfp, SFP_RX_POWER, value); in sfp_hwmon_rx_power()
1208 *value = be16_to_cpu(sfp->diag.rxpwr_low_alarm); in sfp_hwmon_rx_power()
1213 *value = be16_to_cpu(sfp->diag.rxpwr_low_warn); in sfp_hwmon_rx_power()
1218 *value = be16_to_cpu(sfp->diag.rxpwr_high_warn); in sfp_hwmon_rx_power()
1223 *value = be16_to_cpu(sfp->diag.rxpwr_high_alarm); in sfp_hwmon_rx_power()
1228 err = sfp_read(sfp, true, SFP_ALARM1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1236 err = sfp_read(sfp, true, SFP_WARN1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1244 err = sfp_read(sfp, true, SFP_WARN1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1252 err = sfp_read(sfp, true, SFP_ALARM1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1268 struct sfp *sfp = dev_get_drvdata(dev); in sfp_hwmon_read() local
1272 return sfp_hwmon_temp(sfp, attr, value); in sfp_hwmon_read()
1274 return sfp_hwmon_vcc(sfp, attr, value); in sfp_hwmon_read()
1276 return sfp_hwmon_bias(sfp, attr, value); in sfp_hwmon_read()
1280 return sfp_hwmon_tx_power(sfp, attr, value); in sfp_hwmon_read()
1282 return sfp_hwmon_rx_power(sfp, attr, value); in sfp_hwmon_read()
1399 struct sfp *sfp = container_of(work, struct sfp, hwmon_probe.work); in sfp_hwmon_probe() local
1408 if (sfp->i2c_block_size < 2) { in sfp_hwmon_probe()
1409 dev_info(sfp->dev, in sfp_hwmon_probe()
1411 dev_info(sfp->dev, in sfp_hwmon_probe()
1416 err = sfp_read(sfp, true, 0, &sfp->diag, sizeof(sfp->diag)); in sfp_hwmon_probe()
1418 if (sfp->hwmon_tries--) { in sfp_hwmon_probe()
1419 mod_delayed_work(system_wq, &sfp->hwmon_probe, in sfp_hwmon_probe()
1422 dev_warn(sfp->dev, "hwmon probe failed: %pe\n", in sfp_hwmon_probe()
1428 sfp->hwmon_name = hwmon_sanitize_name(dev_name(sfp->dev)); in sfp_hwmon_probe()
1429 if (IS_ERR(sfp->hwmon_name)) { in sfp_hwmon_probe()
1430 dev_err(sfp->dev, "out of memory for hwmon name\n"); in sfp_hwmon_probe()
1434 sfp->hwmon_dev = hwmon_device_register_with_info(sfp->dev, in sfp_hwmon_probe()
1435 sfp->hwmon_name, sfp, in sfp_hwmon_probe()
1438 if (IS_ERR(sfp->hwmon_dev)) in sfp_hwmon_probe()
1439 dev_err(sfp->dev, "failed to register hwmon device: %ld\n", in sfp_hwmon_probe()
1440 PTR_ERR(sfp->hwmon_dev)); in sfp_hwmon_probe()
1443 static int sfp_hwmon_insert(struct sfp *sfp) in sfp_hwmon_insert() argument
1445 if (sfp->id.ext.sff8472_compliance == SFP_SFF8472_COMPLIANCE_NONE) in sfp_hwmon_insert()
1448 if (!(sfp->id.ext.diagmon & SFP_DIAGMON_DDM)) in sfp_hwmon_insert()
1451 if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE) in sfp_hwmon_insert()
1457 mod_delayed_work(system_wq, &sfp->hwmon_probe, 1); in sfp_hwmon_insert()
1458 sfp->hwmon_tries = R_PROBE_RETRY_SLOW; in sfp_hwmon_insert()
1463 static void sfp_hwmon_remove(struct sfp *sfp) in sfp_hwmon_remove() argument
1465 cancel_delayed_work_sync(&sfp->hwmon_probe); in sfp_hwmon_remove()
1466 if (!IS_ERR_OR_NULL(sfp->hwmon_dev)) { in sfp_hwmon_remove()
1467 hwmon_device_unregister(sfp->hwmon_dev); in sfp_hwmon_remove()
1468 sfp->hwmon_dev = NULL; in sfp_hwmon_remove()
1469 kfree(sfp->hwmon_name); in sfp_hwmon_remove()
1473 static int sfp_hwmon_init(struct sfp *sfp) in sfp_hwmon_init() argument
1475 INIT_DELAYED_WORK(&sfp->hwmon_probe, sfp_hwmon_probe); in sfp_hwmon_init()
1480 static void sfp_hwmon_exit(struct sfp *sfp) in sfp_hwmon_exit() argument
1482 cancel_delayed_work_sync(&sfp->hwmon_probe); in sfp_hwmon_exit()
1485 static int sfp_hwmon_insert(struct sfp *sfp) in sfp_hwmon_insert() argument
1490 static void sfp_hwmon_remove(struct sfp *sfp) in sfp_hwmon_remove() argument
1494 static int sfp_hwmon_init(struct sfp *sfp) in sfp_hwmon_init() argument
1499 static void sfp_hwmon_exit(struct sfp *sfp) in sfp_hwmon_exit() argument
1505 static void sfp_module_tx_disable(struct sfp *sfp) in sfp_module_tx_disable() argument
1507 dev_dbg(sfp->dev, "tx disable %u -> %u\n", in sfp_module_tx_disable()
1508 sfp->state & SFP_F_TX_DISABLE ? 1 : 0, 1); in sfp_module_tx_disable()
1509 sfp->state |= SFP_F_TX_DISABLE; in sfp_module_tx_disable()
1510 sfp_set_state(sfp, sfp->state); in sfp_module_tx_disable()
1513 static void sfp_module_tx_enable(struct sfp *sfp) in sfp_module_tx_enable() argument
1515 dev_dbg(sfp->dev, "tx disable %u -> %u\n", in sfp_module_tx_enable()
1516 sfp->state & SFP_F_TX_DISABLE ? 1 : 0, 0); in sfp_module_tx_enable()
1517 sfp->state &= ~SFP_F_TX_DISABLE; in sfp_module_tx_enable()
1518 sfp_set_state(sfp, sfp->state); in sfp_module_tx_enable()
1524 struct sfp *sfp = s->private; in sfp_debug_state_show() local
1527 mod_state_to_str(sfp->sm_mod_state)); in sfp_debug_state_show()
1529 R_PROBE_RETRY_INIT - sfp->sm_mod_tries_init, in sfp_debug_state_show()
1530 R_PROBE_RETRY_SLOW - sfp->sm_mod_tries); in sfp_debug_state_show()
1532 dev_state_to_str(sfp->sm_dev_state)); in sfp_debug_state_show()
1534 sm_state_to_str(sfp->sm_state)); in sfp_debug_state_show()
1536 sfp->sm_fault_retries); in sfp_debug_state_show()
1538 sfp->sm_phy_retries); in sfp_debug_state_show()
1539 seq_printf(s, "moddef0: %d\n", !!(sfp->state & SFP_F_PRESENT)); in sfp_debug_state_show()
1540 seq_printf(s, "rx_los: %d\n", !!(sfp->state & SFP_F_LOS)); in sfp_debug_state_show()
1541 seq_printf(s, "tx_fault: %d\n", !!(sfp->state & SFP_F_TX_FAULT)); in sfp_debug_state_show()
1542 seq_printf(s, "tx_disable: %d\n", !!(sfp->state & SFP_F_TX_DISABLE)); in sfp_debug_state_show()
1547 static void sfp_debugfs_init(struct sfp *sfp) in sfp_debugfs_init() argument
1549 sfp->debugfs_dir = debugfs_create_dir(dev_name(sfp->dev), NULL); in sfp_debugfs_init()
1551 debugfs_create_file("state", 0600, sfp->debugfs_dir, sfp, in sfp_debugfs_init()
1555 static void sfp_debugfs_exit(struct sfp *sfp) in sfp_debugfs_exit() argument
1557 debugfs_remove_recursive(sfp->debugfs_dir); in sfp_debugfs_exit()
1560 static void sfp_debugfs_init(struct sfp *sfp) in sfp_debugfs_init() argument
1564 static void sfp_debugfs_exit(struct sfp *sfp) in sfp_debugfs_exit() argument
1569 static void sfp_module_tx_fault_reset(struct sfp *sfp) in sfp_module_tx_fault_reset() argument
1571 unsigned int state = sfp->state; in sfp_module_tx_fault_reset()
1576 sfp_set_state(sfp, state | SFP_F_TX_DISABLE); in sfp_module_tx_fault_reset()
1580 sfp_set_state(sfp, state); in sfp_module_tx_fault_reset()
1583 /* SFP state machine */
1584 static void sfp_sm_set_timer(struct sfp *sfp, unsigned int timeout) in sfp_sm_set_timer() argument
1587 mod_delayed_work(system_power_efficient_wq, &sfp->timeout, in sfp_sm_set_timer()
1590 cancel_delayed_work(&sfp->timeout); in sfp_sm_set_timer()
1593 static void sfp_sm_next(struct sfp *sfp, unsigned int state, in sfp_sm_next() argument
1596 sfp->sm_state = state; in sfp_sm_next()
1597 sfp_sm_set_timer(sfp, timeout); in sfp_sm_next()
1600 static void sfp_sm_mod_next(struct sfp *sfp, unsigned int state, in sfp_sm_mod_next() argument
1603 sfp->sm_mod_state = state; in sfp_sm_mod_next()
1604 sfp_sm_set_timer(sfp, timeout); in sfp_sm_mod_next()
1607 static void sfp_sm_phy_detach(struct sfp *sfp) in sfp_sm_phy_detach() argument
1609 sfp_remove_phy(sfp->sfp_bus); in sfp_sm_phy_detach()
1610 phy_device_remove(sfp->mod_phy); in sfp_sm_phy_detach()
1611 phy_device_free(sfp->mod_phy); in sfp_sm_phy_detach()
1612 sfp->mod_phy = NULL; in sfp_sm_phy_detach()
1615 static int sfp_sm_probe_phy(struct sfp *sfp, int addr, bool is_c45) in sfp_sm_probe_phy() argument
1620 phy = get_phy_device(sfp->i2c_mii, addr, is_c45); in sfp_sm_probe_phy()
1624 dev_err(sfp->dev, "mdiobus scan returned %pe\n", phy); in sfp_sm_probe_phy()
1631 dev_err(sfp->dev, "phy_device_register failed: %pe\n", in sfp_sm_probe_phy()
1636 err = sfp_add_phy(sfp->sfp_bus, phy); in sfp_sm_probe_phy()
1640 dev_err(sfp->dev, "sfp_add_phy failed: %pe\n", ERR_PTR(err)); in sfp_sm_probe_phy()
1644 sfp->mod_phy = phy; in sfp_sm_probe_phy()
1649 static void sfp_sm_link_up(struct sfp *sfp) in sfp_sm_link_up() argument
1651 sfp_link_up(sfp->sfp_bus); in sfp_sm_link_up()
1652 sfp_sm_next(sfp, SFP_S_LINK_UP, 0); in sfp_sm_link_up()
1655 static void sfp_sm_link_down(struct sfp *sfp) in sfp_sm_link_down() argument
1657 sfp_link_down(sfp->sfp_bus); in sfp_sm_link_down()
1660 static void sfp_sm_link_check_los(struct sfp *sfp) in sfp_sm_link_check_los() argument
1664 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_sm_link_check_los()
1672 los = !(sfp->state & SFP_F_LOS); in sfp_sm_link_check_los()
1674 los = !!(sfp->state & SFP_F_LOS); in sfp_sm_link_check_los()
1677 sfp_sm_next(sfp, SFP_S_WAIT_LOS, 0); in sfp_sm_link_check_los()
1679 sfp_sm_link_up(sfp); in sfp_sm_link_check_los()
1682 static bool sfp_los_event_active(struct sfp *sfp, unsigned int event) in sfp_los_event_active() argument
1686 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_los_event_active()
1692 static bool sfp_los_event_inactive(struct sfp *sfp, unsigned int event) in sfp_los_event_inactive() argument
1696 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_los_event_inactive()
1702 static void sfp_sm_fault(struct sfp *sfp, unsigned int next_state, bool warn) in sfp_sm_fault() argument
1704 if (sfp->sm_fault_retries && !--sfp->sm_fault_retries) { in sfp_sm_fault()
1705 dev_err(sfp->dev, in sfp_sm_fault()
1707 sfp_sm_next(sfp, SFP_S_TX_DISABLE, 0); in sfp_sm_fault()
1710 dev_err(sfp->dev, "module transmit fault indicated\n"); in sfp_sm_fault()
1712 sfp_sm_next(sfp, next_state, T_FAULT_RECOVER); in sfp_sm_fault()
1716 static int sfp_sm_add_mdio_bus(struct sfp *sfp) in sfp_sm_add_mdio_bus() argument
1718 if (sfp->mdio_protocol != MDIO_I2C_NONE) in sfp_sm_add_mdio_bus()
1719 return sfp_i2c_mdiobus_create(sfp); in sfp_sm_add_mdio_bus()
1724 /* Probe a SFP for a PHY device if the module supports copper - the PHY
1728 * Clause 22 copper SFP modules normally operate in Cisco SGMII mode with
1732 * Clause 45 copper SFP+ modules (10G) appear to switch their interface
1735 static int sfp_sm_probe_for_phy(struct sfp *sfp) in sfp_sm_probe_for_phy() argument
1739 switch (sfp->mdio_protocol) { in sfp_sm_probe_for_phy()
1744 err = sfp_sm_probe_phy(sfp, SFP_PHY_ADDR, false); in sfp_sm_probe_for_phy()
1748 err = sfp_sm_probe_phy(sfp, SFP_PHY_ADDR, true); in sfp_sm_probe_for_phy()
1752 err = sfp_sm_probe_phy(sfp, SFP_PHY_ADDR_ROLLBALL, true); in sfp_sm_probe_for_phy()
1759 static int sfp_module_parse_power(struct sfp *sfp) in sfp_module_parse_power() argument
1764 if (sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_POWER_DECL)) in sfp_module_parse_power()
1766 if (sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_HIGH_POWER_LEVEL)) in sfp_module_parse_power()
1769 supports_a2 = sfp->id.ext.sff8472_compliance != in sfp_module_parse_power()
1771 sfp->id.ext.diagmon & SFP_DIAGMON_DDM; in sfp_module_parse_power()
1773 if (power_mW > sfp->max_power_mW) { in sfp_module_parse_power()
1780 dev_err(sfp->dev, in sfp_module_parse_power()
1785 dev_warn(sfp->dev, in sfp_module_parse_power()
1794 sfp->module_power_mW = power_mW; in sfp_module_parse_power()
1810 if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE) { in sfp_module_parse_power()
1811 dev_warn(sfp->dev, in sfp_module_parse_power()
1817 sfp->module_power_mW = power_mW; in sfp_module_parse_power()
1822 static int sfp_sm_mod_hpower(struct sfp *sfp, bool enable) in sfp_sm_mod_hpower() argument
1827 err = sfp_read(sfp, true, SFP_EXT_STATUS, &val, sizeof(val)); in sfp_sm_mod_hpower()
1829 dev_err(sfp->dev, "Failed to read EEPROM: %pe\n", ERR_PTR(err)); in sfp_sm_mod_hpower()
1845 err = sfp_write(sfp, true, SFP_EXT_STATUS, &val, sizeof(val)); in sfp_sm_mod_hpower()
1847 dev_err(sfp->dev, "Failed to write EEPROM: %pe\n", in sfp_sm_mod_hpower()
1853 dev_info(sfp->dev, "Module switched to %u.%uW power level\n", in sfp_sm_mod_hpower()
1854 sfp->module_power_mW / 1000, in sfp_sm_mod_hpower()
1855 (sfp->module_power_mW / 100) % 10); in sfp_sm_mod_hpower()
1871 static bool sfp_id_needs_byte_io(struct sfp *sfp, void *buf, size_t len) in sfp_id_needs_byte_io() argument
1873 size_t i, block_size = sfp->i2c_block_size; in sfp_id_needs_byte_io()
1886 static int sfp_cotsworks_fixup_check(struct sfp *sfp, struct sfp_eeprom_id *id) in sfp_cotsworks_fixup_check() argument
1894 dev_warn(sfp->dev, "Rewriting fiber module EEPROM with corrected values\n"); in sfp_cotsworks_fixup_check()
1898 err = sfp_write(sfp, false, SFP_PHYS_ID, &id->base, 3); in sfp_cotsworks_fixup_check()
1900 dev_err(sfp->dev, in sfp_cotsworks_fixup_check()
1911 err = sfp_write(sfp, false, SFP_CC_BASE, &check, 1); in sfp_cotsworks_fixup_check()
1913 dev_err(sfp->dev, in sfp_cotsworks_fixup_check()
1922 static int sfp_sm_mod_probe(struct sfp *sfp, bool report) in sfp_sm_mod_probe() argument
1924 /* SFP module inserted - read I2C data */ in sfp_sm_mod_probe()
1931 /* Some SFP modules and also some Linux I2C drivers do not like reads in sfp_sm_mod_probe()
1935 sfp->i2c_block_size = 16; in sfp_sm_mod_probe()
1937 ret = sfp_read(sfp, false, 0, &id.base, sizeof(id.base)); in sfp_sm_mod_probe()
1940 dev_err(sfp->dev, "failed to read EEPROM: %pe\n", in sfp_sm_mod_probe()
1946 dev_err(sfp->dev, "EEPROM short read: %pe\n", ERR_PTR(ret)); in sfp_sm_mod_probe()
1950 /* Some SFP modules (e.g. Nokia 3FE46541AA) lock up if read from in sfp_sm_mod_probe()
1956 if (sfp_id_needs_byte_io(sfp, &id.base, sizeof(id.base))) { in sfp_sm_mod_probe()
1957 dev_info(sfp->dev, in sfp_sm_mod_probe()
1959 dev_info(sfp->dev, in sfp_sm_mod_probe()
1961 sfp->i2c_block_size = 1; in sfp_sm_mod_probe()
1963 ret = sfp_read(sfp, false, 0, &id.base, sizeof(id.base)); in sfp_sm_mod_probe()
1966 dev_err(sfp->dev, in sfp_sm_mod_probe()
1973 dev_err(sfp->dev, "EEPROM short read: %pe\n", in sfp_sm_mod_probe()
1991 ret = sfp_cotsworks_fixup_check(sfp, &id); in sfp_sm_mod_probe()
2000 dev_warn(sfp->dev, in sfp_sm_mod_probe()
2004 dev_err(sfp->dev, in sfp_sm_mod_probe()
2007 print_hex_dump(KERN_ERR, "sfp EE: ", DUMP_PREFIX_OFFSET, in sfp_sm_mod_probe()
2013 ret = sfp_read(sfp, false, SFP_CC_BASE + 1, &id.ext, sizeof(id.ext)); in sfp_sm_mod_probe()
2016 dev_err(sfp->dev, "failed to read EEPROM: %pe\n", in sfp_sm_mod_probe()
2022 dev_err(sfp->dev, "EEPROM short read: %pe\n", ERR_PTR(ret)); in sfp_sm_mod_probe()
2029 dev_warn(sfp->dev, in sfp_sm_mod_probe()
2033 dev_err(sfp->dev, in sfp_sm_mod_probe()
2036 print_hex_dump(KERN_ERR, "sfp EE: ", DUMP_PREFIX_OFFSET, in sfp_sm_mod_probe()
2042 sfp->id = id; in sfp_sm_mod_probe()
2044 dev_info(sfp->dev, "module %.*s %.*s rev %.*s sn %.*s dc %.*s\n", in sfp_sm_mod_probe()
2052 if (!sfp->type->module_supported(&id)) { in sfp_sm_mod_probe()
2053 dev_err(sfp->dev, in sfp_sm_mod_probe()
2055 sfp->id.base.phys_id, sfp->id.base.phys_ext_id); in sfp_sm_mod_probe()
2060 if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE) in sfp_sm_mod_probe()
2061 dev_warn(sfp->dev, in sfp_sm_mod_probe()
2065 ret = sfp_module_parse_power(sfp); in sfp_sm_mod_probe()
2070 sfp->state_hw_mask = SFP_F_PRESENT; in sfp_sm_mod_probe()
2071 if (sfp->gpio[GPIO_TX_DISABLE]) in sfp_sm_mod_probe()
2072 sfp->state_hw_mask |= SFP_F_TX_DISABLE; in sfp_sm_mod_probe()
2073 if (sfp->gpio[GPIO_TX_FAULT]) in sfp_sm_mod_probe()
2074 sfp->state_hw_mask |= SFP_F_TX_FAULT; in sfp_sm_mod_probe()
2075 if (sfp->gpio[GPIO_LOS]) in sfp_sm_mod_probe()
2076 sfp->state_hw_mask |= SFP_F_LOS; in sfp_sm_mod_probe()
2078 sfp->module_t_start_up = T_START_UP; in sfp_sm_mod_probe()
2079 sfp->module_t_wait = T_WAIT; in sfp_sm_mod_probe()
2081 sfp->tx_fault_ignore = false; in sfp_sm_mod_probe()
2083 if (sfp->id.base.extended_cc == SFF8024_ECC_10GBASE_T_SFI || in sfp_sm_mod_probe()
2084 sfp->id.base.extended_cc == SFF8024_ECC_10GBASE_T_SR || in sfp_sm_mod_probe()
2085 sfp->id.base.extended_cc == SFF8024_ECC_5GBASE_T || in sfp_sm_mod_probe()
2086 sfp->id.base.extended_cc == SFF8024_ECC_2_5GBASE_T) in sfp_sm_mod_probe()
2087 sfp->mdio_protocol = MDIO_I2C_C45; in sfp_sm_mod_probe()
2088 else if (sfp->id.base.e1000_base_t) in sfp_sm_mod_probe()
2089 sfp->mdio_protocol = MDIO_I2C_MARVELL_C22; in sfp_sm_mod_probe()
2091 sfp->mdio_protocol = MDIO_I2C_NONE; in sfp_sm_mod_probe()
2093 sfp->quirk = sfp_lookup_quirk(&id); in sfp_sm_mod_probe()
2094 if (sfp->quirk && sfp->quirk->fixup) in sfp_sm_mod_probe()
2095 sfp->quirk->fixup(sfp); in sfp_sm_mod_probe()
2100 static void sfp_sm_mod_remove(struct sfp *sfp) in sfp_sm_mod_remove() argument
2102 if (sfp->sm_mod_state > SFP_MOD_WAITDEV) in sfp_sm_mod_remove()
2103 sfp_module_remove(sfp->sfp_bus); in sfp_sm_mod_remove()
2105 sfp_hwmon_remove(sfp); in sfp_sm_mod_remove()
2107 memset(&sfp->id, 0, sizeof(sfp->id)); in sfp_sm_mod_remove()
2108 sfp->module_power_mW = 0; in sfp_sm_mod_remove()
2110 dev_info(sfp->dev, "module removed\n"); in sfp_sm_mod_remove()
2114 static void sfp_sm_device(struct sfp *sfp, unsigned int event) in sfp_sm_device() argument
2116 switch (sfp->sm_dev_state) { in sfp_sm_device()
2119 sfp->sm_dev_state = SFP_DEV_DOWN; in sfp_sm_device()
2124 sfp->sm_dev_state = SFP_DEV_DETACHED; in sfp_sm_device()
2126 sfp->sm_dev_state = SFP_DEV_UP; in sfp_sm_device()
2131 sfp->sm_dev_state = SFP_DEV_DETACHED; in sfp_sm_device()
2133 sfp->sm_dev_state = SFP_DEV_DOWN; in sfp_sm_device()
2141 static void sfp_sm_module(struct sfp *sfp, unsigned int event) in sfp_sm_module() argument
2147 if (sfp->sm_mod_state > SFP_MOD_PROBE) in sfp_sm_module()
2148 sfp_sm_mod_remove(sfp); in sfp_sm_module()
2149 sfp_sm_mod_next(sfp, SFP_MOD_EMPTY, 0); in sfp_sm_module()
2154 if (sfp->sm_dev_state < SFP_DEV_DOWN && in sfp_sm_module()
2155 sfp->sm_mod_state > SFP_MOD_WAITDEV) { in sfp_sm_module()
2156 if (sfp->module_power_mW > 1000 && in sfp_sm_module()
2157 sfp->sm_mod_state > SFP_MOD_HPOWER) in sfp_sm_module()
2158 sfp_sm_mod_hpower(sfp, false); in sfp_sm_module()
2159 sfp_sm_mod_next(sfp, SFP_MOD_WAITDEV, 0); in sfp_sm_module()
2163 switch (sfp->sm_mod_state) { in sfp_sm_module()
2166 sfp_sm_mod_next(sfp, SFP_MOD_PROBE, T_SERIAL); in sfp_sm_module()
2167 sfp->sm_mod_tries_init = R_PROBE_RETRY_INIT; in sfp_sm_module()
2168 sfp->sm_mod_tries = R_PROBE_RETRY_SLOW; in sfp_sm_module()
2177 err = sfp_sm_mod_probe(sfp, sfp->sm_mod_tries == 1); in sfp_sm_module()
2179 if (sfp->sm_mod_tries_init && in sfp_sm_module()
2180 --sfp->sm_mod_tries_init) { in sfp_sm_module()
2181 sfp_sm_set_timer(sfp, T_PROBE_RETRY_INIT); in sfp_sm_module()
2183 } else if (sfp->sm_mod_tries && --sfp->sm_mod_tries) { in sfp_sm_module()
2184 if (sfp->sm_mod_tries == R_PROBE_RETRY_SLOW - 1) in sfp_sm_module()
2185 dev_warn(sfp->dev, in sfp_sm_module()
2187 sfp_sm_set_timer(sfp, T_PROBE_RETRY_SLOW); in sfp_sm_module()
2192 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
2196 err = sfp_hwmon_insert(sfp); in sfp_sm_module()
2198 dev_warn(sfp->dev, "hwmon probe failed: %pe\n", in sfp_sm_module()
2201 sfp_sm_mod_next(sfp, SFP_MOD_WAITDEV, 0); in sfp_sm_module()
2205 if (sfp->sm_dev_state < SFP_DEV_DOWN) in sfp_sm_module()
2209 err = sfp_module_insert(sfp->sfp_bus, &sfp->id, in sfp_sm_module()
2210 sfp->quirk); in sfp_sm_module()
2212 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
2217 if (sfp->module_power_mW <= 1000) in sfp_sm_module()
2220 sfp_sm_mod_next(sfp, SFP_MOD_HPOWER, 0); in sfp_sm_module()
2224 err = sfp_sm_mod_hpower(sfp, true); in sfp_sm_module()
2227 sfp_module_remove(sfp->sfp_bus); in sfp_sm_module()
2228 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
2230 sfp_sm_set_timer(sfp, T_PROBE_RETRY_INIT); in sfp_sm_module()
2235 sfp_sm_mod_next(sfp, SFP_MOD_WAITPWR, T_HPOWER_LEVEL); in sfp_sm_module()
2244 sfp_sm_mod_next(sfp, SFP_MOD_PRESENT, 0); in sfp_sm_module()
2253 static void sfp_sm_main(struct sfp *sfp, unsigned int event) in sfp_sm_main() argument
2259 if (sfp->sm_state != SFP_S_DOWN && in sfp_sm_main()
2260 (sfp->sm_mod_state != SFP_MOD_PRESENT || in sfp_sm_main()
2261 sfp->sm_dev_state != SFP_DEV_UP)) { in sfp_sm_main()
2262 if (sfp->sm_state == SFP_S_LINK_UP && in sfp_sm_main()
2263 sfp->sm_dev_state == SFP_DEV_UP) in sfp_sm_main()
2264 sfp_sm_link_down(sfp); in sfp_sm_main()
2265 if (sfp->sm_state > SFP_S_INIT) in sfp_sm_main()
2266 sfp_module_stop(sfp->sfp_bus); in sfp_sm_main()
2267 if (sfp->mod_phy) in sfp_sm_main()
2268 sfp_sm_phy_detach(sfp); in sfp_sm_main()
2269 if (sfp->i2c_mii) in sfp_sm_main()
2270 sfp_i2c_mdiobus_destroy(sfp); in sfp_sm_main()
2271 sfp_module_tx_disable(sfp); in sfp_sm_main()
2272 sfp_soft_stop_poll(sfp); in sfp_sm_main()
2273 sfp_sm_next(sfp, SFP_S_DOWN, 0); in sfp_sm_main()
2278 switch (sfp->sm_state) { in sfp_sm_main()
2280 if (sfp->sm_mod_state != SFP_MOD_PRESENT || in sfp_sm_main()
2281 sfp->sm_dev_state != SFP_DEV_UP) in sfp_sm_main()
2284 if (!(sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE)) in sfp_sm_main()
2285 sfp_soft_start_poll(sfp); in sfp_sm_main()
2287 sfp_module_tx_enable(sfp); in sfp_sm_main()
2290 sfp->sm_fault_retries = N_FAULT_INIT; in sfp_sm_main()
2297 sfp_sm_next(sfp, SFP_S_WAIT, sfp->module_t_wait); in sfp_sm_main()
2304 if (sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2310 timeout = sfp->module_t_start_up; in sfp_sm_main()
2311 if (timeout > sfp->module_t_wait) in sfp_sm_main()
2312 timeout -= sfp->module_t_wait; in sfp_sm_main()
2316 sfp_sm_next(sfp, SFP_S_INIT, timeout); in sfp_sm_main()
2326 if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2330 sfp_sm_fault(sfp, SFP_S_INIT_TX_FAULT, in sfp_sm_main()
2331 sfp->sm_fault_retries == N_FAULT_INIT); in sfp_sm_main()
2335 ret = sfp_sm_add_mdio_bus(sfp); in sfp_sm_main()
2337 sfp_sm_next(sfp, SFP_S_FAIL, 0); in sfp_sm_main()
2340 sfp->sm_phy_retries = R_PHY_RETRY; in sfp_sm_main()
2352 ret = sfp_sm_probe_for_phy(sfp); in sfp_sm_main()
2354 if (--sfp->sm_phy_retries) { in sfp_sm_main()
2355 sfp_sm_next(sfp, SFP_S_INIT_PHY, T_PHY_RETRY); in sfp_sm_main()
2358 dev_info(sfp->dev, "no PHY detected\n"); in sfp_sm_main()
2361 sfp_sm_next(sfp, SFP_S_FAIL, 0); in sfp_sm_main()
2364 if (sfp_module_start(sfp->sfp_bus)) { in sfp_sm_main()
2365 sfp_sm_next(sfp, SFP_S_FAIL, 0); in sfp_sm_main()
2368 sfp_sm_link_check_los(sfp); in sfp_sm_main()
2371 sfp->sm_fault_retries = N_FAULT; in sfp_sm_main()
2376 sfp_module_tx_fault_reset(sfp); in sfp_sm_main()
2377 sfp_sm_next(sfp, SFP_S_INIT, sfp->module_t_start_up); in sfp_sm_main()
2383 sfp_sm_fault(sfp, SFP_S_TX_FAULT, true); in sfp_sm_main()
2384 else if (sfp_los_event_inactive(sfp, event)) in sfp_sm_main()
2385 sfp_sm_link_up(sfp); in sfp_sm_main()
2390 sfp_sm_link_down(sfp); in sfp_sm_main()
2391 sfp_sm_fault(sfp, SFP_S_TX_FAULT, true); in sfp_sm_main()
2392 } else if (sfp_los_event_active(sfp, event)) { in sfp_sm_main()
2393 sfp_sm_link_down(sfp); in sfp_sm_main()
2394 sfp_sm_next(sfp, SFP_S_WAIT_LOS, 0); in sfp_sm_main()
2400 sfp_module_tx_fault_reset(sfp); in sfp_sm_main()
2401 sfp_sm_next(sfp, SFP_S_REINIT, sfp->module_t_start_up); in sfp_sm_main()
2406 if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2407 sfp_sm_fault(sfp, SFP_S_TX_FAULT, false); in sfp_sm_main()
2409 dev_info(sfp->dev, "module transmit fault recovered\n"); in sfp_sm_main()
2410 sfp_sm_link_check_los(sfp); in sfp_sm_main()
2419 static void sfp_sm_event(struct sfp *sfp, unsigned int event) in sfp_sm_event() argument
2421 mutex_lock(&sfp->sm_mutex); in sfp_sm_event()
2423 dev_dbg(sfp->dev, "SM: enter %s:%s:%s event %s\n", in sfp_sm_event()
2424 mod_state_to_str(sfp->sm_mod_state), in sfp_sm_event()
2425 dev_state_to_str(sfp->sm_dev_state), in sfp_sm_event()
2426 sm_state_to_str(sfp->sm_state), in sfp_sm_event()
2429 sfp_sm_device(sfp, event); in sfp_sm_event()
2430 sfp_sm_module(sfp, event); in sfp_sm_event()
2431 sfp_sm_main(sfp, event); in sfp_sm_event()
2433 dev_dbg(sfp->dev, "SM: exit %s:%s:%s\n", in sfp_sm_event()
2434 mod_state_to_str(sfp->sm_mod_state), in sfp_sm_event()
2435 dev_state_to_str(sfp->sm_dev_state), in sfp_sm_event()
2436 sm_state_to_str(sfp->sm_state)); in sfp_sm_event()
2438 mutex_unlock(&sfp->sm_mutex); in sfp_sm_event()
2441 static void sfp_attach(struct sfp *sfp) in sfp_attach() argument
2443 sfp_sm_event(sfp, SFP_E_DEV_ATTACH); in sfp_attach()
2446 static void sfp_detach(struct sfp *sfp) in sfp_detach() argument
2448 sfp_sm_event(sfp, SFP_E_DEV_DETACH); in sfp_detach()
2451 static void sfp_start(struct sfp *sfp) in sfp_start() argument
2453 sfp_sm_event(sfp, SFP_E_DEV_UP); in sfp_start()
2456 static void sfp_stop(struct sfp *sfp) in sfp_stop() argument
2458 sfp_sm_event(sfp, SFP_E_DEV_DOWN); in sfp_stop()
2461 static int sfp_module_info(struct sfp *sfp, struct ethtool_modinfo *modinfo) in sfp_module_info() argument
2465 if (sfp->id.ext.sff8472_compliance && in sfp_module_info()
2466 !(sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE)) { in sfp_module_info()
2476 static int sfp_module_eeprom(struct sfp *sfp, struct ethtool_eeprom *ee, in sfp_module_eeprom() argument
2491 ret = sfp_read(sfp, false, first, data, len); in sfp_module_eeprom()
2503 ret = sfp_read(sfp, true, first, data, len); in sfp_module_eeprom()
2510 static int sfp_module_eeprom_by_page(struct sfp *sfp, in sfp_module_eeprom_by_page() argument
2530 return sfp_read(sfp, page->i2c_address == 0x51, page->offset, in sfp_module_eeprom_by_page()
2546 struct sfp *sfp = container_of(work, struct sfp, timeout.work); in sfp_timeout() local
2549 sfp_sm_event(sfp, SFP_E_TIMEOUT); in sfp_timeout()
2553 static void sfp_check_state(struct sfp *sfp) in sfp_check_state() argument
2557 mutex_lock(&sfp->st_mutex); in sfp_check_state()
2558 state = sfp_get_state(sfp); in sfp_check_state()
2559 changed = state ^ sfp->state; in sfp_check_state()
2560 if (sfp->tx_fault_ignore) in sfp_check_state()
2567 dev_dbg(sfp->dev, "%s %u -> %u\n", gpio_of_names[i], in sfp_check_state()
2568 !!(sfp->state & BIT(i)), !!(state & BIT(i))); in sfp_check_state()
2570 state |= sfp->state & (SFP_F_TX_DISABLE | SFP_F_RATE_SELECT); in sfp_check_state()
2571 sfp->state = state; in sfp_check_state()
2575 sfp_sm_event(sfp, state & SFP_F_PRESENT ? in sfp_check_state()
2579 sfp_sm_event(sfp, state & SFP_F_TX_FAULT ? in sfp_check_state()
2583 sfp_sm_event(sfp, state & SFP_F_LOS ? in sfp_check_state()
2586 mutex_unlock(&sfp->st_mutex); in sfp_check_state()
2591 struct sfp *sfp = data; in sfp_irq() local
2593 sfp_check_state(sfp); in sfp_irq()
2600 struct sfp *sfp = container_of(work, struct sfp, poll.work); in sfp_poll() local
2602 sfp_check_state(sfp); in sfp_poll()
2604 if (sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT) || in sfp_poll()
2605 sfp->need_poll) in sfp_poll()
2606 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_poll()
2609 static struct sfp *sfp_alloc(struct device *dev) in sfp_alloc()
2611 struct sfp *sfp; in sfp_alloc() local
2613 sfp = kzalloc(sizeof(*sfp), GFP_KERNEL); in sfp_alloc()
2614 if (!sfp) in sfp_alloc()
2617 sfp->dev = dev; in sfp_alloc()
2619 mutex_init(&sfp->sm_mutex); in sfp_alloc()
2620 mutex_init(&sfp->st_mutex); in sfp_alloc()
2621 INIT_DELAYED_WORK(&sfp->poll, sfp_poll); in sfp_alloc()
2622 INIT_DELAYED_WORK(&sfp->timeout, sfp_timeout); in sfp_alloc()
2624 sfp_hwmon_init(sfp); in sfp_alloc()
2626 return sfp; in sfp_alloc()
2631 struct sfp *sfp = data; in sfp_cleanup() local
2633 sfp_hwmon_exit(sfp); in sfp_cleanup()
2635 cancel_delayed_work_sync(&sfp->poll); in sfp_cleanup()
2636 cancel_delayed_work_sync(&sfp->timeout); in sfp_cleanup()
2637 if (sfp->i2c_mii) { in sfp_cleanup()
2638 mdiobus_unregister(sfp->i2c_mii); in sfp_cleanup()
2639 mdiobus_free(sfp->i2c_mii); in sfp_cleanup()
2641 if (sfp->i2c) in sfp_cleanup()
2642 i2c_put_adapter(sfp->i2c); in sfp_cleanup()
2643 kfree(sfp); in sfp_cleanup()
2651 struct sfp *sfp; in sfp_probe() local
2654 sfp = sfp_alloc(&pdev->dev); in sfp_probe()
2655 if (IS_ERR(sfp)) in sfp_probe()
2656 return PTR_ERR(sfp); in sfp_probe()
2658 platform_set_drvdata(pdev, sfp); in sfp_probe()
2660 err = devm_add_action_or_reset(sfp->dev, sfp_cleanup, sfp); in sfp_probe()
2664 sff = sfp->type = &sfp_data; in sfp_probe()
2675 sff = sfp->type = id->data; in sfp_probe()
2679 dev_err(sfp->dev, "missing 'i2c-bus' property\n"); in sfp_probe()
2707 err = sfp_i2c_configure(sfp, i2c); in sfp_probe()
2715 sfp->gpio[i] = devm_gpiod_get_optional(sfp->dev, in sfp_probe()
2717 if (IS_ERR(sfp->gpio[i])) in sfp_probe()
2718 return PTR_ERR(sfp->gpio[i]); in sfp_probe()
2721 sfp->state_hw_mask = SFP_F_PRESENT; in sfp_probe()
2723 sfp->get_state = sfp_gpio_get_state; in sfp_probe()
2724 sfp->set_state = sfp_gpio_set_state; in sfp_probe()
2727 if (!(sfp->gpio[GPIO_MODDEF0])) in sfp_probe()
2728 sfp->get_state = sff_gpio_get_state; in sfp_probe()
2731 &sfp->max_power_mW); in sfp_probe()
2732 if (!sfp->max_power_mW) in sfp_probe()
2733 sfp->max_power_mW = 1000; in sfp_probe()
2735 dev_info(sfp->dev, "Host maximum power %u.%uW\n", in sfp_probe()
2736 sfp->max_power_mW / 1000, (sfp->max_power_mW / 100) % 10); in sfp_probe()
2741 sfp->state = sfp_get_state(sfp) | SFP_F_TX_DISABLE; in sfp_probe()
2743 if (sfp->gpio[GPIO_RATE_SELECT] && in sfp_probe()
2744 gpiod_get_value_cansleep(sfp->gpio[GPIO_RATE_SELECT])) in sfp_probe()
2745 sfp->state |= SFP_F_RATE_SELECT; in sfp_probe()
2746 sfp_set_state(sfp, sfp->state); in sfp_probe()
2747 sfp_module_tx_disable(sfp); in sfp_probe()
2748 if (sfp->state & SFP_F_PRESENT) { in sfp_probe()
2750 sfp_sm_event(sfp, SFP_E_INSERT); in sfp_probe()
2755 if (gpio_flags[i] != GPIOD_IN || !sfp->gpio[i]) in sfp_probe()
2758 sfp->gpio_irq[i] = gpiod_to_irq(sfp->gpio[i]); in sfp_probe()
2759 if (sfp->gpio_irq[i] < 0) { in sfp_probe()
2760 sfp->gpio_irq[i] = 0; in sfp_probe()
2761 sfp->need_poll = true; in sfp_probe()
2765 sfp_irq_name = devm_kasprintf(sfp->dev, GFP_KERNEL, in sfp_probe()
2766 "%s-%s", dev_name(sfp->dev), in sfp_probe()
2772 err = devm_request_threaded_irq(sfp->dev, sfp->gpio_irq[i], in sfp_probe()
2777 sfp_irq_name, sfp); in sfp_probe()
2779 sfp->gpio_irq[i] = 0; in sfp_probe()
2780 sfp->need_poll = true; in sfp_probe()
2784 if (sfp->need_poll) in sfp_probe()
2785 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_probe()
2792 if (!sfp->gpio[GPIO_TX_DISABLE]) in sfp_probe()
2793 dev_warn(sfp->dev, in sfp_probe()
2794 "No tx_disable pin: SFP modules will always be emitting.\n"); in sfp_probe()
2796 sfp->sfp_bus = sfp_register_socket(sfp->dev, sfp, &sfp_module_ops); in sfp_probe()
2797 if (!sfp->sfp_bus) in sfp_probe()
2800 sfp_debugfs_init(sfp); in sfp_probe()
2807 struct sfp *sfp = platform_get_drvdata(pdev); in sfp_remove() local
2809 sfp_debugfs_exit(sfp); in sfp_remove()
2810 sfp_unregister_socket(sfp->sfp_bus); in sfp_remove()
2813 sfp_sm_event(sfp, SFP_E_REMOVE); in sfp_remove()
2821 struct sfp *sfp = platform_get_drvdata(pdev); in sfp_shutdown() local
2825 if (!sfp->gpio_irq[i]) in sfp_shutdown()
2828 devm_free_irq(sfp->dev, sfp->gpio_irq[i], sfp); in sfp_shutdown()
2831 cancel_delayed_work_sync(&sfp->poll); in sfp_shutdown()
2832 cancel_delayed_work_sync(&sfp->timeout); in sfp_shutdown()
2840 .name = "sfp",
2859 MODULE_ALIAS("platform:sfp");