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_fs_2_5gt(struct sfp *sfp) in sfp_fixup_fs_2_5gt() argument
390 sfp_fixup_rollball(sfp); in sfp_fixup_fs_2_5gt()
396 sfp->module_t_wait = msecs_to_jiffies(4000); in sfp_fixup_fs_2_5gt()
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_fs_2_5gt(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()
476 // Fiberstore SFP-10G-T doesn't identify as copper, uses the Rollball
479 SFP_QUIRK_F("FS", "SFP-10G-T", sfp_fixup_fs_10gt),
481 // Fiberstore SFP-2.5G-T uses Rollball protocol to talk to the PHY and
483 SFP_QUIRK_F("FS", "SFP-2.5G-T", sfp_fixup_fs_2_5gt),
512 // OEM SFP-GE-T is a 1000Base-T module with broken TX_FAULT indicator
513 SFP_QUIRK_F("OEM", "SFP-GE-T", sfp_fixup_ignore_tx_fault),
515 SFP_QUIRK_F("OEM", "SFP-10G-T", sfp_fixup_rollball_cc),
516 SFP_QUIRK_M("OEM", "SFP-2.5G-T", sfp_quirk_oem_2_5g),
566 static unsigned int sfp_gpio_get_state(struct sfp *sfp) in sfp_gpio_get_state() argument
571 if (gpio_flags[i] != GPIOD_IN || !sfp->gpio[i]) in sfp_gpio_get_state()
574 v = gpiod_get_value_cansleep(sfp->gpio[i]); in sfp_gpio_get_state()
582 static unsigned int sff_gpio_get_state(struct sfp *sfp) in sff_gpio_get_state() argument
584 return sfp_gpio_get_state(sfp) | SFP_F_PRESENT; in sff_gpio_get_state()
587 static void sfp_gpio_set_state(struct sfp *sfp, unsigned int state) in sfp_gpio_set_state() argument
593 drive = sfp->state_hw_drive; in sfp_gpio_set_state()
598 if (sfp->gpio[GPIO_TX_DISABLE]) { in sfp_gpio_set_state()
600 gpiod_direction_output(sfp->gpio[GPIO_TX_DISABLE], in sfp_gpio_set_state()
603 gpiod_direction_input(sfp->gpio[GPIO_TX_DISABLE]); in sfp_gpio_set_state()
606 if (sfp->gpio[GPIO_RS0]) { in sfp_gpio_set_state()
608 gpiod_direction_output(sfp->gpio[GPIO_RS0], in sfp_gpio_set_state()
611 gpiod_direction_input(sfp->gpio[GPIO_RS0]); in sfp_gpio_set_state()
614 if (sfp->gpio[GPIO_RS1]) { in sfp_gpio_set_state()
616 gpiod_direction_output(sfp->gpio[GPIO_RS1], in sfp_gpio_set_state()
619 gpiod_direction_input(sfp->gpio[GPIO_RS1]); in sfp_gpio_set_state()
623 static int sfp_i2c_read(struct sfp *sfp, bool a2, u8 dev_addr, void *buf, in sfp_i2c_read() argument
628 size_t block_size = sfp->i2c_block_size; in sfp_i2c_read()
648 ret = i2c_transfer(sfp->i2c, msgs, ARRAY_SIZE(msgs)); in sfp_i2c_read()
663 static int sfp_i2c_write(struct sfp *sfp, bool a2, u8 dev_addr, void *buf, in sfp_i2c_write() argument
680 ret = i2c_transfer(sfp->i2c, msgs, ARRAY_SIZE(msgs)); in sfp_i2c_write()
690 static int sfp_i2c_configure(struct sfp *sfp, struct i2c_adapter *i2c) in sfp_i2c_configure() argument
695 sfp->i2c = i2c; in sfp_i2c_configure()
696 sfp->read = sfp_i2c_read; in sfp_i2c_configure()
697 sfp->write = sfp_i2c_write; in sfp_i2c_configure()
702 static int sfp_i2c_mdiobus_create(struct sfp *sfp) in sfp_i2c_mdiobus_create() argument
707 i2c_mii = mdio_i2c_alloc(sfp->dev, sfp->i2c, sfp->mdio_protocol); in sfp_i2c_mdiobus_create()
711 i2c_mii->name = "SFP I2C Bus"; in sfp_i2c_mdiobus_create()
720 sfp->i2c_mii = i2c_mii; in sfp_i2c_mdiobus_create()
725 static void sfp_i2c_mdiobus_destroy(struct sfp *sfp) in sfp_i2c_mdiobus_destroy() argument
727 mdiobus_unregister(sfp->i2c_mii); in sfp_i2c_mdiobus_destroy()
728 sfp->i2c_mii = NULL; in sfp_i2c_mdiobus_destroy()
732 static int sfp_read(struct sfp *sfp, bool a2, u8 addr, void *buf, size_t len) in sfp_read() argument
734 return sfp->read(sfp, a2, addr, buf, len); in sfp_read()
737 static int sfp_write(struct sfp *sfp, bool a2, u8 addr, void *buf, size_t len) in sfp_write() argument
739 return sfp->write(sfp, a2, addr, buf, len); in sfp_write()
742 static int sfp_modify_u8(struct sfp *sfp, bool a2, u8 addr, u8 mask, u8 val) in sfp_modify_u8() argument
747 ret = sfp_read(sfp, a2, addr, &old, sizeof(old)); in sfp_modify_u8()
755 return sfp_write(sfp, a2, addr, &v, sizeof(v)); in sfp_modify_u8()
758 static unsigned int sfp_soft_get_state(struct sfp *sfp) in sfp_soft_get_state() argument
764 ret = sfp_read(sfp, true, SFP_STATUS, &status, sizeof(status)); in sfp_soft_get_state()
771 dev_err_ratelimited(sfp->dev, in sfp_soft_get_state()
772 "failed to read SFP soft status: %pe\n", in sfp_soft_get_state()
775 state = sfp->state; in sfp_soft_get_state()
778 return state & sfp->state_soft_mask; in sfp_soft_get_state()
781 static void sfp_soft_set_state(struct sfp *sfp, unsigned int state, in sfp_soft_set_state() argument
798 sfp_modify_u8(sfp, true, SFP_STATUS, mask, val); in sfp_soft_set_state()
807 sfp_modify_u8(sfp, true, SFP_EXT_STATUS, mask, val); in sfp_soft_set_state()
810 static void sfp_soft_start_poll(struct sfp *sfp) in sfp_soft_start_poll() argument
812 const struct sfp_eeprom_id *id = &sfp->id; in sfp_soft_start_poll()
822 mask |= sfp->rs_state_mask; in sfp_soft_start_poll()
824 mutex_lock(&sfp->st_mutex); in sfp_soft_start_poll()
826 sfp->state_soft_mask = ~sfp->state_hw_mask & ~sfp->state_ignore_mask & in sfp_soft_start_poll()
829 if (sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT) && in sfp_soft_start_poll()
830 !sfp->need_poll) in sfp_soft_start_poll()
831 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_soft_start_poll()
832 mutex_unlock(&sfp->st_mutex); in sfp_soft_start_poll()
835 static void sfp_soft_stop_poll(struct sfp *sfp) in sfp_soft_stop_poll() argument
837 mutex_lock(&sfp->st_mutex); in sfp_soft_stop_poll()
838 sfp->state_soft_mask = 0; in sfp_soft_stop_poll()
839 mutex_unlock(&sfp->st_mutex); in sfp_soft_stop_poll()
845 static unsigned int sfp_get_state(struct sfp *sfp) in sfp_get_state() argument
847 unsigned int soft = sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT); in sfp_get_state()
850 state = sfp->get_state(sfp) & sfp->state_hw_mask; in sfp_get_state()
852 state |= sfp_soft_get_state(sfp); in sfp_get_state()
860 static void sfp_set_state(struct sfp *sfp, unsigned int state) in sfp_set_state() argument
864 sfp->set_state(sfp, state); in sfp_set_state()
866 soft = sfp->state_soft_mask & SFP_F_OUTPUTS; in sfp_set_state()
868 sfp_soft_set_state(sfp, state, soft); in sfp_set_state()
871 static void sfp_mod_state(struct sfp *sfp, unsigned int mask, unsigned int set) in sfp_mod_state() argument
873 mutex_lock(&sfp->st_mutex); in sfp_mod_state()
874 sfp->state = (sfp->state & ~mask) | set; in sfp_mod_state()
875 sfp_set_state(sfp, sfp->state); in sfp_mod_state()
876 mutex_unlock(&sfp->st_mutex); in sfp_mod_state()
895 const struct sfp *sfp = data; in sfp_hwmon_is_visible() local
908 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
927 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
946 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
962 if (sfp->id.ext.diagmon & SFP_DIAGMON_EXT_CAL && in sfp_hwmon_is_visible()
974 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
988 static int sfp_hwmon_read_sensor(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_sensor() argument
993 err = sfp_read(sfp, true, reg, &val, sizeof(val)); in sfp_hwmon_read_sensor()
1007 static void sfp_hwmon_calibrate(struct sfp *sfp, unsigned int slope, int offset, in sfp_hwmon_calibrate() argument
1010 if (sfp->id.ext.diagmon & SFP_DIAGMON_EXT_CAL) in sfp_hwmon_calibrate()
1014 static void sfp_hwmon_calibrate_temp(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_temp() argument
1016 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_t_slope), in sfp_hwmon_calibrate_temp()
1017 be16_to_cpu(sfp->diag.cal_t_offset), value); in sfp_hwmon_calibrate_temp()
1025 static void sfp_hwmon_calibrate_vcc(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_vcc() argument
1027 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_v_slope), in sfp_hwmon_calibrate_vcc()
1028 be16_to_cpu(sfp->diag.cal_v_offset), value); in sfp_hwmon_calibrate_vcc()
1033 static void sfp_hwmon_calibrate_bias(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_bias() argument
1035 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_txi_slope), in sfp_hwmon_calibrate_bias()
1036 be16_to_cpu(sfp->diag.cal_txi_offset), value); in sfp_hwmon_calibrate_bias()
1041 static void sfp_hwmon_calibrate_tx_power(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_tx_power() argument
1043 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_txpwr_slope), in sfp_hwmon_calibrate_tx_power()
1044 be16_to_cpu(sfp->diag.cal_txpwr_offset), value); in sfp_hwmon_calibrate_tx_power()
1049 static int sfp_hwmon_read_temp(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_temp() argument
1053 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_temp()
1057 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_read_temp()
1062 static int sfp_hwmon_read_vcc(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_vcc() argument
1066 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_vcc()
1070 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_read_vcc()
1075 static int sfp_hwmon_read_bias(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_bias() argument
1079 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_bias()
1083 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_read_bias()
1088 static int sfp_hwmon_read_tx_power(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_tx_power() argument
1092 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_tx_power()
1096 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_read_tx_power()
1101 static int sfp_hwmon_read_rx_power(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_rx_power() argument
1105 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_rx_power()
1114 static int sfp_hwmon_temp(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_temp() argument
1121 return sfp_hwmon_read_temp(sfp, SFP_TEMP, value); in sfp_hwmon_temp()
1124 *value = be16_to_cpu(sfp->diag.temp_low_alarm); in sfp_hwmon_temp()
1125 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
1129 *value = be16_to_cpu(sfp->diag.temp_low_warn); in sfp_hwmon_temp()
1130 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
1133 *value = be16_to_cpu(sfp->diag.temp_high_warn); in sfp_hwmon_temp()
1134 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
1138 *value = be16_to_cpu(sfp->diag.temp_high_alarm); in sfp_hwmon_temp()
1139 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
1143 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_temp()
1151 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_temp()
1159 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_temp()
1167 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_temp()
1180 static int sfp_hwmon_vcc(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_vcc() argument
1187 return sfp_hwmon_read_vcc(sfp, SFP_VCC, value); in sfp_hwmon_vcc()
1190 *value = be16_to_cpu(sfp->diag.volt_low_alarm); in sfp_hwmon_vcc()
1191 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
1195 *value = be16_to_cpu(sfp->diag.volt_low_warn); in sfp_hwmon_vcc()
1196 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
1200 *value = be16_to_cpu(sfp->diag.volt_high_warn); in sfp_hwmon_vcc()
1201 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
1205 *value = be16_to_cpu(sfp->diag.volt_high_alarm); in sfp_hwmon_vcc()
1206 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
1210 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_vcc()
1218 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_vcc()
1226 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_vcc()
1234 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_vcc()
1247 static int sfp_hwmon_bias(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_bias() argument
1254 return sfp_hwmon_read_bias(sfp, SFP_TX_BIAS, value); in sfp_hwmon_bias()
1257 *value = be16_to_cpu(sfp->diag.bias_low_alarm); in sfp_hwmon_bias()
1258 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
1262 *value = be16_to_cpu(sfp->diag.bias_low_warn); in sfp_hwmon_bias()
1263 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
1267 *value = be16_to_cpu(sfp->diag.bias_high_warn); in sfp_hwmon_bias()
1268 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
1272 *value = be16_to_cpu(sfp->diag.bias_high_alarm); in sfp_hwmon_bias()
1273 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
1277 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_bias()
1285 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_bias()
1293 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_bias()
1301 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_bias()
1314 static int sfp_hwmon_tx_power(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_tx_power() argument
1321 return sfp_hwmon_read_tx_power(sfp, SFP_TX_POWER, value); in sfp_hwmon_tx_power()
1324 *value = be16_to_cpu(sfp->diag.txpwr_low_alarm); in sfp_hwmon_tx_power()
1325 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1329 *value = be16_to_cpu(sfp->diag.txpwr_low_warn); in sfp_hwmon_tx_power()
1330 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1334 *value = be16_to_cpu(sfp->diag.txpwr_high_warn); in sfp_hwmon_tx_power()
1335 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1339 *value = be16_to_cpu(sfp->diag.txpwr_high_alarm); in sfp_hwmon_tx_power()
1340 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1344 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1352 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1360 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1368 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1381 static int sfp_hwmon_rx_power(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_rx_power() argument
1388 return sfp_hwmon_read_rx_power(sfp, SFP_RX_POWER, value); in sfp_hwmon_rx_power()
1391 *value = be16_to_cpu(sfp->diag.rxpwr_low_alarm); in sfp_hwmon_rx_power()
1396 *value = be16_to_cpu(sfp->diag.rxpwr_low_warn); in sfp_hwmon_rx_power()
1401 *value = be16_to_cpu(sfp->diag.rxpwr_high_warn); in sfp_hwmon_rx_power()
1406 *value = be16_to_cpu(sfp->diag.rxpwr_high_alarm); in sfp_hwmon_rx_power()
1411 err = sfp_read(sfp, true, SFP_ALARM1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1419 err = sfp_read(sfp, true, SFP_WARN1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1427 err = sfp_read(sfp, true, SFP_WARN1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1435 err = sfp_read(sfp, true, SFP_ALARM1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1451 struct sfp *sfp = dev_get_drvdata(dev); in sfp_hwmon_read() local
1455 return sfp_hwmon_temp(sfp, attr, value); in sfp_hwmon_read()
1457 return sfp_hwmon_vcc(sfp, attr, value); in sfp_hwmon_read()
1459 return sfp_hwmon_bias(sfp, attr, value); in sfp_hwmon_read()
1463 return sfp_hwmon_tx_power(sfp, attr, value); in sfp_hwmon_read()
1465 return sfp_hwmon_rx_power(sfp, attr, value); in sfp_hwmon_read()
1582 struct sfp *sfp = container_of(work, struct sfp, hwmon_probe.work); in sfp_hwmon_probe() local
1591 if (sfp->i2c_block_size < 2) { in sfp_hwmon_probe()
1592 dev_info(sfp->dev, in sfp_hwmon_probe()
1594 dev_info(sfp->dev, in sfp_hwmon_probe()
1599 err = sfp_read(sfp, true, 0, &sfp->diag, sizeof(sfp->diag)); in sfp_hwmon_probe()
1601 if (sfp->hwmon_tries--) { in sfp_hwmon_probe()
1602 mod_delayed_work(system_wq, &sfp->hwmon_probe, in sfp_hwmon_probe()
1605 dev_warn(sfp->dev, "hwmon probe failed: %pe\n", in sfp_hwmon_probe()
1611 sfp->hwmon_name = hwmon_sanitize_name(dev_name(sfp->dev)); in sfp_hwmon_probe()
1612 if (IS_ERR(sfp->hwmon_name)) { in sfp_hwmon_probe()
1613 dev_err(sfp->dev, "out of memory for hwmon name\n"); in sfp_hwmon_probe()
1617 sfp->hwmon_dev = hwmon_device_register_with_info(sfp->dev, in sfp_hwmon_probe()
1618 sfp->hwmon_name, sfp, in sfp_hwmon_probe()
1621 if (IS_ERR(sfp->hwmon_dev)) in sfp_hwmon_probe()
1622 dev_err(sfp->dev, "failed to register hwmon device: %ld\n", in sfp_hwmon_probe()
1623 PTR_ERR(sfp->hwmon_dev)); in sfp_hwmon_probe()
1626 static int sfp_hwmon_insert(struct sfp *sfp) in sfp_hwmon_insert() argument
1628 if (sfp->have_a2 && sfp->id.ext.diagmon & SFP_DIAGMON_DDM) { in sfp_hwmon_insert()
1629 mod_delayed_work(system_wq, &sfp->hwmon_probe, 1); in sfp_hwmon_insert()
1630 sfp->hwmon_tries = R_PROBE_RETRY_SLOW; in sfp_hwmon_insert()
1636 static void sfp_hwmon_remove(struct sfp *sfp) in sfp_hwmon_remove() argument
1638 cancel_delayed_work_sync(&sfp->hwmon_probe); in sfp_hwmon_remove()
1639 if (!IS_ERR_OR_NULL(sfp->hwmon_dev)) { in sfp_hwmon_remove()
1640 hwmon_device_unregister(sfp->hwmon_dev); in sfp_hwmon_remove()
1641 sfp->hwmon_dev = NULL; in sfp_hwmon_remove()
1642 kfree(sfp->hwmon_name); in sfp_hwmon_remove()
1646 static int sfp_hwmon_init(struct sfp *sfp) in sfp_hwmon_init() argument
1648 INIT_DELAYED_WORK(&sfp->hwmon_probe, sfp_hwmon_probe); in sfp_hwmon_init()
1653 static void sfp_hwmon_exit(struct sfp *sfp) in sfp_hwmon_exit() argument
1655 cancel_delayed_work_sync(&sfp->hwmon_probe); in sfp_hwmon_exit()
1658 static int sfp_hwmon_insert(struct sfp *sfp) in sfp_hwmon_insert() argument
1663 static void sfp_hwmon_remove(struct sfp *sfp) in sfp_hwmon_remove() argument
1667 static int sfp_hwmon_init(struct sfp *sfp) in sfp_hwmon_init() argument
1672 static void sfp_hwmon_exit(struct sfp *sfp) in sfp_hwmon_exit() argument
1678 static void sfp_module_tx_disable(struct sfp *sfp) in sfp_module_tx_disable() argument
1680 dev_dbg(sfp->dev, "tx disable %u -> %u\n", in sfp_module_tx_disable()
1681 sfp->state & SFP_F_TX_DISABLE ? 1 : 0, 1); in sfp_module_tx_disable()
1682 sfp_mod_state(sfp, SFP_F_TX_DISABLE, SFP_F_TX_DISABLE); in sfp_module_tx_disable()
1685 static void sfp_module_tx_enable(struct sfp *sfp) in sfp_module_tx_enable() argument
1687 dev_dbg(sfp->dev, "tx disable %u -> %u\n", in sfp_module_tx_enable()
1688 sfp->state & SFP_F_TX_DISABLE ? 1 : 0, 0); in sfp_module_tx_enable()
1689 sfp_mod_state(sfp, SFP_F_TX_DISABLE, 0); in sfp_module_tx_enable()
1695 struct sfp *sfp = s->private; in sfp_debug_state_show() local
1698 mod_state_to_str(sfp->sm_mod_state)); in sfp_debug_state_show()
1700 R_PROBE_RETRY_INIT - sfp->sm_mod_tries_init, in sfp_debug_state_show()
1701 R_PROBE_RETRY_SLOW - sfp->sm_mod_tries); in sfp_debug_state_show()
1703 dev_state_to_str(sfp->sm_dev_state)); in sfp_debug_state_show()
1705 sm_state_to_str(sfp->sm_state)); in sfp_debug_state_show()
1707 sfp->sm_fault_retries); in sfp_debug_state_show()
1709 sfp->sm_phy_retries); in sfp_debug_state_show()
1710 seq_printf(s, "Signalling rate: %u kBd\n", sfp->rate_kbd); in sfp_debug_state_show()
1712 sfp->rs_threshold_kbd); in sfp_debug_state_show()
1713 seq_printf(s, "moddef0: %d\n", !!(sfp->state & SFP_F_PRESENT)); in sfp_debug_state_show()
1714 seq_printf(s, "rx_los: %d\n", !!(sfp->state & SFP_F_LOS)); in sfp_debug_state_show()
1715 seq_printf(s, "tx_fault: %d\n", !!(sfp->state & SFP_F_TX_FAULT)); in sfp_debug_state_show()
1716 seq_printf(s, "tx_disable: %d\n", !!(sfp->state & SFP_F_TX_DISABLE)); in sfp_debug_state_show()
1717 seq_printf(s, "rs0: %d\n", !!(sfp->state & SFP_F_RS0)); in sfp_debug_state_show()
1718 seq_printf(s, "rs1: %d\n", !!(sfp->state & SFP_F_RS1)); in sfp_debug_state_show()
1723 static void sfp_debugfs_init(struct sfp *sfp) in sfp_debugfs_init() argument
1725 sfp->debugfs_dir = debugfs_create_dir(dev_name(sfp->dev), NULL); in sfp_debugfs_init()
1727 debugfs_create_file("state", 0600, sfp->debugfs_dir, sfp, in sfp_debugfs_init()
1731 static void sfp_debugfs_exit(struct sfp *sfp) in sfp_debugfs_exit() argument
1733 debugfs_remove_recursive(sfp->debugfs_dir); in sfp_debugfs_exit()
1736 static void sfp_debugfs_init(struct sfp *sfp) in sfp_debugfs_init() argument
1740 static void sfp_debugfs_exit(struct sfp *sfp) in sfp_debugfs_exit() argument
1745 static void sfp_module_tx_fault_reset(struct sfp *sfp) in sfp_module_tx_fault_reset() argument
1749 mutex_lock(&sfp->st_mutex); in sfp_module_tx_fault_reset()
1750 state = sfp->state; in sfp_module_tx_fault_reset()
1752 sfp_set_state(sfp, state | SFP_F_TX_DISABLE); in sfp_module_tx_fault_reset()
1756 sfp_set_state(sfp, state); in sfp_module_tx_fault_reset()
1758 mutex_unlock(&sfp->st_mutex); in sfp_module_tx_fault_reset()
1761 /* SFP state machine */
1762 static void sfp_sm_set_timer(struct sfp *sfp, unsigned int timeout) in sfp_sm_set_timer() argument
1765 mod_delayed_work(system_power_efficient_wq, &sfp->timeout, in sfp_sm_set_timer()
1768 cancel_delayed_work(&sfp->timeout); in sfp_sm_set_timer()
1771 static void sfp_sm_next(struct sfp *sfp, unsigned int state, in sfp_sm_next() argument
1774 sfp->sm_state = state; in sfp_sm_next()
1775 sfp_sm_set_timer(sfp, timeout); in sfp_sm_next()
1778 static void sfp_sm_mod_next(struct sfp *sfp, unsigned int state, in sfp_sm_mod_next() argument
1781 sfp->sm_mod_state = state; in sfp_sm_mod_next()
1782 sfp_sm_set_timer(sfp, timeout); in sfp_sm_mod_next()
1785 static void sfp_sm_phy_detach(struct sfp *sfp) in sfp_sm_phy_detach() argument
1787 sfp_remove_phy(sfp->sfp_bus); in sfp_sm_phy_detach()
1788 phy_device_remove(sfp->mod_phy); in sfp_sm_phy_detach()
1789 phy_device_free(sfp->mod_phy); in sfp_sm_phy_detach()
1790 sfp->mod_phy = NULL; in sfp_sm_phy_detach()
1793 static int sfp_sm_probe_phy(struct sfp *sfp, int addr, bool is_c45) in sfp_sm_probe_phy() argument
1798 phy = get_phy_device(sfp->i2c_mii, addr, is_c45); in sfp_sm_probe_phy()
1802 dev_err(sfp->dev, "mdiobus scan returned %pe\n", phy); in sfp_sm_probe_phy()
1806 /* Mark this PHY as being on a SFP module */ in sfp_sm_probe_phy()
1812 dev_err(sfp->dev, "phy_device_register failed: %pe\n", in sfp_sm_probe_phy()
1817 err = sfp_add_phy(sfp->sfp_bus, phy); in sfp_sm_probe_phy()
1821 dev_err(sfp->dev, "sfp_add_phy failed: %pe\n", ERR_PTR(err)); in sfp_sm_probe_phy()
1825 sfp->mod_phy = phy; in sfp_sm_probe_phy()
1830 static void sfp_sm_link_up(struct sfp *sfp) in sfp_sm_link_up() argument
1832 sfp_link_up(sfp->sfp_bus); in sfp_sm_link_up()
1833 sfp_sm_next(sfp, SFP_S_LINK_UP, 0); in sfp_sm_link_up()
1836 static void sfp_sm_link_down(struct sfp *sfp) in sfp_sm_link_down() argument
1838 sfp_link_down(sfp->sfp_bus); in sfp_sm_link_down()
1841 static void sfp_sm_link_check_los(struct sfp *sfp) in sfp_sm_link_check_los() argument
1845 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_sm_link_check_los()
1853 los = !(sfp->state & SFP_F_LOS); in sfp_sm_link_check_los()
1855 los = !!(sfp->state & SFP_F_LOS); in sfp_sm_link_check_los()
1858 sfp_sm_next(sfp, SFP_S_WAIT_LOS, 0); in sfp_sm_link_check_los()
1860 sfp_sm_link_up(sfp); in sfp_sm_link_check_los()
1863 static bool sfp_los_event_active(struct sfp *sfp, unsigned int event) in sfp_los_event_active() argument
1867 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_los_event_active()
1873 static bool sfp_los_event_inactive(struct sfp *sfp, unsigned int event) in sfp_los_event_inactive() argument
1877 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_los_event_inactive()
1883 static void sfp_sm_fault(struct sfp *sfp, unsigned int next_state, bool warn) in sfp_sm_fault() argument
1885 if (sfp->sm_fault_retries && !--sfp->sm_fault_retries) { in sfp_sm_fault()
1886 dev_err(sfp->dev, in sfp_sm_fault()
1888 sfp_sm_next(sfp, SFP_S_TX_DISABLE, 0); in sfp_sm_fault()
1891 dev_err(sfp->dev, "module transmit fault indicated\n"); in sfp_sm_fault()
1893 sfp_sm_next(sfp, next_state, T_FAULT_RECOVER); in sfp_sm_fault()
1897 static int sfp_sm_add_mdio_bus(struct sfp *sfp) in sfp_sm_add_mdio_bus() argument
1899 if (sfp->mdio_protocol != MDIO_I2C_NONE) in sfp_sm_add_mdio_bus()
1900 return sfp_i2c_mdiobus_create(sfp); in sfp_sm_add_mdio_bus()
1905 /* Probe a SFP for a PHY device if the module supports copper - the PHY
1909 * Clause 22 copper SFP modules normally operate in Cisco SGMII mode with
1913 * Clause 45 copper SFP+ modules (10G) appear to switch their interface
1916 static int sfp_sm_probe_for_phy(struct sfp *sfp) in sfp_sm_probe_for_phy() argument
1920 switch (sfp->mdio_protocol) { in sfp_sm_probe_for_phy()
1925 err = sfp_sm_probe_phy(sfp, SFP_PHY_ADDR, false); in sfp_sm_probe_for_phy()
1929 err = sfp_sm_probe_phy(sfp, SFP_PHY_ADDR, true); in sfp_sm_probe_for_phy()
1933 err = sfp_sm_probe_phy(sfp, SFP_PHY_ADDR_ROLLBALL, true); in sfp_sm_probe_for_phy()
1940 static int sfp_module_parse_power(struct sfp *sfp) in sfp_module_parse_power() argument
1945 if (sfp->id.ext.sff8472_compliance >= SFP_SFF8472_COMPLIANCE_REV10_2 && in sfp_module_parse_power()
1946 sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_POWER_DECL)) in sfp_module_parse_power()
1949 if (sfp->id.ext.sff8472_compliance >= SFP_SFF8472_COMPLIANCE_REV11_4 && in sfp_module_parse_power()
1950 sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_HIGH_POWER_LEVEL)) in sfp_module_parse_power()
1955 sfp->module_power_mW = power_mW; in sfp_module_parse_power()
1959 supports_a2 = sfp->id.ext.sff8472_compliance != in sfp_module_parse_power()
1961 sfp->id.ext.diagmon & SFP_DIAGMON_DDM; in sfp_module_parse_power()
1963 if (power_mW > sfp->max_power_mW) { in sfp_module_parse_power()
1970 dev_err(sfp->dev, in sfp_module_parse_power()
1975 dev_warn(sfp->dev, in sfp_module_parse_power()
1994 if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE) { in sfp_module_parse_power()
1995 dev_warn(sfp->dev, in sfp_module_parse_power()
2001 sfp->module_power_mW = power_mW; in sfp_module_parse_power()
2006 static int sfp_sm_mod_hpower(struct sfp *sfp, bool enable) in sfp_sm_mod_hpower() argument
2010 err = sfp_modify_u8(sfp, true, SFP_EXT_STATUS, in sfp_sm_mod_hpower()
2014 dev_err(sfp->dev, "failed to %sable high power: %pe\n", in sfp_sm_mod_hpower()
2020 dev_info(sfp->dev, "Module switched to %u.%uW power level\n", in sfp_sm_mod_hpower()
2021 sfp->module_power_mW / 1000, in sfp_sm_mod_hpower()
2022 (sfp->module_power_mW / 100) % 10); in sfp_sm_mod_hpower()
2027 static void sfp_module_parse_rate_select(struct sfp *sfp) in sfp_module_parse_rate_select() argument
2031 sfp->rs_threshold_kbd = 0; in sfp_module_parse_rate_select()
2032 sfp->rs_state_mask = 0; in sfp_module_parse_rate_select()
2034 if (!(sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_RATE_SELECT))) in sfp_module_parse_rate_select()
2044 sfp->rs_state_mask = SFP_F_RS0; in sfp_module_parse_rate_select()
2045 sfp->rs_threshold_kbd = 1594; in sfp_module_parse_rate_select()
2055 rate_id = sfp->id.base.rate_id; in sfp_module_parse_rate_select()
2064 if (sfp->id.ext.sff8472_compliance >= SFP_SFF8472_COMPLIANCE_REV10_2 && in sfp_module_parse_rate_select()
2065 sfp->id.ext.sff8472_compliance < SFP_SFF8472_COMPLIANCE_REV11_0 && in sfp_module_parse_rate_select()
2074 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_APP_SELECT_SFF8079)) { in sfp_module_parse_rate_select()
2080 sfp->rs_threshold_kbd = 2125 - 1; in sfp_module_parse_rate_select()
2081 sfp->rs_state_mask = SFP_F_RS0; in sfp_module_parse_rate_select()
2087 if (sfp->id.ext.sff8472_compliance <= SFP_SFF8472_COMPLIANCE_REV9_5) in sfp_module_parse_rate_select()
2095 sfp->rs_threshold_kbd = 4250; in sfp_module_parse_rate_select()
2096 sfp->rs_state_mask = SFP_F_RS0; in sfp_module_parse_rate_select()
2100 sfp->rs_threshold_kbd = 4250; in sfp_module_parse_rate_select()
2101 sfp->rs_state_mask = SFP_F_RS1; in sfp_module_parse_rate_select()
2105 sfp->rs_threshold_kbd = 4250; in sfp_module_parse_rate_select()
2106 sfp->rs_state_mask = SFP_F_RS0 | SFP_F_RS1; in sfp_module_parse_rate_select()
2110 sfp->rs_threshold_kbd = 9000; in sfp_module_parse_rate_select()
2111 sfp->rs_state_mask = SFP_F_RS0 | SFP_F_RS1; in sfp_module_parse_rate_select()
2127 static bool sfp_id_needs_byte_io(struct sfp *sfp, void *buf, size_t len) in sfp_id_needs_byte_io() argument
2129 size_t i, block_size = sfp->i2c_block_size; in sfp_id_needs_byte_io()
2142 static int sfp_cotsworks_fixup_check(struct sfp *sfp, struct sfp_eeprom_id *id) in sfp_cotsworks_fixup_check() argument
2150 dev_warn(sfp->dev, "Rewriting fiber module EEPROM with corrected values\n"); in sfp_cotsworks_fixup_check()
2154 err = sfp_write(sfp, false, SFP_PHYS_ID, &id->base, 3); in sfp_cotsworks_fixup_check()
2156 dev_err(sfp->dev, in sfp_cotsworks_fixup_check()
2167 err = sfp_write(sfp, false, SFP_CC_BASE, &check, 1); in sfp_cotsworks_fixup_check()
2169 dev_err(sfp->dev, in sfp_cotsworks_fixup_check()
2178 static int sfp_module_parse_sff8472(struct sfp *sfp) in sfp_module_parse_sff8472() argument
2181 if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE) in sfp_module_parse_sff8472()
2182 dev_warn(sfp->dev, in sfp_module_parse_sff8472()
2185 sfp->have_a2 = true; in sfp_module_parse_sff8472()
2190 static int sfp_sm_mod_probe(struct sfp *sfp, bool report) in sfp_sm_mod_probe() argument
2192 /* SFP module inserted - read I2C data */ in sfp_sm_mod_probe()
2200 sfp->i2c_block_size = SFP_EEPROM_BLOCK_SIZE; in sfp_sm_mod_probe()
2202 ret = sfp_read(sfp, false, 0, &id.base, sizeof(id.base)); in sfp_sm_mod_probe()
2205 dev_err(sfp->dev, "failed to read EEPROM: %pe\n", in sfp_sm_mod_probe()
2211 dev_err(sfp->dev, "EEPROM short read: %pe\n", ERR_PTR(ret)); in sfp_sm_mod_probe()
2215 /* Some SFP modules (e.g. Nokia 3FE46541AA) lock up if read from in sfp_sm_mod_probe()
2221 if (sfp_id_needs_byte_io(sfp, &id.base, sizeof(id.base))) { in sfp_sm_mod_probe()
2222 dev_info(sfp->dev, in sfp_sm_mod_probe()
2224 dev_info(sfp->dev, in sfp_sm_mod_probe()
2226 sfp->i2c_block_size = 1; in sfp_sm_mod_probe()
2228 ret = sfp_read(sfp, false, 0, &id.base, sizeof(id.base)); in sfp_sm_mod_probe()
2231 dev_err(sfp->dev, in sfp_sm_mod_probe()
2238 dev_err(sfp->dev, "EEPROM short read: %pe\n", in sfp_sm_mod_probe()
2256 ret = sfp_cotsworks_fixup_check(sfp, &id); in sfp_sm_mod_probe()
2265 dev_warn(sfp->dev, in sfp_sm_mod_probe()
2269 dev_err(sfp->dev, in sfp_sm_mod_probe()
2272 print_hex_dump(KERN_ERR, "sfp EE: ", DUMP_PREFIX_OFFSET, in sfp_sm_mod_probe()
2278 ret = sfp_read(sfp, false, SFP_CC_BASE + 1, &id.ext, sizeof(id.ext)); in sfp_sm_mod_probe()
2281 dev_err(sfp->dev, "failed to read EEPROM: %pe\n", in sfp_sm_mod_probe()
2287 dev_err(sfp->dev, "EEPROM short read: %pe\n", ERR_PTR(ret)); in sfp_sm_mod_probe()
2294 dev_warn(sfp->dev, in sfp_sm_mod_probe()
2298 dev_err(sfp->dev, in sfp_sm_mod_probe()
2301 print_hex_dump(KERN_ERR, "sfp EE: ", DUMP_PREFIX_OFFSET, in sfp_sm_mod_probe()
2307 sfp->id = id; in sfp_sm_mod_probe()
2309 dev_info(sfp->dev, "module %.*s %.*s rev %.*s sn %.*s dc %.*s\n", in sfp_sm_mod_probe()
2317 if (!sfp->type->module_supported(&id)) { in sfp_sm_mod_probe()
2318 dev_err(sfp->dev, in sfp_sm_mod_probe()
2320 sfp->id.base.phys_id, sfp->id.base.phys_ext_id); in sfp_sm_mod_probe()
2324 if (sfp->id.ext.sff8472_compliance != SFP_SFF8472_COMPLIANCE_NONE) { in sfp_sm_mod_probe()
2325 ret = sfp_module_parse_sff8472(sfp); in sfp_sm_mod_probe()
2331 ret = sfp_module_parse_power(sfp); in sfp_sm_mod_probe()
2335 sfp_module_parse_rate_select(sfp); in sfp_sm_mod_probe()
2338 if (sfp->gpio[GPIO_TX_DISABLE]) in sfp_sm_mod_probe()
2340 if (sfp->gpio[GPIO_TX_FAULT]) in sfp_sm_mod_probe()
2342 if (sfp->gpio[GPIO_LOS]) in sfp_sm_mod_probe()
2344 if (sfp->gpio[GPIO_RS0]) in sfp_sm_mod_probe()
2346 if (sfp->gpio[GPIO_RS1]) in sfp_sm_mod_probe()
2349 sfp->module_t_start_up = T_START_UP; in sfp_sm_mod_probe()
2350 sfp->module_t_wait = T_WAIT; in sfp_sm_mod_probe()
2351 sfp->phy_t_retry = T_PHY_RETRY; in sfp_sm_mod_probe()
2353 sfp->state_ignore_mask = 0; in sfp_sm_mod_probe()
2355 if (sfp->id.base.extended_cc == SFF8024_ECC_10GBASE_T_SFI || in sfp_sm_mod_probe()
2356 sfp->id.base.extended_cc == SFF8024_ECC_10GBASE_T_SR || in sfp_sm_mod_probe()
2357 sfp->id.base.extended_cc == SFF8024_ECC_5GBASE_T || in sfp_sm_mod_probe()
2358 sfp->id.base.extended_cc == SFF8024_ECC_2_5GBASE_T) in sfp_sm_mod_probe()
2359 sfp->mdio_protocol = MDIO_I2C_C45; in sfp_sm_mod_probe()
2360 else if (sfp->id.base.e1000_base_t) in sfp_sm_mod_probe()
2361 sfp->mdio_protocol = MDIO_I2C_MARVELL_C22; in sfp_sm_mod_probe()
2363 sfp->mdio_protocol = MDIO_I2C_NONE; in sfp_sm_mod_probe()
2365 sfp->quirk = sfp_lookup_quirk(&id); in sfp_sm_mod_probe()
2367 mutex_lock(&sfp->st_mutex); in sfp_sm_mod_probe()
2369 sfp->state_hw_mask = mask; in sfp_sm_mod_probe()
2372 sfp->state_hw_drive |= sfp->rs_state_mask; in sfp_sm_mod_probe()
2374 if (sfp->quirk && sfp->quirk->fixup) in sfp_sm_mod_probe()
2375 sfp->quirk->fixup(sfp); in sfp_sm_mod_probe()
2377 sfp->state_hw_mask &= ~sfp->state_ignore_mask; in sfp_sm_mod_probe()
2378 mutex_unlock(&sfp->st_mutex); in sfp_sm_mod_probe()
2383 static void sfp_sm_mod_remove(struct sfp *sfp) in sfp_sm_mod_remove() argument
2385 if (sfp->sm_mod_state > SFP_MOD_WAITDEV) in sfp_sm_mod_remove()
2386 sfp_module_remove(sfp->sfp_bus); in sfp_sm_mod_remove()
2388 sfp_hwmon_remove(sfp); in sfp_sm_mod_remove()
2390 memset(&sfp->id, 0, sizeof(sfp->id)); in sfp_sm_mod_remove()
2391 sfp->module_power_mW = 0; in sfp_sm_mod_remove()
2392 sfp->state_hw_drive = SFP_F_TX_DISABLE; in sfp_sm_mod_remove()
2393 sfp->have_a2 = false; in sfp_sm_mod_remove()
2395 dev_info(sfp->dev, "module removed\n"); in sfp_sm_mod_remove()
2399 static void sfp_sm_device(struct sfp *sfp, unsigned int event) in sfp_sm_device() argument
2401 switch (sfp->sm_dev_state) { in sfp_sm_device()
2404 sfp->sm_dev_state = SFP_DEV_DOWN; in sfp_sm_device()
2409 sfp->sm_dev_state = SFP_DEV_DETACHED; in sfp_sm_device()
2411 sfp->sm_dev_state = SFP_DEV_UP; in sfp_sm_device()
2416 sfp->sm_dev_state = SFP_DEV_DETACHED; in sfp_sm_device()
2418 sfp->sm_dev_state = SFP_DEV_DOWN; in sfp_sm_device()
2426 static void sfp_sm_module(struct sfp *sfp, unsigned int event) in sfp_sm_module() argument
2432 sfp_sm_mod_remove(sfp); in sfp_sm_module()
2433 sfp_sm_mod_next(sfp, SFP_MOD_EMPTY, 0); in sfp_sm_module()
2438 if (sfp->sm_dev_state < SFP_DEV_DOWN && in sfp_sm_module()
2439 sfp->sm_mod_state > SFP_MOD_WAITDEV) { in sfp_sm_module()
2440 if (sfp->module_power_mW > 1000 && in sfp_sm_module()
2441 sfp->sm_mod_state > SFP_MOD_HPOWER) in sfp_sm_module()
2442 sfp_sm_mod_hpower(sfp, false); in sfp_sm_module()
2443 sfp_sm_mod_next(sfp, SFP_MOD_WAITDEV, 0); in sfp_sm_module()
2447 switch (sfp->sm_mod_state) { in sfp_sm_module()
2450 sfp_sm_mod_next(sfp, SFP_MOD_PROBE, T_SERIAL); in sfp_sm_module()
2451 sfp->sm_mod_tries_init = R_PROBE_RETRY_INIT; in sfp_sm_module()
2452 sfp->sm_mod_tries = R_PROBE_RETRY_SLOW; in sfp_sm_module()
2461 err = sfp_sm_mod_probe(sfp, sfp->sm_mod_tries == 1); in sfp_sm_module()
2463 if (sfp->sm_mod_tries_init && in sfp_sm_module()
2464 --sfp->sm_mod_tries_init) { in sfp_sm_module()
2465 sfp_sm_set_timer(sfp, T_PROBE_RETRY_INIT); in sfp_sm_module()
2467 } else if (sfp->sm_mod_tries && --sfp->sm_mod_tries) { in sfp_sm_module()
2468 if (sfp->sm_mod_tries == R_PROBE_RETRY_SLOW - 1) in sfp_sm_module()
2469 dev_warn(sfp->dev, in sfp_sm_module()
2471 sfp_sm_set_timer(sfp, T_PROBE_RETRY_SLOW); in sfp_sm_module()
2476 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
2483 mod_delayed_work(system_wq, &sfp->poll, 1); in sfp_sm_module()
2485 err = sfp_hwmon_insert(sfp); in sfp_sm_module()
2487 dev_warn(sfp->dev, "hwmon probe failed: %pe\n", in sfp_sm_module()
2490 sfp_sm_mod_next(sfp, SFP_MOD_WAITDEV, 0); in sfp_sm_module()
2494 if (sfp->sm_dev_state < SFP_DEV_DOWN) in sfp_sm_module()
2498 err = sfp_module_insert(sfp->sfp_bus, &sfp->id, in sfp_sm_module()
2499 sfp->quirk); in sfp_sm_module()
2501 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
2506 if (sfp->module_power_mW <= 1000) in sfp_sm_module()
2509 sfp_sm_mod_next(sfp, SFP_MOD_HPOWER, 0); in sfp_sm_module()
2513 err = sfp_sm_mod_hpower(sfp, true); in sfp_sm_module()
2516 sfp_module_remove(sfp->sfp_bus); in sfp_sm_module()
2517 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
2519 sfp_sm_set_timer(sfp, T_PROBE_RETRY_INIT); in sfp_sm_module()
2524 sfp_sm_mod_next(sfp, SFP_MOD_WAITPWR, T_HPOWER_LEVEL); in sfp_sm_module()
2533 sfp_sm_mod_next(sfp, SFP_MOD_PRESENT, 0); in sfp_sm_module()
2542 static void sfp_sm_main(struct sfp *sfp, unsigned int event) in sfp_sm_main() argument
2548 if (sfp->sm_state != SFP_S_DOWN && in sfp_sm_main()
2549 (sfp->sm_mod_state != SFP_MOD_PRESENT || in sfp_sm_main()
2550 sfp->sm_dev_state != SFP_DEV_UP)) { in sfp_sm_main()
2551 if (sfp->sm_state == SFP_S_LINK_UP && in sfp_sm_main()
2552 sfp->sm_dev_state == SFP_DEV_UP) in sfp_sm_main()
2553 sfp_sm_link_down(sfp); in sfp_sm_main()
2554 if (sfp->sm_state > SFP_S_INIT) in sfp_sm_main()
2555 sfp_module_stop(sfp->sfp_bus); in sfp_sm_main()
2556 if (sfp->mod_phy) in sfp_sm_main()
2557 sfp_sm_phy_detach(sfp); in sfp_sm_main()
2558 if (sfp->i2c_mii) in sfp_sm_main()
2559 sfp_i2c_mdiobus_destroy(sfp); in sfp_sm_main()
2560 sfp_module_tx_disable(sfp); in sfp_sm_main()
2561 sfp_soft_stop_poll(sfp); in sfp_sm_main()
2562 sfp_sm_next(sfp, SFP_S_DOWN, 0); in sfp_sm_main()
2567 switch (sfp->sm_state) { in sfp_sm_main()
2569 if (sfp->sm_mod_state != SFP_MOD_PRESENT || in sfp_sm_main()
2570 sfp->sm_dev_state != SFP_DEV_UP) in sfp_sm_main()
2577 if (sfp->have_a2) in sfp_sm_main()
2578 sfp_soft_start_poll(sfp); in sfp_sm_main()
2580 sfp_module_tx_enable(sfp); in sfp_sm_main()
2583 sfp->sm_fault_retries = N_FAULT_INIT; in sfp_sm_main()
2590 sfp_sm_next(sfp, SFP_S_WAIT, sfp->module_t_wait); in sfp_sm_main()
2597 if (sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2603 timeout = sfp->module_t_start_up; in sfp_sm_main()
2604 if (timeout > sfp->module_t_wait) in sfp_sm_main()
2605 timeout -= sfp->module_t_wait; in sfp_sm_main()
2609 sfp_sm_next(sfp, SFP_S_INIT, timeout); in sfp_sm_main()
2619 if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2623 sfp_sm_fault(sfp, SFP_S_INIT_TX_FAULT, in sfp_sm_main()
2624 sfp->sm_fault_retries == N_FAULT_INIT); in sfp_sm_main()
2628 ret = sfp_sm_add_mdio_bus(sfp); in sfp_sm_main()
2630 sfp_sm_next(sfp, SFP_S_FAIL, 0); in sfp_sm_main()
2633 sfp->sm_phy_retries = R_PHY_RETRY; in sfp_sm_main()
2645 ret = sfp_sm_probe_for_phy(sfp); in sfp_sm_main()
2647 if (--sfp->sm_phy_retries) { in sfp_sm_main()
2648 sfp_sm_next(sfp, SFP_S_INIT_PHY, in sfp_sm_main()
2649 sfp->phy_t_retry); in sfp_sm_main()
2650 dev_dbg(sfp->dev, in sfp_sm_main()
2652 sfp->sm_phy_retries); in sfp_sm_main()
2655 dev_info(sfp->dev, "no PHY detected\n"); in sfp_sm_main()
2658 sfp_sm_next(sfp, SFP_S_FAIL, 0); in sfp_sm_main()
2661 if (sfp_module_start(sfp->sfp_bus)) { in sfp_sm_main()
2662 sfp_sm_next(sfp, SFP_S_FAIL, 0); in sfp_sm_main()
2665 sfp_sm_link_check_los(sfp); in sfp_sm_main()
2668 sfp->sm_fault_retries = N_FAULT; in sfp_sm_main()
2673 sfp_module_tx_fault_reset(sfp); in sfp_sm_main()
2674 sfp_sm_next(sfp, SFP_S_INIT, sfp->module_t_start_up); in sfp_sm_main()
2680 sfp_sm_fault(sfp, SFP_S_TX_FAULT, true); in sfp_sm_main()
2681 else if (sfp_los_event_inactive(sfp, event)) in sfp_sm_main()
2682 sfp_sm_link_up(sfp); in sfp_sm_main()
2687 sfp_sm_link_down(sfp); in sfp_sm_main()
2688 sfp_sm_fault(sfp, SFP_S_TX_FAULT, true); in sfp_sm_main()
2689 } else if (sfp_los_event_active(sfp, event)) { in sfp_sm_main()
2690 sfp_sm_link_down(sfp); in sfp_sm_main()
2691 sfp_sm_next(sfp, SFP_S_WAIT_LOS, 0); in sfp_sm_main()
2697 sfp_module_tx_fault_reset(sfp); in sfp_sm_main()
2698 sfp_sm_next(sfp, SFP_S_REINIT, sfp->module_t_start_up); in sfp_sm_main()
2703 if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2704 sfp_sm_fault(sfp, SFP_S_TX_FAULT, false); in sfp_sm_main()
2706 dev_info(sfp->dev, "module transmit fault recovered\n"); in sfp_sm_main()
2707 sfp_sm_link_check_los(sfp); in sfp_sm_main()
2716 static void __sfp_sm_event(struct sfp *sfp, unsigned int event) in __sfp_sm_event() argument
2718 dev_dbg(sfp->dev, "SM: enter %s:%s:%s event %s\n", in __sfp_sm_event()
2719 mod_state_to_str(sfp->sm_mod_state), in __sfp_sm_event()
2720 dev_state_to_str(sfp->sm_dev_state), in __sfp_sm_event()
2721 sm_state_to_str(sfp->sm_state), in __sfp_sm_event()
2724 sfp_sm_device(sfp, event); in __sfp_sm_event()
2725 sfp_sm_module(sfp, event); in __sfp_sm_event()
2726 sfp_sm_main(sfp, event); in __sfp_sm_event()
2728 dev_dbg(sfp->dev, "SM: exit %s:%s:%s\n", in __sfp_sm_event()
2729 mod_state_to_str(sfp->sm_mod_state), in __sfp_sm_event()
2730 dev_state_to_str(sfp->sm_dev_state), in __sfp_sm_event()
2731 sm_state_to_str(sfp->sm_state)); in __sfp_sm_event()
2734 static void sfp_sm_event(struct sfp *sfp, unsigned int event) in sfp_sm_event() argument
2736 mutex_lock(&sfp->sm_mutex); in sfp_sm_event()
2737 __sfp_sm_event(sfp, event); in sfp_sm_event()
2738 mutex_unlock(&sfp->sm_mutex); in sfp_sm_event()
2741 static void sfp_attach(struct sfp *sfp) in sfp_attach() argument
2743 sfp_sm_event(sfp, SFP_E_DEV_ATTACH); in sfp_attach()
2746 static void sfp_detach(struct sfp *sfp) in sfp_detach() argument
2748 sfp_sm_event(sfp, SFP_E_DEV_DETACH); in sfp_detach()
2751 static void sfp_start(struct sfp *sfp) in sfp_start() argument
2753 sfp_sm_event(sfp, SFP_E_DEV_UP); in sfp_start()
2756 static void sfp_stop(struct sfp *sfp) in sfp_stop() argument
2758 sfp_sm_event(sfp, SFP_E_DEV_DOWN); in sfp_stop()
2761 static void sfp_set_signal_rate(struct sfp *sfp, unsigned int rate_kbd) in sfp_set_signal_rate() argument
2765 sfp->rate_kbd = rate_kbd; in sfp_set_signal_rate()
2767 if (rate_kbd > sfp->rs_threshold_kbd) in sfp_set_signal_rate()
2768 set = sfp->rs_state_mask; in sfp_set_signal_rate()
2772 sfp_mod_state(sfp, SFP_F_RS0 | SFP_F_RS1, set); in sfp_set_signal_rate()
2775 static int sfp_module_info(struct sfp *sfp, struct ethtool_modinfo *modinfo) in sfp_module_info() argument
2779 if (sfp->id.ext.sff8472_compliance && in sfp_module_info()
2780 !(sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE)) { in sfp_module_info()
2790 static int sfp_module_eeprom(struct sfp *sfp, struct ethtool_eeprom *ee, in sfp_module_eeprom() argument
2796 if (!(sfp->state & SFP_F_PRESENT)) in sfp_module_eeprom()
2808 ret = sfp_read(sfp, false, first, data, len); in sfp_module_eeprom()
2820 ret = sfp_read(sfp, true, first, data, len); in sfp_module_eeprom()
2827 static int sfp_module_eeprom_by_page(struct sfp *sfp, in sfp_module_eeprom_by_page() argument
2831 if (!(sfp->state & SFP_F_PRESENT)) in sfp_module_eeprom_by_page()
2850 return sfp_read(sfp, page->i2c_address == 0x51, page->offset, in sfp_module_eeprom_by_page()
2867 struct sfp *sfp = container_of(work, struct sfp, timeout.work); in sfp_timeout() local
2870 sfp_sm_event(sfp, SFP_E_TIMEOUT); in sfp_timeout()
2874 static void sfp_check_state(struct sfp *sfp) in sfp_check_state() argument
2879 mutex_lock(&sfp->st_mutex); in sfp_check_state()
2880 state = sfp_get_state(sfp); in sfp_check_state()
2881 changed = state ^ sfp->state; in sfp_check_state()
2886 dev_dbg(sfp->dev, "%s %u -> %u\n", gpio_names[i], in sfp_check_state()
2887 !!(sfp->state & BIT(i)), !!(state & BIT(i))); in sfp_check_state()
2889 state |= sfp->state & SFP_F_OUTPUTS; in sfp_check_state()
2890 sfp->state = state; in sfp_check_state()
2891 mutex_unlock(&sfp->st_mutex); in sfp_check_state()
2893 mutex_lock(&sfp->sm_mutex); in sfp_check_state()
2895 __sfp_sm_event(sfp, state & SFP_F_PRESENT ? in sfp_check_state()
2899 __sfp_sm_event(sfp, state & SFP_F_TX_FAULT ? in sfp_check_state()
2903 __sfp_sm_event(sfp, state & SFP_F_LOS ? in sfp_check_state()
2905 mutex_unlock(&sfp->sm_mutex); in sfp_check_state()
2911 struct sfp *sfp = data; in sfp_irq() local
2913 sfp_check_state(sfp); in sfp_irq()
2920 struct sfp *sfp = container_of(work, struct sfp, poll.work); in sfp_poll() local
2922 sfp_check_state(sfp); in sfp_poll()
2926 if (sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT) || in sfp_poll()
2927 sfp->need_poll) in sfp_poll()
2928 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_poll()
2931 static struct sfp *sfp_alloc(struct device *dev) in sfp_alloc()
2933 struct sfp *sfp; in sfp_alloc() local
2935 sfp = kzalloc(sizeof(*sfp), GFP_KERNEL); in sfp_alloc()
2936 if (!sfp) in sfp_alloc()
2939 sfp->dev = dev; in sfp_alloc()
2940 sfp->i2c_block_size = SFP_EEPROM_BLOCK_SIZE; in sfp_alloc()
2942 mutex_init(&sfp->sm_mutex); in sfp_alloc()
2943 mutex_init(&sfp->st_mutex); in sfp_alloc()
2944 INIT_DELAYED_WORK(&sfp->poll, sfp_poll); in sfp_alloc()
2945 INIT_DELAYED_WORK(&sfp->timeout, sfp_timeout); in sfp_alloc()
2947 sfp_hwmon_init(sfp); in sfp_alloc()
2949 return sfp; in sfp_alloc()
2954 struct sfp *sfp = data; in sfp_cleanup() local
2956 sfp_hwmon_exit(sfp); in sfp_cleanup()
2958 cancel_delayed_work_sync(&sfp->poll); in sfp_cleanup()
2959 cancel_delayed_work_sync(&sfp->timeout); in sfp_cleanup()
2960 if (sfp->i2c_mii) { in sfp_cleanup()
2961 mdiobus_unregister(sfp->i2c_mii); in sfp_cleanup()
2962 mdiobus_free(sfp->i2c_mii); in sfp_cleanup()
2964 if (sfp->i2c) in sfp_cleanup()
2965 i2c_put_adapter(sfp->i2c); in sfp_cleanup()
2966 kfree(sfp); in sfp_cleanup()
2969 static int sfp_i2c_get(struct sfp *sfp) in sfp_i2c_get() argument
2975 h = fwnode_find_reference(dev_fwnode(sfp->dev), "i2c-bus", 0); in sfp_i2c_get()
2977 dev_err(sfp->dev, "missing 'i2c-bus' property\n"); in sfp_i2c_get()
2987 err = sfp_i2c_configure(sfp, i2c); in sfp_i2c_get()
2999 struct sfp *sfp; in sfp_probe() local
3002 sfp = sfp_alloc(&pdev->dev); in sfp_probe()
3003 if (IS_ERR(sfp)) in sfp_probe()
3004 return PTR_ERR(sfp); in sfp_probe()
3006 platform_set_drvdata(pdev, sfp); in sfp_probe()
3008 err = devm_add_action_or_reset(sfp->dev, sfp_cleanup, sfp); in sfp_probe()
3012 sff = device_get_match_data(sfp->dev); in sfp_probe()
3016 sfp->type = sff; in sfp_probe()
3018 err = sfp_i2c_get(sfp); in sfp_probe()
3024 sfp->gpio[i] = devm_gpiod_get_optional(sfp->dev, in sfp_probe()
3026 if (IS_ERR(sfp->gpio[i])) in sfp_probe()
3027 return PTR_ERR(sfp->gpio[i]); in sfp_probe()
3030 sfp->state_hw_mask = SFP_F_PRESENT; in sfp_probe()
3031 sfp->state_hw_drive = SFP_F_TX_DISABLE; in sfp_probe()
3033 sfp->get_state = sfp_gpio_get_state; in sfp_probe()
3034 sfp->set_state = sfp_gpio_set_state; in sfp_probe()
3037 if (!(sfp->gpio[GPIO_MODDEF0])) in sfp_probe()
3038 sfp->get_state = sff_gpio_get_state; in sfp_probe()
3041 &sfp->max_power_mW); in sfp_probe()
3042 if (sfp->max_power_mW < 1000) { in sfp_probe()
3043 if (sfp->max_power_mW) in sfp_probe()
3044 dev_warn(sfp->dev, in sfp_probe()
3046 sfp->max_power_mW = 1000; in sfp_probe()
3049 dev_info(sfp->dev, "Host maximum power %u.%uW\n", in sfp_probe()
3050 sfp->max_power_mW / 1000, (sfp->max_power_mW / 100) % 10); in sfp_probe()
3055 sfp->state = sfp_get_state(sfp) | SFP_F_TX_DISABLE; in sfp_probe()
3057 if (sfp->gpio[GPIO_RS0] && in sfp_probe()
3058 gpiod_get_value_cansleep(sfp->gpio[GPIO_RS0])) in sfp_probe()
3059 sfp->state |= SFP_F_RS0; in sfp_probe()
3060 sfp_set_state(sfp, sfp->state); in sfp_probe()
3061 sfp_module_tx_disable(sfp); in sfp_probe()
3062 if (sfp->state & SFP_F_PRESENT) { in sfp_probe()
3064 sfp_sm_event(sfp, SFP_E_INSERT); in sfp_probe()
3069 if (gpio_flags[i] != GPIOD_IN || !sfp->gpio[i]) in sfp_probe()
3072 sfp->gpio_irq[i] = gpiod_to_irq(sfp->gpio[i]); in sfp_probe()
3073 if (sfp->gpio_irq[i] < 0) { in sfp_probe()
3074 sfp->gpio_irq[i] = 0; in sfp_probe()
3075 sfp->need_poll = true; in sfp_probe()
3079 sfp_irq_name = devm_kasprintf(sfp->dev, GFP_KERNEL, in sfp_probe()
3080 "%s-%s", dev_name(sfp->dev), in sfp_probe()
3086 err = devm_request_threaded_irq(sfp->dev, sfp->gpio_irq[i], in sfp_probe()
3091 sfp_irq_name, sfp); in sfp_probe()
3093 sfp->gpio_irq[i] = 0; in sfp_probe()
3094 sfp->need_poll = true; in sfp_probe()
3098 if (sfp->need_poll) in sfp_probe()
3099 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_probe()
3106 if (!sfp->gpio[GPIO_TX_DISABLE]) in sfp_probe()
3107 dev_warn(sfp->dev, in sfp_probe()
3108 "No tx_disable pin: SFP modules will always be emitting.\n"); in sfp_probe()
3110 sfp->sfp_bus = sfp_register_socket(sfp->dev, sfp, &sfp_module_ops); in sfp_probe()
3111 if (!sfp->sfp_bus) in sfp_probe()
3114 sfp_debugfs_init(sfp); in sfp_probe()
3121 struct sfp *sfp = platform_get_drvdata(pdev); in sfp_remove() local
3123 sfp_debugfs_exit(sfp); in sfp_remove()
3124 sfp_unregister_socket(sfp->sfp_bus); in sfp_remove()
3127 sfp_sm_event(sfp, SFP_E_REMOVE); in sfp_remove()
3133 struct sfp *sfp = platform_get_drvdata(pdev); in sfp_shutdown() local
3137 if (!sfp->gpio_irq[i]) in sfp_shutdown()
3140 devm_free_irq(sfp->dev, sfp->gpio_irq[i], sfp); in sfp_shutdown()
3143 cancel_delayed_work_sync(&sfp->poll); in sfp_shutdown()
3144 cancel_delayed_work_sync(&sfp->timeout); in sfp_shutdown()
3152 .name = "sfp",
3171 MODULE_ALIAS("platform:sfp");
3174 MODULE_DESCRIPTION("SFP cage support");