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
317 /* SFP GPON module Ubiquiti U-Fiber Instant has in its EEPROM stored in sfp_module_supported()
318 * phys id SFF instead of SFP. Therefore mark this module explicitly in sfp_module_supported()
338 { .compatible = "sff,sfp", .data = &sfp_data, },
343 static void sfp_fixup_long_startup(struct sfp *sfp) in sfp_fixup_long_startup() argument
345 sfp->module_t_start_up = T_START_UP_BAD_GPON; in sfp_fixup_long_startup()
348 static void sfp_fixup_ignore_tx_fault(struct sfp *sfp) in sfp_fixup_ignore_tx_fault() argument
350 sfp->tx_fault_ignore = true; in sfp_fixup_ignore_tx_fault()
354 static void sfp_fixup_10gbaset_30m(struct sfp *sfp) in sfp_fixup_10gbaset_30m() argument
356 sfp->id.base.connector = SFF8024_CONNECTOR_RJ45; in sfp_fixup_10gbaset_30m()
357 sfp->id.base.extended_cc = SFF8024_ECC_10GBASE_T_SR; in sfp_fixup_10gbaset_30m()
360 static void sfp_fixup_rollball_proto(struct sfp *sfp, unsigned int secs) in sfp_fixup_rollball_proto() argument
362 sfp->mdio_protocol = MDIO_I2C_ROLLBALL; in sfp_fixup_rollball_proto()
363 sfp->module_t_wait = msecs_to_jiffies(secs * 1000); in sfp_fixup_rollball_proto()
366 static void sfp_fixup_fs_10gt(struct sfp *sfp) in sfp_fixup_fs_10gt() argument
368 sfp_fixup_10gbaset_30m(sfp); in sfp_fixup_fs_10gt()
371 sfp_fixup_rollball_proto(sfp, 4); in sfp_fixup_fs_10gt()
374 static void sfp_fixup_halny_gsfp(struct sfp *sfp) in sfp_fixup_halny_gsfp() argument
380 sfp->state_hw_mask &= ~(SFP_F_TX_FAULT | SFP_F_LOS); in sfp_fixup_halny_gsfp()
383 static void sfp_fixup_rollball(struct sfp *sfp) in sfp_fixup_rollball() argument
386 sfp_fixup_rollball_proto(sfp, 25); in sfp_fixup_rollball()
389 static void sfp_fixup_rollball_cc(struct sfp *sfp) in sfp_fixup_rollball_cc() argument
391 sfp_fixup_rollball(sfp); in sfp_fixup_rollball_cc()
396 sfp->id.base.extended_cc = SFF8024_ECC_10GBASE_T_SFI; in sfp_fixup_rollball_cc()
418 /* Copper 2.5G SFP */ in sfp_quirk_oem_2_5g()
451 // Fiberstore SFP-10G-T doesn't identify as copper, and uses the
453 SFP_QUIRK_F("FS", "SFP-10G-T", sfp_fixup_fs_10gt),
477 SFP_QUIRK_F("OEM", "SFP-10G-T", sfp_fixup_rollball_cc),
478 SFP_QUIRK_M("OEM", "SFP-2.5G-T", sfp_quirk_oem_2_5g),
527 static unsigned int sfp_gpio_get_state(struct sfp *sfp) in sfp_gpio_get_state() argument
532 if (gpio_flags[i] != GPIOD_IN || !sfp->gpio[i]) in sfp_gpio_get_state()
535 v = gpiod_get_value_cansleep(sfp->gpio[i]); in sfp_gpio_get_state()
543 static unsigned int sff_gpio_get_state(struct sfp *sfp) in sff_gpio_get_state() argument
545 return sfp_gpio_get_state(sfp) | SFP_F_PRESENT; in sff_gpio_get_state()
548 static void sfp_gpio_set_state(struct sfp *sfp, unsigned int state) in sfp_gpio_set_state() argument
554 drive = sfp->state_hw_drive; in sfp_gpio_set_state()
559 if (sfp->gpio[GPIO_TX_DISABLE]) { in sfp_gpio_set_state()
561 gpiod_direction_output(sfp->gpio[GPIO_TX_DISABLE], in sfp_gpio_set_state()
564 gpiod_direction_input(sfp->gpio[GPIO_TX_DISABLE]); in sfp_gpio_set_state()
567 if (sfp->gpio[GPIO_RS0]) { in sfp_gpio_set_state()
569 gpiod_direction_output(sfp->gpio[GPIO_RS0], in sfp_gpio_set_state()
572 gpiod_direction_input(sfp->gpio[GPIO_RS0]); in sfp_gpio_set_state()
575 if (sfp->gpio[GPIO_RS1]) { in sfp_gpio_set_state()
577 gpiod_direction_output(sfp->gpio[GPIO_RS1], in sfp_gpio_set_state()
580 gpiod_direction_input(sfp->gpio[GPIO_RS1]); in sfp_gpio_set_state()
584 static int sfp_i2c_read(struct sfp *sfp, bool a2, u8 dev_addr, void *buf, in sfp_i2c_read() argument
589 size_t block_size = sfp->i2c_block_size; in sfp_i2c_read()
609 ret = i2c_transfer(sfp->i2c, msgs, ARRAY_SIZE(msgs)); in sfp_i2c_read()
624 static int sfp_i2c_write(struct sfp *sfp, bool a2, u8 dev_addr, void *buf, in sfp_i2c_write() argument
641 ret = i2c_transfer(sfp->i2c, msgs, ARRAY_SIZE(msgs)); in sfp_i2c_write()
651 static int sfp_i2c_configure(struct sfp *sfp, struct i2c_adapter *i2c) in sfp_i2c_configure() argument
656 sfp->i2c = i2c; in sfp_i2c_configure()
657 sfp->read = sfp_i2c_read; in sfp_i2c_configure()
658 sfp->write = sfp_i2c_write; in sfp_i2c_configure()
663 static int sfp_i2c_mdiobus_create(struct sfp *sfp) in sfp_i2c_mdiobus_create() argument
668 i2c_mii = mdio_i2c_alloc(sfp->dev, sfp->i2c, sfp->mdio_protocol); in sfp_i2c_mdiobus_create()
672 i2c_mii->name = "SFP I2C Bus"; in sfp_i2c_mdiobus_create()
681 sfp->i2c_mii = i2c_mii; in sfp_i2c_mdiobus_create()
686 static void sfp_i2c_mdiobus_destroy(struct sfp *sfp) in sfp_i2c_mdiobus_destroy() argument
688 mdiobus_unregister(sfp->i2c_mii); in sfp_i2c_mdiobus_destroy()
689 sfp->i2c_mii = NULL; in sfp_i2c_mdiobus_destroy()
693 static int sfp_read(struct sfp *sfp, bool a2, u8 addr, void *buf, size_t len) in sfp_read() argument
695 return sfp->read(sfp, a2, addr, buf, len); in sfp_read()
698 static int sfp_write(struct sfp *sfp, bool a2, u8 addr, void *buf, size_t len) in sfp_write() argument
700 return sfp->write(sfp, a2, addr, buf, len); in sfp_write()
703 static int sfp_modify_u8(struct sfp *sfp, bool a2, u8 addr, u8 mask, u8 val) in sfp_modify_u8() argument
708 ret = sfp_read(sfp, a2, addr, &old, sizeof(old)); in sfp_modify_u8()
716 return sfp_write(sfp, a2, addr, &v, sizeof(v)); in sfp_modify_u8()
719 static unsigned int sfp_soft_get_state(struct sfp *sfp) in sfp_soft_get_state() argument
725 ret = sfp_read(sfp, true, SFP_STATUS, &status, sizeof(status)); in sfp_soft_get_state()
732 dev_err_ratelimited(sfp->dev, in sfp_soft_get_state()
733 "failed to read SFP soft status: %pe\n", in sfp_soft_get_state()
736 state = sfp->state; in sfp_soft_get_state()
739 return state & sfp->state_soft_mask; in sfp_soft_get_state()
742 static void sfp_soft_set_state(struct sfp *sfp, unsigned int state, in sfp_soft_set_state() argument
759 sfp_modify_u8(sfp, true, SFP_STATUS, mask, val); in sfp_soft_set_state()
768 sfp_modify_u8(sfp, true, SFP_EXT_STATUS, mask, val); in sfp_soft_set_state()
771 static void sfp_soft_start_poll(struct sfp *sfp) in sfp_soft_start_poll() argument
773 const struct sfp_eeprom_id *id = &sfp->id; in sfp_soft_start_poll()
783 mask |= sfp->rs_state_mask; in sfp_soft_start_poll()
785 mutex_lock(&sfp->st_mutex); in sfp_soft_start_poll()
787 sfp->state_soft_mask = ~sfp->state_hw_mask & mask; in sfp_soft_start_poll()
789 if (sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT) && in sfp_soft_start_poll()
790 !sfp->need_poll) in sfp_soft_start_poll()
791 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_soft_start_poll()
792 mutex_unlock(&sfp->st_mutex); in sfp_soft_start_poll()
795 static void sfp_soft_stop_poll(struct sfp *sfp) in sfp_soft_stop_poll() argument
797 mutex_lock(&sfp->st_mutex); in sfp_soft_stop_poll()
798 sfp->state_soft_mask = 0; in sfp_soft_stop_poll()
799 mutex_unlock(&sfp->st_mutex); in sfp_soft_stop_poll()
805 static unsigned int sfp_get_state(struct sfp *sfp) in sfp_get_state() argument
807 unsigned int soft = sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT); in sfp_get_state()
810 state = sfp->get_state(sfp) & sfp->state_hw_mask; in sfp_get_state()
812 state |= sfp_soft_get_state(sfp); in sfp_get_state()
820 static void sfp_set_state(struct sfp *sfp, unsigned int state) in sfp_set_state() argument
824 sfp->set_state(sfp, state); in sfp_set_state()
826 soft = sfp->state_soft_mask & SFP_F_OUTPUTS; in sfp_set_state()
828 sfp_soft_set_state(sfp, state, soft); in sfp_set_state()
831 static void sfp_mod_state(struct sfp *sfp, unsigned int mask, unsigned int set) in sfp_mod_state() argument
833 mutex_lock(&sfp->st_mutex); in sfp_mod_state()
834 sfp->state = (sfp->state & ~mask) | set; in sfp_mod_state()
835 sfp_set_state(sfp, sfp->state); in sfp_mod_state()
836 mutex_unlock(&sfp->st_mutex); in sfp_mod_state()
855 const struct sfp *sfp = data; in sfp_hwmon_is_visible() local
868 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
887 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
906 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
922 if (sfp->id.ext.diagmon & SFP_DIAGMON_EXT_CAL && in sfp_hwmon_is_visible()
934 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
948 static int sfp_hwmon_read_sensor(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_sensor() argument
953 err = sfp_read(sfp, true, reg, &val, sizeof(val)); in sfp_hwmon_read_sensor()
967 static void sfp_hwmon_calibrate(struct sfp *sfp, unsigned int slope, int offset, in sfp_hwmon_calibrate() argument
970 if (sfp->id.ext.diagmon & SFP_DIAGMON_EXT_CAL) in sfp_hwmon_calibrate()
974 static void sfp_hwmon_calibrate_temp(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_temp() argument
976 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_t_slope), in sfp_hwmon_calibrate_temp()
977 be16_to_cpu(sfp->diag.cal_t_offset), value); in sfp_hwmon_calibrate_temp()
985 static void sfp_hwmon_calibrate_vcc(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_vcc() argument
987 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_v_slope), in sfp_hwmon_calibrate_vcc()
988 be16_to_cpu(sfp->diag.cal_v_offset), value); in sfp_hwmon_calibrate_vcc()
993 static void sfp_hwmon_calibrate_bias(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_bias() argument
995 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_txi_slope), in sfp_hwmon_calibrate_bias()
996 be16_to_cpu(sfp->diag.cal_txi_offset), value); in sfp_hwmon_calibrate_bias()
1001 static void sfp_hwmon_calibrate_tx_power(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_tx_power() argument
1003 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_txpwr_slope), in sfp_hwmon_calibrate_tx_power()
1004 be16_to_cpu(sfp->diag.cal_txpwr_offset), value); in sfp_hwmon_calibrate_tx_power()
1009 static int sfp_hwmon_read_temp(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_temp() argument
1013 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_temp()
1017 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_read_temp()
1022 static int sfp_hwmon_read_vcc(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_vcc() argument
1026 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_vcc()
1030 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_read_vcc()
1035 static int sfp_hwmon_read_bias(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_bias() argument
1039 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_bias()
1043 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_read_bias()
1048 static int sfp_hwmon_read_tx_power(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_tx_power() argument
1052 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_tx_power()
1056 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_read_tx_power()
1061 static int sfp_hwmon_read_rx_power(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_rx_power() argument
1065 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_rx_power()
1074 static int sfp_hwmon_temp(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_temp() argument
1081 return sfp_hwmon_read_temp(sfp, SFP_TEMP, value); in sfp_hwmon_temp()
1084 *value = be16_to_cpu(sfp->diag.temp_low_alarm); in sfp_hwmon_temp()
1085 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
1089 *value = be16_to_cpu(sfp->diag.temp_low_warn); in sfp_hwmon_temp()
1090 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
1093 *value = be16_to_cpu(sfp->diag.temp_high_warn); in sfp_hwmon_temp()
1094 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
1098 *value = be16_to_cpu(sfp->diag.temp_high_alarm); in sfp_hwmon_temp()
1099 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
1103 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_temp()
1111 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_temp()
1119 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_temp()
1127 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_temp()
1140 static int sfp_hwmon_vcc(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_vcc() argument
1147 return sfp_hwmon_read_vcc(sfp, SFP_VCC, value); in sfp_hwmon_vcc()
1150 *value = be16_to_cpu(sfp->diag.volt_low_alarm); in sfp_hwmon_vcc()
1151 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
1155 *value = be16_to_cpu(sfp->diag.volt_low_warn); in sfp_hwmon_vcc()
1156 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
1160 *value = be16_to_cpu(sfp->diag.volt_high_warn); in sfp_hwmon_vcc()
1161 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
1165 *value = be16_to_cpu(sfp->diag.volt_high_alarm); in sfp_hwmon_vcc()
1166 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
1170 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_vcc()
1178 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_vcc()
1186 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_vcc()
1194 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_vcc()
1207 static int sfp_hwmon_bias(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_bias() argument
1214 return sfp_hwmon_read_bias(sfp, SFP_TX_BIAS, value); in sfp_hwmon_bias()
1217 *value = be16_to_cpu(sfp->diag.bias_low_alarm); in sfp_hwmon_bias()
1218 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
1222 *value = be16_to_cpu(sfp->diag.bias_low_warn); in sfp_hwmon_bias()
1223 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
1227 *value = be16_to_cpu(sfp->diag.bias_high_warn); in sfp_hwmon_bias()
1228 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
1232 *value = be16_to_cpu(sfp->diag.bias_high_alarm); in sfp_hwmon_bias()
1233 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
1237 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_bias()
1245 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_bias()
1253 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_bias()
1261 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_bias()
1274 static int sfp_hwmon_tx_power(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_tx_power() argument
1281 return sfp_hwmon_read_tx_power(sfp, SFP_TX_POWER, value); in sfp_hwmon_tx_power()
1284 *value = be16_to_cpu(sfp->diag.txpwr_low_alarm); in sfp_hwmon_tx_power()
1285 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1289 *value = be16_to_cpu(sfp->diag.txpwr_low_warn); in sfp_hwmon_tx_power()
1290 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1294 *value = be16_to_cpu(sfp->diag.txpwr_high_warn); in sfp_hwmon_tx_power()
1295 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1299 *value = be16_to_cpu(sfp->diag.txpwr_high_alarm); in sfp_hwmon_tx_power()
1300 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1304 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1312 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1320 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1328 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1341 static int sfp_hwmon_rx_power(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_rx_power() argument
1348 return sfp_hwmon_read_rx_power(sfp, SFP_RX_POWER, value); in sfp_hwmon_rx_power()
1351 *value = be16_to_cpu(sfp->diag.rxpwr_low_alarm); in sfp_hwmon_rx_power()
1356 *value = be16_to_cpu(sfp->diag.rxpwr_low_warn); in sfp_hwmon_rx_power()
1361 *value = be16_to_cpu(sfp->diag.rxpwr_high_warn); in sfp_hwmon_rx_power()
1366 *value = be16_to_cpu(sfp->diag.rxpwr_high_alarm); in sfp_hwmon_rx_power()
1371 err = sfp_read(sfp, true, SFP_ALARM1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1379 err = sfp_read(sfp, true, SFP_WARN1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1387 err = sfp_read(sfp, true, SFP_WARN1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1395 err = sfp_read(sfp, true, SFP_ALARM1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1411 struct sfp *sfp = dev_get_drvdata(dev); in sfp_hwmon_read() local
1415 return sfp_hwmon_temp(sfp, attr, value); in sfp_hwmon_read()
1417 return sfp_hwmon_vcc(sfp, attr, value); in sfp_hwmon_read()
1419 return sfp_hwmon_bias(sfp, attr, value); in sfp_hwmon_read()
1423 return sfp_hwmon_tx_power(sfp, attr, value); in sfp_hwmon_read()
1425 return sfp_hwmon_rx_power(sfp, attr, value); in sfp_hwmon_read()
1542 struct sfp *sfp = container_of(work, struct sfp, hwmon_probe.work); in sfp_hwmon_probe() local
1551 if (sfp->i2c_block_size < 2) { in sfp_hwmon_probe()
1552 dev_info(sfp->dev, in sfp_hwmon_probe()
1554 dev_info(sfp->dev, in sfp_hwmon_probe()
1559 err = sfp_read(sfp, true, 0, &sfp->diag, sizeof(sfp->diag)); in sfp_hwmon_probe()
1561 if (sfp->hwmon_tries--) { in sfp_hwmon_probe()
1562 mod_delayed_work(system_wq, &sfp->hwmon_probe, in sfp_hwmon_probe()
1565 dev_warn(sfp->dev, "hwmon probe failed: %pe\n", in sfp_hwmon_probe()
1571 sfp->hwmon_name = hwmon_sanitize_name(dev_name(sfp->dev)); in sfp_hwmon_probe()
1572 if (IS_ERR(sfp->hwmon_name)) { in sfp_hwmon_probe()
1573 dev_err(sfp->dev, "out of memory for hwmon name\n"); in sfp_hwmon_probe()
1577 sfp->hwmon_dev = hwmon_device_register_with_info(sfp->dev, in sfp_hwmon_probe()
1578 sfp->hwmon_name, sfp, in sfp_hwmon_probe()
1581 if (IS_ERR(sfp->hwmon_dev)) in sfp_hwmon_probe()
1582 dev_err(sfp->dev, "failed to register hwmon device: %ld\n", in sfp_hwmon_probe()
1583 PTR_ERR(sfp->hwmon_dev)); in sfp_hwmon_probe()
1586 static int sfp_hwmon_insert(struct sfp *sfp) in sfp_hwmon_insert() argument
1588 if (sfp->have_a2 && sfp->id.ext.diagmon & SFP_DIAGMON_DDM) { in sfp_hwmon_insert()
1589 mod_delayed_work(system_wq, &sfp->hwmon_probe, 1); in sfp_hwmon_insert()
1590 sfp->hwmon_tries = R_PROBE_RETRY_SLOW; in sfp_hwmon_insert()
1596 static void sfp_hwmon_remove(struct sfp *sfp) in sfp_hwmon_remove() argument
1598 cancel_delayed_work_sync(&sfp->hwmon_probe); in sfp_hwmon_remove()
1599 if (!IS_ERR_OR_NULL(sfp->hwmon_dev)) { in sfp_hwmon_remove()
1600 hwmon_device_unregister(sfp->hwmon_dev); in sfp_hwmon_remove()
1601 sfp->hwmon_dev = NULL; in sfp_hwmon_remove()
1602 kfree(sfp->hwmon_name); in sfp_hwmon_remove()
1606 static int sfp_hwmon_init(struct sfp *sfp) in sfp_hwmon_init() argument
1608 INIT_DELAYED_WORK(&sfp->hwmon_probe, sfp_hwmon_probe); in sfp_hwmon_init()
1613 static void sfp_hwmon_exit(struct sfp *sfp) in sfp_hwmon_exit() argument
1615 cancel_delayed_work_sync(&sfp->hwmon_probe); in sfp_hwmon_exit()
1618 static int sfp_hwmon_insert(struct sfp *sfp) in sfp_hwmon_insert() argument
1623 static void sfp_hwmon_remove(struct sfp *sfp) in sfp_hwmon_remove() argument
1627 static int sfp_hwmon_init(struct sfp *sfp) in sfp_hwmon_init() argument
1632 static void sfp_hwmon_exit(struct sfp *sfp) in sfp_hwmon_exit() argument
1638 static void sfp_module_tx_disable(struct sfp *sfp) in sfp_module_tx_disable() argument
1640 dev_dbg(sfp->dev, "tx disable %u -> %u\n", in sfp_module_tx_disable()
1641 sfp->state & SFP_F_TX_DISABLE ? 1 : 0, 1); in sfp_module_tx_disable()
1642 sfp_mod_state(sfp, SFP_F_TX_DISABLE, SFP_F_TX_DISABLE); in sfp_module_tx_disable()
1645 static void sfp_module_tx_enable(struct sfp *sfp) in sfp_module_tx_enable() argument
1647 dev_dbg(sfp->dev, "tx disable %u -> %u\n", in sfp_module_tx_enable()
1648 sfp->state & SFP_F_TX_DISABLE ? 1 : 0, 0); in sfp_module_tx_enable()
1649 sfp_mod_state(sfp, SFP_F_TX_DISABLE, 0); in sfp_module_tx_enable()
1655 struct sfp *sfp = s->private; in sfp_debug_state_show() local
1658 mod_state_to_str(sfp->sm_mod_state)); in sfp_debug_state_show()
1660 R_PROBE_RETRY_INIT - sfp->sm_mod_tries_init, in sfp_debug_state_show()
1661 R_PROBE_RETRY_SLOW - sfp->sm_mod_tries); in sfp_debug_state_show()
1663 dev_state_to_str(sfp->sm_dev_state)); in sfp_debug_state_show()
1665 sm_state_to_str(sfp->sm_state)); in sfp_debug_state_show()
1667 sfp->sm_fault_retries); in sfp_debug_state_show()
1669 sfp->sm_phy_retries); in sfp_debug_state_show()
1670 seq_printf(s, "Signalling rate: %u kBd\n", sfp->rate_kbd); in sfp_debug_state_show()
1672 sfp->rs_threshold_kbd); in sfp_debug_state_show()
1673 seq_printf(s, "moddef0: %d\n", !!(sfp->state & SFP_F_PRESENT)); in sfp_debug_state_show()
1674 seq_printf(s, "rx_los: %d\n", !!(sfp->state & SFP_F_LOS)); in sfp_debug_state_show()
1675 seq_printf(s, "tx_fault: %d\n", !!(sfp->state & SFP_F_TX_FAULT)); in sfp_debug_state_show()
1676 seq_printf(s, "tx_disable: %d\n", !!(sfp->state & SFP_F_TX_DISABLE)); in sfp_debug_state_show()
1677 seq_printf(s, "rs0: %d\n", !!(sfp->state & SFP_F_RS0)); in sfp_debug_state_show()
1678 seq_printf(s, "rs1: %d\n", !!(sfp->state & SFP_F_RS1)); in sfp_debug_state_show()
1683 static void sfp_debugfs_init(struct sfp *sfp) in sfp_debugfs_init() argument
1685 sfp->debugfs_dir = debugfs_create_dir(dev_name(sfp->dev), NULL); in sfp_debugfs_init()
1687 debugfs_create_file("state", 0600, sfp->debugfs_dir, sfp, in sfp_debugfs_init()
1691 static void sfp_debugfs_exit(struct sfp *sfp) in sfp_debugfs_exit() argument
1693 debugfs_remove_recursive(sfp->debugfs_dir); in sfp_debugfs_exit()
1696 static void sfp_debugfs_init(struct sfp *sfp) in sfp_debugfs_init() argument
1700 static void sfp_debugfs_exit(struct sfp *sfp) in sfp_debugfs_exit() argument
1705 static void sfp_module_tx_fault_reset(struct sfp *sfp) in sfp_module_tx_fault_reset() argument
1709 mutex_lock(&sfp->st_mutex); in sfp_module_tx_fault_reset()
1710 state = sfp->state; in sfp_module_tx_fault_reset()
1712 sfp_set_state(sfp, state | SFP_F_TX_DISABLE); in sfp_module_tx_fault_reset()
1716 sfp_set_state(sfp, state); in sfp_module_tx_fault_reset()
1718 mutex_unlock(&sfp->st_mutex); in sfp_module_tx_fault_reset()
1721 /* SFP state machine */
1722 static void sfp_sm_set_timer(struct sfp *sfp, unsigned int timeout) in sfp_sm_set_timer() argument
1725 mod_delayed_work(system_power_efficient_wq, &sfp->timeout, in sfp_sm_set_timer()
1728 cancel_delayed_work(&sfp->timeout); in sfp_sm_set_timer()
1731 static void sfp_sm_next(struct sfp *sfp, unsigned int state, in sfp_sm_next() argument
1734 sfp->sm_state = state; in sfp_sm_next()
1735 sfp_sm_set_timer(sfp, timeout); in sfp_sm_next()
1738 static void sfp_sm_mod_next(struct sfp *sfp, unsigned int state, in sfp_sm_mod_next() argument
1741 sfp->sm_mod_state = state; in sfp_sm_mod_next()
1742 sfp_sm_set_timer(sfp, timeout); in sfp_sm_mod_next()
1745 static void sfp_sm_phy_detach(struct sfp *sfp) in sfp_sm_phy_detach() argument
1747 sfp_remove_phy(sfp->sfp_bus); in sfp_sm_phy_detach()
1748 phy_device_remove(sfp->mod_phy); in sfp_sm_phy_detach()
1749 phy_device_free(sfp->mod_phy); in sfp_sm_phy_detach()
1750 sfp->mod_phy = NULL; in sfp_sm_phy_detach()
1753 static int sfp_sm_probe_phy(struct sfp *sfp, int addr, bool is_c45) in sfp_sm_probe_phy() argument
1758 phy = get_phy_device(sfp->i2c_mii, addr, is_c45); in sfp_sm_probe_phy()
1762 dev_err(sfp->dev, "mdiobus scan returned %pe\n", phy); in sfp_sm_probe_phy()
1766 /* Mark this PHY as being on a SFP module */ in sfp_sm_probe_phy()
1772 dev_err(sfp->dev, "phy_device_register failed: %pe\n", in sfp_sm_probe_phy()
1777 err = sfp_add_phy(sfp->sfp_bus, phy); in sfp_sm_probe_phy()
1781 dev_err(sfp->dev, "sfp_add_phy failed: %pe\n", ERR_PTR(err)); in sfp_sm_probe_phy()
1785 sfp->mod_phy = phy; in sfp_sm_probe_phy()
1790 static void sfp_sm_link_up(struct sfp *sfp) in sfp_sm_link_up() argument
1792 sfp_link_up(sfp->sfp_bus); in sfp_sm_link_up()
1793 sfp_sm_next(sfp, SFP_S_LINK_UP, 0); in sfp_sm_link_up()
1796 static void sfp_sm_link_down(struct sfp *sfp) in sfp_sm_link_down() argument
1798 sfp_link_down(sfp->sfp_bus); in sfp_sm_link_down()
1801 static void sfp_sm_link_check_los(struct sfp *sfp) in sfp_sm_link_check_los() argument
1805 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_sm_link_check_los()
1813 los = !(sfp->state & SFP_F_LOS); in sfp_sm_link_check_los()
1815 los = !!(sfp->state & SFP_F_LOS); in sfp_sm_link_check_los()
1818 sfp_sm_next(sfp, SFP_S_WAIT_LOS, 0); in sfp_sm_link_check_los()
1820 sfp_sm_link_up(sfp); in sfp_sm_link_check_los()
1823 static bool sfp_los_event_active(struct sfp *sfp, unsigned int event) in sfp_los_event_active() argument
1827 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_los_event_active()
1833 static bool sfp_los_event_inactive(struct sfp *sfp, unsigned int event) in sfp_los_event_inactive() argument
1837 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_los_event_inactive()
1843 static void sfp_sm_fault(struct sfp *sfp, unsigned int next_state, bool warn) in sfp_sm_fault() argument
1845 if (sfp->sm_fault_retries && !--sfp->sm_fault_retries) { in sfp_sm_fault()
1846 dev_err(sfp->dev, in sfp_sm_fault()
1848 sfp_sm_next(sfp, SFP_S_TX_DISABLE, 0); in sfp_sm_fault()
1851 dev_err(sfp->dev, "module transmit fault indicated\n"); in sfp_sm_fault()
1853 sfp_sm_next(sfp, next_state, T_FAULT_RECOVER); in sfp_sm_fault()
1857 static int sfp_sm_add_mdio_bus(struct sfp *sfp) in sfp_sm_add_mdio_bus() argument
1859 if (sfp->mdio_protocol != MDIO_I2C_NONE) in sfp_sm_add_mdio_bus()
1860 return sfp_i2c_mdiobus_create(sfp); in sfp_sm_add_mdio_bus()
1865 /* Probe a SFP for a PHY device if the module supports copper - the PHY
1869 * Clause 22 copper SFP modules normally operate in Cisco SGMII mode with
1873 * Clause 45 copper SFP+ modules (10G) appear to switch their interface
1876 static int sfp_sm_probe_for_phy(struct sfp *sfp) in sfp_sm_probe_for_phy() argument
1880 switch (sfp->mdio_protocol) { in sfp_sm_probe_for_phy()
1885 err = sfp_sm_probe_phy(sfp, SFP_PHY_ADDR, false); in sfp_sm_probe_for_phy()
1889 err = sfp_sm_probe_phy(sfp, SFP_PHY_ADDR, true); in sfp_sm_probe_for_phy()
1893 err = sfp_sm_probe_phy(sfp, SFP_PHY_ADDR_ROLLBALL, true); in sfp_sm_probe_for_phy()
1900 static int sfp_module_parse_power(struct sfp *sfp) in sfp_module_parse_power() argument
1905 if (sfp->id.ext.sff8472_compliance >= SFP_SFF8472_COMPLIANCE_REV10_2 && in sfp_module_parse_power()
1906 sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_POWER_DECL)) in sfp_module_parse_power()
1909 if (sfp->id.ext.sff8472_compliance >= SFP_SFF8472_COMPLIANCE_REV11_4 && in sfp_module_parse_power()
1910 sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_HIGH_POWER_LEVEL)) in sfp_module_parse_power()
1915 sfp->module_power_mW = power_mW; in sfp_module_parse_power()
1919 supports_a2 = sfp->id.ext.sff8472_compliance != in sfp_module_parse_power()
1921 sfp->id.ext.diagmon & SFP_DIAGMON_DDM; in sfp_module_parse_power()
1923 if (power_mW > sfp->max_power_mW) { in sfp_module_parse_power()
1930 dev_err(sfp->dev, in sfp_module_parse_power()
1935 dev_warn(sfp->dev, in sfp_module_parse_power()
1954 if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE) { in sfp_module_parse_power()
1955 dev_warn(sfp->dev, in sfp_module_parse_power()
1961 sfp->module_power_mW = power_mW; in sfp_module_parse_power()
1966 static int sfp_sm_mod_hpower(struct sfp *sfp, bool enable) in sfp_sm_mod_hpower() argument
1970 err = sfp_modify_u8(sfp, true, SFP_EXT_STATUS, in sfp_sm_mod_hpower()
1974 dev_err(sfp->dev, "failed to %sable high power: %pe\n", in sfp_sm_mod_hpower()
1980 dev_info(sfp->dev, "Module switched to %u.%uW power level\n", in sfp_sm_mod_hpower()
1981 sfp->module_power_mW / 1000, in sfp_sm_mod_hpower()
1982 (sfp->module_power_mW / 100) % 10); in sfp_sm_mod_hpower()
1987 static void sfp_module_parse_rate_select(struct sfp *sfp) in sfp_module_parse_rate_select() argument
1991 sfp->rs_threshold_kbd = 0; in sfp_module_parse_rate_select()
1992 sfp->rs_state_mask = 0; in sfp_module_parse_rate_select()
1994 if (!(sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_RATE_SELECT))) in sfp_module_parse_rate_select()
2004 sfp->rs_state_mask = SFP_F_RS0; in sfp_module_parse_rate_select()
2005 sfp->rs_threshold_kbd = 1594; in sfp_module_parse_rate_select()
2015 rate_id = sfp->id.base.rate_id; in sfp_module_parse_rate_select()
2024 if (sfp->id.ext.sff8472_compliance >= SFP_SFF8472_COMPLIANCE_REV10_2 && in sfp_module_parse_rate_select()
2025 sfp->id.ext.sff8472_compliance < SFP_SFF8472_COMPLIANCE_REV11_0 && in sfp_module_parse_rate_select()
2034 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_APP_SELECT_SFF8079)) { in sfp_module_parse_rate_select()
2040 sfp->rs_threshold_kbd = 2125 - 1; in sfp_module_parse_rate_select()
2041 sfp->rs_state_mask = SFP_F_RS0; in sfp_module_parse_rate_select()
2047 if (sfp->id.ext.sff8472_compliance <= SFP_SFF8472_COMPLIANCE_REV9_5) in sfp_module_parse_rate_select()
2055 sfp->rs_threshold_kbd = 4250; in sfp_module_parse_rate_select()
2056 sfp->rs_state_mask = SFP_F_RS0; in sfp_module_parse_rate_select()
2060 sfp->rs_threshold_kbd = 4250; in sfp_module_parse_rate_select()
2061 sfp->rs_state_mask = SFP_F_RS1; in sfp_module_parse_rate_select()
2065 sfp->rs_threshold_kbd = 4250; in sfp_module_parse_rate_select()
2066 sfp->rs_state_mask = SFP_F_RS0 | SFP_F_RS1; in sfp_module_parse_rate_select()
2070 sfp->rs_threshold_kbd = 9000; in sfp_module_parse_rate_select()
2071 sfp->rs_state_mask = SFP_F_RS0 | SFP_F_RS1; in sfp_module_parse_rate_select()
2087 static bool sfp_id_needs_byte_io(struct sfp *sfp, void *buf, size_t len) in sfp_id_needs_byte_io() argument
2089 size_t i, block_size = sfp->i2c_block_size; in sfp_id_needs_byte_io()
2102 static int sfp_cotsworks_fixup_check(struct sfp *sfp, struct sfp_eeprom_id *id) in sfp_cotsworks_fixup_check() argument
2110 dev_warn(sfp->dev, "Rewriting fiber module EEPROM with corrected values\n"); in sfp_cotsworks_fixup_check()
2114 err = sfp_write(sfp, false, SFP_PHYS_ID, &id->base, 3); in sfp_cotsworks_fixup_check()
2116 dev_err(sfp->dev, in sfp_cotsworks_fixup_check()
2127 err = sfp_write(sfp, false, SFP_CC_BASE, &check, 1); in sfp_cotsworks_fixup_check()
2129 dev_err(sfp->dev, in sfp_cotsworks_fixup_check()
2138 static int sfp_module_parse_sff8472(struct sfp *sfp) in sfp_module_parse_sff8472() argument
2141 if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE) in sfp_module_parse_sff8472()
2142 dev_warn(sfp->dev, in sfp_module_parse_sff8472()
2145 sfp->have_a2 = true; in sfp_module_parse_sff8472()
2150 static int sfp_sm_mod_probe(struct sfp *sfp, bool report) in sfp_sm_mod_probe() argument
2152 /* SFP module inserted - read I2C data */ in sfp_sm_mod_probe()
2160 sfp->i2c_block_size = SFP_EEPROM_BLOCK_SIZE; in sfp_sm_mod_probe()
2162 ret = sfp_read(sfp, false, 0, &id.base, sizeof(id.base)); in sfp_sm_mod_probe()
2165 dev_err(sfp->dev, "failed to read EEPROM: %pe\n", in sfp_sm_mod_probe()
2171 dev_err(sfp->dev, "EEPROM short read: %pe\n", ERR_PTR(ret)); in sfp_sm_mod_probe()
2175 /* Some SFP modules (e.g. Nokia 3FE46541AA) lock up if read from in sfp_sm_mod_probe()
2181 if (sfp_id_needs_byte_io(sfp, &id.base, sizeof(id.base))) { in sfp_sm_mod_probe()
2182 dev_info(sfp->dev, in sfp_sm_mod_probe()
2184 dev_info(sfp->dev, in sfp_sm_mod_probe()
2186 sfp->i2c_block_size = 1; in sfp_sm_mod_probe()
2188 ret = sfp_read(sfp, false, 0, &id.base, sizeof(id.base)); in sfp_sm_mod_probe()
2191 dev_err(sfp->dev, in sfp_sm_mod_probe()
2198 dev_err(sfp->dev, "EEPROM short read: %pe\n", in sfp_sm_mod_probe()
2216 ret = sfp_cotsworks_fixup_check(sfp, &id); in sfp_sm_mod_probe()
2225 dev_warn(sfp->dev, in sfp_sm_mod_probe()
2229 dev_err(sfp->dev, in sfp_sm_mod_probe()
2232 print_hex_dump(KERN_ERR, "sfp EE: ", DUMP_PREFIX_OFFSET, in sfp_sm_mod_probe()
2238 ret = sfp_read(sfp, false, SFP_CC_BASE + 1, &id.ext, sizeof(id.ext)); in sfp_sm_mod_probe()
2241 dev_err(sfp->dev, "failed to read EEPROM: %pe\n", in sfp_sm_mod_probe()
2247 dev_err(sfp->dev, "EEPROM short read: %pe\n", ERR_PTR(ret)); in sfp_sm_mod_probe()
2254 dev_warn(sfp->dev, in sfp_sm_mod_probe()
2258 dev_err(sfp->dev, in sfp_sm_mod_probe()
2261 print_hex_dump(KERN_ERR, "sfp EE: ", DUMP_PREFIX_OFFSET, in sfp_sm_mod_probe()
2267 sfp->id = id; in sfp_sm_mod_probe()
2269 dev_info(sfp->dev, "module %.*s %.*s rev %.*s sn %.*s dc %.*s\n", in sfp_sm_mod_probe()
2277 if (!sfp->type->module_supported(&id)) { in sfp_sm_mod_probe()
2278 dev_err(sfp->dev, in sfp_sm_mod_probe()
2280 sfp->id.base.phys_id, sfp->id.base.phys_ext_id); in sfp_sm_mod_probe()
2284 if (sfp->id.ext.sff8472_compliance != SFP_SFF8472_COMPLIANCE_NONE) { in sfp_sm_mod_probe()
2285 ret = sfp_module_parse_sff8472(sfp); in sfp_sm_mod_probe()
2291 ret = sfp_module_parse_power(sfp); in sfp_sm_mod_probe()
2295 sfp_module_parse_rate_select(sfp); in sfp_sm_mod_probe()
2298 if (sfp->gpio[GPIO_TX_DISABLE]) in sfp_sm_mod_probe()
2300 if (sfp->gpio[GPIO_TX_FAULT]) in sfp_sm_mod_probe()
2302 if (sfp->gpio[GPIO_LOS]) in sfp_sm_mod_probe()
2304 if (sfp->gpio[GPIO_RS0]) in sfp_sm_mod_probe()
2306 if (sfp->gpio[GPIO_RS1]) in sfp_sm_mod_probe()
2309 sfp->module_t_start_up = T_START_UP; in sfp_sm_mod_probe()
2310 sfp->module_t_wait = T_WAIT; in sfp_sm_mod_probe()
2312 sfp->tx_fault_ignore = false; in sfp_sm_mod_probe()
2314 if (sfp->id.base.extended_cc == SFF8024_ECC_10GBASE_T_SFI || in sfp_sm_mod_probe()
2315 sfp->id.base.extended_cc == SFF8024_ECC_10GBASE_T_SR || in sfp_sm_mod_probe()
2316 sfp->id.base.extended_cc == SFF8024_ECC_5GBASE_T || in sfp_sm_mod_probe()
2317 sfp->id.base.extended_cc == SFF8024_ECC_2_5GBASE_T) in sfp_sm_mod_probe()
2318 sfp->mdio_protocol = MDIO_I2C_C45; in sfp_sm_mod_probe()
2319 else if (sfp->id.base.e1000_base_t) in sfp_sm_mod_probe()
2320 sfp->mdio_protocol = MDIO_I2C_MARVELL_C22; in sfp_sm_mod_probe()
2322 sfp->mdio_protocol = MDIO_I2C_NONE; in sfp_sm_mod_probe()
2324 sfp->quirk = sfp_lookup_quirk(&id); in sfp_sm_mod_probe()
2326 mutex_lock(&sfp->st_mutex); in sfp_sm_mod_probe()
2328 sfp->state_hw_mask = mask; in sfp_sm_mod_probe()
2331 sfp->state_hw_drive |= sfp->rs_state_mask; in sfp_sm_mod_probe()
2333 if (sfp->quirk && sfp->quirk->fixup) in sfp_sm_mod_probe()
2334 sfp->quirk->fixup(sfp); in sfp_sm_mod_probe()
2335 mutex_unlock(&sfp->st_mutex); in sfp_sm_mod_probe()
2340 static void sfp_sm_mod_remove(struct sfp *sfp) in sfp_sm_mod_remove() argument
2342 if (sfp->sm_mod_state > SFP_MOD_WAITDEV) in sfp_sm_mod_remove()
2343 sfp_module_remove(sfp->sfp_bus); in sfp_sm_mod_remove()
2345 sfp_hwmon_remove(sfp); in sfp_sm_mod_remove()
2347 memset(&sfp->id, 0, sizeof(sfp->id)); in sfp_sm_mod_remove()
2348 sfp->module_power_mW = 0; in sfp_sm_mod_remove()
2349 sfp->state_hw_drive = SFP_F_TX_DISABLE; in sfp_sm_mod_remove()
2350 sfp->have_a2 = false; in sfp_sm_mod_remove()
2352 dev_info(sfp->dev, "module removed\n"); in sfp_sm_mod_remove()
2356 static void sfp_sm_device(struct sfp *sfp, unsigned int event) in sfp_sm_device() argument
2358 switch (sfp->sm_dev_state) { in sfp_sm_device()
2361 sfp->sm_dev_state = SFP_DEV_DOWN; in sfp_sm_device()
2366 sfp->sm_dev_state = SFP_DEV_DETACHED; in sfp_sm_device()
2368 sfp->sm_dev_state = SFP_DEV_UP; in sfp_sm_device()
2373 sfp->sm_dev_state = SFP_DEV_DETACHED; in sfp_sm_device()
2375 sfp->sm_dev_state = SFP_DEV_DOWN; in sfp_sm_device()
2383 static void sfp_sm_module(struct sfp *sfp, unsigned int event) in sfp_sm_module() argument
2389 if (sfp->sm_mod_state > SFP_MOD_PROBE) in sfp_sm_module()
2390 sfp_sm_mod_remove(sfp); in sfp_sm_module()
2391 sfp_sm_mod_next(sfp, SFP_MOD_EMPTY, 0); in sfp_sm_module()
2396 if (sfp->sm_dev_state < SFP_DEV_DOWN && in sfp_sm_module()
2397 sfp->sm_mod_state > SFP_MOD_WAITDEV) { in sfp_sm_module()
2398 if (sfp->module_power_mW > 1000 && in sfp_sm_module()
2399 sfp->sm_mod_state > SFP_MOD_HPOWER) in sfp_sm_module()
2400 sfp_sm_mod_hpower(sfp, false); in sfp_sm_module()
2401 sfp_sm_mod_next(sfp, SFP_MOD_WAITDEV, 0); in sfp_sm_module()
2405 switch (sfp->sm_mod_state) { in sfp_sm_module()
2408 sfp_sm_mod_next(sfp, SFP_MOD_PROBE, T_SERIAL); in sfp_sm_module()
2409 sfp->sm_mod_tries_init = R_PROBE_RETRY_INIT; in sfp_sm_module()
2410 sfp->sm_mod_tries = R_PROBE_RETRY_SLOW; in sfp_sm_module()
2419 err = sfp_sm_mod_probe(sfp, sfp->sm_mod_tries == 1); in sfp_sm_module()
2421 if (sfp->sm_mod_tries_init && in sfp_sm_module()
2422 --sfp->sm_mod_tries_init) { in sfp_sm_module()
2423 sfp_sm_set_timer(sfp, T_PROBE_RETRY_INIT); in sfp_sm_module()
2425 } else if (sfp->sm_mod_tries && --sfp->sm_mod_tries) { in sfp_sm_module()
2426 if (sfp->sm_mod_tries == R_PROBE_RETRY_SLOW - 1) in sfp_sm_module()
2427 dev_warn(sfp->dev, in sfp_sm_module()
2429 sfp_sm_set_timer(sfp, T_PROBE_RETRY_SLOW); in sfp_sm_module()
2434 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
2441 mod_delayed_work(system_wq, &sfp->poll, 1); in sfp_sm_module()
2443 err = sfp_hwmon_insert(sfp); in sfp_sm_module()
2445 dev_warn(sfp->dev, "hwmon probe failed: %pe\n", in sfp_sm_module()
2448 sfp_sm_mod_next(sfp, SFP_MOD_WAITDEV, 0); in sfp_sm_module()
2452 if (sfp->sm_dev_state < SFP_DEV_DOWN) in sfp_sm_module()
2456 err = sfp_module_insert(sfp->sfp_bus, &sfp->id, in sfp_sm_module()
2457 sfp->quirk); in sfp_sm_module()
2459 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
2464 if (sfp->module_power_mW <= 1000) in sfp_sm_module()
2467 sfp_sm_mod_next(sfp, SFP_MOD_HPOWER, 0); in sfp_sm_module()
2471 err = sfp_sm_mod_hpower(sfp, true); in sfp_sm_module()
2474 sfp_module_remove(sfp->sfp_bus); in sfp_sm_module()
2475 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
2477 sfp_sm_set_timer(sfp, T_PROBE_RETRY_INIT); in sfp_sm_module()
2482 sfp_sm_mod_next(sfp, SFP_MOD_WAITPWR, T_HPOWER_LEVEL); in sfp_sm_module()
2491 sfp_sm_mod_next(sfp, SFP_MOD_PRESENT, 0); in sfp_sm_module()
2500 static void sfp_sm_main(struct sfp *sfp, unsigned int event) in sfp_sm_main() argument
2506 if (sfp->sm_state != SFP_S_DOWN && in sfp_sm_main()
2507 (sfp->sm_mod_state != SFP_MOD_PRESENT || in sfp_sm_main()
2508 sfp->sm_dev_state != SFP_DEV_UP)) { in sfp_sm_main()
2509 if (sfp->sm_state == SFP_S_LINK_UP && in sfp_sm_main()
2510 sfp->sm_dev_state == SFP_DEV_UP) in sfp_sm_main()
2511 sfp_sm_link_down(sfp); in sfp_sm_main()
2512 if (sfp->sm_state > SFP_S_INIT) in sfp_sm_main()
2513 sfp_module_stop(sfp->sfp_bus); in sfp_sm_main()
2514 if (sfp->mod_phy) in sfp_sm_main()
2515 sfp_sm_phy_detach(sfp); in sfp_sm_main()
2516 if (sfp->i2c_mii) in sfp_sm_main()
2517 sfp_i2c_mdiobus_destroy(sfp); in sfp_sm_main()
2518 sfp_module_tx_disable(sfp); in sfp_sm_main()
2519 sfp_soft_stop_poll(sfp); in sfp_sm_main()
2520 sfp_sm_next(sfp, SFP_S_DOWN, 0); in sfp_sm_main()
2525 switch (sfp->sm_state) { in sfp_sm_main()
2527 if (sfp->sm_mod_state != SFP_MOD_PRESENT || in sfp_sm_main()
2528 sfp->sm_dev_state != SFP_DEV_UP) in sfp_sm_main()
2535 if (sfp->have_a2) in sfp_sm_main()
2536 sfp_soft_start_poll(sfp); in sfp_sm_main()
2538 sfp_module_tx_enable(sfp); in sfp_sm_main()
2541 sfp->sm_fault_retries = N_FAULT_INIT; in sfp_sm_main()
2548 sfp_sm_next(sfp, SFP_S_WAIT, sfp->module_t_wait); in sfp_sm_main()
2555 if (sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2561 timeout = sfp->module_t_start_up; in sfp_sm_main()
2562 if (timeout > sfp->module_t_wait) in sfp_sm_main()
2563 timeout -= sfp->module_t_wait; in sfp_sm_main()
2567 sfp_sm_next(sfp, SFP_S_INIT, timeout); in sfp_sm_main()
2577 if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2581 sfp_sm_fault(sfp, SFP_S_INIT_TX_FAULT, in sfp_sm_main()
2582 sfp->sm_fault_retries == N_FAULT_INIT); in sfp_sm_main()
2586 ret = sfp_sm_add_mdio_bus(sfp); in sfp_sm_main()
2588 sfp_sm_next(sfp, SFP_S_FAIL, 0); in sfp_sm_main()
2591 sfp->sm_phy_retries = R_PHY_RETRY; in sfp_sm_main()
2603 ret = sfp_sm_probe_for_phy(sfp); in sfp_sm_main()
2605 if (--sfp->sm_phy_retries) { in sfp_sm_main()
2606 sfp_sm_next(sfp, SFP_S_INIT_PHY, T_PHY_RETRY); in sfp_sm_main()
2609 dev_info(sfp->dev, "no PHY detected\n"); in sfp_sm_main()
2612 sfp_sm_next(sfp, SFP_S_FAIL, 0); in sfp_sm_main()
2615 if (sfp_module_start(sfp->sfp_bus)) { in sfp_sm_main()
2616 sfp_sm_next(sfp, SFP_S_FAIL, 0); in sfp_sm_main()
2619 sfp_sm_link_check_los(sfp); in sfp_sm_main()
2622 sfp->sm_fault_retries = N_FAULT; in sfp_sm_main()
2627 sfp_module_tx_fault_reset(sfp); in sfp_sm_main()
2628 sfp_sm_next(sfp, SFP_S_INIT, sfp->module_t_start_up); in sfp_sm_main()
2634 sfp_sm_fault(sfp, SFP_S_TX_FAULT, true); in sfp_sm_main()
2635 else if (sfp_los_event_inactive(sfp, event)) in sfp_sm_main()
2636 sfp_sm_link_up(sfp); in sfp_sm_main()
2641 sfp_sm_link_down(sfp); in sfp_sm_main()
2642 sfp_sm_fault(sfp, SFP_S_TX_FAULT, true); in sfp_sm_main()
2643 } else if (sfp_los_event_active(sfp, event)) { in sfp_sm_main()
2644 sfp_sm_link_down(sfp); in sfp_sm_main()
2645 sfp_sm_next(sfp, SFP_S_WAIT_LOS, 0); in sfp_sm_main()
2651 sfp_module_tx_fault_reset(sfp); in sfp_sm_main()
2652 sfp_sm_next(sfp, SFP_S_REINIT, sfp->module_t_start_up); in sfp_sm_main()
2657 if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2658 sfp_sm_fault(sfp, SFP_S_TX_FAULT, false); in sfp_sm_main()
2660 dev_info(sfp->dev, "module transmit fault recovered\n"); in sfp_sm_main()
2661 sfp_sm_link_check_los(sfp); in sfp_sm_main()
2670 static void __sfp_sm_event(struct sfp *sfp, unsigned int event) in __sfp_sm_event() argument
2672 dev_dbg(sfp->dev, "SM: enter %s:%s:%s event %s\n", in __sfp_sm_event()
2673 mod_state_to_str(sfp->sm_mod_state), in __sfp_sm_event()
2674 dev_state_to_str(sfp->sm_dev_state), in __sfp_sm_event()
2675 sm_state_to_str(sfp->sm_state), in __sfp_sm_event()
2678 sfp_sm_device(sfp, event); in __sfp_sm_event()
2679 sfp_sm_module(sfp, event); in __sfp_sm_event()
2680 sfp_sm_main(sfp, event); in __sfp_sm_event()
2682 dev_dbg(sfp->dev, "SM: exit %s:%s:%s\n", in __sfp_sm_event()
2683 mod_state_to_str(sfp->sm_mod_state), in __sfp_sm_event()
2684 dev_state_to_str(sfp->sm_dev_state), in __sfp_sm_event()
2685 sm_state_to_str(sfp->sm_state)); in __sfp_sm_event()
2688 static void sfp_sm_event(struct sfp *sfp, unsigned int event) in sfp_sm_event() argument
2690 mutex_lock(&sfp->sm_mutex); in sfp_sm_event()
2691 __sfp_sm_event(sfp, event); in sfp_sm_event()
2692 mutex_unlock(&sfp->sm_mutex); in sfp_sm_event()
2695 static void sfp_attach(struct sfp *sfp) in sfp_attach() argument
2697 sfp_sm_event(sfp, SFP_E_DEV_ATTACH); in sfp_attach()
2700 static void sfp_detach(struct sfp *sfp) in sfp_detach() argument
2702 sfp_sm_event(sfp, SFP_E_DEV_DETACH); in sfp_detach()
2705 static void sfp_start(struct sfp *sfp) in sfp_start() argument
2707 sfp_sm_event(sfp, SFP_E_DEV_UP); in sfp_start()
2710 static void sfp_stop(struct sfp *sfp) in sfp_stop() argument
2712 sfp_sm_event(sfp, SFP_E_DEV_DOWN); in sfp_stop()
2715 static void sfp_set_signal_rate(struct sfp *sfp, unsigned int rate_kbd) in sfp_set_signal_rate() argument
2719 sfp->rate_kbd = rate_kbd; in sfp_set_signal_rate()
2721 if (rate_kbd > sfp->rs_threshold_kbd) in sfp_set_signal_rate()
2722 set = sfp->rs_state_mask; in sfp_set_signal_rate()
2726 sfp_mod_state(sfp, SFP_F_RS0 | SFP_F_RS1, set); in sfp_set_signal_rate()
2729 static int sfp_module_info(struct sfp *sfp, struct ethtool_modinfo *modinfo) in sfp_module_info() argument
2733 if (sfp->id.ext.sff8472_compliance && in sfp_module_info()
2734 !(sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE)) { in sfp_module_info()
2744 static int sfp_module_eeprom(struct sfp *sfp, struct ethtool_eeprom *ee, in sfp_module_eeprom() argument
2750 if (!(sfp->state & SFP_F_PRESENT)) in sfp_module_eeprom()
2762 ret = sfp_read(sfp, false, first, data, len); in sfp_module_eeprom()
2774 ret = sfp_read(sfp, true, first, data, len); in sfp_module_eeprom()
2781 static int sfp_module_eeprom_by_page(struct sfp *sfp, in sfp_module_eeprom_by_page() argument
2785 if (!(sfp->state & SFP_F_PRESENT)) in sfp_module_eeprom_by_page()
2804 return sfp_read(sfp, page->i2c_address == 0x51, page->offset, in sfp_module_eeprom_by_page()
2821 struct sfp *sfp = container_of(work, struct sfp, timeout.work); in sfp_timeout() local
2824 sfp_sm_event(sfp, SFP_E_TIMEOUT); in sfp_timeout()
2828 static void sfp_check_state(struct sfp *sfp) in sfp_check_state() argument
2833 mutex_lock(&sfp->st_mutex); in sfp_check_state()
2834 state = sfp_get_state(sfp); in sfp_check_state()
2835 changed = state ^ sfp->state; in sfp_check_state()
2836 if (sfp->tx_fault_ignore) in sfp_check_state()
2843 dev_dbg(sfp->dev, "%s %u -> %u\n", gpio_names[i], in sfp_check_state()
2844 !!(sfp->state & BIT(i)), !!(state & BIT(i))); in sfp_check_state()
2846 state |= sfp->state & SFP_F_OUTPUTS; in sfp_check_state()
2847 sfp->state = state; in sfp_check_state()
2848 mutex_unlock(&sfp->st_mutex); in sfp_check_state()
2850 mutex_lock(&sfp->sm_mutex); in sfp_check_state()
2852 __sfp_sm_event(sfp, state & SFP_F_PRESENT ? in sfp_check_state()
2856 __sfp_sm_event(sfp, state & SFP_F_TX_FAULT ? in sfp_check_state()
2860 __sfp_sm_event(sfp, state & SFP_F_LOS ? in sfp_check_state()
2862 mutex_unlock(&sfp->sm_mutex); in sfp_check_state()
2868 struct sfp *sfp = data; in sfp_irq() local
2870 sfp_check_state(sfp); in sfp_irq()
2877 struct sfp *sfp = container_of(work, struct sfp, poll.work); in sfp_poll() local
2879 sfp_check_state(sfp); in sfp_poll()
2883 if (sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT) || in sfp_poll()
2884 sfp->need_poll) in sfp_poll()
2885 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_poll()
2888 static struct sfp *sfp_alloc(struct device *dev) in sfp_alloc()
2890 struct sfp *sfp; in sfp_alloc() local
2892 sfp = kzalloc(sizeof(*sfp), GFP_KERNEL); in sfp_alloc()
2893 if (!sfp) in sfp_alloc()
2896 sfp->dev = dev; in sfp_alloc()
2897 sfp->i2c_block_size = SFP_EEPROM_BLOCK_SIZE; in sfp_alloc()
2899 mutex_init(&sfp->sm_mutex); in sfp_alloc()
2900 mutex_init(&sfp->st_mutex); in sfp_alloc()
2901 INIT_DELAYED_WORK(&sfp->poll, sfp_poll); in sfp_alloc()
2902 INIT_DELAYED_WORK(&sfp->timeout, sfp_timeout); in sfp_alloc()
2904 sfp_hwmon_init(sfp); in sfp_alloc()
2906 return sfp; in sfp_alloc()
2911 struct sfp *sfp = data; in sfp_cleanup() local
2913 sfp_hwmon_exit(sfp); in sfp_cleanup()
2915 cancel_delayed_work_sync(&sfp->poll); in sfp_cleanup()
2916 cancel_delayed_work_sync(&sfp->timeout); in sfp_cleanup()
2917 if (sfp->i2c_mii) { in sfp_cleanup()
2918 mdiobus_unregister(sfp->i2c_mii); in sfp_cleanup()
2919 mdiobus_free(sfp->i2c_mii); in sfp_cleanup()
2921 if (sfp->i2c) in sfp_cleanup()
2922 i2c_put_adapter(sfp->i2c); in sfp_cleanup()
2923 kfree(sfp); in sfp_cleanup()
2926 static int sfp_i2c_get(struct sfp *sfp) in sfp_i2c_get() argument
2932 h = fwnode_find_reference(dev_fwnode(sfp->dev), "i2c-bus", 0); in sfp_i2c_get()
2934 dev_err(sfp->dev, "missing 'i2c-bus' property\n"); in sfp_i2c_get()
2944 err = sfp_i2c_configure(sfp, i2c); in sfp_i2c_get()
2956 struct sfp *sfp; in sfp_probe() local
2959 sfp = sfp_alloc(&pdev->dev); in sfp_probe()
2960 if (IS_ERR(sfp)) in sfp_probe()
2961 return PTR_ERR(sfp); in sfp_probe()
2963 platform_set_drvdata(pdev, sfp); in sfp_probe()
2965 err = devm_add_action_or_reset(sfp->dev, sfp_cleanup, sfp); in sfp_probe()
2969 sff = device_get_match_data(sfp->dev); in sfp_probe()
2973 sfp->type = sff; in sfp_probe()
2975 err = sfp_i2c_get(sfp); in sfp_probe()
2981 sfp->gpio[i] = devm_gpiod_get_optional(sfp->dev, in sfp_probe()
2983 if (IS_ERR(sfp->gpio[i])) in sfp_probe()
2984 return PTR_ERR(sfp->gpio[i]); in sfp_probe()
2987 sfp->state_hw_mask = SFP_F_PRESENT; in sfp_probe()
2988 sfp->state_hw_drive = SFP_F_TX_DISABLE; in sfp_probe()
2990 sfp->get_state = sfp_gpio_get_state; in sfp_probe()
2991 sfp->set_state = sfp_gpio_set_state; in sfp_probe()
2994 if (!(sfp->gpio[GPIO_MODDEF0])) in sfp_probe()
2995 sfp->get_state = sff_gpio_get_state; in sfp_probe()
2998 &sfp->max_power_mW); in sfp_probe()
2999 if (sfp->max_power_mW < 1000) { in sfp_probe()
3000 if (sfp->max_power_mW) in sfp_probe()
3001 dev_warn(sfp->dev, in sfp_probe()
3003 sfp->max_power_mW = 1000; in sfp_probe()
3006 dev_info(sfp->dev, "Host maximum power %u.%uW\n", in sfp_probe()
3007 sfp->max_power_mW / 1000, (sfp->max_power_mW / 100) % 10); in sfp_probe()
3012 sfp->state = sfp_get_state(sfp) | SFP_F_TX_DISABLE; in sfp_probe()
3014 if (sfp->gpio[GPIO_RS0] && in sfp_probe()
3015 gpiod_get_value_cansleep(sfp->gpio[GPIO_RS0])) in sfp_probe()
3016 sfp->state |= SFP_F_RS0; in sfp_probe()
3017 sfp_set_state(sfp, sfp->state); in sfp_probe()
3018 sfp_module_tx_disable(sfp); in sfp_probe()
3019 if (sfp->state & SFP_F_PRESENT) { in sfp_probe()
3021 sfp_sm_event(sfp, SFP_E_INSERT); in sfp_probe()
3026 if (gpio_flags[i] != GPIOD_IN || !sfp->gpio[i]) in sfp_probe()
3029 sfp->gpio_irq[i] = gpiod_to_irq(sfp->gpio[i]); in sfp_probe()
3030 if (sfp->gpio_irq[i] < 0) { in sfp_probe()
3031 sfp->gpio_irq[i] = 0; in sfp_probe()
3032 sfp->need_poll = true; in sfp_probe()
3036 sfp_irq_name = devm_kasprintf(sfp->dev, GFP_KERNEL, in sfp_probe()
3037 "%s-%s", dev_name(sfp->dev), in sfp_probe()
3043 err = devm_request_threaded_irq(sfp->dev, sfp->gpio_irq[i], in sfp_probe()
3048 sfp_irq_name, sfp); in sfp_probe()
3050 sfp->gpio_irq[i] = 0; in sfp_probe()
3051 sfp->need_poll = true; in sfp_probe()
3055 if (sfp->need_poll) in sfp_probe()
3056 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_probe()
3063 if (!sfp->gpio[GPIO_TX_DISABLE]) in sfp_probe()
3064 dev_warn(sfp->dev, in sfp_probe()
3065 "No tx_disable pin: SFP modules will always be emitting.\n"); in sfp_probe()
3067 sfp->sfp_bus = sfp_register_socket(sfp->dev, sfp, &sfp_module_ops); in sfp_probe()
3068 if (!sfp->sfp_bus) in sfp_probe()
3071 sfp_debugfs_init(sfp); in sfp_probe()
3078 struct sfp *sfp = platform_get_drvdata(pdev); in sfp_remove() local
3080 sfp_debugfs_exit(sfp); in sfp_remove()
3081 sfp_unregister_socket(sfp->sfp_bus); in sfp_remove()
3084 sfp_sm_event(sfp, SFP_E_REMOVE); in sfp_remove()
3092 struct sfp *sfp = platform_get_drvdata(pdev); in sfp_shutdown() local
3096 if (!sfp->gpio_irq[i]) in sfp_shutdown()
3099 devm_free_irq(sfp->dev, sfp->gpio_irq[i], sfp); in sfp_shutdown()
3102 cancel_delayed_work_sync(&sfp->poll); in sfp_shutdown()
3103 cancel_delayed_work_sync(&sfp->timeout); in sfp_shutdown()
3111 .name = "sfp",
3130 MODULE_ALIAS("platform:sfp");