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()
452 // Fiberstore SFP-10G-T doesn't identify as copper, and uses the
454 SFP_QUIRK_F("FS", "SFP-10G-T", sfp_fixup_fs_10gt),
473 SFP_QUIRK_M("FS", "SFP-2.5G-T", sfp_quirk_oem_2_5g),
486 // OEM SFP-GE-T is a 1000Base-T module with broken TX_FAULT indicator
487 SFP_QUIRK_F("OEM", "SFP-GE-T", sfp_fixup_ignore_tx_fault),
489 SFP_QUIRK_F("OEM", "SFP-10G-T", sfp_fixup_rollball_cc),
490 SFP_QUIRK_M("OEM", "SFP-2.5G-T", sfp_quirk_oem_2_5g),
491 SFP_QUIRK_M("OEM", "SFP-2.5G-BX10-D", sfp_quirk_2500basex),
492 SFP_QUIRK_M("OEM", "SFP-2.5G-BX10-U", sfp_quirk_2500basex),
541 static unsigned int sfp_gpio_get_state(struct sfp *sfp) in sfp_gpio_get_state() argument
546 if (gpio_flags[i] != GPIOD_IN || !sfp->gpio[i]) in sfp_gpio_get_state()
549 v = gpiod_get_value_cansleep(sfp->gpio[i]); in sfp_gpio_get_state()
557 static unsigned int sff_gpio_get_state(struct sfp *sfp) in sff_gpio_get_state() argument
559 return sfp_gpio_get_state(sfp) | SFP_F_PRESENT; in sff_gpio_get_state()
562 static void sfp_gpio_set_state(struct sfp *sfp, unsigned int state) in sfp_gpio_set_state() argument
568 drive = sfp->state_hw_drive; in sfp_gpio_set_state()
573 if (sfp->gpio[GPIO_TX_DISABLE]) { in sfp_gpio_set_state()
575 gpiod_direction_output(sfp->gpio[GPIO_TX_DISABLE], in sfp_gpio_set_state()
578 gpiod_direction_input(sfp->gpio[GPIO_TX_DISABLE]); in sfp_gpio_set_state()
581 if (sfp->gpio[GPIO_RS0]) { in sfp_gpio_set_state()
583 gpiod_direction_output(sfp->gpio[GPIO_RS0], in sfp_gpio_set_state()
586 gpiod_direction_input(sfp->gpio[GPIO_RS0]); in sfp_gpio_set_state()
589 if (sfp->gpio[GPIO_RS1]) { in sfp_gpio_set_state()
591 gpiod_direction_output(sfp->gpio[GPIO_RS1], in sfp_gpio_set_state()
594 gpiod_direction_input(sfp->gpio[GPIO_RS1]); in sfp_gpio_set_state()
598 static int sfp_i2c_read(struct sfp *sfp, bool a2, u8 dev_addr, void *buf, in sfp_i2c_read() argument
603 size_t block_size = sfp->i2c_block_size; in sfp_i2c_read()
623 ret = i2c_transfer(sfp->i2c, msgs, ARRAY_SIZE(msgs)); in sfp_i2c_read()
638 static int sfp_i2c_write(struct sfp *sfp, bool a2, u8 dev_addr, void *buf, in sfp_i2c_write() argument
655 ret = i2c_transfer(sfp->i2c, msgs, ARRAY_SIZE(msgs)); in sfp_i2c_write()
665 static int sfp_i2c_configure(struct sfp *sfp, struct i2c_adapter *i2c) in sfp_i2c_configure() argument
670 sfp->i2c = i2c; in sfp_i2c_configure()
671 sfp->read = sfp_i2c_read; in sfp_i2c_configure()
672 sfp->write = sfp_i2c_write; in sfp_i2c_configure()
677 static int sfp_i2c_mdiobus_create(struct sfp *sfp) in sfp_i2c_mdiobus_create() argument
682 i2c_mii = mdio_i2c_alloc(sfp->dev, sfp->i2c, sfp->mdio_protocol); in sfp_i2c_mdiobus_create()
686 i2c_mii->name = "SFP I2C Bus"; in sfp_i2c_mdiobus_create()
695 sfp->i2c_mii = i2c_mii; in sfp_i2c_mdiobus_create()
700 static void sfp_i2c_mdiobus_destroy(struct sfp *sfp) in sfp_i2c_mdiobus_destroy() argument
702 mdiobus_unregister(sfp->i2c_mii); in sfp_i2c_mdiobus_destroy()
703 sfp->i2c_mii = NULL; in sfp_i2c_mdiobus_destroy()
707 static int sfp_read(struct sfp *sfp, bool a2, u8 addr, void *buf, size_t len) in sfp_read() argument
709 return sfp->read(sfp, a2, addr, buf, len); in sfp_read()
712 static int sfp_write(struct sfp *sfp, bool a2, u8 addr, void *buf, size_t len) in sfp_write() argument
714 return sfp->write(sfp, a2, addr, buf, len); in sfp_write()
717 static int sfp_modify_u8(struct sfp *sfp, bool a2, u8 addr, u8 mask, u8 val) in sfp_modify_u8() argument
722 ret = sfp_read(sfp, a2, addr, &old, sizeof(old)); in sfp_modify_u8()
730 return sfp_write(sfp, a2, addr, &v, sizeof(v)); in sfp_modify_u8()
733 static unsigned int sfp_soft_get_state(struct sfp *sfp) in sfp_soft_get_state() argument
739 ret = sfp_read(sfp, true, SFP_STATUS, &status, sizeof(status)); in sfp_soft_get_state()
746 dev_err_ratelimited(sfp->dev, in sfp_soft_get_state()
747 "failed to read SFP soft status: %pe\n", in sfp_soft_get_state()
750 state = sfp->state; in sfp_soft_get_state()
753 return state & sfp->state_soft_mask; in sfp_soft_get_state()
756 static void sfp_soft_set_state(struct sfp *sfp, unsigned int state, in sfp_soft_set_state() argument
773 sfp_modify_u8(sfp, true, SFP_STATUS, mask, val); in sfp_soft_set_state()
782 sfp_modify_u8(sfp, true, SFP_EXT_STATUS, mask, val); in sfp_soft_set_state()
785 static void sfp_soft_start_poll(struct sfp *sfp) in sfp_soft_start_poll() argument
787 const struct sfp_eeprom_id *id = &sfp->id; in sfp_soft_start_poll()
797 mask |= sfp->rs_state_mask; in sfp_soft_start_poll()
799 mutex_lock(&sfp->st_mutex); in sfp_soft_start_poll()
801 sfp->state_soft_mask = ~sfp->state_hw_mask & mask; in sfp_soft_start_poll()
803 if (sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT) && in sfp_soft_start_poll()
804 !sfp->need_poll) in sfp_soft_start_poll()
805 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_soft_start_poll()
806 mutex_unlock(&sfp->st_mutex); in sfp_soft_start_poll()
809 static void sfp_soft_stop_poll(struct sfp *sfp) in sfp_soft_stop_poll() argument
811 mutex_lock(&sfp->st_mutex); in sfp_soft_stop_poll()
812 sfp->state_soft_mask = 0; in sfp_soft_stop_poll()
813 mutex_unlock(&sfp->st_mutex); in sfp_soft_stop_poll()
819 static unsigned int sfp_get_state(struct sfp *sfp) in sfp_get_state() argument
821 unsigned int soft = sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT); in sfp_get_state()
824 state = sfp->get_state(sfp) & sfp->state_hw_mask; in sfp_get_state()
826 state |= sfp_soft_get_state(sfp); in sfp_get_state()
834 static void sfp_set_state(struct sfp *sfp, unsigned int state) in sfp_set_state() argument
838 sfp->set_state(sfp, state); in sfp_set_state()
840 soft = sfp->state_soft_mask & SFP_F_OUTPUTS; in sfp_set_state()
842 sfp_soft_set_state(sfp, state, soft); in sfp_set_state()
845 static void sfp_mod_state(struct sfp *sfp, unsigned int mask, unsigned int set) in sfp_mod_state() argument
847 mutex_lock(&sfp->st_mutex); in sfp_mod_state()
848 sfp->state = (sfp->state & ~mask) | set; in sfp_mod_state()
849 sfp_set_state(sfp, sfp->state); in sfp_mod_state()
850 mutex_unlock(&sfp->st_mutex); in sfp_mod_state()
869 const struct sfp *sfp = data; in sfp_hwmon_is_visible() local
882 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
901 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
920 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
936 if (sfp->id.ext.diagmon & SFP_DIAGMON_EXT_CAL && in sfp_hwmon_is_visible()
948 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
962 static int sfp_hwmon_read_sensor(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_sensor() argument
967 err = sfp_read(sfp, true, reg, &val, sizeof(val)); in sfp_hwmon_read_sensor()
981 static void sfp_hwmon_calibrate(struct sfp *sfp, unsigned int slope, int offset, in sfp_hwmon_calibrate() argument
984 if (sfp->id.ext.diagmon & SFP_DIAGMON_EXT_CAL) in sfp_hwmon_calibrate()
988 static void sfp_hwmon_calibrate_temp(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_temp() argument
990 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_t_slope), in sfp_hwmon_calibrate_temp()
991 be16_to_cpu(sfp->diag.cal_t_offset), value); in sfp_hwmon_calibrate_temp()
999 static void sfp_hwmon_calibrate_vcc(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_vcc() argument
1001 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_v_slope), in sfp_hwmon_calibrate_vcc()
1002 be16_to_cpu(sfp->diag.cal_v_offset), value); in sfp_hwmon_calibrate_vcc()
1007 static void sfp_hwmon_calibrate_bias(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_bias() argument
1009 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_txi_slope), in sfp_hwmon_calibrate_bias()
1010 be16_to_cpu(sfp->diag.cal_txi_offset), value); in sfp_hwmon_calibrate_bias()
1015 static void sfp_hwmon_calibrate_tx_power(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_tx_power() argument
1017 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_txpwr_slope), in sfp_hwmon_calibrate_tx_power()
1018 be16_to_cpu(sfp->diag.cal_txpwr_offset), value); in sfp_hwmon_calibrate_tx_power()
1023 static int sfp_hwmon_read_temp(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_temp() argument
1027 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_temp()
1031 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_read_temp()
1036 static int sfp_hwmon_read_vcc(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_vcc() argument
1040 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_vcc()
1044 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_read_vcc()
1049 static int sfp_hwmon_read_bias(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_bias() argument
1053 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_bias()
1057 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_read_bias()
1062 static int sfp_hwmon_read_tx_power(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_tx_power() argument
1066 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_tx_power()
1070 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_read_tx_power()
1075 static int sfp_hwmon_read_rx_power(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_rx_power() argument
1079 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_rx_power()
1088 static int sfp_hwmon_temp(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_temp() argument
1095 return sfp_hwmon_read_temp(sfp, SFP_TEMP, value); in sfp_hwmon_temp()
1098 *value = be16_to_cpu(sfp->diag.temp_low_alarm); in sfp_hwmon_temp()
1099 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
1103 *value = be16_to_cpu(sfp->diag.temp_low_warn); in sfp_hwmon_temp()
1104 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
1107 *value = be16_to_cpu(sfp->diag.temp_high_warn); in sfp_hwmon_temp()
1108 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
1112 *value = be16_to_cpu(sfp->diag.temp_high_alarm); in sfp_hwmon_temp()
1113 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
1117 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_temp()
1125 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_temp()
1133 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_temp()
1141 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_temp()
1154 static int sfp_hwmon_vcc(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_vcc() argument
1161 return sfp_hwmon_read_vcc(sfp, SFP_VCC, value); in sfp_hwmon_vcc()
1164 *value = be16_to_cpu(sfp->diag.volt_low_alarm); in sfp_hwmon_vcc()
1165 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
1169 *value = be16_to_cpu(sfp->diag.volt_low_warn); in sfp_hwmon_vcc()
1170 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
1174 *value = be16_to_cpu(sfp->diag.volt_high_warn); in sfp_hwmon_vcc()
1175 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
1179 *value = be16_to_cpu(sfp->diag.volt_high_alarm); in sfp_hwmon_vcc()
1180 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
1184 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_vcc()
1192 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_vcc()
1200 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_vcc()
1208 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_vcc()
1221 static int sfp_hwmon_bias(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_bias() argument
1228 return sfp_hwmon_read_bias(sfp, SFP_TX_BIAS, value); in sfp_hwmon_bias()
1231 *value = be16_to_cpu(sfp->diag.bias_low_alarm); in sfp_hwmon_bias()
1232 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
1236 *value = be16_to_cpu(sfp->diag.bias_low_warn); in sfp_hwmon_bias()
1237 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
1241 *value = be16_to_cpu(sfp->diag.bias_high_warn); in sfp_hwmon_bias()
1242 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
1246 *value = be16_to_cpu(sfp->diag.bias_high_alarm); in sfp_hwmon_bias()
1247 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
1251 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_bias()
1259 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_bias()
1267 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_bias()
1275 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_bias()
1288 static int sfp_hwmon_tx_power(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_tx_power() argument
1295 return sfp_hwmon_read_tx_power(sfp, SFP_TX_POWER, value); in sfp_hwmon_tx_power()
1298 *value = be16_to_cpu(sfp->diag.txpwr_low_alarm); in sfp_hwmon_tx_power()
1299 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1303 *value = be16_to_cpu(sfp->diag.txpwr_low_warn); in sfp_hwmon_tx_power()
1304 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1308 *value = be16_to_cpu(sfp->diag.txpwr_high_warn); in sfp_hwmon_tx_power()
1309 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1313 *value = be16_to_cpu(sfp->diag.txpwr_high_alarm); in sfp_hwmon_tx_power()
1314 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1318 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1326 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1334 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1342 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1355 static int sfp_hwmon_rx_power(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_rx_power() argument
1362 return sfp_hwmon_read_rx_power(sfp, SFP_RX_POWER, value); in sfp_hwmon_rx_power()
1365 *value = be16_to_cpu(sfp->diag.rxpwr_low_alarm); in sfp_hwmon_rx_power()
1370 *value = be16_to_cpu(sfp->diag.rxpwr_low_warn); in sfp_hwmon_rx_power()
1375 *value = be16_to_cpu(sfp->diag.rxpwr_high_warn); in sfp_hwmon_rx_power()
1380 *value = be16_to_cpu(sfp->diag.rxpwr_high_alarm); in sfp_hwmon_rx_power()
1385 err = sfp_read(sfp, true, SFP_ALARM1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1393 err = sfp_read(sfp, true, SFP_WARN1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1401 err = sfp_read(sfp, true, SFP_WARN1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1409 err = sfp_read(sfp, true, SFP_ALARM1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1425 struct sfp *sfp = dev_get_drvdata(dev); in sfp_hwmon_read() local
1429 return sfp_hwmon_temp(sfp, attr, value); in sfp_hwmon_read()
1431 return sfp_hwmon_vcc(sfp, attr, value); in sfp_hwmon_read()
1433 return sfp_hwmon_bias(sfp, attr, value); in sfp_hwmon_read()
1437 return sfp_hwmon_tx_power(sfp, attr, value); in sfp_hwmon_read()
1439 return sfp_hwmon_rx_power(sfp, attr, value); in sfp_hwmon_read()
1556 struct sfp *sfp = container_of(work, struct sfp, hwmon_probe.work); in sfp_hwmon_probe() local
1565 if (sfp->i2c_block_size < 2) { in sfp_hwmon_probe()
1566 dev_info(sfp->dev, in sfp_hwmon_probe()
1568 dev_info(sfp->dev, in sfp_hwmon_probe()
1573 err = sfp_read(sfp, true, 0, &sfp->diag, sizeof(sfp->diag)); in sfp_hwmon_probe()
1575 if (sfp->hwmon_tries--) { in sfp_hwmon_probe()
1576 mod_delayed_work(system_wq, &sfp->hwmon_probe, in sfp_hwmon_probe()
1579 dev_warn(sfp->dev, "hwmon probe failed: %pe\n", in sfp_hwmon_probe()
1585 sfp->hwmon_name = hwmon_sanitize_name(dev_name(sfp->dev)); in sfp_hwmon_probe()
1586 if (IS_ERR(sfp->hwmon_name)) { in sfp_hwmon_probe()
1587 dev_err(sfp->dev, "out of memory for hwmon name\n"); in sfp_hwmon_probe()
1591 sfp->hwmon_dev = hwmon_device_register_with_info(sfp->dev, in sfp_hwmon_probe()
1592 sfp->hwmon_name, sfp, in sfp_hwmon_probe()
1595 if (IS_ERR(sfp->hwmon_dev)) in sfp_hwmon_probe()
1596 dev_err(sfp->dev, "failed to register hwmon device: %ld\n", in sfp_hwmon_probe()
1597 PTR_ERR(sfp->hwmon_dev)); in sfp_hwmon_probe()
1600 static int sfp_hwmon_insert(struct sfp *sfp) in sfp_hwmon_insert() argument
1602 if (sfp->have_a2 && sfp->id.ext.diagmon & SFP_DIAGMON_DDM) { in sfp_hwmon_insert()
1603 mod_delayed_work(system_wq, &sfp->hwmon_probe, 1); in sfp_hwmon_insert()
1604 sfp->hwmon_tries = R_PROBE_RETRY_SLOW; in sfp_hwmon_insert()
1610 static void sfp_hwmon_remove(struct sfp *sfp) in sfp_hwmon_remove() argument
1612 cancel_delayed_work_sync(&sfp->hwmon_probe); in sfp_hwmon_remove()
1613 if (!IS_ERR_OR_NULL(sfp->hwmon_dev)) { in sfp_hwmon_remove()
1614 hwmon_device_unregister(sfp->hwmon_dev); in sfp_hwmon_remove()
1615 sfp->hwmon_dev = NULL; in sfp_hwmon_remove()
1616 kfree(sfp->hwmon_name); in sfp_hwmon_remove()
1620 static int sfp_hwmon_init(struct sfp *sfp) in sfp_hwmon_init() argument
1622 INIT_DELAYED_WORK(&sfp->hwmon_probe, sfp_hwmon_probe); in sfp_hwmon_init()
1627 static void sfp_hwmon_exit(struct sfp *sfp) in sfp_hwmon_exit() argument
1629 cancel_delayed_work_sync(&sfp->hwmon_probe); in sfp_hwmon_exit()
1632 static int sfp_hwmon_insert(struct sfp *sfp) in sfp_hwmon_insert() argument
1637 static void sfp_hwmon_remove(struct sfp *sfp) in sfp_hwmon_remove() argument
1641 static int sfp_hwmon_init(struct sfp *sfp) in sfp_hwmon_init() argument
1646 static void sfp_hwmon_exit(struct sfp *sfp) in sfp_hwmon_exit() argument
1652 static void sfp_module_tx_disable(struct sfp *sfp) in sfp_module_tx_disable() argument
1654 dev_dbg(sfp->dev, "tx disable %u -> %u\n", in sfp_module_tx_disable()
1655 sfp->state & SFP_F_TX_DISABLE ? 1 : 0, 1); in sfp_module_tx_disable()
1656 sfp_mod_state(sfp, SFP_F_TX_DISABLE, SFP_F_TX_DISABLE); in sfp_module_tx_disable()
1659 static void sfp_module_tx_enable(struct sfp *sfp) in sfp_module_tx_enable() argument
1661 dev_dbg(sfp->dev, "tx disable %u -> %u\n", in sfp_module_tx_enable()
1662 sfp->state & SFP_F_TX_DISABLE ? 1 : 0, 0); in sfp_module_tx_enable()
1663 sfp_mod_state(sfp, SFP_F_TX_DISABLE, 0); in sfp_module_tx_enable()
1669 struct sfp *sfp = s->private; in sfp_debug_state_show() local
1672 mod_state_to_str(sfp->sm_mod_state)); in sfp_debug_state_show()
1674 R_PROBE_RETRY_INIT - sfp->sm_mod_tries_init, in sfp_debug_state_show()
1675 R_PROBE_RETRY_SLOW - sfp->sm_mod_tries); in sfp_debug_state_show()
1677 dev_state_to_str(sfp->sm_dev_state)); in sfp_debug_state_show()
1679 sm_state_to_str(sfp->sm_state)); in sfp_debug_state_show()
1681 sfp->sm_fault_retries); in sfp_debug_state_show()
1683 sfp->sm_phy_retries); in sfp_debug_state_show()
1684 seq_printf(s, "Signalling rate: %u kBd\n", sfp->rate_kbd); in sfp_debug_state_show()
1686 sfp->rs_threshold_kbd); in sfp_debug_state_show()
1687 seq_printf(s, "moddef0: %d\n", !!(sfp->state & SFP_F_PRESENT)); in sfp_debug_state_show()
1688 seq_printf(s, "rx_los: %d\n", !!(sfp->state & SFP_F_LOS)); in sfp_debug_state_show()
1689 seq_printf(s, "tx_fault: %d\n", !!(sfp->state & SFP_F_TX_FAULT)); in sfp_debug_state_show()
1690 seq_printf(s, "tx_disable: %d\n", !!(sfp->state & SFP_F_TX_DISABLE)); in sfp_debug_state_show()
1691 seq_printf(s, "rs0: %d\n", !!(sfp->state & SFP_F_RS0)); in sfp_debug_state_show()
1692 seq_printf(s, "rs1: %d\n", !!(sfp->state & SFP_F_RS1)); in sfp_debug_state_show()
1697 static void sfp_debugfs_init(struct sfp *sfp) in sfp_debugfs_init() argument
1699 sfp->debugfs_dir = debugfs_create_dir(dev_name(sfp->dev), NULL); in sfp_debugfs_init()
1701 debugfs_create_file("state", 0600, sfp->debugfs_dir, sfp, in sfp_debugfs_init()
1705 static void sfp_debugfs_exit(struct sfp *sfp) in sfp_debugfs_exit() argument
1707 debugfs_remove_recursive(sfp->debugfs_dir); in sfp_debugfs_exit()
1710 static void sfp_debugfs_init(struct sfp *sfp) in sfp_debugfs_init() argument
1714 static void sfp_debugfs_exit(struct sfp *sfp) in sfp_debugfs_exit() argument
1719 static void sfp_module_tx_fault_reset(struct sfp *sfp) in sfp_module_tx_fault_reset() argument
1723 mutex_lock(&sfp->st_mutex); in sfp_module_tx_fault_reset()
1724 state = sfp->state; in sfp_module_tx_fault_reset()
1726 sfp_set_state(sfp, state | SFP_F_TX_DISABLE); in sfp_module_tx_fault_reset()
1730 sfp_set_state(sfp, state); in sfp_module_tx_fault_reset()
1732 mutex_unlock(&sfp->st_mutex); in sfp_module_tx_fault_reset()
1735 /* SFP state machine */
1736 static void sfp_sm_set_timer(struct sfp *sfp, unsigned int timeout) in sfp_sm_set_timer() argument
1739 mod_delayed_work(system_power_efficient_wq, &sfp->timeout, in sfp_sm_set_timer()
1742 cancel_delayed_work(&sfp->timeout); in sfp_sm_set_timer()
1745 static void sfp_sm_next(struct sfp *sfp, unsigned int state, in sfp_sm_next() argument
1748 sfp->sm_state = state; in sfp_sm_next()
1749 sfp_sm_set_timer(sfp, timeout); in sfp_sm_next()
1752 static void sfp_sm_mod_next(struct sfp *sfp, unsigned int state, in sfp_sm_mod_next() argument
1755 sfp->sm_mod_state = state; in sfp_sm_mod_next()
1756 sfp_sm_set_timer(sfp, timeout); in sfp_sm_mod_next()
1759 static void sfp_sm_phy_detach(struct sfp *sfp) in sfp_sm_phy_detach() argument
1761 sfp_remove_phy(sfp->sfp_bus); in sfp_sm_phy_detach()
1762 phy_device_remove(sfp->mod_phy); in sfp_sm_phy_detach()
1763 phy_device_free(sfp->mod_phy); in sfp_sm_phy_detach()
1764 sfp->mod_phy = NULL; in sfp_sm_phy_detach()
1767 static int sfp_sm_probe_phy(struct sfp *sfp, int addr, bool is_c45) in sfp_sm_probe_phy() argument
1772 phy = get_phy_device(sfp->i2c_mii, addr, is_c45); in sfp_sm_probe_phy()
1776 dev_err(sfp->dev, "mdiobus scan returned %pe\n", phy); in sfp_sm_probe_phy()
1780 /* Mark this PHY as being on a SFP module */ in sfp_sm_probe_phy()
1786 dev_err(sfp->dev, "phy_device_register failed: %pe\n", in sfp_sm_probe_phy()
1791 err = sfp_add_phy(sfp->sfp_bus, phy); in sfp_sm_probe_phy()
1795 dev_err(sfp->dev, "sfp_add_phy failed: %pe\n", ERR_PTR(err)); in sfp_sm_probe_phy()
1799 sfp->mod_phy = phy; in sfp_sm_probe_phy()
1804 static void sfp_sm_link_up(struct sfp *sfp) in sfp_sm_link_up() argument
1806 sfp_link_up(sfp->sfp_bus); in sfp_sm_link_up()
1807 sfp_sm_next(sfp, SFP_S_LINK_UP, 0); in sfp_sm_link_up()
1810 static void sfp_sm_link_down(struct sfp *sfp) in sfp_sm_link_down() argument
1812 sfp_link_down(sfp->sfp_bus); in sfp_sm_link_down()
1815 static void sfp_sm_link_check_los(struct sfp *sfp) in sfp_sm_link_check_los() argument
1819 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_sm_link_check_los()
1827 los = !(sfp->state & SFP_F_LOS); in sfp_sm_link_check_los()
1829 los = !!(sfp->state & SFP_F_LOS); in sfp_sm_link_check_los()
1832 sfp_sm_next(sfp, SFP_S_WAIT_LOS, 0); in sfp_sm_link_check_los()
1834 sfp_sm_link_up(sfp); in sfp_sm_link_check_los()
1837 static bool sfp_los_event_active(struct sfp *sfp, unsigned int event) in sfp_los_event_active() argument
1841 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_los_event_active()
1847 static bool sfp_los_event_inactive(struct sfp *sfp, unsigned int event) in sfp_los_event_inactive() argument
1851 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_los_event_inactive()
1857 static void sfp_sm_fault(struct sfp *sfp, unsigned int next_state, bool warn) in sfp_sm_fault() argument
1859 if (sfp->sm_fault_retries && !--sfp->sm_fault_retries) { in sfp_sm_fault()
1860 dev_err(sfp->dev, in sfp_sm_fault()
1862 sfp_sm_next(sfp, SFP_S_TX_DISABLE, 0); in sfp_sm_fault()
1865 dev_err(sfp->dev, "module transmit fault indicated\n"); in sfp_sm_fault()
1867 sfp_sm_next(sfp, next_state, T_FAULT_RECOVER); in sfp_sm_fault()
1871 static int sfp_sm_add_mdio_bus(struct sfp *sfp) in sfp_sm_add_mdio_bus() argument
1873 if (sfp->mdio_protocol != MDIO_I2C_NONE) in sfp_sm_add_mdio_bus()
1874 return sfp_i2c_mdiobus_create(sfp); in sfp_sm_add_mdio_bus()
1879 /* Probe a SFP for a PHY device if the module supports copper - the PHY
1883 * Clause 22 copper SFP modules normally operate in Cisco SGMII mode with
1887 * Clause 45 copper SFP+ modules (10G) appear to switch their interface
1890 static int sfp_sm_probe_for_phy(struct sfp *sfp) in sfp_sm_probe_for_phy() argument
1894 switch (sfp->mdio_protocol) { in sfp_sm_probe_for_phy()
1899 err = sfp_sm_probe_phy(sfp, SFP_PHY_ADDR, false); in sfp_sm_probe_for_phy()
1903 err = sfp_sm_probe_phy(sfp, SFP_PHY_ADDR, true); in sfp_sm_probe_for_phy()
1907 err = sfp_sm_probe_phy(sfp, SFP_PHY_ADDR_ROLLBALL, true); in sfp_sm_probe_for_phy()
1914 static int sfp_module_parse_power(struct sfp *sfp) in sfp_module_parse_power() argument
1919 if (sfp->id.ext.sff8472_compliance >= SFP_SFF8472_COMPLIANCE_REV10_2 && in sfp_module_parse_power()
1920 sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_POWER_DECL)) in sfp_module_parse_power()
1923 if (sfp->id.ext.sff8472_compliance >= SFP_SFF8472_COMPLIANCE_REV11_4 && in sfp_module_parse_power()
1924 sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_HIGH_POWER_LEVEL)) in sfp_module_parse_power()
1929 sfp->module_power_mW = power_mW; in sfp_module_parse_power()
1933 supports_a2 = sfp->id.ext.sff8472_compliance != in sfp_module_parse_power()
1935 sfp->id.ext.diagmon & SFP_DIAGMON_DDM; in sfp_module_parse_power()
1937 if (power_mW > sfp->max_power_mW) { in sfp_module_parse_power()
1944 dev_err(sfp->dev, in sfp_module_parse_power()
1949 dev_warn(sfp->dev, in sfp_module_parse_power()
1968 if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE) { in sfp_module_parse_power()
1969 dev_warn(sfp->dev, in sfp_module_parse_power()
1975 sfp->module_power_mW = power_mW; in sfp_module_parse_power()
1980 static int sfp_sm_mod_hpower(struct sfp *sfp, bool enable) in sfp_sm_mod_hpower() argument
1984 err = sfp_modify_u8(sfp, true, SFP_EXT_STATUS, in sfp_sm_mod_hpower()
1988 dev_err(sfp->dev, "failed to %sable high power: %pe\n", in sfp_sm_mod_hpower()
1994 dev_info(sfp->dev, "Module switched to %u.%uW power level\n", in sfp_sm_mod_hpower()
1995 sfp->module_power_mW / 1000, in sfp_sm_mod_hpower()
1996 (sfp->module_power_mW / 100) % 10); in sfp_sm_mod_hpower()
2001 static void sfp_module_parse_rate_select(struct sfp *sfp) in sfp_module_parse_rate_select() argument
2005 sfp->rs_threshold_kbd = 0; in sfp_module_parse_rate_select()
2006 sfp->rs_state_mask = 0; in sfp_module_parse_rate_select()
2008 if (!(sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_RATE_SELECT))) in sfp_module_parse_rate_select()
2018 sfp->rs_state_mask = SFP_F_RS0; in sfp_module_parse_rate_select()
2019 sfp->rs_threshold_kbd = 1594; in sfp_module_parse_rate_select()
2029 rate_id = sfp->id.base.rate_id; in sfp_module_parse_rate_select()
2038 if (sfp->id.ext.sff8472_compliance >= SFP_SFF8472_COMPLIANCE_REV10_2 && in sfp_module_parse_rate_select()
2039 sfp->id.ext.sff8472_compliance < SFP_SFF8472_COMPLIANCE_REV11_0 && in sfp_module_parse_rate_select()
2048 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_APP_SELECT_SFF8079)) { in sfp_module_parse_rate_select()
2054 sfp->rs_threshold_kbd = 2125 - 1; in sfp_module_parse_rate_select()
2055 sfp->rs_state_mask = SFP_F_RS0; in sfp_module_parse_rate_select()
2061 if (sfp->id.ext.sff8472_compliance <= SFP_SFF8472_COMPLIANCE_REV9_5) in sfp_module_parse_rate_select()
2069 sfp->rs_threshold_kbd = 4250; in sfp_module_parse_rate_select()
2070 sfp->rs_state_mask = SFP_F_RS0; in sfp_module_parse_rate_select()
2074 sfp->rs_threshold_kbd = 4250; in sfp_module_parse_rate_select()
2075 sfp->rs_state_mask = SFP_F_RS1; in sfp_module_parse_rate_select()
2079 sfp->rs_threshold_kbd = 4250; in sfp_module_parse_rate_select()
2080 sfp->rs_state_mask = SFP_F_RS0 | SFP_F_RS1; in sfp_module_parse_rate_select()
2084 sfp->rs_threshold_kbd = 9000; in sfp_module_parse_rate_select()
2085 sfp->rs_state_mask = SFP_F_RS0 | SFP_F_RS1; in sfp_module_parse_rate_select()
2101 static bool sfp_id_needs_byte_io(struct sfp *sfp, void *buf, size_t len) in sfp_id_needs_byte_io() argument
2103 size_t i, block_size = sfp->i2c_block_size; in sfp_id_needs_byte_io()
2116 static int sfp_cotsworks_fixup_check(struct sfp *sfp, struct sfp_eeprom_id *id) in sfp_cotsworks_fixup_check() argument
2124 dev_warn(sfp->dev, "Rewriting fiber module EEPROM with corrected values\n"); in sfp_cotsworks_fixup_check()
2128 err = sfp_write(sfp, false, SFP_PHYS_ID, &id->base, 3); in sfp_cotsworks_fixup_check()
2130 dev_err(sfp->dev, in sfp_cotsworks_fixup_check()
2141 err = sfp_write(sfp, false, SFP_CC_BASE, &check, 1); in sfp_cotsworks_fixup_check()
2143 dev_err(sfp->dev, in sfp_cotsworks_fixup_check()
2152 static int sfp_module_parse_sff8472(struct sfp *sfp) in sfp_module_parse_sff8472() argument
2155 if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE) in sfp_module_parse_sff8472()
2156 dev_warn(sfp->dev, in sfp_module_parse_sff8472()
2159 sfp->have_a2 = true; in sfp_module_parse_sff8472()
2164 static int sfp_sm_mod_probe(struct sfp *sfp, bool report) in sfp_sm_mod_probe() argument
2166 /* SFP module inserted - read I2C data */ in sfp_sm_mod_probe()
2174 sfp->i2c_block_size = SFP_EEPROM_BLOCK_SIZE; in sfp_sm_mod_probe()
2176 ret = sfp_read(sfp, false, 0, &id.base, sizeof(id.base)); in sfp_sm_mod_probe()
2179 dev_err(sfp->dev, "failed to read EEPROM: %pe\n", in sfp_sm_mod_probe()
2185 dev_err(sfp->dev, "EEPROM short read: %pe\n", ERR_PTR(ret)); in sfp_sm_mod_probe()
2189 /* Some SFP modules (e.g. Nokia 3FE46541AA) lock up if read from in sfp_sm_mod_probe()
2195 if (sfp_id_needs_byte_io(sfp, &id.base, sizeof(id.base))) { in sfp_sm_mod_probe()
2196 dev_info(sfp->dev, in sfp_sm_mod_probe()
2198 dev_info(sfp->dev, in sfp_sm_mod_probe()
2200 sfp->i2c_block_size = 1; 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, in sfp_sm_mod_probe()
2212 dev_err(sfp->dev, "EEPROM short read: %pe\n", in sfp_sm_mod_probe()
2230 ret = sfp_cotsworks_fixup_check(sfp, &id); in sfp_sm_mod_probe()
2239 dev_warn(sfp->dev, in sfp_sm_mod_probe()
2243 dev_err(sfp->dev, in sfp_sm_mod_probe()
2246 print_hex_dump(KERN_ERR, "sfp EE: ", DUMP_PREFIX_OFFSET, in sfp_sm_mod_probe()
2252 ret = sfp_read(sfp, false, SFP_CC_BASE + 1, &id.ext, sizeof(id.ext)); in sfp_sm_mod_probe()
2255 dev_err(sfp->dev, "failed to read EEPROM: %pe\n", in sfp_sm_mod_probe()
2261 dev_err(sfp->dev, "EEPROM short read: %pe\n", ERR_PTR(ret)); in sfp_sm_mod_probe()
2268 dev_warn(sfp->dev, in sfp_sm_mod_probe()
2272 dev_err(sfp->dev, in sfp_sm_mod_probe()
2275 print_hex_dump(KERN_ERR, "sfp EE: ", DUMP_PREFIX_OFFSET, in sfp_sm_mod_probe()
2281 sfp->id = id; in sfp_sm_mod_probe()
2283 dev_info(sfp->dev, "module %.*s %.*s rev %.*s sn %.*s dc %.*s\n", in sfp_sm_mod_probe()
2291 if (!sfp->type->module_supported(&id)) { in sfp_sm_mod_probe()
2292 dev_err(sfp->dev, in sfp_sm_mod_probe()
2294 sfp->id.base.phys_id, sfp->id.base.phys_ext_id); in sfp_sm_mod_probe()
2298 if (sfp->id.ext.sff8472_compliance != SFP_SFF8472_COMPLIANCE_NONE) { in sfp_sm_mod_probe()
2299 ret = sfp_module_parse_sff8472(sfp); in sfp_sm_mod_probe()
2305 ret = sfp_module_parse_power(sfp); in sfp_sm_mod_probe()
2309 sfp_module_parse_rate_select(sfp); in sfp_sm_mod_probe()
2312 if (sfp->gpio[GPIO_TX_DISABLE]) in sfp_sm_mod_probe()
2314 if (sfp->gpio[GPIO_TX_FAULT]) in sfp_sm_mod_probe()
2316 if (sfp->gpio[GPIO_LOS]) in sfp_sm_mod_probe()
2318 if (sfp->gpio[GPIO_RS0]) in sfp_sm_mod_probe()
2320 if (sfp->gpio[GPIO_RS1]) in sfp_sm_mod_probe()
2323 sfp->module_t_start_up = T_START_UP; in sfp_sm_mod_probe()
2324 sfp->module_t_wait = T_WAIT; in sfp_sm_mod_probe()
2326 sfp->tx_fault_ignore = false; in sfp_sm_mod_probe()
2328 if (sfp->id.base.extended_cc == SFF8024_ECC_10GBASE_T_SFI || in sfp_sm_mod_probe()
2329 sfp->id.base.extended_cc == SFF8024_ECC_10GBASE_T_SR || in sfp_sm_mod_probe()
2330 sfp->id.base.extended_cc == SFF8024_ECC_5GBASE_T || in sfp_sm_mod_probe()
2331 sfp->id.base.extended_cc == SFF8024_ECC_2_5GBASE_T) in sfp_sm_mod_probe()
2332 sfp->mdio_protocol = MDIO_I2C_C45; in sfp_sm_mod_probe()
2333 else if (sfp->id.base.e1000_base_t) in sfp_sm_mod_probe()
2334 sfp->mdio_protocol = MDIO_I2C_MARVELL_C22; in sfp_sm_mod_probe()
2336 sfp->mdio_protocol = MDIO_I2C_NONE; in sfp_sm_mod_probe()
2338 sfp->quirk = sfp_lookup_quirk(&id); in sfp_sm_mod_probe()
2340 mutex_lock(&sfp->st_mutex); in sfp_sm_mod_probe()
2342 sfp->state_hw_mask = mask; in sfp_sm_mod_probe()
2345 sfp->state_hw_drive |= sfp->rs_state_mask; in sfp_sm_mod_probe()
2347 if (sfp->quirk && sfp->quirk->fixup) in sfp_sm_mod_probe()
2348 sfp->quirk->fixup(sfp); in sfp_sm_mod_probe()
2349 mutex_unlock(&sfp->st_mutex); in sfp_sm_mod_probe()
2354 static void sfp_sm_mod_remove(struct sfp *sfp) in sfp_sm_mod_remove() argument
2356 if (sfp->sm_mod_state > SFP_MOD_WAITDEV) in sfp_sm_mod_remove()
2357 sfp_module_remove(sfp->sfp_bus); in sfp_sm_mod_remove()
2359 sfp_hwmon_remove(sfp); in sfp_sm_mod_remove()
2361 memset(&sfp->id, 0, sizeof(sfp->id)); in sfp_sm_mod_remove()
2362 sfp->module_power_mW = 0; in sfp_sm_mod_remove()
2363 sfp->state_hw_drive = SFP_F_TX_DISABLE; in sfp_sm_mod_remove()
2364 sfp->have_a2 = false; in sfp_sm_mod_remove()
2366 dev_info(sfp->dev, "module removed\n"); in sfp_sm_mod_remove()
2370 static void sfp_sm_device(struct sfp *sfp, unsigned int event) in sfp_sm_device() argument
2372 switch (sfp->sm_dev_state) { in sfp_sm_device()
2375 sfp->sm_dev_state = SFP_DEV_DOWN; in sfp_sm_device()
2380 sfp->sm_dev_state = SFP_DEV_DETACHED; in sfp_sm_device()
2382 sfp->sm_dev_state = SFP_DEV_UP; in sfp_sm_device()
2387 sfp->sm_dev_state = SFP_DEV_DETACHED; in sfp_sm_device()
2389 sfp->sm_dev_state = SFP_DEV_DOWN; in sfp_sm_device()
2397 static void sfp_sm_module(struct sfp *sfp, unsigned int event) in sfp_sm_module() argument
2403 sfp_sm_mod_remove(sfp); in sfp_sm_module()
2404 sfp_sm_mod_next(sfp, SFP_MOD_EMPTY, 0); in sfp_sm_module()
2409 if (sfp->sm_dev_state < SFP_DEV_DOWN && in sfp_sm_module()
2410 sfp->sm_mod_state > SFP_MOD_WAITDEV) { in sfp_sm_module()
2411 if (sfp->module_power_mW > 1000 && in sfp_sm_module()
2412 sfp->sm_mod_state > SFP_MOD_HPOWER) in sfp_sm_module()
2413 sfp_sm_mod_hpower(sfp, false); in sfp_sm_module()
2414 sfp_sm_mod_next(sfp, SFP_MOD_WAITDEV, 0); in sfp_sm_module()
2418 switch (sfp->sm_mod_state) { in sfp_sm_module()
2421 sfp_sm_mod_next(sfp, SFP_MOD_PROBE, T_SERIAL); in sfp_sm_module()
2422 sfp->sm_mod_tries_init = R_PROBE_RETRY_INIT; in sfp_sm_module()
2423 sfp->sm_mod_tries = R_PROBE_RETRY_SLOW; in sfp_sm_module()
2432 err = sfp_sm_mod_probe(sfp, sfp->sm_mod_tries == 1); in sfp_sm_module()
2434 if (sfp->sm_mod_tries_init && in sfp_sm_module()
2435 --sfp->sm_mod_tries_init) { in sfp_sm_module()
2436 sfp_sm_set_timer(sfp, T_PROBE_RETRY_INIT); in sfp_sm_module()
2438 } else if (sfp->sm_mod_tries && --sfp->sm_mod_tries) { in sfp_sm_module()
2439 if (sfp->sm_mod_tries == R_PROBE_RETRY_SLOW - 1) in sfp_sm_module()
2440 dev_warn(sfp->dev, in sfp_sm_module()
2442 sfp_sm_set_timer(sfp, T_PROBE_RETRY_SLOW); in sfp_sm_module()
2447 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
2454 mod_delayed_work(system_wq, &sfp->poll, 1); in sfp_sm_module()
2456 err = sfp_hwmon_insert(sfp); in sfp_sm_module()
2458 dev_warn(sfp->dev, "hwmon probe failed: %pe\n", in sfp_sm_module()
2461 sfp_sm_mod_next(sfp, SFP_MOD_WAITDEV, 0); in sfp_sm_module()
2465 if (sfp->sm_dev_state < SFP_DEV_DOWN) in sfp_sm_module()
2469 err = sfp_module_insert(sfp->sfp_bus, &sfp->id, in sfp_sm_module()
2470 sfp->quirk); in sfp_sm_module()
2472 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
2477 if (sfp->module_power_mW <= 1000) in sfp_sm_module()
2480 sfp_sm_mod_next(sfp, SFP_MOD_HPOWER, 0); in sfp_sm_module()
2484 err = sfp_sm_mod_hpower(sfp, true); in sfp_sm_module()
2487 sfp_module_remove(sfp->sfp_bus); in sfp_sm_module()
2488 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
2490 sfp_sm_set_timer(sfp, T_PROBE_RETRY_INIT); in sfp_sm_module()
2495 sfp_sm_mod_next(sfp, SFP_MOD_WAITPWR, T_HPOWER_LEVEL); in sfp_sm_module()
2504 sfp_sm_mod_next(sfp, SFP_MOD_PRESENT, 0); in sfp_sm_module()
2513 static void sfp_sm_main(struct sfp *sfp, unsigned int event) in sfp_sm_main() argument
2519 if (sfp->sm_state != SFP_S_DOWN && in sfp_sm_main()
2520 (sfp->sm_mod_state != SFP_MOD_PRESENT || in sfp_sm_main()
2521 sfp->sm_dev_state != SFP_DEV_UP)) { in sfp_sm_main()
2522 if (sfp->sm_state == SFP_S_LINK_UP && in sfp_sm_main()
2523 sfp->sm_dev_state == SFP_DEV_UP) in sfp_sm_main()
2524 sfp_sm_link_down(sfp); in sfp_sm_main()
2525 if (sfp->sm_state > SFP_S_INIT) in sfp_sm_main()
2526 sfp_module_stop(sfp->sfp_bus); in sfp_sm_main()
2527 if (sfp->mod_phy) in sfp_sm_main()
2528 sfp_sm_phy_detach(sfp); in sfp_sm_main()
2529 if (sfp->i2c_mii) in sfp_sm_main()
2530 sfp_i2c_mdiobus_destroy(sfp); in sfp_sm_main()
2531 sfp_module_tx_disable(sfp); in sfp_sm_main()
2532 sfp_soft_stop_poll(sfp); in sfp_sm_main()
2533 sfp_sm_next(sfp, SFP_S_DOWN, 0); in sfp_sm_main()
2538 switch (sfp->sm_state) { in sfp_sm_main()
2540 if (sfp->sm_mod_state != SFP_MOD_PRESENT || in sfp_sm_main()
2541 sfp->sm_dev_state != SFP_DEV_UP) in sfp_sm_main()
2548 if (sfp->have_a2) in sfp_sm_main()
2549 sfp_soft_start_poll(sfp); in sfp_sm_main()
2551 sfp_module_tx_enable(sfp); in sfp_sm_main()
2554 sfp->sm_fault_retries = N_FAULT_INIT; in sfp_sm_main()
2561 sfp_sm_next(sfp, SFP_S_WAIT, sfp->module_t_wait); in sfp_sm_main()
2568 if (sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2574 timeout = sfp->module_t_start_up; in sfp_sm_main()
2575 if (timeout > sfp->module_t_wait) in sfp_sm_main()
2576 timeout -= sfp->module_t_wait; in sfp_sm_main()
2580 sfp_sm_next(sfp, SFP_S_INIT, timeout); in sfp_sm_main()
2590 if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2594 sfp_sm_fault(sfp, SFP_S_INIT_TX_FAULT, in sfp_sm_main()
2595 sfp->sm_fault_retries == N_FAULT_INIT); in sfp_sm_main()
2599 ret = sfp_sm_add_mdio_bus(sfp); in sfp_sm_main()
2601 sfp_sm_next(sfp, SFP_S_FAIL, 0); in sfp_sm_main()
2604 sfp->sm_phy_retries = R_PHY_RETRY; in sfp_sm_main()
2616 ret = sfp_sm_probe_for_phy(sfp); in sfp_sm_main()
2618 if (--sfp->sm_phy_retries) { in sfp_sm_main()
2619 sfp_sm_next(sfp, SFP_S_INIT_PHY, T_PHY_RETRY); in sfp_sm_main()
2622 dev_info(sfp->dev, "no PHY detected\n"); in sfp_sm_main()
2625 sfp_sm_next(sfp, SFP_S_FAIL, 0); in sfp_sm_main()
2628 if (sfp_module_start(sfp->sfp_bus)) { in sfp_sm_main()
2629 sfp_sm_next(sfp, SFP_S_FAIL, 0); in sfp_sm_main()
2632 sfp_sm_link_check_los(sfp); in sfp_sm_main()
2635 sfp->sm_fault_retries = N_FAULT; in sfp_sm_main()
2640 sfp_module_tx_fault_reset(sfp); in sfp_sm_main()
2641 sfp_sm_next(sfp, SFP_S_INIT, sfp->module_t_start_up); in sfp_sm_main()
2647 sfp_sm_fault(sfp, SFP_S_TX_FAULT, true); in sfp_sm_main()
2648 else if (sfp_los_event_inactive(sfp, event)) in sfp_sm_main()
2649 sfp_sm_link_up(sfp); in sfp_sm_main()
2654 sfp_sm_link_down(sfp); in sfp_sm_main()
2655 sfp_sm_fault(sfp, SFP_S_TX_FAULT, true); in sfp_sm_main()
2656 } else if (sfp_los_event_active(sfp, event)) { in sfp_sm_main()
2657 sfp_sm_link_down(sfp); in sfp_sm_main()
2658 sfp_sm_next(sfp, SFP_S_WAIT_LOS, 0); in sfp_sm_main()
2664 sfp_module_tx_fault_reset(sfp); in sfp_sm_main()
2665 sfp_sm_next(sfp, SFP_S_REINIT, sfp->module_t_start_up); in sfp_sm_main()
2670 if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2671 sfp_sm_fault(sfp, SFP_S_TX_FAULT, false); in sfp_sm_main()
2673 dev_info(sfp->dev, "module transmit fault recovered\n"); in sfp_sm_main()
2674 sfp_sm_link_check_los(sfp); in sfp_sm_main()
2683 static void __sfp_sm_event(struct sfp *sfp, unsigned int event) in __sfp_sm_event() argument
2685 dev_dbg(sfp->dev, "SM: enter %s:%s:%s event %s\n", in __sfp_sm_event()
2686 mod_state_to_str(sfp->sm_mod_state), in __sfp_sm_event()
2687 dev_state_to_str(sfp->sm_dev_state), in __sfp_sm_event()
2688 sm_state_to_str(sfp->sm_state), in __sfp_sm_event()
2691 sfp_sm_device(sfp, event); in __sfp_sm_event()
2692 sfp_sm_module(sfp, event); in __sfp_sm_event()
2693 sfp_sm_main(sfp, event); in __sfp_sm_event()
2695 dev_dbg(sfp->dev, "SM: exit %s:%s:%s\n", in __sfp_sm_event()
2696 mod_state_to_str(sfp->sm_mod_state), in __sfp_sm_event()
2697 dev_state_to_str(sfp->sm_dev_state), in __sfp_sm_event()
2698 sm_state_to_str(sfp->sm_state)); in __sfp_sm_event()
2701 static void sfp_sm_event(struct sfp *sfp, unsigned int event) in sfp_sm_event() argument
2703 mutex_lock(&sfp->sm_mutex); in sfp_sm_event()
2704 __sfp_sm_event(sfp, event); in sfp_sm_event()
2705 mutex_unlock(&sfp->sm_mutex); in sfp_sm_event()
2708 static void sfp_attach(struct sfp *sfp) in sfp_attach() argument
2710 sfp_sm_event(sfp, SFP_E_DEV_ATTACH); in sfp_attach()
2713 static void sfp_detach(struct sfp *sfp) in sfp_detach() argument
2715 sfp_sm_event(sfp, SFP_E_DEV_DETACH); in sfp_detach()
2718 static void sfp_start(struct sfp *sfp) in sfp_start() argument
2720 sfp_sm_event(sfp, SFP_E_DEV_UP); in sfp_start()
2723 static void sfp_stop(struct sfp *sfp) in sfp_stop() argument
2725 sfp_sm_event(sfp, SFP_E_DEV_DOWN); in sfp_stop()
2728 static void sfp_set_signal_rate(struct sfp *sfp, unsigned int rate_kbd) in sfp_set_signal_rate() argument
2732 sfp->rate_kbd = rate_kbd; in sfp_set_signal_rate()
2734 if (rate_kbd > sfp->rs_threshold_kbd) in sfp_set_signal_rate()
2735 set = sfp->rs_state_mask; in sfp_set_signal_rate()
2739 sfp_mod_state(sfp, SFP_F_RS0 | SFP_F_RS1, set); in sfp_set_signal_rate()
2742 static int sfp_module_info(struct sfp *sfp, struct ethtool_modinfo *modinfo) in sfp_module_info() argument
2746 if (sfp->id.ext.sff8472_compliance && in sfp_module_info()
2747 !(sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE)) { in sfp_module_info()
2757 static int sfp_module_eeprom(struct sfp *sfp, struct ethtool_eeprom *ee, in sfp_module_eeprom() argument
2763 if (!(sfp->state & SFP_F_PRESENT)) in sfp_module_eeprom()
2775 ret = sfp_read(sfp, false, first, data, len); in sfp_module_eeprom()
2787 ret = sfp_read(sfp, true, first, data, len); in sfp_module_eeprom()
2794 static int sfp_module_eeprom_by_page(struct sfp *sfp, in sfp_module_eeprom_by_page() argument
2798 if (!(sfp->state & SFP_F_PRESENT)) in sfp_module_eeprom_by_page()
2817 return sfp_read(sfp, page->i2c_address == 0x51, page->offset, in sfp_module_eeprom_by_page()
2834 struct sfp *sfp = container_of(work, struct sfp, timeout.work); in sfp_timeout() local
2837 sfp_sm_event(sfp, SFP_E_TIMEOUT); in sfp_timeout()
2841 static void sfp_check_state(struct sfp *sfp) in sfp_check_state() argument
2846 mutex_lock(&sfp->st_mutex); in sfp_check_state()
2847 state = sfp_get_state(sfp); in sfp_check_state()
2848 changed = state ^ sfp->state; in sfp_check_state()
2849 if (sfp->tx_fault_ignore) in sfp_check_state()
2856 dev_dbg(sfp->dev, "%s %u -> %u\n", gpio_names[i], in sfp_check_state()
2857 !!(sfp->state & BIT(i)), !!(state & BIT(i))); in sfp_check_state()
2859 state |= sfp->state & SFP_F_OUTPUTS; in sfp_check_state()
2860 sfp->state = state; in sfp_check_state()
2861 mutex_unlock(&sfp->st_mutex); in sfp_check_state()
2863 mutex_lock(&sfp->sm_mutex); in sfp_check_state()
2865 __sfp_sm_event(sfp, state & SFP_F_PRESENT ? in sfp_check_state()
2869 __sfp_sm_event(sfp, state & SFP_F_TX_FAULT ? in sfp_check_state()
2873 __sfp_sm_event(sfp, state & SFP_F_LOS ? in sfp_check_state()
2875 mutex_unlock(&sfp->sm_mutex); in sfp_check_state()
2881 struct sfp *sfp = data; in sfp_irq() local
2883 sfp_check_state(sfp); in sfp_irq()
2890 struct sfp *sfp = container_of(work, struct sfp, poll.work); in sfp_poll() local
2892 sfp_check_state(sfp); in sfp_poll()
2896 if (sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT) || in sfp_poll()
2897 sfp->need_poll) in sfp_poll()
2898 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_poll()
2901 static struct sfp *sfp_alloc(struct device *dev) in sfp_alloc()
2903 struct sfp *sfp; in sfp_alloc() local
2905 sfp = kzalloc(sizeof(*sfp), GFP_KERNEL); in sfp_alloc()
2906 if (!sfp) in sfp_alloc()
2909 sfp->dev = dev; in sfp_alloc()
2910 sfp->i2c_block_size = SFP_EEPROM_BLOCK_SIZE; in sfp_alloc()
2912 mutex_init(&sfp->sm_mutex); in sfp_alloc()
2913 mutex_init(&sfp->st_mutex); in sfp_alloc()
2914 INIT_DELAYED_WORK(&sfp->poll, sfp_poll); in sfp_alloc()
2915 INIT_DELAYED_WORK(&sfp->timeout, sfp_timeout); in sfp_alloc()
2917 sfp_hwmon_init(sfp); in sfp_alloc()
2919 return sfp; in sfp_alloc()
2924 struct sfp *sfp = data; in sfp_cleanup() local
2926 sfp_hwmon_exit(sfp); in sfp_cleanup()
2928 cancel_delayed_work_sync(&sfp->poll); in sfp_cleanup()
2929 cancel_delayed_work_sync(&sfp->timeout); in sfp_cleanup()
2930 if (sfp->i2c_mii) { in sfp_cleanup()
2931 mdiobus_unregister(sfp->i2c_mii); in sfp_cleanup()
2932 mdiobus_free(sfp->i2c_mii); in sfp_cleanup()
2934 if (sfp->i2c) in sfp_cleanup()
2935 i2c_put_adapter(sfp->i2c); in sfp_cleanup()
2936 kfree(sfp); in sfp_cleanup()
2939 static int sfp_i2c_get(struct sfp *sfp) in sfp_i2c_get() argument
2945 h = fwnode_find_reference(dev_fwnode(sfp->dev), "i2c-bus", 0); in sfp_i2c_get()
2947 dev_err(sfp->dev, "missing 'i2c-bus' property\n"); in sfp_i2c_get()
2957 err = sfp_i2c_configure(sfp, i2c); in sfp_i2c_get()
2969 struct sfp *sfp; in sfp_probe() local
2972 sfp = sfp_alloc(&pdev->dev); in sfp_probe()
2973 if (IS_ERR(sfp)) in sfp_probe()
2974 return PTR_ERR(sfp); in sfp_probe()
2976 platform_set_drvdata(pdev, sfp); in sfp_probe()
2978 err = devm_add_action_or_reset(sfp->dev, sfp_cleanup, sfp); in sfp_probe()
2982 sff = device_get_match_data(sfp->dev); in sfp_probe()
2986 sfp->type = sff; in sfp_probe()
2988 err = sfp_i2c_get(sfp); in sfp_probe()
2994 sfp->gpio[i] = devm_gpiod_get_optional(sfp->dev, in sfp_probe()
2996 if (IS_ERR(sfp->gpio[i])) in sfp_probe()
2997 return PTR_ERR(sfp->gpio[i]); in sfp_probe()
3000 sfp->state_hw_mask = SFP_F_PRESENT; in sfp_probe()
3001 sfp->state_hw_drive = SFP_F_TX_DISABLE; in sfp_probe()
3003 sfp->get_state = sfp_gpio_get_state; in sfp_probe()
3004 sfp->set_state = sfp_gpio_set_state; in sfp_probe()
3007 if (!(sfp->gpio[GPIO_MODDEF0])) in sfp_probe()
3008 sfp->get_state = sff_gpio_get_state; in sfp_probe()
3011 &sfp->max_power_mW); in sfp_probe()
3012 if (sfp->max_power_mW < 1000) { in sfp_probe()
3013 if (sfp->max_power_mW) in sfp_probe()
3014 dev_warn(sfp->dev, in sfp_probe()
3016 sfp->max_power_mW = 1000; in sfp_probe()
3019 dev_info(sfp->dev, "Host maximum power %u.%uW\n", in sfp_probe()
3020 sfp->max_power_mW / 1000, (sfp->max_power_mW / 100) % 10); in sfp_probe()
3025 sfp->state = sfp_get_state(sfp) | SFP_F_TX_DISABLE; in sfp_probe()
3027 if (sfp->gpio[GPIO_RS0] && in sfp_probe()
3028 gpiod_get_value_cansleep(sfp->gpio[GPIO_RS0])) in sfp_probe()
3029 sfp->state |= SFP_F_RS0; in sfp_probe()
3030 sfp_set_state(sfp, sfp->state); in sfp_probe()
3031 sfp_module_tx_disable(sfp); in sfp_probe()
3032 if (sfp->state & SFP_F_PRESENT) { in sfp_probe()
3034 sfp_sm_event(sfp, SFP_E_INSERT); in sfp_probe()
3039 if (gpio_flags[i] != GPIOD_IN || !sfp->gpio[i]) in sfp_probe()
3042 sfp->gpio_irq[i] = gpiod_to_irq(sfp->gpio[i]); in sfp_probe()
3043 if (sfp->gpio_irq[i] < 0) { in sfp_probe()
3044 sfp->gpio_irq[i] = 0; in sfp_probe()
3045 sfp->need_poll = true; in sfp_probe()
3049 sfp_irq_name = devm_kasprintf(sfp->dev, GFP_KERNEL, in sfp_probe()
3050 "%s-%s", dev_name(sfp->dev), in sfp_probe()
3056 err = devm_request_threaded_irq(sfp->dev, sfp->gpio_irq[i], in sfp_probe()
3061 sfp_irq_name, sfp); in sfp_probe()
3063 sfp->gpio_irq[i] = 0; in sfp_probe()
3064 sfp->need_poll = true; in sfp_probe()
3068 if (sfp->need_poll) in sfp_probe()
3069 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_probe()
3076 if (!sfp->gpio[GPIO_TX_DISABLE]) in sfp_probe()
3077 dev_warn(sfp->dev, in sfp_probe()
3078 "No tx_disable pin: SFP modules will always be emitting.\n"); in sfp_probe()
3080 sfp->sfp_bus = sfp_register_socket(sfp->dev, sfp, &sfp_module_ops); in sfp_probe()
3081 if (!sfp->sfp_bus) in sfp_probe()
3084 sfp_debugfs_init(sfp); in sfp_probe()
3091 struct sfp *sfp = platform_get_drvdata(pdev); in sfp_remove() local
3093 sfp_debugfs_exit(sfp); in sfp_remove()
3094 sfp_unregister_socket(sfp->sfp_bus); in sfp_remove()
3097 sfp_sm_event(sfp, SFP_E_REMOVE); in sfp_remove()
3105 struct sfp *sfp = platform_get_drvdata(pdev); in sfp_shutdown() local
3109 if (!sfp->gpio_irq[i]) in sfp_shutdown()
3112 devm_free_irq(sfp->dev, sfp->gpio_irq[i], sfp); in sfp_shutdown()
3115 cancel_delayed_work_sync(&sfp->poll); in sfp_shutdown()
3116 cancel_delayed_work_sync(&sfp->timeout); in sfp_shutdown()
3124 .name = "sfp",
3143 MODULE_ALIAS("platform:sfp");