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),
539 static unsigned int sfp_gpio_get_state(struct sfp *sfp) in sfp_gpio_get_state() argument
544 if (gpio_flags[i] != GPIOD_IN || !sfp->gpio[i]) in sfp_gpio_get_state()
547 v = gpiod_get_value_cansleep(sfp->gpio[i]); in sfp_gpio_get_state()
555 static unsigned int sff_gpio_get_state(struct sfp *sfp) in sff_gpio_get_state() argument
557 return sfp_gpio_get_state(sfp) | SFP_F_PRESENT; in sff_gpio_get_state()
560 static void sfp_gpio_set_state(struct sfp *sfp, unsigned int state) in sfp_gpio_set_state() argument
566 drive = sfp->state_hw_drive; in sfp_gpio_set_state()
571 if (sfp->gpio[GPIO_TX_DISABLE]) { in sfp_gpio_set_state()
573 gpiod_direction_output(sfp->gpio[GPIO_TX_DISABLE], in sfp_gpio_set_state()
576 gpiod_direction_input(sfp->gpio[GPIO_TX_DISABLE]); in sfp_gpio_set_state()
579 if (sfp->gpio[GPIO_RS0]) { in sfp_gpio_set_state()
581 gpiod_direction_output(sfp->gpio[GPIO_RS0], in sfp_gpio_set_state()
584 gpiod_direction_input(sfp->gpio[GPIO_RS0]); in sfp_gpio_set_state()
587 if (sfp->gpio[GPIO_RS1]) { in sfp_gpio_set_state()
589 gpiod_direction_output(sfp->gpio[GPIO_RS1], in sfp_gpio_set_state()
592 gpiod_direction_input(sfp->gpio[GPIO_RS1]); in sfp_gpio_set_state()
596 static int sfp_i2c_read(struct sfp *sfp, bool a2, u8 dev_addr, void *buf, in sfp_i2c_read() argument
601 size_t block_size = sfp->i2c_block_size; in sfp_i2c_read()
621 ret = i2c_transfer(sfp->i2c, msgs, ARRAY_SIZE(msgs)); in sfp_i2c_read()
636 static int sfp_i2c_write(struct sfp *sfp, bool a2, u8 dev_addr, void *buf, in sfp_i2c_write() argument
653 ret = i2c_transfer(sfp->i2c, msgs, ARRAY_SIZE(msgs)); in sfp_i2c_write()
663 static int sfp_i2c_configure(struct sfp *sfp, struct i2c_adapter *i2c) in sfp_i2c_configure() argument
668 sfp->i2c = i2c; in sfp_i2c_configure()
669 sfp->read = sfp_i2c_read; in sfp_i2c_configure()
670 sfp->write = sfp_i2c_write; in sfp_i2c_configure()
675 static int sfp_i2c_mdiobus_create(struct sfp *sfp) in sfp_i2c_mdiobus_create() argument
680 i2c_mii = mdio_i2c_alloc(sfp->dev, sfp->i2c, sfp->mdio_protocol); in sfp_i2c_mdiobus_create()
684 i2c_mii->name = "SFP I2C Bus"; in sfp_i2c_mdiobus_create()
693 sfp->i2c_mii = i2c_mii; in sfp_i2c_mdiobus_create()
698 static void sfp_i2c_mdiobus_destroy(struct sfp *sfp) in sfp_i2c_mdiobus_destroy() argument
700 mdiobus_unregister(sfp->i2c_mii); in sfp_i2c_mdiobus_destroy()
701 sfp->i2c_mii = NULL; in sfp_i2c_mdiobus_destroy()
705 static int sfp_read(struct sfp *sfp, bool a2, u8 addr, void *buf, size_t len) in sfp_read() argument
707 return sfp->read(sfp, a2, addr, buf, len); in sfp_read()
710 static int sfp_write(struct sfp *sfp, bool a2, u8 addr, void *buf, size_t len) in sfp_write() argument
712 return sfp->write(sfp, a2, addr, buf, len); in sfp_write()
715 static int sfp_modify_u8(struct sfp *sfp, bool a2, u8 addr, u8 mask, u8 val) in sfp_modify_u8() argument
720 ret = sfp_read(sfp, a2, addr, &old, sizeof(old)); in sfp_modify_u8()
728 return sfp_write(sfp, a2, addr, &v, sizeof(v)); in sfp_modify_u8()
731 static unsigned int sfp_soft_get_state(struct sfp *sfp) in sfp_soft_get_state() argument
737 ret = sfp_read(sfp, true, SFP_STATUS, &status, sizeof(status)); in sfp_soft_get_state()
744 dev_err_ratelimited(sfp->dev, in sfp_soft_get_state()
745 "failed to read SFP soft status: %pe\n", in sfp_soft_get_state()
748 state = sfp->state; in sfp_soft_get_state()
751 return state & sfp->state_soft_mask; in sfp_soft_get_state()
754 static void sfp_soft_set_state(struct sfp *sfp, unsigned int state, in sfp_soft_set_state() argument
771 sfp_modify_u8(sfp, true, SFP_STATUS, mask, val); in sfp_soft_set_state()
780 sfp_modify_u8(sfp, true, SFP_EXT_STATUS, mask, val); in sfp_soft_set_state()
783 static void sfp_soft_start_poll(struct sfp *sfp) in sfp_soft_start_poll() argument
785 const struct sfp_eeprom_id *id = &sfp->id; in sfp_soft_start_poll()
795 mask |= sfp->rs_state_mask; in sfp_soft_start_poll()
797 mutex_lock(&sfp->st_mutex); in sfp_soft_start_poll()
799 sfp->state_soft_mask = ~sfp->state_hw_mask & mask; in sfp_soft_start_poll()
801 if (sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT) && in sfp_soft_start_poll()
802 !sfp->need_poll) in sfp_soft_start_poll()
803 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_soft_start_poll()
804 mutex_unlock(&sfp->st_mutex); in sfp_soft_start_poll()
807 static void sfp_soft_stop_poll(struct sfp *sfp) in sfp_soft_stop_poll() argument
809 mutex_lock(&sfp->st_mutex); in sfp_soft_stop_poll()
810 sfp->state_soft_mask = 0; in sfp_soft_stop_poll()
811 mutex_unlock(&sfp->st_mutex); in sfp_soft_stop_poll()
817 static unsigned int sfp_get_state(struct sfp *sfp) in sfp_get_state() argument
819 unsigned int soft = sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT); in sfp_get_state()
822 state = sfp->get_state(sfp) & sfp->state_hw_mask; in sfp_get_state()
824 state |= sfp_soft_get_state(sfp); in sfp_get_state()
832 static void sfp_set_state(struct sfp *sfp, unsigned int state) in sfp_set_state() argument
836 sfp->set_state(sfp, state); in sfp_set_state()
838 soft = sfp->state_soft_mask & SFP_F_OUTPUTS; in sfp_set_state()
840 sfp_soft_set_state(sfp, state, soft); in sfp_set_state()
843 static void sfp_mod_state(struct sfp *sfp, unsigned int mask, unsigned int set) in sfp_mod_state() argument
845 mutex_lock(&sfp->st_mutex); in sfp_mod_state()
846 sfp->state = (sfp->state & ~mask) | set; in sfp_mod_state()
847 sfp_set_state(sfp, sfp->state); in sfp_mod_state()
848 mutex_unlock(&sfp->st_mutex); in sfp_mod_state()
867 const struct sfp *sfp = data; in sfp_hwmon_is_visible() local
880 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
899 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
918 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
934 if (sfp->id.ext.diagmon & SFP_DIAGMON_EXT_CAL && in sfp_hwmon_is_visible()
946 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
960 static int sfp_hwmon_read_sensor(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_sensor() argument
965 err = sfp_read(sfp, true, reg, &val, sizeof(val)); in sfp_hwmon_read_sensor()
979 static void sfp_hwmon_calibrate(struct sfp *sfp, unsigned int slope, int offset, in sfp_hwmon_calibrate() argument
982 if (sfp->id.ext.diagmon & SFP_DIAGMON_EXT_CAL) in sfp_hwmon_calibrate()
986 static void sfp_hwmon_calibrate_temp(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_temp() argument
988 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_t_slope), in sfp_hwmon_calibrate_temp()
989 be16_to_cpu(sfp->diag.cal_t_offset), value); in sfp_hwmon_calibrate_temp()
997 static void sfp_hwmon_calibrate_vcc(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_vcc() argument
999 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_v_slope), in sfp_hwmon_calibrate_vcc()
1000 be16_to_cpu(sfp->diag.cal_v_offset), value); in sfp_hwmon_calibrate_vcc()
1005 static void sfp_hwmon_calibrate_bias(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_bias() argument
1007 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_txi_slope), in sfp_hwmon_calibrate_bias()
1008 be16_to_cpu(sfp->diag.cal_txi_offset), value); in sfp_hwmon_calibrate_bias()
1013 static void sfp_hwmon_calibrate_tx_power(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_tx_power() argument
1015 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_txpwr_slope), in sfp_hwmon_calibrate_tx_power()
1016 be16_to_cpu(sfp->diag.cal_txpwr_offset), value); in sfp_hwmon_calibrate_tx_power()
1021 static int sfp_hwmon_read_temp(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_temp() argument
1025 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_temp()
1029 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_read_temp()
1034 static int sfp_hwmon_read_vcc(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_vcc() argument
1038 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_vcc()
1042 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_read_vcc()
1047 static int sfp_hwmon_read_bias(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_bias() argument
1051 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_bias()
1055 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_read_bias()
1060 static int sfp_hwmon_read_tx_power(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_tx_power() argument
1064 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_tx_power()
1068 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_read_tx_power()
1073 static int sfp_hwmon_read_rx_power(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_rx_power() argument
1077 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_rx_power()
1086 static int sfp_hwmon_temp(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_temp() argument
1093 return sfp_hwmon_read_temp(sfp, SFP_TEMP, value); in sfp_hwmon_temp()
1096 *value = be16_to_cpu(sfp->diag.temp_low_alarm); in sfp_hwmon_temp()
1097 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
1101 *value = be16_to_cpu(sfp->diag.temp_low_warn); in sfp_hwmon_temp()
1102 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
1105 *value = be16_to_cpu(sfp->diag.temp_high_warn); in sfp_hwmon_temp()
1106 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
1110 *value = be16_to_cpu(sfp->diag.temp_high_alarm); in sfp_hwmon_temp()
1111 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
1115 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_temp()
1123 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_temp()
1131 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_temp()
1139 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_temp()
1152 static int sfp_hwmon_vcc(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_vcc() argument
1159 return sfp_hwmon_read_vcc(sfp, SFP_VCC, value); in sfp_hwmon_vcc()
1162 *value = be16_to_cpu(sfp->diag.volt_low_alarm); in sfp_hwmon_vcc()
1163 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
1167 *value = be16_to_cpu(sfp->diag.volt_low_warn); in sfp_hwmon_vcc()
1168 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
1172 *value = be16_to_cpu(sfp->diag.volt_high_warn); in sfp_hwmon_vcc()
1173 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
1177 *value = be16_to_cpu(sfp->diag.volt_high_alarm); in sfp_hwmon_vcc()
1178 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
1182 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_vcc()
1190 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_vcc()
1198 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_vcc()
1206 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_vcc()
1219 static int sfp_hwmon_bias(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_bias() argument
1226 return sfp_hwmon_read_bias(sfp, SFP_TX_BIAS, value); in sfp_hwmon_bias()
1229 *value = be16_to_cpu(sfp->diag.bias_low_alarm); in sfp_hwmon_bias()
1230 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
1234 *value = be16_to_cpu(sfp->diag.bias_low_warn); in sfp_hwmon_bias()
1235 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
1239 *value = be16_to_cpu(sfp->diag.bias_high_warn); in sfp_hwmon_bias()
1240 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
1244 *value = be16_to_cpu(sfp->diag.bias_high_alarm); in sfp_hwmon_bias()
1245 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
1249 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_bias()
1257 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_bias()
1265 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_bias()
1273 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_bias()
1286 static int sfp_hwmon_tx_power(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_tx_power() argument
1293 return sfp_hwmon_read_tx_power(sfp, SFP_TX_POWER, value); in sfp_hwmon_tx_power()
1296 *value = be16_to_cpu(sfp->diag.txpwr_low_alarm); in sfp_hwmon_tx_power()
1297 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1301 *value = be16_to_cpu(sfp->diag.txpwr_low_warn); in sfp_hwmon_tx_power()
1302 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1306 *value = be16_to_cpu(sfp->diag.txpwr_high_warn); in sfp_hwmon_tx_power()
1307 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1311 *value = be16_to_cpu(sfp->diag.txpwr_high_alarm); in sfp_hwmon_tx_power()
1312 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1316 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1324 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1332 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1340 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1353 static int sfp_hwmon_rx_power(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_rx_power() argument
1360 return sfp_hwmon_read_rx_power(sfp, SFP_RX_POWER, value); in sfp_hwmon_rx_power()
1363 *value = be16_to_cpu(sfp->diag.rxpwr_low_alarm); in sfp_hwmon_rx_power()
1368 *value = be16_to_cpu(sfp->diag.rxpwr_low_warn); in sfp_hwmon_rx_power()
1373 *value = be16_to_cpu(sfp->diag.rxpwr_high_warn); in sfp_hwmon_rx_power()
1378 *value = be16_to_cpu(sfp->diag.rxpwr_high_alarm); in sfp_hwmon_rx_power()
1383 err = sfp_read(sfp, true, SFP_ALARM1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1391 err = sfp_read(sfp, true, SFP_WARN1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1399 err = sfp_read(sfp, true, SFP_WARN1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1407 err = sfp_read(sfp, true, SFP_ALARM1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1423 struct sfp *sfp = dev_get_drvdata(dev); in sfp_hwmon_read() local
1427 return sfp_hwmon_temp(sfp, attr, value); in sfp_hwmon_read()
1429 return sfp_hwmon_vcc(sfp, attr, value); in sfp_hwmon_read()
1431 return sfp_hwmon_bias(sfp, attr, value); in sfp_hwmon_read()
1435 return sfp_hwmon_tx_power(sfp, attr, value); in sfp_hwmon_read()
1437 return sfp_hwmon_rx_power(sfp, attr, value); in sfp_hwmon_read()
1554 struct sfp *sfp = container_of(work, struct sfp, hwmon_probe.work); in sfp_hwmon_probe() local
1563 if (sfp->i2c_block_size < 2) { in sfp_hwmon_probe()
1564 dev_info(sfp->dev, in sfp_hwmon_probe()
1566 dev_info(sfp->dev, in sfp_hwmon_probe()
1571 err = sfp_read(sfp, true, 0, &sfp->diag, sizeof(sfp->diag)); in sfp_hwmon_probe()
1573 if (sfp->hwmon_tries--) { in sfp_hwmon_probe()
1574 mod_delayed_work(system_wq, &sfp->hwmon_probe, in sfp_hwmon_probe()
1577 dev_warn(sfp->dev, "hwmon probe failed: %pe\n", in sfp_hwmon_probe()
1583 sfp->hwmon_name = hwmon_sanitize_name(dev_name(sfp->dev)); in sfp_hwmon_probe()
1584 if (IS_ERR(sfp->hwmon_name)) { in sfp_hwmon_probe()
1585 dev_err(sfp->dev, "out of memory for hwmon name\n"); in sfp_hwmon_probe()
1589 sfp->hwmon_dev = hwmon_device_register_with_info(sfp->dev, in sfp_hwmon_probe()
1590 sfp->hwmon_name, sfp, in sfp_hwmon_probe()
1593 if (IS_ERR(sfp->hwmon_dev)) in sfp_hwmon_probe()
1594 dev_err(sfp->dev, "failed to register hwmon device: %ld\n", in sfp_hwmon_probe()
1595 PTR_ERR(sfp->hwmon_dev)); in sfp_hwmon_probe()
1598 static int sfp_hwmon_insert(struct sfp *sfp) in sfp_hwmon_insert() argument
1600 if (sfp->have_a2 && sfp->id.ext.diagmon & SFP_DIAGMON_DDM) { in sfp_hwmon_insert()
1601 mod_delayed_work(system_wq, &sfp->hwmon_probe, 1); in sfp_hwmon_insert()
1602 sfp->hwmon_tries = R_PROBE_RETRY_SLOW; in sfp_hwmon_insert()
1608 static void sfp_hwmon_remove(struct sfp *sfp) in sfp_hwmon_remove() argument
1610 cancel_delayed_work_sync(&sfp->hwmon_probe); in sfp_hwmon_remove()
1611 if (!IS_ERR_OR_NULL(sfp->hwmon_dev)) { in sfp_hwmon_remove()
1612 hwmon_device_unregister(sfp->hwmon_dev); in sfp_hwmon_remove()
1613 sfp->hwmon_dev = NULL; in sfp_hwmon_remove()
1614 kfree(sfp->hwmon_name); in sfp_hwmon_remove()
1618 static int sfp_hwmon_init(struct sfp *sfp) in sfp_hwmon_init() argument
1620 INIT_DELAYED_WORK(&sfp->hwmon_probe, sfp_hwmon_probe); in sfp_hwmon_init()
1625 static void sfp_hwmon_exit(struct sfp *sfp) in sfp_hwmon_exit() argument
1627 cancel_delayed_work_sync(&sfp->hwmon_probe); in sfp_hwmon_exit()
1630 static int sfp_hwmon_insert(struct sfp *sfp) in sfp_hwmon_insert() argument
1635 static void sfp_hwmon_remove(struct sfp *sfp) in sfp_hwmon_remove() argument
1639 static int sfp_hwmon_init(struct sfp *sfp) in sfp_hwmon_init() argument
1644 static void sfp_hwmon_exit(struct sfp *sfp) in sfp_hwmon_exit() argument
1650 static void sfp_module_tx_disable(struct sfp *sfp) in sfp_module_tx_disable() argument
1652 dev_dbg(sfp->dev, "tx disable %u -> %u\n", in sfp_module_tx_disable()
1653 sfp->state & SFP_F_TX_DISABLE ? 1 : 0, 1); in sfp_module_tx_disable()
1654 sfp_mod_state(sfp, SFP_F_TX_DISABLE, SFP_F_TX_DISABLE); in sfp_module_tx_disable()
1657 static void sfp_module_tx_enable(struct sfp *sfp) in sfp_module_tx_enable() argument
1659 dev_dbg(sfp->dev, "tx disable %u -> %u\n", in sfp_module_tx_enable()
1660 sfp->state & SFP_F_TX_DISABLE ? 1 : 0, 0); in sfp_module_tx_enable()
1661 sfp_mod_state(sfp, SFP_F_TX_DISABLE, 0); in sfp_module_tx_enable()
1667 struct sfp *sfp = s->private; in sfp_debug_state_show() local
1670 mod_state_to_str(sfp->sm_mod_state)); in sfp_debug_state_show()
1672 R_PROBE_RETRY_INIT - sfp->sm_mod_tries_init, in sfp_debug_state_show()
1673 R_PROBE_RETRY_SLOW - sfp->sm_mod_tries); in sfp_debug_state_show()
1675 dev_state_to_str(sfp->sm_dev_state)); in sfp_debug_state_show()
1677 sm_state_to_str(sfp->sm_state)); in sfp_debug_state_show()
1679 sfp->sm_fault_retries); in sfp_debug_state_show()
1681 sfp->sm_phy_retries); in sfp_debug_state_show()
1682 seq_printf(s, "Signalling rate: %u kBd\n", sfp->rate_kbd); in sfp_debug_state_show()
1684 sfp->rs_threshold_kbd); in sfp_debug_state_show()
1685 seq_printf(s, "moddef0: %d\n", !!(sfp->state & SFP_F_PRESENT)); in sfp_debug_state_show()
1686 seq_printf(s, "rx_los: %d\n", !!(sfp->state & SFP_F_LOS)); in sfp_debug_state_show()
1687 seq_printf(s, "tx_fault: %d\n", !!(sfp->state & SFP_F_TX_FAULT)); in sfp_debug_state_show()
1688 seq_printf(s, "tx_disable: %d\n", !!(sfp->state & SFP_F_TX_DISABLE)); in sfp_debug_state_show()
1689 seq_printf(s, "rs0: %d\n", !!(sfp->state & SFP_F_RS0)); in sfp_debug_state_show()
1690 seq_printf(s, "rs1: %d\n", !!(sfp->state & SFP_F_RS1)); in sfp_debug_state_show()
1695 static void sfp_debugfs_init(struct sfp *sfp) in sfp_debugfs_init() argument
1697 sfp->debugfs_dir = debugfs_create_dir(dev_name(sfp->dev), NULL); in sfp_debugfs_init()
1699 debugfs_create_file("state", 0600, sfp->debugfs_dir, sfp, in sfp_debugfs_init()
1703 static void sfp_debugfs_exit(struct sfp *sfp) in sfp_debugfs_exit() argument
1705 debugfs_remove_recursive(sfp->debugfs_dir); in sfp_debugfs_exit()
1708 static void sfp_debugfs_init(struct sfp *sfp) in sfp_debugfs_init() argument
1712 static void sfp_debugfs_exit(struct sfp *sfp) in sfp_debugfs_exit() argument
1717 static void sfp_module_tx_fault_reset(struct sfp *sfp) in sfp_module_tx_fault_reset() argument
1721 mutex_lock(&sfp->st_mutex); in sfp_module_tx_fault_reset()
1722 state = sfp->state; in sfp_module_tx_fault_reset()
1724 sfp_set_state(sfp, state | SFP_F_TX_DISABLE); in sfp_module_tx_fault_reset()
1728 sfp_set_state(sfp, state); in sfp_module_tx_fault_reset()
1730 mutex_unlock(&sfp->st_mutex); in sfp_module_tx_fault_reset()
1733 /* SFP state machine */
1734 static void sfp_sm_set_timer(struct sfp *sfp, unsigned int timeout) in sfp_sm_set_timer() argument
1737 mod_delayed_work(system_power_efficient_wq, &sfp->timeout, in sfp_sm_set_timer()
1740 cancel_delayed_work(&sfp->timeout); in sfp_sm_set_timer()
1743 static void sfp_sm_next(struct sfp *sfp, unsigned int state, in sfp_sm_next() argument
1746 sfp->sm_state = state; in sfp_sm_next()
1747 sfp_sm_set_timer(sfp, timeout); in sfp_sm_next()
1750 static void sfp_sm_mod_next(struct sfp *sfp, unsigned int state, in sfp_sm_mod_next() argument
1753 sfp->sm_mod_state = state; in sfp_sm_mod_next()
1754 sfp_sm_set_timer(sfp, timeout); in sfp_sm_mod_next()
1757 static void sfp_sm_phy_detach(struct sfp *sfp) in sfp_sm_phy_detach() argument
1759 sfp_remove_phy(sfp->sfp_bus); in sfp_sm_phy_detach()
1760 phy_device_remove(sfp->mod_phy); in sfp_sm_phy_detach()
1761 phy_device_free(sfp->mod_phy); in sfp_sm_phy_detach()
1762 sfp->mod_phy = NULL; in sfp_sm_phy_detach()
1765 static int sfp_sm_probe_phy(struct sfp *sfp, int addr, bool is_c45) in sfp_sm_probe_phy() argument
1770 phy = get_phy_device(sfp->i2c_mii, addr, is_c45); in sfp_sm_probe_phy()
1774 dev_err(sfp->dev, "mdiobus scan returned %pe\n", phy); in sfp_sm_probe_phy()
1778 /* Mark this PHY as being on a SFP module */ in sfp_sm_probe_phy()
1784 dev_err(sfp->dev, "phy_device_register failed: %pe\n", in sfp_sm_probe_phy()
1789 err = sfp_add_phy(sfp->sfp_bus, phy); in sfp_sm_probe_phy()
1793 dev_err(sfp->dev, "sfp_add_phy failed: %pe\n", ERR_PTR(err)); in sfp_sm_probe_phy()
1797 sfp->mod_phy = phy; in sfp_sm_probe_phy()
1802 static void sfp_sm_link_up(struct sfp *sfp) in sfp_sm_link_up() argument
1804 sfp_link_up(sfp->sfp_bus); in sfp_sm_link_up()
1805 sfp_sm_next(sfp, SFP_S_LINK_UP, 0); in sfp_sm_link_up()
1808 static void sfp_sm_link_down(struct sfp *sfp) in sfp_sm_link_down() argument
1810 sfp_link_down(sfp->sfp_bus); in sfp_sm_link_down()
1813 static void sfp_sm_link_check_los(struct sfp *sfp) in sfp_sm_link_check_los() argument
1817 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_sm_link_check_los()
1825 los = !(sfp->state & SFP_F_LOS); in sfp_sm_link_check_los()
1827 los = !!(sfp->state & SFP_F_LOS); in sfp_sm_link_check_los()
1830 sfp_sm_next(sfp, SFP_S_WAIT_LOS, 0); in sfp_sm_link_check_los()
1832 sfp_sm_link_up(sfp); in sfp_sm_link_check_los()
1835 static bool sfp_los_event_active(struct sfp *sfp, unsigned int event) in sfp_los_event_active() argument
1839 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_los_event_active()
1845 static bool sfp_los_event_inactive(struct sfp *sfp, unsigned int event) in sfp_los_event_inactive() argument
1849 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_los_event_inactive()
1855 static void sfp_sm_fault(struct sfp *sfp, unsigned int next_state, bool warn) in sfp_sm_fault() argument
1857 if (sfp->sm_fault_retries && !--sfp->sm_fault_retries) { in sfp_sm_fault()
1858 dev_err(sfp->dev, in sfp_sm_fault()
1860 sfp_sm_next(sfp, SFP_S_TX_DISABLE, 0); in sfp_sm_fault()
1863 dev_err(sfp->dev, "module transmit fault indicated\n"); in sfp_sm_fault()
1865 sfp_sm_next(sfp, next_state, T_FAULT_RECOVER); in sfp_sm_fault()
1869 static int sfp_sm_add_mdio_bus(struct sfp *sfp) in sfp_sm_add_mdio_bus() argument
1871 if (sfp->mdio_protocol != MDIO_I2C_NONE) in sfp_sm_add_mdio_bus()
1872 return sfp_i2c_mdiobus_create(sfp); in sfp_sm_add_mdio_bus()
1877 /* Probe a SFP for a PHY device if the module supports copper - the PHY
1881 * Clause 22 copper SFP modules normally operate in Cisco SGMII mode with
1885 * Clause 45 copper SFP+ modules (10G) appear to switch their interface
1888 static int sfp_sm_probe_for_phy(struct sfp *sfp) in sfp_sm_probe_for_phy() argument
1892 switch (sfp->mdio_protocol) { in sfp_sm_probe_for_phy()
1897 err = sfp_sm_probe_phy(sfp, SFP_PHY_ADDR, false); in sfp_sm_probe_for_phy()
1901 err = sfp_sm_probe_phy(sfp, SFP_PHY_ADDR, true); in sfp_sm_probe_for_phy()
1905 err = sfp_sm_probe_phy(sfp, SFP_PHY_ADDR_ROLLBALL, true); in sfp_sm_probe_for_phy()
1912 static int sfp_module_parse_power(struct sfp *sfp) in sfp_module_parse_power() argument
1917 if (sfp->id.ext.sff8472_compliance >= SFP_SFF8472_COMPLIANCE_REV10_2 && in sfp_module_parse_power()
1918 sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_POWER_DECL)) in sfp_module_parse_power()
1921 if (sfp->id.ext.sff8472_compliance >= SFP_SFF8472_COMPLIANCE_REV11_4 && in sfp_module_parse_power()
1922 sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_HIGH_POWER_LEVEL)) in sfp_module_parse_power()
1927 sfp->module_power_mW = power_mW; in sfp_module_parse_power()
1931 supports_a2 = sfp->id.ext.sff8472_compliance != in sfp_module_parse_power()
1933 sfp->id.ext.diagmon & SFP_DIAGMON_DDM; in sfp_module_parse_power()
1935 if (power_mW > sfp->max_power_mW) { in sfp_module_parse_power()
1942 dev_err(sfp->dev, in sfp_module_parse_power()
1947 dev_warn(sfp->dev, in sfp_module_parse_power()
1966 if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE) { in sfp_module_parse_power()
1967 dev_warn(sfp->dev, in sfp_module_parse_power()
1973 sfp->module_power_mW = power_mW; in sfp_module_parse_power()
1978 static int sfp_sm_mod_hpower(struct sfp *sfp, bool enable) in sfp_sm_mod_hpower() argument
1982 err = sfp_modify_u8(sfp, true, SFP_EXT_STATUS, in sfp_sm_mod_hpower()
1986 dev_err(sfp->dev, "failed to %sable high power: %pe\n", in sfp_sm_mod_hpower()
1992 dev_info(sfp->dev, "Module switched to %u.%uW power level\n", in sfp_sm_mod_hpower()
1993 sfp->module_power_mW / 1000, in sfp_sm_mod_hpower()
1994 (sfp->module_power_mW / 100) % 10); in sfp_sm_mod_hpower()
1999 static void sfp_module_parse_rate_select(struct sfp *sfp) in sfp_module_parse_rate_select() argument
2003 sfp->rs_threshold_kbd = 0; in sfp_module_parse_rate_select()
2004 sfp->rs_state_mask = 0; in sfp_module_parse_rate_select()
2006 if (!(sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_RATE_SELECT))) in sfp_module_parse_rate_select()
2016 sfp->rs_state_mask = SFP_F_RS0; in sfp_module_parse_rate_select()
2017 sfp->rs_threshold_kbd = 1594; in sfp_module_parse_rate_select()
2027 rate_id = sfp->id.base.rate_id; in sfp_module_parse_rate_select()
2036 if (sfp->id.ext.sff8472_compliance >= SFP_SFF8472_COMPLIANCE_REV10_2 && in sfp_module_parse_rate_select()
2037 sfp->id.ext.sff8472_compliance < SFP_SFF8472_COMPLIANCE_REV11_0 && in sfp_module_parse_rate_select()
2046 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_APP_SELECT_SFF8079)) { in sfp_module_parse_rate_select()
2052 sfp->rs_threshold_kbd = 2125 - 1; in sfp_module_parse_rate_select()
2053 sfp->rs_state_mask = SFP_F_RS0; in sfp_module_parse_rate_select()
2059 if (sfp->id.ext.sff8472_compliance <= SFP_SFF8472_COMPLIANCE_REV9_5) in sfp_module_parse_rate_select()
2067 sfp->rs_threshold_kbd = 4250; in sfp_module_parse_rate_select()
2068 sfp->rs_state_mask = SFP_F_RS0; in sfp_module_parse_rate_select()
2072 sfp->rs_threshold_kbd = 4250; in sfp_module_parse_rate_select()
2073 sfp->rs_state_mask = SFP_F_RS1; in sfp_module_parse_rate_select()
2077 sfp->rs_threshold_kbd = 4250; in sfp_module_parse_rate_select()
2078 sfp->rs_state_mask = SFP_F_RS0 | SFP_F_RS1; in sfp_module_parse_rate_select()
2082 sfp->rs_threshold_kbd = 9000; in sfp_module_parse_rate_select()
2083 sfp->rs_state_mask = SFP_F_RS0 | SFP_F_RS1; in sfp_module_parse_rate_select()
2099 static bool sfp_id_needs_byte_io(struct sfp *sfp, void *buf, size_t len) in sfp_id_needs_byte_io() argument
2101 size_t i, block_size = sfp->i2c_block_size; in sfp_id_needs_byte_io()
2114 static int sfp_cotsworks_fixup_check(struct sfp *sfp, struct sfp_eeprom_id *id) in sfp_cotsworks_fixup_check() argument
2122 dev_warn(sfp->dev, "Rewriting fiber module EEPROM with corrected values\n"); in sfp_cotsworks_fixup_check()
2126 err = sfp_write(sfp, false, SFP_PHYS_ID, &id->base, 3); in sfp_cotsworks_fixup_check()
2128 dev_err(sfp->dev, in sfp_cotsworks_fixup_check()
2139 err = sfp_write(sfp, false, SFP_CC_BASE, &check, 1); in sfp_cotsworks_fixup_check()
2141 dev_err(sfp->dev, in sfp_cotsworks_fixup_check()
2150 static int sfp_module_parse_sff8472(struct sfp *sfp) in sfp_module_parse_sff8472() argument
2153 if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE) in sfp_module_parse_sff8472()
2154 dev_warn(sfp->dev, in sfp_module_parse_sff8472()
2157 sfp->have_a2 = true; in sfp_module_parse_sff8472()
2162 static int sfp_sm_mod_probe(struct sfp *sfp, bool report) in sfp_sm_mod_probe() argument
2164 /* SFP module inserted - read I2C data */ in sfp_sm_mod_probe()
2172 sfp->i2c_block_size = SFP_EEPROM_BLOCK_SIZE; in sfp_sm_mod_probe()
2174 ret = sfp_read(sfp, false, 0, &id.base, sizeof(id.base)); in sfp_sm_mod_probe()
2177 dev_err(sfp->dev, "failed to read EEPROM: %pe\n", in sfp_sm_mod_probe()
2183 dev_err(sfp->dev, "EEPROM short read: %pe\n", ERR_PTR(ret)); in sfp_sm_mod_probe()
2187 /* Some SFP modules (e.g. Nokia 3FE46541AA) lock up if read from in sfp_sm_mod_probe()
2193 if (sfp_id_needs_byte_io(sfp, &id.base, sizeof(id.base))) { in sfp_sm_mod_probe()
2194 dev_info(sfp->dev, in sfp_sm_mod_probe()
2196 dev_info(sfp->dev, in sfp_sm_mod_probe()
2198 sfp->i2c_block_size = 1; in sfp_sm_mod_probe()
2200 ret = sfp_read(sfp, false, 0, &id.base, sizeof(id.base)); in sfp_sm_mod_probe()
2203 dev_err(sfp->dev, in sfp_sm_mod_probe()
2210 dev_err(sfp->dev, "EEPROM short read: %pe\n", in sfp_sm_mod_probe()
2228 ret = sfp_cotsworks_fixup_check(sfp, &id); in sfp_sm_mod_probe()
2237 dev_warn(sfp->dev, in sfp_sm_mod_probe()
2241 dev_err(sfp->dev, in sfp_sm_mod_probe()
2244 print_hex_dump(KERN_ERR, "sfp EE: ", DUMP_PREFIX_OFFSET, in sfp_sm_mod_probe()
2250 ret = sfp_read(sfp, false, SFP_CC_BASE + 1, &id.ext, sizeof(id.ext)); in sfp_sm_mod_probe()
2253 dev_err(sfp->dev, "failed to read EEPROM: %pe\n", in sfp_sm_mod_probe()
2259 dev_err(sfp->dev, "EEPROM short read: %pe\n", ERR_PTR(ret)); in sfp_sm_mod_probe()
2266 dev_warn(sfp->dev, in sfp_sm_mod_probe()
2270 dev_err(sfp->dev, in sfp_sm_mod_probe()
2273 print_hex_dump(KERN_ERR, "sfp EE: ", DUMP_PREFIX_OFFSET, in sfp_sm_mod_probe()
2279 sfp->id = id; in sfp_sm_mod_probe()
2281 dev_info(sfp->dev, "module %.*s %.*s rev %.*s sn %.*s dc %.*s\n", in sfp_sm_mod_probe()
2289 if (!sfp->type->module_supported(&id)) { in sfp_sm_mod_probe()
2290 dev_err(sfp->dev, in sfp_sm_mod_probe()
2292 sfp->id.base.phys_id, sfp->id.base.phys_ext_id); in sfp_sm_mod_probe()
2296 if (sfp->id.ext.sff8472_compliance != SFP_SFF8472_COMPLIANCE_NONE) { in sfp_sm_mod_probe()
2297 ret = sfp_module_parse_sff8472(sfp); in sfp_sm_mod_probe()
2303 ret = sfp_module_parse_power(sfp); in sfp_sm_mod_probe()
2307 sfp_module_parse_rate_select(sfp); in sfp_sm_mod_probe()
2310 if (sfp->gpio[GPIO_TX_DISABLE]) in sfp_sm_mod_probe()
2312 if (sfp->gpio[GPIO_TX_FAULT]) in sfp_sm_mod_probe()
2314 if (sfp->gpio[GPIO_LOS]) in sfp_sm_mod_probe()
2316 if (sfp->gpio[GPIO_RS0]) in sfp_sm_mod_probe()
2318 if (sfp->gpio[GPIO_RS1]) in sfp_sm_mod_probe()
2321 sfp->module_t_start_up = T_START_UP; in sfp_sm_mod_probe()
2322 sfp->module_t_wait = T_WAIT; in sfp_sm_mod_probe()
2324 sfp->tx_fault_ignore = false; in sfp_sm_mod_probe()
2326 if (sfp->id.base.extended_cc == SFF8024_ECC_10GBASE_T_SFI || in sfp_sm_mod_probe()
2327 sfp->id.base.extended_cc == SFF8024_ECC_10GBASE_T_SR || in sfp_sm_mod_probe()
2328 sfp->id.base.extended_cc == SFF8024_ECC_5GBASE_T || in sfp_sm_mod_probe()
2329 sfp->id.base.extended_cc == SFF8024_ECC_2_5GBASE_T) in sfp_sm_mod_probe()
2330 sfp->mdio_protocol = MDIO_I2C_C45; in sfp_sm_mod_probe()
2331 else if (sfp->id.base.e1000_base_t) in sfp_sm_mod_probe()
2332 sfp->mdio_protocol = MDIO_I2C_MARVELL_C22; in sfp_sm_mod_probe()
2334 sfp->mdio_protocol = MDIO_I2C_NONE; in sfp_sm_mod_probe()
2336 sfp->quirk = sfp_lookup_quirk(&id); in sfp_sm_mod_probe()
2338 mutex_lock(&sfp->st_mutex); in sfp_sm_mod_probe()
2340 sfp->state_hw_mask = mask; in sfp_sm_mod_probe()
2343 sfp->state_hw_drive |= sfp->rs_state_mask; in sfp_sm_mod_probe()
2345 if (sfp->quirk && sfp->quirk->fixup) in sfp_sm_mod_probe()
2346 sfp->quirk->fixup(sfp); in sfp_sm_mod_probe()
2347 mutex_unlock(&sfp->st_mutex); in sfp_sm_mod_probe()
2352 static void sfp_sm_mod_remove(struct sfp *sfp) in sfp_sm_mod_remove() argument
2354 if (sfp->sm_mod_state > SFP_MOD_WAITDEV) in sfp_sm_mod_remove()
2355 sfp_module_remove(sfp->sfp_bus); in sfp_sm_mod_remove()
2357 sfp_hwmon_remove(sfp); in sfp_sm_mod_remove()
2359 memset(&sfp->id, 0, sizeof(sfp->id)); in sfp_sm_mod_remove()
2360 sfp->module_power_mW = 0; in sfp_sm_mod_remove()
2361 sfp->state_hw_drive = SFP_F_TX_DISABLE; in sfp_sm_mod_remove()
2362 sfp->have_a2 = false; in sfp_sm_mod_remove()
2364 dev_info(sfp->dev, "module removed\n"); in sfp_sm_mod_remove()
2368 static void sfp_sm_device(struct sfp *sfp, unsigned int event) in sfp_sm_device() argument
2370 switch (sfp->sm_dev_state) { in sfp_sm_device()
2373 sfp->sm_dev_state = SFP_DEV_DOWN; in sfp_sm_device()
2378 sfp->sm_dev_state = SFP_DEV_DETACHED; in sfp_sm_device()
2380 sfp->sm_dev_state = SFP_DEV_UP; in sfp_sm_device()
2385 sfp->sm_dev_state = SFP_DEV_DETACHED; in sfp_sm_device()
2387 sfp->sm_dev_state = SFP_DEV_DOWN; in sfp_sm_device()
2395 static void sfp_sm_module(struct sfp *sfp, unsigned int event) in sfp_sm_module() argument
2401 sfp_sm_mod_remove(sfp); in sfp_sm_module()
2402 sfp_sm_mod_next(sfp, SFP_MOD_EMPTY, 0); in sfp_sm_module()
2407 if (sfp->sm_dev_state < SFP_DEV_DOWN && in sfp_sm_module()
2408 sfp->sm_mod_state > SFP_MOD_WAITDEV) { in sfp_sm_module()
2409 if (sfp->module_power_mW > 1000 && in sfp_sm_module()
2410 sfp->sm_mod_state > SFP_MOD_HPOWER) in sfp_sm_module()
2411 sfp_sm_mod_hpower(sfp, false); in sfp_sm_module()
2412 sfp_sm_mod_next(sfp, SFP_MOD_WAITDEV, 0); in sfp_sm_module()
2416 switch (sfp->sm_mod_state) { in sfp_sm_module()
2419 sfp_sm_mod_next(sfp, SFP_MOD_PROBE, T_SERIAL); in sfp_sm_module()
2420 sfp->sm_mod_tries_init = R_PROBE_RETRY_INIT; in sfp_sm_module()
2421 sfp->sm_mod_tries = R_PROBE_RETRY_SLOW; in sfp_sm_module()
2430 err = sfp_sm_mod_probe(sfp, sfp->sm_mod_tries == 1); in sfp_sm_module()
2432 if (sfp->sm_mod_tries_init && in sfp_sm_module()
2433 --sfp->sm_mod_tries_init) { in sfp_sm_module()
2434 sfp_sm_set_timer(sfp, T_PROBE_RETRY_INIT); in sfp_sm_module()
2436 } else if (sfp->sm_mod_tries && --sfp->sm_mod_tries) { in sfp_sm_module()
2437 if (sfp->sm_mod_tries == R_PROBE_RETRY_SLOW - 1) in sfp_sm_module()
2438 dev_warn(sfp->dev, in sfp_sm_module()
2440 sfp_sm_set_timer(sfp, T_PROBE_RETRY_SLOW); in sfp_sm_module()
2445 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
2452 mod_delayed_work(system_wq, &sfp->poll, 1); in sfp_sm_module()
2454 err = sfp_hwmon_insert(sfp); in sfp_sm_module()
2456 dev_warn(sfp->dev, "hwmon probe failed: %pe\n", in sfp_sm_module()
2459 sfp_sm_mod_next(sfp, SFP_MOD_WAITDEV, 0); in sfp_sm_module()
2463 if (sfp->sm_dev_state < SFP_DEV_DOWN) in sfp_sm_module()
2467 err = sfp_module_insert(sfp->sfp_bus, &sfp->id, in sfp_sm_module()
2468 sfp->quirk); in sfp_sm_module()
2470 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
2475 if (sfp->module_power_mW <= 1000) in sfp_sm_module()
2478 sfp_sm_mod_next(sfp, SFP_MOD_HPOWER, 0); in sfp_sm_module()
2482 err = sfp_sm_mod_hpower(sfp, true); in sfp_sm_module()
2485 sfp_module_remove(sfp->sfp_bus); in sfp_sm_module()
2486 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
2488 sfp_sm_set_timer(sfp, T_PROBE_RETRY_INIT); in sfp_sm_module()
2493 sfp_sm_mod_next(sfp, SFP_MOD_WAITPWR, T_HPOWER_LEVEL); in sfp_sm_module()
2502 sfp_sm_mod_next(sfp, SFP_MOD_PRESENT, 0); in sfp_sm_module()
2511 static void sfp_sm_main(struct sfp *sfp, unsigned int event) in sfp_sm_main() argument
2517 if (sfp->sm_state != SFP_S_DOWN && in sfp_sm_main()
2518 (sfp->sm_mod_state != SFP_MOD_PRESENT || in sfp_sm_main()
2519 sfp->sm_dev_state != SFP_DEV_UP)) { in sfp_sm_main()
2520 if (sfp->sm_state == SFP_S_LINK_UP && in sfp_sm_main()
2521 sfp->sm_dev_state == SFP_DEV_UP) in sfp_sm_main()
2522 sfp_sm_link_down(sfp); in sfp_sm_main()
2523 if (sfp->sm_state > SFP_S_INIT) in sfp_sm_main()
2524 sfp_module_stop(sfp->sfp_bus); in sfp_sm_main()
2525 if (sfp->mod_phy) in sfp_sm_main()
2526 sfp_sm_phy_detach(sfp); in sfp_sm_main()
2527 if (sfp->i2c_mii) in sfp_sm_main()
2528 sfp_i2c_mdiobus_destroy(sfp); in sfp_sm_main()
2529 sfp_module_tx_disable(sfp); in sfp_sm_main()
2530 sfp_soft_stop_poll(sfp); in sfp_sm_main()
2531 sfp_sm_next(sfp, SFP_S_DOWN, 0); in sfp_sm_main()
2536 switch (sfp->sm_state) { in sfp_sm_main()
2538 if (sfp->sm_mod_state != SFP_MOD_PRESENT || in sfp_sm_main()
2539 sfp->sm_dev_state != SFP_DEV_UP) in sfp_sm_main()
2546 if (sfp->have_a2) in sfp_sm_main()
2547 sfp_soft_start_poll(sfp); in sfp_sm_main()
2549 sfp_module_tx_enable(sfp); in sfp_sm_main()
2552 sfp->sm_fault_retries = N_FAULT_INIT; in sfp_sm_main()
2559 sfp_sm_next(sfp, SFP_S_WAIT, sfp->module_t_wait); in sfp_sm_main()
2566 if (sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2572 timeout = sfp->module_t_start_up; in sfp_sm_main()
2573 if (timeout > sfp->module_t_wait) in sfp_sm_main()
2574 timeout -= sfp->module_t_wait; in sfp_sm_main()
2578 sfp_sm_next(sfp, SFP_S_INIT, timeout); in sfp_sm_main()
2588 if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2592 sfp_sm_fault(sfp, SFP_S_INIT_TX_FAULT, in sfp_sm_main()
2593 sfp->sm_fault_retries == N_FAULT_INIT); in sfp_sm_main()
2597 ret = sfp_sm_add_mdio_bus(sfp); in sfp_sm_main()
2599 sfp_sm_next(sfp, SFP_S_FAIL, 0); in sfp_sm_main()
2602 sfp->sm_phy_retries = R_PHY_RETRY; in sfp_sm_main()
2614 ret = sfp_sm_probe_for_phy(sfp); in sfp_sm_main()
2616 if (--sfp->sm_phy_retries) { in sfp_sm_main()
2617 sfp_sm_next(sfp, SFP_S_INIT_PHY, T_PHY_RETRY); in sfp_sm_main()
2620 dev_info(sfp->dev, "no PHY detected\n"); in sfp_sm_main()
2623 sfp_sm_next(sfp, SFP_S_FAIL, 0); in sfp_sm_main()
2626 if (sfp_module_start(sfp->sfp_bus)) { in sfp_sm_main()
2627 sfp_sm_next(sfp, SFP_S_FAIL, 0); in sfp_sm_main()
2630 sfp_sm_link_check_los(sfp); in sfp_sm_main()
2633 sfp->sm_fault_retries = N_FAULT; in sfp_sm_main()
2638 sfp_module_tx_fault_reset(sfp); in sfp_sm_main()
2639 sfp_sm_next(sfp, SFP_S_INIT, sfp->module_t_start_up); in sfp_sm_main()
2645 sfp_sm_fault(sfp, SFP_S_TX_FAULT, true); in sfp_sm_main()
2646 else if (sfp_los_event_inactive(sfp, event)) in sfp_sm_main()
2647 sfp_sm_link_up(sfp); in sfp_sm_main()
2652 sfp_sm_link_down(sfp); in sfp_sm_main()
2653 sfp_sm_fault(sfp, SFP_S_TX_FAULT, true); in sfp_sm_main()
2654 } else if (sfp_los_event_active(sfp, event)) { in sfp_sm_main()
2655 sfp_sm_link_down(sfp); in sfp_sm_main()
2656 sfp_sm_next(sfp, SFP_S_WAIT_LOS, 0); in sfp_sm_main()
2662 sfp_module_tx_fault_reset(sfp); in sfp_sm_main()
2663 sfp_sm_next(sfp, SFP_S_REINIT, sfp->module_t_start_up); in sfp_sm_main()
2668 if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2669 sfp_sm_fault(sfp, SFP_S_TX_FAULT, false); in sfp_sm_main()
2671 dev_info(sfp->dev, "module transmit fault recovered\n"); in sfp_sm_main()
2672 sfp_sm_link_check_los(sfp); in sfp_sm_main()
2681 static void __sfp_sm_event(struct sfp *sfp, unsigned int event) in __sfp_sm_event() argument
2683 dev_dbg(sfp->dev, "SM: enter %s:%s:%s event %s\n", in __sfp_sm_event()
2684 mod_state_to_str(sfp->sm_mod_state), in __sfp_sm_event()
2685 dev_state_to_str(sfp->sm_dev_state), in __sfp_sm_event()
2686 sm_state_to_str(sfp->sm_state), in __sfp_sm_event()
2689 sfp_sm_device(sfp, event); in __sfp_sm_event()
2690 sfp_sm_module(sfp, event); in __sfp_sm_event()
2691 sfp_sm_main(sfp, event); in __sfp_sm_event()
2693 dev_dbg(sfp->dev, "SM: exit %s:%s:%s\n", in __sfp_sm_event()
2694 mod_state_to_str(sfp->sm_mod_state), in __sfp_sm_event()
2695 dev_state_to_str(sfp->sm_dev_state), in __sfp_sm_event()
2696 sm_state_to_str(sfp->sm_state)); in __sfp_sm_event()
2699 static void sfp_sm_event(struct sfp *sfp, unsigned int event) in sfp_sm_event() argument
2701 mutex_lock(&sfp->sm_mutex); in sfp_sm_event()
2702 __sfp_sm_event(sfp, event); in sfp_sm_event()
2703 mutex_unlock(&sfp->sm_mutex); in sfp_sm_event()
2706 static void sfp_attach(struct sfp *sfp) in sfp_attach() argument
2708 sfp_sm_event(sfp, SFP_E_DEV_ATTACH); in sfp_attach()
2711 static void sfp_detach(struct sfp *sfp) in sfp_detach() argument
2713 sfp_sm_event(sfp, SFP_E_DEV_DETACH); in sfp_detach()
2716 static void sfp_start(struct sfp *sfp) in sfp_start() argument
2718 sfp_sm_event(sfp, SFP_E_DEV_UP); in sfp_start()
2721 static void sfp_stop(struct sfp *sfp) in sfp_stop() argument
2723 sfp_sm_event(sfp, SFP_E_DEV_DOWN); in sfp_stop()
2726 static void sfp_set_signal_rate(struct sfp *sfp, unsigned int rate_kbd) in sfp_set_signal_rate() argument
2730 sfp->rate_kbd = rate_kbd; in sfp_set_signal_rate()
2732 if (rate_kbd > sfp->rs_threshold_kbd) in sfp_set_signal_rate()
2733 set = sfp->rs_state_mask; in sfp_set_signal_rate()
2737 sfp_mod_state(sfp, SFP_F_RS0 | SFP_F_RS1, set); in sfp_set_signal_rate()
2740 static int sfp_module_info(struct sfp *sfp, struct ethtool_modinfo *modinfo) in sfp_module_info() argument
2744 if (sfp->id.ext.sff8472_compliance && in sfp_module_info()
2745 !(sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE)) { in sfp_module_info()
2755 static int sfp_module_eeprom(struct sfp *sfp, struct ethtool_eeprom *ee, in sfp_module_eeprom() argument
2761 if (!(sfp->state & SFP_F_PRESENT)) in sfp_module_eeprom()
2773 ret = sfp_read(sfp, false, first, data, len); in sfp_module_eeprom()
2785 ret = sfp_read(sfp, true, first, data, len); in sfp_module_eeprom()
2792 static int sfp_module_eeprom_by_page(struct sfp *sfp, in sfp_module_eeprom_by_page() argument
2796 if (!(sfp->state & SFP_F_PRESENT)) in sfp_module_eeprom_by_page()
2815 return sfp_read(sfp, page->i2c_address == 0x51, page->offset, in sfp_module_eeprom_by_page()
2832 struct sfp *sfp = container_of(work, struct sfp, timeout.work); in sfp_timeout() local
2835 sfp_sm_event(sfp, SFP_E_TIMEOUT); in sfp_timeout()
2839 static void sfp_check_state(struct sfp *sfp) in sfp_check_state() argument
2844 mutex_lock(&sfp->st_mutex); in sfp_check_state()
2845 state = sfp_get_state(sfp); in sfp_check_state()
2846 changed = state ^ sfp->state; in sfp_check_state()
2847 if (sfp->tx_fault_ignore) in sfp_check_state()
2854 dev_dbg(sfp->dev, "%s %u -> %u\n", gpio_names[i], in sfp_check_state()
2855 !!(sfp->state & BIT(i)), !!(state & BIT(i))); in sfp_check_state()
2857 state |= sfp->state & SFP_F_OUTPUTS; in sfp_check_state()
2858 sfp->state = state; in sfp_check_state()
2859 mutex_unlock(&sfp->st_mutex); in sfp_check_state()
2861 mutex_lock(&sfp->sm_mutex); in sfp_check_state()
2863 __sfp_sm_event(sfp, state & SFP_F_PRESENT ? in sfp_check_state()
2867 __sfp_sm_event(sfp, state & SFP_F_TX_FAULT ? in sfp_check_state()
2871 __sfp_sm_event(sfp, state & SFP_F_LOS ? in sfp_check_state()
2873 mutex_unlock(&sfp->sm_mutex); in sfp_check_state()
2879 struct sfp *sfp = data; in sfp_irq() local
2881 sfp_check_state(sfp); in sfp_irq()
2888 struct sfp *sfp = container_of(work, struct sfp, poll.work); in sfp_poll() local
2890 sfp_check_state(sfp); in sfp_poll()
2894 if (sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT) || in sfp_poll()
2895 sfp->need_poll) in sfp_poll()
2896 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_poll()
2899 static struct sfp *sfp_alloc(struct device *dev) in sfp_alloc()
2901 struct sfp *sfp; in sfp_alloc() local
2903 sfp = kzalloc(sizeof(*sfp), GFP_KERNEL); in sfp_alloc()
2904 if (!sfp) in sfp_alloc()
2907 sfp->dev = dev; in sfp_alloc()
2908 sfp->i2c_block_size = SFP_EEPROM_BLOCK_SIZE; in sfp_alloc()
2910 mutex_init(&sfp->sm_mutex); in sfp_alloc()
2911 mutex_init(&sfp->st_mutex); in sfp_alloc()
2912 INIT_DELAYED_WORK(&sfp->poll, sfp_poll); in sfp_alloc()
2913 INIT_DELAYED_WORK(&sfp->timeout, sfp_timeout); in sfp_alloc()
2915 sfp_hwmon_init(sfp); in sfp_alloc()
2917 return sfp; in sfp_alloc()
2922 struct sfp *sfp = data; in sfp_cleanup() local
2924 sfp_hwmon_exit(sfp); in sfp_cleanup()
2926 cancel_delayed_work_sync(&sfp->poll); in sfp_cleanup()
2927 cancel_delayed_work_sync(&sfp->timeout); in sfp_cleanup()
2928 if (sfp->i2c_mii) { in sfp_cleanup()
2929 mdiobus_unregister(sfp->i2c_mii); in sfp_cleanup()
2930 mdiobus_free(sfp->i2c_mii); in sfp_cleanup()
2932 if (sfp->i2c) in sfp_cleanup()
2933 i2c_put_adapter(sfp->i2c); in sfp_cleanup()
2934 kfree(sfp); in sfp_cleanup()
2937 static int sfp_i2c_get(struct sfp *sfp) in sfp_i2c_get() argument
2943 h = fwnode_find_reference(dev_fwnode(sfp->dev), "i2c-bus", 0); in sfp_i2c_get()
2945 dev_err(sfp->dev, "missing 'i2c-bus' property\n"); in sfp_i2c_get()
2955 err = sfp_i2c_configure(sfp, i2c); in sfp_i2c_get()
2967 struct sfp *sfp; in sfp_probe() local
2970 sfp = sfp_alloc(&pdev->dev); in sfp_probe()
2971 if (IS_ERR(sfp)) in sfp_probe()
2972 return PTR_ERR(sfp); in sfp_probe()
2974 platform_set_drvdata(pdev, sfp); in sfp_probe()
2976 err = devm_add_action_or_reset(sfp->dev, sfp_cleanup, sfp); in sfp_probe()
2980 sff = device_get_match_data(sfp->dev); in sfp_probe()
2984 sfp->type = sff; in sfp_probe()
2986 err = sfp_i2c_get(sfp); in sfp_probe()
2992 sfp->gpio[i] = devm_gpiod_get_optional(sfp->dev, in sfp_probe()
2994 if (IS_ERR(sfp->gpio[i])) in sfp_probe()
2995 return PTR_ERR(sfp->gpio[i]); in sfp_probe()
2998 sfp->state_hw_mask = SFP_F_PRESENT; in sfp_probe()
2999 sfp->state_hw_drive = SFP_F_TX_DISABLE; in sfp_probe()
3001 sfp->get_state = sfp_gpio_get_state; in sfp_probe()
3002 sfp->set_state = sfp_gpio_set_state; in sfp_probe()
3005 if (!(sfp->gpio[GPIO_MODDEF0])) in sfp_probe()
3006 sfp->get_state = sff_gpio_get_state; in sfp_probe()
3009 &sfp->max_power_mW); in sfp_probe()
3010 if (sfp->max_power_mW < 1000) { in sfp_probe()
3011 if (sfp->max_power_mW) in sfp_probe()
3012 dev_warn(sfp->dev, in sfp_probe()
3014 sfp->max_power_mW = 1000; in sfp_probe()
3017 dev_info(sfp->dev, "Host maximum power %u.%uW\n", in sfp_probe()
3018 sfp->max_power_mW / 1000, (sfp->max_power_mW / 100) % 10); in sfp_probe()
3023 sfp->state = sfp_get_state(sfp) | SFP_F_TX_DISABLE; in sfp_probe()
3025 if (sfp->gpio[GPIO_RS0] && in sfp_probe()
3026 gpiod_get_value_cansleep(sfp->gpio[GPIO_RS0])) in sfp_probe()
3027 sfp->state |= SFP_F_RS0; in sfp_probe()
3028 sfp_set_state(sfp, sfp->state); in sfp_probe()
3029 sfp_module_tx_disable(sfp); in sfp_probe()
3030 if (sfp->state & SFP_F_PRESENT) { in sfp_probe()
3032 sfp_sm_event(sfp, SFP_E_INSERT); in sfp_probe()
3037 if (gpio_flags[i] != GPIOD_IN || !sfp->gpio[i]) in sfp_probe()
3040 sfp->gpio_irq[i] = gpiod_to_irq(sfp->gpio[i]); in sfp_probe()
3041 if (sfp->gpio_irq[i] < 0) { in sfp_probe()
3042 sfp->gpio_irq[i] = 0; in sfp_probe()
3043 sfp->need_poll = true; in sfp_probe()
3047 sfp_irq_name = devm_kasprintf(sfp->dev, GFP_KERNEL, in sfp_probe()
3048 "%s-%s", dev_name(sfp->dev), in sfp_probe()
3054 err = devm_request_threaded_irq(sfp->dev, sfp->gpio_irq[i], in sfp_probe()
3059 sfp_irq_name, sfp); in sfp_probe()
3061 sfp->gpio_irq[i] = 0; in sfp_probe()
3062 sfp->need_poll = true; in sfp_probe()
3066 if (sfp->need_poll) in sfp_probe()
3067 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_probe()
3074 if (!sfp->gpio[GPIO_TX_DISABLE]) in sfp_probe()
3075 dev_warn(sfp->dev, in sfp_probe()
3076 "No tx_disable pin: SFP modules will always be emitting.\n"); in sfp_probe()
3078 sfp->sfp_bus = sfp_register_socket(sfp->dev, sfp, &sfp_module_ops); in sfp_probe()
3079 if (!sfp->sfp_bus) in sfp_probe()
3082 sfp_debugfs_init(sfp); in sfp_probe()
3089 struct sfp *sfp = platform_get_drvdata(pdev); in sfp_remove() local
3091 sfp_debugfs_exit(sfp); in sfp_remove()
3092 sfp_unregister_socket(sfp->sfp_bus); in sfp_remove()
3095 sfp_sm_event(sfp, SFP_E_REMOVE); in sfp_remove()
3103 struct sfp *sfp = platform_get_drvdata(pdev); in sfp_shutdown() local
3107 if (!sfp->gpio_irq[i]) in sfp_shutdown()
3110 devm_free_irq(sfp->dev, sfp->gpio_irq[i], sfp); in sfp_shutdown()
3113 cancel_delayed_work_sync(&sfp->poll); in sfp_shutdown()
3114 cancel_delayed_work_sync(&sfp->timeout); in sfp_shutdown()
3122 .name = "sfp",
3141 MODULE_ALIAS("platform:sfp");