Lines Matching +full:1000 +full:base +full:- +full:x +full:- +full:to +full:- +full:1000 +full:base +full:- +full:t
1 // SPDX-License-Identifier: GPL-2.0
9 #include <linux/mdio/mdio-i2c.h>
150 "mod-def0",
152 "tx-fault",
153 "tx-disable",
154 "rate-select0",
155 "rate-select1",
167 /* t_start_up (SFF-8431) or t_init (SFF-8472) is the time required for a
168 * non-cooled module to initialise its laser safety circuitry. We wait
169 * an initial T_WAIT period before we check the tx fault to give any PHY
170 * on board (for a copper SFP) time to initialise.
176 /* t_reset is the time required to assert the TX_DISABLE signal to reset
180 #define T_FAULT_RECOVER msecs_to_jiffies(1000)
190 /* T_PHY_RETRY is the time interval between attempts to probe the PHY.
197 * the same length on the PCB, which means it's possible for MOD DEF 0 to
200 * The SFF-8472 specifies t_serial ("Time from power on until module is
210 /* SFP modules appear to always have their PHY configured for bus address
211 * 0x56 (which with mdio-i2c, translates to a PHY address of 22).
213 * via address 0x51 (mdio-i2c will use RollBall protocol on this address).
218 /* SFP_EEPROM_BLOCK_SIZE is the size of data chunk to read the EEPROM
304 return id->base.phys_id == SFF8024_ID_SFF_8472 && in sff_module_supported()
305 id->base.phys_ext_id == SFP_PHYS_EXT_ID_SFP; in sff_module_supported()
315 if (id->base.phys_id == SFF8024_ID_SFP && in sfp_module_supported()
316 id->base.phys_ext_id == SFP_PHYS_EXT_ID_SFP) in sfp_module_supported()
319 /* SFP GPON module Ubiquiti U-Fiber Instant has in its EEPROM stored in sfp_module_supported()
323 if (id->base.phys_id == SFF8024_ID_SFF_8472 && in sfp_module_supported()
324 id->base.phys_ext_id == SFP_PHYS_EXT_ID_SFP && in sfp_module_supported()
325 !memcmp(id->base.vendor_name, "UBNT ", 16) && in sfp_module_supported()
326 !memcmp(id->base.vendor_pn, "UF-INSTANT ", 16)) in sfp_module_supported()
347 sfp->module_t_start_up = T_START_UP_BAD_GPON; in sfp_fixup_long_startup()
352 /* This forces LOS to zero, so we ignore transitions */ in sfp_fixup_ignore_los()
353 sfp->state_ignore_mask |= SFP_F_LOS; in sfp_fixup_ignore_los()
355 sfp->id.ext.options &= ~cpu_to_be16(SFP_OPTIONS_LOS_INVERTED | in sfp_fixup_ignore_los()
361 sfp->state_ignore_mask |= SFP_F_TX_FAULT; in sfp_fixup_ignore_tx_fault()
370 // For 10GBASE-T short-reach modules
373 sfp->id.base.connector = SFF8024_CONNECTOR_RJ45; in sfp_fixup_10gbaset_30m()
374 sfp->id.base.extended_cc = SFF8024_ECC_10GBASE_T_SR; in sfp_fixup_10gbaset_30m()
379 sfp->mdio_protocol = MDIO_I2C_ROLLBALL; in sfp_fixup_rollball()
381 /* RollBall modules may disallow access to PHY registers for up to 25 in sfp_fixup_rollball()
383 * between PHY probe retries from 50ms to 1s so that we will wait for in sfp_fixup_rollball()
386 sfp->phy_t_retry = msecs_to_jiffies(1000); in sfp_fixup_rollball()
397 sfp->module_t_wait = msecs_to_jiffies(4000); in sfp_fixup_rollball_wait4s()
412 sfp->state_hw_mask &= ~(SFP_F_TX_FAULT | SFP_F_LOS); in sfp_fixup_halny_gsfp()
422 sfp->id.base.extended_cc = SFF8024_ECC_10GBASE_T_SFI; in sfp_fixup_rollball_cc()
454 /* Ubiquiti U-Fiber Instant module claims that support all transceiver in sfp_quirk_ubnt_uf_instant()
456 * modes and set only one mode which module supports: 1000baseX_Full. in sfp_quirk_ubnt_uf_instant()
468 // Alcatel Lucent G-010S-P can operate at 2500base-X, but incorrectly
473 // Alcatel Lucent G-010S-A can operate at 2500base-X, but report 3.2GBd
478 // Fiberstore SFP-10G-T doesn't identify as copper, uses the Rollball
479 // protocol to talk to the PHY and needs 4 sec wait before probing the
481 SFP_QUIRK_F("FS", "SFP-10G-T", sfp_fixup_fs_10gt),
483 // Fiberstore SFP-2.5G-T and SFP-10GM-T uses Rollball protocol to talk
484 // to the PHY and needs 4 sec wait before probing the PHY.
485 SFP_QUIRK_F("FS", "SFP-2.5G-T", sfp_fixup_rollball_wait4s),
486 SFP_QUIRK_F("FS", "SFP-10GM-T", sfp_fixup_rollball_wait4s),
488 // Fiberstore GPON-ONU-34-20BI can operate at 2500base-X, but report 1.2GBd
490 SFP_QUIRK("FS", "GPON-ONU-34-20BI", sfp_quirk_2500basex,
493 SFP_QUIRK_F("HALNy", "HL-GSFP", sfp_fixup_halny_gsfp),
495 // HG MXPD-483II-F 2.5G supports 2500Base-X, but incorrectly reports
497 SFP_QUIRK_M("HG GENUINE", "MXPD-483II", sfp_quirk_2500basex),
499 // Huawei MA5671A can operate at 2500base-X, but report 1.2GBd NRZ in
504 // Lantech 8330-262D-E can operate at 2500base-X, but incorrectly report
506 SFP_QUIRK_M("Lantech", "8330-262D-E", sfp_quirk_2500basex),
508 SFP_QUIRK_M("UBNT", "UF-INSTANT", sfp_quirk_ubnt_uf_instant),
510 // Walsun HXSX-ATR[CI]-1 don't identify as copper, and use the
511 // Rollball protocol to talk to the PHY.
512 SFP_QUIRK_F("Walsun", "HXSX-ATRC-1", sfp_fixup_fs_10gt),
513 SFP_QUIRK_F("Walsun", "HXSX-ATRI-1", sfp_fixup_fs_10gt),
515 // OEM SFP-GE-T is a 1000Base-T module with broken TX_FAULT indicator
516 SFP_QUIRK_F("OEM", "SFP-GE-T", sfp_fixup_ignore_tx_fault),
518 SFP_QUIRK_F("OEM", "SFP-10G-T", sfp_fixup_rollball_cc),
519 SFP_QUIRK_M("OEM", "SFP-2.5G-T", sfp_quirk_oem_2_5g),
520 SFP_QUIRK_M("OEM", "SFP-2.5G-BX10-D", sfp_quirk_2500basex),
521 SFP_QUIRK_M("OEM", "SFP-2.5G-BX10-U", sfp_quirk_2500basex),
522 SFP_QUIRK_F("OEM", "RTSFP-10", sfp_fixup_rollball_cc),
523 SFP_QUIRK_F("OEM", "RTSFP-10G", sfp_fixup_rollball_cc),
524 SFP_QUIRK_F("Turris", "RTSFP-2.5G", sfp_fixup_rollball),
525 SFP_QUIRK_F("Turris", "RTSFP-10", sfp_fixup_rollball),
526 SFP_QUIRK_F("Turris", "RTSFP-10G", sfp_fixup_rollball),
534 * some manufacturers can't read SFF-8472 and use NUL. in sfp_strlen()
558 vs = sfp_strlen(id->base.vendor_name, ARRAY_SIZE(id->base.vendor_name)); in sfp_lookup_quirk()
559 ps = sfp_strlen(id->base.vendor_pn, ARRAY_SIZE(id->base.vendor_pn)); in sfp_lookup_quirk()
562 if (sfp_match(q->vendor, id->base.vendor_name, vs) && in sfp_lookup_quirk()
563 sfp_match(q->part, id->base.vendor_pn, ps)) in sfp_lookup_quirk()
576 if (gpio_flags[i] != GPIOD_IN || !sfp->gpio[i]) in sfp_gpio_get_state()
579 v = gpiod_get_value_cansleep(sfp->gpio[i]); in sfp_gpio_get_state()
598 drive = sfp->state_hw_drive; in sfp_gpio_set_state()
600 /* Otherwise, let them float to the pull-ups */ in sfp_gpio_set_state()
603 if (sfp->gpio[GPIO_TX_DISABLE]) { in sfp_gpio_set_state()
605 gpiod_direction_output(sfp->gpio[GPIO_TX_DISABLE], in sfp_gpio_set_state()
608 gpiod_direction_input(sfp->gpio[GPIO_TX_DISABLE]); in sfp_gpio_set_state()
611 if (sfp->gpio[GPIO_RS0]) { in sfp_gpio_set_state()
613 gpiod_direction_output(sfp->gpio[GPIO_RS0], in sfp_gpio_set_state()
616 gpiod_direction_input(sfp->gpio[GPIO_RS0]); in sfp_gpio_set_state()
619 if (sfp->gpio[GPIO_RS1]) { in sfp_gpio_set_state()
621 gpiod_direction_output(sfp->gpio[GPIO_RS1], in sfp_gpio_set_state()
624 gpiod_direction_input(sfp->gpio[GPIO_RS1]); in sfp_gpio_set_state()
633 size_t block_size = sfp->i2c_block_size; in sfp_i2c_read()
653 ret = i2c_transfer(sfp->i2c, msgs, ARRAY_SIZE(msgs)); in sfp_i2c_read()
662 len -= this_len; in sfp_i2c_read()
665 return msgs[1].buf - (u8 *)buf; in sfp_i2c_read()
680 return -ENOMEM; in sfp_i2c_write()
685 ret = i2c_transfer(sfp->i2c, msgs, ARRAY_SIZE(msgs)); in sfp_i2c_write()
704 ret = i2c_smbus_xfer(sfp->i2c, bus_addr, 0, in sfp_smbus_byte_read()
712 len--; in sfp_smbus_byte_read()
717 return data - (u8 *)buf; in sfp_smbus_byte_read()
730 ret = i2c_smbus_xfer(sfp->i2c, bus_addr, 0, in sfp_smbus_byte_write()
736 len--; in sfp_smbus_byte_write()
746 sfp->i2c = i2c; in sfp_i2c_configure()
749 sfp->read = sfp_i2c_read; in sfp_i2c_configure()
750 sfp->write = sfp_i2c_write; in sfp_i2c_configure()
751 sfp->i2c_max_block_size = SFP_EEPROM_BLOCK_SIZE; in sfp_i2c_configure()
753 sfp->read = sfp_smbus_byte_read; in sfp_i2c_configure()
754 sfp->write = sfp_smbus_byte_write; in sfp_i2c_configure()
755 sfp->i2c_max_block_size = 1; in sfp_i2c_configure()
757 sfp->i2c = NULL; in sfp_i2c_configure()
758 return -EINVAL; in sfp_i2c_configure()
769 i2c_mii = mdio_i2c_alloc(sfp->dev, sfp->i2c, sfp->mdio_protocol); in sfp_i2c_mdiobus_create()
773 i2c_mii->name = "SFP I2C Bus"; in sfp_i2c_mdiobus_create()
774 i2c_mii->phy_mask = ~0; in sfp_i2c_mdiobus_create()
782 sfp->i2c_mii = i2c_mii; in sfp_i2c_mdiobus_create()
789 mdiobus_unregister(sfp->i2c_mii); in sfp_i2c_mdiobus_destroy()
790 sfp->i2c_mii = NULL; in sfp_i2c_mdiobus_destroy()
796 return sfp->read(sfp, a2, addr, buf, len); in sfp_read()
801 return sfp->write(sfp, a2, addr, buf, len); in sfp_write()
833 dev_err_ratelimited(sfp->dev, in sfp_soft_get_state()
834 "failed to read SFP soft status: %pe\n", in sfp_soft_get_state()
837 state = sfp->state; in sfp_soft_get_state()
840 return state & sfp->state_soft_mask; in sfp_soft_get_state()
874 const struct sfp_eeprom_id *id = &sfp->id; in sfp_soft_start_poll()
877 if (id->ext.enhopts & SFP_ENHOPTS_SOFT_TX_DISABLE) in sfp_soft_start_poll()
879 if (id->ext.enhopts & SFP_ENHOPTS_SOFT_TX_FAULT) in sfp_soft_start_poll()
881 if (id->ext.enhopts & SFP_ENHOPTS_SOFT_RX_LOS) in sfp_soft_start_poll()
883 if (id->ext.enhopts & SFP_ENHOPTS_SOFT_RATE_SELECT) in sfp_soft_start_poll()
884 mask |= sfp->rs_state_mask; in sfp_soft_start_poll()
886 mutex_lock(&sfp->st_mutex); in sfp_soft_start_poll()
887 // Poll the soft state for hardware pins we want to ignore in sfp_soft_start_poll()
888 sfp->state_soft_mask = ~sfp->state_hw_mask & ~sfp->state_ignore_mask & in sfp_soft_start_poll()
891 if (sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT) && in sfp_soft_start_poll()
892 !sfp->need_poll) in sfp_soft_start_poll()
893 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_soft_start_poll()
894 mutex_unlock(&sfp->st_mutex); in sfp_soft_start_poll()
899 mutex_lock(&sfp->st_mutex); in sfp_soft_stop_poll()
900 sfp->state_soft_mask = 0; in sfp_soft_stop_poll()
901 mutex_unlock(&sfp->st_mutex); in sfp_soft_stop_poll()
904 /* sfp_get_state() - must be called with st_mutex held, or in the
909 unsigned int soft = sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT); in sfp_get_state()
912 state = sfp->get_state(sfp) & sfp->state_hw_mask; in sfp_get_state()
919 /* sfp_set_state() - must be called with st_mutex held, or in the
926 sfp->set_state(sfp, state); in sfp_set_state()
928 soft = sfp->state_soft_mask & SFP_F_OUTPUTS; in sfp_set_state()
935 mutex_lock(&sfp->st_mutex); in sfp_mod_state()
936 sfp->state = (sfp->state & ~mask) | set; in sfp_mod_state()
937 sfp_set_state(sfp, sfp->state); in sfp_mod_state()
938 mutex_unlock(&sfp->st_mutex); in sfp_mod_state()
945 for (p = buf, check = 0; len; p++, len--) in sfp_check()
970 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
989 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
1008 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
1024 if (sfp->id.ext.diagmon & SFP_DIAGMON_EXT_CAL && in sfp_hwmon_is_visible()
1036 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
1072 if (sfp->id.ext.diagmon & SFP_DIAGMON_EXT_CAL) in sfp_hwmon_calibrate()
1078 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_t_slope), in sfp_hwmon_calibrate_temp()
1079 be16_to_cpu(sfp->diag.cal_t_offset), value); in sfp_hwmon_calibrate_temp()
1082 *value -= 0x10000; in sfp_hwmon_calibrate_temp()
1084 *value = DIV_ROUND_CLOSEST(*value * 1000, 256); in sfp_hwmon_calibrate_temp()
1089 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_v_slope), in sfp_hwmon_calibrate_vcc()
1090 be16_to_cpu(sfp->diag.cal_v_offset), value); in sfp_hwmon_calibrate_vcc()
1097 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_txi_slope), in sfp_hwmon_calibrate_bias()
1098 be16_to_cpu(sfp->diag.cal_txi_offset), value); in sfp_hwmon_calibrate_bias()
1105 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_txpwr_slope), in sfp_hwmon_calibrate_tx_power()
1106 be16_to_cpu(sfp->diag.cal_txpwr_offset), value); in sfp_hwmon_calibrate_tx_power()
1186 *value = be16_to_cpu(sfp->diag.temp_low_alarm); in sfp_hwmon_temp()
1191 *value = be16_to_cpu(sfp->diag.temp_low_warn); in sfp_hwmon_temp()
1195 *value = be16_to_cpu(sfp->diag.temp_high_warn); in sfp_hwmon_temp()
1200 *value = be16_to_cpu(sfp->diag.temp_high_alarm); in sfp_hwmon_temp()
1236 return -EOPNOTSUPP; in sfp_hwmon_temp()
1239 return -EOPNOTSUPP; in sfp_hwmon_temp()
1252 *value = be16_to_cpu(sfp->diag.volt_low_alarm); in sfp_hwmon_vcc()
1257 *value = be16_to_cpu(sfp->diag.volt_low_warn); in sfp_hwmon_vcc()
1262 *value = be16_to_cpu(sfp->diag.volt_high_warn); in sfp_hwmon_vcc()
1267 *value = be16_to_cpu(sfp->diag.volt_high_alarm); in sfp_hwmon_vcc()
1303 return -EOPNOTSUPP; in sfp_hwmon_vcc()
1306 return -EOPNOTSUPP; in sfp_hwmon_vcc()
1319 *value = be16_to_cpu(sfp->diag.bias_low_alarm); in sfp_hwmon_bias()
1324 *value = be16_to_cpu(sfp->diag.bias_low_warn); in sfp_hwmon_bias()
1329 *value = be16_to_cpu(sfp->diag.bias_high_warn); in sfp_hwmon_bias()
1334 *value = be16_to_cpu(sfp->diag.bias_high_alarm); in sfp_hwmon_bias()
1370 return -EOPNOTSUPP; in sfp_hwmon_bias()
1373 return -EOPNOTSUPP; in sfp_hwmon_bias()
1386 *value = be16_to_cpu(sfp->diag.txpwr_low_alarm); in sfp_hwmon_tx_power()
1391 *value = be16_to_cpu(sfp->diag.txpwr_low_warn); in sfp_hwmon_tx_power()
1396 *value = be16_to_cpu(sfp->diag.txpwr_high_warn); in sfp_hwmon_tx_power()
1401 *value = be16_to_cpu(sfp->diag.txpwr_high_alarm); in sfp_hwmon_tx_power()
1437 return -EOPNOTSUPP; in sfp_hwmon_tx_power()
1440 return -EOPNOTSUPP; in sfp_hwmon_tx_power()
1453 *value = be16_to_cpu(sfp->diag.rxpwr_low_alarm); in sfp_hwmon_rx_power()
1458 *value = be16_to_cpu(sfp->diag.rxpwr_low_warn); in sfp_hwmon_rx_power()
1463 *value = be16_to_cpu(sfp->diag.rxpwr_high_warn); in sfp_hwmon_rx_power()
1468 *value = be16_to_cpu(sfp->diag.rxpwr_high_alarm); in sfp_hwmon_rx_power()
1504 return -EOPNOTSUPP; in sfp_hwmon_rx_power()
1507 return -EOPNOTSUPP; in sfp_hwmon_rx_power()
1529 return -EOPNOTSUPP; in sfp_hwmon_read()
1532 return -EOPNOTSUPP; in sfp_hwmon_read()
1552 return -EOPNOTSUPP; in sfp_hwmon_read_string()
1561 return -EOPNOTSUPP; in sfp_hwmon_read_string()
1570 return -EOPNOTSUPP; in sfp_hwmon_read_string()
1579 return -EOPNOTSUPP; in sfp_hwmon_read_string()
1583 return -EOPNOTSUPP; in sfp_hwmon_read_string()
1586 return -EOPNOTSUPP; in sfp_hwmon_read_string()
1647 /* hwmon interface needs to access 16bit registers in atomic way to in sfp_hwmon_probe()
1649 * possible to guarantee coherency because EEPROM is broken in such way in sfp_hwmon_probe()
1650 * that does not support atomic 16bit read operation then we have to in sfp_hwmon_probe()
1653 if (sfp->i2c_block_size < 2) { in sfp_hwmon_probe()
1654 dev_info(sfp->dev, in sfp_hwmon_probe()
1656 dev_info(sfp->dev, in sfp_hwmon_probe()
1657 "diagnostic EEPROM area cannot be read atomically to guarantee data coherency\n"); in sfp_hwmon_probe()
1661 err = sfp_read(sfp, true, 0, &sfp->diag, sizeof(sfp->diag)); in sfp_hwmon_probe()
1663 if (sfp->hwmon_tries--) { in sfp_hwmon_probe()
1664 mod_delayed_work(system_wq, &sfp->hwmon_probe, in sfp_hwmon_probe()
1667 dev_warn(sfp->dev, "hwmon probe failed: %pe\n", in sfp_hwmon_probe()
1673 sfp->hwmon_name = hwmon_sanitize_name(dev_name(sfp->dev)); in sfp_hwmon_probe()
1674 if (IS_ERR(sfp->hwmon_name)) { in sfp_hwmon_probe()
1675 dev_err(sfp->dev, "out of memory for hwmon name\n"); in sfp_hwmon_probe()
1679 sfp->hwmon_dev = hwmon_device_register_with_info(sfp->dev, in sfp_hwmon_probe()
1680 sfp->hwmon_name, sfp, in sfp_hwmon_probe()
1683 if (IS_ERR(sfp->hwmon_dev)) in sfp_hwmon_probe()
1684 dev_err(sfp->dev, "failed to register hwmon device: %ld\n", in sfp_hwmon_probe()
1685 PTR_ERR(sfp->hwmon_dev)); in sfp_hwmon_probe()
1690 if (sfp->have_a2 && sfp->id.ext.diagmon & SFP_DIAGMON_DDM) { in sfp_hwmon_insert()
1691 mod_delayed_work(system_wq, &sfp->hwmon_probe, 1); in sfp_hwmon_insert()
1692 sfp->hwmon_tries = R_PROBE_RETRY_SLOW; in sfp_hwmon_insert()
1700 cancel_delayed_work_sync(&sfp->hwmon_probe); in sfp_hwmon_remove()
1701 if (!IS_ERR_OR_NULL(sfp->hwmon_dev)) { in sfp_hwmon_remove()
1702 hwmon_device_unregister(sfp->hwmon_dev); in sfp_hwmon_remove()
1703 sfp->hwmon_dev = NULL; in sfp_hwmon_remove()
1704 kfree(sfp->hwmon_name); in sfp_hwmon_remove()
1710 INIT_DELAYED_WORK(&sfp->hwmon_probe, sfp_hwmon_probe); in sfp_hwmon_init()
1717 cancel_delayed_work_sync(&sfp->hwmon_probe); in sfp_hwmon_exit()
1742 dev_dbg(sfp->dev, "tx disable %u -> %u\n", in sfp_module_tx_disable()
1743 sfp->state & SFP_F_TX_DISABLE ? 1 : 0, 1); in sfp_module_tx_disable()
1749 dev_dbg(sfp->dev, "tx disable %u -> %u\n", in sfp_module_tx_enable()
1750 sfp->state & SFP_F_TX_DISABLE ? 1 : 0, 0); in sfp_module_tx_enable()
1757 struct sfp *sfp = s->private; in sfp_debug_state_show()
1760 mod_state_to_str(sfp->sm_mod_state)); in sfp_debug_state_show()
1762 R_PROBE_RETRY_INIT - sfp->sm_mod_tries_init, in sfp_debug_state_show()
1763 R_PROBE_RETRY_SLOW - sfp->sm_mod_tries); in sfp_debug_state_show()
1765 dev_state_to_str(sfp->sm_dev_state)); in sfp_debug_state_show()
1767 sm_state_to_str(sfp->sm_state)); in sfp_debug_state_show()
1769 sfp->sm_fault_retries); in sfp_debug_state_show()
1771 sfp->sm_phy_retries); in sfp_debug_state_show()
1772 seq_printf(s, "Signalling rate: %u kBd\n", sfp->rate_kbd); in sfp_debug_state_show()
1774 sfp->rs_threshold_kbd); in sfp_debug_state_show()
1775 seq_printf(s, "moddef0: %d\n", !!(sfp->state & SFP_F_PRESENT)); in sfp_debug_state_show()
1776 seq_printf(s, "rx_los: %d\n", !!(sfp->state & SFP_F_LOS)); in sfp_debug_state_show()
1777 seq_printf(s, "tx_fault: %d\n", !!(sfp->state & SFP_F_TX_FAULT)); in sfp_debug_state_show()
1778 seq_printf(s, "tx_disable: %d\n", !!(sfp->state & SFP_F_TX_DISABLE)); in sfp_debug_state_show()
1779 seq_printf(s, "rs0: %d\n", !!(sfp->state & SFP_F_RS0)); in sfp_debug_state_show()
1780 seq_printf(s, "rs1: %d\n", !!(sfp->state & SFP_F_RS1)); in sfp_debug_state_show()
1787 sfp->debugfs_dir = debugfs_create_dir(dev_name(sfp->dev), NULL); in sfp_debugfs_init()
1789 debugfs_create_file("state", 0600, sfp->debugfs_dir, sfp, in sfp_debugfs_init()
1795 debugfs_remove_recursive(sfp->debugfs_dir); in sfp_debugfs_exit()
1811 mutex_lock(&sfp->st_mutex); in sfp_module_tx_fault_reset()
1812 state = sfp->state; in sfp_module_tx_fault_reset()
1820 mutex_unlock(&sfp->st_mutex); in sfp_module_tx_fault_reset()
1827 mod_delayed_work(system_power_efficient_wq, &sfp->timeout, in sfp_sm_set_timer()
1830 cancel_delayed_work(&sfp->timeout); in sfp_sm_set_timer()
1836 sfp->sm_state = state; in sfp_sm_next()
1843 sfp->sm_mod_state = state; in sfp_sm_mod_next()
1849 sfp_remove_phy(sfp->sfp_bus); in sfp_sm_phy_detach()
1850 phy_device_remove(sfp->mod_phy); in sfp_sm_phy_detach()
1851 phy_device_free(sfp->mod_phy); in sfp_sm_phy_detach()
1852 sfp->mod_phy = NULL; in sfp_sm_phy_detach()
1860 phy = get_phy_device(sfp->i2c_mii, addr, is_c45); in sfp_sm_probe_phy()
1861 if (phy == ERR_PTR(-ENODEV)) in sfp_sm_probe_phy()
1864 dev_err(sfp->dev, "mdiobus scan returned %pe\n", phy); in sfp_sm_probe_phy()
1869 phy->is_on_sfp_module = true; in sfp_sm_probe_phy()
1874 dev_err(sfp->dev, "phy_device_register failed: %pe\n", in sfp_sm_probe_phy()
1879 err = sfp_add_phy(sfp->sfp_bus, phy); in sfp_sm_probe_phy()
1883 dev_err(sfp->dev, "sfp_add_phy failed: %pe\n", ERR_PTR(err)); in sfp_sm_probe_phy()
1887 sfp->mod_phy = phy; in sfp_sm_probe_phy()
1894 sfp_link_up(sfp->sfp_bus); in sfp_sm_link_up()
1900 sfp_link_down(sfp->sfp_bus); in sfp_sm_link_down()
1907 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_sm_link_check_los()
1915 los = !(sfp->state & SFP_F_LOS); in sfp_sm_link_check_los()
1917 los = !!(sfp->state & SFP_F_LOS); in sfp_sm_link_check_los()
1929 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_los_event_active()
1939 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_los_event_inactive()
1947 if (sfp->sm_fault_retries && !--sfp->sm_fault_retries) { in sfp_sm_fault()
1948 dev_err(sfp->dev, in sfp_sm_fault()
1953 dev_err(sfp->dev, "module transmit fault indicated\n"); in sfp_sm_fault()
1961 if (sfp->mdio_protocol != MDIO_I2C_NONE) in sfp_sm_add_mdio_bus()
1967 /* Probe a SFP for a PHY device if the module supports copper - the PHY
1972 * negotiation enabled, but some may be in 1000base-X - which is for the
1973 * PHY driver to determine.
1975 * Clause 45 copper SFP+ modules (10G) appear to switch their interface
1976 * mode according to the negotiated line speed.
1982 switch (sfp->mdio_protocol) { in sfp_sm_probe_for_phy()
2004 u32 power_mW = 1000; in sfp_module_parse_power()
2007 if (sfp->id.ext.sff8472_compliance >= SFP_SFF8472_COMPLIANCE_REV10_2 && in sfp_module_parse_power()
2008 sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_POWER_DECL)) in sfp_module_parse_power()
2011 if (sfp->id.ext.sff8472_compliance >= SFP_SFF8472_COMPLIANCE_REV11_4 && in sfp_module_parse_power()
2012 sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_HIGH_POWER_LEVEL)) in sfp_module_parse_power()
2016 if (power_mW <= 1000) { in sfp_module_parse_power()
2017 sfp->module_power_mW = power_mW; in sfp_module_parse_power()
2021 supports_a2 = sfp->id.ext.sff8472_compliance != in sfp_module_parse_power()
2023 sfp->id.ext.diagmon & SFP_DIAGMON_DDM; in sfp_module_parse_power()
2025 if (power_mW > sfp->max_power_mW) { in sfp_module_parse_power()
2028 /* The module appears not to implement bus address in sfp_module_parse_power()
2032 dev_err(sfp->dev, in sfp_module_parse_power()
2034 power_mW / 1000, (power_mW / 100) % 10); in sfp_module_parse_power()
2035 return -EINVAL; in sfp_module_parse_power()
2037 dev_warn(sfp->dev, in sfp_module_parse_power()
2039 power_mW / 1000, (power_mW / 100) % 10); in sfp_module_parse_power()
2046 * module appears not to implement bus address 0xa2, so assume in sfp_module_parse_power()
2056 if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE) { in sfp_module_parse_power()
2057 dev_warn(sfp->dev, in sfp_module_parse_power()
2059 power_mW / 1000, (power_mW / 100) % 10); in sfp_module_parse_power()
2063 sfp->module_power_mW = power_mW; in sfp_module_parse_power()
2076 dev_err(sfp->dev, "failed to %sable high power: %pe\n", in sfp_sm_mod_hpower()
2078 return -EAGAIN; in sfp_sm_mod_hpower()
2082 dev_info(sfp->dev, "Module switched to %u.%uW power level\n", in sfp_sm_mod_hpower()
2083 sfp->module_power_mW / 1000, in sfp_sm_mod_hpower()
2084 (sfp->module_power_mW / 100) % 10); in sfp_sm_mod_hpower()
2093 sfp->rs_threshold_kbd = 0; in sfp_module_parse_rate_select()
2094 sfp->rs_state_mask = 0; in sfp_module_parse_rate_select()
2096 if (!(sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_RATE_SELECT))) in sfp_module_parse_rate_select()
2100 /* Default to INF-8074 RateSelect operation. The signalling threshold in sfp_module_parse_rate_select()
2102 * SFF-8079 reveals that it is understood that RS0 will be low for in sfp_module_parse_rate_select()
2103 * 1.0625Gb/s and high for 2.125Gb/s. Choose a value half-way between. in sfp_module_parse_rate_select()
2104 * This method exists prior to SFF-8472. in sfp_module_parse_rate_select()
2106 sfp->rs_state_mask = SFP_F_RS0; in sfp_module_parse_rate_select()
2107 sfp->rs_threshold_kbd = 1594; in sfp_module_parse_rate_select()
2109 /* Parse the rate identifier, which is complicated due to history: in sfp_module_parse_rate_select()
2110 * SFF-8472 rev 9.5 marks this field as reserved. in sfp_module_parse_rate_select()
2111 * SFF-8079 references SFF-8472 rev 9.5 and defines bit 0. SFF-8472 in sfp_module_parse_rate_select()
2113 * SFF-8472 rev 10.2 defines this field using values 0..4 in sfp_module_parse_rate_select()
2114 * SFF-8472 rev 11.0 redefines this field with bit 0 for SFF-8079 in sfp_module_parse_rate_select()
2117 rate_id = sfp->id.base.rate_id; in sfp_module_parse_rate_select()
2122 /* SFF-8472 rev 10.0..10.4 did not account for SFF-8079 using bit 0, in sfp_module_parse_rate_select()
2123 * and allocated value 3 to SFF-8431 independent tx/rx rate select. in sfp_module_parse_rate_select()
2124 * Convert this to a SFF-8472 rev 11.0 rate identifier. in sfp_module_parse_rate_select()
2126 if (sfp->id.ext.sff8472_compliance >= SFP_SFF8472_COMPLIANCE_REV10_2 && in sfp_module_parse_rate_select()
2127 sfp->id.ext.sff8472_compliance < SFP_SFF8472_COMPLIANCE_REV11_0 && in sfp_module_parse_rate_select()
2132 /* SFF-8079 RateSelect / Application Select in conjunction with in sfp_module_parse_rate_select()
2133 * SFF-8472 rev 9.5. SFF-8079 defines rate_id as a bitfield in sfp_module_parse_rate_select()
2134 * with only bit 0 used, which takes precedence over SFF-8472. in sfp_module_parse_rate_select()
2136 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_APP_SELECT_SFF8079)) { in sfp_module_parse_rate_select()
2137 /* SFF-8079 Part 1 - rate selection between Fibre in sfp_module_parse_rate_select()
2139 * is high for 2125, so we have to subtract 1 to in sfp_module_parse_rate_select()
2142 sfp->rs_threshold_kbd = 2125 - 1; in sfp_module_parse_rate_select()
2143 sfp->rs_state_mask = SFP_F_RS0; in sfp_module_parse_rate_select()
2148 /* SFF-8472 rev 9.5 does not define the rate identifier */ in sfp_module_parse_rate_select()
2149 if (sfp->id.ext.sff8472_compliance <= SFP_SFF8472_COMPLIANCE_REV9_5) in sfp_module_parse_rate_select()
2152 /* SFF-8472 rev 11.0 defines rate_id as a numerical value which will in sfp_module_parse_rate_select()
2153 * always have bit 0 clear due to SFF-8079's bitfield usage of rate_id. in sfp_module_parse_rate_select()
2157 sfp->rs_threshold_kbd = 4250; in sfp_module_parse_rate_select()
2158 sfp->rs_state_mask = SFP_F_RS0; in sfp_module_parse_rate_select()
2162 sfp->rs_threshold_kbd = 4250; in sfp_module_parse_rate_select()
2163 sfp->rs_state_mask = SFP_F_RS1; in sfp_module_parse_rate_select()
2167 sfp->rs_threshold_kbd = 4250; in sfp_module_parse_rate_select()
2168 sfp->rs_state_mask = SFP_F_RS0 | SFP_F_RS1; in sfp_module_parse_rate_select()
2172 sfp->rs_threshold_kbd = 9000; in sfp_module_parse_rate_select()
2173 sfp->rs_state_mask = SFP_F_RS0 | SFP_F_RS1; in sfp_module_parse_rate_select()
2178 /* GPON modules based on Realtek RTL8672 and RTL9601C chips (e.g. V-SOL
2179 * V2801F, CarlitoxxPro CPGOS03-0490, Ubiquiti U-Fiber Instant, ...) do
2180 * not support multibyte reads from the EEPROM. Each multi-byte read
2182 * no way to identify which modules are using Realtek RTL8672 and RTL9601C
2183 * chips. Moreover every OEM of V-SOL V2801F module puts its own vendor
2184 * name and vendor id into EEPROM, so there is even no way to detect if
2185 * module is V-SOL V2801F. Therefore check for those zeros in the read
2186 * data and then based on check switch to reading EEPROM to one byte
2191 size_t i, block_size = sfp->i2c_block_size; in sfp_id_needs_byte_io()
2198 if (memchr_inv(buf + i, '\0', min(block_size - 1, len - i))) in sfp_id_needs_byte_io()
2209 if (id->base.phys_id != SFF8024_ID_SFF_8472 || in sfp_cotsworks_fixup_check()
2210 id->base.phys_ext_id != SFP_PHYS_EXT_ID_SFP || in sfp_cotsworks_fixup_check()
2211 id->base.connector != SFF8024_CONNECTOR_LC) { in sfp_cotsworks_fixup_check()
2212 dev_warn(sfp->dev, "Rewriting fiber module EEPROM with corrected values\n"); in sfp_cotsworks_fixup_check()
2213 id->base.phys_id = SFF8024_ID_SFF_8472; in sfp_cotsworks_fixup_check()
2214 id->base.phys_ext_id = SFP_PHYS_EXT_ID_SFP; in sfp_cotsworks_fixup_check()
2215 id->base.connector = SFF8024_CONNECTOR_LC; in sfp_cotsworks_fixup_check()
2216 err = sfp_write(sfp, false, SFP_PHYS_ID, &id->base, 3); in sfp_cotsworks_fixup_check()
2218 dev_err(sfp->dev, in sfp_cotsworks_fixup_check()
2219 "Failed to rewrite module EEPROM: %pe\n", in sfp_cotsworks_fixup_check()
2224 /* Cotsworks modules have been found to require a delay between write operations. */ in sfp_cotsworks_fixup_check()
2227 /* Update base structure checksum */ in sfp_cotsworks_fixup_check()
2228 check = sfp_check(&id->base, sizeof(id->base) - 1); in sfp_cotsworks_fixup_check()
2231 dev_err(sfp->dev, in sfp_cotsworks_fixup_check()
2232 "Failed to update base structure checksum in fiber module EEPROM: %pe\n", in sfp_cotsworks_fixup_check()
2243 if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE) in sfp_module_parse_sff8472()
2244 dev_warn(sfp->dev, in sfp_module_parse_sff8472()
2245 "module address swap to access page 0xA2 is not supported.\n"); in sfp_module_parse_sff8472()
2247 sfp->have_a2 = true; in sfp_module_parse_sff8472()
2254 /* SFP module inserted - read I2C data */ in sfp_sm_mod_probe()
2262 sfp->i2c_block_size = sfp->i2c_max_block_size; in sfp_sm_mod_probe()
2264 ret = sfp_read(sfp, false, 0, &id.base, sizeof(id.base)); in sfp_sm_mod_probe()
2267 dev_err(sfp->dev, "failed to read EEPROM: %pe\n", in sfp_sm_mod_probe()
2269 return -EAGAIN; in sfp_sm_mod_probe()
2272 if (ret != sizeof(id.base)) { in sfp_sm_mod_probe()
2273 dev_err(sfp->dev, "EEPROM short read: %pe\n", ERR_PTR(ret)); in sfp_sm_mod_probe()
2274 return -EAGAIN; in sfp_sm_mod_probe()
2278 * address 0x51 is just one byte at a time. Also SFF-8472 requires in sfp_sm_mod_probe()
2280 * fields, so do not switch to one byte reading at a time unless it in sfp_sm_mod_probe()
2283 if (sfp_id_needs_byte_io(sfp, &id.base, sizeof(id.base))) { in sfp_sm_mod_probe()
2284 dev_info(sfp->dev, in sfp_sm_mod_probe()
2286 dev_info(sfp->dev, in sfp_sm_mod_probe()
2287 "Switching to reading EEPROM to one byte at a time\n"); in sfp_sm_mod_probe()
2288 sfp->i2c_block_size = 1; in sfp_sm_mod_probe()
2290 ret = sfp_read(sfp, false, 0, &id.base, sizeof(id.base)); in sfp_sm_mod_probe()
2293 dev_err(sfp->dev, in sfp_sm_mod_probe()
2294 "failed to read EEPROM: %pe\n", in sfp_sm_mod_probe()
2296 return -EAGAIN; in sfp_sm_mod_probe()
2299 if (ret != sizeof(id.base)) { in sfp_sm_mod_probe()
2300 dev_err(sfp->dev, "EEPROM short read: %pe\n", in sfp_sm_mod_probe()
2302 return -EAGAIN; in sfp_sm_mod_probe()
2306 /* Cotsworks do not seem to update the checksums when they in sfp_sm_mod_probe()
2310 cotsworks = !memcmp(id.base.vendor_name, "COTSWORKS ", 16); in sfp_sm_mod_probe()
2311 cotsworks_sfbg = !memcmp(id.base.vendor_pn, "SFBG", 4); in sfp_sm_mod_probe()
2323 /* Validate the checksum over the base structure */ in sfp_sm_mod_probe()
2324 check = sfp_check(&id.base, sizeof(id.base) - 1); in sfp_sm_mod_probe()
2325 if (check != id.base.cc_base) { in sfp_sm_mod_probe()
2327 dev_warn(sfp->dev, in sfp_sm_mod_probe()
2328 "EEPROM base structure checksum failure (0x%02x != 0x%02x)\n", in sfp_sm_mod_probe()
2329 check, id.base.cc_base); in sfp_sm_mod_probe()
2331 dev_err(sfp->dev, in sfp_sm_mod_probe()
2332 "EEPROM base structure checksum failure: 0x%02x != 0x%02x\n", in sfp_sm_mod_probe()
2333 check, id.base.cc_base); in sfp_sm_mod_probe()
2336 return -EINVAL; in sfp_sm_mod_probe()
2343 dev_err(sfp->dev, "failed to read EEPROM: %pe\n", in sfp_sm_mod_probe()
2345 return -EAGAIN; in sfp_sm_mod_probe()
2349 dev_err(sfp->dev, "EEPROM short read: %pe\n", ERR_PTR(ret)); in sfp_sm_mod_probe()
2350 return -EAGAIN; in sfp_sm_mod_probe()
2353 check = sfp_check(&id.ext, sizeof(id.ext) - 1); in sfp_sm_mod_probe()
2356 dev_warn(sfp->dev, in sfp_sm_mod_probe()
2357 "EEPROM extended structure checksum failure (0x%02x != 0x%02x)\n", in sfp_sm_mod_probe()
2360 dev_err(sfp->dev, in sfp_sm_mod_probe()
2361 "EEPROM extended structure checksum failure: 0x%02x != 0x%02x\n", in sfp_sm_mod_probe()
2369 sfp->id = id; in sfp_sm_mod_probe()
2371 dev_info(sfp->dev, "module %.*s %.*s rev %.*s sn %.*s dc %.*s\n", in sfp_sm_mod_probe()
2372 (int)sizeof(id.base.vendor_name), id.base.vendor_name, in sfp_sm_mod_probe()
2373 (int)sizeof(id.base.vendor_pn), id.base.vendor_pn, in sfp_sm_mod_probe()
2374 (int)sizeof(id.base.vendor_rev), id.base.vendor_rev, in sfp_sm_mod_probe()
2379 if (!sfp->type->module_supported(&id)) { in sfp_sm_mod_probe()
2380 dev_err(sfp->dev, in sfp_sm_mod_probe()
2381 "module is not supported - phys id 0x%02x 0x%02x\n", in sfp_sm_mod_probe()
2382 sfp->id.base.phys_id, sfp->id.base.phys_ext_id); in sfp_sm_mod_probe()
2383 return -EINVAL; in sfp_sm_mod_probe()
2386 if (sfp->id.ext.sff8472_compliance != SFP_SFF8472_COMPLIANCE_NONE) { in sfp_sm_mod_probe()
2400 if (sfp->gpio[GPIO_TX_DISABLE]) in sfp_sm_mod_probe()
2402 if (sfp->gpio[GPIO_TX_FAULT]) in sfp_sm_mod_probe()
2404 if (sfp->gpio[GPIO_LOS]) in sfp_sm_mod_probe()
2406 if (sfp->gpio[GPIO_RS0]) in sfp_sm_mod_probe()
2408 if (sfp->gpio[GPIO_RS1]) in sfp_sm_mod_probe()
2411 sfp->module_t_start_up = T_START_UP; in sfp_sm_mod_probe()
2412 sfp->module_t_wait = T_WAIT; in sfp_sm_mod_probe()
2413 sfp->phy_t_retry = T_PHY_RETRY; in sfp_sm_mod_probe()
2415 sfp->state_ignore_mask = 0; in sfp_sm_mod_probe()
2417 if (sfp->id.base.extended_cc == SFF8024_ECC_10GBASE_T_SFI || in sfp_sm_mod_probe()
2418 sfp->id.base.extended_cc == SFF8024_ECC_10GBASE_T_SR || in sfp_sm_mod_probe()
2419 sfp->id.base.extended_cc == SFF8024_ECC_5GBASE_T || in sfp_sm_mod_probe()
2420 sfp->id.base.extended_cc == SFF8024_ECC_2_5GBASE_T) in sfp_sm_mod_probe()
2421 sfp->mdio_protocol = MDIO_I2C_C45; in sfp_sm_mod_probe()
2422 else if (sfp->id.base.e1000_base_t) in sfp_sm_mod_probe()
2423 sfp->mdio_protocol = MDIO_I2C_MARVELL_C22; in sfp_sm_mod_probe()
2425 sfp->mdio_protocol = MDIO_I2C_NONE; in sfp_sm_mod_probe()
2427 sfp->quirk = sfp_lookup_quirk(&id); in sfp_sm_mod_probe()
2429 mutex_lock(&sfp->st_mutex); in sfp_sm_mod_probe()
2430 /* Initialise state bits to use from hardware */ in sfp_sm_mod_probe()
2431 sfp->state_hw_mask = mask; in sfp_sm_mod_probe()
2433 /* We want to drive the rate select pins that the module is using */ in sfp_sm_mod_probe()
2434 sfp->state_hw_drive |= sfp->rs_state_mask; in sfp_sm_mod_probe()
2436 if (sfp->quirk && sfp->quirk->fixup) in sfp_sm_mod_probe()
2437 sfp->quirk->fixup(sfp); in sfp_sm_mod_probe()
2439 sfp->state_hw_mask &= ~sfp->state_ignore_mask; in sfp_sm_mod_probe()
2440 mutex_unlock(&sfp->st_mutex); in sfp_sm_mod_probe()
2447 if (sfp->sm_mod_state > SFP_MOD_WAITDEV) in sfp_sm_mod_remove()
2448 sfp_module_remove(sfp->sfp_bus); in sfp_sm_mod_remove()
2452 memset(&sfp->id, 0, sizeof(sfp->id)); in sfp_sm_mod_remove()
2453 sfp->module_power_mW = 0; in sfp_sm_mod_remove()
2454 sfp->state_hw_drive = SFP_F_TX_DISABLE; in sfp_sm_mod_remove()
2455 sfp->have_a2 = false; in sfp_sm_mod_remove()
2457 dev_info(sfp->dev, "module removed\n"); in sfp_sm_mod_remove()
2463 switch (sfp->sm_dev_state) { in sfp_sm_device()
2466 sfp->sm_dev_state = SFP_DEV_DOWN; in sfp_sm_device()
2471 sfp->sm_dev_state = SFP_DEV_DETACHED; in sfp_sm_device()
2473 sfp->sm_dev_state = SFP_DEV_UP; in sfp_sm_device()
2478 sfp->sm_dev_state = SFP_DEV_DETACHED; in sfp_sm_device()
2480 sfp->sm_dev_state = SFP_DEV_DOWN; in sfp_sm_device()
2486 * the on-board EEPROM, and sets up the power level.
2500 if (sfp->sm_dev_state < SFP_DEV_DOWN && in sfp_sm_module()
2501 sfp->sm_mod_state > SFP_MOD_WAITDEV) { in sfp_sm_module()
2502 if (sfp->module_power_mW > 1000 && in sfp_sm_module()
2503 sfp->sm_mod_state > SFP_MOD_HPOWER) in sfp_sm_module()
2509 switch (sfp->sm_mod_state) { in sfp_sm_module()
2513 sfp->sm_mod_tries_init = R_PROBE_RETRY_INIT; in sfp_sm_module()
2514 sfp->sm_mod_tries = R_PROBE_RETRY_SLOW; in sfp_sm_module()
2519 /* Wait for T_PROBE_INIT to time out */ in sfp_sm_module()
2523 err = sfp_sm_mod_probe(sfp, sfp->sm_mod_tries == 1); in sfp_sm_module()
2524 if (err == -EAGAIN) { in sfp_sm_module()
2525 if (sfp->sm_mod_tries_init && in sfp_sm_module()
2526 --sfp->sm_mod_tries_init) { in sfp_sm_module()
2529 } else if (sfp->sm_mod_tries && --sfp->sm_mod_tries) { in sfp_sm_module()
2530 if (sfp->sm_mod_tries == R_PROBE_RETRY_SLOW - 1) in sfp_sm_module()
2531 dev_warn(sfp->dev, in sfp_sm_module()
2532 "please wait, module slow to respond\n"); in sfp_sm_module()
2542 /* Force a poll to re-read the hardware signal state after in sfp_sm_module()
2545 mod_delayed_work(system_wq, &sfp->poll, 1); in sfp_sm_module()
2549 dev_warn(sfp->dev, "hwmon probe failed: %pe\n", in sfp_sm_module()
2556 if (sfp->sm_dev_state < SFP_DEV_DOWN) in sfp_sm_module()
2559 /* Report the module insertion to the upstream device */ in sfp_sm_module()
2560 err = sfp_module_insert(sfp->sfp_bus, &sfp->id, in sfp_sm_module()
2561 sfp->quirk); in sfp_sm_module()
2568 if (sfp->module_power_mW <= 1000) in sfp_sm_module()
2577 if (err != -EAGAIN) { in sfp_sm_module()
2578 sfp_module_remove(sfp->sfp_bus); in sfp_sm_module()
2590 /* Wait for T_HPOWER_LEVEL to time out */ in sfp_sm_module()
2610 if (sfp->sm_state != SFP_S_DOWN && in sfp_sm_main()
2611 (sfp->sm_mod_state != SFP_MOD_PRESENT || in sfp_sm_main()
2612 sfp->sm_dev_state != SFP_DEV_UP)) { in sfp_sm_main()
2613 if (sfp->sm_state == SFP_S_LINK_UP && in sfp_sm_main()
2614 sfp->sm_dev_state == SFP_DEV_UP) in sfp_sm_main()
2616 if (sfp->sm_state > SFP_S_INIT) in sfp_sm_main()
2617 sfp_module_stop(sfp->sfp_bus); in sfp_sm_main()
2618 if (sfp->mod_phy) in sfp_sm_main()
2620 if (sfp->i2c_mii) in sfp_sm_main()
2629 switch (sfp->sm_state) { in sfp_sm_main()
2631 if (sfp->sm_mod_state != SFP_MOD_PRESENT || in sfp_sm_main()
2632 sfp->sm_dev_state != SFP_DEV_UP) in sfp_sm_main()
2635 /* Only use the soft state bits if we have access to the A2h in sfp_sm_main()
2636 * memory, which implies that we have some level of SFF-8472 in sfp_sm_main()
2639 if (sfp->have_a2) in sfp_sm_main()
2645 sfp->sm_fault_retries = N_FAULT_INIT; in sfp_sm_main()
2647 /* We need to check the TX_FAULT state, which is not defined in sfp_sm_main()
2648 * while TX_DISABLE is asserted. The earliest we want to do in sfp_sm_main()
2652 sfp_sm_next(sfp, SFP_S_WAIT, sfp->module_t_wait); in sfp_sm_main()
2659 if (sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2660 /* Wait up to t_init (SFF-8472) or t_start_up (SFF-8431) in sfp_sm_main()
2661 * from the TX_DISABLE deassertion for the module to in sfp_sm_main()
2665 timeout = sfp->module_t_start_up; in sfp_sm_main()
2666 if (timeout > sfp->module_t_wait) in sfp_sm_main()
2667 timeout -= sfp->module_t_wait; in sfp_sm_main()
2681 if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2686 sfp->sm_fault_retries == N_FAULT_INIT); in sfp_sm_main()
2695 sfp->sm_phy_retries = R_PHY_RETRY; in sfp_sm_main()
2708 if (ret == -ENODEV) { in sfp_sm_main()
2709 if (--sfp->sm_phy_retries) { in sfp_sm_main()
2711 sfp->phy_t_retry); in sfp_sm_main()
2712 dev_dbg(sfp->dev, in sfp_sm_main()
2714 sfp->sm_phy_retries); in sfp_sm_main()
2717 dev_info(sfp->dev, "no PHY detected\n"); in sfp_sm_main()
2723 if (sfp_module_start(sfp->sfp_bus)) { in sfp_sm_main()
2730 sfp->sm_fault_retries = N_FAULT; in sfp_sm_main()
2736 sfp_sm_next(sfp, SFP_S_INIT, sfp->module_t_start_up); in sfp_sm_main()
2760 sfp_sm_next(sfp, SFP_S_REINIT, sfp->module_t_start_up); in sfp_sm_main()
2765 if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2768 dev_info(sfp->dev, "module transmit fault recovered\n"); in sfp_sm_main()
2780 dev_dbg(sfp->dev, "SM: enter %s:%s:%s event %s\n", in __sfp_sm_event()
2781 mod_state_to_str(sfp->sm_mod_state), in __sfp_sm_event()
2782 dev_state_to_str(sfp->sm_dev_state), in __sfp_sm_event()
2783 sm_state_to_str(sfp->sm_state), in __sfp_sm_event()
2790 dev_dbg(sfp->dev, "SM: exit %s:%s:%s\n", in __sfp_sm_event()
2791 mod_state_to_str(sfp->sm_mod_state), in __sfp_sm_event()
2792 dev_state_to_str(sfp->sm_dev_state), in __sfp_sm_event()
2793 sm_state_to_str(sfp->sm_state)); in __sfp_sm_event()
2798 mutex_lock(&sfp->sm_mutex); in sfp_sm_event()
2800 mutex_unlock(&sfp->sm_mutex); in sfp_sm_event()
2827 sfp->rate_kbd = rate_kbd; in sfp_set_signal_rate()
2829 if (rate_kbd > sfp->rs_threshold_kbd) in sfp_set_signal_rate()
2830 set = sfp->rs_state_mask; in sfp_set_signal_rate()
2841 if (sfp->id.ext.sff8472_compliance && in sfp_module_info()
2842 !(sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE)) { in sfp_module_info()
2843 modinfo->type = ETH_MODULE_SFF_8472; in sfp_module_info()
2844 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; in sfp_module_info()
2846 modinfo->type = ETH_MODULE_SFF_8079; in sfp_module_info()
2847 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; in sfp_module_info()
2858 if (!(sfp->state & SFP_F_PRESENT)) in sfp_module_eeprom()
2859 return -ENODEV; in sfp_module_eeprom()
2861 if (ee->len == 0) in sfp_module_eeprom()
2862 return -EINVAL; in sfp_module_eeprom()
2864 first = ee->offset; in sfp_module_eeprom()
2865 last = ee->offset + ee->len; in sfp_module_eeprom()
2868 len -= first; in sfp_module_eeprom()
2879 len -= first; in sfp_module_eeprom()
2880 first -= ETH_MODULE_SFF_8079_LEN; in sfp_module_eeprom()
2893 if (!(sfp->state & SFP_F_PRESENT)) in sfp_module_eeprom_by_page()
2894 return -ENODEV; in sfp_module_eeprom_by_page()
2896 if (page->bank) { in sfp_module_eeprom_by_page()
2898 return -EOPNOTSUPP; in sfp_module_eeprom_by_page()
2901 if (page->page) { in sfp_module_eeprom_by_page()
2903 return -EOPNOTSUPP; in sfp_module_eeprom_by_page()
2906 if (page->i2c_address != 0x50 && in sfp_module_eeprom_by_page()
2907 page->i2c_address != 0x51) { in sfp_module_eeprom_by_page()
2909 return -EOPNOTSUPP; in sfp_module_eeprom_by_page()
2912 return sfp_read(sfp, page->i2c_address == 0x51, page->offset, in sfp_module_eeprom_by_page()
2913 page->data, page->length); in sfp_module_eeprom_by_page()
2941 mutex_lock(&sfp->st_mutex); in sfp_check_state()
2943 changed = state ^ sfp->state; in sfp_check_state()
2948 dev_dbg(sfp->dev, "%s %u -> %u\n", gpio_names[i], in sfp_check_state()
2949 !!(sfp->state & BIT(i)), !!(state & BIT(i))); in sfp_check_state()
2951 state |= sfp->state & SFP_F_OUTPUTS; in sfp_check_state()
2952 sfp->state = state; in sfp_check_state()
2953 mutex_unlock(&sfp->st_mutex); in sfp_check_state()
2955 mutex_lock(&sfp->sm_mutex); in sfp_check_state()
2967 mutex_unlock(&sfp->sm_mutex); in sfp_check_state()
2986 // st_mutex doesn't need to be held here for state_soft_mask, in sfp_poll()
2988 if (sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT) || in sfp_poll()
2989 sfp->need_poll) in sfp_poll()
2990 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_poll()
2999 return ERR_PTR(-ENOMEM); in sfp_alloc()
3001 sfp->dev = dev; in sfp_alloc()
3003 mutex_init(&sfp->sm_mutex); in sfp_alloc()
3004 mutex_init(&sfp->st_mutex); in sfp_alloc()
3005 INIT_DELAYED_WORK(&sfp->poll, sfp_poll); in sfp_alloc()
3006 INIT_DELAYED_WORK(&sfp->timeout, sfp_timeout); in sfp_alloc()
3019 cancel_delayed_work_sync(&sfp->poll); in sfp_cleanup()
3020 cancel_delayed_work_sync(&sfp->timeout); in sfp_cleanup()
3021 if (sfp->i2c_mii) { in sfp_cleanup()
3022 mdiobus_unregister(sfp->i2c_mii); in sfp_cleanup()
3023 mdiobus_free(sfp->i2c_mii); in sfp_cleanup()
3025 if (sfp->i2c) in sfp_cleanup()
3026 i2c_put_adapter(sfp->i2c); in sfp_cleanup()
3036 h = fwnode_find_reference(dev_fwnode(sfp->dev), "i2c-bus", 0); in sfp_i2c_get()
3038 dev_err(sfp->dev, "missing 'i2c-bus' property\n"); in sfp_i2c_get()
3039 return -ENODEV; in sfp_i2c_get()
3044 err = -EPROBE_DEFER; in sfp_i2c_get()
3063 sfp = sfp_alloc(&pdev->dev); in sfp_probe()
3069 err = devm_add_action_or_reset(sfp->dev, sfp_cleanup, sfp); in sfp_probe()
3073 sff = device_get_match_data(sfp->dev); in sfp_probe()
3077 sfp->type = sff; in sfp_probe()
3084 if (sff->gpios & BIT(i)) { in sfp_probe()
3085 sfp->gpio[i] = devm_gpiod_get_optional(sfp->dev, in sfp_probe()
3087 if (IS_ERR(sfp->gpio[i])) in sfp_probe()
3088 return PTR_ERR(sfp->gpio[i]); in sfp_probe()
3091 sfp->state_hw_mask = SFP_F_PRESENT; in sfp_probe()
3092 sfp->state_hw_drive = SFP_F_TX_DISABLE; in sfp_probe()
3094 sfp->get_state = sfp_gpio_get_state; in sfp_probe()
3095 sfp->set_state = sfp_gpio_set_state; in sfp_probe()
3098 if (!(sfp->gpio[GPIO_MODDEF0])) in sfp_probe()
3099 sfp->get_state = sff_gpio_get_state; in sfp_probe()
3101 device_property_read_u32(&pdev->dev, "maximum-power-milliwatt", in sfp_probe()
3102 &sfp->max_power_mW); in sfp_probe()
3103 if (sfp->max_power_mW < 1000) { in sfp_probe()
3104 if (sfp->max_power_mW) in sfp_probe()
3105 dev_warn(sfp->dev, in sfp_probe()
3107 sfp->max_power_mW = 1000; in sfp_probe()
3110 dev_info(sfp->dev, "Host maximum power %u.%uW\n", in sfp_probe()
3111 sfp->max_power_mW / 1000, (sfp->max_power_mW / 100) % 10); in sfp_probe()
3116 sfp->state = sfp_get_state(sfp) | SFP_F_TX_DISABLE; in sfp_probe()
3118 if (sfp->gpio[GPIO_RS0] && in sfp_probe()
3119 gpiod_get_value_cansleep(sfp->gpio[GPIO_RS0])) in sfp_probe()
3120 sfp->state |= SFP_F_RS0; in sfp_probe()
3121 sfp_set_state(sfp, sfp->state); in sfp_probe()
3123 if (sfp->state & SFP_F_PRESENT) { in sfp_probe()
3130 if (gpio_flags[i] != GPIOD_IN || !sfp->gpio[i]) in sfp_probe()
3133 sfp->gpio_irq[i] = gpiod_to_irq(sfp->gpio[i]); in sfp_probe()
3134 if (sfp->gpio_irq[i] < 0) { in sfp_probe()
3135 sfp->gpio_irq[i] = 0; in sfp_probe()
3136 sfp->need_poll = true; in sfp_probe()
3140 sfp_irq_name = devm_kasprintf(sfp->dev, GFP_KERNEL, in sfp_probe()
3141 "%s-%s", dev_name(sfp->dev), in sfp_probe()
3145 return -ENOMEM; in sfp_probe()
3147 err = devm_request_threaded_irq(sfp->dev, sfp->gpio_irq[i], in sfp_probe()
3154 sfp->gpio_irq[i] = 0; in sfp_probe()
3155 sfp->need_poll = true; in sfp_probe()
3159 if (sfp->need_poll) in sfp_probe()
3160 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_probe()
3163 * wired as modules using a laser as their light source will continue to in sfp_probe()
3167 if (!sfp->gpio[GPIO_TX_DISABLE]) in sfp_probe()
3168 dev_warn(sfp->dev, in sfp_probe()
3171 sfp->sfp_bus = sfp_register_socket(sfp->dev, sfp, &sfp_module_ops); in sfp_probe()
3172 if (!sfp->sfp_bus) in sfp_probe()
3173 return -ENOMEM; in sfp_probe()
3175 if (sfp->i2c_max_block_size < 2) in sfp_probe()
3176 dev_warn(sfp->dev, in sfp_probe()
3181 "or community can do to fix it, the kernel will try best efforts. Please\n" in sfp_probe()
3182 "verify any problems on hardware that supports multi-byte I2C transactions.\n"); in sfp_probe()
3194 sfp_unregister_socket(sfp->sfp_bus); in sfp_remove()
3207 if (!sfp->gpio_irq[i]) in sfp_shutdown()
3210 devm_free_irq(sfp->dev, sfp->gpio_irq[i], sfp); in sfp_shutdown()
3213 cancel_delayed_work_sync(&sfp->poll); in sfp_shutdown()
3214 cancel_delayed_work_sync(&sfp->timeout); in sfp_shutdown()