e1000_kmrn_...ound_ich8lan(9)

🌸 NAME 🌸

okay so welcome to the Kernel API Manual, bestie 💖 — today's main character is e1000_kmrn_lock_loss_workaround_ich8lan, and it's literally the Kumeran workaround. that's the whole name, no notes, periodt.

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✨ SYNOPSIS ✨

s32 e1000_kmrn_lock_loss_workaround_ich8lan (struct e1000_hw *hw );

she takes exactly one thing and returns an s32, no cap 🫶

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🎀 ARGUMENTS 🎀

• hw — pointer to the HW structure. that's it. that's the arg. she needs the hardware struct and nothing else 💅

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🦋 DESCRIPTION 🦋

so here's the vibe: this is the work-around for 82566 Kumeran PCS lock loss. it kicks in on link status change — like a PCI reset or a speed change — when the link is up and the speed is gigabit- (yes the sentence genuinely trails off like that in the source, we love an unfinished thought 😭💀). and then the flow goes like this:

• 0 — if the workaround is optionally disabled, do nothing. we simply do not participate 🙈
• 1 — wait 1ms for the Kumeran link to come up ⏳
• 2 — check the Kumeran Diagnostic register PCS lock loss bit 🔍
• 3 — if it's not set, the link is locked, all is good, we stan a healthy link 👑 ...otherwise (dun dun dunnn) 💀
• 4 — reset the PHY 🔄
• 5 — repeat up to 10 times 🔁

that's the whole little ritual, and honestly? iconic. it just keeps trying, ten whole times, until the lock behaves 🌈

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⭐ NOTE ⭐

ngl this is only called for IGP3 copper when the speed is 1gb. so if you're out here on some other config wondering why she's not showing up for you — that's why, bestie 🫶

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💜 SEE ALSO 💜

the kernel file lives right here, character for character:

• ./drivers/net/ethernet/intel/e1000e/ich8lan.c

and now, the friend group — the whole entire crew, in order, no skips, no edits 🧚:

e1000_phy_is_accessible_pchlan(9), e1000_toggle_lanphypc_pch_lpt(9), e1000_reconfigure_k1_params(9), e1000_init_phy_workarounds_pchlan(9), e1000_init_phy_params_pchlan(9), e1000_init_phy_params_ich8lan(9), e1000_init_nvm_params_ich8lan(9), e1000_init_mac_params_ich8lan(9), __e1000_access_emi_reg_locked(9), e1000_read_emi_reg_locked(9), e1000_write_emi_reg_locked(9), e1000_set_eee_pchlan(9), e1000_k1_workaround_lpt_lp(9), e1000_platform_pm_pch_lpt(9), e1000e_force_smbus(9), e1000_enable_ulp_lpt_lp(9), e1000_disable_ulp_lpt_lp(9), e1000_check_for_copper_link_ich8lan(9), e1000_acquire_nvm_ich8lan(9), e1000_release_nvm_ich8lan(9), e1000_acquire_swflag_ich8lan(9), e1000_release_swflag_ich8lan(9), e1000_check_mng_mode_ich8lan(9), e1000_check_mng_mode_pchlan(9), e1000_rar_set_pch2lan(9), e1000_rar_get_count_pch_lpt(9), e1000_rar_set_pch_lpt(9), e1000_check_reset_block_ich8lan(9), e1000_write_smbus_addr(9), e1000_sw_lcd_config_ich8lan(9), e1000_k1_gig_workaround_hv(9), e1000_configure_k1_ich8lan(9), e1000_oem_bits_config_ich8lan(9), e1000_set_mdio_slow_mode_hv(9), e1000_hv_phy_workarounds_ich8lan(9), e1000_copy_rx_addrs_to_phy_ich8lan(9), e1000_lv_jumbo_workaround_ich8lan(9), e1000_lv_phy_workarounds_ich8lan(9), e1000_k1_workaround_lv(9), e1000_gate_hw_phy_config_ich8lan(9), e1000_lan_init_done_ich8lan(9), e1000_post_phy_reset_ich8lan(9), e1000_phy_hw_reset_ich8lan(9), e1000_set_lplu_state_pchlan(9), e1000_set_d0_lplu_state_ich8lan(9), e1000_set_d3_lplu_state_ich8lan(9), e1000_valid_nvm_bank_detect_ich8lan(9), e1000_read_nvm_spt(9), e1000_read_nvm_ich8lan(9), e1000_flash_cycle_init_ich8lan(9), e1000_flash_cycle_ich8lan(9), e1000_read_flash_dword_ich8lan(9), e1000_read_flash_word_ich8lan(9), e1000_read_flash_byte_ich8lan(9), e1000_read_flash_data_ich8lan(9), e1000_read_flash_data32_ich8lan(9), e1000_write_nvm_ich8lan(9), e1000_update_nvm_checksum_spt(9), e1000_update_nvm_checksum_ich8lan(9), e1000_validate_nvm_checksum_ich8lan(9), e1000e_write_protect_nvm_ich8lan(9), e1000_write_flash_data_ich8lan(9), e1000_write_flash_data32_ich8lan(9), e1000_write_flash_byte_ich8lan(9), e1000_retry_write_flash_dword_ich8lan(9), e1000_retry_write_flash_byte_ich8lan(9), e1000_erase_flash_bank_ich8lan(9), e1000_valid_led_default_ich8lan(9), e1000_id_led_init_pchlan(9), e1000_get_bus_info_ich8lan(9), e1000_reset_hw_ich8lan(9), e1000_init_hw_ich8lan(9), e1000_initialize_hw_bits_ich8lan(9), e1000_setup_link_ich8lan(9), e1000_setup_copper_link_ich8lan(9), e1000_setup_copper_link_pch_lpt(9), e1000_get_link_up_info_ich8lan(9), e1000e_set_kmrn_lock_loss_workaround_ich8lan(9), e1000e_igp3_phy_powerdown_workaround_ich8lan(9), e1000e_gig_downshift_workaround_ich8lan(9), e1000_suspend_workarounds_ich8lan(9), e1000_resume_workarounds_pchlan(9), e1000_cleanup_led_ich8lan(9), e1000_led_on_ich8lan(9), e1000_led_off_ich8lan(9), e1000_setup_led_pchlan(9), e1000_cleanup_led_pchlan(9), e1000_led_on_pchlan(9), e1000_led_off_pchlan(9), e1000_get_cfg_done_ich8lan(9), e1000_power_down_phy_copper_ich8lan(9), e1000_clear_hw_cntrs_ich8lan(9)

like, that's the whole group chat and every single one of them got an invite 💌

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and that's the page, bestie 🎀💖 — brought to you by ./drivers/net/ethernet/intel/e..., dated October 2026, and yes the title line was also e1000_kmrn_...ound_ich8lan(9) the whole time. slay, go read some kernel source, i'm obsessed with you 🦋⭐