e1000_setup_copper_link(9)

💅 NAME ✨

e1000_setup_copper_link — honestly the whole phy/speed/duplex setting situation, all in one function 🎀

So this page? It lives in the Kernel API Manual (section 9, kernel-functions, iykyk), and it's basically the group chat where your network card figures out how fast it's allowed to go 🔥

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🦋 SYNOPSIS

s32 e1000_setup_copper_link (struct e1000_hw *hw );

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🌸 ARGUMENTS

• hw — the struct holding all the variables that shared code pokes at 🫶 not me explaining pointers again, it's giving "everything you need is in here" energy.

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💖 DESCRIPTION

Okay so real talk: this function detects which PHY is present and then sets up the speed and duplex. That's it, that's the vibe ✨

No cap — detect the PHY, sort out the speed, sort out the duplex. Iconic, lowkey does exactly what it says on the label 👑

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🎀 SEE ALSO

Bestie, buckle up, because the cross-references here are long. Like, my-whole-fyp-long. Every single one is your friend though, promise 💜

• The kernel file itself: ./drivers/net/ethernet/intel/e1000/e1000_hw.c 🦋

🌈 phy / mac / media setup crew

• e1000_set_phy_type(9), e1000_phy_init_script(9), e1000_set_mac_type(9), e1000_set_media_type(9), e1000_reset_hw(9), e1000_init_hw(9), e1000_adjust_serdes_amplitude(9), e1000_setup_link(9), e1000_setup_fiber_serdes_link(9)

🧚 the copper link pipeline (the main character energy)

• e1000_copper_link_rtl_setup(9), e1000_copper_link_preconfig(9), e1000_copper_link_igp_setup(9), e1000_copper_link_mgp_setup(9), e1000_copper_link_autoneg(9), e1000_copper_link_postconfig(9), e1000_phy_setup_autoneg(9), e1000_phy_force_speed_duplex(9)

🍓 flow control + link-up besties

• e1000_config_collision_dist(9), e1000_config_mac_to_phy(9), e1000_force_mac_fc(9), e1000_config_fc_after_link_up(9), e1000_check_for_serdes_link_generic(9), e1000_check_for_link(9), e1000_get_speed_and_duplex(9), e1000_wait_autoneg(9)

💅 MDI bit-shifting girlies

• e1000_raise_mdi_clk(9), e1000_lower_mdi_clk(9), e1000_shift_out_mdi_bits(9), e1000_shift_in_mdi_bits(9)

⭐ PHY register access (touch grass, then read a register)

• e1000_read_phy_reg(9), e1000_write_phy_reg(9), e1000_phy_hw_reset(9), e1000_phy_reset(9), e1000_detect_gig_phy(9), e1000_phy_reset_dsp(9), e1000_phy_igp_get_info(9), e1000_phy_m88_get_info(9), e1000_phy_get_info(9)

🎀 EEPROM squad (clock goes up, clock goes down, we all shift bits)

• e1000_init_eeprom_params(9), e1000_raise_ee_clk(9), e1000_lower_ee_clk(9), e1000_shift_out_ee_bits(9), e1000_shift_in_ee_bits(9), e1000_acquire_eeprom(9), e1000_standby_eeprom(9), e1000_release_eeprom(9), e1000_spi_eeprom_ready(9), e1000_read_eeprom(9), e1000_validate_eeprom_checksum(9), e1000_update_eeprom_checksum(9), e1000_write_eeprom(9), e1000_write_eeprom_spi(9), e1000_write_eeprom_microwire(9)

👑 MAC address + filter tables (put some respect on the addressing)

• e1000_read_mac_addr(9), e1000_init_rx_addrs(9), e1000_hash_mc_addr(9), e1000_rar_set(9), e1000_write_vfta(9), e1000_clear_vfta(9)

🔥 LEDs, counters, adaptive + bus stuff

• e1000_setup_led(9), e1000_cleanup_led(9), e1000_led_on(9), e1000_led_off(9), e1000_clear_hw_cntrs(9), e1000_reset_adaptive(9), e1000_update_adaptive(9), e1000_get_bus_info(9), e1000_write_reg_io(9)

🦋 cable / DSP / phy-mode glow-up corner

• e1000_get_cable_length(9), e1000_check_polarity(9), e1000_check_downshift(9), e1000_config_dsp_after_link_change(9), e1000_set_phy_mode(9), e1000_set_d3_lplu_state(9), e1000_set_vco_speed(9)

🌸 MNG + config-done finishers

• e1000_enable_mng_pass_thru(9), e1000_get_auto_rd_done(9), e1000_get_phy_cfg_done(9)

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💀 Friendly reminder from your girl: this page is from the source path ./drivers/net/ethernet/intel/e... and it's dated October 2026 — so if you're reading this from the future, hiii 🫶

Okay that's the whole page, mwah, go configure your copper link bestie 💖🎀✨