igc_phy_setup_autoneg(9)

💖 igc_phy_setup_autoneg — Kernel API Manual ✨

okay so bestie, welcome to the igc_phy_setup_autoneg(9) page 💅 this one lives in the Kernel API Manual and honestly? it's a little glow-up ritual for your PHY. let's get into it.

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🌸 NAME 🌸

igc_phy_setup_autoneg — literally just Configure PHY for auto-negotiation 🎀

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✨ SYNOPSIS ✨

s32 igc_phy_setup_autoneg (struct igc_hw *hw );

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🦋 ARGUMENTS 🦋

• hw — pointer to the HW structure 🫶 that's it, that's the whole input, she's low-maintenance.

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💜 DESCRIPTION 💜

okay so here's the vibe 🌈 this function Reads the MII auto-neg advertisement register and/or the 1000T control register — yes, and/or, she's flexible like that 💅

then it does a little vibe check: if the PHY is already setup for auto-negotiation? iconic, she returns successful and moves on with her day ✨ no notes, no extra work, main character energy.

otherwise 😭 she gets to work and sets up advertisement and flow control to the appropriate values for the wanted auto-negotiation. like, she's dressing the PHY for the occasion 🎀 fr fr.

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👑 SEE ALSO 👑

the whole friend group 💖 y'all should go read these too:

• Kernel file ./drivers/net/ethernet/intel/igc/igc_phy.c
• igc_check_reset_block(9)
• igc_get_phy_id(9)
• igc_phy_has_link(9)
• igc_power_up_phy_copper(9)
• igc_power_down_phy_copper(9)
• igc_check_downshift(9)
• igc_phy_hw_reset(9)
• igc_wait_autoneg(9)
• igc_copper_link_autoneg(9)
• igc_setup_copper_link(9)
• igc_read_phy_reg_mdic(9)
• igc_write_phy_reg_mdic(9)
• __igc_access_xmdio_reg(9)
• igc_read_xmdio_reg(9)
• igc_write_xmdio_reg(9)
• igc_write_phy_reg_gpy(9)
• igc_read_phy_reg_gpy(9)
• igc_read_phy_fw_version(9)
• igc_force_speed_duplex(9)

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💀 reminder bestie: this page is from ./drivers/net/ethernet/intel/igc and it's dated October 2026 — that's the source and the version, don't come for me, i'm just the messenger 🧚

and that's the page!! slay, go configure some PHYs, ily, bye 🍓💖