igc_config_fc_after_link_up(9)

✨ NAME ✨

okay so bestie, welcome to the Kernel API Manual entry for igc_config_fc_after_link_up(9) — it Configures flow control after link, and that’s the whole vibe of this page 💅✨

🌸 SYNOPSIS 🌸

s32 igc_config_fc_after_link_up (struct igc_hw *hw );

🎀 ARGUMENTS 🎀

• hw — pointer to the HW structure 🫶

💅 DESCRIPTION 💅

So here’s the tea: this checks the status of auto-negotiation after link up to make sure the speed and duplex were not forced. No cap, that’s the whole point of the check ✨

If the link needed to be forced, then flow control needs to be forced also — periodt. And if auto-negotiation is enabled, then we configure flow control based on our link partner 🌸

🦋 SEE ALSO 🦋

Kernel file ./drivers/net/ethernet/intel/igc/igc_mac.c 👑

• igc_disable_pcie_master(9)
• igc_init_rx_addrs(9)
• igc_set_fc_watermarks(9)
• igc_setup_link(9)
• igc_force_mac_fc(9)
• igc_clear_hw_cntrs_base(9)
• igc_rar_set(9)
• igc_check_for_copper_link(9)
• igc_config_collision_dist(9)
• igc_get_auto_rd_done(9)
• igc_get_speed_and_duplex_copper(9)
• igc_put_hw_semaphore(9)
• igc_enable_mng_pass_thru(9)
• igc_hash_mc_addr(9)
• igc_update_mc_addr_list(9)

xoxo, source/version ./drivers/net/ethernet/intel/igc, dated October 2026, page igc_config_fc_after_link_up(9) — slay and read the source 💖🎀