igb_set_fc_watermarks(9)

💖 igb_set_fc_watermarks(9) — Kernel API Manual 💖

okay so bestie, welcome to the little kernel-API corner where we set flow control watermarks and then go about our day. This is the page for igb_set_fc_watermarks(9), and it lives in the Kernel API Manual vibe. 🫶

✨ NAME ✨

igb_set_fc_watermarks — Set flow control high/low watermarks

🌸 SYNOPSIS 🌸

void igb_set_fc_watermarks (struct e1000_hw *hw );

🎀 ARGUMENTS 🎀

• hw — pointer to the HW structure. That’s the whole argument list, bestie. 💅

🦋 DESCRIPTION 🦋

This function sets the flow control high/low threshold (watermark) registers. It’s giving “configure the watermarks, no cap.” ✨

If flow control XON frame transmission is enabled, then it also sets XON frame tansmission as well. (Yes, the original page says tansmission — we’re preserving the typo because lore is lore. 😭)

🔥 SEE ALSO 🔥

Kernel file: ./drivers/net/ethernet/intel/igb/e1000_mac.c

Also lowkey go check out these icons:

• igb_get_bus_info_pcie(9)
• igb_clear_vfta(9)
• igb_write_vfta(9)
• igb_init_rx_addrs(9)
• igb_find_vlvf_slot(9)
• igb_vfta_set(9)
• igb_check_alt_mac_addr(9)
• igb_rar_set(9)
• igb_mta_set(9)
• igb_hash_mc_addr(9)
• igb_i21x_hw_doublecheck(9)
• igb_update_mc_addr_list(9)
• igb_clear_hw_cntrs_base(9)
• igb_check_for_copper_link(9)
• igb_setup_link(9)
• igb_config_collision_dist(9)
• igb_set_default_fc(9)
• igb_force_mac_fc(9)
• igb_config_fc_after_link_up(9)
• igb_get_speed_and_duplex_copper(9)
• igb_get_hw_semaphore(9)
• igb_put_hw_semaphore(9)
• igb_get_auto_rd_done(9)
• igb_valid_led_default(9)
• igb_id_led_init(9)
• igb_cleanup_led(9)
• igb_blink_led(9)
• igb_led_off(9)
• igb_disable_pcie_master(9)
• igb_validate_mdi_setting(9)
• igb_write_8bit_ctrl_reg(9)
• igb_enable_mng_pass_thru(9)

Later bestie 💅 — source/version: ./drivers/net/ethernet/intel/igb · Kernel API Manual · date: October 2026 · page: igb_set_fc_watermarks(9) 🎀