ice_set_fc(9)

💅 ice_set_fc (9) — like, the kernel API manual, but make it make sense

okay so bestie, buckle up 🎀 this one is from the Kernel API Manual — section 9, the kernel developer pages — and we're talking about ice_set_fc(9). yes the name literally ends in a dangling dash, we'll get to that. no cap, it's a tiny page with a gigantic friend group. 🫶

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✨ NAME ✨

ice_set_fc —

okay so real talk: the original literally has nothing after the dash 😭 the description slot is just empty. not me leaving a blank in the group chat and hitting send anyway. so yeah, the name is ice_set_fc, and the one-liner is… a vibe. 💀 (The DESCRIPTION section down below does the actual explaining — keep reading, iykyk.)

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🌸 SYNOPSIS 🌸

int ice_set_fc (struct ice_port_info *pi , u8 *aq_failures , bool
ena_auto_link_update );

so it returns an int (as functions do 💅), takes three things, and you'd better believe we're going through all three. one at a time, babe.

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🦋 ARGUMENTS 🦋

• pi — your port information structure ✨ it's the port info struct, it's the whole point, it's giving main character energy.
• aq_failures — a pointer to a status code, and it's specific to the ice_set_fc routine 👑 so yes, this little status code is bespoke, custom-made, tailoring-level specific to this exact function. iconic.
• ena_auto_link_update — a bool that says whether to enable automatic link update ⭐ turn it on and link updates just… happen. automatically. as advertised. 🧚

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💜 DESCRIPTION 💜

Set the requested flow control mode. 🌈

that's it. that's the whole description. short, sweet, and honestly kind of slaying in its minimalism — the function does exactly what it says on the tin: you request a flow control mode, it sets it. periodt. 🔥

lowkey obsessed with how this page has a three-word description and then two hundred SEE ALSOs. the confidence. 💅

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🌟 SEE ALSO 🌟

first, the file it lives in:

Kernel file ./drivers/net/ethernet/intel/ice/ice_common.c

and now… the friend group 😭 the whole ice squad, every single one, no cuts, no skips, we're naming everybody 🫶:

ice_dump_phy_type(9), ice_set_mac_type(9), ice_is_generic_mac(9),
ice_clear_pf_cfg(9), ice_aq_manage_mac_read(9), ice_aq_get_phy_caps(9),
ice_aq_get_link_topo_handle(9), ice_aq_get_netlist_node(9),
ice_find_netlist_node(9), ice_is_media_cage_present(9),
ice_get_media_type(9), ice_get_link_status_datalen(9),
ice_aq_get_link_info(9), ice_fill_tx_timer_and_fc_thresh(9),
ice_aq_set_mac_cfg(9), ice_init_fltr_mgmt_struct(9),
ice_cleanup_fltr_mgmt_struct(9), ice_get_itr_intrl_gran(9),
ice_wait_fw_load(9), ice_init_hw(9), ice_deinit_hw(9),
ice_check_reset(9), ice_pf_reset(9), ice_reset(9),
ice_copy_rxq_ctx_to_hw(9), ice_copy_rxq_ctx_from_hw(9),
ice_pack_rxq_ctx(9), ice_unpack_rxq_ctx(9), ice_write_rxq_ctx(9),
ice_read_rxq_ctx(9), ice_pack_txq_ctx(9), ice_pack_txq_ctx_full(9),
ice_unpack_txq_ctx_full(9), ice_copy_txq_ctx_from_hw(9),
ice_copy_txq_ctx_to_hw(9), ice_read_txq_ctx(9), ice_write_txq_ctx(9),
ice_pack_txtime_ctx(9), ice_sbq_send_cmd(9), ice_sbq_rw_reg(9),
ice_should_retry_sq_send_cmd(9), ice_sq_send_cmd_retry(9),
ice_aq_send_cmd(9), ice_aq_get_fw_ver(9), ice_aq_send_driver_ver(9),
ice_aq_q_shutdown(9), ice_aq_req_res(9), ice_aq_release_res(9),
ice_acquire_res(9), ice_release_res(9), ice_aq_alloc_free_res(9),
ice_alloc_hw_res(9), ice_free_hw_res(9), ice_get_num_per_func(9),
ice_parse_common_caps(9), ice_recalc_port_limited_caps(9),
ice_parse_vf_func_caps(9), ice_parse_vsi_func_caps(9),
ice_parse_1588_func_caps(9), ice_parse_fdir_func_caps(9),
ice_parse_func_caps(9), ice_func_id_to_logical_id(9),
ice_parse_valid_functions_cap(9), ice_parse_vf_dev_caps(9),
ice_parse_vsi_dev_caps(9), ice_parse_1588_dev_caps(9),
ice_parse_fdir_dev_caps(9), ice_parse_sensor_reading_cap(9),
ice_parse_nac_topo_dev_caps(9), ice_parse_dev_caps(9),
ice_is_phy_rclk_in_netlist(9), ice_is_clock_mux_in_netlist(9),
ice_is_cgu_in_netlist(9), ice_is_gps_in_netlist(9), ice_aq_list_caps(9),
ice_discover_dev_caps(9), ice_discover_func_caps(9),
ice_set_safe_mode_caps(9), ice_get_caps(9), ice_aq_manage_mac_write(9),
ice_aq_clear_pxe_mode(9), ice_clear_pxe_mode(9),
ice_aq_set_port_params(9), ice_is_100m_speed_supported(9),
ice_get_link_speed_based_on_phy_type(9), ice_update_phy_type(9),
ice_aq_set_phy_cfg(9), ice_update_link_info(9),
ice_aq_get_phy_equalization(9), ice_aq_get_fec_stats(9),
ice_cache_phy_user_req(9), ice_caps_to_fc_mode(9),
ice_caps_to_fec_mode(9), ice_cfg_phy_fc(9), ice_phy_caps_equals_cfg(9),
ice_copy_phy_caps_to_cfg(9), ice_cfg_phy_fec(9), ice_get_link_status(9),
ice_aq_set_link_restart_an(9), ice_aq_set_event_mask(9),
ice_aq_set_mac_loopback(9), ice_aq_set_port_id_led(9),
ice_aq_get_port_options(9), ice_aq_set_port_option(9),
ice_get_phy_lane_number(9), ice_aq_sff_eeprom(9),
__ice_aq_get_set_rss_lut(9), ice_aq_get_rss_lut(9),
ice_aq_set_rss_lut(9), __ice_aq_get_set_rss_key(9),
ice_aq_get_rss_key(9), ice_aq_set_rss_key(9), ice_aq_add_lan_txq(9),
ice_aq_dis_lan_txq(9), ice_aq_cfg_lan_txq(9), ice_aq_add_rdma_qsets(9),
ice_aq_set_txtimeq(9), ice_get_lan_q_ctx(9), ice_ena_vsi_txq(9),
ice_dis_vsi_txq(9), ice_cfg_vsi_qs(9), ice_cfg_vsi_lan(9),
ice_cfg_vsi_rdma(9), ice_ena_vsi_rdma_qset(9), ice_dis_vsi_rdma_qset(9),
ice_aq_get_cgu_input_pin_measure(9), ice_aq_get_cgu_abilities(9),
ice_aq_set_input_pin_cfg(9), ice_aq_get_input_pin_cfg(9),
ice_aq_set_output_pin_cfg(9), ice_aq_get_output_pin_cfg(9),
ice_aq_get_cgu_dpll_status(9), ice_aq_set_cgu_dpll_config(9),
ice_aq_set_cgu_ref_prio(9), ice_aq_get_cgu_ref_prio(9),
ice_aq_get_cgu_info(9), ice_aq_set_phy_rec_clk_out(9),
ice_aq_get_phy_rec_clk_out(9), ice_aq_get_sensor_reading(9),
ice_replay_pre_init(9), ice_replay_vsi(9), ice_replay_post(9),
ice_stat_update40(9), ice_stat_update32(9), ice_sched_query_elem(9),
ice_aq_read_i2c(9), ice_aq_write_i2c(9), ice_get_pca9575_handle(9),
ice_read_pca9575_reg(9), ice_aq_set_gpio(9), ice_aq_get_gpio(9),
ice_is_fw_api_min_ver(9), ice_fw_supports_link_override(9),
ice_get_link_default_override(9), ice_is_phy_caps_an_enabled(9),
ice_is_fw_health_report_supported(9), ice_aq_set_health_status_cfg(9),
ice_aq_set_lldp_mib(9), ice_fw_supports_lldp_fltr_ctrl(9),
ice_lldp_fltr_add_remove(9), ice_lldp_execute_pending_mib(9),
ice_fw_supports_report_dflt_cfg(9), ice_get_link_speed(9),
ice_get_dest_cgu(9), ice_read_cgu_reg(9), ice_write_cgu_reg(9)

like… 200+ functions. that's not a SEE ALSO, that's a guest list 💀 and every one of them is at your fingertips if you just follow the (9). we love a well-connected queen. 👑

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🎀 the sign-off 🎀

this page is filed under ./drivers/net/ethernet/intel/ice and it's dated October 2026 — so like, future-era intel NIC lore 🦋 when you're reading ice_set_fc(9), that's the address on the envelope and that's the postmark, bestie. go set that flow control mode. slay. 💖✨