init_link_config(9)

💅 NAME

init_link_config — bestie, this is the one that sets up a link's SW state ✨ (yes, the software-side bookkeeping, not the vibes)

Quick note before we start: this page lives in the Kernel API Manual (section 9), so like… kernel-API-core, not "type it in your shell" energy 🫶

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🌸 SYNOPSIS

void init_link_config (struct link_config *lc , fw_port_cap32_t pcaps ,
fw_port_cap32_t acaps );

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🎀 ARGUMENTS

• lc — pointer to the structure that's holding the link state 👑 this is the main character of the whole function
• pcaps — link Port Capabilities ✨ (the potential, the could-be)
• acaps — link current Advertised Port Capabilities 🌈 (the literally right now, what's actually being advertised)

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🦋 DESCRIPTION

Okay so what this does 🫶 — it initializes the SW state that's maintained for each link. That means it sets up the link's capabilities plus the default speed / flow-control / autonegotiation settings. All the starting-lineup defaults, basically. Periodt 💅

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🔥 SEE ALSO

Ngl this is the whole group chat 😭 — everyone's invited, no one's left out:

• t4_wait_op_done_val(9)
• t4_set_reg_field(9)
• t4_read_indirect(9)
• t4_write_indirect(9)
• t4_record_mbox(9)
• t4_wr_mbox_meat_timeout(9)
• t4_memory_rw_init(9)
• t4_memory_update_win(9)
• t4_memory_rw_residual(9)
• t4_memory_rw(9)
• t4_get_regs_len(9)
• t4_get_regs(9)
• t4_eeprom_ptov(9)
• t4_seeprom_wp(9)
• t4_get_raw_vpd_params(9)
• t4_get_vpd_params(9)
• t4_get_pfres(9)
• sf1_read(9)
• sf1_write(9)
• flash_wait_op(9)
• t4_read_flash(9)
• t4_write_flash(9)
• t4_get_fw_version(9)
• t4_get_bs_version(9)
• t4_get_tp_version(9)
• t4_get_exprom_version(9)
• t4_get_vpd_version(9)
• t4_get_scfg_version(9)
• t4_get_version_info(9)
• t4_dump_version_info(9)
• t4_check_fw_version(9)
• t4_flash_erase_sectors(9)
• t4_flash_cfg_addr(9)
• t4_load_fw(9)
• t4_phy_fw_ver(9)
• t4_load_phy_fw(9)
• t4_fwcache(9)
• fwcaps16_to_caps32(9)
• fwcaps32_to_caps16(9)
• t4_link_acaps(9)
• t4_link_l1cfg_core(9)
• t4_restart_aneg(9)
• t4_handle_intr_status(9)
• t4_slow_intr_handler(9)
• t4_intr_enable(9)
• t4_intr_disable(9)
• t4_config_rss_range(9)
• t4_config_glbl_rss(9)
• t4_config_vi_rss(9)
• t4_read_rss(9)
• t4_tp_fw_ldst_rw(9)
• t4_tp_indirect_rw(9)
• t4_tp_pio_read(9)
• t4_tp_pio_write(9)
• t4_tp_tm_pio_read(9)
• t4_tp_mib_read(9)
• t4_read_rss_key(9)
• t4_write_rss_key(9)
• t4_read_rss_pf_config(9)
• t4_read_rss_vf_config(9)
• t4_read_rss_pf_map(9)
• t4_read_rss_pf_mask(9)
• t4_tp_get_tcp_stats(9)
• t4_tp_get_err_stats(9)
• t4_tp_get_cpl_stats(9)
• t4_tp_get_rdma_stats(9)
• t4_get_fcoe_stats(9)
• t4_get_usm_stats(9)
• t4_read_mtu_tbl(9)
• t4_read_cong_tbl(9)
• t4_tp_wr_bits_indirect(9)
• init_cong_ctrl(9)
• t4_load_mtus(9)
• t4_get_chan_txrate(9)
• t4_set_trace_filter(9)
• t4_get_trace_filter(9)
• t4_pmtx_get_stats(9)
• t4_pmrx_get_stats(9)
• compute_mps_bg_map(9)
• t4_get_mps_bg_map(9)
• t4_get_tp_e2c_map(9)
• t4_get_tp_ch_map(9)
• t4_get_port_type_description(9)
• t4_get_port_stats_offset(9)
• t4_get_port_stats(9)
• t4_get_lb_stats(9)
• t4_mdio_rd(9)
• t4_mdio_wr(9)
• t4_sge_decode_idma_state(9)
• t4_sge_ctxt_flush(9)
• t4_read_sge_dbqtimers(9)
• t4_fw_hello(9)
• t4_fw_bye(9)
• t4_early_init(9)
• t4_fw_reset(9)
• t4_fw_halt(9)
• t4_fw_restart(9)
• t4_fw_upgrade(9)
• t4_fl_pkt_align(9)
• t4_fixup_host_params(9)
• t4_fw_initialize(9)
• t4_query_params_rw(9)
• t4_set_params_timeout(9)
• t4_set_params(9)
• t4_cfg_pfvf(9)
• t4_alloc_vi(9)
• t4_free_vi(9)
• t4_set_rxmode(9)
• t4_free_encap_mac_filt(9)
• t4_free_raw_mac_filt(9)
• t4_alloc_encap_mac_filt(9)
• t4_alloc_raw_mac_filt(9)
• t4_alloc_mac_filt(9)
• t4_free_mac_filt(9)
• t4_change_mac(9)
• t4_set_addr_hash(9)
• t4_enable_vi_params(9)
• t4_enable_vi(9)
• t4_enable_pi_params(9)
• t4_identify_port(9)
• t4_iq_stop(9)
• t4_iq_free(9)
• t4_eth_eq_free(9)
• t4_ctrl_eq_free(9)
• t4_ofld_eq_free(9)
• t4_link_down_rc_str(9)
• fwcap_to_fwspeed(9)
• lstatus_to_fwcap(9)
• t4_handle_get_port_info(9)
• t4_update_port_info(9)
• t4_get_link_params(9)
• t4_handle_fw_rpl(9)
• t4_prep_adapter(9)
• t4_shutdown_adapter(9)
• t4_bar2_sge_qregs(9)
• t4_init_devlog_params(9)
• t4_init_sge_params(9)
• t4_init_tp_params(9)
• t4_filter_field_shift(9)
• t4_init_portinfo(9)
• t4_read_cimq_cfg(9)
• t4_read_cim_ibq(9)
• t4_read_cim_obq(9)
• t4_cim_read(9)
• t4_cim_write(9)
• t4_cim_read_la(9)
• t4_tp_read_la(9)
• t4_idma_monitor_init(9)
• t4_idma_monitor(9)
• t4_load_cfg(9)
• t4_set_vf_mac_acl(9)
• t4_read_pace_tbl(9)
• t4_get_tx_sched(9)
• t4_sge_ctxt_rd_bd(9)
• t4_i2c_rd(9)
• t4_set_vlan_acl(9)
• modify_device_id(9)
• t4_load_boot(9)
• t4_flash_bootcfg_addr(9)

Oh and before I forget — the kernel file for all this is ./drivers/net/ethernet/chelsio/cxgb4/t4_hw.c 📂 that's the address, iykyk.

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Okay that's the whole page bestie, go forth and initialize some link state 💖

Sign-off time 🎀 this icon was brought to you by the source/version line ./drivers/net/ethernet/chelsio... and it's dated October 2026 — yes, future vibes only, no cap 💅✨