ixgbe_get_eeprom_semaphore(9)
π ixgbe_get_eeprom_semaphore β get that hardware semaphore, bestie π
okay so this one lives in the Kernel API Manual, and it's genuinely giving "tiny function, huge responsibility" energy. buckle up π
β¨ NAME β¨
ixgbe_get_eeprom_semaphore β grab the hardware semaphore so nobody else touches the EEPROM mid-bit-bang. lowkey essential. π₯
πΈ SYNOPSIS πΈ
int ixgbe_get_eeprom_semaphore (struct ixgbe_hw *hw );
like, that's it. one argument. one int coming back at you. slay. π
π¦ ARGUMENTS π¦
hwβ pointer to the hardware structure. that's your whole vibe right there, thestruct ixgbe_hw *holding all the hardware deets. π«Ά
β DESCRIPTION β
so what does it do? it sets the hardware semaphores so that EEPROM access can actually happen when you're doing it the bit-bang method. no cap, that's the whole thing.
think of it as: you're about to bit-bang your way into the EEPROM, and this function is the one that calls dibs first so nothing else on the hardware side starts beefing with you. π§
reminder bestie: this is about setting the semaphore β the actual giving-it-back part is a whole other function (peep SEE ALSO, ixgbe_release_eeprom_semaphore(9) π).
π SEE ALSO π
the source file itself, iconic:
- Kernel file
./drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
and then the entire extended friend group β literally all of these:
ixgbe_device_supports_autoneg_fc(9)ixgbe_setup_fc_generic(9)ixgbe_start_hw_generic(9)ixgbe_start_hw_gen2(9)ixgbe_init_hw_generic(9)ixgbe_clear_hw_cntrs_generic(9)ixgbe_read_pba_string_generic(9)ixgbe_get_mac_addr_generic(9)ixgbe_get_bus_info_generic(9)ixgbe_set_lan_id_multi_port_pcie(9)ixgbe_stop_adapter_generic(9)ixgbe_init_led_link_act_generic(9)ixgbe_led_on_generic(9)ixgbe_led_off_generic(9)ixgbe_init_eeprom_params_generic(9)ixgbe_write_eeprom_buffer_bit_bang_generic(9)ixgbe_write_eeprom_buffer_bit_bang(9)ixgbe_write_eeprom_generic(9)ixgbe_read_eeprom_buffer_bit_bang_generic(9)ixgbe_read_eeprom_buffer_bit_bang(9)ixgbe_read_eeprom_bit_bang_generic(9)ixgbe_read_eerd_buffer_generic(9)ixgbe_detect_eeprom_page_size_generic(9)ixgbe_read_eerd_generic(9)ixgbe_write_eewr_buffer_generic(9)ixgbe_write_eewr_generic(9)ixgbe_poll_eerd_eewr_done(9)ixgbe_acquire_eeprom(9)ixgbe_release_eeprom_semaphore(9)ixgbe_ready_eeprom(9)ixgbe_standby_eeprom(9)ixgbe_shift_out_eeprom_bits(9)ixgbe_shift_in_eeprom_bits(9)ixgbe_raise_eeprom_clk(9)ixgbe_lower_eeprom_clk(9)ixgbe_release_eeprom(9)ixgbe_calc_eeprom_checksum_generic(9)ixgbe_validate_eeprom_checksum_generic(9)ixgbe_update_eeprom_checksum_generic(9)ixgbe_set_rar_generic(9)ixgbe_clear_rar_generic(9)ixgbe_init_rx_addrs_generic(9)ixgbe_mta_vector(9)ixgbe_set_mta(9)ixgbe_update_mc_addr_list_generic(9)ixgbe_enable_mc_generic(9)ixgbe_disable_mc_generic(9)ixgbe_fc_enable_generic(9)ixgbe_negotiate_fc(9)ixgbe_fc_autoneg_fiber(9)ixgbe_fc_autoneg_backplane(9)ixgbe_fc_autoneg_copper(9)ixgbe_fc_autoneg(9)ixgbe_pcie_timeout_poll(9)ixgbe_disable_pcie_primary(9)ixgbe_acquire_swfw_sync(9)ixgbe_release_swfw_sync(9)prot_autoc_read_generic(9)prot_autoc_write_generic(9)ixgbe_disable_rx_buff_generic(9)ixgbe_enable_rx_buff_generic(9)ixgbe_enable_rx_dma_generic(9)ixgbe_blink_led_start_generic(9)ixgbe_blink_led_stop_generic(9)ixgbe_get_san_mac_addr_offset(9)ixgbe_get_san_mac_addr_generic(9)ixgbe_get_pcie_msix_count_generic(9)ixgbe_clear_vmdq_generic(9)ixgbe_set_vmdq_generic(9)ixgbe_set_vmdq_san_mac_generic(9)ixgbe_init_uta_tables_generic(9)ixgbe_find_vlvf_slot(9)ixgbe_set_vfta_generic(9)ixgbe_clear_vfta_generic(9)ixgbe_need_crosstalk_fix(9)ixgbe_check_mac_link_generic(9)ixgbe_get_wwn_prefix_generic(9)ixgbe_set_mac_anti_spoofing(9)ixgbe_set_vlan_anti_spoofing(9)ixgbe_get_device_caps_generic(9)ixgbe_set_rxpba_generic(9)ixgbe_calculate_checksum(9)ixgbe_hic_unlocked(9)ixgbe_host_interface_command(9)ixgbe_set_fw_drv_ver_generic(9)ixgbe_clear_tx_pending(9)ixgbe_get_ets_data(9)ixgbe_get_thermal_sensor_data_generic(9)ixgbe_init_thermal_sensor_thresh_generic(9)ixgbe_get_orom_version(9)ixgbe_get_oem_prod_version(9)ixgbe_get_etk_id(9)ixgbe_setup_mac_link_multispeed_fiber(9)ixgbe_set_soft_rate_select_speed(9)
like okay, that's the whole friend group, they're all going to the same party π
mwah, that's the page π this came out of the Kernel API Manual, source situated at ./drivers/net/ethernet/intel/ixgbe/ixgbe_common.c (the footer tries to squeeze it in as ./drivers/net/ethernet/intel/i... because, you know, terminal width π), and it's dated October 2026. go get that semaphore bestie, you got this π«Άβ¨
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms