ixgbe_acquire_res(9)

💅 ixgbe_acquire_res(9) — like, the whole Kernel API Manual page, bestie

okay so welcome to the Kernel API Manual entry for ixgbe_acquire_res(9) ✨ grab a boba, this one's about politely asking for a resource and not being weird about it 🫶

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✨ NAME ✨

ixgbe_acquire_res — acquire the ownership of a resource 👑

like... it gets you the keys. that's the whole vibe 💅

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🌸 SYNOPSIS 🌸

int ixgbe_acquire_res (struct ixgbe_hw *hw , enum libie_aq_res_id res ,
enum libie_aq_res_access_type access , u32 timeout );

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🎀 ARGUMENTS 🎀

• hw — pointer to the HW structure 🖥️ the hardware baddie in question
• res — resource ID 🏷️ which resource you're trying to claim
• access — access type (read or write) 👀📝 so the function knows what kind of energy you're bringing
• timeout — timeout in milliseconds ⏱️ patience levels, measured precisely

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🦋 DESCRIPTION 🦋

So here's the tea ☕ — this function makes an attempt to acquire the ownership of a resource, and it does it using ixgbe_aci_req_res to utilize ACI. that's the mechanism, no cap.

now for the plot twist 😭 in case some other driver has previously acquired the resource and performed any necessary updates, the -EALREADY is returned. and that's actually good news-ish: the caller does not obtain the resource and has no further work to do. like, someone already did the thing, you can go home bestie 🏃‍♀️💨

and if needed? the function will poll until the current lock owner timeouts ⏳ it literally just sits there refreshing the group chat until the lock owner gives up. main character patience honestly.

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🔥 RETURN 🔥

the exit code of the operation 🎯 that's it, that's the return — go check it, don't ignore it, iykyk.

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💜 SEE ALSO 💜

first up, the kernel file where this lives, fr fr:

./drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c

and now the friend group 💖 the whole squad, all of them, zero skips:

ixgbe_should_retry_aci_send_cmd_execute(9),
ixgbe_aci_send_cmd_execute(9), ixgbe_aci_send_cmd(9),
ixgbe_aci_check_event_pending(9), ixgbe_aci_get_event(9),
ixgbe_fill_dflt_direct_cmd_desc(9), ixgbe_aci_get_fw_ver(9),
ixgbe_aci_req_res(9), ixgbe_aci_release_res(9), ixgbe_release_res(9),
ixgbe_parse_e610_caps(9), ixgbe_parse_valid_functions_cap(9),
ixgbe_parse_vf_dev_caps(9), ixgbe_parse_vsi_dev_caps(9),
ixgbe_parse_fdir_dev_caps(9), ixgbe_parse_dev_caps(9),
ixgbe_parse_vf_func_caps(9), ixgbe_get_num_per_func(9),
ixgbe_parse_vsi_func_caps(9), ixgbe_parse_func_caps(9),
ixgbe_aci_list_caps(9), ixgbe_discover_dev_caps(9),
ixgbe_discover_func_caps(9), ixgbe_get_caps(9),
ixgbe_aci_disable_rxen(9), ixgbe_aci_get_phy_caps(9),
ixgbe_copy_phy_caps_to_cfg(9), ixgbe_aci_set_phy_cfg(9),
ixgbe_aci_set_link_restart_an(9), ixgbe_is_media_cage_present(9),
ixgbe_get_media_type_from_phy_type(9), ixgbe_update_link_info(9),
ixgbe_get_link_status(9), ixgbe_aci_get_link_info(9),
ixgbe_aci_set_event_mask(9), ixgbe_configure_lse(9),
ixgbe_start_hw_e610(9), ixgbe_aci_set_port_id_led(9),
ixgbe_get_media_type_e610(9), ixgbe_setup_link_e610(9),
ixgbe_check_link_e610(9), ixgbe_get_link_capabilities_e610(9),
ixgbe_cfg_phy_fc(9), ixgbe_setup_fc_e610(9), ixgbe_fc_autoneg_e610(9),
ixgbe_disable_rx_e610(9), ixgbe_fw_recovery_mode_e610(9),
ixgbe_fw_rollback_mode_e610(9), ixgbe_init_phy_ops_e610(9),
ixgbe_identify_phy_e610(9), ixgbe_setup_eee_e610(9),
ixgbe_identify_module_e610(9), ixgbe_setup_phy_link_e610(9),
ixgbe_set_phy_power_e610(9), ixgbe_enter_lplu_e610(9),
ixgbe_init_eeprom_params_e610(9), ixgbe_aci_get_netlist_node(9),
ixgbe_acquire_nvm(9), ixgbe_release_nvm(9), ixgbe_aci_read_nvm(9),
ixgbe_aci_erase_nvm(9), ixgbe_aci_update_nvm(9),
ixgbe_nvm_write_activate(9), ixgbe_nvm_validate_checksum(9),
ixgbe_discover_flash_size(9), ixgbe_read_sr_base_address(9),
ixgbe_read_sr_area_size(9), ixgbe_determine_active_flash_banks(9),
ixgbe_get_flash_bank_offset(9), ixgbe_read_flash_module(9),
ixgbe_read_nvm_module(9), ixgbe_read_netlist_module(9),
ixgbe_read_orom_module(9), ixgbe_get_nvm_css_hdr_len(9),
ixgbe_read_nvm_sr_copy(9), ixgbe_get_nvm_srev(9),
ixgbe_get_orom_civd_data(9), ixgbe_get_orom_srev(9),
ixgbe_get_orom_ver_info(9), ixgbe_get_inactive_orom_ver(9),
ixgbe_get_nvm_ver_info(9), ixgbe_get_inactive_nvm_ver(9),
ixgbe_get_active_nvm_ver(9), ixgbe_get_netlist_info(9),
ixgbe_get_inactive_netlist_ver(9), ixgbe_get_flash_data(9),
ixgbe_aci_nvm_update_empr(9), ixgbe_read_sr_word_aci(9),
ixgbe_read_flat_nvm(9), ixgbe_read_sr_buf_aci(9),
ixgbe_read_ee_aci_e610(9), ixgbe_read_ee_aci_buffer_e610(9),
ixgbe_validate_eeprom_checksum_e610(9), ixgbe_reset_hw_e610(9),
ixgbe_get_pfa_module_tlv(9), ixgbe_read_pba_string_e610(9)

that's a lot of mutuals, and they all ate 💅 periodt.

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and that's the page!! mwah 💋 this little writeup came from ./drivers/net/ethernet/intel/i... and it's dated October 2026 — so go forth, acquire that resource, and remember: if you get -EALREADY, congrats, your work here is done 🧚💜