lpfc_offline_prep(9)

okay so bestie, this is lpfc_offline_prep(9) from the Kernel API Manual 💖, and it's literally the "get the HBA ready to go offline" era. No cap.

🎀 NAME 🎀

lpfc_offline_prep — Prepare a HBA to be brought offline. 💅

✨ SYNOPSIS ✨

void lpfc_offline_prep (struct lpfc_hba *phba , int mbx_action );

🦋 ARGUMENTS 🦋

• phba — pointer to lpfc hba data structure. It's giving "where the HBA lives" ✨
• mbx_action — flag for mailbox shutdown action. The mailbox is about to get its moment 💌

🌸 DESCRIPTION 🌸

This routine is invoked to prepare a HBA to be brought offline. Periodt. It performs unregistration login to all the nodes on all vports and flushes the mailbox queue to make it ready to be brought offline. So yeah: it's doing the whole "log out, flush the mailbox, get ready" combo, and honestly? iconic. 🫶

this is the prep era, not the full offline finale — the routine gets the HBA ready, fr fr.

🔗 SEE ALSO 🔗

okay bestie, the cross-refs here are a whole friend group 😭. Kernel file ./drivers/scsi/lpfc/lpfc_init.c plus all of these, exactly as listed:

Kernel file ./drivers/scsi/lpfc/lpfc_init.c lpfc_config_port_prep(9),
lpfc_config_async_cmpl(9), lpfc_dump_wakeup_param_cmpl(9),
lpfc_update_vport_wwn(9), lpfc_config_port_post(9),
lpfc_sli4_refresh_params(9), lpfc_hba_init_link(9),
lpfc_hba_init_link_fc_topology(9), lpfc_hba_down_link(9),
lpfc_hba_down_prep(9), lpfc_sli4_free_sp_events(9),
lpfc_hba_free_post_buf(9), lpfc_hba_clean_txcmplq(9),
lpfc_hba_down_post_s3(9), lpfc_hba_down_post_s4(9),
lpfc_hba_down_post(9), lpfc_hb_timeout(9), lpfc_rrq_timeout(9),
lpfc_hb_mbox_cmpl(9), lpfc_hb_mxp_handler(9), lpfc_issue_hb_mbox(9),
lpfc_issue_hb_tmo(9), lpfc_hb_timeout_handler(9), lpfc_offline_eratt(9),
lpfc_sli4_offline_eratt(9), lpfc_handle_deferred_eratt(9),
lpfc_handle_eratt_s3(9), lpfc_sli4_port_sta_fn_reset(9),
lpfc_handle_eratt_s4(9), lpfc_handle_eratt(9), lpfc_handle_latt(9),
lpfc_parse_vpd(9), lpfc_get_atto_model_desc(9),
lpfc_get_hba_model_desc(9), lpfc_sli3_post_buffer(9),
lpfc_post_rcv_buf(9), lpfc_sha_init(9), lpfc_sha_iterate(9),
lpfc_challenge_key(9), lpfc_hba_init(9), lpfc_cleanup(9),
lpfc_stop_vport_timers(9), __lpfc_sli4_stop_fcf_redisc_wait_timer(9),
lpfc_sli4_stop_fcf_redisc_wait_timer(9), lpfc_cmf_stop(9),
lpfc_cmf_start(9), lpfc_stop_hba_timers(9), lpfc_block_mgmt_io(9),
lpfc_sli4_node_rpi_restore(9), lpfc_create_expedite_pool(9),
lpfc_destroy_expedite_pool(9), lpfc_create_multixri_pools(9),
lpfc_destroy_multixri_pools(9), lpfc_online(9), lpfc_unblock_mgmt_io(9),
lpfc_offline(9), lpfc_scsi_free(9), lpfc_io_free(9),
lpfc_sli4_els_sgl_update(9), lpfc_sli4_nvmet_sgl_update(9),
lpfc_sli4_io_sgl_update(9), lpfc_new_io_buf(9), lpfc_vmid_res_alloc(9),
lpfc_create_port(9), destroy_port(9), lpfc_get_instance(9),
lpfc_scan_finished(9), lpfc_host_attrib_init(9), lpfc_stop_port_s3(9),
lpfc_stop_port_s4(9), lpfc_stop_port(9),
lpfc_fcf_redisc_wait_start_timer(9), lpfc_sli4_fcf_redisc_wait_tmo(9),
lpfc_vmid_poll(9), lpfc_sli4_parse_latt_fault(9),
lpfc_sli4_parse_latt_type(9), lpfc_sli_port_speed_get(9),
lpfc_sli4_port_speed_parse(9), lpfc_sli4_async_link_evt(9),
lpfc_async_link_speed_to_read_top(9), lpfc_cgn_update_stat(9),
lpfc_cgn_update_tstamp(9), lpfc_cmf_stats_timer(9),
lpfc_calc_cmf_latency(9), lpfc_cmf_timer(9), lpfc_sli4_async_fc_evt(9),
lpfc_sli4_async_sli_evt(9), lpfc_sli4_perform_vport_cvl(9),
lpfc_sli4_perform_all_vport_cvl(9), lpfc_sli4_async_fip_evt(9),
lpfc_sli4_async_dcbx_evt(9), lpfc_sli4_async_grp5_evt(9),
lpfc_sli4_async_cmstat_evt(9), lpfc_cgn_params_val(9),
lpfc_cgn_params_parse(9), lpfc_sli4_cgn_params_read(9),
lpfc_sli4_cgn_parm_chg_evt(9), lpfc_sli4_async_event_proc(9),
lpfc_sli4_fcf_redisc_event_proc(9), lpfc_api_table_setup(9),
lpfc_log_intr_mode(9), lpfc_enable_pci_dev(9), lpfc_disable_pci_dev(9),
lpfc_reset_hba(9), lpfc_sli_sriov_nr_virtfn_get(9),
lpfc_sli_probe_sriov_nr_virtfn(9), lpfc_setup_driver_resource_phase1(9),
lpfc_sli_driver_resource_setup(9), lpfc_sli_driver_resource_unset(9),
lpfc_sli4_driver_resource_setup(9), lpfc_sli4_driver_resource_unset(9),
lpfc_init_api_table_setup(9), lpfc_setup_driver_resource_phase2(9),
lpfc_unset_driver_resource_phase2(9), lpfc_free_iocb_list(9),
lpfc_init_iocb_list(9), lpfc_free_sgl_list(9),
lpfc_free_els_sgl_list(9), lpfc_free_nvmet_sgl_list(9),
lpfc_init_active_sgl_array(9), lpfc_free_active_sgl(9),
lpfc_init_sgl_list(9), lpfc_sli4_init_rpi_hdrs(9),
lpfc_sli4_create_rpi_hdr(9), lpfc_sli4_remove_rpi_hdrs(9),
lpfc_hba_alloc(9), lpfc_hba_free(9), lpfc_setup_fdmi_mask(9),
lpfc_create_shost(9), lpfc_destroy_shost(9), lpfc_setup_bg(9),
lpfc_post_init_setup(9), lpfc_sli_pci_mem_setup(9),
lpfc_sli_pci_mem_unset(9), lpfc_sli4_post_status_check(9),
lpfc_sli4_bar0_register_memmap(9), lpfc_sli4_bar1_register_memmap(9),
lpfc_sli4_bar2_register_memmap(9), lpfc_create_bootstrap_mbox(9),
lpfc_destroy_bootstrap_mbox(9), lpfc_map_topology(9),
lpfc_sli4_read_config(9), lpfc_setup_endian_order(9),
lpfc_sli4_queue_verify(9), lpfc_sli4_queue_create(9),
lpfc_sli4_queue_destroy(9), lpfc_setup_cq_lookup(9),
lpfc_sli4_queue_setup(9), lpfc_sli4_queue_unset(9),
lpfc_sli4_cq_event_pool_create(9), lpfc_sli4_cq_event_pool_destroy(9),
__lpfc_sli4_cq_event_alloc(9), lpfc_sli4_cq_event_alloc(9),
__lpfc_sli4_cq_event_release(9), lpfc_sli4_cq_event_release(9),
lpfc_sli4_cq_event_release_all(9), lpfc_pci_function_reset(9),
lpfc_sli4_pci_mem_setup(9), lpfc_sli4_pci_mem_unset(9),
lpfc_sli_enable_msix(9), lpfc_sli_enable_msi(9),
lpfc_sli_enable_intr(9), lpfc_sli_disable_intr(9),
lpfc_find_cpu_handle(9), lpfc_find_hyper(9), lpfc_cpu_map_array_init(9),
lpfc_hba_eq_hdl_array_init(9), lpfc_cpu_affinity_check(9),
lpfc_cpuhp_get_eq(9), lpfc_irq_set_aff(9), lpfc_irq_clear_aff(9),
lpfc_irq_rebalance(9), lpfc_sli4_enable_msix(9),
lpfc_sli4_enable_msi(9), lpfc_sli4_enable_intr(9),
lpfc_sli4_disable_intr(9), lpfc_unset_hba(9),
lpfc_sli4_xri_exchange_busy_wait(9), lpfc_sli4_hba_unset(9),
__lpfc_reg_congestion_buf(9), lpfc_get_sli4_parameters(9),
lpfc_pci_probe_one_s3(9), lpfc_pci_remove_one_s3(9),
lpfc_pci_suspend_one_s3(9), lpfc_pci_resume_one_s3(9),
lpfc_sli_prep_dev_for_recover(9), lpfc_sli_prep_dev_for_reset(9),
lpfc_sli_prep_dev_for_perm_failure(9), lpfc_io_error_detected_s3(9),
lpfc_io_slot_reset_s3(9), lpfc_io_resume_s3(9),
lpfc_sli4_get_els_iocb_cnt(9), lpfc_sli4_get_iocb_cnt(9),
lpfc_write_firmware(9), lpfc_sli4_request_firmware_update(9),
lpfc_pci_probe_one_s4(9), lpfc_pci_remove_one_s4(9),
lpfc_pci_suspend_one_s4(9), lpfc_pci_resume_one_s4(9),
lpfc_sli4_prep_dev_for_recover(9), lpfc_sli4_prep_dev_for_reset(9),
lpfc_sli4_prep_dev_for_perm_failure(9), lpfc_io_error_detected_s4(9),
lpfc_io_slot_reset_s4(9), lpfc_io_resume_s4(9), lpfc_pci_probe_one(9),
lpfc_pci_remove_one(9), lpfc_pci_suspend_one(9), lpfc_pci_resume_one(9),
lpfc_io_error_detected(9), lpfc_io_slot_reset(9), lpfc_io_resume(9),
lpfc_sli4_oas_verify(9), lpfc_sli4_ras_init(9), lpfc_init(9),
lpfc_exit(9)

sign-off time 🎀: source/version ./drivers/scsi/lpfc, dated October 2026, and the page is lpfc_offline_prep(9) forever. 💜