mpi3mr_devstatuschg_evt_th(9)

💅 mpi3mr_devstatuschg_evt_th(9) — Kernel API Manual energy

okay so bestie, we're in the Kernel API Manual today and this page is all about mpi3mr_devstatuschg_evt_th. yes that name is a mouthful, no i will not be shortening it, it's iconic in its own chaotic way 🎀

✨ NAME ✨

mpi3mr_devstatuschg_evt_th — DeviceStatusChange evt tophalf. literally exactly what it says on the tin, no notes 💅

✨ SYNOPSIS ✨

void mpi3mr_devstatuschg_evt_th (struct mpi3mr_ioc *mrioc , struct
mpi3_event_notification_reply *event_reply );

✨ ARGUMENTS ✨

• mrioc — your adapter instance reference, the whole vibe check of "which controller are we even talking about" 🦋
• event_reply — the event data itself, the actual tea being served 🍵

✨ DESCRIPTION ✨

so here's the deal: this function peeks at the reason code, and based on what it finds it does one of three things, no cap:

• block I/O to the device 🚫
• or unblock I/O to the device ✅
• or kick off the device removal handshake, with the reason being remove/hide acknowledgment, and it does that handshake with the firmware 🤝

that's the whole tophalf moment. it's giving "traffic controller but make it PCIe" and honestly? ate 🔥

✨ RETURN ✨

Nothing. nope, zero, void, empty-handed, it's literally giving nothing back and that's fine 💀

✨ SEE ALSO ✨

the kernel file lives at ./drivers/scsi/mpi3mr/mpi3mr_os.c if you wanna go read the source like the main character you are 👑

and here's the full friend group, because this page is not letting anyone get left out — every single one of these, in order, periodt:

mpi3mr_host_tag_for_scmd(9), mpi3mr_scmd_from_host_tag(9), mpi3mr_clear_scmd_priv(9), mpi3mr_fwevt_free(9), mpi3mr_fwevt_get(9), mpi3mr_fwevt_put(9), mpi3mr_alloc_fwevt(9), mpi3mr_fwevt_add_to_list(9), mpi3mr_hdb_trigger_data_event(9), mpi3mr_fwevt_del_from_list(9), mpi3mr_dequeue_fwevt(9), mpi3mr_cancel_work(9), mpi3mr_cleanup_fwevt_list(9), mpi3mr_queue_qd_reduction_event(9), mpi3mr_invalidate_devhandles(9), mpi3mr_print_scmd(9), mpi3mr_flush_scmd(9), mpi3mr_count_dev_pending(9), mpi3mr_count_tgt_pending(9), mpi3mr_flush_host_io(9), mpi3mr_flush_cmds_for_unrecovered_controller(9), mpi3mr_alloc_tgtdev(9), mpi3mr_tgtdev_add_to_list(9), mpi3mr_tgtdev_del_from_list(9), __mpi3mr_get_tgtdev_by_handle(9), mpi3mr_get_tgtdev_by_handle(9), __mpi3mr_get_tgtdev_by_perst_id(9), mpi3mr_get_tgtdev_by_perst_id(9), __mpi3mr_get_tgtdev_from_tgtpriv(9), mpi3mr_set_io_divert_for_all_vd_in_tg(9), mpi3mr_print_device_event_notice(9), mpi3mr_remove_tgtdev_from_host(9), mpi3mr_report_tgtdev_to_host(9), mpi3mr_change_queue_depth(9), mpi3mr_update_sdev(9), mpi3mr_refresh_tgtdevs(9), mpi3mr_debug_dump_devpg0(9), mpi3mr_update_tgtdev(9), mpi3mr_devstatuschg_evt_bh(9), mpi3mr_devinfochg_evt_bh(9), mpi3mr_free_enclosure_list(9), mpi3mr_enclosure_find_by_handle(9), mpi3mr_process_trigger_data_event_bh(9), mpi3mr_encldev_add_chg_evt_debug(9), mpi3mr_encldev_add_chg_evt_bh(9), mpi3mr_sastopochg_evt_debug(9), mpi3mr_sastopochg_evt_bh(9), mpi3mr_pcietopochg_evt_debug(9), mpi3mr_pcietopochg_evt_bh(9), mpi3mr_logdata_evt_bh(9), mpi3mr_update_sdev_qd(9), mpi3mr_set_qd_for_all_vd_in_tg(9), mpi3mr_fwevt_bh(9), mpi3mr_fwevt_worker(9), mpi3mr_create_tgtdev(9), mpi3mr_flush_delayed_cmd_lists(9), mpi3mr_dev_rmhs_complete_iou(9), mpi3mr_dev_rmhs_complete_tm(9), mpi3mr_dev_rmhs_send_tm(9), mpi3mr_complete_evt_ack(9), mpi3mr_send_event_ack(9), mpi3mr_pcietopochg_evt_th(9), mpi3mr_sastopochg_evt_th(9), mpi3mr_preparereset_evt_th(9), mpi3mr_energypackchg_evt_th(9), mpi3mr_cablemgmt_evt_th(9), mpi3mr_add_event_wait_for_device_refresh(9), mpi3mr_os_handle_events(9), mpi3mr_setup_eedp(9), mpi3mr_build_sense_buffer(9), mpi3mr_map_eedp_error(9), mpi3mr_process_op_reply_desc(9), mpi3mr_get_chain_idx(9), mpi3mr_prepare_sg_scmd(9), mpi3mr_build_sg_scmd(9), mpi3mr_tm_response_name(9), mpi3mr_issue_tm(9), mpi3mr_bios_param(9), mpi3mr_map_queues(9), mpi3mr_get_fw_pending_ios(9), mpi3mr_print_pending_host_io(9), mpi3mr_wait_for_host_io(9), mpi3mr_setup_divert_ws(9), mpi3mr_eh_host_reset(9), mpi3mr_eh_bus_reset(9), mpi3mr_eh_target_reset(9), mpi3mr_eh_dev_reset(9), mpi3mr_eh_abort(9), mpi3mr_scan_start(9), mpi3mr_scan_finished(9), mpi3mr_sdev_destroy(9), mpi3mr_target_destroy(9), mpi3mr_sdev_configure(9), mpi3mr_sdev_init(9), mpi3mr_target_alloc(9), mpi3mr_check_return_unmap(9), mpi3mr_allow_scmd_to_fw(9), mpi3mr_qcmd(9), mpi3mr_init_drv_cmd(9), osintfc_mrioc_security_status(9), mpi3mr_probe(9), mpi3mr_remove(9), mpi3mr_shutdown(9), mpi3mr_suspend(9), mpi3mr_resume(9), mpi3mr_pcierr_error_detected(9), mpi3mr_pcierr_slot_reset(9), mpi3mr_pcierr_resume(9), mpi3mr_pcierr_mmio_enabled(9)

like i said. everyone. invited. to the function party 🫶🌸

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and that's the whole page bestie!! this one came from ./drivers/scsi/mpi3mr, dated October 2026, and it's filed under mpi3mr_devstatuschg_evt_th(9) — go off, you beautiful tophalf, we're obsessed 💖✨🦋