megasas_reset_timer(9)

🎀 megasas_reset_timer(9) 🎀

okay bestie so this is a page out of the Kernel API Manual and ngl it's a short one, but it's important — it's the whole "hey is this thing still alive??" vibe check for the megaraid SAS driver 💅

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✨ NAME ✨

megasas_reset_timer — quiesce the adapter if required

like, it's literally the function that goes "mmk this adapter might need a little nap" and puts it on ice when the situation calls for it 🧊

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🌸 SYNOPSIS 🌸

enum scsi_timeout_action megasas_reset_timer (struct scsi_cmnd *scmd );

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🦋 ARGUMENTS 🦋

• scmd — scsi cmnd. that's it, that's the whole argument, she's just a struct scsi_cmnd * and she's the main character of this function 🫶

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💜 DESCRIPTION 💜

okay so the way that this works is genuinely so real of her:

• it sets the FW busy flag and
• it reduces host->can_queue
• but only if the cmd has not been completed within the timeout period 👀

so basically if your command is out here ghosting past the timeout window, this function stops pretending everything's fine and starts throttling — marks the firmware as busy and shrinks that queue. lowkey a glow-down for the adapter, but a necessary one 😭✨

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🔥 SEE ALSO 🔥

first up, the source file it lives in, no cap:

./drivers/scsi/megaraid/megaraid_sas_base.c

and now the iconic extended universe, in the exact order the original serves it, because we do not skip entries in this house 👑

megasas_set_dma_settings(9), megasas_get_cmd(9), megasas_return_cmd(9), megasas_decode_evt(9), megasas_enable_intr_xscale(9), megasas_disable_intr_xscale(9), megasas_read_fw_status_reg_xscale(9), megasas_clear_intr_xscale(9), megasas_fire_cmd_xscale(9), megasas_adp_reset_xscale(9), megasas_check_reset_xscale(9), megasas_enable_intr_ppc(9), megasas_disable_intr_ppc(9), megasas_read_fw_status_reg_ppc(9), megasas_clear_intr_ppc(9), megasas_fire_cmd_ppc(9), megasas_check_reset_ppc(9), megasas_enable_intr_skinny(9), megasas_disable_intr_skinny(9), megasas_read_fw_status_reg_skinny(9), megasas_clear_intr_skinny(9), megasas_fire_cmd_skinny(9), megasas_check_reset_skinny(9), megasas_enable_intr_gen2(9), megasas_disable_intr_gen2(9), megasas_read_fw_status_reg_gen2(9), megasas_clear_intr_gen2(9), megasas_fire_cmd_gen2(9), megasas_adp_reset_gen2(9), megasas_check_reset_gen2(9), megasas_issue_polled(9), megasas_issue_blocked_cmd(9), megasas_issue_blocked_abort_cmd(9), megasas_make_sgl32(9), megasas_make_sgl64(9), megasas_make_sgl_skinny(9), megasas_build_dcdb(9), megasas_build_ldio(9), megasas_cmd_type(9), megasas_queue_command(9), megasas_complete_cmd_dpc(9), megasas_start_timer(9), megasas_wait_for_outstanding(9), megasas_generic_reset(9), megasas_dump(9), megasas_dump_reg_set(9), megasas_dump_fusion_io(9), megasas_reset_bus_host(9), megasas_task_abort(9), megasas_reset_target(9), megasas_bios_param(9), megasas_service_aen(9), megasas_complete_int_cmd(9), megasas_complete_abort(9), megasas_complete_cmd(9), megasas_issue_pending_cmds_again(9), megasas_deplete_reply_queue(9), megasas_isr(9), megasas_transition_to_ready(9), megasas_teardown_frame_pool(9), megasas_create_frame_pool(9), megasas_free_cmds(9), megasas_alloc_cmds(9), megasas_ld_list_query(9), megasas_host_device_list_query(9), megasas_get_ctrl_info(9), megasas_issue_init_mfi(9), megasas_setup_irqs_msix(9), megasas_setup_jbod_map(9), megasas_get_device_list(9), megasas_set_high_iops_queue_affinity_and_hint(9), megasas_alloc_irq_vectors(9), megasas_init_fw(9), megasas_release_mfi(9), megasas_get_seq_num(9), megasas_register_aen(9), megasas_start_aen(9), megasas_io_attach(9), megasas_set_dma_mask(9), megasas_alloc_ctrl_mem(9), megasas_alloc_ctrl_dma_buffers(9), megasas_probe_one(9), megasas_flush_cache(9), megasas_shutdown_controller(9), megasas_suspend(9), megasas_resume(9), megasas_detach_one(9), megasas_shutdown(9), megasas_mgmt_fw_ioctl(9), megasas_mgmt_ioctl(9), megasas_update_device_list(9), megasas_add_remove_devices(9), megasas_init(9), megasas_exit(9)

fr fr that's the entire friend group and every single one of them deserves a follow back 💖

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🌈 and that's the whole page bestie!! sourced straight out of ./drivers/scsi/megaraid, dated October 2026, and living its best life as megasas_reset_timer(9) — ty for reading, mwah, slay, periodt 💅🎀✨