mpt3sas_base_free_smid(9)

💖 mpt3sas_base_free_smid(9) — Kernel API Manual 💖

okay so bestie, welcome to the manual page for mpt3sas_base_free_smid from the Kernel API Manual. This is the one that hands your smid back to the free list when you're done with it. Giving it back. Releasing. Letting it go. 🦋

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✨ NAME ✨

mpt3sas_base_free_smid — put smid back on free_list

Literally that's the whole gig: it takes a system request message index and returns it to the free list so somebody else can use it. Recycling era. ♻️

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🌸 SYNOPSIS 🌸

void mpt3sas_base_free_smid (struct MPT3SAS_ADAPTER *ioc , u16 smid );

Returns void, so like… no take-backs, no error codes, nothing to check. It just does the thing. 💅

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🎀 ARGUMENTS 🎀

• ioc — the per adapter object 💜 this is your adapter, your whole little world
• smid — the system request message index 👑 the exact number you're giving back

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🔥 SEE ALSO 🔥

First up, the source file itself, because reading the actual code is highkey iconic:

• Kernel file ./drivers/scsi/mpt3sas/mpt3sas_base.c

and then, okay, brace yourself, because this SEE ALSO list is long — it's giving "she listed every single person in the group chat". But we're not skipping anybody, no cap. 🫶

Timeouts, faults and the dramatic stuff 😭

• mpt3sas_base_check_cmd_timeout(9), _scsih_set_fwfault_debug(9), _base_readl_aero(9)
• _base_fault_reset_work(9), mpt3sas_base_fault_info(9), mpt3sas_base_coredump_info(9)
• mpt3sas_base_wait_for_coredump_completion(9), mpt3sas_halt_firmware(9)
• mpt3sas_base_check_for_fault_and_issue_reset(9), _base_sync_drv_fw_timestamp(9)

Cloning & memory-copying besties 🧚

• _base_clone_reply_to_sys_mem(9), _base_clone_mpi_to_sys_mem(9), _base_clone_to_sys_mem(9)
• _base_get_chain(9), _base_get_chain_phys(9), _base_get_buffer_bar0(9), _base_get_buffer_phys_bar0(9)
• _base_get_chain_buffer_dma_to_chain_buffer(9), _clone_sg_entries(9)

Watchdogs & dead-adapter cleanup 🐕

• mpt3sas_remove_dead_ioc_func(9), mpt3sas_base_start_watchdog(9), mpt3sas_base_stop_watchdog(9)

Logging, event data & reply info ✨

• _base_sas_ioc_info(9), _base_display_event_data(9), _base_sas_log_info(9), _base_display_reply_info(9)
• mpt3sas_base_done(9), _base_async_event(9), _base_get_cb_idx(9)

Interrupts, polling & reply queues ⚡

• mpt3sas_base_pause_mq_polling(9), mpt3sas_base_resume_mq_polling(9)
• mpt3sas_base_mask_interrupts(9), mpt3sas_base_unmask_interrupts(9)
• _base_process_reply_queue(9), mpt3sas_blk_mq_poll(9)
• _base_interrupt(9), _base_irqpoll(9), _base_init_irqpolls(9)
• _base_is_controller_msix_enabled(9), mpt3sas_base_sync_reply_irqs(9)

Callback handlers 📞

• mpt3sas_base_release_callback_handler(9), mpt3sas_base_register_callback_handler(9), mpt3sas_base_initialize_callback_handler(9)

SG lists, chains & PRPs (the nerd corner, respectfully) 🤓

• _base_build_zero_len_sge(9), _base_add_sg_single_32(9), _base_add_sg_single_64(9)
• _base_get_chain_buffer_tracker(9), _base_build_sg(9), _base_build_nvme_prp(9), base_make_prp_nvme(9)
• _base_check_pcie_native_sgl(9), _base_add_sg_single_ieee(9), _base_build_zero_len_sge_ieee(9)
• _base_build_sg_scmd(9), _base_build_sg_scmd_ieee(9), _base_build_sg_ieee(9)

DMA, MSI-X, IRQs & resource wrangling 💅

• _base_config_dma_addressing(9), _base_check_enable_msix(9)
• mpt3sas_base_free_irq(9), _base_request_irq(9), _base_assign_reply_queues(9)
• _base_check_and_enable_high_iops_queues(9), mpt3sas_base_disable_msix(9)
• _base_alloc_irq_vectors(9), _base_enable_msix(9)
• mpt3sas_base_unmap_resources(9), mpt3sas_base_map_resources(9)

Gettin' frames, sense buffers & SGList pointers 🎁

• mpt3sas_base_get_msg_frame(9), mpt3sas_base_get_sense_buffer(9), mpt3sas_base_get_sense_buffer_dma(9)
• mpt3sas_base_get_pcie_sgl(9), mpt3sas_base_get_pcie_sgl_dma(9), mpt3sas_base_get_reply_virt_addr(9)
• _base_get_msix_index(9), _base_get_high_iops_msix_index(9)
• mpt3sas_base_get_smid(9), mpt3sas_base_get_smid_scsiio(9), mpt3sas_base_get_smid_hpr(9)

Writes & SMID putting 🌈

• _base_mpi_ep_writeq(9), _base_writeq(9), _base_set_and_get_msix_index(9)
• _base_put_smid_mpi_ep_scsi_io(9), _base_put_smid_scsi_io(9), _base_put_smid_fast_path(9)
• _base_put_smid_hi_priority(9), mpt3sas_base_put_smid_nvme_encap(9), _base_put_smid_default(9)
• _base_put_smid_scsi_io_atomic(9), _base_put_smid_fast_path_atomic(9), _base_put_smid_hi_priority_atomic(9), _base_put_smid_default_atomic(9)

Branding, firmware pkg versions & caps 👑

• _base_display_OEMs_branding(9), _base_display_fwpkg_version(9), _base_display_ioc_capabilities(9)
• mpt3sas_base_update_missing_delay(9), _base_update_ioc_page1_inlinewith_perf_mode(9)

Diag triggers 🩺

• _base_get_event_diag_triggers(9), _base_get_scsi_diag_triggers(9), _base_get_mpi_diag_triggers(9)
• _base_get_master_diag_triggers(9), _base_check_for_trigger_pages_support(9)
• _base_get_diag_triggers(9), _base_update_diag_trigger_pages(9), _base_assign_fw_reported_qd(9)

ATTO stuff & static config pages 🍓

• mpt3sas_atto_validate_nvram(9), mpt3sas_atto_get_sas_addr(9), mpt3sas_atto_init(9)
• _base_static_config_pages(9), mpt3sas_free_enclosure_list(9), _base_release_memory_pools(9)
• mpt3sas_check_same_4gb_region(9), _base_reduce_hba_queue_depth(9)

Memory pools (the allocation saga) 🏊

• _base_allocate_pcie_sgl_pool(9), _base_allocate_chain_dma_pool(9), _base_allocate_sense_dma_pool(9)
• _base_allocate_reply_pool(9), _base_allocate_reply_free_dma_pool(9)
• _base_allocate_reply_post_free_array(9), base_alloc_rdpq_dma_pool(9), _base_allocate_memory_pools(9)

IOC state, doorbells & handshakes 🔔

• mpt3sas_base_get_iocstate(9), _base_wait_on_iocstate(9), _base_dump_reg_set(9)
• _base_wait_for_doorbell_int(9), _base_wait_for_doorbell_ack(9), _base_wait_for_doorbell_not_used(9)
• _base_send_ioc_reset(9), mpt3sas_wait_for_ioc(9), _base_handshake_req_reply_wait(9)

IOUNIT control & enclosure processor 📦

• mpt3sas_base_sas_iounit_control(9), mpt3sas_base_scsi_enclosure_processor(9)

Facts, init, port enable & discovery 🚀

• _base_get_port_facts(9), _base_wait_for_iocstate(9), _base_get_ioc_facts(9), _base_send_ioc_init(9)
• mpt3sas_port_enable_done(9), _base_send_port_enable(9), mpt3sas_port_enable(9)
• _base_determine_wait_on_discovery(9)

Events 🎪

• _base_unmask_events(9), _base_event_notification(9), mpt3sas_base_validate_event_type(9)

Host diagnostic locking 🔐

• mpt3sas_base_unlock_and_get_host_diagnostic(9), mpt3sas_base_lock_host_diagnostic(9)

Reset, ready, operational, attach/detach — the whole lifecycle 😮‍💨

• _base_diag_reset(9), mpt3sas_base_make_ioc_ready(9), _base_make_ioc_operational(9)
• mpt3sas_base_free_resources(9), mpt3sas_base_attach(9), mpt3sas_base_detach(9)
• _base_pre_reset_handler(9), _base_clear_outstanding_mpt_commands(9), _base_clear_outstanding_commands(9)
• _base_reset_done_handler(9), mpt3sas_wait_for_commands_to_complete(9)
• _base_check_ioc_facts_changes(9), mpt3sas_base_hard_reset_handler(9)

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okay and finally, the cute sign-off: this little masterpiece lives in ./drivers/scsi/mpt3sas and it's dated October 2026. go forth and free your smids responsibly bestie 💖✨🎀