mpt3sas_base_map_resources(9)

💖 mpt3sas_base_map_resources(9) 💖

okay so bestie, welcome to the mpt3sas_base_map_resources page, straight out of the Kernel API Manual ✨ this is the one that maps in controller resources — io/irq/memap — so like, the whole "here's where our stuff lives" era for the adapter. no cap, it's giving infrastructure 💅

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🌸 NAME 🌸

mpt3sas_base_map_resources — map in controller resources (that's io, irq, and memap, fyi 🫶)

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✨ SYNOPSIS ✨

int mpt3sas_base_map_resources (struct MPT3SAS_ADAPTER *ioc );

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🎀 ARGUMENTS 🎀

• ioc — the per adapter object 💖 like, one of these per adapter. she's the main character here, we're just doing her resource setup.

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🌈 RETURN 🌈

• 0 — success, we ate 🍓
• non-zero — failure 😭 something went sideways, check it

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🦋 SEE ALSO 🦋

the guest list is long, bestie, so I sorted the girlies into little groups. every single one of them is invited, don't @ me 💀

and the kernel file herself:

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

💜 timeouts & fault debug

• mpt3sas_base_check_cmd_timeout(9), _scsih_set_fwfault_debug(9)

🧚 readin', clonin', chainin'

• _base_readl_aero(9), _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_chain_buffer_dma_to_chain_buffer(9)
• _base_get_buffer_bar0(9), _base_get_buffer_phys_bar0(9)
• _clone_sg_entries(9)

🔥 watchdog, fault & coredump crew

• mpt3sas_remove_dead_ioc_func(9), _base_sync_drv_fw_timestamp(9), _base_fault_reset_work(9)
• mpt3sas_base_start_watchdog(9), mpt3sas_base_stop_watchdog(9)
• mpt3sas_base_fault_info(9), mpt3sas_base_coredump_info(9), mpt3sas_base_wait_for_coredump_completion(9)
• mpt3sas_halt_firmware(9)

🩷 logs & info dumps

• _base_sas_ioc_info(9), _base_display_event_data(9), _base_sas_log_info(9), _base_display_reply_info(9)

⭐ replies, interrupts & polling

• mpt3sas_base_done(9), _base_async_event(9), _base_get_cb_idx(9)
• 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)
• mpt3sas_base_release_callback_handler(9), mpt3sas_base_register_callback_handler(9), mpt3sas_base_initialize_callback_handler(9)

🧚‍♀️ sg / sgl builders (the crafty ones)

• _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, msix, irq & queues

• _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) — yes bestie, the counterpart, she's here too
• mpt3sas_base_check_for_fault_and_issue_reset(9)

🎀 getters (she gets)

• 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)

🍓 smid handlers

• mpt3sas_base_get_smid(9), mpt3sas_base_get_smid_scsiio(9), mpt3sas_base_get_smid_hpr(9), mpt3sas_base_free_smid(9)

🌈 writes & puts

• _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)

👑 display & update era

• _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)

🧚 fw reported qd, atto & static config

• _base_assign_fw_reported_qd(9)
• mpt3sas_atto_validate_nvram(9), mpt3sas_atto_get_sas_addr(9), mpt3sas_atto_init(9)
• _base_static_config_pages(9)

💜 memory pools & housekeeping

• mpt3sas_free_enclosure_list(9), _base_release_memory_pools(9)
• mpt3sas_check_same_4gb_region(9), _base_reduce_hba_queue_depth(9)
• _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_wait_for_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)

🫶 ioc unit control, facts, init & port enable

• mpt3sas_base_sas_iounit_control(9), mpt3sas_base_scsi_enclosure_processor(9)
• _base_get_port_facts(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), _base_unmask_events(9), _base_event_notification(9), mpt3sas_base_validate_event_type(9)

🌸 host diagnostic & diag reset

• mpt3sas_base_unlock_and_get_host_diagnostic(9), mpt3sas_base_lock_host_diagnostic(9)
• _base_diag_reset(9)

🎀 ready, operational, free, attach & detach

• mpt3sas_base_make_ioc_ready(9), _base_make_ioc_operational(9)
• mpt3sas_base_free_resources(9)
• mpt3sas_base_attach(9), mpt3sas_base_detach(9)

🔥 reset handlers

• _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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so yeah, that's the whole squad 😭💖 go map those resources bestie, you got this 🫶✨

🎀 and that's the page, brought to you by ./drivers/scsi/mpt3sas, October 2026 — mwah, stan the kernel, periodt 💅🌈