mpt_add_chain_64bit(9)

💅 mpt_add_chain_64bit — the mpt kernel API manual, section 9

okay so bestie, welcome to mpt_add_chain_64bit(9) 🎀 — a little kernel API page from the mpt driver family. It's short, it's sweet, it does exactly one thing, and honestly? It ate. Let's get into it ✨

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✨ NAME ✨

mpt_add_chain_64bit — literally just "Place a 64 bit chain SGE at address pAddr." that's the whole job. no notes. 👑

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🌸 SYNOPSIS 🌸

void mpt_add_chain_64bit (void *pAddr , u8 next , u16 length ,
       dma_addr_t dma_addr );

it returns void, so like… it gives nothing back emotionally, and that's fine 💜

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🦋 ARGUMENTS 🦋

four args, all main-character energy, let's meet them 🫶

• pAddr — the virtual address for the SGE. this is where the magic happens, iykyk 💫
• next — the nextChainOffset value, and listen, it's counted in u32's (yes, u32's — plural, possessive, iconic) 🌈
• length — the length of the next SGL segment. how much? length much. 📏
• dma_addr — the physical address. the real one. the one the hardware actually knows 😭

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🔥 SEE ALSO 🔥

okay this is the part where the page just absolutely goes off — like, the see-also list is longer than the actual page and I respect it so much. Also heads up: the kernel file it lives in is ./drivers/message/fusion/mptbase.c 📁

• mpt_get_cb_idx(9)
• mpt_is_discovery_complete(9)
• mpt_remove_dead_ioc_func(9)
• mpt_fault_reset_work(9)
• mpt_interrupt(9)
• mptbase_reply(9)
• mpt_register(9)
• mpt_deregister(9)
• mpt_event_register(9)
• mpt_event_deregister(9)
• mpt_reset_register(9)
• mpt_reset_deregister(9)
• mpt_device_driver_register(9)
• mpt_device_driver_deregister(9)
• mpt_get_msg_frame(9)
• mpt_put_msg_frame(9)
• mpt_put_msg_frame_hi_pri(9)
• mpt_free_msg_frame(9)
• mpt_add_sge(9)
• mpt_add_sge_64bit(9)
• mpt_add_sge_64bit_1078(9)
• mpt_add_chain(9)
• mpt_send_handshake_request(9)
• mpt_host_page_access_control(9)
• mpt_host_page_alloc(9)
• mpt_verify_adapter(9)
• mpt_get_product_name(9)
• mpt_mapresources(9)
• mpt_attach(9)
• mpt_detach(9)
• mpt_suspend(9)
• mpt_resume(9)
• mpt_do_ioc_recovery(9)
• mpt_detect_bound_ports(9)
• mpt_adapter_disable(9)
• mpt_adapter_dispose(9)
• MptDisplayIocCapabilities(9)
• MakeIocReady(9)
• mpt_GetIocState(9)
• GetIocFacts(9)
• GetPortFacts(9)
• SendIocInit(9)
• SendPortEnable(9)
• mpt_alloc_fw_memory(9)
• mpt_free_fw_memory(9)
• mpt_do_upload(9)
• mpt_downloadboot(9)
• KickStart(9)
• mpt_diag_reset(9)
• SendIocReset(9)
• initChainBuffers(9)
• PrimeIocFifos(9)
• mpt_handshake_req_reply_wait(9)
• WaitForDoorbellAck(9)
• WaitForDoorbellInt(9)
• WaitForDoorbellReply(9)
• GetLanConfigPages(9)
• mptbase_sas_persist_operation(9)
• GetIoUnitPage2(9)
• mpt_GetScsiPortSettings(9)
• mpt_readScsiDevicePageHeaders(9)
• mpt_inactive_raid_list_free(9)
• mpt_inactive_raid_volumes(9)
• mpt_raid_phys_disk_pg0(9)
• mpt_raid_phys_disk_get_num_paths(9)
• mpt_raid_phys_disk_pg1(9)
• mpt_findImVolumes(9)
• SendEventNotification(9)
• SendEventAck(9)
• mpt_config(9)
• mpt_ioc_reset(9)
• procmpt_create(9)
• procmpt_destroy(9)
• mpt_print_ioc_summary(9)
• mpt_set_taskmgmt_in_progress_flag(9)
• mpt_clear_taskmgmt_in_progress_flag(9)
• mpt_halt_firmware(9)
• mpt_SoftResetHandler(9)
• mpt_Soft_Hard_ResetHandler(9)
• mpt_HardResetHandler(9)
• ProcessEventNotification(9)
• mpt_fc_log_info(9)
• mpt_spi_log_info(9)
• mpt_sas_log_info(9)
• mpt_iocstatus_info_config(9)
• mpt_iocstatus_info(9)
• fusion_init(9)
• fusion_exit(9)

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🧚 sign-off 🧚

so yeah, that's the page 💖 it comes to you from ./drivers/message/fusion, dated October 2026, sitting pretty in section 9 of the kernel API manual — go read the whole mpt family, it's giving lore, fr fr. mwah! 💅✨🎀