mpi3mr_alloc_chain_bufs(9)

okay bestie, welcome to mpi3mr_alloc_chain_bufs(9) from the Kernel API Manual 💅✨ we’re doing chain buffers today, and yes, all the receipts are staying right here.

✨ NAME ✨

mpi3mr_alloc_chain_bufs — Allocate chain buffers 🎀

🌸 SYNOPSIS 🌸

int mpi3mr_alloc_chain_bufs (struct mpi3mr_ioc *mrioc );

🦋 ARGUMENTS 🦋

• mrioc — Adapter instance reference 🫶

💖 DESCRIPTION 💖

okay so this function is literally doing the thing its name says: it allocates chain buffers and sets a bitmap to indicate free chain buffers. no cap, that bitmap is the vibe check for which buffers are available.

Chain buffers are used to pass the SGE information along with MPI3 SCSI IO requests for host I/O. that’s their whole main character job 💅

⭐ RETURN ⭐

• 0 on success 🎉
• non-zero on failure 💀

🔥 SEE ALSO 🔥

Kernel file ./drivers/scsi/mpi3mr/mpi3mr_fw.c — and here’s the whole crew, every single reference, no skips, periodt:

mpi3mr_get_reply_desc(9),
mpi3mr_process_op_reply_q(9),
mpi3mr_blk_mq_poll(9),
mpi3mr_isr_poll(9),
mpi3mr_request_irq(9),
mpi3mr_setup_isr(9),
mpi3mr_reset_rc_name(9),
mpi3mr_reset_type_name(9),
mpi3mr_is_fault_recoverable(9),
mpi3mr_print_fault_info(9),
mpi3mr_save_fault_info(9),
mpi3mr_get_iocstate(9),
mpi3mr_free_ioctl_dma_memory(9),
mpi3mr_alloc_ioctl_dma_memory(9),
mpi3mr_fault_uevent_emit(9),
mpi3mr_clear_reset_history(9),
mpi3mr_issue_and_process_mur(9),
mpi3mr_revalidate_factsdata(9),
mpi3mr_bring_ioc_ready(9),
mpi3mr_soft_reset_success(9),
mpi3mr_diagfault_success(9),
mpi3mr_set_diagsave(9),
mpi3mr_issue_reset(9),
mpi3mr_admin_request_post(9),
mpi3mr_free_op_req_q_segments(9),
mpi3mr_free_op_reply_q_segments(9),
mpi3mr_delete_op_reply_q(9),
mpi3mr_alloc_op_reply_q_segments(9),
mpi3mr_alloc_op_req_q_segments(9),
mpi3mr_create_op_reply_q(9),
mpi3mr_create_op_req_q(9),
mpi3mr_create_op_queues(9),
mpi3mr_op_request_post(9),
mpi3mr_check_rh_fault_ioc(9),
mpi3mr_sync_timestamp(9),
mpi3mr_print_pkg_ver(9),
mpi3mr_watchdog_work(9),
mpi3mr_start_watchdog(9),
mpi3mr_stop_watchdog(9),
mpi3mr_setup_admin_qpair(9),
mpi3mr_issue_iocfacts(9),
mpi3mr_check_reset_dma_mask(9),
mpi3mr_process_factsdata(9),
mpi3mr_alloc_reply_sense_bufs(9),
mpimr_initialize_reply_sbuf_queues(9),
mpi3mr_issue_iocinit(9),
mpi3mr_unmask_events(9),
mpi3mr_issue_event_notification(9),
mpi3mr_process_event_ack(9),
mpi3mr_port_enable_complete(9),
mpi3mr_issue_port_enable(9),
mpi3mr_repost_diag_bufs(9),
mpi3mr_read_tsu_interval(9),
mpi3mr_print_ioc_info(9),
mpi3mr_cleanup_resources(9),
mpi3mr_setup_resources(9),
mpi3mr_enable_events(9),
mpi3mr_init_ioc(9),
mpi3mr_reinit_ioc(9),
mpi3mr_memset_op_reply_q_buffers(9),
mpi3mr_memset_op_req_q_buffers(9),
mpi3mr_memset_buffers(9),
mpi3mr_free_mem(9),
mpi3mr_issue_ioc_shutdown(9),
mpi3mr_cleanup_ioc(9),
mpi3mr_drv_cmd_comp_reset(9),
mpi3mr_flush_drv_cmds(9),
mpi3mr_pel_wait_post(9),
mpi3mr_pel_get_seqnum_post(9),
mpi3mr_pel_wait_complete(9),
mpi3mr_pel_get_seqnum_complete(9),
mpi3mr_check_op_admin_proc(9),
mpi3mr_soft_reset_handler(9),
mpi3mr_post_cfg_req(9),
mpi3mr_process_cfg_req(9),
mpi3mr_cfg_get_dev_pg0(9),
mpi3mr_cfg_get_sas_phy_pg0(9),
mpi3mr_cfg_get_sas_phy_pg1(9),
mpi3mr_cfg_get_sas_exp_pg0(9),
mpi3mr_cfg_get_sas_exp_pg1(9),
mpi3mr_cfg_get_enclosure_pg0(9),
mpi3mr_cfg_get_sas_io_unit_pg0(9),
mpi3mr_cfg_get_sas_io_unit_pg1(9),
mpi3mr_cfg_set_sas_io_unit_pg1(9),
mpi3mr_cfg_get_driver_pg1(9),
mpi3mr_cfg_get_driver_pg2(9)

this lil page is brought to you by ./drivers/scsi/mpi3mr, dated October 2026 — mwah, go allocate those buffers bestie 💜🫶