mpi3mr_alloc_diag_bufs(9)

💅 mpi3mr_alloc_diag_bufs ✨

okay so this is a page straight out of the Kernel API Manual, and it's about one very specific lil function, bestie. buckle up, it's short but it's important. 🎀

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🌸 NAME 🌸

mpi3mr_alloc_diag_bufs — literally just: allocate memory for diag buffers. that's the whole vibe. 💖

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🦋 SYNOPSIS 🦋

void mpi3mr_alloc_diag_bufs (struct mpi3mr_ioc *mrioc );

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✨ ARGUMENTS ✨

• mrioc — the adapter instance reference 🫶 like, the handle to the actual controller you're talking about. that's your main character.

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👑 DESCRIPTION 👑

okay so here's what's going down. this function does a little vibe check first: it checks whether the buffer sizes that the driver defined are greater than the controller local buffer sizes that IOCFacts gave you. 🔥

and if the driver-defined sizes are more? then the driver goes ahead and allocates that specific buffer by reading driver page1. periodt. 💅 no cap, that's the whole flow.

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💀 RETURN 💀

Nothing. like, genuinely nothing. void is gonna void. 🫶

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/scsi/mpi3mr/mpi3mr_app.c 📁
• mpi3mr_alloc_trace_buffer(9)
• mpi3mr_issue_diag_buf_post(9)
• mpi3mr_post_diag_bufs(9)
• mpi3mr_issue_diag_buf_release(9)
• mpi3mr_process_trigger(9)
• mpi3mr_global_trigger(9)
• mpi3mr_scsisense_trigger(9)
• mpi3mr_event_trigger(9)
• mpi3mr_reply_trigger(9)
• mpi3mr_get_num_trigger(9)
• mpi3mr_refresh_trigger(9)
• mpi3mr_release_diag_bufs(9)
• mpi3mr_set_trigger_data_in_hdb(9)
• mpi3mr_set_trigger_data_in_all_hdb(9)
• mpi3mr_hdbstatuschg_evt_th(9)
• mpi3mr_diag_buffer_for_type(9)
• mpi3mr_bsg_pel_abort(9)
• mpi3mr_bsg_verify_adapter(9)
• mpi3mr_bsg_refresh_hdb_triggers(9)
• mpi3mr_bsg_upload_hdb(9)
• mpi3mr_bsg_repost_hdb(9)
• mpi3mr_bsg_query_hdb(9)
• mpi3mr_enable_logdata(9)
• mpi3mr_get_logdata(9)
• mpi3mr_bsg_pel_enable(9)
• mpi3mr_get_all_tgt_info(9)
• mpi3mr_get_change_count(9)
• mpi3mr_bsg_adp_reset(9)
• mpi3mr_bsg_populate_adpinfo(9)
• mpi3mr_bsg_process_drv_cmds(9)
• mpi3mr_total_num_ioctl_sges(9)
• mpi3mr_bsg_build_sgl(9)
• mpi3mr_get_nvme_data_fmt(9)
• mpi3mr_build_nvme_sgl(9)
• mpi3mr_build_nvme_prp(9)
• mpi3mr_map_data_buffer_dma(9)
• mpi3mr_bsg_process_mpt_cmds(9)
• mpi3mr_app_save_logdata_th(9)
• mpi3mr_bsg_request(9)
• mpi3mr_bsg_exit(9)
• mpi3mr_bsg_node_release(9)
• mpi3mr_bsg_init(9)
• version_fw_show(9)
• fw_queue_depth_show(9)
• op_req_q_count_show(9)
• reply_queue_count_show(9)
• reply_qfull_count_show(9)
• logging_level_show(9)
• logging_level_store(9)
• adp_state_show(9)
• fwfault_count_show(9)
• sas_address_show(9)
• device_handle_show(9)
• persistent_id_show(9)
• sas_ncq_prio_supported_show(9)
• sas_ncq_prio_enable_show(9)

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that's the whole page bestie, go read the source and slay 🧚💜

sourced from ./drivers/scsi/mpi3mr, dated October 2026 — that's the version stamp, mwah 💋