STRUCT MPI3MR_BSG_MPTCMD(9)

💅 struct mpi3mr_bsg_mptcmd(9) 💅

okay bestie, welcome to the Kernel API Manual ✨ — yes that's the manual name, we're fancy now 🎀 — and today's main character is struct mpi3mr_bsg_mptcmd. literally iconic. no cap.

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🌸 NAME 🌸

struct mpi3mr_bsg_mptcmd — the generic bsg data structure for all MPI Passthrough requests 🫶 (yes, all of them, she's a universal queen 👑).

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✨ SYNOPSIS ✨

struct mpi3mr_bsg_mptcmd {
    __u8 mrioc_id;
    __u8 rsvd1;
    __u16 timeout;
    __u32 rsvd2;
    struct mpi3mr_buf_entry_list buf_entry_list;
 };

look at her. five fields. immaculate vibes 💖

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🦋 Members 🦋

• mrioc_id — the Controller ID 🎯 like, which controller are we even talking to, bestie
• rsvd1 — Reserved 🙈 nothing to see here, move along
• timeout — the MPI request timeout ⏰ she waits, but only for so long
• rsvd2 — Reserved again 💀 do not touch, do not perceive
• buf_entry_list — the Buffer descriptor list 📋 a whole struct mpi3mr_buf_entry_list, living her best life inside this struct

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🌈 SEE ALSO 🌈

Kernel file ./include/uapi/scsi/scsi_bsg_mpi3mr.h — that's the source of truth, go read her 💜

and the whole friend group, fr fr:

• struct mpi3_driver_info_layout(9)
• struct mpi3mr_bsg_in_adpinfo(9)
• struct mpi3mr_bsg_adp_reset(9)
• struct mpi3mr_change_count(9)
• struct mpi3mr_device_map_info(9)
• struct mpi3mr_all_tgt_info(9)
• struct mpi3mr_logdata_enable(9)
• struct mpi3mr_bsg_out_pel_enable(9)
• struct mpi3mr_logdata_entry(9)
• struct mpi3mr_bsg_in_log_data(9)
• struct mpi3mr_hdb_entry(9)
• struct mpi3mr_bsg_in_hdb_status(9)
• struct mpi3mr_bsg_out_repost_hdb(9)
• struct mpi3mr_bsg_out_upload_hdb(9)
• struct mpi3mr_bsg_out_refresh_hdb_triggers(9)
• struct mpi3mr_bsg_drv_cmd(9)
• struct mpi3mr_bsg_in_reply_buf(9)
• struct mpi3mr_buf_entry(9)
• struct mpi3mr_buf_entry_list(9)
• struct mpi3mr_bsg_packet(9)

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bestie this is a UAPI struct, so those field names and the order are the whole vibe check — don't go renaming anything, the kernel will simply not be slaying about it 😭

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okay that's the whole page, mwah 💋 — this came from ./include/uapi/scsi, dated October 2026, and the header up top said struct mpi3mr_bsg_mptcmd(9) just so you know where you are 🧚✨