STRUCT MPI3MR_BSG_DRV_CMD(9)

💅 struct mpi3mr_bsg_drv_cmd(9) 💅

okay so bestie, welcome to the Kernel API Manual — today's main character is a struct, and honestly? she's that girl. this is the generic bsg data structure for all the driver specific requests. like, every single one. she's the blueprint, the moment, the blueprint moment. ✨

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🌸 NAME 🌸

struct mpi3mr_bsg_drv_cmd — the generic bsg data structure for all driver specific requests. no cap, that's literally her whole job description. 🎀

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🦋 SYNOPSIS 🦋

struct mpi3mr_bsg_drv_cmd {
    __u8 mrioc_id;
    __u8 opcode;
    __u16 rsvd1;
    __u32 rsvd2[4];
 };

she is small. she is tidy. she is four fields and a dream. 💖

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✨ Members ✨

• mrioc_id — the Controller ID. which controller we talking about? this. she's identifying. 👑
• opcode — the Driver specific opcode. this is the "what are we actually doing here" field, iykyk. 🔥
• rsvd1 — Reserved. hands off, bestie. 🙈
• rsvd2 — Reserved. also hands off. there are literally four of them in there. do not touch. 💀

real talk though: reserved means reserved, so please don't go writing your own little values into rsvd1 or rsvd2 and hoping for the best. that's not a vibe, that's a bug. 🫶

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🌈 SEE ALSO 🌈

the kernel file lives at ./include/uapi/scsi/scsi_bsg_mpi3mr.h — that's the whole squad's clubhouse, and these are all her friends:

• 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_in_reply_buf(9)
• struct mpi3mr_buf_entry(9)
• struct mpi3mr_buf_entry_list(9)
• struct mpi3mr_bsg_mptcmd(9)
• struct mpi3mr_bsg_packet(9)

like, that's the whole group chat. go read them. 📚

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<section> okay that's the page!! this one comes to you straight from ./include/uapi/scsi, dated October 2026, and she's the struct mpi3mr_bsg_drv_cmd(9) girlie forever. mwah 💋 slay, stay reserved, and don't touch rsvd1 or rsvd2. periodt. 🎀💖 </section>