STRUCT MPI3MR_BSG_IN_REPLY_BUF(9)

🦋 struct mpi3mr_bsg_in_reply_buf(9) 🦋

okay so this is a page straight out of the Kernel API Manual, and bestie, it's literally just one little struct — but she's important 💅 she's the MPI reply buffer that gets handed back to you for an MPI Passthrough request. no cap.

---

✨ NAME ✨

struct mpi3mr_bsg_in_reply_buf — the MPI reply buffer returned for an MPI Passthrough request. that's it, that's the whole vibe 🎀

---

🌸 SYNOPSIS 🌸

here's the whole glow-up, copied exactly because we do not edit the source in this house 🙅‍♀️

struct mpi3mr_bsg_in_reply_buf {
    __u8 mpi_reply_type;
    __u8 rsvd1;
    __u16 rsvd2;
    __u8 reply_buf[];
 };

like, look at her. four whole fields. the last one is a flexible array and honestly? iconic. ✨

---

💖 Members 💖

okay so let's meet the cast, one member at a time, no skipping 🫶

• mpi_reply_type — a __u8 telling you the Type of MPI reply. this is the main character of the struct, the one that tells you what you're actually looking at 👑
• rsvd1 — Reserved. literally that's the whole description, she's reserved, respect her privacy 🙈
• rsvd2 — Reserved too, a __u16 this time. also minding her own business 🎀
• reply_buf — the Variable Length buffer based on mpirep type (their spelling, not mine, iykyk 💀). this is where the actual reply content lives, and its size flexes depending on what mpi_reply_type says. versatile queen 🦋

⚠️ real talk: rsvd1 and rsvd2 are Reserved — don't go writing your cute little values into them, bestie, that's not the vibe 😭

---

⭐ SEE ALSO ⭐

okay so here's the part where i list every single sibling because we do not leave anyone out of the group chat 💜

• Kernel file ./include/uapi/scsi/scsi_bsg_mpi3mr.h
• 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_buf_entry(9)
• struct mpi3mr_buf_entry_list(9)
• struct mpi3mr_bsg_mptcmd(9)
• struct mpi3mr_bsg_packet(9)

---

and that's the whole page, bestie!! 🎀 it lives in ./include/uapi/scsi, the date on this one is October 2026, and the version-y title stamped at the bottom was struct mpi3m...in_reply_buf(9). slay, go forth and passthrough your MPI requests responsibly 💅✨