ENUM RNBD_MSG_TYPE(9)

💅 enum rnbd_msg_type(9) — like, the RNBD message types bestie

okay so this is a page from the Kernel API Manual, and honestly? it's giving "short but iconic." no cap, every single constant matters here, so let's get into it 🫶

✨ NAME ✨

enum rnbd_msg_type — the RNBD message types. that's it, that's the vibe. these are the message kinds floating around in RNBD land 💌

🦋 SYNOPSIS 🦋

here's the whole enum, and yes you're gonna read all of it, it's not that long bestie:

enum rnbd_msg_type {
    RNBD_MSG_SESS_INFO ,
    RNBD_MSG_SESS_INFO_RSP ,
    RNBD_MSG_OPEN ,
    RNBD_MSG_OPEN_RSP ,
    RNBD_MSG_IO ,
    RNBD_MSG_CLOSE

};

🌸 Constants 🌸

okay so these are the actual constants, and each one is literally serving a purpose:

• RNBD_MSG_SESS_INFO — the initial session info, going from client ➡️ server. first impressions, main character energy ✨
• RNBD_MSG_SESS_INFO_RSP — the initial session info, but coming back from server ➡️ client. it's the reply, and it ate 💅
• RNBD_MSG_OPEN — the open (map) device request. asking to be let in, very demure 🙈
• RNBD_MSG_OPEN_RSP — the response to an RNBD_MSG_OPEN. so like, the answer to the ask 🎀
• RNBD_MSG_IO — block IO request operation. the actual getting-things-done one, highkey the busy icon of the group 🔥
• RNBD_MSG_CLOSE — the close (unmap) device request. saying goodbye, and we respect it 😭

👑 SEE ALSO 👑

• Kernel file ./drivers/block/rnbd/rnbd-proto.h
• struct rnbd_msg_hdr(9)
• struct rnbd_msg_sess_info(9)
• struct rnbd_msg_sess_info_rsp(9)
• struct rnbd_msg_open(9)
• struct rnbd_msg_close(9)
• struct rnbd_msg_open_rsp(9)
• struct rnbd_msg_io(9)
• enum rnbd_io_flags(9)

like, go read all of those too, they're all in ./drivers/block/rnbd/rnbd-proto.h and they're all connected, iykyk 🌈

and that's the whole page bestie!! this one came from ./drivers/block/rnbd and it's dated October 2026 — periodt, go forth and reference your message types responsibly 💖🎀🦋