ENUM QUEUE_TYPE(9)

🦋 NAME 🦋

ok so this is enum queue_type(9) — the kernel API manual page for enum queue_type, which is literally just… the type of a queue 💅 that's it, that's the whole vibe. it's the little enum that tells you who writes to a queue and who reads from it, iykyk.

✨ SYNOPSIS ✨

bestie, here's the whole thing, no notes:

enum queue_type {
    QUEUE_TYPE_TO_CLIENT ,
    QUEUE_TYPE_FROM_CLIENT ,
    QUEUE_TYPE_FROM_ULP ,
    QUEUE_TYPE_TO_ULP

};

🎀 Constants 🎀

okay so these are the four members, and each one is basically a "who's allowed to touch this queue" vibe check 🔥

• QUEUE_TYPE_TO_CLIENT — so this queue is written by the rxe driver and read by the client, and that client might be a user space application or a kernel ulp. heads up though: this one is used by rxe internals only 🙈
• QUEUE_TYPE_FROM_CLIENT — the flip side, gorgeous 💖 the queue is written by the client and read by the rxe driver. also used by rxe internals only, so don't go thinking you can just help yourself ✨
• QUEUE_TYPE_FROM_ULP — this queue is written by the kernel ulp and read by the rxe driver. and this one is used by kernel verbs APIs only on behalf of ulps 🫶
• QUEUE_TYPE_TO_ULP — and finally, the queue is written by the rxe driver and read by the kernel ulp. same deal as above: used by kernel verbs APIs only on behalf of ulps 👑

like honestly? four constants, four directions, zero ambiguity. main character energy from every single one of them 🌈

🌈 SEE ALSO 🌈

if you wanna go read the actual source (and honestly, go off 👑), it's right here:

• Kernel file ./drivers/infiniband/sw/rxe/rxe_queue.h 🦋

and that's the whole page, bestie, no cap 💜 this lil icon dropped from ./drivers/infiniband/sw/rxe back in October 2026 — periodt, go read the header file, it ate 💅✨🍓