rvt_get_credit(9)

🦋 rvt_get_credit(9) 🦋

okay so bestie, this is a page straight out of the Kernel API Manual — section 9, kernel girlie territory — and it's all about rvt_get_credit. no cap, it's a tiny one, so let's get into it 💖

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✨ NAME ✨

rvt_get_credit — flush the send work queue of a QP

like, that's the whole vibe. it flushes the send work queue of a QP. periodt 💅

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🌸 SYNOPSIS 🌸

void rvt_get_credit (struct rvt_qp *qp , u32 aeth );

that's it. that's the function. two args, no return value, iconic behavior 🎀

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🫶 ARGUMENTS 🫶

• qp — the qp who's send work queue to flush 🌀 (yes, that's the qp in question, the main character of this whole operation)
• aeth — the Acknowledge Extended Transport Header 💌 (a u32, bestie, it's giving "packed header energy")

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🔥 DESCRIPTION 🔥

so here's the one thing you literally cannot skip:

The QP s_lock should be held. 🔒

that's the whole description, and it is not a suggestion. lock first, then call. that's the vibe check and you gotta pass it 😭

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⭐ SEE ALSO ⭐

• Kernel file ./drivers/infiniband/sw/rdmavt/rc.c 📁 — like, the actual file, go read it
• rvt_compute_aeth(9) 🧮
• rvt_restart_sge(9) 🔁

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mwah, that's the page! stay safe out there, hold your locks, and remember this lil gem came from ./drivers/infiniband/sw/rdmavt, dated October 2026, in the Kernel API Manual 💜✨ bye bestie, slay responsibly 🧚‍♀️🎀