sdma_running(9)

hey bestie, welcome to sdma_running(9) from the Kernel API Manual — it’s the little vibe-check function for an sdma engine, and honestly it’s giving “are we okay to submit packets or not?” 💅✨

🎀 NAME 🎀

sdma_running — state suitability test. No cap, that’s the whole name vibe: it checks suitability of the state. 🫶

✨ SYNOPSIS ✨

int sdma_running (struct sdma_engine *engine );

🌸 ARGUMENTS 🌸

• engine — the sdma engine. That’s the struct you’re checking, bestie. 💖

🦋 DESCRIPTION 🦋

Okay so sdma_running literally probes the internal state to determine if it is suitable for submitting packets. It’s an internal-state vibe check, periodt. 🔥

👑 RETURN 👑

• 1 — ok to submit
• 0 — not ok to submit

🌈 SEE ALSO 🌈

The whole squad is here, iykyk:

• Kernel file ./drivers/infiniband/hw/hfi1/sdma.h
• sdma exported routines(9)
• sdma PSM/verbs API(9)
• Infrastructure calls(9)
• struct sdma_engine(9)
• sdma_empty(9)
• sdma_txinit_ahg(9)
• sdma_txinit(9)
• sdma_txadd_page(9)
• sdma_txadd_daddr(9)
• sdma_txadd_kvaddr(9)
• sdma_progress(9)
• struct sdma_map_elem(9)
• sdma_engine_progress_schedule(9)

mwah 💋 — this page lives in ./drivers/infiniband/hw/hfi1, the version/date on deck is October 2026, and the page itself is sdma_running(9). slay. 🧚💜