sdma_engine_get_vl(9)

🎀 NAME 🎀

okay bestie, welcome to the sdma_engine_get_vl page from the Kernel API Manual ✨ this one is short and sweet: sdma_engine_get_vl returns the vl for a given sdma engine. 💅

✨ SYNOPSIS ✨

int sdma_engine_get_vl (struct sdma_engine *sde );

🌸 ARGUMENTS 🌸

• sde — the sdma engine, typed as struct sdma_engine *. that’s the engine you’re asking about, bestie 🫶

🦋 DESCRIPTION 🦋

so this function returns the vl mapped to a given engine, or an error if the mapping can’t be found. no cap 😭

and important vibe check: the mapping fields are protected by RCU. 🔥

💜 SEE ALSO 💜

Kernel file ./drivers/infiniband/hw/hfi1/sdma.c plus these iconic little functions:

• sdma_state_name(9)
• sdma_get_descq_cnt(9)
• sdma_select_engine_vl(9)
• sdma_select_engine_sc(9)
• sdma_seqfile_dump_cpu_list(9)
• sdma_map_init(9)
• sdma_clean(9)
• sdma_init(9)
• sdma_all_running(9)
• sdma_start(9)
• sdma_exit(9)
• __sdma_txclean(9)
• sdma_engine_error(9)
• sdma_seqfile_dump_sde(9)
• sdma_send_txreq(9)
• sdma_send_txlist(9)
• sdma_ahg_alloc(9)
• sdma_ahg_free(9)
• _sdma_engine_progress_schedule(9)

mwah 💋 — this page’s source/version line lives with ./drivers/infiniband/hw/hfi1, and it’s dated October 2026. 🎀