sdma_get_descq_cnt(9)

💅 sdma_get_descq_cnt — kernel API manual, bestie edition 🎀

okay so real talk, you opened the manpage for sdma_get_descq_cnt and it's a kernel API manual situation — section 9, the whole vibe. come sit with me, this one's short and sweet and we're gonna slay it 💖

---

✨ NAME ✨

sdma_get_descq_cnt — literally the function that gets called when the device gets probed. that's it, that's the whole name section 🫶

---

🌸 SYNOPSIS 🌸

u16 sdma_get_descq_cnt (void );

look at her. returns a u16, takes nothing. iconic behavior honestly 👑

---

🦋 ARGUMENTS 🦋

• void — no arguments. zero. nada. she doesn't want anything from you, she's lowkey self-sufficient 😌

---

💜 DESCRIPTION 💜

so what does she actually do? she returns a validated descq count ✨ that's the whole flex.

rn she's currently only used in the verbs initialization, specifically to build the tx list — so like, that's her one job and she's doing it 💅

⚠️ heads up bestie: this will probably be deleted in favor of a more scalable approach to alloc tx's. so don't get too attached, she's giving limited-edition energy 😭

---

🔥 SEE ALSO 🔥

the kernel file lives at ./drivers/infiniband/hw/hfi1/sdma.c and here's the whole friend group, no cap, all of them:

• sdma_state_name(9)
• sdma_engine_get_vl(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)

---

and that's the page! 🧚 this one came from ./drivers/infiniband/hw/hfi1, dated October 2026, and it's sdma_get_descq_cnt(9) — go forth and build that tx list, bestie, you got this fr fr 🌈⭐