hfi1_error_port_qps(9)

hfi1_error_port_qps(9) 💅

okay so this is the Kernel API Manual page for hfi1_error_port_qps(9), and bestie, it’s giving “clean up the stale qp situation” energy. let’s get into it 🎀

✨ NAME ✨

• hfi1_error_port_qps — put a port's RC/UC qps into error state

🌸 SYNOPSIS 🌸

void hfi1_error_port_qps (struct hfi1_ibport *ibp , u8 sl );

🎀 ARGUMENTS 🎀

• ibp — the ibport.
• sl — the service level.

🦋 DESCRIPTION 🦋

okay so real talk: this function places all RC/UC qps with a given service level into error state. no cap, all of them with that service level.

it is generally called to force upper lay apps to abandon stale qps after an sl->sc mapping change. like, the mapping changed, the old qps are not the moment anymore, and this function says “bestie, into error state you go” 💅

💖 SEE ALSO 💖

Kernel file ./drivers/infiniband/hw/hfi1/qp.c:

• hfi1_setup_wqe(9)
• _hfi1_schedule_send(9)
• hfi1_schedule_send(9)
• qp_to_sdma_engine(9)
• qp_to_send_context(9)
• qp_iter_print(9)
• hfi1_qp_iter_cb(9)

mwah 💋 from the ./drivers/infiniband/hw/hfi1 girlies — October 2026 — hfi1_error_port_qps(9) out 🫶✨