hfi1_rcd_eoi_intr(9)

okay so this is the hfi1_rcd_eoi_intr(9) page from the Kernel API Manual, and we’re about to make interrupt cleanup make sense, bestie 💖

✨ NAME ✨

hfi1_rcd_eoi_intr — End of Interrupt processing action 👑

🦋 SYNOPSIS 🦋

void hfi1_rcd_eoi_intr (struct hfi1_ctxtdata *rcd );

🎀 ARGUMENTS 🎀

• rcd — Ptr to hfi1_ctxtdata of receive context 💅

🌸 DESCRIPTION 🌸

So the move here is: hold IRQs so we can safely clear the interrupt and recheck for a packet that may have arrived after the previous check and the interrupt clear. No cap, that recheck is the whole point 🫶

If a packet arrived, force another interrupt. Periodt 🔥

This routine can be called at the end of receive packet processing in interrupt service routines, interrupt service thread and softirqs ✨

🌈 SEE ALSO 🌈

Kernel file:

• ./drivers/infiniband/hw/hfi1/chip.c

And the whole friend group 👯‍♀️:

• hfi1_addr_from_offset(9)
• read_csr(9)
• write_csr(9)
• get_csr_addr(9)
• update_xmit_counters(9)
• apply_link_downgrade_policy(9)
• is_rcv_avail_int(9)
• is_rcv_urgent_int(9)
• general_interrupt(9)
• hfi1_netdev_rx_napi(9)
• data_vls_operational(9)
• encode_rcv_header_entry_size(9)
• hfi1_validate_rcvhdrcnt(9)
• set_hdrq_regs(9)
• update_statusp(9)
• wait_logical_linkstate(9)
• read_mod_write(9)
• set_intr_bits(9)
• set_up_interrupts(9)
• hfi1_get_qp_map(9)
• init_qpmap_table(9)
• init_qos(9)
• hfi1_init_dd(9)
• create_pbc(9)

That’s the whole vibe check, bestie 🫶 the source/version footer lands at ./drivers/infiniband/hw/hfi1, and this edition is dated October 2026. Slay and happy interrupt processing 💅✨