set_intr_bits(9)

✨ NAME ✨

Welcome to the set_intr_bits(9) page, bestie — straight out of the Kernel API Manual 💖

set_intr_bits — enable or disable a range of IRQ sources, where the range is one or more sources. Yes, it's giving “one little function, many interrupt vibes” ✨

🌸 SYNOPSIS 🌸

int set_intr_bits (struct hfi1_devdata *dd , u16 first , u16 last , bool
       set );

🎀 ARGUMENTS 🎀

• dd — a valid devdata, aka the main-character struct you gotta hand over 💅
• first — the first IRQ source to set or clear
• last — the last IRQ source to set or clear, and yes bestie, it's inclusive 🫶
• set — true means set the bits, false means clear the bits. No in-between, periodt.

🦋 DESCRIPTION 🦋

If first == last, you're setting the exact source. That's it — that's the whole little rule, and it ate 🔥

💜 SEE ALSO 💜

Kernel file: ./drivers/infiniband/hw/hfi1/chip.c — go browse, iykyk 🌈

• 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_rcd_eoi_intr(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_up_interrupts(9)
• hfi1_get_qp_map(9)
• init_qpmap_table(9)
• init_qos(9)
• hfi1_init_dd(9)
• create_pbc(9)

okay that's the whole page, bestie — source: ./drivers/infiniband/hw/hfi1, dated October 2026, and it's iconic 💅✨