bdx_isr_napi(9)

🎀 NAME 🎀

okay so bestie, welcome to the Kernel API Manual entry for bdx_isr_napi(9) — it's literally the Interrupt Service Routine for Bordeaux NIC. main character energy, tbh. 💅✨

📜 SYNOPSIS 📜

irqreturn_t bdx_isr_napi (int irq , void *dev );

🌸 ARGUMENTS 🌸

• irq — interrupt number
• dev — network device

✨ DESCRIPTION ✨

So the return vibe check is: IRQ_NONE if it was not our interrupt, and IRQ_HANDLED otherwise. no cap. 🫶

It reads the ISR register to know the interrupt reasons, and then proceeds them one by one. the reasons of interest are:

• RX_DESC — new packet has arrived and RXD fifo holds its descriptor
• RX_FREE — number of free Rx buffers in RXF fifo gets low
• TX_FREE — packet was transmited and RXF fifo holds its descriptor

🌈 SEE ALSO 🌈

Kernel file ./drivers/net/ethernet/tehuti/tehuti.c — and these besties are all linked:

• bdx_fifo_init(9)
• bdx_fifo_free(9)
• bdx_link_changed(9)
• bdx_fw_load(9)
• bdx_hw_start(9)
• bdx_close(9)
• bdx_open(9)
• __bdx_vlan_rx_vid(9)
• bdx_vlan_rx_add_vid(9)
• bdx_vlan_rx_kill_vid(9)
• bdx_change_mtu(9)
• bdx_rx_init(9)
• bdx_rx_free_skbs(9)
• bdx_rx_free(9)
• bdx_rx_alloc_skbs(9)
• bdx_rx_receive(9)
• __bdx_tx_db_ptr_next(9)
• bdx_tx_db_inc_rptr(9)
• bdx_tx_db_inc_wptr(9)
• bdx_tx_db_init(9)
• bdx_tx_db_close(9)
• bdx_tx_map_skb(9)
• bdx_tx_space(9)
• bdx_tx_transmit(9)
• bdx_tx_cleanup(9)
• bdx_tx_free_skbs(9)
• bdx_tx_push_desc(9)
• bdx_tx_push_desc_safe(9)
• bdx_probe(9)
• bdx_remove(9)

xoxo 💖 — source/version: ./drivers/net/ethernet/tehuti, date: October 2026, page: bdx_isr_napi(9). byeee, go slay some interrupts 🫶✨