stmmac_interrupt(9)

📦 version 7.3.1, in nixpkgs unstable

👑 stmmac_interrupt 👑

okay so bestie, we're in the Kernel API Manual (section 9, the kernel API girlies know) and today's main character is stmmac_interrupt. pull up a chair, this one's the beating heart of the whole ethernet driver 💖

✨ NAME ✨

stmmac_interrupt — the main ISR. that's Interrupt Service Routine, and yes she is the one, the headliner, the moment the hardware taps the kernel on the shoulder and goes "hey. hey bestie. something happened." 🫶

🦋 SYNOPSIS 🦋

irqreturn_t stmmac_interrupt (int irq , void *dev_id );

literally the whole signature, no notes 💅

🎀 ARGUMENTS 🎀

  • irq — the interrupt number. which interrupt are we talking about? this one. that's the number.
  • dev_id — the thingy you use to pass the net device pointer through. it's giving "here's my friend's number, text them not me" 🦋

🔥 DESCRIPTION 🔥

okay so this is the main driver interrupt service routine — the head cheerleader of the interrupt world, the one everybody's waiting on. when she gets called, she can call:

  • the DMA service routine — that's the one managing incoming frame reception and transmission status. she's handling the mail, both directions, no big deal 💅
  • the Core interrupts — and these are here to manage: remote wake-up, the management counter, and LPI interrupts. yes all three. she's multifunctional. she contains multitudes. periodt ✨

so basically: hardware yells, stmmac_interrupt answers, and a whole little ecosystem of follow-up calls happens. no cap, that's the whole vibe 🔥

💖 SEE ALSO 💖

first up, the kernel file where all this lives:

./drivers/net/ethernet/stmicro/stmmac/stmmac_main.c

and then the extended friend group — the whole stmmac cinematic universe, iykyk:

like. she knows everyone. the whole roster. it's giving main character energy across an entire directory 🌈

no cap bestie, this page comes straight from ./drivers/net/ethernet/stmicro... and it's dated October 2026 — so go forth, read the source, and remember: when the hardware interrupts, stmmac_interrupt answers 💜🎀🦋
📦 where this page comes from