STRUCT IRQ_BYPASS_CONSUMER(9)

💖 struct irq_bypass_consumer — IRQ bypass consumer definition 💖

okay so bestie, this is the <italic>struct irq_bypass_consumer(9)</italic> page from the Kernel API Manual, and we're gonna get you so comfy with it. it's giving "interrupt sink main character energy" and honestly? slay.

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✨ NAME ✨

struct irq_bypass_consumer — literally the definition of an IRQ bypass consumer. that's it, that's the vibe 💅

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🦋 SYNOPSIS 🦋

struct irq_bypass_consumer {
    struct eventfd_ctx *eventfd;
    struct irq_bypass_producer *producer;
    int (*add_producer)(struct irq_bypass_consumer *, struct
irq_bypass_producer *);
    void (*del_producer)(struct irq_bypass_consumer *, struct
irq_bypass_producer *);
    void (*stop)(struct irq_bypass_consumer *);
    void (*start)(struct irq_bypass_consumer *);
 };

no cap, copy that exactly if you're typing it out — don't get creative with the line breaks, that's literally how it's written 📝

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🎀 Members 🎀

• eventfd — the eventfd context, aka the lil matchmaker that pairs up producers and consumers together 🫶
• producer — the connected producer. and if there's no connection? it's NULL. (we've all been there, bestie 😭)
• add_producer — connect the IRQ consumer to an IRQ producer. the "hey let's link up" function 💫
• del_producer — disconnect the IRQ consumer from an IRQ producer. the "it's not you it's the interrupt routing" function 💔
• stop — do whatever quiesce operations are necessary prior to add/del. this one's optional, so no pressure 🧚
• start — do whatever startup operations are necessary after add/del. also optional, also no pressure 🌸

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🌈 Description 🌈

so the IRQ bypass consumer struct represents an interrupt sink — like, the place interrupts land — for participation in possible host bypass. real "i volunteer as tribute" energy ngl.

for instance (iykyk), a hypervisor may support offloads so it can bypass the host entirely, or offload portions of the interrupt handling to the VM. and that's the whole point of this struct — making that possible ✨🔥

it's giving "middleware but make it interrupts" 💜

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👑 SEE ALSO 👑

• Kernel file ./include/linux/irqbypass.h
• struct irq_bypass_producer(9) — the other half of this duo, go read it fr fr 🥰

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⚠️ friendly reminder bestie: producer is NULL when there's no connection, and stop + start are both optional. don't come for me if you assumed otherwise 💀

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and that's the whole page, periodt! 🎉 this lil gem lives under ./include/linux and the manual's stamped October 2026 — so go forth and bypass those interrupts, icon 💖🦋⭐