iavf_clean_rx_irq(9)

📦 version 7.3.1, in nixpkgs unstable

💅 iavf_clean_rx_irq — the bounce-buffer rx cleanup queen 👑

Okay so bestie, let me tell you about iavf_clean_rx_irq from the Kernel API Manual. This function is literally the main character of Rx interrupt processing, no cap. It's giving "I clean completed descriptors from the Rx ring" and honestly? Obsessed.

✨ NAME ✨

iavf_clean_rx_irq — Clean completed descriptors from Rx ring - bounce buf. Periodt. That's the whole vibe.

✨ SYNOPSIS ✨

int iavf_clean_rx_irq (struct iavf_ring *rx_ring , int budget );

Look at her. Iconic signature. 🎀

✨ ARGUMENTS ✨

  • rx_ring — the rx descriptor ring to transact packets on, bestie. This is where the magic happens. 🦋
  • budget — Total limit on number of packets to process. Like, the maximum amount of work we're allowing ourselves to do before we gotta dip. 💅

✨ DESCRIPTION ✨

Okay so here's the tea ☕: this function provides a "bounce buffer" approach to Rx interrupt processing. I know, I know, "bounce buffer" sounds like a cute lil trampoline and honestly it kinda is?? 🧚

The advantage to this — and this is the part that ate, fr fr — is that on systems that have expensive overhead for IOMMU access, this provides a means of avoiding it by maintaining the mapping of the page to the system. So like, instead of paying that IOMMU tax every single time, we just keep the page mapped. Highkey genius. The way that saves overhead?? Literally stunning. 🔥

Returns amount of work completed. That's it. That's the return value. Don't overthink it, bestie. 👑

✨ SEE ALSO ✨

This is the friend group, and yes, it's a big one. Every single one of these showed up to the party and we're naming them all, iykyk 💜:

Like I said. Big friend group. But every single one matters, okay?? Don't skip any of them, bestie. 😭🫶

Written with 💖 by the kernel crew, straight from ./drivers/net/ethernet/intel/iavf, version October 2026. Slay. 🌈✨

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