ice_fdir_num_avail_fltr(9)

📦 version 7.3.1, in nixpkgs unstable

💅 ice_fdir_num_avail_fltr — the Kernel API Manual, bestie edition 🦋

okay so this is a page from the Kernel API Manual (the (9) is giving "section 9, kernel interfaces" ✨) and it's all about ice_fdir_num_avail_fltr. yes that's a long name. no we're not shortening it. it's iconic and we respect it. 🎀

✨ NAME ✨

ice_fdir_num_avail_fltr — literally just returns the number of unused flow director filters 💅 that's it. that's the whole job. and she does it flawlessly.

🦋 SYNOPSIS 🦋

int ice_fdir_num_avail_fltr (struct ice_hw *hw , struct ice_vsi *vsi );

like, she takes two pointers and hands you back an int. simple. elegant. main character energy fr fr 👑

🎀 ARGUMENTS 🎀

  • hw — pointer to the hardware structure. the actual physical vibes. 🖥️
  • vsi — the software VSI structure. the software-side bestie that mirrors it. 🌸

💖 DESCRIPTION 💖

okay so here's the lore, because you need to know this. there are 2 filter pools:

  • the guaranteed pool 🥇
  • the best effort pool (a.k.a. shared) 🤝

each VSI can pull filters from either pool. no gatekeeping. 🫶

the guaranteed pool gets divided between VSIs — so everyone gets their own little slice, cute. and the best effort filter pool is common to all VSIs and is a device shared resource pool — meaning it's one big communal snack bowl for the whole device 🍓

so the number of filters available to this VSI is:

the sum of the VSI's guaranteed filter pool ➕ the global available best effort filter pool ✨

and then — the moment we've all been waiting for — she returns the number of available flow director filters to this VSI. ate. no crumbs. 🔥

💜 SEE ALSO 💜

the kernel file lives at ./drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c — go read it, it's giving lore drop 📖

and now, the squad. the whole friend group. every single one of them, not skipping a single name because that would be disrespectful: 😭

like. forty of them. a whole group chat. iykyk 💀✨

ngl bestie, this one's genuinely chill — no danger flags, no deprecated warnings, no undefined behaviour lurking in the shadows. she just counts filters and goes home. a queen. 👑

🌸 okay that's the page!! huge shoutout to ./drivers/net/ethernet/intel/ice for hosting this masterpiece, and to October 2026 for the timestamp — future vibes only, we love to see it 🦋✨💖 mwah, go read your kerneldoc, ily, byeee 🎀

📦 where this page comes from