igb_write_vfta(9)

📦 version 7.3.1, in nixpkgs unstable

💅 igb_write_vfta(9) — Kernel API Manual, bestie edition ✨

okay so listen. this is a page from the Kernel API Manual and it's about one (1) tiny little function that does one (1) tiny little thing, and honestly? she's iconic for it. let's get into it 🫶

✨ NAME ✨

igb_write_vfta — writes a value into the VLAN filter table. that's it. that's the whole job. and she does it flawlessly. 💅

🌸 SYNOPSIS 🌸

void igb_write_vfta (struct e1000_hw *hw , u32 offset , u32 value );

returns nothing (void), takes three things, no notes. main character energy fr fr 👑

🎀 ARGUMENTS 🎀

  • hw — pointer to the HW structure. like, the hardware situation. you gotta hand her the struct so she knows which NIC she's talking to 💖
  • offset — the register offset in the VLAN filter table. aka where in the table we're dropping this value 📍
  • value — the register value that gets written to the VLAN filter table. the actual payload, the star of the show ⭐

🦋 DESCRIPTION 🦋

so what does she do?? she writes value at the given offset in the register array — and that array is the one storing the VLAN filter table. that's literally the entire plot. no twists, no subplot, just a clean little write into the register array. lowkey obsessed with how simple that is 😭💜

🌈 SEE ALSO 🌈

the source of truth lives right here, in the kernel file:

./drivers/net/ethernet/intel/igb/e1000_mac.c

and here's the whole friend group — every single one, no skipping, we love a complete list:

like genuinely that's a whole squad and they all ate 🔥🍓

ngl bestie, if you're here you're probably deep in the igb driver, and honestly? proud of you. go write that vfta. 🧚

mwah 💖 that's the page!! brought to you by ./drivers/net/ethernet/intel/igb and dated October 2026 — yes, the future, don't worry about it 🙈✨

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