i40e_change_mtu(9)

📦 version 7.3.1, in nixpkgs unstable

✨ i40e_change_mtu — the Kernel API Manual glow-up ✨

okay so bestie, we're in the kernel API manual for i40e_change_mtu(9) and honestly? it's a whole vibe. this is the NDO callback that changes the Maximum Transfer Unit. short page, but we're gonna make it iconic 💅

🌸 SYNOPSIS 🌸

int i40e_change_mtu (struct net_device *netdev , int new_mtu );

literally just two args and an int return, no cap 🫶

🎀 ARGUMENTS 🎀

  • netdev — the network interface device structure. your fave little netdev bestie, the one this callback is doing the MTU glow-up on ✨
  • new_mtu — the new value for maximum frame size. the new number, the new lewk, the new era 💖

🦋 DESCRIPTION 🦋

Returns 0 on success, negative on failure.

that's it. that's the whole description. honestly? queen behavior. no lore, no side quests, no hidden caveats — just 0 when it slays and a negative number when it doesn't 😭

ngl bestie this one's a real "read the returns and move on" situation — but the fact that it says negative on failure means you should check it, not just vibe past it 🙈

💜 SEE ALSO 💜

okay this is the part where the page goes absolutely feral. the Kernel file lives at ./drivers/net/ethernet/intel/i40e/i40e_main.c and then it just... keeps going. and going. and going. we do not skip a single one, bestie — every last (9) reference is coming with us 🔥

fr fr that's the whole friend group and every single one of them showed up 💀💖

🌈 a lil sign-off 🌈

this page is serving from ./drivers/net/ethernet/intel/i40e, dated October 2026, and it's all about i40e_change_mtu(9) — go check your return value, bestie, and slay ✨👑

periodt. 🎀

📦 where this page comes from