i40e_dcbnl_get_perm_hw_addr(9)

📦 version 7.3.1, in nixpkgs unstable

💖 i40e_dcbnl_get_perm_hw_addr — a Kernel API Manual moment ✨

okay bestie, welcome to the Kernel API Manual page for i40e_dcbnl_get_perm_hw_addr(9) — yes that's a whole mouthful but we're gonna get through it together, i promise 🫶

🌸 NAME 🌸

i40e_dcbnl_get_perm_hw_addr — the MAC address that DCBx uses 💅

⭐ SYNOPSIS ⭐

void i40e_dcbnl_get_perm_hw_addr (struct net_device *dev , u8 *perm_addr );

like… that's literally it. two args, one void, zero drama ✨

🎀 ARGUMENTS 🎀

  • dev — the corresponding netdev 💖 the net device in question, the one we're talking about, the main character fr
  • perm_addr — a buffer, and it's where the MAC address gets stored 🦋 like it's a little container and we're filling it up, no biggie

🌈 DESCRIPTION 🌈

So what does this thing actually do, you ask? 👑

It returns the SAN MAC address that's used for LLDP exchange. That's it. That's the whole vibe. it gives "getter function that knows exactly what it is" and honestly? iconic 🔥

no cap, that's the entire description. short and slay 💅

💜 SEE ALSO 💜

bestie there are SO many siblings, buckle up 🎀 this function did not come into this world alone:

the kernel file it lives in (iykyk):

./drivers/net/ethernet/intel/i40e/i40e_dcb_nl.c

and the whole entire family tree, in the order the manual gives it:

like… thirty-four functions?? a whole friend group 😭 and every single one of them has a (9) after it, which i think is the little matching friendship bracelet of manpage sections 💀 slay

heads up bestie: these are cross-references, so if you're clicking around, that (9) is doing real work — it's pointing you at the kernel API section. don't lose it 🫶

🧚 sign-off 🧚

this little love letter came out of ./drivers/net/ethernet/intel/i40e and the manual's dated October 2026 — and the page is, of course, i40e_dcbnl_get_perm_hw_addr(9) itself, because the star of the show always gets top billing 💅✨ go get that SAN MAC address, bestie, you've got this 👑

📦 where this page comes from