e1000_update...addr_list_vf(9)

📦 version 7.3.1, in nixpkgs unstable

💅 e1000_update_mc_addr_list_vf(9)

okay so bestie, welcome to the Kernel API Manual ✨ — this is the page for e1000_update_mc_addr_list_vf(9), and honestly? she's a little function with a big job. let's get into it 💖

🌸 NAME 🌸

e1000_update_mc_addr_list_vf — Update Multicast addresses 🦋

like, the multicast address updater. that's her. that's the whole vibe.

✨ SYNOPSIS ✨

void e1000_update_mc_addr_list_vf (struct e1000_hw *hw , u8
*mc_addr_list , u32 mc_addr_count , u32 rar_used_count , u32 rar_count
);

no return value, she just does the thing 💅 (that void up front is doing a lot of heavy lifting, ngl)

🎀 ARGUMENTS 🎀

  • hw — pointer to the HW structure 🫶 the main character, fr fr, everything hangs off this
  • mc_addr_list — array of multicast addresses to program 💖
  • mc_addr_count — number of multicast addresses to program 🌈 (yes, you gotta tell her how many, she's not a mind reader)
  • rar_used_count — the first RAR register free to program ⭐ like, "start here, bestie"
  • rar_count — total number of supported Receive Address Registers 👑 the full headcount

🔥 DESCRIPTION 🔥

So what does she actually do? She Updates the Receive Address Registers and Multicast Table Array ✨ both of them, at the same time, iconic behaviour.

heads up: The caller must have a packed mc_addr_list of multicast addresses. 🚨 so like, pack it before you call her, okay? she's not doing that for you.

and about that rar_count parameter — The parameter rar_count will usually be hw->mac.rar_entry_count 💜 unless there are workarounds that change this 🙈 so most of the time it's that, but sometimes the workarounds come in and switch it up. iykyk.

🦋 SEE ALSO 🦋

Kernel file ./drivers/net/ethernet/intel/igbvf/vf.c 📁

and the whole friend group 💅 — go say hi:

aaaand that's the page, bestie 🌸 mwah 💋 — this one's from ./drivers/net/ethernet/intel/i... and it's dated October 2026, filed under e1000_update...addr_list_vf(9) because apparently even kernel docs love an abbreviated filename. slay 🧚💜

📦 where this page comes from