idpf_send_set_rss_lut_msg(9)

📦 version 7.3.1, in nixpkgs unstable

💅 idpf_send_set_rss_lut_msg — Kernel API Manual ✨

okay so bestie, welcome to the Kernel API Manual entry for idpf_send_set_rss_lut_msg(9) — yes that's the whole name, we don't do nicknames here 🎀

🌸 NAME 🌸

idpf_send_set_rss_lut_msg — literally: send the virtchnl set RSS lut message 💌

✨ SYNOPSIS ✨

int idpf_send_set_rss_lut_msg (struct idpf_adapter *adapter , struct
       idpf_rss_data *rss_data , u32 vport_id );

🫶 ARGUMENTS 🫶

  • adapter — the adapter pointer, bestie. it's the thing you use to actually send the virtchnl message 📨
  • rss_data — pointer to the RSS key and lut info. that's where the goods live 🍓
  • vport_id — the vport identifier, used while you're preparing the virtchnl message. it's giving "which vport is this for" energy 👑

💖 DESCRIPTION 💖

okay so here's the tea ☕ — when rxhash is disabled, the RSS LUT gets configured with zeros. literally all zeros, no cap.

but when rxhash is enabled, the LUT values stored in the driver's soft copy are the ones used to set up the HW. the way that soft copy is the main character here 😭🔥

🌈 RETURN 🌈

  • 0 on success 🎉
  • negative on failure 💀

🦋 SEE ALSO 🦋

the kernel file lives at ./drivers/net/ethernet/intel/idpf/idpf_virtchnl.c — go look, iykyk 📁

and here's the whole friend group, fr fr 👯‍♀️:

🧚 and that's the whole page, bestie. go forth and set those RSS LUTs 💜

signing off from the kernel file ./drivers/net/ethernet/intel/idpf — October 2026 edition, and yes, this page is still called idpf_send_set_rss_lut_msg(9) 😌💅

📦 where this page comes from