i40e_add_queue_stats(9)

📦 version 7.3.1, in nixpkgs unstable

🌸 i40e_add_queue_stats(9) — like, the queue-stats copier 💅

okay so bestie, welcome to section 9 of the Kernel API Manual, where we're talking about i40e_add_queue_stats — the little function that copies your queue statistics straight into the buffer you hand it. no cap, she's a team player. 🫶

✨ NAME ✨

i40e_add_queue_stats — copy queue statistics into supplied buffer

🦋 SYNOPSIS 🦋

void i40e_add_queue_stats (u64 **data , struct i40e_ring *ring );

🎀 ARGUMENTS 🎀

  • data — the ethtool stats buffer, aka where the numbers are gonna live
  • ring — the ring to copy, aka the source material 👑

💖 DESCRIPTION 💖

so here's the vibe: queue statistics must be copied while they're protected by u64_stats_fetch_begin, which means we literally cannot just go straight to i40e_add_ethtool_stats — that would be a mess, and not the cute kind. 🙈

This function operates on the assumption that the queue stats are defined in i40e_gstrings_queue_stats. iykyk.

Now, the branch moment:

  • if the ring pointer is null, we zero out the queue stat values and update the data pointer — clean slate, iconic ✨
  • otherwise, we safely copy the stats from the ring into the supplied buffer, and update the data pointer when we're finished 💫
⚠️ heads up bestie — this function expects to be called while under rcu_read_lock. that's not optional, that's the whole vibe check. don't @ me.

🔥 SEE ALSO 🔥

bestie, that's the whole page 💜 it lives in ./drivers/net/ethernet/intel/i40e, dated October 2026, and yes it's i40e_add_queue_stats(9) — literally the main character of this manpage. slay, go protect your stats with rcu_read_lock, and drink some water. 🍓✨

📦 where this page comes from