i40e_detect_recover_hung(9)

📦 version 7.3.1, in nixpkgs unstable

💅 i40e_detect_recover_hung 💅

okay so this is the Kernel API Manual page for i40e_detect_recover_hung, and bestie, it's a whole little baddie of a function 🎀 the manual name is literally right there in the title so you already know what we're doing — let's get into it ✨

🌸 NAME 🌸

i40e_detect_recover_hung — literally the function whose whole job is detecting and recovering hung_queues 💀 no cap, that's the name, that's the job, periodt.

🦋 SYNOPSIS 🦋

void i40e_detect_recover_hung (struct i40e_pf *pf );

that's it. that's the whole signature. she's void, she takes one pointer, she's iconic 🫶

💖 ARGUMENTS 💖

  • pf — pointer to the PF struct. that's the one and only thing you pass in, bestie. the whole PF, handed over like a lil bouquet 🌷

✨ DESCRIPTION ✨

okay so picture this: the LAN VSI has a netdev, and that netdev has TX queues. that's the setup, that's the lore 👑

what this function does is go check each of those TX queues, one by one, to see if any of them are hung 😭 like a vibe check but for queues, fr fr.

if it finds one that's hung, it triggers recovery by issuing a SW interrupt 🔥 that's the slay. that's the whole move. detect the hung queue, hit it with the software interrupt, and let recovery do its thing.

so yeah: LAN VSI → netdev → TX queues → check each one for being hung → issue SW interrupt to trigger recovery. the pipeline ate and left absolutely no crumbs 💅

👑 SEE ALSO 👑

the kernel file we're repping here is ./drivers/net/ethernet/intel/i40e/i40e_txrx.c — go say hi 💜 and then there's the friend group, the whole crew, every single one of them, no skips, no skips, we love a full roster:

that's the whole group chat, everybody got invited, nobody left on read 💌

lowkey reminder bestie: this page is filed under ./drivers/net/ethernet/intel/i40e, dated October 2026, and it's a Kernel API Manual entry for i40e_detect_recover_hung(9). that's the sign-off, mwah 😘💅✨
📦 where this page comes from