ice_acquire_global_cfg_lock(9)

📦 version 7.3.1, in nixpkgs unstable

💅 ice_acquire_global_cfg_lock(9) 💅

okay so bestie, welcome to the Kernel API Manual ✨ this page is ice_acquire_global_cfg_lock(9) and it's giving "small function, big responsibilities" energy, fr fr.

🌸 NAME 🌸

ice_acquire_global_cfg_lock — and ngl, the source page's one-liner description is literally blank after the dash. no cap, nothing there. so the name is the whole personality 🫶

✨ SYNOPSIS ✨

int ice_acquire_global_cfg_lock (struct ice_hw *hw , enum
       ice_aq_res_access_type access );

that's the whole vibe, and yes the spacing is exactly like that in the source, we do not editorialize 💅

🎀 ARGUMENTS 🎀

  • hw — pointer to the HW structure 💖 like, the actual hardware you're about to be messing with.
  • access — the access type, aka read or write. that's the whole menu, bestie: read or write 🔥

🦋 DESCRIPTION 🦋

so what does this icon do? It requests ownership of the global config lock for reading or writing of the package. main character lock behavior, honestly 👑

here's the part you actually need to remember, so pay attention while I do my lip gloss: when you're attempting to obtain write access, the caller must check for these two return values 👇

  • 0 — means the caller has acquired the global config lock and can perform writing of the package. slay, you own it, go off 💅
  • -EALREADY — indicates another driver has already written the package or has found that no update was necessary; in this case, the caller can just skip performing any update of the package. like, the work is done, no need to double-text 🙈
⚠️ lowkey important: this is only about the write path. write access = you must check both 0 and -EALREADY. do not skip the vibe check on your return values or you will simply be wrong 💀

🌈 SEE ALSO 🌈

Kernel file ./drivers/net/ethernet/intel/ice/ice_ddp.c — that's the home base 🏠

and now, the group chat roster. this list is LONG and I respect it, so here's every single one of them, no skipping, periodt 🫶

like I said. long list. iconic of them though 💜

🧚 sign-off 🧚

this whole thing lives over in ./drivers/net/ethernet/intel/ice, and the page itself is stamped October 2026 ⭐ that's the source/version + date tea, delivered. ok bye bestie, go check your return values 💖🎀🦋

📦 where this page comes from