ice_devlink_...aps_snapshot(9)

📦 version 7.3.1, in nixpkgs unstable

💅 NAME 💅

ok so this is ice_devlink_devcaps_snapshot — bestie, it literally captures a snapshot of device capabilities ✨ (like, the whole point is grabbing a pic of what the firmware says the device can do).

this page is from the kernel API manual, section 9, and yes the title up top is spelled ice_devlink_...aps_snapshot(9) because somebody's terminal was being dramatic 💀 — the real one is ice_devlink_devcaps_snapshot.

🦋 SYNOPSIS 🦋

int ice_devlink_devcaps_snapshot (struct devlink *devlink , const struct
       devlink_region_ops *ops , struct netlink_ext_ack *extack , u8 **data );

🎀 ARGUMENTS 🎀

  • devlink — the devlink instance 🫶 like, the actual object we're doing the thing on.
  • ops — the devlink region being snapshotted 👑 this is the one getting its picture taken.
  • extack — the extended ACK response structure 💌 (the lil messenger that carries extra details back to userspace).
  • data — on exit it points to the snapshot data buffer 🌸 so like, when the function's done, this baby is pointing at your fresh data buffer.

✨ DESCRIPTION ✨

okay so here's the vibe: this function gets called in response to DEVLINK_CMD_REGION_TRIGGER for the device-caps devlink region 🔥 it captures a snapshot of the device capabilities reported by firmware — no cap, that's literally its whole job 💅

it returns zero on success, and it updates the data pointer ✅ (yes bestie, the pointer update is part of the deal).

on failure it returns a non-zero error code 😭 so like, check the return value, always, periodt.

🌈 SEE ALSO 🌈

the kernel file this lives in is ./drivers/net/ethernet/intel/ice/devlink/devlink.c — go read it, iykyk 🧚

and here's the whole friend group, all section 9, all iconic 💜

lowkey reminder: success gives you 0 and a shiny updated data pointer, anything non-zero means nope, something went sideways 🙈

and that's the page, bestie 🍓 this one's straight out of ./drivers/net/ethernet/intel/i..., dated October 2026, filed under ice_devlink_...aps_snapshot(9) — mwah, go snapshot those capabilities 💖🎀

📦 where this page comes from