devl_param_...it_value_get(9)

📦 version 7.3.1, in nixpkgs unstable

💅 devl_param_...it_value_get(9) — from the Kernel API Manual ✨

Okay bestie, buckle up, because this one is a little niche but honestly kind of iconic once you get it. It's giving "kernel internals but make it readable." 🦋

🌸 NAME 🌸

devl_param_driverinit_value_get — literally just: get the configuration parameter value for driver initializing. That's it. That's the whole vibe. 💖

⭐ SYNOPSIS ⭐

int devl_param_driverinit_value_get (struct devlink *devlink , u32
param_id , union devlink_param_value *val );

No cap, there it is. 👑

🎀 ARGUMENTS 🎀

  • devlink — the devlink. Yeah. It's the devlink. Immaculate, no notes. 💀
  • param_id — the parameter ID, i.e. which parameter we're talking about. 🏷️
  • val — a pointer where the value of the parameter gets stored, specifically in driverinit configuration mode. So this is where the tea (the value) lands. 🍓

✨ DESCRIPTION ✨

So here's the sitch: your driver should use this function to grab the driverinit configuration for initialization after a reload command. Like, reload happens, and then you come back and ask "hey what was my config again?" and this function answers. 🫶

⚠️ Okay now the important part, don't scroll past this — the lockless call of this function relies on the driver to maintain the following basic sane behavior. This is a trust fall, bestie. 😭
  1. The driver ensures a call to this function cannot race with registering/unregistering the parameter with the same parameter ID. No racing. We don't do that here. 🚫🏁
  2. The driver ensures a call to this function cannot race with a devl_param_driverinit_value_set call with the same parameter ID. Same energy. Keep it clean. 💅
  3. The driver ensures a call to this function cannot race with a reload operation. And listen — if the driver is not able to comply, it has to take the devlink->lock while calling this. That's not optional, that's the rule. 🔒

🔥 SEE ALSO 🔥

Go read those too, iykyk. 📚💜

🌈 And that's the whole page, bestie! This little gem lives in ./net/devlink, dated October 2026, and it's page devl_param_...it_value_get(9) of the Kernel API Manual — go forth and get those parameter values responsibly. 💖✨🎀

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