epf_ntb_link_up(9)

📦 version 7.3.1, in nixpkgs unstable

okay so bestie, welcome to the epf_ntb_link_up(9) page, straight out of the Kernel API Manual ✨ this one is a lil function that literally just yells "THE LINK IS UP!!!" at your Virtual Host, and honestly? iconic behavior 💅

🎀 NAME 🎀

epf_ntb_link_up — Raise link_up interrupt to Virtual Host (VHOST) 🫶

like yes, that's the whole job. it raises the link_up interrupt to VHOST. slay.

✨ SYNOPSIS ✨

int epf_ntb_link_up (struct epf_ntb *ntb , bool link_up );

that's it. that's the whole vibe check. 🌸

🦋 ARGUMENTS 🦋

  • ntb — the NTB device that facilitates communication between HOST and VHOST. like, this is the actual hardware-friendship-bracelet that lets our two hosts talk 💖
  • link_up — a true or false indicating whether the Link is UP or Down 🎀 (true = up, false = down, no cap)

🔥 DESCRIPTION 🔥

okay so here's the tea ☕ — once the NTB function in HOST invokes ntb_link_enable, this NTB function driver will trigger a link event to VHOST. that's it, that's the whole flow. main character energy from start to finish 👑

🌈 RETURN 🌈

  • Zero for success 🥳
  • an error code in case of failure 😭

ngl a very straightforward return situation. we love to see it.

💜 SEE ALSO 💜

girl, there is a WHOLE friend group here, let me introduce you 🫶:

Kernel file ./drivers/pci/endpoint/functions/pci-epf-vntb.c — the mothership 👑

like, the entire squad 💅 go read them, iykyk.

and that's a wrap bestie!! 🎀 this lil page lives in ./drivers/pci/endpoint/functions, dated October 2026, and it's forever signed epf_ntb_link_up(9) — no cap, periodt 💖✨🦋

📦 where this page comes from