epf_ntb_cmd_handler(9)

📦 version 7.3.1, in nixpkgs unstable

💖 epf_ntb_cmd_handler — kernel API manual, bestie edition 💖

okay so like, this is epf_ntb_cmd_handler, and it lives in section 9 of the Kernel API Manual — that's the kernel-functions girlies ✨

🌸 NAME 🌸

epf_ntb_cmd_handler — the one that handles commands provided by the NTB HOST 🫶

✨ SYNOPSIS ✨

void epf_ntb_cmd_handler (struct work_struct *work );

🎀 ARGUMENTS 🎀

  • work — the work_struct for the epf_ntb_epc, periodt 💅

🦋 DESCRIPTION 🦋

so this is a workqueue function, right? it gets invoked for the two epf_ntb_epc periodically — literally once every 5ms — just to check if it has received any commands from the NTB HOST 👀 like a little vibe check every 5 milliseconds, no cap.

and what can the HOST send? glad you asked bestie 😌 it can send commands to:

  • configure doorbell 🔔
  • configure memory window 🪟
  • update link status 🔗

that's the whole menu fr fr. iconic behaviour tbh 👑

ngl, this one is short but she is essential — the epc would be absolutely clueless without her checking in every 5ms 😭

💜 SEE ALSO 💜

the kernel file for this one lives at ./drivers/pci/endpoint/functions/pci-epf-vntb.c — go read her, she's the main character 🌈

and the whole friend group 🫶:

and that's the whole page, bestie, you ate that 🍓✨ this one comes from ./drivers/pci/endpoint/functions and it's dated October 2026 — so like, futuristic queen energy 👑💜 mwah, see you in the next manpage 🧚‍♀️💖

📦 where this page comes from