ata_sff_drain_fifo(9)

📦 version 7.3.1, in nixpkgs unstable

✨ ata_sff_drain_fifo ✨

okay so bestie, welcome to the Kernel API Manual 💖 this one's a lil function from the SFF controller corner of the kernel, and honestly it's giving "cleanup crew main character energy" 🧹✨

🌸 NAME 🌸

ata_sff_drain_fifo — the stock FIFO drain logic for SFF controllers, no cap 🫶

🦋 SYNOPSIS 🦋

void ata_sff_drain_fifo (struct ata_queued_cmd *qc );

literally one job, one argument, and it returns void because it's not here to report back, it's here to drain 💅

🎀 ARGUMENTS 🎀

  • qc — the command 💫 (yes, that's the whole description, she's a woman of few words and we respect it)

⭐ DESCRIPTION ⭐

okay so picture this: a command fails to complete 😭 and now there's stuck data just sitting there in the FIFO and in the device being all stubborn about it. ata_sff_drain_fifo drains the FIFO and the device of all that leftover mess 🚿

and like, why do we care? because in some cases this is necessary before a reset will recover the device — the reset literally can't do its thing until the junk is cleared out. so this is the pre-reset vibes check, fr fr 👑

👑 SEE ALSO 👑

bestie there are so many friends in this family, buckle up 🎢 all of these live in the kernel file ./drivers/ata/libata-sff.c:

like I said. a whole squad 🫶✨

ok and before I forget — this page lives under ./drivers/ata, and the version vibes are October 2026 📅 (that's the date stamped on the page, not me being delulu about the future 💀). mwah, bye bestie, go drain that fifo 💅🎀
📦 where this page comes from