sata_pmp_qc_...r_cmd_switch(9)

📦 version 7.3.1, in nixpkgs unstable

💅 sata_pmp_qc_...r_cmd_switch(9) 💅

okay so bestie, welcome to the Kernel API Manual ✨ — yes this is a real page, yes the title got cut off with ... in the middle, no we're not gonna fix it, that's just how it's printed, iykyk 🎀

🌸 NAME 🌸

sata_pmp_qc_defer_cmd_switch — literally the qc_defer hook for command switching PMP. that's it, that's the whole vibe 🦋

✨ SYNOPSIS ✨

int sata_pmp_qc_defer_cmd_switch (struct ata_queued_cmd *qc );

🎀 ARGUMENTS 🎀

  • qc — the ATA command in question 👀 like, the one we're deciding whether to hold back

💖 DESCRIPTION 💖

okay so here's the tea ☕ — a host that has command switching PMP support cannot issue commands to multiple links simultaneously. not "shouldn't", not "prefers not to" — cannot. it's giving one-at-a-time energy, fr fr 😭

LOCKING: spin_lock_irqsave(host lock) 🔒 — yes, that exact form, don't get cute with it

👑 RETURN 👑

ATA_DEFER_* if deferring is needed, 0 otherwise. 🫶 that's the whole decision tree, slay

🦋 SEE ALSO 🦋

Kernel file ./drivers/ata/libata-pmp.c — go read it, it's iconic 💜

and that's the page!! 🌈 mwah 💋 this one comes to you from ./drivers/ata, dated October 2026 — so like, future vibes only ⭐ go forth and defer responsibly, bestie 🧚‍♀️💅

📦 where this page comes from