pmcraid_queuecommand_lck(9)

📦 version 7.3.1, in nixpkgs unstable

🌸 NAME 🌸

okay bestie, so this whole page is about pmcraid_queuecommand_lck(9) from the Kernel API Manual — literally the function whose entire job is Queue a mid-layer request. that's it, that's the vibe ✨

💅 SYNOPSIS 💅

enum scsi_qc_status pmcraid_queuecommand_lck (struct scsi_cmnd *scsi_cmd
);

🎀 ARGUMENTS 🎀

  • scsi_cmd — the scsi command struct, aka the little parcel of a command you're handing over 🫶

🦋 DESCRIPTION 🦋

so here's the tea 🍓 — this function queues up a request that the mid-layer generated. the midlayer calls this routine while it's already inside host->lock, no cap.

and like, heads up: some of the functions that get called by queuecommand would use cmd block queue locks, specifically free_pool_lock and pending_pool_lock. just so you know the lock situation bestie, iykyk 🔥

Return value: 0 on success — slay 💖. then SCSI_MLQUEUE_DEVICE_BUSY if the device is busy 😭, and SCSI_MLQUEUE_HOST_BUSY if the host is busy 💀.

💜 SEE ALSO 💜

kernel file ./drivers/scsi/pmcraid.c — and honestly the whole extended family, main character energy every single one of them 👑:

and that's the page bb 💜 this one came out of ./drivers/scsi, dated October 2026 — go touch some kernel code, ily, bye 🧚✨

📦 where this page comes from