mpi3mr_probe(9)

📦 version 7.3.1, in nixpkgs unstable

💖 NAME 💖

mpi3mr_probe — the PCI probe callback, aka the moment your driver first slides into the DMs of a shiny new PCI device 🫶

(this one lives in section 9 of the Kernel API Manual, bestie — kernel internals only, no userland shenanigans)

✨ SYNOPSIS ✨

int mpi3mr_probe (struct pci_dev *pdev , const struct pci_device_id *id
);

🎀 ARGUMENTS 🎀

  • pdev — the PCI device instance. your actual main character device, the one we're probing 💅
  • id — the PCI device ID details. all the matching info about which device we're looking at ✨

🌸 DESCRIPTION 🌸

Okay so this is the controller initialization routine. mpi3mr_probe is literally where the controller gets its life together 🔥

First thing it does: a vibe check on the controller's security status. And listen — if that status comes back invalid or tampered, probe just returns without initializing the controller. No init, no nothing, we're out 🙈 (yes, that's the dramatic part, do not skip it).

Otherwise? Full glow-up sequence, in order:

  • allocate a per-adapter instance through shost_priv 🎀
  • initialize controller-specific data structures
  • initialize the controller hardware
  • add shost to the SCSI subsystem, and now it's officially part of the group chat 👑

⭐ RETURN ⭐

0 on success, non-zero on failure. that's it, that's the whole return contract 💀

🦋 SEE ALSO 🦋

Kernel file: ./drivers/scsi/mpi3mr/mpi3mr_os.c

And now the friend group, no cap — every single one of them, we don't leave a single bestie behind 💜

okay that's the whole page, go read the actual source bestie ily 💖

source path: ./drivers/scsi/mpi3mr · dated October 2026 · that's the mpi3mr_probe(9) page, periodt 🎀✨

📦 where this page comes from