lpfc_used_rpi_show(9)

📦 version 7.3.1, in nixpkgs unstable

✨ NAME ✨

lpfc_used_rpi_show — Return maximum rpi minus available rpi. This lil page is from the Kernel API Manual, and the star is literally lpfc_used_rpi_show(9) 💅.

🌸 SYNOPSIS 🌸

ssize_t lpfc_used_rpi_show (struct device *dev , struct device_attribute
       *attr , char *buf );

🎀 ARGUMENTS 🎀

  • dev — class device that is converted into a Scsi_host. bestie, that's the whole vibe 🫶
  • attr — device attribute, not used. lowkey just vibing in the parameter list 😌
  • buf — containing the used rpi count in decimal or "Unknown". yes, literally that string 👀

🦋 DESCRIPTION 🦋

okay so it calls lpfc_get_hba_info asking for just the mrpi and arpi counts. periodt.

If lpfc_get_hba_info returns zero (failure 😭), the buffer text is set to "Unknown" and the buffer length is returned, therefore the caller must check for "Unknown" in the buffer to detect a failure. no cap, that check is mandatory.

fr fr: a zero return is the failure path, and "Unknown" is your red flag in the buffer 🚩

⭐ RETURN ⭐

size of formatted string. that's it, that's the return ✨

💖 SEE ALSO 💖

kernel file: ./drivers/scsi/lpfc/lpfc_attr.c — and here's the whole crew, bestie:

mwah 💋 this page is brought to you by ./drivers/scsi/lpfc, dated October 2026, and it's literally the lpfc_used_rpi_show(9) manual page. periodt ✨

📦 where this page comes from