lpfc_board_mode_store(9)

📦 version 7.3.1, in nixpkgs unstable

💅 lpfc_board_mode_store(9) — group-chat edition

okay so this little icon is from the Kernel API Manual, and we are about to make lpfc_board_mode_store(9) make sense. no cap, bestie, we're keeping every detail. 🫶

✨ NAME ✨

lpfc_board_mode_store — Puts the hba in online, offline, warm or error state. that's the whole assignment: hba board mode goes into one of those four states. iconic behavior honestly. 👑

🌸 SYNOPSIS 🌸

ssize_t lpfc_board_mode_store (struct device *dev , struct
device_attribute *attr , const char *buf , size_t count );

copy it exactly, bestie — no autocorrect, no “fixing” the spacing. 💖

💅 ARGUMENTS 💅

  • dev — class device that is converted into a Scsi_host. yes ma'am, that's the device-to-Scsi_host pipeline.
  • attr — device attribute, not used. it's literally just vibing in the signature. 🙈
  • buf — containing one of the strings "online", "offline", "warm" or "error". those are the four valid strings, periodt.
  • count — unused variable. not invited to the main character arc, but still in the function signature. 💀

🔥 RETURN 🔥

here's the tea on what comes back:

  • -EACCES if enable hba reset not enabled
  • -EINVAL if the buffer does not contain a valid string (see above)
  • -EIO if lpfc_workq_post_event or lpfc_do_offline fails
  • buf length greater than zero indicates success

so yeah: valid string + happy path = success vibe. invalid string or failure = sad little negative errno. 😭

🦋 SEE ALSO 🦋

Kernel file: ./drivers/scsi/lpfc/lpfc_attr.c

and now the whole iconic lpfc cinematic universe, no skips, no cap:

with love from the source/version ./drivers/scsi/lpfc and the October 2026 date — mwah 💋✨

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