lpfc_issue_hb_mbox(9)

📦 version 7.3.1, in nixpkgs unstable

💅 lpfc_issue_hb_mbox(9) — straight outta the Kernel API Manual

okay bestie, settle in 💖 you're reading a page from the Kernel API Manual, section 9, and today's main character is lpfc_issue_hb_mbox — the literal heart-beat of the lpfc driver. no cap, this one's a baddie. let's get into it 🫶

💖 NAME

lpfc_issue_hb_mbox — Issues heart-beat mailbox command 💓

like, that's her job. that's what she does. iconic behaviour honestly.

✨ SYNOPSIS

int lpfc_issue_hb_mbox (struct lpfc_hba *phba );

she returns an int, she takes exactly one thing, and she does not have time for your extra arguments 💅

🌸 ARGUMENTS

  • phba — pointer to lpfc hba data structure. that's your whole hba situation right there, bestie 🎀

🦋 DESCRIPTION

so here's the tea ☕ — if a HB mbox is not already in progress, this routine will:

  1. allocate a LPFC_MBOXQ_t 🎁
  2. populate it with a MBX_HEARTBEAT (0x31) command 💓
  3. and issue it 🚀

and the HBA_HBEAT_INP flag? that's the little "occupied" sign on the door — it means the command is in progress 🔥 so if you see that flag up, she's already on it and won't double-book.

lowkey important: the whole thing is conditional on no HB mbox already being in progress. no double heartbeats, we're not messy here 🙈

💫 SEE ALSO

first up, the kernel file herself: ./drivers/scsi/lpfc/lpfc_init.c 👑

and now… the group chat. genuinely everyone is here. it's giving family reunion 😭🫶

yeah. that's the whole roster. she knows everyone, she's connected 💅✨

and that's the page!! 🎀 our source and version is straight out of ./drivers/scsi/lpfc, dated October 2026, and the page itself is lpfc_issue_hb_mbox(9) — go forth and heartbeat responsibly, bestie 💖🦋 slay 🫶

📦 where this page comes from