lpfc_rscn_payload_check(9)

📦 version 7.3.1, in nixpkgs unstable

💅 lpfc_rscn_payload_check(9) — the vibe check for pending RSCNs

okay so bestie, we're in the Kernel API Manual today and the page is lpfc_rscn_payload_check(9). Yes the name is a mouthful, yes it's iconic, and yes it does exactly one (1) thing but it does it well. Let's get into it 🫶

✨ SYNOPSIS ✨

int lpfc_rscn_payload_check (struct lpfc_vport *vport , uint32_t did );

it returns an int, it takes two args, it's giving "small function, big responsibility" energy 💅

🎀 ARGUMENTS 🎀

  • vport — pointer to a host virtual N_Port data structure. like, the vport in question. she's the main character here.
  • did — remote destination port identifier. the specific port we're snooping about.

🌸 DESCRIPTION 🌸

so what does this actually do? this routine checks whether there is any pending Registration State Configuration Notification (RSCN) to a did on vport. that's it. that's the whole assignment. and honestly? she ate. ✨

think of it as a little vibes-based background check on your destination port ID — is there an RSCN queued up for this did or not? 🔥

Return code (read carefully bestie, this is the whole tea ☕):

  • None zero — the did matched with a pending rscn. slay, there's something waiting for you 👑
  • 0 — not able to match did with a pending rscn. nothing pending, carry on, no notes 💀
ngl please actually check the return value, like the whole point is the return value 😭

🦋 SEE ALSO 🦋

the kernel file in question lives right here, mwah:

  • ./drivers/scsi/lpfc/lpfc_els.c

and now, the friend group. this is a long list and every single one of them is invited to the group chat 💖 — fr fr, no cap, all of them:

💜 one last thing, bestie

this little masterpiece comes from ./drivers/scsi/lpfc, stamped October 2026 — and it's filed under the Kernel API Manual as, you guessed it, lpfc_rscn_payload_check(9). go check that return value. mwah 💋✨🌸

📦 where this page comes from