lpfc_els_flush_rscn(9)

📦 version 7.3.1, in nixpkgs unstable

💅 lpfc_els_flush_rscn — kernel API manual, but make it make sense

okay so bestie, you found a (9) page, which means we're deep in kernel-internals territory — this one lives in the lpfc_els_flush_rscn(9) section of the Kernel API Manual. grab a strawberry drink 🍓 and let's go.

✨ NAME ✨

lpfc_els_flush_rscn — the clean-up girly. it tidies up any rscn activities chillin' with a vport. no cap, that's literally the whole job.

🎀 SYNOPSIS 🎀

void lpfc_els_flush_rscn (struct lpfc_vport *vport );

she returns nothing (void) and takes exactly one thing. low maintenance, iconic.

🦋 ARGUMENTS 🦋

  • vport — a pointer to a host virtual N_Port data structure. that's the whole vibe. it's your vport and she's the main character of this function.

🌸 DESCRIPTION 🌸

so this routine cleans up any Registration State Change Notification (RSCN) activity that's hanging around with a vport. think of it as the friend who comes over after the party and quietly handles the mess 🧹✨

now here's the part you gotta remember for the exam, bestie: the fc_rscn_flush flag of the vport, together with host_lock, is what's used to prevent multiple threads from trying to access the RSCN array on the same vport at the same time. it's giving "only one person in the bathroom at a time" energy 🙈 it's a locking situation, and the locking situation is not optional.

fr fr, don't be out here poking the RSCN array on a vport without respecting that flag + lock combo. that's the whole safety mechanism.

👑 SEE ALSO 👑

Kernel file ./drivers/scsi/lpfc/lpfc_els.c, plus the entire extended friend group:

like, that's the entire group chat 😭 every single one of them, tagged and accounted for.

that's the whole page, bestie 💖 this icon came from ./drivers/scsi/lpfc, dated October 2026, and she answers to lpfc_els_flush_rscn(9) — periodt. 🫶✨

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