zfcp_dbf_hba_fsf_fces(9)

💅 zfcp_dbf_hba_fsf_fces(9) 💅

okay bestie, so this is a kernel API manual page — the Kernel API Manual one, specifically — and today's main character is zfcp_dbf_hba_fsf_fces, which is the trace event for fsf responses related to FC Endpoint Security (FCES). literally that's the whole NAME, no notes ✨

🌸 SYNOPSIS 🌸

void zfcp_dbf_hba_fsf_fces (char *tag , const struct zfcp_fsf_req *req ,
u64 wwpn , u32 fc_security_old , u32 fc_security_new );

that's the whole signature, keep it exactly like that, no cap 🫶

🎀 ARGUMENTS 🎀

• tag — the tag that tells you which kind of FC Endpoint Security event went down 👀 like, which flavor of situation are we logging here
• req — the request that got a response back. yes ma'am, we heard back from it 💌
• wwpn — the remote port, or ZFCP_DBF_INVALID_WWPN if there's no valid one, and that constant name is literal so don't be out here translating it 💅
• fc_security_old — the old FC Endpoint Security of the FCP device or connection 🕰️ the before pic
• fc_security_new — the new FC Endpoint Security of the FCP device or connection ✨ the glow-up pic

🦋 SEE ALSO 🦋

kernel file ./drivers/s390/scsi/zfcp_dbf.c (the source of truth, the mothership 🏠) and honestly the whole friend group:

• zfcp_dbf_hba_fsf_res(9)
• zfcp_dbf_hba_fsf_reqid(9)
• zfcp_dbf_hba_fsf_uss(9)
• zfcp_dbf_hba_uas(9)
• zfcp_dbf_hba_bit_err(9)
• zfcp_dbf_hba_def_err(9)
• zfcp_dbf_rec_trig(9)
• zfcp_dbf_rec_trig_lock(9)
• zfcp_dbf_rec_run_lvl(9)
• zfcp_dbf_rec_run(9)
• zfcp_dbf_rec_run_wka(9)
• zfcp_dbf_san_req(9)
• zfcp_dbf_san_res(9)
• zfcp_dbf_san_in_els(9)
• zfcp_dbf_scsi_common(9)
• zfcp_dbf_scsi_eh(9)
• zfcp_dbf_adapter_register(9)
• zfcp_dbf_adapter_unregister(9)

every single one of them, we did not skip a single bestie, periodt 👑

💀 reminder that this is a kernel API page, so the file path, the function signature, and every constant are exact — copy them character for character or the vibe check fails immediately

🌈 and that's the page!! signing off from ./drivers/s390/scsi, dated October 2026, still filed under zfcp_dbf_hba_fsf_fces(9) — stay slay, stay documented, iykyk 💖🎀