fc_block_scsi_eh(9)

📦 version 7.3.1, in nixpkgs unstable

✨ fc_block_scsi_eh(9) ✨

okay bestie, welcome to the Kernel API Manual — today's main character is fc_block_scsi_eh, and honestly? she's the friend who holds the door so nobody gets left behind 🚪💖

🌸 NAME 🌸

fc_block_scsi_eh — blocks the SCSI eh thread for a blocked fc_rport, no cap 🫶

🎀 SYNOPSIS 🎀

int fc_block_scsi_eh (struct scsi_cmnd *cmnd );

🦋 ARGUMENTS 🦋

  • cmnd — the SCSI command that scsi_eh is trying to recover. that's the one, that's the patient 🩺✨

💅 DESCRIPTION 💅

so here's the vibe: this routine can be called from a FC LLD scsi_eh callback. what it does is it blocks the scsi_eh thread until the fc_rport leaves FC_PORTSTATE_BLOCKED, or until the fast_io_fail_tmo fires — whichever comes first ⏳🔥

and why do we even need this? because otherwise scsi_eh would be out here failing recovery actions for blocked rports, which — and this is the important bit — would lead to offlined SCSI devices 😭 so yeah, this little block is lowkey doing the lord's work. no cap.

⭐ RETURN ⭐

  • 0 — the fc_rport left the state FC_PORTSTATE_BLOCKED 🎉 slay, we're so back.
  • FAST_IO_FAIL — fast_io_fail_tmo fired. this one should be passed back to scsi_eh, so don't just pocket it, bestie 🙈

🌈 SEE ALSO 🌈

Kernel file ./drivers/scsi/scsi_transport_fc.c

that's the whole roster, bestie — every single one of them, i counted, we don't skip entries in this house 💅

okay that's the page!! this lil icon lives in ./drivers/scsi and the version tag says October 2026 — so like, very much future-proofed aesthetic 💜✨ go forth and block those eh threads responsibly, mwah 🎀

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