zfcp_qdio_siosl(9)

💅 zfcp_qdio_siosl

okay so bestie, welcome to the Kernel API Manual ✨ this one's a tiny little function with main character energy — it's giving "small but crucial," no cap 🎀

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💖 NAME 💖

zfcp_qdio_siosl — trigger logging in the FCP channel 🔥

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✨ SYNOPSIS ✨

void zfcp_qdio_siosl (struct zfcp_adapter *adapter );

like, that's it. that's the whole call. iconic 🫶

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🦋 ARGUMENTS 🦋

• adapter — the zfcp_adapter where you wanna trigger the logging 💫 literally just tell it which one, bestie.

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🌸 DESCRIPTION 🌸

so here's the vibe: you call the cio siosl function to trigger hardware logging 🎀 that's the whole mission.

but wait — this wrapper function also sets a flag so that hardware logging only gets triggered once before going through qdio shutdown 👑 like, one and done, we're not doing reruns, periodt.

and ngl, the triggers are always run from qdio tasklet context, so no additional synchronization is necessary 😌 no locks, no stress, no "who touched what first" drama. the context already handled it for you 💅

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🌈 SEE ALSO 🌈

peep the kernel file ./drivers/s390/scsi/zfcp_qdio.c for the whole friend group 🧚 and obviously go say hi to:

• zfcp_qdio_sbals_from_sg(9)
• zfcp_qdio_sbal_get(9)
• zfcp_qdio_send(9)
• zfcp_qdio_allocate(9)
• zfcp_qdio_close(9)
• zfcp_qdio_open(9)

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and that's the page, bestie 🍓 brought to you by the fine folks over at ./drivers/s390/scsi, dated October 2026, and yeah — it's literally zfcp_qdio_siosl(9) 💜 slay 💅✨