sci_controller_reset(9)

💅 sci_controller_reset(9) — or, the "nuke the controller" button

okay bestie, so this one lives in the Kernel API Manual and it's called sci_controller_reset. Strap in, because this one is not a gentle little function. 🫶

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✨ NAME ✨

sci_controller_reset — this method will reset the supplied core controller regardless of the state of said controller. And listen, this operation is considered destructive. Like, destructive destructive. In other words: all current operations are wiped out. No IO completions for outstanding devices occur. Outstanding IO requests are not aborted or completed at the actual remote device. so like… yeah. 💀

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🎀 SYNOPSIS 🎀

enum sci_status sci_controller_reset (struct isci_host *ihost );

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🌸 ARGUMENTS 🌸

• ihost — the handle to the controller object to reset. that's your victim, bestie 🎯

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🦋 DESCRIPTION 🦋

this one indicates if the controller reset method succeeded or failed in some way, which is honestly the bare minimum we can ask of it:

• SCI_SUCCESS — if the reset operation successfully started ✨
• SCI_FATAL_ERROR — if the controller reset operation is unable to complete 😭

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🔥 SEE ALSO 🔥

• Kernel file ./drivers/scsi/isci/host.c
• isci_host_start_complete(9)
• sci_controller_get_suggested_start_timeout(9)
• sci_controller_start_next_phy(9)
• isci_host_completion_routine(9)
• sci_controller_stop(9)
• isci_host_deinit(9)
• sci_controller_set_interrupt_coalescence(9)
• isci_host_init(9)
• sci_controller_allocate_remote_node_context(9)
• sci_controller_complete_io(9)
• sci_controller_start_task(9)

real talk though: this is the nuclear option, gorl. no IO completions, nothing cleaned up at the remote device. know what you're doing before you call it. 👑

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that's the whole page, no cap — brought to you by ./drivers/scsi/isci, dated October 2026, and of course sci_controller_reset(9) itself, which remains iconic 🌈