sci_port_con...ct_dummy_rnc(9)

💅 sci_port_con...ct_dummy_rnc(9) — a Kernel API Manual moment ✨

okay so bestie, welcome to the kernel API manual, this one's literally sci_port_con...ct_dummy_rnc(9) and it's giving "tiny function, big workaround energy" 🎀 buckle up.

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🌸 NAME 🌸

sci_port_construct_dummy_rnc — create dummy rnc for si workaround 💖

(yeah, "rnc" is doing a lot of heavy lifting in that sentence, we'll get to it)

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✨ SYNOPSIS ✨

void sci_port_construct_dummy_rnc (struct isci_port *iport , u16 rni );

that's it. that's the whole signature. she's void, she takes two things, she does her little job 🫶

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🦋 ARGUMENTS 🦋

• iport — the logical port on which we need to create the remote node context. that's your main character, the port where the whole thing goes down 💅
• rni — the remote node index for this remote node context. it's the index, it identifies which remote node context we're talking about, no cap 🔥

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🌈 DESCRIPTION 🌈

so this routine, right? it will construct a dummy remote node context data structure — like, a fake one, a decoy, a little stand-in guy 🧚

and then that structure gets posted to the hardware to work around a scheduler error in the hardware. yes, the hardware has a scheduler error, and the fix is literally "here's a fake node context, please calm down" 😭 iconic honestly.

no cap: this exists purely as a workaround. the dummy structure is the whole entire point — don't be out here thinking it's real data 🙈

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👑 SEE ALSO 👑

kernel file ./drivers/scsi/isci/port.c plus the whole friend group 💜:

• sci_port_get_properties(9)
• isci_port_link_down(9)
• isci_port_hard_reset_complete(9)
• sci_port_is_phy_mask_valid(9)
• sci_port_general_link_up_handler(9)
• sci_port_is_wide(9)
• sci_port_link_detected(9)
• sci_port_post_dummy_request(9)
• sci_port_abort_dummy_request(9)
• sci_port_resume_port_task_scheduler(9)
• sci_port_ready_substate_operational_exit(9)
• sci_port_add_phy(9)
• sci_port_remove_phy(9)

like, the whole port.c crew showed up. go read them, they're all part of the same lore ⭐

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and that's the page!! mwah 💋 this lil manual page came from ./drivers/scsi/isci and it's dated October 2026 — so yeah, she's future-dated, she's mysterious, she ate 🍓💖