aer_root_reset(9)

💅 aer_root_reset(9) 🎀

okay so bestie, welcome to the Kernel API Manual, section 9 — yes we're in kernel-functions land, pull up a chair 🦋 this one's short but she's important.

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✨ NAME ✨

aer_root_reset — reset the Root Port hierarchy, an RCEC, or an RCiEP 🌸

Like, she resets things. Hierarchy things. Root Port things. RCEC things. RCiEP things. It's giving "clean slate era" ✨

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🫶 SYNOPSIS 🫶

pci_ers_result_t aer_root_reset (struct pci_dev *dev );

that's it. that's the whole signature. pci_ers_result_t goes in, and pci_ers_result_t comes out — she returns a pci_ers_result_t and takes exactly one arg, no cap 💅

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🌈 ARGUMENTS 🌈

• dev — a pointer to a Root Port, RCEC, or RCiEP. that's the whole list, bestie, don't try to hand her anything else 🙈

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💖 DESCRIPTION 💖

So basically 👑 — this function gets invoked by the Port Bus driver when performing reset. That's the entire vibe. Port Bus driver says "we're doing a reset," and aer_root_reset is the one who shows up. main character energy fr fr 🔥

She resets the Root Port hierarchy, the RCEC, or the RCiEP — whichever one that dev pointer is pointing at. and yes, "reset" here means reset, not "politely ask to restart" 💀

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🦋 SEE ALSO 🦋

Kernel file ./drivers/pci/pcie/aer.c — go read the source, iykyk 🍓 and also all of these icons:

• enable_ecrc_checking(9)
• disable_ecrc_checking(9)
• pcie_set_ecrc_checking(9)
• pcie_ecrc_get_policy(9)
• pci_aer_raw_clear_status(9)
• add_error_device(9)
• is_error_source(9)
• find_source_device(9)
• pci_aer_unmask_internal_errors(9)
• pci_aer_handle_error(9)
• aer_get_device_error_info(9)
• aer_isr_one_error_type(9)
• aer_isr_one_error(9)
• aer_isr(9)
• aer_irq(9)
• aer_enable_rootport(9)
• aer_disable_rootport(9)
• aer_remove(9)
• aer_probe(9)
• pcie_aer_init(9)

literally the whole AER friend group 💜 go say hi.

no warnings, no bugs, no exit-status drama on this page — she's a short queen and she knows it 💅

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and that's the page, bestie ✨🫶 this cutie lives in ./drivers/pci/pcie and ships with the Kernel API Manual — datestamped October 2026 because we stay current 🌸 mwah, go reset something responsibly 💖🎀