On Wed, May 01, 2024 at 07:51:18AM -0700, Keith Busch wrote: > After a link reset, the Broadcom / LSI PEX890xx PCIe Gen 5 Switch in synth > mode will temporarily insert a fake place-holder device, 1000 02b2, before > the link is actually active for the expected downstream device. Confirm > the device's identifier matches what we expect before moving forward. > Otherwise, the pciehp driver may unmask hotplug notifications before > the link is actually active, which triggers an undesired device removal. This won't work if the device was hot-swapped with a different one and thus correctly returns a different Vendor/Device ID. We'd wait for the device to report the previous device's Vendor/Device ID, which doesn't make sense. It would be possible to raise d3cold_delay in struct pci_dev for children of affected Broadcom switches. Have you considered that as a potential solution? Thanks, Lukas
