Messages in this thread | | | Date | Mon, 14 Nov 2016 15:03:19 -0600 | From | Bjorn Helgaas <> | Subject | Re: [PATCH 5/5] PCI: Balance ports to avoid ACS errata on Pericom switches |
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On Wed, Oct 26, 2016 at 12:01:40PM -0600, Alex Williamson wrote: > As described in the included code comment, this quirk is intended to > work around an errata in a variety of Pericom 4-lane, 3 and 4 port > PCIe 2.0 switches. The switches advertise ACS capabilities, but the > P2P Request Redirection support includes an errata that PCI_ACS_RR > effectively doesn't work and results in transactions being queued and > not delivered within the PCIe switch. The errata has no planned > hardware fix.
Is there a published erratum we can reference here? It'd be really nice to have a URL.
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