Date: Thu, 31 Dec 2020 14:28:07 -0800 From: John Baldwin <jhb@FreeBSD.org> To: Neel Chauhan <neel@neelc.org>, freebsd-current@freebsd.org Subject: Re: PCIe Root Port/Bus Not Detected in VMD Message-ID: <40b48007-5e60-cd87-0242-15239869d370@FreeBSD.org> In-Reply-To: <ba5b92e33d83fe5c5a235537203a1c09@neelc.org> References: <aa9632b47ad2173154fb5f11456f531d@neelc.org> <ba5b92e33d83fe5c5a235537203a1c09@neelc.org>
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On 12/30/20 9:45 PM, Neel Chauhan wrote: > For reference, I am attaching the `pciconf -lv` and `acpidump -dt` > dumps. Hmm, the acpidump doesn't have the -d contents, only the -t, and PCI bridges are generally enumerated in the the -d part. These PCI bridges aren't enumerated in ACPI though, so that probably doesn't matter. The dinfo getting 0xffff means that somehow the way the PCI config access is being handled for the child devices in vmd.c is wrong for this bridge. You might have to spelunk in the Linux driver to see if the logic in vmd_read_config() and vmd_write_config() is correct. -- -- John Baldwinhome | help
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