Intel TigerLake NVMe vmd: Adding Support & Debugging a Patch
Neel Chauhan
neel at neelc.org
Thu Dec 31 02:14:40 UTC 2020
I have attached two files:
* pcidump.txt: A dump of `pciconf -lv`
* acpidump.txt: A dump of `acpidump`
Hope this can help.
-Neel
On 2020-12-30 17:21, Neel Chauhan wrote:
> To extend, I am getting an issue with `pci_read_device()` where it
> returns a `vid` (PCI Vendor ID) of 0xffff.
>
> This ends up returning "Cannot allocate dinfo!" from vmd.
>
> Log (via grep): https://imgur.com/a/tAmmY7i
>
> -Neel
>
> On 2020-12-30 16:38, Neel Chauhan wrote:
>> Hi Chuck,
>>
>> On 2020-12-30 10:04, Chuck Tuffli wrote:
>>> What is the output from
>>> # pciconf -rb pci0:0:14:0 0x40:0x48
>>
>> The output is:
>>
>> 01 00 00 00 01 2e 68 02 00
>>
>>> --chuck
>>
>> I was also able to stop kernel panics by adding:
>>
>> rman_fini(&sc->vmd_bus.rman);
>>
>> In the fail: statement in vmd_attach().
>>
>> But I still cannot detect the SSD.
>>
>> -Neel
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