Ordering Dell XPS 13 9310 to test QCA6390

[Kalle Valo]

wi nk <wink at technolu.st> writes:

>> I got the XPS 13 9310 now and it indeed had AX500. But it also has an
>> updated BIOS:
>>
>> [    0.000000] DMI: Dell Inc. XPS 13 9310/0MRT12, BIOS 1.1.4 11/23/2020
>>
>> And with that I can get 32 MSI vectors:
>>
>> [    2.758219] ath11k_pci 0000:56:00.0: WARNING: ath11k PCI support is experimental!
>> [ 2.758778] ath11k_pci 0000:56:00.0: BAR 0: assigned [mem
>> 0x8c300000-0x8c3fffff 64bit]
>> [    2.758797] ath11k_pci 0000:56:00.0: enabling device (0000 -> 0002)
>> [    2.759086] ath11k_pci 0000:56:00.0: MSI vectors: 32
>> [    3.208447] ath11k_pci 0000:56:00.0: qmi req mem_seg[0] 0x3f000000 3522560 1
>> [    3.208449] ath11k_pci 0000:56:00.0: qmi req mem_seg[1] 0x3f500000 884736 4
>> [ 3.215355] ath11k_pci 0000:56:00.0: chip_id 0x0 chip_family 0xb
>> board_id 0xff soc_id 0xffffffff
>> [ 3.215358] ath11k_pci 0000:56:00.0: fw_version 0x101c06cc
>> fw_build_timestamp 2020-06-24 19:50 fw_build_id
>
>   I did see the updated BIOS from a few weeks ago, but I've been a
> little hesitant to update since I wasn't sure what would happen or if
> I could downgrade.

Makes sense, better to be careful.

> So to confirm, the new BIOS is allowing the driver to obtain all 32
> msi vectors removing the need for the single MSI patching? Does the
> MHI / M2 behavior also change to work properly?

I have not tested these yet as I only did a quick 10 minute test. I was
offline over two weeks so I have a lot of catching up to do, but will
get back to you in next few days on these. My plan is to also test this
new BIOS with the official 5.10 release from Linus (tag v5.10).

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