Re: firmware-iwlwifi: Wireless AC 7265 lacks D3cold support

["Limonciello, Mario" <mario.limonciello@amd.com>]

On 8/14/2023 11:56 AM, Juno Computers USA wrote:
> Hi,
> 
> I can provide some logs. Should I do it with pcie_port_pm=off or without?
> 

You could do it with both, just make it clear when you add the 
attachment description to the kernel bugzilla which logs are which.

Also; if you try my patch series please make sure you test without that 
parameter and indicate which logs contain it.

> On Aug 14 2023, at 12:41 pm, Limonciello, Mario 
> <mario.limonciello@amd.com> wrote:
> 
> 
> 
>     On 8/14/2023 11:35 AM, Bjorn Helgaas wrote:
>      > [+cc Mario, linux-pm]
>      >
>      > On Sun, Aug 13, 2023 at 03:33:21PM +0000, Greenman, Gregory wrote:
>      >> On Fri, 2023-08-11 at 15:34 -0400, Juno Computers USA wrote:
>      >>> Any updates on this?
>      >
>      > D3cold support has been a problem area, and there are some changes in
>      > progress [1] that could be related.
> 
>     Yeah; no harm in at least trying this series. I'd love another data
>     point with it.
> 
>      >
>      > Could you possibly collect the complete dmesg logs (with a recent
>      > upstream kernel, e.g., v6.4, if possible)? And the output of
>      > "sudo lspci -vv"? And the contents of /sys/firmware/acpi/tables/?
>      > You can attach them to the Debian bug report if that's convenient for
>      > you.
>      >
> 
>     Yes this could be related but it will come down to
>     1) Whether the root ports are considered power manageable.
>     2) The system uses S0ix or not.
> 
>     whether the series could help as it stands today.
> 
>     Please CC me into any kernel bugzilla that you open against a mainline
>     or stable kernel and can capture the lspci output, the dmesg and
>     acpidump and I'll look at it.
> 
>      > Bjorn
>      >
>      > [1]
>     https://lore.kernel.org/r/20230809185453.40916-1-mario.limonciello@amd.com
> 
>     BTW - Bjorn, can I have comments on the last patch in this series? I
>     have fixes ready locally for everything in the earlier patches that Andy
>     gave feedback but I was hoping for some feedback on the very last patch
>     before I sent out a v12.
> 
>     Thanks!
> 
>      >
>      >>> On Aug 3 2023, at 8:01 am, Juno Computers USA
>     <usa@junocomputers.com> wrote:
>      >>>> Dear Maintainer,
>      >>>>
>      >>>> If D3Cold is enabled from BIOS the tablet boots without Wifi.
>      >>>> The only two ways to enable wifi support is either by disabling
>      >>>> D3Cold from BIOS (not ideal) or adding pcie_port_pm=off to grub
>      >>>>
>      >>>> [   12.681303] iwlwifi 0000:01:00.0: Detected Intel(R) Dual
>     Band Wireless AC 7265, REV=0x210
>      >>>>
>      >>>> This is needed for our new Juno Tab 2
>      >>>>
>      >>>> https://junocomputers.com/us/product/juno-tab-2/
>      >>>>
>      >>>> I also filed this under Debian bug-tracker.
>      >>>>
>      >>>> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1036633
>      >>>> Thanks,
>      >>>>
>      >>>> Giovanni Caligaris
>      >>>> Juno Computers USA
>      >>>> P: (215) 509-5472
>      >>>> W: https://junocomputers.com/us
>      >>
>      >> This device is very old and actually already EOL, so I'll not be
>      >> able to get any support for this internally. D3 works fine with this
>      >> NIC on standard, off the shelf laptops, so I'd guess that the probem
>      >> could be rooted in the tablets' PCIe hardware or maybe the BIOS
>      >> itself.
>