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Re: [PATCH V4] PCI: Add Extended Tags quirk for Broadcom HT2100 Root Port

From Sinan Kaya <okaya@codeaurora.org>
Newsgroups linux.kernel
Subject Re: [PATCH V4] PCI: Add Extended Tags quirk for Broadcom HT2100 Root Port
Date 2017-07-12 14:20 +0200
Message-ID <u2oMy-88t-15@gated-at.bofh.it> (permalink)
References <u2h8m-39O-3@gated-at.bofh.it> <u2lEZ-5ZJ-5@gated-at.bofh.it> <u2mro-6xz-5@gated-at.bofh.it>
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On 7/12/2017 5:44 AM, Ethan Zhao wrote:
> The dmesg yelled "...Tag handling is broken" , but didn't say how it
> was handled, that is weird and confusing, just because there is no
> device under that bridge ?
> 
> How about move the messages together "...is broken, disable Extended tag..."

This was something requested by Bjorn to inform that user has a broken HW
when a quirk is matched.

The new code will disable extended tags only if it was enabled on endpoint
via power on reset value or via some broken BIOS.

It looks like we are not seeing any disabling message. This implies that
both the card and BIOS is good.

That's why, you are no longer seeing a disabling message on this system
and code is just not enabling extended tags.

-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.

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Thread

[PATCH V4] PCI: Add Extended Tags quirk for Broadcom HT2100 Root Port Sinan Kaya <okaya@codeaurora.org> - 2017-07-12 06:10 +0200
  Re: [PATCH V4] PCI: Add Extended Tags quirk for Broadcom HT2100  Root Port Wim ten Have <wim.ten.have@oracle.com> - 2017-07-12 11:00 +0200
    Re: [PATCH V4] PCI: Add Extended Tags quirk for Broadcom HT2100 Root Port Ethan Zhao <ethan.kernel@gmail.com> - 2017-07-12 11:50 +0200
      Re: [PATCH V4] PCI: Add Extended Tags quirk for Broadcom HT2100 Root  Port Sinan Kaya <okaya@codeaurora.org> - 2017-07-12 14:20 +0200
        Re: [PATCH V4] PCI: Add Extended Tags quirk for Broadcom HT2100 Root  Port Bjorn Helgaas <helgaas@kernel.org> - 2017-07-12 21:40 +0200
          Re: [PATCH V4] PCI: Add Extended Tags quirk for Broadcom HT2100 Root Port Ethan Zhao <ethan.kernel@gmail.com> - 2017-07-13 08:00 +0200
  Re: [PATCH V4] PCI: Add Extended Tags quirk for Broadcom HT2100 Root  Port Bjorn Helgaas <helgaas@kernel.org> - 2017-07-12 21:40 +0200

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