Re: [PATCH 00/24] Thunderbolt security levels and NVM firmware upgrade

From	"mika.westerberg@linux.intel.com" <mika.westerberg@linux.intel.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH 00/24] Thunderbolt security levels and NVM firmware upgrade
Date	2017-05-25 10:10 +0200
Message-ID	<tKW0i-5FH-11@gated-at.bofh.it> (permalink)
References	(5 earlier) <tKlWP-6kH-37@gated-at.bofh.it> <tKCuC-1DS-5@gated-at.bofh.it> <tKJPr-6hN-11@gated-at.bofh.it> <tKKit-6rO-5@gated-at.bofh.it> <tKVnA-5du-15@gated-at.bofh.it>
Organization	Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo

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On Thu, May 25, 2017 at 10:20:10AM +0300, mika.westerberg@linux.intel.com wrote:
> On Wed, May 24, 2017 at 07:32:45PM +0000, Jamet, Michael wrote:
> > I talked to our BIOS expert today. Here is his advice to debugging further:
> > 
> > It looks like something may have been wrong from system (BIOS, FW, others...) perspective.
> > On reboot need to enter EFI shell and check resources of 
> > pci 0000:01:00.0: bridge.
> > At the EFI shell, this bridge MUST be either configured or absent.
> > 
> > I would start this way, once we have this info, we may circle back to
> > him and look into next debugging step.
> 
> Thanks, I'll try this today.


This is the contents dumped directly from EFI shell when a device is
connected. It seems that the vendor_id/device_id is 0xffff but the rest
of the config seems to be present (although not fully configured):

  PCI Segment 00 Bus 01 Device 00 Func 00 [EFI 0001000000]
  00000000: FF FF FF FF 00 00 10 00-00 00 04 06 00 00 01 00  *................*
  00000010: 00 00 00 00 00 00 00 00-00 00 00 00 01 01 00 00  *................*
  00000020: 00 00 00 00 01 00 01 00-00 00 00 00 00 00 00 00  *................*
  00000030: 00 00 00 00 80 00 00 00-00 00 00 00 FF 01 00 00  *................*
  00000040: 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  *................*
  00000050: 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  *................*
  00000060: 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  *................*
  00000070: 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  *................*
  00000080: 01 88 C3 FF 08 00 00 00-05 AC 80 00 00 00 00 00  *................*
  00000090: 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  *................*
  000000A0: 00 00 00 00 00 00 00 00-00 00 00 00 0D C0 00 00  *................*
  000000B0: 22 22 11 11 00 00 00 00-00 00 00 00 00 00 00 00  *""..............*
  000000C0: 10 00 52 00 20 80 E8 07-10 28 10 00 43 5C 45 00  *..R. ....(..C\E.*
  000000D0: 00 00 23 10 00 00 00 00-00 00 00 00 00 00 00 00  *..#.............*
  000000E0: 00 00 00 00 00 08 00 00-00 00 00 00 0E 00 00 00  *................*
  000000F0: 03 00 1E 00 00 00 00 00-00 00 00 00 00 00 00 00  *................*

I wonder how Linux manages to find the device if vendor_id/device_id
reads 0xffff?

Thread

[PATCH 00/24] Thunderbolt security levels and NVM firmware upgrade Mika Westerberg <mika.westerberg@linux.intel.com> - 2017-05-18 16:50 +0200
  [PATCH 09/24] thunderbolt: Do not fail if DROM data CRC32 is invalid Mika Westerberg <mika.westerberg@linux.intel.com> - 2017-05-18 16:50 +0200
  [PATCH 16/24] thunderbolt: Add Thunderbolt 3 PCI IDs Mika Westerberg <mika.westerberg@linux.intel.com> - 2017-05-18 16:50 +0200
  [PATCH 03/24] thunderbolt: Do not warn about newer DROM versions Mika Westerberg <mika.westerberg@linux.intel.com> - 2017-05-18 16:50 +0200
  [PATCH 13/24] thunderbolt: Expose make_header() to other files Mika Westerberg <mika.westerberg@linux.intel.com> - 2017-05-18 16:50 +0200
  [PATCH 12/24] thunderbolt: Expose get_route() to other files Mika Westerberg <mika.westerberg@linux.intel.com> - 2017-05-18 16:50 +0200
  [PATCH 24/24] MAINTAINERS: Add maintainers for Thunderbolt driver Mika Westerberg <mika.westerberg@linux.intel.com> - 2017-05-18 16:50 +0200
  [PATCH 08/24] thunderbolt: Fail switch adding operation if reading DROM fails Mika Westerberg <mika.westerberg@linux.intel.com> - 2017-05-18 16:50 +0200
  Re: [PATCH 00/24] Thunderbolt security levels and NVM firmware  upgrade Mika Westerberg <mika.westerberg@linux.intel.com> - 2017-05-19 19:30 +0200
    RE: [PATCH 00/24] Thunderbolt security levels and NVM firmware  upgrade <Mario.Limonciello@dell.com> - 2017-05-19 20:00 +0200
      Re: [PATCH 00/24] Thunderbolt security levels and NVM firmware  upgrade Mika Westerberg <mika.westerberg@linux.intel.com> - 2017-05-20 10:30 +0200
        Re: [PATCH 00/24] Thunderbolt security levels and NVM firmware  upgrade Mika Westerberg <mika.westerberg@linux.intel.com> - 2017-05-22 13:40 +0200
          RE: [PATCH 00/24] Thunderbolt security levels and NVM firmware  upgrade <Mario.Limonciello@dell.com> - 2017-05-22 22:10 +0200
            RE: [PATCH 00/24] Thunderbolt security levels and NVM firmware  upgrade "Bernat, Yehezkel" <yehezkel.bernat@intel.com> - 2017-05-22 22:20 +0200
              RE: [PATCH 00/24] Thunderbolt security levels and NVM firmware  upgrade <Mario.Limonciello@dell.com> - 2017-05-23 02:00 +0200
            Re: [PATCH 00/24] Thunderbolt security levels and NVM firmware  upgrade Mika Westerberg <mika.westerberg@linux.intel.com> - 2017-05-22 23:00 +0200
              Re: [PATCH 00/24] Thunderbolt security levels and NVM firmware  upgrade Mika Westerberg <mika.westerberg@linux.intel.com> - 2017-05-24 13:20 +0200
                RE: [PATCH 00/24] Thunderbolt security levels and NVM firmware  upgrade <Mario.Limonciello@dell.com> - 2017-05-24 21:10 +0200
                RE: [PATCH 00/24] Thunderbolt security levels and NVM firmware  upgrade "Jamet, Michael" <michael.jamet@intel.com> - 2017-05-24 21:40 +0200
                Re: [PATCH 00/24] Thunderbolt security levels and NVM firmware  upgrade "mika.westerberg@linux.intel.com" <mika.westerberg@linux.intel.com> - 2017-05-25 09:30 +0200
                Re: [PATCH 00/24] Thunderbolt security levels and NVM firmware  upgrade "mika.westerberg@linux.intel.com" <mika.westerberg@linux.intel.com> - 2017-05-25 10:10 +0200
                Re: [PATCH 00/24] Thunderbolt security levels and NVM firmware  upgrade "mika.westerberg@linux.intel.com" <mika.westerberg@linux.intel.com> - 2017-05-25 14:10 +0200
                Re: [PATCH 00/24] Thunderbolt security levels and NVM firmware  upgrade Mika Westerberg <mika.westerberg@linux.intel.com> - 2017-05-25 09:20 +0200
    Re: [PATCH 00/24] Thunderbolt security levels and NVM firmware  upgrade Mika Westerberg <mika.westerberg@linux.intel.com> - 2017-05-19 20:10 +0200
  RE: [PATCH 00/24] Thunderbolt security levels and NVM firmware  upgrade "Levy, Amir (Jer)" <amir.jer.levy@intel.com> - 2017-05-20 11:20 +0200
    Re: [PATCH 00/24] Thunderbolt security levels and NVM firmware  upgrade "mika.westerberg@linux.intel.com" <mika.westerberg@linux.intel.com> - 2017-05-21 10:10 +0200
  Re: [PATCH 00/24] Thunderbolt security levels and NVM firmware  upgrade Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2017-05-23 15:30 +0200

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