Re: pci->pcie bridge issue: kernel unable to find a free I/O port range.

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On Thu, Jan 9, 2014 at 8:41 PM, `VL <vl.homutov@xxxxxxxxx> wrote:
> On 10.01.2014 00:17, Yinghai Lu wrote:
>>
>> On Wed, Jan 8, 2014 at 9:14 PM, `VL <vl.homutov@xxxxxxxxx> wrote:
>>>
>>> I've put all logs here: http://inspert.ru/pci/
>>>>
>>>> CONFIG_PCI_DEBUG=y
>>>>
>>>> and boot with "debug ignore_loglevel initcall_debug"?
>>
>> Jan  9 08:51:49 10 pci 0000:04:00.0: BAR 7: assigned [io  0x2000-0x4fff]
>> Jan  9 08:51:49 10 pci 0000:05:01.0: BAR 7: assigned [io  0x2000-0x2fff]
>> Jan  9 08:51:49 10 pci 0000:06:00.0: BAR 7: assigned [io  0x2000-0x2fff]
>> Jan  9 08:51:49 10 pci 0000:07:00.0: BAR 3: assigned [io  0x2000-0x203f]
>> Jan  9 08:51:49 10 pci 0000:07:00.0: BAR 3: error updating (0x002001
>> != 0xffffffff)
>> Jan  9 08:51:49 10 pci 0000:07:00.0: BAR 3: set to [io  0x2000-0x203f]
>> (PCI address [0x2000-0x203f])
>> Jan  9 08:51:49 10 pci 0000:07:00.0: BAR 0: assigned [io  0x2040-0x205f]
>> Jan  9 08:51:49 10 pci 0000:07:00.0: BAR 0: error updating (0x002041
>> != 0xffffffff)
>> Jan  9 08:51:49 10 pci 0000:07:00.0: BAR 0: set to [io  0x2040-0x205f]
>> (PCI address [0x2040-0x205f])
>> Jan  9 08:51:49 10 pci 0000:07:00.0: BAR 1: assigned [io  0x2060-0x206f]
>> Jan  9 08:51:49 10 pci 0000:07:00.0: BAR 1: error updating (0x002061
>> != 0xffffffff)
>> Jan  9 08:51:49 10 pci 0000:07:00.0: BAR 1: set to [io  0x2060-0x206f]
>> (PCI address [0x2060-0x206f])
>> Jan  9 08:51:49 10 pci 0000:07:00.0: BAR 2: assigned [io  0x2070-0x207f]
>> Jan  9 08:51:49 10 pci 0000:07:00.0: BAR 2: error updating (0x002071
>> != 0xffffffff)
>> Jan  9 08:51:49 10 pci 0000:07:00.0: BAR 2: set to [io  0x2070-0x207f]
>> (PCI address [0x2070-0x207f])
>> Jan  9 08:51:49 10 pci 0000:06:00.0: PCI bridge to [bus 07]
>> Jan  9 08:51:49 10 pci 0000:06:00.0:   bridge window [io  0x2000-0x2fff]
>> Jan  9 08:51:49 10 pci 0000:05:01.0: PCI bridge to [bus 06-07]
>> Jan  9 08:51:49 10 pci 0000:05:01.0:   bridge window [io  0x2000-0x2fff]
>> Jan  9 08:51:49 10 pci 0000:0d:00.0: BAR 0: set to [io  0x4020-0x4027]
>> (PCI address [0x4020-0x4027])
>> Jan  9 08:51:49 10 pci 0000:0d:00.0: BAR 2: assigned [io  0x4028-0x402f]
>> Jan  9 08:51:49 10 pci 0000:0d:00.0: BAR 3: assigned [io  0x4034-0x4037]
>> Jan  9 08:51:49 10 pci 0000:0d:00.0: BAR 3: set to [io  0x4034-0x4037]
>> (PCI address [0x4034-0x4037])
>> Jan  9 08:51:49 10 pci 0000:05:09.0: PCI bridge to [bus 0d]
>> Jan  9 08:51:49 10 pci 0000:05:09.0:   bridge window [io  0x4000-0x4fff]
>> Jan  9 08:51:49 10 pci 0000:05:09.0:   bridge window [mem
>> 0xf7600000-0xf76fffff]
>> Jan  9 08:51:49 10 pci 0000:04:00.0: PCI bridge to [bus 05-0d]
>> Jan  9 08:51:49 10 pci 0000:04:00.0:   bridge window [io  0x2000-0x4fff]
>> Jan  9 08:51:49 10 pci 0000:04:00.0:   bridge window [mem
>> 0xf7200000-0xf77fffff]
>> Jan  9 08:51:49 10 pci 0000:04:00.0:   bridge window [mem
>> 0xf0000000-0xf00fffff 64bit pref]
>> Jan  9 08:51:49 10 pci 0000:00:1c.3: PCI bridge to [bus 04-0d]
>> Jan  9 08:51:49 10 pci 0000:00:1c.3:   bridge window [io  0x2000-0x4fff]
>> Jan  9 08:51:49 10 pci 0000:00:1c.3:   bridge window [mem
>> 0xf7200000-0xf78fffff]
>> Jan  9 08:51:49 10 pci 0000:00:1c.3:   bridge window [mem
>> 0xf0000000-0xf00fffff 64bit pref]
>>
>> The realloc code does reassign big range to the devices.
>>
>> but one device refuse to change bar to new assigned vaule, or it is
>> read-only?
>>
>> Jan  9 08:51:49 10 pci 0000:07:00.0: BAR 3: assigned [io  0x2000-0x203f]
>> Jan  9 08:51:49 10 pci 0000:07:00.0: BAR 3: error updating (0x002001
>> != 0xffffffff)
>> Jan  9 08:51:49 10 pci 0000:07:00.0: BAR 3: set to [io  0x2000-0x203f]
>> (PCI address [0x2000-0x203f])
>> Jan  9 08:51:49 10 pci 0000:07:00.0: BAR 0: assigned [io  0x2040-0x205f]
>> Jan  9 08:51:49 10 pci 0000:07:00.0: BAR 0: error updating (0x002041
>> != 0xffffffff)
>> Jan  9 08:51:49 10 pci 0000:07:00.0: BAR 0: set to [io  0x2040-0x205f]
>> (PCI address [0x2040-0x205f])
>> Jan  9 08:51:49 10 pci 0000:07:00.0: BAR 1: assigned [io  0x2060-0x206f]
>> Jan  9 08:51:49 10 pci 0000:07:00.0: BAR 1: error updating (0x002061
>> != 0xffffffff)
>> Jan  9 08:51:49 10 pci 0000:07:00.0: BAR 1: set to [io  0x2060-0x206f]
>> (PCI address [0x2060-0x206f])
>> Jan  9 08:51:49 10 pci 0000:07:00.0: BAR 2: assigned [io  0x2070-0x207f]
>> Jan  9 08:51:49 10 pci 0000:07:00.0: BAR 2: error updating (0x002071
>> != 0xffffffff)
>> Jan  9 08:51:49 10 pci 0000:07:00.0: BAR 2: set to [io  0x2070-0x207f]
>> (PCI address [0x2070-0x207f])
>>
>>
>> also BIOS does not assign any vaule to it:
>>
>> Jan  9 08:51:49 10 pci 0000:07:00.0: reg 0x10: [io  0x0000-0x001f]
>> Jan  9 08:51:49 10 pci 0000:07:00.0: reg 0x18: [io  0x0000-0x000f]
>> Jan  9 08:51:49 10 pci 0000:07:00.0: reg 0x1c: [io  0x0000-0x003f]
>>
>> It is strange 05:01.0/07:00.0 does not work, but 05:09.0/0d:00.0 does
>> work.
>>
>> Can you boot with "pci=earlydump"?
>>
>> Yinghai
>
> Here it is: http://inspert.ru/pci/netconsole-realloc-earlydump.txt

there is no 07:00.0 in the print out.
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