PCIe regression with DRA7xx in 4.4-rc1

[Kishon Vijay Abraham I]

Hi,

On Tuesday 24 November 2015 05:44 PM, Jisheng Zhang wrote:
> 
> 
> On Tue, 24 Nov 2015 17:31:07 +0530
> Kishon Vijay Abraham I wrote:
> 
>> Hi,
>>
>> I'm seeing a regression with <d1b9cf31252e905ad563b9e863fd4470f6c3dd1c>("PCI:
>> designware: Make driver arch-agnostic").
>>
>> Logs using a SATA PCIe card [1]. The PCIe card enumerates fine but after that I
>> observe "ata3.00: qc timeout (cmd 0xec), ata3.00: failed to IDENTIFY (I/O
>> error, err_mask=0x4)"
>>
>> Logs using a Ethenet PCIe card [2]. Again here the PCIe card enumerates fine
>> but when I give ifconfig up, it fails.
>>
>> If I just revert commit <d1b9cf31252e905ad563b9e863fd4470f6c3dd1c>, the PCIe
>> cards starts to work fine again
> 
> FYI, maybe the patch can fix the regression.
> http://lists.infradead.org/pipermail/linux-arm-kernel/2015-November/387362.html

yes, it fixed.

Thanks
Kishon

> 
>>
>> Logs using a SATA PCIe card [3]. Here the KINGSTON SSD gets detected fine.
>> Logs using a Ethernet PCIe card [4]. I'm able to do ping tests now.
>>
>> Actually I'm not able to find any obvious problems with the patch and the irq
>> number and the memory resource also looks fine. Any idea what could be the problem?
>>
>> [1] -> http://pastebin.ubuntu.com/13491456/
>> [2] -> http://pastebin.ubuntu.com/13491526/
>>
>> [3] -> http://pastebin.ubuntu.com/13491658/
>> [4] -> http://pastebin.ubuntu.com/13491593/
>>
>> Thanks
>> Kishon
>>
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>