Hi,

adding PCI folks.
Here is the story:

* Wzyboy has a Lenovo laptop with _OSC control *not* granted
* L1 Active is enabled
* kernel: 3.12.0
* Nic is PCIe (Gen2 but not sure...)

At some random point, the driver loses access to the NIC: all readl
operation return 0xff.
Even lspci returns 0xff:

03:00.0 Network controller: Intel Corporation Wireless 7260 (rev ff)
00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
10: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
20: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
30: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff

here is the output of lspci *before* the issue hits:

03:00.0 Network controller: Intel Corporation Wireless 7260 (rev 6b)
00: 86 80 b2 08 06 04 10 00 6b 00 80 02 10 00 00 00
10: 04 00 40 f0 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 86 80 62 c2
30: 00 00 00 00 c8 00 00 00 00 00 00 00 09 01 00 00

have you any idea of what we can do to understand what it going wrong here?

Thanks

On 11/06/2013 09:12 AM, wzyboy wrote:

2013/11/6 Grumbach, Emmanuel [off-list ref]:

quoted

Wait - you mean that after the bug occurred before you rebooted, lspci -xxx show all 00?
I can see 0xff here.
Anyway - this is very bad... checking with HW guys...

Sorry, that's my typo. They are all 0xff... (I don't know what do they
mean but it look bad...)

Thanks for your effort! I'm waiting for good news from you and HW guys. :-)