Hey Minho,

It has also been mentioned that this may be an issue with your PCIe connection. 
 So could you also provide the output from 'lspci -vvv'.

Thanks,
-Don Skidmore <[email protected]>

> -----Original Message-----
> From: Skidmore, Donald C
> Sent: Thursday, May 02, 2013 7:20 AM
> To: 'mhban'; Kirsher, Jeffrey T
> Cc: [email protected]; Brandeburg, Jesse
> Subject: RE: [E1000-devel] Intel 10GbE NIC eeprom read error
> 
> Hi Minho,
> 
> It sounds like your NVM isn't correctly set up.  I'm just the ixgbe driver 
> owner
> so don't configure eeprom's myself, but I'll see what I can find out or find
> someone to point you at.  When you purchased the x520 LOM (I'm assuming
> your developing a LOM system) weren't you provide a dev starter kit that
> contained a eeprom imagine?
> 
> It might be helpful if you could dump the eeprom and send it to me along
> with the output from 'ethtool -i ethX'.
> 
> At least I can say that you do have the correct data sheet 82599 == X520. :)
> 
> Thanks,
> -Don Skidmore <[email protected]>
> 
> > -----Original Message-----
> > From: mhban [mailto:[email protected]]
> > Sent: Thursday, May 02, 2013 12:09 AM
> > To: Kirsher, Jeffrey T
> > Cc: [email protected]; Brandeburg, Jesse
> > Subject: [E1000-devel] Intel 10GbE NIC eeprom read error
> >
> > Dear maintainer,
> >
> > I'm developing device which is based on ARM processor and the
> > processor supports PCI Express root-port.
> > I'm trying to install Intel X520-SR2 adapter on this device(Linux) but
> > there is problem when ixgbe driver probe device.
> > Here is brief system configuration.
> >
> >     Processor : ARM SoC (Cortex-A15, ARMv7)
> >     Adapter : Intel® ETHERNET SERVER ADAPTER X520-SR2
> >             (/w Intel DUAL RATE 1G/10G SFP+ SR : AFBR-703SDZ-IN2)
> >     OS : Linux Kernel 3.9.0-rc4
> >
> > I attached console log. (DEBUG definition added to driver to turn on
> > additional message) In the log, I noticed some Eeprom log,
> >
> >     [   10.430000] ixgbe 0000:01:00.0 (unregistered net_device): Eeprom
> > params: type = 1, size = 0, address bits: 16
> >
> > So I checked code below, and found (with hw debugger) not only EEC but
> > also all other registers were filed with 0xffffffff
> >
> >     [ drivers/net/ethernet/intel/ixgbe/ixgbe_common.c ]
> >     s32 ixgbe_init_eeprom_params_generic(struct ixgbe_hw *hw)
> >             ..
> >             eec = IXGBE_READ_REG(hw, IXGBE_EEC)
> >
> > It seemed to me there was problem on reading Eeprom but I couldn't go
> > further because I have no idea what is this Eeprom and how it could be
> read.
> > Please shed some light on this and give me any clue where can I start
> > debug from.
> > I have datasheet of 82599 (Intel Website) but don't have X520 adapter
> > datasheet or user-manual.
> > I would appreciate if you allow me to receive such document.
> >
> > Best regards,
> > Minho Ban
> >
> > SAMSUNG Electronics, Co., Ltd.
> > (Office) +82-31-301-8489  (Mobile) +82-10-8725-8864

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