Public bug reported:

[Impact]

Intel I210 NIC may show:
'igb: probe of 0000:07:00.0 failed with error -2'
Upon boot after power has been completely disconnected.

I was able to bisect it down to commit 2a3cdead8b408351fa1e3079b220fa331480ffbc
Upon further investigation it was determined that firmware may not properly 
initialize I347AT4_PAGE_SELECT causing the probe of an igb i210 NIC to fail. 

This also happens with the linux 4.9-rc4.

[Fix]

https://patchwork.ozlabs.org/patch/690464/
This patch adds an addition zeroing of this register during igb_get_phy_id to 
workaround this issue.

[Test Case]

Completely power down machine with intel igb 210 NIC. Power on and
ensure igb device is properly probed and initialized.

** Affects: linux (Ubuntu)
     Importance: Medium
     Assignee: Chris J Arges (arges)
         Status: In Progress

** Affects: linux (Ubuntu Xenial)
     Importance: Undecided
         Status: New

** Affects: linux (Ubuntu Yakkety)
     Importance: Undecided
         Status: New

** Also affects: linux (Ubuntu Yakkety)
   Importance: Undecided
       Status: New

** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1639810

Title:
  igb i210 probe of pci device failed with error -2

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