e1000e: additional error handling on PHY register accesses

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PHY reads/writes via the MDIC register could potentially return results
from a previous PHY register access.  If that happens, the offset in the
returned results will be that of the previous access and if that is
different from the expected offset, log a debug message and error out.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

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Bruce Allan 2013-03-06 09:02:31 +00:00 • committed by Jeff Kirsher

parent 8b49a4c759

commit bb034512da

2 changed files with 13 additions and 0 deletions

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1

drivers/net/ethernet/intel/e1000e/defines.h

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12

drivers/net/ethernet/intel/e1000e/phy.c

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