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78272bbab8
There is a hardware errata in some revisions of the 82574 that needs to be worked around in the driver by setting a register bit at init. If this bit is not set A0 versions of the 82574 can generate tx hangs. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>