- Some mxge nics may store the serial number in the SN2 field of the
EEPROM. These will also have an SN=0 field, so parse the SN2 field,
and give it precedence.
- Skip MXGEFW_CMD_UNALIGNED_TEST on mxge nics which do not require it.
This saves roughly 10ms per port at device attach time.
Sponsored by: Myricom
MFC After: 7 days
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