Pyun YongHyeon dd936d524b Work around GMAC hardware hang bug.
It seems that valid pause frames(Tx flow control) cause GMAC to hang
such that it resulted in watchdog timeout. As a work around don't
flush Rx MAC FIFO if we've received pause frames.

Tested by:	Harald Schmalzbauer (h DOT schmalzbauer AT omnisec DOT de)
2007-04-25 01:20:31 +00:00
..
2007-04-25 01:17:44 +00:00