net: thunderx: workaround BGX TX Underflow issue
While it is not yet understood why a TX underflow can easily occur for SGMII interfaces resulting in a TX wedge. It has been found that disabling/re-enabling the LMAC resolves the issue. Signed-off-by: Tim Harvey <tharvey@gateworks.com> Reviewed-by: Robert Jones <rjones@gateworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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