bnxt_en: Add PHY loopback to ethtool self-test.

It is necessary to disable autoneg before enabling PHY loopback,
otherwise link won't come up.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan 2017-04-04 18:14:14 -04:00 • committed by David S. Miller
commit 91725d89b9