bnxt_en: Add external loopback test to ethtool selftest.

Add code to detect firmware support for external loopback and the extra
test entry for external loopback.

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 2018-08-05 16:51:48 -04:00 • committed by David S. Miller
commit 55fd0cf320
3 changed files with 32 additions and 6 deletions