tree 9fbca2f38512934f9b1a5a5fc23960bf19af777a
parent 92dc87697e6a71675a9e9eec04ebecd8cf4837a3
author Sunil Goutham <sgoutham@cavium.com> 1440926956 +0300
committer David S. Miller <davem@davemloft.net> 1440996852 -0700

net: thunderx: Support for internal loopback mode

Support for setting VF's corresponding BGX LMAC in internal
loopback mode. This mode can be used for verifying basic HW
functionality such as packet I/O, RX checksum validation,
CQ/RBDR interrupts, stats e.t.c. Useful when DUT has no external
network connectivity.

'loopback' mode can be enabled or disabled via ethtool.

Note: This feature is not supported when no of VFs enabled are
morethan no of physical interfaces i.e active BGX LMACs

Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>