From ea4b4d7fc1065165874c27b8add252e04d104137 Mon Sep 17 00:00:00 2001 From: Igor Russkikh Date: Thu, 7 Nov 2019 22:41:58 +0000 Subject: net: atlantic: loopback tests via private flags Here we add a number of ethtool private flags to allow enabling various loopbacks on HW. Thats useful for verification and bringup works. Signed-off-by: Igor Russkikh Signed-off-by: David S. Miller --- .../device_drivers/aquantia/atlantic.txt | 25 ++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'Documentation/networking') diff --git a/Documentation/networking/device_drivers/aquantia/atlantic.txt b/Documentation/networking/device_drivers/aquantia/atlantic.txt index d235cbaeccc6..cf3e88ca885e 100644 --- a/Documentation/networking/device_drivers/aquantia/atlantic.txt +++ b/Documentation/networking/device_drivers/aquantia/atlantic.txt @@ -325,6 +325,31 @@ Supported ethtool options Example: ethtool -N eth0 flow-type udp4 action 0 loc 32 + Private flags (testing) + --------------------------------- + + Atlantic driver supports private flags for hardware custom features: + + $ ethtool --show-priv-flags ethX + + Private flags for ethX: + DMASystemLoopback : off + PKTSystemLoopback : off + DMANetworkLoopback : off + PHYInternalLoopback: off + PHYExternalLoopback: off + + Example: + + $ ethtool --set-priv-flags ethX DMASystemLoopback on + + DMASystemLoopback: DMA Host loopback. + PKTSystemLoopback: Packet buffer host loopback. + DMANetworkLoopback: Network side loopback on DMA block. + PHYInternalLoopback: Internal loopback on Phy. + PHYExternalLoopback: External loopback on Phy (with loopback ethernet cable). + + Command Line Parameters ======================= The following command line parameters are available on atlantic driver: -- cgit v1.2.3