From 23e8b470c7788da972d0be90d6ac20b4a2da2782 Mon Sep 17 00:00:00 2001 From: Andrew Lunn Date: Fri, 25 Oct 2019 01:03:52 +0200 Subject: net: dsa: mv88e6xxx: Add devlink param for ATU hash algorithm. Some of the marvell switches have bits controlling the hash algorithm the ATU uses for MAC addresses. In some industrial settings, where all the devices are from the same manufacture, and hence use the same OUI, the default hashing algorithm is not optimal. Allow the other algorithms to be selected via devlink. Signed-off-by: Andrew Lunn Signed-off-by: David S. Miller --- Documentation/networking/devlink-params-mv88e6xxx.txt | 7 +++++++ 1 file changed, 7 insertions(+) create mode 100644 Documentation/networking/devlink-params-mv88e6xxx.txt (limited to 'Documentation') diff --git a/Documentation/networking/devlink-params-mv88e6xxx.txt b/Documentation/networking/devlink-params-mv88e6xxx.txt new file mode 100644 index 000000000000..21c4b3556ef2 --- /dev/null +++ b/Documentation/networking/devlink-params-mv88e6xxx.txt @@ -0,0 +1,7 @@ +ATU_hash [DEVICE, DRIVER-SPECIFIC] + Select one of four possible hashing algorithms for + MAC addresses in the Address Translation Unit. + A value of 3 seems to work better than the default of + 1 when many MAC addresses have the same OUI. + Configuration mode: runtime + Type: u8. 0-3 valid. -- cgit v1.2.3