NIC drivers that support RSS use either a hard-coded value or a random value for the RSS hash key. Irrespective of the type of the key used, the user would want to change the hash key if he/she is not satisfied with the effectiveness of the default hash-key in spreading the incoming flows evenly across the RSS queues.
This patch set provides support for configuring the RSS hash-key via the ethtool interface.
The patch set consists of:
a) ethtool user-land patches
b) ethtool kernel patch
c) be2net patch that implements the ethtool hooks