The following changes introduce support for Indirection Table editing similar to the functionality provided by the following ethtool CLI commands:
sudo ethtool --set-rxfh-indir $ETH equal 10 or sudo ethtool --set-rxfh-indir $ETH weight 1 1

• New functions: GetIndir, SetIndir, fillIndirTable
• New structs: Indir and SetIndir

The GetIndir(intf string) function retrieves the current Indirection Table for the specified network interface, and returns an Indirstruct.

The SetIndir(intf string, setIndir SetIndir) function sets a new Indirection Table for the specified interface. The function accepts a SetIndir struct, which should have either: SetIndir.Equal value set or SetIndir.Weight slice set.

The function then calls the fillIndirTable, an Internal helper function that generates the Indirection Table based on the input parameters, following the same logic used in ethtool.c.

An usage example can be seen in theTestIndir(...) function in ethtool_test.go.