On Fri, 5 Mar 2021 16:15:51 +0530 Sunil Kovvuri wrote: > Hi, > > We have a requirement where in we want RSS hashing to be done on packet fields > which are not currently supported by the ethtool. > > Current options: > ehtool -n <dev> rx-flow-hash > tcp4|udp4|ah4|esp4|sctp4|tcp6|udp6|ah6|esp6|sctp6 m|v|t|s|d|f|n|r > > Specifically our requirement is to calculate hash with DSA tag (which > is inserted by switch) plus the TCP/UDP 4-tuple as input.
Can you share the format of the DSA tag? Is there a driver for it upstream? Do we need to represent it in union ethtool_flow_union? > Is it okay to add such options to the ethtool ? > or will it be better to add a generic option to take pkt data offset > and number of bytes ? > > Something like > ethtool -n <dev> rx-flow-hash tcp4 sdfn off <offset in the pkt> num > <number of bytes/bits> > > Any comments, please.
