While the hardware is capable of supporting the larger number of queues, the RSS hash is only 4bit long (so only 16 queues) can be supported. ATR and perfect filters could support the larger queue sizes. Not sure that will work for you though. :(
Thanks, -Don Skidmore <donald.c.skidm...@intel.com> > -----Original Message----- > From: Eric Leblond [mailto:e...@regit.org] > Sent: Thursday, January 23, 2014 1:43 PM > To: e1000-devel@lists.sourceforge.net > Subject: [E1000-devel] RSS queues number limit on 82599 controller > > Hello, > > >From what I've tested and after reading a bit the driver code, it seems > there is a limit to 16 RSS queues for a 82599 based network card with ixgbe > driver. Specification of the controller is speaking of 128 available RSS > queues > in most places (if we omit table 7-1 which is mentioning that only 16 RSS > queues in the supported queuing schemes). > > So my question is: Is there only 16 RSS queues due to a hardware limit or > would it be possible to have more RSS queues by hacking the driver ? > > I'm one of the developer of Suricata, an open-source IDS/IPS and we would > really benefit from being able to have access to more RX queues. > > BR, > -- > Eric Leblond <e...@regit.org> > > > ------------------------------------------------------------------------------ > CenturyLink Cloud: The Leader in Enterprise Cloud Services. > Learn Why More Businesses Are Choosing CenturyLink Cloud For > Critical Workloads, Development Environments & Everything In Between. > Get a Quote or Start a Free Trial Today. > http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.cl > ktrk > _______________________________________________ > E1000-devel mailing list > E1000-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/e1000-devel > To learn more about Intel® Ethernet, visit > http://communities.intel.com/community/wired ------------------------------------------------------------------------------ CenturyLink Cloud: The Leader in Enterprise Cloud Services. Learn Why More Businesses Are Choosing CenturyLink Cloud For Critical Workloads, Development Environments & Everything In Between. Get a Quote or Start a Free Trial Today. http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.clktrk _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
