Hey Steve, RSS hash produces a 4 bit index. There is only one hash function as defined by MSFT RSS. These bits are used to spread the incoming packets to up to 16 queues. Where they go is solely based on that index so if you want more control than that sadly you will have to some other filtering mechanism (i.e. Perfect Filters).
Sorry, -Don Skidmore <[email protected]> >-----Original Message----- >From: Steve O'Brien [mailto:[email protected]] >Sent: Monday, July 18, 2011 7:39 AM >To: Skidmore, Donald C; [email protected] >Subject: RE: [E1000-devel] Round-robin Flow Director? > >Hi Don, > >Thanks for the response, I will take a deeper look at the perfect >filters. >Could you confirm, though, that there is no way to use RSS and get an >even >distribution without filters, e.g. round-robin? > >Steve > >-----Original Message----- >From: Skidmore, Donald C [mailto:[email protected]] >Sent: Thursday, July 14, 2011 11:43 AM >To: Steve O'Brien; [email protected] >Subject: RE: [E1000-devel] Round-robin Flow Director? > >Hi Steve, > >If RSS isn't giving you the spread you need you might want to try >setting up >perfect filters. That way you could divide flows based on a criteria >that >that works for your packet distribution. If you do I would suggest you >use >the latest driver and ethtool as it has some rather substantial >improvement >for that feature. > >Thanks, >-Don Skidmore <[email protected]> > > > >>-----Original Message----- >>From: Steve O'Brien [mailto:[email protected]] >>Sent: Thursday, July 14, 2011 6:49 AM >>To: [email protected] >>Subject: [E1000-devel] Round-robin Flow Director? >> >>Hello, >> >> >> >>I'm working with the ixgbe drivers to an Intel 82599 based NIC. I have >a >>situation where I would like to use RSS, but want round-robin >>distribution >>of the receive frames. (Because my mobile network primarily uses only a >>few >>network elements, filtering sends 95% of the packets to one queue.) I >>would >>appreciate some guidance. >> >> >> >>Thanks, >> >> >> >>Steve > ------------------------------------------------------------------------------ Magic Quadrant for Content-Aware Data Loss Prevention Research study explores the data loss prevention market. Includes in-depth analysis on the changes within the DLP market, and the criteria used to evaluate the strengths and weaknesses of these DLP solutions. http://www.accelacomm.com/jaw/sfnl/114/51385063/ _______________________________________________ E1000-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
