We are using version 2.0.84.9 of the out of tree driver. On Wed, Mar 28, 2012 at 2:55 AM, Tantilov, Emil S <[email protected]> wrote: > Sorry for the late reply. > > Could you provide the exact version of the driver you are using? > > Is it the built-in driver in the kernel or an out-of-tree from SF? > > Thanks, > Emil > >>-----Original Message----- >>From: Sorin Dumitru [mailto:[email protected]] >>Sent: Thursday, March 22, 2012 12:44 AM >>To: [email protected] >>Subject: [E1000-devel] ipip tunnels on 82599EB with ixgbe driver >> >>Hi, >> >>We are trying to run a large number of ip in ip(ipv6 over ipv4 or ipv4 >>ove ipv6) tunnels over intel cards >>with the ixgbe driver. This is what lspci is showing about these cards: >>04:00.0 Ethernet controller: Intel Corporation 82599EB 10-Gigabit >>Network Connection (rev 01) >>04:00.1 Ethernet controller: Intel Corporation 82599EB 10-Gigabit >>Network Connection (rev 01) >> >>I think that the hardware isn't able to parse the packets after the >>first IP header so the only hashing it >>uses to distribute packets to receive queues is done based on the >>first IP header. Because that header >>is the same for all packets, all packets will arrive on the same cpu, >>which doesn't scale very well for us. >>I've attached what /proc/interrupts is showing, as you can see all >>packets arrive on CPU6. >> >>Is there some way we can convince the hardware to distribute these >>packets on all cpus? If we could at least >>include the second ip header, we would get a much better distribution >>because there are many users on these >>tunnels. I know we can do this from software on linux, but we are >>using linux 2.6.32, which doesn't have this >>option and upgrade isn't really an option right now. >> >>We are also using a rather old driver(i think it's a version from >>early 2010), have any improvements >>been made in newer versions on this issue? >> >>Thanks, >>Sorin
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