>-----Original Message----- >From: Alexander Stavitsky [mailto:[email protected]] >Sent: Thursday, March 31, 2011 7:52 AM >To: [email protected] >Cc: Ronciak, John >Subject: [E1000-devel] help with igb driver > >Hello. > >I've been talking with John Ronciak about igb driver problems on Linux >(RHEL 6 Linux bgp 2.6.32-71.el6.x86_64 #1 SMP Wed Sep 1 01:33:01 EDT >2010 x86_64 x86_64 x86_64 GNU/Linux box) in shaper role, it seems >problem is solved by disabling irqbalance daemon. For now we have >builded new server with equal hardware: >S5000PAL platform and E1G44ET (igb) network adapter. >Basic role for this server is BGP router. But after testing we have got >some strange behavior. It seems, that all working fine, iptables >completely disabled, nf_conntrack modules not loaded, http pages are >working fine, but when we try to load some other http pages, they are >not working (could not load completely, but it's randomly - one time it >loads and one time - no). We have read somewhere in Internet, that it's >required to disable LRO, while routing, but it seems, that it's disabled >by driver (ethtool -k), for example: >Offload parameters for eth0: >rx-checksumming: on >tx-checksumming: on >scatter-gather: on >tcp-segmentation-offload: on >udp-fragmentation-offload: off >generic-segmentation-offload: on >generic-receive-offload: on >large-receive-offload: off >So, is it truly disabled, or it should be done via insmod/modprobe >arguments? And if it's disabled - what's wrong with our configuration? >And maybe you can give us some assumption. (for example - some tcp >tuning for igb driver) >I should say, that this hardware is working fine for shaping, but for >routing - no in our case. > >-- >With best regards, Alexander A. Stavitsky >U-LAN Telecommunication company >2 Volskaya str., bld. 22-1 >Cell phone: +7 (925) 071-46-94 >Landline phone: +7 (495) 660-02-08 ext. 777 > > >------------------------------------------------------------------------ >------ >Create and publish websites with WebMatrix >Use the most popular FREE web apps or write code yourself; >WebMatrix provides all the features you need to develop and >publish your website. http://p.sf.net/sfu/ms-webmatrix-sf >_______________________________________________ >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
Hello, Try using ethtool to turn off generic-receive-offload. It should be disabled in routing configurations as well. Let me know if it makes a difference, Thanks, Carolyn Carolyn Wyborny Linux Development LAN Access Division Intel Corporation ------------------------------------------------------------------------------ Create and publish websites with WebMatrix Use the most popular FREE web apps or write code yourself; WebMatrix provides all the features you need to develop and publish your website. http://p.sf.net/sfu/ms-webmatrix-sf _______________________________________________ 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
