Hi Ching, As you noted we (ixgbe) doesn't modify this value, other than initialing it to zero. However elsewhere in the stack it is modified. One example being dev_forward_skb(). So ixgbe devices may report rx_dropped as something other than "0".
Thanks, -Don >-----Original Message----- >From: Filo FeFi [mailto:[email protected]] >Sent: Thursday, May 19, 2011 7:19 PM >To: [email protected] >Subject: [E1000-devel] Question on net_stats->rx_dropped setting to "0" > >Dear ixgbe developers: > >I'm debugging a problem where some frames get dropped by the ixgbe >driver (version 2.0.44-k2), i.e. /proc/net/dev "drop" is not 0. > >Reading the ixgbe-3.3.9/2.0.44.13/2.0.44.14 source, I see the line >(in ixgbe_main.c ixgbe_update_stats()): "net_stats->rx_dropped = 0;" > >So, does this mean that ixgbe always reports "0" for RX dropped? > >Under what circumstances would /proc/net/dev's drop count for ixgbe >be incremented/changed from "0"? > >Thank you, >Ching Tai >(650) 506-1454 > > >------------------------------------------------------------------------ >------ >What Every C/C++ and Fortran developer Should Know! >Read this article and learn how Intel has extended the reach of its >next-generation tools to help Windows* and Linux* C/C++ and Fortran >developers boost performance applications - including clusters. >http://p.sf.net/sfu/intel-dev2devmay >_______________________________________________ >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 ------------------------------------------------------------------------------ vRanger cuts backup time in half-while increasing security. With the market-leading solution for virtual backup and recovery, you get blazing-fast, flexible, and affordable data protection. Download your free trial now. http://p.sf.net/sfu/quest-d2dcopy1 _______________________________________________ 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
