The function should be around line 1500 in /net/core/dev.c of the Linux kernel. I've included a link to it in lxr below.
http://lxr.linux.no/#linux+v2.6.39/net/core/dev.c#L1498 Thanks, Alex On 05/25/2011 02:41 PM, Filo FeFi wrote: > Hi Don, > > Could you please elaborate a little on the dev_forward_skb() ? > Where can I find that function? > > I was about to conclude that ixgbe always report "0" for RX drop, > but I would like to know the correct answer. > > Thanks, > Ching > > --- On Mon, 5/23/11, Skidmore, Donald C<[email protected]> wrote: > >> From: Skidmore, Donald C<[email protected]> >> Subject: RE: [E1000-devel] Question on net_stats->rx_dropped setting to "0" >> To: "Filo FeFi"<[email protected]>, >> "[email protected]"<[email protected]> >> Date: Monday, May 23, 2011, 5:55 PM >> 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 ------------------------------------------------------------------------------ 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
