Stefan, Could you please send me the output of 'ethtool' and 'ethtool -i' for each i40e interface that is experiencing the dropped packets issue? Also, the system log might help also - dmesg can get that. That'll give me something to look at.
By the way, have you tried using ethtool to turn adaptive RX and TX off using ethtool to see if that has any impact on the dropped packets? That might be an easy test to run. Thanks, - Greg > -----Original Message----- > From: Stefan Priebe [mailto:s.pri...@profihost.ag] > Sent: Wednesday, August 05, 2015 11:14 AM > To: e1000-devel@lists.sourceforge.net > Subject: Re: [E1000-devel] dropped rx with i40e > > > Something i've noticed: > ixgbe: > Adaptive RX: off TX: off > rx-usecs: 1 > tx-usecs: 0 > > i40e: > Adaptive RX: on TX: on > rx-usecs: 62 > tx-usecs: 122 > > Stefan > > Am 05.08.2015 um 09:02 schrieb Stefan Priebe - Profihost AG: > > Hello list, > > > > we're using the intel X520 cards with the ixgbe driver since a long > > time for our cloud infrastructure. We never had a problem with dropped > > packets and everything was always fine. > > > > Since a year we started switching to the X710 cards as they're better > > regarding their specs (lower power consumption, lower latency, better > > price). > > > > We've around 100 X710 cards running now and we had a lot of trouble > > with them. Back in 2014 there were a firmware bug, then there were > > driver problems with bonding and so on. > > > > Now we have detected a new problem! We're seeing a lot of rx_dropped > > packets on all X710 cards while all ixgbe based cards are working fine. > > > > I've tested the 1.2.48 driver als also the latest 1.3.4-k driver from > > 4.2-rc5. > > > > Can anybody help? > > > > Greets, > > Stefan > > > > -------------------------------------------------------------------------- > ---- > _______________________________________________ > E1000-devel mailing list > E1000-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/e1000-devel > To learn more about Intel® Ethernet, visit > http://communities.intel.com/community/wired ------------------------------------------------------------------------------ _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
