> On Wed, Apr 27, 2016 at 2:36 AM, Otto Sabart <osab...@redhat.com> wrote: > > > > Hello everyone, > > does anybody have a problem with LRO on ixge (on latest 4.6-rc5)? > > I cannot find a way to enable it. > > > > On stable RHEL7.2 kernel everything works fine. > > > > I opened a bug report [0]. > > > > [0] https://bugzilla.kernel.org/show_bug.cgi?id=117291 > > > > > > Thanks! > > > > Ota >
Hello Alex, > So I am able to turn on LRO without any issues. Yes, I badly desciribed the problem. The LRO was not possible to turn on immediately _after the boot_ (I was enabling it in /etc/rc.local). When I reloaded the ixgbe driver, the LRO was possible to turn on without problem. I found out that the problem was caused by network manager. When I disabled NM, the LRO started to work. > > Do you know if you have done anything that might disable LRO such as > modified the rx-usecs to a value less than 10 or enabled routing or > bridging on the device? Also I think a stacked device might be able > to block you from enabling LRO unless all the devices stacked on the > interface can support it. I did not modify rx-usecs (at least not intentionally). Its value is always (with disabled or enabled LRO) equal to 1 (with disabled NM). $ ethtool -c ixgbe | grep rx-usecs rx-usecs: 1 rx-usecs-irq: 0 rx-usecs-low: 0 rx-usecs-high: 0 There is no linux bridge or routing enabled on this device. There is only a VLAN configured. Does it matter? $ ip l show ixgbe 9: ixgbe: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT qlen 1000 link/ether 00:1b:21:90:c3:86 brd ff:ff:ff:ff:ff:ff $ ip l show ixgbe.40 19: ixgbe.40@ixgbe: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT qlen 1000 link/ether 00:1b:21:90:c3:86 brd ff:ff:ff:ff:ff:ff I updated the bugzilla [0] and I think we can close this as a NOTABUG. Thanks! Ota
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