> 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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