Re: Driver has suspect GRO implementation, TCP performance may be compromised.

2019-07-22 Thread Paul Menzel
Dear Eric, Sorry for the late reply. On 5/29/19 6:00 PM, Eric Dumazet wrote: > On Wed, May 29, 2019 at 7:49 AM Paul Menzel wrote: >> On 05/28/19 19:18, Eric Dumazet wrote: >>> On 5/28/19 8:42 AM, Paul Menzel wrote: >> Occasionally, Linux outputs the message below on the workstation Dell

Re: Driver has suspect GRO implementation, TCP performance may be compromised.

2019-05-30 Thread Eric Dumazet
On 5/30/19 3:52 PM, Alexander Duyck wrote: > Actually I think there are some parts that don't have any receive > limits that are supported by the e1000 part. What ends up happening is > that we only drop the packet if it spans more than one buffer if I > recall correctly, and buffer size is det

Re: Driver has suspect GRO implementation, TCP performance may be compromised.

2019-05-30 Thread Alexander Duyck
On Wed, May 29, 2019 at 9:38 AM Stephen Hemminger wrote: > > On Wed, 29 May 2019 09:00:54 -0700 > Eric Dumazet wrote: > > > On Wed, May 29, 2019 at 7:49 AM Paul Menzel wrote: > > > > > > Dear Eric, > > > > > > > > > Thank you for the quick reply. > > > > > > On 05/28/19 19:18, Eric Dumazet wrote

Re: Driver has suspect GRO implementation, TCP performance may be compromised.

2019-05-29 Thread Stephen Hemminger
On Wed, 29 May 2019 09:00:54 -0700 Eric Dumazet wrote: > On Wed, May 29, 2019 at 7:49 AM Paul Menzel wrote: > > > > Dear Eric, > > > > > > Thank you for the quick reply. > > > > On 05/28/19 19:18, Eric Dumazet wrote: > > > On 5/28/19 8:42 AM, Paul Menzel wrote: > > > > >> Occasionally, Lin

Re: Driver has suspect GRO implementation, TCP performance may be compromised.

2019-05-29 Thread Eric Dumazet
On Wed, May 29, 2019 at 7:49 AM Paul Menzel wrote: > > Dear Eric, > > > Thank you for the quick reply. > > On 05/28/19 19:18, Eric Dumazet wrote: > > On 5/28/19 8:42 AM, Paul Menzel wrote: > > >> Occasionally, Linux outputs the message below on the workstation Dell > >> OptiPlex 5040 MT. > >> > >>

Re: Driver has suspect GRO implementation, TCP performance may be compromised.

2019-05-29 Thread Paul Menzel
Dear Eric, Thank you for the quick reply. On 05/28/19 19:18, Eric Dumazet wrote: > On 5/28/19 8:42 AM, Paul Menzel wrote: >> Occasionally, Linux outputs the message below on the workstation Dell >> OptiPlex 5040 MT. >> >> TCP: net00: Driver has suspect GRO implementation, TCP performance ma

Re: Driver has suspect GRO implementation, TCP performance may be compromised.

2019-05-28 Thread Eric Dumazet
On 5/28/19 8:42 AM, Paul Menzel wrote: > Dear Linux folks, > > > Occasionally, Linux outputs the message below on the workstation Dell > OptiPlex 5040 MT. > > TCP: net00: Driver has suspect GRO implementation, TCP performance may be > compromised. > > Linux 4.14.55 and Linux 5.2-rc2 sho