On 11/24/17 11:32 AM, Eric Dumazet wrote: > On Fri, 2017-11-24 at 10:14 -0700, David Ahern wrote: >> On 11/22/17 5:30 PM, Solio Sarabia wrote: >>> The netdevice gso_max_size is exposed to allow users fine-control >>> on >>> systems with multiple NICs with different GSO buffer sizes, and >>> where >>> the virtual devices like bridge and veth, need to be aware of the >>> GSO >>> size of the underlying devices. >>> >>> In a virtualized environment, setting the right GSO sizes for >>> physical >>> and virtual devices makes all TSO work to be on physical NIC, >>> improving >>> throughput and reducing CPU util. If virtual devices send buffers >>> greater than what NIC supports, it forces host to do TSO for >>> buffers >>> exceeding the limit, increasing CPU utilization in host. >>> >>> Suggested-by: Shiny Sebastian <shiny.sebast...@intel.com> >>> Signed-off-by: Solio Sarabia <solio.sara...@intel.com> >>> --- >> >> This should be added to rtnetlink rather than sysfs. > > This is already exposed by rtnetlink [1]
It currently is read-only. This patch wants to control setting it. > > Please lets not add yet another net-sysfs knob. Which is my main point - no more sysfs files.
