If both are ON then which one works tso or gso ? On Wed, Nov 19, 2014 at 12:22 PM, Varun Sharma <[email protected]> wrote: > If both are ON then which one works tso or gso ? > > > > On Wed, Nov 19, 2014 at 12:07 PM, Raj Ravi <[email protected]> wrote: >> TSO is a hardware feature whereas GSO is a software feature. >> >> In the sense, TSO needs "the device" to break the frame into MTU sized >> segments. >> BUT, GSO is a strategy followed by kernel to avoid processing smaller >> packets throughout the stack. >> >> Refer this: >> http://blogs.gnome.org/markmc/2008/05/28/checksums-scatter-gather-io-and-segmentation-offload/ >> >> <<< >> GSO is a generalisation of this in the kernel. The idea is that you >> delay segmenting a packet until the latest possible moment. In the >> case where a device doesn’t support TSO, this would be just before >> passing the skb to the driver. If the device does support TSO, the >> unsegmented skb would be passed to the driver. >> <<< >> >> >> On Wed, Nov 19, 2014 at 11:40 AM, Varun Sharma <[email protected]> wrote: >>> Hi, >>> >>> I have basic question about gso(generic segmentation offload) vs >>> tso(TCP segmentation offload) >>> >>> 1. How both are different to each other? >>> >>> 2. If both are ON using ethtool which one is perform segmentation gso or >>> tso ? >>> >>> >>> Regards >>> varun >>> >>> _______________________________________________ >>> Kernelnewbies mailing list >>> [email protected] >>> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
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