From: Eric Dumazet > On Tue, 2014-03-04 at 14:35 +0000, David Laight wrote: > > > Does that mean you are splitting the 64k 'ethernet packet' from TCP > > is software? I've looked at the ax88179 where the hardware can do it. > > > > Is there really a gain doing segmentation here if you have to do the > > extra data copy? > > There is no 'extra' copy. > > There is _already_ a copy, so what's the deal of doing this copy in a SG > enabled way ?
Ok. But there is one more copy than for a normal ethernet chipset which can use multiple ring entries to send the MAC+IP+TCP headers from a different buffer to the TCP userdata. David N�����r��y����b�X��ǧv�^�){.n�+����{����zX����ܨ}���Ơz�&j:+v�������zZ+��+zf���h���~����i���z��w���?�����&�)ߢf��^jǫy�m��@A�a��� 0��h���i