> > > > > > I've tested with > > > Debian linux-image-2.6.26-2-amd64 version 2.6.26-19lenny2, Debian > > > linux-image-2.6.30-bpo.2-amd64 version 2.6.30-8~bpo50+2 and > > > kernel.org > > > 2.6.30.10 amd64 with ethtool patch for setting of tso. Same result. > > > > Does booting with the kernel parameter 'pci=nomsi' avoid the problem? > > > > Hannes has found DMA-write (for rx-packet) is abnormal due to msi function. > But TSO is for rx-packet, an opposite direction. I'm not sure :(, If someone > has this issue, he/she could have a try. >
I checked windows driver, it does limit the max packet length for TSO windows XP : 32*1024 bytes (include MAC header and all MAC payload). No support IP/TCP option. Windows 7: 15, 000 bytes, support IP/TCP option. Thanks Xiong
