Hi, after running some experiments, we realised that using VLAN support in Linux caused some overhead. It turned out to be that the offloading features of our NIC (tso, sg, checksum offloading) were not beeing used.
After digging a little bit in the code, we realised that the VLAN code did not set the features parameter of the net_device structure for the virtual interface. Attached is a patch with a suggested solution to this problem. Please let us know if this is an acceptable patch. Thanks, Olivier Crameri, HP Labs - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
