Hello All, I am going throgh the "Link Aggregation" module in Linux (bonding.c). The code seems to suggest that the dev->features of slave devices is simply ignored while bundling into the master device. Suppose I have two Intel epro1000 cards that can support TCP Segmentation Offload. Now if I bond these two slave cards into a new master card, the new bonding device that is the master device will be used in the routing table. When a TCP connection is established sk->route_caps is assigned from the dev->features of the assigned outgoing device. If the outgoing device is the bonding device then the dev->features won't have NETIF_F_TSO as the feature and hence upper layers will believe that the outgoing device cannot do TSO. I believe that at best we can take an OR of the dev->features of all the slave devices and assign it to the dev->features of the bonding device. This way we are sure that we are taking the Least Common Denominator while deciding the features for the master device. Thanx, tomar - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
