I am modifying linux kernel 2.4.18 to add support for our TCP offload card. The problem is: The packets that I get from the card are fully TCP processed and in-order. Now I feed these packets to netif_rx(). marking a flag in the skbuff which says that the full TCP/IP processing is done on this packet and the higher layers can just bypass the packet protocol processing. On an SMP m/c different consequtive in-order packets received from the card can be queued to different per-cpu queues and it might so happen that the later received packet is added to the socket receive queue first ( bcos the softirq on the later CPU got a chance to execute first). This maliciously reorders the data. My question is, what is an elegant way of avoiding this. I have a couple of choices, but I want to know what people think. f.e one way is to queue these packets to a single queue and not a per-cpu queue. In this case order will be honoured. brilliant suggestions are very welcome !! 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
