This is a complete rework of the myri10ge receive path. The first patch converts skb allocation to use physical pages. The second one adds a software implementation of Large Receive Offload. The third one updates the driver version to 1.1.0.
The complete driver code in our CVS actually also supports high-order allocations instead of single physical pages since it significantly increase the performance. Order=2 allows us to receive standard frames at line rate even on low-end hardware such as an AMD Athlon(tm) 64 X2 Dual Core Processor 3800+ (2.0GHz). Some customer might not care a lot about memory fragmentation if the performance is better. But, since high-order allocations are generally considered a bad idea, we do not include the relevant code in the following patch for inclusion in Linux. Here, we simply pass order=0 to all page allocation routines. If necessary, I could drop the remaining reference to high-order (especially replace alloc_pages() with alloc_page()) but I'd rather keep it as is. If high-order allocations are ever considered OK under some circum- stances, we could send an additional patch (a module parameter would be used to switch from single physical pages to high-order pages). Thanks, Brice - 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
