On Mon, 2015-05-04 at 12:04 +0200, Jakub Kiciński wrote: > > Don't know how your buffers are set up, but if the DMA engine consumes > > pages you could consider using paged RX instead of the memcpy(). > > DMA engine can concatenate multiple frames into a single USB bulk > transfer to a large continuous buffer. There is no way to request > any alignment of the frames within that large buffer so I think paged > RX is not an option. You could probably still do it because the networking stack only requires the *headers* to be aligned. But if they headers aren't in the skb->data (skb->head) then they'll be pulled into that by the network stack, where they'll be aligned. johannes -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
