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On Wed, 3 Oct 2001, jamal wrote: > > i'm worried by the dev->quota variable a bit. As visible now in the > > 2.4.10-poll.pat and tulip-NAPI-010910.tar.gz code, it keeps calling the > > ->poll() function until dev->quota is gone. I think it should only keep > > calling the function until the rx ring is fully processed - and it should > > re-enable the receiver afterwards, when exiting net_rx_action. > > This would result in an unfairness. Think of one device which receives > packets really fast that it takes most of the CPU capacity just > processing it. no, i asked something else. i'm asking the following thing. dev->quota, as i read the patch now, can cause extra calls to ->poll() even though the RX ring of that particular device is empty and the driver has indicated it's done processing RX packets. (i'm now assuming that the extra-polling-for-a-jiffy line in the current patch is removed - that one is a showstopper to begin with.) Is this claim of mine correct? Ingo - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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