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On Mon, 2002-12-30 at 11:28, uaca@alumni.uv.es wrote: > Hi all > > IMHO The problem is quite complicated because > > + common hardware is not designed for real time: > > - sends multiple PDUs within one interrupt, and can be delayed > - Host adapter bus & infraestructure is not designed to garantee latency > etc... The packet can be timestamped by the hardware receiving as well as by the kernel netif_rx code. This is actually intentional and there is hardware that supports doing IRQ raise time sampling which the driver can then use to get very accurate data. Alan - 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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