[Click] [RFC] [PATCH] PollDevice/ToDevice improvement

[Joonwoo Park]

2007/11/16, springbo at cs.wisc.edu <springbo at cs.wisc.edu>:
> Hello Joonwoo,
>
> The new patch compiled without any warnings on x86_64.
>
> After an hour of use with an Intel PRO/1000 PT Dual Port Server Adapter
> NIC I haven't seen any major problems with the patch so far. It seems to
> be working fine.

That's good!

>
> I did see a Tx Unit Hang when shutting down kclick:
> e1000: eth2: e1000_clean_tx_irq: Detected Tx Unit Hang
>  Tx Queue             <0>
>  TDH                  <cf>
>  TDT                  <cf>
>  next_to_use          <cf>
>  next_to_clean        <62>
> buffer_info[next_to_clean]
>  time_stamp           <100258906>
>  next_to_watch        <62>
>  jiffies              <100284bf5>
>  next_to_watch.status <1>
>

Thanks for it. I looks like we need to clean tx ring to stop click.
I'll check this.

> I haven't crunched the numbers for performance yet, but I did notice the
> machine seemed to be much more responsive.
>

It sounds hopeful. :-)
Thanks so much.

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