Re: [Xen-devel] qemu pcnet emulation problems.

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 22 Mar 2006, at 01:36, Nivedita Singhvi wrote:

> > Another thing I noticed, that will reduce throughput if corrected, is
> > that the wrong bit is being examined in the receive path, to determine
> > if mac level crc should be computed.  Right now, the wrong bit is 
> > being
> > checked and no mac level crc is being calculated.  If the right bit 
> > were
> > looked at, mac level crc would need to be computed, slowing down the
> > transfers.  However, since no driver cares about the crc right now,
> > since neither Linux or XP complain, could the code to compute the crc 
> > be
> > deleted?  Maybe just comment that the crc should be computed.
> > Any recommendations?
> I'd really like to continue to avoid the CRC computation between
> domains, but intentionally, this time, in a clean way :).
The code should be deleted as the underlying physical transport (e.g., 
shared memory, physical Ethernet) will ensure link-layer integrity.
 -- Keir


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