> On Dec 12, 2011, at 1:41 PM, Guy Harris wrote:
>
> > On Dec 12, 2011, at 3:59 AM, David Laight wrote:
> >
> >> I also think that interface could defer freeing the last
> >> rx buffer until the request to read another packet.
> >> That would avoid the necessity of a buffer copy
> >> for applications that don't want to use callbacks.
>
> Actually, that *might* be doable, with some additional
> complexity, although it does leave one less buffer slot
> available to the kernel...
Only until the application tries to read the next packet.
Which will be almost immediately it has finished processing it.
The V1/V2 header stuff looks like a badly fixed fubar!
If might be worth sorting out the correct offset for a
32bit access to sp_status! - needed for big-endian 64bit
systems.
David
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