Re: cluster size

[Terry Lambert]

Alfred Perlstein wrote:
> > On Thu, Jul 26, 2001 at 10:18:09AM -0700, Terry Lambert wrote:
> > > The real reason behind all this is to make the input and output
> > > routines symmetric, since mbuf's can be allocated at interrupt,
> > > and clusters can't (or couldn't, last time I looked at 4.3).
> >
> >       They can. Whether they are or not I'm not sure.
> 
> Er, wouldn't that be the only way for cards to refil thier DMA
> recieve buffers?

Look at the Tigon II and FXP drivers.  The allocations in
the macros turn into m_get, not m_clusterget.

-- Terry

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