dev.bce.X.com_no_buffers increasing and packet loss

[Ian FREISLICH]

Pyun YongHyeon wrote:
> On Wed, Mar 10, 2010 at 02:45:47PM -0800, David Christensen wrote:
> > The bce(4) hardware supports a linked list of pages for RX 
> > buffer descriptors.  The stock build supports 2 pages (RX_PAGES)
> > with a total of 511 BD's per page.  The hardware can support a
> > maximum of 64K BD's but that would be an unnecessarily large
> > amount of mbufs for an infrequent problem.

I think that depends on how you define infrequent.  Our use case
is a largish core router.  It's highly likely that we'll see this
again and again in various packet storms on our network.

Ian

--
Ian Freislich