Re: [PATCH 2/3] dma: override "dma_flags_set_dmaflush" for sn-ia64

akepner
2007-08-21T21:38:25Z

On Tue, Aug 21, 2007 at 02:16:32PM -0600, Matthew Wilcox wrote:
>
> So, let me try to understand ... your hardware allows writes from the
> device to pass other writes from the device? Doesn't that violate the
> PCI spec? I'm thinking about this (page 43 of PCI 2.3):
> ....

I should have stated this more carefully, but it's not a PCI reordering
that's being addressed here, it's a reordering that can occur within
the NUMA-interconnect.

--
Arthur