[PATCH 0/10] DMA-API debugging facility
Joerg Roedel
joro at 8bytes.org
Sat Nov 22 01:29:04 PST 2008
On Sat, Nov 22, 2008 at 12:27:39PM +0900, FUJITA Tomonori wrote:
> On Fri, 21 Nov 2008 17:26:00 +0100
> Joerg Roedel <joerg.roedel at amd.com> wrote:
>
> > Hi,
> >
> > this patchset introduces code to debug drivers usage of the DMA-API.
> > Tests with hardware IOMMUs have shown several bugs in drivers regarding
> > the usage of that API.
> > Problems were found especially in network card drivers.
>
> Especially? Have you met dma similar bugs with storage (scsi, etc)
> drivers?
No. For me the code only triggered network card drivers. Namely the
ixgbe, tg3 and bnx2 driver.
>
> > This way driver developers get an idea where the problem is in their
> > code.
> >
> > Please review and send any objections or, if there are none, consider
> > for inclusion ;)
>
> This should be architecture independent code. Except for that, it
> looks very useful.
Thanks,
Joerg
More information about the iommu
mailing list