[dpdk-dev] [PATCH v2 1/6] mem: add function for checking memsegs IOVAs addresses

Alejandro Lucero alejandro.lucero at netronome.com
Fri Oct 5 14:19:43 CEST 2018


On Fri, Oct 5, 2018 at 1:15 PM Burakov, Anatoly <anatoly.burakov at intel.com>
wrote:

> On 05-Oct-18 1:06 PM, Alejandro Lucero wrote:
> > A device can suffer addressing limitations. This function checks
> > memsegs have iovas within the supported range based on dma mask.
> >
> > PMDs should use this function during initialization if device
> > suffers addressing limitations, returning an error if this function
> > returns memsegs out of range.
> >
> > Another usage is for emulated IOMMU hardware with addressing
> > limitations.
> >
> > It is necessary to save the most restricted dma mask for checking out
> > memory allocated dynamically after initialization.
> >
> > Signed-off-by: Alejandro Lucero <alejandro.lucero at netronome.com>
> > ---
>
> Reviewed-by: Anatoly Burakov <anatoly.burakov at intel.com>
>
>
Thanks Anatoly.

I have just noticed I did not remove the previous keeping of the dma mask.

I will send another version just with this change and will add you review
if you are happy if I do so.



> --
> Thanks,
> Anatoly
>


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