[dpdk-dev] [PATCH] eal/linux: allow to map BARs with MSI-X tables, around them

Dan Aloni dan at kernelim.com
Wed Jan 28 15:06:27 CET 2015


On Thu, Jan 22, 2015 at 10:36:11AM +0200, Dan Aloni wrote:
> While VFIO doesn't allow us to map complete BARs with MSI-X tables,
> it does allow us to map around them in PAGE_SIZE granularity. There
> might be adapters that provide their registers in the same BAR
> but on a different page. For example, Intel's NVME adapter, though
> not a network adapter, provides only one MMIO BAR that contains
> the MSI-X table.
> 
> Signed-off-by: Dan Aloni <dan at kernelim.com>
> CC: Anatoly Burakov <anatoly.burakov at intel.com>

Has anyone reviewed this yet?

I am asking because I am interested to know whether someone is aiming
to integrate storage controllers support into DPDK, and this patch
could be instrumental.

--
Dan Aloni


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