DMA window size needs to be big enough to span all memory segment's
physical addresses. We do not need multiple levels of IOMMU tables
as we already span ~70TB of physical memory with 16MB hugepages.
Signed-off-by: Jonas Pfefferle
---
v2:
* roundup to next power 2 function without loop.
v3:
* Re
From: Jonas Pfefferle [mailto:j...@zurich.ibm.com]
> Sent: Tuesday, August 8, 2017 9:41 AM
> To: Burakov, Anatoly
> Cc: dev@dpdk.org; a...@ozlabs.ru; Jonas Pfefferle
> Subject: [PATCH v3] vfio: fix sPAPR IOMMU DMA window size
>
> DMA window size needs to be big enough to span all memory segment'
"Burakov, Anatoly" wrote on 08/08/2017 11:15:24
AM:
> From: "Burakov, Anatoly"
> To: Jonas Pfefferle
> Cc: "dev@dpdk.org" , "a...@ozlabs.ru"
> Date: 08/08/2017 11:18 AM
> Subject: RE: [PATCH v3] vfio: fix sPAPR IOMMU DMA window size
>
> From: Jonas Pfefferle [mailto:j...@zurich.ibm.com]
> > Se
> From: Jonas Pfefferle1 [mailto:j...@zurich.ibm.com]
> Sent: Tuesday, August 8, 2017 10:30 AM
> To: Burakov, Anatoly
> Cc: a...@ozlabs.ru; dev@dpdk.org
> Subject: RE: [PATCH v3] vfio: fix sPAPR IOMMU DMA window size
>
> "Burakov, Anatoly" wrote on 08/08/2017
> 11:15:24 AM:
>
> > From: "Burakov
"Burakov, Anatoly" wrote on 08/08/2017 11:43:43
AM:
> From: "Burakov, Anatoly"
> To: Jonas Pfefferle1
> Cc: "a...@ozlabs.ru" , "dev@dpdk.org"
> Date: 08/08/2017 11:43 AM
> Subject: RE: [PATCH v3] vfio: fix sPAPR IOMMU DMA window size
>
> > From: Jonas Pfefferle1 [mailto:j...@zurich.ibm.com]
>
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