Re: [dpdk-dev] [PATCH v4] vfio: fix sPAPR IOMMU DMA window size

2017-10-10 Thread Thomas Monjalon
08/08/2017 14:06, Burakov, Anatoly: > > From: Jonas Pfefferle [mailto:j...@zurich.ibm.com] > > Sent: Tuesday, August 8, 2017 12:17 PM > > To: Burakov, Anatoly > > Cc: dev@dpdk.org; a...@ozlabs.ru; Jonas Pfefferle > > Subject: [PATCH v4] vfio: fix sPAPR IOMMU DMA window size > > > > DMA window si

Re: [dpdk-dev] [PATCH v4] vfio: fix sPAPR IOMMU DMA window size

2017-10-10 Thread Jonas Pfefferle1
Hi Thomas, Can you please apply this patch? Thanks, Jonas Alexey Kardashevskiy wrote on 08/10/2017 08:03:17 AM: > From: Alexey Kardashevskiy > To: Jonas Pfefferle , anatoly.bura...@intel.com > Cc: dev@dpdk.org > Date: 08/10/2017 08:03 AM > Subject: Re: [PATCH v4] vfio: fix sPAPR IOMMU DMA win

Re: [dpdk-dev] [PATCH v4] vfio: fix sPAPR IOMMU DMA window size

2017-08-09 Thread Alexey Kardashevskiy
On 08/08/17 21:16, Jonas Pfefferle wrote: > 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 Reviewed-by:

Re: [dpdk-dev] [PATCH v4] vfio: fix sPAPR IOMMU DMA window size

2017-08-08 Thread Burakov, Anatoly
> From: Jonas Pfefferle [mailto:j...@zurich.ibm.com] > Sent: Tuesday, August 8, 2017 12:17 PM > To: Burakov, Anatoly > Cc: dev@dpdk.org; a...@ozlabs.ru; Jonas Pfefferle > Subject: [PATCH v4] vfio: fix sPAPR IOMMU DMA window size > > DMA window size needs to be big enough to span all memory segme

[dpdk-dev] [PATCH v4] vfio: fix sPAPR IOMMU DMA window size

2017-08-08 Thread Jonas Pfefferle
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