Re: [PATCH v2 4/6] powerpc/pseries/iommu: Remove default DMA window before creating DDW

2020-07-01 Thread Alexey Kardashevskiy
On 02/07/2020 05:48, Leonardo Bras wrote: > On Wed, 2020-07-01 at 18:17 +1000, Alexey Kardashevskiy wrote: >> >> On 24/06/2020 16:24, Leonardo Bras wrote: >>> On LoPAR "DMA Window Manipulation Calls", it's recommended to remove the >>> default DMA window for the device, before attempting to

Re: [PATCH v2 4/6] powerpc/pseries/iommu: Remove default DMA window before creating DDW

2020-07-01 Thread Leonardo Bras
On Wed, 2020-07-01 at 18:17 +1000, Alexey Kardashevskiy wrote: > > On 24/06/2020 16:24, Leonardo Bras wrote: > > On LoPAR "DMA Window Manipulation Calls", it's recommended to remove the > > default DMA window for the device, before attempting to configure a DDW, > > in order to make the maximum

Re: [PATCH v2 4/6] powerpc/pseries/iommu: Remove default DMA window before creating DDW

2020-07-01 Thread Alexey Kardashevskiy
On 24/06/2020 16:24, Leonardo Bras wrote: > On LoPAR "DMA Window Manipulation Calls", it's recommended to remove the > default DMA window for the device, before attempting to configure a DDW, > in order to make the maximum resources available for the next DDW to be > created. > > This is a