Re: PCIe PASID (Process Address Space ID) and iommu code

2014-10-16 Thread Joerg Roedel
On Wed, Oct 15, 2014 at 09:50:58PM -0600, Bjorn Helgaas wrote: > [+cc Joerg, Suravee, Jay, iommu list, linux-pci] > > On Wed, Oct 15, 2014 at 5:44 PM, Kallol Biswas wrote: > > Resending, as message got bounced for html content. > > > > Hi, > >

Re: PCIe PASID (Process Address Space ID) and iommu code

2014-10-16 Thread Joerg Roedel
On Wed, Oct 15, 2014 at 09:50:58PM -0600, Bjorn Helgaas wrote: [+cc Joerg, Suravee, Jay, iommu list, linux-pci] On Wed, Oct 15, 2014 at 5:44 PM, Kallol Biswas nucleod...@gmail.com wrote: Resending, as message got bounced for html content. Hi,

Re: PCIe PASID (Process Address Space ID) and iommu code

2014-10-15 Thread Bjorn Helgaas
[+cc Joerg, Suravee, Jay, iommu list, linux-pci] On Wed, Oct 15, 2014 at 5:44 PM, Kallol Biswas wrote: > Resending, as message got bounced for html content. > > Hi, > PCIe has introduced PASID TLP Prefix. There are two ECNs on this. > > It seems

PCIe PASID (Process Address Space ID) and iommu code

2014-10-15 Thread Kallol Biswas
Resending, as message got bounced for html content. Hi, PCIe has introduced PASID TLP Prefix. There are two ECNs on this. It seems that AMD iommu code makes use of PASID. Is there a device that utilizes this TLP prefix? PASID allocation and

Re: PCIe PASID (Process Address Space ID) and iommu code

2014-10-15 Thread Kallol Biswas
Hi, PCIe has introduced PASID TLP Prefix. There are two ECNs on this. It seems that AMD iommu code makes use of PASID. Is there a device that utilizes this TLP prefix? PASID allocation and management within a device is not clear to me. How does device know which PASID to issue for with

Re: PCIe PASID (Process Address Space ID) and iommu code

2014-10-15 Thread Kallol Biswas
Hi, PCIe has introduced PASID TLP Prefix. There are two ECNs on this. It seems that AMD iommu code makes use of PASID. Is there a device that utilizes this TLP prefix? PASID allocation and management within a device is not clear to me. How does device know which PASID to issue for with

PCIe PASID (Process Address Space ID) and iommu code

2014-10-15 Thread Kallol Biswas
Resending, as message got bounced for html content. Hi, PCIe has introduced PASID TLP Prefix. There are two ECNs on this. It seems that AMD iommu code makes use of PASID. Is there a device that utilizes this TLP prefix? PASID allocation and

Re: PCIe PASID (Process Address Space ID) and iommu code

2014-10-15 Thread Bjorn Helgaas
[+cc Joerg, Suravee, Jay, iommu list, linux-pci] On Wed, Oct 15, 2014 at 5:44 PM, Kallol Biswas nucleod...@gmail.com wrote: Resending, as message got bounced for html content. Hi, PCIe has introduced PASID TLP Prefix. There are two ECNs on