Messages in this thread | | | From | Logan Gunthorpe <> | Date | Wed, 2 May 2018 09:56:09 -0600 | Subject | Re: [PATCH v4 00/14] Copy Offload in NVMe Fabrics with P2P PCI Memory |
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Hi Christian,
On 5/2/2018 5:51 AM, Christian König wrote: > it would be rather nice to have if you could separate out the functions > to detect if peer2peer is possible between two devices.
This would essentially be pci_p2pdma_distance() in the existing patchset. It returns the sum of the distance between a list of clients and a P2PDMA provider. It returns -1 if peer2peer is not possible between the devices (presently this means they are not behind the same root port).
Logan
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