On Fri, Nov 07, 2025 at 10:58:27AM -0800, Randy Dunlap wrote:
On 11/7/25 8:01 AM, Leon Romanovsky wrote:
On Thu, Nov 06, 2025 at 10:15:07PM -0800, Randy Dunlap wrote:
On 11/6/25 6:16 AM, Leon Romanovsky wrote:
From: Jason Gunthorpe jgg@nvidia.com
Reflect latest changes in p2p implementation to support DMABUF lifecycle.
Signed-off-by: Leon Romanovsky leonro@nvidia.com Signed-off-by: Jason Gunthorpe jgg@nvidia.com
Documentation/driver-api/pci/p2pdma.rst | 95 +++++++++++++++++++++++++-------- 1 file changed, 72 insertions(+), 23 deletions(-)
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-The second issue is that to make use of existing interfaces in Linux, -memory that is used for P2P transactions needs to be backed by struct -pages. However, PCI BARs are not typically cache coherent so there are -a few corner case gotchas with these pages so developers need to -be careful about what they do with them. +For PCIe the routing of TLPs is well defined up until they reach a host bridge
Define what TLP means?
In PCIe "world", TLP is very well-known and well-defined acronym, which means Transaction Layer Packet.
It's your choice (or Bjorn's). I'm just reviewing...
Thanks a lot.