Re: IB_MR_TYPE_SG_GAPS support
From: Jason Gunthorpe <jgg@ziepe.ca>
Date: 2021-08-26 23:45:48
On Thu, Aug 26, 2021 at 05:26:11PM +0000, Chuck Lever III wrote:
If GPU and CPU pages are not considered contiguous, then some additional loop termination logic is needed here so that at a boundary between page types, xprtrdma will simply move into a fresh MR instead of coalescing.
Upstream Linux does not have support for GPU pages in the RDMA stack. Jason