Thread (1 message) 1 message, 1 author, 2016-08-29

Re: move unsafe global rkey handling to the RDMA core

From: Jason Gunthorpe <hidden>
Date: 2016-08-29 16:42:55

Possibly related (same subject, not in this thread)

On Mon, Aug 29, 2016 at 12:02:17PM +0200, Christoph Hellwig wrote:
This fairly simply series adds support to ib_alloc_pd to create the unsafe
global rkey in the IB core, and then switches over all ULPs to use that
functionality instead of using ib_get_dma_mr directly, and consequently
removes ib_get_dma_mr now that all global registrations are done in the
core code.

The advantage is that abuses of ib_get_dma_mr are more easily prevented,
and use of the global unsafe rkey is more visible and auditable.

I'm also pondering removing the get_dma_mr methods and moving the global
registrations into the ->alloc_pd methods, but I'll need to investigate
how that will work out first.
This looks good to me:

Reviewed-by: Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>

Jason
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