From: Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
To: "J.L. Burr" <jlburr-vna1KIf7WgpBDgjK7y7TUQ@public.gmane.org>
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH 00/10] IB: Replace safe uses for ib_get_dma_mr with pd->local_dma_lkey
Date: Tue, 28 Jul 2015 12:23:56 -0600 [thread overview]
Message-ID: <20150728182356.GA1712@obsidianresearch.com> (raw)
In-Reply-To: <mp85i7$6hc$1@ger.gmane.org>
On Tue, Jul 28, 2015 at 11:01:12AM -0400, J.L. Burr wrote:
> We use ib_get_dma_mr with IB_ACCESS_REMOTE_* flags in an embedded
> device environment (in a custom out-of-tree device driver). Not to
> allow remote access to CPU memory but to allow remote access to PCIe
> device memory (the IB card makes peer accesses directly to other
> PCIe devices).
Why can't you create a proper MR that only exposes the PCI device's
BAR?
Jason
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next prev parent reply other threads:[~2015-07-28 18:23 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-22 23:34 [PATCH 00/10] IB: Replace safe uses for ib_get_dma_mr with pd->local_dma_lkey Jason Gunthorpe
2015-07-22 23:34 ` [PATCH 01/10] IB/core: Guarantee that a local_dma_lkey is available Jason Gunthorpe
2015-07-23 10:47 ` Sagi Grimberg
2015-07-23 18:36 ` Jason Gunthorpe
2015-07-22 23:34 ` [PATCH 04/10] IB/mlx4: Remove ib_get_dma_mr calls Jason Gunthorpe
2015-07-22 23:34 ` [PATCH 05/10] IB/mlx5: " Jason Gunthorpe
2015-07-22 23:34 ` [PATCH 06/10] IB/iser: Use pd->local_dma_lkey Jason Gunthorpe
2015-07-23 10:49 ` Sagi Grimberg
[not found] ` <1437608083-22898-1-git-send-email-jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-07-22 23:34 ` [PATCH 02/10] IB/mad: Remove ib_get_dma_mr calls Jason Gunthorpe
2015-07-22 23:34 ` [PATCH 03/10] IB/ipoib: " Jason Gunthorpe
2015-07-22 23:34 ` [PATCH 07/10] iser-target: " Jason Gunthorpe
2015-07-23 10:49 ` Sagi Grimberg
2015-07-22 23:34 ` [PATCH 08/10] IB/srp: Use pd->local_dma_lkey Jason Gunthorpe
[not found] ` <1437608083-22898-9-git-send-email-jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-07-23 10:50 ` Sagi Grimberg
2015-07-22 23:34 ` [PATCH 09/10] ib_srpt: Remove ib_get_dma_mr calls Jason Gunthorpe
2015-07-23 10:51 ` Sagi Grimberg
2015-07-22 23:34 ` [PATCH 10/10] net/9p: " Jason Gunthorpe
2015-07-23 7:46 ` Dominique Martinet
2015-07-23 10:56 ` [PATCH 00/10] IB: Replace safe uses for ib_get_dma_mr with pd->local_dma_lkey Sagi Grimberg
2015-07-23 13:47 ` Bart Van Assche
2015-07-23 18:30 ` Jason Gunthorpe
[not found] ` <20150723183044.GA1868-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-07-23 18:42 ` Bart Van Assche
[not found] ` <55B13583.5010208-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2015-07-23 18:47 ` Jason Gunthorpe
2015-07-26 8:45 ` Sagi Grimberg
2015-07-29 16:39 ` Doug Ledford
2015-07-25 6:27 ` Christoph Hellwig
2015-07-28 15:01 ` J.L. Burr
2015-07-28 18:23 ` Jason Gunthorpe [this message]
2015-07-28 20:58 ` J.L. Burr
2015-07-28 22:10 ` Jason Gunthorpe
2015-07-28 23:56 ` J.L. Burr
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