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IB/core: add support to create a unsafe global rkey to ib_create_pd

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Instead of exposing ib_get_dma_mr to ULPs and letting them use it more or
less unchecked, this moves the capability of creating a global rkey into
the RDMA core, where it can be easily audited.  It also prints a warning
everytime this feature is used as well.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Christoph Hellwig
2016-09-05 12:56:17 +02:00
committed by Doug Ledford
parent 50d46335b0
commit ed082d36a7
18 changed files with 57 additions and 22 deletions
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2
drivers/nvme/host/rdma.c
View File

@@ -446,7 +446,7 @@ nvme_rdma_find_get_device(struct rdma_cm_id *cm_id)
ndev->dev = cm_id->device;
kref_init(&ndev->ref);
ndev->pd = ib_alloc_pd(ndev->dev);
ndev->pd = ib_alloc_pd(ndev->dev, 0);
if (IS_ERR(ndev->pd))
goto out_free_dev;

2
drivers/nvme/target/rdma.c
View File

@@ -848,7 +848,7 @@ nvmet_rdma_find_get_device(struct rdma_cm_id *cm_id)
ndev->device = cm_id->device;
kref_init(&ndev->ref);
ndev->pd = ib_alloc_pd(ndev->device);
ndev->pd = ib_alloc_pd(ndev->device, 0);
if (IS_ERR(ndev->pd))
goto out_free_dev;