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authorJason Gunthorpe <jgunthorpe@obsidianresearch.com>2015-08-05 14:14:45 -0600
committerDoug Ledford <dledford@redhat.com>2015-08-30 18:12:33 -0400
commit96249d70dd70496084c7ec1465ec449cd032955a (patch)
tree0d49858551021820aad61780788b8b5fdcc04870 /include/rdma
parent7332bed085c68fc76462583a1003c6dca2c31e11 (diff)
IB/core: Guarantee that a local_dma_lkey is available
Every single ULP requires a local_dma_lkey to do anything with a QP, so let us ensure one exists for every PD created. If the driver can supply a global local_dma_lkey then use that, otherwise ask the driver to create a local use all physical memory MR associated with the new PD. Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Reviewed-by: Sagi Grimberg <sagig@dev.mellanox.co.il> Acked-by: Christoph Hellwig <hch@infradead.org> Reviewed-by: Steve Wise <swise@opengridcomputing.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Tested-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'include/rdma')
-rw-r--r--include/rdma/ib_verbs.h9
1 files changed, 2 insertions, 7 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 5eff55c8b39d..09400512d579 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -1257,9 +1257,11 @@ struct ib_udata {
};
struct ib_pd {
+ u32 local_dma_lkey;
struct ib_device *device;
struct ib_uobject *uobject;
atomic_t usecnt; /* count all resources */
+ struct ib_mr *local_mr;
};
struct ib_xrcd {
@@ -2192,13 +2194,6 @@ int ib_find_gid(struct ib_device *device, union ib_gid *gid,
int ib_find_pkey(struct ib_device *device,
u8 port_num, u16 pkey, u16 *index);
-/**
- * ib_alloc_pd - Allocates an unused protection domain.
- * @device: The device on which to allocate the protection domain.
- *
- * A protection domain object provides an association between QPs, shared
- * receive queues, address handles, memory regions, and memory windows.
- */
struct ib_pd *ib_alloc_pd(struct ib_device *device);
/**

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