diff options
| author | Jason Gunthorpe <jgunthorpe@obsidianresearch.com> | 2015-08-05 14:14:45 -0600 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2015-08-30 18:12:33 -0400 |
| commit | 96249d70dd70496084c7ec1465ec449cd032955a (patch) | |
| tree | 0d49858551021820aad61780788b8b5fdcc04870 /include/rdma | |
| parent | 7332bed085c68fc76462583a1003c6dca2c31e11 (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.h | 9 |
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); /** |