diff options
| author | Steve Wise <swise@opengridcomputing.com> | 2018-05-10 07:31:36 -0700 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2018-05-22 14:32:30 -0400 |
| commit | fbdb0a9181cb4c489a857f6bf71648276c85969c (patch) | |
| tree | aa2b0dd64c9f4c769560fb9aa33d21659c5cff4e /drivers/infiniband | |
| parent | b06f2efd3bbe522ee0e118c3f29497c857d97f8b (diff) | |
RDMA/CMA: add rdma_iw_cm_id() and rdma_res_to_id() helpers
Add a helper function for iwarp drivers to be able to map an
rdma_cm_id to an iw_cm_id. This is useful for dumping driver specific
NLDEV/RESTRACK connection state.
Add a helper to return the rdma_cm_id pointer from the rdma_restack
pointer. This is needed for rdma drivers to map a res entry back to
the public rdma_cm_id struct.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/core/cma.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index a403e679c6c1..441555a35525 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -146,6 +146,34 @@ const void *rdma_consumer_reject_data(struct rdma_cm_id *id, } EXPORT_SYMBOL(rdma_consumer_reject_data); +/** + * rdma_iw_cm_id() - return the iw_cm_id pointer for this cm_id. + * @id: Communication Identifier + */ +struct iw_cm_id *rdma_iw_cm_id(struct rdma_cm_id *id) +{ + struct rdma_id_private *id_priv; + + id_priv = container_of(id, struct rdma_id_private, id); + if (id->device->node_type == RDMA_NODE_RNIC) + return id_priv->cm_id.iw; + return NULL; +} +EXPORT_SYMBOL(rdma_iw_cm_id); + +/** + * rdma_res_to_id() - return the rdma_cm_id pointer for this restrack. + * @res: rdma resource tracking entry pointer + */ +struct rdma_cm_id *rdma_res_to_id(struct rdma_restrack_entry *res) +{ + struct rdma_id_private *id_priv = + container_of(res, struct rdma_id_private, res); + + return &id_priv->id; +} +EXPORT_SYMBOL(rdma_res_to_id); + static void cma_add_one(struct ib_device *device); static void cma_remove_one(struct ib_device *device, void *client_data); |