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authorSean Hefty <sean.hefty@intel.com>2006-11-30 16:44:16 -0800
committerRoland Dreier <rolandd@cisco.com>2006-12-12 11:50:21 -0800
commit628e5f6d39d5a6be96c1272a6709f2dd3ec8b7ce (patch)
tree91cd315e0bbc7873366fd589d69b4f182a1fd854 /include/rdma
parentRDMA/cma: Allow early transition to RTS to handle lost CM messages (diff)
downloadlinux-dev-628e5f6d39d5a6be96c1272a6709f2dd3ec8b7ce.tar.xz
linux-dev-628e5f6d39d5a6be96c1272a6709f2dd3ec8b7ce.zip
RDMA/cma: Add support for RDMA_PS_UDP
Allow the use of UD QPs through the rdma_cm, in order to provide address translation services for resolving IB addresses for datagram messages using SIDR. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'include/rdma')
-rw-r--r--include/rdma/rdma_cm.h15
-rw-r--r--include/rdma/rdma_cm_ib.h3
2 files changed, 18 insertions, 0 deletions
diff --git a/include/rdma/rdma_cm.h b/include/rdma/rdma_cm.h
index 6b8ec486d06b..36cd8a8526a0 100644
--- a/include/rdma/rdma_cm.h
+++ b/include/rdma/rdma_cm.h
@@ -90,11 +90,20 @@ struct rdma_conn_param {
u32 qp_num;
};
+struct rdma_ud_param {
+ const void *private_data;
+ u8 private_data_len;
+ struct ib_ah_attr ah_attr;
+ u32 qp_num;
+ u32 qkey;
+};
+
struct rdma_cm_event {
enum rdma_cm_event_type event;
int status;
union {
struct rdma_conn_param conn;
+ struct rdma_ud_param ud;
} param;
};
@@ -220,9 +229,15 @@ int rdma_init_qp_attr(struct rdma_cm_id *id, struct ib_qp_attr *qp_attr,
/**
* rdma_connect - Initiate an active connection request.
+ * @id: Connection identifier to connect.
+ * @conn_param: Connection information used for connected QPs.
*
* Users must have resolved a route for the rdma_cm_id to connect with
* by having called rdma_resolve_route before calling this routine.
+ *
+ * This call will either connect to a remote QP or obtain remote QP
+ * information for unconnected rdma_cm_id's. The actual operation is
+ * based on the rdma_cm_id's port space.
*/
int rdma_connect(struct rdma_cm_id *id, struct rdma_conn_param *conn_param);
diff --git a/include/rdma/rdma_cm_ib.h b/include/rdma/rdma_cm_ib.h
index e8c3af1804d4..9b176df1d667 100644
--- a/include/rdma/rdma_cm_ib.h
+++ b/include/rdma/rdma_cm_ib.h
@@ -44,4 +44,7 @@
int rdma_set_ib_paths(struct rdma_cm_id *id,
struct ib_sa_path_rec *path_rec, int num_paths);
+/* Global qkey for UD QPs and multicast groups. */
+#define RDMA_UD_QKEY 0x01234567
+
#endif /* RDMA_CM_IB_H */