IB: Add ib_init_ah_from_wc()
Add a function to initialize address handle attributes from a work
completion. This functionality is duplicated by both verbs and the CM.
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 10a6268..7ced208 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -1088,6 +1088,20 @@
struct ib_ah *ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr);
/**
+ * ib_init_ah_from_wc - Initializes address handle attributes from a
+ * work completion.
+ * @device: Device on which the received message arrived.
+ * @port_num: Port on which the received message arrived.
+ * @wc: Work completion associated with the received message.
+ * @grh: References the received global route header. This parameter is
+ * ignored unless the work completion indicates that the GRH is valid.
+ * @ah_attr: Returned attributes that can be used when creating an address
+ * handle for replying to the message.
+ */
+int ib_init_ah_from_wc(struct ib_device *device, u8 port_num, struct ib_wc *wc,
+ struct ib_grh *grh, struct ib_ah_attr *ah_attr);
+
+/**
* ib_create_ah_from_wc - Creates an address handle associated with the
* sender of the specified work completion.
* @pd: The protection domain associated with the address handle.