Add async_event callback function to struct ibv_context_ops

Add a callback function so low-level driver libraries can get a
callback with each async event retrieved by the user.  It allows the
bypass library to do WQ or CQ processing that needs to happen when a
fatal async event happens.  This async callback is similar to the
cq_event callback that already exists in libibverbs.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

diff --git a/include/infiniband/verbs.h b/include/infiniband/verbs.h
index c5c9dcdc75cecface59b2d2f3cf4a4934f9e3a17..49cd581ae59e3f0033e7b2a48b11e3baa88d6fba 100644 (file)
--- a/include/infiniband/verbs.h
+++ b/include/infiniband/verbs.h
@@ -640,6 +640,7 @@ struct ibv_context_ops {
                                                uint16_t lid);
        int                     (*detach_mcast)(struct ibv_qp *qp, union ibv_gid *gid,
                                                uint16_t lid);
+       void                    (*async_event)(struct ibv_async_event *event);
 };
 
 struct ibv_context {

diff --git a/src/device.c b/src/device.c
index 381f9d6639ebdaa11a8dbbf578bd80c6b3772ec6..3bfbca69b264ac3ce50ea1d7f2194d64b0338bd7 100644 (file)
--- a/src/device.c
+++ b/src/device.c
@@ -196,6 +196,9 @@ int ibv_get_async_event(struct ibv_context *context,
                break;
        }
 
+       if (context->ops.async_event)
+               context->ops.async_event(event);
+
        return 0;
 }