hw/rdma: Add ability to force notification without re-arm

Upon completion of incoming packet the device pushes CQE to driver's RX
ring and notify the driver (msix).
While for data-path incoming packets the driver needs the ability to
control whether it wished to receive interrupts or not, for control-path
packets such as incoming MAD the driver needs to be notified anyway, it
even do not need to re-arm the notification bit.

Enhance the notification field to support this.

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/hw/rdma/rdma_rm_defs.h b/hw/rdma/rdma_rm_defs.h
index 7228151239..9b399063d3 100644
--- a/hw/rdma/rdma_rm_defs.h
+++ b/hw/rdma/rdma_rm_defs.h
@@ -49,10 +49,16 @@ typedef struct RdmaRmPD {
     uint32_t ctx_handle;
 } RdmaRmPD;
 
+typedef enum CQNotificationType {
+    CNT_CLEAR,
+    CNT_ARM,
+    CNT_SET,
+} CQNotificationType;
+
 typedef struct RdmaRmCQ {
     RdmaBackendCQ backend_cq;
     void *opaque;
-    bool notify;
+    CQNotificationType notify;
 } RdmaRmCQ;
 
 /* MR (DMA region) */