RDMA/ocrdma: Debugfs enhancments for ocrdma driver

1. Add statistics counters for error cqes.
2. Add file ("reset_stats") to reset rdma stats in Debugfs.

Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com>
Signed-off-by: Mitesh Ahuja <mitesh.ahuja@emulex.com>
Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_sli.h b/drivers/infiniband/hw/ocrdma/ocrdma_sli.h
index e252f1b..6ba9939 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_sli.h
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_sli.h
@@ -443,7 +443,9 @@
 	OCRDMA_DEVICE_FATAL_EVENT	= 0x08,
 	OCRDMA_SRQCAT_ERROR		= 0x0E,
 	OCRDMA_SRQ_LIMIT_EVENT		= 0x0F,
-	OCRDMA_QP_LAST_WQE_EVENT	= 0x10
+	OCRDMA_QP_LAST_WQE_EVENT	= 0x10,
+
+	OCRDMA_MAX_ASYNC_ERRORS
 };
 
 /* mailbox command request and responses */
@@ -1630,7 +1632,9 @@
 	OCRDMA_CQE_INV_EEC_STATE_ERR,
 	OCRDMA_CQE_FATAL_ERR,
 	OCRDMA_CQE_RESP_TIMEOUT_ERR,
-	OCRDMA_CQE_GENERAL_ERR
+	OCRDMA_CQE_GENERAL_ERR,
+
+	OCRDMA_MAX_CQE_ERR
 };
 
 enum {