# This patch was developed both in-house and from outside. We plan to submit it
# upstream, but do not yet have a target date for doing so
# 
# HG changeset patch
# Parent  88a36501a87e8091b564f83dbb5a4f735c20abb1
23302428 Re-enabling an already enabled IB port resets the port

diff -r 88a36501a87e src/ibportstate.c
--- a/src/ibportstate.c	Tue Aug 09 11:44:09 2016 -0700
+++ b/src/ibportstate.c	Tue Aug 09 11:57:05 2016 -0700
@@ -563,7 +563,14 @@
 				printf("Port is already in enable state\n");
 				goto close_port;
 			}
+			mad_set_field(data, 0, IB_PORT_PHYS_STATE_F, 2);
+                       break;
 		case ENABLE:
+			/* Do not have to enable a port which is already in ENABLE state */
+			if(physstate == 5) {
+				printf("Port is already in enable state, no need to re-enable\n");
+				goto close_port;
+			}
 		case RESET:
 			/* Polling */
 			mad_set_field(data, 0, IB_PORT_PHYS_STATE_F, 2);