* [PATCH] opensm/osm_congestion_control.c: Skip TID 0 on 32 bit wraparound
@ 2012-07-31 16:27 Hal Rosenstock
0 siblings, 0 replies; only message in thread
From: Hal Rosenstock @ 2012-07-31 16:27 UTC (permalink / raw)
To: Alex Netes
Cc: linux-rdma (linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org),
Chu, Al
Signed-off-by: Hal Rosenstock <hal-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
---
diff --git a/opensm/osm_congestion_control.c b/opensm/osm_congestion_control.c
index 640f3fa..9a9dfcd 100644
--- a/opensm/osm_congestion_control.c
+++ b/opensm/osm_congestion_control.c
@@ -82,7 +82,12 @@ static void cc_mad_post(osm_congestion_control_t *p_cc,
p_cc_mad->header.status = 0;
p_cc_mad->header.class_spec = 0;
p_cc_mad->header.trans_id =
- cl_hton64((uint64_t) cl_atomic_inc(&p_cc->trans_id));
+ cl_hton64((uint64_t) cl_atomic_inc(&p_cc->trans_id) &
+ (uint64_t) (0xFFFFFFFF));
+ if (p_cc_mad->header.trans_id == 0)
+ p_cc_mad->header.trans_id =
+ cl_hton64((uint64_t) cl_atomic_inc(&p_cc->trans_id) &
+ (uint64_t) (0xFFFFFFFF));
p_cc_mad->header.attr_id = attr_id;
p_cc_mad->header.resv = 0;
p_cc_mad->header.attr_mod = attr_mod;
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2012-07-31 16:27 [PATCH] opensm/osm_congestion_control.c: Skip TID 0 on 32 bit wraparound Hal Rosenstock
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