From: Stephen Hemminger <stephen@networkplumber.org>
Date: Thu, 26 May 2022 20:26:52 +0000 (-0700)
Subject: sched: remove unnecessary floating point
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=bb421e98c0c0f56f1adc68722a54d6d24abf137d;p=dpdk.git

sched: remove unnecessary floating point

The qdelay variable is derived from and compared to 64 bit
value so it doesn't have to be floating point.

Fixes: 44c730b0e379 ("sched: add PIE based congestion management")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Jasvinder Singh <jasvinder.singh@intel.com>
---

diff --git a/lib/sched/rte_pie.h b/lib/sched/rte_pie.h
index 02a987f54a..3e2c1ef467 100644
--- a/lib/sched/rte_pie.h
+++ b/lib/sched/rte_pie.h
@@ -218,7 +218,7 @@ _rte_pie_drop(const struct rte_pie_config *pie_cfg,
 	struct rte_pie *pie)
 {
 	uint64_t rand_value;
-	double qdelay = pie_cfg->qdelay_ref * 0.5;
+	uint64_t qdelay = pie_cfg->qdelay_ref / 2;
 
 	/* PIE is active but the queue is not congested: return 0 */
 	if (((pie->qdelay_old < qdelay) && (pie->drop_prob < 0.2)) ||