diff mbox series

[RFT,v2,2/3] rte_pie: remove unnecessary floating point

Message ID 20220524221824.1037693-3-stephen@networkplumber.org (mailing list archive)
State Superseded, archived
Delegated to: Thomas Monjalon
Headers
Series pie: fix random number issues |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Stephen Hemminger May 24, 2022, 10:18 p.m. UTC 
  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: wojciechx.liguzinski@intel.com
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 lib/sched/rte_pie.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/lib/sched/rte_pie.h b/lib/sched/rte_pie.h
index 02a987f54ad1..3e2c1ef46721 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)) ||