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From: Joyce Kong <joyce.kong@arm.com>
Cc: dev@dpdk.org, honnappa.nagarahalli@arm.com, nd@arm.com,
	Joyce Kong <joyce.kong@arm.com>,
	Ruifeng Wang <ruifeng.wang@arm.com>
Subject: [PATCH v2 01/12] test/pmd_perf: use compiler atomic builtins for polling sync
Date: Tue, 16 Nov 2021 09:41:54 +0000	[thread overview]
Message-ID: <20211116094205.750359-2-joyce.kong@arm.com> (raw)
In-Reply-To: <20211116094205.750359-1-joyce.kong@arm.com>

Convert rte_atomic usages to compiler atomic built-ins
for polling sync in pmd_perf test cases.

Signed-off-by: Joyce Kong <joyce.kong@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
---
 app/test/test_pmd_perf.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/app/test/test_pmd_perf.c b/app/test/test_pmd_perf.c
index 1df86ce080..546384a50d 100644
--- a/app/test/test_pmd_perf.c
+++ b/app/test/test_pmd_perf.c
@@ -10,7 +10,6 @@
 #include <rte_cycles.h>
 #include <rte_ethdev.h>
 #include <rte_byteorder.h>
-#include <rte_atomic.h>
 #include <rte_malloc.h>
 #include "packet_burst_generator.h"
 #include "test.h"
@@ -525,7 +524,7 @@ main_loop(__rte_unused void *args)
 	return 0;
 }
 
-static rte_atomic64_t start;
+static uint64_t start;
 
 static inline int
 poll_burst(void *args)
@@ -563,8 +562,7 @@ poll_burst(void *args)
 		num[portid] = pkt_per_port;
 	}
 
-	while (!rte_atomic64_read(&start))
-		;
+	rte_wait_until_equal_64(&start, 1, __ATOMIC_ACQUIRE);
 
 	cur_tsc = rte_rdtsc();
 	while (total) {
@@ -616,15 +614,15 @@ exec_burst(uint32_t flags, int lcore)
 	pkt_per_port = MAX_TRAFFIC_BURST;
 	num = pkt_per_port * conf->nb_ports;
 
-	rte_atomic64_init(&start);
-
 	/* start polling thread, but not actually poll yet */
 	rte_eal_remote_launch(poll_burst,
 			      (void *)&pkt_per_port, lcore);
 
 	/* Only when polling first */
 	if (flags == SC_BURST_POLL_FIRST)
-		rte_atomic64_set(&start, 1);
+		__atomic_store_n(&start, 1, __ATOMIC_RELAXED);
+	else
+		__atomic_store_n(&start, 0, __ATOMIC_RELAXED);
 
 	/* start xmit */
 	i = 0;
@@ -641,7 +639,7 @@ exec_burst(uint32_t flags, int lcore)
 
 	/* only when polling second  */
 	if (flags == SC_BURST_XMIT_FIRST)
-		rte_atomic64_set(&start, 1);
+		__atomic_store_n(&start, 1, __ATOMIC_RELEASE);
 
 	/* wait for polling finished */
 	diff_tsc = rte_eal_wait_lcore(lcore);
-- 
2.25.1


  reply	other threads:[~2021-11-16  9:42 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-16  9:41 [PATCH v2 00/12] use compiler atomic builtins for app modules Joyce Kong
2021-11-16  9:41 ` Joyce Kong [this message]
2021-11-16 21:30   ` [PATCH v2 01/12] test/pmd_perf: use compiler atomic builtins for polling sync Honnappa Nagarahalli
2021-11-16  9:41 ` [PATCH v2 02/12] test/ring_perf: use compiler atomic builtins for lcores sync Joyce Kong
2021-11-16  9:41 ` [PATCH v2 03/12] test/timer: use compiler atomic builtins for sync Joyce Kong
2021-11-16 19:52   ` Honnappa Nagarahalli
2021-11-16 20:20   ` David Marchand
2021-11-16 21:21     ` Honnappa Nagarahalli
2021-11-17  9:29       ` David Marchand
2021-11-16  9:41 ` [PATCH v2 04/12] test/stack_perf: use compiler atomics for lcore sync Joyce Kong
2021-11-16  9:41 ` [PATCH v2 05/12] test/bpf: use compiler atomics for calculation Joyce Kong
2021-11-16  9:41 ` [PATCH v2 06/12] test/func_reentrancy: use compiler atomics for data sync Joyce Kong
2021-11-16  9:42 ` [PATCH v2 07/12] app/eventdev: use compiler atomics for shared " Joyce Kong
2021-11-16  9:42 ` [PATCH v2 08/12] app/crypto: use compiler atomic builtins for display sync Joyce Kong
2021-11-16  9:42 ` [PATCH v2 09/12] app/compress: " Joyce Kong
2021-11-16 20:15   ` Honnappa Nagarahalli
2021-11-16  9:42 ` [PATCH v2 10/12] app/testpmd: remove atomic operations for port status Joyce Kong
2021-11-16 21:34   ` Honnappa Nagarahalli
2021-11-16  9:42 ` [PATCH v2 11/12] app/bbdev: use compiler atomics for shared data sync Joyce Kong
2021-11-16  9:42 ` [PATCH v2 12/12] app: remove unnecessary include of atomic header file Joyce Kong
2021-11-16 20:23   ` David Marchand
2021-11-17  7:05     ` Joyce Kong
2021-11-17  8:21 ` [PATCH v3 00/12] use compiler atomic builtins for app modules Joyce Kong
2021-11-17  8:21   ` [PATCH v3 01/12] test/pmd_perf: use compiler atomic builtins for polling sync Joyce Kong
2021-11-17  8:21   ` [PATCH v3 02/12] test/ring_perf: use compiler atomic builtins for lcores sync Joyce Kong
2021-11-17  8:21   ` [PATCH v3 03/12] test/timer: use compiler atomic builtins for sync Joyce Kong
2021-11-17  8:21   ` [PATCH v3 04/12] test/stack_perf: use compiler atomics for lcore sync Joyce Kong
2021-11-17  8:21   ` [PATCH v3 05/12] test/bpf: use compiler atomics for calculation Joyce Kong
2021-11-17  8:21   ` [PATCH v3 06/12] test/func_reentrancy: use compiler atomics for data sync Joyce Kong
2021-11-17  8:21   ` [PATCH v3 07/12] app/eventdev: use compiler atomics for shared " Joyce Kong
2021-11-17  8:21   ` [PATCH v3 08/12] app/crypto: use compiler atomic builtins for display sync Joyce Kong
2021-11-17  8:21   ` [PATCH v3 09/12] app/compress: " Joyce Kong
2021-11-17  8:21   ` [PATCH v3 10/12] app/testpmd: remove atomic operations for port status Joyce Kong
2021-11-17  8:21   ` [PATCH v3 11/12] app/bbdev: use compiler atomics for shared data sync Joyce Kong
2021-11-17  8:22   ` [PATCH v3 12/12] app: remove unnecessary include of atomic header file Joyce Kong
2021-11-17 10:02   ` [PATCH v3 00/12] use compiler atomic builtins for app modules David Marchand

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