From: Dharmik Thakkar <dharmik.thakkar@arm.com>
To: Byron Marohn <byron.marohn@intel.com>,
Yipeng Wang <yipeng1.wang@intel.com>
Cc: dev@dpdk.org, nd@arm.com, honnappa.nagarahalli@arm.com,
ruifeng.wang@arm.com, joyce.kong@arm.com,
dharmik.thakkar@arm.com
Subject: [dpdk-dev] [PATCH v3 7/8] examples/server_node_efd: use compiler atomics for sync
Date: Wed, 13 Oct 2021 13:54:06 -0500 [thread overview]
Message-ID: <20211013185407.2841183-8-dharmik.thakkar@arm.com> (raw)
In-Reply-To: <20211013185407.2841183-1-dharmik.thakkar@arm.com>
From: Joyce Kong <joyce.kong@arm.com>
Convert rte_atomic32_test_and_set to compiler CAS atomic
operation for display_stats sync.
Signed-off-by: Joyce Kong <joyce.kong@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
---
examples/server_node_efd/server/main.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/examples/server_node_efd/server/main.c b/examples/server_node_efd/server/main.c
index 0d0d5679e4c4..fd72882e3a1c 100644
--- a/examples/server_node_efd/server/main.c
+++ b/examples/server_node_efd/server/main.c
@@ -22,7 +22,6 @@
#include <rte_per_lcore.h>
#include <rte_lcore.h>
#include <rte_branch_prediction.h>
-#include <rte_atomic.h>
#include <rte_ring.h>
#include <rte_log.h>
#include <rte_debug.h>
@@ -178,10 +177,12 @@ static int
sleep_lcore(__rte_unused void *dummy)
{
/* Used to pick a display thread - static, so zero-initialised */
- static rte_atomic32_t display_stats;
+ static uint32_t display_stats;
/* Only one core should display stats */
- if (rte_atomic32_test_and_set(&display_stats)) {
+ uint32_t display_init = 0;
+ if (__atomic_compare_exchange_n(&display_stats, &display_init, 1, 0,
+ __ATOMIC_RELAXED, __ATOMIC_RELAXED)) {
const unsigned int sleeptime = 1;
printf("Core %u displaying statistics\n", rte_lcore_id());
--
2.25.1
next prev parent reply other threads:[~2021-10-13 18:55 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-23 5:49 [dpdk-dev] [PATCH v2 0/8] use compiler atomic builtins for examples Joyce Kong
2021-08-23 5:49 ` [dpdk-dev] [PATCH v2 1/8] examples/bbdev_app: use compiler atomics for flag sync Joyce Kong
2021-08-23 5:49 ` [dpdk-dev] [PATCH v2 2/8] examples/multi_process: use compiler atomics for sync Joyce Kong
2021-08-23 5:49 ` [dpdk-dev] [PATCH v2 3/8] examples/kni: use compiler atomics for status sync Joyce Kong
2021-08-23 5:49 ` [dpdk-dev] [PATCH v2 4/8] examples/performance-thread: use compiler atomics for sync Joyce Kong
2021-08-23 5:49 ` [dpdk-dev] [PATCH v2 5/8] examples/l2fwd-jobstats: use compiler atomics for stats sync Joyce Kong
2021-08-23 5:49 ` [dpdk-dev] [PATCH v2 6/8] examples/vm_power_manager: use compiler atomics for sync Joyce Kong
2021-08-23 5:49 ` [dpdk-dev] [PATCH v2 7/8] examples/server_node_efd: " Joyce Kong
2021-08-23 5:49 ` [dpdk-dev] [PATCH v2 8/8] examples: remove unnecessary include of atomic Joyce Kong
2021-08-23 11:29 ` Xia, Chenbo
2021-08-24 2:30 ` Joyce Kong
2021-10-13 18:53 ` [dpdk-dev] [PATCH v3 0/8] use compiler atomic builtins for examples Dharmik Thakkar
2021-10-13 18:54 ` [dpdk-dev] [PATCH v3 1/8] examples/bbdev_app: use compiler atomics for flag sync Dharmik Thakkar
2021-10-13 18:54 ` [dpdk-dev] [PATCH v3 2/8] examples/multi_process: use compiler atomics for sync Dharmik Thakkar
2021-10-13 18:54 ` [dpdk-dev] [PATCH v3 3/8] examples/kni: use compiler atomics for status sync Dharmik Thakkar
2021-10-13 18:54 ` [dpdk-dev] [PATCH v3 4/8] examples/performance-thread: use compiler atomics for sync Dharmik Thakkar
2021-10-13 18:54 ` [dpdk-dev] [PATCH v3 5/8] examples/l2fwd-jobstats: use compiler atomics for stats sync Dharmik Thakkar
2021-10-13 18:54 ` [dpdk-dev] [PATCH v3 6/8] examples/vm_power_manager: use compiler atomics for sync Dharmik Thakkar
2021-10-13 18:54 ` Dharmik Thakkar [this message]
2021-10-13 18:54 ` [dpdk-dev] [PATCH v3 8/8] examples: remove unnecessary include of atomic Dharmik Thakkar
2021-10-15 23:30 ` Dharmik Thakkar
2021-10-19 15:12 ` David Marchand
2021-10-19 15:12 ` [dpdk-dev] [PATCH v3 0/8] use compiler atomic builtins for examples David Marchand
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20211013185407.2841183-8-dharmik.thakkar@arm.com \
--to=dharmik.thakkar@arm.com \
--cc=byron.marohn@intel.com \
--cc=dev@dpdk.org \
--cc=honnappa.nagarahalli@arm.com \
--cc=joyce.kong@arm.com \
--cc=nd@arm.com \
--cc=ruifeng.wang@arm.com \
--cc=yipeng1.wang@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).