From: Feifei Wang <Feifei.Wang2@arm.com>
To: Stephen Hemminger <stephen@networkplumber.org>
Cc: David Hunt <david.hunt@intel.com>, "dev@dpdk.org" <dev@dpdk.org>,
nd <nd@arm.com>, Ruifeng Wang <Ruifeng.Wang@arm.com>,
nd <nd@arm.com>
Subject: 回复: [PATCH v1 3/3] examples/l3fwd-power: enable PMD power mgmt on Arm
Date: Thu, 27 Oct 2022 09:43:47 +0000 [thread overview]
Message-ID: <AS8PR08MB7718E853E808B6C9C3EEF380C8339@AS8PR08MB7718.eurprd08.prod.outlook.com> (raw)
In-Reply-To: <20221020150937.1f5b262c@hermes.local>
> -----邮件原件-----
> 发件人: Stephen Hemminger <stephen@networkplumber.org>
> 发送时间: Friday, October 21, 2022 6:10 AM
> 收件人: Feifei Wang <Feifei.Wang2@arm.com>
> 抄送: David Hunt <david.hunt@intel.com>; dev@dpdk.org; nd
> <nd@arm.com>; Ruifeng Wang <Ruifeng.Wang@arm.com>
> 主题: Re: [PATCH v1 3/3] examples/l3fwd-power: enable PMD power mgmt
> on Arm
>
> On Thu, 25 Aug 2022 14:42:51 +0800
> Feifei Wang <feifei.wang2@arm.com> wrote:
>
> > diff --git a/examples/l3fwd-power/main.c b/examples/l3fwd-
> power/main.c
> > index 887c6eae3f..2bd0d700f0 100644
> > --- a/examples/l3fwd-power/main.c
> > +++ b/examples/l3fwd-power/main.c
> > @@ -432,8 +432,16 @@ static void
> > signal_exit_now(int sigtype)
> > {
> >
> > - if (sigtype == SIGINT)
> > + if (sigtype == SIGINT) {
> > +#if defined(RTE_ARCH_ARM64)
> > + /**
> > + * wake_up api does not need input parameter on Arm,
> > + * so 0 is meaningless here.
> > + */
> > + rte_power_monitor_wakeup(0);
> > +#endif
> > quit_signal = true;
> > + }
> >
>
> This method is problematic. There is no guarantee that power monitor is
> async signal safe.
Agree with this. We will put 'rte_power_monitor_wakeup' out of signal_exit.
And put it after that main_lcore exit 'main_empty_poll_loop':
-----------------------------------------------------------------------------------------------------------------
rte_eal_mp_remote_launch(main_telemetry_loop, NULL, CALL_MAIN);
%wake up all worker calls from low power state.
rte_power_monitor_wakeup(0);
if (app_mode == APP_MODE_EMPTY_POLL || app_mode == APP_MODE_TELEMETRY)
launch_timer(rte_lcore_id());
RTE_LCORE_FOREACH_WORKER(lcore_id) {
if (rte_eal_wait_lcore(lcore_id) < 0)
return -1;
}
-----------------------------------------------------------------------------------------------------------------
next prev parent reply other threads:[~2022-10-27 9:44 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-25 6:42 [PATCH v1 0/3] Enable PMD power management " Feifei Wang
2022-08-25 6:42 ` [PATCH v1 1/3] eal: add 8 bits case for wait scheme Feifei Wang
2022-08-25 6:42 ` [PATCH v1 2/3] eal: add power mgmt support on Arm Feifei Wang
2022-08-25 6:42 ` [PATCH v1 3/3] examples/l3fwd-power: enable PMD power mgmt " Feifei Wang
2022-08-29 12:48 ` Hunt, David
2022-10-03 7:12 ` David Marchand
2022-10-11 7:56 ` 回复: " Feifei Wang
2022-10-20 20:41 ` Thomas Monjalon
2022-10-27 9:38 ` 回复: " Feifei Wang
2022-10-20 22:09 ` Stephen Hemminger
2022-10-27 9:43 ` Feifei Wang [this message]
2022-11-07 7:04 ` [PATCH v2 0/3] Enable PMD power management " Feifei Wang
2022-11-07 7:04 ` [PATCH v2 1/3] eal: add 8 bits case for wait scheme Feifei Wang
2022-11-07 7:04 ` [PATCH v2 2/3] eal: add power mgmt support on Arm Feifei Wang
2022-11-07 7:04 ` [PATCH v2 3/3] examples/l3fwd-power: enable PMD power monitor " Feifei Wang
2022-11-07 16:01 ` Stephen Hemminger
2022-11-08 3:25 ` 回复: " Feifei Wang
2022-11-11 7:26 ` [PATCH v3 0/3] Enable PMD power management " Feifei Wang
2022-11-11 7:26 ` [PATCH v3 1/3] eal: add 8 bits case for wait scheme Feifei Wang
2022-11-11 7:26 ` [PATCH v3 2/3] eal: add power mgmt support on Arm Feifei Wang
2022-11-11 7:26 ` [PATCH v3 3/3] examples/l3fwd-power: enable PMD power monitor " Feifei Wang
2022-11-11 8:22 ` Thomas Monjalon
2022-11-11 10:21 ` 回复: " Feifei Wang
2022-11-11 10:20 ` [PATCH v4 0/4] Enable PMD power management " Feifei Wang
2022-11-11 10:20 ` [PATCH v4 1/4] eal: add 8 bits case for wait scheme Feifei Wang
2022-11-11 10:20 ` [PATCH v4 2/4] eal: add power mgmt support on Arm Feifei Wang
2022-11-11 10:20 ` [PATCH v4 3/4] power: add power monitor support check Feifei Wang
2022-11-11 10:20 ` [PATCH v4 4/4] examples/l3fwd-power: add power monitor wake up API Feifei Wang
2022-12-14 8:14 ` [PATCH v5 0/2] Enable PMD power management on Arm Feifei Wang
2022-12-14 8:14 ` [PATCH v5 1/2] eal: add 8 bits case for wait scheme Feifei Wang
2022-12-14 8:14 ` [PATCH v5 2/2] eal: add power mgmt support on Arm Feifei Wang
2023-02-17 16:23 ` Stephen Hemminger
2023-02-20 1:56 ` 回复: " Feifei Wang
2023-02-17 8:26 ` 回复: [PATCH v5 0/2] Enable PMD power management " Feifei Wang
2023-02-20 8:51 ` [PATCH v6 " Feifei Wang
2023-02-20 8:51 ` [PATCH v6 1/2] eal: add 8 bits case for wait scheme Feifei Wang
2023-02-20 8:51 ` [PATCH v6 2/2] eal: add power mgmt support on Arm Feifei Wang
2023-02-20 12:07 ` [PATCH v6 0/2] Enable PMD power management " David Marchand
2023-02-21 2:37 ` 回复: " Feifei Wang
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