From: "Carrillo, Erik G" <erik.g.carrillo@intel.com>
To: Phil Yang <phil.yang@arm.com>, "dev@dpdk.org" <dev@dpdk.org>
Cc: "jerinj@marvell.com" <jerinj@marvell.com>,
"Honnappa.Nagarahalli@arm.com" <Honnappa.Nagarahalli@arm.com>,
"drc@linux.vnet.ibm.com" <drc@linux.vnet.ibm.com>,
"Ruifeng.Wang@arm.com" <Ruifeng.Wang@arm.com>,
"Dharmik.Thakkar@arm.com" <Dharmik.Thakkar@arm.com>,
"nd@arm.com" <nd@arm.com>
Subject: Re: [dpdk-dev] [PATCH v2 4/4] eventdev: relax smp barriers with c11 atomics
Date: Thu, 2 Jul 2020 20:30:28 +0000 [thread overview]
Message-ID: <MWHPR1101MB21270BA4B7A707C909A29A9BB96D0@MWHPR1101MB2127.namprd11.prod.outlook.com> (raw)
In-Reply-To: <1593667604-12029-4-git-send-email-phil.yang@arm.com>
> -----Original Message-----
> From: Phil Yang <phil.yang@arm.com>
> Sent: Thursday, July 2, 2020 12:27 AM
> To: Carrillo, Erik G <erik.g.carrillo@intel.com>; dev@dpdk.org
> Cc: jerinj@marvell.com; Honnappa.Nagarahalli@arm.com;
> drc@linux.vnet.ibm.com; Ruifeng.Wang@arm.com;
> Dharmik.Thakkar@arm.com; nd@arm.com
> Subject: [PATCH v2 4/4] eventdev: relax smp barriers with c11 atomics
>
> The implementation-specific opaque data is shared between arm and cancel
> operations. The state flag acts as a guard variable to make sure the update of
> opaque data is synchronized. This patch uses c11 atomics with explicit one
> way memory barrier instead of full barriers rte_smp_w/rmb() to synchronize
> the opaque data between timer arm and cancel threads.
>
> Signed-off-by: Phil Yang <phil.yang@arm.com>
> Reviewed-by: Dharmik Thakkar <dharmik.thakkar@arm.com>
> Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Acked-by: Erik Gabriel Carrillo <erik.g.carrillo@intel.com>
next prev parent reply other threads:[~2020-07-02 20:30 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-12 11:19 [dpdk-dev] [PATCH 1/3] eventdev: fix race condition on timer list counter Phil Yang
2020-06-12 11:19 ` [dpdk-dev] [PATCH 2/3] eventdev: use c11 atomics for lcore timer armed flag Phil Yang
2020-06-23 21:01 ` Carrillo, Erik G
2020-06-28 16:12 ` Phil Yang
2020-06-23 21:20 ` Stephen Hemminger
2020-06-23 21:31 ` Carrillo, Erik G
2020-06-28 16:32 ` Phil Yang
2020-06-12 11:19 ` [dpdk-dev] [PATCH 3/3] eventdev: relax smp barriers with c11 atomics Phil Yang
2020-06-22 10:12 ` Phil Yang
2020-06-23 19:38 ` Carrillo, Erik G
2020-06-28 17:33 ` Phil Yang
2020-06-29 18:07 ` Carrillo, Erik G
2020-06-18 15:17 ` [dpdk-dev] [PATCH 1/3] eventdev: fix race condition on timer list counter Carrillo, Erik G
2020-06-18 18:25 ` Honnappa Nagarahalli
2020-06-22 9:48 ` Phil Yang
2020-07-01 11:22 ` Jerin Jacob
2020-07-02 3:28 ` Phil Yang
2020-07-02 3:26 ` Phil Yang
2020-07-02 3:56 ` Honnappa Nagarahalli
2020-07-02 21:15 ` Carrillo, Erik G
2020-07-02 21:30 ` Honnappa Nagarahalli
2020-06-22 9:09 ` Phil Yang
2020-07-02 5:26 ` [dpdk-dev] [PATCH v2 1/4] " Phil Yang
2020-07-02 5:26 ` [dpdk-dev] [PATCH v2 2/4] eventdev: use c11 atomics for lcore timer armed flag Phil Yang
2020-07-02 20:21 ` Carrillo, Erik G
2020-07-02 5:26 ` [dpdk-dev] [PATCH v2 3/4] eventdev: remove redundant code Phil Yang
2020-07-03 3:35 ` Dharmik Thakkar
2020-07-02 5:26 ` [dpdk-dev] [PATCH v2 4/4] eventdev: relax smp barriers with c11 atomics Phil Yang
2020-07-02 20:30 ` Carrillo, Erik G [this message]
2020-07-03 10:50 ` Jerin Jacob
2020-07-06 10:04 ` Thomas Monjalon
2020-07-06 15:32 ` Phil Yang
2020-07-06 15:40 ` Thomas Monjalon
2020-07-07 11:13 ` [dpdk-dev] [PATCH v3 1/4] eventdev: fix race condition on timer list counter Phil Yang
2020-07-07 11:13 ` [dpdk-dev] [PATCH v3 2/4] eventdev: use C11 atomics for lcore timer armed flag Phil Yang
2020-07-07 11:13 ` [dpdk-dev] [PATCH v3 3/4] eventdev: remove redundant code Phil Yang
2020-07-07 11:13 ` [dpdk-dev] [PATCH v3 4/4] eventdev: relax smp barriers with C11 atomics Phil Yang
2020-07-07 14:29 ` Jerin Jacob
2020-07-07 15:56 ` Phil Yang
2020-07-07 15:54 ` [dpdk-dev] [PATCH v4 1/4] eventdev: fix race condition on timer list counter Phil Yang
2020-07-07 15:54 ` [dpdk-dev] [PATCH v4 2/4] eventdev: use C11 atomics for lcore timer armed flag Phil Yang
2020-07-07 15:54 ` [dpdk-dev] [PATCH v4 3/4] eventdev: remove redundant code Phil Yang
2020-07-07 15:54 ` [dpdk-dev] [PATCH v4 4/4] eventdev: relax smp barriers with C11 atomics Phil Yang
2020-07-08 13:30 ` [dpdk-dev] [PATCH v4 1/4] eventdev: fix race condition on timer list counter Jerin Jacob
2020-07-08 15:01 ` Thomas Monjalon
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