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Tue, 10 Sep 2019 07:22:51 +0000 Received: from AM0PR0502MB4019.eurprd05.prod.outlook.com ([fe80::7deb:8e17:1363:e00e]) by AM0PR0502MB4019.eurprd05.prod.outlook.com ([fe80::7deb:8e17:1363:e00e%7]) with mapi id 15.20.2241.018; Tue, 10 Sep 2019 07:22:51 +0000 From: Matan Azrad To: Phil Yang , Yongseok Koh , Slava Ovsiienko , =?iso-8859-1?Q?N=E9lio_Laranjeiro?= , "dev@dpdk.org" CC: Thomas Monjalon , "jerinj@marvell.com" , "Honnappa.Nagarahalli@arm.com" , "gavin.hu@arm.com" , "nd@arm.com" , "stable@dpdk.org" Thread-Topic: [PATCH 1/2] net/mlx5: fix Rx CQ doorbell synchronization on aarch64 Thread-Index: AQHVY9h1rzq4s2V6IkO7zuvh/aQWtackiTLQ Date: Tue, 10 Sep 2019 07:22:51 +0000 Message-ID: References: <1567680908-31210-1-git-send-email-phil.yang@arm.com> In-Reply-To: <1567680908-31210-1-git-send-email-phil.yang@arm.com> Accept-Language: en-US, he-IL Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=matan@mellanox.com; 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DIR:OUT; SFP:1101; SCL:1; SRVR:AM0PR0502MB4004; H:AM0PR0502MB4019.eurprd05.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; MX:1; A:1; received-spf: None (protection.outlook.com: mellanox.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: kXNLU/nRMGuAHP7ekJouaIqFHqtNx2AX/HOOQSxXnIv2mzx7RfBf9C2LZDKECS3eej/lrK9Y6Nq76/Uf5SGHZ2wUuwKD3gvBCwFsw4fZ2/BW0tb5WiZgYwtXFgjxiyPWBJcClDzCwsnqHV2TScevoPxkygLVViR213q/RpUvbRf9bYx6DqUG9lxeStC+c6a3sZdnpc5pR61Ybtrg8hGrJuERJJMuwQOrbmgKs9P+ADb7a+pqF0lMfzMCvnsU4CsA/o92xG6a4I5PXJZhvln24SXbfgBOFGtXZqKCtSGHPi0A4D3jakxg0E6T39XOWXDOky7b5lrUQKjZMHaqzAhygg2fjNIRvM/LSMBiwi5y95neL8iLARHid+Rc2SNYVQ9J+QeU9b+lkzFoI5CzGsY0Pm2ZUL5w9aYeTwncXG/H6SY= Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: Mellanox.com X-MS-Exchange-CrossTenant-Network-Message-Id: f2009b5e-b0d1-4c93-6cc9-08d735bfb0c3 X-MS-Exchange-CrossTenant-originalarrivaltime: 10 Sep 2019 07:22:51.5318 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: a652971c-7d2e-4d9b-a6a4-d149256f461b X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: FC0BMi6ZV7kYbTsbSb/yMA/ctw06Gl53QYVhZC35uSrbhp9UoGn/pcrh3w1+QGYoCGZtoxSU7HsftuOQpgO75g== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR0502MB4004 Subject: Re: [dpdk-stable] [PATCH 1/2] net/mlx5: fix Rx CQ doorbell synchronization on aarch64 X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org Sender: "stable" From: Phil Yang=20 > Subject: [PATCH 1/2] net/mlx5: fix Rx CQ doorbell synchronization on aarc= h64 >=20 > The Rx completion queue doorbell field needs to be updated after the last > CQE decompressed. For the weaker memory model processors, the compiler > barrier is not sufficient to guarantee the order of these operations, so = use > the coherent I/O memory barrier to make sure these fields are updated in > order. >=20 > Fixes: 570acdb1da8a ("net/mlx5: add vectorized Rx/Tx burst for ARM") > Cc: stable@dpdk.org >=20 > Suggested-by: Gavin Hu > Signed-off-by: Phil Yang > Reviewed-by: Gavin Hu Acked-by: Matan Azrad