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Tue, 16 Jul 2019 19:25:35 +0000 Received: from VI1PR08MB3167.eurprd08.prod.outlook.com ([fe80::5c6f:a70a:a1d7:5d65]) by VI1PR08MB3167.eurprd08.prod.outlook.com ([fe80::5c6f:a70a:a1d7:5d65%5]) with mapi id 15.20.2073.012; Tue, 16 Jul 2019 19:25:35 +0000 From: "Gavin Hu (Arm Technology China)" To: "thomas@monjalon.net" CC: Olivier Matz , "dev@dpdk.org" , nd , "jerinj@marvell.com" , "hemant.agrawal@nxp.com" , "Nipun.gupta@nxp.com" , Honnappa Nagarahalli , "i.maximets@samsung.com" , "stable@dpdk.org" Thread-Topic: [PATCH v9 1/2] ring: add reset API to flush the ring when not in use Thread-Index: AQHVOMooKl6tIysb80Oj9J9zlTBwkKbM+H6AgAAqEwCAACenoIAAFGeAgABIFBA= Date: Tue, 16 Jul 2019 19:25:35 +0000 Message-ID: References: <20181212062404.30243-1-gavin.hu@arm.com> <20190716113156.nhnirohjmzdbb4wl@platinum> <5216267.UWJeh5MzEM@xps> In-Reply-To: <5216267.UWJeh5MzEM@xps> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ts-tracking-id: 08f19e26-e385-4797-975c-2db02dc2a558.0 x-checkrecipientchecked: true authentication-results: spf=none (sender IP is ) smtp.mailfrom=Gavin.Hu@arm.com; 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DIR:OUT; SFP:1101; SCL:1; SRVR:VI1PR08MB2765; H:VI1PR08MB3167.eurprd08.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; MX:1; A:1; received-spf: None (protection.outlook.com: arm.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: 9aeSJangqtGbixepKv3Amqpc56YQcHFLtmy1BCSPgCw+XU+BB+h7dPUqxMqQDyxjl0KpWMuWCNusCVPGrYGZMLMNJ+YH72RdGbQFBBo1+vmiYWGNfJSWOTAIwZkZowZ8BRftPsC4aEO7gH6UC+wGByUx/jDmsr6yjQ9fr7PUb/YjdrVvwG6IT/975DMwmTeH2RpkUG5D2oiKn0FOZd1e4w9O1Mf47DF7m1HtLj+PP9ey5wFShJTctsd3untNy2K9MMeWGuwKKS8QGBPBs177AAPAFF8uD2forO/A+7BnsU+Eu2/czTBJqRXIGkUcNEWdxo/rRF7KtmWgxPHo9kIsI/0Fz46QEXZu771pQAtLDJ+wjN3J3ycS/6hxHlkj/0w+YHwmvzZRAdQo7Nmfqc3HuRNFD9AWibreqAdg/zH6i9I= Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-Network-Message-Id: 5c45426f-e3cf-4a8f-986f-08d70a2360a5 X-MS-Exchange-CrossTenant-originalarrivaltime: 16 Jul 2019 19:25:35.5694 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: Gavin.Hu@arm.com X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR08MB2765 Subject: Re: [dpdk-stable] [PATCH v9 1/2] ring: add reset API to flush the ring when not in use 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" Hi Thomas, > -----Original Message----- > From: Thomas Monjalon > Sent: Tuesday, July 16, 2019 10:07 AM > To: Gavin Hu (Arm Technology China) > Cc: Olivier Matz ; dev@dpdk.org; nd > ; jerinj@marvell.com; hemant.agrawal@nxp.com; > Nipun.gupta@nxp.com; Honnappa Nagarahalli > ; i.maximets@samsung.com; > stable@dpdk.org > Subject: Re: [PATCH v9 1/2] ring: add reset API to flush the ring when no= t in > use >=20 > 16/07/2019 16:03, Gavin Hu (Arm Technology China): > > From: Olivier Matz > > > On Tue, Jul 16, 2019 at 11:01:21AM +0200, Olivier Matz wrote: > > > > On Fri, Jul 12, 2019 at 11:54:36PM +0800, Gavin Hu wrote: > > > > > Currently, the flush is done by dequeuing the ring in a while loo= p. It is > > > > > much simpler to flush the queue by resetting the head and tail > indices. > > > > > > > > > > Fixes: af75078fece3 ("first public release") > > > > > Cc: stable@dpdk.org > > > > > > Actually it's not a fix, it adds a new API. > > > > > > Is the patch in hash library intended to be backported? If yes, as it > > > seems to be a performance optimization, you'll need to describe what > > > scenario you're fixing and what is the performance gain. If no, the C= c > > > stable can be removed. > > > > As this is not in the data plan, I don't intend to backport. > > Do I need to submit a new version to remove the CC: lines? >=20 > Yes please. > You can also remove the "fixes" line in the first patch. Sure, just sent out V10, thanks!