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Wed, 22 Apr 2020 03:14:14 +0000 Received: from VI1PR05MB4192.eurprd05.prod.outlook.com ([fe80::1c12:fd7c:4788:232a]) by VI1PR05MB4192.eurprd05.prod.outlook.com ([fe80::1c12:fd7c:4788:232a%7]) with mapi id 15.20.2921.030; Wed, 22 Apr 2020 03:14:14 +0000 From: Bing Zhao <bingz@mellanox.com> To: Thomas Monjalon <thomas@monjalon.net> CC: "john.mcnamara@intel.com" <john.mcnamara@intel.com>, "marko.kovacevic@intel.com" <marko.kovacevic@intel.com>, Slava Ovsiienko <viacheslavo@mellanox.com>, Ori Kam <orika@mellanox.com>, Matan Azrad <matan@mellanox.com>, Shahaf Shuler <shahafs@mellanox.com>, Raslan Darawsheh <rasland@mellanox.com>, "dev@dpdk.org" <dev@dpdk.org> Thread-Topic: [PATCH v3] doc: update hairpin data buffer size config Thread-Index: AQHWGEucr7pdAnrFA0mQzGG7UXnEc6iEdxCA Date: Wed, 22 Apr 2020 03:14:14 +0000 Message-ID: <VI1PR05MB41921DF09AF9A0E135CD9803DDD20@VI1PR05MB4192.eurprd05.prod.outlook.com> References: <1587447151-122283-1-git-send-email-bingz@mellanox.com> <1587454163-127981-1-git-send-email-bingz@mellanox.com> <2215228.yKrmzQ4Hd0@thomas> In-Reply-To: <2215228.yKrmzQ4Hd0@thomas> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=bingz@mellanox.com; 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DIR:OUT; SFP:1101; received-spf: None (protection.outlook.com: mellanox.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: aPIDg/Td4Tk4SsvAmLuESidfxszWUHF7CAVxobLKbQOS4TsuXOvp2XzwYjOutrzp+R6Qm2hzrWBz8HojaT82VAAWCzNvhSshgLWAVxUpH82VpjztiVSM0ESRf5+GoKRyZyVzQZAhzJvQAO4fJEinD07w8ClCcjmW/CPRMSIyLkFz2FCA9p6Gh86dSmTtTqKYNV05SzmsHWzI1Hlf7icd/ZMFsnAPIlEMHmPItlXx3ArbufpQilEFYhylg/++4lo364yY9R1FzQ+z9U2r8XGZKwIP8tsNlSFI/N6SYZ1v0jkFIlwncyvfzY+QWHmJqyTMYn2l7HaPFKa1Znf6LXYBwbnOk34jfNQBHgVH/6O9dw8q1EWdNNEYmSbRm2oL5eVrEfHK0W4Pxaq7XX/FS2k/5+LiUxrFOYM/xPwB7G3UmA4/PDJVR3Bio6Mf3ucT2d8C x-ms-exchange-antispam-messagedata: Otf3+xY4+T0lxi0LsKW5vibbMy8k2tb+BDx7wkDFotn5Cu5SNO2MxUFCdBqJuK5i71m1RJT2lyRvtTVAIf7IgKEgJSSDo7N3PRMBBF1C+5VGohKEWmBpQgPeZhgd+o2WpGLd4Dzl65ncf6r0S/b4AQ== Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: Mellanox.com X-MS-Exchange-CrossTenant-Network-Message-Id: 92359098-3675-4050-d6c7-08d7e66b3c98 X-MS-Exchange-CrossTenant-originalarrivaltime: 22 Apr 2020 03:14:14.7054 (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: fuFBa8RIIk8b/On4LcBTYw7AUlJ5hkHHZbTlrVLo12lDDXWjWlm/fzT9zJbVLcPgjEkDPAuok5YshMyVfHNeTA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR05MB6512 Subject: Re: [dpdk-dev] [PATCH v3] doc: update hairpin data buffer size config X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions <dev.dpdk.org> List-Unsubscribe: <https://mails.dpdk.org/options/dev>, <mailto:dev-request@dpdk.org?subject=unsubscribe> List-Archive: <http://mails.dpdk.org/archives/dev/> List-Post: <mailto:dev@dpdk.org> List-Help: <mailto:dev-request@dpdk.org?subject=help> List-Subscribe: <https://mails.dpdk.org/listinfo/dev>, <mailto:dev-request@dpdk.org?subject=subscribe> Errors-To: dev-bounces@dpdk.org Sender: "dev" <dev-bounces@dpdk.org> > -----Original Message----- > From: Thomas Monjalon <thomas@monjalon.net> > Sent: Wednesday, April 22, 2020 10:13 AM > To: Bing Zhao <bingz@mellanox.com> > Cc: john.mcnamara@intel.com; marko.kovacevic@intel.com; Slava > Ovsiienko <viacheslavo@mellanox.com>; Ori Kam > <orika@mellanox.com>; Matan Azrad <matan@mellanox.com>; > Shahaf Shuler <shahafs@mellanox.com>; Raslan Darawsheh > <rasland@mellanox.com>; dev@dpdk.org > Subject: Re: [PATCH v3] doc: update hairpin data buffer size config >=20 > 21/04/2020 09:29, Bing Zhao: > > This patch updates the MLX5 PMD and release notes > documentations. > > Adding the guideline for hairpin data buffer size configuration. > > > > Signed-off-by: Bing Zhao <bingz@mellanox.com> > > Acked-by: Ori Kam <orika@mellanox.com> > > --- > > --- a/doc/guides/nics/mlx5.rst > > +++ b/doc/guides/nics/mlx5.rst > > +- ``hp_buf_log_sz`` parameter [int] > > + > > + The total data buffer size of a hairpin queue (logarithmic form), in > bytes. > > + PMD will set the data buffer size to 2 ** ``hp_buf_log_sz``, both > for RX & TX. > > + The capacity of the value is sepcified by the Firmware, and the > > + initialization >=20 > sepcified -> specified > Firmware -> firmware >=20 > > + will get a failure if it is out of scope. > > + The range of the value is from 11 to 19 right now, and the > > + supported frame size of a single packet for hairpin is from 512B to > > + 128KB. It might change if different Firmware release is being used. > > + By using a small value, it could >=20 > Firmware -> firmware >=20 > > + reduce the memory consumption but not work with large frame. If > the > > + value is too large, the memory consumption will be high and some > > + potential performance degradation will be introduced. > > + By default PMD will set this value to 16, which mean that 9KB > jumbo > > + frames >=20 > By default, the PMD >=20 > > + will be supported. > > + >=20 > > --- a/doc/guides/rel_notes/release_20_05.rst > > +++ b/doc/guides/rel_notes/release_20_05.rst > > @@ -62,6 +62,7 @@ New Features > > > > * Added support for matching on IPv4 Time To Live and IPv6 Hop > Limit. > > * Added support for creating Relaxed Ordering Memory Regions. > > + * Added support for configuring Haripin queue data buffer size. >=20 > Haripin -> Hairpin >=20 >=20 Many thanks, Thomas. I corrected them and sent the v4.