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Thu, 6 Aug 2020 12:50:31 +0000 Received: from AM4PR05MB3265.eurprd05.prod.outlook.com ([fe80::194e:dc46:7543:50ed]) by AM4PR05MB3265.eurprd05.prod.outlook.com ([fe80::194e:dc46:7543:50ed%2]) with mapi id 15.20.3239.022; Thu, 6 Aug 2020 12:50:31 +0000 From: Slava Ovsiienko <viacheslavo@mellanox.com> To: Chengchang Tang <tangchengchang@huawei.com>, "dev@dpdk.org" <dev@dpdk.org> CC: "linuxarm@huawei.com" <linuxarm@huawei.com>, Thomas Monjalon <thomas@monjalon.net>, "ferruh.yigit@intel.com" <ferruh.yigit@intel.com>, "arybchenko@solarflare.com" <arybchenko@solarflare.com>, "stephen@networkplumber.org" <stephen@networkplumber.org> Thread-Topic: [dpdk-dev] [PATCH v2] doc: add new field to rxq info struct Thread-Index: AQHWa6Z+JUyjcQGILUiqwtnnQaxHnakrCA5g Date: Thu, 6 Aug 2020 12:50:29 +0000 Message-ID: <AM4PR05MB3265E393D61E9E02DDE0A747D2480@AM4PR05MB3265.eurprd05.prod.outlook.com> References: <1596619484-19714-1-git-send-email-tangchengchang@huawei.com> <1596686446-8138-1-git-send-email-tangchengchang@huawei.com> In-Reply-To: <1596686446-8138-1-git-send-email-tangchengchang@huawei.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: huawei.com; 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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: Mellanox.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: AM4PR05MB3265.eurprd05.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 11a6db41-518c-4e90-2046-08d83a074d60 X-MS-Exchange-CrossTenant-originalarrivaltime: 06 Aug 2020 12:50:30.7724 (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: 0zPxcaHQlM1wCc569Q8CjJgs6TByULflpItqqS7XkoSlNJK1onz2T6IsC3w0GKOWBZMKx/cpyxjWJD+jgaWuVafe1OoX+Y3QOHr84Ugfie8= X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM8PR05MB7252 Subject: Re: [dpdk-dev] [PATCH v2] doc: add new field to rxq info struct 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: dev <dev-bounces@dpdk.org> On Behalf Of Chengchang Tang > Sent: Thursday, August 6, 2020 7:01 > To: dev@dpdk.org > Cc: linuxarm@huawei.com; Thomas Monjalon <thomas@monjalon.net>; > ferruh.yigit@intel.com; arybchenko@solarflare.com; > stephen@networkplumber.org > Subject: [dpdk-dev] [PATCH v2] doc: add new field to rxq info struct >=20 > Struct rte_eth_rxq_info will be modified to include a new field, indicati= ng the > size of each buffer that could be used for hw to receive packets. Add thi= s > field to rte_eth_rxq_info to expose relevant information to upper layer > users/application. >=20 > For more details: > https://eur03.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fmails= . > dpdk.org%2Farchives%2Fdev%2F2020- > July%2F176135.html&data=3D02%7C01%7Cviacheslavo%40mellanox.com > %7Cdb0d8bcc221145a4a67508d839bd9f14%7Ca652971c7d2e4d9ba6a4d149 > 256f461b%7C0%7C0%7C637322833881598698&sdata=3DW2G3iEdepIjSlp > Wq4296k7cmXV1RhMnfl88TAjivWLc%3D&reserved=3D0 >=20 > Signed-off-by: Chengchang Tang <tangchengchang@huawei.com> > Acked-by: Andrew Rybchenko <arybchenko@solarflare.com> > --- > v2: > - Remove field name. > - Fix some spelling mistakes. > --- > doc/guides/rel_notes/deprecation.rst | 9 +++++++++ > 1 file changed, 9 insertions(+) >=20 > diff --git a/doc/guides/rel_notes/deprecation.rst > b/doc/guides/rel_notes/deprecation.rst > index ea4cfa7..f08b5f9 100644 > --- a/doc/guides/rel_notes/deprecation.rst > +++ b/doc/guides/rel_notes/deprecation.rst > @@ -110,6 +110,15 @@ Deprecation Notices > break the ABI checks, that is why change is planned for 20.11. > The list of internal APIs are mainly ones listed in ``rte_ethdev_drive= r.h``. >=20 > +* ethdev: A new field will be added to the public data structure > + ``rte_eth_rxq_info`` to indicate the buffer size used in receiving > +packets > + for HW. When receive packets, HW DMA won't exceed this size. And it > +will > + affect the number of fragments in receiving packets when scatter is > enabled. > + So, add this field to ``rte_eth_rxq_info`` to expose relevant > +information to > + upper layer user/application. > + This change is planned for 20.11. For more details: > + > +https://eur03.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fmail > s > +.dpdk.org%2Farchives%2Fdev%2F2020- > July%2F176135.html&data=3D02%7C01%7 > +Cviacheslavo%40mellanox.com%7Cdb0d8bcc221145a4a67508d839bd9f14 > %7Ca65297 > +1c7d2e4d9ba6a4d149256f461b%7C0%7C0%7C637322833881598698& > ;sdata=3DW2G3i > +EdepIjSlpWq4296k7cmXV1RhMnfl88TAjivWLc%3D&reserved=3D0 > + > * traffic manager: All traffic manager API's in ``rte_tm.h`` were mistak= enly > made > ABI stable in the v19.11 release. The TM maintainer and other contribu= tors > have > agreed to keep the TM APIs as experimental in expectation of additiona= l > spec > -- > 2.7.4 We are going to introduce the more flexible format to descript the rx buffe= rs with multiple segment lengths/pools. It might be worth to consider extendin= g this info structure single field to array. I suppose it is the subject for furth= er discussion (on RFC). Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>