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Thu, 9 Jan 2020 14:22:10 +0000 Received: from AM0PR05MB6707.eurprd05.prod.outlook.com ([fe80::95ff:bfb2:7f11:87b2]) by AM0PR05MB6707.eurprd05.prod.outlook.com ([fe80::95ff:bfb2:7f11:87b2%5]) with mapi id 15.20.2623.010; Thu, 9 Jan 2020 14:22:10 +0000 From: Raslan Darawsheh <rasland@mellanox.com> To: Slava Ovsiienko <viacheslavo@mellanox.com>, "dev@dpdk.org" <dev@dpdk.org> CC: Matan Azrad <matan@mellanox.com>, Ori Kam <orika@mellanox.com> Thread-Topic: [PATCH v2 0/4] net/mlx5: remove Tx descriptor reserved field usage Thread-Index: AQHVxtt2k36oFxsbekmON9WYeLk2WqfiYluA Date: Thu, 9 Jan 2020 14:22:10 +0000 Message-ID: <AM0PR05MB6707164756A327A640B72FEEC2390@AM0PR05MB6707.eurprd05.prod.outlook.com> References: <1578500161-20156-1-git-send-email-viacheslavo@mellanox.com> <1578567380-26994-1-git-send-email-viacheslavo@mellanox.com> In-Reply-To: <1578567380-26994-1-git-send-email-viacheslavo@mellanox.com> 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=rasland@mellanox.com; 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LANG:en; PTR:InfoNoRecords; A:1; MX:1; 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: 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 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: 3e3adfdc-d06c-463e-0291-08d7950f5074 X-MS-Exchange-CrossTenant-originalarrivaltime: 09 Jan 2020 14:22:10.1847 (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: 4JF0p/8siIOS5vJ6D9RDiAbl3jX4nFDlXxb+b04pcCPyT3QtXSa8EvWArS+juvWir24/mbDT7qG0YecxrxWYXA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR05MB4771 Subject: Re: [dpdk-dev] [PATCH v2 0/4] net/mlx5: remove Tx descriptor reserved field usage 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> Hi, Series applied on next-net-mlx, Kindest regards, Raslan Darawsheh > -----Original Message----- > From: Viacheslav Ovsiienko <viacheslavo@mellanox.com> > Sent: Thursday, January 9, 2020 12:56 PM > To: dev@dpdk.org > Cc: Matan Azrad <matan@mellanox.com>; Raslan Darawsheh > <rasland@mellanox.com>; Ori Kam <orika@mellanox.com> > Subject: [PATCH v2 0/4] net/mlx5: remove Tx descriptor reserved field usa= ge >=20 > The current Tx datapath implementation in mlx5 PMD uses the 16-bit > reserved field within transmit descriptor to store the indices of the elt= s array > keeping the mbuf pointers to be freed on transmit completion. On > completion PMD fetches the descriptor index, then fetches the elts array > index from reserved field and frees the mbufs. >=20 > The new ConnectX-6DX NIC might use this reserved descriptor field and > existing implementation might not work in intended way. > To resolve this issue the dedicated buffer is introduced to store indices= to > instead of descriptor field. >=20 > Signed-off-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com> >=20 > Viacheslav Ovsiienko (4): > net/mlx5: move Tx complete request routine > net/mlx5: update Tx error handling routine > net/mlx5: add free on completion queue > net/mlx5: engage free on completion queue >=20 > drivers/net/mlx5/mlx5_rxtx.c | 153 ++++++++++++++++++++----------------- > ------ > drivers/net/mlx5/mlx5_rxtx.h | 13 ++-- drivers/net/mlx5/mlx5_txq.c | = 19 > +++++- > 3 files changed, 94 insertions(+), 91 deletions(-) >=20 > -- > v1: > https://eur03.safelinks.protection.outlook.com/?url=3Dhttp%3A%2F%2Fpatch > es.dpdk.org%2Fcover%2F64293%2F&data=3D02%7C01%7Crasland%40mell > anox.com%7C56986b5d3d3c46f2725b08d794f297e6%7Ca652971c7d2e4d9ba6 > a4d149256f461b%7C0%7C0%7C637141641963098885&sdata=3DRP4VgjCQlp > oJc5J38aajK9Rr8twtJ4d%2FSVP2JxM5C98%3D&reserved=3D0 > v2: resolve minor compilation per patch issues >=20 > 1.8.3.1