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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: PAXPR04MB8427.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 3d2b3512-5438-4095-4d59-08d91af60e6c X-MS-Exchange-CrossTenant-originalarrivaltime: 19 May 2021 18:43:55.4587 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: vqzfTW3kuzwNjf8DMm4vjG6qJdGDIC4kKEw3/a5FnOA5A0soM9O2SFvIck+rkBnesir1qV8eCa+Y/QoCZUQDuQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PAXPR04MB8318 Subject: Re: [dpdk-dev] [PATCH v4 5/8] baseband/la12xx: add queue and modem config support X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" > -----Original Message----- > From: Chautru, Nicolas > Sent: Monday, May 17, 2021 11:23 PM > To: Nipun Gupta ; Hemant Agrawal > ; dev@dpdk.org; gakhil@marvell.com > Cc: david.marchand@redhat.com > Subject: RE: [PATCH v4 5/8] baseband/la12xx: add queue and modem config > support >=20 >=20 >=20 > > -----Original Message----- > > From: Nipun Gupta > > Sent: Monday, May 17, 2021 10:00 AM > > > > Hi, > > > > > -----Original Message----- > > > From: Chautru, Nicolas > > > Sent: Thursday, May 13, 2021 8:21 PM > > > To: Nipun Gupta ; Hemant Agrawal > > > ; dev@dpdk.org; gakhil@marvell.com > > > Cc: david.marchand@redhat.com > > > Subject: RE: [PATCH v4 5/8] baseband/la12xx: add queue and modem > > > config support > > > > > > Hi Nipun, > > > > > > > -----Original Message----- > > > > From: Nipun Gupta > > > > Sent: Thursday, May 13, 2021 4:02 AM > > > > To: Chautru, Nicolas ; Hemant Agrawal > > > > ; dev@dpdk.org; gakhil@marvell.com > > > > Cc: david.marchand@redhat.com > > > > Subject: RE: [PATCH v4 5/8] baseband/la12xx: add queue and modem > > > > config support > > > > > > > > > > > > > > > > > > + .type =3D RTE_BBDEV_OP_LDPC_DEC, > > > > > > + .cap.ldpc_dec =3D { > > > > > > + .capability_flags =3D > > > > > > + > > RTE_BBDEV_LDPC_CRC_TYPE_24A_CHECK | > > > > > > + > > RTE_BBDEV_LDPC_LLR_COMPRESSION | > > > > > > > > > > Are you sure you support the 6bits LLR compression option? I don'= t > > > > > see it being used in the PMD below. Nor in doc. > > > > > Let me know if you are unclear what that flag really mean. > > > > > > > > We support LLR compression in the Hardware by default. > > > > We do not need to call ' ldpc_input_llr_scaling' API in testbbdev. > > > > > > > > > > So you always assume to pack up the input data as 6 bits back-to-back= ? > > > You understand what that feature mean? > > > My concern is that you would not support current API and many unit > > > test would fail then for you PMD. > > > Are you able to run the bbdev-test and see failures (all tests should > > > be either skipped : missing capability) or passing > > > > Our test vectors pass with our driver (Performance, validation, Latency= and > > offload cost tests), provided we do not call 'ldpc_input_llr_scaling' A= PI. > > I am not sure why this API is being called in testbbdev. Can you provid= e more > > insight on why this API is doing and why does it modifies the input dat= a? >=20 > What LLR numerical representation are you doing for your PMD/HW. > Ie how many integer bits, how many decimals bits. > This is to be able to support seamless different decoder implementation w= hich > have different assumptions or implementation. It is 8 integer bits and 1 decimal bit for our hardware. Will fix our code. Thanks, Nipun >=20 > > > > > > > > > > > > Regards, > > > > Nipun