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Thu, 29 Aug 2024 04:00:33 -0400 X-MC-Unique: unF_Nv8BN7aRoxZ0woKaMA-1 Received: from mx-prod-int-02.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-02.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.15]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 9CC1F1955BEF; Thu, 29 Aug 2024 08:00:32 +0000 (UTC) Received: from [10.39.208.9] (unknown [10.39.208.9]) by mx-prod-int-02.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id A7ECD19560AA; Thu, 29 Aug 2024 08:00:30 +0000 (UTC) Message-ID: <15d5518a-a636-4b7a-852d-075fb7622178@redhat.com> Date: Thu, 29 Aug 2024 10:00:27 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v1 1/3] bbdev: new k0 parameter for LDPC decoder operation To: Nicolas Chautru , dev@dpdk.org Cc: hemant.agrawal@nxp.com, david.marchand@redhat.com, hernan.vargas@intel.com References: <20240701212703.417094-1-nicolas.chautru@intel.com> <20240701212703.417094-2-nicolas.chautru@intel.com> From: Maxime Coquelin Autocrypt: addr=maxime.coquelin@redhat.com; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit 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 Hi, On 7/1/24 23:27, Nicolas Chautru wrote: > In latest 3GPP 38.212, the k0 value is not necessaraly directly necessarily* > derived from rv_index, in that case a value can be provided in > API. When this value is non null this would override the value > which would be computed purely from rv_index. > > Signed-off-by: Nicolas Chautru > --- > doc/guides/prog_guide/bbdev.rst | 2 ++ > lib/bbdev/rte_bbdev_op.h | 4 ++++ > 2 files changed, 6 insertions(+) > > diff --git a/doc/guides/prog_guide/bbdev.rst b/doc/guides/prog_guide/bbdev.rst > index 09e5f0d990..e3f356450b 100644 > --- a/doc/guides/prog_guide/bbdev.rst > +++ b/doc/guides/prog_guide/bbdev.rst > @@ -1021,6 +1021,8 @@ The LDPC decode parameters are set out in the table below. > +----------------+------------+-------------------------------------------------------+ > | |eb |Eb, length of the RM output sequence in bits r >= cab | > +----------------+------------+-------------------------------------------------------+ > +| |k0 |Optional k0 Rate matching starting position override | > ++----------------+------------+-------------------------------------------------------+ > > The mbuf input ``input`` encoded CB data is mandatory for all BBDEV PMDs > and is the Virtual Circular Buffer data stream with null padding. > diff --git a/lib/bbdev/rte_bbdev_op.h b/lib/bbdev/rte_bbdev_op.h > index 459631d0d0..b5dde116ab 100644 > --- a/lib/bbdev/rte_bbdev_op.h > +++ b/lib/bbdev/rte_bbdev_op.h > @@ -562,6 +562,10 @@ struct rte_bbdev_op_ldpc_dec { > /** Struct which stores Transport Block specific parameters */ > struct rte_bbdev_op_dec_ldpc_tb_params tb_params; > }; > + /** Optional k0 Rate matching starting position, overrides rv_index when non null > + * [3GPP TS38.212, section 5.4.2.1] > + */ > + uint16_t k0; > }; > /* >8 End of structure rte_bbdev_op_ldpc_dec. */ > Will fix the typo while applying. Reviewed-by: Maxime Coquelin Also reporting Hemant's Ack on the cover letter as patchwork doesn't report them: Acked-by: Hemant Agrawal Thanks, Maxime