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From: "Chautru, Nicolas" <nicolas.chautru@intel.com>
To: Ginés García Avilés <gines.garcia@i2cat.net>,
	"users@dpdk.org" <users@dpdk.org>
Subject: RE: [test-bbdev] Custom test-vector
Date: Wed, 10 Nov 2021 18:21:46 +0000
Message-ID: <BY5PR11MB44513E08A5BF91E6EE0C2F41F8939@BY5PR11MB4451.namprd11.prod.outlook.com> (raw)
In-Reply-To: <CAFggs4NfGT7j3EFkttNJfurn+m-vFT5ZbG7f-LMAuLk86e00Ww@mail.gmail.com>

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Hi Gines,
What do you mean by “flexran DPDK” vs “bbdev”? “The generated LLRs vector is directly decodable by flexRAN DPDK but when using it through
The format of the input/output data is defined in the documentation. Basically 1 byte per LLR and captured in vectors with CPU endianness and processing as per 3gpp.


From: Ginés García Avilés <gines.garcia@i2cat.net>
Sent: Wednesday, November 10, 2021 4:28 AM
To: users@dpdk.org
Cc: Chautru, Nicolas <nicolas.chautru@intel.com>
Subject: [test-bbdev] Custom test-vector

I'm still trying to generate test vectors for the bbdev application within
DPDK. More precisely, I want to create a test vector to run an LDPC decoding operation.

For that, I'm generating the LLRs with matlab (5G NR toolbox) as follows:
  1) LDPC encoding + rate matching + modulation
  2) Demodulation + rate recover

The generated LLRs vector is directly decodable by flexRAN DPDK but when using it through
bbdev, it takes max iterations to decode, meaning that the decoding process was

Any ideas/documentation about how to properly create the test vectors?

PS: previous question here (https://mails.dpdk.org/archives/users/2021-October/005864.html)


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  reply	other threads:[~2021-11-10 18:21 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-10 12:28 Ginés García Avilés
2021-11-10 18:21 ` Chautru, Nicolas [this message]
2021-11-11  8:22   ` Ginés García Avilés
2021-11-11 15:17     ` Chautru, Nicolas
2021-11-11 16:12       ` Ginés García Avilés

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