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From: "Ji, Kai" <kai.ji@intel.com>
To: "O'Sullivan, Kevin" <kevin.osullivan@intel.com>, "dev@dpdk.org"
 <dev@dpdk.org>
CC: "Coyle, David" <david.coyle@intel.com>
Subject: RE: [PATCH v3 2/2] crypto/qat: add cipher-crc offload support
Thread-Topic: [PATCH v3 2/2] crypto/qat: add cipher-crc offload support
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References: <20230309143359.67789-1-kevin.osullivan@intel.com>
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Acked-by: Kai Ji <kai.ji@intel.com>

> -----Original Message-----
> From: O'Sullivan, Kevin <kevin.osullivan@intel.com>
> Sent: Monday, March 13, 2023 2:26 PM
> To: dev@dpdk.org
> Cc: Ji, Kai <kai.ji@intel.com>; O'Sullivan, Kevin
> <kevin.osullivan@intel.com>; Coyle, David <david.coyle@intel.com>
> Subject: [PATCH v3 2/2] crypto/qat: add cipher-crc offload support
>=20
> This patch adds support to the QAT symmetric crypto PMD for combined
> cipher-crc offload feature, primarily for DOCSIS, on gen2/gen3/gen4 QAT
> devices.
>=20
> A new parameter called qat_sym_cipher_crc_enable has been added to the PM=
D,
> which can be set on process start as follows:
>=20
> -a <qat pci bdf>,qat_sym_cipher_crc_enable=3D1
>=20
> When enabled, a capability check for the combined cipher-crc offload
> feature is triggered to the QAT firmware during queue pair initialization=
.
> If supported by the firmware, any subsequent runtime DOCSIS cipher-crc
> requests handled by the QAT PMD are offloaded to the QAT device by settin=
g
> up the content descriptor and request accordingly.
>=20
> If the combined DOCSIS cipher-crc feature is not supported by the firmwar=
e,
> the CRC continues to be calculated within the PMD, with just the cipher
> portion of the request being offloaded to the QAT device.
>=20
> Signed-off-by: Kevin O'Sullivan <kevin.osullivan@intel.com>
> Signed-off-by: David Coyle <david.coyle@intel.com>
> ---
> 2.34.1