RE: [PATCH] crypto/ipsec_mb: fix zuc256 maximum tag length

["Dooley, Brian" <brian.dooley@intel.com>]

Hi Ciara,

> -----Original Message-----
> From: Ciara Power <ciara.power@intel.com>
> Sent: Tuesday 31 January 2023 17:20
> To: Ji, Kai <kai.ji@intel.com>; De Lara Guarch, Pablo
> <pablo.de.lara.guarch@intel.com>
> Cc: dev@dpdk.org; Power, Ciara <ciara.power@intel.com>
> Subject: [PATCH] crypto/ipsec_mb: fix zuc256 maximum tag length
> 
> The AESNI_MB PMD supports 8 and 16 byte tag lengths for ZUC256 when
> intel-ipsec-mb version is 1.3 or newer.
> The conditional check to enable these tag lengths had the incorrect operator,
> which enabled 8 and 16 byte tag lengths for versions below 1.2, which is not
> supported.
> 
> Fixes: 7babda4316f9 ("crypto/ipsec_mb: support all tag sizes for ZUC-EIA3-
> 256")
> Cc: pablo.de.lara.guarch@intel.com
> 
> Signed-off-by: Ciara Power <ciara.power@intel.com>
> ---
>  drivers/crypto/ipsec_mb/pmd_aesni_mb.c      | 2 +-
>  drivers/crypto/ipsec_mb/pmd_aesni_mb_priv.h | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/crypto/ipsec_mb/pmd_aesni_mb.c
> b/drivers/crypto/ipsec_mb/pmd_aesni_mb.c
> index 147a38932d..ac20d01937 100644
> --- a/drivers/crypto/ipsec_mb/pmd_aesni_mb.c
> +++ b/drivers/crypto/ipsec_mb/pmd_aesni_mb.c
> @@ -199,7 +199,7 @@ aesni_mb_set_session_auth_parameters(const
> IMB_MGR *mb_mgr,
>  			}
>  		} else if (xform->auth.key.length == 32) {
>  			sess->auth.algo = IMB_AUTH_ZUC256_EIA3_BITLEN;
> -#if IMB_VERSION(1, 2, 0) > IMB_VERSION_NUM
> +#if IMB_VERSION(1, 2, 0) < IMB_VERSION_NUM
>  			if (sess->auth.req_digest_len != 4 &&
>  					sess->auth.req_digest_len != 8 &&
>  					sess->auth.req_digest_len != 16) {
> diff --git a/drivers/crypto/ipsec_mb/pmd_aesni_mb_priv.h
> b/drivers/crypto/ipsec_mb/pmd_aesni_mb_priv.h
> index 55fafbbbec..8a7c74f621 100644
> --- a/drivers/crypto/ipsec_mb/pmd_aesni_mb_priv.h
> +++ b/drivers/crypto/ipsec_mb/pmd_aesni_mb_priv.h
> @@ -566,7 +566,7 @@ static const struct rte_cryptodev_capabilities
> aesni_mb_capabilities[] = {
>  				},
>  				.digest_size = {
>  					.min = 4,
> -#if IMB_VERSION(1, 2, 0) > IMB_VERSION_NUM
> +#if IMB_VERSION(1, 2, 0) < IMB_VERSION_NUM
>  					.max = 16,
>  					.increment = 4
>  #else
> --
> 2.25.1

Reviewed-by: Brian Dooley <brian.dooley@intel.com>