linux-kernel - Re: [PATCH net-next 1/6] net/mlx5: HWS, Enable IPSec hardware offload in legacy mode

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Message-ID: <aHSm7SHg1xTMNE0F@mev-dev.igk.intel.com>
Date: Mon, 14 Jul 2025 08:43:04 +0200
From: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>
To: Tariq Toukan <tariqt@...dia.com>
Cc: Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Saeed Mahameed <saeed@...nel.org>, Gal Pressman <gal@...dia.com>,
	Leon Romanovsky <leon@...nel.org>,
	Saeed Mahameed <saeedm@...dia.com>, Mark Bloch <mbloch@...dia.com>,
	netdev@...r.kernel.org, linux-rdma@...r.kernel.org,
	linux-kernel@...r.kernel.org, Lama Kayal <lkayal@...dia.com>
Subject: Re: [PATCH net-next 1/6] net/mlx5: HWS, Enable IPSec hardware
 offload in legacy mode

On Mon, Jul 14, 2025 at 08:39:40AM +0300, Tariq Toukan wrote:
> From: Lama Kayal <lkayal@...dia.com>
> 
> IPSec hardware offload in legacy mode should not be affected by the
> steering mode, hence it should also work properly with hmfs mode.

What about dmfs mode? I am not sure, if you didn't remove it because it
is still needed or just forgot about removing it.

In case it is ok as it is:
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>

Thanks

> 
> Remove steering mode validation when calculating the cap for packet
> offload, this will also enable the missing cap MLX5_IPSEC_CAP_PRIO
> needed for crypto offload.
> 
> Signed-off-by: Lama Kayal <lkayal@...dia.com>
> Reviewed-by: Jianbo Liu <jianbol@...dia.com>
> Signed-off-by: Tariq Toukan <tariqt@...dia.com>
> ---
>  .../net/ethernet/mellanox/mlx5/core/en_accel/ipsec_offload.c   | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_offload.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_offload.c
> index 820debf3fbbf..ef7322d381af 100644
> --- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_offload.c
> +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_offload.c
> @@ -42,8 +42,7 @@ u32 mlx5_ipsec_device_caps(struct mlx5_core_dev *mdev)
>  
>  	if (MLX5_CAP_IPSEC(mdev, ipsec_full_offload) &&
>  	    (mdev->priv.steering->mode == MLX5_FLOW_STEERING_MODE_DMFS ||
> -	     (mdev->priv.steering->mode == MLX5_FLOW_STEERING_MODE_SMFS &&
> -	     is_mdev_legacy_mode(mdev)))) {
> +	     is_mdev_legacy_mode(mdev))) {
>  		if (MLX5_CAP_FLOWTABLE_NIC_TX(mdev,
>  					      reformat_add_esp_trasport) &&
>  		    MLX5_CAP_FLOWTABLE_NIC_RX(mdev,
> -- 
> 2.40.1
>