netdev - Re: [PATCH RFC xfrm-next v3 7/8] xfrm: add support to HW update soft and hard limits

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Message-ID: <20220925092006.GT2602992@gauss3.secunet.de>
Date:   Sun, 25 Sep 2022 11:20:06 +0200
From:   Steffen Klassert <steffen.klassert@...unet.com>
To:     Leon Romanovsky <leon@...nel.org>
CC:     Leon Romanovsky <leonro@...dia.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Jakub Kicinski <kuba@...nel.org>, <netdev@...r.kernel.org>,
        Paolo Abeni <pabeni@...hat.com>, Raed Salem <raeds@...dia.com>,
        Saeed Mahameed <saeedm@...dia.com>,
        Bharat Bhushan <bbhushan2@...vell.com>
Subject: Re: [PATCH RFC xfrm-next v3 7/8] xfrm: add support to HW update soft
 and hard limits

On Sun, Sep 04, 2022 at 04:15:41PM +0300, Leon Romanovsky wrote:
> From: Leon Romanovsky <leonro@...dia.com>
> 
> Both in RX and TX, the traffic that performs IPsec full offload
> transformation is accounted by HW. It is needed to properly handle
> hard limits that require to drop the packet.
> 
> It means that XFRM core needs to update internal counters with the one
> that accounted by the HW, so new callbacks are introduced in this patch.
> 
> In case of soft or hard limit is occurred, the driver should call to
> xfrm_state_check_expire() that will perform key rekeying exactly as
> done by XFRM core.
> 
> Signed-off-by: Leon Romanovsky <leonro@...dia.com>

This looks good, thanks!

We need this for the other relevant counters too.