linux-kernel - Re: [PATCH bpf-next v4 02/10] bpf: xfrm: Add bpf_xdp_get_xfrm

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Message-ID: <ZXGyPt1GUVH1amA/@gauss3.secunet.de>
Date:   Thu, 7 Dec 2023 12:53:34 +0100
From:   Steffen Klassert <steffen.klassert@...unet.com>
To:     Daniel Xu <dxu@...uu.xyz>
CC:     <ast@...nel.org>, <daniel@...earbox.net>, <davem@...emloft.net>,
        "Herbert Xu" <herbert@...dor.apana.org.au>, <pabeni@...hat.com>,
        <hawk@...nel.org>, <john.fastabend@...il.com>, <kuba@...nel.org>,
        <edumazet@...gle.com>, <antony.antony@...unet.com>,
        <alexei.starovoitov@...il.com>, <yonghong.song@...ux.dev>,
        <eddyz87@...il.com>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <bpf@...r.kernel.org>,
        <devel@...ux-ipsec.org>
Subject: Re: [PATCH bpf-next v4 02/10] bpf: xfrm: Add
 bpf_xdp_get_xfrm_state() kfunc

On Mon, Dec 04, 2023 at 01:56:22PM -0700, Daniel Xu wrote:
> This commit adds an unstable kfunc helper to access internal xfrm_state
> associated with an SA. This is intended to be used for the upcoming
> IPsec pcpu work to assign special pcpu SAs to a particular CPU. In other
> words: for custom software RSS.
> 
> That being said, the function that this kfunc wraps is fairly generic
> and used for a lot of xfrm tasks. I'm sure people will find uses
> elsewhere over time.
> 
> Co-developed-by: Antony Antony <antony.antony@...unet.com>
> Signed-off-by: Antony Antony <antony.antony@...unet.com>
> Signed-off-by: Daniel Xu <dxu@...uu.xyz>

Acked-by: Steffen Klassert <steffen.klassert@...unet.com>