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Date: Thu, 11 Jun 2026 14:56:46 +0300
From: Leon Romanovsky <leon@kernel.org>
To: Jihong Min <hurryman2212@gmail.com>
Cc: Christian Marangi <ansuelsmth@gmail.com>,
	Antoine Tenart <atenart@kernel.org>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	"David S . Miller" <davem@davemloft.net>,
	Lorenzo Bianconi <lorenzo@kernel.org>,
	Andrew Lunn <andrew+netdev@lunn.ch>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Simon Horman <horms@kernel.org>,
	Steffen Klassert <steffen.klassert@secunet.com>,
	linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-mediatek@lists.infradead.org, netdev@vger.kernel.org
Subject: Re: [PATCH 1/3] xfrm: extend ESP offload infrastructure for packet
 engines
Message-ID: <20260611115646.GN327369@unreal>
References: <20260523121522.3023992-1-hurryman2212@gmail.com>
 <20260523121522.3023992-2-hurryman2212@gmail.com>
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In-Reply-To: <20260523121522.3023992-2-hurryman2212@gmail.com>

On Sat, May 23, 2026 at 09:15:20PM +0900, Jihong Min wrote:
> Some ESP offload engines operate on whole ESP packets rather than the
> generic software trailer layout. They can generate outbound ESP padding,
> next-header and ICV bytes in hardware, and inbound decapsulation can
> return an already-trimmed packet with the recovered next-header value.

How does this differ from the existing IPsec packet‑offload support in the
Linux kernel?

Thanks