From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 16E5D14AD3E; Fri, 2 Feb 2024 17:42:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706895735; cv=none; b=MUL3Jah+/iy/m15OolN+frvsQ70DXVayROFAQnIE0+Vg2dLXAKBO0Bx8iOotlu4Qn/Ce0onBEwD48I7kjVNckbicJoanq1lCJMdrPv1wH8FLjDhu81tNwbhteDYlB7yWlRmY5cmSDb5WRIOgWzQWygVQF6GEuIYyq27isRRqZ7I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706895735; c=relaxed/simple; bh=UEGbiqyOGWOHIeI3GpSUM+EsevycrF3034xdOX/lang=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=Z0s9qcEa0sHsrOnIYzCjb1XCc8RbXmi0r9smP/Hcr/tzKxQAP+hMMou4vlAKtNhZqHh3z6afo7pYzfCvHJlkW2i5/JROa919vNSAN7l3E2yDacypdWFh/DLg54qze0Fw6ah+1/XJVkWIsxDYb5kzUIx3JufYnZ6iM7q0wbbXu3I= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=XT5XuxCa; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="XT5XuxCa" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 102D5C433C7; Fri, 2 Feb 2024 17:42:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1706895734; bh=UEGbiqyOGWOHIeI3GpSUM+EsevycrF3034xdOX/lang=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=XT5XuxCaIX9dtL8BjUAOnS6tHB1RsEWTWtT6ai0gTBFiMwC7vWC2RuQH8QVw9KPfH 1sCGgk1pdHlwLWxdvz9OG7eUjSCJlq3rg8XgfX0iQZgiTnPnwhBqYFMr+zKyie17I2 eHRfkiCzqgp/1gfrxRIMtofcamDNMBiWyQu0BkQvWQ6CeMB+L7wyLtc0tBBm1Ds1EO 4u6NRbsBPuRNDaKC7VMtszUMBLhvj8E3uT0+ss7pKz7IrlgKAHJYFC9pJ4laYRcBDC NAjb2Ypnv+zYTbwSOXq1FZGXNJTKuDsBBGiL/YYy6b393BQq+o6VAAVA4ZfIG6ZSwe M6Tt6aS+hUMfQ== Message-ID: Date: Fri, 2 Feb 2024 18:42:10 +0100 Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v7 net-next 3/4] xdp: add multi-buff support for xdp running in generic mode Content-Language: en-US To: Lorenzo Bianconi , netdev@vger.kernel.org Cc: lorenzo.bianconi@redhat.com, davem@davemloft.net, kuba@kernel.org, edumazet@google.com, pabeni@redhat.com, bpf@vger.kernel.org, toke@redhat.com, willemdebruijn.kernel@gmail.com, jasowang@redhat.com, sdf@google.com, ilias.apalodimas@linaro.org, linyunsheng@huawei.com References: <35486ef21c3a74931e81b5e9c604734781ca1213.1706861261.git.lorenzo@kernel.org> From: Jesper Dangaard Brouer In-Reply-To: <35486ef21c3a74931e81b5e9c604734781ca1213.1706861261.git.lorenzo@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 02/02/2024 09.12, Lorenzo Bianconi wrote: > Similar to native xdp, do not always linearize the skb in > netif_receive_generic_xdp routine but create a non-linear xdp_buff to be > processed by the eBPF program. This allow to add multi-buffer support > for xdp running in generic mode. > > Signed-off-by: Lorenzo Bianconi > --- > include/linux/skbuff.h | 2 + > net/core/dev.c | 70 +++++++++++++++++++++++--------- > net/core/skbuff.c | 91 ++++++++++++++++++++++++++++++++++++++++++ > 3 files changed, 144 insertions(+), 19 deletions(-) Acked-by: Jesper Dangaard Brouer