From patchwork Thu Nov 30 09:11:47 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 13474151 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 8819E2F86F; Thu, 30 Nov 2023 09:12:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="WhPLe7+y" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7F20BC433C8; Thu, 30 Nov 2023 09:12:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1701335524; bh=Qg61lpLbgqDeoofePJmkszRcZdvneo2mvpoD+dzpgAA=; h=From:To:Cc:Subject:Date:From; b=WhPLe7+ynS3+Fu8ilfb3vYWnml4KeNblJTGW8uu6XV3dyI81omq2U7ZJc1rcZL9+9 MGF9e2F2XUz8QfdqSd4ZxZWBXhwkIRCra8EKoKP6Kf8sa4idLqYEqD7IJ3xqul2oXo Efjp/fYZXiFOtm2bXh0YcEEWHPoYnS/kRP4pP7/CctOFerXXew+e/Jb/G7hCzWmEkV iiXkQRqwHmDYVs1nFjZneulfKxrUDDNE/446Jt/J4JKrkk0teasWsaNZQ9WJM5HpxU pRzuQsNXUhSnDXuNlQVqH91ZfNBFxqQ5H7r58EKahHGTJlWVQC6jNVfWPTiscyNdeR /uOUyCrn0kdYQ== From: Lorenzo Bianconi To: netdev@vger.kernel.org Cc: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, lorenzo.bianconi@redhat.com, bpf@vger.kernel.org, hawk@kernel.org, toke@redhat.com, willemdebruijn.kernel@gmail.com, jasowang@redhat.com Subject: [PATCH v2 net-next 0/2] add multi-buff support for xdp running in generic mode Date: Thu, 30 Nov 2023 10:11:47 +0100 Message-ID: X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: kuba@kernel.org Introduce multi-buffer support for xdp running in generic mode not always linearizing the skb in netif_receive_generic_xdp routine. Changes since v1: - explictly keep the skb segmented in netif_skb_check_for_generic_xdp() and do not rely on pskb_expand_head() Lorenzo Bianconi (2): xdp: rely on skb pointer reference in do_xdp_generic and netif_receive_generic_xdp xdp: add multi-buff support for xdp running in generic mode drivers/net/tun.c | 4 +- include/linux/netdevice.h | 2 +- net/core/dev.c | 158 ++++++++++++++++++++++++++++++-------- 3 files changed, 130 insertions(+), 34 deletions(-)