From patchwork Mon Sep 30 16:08:34 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Barker X-Patchwork-Id: 13816644 Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by smtp.subspace.kernel.org (Postfix) with ESMTP id CE51235894; Mon, 30 Sep 2024 16:09:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.160.252.171 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727712556; cv=none; b=F+rlRmyTLWY5g127/BHFyZc9pIVqPHMk4nd3ww2mEVfNtGd9+1O8ZUeJBwrrpuN3sgUYcMQ+GKuYVVvNoZlbFZCH2ipYvCmCdJanltpn2Q7P0ubSkC0AiK9lF40Pg13m77audRX60crFdPegCQhB0gJQqYimz1CSWMwxVmN1HQM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727712556; c=relaxed/simple; bh=FyK/Mzd+tY6qVJFWXiALuT8RBko0XuRXwKjMSp2eVy8=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=m/SD29gYUxaTmAqxqX6x/D746n1Jhgp5c8zUpOFuYw0yQBU5Bwz4Kt0abDLWJb6Ek3U7Nd1kAAa+XdkdeXkiX8dLHytCpaJ6N0b+LOz1hxhI3uKV0Oz0pIzU5Q0w/zSRxP/5U3k8dh4uSzbIbjMuyo7dfGCBURi+/5zZzSL3E34= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pbarker.dev; spf=fail smtp.mailfrom=pbarker.dev; arc=none smtp.client-ip=210.160.252.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pbarker.dev Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=pbarker.dev X-IronPort-AV: E=Sophos;i="6.11,166,1725289200"; d="scan'208";a="220371929" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 01 Oct 2024 01:09:12 +0900 Received: from GBR-5CG2373LKG.adwin.renesas.com (unknown [10.226.93.43]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id B37674014DA5; Tue, 1 Oct 2024 01:08:57 +0900 (JST) From: Paul Barker To: Sergey Shtylyov , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: Paul Barker , Geert Uytterhoeven , =?utf-8?q?Niklas_S=C3=B6derlu?= =?utf-8?q?nd?= , Biju Das , Claudiu Beznea , netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [net-next PATCH 00/11] Extend GbEth checksum offload support to VLAN/IPv6 packets Date: Mon, 30 Sep 2024 17:08:34 +0100 Message-Id: <20240930160845.8520-1-paul@pbarker.dev> X-Mailer: git-send-email 2.39.2 Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Paul Barker The GbEth IP found in Renesas RZ/G2L, RZ/G3S and related SoCs supports hardware checksum offload for packets in the following cases: - there are zero or one VLAN headers with TPID=0x8100 - the network protocol is IPv4 or IPv6 - the transport protocol is TCP, UDP or ICMP - the packet is not fragmented To complete the support for all these cases in the ravb driver, we need to add handling for ICMP packets, VLAN-tagged packets and IPv6 packets in both the TX and RX code paths. These patches also do some refactoring/tidy-up, drop unnecessary checks from performance sensitive code paths and disable unnecessary IP header checksum offloading. Paul Barker (11): net: ravb: Factor out checksum offload enable bits net: ravb: Disable IP header RX checksum offloading net: ravb: Drop IP protocol check from RX csum verification net: ravb: Combine if conditions in RX csum validation net: ravb: Simplify types in RX csum validation net: ravb: Disable IP header TX checksum offloading net: ravb: Simplify UDP TX checksum offload net: ravb: Support ICMP TX checksum offload for GbEth net: ravb: Enable IPv6 RX checksum offloading for GbEth net: ravb: Enable IPv6 TX checksum offload for GbEth net: ravb: Add VLAN checksum support drivers/net/ethernet/renesas/ravb.h | 7 ++ drivers/net/ethernet/renesas/ravb_main.c | 108 +++++++++++++---------- 2 files changed, 68 insertions(+), 47 deletions(-)