From patchwork Wed Aug 18 19:07:51 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 12445069 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DFE8CC432BE for ; Wed, 18 Aug 2021 19:08:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C44C3610FD for ; Wed, 18 Aug 2021 19:08:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233514AbhHRTI4 (ORCPT ); Wed, 18 Aug 2021 15:08:56 -0400 Received: from relmlor1.renesas.com ([210.160.252.171]:34990 "EHLO relmlie5.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S233350AbhHRTIo (ORCPT ); Wed, 18 Aug 2021 15:08:44 -0400 X-IronPort-AV: E=Sophos;i="5.84,332,1620658800"; d="scan'208";a="91033541" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 19 Aug 2021 04:08:06 +0900 Received: from localhost.localdomain (unknown [10.226.93.61]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 3061140D5D86; Thu, 19 Aug 2021 04:08:03 +0900 (JST) From: Biju Das To: "David S. Miller" , Jakub Kicinski Cc: Biju Das , Sergei Shtylyov , Geert Uytterhoeven , Sergey Shtylyov , Adam Ford , Andrew Lunn , Yuusuke Ashizuka , Yoshihiro Shimoda , Yang Yingliang , netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Chris Paterson , Biju Das , Prabhakar Mahadev Lad Subject: [PATCH net-next v3 0/9] Add Gigabit Ethernet driver support Date: Wed, 18 Aug 2021 20:07:51 +0100 Message-Id: <20210818190800.20191-1-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.17.1 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org The DMAC and EMAC blocks of Gigabit Ethernet IP found on RZ/G2L SoC are similar to the R-Car Ethernet AVB IP. The Gigabit Ethernet IP consists of Ethernet controller (E-MAC), Internal TCP/IP Offload Engine (TOE) and Dedicated Direct memory access controller (DMAC). With a few changes in the driver we can support both IPs. Currently a runtime decision based on the chip type is used to distinguish the HW differences between the SoC families. This patch series is in preparation for supporting the RZ/G2L SoC by replacing driver data chip type with struct ravb_hw_info by moving chip type to it and also adding gstrings_stats, gstrings_size, net_hw_features, net_features, aligned_tx, stats_len, max_rx_len variables to it. This patch also adds the feature bit for {RX, TX} clock internal delays and TX counters HW features found on R-Car Gen3 to struct ravb_hw_info. This patch series is based on net-next. v2->v3: * Removed num_gstat_queue variable from struct ravb_hw_info. * started using unsigned int for num_tx_desc variable in struct ravb_private * split the patch 'Add struct ravb_hw_info to driver data' into two * Renamed skb_sz to max_rx_len and tx_drop_cntrs to tx_counters and also updated the comments. v1->v2: * Replaced driver data chip type with struct ravb_hw_info * Added gstrings_stats, gstrings_size, net_hw_features, net_features, num_gstat_queue, num_tx_desc, stats_len, skb_sz to struct ravb_hw_info * Added internal_delay and tx_drop_cntrs hw feature bit to struct ravb_hw_info RFC->V1 * Incorporated feedback from Andrew, Sergei, Geert and Prabhakar * https://patchwork.kernel.org/project/linux-renesas-soc/list/?series=515525 Biju Das (9): ravb: Use unsigned int for num_tx_desc variable in struct ravb_private ravb: Add struct ravb_hw_info to driver data ravb: Add aligned_tx to struct ravb_hw_info ravb: Add max_rx_len to struct ravb_hw_info ravb: Add stats_len to struct ravb_hw_info ravb: Add gstrings_stats and gstrings_size to struct ravb_hw_info ravb: Add net_features and net_hw_features to struct ravb_hw_info ravb: Add internal delay hw feature to struct ravb_hw_info ravb: Add tx_counters to struct ravb_hw_info drivers/net/ethernet/renesas/ravb.h | 19 +++- drivers/net/ethernet/renesas/ravb_main.c | 112 ++++++++++++++--------- 2 files changed, 89 insertions(+), 42 deletions(-)