From patchwork Fri Jun 21 18:13:03 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Grygorii Strashko X-Patchwork-Id: 11010523 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id BA65F14E5 for ; Fri, 21 Jun 2019 18:15:25 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A9C4720587 for ; Fri, 21 Jun 2019 18:15:25 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9BFD32869F; Fri, 21 Jun 2019 18:15:25 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D64FA20587 for ; Fri, 21 Jun 2019 18:15:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726556AbfFUSOO (ORCPT ); Fri, 21 Jun 2019 14:14:14 -0400 Received: from fllv0015.ext.ti.com ([198.47.19.141]:37632 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726017AbfFUSON (ORCPT ); Fri, 21 Jun 2019 14:14:13 -0400 Received: from lelv0266.itg.ti.com ([10.180.67.225]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id x5LIDO9b093884; Fri, 21 Jun 2019 13:13:24 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1561140804; bh=tb5A5ehXhFlHKqGEjrLhCvWDs+f6NTPxYCOYamFA4Qc=; h=From:To:CC:Subject:Date; b=OBRUDDm98e9kCBwCKav5HQiDBDP+FbzAk0iwLAjG6iS5Gu9vgLiwkGYg+KVBOeH1j Hw9S5/0e4ZiAv0oy5DerUSSNpRhRY+oeJEYCj1NI0PA71d3UTiGTYxQzZqb41UZAnd Zrui44JkZwSy6Izmme2YgDj1WS8wo62mI+JQBrm8= Received: from DFLE112.ent.ti.com (dfle112.ent.ti.com [10.64.6.33]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id x5LIDOvd002604 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 21 Jun 2019 13:13:24 -0500 Received: from DFLE103.ent.ti.com (10.64.6.24) by DFLE112.ent.ti.com (10.64.6.33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5; Fri, 21 Jun 2019 13:13:24 -0500 Received: from fllv0039.itg.ti.com (10.64.41.19) by DFLE103.ent.ti.com (10.64.6.24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5 via Frontend Transport; Fri, 21 Jun 2019 13:13:23 -0500 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id x5LIDMs7113027; Fri, 21 Jun 2019 13:13:23 -0500 From: Grygorii Strashko To: , Ilias Apalodimas , Andrew Lunn , "David S . Miller" , Ivan Khoronzhuk , Jiri Pirko CC: Florian Fainelli , Sekhar Nori , , , Murali Karicheri , Ivan Vecera , Rob Herring , , Grygorii Strashko Subject: [RFC PATCH v4 net-next 00/11] net: ethernet: ti: introduce new cpsw switchdev based driver Date: Fri, 21 Jun 2019 21:13:03 +0300 Message-ID: <20190621181314.20778-1-grygorii.strashko@ti.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Hi All, This series based on work [1][2] done by Ilias Apalodimas . This the RFC v4 which introduces new CPSW switchdev based driver which is operating in dual-emac mode by default, thus working as 2 individual network interfaces. The Switch mode can be enabled by configuring devlink driver parameter "switch_mode" to 1/true: devlink dev param set platform/48484000.ethernet_switch \ name switch_mode value 1 cmode runtime This can be done regardless of the state of Port's netdev devices - UP/DOWN, but Port's netdev devices have to be in UP before joining the bridge to avoid overwriting of bridge configuration as CPSW switch driver completely reloads its configuration when first Port changes its state to UP. When the both interfaces joined the bridge - CPSW switch driver will start marking packets with offload_fwd_mark flag unless "ale_bypass=0". All configuration is implemented via switchdev API. The previous solution of tracking both Ports joined the bridge (from netdevice_notifier) proved to be not correct as changing CPSW switch driver mode required cleanup of ALE table and CPSW settings which happens while second Port is joined bridge and as result configuration loaded by bridge for the first Port became corrupted. The introduction of the new CPSW switchdev based driver (cpsw_new.c) is split on two parts: Part 1 - basic dual-emac driver; Part 2 switchdev support. Such approach has simplified code development and testing alot. And, I hope, it will help with better review. patches #1 - 4: preparation patches which also moves common code to cpsw_priv.c patches #5 - 8: Introduce TI CPSW switch driver based on switchdev and new DT bindings patch #9: CPSW switchdev driver documentation patch #10: DT nodes for new CPSW switchdev driver added for DRA7/am571x-idk as and example. patch #11: enables build of TI CPSW driver Most of the contents of the previous cover-letter have been added in new driver documentation, so please refer to that for configuration, testing and future work. These patches can be found at: git@git.ti.com:~gragst/ti-linux-kernel/gragsts-ti-linux-kernel.git branch: lkml-5.1-switch-tbd-v2 [1] https://patchwork.ozlabs.org/cover/929367/ [2] https://patches.linaro.org/cover/136709/ Changes in v4: - finished split of common CPSW code - added devlink support - changed CPSW mode configuration approach: from netdevice_notifier to devlink parameter - refactor and clean up ALE changes which allows to modify VLANs/MDBs entries - added missed support for port QDISC_CBS and QDISC_MQPRIO - the CPSW is split on two parts: basic dual_mac driver and switchdev support - added missed callback .ndo_get_port_parent_id() - reworked ingress frames marking in switch mode (offload_fwd_mark) - applied comments from Andrew Lunn v3: https://lwn.net/Articles/786677/ Changes in v3: - alot of work done to split properly common code between legacy and switchdev CPSW drivers and clean up code - CPSW switchdev interface updated to the current LKML switchdev interface - actually new CPSW switchdev based driver introduced - optimized dual_mac mode in new driver. Main change is that in promiscuous mode P0_UNI_FLOOD (both ports) is enabled in addition to ALLMULTI (current port) instead of ALE_BYPASS. So, port in non promiscuous mode will keep possibility of mcast and vlan filtering. - changed bridge join sequnce: now switch mode will be enabled only when both ports joined the bridge. CPSW will be switched to dual_mac mode if any port leave bridge. ALE table is completly cleared and then refiled while switching to switch mode - this simplidies code a lot, but introduces some limitation to bridge setup sequence: ip link add name br0 type bridge ip link set dev br0 type bridge ageing_time 1000 ip link set dev br0 type bridge vlan_filtering 0 <- disable echo 0 > /sys/class/net/br0/bridge/default_vlan ip link set dev sw0p1 up <- add ports ip link set dev sw0p2 up ip link set dev sw0p1 master br0 ip link set dev sw0p2 master br0 echo 1 > /sys/class/net/br0/bridge/default_vlan <- enable ip link set dev br0 type bridge vlan_filtering 1 bridge vlan add dev br0 vid 1 pvid untagged self - STP tested with vlan_filtering 1/0. To make STP work I've had to set NO_SA_UPDATE for all slave ports (see comment in code). It also required to statically register STP mcast address {0x01, 0x80, 0xc2, 0x0, 0x0, 0x0}; - allowed build both TI_CPSW and TI_CPSW_SWITCHDEV drivers - PTP can be enabled on both ports in dual_mac mode Grygorii Strashko (7): net: ethernet: ti: cpsw: allow untagged traffic on host port net: ethernet: ti: cpsw: resolve build deps of cpsw drivers net: ethernet: ti: cpsw: move set of common functions in cpsw_priv dt-bindings: net: ti: add new cpsw switch driver bindings phy: ti: phy-gmii-sel: dependency from ti cpsw-switchdev driver ARM: dts: am57xx-idk: add dt nodes for new cpsw switch dev driver arm: omap2plus_defconfig: enable CONFIG_TI_CPSW_SWITCHDEV Ilias Apalodimas (4): net: ethernet: ti: cpsw: ale: modify vlan/mdb api for switchdev net: ethernet: ti: introduce cpsw switchdev based driver part 1 - dual-emac net: ethernet: ti: introduce cpsw switchdev based driver part 2 - switch Documentation: networking: add cpsw switchdev based driver documentation .../bindings/net/ti,cpsw-switch.txt | 147 ++ .../device_drivers/ti/cpsw_switchdev.txt | 207 ++ arch/arm/boot/dts/am571x-idk.dts | 28 + arch/arm/boot/dts/am572x-idk.dts | 5 + arch/arm/boot/dts/am574x-idk.dts | 5 + arch/arm/boot/dts/am57xx-idk-common.dtsi | 2 +- arch/arm/boot/dts/dra7-l4.dtsi | 53 + arch/arm/configs/omap2plus_defconfig | 1 + drivers/net/ethernet/ti/Kconfig | 19 +- drivers/net/ethernet/ti/Makefile | 2 + drivers/net/ethernet/ti/cpsw.c | 978 +-------- drivers/net/ethernet/ti/cpsw_ale.c | 146 +- drivers/net/ethernet/ti/cpsw_ale.h | 11 + drivers/net/ethernet/ti/cpsw_new.c | 1913 +++++++++++++++++ drivers/net/ethernet/ti/cpsw_priv.c | 977 ++++++++- drivers/net/ethernet/ti/cpsw_priv.h | 47 +- drivers/net/ethernet/ti/cpsw_switchdev.c | 589 +++++ drivers/net/ethernet/ti/cpsw_switchdev.h | 15 + drivers/phy/ti/Kconfig | 4 +- 19 files changed, 4157 insertions(+), 992 deletions(-) create mode 100644 Documentation/devicetree/bindings/net/ti,cpsw-switch.txt create mode 100644 Documentation/networking/device_drivers/ti/cpsw_switchdev.txt create mode 100644 drivers/net/ethernet/ti/cpsw_new.c create mode 100644 drivers/net/ethernet/ti/cpsw_switchdev.c create mode 100644 drivers/net/ethernet/ti/cpsw_switchdev.h