From patchwork Mon Dec 7 22:03:53 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: George McCollister X-Patchwork-Id: 339510 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=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, 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 58071C2BB40 for ; Mon, 7 Dec 2020 22:05:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 34D342395A for ; Mon, 7 Dec 2020 22:05:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727857AbgLGWFe (ORCPT ); Mon, 7 Dec 2020 17:05:34 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55018 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727841AbgLGWFe (ORCPT ); Mon, 7 Dec 2020 17:05:34 -0500 Received: from mail-oi1-x229.google.com (mail-oi1-x229.google.com [IPv6:2607:f8b0:4864:20::229]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D23FCC061793; Mon, 7 Dec 2020 14:04:47 -0800 (PST) Received: by mail-oi1-x229.google.com with SMTP id k2so17188940oic.13; Mon, 07 Dec 2020 14:04:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=8oBl9KjioLGdvZQe78oUF1hHCAkedeTuyYTwJ3AREfw=; b=NY36p7FzDs/Wy1o1t9XO8PkGRVO3vayExlZWR+d+kLnOavie09dpgauX/EgOoL3xla lcS9YdNkPJe3lOPS/uDXp4H0HUpnSCSicwdO7JAPkCyhTM0TFXL0xgxcPM/1w6EccOts 3dyaxOpNQr4sA3lr77kJn9BtDO4nPPmaMTtCx1zHRHLTEktKfn2mlWXncBoRVuUbOx1V v7XOG1L6y0mqn+0gyd919M51VaZK3AMUFkSspwUPmHeeomf+arN15VLLhYoTkHvq4xhm SDx0TGE1UNEM4UziHueYbbhYFkrtHSWIQfeMhAa2uy/e0pTtxV0EeNn8ftAVIgc1q69n BJrg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=8oBl9KjioLGdvZQe78oUF1hHCAkedeTuyYTwJ3AREfw=; b=Nxlxo8tTYERQVJCkF98PLcoiEnYlTeDFwPgzgmTHWWkxyAqVyJgI8saH6Zb0vPU+UL r7QhM2nPg9R3YWLlqgsj5PXAv8z6Z6q3Q4z5O/aeAb9A3nuyuQwaXLq7rSzALfW/4TZn COKvE/SUFbLsgBuBLXLYWQDiQ3yazynQWoF30lr0lNxd1RbHurR5V3egRDe+68fbN6al bhxp+dk8cr1axWHDzcoDAyuPEoLaz1EQt+ZbLUBzua0QLErjpVyeSfIlps6OemXdd+Tk kbIRD85dbqI0nVDARIqOe7ZTpcS0oq+I7jhiZ/fkHfETY2VN60vUYFWtgw1zyiqxwdXQ xdtw== X-Gm-Message-State: AOAM532a1USIPA/pKTVDL7jmEUUt+kJz6YZuLY6pkC8m5NVS2MGLkRK0 bfIY+cZmyWCWlzSfxZkHXA== X-Google-Smtp-Source: ABdhPJxVvVI2/3Ko3PfDnWlsw5u9rOX+xae/yVIJJnc1zsrvOP0+ZwFNaT8lct/CSK034oeep19ykw== X-Received: by 2002:aca:1e06:: with SMTP id m6mr678701oic.100.1607378687292; Mon, 07 Dec 2020 14:04:47 -0800 (PST) Received: from threadripper.novatech-llc.local ([216.21.169.52]) by smtp.gmail.com with ESMTPSA id g5sm2940472otq.43.2020.12.07.14.04.45 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 07 Dec 2020 14:04:45 -0800 (PST) From: George McCollister To: Andrew Lunn , Vivien Didelot , Florian Fainelli , Vladimir Oltean Cc: "David S . Miller " , netdev@vger.kernel.org, devicetree@vger.kernel.org, George McCollister Subject: [PATCH net-next v3 1/3] dsa: add support for Arrow XRS700x tag trailer Date: Mon, 7 Dec 2020 16:03:53 -0600 Message-Id: <20201207220355.8707-2-george.mccollister@gmail.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20201207220355.8707-1-george.mccollister@gmail.com> References: <20201207220355.8707-1-george.mccollister@gmail.com> Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Add support for Arrow SpeedChips XRS700x single byte tag trailer. This is modeled on tag_trailer.c which works in a similar way. Signed-off-by: George McCollister Reviewed-by: Andrew Lunn Reviewed-by: Florian Fainelli --- include/net/dsa.h | 2 ++ net/dsa/Kconfig | 6 +++++ net/dsa/Makefile | 1 + net/dsa/tag_xrs700x.c | 67 +++++++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 76 insertions(+) create mode 100644 net/dsa/tag_xrs700x.c diff --git a/include/net/dsa.h b/include/net/dsa.h index 457b89143875..b54966b06dff 100644 --- a/include/net/dsa.h +++ b/include/net/dsa.h @@ -46,6 +46,7 @@ struct phylink_link_state; #define DSA_TAG_PROTO_AR9331_VALUE 16 #define DSA_TAG_PROTO_RTL4_A_VALUE 17 #define DSA_TAG_PROTO_HELLCREEK_VALUE 18 +#define DSA_TAG_PROTO_XRS700X_VALUE 19 enum dsa_tag_protocol { DSA_TAG_PROTO_NONE = DSA_TAG_PROTO_NONE_VALUE, @@ -67,6 +68,7 @@ enum dsa_tag_protocol { DSA_TAG_PROTO_AR9331 = DSA_TAG_PROTO_AR9331_VALUE, DSA_TAG_PROTO_RTL4_A = DSA_TAG_PROTO_RTL4_A_VALUE, DSA_TAG_PROTO_HELLCREEK = DSA_TAG_PROTO_HELLCREEK_VALUE, + DSA_TAG_PROTO_XRS700X = DSA_TAG_PROTO_XRS700X_VALUE, }; struct packet_type; diff --git a/net/dsa/Kconfig b/net/dsa/Kconfig index dfecd7b22fd7..2d226a5c085f 100644 --- a/net/dsa/Kconfig +++ b/net/dsa/Kconfig @@ -139,4 +139,10 @@ config NET_DSA_TAG_TRAILER Say Y or M if you want to enable support for tagging frames at with a trailed. e.g. Marvell 88E6060. +config NET_DSA_TAG_XRS700X + tristate "Tag driver for XRS700x switches" + help + Say Y or M if you want to enable support for tagging frames for + Arrow SpeedChips XRS700x switches that use a single byte tag trailer. + endif diff --git a/net/dsa/Makefile b/net/dsa/Makefile index 0fb2b75a7ae3..92cea2132241 100644 --- a/net/dsa/Makefile +++ b/net/dsa/Makefile @@ -18,3 +18,4 @@ obj-$(CONFIG_NET_DSA_TAG_OCELOT) += tag_ocelot.o obj-$(CONFIG_NET_DSA_TAG_QCA) += tag_qca.o obj-$(CONFIG_NET_DSA_TAG_SJA1105) += tag_sja1105.o obj-$(CONFIG_NET_DSA_TAG_TRAILER) += tag_trailer.o +obj-$(CONFIG_NET_DSA_TAG_XRS700X) += tag_xrs700x.o diff --git a/net/dsa/tag_xrs700x.c b/net/dsa/tag_xrs700x.c new file mode 100644 index 000000000000..4ee7c260a8a9 --- /dev/null +++ b/net/dsa/tag_xrs700x.c @@ -0,0 +1,67 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * XRS700x tag format handling + * Copyright (c) 2008-2009 Marvell Semiconductor + * Copyright (c) 2020 NovaTech LLC + */ + +#include +#include +#include +#include + +#include "dsa_priv.h" + +static struct sk_buff *xrs700x_xmit(struct sk_buff *skb, struct net_device *dev) +{ + struct dsa_port *dp = dsa_slave_to_port(dev); + u8 *trailer; + + trailer = skb_put(skb, 1); + trailer[0] = BIT(dp->index); + + return skb; +} + +static struct sk_buff *xrs700x_rcv(struct sk_buff *skb, struct net_device *dev, + struct packet_type *pt) +{ + int source_port; + u8 *trailer; + + if (skb_linearize(skb)) + return NULL; + + trailer = skb_tail_pointer(skb) - 1; + + source_port = ffs((int)trailer[0]) - 1; + + if (source_port < 0) + return NULL; + + skb->dev = dsa_master_find_slave(dev, 0, source_port); + if (!skb->dev) + return NULL; + + if (pskb_trim_rcsum(skb, skb->len - 1)) + return NULL; + + /* Frame is forwarded by hardware, don't forward in software. */ + skb->offload_fwd_mark = 1; + + return skb; +} + +static const struct dsa_device_ops xrs700x_netdev_ops = { + .name = "xrs700x", + .proto = DSA_TAG_PROTO_XRS700X, + .xmit = xrs700x_xmit, + .rcv = xrs700x_rcv, + .overhead = 1, + .tail_tag = true, +}; + +MODULE_LICENSE("GPL"); +MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_XRS700X); + +module_dsa_tag_driver(xrs700x_netdev_ops); 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Mon, 07 Dec 2020 14:04:50 -0800 (PST) From: George McCollister To: Andrew Lunn , Vivien Didelot , Florian Fainelli , Vladimir Oltean Cc: "David S . Miller " , netdev@vger.kernel.org, devicetree@vger.kernel.org, George McCollister Subject: [PATCH net-next v3 3/3] dt-bindings: net: dsa: add bindings for xrs700x switches Date: Mon, 7 Dec 2020 16:03:55 -0600 Message-Id: <20201207220355.8707-4-george.mccollister@gmail.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20201207220355.8707-1-george.mccollister@gmail.com> References: <20201207220355.8707-1-george.mccollister@gmail.com> Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Add documentation and an example for Arrow SpeedChips XRS7000 Series single chip Ethernet switches. Signed-off-by: George McCollister Reviewed-by: Florian Fainelli --- .../devicetree/bindings/net/dsa/arrow,xrs700x.yaml | 74 ++++++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/dsa/arrow,xrs700x.yaml diff --git a/Documentation/devicetree/bindings/net/dsa/arrow,xrs700x.yaml b/Documentation/devicetree/bindings/net/dsa/arrow,xrs700x.yaml new file mode 100644 index 000000000000..05ed36ce02ec --- /dev/null +++ b/Documentation/devicetree/bindings/net/dsa/arrow,xrs700x.yaml @@ -0,0 +1,74 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/dsa/arrow,xrs700x.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Arrow SpeedChips XRS7000 Series Switch Device Tree Bindings + +allOf: + - $ref: dsa.yaml# + +maintainers: + - George McCollister + +description: + The Arrow SpeedChips XRS7000 Series of single chip gigabit Ethernet switches + are designed for critical networking applications. They have up to three + RGMII ports and one RMII port and are managed via i2c or mdio. + +properties: + compatible: + oneOf: + - enum: + - arrow,xrs7003e + - arrow,xrs7003f + - arrow,xrs7004e + - arrow,xrs7004f + + reg: + maxItems: 1 + +required: + - compatible + - reg + +unevaluatedProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + switch@8 { + compatible = "arrow,xrs7004e"; + reg = <0x8>; + + status = "okay"; + ports { + #address-cells = <1>; + #size-cells = <0>; + port@1 { + reg = <1>; + label = "lan0"; + phy-handle = <&swphy0>; + phy-mode = "rgmii-id"; + }; + port@2 { + reg = <2>; + label = "lan1"; + phy-handle = <&swphy1>; + phy-mode = "rgmii-id"; + }; + port@3 { + reg = <3>; + label = "cpu"; + ethernet = <&fec1>; + fixed-link { + speed = <1000>; + full-duplex; + }; + }; + }; + }; + };