From patchwork Sat Jun 26 20:18:04 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Horatiu Vultur X-Patchwork-Id: 467950 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=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham 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 11F1DC49EA6 for ; Sat, 26 Jun 2021 20:18:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D35EC61A2D for ; Sat, 26 Jun 2021 20:18:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230359AbhFZUUa (ORCPT ); Sat, 26 Jun 2021 16:20:30 -0400 Received: from esa.microchip.iphmx.com ([68.232.153.233]:47369 "EHLO esa.microchip.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230107AbhFZUU3 (ORCPT ); Sat, 26 Jun 2021 16:20:29 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1624738688; x=1656274688; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=Vj06UnUe+oVLWflWqrlGCKDMOgEci9fLJMM5g30tqRE=; b=sb2nlx9+zTH4mOjIPgo1acbnIkCj80jqq6MxcNpXg1GsTtQ7qdhIshN3 6w9hWIPDDZk0p7+tCTQGUITZbU2iJ5b0Gpc73l+1GWAGkVxc8dkqA//hP BZtt58bFfyQ2lKBWiasZ907FbZWlYYas1IsA1LatvPlElB2ifrjtqRwpF mAb3SBZQCzfB8znpyOPEZj5C5bbkX+UZN2rxh9oNec1NgY/gdv9Yf5nrc nL8gyM6litaHLjri3+t0Vool06K3j4gp7Io8B4kvyAL38lBIeWKoBr6Lp rPIj4SJIyhKsJyzKro6wghbJY3E/xIK+ZnXV73KoCzHXq35cyNveRIYXN w==; IronPort-SDR: ztSG1olJ2Bds/m8/Gi1TACcSWf+gP6A2orPaDBuiIYeKTvm4L353Pf+vrzsJZ7F4DWQFsWX7FA 80boQk1bZ4oMETSrbt6xjvtChVuEAAdx333bkLfiH1+E2RkiLLMQvSVh+Xzb/8XBKgOASK3lde yZL7RbAkyCTOKl43GncNKSeAW24vTKF5sWkiwSmbQ5e0JLkzSxw6t6DUNmpGibWWzJ+FraNG6i x0646KabKvTH0+YbIQpo4xXJst9VJJ8A6MLVMr0tkWwAB5Su0e43mHQaZamxNy1Bv8xkr4Rw+f mRs= X-IronPort-AV: E=Sophos;i="5.83,302,1616482800"; d="scan'208";a="126184537" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa5.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 26 Jun 2021 13:18:08 -0700 Received: from chn-vm-ex01.mchp-main.com (10.10.85.143) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Sat, 26 Jun 2021 13:18:06 -0700 Received: from soft-dev3-1.microsemi.net (10.10.115.15) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server id 15.1.2176.2 via Frontend Transport; Sat, 26 Jun 2021 13:18:05 -0700 From: Horatiu Vultur To: , , , , , CC: Horatiu Vultur Subject: [PATCH net-next] net: bridge: mrp: Update the Test frames for MRA Date: Sat, 26 Jun 2021 22:18:04 +0200 Message-ID: <20210626201804.1737815-1-horatiu.vultur@microchip.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org According to the standard IEC 62439-2, in case the node behaves as MRA and needs to send Test frames on ring ports, then these Test frames need to have an Option TLV and a Sub-Option TLV which has the type AUTO_MGR. Signed-off-by: Horatiu Vultur --- net/bridge/br_mrp.c | 27 +++++++++++++++++++++++++++ net/bridge/br_private_mrp.h | 11 +++++++++++ 2 files changed, 38 insertions(+) diff --git a/net/bridge/br_mrp.c b/net/bridge/br_mrp.c index f7012b7d7ce4..fd2de35ffb3c 100644 --- a/net/bridge/br_mrp.c +++ b/net/bridge/br_mrp.c @@ -204,6 +204,33 @@ static struct sk_buff *br_mrp_alloc_test_skb(struct br_mrp *mrp, hdr->timestamp = cpu_to_be32(jiffies_to_msecs(jiffies)); br_mrp_skb_common(skb, mrp); + + /* In case the node behaves as MRA then the Test frame needs to have + * an Option TLV which includes eventually a sub-option TLV that has + * the type AUTO_MGR + */ + if (mrp->ring_role == BR_MRP_RING_ROLE_MRA) { + struct br_mrp_sub_option1_hdr *sub_opt = NULL; + struct br_mrp_tlv_hdr *sub_tlv = NULL; + struct br_mrp_oui_hdr *oui = NULL; + u8 length; + + length = sizeof(*sub_opt) + sizeof(*sub_tlv) + sizeof(oui) + + MRP_OPT_PADDING; + br_mrp_skb_tlv(skb, BR_MRP_TLV_HEADER_OPTION, length); + + oui = skb_put(skb, sizeof(*oui)); + memset(oui, 0x0, sizeof(*oui)); + sub_opt = skb_put(skb, sizeof(*sub_opt)); + memset(sub_opt, 0x0, sizeof(*sub_opt)); + + sub_tlv = skb_put(skb, sizeof(*sub_tlv)); + sub_tlv->type = BR_MRP_SUB_TLV_HEADER_TEST_AUTO_MGR; + + /* 32 bit alligment shall be ensured therefore add 2 bytes */ + skb_put(skb, MRP_OPT_PADDING); + } + br_mrp_skb_tlv(skb, BR_MRP_TLV_HEADER_END, 0x0); return skb; diff --git a/net/bridge/br_private_mrp.h b/net/bridge/br_private_mrp.h index 9559aa2750fb..bda8e1896712 100644 --- a/net/bridge/br_private_mrp.h +++ b/net/bridge/br_private_mrp.h @@ -6,6 +6,8 @@ #include "br_private.h" #include +#define MRP_OPT_PADDING 0x2 + struct br_mrp { /* list of mrp instances */ struct hlist_node list; @@ -134,4 +136,13 @@ struct br_mrp_in_test_hdr { __be32 timestamp; } __attribute__((__packed__)); +struct br_mrp_oui_hdr { + __u8 oui[MRP_OUI_LENGTH]; +}; + +struct br_mrp_sub_option1_hdr { + __u8 type; + __u8 data[MRP_MANUFACTURE_DATA_LENGTH]; +}; + #endif /* _BR_PRIVATE_MRP_H */