From patchwork Thu Sep 15 09:57:56 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Machon X-Patchwork-Id: 12977154 X-Patchwork-Delegate: kuba@kernel.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5D98EC6FA8E for ; Thu, 15 Sep 2022 09:52:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229604AbiIOJwG (ORCPT ); Thu, 15 Sep 2022 05:52:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57510 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230218AbiIOJv3 (ORCPT ); Thu, 15 Sep 2022 05:51:29 -0400 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.153.233]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1C3B89C211 for ; Thu, 15 Sep 2022 02:49:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1663235361; x=1694771361; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=kRMULuNzI37CVUCuzeL3U6IBLgBdiMPBcpKk4yGKDho=; b=ZLvWd+xC1SrNUDCWWqnmnuY7IPzpM1j20e4N9Uj42nJ50GKZunIW4Sa3 kVwC3N54BlH+HVvUhw9w/D0iv2MMf09cuY5DaC2PZAFLW3msFJvzMY+5e 3qfN0PFSuVMiHkGZHxg4UDOQpzPZ6XKludMGuj3oDUprPYLmzScuO9hlO INza/axSdSOeu5x97zz9ivl85JfE2tEaq4n5Sb8fjOfL1QvuZUvKkXzKP 6jTyWElL9SoiLD4Dg932rDEEvAjaIp1S5Pe8rK6xx9P8DdakO++5N1xA/ xxQ44dBP6Zi5UB/nwuUPG88dtQ/NSVHZsqU5GskpTajUUk/RM0EAWWkjA g==; X-IronPort-AV: E=Sophos;i="5.93,317,1654585200"; d="scan'208";a="190948619" Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa1.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 15 Sep 2022 02:48:58 -0700 Received: from chn-vm-ex03.mchp-main.com (10.10.85.151) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.12; Thu, 15 Sep 2022 02:48:58 -0700 Received: from DEN-LT-70577.microchip.com (10.10.115.15) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server id 15.1.2507.12 via Frontend Transport; Thu, 15 Sep 2022 02:48:56 -0700 From: Daniel Machon To: CC: , , , , , , , , Daniel Machon Subject: [RFC PATCH v2 net-next 1/2] net: dcb: add new pcp selector to app object Date: Thu, 15 Sep 2022 11:57:56 +0200 Message-ID: <20220915095757.2861822-2-daniel.machon@microchip.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220915095757.2861822-1-daniel.machon@microchip.com> References: <20220915095757.2861822-1-daniel.machon@microchip.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org X-Patchwork-State: RFC Add new PCP selector for the 8021Qaz APP managed object. The purpose of adding the PCP selector, is to be able to offload PCP-based queue classification to the 8021Q Priority Code Point table, see 6.9.3 of IEEE Std 802.1Q-2018. PCP and DEI is encoded in the protocol field as 8*dei+pcp, so that a mapping of PCP 2 and DEI 1 to priority 3 is encoded as {255, 10, 3}. While PCP is not a standard 8021Qaz selector, it seems very convenient to add it to the APP object, as this is where similar priority mapping is handled, and it perfectly fits the {selector, protocol, priority} triplet. Signed-off-by: Daniel Machon --- include/uapi/linux/dcbnl.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/uapi/linux/dcbnl.h b/include/uapi/linux/dcbnl.h index a791a94013a6..8eab16e5bc13 100644 --- a/include/uapi/linux/dcbnl.h +++ b/include/uapi/linux/dcbnl.h @@ -217,6 +217,7 @@ struct cee_pfc { #define IEEE_8021QAZ_APP_SEL_DGRAM 3 #define IEEE_8021QAZ_APP_SEL_ANY 4 #define IEEE_8021QAZ_APP_SEL_DSCP 5 +#define IEEE_8021QAZ_APP_SEL_PCP 255 /* This structure contains the IEEE 802.1Qaz APP managed object. This * object is also used for the CEE std as well.