From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7B45AC43458 for ; Fri, 3 Jul 2026 09:09:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=GdTduK+BUUMmR4UzGUt6ddw/QG8rjl1gF3wS5QRwQwM=; b=DAb0er33JRb7qk z4zE6kutKtaLFDl6W3ZCLcMnbRvC9ucQYf1eaxqU0zz3p8+OS+1gCScYTznor7zEMMB1c4qs7HZbY UxnugSlss30GaVA6NEZA9MjHWQKWQL9MQT87TppG/YFR5L7Tj/Ujov1l1rHbytGR2jO1NuXGxK3zn WGdII8QHfSfdedZ670UHVOFpQHxgOxIe9nDstiINDV3ilB45rCu+Hawju5QdWrAJZte9g0yh/LxV5 N18do7/+p7/TZf757jgq0dUiQrd8xoDq20V5g7MzRgDaZYH60zH9uHxCJte0W+/sdikDWJnfzZ6eE R40XJZJNGDxAnHNHM1dQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wfZto-00000006Rdg-0ii8; Fri, 03 Jul 2026 09:09:28 +0000 Received: from mail-eastus2azon11010007.outbound.protection.outlook.com ([52.101.56.7] helo=BN1PR04CU002.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wfZtm-00000006Rd9-08dU for linux-i3c@lists.infradead.org; Fri, 03 Jul 2026 09:09:27 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=cZVNPM7HZO54B0Z03IewH9h/w1b7NP9MupMX21MdDYWb/F3lY92uNdwf3dq4JFs1Z5FshsbtpvMKK0dCUFIwi4nBVbVH8RRW5J/3tbKLnpC+ncm4WvBOlNfH8M8lBfSFHXECybWYFx9iiuAdqHZtgqQ8XdgQpZll7/zOoa6BS94uULr+aB+jBeISPSk+ER6BY96HMA/XuQa7yGSLFXXGSmSQ8kUbm6AZo4hAm2O/15n+BFoKQ7AbHp3sUrx/+YOEwtcF+qiVHJqSn7hve9hL295DWSTiO/VvfwknGoJ0gHflejDNSen8uMYy7kc3LpRCYTYeU+GH5vUk3V51izKOnA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=8Exft41be9H3fTpkjBZf1GxTMCejqeC8UyAjMIlOUC0=; b=w5/NuPM82PvUH+vlwSA4nmgQyFQdbBlaKsnH6vZn1bnpQcSZEFGA7FP5qKLbJdaA8ItAl7OQi8vZnPqdQY2X6qL3l0F9jyTFatMs0di/64tSaziRXyYhjAhbT2qny4AneOpstbw0YZtzE7iuPkTfBDcjKfn1MENVGlAqtedgvPNAm0NTs2n4WTV/YXA8Tlm0tYwWIaxGssBjuYarB+CLBxu2veeQL4PJeoaKaXI7DtIwzX19Typdyll6ln/E0S3CNEpfYTFxYtMgnJ+pXeWbsiER6R23lbLy1bdwSfCXacKdZ06djCjskN4ohnk275tm3TfQw46hBRFYnfuXMr4MTQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 216.228.117.161) smtp.rcpttodomain=oss.nxp.com smtp.mailfrom=nvidia.com; dmarc=pass (p=reject sp=reject pct=100) action=none header.from=nvidia.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=8Exft41be9H3fTpkjBZf1GxTMCejqeC8UyAjMIlOUC0=; b=dEPt/RPtixmBB6QhsxYM11iIhL6jgM0HM28tbO5zOrqWJTgny3ByxJHOMwKKr2omuDMbYryElspt19sKfu5D1R+YeSD56ABoiYQRKR8bfrtqdBxh3k90VX7Adlx3IjxhbbzNbuSiWY/g7fI7vobFN1rvLO8u0+Eqaqqpqh2fqKhm0s25BgAebD8dTNi5cfIGijM+3CyP8iKirHIM+8btQwE9fmWg6TRCYRrXRVjYip1H5AKR+VYsg9an3y1cPcjlU806OPNWAedtRjrMg3Z+UjQT4wUGdrLkbBNMTZUWi10wEkS8EYjcbwHq1KLKMBW/JE0dwCHna2XUYcamZNKuYw== Received: from CH0PR03CA0010.namprd03.prod.outlook.com (2603:10b6:610:b0::15) by DS0PR12MB6605.namprd12.prod.outlook.com (2603:10b6:8:d3::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.181.9; Fri, 3 Jul 2026 09:09:16 +0000 Received: from CH2PEPF00000140.namprd02.prod.outlook.com (2603:10b6:610:b0:cafe::6b) by CH0PR03CA0010.outlook.office365.com (2603:10b6:610:b0::15) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.21.181.9 via Frontend Transport; Fri, 3 Jul 2026 09:09:15 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 216.228.117.161) smtp.mailfrom=nvidia.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=nvidia.com; Received-SPF: Pass (protection.outlook.com: domain of nvidia.com designates 216.228.117.161 as permitted sender) receiver=protection.outlook.com; client-ip=216.228.117.161; helo=mail.nvidia.com; pr=C Received: from mail.nvidia.com (216.228.117.161) by CH2PEPF00000140.mail.protection.outlook.com (10.167.244.72) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.181.6 via Frontend Transport; Fri, 3 Jul 2026 09:09:15 +0000 Received: from rnnvmail204.nvidia.com (10.129.68.6) by mail.nvidia.com (10.129.200.67) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.20; Fri, 3 Jul 2026 02:09:00 -0700 Received: from rnnvmail202.nvidia.com (10.129.68.7) by rnnvmail204.nvidia.com (10.129.68.6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.20; Fri, 3 Jul 2026 02:08:59 -0700 Received: from build-akhilrajeev-noble-20260602.internal (10.127.8.11) by mail.nvidia.com (10.129.68.7) with Microsoft SMTP Server id 15.2.2562.20 via Frontend Transport; Fri, 3 Jul 2026 02:08:56 -0700 From: Akhil R To: CC: , , , , , , , Subject: Re: [PATCH v5 04/12] i3c: master: Add support for devices using SETAASA Date: Fri, 3 Jul 2026 09:08:55 +0000 Message-ID: <20260703090855.1519255-1-akhilrajeev@nvidia.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: References: MIME-Version: 1.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH2PEPF00000140:EE_|DS0PR12MB6605:EE_ X-MS-Office365-Filtering-Correlation-Id: 3a89b163-bfe8-46fc-4e87-08ded8e2c1c2 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|23010399003|82310400026|376014|1800799024|36860700016|6133799003|11063799006|56012099006|22082099003|18002099003|3023799007; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.161;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge2.nvidia.com;CAT:NONE;SFS:(13230040)(23010399003)(82310400026)(376014)(1800799024)(36860700016)(6133799003)(11063799006)(56012099006)(22082099003)(18002099003)(3023799007);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: pV6QeB8jYIlSxAQhp8aHz0JEANKV8T71eg0kKiA6DW4X+FM5SUO+PskUoRV+8/q99AocWTQ/m12HY3/wj+vTFx9X8WpPnkW6pSZsa2VDYF1n6DLJuDWnfnhYc4w7Q0s5poxF6M2eOvmLQZVlgwtleZxvGSOGBO7CfQF0MN4NhZayBUEai7xRPXpIsj5mzj5dI+bXBUiO+Uph9YCwilzOtUvwdjgchD4JD2eSfTLw9YvEmcDKqHwqm6E4qMeyKJLZoNFOXcuAcK+nyL4zJbVqcoWHom5+gN1WozkzeCVquhbnmatuyQXbw1hjnH77QC5KfxGpTqB1ZUn8RQTd58vV8ubO5ECs4X/h98dKRGCf3hF0AgYkSik5rotqaW+jeFYmAoH4Cph5g28LCs1Qp26g8O8ObwZigigGQR5MNYKmH4X1WV29e0mtkFYFDk7HzSKg X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 03 Jul 2026 09:09:15.6461 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 3a89b163-bfe8-46fc-4e87-08ded8e2c1c2 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CH2PEPF00000140.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB6605 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260703_020926_080388_C2F567B5 X-CRM114-Status: GOOD ( 14.85 ) X-BeenThere: linux-i3c@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-i3c" Errors-To: linux-i3c-bounces+linux-i3c=archiver.kernel.org@lists.infradead.org On Thu, 25 Jun 2026 07:42:03 -0500 Frank Li wrote: > On Thu, Jun 25, 2026 at 09:38:15AM +0000, Akhil R wrote: >> On Wed, 24 Jun 2026 13:57:46 -0400, Frank Li wrote: >> ... >> ... >> >> [Severity: High] >> >> Is it possible that sending the SETAASA broadcast before direct SETDASA >> >> assignments breaks initialization for devices that natively support SETAASA >> >> but are configured for SETDASA? >> >> >> >> According to the I3C specification, any device on the bus natively supporting >> >> SETAASA will respond to this broadcast by adopting its static address as its >> >> dynamic address. >> >> >> >> After this broadcast, the driver iterates through devices and attempts to >> >> assign custom dynamic addresses via direct SETDASA commands: >> >> >> >> drivers/i3c/master.c:i3c_master_early_i3c_dev_add() { >> >> ... >> >> ret = i3c_master_setdasa_locked(master, i3cdev->info.static_addr, >> >> i3cdev->boardinfo->init_dyn_addr); >> >> ... >> >> } >> >> >> >> Since the target device already adopted its dynamic address during the >> >> SETAASA broadcast, it is no longer in the unassigned state and will NACK >> >> the subsequent SETDASA command. >> > >> > Look like correct, but I am not sure if target will NACK SETDASA. Or should >> > use SETNEWDA for SETAASA method. >> >> Yes, this looks valid for mixed device buses. I can move >> i3c_master_setaasa_locked() after the SETDASA handling and before >> i3c_master_do_daa() in the same function, so SETDASA-assigned devices will >> ignore the later SETAASA broadcast. Does that sound good to you? > > yes, try it to follow spec. I just noticed that the specification says: if both bits 0 and 1 are set, meaning both SETDASA and SETAASA are supported, the I3C Bus Controller should use SETDASA first. So moving i3c_master_setaasa_locked() after SETDASA handling follows the spec. I will wait a few more days before sending v6, to see if there are any other concerns. Best Regards, Akhil -- linux-i3c mailing list linux-i3c@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-i3c