From patchwork Mon Apr 14 15:13:26 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Lucero Palau, Alejandro" X-Patchwork-Id: 14050584 X-Patchwork-Delegate: kuba@kernel.org Received: from NAM04-BN8-obe.outbound.protection.outlook.com (mail-bn8nam04on2071.outbound.protection.outlook.com [40.107.100.71]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 606BF27466F; Mon, 14 Apr 2025 15:14:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.100.71 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744643651; cv=fail; b=a/DPvB59jdQ7hA0RbtuWwMjSSjoIj7K2wz9Md1yBHmNvVDI2ew4+sWcMt97fmdx0RMQLRIxZL81X1iTr5c9ZyKdh7jINEoVhMk5oXEtqRPM9Ke6KGPFdFdL2RISobQgaFhFpUAY7l7x9VXjI4zLZHt69OGD6xj5U+aCcEdz2GF8= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744643651; c=relaxed/simple; bh=0RLeB8txp29ExDSUfJXVm1TrZtoZfGuiLII3YBybtsc=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=EzSkdAH8x4vePP5hb0lHvS3LzTAaUNY9sPPduye64CngkBXamLnnRvaTNH3zL9RTbv7O6wyaZ3JDFgMREKFHPX+N8BXfObMUE+8tZPKU4SA96FpI7mLv91QAhTdtOI/qT9gFTl7MbsIE6PirXOPd99vNhbXB0AfOrVlbl7iKn84= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com; spf=fail smtp.mailfrom=amd.com; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b=cXCW26DQ; arc=fail smtp.client-ip=40.107.100.71 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=amd.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b="cXCW26DQ" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=ZpEwB4CT8L3IiF5R9qMZ2INIZniKRjfSlJ2RyXqdkWK8813Q3rugMwABFayyFgr4rSyqj2YoJpIQuMVHbixRUJDx5uA4qqSe8GPLfMUOt/e7XYUi39AxFV7rc0c+oda6tnnyYnq/Gpkwt8VvqjH5nZhaiKsOhlE6uf86bopO3U4xHU0GqT1xqEIzWXbv2HKPF5mLD8hbd5GqWf2wgH/XjWgGZr+NIQBlELc+2DBLW5JV8c0lTK/bf+T/te+7I97LbD6/dXxU+z9JG6EfWM86sHsvE8EY87ueDkGnKjHmyMfDnM9FCgDNwYndbj17/BByfym/+dRKIfSIGVbTNZMDmQ== 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=OxnVywWscdfKWL0sL9OUxCQAn128j9rorybp7Ui8PnI=; b=x5qe2offDDLjucbmXwtoak5EiLdkJCfySG6Wk/NAUZbCYj2zGPVXCXxM5FO6ICdp8WBCNdWyKyHMrsE+/SO1Q4Xz4/knsu7Hijc/ZViwVXfClUj/W1c5fnRvojGkVJU9H2N12Hnt9gYTwB/P3rBxjr1nO5obOOThtwXEoT7pyEUWA/oISsBTu1mE8Ih1oZ+y6QT9dndoq+ioo6swF/ibA9dw4XOs5DUChKpPIV+ec3vHnYwVeOGY4vjM/Gu/QX7ySI8dsPqttsdur892Zz46kMyfcgnqX6rwvo4m3NfntpED+bBJAODNGEq6AmMnf/SNBjScVFw0uEV1RsdcW5cOvw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=vger.kernel.org smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=OxnVywWscdfKWL0sL9OUxCQAn128j9rorybp7Ui8PnI=; b=cXCW26DQKwdf3psMvGhqLCPFPjhqg66E1aKIfh7+s4ZcG/FNViVfd9bpOZXAwLHbP6iVF61LHEhldN11tNfnDqwF9CkAV3RmyMuF21/eyvjv0Ievdkfv+IHj3DoS4qh7JaXQaynZ7T9q8MbV1jaea4cGmdQTA8m9rtJHWC5Xszw= Received: from BN9PR03CA0969.namprd03.prod.outlook.com (2603:10b6:408:109::14) by DS0PR12MB9274.namprd12.prod.outlook.com (2603:10b6:8:1a9::6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8632.29; Mon, 14 Apr 2025 15:14:05 +0000 Received: from BL02EPF0001A104.namprd05.prod.outlook.com (2603:10b6:408:109:cafe::88) by BN9PR03CA0969.outlook.office365.com (2603:10b6:408:109::14) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.20.8632.33 via Frontend Transport; Mon, 14 Apr 2025 15:14:04 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB03.amd.com; pr=C Received: from SATLEXMB03.amd.com (165.204.84.17) by BL02EPF0001A104.mail.protection.outlook.com (10.167.241.135) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.8655.12 via Frontend Transport; Mon, 14 Apr 2025 15:14:04 +0000 Received: from SATLEXMB06.amd.com (10.181.40.147) by SATLEXMB03.amd.com (10.181.40.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Mon, 14 Apr 2025 10:14:04 -0500 Received: from SATLEXMB03.amd.com (10.181.40.144) by SATLEXMB06.amd.com (10.181.40.147) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Mon, 14 Apr 2025 10:14:04 -0500 Received: from xcbalucerop40x.xilinx.com (10.180.168.240) by SATLEXMB03.amd.com (10.181.40.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39 via Frontend Transport; Mon, 14 Apr 2025 10:14:02 -0500 From: To: , , , , , , , , CC: Alejandro Lucero , Martin Habets , Edward Cree , "Jonathan Cameron" Subject: [PATCH v13 12/22] sfc: obtain root decoder with enough HPA free space Date: Mon, 14 Apr 2025 16:13:26 +0100 Message-ID: <20250414151336.3852990-13-alejandro.lucero-palau@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250414151336.3852990-1-alejandro.lucero-palau@amd.com> References: <20250414151336.3852990-1-alejandro.lucero-palau@amd.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL02EPF0001A104:EE_|DS0PR12MB9274:EE_ X-MS-Office365-Filtering-Correlation-Id: e8705850-7154-4ce7-c557-08dd7b66fec5 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|82310400026|376014|36860700013|7416014; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB03.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(1800799024)(82310400026)(376014)(36860700013)(7416014);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Apr 2025 15:14:04.7264 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: e8705850-7154-4ce7-c557-08dd7b66fec5 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB03.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BL02EPF0001A104.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB9274 X-Patchwork-Delegate: kuba@kernel.org From: Alejandro Lucero Asking for available HPA space is the previous step to try to obtain an HPA range suitable to accel driver purposes. Add this call to efx cxl initialization. Make sfc cxl build dependent on CXL region. Signed-off-by: Alejandro Lucero Reviewed-by: Martin Habets Acked-by: Edward Cree Reviewed-by: Jonathan Cameron --- drivers/net/ethernet/sfc/Kconfig | 1 + drivers/net/ethernet/sfc/efx_cxl.c | 19 +++++++++++++++++++ 2 files changed, 20 insertions(+) diff --git a/drivers/net/ethernet/sfc/Kconfig b/drivers/net/ethernet/sfc/Kconfig index 979f2801e2a8..e959d9b4f4ce 100644 --- a/drivers/net/ethernet/sfc/Kconfig +++ b/drivers/net/ethernet/sfc/Kconfig @@ -69,6 +69,7 @@ config SFC_MCDI_LOGGING config SFC_CXL bool "Solarflare SFC9100-family CXL support" depends on SFC && CXL_BUS >= SFC + depends on CXL_REGION default SFC help This enables SFC CXL support if the kernel is configuring CXL for diff --git a/drivers/net/ethernet/sfc/efx_cxl.c b/drivers/net/ethernet/sfc/efx_cxl.c index 82400dd7e678..7236d255e36e 100644 --- a/drivers/net/ethernet/sfc/efx_cxl.c +++ b/drivers/net/ethernet/sfc/efx_cxl.c @@ -26,6 +26,7 @@ int efx_cxl_init(struct efx_probe_data *probe_data) .size = EFX_CTPIO_BUFFER_SIZE }; DECLARE_BITMAP(found, CXL_MAX_CAPS); + resource_size_t max_size; struct efx_cxl *cxl; u16 dvsec; int rc; @@ -86,6 +87,22 @@ int efx_cxl_init(struct efx_probe_data *probe_data) return PTR_ERR(cxl->cxlmd); } + cxl->cxlrd = cxl_get_hpa_freespace(cxl->cxlmd, 1, + CXL_DECODER_F_RAM | CXL_DECODER_F_TYPE2, + &max_size); + + if (IS_ERR(cxl->cxlrd)) { + pci_err(pci_dev, "cxl_get_hpa_freespace failed\n"); + return PTR_ERR(cxl->cxlrd); + } + + if (max_size < EFX_CTPIO_BUFFER_SIZE) { + pci_err(pci_dev, "%s: not enough free HPA space %pap < %u\n", + __func__, &max_size, EFX_CTPIO_BUFFER_SIZE); + cxl_put_root_decoder(cxl->cxlrd); + return -ENOSPC; + } + probe_data->cxl = cxl; return 0; @@ -93,6 +110,8 @@ int efx_cxl_init(struct efx_probe_data *probe_data) void efx_cxl_exit(struct efx_probe_data *probe_data) { + if (probe_data->cxl) + cxl_put_root_decoder(probe_data->cxl->cxlrd); } MODULE_IMPORT_NS("CXL");