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GET /api/patches/116321/?format=api
{ "id": 116321, "url": "https://patches.dpdk.org/api/patches/116321/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/patch/20220914134950.3675770-1-mpiszczek@ddn.com/", "project": { "id": 1, "url": "https://patches.dpdk.org/api/projects/1/?format=api", "name": "DPDK", "link_name": "dpdk", "list_id": "dev.dpdk.org", "list_email": "dev@dpdk.org", "web_url": "http://core.dpdk.org", "scm_url": "git://dpdk.org/dpdk", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<20220914134950.3675770-1-mpiszczek@ddn.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20220914134950.3675770-1-mpiszczek@ddn.com", "date": "2022-09-14T13:49:50", "name": "[v2] pci: read amd iommu virtual address width", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "f8f30c966caec2b5854e45bca2a4fc2aa1c476de", "submitter": { "id": 2840, "url": "https://patches.dpdk.org/api/people/2840/?format=api", "name": "Michael Piszczek", "email": "mpiszczek@ddn.com" }, "delegate": { "id": 1, "url": "https://patches.dpdk.org/api/users/1/?format=api", "username": "tmonjalo", "first_name": "Thomas", "last_name": "Monjalon", "email": "thomas@monjalon.net" }, "mbox": "https://patches.dpdk.org/project/dpdk/patch/20220914134950.3675770-1-mpiszczek@ddn.com/mbox/", "series": [ { "id": 24670, "url": "https://patches.dpdk.org/api/series/24670/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/list/?series=24670", "date": "2022-09-14T13:49:50", "name": "[v2] pci: read amd iommu virtual address width", "version": 2, "mbox": "https://patches.dpdk.org/series/24670/mbox/" } ], "comments": "https://patches.dpdk.org/api/patches/116321/comments/", "check": "fail", "checks": "https://patches.dpdk.org/api/patches/116321/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@inbox.dpdk.org", "Delivered-To": "patchwork@inbox.dpdk.org", "Received": [ "from mails.dpdk.org (mails.dpdk.org [217.70.189.124])\n\tby inbox.dpdk.org (Postfix) with ESMTP id 54AA8A00C5;\n\tThu, 15 Sep 2022 08:40:11 +0200 (CEST)", "from [217.70.189.124] (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id F3E744021D;\n\tThu, 15 Sep 2022 08:40:10 +0200 (CEST)", "from NAM11-BN8-obe.outbound.protection.outlook.com\n (mail-bn8nam11on2041.outbound.protection.outlook.com [40.107.236.41])\n by mails.dpdk.org (Postfix) with ESMTP id D05FB40156\n for <dev@dpdk.org>; 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pr=C", "From": "Michael Piszczek <mpiszczek@ddn.com>", "To": "dev@dpdk.org", "Cc": "Michael Piszczek <mpiszczek@ddn.com>", "Subject": "[PATCH v2] pci: read amd iommu virtual address width", "Date": "Wed, 14 Sep 2022 15:49:50 +0200", "Message-Id": "<20220914134950.3675770-1-mpiszczek@ddn.com>", "X-Mailer": "git-send-email 2.34.1", "In-Reply-To": "<20220912160157.3642968-2-mpiszczek@ddn.com>", "References": "<20220912160157.3642968-2-mpiszczek@ddn.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-EOPAttributedMessage": "0", "X-MS-PublicTrafficType": "Email", "X-MS-TrafficTypeDiagnostic": "DM6NAM04FT062:EE_|SJ0PR19MB4400:EE_", "Content-Type": "text/plain", "X-MS-Office365-Filtering-Correlation-Id": "3d147f45-d389-4b04-70d1-08da9658008d", "X-MS-Exchange-SenderADCheck": "1", "X-MS-Exchange-AntiSpam-Relay": "0", "X-Microsoft-Antispam": "BCL:0;", "X-Microsoft-Antispam-Message-Info": "\n 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", "X-Forefront-Antispam-Report": "CIP:50.222.100.11; CTRY:US; LANG:en; SCL:1; SRV:;\n IPV:NLI; SFV:NSPM; H:uww-mx01.datadirectnet.com; PTR:InfoDomainNonexistent;\n CAT:NONE;\n SFS:(13230022)(4636009)(396003)(39850400004)(346002)(376002)(136003)(451199015)(46966006)(36840700001)(82310400005)(6916009)(2906002)(4326008)(40480700001)(316002)(2616005)(8676002)(41300700001)(86362001)(70586007)(26005)(70206006)(186003)(6666004)(8936002)(83380400001)(478600001)(36756003)(5660300002)(82740400003)(36860700001)(356005)(336012)(47076005)(6266002)(1076003)(81166007)(36900700001);\n DIR:OUT; SFP:1101;", "X-OriginatorOrg": "ddn.com", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "14 Sep 2022 13:49:53.6123 (UTC)", "X-MS-Exchange-CrossTenant-Network-Message-Id": "\n 3d147f45-d389-4b04-70d1-08da9658008d", "X-MS-Exchange-CrossTenant-Id": "753b6e26-6fd3-43e6-8248-3f1735d59bb4", "X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp": "\n TenantId=753b6e26-6fd3-43e6-8248-3f1735d59bb4; Ip=[50.222.100.11];\n Helo=[uww-mx01.datadirectnet.com]", "X-MS-Exchange-CrossTenant-AuthSource": "\n DM6NAM04FT062.eop-NAM04.prod.protection.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Anonymous", "X-MS-Exchange-CrossTenant-FromEntityHeader": "HybridOnPrem", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "SJ0PR19MB4400", "X-Mailman-Approved-At": "Thu, 15 Sep 2022 08:40:09 +0200", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n <mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://mails.dpdk.org/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<https://mails.dpdk.org/listinfo/dev>,\n <mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org" }, "content": "Add code to read the virtual address width for AMD processors.\n\nSigned-off-by: Michael Piszczek <mpiszczek@ddn.com>\n---\n drivers/bus/pci/linux/pci.c | 43 +++++++++++++++++++++++++++++++++++++\n 1 file changed, 43 insertions(+)", "diff": "diff --git a/drivers/bus/pci/linux/pci.c b/drivers/bus/pci/linux/pci.c\nindex e521459870..0c6d79ca74 100644\n--- a/drivers/bus/pci/linux/pci.c\n+++ b/drivers/bus/pci/linux/pci.c\n@@ -4,6 +4,7 @@\n \n #include <string.h>\n #include <dirent.h>\n+#include <sys/stat.h>\n \n #include <rte_log.h>\n #include <rte_bus.h>\n@@ -492,6 +493,38 @@ rte_pci_scan(void)\n }\n \n #if defined(RTE_ARCH_X86)\n+\n+static uint64_t\n+pci_device_amd_iommu_support_va(const struct rte_pci_addr *addr)\n+{\n+#define RD_AMD_CAP_VASIZE_SHIFT 15\n+#define RD_AMD_CAP_VASIZE_MASK (0x7F << RD_AMD_CAP_VASIZE_SHIFT)\n+\n+\tchar filename[PATH_MAX];\n+\tFILE *fp;\n+\tuint64_t amd_cap_reg = 0;\n+\n+\tsnprintf(filename, sizeof(filename),\n+\t\t\"%s/\" PCI_PRI_FMT \"/iommu/amd-iommu/cap\",\n+\t\trte_pci_get_sysfs_path(), addr->domain, addr->bus, addr->devid,\n+\t\taddr->function);\n+\n+\tfp = fopen(filename, \"r\");\n+\tif (fp == NULL)\n+\t\treturn 0;\n+\n+\t/* We have an Amd IOMMU */\n+\tif (fscanf(fp, \"%\" PRIx64, &amd_cap_reg) != 1) {\n+\t\tRTE_LOG(ERR, EAL, \"%s(): can't read %s\\n\", __func__, filename);\n+\t\tfclose(fp);\n+\t\treturn 0;\n+\t}\n+\n+\tfclose(fp);\n+\n+\treturn ((amd_cap_reg & RD_AMD_CAP_VASIZE_MASK) >> RD_AMD_CAP_VASIZE_SHIFT) + 1;\n+}\n+\n bool\n pci_device_iommu_support_va(const struct rte_pci_device *dev)\n {\n@@ -501,6 +534,16 @@ pci_device_iommu_support_va(const struct rte_pci_device *dev)\n \tchar filename[PATH_MAX];\n \tFILE *fp;\n \tuint64_t mgaw, vtd_cap_reg = 0;\n+\tstruct stat s;\n+\n+\tif (stat(\"/sys/class/iommu/ivhd2/amd-iommu\", &s) == 0) {\n+\t\tmgaw = pci_device_amd_iommu_support_va(addr);\n+\t\tif (mgaw > 0) {\n+\t\t\trte_mem_set_dma_mask(mgaw);\n+\t\t\treturn true;\n+\t\t}\n+\t\treturn false;\n+\t}\n \n \tsnprintf(filename, sizeof(filename),\n \t\t \"%s/\" PCI_PRI_FMT \"/iommu/intel-iommu/cap\",\n", "prefixes": [ "v2" ] }