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GET /api/patches/21188/?format=api
{ "id": 21188, "url": "http://patches.dpdk.org/api/patches/21188/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/patch/1488545223-25739-10-git-send-email-hemant.agrawal@nxp.com/", "project": { "id": 1, "url": "http://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": "<1488545223-25739-10-git-send-email-hemant.agrawal@nxp.com>", "list_archive_url": "https://inbox.dpdk.org/dev/1488545223-25739-10-git-send-email-hemant.agrawal@nxp.com", "date": "2017-03-03T12:46:26", "name": "[dpdk-dev,PATCHv8,09/46] bus/fslmc: add vfio support", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "29c085db8be00cc8787523f61b38d9a8fe634165", "submitter": { "id": 477, "url": "http://patches.dpdk.org/api/people/477/?format=api", "name": "Hemant Agrawal", "email": "hemant.agrawal@nxp.com" }, "delegate": { "id": 319, "url": "http://patches.dpdk.org/api/users/319/?format=api", "username": "fyigit", "first_name": "Ferruh", "last_name": "Yigit", "email": "ferruh.yigit@amd.com" }, "mbox": "http://patches.dpdk.org/project/dpdk/patch/1488545223-25739-10-git-send-email-hemant.agrawal@nxp.com/mbox/", "series": [], "comments": "http://patches.dpdk.org/api/patches/21188/comments/", "check": "warning", "checks": "http://patches.dpdk.org/api/patches/21188/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@dpdk.org", "Delivered-To": "patchwork@dpdk.org", "Received": [ "from [92.243.14.124] (localhost [IPv6:::1])\n\tby dpdk.org (Postfix) with ESMTP id 40FF8F963;\n\tFri, 3 Mar 2017 08:14:15 +0100 (CET)", "from NAM01-SN1-obe.outbound.protection.outlook.com\n\t(mail-sn1nam01on0077.outbound.protection.outlook.com [104.47.32.77])\n\tby dpdk.org (Postfix) with ESMTP id C649969C3\n\tfor <dev@dpdk.org>; Fri, 3 Mar 2017 08:13:42 +0100 (CET)", "from CY1PR03CA0012.namprd03.prod.outlook.com (10.174.128.22) by\n\tBY2PR03MB1941.namprd03.prod.outlook.com (10.164.114.33) with\n\tMicrosoft SMTP Server (version=TLS1_2,\n\tcipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384) id\n\t15.1.888.16; Fri, 3 Mar 2017 07:13:38 +0000", "from BN1BFFO11FD019.protection.gbl (2a01:111:f400:7c10::1:127) by\n\tCY1PR03CA0012.outlook.office365.com (2603:10b6:600::22) with\n\tMicrosoft SMTP Server (version=TLS1_2,\n\tcipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384) id\n\t15.1.947.12 via Frontend Transport; Fri, 3 Mar 2017 07:13:37 +0000", "from tx30smr01.am.freescale.net (192.88.168.50) by\n\tBN1BFFO11FD019.mail.protection.outlook.com (10.58.144.82) with\n\tMicrosoft SMTP Server (version=TLS1_0,\n\tcipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.1.933.11\n\tvia Frontend Transport; Fri, 3 Mar 2017 07:13:37 +0000", "from bf-netperf1.idc ([10.232.134.28])\n\tby tx30smr01.am.freescale.net (8.14.3/8.14.0) with ESMTP id\n\tv237D50C005035; Fri, 3 Mar 2017 00:13:34 -0700" ], "Authentication-Results": "spf=fail (sender IP is 192.88.168.50)\n\tsmtp.mailfrom=nxp.com; caviumnetworks.com;\n\tdkim=none (message not signed)\n\theader.d=none; caviumnetworks.com;\n\tdmarc=fail action=none header.from=nxp.com; ", "Received-SPF": "Fail (protection.outlook.com: domain of nxp.com does not\n\tdesignate 192.88.168.50 as permitted sender)\n\treceiver=protection.outlook.com; \n\tclient-ip=192.88.168.50; helo=tx30smr01.am.freescale.net;", "From": "Hemant Agrawal <hemant.agrawal@nxp.com>", "To": "<dev@dpdk.org>", "CC": "<thomas.monjalon@6wind.com>, <bruce.richardson@intel.com>,\n\t<shreyansh.jain@nxp.com>, <john.mcnamara@intel.com>,\n\t<ferruh.yigit@intel.com>, <jerin.jacob@caviumnetworks.com>", "Date": "Fri, 3 Mar 2017 18:16:26 +0530", "Message-ID": "<1488545223-25739-10-git-send-email-hemant.agrawal@nxp.com>", "X-Mailer": "git-send-email 1.9.1", "In-Reply-To": "<1488545223-25739-1-git-send-email-hemant.agrawal@nxp.com>", "References": "<1487205586-6785-1-git-send-email-hemant.agrawal@nxp.com>\n\t<1488545223-25739-1-git-send-email-hemant.agrawal@nxp.com>", "X-EOPAttributedMessage": "0", "X-Matching-Connectors": "131329988181309888;\n\t(91ab9b29-cfa4-454e-5278-08d120cd25b8); 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BCL:0; PCL:0; RULEID:(22001);\n\tSRVR:BY2PR03MB1941; ", "X-Microsoft-Antispam-PRVS": "<BY2PR03MB194161E9EFB5C398E73DEDD1892B0@BY2PR03MB1941.namprd03.prod.outlook.com>", "X-Exchange-Antispam-Report-Test": "UriScan:(185117386973197)(275809806118684)(21532816269658); ", "X-Exchange-Antispam-Report-CFA-Test": "BCL:0; PCL:0;\n\tRULEID:(6095060)(601004)(2401047)(13023025)(13018025)(8121501046)(13015025)(13024025)(13017025)(5005006)(3002001)(10201501046)(6055026)(6096035)(20161123559025)(20161123556025)(20161123561025)(20161123563025)(20161123565025);\n\tSRVR:BY2PR03MB1941; BCL:0; PCL:0; RULEID:(400006); SRVR:BY2PR03MB1941;", "X-Forefront-PRVS": "0235CBE7D0", "SpamDiagnosticOutput": "1:99", "SpamDiagnosticMetadata": "NSPM", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "03 Mar 2017 07:13:37.9281\n\t(UTC)", "X-MS-Exchange-CrossTenant-Id": "5afe0b00-7697-4969-b663-5eab37d5f47e", "X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp": "TenantId=5afe0b00-7697-4969-b663-5eab37d5f47e;\n\tIp=[192.88.168.50]; \n\tHelo=[tx30smr01.am.freescale.net]", "X-MS-Exchange-CrossTenant-FromEntityHeader": "HybridOnPrem", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "BY2PR03MB1941", "Subject": "[dpdk-dev] [PATCHv8 09/46] bus/fslmc: add vfio support", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.15", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<http://dpdk.org/ml/options/dev>,\n\t<mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://dpdk.org/ml/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<http://dpdk.org/ml/listinfo/dev>,\n\t<mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "Add support for using VFIO for dpaa2 based fsl-mc bus.\n\nThere are some differences in the way vfio used for fsl-mc bus\nfrom the eal vfio.\n - The scanning of bus for individual objects on the basis of\n the DPRC container.\n - The use and mapping of MC portal for object access\n\nWith the evolution of bus model, they canbe further aligned with\neal vfio code.\n\nSigned-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>\n---\n drivers/bus/fslmc/Makefile | 1 +\n drivers/bus/fslmc/fslmc_bus.c | 10 +\n drivers/bus/fslmc/fslmc_vfio.c | 450 ++++++++++++++++++++++++++++\n drivers/bus/fslmc/fslmc_vfio.h | 74 +++++\n drivers/bus/fslmc/rte_bus_fslmc_version.map | 1 +\n 5 files changed, 536 insertions(+)\n create mode 100644 drivers/bus/fslmc/fslmc_vfio.c\n create mode 100644 drivers/bus/fslmc/fslmc_vfio.h", "diff": "diff --git a/drivers/bus/fslmc/Makefile b/drivers/bus/fslmc/Makefile\nindex d30cea9..90edaad 100644\n--- a/drivers/bus/fslmc/Makefile\n+++ b/drivers/bus/fslmc/Makefile\n@@ -68,6 +68,7 @@ SRCS-$(CONFIG_RTE_LIBRTE_FSLMC_BUS) += \\\n mc/dpio.c \\\n mc/mc_sys.c\n \n+SRCS-$(CONFIG_RTE_LIBRTE_FSLMC_BUS) += fslmc_vfio.c\n SRCS-$(CONFIG_RTE_LIBRTE_FSLMC_BUS) += fslmc_bus.c\n \n # library dependencies\ndiff --git a/drivers/bus/fslmc/fslmc_bus.c b/drivers/bus/fslmc/fslmc_bus.c\nindex 8a4f519..ee794e7 100644\n--- a/drivers/bus/fslmc/fslmc_bus.c\n+++ b/drivers/bus/fslmc/fslmc_bus.c\n@@ -42,6 +42,7 @@\n #include <rte_ethdev.h>\n \n #include \"rte_fslmc.h\"\n+#include \"fslmc_vfio.h\"\n \n #define FSLMC_BUS_LOG(level, fmt, args...) \\\n \tRTE_LOG(level, EAL, \"%s(): \" fmt \"\\n\", __func__, ##args)\n@@ -51,6 +52,15 @@\n static int\n rte_fslmc_scan(void)\n {\n+\tif (fslmc_vfio_setup_group()) {\n+\t\tFSLMC_BUS_LOG(ERR, \"fslmc: Unable to setup VFIO\");\n+\t\treturn -1;\n+\t}\n+\tif (fslmc_vfio_process_group()) {\n+\t\tFSLMC_BUS_LOG(ERR, \"fslmc: Unable to setup devices\");\n+\t\treturn -1;\n+\t}\n+\tRTE_LOG(INFO, EAL, \"fslmc: Bus scan completed\\n\");\n \treturn 0;\n }\n \ndiff --git a/drivers/bus/fslmc/fslmc_vfio.c b/drivers/bus/fslmc/fslmc_vfio.c\nnew file mode 100644\nindex 0000000..73db595\n--- /dev/null\n+++ b/drivers/bus/fslmc/fslmc_vfio.c\n@@ -0,0 +1,450 @@\n+/*-\n+ * BSD LICENSE\n+ *\n+ * Copyright (c) 2015-2016 Freescale Semiconductor, Inc. All rights reserved.\n+ * Copyright (c) 2016 NXP. All rights reserved.\n+ *\n+ * Redistribution and use in source and binary forms, with or without\n+ * modification, are permitted provided that the following conditions\n+ * are met:\n+ *\n+ * * Redistributions of source code must retain the above copyright\n+ * notice, this list of conditions and the following disclaimer.\n+ * * Redistributions in binary form must reproduce the above copyright\n+ * notice, this list of conditions and the following disclaimer in\n+ * the documentation and/or other materials provided with the\n+ * distribution.\n+ * * Neither the name of Freescale Semiconductor, Inc nor the names of its\n+ * contributors may be used to endorse or promote products derived\n+ * from this software without specific prior written permission.\n+ *\n+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n+ * \"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n+ */\n+\n+#include <unistd.h>\n+#include <stdio.h>\n+#include <sys/types.h>\n+#include <string.h>\n+#include <stdlib.h>\n+#include <fcntl.h>\n+#include <errno.h>\n+#include <sys/ioctl.h>\n+#include <sys/stat.h>\n+#include <sys/types.h>\n+#include <sys/mman.h>\n+#include <sys/vfs.h>\n+#include <libgen.h>\n+#include <dirent.h>\n+#include <sys/eventfd.h>\n+\n+#include <rte_mbuf.h>\n+#include <rte_ethdev.h>\n+#include <rte_malloc.h>\n+#include <rte_memcpy.h>\n+#include <rte_string_fns.h>\n+#include <rte_cycles.h>\n+#include <rte_kvargs.h>\n+#include <rte_dev.h>\n+#include <rte_ethdev.h>\n+#include <rte_bus.h>\n+\n+#include \"rte_fslmc.h\"\n+#include \"fslmc_vfio.h\"\n+\n+#define VFIO_MAX_CONTAINERS\t1\n+\n+#define FSLMC_VFIO_LOG(level, fmt, args...) \\\n+\tRTE_LOG(level, EAL, \"%s(): \" fmt \"\\n\", __func__, ##args)\n+\n+/** Pathname of FSL-MC devices directory. */\n+#define SYSFS_FSL_MC_DEVICES \"/sys/bus/fsl-mc/devices\"\n+\n+/* Number of VFIO containers & groups with in */\n+static struct fslmc_vfio_group vfio_groups[VFIO_MAX_GRP];\n+static struct fslmc_vfio_container vfio_containers[VFIO_MAX_CONTAINERS];\n+static int container_device_fd;\n+void *(*rte_mcp_ptr_list);\n+static uint32_t mcp_id;\n+\n+static int vfio_connect_container(struct fslmc_vfio_group *vfio_group)\n+{\n+\tstruct fslmc_vfio_container *container;\n+\tint i, fd, ret;\n+\n+\t/* Try connecting to vfio container if already created */\n+\tfor (i = 0; i < VFIO_MAX_CONTAINERS; i++) {\n+\t\tcontainer = &vfio_containers[i];\n+\t\tif (!ioctl(vfio_group->fd, VFIO_GROUP_SET_CONTAINER,\n+\t\t\t &container->fd)) {\n+\t\t\tFSLMC_VFIO_LOG(INFO, \"Container pre-exists with\"\n+\t\t\t\t \" FD[0x%x] for this group\",\n+\t\t\t\t container->fd);\n+\t\t\tvfio_group->container = container;\n+\t\t\treturn 0;\n+\t\t}\n+\t}\n+\n+\t/* Opens main vfio file descriptor which represents the \"container\" */\n+\tfd = vfio_get_container_fd();\n+\tif (fd < 0) {\n+\t\tFSLMC_VFIO_LOG(ERR, \"Failed to open VFIO container\");\n+\t\treturn -errno;\n+\t}\n+\n+\t/* Check whether support for SMMU type IOMMU present or not */\n+\tif (ioctl(fd, VFIO_CHECK_EXTENSION, VFIO_TYPE1_IOMMU)) {\n+\t\t/* Connect group to container */\n+\t\tret = ioctl(vfio_group->fd, VFIO_GROUP_SET_CONTAINER, &fd);\n+\t\tif (ret) {\n+\t\t\tFSLMC_VFIO_LOG(ERR, \"Failed to setup group container\");\n+\t\t\tclose(fd);\n+\t\t\treturn -errno;\n+\t\t}\n+\n+\t\tret = ioctl(fd, VFIO_SET_IOMMU, VFIO_TYPE1_IOMMU);\n+\t\tif (ret) {\n+\t\t\tFSLMC_VFIO_LOG(ERR, \"Failed to setup VFIO iommu\");\n+\t\t\tclose(fd);\n+\t\t\treturn -errno;\n+\t\t}\n+\t} else {\n+\t\tFSLMC_VFIO_LOG(ERR, \"No supported IOMMU available\");\n+\t\tclose(fd);\n+\t\treturn -EINVAL;\n+\t}\n+\n+\tcontainer = NULL;\n+\tfor (i = 0; i < VFIO_MAX_CONTAINERS; i++) {\n+\t\tif (vfio_containers[i].used)\n+\t\t\tcontinue;\n+\t\tFSLMC_VFIO_LOG(DEBUG, \"Unused container at index %d\", i);\n+\t\tcontainer = &vfio_containers[i];\n+\t}\n+\tif (!container) {\n+\t\tFSLMC_VFIO_LOG(ERR, \"No free container found\");\n+\t\tclose(fd);\n+\t\treturn -ENOMEM;\n+\t}\n+\n+\tcontainer->used = 1;\n+\tcontainer->fd = fd;\n+\tcontainer->group_list[container->index] = vfio_group;\n+\tvfio_group->container = container;\n+\tcontainer->index++;\n+\treturn 0;\n+}\n+\n+int vfio_dmamap_mem_region(uint64_t vaddr,\n+\t\t\t uint64_t iova,\n+\t\t\t uint64_t size)\n+{\n+\tstruct fslmc_vfio_group *group;\n+\tstruct vfio_iommu_type1_dma_map dma_map = {\n+\t\t.argsz = sizeof(dma_map),\n+\t\t.flags = VFIO_DMA_MAP_FLAG_READ | VFIO_DMA_MAP_FLAG_WRITE,\n+\t};\n+\n+\tdma_map.vaddr = vaddr;\n+\tdma_map.size = size;\n+\tdma_map.iova = iova;\n+\n+\t/* SET DMA MAP for IOMMU */\n+\tgroup = &vfio_groups[0];\n+\tif (ioctl(group->container->fd, VFIO_IOMMU_MAP_DMA, &dma_map)) {\n+\t\tFSLMC_VFIO_LOG(ERR, \"VFIO_IOMMU_MAP_DMA (errno = %d)\", errno);\n+\t\treturn -1;\n+\t}\n+\treturn 0;\n+}\n+\n+static int64_t vfio_map_mcp_obj(struct fslmc_vfio_group *group, char *mcp_obj)\n+{\n+\tint64_t v_addr = (int64_t)MAP_FAILED;\n+\tint32_t ret, mc_fd;\n+\n+\tstruct vfio_device_info d_info = { .argsz = sizeof(d_info) };\n+\tstruct vfio_region_info reg_info = { .argsz = sizeof(reg_info) };\n+\n+\t/* getting the mcp object's fd*/\n+\tmc_fd = ioctl(group->fd, VFIO_GROUP_GET_DEVICE_FD, mcp_obj);\n+\tif (mc_fd < 0) {\n+\t\tFSLMC_VFIO_LOG(ERR, \"error in VFIO get device %s fd from group\"\n+\t\t\t \" %d\", mcp_obj, group->fd);\n+\t\treturn v_addr;\n+\t}\n+\n+\t/* getting device info*/\n+\tret = ioctl(mc_fd, VFIO_DEVICE_GET_INFO, &d_info);\n+\tif (ret < 0) {\n+\t\tFSLMC_VFIO_LOG(ERR, \"error in VFIO getting DEVICE_INFO\");\n+\t\tgoto MC_FAILURE;\n+\t}\n+\n+\t/* getting device region info*/\n+\tret = ioctl(mc_fd, VFIO_DEVICE_GET_REGION_INFO, ®_info);\n+\tif (ret < 0) {\n+\t\tFSLMC_VFIO_LOG(ERR, \"error in VFIO getting REGION_INFO\");\n+\t\tgoto MC_FAILURE;\n+\t}\n+\n+\tFSLMC_VFIO_LOG(DEBUG, \"region offset = %llx , region size = %llx\",\n+\t\t reg_info.offset, reg_info.size);\n+\n+\tv_addr = (uint64_t)mmap(NULL, reg_info.size,\n+\t\tPROT_WRITE | PROT_READ, MAP_SHARED,\n+\t\tmc_fd, reg_info.offset);\n+\n+MC_FAILURE:\n+\tclose(mc_fd);\n+\n+\treturn v_addr;\n+}\n+\n+/* Following function shall fetch total available list of MC devices\n+ * from VFIO container & populate private list of devices and other\n+ * data structures\n+ */\n+int fslmc_vfio_process_group(void)\n+{\n+\tstruct fslmc_vfio_device *vdev;\n+\tstruct vfio_device_info device_info = { .argsz = sizeof(device_info) };\n+\tchar *temp_obj, *object_type __rte_unused, *mcp_obj, *dev_name;\n+\tint32_t object_id, i, dev_fd;\n+\tDIR *d;\n+\tstruct dirent *dir;\n+\tchar path[PATH_MAX];\n+\tint64_t v_addr;\n+\tint ndev_count;\n+\tstruct fslmc_vfio_group *group = &vfio_groups[0];\n+\tstatic int process_once;\n+\n+\t/* if already done once */\n+\tif (process_once) {\n+\t\tFSLMC_VFIO_LOG(DEBUG, \"Already scanned once - re-scan \"\n+\t\t\t \"not supported\");\n+\t\treturn 0;\n+\t}\n+\tprocess_once = 0;\n+\n+\tsprintf(path, \"/sys/kernel/iommu_groups/%d/devices\", group->groupid);\n+\n+\td = opendir(path);\n+\tif (!d) {\n+\t\tFSLMC_VFIO_LOG(ERR, \"Unable to open directory %s\", path);\n+\t\treturn -1;\n+\t}\n+\n+\t/*Counting the number of devices in a group and getting the mcp ID*/\n+\tndev_count = 0;\n+\tmcp_obj = NULL;\n+\twhile ((dir = readdir(d)) != NULL) {\n+\t\tif (dir->d_type == DT_LNK) {\n+\t\t\tndev_count++;\n+\t\t\tif (!strncmp(\"dpmcp\", dir->d_name, 5)) {\n+\t\t\t\tif (mcp_obj)\n+\t\t\t\t\tfree(mcp_obj);\n+\t\t\t\tmcp_obj = malloc(sizeof(dir->d_name));\n+\t\t\t\tif (!mcp_obj) {\n+\t\t\t\t\tFSLMC_VFIO_LOG(ERR, \"mcp obj:Unable to\"\n+\t\t\t\t\t\t \" allocate memory\");\n+\t\t\t\t\treturn -ENOMEM;\n+\t\t\t\t}\n+\t\t\t\tstrcpy(mcp_obj, dir->d_name);\n+\t\t\t\ttemp_obj = strtok(dir->d_name, \".\");\n+\t\t\t\ttemp_obj = strtok(NULL, \".\");\n+\t\t\t\tsscanf(temp_obj, \"%d\", &mcp_id);\n+\t\t\t}\n+\t\t}\n+\t}\n+\tclosedir(d);\n+\n+\tif (!mcp_obj) {\n+\t\tFSLMC_VFIO_LOG(ERR, \"DPAA2 MCP Object not Found\");\n+\t\treturn -ENODEV;\n+\t}\n+\tRTE_LOG(INFO, EAL, \"fslmc: DPRC contains = %d devices\\n\", ndev_count);\n+\n+\t/* Allocate the memory depends upon number of objects in a group*/\n+\tgroup->vfio_device = (struct fslmc_vfio_device *)malloc(ndev_count *\n+\t\t\t sizeof(struct fslmc_vfio_device));\n+\tif (!(group->vfio_device)) {\n+\t\tFSLMC_VFIO_LOG(ERR, \"vfio device: Unable to allocate memory\\n\");\n+\t\tfree(mcp_obj);\n+\t\treturn -ENOMEM;\n+\t}\n+\n+\t/* Allocate memory for MC Portal list */\n+\trte_mcp_ptr_list = malloc(sizeof(void *) * 1);\n+\tif (!rte_mcp_ptr_list) {\n+\t\tFSLMC_VFIO_LOG(ERR, \"portal list: Unable to allocate memory!\");\n+\t\tfree(mcp_obj);\n+\t\tgoto FAILURE;\n+\t}\n+\n+\tv_addr = vfio_map_mcp_obj(group, mcp_obj);\n+\tfree(mcp_obj);\n+\tif (v_addr == (int64_t)MAP_FAILED) {\n+\t\tFSLMC_VFIO_LOG(ERR, \"Error mapping region (errno = %d)\", errno);\n+\t\tgoto FAILURE;\n+\t}\n+\n+\tFSLMC_VFIO_LOG(DEBUG, \"DPAA2 MC has VIR_ADD = %ld\", v_addr);\n+\n+\trte_mcp_ptr_list[0] = (void *)v_addr;\n+\n+\td = opendir(path);\n+\tif (!d) {\n+\t\tFSLMC_VFIO_LOG(ERR, \"Unable to open %s Directory\", path);\n+\t\tgoto FAILURE;\n+\t}\n+\n+\ti = 0;\n+\tFSLMC_VFIO_LOG(DEBUG, \"DPAA2 - Parsing devices:\");\n+\t/* Parsing each object and initiating them*/\n+\twhile ((dir = readdir(d)) != NULL) {\n+\t\tif (dir->d_type != DT_LNK)\n+\t\t\tcontinue;\n+\t\tif (!strncmp(\"dprc\", dir->d_name, 4) ||\n+\t\t !strncmp(\"dpmcp\", dir->d_name, 5))\n+\t\t\tcontinue;\n+\t\tdev_name = malloc(sizeof(dir->d_name));\n+\t\tif (!dev_name) {\n+\t\t\tFSLMC_VFIO_LOG(ERR, \"name: Unable to allocate memory\");\n+\t\t\tgoto FAILURE;\n+\t\t}\n+\t\tstrcpy(dev_name, dir->d_name);\n+\t\tobject_type = strtok(dir->d_name, \".\");\n+\t\ttemp_obj = strtok(NULL, \".\");\n+\t\tsscanf(temp_obj, \"%d\", &object_id);\n+\t\tFSLMC_VFIO_LOG(DEBUG, \" - %s \", dev_name);\n+\n+\t\t/* getting the device fd*/\n+\t\tdev_fd = ioctl(group->fd, VFIO_GROUP_GET_DEVICE_FD, dev_name);\n+\t\tif (dev_fd < 0) {\n+\t\t\tFSLMC_VFIO_LOG(ERR, \"VFIO_GROUP_GET_DEVICE_FD error\"\n+\t\t\t\t \" Device fd: %s, Group: %d\",\n+\t\t\t\t dev_name, group->fd);\n+\t\t\tfree(dev_name);\n+\t\t\tgoto FAILURE;\n+\t\t}\n+\n+\t\tfree(dev_name);\n+\t\tvdev = &group->vfio_device[group->object_index++];\n+\t\tvdev->fd = dev_fd;\n+\t\tvdev->index = i;\n+\t\ti++;\n+\t\t/* Get Device inofrmation */\n+\t\tif (ioctl(vdev->fd, VFIO_DEVICE_GET_INFO, &device_info)) {\n+\t\t\tFSLMC_VFIO_LOG(ERR, \"DPAA2 VFIO_DEVICE_GET_INFO fail\");\n+\t\t\tgoto FAILURE;\n+\t\t}\n+\t}\n+\tclosedir(d);\n+\n+\treturn 0;\n+\n+FAILURE:\n+\tfree(group->vfio_device);\n+\tgroup->vfio_device = NULL;\n+\treturn -1;\n+}\n+\n+int fslmc_vfio_setup_group(void)\n+{\n+\tstruct fslmc_vfio_group *group = NULL;\n+\tint groupid;\n+\tint ret, i;\n+\tchar *container;\n+\tstruct vfio_group_status status = { .argsz = sizeof(status) };\n+\n+\t/* if already done once */\n+\tif (container_device_fd)\n+\t\treturn 0;\n+\n+\tcontainer = getenv(\"DPRC\");\n+\n+\tif (container == NULL) {\n+\t\tFSLMC_VFIO_LOG(ERR, \"VFIO container not set in env DPRC\");\n+\t\treturn -1;\n+\t}\n+\t/* get group number */\n+\tret = vfio_get_group_no(SYSFS_FSL_MC_DEVICES, container, &groupid);\n+\tif (ret == 0) {\n+\t\tRTE_LOG(WARNING, EAL, \"%s not managed by VFIO, skipping\\n\",\n+\t\t\tcontainer);\n+\t\treturn 1;\n+\t}\n+\n+\t/* if negative, something failed */\n+\tif (ret < 0)\n+\t\treturn -1;\n+\n+\tFSLMC_VFIO_LOG(DEBUG, \"VFIO iommu group id = %d\", groupid);\n+\n+\t/* Check if group already exists */\n+\tfor (i = 0; i < VFIO_MAX_GRP; i++) {\n+\t\tgroup = &vfio_groups[i];\n+\t\tif (group->groupid == groupid) {\n+\t\t\tFSLMC_VFIO_LOG(ERR, \"groupid already exists %d\",\n+\t\t\t\t groupid);\n+\t\t\treturn 0;\n+\t\t}\n+\t}\n+\n+\t/* get the actual group fd */\n+\tgroup->fd = vfio_get_group_fd(groupid);\n+\tif (group->fd < 0)\n+\t\treturn -1;\n+\n+\t/*\n+\t * at this point, we know that this group is viable (meaning,\n+\t * all devices are either bound to VFIO or not bound to anything)\n+\t */\n+\n+\tif (ioctl(group->fd, VFIO_GROUP_GET_STATUS, &status)) {\n+\t\tFSLMC_VFIO_LOG(ERR, \" VFIO error getting group status\");\n+\t\tclose(group->fd);\n+\t\treturn -1;\n+\t}\n+\tif (!(status.flags & VFIO_GROUP_FLAGS_VIABLE)) {\n+\t\tFSLMC_VFIO_LOG(ERR, \"VFIO group not viable\");\n+\t\tclose(group->fd);\n+\t\treturn -1;\n+\t}\n+\t/* Since Group is VIABLE, Store the groupid */\n+\tgroup->groupid = groupid;\n+\n+\t/* check if group does not have a container yet */\n+\tif (!(status.flags & VFIO_GROUP_FLAGS_CONTAINER_SET)) {\n+\t\t/* Now connect this IOMMU group to given container */\n+\t\tif (vfio_connect_container(group)) {\n+\t\t\tFSLMC_VFIO_LOG(ERR, \"VFIO error connecting container\"\n+\t\t\t\t \" with groupid %d\", groupid);\n+\t\t\tclose(group->fd);\n+\t\t\treturn -1;\n+\t\t}\n+\t}\n+\n+\t/* Get Device information */\n+\tret = ioctl(group->fd, VFIO_GROUP_GET_DEVICE_FD, container);\n+\tif (ret < 0) {\n+\t\tFSLMC_VFIO_LOG(ERR, \"VFIO error getting device %s fd from\"\n+\t\t\t \" group %d\", container, group->groupid);\n+\t\treturn ret;\n+\t}\n+\tcontainer_device_fd = ret;\n+\tFSLMC_VFIO_LOG(DEBUG, \"VFIO Container FD is [0x%X]\",\n+\t\t container_device_fd);\n+\n+\treturn 0;\n+}\ndiff --git a/drivers/bus/fslmc/fslmc_vfio.h b/drivers/bus/fslmc/fslmc_vfio.h\nnew file mode 100644\nindex 0000000..5e58211\n--- /dev/null\n+++ b/drivers/bus/fslmc/fslmc_vfio.h\n@@ -0,0 +1,74 @@\n+/*-\n+ * BSD LICENSE\n+ *\n+ * Copyright (c) 2015-2016 Freescale Semiconductor, Inc. All rights reserved.\n+ * Copyright (c) 2016 NXP. All rights reserved.\n+ *\n+ * Redistribution and use in source and binary forms, with or without\n+ * modification, are permitted provided that the following conditions\n+ * are met:\n+ *\n+ * * Redistributions of source code must retain the above copyright\n+ * notice, this list of conditions and the following disclaimer.\n+ * * Redistributions in binary form must reproduce the above copyright\n+ * notice, this list of conditions and the following disclaimer in\n+ * the documentation and/or other materials provided with the\n+ * distribution.\n+ * * Neither the name of Freescale Semiconductor, Inc nor the names of its\n+ * contributors may be used to endorse or promote products derived\n+ * from this software without specific prior written permission.\n+ *\n+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n+ * \"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n+ */\n+\n+#ifndef _FSLMC_VFIO_H_\n+#define _FSLMC_VFIO_H_\n+\n+#include \"eal_vfio.h\"\n+\n+#define DPAA2_VENDOR_ID\t\t0x1957\n+#define DPAA2_MC_DPNI_DEVID\t7\n+#define DPAA2_MC_DPSECI_DEVID\t3\n+\n+#define VFIO_MAX_GRP 1\n+\n+typedef struct fslmc_vfio_device {\n+\tint fd; /* fslmc root container device ?? */\n+\tint index; /*index of child object */\n+\tstruct fslmc_vfio_device *child; /* Child object */\n+} fslmc_vfio_device;\n+\n+typedef struct fslmc_vfio_group {\n+\tint fd; /* /dev/vfio/\"groupid\" */\n+\tint groupid;\n+\tstruct fslmc_vfio_container *container;\n+\tint object_index;\n+\tstruct fslmc_vfio_device *vfio_device;\n+} fslmc_vfio_group;\n+\n+typedef struct fslmc_vfio_container {\n+\tint fd; /* /dev/vfio/vfio */\n+\tint used;\n+\tint index; /* index in group list */\n+\tstruct fslmc_vfio_group *group_list[VFIO_MAX_GRP];\n+} fslmc_vfio_container;\n+\n+int vfio_dmamap_mem_region(\n+\tuint64_t vaddr,\n+\tuint64_t iova,\n+\tuint64_t size);\n+\n+int fslmc_vfio_setup_group(void);\n+int fslmc_vfio_process_group(void);\n+\n+#endif /* _FSLMC_VFIO_H_ */\ndiff --git a/drivers/bus/fslmc/rte_bus_fslmc_version.map b/drivers/bus/fslmc/rte_bus_fslmc_version.map\nindex b6979e8..463c658 100644\n--- a/drivers/bus/fslmc/rte_bus_fslmc_version.map\n+++ b/drivers/bus/fslmc/rte_bus_fslmc_version.map\n@@ -35,6 +35,7 @@ DPDK_17.05 {\n \tqbman_swp_send_multiple;\n \trte_fslmc_driver_register;\n \trte_fslmc_driver_unregister;\n+\trte_mcp_ptr_list;\n \n \tlocal: *;\n };\n", "prefixes": [ "dpdk-dev", "PATCHv8", "09/46" ] }