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GET /api/patches/133463/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 133463,
    "url": "http://patches.dpdk.org/api/patches/133463/?format=api",
    "web_url": "http://patches.dpdk.org/project/dpdk/patch/20231027030001.602639-21-chaoyong.he@corigine.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": "<20231027030001.602639-21-chaoyong.he@corigine.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/20231027030001.602639-21-chaoyong.he@corigine.com",
    "date": "2023-10-27T02:59:57",
    "name": "[v4,20/24] vdpa/nfp: add remap PCI memory",
    "commit_ref": null,
    "pull_url": null,
    "state": "accepted",
    "archived": true,
    "hash": "e4ee2560947237ed6e0615893657b4f5ff6bf52f",
    "submitter": {
        "id": 2554,
        "url": "http://patches.dpdk.org/api/people/2554/?format=api",
        "name": "Chaoyong He",
        "email": "chaoyong.he@corigine.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/20231027030001.602639-21-chaoyong.he@corigine.com/mbox/",
    "series": [
        {
            "id": 30016,
            "url": "http://patches.dpdk.org/api/series/30016/?format=api",
            "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=30016",
            "date": "2023-10-27T02:59:37",
            "name": "add the NFP vDPA PMD",
            "version": 4,
            "mbox": "http://patches.dpdk.org/series/30016/mbox/"
        }
    ],
    "comments": "http://patches.dpdk.org/api/patches/133463/comments/",
    "check": "success",
    "checks": "http://patches.dpdk.org/api/patches/133463/checks/",
    "tags": {},
    "related": [],
    "headers": {
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        "From": "Chaoyong He <chaoyong.he@corigine.com>",
        "To": "dev@dpdk.org",
        "Cc": "oss-drivers@corigine.com, Chaoyong He <chaoyong.he@corigine.com>,\n Shujing Dong <shujing.dong@corigine.com>, Long Wu <long.wu@corigine.com>,\n Peng Zhang <peng.zhang@corigine.com>",
        "Subject": "[PATCH v4 20/24] vdpa/nfp: add remap PCI memory",
        "Date": "Fri, 27 Oct 2023 10:59:57 +0800",
        "Message-Id": "<20231027030001.602639-21-chaoyong.he@corigine.com>",
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        "References": "<20231026064324.177531-1-chaoyong.he@corigine.com>\n <20231027030001.602639-1-chaoyong.he@corigine.com>",
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    },
    "content": "Add the logic of remap PCI memory.\n\nSigned-off-by: Chaoyong He <chaoyong.he@corigine.com>\nSigned-off-by: Shujing Dong <shujing.dong@corigine.com>\nReviewed-by: Long Wu <long.wu@corigine.com>\nReviewed-by: Peng Zhang <peng.zhang@corigine.com>\n---\n drivers/vdpa/nfp/nfp_vdpa.c | 65 ++++++++++++++++++++++++++++++++++++-\n 1 file changed, 64 insertions(+), 1 deletion(-)",
    "diff": "diff --git a/drivers/vdpa/nfp/nfp_vdpa.c b/drivers/vdpa/nfp/nfp_vdpa.c\nindex ef4ae4946a..824b0d681a 100644\n--- a/drivers/vdpa/nfp/nfp_vdpa.c\n+++ b/drivers/vdpa/nfp/nfp_vdpa.c\n@@ -7,6 +7,7 @@\n \n #include <nfp_common_pci.h>\n #include <nfp_dev.h>\n+#include <rte_vfio.h>\n #include <vdpa_driver.h>\n \n #include \"nfp_vdpa_log.h\"\n@@ -16,6 +17,11 @@\n struct nfp_vdpa_dev {\n \tstruct rte_pci_device *pci_dev;\n \tstruct rte_vdpa_device *vdev;\n+\n+\tint vfio_container_fd;\n+\tint vfio_group_fd;\n+\tint vfio_dev_fd;\n+\tint iommu_group;\n };\n \n struct nfp_vdpa_dev_node {\n@@ -53,12 +59,62 @@ nfp_vdpa_find_node_by_pdev(struct rte_pci_device *pdev)\n \treturn NULL;\n }\n \n+static int\n+nfp_vdpa_vfio_setup(struct nfp_vdpa_dev *device)\n+{\n+\tint ret;\n+\tchar dev_name[RTE_DEV_NAME_MAX_LEN] = {0};\n+\tstruct rte_pci_device *pci_dev = device->pci_dev;\n+\n+\trte_pci_unmap_device(pci_dev);\n+\n+\trte_pci_device_name(&pci_dev->addr, dev_name, RTE_DEV_NAME_MAX_LEN);\n+\trte_vfio_get_group_num(rte_pci_get_sysfs_path(), dev_name,\n+\t\t\t&device->iommu_group);\n+\n+\tdevice->vfio_container_fd = rte_vfio_container_create();\n+\tif (device->vfio_container_fd < 0)\n+\t\treturn -1;\n+\n+\tdevice->vfio_group_fd = rte_vfio_container_group_bind(\n+\t\t\tdevice->vfio_container_fd, device->iommu_group);\n+\tif (device->vfio_group_fd < 0)\n+\t\tgoto container_destroy;\n+\n+\tDRV_VDPA_LOG(DEBUG, \"container_fd=%d, group_fd=%d,\\n\",\n+\t\t\tdevice->vfio_container_fd, device->vfio_group_fd);\n+\n+\tret = rte_pci_map_device(pci_dev);\n+\tif (ret != 0)\n+\t\tgoto group_unbind;\n+\n+\tdevice->vfio_dev_fd = rte_intr_dev_fd_get(pci_dev->intr_handle);\n+\n+\treturn 0;\n+\n+group_unbind:\n+\trte_vfio_container_group_unbind(device->vfio_container_fd, device->iommu_group);\n+container_destroy:\n+\trte_vfio_container_destroy(device->vfio_container_fd);\n+\n+\treturn -1;\n+}\n+\n+static void\n+nfp_vdpa_vfio_teardown(struct nfp_vdpa_dev *device)\n+{\n+\trte_pci_unmap_device(device->pci_dev);\n+\trte_vfio_container_group_unbind(device->vfio_container_fd, device->iommu_group);\n+\trte_vfio_container_destroy(device->vfio_container_fd);\n+}\n+\n struct rte_vdpa_dev_ops nfp_vdpa_ops = {\n };\n \n static int\n nfp_vdpa_pci_probe(struct rte_pci_device *pci_dev)\n {\n+\tint ret;\n \tstruct nfp_vdpa_dev *device;\n \tstruct nfp_vdpa_dev_node *node;\n \n@@ -75,10 +131,14 @@ nfp_vdpa_pci_probe(struct rte_pci_device *pci_dev)\n \n \tdevice->pci_dev = pci_dev;\n \n+\tret = nfp_vdpa_vfio_setup(device);\n+\tif (ret != 0)\n+\t\tgoto free_device;\n+\n \tdevice->vdev = rte_vdpa_register_device(&pci_dev->device, &nfp_vdpa_ops);\n \tif (device->vdev == NULL) {\n \t\tDRV_VDPA_LOG(ERR, \"Failed to register device %s\", pci_dev->name);\n-\t\tgoto free_device;\n+\t\tgoto vfio_teardown;\n \t}\n \n \tnode->device = device;\n@@ -88,6 +148,8 @@ nfp_vdpa_pci_probe(struct rte_pci_device *pci_dev)\n \n \treturn 0;\n \n+vfio_teardown:\n+\tnfp_vdpa_vfio_teardown(device);\n free_device:\n \tfree(device);\n free_node:\n@@ -118,6 +180,7 @@ nfp_vdpa_pci_remove(struct rte_pci_device *pci_dev)\n \tpthread_mutex_unlock(&vdpa_list_lock);\n \n \trte_vdpa_unregister_device(device->vdev);\n+\tnfp_vdpa_vfio_teardown(device);\n \n \tfree(device);\n \tfree(node);\n",
    "prefixes": [
        "v4",
        "20/24"
    ]
}