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{
    "id": 26012,
    "url": "https://patches.dpdk.org/api/patches/26012/?format=api",
    "web_url": "https://patches.dpdk.org/project/dpdk/patch/20170629182206.1072-14-jblunck@infradead.org/",
    "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": "<20170629182206.1072-14-jblunck@infradead.org>",
    "list_archive_url": "https://inbox.dpdk.org/dev/20170629182206.1072-14-jblunck@infradead.org",
    "date": "2017-06-29T18:22:04",
    "name": "[dpdk-dev,v7,13/15] eal: add hotplug add/remove functions",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": true,
    "hash": "e62838c300cbe9e343ba5a3951ff6e277627ddea",
    "submitter": {
        "id": 249,
        "url": "https://patches.dpdk.org/api/people/249/?format=api",
        "name": "Jan Blunck",
        "email": "jblunck@infradead.org"
    },
    "delegate": null,
    "mbox": "https://patches.dpdk.org/project/dpdk/patch/20170629182206.1072-14-jblunck@infradead.org/mbox/",
    "series": [],
    "comments": "https://patches.dpdk.org/api/patches/26012/comments/",
    "check": "fail",
    "checks": "https://patches.dpdk.org/api/patches/26012/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<dev-bounces@dpdk.org>",
        "X-Original-To": "patchwork@dpdk.org",
        "Delivered-To": "patchwork@dpdk.org",
        "Received": [
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        ],
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        "X-Received": "by 10.80.129.4 with SMTP id 4mr2642378edc.120.1498760562401;\n\tThu, 29 Jun 2017 11:22:42 -0700 (PDT)",
        "From": "Jan Blunck <jblunck@infradead.org>",
        "To": "dev@dpdk.org",
        "Cc": "gaetan.rivet@6wind.com,\n\tshreyansh.jain@nxp.com",
        "Date": "Thu, 29 Jun 2017 20:22:04 +0200",
        "Message-Id": "<20170629182206.1072-14-jblunck@infradead.org>",
        "X-Mailer": "git-send-email 2.9.4",
        "In-Reply-To": "<20170629182206.1072-1-jblunck@infradead.org>",
        "References": "<cover.1498577192.git.gaetan.rivet@6wind.com>\n\t<20170629182206.1072-1-jblunck@infradead.org>",
        "Subject": "[dpdk-dev] [PATCH v7 13/15] eal: add hotplug add/remove functions",
        "X-BeenThere": "dev@dpdk.org",
        "X-Mailman-Version": "2.1.15",
        "Precedence": "list",
        "List-Id": "DPDK patches and discussions <dev.dpdk.org>",
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        "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": "Signed-off-by: Jan Blunck <jblunck@infradead.org>\n---\n lib/librte_eal/bsdapp/eal/rte_eal_version.map   |  2 +\n lib/librte_eal/common/eal_common_dev.c          | 68 +++++++++++++++++++++++++\n lib/librte_eal/common/include/rte_dev.h         | 28 ++++++++++\n lib/librte_eal/linuxapp/eal/rte_eal_version.map |  2 +\n 4 files changed, 100 insertions(+)",
    "diff": "diff --git a/lib/librte_eal/bsdapp/eal/rte_eal_version.map b/lib/librte_eal/bsdapp/eal/rte_eal_version.map\nindex 21640d6..b7d26b2 100644\n--- a/lib/librte_eal/bsdapp/eal/rte_eal_version.map\n+++ b/lib/librte_eal/bsdapp/eal/rte_eal_version.map\n@@ -166,6 +166,8 @@ DPDK_17.05 {\n \trte_bus_find_by_device;\n \trte_bus_find_device;\n \trte_cpu_is_supported;\n+\trte_eal_hotplug_add;\n+\trte_eal_hotplug_remove;\n \trte_log_dump;\n \trte_log_register;\n \trte_log_get_global_level;\ndiff --git a/lib/librte_eal/common/eal_common_dev.c b/lib/librte_eal/common/eal_common_dev.c\nindex a400ddd..477b4cf 100644\n--- a/lib/librte_eal/common/eal_common_dev.c\n+++ b/lib/librte_eal/common/eal_common_dev.c\n@@ -92,3 +92,71 @@ int rte_eal_dev_detach(const char *name)\n \tRTE_LOG(ERR, EAL, \"Driver cannot detach the device (%s)\\n\", name);\n \treturn -EINVAL;\n }\n+\n+int rte_eal_hotplug_add(const char *busname, const char *devname,\n+\t\t\tconst char *devargs)\n+{\n+\tstruct rte_bus *bus;\n+\tstruct rte_device *dev;\n+\tint ret;\n+\n+\tbus = rte_bus_find_by_name(busname);\n+\tif (!bus) {\n+\t\tRTE_LOG(ERR, EAL, \"Cannot find bus (%s)\\n\", busname);\n+\t\treturn -ENOENT;\n+\t}\n+\n+\tif (!bus->plug) {\n+\t\tRTE_LOG(ERR, EAL, \"Function plug not supported by bus (%s)\\n\",\n+\t\t\tbus->name);\n+\t\treturn -ENOTSUP;\n+\t}\n+\n+\tret = bus->scan();\n+\tif (ret)\n+\t\treturn ret;\n+\n+\tdev = bus->find_device(NULL, cmp_detached_dev_name, devname);\n+\tif (!dev) {\n+\t\tRTE_LOG(ERR, EAL, \"Cannot find unplugged device (%s)\\n\",\n+\t\t\tdevname);\n+\t\treturn -EINVAL;\n+\t}\n+\n+\tret = bus->plug(dev, devargs);\n+\tif (ret)\n+\t\tRTE_LOG(ERR, EAL, \"Driver cannot attach the device (%s)\\n\",\n+\t\t\tdev->name);\n+\treturn ret;\n+}\n+\n+int rte_eal_hotplug_remove(const char *busname, const char *devname)\n+{\n+\tstruct rte_bus *bus;\n+\tstruct rte_device *dev;\n+\tint ret;\n+\n+\tbus = rte_bus_find_by_name(busname);\n+\tif (!bus) {\n+\t\tRTE_LOG(ERR, EAL, \"Cannot find bus (%s)\\n\", busname);\n+\t\treturn -ENOENT;\n+\t}\n+\n+\tif (!bus->unplug) {\n+\t\tRTE_LOG(ERR, EAL, \"Function unplug not supported by bus (%s)\\n\",\n+\t\t\tbus->name);\n+\t\treturn -ENOTSUP;\n+\t}\n+\n+\tdev = bus->find_device(NULL, cmp_dev_name, devname);\n+\tif (!dev) {\n+\t\tRTE_LOG(ERR, EAL, \"Cannot find plugged device (%s)\\n\", devname);\n+\t\treturn -EINVAL;\n+\t}\n+\n+\tret = bus->unplug(dev);\n+\tif (ret)\n+\t\tRTE_LOG(ERR, EAL, \"Driver cannot detach the device (%s)\\n\",\n+\t\t\tdev->name);\n+\treturn ret;\n+}\ndiff --git a/lib/librte_eal/common/include/rte_dev.h b/lib/librte_eal/common/include/rte_dev.h\nindex 04d9c28..95440eb 100644\n--- a/lib/librte_eal/common/include/rte_dev.h\n+++ b/lib/librte_eal/common/include/rte_dev.h\n@@ -192,6 +192,34 @@ int rte_eal_dev_attach(const char *name, const char *devargs);\n int rte_eal_dev_detach(const char *name);\n \n /**\n+ * Hotplug add a given device to a specific bus.\n+ *\n+ * @param busname\n+ *   The bus name the device is added to.\n+ * @param devname\n+ *   The device name. Based on this device name, eal will identify a driver\n+ *   capable of handling it and pass it to the driver probing function.\n+ * @param devargs\n+ *   Device arguments to be passed to the driver.\n+ * @return\n+ *   0 on success, negative on error.\n+ */\n+int rte_eal_hotplug_add(const char *busname, const char *devname,\n+\t\t\tconst char *devargs);\n+\n+/**\n+ * Hotplug remove a given device from a specific bus.\n+ *\n+ * @param busname\n+ *   The bus name the device is removed from.\n+ * @param devname\n+ *   The device name being removed.\n+ * @return\n+ *   0 on success, negative on error.\n+ */\n+int rte_eal_hotplug_remove(const char *busname, const char *devname);\n+\n+/**\n  * Device comparison function.\n  *\n  * This type of function is used to compare an rte_device with arbitrary\ndiff --git a/lib/librte_eal/linuxapp/eal/rte_eal_version.map b/lib/librte_eal/linuxapp/eal/rte_eal_version.map\nindex e0a056d..a94cb7a 100644\n--- a/lib/librte_eal/linuxapp/eal/rte_eal_version.map\n+++ b/lib/librte_eal/linuxapp/eal/rte_eal_version.map\n@@ -170,6 +170,8 @@ DPDK_17.05 {\n \trte_bus_find_by_device;\n \trte_bus_find_device;\n \trte_cpu_is_supported;\n+\trte_eal_hotplug_add;\n+\trte_eal_hotplug_remove;\n \trte_intr_free_epoll_fd;\n \trte_log_dump;\n \trte_log_get_global_level;\n",
    "prefixes": [
        "dpdk-dev",
        "v7",
        "13/15"
    ]
}