Patch Detail

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{
    "id": 21201,
    "url": "https://patches.dpdk.org/api/patches/21201/?format=api",
    "web_url": "https://patches.dpdk.org/project/dpdk/patch/1488545223-25739-36-git-send-email-hemant.agrawal@nxp.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": "<1488545223-25739-36-git-send-email-hemant.agrawal@nxp.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/1488545223-25739-36-git-send-email-hemant.agrawal@nxp.com",
    "date": "2017-03-03T12:46:52",
    "name": "[dpdk-dev,PATCHv8,35/46] net/dpaa2: link status update",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": true,
    "hash": "625d8e30f4ae5b47f1d374d6d94ad9ca9c48d060",
    "submitter": {
        "id": 477,
        "url": "https://patches.dpdk.org/api/people/477/?format=api",
        "name": "Hemant Agrawal",
        "email": "hemant.agrawal@nxp.com"
    },
    "delegate": {
        "id": 319,
        "url": "https://patches.dpdk.org/api/users/319/?format=api",
        "username": "fyigit",
        "first_name": "Ferruh",
        "last_name": "Yigit",
        "email": "ferruh.yigit@amd.com"
    },
    "mbox": "https://patches.dpdk.org/project/dpdk/patch/1488545223-25739-36-git-send-email-hemant.agrawal@nxp.com/mbox/",
    "series": [],
    "comments": "https://patches.dpdk.org/api/patches/21201/comments/",
    "check": "success",
    "checks": "https://patches.dpdk.org/api/patches/21201/checks/",
    "tags": {},
    "related": [],
    "headers": {
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        ],
        "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; ",
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        "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 18:16:52 +0530",
        "Message-ID": "<1488545223-25739-36-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>",
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        "Subject": "[dpdk-dev] [PATCHv8 35/46] net/dpaa2: link status update",
        "X-BeenThere": "dev@dpdk.org",
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        "Precedence": "list",
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        "Errors-To": "dev-bounces@dpdk.org",
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    },
    "content": "Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>\n---\n doc/guides/nics/features/dpaa2.ini |   1 +\n drivers/net/dpaa2/dpaa2_ethdev.c   | 107 +++++++++++++++++++++++++++++++++++++\n 2 files changed, 108 insertions(+)",
    "diff": "diff --git a/doc/guides/nics/features/dpaa2.ini b/doc/guides/nics/features/dpaa2.ini\nindex 0746d4b..0660cab 100644\n--- a/doc/guides/nics/features/dpaa2.ini\n+++ b/doc/guides/nics/features/dpaa2.ini\n@@ -4,6 +4,7 @@\n ; Refer to default.ini for the full list of available PMD features.\n ;\n [Features]\n+Link status          = Y\n Queue start/stop     = Y\n MTU update           = Y\n Promiscuous mode     = Y\ndiff --git a/drivers/net/dpaa2/dpaa2_ethdev.c b/drivers/net/dpaa2/dpaa2_ethdev.c\nindex c4131e1..14b9654 100644\n--- a/drivers/net/dpaa2/dpaa2_ethdev.c\n+++ b/drivers/net/dpaa2/dpaa2_ethdev.c\n@@ -54,6 +54,58 @@\n \n static struct rte_dpaa2_driver rte_dpaa2_pmd;\n \n+/**\n+ * Atomically reads the link status information from global\n+ * structure rte_eth_dev.\n+ *\n+ * @param dev\n+ *   - Pointer to the structure rte_eth_dev to read from.\n+ *   - Pointer to the buffer to be saved with the link status.\n+ *\n+ * @return\n+ *   - On success, zero.\n+ *   - On failure, negative value.\n+ */\n+static inline int\n+dpaa2_dev_atomic_read_link_status(struct rte_eth_dev *dev,\n+\t\t\t\t  struct rte_eth_link *link)\n+{\n+\tstruct rte_eth_link *dst = link;\n+\tstruct rte_eth_link *src = &dev->data->dev_link;\n+\n+\tif (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,\n+\t\t\t\t*(uint64_t *)src) == 0)\n+\t\treturn -1;\n+\n+\treturn 0;\n+}\n+\n+/**\n+ * Atomically writes the link status information into global\n+ * structure rte_eth_dev.\n+ *\n+ * @param dev\n+ *   - Pointer to the structure rte_eth_dev to read from.\n+ *   - Pointer to the buffer to be saved with the link status.\n+ *\n+ * @return\n+ *   - On success, zero.\n+ *   - On failure, negative value.\n+ */\n+static inline int\n+dpaa2_dev_atomic_write_link_status(struct rte_eth_dev *dev,\n+\t\t\t\t   struct rte_eth_link *link)\n+{\n+\tstruct rte_eth_link *dst = &dev->data->dev_link;\n+\tstruct rte_eth_link *src = link;\n+\n+\tif (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,\n+\t\t\t\t*(uint64_t *)src) == 0)\n+\t\treturn -1;\n+\n+\treturn 0;\n+}\n+\n static void\n dpaa2_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)\n {\n@@ -430,6 +482,7 @@\n \tstruct dpaa2_dev_priv *priv = dev->data->dev_private;\n \tstruct fsl_mc_io *dpni = (struct fsl_mc_io *)priv->hw;\n \tint ret;\n+\tstruct rte_eth_link link;\n \n \tPMD_INIT_FUNC_TRACE();\n \n@@ -439,6 +492,10 @@\n \t\t\t     ret, priv->hw_id);\n \t\treturn;\n \t}\n+\n+\t/* clear the recorded link status */\n+\tmemset(&link, 0, sizeof(link));\n+\tdpaa2_dev_atomic_write_link_status(dev, &link);\n }\n \n static void\n@@ -531,6 +588,55 @@\n \treturn 0;\n }\n \n+/* return 0 means link status changed, -1 means not changed */\n+static int\n+dpaa2_dev_link_update(struct rte_eth_dev *dev,\n+\t\t\tint wait_to_complete __rte_unused)\n+{\n+\tint ret;\n+\tstruct dpaa2_dev_priv *priv = dev->data->dev_private;\n+\tstruct fsl_mc_io *dpni = (struct fsl_mc_io *)priv->hw;\n+\tstruct rte_eth_link link, old;\n+\tstruct dpni_link_state state = {0};\n+\n+\tPMD_INIT_FUNC_TRACE();\n+\n+\tif (dpni == NULL) {\n+\t\tRTE_LOG(ERR, PMD, \"error : dpni is NULL\");\n+\t\treturn 0;\n+\t}\n+\tmemset(&old, 0, sizeof(old));\n+\tdpaa2_dev_atomic_read_link_status(dev, &old);\n+\n+\tret = dpni_get_link_state(dpni, CMD_PRI_LOW, priv->token, &state);\n+\tif (ret < 0) {\n+\t\tRTE_LOG(ERR, PMD, \"error: dpni_get_link_state %d\", ret);\n+\t\treturn -1;\n+\t}\n+\n+\tif ((old.link_status == state.up) && (old.link_speed == state.rate)) {\n+\t\tRTE_LOG(DEBUG, PMD, \"No change in status\\n\");\n+\t\treturn -1;\n+\t}\n+\n+\tmemset(&link, 0, sizeof(struct rte_eth_link));\n+\tlink.link_status = state.up;\n+\tlink.link_speed = state.rate;\n+\n+\tif (state.options & DPNI_LINK_OPT_HALF_DUPLEX)\n+\t\tlink.link_duplex = ETH_LINK_HALF_DUPLEX;\n+\telse\n+\t\tlink.link_duplex = ETH_LINK_FULL_DUPLEX;\n+\n+\tdpaa2_dev_atomic_write_link_status(dev, &link);\n+\n+\tif (link.link_status)\n+\t\tPMD_DRV_LOG(INFO, \"Port %d Link is Up\\n\", dev->data->port_id);\n+\telse\n+\t\tPMD_DRV_LOG(INFO, \"Port %d Link is Down\\n\", dev->data->port_id);\n+\treturn 0;\n+}\n+\n static struct eth_dev_ops dpaa2_ethdev_ops = {\n \t.dev_configure\t  = dpaa2_eth_dev_configure,\n \t.dev_start\t      = dpaa2_dev_start,\n@@ -538,6 +644,7 @@\n \t.dev_close\t      = dpaa2_dev_close,\n \t.promiscuous_enable   = dpaa2_dev_promiscuous_enable,\n \t.promiscuous_disable  = dpaa2_dev_promiscuous_disable,\n+\t.link_update\t   = dpaa2_dev_link_update,\n \t.dev_infos_get\t   = dpaa2_dev_info_get,\n \t.dev_supported_ptypes_get = dpaa2_supported_ptypes_get,\n \t.mtu_set           = dpaa2_dev_mtu_set,\n",
    "prefixes": [
        "dpdk-dev",
        "PATCHv8",
        "35/46"
    ]
}