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{
    "id": 27794,
    "url": "https://patches.dpdk.org/api/patches/27794/?format=api",
    "web_url": "https://patches.dpdk.org/project/dpdk/patch/20170823141213.25476-35-shreyansh.jain@nxp.com/",
    "project": {
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    "date": "2017-08-23T14:12:07",
    "name": "[dpdk-dev,v3,34/40] net/dpaa: add support for flow control",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": true,
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    "submitter": {
        "id": 497,
        "url": "https://patches.dpdk.org/api/people/497/?format=api",
        "name": "Shreyansh Jain",
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    "mbox": "https://patches.dpdk.org/project/dpdk/patch/20170823141213.25476-35-shreyansh.jain@nxp.com/mbox/",
    "series": [],
    "comments": "https://patches.dpdk.org/api/patches/27794/comments/",
    "check": "success",
    "checks": "https://patches.dpdk.org/api/patches/27794/checks/",
    "tags": {},
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        "From": "Shreyansh Jain <shreyansh.jain@nxp.com>",
        "To": "<dev@dpdk.org>",
        "CC": "<ferruh.yigit@intel.com>, <hemant.agrawal@nxp.com>",
        "Date": "Wed, 23 Aug 2017 19:42:07 +0530",
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        "Subject": "[dpdk-dev] [PATCH v3 34/40] net/dpaa: add support for flow control",
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    },
    "content": "Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>\nSigned-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>\n---\n doc/guides/nics/features/dpaa.ini |   1 +\n drivers/net/dpaa/dpaa_ethdev.c    | 112 ++++++++++++++++++++++++++++++++++++++\n 2 files changed, 113 insertions(+)",
    "diff": "diff --git a/doc/guides/nics/features/dpaa.ini b/doc/guides/nics/features/dpaa.ini\nindex c09efd8..1ba6b11 100644\n--- a/doc/guides/nics/features/dpaa.ini\n+++ b/doc/guides/nics/features/dpaa.ini\n@@ -11,6 +11,7 @@ MTU update           = Y\n Promiscuous mode     = Y\n Allmulticast mode    = Y\n Unicast MAC filter   = Y\n+Flow control         = Y\n Basic stats          = Y\n ARMv8                = Y\n Usage doc            = Y\ndiff --git a/drivers/net/dpaa/dpaa_ethdev.c b/drivers/net/dpaa/dpaa_ethdev.c\nindex 062f23e..fddd9ec 100644\n--- a/drivers/net/dpaa/dpaa_ethdev.c\n+++ b/drivers/net/dpaa/dpaa_ethdev.c\n@@ -329,6 +329,85 @@ static int dpaa_link_up(struct rte_eth_dev *dev)\n }\n \n static int\n+dpaa_flow_ctrl_set(struct rte_eth_dev *dev,\n+\t\t   struct rte_eth_fc_conf *fc_conf)\n+{\n+\tstruct dpaa_if *dpaa_intf = dev->data->dev_private;\n+\tstruct rte_eth_fc_conf *net_fc;\n+\n+\tPMD_INIT_FUNC_TRACE();\n+\n+\tif (!(dpaa_intf->fc_conf)) {\n+\t\tdpaa_intf->fc_conf = rte_zmalloc(NULL,\n+\t\t\tsizeof(struct rte_eth_fc_conf), MAX_CACHELINE);\n+\t\tif (!dpaa_intf->fc_conf) {\n+\t\t\tDPAA_PMD_ERR(\"unable to save flow control info\");\n+\t\t\treturn -ENOMEM;\n+\t\t}\n+\t}\n+\tnet_fc = dpaa_intf->fc_conf;\n+\n+\tif (fc_conf->high_water < fc_conf->low_water) {\n+\t\tDPAA_PMD_ERR(\"Incorrect Flow Control Configuration\");\n+\t\treturn -EINVAL;\n+\t}\n+\n+\tif (fc_conf->mode == RTE_FC_NONE) {\n+\t\treturn 0;\n+\t} else if (fc_conf->mode == RTE_FC_TX_PAUSE ||\n+\t\t fc_conf->mode == RTE_FC_FULL) {\n+\t\tfman_if_set_fc_threshold(dpaa_intf->fif, fc_conf->high_water,\n+\t\t\t\t\t fc_conf->low_water,\n+\t\t\t\tdpaa_intf->bp_info->bpid);\n+\t\tif (fc_conf->pause_time)\n+\t\t\tfman_if_set_fc_quanta(dpaa_intf->fif,\n+\t\t\t\t\t      fc_conf->pause_time);\n+\t}\n+\n+\t/* Save the information in dpaa device */\n+\tnet_fc->pause_time = fc_conf->pause_time;\n+\tnet_fc->high_water = fc_conf->high_water;\n+\tnet_fc->low_water = fc_conf->low_water;\n+\tnet_fc->send_xon = fc_conf->send_xon;\n+\tnet_fc->mac_ctrl_frame_fwd = fc_conf->mac_ctrl_frame_fwd;\n+\tnet_fc->mode = fc_conf->mode;\n+\tnet_fc->autoneg = fc_conf->autoneg;\n+\n+\treturn 0;\n+}\n+\n+static int\n+dpaa_flow_ctrl_get(struct rte_eth_dev *dev,\n+\t\t   struct rte_eth_fc_conf *fc_conf)\n+{\n+\tstruct dpaa_if *dpaa_intf = dev->data->dev_private;\n+\tstruct rte_eth_fc_conf *net_fc = dpaa_intf->fc_conf;\n+\tint ret;\n+\n+\tPMD_INIT_FUNC_TRACE();\n+\n+\tif (net_fc) {\n+\t\tfc_conf->pause_time = net_fc->pause_time;\n+\t\tfc_conf->high_water = net_fc->high_water;\n+\t\tfc_conf->low_water = net_fc->low_water;\n+\t\tfc_conf->send_xon = net_fc->send_xon;\n+\t\tfc_conf->mac_ctrl_frame_fwd = net_fc->mac_ctrl_frame_fwd;\n+\t\tfc_conf->mode = net_fc->mode;\n+\t\tfc_conf->autoneg = net_fc->autoneg;\n+\t\treturn 0;\n+\t}\n+\tret = fman_if_get_fc_threshold(dpaa_intf->fif);\n+\tif (ret) {\n+\t\tfc_conf->mode = RTE_FC_TX_PAUSE;\n+\t\tfc_conf->pause_time = fman_if_get_fc_quanta(dpaa_intf->fif);\n+\t} else {\n+\t\tfc_conf->mode = RTE_FC_NONE;\n+\t}\n+\n+\treturn 0;\n+}\n+\n+static int\n dpaa_dev_add_mac_addr(struct rte_eth_dev *dev,\n \t\t\t     struct ether_addr *addr,\n \t\t\t     uint32_t index,\n@@ -391,6 +470,9 @@ static struct eth_dev_ops dpaa_devops = {\n \t.rx_queue_release\t  = dpaa_eth_rx_queue_release,\n \t.tx_queue_release\t  = dpaa_eth_tx_queue_release,\n \n+\t.flow_ctrl_get\t\t  = dpaa_flow_ctrl_get,\n+\t.flow_ctrl_set\t\t  = dpaa_flow_ctrl_set,\n+\n \t.link_update\t\t  = dpaa_eth_link_update,\n \t.stats_get\t\t  = dpaa_eth_stats_get,\n \t.stats_reset\t\t  = dpaa_eth_stats_reset,\n@@ -407,6 +489,33 @@ static struct eth_dev_ops dpaa_devops = {\n \n };\n \n+static int dpaa_fc_set_default(struct dpaa_if *dpaa_intf)\n+{\n+\tstruct rte_eth_fc_conf *fc_conf;\n+\tint ret;\n+\n+\tPMD_INIT_FUNC_TRACE();\n+\n+\tif (!(dpaa_intf->fc_conf)) {\n+\t\tdpaa_intf->fc_conf = rte_zmalloc(NULL,\n+\t\t\tsizeof(struct rte_eth_fc_conf), MAX_CACHELINE);\n+\t\tif (!dpaa_intf->fc_conf) {\n+\t\t\tDPAA_PMD_ERR(\"unable to save flow control info\");\n+\t\t\treturn -ENOMEM;\n+\t\t}\n+\t}\n+\tfc_conf = dpaa_intf->fc_conf;\n+\tret = fman_if_get_fc_threshold(dpaa_intf->fif);\n+\tif (ret) {\n+\t\tfc_conf->mode = RTE_FC_TX_PAUSE;\n+\t\tfc_conf->pause_time = fman_if_get_fc_quanta(dpaa_intf->fif);\n+\t} else {\n+\t\tfc_conf->mode = RTE_FC_NONE;\n+\t}\n+\n+\treturn 0;\n+}\n+\n /* Initialise an Rx FQ */\n static int dpaa_rx_queue_init(struct qman_fq *fq,\n \t\t\t      uint32_t fqid)\n@@ -560,6 +669,9 @@ dpaa_dev_init(struct rte_eth_dev *eth_dev)\n \n \tDPAA_PMD_DEBUG(\"All frame queues created\");\n \n+\t/* Get the initial configuration for flow control */\n+\tdpaa_fc_set_default(dpaa_intf);\n+\n \t/* reset bpool list, initialize bpool dynamically */\n \tlist_for_each_entry_safe(bp, tmp_bp, &cfg->fman_if->bpool_list, node) {\n \t\tlist_del(&bp->node);\n",
    "prefixes": [
        "dpdk-dev",
        "v3",
        "34/40"
    ]
}