[dpdk-dev] [PATCH 7/8] i40e: get_dcb_info ops implement

[Jingjing Wu]

    This patch implements the get_dcb_info ops in i40e driver.

Signed-off-by: Jingjing Wu <jingjing.wu at intel.com>
---
 drivers/net/i40e/i40e_ethdev.c | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 7d252fa..76e2353 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -220,6 +220,8 @@ static int i40e_dev_filter_ctrl(struct rte_eth_dev *dev,
                                enum rte_filter_type filter_type,
                                enum rte_filter_op filter_op,
                                void *arg);
+static void i40e_dev_get_dcb_info(struct rte_eth_dev *dev,
+                                 struct rte_eth_dcb_info *dcb_info);
 static void i40e_configure_registers(struct i40e_hw *hw);
 static void i40e_hw_init(struct i40e_hw *hw);
 static int i40e_config_qinq(struct i40e_hw *hw, struct i40e_vsi *vsi);
@@ -292,6 +294,7 @@ static const struct eth_dev_ops i40e_eth_dev_ops = {
        .timesync_disable             = i40e_timesync_disable,
        .timesync_read_rx_timestamp   = i40e_timesync_read_rx_timestamp,
        .timesync_read_tx_timestamp   = i40e_timesync_read_tx_timestamp,
+       .get_dcb_info                 = i40e_dev_get_dcb_info,
 };

 static struct eth_driver rte_i40e_pmd = {
@@ -6808,3 +6811,42 @@ i40e_dcb_setup(struct rte_eth_dev *dev)
        }
        return 0;
 }
+
+static void
+i40e_dev_get_dcb_info(struct rte_eth_dev *dev,
+                     struct rte_eth_dcb_info *dcb_info)
+{
+       struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
+       struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+       struct i40e_vsi *vsi = pf->main_vsi;
+       struct i40e_dcbx_config *dcb_cfg = &hw->local_dcbx_config;
+       uint16_t bsf, tc_mapping;
+       int i;
+
+       if (dev->data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_DCB_FLAG)
+               dcb_info->nb_tcs =
+                       dev->data->dev_conf.rx_adv_conf.dcb_rx_conf.nb_tcs;
+       else
+               dcb_info->nb_tcs = 1;
+       for (i = 0; i < I40E_MAX_USER_PRIORITY; i++)
+               dcb_info->prio_tc[i] = dcb_cfg->etscfg.prioritytable[i];
+       for (i = 0; i < dcb_info->nb_tcs; i++)
+               dcb_info->tc_bws[i] = dcb_cfg->etscfg.tcbwtable[i];
+
+       for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
+               if (vsi->enabled_tc & (1 << i)) {
+                       tc_mapping = rte_le_to_cpu_16(vsi->info.tc_mapping[i]);
+                       /* only main vsi support multi TCs */
+                       dcb_info->tc_queue.tc_rxq[0][i].base =
+                               (tc_mapping & I40E_AQ_VSI_TC_QUE_OFFSET_MASK) >>
+                               I40E_AQ_VSI_TC_QUE_OFFSET_SHIFT;
+                       dcb_info->tc_queue.tc_txq[0][i].base =
+                               dcb_info->tc_queue.tc_rxq[0][i].base;
+                       bsf = (tc_mapping & I40E_AQ_VSI_TC_QUE_NUMBER_MASK) >>
+                               I40E_AQ_VSI_TC_QUE_NUMBER_SHIFT;
+                       dcb_info->tc_queue.tc_rxq[0][i].nb_queue = 1 << bsf;
+                       dcb_info->tc_queue.tc_txq[0][i].nb_queue =
+                               dcb_info->tc_queue.tc_rxq[0][i].nb_queue;
+               }
+       }
+}
-- 
2.4.0