> -----Original Message-----
> From: Wu, Jingjing
> Sent: Thursday, September 24, 2015 2:03 PM
> To: dev at dpdk.org
> Cc: Wu, Jingjing; Liu, Jijiang; Zhang, Helin; Tao, Zhe; Pei, Yulong
> Subject: [PATCH 7/8] i40e: get_dcb_info ops implement
>
> 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
If there are some command lines in testpmd to get DCB information, that is
great.
