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

["Liu, Jijiang" <jijiang.liu@intel.com>]

> -----Original Message-----
> From: Wu, Jingjing
> Sent: Thursday, September 24, 2015 2:03 PM
> To: dev@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@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.