[dpdk-dev] [PATCH v3 6/9] ixgbe: get_dcb_info ops implement

[Jingjing Wu <jingjing.wu@intel.com>]

This patch implements the get_dcb_info ops in ixgbe driver.

Signed-off-by: Jingjing Wu <jingjing.wu@intel.com>
---
 drivers/net/ixgbe/ixgbe_ethdev.c | 79 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)

diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index ece2e73..e9ce466 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -304,6 +304,8 @@ static int ixgbevf_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu);
 static int ixgbe_dev_set_mc_addr_list(struct rte_eth_dev *dev,
 				      struct ether_addr *mc_addr_set,
 				      uint32_t nb_mc_addr);
+static int ixgbe_dev_get_dcb_info(struct rte_eth_dev *dev,
+				   struct rte_eth_dcb_info *dcb_info);
 
 static int ixgbe_get_reg_length(struct rte_eth_dev *dev);
 static int ixgbe_get_regs(struct rte_eth_dev *dev,
@@ -465,6 +467,7 @@ static const struct eth_dev_ops ixgbe_eth_dev_ops = {
 	.get_eeprom_length    = ixgbe_get_eeprom_length,
 	.get_eeprom           = ixgbe_get_eeprom,
 	.set_eeprom           = ixgbe_set_eeprom,
+	.get_dcb_info         = ixgbe_dev_get_dcb_info,
 };
 
 /*
@@ -5734,6 +5737,82 @@ ixgbe_rss_update_sp(enum ixgbe_mac_type mac_type) {
 	}
 }
 
+static int
+ixgbe_dev_get_dcb_info(struct rte_eth_dev *dev,
+			struct rte_eth_dcb_info *dcb_info)
+{
+	struct ixgbe_dcb_config *dcb_config =
+			IXGBE_DEV_PRIVATE_TO_DCB_CFG(dev->data->dev_private);
+	struct ixgbe_dcb_tc_config *tc;
+	uint8_t i, j;
+
+	if (dev->data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_DCB_FLAG)
+		dcb_info->nb_tcs = dcb_config->num_tcs.pg_tcs;
+	else
+		dcb_info->nb_tcs = 1;
+
+	if (dcb_config->vt_mode) { /* vt is enabled*/
+		struct rte_eth_vmdq_dcb_conf *vmdq_rx_conf =
+				&dev->data->dev_conf.rx_adv_conf.vmdq_dcb_conf;
+		for (i = 0; i < ETH_DCB_NUM_USER_PRIORITIES; i++)
+			dcb_info->prio_tc[i] = vmdq_rx_conf->dcb_tc[i];
+		for (i = 0; i < vmdq_rx_conf->nb_queue_pools; i++) {
+			for (j = 0; j < dcb_info->nb_tcs; j++) {
+				dcb_info->tc_queue.tc_rxq[i][j].base =
+						i * dcb_info->nb_tcs + j;
+				dcb_info->tc_queue.tc_rxq[i][j].nb_queue = 1;
+				dcb_info->tc_queue.tc_txq[i][j].base =
+						i * dcb_info->nb_tcs + j;
+				dcb_info->tc_queue.tc_txq[i][j].nb_queue = 1;
+			}
+		}
+	} else { /* vt is disabled*/
+		struct rte_eth_dcb_rx_conf *rx_conf =
+				&dev->data->dev_conf.rx_adv_conf.dcb_rx_conf;
+		for (i = 0; i < ETH_DCB_NUM_USER_PRIORITIES; i++)
+			dcb_info->prio_tc[i] = rx_conf->dcb_tc[i];
+		if (dcb_info->nb_tcs == ETH_4_TCS) {
+			for (i = 0; i < dcb_info->nb_tcs; i++) {
+				dcb_info->tc_queue.tc_rxq[0][i].base = i * 32;
+				dcb_info->tc_queue.tc_rxq[0][i].nb_queue = 16;
+			}
+			dcb_info->tc_queue.tc_txq[0][0].base = 0;
+			dcb_info->tc_queue.tc_txq[0][1].base = 64;
+			dcb_info->tc_queue.tc_txq[0][2].base = 96;
+			dcb_info->tc_queue.tc_txq[0][3].base = 112;
+			dcb_info->tc_queue.tc_txq[0][0].nb_queue = 64;
+			dcb_info->tc_queue.tc_txq[0][1].nb_queue = 32;
+			dcb_info->tc_queue.tc_txq[0][2].nb_queue = 16;
+			dcb_info->tc_queue.tc_txq[0][3].nb_queue = 16;
+		} else if (dcb_info->nb_tcs == ETH_8_TCS) {
+			for (i = 0; i < dcb_info->nb_tcs; i++) {
+				dcb_info->tc_queue.tc_rxq[0][i].base = i * 16;
+				dcb_info->tc_queue.tc_rxq[0][i].nb_queue = 16;
+			}
+			dcb_info->tc_queue.tc_txq[0][0].base = 0;
+			dcb_info->tc_queue.tc_txq[0][1].base = 32;
+			dcb_info->tc_queue.tc_txq[0][2].base = 64;
+			dcb_info->tc_queue.tc_txq[0][3].base = 80;
+			dcb_info->tc_queue.tc_txq[0][4].base = 96;
+			dcb_info->tc_queue.tc_txq[0][5].base = 104;
+			dcb_info->tc_queue.tc_txq[0][6].base = 112;
+			dcb_info->tc_queue.tc_txq[0][7].base = 120;
+			dcb_info->tc_queue.tc_txq[0][0].nb_queue = 32;
+			dcb_info->tc_queue.tc_txq[0][1].nb_queue = 32;
+			dcb_info->tc_queue.tc_txq[0][2].nb_queue = 16;
+			dcb_info->tc_queue.tc_txq[0][3].nb_queue = 16;
+			dcb_info->tc_queue.tc_txq[0][4].nb_queue = 8;
+			dcb_info->tc_queue.tc_txq[0][5].nb_queue = 8;
+			dcb_info->tc_queue.tc_txq[0][6].nb_queue = 8;
+			dcb_info->tc_queue.tc_txq[0][7].nb_queue = 8;
+		}
+	}
+	for (i = 0; i < dcb_info->nb_tcs; i++) {
+		tc = &dcb_config->tc_config[i];
+		dcb_info->tc_bws[i] = tc->path[IXGBE_DCB_TX_CONFIG].bwg_percent;
+	}
+	return 0;
+}
 
 static struct rte_driver rte_ixgbe_driver = {
 	.type = PMD_PDEV,
-- 
2.4.0