[dpdk-dev] [PATCH] net/ixgbe: fix dcb configuration issue

[Qiming Yang <qiming.yang@intel.com>]

This patch removed unnecessary check in ixgbe_check_mq_mode,
fixed historical issue.

Fixes: 27b609cbd1c6 ("ethdev: move the multi-queue mode check to specific drivers")
Cc: stable@dpdk.org

Signed-off-by: Qiming Yang <qiming.yang@intel.com>
---
 drivers/net/ixgbe/ixgbe_ethdev.c | 37 -------------------------------------
 1 file changed, 37 deletions(-)

diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index f5006bc..9e3ae95 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -2300,43 +2300,6 @@ ixgbe_check_mq_mode(struct rte_eth_dev *dev)
 			}
 		}
 
-		/* For DCB mode check our configuration before we go further */
-		if (dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) {
-			const struct rte_eth_dcb_rx_conf *conf;
-
-			if (nb_rx_q != IXGBE_DCB_NB_QUEUES) {
-				PMD_INIT_LOG(ERR, "DCB selected, nb_rx_q != %d.",
-						 IXGBE_DCB_NB_QUEUES);
-				return -EINVAL;
-			}
-			conf = &dev_conf->rx_adv_conf.dcb_rx_conf;
-			if (!(conf->nb_tcs == ETH_4_TCS ||
-			       conf->nb_tcs == ETH_8_TCS)) {
-				PMD_INIT_LOG(ERR, "DCB selected, nb_tcs != %d"
-						" and nb_tcs != %d.",
-						ETH_4_TCS, ETH_8_TCS);
-				return -EINVAL;
-			}
-		}
-
-		if (dev_conf->txmode.mq_mode == ETH_MQ_TX_DCB) {
-			const struct rte_eth_dcb_tx_conf *conf;
-
-			if (nb_tx_q != IXGBE_DCB_NB_QUEUES) {
-				PMD_INIT_LOG(ERR, "DCB, nb_tx_q != %d.",
-						 IXGBE_DCB_NB_QUEUES);
-				return -EINVAL;
-			}
-			conf = &dev_conf->tx_adv_conf.dcb_tx_conf;
-			if (!(conf->nb_tcs == ETH_4_TCS ||
-			       conf->nb_tcs == ETH_8_TCS)) {
-				PMD_INIT_LOG(ERR, "DCB selected, nb_tcs != %d"
-						" and nb_tcs != %d.",
-						ETH_4_TCS, ETH_8_TCS);
-				return -EINVAL;
-			}
-		}
-
 		/*
 		 * When DCB/VT is off, maximum number of queues changes,
 		 * except for 82598EB, which remains constant.
-- 
2.9.5