net/hns3: fix crash with multi-TC

[dpdk.git] / drivers / net / hns3 / hns3_dcb.c

diff --git a/drivers/net/hns3/hns3_dcb.c b/drivers/net/hns3/hns3_dcb.c
index ab02c87..fb50179 100644 (file)
--- a/drivers/net/hns3/hns3_dcb.c
+++ b/drivers/net/hns3/hns3_dcb.c
@@ -1351,6 +1351,8 @@ hns3_dcb_cfg_validate(struct hns3_adapter *hns, uint8_t *tc, bool *changed)
 {
        struct rte_eth_dcb_rx_conf *dcb_rx_conf;
        struct hns3_hw *hw = &hns->hw;
+       uint16_t nb_rx_q = hw->data->nb_rx_queues;
+       uint16_t nb_tx_q = hw->data->nb_tx_queues;
        uint8_t max_tc = 0;
        uint8_t pfc_en;
        int i;
@@ -1376,6 +1378,10 @@ hns3_dcb_cfg_validate(struct hns3_adapter *hns, uint8_t *tc, bool *changed)
        pfc_en = RTE_LEN2MASK((uint8_t)dcb_rx_conf->nb_tcs, uint8_t);
        if (hw->dcb_info.pfc_en != pfc_en)
                *changed = true;
+
+       /* tx/rx queue number is reconfigured. */
+       if (nb_rx_q != hw->used_rx_queues || nb_tx_q != hw->used_tx_queues)
+               *changed = true;
 }
 
 static int