net/dpaa2: support using Tx queue descriptor size

Add support to use Tx queue desc size to configure
congestion notification on TX queue

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>

diff --git a/drivers/net/dpaa2/dpaa2_ethdev.c b/drivers/net/dpaa2/dpaa2_ethdev.c
index 12b8811..b58add9 100644 (file)
--- a/drivers/net/dpaa2/dpaa2_ethdev.c
+++ b/drivers/net/dpaa2/dpaa2_ethdev.c
@@ -793,7 +793,7 @@ dpaa2_dev_rx_queue_setup(struct rte_eth_dev *dev,
 static int
 dpaa2_dev_tx_queue_setup(struct rte_eth_dev *dev,
                         uint16_t tx_queue_id,
-                        uint16_t nb_tx_desc __rte_unused,
+                        uint16_t nb_tx_desc,
                         unsigned int socket_id __rte_unused,
                         const struct rte_eth_txconf *tx_conf)
 {
@@ -873,11 +873,11 @@ dpaa2_dev_tx_queue_setup(struct rte_eth_dev *dev,
                struct dpni_congestion_notification_cfg cong_notif_cfg = {0};
 
                cong_notif_cfg.units = DPNI_CONGESTION_UNIT_FRAMES;
-               cong_notif_cfg.threshold_entry = CONG_ENTER_TX_THRESHOLD;
+               cong_notif_cfg.threshold_entry = nb_tx_desc;
                /* Notify that the queue is not congested when the data in
                 * the queue is below this thershold.
                 */
-               cong_notif_cfg.threshold_exit = CONG_EXIT_TX_THRESHOLD;
+               cong_notif_cfg.threshold_exit = nb_tx_desc - 24;
                cong_notif_cfg.message_ctx = 0;
                cong_notif_cfg.message_iova =
                                (size_t)DPAA2_VADDR_TO_IOVA(dpaa2_q->cscn);