net/dpaa2: add support for frame based Tx congestion

Change from byte based to frame based.

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 a1ef1cb..82dd8bb 100644 (file)
--- a/drivers/net/dpaa2/dpaa2_ethdev.c
+++ b/drivers/net/dpaa2/dpaa2_ethdev.c
@@ -492,8 +492,7 @@ dpaa2_dev_tx_queue_setup(struct rte_eth_dev *dev,
        if (priv->flags & DPAA2_TX_CGR_SUPPORT) {
                struct dpni_congestion_notification_cfg cong_notif_cfg;
 
-               cong_notif_cfg.units = DPNI_CONGESTION_UNIT_BYTES;
-               /* Notify about congestion when the queue size is 32 KB */
+               cong_notif_cfg.units = DPNI_CONGESTION_UNIT_FRAMES;
                cong_notif_cfg.threshold_entry = CONG_ENTER_TX_THRESHOLD;
                /* Notify that the queue is not congested when the data in
                 * the queue is below this thershold.

diff --git a/drivers/net/dpaa2/dpaa2_ethdev.h b/drivers/net/dpaa2/dpaa2_ethdev.h
index a146088..ee21cbb 100644 (file)
--- a/drivers/net/dpaa2/dpaa2_ethdev.h
+++ b/drivers/net/dpaa2/dpaa2_ethdev.h
@@ -47,19 +47,18 @@
 /*default tc to be used for ,congestion, distribution etc configuration. */
 #define DPAA2_DEF_TC           0
 
-/* Threshold for a queue to *Enter* Congestion state.
- * It is set to 32KB
+/* Threshold for a Tx queue to *Enter* Congestion state.
  */
-#define CONG_ENTER_TX_THRESHOLD   (32 * 1024)
+#define CONG_ENTER_TX_THRESHOLD   512
 
 /* Threshold for a queue to *Exit* Congestion state.
  */
-#define CONG_EXIT_TX_THRESHOLD    (24 * 1024)
+#define CONG_EXIT_TX_THRESHOLD    480
 
 /* RX queue tail drop threshold
  * currently considering 32 KB packets
  */
-#define CONG_THRESHOLD_RX_Q  (32 * 1024)
+#define CONG_THRESHOLD_RX_Q  (64 * 1024)
 
 /* Size of the input SMMU mapped memory required by MC */
 #define DIST_PARAM_IOVA_SIZE 256