ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/target/linux/bcm63xx/patches-5.4/041-v5.12-bcm63xx_enet-add-BQL-support.patch b/target/linux/bcm63xx/patches-5.4/041-v5.12-bcm63xx_enet-add-BQL-support.patch
new file mode 100644
index 0000000..f55aa8f
--- /dev/null
+++ b/target/linux/bcm63xx/patches-5.4/041-v5.12-bcm63xx_enet-add-BQL-support.patch
@@ -0,0 +1,68 @@
+From 4c59b0f5543db80abbbe9efdd9b25e7899501db5 Mon Sep 17 00:00:00 2001
+From: Sieng Piaw Liew <liew.s.piaw@gmail.com>
+Date: Wed, 6 Jan 2021 22:42:03 +0800
+Subject: [PATCH 2/7] bcm63xx_enet: add BQL support
+
+Add Byte Queue Limits support to reduce/remove bufferbloat in
+bcm63xx_enet.
+
+Signed-off-by: Sieng Piaw Liew <liew.s.piaw@gmail.com>
+Acked-by: Florian Fainelli <f.fainelli@gmail.com>
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+---
+ drivers/net/ethernet/broadcom/bcm63xx_enet.c | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
++++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+@@ -418,9 +418,11 @@ static int bcm_enet_receive_queue(struct
+ static int bcm_enet_tx_reclaim(struct net_device *dev, int force)
+ {
+ struct bcm_enet_priv *priv;
++ unsigned int bytes;
+ int released;
+
+ priv = netdev_priv(dev);
++ bytes = 0;
+ released = 0;
+
+ while (priv->tx_desc_count < priv->tx_ring_size) {
+@@ -457,10 +459,13 @@ static int bcm_enet_tx_reclaim(struct ne
+ if (desc->len_stat & DMADESC_UNDER_MASK)
+ dev->stats.tx_errors++;
+
++ bytes += skb->len;
+ dev_kfree_skb(skb);
+ released++;
+ }
+
++ netdev_completed_queue(dev, released, bytes);
++
+ if (netif_queue_stopped(dev) && released)
+ netif_wake_queue(dev);
+
+@@ -627,6 +632,8 @@ bcm_enet_start_xmit(struct sk_buff *skb,
+ desc->len_stat = len_stat;
+ wmb();
+
++ netdev_sent_queue(dev, skb->len);
++
+ /* kick tx dma */
+ enet_dmac_writel(priv, priv->dma_chan_en_mask,
+ ENETDMAC_CHANCFG, priv->tx_chan);
+@@ -1170,6 +1177,7 @@ static int bcm_enet_stop(struct net_devi
+ kdev = &priv->pdev->dev;
+
+ netif_stop_queue(dev);
++ netdev_reset_queue(dev);
+ napi_disable(&priv->napi);
+ if (priv->has_phy)
+ phy_stop(dev->phydev);
+@@ -2343,6 +2351,7 @@ static int bcm_enetsw_stop(struct net_de
+
+ del_timer_sync(&priv->swphy_poll);
+ netif_stop_queue(dev);
++ netdev_reset_queue(dev);
+ napi_disable(&priv->napi);
+ del_timer_sync(&priv->rx_timeout);
+