diff options
| author | Sieng Piaw Liew <liew.s.piaw@gmail.com> | 2021-01-06 22:42:03 +0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-01-07 12:39:53 -0800 |
| commit | 4c59b0f5543db80abbbe9efdd9b25e7899501db5 (patch) | |
| tree | 22ece037de7b65d12e958893d99f7c4cba8eb308 | |
| parent | 9cbfea02c1dbee0afb9128f065e6e793672b9ff7 (diff) | |
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>
| -rw-r--r-- | drivers/net/ethernet/broadcom/bcm63xx_enet.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/bcm63xx_enet.c b/drivers/net/ethernet/broadcom/bcm63xx_enet.c index b82b7805c36a..90f8214b4d22 100644 --- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c +++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c @@ -417,9 +417,11 @@ static int bcm_enet_receive_queue(struct net_device *dev, int budget) 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) { @@ -456,10 +458,13 @@ static int bcm_enet_tx_reclaim(struct net_device *dev, int force) 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); @@ -626,6 +631,8 @@ bcm_enet_start_xmit(struct sk_buff *skb, struct net_device *dev) 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); @@ -1169,6 +1176,7 @@ static int bcm_enet_stop(struct net_device *dev) kdev = &priv->pdev->dev; netif_stop_queue(dev); + netdev_reset_queue(dev); napi_disable(&priv->napi); if (priv->has_phy) phy_stop(dev->phydev); @@ -2338,6 +2346,7 @@ static int bcm_enetsw_stop(struct net_device *dev) del_timer_sync(&priv->swphy_poll); netif_stop_queue(dev); + netdev_reset_queue(dev); napi_disable(&priv->napi); del_timer_sync(&priv->rx_timeout); |