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| author | Sieng Piaw Liew <liew.s.piaw@gmail.com> | 2020-11-13 02:20:30 +0800 |
|---|---|---|
| committer | Álvaro Fernández Rojas <noltari@gmail.com> | 2020-12-05 09:55:16 +0100 |
| commit | 342524895c1636734f79f4901ac8a4c3f5f9849a (patch) | |
| tree | bd24512110eb430752cd5ca992b0f98312c0e4cf | |
| parent | 33c27ccf4aef677d28246d30e815050ead68b434 (diff) | |
| download | upstream-342524895c1636734f79f4901ac8a4c3f5f9849a.tar.gz upstream-342524895c1636734f79f4901ac8a4c3f5f9849a.tar.bz2 upstream-342524895c1636734f79f4901ac8a4c3f5f9849a.zip | |
bcm63xx: add BQL support
Add Byte Queue Limits support to reduce/remove bufferbloat in bcm63xx target.
Signed-off-by: Sieng Piaw Liew <liew.s.piaw@gmail.com>
[Amend commit description]
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
| -rw-r--r-- | target/linux/bcm63xx/patches-5.4/442-bcm63xx_enet-add_bql_support.patch | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/target/linux/bcm63xx/patches-5.4/442-bcm63xx_enet-add_bql_support.patch b/target/linux/bcm63xx/patches-5.4/442-bcm63xx_enet-add_bql_support.patch new file mode 100644 index 0000000000..7955b7134f --- /dev/null +++ b/target/linux/bcm63xx/patches-5.4/442-bcm63xx_enet-add_bql_support.patch @@ -0,0 +1,67 @@ +From 3c0e8e1259d223a1493c47f7e277d05b93909b6b Mon Sep 17 00:00:00 2001 +From: Sieng Piaw Liew <liew.s.piaw@gmail.com> +Date: Mon, 2 Nov 2020 11:34:06 +0800 +Subject: [PATCH 1/2] bcm63xx: add BQL support + +Add Byte Queue Limits support to reduce/remove bufferbloat in bcm63xx target. + +Signed-off-by: Sieng Piaw Liew <liew.s.piaw@gmail.com> +--- + bcm63xx_enet.c | 11 +++++++++++ + 1 file changed, 11 insertions(+) + +--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c ++++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c +@@ -423,9 +423,11 @@ static int bcm_enet_tx_reclaim(struct ne + { + struct bcm_enet_priv *priv; + int released; ++ unsigned int bytes; + + priv = netdev_priv(dev); + released = 0; ++ bytes = 0; + + while (priv->tx_desc_count < priv->tx_ring_size) { + struct bcm_enet_desc *desc; +@@ -461,10 +463,13 @@ 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); + +@@ -631,6 +636,8 @@ 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); +@@ -1051,6 +1058,8 @@ static int bcm_enet_open(struct net_devi + else + bcm_enet_adjust_link(dev); + ++ netdev_reset_queue(dev); ++ + netif_start_queue(dev); + return 0; + +@@ -2281,6 +2290,8 @@ static int bcm_enetsw_open(struct net_de + enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK, + ENETDMAC_IRMASK, priv->tx_chan); + ++ netdev_reset_queue(dev); ++ + netif_carrier_on(dev); + netif_start_queue(dev); + |