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| author | Sieng Piaw Liew <liew.s.piaw@gmail.com> | 2020-11-02 11:12:19 +0800 |
|---|---|---|
| committer | Álvaro Fernández Rojas <noltari@gmail.com> | 2020-12-02 20:32:12 +0100 |
| commit | ba74da5b99a1e8239af896378fbbc68f8761cd15 (patch) | |
| tree | 026ce90cab152efc9764d120269784b57acba247 /target | |
| parent | eefbcf2915243bdedca37ba3df6bc505ffbc2e58 (diff) | |
| download | upstream-ba74da5b99a1e8239af896378fbbc68f8761cd15.tar.gz upstream-ba74da5b99a1e8239af896378fbbc68f8761cd15.tar.bz2 upstream-ba74da5b99a1e8239af896378fbbc68f8761cd15.zip | |
bcm63xx: enetsw: switch to netdev_alloc_skb_ip_align
Increases packet processing performance by 30%.
Tested on BCM6328 320 MHz and iperf3 -M 512 for packet/sec performance.
Before:
[ ID] Interval Transfer Bandwidth Retr
[ 4] 0.00-30.00 sec 120 MBytes 33.7 Mbits/sec 277 sender
[ 4] 0.00-30.00 sec 120 MBytes 33.5 Mbits/sec receiver
After:
[ ID] Interval Transfer Bandwidth Retr
[ 4] 0.00-30.00 sec 155 MBytes 43.3 Mbits/sec 354 sender
[ 4] 0.00-30.00 sec 154 MBytes 43.1 Mbits/sec receiver
Signed-off-by: Sieng Piaw Liew <liew.s.piaw@gmail.com>
[Merge patches, amend commit and add patch description]
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target')
| -rw-r--r-- | target/linux/bcm63xx/patches-5.4/441-bcm63xx_enet-alloc_rx_skb_ip_align.patch | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/target/linux/bcm63xx/patches-5.4/441-bcm63xx_enet-alloc_rx_skb_ip_align.patch b/target/linux/bcm63xx/patches-5.4/441-bcm63xx_enet-alloc_rx_skb_ip_align.patch new file mode 100644 index 0000000000..ade99beacc --- /dev/null +++ b/target/linux/bcm63xx/patches-5.4/441-bcm63xx_enet-alloc_rx_skb_ip_align.patch @@ -0,0 +1,37 @@ +From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 +From: Sieng Piaw Liew <liew.s.piaw@gmail.com> +Date: Mon, 30 Nov 2020 11:07:47 +0800 +Subject: [PATCH] bcm63xx: enetsw: switch to netdev_alloc_skb_ip_align + +Increases packet processing performance by 30%. +Tested on BCM6328 320 MHz and iperf3 -M 512 for packet/sec performance. + +Before: +[ ID] Interval Transfer Bandwidth Retr +[ 4] 0.00-30.00 sec 120 MBytes 33.7 Mbits/sec 277 sender +[ 4] 0.00-30.00 sec 120 MBytes 33.5 Mbits/sec receiver + +After: +[ ID] Interval Transfer Bandwidth Retr +[ 4] 0.00-30.00 sec 155 MBytes 43.3 Mbits/sec 354 sender +[ 4] 0.00-30.00 sec 154 MBytes 43.1 Mbits/sec receiver + +Signed-off-by: Sieng Piaw Liew <liew.s.piaw@gmail.com> +--- + drivers/net/ethernet/broadcom/bcm63xx_enet.c | 6 +++++- + 1 file changed, 4 insertions(+), 1 deletion(-) + +--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c ++++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c +@@ -239,7 +239,10 @@ static int bcm_enet_refill_rx(struct net + desc = &priv->rx_desc_cpu[desc_idx]; + + if (!priv->rx_skb[desc_idx]) { +- skb = netdev_alloc_skb(dev, priv->rx_skb_size); ++ if (priv->enet_is_sw) ++ skb = netdev_alloc_skb_ip_align(dev, priv->rx_skb_size); ++ else ++ skb = netdev_alloc_skb(dev, priv->rx_skb_size); + if (!skb) + break; + priv->rx_skb[desc_idx] = skb; |