mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-27 17:18:59 +00:00
bca663f20f
Performance comparison (iperf3, mtu 1500): Before: 53.9 Mbps After: 87.9 Mbps The tests were performed on a BT Home Hub 5A router. The iperf3 server was running on the router, the client on the host. Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
69 lines
2.2 KiB
Diff
69 lines
2.2 KiB
Diff
From 16b1c4e01c89ba07367461e0bc4cb84993c2d027 Mon Sep 17 00:00:00 2001
|
|
From: Jacky Chou <jackychou@asix.com.tw>
|
|
Date: Mon, 15 Nov 2021 11:49:41 +0800
|
|
Subject: [PATCH] net: usb: ax88179_178a: add TSO feature
|
|
|
|
On low-effciency embedded platforms, transmission performance is poor
|
|
due to on Bulk-out with single packet.
|
|
Adding TSO feature improves the transmission performance and reduces
|
|
the number of interrupt caused by Bulk-out complete.
|
|
|
|
Reference to module, net: usb: aqc111.
|
|
|
|
Signed-off-by: Jacky Chou <jackychou@asix.com.tw>
|
|
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
---
|
|
drivers/net/usb/ax88179_178a.c | 17 +++++++++++------
|
|
1 file changed, 11 insertions(+), 6 deletions(-)
|
|
|
|
--- a/drivers/net/usb/ax88179_178a.c
|
|
+++ b/drivers/net/usb/ax88179_178a.c
|
|
@@ -1377,11 +1377,12 @@ static int ax88179_bind(struct usbnet *d
|
|
dev->mii.phy_id = 0x03;
|
|
dev->mii.supports_gmii = 1;
|
|
|
|
- dev->net->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
|
|
- NETIF_F_RXCSUM;
|
|
+ dev->net->features |= NETIF_F_SG | NETIF_F_IP_CSUM |
|
|
+ NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM | NETIF_F_TSO;
|
|
|
|
- dev->net->hw_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
|
|
- NETIF_F_RXCSUM;
|
|
+ dev->net->hw_features |= dev->net->features;
|
|
+
|
|
+ netif_set_gso_max_size(dev->net, 16384);
|
|
|
|
/* Enable checksum offload */
|
|
*tmp = AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP |
|
|
@@ -1587,17 +1588,19 @@ ax88179_tx_fixup(struct usbnet *dev, str
|
|
{
|
|
u32 tx_hdr1, tx_hdr2;
|
|
int frame_size = dev->maxpacket;
|
|
- int mss = skb_shinfo(skb)->gso_size;
|
|
int headroom;
|
|
void *ptr;
|
|
|
|
tx_hdr1 = skb->len;
|
|
- tx_hdr2 = mss;
|
|
+ tx_hdr2 = skb_shinfo(skb)->gso_size; /* Set TSO mss */
|
|
if (((skb->len + 8) % frame_size) == 0)
|
|
tx_hdr2 |= 0x80008000; /* Enable padding */
|
|
|
|
headroom = skb_headroom(skb) - 8;
|
|
|
|
+ if ((dev->net->features & NETIF_F_SG) && skb_linearize(skb))
|
|
+ return NULL;
|
|
+
|
|
if ((skb_header_cloned(skb) || headroom < 0) &&
|
|
pskb_expand_head(skb, headroom < 0 ? 8 : 0, 0, GFP_ATOMIC)) {
|
|
dev_kfree_skb_any(skb);
|
|
@@ -1608,6 +1611,8 @@ ax88179_tx_fixup(struct usbnet *dev, str
|
|
put_unaligned_le32(tx_hdr1, ptr);
|
|
put_unaligned_le32(tx_hdr2, ptr + 4);
|
|
|
|
+ usbnet_set_skb_tx_stats(skb, (skb_shinfo(skb)->gso_segs ?: 1), 0);
|
|
+
|
|
return skb;
|
|
}
|
|
|