openwrt/target/linux/generic/backport-5.15/797-v5.17-net-usb-ax88179_178a-add-TSO-feature.patch
Hauke Mehrtens 1fae75ebd9 kernel: bump 5.15 to 5.15.158
Removed because they are upstream:
   generic/backport-5.15/702-v5.19-01-arm64-dts-mediatek-mt7622-add-support-for-coherent-D.patch
   https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.15.y&id=506ac5538498717fce699feaddb2ed97ae1c3ca7

   generic/backport-5.15/702-v5.19-04-arm64-dts-mediatek-mt7622-introduce-nodes-for-Wirele.patch
   https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.15.y&id=2f83d3d2cc3c0df89f833cd8c09989187f0c3ce1

Manually adapted:
   generic/pending-5.15/680-NET-skip-GRO-for-foreign-MAC-addresses.patch

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2024-05-12 12:16:18 +02:00

69 lines
2.1 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
@@ -1333,11 +1333,12 @@ 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);
ax88179_reset(dev);
@@ -1502,17 +1503,19 @@ 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);
@@ -1523,6 +1526,8 @@ 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;
}