diff options
| author | Jacky Chou <jackychou@asix.com.tw> | 2021-11-15 11:49:41 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-11-15 14:16:51 +0000 |
| commit | 16b1c4e01c89ba07367461e0bc4cb84993c2d027 (patch) | |
| tree | 09d5ea666b881647625642f72d8a74677c598c1c /drivers/net/usb/ax88179_178a.c | |
| parent | 71812af7234f30362b43ccff33f93890ae4c0655 (diff) | |
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>
Diffstat (limited to 'drivers/net/usb/ax88179_178a.c')
| -rw-r--r-- | drivers/net/usb/ax88179_178a.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c index ea8aa8c33241..1a627ba4b850 100644 --- a/drivers/net/usb/ax88179_178a.c +++ b/drivers/net/usb/ax88179_178a.c @@ -1377,11 +1377,12 @@ static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf) 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 | @@ -1526,17 +1527,19 @@ ax88179_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags) { 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); @@ -1547,6 +1550,8 @@ ax88179_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags) 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; } |