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net: usb: aqc111: Add support for enable/disable checksum offload 

Signed-off-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dmitry Bezrukov 2018-11-26 09:33:26 +00:00 committed by David S. Miller
parent a4017cc264
commit 6649d2a6c4
2 changed files with 45 additions and 1 deletions
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45
drivers/net/usb/aqc111.c
View File

@ -261,6 +261,46 @@ static int aqc111_set_mac_addr(struct net_device *net, void *p)
ETH_ALEN, net->dev_addr);
}
static int aqc111_set_features(struct net_device *net,
netdev_features_t features)
{
struct usbnet *dev = netdev_priv(net);
struct aqc111_data *aqc111_data = dev->driver_priv;
netdev_features_t changed = net->features ^ features;
u8 reg8 = 0;
if (changed & NETIF_F_IP_CSUM) {
aqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL, 1, 1, &reg8);
reg8 ^= SFR_TXCOE_TCP | SFR_TXCOE_UDP;
aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL,
1, 1, &reg8);
}
if (changed & NETIF_F_IPV6_CSUM) {
aqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL, 1, 1, &reg8);
reg8 ^= SFR_TXCOE_TCPV6 | SFR_TXCOE_UDPV6;
aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL,
1, 1, &reg8);
}
if (changed & NETIF_F_RXCSUM) {
aqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_RXCOE_CTL, 1, 1, &reg8);
if (features & NETIF_F_RXCSUM) {
aqc111_data->rx_checksum = 1;
reg8 &= ~(SFR_RXCOE_IP | SFR_RXCOE_TCP | SFR_RXCOE_UDP |
SFR_RXCOE_TCPV6 | SFR_RXCOE_UDPV6);
} else {
aqc111_data->rx_checksum = 0;
reg8 |= SFR_RXCOE_IP | SFR_RXCOE_TCP | SFR_RXCOE_UDP |
SFR_RXCOE_TCPV6 | SFR_RXCOE_UDPV6;
}
aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_RXCOE_CTL,
1, 1, &reg8);
}
return 0;
}
static const struct net_device_ops aqc111_netdev_ops = {
.ndo_open = usbnet_open,
.ndo_stop = usbnet_stop,
@ -270,6 +310,7 @@ static const struct net_device_ops aqc111_netdev_ops = {
.ndo_change_mtu = aqc111_change_mtu,
.ndo_set_mac_address = aqc111_set_mac_addr,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_features = aqc111_set_features,
};
static int aqc111_read_perm_mac(struct usbnet *dev)
@ -680,6 +721,7 @@ static void aqc111_rx_checksum(struct sk_buff *skb, u64 pkt_desc)
static int aqc111_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
{
struct aqc111_data *aqc111_data = dev->driver_priv;
struct sk_buff *new_skb = NULL;
u32 pkt_total_offset = 0;
u64 *pkt_desc_ptr = NULL;
@ -755,7 +797,8 @@ static int aqc111_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
skb_set_tail_pointer(new_skb, new_skb->len);
new_skb->truesize = SKB_TRUESIZE(new_skb->len);
aqc111_rx_checksum(new_skb, pkt_desc);
if (aqc111_data->rx_checksum)
aqc111_rx_checksum(new_skb, pkt_desc);
usbnet_skb_return(dev, new_skb);
if (pkt_count == 0)

1
drivers/net/usb/aqc111.h
View File

@ -138,6 +138,7 @@
/******************************************************************************/
struct aqc111_data {
u8 rx_checksum;
u8 link_speed;
u8 link;
u8 autoneg;