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Commit 6649d2a6 authored by Dmitry Bezrukov's avatar Dmitry Bezrukov Committed by David S. Miller
Browse files

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



Signed-off-by: default avatarDmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: default avatarIgor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a4017cc2

drivers/net/usb/aqc111.c

+44 −1
Original line number Diff line number Diff line
@@ -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;
@@ -755,6 +797,7 @@ 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);

		if (aqc111_data->rx_checksum)

			aqc111_rx_checksum(new_skb, pkt_desc);



		usbnet_skb_return(dev, new_skb);

drivers/net/usb/aqc111.h

+1 −0
Original line number Diff line number Diff line
@@ -138,6 +138,7 @@ 
/******************************************************************************/



struct aqc111_data {

	u8 rx_checksum;

	u8 link_speed;

	u8 link;

	u8 autoneg;