diff options
| author |   Dmitry Bezrukov <dmitry.bezrukov@aquantia.com> | 2018-11-26 09:33:26 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-11-27 15:46:07 -0800 |
| commit | 6649d2a6c43298552db5aa09e522f821cda0b5e0 (patch) | |
| tree | a8046610188d51974087dd034ee162b1f1a8da2b /drivers/net/usb | |
| parent | net: usb: aqc111: Add support for changing MTU (diff) | |
| download | linux-dev-6649d2a6c43298552db5aa09e522f821cda0b5e0.tar.xz linux-dev-6649d2a6c43298552db5aa09e522f821cda0b5e0.zip | |
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>
Diffstat (limited to 'drivers/net/usb')
| -rw-r--r-- | drivers/net/usb/aqc111.c | 45 | ||||
| -rw-r--r-- | drivers/net/usb/aqc111.h | 1 |
2 files changed, 45 insertions, 1 deletions
diff --git a/drivers/net/usb/aqc111.c b/drivers/net/usb/aqc111.c index 641e68ee017a..7b69d0a5fc4c 100644 --- a/drivers/net/usb/aqc111.c +++ b/drivers/net/usb/aqc111.c @@ -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, ®8); + reg8 ^= SFR_TXCOE_TCP | SFR_TXCOE_UDP; + aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL, + 1, 1, ®8); + } + + if (changed & NETIF_F_IPV6_CSUM) { + aqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL, 1, 1, ®8); + reg8 ^= SFR_TXCOE_TCPV6 | SFR_TXCOE_UDPV6; + aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL, + 1, 1, ®8); + } + + if (changed & NETIF_F_RXCSUM) { + aqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_RXCOE_CTL, 1, 1, ®8); + 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, ®8); + } + 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) diff --git a/drivers/net/usb/aqc111.h b/drivers/net/usb/aqc111.h index ff43443bfd72..165cdb8b022c 100644 --- a/drivers/net/usb/aqc111.h +++ b/drivers/net/usb/aqc111.h @@ -138,6 +138,7 @@ /******************************************************************************/ struct aqc111_data { + u8 rx_checksum; u8 link_speed; u8 link; u8 autoneg; |