summaryrefslogtreecommitdiffstats
path: root/drivers/net/usb/smsc75xx.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/usb/smsc75xx.c')
-rw-r--r--drivers/net/usb/smsc75xx.c124
1 files changed, 44 insertions, 80 deletions
diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c
index 753ee6eb7ed..860a20c938b 100644
--- a/drivers/net/usb/smsc75xx.c
+++ b/drivers/net/usb/smsc75xx.c
@@ -65,7 +65,6 @@ struct smsc75xx_priv {
struct usbnet *dev;
u32 rfe_ctl;
u32 multicast_hash_table[DP_SEL_VHF_HASH_LEN];
- bool use_rx_csum;
struct mutex dataport_mutex;
spinlock_t rfe_ctl_lock;
struct work_struct set_multicast;
@@ -548,28 +547,6 @@ static void smsc75xx_status(struct usbnet *dev, struct urb *urb)
"unexpected interrupt, intdata=0x%08X", intdata);
}
-/* Enable or disable Rx checksum offload engine */
-static int smsc75xx_set_rx_csum_offload(struct usbnet *dev)
-{
- struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
- unsigned long flags;
- int ret;
-
- spin_lock_irqsave(&pdata->rfe_ctl_lock, flags);
-
- if (pdata->use_rx_csum)
- pdata->rfe_ctl |= RFE_CTL_TCPUDP_CKM | RFE_CTL_IP_CKM;
- else
- pdata->rfe_ctl &= ~(RFE_CTL_TCPUDP_CKM | RFE_CTL_IP_CKM);
-
- spin_unlock_irqrestore(&pdata->rfe_ctl_lock, flags);
-
- ret = smsc75xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl);
- check_warn_return(ret, "Error writing RFE_CTL");
-
- return 0;
-}
-
static int smsc75xx_ethtool_get_eeprom_len(struct net_device *net)
{
return MAX_EEPROM_SIZE;
@@ -599,34 +576,6 @@ static int smsc75xx_ethtool_set_eeprom(struct net_device *netdev,
return smsc75xx_write_eeprom(dev, ee->offset, ee->len, data);
}
-static u32 smsc75xx_ethtool_get_rx_csum(struct net_device *netdev)
-{
- struct usbnet *dev = netdev_priv(netdev);
- struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
-
- return pdata->use_rx_csum;
-}
-
-static int smsc75xx_ethtool_set_rx_csum(struct net_device *netdev, u32 val)
-{
- struct usbnet *dev = netdev_priv(netdev);
- struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
-
- pdata->use_rx_csum = !!val;
-
- return smsc75xx_set_rx_csum_offload(dev);
-}
-
-static int smsc75xx_ethtool_set_tso(struct net_device *netdev, u32 data)
-{
- if (data)
- netdev->features |= NETIF_F_TSO | NETIF_F_TSO6;
- else
- netdev->features &= ~(NETIF_F_TSO | NETIF_F_TSO6);
-
- return 0;
-}
-
static const struct ethtool_ops smsc75xx_ethtool_ops = {
.get_link = usbnet_get_link,
.nway_reset = usbnet_nway_reset,
@@ -638,12 +587,6 @@ static const struct ethtool_ops smsc75xx_ethtool_ops = {
.get_eeprom_len = smsc75xx_ethtool_get_eeprom_len,
.get_eeprom = smsc75xx_ethtool_get_eeprom,
.set_eeprom = smsc75xx_ethtool_set_eeprom,
- .get_tx_csum = ethtool_op_get_tx_csum,
- .set_tx_csum = ethtool_op_set_tx_hw_csum,
- .get_rx_csum = smsc75xx_ethtool_get_rx_csum,
- .set_rx_csum = smsc75xx_ethtool_set_rx_csum,
- .get_tso = ethtool_op_get_tso,
- .set_tso = smsc75xx_ethtool_set_tso,
};
static int smsc75xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
@@ -782,6 +725,30 @@ static int smsc75xx_change_mtu(struct net_device *netdev, int new_mtu)
return usbnet_change_mtu(netdev, new_mtu);
}
+/* Enable or disable Rx checksum offload engine */
+static int smsc75xx_set_features(struct net_device *netdev, u32 features)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
+ unsigned long flags;
+ int ret;
+
+ spin_lock_irqsave(&pdata->rfe_ctl_lock, flags);
+
+ if (features & NETIF_F_RXCSUM)
+ pdata->rfe_ctl |= RFE_CTL_TCPUDP_CKM | RFE_CTL_IP_CKM;
+ else
+ pdata->rfe_ctl &= ~(RFE_CTL_TCPUDP_CKM | RFE_CTL_IP_CKM);
+
+ spin_unlock_irqrestore(&pdata->rfe_ctl_lock, flags);
+ /* it's racing here! */
+
+ ret = smsc75xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl);
+ check_warn_return(ret, "Error writing RFE_CTL");
+
+ return 0;
+}
+
static int smsc75xx_reset(struct usbnet *dev)
{
struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
@@ -960,11 +927,7 @@ static int smsc75xx_reset(struct usbnet *dev)
netif_dbg(dev, ifup, dev->net, "RFE_CTL set to 0x%08x", pdata->rfe_ctl);
/* Enable or disable checksum offload engines */
- ethtool_op_set_tx_hw_csum(dev->net, DEFAULT_TX_CSUM_ENABLE);
- ret = smsc75xx_set_rx_csum_offload(dev);
- check_warn_return(ret, "Failed to set rx csum offload: %d", ret);
-
- smsc75xx_ethtool_set_tso(dev->net, DEFAULT_TSO_ENABLE);
+ smsc75xx_set_features(dev->net, dev->net->features);
smsc75xx_set_multicast(dev->net);
@@ -1037,6 +1000,7 @@ static const struct net_device_ops smsc75xx_netdev_ops = {
.ndo_validate_addr = eth_validate_addr,
.ndo_do_ioctl = smsc75xx_ioctl,
.ndo_set_multicast_list = smsc75xx_set_multicast,
+ .ndo_set_features = smsc75xx_set_features,
};
static int smsc75xx_bind(struct usbnet *dev, struct usb_interface *intf)
@@ -1065,10 +1029,17 @@ static int smsc75xx_bind(struct usbnet *dev, struct usb_interface *intf)
INIT_WORK(&pdata->set_multicast, smsc75xx_deferred_multicast_write);
- pdata->use_rx_csum = DEFAULT_RX_CSUM_ENABLE;
+ if (DEFAULT_TX_CSUM_ENABLE) {
+ dev->net->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
+ if (DEFAULT_TSO_ENABLE)
+ dev->net->features |= NETIF_F_SG |
+ NETIF_F_TSO | NETIF_F_TSO6;
+ }
+ if (DEFAULT_RX_CSUM_ENABLE)
+ dev->net->features |= NETIF_F_RXCSUM;
- /* We have to advertise SG otherwise TSO cannot be enabled */
- dev->net->features |= NETIF_F_SG;
+ dev->net->hw_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
+ NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_RXCSUM;
/* Init all registers */
ret = smsc75xx_reset(dev);
@@ -1091,10 +1062,11 @@ static void smsc75xx_unbind(struct usbnet *dev, struct usb_interface *intf)
}
}
-static void smsc75xx_rx_csum_offload(struct sk_buff *skb, u32 rx_cmd_a,
- u32 rx_cmd_b)
+static void smsc75xx_rx_csum_offload(struct usbnet *dev, struct sk_buff *skb,
+ u32 rx_cmd_a, u32 rx_cmd_b)
{
- if (unlikely(rx_cmd_a & RX_CMD_A_LCSM)) {
+ if (!(dev->net->features & NETIF_F_RXCSUM) ||
+ unlikely(rx_cmd_a & RX_CMD_A_LCSM)) {
skb->ip_summed = CHECKSUM_NONE;
} else {
skb->csum = ntohs((u16)(rx_cmd_b >> RX_CMD_B_CSUM_SHIFT));
@@ -1104,8 +1076,6 @@ static void smsc75xx_rx_csum_offload(struct sk_buff *skb, u32 rx_cmd_a,
static int smsc75xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
{
- struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
-
while (skb->len > 0) {
u32 rx_cmd_a, rx_cmd_b, align_count, size;
struct sk_buff *ax_skb;
@@ -1145,11 +1115,8 @@ static int smsc75xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
/* last frame in this batch */
if (skb->len == size) {
- if (pdata->use_rx_csum)
- smsc75xx_rx_csum_offload(skb, rx_cmd_a,
- rx_cmd_b);
- else
- skb->ip_summed = CHECKSUM_NONE;
+ smsc75xx_rx_csum_offload(dev, skb, rx_cmd_a,
+ rx_cmd_b);
skb_trim(skb, skb->len - 4); /* remove fcs */
skb->truesize = size + sizeof(struct sk_buff);
@@ -1167,11 +1134,8 @@ static int smsc75xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
ax_skb->data = packet;
skb_set_tail_pointer(ax_skb, size);
- if (pdata->use_rx_csum)
- smsc75xx_rx_csum_offload(ax_skb, rx_cmd_a,
- rx_cmd_b);
- else
- ax_skb->ip_summed = CHECKSUM_NONE;
+ smsc75xx_rx_csum_offload(dev, ax_skb, rx_cmd_a,
+ rx_cmd_b);
skb_trim(ax_skb, ax_skb->len - 4); /* remove fcs */
ax_skb->truesize = size + sizeof(struct sk_buff);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-19 05:30:06 +0000