[PATCH] sk98lin: allow ethtool checksum on/off per port

Allow control of checksumming parameters via ethtool.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

1 files changed, 48 insertions, 0 deletions

diff --git a/drivers/net/sk98lin/skethtool.c b/drivers/net/sk98lin/skethtool.c
index b71769ae4603..4265ed91a9c4 100644
--- a/drivers/net/sk98lin/skethtool.c
+++ b/drivers/net/sk98lin/skethtool.c
@@ -539,6 +539,48 @@ static int setPauseParams(struct net_device *dev , struct ethtool_pauseparam *ep
         return ret ? -EIO : 0;
 }
 
+/* Only Yukon supports checksum offload. */
+static int setScatterGather(struct net_device *dev, u32 data)
+{
+        DEV_NET *pNet = netdev_priv(dev);
+        SK_AC *pAC = pNet->pAC;
+
+        if (pAC->GIni.GIChipId == CHIP_ID_GENESIS)
+                return -EOPNOTSUPP;
+        return ethtool_op_set_sg(dev, data);
+}
+
+static int setTxCsum(struct net_device *dev, u32 data)
+{
+        DEV_NET *pNet = netdev_priv(dev);
+        SK_AC *pAC = pNet->pAC;
+
+        if (pAC->GIni.GIChipId == CHIP_ID_GENESIS)
+                return -EOPNOTSUPP;
+
+        return ethtool_op_set_tx_csum(dev, data);
+}
+
+static u32 getRxCsum(struct net_device *dev)
+{
+        DEV_NET *pNet = netdev_priv(dev);
+        SK_AC *pAC = pNet->pAC;
+
+        return pAC->RxPort[pNet->PortNr].RxCsum;
+}
+
+static int setRxCsum(struct net_device *dev, u32 data)
+{
+        DEV_NET *pNet = netdev_priv(dev);
+        SK_AC *pAC = pNet->pAC;
+
+        if (pAC->GIni.GIChipId == CHIP_ID_GENESIS)
+                return -EOPNOTSUPP;
+
+        pAC->RxPort[pNet->PortNr].RxCsum = data != 0;
+        return 0;
+}
+
 struct ethtool_ops SkGeEthtoolOps = {
         .get_settings           = getSettings,
         .set_settings           = setSettings,
@@ -551,4 +593,10 @@ struct ethtool_ops SkGeEthtoolOps = {
         .set_pauseparam         = setPauseParams,
         .get_link               = ethtool_op_get_link,
         .get_perm_addr          = ethtool_op_get_perm_addr,
+        .get_sg                 = ethtool_op_get_sg,
+        .set_sg                 = setScatterGather,
+        .get_tx_csum            = ethtool_op_get_tx_csum,
+        .set_tx_csum            = setTxCsum,
+        .get_rx_csum            = getRxCsum,
+        .set_rx_csum            = setRxCsum,
 };