modules/mqnic: Update ethtool rxfh APIs for kernel 6.8

Signed-off-by: Alex Forencich <alex@alexforencich.com>

modules/mqnic/mqnic_ethtool.c

@@ -201,6 +201,48 @@ static u32 mqnic_get_rxfh_indir_size(struct net_device *ndev)
 	return priv->rx_queue_map_indir_table_size;
 }
 
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 8, 0)
+static int mqnic_get_rxfh(struct net_device *ndev, struct ethtool_rxfh_param *rxfh)
+{
+	struct mqnic_priv *priv = netdev_priv(ndev);
+	int k;
+
+	if (rxfh->hfunc)
+		rxfh->hfunc = ETH_RSS_HASH_TOP;
+
+	rxfh->indir_size = priv->rx_queue_map_indir_table_size;
+	if (rxfh->indir)
+		for (k = 0; k < priv->rx_queue_map_indir_table_size; k++)
+			rxfh->indir[k] = priv->rx_queue_map_indir_table[k];
+
+	return 0;
+}
+
+static int mqnic_set_rxfh(struct net_device *ndev, struct ethtool_rxfh_param *rxfh,
+		struct netlink_ext_ack *extack)
+{
+	struct mqnic_priv *priv = netdev_priv(ndev);
+	int k;
+
+	if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE && rxfh->hfunc != ETH_RSS_HASH_TOP)
+		return -EOPNOTSUPP;
+
+	if (!rxfh->indir)
+		return 0;
+
+	if (rxfh->indir) {
+		for (k = 0; k < priv->rx_queue_map_indir_table_size; k++) {
+			if (rxfh->indir[k] >= priv->rxq_count)
+				return -EINVAL;
+		}
+
+		for (k = 0; k < priv->rx_queue_map_indir_table_size; k++)
+			priv->rx_queue_map_indir_table[k] = rxfh->indir[k];
+	}
+
+	return mqnic_update_indir_table(ndev);
+}
+#else
 static int mqnic_get_rxfh(struct net_device *ndev, u32 *indir, u8 *key,
 		u8 *hfunc)
 {
@@ -241,6 +283,7 @@ static int mqnic_set_rxfh(struct net_device *ndev, const u32 *indir,
 
 	return mqnic_update_indir_table(ndev);
 }
+#endif
 
 static void mqnic_get_channels(struct net_device *ndev,
 		struct ethtool_channels *channel)