* Authors:
* Lennert Buytenhek <buytenh@gnu.org>
*
- * $Id: br_device.c,v 1.6 2001/12/24 00:59:55 davem Exp $
- *
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
#include <linux/kernel.h>
#include <linux/netdevice.h>
-#include <linux/module.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+
#include <asm/uaccess.h>
#include "br_private.h"
-static struct net_device_stats *br_dev_get_stats(struct net_device *dev)
-{
- struct net_bridge *br;
-
- br = dev->priv;
-
- return &br->statistics;
-}
-
-int br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
+/* net device transmit always called with no BH (preempt_disabled) */
+netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct net_bridge *br = netdev_priv(dev);
const unsigned char *dest = skb->data;
struct net_bridge_fdb_entry *dst;
- br->statistics.tx_packets++;
- br->statistics.tx_bytes += skb->len;
+ dev->stats.tx_packets++;
+ dev->stats.tx_bytes += skb->len;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb_pull(skb, ETH_HLEN);
- rcu_read_lock();
- if (dest[0] & 1)
- br_flood_deliver(br, skb, 0);
+ if (dest[0] & 1)
+ br_flood_deliver(br, skb);
else if ((dst = __br_fdb_get(br, dest)) != NULL)
br_deliver(dst->dst, skb);
else
- br_flood_deliver(br, skb, 0);
+ br_flood_deliver(br, skb);
- rcu_read_unlock();
- return 0;
+ return NETDEV_TX_OK;
}
static int br_dev_open(struct net_device *dev)
{
- netif_start_queue(dev);
+ struct net_bridge *br = netdev_priv(dev);
- br_stp_enable_bridge(dev->priv);
+ br_features_recompute(br);
+ netif_start_queue(dev);
+ br_stp_enable_bridge(br);
return 0;
}
static int br_dev_stop(struct net_device *dev)
{
- br_stp_disable_bridge(dev->priv);
+ br_stp_disable_bridge(netdev_priv(dev));
netif_stop_queue(dev);
static int br_change_mtu(struct net_device *dev, int new_mtu)
{
- if ((new_mtu < 68) || new_mtu > br_min_mtu(dev->priv))
+ struct net_bridge *br = netdev_priv(dev);
+ if (new_mtu < 68 || new_mtu > br_min_mtu(br))
return -EINVAL;
dev->mtu = new_mtu;
+
+#ifdef CONFIG_BRIDGE_NETFILTER
+ /* remember the MTU in the rtable for PMTU */
+ br->fake_rtable.u.dst.metrics[RTAX_MTU - 1] = new_mtu;
+#endif
+
return 0;
}
-void br_dev_setup(struct net_device *dev)
+/* Allow setting mac address to any valid ethernet address. */
+static int br_set_mac_address(struct net_device *dev, void *p)
{
- memset(dev->dev_addr, 0, ETH_ALEN);
+ struct net_bridge *br = netdev_priv(dev);
+ struct sockaddr *addr = p;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EINVAL;
+ spin_lock_bh(&br->lock);
+ memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
+ br_stp_change_bridge_id(br, addr->sa_data);
+ br->flags |= BR_SET_MAC_ADDR;
+ spin_unlock_bh(&br->lock);
+
+ return 0;
+}
+
+static void br_getinfo(struct net_device *dev, struct ethtool_drvinfo *info)
+{
+ strcpy(info->driver, "bridge");
+ strcpy(info->version, BR_VERSION);
+ strcpy(info->fw_version, "N/A");
+ strcpy(info->bus_info, "N/A");
+}
+
+static int br_set_sg(struct net_device *dev, u32 data)
+{
+ struct net_bridge *br = netdev_priv(dev);
+
+ if (data)
+ br->feature_mask |= NETIF_F_SG;
+ else
+ br->feature_mask &= ~NETIF_F_SG;
+
+ br_features_recompute(br);
+ return 0;
+}
+
+static int br_set_tso(struct net_device *dev, u32 data)
+{
+ struct net_bridge *br = netdev_priv(dev);
+
+ if (data)
+ br->feature_mask |= NETIF_F_TSO;
+ else
+ br->feature_mask &= ~NETIF_F_TSO;
+
+ br_features_recompute(br);
+ return 0;
+}
+
+static int br_set_tx_csum(struct net_device *dev, u32 data)
+{
+ struct net_bridge *br = netdev_priv(dev);
+
+ if (data)
+ br->feature_mask |= NETIF_F_NO_CSUM;
+ else
+ br->feature_mask &= ~NETIF_F_ALL_CSUM;
+
+ br_features_recompute(br);
+ return 0;
+}
+
+static const struct ethtool_ops br_ethtool_ops = {
+ .get_drvinfo = br_getinfo,
+ .get_link = ethtool_op_get_link,
+ .get_tx_csum = ethtool_op_get_tx_csum,
+ .set_tx_csum = br_set_tx_csum,
+ .get_sg = ethtool_op_get_sg,
+ .set_sg = br_set_sg,
+ .get_tso = ethtool_op_get_tso,
+ .set_tso = br_set_tso,
+ .get_ufo = ethtool_op_get_ufo,
+ .set_ufo = ethtool_op_set_ufo,
+ .get_flags = ethtool_op_get_flags,
+};
+
+static const struct net_device_ops br_netdev_ops = {
+ .ndo_open = br_dev_open,
+ .ndo_stop = br_dev_stop,
+ .ndo_start_xmit = br_dev_xmit,
+ .ndo_set_mac_address = br_set_mac_address,
+ .ndo_set_multicast_list = br_dev_set_multicast_list,
+ .ndo_change_mtu = br_change_mtu,
+ .ndo_do_ioctl = br_dev_ioctl,
+};
+
+void br_dev_setup(struct net_device *dev)
+{
+ random_ether_addr(dev->dev_addr);
ether_setup(dev);
- dev->do_ioctl = br_dev_ioctl;
- dev->get_stats = br_dev_get_stats;
- dev->hard_start_xmit = br_dev_xmit;
- dev->open = br_dev_open;
- dev->set_multicast_list = br_dev_set_multicast_list;
- dev->change_mtu = br_change_mtu;
+ dev->netdev_ops = &br_netdev_ops;
dev->destructor = free_netdev;
- SET_MODULE_OWNER(dev);
- dev->stop = br_dev_stop;
+ SET_ETHTOOL_OPS(dev, &br_ethtool_ops);
dev->tx_queue_len = 0;
- dev->set_mac_address = NULL;
dev->priv_flags = IFF_EBRIDGE;
+
+ dev->features = NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_HIGHDMA |
+ NETIF_F_GSO_MASK | NETIF_F_NO_CSUM | NETIF_F_LLTX |
+ NETIF_F_NETNS_LOCAL | NETIF_F_GSO;
}