bonding: move processing of recv handlers into handle_frame()
Since now when bonding uses rx_handler, all traffic going into bond
device goes thru bond_handle_frame. So there's no need to go back into
bonding code later via ptype handlers. This patch converts
original ptype handlers into "bonding receive probes". These functions
are called from bond_handle_frame and they are registered per-mode.
Note that vlan packets are also handled because they are always untagged
thanks to vlan_untag()
Note that this also allows arpmon for eth-bond-bridge-vlan topology.
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 4ce14bd..66d9dc6 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1439,27 +1439,17 @@
}
/* On bonding slaves other than the currently active slave, suppress
- * duplicates except for 802.3ad ETH_P_SLOW, alb non-mcast/bcast, and
- * ARP on active-backup slaves with arp_validate enabled.
+ * duplicates except for alb non-mcast/bcast.
*/
static bool bond_should_deliver_exact_match(struct sk_buff *skb,
struct slave *slave,
struct bonding *bond)
{
if (bond_is_slave_inactive(slave)) {
- if (slave_do_arp_validate(bond, slave) &&
- skb->protocol == __cpu_to_be16(ETH_P_ARP))
- return false;
-
if (bond->params.mode == BOND_MODE_ALB &&
skb->pkt_type != PACKET_BROADCAST &&
skb->pkt_type != PACKET_MULTICAST)
- return false;
-
- if (bond->params.mode == BOND_MODE_8023AD &&
- skb->protocol == __cpu_to_be16(ETH_P_SLOW))
return false;
-
return true;
}
return false;
@@ -1483,6 +1473,15 @@
if (bond->params.arp_interval)
slave->dev->last_rx = jiffies;
+ if (bond->recv_probe) {
+ struct sk_buff *nskb = skb_clone(skb, GFP_ATOMIC);
+
+ if (likely(nskb)) {
+ bond->recv_probe(nskb, bond, slave);
+ dev_kfree_skb(nskb);
+ }
+ }
+
if (bond_should_deliver_exact_match(skb, slave, bond)) {
return RX_HANDLER_EXACT;
}
@@ -2743,48 +2742,26 @@
}
}
-static int bond_arp_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev)
+static void bond_arp_rcv(struct sk_buff *skb, struct bonding *bond,
+ struct slave *slave)
{
struct arphdr *arp;
- struct slave *slave;
- struct bonding *bond;
unsigned char *arp_ptr;
__be32 sip, tip;
- if (dev->priv_flags & IFF_802_1Q_VLAN) {
- /*
- * When using VLANS and bonding, dev and oriv_dev may be
- * incorrect if the physical interface supports VLAN
- * acceleration. With this change ARP validation now
- * works for hosts only reachable on the VLAN interface.
- */
- dev = vlan_dev_real_dev(dev);
- orig_dev = dev_get_by_index_rcu(dev_net(skb->dev),skb->skb_iif);
- }
+ if (skb->protocol != __cpu_to_be16(ETH_P_ARP))
+ return;
- if (!(dev->priv_flags & IFF_BONDING) || !(dev->flags & IFF_MASTER))
- goto out;
-
- bond = netdev_priv(dev);
read_lock(&bond->lock);
- pr_debug("bond_arp_rcv: bond %s skb->dev %s orig_dev %s\n",
- bond->dev->name, skb->dev ? skb->dev->name : "NULL",
- orig_dev ? orig_dev->name : "NULL");
+ pr_debug("bond_arp_rcv: bond %s skb->dev %s\n",
+ bond->dev->name, skb->dev->name);
- slave = bond_get_slave_by_dev(bond, orig_dev);
- if (!slave || !slave_do_arp_validate(bond, slave))
- goto out_unlock;
-
- skb = skb_share_check(skb, GFP_ATOMIC);
- if (!skb)
- goto out_unlock;
-
- if (!pskb_may_pull(skb, arp_hdr_len(dev)))
+ if (!pskb_may_pull(skb, arp_hdr_len(bond->dev)))
goto out_unlock;
arp = arp_hdr(skb);
- if (arp->ar_hln != dev->addr_len ||
+ if (arp->ar_hln != bond->dev->addr_len ||
skb->pkt_type == PACKET_OTHERHOST ||
skb->pkt_type == PACKET_LOOPBACK ||
arp->ar_hrd != htons(ARPHRD_ETHER) ||
@@ -2793,9 +2770,9 @@
goto out_unlock;
arp_ptr = (unsigned char *)(arp + 1);
- arp_ptr += dev->addr_len;
+ arp_ptr += bond->dev->addr_len;
memcpy(&sip, arp_ptr, 4);
- arp_ptr += 4 + dev->addr_len;
+ arp_ptr += 4 + bond->dev->addr_len;
memcpy(&tip, arp_ptr, 4);
pr_debug("bond_arp_rcv: %s %s/%d av %d sv %d sip %pI4 tip %pI4\n",
@@ -2818,9 +2795,6 @@
out_unlock:
read_unlock(&bond->lock);
-out:
- dev_kfree_skb(skb);
- return NET_RX_SUCCESS;
}
/*
@@ -3407,48 +3381,6 @@
.notifier_call = bond_inetaddr_event,
};
-/*-------------------------- Packet type handling ---------------------------*/
-
-/* register to receive lacpdus on a bond */
-static void bond_register_lacpdu(struct bonding *bond)
-{
- struct packet_type *pk_type = &(BOND_AD_INFO(bond).ad_pkt_type);
-
- /* initialize packet type */
- pk_type->type = PKT_TYPE_LACPDU;
- pk_type->dev = bond->dev;
- pk_type->func = bond_3ad_lacpdu_recv;
-
- dev_add_pack(pk_type);
-}
-
-/* unregister to receive lacpdus on a bond */
-static void bond_unregister_lacpdu(struct bonding *bond)
-{
- dev_remove_pack(&(BOND_AD_INFO(bond).ad_pkt_type));
-}
-
-void bond_register_arp(struct bonding *bond)
-{
- struct packet_type *pt = &bond->arp_mon_pt;
-
- if (pt->type)
- return;
-
- pt->type = htons(ETH_P_ARP);
- pt->dev = bond->dev;
- pt->func = bond_arp_rcv;
- dev_add_pack(pt);
-}
-
-void bond_unregister_arp(struct bonding *bond)
-{
- struct packet_type *pt = &bond->arp_mon_pt;
-
- dev_remove_pack(pt);
- pt->type = 0;
-}
-
/*---------------------------- Hashing Policies -----------------------------*/
/*
@@ -3542,14 +3474,14 @@
queue_delayed_work(bond->wq, &bond->arp_work, 0);
if (bond->params.arp_validate)
- bond_register_arp(bond);
+ bond->recv_probe = bond_arp_rcv;
}
if (bond->params.mode == BOND_MODE_8023AD) {
INIT_DELAYED_WORK(&bond->ad_work, bond_3ad_state_machine_handler);
queue_delayed_work(bond->wq, &bond->ad_work, 0);
/* register to receive LACPDUs */
- bond_register_lacpdu(bond);
+ bond->recv_probe = bond_3ad_lacpdu_recv;
bond_3ad_initiate_agg_selection(bond, 1);
}
@@ -3560,14 +3492,6 @@
{
struct bonding *bond = netdev_priv(bond_dev);
- if (bond->params.mode == BOND_MODE_8023AD) {
- /* Unregister the receive of LACPDUs */
- bond_unregister_lacpdu(bond);
- }
-
- if (bond->params.arp_validate)
- bond_unregister_arp(bond);
-
write_lock_bh(&bond->lock);
/* signal timers not to re-arm */
@@ -3604,6 +3528,7 @@
*/
bond_alb_deinitialize(bond);
}
+ bond->recv_probe = NULL;
return 0;
}