1 files changed, 38 insertions, 10 deletions

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index e4a4714..08879d5 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -175,6 +175,7 @@ struct bond_parm_tbl bond_mode_tbl[] = {
 struct bond_parm_tbl xmit_hashtype_tbl[] = {
 {	"layer2",		BOND_XMIT_POLICY_LAYER2},
 {	"layer3+4",		BOND_XMIT_POLICY_LAYER34},
+{	"layer2+3",		BOND_XMIT_POLICY_LAYER23},
 {	NULL,			-1},
 };
 
@@ -3605,6 +3606,24 @@ void bond_unregister_arp(struct bonding *bond)
 /*---------------------------- Hashing Policies -----------------------------*/
 
 /*
+ * Hash for the output device based upon layer 2 and layer 3 data. If
+ * the packet is not IP mimic bond_xmit_hash_policy_l2()
+ */
+static int bond_xmit_hash_policy_l23(struct sk_buff *skb,
+				     struct net_device *bond_dev, int count)
+{
+	struct ethhdr *data = (struct ethhdr *)skb->data;
+	struct iphdr *iph = ip_hdr(skb);
+
+	if (skb->protocol == __constant_htons(ETH_P_IP)) {
+		return ((ntohl(iph->saddr ^ iph->daddr) & 0xffff) ^
+			(data->h_dest[5] ^ bond_dev->dev_addr[5])) % count;
+	}
+
+	return (data->h_dest[5] ^ bond_dev->dev_addr[5]) % count;
+}
+
+/*
  * Hash for the output device based upon layer 3 and layer 4 data. If
  * the packet is a frag or not TCP or UDP, just use layer 3 data.  If it is
  * altogether not IP, mimic bond_xmit_hash_policy_l2()
@@ -4306,6 +4325,22 @@ out:
 
 /*------------------------- Device initialization ---------------------------*/
 
+static void bond_set_xmit_hash_policy(struct bonding *bond)
+{
+	switch (bond->params.xmit_policy) {
+	case BOND_XMIT_POLICY_LAYER23:
+		bond->xmit_hash_policy = bond_xmit_hash_policy_l23;
+		break;
+	case BOND_XMIT_POLICY_LAYER34:
+		bond->xmit_hash_policy = bond_xmit_hash_policy_l34;
+		break;
+	case BOND_XMIT_POLICY_LAYER2:
+	default:
+		bond->xmit_hash_policy = bond_xmit_hash_policy_l2;
+		break;
+	}
+}
+
 /*
  * set bond mode specific net device operations
  */
@@ -4322,10 +4357,7 @@ void bond_set_mode_ops(struct bonding *bond, int mode)
 		break;
 	case BOND_MODE_XOR:
 		bond_dev->hard_start_xmit = bond_xmit_xor;
-		if (bond->params.xmit_policy == BOND_XMIT_POLICY_LAYER34)
-			bond->xmit_hash_policy = bond_xmit_hash_policy_l34;
-		else
-			bond->xmit_hash_policy = bond_xmit_hash_policy_l2;
+		bond_set_xmit_hash_policy(bond);
 		break;
 	case BOND_MODE_BROADCAST:
 		bond_dev->hard_start_xmit = bond_xmit_broadcast;
@@ -4333,10 +4365,7 @@ void bond_set_mode_ops(struct bonding *bond, int mode)
 	case BOND_MODE_8023AD:
 		bond_set_master_3ad_flags(bond);
 		bond_dev->hard_start_xmit = bond_3ad_xmit_xor;
-		if (bond->params.xmit_policy == BOND_XMIT_POLICY_LAYER34)
-			bond->xmit_hash_policy = bond_xmit_hash_policy_l34;
-		else
-			bond->xmit_hash_policy = bond_xmit_hash_policy_l2;
+		bond_set_xmit_hash_policy(bond);
 		break;
 	case BOND_MODE_ALB:
 		bond_set_master_alb_flags(bond);
@@ -4498,8 +4527,7 @@ int bond_parse_parm(char *mode_arg, struct bond_parm_tbl *tbl)
 	for (i = 0; tbl[i].modename; i++) {
 		if ((isdigit(*mode_arg) &&
 		     tbl[i].mode == simple_strtol(mode_arg, NULL, 0)) ||
-		    (strncmp(mode_arg, tbl[i].modename,
-			     strlen(tbl[i].modename)) == 0)) {
+		    (strcmp(mode_arg, tbl[i].modename) == 0)) {
 			return tbl[i].mode;
 		}
 	}