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authorMahesh Bandewar <maheshb@google.com>2014-04-22 16:30:20 -0700
committerDavid S. Miller <davem@davemloft.net>2014-04-24 13:04:34 -0400
commitf05b42eaa22cd7c6736d31316e6046c5127f8721 (patch)
tree6fd62e6c2969c4a159a93d494903e91a5eb254f5
parent9a49aba1ad7bb7351f1878155f3e8c6719b5e751 (diff)
downloadop-kernel-dev-f05b42eaa22cd7c6736d31316e6046c5127f8721.zip
op-kernel-dev-f05b42eaa22cd7c6736d31316e6046c5127f8721.tar.gz
bonding: Added bond_tlb_xmit() for tlb mode.
Re-organized the xmit function for the lb mode separating tlb xmit from the alb mode. This will enable use of the hashing policies like 802.3ad mode. Also extended use of xmit-hash-policy to tlb mode. Now the tlb-mode defaults to BOND_XMIT_POLICY_LAYER2 if the xmit policy module parameter is not set (just like 802.3ad, or Xor mode). Change-Id: I140257403d272df75f477b380207338d0f04963e Signed-off-by: Mahesh Bandewar <maheshb@google.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--Documentation/networking/bonding.txt2
-rw-r--r--drivers/net/bonding/bond_alb.c26
-rw-r--r--drivers/net/bonding/bond_alb.h1
-rw-r--r--drivers/net/bonding/bond_main.c6
-rw-r--r--drivers/net/bonding/bond_options.c2
5 files changed, 33 insertions, 4 deletions
diff --git a/Documentation/networking/bonding.txt b/Documentation/networking/bonding.txt
index a383c00..a97c567 100644
--- a/Documentation/networking/bonding.txt
+++ b/Documentation/networking/bonding.txt
@@ -769,7 +769,7 @@ use_carrier
xmit_hash_policy
Selects the transmit hash policy to use for slave selection in
- balance-xor and 802.3ad modes. Possible values are:
+ balance-xor, 802.3ad, and tlb modes. Possible values are:
layer2
diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index 5cd3601..153232e 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -1381,6 +1381,32 @@ out:
return NETDEV_TX_OK;
}
+int bond_tlb_xmit(struct sk_buff *skb, struct net_device *bond_dev)
+{
+ struct bonding *bond = netdev_priv(bond_dev);
+ struct ethhdr *eth_data;
+ struct slave *tx_slave = NULL;
+ u32 hash_index;
+
+ skb_reset_mac_header(skb);
+ eth_data = eth_hdr(skb);
+
+ /* Do not TX balance any multicast or broadcast */
+ if (!is_multicast_ether_addr(eth_data->h_dest)) {
+ switch (skb->protocol) {
+ case htons(ETH_P_IP):
+ case htons(ETH_P_IPX):
+ /* In case of IPX, it will falback to L2 hash */
+ case htons(ETH_P_IPV6):
+ hash_index = bond_xmit_hash(bond, skb);
+ tx_slave = tlb_choose_channel(bond, hash_index & 0xFF, skb->len);
+ break;
+ }
+ }
+
+ return bond_do_alb_xmit(skb, bond, tx_slave);
+}
+
int bond_alb_xmit(struct sk_buff *skb, struct net_device *bond_dev)
{
struct bonding *bond = netdev_priv(bond_dev);
diff --git a/drivers/net/bonding/bond_alb.h b/drivers/net/bonding/bond_alb.h
index e09dd4bf..5fc76c0 100644
--- a/drivers/net/bonding/bond_alb.h
+++ b/drivers/net/bonding/bond_alb.h
@@ -175,6 +175,7 @@ void bond_alb_deinit_slave(struct bonding *bond, struct slave *slave);
void bond_alb_handle_link_change(struct bonding *bond, struct slave *slave, char link);
void bond_alb_handle_active_change(struct bonding *bond, struct slave *new_slave);
int bond_alb_xmit(struct sk_buff *skb, struct net_device *bond_dev);
+int bond_tlb_xmit(struct sk_buff *skb, struct net_device *bond_dev);
void bond_alb_monitor(struct work_struct *);
int bond_alb_set_mac_address(struct net_device *bond_dev, void *addr);
void bond_alb_clear_vlan(struct bonding *bond, unsigned short vlan_id);
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index c704635..1fd32a1 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -3774,8 +3774,9 @@ static netdev_tx_t __bond_start_xmit(struct sk_buff *skb, struct net_device *dev
case BOND_MODE_8023AD:
return bond_3ad_xmit_xor(skb, dev);
case BOND_MODE_ALB:
- case BOND_MODE_TLB:
return bond_alb_xmit(skb, dev);
+ case BOND_MODE_TLB:
+ return bond_tlb_xmit(skb, dev);
default:
/* Should never happen, mode already checked */
pr_err("%s: Error: Unknown bonding mode %d\n",
@@ -3996,7 +3997,8 @@ static int bond_check_params(struct bond_params *params)
if (xmit_hash_policy) {
if ((bond_mode != BOND_MODE_XOR) &&
- (bond_mode != BOND_MODE_8023AD)) {
+ (bond_mode != BOND_MODE_8023AD) &&
+ (bond_mode != BOND_MODE_TLB)) {
pr_info("xmit_hash_policy param is irrelevant in mode %s\n",
bond_mode_name(bond_mode));
} else {
diff --git a/drivers/net/bonding/bond_options.c b/drivers/net/bonding/bond_options.c
index 724e30f..dc38938 100644
--- a/drivers/net/bonding/bond_options.c
+++ b/drivers/net/bonding/bond_options.c
@@ -199,7 +199,7 @@ static const struct bond_option bond_opts[] = {
[BOND_OPT_XMIT_HASH] = {
.id = BOND_OPT_XMIT_HASH,
.name = "xmit_hash_policy",
- .desc = "balance-xor and 802.3ad hashing method",
+ .desc = "balance-xor, 802.3ad, and tlb hashing method",
.values = bond_xmit_hashtype_tbl,
.set = bond_option_xmit_hash_policy_set
},
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