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Message-Id: <1299935679-18135-5-git-send-email-jpirko@redhat.com>
Date: Sat, 12 Mar 2011 14:14:37 +0100
From: Jiri Pirko <jpirko@...hat.com>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net, shemminger@...ux-foundation.org,
kaber@...sh.net, fubar@...ibm.com, eric.dumazet@...il.com,
nicolas.2p.debian@...il.com, andy@...yhouse.net, xiaosuo@...il.com
Subject: [patch net-next-2.6 4/6] bonding: wrap slave state work
transfers slave->state into slave->backup (that it's going to transfer
into bitfield. Introduce wrapper inlines to do the work with it.
Signed-off-by: Jiri Pirko <jpirko@...hat.com>
Reviewed-by: Nicolas de Pesloüan <nicolas.2p.debian@...e.fr>
---
drivers/net/bonding/bond_3ad.c | 2 +-
drivers/net/bonding/bond_main.c | 36 ++++++++++++++++++------------------
drivers/net/bonding/bond_sysfs.c | 2 +-
drivers/net/bonding/bonding.h | 31 ++++++++++++++++++++++++++-----
4 files changed, 46 insertions(+), 25 deletions(-)
diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index 1024ae1..047af0b 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -246,7 +246,7 @@ static inline void __enable_port(struct port *port)
*/
static inline int __port_is_enabled(struct port *port)
{
- return port->slave->state == BOND_STATE_ACTIVE;
+ return bond_is_active_slave(port->slave);
}
/**
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 3c6ac2f..c5f3a01 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1863,7 +1863,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
break;
case BOND_MODE_TLB:
case BOND_MODE_ALB:
- new_slave->state = BOND_STATE_ACTIVE;
+ bond_set_active_slave(new_slave);
bond_set_slave_inactive_flags(new_slave);
bond_select_active_slave(bond);
break;
@@ -1871,7 +1871,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
pr_debug("This slave is always active in trunk mode\n");
/* always active in trunk mode */
- new_slave->state = BOND_STATE_ACTIVE;
+ bond_set_active_slave(new_slave);
/* In trunking mode there is little meaning to curr_active_slave
* anyway (it holds no special properties of the bond device),
@@ -1909,7 +1909,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
pr_info("%s: enslaving %s as a%s interface with a%s link.\n",
bond_dev->name, slave_dev->name,
- new_slave->state == BOND_STATE_ACTIVE ? "n active" : " backup",
+ bond_is_active_slave(new_slave) ? "n active" : " backup",
new_slave->link != BOND_LINK_DOWN ? "n up" : " down");
/* enslave is successful */
@@ -2007,7 +2007,7 @@ int bond_release(struct net_device *bond_dev, struct net_device *slave_dev)
pr_info("%s: releasing %s interface %s\n",
bond_dev->name,
- (slave->state == BOND_STATE_ACTIVE) ? "active" : "backup",
+ bond_is_active_slave(slave) ? "active" : "backup",
slave_dev->name);
oldcurrent = bond->curr_active_slave;
@@ -2348,7 +2348,7 @@ static int bond_slave_info_query(struct net_device *bond_dev, struct ifslave *in
res = 0;
strcpy(info->slave_name, slave->dev->name);
info->link = slave->link;
- info->state = slave->state;
+ info->state = bond_slave_state(slave);
info->link_failure_count = slave->link_failure_count;
break;
}
@@ -2387,7 +2387,7 @@ static int bond_miimon_inspect(struct bonding *bond)
bond->dev->name,
(bond->params.mode ==
BOND_MODE_ACTIVEBACKUP) ?
- ((slave->state == BOND_STATE_ACTIVE) ?
+ (bond_is_active_slave(slave) ?
"active " : "backup ") : "",
slave->dev->name,
bond->params.downdelay * bond->params.miimon);
@@ -2478,13 +2478,13 @@ static void bond_miimon_commit(struct bonding *bond)
if (bond->params.mode == BOND_MODE_8023AD) {
/* prevent it from being the active one */
- slave->state = BOND_STATE_BACKUP;
+ bond_set_backup_slave(slave);
} else if (bond->params.mode != BOND_MODE_ACTIVEBACKUP) {
/* make it immediately active */
- slave->state = BOND_STATE_ACTIVE;
+ bond_set_active_slave(slave);
} else if (slave != bond->primary_slave) {
/* prevent it from being the active one */
- slave->state = BOND_STATE_BACKUP;
+ bond_set_backup_slave(slave);
}
bond_update_speed_duplex(slave);
@@ -2862,7 +2862,7 @@ static int bond_arp_rcv(struct sk_buff *skb, struct net_device *dev, struct pack
memcpy(&tip, arp_ptr, 4);
pr_debug("bond_arp_rcv: %s %s/%d av %d sv %d sip %pI4 tip %pI4\n",
- bond->dev->name, slave->dev->name, slave->state,
+ bond->dev->name, slave->dev->name, bond_slave_state(slave),
bond->params.arp_validate, slave_do_arp_validate(bond, slave),
&sip, &tip);
@@ -2874,7 +2874,7 @@ static int bond_arp_rcv(struct sk_buff *skb, struct net_device *dev, struct pack
* the active, through one switch, the router, then the other
* switch before reaching the backup.
*/
- if (slave->state == BOND_STATE_ACTIVE)
+ if (bond_is_active_slave(slave))
bond_validate_arp(bond, slave, sip, tip);
else
bond_validate_arp(bond, slave, tip, sip);
@@ -2936,7 +2936,7 @@ void bond_loadbalance_arp_mon(struct work_struct *work)
slave->dev->last_rx + delta_in_ticks)) {
slave->link = BOND_LINK_UP;
- slave->state = BOND_STATE_ACTIVE;
+ bond_set_active_slave(slave);
/* primary_slave has no meaning in round-robin
* mode. the window of a slave being up and
@@ -2969,7 +2969,7 @@ void bond_loadbalance_arp_mon(struct work_struct *work)
slave->dev->last_rx + 2 * delta_in_ticks)) {
slave->link = BOND_LINK_DOWN;
- slave->state = BOND_STATE_BACKUP;
+ bond_set_backup_slave(slave);
if (slave->link_failure_count < UINT_MAX)
slave->link_failure_count++;
@@ -3063,7 +3063,7 @@ static int bond_ab_arp_inspect(struct bonding *bond, int delta_in_ticks)
* gives each slave a chance to tx/rx traffic
* before being taken out
*/
- if (slave->state == BOND_STATE_BACKUP &&
+ if (!bond_is_active_slave(slave) &&
!bond->current_arp_slave &&
!time_in_range(jiffies,
slave_last_rx(bond, slave) - delta_in_ticks,
@@ -3080,7 +3080,7 @@ static int bond_ab_arp_inspect(struct bonding *bond, int delta_in_ticks)
* the bond has an IP address)
*/
trans_start = dev_trans_start(slave->dev);
- if ((slave->state == BOND_STATE_ACTIVE) &&
+ if (bond_is_active_slave(slave) &&
(!time_in_range(jiffies,
trans_start - delta_in_ticks,
trans_start + 2 * delta_in_ticks) ||
@@ -4144,7 +4144,7 @@ static int bond_xmit_roundrobin(struct sk_buff *skb, struct net_device *bond_dev
bond_for_each_slave_from(bond, slave, i, start_at) {
if (IS_UP(slave->dev) &&
(slave->link == BOND_LINK_UP) &&
- (slave->state == BOND_STATE_ACTIVE)) {
+ bond_is_active_slave(slave)) {
res = bond_dev_queue_xmit(bond, skb, slave->dev);
break;
}
@@ -4221,7 +4221,7 @@ static int bond_xmit_xor(struct sk_buff *skb, struct net_device *bond_dev)
bond_for_each_slave_from(bond, slave, i, start_at) {
if (IS_UP(slave->dev) &&
(slave->link == BOND_LINK_UP) &&
- (slave->state == BOND_STATE_ACTIVE)) {
+ bond_is_active_slave(slave)) {
res = bond_dev_queue_xmit(bond, skb, slave->dev);
break;
}
@@ -4262,7 +4262,7 @@ static int bond_xmit_broadcast(struct sk_buff *skb, struct net_device *bond_dev)
bond_for_each_slave_from(bond, slave, i, start_at) {
if (IS_UP(slave->dev) &&
(slave->link == BOND_LINK_UP) &&
- (slave->state == BOND_STATE_ACTIVE)) {
+ bond_is_active_slave(slave)) {
if (tx_dev) {
struct sk_buff *skb2 = skb_clone(skb, GFP_ATOMIC);
if (!skb2) {
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index 05e0ae5..344d23f 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -1579,7 +1579,7 @@ static ssize_t bonding_store_slaves_active(struct device *d,
}
bond_for_each_slave(bond, slave, i) {
- if (slave->state == BOND_STATE_BACKUP) {
+ if (!bond_is_active_slave(slave)) {
if (new_value)
slave->dev->priv_flags &= ~IFF_SLAVE_INACTIVE;
else
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 049619f..63e9cf7 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -55,7 +55,7 @@
(((slave)->dev->flags & IFF_UP) && \
netif_running((slave)->dev) && \
((slave)->link == BOND_LINK_UP) && \
- ((slave)->state == BOND_STATE_ACTIVE))
+ bond_is_active_slave(slave))
#define USES_PRIMARY(mode) \
@@ -192,7 +192,8 @@ struct slave {
unsigned long last_arp_rx;
s8 link; /* one of BOND_LINK_XXXX */
s8 new_link;
- s8 state; /* one of BOND_STATE_XXXX */
+ u8 backup; /* indicates backup slave. Value corresponds with
+ BOND_STATE_ACTIVE and BOND_STATE_BACKUP */
u32 original_mtu;
u32 link_failure_count;
u8 perm_hwaddr[ETH_ALEN];
@@ -304,6 +305,26 @@ static inline bool bond_is_lb(const struct bonding *bond)
bond->params.mode == BOND_MODE_ALB);
}
+static inline void bond_set_active_slave(struct slave *slave)
+{
+ slave->backup = 0;
+}
+
+static inline void bond_set_backup_slave(struct slave *slave)
+{
+ slave->backup = 1;
+}
+
+static inline int bond_slave_state(struct slave *slave)
+{
+ return slave->backup;
+}
+
+static inline bool bond_is_active_slave(struct slave *slave)
+{
+ return !bond_slave_state(slave);
+}
+
#define BOND_PRI_RESELECT_ALWAYS 0
#define BOND_PRI_RESELECT_BETTER 1
#define BOND_PRI_RESELECT_FAILURE 2
@@ -321,7 +342,7 @@ static inline bool bond_is_lb(const struct bonding *bond)
static inline int slave_do_arp_validate(struct bonding *bond,
struct slave *slave)
{
- return bond->params.arp_validate & (1 << slave->state);
+ return bond->params.arp_validate & (1 << bond_slave_state(slave));
}
static inline unsigned long slave_last_rx(struct bonding *bond,
@@ -353,14 +374,14 @@ static inline void bond_set_slave_inactive_flags(struct slave *slave)
{
struct bonding *bond = netdev_priv(slave->dev->master);
if (!bond_is_lb(bond))
- slave->state = BOND_STATE_BACKUP;
+ bond_set_backup_slave(slave);
if (!bond->params.all_slaves_active)
slave->dev->priv_flags |= IFF_SLAVE_INACTIVE;
}
static inline void bond_set_slave_active_flags(struct slave *slave)
{
- slave->state = BOND_STATE_ACTIVE;
+ bond_set_active_slave(slave);
slave->dev->priv_flags &= ~IFF_SLAVE_INACTIVE;
}
--
1.7.4
--
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