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Date: Tue, 21 Jan 2014 15:55:09 +0100
From: Nikolay Aleksandrov <nikolay@...hat.com>
To: netdev@...r.kernel.org
Cc: Nikolay Aleksandrov <nikolay@...hat.com>
Subject: [PATCH net-next 20/25] bonding: convert active_slave to use the new option API
This patch adds the necessary changes so active_slave would use
the new bonding option API. Also some trivial/style fixes.
Signed-off-by: Nikolay Aleksandrov <nikolay@...hat.com>
---
drivers/net/bonding/bond_main.c | 4 +++-
drivers/net/bonding/bond_netlink.c | 9 +++++----
drivers/net/bonding/bond_options.c | 30 +++++++++++++++++++++++-------
drivers/net/bonding/bond_options.h | 3 +++
drivers/net/bonding/bond_sysfs.c | 24 ++----------------------
drivers/net/bonding/bonding.h | 1 -
6 files changed, 36 insertions(+), 35 deletions(-)
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index fc2e2ef..02ae65f 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -3124,6 +3124,7 @@ static int bond_do_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cmd
struct ifslave k_sinfo;
struct ifslave __user *u_sinfo = NULL;
struct mii_ioctl_data *mii = NULL;
+ struct bond_opt_value newval;
struct net *net;
int res = 0;
@@ -3219,7 +3220,8 @@ static int bond_do_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cmd
break;
case BOND_CHANGE_ACTIVE_OLD:
case SIOCBONDCHANGEACTIVE:
- res = bond_option_active_slave_set(bond, slave_dev);
+ bond_opt_initstr(&newval, slave_dev->name);
+ res = __bond_opt_set(bond, BOND_OPT_ACTIVE_SLAVE, &newval);
break;
default:
res = -EOPNOTSUPP;
diff --git a/drivers/net/bonding/bond_netlink.c b/drivers/net/bonding/bond_netlink.c
index 98c643d..bd26d1c 100644
--- a/drivers/net/bonding/bond_netlink.c
+++ b/drivers/net/bonding/bond_netlink.c
@@ -117,16 +117,17 @@ static int bond_changelink(struct net_device *bond_dev,
if (data[IFLA_BOND_ACTIVE_SLAVE]) {
int ifindex = nla_get_u32(data[IFLA_BOND_ACTIVE_SLAVE]);
struct net_device *slave_dev;
+ char *active_slave = "";
- if (ifindex == 0) {
- slave_dev = NULL;
- } else {
+ if (ifindex != 0) {
slave_dev = __dev_get_by_index(dev_net(bond_dev),
ifindex);
if (!slave_dev)
return -ENODEV;
+ active_slave = slave_dev->name;
}
- err = bond_option_active_slave_set(bond, slave_dev);
+ bond_opt_initstr(&newval, active_slave);
+ err = __bond_opt_set(bond, BOND_OPT_ACTIVE_SLAVE, &newval);
if (err)
return err;
}
diff --git a/drivers/net/bonding/bond_options.c b/drivers/net/bonding/bond_options.c
index 87cc534..2cba72a 100644
--- a/drivers/net/bonding/bond_options.c
+++ b/drivers/net/bonding/bond_options.c
@@ -245,6 +245,16 @@ static struct bond_option bond_opts[] = {
.values = bond_use_carrier_tbl,
.set = bond_option_use_carrier_set
},
+ [BOND_OPT_ACTIVE_SLAVE] = {
+ .id = BOND_OPT_ACTIVE_SLAVE,
+ .name = "active_slave",
+ .desc = "Currently active slave",
+ .flags = BOND_OPTFLAG_RAWVAL,
+ .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_ACTIVEBACKUP) |
+ BIT(BOND_MODE_TLB) |
+ BIT(BOND_MODE_ALB)),
+ .set = bond_option_active_slave_set
+ },
{ }
};
@@ -557,10 +567,21 @@ struct net_device *bond_option_active_slave_get(struct bonding *bond)
}
int bond_option_active_slave_set(struct bonding *bond,
- struct net_device *slave_dev)
+ struct bond_opt_value *newval)
{
+ char ifname[IFNAMSIZ] = { 0, };
+ struct net_device *slave_dev;
int ret = 0;
+ sscanf(newval->string, "%15s", ifname); /* IFNAMSIZ */
+ if (!strlen(ifname) || newval->string[0] == '\n') {
+ slave_dev = NULL;
+ } else {
+ slave_dev = __dev_get_by_name(dev_net(bond->dev), ifname);
+ if (!slave_dev)
+ return -ENODEV;
+ }
+
if (slave_dev) {
if (!netif_is_bond_slave(slave_dev)) {
pr_err("Device %s is not bonding slave.\n",
@@ -575,12 +596,6 @@ int bond_option_active_slave_set(struct bonding *bond,
}
}
- if (!USES_PRIMARY(bond->params.mode)) {
- pr_err("%s: Unable to change active slave; %s is in mode %d\n",
- bond->dev->name, bond->dev->name, bond->params.mode);
- return -EINVAL;
- }
-
block_netpoll_tx();
write_lock_bh(&bond->curr_slave_lock);
@@ -617,6 +632,7 @@ int bond_option_active_slave_set(struct bonding *bond,
write_unlock_bh(&bond->curr_slave_lock);
unblock_netpoll_tx();
+
return ret;
}
diff --git a/drivers/net/bonding/bond_options.h b/drivers/net/bonding/bond_options.h
index 229f5c1..1f486a7 100644
--- a/drivers/net/bonding/bond_options.h
+++ b/drivers/net/bonding/bond_options.h
@@ -56,6 +56,7 @@ enum {
BOND_OPT_PRIMARY,
BOND_OPT_PRIMARY_RESELECT,
BOND_OPT_USE_CARRIER,
+ BOND_OPT_ACTIVE_SLAVE,
BOND_OPT_LAST
};
@@ -150,4 +151,6 @@ int bond_option_primary_reselect_set(struct bonding *bond,
struct bond_opt_value *newval);
int bond_option_use_carrier_set(struct bonding *bond,
struct bond_opt_value *newval);
+int bond_option_active_slave_set(struct bonding *bond,
+ struct bond_opt_value *newval);
#endif /* _BOND_OPTIONS_H */
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index 079dcbc..0728965 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -810,34 +810,14 @@ static ssize_t bonding_store_active_slave(struct device *d,
struct device_attribute *attr,
const char *buf, size_t count)
{
- int ret;
struct bonding *bond = to_bond(d);
- char ifname[IFNAMSIZ];
- struct net_device *dev;
-
- if (!rtnl_trylock())
- return restart_syscall();
-
- sscanf(buf, "%15s", ifname); /* IFNAMSIZ */
- if (!strlen(ifname) || buf[0] == '\n') {
- dev = NULL;
- } else {
- dev = __dev_get_by_name(dev_net(bond->dev), ifname);
- if (!dev) {
- ret = -ENODEV;
- goto out;
- }
- }
+ int ret;
- ret = bond_option_active_slave_set(bond, dev);
+ ret = bond_opt_tryset_rtnl(bond, BOND_OPT_ACTIVE_SLAVE, (char *)buf);
if (!ret)
ret = count;
- out:
- rtnl_unlock();
-
return ret;
-
}
static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR,
bonding_show_active_slave, bonding_store_active_slave);
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 06fc79e..014605d 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -449,7 +449,6 @@ void bond_setup(struct net_device *bond_dev);
unsigned int bond_get_num_tx_queues(void);
int bond_netlink_init(void);
void bond_netlink_fini(void);
-int bond_option_active_slave_set(struct bonding *bond, struct net_device *slave_dev);
int bond_option_arp_ip_target_add(struct bonding *bond, __be32 target);
int bond_option_arp_ip_target_rem(struct bonding *bond, __be32 target);
int bond_option_resend_igmp_set(struct bonding *bond, int resend_igmp);
--
1.8.4.2
--
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