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bonding: add all_slaves_active attribute netlink support

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Add IFLA_BOND_ALL_SLAVES_ACTIVE to allow get/set of bonding parameter
all_slaves_active via netlink.

Signed-off-by: Scott Feldman <sfeldma@cumulusnetworks.com>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
sfeldma@cumulusnetworks.com 2013-12-17 21:30:16 -08:00 committed by David S. Miller
parent 2c9839c143
commit 1cc0b1e30c
5 changed files with 54 additions and 27 deletions
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15
drivers/net/bonding/bond_netlink.c
View File

@ -38,6 +38,7 @@ static const struct nla_policy bond_policy[IFLA_BOND_MAX + 1] = {
[IFLA_BOND_XMIT_HASH_POLICY] = { .type = NLA_U8 },
[IFLA_BOND_RESEND_IGMP] = { .type = NLA_U32 },
[IFLA_BOND_NUM_PEER_NOTIF] = { .type = NLA_U8 },
[IFLA_BOND_ALL_SLAVES_ACTIVE] = { .type = NLA_U8 },
};
static int bond_validate(struct nlattr *tb[], struct nlattr *data[])
@ -213,6 +214,15 @@ static int bond_changelink(struct net_device *bond_dev,
if (err)
return err;
}
if (data[IFLA_BOND_ALL_SLAVES_ACTIVE]) {
int all_slaves_active =
nla_get_u8(data[IFLA_BOND_ALL_SLAVES_ACTIVE]);
err = bond_option_all_slaves_active_set(bond,
all_slaves_active);
if (err)
return err;
}
return 0;
}
@ -247,6 +257,7 @@ static size_t bond_get_size(const struct net_device *bond_dev)
nla_total_size(sizeof(u8)) + /* IFLA_BOND_XMIT_HASH_POLICY */
nla_total_size(sizeof(u32)) + /* IFLA_BOND_RESEND_IGMP */
nla_total_size(sizeof(u8)) + /* IFLA_BOND_NUM_PEER_NOTIF */
nla_total_size(sizeof(u8)) + /* IFLA_BOND_ALL_SLAVES_ACTIVE */
0;
}
@ -331,6 +342,10 @@ static int bond_fill_info(struct sk_buff *skb,
bond->params.num_peer_notif))
goto nla_put_failure;
if (nla_put_u8(skb, IFLA_BOND_ALL_SLAVES_ACTIVE,
bond->params.all_slaves_active))
goto nla_put_failure;
return 0;
nla_put_failure:

29
drivers/net/bonding/bond_options.c
View File

@ -582,3 +582,32 @@ int bond_option_num_peer_notif_set(struct bonding *bond, int num_peer_notif)
bond->params.num_peer_notif = num_peer_notif;
return 0;
}
int bond_option_all_slaves_active_set(struct bonding *bond,
int all_slaves_active)
{
struct list_head *iter;
struct slave *slave;
if (all_slaves_active == bond->params.all_slaves_active)
return 0;
if ((all_slaves_active == 0) || (all_slaves_active == 1)) {
bond->params.all_slaves_active = all_slaves_active;
} else {
pr_info("%s: Ignoring invalid all_slaves_active value %d.\n",
bond->dev->name, all_slaves_active);
return -EINVAL;
}
bond_for_each_slave(bond, slave, iter) {
if (!bond_is_active_slave(slave)) {
if (all_slaves_active)
slave->inactive = 0;
else
slave->inactive = 1;
}
}
return 0;
}

34
drivers/net/bonding/bond_sysfs.c
View File

@ -1290,41 +1290,21 @@ static ssize_t bonding_store_slaves_active(struct device *d,
const char *buf, size_t count)
{
struct bonding *bond = to_bond(d);
int new_value, ret = count;
struct list_head *iter;
struct slave *slave;
if (!rtnl_trylock())
return restart_syscall();
int new_value, ret;
if (sscanf(buf, "%d", &new_value) != 1) {
pr_err("%s: no all_slaves_active value specified.\n",
bond->dev->name);
ret = -EINVAL;
goto out;
return -EINVAL;
}
if (new_value == bond->params.all_slaves_active)
goto out;
if (!rtnl_trylock())
return restart_syscall();
if ((new_value == 0) || (new_value == 1)) {
bond->params.all_slaves_active = new_value;
} else {
pr_info("%s: Ignoring invalid all_slaves_active value %d.\n",
bond->dev->name, new_value);
ret = -EINVAL;
goto out;
}
ret = bond_option_all_slaves_active_set(bond, new_value);
if (!ret)
ret = count;
bond_for_each_slave(bond, slave, iter) {
if (!bond_is_active_slave(slave)) {
if (new_value)
slave->inactive = 0;
else
slave->inactive = 1;
}
}
out:
rtnl_unlock();
return ret;
}

2
drivers/net/bonding/bonding.h
View File

@ -462,6 +462,8 @@ int bond_option_xmit_hash_policy_set(struct bonding *bond,
int xmit_hash_policy);
int bond_option_resend_igmp_set(struct bonding *bond, int resend_igmp);
int bond_option_num_peer_notif_set(struct bonding *bond, int num_peer_notif);
int bond_option_all_slaves_active_set(struct bonding *bond,
int all_slaves_active);
struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond);
struct net_device *bond_option_active_slave_get(struct bonding *bond);

1
include/uapi/linux/if_link.h
View File

@ -345,6 +345,7 @@ enum {
IFLA_BOND_XMIT_HASH_POLICY,
IFLA_BOND_RESEND_IGMP,
IFLA_BOND_NUM_PEER_NOTIF,
IFLA_BOND_ALL_SLAVES_ACTIVE,
__IFLA_BOND_MAX,
};