From: sfeldma@cumulusnetworks.com Date: Wed, 18 Dec 2013 05:30:16 +0000 (-0800) Subject: bonding: add all_slaves_active attribute netlink support X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=1cc0b1e30c662d84a89690f42826cf49e2278b97;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git bonding: add all_slaves_active attribute netlink support Add IFLA_BOND_ALL_SLAVES_ACTIVE to allow get/set of bonding parameter all_slaves_active via netlink. Signed-off-by: Scott Feldman Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- diff --git a/drivers/net/bonding/bond_netlink.c b/drivers/net/bonding/bond_netlink.c index 07123a0fcf5d..517521569adf 100644 --- a/drivers/net/bonding/bond_netlink.c +++ b/drivers/net/bonding/bond_netlink.c @@ -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: diff --git a/drivers/net/bonding/bond_options.c b/drivers/net/bonding/bond_options.c index 01a966916dcb..cbd832293da4 100644 --- a/drivers/net/bonding/bond_options.c +++ b/drivers/net/bonding/bond_options.c @@ -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; +} diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c index 7efa33a8553f..9a3712513932 100644 --- a/drivers/net/bonding/bond_sysfs.c +++ b/drivers/net/bonding/bond_sysfs.c @@ -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; } diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h index 73538b7a45e1..3701e7d1fb16 100644 --- a/drivers/net/bonding/bonding.h +++ b/drivers/net/bonding/bonding.h @@ -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); diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h index bfe3d3b561ee..93e9c1b99f7a 100644 --- a/include/uapi/linux/if_link.h +++ b/include/uapi/linux/if_link.h @@ -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, };