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bonding: add num_grat_arp attribute netlink support
Add IFLA_BOND_NUM_PEER_NOTIF to allow get/set of bonding parameter num_grat_arp via netlink. Bonding parameter num_unsol_na is synonymous with num_grat_arp, so add only one netlink attribute to represent both bonding parameters. 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>
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parent
de47c4ab25
commit
2c9839c143
5 changed files with 41 additions and 2 deletions
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@ -37,6 +37,7 @@ static const struct nla_policy bond_policy[IFLA_BOND_MAX + 1] = {
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[IFLA_BOND_FAIL_OVER_MAC] = { .type = NLA_U8 },
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[IFLA_BOND_XMIT_HASH_POLICY] = { .type = NLA_U8 },
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[IFLA_BOND_RESEND_IGMP] = { .type = NLA_U32 },
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[IFLA_BOND_NUM_PEER_NOTIF] = { .type = NLA_U8 },
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};
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static int bond_validate(struct nlattr *tb[], struct nlattr *data[])
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@ -204,6 +205,14 @@ static int bond_changelink(struct net_device *bond_dev,
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if (err)
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return err;
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}
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if (data[IFLA_BOND_NUM_PEER_NOTIF]) {
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int num_peer_notif =
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nla_get_u8(data[IFLA_BOND_NUM_PEER_NOTIF]);
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err = bond_option_num_peer_notif_set(bond, num_peer_notif);
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if (err)
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return err;
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}
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return 0;
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}
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@ -237,6 +246,7 @@ static size_t bond_get_size(const struct net_device *bond_dev)
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nla_total_size(sizeof(u8)) + /* IFLA_BOND_FAIL_OVER_MAC */
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nla_total_size(sizeof(u8)) + /* IFLA_BOND_XMIT_HASH_POLICY */
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nla_total_size(sizeof(u32)) + /* IFLA_BOND_RESEND_IGMP */
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nla_total_size(sizeof(u8)) + /* IFLA_BOND_NUM_PEER_NOTIF */
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0;
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}
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@ -317,6 +327,10 @@ static int bond_fill_info(struct sk_buff *skb,
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bond->params.resend_igmp))
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goto nla_put_failure;
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if (nla_put_u8(skb, IFLA_BOND_NUM_PEER_NOTIF,
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bond->params.num_peer_notif))
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goto nla_put_failure;
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return 0;
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nla_put_failure:
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@ -576,3 +576,9 @@ int bond_option_resend_igmp_set(struct bonding *bond, int resend_igmp)
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return 0;
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}
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int bond_option_num_peer_notif_set(struct bonding *bond, int num_peer_notif)
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{
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bond->params.num_peer_notif = num_peer_notif;
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return 0;
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}
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@ -790,8 +790,25 @@ static ssize_t bonding_store_num_peer_notif(struct device *d,
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const char *buf, size_t count)
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{
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struct bonding *bond = to_bond(d);
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int err = kstrtou8(buf, 10, &bond->params.num_peer_notif);
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return err ? err : count;
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u8 new_value;
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int ret;
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ret = kstrtou8(buf, 10, &new_value);
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if (!ret) {
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pr_err("%s: invalid value %s specified.\n",
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bond->dev->name, buf);
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return ret;
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}
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if (!rtnl_trylock())
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return restart_syscall();
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ret = bond_option_num_peer_notif_set(bond, new_value);
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if (!ret)
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ret = count;
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rtnl_unlock();
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return ret;
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}
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static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR,
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bonding_show_num_peer_notif, bonding_store_num_peer_notif);
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@ -461,6 +461,7 @@ int bond_option_fail_over_mac_set(struct bonding *bond, int fail_over_mac);
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int bond_option_xmit_hash_policy_set(struct bonding *bond,
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int xmit_hash_policy);
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int bond_option_resend_igmp_set(struct bonding *bond, int resend_igmp);
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int bond_option_num_peer_notif_set(struct bonding *bond, int num_peer_notif);
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struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond);
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struct net_device *bond_option_active_slave_get(struct bonding *bond);
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@ -344,6 +344,7 @@ enum {
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IFLA_BOND_FAIL_OVER_MAC,
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IFLA_BOND_XMIT_HASH_POLICY,
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IFLA_BOND_RESEND_IGMP,
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IFLA_BOND_NUM_PEER_NOTIF,
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__IFLA_BOND_MAX,
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};
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