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tipc: make cluster size threshold for monitoring configurable

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In this commit, we introduce support to configure the minimum
threshold to activate the new link monitoring algorithm.

Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Parthasarathy Bhuvaragan 2016-07-26 08:47:19 +02:00 committed by David S. Miller
parent 9ff26e9fab
commit 7b3f522964
7 changed files with 66 additions and 2 deletions
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11
include/uapi/linux/tipc_netlink.h
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@ -56,6 +56,7 @@ enum {
TIPC_NL_NET_GET,
TIPC_NL_NET_SET,
TIPC_NL_NAME_TABLE_GET,
TIPC_NL_MON_SET,
__TIPC_NL_CMD_MAX,
TIPC_NL_CMD_MAX = __TIPC_NL_CMD_MAX - 1
@ -72,6 +73,7 @@ enum {
TIPC_NLA_NODE, /* nest */
TIPC_NLA_NET, /* nest */
TIPC_NLA_NAME_TABLE, /* nest */
TIPC_NLA_MON, /* nest */
__TIPC_NLA_MAX,
TIPC_NLA_MAX = __TIPC_NLA_MAX - 1
@ -166,6 +168,15 @@ enum {
TIPC_NLA_NAME_TABLE_MAX = __TIPC_NLA_NAME_TABLE_MAX - 1
};
/* Monitor info */
enum {
TIPC_NLA_MON_UNSPEC,
TIPC_NLA_MON_ACTIVATION_THRESHOLD, /* u32 */
__TIPC_NLA_MON_MAX,
TIPC_NLA_MON_MAX = __TIPC_NLA_MON_MAX - 1
};
/* Publication info */
enum {
TIPC_NLA_PUBL_UNSPEC,

12
net/tipc/monitor.c
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@ -649,3 +649,15 @@ void tipc_mon_delete(struct net *net, int bearer_id)
kfree(self);
kfree(mon);
}
int tipc_nl_monitor_set_threshold(struct net *net, u32 cluster_size)
{
struct tipc_net *tn = tipc_net(net);
if (cluster_size > TIPC_CLUSTER_SIZE)
return -EINVAL;
tn->mon_threshold = cluster_size;
return 0;
}

1
net/tipc/monitor.h
View File

@ -69,5 +69,6 @@ void tipc_mon_get_state(struct net *net, u32 addr,
int bearer_id);
void tipc_mon_remove_peer(struct net *net, u32 addr, int bearer_id);
int tipc_nl_monitor_set_threshold(struct net *net, u32 cluster_size);
extern const int tipc_max_domain_size;
#endif

15
net/tipc/netlink.c
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@ -52,7 +52,8 @@ static const struct nla_policy tipc_nl_policy[TIPC_NLA_MAX + 1] = {
[TIPC_NLA_MEDIA] = { .type = NLA_NESTED, },
[TIPC_NLA_NODE] = { .type = NLA_NESTED, },
[TIPC_NLA_NET] = { .type = NLA_NESTED, },
[TIPC_NLA_NAME_TABLE] = { .type = NLA_NESTED, }
[TIPC_NLA_NAME_TABLE] = { .type = NLA_NESTED, },
[TIPC_NLA_MON] = { .type = NLA_NESTED, },
};
const struct nla_policy
@ -61,6 +62,11 @@ tipc_nl_name_table_policy[TIPC_NLA_NAME_TABLE_MAX + 1] = {
[TIPC_NLA_NAME_TABLE_PUBL] = { .type = NLA_NESTED }
};
const struct nla_policy tipc_nl_monitor_policy[TIPC_NLA_MON_MAX + 1] = {
[TIPC_NLA_MON_UNSPEC] = { .type = NLA_UNSPEC },
[TIPC_NLA_MON_ACTIVATION_THRESHOLD] = { .type = NLA_U32 },
};
const struct nla_policy tipc_nl_sock_policy[TIPC_NLA_SOCK_MAX + 1] = {
[TIPC_NLA_SOCK_UNSPEC] = { .type = NLA_UNSPEC },
[TIPC_NLA_SOCK_ADDR] = { .type = NLA_U32 },
@ -214,7 +220,12 @@ static const struct genl_ops tipc_genl_v2_ops[] = {
.cmd = TIPC_NL_NAME_TABLE_GET,
.dumpit = tipc_nl_name_table_dump,
.policy = tipc_nl_policy,
}
},
{
.cmd = TIPC_NL_MON_SET,
.doit = tipc_nl_node_set_monitor,
.policy = tipc_nl_policy,
},
};
int tipc_nlmsg_parse(const struct nlmsghdr *nlh, struct nlattr ***attr)

1
net/tipc/netlink.h
View File

@ -55,6 +55,7 @@ extern const struct nla_policy tipc_nl_prop_policy[];
extern const struct nla_policy tipc_nl_bearer_policy[];
extern const struct nla_policy tipc_nl_media_policy[];
extern const struct nla_policy tipc_nl_udp_policy[];
extern const struct nla_policy tipc_nl_monitor_policy[];
int tipc_netlink_start(void);
int tipc_netlink_compat_start(void);

27
net/tipc/node.c
View File

@ -1928,3 +1928,30 @@ out:
return skb->len;
}
int tipc_nl_node_set_monitor(struct sk_buff *skb, struct genl_info *info)
{
struct nlattr *attrs[TIPC_NLA_MON_MAX + 1];
struct net *net = sock_net(skb->sk);
int err;
if (!info->attrs[TIPC_NLA_MON])
return -EINVAL;
err = nla_parse_nested(attrs, TIPC_NLA_MON_MAX,
info->attrs[TIPC_NLA_MON],
tipc_nl_monitor_policy);
if (err)
return err;
if (attrs[TIPC_NLA_MON_ACTIVATION_THRESHOLD]) {
u32 val;
val = nla_get_u32(attrs[TIPC_NLA_MON_ACTIVATION_THRESHOLD]);
err = tipc_nl_monitor_set_threshold(net, val);
if (err)
return err;
}
return 0;
}

1
net/tipc/node.h
View File

@ -78,4 +78,5 @@ int tipc_nl_node_reset_link_stats(struct sk_buff *skb, struct genl_info *info);
int tipc_nl_node_get_link(struct sk_buff *skb, struct genl_info *info);
int tipc_nl_node_set_link(struct sk_buff *skb, struct genl_info *info);
int tipc_nl_node_set_monitor(struct sk_buff *skb, struct genl_info *info);
#endif