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bridge: mrp: Add br_mrp_fill_info 

Add the function br_mrp_fill_info which populates the MRP attributes
regarding the status of each MRP instance.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Horatiu Vultur 2020-07-02 10:13:06 +02:00 committed by David S. Miller
parent e4266b991f
commit df42ef227d
2 changed files with 71 additions and 0 deletions
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64
net/bridge/br_mrp_netlink.c
View File

@ -304,6 +304,70 @@ int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p,
return 0;
}
int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br)
{
struct nlattr *tb, *mrp_tb;
struct br_mrp *mrp;
mrp_tb = nla_nest_start_noflag(skb, IFLA_BRIDGE_MRP);
if (!mrp_tb)
return -EMSGSIZE;
list_for_each_entry_rcu(mrp, &br->mrp_list, list) {
struct net_bridge_port *p;
tb = nla_nest_start_noflag(skb, IFLA_BRIDGE_MRP_INFO);
if (!tb)
goto nla_info_failure;
if (nla_put_u32(skb, IFLA_BRIDGE_MRP_INFO_RING_ID,
mrp->ring_id))
goto nla_put_failure;
p = rcu_dereference(mrp->p_port);
if (p && nla_put_u32(skb, IFLA_BRIDGE_MRP_INFO_P_IFINDEX,
p->dev->ifindex))
goto nla_put_failure;
p = rcu_dereference(mrp->s_port);
if (p && nla_put_u32(skb, IFLA_BRIDGE_MRP_INFO_S_IFINDEX,
p->dev->ifindex))
goto nla_put_failure;
if (nla_put_u16(skb, IFLA_BRIDGE_MRP_INFO_PRIO,
mrp->prio))
goto nla_put_failure;
if (nla_put_u32(skb, IFLA_BRIDGE_MRP_INFO_RING_STATE,
mrp->ring_state))
goto nla_put_failure;
if (nla_put_u32(skb, IFLA_BRIDGE_MRP_INFO_RING_ROLE,
mrp->ring_role))
goto nla_put_failure;
if (nla_put_u32(skb, IFLA_BRIDGE_MRP_INFO_TEST_INTERVAL,
mrp->test_interval))
goto nla_put_failure;
if (nla_put_u32(skb, IFLA_BRIDGE_MRP_INFO_TEST_MAX_MISS,
mrp->test_max_miss))
goto nla_put_failure;
if (nla_put_u32(skb, IFLA_BRIDGE_MRP_INFO_TEST_MONITOR,
mrp->test_monitor))
goto nla_put_failure;
nla_nest_end(skb, tb);
}
nla_nest_end(skb, mrp_tb);
return 0;
nla_put_failure:
nla_nest_cancel(skb, tb);
nla_info_failure:
nla_nest_cancel(skb, mrp_tb);
return -EMSGSIZE;
}
int br_mrp_port_open(struct net_device *dev, u8 loc)
{
struct net_bridge_port *p;

7
net/bridge/br_private.h
View File

@ -1317,6 +1317,7 @@ int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p,
int br_mrp_process(struct net_bridge_port *p, struct sk_buff *skb);
bool br_mrp_enabled(struct net_bridge *br);
void br_mrp_port_del(struct net_bridge *br, struct net_bridge_port *p);
int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br);
#else
static inline int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p,
struct nlattr *attr, int cmd,
@ -1339,6 +1340,12 @@ static inline void br_mrp_port_del(struct net_bridge *br,
struct net_bridge_port *p)
{
}
static inline int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br)
{
return 0;
}
#endif
/* br_netlink.c */