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Commit cac1174f authored by Ido Schimmel's avatar Ido Schimmel Committed by David S. Miller
Browse files

drop_monitor: Initialize hardware per-CPU data 



Like software drops, hardware drops also need the same type of per-CPU
data. Therefore, initialize it during module initialization and
de-initialize it during module exit.

Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
Acked-by: default avatarJiri Pirko <jiri@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 9b63f57d

net/core/drop_monitor.c

+23 −2
Original line number Diff line number Diff line
@@ -76,6 +76,7 @@ struct dm_hw_stat_delta { 
static struct genl_family net_drop_monitor_family;



static DEFINE_PER_CPU(struct per_cpu_dm_data, dm_cpu_data);

static DEFINE_PER_CPU(struct per_cpu_dm_data, dm_hw_cpu_data);



static int dm_hit_limit = 64;

static int dm_delay = 1;
@@ -966,6 +967,22 @@ static void net_dm_cpu_data_fini(int cpu) 
	__net_dm_cpu_data_fini(data);

}



static void net_dm_hw_cpu_data_init(int cpu)

{

	struct per_cpu_dm_data *hw_data;



	hw_data = &per_cpu(dm_hw_cpu_data, cpu);

	__net_dm_cpu_data_init(hw_data);

}



static void net_dm_hw_cpu_data_fini(int cpu)

{

	struct per_cpu_dm_data *hw_data;



	hw_data = &per_cpu(dm_hw_cpu_data, cpu);

	__net_dm_cpu_data_fini(hw_data);

}



static int __init init_net_drop_monitor(void)

{

	int cpu, rc;
@@ -992,8 +1009,10 @@ static int __init init_net_drop_monitor(void) 


	rc = 0;



	for_each_possible_cpu(cpu)

	for_each_possible_cpu(cpu) {

		net_dm_cpu_data_init(cpu);

		net_dm_hw_cpu_data_init(cpu);

	}



	goto out;
@@ -1014,8 +1033,10 @@ static void exit_net_drop_monitor(void) 
	 * we are guarnateed not to have any current users when we get here

	 */



	for_each_possible_cpu(cpu)

	for_each_possible_cpu(cpu) {

		net_dm_hw_cpu_data_fini(cpu);

		net_dm_cpu_data_fini(cpu);

	}



	BUG_ON(genl_unregister_family(&net_drop_monitor_family));

}