Commit d5404915 authored by David S. Miller's avatar David S. Miller
Browse files

Merge branch 'switchdev_ageing_time' 



Scott Feldman says:

====================
switchdev: push bridge ageing_time attribute down

Push bridge-level attributes down to switchdev drivers.  This patchset
adds the infrastructure and then pushes, as an example, ageing_time attribute
down from bridge to switchdev (rocker) driver.  Add some range-checking
for ageing_time.

RTNETLINK answers: Numerical result out of range

Up until now, switchdev attrs where port-level attrs, so the netdev used in
switchdev_attr_set() would be a switch port or bond of switch ports.  With
bridge-level attrs, the netdev passed to switchdev_attr_set() is the bridge
netdev.  The same recusive algo is used to visit the leaves of the stacked
drivers to set the attr, it's just in this case we start one layer higher in
the stack.  One note is not all ports in the bridge may support setting a
bridge-level attribute, so rather than failing the entire set, we'll skip over
those ports returning -EOPNOTSUPP.

v2->v3: Per Jiri review: push only ageing_time attr down at this time, and
don't pass raw bridge IFLA_BR_* values; rather use new switchdev attr ID for
ageing_time.

v1->v2: rebase w/ net-next
====================

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parents 7533ce30 d0cf57f9

drivers/net/ethernet/rocker/rocker.c

+16 −0
Original line number Diff line number Diff line
@@ -4361,6 +4361,18 @@ static int rocker_port_brport_flags_set(struct rocker_port *rocker_port, 
	return err;

}



static int rocker_port_bridge_ageing_time(struct rocker_port *rocker_port,

					  struct switchdev_trans *trans,

					  u32 ageing_time)

{

	if (!switchdev_trans_ph_prepare(trans)) {

		rocker_port->ageing_time = clock_t_to_jiffies(ageing_time);

		mod_timer(&rocker_port->rocker->fdb_cleanup_timer, jiffies);

	}



	return 0;

}



static int rocker_port_attr_set(struct net_device *dev,

				struct switchdev_attr *attr,

				struct switchdev_trans *trans)
@@ -4378,6 +4390,10 @@ static int rocker_port_attr_set(struct net_device *dev, 
		err = rocker_port_brport_flags_set(rocker_port, trans,

						   attr->u.brport_flags);

		break;

	case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:

		err = rocker_port_bridge_ageing_time(rocker_port, trans,

						     attr->u.ageing_time);

		break;

	default:

		err = -EOPNOTSUPP;

		break;

include/net/switchdev.h

+3 −0
Original line number Diff line number Diff line
@@ -16,6 +16,7 @@ 
#include <linux/list.h>



#define SWITCHDEV_F_NO_RECURSE		BIT(0)

#define SWITCHDEV_F_SKIP_EOPNOTSUPP	BIT(1)



struct switchdev_trans_item {

	struct list_head list;
@@ -43,6 +44,7 @@ enum switchdev_attr_id { 
	SWITCHDEV_ATTR_ID_PORT_PARENT_ID,

	SWITCHDEV_ATTR_ID_PORT_STP_STATE,

	SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS,

	SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME,

};



struct switchdev_attr {
@@ -52,6 +54,7 @@ struct switchdev_attr { 
		struct netdev_phys_item_id ppid;	/* PORT_PARENT_ID */

		u8 stp_state;				/* PORT_STP_STATE */

		unsigned long brport_flags;		/* PORT_BRIDGE_FLAGS */

		u32 ageing_time;			/* BRIDGE_AGEING_TIME */

	} u;

};

net/bridge/br_ioctl.c

+1 −2
Original line number Diff line number Diff line
@@ -200,8 +200,7 @@ static int old_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) 
		if (!ns_capable(dev_net(dev)->user_ns, CAP_NET_ADMIN))

			return -EPERM;



		br->ageing_time = clock_t_to_jiffies(args[1]);

		return 0;

		return br_set_ageing_time(br, args[1]);



	case BRCTL_GET_PORT_INFO:

	{

net/bridge/br_netlink.c

+3 −3
Original line number Diff line number Diff line
@@ -870,9 +870,9 @@ static int br_changelink(struct net_device *brdev, struct nlattr *tb[], 
	}



	if (data[IFLA_BR_AGEING_TIME]) {

		u32 ageing_time = nla_get_u32(data[IFLA_BR_AGEING_TIME]);



		br->ageing_time = clock_t_to_jiffies(ageing_time);

		err = br_set_ageing_time(br, nla_get_u32(data[IFLA_BR_AGEING_TIME]));

		if (err)

			return err;

	}



	if (data[IFLA_BR_STP_STATE]) {

net/bridge/br_private.h

+1 −0
Original line number Diff line number Diff line
@@ -882,6 +882,7 @@ void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 
int br_set_forward_delay(struct net_bridge *br, unsigned long x);

int br_set_hello_time(struct net_bridge *br, unsigned long x);

int br_set_max_age(struct net_bridge *br, unsigned long x);

int br_set_ageing_time(struct net_bridge *br, u32 ageing_time);





/* br_stp_if.c */

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