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// SPDX-License-Identifier: GPL-2.0-or-later
#include <net/switchdev.h>
#include "br_private_mrp.h"
static enum br_mrp_hw_support
br_mrp_switchdev_port_obj(struct net_bridge *br,
const struct switchdev_obj *obj, bool add)
{
int err;
if (add)
err = switchdev_port_obj_add(br->dev, obj, NULL);
else
err = switchdev_port_obj_del(br->dev, obj);
/* In case of success just return and notify the SW that doesn't need
* to do anything
*/
if (!err)
return BR_MRP_HW;
if (err != -EOPNOTSUPP)
return BR_MRP_NONE;
/* Continue with SW backup */
return BR_MRP_SW;
}
int br_mrp_switchdev_add(struct net_bridge *br, struct br_mrp *mrp)
{
struct switchdev_obj_mrp mrp_obj = {
.obj.orig_dev = br->dev,
.obj.id = SWITCHDEV_OBJ_ID_MRP,
.p_port = rtnl_dereference(mrp->p_port)->dev,
.s_port = rtnl_dereference(mrp->s_port)->dev,
.ring_id = mrp->ring_id,
.prio = mrp->prio,
};
if (!IS_ENABLED(CONFIG_NET_SWITCHDEV))
return 0;
return switchdev_port_obj_add(br->dev, &mrp_obj.obj, NULL);
}
int br_mrp_switchdev_del(struct net_bridge *br, struct br_mrp *mrp)
{
struct switchdev_obj_mrp mrp_obj = {
.obj.orig_dev = br->dev,
.obj.id = SWITCHDEV_OBJ_ID_MRP,
.p_port = NULL,
.s_port = NULL,
.ring_id = mrp->ring_id,
};
if (!IS_ENABLED(CONFIG_NET_SWITCHDEV))
return 0;
return switchdev_port_obj_del(br->dev, &mrp_obj.obj);
}
enum br_mrp_hw_support
br_mrp_switchdev_set_ring_role(struct net_bridge *br, struct br_mrp *mrp,
enum br_mrp_ring_role_type role)
{
struct switchdev_obj_ring_role_mrp mrp_role = {
.obj.orig_dev = br->dev,
.obj.id = SWITCHDEV_OBJ_ID_RING_ROLE_MRP,
.ring_role = role,
.ring_id = mrp->ring_id,
.sw_backup = false,
};
enum br_mrp_hw_support support;
int err;
if (!IS_ENABLED(CONFIG_NET_SWITCHDEV))
return BR_MRP_SW;
support = br_mrp_switchdev_port_obj(br, &mrp_role.obj,
role != BR_MRP_RING_ROLE_DISABLED);
if (support != BR_MRP_SW)
return support;
/* If the driver can't configure to run completely the protocol in HW,
* then try again to configure the HW so the SW can run the protocol.
*/
mrp_role.sw_backup = true;
if (role != BR_MRP_RING_ROLE_DISABLED)
err = switchdev_port_obj_add(br->dev, &mrp_role.obj, NULL);
else
err = switchdev_port_obj_del(br->dev, &mrp_role.obj);
if (!err)
return BR_MRP_SW;
return BR_MRP_NONE;
}
enum br_mrp_hw_support
br_mrp_switchdev_send_ring_test(struct net_bridge *br, struct br_mrp *mrp,
u32 interval, u8 max_miss, u32 period,
bool monitor)
{
struct switchdev_obj_ring_test_mrp test = {
.obj.orig_dev = br->dev,
.obj.id = SWITCHDEV_OBJ_ID_RING_TEST_MRP,
.interval = interval,
.max_miss = max_miss,
.ring_id = mrp->ring_id,
.period = period,
.monitor = monitor,
};
if (!IS_ENABLED(CONFIG_NET_SWITCHDEV))
return BR_MRP_SW;
return br_mrp_switchdev_port_obj(br, &test.obj, interval != 0);
}
int br_mrp_switchdev_set_ring_state(struct net_bridge *br,
struct br_mrp *mrp,
enum br_mrp_ring_state_type state)
{
struct switchdev_obj_ring_state_mrp mrp_state = {
.obj.orig_dev = br->dev,
.obj.id = SWITCHDEV_OBJ_ID_RING_STATE_MRP,
.ring_state = state,
.ring_id = mrp->ring_id,
};
if (!IS_ENABLED(CONFIG_NET_SWITCHDEV))
return 0;
return switchdev_port_obj_add(br->dev, &mrp_state.obj, NULL);
}
enum br_mrp_hw_support
br_mrp_switchdev_set_in_role(struct net_bridge *br, struct br_mrp *mrp,
u16 in_id, u32 ring_id,
enum br_mrp_in_role_type role)
{
struct switchdev_obj_in_role_mrp mrp_role = {
.obj.orig_dev = br->dev,
.obj.id = SWITCHDEV_OBJ_ID_IN_ROLE_MRP,
.in_role = role,
.in_id = mrp->in_id,
.ring_id = mrp->ring_id,
.i_port = rtnl_dereference(mrp->i_port)->dev,
.sw_backup = false,
};
enum br_mrp_hw_support support;
int err;
if (!IS_ENABLED(CONFIG_NET_SWITCHDEV))
return BR_MRP_SW;
support = br_mrp_switchdev_port_obj(br, &mrp_role.obj,
role != BR_MRP_IN_ROLE_DISABLED);
if (support != BR_MRP_NONE)
return support;
/* If the driver can't configure to run completely the protocol in HW,
* then try again to configure the HW so the SW can run the protocol.
*/
mrp_role.sw_backup = true;
if (role != BR_MRP_IN_ROLE_DISABLED)
err = switchdev_port_obj_add(br->dev, &mrp_role.obj, NULL);
else
err = switchdev_port_obj_del(br->dev, &mrp_role.obj);
if (!err)
return BR_MRP_SW;
return BR_MRP_NONE;
}
int br_mrp_switchdev_set_in_state(struct net_bridge *br, struct br_mrp *mrp,
enum br_mrp_in_state_type state)
{
struct switchdev_obj_in_state_mrp mrp_state = {
.obj.orig_dev = br->dev,
.obj.id = SWITCHDEV_OBJ_ID_IN_STATE_MRP,
.in_state = state,
.in_id = mrp->in_id,
};
if (!IS_ENABLED(CONFIG_NET_SWITCHDEV))
return 0;
return switchdev_port_obj_add(br->dev, &mrp_state.obj, NULL);
}
enum br_mrp_hw_support
br_mrp_switchdev_send_in_test(struct net_bridge *br, struct br_mrp *mrp,
u32 interval, u8 max_miss, u32 period)
{
struct switchdev_obj_in_test_mrp test = {
.obj.orig_dev = br->dev,
.obj.id = SWITCHDEV_OBJ_ID_IN_TEST_MRP,
.interval = interval,
.max_miss = max_miss,
.in_id = mrp->in_id,
.period = period,
};
if (!IS_ENABLED(CONFIG_NET_SWITCHDEV))
return BR_MRP_SW;
return br_mrp_switchdev_port_obj(br, &test.obj, interval != 0);
}
int br_mrp_port_switchdev_set_state(struct net_bridge_port *p, u32 state)
{
struct switchdev_attr attr = {
.orig_dev = p->dev,
.id = SWITCHDEV_ATTR_ID_PORT_STP_STATE,
.u.stp_state = state,
};
if (!IS_ENABLED(CONFIG_NET_SWITCHDEV))
return 0;
return switchdev_port_attr_set(p->dev, &attr, NULL);
}
int br_mrp_port_switchdev_set_role(struct net_bridge_port *p,
enum br_mrp_port_role_type role)
{
struct switchdev_attr attr = {
.orig_dev = p->dev,
.id = SWITCHDEV_ATTR_ID_MRP_PORT_ROLE,
.u.mrp_port_role = role,
};
if (!IS_ENABLED(CONFIG_NET_SWITCHDEV))
return 0;
return switchdev_port_attr_set(p->dev, &attr, NULL);
}
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