diff options
Diffstat (limited to 'net/bridge/br_mrp_switchdev.c')
-rw-r--r-- | net/bridge/br_mrp_switchdev.c | 178 |
1 files changed, 107 insertions, 71 deletions
diff --git a/net/bridge/br_mrp_switchdev.c b/net/bridge/br_mrp_switchdev.c index ed547e03ace1..cb54b324fa8c 100644 --- a/net/bridge/br_mrp_switchdev.c +++ b/net/bridge/br_mrp_switchdev.c @@ -4,6 +4,30 @@ #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 = { @@ -14,14 +38,11 @@ int br_mrp_switchdev_add(struct net_bridge *br, struct br_mrp *mrp) .ring_id = mrp->ring_id, .prio = mrp->prio, }; - int err; - err = switchdev_port_obj_add(br->dev, &mrp_obj.obj, NULL); + if (!IS_ENABLED(CONFIG_NET_SWITCHDEV)) + return 0; - if (err && err != -EOPNOTSUPP) - return err; - - 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) @@ -33,40 +54,54 @@ int br_mrp_switchdev_del(struct net_bridge *br, struct br_mrp *mrp) .s_port = NULL, .ring_id = mrp->ring_id, }; - int err; - - err = switchdev_port_obj_del(br->dev, &mrp_obj.obj); - if (err && err != -EOPNOTSUPP) - return err; + if (!IS_ENABLED(CONFIG_NET_SWITCHDEV)) + return 0; - return 0; + return switchdev_port_obj_del(br->dev, &mrp_obj.obj); } -int br_mrp_switchdev_set_ring_role(struct net_bridge *br, - struct br_mrp *mrp, - enum br_mrp_ring_role_type role) +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 (role == BR_MRP_RING_ROLE_DISABLED) - err = switchdev_port_obj_del(br->dev, &mrp_role.obj); - else + 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); - return err; + if (!err) + return BR_MRP_SW; + + return BR_MRP_NONE; } -int br_mrp_switchdev_send_ring_test(struct net_bridge *br, - struct br_mrp *mrp, u32 interval, - u8 max_miss, u32 period, - bool monitor) +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, @@ -77,14 +112,11 @@ int br_mrp_switchdev_send_ring_test(struct net_bridge *br, .period = period, .monitor = monitor, }; - int err; - if (interval == 0) - err = switchdev_port_obj_del(br->dev, &test.obj); - else - err = switchdev_port_obj_add(br->dev, &test.obj, NULL); + if (!IS_ENABLED(CONFIG_NET_SWITCHDEV)) + return BR_MRP_SW; - return err; + return br_mrp_switchdev_port_obj(br, &test.obj, interval != 0); } int br_mrp_switchdev_set_ring_state(struct net_bridge *br, @@ -97,19 +129,17 @@ int br_mrp_switchdev_set_ring_state(struct net_bridge *br, .ring_state = state, .ring_id = mrp->ring_id, }; - int err; - - err = switchdev_port_obj_add(br->dev, &mrp_state.obj, NULL); - if (err && err != -EOPNOTSUPP) - return err; + if (!IS_ENABLED(CONFIG_NET_SWITCHDEV)) + return 0; - return 0; + return switchdev_port_obj_add(br->dev, &mrp_state.obj, NULL); } -int 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) +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, @@ -118,15 +148,32 @@ int br_mrp_switchdev_set_in_role(struct net_bridge *br, struct br_mrp *mrp, .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 (role == BR_MRP_IN_ROLE_DISABLED) - err = switchdev_port_obj_del(br->dev, &mrp_role.obj); - else + 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 err; + return BR_MRP_NONE; } int br_mrp_switchdev_set_in_state(struct net_bridge *br, struct br_mrp *mrp, @@ -138,18 +185,16 @@ int br_mrp_switchdev_set_in_state(struct net_bridge *br, struct br_mrp *mrp, .in_state = state, .in_id = mrp->in_id, }; - int err; - - err = switchdev_port_obj_add(br->dev, &mrp_state.obj, NULL); - if (err && err != -EOPNOTSUPP) - return err; + if (!IS_ENABLED(CONFIG_NET_SWITCHDEV)) + return 0; - return 0; + return switchdev_port_obj_add(br->dev, &mrp_state.obj, NULL); } -int br_mrp_switchdev_send_in_test(struct net_bridge *br, struct br_mrp *mrp, - u32 interval, u8 max_miss, u32 period) +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, @@ -159,32 +204,25 @@ int br_mrp_switchdev_send_in_test(struct net_bridge *br, struct br_mrp *mrp, .in_id = mrp->in_id, .period = period, }; - int err; - if (interval == 0) - err = switchdev_port_obj_del(br->dev, &test.obj); - else - err = switchdev_port_obj_add(br->dev, &test.obj, NULL); + if (!IS_ENABLED(CONFIG_NET_SWITCHDEV)) + return BR_MRP_SW; - return err; + return br_mrp_switchdev_port_obj(br, &test.obj, interval != 0); } -int br_mrp_port_switchdev_set_state(struct net_bridge_port *p, - enum br_mrp_port_state_type state) +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_MRP_PORT_STATE, - .u.mrp_port_state = state, + .id = SWITCHDEV_ATTR_ID_PORT_STP_STATE, + .u.stp_state = state, }; - int err; - err = switchdev_port_attr_set(p->dev, &attr); - if (err && err != -EOPNOTSUPP) - br_warn(p->br, "error setting offload MRP state on port %u(%s)\n", - (unsigned int)p->port_no, p->dev->name); + if (!IS_ENABLED(CONFIG_NET_SWITCHDEV)) + return 0; - return err; + return switchdev_port_attr_set(p->dev, &attr, NULL); } int br_mrp_port_switchdev_set_role(struct net_bridge_port *p, @@ -195,11 +233,9 @@ int br_mrp_port_switchdev_set_role(struct net_bridge_port *p, .id = SWITCHDEV_ATTR_ID_MRP_PORT_ROLE, .u.mrp_port_role = role, }; - int err; - err = switchdev_port_attr_set(p->dev, &attr); - if (err && err != -EOPNOTSUPP) - return err; + if (!IS_ENABLED(CONFIG_NET_SWITCHDEV)) + return 0; - return 0; + return switchdev_port_attr_set(p->dev, &attr, NULL); } |