--- zzzz-none-000/linux-4.9.276/net/bridge/br_switchdev.c 2021-07-20 14:21:16.000000000 +0000 +++ falcon-5530-750/linux-4.9.276/net/bridge/br_switchdev.c 2023-04-05 08:19:02.000000000 +0000 @@ -53,5 +53,70 @@ const struct sk_buff *skb) { return !skb->offload_fwd_mark || - BR_INPUT_SKB_CB(skb)->offload_fwd_mark != p->offload_fwd_mark; + BR_INPUT_SKB_CB(skb)->offload_fwd_mark != p->offload_fwd_mark || + (p->flags & BR_SOFTWARE_FWD); +} + +/* Flags that can be offloaded to hardware */ +#define BR_PORT_FLAGS_HW_OFFLOAD (BR_LEARNING | BR_FLOOD | \ + BR_MCAST_FLOOD | BR_MCAST_DEST_LOOKUP | \ + BR_MCAST_SRC_LOOKUP | BR_ISOLATED | \ + BR_HAIRPIN_MODE | BR_MULTICAST_TO_UNICAST | \ + BR_MCAST_FLOOD | BR_BCAST_FLOOD | \ + BR_SOFTWARE_FWD) + +int br_switchdev_set_port_flag(struct net_bridge_port *p, + unsigned long flags, + unsigned long mask) +{ + struct switchdev_attr attr = { + .orig_dev = p->dev, + .id = SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS, + .u.brport_flags = mask, + }; + int err; + + if (mask & ~BR_PORT_FLAGS_HW_OFFLOAD) + return 0; + + err = switchdev_port_attr_set(p->dev, &attr); + if (err == -EOPNOTSUPP) + return 0; + + if (err) { + br_warn(p->br, "bridge flag offload is not supported %u(%s)\n", + (unsigned int)p->port_no, p->dev->name); + return -EOPNOTSUPP; + } + + attr.id = SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS; + attr.flags = SWITCHDEV_F_DEFER; + attr.u.brport_flags = flags; + + err = switchdev_port_attr_set(p->dev, &attr); + if (err) { + br_warn(p->br, "error setting offload flag on port %u(%s)\n", + (unsigned int)p->port_no, p->dev->name); + return err; + } + + return 0; +} + +int nbp_switchdev_avm_flood_ratelimit_set(struct net_bridge *br, + int val) +{ + struct switchdev_attr attr = { + .orig_dev = br->dev, + .id = SWITCHDEV_ATTR_ID_BRIDGE_AVM_FLOOD_RATELIMIT, + .flags = SWITCHDEV_F_SKIP_EOPNOTSUPP | SWITCHDEV_F_DEFER, + .u.avm_flood_ratelimit = val, + }; + int err; + + err = switchdev_port_attr_set(br->dev, &attr); + if (err && err != -EOPNOTSUPP) + return err; + + return 0; }