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-rw-r--r--net/bridge/br_netlink.c87
-rw-r--r--net/bridge/br_private.h10
-rw-r--r--net/bridge/br_switchdev.c43
3 files changed, 119 insertions, 21 deletions
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 3bcda556971e..63dca347b73b 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -662,16 +662,26 @@ static int br_set_port_state(struct net_bridge_port *p, u8 state)
}
/* Set/clear or port flags based on attribute */
-static void br_set_port_flag(struct net_bridge_port *p, struct nlattr *tb[],
- int attrtype, unsigned long mask)
+static int br_set_port_flag(struct net_bridge_port *p, struct nlattr *tb[],
+ int attrtype, unsigned long mask)
{
- if (tb[attrtype]) {
- u8 flag = nla_get_u8(tb[attrtype]);
- if (flag)
- p->flags |= mask;
- else
- p->flags &= ~mask;
- }
+ unsigned long flags;
+ int err;
+
+ if (!tb[attrtype])
+ return 0;
+
+ if (nla_get_u8(tb[attrtype]))
+ flags = p->flags | mask;
+ else
+ flags = p->flags & ~mask;
+
+ err = br_switchdev_set_port_flag(p, flags, mask);
+ if (err)
+ return err;
+
+ p->flags = flags;
+ return 0;
}
/* Process bridge protocol info on port */
@@ -681,20 +691,55 @@ static int br_setport(struct net_bridge_port *p, struct nlattr *tb[])
bool br_vlan_tunnel_old = false;
int err;
- br_set_port_flag(p, tb, IFLA_BRPORT_MODE, BR_HAIRPIN_MODE);
- br_set_port_flag(p, tb, IFLA_BRPORT_GUARD, BR_BPDU_GUARD);
- br_set_port_flag(p, tb, IFLA_BRPORT_FAST_LEAVE, BR_MULTICAST_FAST_LEAVE);
- br_set_port_flag(p, tb, IFLA_BRPORT_PROTECT, BR_ROOT_BLOCK);
- br_set_port_flag(p, tb, IFLA_BRPORT_LEARNING, BR_LEARNING);
- br_set_port_flag(p, tb, IFLA_BRPORT_UNICAST_FLOOD, BR_FLOOD);
- br_set_port_flag(p, tb, IFLA_BRPORT_MCAST_FLOOD, BR_MCAST_FLOOD);
- br_set_port_flag(p, tb, IFLA_BRPORT_MCAST_TO_UCAST, BR_MULTICAST_TO_UNICAST);
- br_set_port_flag(p, tb, IFLA_BRPORT_BCAST_FLOOD, BR_BCAST_FLOOD);
- br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP, BR_PROXYARP);
- br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP_WIFI, BR_PROXYARP_WIFI);
+ err = br_set_port_flag(p, tb, IFLA_BRPORT_MODE, BR_HAIRPIN_MODE);
+ if (err)
+ return err;
+
+ err = br_set_port_flag(p, tb, IFLA_BRPORT_GUARD, BR_BPDU_GUARD);
+ if (err)
+ return err;
+
+ err = br_set_port_flag(p, tb, IFLA_BRPORT_FAST_LEAVE, BR_MULTICAST_FAST_LEAVE);
+ if (err)
+ return err;
+
+ err = br_set_port_flag(p, tb, IFLA_BRPORT_PROTECT, BR_ROOT_BLOCK);
+ if (err)
+ return err;
+
+ err = br_set_port_flag(p, tb, IFLA_BRPORT_LEARNING, BR_LEARNING);
+ if (err)
+ return err;
+
+ err = br_set_port_flag(p, tb, IFLA_BRPORT_UNICAST_FLOOD, BR_FLOOD);
+ if (err)
+ return err;
+
+ err = br_set_port_flag(p, tb, IFLA_BRPORT_MCAST_FLOOD, BR_MCAST_FLOOD);
+ if (err)
+ return err;
+
+ err = br_set_port_flag(p, tb, IFLA_BRPORT_MCAST_TO_UCAST, BR_MULTICAST_TO_UNICAST);
+ if (err)
+ return err;
+
+ err = br_set_port_flag(p, tb, IFLA_BRPORT_BCAST_FLOOD, BR_BCAST_FLOOD);
+ if (err)
+ return err;
+
+ err = br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP, BR_PROXYARP);
+ if (err)
+ return err;
+
+ err = br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP_WIFI, BR_PROXYARP_WIFI);
+ if (err)
+ return err;
br_vlan_tunnel_old = (p->flags & BR_VLAN_TUNNEL) ? true : false;
- br_set_port_flag(p, tb, IFLA_BRPORT_VLAN_TUNNEL, BR_VLAN_TUNNEL);
+ err = br_set_port_flag(p, tb, IFLA_BRPORT_VLAN_TUNNEL, BR_VLAN_TUNNEL);
+ if (err)
+ return err;
+
if (br_vlan_tunnel_old && !(p->flags & BR_VLAN_TUNNEL))
nbp_vlan_tunnel_info_flush(p);
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 20626927f433..7f439927a66d 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -1076,6 +1076,9 @@ void nbp_switchdev_frame_mark(const struct net_bridge_port *p,
struct sk_buff *skb);
bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p,
const struct sk_buff *skb);
+int br_switchdev_set_port_flag(struct net_bridge_port *p,
+ unsigned long flags,
+ unsigned long mask);
#else
static inline int nbp_switchdev_mark_set(struct net_bridge_port *p)
{
@@ -1092,6 +1095,13 @@ static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p,
{
return true;
}
+
+static inline int br_switchdev_set_port_flag(struct net_bridge_port *p,
+ unsigned long flags,
+ unsigned long mask)
+{
+ return 0;
+}
#endif /* CONFIG_NET_SWITCHDEV */
#endif
diff --git a/net/bridge/br_switchdev.c b/net/bridge/br_switchdev.c
index f4097b900de1..b975959ac15a 100644
--- a/net/bridge/br_switchdev.c
+++ b/net/bridge/br_switchdev.c
@@ -55,3 +55,46 @@ bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p,
return !skb->offload_fwd_mark ||
BR_INPUT_SKB_CB(skb)->offload_fwd_mark != p->offload_fwd_mark;
}
+
+/* Flags that can be offloaded to hardware */
+#define BR_PORT_FLAGS_HW_OFFLOAD (BR_LEARNING | BR_FLOOD | \
+ BR_MCAST_FLOOD | BR_BCAST_FLOOD)
+
+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_BRIDGE_FLAGS_SUPPORT,
+ };
+ int err;
+
+ if (mask & ~BR_PORT_FLAGS_HW_OFFLOAD)
+ return 0;
+
+ err = switchdev_port_attr_get(p->dev, &attr);
+ if (err == -EOPNOTSUPP)
+ return 0;
+ if (err)
+ return err;
+
+ /* Check if specific bridge flag attribute offload is supported */
+ if (!(attr.u.brport_flags_support & mask)) {
+ 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;
+}
generated by cgit (git 2.34.1) at 2024-05-28 13:01:09 +0000