switchdev: add support for fdb add/del/dump via switchdev_port_obj ops.
- introduce port fdb obj and generic switchdev_port_fdb_add/del/dump() - use switchdev_port_fdb_add/del/dump in rocker/team/bonding ndo ops. - add support for fdb obj in switchdev_port_obj_add/del/dump() - switch rocker to implement fdb ops via switchdev_ops v3: updated to sync with named union changes. Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com> Signed-off-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Samudrala, Sridhar
David S. Miller
Родитель
5d48ef3e95
Коммит
45d4122ca7
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@ -4039,6 +4039,9 @@ static const struct net_device_ops bond_netdev_ops = {
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.ndo_bridge_setlink = switchdev_port_bridge_setlink,
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.ndo_bridge_getlink = switchdev_port_bridge_getlink,
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.ndo_bridge_dellink = switchdev_port_bridge_dellink,
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.ndo_fdb_add = switchdev_port_fdb_add,
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.ndo_fdb_del = switchdev_port_fdb_del,
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.ndo_fdb_dump = switchdev_port_fdb_dump,
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.ndo_features_check = passthru_features_check,
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};
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@ -4193,110 +4193,6 @@ static int rocker_port_vlan_rx_kill_vid(struct net_device *dev,
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ROCKER_OP_FLAG_REMOVE, vid);
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}
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static int rocker_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
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struct net_device *dev,
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const unsigned char *addr, u16 vid,
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u16 nlm_flags)
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{
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struct rocker_port *rocker_port = netdev_priv(dev);
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__be16 vlan_id = rocker_port_vid_to_vlan(rocker_port, vid, NULL);
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int flags = 0;
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if (!rocker_port_is_bridged(rocker_port))
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return -EINVAL;
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return rocker_port_fdb(rocker_port, SWITCHDEV_TRANS_NONE,
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addr, vlan_id, flags);
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}
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static int rocker_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
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struct net_device *dev,
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const unsigned char *addr, u16 vid)
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{
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struct rocker_port *rocker_port = netdev_priv(dev);
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__be16 vlan_id = rocker_port_vid_to_vlan(rocker_port, vid, NULL);
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int flags = ROCKER_OP_FLAG_REMOVE;
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if (!rocker_port_is_bridged(rocker_port))
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return -EINVAL;
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return rocker_port_fdb(rocker_port, SWITCHDEV_TRANS_NONE,
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addr, vlan_id, flags);
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}
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static int rocker_fdb_fill_info(struct sk_buff *skb,
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struct rocker_port *rocker_port,
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const unsigned char *addr, u16 vid,
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u32 portid, u32 seq, int type,
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unsigned int flags)
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{
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struct nlmsghdr *nlh;
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struct ndmsg *ndm;
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nlh = nlmsg_put(skb, portid, seq, type, sizeof(*ndm), flags);
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if (!nlh)
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return -EMSGSIZE;
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ndm = nlmsg_data(nlh);
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ndm->ndm_family = AF_BRIDGE;
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ndm->ndm_pad1 = 0;
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ndm->ndm_pad2 = 0;
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ndm->ndm_flags = NTF_SELF;
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ndm->ndm_type = 0;
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ndm->ndm_ifindex = rocker_port->dev->ifindex;
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ndm->ndm_state = NUD_REACHABLE;
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if (nla_put(skb, NDA_LLADDR, ETH_ALEN, addr))
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goto nla_put_failure;
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if (vid && nla_put_u16(skb, NDA_VLAN, vid))
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goto nla_put_failure;
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nlmsg_end(skb, nlh);
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return 0;
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nla_put_failure:
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nlmsg_cancel(skb, nlh);
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return -EMSGSIZE;
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}
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static int rocker_port_fdb_dump(struct sk_buff *skb,
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struct netlink_callback *cb,
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struct net_device *dev,
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struct net_device *filter_dev,
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int idx)
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{
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struct rocker_port *rocker_port = netdev_priv(dev);
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struct rocker *rocker = rocker_port->rocker;
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struct rocker_fdb_tbl_entry *found;
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struct hlist_node *tmp;
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int bkt;
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unsigned long lock_flags;
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const unsigned char *addr;
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u16 vid;
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int err;
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spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags);
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hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, found, entry) {
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if (found->key.pport != rocker_port->pport)
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continue;
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if (idx < cb->args[0])
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goto skip;
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addr = found->key.addr;
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vid = rocker_port_vlan_to_vid(rocker_port, found->key.vlan_id);
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err = rocker_fdb_fill_info(skb, rocker_port, addr, vid,
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NETLINK_CB(cb->skb).portid,
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cb->nlh->nlmsg_seq,
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RTM_NEWNEIGH, NLM_F_MULTI);
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if (err < 0)
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break;
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skip:
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++idx;
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}
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spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags);
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return idx;
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}
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static int rocker_port_get_phys_port_name(struct net_device *dev,
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char *buf, size_t len)
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{
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@ -4320,12 +4216,12 @@ static const struct net_device_ops rocker_port_netdev_ops = {
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.ndo_set_mac_address = rocker_port_set_mac_address,
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.ndo_vlan_rx_add_vid = rocker_port_vlan_rx_add_vid,
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.ndo_vlan_rx_kill_vid = rocker_port_vlan_rx_kill_vid,
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.ndo_fdb_add = rocker_port_fdb_add,
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.ndo_fdb_del = rocker_port_fdb_del,
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.ndo_fdb_dump = rocker_port_fdb_dump,
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.ndo_bridge_getlink = switchdev_port_bridge_getlink,
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.ndo_bridge_setlink = switchdev_port_bridge_setlink,
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.ndo_bridge_dellink = switchdev_port_bridge_dellink,
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.ndo_fdb_add = switchdev_port_fdb_add,
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.ndo_fdb_del = switchdev_port_fdb_del,
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.ndo_fdb_dump = switchdev_port_fdb_dump,
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.ndo_get_phys_port_name = rocker_port_get_phys_port_name,
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};
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@ -4447,6 +4343,19 @@ static int rocker_port_vlans_add(struct rocker_port *rocker_port,
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return 0;
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}
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static int rocker_port_fdb_add(struct rocker_port *rocker_port,
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enum switchdev_trans trans,
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struct switchdev_obj_fdb *fdb)
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{
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__be16 vlan_id = rocker_port_vid_to_vlan(rocker_port, fdb->vid, NULL);
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int flags = 0;
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if (!rocker_port_is_bridged(rocker_port))
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return -EINVAL;
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return rocker_port_fdb(rocker_port, trans, fdb->addr, vlan_id, flags);
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}
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static int rocker_port_obj_add(struct net_device *dev,
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struct switchdev_obj *obj)
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{
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@ -4476,6 +4385,9 @@ static int rocker_port_obj_add(struct net_device *dev,
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htonl(fib4->dst), fib4->dst_len,
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fib4->fi, fib4->tb_id, 0);
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break;
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case SWITCHDEV_OBJ_PORT_FDB:
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err = rocker_port_fdb_add(rocker_port, obj->trans, &obj->u.fdb);
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break;
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default:
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err = -EOPNOTSUPP;
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break;
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@ -4513,6 +4425,19 @@ static int rocker_port_vlans_del(struct rocker_port *rocker_port,
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return 0;
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}
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static int rocker_port_fdb_del(struct rocker_port *rocker_port,
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enum switchdev_trans trans,
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struct switchdev_obj_fdb *fdb)
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{
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__be16 vlan_id = rocker_port_vid_to_vlan(rocker_port, fdb->vid, NULL);
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int flags = ROCKER_OP_FLAG_REMOVE;
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if (!rocker_port_is_bridged(rocker_port))
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return -EINVAL;
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return rocker_port_fdb(rocker_port, trans, fdb->addr, vlan_id, flags);
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}
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static int rocker_port_obj_del(struct net_device *dev,
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struct switchdev_obj *obj)
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{
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@ -4531,6 +4456,54 @@ static int rocker_port_obj_del(struct net_device *dev,
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fib4->fi, fib4->tb_id,
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ROCKER_OP_FLAG_REMOVE);
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break;
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case SWITCHDEV_OBJ_PORT_FDB:
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err = rocker_port_fdb_del(rocker_port, obj->trans, &obj->u.fdb);
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break;
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default:
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err = -EOPNOTSUPP;
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break;
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}
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return err;
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}
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static int rocker_port_fdb_dump(struct rocker_port *rocker_port,
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struct switchdev_obj *obj)
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{
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struct rocker *rocker = rocker_port->rocker;
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struct switchdev_obj_fdb *fdb = &obj->u.fdb;
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struct rocker_fdb_tbl_entry *found;
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struct hlist_node *tmp;
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unsigned long lock_flags;
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int bkt;
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int err = 0;
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spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags);
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hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, found, entry) {
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if (found->key.pport != rocker_port->pport)
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continue;
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fdb->addr = found->key.addr;
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fdb->vid = rocker_port_vlan_to_vid(rocker_port,
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found->key.vlan_id);
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err = obj->cb(rocker_port->dev, obj);
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if (err)
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break;
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}
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spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags);
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return err;
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}
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static int rocker_port_obj_dump(struct net_device *dev,
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struct switchdev_obj *obj)
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{
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struct rocker_port *rocker_port = netdev_priv(dev);
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int err = 0;
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switch (obj->id) {
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case SWITCHDEV_OBJ_PORT_FDB:
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err = rocker_port_fdb_dump(rocker_port, obj);
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break;
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default:
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err = -EOPNOTSUPP;
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break;
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@ -4544,6 +4517,7 @@ static const struct switchdev_ops rocker_port_switchdev_ops = {
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.switchdev_port_attr_set = rocker_port_attr_set,
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.switchdev_port_obj_add = rocker_port_obj_add,
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.switchdev_port_obj_del = rocker_port_obj_del,
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.switchdev_port_obj_dump = rocker_port_obj_dump,
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};
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/********************
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@ -1980,6 +1980,9 @@ static const struct net_device_ops team_netdev_ops = {
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.ndo_bridge_setlink = switchdev_port_bridge_setlink,
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.ndo_bridge_getlink = switchdev_port_bridge_getlink,
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.ndo_bridge_dellink = switchdev_port_bridge_dellink,
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.ndo_fdb_add = switchdev_port_fdb_add,
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.ndo_fdb_del = switchdev_port_fdb_del,
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.ndo_fdb_dump = switchdev_port_fdb_dump,
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.ndo_features_check = passthru_features_check,
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};
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@ -47,11 +47,13 @@ enum switchdev_obj_id {
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SWITCHDEV_OBJ_UNDEFINED,
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SWITCHDEV_OBJ_PORT_VLAN,
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SWITCHDEV_OBJ_IPV4_FIB,
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SWITCHDEV_OBJ_PORT_FDB,
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};
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struct switchdev_obj {
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enum switchdev_obj_id id;
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enum switchdev_trans trans;
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int (*cb)(struct net_device *dev, struct switchdev_obj *obj);
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union {
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struct switchdev_obj_vlan { /* PORT_VLAN */
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u16 flags;
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@ -67,6 +69,10 @@ struct switchdev_obj {
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u32 nlflags;
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u32 tb_id;
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} ipv4_fib;
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struct switchdev_obj_fdb { /* PORT_FDB */
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const unsigned char *addr;
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u16 vid;
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} fdb;
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} u;
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};
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@ -80,6 +86,8 @@ struct switchdev_obj {
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* @switchdev_port_obj_add: Add an object to port (see switchdev_obj).
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*
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* @switchdev_port_obj_del: Delete an object from port (see switchdev_obj).
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*
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* @switchdev_port_obj_dump: Dump port objects (see switchdev_obj).
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*/
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struct switchdev_ops {
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int (*switchdev_port_attr_get)(struct net_device *dev,
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@ -90,6 +98,8 @@ struct switchdev_ops {
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struct switchdev_obj *obj);
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int (*switchdev_port_obj_del)(struct net_device *dev,
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struct switchdev_obj *obj);
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int (*switchdev_port_obj_dump)(struct net_device *dev,
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struct switchdev_obj *obj);
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};
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enum switchdev_notifier_type {
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@ -121,6 +131,7 @@ int switchdev_port_attr_set(struct net_device *dev,
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struct switchdev_attr *attr);
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int switchdev_port_obj_add(struct net_device *dev, struct switchdev_obj *obj);
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int switchdev_port_obj_del(struct net_device *dev, struct switchdev_obj *obj);
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int switchdev_port_obj_dump(struct net_device *dev, struct switchdev_obj *obj);
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int register_switchdev_notifier(struct notifier_block *nb);
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int unregister_switchdev_notifier(struct notifier_block *nb);
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int call_switchdev_notifiers(unsigned long val, struct net_device *dev,
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@ -137,6 +148,15 @@ int switchdev_fib_ipv4_add(u32 dst, int dst_len, struct fib_info *fi,
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int switchdev_fib_ipv4_del(u32 dst, int dst_len, struct fib_info *fi,
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u8 tos, u8 type, u32 tb_id);
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void switchdev_fib_ipv4_abort(struct fib_info *fi);
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int switchdev_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
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struct net_device *dev, const unsigned char *addr,
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u16 vid, u16 nlm_flags);
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int switchdev_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
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struct net_device *dev, const unsigned char *addr,
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u16 vid);
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int switchdev_port_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb,
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struct net_device *dev,
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struct net_device *filter_dev, int idx);
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#else
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@ -164,6 +184,12 @@ static inline int switchdev_port_obj_del(struct net_device *dev,
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return -EOPNOTSUPP;
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}
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static inline int switchdev_port_obj_dump(struct net_device *dev,
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struct switchdev_obj *obj)
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{
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return -EOPNOTSUPP;
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}
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static inline int register_switchdev_notifier(struct notifier_block *nb)
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{
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return 0;
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@ -221,6 +247,30 @@ static inline void switchdev_fib_ipv4_abort(struct fib_info *fi)
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{
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}
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static inline int switchdev_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
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struct net_device *dev,
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const unsigned char *addr,
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u16 vid, u16 nlm_flags)
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{
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return -EOPNOTSUPP;
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}
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static inline int switchdev_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
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struct net_device *dev,
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const unsigned char *addr, u16 vid)
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{
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return -EOPNOTSUPP;
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}
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static inline int switchdev_port_fdb_dump(struct sk_buff *skb,
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struct netlink_callback *cb,
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struct net_device *dev,
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struct net_device *filter_dev,
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int idx)
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{
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return -EOPNOTSUPP;
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}
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#endif
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#endif /* _LINUX_SWITCHDEV_H_ */
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@ -296,6 +296,36 @@ int switchdev_port_obj_del(struct net_device *dev, struct switchdev_obj *obj)
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}
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EXPORT_SYMBOL_GPL(switchdev_port_obj_del);
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/**
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* switchdev_port_obj_dump - Dump port objects
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*
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* @dev: port device
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* @obj: object to dump
|
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*/
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int switchdev_port_obj_dump(struct net_device *dev, struct switchdev_obj *obj)
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{
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const struct switchdev_ops *ops = dev->switchdev_ops;
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struct net_device *lower_dev;
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struct list_head *iter;
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int err = -EOPNOTSUPP;
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if (ops && ops->switchdev_port_obj_dump)
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return ops->switchdev_port_obj_dump(dev, obj);
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|
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/* Switch device port(s) may be stacked under
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* bond/team/vlan dev, so recurse down to dump objects on
|
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* first port at bottom of stack.
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*/
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netdev_for_each_lower_dev(dev, lower_dev, iter) {
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err = switchdev_port_obj_dump(lower_dev, obj);
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break;
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}
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return err;
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}
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EXPORT_SYMBOL_GPL(switchdev_port_obj_dump);
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static DEFINE_MUTEX(switchdev_mutex);
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static RAW_NOTIFIER_HEAD(switchdev_notif_chain);
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|
|
@ -566,6 +596,151 @@ int switchdev_port_bridge_dellink(struct net_device *dev,
|
|||
}
|
||||
EXPORT_SYMBOL_GPL(switchdev_port_bridge_dellink);
|
||||
|
||||
/**
|
||||
* switchdev_port_fdb_add - Add FDB (MAC/VLAN) entry to port
|
||||
*
|
||||
* @ndmsg: netlink hdr
|
||||
* @nlattr: netlink attributes
|
||||
* @dev: port device
|
||||
* @addr: MAC address to add
|
||||
* @vid: VLAN to add
|
||||
*
|
||||
* Add FDB entry to switch device.
|
||||
*/
|
||||
int switchdev_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
|
||||
struct net_device *dev, const unsigned char *addr,
|
||||
u16 vid, u16 nlm_flags)
|
||||
{
|
||||
struct switchdev_obj obj = {
|
||||
.id = SWITCHDEV_OBJ_PORT_FDB,
|
||||
.u.fdb = {
|
||||
.addr = addr,
|
||||
.vid = vid,
|
||||
},
|
||||
};
|
||||
|
||||
return switchdev_port_obj_add(dev, &obj);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(switchdev_port_fdb_add);
|
||||
|
||||
/**
|
||||
* switchdev_port_fdb_del - Delete FDB (MAC/VLAN) entry from port
|
||||
*
|
||||
* @ndmsg: netlink hdr
|
||||
* @nlattr: netlink attributes
|
||||
* @dev: port device
|
||||
* @addr: MAC address to delete
|
||||
* @vid: VLAN to delete
|
||||
*
|
||||
* Delete FDB entry from switch device.
|
||||
*/
|
||||
int switchdev_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
|
||||
struct net_device *dev, const unsigned char *addr,
|
||||
u16 vid)
|
||||
{
|
||||
struct switchdev_obj obj = {
|
||||
.id = SWITCHDEV_OBJ_PORT_FDB,
|
||||
.u.fdb = {
|
||||
.addr = addr,
|
||||
.vid = vid,
|
||||
},
|
||||
};
|
||||
|
||||
return switchdev_port_obj_del(dev, &obj);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(switchdev_port_fdb_del);
|
||||
|
||||
struct switchdev_fdb_dump {
|
||||
struct switchdev_obj obj;
|
||||
struct sk_buff *skb;
|
||||
struct netlink_callback *cb;
|
||||
struct net_device *filter_dev;
|
||||
int idx;
|
||||
};
|
||||
|
||||
static int switchdev_port_fdb_dump_cb(struct net_device *dev,
|
||||
struct switchdev_obj *obj)
|
||||
{
|
||||
struct switchdev_fdb_dump *dump =
|
||||
container_of(obj, struct switchdev_fdb_dump, obj);
|
||||
u32 portid = NETLINK_CB(dump->cb->skb).portid;
|
||||
u32 seq = dump->cb->nlh->nlmsg_seq;
|
||||
struct nlmsghdr *nlh;
|
||||
struct ndmsg *ndm;
|
||||
struct net_device *master = netdev_master_upper_dev_get(dev);
|
||||
|
||||
if (dump->idx < dump->cb->args[0])
|
||||
goto skip;
|
||||
|
||||
if (master && dump->filter_dev != master)
|
||||
goto skip;
|
||||
|
||||
nlh = nlmsg_put(dump->skb, portid, seq, RTM_NEWNEIGH,
|
||||
sizeof(*ndm), NLM_F_MULTI);
|
||||
if (!nlh)
|
||||
return -EMSGSIZE;
|
||||
|
||||
ndm = nlmsg_data(nlh);
|
||||
ndm->ndm_family = AF_BRIDGE;
|
||||
ndm->ndm_pad1 = 0;
|
||||
ndm->ndm_pad2 = 0;
|
||||
ndm->ndm_flags = NTF_SELF;
|
||||
ndm->ndm_type = 0;
|
||||
ndm->ndm_ifindex = dev->ifindex;
|
||||
ndm->ndm_state = NUD_REACHABLE;
|
||||
|
||||
if (nla_put(dump->skb, NDA_LLADDR, ETH_ALEN, obj->u.fdb.addr))
|
||||
goto nla_put_failure;
|
||||
|
||||
if (obj->u.fdb.vid && nla_put_u16(dump->skb, NDA_VLAN, obj->u.fdb.vid))
|
||||
goto nla_put_failure;
|
||||
|
||||
nlmsg_end(dump->skb, nlh);
|
||||
|
||||
skip:
|
||||
dump->idx++;
|
||||
return 0;
|
||||
|
||||
nla_put_failure:
|
||||
nlmsg_cancel(dump->skb, nlh);
|
||||
return -EMSGSIZE;
|
||||
}
|
||||
|
||||
/**
|
||||
* switchdev_port_fdb_dump - Dump port FDB (MAC/VLAN) entries
|
||||
*
|
||||
* @skb: netlink skb
|
||||
* @cb: netlink callback
|
||||
* @dev: port device
|
||||
* @filter_dev: filter device
|
||||
* @idx:
|
||||
*
|
||||
* Delete FDB entry from switch device.
|
||||
*/
|
||||
int switchdev_port_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb,
|
||||
struct net_device *dev,
|
||||
struct net_device *filter_dev, int idx)
|
||||
{
|
||||
struct switchdev_fdb_dump dump = {
|
||||
.obj = {
|
||||
.id = SWITCHDEV_OBJ_PORT_FDB,
|
||||
.cb = switchdev_port_fdb_dump_cb,
|
||||
},
|
||||
.skb = skb,
|
||||
.cb = cb,
|
||||
.filter_dev = filter_dev,
|
||||
.idx = idx,
|
||||
};
|
||||
int err;
|
||||
|
||||
err = switchdev_port_obj_dump(dev, &dump.obj);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
return dump.idx;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(switchdev_port_fdb_dump);
|
||||
|
||||
static struct net_device *switchdev_get_lowest_dev(struct net_device *dev)
|
||||
{
|
||||
const struct switchdev_ops *ops = dev->switchdev_ops;
|
||||
|
|
|
|||
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