1243a2e63SVlad Yasevich #include <linux/kernel.h> 2243a2e63SVlad Yasevich #include <linux/netdevice.h> 3243a2e63SVlad Yasevich #include <linux/rtnetlink.h> 4243a2e63SVlad Yasevich #include <linux/slab.h> 57f109539SScott Feldman #include <net/switchdev.h> 6243a2e63SVlad Yasevich 7243a2e63SVlad Yasevich #include "br_private.h" 8efa5356bSRoopa Prabhu #include "br_private_tunnel.h" 9243a2e63SVlad Yasevich 102594e906SNikolay Aleksandrov static inline int br_vlan_cmp(struct rhashtable_compare_arg *arg, 112594e906SNikolay Aleksandrov const void *ptr) 12552406c4SVlad Yasevich { 132594e906SNikolay Aleksandrov const struct net_bridge_vlan *vle = ptr; 142594e906SNikolay Aleksandrov u16 vid = *(u16 *)arg->key; 152594e906SNikolay Aleksandrov 162594e906SNikolay Aleksandrov return vle->vid != vid; 172594e906SNikolay Aleksandrov } 182594e906SNikolay Aleksandrov 192594e906SNikolay Aleksandrov static const struct rhashtable_params br_vlan_rht_params = { 202594e906SNikolay Aleksandrov .head_offset = offsetof(struct net_bridge_vlan, vnode), 212594e906SNikolay Aleksandrov .key_offset = offsetof(struct net_bridge_vlan, vid), 222594e906SNikolay Aleksandrov .key_len = sizeof(u16), 238af78b64SNikolay Aleksandrov .nelem_hint = 3, 248af78b64SNikolay Aleksandrov .locks_mul = 1, 252594e906SNikolay Aleksandrov .max_size = VLAN_N_VID, 262594e906SNikolay Aleksandrov .obj_cmpfn = br_vlan_cmp, 272594e906SNikolay Aleksandrov .automatic_shrinking = true, 282594e906SNikolay Aleksandrov }; 292594e906SNikolay Aleksandrov 302594e906SNikolay Aleksandrov static struct net_bridge_vlan *br_vlan_lookup(struct rhashtable *tbl, u16 vid) 312594e906SNikolay Aleksandrov { 322594e906SNikolay Aleksandrov return rhashtable_lookup_fast(tbl, &vid, br_vlan_rht_params); 332594e906SNikolay Aleksandrov } 342594e906SNikolay Aleksandrov 35f418af63SNikolay Aleksandrov static bool __vlan_add_pvid(struct net_bridge_vlan_group *vg, u16 vid) 362594e906SNikolay Aleksandrov { 3777751ee8SNikolay Aleksandrov if (vg->pvid == vid) 38f418af63SNikolay Aleksandrov return false; 39552406c4SVlad Yasevich 40552406c4SVlad Yasevich smp_wmb(); 4177751ee8SNikolay Aleksandrov vg->pvid = vid; 42f418af63SNikolay Aleksandrov 43f418af63SNikolay Aleksandrov return true; 44552406c4SVlad Yasevich } 45552406c4SVlad Yasevich 46f418af63SNikolay Aleksandrov static bool __vlan_delete_pvid(struct net_bridge_vlan_group *vg, u16 vid) 47552406c4SVlad Yasevich { 4877751ee8SNikolay Aleksandrov if (vg->pvid != vid) 49f418af63SNikolay Aleksandrov return false; 50552406c4SVlad Yasevich 51552406c4SVlad Yasevich smp_wmb(); 5277751ee8SNikolay Aleksandrov vg->pvid = 0; 53f418af63SNikolay Aleksandrov 54f418af63SNikolay Aleksandrov return true; 55552406c4SVlad Yasevich } 56552406c4SVlad Yasevich 57f418af63SNikolay Aleksandrov /* return true if anything changed, false otherwise */ 58f418af63SNikolay Aleksandrov static bool __vlan_add_flags(struct net_bridge_vlan *v, u16 flags) 5935e03f3aSVlad Yasevich { 6077751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg; 61f418af63SNikolay Aleksandrov u16 old_flags = v->flags; 62f418af63SNikolay Aleksandrov bool ret; 6377751ee8SNikolay Aleksandrov 642594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) 65907b1e6eSNikolay Aleksandrov vg = br_vlan_group(v->br); 66635126b7SVlad Yasevich else 67907b1e6eSNikolay Aleksandrov vg = nbp_vlan_group(v->port); 6877751ee8SNikolay Aleksandrov 6977751ee8SNikolay Aleksandrov if (flags & BRIDGE_VLAN_INFO_PVID) 70f418af63SNikolay Aleksandrov ret = __vlan_add_pvid(vg, v->vid); 712594e906SNikolay Aleksandrov else 72f418af63SNikolay Aleksandrov ret = __vlan_delete_pvid(vg, v->vid); 7335e03f3aSVlad Yasevich 7435e03f3aSVlad Yasevich if (flags & BRIDGE_VLAN_INFO_UNTAGGED) 752594e906SNikolay Aleksandrov v->flags |= BRIDGE_VLAN_INFO_UNTAGGED; 76635126b7SVlad Yasevich else 772594e906SNikolay Aleksandrov v->flags &= ~BRIDGE_VLAN_INFO_UNTAGGED; 78f418af63SNikolay Aleksandrov 79f418af63SNikolay Aleksandrov return ret || !!(old_flags ^ v->flags); 8035e03f3aSVlad Yasevich } 8135e03f3aSVlad Yasevich 827f109539SScott Feldman static int __vlan_vid_add(struct net_device *dev, struct net_bridge *br, 837f109539SScott Feldman u16 vid, u16 flags) 847f109539SScott Feldman { 850944d6b5SJiri Pirko int err; 867f109539SScott Feldman 870944d6b5SJiri Pirko /* Try switchdev op first. In case it is not supported, fallback to 880944d6b5SJiri Pirko * 8021q add. 890944d6b5SJiri Pirko */ 90d66e4348SPetr Machata err = br_switchdev_port_vlan_add(dev, vid, flags); 917f109539SScott Feldman if (err == -EOPNOTSUPP) 920944d6b5SJiri Pirko return vlan_vid_add(dev, br->vlan_proto, vid); 937f109539SScott Feldman return err; 947f109539SScott Feldman } 957f109539SScott Feldman 962594e906SNikolay Aleksandrov static void __vlan_add_list(struct net_bridge_vlan *v) 97243a2e63SVlad Yasevich { 98907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group *vg; 992594e906SNikolay Aleksandrov struct list_head *headp, *hpos; 1002594e906SNikolay Aleksandrov struct net_bridge_vlan *vent; 101243a2e63SVlad Yasevich 102907b1e6eSNikolay Aleksandrov if (br_vlan_is_master(v)) 103907b1e6eSNikolay Aleksandrov vg = br_vlan_group(v->br); 104907b1e6eSNikolay Aleksandrov else 105907b1e6eSNikolay Aleksandrov vg = nbp_vlan_group(v->port); 106907b1e6eSNikolay Aleksandrov 107907b1e6eSNikolay Aleksandrov headp = &vg->vlan_list; 1082594e906SNikolay Aleksandrov list_for_each_prev(hpos, headp) { 1092594e906SNikolay Aleksandrov vent = list_entry(hpos, struct net_bridge_vlan, vlist); 1102594e906SNikolay Aleksandrov if (v->vid < vent->vid) 1112594e906SNikolay Aleksandrov continue; 1122594e906SNikolay Aleksandrov else 1132594e906SNikolay Aleksandrov break; 1142594e906SNikolay Aleksandrov } 115586c2b57SNikolay Aleksandrov list_add_rcu(&v->vlist, hpos); 116552406c4SVlad Yasevich } 117243a2e63SVlad Yasevich 1182594e906SNikolay Aleksandrov static void __vlan_del_list(struct net_bridge_vlan *v) 1192594e906SNikolay Aleksandrov { 120586c2b57SNikolay Aleksandrov list_del_rcu(&v->vlist); 121243a2e63SVlad Yasevich } 122243a2e63SVlad Yasevich 123bf361ad3SVivien Didelot static int __vlan_vid_del(struct net_device *dev, struct net_bridge *br, 1247f109539SScott Feldman u16 vid) 1257f109539SScott Feldman { 1260944d6b5SJiri Pirko int err; 1277f109539SScott Feldman 1280944d6b5SJiri Pirko /* Try switchdev op first. In case it is not supported, fallback to 1290944d6b5SJiri Pirko * 8021q del. 1300944d6b5SJiri Pirko */ 131d66e4348SPetr Machata err = br_switchdev_port_vlan_del(dev, vid); 1320944d6b5SJiri Pirko if (err == -EOPNOTSUPP) { 1330944d6b5SJiri Pirko vlan_vid_del(dev, br->vlan_proto, vid); 1340944d6b5SJiri Pirko return 0; 1357f109539SScott Feldman } 136bf361ad3SVivien Didelot return err; 1377f109539SScott Feldman } 1387f109539SScott Feldman 139f8ed289fSNikolay Aleksandrov /* Returns a master vlan, if it didn't exist it gets created. In all cases a 140f8ed289fSNikolay Aleksandrov * a reference is taken to the master vlan before returning. 141f8ed289fSNikolay Aleksandrov */ 142f8ed289fSNikolay Aleksandrov static struct net_bridge_vlan *br_vlan_get_master(struct net_bridge *br, u16 vid) 143f8ed289fSNikolay Aleksandrov { 144907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group *vg; 145f8ed289fSNikolay Aleksandrov struct net_bridge_vlan *masterv; 146f8ed289fSNikolay Aleksandrov 147907b1e6eSNikolay Aleksandrov vg = br_vlan_group(br); 148907b1e6eSNikolay Aleksandrov masterv = br_vlan_find(vg, vid); 149f8ed289fSNikolay Aleksandrov if (!masterv) { 150f418af63SNikolay Aleksandrov bool changed; 151f418af63SNikolay Aleksandrov 152f8ed289fSNikolay Aleksandrov /* missing global ctx, create it now */ 153f418af63SNikolay Aleksandrov if (br_vlan_add(br, vid, 0, &changed)) 154f8ed289fSNikolay Aleksandrov return NULL; 155907b1e6eSNikolay Aleksandrov masterv = br_vlan_find(vg, vid); 156f8ed289fSNikolay Aleksandrov if (WARN_ON(!masterv)) 157f8ed289fSNikolay Aleksandrov return NULL; 1580e5a82efSIdo Schimmel refcount_set(&masterv->refcnt, 1); 1590e5a82efSIdo Schimmel return masterv; 160f8ed289fSNikolay Aleksandrov } 16125127759SReshetova, Elena refcount_inc(&masterv->refcnt); 162f8ed289fSNikolay Aleksandrov 163f8ed289fSNikolay Aleksandrov return masterv; 164f8ed289fSNikolay Aleksandrov } 165f8ed289fSNikolay Aleksandrov 1666dada9b1SNikolay Aleksandrov static void br_master_vlan_rcu_free(struct rcu_head *rcu) 1676dada9b1SNikolay Aleksandrov { 1686dada9b1SNikolay Aleksandrov struct net_bridge_vlan *v; 1696dada9b1SNikolay Aleksandrov 1706dada9b1SNikolay Aleksandrov v = container_of(rcu, struct net_bridge_vlan, rcu); 1716dada9b1SNikolay Aleksandrov WARN_ON(!br_vlan_is_master(v)); 1726dada9b1SNikolay Aleksandrov free_percpu(v->stats); 1736dada9b1SNikolay Aleksandrov v->stats = NULL; 1746dada9b1SNikolay Aleksandrov kfree(v); 1756dada9b1SNikolay Aleksandrov } 1766dada9b1SNikolay Aleksandrov 177f8ed289fSNikolay Aleksandrov static void br_vlan_put_master(struct net_bridge_vlan *masterv) 178f8ed289fSNikolay Aleksandrov { 179907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group *vg; 180907b1e6eSNikolay Aleksandrov 181f8ed289fSNikolay Aleksandrov if (!br_vlan_is_master(masterv)) 182f8ed289fSNikolay Aleksandrov return; 183f8ed289fSNikolay Aleksandrov 184907b1e6eSNikolay Aleksandrov vg = br_vlan_group(masterv->br); 18525127759SReshetova, Elena if (refcount_dec_and_test(&masterv->refcnt)) { 186907b1e6eSNikolay Aleksandrov rhashtable_remove_fast(&vg->vlan_hash, 187f8ed289fSNikolay Aleksandrov &masterv->vnode, br_vlan_rht_params); 188f8ed289fSNikolay Aleksandrov __vlan_del_list(masterv); 1896dada9b1SNikolay Aleksandrov call_rcu(&masterv->rcu, br_master_vlan_rcu_free); 190f8ed289fSNikolay Aleksandrov } 191f8ed289fSNikolay Aleksandrov } 192f8ed289fSNikolay Aleksandrov 1932594e906SNikolay Aleksandrov /* This is the shared VLAN add function which works for both ports and bridge 1942594e906SNikolay Aleksandrov * devices. There are four possible calls to this function in terms of the 1952594e906SNikolay Aleksandrov * vlan entry type: 1962594e906SNikolay Aleksandrov * 1. vlan is being added on a port (no master flags, global entry exists) 197ddd611d3SIdo Schimmel * 2. vlan is being added on a bridge (both master and brentry flags) 1982594e906SNikolay Aleksandrov * 3. vlan is being added on a port, but a global entry didn't exist which 199ddd611d3SIdo Schimmel * is being created right now (master flag set, brentry flag unset), the 2002594e906SNikolay Aleksandrov * global entry is used for global per-vlan features, but not for filtering 201ddd611d3SIdo Schimmel * 4. same as 3 but with both master and brentry flags set so the entry 2022594e906SNikolay Aleksandrov * will be used for filtering in both the port and the bridge 2032594e906SNikolay Aleksandrov */ 2042594e906SNikolay Aleksandrov static int __vlan_add(struct net_bridge_vlan *v, u16 flags) 205243a2e63SVlad Yasevich { 2062594e906SNikolay Aleksandrov struct net_bridge_vlan *masterv = NULL; 2072594e906SNikolay Aleksandrov struct net_bridge_port *p = NULL; 2086be144f6SNikolay Aleksandrov struct net_bridge_vlan_group *vg; 2092594e906SNikolay Aleksandrov struct net_device *dev; 2102594e906SNikolay Aleksandrov struct net_bridge *br; 211bf361ad3SVivien Didelot int err; 212bf361ad3SVivien Didelot 2132594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 2142594e906SNikolay Aleksandrov br = v->br; 2152594e906SNikolay Aleksandrov dev = br->dev; 216907b1e6eSNikolay Aleksandrov vg = br_vlan_group(br); 2172594e906SNikolay Aleksandrov } else { 2182594e906SNikolay Aleksandrov p = v->port; 2192594e906SNikolay Aleksandrov br = p->br; 2202594e906SNikolay Aleksandrov dev = p->dev; 221907b1e6eSNikolay Aleksandrov vg = nbp_vlan_group(p); 2222594e906SNikolay Aleksandrov } 2232594e906SNikolay Aleksandrov 2242594e906SNikolay Aleksandrov if (p) { 2252594e906SNikolay Aleksandrov /* Add VLAN to the device filter if it is supported. 2262594e906SNikolay Aleksandrov * This ensures tagged traffic enters the bridge when 2272594e906SNikolay Aleksandrov * promiscuous mode is disabled by br_manage_promisc(). 2282594e906SNikolay Aleksandrov */ 2292594e906SNikolay Aleksandrov err = __vlan_vid_add(dev, br, v->vid, flags); 230bf361ad3SVivien Didelot if (err) 2312594e906SNikolay Aleksandrov goto out; 2322594e906SNikolay Aleksandrov 2332594e906SNikolay Aleksandrov /* need to work on the master vlan too */ 2342594e906SNikolay Aleksandrov if (flags & BRIDGE_VLAN_INFO_MASTER) { 235f418af63SNikolay Aleksandrov bool changed; 236f418af63SNikolay Aleksandrov 237f418af63SNikolay Aleksandrov err = br_vlan_add(br, v->vid, 238f418af63SNikolay Aleksandrov flags | BRIDGE_VLAN_INFO_BRENTRY, 239f418af63SNikolay Aleksandrov &changed); 2402594e906SNikolay Aleksandrov if (err) 2412594e906SNikolay Aleksandrov goto out_filt; 2422594e906SNikolay Aleksandrov } 2432594e906SNikolay Aleksandrov 244f8ed289fSNikolay Aleksandrov masterv = br_vlan_get_master(br, v->vid); 245f8ed289fSNikolay Aleksandrov if (!masterv) 2462594e906SNikolay Aleksandrov goto out_filt; 2472594e906SNikolay Aleksandrov v->brvlan = masterv; 2486dada9b1SNikolay Aleksandrov v->stats = masterv->stats; 2499c86ce2cSPetr Machata } else { 2509c86ce2cSPetr Machata err = br_switchdev_port_vlan_add(dev, v->vid, flags); 2519c86ce2cSPetr Machata if (err && err != -EOPNOTSUPP) 2529c86ce2cSPetr Machata goto out; 2532594e906SNikolay Aleksandrov } 2542594e906SNikolay Aleksandrov 2556be144f6SNikolay Aleksandrov /* Add the dev mac and count the vlan only if it's usable */ 2562594e906SNikolay Aleksandrov if (br_vlan_should_use(v)) { 2572594e906SNikolay Aleksandrov err = br_fdb_insert(br, p, dev->dev_addr, v->vid); 2582594e906SNikolay Aleksandrov if (err) { 2592594e906SNikolay Aleksandrov br_err(br, "failed insert local address into bridge forwarding table\n"); 2602594e906SNikolay Aleksandrov goto out_filt; 2612594e906SNikolay Aleksandrov } 2626be144f6SNikolay Aleksandrov vg->num_vlans++; 2632594e906SNikolay Aleksandrov } 2642594e906SNikolay Aleksandrov 2656be144f6SNikolay Aleksandrov err = rhashtable_lookup_insert_fast(&vg->vlan_hash, &v->vnode, 2666be144f6SNikolay Aleksandrov br_vlan_rht_params); 2672594e906SNikolay Aleksandrov if (err) 2682594e906SNikolay Aleksandrov goto out_fdb_insert; 2692594e906SNikolay Aleksandrov 2702594e906SNikolay Aleksandrov __vlan_add_list(v); 2712594e906SNikolay Aleksandrov __vlan_add_flags(v, flags); 2722594e906SNikolay Aleksandrov out: 2732594e906SNikolay Aleksandrov return err; 2742594e906SNikolay Aleksandrov 2752594e906SNikolay Aleksandrov out_fdb_insert: 2766be144f6SNikolay Aleksandrov if (br_vlan_should_use(v)) { 2776be144f6SNikolay Aleksandrov br_fdb_find_delete_local(br, p, dev->dev_addr, v->vid); 2786be144f6SNikolay Aleksandrov vg->num_vlans--; 2796be144f6SNikolay Aleksandrov } 2802594e906SNikolay Aleksandrov 2812594e906SNikolay Aleksandrov out_filt: 2822594e906SNikolay Aleksandrov if (p) { 2832594e906SNikolay Aleksandrov __vlan_vid_del(dev, br, v->vid); 2842594e906SNikolay Aleksandrov if (masterv) { 285f8ed289fSNikolay Aleksandrov br_vlan_put_master(masterv); 2862594e906SNikolay Aleksandrov v->brvlan = NULL; 2872594e906SNikolay Aleksandrov } 2889c86ce2cSPetr Machata } else { 2899c86ce2cSPetr Machata br_switchdev_port_vlan_del(dev, v->vid); 2902594e906SNikolay Aleksandrov } 2912594e906SNikolay Aleksandrov 2922594e906SNikolay Aleksandrov goto out; 2932594e906SNikolay Aleksandrov } 2942594e906SNikolay Aleksandrov 2952594e906SNikolay Aleksandrov static int __vlan_del(struct net_bridge_vlan *v) 2962594e906SNikolay Aleksandrov { 2972594e906SNikolay Aleksandrov struct net_bridge_vlan *masterv = v; 29877751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg; 2992594e906SNikolay Aleksandrov struct net_bridge_port *p = NULL; 3002594e906SNikolay Aleksandrov int err = 0; 3012594e906SNikolay Aleksandrov 3022594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 303907b1e6eSNikolay Aleksandrov vg = br_vlan_group(v->br); 3042594e906SNikolay Aleksandrov } else { 3052594e906SNikolay Aleksandrov p = v->port; 306907b1e6eSNikolay Aleksandrov vg = nbp_vlan_group(v->port); 3072594e906SNikolay Aleksandrov masterv = v->brvlan; 3082594e906SNikolay Aleksandrov } 3092594e906SNikolay Aleksandrov 31077751ee8SNikolay Aleksandrov __vlan_delete_pvid(vg, v->vid); 3112594e906SNikolay Aleksandrov if (p) { 3122594e906SNikolay Aleksandrov err = __vlan_vid_del(p->dev, p->br, v->vid); 3132594e906SNikolay Aleksandrov if (err) 3142594e906SNikolay Aleksandrov goto out; 3159c86ce2cSPetr Machata } else { 3169c86ce2cSPetr Machata err = br_switchdev_port_vlan_del(v->br->dev, v->vid); 3179c86ce2cSPetr Machata if (err && err != -EOPNOTSUPP) 3189c86ce2cSPetr Machata goto out; 3199c86ce2cSPetr Machata err = 0; 3202594e906SNikolay Aleksandrov } 3212594e906SNikolay Aleksandrov 3226be144f6SNikolay Aleksandrov if (br_vlan_should_use(v)) { 3232594e906SNikolay Aleksandrov v->flags &= ~BRIDGE_VLAN_INFO_BRENTRY; 3246be144f6SNikolay Aleksandrov vg->num_vlans--; 3252594e906SNikolay Aleksandrov } 3262594e906SNikolay Aleksandrov 3272594e906SNikolay Aleksandrov if (masterv != v) { 328efa5356bSRoopa Prabhu vlan_tunnel_info_del(vg, v); 32977751ee8SNikolay Aleksandrov rhashtable_remove_fast(&vg->vlan_hash, &v->vnode, 33077751ee8SNikolay Aleksandrov br_vlan_rht_params); 3312594e906SNikolay Aleksandrov __vlan_del_list(v); 3322594e906SNikolay Aleksandrov kfree_rcu(v, rcu); 3332594e906SNikolay Aleksandrov } 3342594e906SNikolay Aleksandrov 335f8ed289fSNikolay Aleksandrov br_vlan_put_master(masterv); 3362594e906SNikolay Aleksandrov out: 337bf361ad3SVivien Didelot return err; 3388580e211SToshiaki Makita } 339243a2e63SVlad Yasevich 340f409d0edSNikolay Aleksandrov static void __vlan_group_free(struct net_bridge_vlan_group *vg) 341f409d0edSNikolay Aleksandrov { 342f409d0edSNikolay Aleksandrov WARN_ON(!list_empty(&vg->vlan_list)); 343f409d0edSNikolay Aleksandrov rhashtable_destroy(&vg->vlan_hash); 344efa5356bSRoopa Prabhu vlan_tunnel_deinit(vg); 345f409d0edSNikolay Aleksandrov kfree(vg); 346f409d0edSNikolay Aleksandrov } 347f409d0edSNikolay Aleksandrov 348f409d0edSNikolay Aleksandrov static void __vlan_flush(struct net_bridge_vlan_group *vg) 349243a2e63SVlad Yasevich { 3502594e906SNikolay Aleksandrov struct net_bridge_vlan *vlan, *tmp; 3512594e906SNikolay Aleksandrov 352f409d0edSNikolay Aleksandrov __vlan_delete_pvid(vg, vg->pvid); 353f409d0edSNikolay Aleksandrov list_for_each_entry_safe(vlan, tmp, &vg->vlan_list, vlist) 3542594e906SNikolay Aleksandrov __vlan_del(vlan); 355243a2e63SVlad Yasevich } 356243a2e63SVlad Yasevich 35778851988SVlad Yasevich struct sk_buff *br_handle_vlan(struct net_bridge *br, 35811538d03SRoopa Prabhu const struct net_bridge_port *p, 3592594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 360a37b85c9SVlad Yasevich struct sk_buff *skb) 361a37b85c9SVlad Yasevich { 3626dada9b1SNikolay Aleksandrov struct br_vlan_stats *stats; 3632594e906SNikolay Aleksandrov struct net_bridge_vlan *v; 364a37b85c9SVlad Yasevich u16 vid; 365a37b85c9SVlad Yasevich 36620adfa1aSVlad Yasevich /* If this packet was not filtered at input, let it pass */ 36720adfa1aSVlad Yasevich if (!BR_INPUT_SKB_CB(skb)->vlan_filtered) 36878851988SVlad Yasevich goto out; 36978851988SVlad Yasevich 3702594e906SNikolay Aleksandrov /* At this point, we know that the frame was filtered and contains 3712594e906SNikolay Aleksandrov * a valid vlan id. If the vlan id has untagged flag set, 3722594e906SNikolay Aleksandrov * send untagged; otherwise, send tagged. 3732594e906SNikolay Aleksandrov */ 3742594e906SNikolay Aleksandrov br_vlan_get_tag(skb, &vid); 3752594e906SNikolay Aleksandrov v = br_vlan_find(vg, vid); 3762594e906SNikolay Aleksandrov /* Vlan entry must be configured at this point. The 377fc92f745SVlad Yasevich * only exception is the bridge is set in promisc mode and the 378fc92f745SVlad Yasevich * packet is destined for the bridge device. In this case 379fc92f745SVlad Yasevich * pass the packet as is. 380fc92f745SVlad Yasevich */ 3812594e906SNikolay Aleksandrov if (!v || !br_vlan_should_use(v)) { 382fc92f745SVlad Yasevich if ((br->dev->flags & IFF_PROMISC) && skb->dev == br->dev) { 383fc92f745SVlad Yasevich goto out; 384fc92f745SVlad Yasevich } else { 385fc92f745SVlad Yasevich kfree_skb(skb); 386fc92f745SVlad Yasevich return NULL; 387fc92f745SVlad Yasevich } 388fc92f745SVlad Yasevich } 389ae75767eSNikolay Aleksandrov if (br_opt_get(br, BROPT_VLAN_STATS_ENABLED)) { 3906dada9b1SNikolay Aleksandrov stats = this_cpu_ptr(v->stats); 3916dada9b1SNikolay Aleksandrov u64_stats_update_begin(&stats->syncp); 3926dada9b1SNikolay Aleksandrov stats->tx_bytes += skb->len; 3936dada9b1SNikolay Aleksandrov stats->tx_packets++; 3946dada9b1SNikolay Aleksandrov u64_stats_update_end(&stats->syncp); 3956dada9b1SNikolay Aleksandrov } 3966dada9b1SNikolay Aleksandrov 3972594e906SNikolay Aleksandrov if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED) 39899b192daSToshiaki Makita skb->vlan_tci = 0; 39911538d03SRoopa Prabhu 40011538d03SRoopa Prabhu if (p && (p->flags & BR_VLAN_TUNNEL) && 40111538d03SRoopa Prabhu br_handle_egress_vlan_tunnel(skb, v)) { 40211538d03SRoopa Prabhu kfree_skb(skb); 40311538d03SRoopa Prabhu return NULL; 40411538d03SRoopa Prabhu } 40578851988SVlad Yasevich out: 40678851988SVlad Yasevich return skb; 40778851988SVlad Yasevich } 40878851988SVlad Yasevich 40978851988SVlad Yasevich /* Called under RCU */ 4106dada9b1SNikolay Aleksandrov static bool __allowed_ingress(const struct net_bridge *br, 4116dada9b1SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 41278851988SVlad Yasevich struct sk_buff *skb, u16 *vid) 41378851988SVlad Yasevich { 4146dada9b1SNikolay Aleksandrov struct br_vlan_stats *stats; 4156dada9b1SNikolay Aleksandrov struct net_bridge_vlan *v; 4168580e211SToshiaki Makita bool tagged; 417a37b85c9SVlad Yasevich 41820adfa1aSVlad Yasevich BR_INPUT_SKB_CB(skb)->vlan_filtered = true; 41912464bb8SToshiaki Makita /* If vlan tx offload is disabled on bridge device and frame was 42012464bb8SToshiaki Makita * sent from vlan device on the bridge device, it does not have 42112464bb8SToshiaki Makita * HW accelerated vlan tag. 42212464bb8SToshiaki Makita */ 423df8a39deSJiri Pirko if (unlikely(!skb_vlan_tag_present(skb) && 4246dada9b1SNikolay Aleksandrov skb->protocol == br->vlan_proto)) { 4250d5501c1SVlad Yasevich skb = skb_vlan_untag(skb); 42612464bb8SToshiaki Makita if (unlikely(!skb)) 42712464bb8SToshiaki Makita return false; 42812464bb8SToshiaki Makita } 42912464bb8SToshiaki Makita 4308580e211SToshiaki Makita if (!br_vlan_get_tag(skb, vid)) { 4318580e211SToshiaki Makita /* Tagged frame */ 4326dada9b1SNikolay Aleksandrov if (skb->vlan_proto != br->vlan_proto) { 4338580e211SToshiaki Makita /* Protocol-mismatch, empty out vlan_tci for new tag */ 4348580e211SToshiaki Makita skb_push(skb, ETH_HLEN); 43562749e2cSJiri Pirko skb = vlan_insert_tag_set_proto(skb, skb->vlan_proto, 436df8a39deSJiri Pirko skb_vlan_tag_get(skb)); 4378580e211SToshiaki Makita if (unlikely(!skb)) 4388580e211SToshiaki Makita return false; 4398580e211SToshiaki Makita 4408580e211SToshiaki Makita skb_pull(skb, ETH_HLEN); 4418580e211SToshiaki Makita skb_reset_mac_len(skb); 4428580e211SToshiaki Makita *vid = 0; 4438580e211SToshiaki Makita tagged = false; 4448580e211SToshiaki Makita } else { 4458580e211SToshiaki Makita tagged = true; 4468580e211SToshiaki Makita } 4478580e211SToshiaki Makita } else { 4488580e211SToshiaki Makita /* Untagged frame */ 4498580e211SToshiaki Makita tagged = false; 4508580e211SToshiaki Makita } 4518580e211SToshiaki Makita 452b90356ceSToshiaki Makita if (!*vid) { 45377751ee8SNikolay Aleksandrov u16 pvid = br_get_pvid(vg); 45477751ee8SNikolay Aleksandrov 455b90356ceSToshiaki Makita /* Frame had a tag with VID 0 or did not have a tag. 456b90356ceSToshiaki Makita * See if pvid is set on this port. That tells us which 457b90356ceSToshiaki Makita * vlan untagged or priority-tagged traffic belongs to. 45878851988SVlad Yasevich */ 4593df6bf45SVlad Yasevich if (!pvid) 460eb707618SToshiaki Makita goto drop; 46178851988SVlad Yasevich 462b90356ceSToshiaki Makita /* PVID is set on this port. Any untagged or priority-tagged 463b90356ceSToshiaki Makita * ingress frame is considered to belong to this vlan. 46478851988SVlad Yasevich */ 465dfb5fa32SToshiaki Makita *vid = pvid; 4668580e211SToshiaki Makita if (likely(!tagged)) 467b90356ceSToshiaki Makita /* Untagged Frame. */ 4686dada9b1SNikolay Aleksandrov __vlan_hwaccel_put_tag(skb, br->vlan_proto, pvid); 469b90356ceSToshiaki Makita else 470b90356ceSToshiaki Makita /* Priority-tagged Frame. 471b90356ceSToshiaki Makita * At this point, We know that skb->vlan_tci had 472b90356ceSToshiaki Makita * VLAN_TAG_PRESENT bit and its VID field was 0x000. 473b90356ceSToshiaki Makita * We update only VID field and preserve PCP field. 474b90356ceSToshiaki Makita */ 475b90356ceSToshiaki Makita skb->vlan_tci |= pvid; 476b90356ceSToshiaki Makita 4776dada9b1SNikolay Aleksandrov /* if stats are disabled we can avoid the lookup */ 478ae75767eSNikolay Aleksandrov if (!br_opt_get(br, BROPT_VLAN_STATS_ENABLED)) 47978851988SVlad Yasevich return true; 48078851988SVlad Yasevich } 48177751ee8SNikolay Aleksandrov v = br_vlan_find(vg, *vid); 4826dada9b1SNikolay Aleksandrov if (!v || !br_vlan_should_use(v)) 4836dada9b1SNikolay Aleksandrov goto drop; 4846dada9b1SNikolay Aleksandrov 485ae75767eSNikolay Aleksandrov if (br_opt_get(br, BROPT_VLAN_STATS_ENABLED)) { 4866dada9b1SNikolay Aleksandrov stats = this_cpu_ptr(v->stats); 4876dada9b1SNikolay Aleksandrov u64_stats_update_begin(&stats->syncp); 4886dada9b1SNikolay Aleksandrov stats->rx_bytes += skb->len; 4896dada9b1SNikolay Aleksandrov stats->rx_packets++; 4906dada9b1SNikolay Aleksandrov u64_stats_update_end(&stats->syncp); 4916dada9b1SNikolay Aleksandrov } 4926dada9b1SNikolay Aleksandrov 493a37b85c9SVlad Yasevich return true; 4946dada9b1SNikolay Aleksandrov 495eb707618SToshiaki Makita drop: 496eb707618SToshiaki Makita kfree_skb(skb); 497a37b85c9SVlad Yasevich return false; 498a37b85c9SVlad Yasevich } 499a37b85c9SVlad Yasevich 50077751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 50177751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 5022594e906SNikolay Aleksandrov u16 *vid) 5032594e906SNikolay Aleksandrov { 5042594e906SNikolay Aleksandrov /* If VLAN filtering is disabled on the bridge, all packets are 5052594e906SNikolay Aleksandrov * permitted. 5062594e906SNikolay Aleksandrov */ 507ae75767eSNikolay Aleksandrov if (!br_opt_get(br, BROPT_VLAN_ENABLED)) { 5082594e906SNikolay Aleksandrov BR_INPUT_SKB_CB(skb)->vlan_filtered = false; 5092594e906SNikolay Aleksandrov return true; 5102594e906SNikolay Aleksandrov } 5112594e906SNikolay Aleksandrov 5126dada9b1SNikolay Aleksandrov return __allowed_ingress(br, vg, skb, vid); 5132594e906SNikolay Aleksandrov } 5142594e906SNikolay Aleksandrov 51585f46c6bSVlad Yasevich /* Called under RCU. */ 5162594e906SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 51785f46c6bSVlad Yasevich const struct sk_buff *skb) 51885f46c6bSVlad Yasevich { 5192594e906SNikolay Aleksandrov const struct net_bridge_vlan *v; 52085f46c6bSVlad Yasevich u16 vid; 52185f46c6bSVlad Yasevich 52220adfa1aSVlad Yasevich /* If this packet was not filtered at input, let it pass */ 52320adfa1aSVlad Yasevich if (!BR_INPUT_SKB_CB(skb)->vlan_filtered) 52485f46c6bSVlad Yasevich return true; 52585f46c6bSVlad Yasevich 52685f46c6bSVlad Yasevich br_vlan_get_tag(skb, &vid); 5272594e906SNikolay Aleksandrov v = br_vlan_find(vg, vid); 5282594e906SNikolay Aleksandrov if (v && br_vlan_should_use(v)) 52985f46c6bSVlad Yasevich return true; 53085f46c6bSVlad Yasevich 53185f46c6bSVlad Yasevich return false; 53285f46c6bSVlad Yasevich } 53385f46c6bSVlad Yasevich 534e0d7968aSToshiaki Makita /* Called under RCU */ 535e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid) 536e0d7968aSToshiaki Makita { 537468e7944SNikolay Aleksandrov struct net_bridge_vlan_group *vg; 538e0d7968aSToshiaki Makita struct net_bridge *br = p->br; 539e0d7968aSToshiaki Makita 54020adfa1aSVlad Yasevich /* If filtering was disabled at input, let it pass. */ 541ae75767eSNikolay Aleksandrov if (!br_opt_get(br, BROPT_VLAN_ENABLED)) 542e0d7968aSToshiaki Makita return true; 543e0d7968aSToshiaki Makita 544eca1e006SIdo Schimmel vg = nbp_vlan_group_rcu(p); 545468e7944SNikolay Aleksandrov if (!vg || !vg->num_vlans) 546e0d7968aSToshiaki Makita return false; 547e0d7968aSToshiaki Makita 5488580e211SToshiaki Makita if (!br_vlan_get_tag(skb, vid) && skb->vlan_proto != br->vlan_proto) 5498580e211SToshiaki Makita *vid = 0; 5508580e211SToshiaki Makita 551e0d7968aSToshiaki Makita if (!*vid) { 55277751ee8SNikolay Aleksandrov *vid = br_get_pvid(vg); 5533df6bf45SVlad Yasevich if (!*vid) 554e0d7968aSToshiaki Makita return false; 555e0d7968aSToshiaki Makita 556e0d7968aSToshiaki Makita return true; 557e0d7968aSToshiaki Makita } 558e0d7968aSToshiaki Makita 55977751ee8SNikolay Aleksandrov if (br_vlan_find(vg, *vid)) 560e0d7968aSToshiaki Makita return true; 561e0d7968aSToshiaki Makita 562e0d7968aSToshiaki Makita return false; 563e0d7968aSToshiaki Makita } 564e0d7968aSToshiaki Makita 565dbd6dc75SPetr Machata static int br_vlan_add_existing(struct net_bridge *br, 566dbd6dc75SPetr Machata struct net_bridge_vlan_group *vg, 567dbd6dc75SPetr Machata struct net_bridge_vlan *vlan, 568dbd6dc75SPetr Machata u16 flags, bool *changed) 569dbd6dc75SPetr Machata { 570dbd6dc75SPetr Machata int err; 571dbd6dc75SPetr Machata 5729c86ce2cSPetr Machata err = br_switchdev_port_vlan_add(br->dev, vlan->vid, flags); 5739c86ce2cSPetr Machata if (err && err != -EOPNOTSUPP) 5749c86ce2cSPetr Machata return err; 5759c86ce2cSPetr Machata 576dbd6dc75SPetr Machata if (!br_vlan_is_brentry(vlan)) { 577dbd6dc75SPetr Machata /* Trying to change flags of non-existent bridge vlan */ 5789c86ce2cSPetr Machata if (!(flags & BRIDGE_VLAN_INFO_BRENTRY)) { 5799c86ce2cSPetr Machata err = -EINVAL; 5809c86ce2cSPetr Machata goto err_flags; 5819c86ce2cSPetr Machata } 582dbd6dc75SPetr Machata /* It was only kept for port vlans, now make it real */ 583dbd6dc75SPetr Machata err = br_fdb_insert(br, NULL, br->dev->dev_addr, 584dbd6dc75SPetr Machata vlan->vid); 585dbd6dc75SPetr Machata if (err) { 586dbd6dc75SPetr Machata br_err(br, "failed to insert local address into bridge forwarding table\n"); 5879c86ce2cSPetr Machata goto err_fdb_insert; 588dbd6dc75SPetr Machata } 589dbd6dc75SPetr Machata 590dbd6dc75SPetr Machata refcount_inc(&vlan->refcnt); 591dbd6dc75SPetr Machata vlan->flags |= BRIDGE_VLAN_INFO_BRENTRY; 592dbd6dc75SPetr Machata vg->num_vlans++; 593dbd6dc75SPetr Machata *changed = true; 594dbd6dc75SPetr Machata } 595dbd6dc75SPetr Machata 596dbd6dc75SPetr Machata if (__vlan_add_flags(vlan, flags)) 597dbd6dc75SPetr Machata *changed = true; 598dbd6dc75SPetr Machata 599dbd6dc75SPetr Machata return 0; 6009c86ce2cSPetr Machata 6019c86ce2cSPetr Machata err_fdb_insert: 6029c86ce2cSPetr Machata err_flags: 6039c86ce2cSPetr Machata br_switchdev_port_vlan_del(br->dev, vlan->vid); 6049c86ce2cSPetr Machata return err; 605dbd6dc75SPetr Machata } 606dbd6dc75SPetr Machata 6078adff41cSToshiaki Makita /* Must be protected by RTNL. 6088adff41cSToshiaki Makita * Must be called with vid in range from 1 to 4094 inclusive. 609f418af63SNikolay Aleksandrov * changed must be true only if the vlan was created or updated 6108adff41cSToshiaki Makita */ 611f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, bool *changed) 612243a2e63SVlad Yasevich { 613907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group *vg; 6142594e906SNikolay Aleksandrov struct net_bridge_vlan *vlan; 6152594e906SNikolay Aleksandrov int ret; 616243a2e63SVlad Yasevich 617243a2e63SVlad Yasevich ASSERT_RTNL(); 618243a2e63SVlad Yasevich 619f418af63SNikolay Aleksandrov *changed = false; 620907b1e6eSNikolay Aleksandrov vg = br_vlan_group(br); 621907b1e6eSNikolay Aleksandrov vlan = br_vlan_find(vg, vid); 622dbd6dc75SPetr Machata if (vlan) 623dbd6dc75SPetr Machata return br_vlan_add_existing(br, vg, vlan, flags, changed); 624243a2e63SVlad Yasevich 6252594e906SNikolay Aleksandrov vlan = kzalloc(sizeof(*vlan), GFP_KERNEL); 6262594e906SNikolay Aleksandrov if (!vlan) 627243a2e63SVlad Yasevich return -ENOMEM; 628243a2e63SVlad Yasevich 6296dada9b1SNikolay Aleksandrov vlan->stats = netdev_alloc_pcpu_stats(struct br_vlan_stats); 6306dada9b1SNikolay Aleksandrov if (!vlan->stats) { 6316dada9b1SNikolay Aleksandrov kfree(vlan); 6326dada9b1SNikolay Aleksandrov return -ENOMEM; 6336dada9b1SNikolay Aleksandrov } 6342594e906SNikolay Aleksandrov vlan->vid = vid; 6352594e906SNikolay Aleksandrov vlan->flags = flags | BRIDGE_VLAN_INFO_MASTER; 6362594e906SNikolay Aleksandrov vlan->flags &= ~BRIDGE_VLAN_INFO_PVID; 6372594e906SNikolay Aleksandrov vlan->br = br; 6382594e906SNikolay Aleksandrov if (flags & BRIDGE_VLAN_INFO_BRENTRY) 63925127759SReshetova, Elena refcount_set(&vlan->refcnt, 1); 6402594e906SNikolay Aleksandrov ret = __vlan_add(vlan, flags); 6416dada9b1SNikolay Aleksandrov if (ret) { 6426dada9b1SNikolay Aleksandrov free_percpu(vlan->stats); 6432594e906SNikolay Aleksandrov kfree(vlan); 644f418af63SNikolay Aleksandrov } else { 645f418af63SNikolay Aleksandrov *changed = true; 6466dada9b1SNikolay Aleksandrov } 647243a2e63SVlad Yasevich 6482594e906SNikolay Aleksandrov return ret; 649243a2e63SVlad Yasevich } 650243a2e63SVlad Yasevich 6518adff41cSToshiaki Makita /* Must be protected by RTNL. 6528adff41cSToshiaki Makita * Must be called with vid in range from 1 to 4094 inclusive. 6538adff41cSToshiaki Makita */ 654243a2e63SVlad Yasevich int br_vlan_delete(struct net_bridge *br, u16 vid) 655243a2e63SVlad Yasevich { 656907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group *vg; 6572594e906SNikolay Aleksandrov struct net_bridge_vlan *v; 658243a2e63SVlad Yasevich 659243a2e63SVlad Yasevich ASSERT_RTNL(); 660243a2e63SVlad Yasevich 661907b1e6eSNikolay Aleksandrov vg = br_vlan_group(br); 662907b1e6eSNikolay Aleksandrov v = br_vlan_find(vg, vid); 6632594e906SNikolay Aleksandrov if (!v || !br_vlan_is_brentry(v)) 6642594e906SNikolay Aleksandrov return -ENOENT; 665243a2e63SVlad Yasevich 666424bb9c9SToshiaki Makita br_fdb_find_delete_local(br, NULL, br->dev->dev_addr, vid); 6673741873bSRoopa Prabhu br_fdb_delete_by_port(br, NULL, vid, 0); 668bc9a25d2SVlad Yasevich 669efa5356bSRoopa Prabhu vlan_tunnel_info_del(vg, v); 670efa5356bSRoopa Prabhu 6712594e906SNikolay Aleksandrov return __vlan_del(v); 672243a2e63SVlad Yasevich } 673243a2e63SVlad Yasevich 674243a2e63SVlad Yasevich void br_vlan_flush(struct net_bridge *br) 675243a2e63SVlad Yasevich { 676f409d0edSNikolay Aleksandrov struct net_bridge_vlan_group *vg; 677f409d0edSNikolay Aleksandrov 678243a2e63SVlad Yasevich ASSERT_RTNL(); 679243a2e63SVlad Yasevich 680f409d0edSNikolay Aleksandrov vg = br_vlan_group(br); 681f409d0edSNikolay Aleksandrov __vlan_flush(vg); 682f409d0edSNikolay Aleksandrov RCU_INIT_POINTER(br->vlgrp, NULL); 683f409d0edSNikolay Aleksandrov synchronize_rcu(); 684f409d0edSNikolay Aleksandrov __vlan_group_free(vg); 685243a2e63SVlad Yasevich } 686243a2e63SVlad Yasevich 6872594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid) 6882b292fb4SToshiaki Makita { 6892594e906SNikolay Aleksandrov if (!vg) 6902594e906SNikolay Aleksandrov return NULL; 6912b292fb4SToshiaki Makita 6922594e906SNikolay Aleksandrov return br_vlan_lookup(&vg->vlan_hash, vid); 6932b292fb4SToshiaki Makita } 6942b292fb4SToshiaki Makita 695204177f3SToshiaki Makita /* Must be protected by RTNL. */ 696204177f3SToshiaki Makita static void recalculate_group_addr(struct net_bridge *br) 697204177f3SToshiaki Makita { 698204177f3SToshiaki Makita if (br->group_addr_set) 699204177f3SToshiaki Makita return; 700204177f3SToshiaki Makita 701204177f3SToshiaki Makita spin_lock_bh(&br->lock); 702ae75767eSNikolay Aleksandrov if (!br_opt_get(br, BROPT_VLAN_ENABLED) || 703ae75767eSNikolay Aleksandrov br->vlan_proto == htons(ETH_P_8021Q)) { 704204177f3SToshiaki Makita /* Bridge Group Address */ 705204177f3SToshiaki Makita br->group_addr[5] = 0x00; 706204177f3SToshiaki Makita } else { /* vlan_enabled && ETH_P_8021AD */ 707204177f3SToshiaki Makita /* Provider Bridge Group Address */ 708204177f3SToshiaki Makita br->group_addr[5] = 0x08; 709204177f3SToshiaki Makita } 710204177f3SToshiaki Makita spin_unlock_bh(&br->lock); 711204177f3SToshiaki Makita } 712204177f3SToshiaki Makita 713204177f3SToshiaki Makita /* Must be protected by RTNL. */ 714204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br) 715204177f3SToshiaki Makita { 716ae75767eSNikolay Aleksandrov if (!br_opt_get(br, BROPT_VLAN_ENABLED) || 717ae75767eSNikolay Aleksandrov br->vlan_proto == htons(ETH_P_8021Q)) 718204177f3SToshiaki Makita br->group_fwd_mask_required = BR_GROUPFWD_DEFAULT; 719204177f3SToshiaki Makita else /* vlan_enabled && ETH_P_8021AD */ 720204177f3SToshiaki Makita br->group_fwd_mask_required = BR_GROUPFWD_8021AD & 721204177f3SToshiaki Makita ~(1u << br->group_addr[5]); 722204177f3SToshiaki Makita } 723204177f3SToshiaki Makita 724a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val) 725243a2e63SVlad Yasevich { 7266b72a770SElad Raz struct switchdev_attr attr = { 7276b72a770SElad Raz .orig_dev = br->dev, 7286b72a770SElad Raz .id = SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING, 7296b72a770SElad Raz .flags = SWITCHDEV_F_SKIP_EOPNOTSUPP, 7306b72a770SElad Raz .u.vlan_filtering = val, 7316b72a770SElad Raz }; 7326b72a770SElad Raz int err; 7336b72a770SElad Raz 734ae75767eSNikolay Aleksandrov if (br_opt_get(br, BROPT_VLAN_ENABLED) == !!val) 735a7854037SNikolay Aleksandrov return 0; 736243a2e63SVlad Yasevich 7376b72a770SElad Raz err = switchdev_port_attr_set(br->dev, &attr); 7386b72a770SElad Raz if (err && err != -EOPNOTSUPP) 7396b72a770SElad Raz return err; 7406b72a770SElad Raz 741ae75767eSNikolay Aleksandrov br_opt_toggle(br, BROPT_VLAN_ENABLED, !!val); 7422796d0c6SVlad Yasevich br_manage_promisc(br); 743204177f3SToshiaki Makita recalculate_group_addr(br); 744204177f3SToshiaki Makita br_recalculate_fwd_mask(br); 745243a2e63SVlad Yasevich 746a7854037SNikolay Aleksandrov return 0; 747a7854037SNikolay Aleksandrov } 748a7854037SNikolay Aleksandrov 749a7854037SNikolay Aleksandrov int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val) 750a7854037SNikolay Aleksandrov { 751047831a9SXin Long return __br_vlan_filter_toggle(br, val); 752243a2e63SVlad Yasevich } 753243a2e63SVlad Yasevich 7541f51445aSIdo Schimmel bool br_vlan_enabled(const struct net_device *dev) 7551f51445aSIdo Schimmel { 7561f51445aSIdo Schimmel struct net_bridge *br = netdev_priv(dev); 7571f51445aSIdo Schimmel 758ae75767eSNikolay Aleksandrov return br_opt_get(br, BROPT_VLAN_ENABLED); 7591f51445aSIdo Schimmel } 7601f51445aSIdo Schimmel EXPORT_SYMBOL_GPL(br_vlan_enabled); 7611f51445aSIdo Schimmel 762d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto) 763204177f3SToshiaki Makita { 764204177f3SToshiaki Makita int err = 0; 765204177f3SToshiaki Makita struct net_bridge_port *p; 7662594e906SNikolay Aleksandrov struct net_bridge_vlan *vlan; 767907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group *vg; 768d2d427b3SToshiaki Makita __be16 oldproto; 769204177f3SToshiaki Makita 770204177f3SToshiaki Makita if (br->vlan_proto == proto) 771d2d427b3SToshiaki Makita return 0; 772204177f3SToshiaki Makita 773204177f3SToshiaki Makita /* Add VLANs for the new proto to the device filter. */ 774204177f3SToshiaki Makita list_for_each_entry(p, &br->port_list, list) { 775907b1e6eSNikolay Aleksandrov vg = nbp_vlan_group(p); 776907b1e6eSNikolay Aleksandrov list_for_each_entry(vlan, &vg->vlan_list, vlist) { 7772594e906SNikolay Aleksandrov err = vlan_vid_add(p->dev, proto, vlan->vid); 778204177f3SToshiaki Makita if (err) 779204177f3SToshiaki Makita goto err_filt; 780204177f3SToshiaki Makita } 781204177f3SToshiaki Makita } 782204177f3SToshiaki Makita 783204177f3SToshiaki Makita oldproto = br->vlan_proto; 784204177f3SToshiaki Makita br->vlan_proto = proto; 785204177f3SToshiaki Makita 786204177f3SToshiaki Makita recalculate_group_addr(br); 787204177f3SToshiaki Makita br_recalculate_fwd_mask(br); 788204177f3SToshiaki Makita 789204177f3SToshiaki Makita /* Delete VLANs for the old proto from the device filter. */ 790907b1e6eSNikolay Aleksandrov list_for_each_entry(p, &br->port_list, list) { 791907b1e6eSNikolay Aleksandrov vg = nbp_vlan_group(p); 792907b1e6eSNikolay Aleksandrov list_for_each_entry(vlan, &vg->vlan_list, vlist) 7932594e906SNikolay Aleksandrov vlan_vid_del(p->dev, oldproto, vlan->vid); 794907b1e6eSNikolay Aleksandrov } 795204177f3SToshiaki Makita 796d2d427b3SToshiaki Makita return 0; 797204177f3SToshiaki Makita 798204177f3SToshiaki Makita err_filt: 799907b1e6eSNikolay Aleksandrov list_for_each_entry_continue_reverse(vlan, &vg->vlan_list, vlist) 8002594e906SNikolay Aleksandrov vlan_vid_del(p->dev, proto, vlan->vid); 801204177f3SToshiaki Makita 802907b1e6eSNikolay Aleksandrov list_for_each_entry_continue_reverse(p, &br->port_list, list) { 803907b1e6eSNikolay Aleksandrov vg = nbp_vlan_group(p); 804907b1e6eSNikolay Aleksandrov list_for_each_entry(vlan, &vg->vlan_list, vlist) 8052594e906SNikolay Aleksandrov vlan_vid_del(p->dev, proto, vlan->vid); 806907b1e6eSNikolay Aleksandrov } 807204177f3SToshiaki Makita 808d2d427b3SToshiaki Makita return err; 809d2d427b3SToshiaki Makita } 810d2d427b3SToshiaki Makita 811d2d427b3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val) 812d2d427b3SToshiaki Makita { 813d2d427b3SToshiaki Makita if (val != ETH_P_8021Q && val != ETH_P_8021AD) 814d2d427b3SToshiaki Makita return -EPROTONOSUPPORT; 815d2d427b3SToshiaki Makita 816047831a9SXin Long return __br_vlan_set_proto(br, htons(val)); 817204177f3SToshiaki Makita } 818204177f3SToshiaki Makita 8196dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val) 8206dada9b1SNikolay Aleksandrov { 8216dada9b1SNikolay Aleksandrov switch (val) { 8226dada9b1SNikolay Aleksandrov case 0: 8236dada9b1SNikolay Aleksandrov case 1: 824ae75767eSNikolay Aleksandrov br_opt_toggle(br, BROPT_VLAN_STATS_ENABLED, !!val); 8256dada9b1SNikolay Aleksandrov break; 8266dada9b1SNikolay Aleksandrov default: 8276dada9b1SNikolay Aleksandrov return -EINVAL; 8286dada9b1SNikolay Aleksandrov } 8296dada9b1SNikolay Aleksandrov 8306dada9b1SNikolay Aleksandrov return 0; 8316dada9b1SNikolay Aleksandrov } 8326dada9b1SNikolay Aleksandrov 83377751ee8SNikolay Aleksandrov static bool vlan_default_pvid(struct net_bridge_vlan_group *vg, u16 vid) 8345be5a2dfSVlad Yasevich { 8352594e906SNikolay Aleksandrov struct net_bridge_vlan *v; 8362594e906SNikolay Aleksandrov 83777751ee8SNikolay Aleksandrov if (vid != vg->pvid) 8382594e906SNikolay Aleksandrov return false; 8392594e906SNikolay Aleksandrov 8402594e906SNikolay Aleksandrov v = br_vlan_lookup(&vg->vlan_hash, vid); 8412594e906SNikolay Aleksandrov if (v && br_vlan_should_use(v) && 8422594e906SNikolay Aleksandrov (v->flags & BRIDGE_VLAN_INFO_UNTAGGED)) 8432594e906SNikolay Aleksandrov return true; 8442594e906SNikolay Aleksandrov 8452594e906SNikolay Aleksandrov return false; 8465be5a2dfSVlad Yasevich } 8475be5a2dfSVlad Yasevich 8485be5a2dfSVlad Yasevich static void br_vlan_disable_default_pvid(struct net_bridge *br) 8495be5a2dfSVlad Yasevich { 8505be5a2dfSVlad Yasevich struct net_bridge_port *p; 8515be5a2dfSVlad Yasevich u16 pvid = br->default_pvid; 8525be5a2dfSVlad Yasevich 8535be5a2dfSVlad Yasevich /* Disable default_pvid on all ports where it is still 8545be5a2dfSVlad Yasevich * configured. 8555be5a2dfSVlad Yasevich */ 856907b1e6eSNikolay Aleksandrov if (vlan_default_pvid(br_vlan_group(br), pvid)) 8575be5a2dfSVlad Yasevich br_vlan_delete(br, pvid); 8585be5a2dfSVlad Yasevich 8595be5a2dfSVlad Yasevich list_for_each_entry(p, &br->port_list, list) { 860907b1e6eSNikolay Aleksandrov if (vlan_default_pvid(nbp_vlan_group(p), pvid)) 8615be5a2dfSVlad Yasevich nbp_vlan_delete(p, pvid); 8625be5a2dfSVlad Yasevich } 8635be5a2dfSVlad Yasevich 8645be5a2dfSVlad Yasevich br->default_pvid = 0; 8655be5a2dfSVlad Yasevich } 8665be5a2dfSVlad Yasevich 8670f963b75SNikolay Aleksandrov int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid) 8685be5a2dfSVlad Yasevich { 8692594e906SNikolay Aleksandrov const struct net_bridge_vlan *pvent; 870907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group *vg; 8715be5a2dfSVlad Yasevich struct net_bridge_port *p; 872f418af63SNikolay Aleksandrov unsigned long *changed; 873f418af63SNikolay Aleksandrov bool vlchange; 8745be5a2dfSVlad Yasevich u16 old_pvid; 8755be5a2dfSVlad Yasevich int err = 0; 8765be5a2dfSVlad Yasevich 8770f963b75SNikolay Aleksandrov if (!pvid) { 8780f963b75SNikolay Aleksandrov br_vlan_disable_default_pvid(br); 8790f963b75SNikolay Aleksandrov return 0; 8800f963b75SNikolay Aleksandrov } 8810f963b75SNikolay Aleksandrov 882459479daSAndy Shevchenko changed = bitmap_zalloc(BR_MAX_PORTS, GFP_KERNEL); 8835be5a2dfSVlad Yasevich if (!changed) 8845be5a2dfSVlad Yasevich return -ENOMEM; 8855be5a2dfSVlad Yasevich 8865be5a2dfSVlad Yasevich old_pvid = br->default_pvid; 8875be5a2dfSVlad Yasevich 8885be5a2dfSVlad Yasevich /* Update default_pvid config only if we do not conflict with 8895be5a2dfSVlad Yasevich * user configuration. 8905be5a2dfSVlad Yasevich */ 891907b1e6eSNikolay Aleksandrov vg = br_vlan_group(br); 892907b1e6eSNikolay Aleksandrov pvent = br_vlan_find(vg, pvid); 893907b1e6eSNikolay Aleksandrov if ((!old_pvid || vlan_default_pvid(vg, old_pvid)) && 8942594e906SNikolay Aleksandrov (!pvent || !br_vlan_should_use(pvent))) { 8955be5a2dfSVlad Yasevich err = br_vlan_add(br, pvid, 8965be5a2dfSVlad Yasevich BRIDGE_VLAN_INFO_PVID | 8972594e906SNikolay Aleksandrov BRIDGE_VLAN_INFO_UNTAGGED | 898f418af63SNikolay Aleksandrov BRIDGE_VLAN_INFO_BRENTRY, 899f418af63SNikolay Aleksandrov &vlchange); 9005be5a2dfSVlad Yasevich if (err) 9015be5a2dfSVlad Yasevich goto out; 9025be5a2dfSVlad Yasevich br_vlan_delete(br, old_pvid); 9035be5a2dfSVlad Yasevich set_bit(0, changed); 9045be5a2dfSVlad Yasevich } 9055be5a2dfSVlad Yasevich 9065be5a2dfSVlad Yasevich list_for_each_entry(p, &br->port_list, list) { 9075be5a2dfSVlad Yasevich /* Update default_pvid config only if we do not conflict with 9085be5a2dfSVlad Yasevich * user configuration. 9095be5a2dfSVlad Yasevich */ 910907b1e6eSNikolay Aleksandrov vg = nbp_vlan_group(p); 9115be5a2dfSVlad Yasevich if ((old_pvid && 912907b1e6eSNikolay Aleksandrov !vlan_default_pvid(vg, old_pvid)) || 913907b1e6eSNikolay Aleksandrov br_vlan_find(vg, pvid)) 9145be5a2dfSVlad Yasevich continue; 9155be5a2dfSVlad Yasevich 9165be5a2dfSVlad Yasevich err = nbp_vlan_add(p, pvid, 9175be5a2dfSVlad Yasevich BRIDGE_VLAN_INFO_PVID | 918f418af63SNikolay Aleksandrov BRIDGE_VLAN_INFO_UNTAGGED, 919f418af63SNikolay Aleksandrov &vlchange); 9205be5a2dfSVlad Yasevich if (err) 9215be5a2dfSVlad Yasevich goto err_port; 9225be5a2dfSVlad Yasevich nbp_vlan_delete(p, old_pvid); 9235be5a2dfSVlad Yasevich set_bit(p->port_no, changed); 9245be5a2dfSVlad Yasevich } 9255be5a2dfSVlad Yasevich 9265be5a2dfSVlad Yasevich br->default_pvid = pvid; 9275be5a2dfSVlad Yasevich 9285be5a2dfSVlad Yasevich out: 929459479daSAndy Shevchenko bitmap_free(changed); 9305be5a2dfSVlad Yasevich return err; 9315be5a2dfSVlad Yasevich 9325be5a2dfSVlad Yasevich err_port: 9335be5a2dfSVlad Yasevich list_for_each_entry_continue_reverse(p, &br->port_list, list) { 9345be5a2dfSVlad Yasevich if (!test_bit(p->port_no, changed)) 9355be5a2dfSVlad Yasevich continue; 9365be5a2dfSVlad Yasevich 9375be5a2dfSVlad Yasevich if (old_pvid) 9385be5a2dfSVlad Yasevich nbp_vlan_add(p, old_pvid, 9395be5a2dfSVlad Yasevich BRIDGE_VLAN_INFO_PVID | 940f418af63SNikolay Aleksandrov BRIDGE_VLAN_INFO_UNTAGGED, 941f418af63SNikolay Aleksandrov &vlchange); 9425be5a2dfSVlad Yasevich nbp_vlan_delete(p, pvid); 9435be5a2dfSVlad Yasevich } 9445be5a2dfSVlad Yasevich 9455be5a2dfSVlad Yasevich if (test_bit(0, changed)) { 9465be5a2dfSVlad Yasevich if (old_pvid) 9475be5a2dfSVlad Yasevich br_vlan_add(br, old_pvid, 9485be5a2dfSVlad Yasevich BRIDGE_VLAN_INFO_PVID | 9492594e906SNikolay Aleksandrov BRIDGE_VLAN_INFO_UNTAGGED | 950f418af63SNikolay Aleksandrov BRIDGE_VLAN_INFO_BRENTRY, 951f418af63SNikolay Aleksandrov &vlchange); 9525be5a2dfSVlad Yasevich br_vlan_delete(br, pvid); 9535be5a2dfSVlad Yasevich } 9545be5a2dfSVlad Yasevich goto out; 9555be5a2dfSVlad Yasevich } 9565be5a2dfSVlad Yasevich 95796a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val) 95896a20d9dSVlad Yasevich { 95996a20d9dSVlad Yasevich u16 pvid = val; 96096a20d9dSVlad Yasevich int err = 0; 96196a20d9dSVlad Yasevich 9625be5a2dfSVlad Yasevich if (val >= VLAN_VID_MASK) 96396a20d9dSVlad Yasevich return -EINVAL; 96496a20d9dSVlad Yasevich 96596a20d9dSVlad Yasevich if (pvid == br->default_pvid) 966047831a9SXin Long goto out; 96796a20d9dSVlad Yasevich 96896a20d9dSVlad Yasevich /* Only allow default pvid change when filtering is disabled */ 969ae75767eSNikolay Aleksandrov if (br_opt_get(br, BROPT_VLAN_ENABLED)) { 97096a20d9dSVlad Yasevich pr_info_once("Please disable vlan filtering to change default_pvid\n"); 97196a20d9dSVlad Yasevich err = -EPERM; 972047831a9SXin Long goto out; 97396a20d9dSVlad Yasevich } 9745be5a2dfSVlad Yasevich err = __br_vlan_set_default_pvid(br, pvid); 975047831a9SXin Long out: 97696a20d9dSVlad Yasevich return err; 97796a20d9dSVlad Yasevich } 97896a20d9dSVlad Yasevich 9795be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br) 9808580e211SToshiaki Makita { 981907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group *vg; 9822594e906SNikolay Aleksandrov int ret = -ENOMEM; 983f418af63SNikolay Aleksandrov bool changed; 9842594e906SNikolay Aleksandrov 985907b1e6eSNikolay Aleksandrov vg = kzalloc(sizeof(*vg), GFP_KERNEL); 986907b1e6eSNikolay Aleksandrov if (!vg) 9872594e906SNikolay Aleksandrov goto out; 988907b1e6eSNikolay Aleksandrov ret = rhashtable_init(&vg->vlan_hash, &br_vlan_rht_params); 9892594e906SNikolay Aleksandrov if (ret) 9902594e906SNikolay Aleksandrov goto err_rhtbl; 991efa5356bSRoopa Prabhu ret = vlan_tunnel_init(vg); 992efa5356bSRoopa Prabhu if (ret) 993efa5356bSRoopa Prabhu goto err_tunnel_init; 994907b1e6eSNikolay Aleksandrov INIT_LIST_HEAD(&vg->vlan_list); 9958580e211SToshiaki Makita br->vlan_proto = htons(ETH_P_8021Q); 99696a20d9dSVlad Yasevich br->default_pvid = 1; 997907b1e6eSNikolay Aleksandrov rcu_assign_pointer(br->vlgrp, vg); 9982594e906SNikolay Aleksandrov ret = br_vlan_add(br, 1, 9992594e906SNikolay Aleksandrov BRIDGE_VLAN_INFO_PVID | BRIDGE_VLAN_INFO_UNTAGGED | 1000f418af63SNikolay Aleksandrov BRIDGE_VLAN_INFO_BRENTRY, &changed); 10012594e906SNikolay Aleksandrov if (ret) 10022594e906SNikolay Aleksandrov goto err_vlan_add; 10032594e906SNikolay Aleksandrov 10042594e906SNikolay Aleksandrov out: 10052594e906SNikolay Aleksandrov return ret; 10062594e906SNikolay Aleksandrov 10072594e906SNikolay Aleksandrov err_vlan_add: 1008efa5356bSRoopa Prabhu vlan_tunnel_deinit(vg); 1009efa5356bSRoopa Prabhu err_tunnel_init: 1010907b1e6eSNikolay Aleksandrov rhashtable_destroy(&vg->vlan_hash); 10112594e906SNikolay Aleksandrov err_rhtbl: 1012907b1e6eSNikolay Aleksandrov kfree(vg); 10132594e906SNikolay Aleksandrov 10142594e906SNikolay Aleksandrov goto out; 10152594e906SNikolay Aleksandrov } 10162594e906SNikolay Aleksandrov 10172594e906SNikolay Aleksandrov int nbp_vlan_init(struct net_bridge_port *p) 10182594e906SNikolay Aleksandrov { 1019404cdbf0SElad Raz struct switchdev_attr attr = { 1020404cdbf0SElad Raz .orig_dev = p->br->dev, 1021404cdbf0SElad Raz .id = SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING, 1022404cdbf0SElad Raz .flags = SWITCHDEV_F_SKIP_EOPNOTSUPP, 1023ae75767eSNikolay Aleksandrov .u.vlan_filtering = br_opt_get(p->br, BROPT_VLAN_ENABLED), 1024404cdbf0SElad Raz }; 1025263344e6SNikolay Aleksandrov struct net_bridge_vlan_group *vg; 10262594e906SNikolay Aleksandrov int ret = -ENOMEM; 10272594e906SNikolay Aleksandrov 1028263344e6SNikolay Aleksandrov vg = kzalloc(sizeof(struct net_bridge_vlan_group), GFP_KERNEL); 1029263344e6SNikolay Aleksandrov if (!vg) 10302594e906SNikolay Aleksandrov goto out; 10312594e906SNikolay Aleksandrov 1032404cdbf0SElad Raz ret = switchdev_port_attr_set(p->dev, &attr); 1033404cdbf0SElad Raz if (ret && ret != -EOPNOTSUPP) 1034404cdbf0SElad Raz goto err_vlan_enabled; 1035404cdbf0SElad Raz 1036263344e6SNikolay Aleksandrov ret = rhashtable_init(&vg->vlan_hash, &br_vlan_rht_params); 10372594e906SNikolay Aleksandrov if (ret) 10382594e906SNikolay Aleksandrov goto err_rhtbl; 1039efa5356bSRoopa Prabhu ret = vlan_tunnel_init(vg); 1040efa5356bSRoopa Prabhu if (ret) 1041efa5356bSRoopa Prabhu goto err_tunnel_init; 1042263344e6SNikolay Aleksandrov INIT_LIST_HEAD(&vg->vlan_list); 1043907b1e6eSNikolay Aleksandrov rcu_assign_pointer(p->vlgrp, vg); 10442594e906SNikolay Aleksandrov if (p->br->default_pvid) { 1045f418af63SNikolay Aleksandrov bool changed; 1046f418af63SNikolay Aleksandrov 10472594e906SNikolay Aleksandrov ret = nbp_vlan_add(p, p->br->default_pvid, 10482594e906SNikolay Aleksandrov BRIDGE_VLAN_INFO_PVID | 1049f418af63SNikolay Aleksandrov BRIDGE_VLAN_INFO_UNTAGGED, 1050f418af63SNikolay Aleksandrov &changed); 10512594e906SNikolay Aleksandrov if (ret) 10522594e906SNikolay Aleksandrov goto err_vlan_add; 10532594e906SNikolay Aleksandrov } 10542594e906SNikolay Aleksandrov out: 10552594e906SNikolay Aleksandrov return ret; 10562594e906SNikolay Aleksandrov 10572594e906SNikolay Aleksandrov err_vlan_add: 105807bc588fSIdo Schimmel RCU_INIT_POINTER(p->vlgrp, NULL); 105907bc588fSIdo Schimmel synchronize_rcu(); 1060efa5356bSRoopa Prabhu vlan_tunnel_deinit(vg); 1061efa5356bSRoopa Prabhu err_tunnel_init: 1062efa5356bSRoopa Prabhu rhashtable_destroy(&vg->vlan_hash); 10632594e906SNikolay Aleksandrov err_rhtbl: 1064df2c4334SYotam Gigi err_vlan_enabled: 1065263344e6SNikolay Aleksandrov kfree(vg); 10662594e906SNikolay Aleksandrov 10672594e906SNikolay Aleksandrov goto out; 10688580e211SToshiaki Makita } 10698580e211SToshiaki Makita 10708adff41cSToshiaki Makita /* Must be protected by RTNL. 10718adff41cSToshiaki Makita * Must be called with vid in range from 1 to 4094 inclusive. 1072f418af63SNikolay Aleksandrov * changed must be true only if the vlan was created or updated 10738adff41cSToshiaki Makita */ 1074f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1075f418af63SNikolay Aleksandrov bool *changed) 1076243a2e63SVlad Yasevich { 10772594e906SNikolay Aleksandrov struct net_bridge_vlan *vlan; 10782594e906SNikolay Aleksandrov int ret; 1079243a2e63SVlad Yasevich 1080243a2e63SVlad Yasevich ASSERT_RTNL(); 1081243a2e63SVlad Yasevich 1082f418af63SNikolay Aleksandrov *changed = false; 1083907b1e6eSNikolay Aleksandrov vlan = br_vlan_find(nbp_vlan_group(port), vid); 10842594e906SNikolay Aleksandrov if (vlan) { 10857fbac984SIdo Schimmel /* Pass the flags to the hardware bridge */ 1086d66e4348SPetr Machata ret = br_switchdev_port_vlan_add(port->dev, vid, flags); 10877fbac984SIdo Schimmel if (ret && ret != -EOPNOTSUPP) 10887fbac984SIdo Schimmel return ret; 1089f418af63SNikolay Aleksandrov *changed = __vlan_add_flags(vlan, flags); 1090f418af63SNikolay Aleksandrov 10912594e906SNikolay Aleksandrov return 0; 1092243a2e63SVlad Yasevich } 1093243a2e63SVlad Yasevich 10942594e906SNikolay Aleksandrov vlan = kzalloc(sizeof(*vlan), GFP_KERNEL); 10952594e906SNikolay Aleksandrov if (!vlan) 10962594e906SNikolay Aleksandrov return -ENOMEM; 1097243a2e63SVlad Yasevich 10982594e906SNikolay Aleksandrov vlan->vid = vid; 10992594e906SNikolay Aleksandrov vlan->port = port; 11002594e906SNikolay Aleksandrov ret = __vlan_add(vlan, flags); 11012594e906SNikolay Aleksandrov if (ret) 11022594e906SNikolay Aleksandrov kfree(vlan); 1103f418af63SNikolay Aleksandrov else 1104f418af63SNikolay Aleksandrov *changed = true; 1105243a2e63SVlad Yasevich 11062594e906SNikolay Aleksandrov return ret; 1107243a2e63SVlad Yasevich } 1108243a2e63SVlad Yasevich 11098adff41cSToshiaki Makita /* Must be protected by RTNL. 11108adff41cSToshiaki Makita * Must be called with vid in range from 1 to 4094 inclusive. 11118adff41cSToshiaki Makita */ 1112243a2e63SVlad Yasevich int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1113243a2e63SVlad Yasevich { 11142594e906SNikolay Aleksandrov struct net_bridge_vlan *v; 1115243a2e63SVlad Yasevich 1116243a2e63SVlad Yasevich ASSERT_RTNL(); 1117243a2e63SVlad Yasevich 1118907b1e6eSNikolay Aleksandrov v = br_vlan_find(nbp_vlan_group(port), vid); 11192594e906SNikolay Aleksandrov if (!v) 11202594e906SNikolay Aleksandrov return -ENOENT; 1121424bb9c9SToshiaki Makita br_fdb_find_delete_local(port->br, port, port->dev->dev_addr, vid); 11221ea2d020SNikolay Aleksandrov br_fdb_delete_by_port(port->br, port, vid, 0); 1123bc9a25d2SVlad Yasevich 11242594e906SNikolay Aleksandrov return __vlan_del(v); 1125243a2e63SVlad Yasevich } 1126243a2e63SVlad Yasevich 1127243a2e63SVlad Yasevich void nbp_vlan_flush(struct net_bridge_port *port) 1128243a2e63SVlad Yasevich { 1129f409d0edSNikolay Aleksandrov struct net_bridge_vlan_group *vg; 1130f409d0edSNikolay Aleksandrov 1131243a2e63SVlad Yasevich ASSERT_RTNL(); 1132243a2e63SVlad Yasevich 1133f409d0edSNikolay Aleksandrov vg = nbp_vlan_group(port); 1134f409d0edSNikolay Aleksandrov __vlan_flush(vg); 1135f409d0edSNikolay Aleksandrov RCU_INIT_POINTER(port->vlgrp, NULL); 1136f409d0edSNikolay Aleksandrov synchronize_rcu(); 1137f409d0edSNikolay Aleksandrov __vlan_group_free(vg); 11385be5a2dfSVlad Yasevich } 1139a60c0903SNikolay Aleksandrov 1140a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 1141a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 1142a60c0903SNikolay Aleksandrov { 1143a60c0903SNikolay Aleksandrov int i; 1144a60c0903SNikolay Aleksandrov 1145a60c0903SNikolay Aleksandrov memset(stats, 0, sizeof(*stats)); 1146a60c0903SNikolay Aleksandrov for_each_possible_cpu(i) { 1147a60c0903SNikolay Aleksandrov u64 rxpackets, rxbytes, txpackets, txbytes; 1148a60c0903SNikolay Aleksandrov struct br_vlan_stats *cpu_stats; 1149a60c0903SNikolay Aleksandrov unsigned int start; 1150a60c0903SNikolay Aleksandrov 1151a60c0903SNikolay Aleksandrov cpu_stats = per_cpu_ptr(v->stats, i); 1152a60c0903SNikolay Aleksandrov do { 1153a60c0903SNikolay Aleksandrov start = u64_stats_fetch_begin_irq(&cpu_stats->syncp); 1154a60c0903SNikolay Aleksandrov rxpackets = cpu_stats->rx_packets; 1155a60c0903SNikolay Aleksandrov rxbytes = cpu_stats->rx_bytes; 1156a60c0903SNikolay Aleksandrov txbytes = cpu_stats->tx_bytes; 1157a60c0903SNikolay Aleksandrov txpackets = cpu_stats->tx_packets; 1158a60c0903SNikolay Aleksandrov } while (u64_stats_fetch_retry_irq(&cpu_stats->syncp, start)); 1159a60c0903SNikolay Aleksandrov 1160a60c0903SNikolay Aleksandrov stats->rx_packets += rxpackets; 1161a60c0903SNikolay Aleksandrov stats->rx_bytes += rxbytes; 1162a60c0903SNikolay Aleksandrov stats->tx_bytes += txbytes; 1163a60c0903SNikolay Aleksandrov stats->tx_packets += txpackets; 1164a60c0903SNikolay Aleksandrov } 1165a60c0903SNikolay Aleksandrov } 11664d4fd361SPetr Machata 11674d4fd361SPetr Machata int br_vlan_get_pvid(const struct net_device *dev, u16 *p_pvid) 11684d4fd361SPetr Machata { 11694d4fd361SPetr Machata struct net_bridge_vlan_group *vg; 11704d4fd361SPetr Machata 11714d4fd361SPetr Machata ASSERT_RTNL(); 11724d4fd361SPetr Machata if (netif_is_bridge_master(dev)) 11734d4fd361SPetr Machata vg = br_vlan_group(netdev_priv(dev)); 11744d4fd361SPetr Machata else 11754d4fd361SPetr Machata return -EINVAL; 11764d4fd361SPetr Machata 11774d4fd361SPetr Machata *p_pvid = br_get_pvid(vg); 11784d4fd361SPetr Machata return 0; 11794d4fd361SPetr Machata } 11804d4fd361SPetr Machata EXPORT_SYMBOL_GPL(br_vlan_get_pvid); 11814d4fd361SPetr Machata 11824d4fd361SPetr Machata int br_vlan_get_info(const struct net_device *dev, u16 vid, 11834d4fd361SPetr Machata struct bridge_vlan_info *p_vinfo) 11844d4fd361SPetr Machata { 11854d4fd361SPetr Machata struct net_bridge_vlan_group *vg; 11864d4fd361SPetr Machata struct net_bridge_vlan *v; 11874d4fd361SPetr Machata struct net_bridge_port *p; 11884d4fd361SPetr Machata 11894d4fd361SPetr Machata ASSERT_RTNL(); 11904d4fd361SPetr Machata p = br_port_get_check_rtnl(dev); 11914d4fd361SPetr Machata if (p) 11924d4fd361SPetr Machata vg = nbp_vlan_group(p); 11932b18d79eSPetr Machata else if (netif_is_bridge_master(dev)) 11942b18d79eSPetr Machata vg = br_vlan_group(netdev_priv(dev)); 11954d4fd361SPetr Machata else 11964d4fd361SPetr Machata return -EINVAL; 11974d4fd361SPetr Machata 11984d4fd361SPetr Machata v = br_vlan_find(vg, vid); 11994d4fd361SPetr Machata if (!v) 12004d4fd361SPetr Machata return -ENOENT; 12014d4fd361SPetr Machata 12024d4fd361SPetr Machata p_vinfo->vid = vid; 12034d4fd361SPetr Machata p_vinfo->flags = v->flags; 12044d4fd361SPetr Machata return 0; 12054d4fd361SPetr Machata } 12064d4fd361SPetr Machata EXPORT_SYMBOL_GPL(br_vlan_get_info); 1207