diff options
Diffstat (limited to 'net/dsa')
-rw-r--r-- | net/dsa/dsa.c | 42 | ||||
-rw-r--r-- | net/dsa/dsa2.c | 6 | ||||
-rw-r--r-- | net/dsa/dsa_priv.h | 44 | ||||
-rw-r--r-- | net/dsa/legacy.c | 40 | ||||
-rw-r--r-- | net/dsa/port.c | 51 | ||||
-rw-r--r-- | net/dsa/slave.c | 419 | ||||
-rw-r--r-- | net/dsa/switch.c | 21 | ||||
-rw-r--r-- | net/dsa/tag_brcm.c | 6 | ||||
-rw-r--r-- | net/dsa/tag_dsa.c | 3 | ||||
-rw-r--r-- | net/dsa/tag_edsa.c | 3 | ||||
-rw-r--r-- | net/dsa/tag_ksz.c | 3 | ||||
-rw-r--r-- | net/dsa/tag_lan9303.c | 5 | ||||
-rw-r--r-- | net/dsa/tag_mtk.c | 17 | ||||
-rw-r--r-- | net/dsa/tag_qca.c | 3 | ||||
-rw-r--r-- | net/dsa/tag_trailer.c | 3 |
15 files changed, 455 insertions, 211 deletions
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c index 416ac4ef9ba9..03c58b0eb082 100644 --- a/net/dsa/dsa.c +++ b/net/dsa/dsa.c @@ -67,17 +67,17 @@ const struct dsa_device_ops *dsa_device_ops[DSA_TAG_LAST] = { [DSA_TAG_PROTO_NONE] = &none_ops, }; -int dsa_cpu_dsa_setup(struct dsa_switch *ds, struct device *dev, - struct dsa_port *dport, int port) +int dsa_cpu_dsa_setup(struct dsa_port *port) { - struct device_node *port_dn = dport->dn; + struct device_node *port_dn = port->dn; + struct dsa_switch *ds = port->ds; struct phy_device *phydev; int ret, mode; if (of_phy_is_fixed_link(port_dn)) { ret = of_phy_register_fixed_link(port_dn); if (ret) { - dev_err(dev, "failed to register fixed PHY\n"); + dev_err(ds->dev, "failed to register fixed PHY\n"); return ret; } phydev = of_phy_find_device(port_dn); @@ -90,7 +90,7 @@ int dsa_cpu_dsa_setup(struct dsa_switch *ds, struct device *dev, genphy_config_init(phydev); genphy_read_status(phydev); if (ds->ops->adjust_link) - ds->ops->adjust_link(ds, port, phydev); + ds->ops->adjust_link(ds, port->index, phydev); put_device(&phydev->mdio.dev); } @@ -186,10 +186,12 @@ struct net_device *dsa_dev_to_net_device(struct device *dev) EXPORT_SYMBOL_GPL(dsa_dev_to_net_device); static int dsa_switch_rcv(struct sk_buff *skb, struct net_device *dev, - struct packet_type *pt, struct net_device *orig_dev) + struct packet_type *pt, struct net_device *unused) { struct dsa_switch_tree *dst = dev->dsa_ptr; struct sk_buff *nskb = NULL; + struct pcpu_sw_netstats *s; + struct dsa_slave_priv *p; if (unlikely(dst == NULL)) { kfree_skb(skb); @@ -200,19 +202,23 @@ static int dsa_switch_rcv(struct sk_buff *skb, struct net_device *dev, if (!skb) return 0; - nskb = dst->rcv(skb, dev, pt, orig_dev); + nskb = dst->rcv(skb, dev, pt); if (!nskb) { kfree_skb(skb); return 0; } skb = nskb; + p = netdev_priv(skb->dev); skb_push(skb, ETH_HLEN); skb->pkt_type = PACKET_HOST; skb->protocol = eth_type_trans(skb, skb->dev); - skb->dev->stats.rx_packets++; - skb->dev->stats.rx_bytes += skb->len; + s = this_cpu_ptr(p->stats64); + u64_stats_update_begin(&s->syncp); + s->rx_packets++; + s->rx_bytes += skb->len; + u64_stats_update_end(&s->syncp); netif_receive_skb(skb); @@ -220,6 +226,11 @@ static int dsa_switch_rcv(struct sk_buff *skb, struct net_device *dev, } #ifdef CONFIG_PM_SLEEP +static bool dsa_is_port_initialized(struct dsa_switch *ds, int p) +{ + return ds->enabled_port_mask & (1 << p) && ds->ports[p].netdev; +} + int dsa_switch_suspend(struct dsa_switch *ds) { int i, ret = 0; @@ -271,10 +282,22 @@ static struct packet_type dsa_pack_type __read_mostly = { .func = dsa_switch_rcv, }; +static struct workqueue_struct *dsa_owq; + +bool dsa_schedule_work(struct work_struct *work) +{ + return queue_work(dsa_owq, work); +} + static int __init dsa_init_module(void) { int rc; + dsa_owq = alloc_ordered_workqueue("dsa_ordered", + WQ_MEM_RECLAIM); + if (!dsa_owq) + return -ENOMEM; + rc = dsa_slave_register_notifier(); if (rc) return rc; @@ -294,6 +317,7 @@ static void __exit dsa_cleanup_module(void) dsa_slave_unregister_notifier(); dev_remove_pack(&dsa_pack_type); dsa_legacy_unregister(); + destroy_workqueue(dsa_owq); } module_exit(dsa_cleanup_module); diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c index 20bc9c56fca0..873af0108e24 100644 --- a/net/dsa/dsa2.c +++ b/net/dsa/dsa2.c @@ -219,7 +219,7 @@ static int dsa_dsa_port_apply(struct dsa_port *port) struct dsa_switch *ds = port->ds; int err; - err = dsa_cpu_dsa_setup(ds, ds->dev, port, port->index); + err = dsa_cpu_dsa_setup(port); if (err) { dev_warn(ds->dev, "Failed to setup dsa port %d: %d\n", port->index, err); @@ -243,7 +243,7 @@ static int dsa_cpu_port_apply(struct dsa_port *port) struct dsa_switch *ds = port->ds; int err; - err = dsa_cpu_dsa_setup(ds, ds->dev, port, port->index); + err = dsa_cpu_dsa_setup(port); if (err) { dev_warn(ds->dev, "Failed to setup cpu port %d: %d\n", port->index, err); @@ -275,7 +275,7 @@ static int dsa_user_port_apply(struct dsa_port *port) if (!name) name = "eth%d"; - err = dsa_slave_create(ds, ds->dev, port->index, name); + err = dsa_slave_create(port, name); if (err) { dev_warn(ds->dev, "Failed to create slave %d: %d\n", port->index, err); diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h index 55982cc39b24..9c3eeb72462d 100644 --- a/net/dsa/dsa_priv.h +++ b/net/dsa/dsa_priv.h @@ -43,10 +43,10 @@ struct dsa_notifier_bridge_info { /* DSA_NOTIFIER_FDB_* */ struct dsa_notifier_fdb_info { - const struct switchdev_obj_port_fdb *fdb; - struct switchdev_trans *trans; int sw_index; int port; + const unsigned char *addr; + u16 vid; }; /* DSA_NOTIFIER_MDB_* */ @@ -65,18 +65,13 @@ struct dsa_notifier_vlan_info { int port; }; -struct dsa_device_ops { - struct sk_buff *(*xmit)(struct sk_buff *skb, struct net_device *dev); - struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev, - struct packet_type *pt, - struct net_device *orig_dev); -}; - struct dsa_slave_priv { /* Copy of dp->ds->dst->tag_ops->xmit for faster access in hot path */ struct sk_buff * (*xmit)(struct sk_buff *skb, struct net_device *dev); + struct pcpu_sw_netstats *stats64; + /* DSA port data, such as switch, port index, etc. */ struct dsa_port *dp; @@ -99,16 +94,23 @@ struct dsa_slave_priv { }; /* dsa.c */ -int dsa_cpu_dsa_setup(struct dsa_switch *ds, struct device *dev, - struct dsa_port *dport, int port); +int dsa_cpu_dsa_setup(struct dsa_port *port); void dsa_cpu_dsa_destroy(struct dsa_port *dport); const struct dsa_device_ops *dsa_resolve_tag_protocol(int tag_protocol); int dsa_cpu_port_ethtool_setup(struct dsa_port *cpu_dp); void dsa_cpu_port_ethtool_restore(struct dsa_port *cpu_dp); +bool dsa_schedule_work(struct work_struct *work); /* legacy.c */ int dsa_legacy_register(void); void dsa_legacy_unregister(void); +int dsa_legacy_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], + struct net_device *dev, + const unsigned char *addr, u16 vid, + u16 flags); +int dsa_legacy_fdb_del(struct ndmsg *ndm, struct nlattr *tb[], + struct net_device *dev, + const unsigned char *addr, u16 vid); /* port.c */ int dsa_port_set_state(struct dsa_port *dp, u8 state, @@ -120,35 +122,25 @@ int dsa_port_vlan_filtering(struct dsa_port *dp, bool vlan_filtering, struct switchdev_trans *trans); int dsa_port_ageing_time(struct dsa_port *dp, clock_t ageing_clock, struct switchdev_trans *trans); -int dsa_port_fdb_add(struct dsa_port *dp, - const struct switchdev_obj_port_fdb *fdb, - struct switchdev_trans *trans); -int dsa_port_fdb_del(struct dsa_port *dp, - const struct switchdev_obj_port_fdb *fdb); -int dsa_port_fdb_dump(struct dsa_port *dp, struct switchdev_obj_port_fdb *fdb, - switchdev_obj_dump_cb_t *cb); +int dsa_port_fdb_add(struct dsa_port *dp, const unsigned char *addr, + u16 vid); +int dsa_port_fdb_del(struct dsa_port *dp, const unsigned char *addr, + u16 vid); int dsa_port_mdb_add(struct dsa_port *dp, const struct switchdev_obj_port_mdb *mdb, struct switchdev_trans *trans); int dsa_port_mdb_del(struct dsa_port *dp, const struct switchdev_obj_port_mdb *mdb); -int dsa_port_mdb_dump(struct dsa_port *dp, struct switchdev_obj_port_mdb *mdb, - switchdev_obj_dump_cb_t *cb); int dsa_port_vlan_add(struct dsa_port *dp, const struct switchdev_obj_port_vlan *vlan, struct switchdev_trans *trans); int dsa_port_vlan_del(struct dsa_port *dp, const struct switchdev_obj_port_vlan *vlan); -int dsa_port_vlan_dump(struct dsa_port *dp, - struct switchdev_obj_port_vlan *vlan, - switchdev_obj_dump_cb_t *cb); - /* slave.c */ extern const struct dsa_device_ops notag_netdev_ops; void dsa_slave_mii_bus_init(struct dsa_switch *ds); void dsa_cpu_port_ethtool_init(struct ethtool_ops *ops); -int dsa_slave_create(struct dsa_switch *ds, struct device *parent, - int port, const char *name); +int dsa_slave_create(struct dsa_port *port, const char *name); void dsa_slave_destroy(struct net_device *slave_dev); int dsa_slave_suspend(struct net_device *slave_dev); int dsa_slave_resume(struct net_device *slave_dev); diff --git a/net/dsa/legacy.c b/net/dsa/legacy.c index 1d7a3282f2a7..91e6f7981d39 100644 --- a/net/dsa/legacy.c +++ b/net/dsa/legacy.c @@ -78,25 +78,23 @@ dsa_switch_probe(struct device *parent, struct device *host_dev, int sw_addr, } /* basic switch operations **************************************************/ -static int dsa_cpu_dsa_setups(struct dsa_switch *ds, struct device *dev) +static int dsa_cpu_dsa_setups(struct dsa_switch *ds) { - struct dsa_port *dport; int ret, port; for (port = 0; port < ds->num_ports; port++) { if (!(dsa_is_cpu_port(ds, port) || dsa_is_dsa_port(ds, port))) continue; - dport = &ds->ports[port]; - ret = dsa_cpu_dsa_setup(ds, dev, dport, port); + ret = dsa_cpu_dsa_setup(&ds->ports[port]); if (ret) return ret; } return 0; } -static int dsa_switch_setup_one(struct dsa_switch *ds, struct net_device *master, - struct device *parent) +static int dsa_switch_setup_one(struct dsa_switch *ds, + struct net_device *master) { const struct dsa_switch_ops *ops = ds->ops; struct dsa_switch_tree *dst = ds->dst; @@ -176,7 +174,7 @@ static int dsa_switch_setup_one(struct dsa_switch *ds, struct net_device *master } if (!ds->slave_mii_bus && ops->phy_read) { - ds->slave_mii_bus = devm_mdiobus_alloc(parent); + ds->slave_mii_bus = devm_mdiobus_alloc(ds->dev); if (!ds->slave_mii_bus) return -ENOMEM; dsa_slave_mii_bus_init(ds); @@ -196,14 +194,14 @@ static int dsa_switch_setup_one(struct dsa_switch *ds, struct net_device *master if (!(ds->enabled_port_mask & (1 << i))) continue; - ret = dsa_slave_create(ds, parent, i, cd->port_names[i]); + ret = dsa_slave_create(&ds->ports[i], cd->port_names[i]); if (ret < 0) netdev_err(master, "[%d]: can't create dsa slave device for port %d(%s): %d\n", index, i, cd->port_names[i], ret); } /* Perform configuration of the CPU and DSA ports */ - ret = dsa_cpu_dsa_setups(ds, parent); + ret = dsa_cpu_dsa_setups(ds); if (ret < 0) netdev_err(master, "[%d] : can't configure CPU and DSA ports\n", index); @@ -252,7 +250,7 @@ dsa_switch_setup(struct dsa_switch_tree *dst, struct net_device *master, ds->ops = ops; ds->priv = priv; - ret = dsa_switch_setup_one(ds, master, parent); + ret = dsa_switch_setup_one(ds, master); if (ret) return ERR_PTR(ret); @@ -741,6 +739,28 @@ static int dsa_resume(struct device *d) } #endif +/* legacy way, bypassing the bridge *****************************************/ +int dsa_legacy_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], + struct net_device *dev, + const unsigned char *addr, u16 vid, + u16 flags) +{ + struct dsa_slave_priv *p = netdev_priv(dev); + struct dsa_port *dp = p->dp; + + return dsa_port_fdb_add(dp, addr, vid); +} + +int dsa_legacy_fdb_del(struct ndmsg *ndm, struct nlattr *tb[], + struct net_device *dev, + const unsigned char *addr, u16 vid) +{ + struct dsa_slave_priv *p = netdev_priv(dev); + struct dsa_port *dp = p->dp; + + return dsa_port_fdb_del(dp, addr, vid); +} + static SIMPLE_DEV_PM_OPS(dsa_pm_ops, dsa_suspend, dsa_resume); static const struct of_device_id dsa_of_match_table[] = { diff --git a/net/dsa/port.c b/net/dsa/port.c index efc3bce3a89d..659676ba3f8b 100644 --- a/net/dsa/port.c +++ b/net/dsa/port.c @@ -146,43 +146,33 @@ int dsa_port_ageing_time(struct dsa_port *dp, clock_t ageing_clock, return dsa_port_notify(dp, DSA_NOTIFIER_AGEING_TIME, &info); } -int dsa_port_fdb_add(struct dsa_port *dp, - const struct switchdev_obj_port_fdb *fdb, - struct switchdev_trans *trans) +int dsa_port_fdb_add(struct dsa_port *dp, const unsigned char *addr, + u16 vid) { struct dsa_notifier_fdb_info info = { .sw_index = dp->ds->index, .port = dp->index, - .trans = trans, - .fdb = fdb, + .addr = addr, + .vid = vid, }; return dsa_port_notify(dp, DSA_NOTIFIER_FDB_ADD, &info); } -int dsa_port_fdb_del(struct dsa_port *dp, - const struct switchdev_obj_port_fdb *fdb) +int dsa_port_fdb_del(struct dsa_port *dp, const unsigned char *addr, + u16 vid) { struct dsa_notifier_fdb_info info = { .sw_index = dp->ds->index, .port = dp->index, - .fdb = fdb, + .addr = addr, + .vid = vid, + }; return dsa_port_notify(dp, DSA_NOTIFIER_FDB_DEL, &info); } -int dsa_port_fdb_dump(struct dsa_port *dp, struct switchdev_obj_port_fdb *fdb, - switchdev_obj_dump_cb_t *cb) -{ - struct dsa_switch *ds = dp->ds; - - if (ds->ops->port_fdb_dump) - return ds->ops->port_fdb_dump(ds, dp->index, fdb, cb); - - return -EOPNOTSUPP; -} - int dsa_port_mdb_add(struct dsa_port *dp, const struct switchdev_obj_port_mdb *mdb, struct switchdev_trans *trans) @@ -209,17 +199,6 @@ int dsa_port_mdb_del(struct dsa_port *dp, return dsa_port_notify(dp, DSA_NOTIFIER_MDB_DEL, &info); } -int dsa_port_mdb_dump(struct dsa_port *dp, struct switchdev_obj_port_mdb *mdb, - switchdev_obj_dump_cb_t *cb) -{ - struct dsa_switch *ds = dp->ds; - - if (ds->ops->port_mdb_dump) - return ds->ops->port_mdb_dump(ds, dp->index, mdb, cb); - - return -EOPNOTSUPP; -} - int dsa_port_vlan_add(struct dsa_port *dp, const struct switchdev_obj_port_vlan *vlan, struct switchdev_trans *trans) @@ -245,15 +224,3 @@ int dsa_port_vlan_del(struct dsa_port *dp, return dsa_port_notify(dp, DSA_NOTIFIER_VLAN_DEL, &info); } - -int dsa_port_vlan_dump(struct dsa_port *dp, - struct switchdev_obj_port_vlan *vlan, - switchdev_obj_dump_cb_t *cb) -{ - struct dsa_switch *ds = dp->ds; - - if (ds->ops->port_vlan_dump) - return ds->ops->port_vlan_dump(ds, dp->index, vlan, cb); - - return -EOPNOTSUPP; -} diff --git a/net/dsa/slave.c b/net/dsa/slave.c index 9507bd38cf04..2afa99506f8b 100644 --- a/net/dsa/slave.c +++ b/net/dsa/slave.c @@ -199,6 +199,83 @@ out: return 0; } +struct dsa_slave_dump_ctx { + struct net_device *dev; + struct sk_buff *skb; + struct netlink_callback *cb; + int idx; +}; + +static int +dsa_slave_port_fdb_do_dump(const unsigned char *addr, u16 vid, + bool is_static, void *data) +{ + struct dsa_slave_dump_ctx *dump = data; + u32 portid = NETLINK_CB(dump->cb->skb).portid; + u32 seq = dump->cb->nlh->nlmsg_seq; + struct nlmsghdr *nlh; + struct ndmsg *ndm; + + if (dump->idx < dump->cb->args[2]) + 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 = dump->dev->ifindex; + ndm->ndm_state = is_static ? NUD_NOARP : NUD_REACHABLE; + + if (nla_put(dump->skb, NDA_LLADDR, ETH_ALEN, addr)) + goto nla_put_failure; + + if (vid && nla_put_u16(dump->skb, NDA_VLAN, 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; +} + +static int +dsa_slave_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, + struct net_device *dev, struct net_device *filter_dev, + int *idx) +{ + struct dsa_slave_dump_ctx dump = { + .dev = dev, + .skb = skb, + .cb = cb, + .idx = *idx, + }; + struct dsa_slave_priv *p = netdev_priv(dev); + struct dsa_port *dp = p->dp; + struct dsa_switch *ds = dp->ds; + int err; + + if (!ds->ops->port_fdb_dump) + return -EOPNOTSUPP; + + err = ds->ops->port_fdb_dump(ds, dp->index, + dsa_slave_port_fdb_do_dump, + &dump); + *idx = dump.idx; + return err; +} + static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) { struct dsa_slave_priv *p = netdev_priv(dev); @@ -250,9 +327,6 @@ static int dsa_slave_port_obj_add(struct net_device *dev, */ switch (obj->id) { - case SWITCHDEV_OBJ_ID_PORT_FDB: - err = dsa_port_fdb_add(dp, SWITCHDEV_OBJ_PORT_FDB(obj), trans); - break; case SWITCHDEV_OBJ_ID_PORT_MDB: err = dsa_port_mdb_add(dp, SWITCHDEV_OBJ_PORT_MDB(obj), trans); break; @@ -276,9 +350,6 @@ static int dsa_slave_port_obj_del(struct net_device *dev, int err; switch (obj->id) { - case SWITCHDEV_OBJ_ID_PORT_FDB: - err = dsa_port_fdb_del(dp, SWITCHDEV_OBJ_PORT_FDB(obj)); - break; case SWITCHDEV_OBJ_ID_PORT_MDB: err = dsa_port_mdb_del(dp, SWITCHDEV_OBJ_PORT_MDB(obj)); break; @@ -293,32 +364,6 @@ static int dsa_slave_port_obj_del(struct net_device *dev, return err; } -static int dsa_slave_port_obj_dump(struct net_device *dev, - struct switchdev_obj *obj, - switchdev_obj_dump_cb_t *cb) -{ - struct dsa_slave_priv *p = netdev_priv(dev); - struct dsa_port *dp = p->dp; - int err; - - switch (obj->id) { - case SWITCHDEV_OBJ_ID_PORT_FDB: - err = dsa_port_fdb_dump(dp, SWITCHDEV_OBJ_PORT_FDB(obj), cb); - break; - case SWITCHDEV_OBJ_ID_PORT_MDB: - err = dsa_port_mdb_dump(dp, SWITCHDEV_OBJ_PORT_MDB(obj), cb); - break; - case SWITCHDEV_OBJ_ID_PORT_VLAN: - err = dsa_port_vlan_dump(dp, SWITCHDEV_OBJ_PORT_VLAN(obj), cb); - break; - default: - err = -EOPNOTSUPP; - break; - } - - return err; -} - static int dsa_slave_port_attr_get(struct net_device *dev, struct switchdev_attr *attr) { @@ -330,6 +375,9 @@ static int dsa_slave_port_attr_get(struct net_device *dev, attr->u.ppid.id_len = sizeof(ds->index); memcpy(&attr->u.ppid.id, &ds->index, attr->u.ppid.id_len); break; + case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS_SUPPORT: + attr->u.brport_flags_support = 0; + break; default: return -EOPNOTSUPP; } @@ -352,10 +400,14 @@ static inline netdev_tx_t dsa_netpoll_send_skb(struct dsa_slave_priv *p, static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev) { struct dsa_slave_priv *p = netdev_priv(dev); + struct pcpu_sw_netstats *s; struct sk_buff *nskb; - dev->stats.tx_packets++; - dev->stats.tx_bytes += skb->len; + s = this_cpu_ptr(p->stats64); + u64_stats_update_begin(&s->syncp); + s->tx_packets++; + s->tx_bytes += skb->len; + u64_stats_update_end(&s->syncp); /* Transmit function may have to reallocate the original SKB, * in which case it must have freed it. Only free it here on error. @@ -594,11 +646,26 @@ static void dsa_slave_get_ethtool_stats(struct net_device *dev, { struct dsa_slave_priv *p = netdev_priv(dev); struct dsa_switch *ds = p->dp->ds; - - data[0] = dev->stats.tx_packets; - data[1] = dev->stats.tx_bytes; - data[2] = dev->stats.rx_packets; - data[3] = dev->stats.rx_bytes; + struct pcpu_sw_netstats *s; + unsigned int start; + int i; + + for_each_possible_cpu(i) { + u64 tx_packets, tx_bytes, rx_packets, rx_bytes; + + s = per_cpu_ptr(p->stats64, i); + do { + start = u64_stats_fetch_begin_irq(&s->syncp); + tx_packets = s->tx_packets; + tx_bytes = s->tx_bytes; + rx_packets = s->rx_packets; + rx_bytes = s->rx_bytes; + } while (u64_stats_fetch_retry_irq(&s->syncp, start)); + data[0] += tx_packets; + data[1] += tx_bytes; + data[2] += rx_packets; + data[3] += rx_bytes; + } if (ds->ops->get_ethtool_stats) ds->ops->get_ethtool_stats(ds, p->dp->index, data + 4); } @@ -648,17 +715,24 @@ static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e) struct dsa_switch *ds = p->dp->ds; int ret; - if (!ds->ops->set_eee) + /* Port's PHY and MAC both need to be EEE capable */ + if (!p->phy) + return -ENODEV; + + if (!ds->ops->set_mac_eee) return -EOPNOTSUPP; - ret = ds->ops->set_eee(ds, p->dp->index, p->phy, e); + ret = ds->ops->set_mac_eee(ds, p->dp->index, e); if (ret) return ret; - if (p->phy) - ret = phy_ethtool_set_eee(p->phy, e); + if (e->eee_enabled) { + ret = phy_init_eee(p->phy, 0); + if (ret) + return ret; + } - return ret; + return phy_ethtool_set_eee(p->phy, e); } static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e) @@ -667,17 +741,18 @@ static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e) struct dsa_switch *ds = p->dp->ds; int ret; - if (!ds->ops->get_eee) + /* Port's PHY and MAC both need to be EEE capable */ + if (!p->phy) + return -ENODEV; + + if (!ds->ops->get_mac_eee) return -EOPNOTSUPP; - ret = ds->ops->get_eee(ds, p->dp->index, e); + ret = ds->ops->get_mac_eee(ds, p->dp->index, e); if (ret) return ret; - if (p->phy) - ret = phy_ethtool_get_eee(p->phy, e); - - return ret; + return phy_ethtool_get_eee(p->phy, e); } #ifdef CONFIG_NET_POLL_CONTROLLER @@ -747,12 +822,12 @@ dsa_slave_mall_tc_entry_find(struct dsa_slave_priv *p, } static int dsa_slave_add_cls_matchall(struct net_device *dev, - __be16 protocol, struct tc_cls_matchall_offload *cls, bool ingress) { struct dsa_slave_priv *p = netdev_priv(dev); struct dsa_mall_tc_entry *mall_tc_entry; + __be16 protocol = cls->common.protocol; struct dsa_switch *ds = p->dp->ds; struct net *net = dev_net(dev); struct dsa_slave_priv *to_p; @@ -765,7 +840,7 @@ static int dsa_slave_add_cls_matchall(struct net_device *dev, if (!ds->ops->port_mirror_add) return err; - if (!tc_single_action(cls->exts)) + if (!tcf_exts_has_one_action(cls->exts)) return err; tcf_exts_to_list(cls->exts, &actions); @@ -836,31 +911,71 @@ static void dsa_slave_del_cls_matchall(struct net_device *dev, kfree(mall_tc_entry); } -static int dsa_slave_setup_tc(struct net_device *dev, u32 handle, - u32 chain_index, __be16 protocol, - struct tc_to_netdev *tc) +static int dsa_slave_setup_tc_cls_matchall(struct net_device *dev, + struct tc_cls_matchall_offload *cls) { - bool ingress = TC_H_MAJ(handle) == TC_H_MAJ(TC_H_INGRESS); + bool ingress; - if (chain_index) + if (is_classid_clsact_ingress(cls->common.classid)) + ingress = true; + else if (is_classid_clsact_egress(cls->common.classid)) + ingress = false; + else return -EOPNOTSUPP; - switch (tc->type) { - case TC_SETUP_MATCHALL: - switch (tc->cls_mall->command) { - case TC_CLSMATCHALL_REPLACE: - return dsa_slave_add_cls_matchall(dev, protocol, - tc->cls_mall, - ingress); - case TC_CLSMATCHALL_DESTROY: - dsa_slave_del_cls_matchall(dev, tc->cls_mall); - return 0; - } + if (cls->common.chain_index) + return -EOPNOTSUPP; + + switch (cls->command) { + case TC_CLSMATCHALL_REPLACE: + return dsa_slave_add_cls_matchall(dev, cls, ingress); + case TC_CLSMATCHALL_DESTROY: + dsa_slave_del_cls_matchall(dev, cls); + return 0; default: return -EOPNOTSUPP; } } +static int dsa_slave_setup_tc(struct net_device *dev, enum tc_setup_type type, + void *type_data) +{ + switch (type) { + case TC_SETUP_CLSMATCHALL: + return dsa_slave_setup_tc_cls_matchall(dev, type_data); + default: + return -EOPNOTSUPP; + } +} + +static void dsa_slave_get_stats64(struct net_device *dev, + struct rtnl_link_stats64 *stats) +{ + struct dsa_slave_priv *p = netdev_priv(dev); + struct pcpu_sw_netstats *s; + unsigned int start; + int i; + + netdev_stats_to_stats64(stats, &dev->stats); + for_each_possible_cpu(i) { + u64 tx_packets, tx_bytes, rx_packets, rx_bytes; + + s = per_cpu_ptr(p->stats64, i); + do { + start = u64_stats_fetch_begin_irq(&s->syncp); + tx_packets = s->tx_packets; + tx_bytes = s->tx_bytes; + rx_packets = s->rx_packets; + rx_bytes = s->rx_bytes; + } while (u64_stats_fetch_retry_irq(&s->syncp, start)); + + stats->tx_packets += tx_packets; + stats->tx_bytes += tx_bytes; + stats->rx_packets += rx_packets; + stats->rx_bytes += rx_bytes; + } +} + void dsa_cpu_port_ethtool_init(struct ethtool_ops *ops) { ops->get_sset_count = dsa_cpu_port_get_sset_count; @@ -921,9 +1036,9 @@ static const struct net_device_ops dsa_slave_netdev_ops = { .ndo_change_rx_flags = dsa_slave_change_rx_flags, .ndo_set_rx_mode = dsa_slave_set_rx_mode, .ndo_set_mac_address = dsa_slave_set_mac_address, - .ndo_fdb_add = switchdev_port_fdb_add, - .ndo_fdb_del = switchdev_port_fdb_del, - .ndo_fdb_dump = switchdev_port_fdb_dump, + .ndo_fdb_add = dsa_legacy_fdb_add, + .ndo_fdb_del = dsa_legacy_fdb_del, + .ndo_fdb_dump = dsa_slave_fdb_dump, .ndo_do_ioctl = dsa_slave_ioctl, .ndo_get_iflink = dsa_slave_get_iflink, #ifdef CONFIG_NET_POLL_CONTROLLER @@ -931,11 +1046,9 @@ static const struct net_device_ops dsa_slave_netdev_ops = { .ndo_netpoll_cleanup = dsa_slave_netpoll_cleanup, .ndo_poll_controller = dsa_slave_poll_controller, #endif - .ndo_bridge_getlink = switchdev_port_bridge_getlink, - .ndo_bridge_setlink = switchdev_port_bridge_setlink, - .ndo_bridge_dellink = switchdev_port_bridge_dellink, .ndo_get_phys_port_name = dsa_slave_get_phys_port_name, .ndo_setup_tc = dsa_slave_setup_tc, + .ndo_get_stats64 = dsa_slave_get_stats64, }; static const struct switchdev_ops dsa_slave_switchdev_ops = { @@ -943,7 +1056,6 @@ static const struct switchdev_ops dsa_slave_switchdev_ops = { .switchdev_port_attr_set = dsa_slave_port_attr_set, .switchdev_port_obj_add = dsa_slave_port_obj_add, .switchdev_port_obj_del = dsa_slave_port_obj_del, - .switchdev_port_obj_dump = dsa_slave_port_obj_dump, }; static struct device_type dsa_type = { @@ -1134,9 +1246,9 @@ int dsa_slave_resume(struct net_device *slave_dev) return 0; } -int dsa_slave_create(struct dsa_switch *ds, struct device *parent, - int port, const char *name) +int dsa_slave_create(struct dsa_port *port, const char *name) { + struct dsa_switch *ds = port->ds; struct dsa_switch_tree *dst = ds->dst; struct net_device *master; struct net_device *slave_dev; @@ -1147,8 +1259,12 @@ int dsa_slave_create(struct dsa_switch *ds, struct device *parent, cpu_dp = ds->dst->cpu_dp; master = cpu_dp->netdev; - slave_dev = alloc_netdev(sizeof(struct dsa_slave_priv), name, - NET_NAME_UNKNOWN, ether_setup); + if (!ds->num_tx_queues) + ds->num_tx_queues = 1; + + slave_dev = alloc_netdev_mqs(sizeof(struct dsa_slave_priv), name, + NET_NAME_UNKNOWN, ether_setup, + ds->num_tx_queues, 1); if (slave_dev == NULL) return -ENOMEM; @@ -1166,12 +1282,17 @@ int dsa_slave_create(struct dsa_switch *ds, struct device *parent, netdev_for_each_tx_queue(slave_dev, dsa_slave_set_lockdep_class_one, NULL); - SET_NETDEV_DEV(slave_dev, parent); - slave_dev->dev.of_node = ds->ports[port].dn; + SET_NETDEV_DEV(slave_dev, port->ds->dev); + slave_dev->dev.of_node = port->dn; slave_dev->vlan_features = master->vlan_features; p = netdev_priv(slave_dev); - p->dp = &ds->ports[port]; + p->stats64 = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); + if (!p->stats64) { + free_netdev(slave_dev); + return -ENOMEM; + } + p->dp = port; INIT_LIST_HEAD(&p->mall_tc_list); p->xmit = dst->tag_ops->xmit; @@ -1179,12 +1300,13 @@ int dsa_slave_create(struct dsa_switch *ds, struct device *parent, p->old_link = -1; p->old_duplex = -1; - ds->ports[port].netdev = slave_dev; + port->netdev = slave_dev; ret = register_netdev(slave_dev); if (ret) { netdev_err(master, "error %d registering interface %s\n", ret, slave_dev->name); - ds->ports[port].netdev = NULL; + port->netdev = NULL; + free_percpu(p->stats64); free_netdev(slave_dev); return ret; } @@ -1195,6 +1317,7 @@ int dsa_slave_create(struct dsa_switch *ds, struct device *parent, if (ret) { netdev_err(master, "error %d setting up slave phy\n", ret); unregister_netdev(slave_dev); + free_percpu(p->stats64); free_netdev(slave_dev); return ret; } @@ -1217,6 +1340,7 @@ void dsa_slave_destroy(struct net_device *slave_dev) of_phy_deregister_fixed_link(port_dn); } unregister_netdev(slave_dev); + free_percpu(p->stats64); free_netdev(slave_dev); } @@ -1259,19 +1383,142 @@ static int dsa_slave_netdevice_event(struct notifier_block *nb, return NOTIFY_DONE; } +struct dsa_switchdev_event_work { + struct work_struct work; + struct switchdev_notifier_fdb_info fdb_info; + struct net_device *dev; + unsigned long event; +}; + +static void dsa_slave_switchdev_event_work(struct work_struct *work) +{ + struct dsa_switchdev_event_work *switchdev_work = + container_of(work, struct dsa_switchdev_event_work, work); + struct net_device *dev = switchdev_work->dev; + struct switchdev_notifier_fdb_info *fdb_info; + struct dsa_slave_priv *p = netdev_priv(dev); + int err; + + rtnl_lock(); + switch (switchdev_work->event) { + case SWITCHDEV_FDB_ADD_TO_DEVICE: + fdb_info = &switchdev_work->fdb_info; + err = dsa_port_fdb_add(p->dp, fdb_info->addr, fdb_info->vid); + if (err) { + netdev_dbg(dev, "fdb add failed err=%d\n", err); + break; + } + call_switchdev_notifiers(SWITCHDEV_FDB_OFFLOADED, dev, + &fdb_info->info); + break; + + case SWITCHDEV_FDB_DEL_TO_DEVICE: + fdb_info = &switchdev_work->fdb_info; + err = dsa_port_fdb_del(p->dp, fdb_info->addr, fdb_info->vid); + if (err) { + netdev_dbg(dev, "fdb del failed err=%d\n", err); + dev_close(dev); + } + break; + } + rtnl_unlock(); + + kfree(switchdev_work->fdb_info.addr); + kfree(switchdev_work); + dev_put(dev); +} + +static int +dsa_slave_switchdev_fdb_work_init(struct dsa_switchdev_event_work * + switchdev_work, + const struct switchdev_notifier_fdb_info * + fdb_info) +{ + memcpy(&switchdev_work->fdb_info, fdb_info, + sizeof(switchdev_work->fdb_info)); + switchdev_work->fdb_info.addr = kzalloc(ETH_ALEN, GFP_ATOMIC); + if (!switchdev_work->fdb_info.addr) + return -ENOMEM; + ether_addr_copy((u8 *)switchdev_work->fdb_info.addr, + fdb_info->addr); + return 0; +} + +/* Called under rcu_read_lock() */ +static int dsa_slave_switchdev_event(struct notifier_block *unused, + unsigned long event, void *ptr) +{ + struct net_device *dev = switchdev_notifier_info_to_dev(ptr); + struct dsa_switchdev_event_work *switchdev_work; + + if (!dsa_slave_dev_check(dev)) + return NOTIFY_DONE; + + switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC); + if (!switchdev_work) + return NOTIFY_BAD; + + INIT_WORK(&switchdev_work->work, + dsa_slave_switchdev_event_work); + switchdev_work->dev = dev; + switchdev_work->event = event; + + switch (event) { + case SWITCHDEV_FDB_ADD_TO_DEVICE: /* fall through */ + case SWITCHDEV_FDB_DEL_TO_DEVICE: + if (dsa_slave_switchdev_fdb_work_init(switchdev_work, + ptr)) + goto err_fdb_work_init; + dev_hold(dev); + break; + default: + kfree(switchdev_work); + return NOTIFY_DONE; + } + + dsa_schedule_work(&switchdev_work->work); + return NOTIFY_OK; + +err_fdb_work_init: + kfree(switchdev_work); + return NOTIFY_BAD; +} + static struct notifier_block dsa_slave_nb __read_mostly = { - .notifier_call = dsa_slave_netdevice_event, + .notifier_call = dsa_slave_netdevice_event, +}; + +static struct notifier_block dsa_slave_switchdev_notifier = { + .notifier_call = dsa_slave_switchdev_event, }; int dsa_slave_register_notifier(void) { - return register_netdevice_notifier(&dsa_slave_nb); + int err; + + err = register_netdevice_notifier(&dsa_slave_nb); + if (err) + return err; + + err = register_switchdev_notifier(&dsa_slave_switchdev_notifier); + if (err) + goto err_switchdev_nb; + + return 0; + +err_switchdev_nb: + unregister_netdevice_notifier(&dsa_slave_nb); + return err; } void dsa_slave_unregister_notifier(void) { int err; + err = unregister_switchdev_notifier(&dsa_slave_switchdev_notifier); + if (err) + pr_err("DSA: failed to unregister switchdev notifier (%d)\n", err); + err = unregister_netdevice_notifier(&dsa_slave_nb); if (err) pr_err("DSA: failed to unregister slave notifier (%d)\n", err); diff --git a/net/dsa/switch.c b/net/dsa/switch.c index 97e2e9c8cf3f..e6c06aa349a6 100644 --- a/net/dsa/switch.c +++ b/net/dsa/switch.c @@ -83,30 +83,20 @@ static int dsa_switch_bridge_leave(struct dsa_switch *ds, static int dsa_switch_fdb_add(struct dsa_switch *ds, struct dsa_notifier_fdb_info *info) { - const struct switchdev_obj_port_fdb *fdb = info->fdb; - struct switchdev_trans *trans = info->trans; - /* Do not care yet about other switch chips of the fabric */ if (ds->index != info->sw_index) return 0; - if (switchdev_trans_ph_prepare(trans)) { - if (!ds->ops->port_fdb_prepare || !ds->ops->port_fdb_add) - return -EOPNOTSUPP; - - return ds->ops->port_fdb_prepare(ds, info->port, fdb, trans); - } - - ds->ops->port_fdb_add(ds, info->port, fdb, trans); + if (!ds->ops->port_fdb_add) + return -EOPNOTSUPP; - return 0; + return ds->ops->port_fdb_add(ds, info->port, info->addr, + info->vid); } static int dsa_switch_fdb_del(struct dsa_switch *ds, struct dsa_notifier_fdb_info *info) { - const struct switchdev_obj_port_fdb *fdb = info->fdb; - /* Do not care yet about other switch chips of the fabric */ if (ds->index != info->sw_index) return 0; @@ -114,7 +104,8 @@ static int dsa_switch_fdb_del(struct dsa_switch *ds, if (!ds->ops->port_fdb_del) return -EOPNOTSUPP; - return ds->ops->port_fdb_del(ds, info->port, fdb); + return ds->ops->port_fdb_del(ds, info->port, info->addr, + info->vid); } static int dsa_switch_mdb_add(struct dsa_switch *ds, diff --git a/net/dsa/tag_brcm.c b/net/dsa/tag_brcm.c index c697d9815177..dbb016434ace 100644 --- a/net/dsa/tag_brcm.c +++ b/net/dsa/tag_brcm.c @@ -62,6 +62,7 @@ static struct sk_buff *brcm_tag_xmit(struct sk_buff *skb, struct net_device *dev) { struct dsa_slave_priv *p = netdev_priv(dev); + u16 queue = skb_get_queue_mapping(skb); u8 *brcm_tag; if (skb_cow_head(skb, BRCM_TAG_LEN) < 0) @@ -78,7 +79,7 @@ static struct sk_buff *brcm_tag_xmit(struct sk_buff *skb, struct net_device *dev * deprecated */ brcm_tag[0] = (1 << BRCM_OPCODE_SHIFT) | - ((skb->priority << BRCM_IG_TC_SHIFT) & BRCM_IG_TC_MASK); + ((queue & BRCM_IG_TC_MASK) << BRCM_IG_TC_SHIFT); brcm_tag[1] = 0; brcm_tag[2] = 0; if (p->dp->index == 8) @@ -89,8 +90,7 @@ static struct sk_buff *brcm_tag_xmit(struct sk_buff *skb, struct net_device *dev } static struct sk_buff *brcm_tag_rcv(struct sk_buff *skb, struct net_device *dev, - struct packet_type *pt, - struct net_device *orig_dev) + struct packet_type *pt) { struct dsa_switch_tree *dst = dev->dsa_ptr; struct dsa_port *cpu_dp = dsa_get_cpu_port(dst); diff --git a/net/dsa/tag_dsa.c b/net/dsa/tag_dsa.c index 12867a4b458f..fbf9ca954773 100644 --- a/net/dsa/tag_dsa.c +++ b/net/dsa/tag_dsa.c @@ -65,8 +65,7 @@ static struct sk_buff *dsa_xmit(struct sk_buff *skb, struct net_device *dev) } static struct sk_buff *dsa_rcv(struct sk_buff *skb, struct net_device *dev, - struct packet_type *pt, - struct net_device *orig_dev) + struct packet_type *pt) { struct dsa_switch_tree *dst = dev->dsa_ptr; struct dsa_switch *ds; diff --git a/net/dsa/tag_edsa.c b/net/dsa/tag_edsa.c index 67a9d26f9075..76367ba1b2e2 100644 --- a/net/dsa/tag_edsa.c +++ b/net/dsa/tag_edsa.c @@ -78,8 +78,7 @@ static struct sk_buff *edsa_xmit(struct sk_buff *skb, struct net_device *dev) } static struct sk_buff *edsa_rcv(struct sk_buff *skb, struct net_device *dev, - struct packet_type *pt, - struct net_device *orig_dev) + struct packet_type *pt) { struct dsa_switch_tree *dst = dev->dsa_ptr; struct dsa_switch *ds; diff --git a/net/dsa/tag_ksz.c b/net/dsa/tag_ksz.c index fcd90f79458e..010ca0a336c4 100644 --- a/net/dsa/tag_ksz.c +++ b/net/dsa/tag_ksz.c @@ -78,8 +78,7 @@ static struct sk_buff *ksz_xmit(struct sk_buff *skb, struct net_device *dev) } static struct sk_buff *ksz_rcv(struct sk_buff *skb, struct net_device *dev, - struct packet_type *pt, - struct net_device *orig_dev) + struct packet_type *pt) { struct dsa_switch_tree *dst = dev->dsa_ptr; struct dsa_port *cpu_dp = dsa_get_cpu_port(dst); diff --git a/net/dsa/tag_lan9303.c b/net/dsa/tag_lan9303.c index 247774d149f9..0b9826105e42 100644 --- a/net/dsa/tag_lan9303.c +++ b/net/dsa/tag_lan9303.c @@ -39,7 +39,6 @@ */ #define LAN9303_TAG_LEN 4 -#define LAN9303_MAX_PORTS 3 static struct sk_buff *lan9303_xmit(struct sk_buff *skb, struct net_device *dev) { @@ -69,7 +68,7 @@ static struct sk_buff *lan9303_xmit(struct sk_buff *skb, struct net_device *dev) } static struct sk_buff *lan9303_rcv(struct sk_buff *skb, struct net_device *dev, - struct packet_type *pt, struct net_device *orig_dev) + struct packet_type *pt) { u16 *lan9303_tag; struct dsa_switch_tree *dst = dev->dsa_ptr; @@ -104,7 +103,7 @@ static struct sk_buff *lan9303_rcv(struct sk_buff *skb, struct net_device *dev, source_port = ntohs(lan9303_tag[1]) & 0x3; - if (source_port >= LAN9303_MAX_PORTS) { + if (source_port >= ds->num_ports) { dev_warn_ratelimited(&dev->dev, "Dropping packet due to invalid source port\n"); return NULL; } diff --git a/net/dsa/tag_mtk.c b/net/dsa/tag_mtk.c index 2f32b7ea3365..ec8ee5f43255 100644 --- a/net/dsa/tag_mtk.c +++ b/net/dsa/tag_mtk.c @@ -44,8 +44,7 @@ static struct sk_buff *mtk_tag_xmit(struct sk_buff *skb, } static struct sk_buff *mtk_tag_rcv(struct sk_buff *skb, struct net_device *dev, - struct packet_type *pt, - struct net_device *orig_dev) + struct packet_type *pt) { struct dsa_switch_tree *dst = dev->dsa_ptr; struct dsa_switch *ds; @@ -87,7 +86,17 @@ static struct sk_buff *mtk_tag_rcv(struct sk_buff *skb, struct net_device *dev, return skb; } +static int mtk_tag_flow_dissect(const struct sk_buff *skb, __be16 *proto, + int *offset) +{ + *offset = 4; + *proto = ((__be16 *)skb->data)[1]; + + return 0; +} + const struct dsa_device_ops mtk_netdev_ops = { - .xmit = mtk_tag_xmit, - .rcv = mtk_tag_rcv, + .xmit = mtk_tag_xmit, + .rcv = mtk_tag_rcv, + .flow_dissect = mtk_tag_flow_dissect, }; diff --git a/net/dsa/tag_qca.c b/net/dsa/tag_qca.c index 1867a3d11f28..1d4c70711c0f 100644 --- a/net/dsa/tag_qca.c +++ b/net/dsa/tag_qca.c @@ -63,8 +63,7 @@ static struct sk_buff *qca_tag_xmit(struct sk_buff *skb, struct net_device *dev) } static struct sk_buff *qca_tag_rcv(struct sk_buff *skb, struct net_device *dev, - struct packet_type *pt, - struct net_device *orig_dev) + struct packet_type *pt) { struct dsa_switch_tree *dst = dev->dsa_ptr; struct dsa_port *cpu_dp = dsa_get_cpu_port(dst); diff --git a/net/dsa/tag_trailer.c b/net/dsa/tag_trailer.c index 9c7b1d74a5c6..d2fd4923aa3e 100644 --- a/net/dsa/tag_trailer.c +++ b/net/dsa/tag_trailer.c @@ -56,8 +56,7 @@ static struct sk_buff *trailer_xmit(struct sk_buff *skb, struct net_device *dev) } static struct sk_buff *trailer_rcv(struct sk_buff *skb, struct net_device *dev, - struct packet_type *pt, - struct net_device *orig_dev) + struct packet_type *pt) { struct dsa_switch_tree *dst = dev->dsa_ptr; struct dsa_port *cpu_dp = dsa_get_cpu_port(dst); |