diff options
Diffstat (limited to 'net/dsa')
| -rw-r--r-- | net/dsa/Kconfig | 2 | ||||
| -rw-r--r-- | net/dsa/dsa.c | 2 | ||||
| -rw-r--r-- | net/dsa/dsa2.c | 19 | ||||
| -rw-r--r-- | net/dsa/dsa_priv.h | 10 | ||||
| -rw-r--r-- | net/dsa/master.c | 60 | ||||
| -rw-r--r-- | net/dsa/port.c | 69 | ||||
| -rw-r--r-- | net/dsa/slave.c | 186 | ||||
| -rw-r--r-- | net/dsa/switch.c | 42 | ||||
| -rw-r--r-- | net/dsa/tag_dsa.c | 9 | ||||
| -rw-r--r-- | net/dsa/tag_edsa.c | 9 | ||||
| -rw-r--r-- | net/dsa/tag_ksz.c | 36 |
11 files changed, 388 insertions, 56 deletions
diff --git a/net/dsa/Kconfig b/net/dsa/Kconfig index 91e52973ee13..fab49132345f 100644 --- a/net/dsa/Kconfig +++ b/net/dsa/Kconfig @@ -6,7 +6,7 @@ config HAVE_NET_DSA config NET_DSA tristate "Distributed Switch Architecture" - depends on HAVE_NET_DSA && MAY_USE_DEVLINK + depends on HAVE_NET_DSA depends on BRIDGE || BRIDGE=n select NET_SWITCHDEV select PHYLINK diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c index aee909bcddc4..36de4f2a3366 100644 --- a/net/dsa/dsa.c +++ b/net/dsa/dsa.c @@ -57,6 +57,7 @@ const struct dsa_device_ops *dsa_device_ops[DSA_TAG_LAST] = { #endif #ifdef CONFIG_NET_DSA_TAG_KSZ9477 [DSA_TAG_PROTO_KSZ9477] = &ksz9477_netdev_ops, + [DSA_TAG_PROTO_KSZ9893] = &ksz9893_netdev_ops, #endif #ifdef CONFIG_NET_DSA_TAG_LAN9303 [DSA_TAG_PROTO_LAN9303] = &lan9303_netdev_ops, @@ -93,6 +94,7 @@ const char *dsa_tag_protocol_to_str(const struct dsa_device_ops *ops) #endif #ifdef CONFIG_NET_DSA_TAG_KSZ9477 [DSA_TAG_PROTO_KSZ9477] = "ksz9477", + [DSA_TAG_PROTO_KSZ9893] = "ksz9893", #endif #ifdef CONFIG_NET_DSA_TAG_LAN9303 [DSA_TAG_PROTO_LAN9303] = "lan9303", diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c index a1917025e155..c00ee464afc7 100644 --- a/net/dsa/dsa2.c +++ b/net/dsa/dsa2.c @@ -612,8 +612,8 @@ static int dsa_switch_parse_ports_of(struct dsa_switch *ds, { struct device_node *ports, *port; struct dsa_port *dp; + int err = 0; u32 reg; - int err; ports = of_get_child_by_name(dn, "ports"); if (!ports) { @@ -624,19 +624,23 @@ static int dsa_switch_parse_ports_of(struct dsa_switch *ds, for_each_available_child_of_node(ports, port) { err = of_property_read_u32(port, "reg", ®); if (err) - return err; + goto out_put_node; - if (reg >= ds->num_ports) - return -EINVAL; + if (reg >= ds->num_ports) { + err = -EINVAL; + goto out_put_node; + } dp = &ds->ports[reg]; err = dsa_port_parse_of(dp, port); if (err) - return err; + goto out_put_node; } - return 0; +out_put_node: + of_node_put(ports); + return err; } static int dsa_switch_parse_member_of(struct dsa_switch *ds, @@ -767,11 +771,10 @@ static int dsa_switch_probe(struct dsa_switch *ds) struct dsa_switch *dsa_switch_alloc(struct device *dev, size_t n) { - size_t size = sizeof(struct dsa_switch) + n * sizeof(struct dsa_port); struct dsa_switch *ds; int i; - ds = devm_kzalloc(dev, size, GFP_KERNEL); + ds = devm_kzalloc(dev, struct_size(ds, ports, n), GFP_KERNEL); if (!ds) return NULL; diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h index 026a05774bf7..093b7d145eb1 100644 --- a/net/dsa/dsa_priv.h +++ b/net/dsa/dsa_priv.h @@ -103,7 +103,8 @@ static inline 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); + u16 flags, + struct netlink_ext_ack *extack); int dsa_legacy_fdb_del(struct ndmsg *ndm, struct nlattr *tb[], struct net_device *dev, const unsigned char *addr, u16 vid); @@ -142,7 +143,7 @@ static inline struct net_device *dsa_master_find_slave(struct net_device *dev, int dsa_port_set_state(struct dsa_port *dp, u8 state, struct switchdev_trans *trans); int dsa_port_enable(struct dsa_port *dp, struct phy_device *phy); -void dsa_port_disable(struct dsa_port *dp, struct phy_device *phy); +void dsa_port_disable(struct dsa_port *dp); int dsa_port_bridge_join(struct dsa_port *dp, struct net_device *br); void dsa_port_bridge_leave(struct dsa_port *dp, struct net_device *br); int dsa_port_vlan_filtering(struct dsa_port *dp, bool vlan_filtering, @@ -159,6 +160,10 @@ int dsa_port_mdb_add(const struct dsa_port *dp, struct switchdev_trans *trans); int dsa_port_mdb_del(const struct dsa_port *dp, const struct switchdev_obj_port_mdb *mdb); +int dsa_port_pre_bridge_flags(const struct dsa_port *dp, unsigned long flags, + struct switchdev_trans *trans); +int dsa_port_bridge_flags(const struct dsa_port *dp, unsigned long flags, + struct switchdev_trans *trans); int dsa_port_vlan_add(struct dsa_port *dp, const struct switchdev_obj_port_vlan *vlan, struct switchdev_trans *trans); @@ -211,6 +216,7 @@ extern const struct dsa_device_ops gswip_netdev_ops; /* tag_ksz.c */ extern const struct dsa_device_ops ksz9477_netdev_ops; +extern const struct dsa_device_ops ksz9893_netdev_ops; /* tag_lan9303.c */ extern const struct dsa_device_ops lan9303_netdev_ops; diff --git a/net/dsa/master.c b/net/dsa/master.c index 71bb15f491c8..c58f33931be1 100644 --- a/net/dsa/master.c +++ b/net/dsa/master.c @@ -126,6 +126,17 @@ static void dsa_master_get_strings(struct net_device *dev, uint32_t stringset, } } +static int dsa_master_get_phys_port_name(struct net_device *dev, + char *name, size_t len) +{ + struct dsa_port *cpu_dp = dev->dsa_ptr; + + if (snprintf(name, len, "p%d", cpu_dp->index) >= len) + return -EINVAL; + + return 0; +} + static int dsa_master_ethtool_setup(struct net_device *dev) { struct dsa_port *cpu_dp = dev->dsa_ptr; @@ -158,6 +169,38 @@ static void dsa_master_ethtool_teardown(struct net_device *dev) cpu_dp->orig_ethtool_ops = NULL; } +static int dsa_master_ndo_setup(struct net_device *dev) +{ + struct dsa_port *cpu_dp = dev->dsa_ptr; + struct dsa_switch *ds = cpu_dp->ds; + struct net_device_ops *ops; + + if (dev->netdev_ops->ndo_get_phys_port_name) + return 0; + + ops = devm_kzalloc(ds->dev, sizeof(*ops), GFP_KERNEL); + if (!ops) + return -ENOMEM; + + cpu_dp->orig_ndo_ops = dev->netdev_ops; + if (cpu_dp->orig_ndo_ops) + memcpy(ops, cpu_dp->orig_ndo_ops, sizeof(*ops)); + + ops->ndo_get_phys_port_name = dsa_master_get_phys_port_name; + + dev->netdev_ops = ops; + + return 0; +} + +static void dsa_master_ndo_teardown(struct net_device *dev) +{ + struct dsa_port *cpu_dp = dev->dsa_ptr; + + dev->netdev_ops = cpu_dp->orig_ndo_ops; + cpu_dp->orig_ndo_ops = NULL; +} + static ssize_t tagging_show(struct device *d, struct device_attribute *attr, char *buf) { @@ -205,6 +248,8 @@ static void dsa_master_reset_mtu(struct net_device *dev) rtnl_unlock(); } +static struct lock_class_key dsa_master_addr_list_lock_key; + int dsa_master_setup(struct net_device *dev, struct dsa_port *cpu_dp) { int ret; @@ -218,21 +263,34 @@ int dsa_master_setup(struct net_device *dev, struct dsa_port *cpu_dp) wmb(); dev->dsa_ptr = cpu_dp; + lockdep_set_class(&dev->addr_list_lock, + &dsa_master_addr_list_lock_key); ret = dsa_master_ethtool_setup(dev); if (ret) return ret; + ret = dsa_master_ndo_setup(dev); + if (ret) + goto out_err_ethtool_teardown; + ret = sysfs_create_group(&dev->dev.kobj, &dsa_group); if (ret) - dsa_master_ethtool_teardown(dev); + goto out_err_ndo_teardown; + + return ret; +out_err_ndo_teardown: + dsa_master_ndo_teardown(dev); +out_err_ethtool_teardown: + dsa_master_ethtool_teardown(dev); return ret; } void dsa_master_teardown(struct net_device *dev) { sysfs_remove_group(&dev->dev.kobj, &dsa_group); + dsa_master_ndo_teardown(dev); dsa_master_ethtool_teardown(dev); dsa_master_reset_mtu(dev); diff --git a/net/dsa/port.c b/net/dsa/port.c index 2d7e01b23572..caeef4c99dc0 100644 --- a/net/dsa/port.c +++ b/net/dsa/port.c @@ -69,7 +69,6 @@ static void dsa_port_set_state_now(struct dsa_port *dp, u8 state) int dsa_port_enable(struct dsa_port *dp, struct phy_device *phy) { - u8 stp_state = dp->bridge_dev ? BR_STATE_BLOCKING : BR_STATE_FORWARDING; struct dsa_switch *ds = dp->ds; int port = dp->index; int err; @@ -80,20 +79,22 @@ int dsa_port_enable(struct dsa_port *dp, struct phy_device *phy) return err; } - dsa_port_set_state_now(dp, stp_state); + if (!dp->bridge_dev) + dsa_port_set_state_now(dp, BR_STATE_FORWARDING); return 0; } -void dsa_port_disable(struct dsa_port *dp, struct phy_device *phy) +void dsa_port_disable(struct dsa_port *dp) { struct dsa_switch *ds = dp->ds; int port = dp->index; - dsa_port_set_state_now(dp, BR_STATE_DISABLED); + if (!dp->bridge_dev) + dsa_port_set_state_now(dp, BR_STATE_DISABLED); if (ds->ops->port_disable) - ds->ops->port_disable(ds, port, phy); + ds->ops->port_disable(ds, port); } int dsa_port_bridge_join(struct dsa_port *dp, struct net_device *br) @@ -105,16 +106,23 @@ int dsa_port_bridge_join(struct dsa_port *dp, struct net_device *br) }; int err; - /* Here the port is already bridged. Reflect the current configuration - * so that drivers can program their chips accordingly. + /* Set the flooding mode before joining the port in the switch */ + err = dsa_port_bridge_flags(dp, BR_FLOOD | BR_MCAST_FLOOD, NULL); + if (err) + return err; + + /* Here the interface is already bridged. Reflect the current + * configuration so that drivers can program their chips accordingly. */ dp->bridge_dev = br; err = dsa_port_notify(dp, DSA_NOTIFIER_BRIDGE_JOIN, &info); /* The bridging is rolled back on error */ - if (err) + if (err) { + dsa_port_bridge_flags(dp, 0, NULL); dp->bridge_dev = NULL; + } return err; } @@ -137,6 +145,9 @@ void dsa_port_bridge_leave(struct dsa_port *dp, struct net_device *br) if (err) pr_err("DSA: failed to notify DSA_NOTIFIER_BRIDGE_LEAVE\n"); + /* Port is leaving the bridge, disable flooding */ + dsa_port_bridge_flags(dp, 0, NULL); + /* Port left the bridge, put in BR_STATE_DISABLED by the bridge layer, * so allow it to be in BR_STATE_FORWARDING to be kept functional */ @@ -177,6 +188,35 @@ 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_pre_bridge_flags(const struct dsa_port *dp, unsigned long flags, + struct switchdev_trans *trans) +{ + struct dsa_switch *ds = dp->ds; + + if (!ds->ops->port_egress_floods || + (flags & ~(BR_FLOOD | BR_MCAST_FLOOD))) + return -EINVAL; + + return 0; +} + +int dsa_port_bridge_flags(const struct dsa_port *dp, unsigned long flags, + struct switchdev_trans *trans) +{ + struct dsa_switch *ds = dp->ds; + int port = dp->index; + int err = 0; + + if (switchdev_trans_ph_prepare(trans)) + return 0; + + if (ds->ops->port_egress_floods) + err = ds->ops->port_egress_floods(ds, port, flags & BR_FLOOD, + flags & BR_MCAST_FLOOD); + + return err; +} + int dsa_port_fdb_add(struct dsa_port *dp, const unsigned char *addr, u16 vid) { @@ -252,7 +292,10 @@ int dsa_port_vlan_add(struct dsa_port *dp, .vlan = vlan, }; - if (br_vlan_enabled(dp->bridge_dev)) + /* Can be called from dsa_slave_port_obj_add() or + * dsa_slave_vlan_rx_add_vid() + */ + if (!dp->bridge_dev || br_vlan_enabled(dp->bridge_dev)) return dsa_port_notify(dp, DSA_NOTIFIER_VLAN_ADD, &info); return 0; @@ -267,10 +310,13 @@ int dsa_port_vlan_del(struct dsa_port *dp, .vlan = vlan, }; - if (netif_is_bridge_master(vlan->obj.orig_dev)) + if (vlan->obj.orig_dev && netif_is_bridge_master(vlan->obj.orig_dev)) return -EOPNOTSUPP; - if (br_vlan_enabled(dp->bridge_dev)) + /* Can be called from dsa_slave_port_obj_del() or + * dsa_slave_vlan_rx_kill_vid() + */ + if (!dp->bridge_dev || br_vlan_enabled(dp->bridge_dev)) return dsa_port_notify(dp, DSA_NOTIFIER_VLAN_DEL, &info); return 0; @@ -291,6 +337,7 @@ static struct phy_device *dsa_port_get_phy_device(struct dsa_port *dp) return ERR_PTR(-EPROBE_DEFER); } + of_node_put(phy_dn); return phydev; } diff --git a/net/dsa/slave.c b/net/dsa/slave.c index a3fcc1d01615..093eef6f2599 100644 --- a/net/dsa/slave.c +++ b/net/dsa/slave.c @@ -122,7 +122,7 @@ static int dsa_slave_close(struct net_device *dev) phylink_stop(dp->pl); - dsa_port_disable(dp, dev->phydev); + dsa_port_disable(dp); dev_mc_unsync(master, dev); dev_uc_unsync(master, dev); @@ -140,11 +140,14 @@ static int dsa_slave_close(struct net_device *dev) static void dsa_slave_change_rx_flags(struct net_device *dev, int change) { struct net_device *master = dsa_slave_to_master(dev); - - if (change & IFF_ALLMULTI) - dev_set_allmulti(master, dev->flags & IFF_ALLMULTI ? 1 : -1); - if (change & IFF_PROMISC) - dev_set_promiscuity(master, dev->flags & IFF_PROMISC ? 1 : -1); + if (dev->flags & IFF_UP) { + if (change & IFF_ALLMULTI) + dev_set_allmulti(master, + dev->flags & IFF_ALLMULTI ? 1 : -1); + if (change & IFF_PROMISC) + dev_set_promiscuity(master, + dev->flags & IFF_PROMISC ? 1 : -1); + } } static void dsa_slave_set_rx_mode(struct net_device *dev) @@ -292,6 +295,13 @@ static int dsa_slave_port_attr_set(struct net_device *dev, case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME: ret = dsa_port_ageing_time(dp, attr->u.ageing_time, trans); break; + case SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS: + ret = dsa_port_pre_bridge_flags(dp, attr->u.brport_flags, + trans); + break; + case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS: + ret = dsa_port_bridge_flags(dp, attr->u.brport_flags, trans); + break; default: ret = -EOPNOTSUPP; break; @@ -362,24 +372,15 @@ static int dsa_slave_port_obj_del(struct net_device *dev, return err; } -static int dsa_slave_port_attr_get(struct net_device *dev, - struct switchdev_attr *attr) +static int dsa_slave_get_port_parent_id(struct net_device *dev, + struct netdev_phys_item_id *ppid) { struct dsa_port *dp = dsa_slave_to_port(dev); struct dsa_switch *ds = dp->ds; struct dsa_switch_tree *dst = ds->dst; - switch (attr->id) { - case SWITCHDEV_ATTR_ID_PORT_PARENT_ID: - attr->u.ppid.id_len = sizeof(dst->index); - memcpy(&attr->u.ppid.id, &dst->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; - } + ppid->id_len = sizeof(dst->index); + memcpy(&ppid->id, &dst->index, ppid->id_len); return 0; } @@ -639,7 +640,7 @@ static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e) int ret; /* Port's PHY and MAC both need to be EEE capable */ - if (!dev->phydev && !dp->pl) + if (!dev->phydev || !dp->pl) return -ENODEV; if (!ds->ops->set_mac_eee) @@ -659,7 +660,7 @@ static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e) int ret; /* Port's PHY and MAC both need to be EEE capable */ - if (!dev->phydev && !dp->pl) + if (!dev->phydev || !dp->pl) return -ENODEV; if (!ds->ops->get_mac_eee) @@ -982,6 +983,75 @@ static int dsa_slave_get_ts_info(struct net_device *dev, return ds->ops->get_ts_info(ds, p->dp->index, ts); } +static int dsa_slave_vlan_rx_add_vid(struct net_device *dev, __be16 proto, + u16 vid) +{ + struct dsa_port *dp = dsa_slave_to_port(dev); + struct switchdev_obj_port_vlan vlan = { + .vid_begin = vid, + .vid_end = vid, + /* This API only allows programming tagged, non-PVID VIDs */ + .flags = 0, + }; + struct switchdev_trans trans; + struct bridge_vlan_info info; + int ret; + + /* Check for a possible bridge VLAN entry now since there is no + * need to emulate the switchdev prepare + commit phase. + */ + if (dp->bridge_dev) { + /* br_vlan_get_info() returns -EINVAL or -ENOENT if the + * device, respectively the VID is not found, returning + * 0 means success, which is a failure for us here. + */ + ret = br_vlan_get_info(dp->bridge_dev, vid, &info); + if (ret == 0) + return -EBUSY; + } + + trans.ph_prepare = true; + ret = dsa_port_vlan_add(dp, &vlan, &trans); + if (ret == -EOPNOTSUPP) + return 0; + + trans.ph_prepare = false; + return dsa_port_vlan_add(dp, &vlan, &trans); +} + +static int dsa_slave_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, + u16 vid) +{ + struct dsa_port *dp = dsa_slave_to_port(dev); + struct switchdev_obj_port_vlan vlan = { + .vid_begin = vid, + .vid_end = vid, + /* This API only allows programming tagged, non-PVID VIDs */ + .flags = 0, + }; + struct bridge_vlan_info info; + int ret; + + /* Check for a possible bridge VLAN entry now since there is no + * need to emulate the switchdev prepare + commit phase. + */ + if (dp->bridge_dev) { + /* br_vlan_get_info() returns -EINVAL or -ENOENT if the + * device, respectively the VID is not found, returning + * 0 means success, which is a failure for us here. + */ + ret = br_vlan_get_info(dp->bridge_dev, vid, &info); + if (ret == 0) + return -EBUSY; + } + + ret = dsa_port_vlan_del(dp, &vlan); + if (ret == -EOPNOTSUPP) + ret = 0; + + return ret; +} + static const struct ethtool_ops dsa_slave_ethtool_ops = { .get_drvinfo = dsa_slave_get_drvinfo, .get_regs_len = dsa_slave_get_regs_len, @@ -1009,7 +1079,8 @@ static const struct ethtool_ops dsa_slave_ethtool_ops = { int dsa_legacy_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], struct net_device *dev, const unsigned char *addr, u16 vid, - u16 flags) + u16 flags, + struct netlink_ext_ack *extack) { struct dsa_port *dp = dsa_slave_to_port(dev); @@ -1045,11 +1116,9 @@ static const struct net_device_ops dsa_slave_netdev_ops = { .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 = { - .switchdev_port_attr_get = dsa_slave_port_attr_get, - .switchdev_port_attr_set = dsa_slave_port_attr_set, + .ndo_get_port_parent_id = dsa_slave_get_port_parent_id, + .ndo_vlan_rx_add_vid = dsa_slave_vlan_rx_add_vid, + .ndo_vlan_rx_kill_vid = dsa_slave_vlan_rx_kill_vid, }; static struct device_type dsa_type = { @@ -1305,13 +1374,13 @@ int dsa_slave_create(struct dsa_port *port) if (slave_dev == NULL) return -ENOMEM; - slave_dev->features = master->vlan_features | NETIF_F_HW_TC; + slave_dev->features = master->vlan_features | NETIF_F_HW_TC | + NETIF_F_HW_VLAN_CTAG_FILTER; slave_dev->hw_features |= NETIF_F_HW_TC; slave_dev->ethtool_ops = &dsa_slave_ethtool_ops; eth_hw_addr_inherit(slave_dev, master); slave_dev->priv_flags |= IFF_NO_QUEUE; slave_dev->netdev_ops = &dsa_slave_netdev_ops; - slave_dev->switchdev_ops = &dsa_slave_switchdev_ops; slave_dev->min_mtu = 0; slave_dev->max_mtu = ETH_MAX_MTU; SET_NETDEV_DEVTYPE(slave_dev, &dsa_type); @@ -1406,20 +1475,66 @@ static int dsa_slave_changeupper(struct net_device *dev, return err; } +static int dsa_slave_upper_vlan_check(struct net_device *dev, + struct netdev_notifier_changeupper_info * + info) +{ + struct netlink_ext_ack *ext_ack; + struct net_device *slave; + struct dsa_port *dp; + + ext_ack = netdev_notifier_info_to_extack(&info->info); + + if (!is_vlan_dev(dev)) + return NOTIFY_DONE; + + slave = vlan_dev_real_dev(dev); + if (!dsa_slave_dev_check(slave)) + return NOTIFY_DONE; + + dp = dsa_slave_to_port(slave); + if (!dp->bridge_dev) + return NOTIFY_DONE; + + /* Deny enslaving a VLAN device into a VLAN-aware bridge */ + if (br_vlan_enabled(dp->bridge_dev) && + netif_is_bridge_master(info->upper_dev) && info->linking) { + NL_SET_ERR_MSG_MOD(ext_ack, + "Cannot enslave VLAN device into VLAN aware bridge"); + return notifier_from_errno(-EINVAL); + } + + return NOTIFY_DONE; +} + static int dsa_slave_netdevice_event(struct notifier_block *nb, unsigned long event, void *ptr) { struct net_device *dev = netdev_notifier_info_to_dev(ptr); - if (!dsa_slave_dev_check(dev)) - return NOTIFY_DONE; + if (event == NETDEV_CHANGEUPPER) { + if (!dsa_slave_dev_check(dev)) + return dsa_slave_upper_vlan_check(dev, ptr); - if (event == NETDEV_CHANGEUPPER) return dsa_slave_changeupper(dev, ptr); + } return NOTIFY_DONE; } +static int +dsa_slave_switchdev_port_attr_set_event(struct net_device *netdev, + struct switchdev_notifier_port_attr_info *port_attr_info) +{ + int err; + + err = dsa_slave_port_attr_set(netdev, port_attr_info->attr, + port_attr_info->trans); + + port_attr_info->handled = true; + return notifier_from_errno(err); +} + struct dsa_switchdev_event_work { struct work_struct work; struct switchdev_notifier_fdb_info fdb_info; @@ -1450,7 +1565,7 @@ static void dsa_slave_switchdev_event_work(struct work_struct *work) } fdb_info->offloaded = true; call_switchdev_notifiers(SWITCHDEV_FDB_OFFLOADED, dev, - &fdb_info->info); + &fdb_info->info, NULL); break; case SWITCHDEV_FDB_DEL_TO_DEVICE: @@ -1498,6 +1613,9 @@ static int dsa_slave_switchdev_event(struct notifier_block *unused, if (!dsa_slave_dev_check(dev)) return NOTIFY_DONE; + if (event == SWITCHDEV_PORT_ATTR_SET) + return dsa_slave_switchdev_port_attr_set_event(dev, ptr); + switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC); if (!switchdev_work) return NOTIFY_BAD; @@ -1560,6 +1678,8 @@ static int dsa_slave_switchdev_blocking_event(struct notifier_block *unused, case SWITCHDEV_PORT_OBJ_ADD: /* fall through */ case SWITCHDEV_PORT_OBJ_DEL: return dsa_slave_switchdev_port_obj_event(event, dev, ptr); + case SWITCHDEV_PORT_ATTR_SET: + return dsa_slave_switchdev_port_attr_set_event(dev, ptr); } return NOTIFY_DONE; diff --git a/net/dsa/switch.c b/net/dsa/switch.c index 142b294d3446..e1fae969aa73 100644 --- a/net/dsa/switch.c +++ b/net/dsa/switch.c @@ -12,6 +12,7 @@ #include <linux/netdevice.h> #include <linux/notifier.h> +#include <linux/if_vlan.h> #include <net/switchdev.h> #include "dsa_priv.h" @@ -168,6 +169,43 @@ static int dsa_switch_mdb_del(struct dsa_switch *ds, return 0; } +static int dsa_port_vlan_device_check(struct net_device *vlan_dev, + int vlan_dev_vid, + void *arg) +{ + struct switchdev_obj_port_vlan *vlan = arg; + u16 vid; + + for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) { + if (vid == vlan_dev_vid) + return -EBUSY; + } + + return 0; +} + +static int dsa_port_vlan_check(struct dsa_switch *ds, int port, + const struct switchdev_obj_port_vlan *vlan) +{ + const struct dsa_port *dp = dsa_to_port(ds, port); + int err = 0; + + /* Device is not bridged, let it proceed with the VLAN device + * creation. + */ + if (!dp->bridge_dev) + return err; + + /* dsa_slave_vlan_rx_{add,kill}_vid() cannot use the prepare pharse and + * already checks whether there is an overlapping bridge VLAN entry + * with the same VID, so here we only need to check that if we are + * adding a bridge VLAN entry there is not an overlapping VLAN device + * claiming that VID. + */ + return vlan_for_each(dp->slave, dsa_port_vlan_device_check, + (void *)vlan); +} + static int dsa_switch_vlan_prepare_bitmap(struct dsa_switch *ds, const struct switchdev_obj_port_vlan *vlan, @@ -179,6 +217,10 @@ dsa_switch_vlan_prepare_bitmap(struct dsa_switch *ds, return -EOPNOTSUPP; for_each_set_bit(port, bitmap, ds->num_ports) { + err = dsa_port_vlan_check(ds, port, vlan); + if (err) + return err; + err = ds->ops->port_vlan_prepare(ds, port, vlan); if (err) return err; diff --git a/net/dsa/tag_dsa.c b/net/dsa/tag_dsa.c index 8b2f92e3f3a2..67ff3fae18d8 100644 --- a/net/dsa/tag_dsa.c +++ b/net/dsa/tag_dsa.c @@ -146,8 +146,17 @@ static struct sk_buff *dsa_rcv(struct sk_buff *skb, struct net_device *dev, return skb; } +static int dsa_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 dsa_netdev_ops = { .xmit = dsa_xmit, .rcv = dsa_rcv, + .flow_dissect = dsa_tag_flow_dissect, .overhead = DSA_HLEN, }; diff --git a/net/dsa/tag_edsa.c b/net/dsa/tag_edsa.c index f5b87ee5c94e..234585ec116e 100644 --- a/net/dsa/tag_edsa.c +++ b/net/dsa/tag_edsa.c @@ -165,8 +165,17 @@ static struct sk_buff *edsa_rcv(struct sk_buff *skb, struct net_device *dev, return skb; } +static int edsa_tag_flow_dissect(const struct sk_buff *skb, __be16 *proto, + int *offset) +{ + *offset = 8; + *proto = ((__be16 *)skb->data)[3]; + return 0; +} + const struct dsa_device_ops edsa_netdev_ops = { .xmit = edsa_xmit, .rcv = edsa_rcv, + .flow_dissect = edsa_tag_flow_dissect, .overhead = EDSA_HLEN, }; diff --git a/net/dsa/tag_ksz.c b/net/dsa/tag_ksz.c index da71b9e2af52..de246c93d3bb 100644 --- a/net/dsa/tag_ksz.c +++ b/net/dsa/tag_ksz.c @@ -16,6 +16,7 @@ /* Typically only one byte is used for tail tag. */ #define KSZ_EGRESS_TAG_LEN 1 +#define KSZ_INGRESS_TAG_LEN 1 static struct sk_buff *ksz_common_xmit(struct sk_buff *skb, struct net_device *dev, int len) @@ -67,6 +68,8 @@ static struct sk_buff *ksz_common_rcv(struct sk_buff *skb, pskb_trim_rcsum(skb, skb->len - len); + skb->offload_fwd_mark = true; + return skb; } @@ -139,3 +142,36 @@ const struct dsa_device_ops ksz9477_netdev_ops = { .rcv = ksz9477_rcv, .overhead = KSZ9477_INGRESS_TAG_LEN, }; + +#define KSZ9893_TAIL_TAG_OVERRIDE BIT(5) +#define KSZ9893_TAIL_TAG_LOOKUP BIT(6) + +static struct sk_buff *ksz9893_xmit(struct sk_buff *skb, + struct net_device *dev) +{ + struct dsa_port *dp = dsa_slave_to_port(dev); + struct sk_buff *nskb; + u8 *addr; + u8 *tag; + + nskb = ksz_common_xmit(skb, dev, KSZ_INGRESS_TAG_LEN); + if (!nskb) + return NULL; + + /* Tag encoding */ + tag = skb_put(nskb, KSZ_INGRESS_TAG_LEN); + addr = skb_mac_header(nskb); + + *tag = BIT(dp->index); + + if (is_link_local_ether_addr(addr)) + *tag |= KSZ9893_TAIL_TAG_OVERRIDE; + + return nskb; +} + +const struct dsa_device_ops ksz9893_netdev_ops = { + .xmit = ksz9893_xmit, + .rcv = ksz9477_rcv, + .overhead = KSZ_INGRESS_TAG_LEN, +}; |