diff options
Diffstat (limited to 'drivers/net/ethernet/microchip/sparx5')
4 files changed, 210 insertions, 87 deletions
diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_main.c b/drivers/net/ethernet/microchip/sparx5/sparx5_main.c index 01be7bd84181..bbe41734360e 100644 --- a/drivers/net/ethernet/microchip/sparx5/sparx5_main.c +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_main.c @@ -277,6 +277,7 @@ static int sparx5_create_port(struct sparx5 *sparx5, spx5_port->custom_etype = 0x8880; /* Vitesse */ spx5_port->phylink_pcs.poll = true; spx5_port->phylink_pcs.ops = &sparx5_phylink_pcs_ops; + spx5_port->is_mrouter = false; sparx5->ports[config->portno] = spx5_port; err = sparx5_port_init(sparx5, spx5_port, &config->conf); @@ -661,6 +662,9 @@ static int sparx5_start(struct sparx5 *sparx5) queue_delayed_work(sparx5->mact_queue, &sparx5->mact_work, SPX5_MACT_PULL_DELAY); + mutex_init(&sparx5->mdb_lock); + INIT_LIST_HEAD(&sparx5->mdb_entries); + err = sparx5_register_netdevs(sparx5); if (err) return err; diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_main.h b/drivers/net/ethernet/microchip/sparx5/sparx5_main.h index b197129044b5..9b4395b7a9e4 100644 --- a/drivers/net/ethernet/microchip/sparx5/sparx5_main.h +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_main.h @@ -190,6 +190,7 @@ struct sparx5_port { u8 ptp_cmd; u16 ts_id; struct sk_buff_head tx_skbs; + bool is_mrouter; }; enum sparx5_core_clockfreq { @@ -215,6 +216,15 @@ struct sparx5_skb_cb { unsigned long jiffies; }; +struct sparx5_mdb_entry { + struct list_head list; + DECLARE_BITMAP(port_mask, SPX5_PORTS); + unsigned char addr[ETH_ALEN]; + bool cpu_copy; + u16 vid; + u16 pgid_idx; +}; + #define SPARX5_PTP_TIMEOUT msecs_to_jiffies(10) #define SPARX5_SKB_CB(skb) \ ((struct sparx5_skb_cb *)((skb)->cb)) @@ -256,6 +266,10 @@ struct sparx5 { struct list_head mact_entries; /* mac table list (mact_entries) mutex */ struct mutex mact_lock; + /* SW MDB table */ + struct list_head mdb_entries; + /* mdb list mutex */ + struct mutex mdb_lock; struct delayed_work mact_work; struct workqueue_struct *mact_queue; /* Board specifics */ @@ -325,6 +339,7 @@ void sparx5_mact_init(struct sparx5 *sparx5); /* sparx5_vlan.c */ void sparx5_pgid_update_mask(struct sparx5_port *port, int pgid, bool enable); +void sparx5_pgid_clear(struct sparx5 *spx5, int pgid); void sparx5_pgid_read_mask(struct sparx5 *sparx5, int pgid, u32 portmask[3]); void sparx5_update_fwd(struct sparx5 *sparx5); void sparx5_vlan_init(struct sparx5 *sparx5); diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_switchdev.c b/drivers/net/ethernet/microchip/sparx5/sparx5_switchdev.c index ec07f7d0528c..4af85d108a06 100644 --- a/drivers/net/ethernet/microchip/sparx5/sparx5_switchdev.c +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_switchdev.c @@ -29,14 +29,23 @@ static int sparx5_port_attr_pre_bridge_flags(struct sparx5_port *port, return 0; } +static void sparx5_port_update_mcast_ip_flood(struct sparx5_port *port, bool flood_flag) +{ + bool should_flood = flood_flag || port->is_mrouter; + int pgid; + + for (pgid = PGID_IPV4_MC_DATA; pgid <= PGID_IPV6_MC_CTRL; pgid++) + sparx5_pgid_update_mask(port, pgid, should_flood); +} + static void sparx5_port_attr_bridge_flags(struct sparx5_port *port, struct switchdev_brport_flags flags) { - int pgid; + if (flags.mask & BR_MCAST_FLOOD) { + sparx5_pgid_update_mask(port, PGID_MC_FLOOD, !!(flags.val & BR_MCAST_FLOOD)); + sparx5_port_update_mcast_ip_flood(port, !!(flags.val & BR_MCAST_FLOOD)); + } - if (flags.mask & BR_MCAST_FLOOD) - for (pgid = PGID_MC_FLOOD; pgid <= PGID_IPV6_MC_CTRL; pgid++) - sparx5_pgid_update_mask(port, pgid, !!(flags.val & BR_MCAST_FLOOD)); if (flags.mask & BR_FLOOD) sparx5_pgid_update_mask(port, PGID_UC_FLOOD, !!(flags.val & BR_FLOOD)); if (flags.mask & BR_BCAST_FLOOD) @@ -82,6 +91,37 @@ static void sparx5_port_attr_ageing_set(struct sparx5_port *port, sparx5_set_ageing(port->sparx5, ageing_time); } +static void sparx5_port_attr_mrouter_set(struct sparx5_port *port, + struct net_device *orig_dev, + bool enable) +{ + struct sparx5 *sparx5 = port->sparx5; + struct sparx5_mdb_entry *e; + bool flood_flag; + + if ((enable && port->is_mrouter) || (!enable && !port->is_mrouter)) + return; + + /* Add/del mrouter port on all active mdb entries in HW. + * Don't change entry port mask, since that represents + * ports that actually joined that group. + */ + mutex_lock(&sparx5->mdb_lock); + list_for_each_entry(e, &sparx5->mdb_entries, list) { + if (!test_bit(port->portno, e->port_mask) && + ether_addr_is_ip_mcast(e->addr)) + sparx5_pgid_update_mask(port, e->pgid_idx, enable); + } + mutex_unlock(&sparx5->mdb_lock); + + /* Enable/disable flooding depending on if port is mrouter port + * or if mcast flood is enabled. + */ + port->is_mrouter = enable; + flood_flag = br_port_flag_is_set(port->ndev, BR_MCAST_FLOOD); + sparx5_port_update_mcast_ip_flood(port, flood_flag); +} + static int sparx5_port_attr_set(struct net_device *dev, const void *ctx, const struct switchdev_attr *attr, struct netlink_ext_ack *extack) @@ -110,6 +150,11 @@ static int sparx5_port_attr_set(struct net_device *dev, const void *ctx, port->vlan_aware = attr->u.vlan_filtering; sparx5_vlan_port_apply(port->sparx5, port); break; + case SWITCHDEV_ATTR_ID_PORT_MROUTER: + sparx5_port_attr_mrouter_set(port, + attr->orig_dev, + attr->u.mrouter); + break; default: return -EOPNOTSUPP; } @@ -386,16 +431,95 @@ static int sparx5_handle_port_vlan_add(struct net_device *dev, v->flags & BRIDGE_VLAN_INFO_UNTAGGED); } +static int sparx5_alloc_mdb_entry(struct sparx5 *sparx5, + const unsigned char *addr, + u16 vid, + struct sparx5_mdb_entry **entry_out) +{ + struct sparx5_mdb_entry *entry; + u16 pgid_idx; + int err; + + entry = kzalloc(sizeof(*entry), GFP_KERNEL); + if (!entry) + return -ENOMEM; + + err = sparx5_pgid_alloc_mcast(sparx5, &pgid_idx); + if (err) { + kfree(entry); + return err; + } + + memcpy(entry->addr, addr, ETH_ALEN); + entry->vid = vid; + entry->pgid_idx = pgid_idx; + + mutex_lock(&sparx5->mdb_lock); + list_add_tail(&entry->list, &sparx5->mdb_entries); + mutex_unlock(&sparx5->mdb_lock); + + *entry_out = entry; + return 0; +} + +static void sparx5_free_mdb_entry(struct sparx5 *sparx5, + const unsigned char *addr, + u16 vid) +{ + struct sparx5_mdb_entry *entry, *tmp; + + mutex_lock(&sparx5->mdb_lock); + list_for_each_entry_safe(entry, tmp, &sparx5->mdb_entries, list) { + if ((vid == 0 || entry->vid == vid) && + ether_addr_equal(addr, entry->addr)) { + list_del(&entry->list); + + sparx5_pgid_free(sparx5, entry->pgid_idx); + kfree(entry); + goto out; + } + } + +out: + mutex_unlock(&sparx5->mdb_lock); +} + +static struct sparx5_mdb_entry *sparx5_mdb_get_entry(struct sparx5 *sparx5, + const unsigned char *addr, + u16 vid) +{ + struct sparx5_mdb_entry *e, *found = NULL; + + mutex_lock(&sparx5->mdb_lock); + list_for_each_entry(e, &sparx5->mdb_entries, list) { + if (ether_addr_equal(e->addr, addr) && e->vid == vid) { + found = e; + goto out; + } + } + +out: + mutex_unlock(&sparx5->mdb_lock); + return found; +} + +static void sparx5_cpu_copy_ena(struct sparx5 *spx5, u16 pgid, bool enable) +{ + spx5_rmw(ANA_AC_PGID_MISC_CFG_PGID_CPU_COPY_ENA_SET(enable), + ANA_AC_PGID_MISC_CFG_PGID_CPU_COPY_ENA, spx5, + ANA_AC_PGID_MISC_CFG(pgid)); +} + static int sparx5_handle_port_mdb_add(struct net_device *dev, struct notifier_block *nb, const struct switchdev_obj_port_mdb *v) { struct sparx5_port *port = netdev_priv(dev); struct sparx5 *spx5 = port->sparx5; - u16 pgid_idx, vid; - u32 mact_entry; - bool is_host; - int res, err; + struct sparx5_mdb_entry *entry; + bool is_host, is_new; + int err, i; + u16 vid; if (!sparx5_netdevice_check(dev)) return -EOPNOTSUPP; @@ -410,66 +534,36 @@ static int sparx5_handle_port_mdb_add(struct net_device *dev, else vid = v->vid; - res = sparx5_mact_find(spx5, v->addr, vid, &mact_entry); - - if (res == 0) { - pgid_idx = LRN_MAC_ACCESS_CFG_2_MAC_ENTRY_ADDR_GET(mact_entry); - - /* MC_IDX starts after the port masks in the PGID table */ - pgid_idx += SPX5_PORTS; - - if (is_host) - spx5_rmw(ANA_AC_PGID_MISC_CFG_PGID_CPU_COPY_ENA_SET(1), - ANA_AC_PGID_MISC_CFG_PGID_CPU_COPY_ENA, spx5, - ANA_AC_PGID_MISC_CFG(pgid_idx)); - else - sparx5_pgid_update_mask(port, pgid_idx, true); - - } else { - err = sparx5_pgid_alloc_mcast(spx5, &pgid_idx); - if (err) { - netdev_warn(dev, "multicast pgid table full\n"); + is_new = false; + entry = sparx5_mdb_get_entry(spx5, v->addr, vid); + if (!entry) { + err = sparx5_alloc_mdb_entry(spx5, v->addr, vid, &entry); + is_new = true; + if (err) return err; - } - - if (is_host) - spx5_rmw(ANA_AC_PGID_MISC_CFG_PGID_CPU_COPY_ENA_SET(1), - ANA_AC_PGID_MISC_CFG_PGID_CPU_COPY_ENA, spx5, - ANA_AC_PGID_MISC_CFG(pgid_idx)); - else - sparx5_pgid_update_mask(port, pgid_idx, true); - - err = sparx5_mact_learn(spx5, pgid_idx, v->addr, vid); - - if (err) { - netdev_warn(dev, "could not learn mac address %pM\n", v->addr); - sparx5_pgid_free(spx5, pgid_idx); - sparx5_pgid_update_mask(port, pgid_idx, false); - return err; - } } - return 0; -} + mutex_lock(&spx5->mdb_lock); + + /* Add any mrouter ports to the new entry */ + if (is_new && ether_addr_is_ip_mcast(v->addr)) + for (i = 0; i < SPX5_PORTS; i++) + if (spx5->ports[i] && spx5->ports[i]->is_mrouter) + sparx5_pgid_update_mask(spx5->ports[i], + entry->pgid_idx, + true); + + if (is_host && !entry->cpu_copy) { + sparx5_cpu_copy_ena(spx5, entry->pgid_idx, true); + entry->cpu_copy = true; + } else if (!is_host) { + sparx5_pgid_update_mask(port, entry->pgid_idx, true); + set_bit(port->portno, entry->port_mask); + } + mutex_unlock(&spx5->mdb_lock); -static int sparx5_mdb_del_entry(struct net_device *dev, - struct sparx5 *spx5, - const unsigned char mac[ETH_ALEN], - const u16 vid, - u16 pgid_idx) -{ - int err; + sparx5_mact_learn(spx5, entry->pgid_idx, entry->addr, entry->vid); - err = sparx5_mact_forget(spx5, mac, vid); - if (err) { - netdev_warn(dev, "could not forget mac address %pM", mac); - return err; - } - err = sparx5_pgid_free(spx5, pgid_idx); - if (err) { - netdev_err(dev, "attempted to free already freed pgid\n"); - return err; - } return 0; } @@ -479,42 +573,45 @@ static int sparx5_handle_port_mdb_del(struct net_device *dev, { struct sparx5_port *port = netdev_priv(dev); struct sparx5 *spx5 = port->sparx5; - u16 pgid_idx, vid; - u32 mact_entry, res, pgid_entry[3], misc_cfg; - bool host_ena; + struct sparx5_mdb_entry *entry; + bool is_host; + u16 vid; if (!sparx5_netdevice_check(dev)) return -EOPNOTSUPP; + is_host = netif_is_bridge_master(v->obj.orig_dev); + if (!br_vlan_enabled(spx5->hw_bridge_dev)) vid = 1; else vid = v->vid; - res = sparx5_mact_find(spx5, v->addr, vid, &mact_entry); - - if (res == 0) { - pgid_idx = LRN_MAC_ACCESS_CFG_2_MAC_ENTRY_ADDR_GET(mact_entry); - - /* MC_IDX starts after the port masks in the PGID table */ - pgid_idx += SPX5_PORTS; - - if (netif_is_bridge_master(v->obj.orig_dev)) - spx5_rmw(ANA_AC_PGID_MISC_CFG_PGID_CPU_COPY_ENA_SET(0), - ANA_AC_PGID_MISC_CFG_PGID_CPU_COPY_ENA, spx5, - ANA_AC_PGID_MISC_CFG(pgid_idx)); - else - sparx5_pgid_update_mask(port, pgid_idx, false); + entry = sparx5_mdb_get_entry(spx5, v->addr, vid); + if (!entry) + return 0; - misc_cfg = spx5_rd(spx5, ANA_AC_PGID_MISC_CFG(pgid_idx)); - host_ena = ANA_AC_PGID_MISC_CFG_PGID_CPU_COPY_ENA_GET(misc_cfg); + mutex_lock(&spx5->mdb_lock); + if (is_host && entry->cpu_copy) { + sparx5_cpu_copy_ena(spx5, entry->pgid_idx, false); + entry->cpu_copy = false; + } else if (!is_host) { + clear_bit(port->portno, entry->port_mask); - sparx5_pgid_read_mask(spx5, pgid_idx, pgid_entry); - if (bitmap_empty((unsigned long *)pgid_entry, SPX5_PORTS) && !host_ena) - /* No ports or CPU are in MC group. Remove entry */ - return sparx5_mdb_del_entry(dev, spx5, v->addr, vid, pgid_idx); + /* Port not mrouter port or addr is L2 mcast, remove port from mask. */ + if (!port->is_mrouter || !ether_addr_is_ip_mcast(v->addr)) + sparx5_pgid_update_mask(port, entry->pgid_idx, false); + } + mutex_unlock(&spx5->mdb_lock); + + if (bitmap_empty(entry->port_mask, SPX5_PORTS) && !entry->cpu_copy) { + /* Clear pgid in case mrouter ports exists + * that are not part of the group. + */ + sparx5_pgid_clear(spx5, entry->pgid_idx); + sparx5_mact_forget(spx5, entry->addr, entry->vid); + sparx5_free_mdb_entry(spx5, entry->addr, entry->vid); } - return 0; } diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_vlan.c b/drivers/net/ethernet/microchip/sparx5/sparx5_vlan.c index 37e4ac965849..34f954bbf815 100644 --- a/drivers/net/ethernet/microchip/sparx5/sparx5_vlan.c +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_vlan.c @@ -138,6 +138,13 @@ void sparx5_pgid_update_mask(struct sparx5_port *port, int pgid, bool enable) } } +void sparx5_pgid_clear(struct sparx5 *spx5, int pgid) +{ + spx5_wr(0, spx5, ANA_AC_PGID_CFG(pgid)); + spx5_wr(0, spx5, ANA_AC_PGID_CFG1(pgid)); + spx5_wr(0, spx5, ANA_AC_PGID_CFG2(pgid)); +} + void sparx5_pgid_read_mask(struct sparx5 *spx5, int pgid, u32 portmask[3]) { portmask[0] = spx5_rd(spx5, ANA_AC_PGID_CFG(pgid)); |