diff options
Diffstat (limited to 'target/linux/generic/pending-5.10')
7 files changed, 360 insertions, 0 deletions
diff --git a/target/linux/generic/pending-5.10/762-net-bridge-switchdev-Refactor-br_switchdev_fdb_notif.patch b/target/linux/generic/pending-5.10/762-net-bridge-switchdev-Refactor-br_switchdev_fdb_notif.patch new file mode 100644 index 0000000000..081d002c7e --- /dev/null +++ b/target/linux/generic/pending-5.10/762-net-bridge-switchdev-Refactor-br_switchdev_fdb_notif.patch @@ -0,0 +1,75 @@ +From 46fe6cecb296d850c1ee2b333e57093ac4b733f3 Mon Sep 17 00:00:00 2001 +From: Tobias Waldekranz <tobias@waldekranz.com> +Date: Sat, 16 Jan 2021 02:25:09 +0100 +Subject: [PATCH] net: bridge: switchdev: Refactor br_switchdev_fdb_notify + +Instead of having to add more and more arguments to +br_switchdev_fdb_call_notifiers, get rid of it and build the info +struct directly in br_switchdev_fdb_notify. + +Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com> +Reviewed-by: Vladimir Oltean <olteanv@gmail.com> +--- + net/bridge/br_switchdev.c | 41 +++++++++++---------------------------- + 1 file changed, 11 insertions(+), 30 deletions(-) + +--- a/net/bridge/br_switchdev.c ++++ b/net/bridge/br_switchdev.c +@@ -102,46 +102,27 @@ int br_switchdev_set_port_flag(struct ne + return 0; + } + +-static void +-br_switchdev_fdb_call_notifiers(bool adding, const unsigned char *mac, +- u16 vid, struct net_device *dev, +- bool added_by_user, bool offloaded) +-{ +- struct switchdev_notifier_fdb_info info; +- unsigned long notifier_type; +- +- info.addr = mac; +- info.vid = vid; +- info.added_by_user = added_by_user; +- info.offloaded = offloaded; +- notifier_type = adding ? SWITCHDEV_FDB_ADD_TO_DEVICE : SWITCHDEV_FDB_DEL_TO_DEVICE; +- call_switchdev_notifiers(notifier_type, dev, &info.info, NULL); +-} +- + void + br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) + { ++ struct switchdev_notifier_fdb_info info = { ++ .addr = fdb->key.addr.addr, ++ .vid = fdb->key.vlan_id, ++ .added_by_user = test_bit(BR_FDB_ADDED_BY_USER, &fdb->flags), ++ .offloaded = test_bit(BR_FDB_OFFLOADED, &fdb->flags), ++ }; ++ + if (!fdb->dst) + return; + + switch (type) { + case RTM_DELNEIGH: +- br_switchdev_fdb_call_notifiers(false, fdb->key.addr.addr, +- fdb->key.vlan_id, +- fdb->dst->dev, +- test_bit(BR_FDB_ADDED_BY_USER, +- &fdb->flags), +- test_bit(BR_FDB_OFFLOADED, +- &fdb->flags)); ++ call_switchdev_notifiers(SWITCHDEV_FDB_DEL_TO_DEVICE, ++ fdb->dst->dev, &info.info, NULL); + break; + case RTM_NEWNEIGH: +- br_switchdev_fdb_call_notifiers(true, fdb->key.addr.addr, +- fdb->key.vlan_id, +- fdb->dst->dev, +- test_bit(BR_FDB_ADDED_BY_USER, +- &fdb->flags), +- test_bit(BR_FDB_OFFLOADED, +- &fdb->flags)); ++ call_switchdev_notifiers(SWITCHDEV_FDB_ADD_TO_DEVICE, ++ fdb->dst->dev, &info.info, NULL); + break; + } + } diff --git a/target/linux/generic/pending-5.10/763-net-bridge-switchdev-Include-local-flag-in-FDB-notif.patch b/target/linux/generic/pending-5.10/763-net-bridge-switchdev-Include-local-flag-in-FDB-notif.patch new file mode 100644 index 0000000000..41374c88df --- /dev/null +++ b/target/linux/generic/pending-5.10/763-net-bridge-switchdev-Include-local-flag-in-FDB-notif.patch @@ -0,0 +1,42 @@ +From ec5be4f79026282925ae383caa431a8d41e3456a Mon Sep 17 00:00:00 2001 +From: Tobias Waldekranz <tobias@waldekranz.com> +Date: Sat, 16 Jan 2021 02:25:10 +0100 +Subject: [PATCH] net: bridge: switchdev: Include local flag in FDB + notifications + +Some switchdev drivers, notably DSA, ignore all dynamically learned +address notifications (!added_by_user) as these are autonomously added +by the switch. Previously, such a notification was indistinguishable +from a local address notification. Include a local bit in the +notification so that the two classes can be discriminated. + +This allows DSA-like devices to add local addresses to the hardware +FDB (with the CPU as the destination), thereby avoiding flows towards +the CPU being flooded by the switch as unknown unicast. + +Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com> +--- + include/net/switchdev.h | 1 + + net/bridge/br_switchdev.c | 1 + + 2 files changed, 2 insertions(+) + +--- a/include/net/switchdev.h ++++ b/include/net/switchdev.h +@@ -224,6 +224,7 @@ struct switchdev_notifier_fdb_info { + const unsigned char *addr; + u16 vid; + u8 added_by_user:1, ++ local:1, + offloaded:1; + }; + +--- a/net/bridge/br_switchdev.c ++++ b/net/bridge/br_switchdev.c +@@ -109,6 +109,7 @@ br_switchdev_fdb_notify(const struct net + .addr = fdb->key.addr.addr, + .vid = fdb->key.vlan_id, + .added_by_user = test_bit(BR_FDB_ADDED_BY_USER, &fdb->flags), ++ .local = test_bit(BR_FDB_LOCAL, &fdb->flags), + .offloaded = test_bit(BR_FDB_OFFLOADED, &fdb->flags), + }; + diff --git a/target/linux/generic/pending-5.10/764-net-bridge-switchdev-Send-FDB-notifications-for-host.patch b/target/linux/generic/pending-5.10/764-net-bridge-switchdev-Send-FDB-notifications-for-host.patch new file mode 100644 index 0000000000..2317989fa5 --- /dev/null +++ b/target/linux/generic/pending-5.10/764-net-bridge-switchdev-Send-FDB-notifications-for-host.patch @@ -0,0 +1,94 @@ +From 2e50fd9322047253c327550b4485cf8761035a8c Mon Sep 17 00:00:00 2001 +From: Tobias Waldekranz <tobias@waldekranz.com> +Date: Sat, 16 Jan 2021 02:25:11 +0100 +Subject: [PATCH] net: bridge: switchdev: Send FDB notifications for host + addresses + +Treat addresses added to the bridge itself in the same way as regular +ports and send out a notification so that drivers may sync it down to +the hardware FDB. + +Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com> +--- + net/bridge/br_fdb.c | 4 ++-- + net/bridge/br_private.h | 7 ++++--- + net/bridge/br_switchdev.c | 11 +++++------ + 3 files changed, 11 insertions(+), 11 deletions(-) + +--- a/net/bridge/br_fdb.c ++++ b/net/bridge/br_fdb.c +@@ -602,7 +602,7 @@ void br_fdb_update(struct net_bridge *br + /* fastpath: update of existing entry */ + if (unlikely(source != fdb->dst && + !test_bit(BR_FDB_STICKY, &fdb->flags))) { +- br_switchdev_fdb_notify(fdb, RTM_DELNEIGH); ++ br_switchdev_fdb_notify(br, fdb, RTM_DELNEIGH); + fdb->dst = source; + fdb_modified = true; + /* Take over HW learned entry */ +@@ -735,7 +735,7 @@ static void fdb_notify(struct net_bridge + int err = -ENOBUFS; + + if (swdev_notify) +- br_switchdev_fdb_notify(fdb, type); ++ br_switchdev_fdb_notify(br, fdb, type); + + skb = nlmsg_new(fdb_nlmsg_size(), GFP_ATOMIC); + if (skb == NULL) +--- a/net/bridge/br_private.h ++++ b/net/bridge/br_private.h +@@ -1527,8 +1527,8 @@ bool nbp_switchdev_allowed_egress(const + int br_switchdev_set_port_flag(struct net_bridge_port *p, + unsigned long flags, + unsigned long mask); +-void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, +- int type); ++void br_switchdev_fdb_notify(struct net_bridge *br, ++ const struct net_bridge_fdb_entry *fdb, int type); + int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, + struct netlink_ext_ack *extack); + int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); +@@ -1574,7 +1574,8 @@ static inline int br_switchdev_port_vlan + } + + static inline void +-br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) ++br_switchdev_fdb_notify(struct net_bridge *br, ++ const struct net_bridge_fdb_entry *fdb, int type) + { + } + +--- a/net/bridge/br_switchdev.c ++++ b/net/bridge/br_switchdev.c +@@ -103,7 +103,8 @@ int br_switchdev_set_port_flag(struct ne + } + + void +-br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) ++br_switchdev_fdb_notify(struct net_bridge *br, ++ const struct net_bridge_fdb_entry *fdb, int type) + { + struct switchdev_notifier_fdb_info info = { + .addr = fdb->key.addr.addr, +@@ -112,18 +113,16 @@ br_switchdev_fdb_notify(const struct net + .local = test_bit(BR_FDB_LOCAL, &fdb->flags), + .offloaded = test_bit(BR_FDB_OFFLOADED, &fdb->flags), + }; +- +- if (!fdb->dst) +- return; ++ struct net_device *dev = fdb->dst ? fdb->dst->dev : br->dev; + + switch (type) { + case RTM_DELNEIGH: + call_switchdev_notifiers(SWITCHDEV_FDB_DEL_TO_DEVICE, +- fdb->dst->dev, &info.info, NULL); ++ dev, &info.info, NULL); + break; + case RTM_NEWNEIGH: + call_switchdev_notifiers(SWITCHDEV_FDB_ADD_TO_DEVICE, +- fdb->dst->dev, &info.info, NULL); ++ dev, &info.info, NULL); + break; + } + } diff --git a/target/linux/generic/pending-5.10/765-net-dsa-Include-local-addresses-in-assisted-CPU-port.patch b/target/linux/generic/pending-5.10/765-net-dsa-Include-local-addresses-in-assisted-CPU-port.patch new file mode 100644 index 0000000000..9246d1fa40 --- /dev/null +++ b/target/linux/generic/pending-5.10/765-net-dsa-Include-local-addresses-in-assisted-CPU-port.patch @@ -0,0 +1,36 @@ +From dd082716b43a3684b2f473ae5d1e76d1c076d86d Mon Sep 17 00:00:00 2001 +From: Tobias Waldekranz <tobias@waldekranz.com> +Date: Sat, 16 Jan 2021 02:25:12 +0100 +Subject: [PATCH] net: dsa: Include local addresses in assisted CPU port + learning + +Add local addresses (i.e. the ports' MAC addresses) to the hardware +FDB when assisted CPU port learning is enabled. + +NOTE: The bridge's own MAC address is also "local". If that address is +not shared with any port, the bridge's MAC is not be added by this +functionality - but the following commit takes care of that case. + +Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com> +--- + net/dsa/slave.c | 8 +++++--- + 1 file changed, 5 insertions(+), 3 deletions(-) + +--- a/net/dsa/slave.c ++++ b/net/dsa/slave.c +@@ -2144,10 +2144,12 @@ static int dsa_slave_switchdev_event(str + fdb_info = ptr; + + if (dsa_slave_dev_check(dev)) { +- if (!fdb_info->added_by_user) +- return NOTIFY_OK; +- + dp = dsa_slave_to_port(dev); ++ ++ if (fdb_info->local && dp->ds->assisted_learning_on_cpu_port) ++ dp = dp->cpu_dp; ++ else if (!fdb_info->added_by_user) ++ return NOTIFY_OK; + } else { + /* Snoop addresses learnt on foreign interfaces + * bridged with us, for switches that don't diff --git a/target/linux/generic/pending-5.10/766-net-dsa-Include-bridge-addresses-in-assisted-CPU-por.patch b/target/linux/generic/pending-5.10/766-net-dsa-Include-bridge-addresses-in-assisted-CPU-por.patch new file mode 100644 index 0000000000..77f0dca252 --- /dev/null +++ b/target/linux/generic/pending-5.10/766-net-dsa-Include-bridge-addresses-in-assisted-CPU-por.patch @@ -0,0 +1,30 @@ +From 0663ebde114a6fb2c28c622ba5212b302d4d2581 Mon Sep 17 00:00:00 2001 +From: Tobias Waldekranz <tobias@waldekranz.com> +Date: Sat, 16 Jan 2021 02:25:13 +0100 +Subject: [PATCH] net: dsa: Include bridge addresses in assisted CPU port + learning + +Now that notifications are sent out for addresses added to the bridge +itself, extend DSA to include those addresses in the hardware FDB when +assisted CPU port learning is enabled. + +Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com> +--- + net/dsa/slave.c | 6 +++++- + 1 file changed, 5 insertions(+), 1 deletion(-) + +--- a/net/dsa/slave.c ++++ b/net/dsa/slave.c +@@ -2158,7 +2158,11 @@ static int dsa_slave_switchdev_event(str + struct net_device *br_dev; + struct dsa_slave_priv *p; + +- br_dev = netdev_master_upper_dev_get_rcu(dev); ++ if (netif_is_bridge_master(dev)) ++ br_dev = dev; ++ else ++ br_dev = netdev_master_upper_dev_get_rcu(dev); ++ + if (!br_dev) + return NOTIFY_DONE; + diff --git a/target/linux/generic/pending-5.10/767-net-dsa-Sync-static-FDB-entries-on-foreign-interface.patch b/target/linux/generic/pending-5.10/767-net-dsa-Sync-static-FDB-entries-on-foreign-interface.patch new file mode 100644 index 0000000000..39271108ec --- /dev/null +++ b/target/linux/generic/pending-5.10/767-net-dsa-Sync-static-FDB-entries-on-foreign-interface.patch @@ -0,0 +1,56 @@ +From 81e39fd78db82fb51b05fff309b9c521f1a0bc5a Mon Sep 17 00:00:00 2001 +From: Tobias Waldekranz <tobias@waldekranz.com> +Date: Sat, 16 Jan 2021 02:25:14 +0100 +Subject: [PATCH] net: dsa: Sync static FDB entries on foreign interfaces to + hardware + +Reuse the "assisted_learning_on_cpu_port" functionality to always add +entries for user-configured entries on foreign interfaces, even if +assisted_learning_on_cpu_port is not enabled. E.g. in this situation: + + br0 + / \ +swp0 dummy0 + +$ bridge fdb add 02:00:de:ad:00:01 dev dummy0 vlan 1 master + +Results in DSA adding an entry in the hardware FDB, pointing this +address towards the CPU port. + +The same is true for entries added to the bridge itself, e.g: + +$ bridge fdb add 02:00:de:ad:00:01 dev br0 vlan 1 self + +Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com> +--- + net/dsa/slave.c | 12 ++++++++---- + 1 file changed, 8 insertions(+), 4 deletions(-) + +--- a/net/dsa/slave.c ++++ b/net/dsa/slave.c +@@ -2151,9 +2151,12 @@ static int dsa_slave_switchdev_event(str + else if (!fdb_info->added_by_user) + return NOTIFY_OK; + } else { +- /* Snoop addresses learnt on foreign interfaces +- * bridged with us, for switches that don't +- * automatically learn SA from CPU-injected traffic ++ /* Snoop addresses added to foreign interfaces ++ * bridged with us, or the bridge ++ * itself. Dynamically learned addresses can ++ * also be added for switches that don't ++ * automatically learn SA from CPU-injected ++ * traffic. + */ + struct net_device *br_dev; + struct dsa_slave_priv *p; +@@ -2175,7 +2178,8 @@ static int dsa_slave_switchdev_event(str + + dp = p->dp->cpu_dp; + +- if (!dp->ds->assisted_learning_on_cpu_port) ++ if (!fdb_info->added_by_user && ++ !dp->ds->assisted_learning_on_cpu_port) + return NOTIFY_DONE; + } + diff --git a/target/linux/generic/pending-5.10/768-net-dsa-mv88e6xxx-Request-assisted-learning-on-CPU-port.patch b/target/linux/generic/pending-5.10/768-net-dsa-mv88e6xxx-Request-assisted-learning-on-CPU-port.patch new file mode 100644 index 0000000000..5b8d058247 --- /dev/null +++ b/target/linux/generic/pending-5.10/768-net-dsa-mv88e6xxx-Request-assisted-learning-on-CPU-port.patch @@ -0,0 +1,27 @@ +From: Tobias Waldekranz <tobias@waldekranz.com> +Subject: [RFC net-next 7/7] net: dsa: mv88e6xxx: Request assisted learning on CPU port +Date: Sat, 16 Jan 2021 02:25:15 +0100 +Archived-At: <https://lore.kernel.org/netdev/20210116012515.3152-8-tobias@waldekranz.com/> + +While the hardware is capable of performing learning on the CPU port, +it requires alot of additions to the bridge's forwarding path in order +to handle multi-destination traffic correctly. + +Until that is in place, opt for the next best thing and let DSA sync +the relevant addresses down to the hardware FDB. + +Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com> +--- + drivers/net/dsa/mv88e6xxx/chip.c | 1 + + 1 file changed, 1 insertion(+) + +--- a/drivers/net/dsa/mv88e6xxx/chip.c ++++ b/drivers/net/dsa/mv88e6xxx/chip.c +@@ -5405,6 +5405,7 @@ static int mv88e6xxx_register_switch(str + ds->ops = &mv88e6xxx_switch_ops; + ds->ageing_time_min = chip->info->age_time_coeff; + ds->ageing_time_max = chip->info->age_time_coeff * U8_MAX; ++ ds->assisted_learning_on_cpu_port = true; + + dev_set_drvdata(dev, ds); + |