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realtek: drop patches of upstreamed fix and changes from 5.15

Browse Source 
- 007-5.16-gpio-realtek...: upstreamed on 5.16 and backported to 5.15.3
- 708-brflood-spi.patch   : upstreamed
- 709-lag-offloading.patch: upstreamed
- 713-v5.12-net-dsa-...   : upstreamed and some implementations are
                            replaced

Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
This commit is contained in:
INAGAKI Hiroshi 2022-03-29 15:15:07 +09:00 committed by Sander Vanheule
parent a9d5a8bc79
commit 23881c91e5
4 changed files with 0 additions and 1113 deletions
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22
target/linux/realtek/patches-5.15/007-5.16-gpio-realtek-realtek-otto-fix-gpio-line-irq-offset.patch
View File

@ -1,22 +0,0 @@
From: Sander Vanheule <sander@svanheule.net>
Subject: gpio: realtek-otto: fix GPIO line IRQ offset
The irqchip uses one domain for all GPIO lines, so th line offset should be
determined w.r.t. the first line of the first port, not the first line of the
triggered port.
Fixes: 0d82fb1127fb ("gpio: Add Realtek Otto GPIO support")
Signed-off-by: Sander Vanheule <sander@svanheule.net>
Link: https://lore.kernel.org/linux-gpio/20211028085243.34360-1-sander@svanheule.net/
--- a/drivers/gpio/gpio-realtek-otto.c
+++ b/drivers/gpio/gpio-realtek-otto.c
@@ -206,7 +206,7 @@ static void realtek_gpio_irq_handler(str
status = realtek_gpio_read_isr(ctrl, lines_done / 8);
port_pin_count = min(gc->ngpio - lines_done, 8U);
for_each_set_bit(offset, &status, port_pin_count) {
- irq = irq_find_mapping(gc->irq.domain, offset);
+ irq = irq_find_mapping(gc->irq.domain, offset + lines_done);
generic_handle_irq(irq);
}
}

162
target/linux/realtek/patches-5.15/708-brflood-api.patch
View File

@ -1,162 +0,0 @@
From afa3ab54c03d5126b14651f367b38165fab5b3cc Mon Sep 17 00:00:00 2001
From: Birger Koblitz <git@birger-koblitz.de>
Date: Tue, 18 Jan 2022 17:18:43 +0100
Subject: net: brflood API
Adds the DSA API for bridge configuration (flooding, L2 learning,
and aging) offload as found in Linux 5.12 so that we can implement
it in our drivver.
Submitted-by: Sebastian Gottschall <s.gottschall@dd-wrt.com>
Submitted-by: Birger Koblitz <git@birger-koblitz.de>
---
include/net/dsa.h | 6 +++++++--
net/dsa/dsa_priv.h | 6 +++---
net/dsa/port.c | 28 ++++++++----
net/dsa/slave.c | 6 +++---
4 file changed, 29 insertions(+), 13 deletions(-)
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -552,8 +552,14 @@ struct dsa_switch_ops {
void (*port_stp_state_set)(struct dsa_switch *ds, int port,
u8 state);
void (*port_fast_age)(struct dsa_switch *ds, int port);
- int (*port_egress_floods)(struct dsa_switch *ds, int port,
- bool unicast, bool multicast);
+ int (*port_pre_bridge_flags)(struct dsa_switch *ds, int port,
+ unsigned long flags,
+ struct netlink_ext_ack *extack);
+ int (*port_bridge_flags)(struct dsa_switch *ds, int port,
+ unsigned long flags,
+ struct netlink_ext_ack *extack);
+ int (*port_set_mrouter)(struct dsa_switch *ds, int port, bool mrouter,
+ struct netlink_ext_ack *extack);
/*
* VLAN support
--- a/net/dsa/dsa_priv.h
+++ b/net/dsa/dsa_priv.h
@@ -167,11 +167,11 @@ int dsa_port_mdb_add(const struct dsa_po
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);
+ struct switchdev_trans *trans, struct netlink_ext_ack *extack);
int dsa_port_bridge_flags(const struct dsa_port *dp, unsigned long flags,
- struct switchdev_trans *trans);
+ struct switchdev_trans *trans, struct netlink_ext_ack *extack);
int dsa_port_mrouter(struct dsa_port *dp, bool mrouter,
- struct switchdev_trans *trans);
+ struct switchdev_trans *trans, struct netlink_ext_ack *extack);
int dsa_port_vlan_add(struct dsa_port *dp,
const struct switchdev_obj_port_vlan *vlan,
struct switchdev_trans *trans);
--- a/net/dsa/port.c
+++ b/net/dsa/port.c
@@ -145,7 +145,7 @@ int dsa_port_bridge_join(struct dsa_port
int err;
/* Set the flooding mode before joining the port in the switch */
- err = dsa_port_bridge_flags(dp, BR_FLOOD | BR_MCAST_FLOOD, NULL);
+ err = dsa_port_bridge_flags(dp, BR_FLOOD | BR_MCAST_FLOOD, NULL, NULL);
if (err)
return err;
@@ -158,7 +158,7 @@ int dsa_port_bridge_join(struct dsa_port
/* The bridging is rolled back on error */
if (err) {
- dsa_port_bridge_flags(dp, 0, NULL);
+ dsa_port_bridge_flags(dp, 0, NULL, NULL);
dp->bridge_dev = NULL;
}
@@ -185,7 +185,7 @@ void dsa_port_bridge_leave(struct dsa_po
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);
+ dsa_port_bridge_flags(dp, 0, NULL, 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
@@ -333,44 +333,44 @@ int dsa_port_ageing_time(struct dsa_port
}
int dsa_port_pre_bridge_flags(const struct dsa_port *dp, unsigned long flags,
- struct switchdev_trans *trans)
+ struct switchdev_trans *trans, struct netlink_ext_ack *extack)
{
struct dsa_switch *ds = dp->ds;
- if (!ds->ops->port_egress_floods ||
- (flags & ~(BR_FLOOD | BR_MCAST_FLOOD)))
+ if (!ds->ops->port_pre_bridge_flags)
return -EINVAL;
- return 0;
+ return ds->ops->port_pre_bridge_flags(ds, dp->index, flags, extack);
}
int dsa_port_bridge_flags(const struct dsa_port *dp, unsigned long flags,
- struct switchdev_trans *trans)
+ struct switchdev_trans *trans, struct netlink_ext_ack *extack)
{
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);
+ if (!ds->ops->port_bridge_flags)
+ return -EINVAL;
+
+ return ds->ops->port_bridge_flags(ds, dp->index, flags, extack);
- return err;
}
int dsa_port_mrouter(struct dsa_port *dp, bool mrouter,
- struct switchdev_trans *trans)
+ struct switchdev_trans *trans,
+ struct netlink_ext_ack *extack)
{
struct dsa_switch *ds = dp->ds;
- int port = dp->index;
if (switchdev_trans_ph_prepare(trans))
- return ds->ops->port_egress_floods ? 0 : -EOPNOTSUPP;
+ return ds->ops->port_set_mrouter ? 0 : -EOPNOTSUPP;
+
+ if (!ds->ops->port_set_mrouter)
+ return -EOPNOTSUPP;
- return ds->ops->port_egress_floods(ds, port, true, mrouter);
+ return ds->ops->port_set_mrouter(ds, dp->index, mrouter, extack);
}
int dsa_port_mtu_change(struct dsa_port *dp, int new_mtu,
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -290,13 +290,13 @@ static int dsa_slave_port_attr_set(struc
break;
case SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS:
ret = dsa_port_pre_bridge_flags(dp, attr->u.brport_flags,
- trans);
+ trans, NULL);
break;
case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
- ret = dsa_port_bridge_flags(dp, attr->u.brport_flags, trans);
+ ret = dsa_port_bridge_flags(dp, attr->u.brport_flags, trans, NULL);
break;
case SWITCHDEV_ATTR_ID_BRIDGE_MROUTER:
- ret = dsa_port_mrouter(dp->cpu_dp, attr->u.mrouter, trans);
+ ret = dsa_port_mrouter(dp->cpu_dp, attr->u.mrouter, trans, NULL);
break;
default:
ret = -EOPNOTSUPP;

781
target/linux/realtek/patches-5.15/709-lag-offloading.patch
View File

@ -1,781 +0,0 @@
From afa3ab54c03d5126b14651f367b38165fab5b3cc Mon Sep 17 00:00:00 2001
From: Birger Koblitz <git@birger-koblitz.de>
Date: Tue, 18 Jan 2022 17:18:43 +0100
Subject: [PATCH] realtek: Backport bridge configuration for DSA
Adds the DSA API for bridge configuration (flooding, L2 learning,
and aging) offload as found in Linux 5.12 so that we can implement
it in our drivver.
Submitted-by: Sebastian Gottschall <s.gottschall@dd-wrt.com>
Submitted-by: Birger Koblitz <git@birger-koblitz.de>
---
drivers/net/bonding/bond_main.c | 2 ++
include/net/dsa.h | 79 ++++++++++++++++-
net/dsa/dsa2.c | 88 +++++++++++++++++++
net/dsa/dsa_priv.h | 74 ++++++++++++++
net/dsa/port.c | 92 ++++++++++++++++++++
net/dsa/slave.c | 88 ++++++++++++++++---
net/dsa/switch.c | 49 ++++++++++
net/sda/tag_dsa.c | 13 +++++-
8 file changed, 460 insertions(+), 25 deletions(-)
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -2045,6 +2045,8 @@ int bond_enslave(struct net_device *bond
goto err_unregister;
}
+ bond_lower_state_changed(new_slave);
+
res = bond_sysfs_slave_add(new_slave);
if (res) {
slave_dbg(bond_dev, slave_dev, "Error %d calling bond_sysfs_slave_add\n", res);
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -149,8 +149,41 @@ struct dsa_switch_tree {
/* List of DSA links composing the routing table */
struct list_head rtable;
+
+ /* Maps offloaded LAG netdevs to a zero-based linear ID for
+ * drivers that need it.
+ */
+ struct net_device **lags;
+ unsigned int lags_len;
};
+#define dsa_lags_foreach_id(_id, _dst) \
+ for ((_id) = 0; (_id) < (_dst)->lags_len; (_id)++) \
+ if ((_dst)->lags[(_id)])
+
+#define dsa_lag_foreach_port(_dp, _dst, _lag) \
+ list_for_each_entry((_dp), &(_dst)->ports, list) \
+ if ((_dp)->lag_dev == (_lag))
+
+static inline struct net_device *dsa_lag_dev(struct dsa_switch_tree *dst,
+ unsigned int id)
+{
+ return dst->lags[id];
+}
+
+static inline int dsa_lag_id(struct dsa_switch_tree *dst,
+ struct net_device *lag)
+{
+ unsigned int id;
+
+ dsa_lags_foreach_id(id, dst) {
+ if (dsa_lag_dev(dst, id) == lag)
+ return id;
+ }
+
+ return -ENODEV;
+}
+
/* TC matchall action types */
enum dsa_port_mall_action_type {
DSA_PORT_MALL_MIRROR,
@@ -220,6 +253,8 @@ struct dsa_port {
bool devlink_port_setup;
struct phylink *pl;
struct phylink_config pl_config;
+ struct net_device *lag_dev;
+ bool lag_tx_enabled;
struct list_head list;
@@ -340,6 +375,14 @@ struct dsa_switch {
*/
bool mtu_enforcement_ingress;
+ /* Drivers that benefit from having an ID associated with each
+ * offloaded LAG should set this to the maximum number of
+ * supported IDs. DSA will then maintain a mapping of _at
+ * least_ these many IDs, accessible to drivers via
+ * dsa_lag_id().
+ */
+ unsigned int num_lag_ids;
+
size_t num_ports;
};
@@ -432,6 +475,18 @@ static inline bool dsa_port_is_vlan_filt
return dp->vlan_filtering;
}
+static inline
+struct net_device *dsa_port_to_bridge_port(const struct dsa_port *dp)
+{
+ if (!dp->bridge_dev)
+ return NULL;
+
+ if (dp->lag_dev)
+ return dp->lag_dev;
+
+ return dp->slave;
+}
+
typedef int dsa_fdb_dump_cb_t(const unsigned char *addr, u16 vid,
bool is_static, void *data);
struct dsa_switch_ops {
@@ -629,6 +684,13 @@ struct dsa_switch_ops {
void (*crosschip_bridge_leave)(struct dsa_switch *ds, int tree_index,
int sw_index, int port,
struct net_device *br);
+ int (*crosschip_lag_change)(struct dsa_switch *ds, int sw_index,
+ int port);
+ int (*crosschip_lag_join)(struct dsa_switch *ds, int sw_index,
+ int port, struct net_device *lag,
+ struct netdev_lag_upper_info *info);
+ int (*crosschip_lag_leave)(struct dsa_switch *ds, int sw_index,
+ int port, struct net_device *lag);
/*
* PTP functionality
@@ -660,6 +722,16 @@ struct dsa_switch_ops {
int (*port_change_mtu)(struct dsa_switch *ds, int port,
int new_mtu);
int (*port_max_mtu)(struct dsa_switch *ds, int port);
+
+ /*
+ * LAG integration
+ */
+ int (*port_lag_change)(struct dsa_switch *ds, int port);
+ int (*port_lag_join)(struct dsa_switch *ds, int port,
+ struct net_device *lag,
+ struct netdev_lag_upper_info *info);
+ int (*port_lag_leave)(struct dsa_switch *ds, int port,
+ struct net_device *lag);
};
#define DSA_DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes) \
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -220,11 +220,21 @@ static int dsa_switch_rcv(struct sk_buff
}
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);
+ if (unlikely(!dsa_slave_dev_check(skb->dev))) {
+ /* Packet is to be injected directly on an upper
+ * device, e.g. a team/bond, so skip all DSA-port
+ * specific actions.
+ */
+ netif_rx(skb);
+ return 0;
+ }
+
+ p = netdev_priv(skb->dev);
+
if (unlikely(cpu_dp->ds->untag_bridge_pvid)) {
nskb = dsa_untag_bridge_pvid(skb);
if (!nskb) {
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -21,6 +21,65 @@
static DEFINE_MUTEX(dsa2_mutex);
LIST_HEAD(dsa_tree_list);
+/**
+ * dsa_lag_map() - Map LAG netdev to a linear LAG ID
+ * @dst: Tree in which to record the mapping.
+ * @lag: Netdev that is to be mapped to an ID.
+ *
+ * dsa_lag_id/dsa_lag_dev can then be used to translate between the
+ * two spaces. The size of the mapping space is determined by the
+ * driver by setting ds->num_lag_ids. It is perfectly legal to leave
+ * it unset if it is not needed, in which case these functions become
+ * no-ops.
+ */
+void dsa_lag_map(struct dsa_switch_tree *dst, struct net_device *lag)
+{
+ unsigned int id;
+
+ if (dsa_lag_id(dst, lag) >= 0)
+ /* Already mapped */
+ return;
+
+ for (id = 0; id < dst->lags_len; id++) {
+ if (!dsa_lag_dev(dst, id)) {
+ dst->lags[id] = lag;
+ return;
+ }
+ }
+
+ /* No IDs left, which is OK. Some drivers do not need it. The
+ * ones that do, e.g. mv88e6xxx, will discover that dsa_lag_id
+ * returns an error for this device when joining the LAG. The
+ * driver can then return -EOPNOTSUPP back to DSA, which will
+ * fall back to a software LAG.
+ */
+}
+
+/**
+ * dsa_lag_unmap() - Remove a LAG ID mapping
+ * @dst: Tree in which the mapping is recorded.
+ * @lag: Netdev that was mapped.
+ *
+ * As there may be multiple users of the mapping, it is only removed
+ * if there are no other references to it.
+ */
+void dsa_lag_unmap(struct dsa_switch_tree *dst, struct net_device *lag)
+{
+ struct dsa_port *dp;
+ unsigned int id;
+
+ dsa_lag_foreach_port(dp, dst, lag)
+ /* There are remaining users of this mapping */
+ return;
+
+ dsa_lags_foreach_id(id, dst) {
+ if (dsa_lag_dev(dst, id) == lag) {
+ dst->lags[id] = NULL;
+ break;
+ }
+ }
+}
+
struct dsa_switch *dsa_switch_find(int tree_index, int sw_index)
{
struct dsa_switch_tree *dst;
@@ -597,6 +656,32 @@ static void dsa_tree_teardown_master(str
dsa_master_teardown(dp->master);
}
+static int dsa_tree_setup_lags(struct dsa_switch_tree *dst)
+{
+ unsigned int len = 0;
+ struct dsa_port *dp;
+
+ list_for_each_entry(dp, &dst->ports, list) {
+ if (dp->ds->num_lag_ids > len)
+ len = dp->ds->num_lag_ids;
+ }
+
+ if (!len)
+ return 0;
+
+ dst->lags = kcalloc(len, sizeof(*dst->lags), GFP_KERNEL);
+ if (!dst->lags)
+ return -ENOMEM;
+
+ dst->lags_len = len;
+ return 0;
+}
+
+static void dsa_tree_teardown_lags(struct dsa_switch_tree *dst)
+{
+ kfree(dst->lags);
+}
+
static int dsa_tree_setup(struct dsa_switch_tree *dst)
{
bool complete;
@@ -624,12 +709,18 @@ static int dsa_tree_setup(struct dsa_swi
if (err)
goto teardown_switches;
+ err = dsa_tree_setup_lags(dst);
+ if (err)
+ goto teardown_master;
+
dst->setup = true;
pr_info("DSA: tree %d setup\n", dst->index);
return 0;
+teardown_master:
+ dsa_tree_teardown_master(dst);
teardown_switches:
dsa_tree_teardown_switches(dst);
teardown_default_cpu:
@@ -645,6 +736,8 @@ static void dsa_tree_teardown(struct dsa
if (!dst->setup)
return;
+ dsa_tree_teardown_lags(dst);
+
dsa_tree_teardown_master(dst);
dsa_tree_teardown_switches(dst);
--- a/net/dsa/dsa_priv.h
+++ b/net/dsa/dsa_priv.h
@@ -20,6 +20,9 @@ enum {
DSA_NOTIFIER_BRIDGE_LEAVE,
DSA_NOTIFIER_FDB_ADD,
DSA_NOTIFIER_FDB_DEL,
+ DSA_NOTIFIER_LAG_CHANGE,
+ DSA_NOTIFIER_LAG_JOIN,
+ DSA_NOTIFIER_LAG_LEAVE,
DSA_NOTIFIER_MDB_ADD,
DSA_NOTIFIER_MDB_DEL,
DSA_NOTIFIER_VLAN_ADD,
@@ -57,6 +60,15 @@ struct dsa_notifier_mdb_info {
int port;
};
+/* DSA_NOTIFIER_LAG_* */
+struct dsa_notifier_lag_info {
+ struct net_device *lag;
+ int sw_index;
+ int port;
+
+ struct netdev_lag_upper_info *info;
+};
+
/* DSA_NOTIFIER_VLAN_* */
struct dsa_notifier_vlan_info {
const struct switchdev_obj_port_vlan *vlan;
@@ -149,6 +161,11 @@ void dsa_port_disable_rt(struct dsa_port
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_lag_change(struct dsa_port *dp,
+ struct netdev_lag_lower_state_info *linfo);
+int dsa_port_lag_join(struct dsa_port *dp, struct net_device *lag_dev,
+ struct netdev_lag_upper_info *uinfo);
+void dsa_port_lag_leave(struct dsa_port *dp, struct net_device *lag_dev);
int dsa_port_vlan_filtering(struct dsa_port *dp, bool vlan_filtering,
struct switchdev_trans *trans);
bool dsa_port_skip_vlan_configuration(struct dsa_port *dp);
@@ -181,6 +198,71 @@ int dsa_port_link_register_of(struct dsa
void dsa_port_link_unregister_of(struct dsa_port *dp);
extern const struct phylink_mac_ops dsa_port_phylink_mac_ops;
+static inline bool dsa_port_offloads_netdev(struct dsa_port *dp,
+ struct net_device *dev)
+{
+ /* Switchdev offloading can be configured on: */
+
+ if (dev == dp->slave)
+ /* DSA ports directly connected to a bridge, and event
+ * was emitted for the ports themselves.
+ */
+ return true;
+
+ if (dp->bridge_dev == dev)
+ /* DSA ports connected to a bridge, and event was emitted
+ * for the bridge.
+ */
+ return true;
+
+ if (dp->lag_dev == dev)
+ /* DSA ports connected to a bridge via a LAG */
+ return true;
+
+ return false;
+}
+
+static inline bool dsa_port_offloads_bridge_port(struct dsa_port *dp,
+ struct net_device *dev)
+{
+ return dsa_port_to_bridge_port(dp) == dev;
+}
+
+static inline bool dsa_port_offloads_bridge(struct dsa_port *dp,
+ struct net_device *bridge_dev)
+{
+ /* DSA ports connected to a bridge, and event was emitted
+ * for the bridge.
+ */
+ return dp->bridge_dev == bridge_dev;
+}
+
+/* Returns true if any port of this tree offloads the given net_device */
+static inline bool dsa_tree_offloads_bridge_port(struct dsa_switch_tree *dst,
+ struct net_device *dev)
+{
+ struct dsa_port *dp;
+
+ list_for_each_entry(dp, &dst->ports, list)
+ if (dsa_port_offloads_bridge_port(dp, dev))
+ return true;
+
+ return false;
+}
+
+/* Returns true if any port of this tree offloads the given net_device */
+static inline bool dsa_tree_offloads_netdev(struct dsa_switch_tree *dst,
+ struct net_device *dev)
+{
+ struct dsa_port *dp;
+
+ list_for_each_entry(dp, &dst->ports, list)
+ if (dsa_port_offloads_netdev(dp, dev))
+ return true;
+
+ return false;
+}
+
/* slave.c */
extern const struct dsa_device_ops notag_netdev_ops;
void dsa_slave_mii_bus_init(struct dsa_switch *ds);
@@ -285,6 +367,9 @@ int dsa_switch_register_notifier(struct
void dsa_switch_unregister_notifier(struct dsa_switch *ds);
/* dsa2.c */
+void dsa_lag_map(struct dsa_switch_tree *dst, struct net_device *lag);
+void dsa_lag_unmap(struct dsa_switch_tree *dst, struct net_device *lag);
+
extern struct list_head dsa_tree_list;
#endif
--- a/net/dsa/port.c
+++ b/net/dsa/port.c
@@ -193,6 +193,99 @@ void dsa_port_bridge_leave(struct dsa_po
dsa_port_set_state_now(dp, BR_STATE_FORWARDING);
}
+int dsa_port_lag_change(struct dsa_port *dp,
+ struct netdev_lag_lower_state_info *linfo)
+{
+ struct dsa_notifier_lag_info info = {
+ .sw_index = dp->ds->index,
+ .port = dp->index,
+ };
+ bool tx_enabled;
+
+ if (!dp->lag_dev)
+ return 0;
+
+ /* On statically configured aggregates (e.g. loadbalance
+ * without LACP) ports will always be tx_enabled, even if the
+ * link is down. Thus we require both link_up and tx_enabled
+ * in order to include it in the tx set.
+ */
+ tx_enabled = linfo->link_up && linfo->tx_enabled;
+
+ if (tx_enabled == dp->lag_tx_enabled)
+ return 0;
+
+ dp->lag_tx_enabled = tx_enabled;
+
+ return dsa_port_notify(dp, DSA_NOTIFIER_LAG_CHANGE, &info);
+}
+
+int dsa_port_lag_join(struct dsa_port *dp, struct net_device *lag,
+ struct netdev_lag_upper_info *uinfo)
+{
+ struct dsa_notifier_lag_info info = {
+ .sw_index = dp->ds->index,
+ .port = dp->index,
+ .lag = lag,
+ .info = uinfo,
+ };
+ struct net_device *bridge_dev;
+ int err;
+
+ dsa_lag_map(dp->ds->dst, lag);
+ dp->lag_dev = lag;
+
+ err = dsa_port_notify(dp, DSA_NOTIFIER_LAG_JOIN, &info);
+ if (err)
+ goto err_lag_join;
+
+ bridge_dev = netdev_master_upper_dev_get(lag);
+ if (!bridge_dev || !netif_is_bridge_master(bridge_dev))
+ return 0;
+
+ err = dsa_port_bridge_join(dp, bridge_dev);
+ if (err)
+ goto err_bridge_join;
+
+ return 0;
+
+err_bridge_join:
+ dsa_port_notify(dp, DSA_NOTIFIER_LAG_LEAVE, &info);
+err_lag_join:
+ dp->lag_dev = NULL;
+ dsa_lag_unmap(dp->ds->dst, lag);
+ return err;
+}
+
+void dsa_port_lag_leave(struct dsa_port *dp, struct net_device *lag)
+{
+ struct dsa_notifier_lag_info info = {
+ .sw_index = dp->ds->index,
+ .port = dp->index,
+ .lag = lag,
+ };
+ int err;
+
+ if (!dp->lag_dev)
+ return;
+
+ /* Port might have been part of a LAG that in turn was
+ * attached to a bridge.
+ */
+ if (dp->bridge_dev)
+ dsa_port_bridge_leave(dp, dp->bridge_dev);
+
+ dp->lag_tx_enabled = false;
+ dp->lag_dev = NULL;
+
+ err = dsa_port_notify(dp, DSA_NOTIFIER_LAG_LEAVE, &info);
+ if (err)
+ pr_err("DSA: failed to notify DSA_NOTIFIER_LAG_LEAVE: %d\n",
+ err);
+
+ dsa_lag_unmap(dp->ds->dst, lag);
+}
+
/* Must be called under rcu_read_lock() */
static bool dsa_port_can_apply_vlan_filtering(struct dsa_port *dp,
bool vlan_filtering)
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -337,9 +337,6 @@ static int dsa_slave_vlan_add(struct net
struct switchdev_obj_port_vlan vlan;
int vid, err;
- if (obj->orig_dev != dev)
- return -EOPNOTSUPP;
-
if (dsa_port_skip_vlan_configuration(dp))
return 0;
@@ -394,11 +391,13 @@ static int dsa_slave_port_obj_add(struct
switch (obj->id) {
case SWITCHDEV_OBJ_ID_PORT_MDB:
- if (obj->orig_dev != dev)
+ if (!dsa_port_offloads_bridge_port(dp, obj->orig_dev))
return -EOPNOTSUPP;
err = dsa_port_mdb_add(dp, SWITCHDEV_OBJ_PORT_MDB(obj), trans);
break;
case SWITCHDEV_OBJ_ID_HOST_MDB:
+ if (!dsa_port_offloads_bridge(dp, obj->orig_dev))
+ return -EOPNOTSUPP;
/* DSA can directly translate this to a normal MDB add,
* but on the CPU port.
*/
@@ -406,6 +405,9 @@ static int dsa_slave_port_obj_add(struct
trans);
break;
case SWITCHDEV_OBJ_ID_PORT_VLAN:
+ if (!dsa_port_offloads_bridge_port(dp, obj->orig_dev))
+ return -EOPNOTSUPP;
+
err = dsa_slave_vlan_add(dev, obj, trans);
break;
default:
@@ -424,9 +426,6 @@ static int dsa_slave_vlan_del(struct net
struct switchdev_obj_port_vlan *vlan;
int vid, err;
- if (obj->orig_dev != dev)
- return -EOPNOTSUPP;
-
if (dsa_port_skip_vlan_configuration(dp))
return 0;
@@ -453,17 +452,22 @@ static int dsa_slave_port_obj_del(struct
switch (obj->id) {
case SWITCHDEV_OBJ_ID_PORT_MDB:
- if (obj->orig_dev != dev)
+ if (!dsa_port_offloads_bridge_port(dp, obj->orig_dev))
return -EOPNOTSUPP;
err = dsa_port_mdb_del(dp, SWITCHDEV_OBJ_PORT_MDB(obj));
break;
case SWITCHDEV_OBJ_ID_HOST_MDB:
+ if (!dsa_port_offloads_bridge(dp, obj->orig_dev))
+ return -EOPNOTSUPP;
/* DSA can directly translate this to a normal MDB add,
* but on the CPU port.
*/
err = dsa_port_mdb_del(dp->cpu_dp, SWITCHDEV_OBJ_PORT_MDB(obj));
break;
case SWITCHDEV_OBJ_ID_PORT_VLAN:
+ if (!dsa_port_offloads_bridge_port(dp, obj->orig_dev))
+ return -EOPNOTSUPP;
+
err = dsa_slave_vlan_del(dev, obj);
break;
default:
@@ -1993,6 +1997,46 @@ static int dsa_slave_changeupper(struct
dsa_port_bridge_leave(dp, info->upper_dev);
err = NOTIFY_OK;
}
+ } else if (netif_is_lag_master(info->upper_dev)) {
+ if (info->linking) {
+ err = dsa_port_lag_join(dp, info->upper_dev,
+ info->upper_info);
+ if (err == -EOPNOTSUPP) {
+ NL_SET_ERR_MSG_MOD(info->info.extack,
+ "Offloading not supported");
+ err = 0;
+ }
+ err = notifier_from_errno(err);
+ } else {
+ dsa_port_lag_leave(dp, info->upper_dev);
+ err = NOTIFY_OK;
+ }
+ }
+
+ return err;
+}
+
+static int
+dsa_slave_lag_changeupper(struct net_device *dev,
+ struct netdev_notifier_changeupper_info *info)
+{
+ struct net_device *lower;
+ struct list_head *iter;
+ int err = NOTIFY_DONE;
+ struct dsa_port *dp;
+
+ netdev_for_each_lower_dev(dev, lower, iter) {
+ if (!dsa_slave_dev_check(lower))
+ continue;
+
+ dp = dsa_slave_to_port(lower);
+ if (!dp->lag_dev)
+ /* Software LAG */
+ continue;
+
+ err = dsa_slave_changeupper(lower, info);
+ if (notifier_to_errno(err))
+ break;
}
return err;
@@ -2078,10 +2122,26 @@ static int dsa_slave_netdevice_event(str
break;
}
case NETDEV_CHANGEUPPER:
+ if (dsa_slave_dev_check(dev))
+ return dsa_slave_changeupper(dev, ptr);
+
+ if (netif_is_lag_master(dev))
+ return dsa_slave_lag_changeupper(dev, ptr);
+
+ break;
+ case NETDEV_CHANGELOWERSTATE: {
+ struct netdev_notifier_changelowerstate_info *info = ptr;
+ struct dsa_port *dp;
+ int err;
+
if (!dsa_slave_dev_check(dev))
- return NOTIFY_DONE;
+ break;
- return dsa_slave_changeupper(dev, ptr);
+ dp = dsa_slave_to_port(dev);
+
+ err = dsa_port_lag_change(dp, info->lower_state_info);
+ return notifier_from_errno(err);
+ }
}
return NOTIFY_DONE;
@@ -2229,6 +2289,15 @@ static int dsa_slave_switchdev_event(str
if (!fdb_info->added_by_user &&
!dp->ds->assisted_learning_on_cpu_port)
return NOTIFY_DONE;
+
+ /* When the bridge learns an address on an offloaded
+ * LAG we don't want to send traffic to the CPU, the
+ * other ports bridged with the LAG should be able to
+ * autonomously forward towards it.
+ */
+ if (dsa_tree_offloads_netdev(dp->ds->dst, dev))
+ return NOTIFY_DONE;
+
}
if (!dp->ds->ops->port_fdb_add || !dp->ds->ops->port_fdb_del)
--- a/net/dsa/switch.c
+++ b/net/dsa/switch.c
@@ -193,6 +193,47 @@ static int dsa_switch_fdb_del(struct dsa
return ds->ops->port_fdb_del(ds, port, info->addr, info->vid);
}
+static int dsa_switch_lag_change(struct dsa_switch *ds,
+ struct dsa_notifier_lag_info *info)
+{
+ if (ds->index == info->sw_index && ds->ops->port_lag_change)
+ return ds->ops->port_lag_change(ds, info->port);
+
+ if (ds->index != info->sw_index && ds->ops->crosschip_lag_change)
+ return ds->ops->crosschip_lag_change(ds, info->sw_index,
+ info->port);
+
+ return 0;
+}
+
+static int dsa_switch_lag_join(struct dsa_switch *ds,
+ struct dsa_notifier_lag_info *info)
+{
+ if (ds->index == info->sw_index && ds->ops->port_lag_join)
+ return ds->ops->port_lag_join(ds, info->port, info->lag,
+ info->info);
+
+ if (ds->index != info->sw_index && ds->ops->crosschip_lag_join)
+ return ds->ops->crosschip_lag_join(ds, info->sw_index,
+ info->port, info->lag,
+ info->info);
+
+ return -EOPNOTSUPP;
+}
+
+static int dsa_switch_lag_leave(struct dsa_switch *ds,
+ struct dsa_notifier_lag_info *info)
+{
+ if (ds->index == info->sw_index && ds->ops->port_lag_leave)
+ return ds->ops->port_lag_leave(ds, info->port, info->lag);
+
+ if (ds->index != info->sw_index && ds->ops->crosschip_lag_leave)
+ return ds->ops->crosschip_lag_leave(ds, info->sw_index,
+ info->port, info->lag);
+
+ return -EOPNOTSUPP;
+}
+
static bool dsa_switch_mdb_match(struct dsa_switch *ds, int port,
struct dsa_notifier_mdb_info *info)
{
@@ -340,6 +381,15 @@ static int dsa_switch_event(struct notif
case DSA_NOTIFIER_FDB_DEL:
err = dsa_switch_fdb_del(ds, info);
break;
+ case DSA_NOTIFIER_LAG_CHANGE:
+ err = dsa_switch_lag_change(ds, info);
+ break;
+ case DSA_NOTIFIER_LAG_JOIN:
+ err = dsa_switch_lag_join(ds, info);
+ break;
+ case DSA_NOTIFIER_LAG_LEAVE:
+ err = dsa_switch_lag_leave(ds, info);
+ break;
case DSA_NOTIFIER_MDB_ADD:
err = dsa_switch_mdb_add(ds, info);
break;
--- a/net/dsa/tag_dsa.c
+++ b/net/dsa/tag_dsa.c
@@ -82,7 +82,19 @@ static struct sk_buff *dsa_rcv(struct sk
source_device = dsa_header[0] & 0x1f;
source_port = (dsa_header[1] >> 3) & 0x1f;
- skb->dev = dsa_master_find_slave(dev, source_device, source_port);
+ if (trunk) {
+ struct dsa_port *cpu_dp = dev->dsa_ptr;
+
+ /* The exact source port is not available in the tag,
+ * so we inject the frame directly on the upper
+ * team/bond.
+ */
+ skb->dev = dsa_lag_dev(cpu_dp->dst, source_port);
+ } else {
+ skb->dev = dsa_master_find_slave(dev, source_device,
+ source_port);
+ }
+
if (!skb->dev)
return NULL;

148
target/linux/realtek/patches-5.15/713-v5.12-net-dsa-configure-better-brport-flags-when-ports-lea.patch
View File

@ -1,148 +0,0 @@
From: Vladimir Oltean <vladimir.oltean@nxp.com>
Date: Fri, 12 Feb 2021 17:15:54 +0200
Subject: [PATCH] net: dsa: configure better brport flags when ports leave the
bridge
Bugfixed version of upstream commit 5e38c15856e9 ("net: dsa: configure
better brport flags when ports leave the bridge")
For a DSA switch port operating in standalone mode, address learning
doesn't make much sense since that is a bridge function. In fact,
address learning even breaks setups such as this one:
+---------------------------------------------+
| |
| +-------------------+ |
| | br0 | send receive |
| +--------+-+--------+ +--------+ +--------+ |
| | | | | | | | | |
| | swp0 | | swp1 | | swp2 | | swp3 | |
| | | | | | | | | |
+-+--------+-+--------+-+--------+-+--------+-+
| ^ | ^
| | | |
| +-----------+ |
| |
+--------------------------------+
because if the switch has a single FDB (can offload a single bridge)
then source address learning on swp3 can "steal" the source MAC address
of swp2 from br0's FDB, because learning frames coming from swp2 will be
done twice: first on the swp1 ingress port, second on the swp3 ingress
port. So the hardware FDB will become out of sync with the software
bridge, and when swp2 tries to send one more packet towards swp1, the
ASIC will attempt to short-circuit the forwarding path and send it
directly to swp3 (since that's the last port it learned that address on),
which it obviously can't, because swp3 operates in standalone mode.
So DSA drivers operating in standalone mode should still configure a
list of bridge port flags even when they are standalone. Currently DSA
attempts to call dsa_port_bridge_flags with 0, which disables egress
flooding of unknown unicast and multicast, something which doesn't make
much sense. For the switches that implement .port_egress_floods - b53
and mv88e6xxx, it probably doesn't matter too much either, since they
can possibly inject traffic from the CPU into a standalone port,
regardless of MAC DA, even if egress flooding is turned off for that
port, but certainly not all DSA switches can do that - sja1105, for
example, can't. So it makes sense to use a better common default there,
such as "flood everything".
It should also be noted that what DSA calls "dsa_port_bridge_flags()"
is a degenerate name for just calling .port_egress_floods(), since
nothing else is implemented - not learning, in particular. But disabling
address learning, something that this driver is also coding up for, will
be supported by individual drivers once .port_egress_floods is replaced
with a more generic .port_bridge_flags.
Previous attempts to code up this logic have been in the common bridge
layer, but as pointed out by Ido Schimmel, there are corner cases that
are missed when doing that:
https://patchwork.kernel.org/project/netdevbpf/patch/20210209151936.97382-5-olteanv@gmail.com/
So, at least for now, let's leave DSA in charge of setting port flags
before and after the bridge join and leave.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
[ backport and bugfix: break dsa_port_bridge_flags() out of loop ]
Signed-off-by: Bjørn Mork <bjorn@mork.no>
---
net/dsa/port.c | 45 ++++++++++++++++++++++++++++++++++++++-------
1 file changed, 38 insertions(+), 7 deletions(-)
--- a/net/dsa/port.c
+++ b/net/dsa/port.c
@@ -134,6 +134,27 @@ void dsa_port_disable(struct dsa_port *d
rtnl_unlock();
}
+static void dsa_port_change_brport_flags(struct dsa_port *dp,
+ bool bridge_offload)
+{
+ unsigned long mask, flags;
+ int flag, err;
+
+ mask = BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD | BR_BCAST_FLOOD;
+ if (bridge_offload)
+ flags = mask;
+ else
+ flags = mask & ~BR_LEARNING;
+
+ for_each_set_bit(flag, &mask, 32) {
+ err = dsa_port_pre_bridge_flags(dp, BIT(flag), NULL, NULL);
+ if (err)
+ flags &= ~BIT(flag);
+ }
+
+ dsa_port_bridge_flags(dp, flags, NULL, NULL);
+}
+
int dsa_port_bridge_join(struct dsa_port *dp, struct net_device *br)
{
struct dsa_notifier_bridge_info info = {
@@ -144,10 +165,10 @@ int dsa_port_bridge_join(struct dsa_port
};
int err;
- /* Set the flooding mode before joining the port in the switch */
- err = dsa_port_bridge_flags(dp, BR_FLOOD | BR_MCAST_FLOOD, NULL, NULL);
- if (err)
- return err;
+ /* Notify the port driver to set its configurable flags in a way that
+ * matches the initial settings of a bridge port.
+ */
+ dsa_port_change_brport_flags(dp, true);
/* Here the interface is already bridged. Reflect the current
* configuration so that drivers can program their chips accordingly.
@@ -158,7 +179,7 @@ int dsa_port_bridge_join(struct dsa_port
/* The bridging is rolled back on error */
if (err) {
- dsa_port_bridge_flags(dp, 0, NULL, NULL);
+ dsa_port_change_brport_flags(dp, false);
dp->bridge_dev = NULL;
}
@@ -184,8 +205,18 @@ void dsa_port_bridge_leave(struct dsa_po
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, NULL);
+ /* Configure the port for standalone mode (no address learning,
+ * flood everything).
+ * The bridge only emits SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS events
+ * when the user requests it through netlink or sysfs, but not
+ * automatically at port join or leave, so we need to handle resetting
+ * the brport flags ourselves. But we even prefer it that way, because
+ * otherwise, some setups might never get the notification they need,
+ * for example, when a port leaves a LAG that offloads the bridge,
+ * it becomes standalone, but as far as the bridge is concerned, no
+ * port ever left.
+ */
+ dsa_port_change_brport_flags(dp, false);
/* 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