summaryrefslogtreecommitdiff
path: root/net/hsr
diff options
context:
space:
mode:
Diffstat (limited to 'net/hsr')
-rw-r--r--net/hsr/hsr_debugfs.c5
-rw-r--r--net/hsr/hsr_device.c64
-rw-r--r--net/hsr/hsr_device.h3
-rw-r--r--net/hsr/hsr_framereg.c3
-rw-r--r--net/hsr/hsr_main.c3
-rw-r--r--net/hsr/hsr_main.h1
-rw-r--r--net/hsr/hsr_netlink.c49
-rw-r--r--net/hsr/hsr_slave.c63
-rw-r--r--net/hsr/hsr_slave.h2
9 files changed, 95 insertions, 98 deletions
diff --git a/net/hsr/hsr_debugfs.c b/net/hsr/hsr_debugfs.c
index d5f709b940ff..9787ef11ca71 100644
--- a/net/hsr/hsr_debugfs.c
+++ b/net/hsr/hsr_debugfs.c
@@ -113,7 +113,6 @@ void hsr_debugfs_init(struct hsr_priv *priv, struct net_device *hsr_dev)
priv->node_tbl_root = NULL;
return;
}
- priv->node_tbl_file = de;
}
/* hsr_debugfs_term - Tear down debugfs intrastructure
@@ -125,9 +124,7 @@ void hsr_debugfs_init(struct hsr_priv *priv, struct net_device *hsr_dev)
void
hsr_debugfs_term(struct hsr_priv *priv)
{
- debugfs_remove(priv->node_tbl_file);
- priv->node_tbl_file = NULL;
- debugfs_remove(priv->node_tbl_root);
+ debugfs_remove_recursive(priv->node_tbl_root);
priv->node_tbl_root = NULL;
}
diff --git a/net/hsr/hsr_device.c b/net/hsr/hsr_device.c
index c7bd6c49fadf..fc7027314ad8 100644
--- a/net/hsr/hsr_device.c
+++ b/net/hsr/hsr_device.c
@@ -57,24 +57,19 @@ static void hsr_set_operstate(struct hsr_port *master, bool has_carrier)
static bool hsr_check_carrier(struct hsr_port *master)
{
struct hsr_port *port;
- bool has_carrier;
- has_carrier = false;
+ ASSERT_RTNL();
- rcu_read_lock();
- hsr_for_each_port(master->hsr, port)
+ hsr_for_each_port(master->hsr, port) {
if (port->type != HSR_PT_MASTER && is_slave_up(port->dev)) {
- has_carrier = true;
- break;
+ netif_carrier_on(master->dev);
+ return true;
}
- rcu_read_unlock();
+ }
- if (has_carrier)
- netif_carrier_on(master->dev);
- else
- netif_carrier_off(master->dev);
+ netif_carrier_off(master->dev);
- return has_carrier;
+ return false;
}
static void hsr_check_announce(struct net_device *hsr_dev,
@@ -118,11 +113,9 @@ int hsr_get_max_mtu(struct hsr_priv *hsr)
struct hsr_port *port;
mtu_max = ETH_DATA_LEN;
- rcu_read_lock();
hsr_for_each_port(hsr, port)
if (port->type != HSR_PT_MASTER)
mtu_max = min(port->dev->mtu, mtu_max);
- rcu_read_unlock();
if (mtu_max < HSR_HLEN)
return 0;
@@ -157,7 +150,6 @@ static int hsr_dev_open(struct net_device *dev)
hsr = netdev_priv(dev);
designation = '\0';
- rcu_read_lock();
hsr_for_each_port(hsr, port) {
if (port->type == HSR_PT_MASTER)
continue;
@@ -175,7 +167,6 @@ static int hsr_dev_open(struct net_device *dev)
netdev_warn(dev, "Slave %c (%s) is not up; please bring it up to get a fully working HSR network\n",
designation, port->dev->name);
}
- rcu_read_unlock();
if (designation == '\0')
netdev_warn(dev, "No slave devices configured\n");
@@ -350,22 +341,33 @@ static void hsr_announce(struct timer_list *t)
rcu_read_unlock();
}
+static void hsr_del_ports(struct hsr_priv *hsr)
+{
+ struct hsr_port *port;
+
+ port = hsr_port_get_hsr(hsr, HSR_PT_SLAVE_A);
+ if (port)
+ hsr_del_port(port);
+
+ port = hsr_port_get_hsr(hsr, HSR_PT_SLAVE_B);
+ if (port)
+ hsr_del_port(port);
+
+ port = hsr_port_get_hsr(hsr, HSR_PT_MASTER);
+ if (port)
+ hsr_del_port(port);
+}
+
/* This has to be called after all the readers are gone.
* Otherwise we would have to check the return value of
* hsr_port_get_hsr().
*/
static void hsr_dev_destroy(struct net_device *hsr_dev)
{
- struct hsr_priv *hsr;
- struct hsr_port *port;
- struct hsr_port *tmp;
-
- hsr = netdev_priv(hsr_dev);
+ struct hsr_priv *hsr = netdev_priv(hsr_dev);
hsr_debugfs_term(hsr);
-
- list_for_each_entry_safe(port, tmp, &hsr->ports, port_list)
- hsr_del_port(port);
+ hsr_del_ports(hsr);
del_timer_sync(&hsr->prune_timer);
del_timer_sync(&hsr->announce_timer);
@@ -431,11 +433,10 @@ static const unsigned char def_multicast_addr[ETH_ALEN] __aligned(2) = {
};
int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2],
- unsigned char multicast_spec, u8 protocol_version)
+ unsigned char multicast_spec, u8 protocol_version,
+ struct netlink_ext_ack *extack)
{
struct hsr_priv *hsr;
- struct hsr_port *port;
- struct hsr_port *tmp;
int res;
hsr = netdev_priv(hsr_dev);
@@ -478,7 +479,7 @@ int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2],
/* Make sure the 1st call to netif_carrier_on() gets through */
netif_carrier_off(hsr_dev);
- res = hsr_add_port(hsr, hsr_dev, HSR_PT_MASTER);
+ res = hsr_add_port(hsr, hsr_dev, HSR_PT_MASTER, extack);
if (res)
goto err_add_master;
@@ -486,11 +487,11 @@ int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2],
if (res)
goto err_unregister;
- res = hsr_add_port(hsr, slave[0], HSR_PT_SLAVE_A);
+ res = hsr_add_port(hsr, slave[0], HSR_PT_SLAVE_A, extack);
if (res)
goto err_add_slaves;
- res = hsr_add_port(hsr, slave[1], HSR_PT_SLAVE_B);
+ res = hsr_add_port(hsr, slave[1], HSR_PT_SLAVE_B, extack);
if (res)
goto err_add_slaves;
@@ -502,8 +503,7 @@ int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2],
err_add_slaves:
unregister_netdevice(hsr_dev);
err_unregister:
- list_for_each_entry_safe(port, tmp, &hsr->ports, port_list)
- hsr_del_port(port);
+ hsr_del_ports(hsr);
err_add_master:
hsr_del_self_node(hsr);
diff --git a/net/hsr/hsr_device.h b/net/hsr/hsr_device.h
index 6d7759c4f5f9..a099d7de7e79 100644
--- a/net/hsr/hsr_device.h
+++ b/net/hsr/hsr_device.h
@@ -13,7 +13,8 @@
void hsr_dev_setup(struct net_device *dev);
int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2],
- unsigned char multicast_spec, u8 protocol_version);
+ unsigned char multicast_spec, u8 protocol_version,
+ struct netlink_ext_ack *extack);
void hsr_check_carrier_and_operstate(struct hsr_priv *hsr);
bool is_hsr_master(struct net_device *dev);
int hsr_get_max_mtu(struct hsr_priv *hsr);
diff --git a/net/hsr/hsr_framereg.c b/net/hsr/hsr_framereg.c
index a64bb64935a6..03b891904314 100644
--- a/net/hsr/hsr_framereg.c
+++ b/net/hsr/hsr_framereg.c
@@ -318,7 +318,8 @@ void hsr_addr_subst_dest(struct hsr_node *node_src, struct sk_buff *skb,
node_dst = find_node_by_addr_A(&port->hsr->node_db,
eth_hdr(skb)->h_dest);
if (!node_dst) {
- WARN_ONCE(1, "%s: Unknown node\n", __func__);
+ if (net_ratelimit())
+ netdev_err(skb->dev, "%s: Unknown node\n", __func__);
return;
}
if (port->type != node_dst->addr_B_port)
diff --git a/net/hsr/hsr_main.c b/net/hsr/hsr_main.c
index 9e389accbfc7..26d6c39f24e1 100644
--- a/net/hsr/hsr_main.c
+++ b/net/hsr/hsr_main.c
@@ -85,7 +85,8 @@ static int hsr_netdev_notify(struct notifier_block *nb, unsigned long event,
master->dev->mtu = mtu_max;
break;
case NETDEV_UNREGISTER:
- hsr_del_port(port);
+ if (!is_hsr_master(dev))
+ hsr_del_port(port);
break;
case NETDEV_PRE_TYPE_CHANGE:
/* HSR works only on Ethernet devices. Refuse slave to change
diff --git a/net/hsr/hsr_main.h b/net/hsr/hsr_main.h
index 754d84b217f0..7321cf8d6d2c 100644
--- a/net/hsr/hsr_main.h
+++ b/net/hsr/hsr_main.h
@@ -166,7 +166,6 @@ struct hsr_priv {
unsigned char sup_multicast_addr[ETH_ALEN];
#ifdef CONFIG_DEBUG_FS
struct dentry *node_tbl_root;
- struct dentry *node_tbl_file;
#endif
};
diff --git a/net/hsr/hsr_netlink.c b/net/hsr/hsr_netlink.c
index fae21c863b1f..5465a395da04 100644
--- a/net/hsr/hsr_netlink.c
+++ b/net/hsr/hsr_netlink.c
@@ -35,26 +35,34 @@ static int hsr_newlink(struct net *src_net, struct net_device *dev,
unsigned char multicast_spec, hsr_version;
if (!data) {
- netdev_info(dev, "HSR: No slave devices specified\n");
+ NL_SET_ERR_MSG_MOD(extack, "No slave devices specified");
return -EINVAL;
}
if (!data[IFLA_HSR_SLAVE1]) {
- netdev_info(dev, "HSR: Slave1 device not specified\n");
+ NL_SET_ERR_MSG_MOD(extack, "Slave1 device not specified");
return -EINVAL;
}
link[0] = __dev_get_by_index(src_net,
nla_get_u32(data[IFLA_HSR_SLAVE1]));
+ if (!link[0]) {
+ NL_SET_ERR_MSG_MOD(extack, "Slave1 does not exist");
+ return -EINVAL;
+ }
if (!data[IFLA_HSR_SLAVE2]) {
- netdev_info(dev, "HSR: Slave2 device not specified\n");
+ NL_SET_ERR_MSG_MOD(extack, "Slave2 device not specified");
return -EINVAL;
}
link[1] = __dev_get_by_index(src_net,
nla_get_u32(data[IFLA_HSR_SLAVE2]));
+ if (!link[1]) {
+ NL_SET_ERR_MSG_MOD(extack, "Slave2 does not exist");
+ return -EINVAL;
+ }
- if (!link[0] || !link[1])
- return -ENODEV;
- if (link[0] == link[1])
+ if (link[0] == link[1]) {
+ NL_SET_ERR_MSG_MOD(extack, "Slave1 and Slave2 are same");
return -EINVAL;
+ }
if (!data[IFLA_HSR_MULTICAST_SPEC])
multicast_spec = 0;
@@ -66,34 +74,25 @@ static int hsr_newlink(struct net *src_net, struct net_device *dev,
else
hsr_version = nla_get_u8(data[IFLA_HSR_VERSION]);
- return hsr_dev_finalize(dev, link, multicast_spec, hsr_version);
+ return hsr_dev_finalize(dev, link, multicast_spec, hsr_version, extack);
}
static int hsr_fill_info(struct sk_buff *skb, const struct net_device *dev)
{
- struct hsr_priv *hsr;
+ struct hsr_priv *hsr = netdev_priv(dev);
struct hsr_port *port;
- int res;
-
- hsr = netdev_priv(dev);
-
- res = 0;
- rcu_read_lock();
port = hsr_port_get_hsr(hsr, HSR_PT_SLAVE_A);
- if (port)
- res = nla_put_u32(skb, IFLA_HSR_SLAVE1, port->dev->ifindex);
- rcu_read_unlock();
- if (res)
- goto nla_put_failure;
+ if (port) {
+ if (nla_put_u32(skb, IFLA_HSR_SLAVE1, port->dev->ifindex))
+ goto nla_put_failure;
+ }
- rcu_read_lock();
port = hsr_port_get_hsr(hsr, HSR_PT_SLAVE_B);
- if (port)
- res = nla_put_u32(skb, IFLA_HSR_SLAVE2, port->dev->ifindex);
- rcu_read_unlock();
- if (res)
- goto nla_put_failure;
+ if (port) {
+ if (nla_put_u32(skb, IFLA_HSR_SLAVE2, port->dev->ifindex))
+ goto nla_put_failure;
+ }
if (nla_put(skb, IFLA_HSR_SUPERVISION_ADDR, ETH_ALEN,
hsr->sup_multicast_addr) ||
diff --git a/net/hsr/hsr_slave.c b/net/hsr/hsr_slave.c
index a9104d42aafb..f4b9f7a3ce51 100644
--- a/net/hsr/hsr_slave.c
+++ b/net/hsr/hsr_slave.c
@@ -25,7 +25,6 @@ static rx_handler_result_t hsr_handle_frame(struct sk_buff **pskb)
return RX_HANDLER_PASS;
}
- rcu_read_lock(); /* hsr->node_db, hsr->ports */
port = hsr_port_get_rcu(skb->dev);
if (!port)
goto finish_pass;
@@ -45,11 +44,9 @@ static rx_handler_result_t hsr_handle_frame(struct sk_buff **pskb)
hsr_forward_skb(skb, port);
finish_consume:
- rcu_read_unlock(); /* hsr->node_db, hsr->ports */
return RX_HANDLER_CONSUMED;
finish_pass:
- rcu_read_unlock(); /* hsr->node_db, hsr->ports */
return RX_HANDLER_PASS;
}
@@ -58,33 +55,37 @@ bool hsr_port_exists(const struct net_device *dev)
return rcu_access_pointer(dev->rx_handler) == hsr_handle_frame;
}
-static int hsr_check_dev_ok(struct net_device *dev)
+static int hsr_check_dev_ok(struct net_device *dev,
+ struct netlink_ext_ack *extack)
{
/* Don't allow HSR on non-ethernet like devices */
if ((dev->flags & IFF_LOOPBACK) || dev->type != ARPHRD_ETHER ||
dev->addr_len != ETH_ALEN) {
- netdev_info(dev, "Cannot use loopback or non-ethernet device as HSR slave.\n");
+ NL_SET_ERR_MSG_MOD(extack, "Cannot use loopback or non-ethernet device as HSR slave.");
return -EINVAL;
}
/* Don't allow enslaving hsr devices */
if (is_hsr_master(dev)) {
- netdev_info(dev, "Cannot create trees of HSR devices.\n");
+ NL_SET_ERR_MSG_MOD(extack,
+ "Cannot create trees of HSR devices.");
return -EINVAL;
}
if (hsr_port_exists(dev)) {
- netdev_info(dev, "This device is already a HSR slave.\n");
+ NL_SET_ERR_MSG_MOD(extack,
+ "This device is already a HSR slave.");
return -EINVAL;
}
if (is_vlan_dev(dev)) {
- netdev_info(dev, "HSR on top of VLAN is not yet supported in this driver.\n");
+ NL_SET_ERR_MSG_MOD(extack, "HSR on top of VLAN is not yet supported in this driver.");
return -EINVAL;
}
if (dev->priv_flags & IFF_DONT_BRIDGE) {
- netdev_info(dev, "This device does not support bridging.\n");
+ NL_SET_ERR_MSG_MOD(extack,
+ "This device does not support bridging.");
return -EOPNOTSUPP;
}
@@ -96,19 +97,25 @@ static int hsr_check_dev_ok(struct net_device *dev)
}
/* Setup device to be added to the HSR bridge. */
-static int hsr_portdev_setup(struct net_device *dev, struct hsr_port *port)
+static int hsr_portdev_setup(struct hsr_priv *hsr, struct net_device *dev,
+ struct hsr_port *port,
+ struct netlink_ext_ack *extack)
+
{
+ struct net_device *hsr_dev;
+ struct hsr_port *master;
int res;
- dev_hold(dev);
res = dev_set_promiscuity(dev, 1);
if (res)
- goto fail_promiscuity;
+ return res;
- /* FIXME:
- * What does net device "adjacency" mean? Should we do
- * res = netdev_master_upper_dev_link(port->dev, port->hsr->dev); ?
- */
+ master = hsr_port_get_hsr(hsr, HSR_PT_MASTER);
+ hsr_dev = master->dev;
+
+ res = netdev_upper_dev_link(dev, hsr_dev, extack);
+ if (res)
+ goto fail_upper_dev_link;
res = netdev_rx_handler_register(dev, hsr_handle_frame, port);
if (res)
@@ -118,21 +125,20 @@ static int hsr_portdev_setup(struct net_device *dev, struct hsr_port *port)
return 0;
fail_rx_handler:
+ netdev_upper_dev_unlink(dev, hsr_dev);
+fail_upper_dev_link:
dev_set_promiscuity(dev, -1);
-fail_promiscuity:
- dev_put(dev);
-
return res;
}
int hsr_add_port(struct hsr_priv *hsr, struct net_device *dev,
- enum hsr_port_type type)
+ enum hsr_port_type type, struct netlink_ext_ack *extack)
{
struct hsr_port *port, *master;
int res;
if (type != HSR_PT_MASTER) {
- res = hsr_check_dev_ok(dev);
+ res = hsr_check_dev_ok(dev, extack);
if (res)
return res;
}
@@ -150,7 +156,7 @@ int hsr_add_port(struct hsr_priv *hsr, struct net_device *dev,
port->type = type;
if (type != HSR_PT_MASTER) {
- res = hsr_portdev_setup(dev, port);
+ res = hsr_portdev_setup(hsr, dev, port, extack);
if (res)
goto fail_dev_setup;
}
@@ -179,21 +185,14 @@ void hsr_del_port(struct hsr_port *port)
list_del_rcu(&port->port_list);
if (port != master) {
- if (master) {
- netdev_update_features(master->dev);
- dev_set_mtu(master->dev, hsr_get_max_mtu(hsr));
- }
+ netdev_update_features(master->dev);
+ dev_set_mtu(master->dev, hsr_get_max_mtu(hsr));
netdev_rx_handler_unregister(port->dev);
dev_set_promiscuity(port->dev, -1);
+ netdev_upper_dev_unlink(port->dev, master->dev);
}
- /* FIXME?
- * netdev_upper_dev_unlink(port->dev, port->hsr->dev);
- */
-
synchronize_rcu();
- if (port != master)
- dev_put(port->dev);
kfree(port);
}
diff --git a/net/hsr/hsr_slave.h b/net/hsr/hsr_slave.h
index 64b549529592..8953ea279ce9 100644
--- a/net/hsr/hsr_slave.h
+++ b/net/hsr/hsr_slave.h
@@ -13,7 +13,7 @@
#include "hsr_main.h"
int hsr_add_port(struct hsr_priv *hsr, struct net_device *dev,
- enum hsr_port_type pt);
+ enum hsr_port_type pt, struct netlink_ext_ack *extack);
void hsr_del_port(struct hsr_port *port);
bool hsr_port_exists(const struct net_device *dev);
generated by cgit (git 2.34.1) at 2024-06-04 21:55:07 +0000