ar71xx: reclaim the 'user_property' partition on WHR-* boards

[openwrt.git] / target / linux / generic / files / drivers / net / phy / swconfig.c

diff --git a/target/linux/generic/files/drivers/net/phy/swconfig.c b/target/linux/generic/files/drivers/net/phy/swconfig.c
index 16afea0..e772c94 100644 (file)
--- a/target/linux/generic/files/drivers/net/phy/swconfig.c
+++ b/target/linux/generic/files/drivers/net/phy/swconfig.c
@@ -31,6 +31,10 @@
 #define DPRINTF(...) do {} while(0)
 #endif
 
+#define SWCONFIG_DEVNAME       "switch%d"
+
+#include "swconfig_leds.c"
+
 MODULE_AUTHOR("Felix Fietkau <nbd@openwrt.org>");
 MODULE_LICENSE("GPL");
 
@@ -125,6 +129,62 @@ swconfig_get_pvid(struct switch_dev *dev, const struct switch_attr *attr, struct
        return dev->ops->get_port_pvid(dev, val->port_vlan, &val->value.i);
 }
 
+static const char *
+swconfig_speed_str(enum switch_port_speed speed)
+{
+       switch (speed) {
+       case SWITCH_PORT_SPEED_10:
+               return "10baseT";
+       case SWITCH_PORT_SPEED_100:
+               return "100baseT";
+       case SWITCH_PORT_SPEED_1000:
+               return "1000baseT";
+       default:
+               break;
+       }
+
+       return "unknown";
+}
+
+static int
+swconfig_get_link(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
+{
+       struct switch_port_link link;
+       int len;
+       int ret;
+
+       if (val->port_vlan >= dev->ports)
+               return -EINVAL;
+
+       if (!dev->ops->get_port_link)
+               return -EOPNOTSUPP;
+
+       memset(&link, 0, sizeof(link));
+       ret = dev->ops->get_port_link(dev, val->port_vlan, &link);
+       if (ret)
+               return ret;
+
+       memset(dev->buf, 0, sizeof(dev->buf));
+
+       if (link.link)
+               len = snprintf(dev->buf, sizeof(dev->buf),
+                              "port:%d link:up speed:%s %s-duplex %s%s%s",
+                              val->port_vlan,
+                              swconfig_speed_str(link.speed),
+                              link.duplex ? "full" : "half",
+                              link.tx_flow ? "txflow ": "",
+                              link.rx_flow ?   "rxflow " : "",
+                              link.aneg ? "auto" : "");
+       else
+               len = snprintf(dev->buf, sizeof(dev->buf), "port:%d link:down",
+                              val->port_vlan);
+
+       val->value.s = dev->buf;
+       val->len = len;
+
+       return 0;
+}
+
 static int
 swconfig_apply_config(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 {
@@ -156,6 +216,7 @@ enum vlan_defaults {
 
 enum port_defaults {
        PORT_PVID,
+       PORT_LINK,
 };
 
 static struct switch_attr default_global[] = {
@@ -180,6 +241,13 @@ static struct switch_attr default_port[] = {
                .description = "Primary VLAN ID",
                .set = swconfig_set_pvid,
                .get = swconfig_get_pvid,
+       },
+       [PORT_LINK] = {
+               .type = SWITCH_TYPE_STRING,
+               .name = "link",
+               .description = "Get port link information",
+               .set = NULL,
+               .get = swconfig_get_link,
        }
 };
 
@@ -193,6 +261,17 @@ static struct switch_attr default_vlan[] = {
        },
 };
 
+static const struct switch_attr *
+swconfig_find_attr_by_name(const struct switch_attrlist *alist, const char *name)
+{
+       int i;
+
+       for (i = 0; i < alist->n_attr; i++)
+               if (strcmp(name, alist->attr[i].name) == 0)
+                       return &alist->attr[i];
+
+       return NULL;
+}
 
 static void swconfig_defaults_init(struct switch_dev *dev)
 {
@@ -208,6 +287,10 @@ static void swconfig_defaults_init(struct switch_dev *dev)
        if (ops->get_port_pvid || ops->set_port_pvid)
                set_bit(PORT_PVID, &dev->def_port);
 
+       if (ops->get_port_link &&
+           !swconfig_find_attr_by_name(&ops->attr_port, "link"))
+               set_bit(PORT_LINK, &dev->def_port);
+
        /* always present, can be no-op */
        set_bit(GLOBAL_APPLY, &dev->def_global);
        set_bit(GLOBAL_RESET, &dev->def_global);
@@ -270,7 +353,7 @@ swconfig_get_dev(struct genl_info *info)
                break;
        }
        if (dev)
-               spin_lock(&dev->lock);
+               mutex_lock(&dev->sw_mutex);
        else
                DPRINTF("device %d not found\n", id);
        swconfig_unlock();
@@ -281,7 +364,7 @@ done:
 static inline void
 swconfig_put_dev(struct switch_dev *dev)
 {
-       spin_unlock(&dev->lock);
+       mutex_unlock(&dev->sw_mutex);
 }
 
 static int
@@ -760,8 +843,9 @@ swconfig_send_switch(struct sk_buff *msg, u32 pid, u32 seq, int flags,
                return -1;
 
        NLA_PUT_U32(msg, SWITCH_ATTR_ID, dev->id);
-       NLA_PUT_STRING(msg, SWITCH_ATTR_NAME, dev->name);
        NLA_PUT_STRING(msg, SWITCH_ATTR_DEV_NAME, dev->devname);
+       NLA_PUT_STRING(msg, SWITCH_ATTR_ALIAS, dev->alias);
+       NLA_PUT_STRING(msg, SWITCH_ATTR_NAME, dev->name);
        NLA_PUT_U32(msg, SWITCH_ATTR_VLANS, dev->vlans);
        NLA_PUT_U32(msg, SWITCH_ATTR_PORTS, dev->ports);
        NLA_PUT_U32(msg, SWITCH_ATTR_CPU_PORT, dev->cpu_port);
@@ -857,13 +941,19 @@ static struct genl_ops swconfig_ops[] = {
 int
 register_switch(struct switch_dev *dev, struct net_device *netdev)
 {
+       struct switch_dev *sdev;
+       const int max_switches = 8 * sizeof(unsigned long);
+       unsigned long in_use = 0;
+       int err;
+       int i;
+
        INIT_LIST_HEAD(&dev->dev_list);
        if (netdev) {
                dev->netdev = netdev;
-               if (!dev->devname)
-                       dev->devname = netdev->name;
+               if (!dev->alias)
+                       dev->alias = netdev->name;
        }
-       BUG_ON(!dev->devname);
+       BUG_ON(!dev->alias);
 
        if (dev->ports > 0) {
                dev->portbuf = kzalloc(sizeof(struct switch_port) * dev->ports,
@@ -871,13 +961,36 @@ register_switch(struct switch_dev *dev, struct net_device *netdev)
                if (!dev->portbuf)
                        return -ENOMEM;
        }
-       dev->id = ++swdev_id;
        swconfig_defaults_init(dev);
-       spin_lock_init(&dev->lock);
+       mutex_init(&dev->sw_mutex);
        swconfig_lock();
+       dev->id = ++swdev_id;
+
+       list_for_each_entry(sdev, &swdevs, dev_list) {
+               if (!sscanf(sdev->devname, SWCONFIG_DEVNAME, &i))
+                       continue;
+               if (i < 0 || i > max_switches)
+                       continue;
+
+               set_bit(i, &in_use);
+       }
+       i = find_first_zero_bit(&in_use, max_switches);
+
+       if (i == max_switches) {
+               swconfig_unlock();
+               return -ENFILE;
+       }
+
+       /* fill device name */
+       snprintf(dev->devname, IFNAMSIZ, SWCONFIG_DEVNAME, i);
+
        list_add(&dev->dev_list, &swdevs);
        swconfig_unlock();
 
+       err = swconfig_create_led_trigger(dev);
+       if (err)
+               return err;
+
        return 0;
 }
 EXPORT_SYMBOL_GPL(register_switch);
@@ -885,12 +998,13 @@ EXPORT_SYMBOL_GPL(register_switch);
 void
 unregister_switch(struct switch_dev *dev)
 {
+       swconfig_destroy_led_trigger(dev);
        kfree(dev->portbuf);
-       spin_lock(&dev->lock);
+       mutex_lock(&dev->sw_mutex);
        swconfig_lock();
        list_del(&dev->dev_list);
        swconfig_unlock();
-       spin_unlock(&dev->lock);
+       mutex_unlock(&dev->sw_mutex);
 }
 EXPORT_SYMBOL_GPL(unregister_switch);