unimore/kernel-hacking-2024-linux-steffo
unimore/kernel-hacking-2024-linux-steffo
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libertas: only enable mesh when interface is active

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Previously, the mesh was running whenever the appropriate hardware
and firmware was present.

Now we only run the mesh when the interface is running.

Also simplifies interface management a little.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Daniel Drake 2011-07-20 17:53:56 +01:00 committed by John W. Linville
parent 3db4f98938
commit d931998669
5 changed files with 11 additions and 25 deletions
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2
drivers/net/wireless/libertas/dev.h
View file

@ -44,9 +44,7 @@ struct lbs_private {
/* Mesh */
struct net_device *mesh_dev; /* Virtual device */
#ifdef CONFIG_LIBERTAS_MESH
u32 mesh_connect_status;
struct lbs_mesh_stats mstats;
int mesh_open;
uint16_t mesh_tlv;
u8 mesh_ssid[IEEE80211_MAX_SSID_LEN + 1];
u8 mesh_ssid_len;

2
drivers/net/wireless/libertas/main.c
View file

@ -511,7 +511,7 @@ static int lbs_thread(void *data)
if (priv->connect_status == LBS_CONNECTED)
netif_wake_queue(priv->dev);
if (priv->mesh_dev &&
lbs_mesh_connected(priv))
netif_running(priv->mesh_dev))
netif_wake_queue(priv->mesh_dev);
}
}

23
drivers/net/wireless/libertas/mesh.c
View file

@ -269,17 +269,11 @@ static ssize_t lbs_mesh_set(struct device *dev,
{
struct lbs_private *priv = to_net_dev(dev)->ml_priv;
int enable;
int ret, action = CMD_ACT_MESH_CONFIG_STOP;
sscanf(buf, "%x", &enable);
enable = !!enable;
if (enable == !!priv->mesh_dev)
return count;
if (enable)
action = CMD_ACT_MESH_CONFIG_START;
ret = lbs_mesh_config(priv, action, priv->channel);
if (ret)
return ret;
if (enable)
lbs_add_mesh(priv);
@ -822,8 +816,6 @@ int lbs_init_mesh(struct lbs_private *priv)
lbs_deb_enter(LBS_DEB_MESH);
priv->mesh_connect_status = LBS_DISCONNECTED;
/* Determine mesh_fw_ver from fwrelease and fwcapinfo */
/* 5.0.16p0 9.0.0.p0 is known to NOT support any mesh */
/* 5.110.22 have mesh command with 0xa3 command id */
@ -863,6 +855,8 @@ int lbs_init_mesh(struct lbs_private *priv)
priv->mesh_tlv = 0;
}
/* Stop meshing until interface is brought up */
lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_STOP, priv->channel);
if (priv->mesh_tlv) {
sprintf(priv->mesh_ssid, "mesh");
@ -909,10 +903,9 @@ static int lbs_mesh_stop(struct net_device *dev)
struct lbs_private *priv = dev->ml_priv;
lbs_deb_enter(LBS_DEB_MESH);
spin_lock_irq(&priv->driver_lock);
lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_STOP, priv->channel);
priv->mesh_open = 0;
priv->mesh_connect_status = LBS_DISCONNECTED;
spin_lock_irq(&priv->driver_lock);
netif_stop_queue(dev);
netif_carrier_off(dev);
@ -942,18 +935,20 @@ static int lbs_mesh_dev_open(struct net_device *dev)
if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR) {
ret = -EBUSY;
spin_unlock_irq(&priv->driver_lock);
goto out;
}
priv->mesh_open = 1;
priv->mesh_connect_status = LBS_CONNECTED;
netif_carrier_on(dev);
if (!priv->tx_pending_len)
netif_wake_queue(dev);
out:
spin_unlock_irq(&priv->driver_lock);
ret = lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, priv->channel);
out:
lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret);
return ret;
}

7
drivers/net/wireless/libertas/mesh.h
View file

@ -63,11 +63,6 @@ void lbs_mesh_ethtool_get_strings(struct net_device *dev,
uint32_t stringset, uint8_t *s);
/* Accessors */
#define lbs_mesh_open(priv) (priv->mesh_open)
#define lbs_mesh_connected(priv) (priv->mesh_connect_status == LBS_CONNECTED)
#else
#define lbs_init_mesh(priv)
@ -77,8 +72,6 @@ void lbs_mesh_ethtool_get_strings(struct net_device *dev,
#define lbs_mesh_set_dev(priv, dev, rxpd) (dev)
#define lbs_mesh_set_txpd(priv, dev, txpd)
#define lbs_mesh_config(priv, enable, chan)
#define lbs_mesh_open(priv) (0)
#define lbs_mesh_connected(priv) (0)
#endif

2
drivers/net/wireless/libertas/tx.c
View file

@ -198,7 +198,7 @@ void lbs_send_tx_feedback(struct lbs_private *priv, u32 try_count)
if (priv->connect_status == LBS_CONNECTED)
netif_wake_queue(priv->dev);
if (priv->mesh_dev && lbs_mesh_connected(priv))
if (priv->mesh_dev && netif_running(priv->mesh_dev))
netif_wake_queue(priv->mesh_dev);
}
EXPORT_SYMBOL_GPL(lbs_send_tx_feedback);