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mac80211: introduce hw config change flags

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This makes mac80211 notify the driver which configuration
actually changed, e.g. channel etc.

No driver changes, this is just plumbing, driver authors are
expected to act on this if they want to.

Also remove the HW CONFIG debug printk, it's incorrect, often
we configure something else.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg
2008-10-09 12:18:51 +02:00
committed by John W. Linville
parent 0f4ac38b59
commit e8975581f6
24 changed files with 116 additions and 60 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
net/mac80211/iface.c
View File

@@ -65,7 +65,7 @@ static int ieee80211_open(struct net_device *dev)
struct ieee80211_if_init_conf conf;
u32 changed = 0;
int res;
bool need_hw_reconfig = 0;
u32 hw_reconf_flags = 0;
u8 null_addr[ETH_ALEN] = {0};
/* fail early if user set an invalid address */
@@ -152,7 +152,8 @@ static int ieee80211_open(struct net_device *dev)
res = local->ops->start(local_to_hw(local));
if (res)
goto err_del_bss;
need_hw_reconfig = 1;
/* we're brought up, everything changes */
hw_reconf_flags = ~0;
ieee80211_led_radio(local, local->hw.conf.radio_enabled);
}
@@ -198,8 +199,10 @@ static int ieee80211_open(struct net_device *dev)
/* must be before the call to ieee80211_configure_filter */
local->monitors++;
if (local->monitors == 1)
if (local->monitors == 1) {
local->hw.conf.flags |= IEEE80211_CONF_RADIOTAP;
hw_reconf_flags |= IEEE80211_CONF_CHANGE_RADIOTAP;
}
if (sdata->u.mntr_flags & MONITOR_FLAG_FCSFAIL)
local->fif_fcsfail++;
@@ -279,8 +282,8 @@ static int ieee80211_open(struct net_device *dev)
atomic_inc(&local->iff_promiscs);
local->open_count++;
if (need_hw_reconfig) {
ieee80211_hw_config(local);
if (hw_reconf_flags) {
ieee80211_hw_config(local, hw_reconf_flags);
/*
* set default queue parameters so drivers don't
* need to initialise the hardware if the hardware
@@ -322,6 +325,7 @@ static int ieee80211_stop(struct net_device *dev)
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_init_conf conf;
struct sta_info *sta;
u32 hw_reconf_flags = 0;
/*
* Stop TX on this interface first.
@@ -405,8 +409,10 @@ static int ieee80211_stop(struct net_device *dev)
}
local->monitors--;
if (local->monitors == 0)
if (local->monitors == 0) {
local->hw.conf.flags &= ~IEEE80211_CONF_RADIOTAP;
hw_reconf_flags |= IEEE80211_CONF_CHANGE_RADIOTAP;
}
if (sdata->u.mntr_flags & MONITOR_FLAG_FCSFAIL)
local->fif_fcsfail--;
@@ -504,8 +510,15 @@ static int ieee80211_stop(struct net_device *dev)
tasklet_disable(&local->tx_pending_tasklet);
tasklet_disable(&local->tasklet);
/* no reconfiguring after stop! */
hw_reconf_flags = 0;
}
/* do after stop to avoid reconfiguring when we stop anyway */
if (hw_reconf_flags)
ieee80211_hw_config(local, hw_reconf_flags);
return 0;
}