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mac80211: allow configure_filter callback to sleep

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Over time, a whole bunch of drivers have come up
with their own scheme to delay the configure_filter
operation to a workqueue. To be able to simplify
things, allow configure_filter to sleep, and add
a new prepare_multicast callback that drivers that
need the multicast address list implement. This new
callback must be atomic, but most drivers either
don't care or just calculate a hash which can be
done atomically and then uploaded to the hardware
non-atomically.

A cursory look suggests that at76c50x-usb, ar9170,
mwl8k (which is actually very broken now), rt2x00,
wl1251, wl1271 and zd1211 should make use of this
new capability.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg
2009-08-17 16:16:53 +02:00
committed by John W. Linville
parent ea416a793d
commit 3ac64beecd
28 changed files with 298 additions and 170 deletions
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26
net/mac80211/driver-ops.h
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@@ -55,16 +55,32 @@ static inline void drv_bss_info_changed(struct ieee80211_local *local,
trace_drv_bss_info_changed(local, vif, info, changed);
}
static inline void drv_configure_filter(struct ieee80211_local *local,
unsigned int changed_flags,
unsigned int *total_flags,
static inline u64 drv_prepare_multicast(struct ieee80211_local *local,
int mc_count,
struct dev_addr_list *mc_list)
{
u64 ret = 0;
if (local->ops->prepare_multicast)
ret = local->ops->prepare_multicast(&local->hw, mc_count,
mc_list);
trace_drv_prepare_multicast(local, mc_count, ret);
return ret;
}
static inline void drv_configure_filter(struct ieee80211_local *local,
unsigned int changed_flags,
unsigned int *total_flags,
u64 multicast)
{
might_sleep();
local->ops->configure_filter(&local->hw, changed_flags, total_flags,
mc_count, mc_list);
multicast);
trace_drv_configure_filter(local, changed_flags, total_flags,
mc_count);
multicast);
}
static inline int drv_set_tim(struct ieee80211_local *local,