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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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36
net/mac80211/driver-trace.h
View File

@@ -191,31 +191,55 @@ TRACE_EVENT(drv_bss_info_changed,
)
);
TRACE_EVENT(drv_prepare_multicast,
TP_PROTO(struct ieee80211_local *local, int mc_count, u64 ret),
TP_ARGS(local, mc_count, ret),
TP_STRUCT__entry(
LOCAL_ENTRY
__field(int, mc_count)
__field(u64, ret)
),
TP_fast_assign(
LOCAL_ASSIGN;
__entry->mc_count = mc_count;
__entry->ret = ret;
),
TP_printk(
LOCAL_PR_FMT " prepare mc (%d): %llx",
LOCAL_PR_ARG, __entry->mc_count,
(unsigned long long) __entry->ret
)
);
TRACE_EVENT(drv_configure_filter,
TP_PROTO(struct ieee80211_local *local,
unsigned int changed_flags,
unsigned int *total_flags,
int mc_count),
u64 multicast),
TP_ARGS(local, changed_flags, total_flags, mc_count),
TP_ARGS(local, changed_flags, total_flags, multicast),
TP_STRUCT__entry(
LOCAL_ENTRY
__field(unsigned int, changed)
__field(unsigned int, total)
__field(int, mc)
__field(u64, multicast)
),
TP_fast_assign(
LOCAL_ASSIGN;
__entry->changed = changed_flags;
__entry->total = *total_flags;
__entry->mc = mc_count;
__entry->multicast = multicast;
),
TP_printk(
LOCAL_PR_FMT " changed:%#x total:%#x mc:%d",
LOCAL_PR_ARG, __entry->changed, __entry->total, __entry->mc
LOCAL_PR_FMT " changed:%#x total:%#x",
LOCAL_PR_ARG, __entry->changed, __entry->total
)
);