diff options
| author | Luciano Coelho <luciano.coelho@intel.com> | 2014-06-13 17:30:06 +0400 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2014-06-23 16:22:27 +0400 |
| commit | 26da23b6950cd1aaae86caa541eb4befc9e96e1d (patch) | |
| tree | 416747bf14a3c29d5a44300c474435335396f12d /net/mac80211/util.c | |
| parent | cca07b00a56d6ddd339e457dfd1a229222b9acf5 (diff) | |
| download | linux-26da23b6950cd1aaae86caa541eb4befc9e96e1d.tar.xz | |
mac80211: add functions to stop and wake all queues assigned to a vif
In some cases we may want to stop the queues of a single vif (for
instance during a channel-switch). Add a function that stops all the
queues that are assigned to a vif. If a queue is assigned to more
than one vif, the corresponding netdev subqueue of the other vif(s)
will also be stopped. If the HW doesn't set the
IEEE80211_HW_QUEUE_CONTROL flag, then all queues are stopped.
Also add a corresponding function to wake the queues of a vif back.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/util.c')
| -rw-r--r-- | net/mac80211/util.c | 41 |
1 files changed, 35 insertions, 6 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 4e8513cfdae5..42d448d765b4 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -552,13 +552,11 @@ void ieee80211_wake_queues(struct ieee80211_hw *hw) } EXPORT_SYMBOL(ieee80211_wake_queues); -void ieee80211_flush_queues(struct ieee80211_local *local, - struct ieee80211_sub_if_data *sdata) +static unsigned int +ieee80211_get_vif_queues(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata) { - u32 queues; - - if (!local->ops->flush) - return; + unsigned int queues; if (sdata && local->hw.flags & IEEE80211_HW_QUEUE_CONTROL) { int ac; @@ -574,6 +572,19 @@ void ieee80211_flush_queues(struct ieee80211_local *local, queues = BIT(local->hw.queues) - 1; } + return queues; +} + +void ieee80211_flush_queues(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata) +{ + unsigned int queues; + + if (!local->ops->flush) + return; + + queues = ieee80211_get_vif_queues(local, sdata); + ieee80211_stop_queues_by_reason(&local->hw, queues, IEEE80211_QUEUE_STOP_REASON_FLUSH, false); @@ -585,6 +596,24 @@ void ieee80211_flush_queues(struct ieee80211_local *local, false); } +void ieee80211_stop_vif_queues(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + enum queue_stop_reason reason) +{ + ieee80211_stop_queues_by_reason(&local->hw, + ieee80211_get_vif_queues(local, sdata), + reason, true); +} + +void ieee80211_wake_vif_queues(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + enum queue_stop_reason reason) +{ + ieee80211_wake_queues_by_reason(&local->hw, + ieee80211_get_vif_queues(local, sdata), + reason, true); +} + static void __iterate_active_interfaces(struct ieee80211_local *local, u32 iter_flags, void (*iterator)(void *data, u8 *mac, |