diff options
| author | Stanislaw Gruszka <sgruszka@redhat.com> | 2013-06-12 16:44:48 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2013-06-12 15:06:56 -0400 |
| commit | c6af8074fd3654b2a8d7b31304d686519b062e14 (patch) | |
| tree | e16bf5725825ba7ac83013811ea3ff9b1f0ff4ef | |
| parent | 42ce8943e14734dd388e6934fff31a11c1adad8f (diff) | |
iwlegacy: add il_{stop,wake}_queues_by_reason functions
Add functions that will stop/wake all queues. Make them safe
regarding multiple calls and when some ac are stopped/woke
independently.
Tested-by: Jake Edge <jake@lwn.net>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/net/wireless/iwlegacy/common.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlegacy/common.h b/drivers/net/wireless/iwlegacy/common.h index 67da89b39e1..83f8ed8a552 100644 --- a/drivers/net/wireless/iwlegacy/common.h +++ b/drivers/net/wireless/iwlegacy/common.h @@ -1299,6 +1299,8 @@ struct il_priv { /* queue refcounts */ #define IL_MAX_HW_QUEUES 32 unsigned long queue_stopped[BITS_TO_LONGS(IL_MAX_HW_QUEUES)]; +#define IL_STOP_REASON_PASSIVE 0 + unsigned long stop_reason; /* for each AC */ atomic_t queue_stop_count[4]; @@ -2291,6 +2293,26 @@ il_stop_queue(struct il_priv *il, struct il_tx_queue *txq) _il_stop_queue(il, ac); } +static inline void +il_wake_queues_by_reason(struct il_priv *il, int reason) +{ + u8 ac; + + if (test_and_clear_bit(reason, &il->stop_reason)) + for (ac = 0; ac < 4; ac++) + _il_wake_queue(il, ac); +} + +static inline void +il_stop_queues_by_reason(struct il_priv *il, int reason) +{ + u8 ac; + + if (!test_and_set_bit(reason, &il->stop_reason)) + for (ac = 0; ac < 4; ac++) + _il_stop_queue(il, ac); +} + #ifdef ieee80211_stop_queue #undef ieee80211_stop_queue #endif |