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Commit c6af8074 authored by Stanislaw Gruszka's avatar Stanislaw Gruszka Committed by John W. Linville
Browse files

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: default avatarJake Edge <jake@lwn.net>
Signed-off-by: default avatarStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 42ce8943

drivers/net/wireless/iwlegacy/common.h

+22 −0
Original line number Diff line number Diff line
@@ -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