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Code

minor locking change

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7436 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2007-06-01 18:25:33 +00:00
parent 3a12acdf2c
commit 01022a7d55
1 changed files with 67 additions and 0 deletions
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67
package/madwifi/patches/301-tx_locking.patch Normal file
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@ -0,0 +1,67 @@
diff -ur madwifi.old/ath/if_ath.c madwifi.dev/ath/if_ath.c
--- madwifi.old/ath/if_ath.c 2007-06-01 16:44:25.170898128 +0200
+++ madwifi.dev/ath/if_ath.c 2007-06-01 20:01:24.205131816 +0200
@@ -2555,7 +2555,7 @@
/* NB: use this lock to protect an->an_ff_txbuf in athff_can_aggregate()
* call too.
*/
- ATH_TXQ_LOCK_IRQ(txq);
+ ATH_TXQ_LOCK_BH(txq);
if (athff_can_aggregate(sc, eh, an, skb, vap->iv_fragthreshold, &ff_flush)) {
if (an->an_tx_ffbuf[skb->priority]) { /* i.e., frame on the staging queue */
bf = an->an_tx_ffbuf[skb->priority];
@@ -2563,6 +2563,7 @@
/* get (and remove) the frame from staging queue */
TAILQ_REMOVE(&txq->axq_stageq, bf, bf_stagelist);
an->an_tx_ffbuf[skb->priority] = NULL;
+ ATH_TXQ_UNLOCK_BH(txq);
/*
* chain skbs and add FF magic
@@ -2585,7 +2586,7 @@
*/
ATH_HARDSTART_GET_TX_BUF_WITH_LOCK;
if (bf == NULL) {
- ATH_TXQ_UNLOCK_IRQ_EARLY(txq);
+ ATH_TXQ_UNLOCK_BH(txq);
goto hardstart_fail;
}
DPRINTF(sc, ATH_DEBUG_XMIT | ATH_DEBUG_FF,
@@ -2597,8 +2598,7 @@
an->an_tx_ffbuf[skb->priority] = bf;
TAILQ_INSERT_HEAD(&txq->axq_stageq, bf, bf_stagelist);
-
- ATH_TXQ_UNLOCK_IRQ_EARLY(txq);
+ ATH_TXQ_UNLOCK_BH(txq);
return 0;
}
@@ -2650,12 +2650,12 @@
ATH_HARDSTART_GET_TX_BUF_WITH_LOCK;
if (bf == NULL) {
- ATH_TXQ_UNLOCK_IRQ_EARLY(txq);
+ ATH_TXQ_UNLOCK_BH(txq);
goto hardstart_fail;
}
+ ATH_TXQ_UNLOCK_BH(txq);
}
- ATH_TXQ_UNLOCK_IRQ(txq);
ff_bypass:
diff -ur madwifi.old/ath/if_athvar.h madwifi.dev/ath/if_athvar.h
--- madwifi.old/ath/if_athvar.h 2007-06-01 16:44:25.149901320 +0200
+++ madwifi.dev/ath/if_athvar.h 2007-06-01 20:00:06.916881416 +0200
@@ -484,6 +484,8 @@
#define ATH_TXQ_INTR_PERIOD 5 /* axq_intrcnt period for intr gen */
#define ATH_TXQ_LOCK_INIT(_tq) spin_lock_init(&(_tq)->axq_lock)
#define ATH_TXQ_LOCK_DESTROY(_tq)
+#define ATH_TXQ_LOCK_BH(_tq) spin_lock_bh(&(_tq)->axq_lock);
+#define ATH_TXQ_UNLOCK_BH(_tq) spin_unlock_bh(&(_tq)->axq_lock);
#define ATH_TXQ_LOCK_IRQ(_tq) do { \
unsigned long __axq_lockflags; \
spin_lock_irqsave(&(_tq)->axq_lock, __axq_lockflags);