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iwlagn: update write pointers in iwl_irq_tasklet() 

Follow-up to "update write pointers for all tx queues after wakeup"; that
patch changed iwl_irq_tasklet_legacy(), but not iwl_irq_tasklet(), so
newer devices were not covered.

Comments from original patch:

Wakeup interrupt has been updating write pointers (indexes, actually) only
for tx queues 0-5.  This is adequate just for 3945, but inadequate for other
devices, all of which have more tx queues.  Now updating all tx/command queues,
so device can be aware of all new tx and host commands enqueued while
device was asleep.

This can potentially improve data traffic bandwidth and/or latency.

Signed-off-by: Ben Cahill <ben.m.cahill@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Ben Cahill 2009-11-06 14:53:01 -08:00 committed by John W. Linville
parent a7e6611034
commit 8756990f99
1 changed files with 3 additions and 6 deletions
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9
drivers/net/wireless/iwlwifi/iwl-agn.c
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@ -1084,6 +1084,7 @@ static void iwl_irq_tasklet(struct iwl_priv *priv)
u32 inta = 0; u32 inta = 0;
u32 handled = 0; u32 handled = 0;
unsigned long flags; unsigned long flags;
u32 i;
#ifdef CONFIG_IWLWIFI_DEBUG #ifdef CONFIG_IWLWIFI_DEBUG
u32 inta_mask; u32 inta_mask;
#endif #endif
@ -1194,12 +1195,8 @@ static void iwl_irq_tasklet(struct iwl_priv *priv)
if (inta & CSR_INT_BIT_WAKEUP) { if (inta & CSR_INT_BIT_WAKEUP) {
IWL_DEBUG_ISR(priv, "Wakeup interrupt\n"); IWL_DEBUG_ISR(priv, "Wakeup interrupt\n");
iwl_rx_queue_update_write_ptr(priv, &priv->rxq); iwl_rx_queue_update_write_ptr(priv, &priv->rxq);
iwl_txq_update_write_ptr(priv, &priv->txq[0]); for (i = 0; i < priv->hw_params.max_txq_num; i++)
iwl_txq_update_write_ptr(priv, &priv->txq[1]); iwl_txq_update_write_ptr(priv, &priv->txq[i]);
iwl_txq_update_write_ptr(priv, &priv->txq[2]);
iwl_txq_update_write_ptr(priv, &priv->txq[3]);
iwl_txq_update_write_ptr(priv, &priv->txq[4]);
iwl_txq_update_write_ptr(priv, &priv->txq[5]);
priv->isr_stats.wakeup++; priv->isr_stats.wakeup++;