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ath9k_hw: Fix TX interrupt mitigation settings 

TX interrupt mitigation reduces the number of interrupts
by addressing several interrupt actions (AR_IMR_TXOK,
AR_IMR_TXDESC) all in one interrupt so when enabling
it discard setting the other interrupts.

Without this TX interrupt mitigation would actually
increase the number of interrupts two-fold. We still
leave TX interrupt mitigation disabled as it is still
being tested.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Luis R. Rodriguez 2010-04-26 15:04:41 -04:00 committed by John W. Linville
parent 5d5d44d914
commit 5bea40069e
1 changed files with 6 additions and 4 deletions
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10
drivers/net/wireless/ath/ath9k/mac.c
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@ -878,10 +878,12 @@ enum ath9k_int ath9k_hw_set_interrupts(struct ath_hw *ah,
if (ints & ATH9K_INT_TX) {
if (ah->config.tx_intr_mitigation)
mask |= AR_IMR_TXMINTR | AR_IMR_TXINTM;
if (ah->txok_interrupt_mask)
mask |= AR_IMR_TXOK;
if (ah->txdesc_interrupt_mask)
mask |= AR_IMR_TXDESC;
else {
if (ah->txok_interrupt_mask)
mask |= AR_IMR_TXOK;
if (ah->txdesc_interrupt_mask)
mask |= AR_IMR_TXDESC;
}
if (ah->txerr_interrupt_mask)
mask |= AR_IMR_TXERR;
if (ah->txeol_interrupt_mask)