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@xxxxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/mac.c | 10 ++++++----
1 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c
index 7bbf502..0e425cb 100644
--- a/drivers/net/wireless/ath/ath9k/mac.c
+++ b/drivers/net/wireless/ath/ath9k/mac.c
@@ -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)
--
1.6.3.3
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