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Commit 5bea4006 authored by Luis R. Rodriguez's avatar Luis R. Rodriguez Committed by John W. Linville
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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: default avatarLuis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 5d5d44d9

drivers/net/wireless/ath/ath9k/mac.c

+6 −4
Original line number Diff line number Diff line
@@ -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;

		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)