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Commit a64e1a45 authored by Sujith Manoharan's avatar Sujith Manoharan Committed by John W. Linville
Browse files

ath9k: Fix RX interrupt mitigation 



The threshold values for RX interrupt mitigation
are different for AR9003 and AR9002 families.

Signed-off-by: default avatarSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 7f6d7407

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

+10 −2
Original line number Diff line number Diff line
@@ -358,6 +358,14 @@ static void ath9k_hw_init_config(struct ath_hw *ah) 


	ah->config.rx_intr_mitigation = true;



	if (AR_SREV_9300_20_OR_LATER(ah)) {

		ah->config.rimt_last = 500;

		ah->config.rimt_first = 2000;

	} else {

		ah->config.rimt_last = 250;

		ah->config.rimt_first = 700;

	}



	/*

	 * We need this for PCI devices only (Cardbus, PCI, miniPCI)

	 * _and_ if on non-uniprocessor systems (Multiprocessor/HT).
@@ -1876,8 +1884,8 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan, 
		REG_WRITE(ah, AR_OBS, 8);



	if (ah->config.rx_intr_mitigation) {

		REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, 500);

		REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, 2000);

		REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, ah->config.rimt_last);

		REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, ah->config.rimt_first);

	}



	if (ah->config.tx_intr_mitigation) {

drivers/net/wireless/ath/ath9k/hw.h

+2 −0
Original line number Diff line number Diff line
@@ -310,6 +310,8 @@ struct ath9k_ops_config { 
	u8 max_txtrig_level;

	u16 ani_poll_interval; /* ANI poll interval in ms */

	u16 hw_hang_checks;

	u16 rimt_first;

	u16 rimt_last;



	/* Platform specific config */

	u32 aspm_l1_fix;