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ath9k: Fix RX interrupt mitigation 

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

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith Manoharan 2014-01-23 08:20:30 +05:30 committed by John W. Linville
parent 7f6d740753
commit a64e1a4506
2 changed files with 12 additions and 2 deletions
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12
drivers/net/wireless/ath/ath9k/hw.c
View File

@ -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) {

2
drivers/net/wireless/ath/ath9k/hw.h
View File

@ -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;