From: Sujith Manoharan Date: Thu, 23 Jan 2014 02:50:30 +0000 (+0530) Subject: ath9k: Fix RX interrupt mitigation X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=a64e1a45060f41423c89768f4f7bef3283678539;p=linux-beck.git ath9k: Fix RX interrupt mitigation The threshold values for RX interrupt mitigation are different for AR9003 and AR9002 families. Signed-off-by: Sujith Manoharan Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index ce41658a6003..fbf43c05713f 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -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) { diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h index e766399bdcda..0acd4b5a4892 100644 --- a/drivers/net/wireless/ath/ath9k/hw.h +++ b/drivers/net/wireless/ath/ath9k/hw.h @@ -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;