From 9e6e8a58e22d7f76cad62243460f21abc7b1dbcb Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Mon, 8 Sep 2014 16:45:58 +0000 Subject: [PATCH] ath9k: add some ani related stability / performance fixes Signed-off-by: Felix Fietkau Backport of r42443 SVN-Revision: 42444 --- .../mac80211/patches/300-pending_work.patch | 57 +++++++++++++++++++ .../patches/550-ath9k_entropy_from_adc.patch | 4 +- 2 files changed, 59 insertions(+), 2 deletions(-) diff --git a/package/kernel/mac80211/patches/300-pending_work.patch b/package/kernel/mac80211/patches/300-pending_work.patch index 5ffcf63378..6d1bc806c0 100644 --- a/package/kernel/mac80211/patches/300-pending_work.patch +++ b/package/kernel/mac80211/patches/300-pending_work.patch @@ -1,3 +1,33 @@ +commit 0fecedddd4a0945873db1bd230ec6a168b3cc4fe +Author: Felix Fietkau +Date: Mon Sep 8 18:35:08 2014 +0200 + + ath9k_hw: reduce ANI spur immunity setting on HT40 extension channel + + The cycpwr_thr1 value needs to be lower on the extension channel than on + the control channel, similar to how the register settings are programmed + in the initvals. + + Also drop the unnecessary check for HT40 - this register can always be + written. This patch has been reported to improve HT40 stability and + throughput in some environments. + + Signed-off-by: Felix Fietkau + +commit 30d7434ccb853b96de698a040888fa4dacd0cc19 +Author: Felix Fietkau +Date: Mon Sep 8 18:31:26 2014 +0200 + + Revert "ath9k_hw: reduce ANI firstep range for older chips" + + This reverts commit 09efc56345be4146ab9fc87a55c837ed5d6ea1ab + + I've received reports that this change is decreasing throughput in some + rare conditions on an AR9280 based device + + Cc: stable@vger.kernel.org + Signed-off-by: Felix Fietkau + commit 15ed54948f508ad1baad79c30050e2d29a21696d Author: Felix Fietkau Date: Fri Jul 25 16:18:03 2014 +0200 @@ -3109,3 +3139,30 @@ Date: Mon May 19 21:20:49 2014 +0200 if (!compat) compat = &sdata->vif.bss_conf.chandef; +--- a/drivers/net/wireless/ath/ath9k/ar5008_phy.c ++++ b/drivers/net/wireless/ath/ath9k/ar5008_phy.c +@@ -1004,9 +1004,11 @@ static bool ar5008_hw_ani_control_new(st + case ATH9K_ANI_FIRSTEP_LEVEL:{ + u32 level = param; + +- value = level; ++ value = level * 2; + REG_RMW_FIELD(ah, AR_PHY_FIND_SIG, + AR_PHY_FIND_SIG_FIRSTEP, value); ++ REG_RMW_FIELD(ah, AR_PHY_FIND_SIG_LOW, ++ AR_PHY_FIND_SIG_FIRSTEP_LOW, value); + + if (level != aniState->firstepLevel) { + ath_dbg(common, ANI, +@@ -1040,9 +1042,8 @@ static bool ar5008_hw_ani_control_new(st + REG_RMW_FIELD(ah, AR_PHY_TIMING5, + AR_PHY_TIMING5_CYCPWR_THR1, value); + +- if (IS_CHAN_HT40(ah->curchan)) +- REG_RMW_FIELD(ah, AR_PHY_EXT_CCA, +- AR_PHY_EXT_TIMING5_CYCPWR_THR1, value); ++ REG_RMW_FIELD(ah, AR_PHY_EXT_CCA, ++ AR_PHY_EXT_TIMING5_CYCPWR_THR1, value - 1); + + if (level != aniState->spurImmunityLevel) { + ath_dbg(common, ANI, diff --git a/package/kernel/mac80211/patches/550-ath9k_entropy_from_adc.patch b/package/kernel/mac80211/patches/550-ath9k_entropy_from_adc.patch index 757d7412ba..55472e5b35 100644 --- a/package/kernel/mac80211/patches/550-ath9k_entropy_from_adc.patch +++ b/package/kernel/mac80211/patches/550-ath9k_entropy_from_adc.patch @@ -110,7 +110,7 @@ static inline void ath9k_hw_set_bt_ant_diversity(struct ath_hw *ah, bool enable) --- a/drivers/net/wireless/ath/ath9k/ar5008_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar5008_phy.c -@@ -1231,9 +1231,30 @@ static void ar5008_hw_set_radar_conf(str +@@ -1232,9 +1232,30 @@ static void ar5008_hw_set_radar_conf(str conf->radar_inband = 8; } @@ -141,7 +141,7 @@ static const u32 ar5416_cca_regs[6] = { AR_PHY_CCA, AR_PHY_CH1_CCA, -@@ -1248,6 +1269,8 @@ int ar5008_hw_attach_phy_ops(struct ath_ +@@ -1249,6 +1270,8 @@ int ar5008_hw_attach_phy_ops(struct ath_ if (ret) return ret; -- 2.30.2