From 0603143e47a34d0485a13fd7f46e56a97e687e34 Mon Sep 17 00:00:00 2001
From: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Date: Mon, 4 Jun 2012 16:28:36 +0530
Subject: [PATCH] ath9k: BT coex performance tuning for AR9462
Use smaller aggregation limit and increasing aggregation threshold
for osla that could improve wlan performance when there is HID profile.
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
drivers/net/wireless/ath/ath9k/ar9003_mci.c | 3 --
drivers/net/wireless/ath/ath9k/ar9003_mci.h | 1 -
drivers/net/wireless/ath/ath9k/mci.c | 54 +++++++++++++--------
3 files changed, 35 insertions(+), 23 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mci.c b/drivers/net/wireless/ath/ath9k/ar9003_mci.c
index 8b09a8239c1c4..b1ced2a76da33 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_mci.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mci.c
@@ -1381,9 +1381,6 @@ u32 ar9003_mci_state(struct ath_hw *ah, u32 state_type, u32 *p_data)
case MCI_STATE_NEED_FTP_STOMP:
value = !(mci->config & ATH_MCI_CONFIG_DISABLE_FTP_STOMP);
break;
- case MCI_STATE_NEED_TUNING:
- value = !(mci->config & ATH_MCI_CONFIG_DISABLE_TUNING);
- break;
default:
break;
}
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mci.h b/drivers/net/wireless/ath/ath9k/ar9003_mci.h
index f4a6a4450ba89..10282e2bcdc93 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_mci.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mci.h
@@ -212,7 +212,6 @@ enum mci_state_type {
MCI_STATE_SET_CONCUR_TX_PRI,
MCI_STATE_RECOVER_RX,
MCI_STATE_NEED_FTP_STOMP,
- MCI_STATE_NEED_TUNING,
MCI_STATE_DEBUG,
MCI_STATE_MAX
};
diff --git a/drivers/net/wireless/ath/ath9k/mci.c b/drivers/net/wireless/ath/ath9k/mci.c
index 7b553f6a97b13..49137f477b05f 100644
--- a/drivers/net/wireless/ath/ath9k/mci.c
+++ b/drivers/net/wireless/ath/ath9k/mci.c
@@ -116,42 +116,58 @@ static void ath_mci_update_scheme(struct ath_softc *sc)
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_btcoex *btcoex = &sc->btcoex;
struct ath_mci_profile *mci = &btcoex->mci;
+ struct ath9k_hw_mci *mci_hw = &sc->sc_ah->btcoex_hw.mci;
struct ath_mci_profile_info *info;
u32 num_profile = NUM_PROF(mci);
+ if (mci_hw->config & ATH_MCI_CONFIG_DISABLE_TUNING)
+ goto skip_tuning;
+
if (num_profile == 1) {
info = list_first_entry(&mci->info,
struct ath_mci_profile_info,
list);
- if (mci->num_sco && info->T == 12) {
- mci->aggr_limit = 8;
+ if (mci->num_sco) {
+ if (info->T == 12)
+ mci->aggr_limit = 8;
+ else if (info->T == 6) {
+ mci->aggr_limit = 6;
+ btcoex->duty_cycle = 30;
+ }
ath_dbg(common, MCI,
- "Single SCO, aggregation limit 2 ms\n");
- } else if ((info->type == MCI_GPM_COEX_PROFILE_BNEP) &&
- !info->master) {
- btcoex->btcoex_period = 60;
+ "Single SCO, aggregation limit %d 1/4 ms\n",
+ mci->aggr_limit);
+ } else if (mci->num_pan || mci->num_other_acl) {
+ /*
+ * For single PAN/FTP profile, allocate 35% for BT
+ * to improve WLAN throughput.
+ */
+ btcoex->duty_cycle = 35;
+ btcoex->btcoex_period = 53;
ath_dbg(common, MCI,
- "Single slave PAN/FTP, bt period 60 ms\n");
- } else if ((info->type == MCI_GPM_COEX_PROFILE_HID) &&
- (info->T > 0 && info->T < 50) &&
- (info->A > 1 || info->W > 1)) {
+ "Single PAN/FTP bt period %d ms dutycycle %d\n",
+ btcoex->duty_cycle, btcoex->btcoex_period);
+ } else if (mci->num_hid) {
btcoex->duty_cycle = 30;
- mci->aggr_limit = 8;
+ mci->aggr_limit = 6;
ath_dbg(common, MCI,
"Multiple attempt/timeout single HID "
- "aggregation limit 2 ms dutycycle 30%%\n");
+ "aggregation limit 1.5 ms dutycycle 30%%\n");
}
- } else if ((num_profile == 2) && (mci->num_hid == 2)) {
- btcoex->duty_cycle = 30;
- mci->aggr_limit = 8;
- ath_dbg(common, MCI,
- "Two HIDs aggregation limit 2 ms dutycycle 30%%\n");
- } else if (num_profile > 3) {
+ } else if (num_profile == 2) {
+ if (mci->num_hid == 2)
+ btcoex->duty_cycle = 30;
mci->aggr_limit = 6;
ath_dbg(common, MCI,
- "Three or more profiles aggregation limit 1.5 ms\n");
+ "Two BT profiles aggr limit 1.5 ms dutycycle %d%%\n",
+ btcoex->duty_cycle);
+ } else if (num_profile >= 3) {
+ mci->aggr_limit = 4;
+ ath_dbg(common, MCI,
+ "Three or more profiles aggregation limit 1 ms\n");
}
+skip_tuning:
if (IS_CHAN_2GHZ(sc->sc_ah->curchan)) {
if (IS_CHAN_HT(sc->sc_ah->curchan))
ath_mci_adjust_aggr_limit(btcoex);
--
GitLab