From 0603143e47a34d0485a13fd7f46e56a97e687e34 Mon Sep 17 00:00:00 2001 From: Rajkumar Manoharan 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 Signed-off-by: John W. Linville --- 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 8b09a8239c1c..b1ced2a76da3 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 f4a6a4450ba8..10282e2bcdc9 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 7b553f6a97b1..49137f477b05 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); -- 2.20.1