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ath9k: BT coex performance tuning for AR9462

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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>
This commit is contained in:
Rajkumar Manoharan 2012-06-04 16:28:36 +05:30 committed by John W. Linville
parent 99922a45e9
commit 0603143e47
3 changed files with 35 additions and 23 deletions
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3
drivers/net/wireless/ath/ath9k/ar9003_mci.c
View File

@ -1381,9 +1381,6 @@ u32 ar9003_mci_state(struct ath_hw *ah, u32 state_type, u32 *p_data)
case MCI_STATE_NEED_FTP_STOMP: case MCI_STATE_NEED_FTP_STOMP:
value = !(mci->config & ATH_MCI_CONFIG_DISABLE_FTP_STOMP); value = !(mci->config & ATH_MCI_CONFIG_DISABLE_FTP_STOMP);
break; break;
case MCI_STATE_NEED_TUNING:
value = !(mci->config & ATH_MCI_CONFIG_DISABLE_TUNING);
break;
default: default:
break; break;
} }

1
drivers/net/wireless/ath/ath9k/ar9003_mci.h
View File

@ -212,7 +212,6 @@ enum mci_state_type {
MCI_STATE_SET_CONCUR_TX_PRI, MCI_STATE_SET_CONCUR_TX_PRI,
MCI_STATE_RECOVER_RX, MCI_STATE_RECOVER_RX,
MCI_STATE_NEED_FTP_STOMP, MCI_STATE_NEED_FTP_STOMP,
MCI_STATE_NEED_TUNING,
MCI_STATE_DEBUG, MCI_STATE_DEBUG,
MCI_STATE_MAX MCI_STATE_MAX
}; };

54
drivers/net/wireless/ath/ath9k/mci.c
View File

@ -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_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_btcoex *btcoex = &sc->btcoex; struct ath_btcoex *btcoex = &sc->btcoex;
struct ath_mci_profile *mci = &btcoex->mci; 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; struct ath_mci_profile_info *info;
u32 num_profile = NUM_PROF(mci); u32 num_profile = NUM_PROF(mci);
if (mci_hw->config & ATH_MCI_CONFIG_DISABLE_TUNING)
goto skip_tuning;
if (num_profile == 1) { if (num_profile == 1) {
info = list_first_entry(&mci->info, info = list_first_entry(&mci->info,
struct ath_mci_profile_info, struct ath_mci_profile_info,
list); list);
if (mci->num_sco && info->T == 12) { if (mci->num_sco) {
mci->aggr_limit = 8; 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, ath_dbg(common, MCI,
"Single SCO, aggregation limit 2 ms\n"); "Single SCO, aggregation limit %d 1/4 ms\n",
} else if ((info->type == MCI_GPM_COEX_PROFILE_BNEP) && mci->aggr_limit);
!info->master) { } else if (mci->num_pan || mci->num_other_acl) {
btcoex->btcoex_period = 60; /*
* 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, ath_dbg(common, MCI,
"Single slave PAN/FTP, bt period 60 ms\n"); "Single PAN/FTP bt period %d ms dutycycle %d\n",
} else if ((info->type == MCI_GPM_COEX_PROFILE_HID) && btcoex->duty_cycle, btcoex->btcoex_period);
(info->T > 0 && info->T < 50) && } else if (mci->num_hid) {
(info->A > 1 || info->W > 1)) {
btcoex->duty_cycle = 30; btcoex->duty_cycle = 30;
mci->aggr_limit = 8; mci->aggr_limit = 6;
ath_dbg(common, MCI, ath_dbg(common, MCI,
"Multiple attempt/timeout single HID " "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)) { } else if (num_profile == 2) {
btcoex->duty_cycle = 30; if (mci->num_hid == 2)
mci->aggr_limit = 8; btcoex->duty_cycle = 30;
ath_dbg(common, MCI,
"Two HIDs aggregation limit 2 ms dutycycle 30%%\n");
} else if (num_profile > 3) {
mci->aggr_limit = 6; mci->aggr_limit = 6;
ath_dbg(common, MCI, 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_2GHZ(sc->sc_ah->curchan)) {
if (IS_CHAN_HT(sc->sc_ah->curchan)) if (IS_CHAN_HT(sc->sc_ah->curchan))
ath_mci_adjust_aggr_limit(btcoex); ath_mci_adjust_aggr_limit(btcoex);