diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/rs.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/rs.c | 115 |
1 files changed, 114 insertions, 1 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c index 6a050c6..d6beec7 100644 --- a/drivers/net/wireless/iwlwifi/mvm/rs.c +++ b/drivers/net/wireless/iwlwifi/mvm/rs.c @@ -401,6 +401,17 @@ static int rs_tl_turn_on_agg_for_tid(struct iwl_mvm *mvm, load = rs_tl_get_load(lq_data, tid); + /* + * Don't create TX aggregation sessions when in high + * BT traffic, as they would just be disrupted by BT. + */ + if (BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD) >= 2) { + IWL_DEBUG_COEX(mvm, "BT traffic (%d), no aggregation allowed\n", + BT_MBOX_MSG(&mvm->last_bt_notif, + 3, TRAFFIC_LOAD)); + return ret; + } + if ((iwlwifi_mod_params.auto_agg) || (load > IWL_AGG_LOAD_THRESHOLD)) { IWL_DEBUG_HT(mvm, "Starting Tx agg: STA: %pM tid: %d\n", sta->addr, tid); @@ -1519,6 +1530,29 @@ static int rs_move_siso_to_other(struct iwl_mvm *mvm, u8 update_search_tbl_counter = 0; int ret; + switch (BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD)) { + case IWL_BT_COEX_TRAFFIC_LOAD_NONE: + /* nothing */ + break; + case IWL_BT_COEX_TRAFFIC_LOAD_LOW: + /* avoid antenna B unless MIMO */ + if (tbl->action == IWL_SISO_SWITCH_ANTENNA2) + tbl->action = IWL_SISO_SWITCH_MIMO2_AB; + break; + case IWL_BT_COEX_TRAFFIC_LOAD_HIGH: + case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS: + /* avoid antenna B and MIMO */ + valid_tx_ant = + first_antenna(iwl_fw_valid_tx_ant(mvm->fw)); + if (tbl->action != IWL_SISO_SWITCH_ANTENNA1) + tbl->action = IWL_SISO_SWITCH_ANTENNA1; + break; + default: + IWL_ERR(mvm, "Invalid BT load %d", + BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD)); + break; + } + start_action = tbl->action; while (1) { lq_sta->action_counter++; @@ -1532,7 +1566,9 @@ static int rs_move_siso_to_other(struct iwl_mvm *mvm, tx_chains_num <= 2)) break; - if (window->success_ratio >= IWL_RS_GOOD_RATIO) + if (window->success_ratio >= IWL_RS_GOOD_RATIO && + BT_MBOX_MSG(&mvm->last_bt_notif, 3, + TRAFFIC_LOAD) == 0) break; memcpy(search_tbl, tbl, sz); @@ -1654,6 +1690,28 @@ static int rs_move_mimo2_to_other(struct iwl_mvm *mvm, u8 update_search_tbl_counter = 0; int ret; + switch (BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD)) { + case IWL_BT_COEX_TRAFFIC_LOAD_NONE: + /* nothing */ + break; + case IWL_BT_COEX_TRAFFIC_LOAD_HIGH: + case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS: + /* avoid antenna B and MIMO */ + if (tbl->action != IWL_MIMO2_SWITCH_SISO_A) + tbl->action = IWL_MIMO2_SWITCH_SISO_A; + break; + case IWL_BT_COEX_TRAFFIC_LOAD_LOW: + /* avoid antenna B unless MIMO */ + if (tbl->action == IWL_MIMO2_SWITCH_SISO_B || + tbl->action == IWL_MIMO2_SWITCH_SISO_C) + tbl->action = IWL_MIMO2_SWITCH_SISO_A; + break; + default: + IWL_ERR(mvm, "Invalid BT load %d", + BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD)); + break; + } + start_action = tbl->action; while (1) { lq_sta->action_counter++; @@ -1791,6 +1849,28 @@ static int rs_move_mimo3_to_other(struct iwl_mvm *mvm, int ret; u8 update_search_tbl_counter = 0; + switch (BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD)) { + case IWL_BT_COEX_TRAFFIC_LOAD_NONE: + /* nothing */ + break; + case IWL_BT_COEX_TRAFFIC_LOAD_HIGH: + case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS: + /* avoid antenna B and MIMO */ + if (tbl->action != IWL_MIMO3_SWITCH_SISO_A) + tbl->action = IWL_MIMO3_SWITCH_SISO_A; + break; + case IWL_BT_COEX_TRAFFIC_LOAD_LOW: + /* avoid antenna B unless MIMO */ + if (tbl->action == IWL_MIMO3_SWITCH_SISO_B || + tbl->action == IWL_MIMO3_SWITCH_SISO_C) + tbl->action = IWL_MIMO3_SWITCH_SISO_A; + break; + default: + IWL_ERR(mvm, "Invalid BT load %d", + BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD)); + break; + } + start_action = tbl->action; while (1) { lq_sta->action_counter++; @@ -2302,6 +2382,32 @@ static void rs_rate_scale_perform(struct iwl_mvm *mvm, (current_tpt > (100 * tbl->expected_tpt[low])))) scale_action = 0; + if ((BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD) >= + IWL_BT_COEX_TRAFFIC_LOAD_HIGH) && + (is_mimo2(tbl->lq_type) || is_mimo3(tbl->lq_type))) { + if (lq_sta->last_bt_traffic > + BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD)) { + /* + * don't set scale_action, don't want to scale up if + * the rate scale doesn't otherwise think that is a + * good idea. + */ + } else if (lq_sta->last_bt_traffic <= + BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD)) { + scale_action = -1; + } + } + lq_sta->last_bt_traffic = + BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD); + + if ((BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD) >= + IWL_BT_COEX_TRAFFIC_LOAD_HIGH) && + (is_mimo2(tbl->lq_type) || is_mimo3(tbl->lq_type))) { + /* search for a new modulation */ + rs_stay_in_table(lq_sta, true); + goto lq_update; + } + switch (scale_action) { case -1: /* Decrease starting rate, update uCode's rate table */ @@ -2782,6 +2888,13 @@ static void rs_fill_link_cmd(struct iwl_mvm *mvm, lq_cmd->agg_time_limit = cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF); + + /* + * overwrite if needed, pass aggregation time limit + * to uCode in uSec - This is racy - but heh, at least it helps... + */ + if (mvm && BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD) >= 2) + lq_cmd->agg_time_limit = cpu_to_le16(1200); } static void *rs_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir) |
