diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-agn-rs.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-agn-rs.c | 113 |
1 files changed, 112 insertions, 1 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c index a4563389bad..f8eed92c1ad 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c @@ -301,7 +301,19 @@ static int rs_tl_turn_on_agg_for_tid(struct iwl_priv *priv, struct ieee80211_sta *sta) { int ret = -EAGAIN; - u32 load = rs_tl_get_load(lq_data, tid); + u32 load; + + /* + * Don't create TX aggregation sessions when in high + * BT traffic, as they would just be disrupted by BT. + */ + if (priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH) { + IWL_ERR(priv, "BT traffic (%d), no aggregation allowed\n", + priv->bt_traffic_load); + return ret; + } + + load = rs_tl_get_load(lq_data, tid); if (load > IWL_AGG_LOAD_THRESHOLD) { IWL_DEBUG_HT(priv, "Starting Tx agg: STA: %pM tid: %d\n", @@ -1286,6 +1298,27 @@ static int rs_move_legacy_other(struct iwl_priv *priv, int ret = 0; u8 update_search_tbl_counter = 0; + switch (priv->bt_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_LEGACY_SWITCH_ANTENNA2) + tbl->action = IWL_LEGACY_SWITCH_ANTENNA1; + break; + case IWL_BT_COEX_TRAFFIC_LOAD_HIGH: + case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS: + /* avoid antenna B and MIMO */ + if (tbl->action >= IWL_LEGACY_SWITCH_ANTENNA2 && + tbl->action != IWL_LEGACY_SWITCH_SISO) + tbl->action = IWL_SISO_SWITCH_ANTENNA1; + break; + default: + IWL_ERR(priv, "Invalid BT load %d", priv->bt_traffic_load); + break; + } + if (!iwl_ht_enabled(priv)) /* stay in Legacy */ tbl->action = IWL_LEGACY_SWITCH_ANTENNA1; @@ -1425,6 +1458,27 @@ static int rs_move_siso_to_other(struct iwl_priv *priv, u8 update_search_tbl_counter = 0; int ret; + switch (priv->bt_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_ANTENNA1; + break; + case IWL_BT_COEX_TRAFFIC_LOAD_HIGH: + case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS: + /* avoid antenna B and MIMO */ + if (tbl->action >= IWL_SISO_SWITCH_ANTENNA2 && + tbl->action != IWL_SISO_SWITCH_GI) + tbl->action = IWL_SISO_SWITCH_ANTENNA1; + break; + default: + IWL_ERR(priv, "Invalid BT load %d", priv->bt_traffic_load); + break; + } + if (iwl_tx_ant_restriction(priv) == IWL_ANT_OK_SINGLE && tbl->action > IWL_SISO_SWITCH_ANTENNA2) { /* stay in SISO */ @@ -1564,6 +1618,27 @@ static int rs_move_mimo2_to_other(struct iwl_priv *priv, u8 update_search_tbl_counter = 0; int ret; + switch (priv->bt_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_MIMO3_ABC) + tbl->action = IWL_SISO_SWITCH_ANTENNA1; + case IWL_BT_COEX_TRAFFIC_LOAD_LOW: + /* avoid antenna B unless MIMO */ + if (tbl->action == IWL_MIMO2_SWITCH_ANTENNA2) + tbl->action = IWL_MIMO2_SWITCH_ANTENNA1; + else if (tbl->action == IWL_MIMO2_SWITCH_SISO_B) + tbl->action = IWL_MIMO2_SWITCH_SISO_A; + break; + default: + IWL_ERR(priv, "Invalid BT load %d", priv->bt_traffic_load); + break; + } + if ((iwl_tx_ant_restriction(priv) == IWL_ANT_OK_SINGLE) && (tbl->action < IWL_MIMO2_SWITCH_SISO_A || tbl->action > IWL_MIMO2_SWITCH_SISO_C)) { @@ -1706,6 +1781,29 @@ static int rs_move_mimo3_to_other(struct iwl_priv *priv, int ret; u8 update_search_tbl_counter = 0; + switch (priv->bt_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_MIMO2_AB || + tbl->action == IWL_MIMO3_SWITCH_MIMO2_AC || + tbl->action == IWL_MIMO3_SWITCH_MIMO2_BC) + tbl->action = IWL_MIMO3_SWITCH_SISO_A; + 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_A; + else if (tbl->action == IWL_MIMO3_SWITCH_ANTENNA2) + tbl->action = IWL_MIMO3_SWITCH_ANTENNA1; + break; + default: + IWL_ERR(priv, "Invalid BT load %d", priv->bt_traffic_load); + break; + } + if ((iwl_tx_ant_restriction(priv) == IWL_ANT_OK_SINGLE) && (tbl->action < IWL_MIMO3_SWITCH_SISO_A || tbl->action > IWL_MIMO3_SWITCH_SISO_C)) { @@ -2234,6 +2332,19 @@ static void rs_rate_scale_perform(struct iwl_priv *priv, if (iwl_tx_ant_restriction(priv) != IWL_ANT_OK_MULTI && (is_mimo2(tbl->lq_type) || is_mimo3(tbl->lq_type))) scale_action = -1; + + if (lq_sta->last_bt_traffic > priv->bt_traffic_load) { + lq_sta->last_bt_traffic = priv->bt_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 < priv->bt_traffic_load) { + lq_sta->last_bt_traffic = priv->bt_traffic_load; + scale_action = -1; + } + switch (scale_action) { case -1: /* Decrease starting rate, update uCode's rate table */ |