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path: root/drivers/net/wireless/iwlwifi/mvm/rs.c
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Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/rs.c')
-rw-r--r--drivers/net/wireless/iwlwifi/mvm/rs.c171
1 files changed, 152 insertions, 19 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index b99fe3163866..b328a988c130 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -401,24 +401,29 @@ static int rs_tl_turn_on_agg_for_tid(struct iwl_mvm *mvm,
load = rs_tl_get_load(lq_data, tid);
- 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);
- ret = ieee80211_start_tx_ba_session(sta, tid, 5000);
- if (ret == -EAGAIN) {
- /*
- * driver and mac80211 is out of sync
- * this might be cause by reloading firmware
- * stop the tx ba session here
- */
- IWL_ERR(mvm, "Fail start Tx agg on tid: %d\n",
- tid);
- ieee80211_stop_tx_ba_session(sta, tid);
- }
- } else {
- IWL_DEBUG_HT(mvm,
- "Aggregation not enabled for tid %d because load = %u\n",
- tid, load);
+ /*
+ * 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;
+ }
+
+ IWL_DEBUG_HT(mvm, "Starting Tx agg: STA: %pM tid: %d\n",
+ sta->addr, tid);
+ ret = ieee80211_start_tx_ba_session(sta, tid, 5000);
+ if (ret == -EAGAIN) {
+ /*
+ * driver and mac80211 is out of sync
+ * this might be cause by reloading firmware
+ * stop the tx ba session here
+ */
+ IWL_ERR(mvm, "Fail start Tx agg on tid: %d\n",
+ tid);
+ ieee80211_stop_tx_ba_session(sta, tid);
}
return ret;
}
@@ -1519,6 +1524,29 @@ 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 +1560,9 @@ 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 +1684,28 @@ 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 +1843,28 @@ 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 +2376,32 @@ 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 */
@@ -2783,6 +2883,13 @@ 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)
@@ -3081,3 +3188,29 @@ void iwl_mvm_rate_control_unregister(void)
{
ieee80211_rate_control_unregister(&rs_mvm_ops);
}
+
+/**
+ * iwl_mvm_tx_protection - Gets LQ command, change it to enable/disable
+ * Tx protection, according to this rquest and previous requests,
+ * and send the LQ command.
+ * @lq: The LQ command
+ * @mvmsta: The station
+ * @enable: Enable Tx protection?
+ */
+int iwl_mvm_tx_protection(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq,
+ struct iwl_mvm_sta *mvmsta, bool enable)
+{
+ lockdep_assert_held(&mvm->mutex);
+
+ if (enable) {
+ if (mvmsta->tx_protection == 0)
+ lq->flags |= LQ_FLAG_SET_STA_TLC_RTS_MSK;
+ mvmsta->tx_protection++;
+ } else {
+ mvmsta->tx_protection--;
+ if (mvmsta->tx_protection == 0)
+ lq->flags &= ~LQ_FLAG_SET_STA_TLC_RTS_MSK;
+ }
+
+ return iwl_mvm_send_lq_cmd(mvm, lq, CMD_ASYNC, false);
+}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.