1 files changed, 49 insertions, 68 deletions

diff --git a/drivers/net/wireless/iwlwifi/mvm/power.c b/drivers/net/wireless/iwlwifi/mvm/power.c
index 5a92a4978795..9395ab2a1af2 100644
--- a/drivers/net/wireless/iwlwifi/mvm/power.c
+++ b/drivers/net/wireless/iwlwifi/mvm/power.c
@@ -22,7 +22,7 @@
  * USA
  *
  * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
+ * in the file called COPYING.
  *
  * Contact Information:
  *  Intel Linux Wireless <ilw@linux.intel.com>
@@ -75,23 +75,49 @@
 
 #define POWER_KEEP_ALIVE_PERIOD_SEC    25
 
-static void iwl_power_build_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
-				struct iwl_powertable_cmd *cmd)
+static void iwl_mvm_power_log(struct iwl_mvm *mvm,
+			      struct iwl_powertable_cmd *cmd)
+{
+	IWL_DEBUG_POWER(mvm,
+			"Sending power table command for power level %d, flags = 0x%X\n",
+			iwlmvm_mod_params.power_scheme,
+			le16_to_cpu(cmd->flags));
+	IWL_DEBUG_POWER(mvm, "Keep alive = %u sec\n", cmd->keep_alive_seconds);
+
+	if (cmd->flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK)) {
+		IWL_DEBUG_POWER(mvm, "Rx timeout = %u usec\n",
+				le32_to_cpu(cmd->rx_data_timeout));
+		IWL_DEBUG_POWER(mvm, "Tx timeout = %u usec\n",
+				le32_to_cpu(cmd->tx_data_timeout));
+		IWL_DEBUG_POWER(mvm, "LP RX RSSI threshold = %u\n",
+				cmd->lprx_rssi_threshold);
+	}
+}
+
+void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
+			     struct iwl_powertable_cmd *cmd)
 {
 	struct ieee80211_hw *hw = mvm->hw;
-	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 	struct ieee80211_chanctx_conf *chanctx_conf;
 	struct ieee80211_channel *chan;
 	int dtimper, dtimper_msec;
 	int keep_alive;
 	bool radar_detect = false;
 
-	cmd->id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
-							    mvmvif->color));
-	cmd->action = cpu_to_le32(FW_CTXT_ACTION_MODIFY);
+	/*
+	 * Regardless of power management state the driver must set
+	 * keep alive period. FW will use it for sending keep alive NDPs
+	 * immediately after association.
+	 */
+	cmd->keep_alive_seconds = POWER_KEEP_ALIVE_PERIOD_SEC;
+
+	if ((iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM) ||
+	    !iwlwifi_mod_params.power_save)
+		return;
+
+	cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK);
 
-	if ((!vif->bss_conf.ps) ||
-	    (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM))
+	if (!vif->bss_conf.ps)
 		return;
 
 	cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK);
@@ -110,26 +136,23 @@ static void iwl_power_build_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 
 	/* Check skip over DTIM conditions */
 	if (!radar_detect && (dtimper <= 10) &&
-	    (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_LP)) {
-		cmd->flags |= cpu_to_le16(POWER_FLAGS_SLEEP_OVER_DTIM_MSK);
-		cmd->num_skip_dtim = 2;
-	}
+	    (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_LP))
+		cmd->flags |= cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
 
 	/* Check that keep alive period is at least 3 * DTIM */
 	dtimper_msec = dtimper * vif->bss_conf.beacon_int;
 	keep_alive = max_t(int, 3 * dtimper_msec,
-			   MSEC_PER_SEC * POWER_KEEP_ALIVE_PERIOD_SEC);
+			   MSEC_PER_SEC * cmd->keep_alive_seconds);
 	keep_alive = DIV_ROUND_UP(keep_alive, MSEC_PER_SEC);
-
-	cmd->keep_alive_seconds = cpu_to_le16(keep_alive);
+	cmd->keep_alive_seconds = keep_alive;
 
 	if (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_LP) {
 		/* TODO: Also for D3 (device sleep / WoWLAN) */
-		cmd->rx_data_timeout = cpu_to_le32(10);
-		cmd->tx_data_timeout = cpu_to_le32(10);
+		cmd->rx_data_timeout = cpu_to_le32(10 * USEC_PER_MSEC);
+		cmd->tx_data_timeout = cpu_to_le32(10 * USEC_PER_MSEC);
 	} else {
-		cmd->rx_data_timeout = cpu_to_le32(50);
-		cmd->tx_data_timeout = cpu_to_le32(50);
+		cmd->rx_data_timeout = cpu_to_le32(100 * USEC_PER_MSEC);
+		cmd->tx_data_timeout = cpu_to_le32(100 * USEC_PER_MSEC);
 	}
 }
 
@@ -137,36 +160,11 @@ int iwl_mvm_power_update_mode(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 {
 	struct iwl_powertable_cmd cmd = {};
 
-	if (!iwlwifi_mod_params.power_save) {
-		IWL_DEBUG_POWER(mvm, "Power management is not allowed\n");
-		return 0;
-	}
-
 	if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
 		return 0;
 
-	iwl_power_build_cmd(mvm, vif, &cmd);
-
-	IWL_DEBUG_POWER(mvm,
-			"Sending power table command on mac id 0x%X for power level %d, flags = 0x%X\n",
-			cmd.id_and_color, iwlmvm_mod_params.power_scheme,
-			le16_to_cpu(cmd.flags));
-
-	if (cmd.flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK)) {
-		IWL_DEBUG_POWER(mvm, "Keep alive = %u sec\n",
-				le16_to_cpu(cmd.keep_alive_seconds));
-		IWL_DEBUG_POWER(mvm, "Rx timeout = %u usec\n",
-				le32_to_cpu(cmd.rx_data_timeout));
-		IWL_DEBUG_POWER(mvm, "Tx timeout = %u usec\n",
-				le32_to_cpu(cmd.tx_data_timeout));
-		IWL_DEBUG_POWER(mvm, "Rx timeout (uAPSD) = %u usec\n",
-				le32_to_cpu(cmd.rx_data_timeout_uapsd));
-		IWL_DEBUG_POWER(mvm, "Tx timeout = %u usec\n",
-				le32_to_cpu(cmd.tx_data_timeout_uapsd));
-		IWL_DEBUG_POWER(mvm, "LP RX RSSI threshold = %u\n",
-				cmd.lprx_rssi_threshold);
-		IWL_DEBUG_POWER(mvm, "DTIMs to skip = %u\n", cmd.num_skip_dtim);
-	}
+	iwl_mvm_power_build_cmd(mvm, vif, &cmd);
+	iwl_mvm_power_log(mvm, &cmd);
 
 	return iwl_mvm_send_cmd_pdu(mvm, POWER_TABLE_CMD, CMD_SYNC,
 				    sizeof(cmd), &cmd);
@@ -175,33 +173,16 @@ int iwl_mvm_power_update_mode(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 int iwl_mvm_power_disable(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 {
 	struct iwl_powertable_cmd cmd = {};
-	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
-
-	if (!iwlwifi_mod_params.power_save) {
-		IWL_DEBUG_POWER(mvm, "Power management is not allowed\n");
-		return 0;
-	}
 
 	if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
 		return 0;
 
-	cmd.id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
-							    mvmvif->color));
-	cmd.action = cpu_to_le32(FW_CTXT_ACTION_MODIFY);
+	if ((iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) &&
+	    iwlwifi_mod_params.power_save)
+		cmd.flags |= cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK);
 
-	IWL_DEBUG_POWER(mvm,
-			"Sending power table command on mac id 0x%X for power level %d, flags = 0x%X\n",
-			cmd.id_and_color, iwlmvm_mod_params.power_scheme,
-			le16_to_cpu(cmd.flags));
+	iwl_mvm_power_log(mvm, &cmd);
 
 	return iwl_mvm_send_cmd_pdu(mvm, POWER_TABLE_CMD, CMD_ASYNC,
 				    sizeof(cmd), &cmd);
 }
-
-#ifdef CONFIG_IWLWIFI_DEBUGFS
-void iwl_power_get_params(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
-			  struct iwl_powertable_cmd *cmd)
-{
-	iwl_power_build_cmd(mvm, vif, cmd);
-}
-#endif /* CONFIG_IWLWIFI_DEBUGFS */