Merge tag 'iwlwifi-next-for-kalle-2015-10-25' of...

Merge tag 'iwlwifi-next-for-kalle-2015-10-25' of https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next

* bug fix for TDLS
* fixes and cleanups in scan
* support of several scan plans
* improvements in FTM
* fixes in FW API
* improvements in the failure paths when the bus is dead
* other various small things here and there

drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h

@@ -86,6 +86,8 @@
  *	Structured as &struct iwl_fw_error_dump_trigger_desc.
  * @IWL_FW_ERROR_DUMP_RB: the content of an RB structured as
  *	&struct iwl_fw_error_dump_rb
+ * @IWL_FW_ERROR_PAGING: UMAC's image memory segments which were
+ *	paged to the DRAM.
  */
 enum iwl_fw_error_dump_type {
 	/* 0 is deprecated */
@@ -100,6 +102,7 @@ enum iwl_fw_error_dump_type {
 	IWL_FW_ERROR_DUMP_MEM = 9,
 	IWL_FW_ERROR_DUMP_ERROR_INFO = 10,
 	IWL_FW_ERROR_DUMP_RB = 11,
+	IWL_FW_ERROR_DUMP_PAGING = 12,
 
 	IWL_FW_ERROR_DUMP_MAX,
 };
@@ -239,6 +242,19 @@ struct iwl_fw_error_dump_rb {
 	u8 data[];
 };
 
+/**
+ * struct iwl_fw_error_dump_paging - content of the UMAC's image page
+ *	block on DRAM
+ * @index: the index of the page block
+ * @reserved:
+ * @data: the content of the page block
+ */
+struct iwl_fw_error_dump_paging {
+	__le32 index;
+	__le32 reserved;
+	u8 data[];
+};
+
 /**
  * iwl_fw_error_next_data - advance fw error dump data pointer
  * @data: previous data block

drivers/net/wireless/iwlwifi/iwl-fw-file.h

@@ -306,6 +306,8 @@ typedef unsigned int __bitwise__ iwl_ucode_tlv_capa_t;
  *	is supported.
  * @IWL_UCODE_TLV_CAPA_BT_COEX_RRC: supports BT Coex RRC
  * @IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT: supports gscan
+ * @IWL_UCODE_TLV_CAPA_EXTENDED_DTS_MEASURE: extended DTS measurement
+ * @IWL_UCODE_TLV_CAPA_SHORT_PM_TIMEOUTS: supports short PM timeouts
  *
  * @NUM_IWL_UCODE_TLV_CAPA: number of bits used
  */
@@ -330,6 +332,8 @@ enum iwl_ucode_tlv_capa {
 	IWL_UCODE_TLV_CAPA_LAR_MULTI_MCC		= (__force iwl_ucode_tlv_capa_t)29,
 	IWL_UCODE_TLV_CAPA_BT_COEX_RRC			= (__force iwl_ucode_tlv_capa_t)30,
 	IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT		= (__force iwl_ucode_tlv_capa_t)31,
+	IWL_UCODE_TLV_CAPA_EXTENDED_DTS_MEASURE		= (__force iwl_ucode_tlv_capa_t)64,
+	IWL_UCODE_TLV_CAPA_SHORT_PM_TIMEOUTS		= (__force iwl_ucode_tlv_capa_t)65,
 
 	NUM_IWL_UCODE_TLV_CAPA
 #ifdef __CHECKER__

drivers/net/wireless/iwlwifi/iwl-trans.h

@@ -409,6 +409,7 @@ enum iwl_d3_status {
  * @STATUS_TRANS_GOING_IDLE: shutting down the trans, only special commands
  *	are sent
  * @STATUS_TRANS_IDLE: the trans is idle - general commands are not to be sent
+ * @STATUS_TRANS_DEAD: trans is dead - avoid any read/write operation
  */
 enum iwl_trans_status {
 	STATUS_SYNC_HCMD_ACTIVE,
@@ -419,6 +420,7 @@ enum iwl_trans_status {
 	STATUS_FW_ERROR,
 	STATUS_TRANS_GOING_IDLE,
 	STATUS_TRANS_IDLE,
+	STATUS_TRANS_DEAD,
 };
 
 /**

drivers/net/wireless/iwlwifi/mvm/constants.h

@@ -71,6 +71,9 @@
 #define IWL_MVM_DEFAULT_PS_RX_DATA_TIMEOUT	(100 * USEC_PER_MSEC)
 #define IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT	(10 * USEC_PER_MSEC)
 #define IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT	(10 * USEC_PER_MSEC)
+#define IWL_MVM_SHORT_PS_TX_DATA_TIMEOUT	(2 * 1024) /* defined in TU */
+#define IWL_MVM_SHORT_PS_RX_DATA_TIMEOUT	(40 * 1024) /* defined in TU */
+#define IWL_MVM_P2P_LOWLATENCY_PS_ENABLE	0
 #define IWL_MVM_UAPSD_RX_DATA_TIMEOUT		(50 * USEC_PER_MSEC)
 #define IWL_MVM_UAPSD_TX_DATA_TIMEOUT		(50 * USEC_PER_MSEC)
 #define IWL_MVM_UAPSD_QUEUES		(IEEE80211_WMM_IE_STA_QOSINFO_AC_VO |\
@@ -101,7 +104,6 @@
 #define IWL_MVM_FW_BCAST_FILTER_PASS_ALL	0
 #define IWL_MVM_QUOTA_THRESHOLD			4
 #define IWL_MVM_RS_RSSI_BASED_INIT_RATE         0
-#define IWL_MVM_RS_DISABLE_P2P_MIMO		0
 #define IWL_MVM_RS_80_20_FAR_RANGE_TWEAK	1
 #define IWL_MVM_TOF_IS_RESPONDER		0
 #define IWL_MVM_RS_NUM_TRY_BEFORE_ANT_TOGGLE    1

drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c

@@ -715,11 +715,30 @@ static ssize_t iwl_dbgfs_tof_responder_params_write(struct ieee80211_vif *vif,
 		goto out;
 	}
 
-	data = iwl_dbgfs_is_match("ctrl_ch_position=", buf);
+	data = iwl_dbgfs_is_match("center_freq=", buf);
 	if (data) {
+		struct iwl_tof_responder_config_cmd *cmd =
+			&mvm->tof_data.responder_cfg;
+
 		ret = kstrtou32(data, 10, &value);
-		if (ret == 0)
-			mvm->tof_data.responder_cfg.ctrl_ch_position = value;
+		if (ret == 0 && value) {
+			enum ieee80211_band band = (cmd->channel_num <= 14) ?
+						   IEEE80211_BAND_2GHZ :
+						   IEEE80211_BAND_5GHZ;
+			struct ieee80211_channel chn = {
+				.band = band,
+				.center_freq = ieee80211_channel_to_frequency(
+					cmd->channel_num, band),
+				};
+			struct cfg80211_chan_def chandef = {
+				.chan =  &chn,
+				.center_freq1 =
+					ieee80211_channel_to_frequency(value,
+								       band),
+			};
+
+			cmd->ctrl_ch_position = iwl_mvm_get_ctrl_pos(&chandef);
+		}
 		goto out;
 	}
 

drivers/net/wireless/iwlwifi/mvm/debugfs.c

@@ -85,7 +85,7 @@ static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf,
 	IWL_ERR(mvm, "FLUSHING queues: scd_q_msk = 0x%x\n", scd_q_msk);
 
 	mutex_lock(&mvm->mutex);
-	ret =  iwl_mvm_flush_tx_path(mvm, scd_q_msk, true) ? : count;
+	ret =  iwl_mvm_flush_tx_path(mvm, scd_q_msk, 0) ? : count;
 	mutex_unlock(&mvm->mutex);
 
 	return ret;

drivers/net/wireless/iwlwifi/mvm/fw-api-scan.h

@@ -101,6 +101,7 @@ struct iwl_ssid_ie {
 
 #define IWL_FULL_SCAN_MULTIPLIER 5
 #define IWL_FAST_SCHED_SCAN_ITERATIONS 3
+#define IWL_MAX_SCHED_SCAN_PLANS 2
 
 enum scan_framework_client {
 	SCAN_CLIENT_SCHED_SCAN		= BIT(0),
@@ -359,7 +360,7 @@ struct iwl_scan_req_lmac {
 	/* SCAN_REQ_PERIODIC_PARAMS_API_S */
 	__le32 iter_num;
 	__le32 delay;
-	struct iwl_scan_schedule_lmac schedule[2];
+	struct iwl_scan_schedule_lmac schedule[IWL_MAX_SCHED_SCAN_PLANS];
 	struct iwl_scan_channel_opt channel_opt[2];
 	u8 data[];
 } __packed;
@@ -582,7 +583,7 @@ struct iwl_scan_umac_schedule {
  */
 struct iwl_scan_req_umac_tail {
 	/* SCAN_PERIODIC_PARAMS_API_S_VER_1 */
-	struct iwl_scan_umac_schedule schedule[2];
+	struct iwl_scan_umac_schedule schedule[IWL_MAX_SCHED_SCAN_PLANS];
 	__le16 delay;
 	__le16 reserved;
 	/* SCAN_PROBE_PARAMS_API_S_VER_1 */

drivers/net/wireless/iwlwifi/mvm/fw-api.h

@@ -1523,6 +1523,69 @@ struct iwl_dts_measurement_cmd {
 	__le32 flags;
 } __packed; /* TEMPERATURE_MEASUREMENT_TRIGGER_CMD_S */
 
+/**
+* enum iwl_dts_control_measurement_mode - DTS measurement type
+* @DTS_AUTOMATIC: Automatic mode (full SW control). Provide temperature read
+*                 back (latest value. Not waiting for new value). Use automatic
+*                 SW DTS configuration.
+* @DTS_REQUEST_READ: Request DTS read. Configure DTS with manual settings,
+*                    trigger DTS reading and provide read back temperature read
+*                    when available.
+* @DTS_OVER_WRITE: over-write the DTS temperatures in the SW until next read
+* @DTS_DIRECT_WITHOUT_MEASURE: DTS returns its latest temperature result,
+*                              without measurement trigger.
+*/
+enum iwl_dts_control_measurement_mode {
+	DTS_AUTOMATIC			= 0,
+	DTS_REQUEST_READ		= 1,
+	DTS_OVER_WRITE			= 2,
+	DTS_DIRECT_WITHOUT_MEASURE	= 3,
+};
+
+/**
+* enum iwl_dts_used - DTS to use or used for measurement in the DTS request
+* @DTS_USE_TOP: Top
+* @DTS_USE_CHAIN_A: chain A
+* @DTS_USE_CHAIN_B: chain B
+* @DTS_USE_CHAIN_C: chain C
+* @XTAL_TEMPERATURE - read temperature from xtal
+*/
+enum iwl_dts_used {
+	DTS_USE_TOP		= 0,
+	DTS_USE_CHAIN_A		= 1,
+	DTS_USE_CHAIN_B		= 2,
+	DTS_USE_CHAIN_C		= 3,
+	XTAL_TEMPERATURE	= 4,
+};
+
+/**
+* enum iwl_dts_bit_mode - bit-mode to use in DTS request read mode
+* @DTS_BIT6_MODE: bit 6 mode
+* @DTS_BIT8_MODE: bit 8 mode
+*/
+enum iwl_dts_bit_mode {
+	DTS_BIT6_MODE	= 0,
+	DTS_BIT8_MODE	= 1,
+};
+
+/**
+ * iwl_ext_dts_measurement_cmd - request extended DTS temperature measurements
+ * @control_mode: see &enum iwl_dts_control_measurement_mode
+ * @temperature: used when over write DTS mode is selected
+ * @sensor: set temperature sensor to use. See &enum iwl_dts_used
+ * @avg_factor: average factor to DTS in request DTS read mode
+ * @bit_mode: value defines the DTS bit mode to use. See &enum iwl_dts_bit_mode
+ * @step_duration: step duration for the DTS
+ */
+struct iwl_ext_dts_measurement_cmd {
+	__le32 control_mode;
+	__le32 temperature;
+	__le32 sensor;
+	__le32 avg_factor;
+	__le32 bit_mode;
+	__le32 step_duration;
+} __packed; /* XVT_FW_DTS_CONTROL_MEASUREMENT_REQUEST_API_S */
+
 /**
  * iwl_dts_measurement_notif - notification received with the measurements
  *

drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c

@@ -843,6 +843,9 @@ static int iwl_mvm_mac_ctxt_cmd_sta(struct iwl_mvm *mvm,
 	ctxt_sta->listen_interval = cpu_to_le32(mvm->hw->conf.listen_interval);
 	ctxt_sta->assoc_id = cpu_to_le32(vif->bss_conf.aid);
 
+	if (vif->probe_req_reg && vif->bss_conf.assoc && vif->p2p)
+		cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST);
+
 	return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd);
 }
 

drivers/net/wireless/iwlwifi/mvm/mac80211.c

@@ -572,6 +572,14 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 	/* we create the 802.11 header and zero length SSID IE. */
 	hw->wiphy->max_sched_scan_ie_len =
 		SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
+	hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS;
+	hw->wiphy->max_sched_scan_plan_interval = U16_MAX;
+
+	/*
+	 * the firmware uses u8 for num of iterations, but 0xff is saved for
+	 * infinite loop, so the maximum number of iterations is actually 254.
+	 */
+	hw->wiphy->max_sched_scan_plan_iterations = 254;
 
 	hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
 			       NL80211_FEATURE_LOW_PRIORITY_SCAN |
@@ -1129,6 +1137,12 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
 
 	lockdep_assert_held(&mvm->mutex);
 
+	/* there's no point in fw dump if the bus is dead */
+	if (test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) {
+		IWL_ERR(mvm, "Skip fw error dump since bus is dead\n");
+		return;
+	}
+
 	if (mvm->fw_dump_trig &&
 	    mvm->fw_dump_trig->mode & IWL_FW_DBG_TRIGGER_MONITOR_ONLY)
 		monitor_dump_only = true;
@@ -1192,6 +1206,13 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
 	if (sram2_len)
 		file_len += sizeof(*dump_data) + sizeof(*dump_mem) + sram2_len;
 
+	/* Make room for fw's virtual image pages, if it exists */
+	if (mvm->fw->img[mvm->cur_ucode].paging_mem_size)
+		file_len += mvm->num_of_paging_blk *
+			(sizeof(*dump_data) +
+			 sizeof(struct iwl_fw_error_dump_paging) +
+			 PAGING_BLOCK_SIZE);
+
 	/* If we only want a monitor dump, reset the file length */
 	if (monitor_dump_only) {
 		file_len = sizeof(*dump_file) + sizeof(*dump_data) +
@@ -1302,6 +1323,26 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
 					 dump_mem->data, IWL8260_ICCM_LEN);
 	}
 
+	/* Dump fw's virtual image */
+	if (mvm->fw->img[mvm->cur_ucode].paging_mem_size) {
+		u32 i;
+
+		for (i = 1; i < mvm->num_of_paging_blk + 1; i++) {
+			struct iwl_fw_error_dump_paging *paging;
+			struct page *pages =
+				mvm->fw_paging_db[i].fw_paging_block;
+
+			dump_data = iwl_fw_error_next_data(dump_data);
+			dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_PAGING);
+			dump_data->len = cpu_to_le32(sizeof(*paging) +
+						     PAGING_BLOCK_SIZE);
+			paging = (void *)dump_data->data;
+			paging->index = cpu_to_le32(i);
+			memcpy(paging->data, page_address(pages),
+			       PAGING_BLOCK_SIZE);
+		}
+	}
+
 dump_trans_data:
 	fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans,
 						       mvm->fw_dump_trig);
@@ -1754,7 +1795,7 @@ static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
 		 * Flush them here.
 		 */
 		mutex_lock(&mvm->mutex);
-		iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
+		iwl_mvm_flush_tx_path(mvm, tfd_msk, 0);
 		mutex_unlock(&mvm->mutex);
 
 		/*
@@ -1955,6 +1996,27 @@ static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
 	*total_flags = 0;
 }
 
+static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw,
+					struct ieee80211_vif *vif,
+					unsigned int filter_flags,
+					unsigned int changed_flags)
+{
+	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
+
+	/* We support only filter for probe requests */
+	if (!(changed_flags & FIF_PROBE_REQ))
+		return;
+
+	/* Supported only for p2p client interfaces */
+	if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc ||
+	    !vif->p2p)
+		return;
+
+	mutex_lock(&mvm->mutex);
+	iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
+	mutex_unlock(&mvm->mutex);
+}
+
 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
 struct iwl_bcast_iter_data {
 	struct iwl_mvm *mvm;
@@ -3898,7 +3960,7 @@ static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
 	}
 
 	if (drop) {
-		if (iwl_mvm_flush_tx_path(mvm, msk, true))
+		if (iwl_mvm_flush_tx_path(mvm, msk, 0))
 			IWL_ERR(mvm, "flush request fail\n");
 		mutex_unlock(&mvm->mutex);
 	} else {
@@ -4135,6 +4197,7 @@ const struct ieee80211_ops iwl_mvm_hw_ops = {
 	.config = iwl_mvm_mac_config,
 	.prepare_multicast = iwl_mvm_prepare_multicast,
 	.configure_filter = iwl_mvm_configure_filter,
+	.config_iface_filter = iwl_mvm_config_iface_filter,
 	.bss_info_changed = iwl_mvm_bss_info_changed,
 	.hw_scan = iwl_mvm_mac_hw_scan,
 	.cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,

drivers/net/wireless/iwlwifi/mvm/mvm.h

@@ -1036,7 +1036,7 @@ const char *iwl_mvm_get_tx_fail_reason(u32 status);
 #else
 static inline const char *iwl_mvm_get_tx_fail_reason(u32 status) { return ""; }
 #endif
-int iwl_mvm_flush_tx_path(struct iwl_mvm *mvm, u32 tfd_msk, bool sync);
+int iwl_mvm_flush_tx_path(struct iwl_mvm *mvm, u32 tfd_msk, u32 flags);
 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm);
 
 static inline void iwl_mvm_set_tx_cmd_ccmp(struct ieee80211_tx_info *info,

drivers/net/wireless/iwlwifi/mvm/nvm.c

@@ -483,6 +483,7 @@ static int iwl_mvm_read_external_nvm(struct iwl_mvm *mvm)
 			ret = -ENOMEM;
 			break;
 		}
+		kfree(mvm->nvm_sections[section_id].data);
 		mvm->nvm_sections[section_id].data = temp;
 		mvm->nvm_sections[section_id].length = section_size;
 

drivers/net/wireless/iwlwifi/mvm/power.c

@@ -348,7 +348,8 @@ static void iwl_mvm_power_config_skip_dtim(struct iwl_mvm *mvm,
 
 static void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm,
 				    struct ieee80211_vif *vif,
-				    struct iwl_mac_power_cmd *cmd)
+				    struct iwl_mac_power_cmd *cmd,
+				    bool host_awake)
 {
 	int dtimper, bi;
 	int keep_alive;
@@ -376,8 +377,13 @@ static void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm,
 
 	cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK);
 
-	if (!vif->bss_conf.ps || !mvmvif->pm_enabled ||
-	    (iwl_mvm_vif_low_latency(mvmvif) && vif->p2p))
+	if (!vif->bss_conf.ps || !mvmvif->pm_enabled)
+		return;
+
+	if (iwl_mvm_vif_low_latency(mvmvif) && vif->p2p &&
+	    (!fw_has_capa(&mvm->fw->ucode_capa,
+			 IWL_UCODE_TLV_CAPA_SHORT_PM_TIMEOUTS) ||
+	     !IWL_MVM_P2P_LOWLATENCY_PS_ENABLE))
 		return;
 
 	cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK);
@@ -389,19 +395,25 @@ static void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm,
 		cmd->lprx_rssi_threshold = POWER_LPRX_RSSI_THRESHOLD;
 	}
 
-	iwl_mvm_power_config_skip_dtim(mvm, vif, cmd,
-				       mvm->cur_ucode != IWL_UCODE_WOWLAN);
+	iwl_mvm_power_config_skip_dtim(mvm, vif, cmd, host_awake);
 
-	if (mvm->cur_ucode != IWL_UCODE_WOWLAN) {
+	if (!host_awake) {
 		cmd->rx_data_timeout =
-			cpu_to_le32(IWL_MVM_DEFAULT_PS_RX_DATA_TIMEOUT);
+			cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT);
 		cmd->tx_data_timeout =
-			cpu_to_le32(IWL_MVM_DEFAULT_PS_TX_DATA_TIMEOUT);
+			cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT);
+	} else if (iwl_mvm_vif_low_latency(mvmvif) && vif->p2p &&
+		   fw_has_capa(&mvm->fw->ucode_capa,
+			       IWL_UCODE_TLV_CAPA_SHORT_PM_TIMEOUTS)) {
+		cmd->tx_data_timeout =
+			cpu_to_le32(IWL_MVM_SHORT_PS_TX_DATA_TIMEOUT);
+		cmd->rx_data_timeout =
+			cpu_to_le32(IWL_MVM_SHORT_PS_RX_DATA_TIMEOUT);
 	} else {
 		cmd->rx_data_timeout =
-			cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT);
+			cpu_to_le32(IWL_MVM_DEFAULT_PS_RX_DATA_TIMEOUT);
 		cmd->tx_data_timeout =
-			cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT);
+			cpu_to_le32(IWL_MVM_DEFAULT_PS_TX_DATA_TIMEOUT);
 	}
 
 	if (iwl_mvm_power_allow_uapsd(mvm, vif))
@@ -458,7 +470,8 @@ static int iwl_mvm_power_send_cmd(struct iwl_mvm *mvm,
 {
 	struct iwl_mac_power_cmd cmd = {};
 
-	iwl_mvm_power_build_cmd(mvm, vif, &cmd);
+	iwl_mvm_power_build_cmd(mvm, vif, &cmd,
+				mvm->cur_ucode != IWL_UCODE_WOWLAN);
 	iwl_mvm_power_log(mvm, &cmd);
 #ifdef CONFIG_IWLWIFI_DEBUGFS
 	memcpy(&iwl_mvm_vif_from_mac80211(vif)->mac_pwr_cmd, &cmd, sizeof(cmd));
@@ -994,11 +1007,7 @@ int iwl_mvm_update_d0i3_power_mode(struct iwl_mvm *mvm,
 	if (!vif->bss_conf.assoc)
 		return 0;
 
-	iwl_mvm_power_build_cmd(mvm, vif, &cmd);
-
-	/* when enabling D0i3, override the skip-over-dtim configuration */
-	if (enable)
-		iwl_mvm_power_config_skip_dtim(mvm, vif, &cmd, false);
+	iwl_mvm_power_build_cmd(mvm, vif, &cmd, !enable);
 
 	iwl_mvm_power_log(mvm, &cmd);
 #ifdef CONFIG_IWLWIFI_DEBUGFS

drivers/net/wireless/iwlwifi/mvm/rs.c

@@ -177,9 +177,6 @@ static bool rs_mimo_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 
 	mvmsta = iwl_mvm_sta_from_mac80211(sta);
 	mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
-	if (IWL_MVM_RS_DISABLE_P2P_MIMO &&
-	    iwl_mvm_vif_low_latency(mvmvif) && mvmsta->vif->p2p)
-		return false;
 
 	if (mvm->nvm_data->sku_cap_mimo_disabled)
 		return false;
@@ -3071,9 +3068,6 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 	else
 		rs_vht_init(mvm, sta, lq_sta, vht_cap);
 
-	if (IWL_MVM_RS_DISABLE_P2P_MIMO && sta_priv->vif->p2p)
-		lq_sta->active_mimo2_rate = 0;
-
 	lq_sta->max_legacy_rate_idx =
 		rs_get_max_rate_from_mask(lq_sta->active_legacy_rate);
 	lq_sta->max_siso_rate_idx =

drivers/net/wireless/iwlwifi/mvm/scan.c

@@ -131,7 +131,6 @@ struct iwl_mvm_scan_params {
 	int n_ssids;
 	struct cfg80211_ssid *ssids;
 	struct ieee80211_channel **channels;
-	u16 interval; /* interval between scans (in secs) */
 	u32 flags;
 	u8 *mac_addr;
 	u8 *mac_addr_mask;
@@ -140,7 +139,8 @@ struct iwl_mvm_scan_params {
 	int n_match_sets;
 	struct iwl_scan_probe_req preq;
 	struct cfg80211_match_set *match_sets;
-	u8 iterations[2];
+	int n_scan_plans;
+	struct cfg80211_sched_scan_plan *scan_plans;
 };
 
 static u8 iwl_mvm_scan_rx_ant(struct iwl_mvm *mvm)
@@ -737,8 +737,7 @@ static inline bool iwl_mvm_scan_fits(struct iwl_mvm *mvm, int n_ssids,
 }
 
 static inline bool iwl_mvm_scan_use_ebs(struct iwl_mvm *mvm,
-					struct ieee80211_vif *vif,
-					int n_iterations)
+					struct ieee80211_vif *vif)
 {
 	const struct iwl_ucode_capabilities *capa = &mvm->fw->ucode_capa;
 
@@ -753,11 +752,6 @@ static inline bool iwl_mvm_scan_use_ebs(struct iwl_mvm *mvm,
 		vif->type != NL80211_IFTYPE_P2P_DEVICE);
 }
 
-static int iwl_mvm_scan_total_iterations(struct iwl_mvm_scan_params *params)
-{
-	return params->iterations[0] + params->iterations[1];
-}
-
 static int iwl_mvm_scan_lmac_flags(struct iwl_mvm *mvm,
 				   struct iwl_mvm_scan_params *params)
 {
@@ -796,12 +790,15 @@ static int iwl_mvm_scan_lmac(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 		(void *)(cmd->data + sizeof(struct iwl_scan_channel_cfg_lmac) *
 			 mvm->fw->ucode_capa.n_scan_channels);
 	u32 ssid_bitmap = 0;
-	int n_iterations = iwl_mvm_scan_total_iterations(params);
+	int i;
 
 	lockdep_assert_held(&mvm->mutex);
 
 	memset(cmd, 0, ksize(cmd));
 
+	if (WARN_ON(params->n_scan_plans > IWL_MAX_SCHED_SCAN_PLANS))
+		return -EINVAL;
+
 	iwl_mvm_scan_lmac_dwell(mvm, cmd, params);
 
 	cmd->rx_chain_select = iwl_mvm_scan_rx_chain(mvm);
@@ -821,14 +818,26 @@ static int iwl_mvm_scan_lmac(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	/* this API uses bits 1-20 instead of 0-19 */
 	ssid_bitmap <<= 1;
 
-	cmd->schedule[0].delay = cpu_to_le16(params->interval);
-	cmd->schedule[0].iterations = params->iterations[0];
-	cmd->schedule[0].full_scan_mul = 1;
-	cmd->schedule[1].delay = cpu_to_le16(params->interval);
-	cmd->schedule[1].iterations = params->iterations[1];
-	cmd->schedule[1].full_scan_mul = 1;
+	for (i = 0; i < params->n_scan_plans; i++) {
+		struct cfg80211_sched_scan_plan *scan_plan =
+			&params->scan_plans[i];
+
+		cmd->schedule[i].delay =
+			cpu_to_le16(scan_plan->interval);
+		cmd->schedule[i].iterations = scan_plan->iterations;
+		cmd->schedule[i].full_scan_mul = 1;
+	}
 
-	if (iwl_mvm_scan_use_ebs(mvm, vif, n_iterations)) {
+	/*
+	 * If the number of iterations of the last scan plan is set to
+	 * zero, it should run infinitely. However, this is not always the case.
+	 * For example, when regular scan is requested the driver sets one scan
+	 * plan with one iteration.
+	 */
+	if (!cmd->schedule[i - 1].iterations)
+		cmd->schedule[i - 1].iterations = 0xff;
+
+	if (iwl_mvm_scan_use_ebs(mvm, vif)) {
 		cmd->channel_opt[0].flags =
 			cpu_to_le16(IWL_SCAN_CHANNEL_FLAG_EBS |
 				    IWL_SCAN_CHANNEL_FLAG_EBS_ACCURATE |
@@ -892,7 +901,6 @@ static __le32 iwl_mvm_scan_config_rates(struct iwl_mvm *mvm)
 
 int iwl_mvm_config_scan(struct iwl_mvm *mvm)
 {
-
 	struct iwl_scan_config *scan_config;
 	struct ieee80211_supported_band *band;
 	int num_channels =
@@ -968,6 +976,12 @@ static int iwl_mvm_scan_uid_by_status(struct iwl_mvm *mvm, int status)
 	return -ENOENT;
 }
 
+static inline bool iwl_mvm_is_regular_scan(struct iwl_mvm_scan_params *params)
+{
+	return params->n_scan_plans == 1 &&
+		params->scan_plans[0].iterations == 1;
+}
+
 static void iwl_mvm_scan_umac_dwell(struct iwl_mvm *mvm,
 				    struct iwl_scan_req_umac *cmd,
 				    struct iwl_mvm_scan_params *params)
@@ -980,7 +994,7 @@ static void iwl_mvm_scan_umac_dwell(struct iwl_mvm *mvm,
 	cmd->scan_priority =
 		iwl_mvm_scan_priority(mvm, IWL_SCAN_PRIORITY_EXT_6);
 
-	if (iwl_mvm_scan_total_iterations(params) == 1)
+	if (iwl_mvm_is_regular_scan(params))
 		cmd->ooc_priority =
 			iwl_mvm_scan_priority(mvm, IWL_SCAN_PRIORITY_EXT_6);
 	else
@@ -1027,7 +1041,7 @@ static u32 iwl_mvm_scan_umac_flags(struct iwl_mvm *mvm,
 	else
 		flags |= IWL_UMAC_SCAN_GEN_FLAGS_MATCH;
 
-	if (iwl_mvm_scan_total_iterations(params) > 1)
+	if (!iwl_mvm_is_regular_scan(params))
 		flags |= IWL_UMAC_SCAN_GEN_FLAGS_PERIODIC;
 
 #ifdef CONFIG_IWLWIFI_DEBUGFS
@@ -1045,12 +1059,14 @@ static int iwl_mvm_scan_umac(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	struct iwl_scan_req_umac_tail *sec_part = (void *)&cmd->data +
 		sizeof(struct iwl_scan_channel_cfg_umac) *
 			mvm->fw->ucode_capa.n_scan_channels;
-	int uid;
+	int uid, i;
 	u32 ssid_bitmap = 0;
-	int n_iterations = iwl_mvm_scan_total_iterations(params);
 
 	lockdep_assert_held(&mvm->mutex);
 
+	if (WARN_ON(params->n_scan_plans > IWL_MAX_SCHED_SCAN_PLANS))
+		return -EINVAL;
+
 	uid = iwl_mvm_scan_uid_by_status(mvm, 0);
 	if (uid < 0)
 		return uid;
@@ -1067,7 +1083,7 @@ static int iwl_mvm_scan_umac(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	if (type == IWL_MVM_SCAN_SCHED)
 		cmd->flags = cpu_to_le32(IWL_UMAC_SCAN_FLAG_PREEMPTIVE);
 
-	if (iwl_mvm_scan_use_ebs(mvm, vif, n_iterations))
+	if (iwl_mvm_scan_use_ebs(mvm, vif))
 		cmd->channel_flags = IWL_SCAN_CHANNEL_FLAG_EBS |
 				     IWL_SCAN_CHANNEL_FLAG_EBS_ACCURATE |
 				     IWL_SCAN_CHANNEL_FLAG_CACHE_ADD;
@@ -1079,12 +1095,23 @@ static int iwl_mvm_scan_umac(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	iwl_mvm_umac_scan_cfg_channels(mvm, params->channels,
 				       params->n_channels, ssid_bitmap, cmd);
 
-	/* With UMAC we use only one schedule for now, so use the sum
-	 * of the iterations (with a a maximum of 255).
+	for (i = 0; i < params->n_scan_plans; i++) {
+		struct cfg80211_sched_scan_plan *scan_plan =
+			&params->scan_plans[i];
+
+		sec_part->schedule[i].iter_count = scan_plan->iterations;
+		sec_part->schedule[i].interval =
+			cpu_to_le16(scan_plan->interval);
+	}
+
+	/*
+	 * If the number of iterations of the last scan plan is set to
+	 * zero, it should run infinitely. However, this is not always the case.
+	 * For example, when regular scan is requested the driver sets one scan
+	 * plan with one iteration.
 	 */
-	sec_part->schedule[0].iter_count =
-		(n_iterations > 255) ? 255 : n_iterations;
-	sec_part->schedule[0].interval = cpu_to_le16(params->interval);
+	if (!sec_part->schedule[i - 1].iter_count)
+		sec_part->schedule[i - 1].iter_count = 0xff;
 
 	sec_part->delay = cpu_to_le16(params->delay);
 	sec_part->preq = params->preq;
@@ -1150,6 +1177,7 @@ int iwl_mvm_reg_scan_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	};
 	struct iwl_mvm_scan_params params = {};
 	int ret;
+	struct cfg80211_sched_scan_plan scan_plan = { .iterations = 1 };
 
 	lockdep_assert_held(&mvm->mutex);
 
@@ -1162,8 +1190,6 @@ int iwl_mvm_reg_scan_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	if (ret)
 		return ret;
 
-	iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN);
-
 	/* we should have failed registration if scan_cmd was NULL */
 	if (WARN_ON(!mvm->scan_cmd))
 		return -ENOMEM;
@@ -1175,7 +1201,6 @@ int iwl_mvm_reg_scan_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	params.flags = req->flags;
 	params.n_channels = req->n_channels;
 	params.delay = 0;
-	params.interval = 0;
 	params.ssids = req->ssids;
 	params.channels = req->channels;
 	params.mac_addr = req->mac_addr;
@@ -1185,8 +1210,8 @@ int iwl_mvm_reg_scan_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	params.n_match_sets = 0;
 	params.match_sets = NULL;
 
-	params.iterations[0] = 1;
-	params.iterations[1] = 0;
+	params.scan_plans = &scan_plan;
+	params.n_scan_plans = 1;
 
 	params.type = iwl_mvm_get_scan_type(mvm, vif, &params);
 
@@ -1205,21 +1230,20 @@ int iwl_mvm_reg_scan_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 		return ret;
 
 	ret = iwl_mvm_send_cmd(mvm, &hcmd);
-	if (!ret) {
-		IWL_DEBUG_SCAN(mvm, "Scan request was sent successfully\n");
-		mvm->scan_status |= IWL_MVM_SCAN_REGULAR;
-	} else {
+	if (ret) {
 		/* If the scan failed, it usually means that the FW was unable
 		 * to allocate the time events. Warn on it, but maybe we
 		 * should try to send the command again with different params.
 		 */
 		IWL_ERR(mvm, "Scan failed! ret %d\n", ret);
+		return ret;
 	}
 
-	if (ret)
-		iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
+	IWL_DEBUG_SCAN(mvm, "Scan request was sent successfully\n");
+	mvm->scan_status |= IWL_MVM_SCAN_REGULAR;
+	iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN);
 
-	return ret;
+	return 0;
 }
 
 int iwl_mvm_sched_scan_start(struct iwl_mvm *mvm,
@@ -1265,20 +1289,14 @@ int iwl_mvm_sched_scan_start(struct iwl_mvm *mvm,
 	params.pass_all =  iwl_mvm_scan_pass_all(mvm, req);
 	params.n_match_sets = req->n_match_sets;
 	params.match_sets = req->match_sets;
+	if (!req->n_scan_plans)
+		return -EINVAL;
 
-	params.iterations[0] = 0;
-	params.iterations[1] = 0xff;
+	params.n_scan_plans = req->n_scan_plans;
+	params.scan_plans = req->scan_plans;
 
 	params.type = iwl_mvm_get_scan_type(mvm, vif, &params);
 
-	if (req->scan_plans[0].interval > U16_MAX) {
-		IWL_DEBUG_SCAN(mvm,
-			       "interval value is > 16-bits, set to max possible\n");
-		params.interval = U16_MAX;
-	} else {
-		params.interval = req->scan_plans[0].interval;
-	}
-
 	/* In theory, LMAC scans can handle a 32-bit delay, but since
 	 * waiting for over 18 hours to start the scan is a bit silly
 	 * and to keep it aligned with UMAC scans (which only support

drivers/net/wireless/iwlwifi/mvm/sta.c

@@ -255,7 +255,7 @@ static void iwl_mvm_tdls_sta_deinit(struct iwl_mvm *mvm,
 	/* disable the TDLS STA-specific queues */
 	sta_msk = mvmsta->tfd_queue_msk;
 	for_each_set_bit(i, &sta_msk, sizeof(sta_msk) * BITS_PER_BYTE)
-		iwl_mvm_disable_txq(mvm, i, i, 0, 0);
+		iwl_mvm_disable_txq(mvm, i, i, IWL_MAX_TID_COUNT, 0);
 }
 
 int iwl_mvm_add_sta(struct iwl_mvm *mvm,
@@ -474,7 +474,8 @@ void iwl_mvm_sta_drained_wk(struct work_struct *wk)
 			unsigned long i, msk = mvm->tfd_drained[sta_id];
 
 			for_each_set_bit(i, &msk, sizeof(msk) * BITS_PER_BYTE)
-				iwl_mvm_disable_txq(mvm, i, i, 0, 0);
+				iwl_mvm_disable_txq(mvm, i, i,
+						    IWL_MAX_TID_COUNT, 0);
 
 			mvm->tfd_drained[sta_id] = 0;
 			IWL_DEBUG_TDLS(mvm, "Drained sta %d, with queues %ld\n",
@@ -501,7 +502,7 @@ int iwl_mvm_rm_sta(struct iwl_mvm *mvm,
 		if (ret)
 			return ret;
 		/* flush its queues here since we are freeing mvm_sta */
-		ret = iwl_mvm_flush_tx_path(mvm, mvm_sta->tfd_queue_msk, true);
+		ret = iwl_mvm_flush_tx_path(mvm, mvm_sta->tfd_queue_msk, 0);
 		if (ret)
 			return ret;
 		ret = iwl_trans_wait_tx_queue_empty(mvm->trans,
@@ -1155,7 +1156,7 @@ int iwl_mvm_sta_tx_agg_flush(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 
 	if (old_state >= IWL_AGG_ON) {
 		iwl_mvm_drain_sta(mvm, mvmsta, true);
-		if (iwl_mvm_flush_tx_path(mvm, BIT(txq_id), true))
+		if (iwl_mvm_flush_tx_path(mvm, BIT(txq_id), 0))
 			IWL_ERR(mvm, "Couldn't flush the AGG queue\n");
 		iwl_trans_wait_tx_queue_empty(mvm->trans,
 					      mvmsta->tfd_queue_msk);

drivers/net/wireless/iwlwifi/mvm/time-event.c

@@ -129,7 +129,7 @@ void iwl_mvm_roc_done_wk(struct work_struct *wk)
 	 * issue as it will have to complete before the next command is
 	 * executed, and a new time event means a new command.
 	 */
-	iwl_mvm_flush_tx_path(mvm, queues, false);
+	iwl_mvm_flush_tx_path(mvm, queues, CMD_ASYNC);
 }
 
 static void iwl_mvm_roc_finished(struct iwl_mvm *mvm)

drivers/net/wireless/iwlwifi/mvm/tt.c

@@ -176,6 +176,9 @@ static int iwl_mvm_get_temp_cmd(struct iwl_mvm *mvm)
 	struct iwl_dts_measurement_cmd cmd = {
 		.flags = cpu_to_le32(DTS_TRIGGER_CMD_FLAGS_TEMP),
 	};
+	struct iwl_ext_dts_measurement_cmd extcmd = {
+		.control_mode = cpu_to_le32(DTS_AUTOMATIC),
+	};
 	u32 cmdid;
 
 	if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_WIDE_CMD_HDR))
@@ -183,8 +186,12 @@ static int iwl_mvm_get_temp_cmd(struct iwl_mvm *mvm)
 				   PHY_OPS_GROUP, 0);
 	else
 		cmdid = CMD_DTS_MEASUREMENT_TRIGGER;
-	return iwl_mvm_send_cmd_pdu(mvm, cmdid, 0,
-				    sizeof(cmd), &cmd);
+
+	if (!fw_has_capa(&mvm->fw->ucode_capa,
+			 IWL_UCODE_TLV_CAPA_EXTENDED_DTS_MEASURE))
+		return iwl_mvm_send_cmd_pdu(mvm, cmdid, 0, sizeof(cmd), &cmd);
+
+	return iwl_mvm_send_cmd_pdu(mvm, cmdid, 0, sizeof(extcmd), &extcmd);
 }
 
 int iwl_mvm_get_temp(struct iwl_mvm *mvm)

drivers/net/wireless/iwlwifi/mvm/tx.c

@@ -1099,7 +1099,7 @@ void iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
  * 2) flush the Tx path
  * 3) wait for the transport queues to be empty
  */
-int iwl_mvm_flush_tx_path(struct iwl_mvm *mvm, u32 tfd_msk, bool sync)
+int iwl_mvm_flush_tx_path(struct iwl_mvm *mvm, u32 tfd_msk, u32 flags)
 {
 	int ret;
 	struct iwl_tx_path_flush_cmd flush_cmd = {
@@ -1107,8 +1107,6 @@ int iwl_mvm_flush_tx_path(struct iwl_mvm *mvm, u32 tfd_msk, bool sync)
 		.flush_ctl = cpu_to_le16(DUMP_TX_FIFO_FLUSH),
 	};
 
-	u32 flags = sync ? 0 : CMD_ASYNC;
-
 	ret = iwl_mvm_send_cmd_pdu(mvm, TXPATH_FLUSH, flags,
 				   sizeof(flush_cmd), &flush_cmd);
 	if (ret)

drivers/net/wireless/iwlwifi/pcie/trans.c

@@ -592,10 +592,8 @@ static int iwl_pcie_prepare_card_hw(struct iwl_trans *trans)
 
 		do {
 			ret = iwl_pcie_set_hw_ready(trans);
-			if (ret >= 0) {
-				ret = 0;
-				goto out;
-			}
+			if (ret >= 0)
+				return 0;
 
 			usleep_range(200, 1000);
 			t += 200;
@@ -605,10 +603,6 @@ static int iwl_pcie_prepare_card_hw(struct iwl_trans *trans)
 
 	IWL_ERR(trans, "Couldn't prepare the card\n");
 
-out:
-	iwl_clear_bit(trans, CSR_DBG_LINK_PWR_MGMT_REG,
-		      CSR_RESET_LINK_PWR_MGMT_DISABLED);
-
 	return ret;
 }