Merge tag 'iwlwifi-next-for-john-2014-10-29' of...

Merge tag 'iwlwifi-next-for-john-2014-10-29' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next

Emmanuel Grumbach <egrumbach@gmail.com> says:

"The big new thing here is netdetect which allows the
firmware to wake up the platform when a specific network
is detected. Along with that I have fixes for d3 operation.
The usual amount of rate scaling stuff - we now support STBC.
The other commit that stands out is Johannes's work on
devcoredump. He basically starts to use the standard
infrastructure he built."
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/iwlwifi/Kconfig

@@ -59,6 +59,7 @@ config IWLDVM
 
 config IWLMVM
 	tristate "Intel Wireless WiFi MVM Firmware support"
+	select BACKPORT_WANT_DEV_COREDUMP
 	help
 	  This is the driver that supports the MVM firmware which is
 	  currently only available for 7260 and 3160 devices.

drivers/net/wireless/iwlwifi/dvm/lib.c

@@ -418,7 +418,7 @@ void iwlagn_bt_adjust_rssi_monitor(struct iwl_priv *priv, bool rssi_ena)
 
 static bool iwlagn_bt_traffic_is_sco(struct iwl_bt_uart_msg *uart_msg)
 {
-	return BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3 >>
+	return (BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3) >>
 		BT_UART_MSG_FRAME3SCOESCO_POS;
 }
 

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

@@ -1095,6 +1095,7 @@ static void iwlagn_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 			     u32 queues, bool drop)
 {
 	struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
+	u32 scd_queues;
 
 	mutex_lock(&priv->mutex);
 	IWL_DEBUG_MAC80211(priv, "enter\n");
@@ -1108,18 +1109,19 @@ static void iwlagn_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 		goto done;
 	}
 
-	/*
-	 * mac80211 will not push any more frames for transmit
-	 * until the flush is completed
-	 */
-	if (drop) {
-		IWL_DEBUG_MAC80211(priv, "send flush command\n");
-		if (iwlagn_txfifo_flush(priv, 0)) {
+	scd_queues = BIT(priv->cfg->base_params->num_of_queues) - 1;
+	scd_queues &= ~(BIT(IWL_IPAN_CMD_QUEUE_NUM) |
+			BIT(IWL_DEFAULT_CMD_QUEUE_NUM));
+
+	if (vif)
+		scd_queues &= ~BIT(vif->hw_queue[IEEE80211_AC_VO]);
+
+	IWL_DEBUG_TX_QUEUES(priv, "Flushing SCD queues: 0x%x\n", scd_queues);
+	if (iwlagn_txfifo_flush(priv, scd_queues)) {
 		IWL_ERR(priv, "flush request fail\n");
 		goto done;
 	}
-	}
-	IWL_DEBUG_MAC80211(priv, "wait transmit/flush all frames\n");
+	IWL_DEBUG_TX_QUEUES(priv, "wait transmit/flush all frames\n");
 	iwl_trans_wait_tx_queue_empty(priv->trans, 0xffffffff);
 done:
 	mutex_unlock(&priv->mutex);

drivers/net/wireless/iwlwifi/iwl-8000.c

@@ -82,7 +82,8 @@
 #define IWL8000_TX_POWER_VERSION	0xffff /* meaningless */
 
 #define IWL8000_FW_PRE "iwlwifi-8000"
-#define IWL8000_MODULE_FIRMWARE(api) IWL8000_FW_PRE __stringify(api) ".ucode"
+#define IWL8000_MODULE_FIRMWARE(api) \
+	IWL8000_FW_PRE "-" __stringify(api) ".ucode"
 
 #define NVM_HW_SECTION_NUM_FAMILY_8000		10
 #define DEFAULT_NVM_FILE_FAMILY_8000		"iwl_nvm_8000.bin"
@@ -103,6 +104,7 @@ static const struct iwl_base_params iwl8000_base_params = {
 };
 
 static const struct iwl_ht_params iwl8000_ht_params = {
+	.stbc = true,
 	.ldpc = true,
 	.ht40_bands = BIT(IEEE80211_BAND_2GHZ) | BIT(IEEE80211_BAND_5GHZ),
 };

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

@@ -87,6 +87,16 @@ enum iwl_device_family {
 	IWL_DEVICE_FAMILY_8000,
 };
 
+static inline bool iwl_has_secure_boot(u32 hw_rev,
+				       enum iwl_device_family family)
+{
+	/* return 1 only for family 8000 B0 */
+	if ((family == IWL_DEVICE_FAMILY_8000) && (hw_rev & 0xC))
+		return 1;
+
+	return 0;
+}
+
 /*
  * LED mode
  *    IWL_LED_DEFAULT:  use device default
@@ -246,6 +256,7 @@ struct iwl_pwr_tx_backoff {
  * @nvm_hw_section_num: the ID of the HW NVM section
  * @pwr_tx_backoffs: translation table between power limits and backoffs
  * @max_rx_agg_size: max RX aggregation size of the ADDBA request/response
+ * @max_tx_agg_size: max TX aggregation size of the ADDBA request/response
  *
  * We enable the driver to be backward compatible wrt. hardware features.
  * API differences in uCode shouldn't be handled here but through TLVs
@@ -285,6 +296,7 @@ struct iwl_cfg {
 	const char *default_nvm_file;
 	unsigned int max_rx_agg_size;
 	bool disable_dummy_notification;
+	unsigned int max_tx_agg_size;
 };
 
 /*

drivers/net/wireless/iwlwifi/iwl-drv.c

@@ -807,19 +807,16 @@ static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
 			iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 					    tlv_len);
 			drv->fw.mvm_fw = true;
-			drv->fw.img[IWL_UCODE_REGULAR].is_secure = true;
 			break;
 		case IWL_UCODE_TLV_SECURE_SEC_INIT:
 			iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 					    tlv_len);
 			drv->fw.mvm_fw = true;
-			drv->fw.img[IWL_UCODE_INIT].is_secure = true;
 			break;
 		case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
 			iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 					    tlv_len);
 			drv->fw.mvm_fw = true;
-			drv->fw.img[IWL_UCODE_WOWLAN].is_secure = true;
 			break;
 		case IWL_UCODE_TLV_NUM_OF_CPU:
 			if (tlv_len != sizeof(u32))

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

@@ -227,7 +227,6 @@ struct fw_desc {
 
 struct fw_img {
 	struct fw_desc sec[IWL_UCODE_SECTION_MAX];
-	bool is_secure;
 	bool is_dual_cpus;
 };
 

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

@@ -535,9 +535,7 @@ struct iwl_trans_ops {
 	void (*ref)(struct iwl_trans *trans);
 	void (*unref)(struct iwl_trans *trans);
 
-#ifdef CONFIG_IWLWIFI_DEBUGFS
 	struct iwl_trans_dump_data *(*dump_data)(struct iwl_trans *trans);
-#endif
 };
 
 /**
@@ -563,6 +561,7 @@ enum iwl_trans_state {
  *	Set during transport allocation.
  * @hw_id_str: a string with info about HW ID. Set during transport allocation.
  * @pm_support: set to true in start_hw if link pm is supported
+ * @ltr_enabled: set to true if the LTR is enabled
  * @dev_cmd_pool: pool for Tx cmd allocation - for internal use only.
  *	The user should use iwl_trans_{alloc,free}_tx_cmd.
  * @dev_cmd_headroom: room needed for the transport's private use before the
@@ -589,6 +588,7 @@ struct iwl_trans {
 	u8 rx_mpdu_cmd, rx_mpdu_cmd_hdr_size;
 
 	bool pm_support;
+	bool ltr_enabled;
 
 	/* The following fields are internal only */
 	struct kmem_cache *dev_cmd_pool;
@@ -702,7 +702,6 @@ static inline void iwl_trans_unref(struct iwl_trans *trans)
 		trans->ops->unref(trans);
 }
 
-#ifdef CONFIG_IWLWIFI_DEBUGFS
 static inline struct iwl_trans_dump_data *
 iwl_trans_dump_data(struct iwl_trans *trans)
 {
@@ -710,7 +709,6 @@ iwl_trans_dump_data(struct iwl_trans *trans)
 		return NULL;
 	return trans->ops->dump_data(trans);
 }
-#endif
 
 static inline int iwl_trans_send_cmd(struct iwl_trans *trans,
 				     struct iwl_host_cmd *cmd)

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

@@ -72,8 +72,6 @@
 #include "mvm.h"
 #include "iwl-debug.h"
 
-#define BT_ANTENNA_COUPLING_THRESHOLD		(30)
-
 const u32 iwl_bt_ctl_kill_msk[BT_KILL_MSK_MAX] = {
 	[BT_KILL_MSK_DEFAULT] = 0xfffffc00,
 	[BT_KILL_MSK_NEVER] = 0xffffffff,
@@ -302,11 +300,6 @@ static const __le64 iwl_ci_mask[][3] = {
 	},
 };
 
-static const __le32 iwl_bt_mprio_lut[BT_COEX_MULTI_PRIO_LUT_SIZE] = {
-	cpu_to_le32(0x28412201),
-	cpu_to_le32(0x11118451),
-};
-
 struct corunning_block_luts {
 	u8 range;
 	__le32 lut20[BT_COEX_CORUN_LUT_SIZE];
@@ -605,7 +598,7 @@ int iwl_send_bt_init_conf(struct iwl_mvm *mvm)
 
 	bt_cmd->max_kill = cpu_to_le32(5);
 	bt_cmd->bt4_antenna_isolation_thr =
-				cpu_to_le32(BT_ANTENNA_COUPLING_THRESHOLD);
+		cpu_to_le32(IWL_MVM_BT_COEX_ANTENNA_COUPLING_THRS);
 	bt_cmd->bt4_tx_tx_delta_freq_thr = cpu_to_le32(15);
 	bt_cmd->bt4_tx_rx_max_freq0 = cpu_to_le32(15);
 	bt_cmd->override_primary_lut = cpu_to_le32(BT_COEX_INVALID_LUT);
@@ -638,8 +631,8 @@ int iwl_send_bt_init_conf(struct iwl_mvm *mvm)
 
 	memcpy(&bt_cmd->mplut_prio_boost, iwl_bt_prio_boost,
 	       sizeof(iwl_bt_prio_boost));
-	memcpy(&bt_cmd->multiprio_lut, iwl_bt_mprio_lut,
-	       sizeof(iwl_bt_mprio_lut));
+	bt_cmd->multiprio_lut[0] = cpu_to_le32(IWL_MVM_BT_COEX_MPLUT_REG0);
+	bt_cmd->multiprio_lut[1] = cpu_to_le32(IWL_MVM_BT_COEX_MPLUT_REG1);
 
 send_cmd:
 	memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));

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

@@ -102,8 +102,6 @@ static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = {
 
 #undef EVENT_PRIO_ANT
 
-#define BT_ANTENNA_COUPLING_THRESHOLD		(30)
-
 static int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm)
 {
 	if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
@@ -290,11 +288,6 @@ static const __le64 iwl_ci_mask[][3] = {
 	},
 };
 
-static const __le32 iwl_bt_mprio_lut[BT_COEX_MULTI_PRIO_LUT_SIZE] = {
-	cpu_to_le32(0x28412201),
-	cpu_to_le32(0x11118451),
-};
-
 struct corunning_block_luts {
 	u8 range;
 	__le32 lut20[BT_COEX_CORUN_LUT_SIZE];
@@ -593,7 +586,8 @@ int iwl_send_bt_init_conf_old(struct iwl_mvm *mvm)
 	}
 
 	bt_cmd->max_kill = 5;
-	bt_cmd->bt4_antenna_isolation_thr = BT_ANTENNA_COUPLING_THRESHOLD;
+	bt_cmd->bt4_antenna_isolation_thr =
+		IWL_MVM_BT_COEX_ANTENNA_COUPLING_THRS;
 	bt_cmd->bt4_antenna_isolation = iwlwifi_mod_params.ant_coupling;
 	bt_cmd->bt4_tx_tx_delta_freq_thr = 15;
 	bt_cmd->bt4_tx_rx_max_freq0 = 15;
@@ -649,8 +643,8 @@ int iwl_send_bt_init_conf_old(struct iwl_mvm *mvm)
 
 	memcpy(&bt_cmd->bt_prio_boost, iwl_bt_prio_boost,
 	       sizeof(iwl_bt_prio_boost));
-	memcpy(&bt_cmd->bt4_multiprio_lut, iwl_bt_mprio_lut,
-	       sizeof(iwl_bt_mprio_lut));
+	bt_cmd->bt4_multiprio_lut[0] = cpu_to_le32(IWL_MVM_BT_COEX_MPLUT_REG0);
+	bt_cmd->bt4_multiprio_lut[1] = cpu_to_le32(IWL_MVM_BT_COEX_MPLUT_REG1);
 
 send_cmd:
 	memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));

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

@@ -92,8 +92,13 @@
 #define IWL_MVM_BT_COEX_SYNC2SCO		1
 #define IWL_MVM_BT_COEX_CORUNNING		0
 #define IWL_MVM_BT_COEX_MPLUT			1
+#define IWL_MVM_BT_COEX_MPLUT_REG0		0x2e402280
+#define IWL_MVM_BT_COEX_MPLUT_REG1		0x7711a751
+#define IWL_MVM_BT_COEX_ANTENNA_COUPLING_THRS	30
 #define IWL_MVM_FW_MCAST_FILTER_PASS_ALL	0
+#define IWL_MVM_FW_BCAST_FILTER_PASS_ALL	0
 #define IWL_MVM_QUOTA_THRESHOLD			8
 #define IWL_MVM_RS_RSSI_BASED_INIT_RATE         0
+#define IWL_MVM_RS_DISABLE_MIMO			0
 
 #endif /* __MVM_CONSTANTS_H */

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

@@ -121,78 +121,6 @@ static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf,
 	return ret;
 }
 
-static int iwl_dbgfs_fw_error_dump_open(struct inode *inode, struct file *file)
-{
-	struct iwl_mvm *mvm = inode->i_private;
-	int ret;
-
-	if (!mvm)
-		return -EINVAL;
-
-	mutex_lock(&mvm->mutex);
-	if (!mvm->fw_error_dump) {
-		ret = -ENODATA;
-		goto out;
-	}
-
-	file->private_data = mvm->fw_error_dump;
-	mvm->fw_error_dump = NULL;
-	ret = 0;
-
-out:
-	mutex_unlock(&mvm->mutex);
-	return ret;
-}
-
-static ssize_t iwl_dbgfs_fw_error_dump_read(struct file *file,
-					    char __user *user_buf,
-					    size_t count, loff_t *ppos)
-{
-	struct iwl_mvm_dump_ptrs *dump_ptrs = (void *)file->private_data;
-	ssize_t bytes_read = 0;
-	ssize_t bytes_read_trans = 0;
-
-	if (*ppos < dump_ptrs->op_mode_len)
-		bytes_read +=
-			simple_read_from_buffer(user_buf, count, ppos,
-						dump_ptrs->op_mode_ptr,
-						dump_ptrs->op_mode_len);
-
-	if (bytes_read < 0 || *ppos < dump_ptrs->op_mode_len)
-		return bytes_read;
-
-	if (dump_ptrs->trans_ptr) {
-		*ppos -= dump_ptrs->op_mode_len;
-		bytes_read_trans =
-			simple_read_from_buffer(user_buf + bytes_read,
-						count - bytes_read, ppos,
-						dump_ptrs->trans_ptr->data,
-						dump_ptrs->trans_ptr->len);
-		*ppos += dump_ptrs->op_mode_len;
-
-		if (bytes_read_trans >= 0)
-			bytes_read += bytes_read_trans;
-		else if (!bytes_read)
-			/* propagate the failure */
-			return bytes_read_trans;
-	}
-
-	return bytes_read;
-
-}
-
-static int iwl_dbgfs_fw_error_dump_release(struct inode *inode,
-					   struct file *file)
-{
-	struct iwl_mvm_dump_ptrs *dump_ptrs = (void *)file->private_data;
-
-	vfree(dump_ptrs->op_mode_ptr);
-	vfree(dump_ptrs->trans_ptr);
-	kfree(dump_ptrs);
-
-	return 0;
-}
-
 static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
 				   size_t count, loff_t *ppos)
 {
@@ -1250,6 +1178,126 @@ static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf,
 
 	return ret;
 }
+
+#define MAX_NUM_ND_MATCHSETS 10
+
+static ssize_t iwl_dbgfs_netdetect_write(struct iwl_mvm *mvm, char *buf,
+					 size_t count, loff_t *ppos)
+{
+	const char *seps = ",\n";
+	char *buf_ptr = buf;
+	char *value_str = NULL;
+	int ret, i;
+
+	/* TODO: don't free if write is being called several times in one go */
+	if (mvm->nd_config) {
+		kfree(mvm->nd_config->match_sets);
+		kfree(mvm->nd_config);
+		mvm->nd_config = NULL;
+		kfree(mvm->nd_ies);
+		mvm->nd_ies = NULL;
+	}
+
+	mvm->nd_ies = kzalloc(sizeof(*mvm->nd_ies), GFP_KERNEL);
+	if (!mvm->nd_ies)
+		return -ENOMEM;
+
+	mvm->nd_config = kzalloc(sizeof(*mvm->nd_config) +
+				 (11 * sizeof(struct ieee80211_channel *)),
+				 GFP_KERNEL);
+	if (!mvm->nd_config) {
+		ret = -ENOMEM;
+		goto out_free;
+	}
+
+	mvm->nd_config->n_channels = 11;
+	mvm->nd_config->scan_width = NL80211_BSS_CHAN_WIDTH_20;
+	mvm->nd_config->interval = 5;
+	mvm->nd_config->min_rssi_thold = -80;
+	for (i = 0; i < mvm->nd_config->n_channels; i++)
+		mvm->nd_config->channels[i] = &mvm->nvm_data->channels[i];
+
+	mvm->nd_config->match_sets =
+		kcalloc(MAX_NUM_ND_MATCHSETS,
+			sizeof(*mvm->nd_config->match_sets),
+			GFP_KERNEL);
+	if (!mvm->nd_config->match_sets) {
+		ret = -ENOMEM;
+		goto out_free;
+	}
+
+	while ((value_str = strsep(&buf_ptr, seps)) &&
+	       strlen(value_str)) {
+		struct cfg80211_match_set *set;
+
+		if (mvm->nd_config->n_match_sets >= MAX_NUM_ND_MATCHSETS) {
+			ret = -EINVAL;
+			goto out_free;
+		}
+
+		set = &mvm->nd_config->match_sets[mvm->nd_config->n_match_sets];
+		set->ssid.ssid_len = strlen(value_str);
+
+		if (set->ssid.ssid_len > IEEE80211_MAX_SSID_LEN) {
+			ret = -EINVAL;
+			goto out_free;
+		}
+
+		memcpy(set->ssid.ssid, value_str, set->ssid.ssid_len);
+
+		mvm->nd_config->n_match_sets++;
+	}
+
+	ret = count;
+
+	if (mvm->nd_config->n_match_sets)
+		goto out;
+
+out_free:
+	if (mvm->nd_config)
+		kfree(mvm->nd_config->match_sets);
+	kfree(mvm->nd_config);
+	mvm->nd_config = NULL;
+	kfree(mvm->nd_ies);
+	mvm->nd_ies = NULL;
+out:
+	return ret;
+}
+
+static ssize_t
+iwl_dbgfs_netdetect_read(struct file *file, char __user *user_buf,
+			 size_t count, loff_t *ppos)
+{
+	struct iwl_mvm *mvm = file->private_data;
+	size_t bufsz, ret;
+	char *buf;
+	int i, n_match_sets, pos = 0;
+
+	n_match_sets = mvm->nd_config ? mvm->nd_config->n_match_sets : 0;
+
+	bufsz = n_match_sets * (IEEE80211_MAX_SSID_LEN + 1) + 1;
+	buf = kzalloc(bufsz, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	for (i = 0; i < n_match_sets; i++) {
+		if (pos +
+		    mvm->nd_config->match_sets[i].ssid.ssid_len + 2 > bufsz) {
+			ret = -EIO;
+			goto out;
+		}
+
+		memcpy(buf + pos, mvm->nd_config->match_sets[i].ssid.ssid,
+		       mvm->nd_config->match_sets[i].ssid.ssid_len);
+		pos += mvm->nd_config->match_sets[i].ssid.ssid_len;
+		buf[pos++] = '\n';
+	}
+
+	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+out:
+	kfree(buf);
+	return ret;
+}
 #endif
 
 #define PRINT_MVM_REF(ref) do {						\
@@ -1415,12 +1463,6 @@ MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10);
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8);
 
-static const struct file_operations iwl_dbgfs_fw_error_dump_ops = {
-	.open = iwl_dbgfs_fw_error_dump_open,
-	.read = iwl_dbgfs_fw_error_dump_read,
-	.release = iwl_dbgfs_fw_error_dump_release,
-};
-
 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256);
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256);
@@ -1428,6 +1470,7 @@ MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256);
 
 #ifdef CONFIG_PM_SLEEP
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8);
+MVM_DEBUGFS_READ_WRITE_FILE_OPS(netdetect, 384);
 #endif
 
 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
@@ -1446,7 +1489,6 @@ int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
 			     S_IWUSR | S_IRUSR);
 	MVM_DEBUGFS_ADD_FILE(nic_temp, dbgfs_dir, S_IRUSR);
 	MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR);
-	MVM_DEBUGFS_ADD_FILE(fw_error_dump, dbgfs_dir, S_IRUSR);
 	MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR);
 	MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR);
 	MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir,
@@ -1487,6 +1529,7 @@ int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
 	if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR,
 				 mvm->debugfs_dir, &mvm->d3_wake_sysassert))
 		goto err;
+	MVM_DEBUGFS_ADD_FILE(netdetect, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
 #endif
 
 	if (!debugfs_create_u8("low_latency_agg_frame_limit", S_IRUSR | S_IWUSR,

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

@@ -68,13 +68,46 @@
 
 /* Power Management Commands, Responses, Notifications */
 
+/**
+ * enum iwl_ltr_config_flags - masks for LTR config command flags
+ * @LTR_CFG_FLAG_FEATURE_ENABLE: Feature operational status
+ * @LTR_CFG_FLAG_HW_DIS_ON_SHADOW_REG_ACCESS: allow LTR change on shadow
+ *	memory access
+ * @LTR_CFG_FLAG_HW_EN_SHRT_WR_THROUGH: allow LTR msg send on ANY LTR
+ *	reg change
+ * @LTR_CFG_FLAG_HW_DIS_ON_D0_2_D3: allow LTR msg send on transition from
+ *	D0 to D3
+ * @LTR_CFG_FLAG_SW_SET_SHORT: fixed static short LTR register
+ * @LTR_CFG_FLAG_SW_SET_LONG: fixed static short LONG register
+ * @LTR_CFG_FLAG_DENIE_C10_ON_PD: allow going into C10 on PD
+ */
+enum iwl_ltr_config_flags {
+	LTR_CFG_FLAG_FEATURE_ENABLE = BIT(0),
+	LTR_CFG_FLAG_HW_DIS_ON_SHADOW_REG_ACCESS = BIT(1),
+	LTR_CFG_FLAG_HW_EN_SHRT_WR_THROUGH = BIT(2),
+	LTR_CFG_FLAG_HW_DIS_ON_D0_2_D3 = BIT(3),
+	LTR_CFG_FLAG_SW_SET_SHORT = BIT(4),
+	LTR_CFG_FLAG_SW_SET_LONG = BIT(5),
+	LTR_CFG_FLAG_DENIE_C10_ON_PD = BIT(6),
+};
+
+/**
+ * struct iwl_ltr_config_cmd - configures the LTR
+ * @flags: See %enum iwl_ltr_config_flags
+ */
+struct iwl_ltr_config_cmd {
+	__le32 flags;
+	__le32 static_long;
+	__le32 static_short;
+} __packed;
+
 /* Radio LP RX Energy Threshold measured in dBm */
 #define POWER_LPRX_RSSI_THRESHOLD	75
 #define POWER_LPRX_RSSI_THRESHOLD_MAX	94
 #define POWER_LPRX_RSSI_THRESHOLD_MIN	30
 
 /**
- * enum iwl_scan_flags - masks for power table command flags
+ * enum iwl_power_flags - masks for power table command flags
  * @POWER_FLAGS_POWER_SAVE_ENA_MSK: '1' Allow to save power by turning off
  *		receiver and transmitter. '0' - does not allow.
  * @POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK: '0' Driver disables power management,

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

@@ -157,6 +157,7 @@ enum {
 	/* Power - legacy power table command */
 	POWER_TABLE_CMD = 0x77,
 	PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION = 0x78,
+	LTR_CONFIG = 0xee,
 
 	/* Thermal Throttling*/
 	REPLY_THERMAL_MNG_BACKOFF = 0x7e,

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

@@ -480,6 +480,15 @@ int iwl_mvm_up(struct iwl_mvm *mvm)
 	/* Initialize tx backoffs to the minimal possible */
 	iwl_mvm_tt_tx_backoff(mvm, 0);
 
+	if (mvm->trans->ltr_enabled) {
+		struct iwl_ltr_config_cmd cmd = {
+			.flags = cpu_to_le32(LTR_CFG_FLAG_FEATURE_ENABLE),
+		};
+
+		WARN_ON(iwl_mvm_send_cmd_pdu(mvm, LTR_CONFIG, 0,
+					     sizeof(cmd), &cmd));
+	}
+
 	ret = iwl_mvm_power_update_device(mvm);
 	if (ret)
 		goto error;

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

@@ -197,8 +197,7 @@ static void iwl_mvm_mac_tsf_id_iter(void *_data, u8 *mac,
 /*
  * Get the mask of the queues used by the vif
  */
-u32 iwl_mvm_mac_get_queues_mask(struct iwl_mvm *mvm,
-				struct ieee80211_vif *vif)
+u32 iwl_mvm_mac_get_queues_mask(struct ieee80211_vif *vif)
 {
 	u32 qmask = 0, ac;
 
@@ -227,7 +226,7 @@ static void iwl_mvm_mac_iface_iterator(void *_data, u8 *mac,
 	}
 
 	/* Mark the queues used by the vif */
-	data->used_hw_queues |= iwl_mvm_mac_get_queues_mask(data->mvm, vif);
+	data->used_hw_queues |= iwl_mvm_mac_get_queues_mask(vif);
 
 	/* Mark MAC IDs as used by clearing the available bit, and
 	 * (below) mark TSFs as used if their existing use is not

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

@@ -69,6 +69,7 @@
 #include <linux/etherdevice.h>
 #include <linux/ip.h>
 #include <linux/if_arp.h>
+#include <linux/devcoredump.h>
 #include <net/mac80211.h>
 #include <net/ieee80211_radiotap.h>
 #include <net/tcp.h>
@@ -526,7 +527,8 @@ static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
 	}
 
 	if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
-	    !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status))
+	    !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
+	    !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
 		goto drop;
 
 	/* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
@@ -678,10 +680,51 @@ static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
 	memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
 }
 
-#ifdef CONFIG_IWLWIFI_DEBUGFS
+static ssize_t iwl_mvm_read_coredump(char *buffer, loff_t offset, size_t count,
+				     const void *data, size_t datalen)
+{
+	const struct iwl_mvm_dump_ptrs *dump_ptrs = data;
+	ssize_t bytes_read;
+	ssize_t bytes_read_trans;
+
+	if (offset < dump_ptrs->op_mode_len) {
+		bytes_read = min_t(ssize_t, count,
+				   dump_ptrs->op_mode_len - offset);
+		memcpy(buffer, (u8 *)dump_ptrs->op_mode_ptr + offset,
+		       bytes_read);
+		offset += bytes_read;
+		count -= bytes_read;
+
+		if (count == 0)
+			return bytes_read;
+	} else {
+		bytes_read = 0;
+	}
+
+	if (!dump_ptrs->trans_ptr)
+		return bytes_read;
+
+	offset -= dump_ptrs->op_mode_len;
+	bytes_read_trans = min_t(ssize_t, count,
+				 dump_ptrs->trans_ptr->len - offset);
+	memcpy(buffer + bytes_read,
+	       (u8 *)dump_ptrs->trans_ptr->data + offset,
+	       bytes_read_trans);
+
+	return bytes_read + bytes_read_trans;
+}
+
+static void iwl_mvm_free_coredump(const void *data)
+{
+	const struct iwl_mvm_dump_ptrs *fw_error_dump = data;
+
+	vfree(fw_error_dump->op_mode_ptr);
+	vfree(fw_error_dump->trans_ptr);
+	kfree(fw_error_dump);
+}
+
 void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
 {
-	static char *env[] = { "DRIVER=iwlwifi", "EVENT=error_dump", NULL };
 	struct iwl_fw_error_dump_file *dump_file;
 	struct iwl_fw_error_dump_data *dump_data;
 	struct iwl_fw_error_dump_info *dump_info;
@@ -694,10 +737,7 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
 
 	lockdep_assert_held(&mvm->mutex);
 
-	if (mvm->fw_error_dump)
-		return;
-
-	fw_error_dump = kzalloc(sizeof(*mvm->fw_error_dump), GFP_KERNEL);
+	fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL);
 	if (!fw_error_dump)
 		return;
 
@@ -772,12 +812,10 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
 	if (fw_error_dump->trans_ptr)
 		file_len += fw_error_dump->trans_ptr->len;
 	dump_file->file_len = cpu_to_le32(file_len);
-	mvm->fw_error_dump = fw_error_dump;
 
-	/* notify the userspace about the error we had */
-	kobject_uevent_env(&mvm->hw->wiphy->dev.kobj, KOBJ_CHANGE, env);
+	dev_coredumpm(mvm->trans->dev, THIS_MODULE, fw_error_dump, 0,
+		      GFP_KERNEL, iwl_mvm_read_coredump, iwl_mvm_free_coredump);
 }
-#endif
 
 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
 {
@@ -1085,7 +1123,7 @@ static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
 					struct ieee80211_vif *vif)
 {
-	u32 tfd_msk = iwl_mvm_mac_get_queues_mask(mvm, vif);
+	u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
 
 	if (tfd_msk) {
 		mutex_lock(&mvm->mutex);
@@ -1381,6 +1419,9 @@ bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
 		.cmd = cmd,
 	};
 
+	if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
+		return false;
+
 	memset(cmd, 0, sizeof(*cmd));
 	cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
 	cmd->max_macs = ARRAY_SIZE(cmd->macs);
@@ -1734,6 +1775,13 @@ iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
 	if (changes & BSS_CHANGED_BEACON &&
 	    iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
 		IWL_WARN(mvm, "Failed updating beacon data\n");
+
+	if (changes & BSS_CHANGED_TXPOWER) {
+		IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
+				bss_conf->txpower);
+		iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
+	}
+
 }
 
 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
@@ -2162,24 +2210,8 @@ static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
 
 	mvm->scan_status = IWL_MVM_SCAN_SCHED;
 
-	if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN)) {
-		ret = iwl_mvm_config_sched_scan(mvm, vif, req, ies);
+	ret = iwl_mvm_scan_offload_start(mvm, vif, req, ies);
 	if (ret)
-			goto err;
-	}
-
-	ret = iwl_mvm_config_sched_scan_profiles(mvm, req);
-	if (ret)
-		goto err;
-
-	if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN)
-		ret = iwl_mvm_unified_sched_scan_lmac(mvm, vif, req, ies);
-	else
-		ret = iwl_mvm_sched_scan_start(mvm, req);
-
-	if (!ret)
-		goto out;
-err:
 		mvm->scan_status = IWL_MVM_SCAN_NONE;
 out:
 	mutex_unlock(&mvm->mutex);
@@ -2367,14 +2399,19 @@ static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
 	/* Set the node address */
 	memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
 
+	lockdep_assert_held(&mvm->mutex);
+
+	spin_lock_bh(&mvm->time_event_lock);
+
+	if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
+		spin_unlock_bh(&mvm->time_event_lock);
+		return -EIO;
+	}
+
 	te_data->vif = vif;
 	te_data->duration = duration;
 	te_data->id = HOT_SPOT_CMD;
 
-	lockdep_assert_held(&mvm->mutex);
-
-	spin_lock_bh(&mvm->time_event_lock);
-	list_add_tail(&te_data->list, &mvm->time_event_list);
 	spin_unlock_bh(&mvm->time_event_lock);
 
 	/*
@@ -2430,22 +2467,23 @@ static int iwl_mvm_roc(struct ieee80211_hw *hw,
 	IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
 			   duration, type);
 
+	mutex_lock(&mvm->mutex);
+
 	switch (vif->type) {
 	case NL80211_IFTYPE_STATION:
 		/* Use aux roc framework (HS20) */
 		ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
 					       vif, duration);
-		return ret;
+		goto out_unlock;
 	case NL80211_IFTYPE_P2P_DEVICE:
 		/* handle below */
 		break;
 	default:
 		IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
-		return -EINVAL;
+		ret = -EINVAL;
+		goto out_unlock;
 	}
 
-	mutex_lock(&mvm->mutex);
-
 	for (i = 0; i < NUM_PHY_CTX; i++) {
 		phy_ctxt = &mvm->phy_ctxts[i];
 		if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
@@ -2996,18 +3034,24 @@ static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
 	mvmvif = iwl_mvm_vif_from_mac80211(vif);
 	mvmsta = iwl_mvm_sta_from_staid_protected(mvm, mvmvif->ap_sta_id);
 
-	if (WARN_ON_ONCE(!mvmsta))
-		goto done;
+	if (WARN_ON_ONCE(!mvmsta)) {
+		mutex_unlock(&mvm->mutex);
+		return;
+	}
 
 	if (drop) {
 		if (iwl_mvm_flush_tx_path(mvm, mvmsta->tfd_queue_msk, true))
 			IWL_ERR(mvm, "flush request fail\n");
+		mutex_unlock(&mvm->mutex);
 	} else {
-		iwl_trans_wait_tx_queue_empty(mvm->trans,
-					      mvmsta->tfd_queue_msk);
-	}
-done:
+		u32 tfd_queue_msk = mvmsta->tfd_queue_msk;
 		mutex_unlock(&mvm->mutex);
+
+		/* this can take a while, and we may need/want other operations
+		 * to succeed while doing this, so do it without the mutex held
+		 */
+		iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_queue_msk);
+	}
 }
 
 const struct ieee80211_ops iwl_mvm_hw_ops = {

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

@@ -648,7 +648,6 @@ struct iwl_mvm {
 	/* -1 for always, 0 for never, >0 for that many times */
 	s8 restart_fw;
 	struct work_struct fw_error_dump_wk;
-	struct iwl_mvm_dump_ptrs *fw_error_dump;
 
 #ifdef CONFIG_IWLWIFI_LEDS
 	struct led_classdev led;
@@ -659,6 +658,10 @@ struct iwl_mvm {
 #ifdef CONFIG_PM_SLEEP
 	struct wiphy_wowlan_support wowlan;
 	int gtk_ivlen, gtk_icvlen, ptk_ivlen, ptk_icvlen;
+
+	/* sched scan settings for net detect */
+	struct cfg80211_sched_scan_request *nd_config;
+	struct ieee80211_scan_ies *nd_ies;
 #ifdef CONFIG_IWLWIFI_DEBUGFS
 	u32 d3_wake_sysassert; /* must be u32 for debugfs_create_bool */
 	bool d3_test_active;
@@ -905,8 +908,7 @@ int iwl_mvm_mac_ctxt_add(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 int iwl_mvm_mac_ctxt_changed(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 			     bool force_assoc_off, const u8 *bssid_override);
 int iwl_mvm_mac_ctxt_remove(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
-u32 iwl_mvm_mac_get_queues_mask(struct iwl_mvm *mvm,
-				struct ieee80211_vif *vif);
+u32 iwl_mvm_mac_get_queues_mask(struct ieee80211_vif *vif);
 int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm *mvm,
 				    struct ieee80211_vif *vif);
 int iwl_mvm_rx_beacon_notif(struct iwl_mvm *mvm,
@@ -949,6 +951,10 @@ int iwl_mvm_config_sched_scan_profiles(struct iwl_mvm *mvm,
 				       struct cfg80211_sched_scan_request *req);
 int iwl_mvm_sched_scan_start(struct iwl_mvm *mvm,
 			     struct cfg80211_sched_scan_request *req);
+int iwl_mvm_scan_offload_start(struct iwl_mvm *mvm,
+			       struct ieee80211_vif *vif,
+			       struct cfg80211_sched_scan_request *req,
+			       struct ieee80211_scan_ies *ies);
 int iwl_mvm_scan_offload_stop(struct iwl_mvm *mvm, bool notify);
 int iwl_mvm_rx_scan_offload_results(struct iwl_mvm *mvm,
 				    struct iwl_rx_cmd_buffer *rxb,
@@ -1206,11 +1212,9 @@ void iwl_mvm_recalc_tdls_state(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 void iwl_mvm_mac_mgd_protect_tdls_discover(struct ieee80211_hw *hw,
 					   struct ieee80211_vif *vif);
 
+struct ieee80211_vif *iwl_mvm_get_bss_vif(struct iwl_mvm *mvm);
+
 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error);
-#ifdef CONFIG_IWLWIFI_DEBUGFS
 void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm);
-#else
-static inline void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm) {}
-#endif
 
 #endif /* __IWL_MVM_H__ */

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

@@ -336,6 +336,7 @@ static const char *const iwl_mvm_cmd_strings[REPLY_MAX] = {
 	CMD(DTS_MEASUREMENT_NOTIFICATION),
 	CMD(REPLY_THERMAL_MNG_BACKOFF),
 	CMD(MAC_PM_POWER_TABLE),
+	CMD(LTR_CONFIG),
 	CMD(BT_COEX_CI),
 	CMD(BT_COEX_UPDATE_SW_BOOST),
 	CMD(BT_COEX_UPDATE_CORUN_LUT),
@@ -402,6 +403,9 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
 	if (cfg->max_rx_agg_size)
 		hw->max_rx_aggregation_subframes = cfg->max_rx_agg_size;
 
+	if (cfg->max_tx_agg_size)
+		hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size;
+
 	op_mode = hw->priv;
 	op_mode->ops = &iwl_mvm_ops;
 
@@ -583,16 +587,18 @@ static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
 	ieee80211_unregister_hw(mvm->hw);
 
 	kfree(mvm->scan_cmd);
-	if (mvm->fw_error_dump) {
-		vfree(mvm->fw_error_dump->op_mode_ptr);
-		vfree(mvm->fw_error_dump->trans_ptr);
-		kfree(mvm->fw_error_dump);
-	}
 	kfree(mvm->mcast_filter_cmd);
 	mvm->mcast_filter_cmd = NULL;
 
 #if defined(CONFIG_PM_SLEEP) && defined(CONFIG_IWLWIFI_DEBUGFS)
 	kfree(mvm->d3_resume_sram);
+	if (mvm->nd_config) {
+		kfree(mvm->nd_config->match_sets);
+		kfree(mvm->nd_config);
+		mvm->nd_config = NULL;
+		kfree(mvm->nd_ies);
+		mvm->nd_ies = NULL;
+	}
 #endif
 
 	iwl_trans_op_mode_leave(mvm->trans);

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

@@ -505,10 +505,11 @@ static const char *rs_pretty_lq_type(enum iwl_table_type type)
 static inline void rs_dump_rate(struct iwl_mvm *mvm, const struct rs_rate *rate,
 				const char *prefix)
 {
-	IWL_DEBUG_RATE(mvm, "%s: (%s: %d) ANT: %s BW: %d SGI: %d LDPC: %d\n",
+	IWL_DEBUG_RATE(mvm,
+		       "%s: (%s: %d) ANT: %s BW: %d SGI: %d LDPC: %d STBC %d\n",
 		       prefix, rs_pretty_lq_type(rate->type),
 		       rate->index, rs_pretty_ant(rate->ant),
-		       rate->bw, rate->sgi, rate->ldpc);
+		       rate->bw, rate->sgi, rate->ldpc, rate->stbc);
 }
 
 static void rs_rate_scale_clear_window(struct iwl_rate_scale_data *window)
@@ -741,6 +742,12 @@ static u32 ucode_rate_from_rs_rate(struct iwl_mvm *mvm,
 		IWL_ERR(mvm, "Invalid rate->type %d\n", rate->type);
 	}
 
+	if (is_siso(rate) && rate->stbc) {
+		/* To enable STBC we need to set both a flag and ANT_AB */
+		ucode_rate |= RATE_MCS_ANT_AB_MSK;
+		ucode_rate |= RATE_MCS_VHT_STBC_MSK;
+	}
+
 	ucode_rate |= rate->bw;
 	if (rate->sgi)
 		ucode_rate |= RATE_MCS_SGI_MSK;
@@ -785,6 +792,8 @@ static int rs_rate_from_ucode_rate(const u32 ucode_rate,
 		rate->sgi = true;
 	if (ucode_rate & RATE_MCS_LDPC_MSK)
 		rate->ldpc = true;
+	if (ucode_rate & RATE_MCS_VHT_STBC_MSK)
+		rate->stbc = true;
 
 	rate->bw = ucode_rate & RATE_MCS_CHAN_WIDTH_MSK;
 
@@ -794,7 +803,7 @@ static int rs_rate_from_ucode_rate(const u32 ucode_rate,
 
 		if (nss == 1) {
 			rate->type = LQ_HT_SISO;
-			WARN_ON_ONCE(num_of_ant != 1);
+			WARN_ON_ONCE(!rate->stbc && num_of_ant != 1);
 		} else if (nss == 2) {
 			rate->type = LQ_HT_MIMO2;
 			WARN_ON_ONCE(num_of_ant != 2);
@@ -992,7 +1001,15 @@ static void rs_get_lower_rate_down_column(struct iwl_lq_sta *lq_sta,
 static inline bool rs_rate_match(struct rs_rate *a,
 				 struct rs_rate *b)
 {
-	return (a->type == b->type) && (a->ant == b->ant) && (a->sgi == b->sgi);
+	bool ant_match;
+
+	if (a->stbc)
+		ant_match = (b->ant == ANT_A || b->ant == ANT_B);
+	else
+		ant_match = (a->ant == b->ant);
+
+	return (a->type == b->type) && (a->bw == b->bw) && (a->sgi == b->sgi)
+		&& ant_match;
 }
 
 static u32 rs_ch_width_from_mac_flags(enum mac80211_rate_control_flags flags)
@@ -1225,7 +1242,7 @@ void iwl_mvm_rs_tx_status(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 	IWL_DEBUG_RATE(mvm, "reduced txpower: %d\n", reduced_txp);
 done:
 	/* See if there's a better rate or modulation mode to try. */
-	if (sta && sta->supp_rates[info->band])
+	if (sta->supp_rates[info->band])
 		rs_rate_scale_perform(mvm, sta, lq_sta, tid);
 }
 
@@ -1623,6 +1640,8 @@ static int rs_switch_to_column(struct iwl_mvm *mvm,
 		else
 			rate->type = LQ_LEGACY_G;
 
+		rate->bw = RATE_MCS_CHAN_WIDTH_20;
+		rate->ldpc = false;
 		rate_mask = lq_sta->active_legacy_rate;
 	} else if (column->mode == RS_SISO) {
 		rate->type = lq_sta->is_vht ? LQ_VHT_SISO : LQ_HT_SISO;
@@ -1634,8 +1653,11 @@ static int rs_switch_to_column(struct iwl_mvm *mvm,
 		WARN_ON_ONCE("Bad column mode");
 	}
 
+	if (column->mode != RS_LEGACY) {
 		rate->bw = rs_bw_from_sta_bw(sta);
 		rate->ldpc = lq_sta->ldpc;
+	}
+
 	search_tbl->column = col_id;
 	rs_set_expected_tpt_table(lq_sta, search_tbl);
 
@@ -1754,6 +1776,29 @@ static enum rs_action rs_get_rate_action(struct iwl_mvm *mvm,
 	return action;
 }
 
+static bool rs_stbc_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
+			  struct iwl_lq_sta *lq_sta)
+{
+	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
+	struct ieee80211_vif *vif = mvmsta->vif;
+	bool sta_ps_disabled = (vif->type == NL80211_IFTYPE_STATION &&
+				!vif->bss_conf.ps);
+
+	/* Our chip supports Tx STBC and the peer is an HT/VHT STA which
+	 * supports STBC of at least 1*SS
+	 */
+	if (!lq_sta->stbc)
+		return false;
+
+	if (!mvm->ps_disabled && !sta_ps_disabled)
+		return false;
+
+	if (!iwl_mvm_bt_coex_is_mimo_allowed(mvm, sta))
+		return false;
+
+	return true;
+}
+
 static void rs_get_adjacent_txp(struct iwl_mvm *mvm, int index,
 				int *weaker, int *stronger)
 {
@@ -2675,6 +2720,11 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 		if (mvm->cfg->ht_params->ldpc &&
 		    (ht_cap->cap & IEEE80211_HT_CAP_LDPC_CODING))
 			lq_sta->ldpc = true;
+
+		if (mvm->cfg->ht_params->stbc &&
+		    (num_of_ant(mvm->fw->valid_tx_ant) > 1) &&
+		    (ht_cap->cap & IEEE80211_HT_CAP_RX_STBC))
+			lq_sta->stbc = true;
 	} else {
 		rs_vht_set_enabled_rates(sta, vht_cap, lq_sta);
 		lq_sta->is_vht = true;
@@ -2682,8 +2732,16 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 		if (mvm->cfg->ht_params->ldpc &&
 		    (vht_cap->cap & IEEE80211_VHT_CAP_RXLDPC))
 			lq_sta->ldpc = true;
+
+		if (mvm->cfg->ht_params->stbc &&
+		    (num_of_ant(mvm->fw->valid_tx_ant) > 1) &&
+		    (vht_cap->cap & IEEE80211_VHT_CAP_RXSTBC_MASK))
+			lq_sta->stbc = true;
 	}
 
+	if (IWL_MVM_RS_DISABLE_MIMO)
+		lq_sta->active_mimo2_rate = 0;
+
 	lq_sta->max_legacy_rate_idx = find_last_bit(&lq_sta->active_legacy_rate,
 						    BITS_PER_LONG);
 	lq_sta->max_siso_rate_idx = find_last_bit(&lq_sta->active_siso_rate,
@@ -2692,11 +2750,11 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 						   BITS_PER_LONG);
 
 	IWL_DEBUG_RATE(mvm,
-		       "RATE MASK: LEGACY=%lX SISO=%lX MIMO2=%lX VHT=%d LDPC=%d\n",
+		       "RATE MASK: LEGACY=%lX SISO=%lX MIMO2=%lX VHT=%d LDPC=%d STBC%d\n",
 		       lq_sta->active_legacy_rate,
 		       lq_sta->active_siso_rate,
 		       lq_sta->active_mimo2_rate,
-		       lq_sta->is_vht, lq_sta->ldpc);
+		       lq_sta->is_vht, lq_sta->ldpc, lq_sta->stbc);
 	IWL_DEBUG_RATE(mvm, "MAX RATE: LEGACY=%d SISO=%d MIMO2=%d\n",
 		       lq_sta->max_legacy_rate_idx,
 		       lq_sta->max_siso_rate_idx,
@@ -2820,6 +2878,7 @@ static void rs_fill_rates_for_column(struct iwl_mvm *mvm,
  * rate[15] 0x800D Legacy | ANT: B Rate: 6 Mbps
  */
 static void rs_build_rates_table(struct iwl_mvm *mvm,
+				 struct ieee80211_sta *sta,
 				 struct iwl_lq_sta *lq_sta,
 				 const struct rs_rate *initial_rate)
 {
@@ -2832,6 +2891,7 @@ static void rs_build_rates_table(struct iwl_mvm *mvm,
 	memcpy(&rate, initial_rate, sizeof(rate));
 
 	valid_tx_ant = mvm->fw->valid_tx_ant;
+	rate.stbc = rs_stbc_allow(mvm, sta, lq_sta);
 
 	if (is_siso(&rate)) {
 		num_rates = RS_INITIAL_SISO_NUM_RATES;
@@ -2903,7 +2963,7 @@ static void rs_fill_lq_cmd(struct iwl_mvm *mvm,
 	if (WARN_ON_ONCE(!sta || !initial_rate))
 		return;
 
-	rs_build_rates_table(mvm, lq_sta, initial_rate);
+	rs_build_rates_table(mvm, sta, lq_sta, initial_rate);
 
 	if (num_of_ant(initial_rate->ant) == 1)
 		lq_cmd->single_stream_ant_msk = initial_rate->ant;

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

@@ -208,6 +208,7 @@ struct rs_rate {
 	u32 bw;
 	bool sgi;
 	bool ldpc;
+	bool stbc;
 };
 
 
@@ -331,6 +332,7 @@ struct iwl_lq_sta {
 	u64 last_tx;
 	bool is_vht;
 	bool ldpc;              /* LDPC Rx is supported by the STA */
+	bool stbc;              /* Tx STBC is supported by chip and Rx by STA */
 	enum ieee80211_band band;
 
 	/* The following are bitmaps of rates; IWL_RATE_6M_MASK, etc. */

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

@@ -270,7 +270,8 @@ static void iwl_mvm_scan_condition_iterator(void *data, u8 *mac,
 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 	bool *global_bound = data;
 
-	if (mvmvif->phy_ctxt && mvmvif->phy_ctxt->id < MAX_PHYS)
+	if (vif->type != NL80211_IFTYPE_P2P_DEVICE && mvmvif->phy_ctxt &&
+	    mvmvif->phy_ctxt->id < MAX_PHYS)
 		*global_bound = true;
 }
 
@@ -459,7 +460,8 @@ int iwl_mvm_scan_request(struct iwl_mvm *mvm,
 				basic_ssid ? 1 : 0);
 
 	cmd->tx_cmd.tx_flags = cpu_to_le32(TX_CMD_FLG_SEQ_CTL |
-					   TX_CMD_FLG_BT_DIS);
+					   3 << TX_CMD_FLG_BT_PRIO_POS);
+
 	cmd->tx_cmd.sta_id = mvm->aux_sta.sta_id;
 	cmd->tx_cmd.life_time = cpu_to_le32(TX_CMD_LIFE_TIME_INFINITE);
 	cmd->tx_cmd.rate_n_flags =
@@ -671,6 +673,7 @@ int iwl_mvm_rx_scan_offload_complete_notif(struct iwl_mvm *mvm,
 		mvm->scan_status = IWL_MVM_SCAN_NONE;
 		ieee80211_scan_completed(mvm->hw,
 					 status == IWL_SCAN_OFFLOAD_ABORTED);
+		iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
 	}
 
 	mvm->last_ebs_successful = !ebs_status;
@@ -1006,6 +1009,31 @@ int iwl_mvm_sched_scan_start(struct iwl_mvm *mvm,
 				    sizeof(scan_req), &scan_req);
 }
 
+int iwl_mvm_scan_offload_start(struct iwl_mvm *mvm,
+			       struct ieee80211_vif *vif,
+			       struct cfg80211_sched_scan_request *req,
+			       struct ieee80211_scan_ies *ies)
+{
+	int ret;
+
+	if ((mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN)) {
+		ret = iwl_mvm_config_sched_scan_profiles(mvm, req);
+		if (ret)
+			return ret;
+		ret = iwl_mvm_unified_sched_scan_lmac(mvm, vif, req, ies);
+	} else {
+		ret = iwl_mvm_config_sched_scan(mvm, vif, req, ies);
+		if (ret)
+			return ret;
+		ret = iwl_mvm_config_sched_scan_profiles(mvm, req);
+		if (ret)
+			return ret;
+		ret = iwl_mvm_sched_scan_start(mvm, req);
+	}
+
+	return ret;
+}
+
 static int iwl_mvm_send_scan_offload_abort(struct iwl_mvm *mvm)
 {
 	int ret;
@@ -1080,8 +1108,12 @@ int iwl_mvm_scan_offload_stop(struct iwl_mvm *mvm, bool notify)
 	/*
 	 * Clear the scan status so the next scan requests will succeed. This
 	 * also ensures the Rx handler doesn't do anything, as the scan was
-	 * stopped from above.
+	 * stopped from above. Since the rx handler won't do anything now,
+	 * we have to release the scan reference here.
 	 */
+	if (mvm->scan_status == IWL_MVM_SCAN_OS)
+		iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
+
 	mvm->scan_status = IWL_MVM_SCAN_NONE;
 
 	if (notify) {

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

@@ -609,7 +609,7 @@ int iwl_mvm_alloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 
 	lockdep_assert_held(&mvm->mutex);
 
-	qmask = iwl_mvm_mac_get_queues_mask(mvm, vif);
+	qmask = iwl_mvm_mac_get_queues_mask(vif);
 
 	/*
 	 * The firmware defines the TFD queue mask to only be relevant

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

@@ -305,8 +305,8 @@ static int iwl_mvm_aux_roc_te_handle_notif(struct iwl_mvm *mvm,
 		te_data->running = false;
 		te_data->vif = NULL;
 		te_data->uid = 0;
+		te_data->id = TE_MAX;
 	} else if (le32_to_cpu(notif->action) == TE_V2_NOTIF_HOST_EVENT_START) {
-		set_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status);
 		set_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status);
 		te_data->running = true;
 		ieee80211_ready_on_channel(mvm->hw); /* Start TE */

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

@@ -64,10 +64,6 @@
  *****************************************************************************/
 
 #include "mvm.h"
-#include "iwl-config.h"
-#include "iwl-io.h"
-#include "iwl-csr.h"
-#include "iwl-prph.h"
 
 #define IWL_MVM_TEMP_NOTIF_WAIT_TIMEOUT	HZ
 

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

@@ -175,14 +175,10 @@ static void iwl_mvm_set_tx_cmd_rate(struct iwl_mvm *mvm,
 
 	/*
 	 * for data packets, rate info comes from the table inside the fw. This
-	 * table is controlled by LINK_QUALITY commands. Exclude ctrl port
-	 * frames like EAPOLs which should be treated as mgmt frames. This
-	 * avoids them being sent initially in high rates which increases the
-	 * chances for completion of the 4-Way handshake.
+	 * table is controlled by LINK_QUALITY commands
 	 */
 
-	if (ieee80211_is_data(fc) && sta &&
-	    !(info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO)) {
+	if (ieee80211_is_data(fc) && sta) {
 		tx_cmd->initial_rate_index = 0;
 		tx_cmd->tx_flags |= cpu_to_le32(TX_CMD_FLG_STA_RATE);
 		return;
@@ -193,8 +189,10 @@ static void iwl_mvm_set_tx_cmd_rate(struct iwl_mvm *mvm,
 
 	/* HT rate doesn't make sense for a non data frame */
 	WARN_ONCE(info->control.rates[0].flags & IEEE80211_TX_RC_MCS,
-		  "Got an HT rate for a non data frame 0x%x\n",
-		  info->control.rates[0].flags);
+		  "Got an HT rate (flags:0x%x/mcs:%d) for a non data frame (fc:0x%x)\n",
+		  info->control.rates[0].flags,
+		  info->control.rates[0].idx,
+		  le16_to_cpu(fc));
 
 	rate_idx = info->control.rates[0].idx;
 	/* if the rate isn't a well known legacy rate, take the lowest one */

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

@@ -734,3 +734,40 @@ bool iwl_mvm_is_idle(struct iwl_mvm *mvm)
 
 	return idle;
 }
+
+struct iwl_bss_iter_data {
+	struct ieee80211_vif *vif;
+	bool error;
+};
+
+static void iwl_mvm_bss_iface_iterator(void *_data, u8 *mac,
+				       struct ieee80211_vif *vif)
+{
+	struct iwl_bss_iter_data *data = _data;
+
+	if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
+		return;
+
+	if (data->vif) {
+		data->error = true;
+		return;
+	}
+
+	data->vif = vif;
+}
+
+struct ieee80211_vif *iwl_mvm_get_bss_vif(struct iwl_mvm *mvm)
+{
+	struct iwl_bss_iter_data bss_iter_data = {};
+
+	ieee80211_iterate_active_interfaces_atomic(
+		mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
+		iwl_mvm_bss_iface_iterator, &bss_iter_data);
+
+	if (bss_iter_data.error) {
+		IWL_ERR(mvm, "More than one managed interface active!\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	return bss_iter_data.vif;
+}

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

@@ -133,7 +133,7 @@ static void iwl_pcie_alloc_fw_monitor(struct iwl_trans *trans)
 		break;
 	}
 
-	if (!page)
+	if (WARN_ON_ONCE(!page))
 		return;
 
 	trans_pcie->fw_mon_page = page;
@@ -174,6 +174,7 @@ static void iwl_pcie_apm_config(struct iwl_trans *trans)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	u16 lctl;
+	u16 cap;
 
 	/*
 	 * HW bug W/A for instability in PCIe bus L0S->L1 transition.
@@ -184,16 +185,17 @@ static void iwl_pcie_apm_config(struct iwl_trans *trans)
 	 *    power savings, even without L1.
 	 */
 	pcie_capability_read_word(trans_pcie->pci_dev, PCI_EXP_LNKCTL, &lctl);
-	if (lctl & PCI_EXP_LNKCTL_ASPM_L1) {
-		/* L1-ASPM enabled; disable(!) L0S */
+	if (lctl & PCI_EXP_LNKCTL_ASPM_L1)
 		iwl_set_bit(trans, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED);
-		dev_info(trans->dev, "L1 Enabled; Disabling L0S\n");
-	} else {
-		/* L1-ASPM disabled; enable(!) L0S */
+	else
 		iwl_clear_bit(trans, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED);
-		dev_info(trans->dev, "L1 Disabled; Enabling L0S\n");
-	}
 	trans->pm_support = !(lctl & PCI_EXP_LNKCTL_ASPM_L0S);
+
+	pcie_capability_read_word(trans_pcie->pci_dev, PCI_EXP_DEVCTL2, &cap);
+	trans->ltr_enabled = cap & PCI_EXP_DEVCTL2_LTR_EN;
+	dev_info(trans->dev, "L1 %sabled - LTR %sabled\n",
+		 (lctl & PCI_EXP_LNKCTL_ASPM_L1) ? "En" : "Dis",
+		 trans->ltr_enabled ? "En" : "Dis");
 }
 
 /*
@@ -428,7 +430,7 @@ static int iwl_pcie_apm_stop_master(struct iwl_trans *trans)
 	ret = iwl_poll_bit(trans, CSR_RESET,
 			   CSR_RESET_REG_FLAG_MASTER_DISABLED,
 			   CSR_RESET_REG_FLAG_MASTER_DISABLED, 100);
-	if (ret)
+	if (ret < 0)
 		IWL_WARN(trans, "Master Disable Timed Out, 100 usec\n");
 
 	IWL_DEBUG_INFO(trans, "stop master\n");
@@ -544,7 +546,7 @@ static int iwl_pcie_prepare_card_hw(struct iwl_trans *trans)
 		msleep(25);
 	}
 
-	IWL_DEBUG_INFO(trans, "got NIC after %d iterations\n", iter);
+	IWL_ERR(trans, "Couldn't prepare the card\n");
 
 	return ret;
 }
@@ -744,15 +746,12 @@ static int iwl_pcie_load_given_ucode(struct iwl_trans *trans,
 	int ret = 0;
 	int first_ucode_section;
 
-	IWL_DEBUG_FW(trans,
-		     "working with %s image\n",
-		     image->is_secure ? "Secured" : "Non Secured");
 	IWL_DEBUG_FW(trans,
 		     "working with %s CPU\n",
 		     image->is_dual_cpus ? "Dual" : "Single");
 
 	/* configure the ucode to be ready to get the secured image */
-	if (image->is_secure) {
+	if (iwl_has_secure_boot(trans->hw_rev, trans->cfg->device_family)) {
 		/* set secure boot inspector addresses */
 		iwl_write_prph(trans,
 			       LMPM_SECURE_INSPECTOR_CODE_ADDR,
@@ -788,7 +787,8 @@ static int iwl_pcie_load_given_ucode(struct iwl_trans *trans,
 			       LMPM_SECURE_CPU2_HDR_MEM_SPACE);
 
 		/* load to FW the binary sections of CPU2 */
-		if (image->is_secure)
+		if (iwl_has_secure_boot(trans->hw_rev,
+					trans->cfg->device_family))
 			ret = iwl_pcie_load_cpu_secured_sections(
 							trans, image, 2,
 							&first_ucode_section);
@@ -819,7 +819,7 @@ static int iwl_pcie_load_given_ucode(struct iwl_trans *trans,
 	else
 		iwl_write32(trans, CSR_RESET, 0);
 
-	if (image->is_secure) {
+	if (iwl_has_secure_boot(trans->hw_rev, trans->cfg->device_family)) {
 		/* wait for image verification to complete  */
 		ret = iwl_poll_prph_bit(trans,
 					LMPM_SECURE_BOOT_CPU1_STATUS_ADDR,
@@ -1021,14 +1021,6 @@ static int iwl_trans_pcie_d3_resume(struct iwl_trans *trans,
 		return 0;
 	}
 
-	iwl_pcie_set_pwr(trans, false);
-
-	val = iwl_read32(trans, CSR_RESET);
-	if (val & CSR_RESET_REG_FLAG_NEVO_RESET) {
-		*status = IWL_D3_STATUS_RESET;
-		return 0;
-	}
-
 	/*
 	 * Also enables interrupts - none will happen as the device doesn't
 	 * know we're waking it up, only when the opmode actually tells it
@@ -1043,11 +1035,13 @@ static int iwl_trans_pcie_d3_resume(struct iwl_trans *trans,
 			   CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY,
 			   CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY,
 			   25000);
-	if (ret) {
+	if (ret < 0) {
 		IWL_ERR(trans, "Failed to resume the device (mac ready)\n");
 		return ret;
 	}
 
+	iwl_pcie_set_pwr(trans, false);
+
 	iwl_trans_pcie_tx_reset(trans);
 
 	ret = iwl_pcie_rx_init(trans);
@@ -1056,7 +1050,12 @@ static int iwl_trans_pcie_d3_resume(struct iwl_trans *trans,
 		return ret;
 	}
 
+	val = iwl_read32(trans, CSR_RESET);
+	if (val & CSR_RESET_REG_FLAG_NEVO_RESET)
+		*status = IWL_D3_STATUS_RESET;
+	else
 		*status = IWL_D3_STATUS_ALIVE;
+
 	return 0;
 }
 
@@ -1765,6 +1764,13 @@ static int iwl_trans_pcie_dbgfs_register(struct iwl_trans *trans,
 	IWL_ERR(trans, "failed to create the trans debugfs entry\n");
 	return -ENOMEM;
 }
+#else
+static int iwl_trans_pcie_dbgfs_register(struct iwl_trans *trans,
+					 struct dentry *dir)
+{
+	return 0;
+}
+#endif /*CONFIG_IWLWIFI_DEBUGFS */
 
 static u32 iwl_trans_pcie_get_cmdlen(struct iwl_tfd *tfd)
 {
@@ -2043,13 +2049,6 @@ struct iwl_trans_dump_data *iwl_trans_pcie_dump_data(struct iwl_trans *trans)
 
 	return dump_data;
 }
-#else
-static int iwl_trans_pcie_dbgfs_register(struct iwl_trans *trans,
-					 struct dentry *dir)
-{
-	return 0;
-}
-#endif /*CONFIG_IWLWIFI_DEBUGFS */
 
 static const struct iwl_trans_ops trans_ops_pcie = {
 	.start_hw = iwl_trans_pcie_start_hw,
@@ -2086,9 +2085,7 @@ static const struct iwl_trans_ops trans_ops_pcie = {
 	.release_nic_access = iwl_trans_pcie_release_nic_access,
 	.set_bits_mask = iwl_trans_pcie_set_bits_mask,
 
-#ifdef CONFIG_IWLWIFI_DEBUGFS
 	.dump_data = iwl_trans_pcie_dump_data,
-#endif
 };
 
 struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev,