Merge tag 'wireless-drivers-next-for-davem-2018-10-02' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 4.20

First set of new features for 4.20. mt76 driver is going through major
refactoring and that's why there are so many mt76 patches. iwlwifi is
also under heavy development and smaller changes to other drivers.

Also wireless-drivers was merged to fix a conflict between the two trees.

Major changes:

ath10k

* limit available channels via DT ieee80211-freq-limit

wil6210

* add 802.11r Fast Roaming support for AP and station modes

* add support for channel 4

iwlwifi

* new FW API handling

* some improvements in the PCI recovery mechanism

* enable a new scanning feature;

* continued work on HE (mostly radiotap)

* TKIP implementation in new devices

* work continues for new 22560 hardware

mt76

* add support for Alfa AWUS036ACM

* lots of refactoring to make it easier to add new hardware support

* prepare for adding mt76x0e (pci-e variant) support

* add CONFIG_MT76x0E kconfig symbol

brcmfmac

* add support CYW89342 mini-PCIe device

* add 4-way handshake offload detection for FT-802.1X

* enable NL80211_EXT_FEATURE_CQM_RSSI_LIST

* fix for proper support of 160MHz bandwidth

rtl8xxxu

* add rtl8188ctv support
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 64 insertions, 27 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index d46f3fbea46e..c78d017749d3 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -19,11 +19,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
  * The full GNU General Public License is included in this distribution
  * in the file called COPYING.
  *
@@ -559,8 +554,6 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 
 	hw->wiphy->max_remain_on_channel_duration = 10000;
 	hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
-	/* we can compensate an offset of up to 3 channels = 15 MHz */
-	hw->wiphy->max_adj_channel_rssi_comp = 3 * 5;
 
 	/* Extract MAC address */
 	memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
@@ -1035,6 +1028,7 @@ static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
 
 	mvmvif->phy_ctxt = NULL;
 	memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
+	memset(&mvmvif->probe_resp_data, 0, sizeof(mvmvif->probe_resp_data));
 }
 
 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
@@ -1124,7 +1118,9 @@ int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
 		 * would do.
 		 */
 		clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
+#ifdef CONFIG_PM
 		iwl_mvm_d0i3_enable_tx(mvm, NULL);
+#endif
 	}
 
 	return ret;
@@ -1162,7 +1158,9 @@ static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
 	mutex_lock(&mvm->mutex);
 
 	clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
+#ifdef CONFIG_PM
 	iwl_mvm_d0i3_enable_tx(mvm, NULL);
+#endif
 	ret = iwl_mvm_update_quotas(mvm, true, NULL);
 	if (ret)
 		IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
@@ -1308,19 +1306,28 @@ static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 				s16 tx_power)
 {
-	struct iwl_dev_tx_power_cmd cmd = {
-		.v3.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC),
-		.v3.mac_context_id =
+	int len;
+	union {
+		struct iwl_dev_tx_power_cmd v5;
+		struct iwl_dev_tx_power_cmd_v4 v4;
+	} cmd = {
+		.v5.v3.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC),
+		.v5.v3.mac_context_id =
 			cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
-		.v3.pwr_restriction = cpu_to_le16(8 * tx_power),
+		.v5.v3.pwr_restriction = cpu_to_le16(8 * tx_power),
 	};
-	int len = sizeof(cmd);
 
 	if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
-		cmd.v3.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
+		cmd.v5.v3.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
 
-	if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_TX_POWER_ACK))
-		len = sizeof(cmd.v3);
+	if (fw_has_api(&mvm->fw->ucode_capa,
+		       IWL_UCODE_TLV_API_REDUCE_TX_POWER))
+		len = sizeof(cmd.v5);
+	else if (fw_has_capa(&mvm->fw->ucode_capa,
+			     IWL_UCODE_TLV_CAPA_TX_POWER_ACK))
+		len = sizeof(cmd.v4);
+	else
+		len = sizeof(cmd.v4.v3);
 
 	return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd);
 }
@@ -1333,6 +1340,7 @@ static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
 	int ret;
 
 	mvmvif->mvm = mvm;
+	RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL);
 
 	/*
 	 * make sure D0i3 exit is completed, otherwise a target access
@@ -1497,6 +1505,7 @@ static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+	struct iwl_probe_resp_data *probe_data;
 
 	iwl_mvm_prepare_mac_removal(mvm, vif);
 
@@ -1506,6 +1515,12 @@ static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
 
 	mutex_lock(&mvm->mutex);
 
+	probe_data = rcu_dereference_protected(mvmvif->probe_resp_data,
+					       lockdep_is_held(&mvm->mutex));
+	RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL);
+	if (probe_data)
+		kfree_rcu(probe_data, rcu_head);
+
 	if (mvm->bf_allowed_vif == mvmvif) {
 		mvm->bf_allowed_vif = NULL;
 		vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
@@ -2455,6 +2470,9 @@ static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
 
 	iwl_mvm_mac_ctxt_remove(mvm, vif);
 
+	kfree(mvmvif->ap_wep_key);
+	mvmvif->ap_wep_key = NULL;
+
 	mutex_unlock(&mvm->mutex);
 }
 
@@ -2927,7 +2945,8 @@ static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
 			iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
 		}
 
-		iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band);
+		iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band,
+				     false);
 		ret = iwl_mvm_update_sta(mvm, vif, sta);
 	} else if (old_state == IEEE80211_STA_ASSOC &&
 		   new_state == IEEE80211_STA_AUTHORIZED) {
@@ -2943,9 +2962,16 @@ static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
 		/* enable beacon filtering */
 		WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
 
-		iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band);
+		iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band,
+				     true);
 
-		ret = 0;
+		/* if wep is used, need to set the key for the station now */
+		if (vif->type == NL80211_IFTYPE_AP && mvmvif->ap_wep_key)
+			ret = iwl_mvm_set_sta_key(mvm, vif, sta,
+						  mvmvif->ap_wep_key,
+						  STA_KEY_IDX_INVALID);
+		else
+			ret = 0;
 	} else if (old_state == IEEE80211_STA_AUTHORIZED &&
 		   new_state == IEEE80211_STA_ASSOC) {
 		/* disable beacon filtering */
@@ -3128,8 +3154,15 @@ static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
 
 	switch (key->cipher) {
 	case WLAN_CIPHER_SUITE_TKIP:
-		key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
-		key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
+		if (!mvm->trans->cfg->gen2) {
+			key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
+			key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
+		} else if (vif->type == NL80211_IFTYPE_STATION) {
+			key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE;
+		} else {
+			IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n");
+			return -EOPNOTSUPP;
+		}
 		break;
 	case WLAN_CIPHER_SUITE_CCMP:
 	case WLAN_CIPHER_SUITE_GCMP:
@@ -3144,13 +3177,17 @@ static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
 		break;
 	case WLAN_CIPHER_SUITE_WEP40:
 	case WLAN_CIPHER_SUITE_WEP104:
-		/* For non-client mode, only use WEP keys for TX as we probably
-		 * don't have a station yet anyway and would then have to keep
-		 * track of the keys, linking them to each of the clients/peers
-		 * as they appear. For now, don't do that, for performance WEP
-		 * offload doesn't really matter much, but we need it for some
-		 * other offload features in client mode.
-		 */
+		if (vif->type == NL80211_IFTYPE_AP) {
+			struct iwl_mvm_vif *mvmvif =
+				iwl_mvm_vif_from_mac80211(vif);
+
+			mvmvif->ap_wep_key = kmemdup(key,
+						     sizeof(*key) + key->keylen,
+						     GFP_KERNEL);
+			if (!mvmvif->ap_wep_key)
+				return -ENOMEM;
+		}
+
 		if (vif->type != NL80211_IFTYPE_STATION)
 			return 0;
 		break;