mac80211: update encap offload patches to the latest version

Minor cleanup and code reorganization, along with a change to not disable
offload anymore when a tkip or sw crypto key is added

Signed-off-by: Felix Fietkau <nbd@nbd.name>

1 files changed, 0 insertions, 651 deletions

diff --git a/package/kernel/mac80211/patches/subsys/314-mac80211-rework-tx-encapsulation-offload-API.patch b/package/kernel/mac80211/patches/subsys/314-mac80211-rework-tx-encapsulation-offload-API.patch
deleted file mode 100644
index 4f0d264947..0000000000
--- a/package/kernel/mac80211/patches/subsys/314-mac80211-rework-tx-encapsulation-offload-API.patch
+++ /dev/null
@@ -1,651 +0,0 @@
-From: Felix Fietkau <nbd@nbd.name>
-Date: Thu, 13 Aug 2020 15:37:11 +0200
-Subject: [PATCH] mac80211: rework tx encapsulation offload API
-
-The current API (which lets the driver turn on/off per vif directly) has a
-number of limitations:
-- it does not deal with AP_VLAN
-- conditions for enabling (no tkip, no monitor) are only checked at
-  add_interface time
-- no way to indicate 4-addr support
-
-In order to address this, store offload flags in struct ieee80211_vif
-(easy to extend for decap offload later). mac80211 initially sets the enable
-flag, but gives the driver a chance to modify it before its settings are
-applied. In addition to the .add_interface op, a .update_vif_offload op is
-introduced, which can be used for runtime changes.
-
-If a driver can't disable encap offload at runtime, or if it has some extra
-limitations, it can simply override the flags within those ops.
-
-Support for encap offload with 4-address mode interfaces can be enabled
-by setting a flag from .add_interface or .update_vif_offload.
-
-Signed-off-by: Felix Fietkau <nbd@nbd.name>
----
-
---- a/drivers/net/wireless/ath/ath11k/mac.c
-+++ b/drivers/net/wireless/ath/ath11k/mac.c
-@@ -4150,6 +4150,35 @@ static int ath11k_set_he_mu_sounding_mod
- 	return ret;
- }
- 
-+static void ath11k_mac_op_update_vif_offload(struct ieee80211_hw *hw,
-+					    struct ieee80211_vif *vif)
-+{
-+	struct ath11k *ar = hw->priv;
-+	struct ath11k_base *ab = ar->ab;
-+	struct ath11k_vif *arvif = ath11k_vif_to_arvif(vif);
-+	u32 param_id, param_value;
-+	int ret;
-+
-+	param_id = WMI_VDEV_PARAM_TX_ENCAP_TYPE;
-+	if (ath11k_frame_mode != ATH11K_HW_TXRX_ETHERNET ||
-+	    (vif->type != NL80211_IFTYPE_STATION &&
-+	     vif->type != NL80211_IFTYPE_AP))
-+		vif->offload_flags &= ~IEEE80211_OFFLOAD_ENCAP_ENABLED;
-+
-+	if (vif->offload_flags & IEEE80211_OFFLOAD_ENCAP_ENABLED)
-+		param_value = ATH11K_HW_TXRX_ETHERNET;
-+	else
-+		param_value = ATH11K_HW_TXRX_NATIVE_WIFI;
-+
-+	ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
-+					    param_id, param_value);
-+	if (ret) {
-+		ath11k_warn(ab, "failed to set vdev %d tx encap mode: %d\n",
-+			    arvif->vdev_id, ret);
-+		vif->offload_flags &= ~IEEE80211_OFFLOAD_ENCAP_ENABLED;
-+	}
-+}
-+
- static int ath11k_mac_op_add_interface(struct ieee80211_hw *hw,
- 				       struct ieee80211_vif *vif)
- {
-@@ -4159,7 +4188,6 @@ static int ath11k_mac_op_add_interface(s
- 	struct vdev_create_params vdev_param = {0};
- 	struct peer_create_params peer_param;
- 	u32 param_id, param_value;
--	int hw_encap = 0;
- 	u16 nss;
- 	int i;
- 	int ret;
-@@ -4253,30 +4281,7 @@ static int ath11k_mac_op_add_interface(s
- 	list_add(&arvif->list, &ar->arvifs);
- 	spin_unlock_bh(&ar->data_lock);
- 
--	param_id = WMI_VDEV_PARAM_TX_ENCAP_TYPE;
--	if (ath11k_frame_mode == ATH11K_HW_TXRX_ETHERNET)
--		switch (vif->type) {
--		case NL80211_IFTYPE_STATION:
--		case NL80211_IFTYPE_AP_VLAN:
--		case NL80211_IFTYPE_AP:
--			hw_encap = 1;
--			break;
--		default:
--			break;
--		}
--
--	if (ieee80211_set_hw_80211_encap(vif, hw_encap))
--		param_value = ATH11K_HW_TXRX_ETHERNET;
--	else
--		param_value = ATH11K_HW_TXRX_NATIVE_WIFI;
--
--	ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
--					    param_id, param_value);
--	if (ret) {
--		ath11k_warn(ab, "failed to set vdev %d tx encap mode: %d\n",
--			    arvif->vdev_id, ret);
--		goto err_vdev_del;
--	}
-+	ath11k_mac_op_update_vif_offload(hw, vif);
- 
- 	nss = get_num_chains(ar->cfg_tx_chainmask) ? : 1;
- 	ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
-@@ -5599,6 +5604,7 @@ static const struct ieee80211_ops ath11k
- 	.reconfig_complete              = ath11k_mac_op_reconfig_complete,
- 	.add_interface                  = ath11k_mac_op_add_interface,
- 	.remove_interface		= ath11k_mac_op_remove_interface,
-+	.update_vif_offload		= ath11k_mac_op_update_vif_offload,
- 	.config                         = ath11k_mac_op_config,
- 	.bss_info_changed               = ath11k_mac_op_bss_info_changed,
- 	.configure_filter		= ath11k_mac_op_configure_filter,
-@@ -5852,6 +5858,7 @@ static int __ath11k_mac_register(struct
- 	ieee80211_hw_set(ar->hw, QUEUE_CONTROL);
- 	ieee80211_hw_set(ar->hw, SUPPORTS_TX_FRAG);
- 	ieee80211_hw_set(ar->hw, REPORTS_LOW_ACK);
-+	ieee80211_hw_set(ar->hw, SUPPORTS_TX_ENCAP_OFFLOAD);
- 	if (ht_cap & WMI_HT_CAP_ENABLED) {
- 		ieee80211_hw_set(ar->hw, AMPDU_AGGREGATION);
- 		ieee80211_hw_set(ar->hw, TX_AMPDU_SETUP_IN_HW);
---- a/include/net/mac80211.h
-+++ b/include/net/mac80211.h
-@@ -1603,6 +1603,21 @@ enum ieee80211_vif_flags {
- 	IEEE80211_VIF_GET_NOA_UPDATE		= BIT(3),
- };
- 
-+
-+/**
-+ * enum ieee80211_offload_flags - virtual interface offload flags
-+ *
-+ * @IEEE80211_OFFLOAD_ENCAP_ENABLED: tx encapsulation offload is enabled
-+ *	The driver supports sending frames passed as 802.3 frames by mac80211.
-+ *	It must also support sending 802.11 packets for the same interface.
-+ * @IEEE80211_OFFLOAD_ENCAP_4ADDR: support 4-address mode encapsulation offload
-+ */
-+
-+enum ieee80211_offload_flags {
-+	IEEE80211_OFFLOAD_ENCAP_ENABLED		= BIT(0),
-+	IEEE80211_OFFLOAD_ENCAP_4ADDR		= BIT(1),
-+};
-+
- /**
-  * struct ieee80211_vif - per-interface data
-  *
-@@ -1623,6 +1638,11 @@ enum ieee80211_vif_flags {
-  *	these need to be set (or cleared) when the interface is added
-  *	or, if supported by the driver, the interface type is changed
-  *	at runtime, mac80211 will never touch this field
-+ * @offloaad_flags: hardware offload capabilities/flags for this interface.
-+ *	These are initialized by mac80211 before calling .add_interface,
-+ *	.change_interface or .update_vif_offload and updated by the driver
-+ *	within these ops, based on supported features or runtime change
-+ *	restrictions.
-  * @hw_queue: hardware queue for each AC
-  * @cab_queue: content-after-beacon (DTIM beacon really) queue, AP mode only
-  * @chanctx_conf: The channel context this interface is assigned to, or %NULL
-@@ -1659,6 +1679,7 @@ struct ieee80211_vif {
- 	struct ieee80211_chanctx_conf __rcu *chanctx_conf;
- 
- 	u32 driver_flags;
-+	u32 offload_flags;
- 
- #ifdef CPTCFG_MAC80211_DEBUGFS
- 	struct dentry *debugfs_dir;
-@@ -2325,6 +2346,9 @@ struct ieee80211_txq {
-  *	aggregating MPDUs with the same keyid, allowing mac80211 to keep Tx
-  *	A-MPDU sessions active while rekeying with Extended Key ID.
-  *
-+ * @IEEE80211_HW_SUPPORTS_TX_ENCAP_OFFLOAD: Hardware supports tx encapsulation
-+ *	offload
-+ *
-  * @NUM_IEEE80211_HW_FLAGS: number of hardware flags, used for sizing arrays
-  */
- enum ieee80211_hw_flags {
-@@ -2377,6 +2401,7 @@ enum ieee80211_hw_flags {
- 	IEEE80211_HW_SUPPORTS_MULTI_BSSID,
- 	IEEE80211_HW_SUPPORTS_ONLY_HE_MULTI_BSSID,
- 	IEEE80211_HW_AMPDU_KEYBORDER_SUPPORT,
-+	IEEE80211_HW_SUPPORTS_TX_ENCAP_OFFLOAD,
- 
- 	/* keep last, obviously */
- 	NUM_IEEE80211_HW_FLAGS
-@@ -3811,6 +3836,8 @@ enum ieee80211_reconfig_type {
-  * @set_tid_config: Apply TID specific configurations. This callback may sleep.
-  * @reset_tid_config: Reset TID specific configuration for the peer.
-  *	This callback may sleep.
-+ * @update_vif_config: Update virtual interface offload flags
-+ *	This callback may sleep.
-  */
- struct ieee80211_ops {
- 	void (*tx)(struct ieee80211_hw *hw,
-@@ -4122,6 +4149,8 @@ struct ieee80211_ops {
- 	int (*reset_tid_config)(struct ieee80211_hw *hw,
- 				struct ieee80211_vif *vif,
- 				struct ieee80211_sta *sta, u8 tids);
-+	void (*update_vif_offload)(struct ieee80211_hw *hw,
-+				   struct ieee80211_vif *vif);
- };
- 
- /**
---- a/net/mac80211/cfg.c
-+++ b/net/mac80211/cfg.c
-@@ -504,6 +504,7 @@ static int ieee80211_del_key(struct wiph
- 	struct ieee80211_local *local = sdata->local;
- 	struct sta_info *sta;
- 	struct ieee80211_key *key = NULL;
-+	bool recalc_offload = false;
- 	int ret;
- 
- 	mutex_lock(&local->sta_mtx);
-@@ -528,6 +529,7 @@ static int ieee80211_del_key(struct wiph
- 		goto out_unlock;
- 	}
- 
-+	recalc_offload = key->conf.cipher == WLAN_CIPHER_SUITE_TKIP;
- 	ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION);
- 
- 	ret = 0;
-@@ -535,6 +537,9 @@ static int ieee80211_del_key(struct wiph
- 	mutex_unlock(&local->key_mtx);
- 	mutex_unlock(&local->sta_mtx);
- 
-+	if (recalc_offload)
-+		ieee80211_recalc_offload(local);
-+
- 	return ret;
- }
- 
---- a/net/mac80211/debugfs.c
-+++ b/net/mac80211/debugfs.c
-@@ -408,6 +408,7 @@ static const char *hw_flag_names[] = {
- 	FLAG(SUPPORTS_MULTI_BSSID),
- 	FLAG(SUPPORTS_ONLY_HE_MULTI_BSSID),
- 	FLAG(AMPDU_KEYBORDER_SUPPORT),
-+	FLAG(SUPPORTS_TX_ENCAP_OFFLOAD),
- #undef FLAG
- };
- 
---- a/net/mac80211/driver-ops.h
-+++ b/net/mac80211/driver-ops.h
-@@ -1385,4 +1385,19 @@ static inline int drv_reset_tid_config(s
- 
- 	return ret;
- }
-+
-+static inline void drv_update_vif_offload(struct ieee80211_local *local,
-+					  struct ieee80211_sub_if_data *sdata)
-+{
-+	might_sleep();
-+	check_sdata_in_driver(sdata);
-+
-+	if (!local->ops->update_vif_offload)
-+		return;
-+
-+	trace_drv_update_vif_offload(local, sdata);
-+	local->ops->update_vif_offload(&local->hw, &sdata->vif);
-+	trace_drv_return_void(local);
-+}
-+
- #endif /* __MAC80211_DRIVER_OPS */
---- a/net/mac80211/ieee80211_i.h
-+++ b/net/mac80211/ieee80211_i.h
-@@ -990,8 +990,6 @@ struct ieee80211_sub_if_data {
- 	} debugfs;
- #endif
- 
--	bool hw_80211_encap;
--
- 	/* must be last, dynamically sized area in this! */
- 	struct ieee80211_vif vif;
- };
-@@ -1769,6 +1767,7 @@ void ieee80211_del_virtual_monitor(struc
- bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
- void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata,
- 			      bool update_bss);
-+void ieee80211_recalc_offload(struct ieee80211_local *local);
- 
- static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
- {
---- a/net/mac80211/iface.c
-+++ b/net/mac80211/iface.c
-@@ -43,6 +43,7 @@
-  */
- 
- static void ieee80211_iface_work(struct work_struct *work);
-+static void ieee80211_set_vif_encap_ops(struct ieee80211_sub_if_data *sdata);
- 
- bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata)
- {
-@@ -348,6 +349,99 @@ static int ieee80211_check_queues(struct
- 	return 0;
- }
- 
-+static bool ieee80211_iftype_supports_encap_offload(enum nl80211_iftype iftype)
-+{
-+	switch (iftype) {
-+	case NL80211_IFTYPE_AP:
-+	case NL80211_IFTYPE_P2P_GO:
-+	case NL80211_IFTYPE_P2P_CLIENT:
-+	case NL80211_IFTYPE_STATION:
-+		return true;
-+	default:
-+		return false;
-+	}
-+}
-+
-+static bool ieee80211_set_sdata_offload_flags(struct ieee80211_sub_if_data *sdata)
-+{
-+	struct ieee80211_local *local = sdata->local;
-+	struct ieee80211_key *key;
-+	u32 flags;
-+
-+	flags = sdata->vif.offload_flags;
-+
-+	if (ieee80211_hw_check(&local->hw, SUPPORTS_TX_ENCAP_OFFLOAD) &&
-+	    ieee80211_iftype_supports_encap_offload(sdata->vif.type)) {
-+		flags |= IEEE80211_OFFLOAD_ENCAP_ENABLED;
-+		mutex_lock(&local->key_mtx);
-+		list_for_each_entry(key, &sdata->key_list, list) {
-+			if (key->conf.cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
-+			    key->conf.cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
-+			    key->conf.cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256 ||
-+			    key->conf.cipher == WLAN_CIPHER_SUITE_BIP_CMAC_256)
-+				continue;
-+			if (key->conf.cipher == WLAN_CIPHER_SUITE_TKIP ||
-+			    !(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
-+				flags &= ~IEEE80211_OFFLOAD_ENCAP_ENABLED;
-+		}
-+		mutex_unlock(&local->key_mtx);
-+
-+		if (!ieee80211_hw_check(&local->hw, SUPPORTS_TX_FRAG) &&
-+		    local->hw.wiphy->frag_threshold != (u32)-1)
-+			flags &= ~IEEE80211_OFFLOAD_ENCAP_ENABLED;
-+
-+		if (local->monitors)
-+			flags &= ~IEEE80211_OFFLOAD_ENCAP_ENABLED;
-+	} else {
-+		flags &= ~IEEE80211_OFFLOAD_ENCAP_ENABLED;
-+	}
-+
-+	if (sdata->vif.offload_flags == flags)
-+		return false;
-+
-+	sdata->vif.offload_flags = flags;
-+	return true;
-+}
-+
-+
-+static void ieee80211_recalc_sdata_offload(struct ieee80211_sub_if_data *sdata)
-+{
-+	struct ieee80211_local *local = sdata->local;
-+	struct ieee80211_sub_if_data *vsdata;
-+
-+	if (ieee80211_set_sdata_offload_flags(sdata)) {
-+		drv_update_vif_offload(local, sdata);
-+		ieee80211_set_vif_encap_ops(sdata);
-+	}
-+
-+	list_for_each_entry(vsdata, &local->interfaces, list) {
-+		if (vsdata->vif.type != NL80211_IFTYPE_AP_VLAN ||
-+		    vsdata->bss != &sdata->u.ap)
-+			continue;
-+
-+		ieee80211_set_vif_encap_ops(vsdata);
-+	}
-+}
-+
-+void ieee80211_recalc_offload(struct ieee80211_local *local)
-+{
-+	struct ieee80211_sub_if_data *sdata;
-+
-+	if (!ieee80211_hw_check(&local->hw, SUPPORTS_TX_ENCAP_OFFLOAD))
-+		return;
-+
-+	mutex_lock(&local->iflist_mtx);
-+
-+	list_for_each_entry(sdata, &local->interfaces, list) {
-+		if (!ieee80211_sdata_running(sdata))
-+			continue;
-+
-+		ieee80211_recalc_sdata_offload(sdata);
-+	}
-+
-+	mutex_unlock(&local->iflist_mtx);
-+}
-+
- void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
- 				    const int offset)
- {
-@@ -587,6 +681,7 @@ int ieee80211_do_open(struct wireless_de
- 		if (rtnl_dereference(sdata->bss->beacon)) {
- 			ieee80211_vif_vlan_copy_chanctx(sdata);
- 			netif_carrier_on(dev);
-+			ieee80211_set_vif_encap_ops(sdata);
- 		} else {
- 			netif_carrier_off(dev);
- 		}
-@@ -616,6 +711,7 @@ int ieee80211_do_open(struct wireless_de
- 
- 		ieee80211_adjust_monitor_flags(sdata, 1);
- 		ieee80211_configure_filter(local);
-+		ieee80211_recalc_offload(local);
- 		mutex_lock(&local->mtx);
- 		ieee80211_recalc_idle(local);
- 		mutex_unlock(&local->mtx);
-@@ -625,10 +721,13 @@ int ieee80211_do_open(struct wireless_de
- 	default:
- 		if (coming_up) {
- 			ieee80211_del_virtual_monitor(local);
-+			ieee80211_set_sdata_offload_flags(sdata);
- 
- 			res = drv_add_interface(local, sdata);
- 			if (res)
- 				goto err_stop;
-+
-+			ieee80211_set_vif_encap_ops(sdata);
- 			res = ieee80211_check_queues(sdata,
- 				ieee80211_vif_type_p2p(&sdata->vif));
- 			if (res)
-@@ -1286,61 +1385,6 @@ static const struct net_device_ops ieee8
- 
- };
- 
--static void __ieee80211_set_hw_80211_encap(struct ieee80211_sub_if_data *sdata,
--					   bool enable)
--{
--	sdata->dev->netdev_ops = enable ? &ieee80211_dataif_8023_ops :
--					  &ieee80211_dataif_ops;
--	sdata->hw_80211_encap = enable;
--}
--
--bool ieee80211_set_hw_80211_encap(struct ieee80211_vif *vif, bool enable)
--{
--	struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
--	struct ieee80211_local *local = sdata->local;
--	struct ieee80211_sub_if_data *iter;
--	struct ieee80211_key *key;
--
--	mutex_lock(&local->iflist_mtx);
--	list_for_each_entry(iter, &local->interfaces, list) {
--		struct ieee80211_sub_if_data *disable = NULL;
--
--		if (vif->type == NL80211_IFTYPE_MONITOR) {
--			disable = iter;
--			__ieee80211_set_hw_80211_encap(iter, false);
--		} else if (iter->vif.type == NL80211_IFTYPE_MONITOR) {
--			disable = sdata;
--			enable = false;
--		}
--		if (disable)
--			sdata_dbg(disable,
--				  "disable hw 80211 encap due to mon co-exist\n");
--	}
--	mutex_unlock(&local->iflist_mtx);
--
--	if (enable == sdata->hw_80211_encap)
--		return enable;
--
--	if (!sdata->dev)
--		return false;
--
--	if (!ieee80211_hw_check(&local->hw, SUPPORTS_TX_FRAG) &&
--	    (local->hw.wiphy->frag_threshold != (u32)-1))
--		enable = false;
--
--	mutex_lock(&sdata->local->key_mtx);
--	list_for_each_entry(key, &sdata->key_list, list) {
--		if (key->conf.cipher == WLAN_CIPHER_SUITE_TKIP)
--			enable = false;
--	}
--	mutex_unlock(&sdata->local->key_mtx);
--
--	__ieee80211_set_hw_80211_encap(sdata, enable);
--
--	return enable;
--}
--EXPORT_SYMBOL(ieee80211_set_hw_80211_encap);
--
- static void ieee80211_if_free(struct net_device *dev)
- {
- 	free_percpu(netdev_tstats(dev));
-@@ -1371,6 +1415,51 @@ static void ieee80211_if_setup_no_queue(
- #endif
- }
- 
-+static void ieee80211_set_vif_encap_ops(struct ieee80211_sub_if_data *sdata)
-+{
-+	struct ieee80211_local *local = sdata->local;
-+	struct ieee80211_sub_if_data *bss = sdata;
-+	struct ieee80211_key *key;
-+	bool enabled;
-+
-+	if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) {
-+		if (!sdata->bss)
-+			return;
-+
-+		bss = container_of(sdata->bss, struct ieee80211_sub_if_data, u.ap);
-+	}
-+
-+	if (!ieee80211_hw_check(&local->hw, SUPPORTS_TX_ENCAP_OFFLOAD) ||
-+	    !ieee80211_iftype_supports_encap_offload(bss->vif.type))
-+		return;
-+
-+	enabled = bss->vif.offload_flags & IEEE80211_OFFLOAD_ENCAP_ENABLED;
-+	if (sdata->wdev.use_4addr &&
-+	    !(bss->vif.offload_flags & IEEE80211_OFFLOAD_ENCAP_4ADDR))
-+		enabled = false;
-+
-+	/*
-+	 * Encapsulation offload cannot be used with software crypto, and a per-VLAN
-+	 * key may have been set
-+	 */
-+	if (enabled && sdata->vif.type == NL80211_IFTYPE_AP_VLAN) {
-+		mutex_lock(&local->key_mtx);
-+		list_for_each_entry(key, &sdata->key_list, list) {
-+			if (key->conf.cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
-+			    key->conf.cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
-+			    key->conf.cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256 ||
-+			    key->conf.cipher == WLAN_CIPHER_SUITE_BIP_CMAC_256)
-+				continue;
-+			if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
-+				enabled = false;
-+		}
-+		mutex_unlock(&local->key_mtx);
-+	}
-+
-+	sdata->dev->netdev_ops = enabled ? &ieee80211_dataif_8023_ops :
-+					   &ieee80211_dataif_ops;
-+}
-+
- static void ieee80211_iface_work(struct work_struct *work)
- {
- 	struct ieee80211_sub_if_data *sdata =
-@@ -1553,7 +1642,6 @@ static void ieee80211_setup_sdata(struct
- 	sdata->vif.bss_conf.txpower = INT_MIN; /* unset */
- 
- 	sdata->noack_map = 0;
--	sdata->hw_80211_encap = false;
- 
- 	/* only monitor/p2p-device differ */
- 	if (sdata->dev) {
-@@ -1688,6 +1776,7 @@ static int ieee80211_runtime_change_ifty
- 
- 	ieee80211_teardown_sdata(sdata);
- 
-+	ieee80211_set_sdata_offload_flags(sdata);
- 	ret = drv_change_interface(local, sdata, internal_type, p2p);
- 	if (ret)
- 		type = ieee80211_vif_type_p2p(&sdata->vif);
-@@ -1700,6 +1789,7 @@ static int ieee80211_runtime_change_ifty
- 	ieee80211_check_queues(sdata, type);
- 
- 	ieee80211_setup_sdata(sdata, type);
-+	ieee80211_set_vif_encap_ops(sdata);
- 
- 	err = ieee80211_do_open(&sdata->wdev, false);
- 	WARN(err, "type change: do_open returned %d", err);
---- a/net/mac80211/key.c
-+++ b/net/mac80211/key.c
-@@ -177,13 +177,6 @@ static int ieee80211_key_enable_hw_accel
- 		}
- 	}
- 
--	/* TKIP countermeasures don't work in encap offload mode */
--	if (key->conf.cipher == WLAN_CIPHER_SUITE_TKIP &&
--	    sdata->hw_80211_encap) {
--		sdata_dbg(sdata, "TKIP is not allowed in hw 80211 encap mode\n");
--		return -EINVAL;
--	}
--
- 	ret = drv_set_key(key->local, SET_KEY, sdata,
- 			  sta ? &sta->sta : NULL, &key->conf);
- 
-@@ -219,14 +212,6 @@ static int ieee80211_key_enable_hw_accel
- 	case WLAN_CIPHER_SUITE_CCMP_256:
- 	case WLAN_CIPHER_SUITE_GCMP:
- 	case WLAN_CIPHER_SUITE_GCMP_256:
--		/* We cannot do software crypto of data frames with
--		 * encapsulation offload enabled. However for 802.11w to
--		 * function properly we need cmac/gmac keys.
--		 */
--		if (sdata->hw_80211_encap)
--			return -EINVAL;
--		/* Fall through */
--
- 	case WLAN_CIPHER_SUITE_AES_CMAC:
- 	case WLAN_CIPHER_SUITE_BIP_CMAC_256:
- 	case WLAN_CIPHER_SUITE_BIP_GMAC_128:
-@@ -824,6 +809,7 @@ int ieee80211_key_link(struct ieee80211_
- 	 */
- 	bool delay_tailroom = sdata->vif.type == NL80211_IFTYPE_STATION;
- 	int ret = -EOPNOTSUPP;
-+	bool recalc_offload = false;
- 
- 	mutex_lock(&sdata->local->key_mtx);
- 
-@@ -864,11 +850,15 @@ int ieee80211_key_link(struct ieee80211_
- 	key->local = sdata->local;
- 	key->sdata = sdata;
- 	key->sta = sta;
-+	recalc_offload = !old_key && key->conf.cipher == WLAN_CIPHER_SUITE_TKIP;
- 
- 	increment_tailroom_need_count(sdata);
- 
- 	ret = ieee80211_key_replace(sdata, sta, pairwise, old_key, key);
- 
-+	if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
-+		recalc_offload = true;
-+
- 	if (!ret) {
- 		ieee80211_debugfs_key_add(key);
- 		ieee80211_key_destroy(old_key, delay_tailroom);
-@@ -879,6 +869,9 @@ int ieee80211_key_link(struct ieee80211_
-  out:
- 	mutex_unlock(&sdata->local->key_mtx);
- 
-+	if (recalc_offload)
-+		ieee80211_recalc_offload(sdata->local);
-+
- 	return ret;
- }
- 
---- a/net/mac80211/trace.h
-+++ b/net/mac80211/trace.h
-@@ -2733,6 +2733,12 @@ TRACE_EVENT(drv_get_ftm_responder_stats,
- 	)
- );
- 
-+DEFINE_EVENT(local_sdata_addr_evt, drv_update_vif_offload,
-+	TP_PROTO(struct ieee80211_local *local,
-+		 struct ieee80211_sub_if_data *sdata),
-+	TP_ARGS(local, sdata)
-+);
-+
- #endif /* !__MAC80211_DRIVER_TRACE || TRACE_HEADER_MULTI_READ */
- 
- #undef TRACE_INCLUDE_PATH
---- a/net/mac80211/tx.c
-+++ b/net/mac80211/tx.c
-@@ -4264,11 +4264,6 @@ netdev_tx_t ieee80211_subif_start_xmit_8
- 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- 	struct sta_info *sta;
- 
--	if (WARN_ON(!sdata->hw_80211_encap)) {
--		kfree_skb(skb);
--		return NETDEV_TX_OK;
--	}
--
- 	if (unlikely(skb->len < ETH_HLEN)) {
- 		kfree_skb(skb);
- 		return NETDEV_TX_OK;