diff options
Diffstat (limited to 'package/kernel/mac80211/patches/subsys/318-mac80211-rework-tx-encapsulation-offload-API.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/subsys/318-mac80211-rework-tx-encapsulation-offload-API.patch | 613 |
1 files changed, 0 insertions, 613 deletions
diff --git a/package/kernel/mac80211/patches/subsys/318-mac80211-rework-tx-encapsulation-offload-API.patch b/package/kernel/mac80211/patches/subsys/318-mac80211-rework-tx-encapsulation-offload-API.patch deleted file mode 100644 index 811c66499b..0000000000 --- a/package/kernel/mac80211/patches/subsys/318-mac80211-rework-tx-encapsulation-offload-API.patch +++ /dev/null @@ -1,613 +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 -@@ -4304,6 +4304,35 @@ 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) - { -@@ -4313,7 +4342,6 @@ 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; -@@ -4407,30 +4435,7 @@ 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, -@@ -5753,6 +5758,7 @@ 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, -@@ -6034,6 +6040,7 @@ 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 -@@ -1606,6 +1606,21 @@ 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 - * -@@ -1626,6 +1641,11 @@ 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 -@@ -1662,6 +1682,7 @@ struct ieee80211_vif { - struct ieee80211_chanctx_conf __rcu *chanctx_conf; - - u32 driver_flags; -+ u32 offload_flags; - - #ifdef CPTCFG_MAC80211_DEBUGFS - struct dentry *debugfs_dir; -@@ -2328,6 +2349,9 @@ 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 { -@@ -2380,6 +2404,7 @@ 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 -@@ -3814,6 +3839,8 @@ 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, -@@ -4125,6 +4152,8 @@ 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/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 -@@ -1384,4 +1384,19 @@ 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 -@@ -993,8 +993,6 @@ struct ieee80211_sub_if_data { - } debugfs; - #endif - -- bool hw_80211_encap; -- - /* must be last, dynamically sized area in this! */ - struct ieee80211_vif vif; - }; -@@ -1772,6 +1770,7 @@ 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 +349,85 @@ static int ieee80211_check_queues(struct - return 0; - } - -+static bool ieee80211_iftype_supports_encap_offload(enum nl80211_iftype iftype) -+{ -+ switch (iftype) { -+ /* P2P GO and client are mapped to AP/STATION types */ -+ case NL80211_IFTYPE_AP: -+ 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; -+ 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; -+ -+ 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 +667,7 @@ 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 +697,7 @@ 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 +707,13 @@ 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) -@@ -1293,61 +1378,6 @@ 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)); -@@ -1378,6 +1408,32 @@ 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; -+ 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; -+ -+ 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 = -@@ -1560,7 +1616,6 @@ 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) { -@@ -1695,6 +1750,7 @@ 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); -@@ -1707,6 +1763,7 @@ 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; -- fallthrough; -- - case WLAN_CIPHER_SUITE_AES_CMAC: - case WLAN_CIPHER_SUITE_BIP_CMAC_256: - case WLAN_CIPHER_SUITE_BIP_GMAC_128: ---- a/net/mac80211/trace.h -+++ b/net/mac80211/trace.h -@@ -2734,6 +2734,12 @@ 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 -@@ -4178,11 +4178,10 @@ static bool ieee80211_tx_8023(struct iee - - static void ieee80211_8023_xmit(struct ieee80211_sub_if_data *sdata, - struct net_device *dev, struct sta_info *sta, -- struct sk_buff *skb) -+ struct ieee80211_key *key, struct sk_buff *skb) - { - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct ieee80211_local *local = sdata->local; -- struct ieee80211_key *key; - struct tid_ampdu_tx *tid_tx; - u8 tid; - -@@ -4231,7 +4230,6 @@ static void ieee80211_8023_xmit(struct i - info->control.flags |= IEEE80211_TX_CTRL_HW_80211_ENCAP; - info->control.vif = &sdata->vif; - -- key = rcu_dereference(sta->ptk[sta->ptk_idx]); - if (key) - info->control.hw_key = &key->conf; - -@@ -4248,12 +4246,9 @@ netdev_tx_t ieee80211_subif_start_xmit_8 - { - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ethhdr *ehdr = (struct ethhdr *)skb->data; -+ struct ieee80211_key *key; - struct sta_info *sta; -- -- if (WARN_ON(!sdata->hw_80211_encap)) { -- kfree_skb(skb); -- return NETDEV_TX_OK; -- } -+ bool offload = true; - - if (unlikely(skb->len < ETH_HLEN)) { - kfree_skb(skb); -@@ -4262,15 +4257,26 @@ netdev_tx_t ieee80211_subif_start_xmit_8 - - rcu_read_lock(); - -- if (ieee80211_lookup_ra_sta(sdata, skb, &sta)) -+ if (ieee80211_lookup_ra_sta(sdata, skb, &sta)) { - kfree_skb(skb); -- else if (unlikely(IS_ERR_OR_NULL(sta) || !sta->uploaded || -- !test_sta_flag(sta, WLAN_STA_AUTHORIZED) || -- sdata->control_port_protocol == ehdr->h_proto)) -- ieee80211_subif_start_xmit(skb, dev); -+ goto out; -+ } -+ -+ if (unlikely(IS_ERR_OR_NULL(sta) || !sta->uploaded || -+ !test_sta_flag(sta, WLAN_STA_AUTHORIZED) || -+ sdata->control_port_protocol == ehdr->h_proto)) -+ offload = false; -+ else if ((key = rcu_dereference(sta->ptk[sta->ptk_idx])) && -+ (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) || -+ key->conf.cipher == WLAN_CIPHER_SUITE_TKIP)) -+ offload = false; -+ -+ if (offload) -+ ieee80211_8023_xmit(sdata, dev, sta, key, skb); - else -- ieee80211_8023_xmit(sdata, dev, sta, skb); -+ ieee80211_subif_start_xmit(skb, dev); - -+out: - rcu_read_unlock(); - - return NETDEV_TX_OK; |