]> git.kernelconcepts.de Git - karo-tx-linux.git/blobdiff - drivers/net/wireless/ath/ath10k/mac.c
Merge tag 'mac80211-next-for-davem-2015-03-30' of git://git.kernel.org/pub/scm/linux...
[karo-tx-linux.git] / drivers / net / wireless / ath / ath10k / mac.c
index d372ebfd933d16296713ce3dd282fccbf4b20bcb..6fd7189b7b01ab50db86b42dfc2b75bb8bcec0de 100644 (file)
@@ -611,7 +611,7 @@ static int ath10k_monitor_vdev_start(struct ath10k *ar, int vdev_id)
 
        ret = ath10k_vdev_setup_sync(ar);
        if (ret) {
-               ath10k_warn(ar, "failed to synchronize setup for monitor vdev %i: %d\n",
+               ath10k_warn(ar, "failed to synchronize setup for monitor vdev %i start: %d\n",
                            vdev_id, ret);
                return ret;
        }
@@ -658,7 +658,7 @@ static int ath10k_monitor_vdev_stop(struct ath10k *ar)
 
        ret = ath10k_vdev_setup_sync(ar);
        if (ret)
-               ath10k_warn(ar, "failed to synchronise monitor vdev %i: %d\n",
+               ath10k_warn(ar, "failed to synchronize monitor vdev %i stop: %d\n",
                            ar->monitor_vdev_id, ret);
 
        ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %i stopped\n",
@@ -927,8 +927,9 @@ static int ath10k_vdev_start_restart(struct ath10k_vif *arvif, bool restart)
 
        ret = ath10k_vdev_setup_sync(ar);
        if (ret) {
-               ath10k_warn(ar, "failed to synchronise setup for vdev %i: %d\n",
-                           arg.vdev_id, ret);
+               ath10k_warn(ar,
+                           "failed to synchronize setup for vdev %i restart %d: %d\n",
+                           arg.vdev_id, restart, ret);
                return ret;
        }
 
@@ -966,7 +967,7 @@ static int ath10k_vdev_stop(struct ath10k_vif *arvif)
 
        ret = ath10k_vdev_setup_sync(ar);
        if (ret) {
-               ath10k_warn(ar, "failed to syncronise setup for vdev %i: %d\n",
+               ath10k_warn(ar, "failed to synchronize setup for vdev %i stop: %d\n",
                            arvif->vdev_id, ret);
                return ret;
        }
@@ -1182,7 +1183,7 @@ static void ath10k_control_ibss(struct ath10k_vif *arvif,
                if (is_zero_ether_addr(arvif->bssid))
                        return;
 
-               memset(arvif->bssid, 0, ETH_ALEN);
+               eth_zero_addr(arvif->bssid);
 
                return;
        }
@@ -1253,6 +1254,20 @@ static int ath10k_mac_vif_recalc_ps_poll_count(struct ath10k_vif *arvif)
        return 0;
 }
 
+static int ath10k_mac_ps_vif_count(struct ath10k *ar)
+{
+       struct ath10k_vif *arvif;
+       int num = 0;
+
+       lockdep_assert_held(&ar->conf_mutex);
+
+       list_for_each_entry(arvif, &ar->arvifs, list)
+               if (arvif->ps)
+                       num++;
+
+       return num;
+}
+
 static int ath10k_mac_vif_setup_ps(struct ath10k_vif *arvif)
 {
        struct ath10k *ar = arvif->ar;
@@ -1262,13 +1277,24 @@ static int ath10k_mac_vif_setup_ps(struct ath10k_vif *arvif)
        enum wmi_sta_ps_mode psmode;
        int ret;
        int ps_timeout;
+       bool enable_ps;
 
        lockdep_assert_held(&arvif->ar->conf_mutex);
 
        if (arvif->vif->type != NL80211_IFTYPE_STATION)
                return 0;
 
-       if (vif->bss_conf.ps) {
+       enable_ps = arvif->ps;
+
+       if (enable_ps && ath10k_mac_ps_vif_count(ar) > 1 &&
+           !test_bit(ATH10K_FW_FEATURE_MULTI_VIF_PS_SUPPORT,
+                     ar->fw_features)) {
+               ath10k_warn(ar, "refusing to enable ps on vdev %i: not supported by fw\n",
+                           arvif->vdev_id);
+               enable_ps = false;
+       }
+
+       if (enable_ps) {
                psmode = WMI_STA_PS_MODE_ENABLED;
                param = WMI_STA_PS_PARAM_INACTIVITY_TIME;
 
@@ -1782,6 +1808,68 @@ static int ath10k_setup_peer_smps(struct ath10k *ar, struct ath10k_vif *arvif,
                                         ath10k_smps_map[smps]);
 }
 
+static int ath10k_mac_vif_recalc_txbf(struct ath10k *ar,
+                                     struct ieee80211_vif *vif,
+                                     struct ieee80211_sta_vht_cap vht_cap)
+{
+       struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+       int ret;
+       u32 param;
+       u32 value;
+
+       if (!(ar->vht_cap_info &
+             (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
+              IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE |
+              IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
+              IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)))
+               return 0;
+
+       param = ar->wmi.vdev_param->txbf;
+       value = 0;
+
+       if (WARN_ON(param == WMI_VDEV_PARAM_UNSUPPORTED))
+               return 0;
+
+       /* The following logic is correct. If a remote STA advertises support
+        * for being a beamformer then we should enable us being a beamformee.
+        */
+
+       if (ar->vht_cap_info &
+           (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
+            IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE)) {
+               if (vht_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE)
+                       value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFEE;
+
+               if (vht_cap.cap & IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)
+                       value |= WMI_VDEV_PARAM_TXBF_MU_TX_BFEE;
+       }
+
+       if (ar->vht_cap_info &
+           (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
+            IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)) {
+               if (vht_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE)
+                       value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFER;
+
+               if (vht_cap.cap & IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE)
+                       value |= WMI_VDEV_PARAM_TXBF_MU_TX_BFER;
+       }
+
+       if (value & WMI_VDEV_PARAM_TXBF_MU_TX_BFEE)
+               value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFEE;
+
+       if (value & WMI_VDEV_PARAM_TXBF_MU_TX_BFER)
+               value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFER;
+
+       ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, param, value);
+       if (ret) {
+               ath10k_warn(ar, "failed to submit vdev param txbf 0x%x: %d\n",
+                           value, ret);
+               return ret;
+       }
+
+       return 0;
+}
+
 /* can be called only in mac80211 callbacks due to `key_count` usage */
 static void ath10k_bss_assoc(struct ieee80211_hw *hw,
                             struct ieee80211_vif *vif,
@@ -1790,6 +1878,7 @@ static void ath10k_bss_assoc(struct ieee80211_hw *hw,
        struct ath10k *ar = hw->priv;
        struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
        struct ieee80211_sta_ht_cap ht_cap;
+       struct ieee80211_sta_vht_cap vht_cap;
        struct wmi_peer_assoc_complete_arg peer_arg;
        struct ieee80211_sta *ap_sta;
        int ret;
@@ -1812,6 +1901,7 @@ static void ath10k_bss_assoc(struct ieee80211_hw *hw,
        /* ap_sta must be accessed only within rcu section which must be left
         * before calling ath10k_setup_peer_smps() which might sleep. */
        ht_cap = ap_sta->ht_cap;
+       vht_cap = ap_sta->vht_cap;
 
        ret = ath10k_peer_assoc_prepare(ar, vif, ap_sta, &peer_arg);
        if (ret) {
@@ -1837,6 +1927,13 @@ static void ath10k_bss_assoc(struct ieee80211_hw *hw,
                return;
        }
 
+       ret = ath10k_mac_vif_recalc_txbf(ar, vif, vht_cap);
+       if (ret) {
+               ath10k_warn(ar, "failed to recalc txbf for vdev %i on bss %pM: %d\n",
+                           arvif->vdev_id, bss_conf->bssid, ret);
+               return;
+       }
+
        ath10k_dbg(ar, ATH10K_DBG_MAC,
                   "mac vdev %d up (associated) bssid %pM aid %d\n",
                   arvif->vdev_id, bss_conf->bssid, bss_conf->aid);
@@ -1854,6 +1951,18 @@ static void ath10k_bss_assoc(struct ieee80211_hw *hw,
        }
 
        arvif->is_up = true;
+
+       /* Workaround: Some firmware revisions (tested with qca6174
+        * WLAN.RM.2.0-00073) have buggy powersave state machine and must be
+        * poked with peer param command.
+        */
+       ret = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, arvif->bssid,
+                                       WMI_PEER_DUMMY_VAR, 1);
+       if (ret) {
+               ath10k_warn(ar, "failed to poke peer %pM param for ps workaround on vdev %i: %d\n",
+                           arvif->bssid, arvif->vdev_id, ret);
+               return;
+       }
 }
 
 static void ath10k_bss_disassoc(struct ieee80211_hw *hw,
@@ -1861,6 +1970,7 @@ static void ath10k_bss_disassoc(struct ieee80211_hw *hw,
 {
        struct ath10k *ar = hw->priv;
        struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+       struct ieee80211_sta_vht_cap vht_cap = {};
        int ret;
 
        lockdep_assert_held(&ar->conf_mutex);
@@ -1875,6 +1985,13 @@ static void ath10k_bss_disassoc(struct ieee80211_hw *hw,
 
        arvif->def_wep_key_idx = -1;
 
+       ret = ath10k_mac_vif_recalc_txbf(ar, vif, vht_cap);
+       if (ret) {
+               ath10k_warn(ar, "failed to recalc txbf for vdev %i: %d\n",
+                           arvif->vdev_id, ret);
+               return;
+       }
+
        arvif->is_up = false;
 }
 
@@ -2555,6 +2672,17 @@ static int ath10k_start_scan(struct ath10k *ar,
                return -ETIMEDOUT;
        }
 
+       /* If we failed to start the scan, return error code at
+        * this point.  This is probably due to some issue in the
+        * firmware, but no need to wedge the driver due to that...
+        */
+       spin_lock_bh(&ar->data_lock);
+       if (ar->scan.state == ATH10K_SCAN_IDLE) {
+               spin_unlock_bh(&ar->data_lock);
+               return -EINVAL;
+       }
+       spin_unlock_bh(&ar->data_lock);
+
        /* Add a 200ms margin to account for event/command processing */
        ieee80211_queue_delayed_work(ar->hw, &ar->scan.timeout,
                                     msecs_to_jiffies(arg->max_scan_time+200));
@@ -3324,9 +3452,10 @@ static void ath10k_remove_interface(struct ieee80211_hw *hw,
        list_del(&arvif->list);
 
        if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
-               ret = ath10k_peer_delete(arvif->ar, arvif->vdev_id, vif->addr);
+               ret = ath10k_wmi_peer_delete(arvif->ar, arvif->vdev_id,
+                                            vif->addr);
                if (ret)
-                       ath10k_warn(ar, "failed to remove peer for AP vdev %i: %d\n",
+                       ath10k_warn(ar, "failed to submit AP self-peer removal on vdev %i: %d\n",
                                    arvif->vdev_id, ret);
 
                kfree(arvif->u.ap.noa_data);
@@ -3340,6 +3469,21 @@ static void ath10k_remove_interface(struct ieee80211_hw *hw,
                ath10k_warn(ar, "failed to delete WMI vdev %i: %d\n",
                            arvif->vdev_id, ret);
 
+       /* Some firmware revisions don't notify host about self-peer removal
+        * until after associated vdev is deleted.
+        */
+       if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
+               ret = ath10k_wait_for_peer_deleted(ar, arvif->vdev_id,
+                                                  vif->addr);
+               if (ret)
+                       ath10k_warn(ar, "failed to remove AP self-peer on vdev %i: %d\n",
+                                   arvif->vdev_id, ret);
+
+               spin_lock_bh(&ar->data_lock);
+               ar->num_peers--;
+               spin_unlock_bh(&ar->data_lock);
+       }
+
        ath10k_peer_cleanup(ar, arvif->vdev_id);
 
        mutex_unlock(&ar->conf_mutex);
@@ -3535,7 +3679,9 @@ static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
        }
 
        if (changed & BSS_CHANGED_PS) {
-               ret = ath10k_mac_vif_setup_ps(arvif);
+               arvif->ps = vif->bss_conf.ps;
+
+               ret = ath10k_config_ps(ar);
                if (ret)
                        ath10k_warn(ar, "failed to setup ps on vdev %i: %d\n",
                                    arvif->vdev_id, ret);