From 077efc8c42e8c35870946fc8d2452b70e9a13fba Mon Sep 17 00:00:00 2001 From: Michal Kazior Date: Tue, 21 Oct 2014 10:10:29 +0300 Subject: [PATCH] ath10k: clean up sta auth/assoc code The code can be symmetrical so make it so. This makes it easier to understand and work with. Signed-off-by: Michal Kazior Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/ath10k/mac.c | 121 +++++++++----------------- 1 file changed, 42 insertions(+), 79 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c index d7a2d6f9a0a4..78726a9bb7f1 100644 --- a/drivers/net/wireless/ath/ath10k/mac.c +++ b/drivers/net/wireless/ath/ath10k/mac.c @@ -1492,6 +1492,9 @@ static void ath10k_bss_assoc(struct ieee80211_hw *hw, lockdep_assert_held(&ar->conf_mutex); + ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %i assoc bssid %pM aid %d\n", + arvif->vdev_id, arvif->bssid, arvif->aid); + rcu_read_lock(); ap_sta = ieee80211_find_sta(vif, bss_conf->bssid); @@ -1534,6 +1537,8 @@ static void ath10k_bss_assoc(struct ieee80211_hw *hw, "mac vdev %d up (associated) bssid %pM aid %d\n", arvif->vdev_id, bss_conf->bssid, bss_conf->aid); + WARN_ON(arvif->is_up); + arvif->aid = bss_conf->aid; ether_addr_copy(arvif->bssid, bss_conf->bssid); @@ -1547,9 +1552,6 @@ static void ath10k_bss_assoc(struct ieee80211_hw *hw, arvif->is_up = true; } -/* - * FIXME: flush TIDs - */ static void ath10k_bss_disassoc(struct ieee80211_hw *hw, struct ieee80211_vif *vif) { @@ -1559,33 +1561,15 @@ static void ath10k_bss_disassoc(struct ieee80211_hw *hw, lockdep_assert_held(&ar->conf_mutex); - /* - * For some reason, calling VDEV-DOWN before VDEV-STOP - * makes the FW to send frames via HTT after disassociation. - * No idea why this happens, even though VDEV-DOWN is supposed - * to be analogous to link down, so just stop the VDEV. - */ - ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d stop (disassociated\n", - arvif->vdev_id); - - /* FIXME: check return value */ - ret = ath10k_vdev_stop(arvif); - - /* - * If we don't call VDEV-DOWN after VDEV-STOP FW will remain active and - * report beacons from previously associated network through HTT. - * This in turn would spam mac80211 WARN_ON if we bring down all - * interfaces as it expects there is no rx when no interface is - * running. - */ - ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d down\n", arvif->vdev_id); + ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %i disassoc bssid %pM\n", + arvif->vdev_id, arvif->bssid); - /* FIXME: why don't we print error if wmi call fails? */ ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id); + if (ret) + ath10k_warn(ar, "faield to down vdev %i: %d\n", + arvif->vdev_id, ret); arvif->def_wep_key_idx = 0; - - arvif->is_started = false; arvif->is_up = false; } @@ -3116,54 +3100,8 @@ static void ath10k_bss_info_changed(struct ieee80211_hw *hw, arvif->u.ap.hidden_ssid = info->hidden_ssid; } - /* - * Firmware manages AP self-peer internally so make sure to not create - * it in driver. Otherwise AP self-peer deletion may timeout later. - */ - if (changed & BSS_CHANGED_BSSID && - vif->type != NL80211_IFTYPE_AP) { - if (!is_zero_ether_addr(info->bssid)) { - if (vif->type == NL80211_IFTYPE_STATION) { - ath10k_dbg(ar, ATH10K_DBG_MAC, - "mac vdev %d create peer %pM\n", - arvif->vdev_id, info->bssid); - - ret = ath10k_peer_create(ar, arvif->vdev_id, - info->bssid); - if (ret) - ath10k_warn(ar, "failed to add peer %pM for vdev %d when changing bssid: %i\n", - info->bssid, arvif->vdev_id, - ret); - /* - * this is never erased as we it for crypto key - * clearing; this is FW requirement - */ - ether_addr_copy(arvif->bssid, info->bssid); - - ath10k_dbg(ar, ATH10K_DBG_MAC, - "mac vdev %d start %pM\n", - arvif->vdev_id, info->bssid); - - ret = ath10k_vdev_start(arvif); - if (ret) { - ath10k_warn(ar, "failed to start vdev %i: %d\n", - arvif->vdev_id, ret); - goto exit; - } - - arvif->is_started = true; - } - - /* - * Mac80211 does not keep IBSS bssid when leaving IBSS, - * so driver need to store it. It is needed when leaving - * IBSS in order to remove BSSID peer. - */ - if (vif->type == NL80211_IFTYPE_ADHOC) - memcpy(arvif->bssid, info->bssid, - ETH_ALEN); - } - } + if (changed & BSS_CHANGED_BSSID && !is_zero_ether_addr(info->bssid)) + ether_addr_copy(arvif->bssid, info->bssid); if (changed & BSS_CHANGED_BEACON_ENABLED) ath10k_control_beaconing(arvif, info); @@ -3225,10 +3163,11 @@ static void ath10k_bss_info_changed(struct ieee80211_hw *hw, ath10k_monitor_stop(ar); ath10k_bss_assoc(hw, vif, info); ath10k_monitor_recalc(ar); + } else { + ath10k_bss_disassoc(hw, vif); } } -exit: mutex_unlock(&ar->conf_mutex); } @@ -3537,8 +3476,7 @@ static int ath10k_sta_state(struct ieee80211_hw *hw, mutex_lock(&ar->conf_mutex); if (old_state == IEEE80211_STA_NOTEXIST && - new_state == IEEE80211_STA_NONE && - vif->type != NL80211_IFTYPE_STATION) { + new_state == IEEE80211_STA_NONE) { /* * New station addition. */ @@ -3562,6 +3500,21 @@ static int ath10k_sta_state(struct ieee80211_hw *hw, if (ret) ath10k_warn(ar, "failed to add peer %pM for vdev %d when adding a new sta: %i\n", sta->addr, arvif->vdev_id, ret); + + if (vif->type == NL80211_IFTYPE_STATION) { + WARN_ON(arvif->is_started); + + ret = ath10k_vdev_start(arvif); + if (ret) { + ath10k_warn(ar, "failed to start vdev %i: %d\n", + arvif->vdev_id, ret); + WARN_ON(ath10k_peer_delete(ar, arvif->vdev_id, + sta->addr)); + goto exit; + } + + arvif->is_started = true; + } } else if ((old_state == IEEE80211_STA_NONE && new_state == IEEE80211_STA_NOTEXIST)) { /* @@ -3570,13 +3523,23 @@ static int ath10k_sta_state(struct ieee80211_hw *hw, ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d peer delete %pM (sta gone)\n", arvif->vdev_id, sta->addr); + + if (vif->type == NL80211_IFTYPE_STATION) { + WARN_ON(!arvif->is_started); + + ret = ath10k_vdev_stop(arvif); + if (ret) + ath10k_warn(ar, "failed to stop vdev %i: %d\n", + arvif->vdev_id, ret); + + arvif->is_started = false; + } + ret = ath10k_peer_delete(ar, arvif->vdev_id, sta->addr); if (ret) ath10k_warn(ar, "failed to delete peer %pM for vdev %d: %i\n", sta->addr, arvif->vdev_id, ret); - if (vif->type == NL80211_IFTYPE_STATION) - ath10k_bss_disassoc(hw, vif); } else if (old_state == IEEE80211_STA_AUTH && new_state == IEEE80211_STA_ASSOC && (vif->type == NL80211_IFTYPE_AP || -- 2.39.5