Return-path: Received: from static.88-198-24-112.clients.your-server.de ([88.198.24.112]:59390 "EHLO nbd.name" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1756341AbaKSTIQ (ORCPT ); Wed, 19 Nov 2014 14:08:16 -0500 From: Felix Fietkau To: linux-wireless@vger.kernel.org Cc: johannes@sipsolutions.net Subject: [PATCH v2 7/7] mac80211: add ieee80211_tx_status_noskb Date: Wed, 19 Nov 2014 20:08:13 +0100 Message-Id: <1416424093-19439-7-git-send-email-nbd@openwrt.org> (sfid-20141119_200819_841374_5321BDC6) In-Reply-To: <1416424093-19439-1-git-send-email-nbd@openwrt.org> References: <1416424093-19439-1-git-send-email-nbd@openwrt.org> Sender: linux-wireless-owner@vger.kernel.org List-ID: This can be used by drivers that cannot reliably map tx status information onto specific skbs. Signed-off-by: Felix Fietkau --- include/net/mac80211.h | 20 +++++++++++++++++++ net/mac80211/rate.h | 18 +++++++++++++++++ net/mac80211/status.c | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 92 insertions(+) diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 32a779c..6150e72 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -3517,6 +3517,26 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb); /** + * ieee80211_tx_status_noskb - transmit status callback without skb + * + * This function can be used as a replacement for ieee80211_tx_status + * in drivers that cannot reliably map tx status information back to + * specific skbs. + * + * Calls to this function for a single hardware must be synchronized + * against each other. Calls to this function, ieee80211_tx_status_ni() + * and ieee80211_tx_status_irqsafe() may not be mixed for a single hardware. + * + * @hw: the hardware the frame was transmitted by + * @sta: the receiver station to which this packet is sent + * (NULL for multicast packets) + * @info: tx status information + */ +void ieee80211_tx_status_noskb(struct ieee80211_hw *hw, + struct ieee80211_sta *sta, + struct ieee80211_tx_info *info); + +/** * ieee80211_tx_status_ni - transmit status callback (in process context) * * Like ieee80211_tx_status() but can be called in process context. diff --git a/net/mac80211/rate.h b/net/mac80211/rate.h index dd25964..38652f0 100644 --- a/net/mac80211/rate.h +++ b/net/mac80211/rate.h @@ -48,6 +48,24 @@ static inline void rate_control_tx_status(struct ieee80211_local *local, ref->ops->tx_status_noskb(ref->priv, sband, ista, priv_sta, info); } +static inline void +rate_control_tx_status_noskb(struct ieee80211_local *local, + struct ieee80211_supported_band *sband, + struct sta_info *sta, + struct ieee80211_tx_info *info) +{ + struct rate_control_ref *ref = local->rate_ctrl; + struct ieee80211_sta *ista = &sta->sta; + void *priv_sta = sta->rate_ctrl_priv; + + if (!ref || !test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) + return; + + if (WARN_ON_ONCE(!ref->ops->tx_status_noskb)) + return; + + ref->ops->tx_status_noskb(ref->priv, sband, ista, priv_sta, info); +} static inline void rate_control_rate_init(struct sta_info *sta) { diff --git a/net/mac80211/status.c b/net/mac80211/status.c index 249ca3a..84d6f6c 100644 --- a/net/mac80211/status.c +++ b/net/mac80211/status.c @@ -605,6 +605,60 @@ static int ieee80211_tx_get_rates(struct ieee80211_hw *hw, return rates_idx; } +void ieee80211_tx_status_noskb(struct ieee80211_hw *hw, + struct ieee80211_sta *pubsta, + struct ieee80211_tx_info *info) +{ + struct ieee80211_local *local = hw_to_local(hw); + struct ieee80211_supported_band *sband; + int retry_count; + int rates_idx; + bool acked; + + rates_idx = ieee80211_tx_get_rates(hw, info, &retry_count); + + sband = hw->wiphy->bands[info->band]; + + acked = !!(info->flags & IEEE80211_TX_STAT_ACK); + if (pubsta) { + struct sta_info *sta; + + sta = container_of(pubsta, struct sta_info, sta); + + if (!acked) + sta->tx_retry_failed++; + sta->tx_retry_count += retry_count; + + if (acked) { + sta->last_rx = jiffies; + + if (sta->lost_packets) + sta->lost_packets = 0; + + /* Track when last TDLS packet was ACKed */ + if (test_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH)) + sta->last_tdls_pkt_time = jiffies; + } else { + ieee80211_lost_packet(sta, info); + } + + rate_control_tx_status_noskb(local, sband, sta, info); + } + + if (acked) { + local->dot11TransmittedFrameCount++; + if (!pubsta) + local->dot11MulticastTransmittedFrameCount++; + if (retry_count > 0) + local->dot11RetryCount++; + if (retry_count > 1) + local->dot11MultipleRetryCount++; + } else { + local->dot11FailedCount++; + } +} +EXPORT_SYMBOL(ieee80211_tx_status_noskb); + void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) { struct sk_buff *skb2; -- 2.1.2