From: Sujith Manoharan <[email protected]> Currently, ath9k uses a global counter for all frames that need to be assigned a sequence number. QoS-data frames are handled properly since they have a per-tid counter. But, beacons and other management frames use the same counter even if multiple interfaces or contexts are present.
Fix this issue by making the counter per-interface and using it when mac80211 sets IEEE80211_TX_CTL_ASSIGN_SEQ. Signed-off-by: Sujith Manoharan <[email protected]> --- drivers/net/wireless/ath/ath9k/ath9k.h | 4 +++- drivers/net/wireless/ath/ath9k/beacon.c | 12 ++---------- drivers/net/wireless/ath/ath9k/xmit.c | 34 ++++++++++++++++++++++----------- 3 files changed, 28 insertions(+), 22 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index bfa0b15..01a7db0 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -294,7 +294,6 @@ struct ath_tx_control { * (axq_qnum). */ struct ath_tx { - u16 seq_no; u32 txqsetup; spinlock_t txbuflock; struct list_head txbuf; @@ -563,6 +562,7 @@ int ath_tx_init(struct ath_softc *sc, int nbufs); int ath_txq_update(struct ath_softc *sc, int qnum, struct ath9k_tx_queue_info *q); void ath_update_max_aggr_framelen(struct ath_softc *sc, int queue, int txop); +void ath_assign_seq(struct ath_common *common, struct sk_buff *skb); int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb, struct ath_tx_control *txctl); void ath_tx_cabq(struct ieee80211_hw *hw, struct ieee80211_vif *vif, @@ -592,6 +592,8 @@ void ath9k_release_buffered_frames(struct ieee80211_hw *hw, struct ath_vif { struct list_head list; + u16 seq_no; + /* BSS info */ u8 bssid[ETH_ALEN]; u16 aid; diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c index a6af855..ecb783b 100644 --- a/drivers/net/wireless/ath/ath9k/beacon.c +++ b/drivers/net/wireless/ath/ath9k/beacon.c @@ -144,16 +144,8 @@ static struct ath_buf *ath9k_beacon_generate(struct ieee80211_hw *hw, mgmt_hdr->u.beacon.timestamp = avp->tsf_adjust; info = IEEE80211_SKB_CB(skb); - if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { - /* - * TODO: make sure the seq# gets assigned properly (vs. other - * TX frames) - */ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; - sc->tx.seq_no += 0x10; - hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); - hdr->seq_ctrl |= cpu_to_le16(sc->tx.seq_no); - } + + ath_assign_seq(common, skb); if (vif->p2p) ath9k_beacon_add_noa(sc, avp, skb); diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index 151ae49..493a183 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -2139,6 +2139,28 @@ static struct ath_buf *ath_tx_setup_buffer(struct ath_softc *sc, return bf; } +void ath_assign_seq(struct ath_common *common, struct sk_buff *skb) +{ + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct ieee80211_vif *vif = info->control.vif; + struct ath_vif *avp; + + if (!(info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ)) + return; + + if (!vif) + return; + + avp = (struct ath_vif *)vif->drv_priv; + + if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT) + avp->seq_no += 0x10; + + hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); + hdr->seq_ctrl |= cpu_to_le16(avp->seq_no); +} + static int ath_tx_prepare(struct ieee80211_hw *hw, struct sk_buff *skb, struct ath_tx_control *txctl) { @@ -2162,17 +2184,7 @@ static int ath_tx_prepare(struct ieee80211_hw *hw, struct sk_buff *skb, if (info->control.hw_key) frmlen += info->control.hw_key->icv_len; - /* - * As a temporary workaround, assign seq# here; this will likely need - * to be cleaned up to work better with Beacon transmission and virtual - * BSSes. - */ - if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { - if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT) - sc->tx.seq_no += 0x10; - hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); - hdr->seq_ctrl |= cpu_to_le16(sc->tx.seq_no); - } + ath_assign_seq(ath9k_hw_common(sc->sc_ah), skb); if ((vif && vif->type != NL80211_IFTYPE_AP && vif->type != NL80211_IFTYPE_AP_VLAN) || -- 2.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
