From 3e238a1167cc5693a0d97b946100d74d75b72680 Mon Sep 17 00:00:00 2001 From: Avinash Patil Date: Fri, 3 Aug 2012 18:06:11 -0700 Subject: [PATCH] mwifiex: cleanup TX/RX BA tables for uAP Cleanup TX/RX BA tables when AP receives deauthentication from associated station. During BSS_IDLE event, all wmm queues, BA streams created for AP interface are deleted. Signed-off-by: Avinash Patil Signed-off-by: Kiran Divekar Signed-off-by: Bing Zhao Signed-off-by: John W. Linville --- drivers/net/wireless/mwifiex/11n.c | 26 ++++++++++++++++++++ drivers/net/wireless/mwifiex/11n.h | 1 + drivers/net/wireless/mwifiex/11n_rxreorder.c | 25 +++++++++++++++++++ drivers/net/wireless/mwifiex/11n_rxreorder.h | 1 + drivers/net/wireless/mwifiex/uap_event.c | 5 ++++ 5 files changed, 58 insertions(+) diff --git a/drivers/net/wireless/mwifiex/11n.c b/drivers/net/wireless/mwifiex/11n.c index e535c937628b..d2732736f864 100644 --- a/drivers/net/wireless/mwifiex/11n.c +++ b/drivers/net/wireless/mwifiex/11n.c @@ -726,3 +726,29 @@ int mwifiex_get_tx_ba_stream_tbl(struct mwifiex_private *priv, return count; } + +/* + * This function retrieves the entry for specific tx BA stream table by RA and + * deletes it. + */ +void mwifiex_del_tx_ba_stream_tbl_by_ra(struct mwifiex_private *priv, u8 *ra) +{ + struct mwifiex_tx_ba_stream_tbl *tbl, *tmp; + unsigned long flags; + + if (!ra) + return; + + spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags); + list_for_each_entry_safe(tbl, tmp, &priv->tx_ba_stream_tbl_ptr, list) { + if (!memcmp(tbl->ra, ra, ETH_ALEN)) { + spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, + flags); + mwifiex_11n_delete_tx_ba_stream_tbl_entry(priv, tbl); + spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags); + } + } + spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags); + + return; +} diff --git a/drivers/net/wireless/mwifiex/11n.h b/drivers/net/wireless/mwifiex/11n.h index 6d2edb4c2ad2..67c087cf9dc7 100644 --- a/drivers/net/wireless/mwifiex/11n.h +++ b/drivers/net/wireless/mwifiex/11n.h @@ -69,6 +69,7 @@ int mwifiex_cmd_recfg_tx_buf(struct mwifiex_private *priv, int mwifiex_cmd_amsdu_aggr_ctrl(struct host_cmd_ds_command *cmd, int cmd_action, struct mwifiex_ds_11n_amsdu_aggr_ctrl *aa_ctrl); +void mwifiex_del_tx_ba_stream_tbl_by_ra(struct mwifiex_private *priv, u8 *ra); /* * This function checks whether AMPDU is allowed or not for a particular TID. diff --git a/drivers/net/wireless/mwifiex/11n_rxreorder.c b/drivers/net/wireless/mwifiex/11n_rxreorder.c index e43d27dc06bf..24e2582b467c 100644 --- a/drivers/net/wireless/mwifiex/11n_rxreorder.c +++ b/drivers/net/wireless/mwifiex/11n_rxreorder.c @@ -176,6 +176,31 @@ mwifiex_11n_get_rx_reorder_tbl(struct mwifiex_private *priv, int tid, u8 *ta) return NULL; } +/* This function retrieves the pointer to an entry in Rx reordering + * table which matches the given TA and deletes it. + */ +void mwifiex_11n_del_rx_reorder_tbl_by_ta(struct mwifiex_private *priv, u8 *ta) +{ + struct mwifiex_rx_reorder_tbl *tbl, *tmp; + unsigned long flags; + + if (!ta) + return; + + spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); + list_for_each_entry_safe(tbl, tmp, &priv->rx_reorder_tbl_ptr, list) { + if (!memcmp(tbl->ta, ta, ETH_ALEN)) { + spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, + flags); + mwifiex_del_rx_reorder_entry(priv, tbl); + spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); + } + } + spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags); + + return; +} + /* * This function finds the last sequence number used in the packets * buffered in Rx reordering table. diff --git a/drivers/net/wireless/mwifiex/11n_rxreorder.h b/drivers/net/wireless/mwifiex/11n_rxreorder.h index 13ecb6101e23..72848591691a 100644 --- a/drivers/net/wireless/mwifiex/11n_rxreorder.h +++ b/drivers/net/wireless/mwifiex/11n_rxreorder.h @@ -72,5 +72,6 @@ struct mwifiex_rx_reorder_tbl *mwifiex_11n_get_rxreorder_tbl(struct u8 *ta); struct mwifiex_rx_reorder_tbl * mwifiex_11n_get_rx_reorder_tbl(struct mwifiex_private *priv, int tid, u8 *ta); +void mwifiex_11n_del_rx_reorder_tbl_by_ta(struct mwifiex_private *priv, u8 *ta); #endif /* _MWIFIEX_11N_RXREORDER_H_ */ diff --git a/drivers/net/wireless/mwifiex/uap_event.c b/drivers/net/wireless/mwifiex/uap_event.c index a10bd95aec12..14d4f04201b9 100644 --- a/drivers/net/wireless/mwifiex/uap_event.c +++ b/drivers/net/wireless/mwifiex/uap_event.c @@ -226,10 +226,15 @@ int mwifiex_process_uap_event(struct mwifiex_private *priv) MWIFIEX_UAP_EVENT_EXTRA_HEADER; cfg80211_del_sta(priv->netdev, deauth_mac, GFP_KERNEL); + if (priv->ap_11n_enabled) { + mwifiex_11n_del_rx_reorder_tbl_by_ta(priv, deauth_mac); + mwifiex_del_tx_ba_stream_tbl_by_ra(priv, deauth_mac); + } mwifiex_del_sta_entry(priv, deauth_mac); break; case EVENT_UAP_BSS_IDLE: priv->media_connected = false; + mwifiex_clean_txrx(priv); mwifiex_del_all_sta_list(priv); break; case EVENT_UAP_BSS_ACTIVE: