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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 <patila@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Avinash Patil 2012-08-03 18:06:11 -07:00 committed by John W. Linville
parent 5a009adf32
commit 3e238a1167
5 changed files with 58 additions and 0 deletions
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26
drivers/net/wireless/mwifiex/11n.c
View File

@ -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;
}

1
drivers/net/wireless/mwifiex/11n.h
View File

@ -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.

25
drivers/net/wireless/mwifiex/11n_rxreorder.c
View File

@ -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.

1
drivers/net/wireless/mwifiex/11n_rxreorder.h
View File

@ -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_ */

5
drivers/net/wireless/mwifiex/uap_event.c
View File

@ -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: