From: Avinash Patil <patila@xxxxxxxxxxx>
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@xxxxxxxxxxx>
Signed-off-by: Kiran Divekar <dkiran@xxxxxxxxxxx>
Signed-off-by: Bing Zhao <bzhao@xxxxxxxxxxx>
---
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(+), 0 deletions(-)
diff --git a/drivers/net/wireless/mwifiex/11n.c b/drivers/net/wireless/mwifiex/11n.c
index e535c93..d273273 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 6d2edb4..67c087c 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 e43d27d..24e2582 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 13ecb61..7284859 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 a10bd95..14d4f04 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:
--
1.7.0.2
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
