From: Avinash Patil <patila@xxxxxxxxxxx>
This patch adds support for reception and decoding of AMSDU
aggregation frames for AP interface.
Patch also adds support for handling AMSDU aggregation event.
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_rxreorder.c | 26 +++++++++---
drivers/net/wireless/mwifiex/11n_rxreorder.h | 2 +
drivers/net/wireless/mwifiex/uap_event.c | 13 ++++++
drivers/net/wireless/mwifiex/uap_txrx.c | 56 ++++++++++++++++++++++++-
4 files changed, 88 insertions(+), 9 deletions(-)
diff --git a/drivers/net/wireless/mwifiex/11n_rxreorder.c b/drivers/net/wireless/mwifiex/11n_rxreorder.c
index 591ccd3..20367fe 100644
--- a/drivers/net/wireless/mwifiex/11n_rxreorder.c
+++ b/drivers/net/wireless/mwifiex/11n_rxreorder.c
@@ -54,8 +54,13 @@ mwifiex_11n_dispatch_pkt(struct mwifiex_private *priv,
tbl->rx_reorder_ptr[i] = NULL;
}
spin_unlock_irqrestore(&priv->rx_pkt_lock, flags);
- if (rx_tmp_ptr)
- mwifiex_process_rx_packet(priv->adapter, rx_tmp_ptr);
+ if (rx_tmp_ptr) {
+ if (priv->bss_role == MWIFIEX_BSS_ROLE_UAP)
+ mwifiex_handle_uap_rx_forward(priv, rx_tmp_ptr);
+ else
+ mwifiex_process_rx_packet(priv->adapter,
+ rx_tmp_ptr);
+ }
}
spin_lock_irqsave(&priv->rx_pkt_lock, flags);
@@ -97,7 +102,11 @@ mwifiex_11n_scan_and_dispatch(struct mwifiex_private *priv,
rx_tmp_ptr = tbl->rx_reorder_ptr[i];
tbl->rx_reorder_ptr[i] = NULL;
spin_unlock_irqrestore(&priv->rx_pkt_lock, flags);
- mwifiex_process_rx_packet(priv->adapter, rx_tmp_ptr);
+
+ if (priv->bss_role == MWIFIEX_BSS_ROLE_UAP)
+ mwifiex_handle_uap_rx_forward(priv, rx_tmp_ptr);
+ else
+ mwifiex_process_rx_packet(priv->adapter, rx_tmp_ptr);
}
spin_lock_irqsave(&priv->rx_pkt_lock, flags);
@@ -148,7 +157,7 @@ mwifiex_del_rx_reorder_entry(struct mwifiex_private *priv,
* This function returns the pointer to an entry in Rx reordering
* table which matches the given TA/TID pair.
*/
-static struct mwifiex_rx_reorder_tbl *
+struct mwifiex_rx_reorder_tbl *
mwifiex_11n_get_rx_reorder_tbl(struct mwifiex_private *priv, int tid, u8 *ta)
{
struct mwifiex_rx_reorder_tbl *tbl;
@@ -396,8 +405,13 @@ int mwifiex_11n_rx_reorder_pkt(struct mwifiex_private *priv,
tbl = mwifiex_11n_get_rx_reorder_tbl(priv, tid, ta);
if (!tbl) {
- if (pkt_type != PKT_TYPE_BAR)
- mwifiex_process_rx_packet(priv->adapter, payload);
+ if (pkt_type != PKT_TYPE_BAR) {
+ if (priv->bss_role == MWIFIEX_BSS_ROLE_UAP)
+ mwifiex_handle_uap_rx_forward(priv, payload);
+ else
+ mwifiex_process_rx_packet(priv->adapter,
+ payload);
+ }
return 0;
}
start_win = tbl->start_win;
diff --git a/drivers/net/wireless/mwifiex/11n_rxreorder.h b/drivers/net/wireless/mwifiex/11n_rxreorder.h
index 6c9815a..1cd51d8 100644
--- a/drivers/net/wireless/mwifiex/11n_rxreorder.h
+++ b/drivers/net/wireless/mwifiex/11n_rxreorder.h
@@ -68,5 +68,7 @@ struct mwifiex_rx_reorder_tbl *mwifiex_11n_get_rxreorder_tbl(struct
mwifiex_private
*priv, int tid,
u8 *ta);
+struct mwifiex_rx_reorder_tbl *
+mwifiex_11n_get_rx_reorder_tbl(struct mwifiex_private *priv, int tid, 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 37cc642..6270c80 100644
--- a/drivers/net/wireless/mwifiex/uap_event.c
+++ b/drivers/net/wireless/mwifiex/uap_event.c
@@ -242,6 +242,19 @@ int mwifiex_process_uap_event(struct mwifiex_private *priv)
/* For future development */
dev_dbg(adapter->dev, "AP EVENT: event id: %#x\n", eventcause);
break;
+ case EVENT_AMSDU_AGGR_CTRL:
+ dev_dbg(adapter->dev, "event: AMSDU_AGGR_CTRL %d\n",
+ *(u16 *)adapter->event_body);
+
+ if (priv->media_connected) {
+ adapter->tx_buf_size =
+ min(adapter->curr_tx_buf_size,
+ le16_to_cpu(*(__le16 *)adapter->event_body));
+
+ dev_dbg(adapter->dev, "event: tx_buf_size %d\n",
+ adapter->tx_buf_size);
+ }
+ break;
default:
dev_dbg(adapter->dev, "event: unknown event id: %#x\n",
eventcause);
diff --git a/drivers/net/wireless/mwifiex/uap_txrx.c b/drivers/net/wireless/mwifiex/uap_txrx.c
index f55c5ac..6d814f0 100644
--- a/drivers/net/wireless/mwifiex/uap_txrx.c
+++ b/drivers/net/wireless/mwifiex/uap_txrx.c
@@ -21,6 +21,8 @@
#include "ioctl.h"
#include "main.h"
#include "wmm.h"
+#include "11n_aggr.h"
+#include "11n_rxreorder.h"
static void mwifiex_uap_queue_bridged_pkt(struct mwifiex_private *priv,
struct sk_buff *skb)
@@ -165,6 +167,9 @@ int mwifiex_process_uap_rx_packet(struct mwifiex_adapter *adapter,
struct mwifiex_rxinfo *rx_info = MWIFIEX_SKB_RXCB(skb);
struct rx_packet_hdr *rx_pkt_hdr;
u16 rx_pkt_type;
+ u8 ta[ETH_ALEN], pkt_type;
+ struct mwifiex_sta_node *node;
+
struct mwifiex_private *priv =
mwifiex_get_priv_by_id(adapter, rx_info->bss_num,
rx_info->bss_type);
@@ -191,15 +196,60 @@ int mwifiex_process_uap_rx_packet(struct mwifiex_adapter *adapter,
return 0;
}
- ret = mwifiex_handle_uap_rx_forward(priv, skb);
- if (ret) {
- priv->stats.rx_dropped++;
+ if (le16_to_cpu(uap_rx_pd->rx_pkt_type) == PKT_TYPE_AMSDU) {
+ struct sk_buff_head list;
+ struct sk_buff *rx_skb;
+
+ __skb_queue_head_init(&list);
+ skb_pull(skb, le16_to_cpu(uap_rx_pd->rx_pkt_offset));
+ skb_trim(skb, le16_to_cpu(uap_rx_pd->rx_pkt_length));
+
+ ieee80211_amsdu_to_8023s(skb, &list, priv->curr_addr,
+ priv->wdev->iftype, 0, false);
+
+ while (!skb_queue_empty(&list)) {
+ rx_skb = __skb_dequeue(&list);
+ ret = mwifiex_recv_packet(adapter, rx_skb);
+ if (ret)
+ dev_err(adapter->dev,
+ "AP:Rx A-MSDU failed");
+ }
+
+ return 0;
+ }
+
+ memcpy(ta, rx_pkt_hdr->eth803_hdr.h_source, ETH_ALEN);
+
+ if (rx_pkt_type != PKT_TYPE_BAR && uap_rx_pd->priority < MAX_NUM_TID) {
+ node = mwifiex_get_sta_entry(priv, ta);
+ if (node)
+ node->rx_seq[uap_rx_pd->priority] =
+ le16_to_cpu(uap_rx_pd->seq_num);
+ }
+
+ if (!priv->ap_11n_enabled ||
+ (!mwifiex_11n_get_rx_reorder_tbl(priv, uap_rx_pd->priority, ta) &&
+ (le16_to_cpu(uap_rx_pd->rx_pkt_type) != PKT_TYPE_AMSDU))) {
+ ret = mwifiex_handle_uap_rx_forward(priv, skb);
+ return ret;
+ }
+
+ /* Reorder and send to kernel */
+ pkt_type = (u8)le16_to_cpu(uap_rx_pd->rx_pkt_type);
+ ret = mwifiex_11n_rx_reorder_pkt(priv, le16_to_cpu(uap_rx_pd->seq_num),
+ uap_rx_pd->priority, ta, pkt_type,
+ skb);
+
+ if (ret || (rx_pkt_type == PKT_TYPE_BAR)) {
if (adapter->if_ops.data_complete)
adapter->if_ops.data_complete(adapter, skb);
else
dev_kfree_skb_any(skb);
}
+ if (ret)
+ priv->stats.rx_dropped++;
+
return ret;
}
--
1.7.0.2
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