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mwifiex: process rxba_sync event

Browse source 
Firmware may filter and drop packets under certain condition, for
example, ARP SA=DA packet. this event will be used to synchronize
the Rx Block Acknowledgment (BA) window bitmap and to fill any holes
in driver side.

Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Xinming Hu 2016-07-25 21:21:08 +05:30 committed by Kalle Valo
parent c2a8f0ff9c
commit 99ffe72cda
5 changed files with 103 additions and 3 deletions
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78
drivers/net/wireless/marvell/mwifiex/11n_rxreorder.c
View file

@ -78,8 +78,15 @@ static int mwifiex_11n_dispatch_amsdu_pkt(struct mwifiex_private *priv,
*/
static int mwifiex_11n_dispatch_pkt(struct mwifiex_private *priv, void *payload)
{
int ret = mwifiex_11n_dispatch_amsdu_pkt(priv, payload);
int ret;
if (!payload) {
mwifiex_dbg(priv->adapter, INFO, "info: fw drop data\n");
return 0;
}
ret = mwifiex_11n_dispatch_amsdu_pkt(priv, payload);
if (!ret)
return 0;
@ -921,3 +928,72 @@ void mwifiex_coex_ampdu_rxwinsize(struct mwifiex_adapter *adapter)
else
mwifiex_update_ampdu_rxwinsize(adapter, false);
}
/* This function handles rxba_sync event
*/
void mwifiex_11n_rxba_sync_event(struct mwifiex_private *priv,
u8 *event_buf, u16 len)
{
struct mwifiex_ie_types_rxba_sync *tlv_rxba = (void *)event_buf;
u16 tlv_type, tlv_len;
struct mwifiex_rx_reorder_tbl *rx_reor_tbl_ptr;
u8 i, j;
u16 seq_num, tlv_seq_num, tlv_bitmap_len;
int tlv_buf_left = len;
int ret;
u8 *tmp;
mwifiex_dbg_dump(priv->adapter, EVT_D, "RXBA_SYNC event:",
event_buf, len);
while (tlv_buf_left >= sizeof(*tlv_rxba)) {
tlv_type = le16_to_cpu(tlv_rxba->header.type);
tlv_len = le16_to_cpu(tlv_rxba->header.len);
if (tlv_type != TLV_TYPE_RXBA_SYNC) {
mwifiex_dbg(priv->adapter, ERROR,
"Wrong TLV id=0x%x\n", tlv_type);
return;
}
tlv_seq_num = le16_to_cpu(tlv_rxba->seq_num);
tlv_bitmap_len = le16_to_cpu(tlv_rxba->bitmap_len);
mwifiex_dbg(priv->adapter, INFO,
"%pM tid=%d seq_num=%d bitmap_len=%d\n",
tlv_rxba->mac, tlv_rxba->tid, tlv_seq_num,
tlv_bitmap_len);
rx_reor_tbl_ptr =
mwifiex_11n_get_rx_reorder_tbl(priv, tlv_rxba->tid,
tlv_rxba->mac);
if (!rx_reor_tbl_ptr) {
mwifiex_dbg(priv->adapter, ERROR,
"Can not find rx_reorder_tbl!");
return;
}
for (i = 0; i < tlv_bitmap_len; i++) {
for (j = 0 ; j < 8; j++) {
if (tlv_rxba->bitmap[i] & (1 << j)) {
seq_num = (MAX_TID_VALUE - 1) &
(tlv_seq_num + i * 8 + j);
mwifiex_dbg(priv->adapter, ERROR,
"drop packet,seq=%d\n",
seq_num);
ret = mwifiex_11n_rx_reorder_pkt
(priv, seq_num, tlv_rxba->tid,
tlv_rxba->mac, 0, NULL);
if (ret)
mwifiex_dbg(priv->adapter,
ERROR,
"Fail to drop packet");
}
}
}
tlv_buf_left -= (sizeof(*tlv_rxba) + tlv_len);
tmp = (u8 *)tlv_rxba + tlv_len + sizeof(*tlv_rxba);
tlv_rxba = (struct mwifiex_ie_types_rxba_sync *)tmp;
}
}

3
drivers/net/wireless/marvell/mwifiex/11n_rxreorder.h
View file

@ -81,5 +81,6 @@ 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);
void mwifiex_update_rxreor_flags(struct mwifiex_adapter *adapter, u8 flags);
void mwifiex_11n_rxba_sync_event(struct mwifiex_private *priv,
u8 *event_buf, u16 len);
#endif /* _MWIFIEX_11N_RXREORDER_H_ */

12
drivers/net/wireless/marvell/mwifiex/fw.h
View file

@ -176,6 +176,7 @@ enum MWIFIEX_802_11_PRIVACY_FILTER {
#define TLV_TYPE_PWK_CIPHER (PROPRIETARY_TLV_BASE_ID + 145)
#define TLV_TYPE_GWK_CIPHER (PROPRIETARY_TLV_BASE_ID + 146)
#define TLV_TYPE_TX_PAUSE (PROPRIETARY_TLV_BASE_ID + 148)
#define TLV_TYPE_RXBA_SYNC (PROPRIETARY_TLV_BASE_ID + 153)
#define TLV_TYPE_COALESCE_RULE (PROPRIETARY_TLV_BASE_ID + 154)
#define TLV_TYPE_KEY_PARAM_V2 (PROPRIETARY_TLV_BASE_ID + 156)
#define TLV_TYPE_REPEAT_COUNT (PROPRIETARY_TLV_BASE_ID + 176)
@ -532,6 +533,7 @@ enum P2P_MODES {
#define EVENT_CHANNEL_REPORT_RDY 0x00000054
#define EVENT_TX_DATA_PAUSE 0x00000055
#define EVENT_EXT_SCAN_REPORT 0x00000058
#define EVENT_RXBA_SYNC 0x00000059
#define EVENT_BG_SCAN_STOPPED 0x00000065
#define EVENT_REMAIN_ON_CHAN_EXPIRED 0x0000005f
#define EVENT_MULTI_CHAN_INFO 0x0000006a
@ -735,6 +737,16 @@ struct mwifiex_ie_types_chan_list_param_set {
struct mwifiex_chan_scan_param_set chan_scan_param[1];
} __packed;
struct mwifiex_ie_types_rxba_sync {
struct mwifiex_ie_types_header header;
u8 mac[ETH_ALEN];
u8 tid;
u8 reserved;
__le16 seq_num;
__le16 bitmap_len;
u8 bitmap[1];
} __packed;
struct chan_band_param_set {
u8 radio_type;
u8 chan_number;

6
drivers/net/wireless/marvell/mwifiex/sta_event.c
View file

@ -873,6 +873,12 @@ int mwifiex_process_sta_event(struct mwifiex_private *priv)
mwifiex_bt_coex_wlan_param_update_event(priv,
adapter->event_skb);
break;
case EVENT_RXBA_SYNC:
dev_dbg(adapter->dev, "EVENT: RXBA_SYNC\n");
mwifiex_11n_rxba_sync_event(priv, adapter->event_body,
adapter->event_skb->len -
sizeof(eventcause));
break;
default:
mwifiex_dbg(adapter, ERROR, "event: unknown event id: %#x\n",
eventcause);

7
drivers/net/wireless/marvell/mwifiex/uap_event.c
View file

@ -306,7 +306,12 @@ int mwifiex_process_uap_event(struct mwifiex_private *priv)
mwifiex_dbg(adapter, EVENT, "event: multi-chan info\n");
mwifiex_process_multi_chan_event(priv, adapter->event_skb);
break;
case EVENT_RXBA_SYNC:
dev_dbg(adapter->dev, "EVENT: RXBA_SYNC\n");
mwifiex_11n_rxba_sync_event(priv, adapter->event_body,
adapter->event_skb->len -
sizeof(eventcause));
break;
default:
mwifiex_dbg(adapter, EVENT,
"event: unknown event id: %#x\n", eventcause);