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rtlwifi: btcoex: 21a 1ant: treat ARP as special packet 

We need to pay attention to ARP packets to correctly establish
connection, and reset the ARP counter when disconnected.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Yan-Hsuan Chuang 2017-05-16 08:19:48 -05:00 committed by Kalle Valo
parent ee406cec87
commit de202ba39f
2 changed files with 47 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

49
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c
View File

@ -2592,7 +2592,7 @@ void ex_btc8821a1ant_scan_notify(struct btc_coexist *btcoexist, u8 type)
void ex_btc8821a1ant_connect_notify(struct btc_coexist *btcoexist, u8 type)
{
struct rtl_priv *rtlpriv = btcoexist->adapter;
bool wifi_connected = false, bt_hs_on = false;
bool wifi_connected = false, bt_hs_on = false;
u32 wifi_link_status = 0;
u32 num_of_wifi_link = 0;
bool bt_ctrl_agg_buf_size = false;
@ -2610,6 +2610,18 @@ void ex_btc8821a1ant_connect_notify(struct btc_coexist *btcoexist, u8 type)
return;
}
if (type == BTC_ASSOCIATE_START) {
coex_sta->wifi_is_high_pri_task = true;
RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
"[BTCoex], CONNECT START notify\n");
coex_dm->arp_cnt = 0;
} else {
coex_sta->wifi_is_high_pri_task = false;
RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
"[BTCoex], CONNECT FINISH notify\n");
coex_dm->arp_cnt = 0;
}
btcoexist->btc_get(btcoexist, BTC_GET_U4_WIFI_LINK_STATUS,
&wifi_link_status);
num_of_wifi_link = wifi_link_status >> 16;
@ -2675,6 +2687,7 @@ void ex_btc8821a1ant_media_status_notify(struct btc_coexist *btcoexist,
} else {
RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
"[BTCoex], MEDIA disconnect notify\n");
coex_dm->arp_cnt = 0;
}
/* only 2.4G we need to inform bt the chnl mask */
@ -2728,6 +2741,24 @@ void ex_btc8821a1ant_special_packet_notify(struct btc_coexist *btcoexist,
return;
}
if (type == BTC_PACKET_DHCP || type == BTC_PACKET_EAPOL ||
type == BTC_PACKET_ARP) {
coex_sta->wifi_is_high_pri_task = true;
if (type == BTC_PACKET_ARP) {
RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
"[BTCoex], specific Packet ARP notify\n");
} else {
RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
"[BTCoex], specific Packet DHCP or EAPOL notify\n");
}
} else {
coex_sta->wifi_is_high_pri_task = false;
RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
"[BTCoex], specific Packet [Type = %d] notify\n",
type);
}
coex_sta->special_pkt_period_cnt = 0;
btcoexist->btc_get(btcoexist, BTC_GET_U4_WIFI_LINK_STATUS,
@ -2750,8 +2781,20 @@ void ex_btc8821a1ant_special_packet_notify(struct btc_coexist *btcoexist,
return;
}
if (BTC_PACKET_DHCP == type ||
BTC_PACKET_EAPOL == type) {
if (type == BTC_PACKET_DHCP || type == BTC_PACKET_EAPOL ||
type == BTC_PACKET_ARP) {
if (type == BTC_PACKET_ARP) {
coex_dm->arp_cnt++;
RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
"[BTCoex], ARP Packet Count = %d\n",
coex_dm->arp_cnt);
if (coex_dm->arp_cnt >= 10)
/* if APR PKT > 10 after connect, do not go to
* btc8821a1ant_act_wifi_conn_sp_pkt
*/
return;
}
RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
"[BTCoex], special Packet(%d) notify\n", type);
btc8821a1ant_act_wifi_conn_sp_pkt(btcoexist);

1
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.h
View File

@ -133,6 +133,7 @@ struct coex_dm_8821a_1ant {
u8 cur_retry_limit_type;
u8 pre_ampdu_time_type;
u8 cur_ampdu_time_type;
u32 arp_cnt;
u8 error_condition;
};