wlcore: user smaller sqn padding for GEM
On recovery, we increase the current seq num by
WL1271_TX_SQN_POST_RECOVERY_PADDING in order to
compensate for packets we might have missed during
recovery.
It seems that some GEM APs have issues when the
gap is too big, so use a smaller padding in this case.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ti/wlcore/cmd.c b/drivers/net/wireless/ti/wlcore/cmd.c
index d298ead..05604ee 100644
--- a/drivers/net/wireless/ti/wlcore/cmd.c
+++ b/drivers/net/wireless/ti/wlcore/cmd.c
@@ -374,6 +374,7 @@
if (wlvif->bss_type == BSS_TYPE_AP_BSS &&
*hlid == wlvif->ap.bcast_hlid) {
+ u32 sqn_padding = WL1271_TX_SQN_POST_RECOVERY_PADDING;
/*
* save the total freed packets in the wlvif, in case this is
* recovery or suspend
@@ -384,9 +385,11 @@
* increment the initial seq number on recovery to account for
* transmitted packets that we haven't yet got in the FW status
*/
+ if (wlvif->encryption_type == KEY_GEM)
+ sqn_padding = WL1271_TX_SQN_POST_RECOVERY_PADDING_GEM;
+
if (test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags))
- wlvif->total_freed_pkts +=
- WL1271_TX_SQN_POST_RECOVERY_PADDING;
+ wlvif->total_freed_pkts += sqn_padding;
}
wl->links[*hlid].total_freed_pkts = 0;
diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 2996cef..1ab6dbd 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -902,6 +902,7 @@
u8 hlid, struct ieee80211_sta *sta)
{
struct wl1271_station *wl_sta;
+ u32 sqn_recovery_padding = WL1271_TX_SQN_POST_RECOVERY_PADDING;
wl_sta = (void *)sta->drv_priv;
wl_sta->total_freed_pkts = wl->links[hlid].total_freed_pkts;
@@ -910,9 +911,11 @@
* increment the initial seq number on recovery to account for
* transmitted packets that we haven't yet got in the FW status
*/
+ if (wlvif->encryption_type == KEY_GEM)
+ sqn_recovery_padding = WL1271_TX_SQN_POST_RECOVERY_PADDING_GEM;
+
if (test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags))
- wl_sta->total_freed_pkts +=
- WL1271_TX_SQN_POST_RECOVERY_PADDING;
+ wl_sta->total_freed_pkts += sqn_recovery_padding;
}
static void wlcore_save_freed_pkts_addr(struct wl1271 *wl,
diff --git a/drivers/net/wireless/ti/wlcore/wlcore_i.h b/drivers/net/wireless/ti/wlcore/wlcore_i.h
index 986da43..0e52556 100644
--- a/drivers/net/wireless/ti/wlcore/wlcore_i.h
+++ b/drivers/net/wireless/ti/wlcore/wlcore_i.h
@@ -45,6 +45,9 @@
#define WL1271_TX_SECURITY_LO16(s) ((u16)((s) & 0xffff))
#define WL1271_TX_SECURITY_HI32(s) ((u32)(((s) >> 16) & 0xffffffff))
#define WL1271_TX_SQN_POST_RECOVERY_PADDING 0xff
+/* Use smaller padding for GEM, as some APs have issues when it's too big */
+#define WL1271_TX_SQN_POST_RECOVERY_PADDING_GEM 0x20
+
#define WL1271_CIPHER_SUITE_GEM 0x00147201