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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>
This commit is contained in:
Eliad Peller 2014-07-11 03:01:27 +03:00 committed by John W. Linville
parent 50d26aa338
commit 30a0035888
3 changed files with 13 additions and 4 deletions
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7
drivers/net/wireless/ti/wlcore/cmd.c
View File

@ -374,6 +374,7 @@ void wl12xx_free_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid)
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 @@ void wl12xx_free_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid)
* 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;

7
drivers/net/wireless/ti/wlcore/main.c
View File

@ -902,6 +902,7 @@ static void wlcore_save_freed_pkts(struct wl1271 *wl, struct wl12xx_vif *wlvif,
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 @@ static void wlcore_save_freed_pkts(struct wl1271 *wl, struct wl12xx_vif *wlvif,
* 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,

3
drivers/net/wireless/ti/wlcore/wlcore_i.h
View File

@ -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