From c5745187a4812f2991a58e469a866582a7326d91 Mon Sep 17 00:00:00 2001 From: Ohad Ben-Cohen Date: Wed, 30 Mar 2011 16:35:59 +0200 Subject: wl12xx: fix roaming The wl12xx device normally drops all frames coming from BSSID it is not joined with. This behavior is configured today by the wl12xx driver in response to a handful of ieee80211_bss_change and ieee80211_conf_changed notification flags, such as BSS_CHANGED_ASSOC, BSS_CHANGED_BSSID, IEEE80211_CONF_CHANGE_IDLE, etc.. This breaks when we roam to a new BSSID, where authentication frames are sent before any BSS_CHANGED/CONF_CHANGED flags are received. When this happens the hardware silently drops the authentication responses, and the roaming fails. Ideally this aggressive filtering behavior of the device should be disabled upon a notification from mac80211. Such notification will take place after multi-channel support will be added: mac80211 will likely send a remain-on-channel notification to drivers when entering sensitive states (like authentication), otherwise the firmware might jump to different channels (to serve a different role). Until those notifications materialize, disable the hw BSSID filter when authentication requests are sent, so roaming would work. Signed-off-by: Ohad Ben-Cohen Reviewed-by: Luciano Coelho Signed-off-by: Luciano Coelho --- drivers/net/wireless/wl12xx/io.h | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/net/wireless/wl12xx/io.h') diff --git a/drivers/net/wireless/wl12xx/io.h b/drivers/net/wireless/wl12xx/io.h index e6199eb51936..36e185583ec4 100644 --- a/drivers/net/wireless/wl12xx/io.h +++ b/drivers/net/wireless/wl12xx/io.h @@ -171,5 +171,6 @@ int wl1271_free_hw(struct wl1271 *wl); irqreturn_t wl1271_irq(int irq, void *data); bool wl1271_set_block_size(struct wl1271 *wl); int wl1271_tx_dummy_packet(struct wl1271 *wl); +void wl1271_configure_filters(struct wl1271 *wl, unsigned int filters); #endif -- cgit