Commit-ID: a85d7cca1204f2dba86d2f61693f0fe8c48f0fa5
Gitweb: http://git.kernel.org/tip/a85d7cca1204f2dba86d2f61693f0fe8c48f0fa5
Author: Johannes Berg <johannes.berg@xxxxxxxxx>
AuthorDate: Sat, 31 Jul 2010 08:34:10 -0700
Committer: John W. Linville <linville@xxxxxxxxxxxxx>
CommitDate: Mon, 16 Aug 2010 15:26:38 -0400
iwlwifi: track IBSS manager status
Only the IBSS manager, ie. the station that sent
the IBSS beacon last, should be replying to probe
responses. This requires implementing the mac80211
tx_last_beacon callback, which we can do thanks to
the ucode beacon notification.
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@xxxxxxxxx>
Signed-off-by: John W. Linville <linville@xxxxxxxxxxxxx>
---
drivers/net/wireless/iwlwifi/iwl-agn.c | 5 ++++-
drivers/net/wireless/iwlwifi/iwl-commands.h | 5 +++++
drivers/net/wireless/iwlwifi/iwl-core.c | 8 ++++++++
drivers/net/wireless/iwlwifi/iwl-core.h | 1 +
drivers/net/wireless/iwlwifi/iwl-dev.h | 3 +++
drivers/net/wireless/iwlwifi/iwl3945-base.c | 5 ++++-
6 files changed, 25 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 8684f26..43e078b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -764,10 +764,10 @@ static void iwl_bg_ucode_trace(unsigned long data)
static void iwl_rx_beacon_notif(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb)
{
-#ifdef CONFIG_IWLWIFI_DEBUG
struct iwl_rx_packet *pkt = rxb_addr(rxb);
struct iwl4965_beacon_notif *beacon =
(struct iwl4965_beacon_notif *)pkt->u.raw;
+#ifdef CONFIG_IWLWIFI_DEBUG
u8 rate = iwl_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags);
IWL_DEBUG_RX(priv, "beacon status %x retries %d iss %d "
@@ -779,6 +779,8 @@ static void iwl_rx_beacon_notif(struct iwl_priv *priv,
le32_to_cpu(beacon->low_tsf), rate);
#endif
+ priv->ibss_manager = le32_to_cpu(beacon->ibss_mgr_status);
+
if ((priv->iw_mode == NL80211_IFTYPE_AP) &&
(!test_bit(STATUS_EXIT_PENDING, &priv->status)))
queue_work(priv->workqueue, &priv->beacon_update);
@@ -3881,6 +3883,7 @@ static struct ieee80211_ops iwl_hw_ops = {
.sta_remove = iwl_mac_sta_remove,
.channel_switch = iwl_mac_channel_switch,
.flush = iwl_mac_flush,
+ .tx_last_beacon = iwl_mac_tx_last_beacon,
};
static void iwl_hw_detect(struct iwl_priv *priv)
diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h
index 60725a5..9435fd9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-commands.h
+++ b/drivers/net/wireless/iwlwifi/iwl-commands.h
@@ -2919,6 +2919,11 @@ struct iwl_scancomplete_notification {
*
*****************************************************************************/
+enum iwl_ibss_manager {
+ IWL_NOT_IBSS_MANAGER = 0,
+ IWL_IBSS_MANAGER = 1,
+};
+
/*
* BEACON_NOTIFICATION = 0x90 (notification only, not a command)
*/
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 78882f9..ccdf3c0 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1666,6 +1666,14 @@ int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
}
EXPORT_SYMBOL(iwl_mac_conf_tx);
+int iwl_mac_tx_last_beacon(struct ieee80211_hw *hw)
+{
+ struct iwl_priv *priv = hw->priv;
+
+ return priv->ibss_manager == IWL_IBSS_MANAGER;
+}
+EXPORT_SYMBOL_GPL(iwl_mac_tx_last_beacon);
+
static void iwl_ht_conf(struct iwl_priv *priv,
struct ieee80211_vif *vif)
{
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index cca7428..7f1aaf2 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -350,6 +350,7 @@ struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg,
void iwl_activate_qos(struct iwl_priv *priv);
int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
const struct ieee80211_tx_queue_params *params);
+int iwl_mac_tx_last_beacon(struct ieee80211_hw *hw);
void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt);
int iwl_check_rxon_cmd(struct iwl_priv *priv);
int iwl_full_rxon_required(struct iwl_priv *priv);
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index f35bcad..5996355 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -1109,6 +1109,9 @@ struct iwl_priv {
u32 ucode_beacon_time;
int missed_beacon_threshold;
+ /* track IBSS manager (last beacon) status */
+ u32 ibss_manager;
+
/* storing the jiffies when the plcp error rate is received */
unsigned long plcp_jiffies;
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index de6d592..b14eaf9 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -814,9 +814,9 @@ static void iwl3945_bg_beacon_update(struct work_struct *work)
static void iwl3945_rx_beacon_notif(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb)
{
-#ifdef CONFIG_IWLWIFI_DEBUG
struct iwl_rx_packet *pkt = rxb_addr(rxb);
struct iwl3945_beacon_notif *beacon = &(pkt->u.beacon_status);
+#ifdef CONFIG_IWLWIFI_DEBUG
u8 rate = beacon->beacon_notify_hdr.rate;
IWL_DEBUG_RX(priv, "beacon status %x retries %d iss %d "
@@ -828,6 +828,8 @@ static void iwl3945_rx_beacon_notif(struct iwl_priv *priv,
le32_to_cpu(beacon->low_tsf), rate);
#endif
+ priv->ibss_manager = le32_to_cpu(beacon->ibss_mgr_status);
+
if ((priv->iw_mode == NL80211_IFTYPE_AP) &&
(!test_bit(STATUS_EXIT_PENDING, &priv->status)))
queue_work(priv->workqueue, &priv->beacon_update);
@@ -3803,6 +3805,7 @@ static struct ieee80211_ops iwl3945_hw_ops = {
.hw_scan = iwl_mac_hw_scan,
.sta_add = iwl3945_mac_sta_add,
.sta_remove = iwl_mac_sta_remove,
+ .tx_last_beacon = iwl_mac_tx_last_beacon,
};
static int iwl3945_init_drv(struct iwl_priv *priv)
--
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