iwlagn: send simple LQ command for WoWLAN

For some reason, WoWLAN doesn't always seem to
be happy with more advanced LQ commands. Since
we don't need them as we're not going to send
a lot of data, simply program the station with
the very simple default LQ command.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-sta.c b/drivers/net/wireless/iwlwifi/iwl-agn-sta.c
index 8f0b86de1863f75df092290c1914f2383710f4eb..8e7177b38e876b4c402b5d641e8ccaa819532a4f 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-agn-sta.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-sta.c
@@ -35,22 +35,17 @@
 #include "iwl-agn.h"
 #include "iwl-trans.h"
 
-static struct iwl_link_quality_cmd *
-iwl_sta_alloc_lq(struct iwl_priv *priv, struct iwl_rxon_context *ctx, u8 sta_id)
+void iwl_sta_fill_lq(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
+                    u8 sta_id, struct iwl_link_quality_cmd *link_cmd)
 {
        int i, r;
-       struct iwl_link_quality_cmd *link_cmd;
        u32 rate_flags = 0;
        __le32 rate_n_flags;
 
-       link_cmd = kzalloc(sizeof(struct iwl_link_quality_cmd), GFP_KERNEL);
-       if (!link_cmd) {
-               IWL_ERR(priv, "Unable to allocate memory for LQ cmd.\n");
-               return NULL;
-       }
-
        lockdep_assert_held(&priv->shrd->mutex);
 
+       memset(link_cmd, 0, sizeof(*link_cmd));
+
        /* Set up the rate scaling to start at selected rate, fall back
         * all the way down to 1M in IEEE order, and then spin on 1M */
        if (priv->band == IEEE80211_BAND_5GHZ)
@@ -87,6 +82,20 @@ iwl_sta_alloc_lq(struct iwl_priv *priv, struct iwl_rxon_context *ctx, u8 sta_id)
                cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF);
 
        link_cmd->sta_id = sta_id;
+}
+
+static struct iwl_link_quality_cmd *
+iwl_sta_alloc_lq(struct iwl_priv *priv, struct iwl_rxon_context *ctx, u8 sta_id)
+{
+       struct iwl_link_quality_cmd *link_cmd;
+
+       link_cmd = kzalloc(sizeof(struct iwl_link_quality_cmd), GFP_KERNEL);
+       if (!link_cmd) {
+               IWL_ERR(priv, "Unable to allocate memory for LQ cmd.\n");
+               return NULL;
+       }
+
+       iwl_sta_fill_lq(priv, ctx, sta_id, link_cmd);
 
        return link_cmd;
 }

diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c
index 580a4d702ff3c019ef7c84880ae080f272eae3eb..30bfdd36e42cbc1548745d908cec3867456bd88c 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-sta.c
+++ b/drivers/net/wireless/iwlwifi/iwl-sta.c
@@ -595,8 +595,11 @@ void iwl_restore_stations(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
                               sizeof(struct iwl_addsta_cmd));
                        send_lq = false;
                        if (priv->stations[i].lq) {
-                               memcpy(&lq, priv->stations[i].lq,
-                                      sizeof(struct iwl_link_quality_cmd));
+                               if (priv->shrd->wowlan)
+                                       iwl_sta_fill_lq(priv, ctx, i, &lq);
+                               else
+                                       memcpy(&lq, priv->stations[i].lq,
+                                              sizeof(struct iwl_link_quality_cmd));
                                send_lq = true;
                        }
                        spin_unlock_irqrestore(&priv->shrd->sta_lock,

diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.h b/drivers/net/wireless/iwlwifi/iwl-sta.h
index 1bca0dabde8d1009309a3e662db95aebca3b3b8c..b86c8937f5da772bc44f65536ca2f9731d8eee7c 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-sta.h
+++ b/drivers/net/wireless/iwlwifi/iwl-sta.h
@@ -58,6 +58,8 @@ int iwl_mac_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 u8 iwl_prep_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
                    const u8 *addr, bool is_ap, struct ieee80211_sta *sta);
 
+void iwl_sta_fill_lq(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
+                    u8 sta_id, struct iwl_link_quality_cmd *link_cmd);
 int iwl_send_lq_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
                    struct iwl_link_quality_cmd *lq, u8 flags, bool init);
 void iwl_reprogram_ap_sta(struct iwl_priv *priv, struct iwl_rxon_context *ctx);