From patchwork Fri Jun 25 22:42:57 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Reinette Chatre X-Patchwork-Id: 108164 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.4/8.14.3) with ESMTP id o5PMhNpX026731 for ; Fri, 25 Jun 2010 22:43:23 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756850Ab0FYWnW (ORCPT ); Fri, 25 Jun 2010 18:43:22 -0400 Received: from mga14.intel.com ([143.182.124.37]:44617 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756830Ab0FYWnJ (ORCPT ); Fri, 25 Jun 2010 18:43:09 -0400 Received: from azsmga001.ch.intel.com ([10.2.17.19]) by azsmga102.ch.intel.com with ESMTP; 25 Jun 2010 15:43:07 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.53,484,1272870000"; d="scan'208";a="293202672" Received: from rchatre-desk.jf.intel.com (HELO localhost.localdomain) ([10.23.232.219]) by azsmga001.ch.intel.com with ESMTP; 25 Jun 2010 15:43:06 -0700 From: Reinette Chatre To: linville@tuxdriver.com Cc: linux-wireless@vger.kernel.org, ipw3945-devel@lists.sourceforge.net, Daniel Halperin , Reinette Chatre Subject: [PATCH 4/8] iwlwifi: update LQ for bcast station on channel change Date: Fri, 25 Jun 2010 15:42:57 -0700 Message-Id: <1277505781-25268-5-git-send-email-reinette.chatre@intel.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1277505781-25268-1-git-send-email-reinette.chatre@intel.com> References: <1277505781-25268-1-git-send-email-reinette.chatre@intel.com> Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter.kernel.org [140.211.167.41]); Fri, 25 Jun 2010 22:43:23 +0000 (UTC) diff --git a/drivers/net/wireless/iwlwifi/iwl-1000.c b/drivers/net/wireless/iwlwifi/iwl-1000.c index 24743b9..1daf159 100644 --- a/drivers/net/wireless/iwlwifi/iwl-1000.c +++ b/drivers/net/wireless/iwlwifi/iwl-1000.c @@ -217,6 +217,7 @@ static struct iwl_lib_ops iwl1000_lib = { .set_ct_kill = iwl1000_set_ct_threshold, }, .manage_ibss_station = iwlagn_manage_ibss_station, + .update_bcast_station = iwl_update_bcast_station, .debugfs_ops = { .rx_stats_read = iwl_ucode_rx_stats_read, .tx_stats_read = iwl_ucode_tx_stats_read, diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c index 67526a1..1dd3bc4 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.c +++ b/drivers/net/wireless/iwlwifi/iwl-4965.c @@ -2280,6 +2280,7 @@ static struct iwl_lib_ops iwl4965_lib = { .set_ct_kill = iwl4965_set_ct_threshold, }, .manage_ibss_station = iwlagn_manage_ibss_station, + .update_bcast_station = iwl_update_bcast_station, .debugfs_ops = { .rx_stats_read = iwl_ucode_rx_stats_read, .tx_stats_read = iwl_ucode_tx_stats_read, diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c index fa2dbb5..b8f3e20 100644 --- a/drivers/net/wireless/iwlwifi/iwl-5000.c +++ b/drivers/net/wireless/iwlwifi/iwl-5000.c @@ -393,6 +393,7 @@ static struct iwl_lib_ops iwl5000_lib = { .set_ct_kill = iwl5000_set_ct_threshold, }, .manage_ibss_station = iwlagn_manage_ibss_station, + .update_bcast_station = iwl_update_bcast_station, .debugfs_ops = { .rx_stats_read = iwl_ucode_rx_stats_read, .tx_stats_read = iwl_ucode_tx_stats_read, @@ -455,6 +456,7 @@ static struct iwl_lib_ops iwl5150_lib = { .set_ct_kill = iwl5150_set_ct_threshold, }, .manage_ibss_station = iwlagn_manage_ibss_station, + .update_bcast_station = iwl_update_bcast_station, .debugfs_ops = { .rx_stats_read = iwl_ucode_rx_stats_read, .tx_stats_read = iwl_ucode_tx_stats_read, diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c index c909a9c..61cf0b3 100644 --- a/drivers/net/wireless/iwlwifi/iwl-6000.c +++ b/drivers/net/wireless/iwlwifi/iwl-6000.c @@ -318,6 +318,7 @@ static struct iwl_lib_ops iwl6000_lib = { .set_calib_version = iwl6000_set_calib_version, }, .manage_ibss_station = iwlagn_manage_ibss_station, + .update_bcast_station = iwl_update_bcast_station, .debugfs_ops = { .rx_stats_read = iwl_ucode_rx_stats_read, .tx_stats_read = iwl_ucode_tx_stats_read, diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index 329e510..f47a58f 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -2110,6 +2110,9 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed) iwl_set_flags_for_band(priv, conf->channel->band, priv->vif); spin_unlock_irqrestore(&priv->lock, flags); + if (priv->cfg->ops->lib->update_bcast_station) + ret = priv->cfg->ops->lib->update_bcast_station(priv); + set_ch_out: /* The list of supported rates and rate mask can be different * for each band; since the band may have changed, reset diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h index cdcb51d..15930e0 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.h +++ b/drivers/net/wireless/iwlwifi/iwl-core.h @@ -196,6 +196,7 @@ struct iwl_lib_ops { /* station management */ int (*manage_ibss_station)(struct iwl_priv *priv, struct ieee80211_vif *vif, bool add); + int (*update_bcast_station)(struct iwl_priv *priv); /* recover from tx queue stall */ void (*recover_from_tx_stall)(unsigned long data); /* check for plcp health */ diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c index 6a9cd08..9511f03 100644 --- a/drivers/net/wireless/iwlwifi/iwl-sta.c +++ b/drivers/net/wireless/iwlwifi/iwl-sta.c @@ -1259,6 +1259,36 @@ int iwl_alloc_bcast_station(struct iwl_priv *priv, bool init_lq) } EXPORT_SYMBOL_GPL(iwl_alloc_bcast_station); +/** + * iwl_update_bcast_station - update broadcast station's LQ command + * + * Only used by iwlagn. Placed here to have all bcast station management + * code together. + */ +int iwl_update_bcast_station(struct iwl_priv *priv) +{ + unsigned long flags; + struct iwl_link_quality_cmd *link_cmd; + u8 sta_id = priv->hw_params.bcast_sta_id; + + link_cmd = iwl_sta_alloc_lq(priv, sta_id); + if (!link_cmd) { + IWL_ERR(priv, "Unable to initialize rate scaling for bcast station.\n"); + return -ENOMEM; + } + + spin_lock_irqsave(&priv->sta_lock, flags); + if (priv->stations[sta_id].lq) + kfree(priv->stations[sta_id].lq); + else + IWL_DEBUG_INFO(priv, "Bcast station rate scaling has not been initialized yet.\n"); + priv->stations[sta_id].lq = link_cmd; + spin_unlock_irqrestore(&priv->sta_lock, flags); + + return 0; +} +EXPORT_SYMBOL_GPL(iwl_update_bcast_station); + void iwl_dealloc_bcast_station(struct iwl_priv *priv) { unsigned long flags; diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.h b/drivers/net/wireless/iwlwifi/iwl-sta.h index 619bb99..ba95b1a 100644 --- a/drivers/net/wireless/iwlwifi/iwl-sta.h +++ b/drivers/net/wireless/iwlwifi/iwl-sta.h @@ -60,6 +60,7 @@ void iwl_restore_stations(struct iwl_priv *priv); void iwl_clear_ucode_stations(struct iwl_priv *priv); int iwl_alloc_bcast_station(struct iwl_priv *priv, bool init_lq); void iwl_dealloc_bcast_station(struct iwl_priv *priv); +int iwl_update_bcast_station(struct iwl_priv *priv); int iwl_get_free_ucode_key_index(struct iwl_priv *priv); int iwl_send_add_sta(struct iwl_priv *priv, struct iwl_addsta_cmd *sta, u8 flags);