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iwlwifi: control 11n capabilities through module param
This patch adds module param 11n_disable to allow configuration of 11n capabilities. The default value of this param is 11n enabled (value 0). Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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@ -2075,6 +2075,9 @@ int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw,
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IWL_DEBUG_HT("A-MPDU action on addr %s tid %d\n",
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print_mac(mac, addr), tid);
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if (!(priv->cfg->sku & IWL_SKU_N))
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return -EACCES;
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switch (action) {
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case IEEE80211_AMPDU_RX_START:
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IWL_DEBUG_HT("start Rx\n");
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@ -2457,11 +2460,14 @@ MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)");
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module_param_named(queues_num, iwl4965_mod_params.num_of_queues, int, 0444);
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MODULE_PARM_DESC(queues_num, "number of hw queues.");
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/* QoS */
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module_param_named(qos_enable, iwl4965_mod_params.enable_qos, int, 0444);
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MODULE_PARM_DESC(qos_enable, "enable all QoS functionality");
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/* 11n */
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module_param_named(11n_disable, iwl4965_mod_params.disable_11n, int, 0444);
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MODULE_PARM_DESC(11n_disable, "disable 11n functionality");
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module_param_named(amsdu_size_8K, iwl4965_mod_params.amsdu_size_8K, int, 0444);
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MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size");
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module_param_named(fw_restart4965, iwl4965_mod_params.restart_fw, int, 0444);
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MODULE_PARM_DESC(fw_restart4965, "restart firmware in case of error");
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@ -1540,6 +1540,8 @@ module_param_named(queues_num50, iwl50_mod_params.num_of_queues, int, 0444);
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MODULE_PARM_DESC(queues_num50, "number of hw queues in 50xx series");
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module_param_named(qos_enable50, iwl50_mod_params.enable_qos, int, 0444);
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MODULE_PARM_DESC(qos_enable50, "enable all 50XX QoS functionality");
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module_param_named(11n_disable50, iwl50_mod_params.disable_11n, int, 0444);
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MODULE_PARM_DESC(11n_disable50, "disable 50XX 11n functionality");
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module_param_named(amsdu_size_8K50, iwl50_mod_params.amsdu_size_8K, int, 0444);
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MODULE_PARM_DESC(amsdu_size_8K50, "enable 8K amsdu size in 50XX series");
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module_param_named(fw_restart50, iwl50_mod_params.restart_fw, int, 0444);
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@ -495,7 +495,9 @@ static int iwlcore_init_geos(struct iwl_priv *priv)
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sband->bitrates = &rates[IWL_FIRST_OFDM_RATE];
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sband->n_bitrates = IWL_RATE_COUNT - IWL_FIRST_OFDM_RATE;
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iwlcore_init_ht_hw_capab(priv, &sband->ht_info, IEEE80211_BAND_5GHZ);
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if (priv->cfg->sku & IWL_SKU_N)
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iwlcore_init_ht_hw_capab(priv, &sband->ht_info,
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IEEE80211_BAND_5GHZ);
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sband = &priv->bands[IEEE80211_BAND_2GHZ];
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sband->channels = channels;
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@ -503,7 +505,9 @@ static int iwlcore_init_geos(struct iwl_priv *priv)
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sband->bitrates = rates;
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sband->n_bitrates = IWL_RATE_COUNT;
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iwlcore_init_ht_hw_capab(priv, &sband->ht_info, IEEE80211_BAND_2GHZ);
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if (priv->cfg->sku & IWL_SKU_N)
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iwlcore_init_ht_hw_capab(priv, &sband->ht_info,
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IEEE80211_BAND_2GHZ);
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priv->ieee_channels = channels;
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priv->ieee_rates = rates;
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@ -819,8 +823,9 @@ int iwl_setup_mac(struct iwl_priv *priv)
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IEEE80211_HW_NOISE_DBM;
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/* Default value; 4 EDCA QOS priorities */
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hw->queues = 4;
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/* Enhanced value; more queues, to support 11n aggregation */
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hw->ampdu_queues = 12;
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/* queues to support 11n aggregation */
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if (priv->cfg->sku & IWL_SKU_N)
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hw->ampdu_queues = 12;
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hw->conf.beacon_int = 100;
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@ -853,6 +858,9 @@ int iwl_set_hw_params(struct iwl_priv *priv)
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priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_4K;
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priv->hw_params.max_pkt_size = priv->hw_params.rx_buf_size - 256;
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if (priv->cfg->mod_params->disable_11n)
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priv->cfg->sku &= ~IWL_SKU_N;
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/* Device-specific setup */
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return priv->cfg->ops->lib->set_hw_params(priv);
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}
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@ -159,6 +159,7 @@ struct iwl_mod_params {
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int disable_hw_scan; /* def: 0 = use h/w scan */
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int num_of_queues; /* def: HW dependent */
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int enable_qos; /* def: 1 = use quality of service */
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int disable_11n; /* def: 0 = disable 11n capabilities */
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int amsdu_size_8K; /* def: 1 = enable 8K amsdu size */
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int antenna; /* def: 0 = both antennas (use diversity) */
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int restart_fw; /* def: 1 = restart firmware */
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