iwlwifi: configurable ampdu factor and density
authorWey-Yi Guy <wey-yi.w.guy@intel.com>
Wed, 4 Aug 2010 19:02:43 +0000 (12:02 -0700)
committerJohn W. Linville <linville@tuxdriver.com>
Tue, 24 Aug 2010 20:32:02 +0000 (16:32 -0400)
Add ampdu factor and density to .cfg, this allow both parameters
can be configure per device based.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
drivers/net/wireless/iwlwifi/iwl-core.c
drivers/net/wireless/iwlwifi/iwl-core.h
drivers/net/wireless/iwlwifi/iwl-dev.h

index 7754be4463d8adc9ac04c46872d67f4d85f0c821..346e0ad7e35102913e3416d1d0fca95de503c25e 100644 (file)
@@ -239,7 +239,11 @@ static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv,
                ht_info->cap |= IEEE80211_HT_CAP_MAX_AMSDU;
 
        ht_info->ampdu_factor = CFG_HT_RX_AMPDU_FACTOR_DEF;
+       if (priv->cfg->ampdu_factor)
+               ht_info->ampdu_factor = priv->cfg->ampdu_factor;
        ht_info->ampdu_density = CFG_HT_MPDU_DENSITY_DEF;
+       if (priv->cfg->ampdu_density)
+               ht_info->ampdu_density = priv->cfg->ampdu_density;
 
        ht_info->mcs.rx_mask[0] = 0xFF;
        if (rx_chains_num >= 2)
index edadca5100993cfcf9c22847f7327a68e943d1ae..3efab0e29b063ad99322d49687cf810d355bf014 100644 (file)
@@ -281,6 +281,8 @@ struct iwl_mod_params {
  * @need_dc_calib: need to perform init dc calibration
  * @bt_statistics: use BT version of statistics notification
  * @agg_time_limit: maximum number of uSec in aggregation
+ * @ampdu_factor: Maximum A-MPDU length factor
+ * @ampdu_density: Minimum A-MPDU spacing
  *
  * We enable the driver to be backward compatible wrt API version. The
  * driver specifies which APIs it supports (with @ucode_api_max being the
@@ -352,6 +354,8 @@ struct iwl_cfg {
        const bool need_dc_calib;
        const bool bt_statistics;
        u16 agg_time_limit;
+       u8 ampdu_factor;
+       u8 ampdu_density;
 };
 
 /***************************
index 91d9c8b3efebb6bb59d29e10581800817f751581..f72fbf4dc92bba38588db40e97c5d6523c85a389 100644 (file)
@@ -435,7 +435,13 @@ union iwl_ht_rate_supp {
        };
 };
 
-#define CFG_HT_RX_AMPDU_FACTOR_DEF  (0x3)
+#define CFG_HT_RX_AMPDU_FACTOR_8K   (0x0)
+#define CFG_HT_RX_AMPDU_FACTOR_16K  (0x1)
+#define CFG_HT_RX_AMPDU_FACTOR_32K  (0x2)
+#define CFG_HT_RX_AMPDU_FACTOR_64K  (0x3)
+#define CFG_HT_RX_AMPDU_FACTOR_DEF  CFG_HT_RX_AMPDU_FACTOR_64K
+#define CFG_HT_RX_AMPDU_FACTOR_MAX  CFG_HT_RX_AMPDU_FACTOR_64K
+#define CFG_HT_RX_AMPDU_FACTOR_MIN  CFG_HT_RX_AMPDU_FACTOR_8K
 
 /*
  * Maximal MPDU density for TX aggregation
@@ -444,8 +450,13 @@ union iwl_ht_rate_supp {
  * 6 - 8us density
  * 7 - 16us density
  */
+#define CFG_HT_MPDU_DENSITY_2USEC   (0x4)
 #define CFG_HT_MPDU_DENSITY_4USEC   (0x5)
+#define CFG_HT_MPDU_DENSITY_8USEC   (0x6)
+#define CFG_HT_MPDU_DENSITY_16USEC  (0x7)
 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
+#define CFG_HT_MPDU_DENSITY_MAX CFG_HT_MPDU_DENSITY_16USEC
+#define CFG_HT_MPDU_DENSITY_MIN     (0x1)
 
 struct iwl_ht_config {
        /* self configuration data */