iwlwifi: show qos AC parameters

Show current qos AC parameters in sysfs

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 21 insertions, 1 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 13a35dc710a4..3ebf6cf53a51 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -2475,6 +2475,26 @@ static ssize_t show_power_level(struct device *d,
 static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level,
                    store_power_level);
 
+static ssize_t show_qos(struct device *d,
+                                struct device_attribute *attr, char *buf)
+{
+        struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
+        char *p = buf;
+        int   q;
+
+        for (q = 0; q < AC_NUM; q++) {
+                p += sprintf(p, "\tcw_min\tcw_max\taifsn\ttxop\n");
+                p += sprintf(p, "AC[%d]\t%u\t%u\t%u\t%u\n", q,
+                             priv->qos_data.def_qos_parm.ac[q].cw_min,
+                             priv->qos_data.def_qos_parm.ac[q].cw_max,
+                             priv->qos_data.def_qos_parm.ac[q].aifsn,
+                             priv->qos_data.def_qos_parm.ac[q].edca_txop);
+        }
+
+        return p - buf + 1;
+}
+
+static DEVICE_ATTR(qos, S_IRUGO, show_qos, NULL);
 
 static ssize_t show_statistics(struct device *d,
                                struct device_attribute *attr, char *buf)
@@ -2572,7 +2592,7 @@ static struct attribute *iwl_sysfs_entries[] = {
         &dev_attr_debug_level.attr,
 #endif
         &dev_attr_version.attr,
-
+        &dev_attr_qos.attr,
         NULL
 };