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| author |   Zhu Yi <yi.zhu@intel.com> | 2007-09-27 11:27:43 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@sunset.davemloft.net> | 2007-10-10 16:53:27 -0700 |
| commit | 0209dc11c769f51f037a17a4ea7bed43eaee998c (patch) | |
| tree | b1166b470ae87bd756bf7f7895b4707faa98e4eb | |
| parent | [PATCH] iwlwifi: set fixed rate through debugfs (diff) | |
| download | linux-dev-0209dc11c769f51f037a17a4ea7bed43eaee998c.tar.xz linux-dev-0209dc11c769f51f037a17a4ea7bed43eaee998c.zip | |
[PATCH] iwlwifi: add debugfs rate scale stats
This patch adds rates scale statistics to debugfs:
$ cat /sys/kernel/debug/ieee80211/phy<X>/stations/<mac>/rate_stats_table
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>
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-4965-rs.c | 40 |
1 files changed, 39 insertions, 1 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965-rs.c b/drivers/net/wireless/iwlwifi/iwl-4965-rs.c index e5f8cce443ba..287c75705c44 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965-rs.c +++ b/drivers/net/wireless/iwlwifi/iwl-4965-rs.c @@ -124,6 +124,7 @@ struct iwl_rate_scale_priv { struct iwl_scale_tbl_info lq_info[LQ_SIZE]; #ifdef CONFIG_MAC80211_DEBUGFS struct dentry *rs_sta_dbgfs_scale_table_file; + struct dentry *rs_sta_dbgfs_stats_table_file; struct iwl_rate dbg_fixed; struct iwl_priv *drv; #endif @@ -2068,6 +2069,7 @@ static ssize_t rs_sta_dbgfs_scale_table_write(struct file *file, return count; } + static ssize_t rs_sta_dbgfs_scale_table_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { @@ -2116,20 +2118,56 @@ static const struct file_operations rs_sta_dbgfs_scale_table_ops = { .read = rs_sta_dbgfs_scale_table_read, .open = open_file_generic, }; +static ssize_t rs_sta_dbgfs_stats_table_read(struct file *file, + char __user *user_buf, size_t count, loff_t *ppos) +{ + char buff[1024]; + int desc = 0; + int i, j; + + struct iwl_rate_scale_priv *rs_priv = file->private_data; + for (i = 0; i < LQ_SIZE; i++) { + desc += sprintf(buff+desc, "%s type=%d SGI=%d FAT=%d DUP=%d\n" + "rate=0x%X\n", + rs_priv->active_tbl == i?"*":"x", + rs_priv->lq_info[i].lq_type, + rs_priv->lq_info[i].is_SGI, + rs_priv->lq_info[i].is_fat, + rs_priv->lq_info[i].is_dup, + rs_priv->lq_info[i].current_rate.rate_n_flags); + for (j = 0; j < IWL_RATE_COUNT; j++) { + desc += sprintf(buff+desc, + "counter=%d success=%d %%=%d\n", + rs_priv->lq_info[i].win[j].counter, + rs_priv->lq_info[i].win[j].success_counter, + rs_priv->lq_info[i].win[j].success_ratio); + } + } + return simple_read_from_buffer(user_buf, count, ppos, buff, desc); +} + +static const struct file_operations rs_sta_dbgfs_stats_table_ops = { + .read = rs_sta_dbgfs_stats_table_read, + .open = open_file_generic, +}; static void rs_add_debugfs(void *priv, void *priv_sta, struct dentry *dir) { struct iwl_rate_scale_priv *rs_priv = priv_sta; rs_priv->rs_sta_dbgfs_scale_table_file = - debugfs_create_file("rate_scale_table", 0444, dir, + debugfs_create_file("rate_scale_table", 0600, dir, rs_priv, &rs_sta_dbgfs_scale_table_ops); + rs_priv->rs_sta_dbgfs_stats_table_file = + debugfs_create_file("rate_stats_table", 0600, dir, + rs_priv, &rs_sta_dbgfs_stats_table_ops); } static void rs_remove_debugfs(void *priv, void *priv_sta) { struct iwl_rate_scale_priv *rs_priv = priv_sta; debugfs_remove(rs_priv->rs_sta_dbgfs_scale_table_file); + debugfs_remove(rs_priv->rs_sta_dbgfs_stats_table_file); } #endif |