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iwlwifi: Traffic type and counter for debugFs

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Break down the traffic type and counter for both Tx and Rx.
Enhance the tx_statistics and rx_statistics debugfs function and move
to /sys/kernel/debug/ieee80211/phy0/iwlagn/debug directory to help
better debugging both driver and uCode related problems.

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>
This commit is contained in:
Wey-Yi Guy
2009-08-07 15:41:40 -07:00
committed by John W. Linville
parent 20594eb0da
commit 22fdf3c9e1
11 changed files with 324 additions and 53 deletions
Download Patch File Download Diff File Expand all files Collapse all files

129
drivers/net/wireless/iwlwifi/iwl-debugfs.c
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@@ -126,18 +126,58 @@ static ssize_t iwl_dbgfs_tx_statistics_read(struct file *file,
size_t count, loff_t *ppos) {
struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
char buf[256];
char *buf;
int pos = 0;
const size_t bufsz = sizeof(buf);
pos += scnprintf(buf + pos, bufsz - pos, "mgmt: %u\n",
priv->tx_stats[0].cnt);
pos += scnprintf(buf + pos, bufsz - pos, "ctrl: %u\n",
priv->tx_stats[1].cnt);
pos += scnprintf(buf + pos, bufsz - pos, "data: %u\n",
priv->tx_stats[2].cnt);
int cnt;
ssize_t ret;
const size_t bufsz = 100 + sizeof(char) * 24 * (MANAGEMENT_MAX + CONTROL_MAX);
buf = kzalloc(bufsz, GFP_KERNEL);
if (!buf)
return -ENOMEM;
pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
pos += scnprintf(buf + pos, bufsz - pos,
"\t%s\t\t: %u\n",
get_mgmt_string(cnt),
priv->tx_stats.mgmt[cnt]);
}
pos += scnprintf(buf + pos, bufsz - pos, "Control\n");
for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
pos += scnprintf(buf + pos, bufsz - pos,
"\t%s\t\t: %u\n",
get_ctrl_string(cnt),
priv->tx_stats.ctrl[cnt]);
}
pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
priv->tx_stats.data_cnt);
pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
priv->tx_stats.data_bytes);
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
kfree(buf);
return ret;
}
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
static ssize_t iwl_dbgfs_tx_statistics_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_priv *priv = file->private_data;
u32 clear_flag;
char buf[8];
int buf_size;
memset(buf, 0, sizeof(buf));
buf_size = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, buf_size))
return -EFAULT;
if (sscanf(buf, "%x", &clear_flag) != 1)
return -EFAULT;
if (clear_flag == 1)
iwl_clear_tx_stats(priv);
return count;
}
static ssize_t iwl_dbgfs_rx_statistics_read(struct file *file,
@@ -145,18 +185,59 @@ static ssize_t iwl_dbgfs_rx_statistics_read(struct file *file,
size_t count, loff_t *ppos) {
struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
char buf[256];
char *buf;
int pos = 0;
const size_t bufsz = sizeof(buf);
int cnt;
ssize_t ret;
const size_t bufsz = 100 +
sizeof(char) * 24 * (MANAGEMENT_MAX + CONTROL_MAX);
buf = kzalloc(bufsz, GFP_KERNEL);
if (!buf)
return -ENOMEM;
pos += scnprintf(buf + pos, bufsz - pos, "mgmt: %u\n",
priv->rx_stats[0].cnt);
pos += scnprintf(buf + pos, bufsz - pos, "ctrl: %u\n",
priv->rx_stats[1].cnt);
pos += scnprintf(buf + pos, bufsz - pos, "data: %u\n",
priv->rx_stats[2].cnt);
pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
pos += scnprintf(buf + pos, bufsz - pos,
"\t%s\t\t: %u\n",
get_mgmt_string(cnt),
priv->rx_stats.mgmt[cnt]);
}
pos += scnprintf(buf + pos, bufsz - pos, "Control:\n");
for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
pos += scnprintf(buf + pos, bufsz - pos,
"\t%s\t\t: %u\n",
get_ctrl_string(cnt),
priv->rx_stats.ctrl[cnt]);
}
pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
priv->rx_stats.data_cnt);
pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
priv->rx_stats.data_bytes);
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
kfree(buf);
return ret;
}
static ssize_t iwl_dbgfs_rx_statistics_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_priv *priv = file->private_data;
u32 clear_flag;
char buf[8];
int buf_size;
memset(buf, 0, sizeof(buf));
buf_size = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, buf_size))
return -EFAULT;
if (sscanf(buf, "%x", &clear_flag) != 1)
return -EFAULT;
if (clear_flag == 1)
iwl_clear_rx_stats(priv);
return count;
}
#define BYTE1_MASK 0x000000ff;
@@ -700,8 +781,6 @@ DEBUGFS_READ_WRITE_FILE_OPS(sram);
DEBUGFS_WRITE_FILE_OPS(log_event);
DEBUGFS_READ_FILE_OPS(nvm);
DEBUGFS_READ_FILE_OPS(stations);
DEBUGFS_READ_FILE_OPS(rx_statistics);
DEBUGFS_READ_FILE_OPS(tx_statistics);
DEBUGFS_READ_FILE_OPS(channels);
DEBUGFS_READ_FILE_OPS(status);
DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
@@ -808,6 +887,8 @@ static ssize_t iwl_dbgfs_traffic_log_write(struct file *file,
return count;
}
DEBUGFS_READ_WRITE_FILE_OPS(rx_statistics);
DEBUGFS_READ_WRITE_FILE_OPS(tx_statistics);
DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
/*
@@ -841,8 +922,6 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
DEBUGFS_ADD_FILE(sram, data);
DEBUGFS_ADD_FILE(log_event, data);
DEBUGFS_ADD_FILE(stations, data);
DEBUGFS_ADD_FILE(rx_statistics, data);
DEBUGFS_ADD_FILE(tx_statistics, data);
DEBUGFS_ADD_FILE(channels, data);
DEBUGFS_ADD_FILE(status, data);
DEBUGFS_ADD_FILE(interrupt, data);
@@ -852,6 +931,8 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
#endif
DEBUGFS_ADD_FILE(thermal_throttling, data);
DEBUGFS_ADD_FILE(disable_ht40, data);
DEBUGFS_ADD_FILE(rx_statistics, debug);
DEBUGFS_ADD_FILE(tx_statistics, debug);
DEBUGFS_ADD_FILE(traffic_log, debug);
DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal);
DEBUGFS_ADD_BOOL(disable_chain_noise, rf,
@@ -879,8 +960,6 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv)
return;
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_nvm);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_rx_statistics);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_tx_statistics);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_sram);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_log_event);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_stations);
@@ -894,6 +973,8 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv)
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_thermal_throttling);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_disable_ht40);
DEBUGFS_REMOVE(priv->dbgfs->dir_data);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_rx_statistics);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_tx_statistics);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_traffic_log);
DEBUGFS_REMOVE(priv->dbgfs->dir_debug);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity);