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iwlwifi: add debugfs to monitor force reset parameters

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Adding debugfs file to monitor the counters and other
information related to "force_reset" request.

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 2010-02-18 22:03:07 -08:00 committed by John W. Linville
parent 8a472da431
commit 528c3126a9
1 changed files with 32 additions and 2 deletions
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34
drivers/net/wireless/iwlwifi/iwl-debugfs.c
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@ -2221,6 +2221,36 @@ static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
return count; return count;
} }
static ssize_t iwl_dbgfs_force_reset_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos) {
struct iwl_priv *priv = file->private_data;
int i, pos = 0;
char buf[300];
const size_t bufsz = sizeof(buf);
struct iwl_force_reset *force_reset;
for (i = 0; i < IWL_MAX_FORCE_RESET; i++) {
force_reset = &priv->force_reset[i];
pos += scnprintf(buf + pos, bufsz - pos,
"Force reset method %d\n", i);
pos += scnprintf(buf + pos, bufsz - pos,
"\tnumber of reset request: %d\n",
force_reset->reset_request_count);
pos += scnprintf(buf + pos, bufsz - pos,
"\tnumber of reset request success: %d\n",
force_reset->reset_success_count);
pos += scnprintf(buf + pos, bufsz - pos,
"\tnumber of reset request reject: %d\n",
force_reset->reset_reject_count);
pos += scnprintf(buf + pos, bufsz - pos,
"\treset duration: %lu\n",
force_reset->reset_duration);
}
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}
static ssize_t iwl_dbgfs_force_reset_write(struct file *file, static ssize_t iwl_dbgfs_force_reset_write(struct file *file,
const char __user *user_buf, const char __user *user_buf,
size_t count, loff_t *ppos) { size_t count, loff_t *ppos) {
@ -2267,7 +2297,7 @@ DEBUGFS_READ_FILE_OPS(fh_reg);
DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon); DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
DEBUGFS_WRITE_FILE_OPS(internal_scan); DEBUGFS_WRITE_FILE_OPS(internal_scan);
DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta); DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
DEBUGFS_WRITE_FILE_OPS(force_reset); DEBUGFS_READ_WRITE_FILE_OPS(force_reset);
/* /*
* Create the debugfs files and directories * Create the debugfs files and directories
@ -2321,7 +2351,7 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR); DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR);
DEBUGFS_ADD_FILE(internal_scan, dir_debug, S_IWUSR); DEBUGFS_ADD_FILE(internal_scan, dir_debug, S_IWUSR);
DEBUGFS_ADD_FILE(plcp_delta, dir_debug, S_IWUSR | S_IRUSR); DEBUGFS_ADD_FILE(plcp_delta, dir_debug, S_IWUSR | S_IRUSR);
DEBUGFS_ADD_FILE(force_reset, dir_debug, S_IWUSR); DEBUGFS_ADD_FILE(force_reset, dir_debug, S_IWUSR | S_IRUSR);
if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) { if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) {
DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR); DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR);
DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR); DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR);