if (iwlagn_mod_params.plcp_check &&
!iwlagn_good_plcp_health(priv, cur_ofdm, cur_ofdm_ht, msecs))
- iwl_force_reset(priv, IWL_RF_RESET, false);
+ iwl_force_rf_reset(priv, false);
}
/* Calculate noise level, based on measurements during network silence just
priv->ucode_owner = IWL_OWNERSHIP_DRIVER;
- /* initialize force reset */
- priv->force_reset[IWL_RF_RESET].reset_duration =
- IWL_DELAY_NEXT_FORCE_RF_RESET;
- priv->force_reset[IWL_FW_RESET].reset_duration =
- IWL_DELAY_NEXT_FORCE_FW_RELOAD;
-
priv->rx_statistics_jiffies = jiffies;
/* Choose which receivers/antennas to use */
/* scan */
void iwlagn_post_scan(struct iwl_priv *priv);
void iwlagn_disable_roc(struct iwl_priv *priv);
+int iwl_force_rf_reset(struct iwl_priv *priv, bool external);
/* bt coex */
void iwlagn_send_advance_bt_config(struct iwl_priv *priv);
}
#endif
-static void iwl_force_rf_reset(struct iwl_priv *priv)
+int iwl_force_rf_reset(struct iwl_priv *priv, bool external)
{
+ struct iwl_rf_reset *rf_reset;
+
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return;
+ return -EAGAIN;
if (!iwl_is_any_associated(priv)) {
IWL_DEBUG_SCAN(priv, "force reset rejected: not associated\n");
- return;
+ return -ENOLINK;
}
+
+ rf_reset = &priv->rf_reset;
+ rf_reset->reset_request_count++;
+ if (!external && rf_reset->last_reset_jiffies &&
+ time_after(rf_reset->last_reset_jiffies +
+ IWL_DELAY_NEXT_FORCE_RF_RESET, jiffies)) {
+ IWL_DEBUG_INFO(priv, "RF reset rejected\n");
+ rf_reset->reset_reject_count++;
+ return -EAGAIN;
+ }
+ rf_reset->reset_success_count++;
+ rf_reset->last_reset_jiffies = jiffies;
+
/*
* There is no easy and better way to force reset the radio,
* the only known method is switching channel which will force to
*/
IWL_DEBUG_INFO(priv, "perform radio reset.\n");
iwl_internal_short_hw_scan(priv);
-}
-
-
-int iwl_force_reset(struct iwl_priv *priv, int mode, bool external)
-{
- struct iwl_force_reset *force_reset;
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return -EINVAL;
-
- if (mode >= IWL_MAX_FORCE_RESET) {
- IWL_DEBUG_INFO(priv, "invalid reset request.\n");
- return -EINVAL;
- }
- force_reset = &priv->force_reset[mode];
- force_reset->reset_request_count++;
- if (!external) {
- if (force_reset->last_force_reset_jiffies &&
- time_after(force_reset->last_force_reset_jiffies +
- force_reset->reset_duration, jiffies)) {
- IWL_DEBUG_INFO(priv, "force reset rejected\n");
- force_reset->reset_reject_count++;
- return -EAGAIN;
- }
- }
- force_reset->reset_success_count++;
- force_reset->last_force_reset_jiffies = jiffies;
- IWL_DEBUG_INFO(priv, "perform force reset (%d)\n", mode);
- switch (mode) {
- case IWL_RF_RESET:
- iwl_force_rf_reset(priv);
- break;
- case IWL_FW_RESET:
- /*
- * if the request is from external(ex: debugfs),
- * then always perform the request in regardless the module
- * parameter setting
- * if the request is from internal (uCode error or driver
- * detect failure), then fw_restart module parameter
- * need to be check before performing firmware reload
- */
- if (!external && !iwlagn_mod_params.restart_fw) {
- IWL_DEBUG_INFO(priv, "Cancel firmware reload based on "
- "module parameter setting\n");
- break;
- }
- IWL_ERR(priv, "On demand firmware reload\n");
- iwlagn_fw_error(priv, true);
- break;
- }
return 0;
}
void iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms);
void iwl_force_scan_end(struct iwl_priv *priv);
void iwl_internal_short_hw_scan(struct iwl_priv *priv);
-int iwl_force_reset(struct iwl_priv *priv, int mode, bool external);
void iwl_setup_rx_scan_handlers(struct iwl_priv *priv);
void iwl_setup_scan_deferred_work(struct iwl_priv *priv);
void iwl_cancel_scan_deferred_work(struct iwl_priv *priv);
return count;
}
-static ssize_t iwl_dbgfs_force_reset_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos)
+static ssize_t iwl_dbgfs_rf_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;
+ int pos = 0;
char buf[300];
const size_t bufsz = sizeof(buf);
- struct iwl_force_reset *force_reset;
+ struct iwl_rf_reset *rf_reset = &priv->rf_reset;
+
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "RF reset statistics\n");
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "\tnumber of reset request: %d\n",
+ rf_reset->reset_request_count);
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "\tnumber of reset request success: %d\n",
+ rf_reset->reset_success_count);
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "\tnumber of reset request reject: %d\n",
+ rf_reset->reset_reject_count);
- 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_rf_reset_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos) {
struct iwl_priv *priv = file->private_data;
- char buf[8];
- int buf_size;
- int reset, ret;
+ int ret;
- 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, "%d", &reset) != 1)
- return -EINVAL;
- switch (reset) {
- case IWL_RF_RESET:
- case IWL_FW_RESET:
- ret = iwl_force_reset(priv, reset, true);
- break;
- default:
- return -EINVAL;
- }
+ ret = iwl_force_rf_reset(priv, true);
return ret ? ret : count;
}
DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
-DEBUGFS_READ_WRITE_FILE_OPS(force_reset);
+DEBUGFS_READ_WRITE_FILE_OPS(rf_reset);
DEBUGFS_READ_FILE_OPS(rxon_flags);
DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
DEBUGFS_WRITE_FILE_OPS(txfifo_flush);
DEBUGFS_ADD_FILE(clear_traffic_statistics, dir_debug, S_IWUSR);
DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR);
DEBUGFS_ADD_FILE(plcp_delta, dir_debug, S_IWUSR | S_IRUSR);
- DEBUGFS_ADD_FILE(force_reset, dir_debug, S_IWUSR | S_IRUSR);
+ DEBUGFS_ADD_FILE(rf_reset, dir_debug, S_IWUSR | 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_general_stats, dir_debug, S_IRUSR);
#define IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE (0)
#define IWL_DELAY_NEXT_FORCE_RF_RESET (HZ*3)
-#define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
/* TX queue watchdog timeouts in mSecs */
#define IWL_WATCHHDOG_DISABLED (0)
#define IWL_MAX_CONTINUE_RELOAD_CNT 4
-enum iwl_reset {
- IWL_RF_RESET = 0,
- IWL_FW_RESET,
- IWL_MAX_FORCE_RESET,
-};
-
-struct iwl_force_reset {
+struct iwl_rf_reset {
int reset_request_count;
int reset_success_count;
int reset_reject_count;
- unsigned long reset_duration;
- unsigned long last_force_reset_jiffies;
+ unsigned long last_reset_jiffies;
};
/* extend beacon time format bit shifting */
/*counters */
u32 rx_handlers_stats[REPLY_MAX];
- /* force reset */
- struct iwl_force_reset force_reset[IWL_MAX_FORCE_RESET];
+ /* rf reset */
+ struct iwl_rf_reset rf_reset;
/* firmware reload counter and timestamp */
unsigned long reload_jiffies;
return ret;
}
+static ssize_t iwl_dbgfs_fw_restart_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct iwl_trans *trans = file->private_data;
+
+ if (!trans->op_mode)
+ return -EAGAIN;
+
+ iwl_op_mode_nic_error(trans->op_mode);
+
+ return count;
+}
+
DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
DEBUGFS_READ_FILE_OPS(fh_reg);
DEBUGFS_READ_FILE_OPS(rx_queue);
DEBUGFS_READ_FILE_OPS(tx_queue);
DEBUGFS_WRITE_FILE_OPS(csr);
+DEBUGFS_WRITE_FILE_OPS(fw_restart);
/*
* Create the debugfs files and directories
DEBUGFS_ADD_FILE(interrupt, dir, S_IWUSR | S_IRUSR);
DEBUGFS_ADD_FILE(csr, dir, S_IWUSR);
DEBUGFS_ADD_FILE(fh_reg, dir, S_IRUSR);
+ DEBUGFS_ADD_FILE(fw_restart, dir, S_IWUSR);
return 0;
}
#else
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