diff options
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-agn.c | 6 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-core.c | 25 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-dev.h | 14 |
3 files changed, 33 insertions, 12 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index 52b6beb371fe..c5b724eaf306 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -3378,6 +3378,12 @@ static int iwl_init_drv(struct iwl_priv *priv) priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF; priv->agg_tids_count = 0; + /* 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; + /* Choose which receivers/antennas to use */ if (priv->cfg->ops->hcmd->set_rxon_chain) priv->cfg->ops->hcmd->set_rxon_chain(priv); diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index bd56827b8fef..55252a692de7 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -3357,22 +3357,30 @@ static void iwl_force_rf_reset(struct iwl_priv *priv) return; } -#define IWL_DELAY_NEXT_FORCE_RESET (HZ*3) int iwl_force_reset(struct iwl_priv *priv, int mode) { + struct iwl_force_reset *force_reset; + if (test_bit(STATUS_EXIT_PENDING, &priv->status)) return -EINVAL; - if (priv->last_force_reset_jiffies && - time_after(priv->last_force_reset_jiffies + - IWL_DELAY_NEXT_FORCE_RESET, jiffies)) { + 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 (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); @@ -3389,12 +3397,7 @@ int iwl_force_reset(struct iwl_priv *priv, int mode) clear_bit(STATUS_READY, &priv->status); queue_work(priv->workqueue, &priv->restart); break; - default: - IWL_DEBUG_INFO(priv, "invalid reset request.\n"); - return -EINVAL; } - priv->last_force_reset_jiffies = jiffies; - return 0; } diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h index 021c68658718..7914d65a5a55 100644 --- a/drivers/net/wireless/iwlwifi/iwl-dev.h +++ b/drivers/net/wireless/iwlwifi/iwl-dev.h @@ -1036,9 +1036,21 @@ struct iwl_event_log { #define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF (200) #define IWL_MAX_PLCP_ERR_THRESHOLD_MAX (255) +#define IWL_DELAY_NEXT_FORCE_RF_RESET (HZ*3) +#define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5) + enum iwl_reset { IWL_RF_RESET = 0, IWL_FW_RESET, + IWL_MAX_FORCE_RESET, +}; + +struct iwl_force_reset { + int reset_request_count; + int reset_success_count; + int reset_reject_count; + unsigned long reset_duration; + unsigned long last_force_reset_jiffies; }; struct iwl_priv { @@ -1076,7 +1088,7 @@ struct iwl_priv { u8 agg_tids_count; /* force reset */ - unsigned long last_force_reset_jiffies; + struct iwl_force_reset force_reset[IWL_MAX_FORCE_RESET]; /* we allocate array of iwl4965_channel_info for NIC's valid channels. * Access via channel # using indirect index array */ |