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iwlwifi: remove ack_check module parameter 

This defaults to false, and we don't recommend
to use it anywhere, so just remove it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2012-04-09 17:46:56 -07:00 committed by John W. Linville
parent 9e295116bb
commit 4e80986d6d
3 changed files with 0 additions and 74 deletions
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69
drivers/net/wireless/iwlwifi/iwl-agn-rx.c
View File

@ -246,69 +246,6 @@ static int iwlagn_rx_beacon_notif(struct iwl_priv *priv,
return 0;
}
/* the threshold ratio of actual_ack_cnt to expected_ack_cnt in percent */
#define ACK_CNT_RATIO (50)
#define BA_TIMEOUT_CNT (5)
#define BA_TIMEOUT_MAX (16)
/**
* iwl_good_ack_health - checks for ACK count ratios, BA timeout retries.
*
* When the ACK count ratio is low and aggregated BA timeout retries exceeding
* the BA_TIMEOUT_MAX, reload firmware and bring system back to normal
* operation state.
*/
static bool iwlagn_good_ack_health(struct iwl_priv *priv,
struct statistics_tx *cur)
{
int actual_delta, expected_delta, ba_timeout_delta;
struct statistics_tx *old;
if (priv->agg_tids_count)
return true;
lockdep_assert_held(&priv->statistics.lock);
old = &priv->statistics.tx;
actual_delta = le32_to_cpu(cur->actual_ack_cnt) -
le32_to_cpu(old->actual_ack_cnt);
expected_delta = le32_to_cpu(cur->expected_ack_cnt) -
le32_to_cpu(old->expected_ack_cnt);
/* Values should not be negative, but we do not trust the firmware */
if (actual_delta <= 0 || expected_delta <= 0)
return true;
ba_timeout_delta = le32_to_cpu(cur->agg.ba_timeout) -
le32_to_cpu(old->agg.ba_timeout);
if ((actual_delta * 100 / expected_delta) < ACK_CNT_RATIO &&
ba_timeout_delta > BA_TIMEOUT_CNT) {
IWL_DEBUG_RADIO(priv,
"deltas: actual %d expected %d ba_timeout %d\n",
actual_delta, expected_delta, ba_timeout_delta);
#ifdef CONFIG_IWLWIFI_DEBUGFS
/*
* This is ifdef'ed on DEBUGFS because otherwise the
* statistics aren't available. If DEBUGFS is set but
* DEBUG is not, these will just compile out.
*/
IWL_DEBUG_RADIO(priv, "rx_detected_cnt delta %d\n",
priv->delta_stats.tx.rx_detected_cnt);
IWL_DEBUG_RADIO(priv,
"ack_or_ba_timeout_collision delta %d\n",
priv->delta_stats.tx.ack_or_ba_timeout_collision);
#endif
if (ba_timeout_delta >= BA_TIMEOUT_MAX)
return false;
}
return true;
}
/**
* iwl_good_plcp_health - checks for plcp error.
*
@ -368,12 +305,6 @@ static void iwlagn_recover_from_statistics(struct iwl_priv *priv,
if (msecs < 99)
return;
if (iwlagn_mod_params.ack_check && !iwlagn_good_ack_health(priv, tx)) {
IWL_ERR(priv, "low ack count detected, restart firmware\n");
if (!iwl_force_reset(priv, IWL_FW_RESET, false))
return;
}
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);

3
drivers/net/wireless/iwlwifi/iwl-agn.c
View File

@ -2281,9 +2281,6 @@ MODULE_PARM_DESC(bt_ch_inhibition,
module_param_named(plcp_check, iwlagn_mod_params.plcp_check, bool, S_IRUGO);
MODULE_PARM_DESC(plcp_check, "Check plcp health (default: 1 [enabled])");
module_param_named(ack_check, iwlagn_mod_params.ack_check, bool, S_IRUGO);
MODULE_PARM_DESC(ack_check, "Check ack health (default: 0 [disabled])");
module_param_named(wd_disable, iwlagn_mod_params.wd_disable, int, S_IRUGO);
MODULE_PARM_DESC(wd_disable,
"Disable stuck queue watchdog timer 0=system default, "

2
drivers/net/wireless/iwlwifi/iwl-shared.h
View File

@ -121,7 +121,6 @@ extern struct iwl_mod_params iwlagn_mod_params;
* @antenna: both antennas (use diversity), default = 0
* @restart_fw: restart firmware, default = 1
* @plcp_check: enable plcp health check, default = true
* @ack_check: disable ack health check, default = false
* @wd_disable: enable stuck queue check, default = 0
* @bt_coex_active: enable bt coex, default = true
* @led_mode: system default, default = 0
@ -141,7 +140,6 @@ struct iwl_mod_params {
int antenna;
int restart_fw;
bool plcp_check;
bool ack_check;
int wd_disable;
bool bt_coex_active;
int led_mode;