.bt_stats_read = iwl_ucode_bt_stats_read,
.reply_tx_error = iwl_reply_tx_error_read,
},
- .check_plcp_health = iwl_good_plcp_health,
- .check_ack_health = iwl_good_ack_health,
.txfifo_flush = iwlagn_txfifo_flush,
.dev_txfifo_flush = iwlagn_dev_txfifo_flush,
.tt_ops = {
.bt_stats_read = iwl_ucode_bt_stats_read,
.reply_tx_error = iwl_reply_tx_error_read,
},
- .check_plcp_health = iwl_good_plcp_health,
- .check_ack_health = iwl_good_ack_health,
.txfifo_flush = iwlagn_txfifo_flush,
.dev_txfifo_flush = iwlagn_dev_txfifo_flush,
.tt_ops = {
.bt_stats_read = iwl_ucode_bt_stats_read,
.reply_tx_error = iwl_reply_tx_error_read,
},
- .check_plcp_health = iwl_good_plcp_health,
- .check_ack_health = iwl_good_ack_health,
.txfifo_flush = iwlagn_txfifo_flush,
.dev_txfifo_flush = iwlagn_dev_txfifo_flush,
.tt_ops = {
.bt_stats_read = iwl_ucode_bt_stats_read,
.reply_tx_error = iwl_reply_tx_error_read,
},
- .check_plcp_health = iwl_good_plcp_health,
- .check_ack_health = iwl_good_ack_health,
.txfifo_flush = iwlagn_txfifo_flush,
.dev_txfifo_flush = iwlagn_dev_txfifo_flush,
.tt_ops = {
.bt_stats_read = iwl_ucode_bt_stats_read,
.reply_tx_error = iwl_reply_tx_error_read,
},
- .check_plcp_health = iwl_good_plcp_health,
- .check_ack_health = iwl_good_ack_health,
.txfifo_flush = iwlagn_txfifo_flush,
.dev_txfifo_flush = iwlagn_dev_txfifo_flush,
.tt_ops = {
.bt_stats_read = iwl_ucode_bt_stats_read,
.reply_tx_error = iwl_reply_tx_error_read,
},
- .check_plcp_health = iwl_good_plcp_health,
- .check_ack_health = iwl_good_ack_health,
.txfifo_flush = iwlagn_txfifo_flush,
.dev_txfifo_flush = iwlagn_dev_txfifo_flush,
.tt_ops = {
#define REG_RECALIB_PERIOD (60)
-/**
- * iwl_good_plcp_health - checks for plcp error.
- *
- * When the plcp error is exceeding the thresholds, reset the radio
- * to improve the throughput.
- */
-bool iwl_good_plcp_health(struct iwl_priv *priv,
- struct iwl_rx_packet *pkt)
-{
- bool rc = true;
- int combined_plcp_delta;
- unsigned int plcp_msec;
- unsigned long plcp_received_jiffies;
-
- if (priv->cfg->base_params->plcp_delta_threshold ==
- IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE) {
- IWL_DEBUG_RADIO(priv, "plcp_err check disabled\n");
- return rc;
- }
-
- /*
- * check for plcp_err and trigger radio reset if it exceeds
- * the plcp error threshold plcp_delta.
- */
- plcp_received_jiffies = jiffies;
- plcp_msec = jiffies_to_msecs((long) plcp_received_jiffies -
- (long) priv->plcp_jiffies);
- priv->plcp_jiffies = plcp_received_jiffies;
- /*
- * check to make sure plcp_msec is not 0 to prevent division
- * by zero.
- */
- if (plcp_msec) {
- struct statistics_rx_phy *ofdm;
- struct statistics_rx_ht_phy *ofdm_ht;
-
- if (iwl_bt_statistics(priv)) {
- ofdm = &pkt->u.stats_bt.rx.ofdm;
- ofdm_ht = &pkt->u.stats_bt.rx.ofdm_ht;
- combined_plcp_delta =
- (le32_to_cpu(ofdm->plcp_err) -
- le32_to_cpu(priv->_agn.statistics_bt.
- rx.ofdm.plcp_err)) +
- (le32_to_cpu(ofdm_ht->plcp_err) -
- le32_to_cpu(priv->_agn.statistics_bt.
- rx.ofdm_ht.plcp_err));
- } else {
- ofdm = &pkt->u.stats.rx.ofdm;
- ofdm_ht = &pkt->u.stats.rx.ofdm_ht;
- combined_plcp_delta =
- (le32_to_cpu(ofdm->plcp_err) -
- le32_to_cpu(priv->_agn.statistics.
- rx.ofdm.plcp_err)) +
- (le32_to_cpu(ofdm_ht->plcp_err) -
- le32_to_cpu(priv->_agn.statistics.
- rx.ofdm_ht.plcp_err));
- }
-
- if ((combined_plcp_delta > 0) &&
- ((combined_plcp_delta * 100) / plcp_msec) >
- priv->cfg->base_params->plcp_delta_threshold) {
- /*
- * if plcp_err exceed the threshold,
- * the following data is printed in csv format:
- * Text: plcp_err exceeded %d,
- * Received ofdm.plcp_err,
- * Current ofdm.plcp_err,
- * Received ofdm_ht.plcp_err,
- * Current ofdm_ht.plcp_err,
- * combined_plcp_delta,
- * plcp_msec
- */
- IWL_DEBUG_RADIO(priv, "plcp_err exceeded %u, "
- "%u, %u, %u, %u, %d, %u mSecs\n",
- priv->cfg->base_params->plcp_delta_threshold,
- le32_to_cpu(ofdm->plcp_err),
- le32_to_cpu(ofdm->plcp_err),
- le32_to_cpu(ofdm_ht->plcp_err),
- le32_to_cpu(ofdm_ht->plcp_err),
- combined_plcp_delta, plcp_msec);
-
- rc = false;
- }
- }
- return rc;
-}
-
void iwl_rx_statistics(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb)
{
iwl_enable_rfkill_int(priv);
}
-/* 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.
- */
-bool iwl_good_ack_health(struct iwl_priv *priv, struct iwl_rx_packet *pkt)
-{
- int actual_delta, expected_delta, ba_timeout_delta;
- struct statistics_tx *cur, *old;
-
- if (priv->_agn.agg_tids_count)
- return true;
-
- if (iwl_bt_statistics(priv)) {
- cur = &pkt->u.stats_bt.tx;
- old = &priv->_agn.statistics_bt.tx;
- } else {
- cur = &pkt->u.stats.tx;
- old = &priv->_agn.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->_agn.delta_statistics.tx.rx_detected_cnt);
- IWL_DEBUG_RADIO(priv,
- "ack_or_ba_timeout_collision delta %d\n",
- priv->_agn.delta_statistics.tx.ack_or_ba_timeout_collision);
-#endif
-
- if (ba_timeout_delta >= BA_TIMEOUT_MAX)
- return false;
- }
-
- return true;
-}
-
-
/*****************************************************************************
*
* sysfs attributes
int iwl_alloc_isr_ict(struct iwl_priv *priv);
void iwl_free_isr_ict(struct iwl_priv *priv);
irqreturn_t iwl_isr_ict(int irq, void *data);
-bool iwl_good_ack_health(struct iwl_priv *priv,
- struct iwl_rx_packet *pkt);
/* tx queue */
void iwlagn_set_wr_ptrs(struct iwl_priv *priv,
/* rx */
void iwl_rx_missed_beacon_notif(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb);
-bool iwl_good_plcp_health(struct iwl_priv *priv,
- struct iwl_rx_packet *pkt);
void iwl_rx_statistics(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb);
void iwl_reply_statistics(struct iwl_priv *priv,
/* temperature */
struct iwl_temp_ops temp_ops;
- /* check for plcp health */
- bool (*check_plcp_health)(struct iwl_priv *priv,
- struct iwl_rx_packet *pkt);
- /* check for ack health */
- bool (*check_ack_health)(struct iwl_priv *priv,
- struct iwl_rx_packet *pkt);
+
int (*txfifo_flush)(struct iwl_priv *priv, u16 flush_control);
void (*dev_txfifo_flush)(struct iwl_priv *priv, u16 flush_control);
priv->measurement_status |= MEASUREMENT_READY;
}
-void iwl_recover_from_statistics(struct iwl_priv *priv,
- struct iwl_rx_packet *pkt)
+/* 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 iwl_good_ack_health(struct iwl_priv *priv, struct iwl_rx_packet *pkt)
+{
+ int actual_delta, expected_delta, ba_timeout_delta;
+ struct statistics_tx *cur, *old;
+
+ if (priv->_agn.agg_tids_count)
+ return true;
+
+ if (iwl_bt_statistics(priv)) {
+ cur = &pkt->u.stats_bt.tx;
+ old = &priv->_agn.statistics_bt.tx;
+ } else {
+ cur = &pkt->u.stats.tx;
+ old = &priv->_agn.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->_agn.delta_statistics.tx.rx_detected_cnt);
+ IWL_DEBUG_RADIO(priv,
+ "ack_or_ba_timeout_collision delta %d\n",
+ priv->_agn.delta_statistics.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.
+ *
+ * When the plcp error is exceeding the thresholds, reset the radio
+ * to improve the throughput.
+ */
+static bool iwl_good_plcp_health(struct iwl_priv *priv, struct iwl_rx_packet *pkt)
+{
+ bool rc = true;
+ int combined_plcp_delta;
+ unsigned int plcp_msec;
+ unsigned long plcp_received_jiffies;
+
+ if (priv->cfg->base_params->plcp_delta_threshold ==
+ IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE) {
+ IWL_DEBUG_RADIO(priv, "plcp_err check disabled\n");
+ return rc;
+ }
+
+ /*
+ * check for plcp_err and trigger radio reset if it exceeds
+ * the plcp error threshold plcp_delta.
+ */
+ plcp_received_jiffies = jiffies;
+ plcp_msec = jiffies_to_msecs((long) plcp_received_jiffies -
+ (long) priv->plcp_jiffies);
+ priv->plcp_jiffies = plcp_received_jiffies;
+ /*
+ * check to make sure plcp_msec is not 0 to prevent division
+ * by zero.
+ */
+ if (plcp_msec) {
+ struct statistics_rx_phy *ofdm;
+ struct statistics_rx_ht_phy *ofdm_ht;
+
+ if (iwl_bt_statistics(priv)) {
+ ofdm = &pkt->u.stats_bt.rx.ofdm;
+ ofdm_ht = &pkt->u.stats_bt.rx.ofdm_ht;
+ combined_plcp_delta =
+ (le32_to_cpu(ofdm->plcp_err) -
+ le32_to_cpu(priv->_agn.statistics_bt.
+ rx.ofdm.plcp_err)) +
+ (le32_to_cpu(ofdm_ht->plcp_err) -
+ le32_to_cpu(priv->_agn.statistics_bt.
+ rx.ofdm_ht.plcp_err));
+ } else {
+ ofdm = &pkt->u.stats.rx.ofdm;
+ ofdm_ht = &pkt->u.stats.rx.ofdm_ht;
+ combined_plcp_delta =
+ (le32_to_cpu(ofdm->plcp_err) -
+ le32_to_cpu(priv->_agn.statistics.
+ rx.ofdm.plcp_err)) +
+ (le32_to_cpu(ofdm_ht->plcp_err) -
+ le32_to_cpu(priv->_agn.statistics.
+ rx.ofdm_ht.plcp_err));
+ }
+
+ if ((combined_plcp_delta > 0) &&
+ ((combined_plcp_delta * 100) / plcp_msec) >
+ priv->cfg->base_params->plcp_delta_threshold) {
+ /*
+ * if plcp_err exceed the threshold,
+ * the following data is printed in csv format:
+ * Text: plcp_err exceeded %d,
+ * Received ofdm.plcp_err,
+ * Current ofdm.plcp_err,
+ * Received ofdm_ht.plcp_err,
+ * Current ofdm_ht.plcp_err,
+ * combined_plcp_delta,
+ * plcp_msec
+ */
+ IWL_DEBUG_RADIO(priv, "plcp_err exceeded %u, "
+ "%u, %u, %u, %u, %d, %u mSecs\n",
+ priv->cfg->base_params->plcp_delta_threshold,
+ le32_to_cpu(ofdm->plcp_err),
+ le32_to_cpu(ofdm->plcp_err),
+ le32_to_cpu(ofdm_ht->plcp_err),
+ le32_to_cpu(ofdm_ht->plcp_err),
+ combined_plcp_delta, plcp_msec);
+
+ rc = false;
+ }
+ }
+ return rc;
+}
+
+void iwl_recover_from_statistics(struct iwl_priv *priv, struct iwl_rx_packet *pkt)
{
const struct iwl_mod_params *mod_params = priv->cfg->mod_params;
!iwl_is_any_associated(priv))
return;
- if (mod_params->ack_check &&
- priv->cfg->ops->lib->check_ack_health &&
- !priv->cfg->ops->lib->check_ack_health(priv, pkt)) {
+ if (mod_params->ack_check && !iwl_good_ack_health(priv, pkt)) {
IWL_ERR(priv, "low ack count detected, restart firmware\n");
if (!iwl_force_reset(priv, IWL_FW_RESET, false))
return;
}
- if (mod_params->plcp_check &&
- priv->cfg->ops->lib->check_plcp_health &&
- !priv->cfg->ops->lib->check_plcp_health(priv, pkt))
+ if (mod_params->plcp_check && !iwl_good_plcp_health(priv, pkt))
iwl_force_reset(priv, IWL_RF_RESET, false);
}
git.openpandora.org / pandora-kernel.git / commitdiff