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iwlagn: keep track fail tx reason counter
If uCode fail to transmit frame, it will send reply tx back to driver with failure status; keep the counters of each failure cases for debugging. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
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@ -46,6 +46,83 @@ static inline u32 iwlagn_get_scd_ssn(struct iwl5000_tx_resp *tx_resp)
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tx_resp->frame_count) & MAX_SN;
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}
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static void iwlagn_count_tx_err_status(struct iwl_priv *priv, u16 status)
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{
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status &= TX_STATUS_MSK;
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switch (status) {
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case TX_STATUS_POSTPONE_DELAY:
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priv->_agn.reply_tx_stats.pp_delay++;
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break;
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case TX_STATUS_POSTPONE_FEW_BYTES:
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priv->_agn.reply_tx_stats.pp_few_bytes++;
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break;
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case TX_STATUS_POSTPONE_BT_PRIO:
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priv->_agn.reply_tx_stats.pp_bt_prio++;
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break;
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case TX_STATUS_POSTPONE_QUIET_PERIOD:
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priv->_agn.reply_tx_stats.pp_quiet_period++;
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break;
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case TX_STATUS_POSTPONE_CALC_TTAK:
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priv->_agn.reply_tx_stats.pp_calc_ttak++;
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break;
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case TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY:
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priv->_agn.reply_tx_stats.int_crossed_retry++;
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break;
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case TX_STATUS_FAIL_SHORT_LIMIT:
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priv->_agn.reply_tx_stats.short_limit++;
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break;
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case TX_STATUS_FAIL_LONG_LIMIT:
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priv->_agn.reply_tx_stats.long_limit++;
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break;
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case TX_STATUS_FAIL_FIFO_UNDERRUN:
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priv->_agn.reply_tx_stats.fifo_underrun++;
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break;
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case TX_STATUS_FAIL_DRAIN_FLOW:
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priv->_agn.reply_tx_stats.drain_flow++;
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break;
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case TX_STATUS_FAIL_RFKILL_FLUSH:
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priv->_agn.reply_tx_stats.rfkill_flush++;
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break;
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case TX_STATUS_FAIL_LIFE_EXPIRE:
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priv->_agn.reply_tx_stats.life_expire++;
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break;
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case TX_STATUS_FAIL_DEST_PS:
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priv->_agn.reply_tx_stats.dest_ps++;
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break;
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case TX_STATUS_FAIL_HOST_ABORTED:
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priv->_agn.reply_tx_stats.host_abort++;
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break;
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case TX_STATUS_FAIL_BT_RETRY:
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priv->_agn.reply_tx_stats.bt_retry++;
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break;
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case TX_STATUS_FAIL_STA_INVALID:
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priv->_agn.reply_tx_stats.sta_invalid++;
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break;
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case TX_STATUS_FAIL_FRAG_DROPPED:
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priv->_agn.reply_tx_stats.frag_drop++;
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break;
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case TX_STATUS_FAIL_TID_DISABLE:
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priv->_agn.reply_tx_stats.tid_disable++;
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break;
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case TX_STATUS_FAIL_FIFO_FLUSHED:
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priv->_agn.reply_tx_stats.fifo_flush++;
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break;
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case TX_STATUS_FAIL_INSUFFICIENT_CF_POLL:
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priv->_agn.reply_tx_stats.insuff_cf_poll++;
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break;
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case TX_STATUS_FAIL_FW_DROP:
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priv->_agn.reply_tx_stats.fail_hw_drop++;
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break;
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case TX_STATUS_FAIL_STA_COLOR_MISMATCH_DROP:
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priv->_agn.reply_tx_stats.sta_color_mismatch++;
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break;
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default:
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priv->_agn.reply_tx_stats.unknown++;
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break;
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}
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}
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static void iwlagn_set_tx_status(struct iwl_priv *priv,
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struct ieee80211_tx_info *info,
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struct iwl5000_tx_resp *tx_resp,
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@ -59,6 +136,8 @@ static void iwlagn_set_tx_status(struct iwl_priv *priv,
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info->flags |= iwl_tx_status_to_mac80211(status);
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iwlagn_hwrate_to_tx_control(priv, le32_to_cpu(tx_resp->rate_n_flags),
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info);
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if (!iwl_is_tx_success(status))
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iwlagn_count_tx_err_status(priv, status);
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IWL_DEBUG_TX_REPLY(priv, "TXQ %d status %s (0x%08x) rate_n_flags "
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"0x%x retries %d\n",
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@ -957,6 +957,33 @@ struct isr_statistics {
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u32 unhandled;
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};
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/* reply_tx_statistics (for _agn devices) */
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struct reply_tx_error_statistics {
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u32 pp_delay;
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u32 pp_few_bytes;
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u32 pp_bt_prio;
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u32 pp_quiet_period;
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u32 pp_calc_ttak;
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u32 int_crossed_retry;
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u32 short_limit;
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u32 long_limit;
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u32 fifo_underrun;
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u32 drain_flow;
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u32 rfkill_flush;
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u32 life_expire;
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u32 dest_ps;
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u32 host_abort;
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u32 bt_retry;
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u32 sta_invalid;
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u32 frag_drop;
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u32 tid_disable;
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u32 fifo_flush;
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u32 insuff_cf_poll;
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u32 fail_hw_drop;
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u32 sta_color_mismatch;
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u32 unknown;
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};
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#ifdef CONFIG_IWLWIFI_DEBUGFS
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/* management statistics */
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enum iwl_mgmt_stats {
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@ -1415,6 +1442,8 @@ struct iwl_priv {
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struct iwl_notif_statistics statistics;
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struct iwl_bt_notif_statistics statistics_bt;
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/* counts reply_tx error */
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struct reply_tx_error_statistics reply_tx_stats;
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#ifdef CONFIG_IWLWIFI_DEBUGFS
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struct iwl_notif_statistics accum_statistics;
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struct iwl_notif_statistics delta_statistics;
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