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Commit 91835ba4 authored by Wey-Yi Guy's avatar Wey-Yi Guy
Browse files

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: default avatarWey-Yi Guy <wey-yi.w.guy@intel.com>
parent a437fbb9

drivers/net/wireless/iwlwifi/iwl-agn-lib.c

+79 −0
Original line number Diff line number Diff line
@@ -46,6 +46,83 @@ static inline u32 iwlagn_get_scd_ssn(struct iwl5000_tx_resp *tx_resp) 
			    tx_resp->frame_count) & MAX_SN;

}



static void iwlagn_count_tx_err_status(struct iwl_priv *priv, u16 status)

{

	status &= TX_STATUS_MSK;



	switch (status) {

	case TX_STATUS_POSTPONE_DELAY:

		priv->_agn.reply_tx_stats.pp_delay++;

		break;

	case TX_STATUS_POSTPONE_FEW_BYTES:

		priv->_agn.reply_tx_stats.pp_few_bytes++;

		break;

	case TX_STATUS_POSTPONE_BT_PRIO:

		priv->_agn.reply_tx_stats.pp_bt_prio++;

		break;

	case TX_STATUS_POSTPONE_QUIET_PERIOD:

		priv->_agn.reply_tx_stats.pp_quiet_period++;

		break;

	case TX_STATUS_POSTPONE_CALC_TTAK:

		priv->_agn.reply_tx_stats.pp_calc_ttak++;

		break;

	case TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY:

		priv->_agn.reply_tx_stats.int_crossed_retry++;

		break;

	case TX_STATUS_FAIL_SHORT_LIMIT:

		priv->_agn.reply_tx_stats.short_limit++;

		break;

	case TX_STATUS_FAIL_LONG_LIMIT:

		priv->_agn.reply_tx_stats.long_limit++;

		break;

	case TX_STATUS_FAIL_FIFO_UNDERRUN:

		priv->_agn.reply_tx_stats.fifo_underrun++;

		break;

	case TX_STATUS_FAIL_DRAIN_FLOW:

		priv->_agn.reply_tx_stats.drain_flow++;

		break;

	case TX_STATUS_FAIL_RFKILL_FLUSH:

		priv->_agn.reply_tx_stats.rfkill_flush++;

		break;

	case TX_STATUS_FAIL_LIFE_EXPIRE:

		priv->_agn.reply_tx_stats.life_expire++;

		break;

	case TX_STATUS_FAIL_DEST_PS:

		priv->_agn.reply_tx_stats.dest_ps++;

		break;

	case TX_STATUS_FAIL_HOST_ABORTED:

		priv->_agn.reply_tx_stats.host_abort++;

		break;

	case TX_STATUS_FAIL_BT_RETRY:

		priv->_agn.reply_tx_stats.bt_retry++;

		break;

	case TX_STATUS_FAIL_STA_INVALID:

		priv->_agn.reply_tx_stats.sta_invalid++;

		break;

	case TX_STATUS_FAIL_FRAG_DROPPED:

		priv->_agn.reply_tx_stats.frag_drop++;

		break;

	case TX_STATUS_FAIL_TID_DISABLE:

		priv->_agn.reply_tx_stats.tid_disable++;

		break;

	case TX_STATUS_FAIL_FIFO_FLUSHED:

		priv->_agn.reply_tx_stats.fifo_flush++;

		break;

	case TX_STATUS_FAIL_INSUFFICIENT_CF_POLL:

		priv->_agn.reply_tx_stats.insuff_cf_poll++;

		break;

	case TX_STATUS_FAIL_FW_DROP:

		priv->_agn.reply_tx_stats.fail_hw_drop++;

		break;

	case TX_STATUS_FAIL_STA_COLOR_MISMATCH_DROP:

		priv->_agn.reply_tx_stats.sta_color_mismatch++;

		break;

	default:

		priv->_agn.reply_tx_stats.unknown++;

		break;

	}

}



static void iwlagn_set_tx_status(struct iwl_priv *priv,

				 struct ieee80211_tx_info *info,

				 struct iwl5000_tx_resp *tx_resp,
@@ -59,6 +136,8 @@ static void iwlagn_set_tx_status(struct iwl_priv *priv, 
	info->flags |= iwl_tx_status_to_mac80211(status);

	iwlagn_hwrate_to_tx_control(priv, le32_to_cpu(tx_resp->rate_n_flags),

				    info);

	if (!iwl_is_tx_success(status))

		iwlagn_count_tx_err_status(priv, status);



	IWL_DEBUG_TX_REPLY(priv, "TXQ %d status %s (0x%08x) rate_n_flags "

			   "0x%x retries %d\n",

drivers/net/wireless/iwlwifi/iwl-dev.h

+29 −0
Original line number Diff line number Diff line
@@ -957,6 +957,33 @@ struct isr_statistics { 
	u32 unhandled;

};



/* reply_tx_statistics (for _agn devices) */

struct reply_tx_error_statistics {

	u32 pp_delay;

	u32 pp_few_bytes;

	u32 pp_bt_prio;

	u32 pp_quiet_period;

	u32 pp_calc_ttak;

	u32 int_crossed_retry;

	u32 short_limit;

	u32 long_limit;

	u32 fifo_underrun;

	u32 drain_flow;

	u32 rfkill_flush;

	u32 life_expire;

	u32 dest_ps;

	u32 host_abort;

	u32 bt_retry;

	u32 sta_invalid;

	u32 frag_drop;

	u32 tid_disable;

	u32 fifo_flush;

	u32 insuff_cf_poll;

	u32 fail_hw_drop;

	u32 sta_color_mismatch;

	u32 unknown;

};



#ifdef CONFIG_IWLWIFI_DEBUGFS

/* management statistics */

enum iwl_mgmt_stats {
@@ -1415,6 +1442,8 @@ struct iwl_priv { 


			struct iwl_notif_statistics statistics;

			struct iwl_bt_notif_statistics statistics_bt;

			/* counts reply_tx error */

			struct reply_tx_error_statistics reply_tx_stats;

#ifdef CONFIG_IWLWIFI_DEBUGFS

			struct iwl_notif_statistics accum_statistics;

			struct iwl_notif_statistics delta_statistics;