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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>
This commit is contained in:
Wey-Yi Guy 2010-09-05 10:49:41 -07:00
parent a437fbb96f
commit 91835ba401
2 changed files with 108 additions and 0 deletions
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79
drivers/net/wireless/iwlwifi/iwl-agn-lib.c
View File

@ -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",

29
drivers/net/wireless/iwlwifi/iwl-dev.h
View File

@ -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;