From 91835ba401189a81e5ad1f932f880d8eed8c9db2 Mon Sep 17 00:00:00 2001 From: Wey-Yi Guy Date: Sun, 5 Sep 2010 10:49:41 -0700 Subject: 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 --- drivers/net/wireless/iwlwifi/iwl-agn-lib.c | 79 ++++++++++++++++++++++++++++++ drivers/net/wireless/iwlwifi/iwl-dev.h | 29 +++++++++++ 2 files changed, 108 insertions(+) diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c index 12170cf..68a2ab3 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c @@ -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", diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h index 4e3a692..bfa4864 100644 --- a/drivers/net/wireless/iwlwifi/iwl-dev.h +++ b/drivers/net/wireless/iwlwifi/iwl-dev.h @@ -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; -- cgit v1.1