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iwlwifi: move plcp check to separated function

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Move the plcp error checking into stand alone function and pointed by ops
to accommodate devices not needing this recovery.

Signed-off-by: Trieu 'Andrew' Nguyen <trieux.t.nguyen@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
This commit is contained in:
Wey-Yi Guy 2010-03-04 13:38:58 -08:00 committed by Reinette Chatre
parent b74e31a9bc
commit beac5498b7
6 changed files with 47 additions and 22 deletions
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1
drivers/net/wireless/iwlwifi/iwl-1000.c
View File

@ -213,6 +213,7 @@ static struct iwl_lib_ops iwl1000_lib = {
},
.add_bcast_station = iwl_add_bcast_station,
.recover_from_tx_stall = iwl_bg_monitor_recover,
.recover_from_statistics = iwl_recover_from_statistics,
};
static const struct iwl_ops iwl1000_ops = {

1
drivers/net/wireless/iwlwifi/iwl-4965.c
View File

@ -2221,6 +2221,7 @@ static struct iwl_lib_ops iwl4965_lib = {
.set_ct_kill = iwl4965_set_ct_threshold,
},
.add_bcast_station = iwl_add_bcast_station,
.recover_from_statistics = iwl_recover_from_statistics,
};
static const struct iwl_ops iwl4965_ops = {

2
drivers/net/wireless/iwlwifi/iwl-5000.c
View File

@ -1500,6 +1500,7 @@ struct iwl_lib_ops iwl5000_lib = {
},
.add_bcast_station = iwl_add_bcast_station,
.recover_from_tx_stall = iwl_bg_monitor_recover,
.recover_from_statistics = iwl_recover_from_statistics,
};
static struct iwl_lib_ops iwl5150_lib = {
@ -1555,6 +1556,7 @@ static struct iwl_lib_ops iwl5150_lib = {
},
.add_bcast_station = iwl_add_bcast_station,
.recover_from_tx_stall = iwl_bg_monitor_recover,
.recover_from_statistics = iwl_recover_from_statistics,
};
static const struct iwl_ops iwl5000_ops = {

2
drivers/net/wireless/iwlwifi/iwl-6000.c
View File

@ -279,6 +279,7 @@ static struct iwl_lib_ops iwl6000_lib = {
},
.add_bcast_station = iwl_add_bcast_station,
.recover_from_tx_stall = iwl_bg_monitor_recover,
.recover_from_statistics = iwl_recover_from_statistics,
};
static const struct iwl_ops iwl6000_ops = {
@ -345,6 +346,7 @@ static struct iwl_lib_ops iwl6050_lib = {
},
.add_bcast_station = iwl_add_bcast_station,
.recover_from_tx_stall = iwl_bg_monitor_recover,
.recover_from_statistics = iwl_recover_from_statistics,
};
static const struct iwl_ops iwl6050_ops = {

5
drivers/net/wireless/iwlwifi/iwl-core.h
View File

@ -193,6 +193,9 @@ struct iwl_lib_ops {
void (*add_bcast_station)(struct iwl_priv *priv);
/* recover from tx queue stall */
void (*recover_from_tx_stall)(unsigned long data);
/* recover from errors showed in statistics */
void (*recover_from_statistics)(struct iwl_priv *priv,
struct iwl_rx_packet *pkt);
};
struct iwl_led_ops {
@ -434,6 +437,8 @@ void iwl_rx_missed_beacon_notif(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb);
void iwl_rx_spectrum_measure_notif(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb);
void iwl_recover_from_statistics(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,

58
drivers/net/wireless/iwlwifi/iwl-rx.c
View File

@ -617,28 +617,18 @@ static void iwl_accumulative_statistics(struct iwl_priv *priv,
#define REG_RECALIB_PERIOD (60)
#define PLCP_MSG "plcp_err exceeded %u, %u, %u, %u, %u, %d, %u mSecs\n"
void iwl_rx_statistics(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb)
/*
* This function checks for plcp error.
* - When the plcp error is exceeding the thresholds, it will reset the radio
* to improve the throughput.
*/
void iwl_recover_from_statistics(struct iwl_priv *priv,
struct iwl_rx_packet *pkt)
{
int change;
struct iwl_rx_packet *pkt = rxb_addr(rxb);
int combined_plcp_delta;
unsigned int plcp_msec;
unsigned long plcp_received_jiffies;
IWL_DEBUG_RX(priv, "Statistics notification received (%d vs %d).\n",
(int)sizeof(priv->statistics),
le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK);
change = ((priv->statistics.general.temperature !=
pkt->u.stats.general.temperature) ||
((priv->statistics.flag &
STATISTICS_REPLY_FLG_HT40_MODE_MSK) !=
(pkt->u.stats.flag & STATISTICS_REPLY_FLG_HT40_MODE_MSK)));
#ifdef CONFIG_IWLWIFI_DEBUG
iwl_accumulative_statistics(priv, (__le32 *)&pkt->u.stats);
#endif
/*
* check for plcp_err and trigger radio reset if it exceeds
* the plcp error threshold plcp_delta.
@ -659,11 +649,11 @@ void iwl_rx_statistics(struct iwl_priv *priv,
le32_to_cpu(priv->statistics.rx.ofdm_ht.plcp_err));
if ((combined_plcp_delta > 0) &&
((combined_plcp_delta * 100) / plcp_msec) >
((combined_plcp_delta * 100) / plcp_msec) >
priv->cfg->plcp_delta_threshold) {
/*
* if plcp_err exceed the threshold, the following
* data is printed in csv format:
* 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,
@ -678,9 +668,8 @@ void iwl_rx_statistics(struct iwl_priv *priv,
le32_to_cpu(priv->statistics.rx.ofdm.plcp_err),
le32_to_cpu(pkt->u.stats.rx.ofdm_ht.plcp_err),
le32_to_cpu(
priv->statistics.rx.ofdm_ht.plcp_err),
priv->statistics.rx.ofdm_ht.plcp_err),
combined_plcp_delta, plcp_msec);
/*
* Reset the RF radio due to the high plcp
* error rate
@ -688,6 +677,31 @@ void iwl_rx_statistics(struct iwl_priv *priv,
iwl_force_reset(priv, IWL_RF_RESET);
}
}
}
EXPORT_SYMBOL(iwl_recover_from_statistics);
void iwl_rx_statistics(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb)
{
int change;
struct iwl_rx_packet *pkt = rxb_addr(rxb);
IWL_DEBUG_RX(priv, "Statistics notification received (%d vs %d).\n",
(int)sizeof(priv->statistics),
le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK);
change = ((priv->statistics.general.temperature !=
pkt->u.stats.general.temperature) ||
((priv->statistics.flag &
STATISTICS_REPLY_FLG_HT40_MODE_MSK) !=
(pkt->u.stats.flag & STATISTICS_REPLY_FLG_HT40_MODE_MSK)));
#ifdef CONFIG_IWLWIFI_DEBUG
iwl_accumulative_statistics(priv, (__le32 *)&pkt->u.stats);
#endif
if (priv->cfg->ops->lib->recover_from_statistics)
priv->cfg->ops->lib->recover_from_statistics(priv, pkt);
memcpy(&priv->statistics, &pkt->u.stats, sizeof(priv->statistics));