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Merge branch 'wireless-next-2.6' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-2.6

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This commit is contained in:
John W. Linville 2010-03-23 16:46:43 -04:00
commit d82689e249
18 changed files with 992 additions and 500 deletions
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9
drivers/net/wireless/iwlwifi/iwl-1000.c
View File

@ -212,6 +212,9 @@ static struct iwl_lib_ops iwl1000_lib = {
.set_ct_kill = iwl1000_set_ct_threshold,
},
.add_bcast_station = iwl_add_bcast_station,
.recover_from_tx_stall = iwl_bg_monitor_recover,
.check_plcp_health = iwl_good_plcp_health,
.check_ack_health = iwl_good_ack_health,
};
static const struct iwl_ops iwl1000_ops = {
@ -223,7 +226,7 @@ static const struct iwl_ops iwl1000_ops = {
};
struct iwl_cfg iwl1000_bgn_cfg = {
.name = "1000 Series BGN",
.name = "Intel(R) Centrino(R) Wireless-N 1000 BGN",
.fw_name_pre = IWL1000_FW_PRE,
.ucode_api_max = IWL1000_UCODE_API_MAX,
.ucode_api_min = IWL1000_UCODE_API_MIN,
@ -249,10 +252,11 @@ struct iwl_cfg iwl1000_bgn_cfg = {
.support_ct_kill_exit = true,
.plcp_delta_threshold = IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF,
.chain_noise_scale = 1000,
.monitor_recover_period = IWL_MONITORING_PERIOD,
};
struct iwl_cfg iwl1000_bg_cfg = {
.name = "1000 Series BG",
.name = "Intel(R) Centrino(R) Wireless-N 1000 BG",
.fw_name_pre = IWL1000_FW_PRE,
.ucode_api_max = IWL1000_UCODE_API_MAX,
.ucode_api_min = IWL1000_UCODE_API_MIN,
@ -277,6 +281,7 @@ struct iwl_cfg iwl1000_bg_cfg = {
.support_ct_kill_exit = true,
.plcp_delta_threshold = IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF,
.chain_noise_scale = 1000,
.monitor_recover_period = IWL_MONITORING_PERIOD,
};
MODULE_FIRMWARE(IWL1000_MODULE_FIRMWARE(IWL1000_UCODE_API_MAX));

83
drivers/net/wireless/iwlwifi/iwl-3945-rs.c
View File

@ -329,16 +329,25 @@ static void iwl3945_collect_tx_data(struct iwl3945_rs_sta *rs_sta,
}
static void rs_rate_init(void *priv_r, struct ieee80211_supported_band *sband,
struct ieee80211_sta *sta, void *priv_sta)
/*
* Called after adding a new station to initialize rate scaling
*/
void iwl3945_rs_rate_init(struct iwl_priv *priv, struct ieee80211_sta *sta, u8 sta_id)
{
struct iwl3945_rs_sta *rs_sta = priv_sta;
struct iwl_priv *priv = (struct iwl_priv *)priv_r;
struct ieee80211_hw *hw = priv->hw;
struct ieee80211_conf *conf = &priv->hw->conf;
struct iwl3945_sta_priv *psta;
struct iwl3945_rs_sta *rs_sta;
struct ieee80211_supported_band *sband;
int i;
IWL_DEBUG_RATE(priv, "enter\n");
IWL_DEBUG_INFO(priv, "enter \n");
if (sta_id == priv->hw_params.bcast_sta_id)
goto out;
spin_lock_init(&rs_sta->lock);
psta = (struct iwl3945_sta_priv *) sta->drv_priv;
rs_sta = &psta->rs_sta;
sband = hw->wiphy->bands[conf->channel->band];
rs_sta->priv = priv;
@ -351,9 +360,7 @@ static void rs_rate_init(void *priv_r, struct ieee80211_supported_band *sband,
rs_sta->last_flush = jiffies;
rs_sta->flush_time = IWL_RATE_FLUSH;
rs_sta->last_tx_packets = 0;
rs_sta->ibss_sta_added = 0;
init_timer(&rs_sta->rate_scale_flush);
rs_sta->rate_scale_flush.data = (unsigned long)rs_sta;
rs_sta->rate_scale_flush.function = iwl3945_bg_rate_scale_flush;
@ -380,8 +387,10 @@ static void rs_rate_init(void *priv_r, struct ieee80211_supported_band *sband,
IWL_FIRST_OFDM_RATE;
}
out:
priv->stations[sta_id].used &= ~IWL_STA_UCODE_INPROGRESS;
IWL_DEBUG_RATE(priv, "leave\n");
IWL_DEBUG_INFO(priv, "leave\n");
}
static void *rs_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir)
@ -405,6 +414,9 @@ static void *rs_alloc_sta(void *iwl_priv, struct ieee80211_sta *sta, gfp_t gfp)
rs_sta = &psta->rs_sta;
spin_lock_init(&rs_sta->lock);
init_timer(&rs_sta->rate_scale_flush);
IWL_DEBUG_RATE(priv, "leave\n");
return rs_sta;
@ -413,13 +425,14 @@ static void *rs_alloc_sta(void *iwl_priv, struct ieee80211_sta *sta, gfp_t gfp)
static void rs_free_sta(void *iwl_priv, struct ieee80211_sta *sta,
void *priv_sta)
{
struct iwl3945_sta_priv *psta = (void *) sta->drv_priv;
struct iwl3945_rs_sta *rs_sta = &psta->rs_sta;
struct iwl_priv *priv __maybe_unused = rs_sta->priv;
struct iwl3945_rs_sta *rs_sta = priv_sta;
IWL_DEBUG_RATE(priv, "enter\n");
/*
* Be careful not to use any members of iwl3945_rs_sta (like trying
* to use iwl_priv to print out debugging) since it may not be fully
* initialized at this point.
*/
del_timer_sync(&rs_sta->rate_scale_flush);
IWL_DEBUG_RATE(priv, "leave\n");
}
@ -458,6 +471,13 @@ static void rs_tx_status(void *priv_rate, struct ieee80211_supported_band *sband
return;
}
/* Treat uninitialized rate scaling data same as non-existing. */
if (!rs_sta->priv) {
IWL_DEBUG_RATE(priv, "leave: STA priv data uninitialized!\n");
return;
}
rs_sta->tx_packets++;
scale_rate_index = first_index;
@ -625,7 +645,6 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta,
u32 fail_count;
s8 scale_action = 0;
unsigned long flags;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
u16 rate_mask = sta ? sta->supp_rates[sband->band] : 0;
s8 max_rate_idx = -1;
struct iwl_priv *priv = (struct iwl_priv *)priv_r;
@ -633,6 +652,12 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta,
IWL_DEBUG_RATE(priv, "enter\n");
/* Treat uninitialized rate scaling data same as non-existing. */
if (rs_sta && !rs_sta->priv) {
IWL_DEBUG_RATE(priv, "Rate scaling information not initialized yet.\n");
priv_sta = NULL;
}
if (rate_control_send_low(sta, priv_sta, txrc))
return;
@ -650,20 +675,6 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta,
if (sband->band == IEEE80211_BAND_5GHZ)
rate_mask = rate_mask << IWL_FIRST_OFDM_RATE;
if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) &&
!rs_sta->ibss_sta_added) {
u8 sta_id = iwl_find_station(priv, hdr->addr1);
if (sta_id == IWL_INVALID_STATION) {
IWL_DEBUG_RATE(priv, "LQ: ADD station %pM\n",
hdr->addr1);
sta_id = iwl_add_station(priv, hdr->addr1, false,
CMD_ASYNC, NULL);
}
if (sta_id != IWL_INVALID_STATION)
rs_sta->ibss_sta_added = 1;
}
spin_lock_irqsave(&rs_sta->lock, flags);
/* for recent assoc, choose best rate regarding
@ -883,12 +894,22 @@ static void iwl3945_remove_debugfs(void *priv, void *priv_sta)
}
#endif
/*
* Initialization of rate scaling information is done by driver after
* the station is added. Since mac80211 calls this function before a
* station is added we ignore it.
*/
static void rs_rate_init_stub(void *priv_r, struct ieee80211_supported_band *sband,
struct ieee80211_sta *sta, void *priv_sta)
{
}
static struct rate_control_ops rs_ops = {
.module = NULL,
.name = RS_NAME,
.tx_status = rs_tx_status,
.get_rate = rs_get_rate,
.rate_init = rs_rate_init,
.rate_init = rs_rate_init_stub,
.alloc = rs_alloc,
.free = rs_free,
.alloc_sta = rs_alloc_sta,
@ -899,7 +920,6 @@ static struct rate_control_ops rs_ops = {
#endif
};
void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id)
{
struct iwl_priv *priv = hw->priv;
@ -916,6 +936,7 @@ void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id)
sta = ieee80211_find_sta(priv->vif,
priv->stations[sta_id].sta.sta.addr);
if (!sta) {
IWL_DEBUG_RATE(priv, "Unable to find station to initialize rate scaling.\n");
rcu_read_unlock();
return;
}

22
drivers/net/wireless/iwlwifi/iwl-3945.c
View File

@ -1911,6 +1911,8 @@ static int iwl3945_commit_rxon(struct iwl_priv *priv)
"configuration (%d).\n", rc);
return rc;
}
iwl_clear_ucode_stations(priv, false);
iwl_restore_stations(priv);
}
IWL_DEBUG_INFO(priv, "Sending RXON\n"
@ -1941,7 +1943,10 @@ static int iwl3945_commit_rxon(struct iwl_priv *priv)
memcpy(active_rxon, staging_rxon, sizeof(*active_rxon));
iwl_clear_stations_table(priv);
if (!new_assoc) {
iwl_clear_ucode_stations(priv, false);
iwl_restore_stations(priv);
}
/* If we issue a new RXON command which required a tune then we must
* send a new TXPOWER command or we won't be able to Tx any frames */
@ -1951,19 +1956,6 @@ static int iwl3945_commit_rxon(struct iwl_priv *priv)
return rc;
}
/* Add the broadcast address so we can send broadcast frames */
priv->cfg->ops->lib->add_bcast_station(priv);
/* If we have set the ASSOC_MSK and we are in BSS mode then
* add the IWL_AP_ID to the station rate table */
if (iwl_is_associated(priv) &&
(priv->iw_mode == NL80211_IFTYPE_STATION))
if (iwl_add_station(priv, priv->active_rxon.bssid_addr,
true, CMD_SYNC, NULL) == IWL_INVALID_STATION) {
IWL_ERR(priv, "Error adding AP address for transmit\n");
return -EIO;
}
/* Init the hardware's rate fallback order based on the band */
rc = iwl3945_init_hw_rate_table(priv);
if (rc) {
@ -2828,6 +2820,7 @@ static struct iwl_cfg iwl3945_bg_cfg = {
.led_compensation = 64,
.broken_powersave = true,
.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
.monitor_recover_period = IWL_MONITORING_PERIOD,
};
static struct iwl_cfg iwl3945_abg_cfg = {
@ -2846,6 +2839,7 @@ static struct iwl_cfg iwl3945_abg_cfg = {
.led_compensation = 64,
.broken_powersave = true,
.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
.monitor_recover_period = IWL_MONITORING_PERIOD,
};
DEFINE_PCI_DEVICE_TABLE(iwl3945_hw_card_ids) = {

1
drivers/net/wireless/iwlwifi/iwl-3945.h
View File

@ -95,7 +95,6 @@ struct iwl3945_rs_sta {
u8 tgg;
u8 flush_pending;
u8 start_rate;
u8 ibss_sta_added;
struct timer_list rate_scale_flush;
struct iwl3945_rate_scale_data win[IWL_RATE_COUNT_3945];
#ifdef CONFIG_MAC80211_DEBUGFS

5
drivers/net/wireless/iwlwifi/iwl-4965.c
View File

@ -2187,6 +2187,7 @@ static struct iwl_lib_ops iwl4965_lib = {
.load_ucode = iwl4965_load_bsm,
.dump_nic_event_log = iwl_dump_nic_event_log,
.dump_nic_error_log = iwl_dump_nic_error_log,
.dump_fh = iwl_dump_fh,
.set_channel_switch = iwl4965_hw_channel_switch,
.apm_ops = {
.init = iwl_apm_init,
@ -2220,6 +2221,7 @@ static struct iwl_lib_ops iwl4965_lib = {
.set_ct_kill = iwl4965_set_ct_threshold,
},
.add_bcast_station = iwl_add_bcast_station,
.check_plcp_health = iwl_good_plcp_health,
};
static const struct iwl_ops iwl4965_ops = {
@ -2231,7 +2233,7 @@ static const struct iwl_ops iwl4965_ops = {
};
struct iwl_cfg iwl4965_agn_cfg = {
.name = "4965AGN",
.name = "Intel(R) Wireless WiFi Link 4965AGN",
.fw_name_pre = IWL4965_FW_PRE,
.ucode_api_max = IWL4965_UCODE_API_MAX,
.ucode_api_min = IWL4965_UCODE_API_MIN,
@ -2254,6 +2256,7 @@ struct iwl_cfg iwl4965_agn_cfg = {
.led_compensation = 61,
.chain_noise_num_beacons = IWL4965_CAL_NUM_BEACONS,
.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
.monitor_recover_period = IWL_MONITORING_PERIOD,
};
/* Module firmware */

28
drivers/net/wireless/iwlwifi/iwl-5000.c
View File

@ -544,7 +544,6 @@ void iwl5000_init_alive_start(struct iwl_priv *priv)
goto restart;
}
iwl_clear_stations_table(priv);
ret = priv->cfg->ops->lib->alive_notify(priv);
if (ret) {
IWL_WARN(priv,
@ -1500,6 +1499,9 @@ struct iwl_lib_ops iwl5000_lib = {
.set_ct_kill = iwl5000_set_ct_threshold,
},
.add_bcast_station = iwl_add_bcast_station,
.recover_from_tx_stall = iwl_bg_monitor_recover,
.check_plcp_health = iwl_good_plcp_health,
.check_ack_health = iwl_good_ack_health,
};
static struct iwl_lib_ops iwl5150_lib = {
@ -1554,6 +1556,9 @@ static struct iwl_lib_ops iwl5150_lib = {
.set_ct_kill = iwl5150_set_ct_threshold,
},
.add_bcast_station = iwl_add_bcast_station,
.recover_from_tx_stall = iwl_bg_monitor_recover,
.check_plcp_health = iwl_good_plcp_health,
.check_ack_health = iwl_good_ack_health,
};
static const struct iwl_ops iwl5000_ops = {
@ -1580,7 +1585,7 @@ struct iwl_mod_params iwl50_mod_params = {
struct iwl_cfg iwl5300_agn_cfg = {
.name = "5300AGN",
.name = "Intel(R) Ultimate N WiFi Link 5300 AGN",
.fw_name_pre = IWL5000_FW_PRE,
.ucode_api_max = IWL5000_UCODE_API_MAX,
.ucode_api_min = IWL5000_UCODE_API_MIN,
@ -1603,10 +1608,11 @@ struct iwl_cfg iwl5300_agn_cfg = {
.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
.plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF,
.chain_noise_scale = 1000,
.monitor_recover_period = IWL_MONITORING_PERIOD,
};
struct iwl_cfg iwl5100_bgn_cfg = {
.name = "5100BGN",
.name = "Intel(R) WiFi Link 5100 BGN",
.fw_name_pre = IWL5000_FW_PRE,
.ucode_api_max = IWL5000_UCODE_API_MAX,
.ucode_api_min = IWL5000_UCODE_API_MIN,
@ -1629,10 +1635,11 @@ struct iwl_cfg iwl5100_bgn_cfg = {
.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
.plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF,
.chain_noise_scale = 1000,
.monitor_recover_period = IWL_MONITORING_PERIOD,
};
struct iwl_cfg iwl5100_abg_cfg = {
.name = "5100ABG",
.name = "Intel(R) WiFi Link 5100 ABG",
.fw_name_pre = IWL5000_FW_PRE,
.ucode_api_max = IWL5000_UCODE_API_MAX,
.ucode_api_min = IWL5000_UCODE_API_MIN,
@ -1653,10 +1660,11 @@ struct iwl_cfg iwl5100_abg_cfg = {
.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
.plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF,
.chain_noise_scale = 1000,
.monitor_recover_period = IWL_MONITORING_PERIOD,
};
struct iwl_cfg iwl5100_agn_cfg = {
.name = "5100AGN",
.name = "Intel(R) WiFi Link 5100 AGN",
.fw_name_pre = IWL5000_FW_PRE,
.ucode_api_max = IWL5000_UCODE_API_MAX,
.ucode_api_min = IWL5000_UCODE_API_MIN,
@ -1679,10 +1687,11 @@ struct iwl_cfg iwl5100_agn_cfg = {
.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
.plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF,
.chain_noise_scale = 1000,
.monitor_recover_period = IWL_MONITORING_PERIOD,
};
struct iwl_cfg iwl5350_agn_cfg = {
.name = "5350AGN",
.name = "Intel(R) WiMAX/WiFi Link 5350 AGN",
.fw_name_pre = IWL5000_FW_PRE,
.ucode_api_max = IWL5000_UCODE_API_MAX,
.ucode_api_min = IWL5000_UCODE_API_MIN,
@ -1705,10 +1714,11 @@ struct iwl_cfg iwl5350_agn_cfg = {
.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
.plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF,
.chain_noise_scale = 1000,
.monitor_recover_period = IWL_MONITORING_PERIOD,
};
struct iwl_cfg iwl5150_agn_cfg = {
.name = "5150AGN",
.name = "Intel(R) WiMAX/WiFi Link 5150 AGN",
.fw_name_pre = IWL5150_FW_PRE,
.ucode_api_max = IWL5150_UCODE_API_MAX,
.ucode_api_min = IWL5150_UCODE_API_MIN,
@ -1731,10 +1741,11 @@ struct iwl_cfg iwl5150_agn_cfg = {
.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
.plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF,
.chain_noise_scale = 1000,
.monitor_recover_period = IWL_MONITORING_PERIOD,
};
struct iwl_cfg iwl5150_abg_cfg = {
.name = "5150ABG",
.name = "Intel(R) WiMAX/WiFi Link 5150 ABG",
.fw_name_pre = IWL5150_FW_PRE,
.ucode_api_max = IWL5150_UCODE_API_MAX,
.ucode_api_min = IWL5150_UCODE_API_MIN,
@ -1755,6 +1766,7 @@ struct iwl_cfg iwl5150_abg_cfg = {
.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
.plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF,
.chain_noise_scale = 1000,
.monitor_recover_period = IWL_MONITORING_PERIOD,
};
MODULE_FIRMWARE(IWL5000_MODULE_FIRMWARE(IWL5000_UCODE_API_MAX));

24
drivers/net/wireless/iwlwifi/iwl-6000.c
View File

@ -278,6 +278,9 @@ static struct iwl_lib_ops iwl6000_lib = {
.set_ct_kill = iwl6000_set_ct_threshold,
},
.add_bcast_station = iwl_add_bcast_station,
.recover_from_tx_stall = iwl_bg_monitor_recover,
.check_plcp_health = iwl_good_plcp_health,
.check_ack_health = iwl_good_ack_health,
};
static const struct iwl_ops iwl6000_ops = {
@ -343,6 +346,9 @@ static struct iwl_lib_ops iwl6050_lib = {
.set_calib_version = iwl6050_set_calib_version,
},
.add_bcast_station = iwl_add_bcast_station,
.recover_from_tx_stall = iwl_bg_monitor_recover,
.check_plcp_health = iwl_good_plcp_health,
.check_ack_health = iwl_good_ack_health,
};
static const struct iwl_ops iwl6050_ops = {
@ -357,7 +363,7 @@ static const struct iwl_ops iwl6050_ops = {
* "i": Internal configuration, use internal Power Amplifier
*/
struct iwl_cfg iwl6000i_2agn_cfg = {
.name = "6000 Series 2x2 AGN",
.name = "Intel(R) Centrino(R) Advanced-N 6200 AGN",
.fw_name_pre = IWL6000_FW_PRE,
.ucode_api_max = IWL6000_UCODE_API_MAX,
.ucode_api_min = IWL6000_UCODE_API_MIN,
@ -386,10 +392,11 @@ struct iwl_cfg iwl6000i_2agn_cfg = {
.support_ct_kill_exit = true,
.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
.chain_noise_scale = 1000,
.monitor_recover_period = IWL_MONITORING_PERIOD,
};
struct iwl_cfg iwl6000i_2abg_cfg = {
.name = "6000 Series 2x2 ABG",
.name = "Intel(R) Centrino(R) Advanced-N 6200 ABG",
.fw_name_pre = IWL6000_FW_PRE,
.ucode_api_max = IWL6000_UCODE_API_MAX,
.ucode_api_min = IWL6000_UCODE_API_MIN,
@ -417,10 +424,11 @@ struct iwl_cfg iwl6000i_2abg_cfg = {
.support_ct_kill_exit = true,
.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
.chain_noise_scale = 1000,
.monitor_recover_period = IWL_MONITORING_PERIOD,
};
struct iwl_cfg iwl6000i_2bg_cfg = {
.name = "6000 Series 2x2 BG",
.name = "Intel(R) Centrino(R) Advanced-N 6200 BG",
.fw_name_pre = IWL6000_FW_PRE,
.ucode_api_max = IWL6000_UCODE_API_MAX,
.ucode_api_min = IWL6000_UCODE_API_MIN,
@ -448,10 +456,11 @@ struct iwl_cfg iwl6000i_2bg_cfg = {
.support_ct_kill_exit = true,
.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
.chain_noise_scale = 1000,
.monitor_recover_period = IWL_MONITORING_PERIOD,
};
struct iwl_cfg iwl6050_2agn_cfg = {
.name = "6050 Series 2x2 AGN",
.name = "Intel(R) Centrino(R) Advanced-N + WiMAX 6250 AGN",
.fw_name_pre = IWL6050_FW_PRE,
.ucode_api_max = IWL6050_UCODE_API_MAX,
.ucode_api_min = IWL6050_UCODE_API_MIN,
@ -480,10 +489,11 @@ struct iwl_cfg iwl6050_2agn_cfg = {
.support_ct_kill_exit = true,
.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
.chain_noise_scale = 1500,
.monitor_recover_period = IWL_MONITORING_PERIOD,
};
struct iwl_cfg iwl6050_2abg_cfg = {
.name = "6050 Series 2x2 ABG",
.name = "Intel(R) Centrino(R) Advanced-N + WiMAX 6250 ABG",
.fw_name_pre = IWL6050_FW_PRE,
.ucode_api_max = IWL6050_UCODE_API_MAX,
.ucode_api_min = IWL6050_UCODE_API_MIN,
@ -511,10 +521,11 @@ struct iwl_cfg iwl6050_2abg_cfg = {
.support_ct_kill_exit = true,
.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
.chain_noise_scale = 1500,
.monitor_recover_period = IWL_MONITORING_PERIOD,
};
struct iwl_cfg iwl6000_3agn_cfg = {
.name = "6000 Series 3x3 AGN",
.name = "Intel(R) Centrino(R) Ultimate-N 6300 AGN",
.fw_name_pre = IWL6000_FW_PRE,
.ucode_api_max = IWL6000_UCODE_API_MAX,
.ucode_api_min = IWL6000_UCODE_API_MIN,
@ -543,6 +554,7 @@ struct iwl_cfg iwl6000_3agn_cfg = {
.support_ct_kill_exit = true,
.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
.chain_noise_scale = 1000,
.monitor_recover_period = IWL_MONITORING_PERIOD,
};
MODULE_FIRMWARE(IWL6000_MODULE_FIRMWARE(IWL6000_UCODE_API_MAX));

124
drivers/net/wireless/iwlwifi/iwl-agn-rs.c
View File

@ -769,6 +769,15 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
IWL_DEBUG_RATE_LIMIT(priv, "get frame ack response, update rate scale window\n");
/* Treat uninitialized rate scaling data same as non-existing. */
if (!lq_sta) {
IWL_DEBUG_RATE(priv, "Station rate scaling not created yet.\n");
return;
} else if (!lq_sta->drv) {
IWL_DEBUG_RATE(priv, "Rate scaling not initialized yet.\n");
return;
}
if (!ieee80211_is_data(hdr->frame_control) ||
info->flags & IEEE80211_TX_CTL_NO_ACK)
return;
@ -778,10 +787,6 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
!(info->flags & IEEE80211_TX_STAT_AMPDU))
return;
if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) &&
!lq_sta->ibss_sta_added)
return;
/*
* Ignore this Tx frame response if its initial rate doesn't match
* that of latest Link Quality command. There may be stragglers
@ -827,7 +832,7 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
lq_sta->missed_rate_counter++;
if (lq_sta->missed_rate_counter > IWL_MISSED_RATE_MAX) {
lq_sta->missed_rate_counter = 0;
iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC);
iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC, false);
}
/* Regardless, ignore this status info for outdated rate */
return;
@ -1915,7 +1920,7 @@ static u32 rs_update_rate_tbl(struct iwl_priv *priv,
/* Update uCode's rate table. */
rate = rate_n_flags_from_tbl(priv, tbl, index, is_green);
rs_fill_link_cmd(priv, lq_sta, rate);
iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC);
iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC, false);
return rate;
}
@ -2291,7 +2296,7 @@ lq_update:
IWL_DEBUG_RATE(priv, "Switch current mcs: %X index: %d\n",
tbl->current_rate, index);
rs_fill_link_cmd(priv, lq_sta, tbl->current_rate);
iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC);
iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC, false);
} else
done_search = 1;
}
@ -2340,7 +2345,20 @@ out:
return;
}
/**
* rs_initialize_lq - Initialize a station's hardware rate table
*
* The uCode's station table contains a table of fallback rates
* for automatic fallback during transmission.
*
* NOTE: This sets up a default set of values. These will be replaced later
* if the driver's iwl-agn-rs rate scaling algorithm is used, instead of
* rc80211_simple.
*
* NOTE: Run REPLY_ADD_STA command to set up station table entry, before
* calling this function (which runs REPLY_TX_LINK_QUALITY_CMD,
* which requires station table entry to exist).
*/
static void rs_initialize_lq(struct iwl_priv *priv,
struct ieee80211_conf *conf,
struct ieee80211_sta *sta,
@ -2359,10 +2377,6 @@ static void rs_initialize_lq(struct iwl_priv *priv,
i = lq_sta->last_txrate_idx;
if ((lq_sta->lq.sta_id == 0xff) &&
(priv->iw_mode == NL80211_IFTYPE_ADHOC))
goto out;
valid_tx_ant = priv->hw_params.valid_tx_ant;
if (!lq_sta->search_better_tbl)
@ -2390,7 +2404,8 @@ static void rs_initialize_lq(struct iwl_priv *priv,
tbl->current_rate = rate;
rs_set_expected_tpt_table(lq_sta, tbl);
rs_fill_link_cmd(NULL, lq_sta, rate);
iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC);
priv->stations[lq_sta->lq.sta_id].lq = &lq_sta->lq;
iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_SYNC, true);
out:
return;
}
@ -2402,9 +2417,6 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta, void *priv_sta,
struct sk_buff *skb = txrc->skb;
struct ieee80211_supported_band *sband = txrc->sband;
struct iwl_priv *priv = (struct iwl_priv *)priv_r;
struct ieee80211_conf *conf = &priv->hw->conf;
struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct iwl_lq_sta *lq_sta = priv_sta;
int rate_idx;
@ -2422,30 +2434,18 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta, void *priv_sta,
lq_sta->max_rate_idx = -1;
}
/* Treat uninitialized rate scaling data same as non-existing. */
if (lq_sta && !lq_sta->drv) {
IWL_DEBUG_RATE(priv, "Rate scaling not initialized yet.\n");
priv_sta = NULL;
}
/* Send management frames and NO_ACK data using lowest rate. */
if (rate_control_send_low(sta, priv_sta, txrc))
return;
rate_idx = lq_sta->last_txrate_idx;
if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) &&
!lq_sta->ibss_sta_added) {
u8 sta_id = iwl_find_station(priv, hdr->addr1);
if (sta_id == IWL_INVALID_STATION) {
IWL_DEBUG_RATE(priv, "LQ: ADD station %pM\n",
hdr->addr1);
sta_id = iwl_add_station(priv, hdr->addr1,
false, CMD_ASYNC, ht_cap);
}
if ((sta_id != IWL_INVALID_STATION)) {
lq_sta->lq.sta_id = sta_id;
lq_sta->lq.rs_table[0].rate_n_flags = 0;
lq_sta->ibss_sta_added = 1;
rs_initialize_lq(priv, conf, sta, lq_sta);
}
}
if (lq_sta->last_rate_n_flags & RATE_MCS_HT_MSK) {
rate_idx -= IWL_FIRST_OFDM_RATE;
/* 6M and 9M shared same MCS index */
@ -2495,16 +2495,25 @@ static void *rs_alloc_sta(void *priv_rate, struct ieee80211_sta *sta,
return lq_sta;
}
static void rs_rate_init(void *priv_r, struct ieee80211_supported_band *sband,
struct ieee80211_sta *sta, void *priv_sta)
/*
* Called after adding a new station to initialize rate scaling
*/
void iwl_rs_rate_init(struct iwl_priv *priv, struct ieee80211_sta *sta, u8 sta_id)
{
int i, j;
struct iwl_priv *priv = (struct iwl_priv *)priv_r;
struct ieee80211_hw *hw = priv->hw;
struct ieee80211_conf *conf = &priv->hw->conf;
struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
struct iwl_lq_sta *lq_sta = priv_sta;
struct iwl_station_priv *sta_priv;
struct iwl_lq_sta *lq_sta;
struct ieee80211_supported_band *sband;
lq_sta->lq.sta_id = 0xff;
sta_priv = (struct iwl_station_priv *) sta->drv_priv;
lq_sta = &sta_priv->lq_sta;
sband = hw->wiphy->bands[conf->channel->band];
lq_sta->lq.sta_id = sta_id;
for (j = 0; j < LQ_SIZE; j++)
for (i = 0; i < IWL_RATE_COUNT; i++)
@ -2516,33 +2525,13 @@ static void rs_rate_init(void *priv_r, struct ieee80211_supported_band *sband,
for (i = 0; i < IWL_RATE_COUNT; i++)
rs_rate_scale_clear_window(&lq_sta->lq_info[j].win[i]);
IWL_DEBUG_RATE(priv, "LQ: *** rate scale station global init ***\n");
IWL_DEBUG_RATE(priv, "LQ: *** rate scale station global init for station %d ***\n",
sta_id);
/* TODO: what is a good starting rate for STA? About middle? Maybe not
* the lowest or the highest rate.. Could consider using RSSI from
* previous packets? Need to have IEEE 802.1X auth succeed immediately
* after assoc.. */
lq_sta->ibss_sta_added = 0;
if (priv->iw_mode == NL80211_IFTYPE_AP) {
u8 sta_id = iwl_find_station(priv,
sta->addr);
/* for IBSS the call are from tasklet */
IWL_DEBUG_RATE(priv, "LQ: ADD station %pM\n", sta->addr);
if (sta_id == IWL_INVALID_STATION) {
IWL_DEBUG_RATE(priv, "LQ: ADD station %pM\n", sta->addr);
sta_id = iwl_add_station(priv, sta->addr, false,
CMD_ASYNC, ht_cap);
}
if ((sta_id != IWL_INVALID_STATION)) {
lq_sta->lq.sta_id = sta_id;
lq_sta->lq.rs_table[0].rate_n_flags = 0;
}
/* FIXME: this is w/a remove it later */
priv->assoc_station_added = 1;
}
lq_sta->is_dup = 0;
lq_sta->max_rate_idx = -1;
lq_sta->missed_rate_counter = IWL_MISSED_RATE_MAX;
@ -2795,7 +2784,7 @@ static ssize_t rs_sta_dbgfs_scale_table_write(struct file *file,
if (lq_sta->dbg_fixed_rate) {
rs_fill_link_cmd(NULL, lq_sta, lq_sta->dbg_fixed_rate);
iwl_send_lq_cmd(lq_sta->drv, &lq_sta->lq, CMD_ASYNC);
iwl_send_lq_cmd(lq_sta->drv, &lq_sta->lq, CMD_ASYNC, false);
}
return count;
@ -2992,12 +2981,21 @@ static void rs_remove_debugfs(void *priv, void *priv_sta)
}
#endif
/*
* Initialization of rate scaling information is done by driver after
* the station is added. Since mac80211 calls this function before a
* station is added we ignore it.
*/
static void rs_rate_init_stub(void *priv_r, struct ieee80211_supported_band *sband,
struct ieee80211_sta *sta, void *priv_sta)
{
}
static struct rate_control_ops rs_ops = {
.module = NULL,
.name = RS_NAME,
.tx_status = rs_tx_status,
.get_rate = rs_get_rate,
.rate_init = rs_rate_init,
.rate_init = rs_rate_init_stub,
.alloc = rs_alloc,
.free = rs_free,
.alloc_sta = rs_alloc_sta,

7
drivers/net/wireless/iwlwifi/iwl-agn-rs.h
View File

@ -403,7 +403,6 @@ struct iwl_lq_sta {
u8 is_green;
u8 is_dup;
enum ieee80211_band band;
u8 ibss_sta_added;
/* The following are bitmaps of rates; IWL_RATE_6M_MASK, etc. */
u32 supp_rates;
@ -478,6 +477,12 @@ static inline u8 iwl3945_get_prev_ieee_rate(u8 rate_index)
*/
extern void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id);
/* Initialize station's rate scaling information after adding station */
extern void iwl_rs_rate_init(struct iwl_priv *priv,
struct ieee80211_sta *sta, u8 sta_id);
extern void iwl3945_rs_rate_init(struct iwl_priv *priv,
struct ieee80211_sta *sta, u8 sta_id);
/**
* iwl_rate_control_register - Register the rate control algorithm callbacks
*

154
drivers/net/wireless/iwlwifi/iwl-agn.c
View File

@ -144,9 +144,6 @@ int iwl_commit_rxon(struct iwl_priv *priv)
return 0;
}
/* station table will be cleared */
priv->assoc_station_added = 0;
/* If we are currently associated and the new config requires
* an RXON_ASSOC and the new config wants the associated mask enabled,
* we must clear the associated from the active configuration
@ -166,6 +163,8 @@ int iwl_commit_rxon(struct iwl_priv *priv)
IWL_ERR(priv, "Error clearing ASSOC_MSK (%d)\n", ret);
return ret;
}
iwl_clear_ucode_stations(priv, false);
iwl_restore_stations(priv);
}
IWL_DEBUG_INFO(priv, "Sending RXON\n"
@ -179,9 +178,8 @@ int iwl_commit_rxon(struct iwl_priv *priv)
iwl_set_rxon_hwcrypto(priv, !priv->cfg->mod_params->sw_crypto);
/* Apply the new configuration
* RXON unassoc clears the station table in uCode, send it before
* we add the bcast station. If assoc bit is set, we will send RXON
* after having added the bcast and bssid station.
* RXON unassoc clears the station table in uCode so restoration of
* stations is needed after it (the RXON command) completes
*/
if (!new_assoc) {
ret = iwl_send_cmd_pdu(priv, REPLY_RXON,
@ -190,35 +188,14 @@ int iwl_commit_rxon(struct iwl_priv *priv)
IWL_ERR(priv, "Error setting new RXON (%d)\n", ret);
return ret;
}
IWL_DEBUG_INFO(priv, "Return from !new_assoc RXON. \n");
memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
iwl_clear_ucode_stations(priv, false);
iwl_restore_stations(priv);
}
iwl_clear_stations_table(priv);
priv->start_calib = 0;
/* Add the broadcast address so we can send broadcast frames */
priv->cfg->ops->lib->add_bcast_station(priv);
/* If we have set the ASSOC_MSK and we are in BSS mode then
* add the IWL_AP_ID to the station rate table */
if (new_assoc) {
if (priv->iw_mode == NL80211_IFTYPE_STATION) {
ret = iwl_rxon_add_station(priv,
priv->active_rxon.bssid_addr, 1);
if (ret == IWL_INVALID_STATION) {
IWL_ERR(priv,
"Error adding AP address for TX.\n");
return -EIO;
}
priv->assoc_station_added = 1;
if (priv->default_wep_key &&
iwl_send_static_wepkey_cmd(priv, 0))
IWL_ERR(priv,
"Could not send WEP static key.\n");
}
/*
* allow CTS-to-self if possible for new association.
* this is relevant only for 5000 series and up,
@ -2087,7 +2064,6 @@ static void iwl_alive_start(struct iwl_priv *priv)
goto restart;
}
iwl_clear_stations_table(priv);
ret = priv->cfg->ops->lib->alive_notify(priv);
if (ret) {
IWL_WARN(priv,
@ -2098,6 +2074,13 @@ static void iwl_alive_start(struct iwl_priv *priv)
/* After the ALIVE response, we can send host commands to the uCode */
set_bit(STATUS_ALIVE, &priv->status);
if (priv->cfg->ops->lib->recover_from_tx_stall) {
/* Enable timer to monitor the driver queues */
mod_timer(&priv->monitor_recover,
jiffies +
msecs_to_jiffies(priv->cfg->monitor_recover_period));
}
if (iwl_is_rfkill(priv))
return;
@ -2143,6 +2126,8 @@ static void iwl_alive_start(struct iwl_priv *priv)
wake_up_interruptible(&priv->wait_command_queue);
iwl_power_update_mode(priv, true);
IWL_DEBUG_INFO(priv, "Updated power mode\n");
return;
@ -2162,7 +2147,7 @@ static void __iwl_down(struct iwl_priv *priv)
if (!exit_pending)
set_bit(STATUS_EXIT_PENDING, &priv->status);
iwl_clear_stations_table(priv);
iwl_clear_ucode_stations(priv, true);
/* Unblock any waiting calls */
wake_up_interruptible_all(&priv->wait_command_queue);
@ -2359,8 +2344,6 @@ static int __iwl_up(struct iwl_priv *priv)
for (i = 0; i < MAX_HW_RESTARTS; i++) {
iwl_clear_stations_table(priv);
/* load bootstrap state machine,
* load bootstrap program into processor's memory,
* prepare to load the "initialize" uCode */
@ -2501,10 +2484,6 @@ void iwl_post_associate(struct iwl_priv *priv)
return;
}
IWL_DEBUG_ASSOC(priv, "Associated as %d to: %pM\n",
priv->assoc_id, priv->active_rxon.bssid_addr);
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return;
@ -2556,6 +2535,9 @@ void iwl_post_associate(struct iwl_priv *priv)
iwlcore_commit_rxon(priv);
IWL_DEBUG_ASSOC(priv, "Associated as %d to: %pM\n",
priv->assoc_id, priv->active_rxon.bssid_addr);
switch (priv->iw_mode) {
case NL80211_IFTYPE_STATION:
break;
@ -2565,7 +2547,7 @@ void iwl_post_associate(struct iwl_priv *priv)
/* assume default assoc id */
priv->assoc_id = 1;
iwl_rxon_add_station(priv, priv->bssid, 0);
iwl_add_local_station(priv, priv->bssid, true);
iwl_send_beacon_cmd(priv);
break;
@ -2576,9 +2558,6 @@ void iwl_post_associate(struct iwl_priv *priv)
break;
}
if (priv->iw_mode == NL80211_IFTYPE_ADHOC)
priv->assoc_station_added = 1;
spin_lock_irqsave(&priv->lock, flags);
iwl_activate_qos(priv, 0);
spin_unlock_irqrestore(&priv->lock, flags);
@ -2937,10 +2916,21 @@ static int iwl_mac_ampdu_action(struct ieee80211_hw *hw,
return ret;
case IEEE80211_AMPDU_TX_START:
IWL_DEBUG_HT(priv, "start Tx\n");
return iwl_tx_agg_start(priv, sta->addr, tid, ssn);
ret = iwl_tx_agg_start(priv, sta->addr, tid, ssn);
if (ret == 0) {
priv->_agn.agg_tids_count++;
IWL_DEBUG_HT(priv, "priv->_agn.agg_tids_count = %u\n",
priv->_agn.agg_tids_count);
}
return ret;
case IEEE80211_AMPDU_TX_STOP:
IWL_DEBUG_HT(priv, "stop Tx\n");
ret = iwl_tx_agg_stop(priv, sta->addr, tid);
if ((ret == 0) && (priv->_agn.agg_tids_count > 0)) {
priv->_agn.agg_tids_count--;
IWL_DEBUG_HT(priv, "priv->_agn.agg_tids_count = %u\n",
priv->_agn.agg_tids_count);
}
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return 0;
else
@ -2977,18 +2967,7 @@ static void iwl_mac_sta_notify(struct ieee80211_hw *hw,
struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
int sta_id;
/*
* TODO: We really should use this callback to
* actually maintain the station table in
* the device.
*/
switch (cmd) {
case STA_NOTIFY_ADD:
atomic_set(&sta_priv->pending_frames, 0);
if (vif->type == NL80211_IFTYPE_AP)
sta_priv->client = true;
break;
case STA_NOTIFY_SLEEP:
WARN_ON(!sta_priv->client);
sta_priv->asleep = true;
@ -3009,6 +2988,55 @@ static void iwl_mac_sta_notify(struct ieee80211_hw *hw,
}
}
/**
* iwl_restore_wepkeys - Restore WEP keys to device
*/
static void iwl_restore_wepkeys(struct iwl_priv *priv)
{
mutex_lock(&priv->mutex);
if (priv->iw_mode == NL80211_IFTYPE_STATION &&
priv->default_wep_key &&
iwl_send_static_wepkey_cmd(priv, 0))
IWL_ERR(priv, "Could not send WEP static key\n");
mutex_unlock(&priv->mutex);
}
static int iwlagn_mac_sta_add(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
struct iwl_priv *priv = hw->priv;
struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
bool is_ap = priv->iw_mode == NL80211_IFTYPE_STATION;
int ret;
u8 sta_id;
IWL_DEBUG_INFO(priv, "received request to add station %pM\n",
sta->addr);
atomic_set(&sta_priv->pending_frames, 0);
if (vif->type == NL80211_IFTYPE_AP)
sta_priv->client = true;
ret = iwl_add_station_common(priv, sta->addr, is_ap, &sta->ht_cap,
&sta_id);
if (ret) {
IWL_ERR(priv, "Unable to add station %pM (%d)\n",
sta->addr, ret);
/* Should we return success if return code is EEXIST ? */
return ret;
}
iwl_restore_wepkeys(priv);
/* Initialize rate scaling */
IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM \n",
sta->addr);
iwl_rs_rate_init(priv, sta, sta_id);
return ret;
}
/*****************************************************************************
*
* sysfs attributes
@ -3214,6 +3242,13 @@ static void iwl_setup_deferred_work(struct iwl_priv *priv)
priv->ucode_trace.data = (unsigned long)priv;
priv->ucode_trace.function = iwl_bg_ucode_trace;
if (priv->cfg->ops->lib->recover_from_tx_stall) {
init_timer(&priv->monitor_recover);
priv->monitor_recover.data = (unsigned long)priv;
priv->monitor_recover.function =
priv->cfg->ops->lib->recover_from_tx_stall;
}
if (!priv->cfg->use_isr_legacy)
tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
iwl_irq_tasklet, (unsigned long)priv);
@ -3233,6 +3268,8 @@ static void iwl_cancel_deferred_work(struct iwl_priv *priv)
cancel_work_sync(&priv->beacon_update);
del_timer_sync(&priv->statistics_periodic);
del_timer_sync(&priv->ucode_trace);
if (priv->cfg->ops->lib->recover_from_tx_stall)
del_timer_sync(&priv->monitor_recover);
}
static void iwl_init_hw_rates(struct iwl_priv *priv,
@ -3270,9 +3307,6 @@ static int iwl_init_drv(struct iwl_priv *priv)
mutex_init(&priv->mutex);
mutex_init(&priv->sync_cmd_mutex);
/* Clear the driver's (not device's) station table */
iwl_clear_stations_table(priv);
priv->ieee_channels = NULL;
priv->ieee_rates = NULL;
priv->band = IEEE80211_BAND_2GHZ;
@ -3280,6 +3314,7 @@ static int iwl_init_drv(struct iwl_priv *priv)
priv->iw_mode = NL80211_IFTYPE_STATION;
priv->current_ht_config.smps = IEEE80211_SMPS_STATIC;
priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF;
priv->_agn.agg_tids_count = 0;
/* initialize force reset */
priv->force_reset[IWL_RF_RESET].reset_duration =
@ -3365,6 +3400,8 @@ static struct ieee80211_ops iwl_hw_ops = {
.ampdu_action = iwl_mac_ampdu_action,
.hw_scan = iwl_mac_hw_scan,
.sta_notify = iwl_mac_sta_notify,
.sta_add = iwlagn_mac_sta_add,
.sta_remove = iwl_mac_sta_remove,
};
static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
@ -3468,7 +3505,7 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
iwl_hw_detect(priv);
IWL_INFO(priv, "Detected Intel Wireless WiFi Link %s REV=0x%X\n",
IWL_INFO(priv, "Detected %s, REV=0x%X\n",
priv->cfg->name, priv->hw_rev);
/* We disable the RETRY_TIMEOUT register (0x41) to keep
@ -3649,7 +3686,6 @@ static void __devexit iwl_pci_remove(struct pci_dev *pdev)
iwl_rx_queue_free(priv, &priv->rxq);
iwl_hw_txq_ctx_free(priv);
iwl_clear_stations_table(priv);
iwl_eeprom_free(priv);

102
drivers/net/wireless/iwlwifi/iwl-core.c
View File

@ -2283,8 +2283,6 @@ static int iwl_set_mode(struct iwl_priv *priv, struct ieee80211_vif *vif)
memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
iwl_clear_stations_table(priv);
return iwlcore_commit_rxon(priv);
}
@ -2317,6 +2315,10 @@ int iwl_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
err = iwl_set_mode(priv, vif);
if (err)
goto out_err;
/* Add the broadcast address so we can send broadcast frames */
priv->cfg->ops->lib->add_bcast_station(priv);
goto out;
out_err:
@ -2339,6 +2341,8 @@ void iwl_mac_remove_interface(struct ieee80211_hw *hw,
mutex_lock(&priv->mutex);
iwl_clear_ucode_stations(priv, true);
if (iwl_is_ready_rf(priv)) {
iwl_scan_cancel_timeout(priv, 100);
priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
@ -2526,7 +2530,6 @@ void iwl_mac_reset_tsf(struct ieee80211_hw *hw)
spin_lock_irqsave(&priv->lock, flags);
priv->assoc_id = 0;
priv->assoc_capability = 0;
priv->assoc_station_added = 0;
/* new association get rid of ibss beacon skb */
if (priv->ibss_beacon)
@ -3048,6 +3051,99 @@ int iwl_force_reset(struct iwl_priv *priv, int mode)
}
return 0;
}
EXPORT_SYMBOL(iwl_force_reset);
/**
* iwl_bg_monitor_recover - Timer callback to check for stuck queue and recover
*
* During normal condition (no queue is stuck), the timer is continually set to
* execute every monitor_recover_period milliseconds after the last timer
* expired. When the queue read_ptr is at the same place, the timer is
* shorten to 100mSecs. This is
* 1) to reduce the chance that the read_ptr may wrap around (not stuck)
* 2) to detect the stuck queues quicker before the station and AP can
* disassociate each other.
*
* This function monitors all the tx queues and recover from it if any
* of the queues are stuck.
* 1. It first check the cmd queue for stuck conditions. If it is stuck,
* it will recover by resetting the firmware and return.
* 2. Then, it checks for station association. If it associates it will check
* other queues. If any queue is stuck, it will recover by resetting
* the firmware.
* Note: It the number of times the queue read_ptr to be at the same place to
* be MAX_REPEAT+1 in order to consider to be stuck.
*/
/*
* The maximum number of times the read pointer of the tx queue at the
* same place without considering to be stuck.
*/
#define MAX_REPEAT (2)
static int iwl_check_stuck_queue(struct iwl_priv *priv, int cnt)
{
struct iwl_tx_queue *txq;
struct iwl_queue *q;
txq = &priv->txq[cnt];
q = &txq->q;
/* queue is empty, skip */
if (q->read_ptr != q->write_ptr) {
if (q->read_ptr == q->last_read_ptr) {
/* a queue has not been read from last time */
if (q->repeat_same_read_ptr > MAX_REPEAT) {
IWL_ERR(priv,
"queue %d stuck %d time. Fw reload.\n",
q->id, q->repeat_same_read_ptr);
q->repeat_same_read_ptr = 0;
iwl_force_reset(priv, IWL_FW_RESET);
} else {
q->repeat_same_read_ptr++;
IWL_DEBUG_RADIO(priv,
"queue %d, not read %d time\n",
q->id,
q->repeat_same_read_ptr);
mod_timer(&priv->monitor_recover, jiffies +
msecs_to_jiffies(IWL_ONE_HUNDRED_MSECS));
}
return 1;
} else {
q->last_read_ptr = q->read_ptr;
q->repeat_same_read_ptr = 0;
}
}
return 0;
}
void iwl_bg_monitor_recover(unsigned long data)
{
struct iwl_priv *priv = (struct iwl_priv *)data;
int cnt;
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return;
/* monitor and check for stuck cmd queue */
if (iwl_check_stuck_queue(priv, IWL_CMD_QUEUE_NUM))
return;
/* monitor and check for other stuck queues */
if (iwl_is_associated(priv)) {
for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
/* skip as we already checked the command queue */
if (cnt == IWL_CMD_QUEUE_NUM)
continue;
if (iwl_check_stuck_queue(priv, cnt))
return;
}
}
/*
* Reschedule the timer to occur in
* priv->cfg->monitor_recover_period
*/
mod_timer(&priv->monitor_recover,
jiffies + msecs_to_jiffies(priv->cfg->monitor_recover_period));
}
EXPORT_SYMBOL(iwl_bg_monitor_recover);
#ifdef CONFIG_PM

19
drivers/net/wireless/iwlwifi/iwl-core.h
View File

@ -191,6 +191,14 @@ struct iwl_lib_ops {
struct iwl_temp_ops temp_ops;
/* station management */
void (*add_bcast_station)(struct iwl_priv *priv);
/* recover from tx queue stall */
void (*recover_from_tx_stall)(unsigned long data);
/* check for plcp health */
bool (*check_plcp_health)(struct iwl_priv *priv,
struct iwl_rx_packet *pkt);
/* check for ack health */
bool (*check_ack_health)(struct iwl_priv *priv,
struct iwl_rx_packet *pkt);
};
struct iwl_led_ops {
@ -295,6 +303,8 @@ struct iwl_cfg {
const bool support_wimax_coexist;
u8 plcp_delta_threshold;
s32 chain_noise_scale;
/* timer period for monitor the driver queues */
u32 monitor_recover_period;
};
/***************************
@ -430,6 +440,10 @@ 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);
bool iwl_good_plcp_health(struct iwl_priv *priv,
struct iwl_rx_packet *pkt);
bool iwl_good_ack_health(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,
@ -568,6 +582,9 @@ static inline u16 iwl_pcie_link_ctl(struct iwl_priv *priv)
pci_read_config_word(priv->pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl);
return pci_lnk_ctl;
}
void iwl_bg_monitor_recover(unsigned long data);
#ifdef CONFIG_PM
int iwl_pci_suspend(struct pci_dev *pdev, pm_message_t state);
int iwl_pci_resume(struct pci_dev *pdev);
@ -667,7 +684,7 @@ extern int iwl_send_statistics_request(struct iwl_priv *priv,
u8 flags, bool clear);
extern int iwl_verify_ucode(struct iwl_priv *priv);
extern int iwl_send_lq_cmd(struct iwl_priv *priv,
struct iwl_link_quality_cmd *lq, u8 flags);
struct iwl_link_quality_cmd *lq, u8 flags, bool init);
extern void iwl_rx_reply_rx(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb);
extern void iwl_rx_reply_rx_phy(struct iwl_priv *priv,

23
drivers/net/wireless/iwlwifi/iwl-dev.h
View File

@ -183,6 +183,10 @@ struct iwl_queue {
int n_bd; /* number of BDs in this queue */
int write_ptr; /* 1-st empty entry (index) host_w*/
int read_ptr; /* last used entry (index) host_r*/
/* use for monitoring and recovering the stuck queue */
int last_read_ptr; /* storing the last read_ptr */
/* number of time read_ptr and last_read_ptr are the same */
u8 repeat_same_read_ptr;
dma_addr_t dma_addr; /* physical addr for BD's */
int n_window; /* safe queue window */
u32 id;
@ -544,11 +548,18 @@ struct iwl_qos_info {
struct iwl_qosparam_cmd def_qos_parm;
};
/*
* Structure should be accessed with sta_lock held. When station addition
* is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
* the commands (iwl_addsta_cmd and iwl_link_quality_cmd) without sta_lock
* held.
*/
struct iwl_station_entry {
struct iwl_addsta_cmd sta;
struct iwl_tid_data tid[MAX_TID_COUNT];
u8 used;
struct iwl_hw_key keyinfo;
struct iwl_link_quality_cmd *lq;
};
/*
@ -1037,6 +1048,11 @@ struct iwl_event_log {
#define IWL_DELAY_NEXT_FORCE_RF_RESET (HZ*3)
#define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
/* timer constants use to monitor and recover stuck tx queues in mSecs */
#define IWL_MONITORING_PERIOD (1000)
#define IWL_ONE_HUNDRED_MSECS (100)
#define IWL_SIXTY_SECS (60000)
enum iwl_reset {
IWL_RF_RESET = 0,
IWL_FW_RESET,
@ -1163,7 +1179,6 @@ struct iwl_priv {
u16 active_rate;
u8 assoc_station_added;
u8 start_calib;
struct iwl_sensitivity_data sensitivity_data;
struct iwl_chain_noise_data chain_noise_data;
@ -1285,6 +1300,11 @@ struct iwl_priv {
int ict_index;
u32 inta;
bool use_ict;
/*
* reporting the number of tids has AGG on. 0 means
* no AGGREGATION
*/
u8 agg_tids_count;
} _agn;
#endif
};
@ -1348,6 +1368,7 @@ struct iwl_priv {
struct work_struct run_time_calib_work;
struct timer_list statistics_periodic;
struct timer_list ucode_trace;
struct timer_list monitor_recover;
bool hw_ready;
struct iwl_event_log event_log;

155
drivers/net/wireless/iwlwifi/iwl-rx.c
View File

@ -616,29 +616,75 @@ 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)
/* the threshold ratio of actual_ack_cnt to expected_ack_cnt in percent */
#define ACK_CNT_RATIO (50)
#define BA_TIMEOUT_CNT (5)
#define BA_TIMEOUT_MAX (16)
/**
* iwl_good_ack_health - checks for ACK count ratios, BA timeout retries.
*
* When the ACK count ratio is 0 and aggregated BA timeout retries exceeding
* the BA_TIMEOUT_MAX, reload firmware and bring system back to normal
* operation state.
*/
bool iwl_good_ack_health(struct iwl_priv *priv,
struct iwl_rx_packet *pkt)
{
int change;
struct iwl_rx_packet *pkt = rxb_addr(rxb);
bool rc = true;
int actual_ack_cnt_delta, expected_ack_cnt_delta;
int ba_timeout_delta;
actual_ack_cnt_delta =
le32_to_cpu(pkt->u.stats.tx.actual_ack_cnt) -
le32_to_cpu(priv->statistics.tx.actual_ack_cnt);
expected_ack_cnt_delta =
le32_to_cpu(pkt->u.stats.tx.expected_ack_cnt) -
le32_to_cpu(priv->statistics.tx.expected_ack_cnt);
ba_timeout_delta =
le32_to_cpu(pkt->u.stats.tx.agg.ba_timeout) -
le32_to_cpu(priv->statistics.tx.agg.ba_timeout);
if ((priv->_agn.agg_tids_count > 0) &&
(expected_ack_cnt_delta > 0) &&
(((actual_ack_cnt_delta * 100) / expected_ack_cnt_delta)
< ACK_CNT_RATIO) &&
(ba_timeout_delta > BA_TIMEOUT_CNT)) {
IWL_DEBUG_RADIO(priv, "actual_ack_cnt delta = %d,"
" expected_ack_cnt = %d\n",
actual_ack_cnt_delta, expected_ack_cnt_delta);
#ifdef CONFIG_IWLWIFI_DEBUG
IWL_DEBUG_RADIO(priv, "rx_detected_cnt delta = %d\n",
priv->delta_statistics.tx.rx_detected_cnt);
IWL_DEBUG_RADIO(priv,
"ack_or_ba_timeout_collision delta = %d\n",
priv->delta_statistics.tx.
ack_or_ba_timeout_collision);
#endif
IWL_DEBUG_RADIO(priv, "agg ba_timeout delta = %d\n",
ba_timeout_delta);
if (!actual_ack_cnt_delta &&
(ba_timeout_delta >= BA_TIMEOUT_MAX))
rc = false;
}
return rc;
}
EXPORT_SYMBOL(iwl_good_ack_health);
/**
* iwl_good_plcp_health - checks for plcp error.
*
* When the plcp error is exceeding the thresholds, reset the radio
* to improve the throughput.
*/
bool iwl_good_plcp_health(struct iwl_priv *priv,
struct iwl_rx_packet *pkt)
{
bool rc = true;
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 +705,11 @@ 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,
@ -672,22 +718,73 @@ void iwl_rx_statistics(struct iwl_priv *priv,
* combined_plcp_delta,
* plcp_msec
*/
IWL_DEBUG_RADIO(priv, PLCP_MSG,
IWL_DEBUG_RADIO(priv, "plcp_err exceeded %u, "
"%u, %u, %u, %u, %d, %u mSecs\n",
priv->cfg->plcp_delta_threshold,
le32_to_cpu(pkt->u.stats.rx.ofdm.plcp_err),
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
*/
iwl_force_reset(priv, IWL_RF_RESET);
rc = false;
}
}
return rc;
}
EXPORT_SYMBOL(iwl_good_plcp_health);
static void iwl_recover_from_statistics(struct iwl_priv *priv,
struct iwl_rx_packet *pkt)
{
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return;
if (iwl_is_associated(priv)) {
if (priv->cfg->ops->lib->check_ack_health) {
if (!priv->cfg->ops->lib->check_ack_health(
priv, pkt)) {
/*
* low ack count detected
* restart Firmware
*/
IWL_ERR(priv, "low ack count detected, "
"restart firmware\n");
iwl_force_reset(priv, IWL_FW_RESET);
}
} else if (priv->cfg->ops->lib->check_plcp_health) {
if (!priv->cfg->ops->lib->check_plcp_health(
priv, pkt)) {
/*
* high plcp error detected
* reset Radio
*/
iwl_force_reset(priv, IWL_RF_RESET);
}
}
}
}
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
iwl_recover_from_statistics(priv, pkt);
memcpy(&priv->statistics, &pkt->u.stats, sizeof(priv->statistics));

642
drivers/net/wireless/iwlwifi/iwl-sta.c
View File

@ -29,14 +29,12 @@
#include <net/mac80211.h>
#include <linux/etherdevice.h>
#include <linux/sched.h>
#include "iwl-dev.h"
#include "iwl-core.h"
#include "iwl-sta.h"
#define IWL_STA_DRIVER_ACTIVE BIT(0) /* driver entry is active */
#define IWL_STA_UCODE_ACTIVE BIT(1) /* ucode entry is active */
u8 iwl_find_station(struct iwl_priv *priv, const u8 *addr)
{
int i;
@ -64,6 +62,19 @@ u8 iwl_find_station(struct iwl_priv *priv, const u8 *addr)
addr, priv->num_stations);
out:
/*
* It may be possible that more commands interacting with stations
* arrive before we completed processing the adding of
* station
*/
if (ret != IWL_INVALID_STATION &&
(!(priv->stations[ret].used & IWL_STA_UCODE_ACTIVE) ||
((priv->stations[ret].used & IWL_STA_UCODE_ACTIVE) &&
(priv->stations[ret].used & IWL_STA_UCODE_INPROGRESS)))) {
IWL_ERR(priv, "Requested station info for sta %d before ready. \n",
ret);
ret = IWL_INVALID_STATION;
}
spin_unlock_irqrestore(&priv->sta_lock, flags);
return ret;
}
@ -158,13 +169,6 @@ static void iwl_process_add_sta_resp(struct iwl_priv *priv,
priv->stations[sta_id].sta.mode ==
STA_CONTROL_MODIFY_MSK ? "Modified" : "Added",
addsta->sta.addr);
/*
* Determine if we wanted to modify or add a station,
* if adding a station succeeded we have some more initialization
* to do when using station notification. TODO
*/
spin_unlock_irqrestore(&priv->sta_lock, flags);
}
@ -190,6 +194,10 @@ int iwl_send_add_sta(struct iwl_priv *priv,
.flags = flags,
.data = data,
};
u8 sta_id = sta->sta.sta_id;
IWL_DEBUG_INFO(priv, "Adding sta %u (%pM) %ssynchronously\n",
sta_id, sta->sta.addr, flags & CMD_ASYNC ? "a" : "");
if (flags & CMD_ASYNC)
cmd.callback = iwl_add_sta_callback;
@ -263,18 +271,19 @@ static void iwl_set_ht_add_station(struct iwl_priv *priv, u8 index,
}
/**
* iwl_add_station - Add station to tables in driver and device
* iwl_prep_station - Prepare station information for addition
*
* should be called with sta_lock held
*/
u8 iwl_add_station(struct iwl_priv *priv, const u8 *addr, bool is_ap, u8 flags,
struct ieee80211_sta_ht_cap *ht_info)
static u8 iwl_prep_station(struct iwl_priv *priv, const u8 *addr,
bool is_ap,
struct ieee80211_sta_ht_cap *ht_info)
{
struct iwl_station_entry *station;
unsigned long flags_spin;
int i;
int sta_id = IWL_INVALID_STATION;
u8 sta_id = IWL_INVALID_STATION;
u16 rate;
spin_lock_irqsave(&priv->sta_lock, flags_spin);
if (is_ap)
sta_id = IWL_AP_ID;
else if (is_broadcast_ether_addr(addr))
@ -292,20 +301,32 @@ u8 iwl_add_station(struct iwl_priv *priv, const u8 *addr, bool is_ap, u8 flags,
sta_id = i;
}
/* These two conditions have the same outcome, but keep them separate
since they have different meanings */
if (unlikely(sta_id == IWL_INVALID_STATION)) {
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
/*
* These two conditions have the same outcome, but keep them
* separate
*/
if (unlikely(sta_id == IWL_INVALID_STATION))
return sta_id;
/*
* uCode is not able to deal with multiple requests to add a
* station. Keep track if one is in progress so that we do not send
* another.
*/
if (priv->stations[sta_id].used & IWL_STA_UCODE_INPROGRESS) {
IWL_DEBUG_INFO(priv, "STA %d already in process of being added.\n",
sta_id);
return sta_id;
}
if (priv->stations[sta_id].used &&
if ((priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE) &&
(priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE) &&
!compare_ether_addr(priv->stations[sta_id].sta.sta.addr, addr)) {
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
IWL_DEBUG_ASSOC(priv, "STA %d (%pM) already added, not adding again.\n",
sta_id, addr);
return sta_id;
}
station = &priv->stations[sta_id];
station->used = IWL_STA_DRIVER_ACTIVE;
IWL_DEBUG_ASSOC(priv, "Add STA to driver ID %d: %pM\n",
@ -330,86 +351,185 @@ u8 iwl_add_station(struct iwl_priv *priv, const u8 *addr, bool is_ap, u8 flags,
/* Turn on both antennas for the station... */
station->sta.rate_n_flags = cpu_to_le16(rate | RATE_MCS_ANT_AB_MSK);
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
/* Add station to device's station table */
iwl_send_add_sta(priv, &station->sta, flags);
return sta_id;
}
EXPORT_SYMBOL(iwl_add_station);
static void iwl_sta_ucode_deactivate(struct iwl_priv *priv, const u8 *addr)
#define STA_WAIT_TIMEOUT (HZ/2)
/**
* iwl_add_station_common -
*/
int iwl_add_station_common(struct iwl_priv *priv, const u8 *addr,
bool is_ap,
struct ieee80211_sta_ht_cap *ht_info,
u8 *sta_id_r)
{
unsigned long flags;
u8 sta_id = iwl_find_station(priv, addr);
struct iwl_station_entry *station;
unsigned long flags_spin;
int ret = 0;
u8 sta_id;
BUG_ON(sta_id == IWL_INVALID_STATION);
*sta_id_r = 0;
spin_lock_irqsave(&priv->sta_lock, flags_spin);
sta_id = iwl_prep_station(priv, addr, is_ap, ht_info);
if (sta_id == IWL_INVALID_STATION) {
IWL_ERR(priv, "Unable to prepare station %pM for addition\n",
addr);
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
return -EINVAL;
}
IWL_DEBUG_ASSOC(priv, "Removed STA from Ucode: %pM\n", addr);
/*
* uCode is not able to deal with multiple requests to add a
* station. Keep track if one is in progress so that we do not send
* another.
*/
if (priv->stations[sta_id].used & IWL_STA_UCODE_INPROGRESS) {
IWL_DEBUG_INFO(priv, "STA %d already in process of being added.\n",
sta_id);
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
return -EEXIST;
}
spin_lock_irqsave(&priv->sta_lock, flags);
if ((priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE) &&
(priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE)) {
IWL_DEBUG_ASSOC(priv, "STA %d (%pM) already added, not adding again.\n",
sta_id, addr);
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
return -EEXIST;
}
priv->stations[sta_id].used |= IWL_STA_UCODE_INPROGRESS;
station = &priv->stations[sta_id];
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
/* Add station to device's station table */
ret = iwl_send_add_sta(priv, &station->sta, CMD_SYNC);
if (ret) {
IWL_ERR(priv, "Adding station %pM failed.\n", station->sta.sta.addr);
spin_lock_irqsave(&priv->sta_lock, flags_spin);
priv->stations[sta_id].used &= ~IWL_STA_DRIVER_ACTIVE;
priv->stations[sta_id].used &= ~IWL_STA_UCODE_INPROGRESS;
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
}
*sta_id_r = sta_id;
return ret;
}
EXPORT_SYMBOL(iwl_add_station_common);
static void iwl_sta_init_lq(struct iwl_priv *priv, const u8 *addr, bool is_ap)
{
int i, r;
struct iwl_link_quality_cmd link_cmd = {
.reserved1 = 0,
};
u32 rate_flags;
/* Set up the rate scaling to start at selected rate, fall back
* all the way down to 1M in IEEE order, and then spin on 1M */
if (is_ap)
r = IWL_RATE_54M_INDEX;
else if (priv->band == IEEE80211_BAND_5GHZ)
r = IWL_RATE_6M_INDEX;
else
r = IWL_RATE_1M_INDEX;
for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) {
rate_flags = 0;
if (r >= IWL_FIRST_CCK_RATE && r <= IWL_LAST_CCK_RATE)
rate_flags |= RATE_MCS_CCK_MSK;
rate_flags |= first_antenna(priv->hw_params.valid_tx_ant) <<
RATE_MCS_ANT_POS;
link_cmd.rs_table[i].rate_n_flags =
iwl_hw_set_rate_n_flags(iwl_rates[r].plcp, rate_flags);
r = iwl_get_prev_ieee_rate(r);
}
link_cmd.general_params.single_stream_ant_msk =
first_antenna(priv->hw_params.valid_tx_ant);
link_cmd.general_params.dual_stream_ant_msk = 3;
link_cmd.agg_params.agg_dis_start_th = LINK_QUAL_AGG_DISABLE_START_DEF;
link_cmd.agg_params.agg_time_limit =
cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF);
/* Update the rate scaling for control frame Tx to AP */
link_cmd.sta_id = is_ap ? IWL_AP_ID : priv->hw_params.bcast_sta_id;
iwl_send_cmd_pdu(priv, REPLY_TX_LINK_QUALITY_CMD,
sizeof(link_cmd), &link_cmd);
}
/*
* iwl_add_local_stations - Add stations not requested by mac80211
*
* This will be either the broadcast station or the bssid station needed by
* ad-hoc.
*
* Function sleeps.
*/
int iwl_add_local_station(struct iwl_priv *priv, const u8 *addr, bool init_rs)
{
int ret;
u8 sta_id;
ret = iwl_add_station_common(priv, addr, 0, NULL, &sta_id);
if (ret) {
IWL_ERR(priv, "Unable to add station %pM\n", addr);
return ret;
}
if (init_rs)
/* Set up default rate scaling table in device's station table */
iwl_sta_init_lq(priv, addr, false);
return 0;
}
EXPORT_SYMBOL(iwl_add_local_station);
/**
* iwl_sta_ucode_deactivate - deactivate ucode status for a station
*
* priv->sta_lock must be held
*/
static void iwl_sta_ucode_deactivate(struct iwl_priv *priv, u8 sta_id)
{
/* Ucode must be active and driver must be non active */
if (priv->stations[sta_id].used != IWL_STA_UCODE_ACTIVE)
IWL_ERR(priv, "removed non active STA %d\n", sta_id);
IWL_ERR(priv, "removed non active STA %u\n", sta_id);
priv->stations[sta_id].used &= ~IWL_STA_UCODE_ACTIVE;
memset(&priv->stations[sta_id], 0, sizeof(struct iwl_station_entry));
spin_unlock_irqrestore(&priv->sta_lock, flags);
IWL_DEBUG_ASSOC(priv, "Removed STA %u\n", sta_id);
}
static void iwl_remove_sta_callback(struct iwl_priv *priv,
struct iwl_device_cmd *cmd,
struct iwl_rx_packet *pkt)
{
struct iwl_rem_sta_cmd *rm_sta =
(struct iwl_rem_sta_cmd *)cmd->cmd.payload;
const u8 *addr = rm_sta->addr;
if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
IWL_ERR(priv, "Bad return from REPLY_REMOVE_STA (0x%08X)\n",
pkt->hdr.flags);
return;
}
switch (pkt->u.rem_sta.status) {
case REM_STA_SUCCESS_MSK:
iwl_sta_ucode_deactivate(priv, addr);
break;
default:
IWL_ERR(priv, "REPLY_REMOVE_STA failed\n");
break;
}
}
static int iwl_send_remove_station(struct iwl_priv *priv, const u8 *addr,
u8 flags)
static int iwl_send_remove_station(struct iwl_priv *priv,
struct iwl_station_entry *station)
{
struct iwl_rx_packet *pkt;
int ret;
unsigned long flags_spin;
struct iwl_rem_sta_cmd rm_sta_cmd;
struct iwl_host_cmd cmd = {
.id = REPLY_REMOVE_STA,
.len = sizeof(struct iwl_rem_sta_cmd),
.flags = flags,
.flags = CMD_SYNC,
.data = &rm_sta_cmd,
};
memset(&rm_sta_cmd, 0, sizeof(rm_sta_cmd));
rm_sta_cmd.num_sta = 1;
memcpy(&rm_sta_cmd.addr, addr , ETH_ALEN);
memcpy(&rm_sta_cmd.addr, &station->sta.sta.addr , ETH_ALEN);
cmd.flags |= CMD_WANT_SKB;
if (flags & CMD_ASYNC)
cmd.callback = iwl_remove_sta_callback;
else
cmd.flags |= CMD_WANT_SKB;
ret = iwl_send_cmd(priv, &cmd);
if (ret || (flags & CMD_ASYNC))
if (ret)
return ret;
pkt = (struct iwl_rx_packet *)cmd.reply_page;
@ -422,7 +542,9 @@ static int iwl_send_remove_station(struct iwl_priv *priv, const u8 *addr,
if (!ret) {
switch (pkt->u.rem_sta.status) {
case REM_STA_SUCCESS_MSK:
iwl_sta_ucode_deactivate(priv, addr);
spin_lock_irqsave(&priv->sta_lock, flags_spin);
iwl_sta_ucode_deactivate(priv, station->sta.sta.sta_id);
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
IWL_DEBUG_ASSOC(priv, "REPLY_REMOVE_STA PASSED\n");
break;
default:
@ -439,23 +561,35 @@ static int iwl_send_remove_station(struct iwl_priv *priv, const u8 *addr,
/**
* iwl_remove_station - Remove driver's knowledge of station.
*/
int iwl_remove_station(struct iwl_priv *priv, const u8 *addr, bool is_ap)
static int iwl_remove_station(struct iwl_priv *priv, struct ieee80211_sta *sta)
{
int sta_id = IWL_INVALID_STATION;
int i, ret = -EINVAL;
unsigned long flags;
bool is_ap = priv->iw_mode == NL80211_IFTYPE_STATION;
struct iwl_station_entry *station;
if (!iwl_is_ready(priv)) {
IWL_DEBUG_INFO(priv,
"Unable to remove station %pM, device not ready. \n",
sta->addr);
/*
* It is typical for stations to be removed when we are
* going down. Return success since device will be down
* soon anyway
*/
return 0;
}
spin_lock_irqsave(&priv->sta_lock, flags);
if (is_ap)
sta_id = IWL_AP_ID;
else if (is_broadcast_ether_addr(addr))
sta_id = priv->hw_params.bcast_sta_id;
else
for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++)
if (priv->stations[i].used &&
!compare_ether_addr(priv->stations[i].sta.sta.addr,
addr)) {
sta->addr)) {
sta_id = i;
break;
}
@ -464,17 +598,17 @@ int iwl_remove_station(struct iwl_priv *priv, const u8 *addr, bool is_ap)
goto out;
IWL_DEBUG_ASSOC(priv, "Removing STA from driver:%d %pM\n",
sta_id, addr);
sta_id, sta->addr);
if (!(priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE)) {
IWL_ERR(priv, "Removing %pM but non DRIVER active\n",
addr);
IWL_DEBUG_INFO(priv, "Removing %pM but non DRIVER active\n",
sta->addr);
goto out;
}
if (!(priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE)) {
IWL_ERR(priv, "Removing %pM but non UCODE active\n",
addr);
IWL_DEBUG_INFO(priv, "Removing %pM but non UCODE active\n",
sta->addr);
goto out;
}
@ -485,9 +619,10 @@ int iwl_remove_station(struct iwl_priv *priv, const u8 *addr, bool is_ap)
BUG_ON(priv->num_stations < 0);
station = &priv->stations[sta_id];
spin_unlock_irqrestore(&priv->sta_lock, flags);
ret = iwl_send_remove_station(priv, addr, CMD_ASYNC);
ret = iwl_send_remove_station(priv, station);
return ret;
out:
spin_unlock_irqrestore(&priv->sta_lock, flags);
@ -495,37 +630,122 @@ out:
}
/**
* iwl_clear_stations_table - Clear the driver's station table
*
* NOTE: This does not clear or otherwise alter the device's station table.
* iwl_clear_ucode_stations() - clear entire station table driver and/or ucode
* @priv:
* @force: If set then the uCode station table needs to be cleared here. If
* not set then the uCode station table has already been cleared,
* for example after sending it a RXON command without ASSOC bit
* set, and we just need to change driver state here.
*/
void iwl_clear_stations_table(struct iwl_priv *priv)
void iwl_clear_ucode_stations(struct iwl_priv *priv, bool force)
{
unsigned long flags;
int i;
unsigned long flags_spin;
bool cleared = false;
spin_lock_irqsave(&priv->sta_lock, flags);
IWL_DEBUG_INFO(priv, "Clearing ucode stations in driver%s\n",
force ? " and ucode" : "");
if (iwl_is_alive(priv) &&
!test_bit(STATUS_EXIT_PENDING, &priv->status) &&
iwl_send_cmd_pdu_async(priv, REPLY_REMOVE_ALL_STA, 0, NULL, NULL))
IWL_ERR(priv, "Couldn't clear the station table\n");
priv->num_stations = 0;
memset(priv->stations, 0, sizeof(priv->stations));
/* clean ucode key table bit map */
priv->ucode_key_table = 0;
/* keep track of static keys */
for (i = 0; i < WEP_KEYS_MAX ; i++) {
if (priv->wep_keys[i].key_size)
set_bit(i, &priv->ucode_key_table);
if (force) {
if (!iwl_is_ready(priv)) {
/*
* If device is not ready at this point the station
* table is likely already empty (uCode not ready
* to receive station requests) or will soon be
* due to interface going down.
*/
IWL_DEBUG_INFO(priv, "Unable to remove stations from device - device not ready\n");
} else {
iwl_send_cmd_pdu_async(priv, REPLY_REMOVE_ALL_STA, 0, NULL, NULL);
}
}
spin_unlock_irqrestore(&priv->sta_lock, flags);
spin_lock_irqsave(&priv->sta_lock, flags_spin);
if (force) {
IWL_DEBUG_INFO(priv, "Clearing all station information in driver\n");
priv->num_stations = 0;
memset(priv->stations, 0, sizeof(priv->stations));
} else {
for (i = 0; i < priv->hw_params.max_stations; i++) {
if (priv->stations[i].used & IWL_STA_UCODE_ACTIVE) {
IWL_DEBUG_INFO(priv, "Clearing ucode active for station %d \n", i);
priv->stations[i].used &= ~IWL_STA_UCODE_ACTIVE;
cleared = true;
}
}
}
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
if (!cleared)
IWL_DEBUG_INFO(priv, "No active stations found to be cleared\n");
}
EXPORT_SYMBOL(iwl_clear_stations_table);
EXPORT_SYMBOL(iwl_clear_ucode_stations);
/**
* iwl_restore_stations() - Restore driver known stations to device
*
* All stations considered active by driver, but not present in ucode, is
* restored.
*
* Function sleeps.
*/
void iwl_restore_stations(struct iwl_priv *priv)
{
struct iwl_station_entry *station;
unsigned long flags_spin;
int i;
bool found = false;
int ret;
if (!iwl_is_ready(priv)) {
IWL_DEBUG_INFO(priv, "Not ready yet, not restoring any stations.\n");
return;
}
IWL_DEBUG_ASSOC(priv, "Restoring all known stations ... start.\n");
spin_lock_irqsave(&priv->sta_lock, flags_spin);
for (i = 0; i < priv->hw_params.max_stations; i++) {
if ((priv->stations[i].used & IWL_STA_DRIVER_ACTIVE) &&
!(priv->stations[i].used & IWL_STA_UCODE_ACTIVE)) {
IWL_DEBUG_ASSOC(priv, "Restoring sta %pM\n",
priv->stations[i].sta.sta.addr);
priv->stations[i].sta.mode = 0;
priv->stations[i].used |= IWL_STA_UCODE_INPROGRESS;
found = true;
}
}
for (i = 0; i < priv->hw_params.max_stations; i++) {
if ((priv->stations[i].used & IWL_STA_UCODE_INPROGRESS)) {
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
station = &priv->stations[i];
ret = iwl_send_add_sta(priv, &priv->stations[i].sta, CMD_SYNC);
if (ret) {
IWL_ERR(priv, "Adding station %pM failed.\n",
station->sta.sta.addr);
spin_lock_irqsave(&priv->sta_lock, flags_spin);
priv->stations[i].used &= ~IWL_STA_DRIVER_ACTIVE;
priv->stations[i].used &= ~IWL_STA_UCODE_INPROGRESS;
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
}
/*
* Rate scaling has already been initialized, send
* current LQ command
*/
if (station->lq)
iwl_send_lq_cmd(priv, station->lq, CMD_SYNC, true);
spin_lock_irqsave(&priv->sta_lock, flags_spin);
priv->stations[i].used &= ~IWL_STA_UCODE_INPROGRESS;
}
}
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
if (!found)
IWL_DEBUG_INFO(priv, "Restoring all known stations .... no stations to be restored.\n");
else
IWL_DEBUG_INFO(priv, "Restoring all known stations .... complete.\n");
}
EXPORT_SYMBOL(iwl_restore_stations);
int iwl_get_free_ucode_key_index(struct iwl_priv *priv)
{
@ -948,9 +1168,22 @@ static inline void iwl_dump_lq_cmd(struct iwl_priv *priv,
}
#endif
/**
* iwl_send_lq_cmd() - Send link quality command
* @init: This command is sent as part of station initialization right
* after station has been added.
*
* The link quality command is sent as the last step of station creation.
* This is the special case in which init is set and we call a callback in
* this case to clear the state indicating that station creation is in
* progress.
*/
int iwl_send_lq_cmd(struct iwl_priv *priv,
struct iwl_link_quality_cmd *lq, u8 flags)
struct iwl_link_quality_cmd *lq, u8 flags, bool init)
{
int ret = 0;
unsigned long flags_spin;
struct iwl_host_cmd cmd = {
.id = REPLY_TX_LINK_QUALITY_CMD,
.len = sizeof(struct iwl_link_quality_cmd),
@ -966,167 +1199,31 @@ int iwl_send_lq_cmd(struct iwl_priv *priv,
lq->sta_id = IWL_AP_ID;
iwl_dump_lq_cmd(priv, lq);
BUG_ON(init && (cmd.flags & CMD_ASYNC));
if (iwl_is_associated(priv) && priv->assoc_station_added)
return iwl_send_cmd(priv, &cmd);
iwl_dump_lq_cmd(priv, lq);
ret = iwl_send_cmd(priv, &cmd);
if (ret || (cmd.flags & CMD_ASYNC))
return ret;
if (init) {
IWL_DEBUG_INFO(priv, "init LQ command complete, clearing sta addition status for sta %d \n",
lq->sta_id);
spin_lock_irqsave(&priv->sta_lock, flags_spin);
priv->stations[lq->sta_id].used &= ~IWL_STA_UCODE_INPROGRESS;
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
}
return 0;
}
EXPORT_SYMBOL(iwl_send_lq_cmd);
/**
* iwl_sta_init_lq - Initialize a station's hardware rate table
*
* The uCode's station table contains a table of fallback rates
* for automatic fallback during transmission.
*
* NOTE: This sets up a default set of values. These will be replaced later
* if the driver's iwl-agn-rs rate scaling algorithm is used, instead of
* rc80211_simple.
*
* NOTE: Run REPLY_ADD_STA command to set up station table entry, before
* calling this function (which runs REPLY_TX_LINK_QUALITY_CMD,
* which requires station table entry to exist).
*/
static void iwl_sta_init_lq(struct iwl_priv *priv, const u8 *addr, bool is_ap)
{
int i, r;
struct iwl_link_quality_cmd link_cmd = {
.reserved1 = 0,
};
u32 rate_flags;
/* Set up the rate scaling to start at selected rate, fall back
* all the way down to 1M in IEEE order, and then spin on 1M */
if (is_ap)
r = IWL_RATE_54M_INDEX;
else if (priv->band == IEEE80211_BAND_5GHZ)
r = IWL_RATE_6M_INDEX;
else
r = IWL_RATE_1M_INDEX;
for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) {
rate_flags = 0;
if (r >= IWL_FIRST_CCK_RATE && r <= IWL_LAST_CCK_RATE)
rate_flags |= RATE_MCS_CCK_MSK;
rate_flags |= first_antenna(priv->hw_params.valid_tx_ant) <<
RATE_MCS_ANT_POS;
link_cmd.rs_table[i].rate_n_flags =
iwl_hw_set_rate_n_flags(iwl_rates[r].plcp, rate_flags);
r = iwl_get_prev_ieee_rate(r);
}
link_cmd.general_params.single_stream_ant_msk =
first_antenna(priv->hw_params.valid_tx_ant);
link_cmd.general_params.dual_stream_ant_msk = 3;
link_cmd.agg_params.agg_dis_start_th = LINK_QUAL_AGG_DISABLE_START_DEF;
link_cmd.agg_params.agg_time_limit =
cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF);
/* Update the rate scaling for control frame Tx to AP */
link_cmd.sta_id = is_ap ? IWL_AP_ID : priv->hw_params.bcast_sta_id;
iwl_send_cmd_pdu_async(priv, REPLY_TX_LINK_QUALITY_CMD,
sizeof(link_cmd), &link_cmd, NULL);
}
/**
* iwl_rxon_add_station - add station into station table.
*
* there is only one AP station with id= IWL_AP_ID
* NOTE: mutex must be held before calling this function
*/
int iwl_rxon_add_station(struct iwl_priv *priv, const u8 *addr, bool is_ap)
{
struct ieee80211_sta *sta;
struct ieee80211_sta_ht_cap ht_config;
struct ieee80211_sta_ht_cap *cur_ht_config = NULL;
u8 sta_id;
/*
* Set HT capabilities. It is ok to set this struct even if not using
* HT config: the priv->current_ht_config.is_ht flag will just be false
*/
rcu_read_lock();
sta = ieee80211_find_sta(priv->vif, addr);
if (sta) {
memcpy(&ht_config, &sta->ht_cap, sizeof(ht_config));
cur_ht_config = &ht_config;
}
rcu_read_unlock();
/* Add station to device's station table */
sta_id = iwl_add_station(priv, addr, is_ap, CMD_SYNC, cur_ht_config);
/* Set up default rate scaling table in device's station table */
iwl_sta_init_lq(priv, addr, is_ap);
return sta_id;
}
EXPORT_SYMBOL(iwl_rxon_add_station);
/**
* iwl_sta_init_bcast_lq - Initialize a bcast station's hardware rate table
*
* NOTE: Run REPLY_ADD_STA command to set up station table entry, before
* calling this function (which runs REPLY_TX_LINK_QUALITY_CMD,
* which requires station table entry to exist).
*/
static void iwl_sta_init_bcast_lq(struct iwl_priv *priv)
{
int i, r;
struct iwl_link_quality_cmd link_cmd = {
.reserved1 = 0,
};
u32 rate_flags;
/* Set up the rate scaling to start at selected rate, fall back
* all the way down to 1M in IEEE order, and then spin on 1M */
if (priv->band == IEEE80211_BAND_5GHZ)
r = IWL_RATE_6M_INDEX;
else
r = IWL_RATE_1M_INDEX;
for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) {
rate_flags = 0;
if (r >= IWL_FIRST_CCK_RATE && r <= IWL_LAST_CCK_RATE)
rate_flags |= RATE_MCS_CCK_MSK;
rate_flags |= first_antenna(priv->hw_params.valid_tx_ant) <<
RATE_MCS_ANT_POS;
link_cmd.rs_table[i].rate_n_flags =
iwl_hw_set_rate_n_flags(iwl_rates[r].plcp, rate_flags);
r = iwl_get_prev_ieee_rate(r);
}
link_cmd.general_params.single_stream_ant_msk =
first_antenna(priv->hw_params.valid_tx_ant);
link_cmd.general_params.dual_stream_ant_msk = 3;
link_cmd.agg_params.agg_dis_start_th = LINK_QUAL_AGG_DISABLE_START_DEF;
link_cmd.agg_params.agg_time_limit =
cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF);
/* Update the rate scaling for control frame Tx to AP */
link_cmd.sta_id = priv->hw_params.bcast_sta_id;
iwl_send_cmd_pdu_async(priv, REPLY_TX_LINK_QUALITY_CMD,
sizeof(link_cmd), &link_cmd, NULL);
}
/**
* iwl_add_bcast_station - add broadcast station into station table.
*/
void iwl_add_bcast_station(struct iwl_priv *priv)
{
IWL_DEBUG_INFO(priv, "Adding broadcast station to station table\n");
iwl_add_station(priv, iwl_bcast_addr, false, CMD_SYNC, NULL);
/* Set up default rate scaling table in device's station table */
iwl_sta_init_bcast_lq(priv);
iwl_add_local_station(priv, iwl_bcast_addr, true);
}
EXPORT_SYMBOL(iwl_add_bcast_station);
@ -1136,7 +1233,14 @@ EXPORT_SYMBOL(iwl_add_bcast_station);
void iwl3945_add_bcast_station(struct iwl_priv *priv)
{
IWL_DEBUG_INFO(priv, "Adding broadcast station to station table\n");
iwl_add_station(priv, iwl_bcast_addr, false, CMD_SYNC, NULL);
iwl_add_local_station(priv, iwl_bcast_addr, false);
/*
* It is assumed that when station is added more initialization
* needs to be done, but for 3945 it is not the case and we can
* just release station table access right here.
*/
priv->stations[priv->hw_params.bcast_sta_id].used &= ~IWL_STA_UCODE_INPROGRESS;
}
EXPORT_SYMBOL(iwl3945_add_bcast_station);
@ -1159,6 +1263,13 @@ int iwl_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr)
/* If we are a client station in a BSS network, use the special
* AP station entry (that's the only station we communicate with) */
case NL80211_IFTYPE_STATION:
/*
* If addition of station not complete yet, which means
* that rate scaling has not been initialized, then return
* the broadcast station.
*/
if (!(priv->stations[IWL_AP_ID].used & IWL_STA_UCODE_ACTIVE))
return priv->hw_params.bcast_sta_id;
return IWL_AP_ID;
/* If we are an AP, then find the station, or use BCAST */
@ -1175,13 +1286,6 @@ int iwl_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr)
if (sta_id != IWL_INVALID_STATION)
return sta_id;
/* Create new station table entry */
sta_id = iwl_add_station(priv, hdr->addr1, false,
CMD_ASYNC, NULL);
if (sta_id != IWL_INVALID_STATION)
return sta_id;
IWL_DEBUG_DROP(priv, "Station %pM not in station map. "
"Defaulting to broadcast...\n",
hdr->addr1);
@ -1291,3 +1395,19 @@ void iwl_sta_modify_sleep_tx_count(struct iwl_priv *priv, int sta_id, int cnt)
iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
}
int iwl_mac_sta_remove(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
int ret;
struct iwl_priv *priv = hw->priv;
IWL_DEBUG_INFO(priv, "received request to remove station %pM\n",
sta->addr);
ret = iwl_remove_station(priv, sta);
if (ret)
IWL_ERR(priv, "Error removing station %pM\n",
sta->addr);
return ret;
}
EXPORT_SYMBOL(iwl_mac_sta_remove);

20
drivers/net/wireless/iwlwifi/iwl-sta.h
View File

@ -32,6 +32,12 @@
#define HW_KEY_DYNAMIC 0
#define HW_KEY_DEFAULT 1
#define IWL_STA_DRIVER_ACTIVE BIT(0) /* driver entry is active */
#define IWL_STA_UCODE_ACTIVE BIT(1) /* ucode entry is active */
#define IWL_STA_UCODE_INPROGRESS BIT(2) /* ucode entry is in process of
being activated */
/**
* iwl_find_station - Find station id for a given BSSID
* @bssid: MAC address of station ID to find
@ -51,18 +57,22 @@ void iwl_update_tkip_key(struct iwl_priv *priv,
struct ieee80211_key_conf *keyconf,
const u8 *addr, u32 iv32, u16 *phase1key);
int iwl_rxon_add_station(struct iwl_priv *priv, const u8 *addr, bool is_ap);
void iwl_add_bcast_station(struct iwl_priv *priv);
void iwl3945_add_bcast_station(struct iwl_priv *priv);
int iwl_remove_station(struct iwl_priv *priv, const u8 *addr, bool is_ap);
void iwl_clear_stations_table(struct iwl_priv *priv);
void iwl_restore_stations(struct iwl_priv *priv);
void iwl_clear_ucode_stations(struct iwl_priv *priv, bool force);
int iwl_get_free_ucode_key_index(struct iwl_priv *priv);
int iwl_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr);
int iwl_get_ra_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr);
int iwl_send_add_sta(struct iwl_priv *priv,
struct iwl_addsta_cmd *sta, u8 flags);
u8 iwl_add_station(struct iwl_priv *priv, const u8 *addr, bool is_ap, u8 flags,
struct ieee80211_sta_ht_cap *ht_info);
int iwl_add_local_station(struct iwl_priv *priv, const u8 *addr, bool init_rs);
int iwl_add_station_common(struct iwl_priv *priv, const u8 *addr,
bool is_ap,
struct ieee80211_sta_ht_cap *ht_info,
u8 *sta_id_r);
int iwl_mac_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_sta *sta);
void iwl_sta_tx_modify_enable_tid(struct iwl_priv *priv, int sta_id, int tid);
int iwl_sta_rx_agg_start(struct iwl_priv *priv,
const u8 *addr, int tid, u16 ssn);

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

@ -322,6 +322,8 @@ static int iwl_queue_init(struct iwl_priv *priv, struct iwl_queue *q,
q->high_mark = 2;
q->write_ptr = q->read_ptr = 0;
q->last_read_ptr = 0;
q->repeat_same_read_ptr = 0;
return 0;
}

72
drivers/net/wireless/iwlwifi/iwl3945-base.c
View File

@ -2480,8 +2480,6 @@ static void iwl3945_alive_start(struct iwl_priv *priv)
goto restart;
}
iwl_clear_stations_table(priv);
rfkill = iwl_read_prph(priv, APMG_RFKILL_REG);
IWL_DEBUG_INFO(priv, "RFKILL status: 0x%x\n", rfkill);
@ -2503,6 +2501,13 @@ static void iwl3945_alive_start(struct iwl_priv *priv)
/* After the ALIVE response, we can send commands to 3945 uCode */
set_bit(STATUS_ALIVE, &priv->status);
if (priv->cfg->ops->lib->recover_from_tx_stall) {
/* Enable timer to monitor the driver queues */
mod_timer(&priv->monitor_recover,
jiffies +
msecs_to_jiffies(priv->cfg->monitor_recover_period));
}
if (iwl_is_rfkill(priv))
return;
@ -2558,7 +2563,8 @@ static void __iwl3945_down(struct iwl_priv *priv)
if (!exit_pending)
set_bit(STATUS_EXIT_PENDING, &priv->status);
iwl_clear_stations_table(priv);
/* Station information will now be cleared in device */
iwl_clear_ucode_stations(priv, true);
/* Unblock any waiting calls */
wake_up_interruptible_all(&priv->wait_command_queue);
@ -2692,8 +2698,6 @@ static int __iwl3945_up(struct iwl_priv *priv)
for (i = 0; i < MAX_HW_RESTARTS; i++) {
iwl_clear_stations_table(priv);
/* load bootstrap state machine,
* load bootstrap program into processor's memory,
* prepare to load the "initialize" uCode */
@ -3119,12 +3123,13 @@ void iwl3945_post_associate(struct iwl_priv *priv)
case NL80211_IFTYPE_ADHOC:
priv->assoc_id = 1;
iwl_add_station(priv, priv->bssid, 0, CMD_SYNC, NULL);
iwl_add_local_station(priv, priv->bssid, false);
iwl3945_sync_sta(priv, IWL_STA_ID,
(priv->band == IEEE80211_BAND_5GHZ) ?
IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP,
(priv->band == IEEE80211_BAND_5GHZ) ?
IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP,
CMD_ASYNC);
iwl3945_rate_scale_init(priv->hw, IWL_STA_ID);
iwl3945_send_beacon_cmd(priv);
break;
@ -3309,7 +3314,7 @@ void iwl3945_config_ap(struct iwl_priv *priv)
/* restore RXON assoc */
priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
iwlcore_commit_rxon(priv);
iwl_add_station(priv, iwl_bcast_addr, 0, CMD_SYNC, NULL);
iwl_add_local_station(priv, iwl_bcast_addr, false);
}
iwl3945_send_beacon_cmd(priv);
@ -3376,6 +3381,38 @@ static int iwl3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
return ret;
}
static int iwl3945_mac_sta_add(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
struct iwl_priv *priv = hw->priv;
int ret;
bool is_ap = priv->iw_mode == NL80211_IFTYPE_STATION;
u8 sta_id;
IWL_DEBUG_INFO(priv, "received request to add station %pM\n",
sta->addr);
ret = iwl_add_station_common(priv, sta->addr, is_ap, &sta->ht_cap,
&sta_id);
if (ret) {
IWL_ERR(priv, "Unable to add station %pM (%d)\n",
sta->addr, ret);
/* Should we return success if return code is EEXIST ? */
return ret;
}
/* Initialize rate scaling */
IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM \n",
sta->addr);
iwl3945_rs_rate_init(priv, sta, sta_id);
return 0;
return ret;
}
/*****************************************************************************
*
* sysfs attributes
@ -3766,6 +3803,13 @@ static void iwl3945_setup_deferred_work(struct iwl_priv *priv)
iwl3945_hw_setup_deferred_work(priv);
if (priv->cfg->ops->lib->recover_from_tx_stall) {
init_timer(&priv->monitor_recover);
priv->monitor_recover.data = (unsigned long)priv;
priv->monitor_recover.function =
priv->cfg->ops->lib->recover_from_tx_stall;
}
tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
iwl3945_irq_tasklet, (unsigned long)priv);
}
@ -3778,6 +3822,8 @@ static void iwl3945_cancel_deferred_work(struct iwl_priv *priv)
cancel_delayed_work(&priv->scan_check);
cancel_delayed_work(&priv->alive_start);
cancel_work_sync(&priv->beacon_update);
if (priv->cfg->ops->lib->recover_from_tx_stall)
del_timer_sync(&priv->monitor_recover);
}
static struct attribute *iwl3945_sysfs_entries[] = {
@ -3815,7 +3861,9 @@ static struct ieee80211_ops iwl3945_hw_ops = {
.conf_tx = iwl_mac_conf_tx,
.reset_tsf = iwl_mac_reset_tsf,
.bss_info_changed = iwl_bss_info_changed,
.hw_scan = iwl_mac_hw_scan
.hw_scan = iwl_mac_hw_scan,
.sta_add = iwl3945_mac_sta_add,
.sta_remove = iwl_mac_sta_remove,
};
static int iwl3945_init_drv(struct iwl_priv *priv)
@ -3834,9 +3882,6 @@ static int iwl3945_init_drv(struct iwl_priv *priv)
mutex_init(&priv->mutex);
mutex_init(&priv->sync_cmd_mutex);
/* Clear the driver's (not device's) station table */
iwl_clear_stations_table(priv);
priv->ieee_channels = NULL;
priv->ieee_rates = NULL;
priv->band = IEEE80211_BAND_2GHZ;
@ -4196,7 +4241,6 @@ static void __devexit iwl3945_pci_remove(struct pci_dev *pdev)
iwl3945_hw_txq_ctx_free(priv);
iwl3945_unset_hw_params(priv);
iwl_clear_stations_table(priv);
/*netif_stop_queue(dev); */
flush_workqueue(priv->workqueue);