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iwlwifi: split adding broadcast station from others 

In preparation for some station management changes we split the addition of
a broadcast station from the other stations. Later we will rely on mac80211
to direct all management (addition/removal) of all stations except the
broadcast station.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Reinette Chatre 2009-10-30 14:36:12 -07:00 committed by John W. Linville
parent 89f186a8b6
commit 9a9ca65fbf
3 changed files with 65 additions and 6 deletions
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8
drivers/net/wireless/iwlwifi/iwl-agn.c
View File

@ -190,11 +190,7 @@ int iwl_commit_rxon(struct iwl_priv *priv)
priv->start_calib = 0;
/* Add the broadcast address so we can send broadcast frames */
if (iwl_rxon_add_station(priv, iwl_bcast_addr, 0) ==
IWL_INVALID_STATION) {
IWL_ERR(priv, "Error adding BROADCAST address for transmit.\n");
return -EIO;
}
iwl_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 */
@ -2524,7 +2520,7 @@ void iwl_config_ap(struct iwl_priv *priv)
spin_lock_irqsave(&priv->lock, flags);
iwl_activate_qos(priv, 1);
spin_unlock_irqrestore(&priv->lock, flags);
iwl_rxon_add_station(priv, iwl_bcast_addr, 0);
iwl_add_bcast_station(priv);
}
iwl_send_beacon_cmd(priv);

62
drivers/net/wireless/iwlwifi/iwl-sta.c
View File

@ -1029,6 +1029,68 @@ int iwl_rxon_add_station(struct iwl_priv *priv, const u8 *addr, bool is_ap)
}
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_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);
}
EXPORT_SYMBOL(iwl_add_bcast_station);
/**
* iwl_get_sta_id - Find station's index within station table
*

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

@ -52,6 +52,7 @@ void iwl_update_tkip_key(struct iwl_priv *priv,
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);
int iwl_remove_station(struct iwl_priv *priv, const u8 *addr, bool is_ap);
void iwl_clear_stations_table(struct iwl_priv *priv);
int iwl_get_free_ucode_key_index(struct iwl_priv *priv);