Commit 4f40e4d9 authored by Tomas Winkler's avatar Tomas Winkler Committed by John W. Linville

iwlwifi: move more station managment into iwl-sta.c

This patch moves station management functions into iwl-sta.c (iwlcore).
Signed-off-by: default avatarTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 57bd1bea
......@@ -2150,7 +2150,7 @@ static void rs_get_rate(void *priv_rate, struct net_device *dev,
if (sta_id == IWL_INVALID_STATION) {
IWL_DEBUG_RATE("LQ: ADD station %s\n",
print_mac(mac, hdr->addr1));
sta_id = iwl4965_add_station_flags(priv, hdr->addr1,
sta_id = iwl_add_station_flags(priv, hdr->addr1,
0, CMD_ASYNC, NULL);
}
if ((sta_id != IWL_INVALID_STATION)) {
......@@ -2234,7 +2234,7 @@ static void rs_rate_init(void *priv_rate, void *priv_sta,
if (sta_id == IWL_INVALID_STATION) {
IWL_DEBUG_RATE("LQ: ADD station %s\n",
print_mac(mac, sta->addr));
sta_id = iwl4965_add_station_flags(priv, sta->addr,
sta_id = iwl_add_station_flags(priv, sta->addr,
0, CMD_ASYNC, NULL);
}
if ((sta_id != IWL_INVALID_STATION)) {
......
......@@ -3433,109 +3433,8 @@ static int iwl4965_tx_queue_agg_enable(struct iwl_priv *priv, int txq_id,
#endif /* CONFIG_IWL4965_HT */
/**
* iwl4965_add_station - 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-4965-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).
*/
void iwl4965_add_station(struct iwl_priv *priv, const u8 *addr, int is_ap)
{
int i, r;
struct iwl_link_quality_cmd link_cmd = {
.reserved1 = 0,
};
u16 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;
/* Use Tx antenna B only */
rate_flags |= RATE_MCS_ANT_B_MSK; /*FIXME:RS*/
link_cmd.rs_table[i].rate_n_flags =
iwl4965_hw_set_rate_n_flags(iwl_rates[r].plcp, rate_flags);
r = iwl4965_get_prev_ieee_rate(r);
}
link_cmd.general_params.single_stream_ant_msk = 2;
link_cmd.general_params.dual_stream_ant_msk = 3;
link_cmd.agg_params.agg_dis_start_th = 3;
link_cmd.agg_params.agg_time_limit = cpu_to_le16(4000);
/* 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);
}
#ifdef CONFIG_IWL4965_HT
void iwl4965_set_ht_add_station(struct iwl_priv *priv, u8 index,
struct ieee80211_ht_info *sta_ht_inf)
{
__le32 sta_flags;
u8 mimo_ps_mode;
if (!sta_ht_inf || !sta_ht_inf->ht_supported)
goto done;
mimo_ps_mode = (sta_ht_inf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2;
sta_flags = priv->stations[index].sta.station_flags;
sta_flags &= ~(STA_FLG_RTS_MIMO_PROT_MSK | STA_FLG_MIMO_DIS_MSK);
switch (mimo_ps_mode) {
case WLAN_HT_CAP_MIMO_PS_STATIC:
sta_flags |= STA_FLG_MIMO_DIS_MSK;
break;
case WLAN_HT_CAP_MIMO_PS_DYNAMIC:
sta_flags |= STA_FLG_RTS_MIMO_PROT_MSK;
break;
case WLAN_HT_CAP_MIMO_PS_DISABLED:
break;
default:
IWL_WARNING("Invalid MIMO PS mode %d", mimo_ps_mode);
break;
}
sta_flags |= cpu_to_le32(
(u32)sta_ht_inf->ampdu_factor << STA_FLG_MAX_AGG_SIZE_POS);
sta_flags |= cpu_to_le32(
(u32)sta_ht_inf->ampdu_density << STA_FLG_AGG_MPDU_DENSITY_POS);
if (iwl_is_fat_tx_allowed(priv, sta_ht_inf))
sta_flags |= STA_FLG_FAT_EN_MSK;
else
sta_flags &= ~STA_FLG_FAT_EN_MSK;
priv->stations[index].sta.station_flags = sta_flags;
done:
return;
}
static int iwl4965_rx_agg_start(struct iwl_priv *priv,
const u8 *addr, int tid, u16 ssn)
{
......
......@@ -635,8 +635,8 @@ struct iwl_hw_params {
struct iwl_addsta_cmd;
extern int iwl_send_add_sta(struct iwl_priv *priv,
struct iwl_addsta_cmd *sta, u8 flags);
extern u8 iwl4965_add_station_flags(struct iwl_priv *priv, const u8 *addr,
int is_ap, u8 flags, void *ht_data);
u8 iwl_add_station_flags(struct iwl_priv *priv, const u8 *addr, int is_ap,
u8 flags, struct ieee80211_ht_info *ht_info);
extern int iwl4965_is_network_packet(struct iwl_priv *priv,
struct ieee80211_hdr *header);
extern int iwl4965_power_init_handle(struct iwl_priv *priv);
......@@ -731,8 +731,6 @@ extern void iwl4965_radio_kill_sw(struct iwl_priv *priv, int disable_radio);
extern int iwl4965_tx_queue_update_wr_ptr(struct iwl_priv *priv,
struct iwl_tx_queue *txq,
u16 byte_cnt);
extern void iwl4965_add_station(struct iwl_priv *priv, const u8 *addr,
int is_ap);
extern int iwl4965_alive_notify(struct iwl_priv *priv);
extern void iwl4965_update_rate_scaling(struct iwl_priv *priv, u8 mode);
extern void iwl4965_rf_kill_ct_config(struct iwl_priv *priv);
......@@ -746,8 +744,6 @@ extern void iwl4965_init_ht_hw_capab(const struct iwl_priv *priv,
enum ieee80211_band band);
void iwl4965_set_rxon_ht(struct iwl_priv *priv,
struct iwl_ht_info *ht_info);
void iwl4965_set_ht_add_station(struct iwl_priv *priv, u8 index,
struct ieee80211_ht_info *sta_ht_inf);
int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw,
enum ieee80211_ampdu_mlme_action action,
const u8 *addr, u16 tid, u16 *ssn);
......
......@@ -117,6 +117,130 @@ int iwl_send_add_sta(struct iwl_priv *priv,
}
EXPORT_SYMBOL(iwl_send_add_sta);
#ifdef CONFIG_IWL4965_HT
static void iwl_set_ht_add_station(struct iwl_priv *priv, u8 index,
struct ieee80211_ht_info *sta_ht_inf)
{
__le32 sta_flags;
u8 mimo_ps_mode;
if (!sta_ht_inf || !sta_ht_inf->ht_supported)
goto done;
mimo_ps_mode = (sta_ht_inf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2;
sta_flags = priv->stations[index].sta.station_flags;
sta_flags &= ~(STA_FLG_RTS_MIMO_PROT_MSK | STA_FLG_MIMO_DIS_MSK);
switch (mimo_ps_mode) {
case WLAN_HT_CAP_MIMO_PS_STATIC:
sta_flags |= STA_FLG_MIMO_DIS_MSK;
break;
case WLAN_HT_CAP_MIMO_PS_DYNAMIC:
sta_flags |= STA_FLG_RTS_MIMO_PROT_MSK;
break;
case WLAN_HT_CAP_MIMO_PS_DISABLED:
break;
default:
IWL_WARNING("Invalid MIMO PS mode %d", mimo_ps_mode);
break;
}
sta_flags |= cpu_to_le32(
(u32)sta_ht_inf->ampdu_factor << STA_FLG_MAX_AGG_SIZE_POS);
sta_flags |= cpu_to_le32(
(u32)sta_ht_inf->ampdu_density << STA_FLG_AGG_MPDU_DENSITY_POS);
if (iwl_is_fat_tx_allowed(priv, sta_ht_inf))
sta_flags |= STA_FLG_FAT_EN_MSK;
else
sta_flags &= ~STA_FLG_FAT_EN_MSK;
priv->stations[index].sta.station_flags = sta_flags;
done:
return;
}
#else
static inline void iwl_set_ht_add_station(struct iwl_priv *priv, u8 index,
struct ieee80211_ht_info *sta_ht_info)
{
}
#endif
/**
* iwl_add_station_flags - Add station to tables in driver and device
*/
u8 iwl_add_station_flags(struct iwl_priv *priv, const u8 *addr, int is_ap,
u8 flags, struct ieee80211_ht_info *ht_info)
{
int i;
int index = IWL_INVALID_STATION;
struct iwl_station_entry *station;
unsigned long flags_spin;
DECLARE_MAC_BUF(mac);
spin_lock_irqsave(&priv->sta_lock, flags_spin);
if (is_ap)
index = IWL_AP_ID;
else if (is_broadcast_ether_addr(addr))
index = priv->hw_params.bcast_sta_id;
else
for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++) {
if (!compare_ether_addr(priv->stations[i].sta.sta.addr,
addr)) {
index = i;
break;
}
if (!priv->stations[i].used &&
index == IWL_INVALID_STATION)
index = i;
}
/* These two conditions have the same outcome, but keep them separate
since they have different meanings */
if (unlikely(index == IWL_INVALID_STATION)) {
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
return index;
}
if (priv->stations[index].used &&
!compare_ether_addr(priv->stations[index].sta.sta.addr, addr)) {
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
return index;
}
IWL_DEBUG_ASSOC("Add STA ID %d: %s\n", index, print_mac(mac, addr));
station = &priv->stations[index];
station->used = 1;
priv->num_stations++;
/* Set up the REPLY_ADD_STA command to send to device */
memset(&station->sta, 0, sizeof(struct iwl_addsta_cmd));
memcpy(station->sta.sta.addr, addr, ETH_ALEN);
station->sta.mode = 0;
station->sta.sta.sta_id = index;
station->sta.station_flags = 0;
/* BCAST station and IBSS stations do not work in HT mode */
if (index != priv->hw_params.bcast_sta_id &&
priv->iw_mode != IEEE80211_IF_TYPE_IBSS)
iwl_set_ht_add_station(priv, index, ht_info);
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
/* Add station to device's station table */
iwl_send_add_sta(priv, &station->sta, flags);
return index;
}
EXPORT_SYMBOL(iwl_add_station_flags);
int iwl_get_free_ucode_key_index(struct iwl_priv *priv)
{
int i;
......@@ -470,3 +594,148 @@ int iwl_send_lq_cmd(struct iwl_priv *priv,
}
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-4965-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, int is_ap)
{
int i, r;
struct iwl_link_quality_cmd link_cmd = {
.reserved1 = 0,
};
u16 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;
/* Use Tx antenna B only */
rate_flags |= RATE_MCS_ANT_B_MSK; /*FIXME:RS*/
link_cmd.rs_table[i].rate_n_flags =
iwl4965_hw_set_rate_n_flags(iwl_rates[r].plcp, rate_flags);
r = iwl4965_get_prev_ieee_rate(r);
}
link_cmd.general_params.single_stream_ant_msk = 2;
link_cmd.general_params.dual_stream_ant_msk = 3;
link_cmd.agg_params.agg_dis_start_th = 3;
link_cmd.agg_params.agg_time_limit = cpu_to_le16(4000);
/* 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 fnction
*/
int iwl_rxon_add_station(struct iwl_priv *priv, const u8 *addr, int is_ap)
{
u8 sta_id;
/* Add station to device's station table */
#ifdef CONFIG_IWL4965_HT
struct ieee80211_conf *conf = &priv->hw->conf;
struct ieee80211_ht_info *cur_ht_config = &conf->ht_conf;
if ((is_ap) &&
(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) &&
(priv->iw_mode == IEEE80211_IF_TYPE_STA))
sta_id = iwl_add_station_flags(priv, addr, is_ap,
0, cur_ht_config);
else
#endif /* CONFIG_IWL4965_HT */
sta_id = iwl_add_station_flags(priv, addr, is_ap,
0, NULL);
/* 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_get_sta_id - Find station's index within station table
*
* If new IBSS station, create new entry in station table
*/
int iwl_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr)
{
int sta_id;
u16 fc = le16_to_cpu(hdr->frame_control);
DECLARE_MAC_BUF(mac);
/* If this frame is broadcast or management, use broadcast station id */
if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) ||
is_multicast_ether_addr(hdr->addr1))
return priv->hw_params.bcast_sta_id;
switch (priv->iw_mode) {
/* 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 IEEE80211_IF_TYPE_STA:
return IWL_AP_ID;
/* If we are an AP, then find the station, or use BCAST */
case IEEE80211_IF_TYPE_AP:
sta_id = iwl_find_station(priv, hdr->addr1);
if (sta_id != IWL_INVALID_STATION)
return sta_id;
return priv->hw_params.bcast_sta_id;
/* If this frame is going out to an IBSS network, find the station,
* or create a new station table entry */
case IEEE80211_IF_TYPE_IBSS:
sta_id = iwl_find_station(priv, hdr->addr1);
if (sta_id != IWL_INVALID_STATION)
return sta_id;
/* Create new station table entry */
sta_id = iwl_add_station_flags(priv, hdr->addr1,
0, CMD_ASYNC, NULL);
if (sta_id != IWL_INVALID_STATION)
return sta_id;
IWL_DEBUG_DROP("Station %s not in station map. "
"Defaulting to broadcast...\n",
print_mac(mac, hdr->addr1));
iwl_print_hex_dump(priv, IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr));
return priv->hw_params.bcast_sta_id;
default:
IWL_WARNING("Unknown mode of operation: %d", priv->iw_mode);
return priv->hw_params.bcast_sta_id;
}
}
EXPORT_SYMBOL(iwl_get_sta_id);
......@@ -39,4 +39,6 @@ int iwl_set_dynamic_key(struct iwl_priv *priv,
struct ieee80211_key_conf *key, u8 sta_id);
int iwl_remove_dynamic_key(struct iwl_priv *priv,
struct ieee80211_key_conf *key, u8 sta_id);
int iwl_rxon_add_station(struct iwl_priv *priv, const u8 *addr, int is_ap);
int iwl_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr);
#endif /* __iwl_sta_h__ */
......@@ -258,79 +258,6 @@ out:
}
#endif
/**
* iwl4965_add_station_flags - Add station to tables in driver and device
*/
u8 iwl4965_add_station_flags(struct iwl_priv *priv, const u8 *addr,
int is_ap, u8 flags, void *ht_data)
{
int i;
int index = IWL_INVALID_STATION;
struct iwl_station_entry *station;
unsigned long flags_spin;
DECLARE_MAC_BUF(mac);
spin_lock_irqsave(&priv->sta_lock, flags_spin);
if (is_ap)
index = IWL_AP_ID;
else if (is_broadcast_ether_addr(addr))
index = priv->hw_params.bcast_sta_id;
else
for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++) {
if (!compare_ether_addr(priv->stations[i].sta.sta.addr,
addr)) {
index = i;
break;
}
if (!priv->stations[i].used &&
index == IWL_INVALID_STATION)
index = i;
}
/* These two conditions have the same outcome, but keep them separate
since they have different meanings */
if (unlikely(index == IWL_INVALID_STATION)) {
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
return index;
}
if (priv->stations[index].used &&
!compare_ether_addr(priv->stations[index].sta.sta.addr, addr)) {
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
return index;
}
IWL_DEBUG_ASSOC("Add STA ID %d: %s\n", index, print_mac(mac, addr));
station = &priv->stations[index];
station->used = 1;
priv->num_stations++;
/* Set up the REPLY_ADD_STA command to send to device */
memset(&station->sta, 0, sizeof(struct iwl_addsta_cmd));
memcpy(station->sta.sta.addr, addr, ETH_ALEN);
station->sta.mode = 0;
station->sta.sta.sta_id = index;
station->sta.station_flags = 0;
#ifdef CONFIG_IWL4965_HT
/* BCAST station and IBSS stations do not work in HT mode */
if (index != priv->hw_params.bcast_sta_id &&
priv->iw_mode != IEEE80211_IF_TYPE_IBSS)
iwl4965_set_ht_add_station(priv, index,
(struct ieee80211_ht_info *) ht_data);
#endif /*CONFIG_IWL4965_HT*/
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
/* Add station to device's station table */
iwl_send_add_sta(priv, &station->sta, flags);
return index;
}
/*************** HOST COMMAND QUEUE FUNCTIONS *****/
......@@ -433,38 +360,6 @@ static void iwl4965_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt)
}
/**
* iwl4965_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 fnction
*/
static int iwl4965_rxon_add_station(struct iwl_priv *priv,
const u8 *addr, int is_ap)
{
u8 sta_id;
/* Add station to device's station table */
#ifdef CONFIG_IWL4965_HT
struct ieee80211_conf *conf = &priv->hw->conf;
struct ieee80211_ht_info *cur_ht_config = &conf->ht_conf;
if ((is_ap) &&
(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) &&
(priv->iw_mode == IEEE80211_IF_TYPE_STA))
sta_id = iwl4965_add_station_flags(priv, addr, is_ap,
0, cur_ht_config);
else
#endif /* CONFIG_IWL4965_HT */
sta_id = iwl4965_add_station_flags(priv, addr, is_ap,
0, NULL);
/* Set up default rate scaling table in device's station table */
iwl4965_add_station(priv, addr, is_ap);
return sta_id;
}
/**
* iwl4965_check_rxon_cmd - validate RXON structure is valid
*
......@@ -691,7 +586,7 @@ static int iwl4965_commit_rxon(struct iwl_priv *priv)
}
/* Add the broadcast address so we can send broadcast frames */
if (iwl4965_rxon_add_station(priv, iwl_bcast_addr, 0) ==
if (iwl_rxon_add_station(priv, iwl_bcast_addr, 0) ==
IWL_INVALID_STATION) {
IWL_ERROR("Error adding BROADCAST address for transmit.\n");
return -EIO;
......@@ -701,7 +596,7 @@ static int iwl4965_commit_rxon(struct iwl_priv *priv)
* add the IWL_AP_ID to the station rate table */
if (iwl_is_associated(priv) &&
(priv->iw_mode == IEEE80211_IF_TYPE_STA)) {
if (iwl4965_rxon_add_station(priv, priv->active_rxon.bssid_addr, 1)
if (iwl_rxon_add_station(priv, priv->active_rxon.bssid_addr, 1)
== IWL_INVALID_STATION) {
IWL_ERROR("Error adding AP address for transmit.\n");
return -EIO;
......@@ -1702,63 +1597,6 @@ static void iwl_update_tx_stats(struct iwl_priv *priv, u16 fc, u16 len)
priv->tx_stats[idx].cnt++;
priv->tx_stats[idx].bytes += len;
}
/**
* iwl4965_get_sta_id - Find station's index within station table
*
* If new IBSS station, create new entry in station table
*/
static int iwl4965_get_sta_id(struct iwl_priv *priv,
struct ieee80211_hdr *hdr)
{
int sta_id;
u16 fc = le16_to_cpu(hdr->frame_control);
DECLARE_MAC_BUF(mac);
/* If this frame is broadcast or management, use broadcast station id */
if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) ||
is_multicast_ether_addr(hdr->addr1))
return priv->hw_params.bcast_sta_id;
switch (priv->iw_mode) {
/* If we are a client station in a BSS network, use the special