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mac80211: stop modifying HT SMPS capability

Browse Source 
Instead of modifying the HT SMPS capability field
for stations, track the SMPS mode explicitly in a
new field in the station struct and use it in the
drivers that care about it. This simplifies the
code using it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2013-02-12 14:21:00 +01:00
parent 9fb04b501a
commit af0ed69bad
11 changed files with 50 additions and 48 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/net/wireless/iwlegacy/4965-rs.c
View File

@ -1183,8 +1183,7 @@ il4965_rs_switch_to_mimo2(struct il_priv *il, struct il_lq_sta *lq_sta,
if (!conf_is_ht(conf) || !sta->ht_cap.ht_supported)
return -1;
if (((sta->ht_cap.cap & IEEE80211_HT_CAP_SM_PS) >> 2) ==
WLAN_HT_CAP_SM_PS_STATIC)
if (sta->smps_mode == IEEE80211_SMPS_STATIC)
return -1;
/* Need both Tx chains/antennas to support MIMO */

16
drivers/net/wireless/iwlegacy/common.c
View File

@ -1830,32 +1830,30 @@ il_set_ht_add_station(struct il_priv *il, u8 idx, struct ieee80211_sta *sta)
{
struct ieee80211_sta_ht_cap *sta_ht_inf = &sta->ht_cap;
__le32 sta_flags;
u8 mimo_ps_mode;
if (!sta || !sta_ht_inf->ht_supported)
goto done;
mimo_ps_mode = (sta_ht_inf->cap & IEEE80211_HT_CAP_SM_PS) >> 2;
D_ASSOC("spatial multiplexing power save mode: %s\n",
(mimo_ps_mode == WLAN_HT_CAP_SM_PS_STATIC) ? "static" :
(mimo_ps_mode == WLAN_HT_CAP_SM_PS_DYNAMIC) ? "dynamic" :
(sta->smps_mode == IEEE80211_SMPS_STATIC) ? "static" :
(sta->smps_mode == IEEE80211_SMPS_DYNAMIC) ? "dynamic" :
"disabled");
sta_flags = il->stations[idx].sta.station_flags;
sta_flags &= ~(STA_FLG_RTS_MIMO_PROT_MSK | STA_FLG_MIMO_DIS_MSK);
switch (mimo_ps_mode) {
case WLAN_HT_CAP_SM_PS_STATIC:
switch (sta->smps_mode) {
case IEEE80211_SMPS_STATIC:
sta_flags |= STA_FLG_MIMO_DIS_MSK;
break;
case WLAN_HT_CAP_SM_PS_DYNAMIC:
case IEEE80211_SMPS_DYNAMIC:
sta_flags |= STA_FLG_RTS_MIMO_PROT_MSK;
break;
case WLAN_HT_CAP_SM_PS_DISABLED:
case IEEE80211_SMPS_OFF:
break;
default:
IL_WARN("Invalid MIMO PS mode %d\n", mimo_ps_mode);
IL_WARN("Invalid MIMO PS mode %d\n", sta->smps_mode);
break;
}

6
drivers/net/wireless/iwlwifi/dvm/rs.c
View File

@ -1289,8 +1289,7 @@ static int rs_switch_to_mimo2(struct iwl_priv *priv,
if (!conf_is_ht(conf) || !sta->ht_cap.ht_supported)
return -1;
if (((sta->ht_cap.cap & IEEE80211_HT_CAP_SM_PS) >> 2)
== WLAN_HT_CAP_SM_PS_STATIC)
if (sta->smps_mode == IEEE80211_SMPS_STATIC)
return -1;
/* Need both Tx chains/antennas to support MIMO */
@ -1345,8 +1344,7 @@ static int rs_switch_to_mimo3(struct iwl_priv *priv,
if (!conf_is_ht(conf) || !sta->ht_cap.ht_supported)
return -1;
if (((sta->ht_cap.cap & IEEE80211_HT_CAP_SM_PS) >> 2)
== WLAN_HT_CAP_SM_PS_STATIC)
if (sta->smps_mode == IEEE80211_SMPS_STATIC)
return -1;
/* Need both Tx chains/antennas to support MIMO */

17
drivers/net/wireless/iwlwifi/dvm/sta.c
View File

@ -196,7 +196,6 @@ static void iwl_sta_calc_ht_flags(struct iwl_priv *priv,
__le32 *flags, __le32 *mask)
{
struct ieee80211_sta_ht_cap *sta_ht_inf = &sta->ht_cap;
u8 mimo_ps_mode;
*mask = STA_FLG_RTS_MIMO_PROT_MSK |
STA_FLG_MIMO_DIS_MSK |
@ -208,26 +207,24 @@ static void iwl_sta_calc_ht_flags(struct iwl_priv *priv,
if (!sta || !sta_ht_inf->ht_supported)
return;
mimo_ps_mode = (sta_ht_inf->cap & IEEE80211_HT_CAP_SM_PS) >> 2;
IWL_DEBUG_INFO(priv, "STA %pM SM PS mode: %s\n",
sta->addr,
(mimo_ps_mode == WLAN_HT_CAP_SM_PS_STATIC) ?
(sta->smps_mode == IEEE80211_SMPS_STATIC) ?
"static" :
(mimo_ps_mode == WLAN_HT_CAP_SM_PS_DYNAMIC) ?
(sta->smps_mode == IEEE80211_SMPS_DYNAMIC) ?
"dynamic" : "disabled");
switch (mimo_ps_mode) {
case WLAN_HT_CAP_SM_PS_STATIC:
switch (sta->smps_mode) {
case IEEE80211_SMPS_STATIC:
*flags |= STA_FLG_MIMO_DIS_MSK;
break;
case WLAN_HT_CAP_SM_PS_DYNAMIC:
case IEEE80211_SMPS_DYNAMIC:
*flags |= STA_FLG_RTS_MIMO_PROT_MSK;
break;
case WLAN_HT_CAP_SM_PS_DISABLED:
case IEEE80211_SMPS_OFF:
break;
default:
IWL_WARN(priv, "Invalid MIMO PS mode %d\n", mimo_ps_mode);
IWL_WARN(priv, "Invalid MIMO PS mode %d\n", sta->smps_mode);
break;
}

6
drivers/net/wireless/iwlwifi/mvm/rs.c
View File

@ -1229,8 +1229,7 @@ static int rs_switch_to_mimo2(struct iwl_mvm *mvm,
if (!sta->ht_cap.ht_supported)
return -1;
if (((sta->ht_cap.cap & IEEE80211_HT_CAP_SM_PS) >> 2)
== WLAN_HT_CAP_SM_PS_STATIC)
if (sta->smps_mode == IEEE80211_SMPS_STATIC)
return -1;
/* Need both Tx chains/antennas to support MIMO */
@ -1282,8 +1281,7 @@ static int rs_switch_to_mimo3(struct iwl_mvm *mvm,
if (!sta->ht_cap.ht_supported)
return -1;
if (((sta->ht_cap.cap & IEEE80211_HT_CAP_SM_PS) >> 2)
== WLAN_HT_CAP_SM_PS_STATIC)
if (sta->smps_mode == IEEE80211_SMPS_STATIC)
return -1;
/* Need both Tx chains/antennas to support MIMO */

5
drivers/net/wireless/rt2x00/rt2x00queue.c
View File

@ -343,10 +343,7 @@ static void rt2x00queue_create_tx_descriptor_ht(struct rt2x00_dev *rt2x00dev,
* when using more then one tx stream (>MCS7).
*/
if (sta && txdesc->u.ht.mcs > 7 &&
((sta->ht_cap.cap &
IEEE80211_HT_CAP_SM_PS) >>
IEEE80211_HT_CAP_SM_PS_SHIFT) ==
WLAN_HT_CAP_SM_PS_DYNAMIC)
sta->smps_mode == IEEE80211_SMPS_DYNAMIC)
__set_bit(ENTRY_TXD_HT_MIMO_PS, &txdesc->flags);
} else {
txdesc->u.ht.mcs = rt2x00_get_rate_mcs(hwrate->mcs);

2
include/net/mac80211.h
View File

@ -1245,6 +1245,7 @@ enum ieee80211_sta_rx_bandwidth {
* station can receive at the moment, changed by operating mode
* notifications and capabilities. The value is only valid after
* the station moves to associated state.
* @smps_mode: current SMPS mode (off, static or dynamic)
*/
struct ieee80211_sta {
u32 supp_rates[IEEE80211_NUM_BANDS];
@ -1257,6 +1258,7 @@ struct ieee80211_sta {
u8 max_sp;
u8 rx_nss;
enum ieee80211_sta_rx_bandwidth bandwidth;
enum ieee80211_smps_mode smps_mode;
/* must be last */
u8 drv_priv[0] __aligned(sizeof(void *));

19
net/mac80211/ht.c
View File

@ -102,6 +102,7 @@ bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
int i, max_tx_streams;
bool changed;
enum ieee80211_sta_rx_bandwidth bw;
enum ieee80211_smps_mode smps_mode;
memset(&ht_cap, 0, sizeof(ht_cap));
@ -216,6 +217,24 @@ bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 ?
IEEE80211_STA_RX_BW_40 : IEEE80211_STA_RX_BW_20;
switch ((ht_cap.cap & IEEE80211_HT_CAP_SM_PS)
>> IEEE80211_HT_CAP_SM_PS_SHIFT) {
case WLAN_HT_CAP_SM_PS_INVALID:
case WLAN_HT_CAP_SM_PS_STATIC:
smps_mode = IEEE80211_SMPS_STATIC;
break;
case WLAN_HT_CAP_SM_PS_DYNAMIC:
smps_mode = IEEE80211_SMPS_DYNAMIC;
break;
case WLAN_HT_CAP_SM_PS_DISABLED:
smps_mode = IEEE80211_SMPS_OFF;
break;
}
if (smps_mode != sta->sta.smps_mode)
changed = true;
sta->sta.smps_mode = smps_mode;
return changed;
}

6
net/mac80211/rc80211_minstrel_ht.c
View File

@ -808,7 +808,6 @@ minstrel_ht_update_caps(void *priv, struct ieee80211_supported_band *sband,
int ack_dur;
int stbc;
int i;
unsigned int smps;
/* fall back to the old minstrel for legacy stations */
if (!sta->ht_cap.ht_supported)
@ -844,9 +843,6 @@ minstrel_ht_update_caps(void *priv, struct ieee80211_supported_band *sband,
if (sta_cap & IEEE80211_HT_CAP_LDPC_CODING)
mi->tx_flags |= IEEE80211_TX_CTL_LDPC;
smps = (sta_cap & IEEE80211_HT_CAP_SM_PS) >>
IEEE80211_HT_CAP_SM_PS_SHIFT;
for (i = 0; i < ARRAY_SIZE(mi->groups); i++) {
mi->groups[i].supported = 0;
if (i == MINSTREL_CCK_GROUP) {
@ -869,7 +865,7 @@ minstrel_ht_update_caps(void *priv, struct ieee80211_supported_band *sband,
continue;
/* Mark MCS > 7 as unsupported if STA is in static SMPS mode */
if (smps == WLAN_HT_CAP_SM_PS_STATIC &&
if (sta->smps_mode == IEEE80211_SMPS_STATIC &&
minstrel_mcs_groups[i].streams > 1)
continue;

16
net/mac80211/rx.c
View File

@ -2375,31 +2375,27 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
switch (mgmt->u.action.u.ht_smps.action) {
case WLAN_HT_ACTION_SMPS: {
struct ieee80211_supported_band *sband;
u8 smps;
enum ieee80211_smps_mode smps_mode;
/* convert to HT capability */
switch (mgmt->u.action.u.ht_smps.smps_control) {
case WLAN_HT_SMPS_CONTROL_DISABLED:
smps = WLAN_HT_CAP_SM_PS_DISABLED;
smps_mode = IEEE80211_SMPS_OFF;
break;
case WLAN_HT_SMPS_CONTROL_STATIC:
smps = WLAN_HT_CAP_SM_PS_STATIC;
smps_mode = IEEE80211_SMPS_STATIC;
break;
case WLAN_HT_SMPS_CONTROL_DYNAMIC:
smps = WLAN_HT_CAP_SM_PS_DYNAMIC;
smps_mode = IEEE80211_SMPS_DYNAMIC;
break;
default:
goto invalid;
}
smps <<= IEEE80211_HT_CAP_SM_PS_SHIFT;
/* if no change do nothing */
if ((rx->sta->sta.ht_cap.cap &
IEEE80211_HT_CAP_SM_PS) == smps)
if (rx->sta->sta.smps_mode == smps_mode)
goto handled;
rx->sta->sta.ht_cap.cap &= ~IEEE80211_HT_CAP_SM_PS;
rx->sta->sta.ht_cap.cap |= smps;
rx->sta->sta.smps_mode = smps_mode;
sband = rx->local->hw.wiphy->bands[status->band];

2
net/mac80211/sta_info.c
View File

@ -375,6 +375,8 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
for (i = 0; i < IEEE80211_NUM_TIDS; i++)
sta->last_seq_ctrl[i] = cpu_to_le16(USHRT_MAX);
sta->sta.smps_mode = IEEE80211_SMPS_OFF;
sta_dbg(sdata, "Allocated STA %pM\n", sta->sta.addr);
return sta;