This allows dynamic changes of bandwidth/nss/smps,
e.g. via ht/vht operation mode change
notification.
Signed-off-by: Michal Kazior <michal.kazior@xxxxxxxxx>
---
v2:
* fix memset(&arsta, ...) -> memset(arsta, ...)
drivers/net/wireless/ath/ath10k/core.h | 11 +++
drivers/net/wireless/ath/ath10k/mac.c | 149 +++++++++++++++++++++++++++++++++
drivers/net/wireless/ath/ath10k/wmi.h | 6 ++
3 files changed, 166 insertions(+)
diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index c0b00e1..147348a 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -228,6 +228,17 @@ struct ath10k_peer {
struct ieee80211_key_conf *keys[WMI_MAX_KEY_INDEX + 1];
};
+struct ath10k_sta {
+ struct ath10k_vif *arvif;
+
+ u32 changed; /* IEEE80211_RC_* */
+ u32 bw;
+ u32 nss;
+ u32 smps;
+
+ struct work_struct update_wk;
+};
+
#define ATH10K_VDEV_SETUP_TIMEOUT_HZ (5*HZ)
struct ath10k_vif {
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 144b4d6..ecc06b08 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -3056,6 +3056,69 @@ exit:
return ret;
}
+static void ath10k_sta_rc_update_wk(struct work_struct *wk)
+{
+ struct ath10k *ar;
+ struct ath10k_vif *arvif;
+ struct ath10k_sta *arsta;
+ struct ieee80211_sta *sta;
+ u32 changed, bw, nss, smps;
+ int err;
+
+ arsta = container_of(wk, struct ath10k_sta, update_wk);
+ sta = container_of((void *)arsta, struct ieee80211_sta, drv_priv);
+ arvif = arsta->arvif;
+ ar = arvif->ar;
+
+ spin_lock_bh(&ar->data_lock);
+
+ changed = arsta->changed;
+ arsta->changed = 0;
+
+ bw = arsta->bw;
+ nss = arsta->nss;
+ smps = arsta->smps;
+
+ spin_unlock_bh(&ar->data_lock);
+
+ mutex_lock(&ar->conf_mutex);
+
+ if (changed & IEEE80211_RC_BW_CHANGED) {
+ ath10k_dbg(ATH10K_DBG_MAC, "mac update sta %pM peer bw %d\n",
+ sta->addr, bw);
+
+ err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
+ WMI_PEER_CHAN_WIDTH, bw);
+ if (err)
+ ath10k_warn("failed to update STA %pM peer bw %d: %d\n",
+ sta->addr, bw, err);
+ }
+
+ if (changed & IEEE80211_RC_NSS_CHANGED) {
+ ath10k_dbg(ATH10K_DBG_MAC, "mac update sta %pM nss %d\n",
+ sta->addr, nss);
+
+ err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
+ WMI_PEER_NSS, nss);
+ if (err)
+ ath10k_warn("failed to update STA %pM nss %d: %d\n",
+ sta->addr, nss, err);
+ }
+
+ if (changed & IEEE80211_RC_SMPS_CHANGED) {
+ ath10k_dbg(ATH10K_DBG_MAC, "mac update sta %pM smps %d\n",
+ sta->addr, smps);
+
+ err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
+ WMI_PEER_SMPS_STATE, smps);
+ if (err)
+ ath10k_warn("failed to update STA %pM smps %d: %d\n",
+ sta->addr, smps, err);
+ }
+
+ mutex_unlock(&ar->conf_mutex);
+}
+
static int ath10k_sta_state(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
@@ -3064,9 +3127,15 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
{
struct ath10k *ar = hw->priv;
struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+ struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
int max_num_peers;
int ret = 0;
+ /* cancel must be done outside the mutex to avoid deadlock */
+ if ((old_state == IEEE80211_STA_NONE &&
+ new_state == IEEE80211_STA_NOTEXIST))
+ cancel_work_sync(&arsta->update_wk);
+
mutex_lock(&ar->conf_mutex);
if (old_state == IEEE80211_STA_NOTEXIST &&
@@ -3091,6 +3160,10 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
"mac vdev %d peer create %pM (new sta) num_peers %d\n",
arvif->vdev_id, sta->addr, ar->num_peers);
+ memset(arsta, 0, sizeof(*arsta));
+ arsta->arvif = arvif;
+ INIT_WORK(&arsta->update_wk, ath10k_sta_rc_update_wk);
+
ret = ath10k_peer_create(ar, arvif->vdev_id, sta->addr);
if (ret)
ath10k_warn("Failed to add peer %pM for vdev %d when adding a new sta: %i\n",
@@ -3854,6 +3927,80 @@ static void ath10k_channel_switch_beacon(struct ieee80211_hw *hw,
return;
}
+static void ath10k_sta_rc_update(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta,
+ u32 changed)
+{
+ struct ath10k *ar = hw->priv;
+ struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
+ u32 bw, smps;
+
+ spin_lock_bh(&ar->data_lock);
+
+ if (changed & IEEE80211_RC_BW_CHANGED) {
+ bw = WMI_PEER_CHWIDTH_20MHZ;
+
+ switch (sta->bandwidth) {
+ case IEEE80211_STA_RX_BW_20:
+ bw = WMI_PEER_CHWIDTH_20MHZ;
+ break;
+ case IEEE80211_STA_RX_BW_40:
+ bw = WMI_PEER_CHWIDTH_40MHZ;
+ break;
+ case IEEE80211_STA_RX_BW_80:
+ bw = WMI_PEER_CHWIDTH_80MHZ;
+ break;
+ case IEEE80211_STA_RX_BW_160:
+ ath10k_warn("unsupported STA BW: %d\n", sta->bandwidth);
+ bw = WMI_PEER_CHWIDTH_20MHZ;
+ break;
+ }
+
+ arsta->bw = bw;
+ }
+
+ if (changed & IEEE80211_RC_NSS_CHANGED)
+ arsta->nss = sta->rx_nss;
+
+ if (changed & IEEE80211_RC_SMPS_CHANGED) {
+ smps = WMI_PEER_SMPS_PS_NONE;
+
+ switch (sta->smps_mode) {
+ case IEEE80211_SMPS_AUTOMATIC:
+ case IEEE80211_SMPS_OFF:
+ smps = WMI_PEER_SMPS_PS_NONE;
+ break;
+ case IEEE80211_SMPS_STATIC:
+ smps = WMI_PEER_SMPS_STATIC;
+ break;
+ case IEEE80211_SMPS_DYNAMIC:
+ smps = WMI_PEER_SMPS_DYNAMIC;
+ break;
+ case IEEE80211_SMPS_NUM_MODES:
+ ath10k_warn("invalid smps mode: %d\n", sta->smps_mode);
+ smps = WMI_PEER_SMPS_PS_NONE;
+ break;
+ }
+
+ arsta->smps = smps;
+ }
+
+ if (changed & IEEE80211_RC_SUPP_RATES_CHANGED) {
+ /* FIXME: Not implemented. Probably the only way to do it would
+ * be to re-assoc the peer. */
+ changed &= ~IEEE80211_RC_SUPP_RATES_CHANGED;
+ ath10k_dbg(ATH10K_DBG_MAC,
+ "mac sta rc update - supp rates changed - not implemented\n");
+ }
+
+ arsta->changed |= changed;
+
+ spin_unlock_bh(&ar->data_lock);
+
+ ieee80211_queue_work(hw, &arsta->update_wk);
+}
+
static const struct ieee80211_ops ath10k_ops = {
.tx = ath10k_tx,
.start = ath10k_start,
@@ -3878,6 +4025,7 @@ static const struct ieee80211_ops ath10k_ops = {
.get_survey = ath10k_get_survey,
.set_bitrate_mask = ath10k_set_bitrate_mask,
.channel_switch_beacon = ath10k_channel_switch_beacon,
+ .sta_rc_update = ath10k_sta_rc_update,
#ifdef CONFIG_PM
.suspend = ath10k_suspend,
.resume = ath10k_resume,
@@ -4253,6 +4401,7 @@ int ath10k_mac_register(struct ath10k *ar)
ar->hw->wiphy->max_scan_ie_len = WLAN_SCAN_PARAMS_MAX_IE_LEN;
ar->hw->vif_data_size = sizeof(struct ath10k_vif);
+ ar->hw->sta_data_size = sizeof(struct ath10k_sta);
ar->hw->max_listen_interval = ATH10K_MAX_HW_LISTEN_INTERVAL;
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index 083079f..6df4f95 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -3876,6 +3876,12 @@ enum wmi_peer_smps_state {
WMI_PEER_SMPS_DYNAMIC = 0x2
};
+enum wmi_peer_chwidth {
+ WMI_PEER_CHWIDTH_20MHZ = 0,
+ WMI_PEER_CHWIDTH_40MHZ = 1,
+ WMI_PEER_CHWIDTH_80MHZ = 2,
+};
+
enum wmi_peer_param {
WMI_PEER_SMPS_STATE = 0x1, /* see %wmi_peer_smps_state */
WMI_PEER_AMPDU = 0x2,
--
1.8.5.3
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
