[PATCH] ath11k: enable power save in station mode
Carl Huang
cjhuang at codeaurora.org
Mon Oct 11 12:06:25 PDT 2021
Enable power save in station mode.
Run "iw dev wls1 set power_save off", check there is no NULL Data frame
from sniffer. Run "iw dev wls1 set power_save on", check there is NULL
Data frame from sniffer.
Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Signed-off-by: Carl Huang <cjhuang at codeaurora.org>
---
drivers/net/wireless/ath/ath11k/core.c | 5 ++
drivers/net/wireless/ath/ath11k/core.h | 1 +
drivers/net/wireless/ath/ath11k/hw.h | 1 +
drivers/net/wireless/ath/ath11k/mac.c | 99 ++++++++++++++++++++++++++++++++--
drivers/net/wireless/ath/ath11k/wmi.c | 33 ++++++++++++
drivers/net/wireless/ath/ath11k/wmi.h | 3 +-
6 files changed, 137 insertions(+), 5 deletions(-)
diff --git a/drivers/net/wireless/ath/ath11k/core.c b/drivers/net/wireless/ath/ath11k/core.c
index 6120382..7e4b5b3 100644
--- a/drivers/net/wireless/ath/ath11k/core.c
+++ b/drivers/net/wireless/ath/ath11k/core.c
@@ -67,6 +67,7 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
.supports_monitor = true,
.supports_shadow_regs = false,
.idle_ps = false,
+ .protocol_ps = false,
.cold_boot_calib = true,
.supports_suspend = false,
.hal_desc_sz = sizeof(struct hal_rx_desc_ipq8074),
@@ -108,6 +109,7 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
.supports_monitor = true,
.supports_shadow_regs = false,
.idle_ps = false,
+ .protocol_ps = false,
.cold_boot_calib = true,
.supports_suspend = false,
.hal_desc_sz = sizeof(struct hal_rx_desc_ipq8074),
@@ -149,6 +151,7 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
.supports_monitor = false,
.supports_shadow_regs = true,
.idle_ps = true,
+ .protocol_ps = true,
.cold_boot_calib = false,
.supports_suspend = true,
.hal_desc_sz = sizeof(struct hal_rx_desc_ipq8074),
@@ -187,6 +190,7 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
.supports_monitor = true,
.supports_shadow_regs = false,
.idle_ps = false,
+ .protocol_ps = false,
.cold_boot_calib = false,
.supports_suspend = false,
.hal_desc_sz = sizeof(struct hal_rx_desc_qcn9074),
@@ -227,6 +231,7 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
.supports_monitor = false,
.supports_shadow_regs = true,
.idle_ps = true,
+ .protocol_ps = true,
.cold_boot_calib = false,
.supports_suspend = true,
.hal_desc_sz = sizeof(struct hal_rx_desc_wcn6855),
diff --git a/drivers/net/wireless/ath/ath11k/core.h b/drivers/net/wireless/ath/ath11k/core.h
index f0a4b90..61e9684 100644
--- a/drivers/net/wireless/ath/ath11k/core.h
+++ b/drivers/net/wireless/ath/ath11k/core.h
@@ -276,6 +276,7 @@ struct ath11k_vif {
bool is_started;
bool is_up;
bool spectral_enabled;
+ bool ps;
u32 aid;
u8 bssid[ETH_ALEN];
struct cfg80211_bitrate_mask bitrate_mask;
diff --git a/drivers/net/wireless/ath/ath11k/hw.h b/drivers/net/wireless/ath/ath11k/hw.h
index 7a5101d..d4ad6f2 100644
--- a/drivers/net/wireless/ath/ath11k/hw.h
+++ b/drivers/net/wireless/ath/ath11k/hw.h
@@ -167,6 +167,7 @@ struct ath11k_hw_params {
bool supports_monitor;
bool supports_shadow_regs;
bool idle_ps;
+ bool protocol_ps;
bool cold_boot_calib;
bool supports_suspend;
u32 hal_desc_sz;
diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index d02823f..a254ef3 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -883,12 +883,93 @@ static int ath11k_monitor_vdev_up(struct ath11k *ar, int vdev_id)
return 0;
}
+static int ath11k_mac_vif_setup_ps(struct ath11k_vif *arvif)
+{
+ struct ath11k *ar = arvif->ar;
+ struct ieee80211_vif *vif = arvif->vif;
+ struct ieee80211_conf *conf = &ar->hw->conf;
+ enum wmi_sta_powersave_param param;
+ enum wmi_sta_ps_mode psmode;
+ int ret;
+ int ps_timeout;
+ bool enable_ps;
+
+ lockdep_assert_held(&arvif->ar->conf_mutex);
+
+ if (arvif->vif->type != NL80211_IFTYPE_STATION)
+ return 0;
+
+ enable_ps = arvif->ps;
+
+ /* need to check if multiple vdev ps setting is supported */
+
+ if (!arvif->is_started) {
+ /* mac80211 can update vif powersave state while disconnected.
+ * Firmware doesn't behave nicely and consumes more power than
+ * necessary if PS is disabled on a non-started vdev. Hence
+ * force-enable PS for non-running vdevs.
+ */
+ psmode = WMI_STA_PS_MODE_ENABLED;
+ } else if (enable_ps) {
+ psmode = WMI_STA_PS_MODE_ENABLED;
+ param = WMI_STA_PS_PARAM_INACTIVITY_TIME;
+
+ ps_timeout = conf->dynamic_ps_timeout;
+ if (ps_timeout == 0) {
+ /* Firmware doesn't like 0 */
+ ps_timeout = ieee80211_tu_to_usec(
+ vif->bss_conf.beacon_int) / 1000;
+ }
+
+ ret = ath11k_wmi_set_sta_ps_param(ar, arvif->vdev_id, param,
+ ps_timeout);
+ if (ret) {
+ ath11k_warn(ar->ab, "failed to set inactivity time for vdev %d: %i\n",
+ arvif->vdev_id, ret);
+ return ret;
+ }
+ } else {
+ psmode = WMI_STA_PS_MODE_DISABLED;
+ }
+
+ ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "mac vdev %d psmode %s\n",
+ arvif->vdev_id, psmode ? "enable" : "disable");
+ ret = ath11k_wmi_set_psmode(ar, arvif->vdev_id, psmode);
+ if (ret) {
+ ath11k_warn(ar->ab, "failed to set PS Mode %d for vdev %d: %d\n",
+ psmode, arvif->vdev_id, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int ath11k_config_ps(struct ath11k *ar)
+{
+ struct ath11k_vif *arvif;
+ int ret = 0;
+
+ lockdep_assert_held(&ar->conf_mutex);
+
+ list_for_each_entry(arvif, &ar->arvifs, list) {
+ ret = ath11k_mac_vif_setup_ps(arvif);
+ if (ret) {
+ ath11k_warn(ar->ab, "failed to setup powersave: %d\n", ret);
+ break;
+ }
+ }
+
+ return ret;
+}
+
static int ath11k_mac_op_config(struct ieee80211_hw *hw, u32 changed)
{
- /* mac80211 requires this op to be present and that's why
- * there's an empty function, this can be extended when
- * required.
- */
+ struct ath11k *ar = hw->priv;
+
+ mutex_lock(&ar->conf_mutex);
+ if (changed & IEEE80211_CONF_CHANGE_PS)
+ ath11k_config_ps(ar);
+ mutex_unlock(&ar->conf_mutex);
return 0;
}
@@ -2610,6 +2691,16 @@ static void ath11k_mac_op_bss_info_changed(struct ieee80211_hw *hw,
}
}
+ if (changed & BSS_CHANGED_PS &&
+ ar->ab->hw_params.protocol_ps) {
+ arvif->ps = vif->bss_conf.ps;
+
+ ret = ath11k_config_ps(ar);
+ if (ret)
+ ath11k_warn(ar->ab, "failed to setup ps on vdev %i: %d\n",
+ arvif->vdev_id, ret);
+ }
+
if (changed & BSS_CHANGED_MCAST_RATE &&
!ath11k_mac_vif_chan(arvif->vif, &def)) {
band = def.chan->band;
diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index 27ae944..8f46864 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -1419,6 +1419,39 @@ int ath11k_wmi_send_set_ap_ps_param_cmd(struct ath11k *ar, u8 *peer_addr,
return ret;
}
+int ath11k_wmi_set_psmode(struct ath11k *ar, u32 vdev_id,
+ enum wmi_sta_ps_mode psmode)
+{
+ struct ath11k_pdev_wmi *wmi = ar->wmi;
+ struct wmi_sta_powersave_mode_cmd *cmd;
+ struct sk_buff *skb;
+ int ret;
+
+ skb = ath11k_wmi_alloc_skb(wmi->wmi_ab, sizeof(*cmd));
+ if (!skb)
+ return -ENOMEM;
+
+ cmd = (struct wmi_sta_powersave_mode_cmd *)skb->data;
+ cmd->tlv_header = FIELD_PREP(WMI_TLV_TAG,
+ WMI_TAG_STA_POWERSAVE_MODE_CMD) |
+ FIELD_PREP(WMI_TLV_LEN, sizeof(*cmd) - TLV_HDR_SIZE);
+
+ cmd->vdev_id = vdev_id;
+ cmd->sta_ps_mode = psmode;
+
+ ath11k_dbg(ar->ab, ATH11K_DBG_WMI,
+ "WMI set sta ps vdev_id %d ps %d\n",
+ vdev_id, psmode);
+
+ ret = ath11k_wmi_cmd_send(wmi, skb, WMI_STA_POWERSAVE_MODE_CMDID);
+ if (ret) {
+ ath11k_warn(ar->ab, "failed to send WMI_STA_POWERSAVE_PARAM_CMDID");
+ dev_kfree_skb(skb);
+ }
+
+ return ret;
+}
+
int ath11k_wmi_set_sta_ps_param(struct ath11k *ar, u32 vdev_id,
u32 param, u32 param_value)
{
diff --git a/drivers/net/wireless/ath/ath11k/wmi.h b/drivers/net/wireless/ath/ath11k/wmi.h
index 0730bdb..e2cce86 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.h
+++ b/drivers/net/wireless/ath/ath11k/wmi.h
@@ -5600,7 +5600,8 @@ int ath11k_wmi_send_peer_create_cmd(struct ath11k *ar,
struct peer_create_params *param);
int ath11k_wmi_vdev_set_param_cmd(struct ath11k *ar, u32 vdev_id,
u32 param_id, u32 param_value);
-
+int ath11k_wmi_set_psmode(struct ath11k *ar, u32 vdev_id,
+ enum wmi_sta_ps_mode psmode);
int ath11k_wmi_set_sta_ps_param(struct ath11k *ar, u32 vdev_id,
u32 param, u32 param_value);
int ath11k_wmi_force_fw_hang_cmd(struct ath11k *ar, u32 type, u32 delay_time_ms);
--
2.7.4
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