[PATCH v3 6/7] ath10k: implement tx pause wmi event
Michal Kazior
michal.kazior at tieto.com
Fri Feb 6 04:02:53 PST 2015
qca6174 wmi-tlv firmware defines a new wmi event
for host tx pausing (i.e. stop/wake tx queues).
Map these events to ath10k/mac80211 tx queue
control.
This is important for multi-channel throughput
performance.
Signed-off-by: Michal Kazior <michal.kazior at tieto.com>
---
Notes:
v2:
* s/thourghput/throughput/ in commit log
drivers/net/wireless/ath/ath10k/mac.c | 12 +++++
drivers/net/wireless/ath/ath10k/wmi-tlv.c | 86 +++++++++++++++++++++++++++++++
drivers/net/wireless/ath/ath10k/wmi-tlv.h | 42 +++++++++++++++
3 files changed, 140 insertions(+)
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 056f94c..c567e3c 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -3464,6 +3464,14 @@ err:
return ret;
}
+static void ath10k_mac_vif_tx_unlock_all(struct ath10k_vif *arvif)
+{
+ int i;
+
+ for (i = 0; i < BITS_PER_LONG; i++)
+ ath10k_mac_vif_tx_unlock(arvif, i);
+}
+
static void ath10k_remove_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
@@ -3514,6 +3522,10 @@ static void ath10k_remove_interface(struct ieee80211_hw *hw,
ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
}
+ spin_lock_bh(&ar->htt.tx_lock);
+ ath10k_mac_vif_tx_unlock_all(arvif);
+ spin_unlock_bh(&ar->htt.tx_lock);
+
mutex_unlock(&ar->conf_mutex);
}
diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.c b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
index aedb820..8b79552 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.c
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
@@ -16,6 +16,7 @@
*/
#include "core.h"
#include "debug.h"
+#include "mac.h"
#include "hw.h"
#include "wmi.h"
#include "wmi-ops.h"
@@ -62,6 +63,8 @@ static const struct wmi_tlv_policy wmi_tlv_policies[] = {
= { .min_len = sizeof(struct wmi_tlv_bcn_tx_status_ev) },
[WMI_TLV_TAG_STRUCT_DIAG_DATA_CONTAINER_EVENT]
= { .min_len = sizeof(struct wmi_tlv_diag_data_ev) },
+ [WMI_TLV_TAG_STRUCT_TX_PAUSE_EVENT]
+ = { .min_len = sizeof(struct wmi_tlv_tx_pause_ev) },
};
static int
@@ -296,6 +299,86 @@ static int ath10k_wmi_tlv_event_diag(struct ath10k *ar,
return 0;
}
+static int ath10k_wmi_tlv_event_tx_pause(struct ath10k *ar,
+ struct sk_buff *skb)
+{
+ const void **tb;
+ const struct wmi_tlv_tx_pause_ev *ev;
+ int ret, vdev_id;
+ u32 pause_id, action, vdev_map, peer_id, tid_map;
+ struct ath10k_vif *arvif;
+
+ tb = ath10k_wmi_tlv_parse_alloc(ar, skb->data, skb->len, GFP_ATOMIC);
+ if (IS_ERR(tb)) {
+ ret = PTR_ERR(tb);
+ ath10k_warn(ar, "failed to parse tlv: %d\n", ret);
+ return ret;
+ }
+
+ ev = tb[WMI_TLV_TAG_STRUCT_TX_PAUSE_EVENT];
+ if (!ev) {
+ kfree(tb);
+ return -EPROTO;
+ }
+
+ pause_id = __le32_to_cpu(ev->pause_id);
+ action = __le32_to_cpu(ev->action);
+ vdev_map = __le32_to_cpu(ev->vdev_map);
+ peer_id = __le32_to_cpu(ev->peer_id);
+ tid_map = __le32_to_cpu(ev->tid_map);
+
+ ath10k_dbg(ar, ATH10K_DBG_WMI,
+ "wmi tlv tx pause pause_id %u action %u vdev_map 0x%08x peer_id %u tid_map 0x%08x\n",
+ pause_id, action, vdev_map, peer_id, tid_map);
+
+ for (vdev_id = 0; vdev_map; vdev_id++) {
+ if (!(vdev_map & BIT(vdev_id)))
+ continue;
+
+ vdev_map &= ~BIT(vdev_id);
+
+ spin_lock_bh(&ar->htt.tx_lock);
+ spin_lock_bh(&ar->data_lock);
+
+ arvif = ath10k_get_arvif(ar, vdev_id);
+ if (!arvif) {
+ ath10k_warn(ar, "failed to find arvif for vdev %i for tx pause event\n",
+ vdev_id);
+ spin_unlock_bh(&ar->data_lock);
+ spin_unlock_bh(&ar->htt.tx_lock);
+ continue;
+ }
+
+ /* FIXME: Some pause_id aren't vdev orinted. Instead they are
+ * peer_id oriented (mostly for AP mode scenarios).
+ */
+ if (pause_id == WMI_TLV_TX_PAUSE_ID_MCC ||
+ pause_id == WMI_TLV_TX_PAUSE_ID_P2P_CLI_NOA ||
+ pause_id == WMI_TLV_TX_PAUSE_ID_P2P_GO_PS ||
+ pause_id == WMI_TLV_TX_PAUSE_ID_AP_PS ||
+ pause_id == WMI_TLV_TX_PAUSE_ID_IBSS_PS) {
+ switch (action) {
+ case WMI_TLV_TX_PAUSE_ACTION_STOP:
+ ath10k_mac_vif_tx_lock(arvif, pause_id);
+ break;
+ case WMI_TLV_TX_PAUSE_ACTION_WAKE:
+ ath10k_mac_vif_tx_unlock(arvif, pause_id);
+ break;
+ default:
+ ath10k_warn(ar, "received unknown tx pause action %d on vdev %i, ignoring\n",
+ action, vdev_id);
+ break;
+ }
+ }
+
+ spin_unlock_bh(&ar->data_lock);
+ spin_unlock_bh(&ar->htt.tx_lock);
+ }
+
+ kfree(tb);
+ return 0;
+}
+
/***********/
/* TLV ops */
/***********/
@@ -417,6 +500,9 @@ static void ath10k_wmi_tlv_op_rx(struct ath10k *ar, struct sk_buff *skb)
case WMI_TLV_DIAG_EVENTID:
ath10k_wmi_tlv_event_diag(ar, skb);
break;
+ case WMI_TLV_TX_PAUSE_EVENTID:
+ ath10k_wmi_tlv_event_tx_pause(ar, skb);
+ break;
default:
ath10k_warn(ar, "Unknown eventid: %d\n", id);
break;
diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.h b/drivers/net/wireless/ath/ath10k/wmi-tlv.h
index a05952a..3abc85f 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.h
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.h
@@ -1443,6 +1443,48 @@ struct wmi_tlv_adaptive_qcs {
__le32 enable;
} __packed;
+/**
+ * wmi_tlv_tx_pause_id - firmware tx queue pause reason types
+ *
+ * @WMI_TLV_TX_PAUSE_ID_MCC: used for by multi-channel firmware scheduler.
+ * Only vdev_map is valid.
+ * @WMI_TLV_TX_PAUSE_ID_AP_PEER_PS: peer in AP mode is asleep.
+ * Only peer_id is valid.
+ * @WMI_TLV_TX_PAUSE_ID_AP_PEER_UAPSD: Only peer_id and tid_map are valid.
+ * @WMI_TLV_TX_PAUSE_ID_P2P_CLI_NOA: Only vdev_map is valid.
+ * @WMI_TLV_TX_PAUSE_ID_P2P_GO_PS: Only vdev_map is valid.
+ * @WMI_TLV_TX_PAUSE_ID_STA_ADD_BA: Only peer_id and tid_map are valid.
+ * @WMI_TLV_TX_PAUSE_ID_AP_PS: When all peers are asleep in AP mode. Only
+ * vdev_map is valid.
+ * @WMI_TLV_TX_PAUSE_ID_IBSS_PS: When all peers are asleep in IBSS mode. Only
+ * vdev_map is valid.
+ * @WMI_TLV_TX_PAUSE_ID_HOST: Host itself requested tx pause.
+ */
+enum wmi_tlv_tx_pause_id {
+ WMI_TLV_TX_PAUSE_ID_MCC = 1,
+ WMI_TLV_TX_PAUSE_ID_AP_PEER_PS = 2,
+ WMI_TLV_TX_PAUSE_ID_AP_PEER_UAPSD = 3,
+ WMI_TLV_TX_PAUSE_ID_P2P_CLI_NOA = 4,
+ WMI_TLV_TX_PAUSE_ID_P2P_GO_PS = 5,
+ WMI_TLV_TX_PAUSE_ID_STA_ADD_BA = 6,
+ WMI_TLV_TX_PAUSE_ID_AP_PS = 7,
+ WMI_TLV_TX_PAUSE_ID_IBSS_PS = 8,
+ WMI_TLV_TX_PAUSE_ID_HOST = 21,
+};
+
+enum wmi_tlv_tx_pause_action {
+ WMI_TLV_TX_PAUSE_ACTION_STOP,
+ WMI_TLV_TX_PAUSE_ACTION_WAKE,
+};
+
+struct wmi_tlv_tx_pause_ev {
+ __le32 pause_id;
+ __le32 action;
+ __le32 vdev_map;
+ __le32 peer_id;
+ __le32 tid_map;
+} __packed;
+
void ath10k_wmi_tlv_attach(struct ath10k *ar);
#endif
--
1.8.5.3
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