openwrtv4/package/kernel/mac80211/patches/380-0000-ath10k-handle-tdls-peer-events.patch

From 8ed05ed06fca0136cf4546e804318f57ef823348 Mon Sep 17 00:00:00 2001
From: Manikanta Pubbisetty <mpubbise@qti.qualcomm.com>
Date: Mon, 6 Nov 2017 13:39:32 +0530
Subject: [PATCH] ath10k: handle tdls peer events

Handle tdls peer events from the target. TDLS events for the peer
could be discover, teardown, etc. As of now, adding the logic to
handle tdls teardown events alone.

Teardown due to peer traffic indication(PTR) timeout is one such
teardown event from the target.

Tested this change on QCA9888 with 10.4-3.5.1-00018 fw version.

Signed-off-by: Manikanta Pubbisetty <mpubbise@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/wmi.c | 72 +++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)

--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -29,6 +29,7 @@
 #include "p2p.h"
 #include "hw.h"
 #include "hif.h"
+#include "txrx.h"
 
 #define ATH10K_WMI_BARRIER_ECHO_ID 0xBA991E9
 #define ATH10K_WMI_BARRIER_TIMEOUT_HZ (3 * HZ)
@@ -4456,6 +4457,74 @@ void ath10k_wmi_event_pdev_tpc_config(st
 		   __le32_to_cpu(ev->rate_max));
 }
 
+static void
+ath10k_wmi_handle_tdls_peer_event(struct ath10k *ar, struct sk_buff *skb)
+{
+	struct wmi_tdls_peer_event *ev;
+	struct ath10k_peer *peer;
+	struct ath10k_vif *arvif;
+	int vdev_id;
+	int peer_status;
+	int peer_reason;
+	u8 reason;
+
+	if (skb->len < sizeof(*ev)) {
+		ath10k_err(ar, "received tdls peer event with invalid size (%d bytes)\n",
+			   skb->len);
+		return;
+	}
+
+	ev = (struct wmi_tdls_peer_event *)skb->data;
+	vdev_id = __le32_to_cpu(ev->vdev_id);
+	peer_status = __le32_to_cpu(ev->peer_status);
+	peer_reason = __le32_to_cpu(ev->peer_reason);
+
+	spin_lock_bh(&ar->data_lock);
+	peer = ath10k_peer_find(ar, vdev_id, ev->peer_macaddr.addr);
+	spin_unlock_bh(&ar->data_lock);
+
+	if (!peer) {
+		ath10k_warn(ar, "failed to find peer entry for %pM\n",
+			    ev->peer_macaddr.addr);
+		return;
+	}
+
+	switch (peer_status) {
+	case WMI_TDLS_SHOULD_TEARDOWN:
+		switch (peer_reason) {
+		case WMI_TDLS_TEARDOWN_REASON_PTR_TIMEOUT:
+		case WMI_TDLS_TEARDOWN_REASON_NO_RESPONSE:
+		case WMI_TDLS_TEARDOWN_REASON_RSSI:
+			reason = WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE;
+			break;
+		default:
+			reason = WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED;
+			break;
+		}
+
+		arvif = ath10k_get_arvif(ar, vdev_id);
+		if (!arvif) {
+			ath10k_warn(ar, "received tdls peer event for invalid vdev id %u\n",
+				    vdev_id);
+			return;
+		}
+
+		ieee80211_tdls_oper_request(arvif->vif, ev->peer_macaddr.addr,
+					    NL80211_TDLS_TEARDOWN, reason,
+					    GFP_ATOMIC);
+
+		ath10k_dbg(ar, ATH10K_DBG_WMI,
+			   "received tdls teardown event for peer %pM reason %u\n",
+			   ev->peer_macaddr.addr, peer_reason);
+		break;
+	default:
+		ath10k_dbg(ar, ATH10K_DBG_WMI,
+			   "received unknown tdls peer event %u\n",
+			   peer_status);
+		break;
+	}
+}
+
 void ath10k_wmi_event_pdev_ftm_intg(struct ath10k *ar, struct sk_buff *skb)
 {
 	ath10k_dbg(ar, ATH10K_DBG_WMI, "WMI_PDEV_FTM_INTG_EVENTID\n");
@@ -5478,6 +5547,9 @@ static void ath10k_wmi_10_4_op_rx(struct
 	case WMI_10_4_PDEV_TPC_CONFIG_EVENTID:
 		ath10k_wmi_event_pdev_tpc_config(ar, skb);
 		break;
+	case WMI_10_4_TDLS_PEER_EVENTID:
+		ath10k_wmi_handle_tdls_peer_event(ar, skb);
+		break;
 	default:
 		ath10k_warn(ar, "Unknown eventid: %d\n", id);
 		break;