qcacmn: Register API to flush frags in dp peer ops

Register dp_peer_flush_frags API in dp peer ops
for flushing fragments for a particular peer.

Change-Id: Ia179d3160bdc306ec965c465134042c66a0c40a6
CRs-Fixed: 2874366

dp/wifi3.0/dp_internal.h

@@ -2752,4 +2752,16 @@ void dp_pdev_bkp_stats_detach(struct dp_pdev *pdev);
  */
 
 QDF_STATUS dp_pdev_bkp_stats_attach(struct dp_pdev *pdev);
+
+/**
+ * dp_peer_flush_frags() - Flush all fragments for a particular
+ *  peer
+ * @soc_hdl - data path soc handle
+ * @vdev_id - vdev id
+ * @peer_addr - peer mac address
+ *
+ * Return: None
+ */
+void dp_peer_flush_frags(struct cdp_soc_t *soc_hdl, uint8_t vdev_id,
+			 uint8_t *peer_mac);
 #endif /* #ifndef _DP_INTERNAL_H_ */

dp/wifi3.0/dp_main.c

@@ -12639,6 +12639,7 @@ static struct cdp_peer_ops dp_ops_peer = {
 	.get_vdev_by_peer_addr = dp_get_vdev_by_peer_addr,
 	.peer_get_peer_mac_addr = dp_peer_get_peer_mac_addr,
 	.get_peer_state = dp_get_peer_state,
+	.peer_flush_frags = dp_peer_flush_frags,
 };
 #endif
 

dp/wifi3.0/dp_peer.c

@@ -4649,3 +4649,30 @@ failed:
 		dp_vdev_unref_delete(soc, vdev, DP_MOD_ID_GENERIC_STATS);
 }
 #endif /* DUMP_REO_QUEUE_INFO_IN_DDR */
+
+void dp_peer_flush_frags(struct cdp_soc_t *soc_hdl, uint8_t vdev_id,
+			 uint8_t *peer_mac)
+{
+	struct dp_soc *soc = cdp_soc_t_to_dp_soc(soc_hdl);
+	struct dp_peer *peer = dp_peer_find_hash_find(soc, peer_mac, 0,
+						      vdev_id, DP_MOD_ID_CDP);
+	struct dp_rx_tid *rx_tid;
+	uint8_t tid;
+
+	if (!peer)
+		return;
+
+	dp_info("Flushing fragments for peer " QDF_MAC_ADDR_FMT,
+		QDF_MAC_ADDR_REF(peer->mac_addr.raw));
+
+	for (tid = 0; tid < DP_MAX_TIDS; tid++) {
+		rx_tid = &peer->rx_tid[tid];
+
+		qdf_spin_lock_bh(&rx_tid->tid_lock);
+		dp_rx_defrag_waitlist_remove(peer, tid);
+		dp_rx_reorder_flush_frag(peer, tid);
+		qdf_spin_unlock_bh(&rx_tid->tid_lock);
+	}
+
+	dp_peer_unref_delete(peer, DP_MOD_ID_CDP);
+}