qcacmn: update peer reuse logic and add peer state lock

With new design, peer is deleted from hash table in
cdp_peer_delete. Hash table search in dp_peer_can_reuse
API at cdp_peer_create will always fail

Update the peer reuse logic to search from inactive list.

Insert peer to inactive list from cdp_peer_delete() and
in peer reuse case search in inactive list to get
peer.

Also add a new lock to protect peer state transition

Change-Id: I2e672fc4a9346c95d67716d437538dd0f96b2207

dp/wifi3.0/dp_peer.c

@@ -890,7 +890,7 @@ QDF_STATUS dp_peer_add_ast(struct dp_soc *soc,
 
 	qdf_spin_lock_bh(&soc->ast_lock);
 
-	if (peer->peer_state != DP_PEER_STATE_ACTIVE) {
+	if (!dp_peer_state_cmp(peer, DP_PEER_STATE_ACTIVE)) {
 		if ((type != CDP_TXRX_AST_TYPE_STATIC) &&
 		    (type != CDP_TXRX_AST_TYPE_SELF)) {
 			qdf_spin_unlock_bh(&soc->ast_lock);
@@ -1319,7 +1319,7 @@ int dp_peer_update_ast(struct dp_soc *soc, struct dp_peer *peer,
 	 *  3) We did not get the HTT map for create event
 	 */
 	if (ast_entry->delete_in_progress ||
-	    (peer->peer_state != DP_PEER_STATE_ACTIVE) ||
+	    !dp_peer_state_cmp(peer, DP_PEER_STATE_ACTIVE) ||
 	    !ast_entry->is_mapped)
 		return ret;
 
@@ -1983,7 +1983,7 @@ static inline struct dp_peer *dp_peer_find_add_id(struct dp_soc *soc,
 		 * if peer is in logical delete CP triggered delete before map
 		 * is received ignore this event
 		 */
-		if (peer->peer_state == DP_PEER_STATE_LOGICAL_DELETE) {
+		if (dp_peer_state_cmp(peer, DP_PEER_STATE_LOGICAL_DELETE)) {
 			dp_peer_unref_delete(peer, DP_MOD_ID_CONFIG);
 			dp_alert("Peer %pK["QDF_MAC_ADDR_FMT"] logical delete state vid %d",
 				 peer, QDF_MAC_ADDR_REF(peer_mac_addr),
@@ -2171,14 +2171,8 @@ dp_rx_peer_unmap_handler(struct dp_soc *soc, uint16_t peer_id,
 	}
 
 	vdev = peer->vdev;
-	/* cleanup the peer data */
-	dp_peer_cleanup(vdev, peer);
 	DP_UPDATE_STATS(vdev, peer);
 
-	qdf_spin_lock_bh(&soc->inactive_peer_list_lock);
-	TAILQ_INSERT_TAIL(&soc->inactive_peer_list, peer, inactive_list_elem);
-	qdf_spin_unlock_bh(&soc->inactive_peer_list_lock);
-
 	dp_peer_update_state(soc, peer, DP_PEER_STATE_INACTIVE);
 	dp_peer_unref_delete(peer, DP_MOD_ID_HTT);
 	/*