qcacmn: drop duplicated EAP frames from REO exception path

For REO error 7 OOR frame, if they are retry frame under BA
session, then they are likely SN duplicated frame. if deliver
EAPOL to stack in this case, sometimes it will fail to connect
AP as duplicated TX EAP response is seen.
Drop duplicated EAP frames in this case.

Change-Id: Iec0ba37548f2a83fe749f83ec904ec9bfdb306af
CRs-Fixed: 2796226

dp/wifi3.0/dp_rx_err.c

@@ -460,8 +460,10 @@ dp_rx_pn_error_handle(struct dp_soc *soc, hal_ring_desc_t ring_desc,
  *
  * @soc: core txrx main context
  * @nbuf: pointer to msdu skb
- * @peer_id: dp peer ID
  * @rx_tlv_hdr: start of rx tlv header
+ * @mpdu_desc_info: pointer to mpdu level description info
+ * @peer_id: dp peer ID
+ * @tid: dp tid
  *
  * This function process the msdu delivered from REO2TCL
  * ring with error type OOR
@@ -471,19 +473,31 @@ dp_rx_pn_error_handle(struct dp_soc *soc, hal_ring_desc_t ring_desc,
 static void
 dp_rx_oor_handle(struct dp_soc *soc,
 		 qdf_nbuf_t nbuf,
+		 uint8_t *rx_tlv_hdr,
+		 struct hal_rx_mpdu_desc_info *mpdu_desc_info,
 		 uint16_t peer_id,
-		 uint8_t *rx_tlv_hdr)
+		 uint8_t tid)
 {
 	uint32_t frame_mask = FRAME_MASK_IPV4_ARP | FRAME_MASK_IPV4_DHCP |
 				FRAME_MASK_IPV4_EAPOL | FRAME_MASK_IPV6_DHCP;
 	struct dp_peer *peer = NULL;
 
 	peer = dp_peer_get_ref_by_id(soc, peer_id, DP_MOD_ID_RX_ERR);
-	if (!peer) {
-		dp_info_rl("peer not found");
+	if (!peer || tid >= DP_MAX_TIDS) {
+		dp_info_rl("peer or tid %d not valid", tid);
 		goto free_nbuf;
 	}
 
+	/*
+	 * For REO error 7 OOR, if it is retry frame under BA session,
+	 * then it is likely SN duplicated frame, do not deliver EAPOL
+	 * to stack in this case since the connection might fail due to
+	 * duplicated EAP response.
+	 */
+	if (mpdu_desc_info->mpdu_flags & HAL_MPDU_F_RETRY_BIT &&
+	    peer->rx_tid[tid].ba_status == DP_RX_BA_ACTIVE)
+		frame_mask &= ~FRAME_MASK_IPV4_EAPOL;
+
 	if (dp_rx_deliver_special_frame(soc, peer, nbuf, frame_mask,
 					rx_tlv_hdr)) {
 		DP_STATS_INC(soc, rx.err.reo_err_oor_to_stack, 1);
@@ -593,23 +607,24 @@ more_msdu_link_desc:
 			DP_STATS_INC(soc, rx.err.reo_err_oor_sg_count, 1);
 		}
 
+		/*
+		 * only first msdu, mpdu start description tlv valid?
+		 * and use it for following msdu.
+		 */
+		if (hal_rx_msdu_end_first_msdu_get(soc->hal_soc,
+						   rx_tlv_hdr_last))
+			tid = hal_rx_mpdu_start_tid_get(soc->hal_soc,
+							rx_tlv_hdr_first);
+
 		switch (err_code) {
 		case HAL_REO_ERR_REGULAR_FRAME_2K_JUMP:
-			/*
-			 * only first msdu, mpdu start description tlv valid?
-			 * and use it for following msdu.
-			 */
-			if (hal_rx_msdu_end_first_msdu_get(soc->hal_soc,
-							   rx_tlv_hdr_last))
-				tid = hal_rx_mpdu_start_tid_get(soc->hal_soc,
-							      rx_tlv_hdr_first);
-
 			dp_2k_jump_handle(soc, nbuf, rx_tlv_hdr_last,
 					  peer_id, tid);
 			break;
 
 		case HAL_REO_ERR_REGULAR_FRAME_OOR:
-			dp_rx_oor_handle(soc, nbuf, peer_id, rx_tlv_hdr_last);
+			dp_rx_oor_handle(soc, nbuf, rx_tlv_hdr_last,
+					 mpdu_desc_info, peer_id, tid);
 			break;
 		default:
 			dp_err_rl("Non-support error code %d", err_code);