qcacld-3.0: Fix monitor mode radiotap bw and rssi info

For vht bw, there is a transformation of rx_status->vht_flag_values2
in qdf_nbuf_update_radiotap_vht_flags(), so strictly copy
rx_status->vht_flag_values2 from rx_desc, do not transform twice which
leads to wrong vht bw.
For rssi, only show first mpdu rssi info in a ppdu, firmware reports
-86 rssi_comb for mpdus other than the first one, calculate
ANTSIGNAL by adding with noise floor will show a wrong rssi for those
mpdus.

Change-Id: I776d85cea2cf0f48beeed351ed0643699d805d54
CRs-Fixed: 2588768

core/dp/htt/htt_monitor_rx.c

@@ -47,6 +47,8 @@ enum {
 	HW_RX_DECAP_FORMAT_ETH2,
 };
 
+struct mon_rx_status g_ppdu_rx_status;
+
 /**
  * htt_rx_mon_note_capture_channel() - Make note of channel to update in
  * radiotap
@@ -423,12 +425,7 @@ static void htt_mon_rx_get_phy_info(struct htt_host_rx_desc_base *rx_desc,
 	rx_status->ht_flags = ht_flags;
 	rx_status->vht_flags = vht_flags;
 	rx_status->rtap_flags |= ((preamble == SHORT_PREAMBLE) ? BIT(1) : 0);
-	if (bw == 0)
-		rx_status->vht_flag_values2 = 0;
-	else if (bw == 1)
-		rx_status->vht_flag_values2 = 1;
-	else if (bw == 2)
-		rx_status->vht_flag_values2 = 4;
+	rx_status->vht_flag_values2 = bw;
 }
 
 /**
@@ -517,7 +514,6 @@ int htt_rx_mon_amsdu_rx_in_order_pop_ll(htt_pdev_handle pdev,
 	uint32_t *msg_word;
 	uint32_t msdu_count;
 	struct htt_host_rx_desc_base *rx_desc;
-	struct mon_rx_status rx_status = {0};
 	uint32_t amsdu_len;
 	uint32_t len;
 	uint32_t last_frag;
@@ -628,7 +624,12 @@ int htt_rx_mon_amsdu_rx_in_order_pop_ll(htt_pdev_handle pdev,
 		 * Make the netbuf's data pointer point to the payload rather
 		 * than the descriptor.
 		 */
-		htt_rx_mon_get_rx_status(pdev, rx_desc, &rx_status);
+		if (rx_desc->attention.first_mpdu) {
+			memset(&g_ppdu_rx_status, 0,
+			       sizeof(struct mon_rx_status));
+			htt_rx_mon_get_rx_status(pdev, rx_desc,
+						 &g_ppdu_rx_status);
+		}
 		/*
 		 * For certain platform, 350 bytes of headroom is already
 		 * appended to accommodate radiotap header but
@@ -664,7 +665,7 @@ int htt_rx_mon_amsdu_rx_in_order_pop_ll(htt_pdev_handle pdev,
 		 */
 		if (qdf_nbuf_head(msdu) == qdf_nbuf_data(msdu))
 			qdf_nbuf_pull_head(msdu, HTT_RX_STD_DESC_RESERVATION);
-		qdf_nbuf_update_radiotap(&rx_status, msdu,
+		qdf_nbuf_update_radiotap(&g_ppdu_rx_status, msdu,
 					 HTT_RX_STD_DESC_RESERVATION);
 		amsdu_len = HTT_RX_IN_ORD_PADDR_IND_MSDU_LEN_GET(*(msg_word +
 						NEXT_FIELD_OFFSET_IN32));