qcacmn: Free Rx Desc during WiFi unload

Rx desc pools are reused across wifi up
and wifi down, only nbufs part of these
pools are free during down

Free Rx desc pools during WiFi Unload

CRs-Fixed: 2418941
Change-Id: I5cc3a82d99efd84f51f9eb048cf06da5a4495e55

dp/wifi3.0/dp_main.c

@@ -3733,7 +3733,8 @@ static void dp_pdev_detach(struct cdp_pdev *txrx_pdev, int force)
 {
 	struct dp_pdev *pdev = (struct dp_pdev *)txrx_pdev;
 	struct dp_soc *soc = pdev->soc;
-	int mac_id;
+	struct rx_desc_pool *rx_desc_pool;
+	int mac_id, mac_for_pdev;
 
 	if (wlan_cfg_per_pdev_tx_ring(soc->wlan_cfg_ctx)) {
 		dp_srng_cleanup(soc, &soc->tcl_data_ring[pdev->pdev_id],
@@ -3756,6 +3757,19 @@ static void dp_pdev_detach(struct cdp_pdev *txrx_pdev, int force)
 		dp_mon_ring_cleanup(soc, pdev, mac_id);
 		dp_srng_cleanup(soc, &pdev->rxdma_err_dst_ring[mac_id],
 				RXDMA_DST, 0);
+		if (dp_is_soc_reinit(soc)) {
+			mac_for_pdev = dp_get_mac_id_for_pdev(mac_id,
+							      pdev->pdev_id);
+			rx_desc_pool = &soc->rx_desc_status[mac_for_pdev];
+			dp_rx_desc_free_array(soc, rx_desc_pool);
+			rx_desc_pool = &soc->rx_desc_mon[mac_for_pdev];
+			dp_rx_desc_free_array(soc, rx_desc_pool);
+		}
+	}
+
+	if (dp_is_soc_reinit(soc)) {
+		rx_desc_pool = &soc->rx_desc_buf[pdev->pdev_id];
+		dp_rx_desc_free_array(soc, rx_desc_pool);
 	}
 
 	soc->pdev_list[pdev->pdev_id] = NULL;