Re: [net-next v18 5/7] net: mtip: Add mtip_switch_{rx|tx} functions to the L2 switch driver

+		page = fep->page[bdp - fep->rx_bd_base];
+		/* Process the incoming frame */
+		pkt_len = bdp->cbd_datlen;
+
+		dma_sync_single_for_cpu(&fep->pdev->dev, bdp->cbd_bufaddr,
+					pkt_len, DMA_FROM_DEVICE);
+		net_prefetch(page_address(page));
+		data = page_address(page);
+
+		if (fep->quirks & FEC_QUIRK_SWAP_FRAME)
+			swap_buffer(data, pkt_len);
+
+		eth_hdr = (struct ethhdr *)data;
+		mtip_atable_get_entry_port_number(fep, eth_hdr->h_source,
+						  &rx_port);
+		if (rx_port == MTIP_PORT_FORWARDING_INIT)
+			mtip_atable_dynamicms_learn_migration(fep,
+							      mtip_get_time(),
+							      eth_hdr->h_source,
+							      &rx_port);
+
+		if ((rx_port == 1 || rx_port == 2) && fep->ndev[rx_port - 1])
+			pndev = fep->ndev[rx_port - 1];
+		else
+			pndev = dev;
+
+		*port = rx_port;
+
+		/* This does 16 byte alignment, exactly what we need.
+		 * The packet length includes FCS, but we don't want to
+		 * include that when passing upstream as it messes up
+		 * bridging applications.
+		 */
+		skb = netdev_alloc_skb(pndev, pkt_len + NET_IP_ALIGN);
+		if (unlikely(!skb)) {
+			dev_dbg(&fep->pdev->dev,
+				"%s: Memory squeeze, dropping packet.\n",
+				pndev->name);
+			page_pool_recycle_direct(fep->page_pool, page);
+			pndev->stats.rx_dropped++;
+			return -ENOMEM;
+		}
+
+		skb_reserve(skb, NET_IP_ALIGN);
+		skb_put(skb, pkt_len);      /* Make room */
+		skb_copy_to_linear_data(skb, data, pkt_len);
+		skb->protocol = eth_type_trans(skb, pndev);
+		skb->offload_fwd_mark = fep->br_offload;
+		napi_gro_receive(&fep->napi, skb);