net: sandbox: Share the priv structure with tests

If tests want to implement tx handlers, they will likely need access to
the details in the priv structure.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

arch/sandbox/include/asm/eth.h

@@ -49,6 +49,25 @@ int sandbox_eth_ping_req_to_reply(struct udevice *dev, void *packet,
 typedef int sandbox_eth_tx_hand_f(struct udevice *dev, void *pkt,
 				   unsigned int len);
 
+/**
+ * struct eth_sandbox_priv - memory for sandbox mock driver
+ *
+ * fake_host_hwaddr - MAC address of mocked machine
+ * fake_host_ipaddr - IP address of mocked machine
+ * disabled - Will not respond
+ * recv_packet_buffer - buffer of the packet returned as received
+ * recv_packet_length - length of the packet returned as received
+ * tx_handler - function to generate responses to sent packets
+ */
+struct eth_sandbox_priv {
+	uchar fake_host_hwaddr[ARP_HLEN];
+	struct in_addr fake_host_ipaddr;
+	bool disabled;
+	uchar *recv_packet_buffer;
+	int recv_packet_length;
+	sandbox_eth_tx_hand_f *tx_handler;
+};
+
 /*
  * Set packet handler
  *

drivers/net/sandbox.c

@@ -15,25 +15,6 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-/**
- * struct eth_sandbox_priv - memory for sandbox mock driver
- *
- * fake_host_hwaddr: MAC address of mocked machine
- * fake_host_ipaddr: IP address of mocked machine
- * disabled: Will not respond
- * recv_packet_buffer: buffer of the packet returned as received
- * recv_packet_length: length of the packet returned as received
- * tx_handler - function to generate responses to sent packets
- */
-struct eth_sandbox_priv {
-	uchar fake_host_hwaddr[ARP_HLEN];
-	struct in_addr fake_host_ipaddr;
-	bool disabled;
-	uchar *recv_packet_buffer;
-	int recv_packet_length;
-	sandbox_eth_tx_hand_f *tx_handler;
-};
-
 static bool skip_timeout;
 
 /*