[U-Boot] [PATCH 2/3] sandbox: eth: Add a function to skip ping timeouts

[Joe Hershberger]

When called, the next call to receive will trigger a 10-second leap
forward in time to avoid waiting for time to pass when tests are
evaluating timeout behavior.

Signed-off-by: Joe Hershberger <joe.hershberger at ni.com>
---

 arch/sandbox/include/asm/eth.h |  2 ++
 drivers/net/sandbox.c          | 17 +++++++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/arch/sandbox/include/asm/eth.h b/arch/sandbox/include/asm/eth.h
index 4b79ede..88804fb 100644
--- a/arch/sandbox/include/asm/eth.h
+++ b/arch/sandbox/include/asm/eth.h
@@ -12,4 +12,6 @@
 
 void sandbox_eth_disable_response(int index, bool disable);
 
+void sandbox_eth_skip_timeout(void);
+
 #endif /* __ETH_H */
diff --git a/drivers/net/sandbox.c b/drivers/net/sandbox.c
index e239ff4..4e083d3 100644
--- a/drivers/net/sandbox.c
+++ b/drivers/net/sandbox.c
@@ -11,6 +11,7 @@
 #include <dm.h>
 #include <malloc.h>
 #include <net.h>
+#include <asm/test.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -30,6 +31,7 @@ struct eth_sandbox_priv {
 };
 
 static bool disabled[8] = {false};
+static bool skip_timeout;
 
 /*
  * sandbox_eth_disable_response()
@@ -42,6 +44,16 @@ void sandbox_eth_disable_response(int index, bool disable)
 	disabled[index] = disable;
 }
 
+/*
+ * sandbox_eth_skip_timeout()
+ *
+ * When the first packet read is attempted, fast-forward time
+ */
+void sandbox_eth_skip_timeout(void)
+{
+	skip_timeout = true;
+}
+
 static int sb_eth_start(struct udevice *dev)
 {
 	struct eth_sandbox_priv *priv = dev_get_priv(dev);
@@ -144,6 +156,11 @@ static int sb_eth_recv(struct udevice *dev, uchar **packetp)
 {
 	struct eth_sandbox_priv *priv = dev_get_priv(dev);
 
+	if (skip_timeout) {
+		sandbox_timer_add_offset(10000UL);
+		skip_timeout = false;
+	}
+
 	if (priv->recv_packet_length) {
 		int lcl_recv_packet_length = priv->recv_packet_length;
 
-- 
1.7.11.5