This is needed to test the netretry functionality (make the command fail on a sandbox eth device).
Signed-off-by: Joe Hershberger joe.hershberger@ni.com Reviewed-by: Simon Glass sjg@chromium.org
---
Changes in v7: None Changes in v6: -Add function comments -Check array index bounds
Changes in v5: -Use a function call to change mock driver behavior
Changes in v4: -Add ability to disable ping reply in sandbox eth driver
Changes in v3: None Changes in v2: None
arch/sandbox/include/asm/eth.h | 15 +++++++++++++++ drivers/net/sandbox.c | 17 +++++++++++++++++ 2 files changed, 32 insertions(+) create mode 100644 arch/sandbox/include/asm/eth.h
diff --git a/arch/sandbox/include/asm/eth.h b/arch/sandbox/include/asm/eth.h new file mode 100644 index 0000000..4b79ede --- /dev/null +++ b/arch/sandbox/include/asm/eth.h @@ -0,0 +1,15 @@ +/* + * Copyright (c) 2015 National Instruments + * + * (C) Copyright 2015 + * Joe Hershberger joe.hershberger@ni.com + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#ifndef __ETH_H +#define __ETH_H + +void sandbox_eth_disable_response(int index, bool disable); + +#endif /* __ETH_H */ diff --git a/drivers/net/sandbox.c b/drivers/net/sandbox.c index cb69a95..db115d0 100644 --- a/drivers/net/sandbox.c +++ b/drivers/net/sandbox.c @@ -29,6 +29,19 @@ struct eth_sandbox_priv { int recv_packet_length; };
+static bool disabled[8] = {false}; + +/* + * sandbox_eth_disable_response() + * + * index - The alias index (also DM seq number) + * disable - If non-zero, ignore sent packets and don't send mock response + */ +void sandbox_eth_disable_response(int index, bool disable) +{ + disabled[index] = disable; +} + static int sb_eth_start(struct udevice *dev) { struct eth_sandbox_priv *priv = dev_get_priv(dev); @@ -48,6 +61,10 @@ static int sb_eth_send(struct udevice *dev, void *packet, int length)
debug("eth_sandbox: Send packet %d\n", length);
+ if (dev->seq >= 0 && dev->seq < ARRAY_SIZE(disabled) && + disabled[dev->seq]) + return 0; + if (ntohs(eth->et_protlen) == PROT_ARP) { struct arp_hdr *arp = packet + ETHER_HDR_SIZE;