GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

2026-09-06 03:52:57 +08:00
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+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2015 National Instruments
+ *
+ * (C) Copyright 2015
+ * Joe Hershberger <joe.hershberger@ni.com>
+ */
+
+#ifndef __ETH_H
+#define __ETH_H
+
+void sandbox_eth_disable_response(int index, bool disable);
+
+void sandbox_eth_skip_timeout(void);
+
+/*
+ * sandbox_eth_arp_req_to_reply()
+ *
+ * Check for an arp request to be sent. If so, inject a reply
+ *
+ * @dev: device that received the packet
+ * @packet: pointer to the received pacaket buffer
+ * @len: length of received packet
+ * @return 0 if injected, -EAGAIN if not
+ */
+int sandbox_eth_arp_req_to_reply(struct udevice *dev, void *packet,
+				 unsigned int len);
+
+/*
+ * sandbox_eth_ping_req_to_reply()
+ *
+ * Check for a ping request to be sent. If so, inject a reply
+ *
+ * @dev: device that received the packet
+ * @packet: pointer to the received pacaket buffer
+ * @len: length of received packet
+ * @return 0 if injected, -EAGAIN if not
+ */
+int sandbox_eth_ping_req_to_reply(struct udevice *dev, void *packet,
+				  unsigned int len);
+
+/*
+ * sandbox_eth_recv_arp_req()
+ *
+ * Inject an ARP request for this target
+ *
+ * @dev: device that received the packet
+ * @return 0 if injected, -EOVERFLOW if not
+ */
+int sandbox_eth_recv_arp_req(struct udevice *dev);
+
+/*
+ * sandbox_eth_recv_ping_req()
+ *
+ * Inject a ping request for this target
+ *
+ * @dev: device that received the packet
+ * @return 0 if injected, -EOVERFLOW if not
+ */
+int sandbox_eth_recv_ping_req(struct udevice *dev);
+
+/**
+ * A packet handler
+ *
+ * dev - device pointer
+ * pkt - pointer to the "sent" packet
+ * len - packet length
+ */
+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 - buffers of the packet returned as received
+ * recv_packet_length - lengths of the packet returned as received
+ * recv_packets - number of packets returned
+ * tx_handler - function to generate responses to sent packets
+ * priv - a pointer to some structure a test may want to keep track of
+ */
+struct eth_sandbox_priv {
+	uchar fake_host_hwaddr[ARP_HLEN];
+	struct in_addr fake_host_ipaddr;
+	bool disabled;
+	uchar * recv_packet_buffer[PKTBUFSRX];
+	int recv_packet_length[PKTBUFSRX];
+	int recv_packets;
+	sandbox_eth_tx_hand_f *tx_handler;
+	void *priv;
+};
+
+/*
+ * Set packet handler
+ *
+ * handler - The func ptr to call on send. If NULL, set to default handler
+ */
+void sandbox_eth_set_tx_handler(int index, sandbox_eth_tx_hand_f *handler);
+
+/*
+ * Set priv ptr
+ *
+ * priv - priv void ptr to store in the device
+ */
+void sandbox_eth_set_priv(int index, void *priv);
+
+#endif /* __ETH_H */