1 // SPDX-License-Identifier: GPL-2.0
2
3 #include <linux/netdevice.h>
4 #include <linux/mctp.h>
5 #include <linux/if_arp.h>
6
7 #include <net/mctp.h>
8 #include <net/mctpdevice.h>
9 #include <net/pkt_sched.h>
10
11 #include "utils.h"
12
13 static netdev_tx_t mctp_test_dev_tx(struct sk_buff *skb,
14 struct net_device *ndev)
15 {
16 kfree_skb(skb);
17 return NETDEV_TX_OK;
18 }
19
20 static const struct net_device_ops mctp_test_netdev_ops = {
21 .ndo_start_xmit = mctp_test_dev_tx,
22 };
23
24 static void mctp_test_dev_setup(struct net_device *ndev)
25 {
26 ndev->type = ARPHRD_MCTP;
27 ndev->mtu = MCTP_DEV_TEST_MTU;
28 ndev->hard_header_len = 0;
29 ndev->addr_len = 0;
30 ndev->tx_queue_len = DEFAULT_TX_QUEUE_LEN;
31 ndev->flags = IFF_NOARP;
32 ndev->netdev_ops = &mctp_test_netdev_ops;
33 ndev->needs_free_netdev = true;
34 }
35
36 struct mctp_test_dev *mctp_test_create_dev(void)
37 {
38 struct mctp_test_dev *dev;
39 struct net_device *ndev;
40 int rc;
41
42 ndev = alloc_netdev(sizeof(*dev), "mctptest%d", NET_NAME_ENUM,
43 mctp_test_dev_setup);
44 if (!ndev)
45 return NULL;
46
47 dev = netdev_priv(ndev);
48 dev->ndev = ndev;
49
50 rc = register_netdev(ndev);
51 if (rc) {
52 free_netdev(ndev);
53 return NULL;
54 }
55
56 rcu_read_lock();
57 dev->mdev = __mctp_dev_get(ndev);
58 dev->mdev->net = mctp_default_net(dev_net(ndev));
59 rcu_read_unlock();
60
61 return dev;
62 }
63
64 void mctp_test_destroy_dev(struct mctp_test_dev *dev)
65 {
66 mctp_dev_put(dev->mdev);
67 unregister_netdev(dev->ndev);
68 }
69
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