// SPDX-License-Identifier: GPL-2.0 #include <linux/netdevice.h> #include <linux/mctp.h> #include <linux/if_arp.h> #include <net/mctpdevice.h> #include <net/pkt_sched.h> #include "utils.h" static netdev_tx_t mctp_test_dev_tx(struct sk_buff *skb, struct net_device *ndev) { kfree_skb(skb); return NETDEV_TX_OK; } static const struct net_device_ops mctp_test_netdev_ops = { .ndo_start_xmit = mctp_test_dev_tx, }; static void mctp_test_dev_setup(struct net_device *ndev) { ndev->type = ARPHRD_MCTP; ndev->mtu = MCTP_DEV_TEST_MTU; ndev->hard_header_len = 0; ndev->addr_len = 0; ndev->tx_queue_len = DEFAULT_TX_QUEUE_LEN; ndev->flags = IFF_NOARP; ndev->netdev_ops = &mctp_test_netdev_ops; ndev->needs_free_netdev = true; } struct mctp_test_dev *mctp_test_create_dev(void) { struct mctp_test_dev *dev; struct net_device *ndev; int rc; ndev = alloc_netdev(sizeof(*dev), "mctptest%d", NET_NAME_ENUM, mctp_test_dev_setup); if (!ndev) return NULL; dev = netdev_priv(ndev); dev->ndev = ndev; rc = register_netdev(ndev); if (rc) { free_netdev(ndev); return NULL; } rcu_read_lock(); dev->mdev = __mctp_dev_get(ndev); mctp_dev_hold(dev->mdev); rcu_read_unlock(); return dev; } void mctp_test_destroy_dev(struct mctp_test_dev *dev) { mctp_dev_put(dev->mdev); unregister_netdev(dev->ndev); }