162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0 262306a36Sopenharmony_ci 362306a36Sopenharmony_ci#include <linux/netdevice.h> 462306a36Sopenharmony_ci#include <linux/mctp.h> 562306a36Sopenharmony_ci#include <linux/if_arp.h> 662306a36Sopenharmony_ci 762306a36Sopenharmony_ci#include <net/mctpdevice.h> 862306a36Sopenharmony_ci#include <net/pkt_sched.h> 962306a36Sopenharmony_ci 1062306a36Sopenharmony_ci#include "utils.h" 1162306a36Sopenharmony_ci 1262306a36Sopenharmony_cistatic netdev_tx_t mctp_test_dev_tx(struct sk_buff *skb, 1362306a36Sopenharmony_ci struct net_device *ndev) 1462306a36Sopenharmony_ci{ 1562306a36Sopenharmony_ci kfree_skb(skb); 1662306a36Sopenharmony_ci return NETDEV_TX_OK; 1762306a36Sopenharmony_ci} 1862306a36Sopenharmony_ci 1962306a36Sopenharmony_cistatic const struct net_device_ops mctp_test_netdev_ops = { 2062306a36Sopenharmony_ci .ndo_start_xmit = mctp_test_dev_tx, 2162306a36Sopenharmony_ci}; 2262306a36Sopenharmony_ci 2362306a36Sopenharmony_cistatic void mctp_test_dev_setup(struct net_device *ndev) 2462306a36Sopenharmony_ci{ 2562306a36Sopenharmony_ci ndev->type = ARPHRD_MCTP; 2662306a36Sopenharmony_ci ndev->mtu = MCTP_DEV_TEST_MTU; 2762306a36Sopenharmony_ci ndev->hard_header_len = 0; 2862306a36Sopenharmony_ci ndev->addr_len = 0; 2962306a36Sopenharmony_ci ndev->tx_queue_len = DEFAULT_TX_QUEUE_LEN; 3062306a36Sopenharmony_ci ndev->flags = IFF_NOARP; 3162306a36Sopenharmony_ci ndev->netdev_ops = &mctp_test_netdev_ops; 3262306a36Sopenharmony_ci ndev->needs_free_netdev = true; 3362306a36Sopenharmony_ci} 3462306a36Sopenharmony_ci 3562306a36Sopenharmony_cistruct mctp_test_dev *mctp_test_create_dev(void) 3662306a36Sopenharmony_ci{ 3762306a36Sopenharmony_ci struct mctp_test_dev *dev; 3862306a36Sopenharmony_ci struct net_device *ndev; 3962306a36Sopenharmony_ci int rc; 4062306a36Sopenharmony_ci 4162306a36Sopenharmony_ci ndev = alloc_netdev(sizeof(*dev), "mctptest%d", NET_NAME_ENUM, 4262306a36Sopenharmony_ci mctp_test_dev_setup); 4362306a36Sopenharmony_ci if (!ndev) 4462306a36Sopenharmony_ci return NULL; 4562306a36Sopenharmony_ci 4662306a36Sopenharmony_ci dev = netdev_priv(ndev); 4762306a36Sopenharmony_ci dev->ndev = ndev; 4862306a36Sopenharmony_ci 4962306a36Sopenharmony_ci rc = register_netdev(ndev); 5062306a36Sopenharmony_ci if (rc) { 5162306a36Sopenharmony_ci free_netdev(ndev); 5262306a36Sopenharmony_ci return NULL; 5362306a36Sopenharmony_ci } 5462306a36Sopenharmony_ci 5562306a36Sopenharmony_ci rcu_read_lock(); 5662306a36Sopenharmony_ci dev->mdev = __mctp_dev_get(ndev); 5762306a36Sopenharmony_ci rcu_read_unlock(); 5862306a36Sopenharmony_ci 5962306a36Sopenharmony_ci return dev; 6062306a36Sopenharmony_ci} 6162306a36Sopenharmony_ci 6262306a36Sopenharmony_civoid mctp_test_destroy_dev(struct mctp_test_dev *dev) 6362306a36Sopenharmony_ci{ 6462306a36Sopenharmony_ci mctp_dev_put(dev->mdev); 6562306a36Sopenharmony_ci unregister_netdev(dev->ndev); 6662306a36Sopenharmony_ci} 67