| 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(dev: ndev); |
| 48 | dev->ndev = ndev; |
| 49 | |
| 50 | rc = register_netdev(dev: ndev); |
| 51 | if (rc) { |
| 52 | free_netdev(dev: ndev); |
| 53 | return NULL; |
| 54 | } |
| 55 | |
| 56 | rcu_read_lock(); |
| 57 | dev->mdev = __mctp_dev_get(dev: ndev); |
| 58 | dev->mdev->net = mctp_default_net(net: dev_net(dev: 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(mdev: dev->mdev); |
| 67 | unregister_netdev(dev: dev->ndev); |
| 68 | } |
| 69 |