Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * Copyright (c) 2007-2012 Nicira, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) #include <linux/if_vlan.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #include <linux/netdevice.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <linux/etherdevice.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <linux/ethtool.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/skbuff.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <net/dst.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <net/xfrm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <net/rtnetlink.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include "datapath.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include "vport-internal_dev.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include "vport-netdev.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) struct internal_dev {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 	struct vport *vport;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) static struct vport_ops ovs_internal_vport_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) static struct internal_dev *internal_dev_priv(struct net_device *netdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	return netdev_priv(netdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) /* Called with rcu_read_lock_bh. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) static netdev_tx_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) internal_dev_xmit(struct sk_buff *skb, struct net_device *netdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	int len, err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	len = skb->len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	rcu_read_lock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	err = ovs_vport_receive(internal_dev_priv(netdev)->vport, skb, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	rcu_read_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	if (likely(!err)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 		struct pcpu_sw_netstats *tstats = this_cpu_ptr(netdev->tstats);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 		u64_stats_update_begin(&tstats->syncp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 		tstats->tx_bytes += len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 		tstats->tx_packets++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 		u64_stats_update_end(&tstats->syncp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 		netdev->stats.tx_errors++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	return NETDEV_TX_OK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) static int internal_dev_open(struct net_device *netdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	netif_start_queue(netdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) static int internal_dev_stop(struct net_device *netdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	netif_stop_queue(netdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) static void internal_dev_getinfo(struct net_device *netdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 				 struct ethtool_drvinfo *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	strlcpy(info->driver, "openvswitch", sizeof(info->driver));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) static const struct ethtool_ops internal_dev_ethtool_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	.get_drvinfo	= internal_dev_getinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 	.get_link	= ethtool_op_get_link,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) static void internal_dev_destructor(struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	struct vport *vport = ovs_internal_dev_get_vport(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	ovs_vport_free(vport);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) internal_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	memset(stats, 0, sizeof(*stats));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	stats->rx_errors  = dev->stats.rx_errors;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	stats->tx_errors  = dev->stats.tx_errors;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	stats->tx_dropped = dev->stats.tx_dropped;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	stats->rx_dropped = dev->stats.rx_dropped;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	dev_fetch_sw_netstats(stats, dev->tstats);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) static const struct net_device_ops internal_dev_netdev_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	.ndo_open = internal_dev_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	.ndo_stop = internal_dev_stop,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	.ndo_start_xmit = internal_dev_xmit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	.ndo_set_mac_address = eth_mac_addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	.ndo_get_stats64 = internal_get_stats,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) static struct rtnl_link_ops internal_dev_link_ops __read_mostly = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	.kind = "openvswitch",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) static void do_setup(struct net_device *netdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	ether_setup(netdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	netdev->max_mtu = ETH_MAX_MTU;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	netdev->netdev_ops = &internal_dev_netdev_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	netdev->priv_flags &= ~IFF_TX_SKB_SHARING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	netdev->priv_flags |= IFF_LIVE_ADDR_CHANGE | IFF_OPENVSWITCH |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 			      IFF_NO_QUEUE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	netdev->needs_free_netdev = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	netdev->priv_destructor = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	netdev->ethtool_ops = &internal_dev_ethtool_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	netdev->rtnl_link_ops = &internal_dev_link_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	netdev->features = NETIF_F_LLTX | NETIF_F_SG | NETIF_F_FRAGLIST |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 			   NETIF_F_HIGHDMA | NETIF_F_HW_CSUM |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 			   NETIF_F_GSO_SOFTWARE | NETIF_F_GSO_ENCAP_ALL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	netdev->vlan_features = netdev->features;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	netdev->hw_enc_features = netdev->features;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	netdev->features |= NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_STAG_TX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	netdev->hw_features = netdev->features & ~NETIF_F_LLTX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	eth_hw_addr_random(netdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) static struct vport *internal_dev_create(const struct vport_parms *parms)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 	struct vport *vport;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	struct internal_dev *internal_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	struct net_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	vport = ovs_vport_alloc(0, &ovs_internal_vport_ops, parms);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	if (IS_ERR(vport)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 		err = PTR_ERR(vport);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 		goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	dev = alloc_netdev(sizeof(struct internal_dev),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 			   parms->name, NET_NAME_USER, do_setup);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	vport->dev = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	if (!vport->dev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 		err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 		goto error_free_vport;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	vport->dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	if (!vport->dev->tstats) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 		err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 		goto error_free_netdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	dev_net_set(vport->dev, ovs_dp_get_net(vport->dp));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 	internal_dev = internal_dev_priv(vport->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	internal_dev->vport = vport;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	/* Restrict bridge port to current netns. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	if (vport->port_no == OVSP_LOCAL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 		vport->dev->features |= NETIF_F_NETNS_LOCAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	rtnl_lock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	err = register_netdevice(vport->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 		goto error_unlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	vport->dev->priv_destructor = internal_dev_destructor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	dev_set_promiscuity(vport->dev, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	rtnl_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	netif_start_queue(vport->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	return vport;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) error_unlock:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	rtnl_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	free_percpu(dev->tstats);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) error_free_netdev:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	free_netdev(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) error_free_vport:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	ovs_vport_free(vport);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) error:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	return ERR_PTR(err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) static void internal_dev_destroy(struct vport *vport)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	netif_stop_queue(vport->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	rtnl_lock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	dev_set_promiscuity(vport->dev, -1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	/* unregister_netdevice() waits for an RCU grace period. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	unregister_netdevice(vport->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	free_percpu(vport->dev->tstats);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	rtnl_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) static netdev_tx_t internal_dev_recv(struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	struct net_device *netdev = skb->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	if (unlikely(!(netdev->flags & IFF_UP))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 		kfree_skb(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 		netdev->stats.rx_dropped++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 		return NETDEV_TX_OK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	skb_dst_drop(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	nf_reset_ct(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	secpath_reset(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	skb->pkt_type = PACKET_HOST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 	skb->protocol = eth_type_trans(skb, netdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	skb_postpull_rcsum(skb, eth_hdr(skb), ETH_HLEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	dev_sw_netstats_rx_add(netdev, skb->len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	netif_rx(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	return NETDEV_TX_OK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) static struct vport_ops ovs_internal_vport_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	.type		= OVS_VPORT_TYPE_INTERNAL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	.create		= internal_dev_create,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	.destroy	= internal_dev_destroy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	.send		= internal_dev_recv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) int ovs_is_internal_dev(const struct net_device *netdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	return netdev->netdev_ops == &internal_dev_netdev_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) struct vport *ovs_internal_dev_get_vport(struct net_device *netdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	if (!ovs_is_internal_dev(netdev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 		return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	return internal_dev_priv(netdev)->vport;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) int ovs_internal_dev_rtnl_link_register(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 	err = rtnl_link_register(&internal_dev_link_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	err = ovs_vport_ops_register(&ovs_internal_vport_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 		rtnl_link_unregister(&internal_dev_link_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) void ovs_internal_dev_rtnl_link_unregister(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 	ovs_vport_ops_unregister(&ovs_internal_vport_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 	rtnl_link_unregister(&internal_dev_link_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) }