cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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if_macvlan.h (2789B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef _LINUX_IF_MACVLAN_H
      3#define _LINUX_IF_MACVLAN_H
      4
      5#include <linux/if_link.h>
      6#include <linux/if_vlan.h>
      7#include <linux/list.h>
      8#include <linux/netdevice.h>
      9#include <linux/netlink.h>
     10#include <net/netlink.h>
     11#include <linux/u64_stats_sync.h>
     12
     13struct macvlan_port;
     14
     15#define MACVLAN_MC_FILTER_BITS	8
     16#define MACVLAN_MC_FILTER_SZ	(1 << MACVLAN_MC_FILTER_BITS)
     17
     18struct macvlan_dev {
     19	struct net_device	*dev;
     20	struct list_head	list;
     21	struct hlist_node	hlist;
     22	struct macvlan_port	*port;
     23	struct net_device	*lowerdev;
     24	netdevice_tracker	dev_tracker;
     25	void			*accel_priv;
     26	struct vlan_pcpu_stats __percpu *pcpu_stats;
     27
     28	DECLARE_BITMAP(mc_filter, MACVLAN_MC_FILTER_SZ);
     29
     30	netdev_features_t	set_features;
     31	enum macvlan_mode	mode;
     32	u16			flags;
     33	unsigned int		macaddr_count;
     34	u32			bc_queue_len_req;
     35#ifdef CONFIG_NET_POLL_CONTROLLER
     36	struct netpoll		*netpoll;
     37#endif
     38};
     39
     40static inline void macvlan_count_rx(const struct macvlan_dev *vlan,
     41				    unsigned int len, bool success,
     42				    bool multicast)
     43{
     44	if (likely(success)) {
     45		struct vlan_pcpu_stats *pcpu_stats;
     46
     47		pcpu_stats = get_cpu_ptr(vlan->pcpu_stats);
     48		u64_stats_update_begin(&pcpu_stats->syncp);
     49		pcpu_stats->rx_packets++;
     50		pcpu_stats->rx_bytes += len;
     51		if (multicast)
     52			pcpu_stats->rx_multicast++;
     53		u64_stats_update_end(&pcpu_stats->syncp);
     54		put_cpu_ptr(vlan->pcpu_stats);
     55	} else {
     56		this_cpu_inc(vlan->pcpu_stats->rx_errors);
     57	}
     58}
     59
     60extern void macvlan_common_setup(struct net_device *dev);
     61
     62extern int macvlan_common_newlink(struct net *src_net, struct net_device *dev,
     63				  struct nlattr *tb[], struct nlattr *data[],
     64				  struct netlink_ext_ack *extack);
     65
     66extern void macvlan_dellink(struct net_device *dev, struct list_head *head);
     67
     68extern int macvlan_link_register(struct rtnl_link_ops *ops);
     69
     70#if IS_ENABLED(CONFIG_MACVLAN)
     71static inline struct net_device *
     72macvlan_dev_real_dev(const struct net_device *dev)
     73{
     74	struct macvlan_dev *macvlan = netdev_priv(dev);
     75
     76	return macvlan->lowerdev;
     77}
     78#else
     79static inline struct net_device *
     80macvlan_dev_real_dev(const struct net_device *dev)
     81{
     82	BUG();
     83	return NULL;
     84}
     85#endif
     86
     87static inline void *macvlan_accel_priv(struct net_device *dev)
     88{
     89	struct macvlan_dev *macvlan = netdev_priv(dev);
     90
     91	return macvlan->accel_priv;
     92}
     93
     94static inline bool macvlan_supports_dest_filter(struct net_device *dev)
     95{
     96	struct macvlan_dev *macvlan = netdev_priv(dev);
     97
     98	return macvlan->mode == MACVLAN_MODE_PRIVATE ||
     99	       macvlan->mode == MACVLAN_MODE_VEPA ||
    100	       macvlan->mode == MACVLAN_MODE_BRIDGE;
    101}
    102
    103static inline int macvlan_release_l2fw_offload(struct net_device *dev)
    104{
    105	struct macvlan_dev *macvlan = netdev_priv(dev);
    106
    107	macvlan->accel_priv = NULL;
    108	return dev_uc_add(macvlan->lowerdev, dev->dev_addr);
    109}
    110#endif /* _LINUX_IF_MACVLAN_H */