293 строки
7.1 KiB
C
293 строки
7.1 KiB
C
/*
|
|
* Copyright (C) 2017 Netronome Systems, Inc.
|
|
*
|
|
* This software is licensed under the GNU General License Version 2,
|
|
* June 1991 as shown in the file COPYING in the top-level directory of this
|
|
* source tree.
|
|
*
|
|
* THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS"
|
|
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
|
|
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE
|
|
* OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME
|
|
* THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
|
|
*/
|
|
|
|
#include <linux/debugfs.h>
|
|
#include <linux/device.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/list.h>
|
|
#include <linux/netdevice.h>
|
|
#include <linux/u64_stats_sync.h>
|
|
#include <net/devlink.h>
|
|
#include <net/udp_tunnel.h>
|
|
#include <net/xdp.h>
|
|
|
|
#define DRV_NAME "netdevsim"
|
|
|
|
#define NSIM_XDP_MAX_MTU 4000
|
|
|
|
#define NSIM_EA(extack, msg) NL_SET_ERR_MSG_MOD((extack), msg)
|
|
|
|
#define NSIM_IPSEC_MAX_SA_COUNT 33
|
|
#define NSIM_IPSEC_VALID BIT(31)
|
|
#define NSIM_UDP_TUNNEL_N_PORTS 4
|
|
|
|
struct nsim_sa {
|
|
struct xfrm_state *xs;
|
|
__be32 ipaddr[4];
|
|
u32 key[4];
|
|
u32 salt;
|
|
bool used;
|
|
bool crypt;
|
|
bool rx;
|
|
};
|
|
|
|
struct nsim_ipsec {
|
|
struct nsim_sa sa[NSIM_IPSEC_MAX_SA_COUNT];
|
|
struct dentry *pfile;
|
|
u32 count;
|
|
u32 tx;
|
|
u32 ok;
|
|
};
|
|
|
|
struct nsim_ethtool {
|
|
bool rx;
|
|
bool tx;
|
|
bool report_stats_rx;
|
|
bool report_stats_tx;
|
|
};
|
|
|
|
struct netdevsim {
|
|
struct net_device *netdev;
|
|
struct nsim_dev *nsim_dev;
|
|
struct nsim_dev_port *nsim_dev_port;
|
|
|
|
u64 tx_packets;
|
|
u64 tx_bytes;
|
|
struct u64_stats_sync syncp;
|
|
|
|
struct nsim_bus_dev *nsim_bus_dev;
|
|
|
|
struct bpf_prog *bpf_offloaded;
|
|
u32 bpf_offloaded_id;
|
|
|
|
struct xdp_attachment_info xdp;
|
|
struct xdp_attachment_info xdp_hw;
|
|
|
|
bool bpf_tc_accept;
|
|
bool bpf_tc_non_bound_accept;
|
|
bool bpf_xdpdrv_accept;
|
|
bool bpf_xdpoffload_accept;
|
|
|
|
bool bpf_map_accept;
|
|
struct nsim_ipsec ipsec;
|
|
struct {
|
|
u32 inject_error;
|
|
u32 sleep;
|
|
u32 __ports[2][NSIM_UDP_TUNNEL_N_PORTS];
|
|
u32 (*ports)[NSIM_UDP_TUNNEL_N_PORTS];
|
|
struct debugfs_u32_array dfs_ports[2];
|
|
} udp_ports;
|
|
|
|
struct nsim_ethtool ethtool;
|
|
};
|
|
|
|
struct netdevsim *
|
|
nsim_create(struct nsim_dev *nsim_dev, struct nsim_dev_port *nsim_dev_port);
|
|
void nsim_destroy(struct netdevsim *ns);
|
|
|
|
void nsim_ethtool_init(struct netdevsim *ns);
|
|
|
|
void nsim_udp_tunnels_debugfs_create(struct nsim_dev *nsim_dev);
|
|
int nsim_udp_tunnels_info_create(struct nsim_dev *nsim_dev,
|
|
struct net_device *dev);
|
|
void nsim_udp_tunnels_info_destroy(struct net_device *dev);
|
|
|
|
#ifdef CONFIG_BPF_SYSCALL
|
|
int nsim_bpf_dev_init(struct nsim_dev *nsim_dev);
|
|
void nsim_bpf_dev_exit(struct nsim_dev *nsim_dev);
|
|
int nsim_bpf_init(struct netdevsim *ns);
|
|
void nsim_bpf_uninit(struct netdevsim *ns);
|
|
int nsim_bpf(struct net_device *dev, struct netdev_bpf *bpf);
|
|
int nsim_bpf_disable_tc(struct netdevsim *ns);
|
|
int nsim_bpf_setup_tc_block_cb(enum tc_setup_type type,
|
|
void *type_data, void *cb_priv);
|
|
#else
|
|
|
|
static inline int nsim_bpf_dev_init(struct nsim_dev *nsim_dev)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void nsim_bpf_dev_exit(struct nsim_dev *nsim_dev)
|
|
{
|
|
}
|
|
static inline int nsim_bpf_init(struct netdevsim *ns)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void nsim_bpf_uninit(struct netdevsim *ns)
|
|
{
|
|
}
|
|
|
|
static inline int nsim_bpf(struct net_device *dev, struct netdev_bpf *bpf)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline int nsim_bpf_disable_tc(struct netdevsim *ns)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int
|
|
nsim_bpf_setup_tc_block_cb(enum tc_setup_type type, void *type_data,
|
|
void *cb_priv)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
#endif
|
|
|
|
enum nsim_resource_id {
|
|
NSIM_RESOURCE_NONE, /* DEVLINK_RESOURCE_ID_PARENT_TOP */
|
|
NSIM_RESOURCE_IPV4,
|
|
NSIM_RESOURCE_IPV4_FIB,
|
|
NSIM_RESOURCE_IPV4_FIB_RULES,
|
|
NSIM_RESOURCE_IPV6,
|
|
NSIM_RESOURCE_IPV6_FIB,
|
|
NSIM_RESOURCE_IPV6_FIB_RULES,
|
|
};
|
|
|
|
struct nsim_dev_health {
|
|
struct devlink_health_reporter *empty_reporter;
|
|
struct devlink_health_reporter *dummy_reporter;
|
|
struct dentry *ddir;
|
|
char *recovered_break_msg;
|
|
u32 binary_len;
|
|
bool fail_recover;
|
|
};
|
|
|
|
int nsim_dev_health_init(struct nsim_dev *nsim_dev, struct devlink *devlink);
|
|
void nsim_dev_health_exit(struct nsim_dev *nsim_dev);
|
|
|
|
struct nsim_dev_port {
|
|
struct list_head list;
|
|
struct devlink_port devlink_port;
|
|
unsigned int port_index;
|
|
struct dentry *ddir;
|
|
struct netdevsim *ns;
|
|
};
|
|
|
|
struct nsim_dev {
|
|
struct nsim_bus_dev *nsim_bus_dev;
|
|
struct nsim_fib_data *fib_data;
|
|
struct nsim_trap_data *trap_data;
|
|
struct dentry *ddir;
|
|
struct dentry *ports_ddir;
|
|
struct dentry *take_snapshot;
|
|
struct bpf_offload_dev *bpf_dev;
|
|
bool bpf_bind_accept;
|
|
u32 bpf_bind_verifier_delay;
|
|
struct dentry *ddir_bpf_bound_progs;
|
|
u32 prog_id_gen;
|
|
struct list_head bpf_bound_progs;
|
|
struct list_head bpf_bound_maps;
|
|
struct netdev_phys_item_id switch_id;
|
|
struct list_head port_list;
|
|
struct mutex port_list_lock; /* protects port list */
|
|
bool fw_update_status;
|
|
u32 fw_update_overwrite_mask;
|
|
u32 max_macs;
|
|
bool test1;
|
|
bool dont_allow_reload;
|
|
bool fail_reload;
|
|
struct devlink_region *dummy_region;
|
|
struct nsim_dev_health health;
|
|
struct flow_action_cookie *fa_cookie;
|
|
spinlock_t fa_cookie_lock; /* protects fa_cookie */
|
|
bool fail_trap_group_set;
|
|
bool fail_trap_policer_set;
|
|
bool fail_trap_policer_counter_get;
|
|
struct {
|
|
struct udp_tunnel_nic_shared utn_shared;
|
|
u32 __ports[2][NSIM_UDP_TUNNEL_N_PORTS];
|
|
bool sync_all;
|
|
bool open_only;
|
|
bool ipv4_only;
|
|
bool shared;
|
|
bool static_iana_vxlan;
|
|
u32 sleep;
|
|
} udp_ports;
|
|
};
|
|
|
|
static inline struct net *nsim_dev_net(struct nsim_dev *nsim_dev)
|
|
{
|
|
return devlink_net(priv_to_devlink(nsim_dev));
|
|
}
|
|
|
|
int nsim_dev_init(void);
|
|
void nsim_dev_exit(void);
|
|
int nsim_dev_probe(struct nsim_bus_dev *nsim_bus_dev);
|
|
void nsim_dev_remove(struct nsim_bus_dev *nsim_bus_dev);
|
|
int nsim_dev_port_add(struct nsim_bus_dev *nsim_bus_dev,
|
|
unsigned int port_index);
|
|
int nsim_dev_port_del(struct nsim_bus_dev *nsim_bus_dev,
|
|
unsigned int port_index);
|
|
|
|
struct nsim_fib_data *nsim_fib_create(struct devlink *devlink,
|
|
struct netlink_ext_ack *extack);
|
|
void nsim_fib_destroy(struct devlink *devlink, struct nsim_fib_data *fib_data);
|
|
u64 nsim_fib_get_val(struct nsim_fib_data *fib_data,
|
|
enum nsim_resource_id res_id, bool max);
|
|
|
|
#if IS_ENABLED(CONFIG_XFRM_OFFLOAD)
|
|
void nsim_ipsec_init(struct netdevsim *ns);
|
|
void nsim_ipsec_teardown(struct netdevsim *ns);
|
|
bool nsim_ipsec_tx(struct netdevsim *ns, struct sk_buff *skb);
|
|
#else
|
|
static inline void nsim_ipsec_init(struct netdevsim *ns)
|
|
{
|
|
}
|
|
|
|
static inline void nsim_ipsec_teardown(struct netdevsim *ns)
|
|
{
|
|
}
|
|
|
|
static inline bool nsim_ipsec_tx(struct netdevsim *ns, struct sk_buff *skb)
|
|
{
|
|
return true;
|
|
}
|
|
#endif
|
|
|
|
struct nsim_vf_config {
|
|
int link_state;
|
|
u16 min_tx_rate;
|
|
u16 max_tx_rate;
|
|
u16 vlan;
|
|
__be16 vlan_proto;
|
|
u16 qos;
|
|
u8 vf_mac[ETH_ALEN];
|
|
bool spoofchk_enabled;
|
|
bool trusted;
|
|
bool rss_query_enabled;
|
|
};
|
|
|
|
struct nsim_bus_dev {
|
|
struct device dev;
|
|
struct list_head list;
|
|
unsigned int port_count;
|
|
struct net *initial_net; /* Purpose of this is to carry net pointer
|
|
* during the probe time only.
|
|
*/
|
|
unsigned int num_vfs;
|
|
struct nsim_vf_config *vfconfigs;
|
|
/* Lock for devlink->reload_enabled in netdevsim module */
|
|
struct mutex nsim_bus_reload_lock;
|
|
bool init;
|
|
};
|
|
|
|
int nsim_bus_init(void);
|
|
void nsim_bus_exit(void);
|