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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/net/netdevsim/netdevsim.h | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/net/netdevsim/netdevsim.h')
-rw-r--r-- | drivers/net/netdevsim/netdevsim.h | 383 |
1 files changed, 383 insertions, 0 deletions
diff --git a/drivers/net/netdevsim/netdevsim.h b/drivers/net/netdevsim/netdevsim.h new file mode 100644 index 000000000..7d8ed8d8d --- /dev/null +++ b/drivers/net/netdevsim/netdevsim.h @@ -0,0 +1,383 @@ +/* + * 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/ethtool.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_pauseparam { + bool rx; + bool tx; + bool report_stats_rx; + bool report_stats_tx; +}; + +struct nsim_ethtool { + u32 get_err; + u32 set_err; + u32 channels; + struct nsim_ethtool_pauseparam pauseparam; + struct ethtool_coalesce coalesce; + struct ethtool_ringparam ring; + struct ethtool_fecparam fec; +}; + +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, + NSIM_RESOURCE_NEXTHOPS, +}; + +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_hwstats_netdev { + struct list_head list; + struct net_device *netdev; + struct rtnl_hw_stats64 stats; + bool enabled; + bool fail_enable; +}; + +struct nsim_dev_hwstats { + struct dentry *ddir; + struct dentry *l3_ddir; + + struct mutex hwsdev_list_lock; /* protects hwsdev list(s) */ + struct list_head l3_list; + + struct notifier_block netdevice_nb; + struct delayed_work traffic_dw; +}; + +int nsim_dev_hwstats_init(struct nsim_dev *nsim_dev); +void nsim_dev_hwstats_exit(struct nsim_dev *nsim_dev); + +#if IS_ENABLED(CONFIG_PSAMPLE) +int nsim_dev_psample_init(struct nsim_dev *nsim_dev); +void nsim_dev_psample_exit(struct nsim_dev *nsim_dev); +#else +static inline int nsim_dev_psample_init(struct nsim_dev *nsim_dev) +{ + return 0; +} + +static inline void nsim_dev_psample_exit(struct nsim_dev *nsim_dev) +{ +} +#endif + +enum nsim_dev_port_type { + NSIM_DEV_PORT_TYPE_PF, + NSIM_DEV_PORT_TYPE_VF, +}; + +#define NSIM_DEV_VF_PORT_INDEX_BASE 128 +#define NSIM_DEV_VF_PORT_INDEX_MAX UINT_MAX + +struct nsim_dev_port { + struct list_head list; + struct devlink_port devlink_port; + unsigned int port_index; + enum nsim_dev_port_type port_type; + struct dentry *ddir; + struct dentry *rate_parent; + char *parent_name; + struct netdevsim *ns; +}; + +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_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 dentry *nodes_ddir; + + struct nsim_vf_config *vfconfigs; + + struct bpf_offload_dev *bpf_dev; + bool bpf_bind_accept; + bool bpf_bind_verifier_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; + 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 nsim_dev_hwstats hwstats; + 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; + bool fail_trap_drop_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; + struct nsim_dev_psample *psample; + u16 esw_mode; +}; + +static inline bool nsim_esw_mode_is_legacy(struct nsim_dev *nsim_dev) +{ + return nsim_dev->esw_mode == DEVLINK_ESWITCH_MODE_LEGACY; +} + +static inline bool nsim_esw_mode_is_switchdev(struct nsim_dev *nsim_dev) +{ + return nsim_dev->esw_mode == DEVLINK_ESWITCH_MODE_SWITCHDEV; +} + +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_drv_probe(struct nsim_bus_dev *nsim_bus_dev); +void nsim_drv_remove(struct nsim_bus_dev *nsim_bus_dev); +int nsim_drv_port_add(struct nsim_bus_dev *nsim_bus_dev, + enum nsim_dev_port_type type, + unsigned int port_index); +int nsim_drv_port_del(struct nsim_bus_dev *nsim_bus_dev, + enum nsim_dev_port_type type, + unsigned int port_index); +int nsim_drv_configure_vfs(struct nsim_bus_dev *nsim_bus_dev, + unsigned int num_vfs); + +unsigned int nsim_dev_get_vfs(struct nsim_dev *nsim_dev); + +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); + +static inline bool nsim_dev_port_is_pf(struct nsim_dev_port *nsim_dev_port) +{ + return nsim_dev_port->port_type == NSIM_DEV_PORT_TYPE_PF; +} + +static inline bool nsim_dev_port_is_vf(struct nsim_dev_port *nsim_dev_port) +{ + return nsim_dev_port->port_type == NSIM_DEV_PORT_TYPE_VF; +} +#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_bus_dev { + struct device dev; + struct list_head list; + unsigned int port_count; + unsigned int num_queues; /* Number of queues for each port on this bus */ + struct net *initial_net; /* Purpose of this is to carry net pointer + * during the probe time only. + */ + unsigned int max_vfs; + unsigned int num_vfs; + bool init; +}; + +int nsim_bus_init(void); +void nsim_bus_exit(void); |