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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/net/netdevsim/netdevsim.h
parentInitial commit. (diff)
downloadlinux-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.h383
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);