Loading...
1/*
2 * Copyright (C) 2017 Netronome Systems, Inc.
3 *
4 * This software is licensed under the GNU General License Version 2,
5 * June 1991 as shown in the file COPYING in the top-level directory of this
6 * source tree.
7 *
8 * THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS"
9 * WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
10 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
11 * FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE
12 * OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME
13 * THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
14 */
15
16#include <linux/debugfs.h>
17#include <linux/device.h>
18#include <linux/ethtool.h>
19#include <linux/kernel.h>
20#include <linux/list.h>
21#include <linux/netdevice.h>
22#include <linux/ptp_mock.h>
23#include <linux/u64_stats_sync.h>
24#include <net/devlink.h>
25#include <net/udp_tunnel.h>
26#include <net/xdp.h>
27#include <net/macsec.h>
28
29#define DRV_NAME "netdevsim"
30
31#define NSIM_XDP_MAX_MTU 4000
32
33#define NSIM_EA(extack, msg) NL_SET_ERR_MSG_MOD((extack), msg)
34
35#define NSIM_IPSEC_MAX_SA_COUNT 33
36#define NSIM_IPSEC_VALID BIT(31)
37#define NSIM_UDP_TUNNEL_N_PORTS 4
38
39struct nsim_sa {
40 struct xfrm_state *xs;
41 __be32 ipaddr[4];
42 u32 key[4];
43 u32 salt;
44 bool used;
45 bool crypt;
46 bool rx;
47};
48
49struct nsim_ipsec {
50 struct nsim_sa sa[NSIM_IPSEC_MAX_SA_COUNT];
51 struct dentry *pfile;
52 u32 count;
53 u32 tx;
54 u32 ok;
55};
56
57#define NSIM_MACSEC_MAX_SECY_COUNT 3
58#define NSIM_MACSEC_MAX_RXSC_COUNT 1
59struct nsim_rxsc {
60 sci_t sci;
61 bool used;
62};
63
64struct nsim_secy {
65 sci_t sci;
66 struct nsim_rxsc nsim_rxsc[NSIM_MACSEC_MAX_RXSC_COUNT];
67 u8 nsim_rxsc_count;
68 bool used;
69};
70
71struct nsim_macsec {
72 struct nsim_secy nsim_secy[NSIM_MACSEC_MAX_SECY_COUNT];
73 u8 nsim_secy_count;
74};
75
76struct nsim_ethtool_pauseparam {
77 bool rx;
78 bool tx;
79 bool report_stats_rx;
80 bool report_stats_tx;
81};
82
83struct nsim_ethtool {
84 u32 get_err;
85 u32 set_err;
86 u32 channels;
87 struct nsim_ethtool_pauseparam pauseparam;
88 struct ethtool_coalesce coalesce;
89 struct ethtool_ringparam ring;
90 struct ethtool_fecparam fec;
91};
92
93struct nsim_rq {
94 struct napi_struct napi;
95 struct sk_buff_head skb_queue;
96 struct page_pool *page_pool;
97};
98
99struct netdevsim {
100 struct net_device *netdev;
101 struct nsim_dev *nsim_dev;
102 struct nsim_dev_port *nsim_dev_port;
103 struct mock_phc *phc;
104 struct nsim_rq *rq;
105
106 u64 tx_packets;
107 u64 tx_bytes;
108 u64 tx_dropped;
109 struct u64_stats_sync syncp;
110
111 struct nsim_bus_dev *nsim_bus_dev;
112
113 struct bpf_prog *bpf_offloaded;
114 u32 bpf_offloaded_id;
115
116 struct xdp_attachment_info xdp;
117 struct xdp_attachment_info xdp_hw;
118
119 bool bpf_tc_accept;
120 bool bpf_tc_non_bound_accept;
121 bool bpf_xdpdrv_accept;
122 bool bpf_xdpoffload_accept;
123
124 bool bpf_map_accept;
125 struct nsim_ipsec ipsec;
126 struct nsim_macsec macsec;
127 struct {
128 u32 inject_error;
129 u32 sleep;
130 u32 __ports[2][NSIM_UDP_TUNNEL_N_PORTS];
131 u32 (*ports)[NSIM_UDP_TUNNEL_N_PORTS];
132 struct dentry *ddir;
133 struct debugfs_u32_array dfs_ports[2];
134 } udp_ports;
135
136 struct page *page;
137 struct dentry *pp_dfs;
138
139 struct nsim_ethtool ethtool;
140 struct netdevsim __rcu *peer;
141};
142
143struct netdevsim *
144nsim_create(struct nsim_dev *nsim_dev, struct nsim_dev_port *nsim_dev_port);
145void nsim_destroy(struct netdevsim *ns);
146bool netdev_is_nsim(struct net_device *dev);
147
148void nsim_ethtool_init(struct netdevsim *ns);
149
150void nsim_udp_tunnels_debugfs_create(struct nsim_dev *nsim_dev);
151int nsim_udp_tunnels_info_create(struct nsim_dev *nsim_dev,
152 struct net_device *dev);
153void nsim_udp_tunnels_info_destroy(struct net_device *dev);
154
155#ifdef CONFIG_BPF_SYSCALL
156int nsim_bpf_dev_init(struct nsim_dev *nsim_dev);
157void nsim_bpf_dev_exit(struct nsim_dev *nsim_dev);
158int nsim_bpf_init(struct netdevsim *ns);
159void nsim_bpf_uninit(struct netdevsim *ns);
160int nsim_bpf(struct net_device *dev, struct netdev_bpf *bpf);
161int nsim_bpf_disable_tc(struct netdevsim *ns);
162int nsim_bpf_setup_tc_block_cb(enum tc_setup_type type,
163 void *type_data, void *cb_priv);
164#else
165
166static inline int nsim_bpf_dev_init(struct nsim_dev *nsim_dev)
167{
168 return 0;
169}
170
171static inline void nsim_bpf_dev_exit(struct nsim_dev *nsim_dev)
172{
173}
174static inline int nsim_bpf_init(struct netdevsim *ns)
175{
176 return 0;
177}
178
179static inline void nsim_bpf_uninit(struct netdevsim *ns)
180{
181}
182
183static inline int nsim_bpf(struct net_device *dev, struct netdev_bpf *bpf)
184{
185 return -EOPNOTSUPP;
186}
187
188static inline int nsim_bpf_disable_tc(struct netdevsim *ns)
189{
190 return 0;
191}
192
193static inline int
194nsim_bpf_setup_tc_block_cb(enum tc_setup_type type, void *type_data,
195 void *cb_priv)
196{
197 return -EOPNOTSUPP;
198}
199#endif
200
201enum nsim_resource_id {
202 NSIM_RESOURCE_NONE, /* DEVLINK_RESOURCE_ID_PARENT_TOP */
203 NSIM_RESOURCE_IPV4,
204 NSIM_RESOURCE_IPV4_FIB,
205 NSIM_RESOURCE_IPV4_FIB_RULES,
206 NSIM_RESOURCE_IPV6,
207 NSIM_RESOURCE_IPV6_FIB,
208 NSIM_RESOURCE_IPV6_FIB_RULES,
209 NSIM_RESOURCE_NEXTHOPS,
210};
211
212struct nsim_dev_health {
213 struct devlink_health_reporter *empty_reporter;
214 struct devlink_health_reporter *dummy_reporter;
215 struct dentry *ddir;
216 char *recovered_break_msg;
217 u32 binary_len;
218 bool fail_recover;
219};
220
221int nsim_dev_health_init(struct nsim_dev *nsim_dev, struct devlink *devlink);
222void nsim_dev_health_exit(struct nsim_dev *nsim_dev);
223
224struct nsim_dev_hwstats_netdev {
225 struct list_head list;
226 struct net_device *netdev;
227 struct rtnl_hw_stats64 stats;
228 bool enabled;
229 bool fail_enable;
230};
231
232struct nsim_dev_hwstats {
233 struct dentry *ddir;
234 struct dentry *l3_ddir;
235
236 struct mutex hwsdev_list_lock; /* protects hwsdev list(s) */
237 struct list_head l3_list;
238
239 struct notifier_block netdevice_nb;
240 struct delayed_work traffic_dw;
241};
242
243int nsim_dev_hwstats_init(struct nsim_dev *nsim_dev);
244void nsim_dev_hwstats_exit(struct nsim_dev *nsim_dev);
245
246#if IS_ENABLED(CONFIG_PSAMPLE)
247int nsim_dev_psample_init(struct nsim_dev *nsim_dev);
248void nsim_dev_psample_exit(struct nsim_dev *nsim_dev);
249#else
250static inline int nsim_dev_psample_init(struct nsim_dev *nsim_dev)
251{
252 return 0;
253}
254
255static inline void nsim_dev_psample_exit(struct nsim_dev *nsim_dev)
256{
257}
258#endif
259
260enum nsim_dev_port_type {
261 NSIM_DEV_PORT_TYPE_PF,
262 NSIM_DEV_PORT_TYPE_VF,
263};
264
265#define NSIM_DEV_VF_PORT_INDEX_BASE 128
266#define NSIM_DEV_VF_PORT_INDEX_MAX UINT_MAX
267
268struct nsim_dev_port {
269 struct list_head list;
270 struct devlink_port devlink_port;
271 unsigned int port_index;
272 enum nsim_dev_port_type port_type;
273 struct dentry *ddir;
274 struct dentry *rate_parent;
275 char *parent_name;
276 struct netdevsim *ns;
277};
278
279struct nsim_vf_config {
280 int link_state;
281 u16 min_tx_rate;
282 u16 max_tx_rate;
283 u16 vlan;
284 __be16 vlan_proto;
285 u16 qos;
286 u8 vf_mac[ETH_ALEN];
287 bool spoofchk_enabled;
288 bool trusted;
289 bool rss_query_enabled;
290};
291
292struct nsim_dev {
293 struct nsim_bus_dev *nsim_bus_dev;
294 struct nsim_fib_data *fib_data;
295 struct nsim_trap_data *trap_data;
296 struct dentry *ddir;
297 struct dentry *ports_ddir;
298 struct dentry *take_snapshot;
299 struct dentry *nodes_ddir;
300
301 struct nsim_vf_config *vfconfigs;
302
303 struct bpf_offload_dev *bpf_dev;
304 bool bpf_bind_accept;
305 bool bpf_bind_verifier_accept;
306 u32 bpf_bind_verifier_delay;
307 struct dentry *ddir_bpf_bound_progs;
308 u32 prog_id_gen;
309 struct list_head bpf_bound_progs;
310 struct list_head bpf_bound_maps;
311 struct netdev_phys_item_id switch_id;
312 struct list_head port_list;
313 bool fw_update_status;
314 u32 fw_update_overwrite_mask;
315 u32 max_macs;
316 bool test1;
317 bool dont_allow_reload;
318 bool fail_reload;
319 struct devlink_region *dummy_region;
320 struct nsim_dev_health health;
321 struct nsim_dev_hwstats hwstats;
322 struct flow_action_cookie *fa_cookie;
323 spinlock_t fa_cookie_lock; /* protects fa_cookie */
324 bool fail_trap_group_set;
325 bool fail_trap_policer_set;
326 bool fail_trap_policer_counter_get;
327 bool fail_trap_drop_counter_get;
328 struct {
329 struct udp_tunnel_nic_shared utn_shared;
330 u32 __ports[2][NSIM_UDP_TUNNEL_N_PORTS];
331 bool sync_all;
332 bool open_only;
333 bool ipv4_only;
334 bool shared;
335 bool static_iana_vxlan;
336 u32 sleep;
337 } udp_ports;
338 struct nsim_dev_psample *psample;
339 u16 esw_mode;
340};
341
342static inline bool nsim_esw_mode_is_legacy(struct nsim_dev *nsim_dev)
343{
344 return nsim_dev->esw_mode == DEVLINK_ESWITCH_MODE_LEGACY;
345}
346
347static inline bool nsim_esw_mode_is_switchdev(struct nsim_dev *nsim_dev)
348{
349 return nsim_dev->esw_mode == DEVLINK_ESWITCH_MODE_SWITCHDEV;
350}
351
352static inline struct net *nsim_dev_net(struct nsim_dev *nsim_dev)
353{
354 return devlink_net(priv_to_devlink(nsim_dev));
355}
356
357int nsim_dev_init(void);
358void nsim_dev_exit(void);
359int nsim_drv_probe(struct nsim_bus_dev *nsim_bus_dev);
360void nsim_drv_remove(struct nsim_bus_dev *nsim_bus_dev);
361int nsim_drv_port_add(struct nsim_bus_dev *nsim_bus_dev,
362 enum nsim_dev_port_type type,
363 unsigned int port_index);
364int nsim_drv_port_del(struct nsim_bus_dev *nsim_bus_dev,
365 enum nsim_dev_port_type type,
366 unsigned int port_index);
367int nsim_drv_configure_vfs(struct nsim_bus_dev *nsim_bus_dev,
368 unsigned int num_vfs);
369
370unsigned int nsim_dev_get_vfs(struct nsim_dev *nsim_dev);
371
372struct nsim_fib_data *nsim_fib_create(struct devlink *devlink,
373 struct netlink_ext_ack *extack);
374void nsim_fib_destroy(struct devlink *devlink, struct nsim_fib_data *fib_data);
375u64 nsim_fib_get_val(struct nsim_fib_data *fib_data,
376 enum nsim_resource_id res_id, bool max);
377
378static inline bool nsim_dev_port_is_pf(struct nsim_dev_port *nsim_dev_port)
379{
380 return nsim_dev_port->port_type == NSIM_DEV_PORT_TYPE_PF;
381}
382
383static inline bool nsim_dev_port_is_vf(struct nsim_dev_port *nsim_dev_port)
384{
385 return nsim_dev_port->port_type == NSIM_DEV_PORT_TYPE_VF;
386}
387#if IS_ENABLED(CONFIG_XFRM_OFFLOAD)
388void nsim_ipsec_init(struct netdevsim *ns);
389void nsim_ipsec_teardown(struct netdevsim *ns);
390bool nsim_ipsec_tx(struct netdevsim *ns, struct sk_buff *skb);
391#else
392static inline void nsim_ipsec_init(struct netdevsim *ns)
393{
394}
395
396static inline void nsim_ipsec_teardown(struct netdevsim *ns)
397{
398}
399
400static inline bool nsim_ipsec_tx(struct netdevsim *ns, struct sk_buff *skb)
401{
402 return true;
403}
404#endif
405
406#if IS_ENABLED(CONFIG_MACSEC)
407void nsim_macsec_init(struct netdevsim *ns);
408void nsim_macsec_teardown(struct netdevsim *ns);
409#else
410static inline void nsim_macsec_init(struct netdevsim *ns)
411{
412}
413
414static inline void nsim_macsec_teardown(struct netdevsim *ns)
415{
416}
417#endif
418
419struct nsim_bus_dev {
420 struct device dev;
421 struct list_head list;
422 unsigned int port_count;
423 unsigned int num_queues; /* Number of queues for each port on this bus */
424 struct net *initial_net; /* Purpose of this is to carry net pointer
425 * during the probe time only.
426 */
427 unsigned int max_vfs;
428 unsigned int num_vfs;
429 bool init;
430};
431
432int nsim_bus_init(void);
433void nsim_bus_exit(void);
1/*
2 * Copyright (C) 2017 Netronome Systems, Inc.
3 *
4 * This software is licensed under the GNU General License Version 2,
5 * June 1991 as shown in the file COPYING in the top-level directory of this
6 * source tree.
7 *
8 * THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS"
9 * WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
10 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
11 * FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE
12 * OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME
13 * THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
14 */
15
16#include <linux/debugfs.h>
17#include <linux/device.h>
18#include <linux/ethtool.h>
19#include <linux/kernel.h>
20#include <linux/list.h>
21#include <linux/netdevice.h>
22#include <linux/ptp_mock.h>
23#include <linux/u64_stats_sync.h>
24#include <net/devlink.h>
25#include <net/udp_tunnel.h>
26#include <net/xdp.h>
27#include <net/macsec.h>
28
29#define DRV_NAME "netdevsim"
30
31#define NSIM_XDP_MAX_MTU 4000
32
33#define NSIM_EA(extack, msg) NL_SET_ERR_MSG_MOD((extack), msg)
34
35#define NSIM_IPSEC_MAX_SA_COUNT 33
36#define NSIM_IPSEC_VALID BIT(31)
37#define NSIM_UDP_TUNNEL_N_PORTS 4
38
39struct nsim_sa {
40 struct xfrm_state *xs;
41 __be32 ipaddr[4];
42 u32 key[4];
43 u32 salt;
44 bool used;
45 bool crypt;
46 bool rx;
47};
48
49struct nsim_ipsec {
50 struct nsim_sa sa[NSIM_IPSEC_MAX_SA_COUNT];
51 struct dentry *pfile;
52 u32 count;
53 u32 tx;
54 u32 ok;
55};
56
57#define NSIM_MACSEC_MAX_SECY_COUNT 3
58#define NSIM_MACSEC_MAX_RXSC_COUNT 1
59struct nsim_rxsc {
60 sci_t sci;
61 bool used;
62};
63
64struct nsim_secy {
65 sci_t sci;
66 struct nsim_rxsc nsim_rxsc[NSIM_MACSEC_MAX_RXSC_COUNT];
67 u8 nsim_rxsc_count;
68 bool used;
69};
70
71struct nsim_macsec {
72 struct nsim_secy nsim_secy[NSIM_MACSEC_MAX_SECY_COUNT];
73 u8 nsim_secy_count;
74};
75
76struct nsim_ethtool_pauseparam {
77 bool rx;
78 bool tx;
79 bool report_stats_rx;
80 bool report_stats_tx;
81};
82
83struct nsim_ethtool {
84 u32 get_err;
85 u32 set_err;
86 u32 channels;
87 struct nsim_ethtool_pauseparam pauseparam;
88 struct ethtool_coalesce coalesce;
89 struct ethtool_ringparam ring;
90 struct ethtool_fecparam fec;
91};
92
93struct netdevsim {
94 struct net_device *netdev;
95 struct nsim_dev *nsim_dev;
96 struct nsim_dev_port *nsim_dev_port;
97 struct mock_phc *phc;
98
99 u64 tx_packets;
100 u64 tx_bytes;
101 u64 tx_dropped;
102 struct u64_stats_sync syncp;
103
104 struct nsim_bus_dev *nsim_bus_dev;
105
106 struct bpf_prog *bpf_offloaded;
107 u32 bpf_offloaded_id;
108
109 struct xdp_attachment_info xdp;
110 struct xdp_attachment_info xdp_hw;
111
112 bool bpf_tc_accept;
113 bool bpf_tc_non_bound_accept;
114 bool bpf_xdpdrv_accept;
115 bool bpf_xdpoffload_accept;
116
117 bool bpf_map_accept;
118 struct nsim_ipsec ipsec;
119 struct nsim_macsec macsec;
120 struct {
121 u32 inject_error;
122 u32 sleep;
123 u32 __ports[2][NSIM_UDP_TUNNEL_N_PORTS];
124 u32 (*ports)[NSIM_UDP_TUNNEL_N_PORTS];
125 struct debugfs_u32_array dfs_ports[2];
126 } udp_ports;
127
128 struct nsim_ethtool ethtool;
129 struct netdevsim __rcu *peer;
130};
131
132struct netdevsim *
133nsim_create(struct nsim_dev *nsim_dev, struct nsim_dev_port *nsim_dev_port);
134void nsim_destroy(struct netdevsim *ns);
135bool netdev_is_nsim(struct net_device *dev);
136
137void nsim_ethtool_init(struct netdevsim *ns);
138
139void nsim_udp_tunnels_debugfs_create(struct nsim_dev *nsim_dev);
140int nsim_udp_tunnels_info_create(struct nsim_dev *nsim_dev,
141 struct net_device *dev);
142void nsim_udp_tunnels_info_destroy(struct net_device *dev);
143
144#ifdef CONFIG_BPF_SYSCALL
145int nsim_bpf_dev_init(struct nsim_dev *nsim_dev);
146void nsim_bpf_dev_exit(struct nsim_dev *nsim_dev);
147int nsim_bpf_init(struct netdevsim *ns);
148void nsim_bpf_uninit(struct netdevsim *ns);
149int nsim_bpf(struct net_device *dev, struct netdev_bpf *bpf);
150int nsim_bpf_disable_tc(struct netdevsim *ns);
151int nsim_bpf_setup_tc_block_cb(enum tc_setup_type type,
152 void *type_data, void *cb_priv);
153#else
154
155static inline int nsim_bpf_dev_init(struct nsim_dev *nsim_dev)
156{
157 return 0;
158}
159
160static inline void nsim_bpf_dev_exit(struct nsim_dev *nsim_dev)
161{
162}
163static inline int nsim_bpf_init(struct netdevsim *ns)
164{
165 return 0;
166}
167
168static inline void nsim_bpf_uninit(struct netdevsim *ns)
169{
170}
171
172static inline int nsim_bpf(struct net_device *dev, struct netdev_bpf *bpf)
173{
174 return -EOPNOTSUPP;
175}
176
177static inline int nsim_bpf_disable_tc(struct netdevsim *ns)
178{
179 return 0;
180}
181
182static inline int
183nsim_bpf_setup_tc_block_cb(enum tc_setup_type type, void *type_data,
184 void *cb_priv)
185{
186 return -EOPNOTSUPP;
187}
188#endif
189
190enum nsim_resource_id {
191 NSIM_RESOURCE_NONE, /* DEVLINK_RESOURCE_ID_PARENT_TOP */
192 NSIM_RESOURCE_IPV4,
193 NSIM_RESOURCE_IPV4_FIB,
194 NSIM_RESOURCE_IPV4_FIB_RULES,
195 NSIM_RESOURCE_IPV6,
196 NSIM_RESOURCE_IPV6_FIB,
197 NSIM_RESOURCE_IPV6_FIB_RULES,
198 NSIM_RESOURCE_NEXTHOPS,
199};
200
201struct nsim_dev_health {
202 struct devlink_health_reporter *empty_reporter;
203 struct devlink_health_reporter *dummy_reporter;
204 struct dentry *ddir;
205 char *recovered_break_msg;
206 u32 binary_len;
207 bool fail_recover;
208};
209
210int nsim_dev_health_init(struct nsim_dev *nsim_dev, struct devlink *devlink);
211void nsim_dev_health_exit(struct nsim_dev *nsim_dev);
212
213struct nsim_dev_hwstats_netdev {
214 struct list_head list;
215 struct net_device *netdev;
216 struct rtnl_hw_stats64 stats;
217 bool enabled;
218 bool fail_enable;
219};
220
221struct nsim_dev_hwstats {
222 struct dentry *ddir;
223 struct dentry *l3_ddir;
224
225 struct mutex hwsdev_list_lock; /* protects hwsdev list(s) */
226 struct list_head l3_list;
227
228 struct notifier_block netdevice_nb;
229 struct delayed_work traffic_dw;
230};
231
232int nsim_dev_hwstats_init(struct nsim_dev *nsim_dev);
233void nsim_dev_hwstats_exit(struct nsim_dev *nsim_dev);
234
235#if IS_ENABLED(CONFIG_PSAMPLE)
236int nsim_dev_psample_init(struct nsim_dev *nsim_dev);
237void nsim_dev_psample_exit(struct nsim_dev *nsim_dev);
238#else
239static inline int nsim_dev_psample_init(struct nsim_dev *nsim_dev)
240{
241 return 0;
242}
243
244static inline void nsim_dev_psample_exit(struct nsim_dev *nsim_dev)
245{
246}
247#endif
248
249enum nsim_dev_port_type {
250 NSIM_DEV_PORT_TYPE_PF,
251 NSIM_DEV_PORT_TYPE_VF,
252};
253
254#define NSIM_DEV_VF_PORT_INDEX_BASE 128
255#define NSIM_DEV_VF_PORT_INDEX_MAX UINT_MAX
256
257struct nsim_dev_port {
258 struct list_head list;
259 struct devlink_port devlink_port;
260 unsigned int port_index;
261 enum nsim_dev_port_type port_type;
262 struct dentry *ddir;
263 struct dentry *rate_parent;
264 char *parent_name;
265 struct netdevsim *ns;
266};
267
268struct nsim_vf_config {
269 int link_state;
270 u16 min_tx_rate;
271 u16 max_tx_rate;
272 u16 vlan;
273 __be16 vlan_proto;
274 u16 qos;
275 u8 vf_mac[ETH_ALEN];
276 bool spoofchk_enabled;
277 bool trusted;
278 bool rss_query_enabled;
279};
280
281struct nsim_dev {
282 struct nsim_bus_dev *nsim_bus_dev;
283 struct nsim_fib_data *fib_data;
284 struct nsim_trap_data *trap_data;
285 struct dentry *ddir;
286 struct dentry *ports_ddir;
287 struct dentry *take_snapshot;
288 struct dentry *nodes_ddir;
289
290 struct nsim_vf_config *vfconfigs;
291
292 struct bpf_offload_dev *bpf_dev;
293 bool bpf_bind_accept;
294 bool bpf_bind_verifier_accept;
295 u32 bpf_bind_verifier_delay;
296 struct dentry *ddir_bpf_bound_progs;
297 u32 prog_id_gen;
298 struct list_head bpf_bound_progs;
299 struct list_head bpf_bound_maps;
300 struct netdev_phys_item_id switch_id;
301 struct list_head port_list;
302 bool fw_update_status;
303 u32 fw_update_overwrite_mask;
304 u32 max_macs;
305 bool test1;
306 bool dont_allow_reload;
307 bool fail_reload;
308 struct devlink_region *dummy_region;
309 struct nsim_dev_health health;
310 struct nsim_dev_hwstats hwstats;
311 struct flow_action_cookie *fa_cookie;
312 spinlock_t fa_cookie_lock; /* protects fa_cookie */
313 bool fail_trap_group_set;
314 bool fail_trap_policer_set;
315 bool fail_trap_policer_counter_get;
316 bool fail_trap_drop_counter_get;
317 struct {
318 struct udp_tunnel_nic_shared utn_shared;
319 u32 __ports[2][NSIM_UDP_TUNNEL_N_PORTS];
320 bool sync_all;
321 bool open_only;
322 bool ipv4_only;
323 bool shared;
324 bool static_iana_vxlan;
325 u32 sleep;
326 } udp_ports;
327 struct nsim_dev_psample *psample;
328 u16 esw_mode;
329};
330
331static inline bool nsim_esw_mode_is_legacy(struct nsim_dev *nsim_dev)
332{
333 return nsim_dev->esw_mode == DEVLINK_ESWITCH_MODE_LEGACY;
334}
335
336static inline bool nsim_esw_mode_is_switchdev(struct nsim_dev *nsim_dev)
337{
338 return nsim_dev->esw_mode == DEVLINK_ESWITCH_MODE_SWITCHDEV;
339}
340
341static inline struct net *nsim_dev_net(struct nsim_dev *nsim_dev)
342{
343 return devlink_net(priv_to_devlink(nsim_dev));
344}
345
346int nsim_dev_init(void);
347void nsim_dev_exit(void);
348int nsim_drv_probe(struct nsim_bus_dev *nsim_bus_dev);
349void nsim_drv_remove(struct nsim_bus_dev *nsim_bus_dev);
350int nsim_drv_port_add(struct nsim_bus_dev *nsim_bus_dev,
351 enum nsim_dev_port_type type,
352 unsigned int port_index);
353int nsim_drv_port_del(struct nsim_bus_dev *nsim_bus_dev,
354 enum nsim_dev_port_type type,
355 unsigned int port_index);
356int nsim_drv_configure_vfs(struct nsim_bus_dev *nsim_bus_dev,
357 unsigned int num_vfs);
358
359unsigned int nsim_dev_get_vfs(struct nsim_dev *nsim_dev);
360
361struct nsim_fib_data *nsim_fib_create(struct devlink *devlink,
362 struct netlink_ext_ack *extack);
363void nsim_fib_destroy(struct devlink *devlink, struct nsim_fib_data *fib_data);
364u64 nsim_fib_get_val(struct nsim_fib_data *fib_data,
365 enum nsim_resource_id res_id, bool max);
366
367static inline bool nsim_dev_port_is_pf(struct nsim_dev_port *nsim_dev_port)
368{
369 return nsim_dev_port->port_type == NSIM_DEV_PORT_TYPE_PF;
370}
371
372static inline bool nsim_dev_port_is_vf(struct nsim_dev_port *nsim_dev_port)
373{
374 return nsim_dev_port->port_type == NSIM_DEV_PORT_TYPE_VF;
375}
376#if IS_ENABLED(CONFIG_XFRM_OFFLOAD)
377void nsim_ipsec_init(struct netdevsim *ns);
378void nsim_ipsec_teardown(struct netdevsim *ns);
379bool nsim_ipsec_tx(struct netdevsim *ns, struct sk_buff *skb);
380#else
381static inline void nsim_ipsec_init(struct netdevsim *ns)
382{
383}
384
385static inline void nsim_ipsec_teardown(struct netdevsim *ns)
386{
387}
388
389static inline bool nsim_ipsec_tx(struct netdevsim *ns, struct sk_buff *skb)
390{
391 return true;
392}
393#endif
394
395#if IS_ENABLED(CONFIG_MACSEC)
396void nsim_macsec_init(struct netdevsim *ns);
397void nsim_macsec_teardown(struct netdevsim *ns);
398#else
399static inline void nsim_macsec_init(struct netdevsim *ns)
400{
401}
402
403static inline void nsim_macsec_teardown(struct netdevsim *ns)
404{
405}
406#endif
407
408struct nsim_bus_dev {
409 struct device dev;
410 struct list_head list;
411 unsigned int port_count;
412 unsigned int num_queues; /* Number of queues for each port on this bus */
413 struct net *initial_net; /* Purpose of this is to carry net pointer
414 * during the probe time only.
415 */
416 unsigned int max_vfs;
417 unsigned int num_vfs;
418 bool init;
419};
420
421int nsim_bus_init(void);
422void nsim_bus_exit(void);