1 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
2 /* Copyright (c) 2019-2020 Marvell International Ltd. All rights reserved. */
3
4 #ifndef _PRESTERA_H_
5 #define _PRESTERA_H_
6
7 #include <linux/notifier.h>
8 #include <linux/skbuff.h>
9 #include <linux/workqueue.h>
10 #include <linux/phylink.h>
11 #include <net/devlink.h>
12 #include <uapi/linux/if_ether.h>
13
14 #define PRESTERA_DRV_NAME "prestera"
15
16 #define PRESTERA_DEFAULT_VID 1
17
18 struct prestera_fw_rev {
19 u16 maj;
20 u16 min;
21 u16 sub;
22 };
23
24 struct prestera_flood_domain {
25 struct prestera_switch *sw;
26 struct list_head flood_domain_port_list;
27 u32 idx;
28 };
29
30 struct prestera_mdb_entry {
31 struct prestera_switch *sw;
32 struct prestera_flood_domain *flood_domain;
33 unsigned char addr[ETH_ALEN];
34 u16 vid;
35 };
36
37 struct prestera_flood_domain_port {
38 struct prestera_flood_domain *flood_domain;
39 struct net_device *dev;
40 struct list_head flood_domain_port_node;
41 u16 vid;
42 };
43
44 struct prestera_port_stats {
45 u64 good_octets_received;
46 u64 bad_octets_received;
47 u64 mac_trans_error;
48 u64 broadcast_frames_received;
49 u64 multicast_frames_received;
50 u64 frames_64_octets;
51 u64 frames_65_to_127_octets;
52 u64 frames_128_to_255_octets;
53 u64 frames_256_to_511_octets;
54 u64 frames_512_to_1023_octets;
55 u64 frames_1024_to_max_octets;
56 u64 excessive_collision;
57 u64 multicast_frames_sent;
58 u64 broadcast_frames_sent;
59 u64 fc_sent;
60 u64 fc_received;
61 u64 buffer_overrun;
62 u64 undersize;
63 u64 fragments;
64 u64 oversize;
65 u64 jabber;
66 u64 rx_error_frame_received;
67 u64 bad_crc;
68 u64 collisions;
69 u64 late_collision;
70 u64 unicast_frames_received;
71 u64 unicast_frames_sent;
72 u64 sent_multiple;
73 u64 sent_deferred;
74 u64 good_octets_sent;
75 };
76
77 #define PRESTERA_AP_PORT_MAX (10)
78
79 struct prestera_port_caps {
80 u64 supp_link_modes;
81 u8 supp_fec;
82 u8 type;
83 u8 transceiver;
84 };
85
86 struct prestera_lag {
87 struct net_device *dev;
88 struct list_head members;
89 u16 member_count;
90 u16 lag_id;
91 };
92
93 struct prestera_flow_block;
94
95 struct prestera_port_mac_state {
96 bool valid;
97 u32 mode;
98 u32 speed;
99 bool oper;
100 u8 duplex;
101 u8 fc;
102 u8 fec;
103 };
104
105 struct prestera_port_phy_state {
106 u64 lmode_bmap;
107 struct {
108 bool pause;
109 bool asym_pause;
110 } remote_fc;
111 u8 mdix;
112 };
113
114 struct prestera_port_mac_config {
115 u32 mode;
116 u32 speed;
117 bool admin;
118 u8 inband;
119 u8 duplex;
120 u8 fec;
121 };
122
123 struct prestera_port_phy_config {
124 u32 mode;
125 bool admin;
126 u8 mdix;
127 };
128
129 struct prestera_port {
130 struct net_device *dev;
131 struct prestera_switch *sw;
132 struct prestera_flow_block *ingress_flow_block;
133 struct prestera_flow_block *egress_flow_block;
134 struct devlink_port dl_port;
135 struct list_head lag_member;
136 struct prestera_lag *lag;
137 u32 id;
138 u32 hw_id;
139 u32 dev_id;
140 u16 fp_id;
141 u16 pvid;
142 bool autoneg;
143 u64 adver_link_modes;
144 u8 adver_fec;
145 struct prestera_port_caps caps;
146 struct list_head list;
147 struct list_head vlans_list;
148 struct {
149 struct prestera_port_stats stats;
150 struct delayed_work caching_dw;
151 } cached_hw_stats;
152 struct prestera_port_mac_config cfg_mac;
153 struct prestera_port_phy_config cfg_phy;
154 struct prestera_port_mac_state state_mac;
155 struct prestera_port_phy_state state_phy;
156
157 struct phylink_config phy_config;
158 struct phylink *phy_link;
159 struct phylink_pcs phylink_pcs;
160
161 /* protects state_mac */
162 spinlock_t state_mac_lock;
163 };
164
165 struct prestera_device {
166 struct device *dev;
167 u8 __iomem *ctl_regs;
168 u8 __iomem *pp_regs;
169 struct prestera_fw_rev fw_rev;
170 void *priv;
171
172 /* called by device driver to handle received packets */
173 void (*recv_pkt)(struct prestera_device *dev);
174
175 /* called by device driver to pass event up to the higher layer */
176 int (*recv_msg)(struct prestera_device *dev, void *msg, size_t size);
177
178 /* called by higher layer to send request to the firmware */
179 int (*send_req)(struct prestera_device *dev, int qid, void *in_msg,
180 size_t in_size, void *out_msg, size_t out_size,
181 unsigned int wait);
182 };
183
184 enum prestera_event_type {
185 PRESTERA_EVENT_TYPE_UNSPEC,
186
187 PRESTERA_EVENT_TYPE_PORT,
188 PRESTERA_EVENT_TYPE_FDB,
189 PRESTERA_EVENT_TYPE_RXTX,
190
191 PRESTERA_EVENT_TYPE_MAX
192 };
193
194 enum prestera_rxtx_event_id {
195 PRESTERA_RXTX_EVENT_UNSPEC,
196 PRESTERA_RXTX_EVENT_RCV_PKT,
197 };
198
199 enum prestera_port_event_id {
200 PRESTERA_PORT_EVENT_UNSPEC,
201 PRESTERA_PORT_EVENT_MAC_STATE_CHANGED,
202 };
203
204 struct prestera_port_event {
205 u32 port_id;
206 union {
207 struct {
208 u32 mode;
209 u32 speed;
210 u8 oper;
211 u8 duplex;
212 u8 fc;
213 u8 fec;
214 } mac;
215 struct {
216 u64 lmode_bmap;
217 struct {
218 bool pause;
219 bool asym_pause;
220 } remote_fc;
221 u8 mdix;
222 } phy;
223 } data;
224 };
225
226 enum prestera_fdb_entry_type {
227 PRESTERA_FDB_ENTRY_TYPE_REG_PORT,
228 PRESTERA_FDB_ENTRY_TYPE_LAG,
229 PRESTERA_FDB_ENTRY_TYPE_MAX
230 };
231
232 enum prestera_fdb_event_id {
233 PRESTERA_FDB_EVENT_UNSPEC,
234 PRESTERA_FDB_EVENT_LEARNED,
235 PRESTERA_FDB_EVENT_AGED,
236 };
237
238 struct prestera_fdb_event {
239 enum prestera_fdb_entry_type type;
240 union {
241 u32 port_id;
242 u16 lag_id;
243 } dest;
244 u32 vid;
245 union {
246 u8 mac[ETH_ALEN];
247 } data;
248 };
249
250 struct prestera_event {
251 u16 id;
252 union {
253 struct prestera_port_event port_evt;
254 struct prestera_fdb_event fdb_evt;
255 };
256 };
257
258 enum prestera_if_type {
259 /* the interface is of port type (dev,port) */
260 PRESTERA_IF_PORT_E = 0,
261
262 /* the interface is of lag type (lag-id) */
263 PRESTERA_IF_LAG_E = 1,
264
265 /* the interface is of Vid type (vlan-id) */
266 PRESTERA_IF_VID_E = 3,
267 };
268
269 struct prestera_iface {
270 enum prestera_if_type type;
271 struct {
272 u32 hw_dev_num;
273 u32 port_num;
274 } dev_port;
275 u32 hw_dev_num;
276 u16 vr_id;
277 u16 lag_id;
278 u16 vlan_id;
279 };
280
281 struct prestera_switchdev;
282 struct prestera_span;
283 struct prestera_rxtx;
284 struct prestera_trap_data;
285 struct prestera_acl;
286
287 struct prestera_switch {
288 struct prestera_device *dev;
289 struct prestera_switchdev *swdev;
290 struct prestera_rxtx *rxtx;
291 struct prestera_acl *acl;
292 struct prestera_span *span;
293 struct list_head event_handlers;
294 struct notifier_block netdev_nb;
295 struct prestera_trap_data *trap_data;
296 char base_mac[ETH_ALEN];
297 struct list_head port_list;
298 rwlock_t port_list_lock;
299 u32 port_count;
300 u32 mtu_min;
301 u32 mtu_max;
302 u8 id;
303 struct device_node *np;
304 struct prestera_router *router;
305 struct prestera_lag *lags;
306 struct prestera_counter *counter;
307 u8 lag_member_max;
308 u8 lag_max;
309 u32 size_tbl_router_nexthop;
310 };
311
312 struct prestera_router {
313 struct prestera_switch *sw;
314 struct list_head vr_list;
315 struct list_head rif_entry_list;
316 struct rhashtable nh_neigh_ht;
317 struct rhashtable nexthop_group_ht;
318 struct rhashtable fib_ht;
319 struct rhashtable kern_neigh_cache_ht;
320 struct rhashtable kern_fib_cache_ht;
321 struct notifier_block inetaddr_nb;
322 struct notifier_block inetaddr_valid_nb;
323 struct notifier_block fib_nb;
324 struct notifier_block netevent_nb;
325 u8 *nhgrp_hw_state_cache; /* Bitmap cached hw state of nhs */
326 unsigned long nhgrp_hw_cache_kick; /* jiffies */
327 struct {
328 struct delayed_work dw;
329 } neighs_update;
330 };
331
332 struct prestera_rxtx_params {
333 bool use_sdma;
334 u32 map_addr;
335 };
336
337 #define prestera_dev(sw) ((sw)->dev->dev)
338
prestera_write(const struct prestera_switch * sw,unsigned int reg,u32 val)339 static inline void prestera_write(const struct prestera_switch *sw,
340 unsigned int reg, u32 val)
341 {
342 writel(val, sw->dev->pp_regs + reg);
343 }
344
prestera_read(const struct prestera_switch * sw,unsigned int reg)345 static inline u32 prestera_read(const struct prestera_switch *sw,
346 unsigned int reg)
347 {
348 return readl(sw->dev->pp_regs + reg);
349 }
350
351 int prestera_device_register(struct prestera_device *dev);
352 void prestera_device_unregister(struct prestera_device *dev);
353
354 struct prestera_port *prestera_port_find_by_hwid(struct prestera_switch *sw,
355 u32 dev_id, u32 hw_id);
356
357 int prestera_port_autoneg_set(struct prestera_port *port, u64 link_modes);
358
359 int prestera_router_init(struct prestera_switch *sw);
360 void prestera_router_fini(struct prestera_switch *sw);
361
362 struct prestera_port *prestera_find_port(struct prestera_switch *sw, u32 id);
363
364 struct prestera_switch *prestera_switch_get(struct net_device *dev);
365
366 int prestera_port_cfg_mac_read(struct prestera_port *port,
367 struct prestera_port_mac_config *cfg);
368
369 int prestera_port_cfg_mac_write(struct prestera_port *port,
370 struct prestera_port_mac_config *cfg);
371
372 struct prestera_port *prestera_port_dev_lower_find(struct net_device *dev);
373
374 void prestera_queue_work(struct work_struct *work);
375 void prestera_queue_delayed_work(struct delayed_work *work, unsigned long delay);
376 void prestera_queue_drain(void);
377
378 int prestera_port_learning_set(struct prestera_port *port, bool learn_enable);
379 int prestera_port_uc_flood_set(struct prestera_port *port, bool flood);
380 int prestera_port_mc_flood_set(struct prestera_port *port, bool flood);
381
382 int prestera_port_br_locked_set(struct prestera_port *port, bool br_locked);
383
384 int prestera_port_pvid_set(struct prestera_port *port, u16 vid);
385
386 bool prestera_netdev_check(const struct net_device *dev);
387
388 int prestera_is_valid_mac_addr(struct prestera_port *port, const u8 *addr);
389
390 bool prestera_port_is_lag_member(const struct prestera_port *port);
391 int prestera_lag_id(struct prestera_switch *sw,
392 struct net_device *lag_dev, u16 *lag_id);
393
394 struct prestera_lag *prestera_lag_by_id(struct prestera_switch *sw, u16 id);
395
396 u16 prestera_port_lag_id(const struct prestera_port *port);
397
398 struct prestera_mdb_entry *
399 prestera_mdb_entry_create(struct prestera_switch *sw,
400 const unsigned char *addr, u16 vid);
401 void prestera_mdb_entry_destroy(struct prestera_mdb_entry *mdb_entry);
402
403 struct prestera_flood_domain *
404 prestera_flood_domain_create(struct prestera_switch *sw);
405 void prestera_flood_domain_destroy(struct prestera_flood_domain *flood_domain);
406
407 int
408 prestera_flood_domain_port_create(struct prestera_flood_domain *flood_domain,
409 struct net_device *dev,
410 u16 vid);
411 void
412 prestera_flood_domain_port_destroy(struct prestera_flood_domain_port *port);
413 struct prestera_flood_domain_port *
414 prestera_flood_domain_port_find(struct prestera_flood_domain *flood_domain,
415 struct net_device *dev, u16 vid);
416
417 #endif /* _PRESTERA_H_ */
418