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dt-bindings: mtd: ingenic: Use standard ecc-engine property
[linux/fpc-iii.git] / drivers / net / ethernet / rocker / rocker_ofdpa.c
blobfa296a7c255dfe581d59cc83a3f7db001a433c90
1 /*
2 * drivers/net/ethernet/rocker/rocker_ofdpa.c - Rocker switch OF-DPA-like
3 * implementation
4 * Copyright (c) 2014 Scott Feldman <sfeldma@gmail.com>
5 * Copyright (c) 2014-2016 Jiri Pirko <jiri@mellanox.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 */
12
13 #include <linux/kernel.h>
14 #include <linux/types.h>
15 #include <linux/spinlock.h>
16 #include <linux/hashtable.h>
17 #include <linux/crc32.h>
18 #include <linux/netdevice.h>
19 #include <linux/inetdevice.h>
20 #include <linux/if_vlan.h>
21 #include <linux/if_bridge.h>
22 #include <net/neighbour.h>
23 #include <net/switchdev.h>
24 #include <net/ip_fib.h>
25 #include <net/arp.h>
26
27 #include "rocker.h"
28 #include "rocker_tlv.h"
29
30 struct ofdpa_flow_tbl_key {
31 u32 priority;
32 enum rocker_of_dpa_table_id tbl_id;
33 union {
34 struct {
35 u32 in_pport;
36 u32 in_pport_mask;
37 enum rocker_of_dpa_table_id goto_tbl;
38 } ig_port;
39 struct {
40 u32 in_pport;
41 __be16 vlan_id;
42 __be16 vlan_id_mask;
43 enum rocker_of_dpa_table_id goto_tbl;
44 bool untagged;
45 __be16 new_vlan_id;
46 } vlan;
47 struct {
48 u32 in_pport;
49 u32 in_pport_mask;
50 __be16 eth_type;
51 u8 eth_dst[ETH_ALEN];
52 u8 eth_dst_mask[ETH_ALEN];
53 __be16 vlan_id;
54 __be16 vlan_id_mask;
55 enum rocker_of_dpa_table_id goto_tbl;
56 bool copy_to_cpu;
57 } term_mac;
58 struct {
59 __be16 eth_type;
60 __be32 dst4;
61 __be32 dst4_mask;
62 enum rocker_of_dpa_table_id goto_tbl;
63 u32 group_id;
64 } ucast_routing;
65 struct {
66 u8 eth_dst[ETH_ALEN];
67 u8 eth_dst_mask[ETH_ALEN];
68 int has_eth_dst;
69 int has_eth_dst_mask;
70 __be16 vlan_id;
71 u32 tunnel_id;
72 enum rocker_of_dpa_table_id goto_tbl;
73 u32 group_id;
74 bool copy_to_cpu;
75 } bridge;
76 struct {
77 u32 in_pport;
78 u32 in_pport_mask;
79 u8 eth_src[ETH_ALEN];
80 u8 eth_src_mask[ETH_ALEN];
81 u8 eth_dst[ETH_ALEN];
82 u8 eth_dst_mask[ETH_ALEN];
83 __be16 eth_type;
84 __be16 vlan_id;
85 __be16 vlan_id_mask;
86 u8 ip_proto;
87 u8 ip_proto_mask;
88 u8 ip_tos;
89 u8 ip_tos_mask;
90 u32 group_id;
91 } acl;
92 };
93 };
94
95 struct ofdpa_flow_tbl_entry {
96 struct hlist_node entry;
97 u32 cmd;
98 u64 cookie;
99 struct ofdpa_flow_tbl_key key;
100 size_t key_len;
101 u32 key_crc32; /* key */
102 struct fib_info *fi;
103 };
104
105 struct ofdpa_group_tbl_entry {
106 struct hlist_node entry;
107 u32 cmd;
108 u32 group_id; /* key */
109 u16 group_count;
110 u32 *group_ids;
111 union {
112 struct {
113 u8 pop_vlan;
114 } l2_interface;
115 struct {
116 u8 eth_src[ETH_ALEN];
117 u8 eth_dst[ETH_ALEN];
118 __be16 vlan_id;
119 u32 group_id;
120 } l2_rewrite;
121 struct {
122 u8 eth_src[ETH_ALEN];
123 u8 eth_dst[ETH_ALEN];
124 __be16 vlan_id;
125 bool ttl_check;
126 u32 group_id;
127 } l3_unicast;
128 };
129 };
130
131 struct ofdpa_fdb_tbl_entry {
132 struct hlist_node entry;
133 u32 key_crc32; /* key */
134 bool learned;
135 unsigned long touched;
136 struct ofdpa_fdb_tbl_key {
137 struct ofdpa_port *ofdpa_port;
138 u8 addr[ETH_ALEN];
139 __be16 vlan_id;
140 } key;
141 };
142
143 struct ofdpa_internal_vlan_tbl_entry {
144 struct hlist_node entry;
145 int ifindex; /* key */
146 u32 ref_count;
147 __be16 vlan_id;
148 };
149
150 struct ofdpa_neigh_tbl_entry {
151 struct hlist_node entry;
152 __be32 ip_addr; /* key */
153 struct net_device *dev;
154 u32 ref_count;
155 u32 index;
156 u8 eth_dst[ETH_ALEN];
157 bool ttl_check;
158 };
159
160 enum {
161 OFDPA_CTRL_LINK_LOCAL_MCAST,
162 OFDPA_CTRL_LOCAL_ARP,
163 OFDPA_CTRL_IPV4_MCAST,
164 OFDPA_CTRL_IPV6_MCAST,
165 OFDPA_CTRL_DFLT_BRIDGING,
166 OFDPA_CTRL_DFLT_OVS,
167 OFDPA_CTRL_MAX,
168 };
169
170 #define OFDPA_INTERNAL_VLAN_ID_BASE 0x0f00
171 #define OFDPA_N_INTERNAL_VLANS 255
172 #define OFDPA_VLAN_BITMAP_LEN BITS_TO_LONGS(VLAN_N_VID)
173 #define OFDPA_INTERNAL_VLAN_BITMAP_LEN BITS_TO_LONGS(OFDPA_N_INTERNAL_VLANS)
174 #define OFDPA_UNTAGGED_VID 0
175
176 struct ofdpa {
177 struct rocker *rocker;
178 DECLARE_HASHTABLE(flow_tbl, 16);
179 spinlock_t flow_tbl_lock; /* for flow tbl accesses */
180 u64 flow_tbl_next_cookie;
181 DECLARE_HASHTABLE(group_tbl, 16);
182 spinlock_t group_tbl_lock; /* for group tbl accesses */
183 struct timer_list fdb_cleanup_timer;
184 DECLARE_HASHTABLE(fdb_tbl, 16);
185 spinlock_t fdb_tbl_lock; /* for fdb tbl accesses */
186 unsigned long internal_vlan_bitmap[OFDPA_INTERNAL_VLAN_BITMAP_LEN];
187 DECLARE_HASHTABLE(internal_vlan_tbl, 8);
188 spinlock_t internal_vlan_tbl_lock; /* for vlan tbl accesses */
189 DECLARE_HASHTABLE(neigh_tbl, 16);
190 spinlock_t neigh_tbl_lock; /* for neigh tbl accesses */
191 u32 neigh_tbl_next_index;
192 unsigned long ageing_time;
193 bool fib_aborted;
194 };
195
196 struct ofdpa_port {
197 struct ofdpa *ofdpa;
198 struct rocker_port *rocker_port;
199 struct net_device *dev;
200 u32 pport;
201 struct net_device *bridge_dev;
202 __be16 internal_vlan_id;
203 int stp_state;
204 u32 brport_flags;
205 unsigned long ageing_time;
206 bool ctrls[OFDPA_CTRL_MAX];
207 unsigned long vlan_bitmap[OFDPA_VLAN_BITMAP_LEN];
208 };
209
210 static const u8 zero_mac[ETH_ALEN] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
211 static const u8 ff_mac[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
212 static const u8 ll_mac[ETH_ALEN] = { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x00 };
213 static const u8 ll_mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0 };
214 static const u8 mcast_mac[ETH_ALEN] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 };
215 static const u8 ipv4_mcast[ETH_ALEN] = { 0x01, 0x00, 0x5e, 0x00, 0x00, 0x00 };
216 static const u8 ipv4_mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0x80, 0x00, 0x00 };
217 static const u8 ipv6_mcast[ETH_ALEN] = { 0x33, 0x33, 0x00, 0x00, 0x00, 0x00 };
218 static const u8 ipv6_mask[ETH_ALEN] = { 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 };
219
220 /* Rocker priority levels for flow table entries. Higher
221 * priority match takes precedence over lower priority match.
222 */
223
224 enum {
225 OFDPA_PRIORITY_UNKNOWN = 0,
226 OFDPA_PRIORITY_IG_PORT = 1,
227 OFDPA_PRIORITY_VLAN = 1,
228 OFDPA_PRIORITY_TERM_MAC_UCAST = 0,
229 OFDPA_PRIORITY_TERM_MAC_MCAST = 1,
230 OFDPA_PRIORITY_BRIDGING_VLAN_DFLT_EXACT = 1,
231 OFDPA_PRIORITY_BRIDGING_VLAN_DFLT_WILD = 2,
232 OFDPA_PRIORITY_BRIDGING_VLAN = 3,
233 OFDPA_PRIORITY_BRIDGING_TENANT_DFLT_EXACT = 1,
234 OFDPA_PRIORITY_BRIDGING_TENANT_DFLT_WILD = 2,
235 OFDPA_PRIORITY_BRIDGING_TENANT = 3,
236 OFDPA_PRIORITY_ACL_CTRL = 3,
237 OFDPA_PRIORITY_ACL_NORMAL = 2,
238 OFDPA_PRIORITY_ACL_DFLT = 1,
239 };
240
241 static bool ofdpa_vlan_id_is_internal(__be16 vlan_id)
242 {
243 u16 start = OFDPA_INTERNAL_VLAN_ID_BASE;
244 u16 end = 0xffe;
245 u16 _vlan_id = ntohs(vlan_id);
246
247 return (_vlan_id >= start && _vlan_id <= end);
248 }
249
250 static __be16 ofdpa_port_vid_to_vlan(const struct ofdpa_port *ofdpa_port,
251 u16 vid, bool *pop_vlan)
252 {
253 __be16 vlan_id;
254
255 if (pop_vlan)
256 *pop_vlan = false;
257 vlan_id = htons(vid);
258 if (!vlan_id) {
259 vlan_id = ofdpa_port->internal_vlan_id;
260 if (pop_vlan)
261 *pop_vlan = true;
262 }
263
264 return vlan_id;
265 }
266
267 static u16 ofdpa_port_vlan_to_vid(const struct ofdpa_port *ofdpa_port,
268 __be16 vlan_id)
269 {
270 if (ofdpa_vlan_id_is_internal(vlan_id))
271 return 0;
272
273 return ntohs(vlan_id);
274 }
275
276 static bool ofdpa_port_is_slave(const struct ofdpa_port *ofdpa_port,
277 const char *kind)
278 {
279 return ofdpa_port->bridge_dev &&
280 !strcmp(ofdpa_port->bridge_dev->rtnl_link_ops->kind, kind);
281 }
282
283 static bool ofdpa_port_is_bridged(const struct ofdpa_port *ofdpa_port)
284 {
285 return ofdpa_port_is_slave(ofdpa_port, "bridge");
286 }
287
288 static bool ofdpa_port_is_ovsed(const struct ofdpa_port *ofdpa_port)
289 {
290 return ofdpa_port_is_slave(ofdpa_port, "openvswitch");
291 }
292
293 #define OFDPA_OP_FLAG_REMOVE BIT(0)
294 #define OFDPA_OP_FLAG_NOWAIT BIT(1)
295 #define OFDPA_OP_FLAG_LEARNED BIT(2)
296 #define OFDPA_OP_FLAG_REFRESH BIT(3)
297
298 static bool ofdpa_flags_nowait(int flags)
299 {
300 return flags & OFDPA_OP_FLAG_NOWAIT;
301 }
302
303 /*************************************************************
304 * Flow, group, FDB, internal VLAN and neigh command prepares
305 *************************************************************/
306
307 static int
308 ofdpa_cmd_flow_tbl_add_ig_port(struct rocker_desc_info *desc_info,
309 const struct ofdpa_flow_tbl_entry *entry)
310 {
311 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT,
312 entry->key.ig_port.in_pport))
313 return -EMSGSIZE;
314 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK,
315 entry->key.ig_port.in_pport_mask))
316 return -EMSGSIZE;
317 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
318 entry->key.ig_port.goto_tbl))
319 return -EMSGSIZE;
320
321 return 0;
322 }
323
324 static int
325 ofdpa_cmd_flow_tbl_add_vlan(struct rocker_desc_info *desc_info,
326 const struct ofdpa_flow_tbl_entry *entry)
327 {
328 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT,
329 entry->key.vlan.in_pport))
330 return -EMSGSIZE;
331 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
332 entry->key.vlan.vlan_id))
333 return -EMSGSIZE;
334 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK,
335 entry->key.vlan.vlan_id_mask))
336 return -EMSGSIZE;
337 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
338 entry->key.vlan.goto_tbl))
339 return -EMSGSIZE;
340 if (entry->key.vlan.untagged &&
341 rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_NEW_VLAN_ID,
342 entry->key.vlan.new_vlan_id))
343 return -EMSGSIZE;
344
345 return 0;
346 }
347
348 static int
349 ofdpa_cmd_flow_tbl_add_term_mac(struct rocker_desc_info *desc_info,
350 const struct ofdpa_flow_tbl_entry *entry)
351 {
352 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT,
353 entry->key.term_mac.in_pport))
354 return -EMSGSIZE;
355 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK,
356 entry->key.term_mac.in_pport_mask))
357 return -EMSGSIZE;
358 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE,
359 entry->key.term_mac.eth_type))
360 return -EMSGSIZE;
361 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
362 ETH_ALEN, entry->key.term_mac.eth_dst))
363 return -EMSGSIZE;
364 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK,
365 ETH_ALEN, entry->key.term_mac.eth_dst_mask))
366 return -EMSGSIZE;
367 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
368 entry->key.term_mac.vlan_id))
369 return -EMSGSIZE;
370 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK,
371 entry->key.term_mac.vlan_id_mask))
372 return -EMSGSIZE;
373 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
374 entry->key.term_mac.goto_tbl))
375 return -EMSGSIZE;
376 if (entry->key.term_mac.copy_to_cpu &&
377 rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION,
378 entry->key.term_mac.copy_to_cpu))
379 return -EMSGSIZE;
380
381 return 0;
382 }
383
384 static int
385 ofdpa_cmd_flow_tbl_add_ucast_routing(struct rocker_desc_info *desc_info,
386 const struct ofdpa_flow_tbl_entry *entry)
387 {
388 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE,
389 entry->key.ucast_routing.eth_type))
390 return -EMSGSIZE;
391 if (rocker_tlv_put_be32(desc_info, ROCKER_TLV_OF_DPA_DST_IP,
392 entry->key.ucast_routing.dst4))
393 return -EMSGSIZE;
394 if (rocker_tlv_put_be32(desc_info, ROCKER_TLV_OF_DPA_DST_IP_MASK,
395 entry->key.ucast_routing.dst4_mask))
396 return -EMSGSIZE;
397 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
398 entry->key.ucast_routing.goto_tbl))
399 return -EMSGSIZE;
400 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
401 entry->key.ucast_routing.group_id))
402 return -EMSGSIZE;
403
404 return 0;
405 }
406
407 static int
408 ofdpa_cmd_flow_tbl_add_bridge(struct rocker_desc_info *desc_info,
409 const struct ofdpa_flow_tbl_entry *entry)
410 {
411 if (entry->key.bridge.has_eth_dst &&
412 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
413 ETH_ALEN, entry->key.bridge.eth_dst))
414 return -EMSGSIZE;
415 if (entry->key.bridge.has_eth_dst_mask &&
416 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK,
417 ETH_ALEN, entry->key.bridge.eth_dst_mask))
418 return -EMSGSIZE;
419 if (entry->key.bridge.vlan_id &&
420 rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
421 entry->key.bridge.vlan_id))
422 return -EMSGSIZE;
423 if (entry->key.bridge.tunnel_id &&
424 rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_TUNNEL_ID,
425 entry->key.bridge.tunnel_id))
426 return -EMSGSIZE;
427 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
428 entry->key.bridge.goto_tbl))
429 return -EMSGSIZE;
430 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
431 entry->key.bridge.group_id))
432 return -EMSGSIZE;
433 if (entry->key.bridge.copy_to_cpu &&
434 rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION,
435 entry->key.bridge.copy_to_cpu))
436 return -EMSGSIZE;
437
438 return 0;
439 }
440
441 static int
442 ofdpa_cmd_flow_tbl_add_acl(struct rocker_desc_info *desc_info,
443 const struct ofdpa_flow_tbl_entry *entry)
444 {
445 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT,
446 entry->key.acl.in_pport))
447 return -EMSGSIZE;
448 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK,
449 entry->key.acl.in_pport_mask))
450 return -EMSGSIZE;
451 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC,
452 ETH_ALEN, entry->key.acl.eth_src))
453 return -EMSGSIZE;
454 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC_MASK,
455 ETH_ALEN, entry->key.acl.eth_src_mask))
456 return -EMSGSIZE;
457 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
458 ETH_ALEN, entry->key.acl.eth_dst))
459 return -EMSGSIZE;
460 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK,
461 ETH_ALEN, entry->key.acl.eth_dst_mask))
462 return -EMSGSIZE;
463 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE,
464 entry->key.acl.eth_type))
465 return -EMSGSIZE;
466 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
467 entry->key.acl.vlan_id))
468 return -EMSGSIZE;
469 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK,
470 entry->key.acl.vlan_id_mask))
471 return -EMSGSIZE;
472
473 switch (ntohs(entry->key.acl.eth_type)) {
474 case ETH_P_IP:
475 case ETH_P_IPV6:
476 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_PROTO,
477 entry->key.acl.ip_proto))
478 return -EMSGSIZE;
479 if (rocker_tlv_put_u8(desc_info,
480 ROCKER_TLV_OF_DPA_IP_PROTO_MASK,
481 entry->key.acl.ip_proto_mask))
482 return -EMSGSIZE;
483 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_DSCP,
484 entry->key.acl.ip_tos & 0x3f))
485 return -EMSGSIZE;
486 if (rocker_tlv_put_u8(desc_info,
487 ROCKER_TLV_OF_DPA_IP_DSCP_MASK,
488 entry->key.acl.ip_tos_mask & 0x3f))
489 return -EMSGSIZE;
490 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_ECN,
491 (entry->key.acl.ip_tos & 0xc0) >> 6))
492 return -EMSGSIZE;
493 if (rocker_tlv_put_u8(desc_info,
494 ROCKER_TLV_OF_DPA_IP_ECN_MASK,
495 (entry->key.acl.ip_tos_mask & 0xc0) >> 6))
496 return -EMSGSIZE;
497 break;
498 }
499
500 if (entry->key.acl.group_id != ROCKER_GROUP_NONE &&
501 rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
502 entry->key.acl.group_id))
503 return -EMSGSIZE;
504
505 return 0;
506 }
507
508 static int ofdpa_cmd_flow_tbl_add(const struct rocker_port *rocker_port,
509 struct rocker_desc_info *desc_info,
510 void *priv)
511 {
512 const struct ofdpa_flow_tbl_entry *entry = priv;
513 struct rocker_tlv *cmd_info;
514 int err = 0;
515
516 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd))
517 return -EMSGSIZE;
518 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
519 if (!cmd_info)
520 return -EMSGSIZE;
521 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_TABLE_ID,
522 entry->key.tbl_id))
523 return -EMSGSIZE;
524 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_PRIORITY,
525 entry->key.priority))
526 return -EMSGSIZE;
527 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_HARDTIME, 0))
528 return -EMSGSIZE;
529 if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_OF_DPA_COOKIE,
530 entry->cookie))
531 return -EMSGSIZE;
532
533 switch (entry->key.tbl_id) {
534 case ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT:
535 err = ofdpa_cmd_flow_tbl_add_ig_port(desc_info, entry);
536 break;
537 case ROCKER_OF_DPA_TABLE_ID_VLAN:
538 err = ofdpa_cmd_flow_tbl_add_vlan(desc_info, entry);
539 break;
540 case ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC:
541 err = ofdpa_cmd_flow_tbl_add_term_mac(desc_info, entry);
542 break;
543 case ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING:
544 err = ofdpa_cmd_flow_tbl_add_ucast_routing(desc_info, entry);
545 break;
546 case ROCKER_OF_DPA_TABLE_ID_BRIDGING:
547 err = ofdpa_cmd_flow_tbl_add_bridge(desc_info, entry);
548 break;
549 case ROCKER_OF_DPA_TABLE_ID_ACL_POLICY:
550 err = ofdpa_cmd_flow_tbl_add_acl(desc_info, entry);
551 break;
552 default:
553 err = -ENOTSUPP;
554 break;
555 }
556
557 if (err)
558 return err;
559
560 rocker_tlv_nest_end(desc_info, cmd_info);
561
562 return 0;
563 }
564
565 static int ofdpa_cmd_flow_tbl_del(const struct rocker_port *rocker_port,
566 struct rocker_desc_info *desc_info,
567 void *priv)
568 {
569 const struct ofdpa_flow_tbl_entry *entry = priv;
570 struct rocker_tlv *cmd_info;
571
572 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd))
573 return -EMSGSIZE;
574 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
575 if (!cmd_info)
576 return -EMSGSIZE;
577 if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_OF_DPA_COOKIE,
578 entry->cookie))
579 return -EMSGSIZE;
580 rocker_tlv_nest_end(desc_info, cmd_info);
581
582 return 0;
583 }
584
585 static int
586 ofdpa_cmd_group_tbl_add_l2_interface(struct rocker_desc_info *desc_info,
587 struct ofdpa_group_tbl_entry *entry)
588 {
589 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_OUT_PPORT,
590 ROCKER_GROUP_PORT_GET(entry->group_id)))
591 return -EMSGSIZE;
592 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_POP_VLAN,
593 entry->l2_interface.pop_vlan))
594 return -EMSGSIZE;
595
596 return 0;
597 }
598
599 static int
600 ofdpa_cmd_group_tbl_add_l2_rewrite(struct rocker_desc_info *desc_info,
601 const struct ofdpa_group_tbl_entry *entry)
602 {
603 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER,
604 entry->l2_rewrite.group_id))
605 return -EMSGSIZE;
606 if (!is_zero_ether_addr(entry->l2_rewrite.eth_src) &&
607 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC,
608 ETH_ALEN, entry->l2_rewrite.eth_src))
609 return -EMSGSIZE;
610 if (!is_zero_ether_addr(entry->l2_rewrite.eth_dst) &&
611 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
612 ETH_ALEN, entry->l2_rewrite.eth_dst))
613 return -EMSGSIZE;
614 if (entry->l2_rewrite.vlan_id &&
615 rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
616 entry->l2_rewrite.vlan_id))
617 return -EMSGSIZE;
618
619 return 0;
620 }
621
622 static int
623 ofdpa_cmd_group_tbl_add_group_ids(struct rocker_desc_info *desc_info,
624 const struct ofdpa_group_tbl_entry *entry)
625 {
626 int i;
627 struct rocker_tlv *group_ids;
628
629 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GROUP_COUNT,
630 entry->group_count))
631 return -EMSGSIZE;
632
633 group_ids = rocker_tlv_nest_start(desc_info,
634 ROCKER_TLV_OF_DPA_GROUP_IDS);
635 if (!group_ids)
636 return -EMSGSIZE;
637
638 for (i = 0; i < entry->group_count; i++)
639 /* Note TLV array is 1-based */
640 if (rocker_tlv_put_u32(desc_info, i + 1, entry->group_ids[i]))
641 return -EMSGSIZE;
642
643 rocker_tlv_nest_end(desc_info, group_ids);
644
645 return 0;
646 }
647
648 static int
649 ofdpa_cmd_group_tbl_add_l3_unicast(struct rocker_desc_info *desc_info,
650 const struct ofdpa_group_tbl_entry *entry)
651 {
652 if (!is_zero_ether_addr(entry->l3_unicast.eth_src) &&
653 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC,
654 ETH_ALEN, entry->l3_unicast.eth_src))
655 return -EMSGSIZE;
656 if (!is_zero_ether_addr(entry->l3_unicast.eth_dst) &&
657 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
658 ETH_ALEN, entry->l3_unicast.eth_dst))
659 return -EMSGSIZE;
660 if (entry->l3_unicast.vlan_id &&
661 rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
662 entry->l3_unicast.vlan_id))
663 return -EMSGSIZE;
664 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_TTL_CHECK,
665 entry->l3_unicast.ttl_check))
666 return -EMSGSIZE;
667 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER,
668 entry->l3_unicast.group_id))
669 return -EMSGSIZE;
670
671 return 0;
672 }
673
674 static int ofdpa_cmd_group_tbl_add(const struct rocker_port *rocker_port,
675 struct rocker_desc_info *desc_info,
676 void *priv)
677 {
678 struct ofdpa_group_tbl_entry *entry = priv;
679 struct rocker_tlv *cmd_info;
680 int err = 0;
681
682 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd))
683 return -EMSGSIZE;
684 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
685 if (!cmd_info)
686 return -EMSGSIZE;
687
688 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
689 entry->group_id))
690 return -EMSGSIZE;
691
692 switch (ROCKER_GROUP_TYPE_GET(entry->group_id)) {
693 case ROCKER_OF_DPA_GROUP_TYPE_L2_INTERFACE:
694 err = ofdpa_cmd_group_tbl_add_l2_interface(desc_info, entry);
695 break;
696 case ROCKER_OF_DPA_GROUP_TYPE_L2_REWRITE:
697 err = ofdpa_cmd_group_tbl_add_l2_rewrite(desc_info, entry);
698 break;
699 case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD:
700 case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST:
701 err = ofdpa_cmd_group_tbl_add_group_ids(desc_info, entry);
702 break;
703 case ROCKER_OF_DPA_GROUP_TYPE_L3_UCAST:
704 err = ofdpa_cmd_group_tbl_add_l3_unicast(desc_info, entry);
705 break;
706 default:
707 err = -ENOTSUPP;
708 break;
709 }
710
711 if (err)
712 return err;
713
714 rocker_tlv_nest_end(desc_info, cmd_info);
715
716 return 0;
717 }
718
719 static int ofdpa_cmd_group_tbl_del(const struct rocker_port *rocker_port,
720 struct rocker_desc_info *desc_info,
721 void *priv)
722 {
723 const struct ofdpa_group_tbl_entry *entry = priv;
724 struct rocker_tlv *cmd_info;
725
726 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd))
727 return -EMSGSIZE;
728 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
729 if (!cmd_info)
730 return -EMSGSIZE;
731 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
732 entry->group_id))
733 return -EMSGSIZE;
734 rocker_tlv_nest_end(desc_info, cmd_info);
735
736 return 0;
737 }
738
739 /***************************************************
740 * Flow, group, FDB, internal VLAN and neigh tables
741 ***************************************************/
742
743 static struct ofdpa_flow_tbl_entry *
744 ofdpa_flow_tbl_find(const struct ofdpa *ofdpa,
745 const struct ofdpa_flow_tbl_entry *match)
746 {
747 struct ofdpa_flow_tbl_entry *found;
748 size_t key_len = match->key_len ? match->key_len : sizeof(found->key);
749
750 hash_for_each_possible(ofdpa->flow_tbl, found,
751 entry, match->key_crc32) {
752 if (memcmp(&found->key, &match->key, key_len) == 0)
753 return found;
754 }
755
756 return NULL;
757 }
758
759 static int ofdpa_flow_tbl_add(struct ofdpa_port *ofdpa_port,
760 int flags, struct ofdpa_flow_tbl_entry *match)
761 {
762 struct ofdpa *ofdpa = ofdpa_port->ofdpa;
763 struct ofdpa_flow_tbl_entry *found;
764 size_t key_len = match->key_len ? match->key_len : sizeof(found->key);
765 unsigned long lock_flags;
766
767 match->key_crc32 = crc32(~0, &match->key, key_len);
768
769 spin_lock_irqsave(&ofdpa->flow_tbl_lock, lock_flags);
770
771 found = ofdpa_flow_tbl_find(ofdpa, match);
772
773 if (found) {
774 match->cookie = found->cookie;
775 hash_del(&found->entry);
776 kfree(found);
777 found = match;
778 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_MOD;
779 } else {
780 found = match;
781 found->cookie = ofdpa->flow_tbl_next_cookie++;
782 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_ADD;
783 }
784
785 hash_add(ofdpa->flow_tbl, &found->entry, found->key_crc32);
786 spin_unlock_irqrestore(&ofdpa->flow_tbl_lock, lock_flags);
787
788 return rocker_cmd_exec(ofdpa_port->rocker_port,
789 ofdpa_flags_nowait(flags),
790 ofdpa_cmd_flow_tbl_add,
791 found, NULL, NULL);
792 }
793
794 static int ofdpa_flow_tbl_del(struct ofdpa_port *ofdpa_port,
795 int flags, struct ofdpa_flow_tbl_entry *match)
796 {
797 struct ofdpa *ofdpa = ofdpa_port->ofdpa;
798 struct ofdpa_flow_tbl_entry *found;
799 size_t key_len = match->key_len ? match->key_len : sizeof(found->key);
800 unsigned long lock_flags;
801 int err = 0;
802
803 match->key_crc32 = crc32(~0, &match->key, key_len);
804
805 spin_lock_irqsave(&ofdpa->flow_tbl_lock, lock_flags);
806
807 found = ofdpa_flow_tbl_find(ofdpa, match);
808
809 if (found) {
810 hash_del(&found->entry);
811 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_DEL;
812 }
813
814 spin_unlock_irqrestore(&ofdpa->flow_tbl_lock, lock_flags);
815
816 kfree(match);
817
818 if (found) {
819 err = rocker_cmd_exec(ofdpa_port->rocker_port,
820 ofdpa_flags_nowait(flags),
821 ofdpa_cmd_flow_tbl_del,
822 found, NULL, NULL);
823 kfree(found);
824 }
825
826 return err;
827 }
828
829 static int ofdpa_flow_tbl_do(struct ofdpa_port *ofdpa_port, int flags,
830 struct ofdpa_flow_tbl_entry *entry)
831 {
832 if (flags & OFDPA_OP_FLAG_REMOVE)
833 return ofdpa_flow_tbl_del(ofdpa_port, flags, entry);
834 else
835 return ofdpa_flow_tbl_add(ofdpa_port, flags, entry);
836 }
837
838 static int ofdpa_flow_tbl_ig_port(struct ofdpa_port *ofdpa_port, int flags,
839 u32 in_pport, u32 in_pport_mask,
840 enum rocker_of_dpa_table_id goto_tbl)
841 {
842 struct ofdpa_flow_tbl_entry *entry;
843
844 entry = kzalloc(sizeof(*entry), GFP_KERNEL);
845 if (!entry)
846 return -ENOMEM;
847
848 entry->key.priority = OFDPA_PRIORITY_IG_PORT;
849 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT;
850 entry->key.ig_port.in_pport = in_pport;
851 entry->key.ig_port.in_pport_mask = in_pport_mask;
852 entry->key.ig_port.goto_tbl = goto_tbl;
853
854 return ofdpa_flow_tbl_do(ofdpa_port, flags, entry);
855 }
856
857 static int ofdpa_flow_tbl_vlan(struct ofdpa_port *ofdpa_port,
858 int flags,
859 u32 in_pport, __be16 vlan_id,
860 __be16 vlan_id_mask,
861 enum rocker_of_dpa_table_id goto_tbl,
862 bool untagged, __be16 new_vlan_id)
863 {
864 struct ofdpa_flow_tbl_entry *entry;
865
866 entry = kzalloc(sizeof(*entry), GFP_KERNEL);
867 if (!entry)
868 return -ENOMEM;
869
870 entry->key.priority = OFDPA_PRIORITY_VLAN;
871 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_VLAN;
872 entry->key.vlan.in_pport = in_pport;
873 entry->key.vlan.vlan_id = vlan_id;
874 entry->key.vlan.vlan_id_mask = vlan_id_mask;
875 entry->key.vlan.goto_tbl = goto_tbl;
876
877 entry->key.vlan.untagged = untagged;
878 entry->key.vlan.new_vlan_id = new_vlan_id;
879
880 return ofdpa_flow_tbl_do(ofdpa_port, flags, entry);
881 }
882
883 static int ofdpa_flow_tbl_term_mac(struct ofdpa_port *ofdpa_port,
884 u32 in_pport, u32 in_pport_mask,
885 __be16 eth_type, const u8 *eth_dst,
886 const u8 *eth_dst_mask, __be16 vlan_id,
887 __be16 vlan_id_mask, bool copy_to_cpu,
888 int flags)
889 {
890 struct ofdpa_flow_tbl_entry *entry;
891
892 entry = kzalloc(sizeof(*entry), GFP_KERNEL);
893 if (!entry)
894 return -ENOMEM;
895
896 if (is_multicast_ether_addr(eth_dst)) {
897 entry->key.priority = OFDPA_PRIORITY_TERM_MAC_MCAST;
898 entry->key.term_mac.goto_tbl =
899 ROCKER_OF_DPA_TABLE_ID_MULTICAST_ROUTING;
900 } else {
901 entry->key.priority = OFDPA_PRIORITY_TERM_MAC_UCAST;
902 entry->key.term_mac.goto_tbl =
903 ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING;
904 }
905
906 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC;
907 entry->key.term_mac.in_pport = in_pport;
908 entry->key.term_mac.in_pport_mask = in_pport_mask;
909 entry->key.term_mac.eth_type = eth_type;
910 ether_addr_copy(entry->key.term_mac.eth_dst, eth_dst);
911 ether_addr_copy(entry->key.term_mac.eth_dst_mask, eth_dst_mask);
912 entry->key.term_mac.vlan_id = vlan_id;
913 entry->key.term_mac.vlan_id_mask = vlan_id_mask;
914 entry->key.term_mac.copy_to_cpu = copy_to_cpu;
915
916 return ofdpa_flow_tbl_do(ofdpa_port, flags, entry);
917 }
918
919 static int ofdpa_flow_tbl_bridge(struct ofdpa_port *ofdpa_port,
920 int flags, const u8 *eth_dst,
921 const u8 *eth_dst_mask, __be16 vlan_id,
922 u32 tunnel_id,
923 enum rocker_of_dpa_table_id goto_tbl,
924 u32 group_id, bool copy_to_cpu)
925 {
926 struct ofdpa_flow_tbl_entry *entry;
927 u32 priority;
928 bool vlan_bridging = !!vlan_id;
929 bool dflt = !eth_dst || (eth_dst && eth_dst_mask);
930 bool wild = false;
931
932 entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
933 if (!entry)
934 return -ENOMEM;
935
936 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_BRIDGING;
937
938 if (eth_dst) {
939 entry->key.bridge.has_eth_dst = 1;
940 ether_addr_copy(entry->key.bridge.eth_dst, eth_dst);
941 }
942 if (eth_dst_mask) {
943 entry->key.bridge.has_eth_dst_mask = 1;
944 ether_addr_copy(entry->key.bridge.eth_dst_mask, eth_dst_mask);
945 if (!ether_addr_equal(eth_dst_mask, ff_mac))
946 wild = true;
947 }
948
949 priority = OFDPA_PRIORITY_UNKNOWN;
950 if (vlan_bridging && dflt && wild)
951 priority = OFDPA_PRIORITY_BRIDGING_VLAN_DFLT_WILD;
952 else if (vlan_bridging && dflt && !wild)
953 priority = OFDPA_PRIORITY_BRIDGING_VLAN_DFLT_EXACT;
954 else if (vlan_bridging && !dflt)
955 priority = OFDPA_PRIORITY_BRIDGING_VLAN;
956 else if (!vlan_bridging && dflt && wild)
957 priority = OFDPA_PRIORITY_BRIDGING_TENANT_DFLT_WILD;
958 else if (!vlan_bridging && dflt && !wild)
959 priority = OFDPA_PRIORITY_BRIDGING_TENANT_DFLT_EXACT;
960 else if (!vlan_bridging && !dflt)
961 priority = OFDPA_PRIORITY_BRIDGING_TENANT;
962
963 entry->key.priority = priority;
964 entry->key.bridge.vlan_id = vlan_id;
965 entry->key.bridge.tunnel_id = tunnel_id;
966 entry->key.bridge.goto_tbl = goto_tbl;
967 entry->key.bridge.group_id = group_id;
968 entry->key.bridge.copy_to_cpu = copy_to_cpu;
969
970 return ofdpa_flow_tbl_do(ofdpa_port, flags, entry);
971 }
972
973 static int ofdpa_flow_tbl_ucast4_routing(struct ofdpa_port *ofdpa_port,
974 __be16 eth_type, __be32 dst,
975 __be32 dst_mask, u32 priority,
976 enum rocker_of_dpa_table_id goto_tbl,
977 u32 group_id, struct fib_info *fi,
978 int flags)
979 {
980 struct ofdpa_flow_tbl_entry *entry;
981
982 entry = kzalloc(sizeof(*entry), GFP_KERNEL);
983 if (!entry)
984 return -ENOMEM;
985
986 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING;
987 entry->key.priority = priority;
988 entry->key.ucast_routing.eth_type = eth_type;
989 entry->key.ucast_routing.dst4 = dst;
990 entry->key.ucast_routing.dst4_mask = dst_mask;
991 entry->key.ucast_routing.goto_tbl = goto_tbl;
992 entry->key.ucast_routing.group_id = group_id;
993 entry->key_len = offsetof(struct ofdpa_flow_tbl_key,
994 ucast_routing.group_id);
995 entry->fi = fi;
996
997 return ofdpa_flow_tbl_do(ofdpa_port, flags, entry);
998 }
999
1000 static int ofdpa_flow_tbl_acl(struct ofdpa_port *ofdpa_port, int flags,
1001 u32 in_pport, u32 in_pport_mask,
1002 const u8 *eth_src, const u8 *eth_src_mask,
1003 const u8 *eth_dst, const u8 *eth_dst_mask,
1004 __be16 eth_type, __be16 vlan_id,
1005 __be16 vlan_id_mask, u8 ip_proto,
1006 u8 ip_proto_mask, u8 ip_tos, u8 ip_tos_mask,
1007 u32 group_id)
1008 {
1009 u32 priority;
1010 struct ofdpa_flow_tbl_entry *entry;
1011
1012 entry = kzalloc(sizeof(*entry), GFP_KERNEL);
1013 if (!entry)
1014 return -ENOMEM;
1015
1016 priority = OFDPA_PRIORITY_ACL_NORMAL;
1017 if (eth_dst && eth_dst_mask) {
1018 if (ether_addr_equal(eth_dst_mask, mcast_mac))
1019 priority = OFDPA_PRIORITY_ACL_DFLT;
1020 else if (is_link_local_ether_addr(eth_dst))
1021 priority = OFDPA_PRIORITY_ACL_CTRL;
1022 }
1023
1024 entry->key.priority = priority;
1025 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
1026 entry->key.acl.in_pport = in_pport;
1027 entry->key.acl.in_pport_mask = in_pport_mask;
1028
1029 if (eth_src)
1030 ether_addr_copy(entry->key.acl.eth_src, eth_src);
1031 if (eth_src_mask)
1032 ether_addr_copy(entry->key.acl.eth_src_mask, eth_src_mask);
1033 if (eth_dst)
1034 ether_addr_copy(entry->key.acl.eth_dst, eth_dst);
1035 if (eth_dst_mask)
1036 ether_addr_copy(entry->key.acl.eth_dst_mask, eth_dst_mask);
1037
1038 entry->key.acl.eth_type = eth_type;
1039 entry->key.acl.vlan_id = vlan_id;
1040 entry->key.acl.vlan_id_mask = vlan_id_mask;
1041 entry->key.acl.ip_proto = ip_proto;
1042 entry->key.acl.ip_proto_mask = ip_proto_mask;
1043 entry->key.acl.ip_tos = ip_tos;
1044 entry->key.acl.ip_tos_mask = ip_tos_mask;
1045 entry->key.acl.group_id = group_id;
1046
1047 return ofdpa_flow_tbl_do(ofdpa_port, flags, entry);
1048 }
1049
1050 static struct ofdpa_group_tbl_entry *
1051 ofdpa_group_tbl_find(const struct ofdpa *ofdpa,
1052 const struct ofdpa_group_tbl_entry *match)
1053 {
1054 struct ofdpa_group_tbl_entry *found;
1055
1056 hash_for_each_possible(ofdpa->group_tbl, found,
1057 entry, match->group_id) {
1058 if (found->group_id == match->group_id)
1059 return found;
1060 }
1061
1062 return NULL;
1063 }
1064
1065 static void ofdpa_group_tbl_entry_free(struct ofdpa_group_tbl_entry *entry)
1066 {
1067 switch (ROCKER_GROUP_TYPE_GET(entry->group_id)) {
1068 case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD:
1069 case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST:
1070 kfree(entry->group_ids);
1071 break;
1072 default:
1073 break;
1074 }
1075 kfree(entry);
1076 }
1077
1078 static int ofdpa_group_tbl_add(struct ofdpa_port *ofdpa_port, int flags,
1079 struct ofdpa_group_tbl_entry *match)
1080 {
1081 struct ofdpa *ofdpa = ofdpa_port->ofdpa;
1082 struct ofdpa_group_tbl_entry *found;
1083 unsigned long lock_flags;
1084
1085 spin_lock_irqsave(&ofdpa->group_tbl_lock, lock_flags);
1086
1087 found = ofdpa_group_tbl_find(ofdpa, match);
1088
1089 if (found) {
1090 hash_del(&found->entry);
1091 ofdpa_group_tbl_entry_free(found);
1092 found = match;
1093 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_MOD;
1094 } else {
1095 found = match;
1096 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_ADD;
1097 }
1098
1099 hash_add(ofdpa->group_tbl, &found->entry, found->group_id);
1100
1101 spin_unlock_irqrestore(&ofdpa->group_tbl_lock, lock_flags);
1102
1103 return rocker_cmd_exec(ofdpa_port->rocker_port,
1104 ofdpa_flags_nowait(flags),
1105 ofdpa_cmd_group_tbl_add,
1106 found, NULL, NULL);
1107 }
1108
1109 static int ofdpa_group_tbl_del(struct ofdpa_port *ofdpa_port, int flags,
1110 struct ofdpa_group_tbl_entry *match)
1111 {
1112 struct ofdpa *ofdpa = ofdpa_port->ofdpa;
1113 struct ofdpa_group_tbl_entry *found;
1114 unsigned long lock_flags;
1115 int err = 0;
1116
1117 spin_lock_irqsave(&ofdpa->group_tbl_lock, lock_flags);
1118
1119 found = ofdpa_group_tbl_find(ofdpa, match);
1120
1121 if (found) {
1122 hash_del(&found->entry);
1123 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_DEL;
1124 }
1125
1126 spin_unlock_irqrestore(&ofdpa->group_tbl_lock, lock_flags);
1127
1128 ofdpa_group_tbl_entry_free(match);
1129
1130 if (found) {
1131 err = rocker_cmd_exec(ofdpa_port->rocker_port,
1132 ofdpa_flags_nowait(flags),
1133 ofdpa_cmd_group_tbl_del,
1134 found, NULL, NULL);
1135 ofdpa_group_tbl_entry_free(found);
1136 }
1137
1138 return err;
1139 }
1140
1141 static int ofdpa_group_tbl_do(struct ofdpa_port *ofdpa_port, int flags,
1142 struct ofdpa_group_tbl_entry *entry)
1143 {
1144 if (flags & OFDPA_OP_FLAG_REMOVE)
1145 return ofdpa_group_tbl_del(ofdpa_port, flags, entry);
1146 else
1147 return ofdpa_group_tbl_add(ofdpa_port, flags, entry);
1148 }
1149
1150 static int ofdpa_group_l2_interface(struct ofdpa_port *ofdpa_port,
1151 int flags, __be16 vlan_id,
1152 u32 out_pport, int pop_vlan)
1153 {
1154 struct ofdpa_group_tbl_entry *entry;
1155
1156 entry = kzalloc(sizeof(*entry), GFP_KERNEL);
1157 if (!entry)
1158 return -ENOMEM;
1159
1160 entry->group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport);
1161 entry->l2_interface.pop_vlan = pop_vlan;
1162
1163 return ofdpa_group_tbl_do(ofdpa_port, flags, entry);
1164 }
1165
1166 static int ofdpa_group_l2_fan_out(struct ofdpa_port *ofdpa_port,
1167 int flags, u8 group_count,
1168 const u32 *group_ids, u32 group_id)
1169 {
1170 struct ofdpa_group_tbl_entry *entry;
1171
1172 entry = kzalloc(sizeof(*entry), GFP_KERNEL);
1173 if (!entry)
1174 return -ENOMEM;
1175
1176 entry->group_id = group_id;
1177 entry->group_count = group_count;
1178
1179 entry->group_ids = kcalloc(group_count, sizeof(u32), GFP_KERNEL);
1180 if (!entry->group_ids) {
1181 kfree(entry);
1182 return -ENOMEM;
1183 }
1184 memcpy(entry->group_ids, group_ids, group_count * sizeof(u32));
1185
1186 return ofdpa_group_tbl_do(ofdpa_port, flags, entry);
1187 }
1188
1189 static int ofdpa_group_l2_flood(struct ofdpa_port *ofdpa_port,
1190 int flags, __be16 vlan_id,
1191 u8 group_count, const u32 *group_ids,
1192 u32 group_id)
1193 {
1194 return ofdpa_group_l2_fan_out(ofdpa_port, flags,
1195 group_count, group_ids,
1196 group_id);
1197 }
1198
1199 static int ofdpa_group_l3_unicast(struct ofdpa_port *ofdpa_port, int flags,
1200 u32 index, const u8 *src_mac, const u8 *dst_mac,
1201 __be16 vlan_id, bool ttl_check, u32 pport)
1202 {
1203 struct ofdpa_group_tbl_entry *entry;
1204
1205 entry = kzalloc(sizeof(*entry), GFP_KERNEL);
1206 if (!entry)
1207 return -ENOMEM;
1208
1209 entry->group_id = ROCKER_GROUP_L3_UNICAST(index);
1210 if (src_mac)
1211 ether_addr_copy(entry->l3_unicast.eth_src, src_mac);
1212 if (dst_mac)
1213 ether_addr_copy(entry->l3_unicast.eth_dst, dst_mac);
1214 entry->l3_unicast.vlan_id = vlan_id;
1215 entry->l3_unicast.ttl_check = ttl_check;
1216 entry->l3_unicast.group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, pport);
1217
1218 return ofdpa_group_tbl_do(ofdpa_port, flags, entry);
1219 }
1220
1221 static struct ofdpa_neigh_tbl_entry *
1222 ofdpa_neigh_tbl_find(const struct ofdpa *ofdpa, __be32 ip_addr)
1223 {
1224 struct ofdpa_neigh_tbl_entry *found;
1225
1226 hash_for_each_possible(ofdpa->neigh_tbl, found,
1227 entry, be32_to_cpu(ip_addr))
1228 if (found->ip_addr == ip_addr)
1229 return found;
1230
1231 return NULL;
1232 }
1233
1234 static void ofdpa_neigh_add(struct ofdpa *ofdpa,
1235 struct ofdpa_neigh_tbl_entry *entry)
1236 {
1237 entry->index = ofdpa->neigh_tbl_next_index++;
1238 entry->ref_count++;
1239 hash_add(ofdpa->neigh_tbl, &entry->entry,
1240 be32_to_cpu(entry->ip_addr));
1241 }
1242
1243 static void ofdpa_neigh_del(struct ofdpa_neigh_tbl_entry *entry)
1244 {
1245 if (--entry->ref_count == 0) {
1246 hash_del(&entry->entry);
1247 kfree(entry);
1248 }
1249 }
1250
1251 static void ofdpa_neigh_update(struct ofdpa_neigh_tbl_entry *entry,
1252 const u8 *eth_dst, bool ttl_check)
1253 {
1254 if (eth_dst) {
1255 ether_addr_copy(entry->eth_dst, eth_dst);
1256 entry->ttl_check = ttl_check;
1257 } else {
1258 entry->ref_count++;
1259 }
1260 }
1261
1262 static int ofdpa_port_ipv4_neigh(struct ofdpa_port *ofdpa_port,
1263 int flags, __be32 ip_addr, const u8 *eth_dst)
1264 {
1265 struct ofdpa *ofdpa = ofdpa_port->ofdpa;
1266 struct ofdpa_neigh_tbl_entry *entry;
1267 struct ofdpa_neigh_tbl_entry *found;
1268 unsigned long lock_flags;
1269 __be16 eth_type = htons(ETH_P_IP);
1270 enum rocker_of_dpa_table_id goto_tbl =
1271 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
1272 u32 group_id;
1273 u32 priority = 0;
1274 bool adding = !(flags & OFDPA_OP_FLAG_REMOVE);
1275 bool updating;
1276 bool removing;
1277 int err = 0;
1278
1279 entry = kzalloc(sizeof(*entry), GFP_KERNEL);
1280 if (!entry)
1281 return -ENOMEM;
1282
1283 spin_lock_irqsave(&ofdpa->neigh_tbl_lock, lock_flags);
1284
1285 found = ofdpa_neigh_tbl_find(ofdpa, ip_addr);
1286
1287 updating = found && adding;
1288 removing = found && !adding;
1289 adding = !found && adding;
1290
1291 if (adding) {
1292 entry->ip_addr = ip_addr;
1293 entry->dev = ofdpa_port->dev;
1294 ether_addr_copy(entry->eth_dst, eth_dst);
1295 entry->ttl_check = true;
1296 ofdpa_neigh_add(ofdpa, entry);
1297 } else if (removing) {
1298 memcpy(entry, found, sizeof(*entry));
1299 ofdpa_neigh_del(found);
1300 } else if (updating) {
1301 ofdpa_neigh_update(found, eth_dst, true);
1302 memcpy(entry, found, sizeof(*entry));
1303 } else {
1304 err = -ENOENT;
1305 }
1306
1307 spin_unlock_irqrestore(&ofdpa->neigh_tbl_lock, lock_flags);
1308
1309 if (err)
1310 goto err_out;
1311
1312 /* For each active neighbor, we have an L3 unicast group and
1313 * a /32 route to the neighbor, which uses the L3 unicast
1314 * group. The L3 unicast group can also be referred to by
1315 * other routes' nexthops.
1316 */
1317
1318 err = ofdpa_group_l3_unicast(ofdpa_port, flags,
1319 entry->index,
1320 ofdpa_port->dev->dev_addr,
1321 entry->eth_dst,
1322 ofdpa_port->internal_vlan_id,
1323 entry->ttl_check,
1324 ofdpa_port->pport);
1325 if (err) {
1326 netdev_err(ofdpa_port->dev, "Error (%d) L3 unicast group index %d\n",
1327 err, entry->index);
1328 goto err_out;
1329 }
1330
1331 if (adding || removing) {
1332 group_id = ROCKER_GROUP_L3_UNICAST(entry->index);
1333 err = ofdpa_flow_tbl_ucast4_routing(ofdpa_port,
1334 eth_type, ip_addr,
1335 inet_make_mask(32),
1336 priority, goto_tbl,
1337 group_id, NULL, flags);
1338
1339 if (err)
1340 netdev_err(ofdpa_port->dev, "Error (%d) /32 unicast route %pI4 group 0x%08x\n",
1341 err, &entry->ip_addr, group_id);
1342 }
1343
1344 err_out:
1345 if (!adding)
1346 kfree(entry);
1347
1348 return err;
1349 }
1350
1351 static int ofdpa_port_ipv4_resolve(struct ofdpa_port *ofdpa_port,
1352 __be32 ip_addr)
1353 {
1354 struct net_device *dev = ofdpa_port->dev;
1355 struct neighbour *n = __ipv4_neigh_lookup(dev, (__force u32)ip_addr);
1356 int err = 0;
1357
1358 if (!n) {
1359 n = neigh_create(&arp_tbl, &ip_addr, dev);
1360 if (IS_ERR(n))
1361 return PTR_ERR(n);
1362 }
1363
1364 /* If the neigh is already resolved, then go ahead and
1365 * install the entry, otherwise start the ARP process to
1366 * resolve the neigh.
1367 */
1368
1369 if (n->nud_state & NUD_VALID)
1370 err = ofdpa_port_ipv4_neigh(ofdpa_port, 0,
1371 ip_addr, n->ha);
1372 else
1373 neigh_event_send(n, NULL);
1374
1375 neigh_release(n);
1376 return err;
1377 }
1378
1379 static int ofdpa_port_ipv4_nh(struct ofdpa_port *ofdpa_port,
1380 int flags, __be32 ip_addr, u32 *index)
1381 {
1382 struct ofdpa *ofdpa = ofdpa_port->ofdpa;
1383 struct ofdpa_neigh_tbl_entry *entry;
1384 struct ofdpa_neigh_tbl_entry *found;
1385 unsigned long lock_flags;
1386 bool adding = !(flags & OFDPA_OP_FLAG_REMOVE);
1387 bool updating;
1388 bool removing;
1389 bool resolved = true;
1390 int err = 0;
1391
1392 entry = kzalloc(sizeof(*entry), GFP_KERNEL);
1393 if (!entry)
1394 return -ENOMEM;
1395
1396 spin_lock_irqsave(&ofdpa->neigh_tbl_lock, lock_flags);
1397
1398 found = ofdpa_neigh_tbl_find(ofdpa, ip_addr);
1399
1400 updating = found && adding;
1401 removing = found && !adding;
1402 adding = !found && adding;
1403
1404 if (adding) {
1405 entry->ip_addr = ip_addr;
1406 entry->dev = ofdpa_port->dev;
1407 ofdpa_neigh_add(ofdpa, entry);
1408 *index = entry->index;
1409 resolved = false;
1410 } else if (removing) {
1411 *index = found->index;
1412 ofdpa_neigh_del(found);
1413 } else if (updating) {
1414 ofdpa_neigh_update(found, NULL, false);
1415 resolved = !is_zero_ether_addr(found->eth_dst);
1416 *index = found->index;
1417 } else {
1418 err = -ENOENT;
1419 }
1420
1421 spin_unlock_irqrestore(&ofdpa->neigh_tbl_lock, lock_flags);
1422
1423 if (!adding)
1424 kfree(entry);
1425
1426 if (err)
1427 return err;
1428
1429 /* Resolved means neigh ip_addr is resolved to neigh mac. */
1430
1431 if (!resolved)
1432 err = ofdpa_port_ipv4_resolve(ofdpa_port, ip_addr);
1433
1434 return err;
1435 }
1436
1437 static struct ofdpa_port *ofdpa_port_get(const struct ofdpa *ofdpa,
1438 int port_index)
1439 {
1440 struct rocker_port *rocker_port;
1441
1442 rocker_port = ofdpa->rocker->ports[port_index];
1443 return rocker_port ? rocker_port->wpriv : NULL;
1444 }
1445
1446 static int ofdpa_port_vlan_flood_group(struct ofdpa_port *ofdpa_port,
1447 int flags, __be16 vlan_id)
1448 {
1449 struct ofdpa_port *p;
1450 const struct ofdpa *ofdpa = ofdpa_port->ofdpa;
1451 unsigned int port_count = ofdpa->rocker->port_count;
1452 u32 group_id = ROCKER_GROUP_L2_FLOOD(vlan_id, 0);
1453 u32 *group_ids;
1454 u8 group_count = 0;
1455 int err = 0;
1456 int i;
1457
1458 group_ids = kcalloc(port_count, sizeof(u32), GFP_KERNEL);
1459 if (!group_ids)
1460 return -ENOMEM;
1461
1462 /* Adjust the flood group for this VLAN. The flood group
1463 * references an L2 interface group for each port in this
1464 * VLAN.
1465 */
1466
1467 for (i = 0; i < port_count; i++) {
1468 p = ofdpa_port_get(ofdpa, i);
1469 if (!p)
1470 continue;
1471 if (!ofdpa_port_is_bridged(p))
1472 continue;
1473 if (test_bit(ntohs(vlan_id), p->vlan_bitmap)) {
1474 group_ids[group_count++] =
1475 ROCKER_GROUP_L2_INTERFACE(vlan_id, p->pport);
1476 }
1477 }
1478
1479 /* If there are no bridged ports in this VLAN, we're done */
1480 if (group_count == 0)
1481 goto no_ports_in_vlan;
1482
1483 err = ofdpa_group_l2_flood(ofdpa_port, flags, vlan_id,
1484 group_count, group_ids, group_id);
1485 if (err)
1486 netdev_err(ofdpa_port->dev, "Error (%d) port VLAN l2 flood group\n", err);
1487
1488 no_ports_in_vlan:
1489 kfree(group_ids);
1490 return err;
1491 }
1492
1493 static int ofdpa_port_vlan_l2_groups(struct ofdpa_port *ofdpa_port, int flags,
1494 __be16 vlan_id, bool pop_vlan)
1495 {
1496 const struct ofdpa *ofdpa = ofdpa_port->ofdpa;
1497 unsigned int port_count = ofdpa->rocker->port_count;
1498 struct ofdpa_port *p;
1499 bool adding = !(flags & OFDPA_OP_FLAG_REMOVE);
1500 u32 out_pport;
1501 int ref = 0;
1502 int err;
1503 int i;
1504
1505 /* An L2 interface group for this port in this VLAN, but
1506 * only when port STP state is LEARNING|FORWARDING.
1507 */
1508
1509 if (ofdpa_port->stp_state == BR_STATE_LEARNING ||
1510 ofdpa_port->stp_state == BR_STATE_FORWARDING) {
1511 out_pport = ofdpa_port->pport;
1512 err = ofdpa_group_l2_interface(ofdpa_port, flags,
1513 vlan_id, out_pport, pop_vlan);
1514 if (err) {
1515 netdev_err(ofdpa_port->dev, "Error (%d) port VLAN l2 group for pport %d\n",
1516 err, out_pport);
1517 return err;
1518 }
1519 }
1520
1521 /* An L2 interface group for this VLAN to CPU port.
1522 * Add when first port joins this VLAN and destroy when
1523 * last port leaves this VLAN.
1524 */
1525
1526 for (i = 0; i < port_count; i++) {
1527 p = ofdpa_port_get(ofdpa, i);
1528 if (p && test_bit(ntohs(vlan_id), p->vlan_bitmap))
1529 ref++;
1530 }
1531
1532 if ((!adding || ref != 1) && (adding || ref != 0))
1533 return 0;
1534
1535 out_pport = 0;
1536 err = ofdpa_group_l2_interface(ofdpa_port, flags,
1537 vlan_id, out_pport, pop_vlan);
1538 if (err) {
1539 netdev_err(ofdpa_port->dev, "Error (%d) port VLAN l2 group for CPU port\n", err);
1540 return err;
1541 }
1542
1543 return 0;
1544 }
1545
1546 static struct ofdpa_ctrl {
1547 const u8 *eth_dst;
1548 const u8 *eth_dst_mask;
1549 __be16 eth_type;
1550 bool acl;
1551 bool bridge;
1552 bool term;
1553 bool copy_to_cpu;
1554 } ofdpa_ctrls[] = {
1555 [OFDPA_CTRL_LINK_LOCAL_MCAST] = {
1556 /* pass link local multicast pkts up to CPU for filtering */
1557 .eth_dst = ll_mac,
1558 .eth_dst_mask = ll_mask,
1559 .acl = true,
1560 },
1561 [OFDPA_CTRL_LOCAL_ARP] = {
1562 /* pass local ARP pkts up to CPU */
1563 .eth_dst = zero_mac,
1564 .eth_dst_mask = zero_mac,
1565 .eth_type = htons(ETH_P_ARP),
1566 .acl = true,
1567 },
1568 [OFDPA_CTRL_IPV4_MCAST] = {
1569 /* pass IPv4 mcast pkts up to CPU, RFC 1112 */
1570 .eth_dst = ipv4_mcast,
1571 .eth_dst_mask = ipv4_mask,
1572 .eth_type = htons(ETH_P_IP),
1573 .term = true,
1574 .copy_to_cpu = true,
1575 },
1576 [OFDPA_CTRL_IPV6_MCAST] = {
1577 /* pass IPv6 mcast pkts up to CPU, RFC 2464 */
1578 .eth_dst = ipv6_mcast,
1579 .eth_dst_mask = ipv6_mask,
1580 .eth_type = htons(ETH_P_IPV6),
1581 .term = true,
1582 .copy_to_cpu = true,
1583 },
1584 [OFDPA_CTRL_DFLT_BRIDGING] = {
1585 /* flood any pkts on vlan */
1586 .bridge = true,
1587 .copy_to_cpu = true,
1588 },
1589 [OFDPA_CTRL_DFLT_OVS] = {
1590 /* pass all pkts up to CPU */
1591 .eth_dst = zero_mac,
1592 .eth_dst_mask = zero_mac,
1593 .acl = true,
1594 },
1595 };
1596
1597 static int ofdpa_port_ctrl_vlan_acl(struct ofdpa_port *ofdpa_port, int flags,
1598 const struct ofdpa_ctrl *ctrl, __be16 vlan_id)
1599 {
1600 u32 in_pport = ofdpa_port->pport;
1601 u32 in_pport_mask = 0xffffffff;
1602 u32 out_pport = 0;
1603 const u8 *eth_src = NULL;
1604 const u8 *eth_src_mask = NULL;
1605 __be16 vlan_id_mask = htons(0xffff);
1606 u8 ip_proto = 0;
1607 u8 ip_proto_mask = 0;
1608 u8 ip_tos = 0;
1609 u8 ip_tos_mask = 0;
1610 u32 group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport);
1611 int err;
1612
1613 err = ofdpa_flow_tbl_acl(ofdpa_port, flags,
1614 in_pport, in_pport_mask,
1615 eth_src, eth_src_mask,
1616 ctrl->eth_dst, ctrl->eth_dst_mask,
1617 ctrl->eth_type,
1618 vlan_id, vlan_id_mask,
1619 ip_proto, ip_proto_mask,
1620 ip_tos, ip_tos_mask,
1621 group_id);
1622
1623 if (err)
1624 netdev_err(ofdpa_port->dev, "Error (%d) ctrl ACL\n", err);
1625
1626 return err;
1627 }
1628
1629 static int ofdpa_port_ctrl_vlan_bridge(struct ofdpa_port *ofdpa_port,
1630 int flags, const struct ofdpa_ctrl *ctrl,
1631 __be16 vlan_id)
1632 {
1633 enum rocker_of_dpa_table_id goto_tbl =
1634 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
1635 u32 group_id = ROCKER_GROUP_L2_FLOOD(vlan_id, 0);
1636 u32 tunnel_id = 0;
1637 int err;
1638
1639 if (!ofdpa_port_is_bridged(ofdpa_port))
1640 return 0;
1641
1642 err = ofdpa_flow_tbl_bridge(ofdpa_port, flags,
1643 ctrl->eth_dst, ctrl->eth_dst_mask,
1644 vlan_id, tunnel_id,
1645 goto_tbl, group_id, ctrl->copy_to_cpu);
1646
1647 if (err)
1648 netdev_err(ofdpa_port->dev, "Error (%d) ctrl FLOOD\n", err);
1649
1650 return err;
1651 }
1652
1653 static int ofdpa_port_ctrl_vlan_term(struct ofdpa_port *ofdpa_port, int flags,
1654 const struct ofdpa_ctrl *ctrl, __be16 vlan_id)
1655 {
1656 u32 in_pport_mask = 0xffffffff;
1657 __be16 vlan_id_mask = htons(0xffff);
1658 int err;
1659
1660 if (ntohs(vlan_id) == 0)
1661 vlan_id = ofdpa_port->internal_vlan_id;
1662
1663 err = ofdpa_flow_tbl_term_mac(ofdpa_port, ofdpa_port->pport, in_pport_mask,
1664 ctrl->eth_type, ctrl->eth_dst,
1665 ctrl->eth_dst_mask, vlan_id,
1666 vlan_id_mask, ctrl->copy_to_cpu,
1667 flags);
1668
1669 if (err)
1670 netdev_err(ofdpa_port->dev, "Error (%d) ctrl term\n", err);
1671
1672 return err;
1673 }
1674
1675 static int ofdpa_port_ctrl_vlan(struct ofdpa_port *ofdpa_port, int flags,
1676 const struct ofdpa_ctrl *ctrl, __be16 vlan_id)
1677 {
1678 if (ctrl->acl)
1679 return ofdpa_port_ctrl_vlan_acl(ofdpa_port, flags,
1680 ctrl, vlan_id);
1681 if (ctrl->bridge)
1682 return ofdpa_port_ctrl_vlan_bridge(ofdpa_port, flags,
1683 ctrl, vlan_id);
1684
1685 if (ctrl->term)
1686 return ofdpa_port_ctrl_vlan_term(ofdpa_port, flags,
1687 ctrl, vlan_id);
1688
1689 return -EOPNOTSUPP;
1690 }
1691
1692 static int ofdpa_port_ctrl_vlan_add(struct ofdpa_port *ofdpa_port, int flags,
1693 __be16 vlan_id)
1694 {
1695 int err = 0;
1696 int i;
1697
1698 for (i = 0; i < OFDPA_CTRL_MAX; i++) {
1699 if (ofdpa_port->ctrls[i]) {
1700 err = ofdpa_port_ctrl_vlan(ofdpa_port, flags,
1701 &ofdpa_ctrls[i], vlan_id);
1702 if (err)
1703 return err;
1704 }
1705 }
1706
1707 return err;
1708 }
1709
1710 static int ofdpa_port_ctrl(struct ofdpa_port *ofdpa_port, int flags,
1711 const struct ofdpa_ctrl *ctrl)
1712 {
1713 u16 vid;
1714 int err = 0;
1715
1716 for (vid = 1; vid < VLAN_N_VID; vid++) {
1717 if (!test_bit(vid, ofdpa_port->vlan_bitmap))
1718 continue;
1719 err = ofdpa_port_ctrl_vlan(ofdpa_port, flags,
1720 ctrl, htons(vid));
1721 if (err)
1722 break;
1723 }
1724
1725 return err;
1726 }
1727
1728 static int ofdpa_port_vlan(struct ofdpa_port *ofdpa_port, int flags,
1729 u16 vid)
1730 {
1731 enum rocker_of_dpa_table_id goto_tbl =
1732 ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC;
1733 u32 in_pport = ofdpa_port->pport;
1734 __be16 vlan_id = htons(vid);
1735 __be16 vlan_id_mask = htons(0xffff);
1736 __be16 internal_vlan_id;
1737 bool untagged;
1738 bool adding = !(flags & OFDPA_OP_FLAG_REMOVE);
1739 int err;
1740
1741 internal_vlan_id = ofdpa_port_vid_to_vlan(ofdpa_port, vid, &untagged);
1742
1743 if (adding &&
1744 test_bit(ntohs(internal_vlan_id), ofdpa_port->vlan_bitmap))
1745 return 0; /* already added */
1746 else if (!adding &&
1747 !test_bit(ntohs(internal_vlan_id), ofdpa_port->vlan_bitmap))
1748 return 0; /* already removed */
1749
1750 change_bit(ntohs(internal_vlan_id), ofdpa_port->vlan_bitmap);
1751
1752 if (adding) {
1753 err = ofdpa_port_ctrl_vlan_add(ofdpa_port, flags,
1754 internal_vlan_id);
1755 if (err) {
1756 netdev_err(ofdpa_port->dev, "Error (%d) port ctrl vlan add\n", err);
1757 goto err_vlan_add;
1758 }
1759 }
1760
1761 err = ofdpa_port_vlan_l2_groups(ofdpa_port, flags,
1762 internal_vlan_id, untagged);
1763 if (err) {
1764 netdev_err(ofdpa_port->dev, "Error (%d) port VLAN l2 groups\n", err);
1765 goto err_vlan_l2_groups;
1766 }
1767
1768 err = ofdpa_port_vlan_flood_group(ofdpa_port, flags,
1769 internal_vlan_id);
1770 if (err) {
1771 netdev_err(ofdpa_port->dev, "Error (%d) port VLAN l2 flood group\n", err);
1772 goto err_flood_group;
1773 }
1774
1775 err = ofdpa_flow_tbl_vlan(ofdpa_port, flags,
1776 in_pport, vlan_id, vlan_id_mask,
1777 goto_tbl, untagged, internal_vlan_id);
1778 if (err)
1779 netdev_err(ofdpa_port->dev, "Error (%d) port VLAN table\n", err);
1780
1781 return 0;
1782
1783 err_vlan_add:
1784 err_vlan_l2_groups:
1785 err_flood_group:
1786 change_bit(ntohs(internal_vlan_id), ofdpa_port->vlan_bitmap);
1787 return err;
1788 }
1789
1790 static int ofdpa_port_ig_tbl(struct ofdpa_port *ofdpa_port, int flags)
1791 {
1792 enum rocker_of_dpa_table_id goto_tbl;
1793 u32 in_pport;
1794 u32 in_pport_mask;
1795 int err;
1796
1797 /* Normal Ethernet Frames. Matches pkts from any local physical
1798 * ports. Goto VLAN tbl.
1799 */
1800
1801 in_pport = 0;
1802 in_pport_mask = 0xffff0000;
1803 goto_tbl = ROCKER_OF_DPA_TABLE_ID_VLAN;
1804
1805 err = ofdpa_flow_tbl_ig_port(ofdpa_port, flags,
1806 in_pport, in_pport_mask,
1807 goto_tbl);
1808 if (err)
1809 netdev_err(ofdpa_port->dev, "Error (%d) ingress port table entry\n", err);
1810
1811 return err;
1812 }
1813
1814 struct ofdpa_fdb_learn_work {
1815 struct work_struct work;
1816 struct ofdpa_port *ofdpa_port;
1817 int flags;
1818 u8 addr[ETH_ALEN];
1819 u16 vid;
1820 };
1821
1822 static void ofdpa_port_fdb_learn_work(struct work_struct *work)
1823 {
1824 const struct ofdpa_fdb_learn_work *lw =
1825 container_of(work, struct ofdpa_fdb_learn_work, work);
1826 bool removing = (lw->flags & OFDPA_OP_FLAG_REMOVE);
1827 bool learned = (lw->flags & OFDPA_OP_FLAG_LEARNED);
1828 struct switchdev_notifier_fdb_info info;
1829
1830 info.addr = lw->addr;
1831 info.vid = lw->vid;
1832
1833 rtnl_lock();
1834 if (learned && removing)
1835 call_switchdev_notifiers(SWITCHDEV_FDB_DEL_TO_BRIDGE,
1836 lw->ofdpa_port->dev, &info.info, NULL);
1837 else if (learned && !removing)
1838 call_switchdev_notifiers(SWITCHDEV_FDB_ADD_TO_BRIDGE,
1839 lw->ofdpa_port->dev, &info.info, NULL);
1840 rtnl_unlock();
1841
1842 kfree(work);
1843 }
1844
1845 static int ofdpa_port_fdb_learn(struct ofdpa_port *ofdpa_port,
1846 int flags, const u8 *addr, __be16 vlan_id)
1847 {
1848 struct ofdpa_fdb_learn_work *lw;
1849 enum rocker_of_dpa_table_id goto_tbl =
1850 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
1851 u32 out_pport = ofdpa_port->pport;
1852 u32 tunnel_id = 0;
1853 u32 group_id = ROCKER_GROUP_NONE;
1854 bool copy_to_cpu = false;
1855 int err;
1856
1857 if (ofdpa_port_is_bridged(ofdpa_port))
1858 group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport);
1859
1860 if (!(flags & OFDPA_OP_FLAG_REFRESH)) {
1861 err = ofdpa_flow_tbl_bridge(ofdpa_port, flags, addr,
1862 NULL, vlan_id, tunnel_id, goto_tbl,
1863 group_id, copy_to_cpu);
1864 if (err)
1865 return err;
1866 }
1867
1868 if (!ofdpa_port_is_bridged(ofdpa_port))
1869 return 0;
1870
1871 lw = kzalloc(sizeof(*lw), GFP_ATOMIC);
1872 if (!lw)
1873 return -ENOMEM;
1874
1875 INIT_WORK(&lw->work, ofdpa_port_fdb_learn_work);
1876
1877 lw->ofdpa_port = ofdpa_port;
1878 lw->flags = flags;
1879 ether_addr_copy(lw->addr, addr);
1880 lw->vid = ofdpa_port_vlan_to_vid(ofdpa_port, vlan_id);
1881
1882 schedule_work(&lw->work);
1883 return 0;
1884 }
1885
1886 static struct ofdpa_fdb_tbl_entry *
1887 ofdpa_fdb_tbl_find(const struct ofdpa *ofdpa,
1888 const struct ofdpa_fdb_tbl_entry *match)
1889 {
1890 struct ofdpa_fdb_tbl_entry *found;
1891
1892 hash_for_each_possible(ofdpa->fdb_tbl, found, entry, match->key_crc32)
1893 if (memcmp(&found->key, &match->key, sizeof(found->key)) == 0)
1894 return found;
1895
1896 return NULL;
1897 }
1898
1899 static int ofdpa_port_fdb(struct ofdpa_port *ofdpa_port,
1900 const unsigned char *addr,
1901 __be16 vlan_id, int flags)
1902 {
1903 struct ofdpa *ofdpa = ofdpa_port->ofdpa;
1904 struct ofdpa_fdb_tbl_entry *fdb;
1905 struct ofdpa_fdb_tbl_entry *found;
1906 bool removing = (flags & OFDPA_OP_FLAG_REMOVE);
1907 unsigned long lock_flags;
1908
1909 fdb = kzalloc(sizeof(*fdb), GFP_KERNEL);
1910 if (!fdb)
1911 return -ENOMEM;
1912
1913 fdb->learned = (flags & OFDPA_OP_FLAG_LEARNED);
1914 fdb->touched = jiffies;
1915 fdb->key.ofdpa_port = ofdpa_port;
1916 ether_addr_copy(fdb->key.addr, addr);
1917 fdb->key.vlan_id = vlan_id;
1918 fdb->key_crc32 = crc32(~0, &fdb->key, sizeof(fdb->key));
1919
1920 spin_lock_irqsave(&ofdpa->fdb_tbl_lock, lock_flags);
1921
1922 found = ofdpa_fdb_tbl_find(ofdpa, fdb);
1923
1924 if (found) {
1925 found->touched = jiffies;
1926 if (removing) {
1927 kfree(fdb);
1928 hash_del(&found->entry);
1929 }
1930 } else if (!removing) {
1931 hash_add(ofdpa->fdb_tbl, &fdb->entry,
1932 fdb->key_crc32);
1933 }
1934
1935 spin_unlock_irqrestore(&ofdpa->fdb_tbl_lock, lock_flags);
1936
1937 /* Check if adding and already exists, or removing and can't find */
1938 if (!found != !removing) {
1939 kfree(fdb);
1940 if (!found && removing)
1941 return 0;
1942 /* Refreshing existing to update aging timers */
1943 flags |= OFDPA_OP_FLAG_REFRESH;
1944 }
1945
1946 return ofdpa_port_fdb_learn(ofdpa_port, flags, addr, vlan_id);
1947 }
1948
1949 static int ofdpa_port_fdb_flush(struct ofdpa_port *ofdpa_port, int flags)
1950 {
1951 struct ofdpa *ofdpa = ofdpa_port->ofdpa;
1952 struct ofdpa_fdb_tbl_entry *found;
1953 unsigned long lock_flags;
1954 struct hlist_node *tmp;
1955 int bkt;
1956 int err = 0;
1957
1958 if (ofdpa_port->stp_state == BR_STATE_LEARNING ||
1959 ofdpa_port->stp_state == BR_STATE_FORWARDING)
1960 return 0;
1961
1962 flags |= OFDPA_OP_FLAG_NOWAIT | OFDPA_OP_FLAG_REMOVE;
1963
1964 spin_lock_irqsave(&ofdpa->fdb_tbl_lock, lock_flags);
1965
1966 hash_for_each_safe(ofdpa->fdb_tbl, bkt, tmp, found, entry) {
1967 if (found->key.ofdpa_port != ofdpa_port)
1968 continue;
1969 if (!found->learned)
1970 continue;
1971 err = ofdpa_port_fdb_learn(ofdpa_port, flags,
1972 found->key.addr,
1973 found->key.vlan_id);
1974 if (err)
1975 goto err_out;
1976 hash_del(&found->entry);
1977 }
1978
1979 err_out:
1980 spin_unlock_irqrestore(&ofdpa->fdb_tbl_lock, lock_flags);
1981
1982 return err;
1983 }
1984
1985 static void ofdpa_fdb_cleanup(struct timer_list *t)
1986 {
1987 struct ofdpa *ofdpa = from_timer(ofdpa, t, fdb_cleanup_timer);
1988 struct ofdpa_port *ofdpa_port;
1989 struct ofdpa_fdb_tbl_entry *entry;
1990 struct hlist_node *tmp;
1991 unsigned long next_timer = jiffies + ofdpa->ageing_time;
1992 unsigned long expires;
1993 unsigned long lock_flags;
1994 int flags = OFDPA_OP_FLAG_NOWAIT | OFDPA_OP_FLAG_REMOVE |
1995 OFDPA_OP_FLAG_LEARNED;
1996 int bkt;
1997
1998 spin_lock_irqsave(&ofdpa->fdb_tbl_lock, lock_flags);
1999
2000 hash_for_each_safe(ofdpa->fdb_tbl, bkt, tmp, entry, entry) {
2001 if (!entry->learned)
2002 continue;
2003 ofdpa_port = entry->key.ofdpa_port;
2004 expires = entry->touched + ofdpa_port->ageing_time;
2005 if (time_before_eq(expires, jiffies)) {
2006 ofdpa_port_fdb_learn(ofdpa_port, flags,
2007 entry->key.addr,
2008 entry->key.vlan_id);
2009 hash_del(&entry->entry);
2010 } else if (time_before(expires, next_timer)) {
2011 next_timer = expires;
2012 }
2013 }
2014
2015 spin_unlock_irqrestore(&ofdpa->fdb_tbl_lock, lock_flags);
2016
2017 mod_timer(&ofdpa->fdb_cleanup_timer, round_jiffies_up(next_timer));
2018 }
2019
2020 static int ofdpa_port_router_mac(struct ofdpa_port *ofdpa_port,
2021 int flags, __be16 vlan_id)
2022 {
2023 u32 in_pport_mask = 0xffffffff;
2024 __be16 eth_type;
2025 const u8 *dst_mac_mask = ff_mac;
2026 __be16 vlan_id_mask = htons(0xffff);
2027 bool copy_to_cpu = false;
2028 int err;
2029
2030 if (ntohs(vlan_id) == 0)
2031 vlan_id = ofdpa_port->internal_vlan_id;
2032
2033 eth_type = htons(ETH_P_IP);
2034 err = ofdpa_flow_tbl_term_mac(ofdpa_port, ofdpa_port->pport,
2035 in_pport_mask, eth_type,
2036 ofdpa_port->dev->dev_addr,
2037 dst_mac_mask, vlan_id, vlan_id_mask,
2038 copy_to_cpu, flags);
2039 if (err)
2040 return err;
2041
2042 eth_type = htons(ETH_P_IPV6);
2043 err = ofdpa_flow_tbl_term_mac(ofdpa_port, ofdpa_port->pport,
2044 in_pport_mask, eth_type,
2045 ofdpa_port->dev->dev_addr,
2046 dst_mac_mask, vlan_id, vlan_id_mask,
2047 copy_to_cpu, flags);
2048
2049 return err;
2050 }
2051
2052 static int ofdpa_port_fwding(struct ofdpa_port *ofdpa_port, int flags)
2053 {
2054 bool pop_vlan;
2055 u32 out_pport;
2056 __be16 vlan_id;
2057 u16 vid;
2058 int err;
2059
2060 /* Port will be forwarding-enabled if its STP state is LEARNING
2061 * or FORWARDING. Traffic from CPU can still egress, regardless of
2062 * port STP state. Use L2 interface group on port VLANs as a way
2063 * to toggle port forwarding: if forwarding is disabled, L2
2064 * interface group will not exist.
2065 */
2066
2067 if (ofdpa_port->stp_state != BR_STATE_LEARNING &&
2068 ofdpa_port->stp_state != BR_STATE_FORWARDING)
2069 flags |= OFDPA_OP_FLAG_REMOVE;
2070
2071 out_pport = ofdpa_port->pport;
2072 for (vid = 1; vid < VLAN_N_VID; vid++) {
2073 if (!test_bit(vid, ofdpa_port->vlan_bitmap))
2074 continue;
2075 vlan_id = htons(vid);
2076 pop_vlan = ofdpa_vlan_id_is_internal(vlan_id);
2077 err = ofdpa_group_l2_interface(ofdpa_port, flags,
2078 vlan_id, out_pport, pop_vlan);
2079 if (err) {
2080 netdev_err(ofdpa_port->dev, "Error (%d) port VLAN l2 group for pport %d\n",
2081 err, out_pport);
2082 return err;
2083 }
2084 }
2085
2086 return 0;
2087 }
2088
2089 static int ofdpa_port_stp_update(struct ofdpa_port *ofdpa_port,
2090 int flags, u8 state)
2091 {
2092 bool want[OFDPA_CTRL_MAX] = { 0, };
2093 bool prev_ctrls[OFDPA_CTRL_MAX];
2094 u8 prev_state;
2095 int err;
2096 int i;
2097
2098 memcpy(prev_ctrls, ofdpa_port->ctrls, sizeof(prev_ctrls));
2099 prev_state = ofdpa_port->stp_state;
2100
2101 if (ofdpa_port->stp_state == state)
2102 return 0;
2103
2104 ofdpa_port->stp_state = state;
2105
2106 switch (state) {
2107 case BR_STATE_DISABLED:
2108 /* port is completely disabled */
2109 break;
2110 case BR_STATE_LISTENING:
2111 case BR_STATE_BLOCKING:
2112 want[OFDPA_CTRL_LINK_LOCAL_MCAST] = true;
2113 break;
2114 case BR_STATE_LEARNING:
2115 case BR_STATE_FORWARDING:
2116 if (!ofdpa_port_is_ovsed(ofdpa_port))
2117 want[OFDPA_CTRL_LINK_LOCAL_MCAST] = true;
2118 want[OFDPA_CTRL_IPV4_MCAST] = true;
2119 want[OFDPA_CTRL_IPV6_MCAST] = true;
2120 if (ofdpa_port_is_bridged(ofdpa_port))
2121 want[OFDPA_CTRL_DFLT_BRIDGING] = true;
2122 else if (ofdpa_port_is_ovsed(ofdpa_port))
2123 want[OFDPA_CTRL_DFLT_OVS] = true;
2124 else
2125 want[OFDPA_CTRL_LOCAL_ARP] = true;
2126 break;
2127 }
2128
2129 for (i = 0; i < OFDPA_CTRL_MAX; i++) {
2130 if (want[i] != ofdpa_port->ctrls[i]) {
2131 int ctrl_flags = flags |
2132 (want[i] ? 0 : OFDPA_OP_FLAG_REMOVE);
2133 err = ofdpa_port_ctrl(ofdpa_port, ctrl_flags,
2134 &ofdpa_ctrls[i]);
2135 if (err)
2136 goto err_port_ctrl;
2137 ofdpa_port->ctrls[i] = want[i];
2138 }
2139 }
2140
2141 err = ofdpa_port_fdb_flush(ofdpa_port, flags);
2142 if (err)
2143 goto err_fdb_flush;
2144
2145 err = ofdpa_port_fwding(ofdpa_port, flags);
2146 if (err)
2147 goto err_port_fwding;
2148
2149 return 0;
2150
2151 err_port_ctrl:
2152 err_fdb_flush:
2153 err_port_fwding:
2154 memcpy(ofdpa_port->ctrls, prev_ctrls, sizeof(prev_ctrls));
2155 ofdpa_port->stp_state = prev_state;
2156 return err;
2157 }
2158
2159 static int ofdpa_port_fwd_enable(struct ofdpa_port *ofdpa_port, int flags)
2160 {
2161 if (ofdpa_port_is_bridged(ofdpa_port))
2162 /* bridge STP will enable port */
2163 return 0;
2164
2165 /* port is not bridged, so simulate going to FORWARDING state */
2166 return ofdpa_port_stp_update(ofdpa_port, flags,
2167 BR_STATE_FORWARDING);
2168 }
2169
2170 static int ofdpa_port_fwd_disable(struct ofdpa_port *ofdpa_port, int flags)
2171 {
2172 if (ofdpa_port_is_bridged(ofdpa_port))
2173 /* bridge STP will disable port */
2174 return 0;
2175
2176 /* port is not bridged, so simulate going to DISABLED state */
2177 return ofdpa_port_stp_update(ofdpa_port, flags,
2178 BR_STATE_DISABLED);
2179 }
2180
2181 static int ofdpa_port_vlan_add(struct ofdpa_port *ofdpa_port,
2182 u16 vid, u16 flags)
2183 {
2184 int err;
2185
2186 /* XXX deal with flags for PVID and untagged */
2187
2188 err = ofdpa_port_vlan(ofdpa_port, 0, vid);
2189 if (err)
2190 return err;
2191
2192 err = ofdpa_port_router_mac(ofdpa_port, 0, htons(vid));
2193 if (err)
2194 ofdpa_port_vlan(ofdpa_port,
2195 OFDPA_OP_FLAG_REMOVE, vid);
2196
2197 return err;
2198 }
2199
2200 static int ofdpa_port_vlan_del(struct ofdpa_port *ofdpa_port,
2201 u16 vid, u16 flags)
2202 {
2203 int err;
2204
2205 err = ofdpa_port_router_mac(ofdpa_port, OFDPA_OP_FLAG_REMOVE,
2206 htons(vid));
2207 if (err)
2208 return err;
2209
2210 return ofdpa_port_vlan(ofdpa_port, OFDPA_OP_FLAG_REMOVE,
2211 vid);
2212 }
2213
2214 static struct ofdpa_internal_vlan_tbl_entry *
2215 ofdpa_internal_vlan_tbl_find(const struct ofdpa *ofdpa, int ifindex)
2216 {
2217 struct ofdpa_internal_vlan_tbl_entry *found;
2218
2219 hash_for_each_possible(ofdpa->internal_vlan_tbl, found,
2220 entry, ifindex) {
2221 if (found->ifindex == ifindex)
2222 return found;
2223 }
2224
2225 return NULL;
2226 }
2227
2228 static __be16 ofdpa_port_internal_vlan_id_get(struct ofdpa_port *ofdpa_port,
2229 int ifindex)
2230 {
2231 struct ofdpa *ofdpa = ofdpa_port->ofdpa;
2232 struct ofdpa_internal_vlan_tbl_entry *entry;
2233 struct ofdpa_internal_vlan_tbl_entry *found;
2234 unsigned long lock_flags;
2235 int i;
2236
2237 entry = kzalloc(sizeof(*entry), GFP_KERNEL);
2238 if (!entry)
2239 return 0;
2240
2241 entry->ifindex = ifindex;
2242
2243 spin_lock_irqsave(&ofdpa->internal_vlan_tbl_lock, lock_flags);
2244
2245 found = ofdpa_internal_vlan_tbl_find(ofdpa, ifindex);
2246 if (found) {
2247 kfree(entry);
2248 goto found;
2249 }
2250
2251 found = entry;
2252 hash_add(ofdpa->internal_vlan_tbl, &found->entry, found->ifindex);
2253
2254 for (i = 0; i < OFDPA_N_INTERNAL_VLANS; i++) {
2255 if (test_and_set_bit(i, ofdpa->internal_vlan_bitmap))
2256 continue;
2257 found->vlan_id = htons(OFDPA_INTERNAL_VLAN_ID_BASE + i);
2258 goto found;
2259 }
2260
2261 netdev_err(ofdpa_port->dev, "Out of internal VLAN IDs\n");
2262
2263 found:
2264 found->ref_count++;
2265 spin_unlock_irqrestore(&ofdpa->internal_vlan_tbl_lock, lock_flags);
2266
2267 return found->vlan_id;
2268 }
2269
2270 static int ofdpa_port_fib_ipv4(struct ofdpa_port *ofdpa_port, __be32 dst,
2271 int dst_len, struct fib_info *fi, u32 tb_id,
2272 int flags)
2273 {
2274 const struct fib_nh *nh;
2275 __be16 eth_type = htons(ETH_P_IP);
2276 __be32 dst_mask = inet_make_mask(dst_len);
2277 __be16 internal_vlan_id = ofdpa_port->internal_vlan_id;
2278 u32 priority = fi->fib_priority;
2279 enum rocker_of_dpa_table_id goto_tbl =
2280 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
2281 u32 group_id;
2282 bool nh_on_port;
2283 bool has_gw;
2284 u32 index;
2285 int err;
2286
2287 /* XXX support ECMP */
2288
2289 nh = fi->fib_nh;
2290 nh_on_port = (fi->fib_dev == ofdpa_port->dev);
2291 has_gw = !!nh->nh_gw;
2292
2293 if (has_gw && nh_on_port) {
2294 err = ofdpa_port_ipv4_nh(ofdpa_port, flags,
2295 nh->nh_gw, &index);
2296 if (err)
2297 return err;
2298
2299 group_id = ROCKER_GROUP_L3_UNICAST(index);
2300 } else {
2301 /* Send to CPU for processing */
2302 group_id = ROCKER_GROUP_L2_INTERFACE(internal_vlan_id, 0);
2303 }
2304
2305 err = ofdpa_flow_tbl_ucast4_routing(ofdpa_port, eth_type, dst,
2306 dst_mask, priority, goto_tbl,
2307 group_id, fi, flags);
2308 if (err)
2309 netdev_err(ofdpa_port->dev, "Error (%d) IPv4 route %pI4\n",
2310 err, &dst);
2311
2312 return err;
2313 }
2314
2315 static void
2316 ofdpa_port_internal_vlan_id_put(const struct ofdpa_port *ofdpa_port,
2317 int ifindex)
2318 {
2319 struct ofdpa *ofdpa = ofdpa_port->ofdpa;
2320 struct ofdpa_internal_vlan_tbl_entry *found;
2321 unsigned long lock_flags;
2322 unsigned long bit;
2323
2324 spin_lock_irqsave(&ofdpa->internal_vlan_tbl_lock, lock_flags);
2325
2326 found = ofdpa_internal_vlan_tbl_find(ofdpa, ifindex);
2327 if (!found) {
2328 netdev_err(ofdpa_port->dev,
2329 "ifindex (%d) not found in internal VLAN tbl\n",
2330 ifindex);
2331 goto not_found;
2332 }
2333
2334 if (--found->ref_count <= 0) {
2335 bit = ntohs(found->vlan_id) - OFDPA_INTERNAL_VLAN_ID_BASE;
2336 clear_bit(bit, ofdpa->internal_vlan_bitmap);
2337 hash_del(&found->entry);
2338 kfree(found);
2339 }
2340
2341 not_found:
2342 spin_unlock_irqrestore(&ofdpa->internal_vlan_tbl_lock, lock_flags);
2343 }
2344
2345 /**********************************
2346 * Rocker world ops implementation
2347 **********************************/
2348
2349 static int ofdpa_init(struct rocker *rocker)
2350 {
2351 struct ofdpa *ofdpa = rocker->wpriv;
2352
2353 ofdpa->rocker = rocker;
2354
2355 hash_init(ofdpa->flow_tbl);
2356 spin_lock_init(&ofdpa->flow_tbl_lock);
2357
2358 hash_init(ofdpa->group_tbl);
2359 spin_lock_init(&ofdpa->group_tbl_lock);
2360
2361 hash_init(ofdpa->fdb_tbl);
2362 spin_lock_init(&ofdpa->fdb_tbl_lock);
2363
2364 hash_init(ofdpa->internal_vlan_tbl);
2365 spin_lock_init(&ofdpa->internal_vlan_tbl_lock);
2366
2367 hash_init(ofdpa->neigh_tbl);
2368 spin_lock_init(&ofdpa->neigh_tbl_lock);
2369
2370 timer_setup(&ofdpa->fdb_cleanup_timer, ofdpa_fdb_cleanup, 0);
2371 mod_timer(&ofdpa->fdb_cleanup_timer, jiffies);
2372
2373 ofdpa->ageing_time = BR_DEFAULT_AGEING_TIME;
2374
2375 return 0;
2376 }
2377
2378 static void ofdpa_fini(struct rocker *rocker)
2379 {
2380 struct ofdpa *ofdpa = rocker->wpriv;
2381
2382 unsigned long flags;
2383 struct ofdpa_flow_tbl_entry *flow_entry;
2384 struct ofdpa_group_tbl_entry *group_entry;
2385 struct ofdpa_fdb_tbl_entry *fdb_entry;
2386 struct ofdpa_internal_vlan_tbl_entry *internal_vlan_entry;
2387 struct ofdpa_neigh_tbl_entry *neigh_entry;
2388 struct hlist_node *tmp;
2389 int bkt;
2390
2391 del_timer_sync(&ofdpa->fdb_cleanup_timer);
2392 flush_workqueue(rocker->rocker_owq);
2393
2394 spin_lock_irqsave(&ofdpa->flow_tbl_lock, flags);
2395 hash_for_each_safe(ofdpa->flow_tbl, bkt, tmp, flow_entry, entry)
2396 hash_del(&flow_entry->entry);
2397 spin_unlock_irqrestore(&ofdpa->flow_tbl_lock, flags);
2398
2399 spin_lock_irqsave(&ofdpa->group_tbl_lock, flags);
2400 hash_for_each_safe(ofdpa->group_tbl, bkt, tmp, group_entry, entry)
2401 hash_del(&group_entry->entry);
2402 spin_unlock_irqrestore(&ofdpa->group_tbl_lock, flags);
2403
2404 spin_lock_irqsave(&ofdpa->fdb_tbl_lock, flags);
2405 hash_for_each_safe(ofdpa->fdb_tbl, bkt, tmp, fdb_entry, entry)
2406 hash_del(&fdb_entry->entry);
2407 spin_unlock_irqrestore(&ofdpa->fdb_tbl_lock, flags);
2408
2409 spin_lock_irqsave(&ofdpa->internal_vlan_tbl_lock, flags);
2410 hash_for_each_safe(ofdpa->internal_vlan_tbl, bkt,
2411 tmp, internal_vlan_entry, entry)
2412 hash_del(&internal_vlan_entry->entry);
2413 spin_unlock_irqrestore(&ofdpa->internal_vlan_tbl_lock, flags);
2414
2415 spin_lock_irqsave(&ofdpa->neigh_tbl_lock, flags);
2416 hash_for_each_safe(ofdpa->neigh_tbl, bkt, tmp, neigh_entry, entry)
2417 hash_del(&neigh_entry->entry);
2418 spin_unlock_irqrestore(&ofdpa->neigh_tbl_lock, flags);
2419 }
2420
2421 static int ofdpa_port_pre_init(struct rocker_port *rocker_port)
2422 {
2423 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2424
2425 ofdpa_port->ofdpa = rocker_port->rocker->wpriv;
2426 ofdpa_port->rocker_port = rocker_port;
2427 ofdpa_port->dev = rocker_port->dev;
2428 ofdpa_port->pport = rocker_port->pport;
2429 ofdpa_port->brport_flags = BR_LEARNING;
2430 ofdpa_port->ageing_time = BR_DEFAULT_AGEING_TIME;
2431 return 0;
2432 }
2433
2434 static int ofdpa_port_init(struct rocker_port *rocker_port)
2435 {
2436 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2437 int err;
2438
2439 rocker_port_set_learning(rocker_port,
2440 !!(ofdpa_port->brport_flags & BR_LEARNING));
2441
2442 err = ofdpa_port_ig_tbl(ofdpa_port, 0);
2443 if (err) {
2444 netdev_err(ofdpa_port->dev, "install ig port table failed\n");
2445 return err;
2446 }
2447
2448 ofdpa_port->internal_vlan_id =
2449 ofdpa_port_internal_vlan_id_get(ofdpa_port,
2450 ofdpa_port->dev->ifindex);
2451
2452 err = ofdpa_port_vlan_add(ofdpa_port, OFDPA_UNTAGGED_VID, 0);
2453 if (err) {
2454 netdev_err(ofdpa_port->dev, "install untagged VLAN failed\n");
2455 goto err_untagged_vlan;
2456 }
2457 return 0;
2458
2459 err_untagged_vlan:
2460 ofdpa_port_ig_tbl(ofdpa_port, OFDPA_OP_FLAG_REMOVE);
2461 return err;
2462 }
2463
2464 static void ofdpa_port_fini(struct rocker_port *rocker_port)
2465 {
2466 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2467
2468 ofdpa_port_ig_tbl(ofdpa_port, OFDPA_OP_FLAG_REMOVE);
2469 }
2470
2471 static int ofdpa_port_open(struct rocker_port *rocker_port)
2472 {
2473 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2474
2475 return ofdpa_port_fwd_enable(ofdpa_port, 0);
2476 }
2477
2478 static void ofdpa_port_stop(struct rocker_port *rocker_port)
2479 {
2480 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2481
2482 ofdpa_port_fwd_disable(ofdpa_port, OFDPA_OP_FLAG_NOWAIT);
2483 }
2484
2485 static int ofdpa_port_attr_stp_state_set(struct rocker_port *rocker_port,
2486 u8 state)
2487 {
2488 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2489
2490 return ofdpa_port_stp_update(ofdpa_port, 0, state);
2491 }
2492
2493 static int ofdpa_port_attr_bridge_flags_set(struct rocker_port *rocker_port,
2494 unsigned long brport_flags,
2495 struct switchdev_trans *trans)
2496 {
2497 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2498 unsigned long orig_flags;
2499 int err = 0;
2500
2501 orig_flags = ofdpa_port->brport_flags;
2502 ofdpa_port->brport_flags = brport_flags;
2503 if ((orig_flags ^ ofdpa_port->brport_flags) & BR_LEARNING &&
2504 !switchdev_trans_ph_prepare(trans))
2505 err = rocker_port_set_learning(ofdpa_port->rocker_port,
2506 !!(ofdpa_port->brport_flags & BR_LEARNING));
2507
2508 if (switchdev_trans_ph_prepare(trans))
2509 ofdpa_port->brport_flags = orig_flags;
2510
2511 return err;
2512 }
2513
2514 static int
2515 ofdpa_port_attr_bridge_flags_support_get(const struct rocker_port *
2516 rocker_port,
2517 unsigned long *
2518 p_brport_flags_support)
2519 {
2520 *p_brport_flags_support = BR_LEARNING;
2521 return 0;
2522 }
2523
2524 static int
2525 ofdpa_port_attr_bridge_ageing_time_set(struct rocker_port *rocker_port,
2526 u32 ageing_time,
2527 struct switchdev_trans *trans)
2528 {
2529 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2530 struct ofdpa *ofdpa = ofdpa_port->ofdpa;
2531
2532 if (!switchdev_trans_ph_prepare(trans)) {
2533 ofdpa_port->ageing_time = clock_t_to_jiffies(ageing_time);
2534 if (ofdpa_port->ageing_time < ofdpa->ageing_time)
2535 ofdpa->ageing_time = ofdpa_port->ageing_time;
2536 mod_timer(&ofdpa_port->ofdpa->fdb_cleanup_timer, jiffies);
2537 }
2538
2539 return 0;
2540 }
2541
2542 static int ofdpa_port_obj_vlan_add(struct rocker_port *rocker_port,
2543 const struct switchdev_obj_port_vlan *vlan)
2544 {
2545 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2546 u16 vid;
2547 int err;
2548
2549 for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) {
2550 err = ofdpa_port_vlan_add(ofdpa_port, vid, vlan->flags);
2551 if (err)
2552 return err;
2553 }
2554
2555 return 0;
2556 }
2557
2558 static int ofdpa_port_obj_vlan_del(struct rocker_port *rocker_port,
2559 const struct switchdev_obj_port_vlan *vlan)
2560 {
2561 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2562 u16 vid;
2563 int err;
2564
2565 for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) {
2566 err = ofdpa_port_vlan_del(ofdpa_port, vid, vlan->flags);
2567 if (err)
2568 return err;
2569 }
2570
2571 return 0;
2572 }
2573
2574 static int ofdpa_port_obj_fdb_add(struct rocker_port *rocker_port,
2575 u16 vid, const unsigned char *addr)
2576 {
2577 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2578 __be16 vlan_id = ofdpa_port_vid_to_vlan(ofdpa_port, vid, NULL);
2579
2580 if (!ofdpa_port_is_bridged(ofdpa_port))
2581 return -EINVAL;
2582
2583 return ofdpa_port_fdb(ofdpa_port, addr, vlan_id, 0);
2584 }
2585
2586 static int ofdpa_port_obj_fdb_del(struct rocker_port *rocker_port,
2587 u16 vid, const unsigned char *addr)
2588 {
2589 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2590 __be16 vlan_id = ofdpa_port_vid_to_vlan(ofdpa_port, vid, NULL);
2591 int flags = OFDPA_OP_FLAG_REMOVE;
2592
2593 if (!ofdpa_port_is_bridged(ofdpa_port))
2594 return -EINVAL;
2595
2596 return ofdpa_port_fdb(ofdpa_port, addr, vlan_id, flags);
2597 }
2598
2599 static int ofdpa_port_bridge_join(struct ofdpa_port *ofdpa_port,
2600 struct net_device *bridge)
2601 {
2602 int err;
2603
2604 /* Port is joining bridge, so the internal VLAN for the
2605 * port is going to change to the bridge internal VLAN.
2606 * Let's remove untagged VLAN (vid=0) from port and
2607 * re-add once internal VLAN has changed.
2608 */
2609
2610 err = ofdpa_port_vlan_del(ofdpa_port, OFDPA_UNTAGGED_VID, 0);
2611 if (err)
2612 return err;
2613
2614 ofdpa_port_internal_vlan_id_put(ofdpa_port,
2615 ofdpa_port->dev->ifindex);
2616 ofdpa_port->internal_vlan_id =
2617 ofdpa_port_internal_vlan_id_get(ofdpa_port, bridge->ifindex);
2618
2619 ofdpa_port->bridge_dev = bridge;
2620
2621 return ofdpa_port_vlan_add(ofdpa_port, OFDPA_UNTAGGED_VID, 0);
2622 }
2623
2624 static int ofdpa_port_bridge_leave(struct ofdpa_port *ofdpa_port)
2625 {
2626 int err;
2627
2628 err = ofdpa_port_vlan_del(ofdpa_port, OFDPA_UNTAGGED_VID, 0);
2629 if (err)
2630 return err;
2631
2632 ofdpa_port_internal_vlan_id_put(ofdpa_port,
2633 ofdpa_port->bridge_dev->ifindex);
2634 ofdpa_port->internal_vlan_id =
2635 ofdpa_port_internal_vlan_id_get(ofdpa_port,
2636 ofdpa_port->dev->ifindex);
2637
2638 ofdpa_port->bridge_dev = NULL;
2639
2640 err = ofdpa_port_vlan_add(ofdpa_port, OFDPA_UNTAGGED_VID, 0);
2641 if (err)
2642 return err;
2643
2644 if (ofdpa_port->dev->flags & IFF_UP)
2645 err = ofdpa_port_fwd_enable(ofdpa_port, 0);
2646
2647 return err;
2648 }
2649
2650 static int ofdpa_port_ovs_changed(struct ofdpa_port *ofdpa_port,
2651 struct net_device *master)
2652 {
2653 int err;
2654
2655 ofdpa_port->bridge_dev = master;
2656
2657 err = ofdpa_port_fwd_disable(ofdpa_port, 0);
2658 if (err)
2659 return err;
2660 err = ofdpa_port_fwd_enable(ofdpa_port, 0);
2661
2662 return err;
2663 }
2664
2665 static int ofdpa_port_master_linked(struct rocker_port *rocker_port,
2666 struct net_device *master)
2667 {
2668 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2669 int err = 0;
2670
2671 if (netif_is_bridge_master(master))
2672 err = ofdpa_port_bridge_join(ofdpa_port, master);
2673 else if (netif_is_ovs_master(master))
2674 err = ofdpa_port_ovs_changed(ofdpa_port, master);
2675 return err;
2676 }
2677
2678 static int ofdpa_port_master_unlinked(struct rocker_port *rocker_port,
2679 struct net_device *master)
2680 {
2681 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2682 int err = 0;
2683
2684 if (ofdpa_port_is_bridged(ofdpa_port))
2685 err = ofdpa_port_bridge_leave(ofdpa_port);
2686 else if (ofdpa_port_is_ovsed(ofdpa_port))
2687 err = ofdpa_port_ovs_changed(ofdpa_port, NULL);
2688 return err;
2689 }
2690
2691 static int ofdpa_port_neigh_update(struct rocker_port *rocker_port,
2692 struct neighbour *n)
2693 {
2694 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2695 int flags = (n->nud_state & NUD_VALID ? 0 : OFDPA_OP_FLAG_REMOVE) |
2696 OFDPA_OP_FLAG_NOWAIT;
2697 __be32 ip_addr = *(__be32 *) n->primary_key;
2698
2699 return ofdpa_port_ipv4_neigh(ofdpa_port, flags, ip_addr, n->ha);
2700 }
2701
2702 static int ofdpa_port_neigh_destroy(struct rocker_port *rocker_port,
2703 struct neighbour *n)
2704 {
2705 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2706 int flags = OFDPA_OP_FLAG_REMOVE | OFDPA_OP_FLAG_NOWAIT;
2707 __be32 ip_addr = *(__be32 *) n->primary_key;
2708
2709 return ofdpa_port_ipv4_neigh(ofdpa_port, flags, ip_addr, n->ha);
2710 }
2711
2712 static int ofdpa_port_ev_mac_vlan_seen(struct rocker_port *rocker_port,
2713 const unsigned char *addr,
2714 __be16 vlan_id)
2715 {
2716 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2717 int flags = OFDPA_OP_FLAG_NOWAIT | OFDPA_OP_FLAG_LEARNED;
2718
2719 if (ofdpa_port->stp_state != BR_STATE_LEARNING &&
2720 ofdpa_port->stp_state != BR_STATE_FORWARDING)
2721 return 0;
2722
2723 return ofdpa_port_fdb(ofdpa_port, addr, vlan_id, flags);
2724 }
2725
2726 static struct ofdpa_port *ofdpa_port_dev_lower_find(struct net_device *dev,
2727 struct rocker *rocker)
2728 {
2729 struct rocker_port *rocker_port;
2730
2731 rocker_port = rocker_port_dev_lower_find(dev, rocker);
2732 return rocker_port ? rocker_port->wpriv : NULL;
2733 }
2734
2735 static int ofdpa_fib4_add(struct rocker *rocker,
2736 const struct fib_entry_notifier_info *fen_info)
2737 {
2738 struct ofdpa *ofdpa = rocker->wpriv;
2739 struct ofdpa_port *ofdpa_port;
2740 int err;
2741
2742 if (ofdpa->fib_aborted)
2743 return 0;
2744 ofdpa_port = ofdpa_port_dev_lower_find(fen_info->fi->fib_dev, rocker);
2745 if (!ofdpa_port)
2746 return 0;
2747 err = ofdpa_port_fib_ipv4(ofdpa_port, htonl(fen_info->dst),
2748 fen_info->dst_len, fen_info->fi,
2749 fen_info->tb_id, 0);
2750 if (err)
2751 return err;
2752 fen_info->fi->fib_nh->nh_flags |= RTNH_F_OFFLOAD;
2753 return 0;
2754 }
2755
2756 static int ofdpa_fib4_del(struct rocker *rocker,
2757 const struct fib_entry_notifier_info *fen_info)
2758 {
2759 struct ofdpa *ofdpa = rocker->wpriv;
2760 struct ofdpa_port *ofdpa_port;
2761
2762 if (ofdpa->fib_aborted)
2763 return 0;
2764 ofdpa_port = ofdpa_port_dev_lower_find(fen_info->fi->fib_dev, rocker);
2765 if (!ofdpa_port)
2766 return 0;
2767 fen_info->fi->fib_nh->nh_flags &= ~RTNH_F_OFFLOAD;
2768 return ofdpa_port_fib_ipv4(ofdpa_port, htonl(fen_info->dst),
2769 fen_info->dst_len, fen_info->fi,
2770 fen_info->tb_id, OFDPA_OP_FLAG_REMOVE);
2771 }
2772
2773 static void ofdpa_fib4_abort(struct rocker *rocker)
2774 {
2775 struct ofdpa *ofdpa = rocker->wpriv;
2776 struct ofdpa_port *ofdpa_port;
2777 struct ofdpa_flow_tbl_entry *flow_entry;
2778 struct hlist_node *tmp;
2779 unsigned long flags;
2780 int bkt;
2781
2782 if (ofdpa->fib_aborted)
2783 return;
2784
2785 spin_lock_irqsave(&ofdpa->flow_tbl_lock, flags);
2786 hash_for_each_safe(ofdpa->flow_tbl, bkt, tmp, flow_entry, entry) {
2787 if (flow_entry->key.tbl_id !=
2788 ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING)
2789 continue;
2790 ofdpa_port = ofdpa_port_dev_lower_find(flow_entry->fi->fib_dev,
2791 rocker);
2792 if (!ofdpa_port)
2793 continue;
2794 flow_entry->fi->fib_nh->nh_flags &= ~RTNH_F_OFFLOAD;
2795 ofdpa_flow_tbl_del(ofdpa_port, OFDPA_OP_FLAG_REMOVE,
2796 flow_entry);
2797 }
2798 spin_unlock_irqrestore(&ofdpa->flow_tbl_lock, flags);
2799 ofdpa->fib_aborted = true;
2800 }
2801
2802 struct rocker_world_ops rocker_ofdpa_ops = {
2803 .kind = "ofdpa",
2804 .priv_size = sizeof(struct ofdpa),
2805 .port_priv_size = sizeof(struct ofdpa_port),
2806 .mode = ROCKER_PORT_MODE_OF_DPA,
2807 .init = ofdpa_init,
2808 .fini = ofdpa_fini,
2809 .port_pre_init = ofdpa_port_pre_init,
2810 .port_init = ofdpa_port_init,
2811 .port_fini = ofdpa_port_fini,
2812 .port_open = ofdpa_port_open,
2813 .port_stop = ofdpa_port_stop,
2814 .port_attr_stp_state_set = ofdpa_port_attr_stp_state_set,
2815 .port_attr_bridge_flags_set = ofdpa_port_attr_bridge_flags_set,
2816 .port_attr_bridge_flags_support_get = ofdpa_port_attr_bridge_flags_support_get,
2817 .port_attr_bridge_ageing_time_set = ofdpa_port_attr_bridge_ageing_time_set,
2818 .port_obj_vlan_add = ofdpa_port_obj_vlan_add,
2819 .port_obj_vlan_del = ofdpa_port_obj_vlan_del,
2820 .port_obj_fdb_add = ofdpa_port_obj_fdb_add,
2821 .port_obj_fdb_del = ofdpa_port_obj_fdb_del,
2822 .port_master_linked = ofdpa_port_master_linked,
2823 .port_master_unlinked = ofdpa_port_master_unlinked,
2824 .port_neigh_update = ofdpa_port_neigh_update,
2825 .port_neigh_destroy = ofdpa_port_neigh_destroy,
2826 .port_ev_mac_vlan_seen = ofdpa_port_ev_mac_vlan_seen,
2827 .fib4_add = ofdpa_fib4_add,
2828 .fib4_del = ofdpa_fib4_del,
2829 .fib4_abort = ofdpa_fib4_abort,
2830 };
Linux with added FPC-III support