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Merge tag 'mmc-v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
[mirror_ubuntu-bionic-kernel.git] / drivers / net / ethernet / rocker / rocker_ofdpa.c
CommitLineData
e420114e
JP		 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>
3fbcdbf3
JP		 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
e420114e 27#include "rocker.h"
3fbcdbf3
JP		 28#include "rocker_tlv.h"
29
30struct 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
95struct 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 */
936bd486 102 struct fib_info *fi;
3fbcdbf3
JP		 103};
104
105struct 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
131struct 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
143struct ofdpa_internal_vlan_tbl_entry {
144 struct hlist_node entry;
145 int ifindex; /* key */
146 u32 ref_count;
147 __be16 vlan_id;
148};
149
150struct 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
160enum {
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
e420114e
JP		 175
176struct ofdpa {
3fbcdbf3
JP		 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;
3a8befcd 192 unsigned long ageing_time;
936bd486 193 bool fib_aborted;
e420114e
JP		 194};
195
196struct ofdpa_port {
3fbcdbf3
JP		 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];
e420114e
JP		 208};
209
3fbcdbf3
JP		 210static const u8 zero_mac[ETH_ALEN] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
211static const u8 ff_mac[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
212static const u8 ll_mac[ETH_ALEN] = { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x00 };
213static const u8 ll_mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0 };
214static const u8 mcast_mac[ETH_ALEN] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 };
215static const u8 ipv4_mcast[ETH_ALEN] = { 0x01, 0x00, 0x5e, 0x00, 0x00, 0x00 };
216static const u8 ipv4_mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0x80, 0x00, 0x00 };
217static const u8 ipv6_mcast[ETH_ALEN] = { 0x33, 0x33, 0x00, 0x00, 0x00, 0x00 };
218static 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
224enum {
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
241static 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
250static __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
267static 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
276static 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
283static bool ofdpa_port_is_bridged(const struct ofdpa_port *ofdpa_port)
284{
285 return ofdpa_port_is_slave(ofdpa_port, "bridge");
286}
287
288static 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
298static bool ofdpa_flags_nowait(int flags)
299{
300 return flags & OFDPA_OP_FLAG_NOWAIT;
301}
302
3fbcdbf3
JP		 303/*************************************************************
304 * Flow, group, FDB, internal VLAN and neigh command prepares
305 *************************************************************/
306
307static int
308ofdpa_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
324static int
325ofdpa_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
348static int
349ofdpa_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
384static int
385ofdpa_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
407static int
408ofdpa_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
441static int
442ofdpa_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
508static 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
565static 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
585static int
586ofdpa_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
599static int
600ofdpa_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
622static int
623ofdpa_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
648static int
649ofdpa_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
674static 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
719static 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
743static struct ofdpa_flow_tbl_entry *
744ofdpa_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
759static int ofdpa_flow_tbl_add(struct ofdpa_port *ofdpa_port,
00fc0c51 760 int flags, struct ofdpa_flow_tbl_entry *match)
3fbcdbf3
JP		 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;
00fc0c51
AS		 775 hash_del(&found->entry);
776 kfree(found);
3fbcdbf3
JP		 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
00fc0c51 785 hash_add(ofdpa->flow_tbl, &found->entry, found->key_crc32);
3fbcdbf3
JP		 786 spin_unlock_irqrestore(&ofdpa->flow_tbl_lock, lock_flags);
787
00fc0c51
AS		 788 return rocker_cmd_exec(ofdpa_port->rocker_port,
789 ofdpa_flags_nowait(flags),
790 ofdpa_cmd_flow_tbl_add,
791 found, NULL, NULL);
3fbcdbf3
JP		 792 return 0;
793}
794
795static int ofdpa_flow_tbl_del(struct ofdpa_port *ofdpa_port,
00fc0c51 796 int flags, struct ofdpa_flow_tbl_entry *match)
3fbcdbf3
JP		 797{
798 struct ofdpa *ofdpa = ofdpa_port->ofdpa;
799 struct ofdpa_flow_tbl_entry *found;
800 size_t key_len = match->key_len ? match->key_len : sizeof(found->key);
801 unsigned long lock_flags;
802 int err = 0;
803
804 match->key_crc32 = crc32(~0, &match->key, key_len);
805
806 spin_lock_irqsave(&ofdpa->flow_tbl_lock, lock_flags);
807
808 found = ofdpa_flow_tbl_find(ofdpa, match);
809
810 if (found) {
00fc0c51 811 hash_del(&found->entry);
3fbcdbf3
JP		 812 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_DEL;
813 }
814
815 spin_unlock_irqrestore(&ofdpa->flow_tbl_lock, lock_flags);
816
00fc0c51 817 kfree(match);
3fbcdbf3
JP		 818
819 if (found) {
00fc0c51
AS		 820 err = rocker_cmd_exec(ofdpa_port->rocker_port,
821 ofdpa_flags_nowait(flags),
822 ofdpa_cmd_flow_tbl_del,
823 found, NULL, NULL);
824 kfree(found);
3fbcdbf3
JP		 825 }
826
827 return err;
828}
829
00fc0c51 830static int ofdpa_flow_tbl_do(struct ofdpa_port *ofdpa_port, int flags,
3fbcdbf3
JP		 831 struct ofdpa_flow_tbl_entry *entry)
832{
833 if (flags & OFDPA_OP_FLAG_REMOVE)
00fc0c51 834 return ofdpa_flow_tbl_del(ofdpa_port, flags, entry);
3fbcdbf3 835 else
00fc0c51 836 return ofdpa_flow_tbl_add(ofdpa_port, flags, entry);
3fbcdbf3
JP		 837}
838
00fc0c51 839static int ofdpa_flow_tbl_ig_port(struct ofdpa_port *ofdpa_port, int flags,
3fbcdbf3
JP		 840 u32 in_pport, u32 in_pport_mask,
841 enum rocker_of_dpa_table_id goto_tbl)
842{
843 struct ofdpa_flow_tbl_entry *entry;
844
00fc0c51 845 entry = kzalloc(sizeof(*entry), GFP_KERNEL);
3fbcdbf3
JP		 846 if (!entry)
847 return -ENOMEM;
848
849 entry->key.priority = OFDPA_PRIORITY_IG_PORT;
850 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT;
851 entry->key.ig_port.in_pport = in_pport;
852 entry->key.ig_port.in_pport_mask = in_pport_mask;
853 entry->key.ig_port.goto_tbl = goto_tbl;
854
00fc0c51 855 return ofdpa_flow_tbl_do(ofdpa_port, flags, entry);
3fbcdbf3
JP		 856}
857
858static int ofdpa_flow_tbl_vlan(struct ofdpa_port *ofdpa_port,
00fc0c51 859 int flags,
3fbcdbf3
JP		 860 u32 in_pport, __be16 vlan_id,
861 __be16 vlan_id_mask,
862 enum rocker_of_dpa_table_id goto_tbl,
863 bool untagged, __be16 new_vlan_id)
864{
865 struct ofdpa_flow_tbl_entry *entry;
866
00fc0c51 867 entry = kzalloc(sizeof(*entry), GFP_KERNEL);
3fbcdbf3
JP		 868 if (!entry)
869 return -ENOMEM;
870
871 entry->key.priority = OFDPA_PRIORITY_VLAN;
872 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_VLAN;
873 entry->key.vlan.in_pport = in_pport;
874 entry->key.vlan.vlan_id = vlan_id;
875 entry->key.vlan.vlan_id_mask = vlan_id_mask;
876 entry->key.vlan.goto_tbl = goto_tbl;
877
878 entry->key.vlan.untagged = untagged;
879 entry->key.vlan.new_vlan_id = new_vlan_id;
880
00fc0c51 881 return ofdpa_flow_tbl_do(ofdpa_port, flags, entry);
3fbcdbf3
JP		 882}
883
884static int ofdpa_flow_tbl_term_mac(struct ofdpa_port *ofdpa_port,
3fbcdbf3
JP		 885 u32 in_pport, u32 in_pport_mask,
886 __be16 eth_type, const u8 *eth_dst,
887 const u8 *eth_dst_mask, __be16 vlan_id,
888 __be16 vlan_id_mask, bool copy_to_cpu,
889 int flags)
890{
891 struct ofdpa_flow_tbl_entry *entry;
892
00fc0c51 893 entry = kzalloc(sizeof(*entry), GFP_KERNEL);
3fbcdbf3
JP		 894 if (!entry)
895 return -ENOMEM;
896
897 if (is_multicast_ether_addr(eth_dst)) {
898 entry->key.priority = OFDPA_PRIORITY_TERM_MAC_MCAST;
899 entry->key.term_mac.goto_tbl =
900 ROCKER_OF_DPA_TABLE_ID_MULTICAST_ROUTING;
901 } else {
902 entry->key.priority = OFDPA_PRIORITY_TERM_MAC_UCAST;
903 entry->key.term_mac.goto_tbl =
904 ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING;
905 }
906
907 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC;
908 entry->key.term_mac.in_pport = in_pport;
909 entry->key.term_mac.in_pport_mask = in_pport_mask;
910 entry->key.term_mac.eth_type = eth_type;
911 ether_addr_copy(entry->key.term_mac.eth_dst, eth_dst);
912 ether_addr_copy(entry->key.term_mac.eth_dst_mask, eth_dst_mask);
913 entry->key.term_mac.vlan_id = vlan_id;
914 entry->key.term_mac.vlan_id_mask = vlan_id_mask;
915 entry->key.term_mac.copy_to_cpu = copy_to_cpu;
916
00fc0c51 917 return ofdpa_flow_tbl_do(ofdpa_port, flags, entry);
3fbcdbf3
JP		 918}
919
920static int ofdpa_flow_tbl_bridge(struct ofdpa_port *ofdpa_port,
00fc0c51
AS		 921 int flags, const u8 *eth_dst,
922 const u8 *eth_dst_mask, __be16 vlan_id,
923 u32 tunnel_id,
3fbcdbf3
JP		 924 enum rocker_of_dpa_table_id goto_tbl,
925 u32 group_id, bool copy_to_cpu)
926{
927 struct ofdpa_flow_tbl_entry *entry;
928 u32 priority;
929 bool vlan_bridging = !!vlan_id;
930 bool dflt = !eth_dst || (eth_dst && eth_dst_mask);
931 bool wild = false;
932
00fc0c51 933 entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
3fbcdbf3
JP		 934 if (!entry)
935 return -ENOMEM;
936
937 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_BRIDGING;
938
939 if (eth_dst) {
940 entry->key.bridge.has_eth_dst = 1;
941 ether_addr_copy(entry->key.bridge.eth_dst, eth_dst);
942 }
943 if (eth_dst_mask) {
944 entry->key.bridge.has_eth_dst_mask = 1;
945 ether_addr_copy(entry->key.bridge.eth_dst_mask, eth_dst_mask);
946 if (!ether_addr_equal(eth_dst_mask, ff_mac))
947 wild = true;
948 }
949
950 priority = OFDPA_PRIORITY_UNKNOWN;
951 if (vlan_bridging && dflt && wild)
952 priority = OFDPA_PRIORITY_BRIDGING_VLAN_DFLT_WILD;
953 else if (vlan_bridging && dflt && !wild)
954 priority = OFDPA_PRIORITY_BRIDGING_VLAN_DFLT_EXACT;
955 else if (vlan_bridging && !dflt)
956 priority = OFDPA_PRIORITY_BRIDGING_VLAN;
957 else if (!vlan_bridging && dflt && wild)
958 priority = OFDPA_PRIORITY_BRIDGING_TENANT_DFLT_WILD;
959 else if (!vlan_bridging && dflt && !wild)
960 priority = OFDPA_PRIORITY_BRIDGING_TENANT_DFLT_EXACT;
961 else if (!vlan_bridging && !dflt)
962 priority = OFDPA_PRIORITY_BRIDGING_TENANT;
963
964 entry->key.priority = priority;
965 entry->key.bridge.vlan_id = vlan_id;
966 entry->key.bridge.tunnel_id = tunnel_id;
967 entry->key.bridge.goto_tbl = goto_tbl;
968 entry->key.bridge.group_id = group_id;
969 entry->key.bridge.copy_to_cpu = copy_to_cpu;
970
00fc0c51 971 return ofdpa_flow_tbl_do(ofdpa_port, flags, entry);
3fbcdbf3
JP		 972}
973
974static int ofdpa_flow_tbl_ucast4_routing(struct ofdpa_port *ofdpa_port,
3fbcdbf3
JP		 975 __be16 eth_type, __be32 dst,
976 __be32 dst_mask, u32 priority,
977 enum rocker_of_dpa_table_id goto_tbl,
936bd486
JP		 978 u32 group_id, struct fib_info *fi,
979 int flags)
3fbcdbf3
JP		 980{
981 struct ofdpa_flow_tbl_entry *entry;
982
00fc0c51 983 entry = kzalloc(sizeof(*entry), GFP_KERNEL);
3fbcdbf3
JP		 984 if (!entry)
985 return -ENOMEM;
986
987 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING;
988 entry->key.priority = priority;
989 entry->key.ucast_routing.eth_type = eth_type;
990 entry->key.ucast_routing.dst4 = dst;
991 entry->key.ucast_routing.dst4_mask = dst_mask;
992 entry->key.ucast_routing.goto_tbl = goto_tbl;
993 entry->key.ucast_routing.group_id = group_id;
994 entry->key_len = offsetof(struct ofdpa_flow_tbl_key,
995 ucast_routing.group_id);
936bd486 996 entry->fi = fi;
3fbcdbf3 997
00fc0c51 998 return ofdpa_flow_tbl_do(ofdpa_port, flags, entry);
3fbcdbf3
JP		 999}
1000
00fc0c51 1001static int ofdpa_flow_tbl_acl(struct ofdpa_port *ofdpa_port, int flags,
3fbcdbf3
JP		 1002 u32 in_pport, u32 in_pport_mask,
1003 const u8 *eth_src, const u8 *eth_src_mask,
1004 const u8 *eth_dst, const u8 *eth_dst_mask,
1005 __be16 eth_type, __be16 vlan_id,
1006 __be16 vlan_id_mask, u8 ip_proto,
1007 u8 ip_proto_mask, u8 ip_tos, u8 ip_tos_mask,
1008 u32 group_id)
1009{
1010 u32 priority;
1011 struct ofdpa_flow_tbl_entry *entry;
1012
00fc0c51 1013 entry = kzalloc(sizeof(*entry), GFP_KERNEL);
3fbcdbf3
JP		 1014 if (!entry)
1015 return -ENOMEM;
1016
1017 priority = OFDPA_PRIORITY_ACL_NORMAL;
1018 if (eth_dst && eth_dst_mask) {
1019 if (ether_addr_equal(eth_dst_mask, mcast_mac))
1020 priority = OFDPA_PRIORITY_ACL_DFLT;
1021 else if (is_link_local_ether_addr(eth_dst))
1022 priority = OFDPA_PRIORITY_ACL_CTRL;
1023 }
1024
1025 entry->key.priority = priority;
1026 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
1027 entry->key.acl.in_pport = in_pport;
1028 entry->key.acl.in_pport_mask = in_pport_mask;
1029
1030 if (eth_src)
1031 ether_addr_copy(entry->key.acl.eth_src, eth_src);
1032 if (eth_src_mask)
1033 ether_addr_copy(entry->key.acl.eth_src_mask, eth_src_mask);
1034 if (eth_dst)
1035 ether_addr_copy(entry->key.acl.eth_dst, eth_dst);
1036 if (eth_dst_mask)
1037 ether_addr_copy(entry->key.acl.eth_dst_mask, eth_dst_mask);
1038
1039 entry->key.acl.eth_type = eth_type;
1040 entry->key.acl.vlan_id = vlan_id;
1041 entry->key.acl.vlan_id_mask = vlan_id_mask;
1042 entry->key.acl.ip_proto = ip_proto;
1043 entry->key.acl.ip_proto_mask = ip_proto_mask;
1044 entry->key.acl.ip_tos = ip_tos;
1045 entry->key.acl.ip_tos_mask = ip_tos_mask;
1046 entry->key.acl.group_id = group_id;
1047
00fc0c51 1048 return ofdpa_flow_tbl_do(ofdpa_port, flags, entry);
3fbcdbf3
JP		 1049}
1050
1051static struct ofdpa_group_tbl_entry *
1052ofdpa_group_tbl_find(const struct ofdpa *ofdpa,
1053 const struct ofdpa_group_tbl_entry *match)
1054{
1055 struct ofdpa_group_tbl_entry *found;
1056
1057 hash_for_each_possible(ofdpa->group_tbl, found,
1058 entry, match->group_id) {
1059 if (found->group_id == match->group_id)
1060 return found;
1061 }
1062
1063 return NULL;
1064}
1065
00fc0c51 1066static void ofdpa_group_tbl_entry_free(struct ofdpa_group_tbl_entry *entry)
3fbcdbf3
JP		 1067{
1068 switch (ROCKER_GROUP_TYPE_GET(entry->group_id)) {
1069 case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD:
1070 case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST:
00fc0c51 1071 kfree(entry->group_ids);
3fbcdbf3
JP		 1072 break;
1073 default:
1074 break;
1075 }
00fc0c51 1076 kfree(entry);
3fbcdbf3
JP		 1077}
1078
00fc0c51 1079static int ofdpa_group_tbl_add(struct ofdpa_port *ofdpa_port, int flags,
3fbcdbf3
JP		 1080 struct ofdpa_group_tbl_entry *match)
1081{
1082 struct ofdpa *ofdpa = ofdpa_port->ofdpa;
1083 struct ofdpa_group_tbl_entry *found;
1084 unsigned long lock_flags;
1085
1086 spin_lock_irqsave(&ofdpa->group_tbl_lock, lock_flags);
1087
1088 found = ofdpa_group_tbl_find(ofdpa, match);
1089
1090 if (found) {
00fc0c51
AS		 1091 hash_del(&found->entry);
1092 ofdpa_group_tbl_entry_free(found);
3fbcdbf3
JP		 1093 found = match;
1094 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_MOD;
1095 } else {
1096 found = match;
1097 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_ADD;
1098 }
1099
00fc0c51 1100 hash_add(ofdpa->group_tbl, &found->entry, found->group_id);
3fbcdbf3
JP		 1101
1102 spin_unlock_irqrestore(&ofdpa->group_tbl_lock, lock_flags);
1103
00fc0c51
AS		 1104 return rocker_cmd_exec(ofdpa_port->rocker_port,
1105 ofdpa_flags_nowait(flags),
1106 ofdpa_cmd_group_tbl_add,
1107 found, NULL, NULL);
3fbcdbf3
JP		 1108}
1109
00fc0c51 1110static int ofdpa_group_tbl_del(struct ofdpa_port *ofdpa_port, int flags,
3fbcdbf3
JP		 1111 struct ofdpa_group_tbl_entry *match)
1112{
1113 struct ofdpa *ofdpa = ofdpa_port->ofdpa;
1114 struct ofdpa_group_tbl_entry *found;
1115 unsigned long lock_flags;
1116 int err = 0;
1117
1118 spin_lock_irqsave(&ofdpa->group_tbl_lock, lock_flags);
1119
1120 found = ofdpa_group_tbl_find(ofdpa, match);
1121
1122 if (found) {
00fc0c51 1123 hash_del(&found->entry);
3fbcdbf3
JP		 1124 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_DEL;
1125 }
1126
1127 spin_unlock_irqrestore(&ofdpa->group_tbl_lock, lock_flags);
1128
00fc0c51 1129 ofdpa_group_tbl_entry_free(match);
3fbcdbf3
JP		 1130
1131 if (found) {
00fc0c51
AS		 1132 err = rocker_cmd_exec(ofdpa_port->rocker_port,
1133 ofdpa_flags_nowait(flags),
1134 ofdpa_cmd_group_tbl_del,
1135 found, NULL, NULL);
1136 ofdpa_group_tbl_entry_free(found);
3fbcdbf3
JP		 1137 }
1138
1139 return err;
1140}
1141
00fc0c51 1142static int ofdpa_group_tbl_do(struct ofdpa_port *ofdpa_port, int flags,
3fbcdbf3
JP		 1143 struct ofdpa_group_tbl_entry *entry)
1144{
1145 if (flags & OFDPA_OP_FLAG_REMOVE)
00fc0c51 1146 return ofdpa_group_tbl_del(ofdpa_port, flags, entry);
3fbcdbf3 1147 else
00fc0c51 1148 return ofdpa_group_tbl_add(ofdpa_port, flags, entry);
3fbcdbf3
JP		 1149}
1150
1151static int ofdpa_group_l2_interface(struct ofdpa_port *ofdpa_port,
00fc0c51
AS		 1152 int flags, __be16 vlan_id,
1153 u32 out_pport, int pop_vlan)
3fbcdbf3
JP		 1154{
1155 struct ofdpa_group_tbl_entry *entry;
1156
00fc0c51 1157 entry = kzalloc(sizeof(*entry), GFP_KERNEL);
3fbcdbf3
JP		 1158 if (!entry)
1159 return -ENOMEM;
1160
1161 entry->group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport);
1162 entry->l2_interface.pop_vlan = pop_vlan;
1163
00fc0c51 1164 return ofdpa_group_tbl_do(ofdpa_port, flags, entry);
3fbcdbf3
JP		 1165}
1166
1167static int ofdpa_group_l2_fan_out(struct ofdpa_port *ofdpa_port,
3fbcdbf3
JP		 1168 int flags, u8 group_count,
1169 const u32 *group_ids, u32 group_id)
1170{
1171 struct ofdpa_group_tbl_entry *entry;
1172
00fc0c51 1173 entry = kzalloc(sizeof(*entry), GFP_KERNEL);
3fbcdbf3
JP		 1174 if (!entry)
1175 return -ENOMEM;
1176
1177 entry->group_id = group_id;
1178 entry->group_count = group_count;
1179
b1357cfb 1180 entry->group_ids = kcalloc(group_count, sizeof(u32), GFP_KERNEL);
3fbcdbf3 1181 if (!entry->group_ids) {
00fc0c51 1182 kfree(entry);
3fbcdbf3
JP		 1183 return -ENOMEM;
1184 }
1185 memcpy(entry->group_ids, group_ids, group_count * sizeof(u32));
1186
00fc0c51 1187 return ofdpa_group_tbl_do(ofdpa_port, flags, entry);
3fbcdbf3
JP		 1188}
1189
1190static int ofdpa_group_l2_flood(struct ofdpa_port *ofdpa_port,
00fc0c51
AS		 1191 int flags, __be16 vlan_id,
1192 u8 group_count, const u32 *group_ids,
1193 u32 group_id)
3fbcdbf3 1194{
00fc0c51 1195 return ofdpa_group_l2_fan_out(ofdpa_port, flags,
3fbcdbf3
JP		 1196 group_count, group_ids,
1197 group_id);
1198}
1199
00fc0c51 1200static int ofdpa_group_l3_unicast(struct ofdpa_port *ofdpa_port, int flags,
3fbcdbf3
JP		 1201 u32 index, const u8 *src_mac, const u8 *dst_mac,
1202 __be16 vlan_id, bool ttl_check, u32 pport)
1203{
1204 struct ofdpa_group_tbl_entry *entry;
1205
00fc0c51 1206 entry = kzalloc(sizeof(*entry), GFP_KERNEL);
3fbcdbf3
JP		 1207 if (!entry)
1208 return -ENOMEM;
1209
1210 entry->group_id = ROCKER_GROUP_L3_UNICAST(index);
1211 if (src_mac)
1212 ether_addr_copy(entry->l3_unicast.eth_src, src_mac);
1213 if (dst_mac)
1214 ether_addr_copy(entry->l3_unicast.eth_dst, dst_mac);
1215 entry->l3_unicast.vlan_id = vlan_id;
1216 entry->l3_unicast.ttl_check = ttl_check;
1217 entry->l3_unicast.group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, pport);
1218
00fc0c51 1219 return ofdpa_group_tbl_do(ofdpa_port, flags, entry);
3fbcdbf3
JP		 1220}
1221
1222static struct ofdpa_neigh_tbl_entry *
1223ofdpa_neigh_tbl_find(const struct ofdpa *ofdpa, __be32 ip_addr)
1224{
1225 struct ofdpa_neigh_tbl_entry *found;
1226
1227 hash_for_each_possible(ofdpa->neigh_tbl, found,
1228 entry, be32_to_cpu(ip_addr))
1229 if (found->ip_addr == ip_addr)
1230 return found;
1231
1232 return NULL;
1233}
1234
1235static void ofdpa_neigh_add(struct ofdpa *ofdpa,
3fbcdbf3
JP		 1236 struct ofdpa_neigh_tbl_entry *entry)
1237{
00fc0c51 1238 entry->index = ofdpa->neigh_tbl_next_index++;
3fbcdbf3
JP		 1239 entry->ref_count++;
1240 hash_add(ofdpa->neigh_tbl, &entry->entry,
1241 be32_to_cpu(entry->ip_addr));
1242}
1243
00fc0c51 1244static void ofdpa_neigh_del(struct ofdpa_neigh_tbl_entry *entry)
3fbcdbf3 1245{
3fbcdbf3
JP		 1246 if (--entry->ref_count == 0) {
1247 hash_del(&entry->entry);
00fc0c51 1248 kfree(entry);
3fbcdbf3
JP		 1249 }
1250}
1251
1252static void ofdpa_neigh_update(struct ofdpa_neigh_tbl_entry *entry,
3fbcdbf3
JP		 1253 const u8 *eth_dst, bool ttl_check)
1254{
1255 if (eth_dst) {
1256 ether_addr_copy(entry->eth_dst, eth_dst);
1257 entry->ttl_check = ttl_check;
00fc0c51 1258 } else {
3fbcdbf3
JP		 1259 entry->ref_count++;
1260 }
1261}
1262
1263static int ofdpa_port_ipv4_neigh(struct ofdpa_port *ofdpa_port,
3fbcdbf3
JP		 1264 int flags, __be32 ip_addr, const u8 *eth_dst)
1265{
1266 struct ofdpa *ofdpa = ofdpa_port->ofdpa;
1267 struct ofdpa_neigh_tbl_entry *entry;
1268 struct ofdpa_neigh_tbl_entry *found;
1269 unsigned long lock_flags;
1270 __be16 eth_type = htons(ETH_P_IP);
1271 enum rocker_of_dpa_table_id goto_tbl =
1272 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
1273 u32 group_id;
1274 u32 priority = 0;
1275 bool adding = !(flags & OFDPA_OP_FLAG_REMOVE);
1276 bool updating;
1277 bool removing;
1278 int err = 0;
1279
00fc0c51 1280 entry = kzalloc(sizeof(*entry), GFP_KERNEL);
3fbcdbf3
JP		 1281 if (!entry)
1282 return -ENOMEM;
1283
1284 spin_lock_irqsave(&ofdpa->neigh_tbl_lock, lock_flags);
1285
1286 found = ofdpa_neigh_tbl_find(ofdpa, ip_addr);
1287
1288 updating = found && adding;
1289 removing = found && !adding;
1290 adding = !found && adding;
1291
1292 if (adding) {
1293 entry->ip_addr = ip_addr;
1294 entry->dev = ofdpa_port->dev;
1295 ether_addr_copy(entry->eth_dst, eth_dst);
1296 entry->ttl_check = true;
00fc0c51 1297 ofdpa_neigh_add(ofdpa, entry);
3fbcdbf3
JP		 1298 } else if (removing) {
1299 memcpy(entry, found, sizeof(*entry));
00fc0c51 1300 ofdpa_neigh_del(found);
3fbcdbf3 1301 } else if (updating) {
00fc0c51 1302 ofdpa_neigh_update(found, eth_dst, true);
3fbcdbf3
JP		 1303 memcpy(entry, found, sizeof(*entry));
1304 } else {
1305 err = -ENOENT;
1306 }
1307
1308 spin_unlock_irqrestore(&ofdpa->neigh_tbl_lock, lock_flags);
1309
1310 if (err)
1311 goto err_out;
1312
1313 /* For each active neighbor, we have an L3 unicast group and
1314 * a /32 route to the neighbor, which uses the L3 unicast
1315 * group. The L3 unicast group can also be referred to by
1316 * other routes' nexthops.
1317 */
1318
00fc0c51 1319 err = ofdpa_group_l3_unicast(ofdpa_port, flags,
3fbcdbf3
JP		 1320 entry->index,
1321 ofdpa_port->dev->dev_addr,
1322 entry->eth_dst,
1323 ofdpa_port->internal_vlan_id,
1324 entry->ttl_check,
1325 ofdpa_port->pport);
1326 if (err) {
1327 netdev_err(ofdpa_port->dev, "Error (%d) L3 unicast group index %d\n",
1328 err, entry->index);
1329 goto err_out;
1330 }
1331
1332 if (adding || removing) {
1333 group_id = ROCKER_GROUP_L3_UNICAST(entry->index);
00fc0c51 1334 err = ofdpa_flow_tbl_ucast4_routing(ofdpa_port,
3fbcdbf3
JP		 1335 eth_type, ip_addr,
1336 inet_make_mask(32),
1337 priority, goto_tbl,
936bd486 1338 group_id, NULL, flags);
3fbcdbf3
JP		 1339
1340 if (err)
1341 netdev_err(ofdpa_port->dev, "Error (%d) /32 unicast route %pI4 group 0x%08x\n",
1342 err, &entry->ip_addr, group_id);
1343 }
1344
1345err_out:
1346 if (!adding)
00fc0c51 1347 kfree(entry);
3fbcdbf3
JP		 1348
1349 return err;
1350}
1351
1352static int ofdpa_port_ipv4_resolve(struct ofdpa_port *ofdpa_port,
3fbcdbf3
JP		 1353 __be32 ip_addr)
1354{
1355 struct net_device *dev = ofdpa_port->dev;
1356 struct neighbour *n = __ipv4_neigh_lookup(dev, (__force u32)ip_addr);
1357 int err = 0;
1358
1359 if (!n) {
1360 n = neigh_create(&arp_tbl, &ip_addr, dev);
1361 if (IS_ERR(n))
f73e0c24 1362 return PTR_ERR(n);
3fbcdbf3
JP		 1363 }
1364
1365 /* If the neigh is already resolved, then go ahead and
1366 * install the entry, otherwise start the ARP process to
1367 * resolve the neigh.
1368 */
1369
1370 if (n->nud_state & NUD_VALID)
00fc0c51 1371 err = ofdpa_port_ipv4_neigh(ofdpa_port, 0,
3fbcdbf3
JP		 1372 ip_addr, n->ha);
1373 else
1374 neigh_event_send(n, NULL);
1375
1376 neigh_release(n);
1377 return err;
1378}
1379
1380static int ofdpa_port_ipv4_nh(struct ofdpa_port *ofdpa_port,
00fc0c51 1381 int flags, __be32 ip_addr, u32 *index)
3fbcdbf3
JP		 1382{
1383 struct ofdpa *ofdpa = ofdpa_port->ofdpa;
1384 struct ofdpa_neigh_tbl_entry *entry;
1385 struct ofdpa_neigh_tbl_entry *found;
1386 unsigned long lock_flags;
1387 bool adding = !(flags & OFDPA_OP_FLAG_REMOVE);
1388 bool updating;
1389 bool removing;
1390 bool resolved = true;
1391 int err = 0;
1392
00fc0c51 1393 entry = kzalloc(sizeof(*entry), GFP_KERNEL);
3fbcdbf3
JP		 1394 if (!entry)
1395 return -ENOMEM;
1396
1397 spin_lock_irqsave(&ofdpa->neigh_tbl_lock, lock_flags);
1398
1399 found = ofdpa_neigh_tbl_find(ofdpa, ip_addr);
3fbcdbf3
JP		 1400
1401 updating = found && adding;
1402 removing = found && !adding;
1403 adding = !found && adding;
1404
1405 if (adding) {
1406 entry->ip_addr = ip_addr;
1407 entry->dev = ofdpa_port->dev;
00fc0c51 1408 ofdpa_neigh_add(ofdpa, entry);
3fbcdbf3
JP		 1409 *index = entry->index;
1410 resolved = false;
1411 } else if (removing) {
ecf244f7 1412 *index = found->index;
b0791159 1413 ofdpa_neigh_del(found);
3fbcdbf3 1414 } else if (updating) {
00fc0c51 1415 ofdpa_neigh_update(found, NULL, false);
3fbcdbf3 1416 resolved = !is_zero_ether_addr(found->eth_dst);
ecf244f7 1417 *index = found->index;
3fbcdbf3
JP		 1418 } else {
1419 err = -ENOENT;
1420 }
1421
1422 spin_unlock_irqrestore(&ofdpa->neigh_tbl_lock, lock_flags);
1423
1424 if (!adding)
00fc0c51 1425 kfree(entry);
3fbcdbf3
JP		 1426
1427 if (err)
1428 return err;
1429
1430 /* Resolved means neigh ip_addr is resolved to neigh mac. */
1431
1432 if (!resolved)
00fc0c51 1433 err = ofdpa_port_ipv4_resolve(ofdpa_port, ip_addr);
3fbcdbf3
JP		 1434
1435 return err;
1436}
1437
1438static struct ofdpa_port *ofdpa_port_get(const struct ofdpa *ofdpa,
1439 int port_index)
1440{
1441 struct rocker_port *rocker_port;
1442
1443 rocker_port = ofdpa->rocker->ports[port_index];
1444 return rocker_port ? rocker_port->wpriv : NULL;
1445}
1446
1447static int ofdpa_port_vlan_flood_group(struct ofdpa_port *ofdpa_port,
3fbcdbf3
JP		 1448 int flags, __be16 vlan_id)
1449{
1450 struct ofdpa_port *p;
1451 const struct ofdpa *ofdpa = ofdpa_port->ofdpa;
1452 unsigned int port_count = ofdpa->rocker->port_count;
1453 u32 group_id = ROCKER_GROUP_L2_FLOOD(vlan_id, 0);
1454 u32 *group_ids;
1455 u8 group_count = 0;
1456 int err = 0;
1457 int i;
1458
b1357cfb 1459 group_ids = kcalloc(port_count, sizeof(u32), GFP_KERNEL);
3fbcdbf3
JP		 1460 if (!group_ids)
1461 return -ENOMEM;
1462
1463 /* Adjust the flood group for this VLAN. The flood group
1464 * references an L2 interface group for each port in this
1465 * VLAN.
1466 */
1467
1468 for (i = 0; i < port_count; i++) {
1469 p = ofdpa_port_get(ofdpa, i);
1470 if (!p)
1471 continue;
1472 if (!ofdpa_port_is_bridged(p))
1473 continue;
1474 if (test_bit(ntohs(vlan_id), p->vlan_bitmap)) {
1475 group_ids[group_count++] =
1476 ROCKER_GROUP_L2_INTERFACE(vlan_id, p->pport);
1477 }
1478 }
1479
1480 /* If there are no bridged ports in this VLAN, we're done */
1481 if (group_count == 0)
1482 goto no_ports_in_vlan;
1483
00fc0c51 1484 err = ofdpa_group_l2_flood(ofdpa_port, flags, vlan_id,
3fbcdbf3
JP		 1485 group_count, group_ids, group_id);
1486 if (err)
1487 netdev_err(ofdpa_port->dev, "Error (%d) port VLAN l2 flood group\n", err);
1488
1489no_ports_in_vlan:
00fc0c51 1490 kfree(group_ids);
3fbcdbf3
JP		 1491 return err;
1492}
1493
00fc0c51 1494static int ofdpa_port_vlan_l2_groups(struct ofdpa_port *ofdpa_port, int flags,
3fbcdbf3
JP		 1495 __be16 vlan_id, bool pop_vlan)
1496{
1497 const struct ofdpa *ofdpa = ofdpa_port->ofdpa;
1498 unsigned int port_count = ofdpa->rocker->port_count;
1499 struct ofdpa_port *p;
1500 bool adding = !(flags & OFDPA_OP_FLAG_REMOVE);
1501 u32 out_pport;
1502 int ref = 0;
1503 int err;
1504 int i;
1505
1506 /* An L2 interface group for this port in this VLAN, but
1507 * only when port STP state is LEARNING|FORWARDING.
1508 */
1509
1510 if (ofdpa_port->stp_state == BR_STATE_LEARNING ||
1511 ofdpa_port->stp_state == BR_STATE_FORWARDING) {
1512 out_pport = ofdpa_port->pport;
00fc0c51 1513 err = ofdpa_group_l2_interface(ofdpa_port, flags,
3fbcdbf3
JP		 1514 vlan_id, out_pport, pop_vlan);
1515 if (err) {
1516 netdev_err(ofdpa_port->dev, "Error (%d) port VLAN l2 group for pport %d\n",
1517 err, out_pport);
1518 return err;
1519 }
1520 }
1521
1522 /* An L2 interface group for this VLAN to CPU port.
1523 * Add when first port joins this VLAN and destroy when
1524 * last port leaves this VLAN.
1525 */
1526
1527 for (i = 0; i < port_count; i++) {
1528 p = ofdpa_port_get(ofdpa, i);
1529 if (p && test_bit(ntohs(vlan_id), p->vlan_bitmap))
1530 ref++;
1531 }
1532
1533 if ((!adding || ref != 1) && (adding || ref != 0))
1534 return 0;
1535
1536 out_pport = 0;
00fc0c51 1537 err = ofdpa_group_l2_interface(ofdpa_port, flags,
3fbcdbf3
JP		 1538 vlan_id, out_pport, pop_vlan);
1539 if (err) {
1540 netdev_err(ofdpa_port->dev, "Error (%d) port VLAN l2 group for CPU port\n", err);
1541 return err;
1542 }
1543
1544 return 0;
1545}
1546
1547static struct ofdpa_ctrl {
1548 const u8 *eth_dst;
1549 const u8 *eth_dst_mask;
1550 __be16 eth_type;
1551 bool acl;
1552 bool bridge;
1553 bool term;
1554 bool copy_to_cpu;
1555} ofdpa_ctrls[] = {
1556 [OFDPA_CTRL_LINK_LOCAL_MCAST] = {
1557 /* pass link local multicast pkts up to CPU for filtering */
1558 .eth_dst = ll_mac,
1559 .eth_dst_mask = ll_mask,
1560 .acl = true,
1561 },
1562 [OFDPA_CTRL_LOCAL_ARP] = {
1563 /* pass local ARP pkts up to CPU */
1564 .eth_dst = zero_mac,
1565 .eth_dst_mask = zero_mac,
1566 .eth_type = htons(ETH_P_ARP),
1567 .acl = true,
1568 },
1569 [OFDPA_CTRL_IPV4_MCAST] = {
1570 /* pass IPv4 mcast pkts up to CPU, RFC 1112 */
1571 .eth_dst = ipv4_mcast,
1572 .eth_dst_mask = ipv4_mask,
1573 .eth_type = htons(ETH_P_IP),
1574 .term = true,
1575 .copy_to_cpu = true,
1576 },
1577 [OFDPA_CTRL_IPV6_MCAST] = {
1578 /* pass IPv6 mcast pkts up to CPU, RFC 2464 */
1579 .eth_dst = ipv6_mcast,
1580 .eth_dst_mask = ipv6_mask,
1581 .eth_type = htons(ETH_P_IPV6),
1582 .term = true,
1583 .copy_to_cpu = true,
1584 },
1585 [OFDPA_CTRL_DFLT_BRIDGING] = {
1586 /* flood any pkts on vlan */
1587 .bridge = true,
1588 .copy_to_cpu = true,
1589 },
1590 [OFDPA_CTRL_DFLT_OVS] = {
1591 /* pass all pkts up to CPU */
1592 .eth_dst = zero_mac,
1593 .eth_dst_mask = zero_mac,
1594 .acl = true,
1595 },
1596};
1597
00fc0c51 1598static int ofdpa_port_ctrl_vlan_acl(struct ofdpa_port *ofdpa_port, int flags,
3fbcdbf3
JP		 1599 const struct ofdpa_ctrl *ctrl, __be16 vlan_id)
1600{
1601 u32 in_pport = ofdpa_port->pport;
1602 u32 in_pport_mask = 0xffffffff;
1603 u32 out_pport = 0;
1604 const u8 *eth_src = NULL;
1605 const u8 *eth_src_mask = NULL;
1606 __be16 vlan_id_mask = htons(0xffff);
1607 u8 ip_proto = 0;
1608 u8 ip_proto_mask = 0;
1609 u8 ip_tos = 0;
1610 u8 ip_tos_mask = 0;
1611 u32 group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport);
1612 int err;
1613
00fc0c51 1614 err = ofdpa_flow_tbl_acl(ofdpa_port, flags,
3fbcdbf3
JP		 1615 in_pport, in_pport_mask,
1616 eth_src, eth_src_mask,
1617 ctrl->eth_dst, ctrl->eth_dst_mask,
1618 ctrl->eth_type,
1619 vlan_id, vlan_id_mask,
1620 ip_proto, ip_proto_mask,
1621 ip_tos, ip_tos_mask,
1622 group_id);
1623
1624 if (err)
1625 netdev_err(ofdpa_port->dev, "Error (%d) ctrl ACL\n", err);
1626
1627 return err;
1628}
1629
1630static int ofdpa_port_ctrl_vlan_bridge(struct ofdpa_port *ofdpa_port,
00fc0c51 1631 int flags, const struct ofdpa_ctrl *ctrl,
3fbcdbf3
JP		 1632 __be16 vlan_id)
1633{
1634 enum rocker_of_dpa_table_id goto_tbl =
1635 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
1636 u32 group_id = ROCKER_GROUP_L2_FLOOD(vlan_id, 0);
1637 u32 tunnel_id = 0;
1638 int err;
1639
1640 if (!ofdpa_port_is_bridged(ofdpa_port))
1641 return 0;
1642
00fc0c51 1643 err = ofdpa_flow_tbl_bridge(ofdpa_port, flags,
3fbcdbf3
JP		 1644 ctrl->eth_dst, ctrl->eth_dst_mask,
1645 vlan_id, tunnel_id,
1646 goto_tbl, group_id, ctrl->copy_to_cpu);
1647
1648 if (err)
1649 netdev_err(ofdpa_port->dev, "Error (%d) ctrl FLOOD\n", err);
1650
1651 return err;
1652}
1653
00fc0c51 1654static int ofdpa_port_ctrl_vlan_term(struct ofdpa_port *ofdpa_port, int flags,
3fbcdbf3
JP		 1655 const struct ofdpa_ctrl *ctrl, __be16 vlan_id)
1656{
1657 u32 in_pport_mask = 0xffffffff;
1658 __be16 vlan_id_mask = htons(0xffff);
1659 int err;
1660
1661 if (ntohs(vlan_id) == 0)
1662 vlan_id = ofdpa_port->internal_vlan_id;
1663
00fc0c51 1664 err = ofdpa_flow_tbl_term_mac(ofdpa_port, ofdpa_port->pport, in_pport_mask,
3fbcdbf3
JP		 1665 ctrl->eth_type, ctrl->eth_dst,
1666 ctrl->eth_dst_mask, vlan_id,
1667 vlan_id_mask, ctrl->copy_to_cpu,
1668 flags);
1669
1670 if (err)
1671 netdev_err(ofdpa_port->dev, "Error (%d) ctrl term\n", err);
1672
1673 return err;
1674}
1675
00fc0c51 1676static int ofdpa_port_ctrl_vlan(struct ofdpa_port *ofdpa_port, int flags,
3fbcdbf3
JP		 1677 const struct ofdpa_ctrl *ctrl, __be16 vlan_id)
1678{
1679 if (ctrl->acl)
00fc0c51 1680 return ofdpa_port_ctrl_vlan_acl(ofdpa_port, flags,
3fbcdbf3
JP		 1681 ctrl, vlan_id);
1682 if (ctrl->bridge)
00fc0c51 1683 return ofdpa_port_ctrl_vlan_bridge(ofdpa_port, flags,
3fbcdbf3
JP		 1684 ctrl, vlan_id);
1685
1686 if (ctrl->term)
00fc0c51 1687 return ofdpa_port_ctrl_vlan_term(ofdpa_port, flags,
3fbcdbf3
JP		 1688 ctrl, vlan_id);
1689
1690 return -EOPNOTSUPP;
1691}
1692
00fc0c51 1693static int ofdpa_port_ctrl_vlan_add(struct ofdpa_port *ofdpa_port, int flags,
3fbcdbf3
JP		 1694 __be16 vlan_id)
1695{
1696 int err = 0;
1697 int i;
1698
1699 for (i = 0; i < OFDPA_CTRL_MAX; i++) {
1700 if (ofdpa_port->ctrls[i]) {
00fc0c51 1701 err = ofdpa_port_ctrl_vlan(ofdpa_port, flags,
3fbcdbf3
JP		 1702 &ofdpa_ctrls[i], vlan_id);
1703 if (err)
1704 return err;
1705 }
1706 }
1707
1708 return err;
1709}
1710
00fc0c51 1711static int ofdpa_port_ctrl(struct ofdpa_port *ofdpa_port, int flags,
3fbcdbf3
JP		 1712 const struct ofdpa_ctrl *ctrl)
1713{
1714 u16 vid;
1715 int err = 0;
1716
1717 for (vid = 1; vid < VLAN_N_VID; vid++) {
1718 if (!test_bit(vid, ofdpa_port->vlan_bitmap))
1719 continue;
00fc0c51 1720 err = ofdpa_port_ctrl_vlan(ofdpa_port, flags,
3fbcdbf3
JP		 1721 ctrl, htons(vid));
1722 if (err)
1723 break;
1724 }
1725
1726 return err;
1727}
1728
00fc0c51
AS		 1729static int ofdpa_port_vlan(struct ofdpa_port *ofdpa_port, int flags,
1730 u16 vid)
3fbcdbf3
JP		 1731{
1732 enum rocker_of_dpa_table_id goto_tbl =
1733 ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC;
1734 u32 in_pport = ofdpa_port->pport;
1735 __be16 vlan_id = htons(vid);
1736 __be16 vlan_id_mask = htons(0xffff);
1737 __be16 internal_vlan_id;
1738 bool untagged;
1739 bool adding = !(flags & OFDPA_OP_FLAG_REMOVE);
1740 int err;
1741
1742 internal_vlan_id = ofdpa_port_vid_to_vlan(ofdpa_port, vid, &untagged);
1743
1744 if (adding &&
1745 test_bit(ntohs(internal_vlan_id), ofdpa_port->vlan_bitmap))
1746 return 0; /* already added */
1747 else if (!adding &&
1748 !test_bit(ntohs(internal_vlan_id), ofdpa_port->vlan_bitmap))
1749 return 0; /* already removed */
1750
1751 change_bit(ntohs(internal_vlan_id), ofdpa_port->vlan_bitmap);
1752
1753 if (adding) {
00fc0c51 1754 err = ofdpa_port_ctrl_vlan_add(ofdpa_port, flags,
3fbcdbf3
JP		 1755 internal_vlan_id);
1756 if (err) {
1757 netdev_err(ofdpa_port->dev, "Error (%d) port ctrl vlan add\n", err);
00fc0c51 1758 goto err_vlan_add;
3fbcdbf3
JP		 1759 }
1760 }
1761
00fc0c51 1762 err = ofdpa_port_vlan_l2_groups(ofdpa_port, flags,
3fbcdbf3
JP		 1763 internal_vlan_id, untagged);
1764 if (err) {
1765 netdev_err(ofdpa_port->dev, "Error (%d) port VLAN l2 groups\n", err);
00fc0c51 1766 goto err_vlan_l2_groups;
3fbcdbf3
JP		 1767 }
1768
00fc0c51 1769 err = ofdpa_port_vlan_flood_group(ofdpa_port, flags,
3fbcdbf3
JP		 1770 internal_vlan_id);
1771 if (err) {
1772 netdev_err(ofdpa_port->dev, "Error (%d) port VLAN l2 flood group\n", err);
00fc0c51 1773 goto err_flood_group;
3fbcdbf3
JP		 1774 }
1775
00fc0c51 1776 err = ofdpa_flow_tbl_vlan(ofdpa_port, flags,
3fbcdbf3
JP		 1777 in_pport, vlan_id, vlan_id_mask,
1778 goto_tbl, untagged, internal_vlan_id);
1779 if (err)
1780 netdev_err(ofdpa_port->dev, "Error (%d) port VLAN table\n", err);
1781
00fc0c51 1782 return 0;
3fbcdbf3 1783
00fc0c51
AS		 1784err_vlan_add:
1785err_vlan_l2_groups:
1786err_flood_group:
1787 change_bit(ntohs(internal_vlan_id), ofdpa_port->vlan_bitmap);
3fbcdbf3
JP		 1788 return err;
1789}
1790
00fc0c51 1791static int ofdpa_port_ig_tbl(struct ofdpa_port *ofdpa_port, int flags)
3fbcdbf3
JP		 1792{
1793 enum rocker_of_dpa_table_id goto_tbl;
1794 u32 in_pport;
1795 u32 in_pport_mask;
1796 int err;
1797
1798 /* Normal Ethernet Frames. Matches pkts from any local physical
1799 * ports. Goto VLAN tbl.
1800 */
1801
1802 in_pport = 0;
1803 in_pport_mask = 0xffff0000;
1804 goto_tbl = ROCKER_OF_DPA_TABLE_ID_VLAN;
1805
00fc0c51 1806 err = ofdpa_flow_tbl_ig_port(ofdpa_port, flags,
3fbcdbf3
JP		 1807 in_pport, in_pport_mask,
1808 goto_tbl);
1809 if (err)
1810 netdev_err(ofdpa_port->dev, "Error (%d) ingress port table entry\n", err);
1811
1812 return err;
1813}
1814
1815struct ofdpa_fdb_learn_work {
1816 struct work_struct work;
1817 struct ofdpa_port *ofdpa_port;
3fbcdbf3
JP		 1818 int flags;
1819 u8 addr[ETH_ALEN];
1820 u16 vid;
1821};
1822
1823static void ofdpa_port_fdb_learn_work(struct work_struct *work)
1824{
1825 const struct ofdpa_fdb_learn_work *lw =
1826 container_of(work, struct ofdpa_fdb_learn_work, work);
1827 bool removing = (lw->flags & OFDPA_OP_FLAG_REMOVE);
1828 bool learned = (lw->flags & OFDPA_OP_FLAG_LEARNED);
1829 struct switchdev_notifier_fdb_info info;
1830
1831 info.addr = lw->addr;
1832 info.vid = lw->vid;
1833
1834 rtnl_lock();
1835 if (learned && removing)
6b26b51b 1836 call_switchdev_notifiers(SWITCHDEV_FDB_DEL_TO_BRIDGE,
3fbcdbf3
JP		 1837 lw->ofdpa_port->dev, &info.info);
1838 else if (learned && !removing)
6b26b51b 1839 call_switchdev_notifiers(SWITCHDEV_FDB_ADD_TO_BRIDGE,
3fbcdbf3
JP		 1840 lw->ofdpa_port->dev, &info.info);
1841 rtnl_unlock();
1842
00fc0c51 1843 kfree(work);
3fbcdbf3
JP		 1844}
1845
1846static int ofdpa_port_fdb_learn(struct ofdpa_port *ofdpa_port,
00fc0c51 1847 int flags, const u8 *addr, __be16 vlan_id)
3fbcdbf3
JP		 1848{
1849 struct ofdpa_fdb_learn_work *lw;
1850 enum rocker_of_dpa_table_id goto_tbl =
1851 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
1852 u32 out_pport = ofdpa_port->pport;
1853 u32 tunnel_id = 0;
1854 u32 group_id = ROCKER_GROUP_NONE;
3fbcdbf3
JP		 1855 bool copy_to_cpu = false;
1856 int err;
1857
1858 if (ofdpa_port_is_bridged(ofdpa_port))
1859 group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport);
1860
1861 if (!(flags & OFDPA_OP_FLAG_REFRESH)) {
00fc0c51 1862 err = ofdpa_flow_tbl_bridge(ofdpa_port, flags, addr,
3fbcdbf3
JP		 1863 NULL, vlan_id, tunnel_id, goto_tbl,
1864 group_id, copy_to_cpu);
1865 if (err)
1866 return err;
1867 }
1868
3fbcdbf3
JP		 1869 if (!ofdpa_port_is_bridged(ofdpa_port))
1870 return 0;
1871
00fc0c51 1872 lw = kzalloc(sizeof(*lw), GFP_ATOMIC);
3fbcdbf3
JP		 1873 if (!lw)
1874 return -ENOMEM;
1875
1876 INIT_WORK(&lw->work, ofdpa_port_fdb_learn_work);
1877
1878 lw->ofdpa_port = ofdpa_port;
3fbcdbf3
JP		 1879 lw->flags = flags;
1880 ether_addr_copy(lw->addr, addr);
1881 lw->vid = ofdpa_port_vlan_to_vid(ofdpa_port, vlan_id);
1882
00fc0c51 1883 schedule_work(&lw->work);
3fbcdbf3
JP		 1884 return 0;
1885}
1886
1887static struct ofdpa_fdb_tbl_entry *
1888ofdpa_fdb_tbl_find(const struct ofdpa *ofdpa,
1889 const struct ofdpa_fdb_tbl_entry *match)
1890{
1891 struct ofdpa_fdb_tbl_entry *found;
1892
1893 hash_for_each_possible(ofdpa->fdb_tbl, found, entry, match->key_crc32)
1894 if (memcmp(&found->key, &match->key, sizeof(found->key)) == 0)
1895 return found;
1896
1897 return NULL;
1898}
1899
1900static int ofdpa_port_fdb(struct ofdpa_port *ofdpa_port,
3fbcdbf3
JP		 1901 const unsigned char *addr,
1902 __be16 vlan_id, int flags)
1903{
1904 struct ofdpa *ofdpa = ofdpa_port->ofdpa;
1905 struct ofdpa_fdb_tbl_entry *fdb;
1906 struct ofdpa_fdb_tbl_entry *found;
1907 bool removing = (flags & OFDPA_OP_FLAG_REMOVE);
1908 unsigned long lock_flags;
1909
00fc0c51 1910 fdb = kzalloc(sizeof(*fdb), GFP_KERNEL);
3fbcdbf3
JP		 1911 if (!fdb)
1912 return -ENOMEM;
1913
1914 fdb->learned = (flags & OFDPA_OP_FLAG_LEARNED);
1915 fdb->touched = jiffies;
1916 fdb->key.ofdpa_port = ofdpa_port;
1917 ether_addr_copy(fdb->key.addr, addr);
1918 fdb->key.vlan_id = vlan_id;
1919 fdb->key_crc32 = crc32(~0, &fdb->key, sizeof(fdb->key));
1920
1921 spin_lock_irqsave(&ofdpa->fdb_tbl_lock, lock_flags);
1922
1923 found = ofdpa_fdb_tbl_find(ofdpa, fdb);
1924
1925 if (found) {
1926 found->touched = jiffies;
1927 if (removing) {
00fc0c51
AS		 1928 kfree(fdb);
1929 hash_del(&found->entry);
3fbcdbf3
JP		 1930 }
1931 } else if (!removing) {
00fc0c51
AS		 1932 hash_add(ofdpa->fdb_tbl, &fdb->entry,
1933 fdb->key_crc32);
3fbcdbf3
JP		 1934 }
1935
1936 spin_unlock_irqrestore(&ofdpa->fdb_tbl_lock, lock_flags);
1937
1938 /* Check if adding and already exists, or removing and can't find */
1939 if (!found != !removing) {
00fc0c51 1940 kfree(fdb);
3fbcdbf3
JP		 1941 if (!found && removing)
1942 return 0;
1943 /* Refreshing existing to update aging timers */
1944 flags |= OFDPA_OP_FLAG_REFRESH;
1945 }
1946
00fc0c51 1947 return ofdpa_port_fdb_learn(ofdpa_port, flags, addr, vlan_id);
3fbcdbf3
JP		 1948}
1949
00fc0c51 1950static int ofdpa_port_fdb_flush(struct ofdpa_port *ofdpa_port, int flags)
3fbcdbf3
JP		 1951{
1952 struct ofdpa *ofdpa = ofdpa_port->ofdpa;
1953 struct ofdpa_fdb_tbl_entry *found;
1954 unsigned long lock_flags;
1955 struct hlist_node *tmp;
1956 int bkt;
1957 int err = 0;
1958
1959 if (ofdpa_port->stp_state == BR_STATE_LEARNING ||
1960 ofdpa_port->stp_state == BR_STATE_FORWARDING)
1961 return 0;
1962
1963 flags |= OFDPA_OP_FLAG_NOWAIT | OFDPA_OP_FLAG_REMOVE;
1964
1965 spin_lock_irqsave(&ofdpa->fdb_tbl_lock, lock_flags);
1966
1967 hash_for_each_safe(ofdpa->fdb_tbl, bkt, tmp, found, entry) {
1968 if (found->key.ofdpa_port != ofdpa_port)
1969 continue;
1970 if (!found->learned)
1971 continue;
00fc0c51 1972 err = ofdpa_port_fdb_learn(ofdpa_port, flags,
3fbcdbf3
JP		 1973 found->key.addr,
1974 found->key.vlan_id);
1975 if (err)
1976 goto err_out;
00fc0c51 1977 hash_del(&found->entry);
3fbcdbf3
JP		 1978 }
1979
1980err_out:
1981 spin_unlock_irqrestore(&ofdpa->fdb_tbl_lock, lock_flags);
1982
1983 return err;
1984}
1985
e99e88a9 1986static void ofdpa_fdb_cleanup(struct timer_list *t)
3fbcdbf3 1987{
e99e88a9 1988 struct ofdpa *ofdpa = from_timer(ofdpa, t, fdb_cleanup_timer);
3fbcdbf3
JP		 1989 struct ofdpa_port *ofdpa_port;
1990 struct ofdpa_fdb_tbl_entry *entry;
1991 struct hlist_node *tmp;
3a8befcd 1992 unsigned long next_timer = jiffies + ofdpa->ageing_time;
3fbcdbf3
JP		 1993 unsigned long expires;
1994 unsigned long lock_flags;
1995 int flags = OFDPA_OP_FLAG_NOWAIT | OFDPA_OP_FLAG_REMOVE |
1996 OFDPA_OP_FLAG_LEARNED;
1997 int bkt;
1998
1999 spin_lock_irqsave(&ofdpa->fdb_tbl_lock, lock_flags);
2000
2001 hash_for_each_safe(ofdpa->fdb_tbl, bkt, tmp, entry, entry) {
2002 if (!entry->learned)
2003 continue;
2004 ofdpa_port = entry->key.ofdpa_port;
2005 expires = entry->touched + ofdpa_port->ageing_time;
2006 if (time_before_eq(expires, jiffies)) {
00fc0c51
AS		 2007 ofdpa_port_fdb_learn(ofdpa_port, flags,
2008 entry->key.addr,
3fbcdbf3
JP		 2009 entry->key.vlan_id);
2010 hash_del(&entry->entry);
2011 } else if (time_before(expires, next_timer)) {
2012 next_timer = expires;
2013 }
2014 }
2015
2016 spin_unlock_irqrestore(&ofdpa->fdb_tbl_lock, lock_flags);
2017
2018 mod_timer(&ofdpa->fdb_cleanup_timer, round_jiffies_up(next_timer));
2019}
2020
2021static int ofdpa_port_router_mac(struct ofdpa_port *ofdpa_port,
00fc0c51 2022 int flags, __be16 vlan_id)
3fbcdbf3
JP		 2023{
2024 u32 in_pport_mask = 0xffffffff;
2025 __be16 eth_type;
2026 const u8 *dst_mac_mask = ff_mac;
2027 __be16 vlan_id_mask = htons(0xffff);
2028 bool copy_to_cpu = false;
2029 int err;
2030
2031 if (ntohs(vlan_id) == 0)
2032 vlan_id = ofdpa_port->internal_vlan_id;
2033
2034 eth_type = htons(ETH_P_IP);
00fc0c51
AS		 2035 err = ofdpa_flow_tbl_term_mac(ofdpa_port, ofdpa_port->pport,
2036 in_pport_mask, eth_type,
2037 ofdpa_port->dev->dev_addr,
3fbcdbf3
JP		 2038 dst_mac_mask, vlan_id, vlan_id_mask,
2039 copy_to_cpu, flags);
2040 if (err)
2041 return err;
2042
2043 eth_type = htons(ETH_P_IPV6);
00fc0c51
AS		 2044 err = ofdpa_flow_tbl_term_mac(ofdpa_port, ofdpa_port->pport,
2045 in_pport_mask, eth_type,
2046 ofdpa_port->dev->dev_addr,
3fbcdbf3
JP		 2047 dst_mac_mask, vlan_id, vlan_id_mask,
2048 copy_to_cpu, flags);
2049
2050 return err;
2051}
2052
00fc0c51 2053static int ofdpa_port_fwding(struct ofdpa_port *ofdpa_port, int flags)
3fbcdbf3
JP		 2054{
2055 bool pop_vlan;
2056 u32 out_pport;
2057 __be16 vlan_id;
2058 u16 vid;
2059 int err;
2060
2061 /* Port will be forwarding-enabled if its STP state is LEARNING
2062 * or FORWARDING. Traffic from CPU can still egress, regardless of
2063 * port STP state. Use L2 interface group on port VLANs as a way
2064 * to toggle port forwarding: if forwarding is disabled, L2
2065 * interface group will not exist.
2066 */
2067
2068 if (ofdpa_port->stp_state != BR_STATE_LEARNING &&
2069 ofdpa_port->stp_state != BR_STATE_FORWARDING)
2070 flags |= OFDPA_OP_FLAG_REMOVE;
2071
2072 out_pport = ofdpa_port->pport;
2073 for (vid = 1; vid < VLAN_N_VID; vid++) {
2074 if (!test_bit(vid, ofdpa_port->vlan_bitmap))
2075 continue;
2076 vlan_id = htons(vid);
2077 pop_vlan = ofdpa_vlan_id_is_internal(vlan_id);
00fc0c51 2078 err = ofdpa_group_l2_interface(ofdpa_port, flags,
3fbcdbf3
JP		 2079 vlan_id, out_pport, pop_vlan);
2080 if (err) {
2081 netdev_err(ofdpa_port->dev, "Error (%d) port VLAN l2 group for pport %d\n",
2082 err, out_pport);
2083 return err;
2084 }
2085 }
2086
2087 return 0;
2088}
2089
2090static int ofdpa_port_stp_update(struct ofdpa_port *ofdpa_port,
3fbcdbf3
JP		 2091 int flags, u8 state)
2092{
2093 bool want[OFDPA_CTRL_MAX] = { 0, };
2094 bool prev_ctrls[OFDPA_CTRL_MAX];
16b8b6de 2095 u8 prev_state;
3fbcdbf3
JP		 2096 int err;
2097 int i;
2098
00fc0c51 2099 memcpy(prev_ctrls, ofdpa_port->ctrls, sizeof(prev_ctrls));
16b8b6de 2100 prev_state = ofdpa_port->stp_state;
00fc0c51
AS		 2101
2102 if (ofdpa_port->stp_state == state)
3fbcdbf3
JP		 2103 return 0;
2104
2105 ofdpa_port->stp_state = state;
2106
2107 switch (state) {
2108 case BR_STATE_DISABLED:
2109 /* port is completely disabled */
2110 break;
2111 case BR_STATE_LISTENING:
2112 case BR_STATE_BLOCKING:
2113 want[OFDPA_CTRL_LINK_LOCAL_MCAST] = true;
2114 break;
2115 case BR_STATE_LEARNING:
2116 case BR_STATE_FORWARDING:
2117 if (!ofdpa_port_is_ovsed(ofdpa_port))
2118 want[OFDPA_CTRL_LINK_LOCAL_MCAST] = true;
2119 want[OFDPA_CTRL_IPV4_MCAST] = true;
2120 want[OFDPA_CTRL_IPV6_MCAST] = true;
2121 if (ofdpa_port_is_bridged(ofdpa_port))
2122 want[OFDPA_CTRL_DFLT_BRIDGING] = true;
2123 else if (ofdpa_port_is_ovsed(ofdpa_port))
2124 want[OFDPA_CTRL_DFLT_OVS] = true;
2125 else
2126 want[OFDPA_CTRL_LOCAL_ARP] = true;
2127 break;
2128 }
2129
2130 for (i = 0; i < OFDPA_CTRL_MAX; i++) {
2131 if (want[i] != ofdpa_port->ctrls[i]) {
2132 int ctrl_flags = flags |
2133 (want[i] ? 0 : OFDPA_OP_FLAG_REMOVE);
00fc0c51 2134 err = ofdpa_port_ctrl(ofdpa_port, ctrl_flags,
3fbcdbf3
JP		 2135 &ofdpa_ctrls[i]);
2136 if (err)
00fc0c51 2137 goto err_port_ctrl;
3fbcdbf3
JP		 2138 ofdpa_port->ctrls[i] = want[i];
2139 }
2140 }
2141
00fc0c51 2142 err = ofdpa_port_fdb_flush(ofdpa_port, flags);
3fbcdbf3 2143 if (err)
00fc0c51 2144 goto err_fdb_flush;
3fbcdbf3 2145
00fc0c51
AS		 2146 err = ofdpa_port_fwding(ofdpa_port, flags);
2147 if (err)
2148 goto err_port_fwding;
3fbcdbf3 2149
00fc0c51 2150 return 0;
3fbcdbf3 2151
00fc0c51
AS		 2152err_port_ctrl:
2153err_fdb_flush:
2154err_port_fwding:
2155 memcpy(ofdpa_port->ctrls, prev_ctrls, sizeof(prev_ctrls));
2156 ofdpa_port->stp_state = prev_state;
3fbcdbf3
JP		 2157 return err;
2158}
2159
2160static int ofdpa_port_fwd_enable(struct ofdpa_port *ofdpa_port, int flags)
2161{
2162 if (ofdpa_port_is_bridged(ofdpa_port))
2163 /* bridge STP will enable port */
2164 return 0;
2165
2166 /* port is not bridged, so simulate going to FORWARDING state */
00fc0c51 2167 return ofdpa_port_stp_update(ofdpa_port, flags,
3fbcdbf3
JP		 2168 BR_STATE_FORWARDING);
2169}
2170
2171static int ofdpa_port_fwd_disable(struct ofdpa_port *ofdpa_port, int flags)
2172{
2173 if (ofdpa_port_is_bridged(ofdpa_port))
2174 /* bridge STP will disable port */
2175 return 0;
2176
2177 /* port is not bridged, so simulate going to DISABLED state */
00fc0c51 2178 return ofdpa_port_stp_update(ofdpa_port, flags,
3fbcdbf3
JP		 2179 BR_STATE_DISABLED);
2180}
2181
2182static int ofdpa_port_vlan_add(struct ofdpa_port *ofdpa_port,
3fbcdbf3
JP		 2183 u16 vid, u16 flags)
2184{
2185 int err;
2186
2187 /* XXX deal with flags for PVID and untagged */
2188
00fc0c51 2189 err = ofdpa_port_vlan(ofdpa_port, 0, vid);
3fbcdbf3
JP		 2190 if (err)
2191 return err;
2192
00fc0c51 2193 err = ofdpa_port_router_mac(ofdpa_port, 0, htons(vid));
3fbcdbf3 2194 if (err)
00fc0c51 2195 ofdpa_port_vlan(ofdpa_port,
3fbcdbf3
JP		 2196 OFDPA_OP_FLAG_REMOVE, vid);
2197
2198 return err;
2199}
2200
2201static int ofdpa_port_vlan_del(struct ofdpa_port *ofdpa_port,
2202 u16 vid, u16 flags)
2203{
2204 int err;
2205
00fc0c51
AS		 2206 err = ofdpa_port_router_mac(ofdpa_port, OFDPA_OP_FLAG_REMOVE,
2207 htons(vid));
3fbcdbf3
JP		 2208 if (err)
2209 return err;
2210
00fc0c51
AS		 2211 return ofdpa_port_vlan(ofdpa_port, OFDPA_OP_FLAG_REMOVE,
2212 vid);
3fbcdbf3
JP		 2213}
2214
2215static struct ofdpa_internal_vlan_tbl_entry *
2216ofdpa_internal_vlan_tbl_find(const struct ofdpa *ofdpa, int ifindex)
2217{
2218 struct ofdpa_internal_vlan_tbl_entry *found;
2219
2220 hash_for_each_possible(ofdpa->internal_vlan_tbl, found,
2221 entry, ifindex) {
2222 if (found->ifindex == ifindex)
2223 return found;
2224 }
2225
2226 return NULL;
2227}
2228
2229static __be16 ofdpa_port_internal_vlan_id_get(struct ofdpa_port *ofdpa_port,
2230 int ifindex)
2231{
2232 struct ofdpa *ofdpa = ofdpa_port->ofdpa;
2233 struct ofdpa_internal_vlan_tbl_entry *entry;
2234 struct ofdpa_internal_vlan_tbl_entry *found;
2235 unsigned long lock_flags;
2236 int i;
2237
2238 entry = kzalloc(sizeof(*entry), GFP_KERNEL);
2239 if (!entry)
2240 return 0;
2241
2242 entry->ifindex = ifindex;
2243
2244 spin_lock_irqsave(&ofdpa->internal_vlan_tbl_lock, lock_flags);
2245
2246 found = ofdpa_internal_vlan_tbl_find(ofdpa, ifindex);
2247 if (found) {
2248 kfree(entry);
2249 goto found;
2250 }
2251
2252 found = entry;
2253 hash_add(ofdpa->internal_vlan_tbl, &found->entry, found->ifindex);
2254
2255 for (i = 0; i < OFDPA_N_INTERNAL_VLANS; i++) {
2256 if (test_and_set_bit(i, ofdpa->internal_vlan_bitmap))
2257 continue;
2258 found->vlan_id = htons(OFDPA_INTERNAL_VLAN_ID_BASE + i);
2259 goto found;
2260 }
2261
2262 netdev_err(ofdpa_port->dev, "Out of internal VLAN IDs\n");
2263
2264found:
2265 found->ref_count++;
2266 spin_unlock_irqrestore(&ofdpa->internal_vlan_tbl_lock, lock_flags);
2267
2268 return found->vlan_id;
2269}
2270
00fc0c51
AS		 2271static int ofdpa_port_fib_ipv4(struct ofdpa_port *ofdpa_port, __be32 dst,
2272 int dst_len, struct fib_info *fi, u32 tb_id,
2273 int flags)
3fbcdbf3
JP		 2274{
2275 const struct fib_nh *nh;
2276 __be16 eth_type = htons(ETH_P_IP);
2277 __be32 dst_mask = inet_make_mask(dst_len);
2278 __be16 internal_vlan_id = ofdpa_port->internal_vlan_id;
2279 u32 priority = fi->fib_priority;
2280 enum rocker_of_dpa_table_id goto_tbl =
2281 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
2282 u32 group_id;
2283 bool nh_on_port;
2284 bool has_gw;
2285 u32 index;
2286 int err;
2287
2288 /* XXX support ECMP */
2289
2290 nh = fi->fib_nh;
2291 nh_on_port = (fi->fib_dev == ofdpa_port->dev);
2292 has_gw = !!nh->nh_gw;
2293
2294 if (has_gw && nh_on_port) {
00fc0c51 2295 err = ofdpa_port_ipv4_nh(ofdpa_port, flags,
3fbcdbf3
JP		 2296 nh->nh_gw, &index);
2297 if (err)
2298 return err;
2299
2300 group_id = ROCKER_GROUP_L3_UNICAST(index);
2301 } else {
2302 /* Send to CPU for processing */
2303 group_id = ROCKER_GROUP_L2_INTERFACE(internal_vlan_id, 0);
2304 }
2305
00fc0c51 2306 err = ofdpa_flow_tbl_ucast4_routing(ofdpa_port, eth_type, dst,
3fbcdbf3 2307 dst_mask, priority, goto_tbl,
936bd486 2308 group_id, fi, flags);
3fbcdbf3
JP		 2309 if (err)
2310 netdev_err(ofdpa_port->dev, "Error (%d) IPv4 route %pI4\n",
2311 err, &dst);
2312
2313 return err;
2314}
2315
2316static void
2317ofdpa_port_internal_vlan_id_put(const struct ofdpa_port *ofdpa_port,
2318 int ifindex)
2319{
2320 struct ofdpa *ofdpa = ofdpa_port->ofdpa;
2321 struct ofdpa_internal_vlan_tbl_entry *found;
2322 unsigned long lock_flags;
2323 unsigned long bit;
2324
2325 spin_lock_irqsave(&ofdpa->internal_vlan_tbl_lock, lock_flags);
2326
2327 found = ofdpa_internal_vlan_tbl_find(ofdpa, ifindex);
2328 if (!found) {
2329 netdev_err(ofdpa_port->dev,
2330 "ifindex (%d) not found in internal VLAN tbl\n",
2331 ifindex);
2332 goto not_found;
2333 }
2334
2335 if (--found->ref_count <= 0) {
2336 bit = ntohs(found->vlan_id) - OFDPA_INTERNAL_VLAN_ID_BASE;
2337 clear_bit(bit, ofdpa->internal_vlan_bitmap);
2338 hash_del(&found->entry);
2339 kfree(found);
2340 }
2341
2342not_found:
2343 spin_unlock_irqrestore(&ofdpa->internal_vlan_tbl_lock, lock_flags);
2344}
2345
2346/**********************************
2347 * Rocker world ops implementation
2348 **********************************/
2349
2350static int ofdpa_init(struct rocker *rocker)
2351{
2352 struct ofdpa *ofdpa = rocker->wpriv;
2353
2354 ofdpa->rocker = rocker;
2355
2356 hash_init(ofdpa->flow_tbl);
2357 spin_lock_init(&ofdpa->flow_tbl_lock);
2358
2359 hash_init(ofdpa->group_tbl);
2360 spin_lock_init(&ofdpa->group_tbl_lock);
2361
2362 hash_init(ofdpa->fdb_tbl);
2363 spin_lock_init(&ofdpa->fdb_tbl_lock);
2364
2365 hash_init(ofdpa->internal_vlan_tbl);
2366 spin_lock_init(&ofdpa->internal_vlan_tbl_lock);
2367
2368 hash_init(ofdpa->neigh_tbl);
2369 spin_lock_init(&ofdpa->neigh_tbl_lock);
2370
e99e88a9 2371 timer_setup(&ofdpa->fdb_cleanup_timer, ofdpa_fdb_cleanup, 0);
3fbcdbf3
JP		 2372 mod_timer(&ofdpa->fdb_cleanup_timer, jiffies);
2373
3a8befcd
JP		 2374 ofdpa->ageing_time = BR_DEFAULT_AGEING_TIME;
2375
3fbcdbf3
JP		 2376 return 0;
2377}
2378
2379static void ofdpa_fini(struct rocker *rocker)
2380{
2381 struct ofdpa *ofdpa = rocker->wpriv;
2382
2383 unsigned long flags;
2384 struct ofdpa_flow_tbl_entry *flow_entry;
2385 struct ofdpa_group_tbl_entry *group_entry;
2386 struct ofdpa_fdb_tbl_entry *fdb_entry;
2387 struct ofdpa_internal_vlan_tbl_entry *internal_vlan_entry;
2388 struct ofdpa_neigh_tbl_entry *neigh_entry;
2389 struct hlist_node *tmp;
2390 int bkt;
2391
2392 del_timer_sync(&ofdpa->fdb_cleanup_timer);
db701955 2393 flush_workqueue(rocker->rocker_owq);
3fbcdbf3
JP		 2394
2395 spin_lock_irqsave(&ofdpa->flow_tbl_lock, flags);
2396 hash_for_each_safe(ofdpa->flow_tbl, bkt, tmp, flow_entry, entry)
2397 hash_del(&flow_entry->entry);
2398 spin_unlock_irqrestore(&ofdpa->flow_tbl_lock, flags);
2399
2400 spin_lock_irqsave(&ofdpa->group_tbl_lock, flags);
2401 hash_for_each_safe(ofdpa->group_tbl, bkt, tmp, group_entry, entry)
2402 hash_del(&group_entry->entry);
2403 spin_unlock_irqrestore(&ofdpa->group_tbl_lock, flags);
2404
2405 spin_lock_irqsave(&ofdpa->fdb_tbl_lock, flags);
2406 hash_for_each_safe(ofdpa->fdb_tbl, bkt, tmp, fdb_entry, entry)
2407 hash_del(&fdb_entry->entry);
2408 spin_unlock_irqrestore(&ofdpa->fdb_tbl_lock, flags);
2409
2410 spin_lock_irqsave(&ofdpa->internal_vlan_tbl_lock, flags);
2411 hash_for_each_safe(ofdpa->internal_vlan_tbl, bkt,
2412 tmp, internal_vlan_entry, entry)
2413 hash_del(&internal_vlan_entry->entry);
2414 spin_unlock_irqrestore(&ofdpa->internal_vlan_tbl_lock, flags);
2415
2416 spin_lock_irqsave(&ofdpa->neigh_tbl_lock, flags);
2417 hash_for_each_safe(ofdpa->neigh_tbl, bkt, tmp, neigh_entry, entry)
2418 hash_del(&neigh_entry->entry);
2419 spin_unlock_irqrestore(&ofdpa->neigh_tbl_lock, flags);
2420}
2421
2422static int ofdpa_port_pre_init(struct rocker_port *rocker_port)
2423{
2424 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2425
2426 ofdpa_port->ofdpa = rocker_port->rocker->wpriv;
2427 ofdpa_port->rocker_port = rocker_port;
2428 ofdpa_port->dev = rocker_port->dev;
2429 ofdpa_port->pport = rocker_port->pport;
8cc186a4 2430 ofdpa_port->brport_flags = BR_LEARNING;
3fbcdbf3
JP		 2431 ofdpa_port->ageing_time = BR_DEFAULT_AGEING_TIME;
2432 return 0;
2433}
2434
2435static int ofdpa_port_init(struct rocker_port *rocker_port)
2436{
2437 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2438 int err;
2439
3fbcdbf3
JP		 2440 rocker_port_set_learning(rocker_port,
2441 !!(ofdpa_port->brport_flags & BR_LEARNING));
2442
00fc0c51 2443 err = ofdpa_port_ig_tbl(ofdpa_port, 0);
3fbcdbf3
JP		 2444 if (err) {
2445 netdev_err(ofdpa_port->dev, "install ig port table failed\n");
2446 return err;
2447 }
2448
2449 ofdpa_port->internal_vlan_id =
2450 ofdpa_port_internal_vlan_id_get(ofdpa_port,
2451 ofdpa_port->dev->ifindex);
2452
00fc0c51 2453 err = ofdpa_port_vlan_add(ofdpa_port, OFDPA_UNTAGGED_VID, 0);
3fbcdbf3
JP		 2454 if (err) {
2455 netdev_err(ofdpa_port->dev, "install untagged VLAN failed\n");
2456 goto err_untagged_vlan;
2457 }
2458 return 0;
2459
2460err_untagged_vlan:
00fc0c51 2461 ofdpa_port_ig_tbl(ofdpa_port, OFDPA_OP_FLAG_REMOVE);
3fbcdbf3
JP		 2462 return err;
2463}
2464
2465static void ofdpa_port_fini(struct rocker_port *rocker_port)
2466{
2467 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2468
00fc0c51 2469 ofdpa_port_ig_tbl(ofdpa_port, OFDPA_OP_FLAG_REMOVE);
3fbcdbf3
JP		 2470}
2471
2472static int ofdpa_port_open(struct rocker_port *rocker_port)
2473{
2474 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2475
2476 return ofdpa_port_fwd_enable(ofdpa_port, 0);
2477}
2478
2479static void ofdpa_port_stop(struct rocker_port *rocker_port)
2480{
2481 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2482
2483 ofdpa_port_fwd_disable(ofdpa_port, OFDPA_OP_FLAG_NOWAIT);
2484}
2485
2486static int ofdpa_port_attr_stp_state_set(struct rocker_port *rocker_port,
00fc0c51 2487 u8 state)
3fbcdbf3
JP		 2488{
2489 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2490
00fc0c51 2491 return ofdpa_port_stp_update(ofdpa_port, 0, state);
3fbcdbf3
JP		 2492}
2493
2494static int ofdpa_port_attr_bridge_flags_set(struct rocker_port *rocker_port,
2495 unsigned long brport_flags,
2496 struct switchdev_trans *trans)
2497{
2498 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2499 unsigned long orig_flags;
2500 int err = 0;
2501
2502 orig_flags = ofdpa_port->brport_flags;
2503 ofdpa_port->brport_flags = brport_flags;
2504 if ((orig_flags ^ ofdpa_port->brport_flags) & BR_LEARNING &&
2505 !switchdev_trans_ph_prepare(trans))
2506 err = rocker_port_set_learning(ofdpa_port->rocker_port,
2507 !!(ofdpa_port->brport_flags & BR_LEARNING));
2508
2509 if (switchdev_trans_ph_prepare(trans))
2510 ofdpa_port->brport_flags = orig_flags;
2511
2512 return err;
2513}
2514
2515static int
2516ofdpa_port_attr_bridge_flags_get(const struct rocker_port *rocker_port,
2517 unsigned long *p_brport_flags)
2518{
2519 const struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2520
2521 *p_brport_flags = ofdpa_port->brport_flags;
2522 return 0;
2523}
2524
96673a30
AS		 2525static int
2526ofdpa_port_attr_bridge_flags_support_get(const struct rocker_port *
2527 rocker_port,
2528 unsigned long *
2529 p_brport_flags_support)
2530{
2531 *p_brport_flags_support = BR_LEARNING;
2532 return 0;
2533}
2534
3fbcdbf3
JP		 2535static int
2536ofdpa_port_attr_bridge_ageing_time_set(struct rocker_port *rocker_port,
2537 u32 ageing_time,
2538 struct switchdev_trans *trans)
2539{
2540 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
3a8befcd 2541 struct ofdpa *ofdpa = ofdpa_port->ofdpa;
3fbcdbf3
JP		 2542
2543 if (!switchdev_trans_ph_prepare(trans)) {
2544 ofdpa_port->ageing_time = clock_t_to_jiffies(ageing_time);
3a8befcd
JP		 2545 if (ofdpa_port->ageing_time < ofdpa->ageing_time)
2546 ofdpa->ageing_time = ofdpa_port->ageing_time;
3fbcdbf3
JP		 2547 mod_timer(&ofdpa_port->ofdpa->fdb_cleanup_timer, jiffies);
2548 }
2549
2550 return 0;
2551}
2552
2553static int ofdpa_port_obj_vlan_add(struct rocker_port *rocker_port,
00fc0c51 2554 const struct switchdev_obj_port_vlan *vlan)
3fbcdbf3
JP		 2555{
2556 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2557 u16 vid;
2558 int err;
2559
2560 for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) {
00fc0c51 2561 err = ofdpa_port_vlan_add(ofdpa_port, vid, vlan->flags);
3fbcdbf3
JP		 2562 if (err)
2563 return err;
2564 }
2565
2566 return 0;
2567}
2568
2569static int ofdpa_port_obj_vlan_del(struct rocker_port *rocker_port,
2570 const struct switchdev_obj_port_vlan *vlan)
2571{
2572 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2573 u16 vid;
2574 int err;
2575
2576 for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) {
2577 err = ofdpa_port_vlan_del(ofdpa_port, vid, vlan->flags);
2578 if (err)
2579 return err;
2580 }
2581
2582 return 0;
2583}
2584
3fbcdbf3 2585static int ofdpa_port_obj_fdb_add(struct rocker_port *rocker_port,
00fc0c51 2586 u16 vid, const unsigned char *addr)
3fbcdbf3
JP		 2587{
2588 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
00fc0c51 2589 __be16 vlan_id = ofdpa_port_vid_to_vlan(ofdpa_port, vid, NULL);
3fbcdbf3
JP		 2590
2591 if (!ofdpa_port_is_bridged(ofdpa_port))
2592 return -EINVAL;
2593
00fc0c51 2594 return ofdpa_port_fdb(ofdpa_port, addr, vlan_id, 0);
3fbcdbf3
JP		 2595}
2596
2597static int ofdpa_port_obj_fdb_del(struct rocker_port *rocker_port,
00fc0c51 2598 u16 vid, const unsigned char *addr)
3fbcdbf3
JP		 2599{
2600 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
00fc0c51 2601 __be16 vlan_id = ofdpa_port_vid_to_vlan(ofdpa_port, vid, NULL);
3fbcdbf3
JP		 2602 int flags = OFDPA_OP_FLAG_REMOVE;
2603
2604 if (!ofdpa_port_is_bridged(ofdpa_port))
2605 return -EINVAL;
2606
00fc0c51 2607 return ofdpa_port_fdb(ofdpa_port, addr, vlan_id, flags);
3fbcdbf3
JP		 2608}
2609
3fbcdbf3
JP		 2610static int ofdpa_port_bridge_join(struct ofdpa_port *ofdpa_port,
2611 struct net_device *bridge)
2612{
2613 int err;
2614
2615 /* Port is joining bridge, so the internal VLAN for the
2616 * port is going to change to the bridge internal VLAN.
2617 * Let's remove untagged VLAN (vid=0) from port and
2618 * re-add once internal VLAN has changed.
2619 */
2620
2621 err = ofdpa_port_vlan_del(ofdpa_port, OFDPA_UNTAGGED_VID, 0);
2622 if (err)
2623 return err;
2624
2625 ofdpa_port_internal_vlan_id_put(ofdpa_port,
2626 ofdpa_port->dev->ifindex);
2627 ofdpa_port->internal_vlan_id =
2628 ofdpa_port_internal_vlan_id_get(ofdpa_port, bridge->ifindex);
2629
2630 ofdpa_port->bridge_dev = bridge;
3fbcdbf3 2631
00fc0c51 2632 return ofdpa_port_vlan_add(ofdpa_port, OFDPA_UNTAGGED_VID, 0);
3fbcdbf3
JP		 2633}
2634
2635static int ofdpa_port_bridge_leave(struct ofdpa_port *ofdpa_port)
2636{
2637 int err;
2638
2639 err = ofdpa_port_vlan_del(ofdpa_port, OFDPA_UNTAGGED_VID, 0);
2640 if (err)
2641 return err;
2642
2643 ofdpa_port_internal_vlan_id_put(ofdpa_port,
2644 ofdpa_port->bridge_dev->ifindex);
2645 ofdpa_port->internal_vlan_id =
2646 ofdpa_port_internal_vlan_id_get(ofdpa_port,
2647 ofdpa_port->dev->ifindex);
2648
3fbcdbf3
JP		 2649 ofdpa_port->bridge_dev = NULL;
2650
00fc0c51 2651 err = ofdpa_port_vlan_add(ofdpa_port, OFDPA_UNTAGGED_VID, 0);
3fbcdbf3
JP		 2652 if (err)
2653 return err;
2654
2655 if (ofdpa_port->dev->flags & IFF_UP)
2656 err = ofdpa_port_fwd_enable(ofdpa_port, 0);
2657
2658 return err;
2659}
2660
2661static int ofdpa_port_ovs_changed(struct ofdpa_port *ofdpa_port,
2662 struct net_device *master)
2663{
2664 int err;
2665
2666 ofdpa_port->bridge_dev = master;
2667
2668 err = ofdpa_port_fwd_disable(ofdpa_port, 0);
2669 if (err)
2670 return err;
2671 err = ofdpa_port_fwd_enable(ofdpa_port, 0);
2672
2673 return err;
2674}
2675
2676static int ofdpa_port_master_linked(struct rocker_port *rocker_port,
2677 struct net_device *master)
2678{
2679 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2680 int err = 0;
2681
2682 if (netif_is_bridge_master(master))
2683 err = ofdpa_port_bridge_join(ofdpa_port, master);
2684 else if (netif_is_ovs_master(master))
2685 err = ofdpa_port_ovs_changed(ofdpa_port, master);
2686 return err;
2687}
2688
2689static int ofdpa_port_master_unlinked(struct rocker_port *rocker_port,
2690 struct net_device *master)
2691{
2692 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2693 int err = 0;
2694
2695 if (ofdpa_port_is_bridged(ofdpa_port))
2696 err = ofdpa_port_bridge_leave(ofdpa_port);
2697 else if (ofdpa_port_is_ovsed(ofdpa_port))
2698 err = ofdpa_port_ovs_changed(ofdpa_port, NULL);
2699 return err;
2700}
2701
2702static int ofdpa_port_neigh_update(struct rocker_port *rocker_port,
2703 struct neighbour *n)
2704{
2705 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2706 int flags = (n->nud_state & NUD_VALID ? 0 : OFDPA_OP_FLAG_REMOVE) |
2707 OFDPA_OP_FLAG_NOWAIT;
2708 __be32 ip_addr = *(__be32 *) n->primary_key;
2709
00fc0c51 2710 return ofdpa_port_ipv4_neigh(ofdpa_port, flags, ip_addr, n->ha);
3fbcdbf3
JP		 2711}
2712
2713static int ofdpa_port_neigh_destroy(struct rocker_port *rocker_port,
2714 struct neighbour *n)
2715{
2716 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2717 int flags = OFDPA_OP_FLAG_REMOVE | OFDPA_OP_FLAG_NOWAIT;
2718 __be32 ip_addr = *(__be32 *) n->primary_key;
2719
00fc0c51 2720 return ofdpa_port_ipv4_neigh(ofdpa_port, flags, ip_addr, n->ha);
3fbcdbf3
JP		 2721}
2722
2723static int ofdpa_port_ev_mac_vlan_seen(struct rocker_port *rocker_port,
2724 const unsigned char *addr,
2725 __be16 vlan_id)
2726{
2727 struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
2728 int flags = OFDPA_OP_FLAG_NOWAIT | OFDPA_OP_FLAG_LEARNED;
2729
2730 if (ofdpa_port->stp_state != BR_STATE_LEARNING &&
2731 ofdpa_port->stp_state != BR_STATE_FORWARDING)
2732 return 0;
2733
00fc0c51 2734 return ofdpa_port_fdb(ofdpa_port, addr, vlan_id, flags);
3fbcdbf3
JP		 2735}
2736
936bd486
JP		 2737static struct ofdpa_port *ofdpa_port_dev_lower_find(struct net_device *dev,
2738 struct rocker *rocker)
2739{
2740 struct rocker_port *rocker_port;
2741
2742 rocker_port = rocker_port_dev_lower_find(dev, rocker);
2743 return rocker_port ? rocker_port->wpriv : NULL;
2744}
2745
2746static int ofdpa_fib4_add(struct rocker *rocker,
2747 const struct fib_entry_notifier_info *fen_info)
2748{
2749 struct ofdpa *ofdpa = rocker->wpriv;
2750 struct ofdpa_port *ofdpa_port;
2751 int err;
2752
2753 if (ofdpa->fib_aborted)
2754 return 0;
2755 ofdpa_port = ofdpa_port_dev_lower_find(fen_info->fi->fib_dev, rocker);
2756 if (!ofdpa_port)
2757 return 0;
00fc0c51 2758 err = ofdpa_port_fib_ipv4(ofdpa_port, htonl(fen_info->dst),
936bd486
JP		 2759 fen_info->dst_len, fen_info->fi,
2760 fen_info->tb_id, 0);
2761 if (err)
2762 return err;
63e701c1 2763 fen_info->fi->fib_nh->nh_flags |= RTNH_F_OFFLOAD;
936bd486
JP		 2764 return 0;
2765}
2766
2767static int ofdpa_fib4_del(struct rocker *rocker,
2768 const struct fib_entry_notifier_info *fen_info)
2769{
2770 struct ofdpa *ofdpa = rocker->wpriv;
2771 struct ofdpa_port *ofdpa_port;
2772
2773 if (ofdpa->fib_aborted)
2774 return 0;
2775 ofdpa_port = ofdpa_port_dev_lower_find(fen_info->fi->fib_dev, rocker);
2776 if (!ofdpa_port)
2777 return 0;
63e701c1 2778 fen_info->fi->fib_nh->nh_flags &= ~RTNH_F_OFFLOAD;
00fc0c51 2779 return ofdpa_port_fib_ipv4(ofdpa_port, htonl(fen_info->dst),
936bd486
JP		 2780 fen_info->dst_len, fen_info->fi,
2781 fen_info->tb_id, OFDPA_OP_FLAG_REMOVE);
2782}
2783
2784static void ofdpa_fib4_abort(struct rocker *rocker)
2785{
2786 struct ofdpa *ofdpa = rocker->wpriv;
2787 struct ofdpa_port *ofdpa_port;
2788 struct ofdpa_flow_tbl_entry *flow_entry;
2789 struct hlist_node *tmp;
2790 unsigned long flags;
2791 int bkt;
2792
2793 if (ofdpa->fib_aborted)
2794 return;
2795
2796 spin_lock_irqsave(&ofdpa->flow_tbl_lock, flags);
2797 hash_for_each_safe(ofdpa->flow_tbl, bkt, tmp, flow_entry, entry) {
2798 if (flow_entry->key.tbl_id !=
2799 ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING)
2800 continue;
2801 ofdpa_port = ofdpa_port_dev_lower_find(flow_entry->fi->fib_dev,
2802 rocker);
2803 if (!ofdpa_port)
2804 continue;
63e701c1 2805 flow_entry->fi->fib_nh->nh_flags &= ~RTNH_F_OFFLOAD;
00fc0c51 2806 ofdpa_flow_tbl_del(ofdpa_port, OFDPA_OP_FLAG_REMOVE,
936bd486
JP		 2807 flow_entry);
2808 }
2809 spin_unlock_irqrestore(&ofdpa->flow_tbl_lock, flags);
2810 ofdpa->fib_aborted = true;
2811}
2812
e420114e
JP		 2813struct rocker_world_ops rocker_ofdpa_ops = {
2814 .kind = "ofdpa",
2815 .priv_size = sizeof(struct ofdpa),
2816 .port_priv_size = sizeof(struct ofdpa_port),
2817 .mode = ROCKER_PORT_MODE_OF_DPA,
3fbcdbf3
JP		 2818 .init = ofdpa_init,
2819 .fini = ofdpa_fini,
2820 .port_pre_init = ofdpa_port_pre_init,
2821 .port_init = ofdpa_port_init,
2822 .port_fini = ofdpa_port_fini,
2823 .port_open = ofdpa_port_open,
2824 .port_stop = ofdpa_port_stop,
2825 .port_attr_stp_state_set = ofdpa_port_attr_stp_state_set,
2826 .port_attr_bridge_flags_set = ofdpa_port_attr_bridge_flags_set,
2827 .port_attr_bridge_flags_get = ofdpa_port_attr_bridge_flags_get,
96673a30 2828 .port_attr_bridge_flags_support_get = ofdpa_port_attr_bridge_flags_support_get,
3fbcdbf3
JP		 2829 .port_attr_bridge_ageing_time_set = ofdpa_port_attr_bridge_ageing_time_set,
2830 .port_obj_vlan_add = ofdpa_port_obj_vlan_add,
2831 .port_obj_vlan_del = ofdpa_port_obj_vlan_del,
3fbcdbf3
JP		 2832 .port_obj_fdb_add = ofdpa_port_obj_fdb_add,
2833 .port_obj_fdb_del = ofdpa_port_obj_fdb_del,
3fbcdbf3
JP		 2834 .port_master_linked = ofdpa_port_master_linked,
2835 .port_master_unlinked = ofdpa_port_master_unlinked,
2836 .port_neigh_update = ofdpa_port_neigh_update,
2837 .port_neigh_destroy = ofdpa_port_neigh_destroy,
2838 .port_ev_mac_vlan_seen = ofdpa_port_ev_mac_vlan_seen,
936bd486
JP		 2839 .fib4_add = ofdpa_fib4_add,
2840 .fib4_del = ofdpa_fib4_del,
2841 .fib4_abort = ofdpa_fib4_abort,
e420114e 2842};
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