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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 | ||
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 */ | |
936bd486 | 102 | struct fib_info *fi; |
3fbcdbf3 JP |
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 | |
e420114e JP |
175 | |
176 | struct 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 | ||
196 | struct 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 |
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 | static void *__ofdpa_mem_alloc(struct switchdev_trans *trans, int flags, | |
304 | size_t size) | |
305 | { | |
306 | struct switchdev_trans_item *elem = NULL; | |
307 | gfp_t gfp_flags = (flags & OFDPA_OP_FLAG_NOWAIT) ? | |
308 | GFP_ATOMIC : GFP_KERNEL; | |
309 | ||
310 | /* If in transaction prepare phase, allocate the memory | |
311 | * and enqueue it on a transaction. If in transaction | |
312 | * commit phase, dequeue the memory from the transaction | |
313 | * rather than re-allocating the memory. The idea is the | |
314 | * driver code paths for prepare and commit are identical | |
315 | * so the memory allocated in the prepare phase is the | |
316 | * memory used in the commit phase. | |
317 | */ | |
318 | ||
319 | if (!trans) { | |
320 | elem = kzalloc(size + sizeof(*elem), gfp_flags); | |
321 | } else if (switchdev_trans_ph_prepare(trans)) { | |
322 | elem = kzalloc(size + sizeof(*elem), gfp_flags); | |
323 | if (!elem) | |
324 | return NULL; | |
325 | switchdev_trans_item_enqueue(trans, elem, kfree, elem); | |
326 | } else { | |
327 | elem = switchdev_trans_item_dequeue(trans); | |
328 | } | |
329 | ||
330 | return elem ? elem + 1 : NULL; | |
331 | } | |
332 | ||
333 | static void *ofdpa_kzalloc(struct switchdev_trans *trans, int flags, | |
334 | size_t size) | |
335 | { | |
336 | return __ofdpa_mem_alloc(trans, flags, size); | |
337 | } | |
338 | ||
339 | static void *ofdpa_kcalloc(struct switchdev_trans *trans, int flags, | |
340 | size_t n, size_t size) | |
341 | { | |
342 | return __ofdpa_mem_alloc(trans, flags, n * size); | |
343 | } | |
344 | ||
345 | static void ofdpa_kfree(struct switchdev_trans *trans, const void *mem) | |
346 | { | |
347 | struct switchdev_trans_item *elem; | |
348 | ||
349 | /* Frees are ignored if in transaction prepare phase. The | |
350 | * memory remains on the per-port list until freed in the | |
351 | * commit phase. | |
352 | */ | |
353 | ||
354 | if (switchdev_trans_ph_prepare(trans)) | |
355 | return; | |
356 | ||
357 | elem = (struct switchdev_trans_item *) mem - 1; | |
358 | kfree(elem); | |
359 | } | |
360 | ||
361 | /************************************************************* | |
362 | * Flow, group, FDB, internal VLAN and neigh command prepares | |
363 | *************************************************************/ | |
364 | ||
365 | static int | |
366 | ofdpa_cmd_flow_tbl_add_ig_port(struct rocker_desc_info *desc_info, | |
367 | const struct ofdpa_flow_tbl_entry *entry) | |
368 | { | |
369 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT, | |
370 | entry->key.ig_port.in_pport)) | |
371 | return -EMSGSIZE; | |
372 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK, | |
373 | entry->key.ig_port.in_pport_mask)) | |
374 | return -EMSGSIZE; | |
375 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID, | |
376 | entry->key.ig_port.goto_tbl)) | |
377 | return -EMSGSIZE; | |
378 | ||
379 | return 0; | |
380 | } | |
381 | ||
382 | static int | |
383 | ofdpa_cmd_flow_tbl_add_vlan(struct rocker_desc_info *desc_info, | |
384 | const struct ofdpa_flow_tbl_entry *entry) | |
385 | { | |
386 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT, | |
387 | entry->key.vlan.in_pport)) | |
388 | return -EMSGSIZE; | |
389 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, | |
390 | entry->key.vlan.vlan_id)) | |
391 | return -EMSGSIZE; | |
392 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK, | |
393 | entry->key.vlan.vlan_id_mask)) | |
394 | return -EMSGSIZE; | |
395 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID, | |
396 | entry->key.vlan.goto_tbl)) | |
397 | return -EMSGSIZE; | |
398 | if (entry->key.vlan.untagged && | |
399 | rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_NEW_VLAN_ID, | |
400 | entry->key.vlan.new_vlan_id)) | |
401 | return -EMSGSIZE; | |
402 | ||
403 | return 0; | |
404 | } | |
405 | ||
406 | static int | |
407 | ofdpa_cmd_flow_tbl_add_term_mac(struct rocker_desc_info *desc_info, | |
408 | const struct ofdpa_flow_tbl_entry *entry) | |
409 | { | |
410 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT, | |
411 | entry->key.term_mac.in_pport)) | |
412 | return -EMSGSIZE; | |
413 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK, | |
414 | entry->key.term_mac.in_pport_mask)) | |
415 | return -EMSGSIZE; | |
416 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE, | |
417 | entry->key.term_mac.eth_type)) | |
418 | return -EMSGSIZE; | |
419 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC, | |
420 | ETH_ALEN, entry->key.term_mac.eth_dst)) | |
421 | return -EMSGSIZE; | |
422 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK, | |
423 | ETH_ALEN, entry->key.term_mac.eth_dst_mask)) | |
424 | return -EMSGSIZE; | |
425 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, | |
426 | entry->key.term_mac.vlan_id)) | |
427 | return -EMSGSIZE; | |
428 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK, | |
429 | entry->key.term_mac.vlan_id_mask)) | |
430 | return -EMSGSIZE; | |
431 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID, | |
432 | entry->key.term_mac.goto_tbl)) | |
433 | return -EMSGSIZE; | |
434 | if (entry->key.term_mac.copy_to_cpu && | |
435 | rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION, | |
436 | entry->key.term_mac.copy_to_cpu)) | |
437 | return -EMSGSIZE; | |
438 | ||
439 | return 0; | |
440 | } | |
441 | ||
442 | static int | |
443 | ofdpa_cmd_flow_tbl_add_ucast_routing(struct rocker_desc_info *desc_info, | |
444 | const struct ofdpa_flow_tbl_entry *entry) | |
445 | { | |
446 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE, | |
447 | entry->key.ucast_routing.eth_type)) | |
448 | return -EMSGSIZE; | |
449 | if (rocker_tlv_put_be32(desc_info, ROCKER_TLV_OF_DPA_DST_IP, | |
450 | entry->key.ucast_routing.dst4)) | |
451 | return -EMSGSIZE; | |
452 | if (rocker_tlv_put_be32(desc_info, ROCKER_TLV_OF_DPA_DST_IP_MASK, | |
453 | entry->key.ucast_routing.dst4_mask)) | |
454 | return -EMSGSIZE; | |
455 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID, | |
456 | entry->key.ucast_routing.goto_tbl)) | |
457 | return -EMSGSIZE; | |
458 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID, | |
459 | entry->key.ucast_routing.group_id)) | |
460 | return -EMSGSIZE; | |
461 | ||
462 | return 0; | |
463 | } | |
464 | ||
465 | static int | |
466 | ofdpa_cmd_flow_tbl_add_bridge(struct rocker_desc_info *desc_info, | |
467 | const struct ofdpa_flow_tbl_entry *entry) | |
468 | { | |
469 | if (entry->key.bridge.has_eth_dst && | |
470 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC, | |
471 | ETH_ALEN, entry->key.bridge.eth_dst)) | |
472 | return -EMSGSIZE; | |
473 | if (entry->key.bridge.has_eth_dst_mask && | |
474 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK, | |
475 | ETH_ALEN, entry->key.bridge.eth_dst_mask)) | |
476 | return -EMSGSIZE; | |
477 | if (entry->key.bridge.vlan_id && | |
478 | rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, | |
479 | entry->key.bridge.vlan_id)) | |
480 | return -EMSGSIZE; | |
481 | if (entry->key.bridge.tunnel_id && | |
482 | rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_TUNNEL_ID, | |
483 | entry->key.bridge.tunnel_id)) | |
484 | return -EMSGSIZE; | |
485 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID, | |
486 | entry->key.bridge.goto_tbl)) | |
487 | return -EMSGSIZE; | |
488 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID, | |
489 | entry->key.bridge.group_id)) | |
490 | return -EMSGSIZE; | |
491 | if (entry->key.bridge.copy_to_cpu && | |
492 | rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION, | |
493 | entry->key.bridge.copy_to_cpu)) | |
494 | return -EMSGSIZE; | |
495 | ||
496 | return 0; | |
497 | } | |
498 | ||
499 | static int | |
500 | ofdpa_cmd_flow_tbl_add_acl(struct rocker_desc_info *desc_info, | |
501 | const struct ofdpa_flow_tbl_entry *entry) | |
502 | { | |
503 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT, | |
504 | entry->key.acl.in_pport)) | |
505 | return -EMSGSIZE; | |
506 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK, | |
507 | entry->key.acl.in_pport_mask)) | |
508 | return -EMSGSIZE; | |
509 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC, | |
510 | ETH_ALEN, entry->key.acl.eth_src)) | |
511 | return -EMSGSIZE; | |
512 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC_MASK, | |
513 | ETH_ALEN, entry->key.acl.eth_src_mask)) | |
514 | return -EMSGSIZE; | |
515 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC, | |
516 | ETH_ALEN, entry->key.acl.eth_dst)) | |
517 | return -EMSGSIZE; | |
518 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK, | |
519 | ETH_ALEN, entry->key.acl.eth_dst_mask)) | |
520 | return -EMSGSIZE; | |
521 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE, | |
522 | entry->key.acl.eth_type)) | |
523 | return -EMSGSIZE; | |
524 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, | |
525 | entry->key.acl.vlan_id)) | |
526 | return -EMSGSIZE; | |
527 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK, | |
528 | entry->key.acl.vlan_id_mask)) | |
529 | return -EMSGSIZE; | |
530 | ||
531 | switch (ntohs(entry->key.acl.eth_type)) { | |
532 | case ETH_P_IP: | |
533 | case ETH_P_IPV6: | |
534 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_PROTO, | |
535 | entry->key.acl.ip_proto)) | |
536 | return -EMSGSIZE; | |
537 | if (rocker_tlv_put_u8(desc_info, | |
538 | ROCKER_TLV_OF_DPA_IP_PROTO_MASK, | |
539 | entry->key.acl.ip_proto_mask)) | |
540 | return -EMSGSIZE; | |
541 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_DSCP, | |
542 | entry->key.acl.ip_tos & 0x3f)) | |
543 | return -EMSGSIZE; | |
544 | if (rocker_tlv_put_u8(desc_info, | |
545 | ROCKER_TLV_OF_DPA_IP_DSCP_MASK, | |
546 | entry->key.acl.ip_tos_mask & 0x3f)) | |
547 | return -EMSGSIZE; | |
548 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_ECN, | |
549 | (entry->key.acl.ip_tos & 0xc0) >> 6)) | |
550 | return -EMSGSIZE; | |
551 | if (rocker_tlv_put_u8(desc_info, | |
552 | ROCKER_TLV_OF_DPA_IP_ECN_MASK, | |
553 | (entry->key.acl.ip_tos_mask & 0xc0) >> 6)) | |
554 | return -EMSGSIZE; | |
555 | break; | |
556 | } | |
557 | ||
558 | if (entry->key.acl.group_id != ROCKER_GROUP_NONE && | |
559 | rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID, | |
560 | entry->key.acl.group_id)) | |
561 | return -EMSGSIZE; | |
562 | ||
563 | return 0; | |
564 | } | |
565 | ||
566 | static int ofdpa_cmd_flow_tbl_add(const struct rocker_port *rocker_port, | |
567 | struct rocker_desc_info *desc_info, | |
568 | void *priv) | |
569 | { | |
570 | const struct ofdpa_flow_tbl_entry *entry = priv; | |
571 | struct rocker_tlv *cmd_info; | |
572 | int err = 0; | |
573 | ||
574 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd)) | |
575 | return -EMSGSIZE; | |
576 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
577 | if (!cmd_info) | |
578 | return -EMSGSIZE; | |
579 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_TABLE_ID, | |
580 | entry->key.tbl_id)) | |
581 | return -EMSGSIZE; | |
582 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_PRIORITY, | |
583 | entry->key.priority)) | |
584 | return -EMSGSIZE; | |
585 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_HARDTIME, 0)) | |
586 | return -EMSGSIZE; | |
587 | if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_OF_DPA_COOKIE, | |
588 | entry->cookie)) | |
589 | return -EMSGSIZE; | |
590 | ||
591 | switch (entry->key.tbl_id) { | |
592 | case ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT: | |
593 | err = ofdpa_cmd_flow_tbl_add_ig_port(desc_info, entry); | |
594 | break; | |
595 | case ROCKER_OF_DPA_TABLE_ID_VLAN: | |
596 | err = ofdpa_cmd_flow_tbl_add_vlan(desc_info, entry); | |
597 | break; | |
598 | case ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC: | |
599 | err = ofdpa_cmd_flow_tbl_add_term_mac(desc_info, entry); | |
600 | break; | |
601 | case ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING: | |
602 | err = ofdpa_cmd_flow_tbl_add_ucast_routing(desc_info, entry); | |
603 | break; | |
604 | case ROCKER_OF_DPA_TABLE_ID_BRIDGING: | |
605 | err = ofdpa_cmd_flow_tbl_add_bridge(desc_info, entry); | |
606 | break; | |
607 | case ROCKER_OF_DPA_TABLE_ID_ACL_POLICY: | |
608 | err = ofdpa_cmd_flow_tbl_add_acl(desc_info, entry); | |
609 | break; | |
610 | default: | |
611 | err = -ENOTSUPP; | |
612 | break; | |
613 | } | |
614 | ||
615 | if (err) | |
616 | return err; | |
617 | ||
618 | rocker_tlv_nest_end(desc_info, cmd_info); | |
619 | ||
620 | return 0; | |
621 | } | |
622 | ||
623 | static int ofdpa_cmd_flow_tbl_del(const struct rocker_port *rocker_port, | |
624 | struct rocker_desc_info *desc_info, | |
625 | void *priv) | |
626 | { | |
627 | const struct ofdpa_flow_tbl_entry *entry = priv; | |
628 | struct rocker_tlv *cmd_info; | |
629 | ||
630 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd)) | |
631 | return -EMSGSIZE; | |
632 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
633 | if (!cmd_info) | |
634 | return -EMSGSIZE; | |
635 | if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_OF_DPA_COOKIE, | |
636 | entry->cookie)) | |
637 | return -EMSGSIZE; | |
638 | rocker_tlv_nest_end(desc_info, cmd_info); | |
639 | ||
640 | return 0; | |
641 | } | |
642 | ||
643 | static int | |
644 | ofdpa_cmd_group_tbl_add_l2_interface(struct rocker_desc_info *desc_info, | |
645 | struct ofdpa_group_tbl_entry *entry) | |
646 | { | |
647 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_OUT_PPORT, | |
648 | ROCKER_GROUP_PORT_GET(entry->group_id))) | |
649 | return -EMSGSIZE; | |
650 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_POP_VLAN, | |
651 | entry->l2_interface.pop_vlan)) | |
652 | return -EMSGSIZE; | |
653 | ||
654 | return 0; | |
655 | } | |
656 | ||
657 | static int | |
658 | ofdpa_cmd_group_tbl_add_l2_rewrite(struct rocker_desc_info *desc_info, | |
659 | const struct ofdpa_group_tbl_entry *entry) | |
660 | { | |
661 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER, | |
662 | entry->l2_rewrite.group_id)) | |
663 | return -EMSGSIZE; | |
664 | if (!is_zero_ether_addr(entry->l2_rewrite.eth_src) && | |
665 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC, | |
666 | ETH_ALEN, entry->l2_rewrite.eth_src)) | |
667 | return -EMSGSIZE; | |
668 | if (!is_zero_ether_addr(entry->l2_rewrite.eth_dst) && | |
669 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC, | |
670 | ETH_ALEN, entry->l2_rewrite.eth_dst)) | |
671 | return -EMSGSIZE; | |
672 | if (entry->l2_rewrite.vlan_id && | |
673 | rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, | |
674 | entry->l2_rewrite.vlan_id)) | |
675 | return -EMSGSIZE; | |
676 | ||
677 | return 0; | |
678 | } | |
679 | ||
680 | static int | |
681 | ofdpa_cmd_group_tbl_add_group_ids(struct rocker_desc_info *desc_info, | |
682 | const struct ofdpa_group_tbl_entry *entry) | |
683 | { | |
684 | int i; | |
685 | struct rocker_tlv *group_ids; | |
686 | ||
687 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GROUP_COUNT, | |
688 | entry->group_count)) | |
689 | return -EMSGSIZE; | |
690 | ||
691 | group_ids = rocker_tlv_nest_start(desc_info, | |
692 | ROCKER_TLV_OF_DPA_GROUP_IDS); | |
693 | if (!group_ids) | |
694 | return -EMSGSIZE; | |
695 | ||
696 | for (i = 0; i < entry->group_count; i++) | |
697 | /* Note TLV array is 1-based */ | |
698 | if (rocker_tlv_put_u32(desc_info, i + 1, entry->group_ids[i])) | |
699 | return -EMSGSIZE; | |
700 | ||
701 | rocker_tlv_nest_end(desc_info, group_ids); | |
702 | ||
703 | return 0; | |
704 | } | |
705 | ||
706 | static int | |
707 | ofdpa_cmd_group_tbl_add_l3_unicast(struct rocker_desc_info *desc_info, | |
708 | const struct ofdpa_group_tbl_entry *entry) | |
709 | { | |
710 | if (!is_zero_ether_addr(entry->l3_unicast.eth_src) && | |
711 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC, | |
712 | ETH_ALEN, entry->l3_unicast.eth_src)) | |
713 | return -EMSGSIZE; | |
714 | if (!is_zero_ether_addr(entry->l3_unicast.eth_dst) && | |
715 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC, | |
716 | ETH_ALEN, entry->l3_unicast.eth_dst)) | |
717 | return -EMSGSIZE; | |
718 | if (entry->l3_unicast.vlan_id && | |
719 | rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, | |
720 | entry->l3_unicast.vlan_id)) | |
721 | return -EMSGSIZE; | |
722 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_TTL_CHECK, | |
723 | entry->l3_unicast.ttl_check)) | |
724 | return -EMSGSIZE; | |
725 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER, | |
726 | entry->l3_unicast.group_id)) | |
727 | return -EMSGSIZE; | |
728 | ||
729 | return 0; | |
730 | } | |
731 | ||
732 | static int ofdpa_cmd_group_tbl_add(const struct rocker_port *rocker_port, | |
733 | struct rocker_desc_info *desc_info, | |
734 | void *priv) | |
735 | { | |
736 | struct ofdpa_group_tbl_entry *entry = priv; | |
737 | struct rocker_tlv *cmd_info; | |
738 | int err = 0; | |
739 | ||
740 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd)) | |
741 | return -EMSGSIZE; | |
742 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
743 | if (!cmd_info) | |
744 | return -EMSGSIZE; | |
745 | ||
746 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID, | |
747 | entry->group_id)) | |
748 | return -EMSGSIZE; | |
749 | ||
750 | switch (ROCKER_GROUP_TYPE_GET(entry->group_id)) { | |
751 | case ROCKER_OF_DPA_GROUP_TYPE_L2_INTERFACE: | |
752 | err = ofdpa_cmd_group_tbl_add_l2_interface(desc_info, entry); | |
753 | break; | |
754 | case ROCKER_OF_DPA_GROUP_TYPE_L2_REWRITE: | |
755 | err = ofdpa_cmd_group_tbl_add_l2_rewrite(desc_info, entry); | |
756 | break; | |
757 | case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD: | |
758 | case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST: | |
759 | err = ofdpa_cmd_group_tbl_add_group_ids(desc_info, entry); | |
760 | break; | |
761 | case ROCKER_OF_DPA_GROUP_TYPE_L3_UCAST: | |
762 | err = ofdpa_cmd_group_tbl_add_l3_unicast(desc_info, entry); | |
763 | break; | |
764 | default: | |
765 | err = -ENOTSUPP; | |
766 | break; | |
767 | } | |
768 | ||
769 | if (err) | |
770 | return err; | |
771 | ||
772 | rocker_tlv_nest_end(desc_info, cmd_info); | |
773 | ||
774 | return 0; | |
775 | } | |
776 | ||
777 | static int ofdpa_cmd_group_tbl_del(const struct rocker_port *rocker_port, | |
778 | struct rocker_desc_info *desc_info, | |
779 | void *priv) | |
780 | { | |
781 | const struct ofdpa_group_tbl_entry *entry = priv; | |
782 | struct rocker_tlv *cmd_info; | |
783 | ||
784 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd)) | |
785 | return -EMSGSIZE; | |
786 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
787 | if (!cmd_info) | |
788 | return -EMSGSIZE; | |
789 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID, | |
790 | entry->group_id)) | |
791 | return -EMSGSIZE; | |
792 | rocker_tlv_nest_end(desc_info, cmd_info); | |
793 | ||
794 | return 0; | |
795 | } | |
796 | ||
797 | /*************************************************** | |
798 | * Flow, group, FDB, internal VLAN and neigh tables | |
799 | ***************************************************/ | |
800 | ||
801 | static struct ofdpa_flow_tbl_entry * | |
802 | ofdpa_flow_tbl_find(const struct ofdpa *ofdpa, | |
803 | const struct ofdpa_flow_tbl_entry *match) | |
804 | { | |
805 | struct ofdpa_flow_tbl_entry *found; | |
806 | size_t key_len = match->key_len ? match->key_len : sizeof(found->key); | |
807 | ||
808 | hash_for_each_possible(ofdpa->flow_tbl, found, | |
809 | entry, match->key_crc32) { | |
810 | if (memcmp(&found->key, &match->key, key_len) == 0) | |
811 | return found; | |
812 | } | |
813 | ||
814 | return NULL; | |
815 | } | |
816 | ||
817 | static int ofdpa_flow_tbl_add(struct ofdpa_port *ofdpa_port, | |
818 | struct switchdev_trans *trans, int flags, | |
819 | struct ofdpa_flow_tbl_entry *match) | |
820 | { | |
821 | struct ofdpa *ofdpa = ofdpa_port->ofdpa; | |
822 | struct ofdpa_flow_tbl_entry *found; | |
823 | size_t key_len = match->key_len ? match->key_len : sizeof(found->key); | |
824 | unsigned long lock_flags; | |
825 | ||
826 | match->key_crc32 = crc32(~0, &match->key, key_len); | |
827 | ||
828 | spin_lock_irqsave(&ofdpa->flow_tbl_lock, lock_flags); | |
829 | ||
830 | found = ofdpa_flow_tbl_find(ofdpa, match); | |
831 | ||
832 | if (found) { | |
833 | match->cookie = found->cookie; | |
834 | if (!switchdev_trans_ph_prepare(trans)) | |
835 | hash_del(&found->entry); | |
836 | ofdpa_kfree(trans, found); | |
837 | found = match; | |
838 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_MOD; | |
839 | } else { | |
840 | found = match; | |
841 | found->cookie = ofdpa->flow_tbl_next_cookie++; | |
842 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_ADD; | |
843 | } | |
844 | ||
845 | if (!switchdev_trans_ph_prepare(trans)) | |
846 | hash_add(ofdpa->flow_tbl, &found->entry, found->key_crc32); | |
847 | ||
848 | spin_unlock_irqrestore(&ofdpa->flow_tbl_lock, lock_flags); | |
849 | ||
850 | if (!switchdev_trans_ph_prepare(trans)) | |
851 | return rocker_cmd_exec(ofdpa_port->rocker_port, | |
852 | ofdpa_flags_nowait(flags), | |
853 | ofdpa_cmd_flow_tbl_add, | |
854 | found, NULL, NULL); | |
855 | return 0; | |
856 | } | |
857 | ||
858 | static int ofdpa_flow_tbl_del(struct ofdpa_port *ofdpa_port, | |
859 | struct switchdev_trans *trans, int flags, | |
860 | struct ofdpa_flow_tbl_entry *match) | |
861 | { | |
862 | struct ofdpa *ofdpa = ofdpa_port->ofdpa; | |
863 | struct ofdpa_flow_tbl_entry *found; | |
864 | size_t key_len = match->key_len ? match->key_len : sizeof(found->key); | |
865 | unsigned long lock_flags; | |
866 | int err = 0; | |
867 | ||
868 | match->key_crc32 = crc32(~0, &match->key, key_len); | |
869 | ||
870 | spin_lock_irqsave(&ofdpa->flow_tbl_lock, lock_flags); | |
871 | ||
872 | found = ofdpa_flow_tbl_find(ofdpa, match); | |
873 | ||
874 | if (found) { | |
875 | if (!switchdev_trans_ph_prepare(trans)) | |
876 | hash_del(&found->entry); | |
877 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_DEL; | |
878 | } | |
879 | ||
880 | spin_unlock_irqrestore(&ofdpa->flow_tbl_lock, lock_flags); | |
881 | ||
882 | ofdpa_kfree(trans, match); | |
883 | ||
884 | if (found) { | |
885 | if (!switchdev_trans_ph_prepare(trans)) | |
886 | err = rocker_cmd_exec(ofdpa_port->rocker_port, | |
887 | ofdpa_flags_nowait(flags), | |
888 | ofdpa_cmd_flow_tbl_del, | |
889 | found, NULL, NULL); | |
890 | ofdpa_kfree(trans, found); | |
891 | } | |
892 | ||
893 | return err; | |
894 | } | |
895 | ||
896 | static int ofdpa_flow_tbl_do(struct ofdpa_port *ofdpa_port, | |
897 | struct switchdev_trans *trans, int flags, | |
898 | struct ofdpa_flow_tbl_entry *entry) | |
899 | { | |
900 | if (flags & OFDPA_OP_FLAG_REMOVE) | |
901 | return ofdpa_flow_tbl_del(ofdpa_port, trans, flags, entry); | |
902 | else | |
903 | return ofdpa_flow_tbl_add(ofdpa_port, trans, flags, entry); | |
904 | } | |
905 | ||
906 | static int ofdpa_flow_tbl_ig_port(struct ofdpa_port *ofdpa_port, | |
907 | struct switchdev_trans *trans, int flags, | |
908 | u32 in_pport, u32 in_pport_mask, | |
909 | enum rocker_of_dpa_table_id goto_tbl) | |
910 | { | |
911 | struct ofdpa_flow_tbl_entry *entry; | |
912 | ||
913 | entry = ofdpa_kzalloc(trans, flags, sizeof(*entry)); | |
914 | if (!entry) | |
915 | return -ENOMEM; | |
916 | ||
917 | entry->key.priority = OFDPA_PRIORITY_IG_PORT; | |
918 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT; | |
919 | entry->key.ig_port.in_pport = in_pport; | |
920 | entry->key.ig_port.in_pport_mask = in_pport_mask; | |
921 | entry->key.ig_port.goto_tbl = goto_tbl; | |
922 | ||
923 | return ofdpa_flow_tbl_do(ofdpa_port, trans, flags, entry); | |
924 | } | |
925 | ||
926 | static int ofdpa_flow_tbl_vlan(struct ofdpa_port *ofdpa_port, | |
927 | struct switchdev_trans *trans, int flags, | |
928 | u32 in_pport, __be16 vlan_id, | |
929 | __be16 vlan_id_mask, | |
930 | enum rocker_of_dpa_table_id goto_tbl, | |
931 | bool untagged, __be16 new_vlan_id) | |
932 | { | |
933 | struct ofdpa_flow_tbl_entry *entry; | |
934 | ||
935 | entry = ofdpa_kzalloc(trans, flags, sizeof(*entry)); | |
936 | if (!entry) | |
937 | return -ENOMEM; | |
938 | ||
939 | entry->key.priority = OFDPA_PRIORITY_VLAN; | |
940 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_VLAN; | |
941 | entry->key.vlan.in_pport = in_pport; | |
942 | entry->key.vlan.vlan_id = vlan_id; | |
943 | entry->key.vlan.vlan_id_mask = vlan_id_mask; | |
944 | entry->key.vlan.goto_tbl = goto_tbl; | |
945 | ||
946 | entry->key.vlan.untagged = untagged; | |
947 | entry->key.vlan.new_vlan_id = new_vlan_id; | |
948 | ||
949 | return ofdpa_flow_tbl_do(ofdpa_port, trans, flags, entry); | |
950 | } | |
951 | ||
952 | static int ofdpa_flow_tbl_term_mac(struct ofdpa_port *ofdpa_port, | |
953 | struct switchdev_trans *trans, | |
954 | u32 in_pport, u32 in_pport_mask, | |
955 | __be16 eth_type, const u8 *eth_dst, | |
956 | const u8 *eth_dst_mask, __be16 vlan_id, | |
957 | __be16 vlan_id_mask, bool copy_to_cpu, | |
958 | int flags) | |
959 | { | |
960 | struct ofdpa_flow_tbl_entry *entry; | |
961 | ||
962 | entry = ofdpa_kzalloc(trans, flags, sizeof(*entry)); | |
963 | if (!entry) | |
964 | return -ENOMEM; | |
965 | ||
966 | if (is_multicast_ether_addr(eth_dst)) { | |
967 | entry->key.priority = OFDPA_PRIORITY_TERM_MAC_MCAST; | |
968 | entry->key.term_mac.goto_tbl = | |
969 | ROCKER_OF_DPA_TABLE_ID_MULTICAST_ROUTING; | |
970 | } else { | |
971 | entry->key.priority = OFDPA_PRIORITY_TERM_MAC_UCAST; | |
972 | entry->key.term_mac.goto_tbl = | |
973 | ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING; | |
974 | } | |
975 | ||
976 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC; | |
977 | entry->key.term_mac.in_pport = in_pport; | |
978 | entry->key.term_mac.in_pport_mask = in_pport_mask; | |
979 | entry->key.term_mac.eth_type = eth_type; | |
980 | ether_addr_copy(entry->key.term_mac.eth_dst, eth_dst); | |
981 | ether_addr_copy(entry->key.term_mac.eth_dst_mask, eth_dst_mask); | |
982 | entry->key.term_mac.vlan_id = vlan_id; | |
983 | entry->key.term_mac.vlan_id_mask = vlan_id_mask; | |
984 | entry->key.term_mac.copy_to_cpu = copy_to_cpu; | |
985 | ||
986 | return ofdpa_flow_tbl_do(ofdpa_port, trans, flags, entry); | |
987 | } | |
988 | ||
989 | static int ofdpa_flow_tbl_bridge(struct ofdpa_port *ofdpa_port, | |
990 | struct switchdev_trans *trans, int flags, | |
991 | const u8 *eth_dst, const u8 *eth_dst_mask, | |
992 | __be16 vlan_id, u32 tunnel_id, | |
993 | enum rocker_of_dpa_table_id goto_tbl, | |
994 | u32 group_id, bool copy_to_cpu) | |
995 | { | |
996 | struct ofdpa_flow_tbl_entry *entry; | |
997 | u32 priority; | |
998 | bool vlan_bridging = !!vlan_id; | |
999 | bool dflt = !eth_dst || (eth_dst && eth_dst_mask); | |
1000 | bool wild = false; | |
1001 | ||
1002 | entry = ofdpa_kzalloc(trans, flags, sizeof(*entry)); | |
1003 | if (!entry) | |
1004 | return -ENOMEM; | |
1005 | ||
1006 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_BRIDGING; | |
1007 | ||
1008 | if (eth_dst) { | |
1009 | entry->key.bridge.has_eth_dst = 1; | |
1010 | ether_addr_copy(entry->key.bridge.eth_dst, eth_dst); | |
1011 | } | |
1012 | if (eth_dst_mask) { | |
1013 | entry->key.bridge.has_eth_dst_mask = 1; | |
1014 | ether_addr_copy(entry->key.bridge.eth_dst_mask, eth_dst_mask); | |
1015 | if (!ether_addr_equal(eth_dst_mask, ff_mac)) | |
1016 | wild = true; | |
1017 | } | |
1018 | ||
1019 | priority = OFDPA_PRIORITY_UNKNOWN; | |
1020 | if (vlan_bridging && dflt && wild) | |
1021 | priority = OFDPA_PRIORITY_BRIDGING_VLAN_DFLT_WILD; | |
1022 | else if (vlan_bridging && dflt && !wild) | |
1023 | priority = OFDPA_PRIORITY_BRIDGING_VLAN_DFLT_EXACT; | |
1024 | else if (vlan_bridging && !dflt) | |
1025 | priority = OFDPA_PRIORITY_BRIDGING_VLAN; | |
1026 | else if (!vlan_bridging && dflt && wild) | |
1027 | priority = OFDPA_PRIORITY_BRIDGING_TENANT_DFLT_WILD; | |
1028 | else if (!vlan_bridging && dflt && !wild) | |
1029 | priority = OFDPA_PRIORITY_BRIDGING_TENANT_DFLT_EXACT; | |
1030 | else if (!vlan_bridging && !dflt) | |
1031 | priority = OFDPA_PRIORITY_BRIDGING_TENANT; | |
1032 | ||
1033 | entry->key.priority = priority; | |
1034 | entry->key.bridge.vlan_id = vlan_id; | |
1035 | entry->key.bridge.tunnel_id = tunnel_id; | |
1036 | entry->key.bridge.goto_tbl = goto_tbl; | |
1037 | entry->key.bridge.group_id = group_id; | |
1038 | entry->key.bridge.copy_to_cpu = copy_to_cpu; | |
1039 | ||
1040 | return ofdpa_flow_tbl_do(ofdpa_port, trans, flags, entry); | |
1041 | } | |
1042 | ||
1043 | static int ofdpa_flow_tbl_ucast4_routing(struct ofdpa_port *ofdpa_port, | |
1044 | struct switchdev_trans *trans, | |
1045 | __be16 eth_type, __be32 dst, | |
1046 | __be32 dst_mask, u32 priority, | |
1047 | enum rocker_of_dpa_table_id goto_tbl, | |
936bd486 JP |
1048 | u32 group_id, struct fib_info *fi, |
1049 | int flags) | |
3fbcdbf3 JP |
1050 | { |
1051 | struct ofdpa_flow_tbl_entry *entry; | |
1052 | ||
1053 | entry = ofdpa_kzalloc(trans, flags, sizeof(*entry)); | |
1054 | if (!entry) | |
1055 | return -ENOMEM; | |
1056 | ||
1057 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING; | |
1058 | entry->key.priority = priority; | |
1059 | entry->key.ucast_routing.eth_type = eth_type; | |
1060 | entry->key.ucast_routing.dst4 = dst; | |
1061 | entry->key.ucast_routing.dst4_mask = dst_mask; | |
1062 | entry->key.ucast_routing.goto_tbl = goto_tbl; | |
1063 | entry->key.ucast_routing.group_id = group_id; | |
1064 | entry->key_len = offsetof(struct ofdpa_flow_tbl_key, | |
1065 | ucast_routing.group_id); | |
936bd486 | 1066 | entry->fi = fi; |
3fbcdbf3 JP |
1067 | |
1068 | return ofdpa_flow_tbl_do(ofdpa_port, trans, flags, entry); | |
1069 | } | |
1070 | ||
1071 | static int ofdpa_flow_tbl_acl(struct ofdpa_port *ofdpa_port, | |
1072 | struct switchdev_trans *trans, int flags, | |
1073 | u32 in_pport, u32 in_pport_mask, | |
1074 | const u8 *eth_src, const u8 *eth_src_mask, | |
1075 | const u8 *eth_dst, const u8 *eth_dst_mask, | |
1076 | __be16 eth_type, __be16 vlan_id, | |
1077 | __be16 vlan_id_mask, u8 ip_proto, | |
1078 | u8 ip_proto_mask, u8 ip_tos, u8 ip_tos_mask, | |
1079 | u32 group_id) | |
1080 | { | |
1081 | u32 priority; | |
1082 | struct ofdpa_flow_tbl_entry *entry; | |
1083 | ||
1084 | entry = ofdpa_kzalloc(trans, flags, sizeof(*entry)); | |
1085 | if (!entry) | |
1086 | return -ENOMEM; | |
1087 | ||
1088 | priority = OFDPA_PRIORITY_ACL_NORMAL; | |
1089 | if (eth_dst && eth_dst_mask) { | |
1090 | if (ether_addr_equal(eth_dst_mask, mcast_mac)) | |
1091 | priority = OFDPA_PRIORITY_ACL_DFLT; | |
1092 | else if (is_link_local_ether_addr(eth_dst)) | |
1093 | priority = OFDPA_PRIORITY_ACL_CTRL; | |
1094 | } | |
1095 | ||
1096 | entry->key.priority = priority; | |
1097 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_ACL_POLICY; | |
1098 | entry->key.acl.in_pport = in_pport; | |
1099 | entry->key.acl.in_pport_mask = in_pport_mask; | |
1100 | ||
1101 | if (eth_src) | |
1102 | ether_addr_copy(entry->key.acl.eth_src, eth_src); | |
1103 | if (eth_src_mask) | |
1104 | ether_addr_copy(entry->key.acl.eth_src_mask, eth_src_mask); | |
1105 | if (eth_dst) | |
1106 | ether_addr_copy(entry->key.acl.eth_dst, eth_dst); | |
1107 | if (eth_dst_mask) | |
1108 | ether_addr_copy(entry->key.acl.eth_dst_mask, eth_dst_mask); | |
1109 | ||
1110 | entry->key.acl.eth_type = eth_type; | |
1111 | entry->key.acl.vlan_id = vlan_id; | |
1112 | entry->key.acl.vlan_id_mask = vlan_id_mask; | |
1113 | entry->key.acl.ip_proto = ip_proto; | |
1114 | entry->key.acl.ip_proto_mask = ip_proto_mask; | |
1115 | entry->key.acl.ip_tos = ip_tos; | |
1116 | entry->key.acl.ip_tos_mask = ip_tos_mask; | |
1117 | entry->key.acl.group_id = group_id; | |
1118 | ||
1119 | return ofdpa_flow_tbl_do(ofdpa_port, trans, flags, entry); | |
1120 | } | |
1121 | ||
1122 | static struct ofdpa_group_tbl_entry * | |
1123 | ofdpa_group_tbl_find(const struct ofdpa *ofdpa, | |
1124 | const struct ofdpa_group_tbl_entry *match) | |
1125 | { | |
1126 | struct ofdpa_group_tbl_entry *found; | |
1127 | ||
1128 | hash_for_each_possible(ofdpa->group_tbl, found, | |
1129 | entry, match->group_id) { | |
1130 | if (found->group_id == match->group_id) | |
1131 | return found; | |
1132 | } | |
1133 | ||
1134 | return NULL; | |
1135 | } | |
1136 | ||
1137 | static void ofdpa_group_tbl_entry_free(struct switchdev_trans *trans, | |
1138 | struct ofdpa_group_tbl_entry *entry) | |
1139 | { | |
1140 | switch (ROCKER_GROUP_TYPE_GET(entry->group_id)) { | |
1141 | case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD: | |
1142 | case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST: | |
1143 | ofdpa_kfree(trans, entry->group_ids); | |
1144 | break; | |
1145 | default: | |
1146 | break; | |
1147 | } | |
1148 | ofdpa_kfree(trans, entry); | |
1149 | } | |
1150 | ||
1151 | static int ofdpa_group_tbl_add(struct ofdpa_port *ofdpa_port, | |
1152 | struct switchdev_trans *trans, int flags, | |
1153 | struct ofdpa_group_tbl_entry *match) | |
1154 | { | |
1155 | struct ofdpa *ofdpa = ofdpa_port->ofdpa; | |
1156 | struct ofdpa_group_tbl_entry *found; | |
1157 | unsigned long lock_flags; | |
1158 | ||
1159 | spin_lock_irqsave(&ofdpa->group_tbl_lock, lock_flags); | |
1160 | ||
1161 | found = ofdpa_group_tbl_find(ofdpa, match); | |
1162 | ||
1163 | if (found) { | |
1164 | if (!switchdev_trans_ph_prepare(trans)) | |
1165 | hash_del(&found->entry); | |
1166 | ofdpa_group_tbl_entry_free(trans, found); | |
1167 | found = match; | |
1168 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_MOD; | |
1169 | } else { | |
1170 | found = match; | |
1171 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_ADD; | |
1172 | } | |
1173 | ||
1174 | if (!switchdev_trans_ph_prepare(trans)) | |
1175 | hash_add(ofdpa->group_tbl, &found->entry, found->group_id); | |
1176 | ||
1177 | spin_unlock_irqrestore(&ofdpa->group_tbl_lock, lock_flags); | |
1178 | ||
1179 | if (!switchdev_trans_ph_prepare(trans)) | |
1180 | return rocker_cmd_exec(ofdpa_port->rocker_port, | |
1181 | ofdpa_flags_nowait(flags), | |
1182 | ofdpa_cmd_group_tbl_add, | |
1183 | found, NULL, NULL); | |
1184 | return 0; | |
1185 | } | |
1186 | ||
1187 | static int ofdpa_group_tbl_del(struct ofdpa_port *ofdpa_port, | |
1188 | struct switchdev_trans *trans, int flags, | |
1189 | struct ofdpa_group_tbl_entry *match) | |
1190 | { | |
1191 | struct ofdpa *ofdpa = ofdpa_port->ofdpa; | |
1192 | struct ofdpa_group_tbl_entry *found; | |
1193 | unsigned long lock_flags; | |
1194 | int err = 0; | |
1195 | ||
1196 | spin_lock_irqsave(&ofdpa->group_tbl_lock, lock_flags); | |
1197 | ||
1198 | found = ofdpa_group_tbl_find(ofdpa, match); | |
1199 | ||
1200 | if (found) { | |
1201 | if (!switchdev_trans_ph_prepare(trans)) | |
1202 | hash_del(&found->entry); | |
1203 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_DEL; | |
1204 | } | |
1205 | ||
1206 | spin_unlock_irqrestore(&ofdpa->group_tbl_lock, lock_flags); | |
1207 | ||
1208 | ofdpa_group_tbl_entry_free(trans, match); | |
1209 | ||
1210 | if (found) { | |
1211 | if (!switchdev_trans_ph_prepare(trans)) | |
1212 | err = rocker_cmd_exec(ofdpa_port->rocker_port, | |
1213 | ofdpa_flags_nowait(flags), | |
1214 | ofdpa_cmd_group_tbl_del, | |
1215 | found, NULL, NULL); | |
1216 | ofdpa_group_tbl_entry_free(trans, found); | |
1217 | } | |
1218 | ||
1219 | return err; | |
1220 | } | |
1221 | ||
1222 | static int ofdpa_group_tbl_do(struct ofdpa_port *ofdpa_port, | |
1223 | struct switchdev_trans *trans, int flags, | |
1224 | struct ofdpa_group_tbl_entry *entry) | |
1225 | { | |
1226 | if (flags & OFDPA_OP_FLAG_REMOVE) | |
1227 | return ofdpa_group_tbl_del(ofdpa_port, trans, flags, entry); | |
1228 | else | |
1229 | return ofdpa_group_tbl_add(ofdpa_port, trans, flags, entry); | |
1230 | } | |
1231 | ||
1232 | static int ofdpa_group_l2_interface(struct ofdpa_port *ofdpa_port, | |
1233 | struct switchdev_trans *trans, int flags, | |
1234 | __be16 vlan_id, u32 out_pport, | |
1235 | int pop_vlan) | |
1236 | { | |
1237 | struct ofdpa_group_tbl_entry *entry; | |
1238 | ||
1239 | entry = ofdpa_kzalloc(trans, flags, sizeof(*entry)); | |
1240 | if (!entry) | |
1241 | return -ENOMEM; | |
1242 | ||
1243 | entry->group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport); | |
1244 | entry->l2_interface.pop_vlan = pop_vlan; | |
1245 | ||
1246 | return ofdpa_group_tbl_do(ofdpa_port, trans, flags, entry); | |
1247 | } | |
1248 | ||
1249 | static int ofdpa_group_l2_fan_out(struct ofdpa_port *ofdpa_port, | |
1250 | struct switchdev_trans *trans, | |
1251 | int flags, u8 group_count, | |
1252 | const u32 *group_ids, u32 group_id) | |
1253 | { | |
1254 | struct ofdpa_group_tbl_entry *entry; | |
1255 | ||
1256 | entry = ofdpa_kzalloc(trans, flags, sizeof(*entry)); | |
1257 | if (!entry) | |
1258 | return -ENOMEM; | |
1259 | ||
1260 | entry->group_id = group_id; | |
1261 | entry->group_count = group_count; | |
1262 | ||
1263 | entry->group_ids = ofdpa_kcalloc(trans, flags, | |
1264 | group_count, sizeof(u32)); | |
1265 | if (!entry->group_ids) { | |
1266 | ofdpa_kfree(trans, entry); | |
1267 | return -ENOMEM; | |
1268 | } | |
1269 | memcpy(entry->group_ids, group_ids, group_count * sizeof(u32)); | |
1270 | ||
1271 | return ofdpa_group_tbl_do(ofdpa_port, trans, flags, entry); | |
1272 | } | |
1273 | ||
1274 | static int ofdpa_group_l2_flood(struct ofdpa_port *ofdpa_port, | |
1275 | struct switchdev_trans *trans, int flags, | |
1276 | __be16 vlan_id, u8 group_count, | |
1277 | const u32 *group_ids, u32 group_id) | |
1278 | { | |
1279 | return ofdpa_group_l2_fan_out(ofdpa_port, trans, flags, | |
1280 | group_count, group_ids, | |
1281 | group_id); | |
1282 | } | |
1283 | ||
1284 | static int ofdpa_group_l3_unicast(struct ofdpa_port *ofdpa_port, | |
1285 | struct switchdev_trans *trans, int flags, | |
1286 | u32 index, const u8 *src_mac, const u8 *dst_mac, | |
1287 | __be16 vlan_id, bool ttl_check, u32 pport) | |
1288 | { | |
1289 | struct ofdpa_group_tbl_entry *entry; | |
1290 | ||
1291 | entry = ofdpa_kzalloc(trans, flags, sizeof(*entry)); | |
1292 | if (!entry) | |
1293 | return -ENOMEM; | |
1294 | ||
1295 | entry->group_id = ROCKER_GROUP_L3_UNICAST(index); | |
1296 | if (src_mac) | |
1297 | ether_addr_copy(entry->l3_unicast.eth_src, src_mac); | |
1298 | if (dst_mac) | |
1299 | ether_addr_copy(entry->l3_unicast.eth_dst, dst_mac); | |
1300 | entry->l3_unicast.vlan_id = vlan_id; | |
1301 | entry->l3_unicast.ttl_check = ttl_check; | |
1302 | entry->l3_unicast.group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, pport); | |
1303 | ||
1304 | return ofdpa_group_tbl_do(ofdpa_port, trans, flags, entry); | |
1305 | } | |
1306 | ||
1307 | static struct ofdpa_neigh_tbl_entry * | |
1308 | ofdpa_neigh_tbl_find(const struct ofdpa *ofdpa, __be32 ip_addr) | |
1309 | { | |
1310 | struct ofdpa_neigh_tbl_entry *found; | |
1311 | ||
1312 | hash_for_each_possible(ofdpa->neigh_tbl, found, | |
1313 | entry, be32_to_cpu(ip_addr)) | |
1314 | if (found->ip_addr == ip_addr) | |
1315 | return found; | |
1316 | ||
1317 | return NULL; | |
1318 | } | |
1319 | ||
1320 | static void ofdpa_neigh_add(struct ofdpa *ofdpa, | |
1321 | struct switchdev_trans *trans, | |
1322 | struct ofdpa_neigh_tbl_entry *entry) | |
1323 | { | |
1324 | if (!switchdev_trans_ph_commit(trans)) | |
1325 | entry->index = ofdpa->neigh_tbl_next_index++; | |
1326 | if (switchdev_trans_ph_prepare(trans)) | |
1327 | return; | |
1328 | entry->ref_count++; | |
1329 | hash_add(ofdpa->neigh_tbl, &entry->entry, | |
1330 | be32_to_cpu(entry->ip_addr)); | |
1331 | } | |
1332 | ||
1333 | static void ofdpa_neigh_del(struct switchdev_trans *trans, | |
1334 | struct ofdpa_neigh_tbl_entry *entry) | |
1335 | { | |
1336 | if (switchdev_trans_ph_prepare(trans)) | |
1337 | return; | |
1338 | if (--entry->ref_count == 0) { | |
1339 | hash_del(&entry->entry); | |
1340 | ofdpa_kfree(trans, entry); | |
1341 | } | |
1342 | } | |
1343 | ||
1344 | static void ofdpa_neigh_update(struct ofdpa_neigh_tbl_entry *entry, | |
1345 | struct switchdev_trans *trans, | |
1346 | const u8 *eth_dst, bool ttl_check) | |
1347 | { | |
1348 | if (eth_dst) { | |
1349 | ether_addr_copy(entry->eth_dst, eth_dst); | |
1350 | entry->ttl_check = ttl_check; | |
1351 | } else if (!switchdev_trans_ph_prepare(trans)) { | |
1352 | entry->ref_count++; | |
1353 | } | |
1354 | } | |
1355 | ||
1356 | static int ofdpa_port_ipv4_neigh(struct ofdpa_port *ofdpa_port, | |
1357 | struct switchdev_trans *trans, | |
1358 | int flags, __be32 ip_addr, const u8 *eth_dst) | |
1359 | { | |
1360 | struct ofdpa *ofdpa = ofdpa_port->ofdpa; | |
1361 | struct ofdpa_neigh_tbl_entry *entry; | |
1362 | struct ofdpa_neigh_tbl_entry *found; | |
1363 | unsigned long lock_flags; | |
1364 | __be16 eth_type = htons(ETH_P_IP); | |
1365 | enum rocker_of_dpa_table_id goto_tbl = | |
1366 | ROCKER_OF_DPA_TABLE_ID_ACL_POLICY; | |
1367 | u32 group_id; | |
1368 | u32 priority = 0; | |
1369 | bool adding = !(flags & OFDPA_OP_FLAG_REMOVE); | |
1370 | bool updating; | |
1371 | bool removing; | |
1372 | int err = 0; | |
1373 | ||
1374 | entry = ofdpa_kzalloc(trans, flags, sizeof(*entry)); | |
1375 | if (!entry) | |
1376 | return -ENOMEM; | |
1377 | ||
1378 | spin_lock_irqsave(&ofdpa->neigh_tbl_lock, lock_flags); | |
1379 | ||
1380 | found = ofdpa_neigh_tbl_find(ofdpa, ip_addr); | |
1381 | ||
1382 | updating = found && adding; | |
1383 | removing = found && !adding; | |
1384 | adding = !found && adding; | |
1385 | ||
1386 | if (adding) { | |
1387 | entry->ip_addr = ip_addr; | |
1388 | entry->dev = ofdpa_port->dev; | |
1389 | ether_addr_copy(entry->eth_dst, eth_dst); | |
1390 | entry->ttl_check = true; | |
1391 | ofdpa_neigh_add(ofdpa, trans, entry); | |
1392 | } else if (removing) { | |
1393 | memcpy(entry, found, sizeof(*entry)); | |
1394 | ofdpa_neigh_del(trans, found); | |
1395 | } else if (updating) { | |
1396 | ofdpa_neigh_update(found, trans, eth_dst, true); | |
1397 | memcpy(entry, found, sizeof(*entry)); | |
1398 | } else { | |
1399 | err = -ENOENT; | |
1400 | } | |
1401 | ||
1402 | spin_unlock_irqrestore(&ofdpa->neigh_tbl_lock, lock_flags); | |
1403 | ||
1404 | if (err) | |
1405 | goto err_out; | |
1406 | ||
1407 | /* For each active neighbor, we have an L3 unicast group and | |
1408 | * a /32 route to the neighbor, which uses the L3 unicast | |
1409 | * group. The L3 unicast group can also be referred to by | |
1410 | * other routes' nexthops. | |
1411 | */ | |
1412 | ||
1413 | err = ofdpa_group_l3_unicast(ofdpa_port, trans, flags, | |
1414 | entry->index, | |
1415 | ofdpa_port->dev->dev_addr, | |
1416 | entry->eth_dst, | |
1417 | ofdpa_port->internal_vlan_id, | |
1418 | entry->ttl_check, | |
1419 | ofdpa_port->pport); | |
1420 | if (err) { | |
1421 | netdev_err(ofdpa_port->dev, "Error (%d) L3 unicast group index %d\n", | |
1422 | err, entry->index); | |
1423 | goto err_out; | |
1424 | } | |
1425 | ||
1426 | if (adding || removing) { | |
1427 | group_id = ROCKER_GROUP_L3_UNICAST(entry->index); | |
1428 | err = ofdpa_flow_tbl_ucast4_routing(ofdpa_port, trans, | |
1429 | eth_type, ip_addr, | |
1430 | inet_make_mask(32), | |
1431 | priority, goto_tbl, | |
936bd486 | 1432 | group_id, NULL, flags); |
3fbcdbf3 JP |
1433 | |
1434 | if (err) | |
1435 | netdev_err(ofdpa_port->dev, "Error (%d) /32 unicast route %pI4 group 0x%08x\n", | |
1436 | err, &entry->ip_addr, group_id); | |
1437 | } | |
1438 | ||
1439 | err_out: | |
1440 | if (!adding) | |
1441 | ofdpa_kfree(trans, entry); | |
1442 | ||
1443 | return err; | |
1444 | } | |
1445 | ||
1446 | static int ofdpa_port_ipv4_resolve(struct ofdpa_port *ofdpa_port, | |
1447 | struct switchdev_trans *trans, | |
1448 | __be32 ip_addr) | |
1449 | { | |
1450 | struct net_device *dev = ofdpa_port->dev; | |
1451 | struct neighbour *n = __ipv4_neigh_lookup(dev, (__force u32)ip_addr); | |
1452 | int err = 0; | |
1453 | ||
1454 | if (!n) { | |
1455 | n = neigh_create(&arp_tbl, &ip_addr, dev); | |
1456 | if (IS_ERR(n)) | |
f73e0c24 | 1457 | return PTR_ERR(n); |
3fbcdbf3 JP |
1458 | } |
1459 | ||
1460 | /* If the neigh is already resolved, then go ahead and | |
1461 | * install the entry, otherwise start the ARP process to | |
1462 | * resolve the neigh. | |
1463 | */ | |
1464 | ||
1465 | if (n->nud_state & NUD_VALID) | |
1466 | err = ofdpa_port_ipv4_neigh(ofdpa_port, trans, 0, | |
1467 | ip_addr, n->ha); | |
1468 | else | |
1469 | neigh_event_send(n, NULL); | |
1470 | ||
1471 | neigh_release(n); | |
1472 | return err; | |
1473 | } | |
1474 | ||
1475 | static int ofdpa_port_ipv4_nh(struct ofdpa_port *ofdpa_port, | |
1476 | struct switchdev_trans *trans, int flags, | |
1477 | __be32 ip_addr, u32 *index) | |
1478 | { | |
1479 | struct ofdpa *ofdpa = ofdpa_port->ofdpa; | |
1480 | struct ofdpa_neigh_tbl_entry *entry; | |
1481 | struct ofdpa_neigh_tbl_entry *found; | |
1482 | unsigned long lock_flags; | |
1483 | bool adding = !(flags & OFDPA_OP_FLAG_REMOVE); | |
1484 | bool updating; | |
1485 | bool removing; | |
1486 | bool resolved = true; | |
1487 | int err = 0; | |
1488 | ||
1489 | entry = ofdpa_kzalloc(trans, flags, sizeof(*entry)); | |
1490 | if (!entry) | |
1491 | return -ENOMEM; | |
1492 | ||
1493 | spin_lock_irqsave(&ofdpa->neigh_tbl_lock, lock_flags); | |
1494 | ||
1495 | found = ofdpa_neigh_tbl_find(ofdpa, ip_addr); | |
3fbcdbf3 JP |
1496 | |
1497 | updating = found && adding; | |
1498 | removing = found && !adding; | |
1499 | adding = !found && adding; | |
1500 | ||
1501 | if (adding) { | |
1502 | entry->ip_addr = ip_addr; | |
1503 | entry->dev = ofdpa_port->dev; | |
1504 | ofdpa_neigh_add(ofdpa, trans, entry); | |
1505 | *index = entry->index; | |
1506 | resolved = false; | |
1507 | } else if (removing) { | |
ecf244f7 | 1508 | *index = found->index; |
acb4b7df | 1509 | ofdpa_neigh_del(trans, found); |
3fbcdbf3 JP |
1510 | } else if (updating) { |
1511 | ofdpa_neigh_update(found, trans, NULL, false); | |
1512 | resolved = !is_zero_ether_addr(found->eth_dst); | |
ecf244f7 | 1513 | *index = found->index; |
3fbcdbf3 JP |
1514 | } else { |
1515 | err = -ENOENT; | |
1516 | } | |
1517 | ||
1518 | spin_unlock_irqrestore(&ofdpa->neigh_tbl_lock, lock_flags); | |
1519 | ||
1520 | if (!adding) | |
1521 | ofdpa_kfree(trans, entry); | |
1522 | ||
1523 | if (err) | |
1524 | return err; | |
1525 | ||
1526 | /* Resolved means neigh ip_addr is resolved to neigh mac. */ | |
1527 | ||
1528 | if (!resolved) | |
1529 | err = ofdpa_port_ipv4_resolve(ofdpa_port, trans, ip_addr); | |
1530 | ||
1531 | return err; | |
1532 | } | |
1533 | ||
1534 | static struct ofdpa_port *ofdpa_port_get(const struct ofdpa *ofdpa, | |
1535 | int port_index) | |
1536 | { | |
1537 | struct rocker_port *rocker_port; | |
1538 | ||
1539 | rocker_port = ofdpa->rocker->ports[port_index]; | |
1540 | return rocker_port ? rocker_port->wpriv : NULL; | |
1541 | } | |
1542 | ||
1543 | static int ofdpa_port_vlan_flood_group(struct ofdpa_port *ofdpa_port, | |
1544 | struct switchdev_trans *trans, | |
1545 | int flags, __be16 vlan_id) | |
1546 | { | |
1547 | struct ofdpa_port *p; | |
1548 | const struct ofdpa *ofdpa = ofdpa_port->ofdpa; | |
1549 | unsigned int port_count = ofdpa->rocker->port_count; | |
1550 | u32 group_id = ROCKER_GROUP_L2_FLOOD(vlan_id, 0); | |
1551 | u32 *group_ids; | |
1552 | u8 group_count = 0; | |
1553 | int err = 0; | |
1554 | int i; | |
1555 | ||
1556 | group_ids = ofdpa_kcalloc(trans, flags, port_count, sizeof(u32)); | |
1557 | if (!group_ids) | |
1558 | return -ENOMEM; | |
1559 | ||
1560 | /* Adjust the flood group for this VLAN. The flood group | |
1561 | * references an L2 interface group for each port in this | |
1562 | * VLAN. | |
1563 | */ | |
1564 | ||
1565 | for (i = 0; i < port_count; i++) { | |
1566 | p = ofdpa_port_get(ofdpa, i); | |
1567 | if (!p) | |
1568 | continue; | |
1569 | if (!ofdpa_port_is_bridged(p)) | |
1570 | continue; | |
1571 | if (test_bit(ntohs(vlan_id), p->vlan_bitmap)) { | |
1572 | group_ids[group_count++] = | |
1573 | ROCKER_GROUP_L2_INTERFACE(vlan_id, p->pport); | |
1574 | } | |
1575 | } | |
1576 | ||
1577 | /* If there are no bridged ports in this VLAN, we're done */ | |
1578 | if (group_count == 0) | |
1579 | goto no_ports_in_vlan; | |
1580 | ||
1581 | err = ofdpa_group_l2_flood(ofdpa_port, trans, flags, vlan_id, | |
1582 | group_count, group_ids, group_id); | |
1583 | if (err) | |
1584 | netdev_err(ofdpa_port->dev, "Error (%d) port VLAN l2 flood group\n", err); | |
1585 | ||
1586 | no_ports_in_vlan: | |
1587 | ofdpa_kfree(trans, group_ids); | |
1588 | return err; | |
1589 | } | |
1590 | ||
1591 | static int ofdpa_port_vlan_l2_groups(struct ofdpa_port *ofdpa_port, | |
1592 | struct switchdev_trans *trans, int flags, | |
1593 | __be16 vlan_id, bool pop_vlan) | |
1594 | { | |
1595 | const struct ofdpa *ofdpa = ofdpa_port->ofdpa; | |
1596 | unsigned int port_count = ofdpa->rocker->port_count; | |
1597 | struct ofdpa_port *p; | |
1598 | bool adding = !(flags & OFDPA_OP_FLAG_REMOVE); | |
1599 | u32 out_pport; | |
1600 | int ref = 0; | |
1601 | int err; | |
1602 | int i; | |
1603 | ||
1604 | /* An L2 interface group for this port in this VLAN, but | |
1605 | * only when port STP state is LEARNING|FORWARDING. | |
1606 | */ | |
1607 | ||
1608 | if (ofdpa_port->stp_state == BR_STATE_LEARNING || | |
1609 | ofdpa_port->stp_state == BR_STATE_FORWARDING) { | |
1610 | out_pport = ofdpa_port->pport; | |
1611 | err = ofdpa_group_l2_interface(ofdpa_port, trans, flags, | |
1612 | vlan_id, out_pport, pop_vlan); | |
1613 | if (err) { | |
1614 | netdev_err(ofdpa_port->dev, "Error (%d) port VLAN l2 group for pport %d\n", | |
1615 | err, out_pport); | |
1616 | return err; | |
1617 | } | |
1618 | } | |
1619 | ||
1620 | /* An L2 interface group for this VLAN to CPU port. | |
1621 | * Add when first port joins this VLAN and destroy when | |
1622 | * last port leaves this VLAN. | |
1623 | */ | |
1624 | ||
1625 | for (i = 0; i < port_count; i++) { | |
1626 | p = ofdpa_port_get(ofdpa, i); | |
1627 | if (p && test_bit(ntohs(vlan_id), p->vlan_bitmap)) | |
1628 | ref++; | |
1629 | } | |
1630 | ||
1631 | if ((!adding || ref != 1) && (adding || ref != 0)) | |
1632 | return 0; | |
1633 | ||
1634 | out_pport = 0; | |
1635 | err = ofdpa_group_l2_interface(ofdpa_port, trans, flags, | |
1636 | vlan_id, out_pport, pop_vlan); | |
1637 | if (err) { | |
1638 | netdev_err(ofdpa_port->dev, "Error (%d) port VLAN l2 group for CPU port\n", err); | |
1639 | return err; | |
1640 | } | |
1641 | ||
1642 | return 0; | |
1643 | } | |
1644 | ||
1645 | static struct ofdpa_ctrl { | |
1646 | const u8 *eth_dst; | |
1647 | const u8 *eth_dst_mask; | |
1648 | __be16 eth_type; | |
1649 | bool acl; | |
1650 | bool bridge; | |
1651 | bool term; | |
1652 | bool copy_to_cpu; | |
1653 | } ofdpa_ctrls[] = { | |
1654 | [OFDPA_CTRL_LINK_LOCAL_MCAST] = { | |
1655 | /* pass link local multicast pkts up to CPU for filtering */ | |
1656 | .eth_dst = ll_mac, | |
1657 | .eth_dst_mask = ll_mask, | |
1658 | .acl = true, | |
1659 | }, | |
1660 | [OFDPA_CTRL_LOCAL_ARP] = { | |
1661 | /* pass local ARP pkts up to CPU */ | |
1662 | .eth_dst = zero_mac, | |
1663 | .eth_dst_mask = zero_mac, | |
1664 | .eth_type = htons(ETH_P_ARP), | |
1665 | .acl = true, | |
1666 | }, | |
1667 | [OFDPA_CTRL_IPV4_MCAST] = { | |
1668 | /* pass IPv4 mcast pkts up to CPU, RFC 1112 */ | |
1669 | .eth_dst = ipv4_mcast, | |
1670 | .eth_dst_mask = ipv4_mask, | |
1671 | .eth_type = htons(ETH_P_IP), | |
1672 | .term = true, | |
1673 | .copy_to_cpu = true, | |
1674 | }, | |
1675 | [OFDPA_CTRL_IPV6_MCAST] = { | |
1676 | /* pass IPv6 mcast pkts up to CPU, RFC 2464 */ | |
1677 | .eth_dst = ipv6_mcast, | |
1678 | .eth_dst_mask = ipv6_mask, | |
1679 | .eth_type = htons(ETH_P_IPV6), | |
1680 | .term = true, | |
1681 | .copy_to_cpu = true, | |
1682 | }, | |
1683 | [OFDPA_CTRL_DFLT_BRIDGING] = { | |
1684 | /* flood any pkts on vlan */ | |
1685 | .bridge = true, | |
1686 | .copy_to_cpu = true, | |
1687 | }, | |
1688 | [OFDPA_CTRL_DFLT_OVS] = { | |
1689 | /* pass all pkts up to CPU */ | |
1690 | .eth_dst = zero_mac, | |
1691 | .eth_dst_mask = zero_mac, | |
1692 | .acl = true, | |
1693 | }, | |
1694 | }; | |
1695 | ||
1696 | static int ofdpa_port_ctrl_vlan_acl(struct ofdpa_port *ofdpa_port, | |
1697 | struct switchdev_trans *trans, int flags, | |
1698 | const struct ofdpa_ctrl *ctrl, __be16 vlan_id) | |
1699 | { | |
1700 | u32 in_pport = ofdpa_port->pport; | |
1701 | u32 in_pport_mask = 0xffffffff; | |
1702 | u32 out_pport = 0; | |
1703 | const u8 *eth_src = NULL; | |
1704 | const u8 *eth_src_mask = NULL; | |
1705 | __be16 vlan_id_mask = htons(0xffff); | |
1706 | u8 ip_proto = 0; | |
1707 | u8 ip_proto_mask = 0; | |
1708 | u8 ip_tos = 0; | |
1709 | u8 ip_tos_mask = 0; | |
1710 | u32 group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport); | |
1711 | int err; | |
1712 | ||
1713 | err = ofdpa_flow_tbl_acl(ofdpa_port, trans, flags, | |
1714 | in_pport, in_pport_mask, | |
1715 | eth_src, eth_src_mask, | |
1716 | ctrl->eth_dst, ctrl->eth_dst_mask, | |
1717 | ctrl->eth_type, | |
1718 | vlan_id, vlan_id_mask, | |
1719 | ip_proto, ip_proto_mask, | |
1720 | ip_tos, ip_tos_mask, | |
1721 | group_id); | |
1722 | ||
1723 | if (err) | |
1724 | netdev_err(ofdpa_port->dev, "Error (%d) ctrl ACL\n", err); | |
1725 | ||
1726 | return err; | |
1727 | } | |
1728 | ||
1729 | static int ofdpa_port_ctrl_vlan_bridge(struct ofdpa_port *ofdpa_port, | |
1730 | struct switchdev_trans *trans, | |
1731 | int flags, | |
1732 | const struct ofdpa_ctrl *ctrl, | |
1733 | __be16 vlan_id) | |
1734 | { | |
1735 | enum rocker_of_dpa_table_id goto_tbl = | |
1736 | ROCKER_OF_DPA_TABLE_ID_ACL_POLICY; | |
1737 | u32 group_id = ROCKER_GROUP_L2_FLOOD(vlan_id, 0); | |
1738 | u32 tunnel_id = 0; | |
1739 | int err; | |
1740 | ||
1741 | if (!ofdpa_port_is_bridged(ofdpa_port)) | |
1742 | return 0; | |
1743 | ||
1744 | err = ofdpa_flow_tbl_bridge(ofdpa_port, trans, flags, | |
1745 | ctrl->eth_dst, ctrl->eth_dst_mask, | |
1746 | vlan_id, tunnel_id, | |
1747 | goto_tbl, group_id, ctrl->copy_to_cpu); | |
1748 | ||
1749 | if (err) | |
1750 | netdev_err(ofdpa_port->dev, "Error (%d) ctrl FLOOD\n", err); | |
1751 | ||
1752 | return err; | |
1753 | } | |
1754 | ||
1755 | static int ofdpa_port_ctrl_vlan_term(struct ofdpa_port *ofdpa_port, | |
1756 | struct switchdev_trans *trans, int flags, | |
1757 | const struct ofdpa_ctrl *ctrl, __be16 vlan_id) | |
1758 | { | |
1759 | u32 in_pport_mask = 0xffffffff; | |
1760 | __be16 vlan_id_mask = htons(0xffff); | |
1761 | int err; | |
1762 | ||
1763 | if (ntohs(vlan_id) == 0) | |
1764 | vlan_id = ofdpa_port->internal_vlan_id; | |
1765 | ||
1766 | err = ofdpa_flow_tbl_term_mac(ofdpa_port, trans, | |
1767 | ofdpa_port->pport, in_pport_mask, | |
1768 | ctrl->eth_type, ctrl->eth_dst, | |
1769 | ctrl->eth_dst_mask, vlan_id, | |
1770 | vlan_id_mask, ctrl->copy_to_cpu, | |
1771 | flags); | |
1772 | ||
1773 | if (err) | |
1774 | netdev_err(ofdpa_port->dev, "Error (%d) ctrl term\n", err); | |
1775 | ||
1776 | return err; | |
1777 | } | |
1778 | ||
1779 | static int ofdpa_port_ctrl_vlan(struct ofdpa_port *ofdpa_port, | |
1780 | struct switchdev_trans *trans, int flags, | |
1781 | const struct ofdpa_ctrl *ctrl, __be16 vlan_id) | |
1782 | { | |
1783 | if (ctrl->acl) | |
1784 | return ofdpa_port_ctrl_vlan_acl(ofdpa_port, trans, flags, | |
1785 | ctrl, vlan_id); | |
1786 | if (ctrl->bridge) | |
1787 | return ofdpa_port_ctrl_vlan_bridge(ofdpa_port, trans, flags, | |
1788 | ctrl, vlan_id); | |
1789 | ||
1790 | if (ctrl->term) | |
1791 | return ofdpa_port_ctrl_vlan_term(ofdpa_port, trans, flags, | |
1792 | ctrl, vlan_id); | |
1793 | ||
1794 | return -EOPNOTSUPP; | |
1795 | } | |
1796 | ||
1797 | static int ofdpa_port_ctrl_vlan_add(struct ofdpa_port *ofdpa_port, | |
1798 | struct switchdev_trans *trans, int flags, | |
1799 | __be16 vlan_id) | |
1800 | { | |
1801 | int err = 0; | |
1802 | int i; | |
1803 | ||
1804 | for (i = 0; i < OFDPA_CTRL_MAX; i++) { | |
1805 | if (ofdpa_port->ctrls[i]) { | |
1806 | err = ofdpa_port_ctrl_vlan(ofdpa_port, trans, flags, | |
1807 | &ofdpa_ctrls[i], vlan_id); | |
1808 | if (err) | |
1809 | return err; | |
1810 | } | |
1811 | } | |
1812 | ||
1813 | return err; | |
1814 | } | |
1815 | ||
1816 | static int ofdpa_port_ctrl(struct ofdpa_port *ofdpa_port, | |
1817 | struct switchdev_trans *trans, int flags, | |
1818 | const struct ofdpa_ctrl *ctrl) | |
1819 | { | |
1820 | u16 vid; | |
1821 | int err = 0; | |
1822 | ||
1823 | for (vid = 1; vid < VLAN_N_VID; vid++) { | |
1824 | if (!test_bit(vid, ofdpa_port->vlan_bitmap)) | |
1825 | continue; | |
1826 | err = ofdpa_port_ctrl_vlan(ofdpa_port, trans, flags, | |
1827 | ctrl, htons(vid)); | |
1828 | if (err) | |
1829 | break; | |
1830 | } | |
1831 | ||
1832 | return err; | |
1833 | } | |
1834 | ||
1835 | static int ofdpa_port_vlan(struct ofdpa_port *ofdpa_port, | |
1836 | struct switchdev_trans *trans, int flags, u16 vid) | |
1837 | { | |
1838 | enum rocker_of_dpa_table_id goto_tbl = | |
1839 | ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC; | |
1840 | u32 in_pport = ofdpa_port->pport; | |
1841 | __be16 vlan_id = htons(vid); | |
1842 | __be16 vlan_id_mask = htons(0xffff); | |
1843 | __be16 internal_vlan_id; | |
1844 | bool untagged; | |
1845 | bool adding = !(flags & OFDPA_OP_FLAG_REMOVE); | |
1846 | int err; | |
1847 | ||
1848 | internal_vlan_id = ofdpa_port_vid_to_vlan(ofdpa_port, vid, &untagged); | |
1849 | ||
1850 | if (adding && | |
1851 | test_bit(ntohs(internal_vlan_id), ofdpa_port->vlan_bitmap)) | |
1852 | return 0; /* already added */ | |
1853 | else if (!adding && | |
1854 | !test_bit(ntohs(internal_vlan_id), ofdpa_port->vlan_bitmap)) | |
1855 | return 0; /* already removed */ | |
1856 | ||
1857 | change_bit(ntohs(internal_vlan_id), ofdpa_port->vlan_bitmap); | |
1858 | ||
1859 | if (adding) { | |
1860 | err = ofdpa_port_ctrl_vlan_add(ofdpa_port, trans, flags, | |
1861 | internal_vlan_id); | |
1862 | if (err) { | |
1863 | netdev_err(ofdpa_port->dev, "Error (%d) port ctrl vlan add\n", err); | |
1864 | goto err_out; | |
1865 | } | |
1866 | } | |
1867 | ||
1868 | err = ofdpa_port_vlan_l2_groups(ofdpa_port, trans, flags, | |
1869 | internal_vlan_id, untagged); | |
1870 | if (err) { | |
1871 | netdev_err(ofdpa_port->dev, "Error (%d) port VLAN l2 groups\n", err); | |
1872 | goto err_out; | |
1873 | } | |
1874 | ||
1875 | err = ofdpa_port_vlan_flood_group(ofdpa_port, trans, flags, | |
1876 | internal_vlan_id); | |
1877 | if (err) { | |
1878 | netdev_err(ofdpa_port->dev, "Error (%d) port VLAN l2 flood group\n", err); | |
1879 | goto err_out; | |
1880 | } | |
1881 | ||
1882 | err = ofdpa_flow_tbl_vlan(ofdpa_port, trans, flags, | |
1883 | in_pport, vlan_id, vlan_id_mask, | |
1884 | goto_tbl, untagged, internal_vlan_id); | |
1885 | if (err) | |
1886 | netdev_err(ofdpa_port->dev, "Error (%d) port VLAN table\n", err); | |
1887 | ||
1888 | err_out: | |
1889 | if (switchdev_trans_ph_prepare(trans)) | |
1890 | change_bit(ntohs(internal_vlan_id), ofdpa_port->vlan_bitmap); | |
1891 | ||
1892 | return err; | |
1893 | } | |
1894 | ||
1895 | static int ofdpa_port_ig_tbl(struct ofdpa_port *ofdpa_port, | |
1896 | struct switchdev_trans *trans, int flags) | |
1897 | { | |
1898 | enum rocker_of_dpa_table_id goto_tbl; | |
1899 | u32 in_pport; | |
1900 | u32 in_pport_mask; | |
1901 | int err; | |
1902 | ||
1903 | /* Normal Ethernet Frames. Matches pkts from any local physical | |
1904 | * ports. Goto VLAN tbl. | |
1905 | */ | |
1906 | ||
1907 | in_pport = 0; | |
1908 | in_pport_mask = 0xffff0000; | |
1909 | goto_tbl = ROCKER_OF_DPA_TABLE_ID_VLAN; | |
1910 | ||
1911 | err = ofdpa_flow_tbl_ig_port(ofdpa_port, trans, flags, | |
1912 | in_pport, in_pport_mask, | |
1913 | goto_tbl); | |
1914 | if (err) | |
1915 | netdev_err(ofdpa_port->dev, "Error (%d) ingress port table entry\n", err); | |
1916 | ||
1917 | return err; | |
1918 | } | |
1919 | ||
1920 | struct ofdpa_fdb_learn_work { | |
1921 | struct work_struct work; | |
1922 | struct ofdpa_port *ofdpa_port; | |
1923 | struct switchdev_trans *trans; | |
1924 | int flags; | |
1925 | u8 addr[ETH_ALEN]; | |
1926 | u16 vid; | |
1927 | }; | |
1928 | ||
1929 | static void ofdpa_port_fdb_learn_work(struct work_struct *work) | |
1930 | { | |
1931 | const struct ofdpa_fdb_learn_work *lw = | |
1932 | container_of(work, struct ofdpa_fdb_learn_work, work); | |
1933 | bool removing = (lw->flags & OFDPA_OP_FLAG_REMOVE); | |
1934 | bool learned = (lw->flags & OFDPA_OP_FLAG_LEARNED); | |
1935 | struct switchdev_notifier_fdb_info info; | |
1936 | ||
1937 | info.addr = lw->addr; | |
1938 | info.vid = lw->vid; | |
1939 | ||
1940 | rtnl_lock(); | |
1941 | if (learned && removing) | |
1942 | call_switchdev_notifiers(SWITCHDEV_FDB_DEL, | |
1943 | lw->ofdpa_port->dev, &info.info); | |
1944 | else if (learned && !removing) | |
1945 | call_switchdev_notifiers(SWITCHDEV_FDB_ADD, | |
1946 | lw->ofdpa_port->dev, &info.info); | |
1947 | rtnl_unlock(); | |
1948 | ||
1949 | ofdpa_kfree(lw->trans, work); | |
1950 | } | |
1951 | ||
1952 | static int ofdpa_port_fdb_learn(struct ofdpa_port *ofdpa_port, | |
1953 | struct switchdev_trans *trans, int flags, | |
1954 | const u8 *addr, __be16 vlan_id) | |
1955 | { | |
1956 | struct ofdpa_fdb_learn_work *lw; | |
1957 | enum rocker_of_dpa_table_id goto_tbl = | |
1958 | ROCKER_OF_DPA_TABLE_ID_ACL_POLICY; | |
1959 | u32 out_pport = ofdpa_port->pport; | |
1960 | u32 tunnel_id = 0; | |
1961 | u32 group_id = ROCKER_GROUP_NONE; | |
1962 | bool syncing = !!(ofdpa_port->brport_flags & BR_LEARNING_SYNC); | |
1963 | bool copy_to_cpu = false; | |
1964 | int err; | |
1965 | ||
1966 | if (ofdpa_port_is_bridged(ofdpa_port)) | |
1967 | group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport); | |
1968 | ||
1969 | if (!(flags & OFDPA_OP_FLAG_REFRESH)) { | |
1970 | err = ofdpa_flow_tbl_bridge(ofdpa_port, trans, flags, addr, | |
1971 | NULL, vlan_id, tunnel_id, goto_tbl, | |
1972 | group_id, copy_to_cpu); | |
1973 | if (err) | |
1974 | return err; | |
1975 | } | |
1976 | ||
1977 | if (!syncing) | |
1978 | return 0; | |
1979 | ||
1980 | if (!ofdpa_port_is_bridged(ofdpa_port)) | |
1981 | return 0; | |
1982 | ||
1983 | lw = ofdpa_kzalloc(trans, flags, sizeof(*lw)); | |
1984 | if (!lw) | |
1985 | return -ENOMEM; | |
1986 | ||
1987 | INIT_WORK(&lw->work, ofdpa_port_fdb_learn_work); | |
1988 | ||
1989 | lw->ofdpa_port = ofdpa_port; | |
1990 | lw->trans = trans; | |
1991 | lw->flags = flags; | |
1992 | ether_addr_copy(lw->addr, addr); | |
1993 | lw->vid = ofdpa_port_vlan_to_vid(ofdpa_port, vlan_id); | |
1994 | ||
1995 | if (switchdev_trans_ph_prepare(trans)) | |
1996 | ofdpa_kfree(trans, lw); | |
1997 | else | |
1998 | schedule_work(&lw->work); | |
1999 | ||
2000 | return 0; | |
2001 | } | |
2002 | ||
2003 | static struct ofdpa_fdb_tbl_entry * | |
2004 | ofdpa_fdb_tbl_find(const struct ofdpa *ofdpa, | |
2005 | const struct ofdpa_fdb_tbl_entry *match) | |
2006 | { | |
2007 | struct ofdpa_fdb_tbl_entry *found; | |
2008 | ||
2009 | hash_for_each_possible(ofdpa->fdb_tbl, found, entry, match->key_crc32) | |
2010 | if (memcmp(&found->key, &match->key, sizeof(found->key)) == 0) | |
2011 | return found; | |
2012 | ||
2013 | return NULL; | |
2014 | } | |
2015 | ||
2016 | static int ofdpa_port_fdb(struct ofdpa_port *ofdpa_port, | |
2017 | struct switchdev_trans *trans, | |
2018 | const unsigned char *addr, | |
2019 | __be16 vlan_id, int flags) | |
2020 | { | |
2021 | struct ofdpa *ofdpa = ofdpa_port->ofdpa; | |
2022 | struct ofdpa_fdb_tbl_entry *fdb; | |
2023 | struct ofdpa_fdb_tbl_entry *found; | |
2024 | bool removing = (flags & OFDPA_OP_FLAG_REMOVE); | |
2025 | unsigned long lock_flags; | |
2026 | ||
2027 | fdb = ofdpa_kzalloc(trans, flags, sizeof(*fdb)); | |
2028 | if (!fdb) | |
2029 | return -ENOMEM; | |
2030 | ||
2031 | fdb->learned = (flags & OFDPA_OP_FLAG_LEARNED); | |
2032 | fdb->touched = jiffies; | |
2033 | fdb->key.ofdpa_port = ofdpa_port; | |
2034 | ether_addr_copy(fdb->key.addr, addr); | |
2035 | fdb->key.vlan_id = vlan_id; | |
2036 | fdb->key_crc32 = crc32(~0, &fdb->key, sizeof(fdb->key)); | |
2037 | ||
2038 | spin_lock_irqsave(&ofdpa->fdb_tbl_lock, lock_flags); | |
2039 | ||
2040 | found = ofdpa_fdb_tbl_find(ofdpa, fdb); | |
2041 | ||
2042 | if (found) { | |
2043 | found->touched = jiffies; | |
2044 | if (removing) { | |
2045 | ofdpa_kfree(trans, fdb); | |
2046 | if (!switchdev_trans_ph_prepare(trans)) | |
2047 | hash_del(&found->entry); | |
2048 | } | |
2049 | } else if (!removing) { | |
2050 | if (!switchdev_trans_ph_prepare(trans)) | |
2051 | hash_add(ofdpa->fdb_tbl, &fdb->entry, | |
2052 | fdb->key_crc32); | |
2053 | } | |
2054 | ||
2055 | spin_unlock_irqrestore(&ofdpa->fdb_tbl_lock, lock_flags); | |
2056 | ||
2057 | /* Check if adding and already exists, or removing and can't find */ | |
2058 | if (!found != !removing) { | |
2059 | ofdpa_kfree(trans, fdb); | |
2060 | if (!found && removing) | |
2061 | return 0; | |
2062 | /* Refreshing existing to update aging timers */ | |
2063 | flags |= OFDPA_OP_FLAG_REFRESH; | |
2064 | } | |
2065 | ||
2066 | return ofdpa_port_fdb_learn(ofdpa_port, trans, flags, addr, vlan_id); | |
2067 | } | |
2068 | ||
2069 | static int ofdpa_port_fdb_flush(struct ofdpa_port *ofdpa_port, | |
2070 | struct switchdev_trans *trans, int flags) | |
2071 | { | |
2072 | struct ofdpa *ofdpa = ofdpa_port->ofdpa; | |
2073 | struct ofdpa_fdb_tbl_entry *found; | |
2074 | unsigned long lock_flags; | |
2075 | struct hlist_node *tmp; | |
2076 | int bkt; | |
2077 | int err = 0; | |
2078 | ||
2079 | if (ofdpa_port->stp_state == BR_STATE_LEARNING || | |
2080 | ofdpa_port->stp_state == BR_STATE_FORWARDING) | |
2081 | return 0; | |
2082 | ||
2083 | flags |= OFDPA_OP_FLAG_NOWAIT | OFDPA_OP_FLAG_REMOVE; | |
2084 | ||
2085 | spin_lock_irqsave(&ofdpa->fdb_tbl_lock, lock_flags); | |
2086 | ||
2087 | hash_for_each_safe(ofdpa->fdb_tbl, bkt, tmp, found, entry) { | |
2088 | if (found->key.ofdpa_port != ofdpa_port) | |
2089 | continue; | |
2090 | if (!found->learned) | |
2091 | continue; | |
2092 | err = ofdpa_port_fdb_learn(ofdpa_port, trans, flags, | |
2093 | found->key.addr, | |
2094 | found->key.vlan_id); | |
2095 | if (err) | |
2096 | goto err_out; | |
2097 | if (!switchdev_trans_ph_prepare(trans)) | |
2098 | hash_del(&found->entry); | |
2099 | } | |
2100 | ||
2101 | err_out: | |
2102 | spin_unlock_irqrestore(&ofdpa->fdb_tbl_lock, lock_flags); | |
2103 | ||
2104 | return err; | |
2105 | } | |
2106 | ||
2107 | static void ofdpa_fdb_cleanup(unsigned long data) | |
2108 | { | |
2109 | struct ofdpa *ofdpa = (struct ofdpa *)data; | |
2110 | struct ofdpa_port *ofdpa_port; | |
2111 | struct ofdpa_fdb_tbl_entry *entry; | |
2112 | struct hlist_node *tmp; | |
3a8befcd | 2113 | unsigned long next_timer = jiffies + ofdpa->ageing_time; |
3fbcdbf3 JP |
2114 | unsigned long expires; |
2115 | unsigned long lock_flags; | |
2116 | int flags = OFDPA_OP_FLAG_NOWAIT | OFDPA_OP_FLAG_REMOVE | | |
2117 | OFDPA_OP_FLAG_LEARNED; | |
2118 | int bkt; | |
2119 | ||
2120 | spin_lock_irqsave(&ofdpa->fdb_tbl_lock, lock_flags); | |
2121 | ||
2122 | hash_for_each_safe(ofdpa->fdb_tbl, bkt, tmp, entry, entry) { | |
2123 | if (!entry->learned) | |
2124 | continue; | |
2125 | ofdpa_port = entry->key.ofdpa_port; | |
2126 | expires = entry->touched + ofdpa_port->ageing_time; | |
2127 | if (time_before_eq(expires, jiffies)) { | |
2128 | ofdpa_port_fdb_learn(ofdpa_port, NULL, | |
2129 | flags, entry->key.addr, | |
2130 | entry->key.vlan_id); | |
2131 | hash_del(&entry->entry); | |
2132 | } else if (time_before(expires, next_timer)) { | |
2133 | next_timer = expires; | |
2134 | } | |
2135 | } | |
2136 | ||
2137 | spin_unlock_irqrestore(&ofdpa->fdb_tbl_lock, lock_flags); | |
2138 | ||
2139 | mod_timer(&ofdpa->fdb_cleanup_timer, round_jiffies_up(next_timer)); | |
2140 | } | |
2141 | ||
2142 | static int ofdpa_port_router_mac(struct ofdpa_port *ofdpa_port, | |
2143 | struct switchdev_trans *trans, int flags, | |
2144 | __be16 vlan_id) | |
2145 | { | |
2146 | u32 in_pport_mask = 0xffffffff; | |
2147 | __be16 eth_type; | |
2148 | const u8 *dst_mac_mask = ff_mac; | |
2149 | __be16 vlan_id_mask = htons(0xffff); | |
2150 | bool copy_to_cpu = false; | |
2151 | int err; | |
2152 | ||
2153 | if (ntohs(vlan_id) == 0) | |
2154 | vlan_id = ofdpa_port->internal_vlan_id; | |
2155 | ||
2156 | eth_type = htons(ETH_P_IP); | |
2157 | err = ofdpa_flow_tbl_term_mac(ofdpa_port, trans, | |
2158 | ofdpa_port->pport, in_pport_mask, | |
2159 | eth_type, ofdpa_port->dev->dev_addr, | |
2160 | dst_mac_mask, vlan_id, vlan_id_mask, | |
2161 | copy_to_cpu, flags); | |
2162 | if (err) | |
2163 | return err; | |
2164 | ||
2165 | eth_type = htons(ETH_P_IPV6); | |
2166 | err = ofdpa_flow_tbl_term_mac(ofdpa_port, trans, | |
2167 | ofdpa_port->pport, in_pport_mask, | |
2168 | eth_type, ofdpa_port->dev->dev_addr, | |
2169 | dst_mac_mask, vlan_id, vlan_id_mask, | |
2170 | copy_to_cpu, flags); | |
2171 | ||
2172 | return err; | |
2173 | } | |
2174 | ||
2175 | static int ofdpa_port_fwding(struct ofdpa_port *ofdpa_port, | |
2176 | struct switchdev_trans *trans, int flags) | |
2177 | { | |
2178 | bool pop_vlan; | |
2179 | u32 out_pport; | |
2180 | __be16 vlan_id; | |
2181 | u16 vid; | |
2182 | int err; | |
2183 | ||
2184 | /* Port will be forwarding-enabled if its STP state is LEARNING | |
2185 | * or FORWARDING. Traffic from CPU can still egress, regardless of | |
2186 | * port STP state. Use L2 interface group on port VLANs as a way | |
2187 | * to toggle port forwarding: if forwarding is disabled, L2 | |
2188 | * interface group will not exist. | |
2189 | */ | |
2190 | ||
2191 | if (ofdpa_port->stp_state != BR_STATE_LEARNING && | |
2192 | ofdpa_port->stp_state != BR_STATE_FORWARDING) | |
2193 | flags |= OFDPA_OP_FLAG_REMOVE; | |
2194 | ||
2195 | out_pport = ofdpa_port->pport; | |
2196 | for (vid = 1; vid < VLAN_N_VID; vid++) { | |
2197 | if (!test_bit(vid, ofdpa_port->vlan_bitmap)) | |
2198 | continue; | |
2199 | vlan_id = htons(vid); | |
2200 | pop_vlan = ofdpa_vlan_id_is_internal(vlan_id); | |
2201 | err = ofdpa_group_l2_interface(ofdpa_port, trans, flags, | |
2202 | vlan_id, out_pport, pop_vlan); | |
2203 | if (err) { | |
2204 | netdev_err(ofdpa_port->dev, "Error (%d) port VLAN l2 group for pport %d\n", | |
2205 | err, out_pport); | |
2206 | return err; | |
2207 | } | |
2208 | } | |
2209 | ||
2210 | return 0; | |
2211 | } | |
2212 | ||
2213 | static int ofdpa_port_stp_update(struct ofdpa_port *ofdpa_port, | |
2214 | struct switchdev_trans *trans, | |
2215 | int flags, u8 state) | |
2216 | { | |
2217 | bool want[OFDPA_CTRL_MAX] = { 0, }; | |
2218 | bool prev_ctrls[OFDPA_CTRL_MAX]; | |
16b8b6de | 2219 | u8 prev_state; |
3fbcdbf3 JP |
2220 | int err; |
2221 | int i; | |
2222 | ||
16b8b6de AB |
2223 | prev_state = ofdpa_port->stp_state; |
2224 | if (prev_state == state) | |
3fbcdbf3 JP |
2225 | return 0; |
2226 | ||
16b8b6de | 2227 | memcpy(prev_ctrls, ofdpa_port->ctrls, sizeof(prev_ctrls)); |
3fbcdbf3 JP |
2228 | ofdpa_port->stp_state = state; |
2229 | ||
2230 | switch (state) { | |
2231 | case BR_STATE_DISABLED: | |
2232 | /* port is completely disabled */ | |
2233 | break; | |
2234 | case BR_STATE_LISTENING: | |
2235 | case BR_STATE_BLOCKING: | |
2236 | want[OFDPA_CTRL_LINK_LOCAL_MCAST] = true; | |
2237 | break; | |
2238 | case BR_STATE_LEARNING: | |
2239 | case BR_STATE_FORWARDING: | |
2240 | if (!ofdpa_port_is_ovsed(ofdpa_port)) | |
2241 | want[OFDPA_CTRL_LINK_LOCAL_MCAST] = true; | |
2242 | want[OFDPA_CTRL_IPV4_MCAST] = true; | |
2243 | want[OFDPA_CTRL_IPV6_MCAST] = true; | |
2244 | if (ofdpa_port_is_bridged(ofdpa_port)) | |
2245 | want[OFDPA_CTRL_DFLT_BRIDGING] = true; | |
2246 | else if (ofdpa_port_is_ovsed(ofdpa_port)) | |
2247 | want[OFDPA_CTRL_DFLT_OVS] = true; | |
2248 | else | |
2249 | want[OFDPA_CTRL_LOCAL_ARP] = true; | |
2250 | break; | |
2251 | } | |
2252 | ||
2253 | for (i = 0; i < OFDPA_CTRL_MAX; i++) { | |
2254 | if (want[i] != ofdpa_port->ctrls[i]) { | |
2255 | int ctrl_flags = flags | | |
2256 | (want[i] ? 0 : OFDPA_OP_FLAG_REMOVE); | |
2257 | err = ofdpa_port_ctrl(ofdpa_port, trans, ctrl_flags, | |
2258 | &ofdpa_ctrls[i]); | |
2259 | if (err) | |
2260 | goto err_out; | |
2261 | ofdpa_port->ctrls[i] = want[i]; | |
2262 | } | |
2263 | } | |
2264 | ||
2265 | err = ofdpa_port_fdb_flush(ofdpa_port, trans, flags); | |
2266 | if (err) | |
2267 | goto err_out; | |
2268 | ||
2269 | err = ofdpa_port_fwding(ofdpa_port, trans, flags); | |
2270 | ||
2271 | err_out: | |
2272 | if (switchdev_trans_ph_prepare(trans)) { | |
2273 | memcpy(ofdpa_port->ctrls, prev_ctrls, sizeof(prev_ctrls)); | |
2274 | ofdpa_port->stp_state = prev_state; | |
2275 | } | |
2276 | ||
2277 | return err; | |
2278 | } | |
2279 | ||
2280 | static int ofdpa_port_fwd_enable(struct ofdpa_port *ofdpa_port, int flags) | |
2281 | { | |
2282 | if (ofdpa_port_is_bridged(ofdpa_port)) | |
2283 | /* bridge STP will enable port */ | |
2284 | return 0; | |
2285 | ||
2286 | /* port is not bridged, so simulate going to FORWARDING state */ | |
2287 | return ofdpa_port_stp_update(ofdpa_port, NULL, flags, | |
2288 | BR_STATE_FORWARDING); | |
2289 | } | |
2290 | ||
2291 | static int ofdpa_port_fwd_disable(struct ofdpa_port *ofdpa_port, int flags) | |
2292 | { | |
2293 | if (ofdpa_port_is_bridged(ofdpa_port)) | |
2294 | /* bridge STP will disable port */ | |
2295 | return 0; | |
2296 | ||
2297 | /* port is not bridged, so simulate going to DISABLED state */ | |
2298 | return ofdpa_port_stp_update(ofdpa_port, NULL, flags, | |
2299 | BR_STATE_DISABLED); | |
2300 | } | |
2301 | ||
2302 | static int ofdpa_port_vlan_add(struct ofdpa_port *ofdpa_port, | |
2303 | struct switchdev_trans *trans, | |
2304 | u16 vid, u16 flags) | |
2305 | { | |
2306 | int err; | |
2307 | ||
2308 | /* XXX deal with flags for PVID and untagged */ | |
2309 | ||
2310 | err = ofdpa_port_vlan(ofdpa_port, trans, 0, vid); | |
2311 | if (err) | |
2312 | return err; | |
2313 | ||
2314 | err = ofdpa_port_router_mac(ofdpa_port, trans, 0, htons(vid)); | |
2315 | if (err) | |
2316 | ofdpa_port_vlan(ofdpa_port, trans, | |
2317 | OFDPA_OP_FLAG_REMOVE, vid); | |
2318 | ||
2319 | return err; | |
2320 | } | |
2321 | ||
2322 | static int ofdpa_port_vlan_del(struct ofdpa_port *ofdpa_port, | |
2323 | u16 vid, u16 flags) | |
2324 | { | |
2325 | int err; | |
2326 | ||
2327 | err = ofdpa_port_router_mac(ofdpa_port, NULL, | |
2328 | OFDPA_OP_FLAG_REMOVE, htons(vid)); | |
2329 | if (err) | |
2330 | return err; | |
2331 | ||
2332 | return ofdpa_port_vlan(ofdpa_port, NULL, | |
2333 | OFDPA_OP_FLAG_REMOVE, vid); | |
2334 | } | |
2335 | ||
2336 | static struct ofdpa_internal_vlan_tbl_entry * | |
2337 | ofdpa_internal_vlan_tbl_find(const struct ofdpa *ofdpa, int ifindex) | |
2338 | { | |
2339 | struct ofdpa_internal_vlan_tbl_entry *found; | |
2340 | ||
2341 | hash_for_each_possible(ofdpa->internal_vlan_tbl, found, | |
2342 | entry, ifindex) { | |
2343 | if (found->ifindex == ifindex) | |
2344 | return found; | |
2345 | } | |
2346 | ||
2347 | return NULL; | |
2348 | } | |
2349 | ||
2350 | static __be16 ofdpa_port_internal_vlan_id_get(struct ofdpa_port *ofdpa_port, | |
2351 | int ifindex) | |
2352 | { | |
2353 | struct ofdpa *ofdpa = ofdpa_port->ofdpa; | |
2354 | struct ofdpa_internal_vlan_tbl_entry *entry; | |
2355 | struct ofdpa_internal_vlan_tbl_entry *found; | |
2356 | unsigned long lock_flags; | |
2357 | int i; | |
2358 | ||
2359 | entry = kzalloc(sizeof(*entry), GFP_KERNEL); | |
2360 | if (!entry) | |
2361 | return 0; | |
2362 | ||
2363 | entry->ifindex = ifindex; | |
2364 | ||
2365 | spin_lock_irqsave(&ofdpa->internal_vlan_tbl_lock, lock_flags); | |
2366 | ||
2367 | found = ofdpa_internal_vlan_tbl_find(ofdpa, ifindex); | |
2368 | if (found) { | |
2369 | kfree(entry); | |
2370 | goto found; | |
2371 | } | |
2372 | ||
2373 | found = entry; | |
2374 | hash_add(ofdpa->internal_vlan_tbl, &found->entry, found->ifindex); | |
2375 | ||
2376 | for (i = 0; i < OFDPA_N_INTERNAL_VLANS; i++) { | |
2377 | if (test_and_set_bit(i, ofdpa->internal_vlan_bitmap)) | |
2378 | continue; | |
2379 | found->vlan_id = htons(OFDPA_INTERNAL_VLAN_ID_BASE + i); | |
2380 | goto found; | |
2381 | } | |
2382 | ||
2383 | netdev_err(ofdpa_port->dev, "Out of internal VLAN IDs\n"); | |
2384 | ||
2385 | found: | |
2386 | found->ref_count++; | |
2387 | spin_unlock_irqrestore(&ofdpa->internal_vlan_tbl_lock, lock_flags); | |
2388 | ||
2389 | return found->vlan_id; | |
2390 | } | |
2391 | ||
2392 | static int ofdpa_port_fib_ipv4(struct ofdpa_port *ofdpa_port, | |
2393 | struct switchdev_trans *trans, __be32 dst, | |
936bd486 | 2394 | int dst_len, struct fib_info *fi, |
3fbcdbf3 JP |
2395 | u32 tb_id, int flags) |
2396 | { | |
2397 | const struct fib_nh *nh; | |
2398 | __be16 eth_type = htons(ETH_P_IP); | |
2399 | __be32 dst_mask = inet_make_mask(dst_len); | |
2400 | __be16 internal_vlan_id = ofdpa_port->internal_vlan_id; | |
2401 | u32 priority = fi->fib_priority; | |
2402 | enum rocker_of_dpa_table_id goto_tbl = | |
2403 | ROCKER_OF_DPA_TABLE_ID_ACL_POLICY; | |
2404 | u32 group_id; | |
2405 | bool nh_on_port; | |
2406 | bool has_gw; | |
2407 | u32 index; | |
2408 | int err; | |
2409 | ||
2410 | /* XXX support ECMP */ | |
2411 | ||
2412 | nh = fi->fib_nh; | |
2413 | nh_on_port = (fi->fib_dev == ofdpa_port->dev); | |
2414 | has_gw = !!nh->nh_gw; | |
2415 | ||
2416 | if (has_gw && nh_on_port) { | |
2417 | err = ofdpa_port_ipv4_nh(ofdpa_port, trans, flags, | |
2418 | nh->nh_gw, &index); | |
2419 | if (err) | |
2420 | return err; | |
2421 | ||
2422 | group_id = ROCKER_GROUP_L3_UNICAST(index); | |
2423 | } else { | |
2424 | /* Send to CPU for processing */ | |
2425 | group_id = ROCKER_GROUP_L2_INTERFACE(internal_vlan_id, 0); | |
2426 | } | |
2427 | ||
2428 | err = ofdpa_flow_tbl_ucast4_routing(ofdpa_port, trans, eth_type, dst, | |
2429 | dst_mask, priority, goto_tbl, | |
936bd486 | 2430 | group_id, fi, flags); |
3fbcdbf3 JP |
2431 | if (err) |
2432 | netdev_err(ofdpa_port->dev, "Error (%d) IPv4 route %pI4\n", | |
2433 | err, &dst); | |
2434 | ||
2435 | return err; | |
2436 | } | |
2437 | ||
2438 | static void | |
2439 | ofdpa_port_internal_vlan_id_put(const struct ofdpa_port *ofdpa_port, | |
2440 | int ifindex) | |
2441 | { | |
2442 | struct ofdpa *ofdpa = ofdpa_port->ofdpa; | |
2443 | struct ofdpa_internal_vlan_tbl_entry *found; | |
2444 | unsigned long lock_flags; | |
2445 | unsigned long bit; | |
2446 | ||
2447 | spin_lock_irqsave(&ofdpa->internal_vlan_tbl_lock, lock_flags); | |
2448 | ||
2449 | found = ofdpa_internal_vlan_tbl_find(ofdpa, ifindex); | |
2450 | if (!found) { | |
2451 | netdev_err(ofdpa_port->dev, | |
2452 | "ifindex (%d) not found in internal VLAN tbl\n", | |
2453 | ifindex); | |
2454 | goto not_found; | |
2455 | } | |
2456 | ||
2457 | if (--found->ref_count <= 0) { | |
2458 | bit = ntohs(found->vlan_id) - OFDPA_INTERNAL_VLAN_ID_BASE; | |
2459 | clear_bit(bit, ofdpa->internal_vlan_bitmap); | |
2460 | hash_del(&found->entry); | |
2461 | kfree(found); | |
2462 | } | |
2463 | ||
2464 | not_found: | |
2465 | spin_unlock_irqrestore(&ofdpa->internal_vlan_tbl_lock, lock_flags); | |
2466 | } | |
2467 | ||
2468 | /********************************** | |
2469 | * Rocker world ops implementation | |
2470 | **********************************/ | |
2471 | ||
2472 | static int ofdpa_init(struct rocker *rocker) | |
2473 | { | |
2474 | struct ofdpa *ofdpa = rocker->wpriv; | |
2475 | ||
2476 | ofdpa->rocker = rocker; | |
2477 | ||
2478 | hash_init(ofdpa->flow_tbl); | |
2479 | spin_lock_init(&ofdpa->flow_tbl_lock); | |
2480 | ||
2481 | hash_init(ofdpa->group_tbl); | |
2482 | spin_lock_init(&ofdpa->group_tbl_lock); | |
2483 | ||
2484 | hash_init(ofdpa->fdb_tbl); | |
2485 | spin_lock_init(&ofdpa->fdb_tbl_lock); | |
2486 | ||
2487 | hash_init(ofdpa->internal_vlan_tbl); | |
2488 | spin_lock_init(&ofdpa->internal_vlan_tbl_lock); | |
2489 | ||
2490 | hash_init(ofdpa->neigh_tbl); | |
2491 | spin_lock_init(&ofdpa->neigh_tbl_lock); | |
2492 | ||
2493 | setup_timer(&ofdpa->fdb_cleanup_timer, ofdpa_fdb_cleanup, | |
2494 | (unsigned long) ofdpa); | |
2495 | mod_timer(&ofdpa->fdb_cleanup_timer, jiffies); | |
2496 | ||
3a8befcd JP |
2497 | ofdpa->ageing_time = BR_DEFAULT_AGEING_TIME; |
2498 | ||
3fbcdbf3 JP |
2499 | return 0; |
2500 | } | |
2501 | ||
2502 | static void ofdpa_fini(struct rocker *rocker) | |
2503 | { | |
2504 | struct ofdpa *ofdpa = rocker->wpriv; | |
2505 | ||
2506 | unsigned long flags; | |
2507 | struct ofdpa_flow_tbl_entry *flow_entry; | |
2508 | struct ofdpa_group_tbl_entry *group_entry; | |
2509 | struct ofdpa_fdb_tbl_entry *fdb_entry; | |
2510 | struct ofdpa_internal_vlan_tbl_entry *internal_vlan_entry; | |
2511 | struct ofdpa_neigh_tbl_entry *neigh_entry; | |
2512 | struct hlist_node *tmp; | |
2513 | int bkt; | |
2514 | ||
2515 | del_timer_sync(&ofdpa->fdb_cleanup_timer); | |
db701955 | 2516 | flush_workqueue(rocker->rocker_owq); |
3fbcdbf3 JP |
2517 | |
2518 | spin_lock_irqsave(&ofdpa->flow_tbl_lock, flags); | |
2519 | hash_for_each_safe(ofdpa->flow_tbl, bkt, tmp, flow_entry, entry) | |
2520 | hash_del(&flow_entry->entry); | |
2521 | spin_unlock_irqrestore(&ofdpa->flow_tbl_lock, flags); | |
2522 | ||
2523 | spin_lock_irqsave(&ofdpa->group_tbl_lock, flags); | |
2524 | hash_for_each_safe(ofdpa->group_tbl, bkt, tmp, group_entry, entry) | |
2525 | hash_del(&group_entry->entry); | |
2526 | spin_unlock_irqrestore(&ofdpa->group_tbl_lock, flags); | |
2527 | ||
2528 | spin_lock_irqsave(&ofdpa->fdb_tbl_lock, flags); | |
2529 | hash_for_each_safe(ofdpa->fdb_tbl, bkt, tmp, fdb_entry, entry) | |
2530 | hash_del(&fdb_entry->entry); | |
2531 | spin_unlock_irqrestore(&ofdpa->fdb_tbl_lock, flags); | |
2532 | ||
2533 | spin_lock_irqsave(&ofdpa->internal_vlan_tbl_lock, flags); | |
2534 | hash_for_each_safe(ofdpa->internal_vlan_tbl, bkt, | |
2535 | tmp, internal_vlan_entry, entry) | |
2536 | hash_del(&internal_vlan_entry->entry); | |
2537 | spin_unlock_irqrestore(&ofdpa->internal_vlan_tbl_lock, flags); | |
2538 | ||
2539 | spin_lock_irqsave(&ofdpa->neigh_tbl_lock, flags); | |
2540 | hash_for_each_safe(ofdpa->neigh_tbl, bkt, tmp, neigh_entry, entry) | |
2541 | hash_del(&neigh_entry->entry); | |
2542 | spin_unlock_irqrestore(&ofdpa->neigh_tbl_lock, flags); | |
2543 | } | |
2544 | ||
2545 | static int ofdpa_port_pre_init(struct rocker_port *rocker_port) | |
2546 | { | |
2547 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; | |
2548 | ||
2549 | ofdpa_port->ofdpa = rocker_port->rocker->wpriv; | |
2550 | ofdpa_port->rocker_port = rocker_port; | |
2551 | ofdpa_port->dev = rocker_port->dev; | |
2552 | ofdpa_port->pport = rocker_port->pport; | |
2553 | ofdpa_port->brport_flags = BR_LEARNING | BR_LEARNING_SYNC; | |
2554 | ofdpa_port->ageing_time = BR_DEFAULT_AGEING_TIME; | |
2555 | return 0; | |
2556 | } | |
2557 | ||
2558 | static int ofdpa_port_init(struct rocker_port *rocker_port) | |
2559 | { | |
2560 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; | |
2561 | int err; | |
2562 | ||
3fbcdbf3 JP |
2563 | rocker_port_set_learning(rocker_port, |
2564 | !!(ofdpa_port->brport_flags & BR_LEARNING)); | |
2565 | ||
2566 | err = ofdpa_port_ig_tbl(ofdpa_port, NULL, 0); | |
2567 | if (err) { | |
2568 | netdev_err(ofdpa_port->dev, "install ig port table failed\n"); | |
2569 | return err; | |
2570 | } | |
2571 | ||
2572 | ofdpa_port->internal_vlan_id = | |
2573 | ofdpa_port_internal_vlan_id_get(ofdpa_port, | |
2574 | ofdpa_port->dev->ifindex); | |
2575 | ||
2576 | err = ofdpa_port_vlan_add(ofdpa_port, NULL, OFDPA_UNTAGGED_VID, 0); | |
2577 | if (err) { | |
2578 | netdev_err(ofdpa_port->dev, "install untagged VLAN failed\n"); | |
2579 | goto err_untagged_vlan; | |
2580 | } | |
2581 | return 0; | |
2582 | ||
2583 | err_untagged_vlan: | |
2584 | ofdpa_port_ig_tbl(ofdpa_port, NULL, OFDPA_OP_FLAG_REMOVE); | |
2585 | return err; | |
2586 | } | |
2587 | ||
2588 | static void ofdpa_port_fini(struct rocker_port *rocker_port) | |
2589 | { | |
2590 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; | |
2591 | ||
2592 | ofdpa_port_ig_tbl(ofdpa_port, NULL, OFDPA_OP_FLAG_REMOVE); | |
2593 | } | |
2594 | ||
2595 | static int ofdpa_port_open(struct rocker_port *rocker_port) | |
2596 | { | |
2597 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; | |
2598 | ||
2599 | return ofdpa_port_fwd_enable(ofdpa_port, 0); | |
2600 | } | |
2601 | ||
2602 | static void ofdpa_port_stop(struct rocker_port *rocker_port) | |
2603 | { | |
2604 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; | |
2605 | ||
2606 | ofdpa_port_fwd_disable(ofdpa_port, OFDPA_OP_FLAG_NOWAIT); | |
2607 | } | |
2608 | ||
2609 | static int ofdpa_port_attr_stp_state_set(struct rocker_port *rocker_port, | |
2610 | u8 state, | |
2611 | struct switchdev_trans *trans) | |
2612 | { | |
2613 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; | |
2614 | ||
2615 | return ofdpa_port_stp_update(ofdpa_port, trans, 0, state); | |
2616 | } | |
2617 | ||
2618 | static int ofdpa_port_attr_bridge_flags_set(struct rocker_port *rocker_port, | |
2619 | unsigned long brport_flags, | |
2620 | struct switchdev_trans *trans) | |
2621 | { | |
2622 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; | |
2623 | unsigned long orig_flags; | |
2624 | int err = 0; | |
2625 | ||
2626 | orig_flags = ofdpa_port->brport_flags; | |
2627 | ofdpa_port->brport_flags = brport_flags; | |
2628 | if ((orig_flags ^ ofdpa_port->brport_flags) & BR_LEARNING && | |
2629 | !switchdev_trans_ph_prepare(trans)) | |
2630 | err = rocker_port_set_learning(ofdpa_port->rocker_port, | |
2631 | !!(ofdpa_port->brport_flags & BR_LEARNING)); | |
2632 | ||
2633 | if (switchdev_trans_ph_prepare(trans)) | |
2634 | ofdpa_port->brport_flags = orig_flags; | |
2635 | ||
2636 | return err; | |
2637 | } | |
2638 | ||
2639 | static int | |
2640 | ofdpa_port_attr_bridge_flags_get(const struct rocker_port *rocker_port, | |
2641 | unsigned long *p_brport_flags) | |
2642 | { | |
2643 | const struct ofdpa_port *ofdpa_port = rocker_port->wpriv; | |
2644 | ||
2645 | *p_brport_flags = ofdpa_port->brport_flags; | |
2646 | return 0; | |
2647 | } | |
2648 | ||
2649 | static int | |
2650 | ofdpa_port_attr_bridge_ageing_time_set(struct rocker_port *rocker_port, | |
2651 | u32 ageing_time, | |
2652 | struct switchdev_trans *trans) | |
2653 | { | |
2654 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; | |
3a8befcd | 2655 | struct ofdpa *ofdpa = ofdpa_port->ofdpa; |
3fbcdbf3 JP |
2656 | |
2657 | if (!switchdev_trans_ph_prepare(trans)) { | |
2658 | ofdpa_port->ageing_time = clock_t_to_jiffies(ageing_time); | |
3a8befcd JP |
2659 | if (ofdpa_port->ageing_time < ofdpa->ageing_time) |
2660 | ofdpa->ageing_time = ofdpa_port->ageing_time; | |
3fbcdbf3 JP |
2661 | mod_timer(&ofdpa_port->ofdpa->fdb_cleanup_timer, jiffies); |
2662 | } | |
2663 | ||
2664 | return 0; | |
2665 | } | |
2666 | ||
2667 | static int ofdpa_port_obj_vlan_add(struct rocker_port *rocker_port, | |
2668 | const struct switchdev_obj_port_vlan *vlan, | |
2669 | struct switchdev_trans *trans) | |
2670 | { | |
2671 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; | |
2672 | u16 vid; | |
2673 | int err; | |
2674 | ||
2675 | for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) { | |
2676 | err = ofdpa_port_vlan_add(ofdpa_port, trans, vid, vlan->flags); | |
2677 | if (err) | |
2678 | return err; | |
2679 | } | |
2680 | ||
2681 | return 0; | |
2682 | } | |
2683 | ||
2684 | static int ofdpa_port_obj_vlan_del(struct rocker_port *rocker_port, | |
2685 | const struct switchdev_obj_port_vlan *vlan) | |
2686 | { | |
2687 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; | |
2688 | u16 vid; | |
2689 | int err; | |
2690 | ||
2691 | for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) { | |
2692 | err = ofdpa_port_vlan_del(ofdpa_port, vid, vlan->flags); | |
2693 | if (err) | |
2694 | return err; | |
2695 | } | |
2696 | ||
2697 | return 0; | |
2698 | } | |
2699 | ||
2700 | static int ofdpa_port_obj_vlan_dump(const struct rocker_port *rocker_port, | |
2701 | struct switchdev_obj_port_vlan *vlan, | |
2702 | switchdev_obj_dump_cb_t *cb) | |
2703 | { | |
2704 | const struct ofdpa_port *ofdpa_port = rocker_port->wpriv; | |
2705 | u16 vid; | |
2706 | int err = 0; | |
2707 | ||
2708 | for (vid = 1; vid < VLAN_N_VID; vid++) { | |
2709 | if (!test_bit(vid, ofdpa_port->vlan_bitmap)) | |
2710 | continue; | |
2711 | vlan->flags = 0; | |
2712 | if (ofdpa_vlan_id_is_internal(htons(vid))) | |
2713 | vlan->flags |= BRIDGE_VLAN_INFO_PVID; | |
2714 | vlan->vid_begin = vlan->vid_end = vid; | |
2715 | err = cb(&vlan->obj); | |
2716 | if (err) | |
2717 | break; | |
2718 | } | |
2719 | ||
2720 | return err; | |
2721 | } | |
2722 | ||
3fbcdbf3 JP |
2723 | static int ofdpa_port_obj_fdb_add(struct rocker_port *rocker_port, |
2724 | const struct switchdev_obj_port_fdb *fdb, | |
2725 | struct switchdev_trans *trans) | |
2726 | { | |
2727 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; | |
2728 | __be16 vlan_id = ofdpa_port_vid_to_vlan(ofdpa_port, fdb->vid, NULL); | |
2729 | ||
2730 | if (!ofdpa_port_is_bridged(ofdpa_port)) | |
2731 | return -EINVAL; | |
2732 | ||
2733 | return ofdpa_port_fdb(ofdpa_port, trans, fdb->addr, vlan_id, 0); | |
2734 | } | |
2735 | ||
2736 | static int ofdpa_port_obj_fdb_del(struct rocker_port *rocker_port, | |
2737 | const struct switchdev_obj_port_fdb *fdb) | |
2738 | { | |
2739 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; | |
2740 | __be16 vlan_id = ofdpa_port_vid_to_vlan(ofdpa_port, fdb->vid, NULL); | |
2741 | int flags = OFDPA_OP_FLAG_REMOVE; | |
2742 | ||
2743 | if (!ofdpa_port_is_bridged(ofdpa_port)) | |
2744 | return -EINVAL; | |
2745 | ||
2746 | return ofdpa_port_fdb(ofdpa_port, NULL, fdb->addr, vlan_id, flags); | |
2747 | } | |
2748 | ||
2749 | static int ofdpa_port_obj_fdb_dump(const struct rocker_port *rocker_port, | |
2750 | struct switchdev_obj_port_fdb *fdb, | |
2751 | switchdev_obj_dump_cb_t *cb) | |
2752 | { | |
2753 | const struct ofdpa_port *ofdpa_port = rocker_port->wpriv; | |
2754 | struct ofdpa *ofdpa = ofdpa_port->ofdpa; | |
2755 | struct ofdpa_fdb_tbl_entry *found; | |
2756 | struct hlist_node *tmp; | |
2757 | unsigned long lock_flags; | |
2758 | int bkt; | |
2759 | int err = 0; | |
2760 | ||
2761 | spin_lock_irqsave(&ofdpa->fdb_tbl_lock, lock_flags); | |
2762 | hash_for_each_safe(ofdpa->fdb_tbl, bkt, tmp, found, entry) { | |
2763 | if (found->key.ofdpa_port != ofdpa_port) | |
2764 | continue; | |
2765 | ether_addr_copy(fdb->addr, found->key.addr); | |
2766 | fdb->ndm_state = NUD_REACHABLE; | |
2767 | fdb->vid = ofdpa_port_vlan_to_vid(ofdpa_port, | |
2768 | found->key.vlan_id); | |
2769 | err = cb(&fdb->obj); | |
2770 | if (err) | |
2771 | break; | |
2772 | } | |
2773 | spin_unlock_irqrestore(&ofdpa->fdb_tbl_lock, lock_flags); | |
2774 | ||
2775 | return err; | |
2776 | } | |
2777 | ||
2778 | static int ofdpa_port_bridge_join(struct ofdpa_port *ofdpa_port, | |
2779 | struct net_device *bridge) | |
2780 | { | |
2781 | int err; | |
2782 | ||
2783 | /* Port is joining bridge, so the internal VLAN for the | |
2784 | * port is going to change to the bridge internal VLAN. | |
2785 | * Let's remove untagged VLAN (vid=0) from port and | |
2786 | * re-add once internal VLAN has changed. | |
2787 | */ | |
2788 | ||
2789 | err = ofdpa_port_vlan_del(ofdpa_port, OFDPA_UNTAGGED_VID, 0); | |
2790 | if (err) | |
2791 | return err; | |
2792 | ||
2793 | ofdpa_port_internal_vlan_id_put(ofdpa_port, | |
2794 | ofdpa_port->dev->ifindex); | |
2795 | ofdpa_port->internal_vlan_id = | |
2796 | ofdpa_port_internal_vlan_id_get(ofdpa_port, bridge->ifindex); | |
2797 | ||
2798 | ofdpa_port->bridge_dev = bridge; | |
3fbcdbf3 JP |
2799 | |
2800 | return ofdpa_port_vlan_add(ofdpa_port, NULL, OFDPA_UNTAGGED_VID, 0); | |
2801 | } | |
2802 | ||
2803 | static int ofdpa_port_bridge_leave(struct ofdpa_port *ofdpa_port) | |
2804 | { | |
2805 | int err; | |
2806 | ||
2807 | err = ofdpa_port_vlan_del(ofdpa_port, OFDPA_UNTAGGED_VID, 0); | |
2808 | if (err) | |
2809 | return err; | |
2810 | ||
2811 | ofdpa_port_internal_vlan_id_put(ofdpa_port, | |
2812 | ofdpa_port->bridge_dev->ifindex); | |
2813 | ofdpa_port->internal_vlan_id = | |
2814 | ofdpa_port_internal_vlan_id_get(ofdpa_port, | |
2815 | ofdpa_port->dev->ifindex); | |
2816 | ||
3fbcdbf3 JP |
2817 | ofdpa_port->bridge_dev = NULL; |
2818 | ||
2819 | err = ofdpa_port_vlan_add(ofdpa_port, NULL, OFDPA_UNTAGGED_VID, 0); | |
2820 | if (err) | |
2821 | return err; | |
2822 | ||
2823 | if (ofdpa_port->dev->flags & IFF_UP) | |
2824 | err = ofdpa_port_fwd_enable(ofdpa_port, 0); | |
2825 | ||
2826 | return err; | |
2827 | } | |
2828 | ||
2829 | static int ofdpa_port_ovs_changed(struct ofdpa_port *ofdpa_port, | |
2830 | struct net_device *master) | |
2831 | { | |
2832 | int err; | |
2833 | ||
2834 | ofdpa_port->bridge_dev = master; | |
2835 | ||
2836 | err = ofdpa_port_fwd_disable(ofdpa_port, 0); | |
2837 | if (err) | |
2838 | return err; | |
2839 | err = ofdpa_port_fwd_enable(ofdpa_port, 0); | |
2840 | ||
2841 | return err; | |
2842 | } | |
2843 | ||
2844 | static int ofdpa_port_master_linked(struct rocker_port *rocker_port, | |
2845 | struct net_device *master) | |
2846 | { | |
2847 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; | |
2848 | int err = 0; | |
2849 | ||
2850 | if (netif_is_bridge_master(master)) | |
2851 | err = ofdpa_port_bridge_join(ofdpa_port, master); | |
2852 | else if (netif_is_ovs_master(master)) | |
2853 | err = ofdpa_port_ovs_changed(ofdpa_port, master); | |
2854 | return err; | |
2855 | } | |
2856 | ||
2857 | static int ofdpa_port_master_unlinked(struct rocker_port *rocker_port, | |
2858 | struct net_device *master) | |
2859 | { | |
2860 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; | |
2861 | int err = 0; | |
2862 | ||
2863 | if (ofdpa_port_is_bridged(ofdpa_port)) | |
2864 | err = ofdpa_port_bridge_leave(ofdpa_port); | |
2865 | else if (ofdpa_port_is_ovsed(ofdpa_port)) | |
2866 | err = ofdpa_port_ovs_changed(ofdpa_port, NULL); | |
2867 | return err; | |
2868 | } | |
2869 | ||
2870 | static int ofdpa_port_neigh_update(struct rocker_port *rocker_port, | |
2871 | struct neighbour *n) | |
2872 | { | |
2873 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; | |
2874 | int flags = (n->nud_state & NUD_VALID ? 0 : OFDPA_OP_FLAG_REMOVE) | | |
2875 | OFDPA_OP_FLAG_NOWAIT; | |
2876 | __be32 ip_addr = *(__be32 *) n->primary_key; | |
2877 | ||
2878 | return ofdpa_port_ipv4_neigh(ofdpa_port, NULL, flags, ip_addr, n->ha); | |
2879 | } | |
2880 | ||
2881 | static int ofdpa_port_neigh_destroy(struct rocker_port *rocker_port, | |
2882 | struct neighbour *n) | |
2883 | { | |
2884 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; | |
2885 | int flags = OFDPA_OP_FLAG_REMOVE | OFDPA_OP_FLAG_NOWAIT; | |
2886 | __be32 ip_addr = *(__be32 *) n->primary_key; | |
2887 | ||
2888 | return ofdpa_port_ipv4_neigh(ofdpa_port, NULL, flags, ip_addr, n->ha); | |
2889 | } | |
2890 | ||
2891 | static int ofdpa_port_ev_mac_vlan_seen(struct rocker_port *rocker_port, | |
2892 | const unsigned char *addr, | |
2893 | __be16 vlan_id) | |
2894 | { | |
2895 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; | |
2896 | int flags = OFDPA_OP_FLAG_NOWAIT | OFDPA_OP_FLAG_LEARNED; | |
2897 | ||
2898 | if (ofdpa_port->stp_state != BR_STATE_LEARNING && | |
2899 | ofdpa_port->stp_state != BR_STATE_FORWARDING) | |
2900 | return 0; | |
2901 | ||
2902 | return ofdpa_port_fdb(ofdpa_port, NULL, addr, vlan_id, flags); | |
2903 | } | |
2904 | ||
936bd486 JP |
2905 | static struct ofdpa_port *ofdpa_port_dev_lower_find(struct net_device *dev, |
2906 | struct rocker *rocker) | |
2907 | { | |
2908 | struct rocker_port *rocker_port; | |
2909 | ||
2910 | rocker_port = rocker_port_dev_lower_find(dev, rocker); | |
2911 | return rocker_port ? rocker_port->wpriv : NULL; | |
2912 | } | |
2913 | ||
2914 | static int ofdpa_fib4_add(struct rocker *rocker, | |
2915 | const struct fib_entry_notifier_info *fen_info) | |
2916 | { | |
2917 | struct ofdpa *ofdpa = rocker->wpriv; | |
2918 | struct ofdpa_port *ofdpa_port; | |
2919 | int err; | |
2920 | ||
2921 | if (ofdpa->fib_aborted) | |
2922 | return 0; | |
2923 | ofdpa_port = ofdpa_port_dev_lower_find(fen_info->fi->fib_dev, rocker); | |
2924 | if (!ofdpa_port) | |
2925 | return 0; | |
2926 | err = ofdpa_port_fib_ipv4(ofdpa_port, NULL, htonl(fen_info->dst), | |
2927 | fen_info->dst_len, fen_info->fi, | |
2928 | fen_info->tb_id, 0); | |
2929 | if (err) | |
2930 | return err; | |
2931 | fib_info_offload_inc(fen_info->fi); | |
2932 | return 0; | |
2933 | } | |
2934 | ||
2935 | static int ofdpa_fib4_del(struct rocker *rocker, | |
2936 | const struct fib_entry_notifier_info *fen_info) | |
2937 | { | |
2938 | struct ofdpa *ofdpa = rocker->wpriv; | |
2939 | struct ofdpa_port *ofdpa_port; | |
2940 | ||
2941 | if (ofdpa->fib_aborted) | |
2942 | return 0; | |
2943 | ofdpa_port = ofdpa_port_dev_lower_find(fen_info->fi->fib_dev, rocker); | |
2944 | if (!ofdpa_port) | |
2945 | return 0; | |
2946 | fib_info_offload_dec(fen_info->fi); | |
2947 | return ofdpa_port_fib_ipv4(ofdpa_port, NULL, htonl(fen_info->dst), | |
2948 | fen_info->dst_len, fen_info->fi, | |
2949 | fen_info->tb_id, OFDPA_OP_FLAG_REMOVE); | |
2950 | } | |
2951 | ||
2952 | static void ofdpa_fib4_abort(struct rocker *rocker) | |
2953 | { | |
2954 | struct ofdpa *ofdpa = rocker->wpriv; | |
2955 | struct ofdpa_port *ofdpa_port; | |
2956 | struct ofdpa_flow_tbl_entry *flow_entry; | |
2957 | struct hlist_node *tmp; | |
2958 | unsigned long flags; | |
2959 | int bkt; | |
2960 | ||
2961 | if (ofdpa->fib_aborted) | |
2962 | return; | |
2963 | ||
2964 | spin_lock_irqsave(&ofdpa->flow_tbl_lock, flags); | |
2965 | hash_for_each_safe(ofdpa->flow_tbl, bkt, tmp, flow_entry, entry) { | |
2966 | if (flow_entry->key.tbl_id != | |
2967 | ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING) | |
2968 | continue; | |
2969 | ofdpa_port = ofdpa_port_dev_lower_find(flow_entry->fi->fib_dev, | |
2970 | rocker); | |
2971 | if (!ofdpa_port) | |
2972 | continue; | |
2973 | fib_info_offload_dec(flow_entry->fi); | |
2974 | ofdpa_flow_tbl_del(ofdpa_port, NULL, OFDPA_OP_FLAG_REMOVE, | |
2975 | flow_entry); | |
2976 | } | |
2977 | spin_unlock_irqrestore(&ofdpa->flow_tbl_lock, flags); | |
2978 | ofdpa->fib_aborted = true; | |
2979 | } | |
2980 | ||
e420114e JP |
2981 | struct rocker_world_ops rocker_ofdpa_ops = { |
2982 | .kind = "ofdpa", | |
2983 | .priv_size = sizeof(struct ofdpa), | |
2984 | .port_priv_size = sizeof(struct ofdpa_port), | |
2985 | .mode = ROCKER_PORT_MODE_OF_DPA, | |
3fbcdbf3 JP |
2986 | .init = ofdpa_init, |
2987 | .fini = ofdpa_fini, | |
2988 | .port_pre_init = ofdpa_port_pre_init, | |
2989 | .port_init = ofdpa_port_init, | |
2990 | .port_fini = ofdpa_port_fini, | |
2991 | .port_open = ofdpa_port_open, | |
2992 | .port_stop = ofdpa_port_stop, | |
2993 | .port_attr_stp_state_set = ofdpa_port_attr_stp_state_set, | |
2994 | .port_attr_bridge_flags_set = ofdpa_port_attr_bridge_flags_set, | |
2995 | .port_attr_bridge_flags_get = ofdpa_port_attr_bridge_flags_get, | |
2996 | .port_attr_bridge_ageing_time_set = ofdpa_port_attr_bridge_ageing_time_set, | |
2997 | .port_obj_vlan_add = ofdpa_port_obj_vlan_add, | |
2998 | .port_obj_vlan_del = ofdpa_port_obj_vlan_del, | |
2999 | .port_obj_vlan_dump = ofdpa_port_obj_vlan_dump, | |
3fbcdbf3 JP |
3000 | .port_obj_fdb_add = ofdpa_port_obj_fdb_add, |
3001 | .port_obj_fdb_del = ofdpa_port_obj_fdb_del, | |
3002 | .port_obj_fdb_dump = ofdpa_port_obj_fdb_dump, | |
3003 | .port_master_linked = ofdpa_port_master_linked, | |
3004 | .port_master_unlinked = ofdpa_port_master_unlinked, | |
3005 | .port_neigh_update = ofdpa_port_neigh_update, | |
3006 | .port_neigh_destroy = ofdpa_port_neigh_destroy, | |
3007 | .port_ev_mac_vlan_seen = ofdpa_port_ev_mac_vlan_seen, | |
936bd486 JP |
3008 | .fib4_add = ofdpa_fib4_add, |
3009 | .fib4_del = ofdpa_fib4_del, | |
3010 | .fib4_abort = ofdpa_fib4_abort, | |
e420114e | 3011 | }; |