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4b8ac966 JP |
1 | /* |
2 | * drivers/net/ethernet/rocker/rocker.c - Rocker switch device driver | |
3 | * Copyright (c) 2014 Jiri Pirko <jiri@resnulli.us> | |
4 | * Copyright (c) 2014 Scott Feldman <sfeldma@gmail.com> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | */ | |
11 | ||
12 | #include <linux/kernel.h> | |
13 | #include <linux/module.h> | |
14 | #include <linux/pci.h> | |
15 | #include <linux/interrupt.h> | |
16 | #include <linux/sched.h> | |
17 | #include <linux/wait.h> | |
18 | #include <linux/spinlock.h> | |
9f6bbf7c | 19 | #include <linux/hashtable.h> |
4b8ac966 JP |
20 | #include <linux/crc32.h> |
21 | #include <linux/sort.h> | |
22 | #include <linux/random.h> | |
23 | #include <linux/netdevice.h> | |
24 | #include <linux/inetdevice.h> | |
25 | #include <linux/skbuff.h> | |
26 | #include <linux/socket.h> | |
27 | #include <linux/etherdevice.h> | |
28 | #include <linux/ethtool.h> | |
29 | #include <linux/if_ether.h> | |
30 | #include <linux/if_vlan.h> | |
6c707945 | 31 | #include <linux/if_bridge.h> |
9f6bbf7c | 32 | #include <linux/bitops.h> |
db19170b | 33 | #include <linux/ctype.h> |
4b8ac966 JP |
34 | #include <net/switchdev.h> |
35 | #include <net/rtnetlink.h> | |
c1beeef7 SF |
36 | #include <net/ip_fib.h> |
37 | #include <net/netevent.h> | |
38 | #include <net/arp.h> | |
4b8ac966 JP |
39 | #include <asm-generic/io-64-nonatomic-lo-hi.h> |
40 | #include <generated/utsrelease.h> | |
41 | ||
42 | #include "rocker.h" | |
43 | ||
44 | static const char rocker_driver_name[] = "rocker"; | |
45 | ||
46 | static const struct pci_device_id rocker_pci_id_table[] = { | |
47 | {PCI_VDEVICE(REDHAT, PCI_DEVICE_ID_REDHAT_ROCKER), 0}, | |
48 | {0, } | |
49 | }; | |
50 | ||
9f6bbf7c SF |
51 | struct rocker_flow_tbl_key { |
52 | u32 priority; | |
53 | enum rocker_of_dpa_table_id tbl_id; | |
54 | union { | |
55 | struct { | |
4a6bb6d3 SF |
56 | u32 in_pport; |
57 | u32 in_pport_mask; | |
9f6bbf7c SF |
58 | enum rocker_of_dpa_table_id goto_tbl; |
59 | } ig_port; | |
60 | struct { | |
4a6bb6d3 | 61 | u32 in_pport; |
9f6bbf7c SF |
62 | __be16 vlan_id; |
63 | __be16 vlan_id_mask; | |
64 | enum rocker_of_dpa_table_id goto_tbl; | |
65 | bool untagged; | |
66 | __be16 new_vlan_id; | |
67 | } vlan; | |
68 | struct { | |
4a6bb6d3 SF |
69 | u32 in_pport; |
70 | u32 in_pport_mask; | |
9f6bbf7c SF |
71 | __be16 eth_type; |
72 | u8 eth_dst[ETH_ALEN]; | |
73 | u8 eth_dst_mask[ETH_ALEN]; | |
74 | __be16 vlan_id; | |
75 | __be16 vlan_id_mask; | |
76 | enum rocker_of_dpa_table_id goto_tbl; | |
77 | bool copy_to_cpu; | |
78 | } term_mac; | |
79 | struct { | |
80 | __be16 eth_type; | |
81 | __be32 dst4; | |
82 | __be32 dst4_mask; | |
83 | enum rocker_of_dpa_table_id goto_tbl; | |
84 | u32 group_id; | |
85 | } ucast_routing; | |
86 | struct { | |
87 | u8 eth_dst[ETH_ALEN]; | |
88 | u8 eth_dst_mask[ETH_ALEN]; | |
89 | int has_eth_dst; | |
90 | int has_eth_dst_mask; | |
91 | __be16 vlan_id; | |
92 | u32 tunnel_id; | |
93 | enum rocker_of_dpa_table_id goto_tbl; | |
94 | u32 group_id; | |
95 | bool copy_to_cpu; | |
96 | } bridge; | |
97 | struct { | |
4a6bb6d3 SF |
98 | u32 in_pport; |
99 | u32 in_pport_mask; | |
9f6bbf7c SF |
100 | u8 eth_src[ETH_ALEN]; |
101 | u8 eth_src_mask[ETH_ALEN]; | |
102 | u8 eth_dst[ETH_ALEN]; | |
103 | u8 eth_dst_mask[ETH_ALEN]; | |
104 | __be16 eth_type; | |
105 | __be16 vlan_id; | |
106 | __be16 vlan_id_mask; | |
107 | u8 ip_proto; | |
108 | u8 ip_proto_mask; | |
109 | u8 ip_tos; | |
110 | u8 ip_tos_mask; | |
111 | u32 group_id; | |
112 | } acl; | |
113 | }; | |
114 | }; | |
115 | ||
116 | struct rocker_flow_tbl_entry { | |
117 | struct hlist_node entry; | |
c1beeef7 | 118 | u32 cmd; |
9f6bbf7c SF |
119 | u64 cookie; |
120 | struct rocker_flow_tbl_key key; | |
c1beeef7 | 121 | size_t key_len; |
9f6bbf7c SF |
122 | u32 key_crc32; /* key */ |
123 | }; | |
124 | ||
125 | struct rocker_group_tbl_entry { | |
126 | struct hlist_node entry; | |
127 | u32 cmd; | |
128 | u32 group_id; /* key */ | |
129 | u16 group_count; | |
130 | u32 *group_ids; | |
131 | union { | |
132 | struct { | |
133 | u8 pop_vlan; | |
134 | } l2_interface; | |
135 | struct { | |
136 | u8 eth_src[ETH_ALEN]; | |
137 | u8 eth_dst[ETH_ALEN]; | |
138 | __be16 vlan_id; | |
139 | u32 group_id; | |
140 | } l2_rewrite; | |
141 | struct { | |
142 | u8 eth_src[ETH_ALEN]; | |
143 | u8 eth_dst[ETH_ALEN]; | |
144 | __be16 vlan_id; | |
145 | bool ttl_check; | |
146 | u32 group_id; | |
147 | } l3_unicast; | |
148 | }; | |
149 | }; | |
150 | ||
151 | struct rocker_fdb_tbl_entry { | |
152 | struct hlist_node entry; | |
153 | u32 key_crc32; /* key */ | |
154 | bool learned; | |
155 | struct rocker_fdb_tbl_key { | |
4a6bb6d3 | 156 | u32 pport; |
9f6bbf7c SF |
157 | u8 addr[ETH_ALEN]; |
158 | __be16 vlan_id; | |
159 | } key; | |
160 | }; | |
161 | ||
162 | struct rocker_internal_vlan_tbl_entry { | |
163 | struct hlist_node entry; | |
164 | int ifindex; /* key */ | |
165 | u32 ref_count; | |
166 | __be16 vlan_id; | |
167 | }; | |
168 | ||
c1beeef7 SF |
169 | struct rocker_neigh_tbl_entry { |
170 | struct hlist_node entry; | |
171 | __be32 ip_addr; /* key */ | |
172 | struct net_device *dev; | |
173 | u32 ref_count; | |
174 | u32 index; | |
175 | u8 eth_dst[ETH_ALEN]; | |
176 | bool ttl_check; | |
177 | }; | |
178 | ||
4b8ac966 JP |
179 | struct rocker_desc_info { |
180 | char *data; /* mapped */ | |
181 | size_t data_size; | |
182 | size_t tlv_size; | |
183 | struct rocker_desc *desc; | |
184 | DEFINE_DMA_UNMAP_ADDR(mapaddr); | |
185 | }; | |
186 | ||
187 | struct rocker_dma_ring_info { | |
188 | size_t size; | |
189 | u32 head; | |
190 | u32 tail; | |
191 | struct rocker_desc *desc; /* mapped */ | |
192 | dma_addr_t mapaddr; | |
193 | struct rocker_desc_info *desc_info; | |
194 | unsigned int type; | |
195 | }; | |
196 | ||
197 | struct rocker; | |
198 | ||
9f6bbf7c SF |
199 | enum { |
200 | ROCKER_CTRL_LINK_LOCAL_MCAST, | |
201 | ROCKER_CTRL_LOCAL_ARP, | |
202 | ROCKER_CTRL_IPV4_MCAST, | |
203 | ROCKER_CTRL_IPV6_MCAST, | |
204 | ROCKER_CTRL_DFLT_BRIDGING, | |
205 | ROCKER_CTRL_MAX, | |
206 | }; | |
207 | ||
208 | #define ROCKER_INTERNAL_VLAN_ID_BASE 0x0f00 | |
209 | #define ROCKER_N_INTERNAL_VLANS 255 | |
210 | #define ROCKER_VLAN_BITMAP_LEN BITS_TO_LONGS(VLAN_N_VID) | |
211 | #define ROCKER_INTERNAL_VLAN_BITMAP_LEN BITS_TO_LONGS(ROCKER_N_INTERNAL_VLANS) | |
212 | ||
4b8ac966 JP |
213 | struct rocker_port { |
214 | struct net_device *dev; | |
6c707945 | 215 | struct net_device *bridge_dev; |
4b8ac966 JP |
216 | struct rocker *rocker; |
217 | unsigned int port_number; | |
4a6bb6d3 | 218 | u32 pport; |
9f6bbf7c | 219 | __be16 internal_vlan_id; |
6c707945 | 220 | int stp_state; |
5111f80c | 221 | u32 brport_flags; |
9f6bbf7c SF |
222 | bool ctrls[ROCKER_CTRL_MAX]; |
223 | unsigned long vlan_bitmap[ROCKER_VLAN_BITMAP_LEN]; | |
4b8ac966 JP |
224 | struct napi_struct napi_tx; |
225 | struct napi_struct napi_rx; | |
226 | struct rocker_dma_ring_info tx_ring; | |
227 | struct rocker_dma_ring_info rx_ring; | |
c4f20321 | 228 | struct list_head trans_mem; |
4b8ac966 JP |
229 | }; |
230 | ||
231 | struct rocker { | |
232 | struct pci_dev *pdev; | |
233 | u8 __iomem *hw_addr; | |
234 | struct msix_entry *msix_entries; | |
235 | unsigned int port_count; | |
236 | struct rocker_port **ports; | |
237 | struct { | |
238 | u64 id; | |
239 | } hw; | |
240 | spinlock_t cmd_ring_lock; | |
241 | struct rocker_dma_ring_info cmd_ring; | |
242 | struct rocker_dma_ring_info event_ring; | |
9f6bbf7c SF |
243 | DECLARE_HASHTABLE(flow_tbl, 16); |
244 | spinlock_t flow_tbl_lock; | |
245 | u64 flow_tbl_next_cookie; | |
246 | DECLARE_HASHTABLE(group_tbl, 16); | |
247 | spinlock_t group_tbl_lock; | |
248 | DECLARE_HASHTABLE(fdb_tbl, 16); | |
249 | spinlock_t fdb_tbl_lock; | |
250 | unsigned long internal_vlan_bitmap[ROCKER_INTERNAL_VLAN_BITMAP_LEN]; | |
251 | DECLARE_HASHTABLE(internal_vlan_tbl, 8); | |
252 | spinlock_t internal_vlan_tbl_lock; | |
c1beeef7 SF |
253 | DECLARE_HASHTABLE(neigh_tbl, 16); |
254 | spinlock_t neigh_tbl_lock; | |
255 | u32 neigh_tbl_next_index; | |
9f6bbf7c SF |
256 | }; |
257 | ||
258 | static const u8 zero_mac[ETH_ALEN] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; | |
259 | static const u8 ff_mac[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; | |
260 | static const u8 ll_mac[ETH_ALEN] = { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x00 }; | |
261 | static const u8 ll_mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0 }; | |
262 | static const u8 mcast_mac[ETH_ALEN] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 }; | |
263 | static const u8 ipv4_mcast[ETH_ALEN] = { 0x01, 0x00, 0x5e, 0x00, 0x00, 0x00 }; | |
264 | static const u8 ipv4_mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0x80, 0x00, 0x00 }; | |
265 | static const u8 ipv6_mcast[ETH_ALEN] = { 0x33, 0x33, 0x00, 0x00, 0x00, 0x00 }; | |
266 | static const u8 ipv6_mask[ETH_ALEN] = { 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }; | |
267 | ||
268 | /* Rocker priority levels for flow table entries. Higher | |
269 | * priority match takes precedence over lower priority match. | |
270 | */ | |
271 | ||
272 | enum { | |
273 | ROCKER_PRIORITY_UNKNOWN = 0, | |
274 | ROCKER_PRIORITY_IG_PORT = 1, | |
275 | ROCKER_PRIORITY_VLAN = 1, | |
276 | ROCKER_PRIORITY_TERM_MAC_UCAST = 0, | |
277 | ROCKER_PRIORITY_TERM_MAC_MCAST = 1, | |
9f6bbf7c SF |
278 | ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_EXACT = 1, |
279 | ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_WILD = 2, | |
280 | ROCKER_PRIORITY_BRIDGING_VLAN = 3, | |
281 | ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_EXACT = 1, | |
282 | ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_WILD = 2, | |
283 | ROCKER_PRIORITY_BRIDGING_TENANT = 3, | |
284 | ROCKER_PRIORITY_ACL_CTRL = 3, | |
285 | ROCKER_PRIORITY_ACL_NORMAL = 2, | |
286 | ROCKER_PRIORITY_ACL_DFLT = 1, | |
4b8ac966 JP |
287 | }; |
288 | ||
9f6bbf7c SF |
289 | static bool rocker_vlan_id_is_internal(__be16 vlan_id) |
290 | { | |
291 | u16 start = ROCKER_INTERNAL_VLAN_ID_BASE; | |
292 | u16 end = 0xffe; | |
293 | u16 _vlan_id = ntohs(vlan_id); | |
294 | ||
295 | return (_vlan_id >= start && _vlan_id <= end); | |
296 | } | |
297 | ||
298 | static __be16 rocker_port_vid_to_vlan(struct rocker_port *rocker_port, | |
299 | u16 vid, bool *pop_vlan) | |
300 | { | |
301 | __be16 vlan_id; | |
302 | ||
303 | if (pop_vlan) | |
304 | *pop_vlan = false; | |
305 | vlan_id = htons(vid); | |
306 | if (!vlan_id) { | |
307 | vlan_id = rocker_port->internal_vlan_id; | |
308 | if (pop_vlan) | |
309 | *pop_vlan = true; | |
310 | } | |
311 | ||
312 | return vlan_id; | |
313 | } | |
314 | ||
6c707945 SF |
315 | static u16 rocker_port_vlan_to_vid(struct rocker_port *rocker_port, |
316 | __be16 vlan_id) | |
317 | { | |
318 | if (rocker_vlan_id_is_internal(vlan_id)) | |
319 | return 0; | |
320 | ||
321 | return ntohs(vlan_id); | |
322 | } | |
323 | ||
324 | static bool rocker_port_is_bridged(struct rocker_port *rocker_port) | |
325 | { | |
326 | return !!rocker_port->bridge_dev; | |
327 | } | |
328 | ||
c4f20321 SF |
329 | static void *__rocker_port_mem_alloc(struct rocker_port *rocker_port, |
330 | enum switchdev_trans trans, size_t size) | |
331 | { | |
332 | struct list_head *elem = NULL; | |
333 | ||
334 | /* If in transaction prepare phase, allocate the memory | |
335 | * and enqueue it on a per-port list. If in transaction | |
336 | * commit phase, dequeue the memory from the per-port list | |
337 | * rather than re-allocating the memory. The idea is the | |
338 | * driver code paths for prepare and commit are identical | |
339 | * so the memory allocated in the prepare phase is the | |
340 | * memory used in the commit phase. | |
341 | */ | |
342 | ||
343 | switch (trans) { | |
344 | case SWITCHDEV_TRANS_PREPARE: | |
345 | elem = kzalloc(size + sizeof(*elem), GFP_KERNEL); | |
346 | if (!elem) | |
347 | return NULL; | |
348 | list_add_tail(elem, &rocker_port->trans_mem); | |
349 | break; | |
350 | case SWITCHDEV_TRANS_COMMIT: | |
351 | BUG_ON(list_empty(&rocker_port->trans_mem)); | |
352 | elem = rocker_port->trans_mem.next; | |
353 | list_del_init(elem); | |
354 | break; | |
355 | case SWITCHDEV_TRANS_NONE: | |
356 | elem = kzalloc(size + sizeof(*elem), GFP_KERNEL); | |
357 | if (elem) | |
358 | INIT_LIST_HEAD(elem); | |
359 | break; | |
360 | default: | |
361 | break; | |
362 | } | |
363 | ||
364 | return elem ? elem + 1 : NULL; | |
365 | } | |
366 | ||
367 | static void *rocker_port_kzalloc(struct rocker_port *rocker_port, | |
368 | enum switchdev_trans trans, size_t size) | |
369 | { | |
370 | return __rocker_port_mem_alloc(rocker_port, trans, size); | |
371 | } | |
372 | ||
373 | static void *rocker_port_kcalloc(struct rocker_port *rocker_port, | |
374 | enum switchdev_trans trans, size_t n, | |
375 | size_t size) | |
376 | { | |
377 | return __rocker_port_mem_alloc(rocker_port, trans, n * size); | |
378 | } | |
379 | ||
380 | static void rocker_port_kfree(struct rocker_port *rocker_port, | |
381 | enum switchdev_trans trans, const void *mem) | |
382 | { | |
383 | struct list_head *elem; | |
384 | ||
385 | /* Frees are ignored if in transaction prepare phase. The | |
386 | * memory remains on the per-port list until freed in the | |
387 | * commit phase. | |
388 | */ | |
389 | ||
390 | if (trans == SWITCHDEV_TRANS_PREPARE) | |
391 | return; | |
392 | ||
393 | elem = (struct list_head *)mem - 1; | |
394 | BUG_ON(!list_empty(elem)); | |
395 | kfree(elem); | |
396 | } | |
397 | ||
4b8ac966 JP |
398 | struct rocker_wait { |
399 | wait_queue_head_t wait; | |
400 | bool done; | |
4b8ac966 JP |
401 | }; |
402 | ||
403 | static void rocker_wait_reset(struct rocker_wait *wait) | |
404 | { | |
405 | wait->done = false; | |
4b8ac966 JP |
406 | } |
407 | ||
408 | static void rocker_wait_init(struct rocker_wait *wait) | |
409 | { | |
410 | init_waitqueue_head(&wait->wait); | |
411 | rocker_wait_reset(wait); | |
412 | } | |
413 | ||
c4f20321 SF |
414 | static struct rocker_wait *rocker_wait_create(struct rocker_port *rocker_port, |
415 | enum switchdev_trans trans) | |
4b8ac966 JP |
416 | { |
417 | struct rocker_wait *wait; | |
418 | ||
c4f20321 | 419 | wait = rocker_port_kzalloc(rocker_port, trans, sizeof(*wait)); |
4b8ac966 JP |
420 | if (!wait) |
421 | return NULL; | |
422 | rocker_wait_init(wait); | |
423 | return wait; | |
424 | } | |
425 | ||
c4f20321 SF |
426 | static void rocker_wait_destroy(struct rocker_port *rocker_port, |
427 | enum switchdev_trans trans, | |
428 | struct rocker_wait *wait) | |
4b8ac966 | 429 | { |
c4f20321 | 430 | rocker_port_kfree(rocker_port, trans, wait); |
4b8ac966 JP |
431 | } |
432 | ||
433 | static bool rocker_wait_event_timeout(struct rocker_wait *wait, | |
434 | unsigned long timeout) | |
435 | { | |
436 | wait_event_timeout(wait->wait, wait->done, HZ / 10); | |
437 | if (!wait->done) | |
438 | return false; | |
439 | return true; | |
440 | } | |
441 | ||
442 | static void rocker_wait_wake_up(struct rocker_wait *wait) | |
443 | { | |
444 | wait->done = true; | |
445 | wake_up(&wait->wait); | |
446 | } | |
447 | ||
448 | static u32 rocker_msix_vector(struct rocker *rocker, unsigned int vector) | |
449 | { | |
450 | return rocker->msix_entries[vector].vector; | |
451 | } | |
452 | ||
453 | static u32 rocker_msix_tx_vector(struct rocker_port *rocker_port) | |
454 | { | |
455 | return rocker_msix_vector(rocker_port->rocker, | |
456 | ROCKER_MSIX_VEC_TX(rocker_port->port_number)); | |
457 | } | |
458 | ||
459 | static u32 rocker_msix_rx_vector(struct rocker_port *rocker_port) | |
460 | { | |
461 | return rocker_msix_vector(rocker_port->rocker, | |
462 | ROCKER_MSIX_VEC_RX(rocker_port->port_number)); | |
463 | } | |
464 | ||
465 | #define rocker_write32(rocker, reg, val) \ | |
466 | writel((val), (rocker)->hw_addr + (ROCKER_ ## reg)) | |
467 | #define rocker_read32(rocker, reg) \ | |
468 | readl((rocker)->hw_addr + (ROCKER_ ## reg)) | |
469 | #define rocker_write64(rocker, reg, val) \ | |
470 | writeq((val), (rocker)->hw_addr + (ROCKER_ ## reg)) | |
471 | #define rocker_read64(rocker, reg) \ | |
472 | readq((rocker)->hw_addr + (ROCKER_ ## reg)) | |
473 | ||
474 | /***************************** | |
475 | * HW basic testing functions | |
476 | *****************************/ | |
477 | ||
478 | static int rocker_reg_test(struct rocker *rocker) | |
479 | { | |
480 | struct pci_dev *pdev = rocker->pdev; | |
481 | u64 test_reg; | |
482 | u64 rnd; | |
483 | ||
484 | rnd = prandom_u32(); | |
485 | rnd >>= 1; | |
486 | rocker_write32(rocker, TEST_REG, rnd); | |
487 | test_reg = rocker_read32(rocker, TEST_REG); | |
488 | if (test_reg != rnd * 2) { | |
489 | dev_err(&pdev->dev, "unexpected 32bit register value %08llx, expected %08llx\n", | |
490 | test_reg, rnd * 2); | |
491 | return -EIO; | |
492 | } | |
493 | ||
494 | rnd = prandom_u32(); | |
495 | rnd <<= 31; | |
496 | rnd |= prandom_u32(); | |
497 | rocker_write64(rocker, TEST_REG64, rnd); | |
498 | test_reg = rocker_read64(rocker, TEST_REG64); | |
499 | if (test_reg != rnd * 2) { | |
500 | dev_err(&pdev->dev, "unexpected 64bit register value %16llx, expected %16llx\n", | |
501 | test_reg, rnd * 2); | |
502 | return -EIO; | |
503 | } | |
504 | ||
505 | return 0; | |
506 | } | |
507 | ||
508 | static int rocker_dma_test_one(struct rocker *rocker, struct rocker_wait *wait, | |
509 | u32 test_type, dma_addr_t dma_handle, | |
510 | unsigned char *buf, unsigned char *expect, | |
511 | size_t size) | |
512 | { | |
513 | struct pci_dev *pdev = rocker->pdev; | |
514 | int i; | |
515 | ||
516 | rocker_wait_reset(wait); | |
517 | rocker_write32(rocker, TEST_DMA_CTRL, test_type); | |
518 | ||
519 | if (!rocker_wait_event_timeout(wait, HZ / 10)) { | |
520 | dev_err(&pdev->dev, "no interrupt received within a timeout\n"); | |
521 | return -EIO; | |
522 | } | |
523 | ||
524 | for (i = 0; i < size; i++) { | |
525 | if (buf[i] != expect[i]) { | |
526 | dev_err(&pdev->dev, "unexpected memory content %02x at byte %x\n, %02x expected", | |
527 | buf[i], i, expect[i]); | |
528 | return -EIO; | |
529 | } | |
530 | } | |
531 | return 0; | |
532 | } | |
533 | ||
534 | #define ROCKER_TEST_DMA_BUF_SIZE (PAGE_SIZE * 4) | |
535 | #define ROCKER_TEST_DMA_FILL_PATTERN 0x96 | |
536 | ||
537 | static int rocker_dma_test_offset(struct rocker *rocker, | |
538 | struct rocker_wait *wait, int offset) | |
539 | { | |
540 | struct pci_dev *pdev = rocker->pdev; | |
541 | unsigned char *alloc; | |
542 | unsigned char *buf; | |
543 | unsigned char *expect; | |
544 | dma_addr_t dma_handle; | |
545 | int i; | |
546 | int err; | |
547 | ||
548 | alloc = kzalloc(ROCKER_TEST_DMA_BUF_SIZE * 2 + offset, | |
549 | GFP_KERNEL | GFP_DMA); | |
550 | if (!alloc) | |
551 | return -ENOMEM; | |
552 | buf = alloc + offset; | |
553 | expect = buf + ROCKER_TEST_DMA_BUF_SIZE; | |
554 | ||
555 | dma_handle = pci_map_single(pdev, buf, ROCKER_TEST_DMA_BUF_SIZE, | |
556 | PCI_DMA_BIDIRECTIONAL); | |
557 | if (pci_dma_mapping_error(pdev, dma_handle)) { | |
558 | err = -EIO; | |
559 | goto free_alloc; | |
560 | } | |
561 | ||
562 | rocker_write64(rocker, TEST_DMA_ADDR, dma_handle); | |
563 | rocker_write32(rocker, TEST_DMA_SIZE, ROCKER_TEST_DMA_BUF_SIZE); | |
564 | ||
565 | memset(expect, ROCKER_TEST_DMA_FILL_PATTERN, ROCKER_TEST_DMA_BUF_SIZE); | |
566 | err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_FILL, | |
567 | dma_handle, buf, expect, | |
568 | ROCKER_TEST_DMA_BUF_SIZE); | |
569 | if (err) | |
570 | goto unmap; | |
571 | ||
572 | memset(expect, 0, ROCKER_TEST_DMA_BUF_SIZE); | |
573 | err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_CLEAR, | |
574 | dma_handle, buf, expect, | |
575 | ROCKER_TEST_DMA_BUF_SIZE); | |
576 | if (err) | |
577 | goto unmap; | |
578 | ||
579 | prandom_bytes(buf, ROCKER_TEST_DMA_BUF_SIZE); | |
580 | for (i = 0; i < ROCKER_TEST_DMA_BUF_SIZE; i++) | |
581 | expect[i] = ~buf[i]; | |
582 | err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_INVERT, | |
583 | dma_handle, buf, expect, | |
584 | ROCKER_TEST_DMA_BUF_SIZE); | |
585 | if (err) | |
586 | goto unmap; | |
587 | ||
588 | unmap: | |
589 | pci_unmap_single(pdev, dma_handle, ROCKER_TEST_DMA_BUF_SIZE, | |
590 | PCI_DMA_BIDIRECTIONAL); | |
591 | free_alloc: | |
592 | kfree(alloc); | |
593 | ||
594 | return err; | |
595 | } | |
596 | ||
597 | static int rocker_dma_test(struct rocker *rocker, struct rocker_wait *wait) | |
598 | { | |
599 | int i; | |
600 | int err; | |
601 | ||
602 | for (i = 0; i < 8; i++) { | |
603 | err = rocker_dma_test_offset(rocker, wait, i); | |
604 | if (err) | |
605 | return err; | |
606 | } | |
607 | return 0; | |
608 | } | |
609 | ||
610 | static irqreturn_t rocker_test_irq_handler(int irq, void *dev_id) | |
611 | { | |
612 | struct rocker_wait *wait = dev_id; | |
613 | ||
614 | rocker_wait_wake_up(wait); | |
615 | ||
616 | return IRQ_HANDLED; | |
617 | } | |
618 | ||
619 | static int rocker_basic_hw_test(struct rocker *rocker) | |
620 | { | |
621 | struct pci_dev *pdev = rocker->pdev; | |
622 | struct rocker_wait wait; | |
623 | int err; | |
624 | ||
625 | err = rocker_reg_test(rocker); | |
626 | if (err) { | |
627 | dev_err(&pdev->dev, "reg test failed\n"); | |
628 | return err; | |
629 | } | |
630 | ||
631 | err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_TEST), | |
632 | rocker_test_irq_handler, 0, | |
633 | rocker_driver_name, &wait); | |
634 | if (err) { | |
635 | dev_err(&pdev->dev, "cannot assign test irq\n"); | |
636 | return err; | |
637 | } | |
638 | ||
639 | rocker_wait_init(&wait); | |
640 | rocker_write32(rocker, TEST_IRQ, ROCKER_MSIX_VEC_TEST); | |
641 | ||
642 | if (!rocker_wait_event_timeout(&wait, HZ / 10)) { | |
643 | dev_err(&pdev->dev, "no interrupt received within a timeout\n"); | |
644 | err = -EIO; | |
645 | goto free_irq; | |
646 | } | |
647 | ||
648 | err = rocker_dma_test(rocker, &wait); | |
649 | if (err) | |
650 | dev_err(&pdev->dev, "dma test failed\n"); | |
651 | ||
652 | free_irq: | |
653 | free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_TEST), &wait); | |
654 | return err; | |
655 | } | |
656 | ||
657 | /****** | |
658 | * TLV | |
659 | ******/ | |
660 | ||
661 | #define ROCKER_TLV_ALIGNTO 8U | |
662 | #define ROCKER_TLV_ALIGN(len) \ | |
663 | (((len) + ROCKER_TLV_ALIGNTO - 1) & ~(ROCKER_TLV_ALIGNTO - 1)) | |
664 | #define ROCKER_TLV_HDRLEN ROCKER_TLV_ALIGN(sizeof(struct rocker_tlv)) | |
665 | ||
666 | /* <------- ROCKER_TLV_HDRLEN -------> <--- ROCKER_TLV_ALIGN(payload) ---> | |
667 | * +-----------------------------+- - -+- - - - - - - - - - - - - - -+- - -+ | |
668 | * | Header | Pad | Payload | Pad | | |
669 | * | (struct rocker_tlv) | ing | | ing | | |
670 | * +-----------------------------+- - -+- - - - - - - - - - - - - - -+- - -+ | |
671 | * <--------------------------- tlv->len --------------------------> | |
672 | */ | |
673 | ||
674 | static struct rocker_tlv *rocker_tlv_next(const struct rocker_tlv *tlv, | |
675 | int *remaining) | |
676 | { | |
677 | int totlen = ROCKER_TLV_ALIGN(tlv->len); | |
678 | ||
679 | *remaining -= totlen; | |
680 | return (struct rocker_tlv *) ((char *) tlv + totlen); | |
681 | } | |
682 | ||
683 | static int rocker_tlv_ok(const struct rocker_tlv *tlv, int remaining) | |
684 | { | |
685 | return remaining >= (int) ROCKER_TLV_HDRLEN && | |
686 | tlv->len >= ROCKER_TLV_HDRLEN && | |
687 | tlv->len <= remaining; | |
688 | } | |
689 | ||
690 | #define rocker_tlv_for_each(pos, head, len, rem) \ | |
691 | for (pos = head, rem = len; \ | |
692 | rocker_tlv_ok(pos, rem); \ | |
693 | pos = rocker_tlv_next(pos, &(rem))) | |
694 | ||
695 | #define rocker_tlv_for_each_nested(pos, tlv, rem) \ | |
696 | rocker_tlv_for_each(pos, rocker_tlv_data(tlv), \ | |
697 | rocker_tlv_len(tlv), rem) | |
698 | ||
699 | static int rocker_tlv_attr_size(int payload) | |
700 | { | |
701 | return ROCKER_TLV_HDRLEN + payload; | |
702 | } | |
703 | ||
704 | static int rocker_tlv_total_size(int payload) | |
705 | { | |
706 | return ROCKER_TLV_ALIGN(rocker_tlv_attr_size(payload)); | |
707 | } | |
708 | ||
709 | static int rocker_tlv_padlen(int payload) | |
710 | { | |
711 | return rocker_tlv_total_size(payload) - rocker_tlv_attr_size(payload); | |
712 | } | |
713 | ||
714 | static int rocker_tlv_type(const struct rocker_tlv *tlv) | |
715 | { | |
716 | return tlv->type; | |
717 | } | |
718 | ||
719 | static void *rocker_tlv_data(const struct rocker_tlv *tlv) | |
720 | { | |
721 | return (char *) tlv + ROCKER_TLV_HDRLEN; | |
722 | } | |
723 | ||
724 | static int rocker_tlv_len(const struct rocker_tlv *tlv) | |
725 | { | |
726 | return tlv->len - ROCKER_TLV_HDRLEN; | |
727 | } | |
728 | ||
729 | static u8 rocker_tlv_get_u8(const struct rocker_tlv *tlv) | |
730 | { | |
731 | return *(u8 *) rocker_tlv_data(tlv); | |
732 | } | |
733 | ||
734 | static u16 rocker_tlv_get_u16(const struct rocker_tlv *tlv) | |
735 | { | |
736 | return *(u16 *) rocker_tlv_data(tlv); | |
737 | } | |
738 | ||
9b03c71f JP |
739 | static __be16 rocker_tlv_get_be16(const struct rocker_tlv *tlv) |
740 | { | |
741 | return *(__be16 *) rocker_tlv_data(tlv); | |
742 | } | |
743 | ||
4b8ac966 JP |
744 | static u32 rocker_tlv_get_u32(const struct rocker_tlv *tlv) |
745 | { | |
746 | return *(u32 *) rocker_tlv_data(tlv); | |
747 | } | |
748 | ||
749 | static u64 rocker_tlv_get_u64(const struct rocker_tlv *tlv) | |
750 | { | |
751 | return *(u64 *) rocker_tlv_data(tlv); | |
752 | } | |
753 | ||
754 | static void rocker_tlv_parse(struct rocker_tlv **tb, int maxtype, | |
755 | const char *buf, int buf_len) | |
756 | { | |
757 | const struct rocker_tlv *tlv; | |
758 | const struct rocker_tlv *head = (const struct rocker_tlv *) buf; | |
759 | int rem; | |
760 | ||
761 | memset(tb, 0, sizeof(struct rocker_tlv *) * (maxtype + 1)); | |
762 | ||
763 | rocker_tlv_for_each(tlv, head, buf_len, rem) { | |
764 | u32 type = rocker_tlv_type(tlv); | |
765 | ||
766 | if (type > 0 && type <= maxtype) | |
767 | tb[type] = (struct rocker_tlv *) tlv; | |
768 | } | |
769 | } | |
770 | ||
771 | static void rocker_tlv_parse_nested(struct rocker_tlv **tb, int maxtype, | |
772 | const struct rocker_tlv *tlv) | |
773 | { | |
774 | rocker_tlv_parse(tb, maxtype, rocker_tlv_data(tlv), | |
775 | rocker_tlv_len(tlv)); | |
776 | } | |
777 | ||
778 | static void rocker_tlv_parse_desc(struct rocker_tlv **tb, int maxtype, | |
779 | struct rocker_desc_info *desc_info) | |
780 | { | |
781 | rocker_tlv_parse(tb, maxtype, desc_info->data, | |
782 | desc_info->desc->tlv_size); | |
783 | } | |
784 | ||
785 | static struct rocker_tlv *rocker_tlv_start(struct rocker_desc_info *desc_info) | |
786 | { | |
787 | return (struct rocker_tlv *) ((char *) desc_info->data + | |
788 | desc_info->tlv_size); | |
789 | } | |
790 | ||
791 | static int rocker_tlv_put(struct rocker_desc_info *desc_info, | |
792 | int attrtype, int attrlen, const void *data) | |
793 | { | |
794 | int tail_room = desc_info->data_size - desc_info->tlv_size; | |
795 | int total_size = rocker_tlv_total_size(attrlen); | |
796 | struct rocker_tlv *tlv; | |
797 | ||
798 | if (unlikely(tail_room < total_size)) | |
799 | return -EMSGSIZE; | |
800 | ||
801 | tlv = rocker_tlv_start(desc_info); | |
802 | desc_info->tlv_size += total_size; | |
803 | tlv->type = attrtype; | |
804 | tlv->len = rocker_tlv_attr_size(attrlen); | |
805 | memcpy(rocker_tlv_data(tlv), data, attrlen); | |
806 | memset((char *) tlv + tlv->len, 0, rocker_tlv_padlen(attrlen)); | |
807 | return 0; | |
808 | } | |
809 | ||
810 | static int rocker_tlv_put_u8(struct rocker_desc_info *desc_info, | |
811 | int attrtype, u8 value) | |
812 | { | |
813 | return rocker_tlv_put(desc_info, attrtype, sizeof(u8), &value); | |
814 | } | |
815 | ||
816 | static int rocker_tlv_put_u16(struct rocker_desc_info *desc_info, | |
817 | int attrtype, u16 value) | |
818 | { | |
819 | return rocker_tlv_put(desc_info, attrtype, sizeof(u16), &value); | |
820 | } | |
821 | ||
9b03c71f JP |
822 | static int rocker_tlv_put_be16(struct rocker_desc_info *desc_info, |
823 | int attrtype, __be16 value) | |
824 | { | |
825 | return rocker_tlv_put(desc_info, attrtype, sizeof(__be16), &value); | |
826 | } | |
827 | ||
4b8ac966 JP |
828 | static int rocker_tlv_put_u32(struct rocker_desc_info *desc_info, |
829 | int attrtype, u32 value) | |
830 | { | |
831 | return rocker_tlv_put(desc_info, attrtype, sizeof(u32), &value); | |
832 | } | |
833 | ||
9b03c71f JP |
834 | static int rocker_tlv_put_be32(struct rocker_desc_info *desc_info, |
835 | int attrtype, __be32 value) | |
836 | { | |
837 | return rocker_tlv_put(desc_info, attrtype, sizeof(__be32), &value); | |
838 | } | |
839 | ||
4b8ac966 JP |
840 | static int rocker_tlv_put_u64(struct rocker_desc_info *desc_info, |
841 | int attrtype, u64 value) | |
842 | { | |
843 | return rocker_tlv_put(desc_info, attrtype, sizeof(u64), &value); | |
844 | } | |
845 | ||
846 | static struct rocker_tlv * | |
847 | rocker_tlv_nest_start(struct rocker_desc_info *desc_info, int attrtype) | |
848 | { | |
849 | struct rocker_tlv *start = rocker_tlv_start(desc_info); | |
850 | ||
851 | if (rocker_tlv_put(desc_info, attrtype, 0, NULL) < 0) | |
852 | return NULL; | |
853 | ||
854 | return start; | |
855 | } | |
856 | ||
857 | static void rocker_tlv_nest_end(struct rocker_desc_info *desc_info, | |
858 | struct rocker_tlv *start) | |
859 | { | |
860 | start->len = (char *) rocker_tlv_start(desc_info) - (char *) start; | |
861 | } | |
862 | ||
863 | static void rocker_tlv_nest_cancel(struct rocker_desc_info *desc_info, | |
864 | struct rocker_tlv *start) | |
865 | { | |
866 | desc_info->tlv_size = (char *) start - desc_info->data; | |
867 | } | |
868 | ||
869 | /****************************************** | |
870 | * DMA rings and descriptors manipulations | |
871 | ******************************************/ | |
872 | ||
873 | static u32 __pos_inc(u32 pos, size_t limit) | |
874 | { | |
875 | return ++pos == limit ? 0 : pos; | |
876 | } | |
877 | ||
878 | static int rocker_desc_err(struct rocker_desc_info *desc_info) | |
879 | { | |
7eb344f8 SF |
880 | int err = desc_info->desc->comp_err & ~ROCKER_DMA_DESC_COMP_ERR_GEN; |
881 | ||
882 | switch (err) { | |
883 | case ROCKER_OK: | |
884 | return 0; | |
885 | case -ROCKER_ENOENT: | |
886 | return -ENOENT; | |
887 | case -ROCKER_ENXIO: | |
888 | return -ENXIO; | |
889 | case -ROCKER_ENOMEM: | |
890 | return -ENOMEM; | |
891 | case -ROCKER_EEXIST: | |
892 | return -EEXIST; | |
893 | case -ROCKER_EINVAL: | |
894 | return -EINVAL; | |
895 | case -ROCKER_EMSGSIZE: | |
896 | return -EMSGSIZE; | |
897 | case -ROCKER_ENOTSUP: | |
898 | return -EOPNOTSUPP; | |
899 | case -ROCKER_ENOBUFS: | |
900 | return -ENOBUFS; | |
901 | } | |
902 | ||
903 | return -EINVAL; | |
4b8ac966 JP |
904 | } |
905 | ||
906 | static void rocker_desc_gen_clear(struct rocker_desc_info *desc_info) | |
907 | { | |
908 | desc_info->desc->comp_err &= ~ROCKER_DMA_DESC_COMP_ERR_GEN; | |
909 | } | |
910 | ||
911 | static bool rocker_desc_gen(struct rocker_desc_info *desc_info) | |
912 | { | |
913 | u32 comp_err = desc_info->desc->comp_err; | |
914 | ||
915 | return comp_err & ROCKER_DMA_DESC_COMP_ERR_GEN ? true : false; | |
916 | } | |
917 | ||
918 | static void *rocker_desc_cookie_ptr_get(struct rocker_desc_info *desc_info) | |
919 | { | |
adedf37b | 920 | return (void *)(uintptr_t)desc_info->desc->cookie; |
4b8ac966 JP |
921 | } |
922 | ||
923 | static void rocker_desc_cookie_ptr_set(struct rocker_desc_info *desc_info, | |
924 | void *ptr) | |
925 | { | |
adedf37b | 926 | desc_info->desc->cookie = (uintptr_t) ptr; |
4b8ac966 JP |
927 | } |
928 | ||
929 | static struct rocker_desc_info * | |
930 | rocker_desc_head_get(struct rocker_dma_ring_info *info) | |
931 | { | |
932 | static struct rocker_desc_info *desc_info; | |
933 | u32 head = __pos_inc(info->head, info->size); | |
934 | ||
935 | desc_info = &info->desc_info[info->head]; | |
936 | if (head == info->tail) | |
937 | return NULL; /* ring full */ | |
938 | desc_info->tlv_size = 0; | |
939 | return desc_info; | |
940 | } | |
941 | ||
942 | static void rocker_desc_commit(struct rocker_desc_info *desc_info) | |
943 | { | |
944 | desc_info->desc->buf_size = desc_info->data_size; | |
945 | desc_info->desc->tlv_size = desc_info->tlv_size; | |
946 | } | |
947 | ||
948 | static void rocker_desc_head_set(struct rocker *rocker, | |
949 | struct rocker_dma_ring_info *info, | |
950 | struct rocker_desc_info *desc_info) | |
951 | { | |
952 | u32 head = __pos_inc(info->head, info->size); | |
953 | ||
954 | BUG_ON(head == info->tail); | |
955 | rocker_desc_commit(desc_info); | |
956 | info->head = head; | |
957 | rocker_write32(rocker, DMA_DESC_HEAD(info->type), head); | |
958 | } | |
959 | ||
960 | static struct rocker_desc_info * | |
961 | rocker_desc_tail_get(struct rocker_dma_ring_info *info) | |
962 | { | |
963 | static struct rocker_desc_info *desc_info; | |
964 | ||
965 | if (info->tail == info->head) | |
966 | return NULL; /* nothing to be done between head and tail */ | |
967 | desc_info = &info->desc_info[info->tail]; | |
968 | if (!rocker_desc_gen(desc_info)) | |
969 | return NULL; /* gen bit not set, desc is not ready yet */ | |
970 | info->tail = __pos_inc(info->tail, info->size); | |
971 | desc_info->tlv_size = desc_info->desc->tlv_size; | |
972 | return desc_info; | |
973 | } | |
974 | ||
975 | static void rocker_dma_ring_credits_set(struct rocker *rocker, | |
976 | struct rocker_dma_ring_info *info, | |
977 | u32 credits) | |
978 | { | |
979 | if (credits) | |
980 | rocker_write32(rocker, DMA_DESC_CREDITS(info->type), credits); | |
981 | } | |
982 | ||
983 | static unsigned long rocker_dma_ring_size_fix(size_t size) | |
984 | { | |
985 | return max(ROCKER_DMA_SIZE_MIN, | |
986 | min(roundup_pow_of_two(size), ROCKER_DMA_SIZE_MAX)); | |
987 | } | |
988 | ||
989 | static int rocker_dma_ring_create(struct rocker *rocker, | |
990 | unsigned int type, | |
991 | size_t size, | |
992 | struct rocker_dma_ring_info *info) | |
993 | { | |
994 | int i; | |
995 | ||
996 | BUG_ON(size != rocker_dma_ring_size_fix(size)); | |
997 | info->size = size; | |
998 | info->type = type; | |
999 | info->head = 0; | |
1000 | info->tail = 0; | |
1001 | info->desc_info = kcalloc(info->size, sizeof(*info->desc_info), | |
1002 | GFP_KERNEL); | |
1003 | if (!info->desc_info) | |
1004 | return -ENOMEM; | |
1005 | ||
1006 | info->desc = pci_alloc_consistent(rocker->pdev, | |
1007 | info->size * sizeof(*info->desc), | |
1008 | &info->mapaddr); | |
1009 | if (!info->desc) { | |
1010 | kfree(info->desc_info); | |
1011 | return -ENOMEM; | |
1012 | } | |
1013 | ||
1014 | for (i = 0; i < info->size; i++) | |
1015 | info->desc_info[i].desc = &info->desc[i]; | |
1016 | ||
1017 | rocker_write32(rocker, DMA_DESC_CTRL(info->type), | |
1018 | ROCKER_DMA_DESC_CTRL_RESET); | |
1019 | rocker_write64(rocker, DMA_DESC_ADDR(info->type), info->mapaddr); | |
1020 | rocker_write32(rocker, DMA_DESC_SIZE(info->type), info->size); | |
1021 | ||
1022 | return 0; | |
1023 | } | |
1024 | ||
1025 | static void rocker_dma_ring_destroy(struct rocker *rocker, | |
1026 | struct rocker_dma_ring_info *info) | |
1027 | { | |
1028 | rocker_write64(rocker, DMA_DESC_ADDR(info->type), 0); | |
1029 | ||
1030 | pci_free_consistent(rocker->pdev, | |
1031 | info->size * sizeof(struct rocker_desc), | |
1032 | info->desc, info->mapaddr); | |
1033 | kfree(info->desc_info); | |
1034 | } | |
1035 | ||
1036 | static void rocker_dma_ring_pass_to_producer(struct rocker *rocker, | |
1037 | struct rocker_dma_ring_info *info) | |
1038 | { | |
1039 | int i; | |
1040 | ||
1041 | BUG_ON(info->head || info->tail); | |
1042 | ||
1043 | /* When ring is consumer, we need to advance head for each desc. | |
1044 | * That tells hw that the desc is ready to be used by it. | |
1045 | */ | |
1046 | for (i = 0; i < info->size - 1; i++) | |
1047 | rocker_desc_head_set(rocker, info, &info->desc_info[i]); | |
1048 | rocker_desc_commit(&info->desc_info[i]); | |
1049 | } | |
1050 | ||
1051 | static int rocker_dma_ring_bufs_alloc(struct rocker *rocker, | |
1052 | struct rocker_dma_ring_info *info, | |
1053 | int direction, size_t buf_size) | |
1054 | { | |
1055 | struct pci_dev *pdev = rocker->pdev; | |
1056 | int i; | |
1057 | int err; | |
1058 | ||
1059 | for (i = 0; i < info->size; i++) { | |
1060 | struct rocker_desc_info *desc_info = &info->desc_info[i]; | |
1061 | struct rocker_desc *desc = &info->desc[i]; | |
1062 | dma_addr_t dma_handle; | |
1063 | char *buf; | |
1064 | ||
1065 | buf = kzalloc(buf_size, GFP_KERNEL | GFP_DMA); | |
1066 | if (!buf) { | |
1067 | err = -ENOMEM; | |
1068 | goto rollback; | |
1069 | } | |
1070 | ||
1071 | dma_handle = pci_map_single(pdev, buf, buf_size, direction); | |
1072 | if (pci_dma_mapping_error(pdev, dma_handle)) { | |
1073 | kfree(buf); | |
1074 | err = -EIO; | |
1075 | goto rollback; | |
1076 | } | |
1077 | ||
1078 | desc_info->data = buf; | |
1079 | desc_info->data_size = buf_size; | |
1080 | dma_unmap_addr_set(desc_info, mapaddr, dma_handle); | |
1081 | ||
1082 | desc->buf_addr = dma_handle; | |
1083 | desc->buf_size = buf_size; | |
1084 | } | |
1085 | return 0; | |
1086 | ||
1087 | rollback: | |
1088 | for (i--; i >= 0; i--) { | |
1089 | struct rocker_desc_info *desc_info = &info->desc_info[i]; | |
1090 | ||
1091 | pci_unmap_single(pdev, dma_unmap_addr(desc_info, mapaddr), | |
1092 | desc_info->data_size, direction); | |
1093 | kfree(desc_info->data); | |
1094 | } | |
1095 | return err; | |
1096 | } | |
1097 | ||
1098 | static void rocker_dma_ring_bufs_free(struct rocker *rocker, | |
1099 | struct rocker_dma_ring_info *info, | |
1100 | int direction) | |
1101 | { | |
1102 | struct pci_dev *pdev = rocker->pdev; | |
1103 | int i; | |
1104 | ||
1105 | for (i = 0; i < info->size; i++) { | |
1106 | struct rocker_desc_info *desc_info = &info->desc_info[i]; | |
1107 | struct rocker_desc *desc = &info->desc[i]; | |
1108 | ||
1109 | desc->buf_addr = 0; | |
1110 | desc->buf_size = 0; | |
1111 | pci_unmap_single(pdev, dma_unmap_addr(desc_info, mapaddr), | |
1112 | desc_info->data_size, direction); | |
1113 | kfree(desc_info->data); | |
1114 | } | |
1115 | } | |
1116 | ||
1117 | static int rocker_dma_rings_init(struct rocker *rocker) | |
1118 | { | |
1119 | struct pci_dev *pdev = rocker->pdev; | |
1120 | int err; | |
1121 | ||
1122 | err = rocker_dma_ring_create(rocker, ROCKER_DMA_CMD, | |
1123 | ROCKER_DMA_CMD_DEFAULT_SIZE, | |
1124 | &rocker->cmd_ring); | |
1125 | if (err) { | |
1126 | dev_err(&pdev->dev, "failed to create command dma ring\n"); | |
1127 | return err; | |
1128 | } | |
1129 | ||
1130 | spin_lock_init(&rocker->cmd_ring_lock); | |
1131 | ||
1132 | err = rocker_dma_ring_bufs_alloc(rocker, &rocker->cmd_ring, | |
1133 | PCI_DMA_BIDIRECTIONAL, PAGE_SIZE); | |
1134 | if (err) { | |
1135 | dev_err(&pdev->dev, "failed to alloc command dma ring buffers\n"); | |
1136 | goto err_dma_cmd_ring_bufs_alloc; | |
1137 | } | |
1138 | ||
1139 | err = rocker_dma_ring_create(rocker, ROCKER_DMA_EVENT, | |
1140 | ROCKER_DMA_EVENT_DEFAULT_SIZE, | |
1141 | &rocker->event_ring); | |
1142 | if (err) { | |
1143 | dev_err(&pdev->dev, "failed to create event dma ring\n"); | |
1144 | goto err_dma_event_ring_create; | |
1145 | } | |
1146 | ||
1147 | err = rocker_dma_ring_bufs_alloc(rocker, &rocker->event_ring, | |
1148 | PCI_DMA_FROMDEVICE, PAGE_SIZE); | |
1149 | if (err) { | |
1150 | dev_err(&pdev->dev, "failed to alloc event dma ring buffers\n"); | |
1151 | goto err_dma_event_ring_bufs_alloc; | |
1152 | } | |
1153 | rocker_dma_ring_pass_to_producer(rocker, &rocker->event_ring); | |
1154 | return 0; | |
1155 | ||
1156 | err_dma_event_ring_bufs_alloc: | |
1157 | rocker_dma_ring_destroy(rocker, &rocker->event_ring); | |
1158 | err_dma_event_ring_create: | |
1159 | rocker_dma_ring_bufs_free(rocker, &rocker->cmd_ring, | |
1160 | PCI_DMA_BIDIRECTIONAL); | |
1161 | err_dma_cmd_ring_bufs_alloc: | |
1162 | rocker_dma_ring_destroy(rocker, &rocker->cmd_ring); | |
1163 | return err; | |
1164 | } | |
1165 | ||
1166 | static void rocker_dma_rings_fini(struct rocker *rocker) | |
1167 | { | |
1168 | rocker_dma_ring_bufs_free(rocker, &rocker->event_ring, | |
1169 | PCI_DMA_BIDIRECTIONAL); | |
1170 | rocker_dma_ring_destroy(rocker, &rocker->event_ring); | |
1171 | rocker_dma_ring_bufs_free(rocker, &rocker->cmd_ring, | |
1172 | PCI_DMA_BIDIRECTIONAL); | |
1173 | rocker_dma_ring_destroy(rocker, &rocker->cmd_ring); | |
1174 | } | |
1175 | ||
1176 | static int rocker_dma_rx_ring_skb_map(struct rocker *rocker, | |
1177 | struct rocker_port *rocker_port, | |
1178 | struct rocker_desc_info *desc_info, | |
1179 | struct sk_buff *skb, size_t buf_len) | |
1180 | { | |
1181 | struct pci_dev *pdev = rocker->pdev; | |
1182 | dma_addr_t dma_handle; | |
1183 | ||
1184 | dma_handle = pci_map_single(pdev, skb->data, buf_len, | |
1185 | PCI_DMA_FROMDEVICE); | |
1186 | if (pci_dma_mapping_error(pdev, dma_handle)) | |
1187 | return -EIO; | |
1188 | if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_RX_FRAG_ADDR, dma_handle)) | |
1189 | goto tlv_put_failure; | |
1190 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_RX_FRAG_MAX_LEN, buf_len)) | |
1191 | goto tlv_put_failure; | |
1192 | return 0; | |
1193 | ||
1194 | tlv_put_failure: | |
1195 | pci_unmap_single(pdev, dma_handle, buf_len, PCI_DMA_FROMDEVICE); | |
1196 | desc_info->tlv_size = 0; | |
1197 | return -EMSGSIZE; | |
1198 | } | |
1199 | ||
1200 | static size_t rocker_port_rx_buf_len(struct rocker_port *rocker_port) | |
1201 | { | |
1202 | return rocker_port->dev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN; | |
1203 | } | |
1204 | ||
1205 | static int rocker_dma_rx_ring_skb_alloc(struct rocker *rocker, | |
1206 | struct rocker_port *rocker_port, | |
1207 | struct rocker_desc_info *desc_info) | |
1208 | { | |
1209 | struct net_device *dev = rocker_port->dev; | |
1210 | struct sk_buff *skb; | |
1211 | size_t buf_len = rocker_port_rx_buf_len(rocker_port); | |
1212 | int err; | |
1213 | ||
1214 | /* Ensure that hw will see tlv_size zero in case of an error. | |
1215 | * That tells hw to use another descriptor. | |
1216 | */ | |
1217 | rocker_desc_cookie_ptr_set(desc_info, NULL); | |
1218 | desc_info->tlv_size = 0; | |
1219 | ||
1220 | skb = netdev_alloc_skb_ip_align(dev, buf_len); | |
1221 | if (!skb) | |
1222 | return -ENOMEM; | |
1223 | err = rocker_dma_rx_ring_skb_map(rocker, rocker_port, desc_info, | |
1224 | skb, buf_len); | |
1225 | if (err) { | |
1226 | dev_kfree_skb_any(skb); | |
1227 | return err; | |
1228 | } | |
1229 | rocker_desc_cookie_ptr_set(desc_info, skb); | |
1230 | return 0; | |
1231 | } | |
1232 | ||
1233 | static void rocker_dma_rx_ring_skb_unmap(struct rocker *rocker, | |
1234 | struct rocker_tlv **attrs) | |
1235 | { | |
1236 | struct pci_dev *pdev = rocker->pdev; | |
1237 | dma_addr_t dma_handle; | |
1238 | size_t len; | |
1239 | ||
1240 | if (!attrs[ROCKER_TLV_RX_FRAG_ADDR] || | |
1241 | !attrs[ROCKER_TLV_RX_FRAG_MAX_LEN]) | |
1242 | return; | |
1243 | dma_handle = rocker_tlv_get_u64(attrs[ROCKER_TLV_RX_FRAG_ADDR]); | |
1244 | len = rocker_tlv_get_u16(attrs[ROCKER_TLV_RX_FRAG_MAX_LEN]); | |
1245 | pci_unmap_single(pdev, dma_handle, len, PCI_DMA_FROMDEVICE); | |
1246 | } | |
1247 | ||
1248 | static void rocker_dma_rx_ring_skb_free(struct rocker *rocker, | |
1249 | struct rocker_desc_info *desc_info) | |
1250 | { | |
1251 | struct rocker_tlv *attrs[ROCKER_TLV_RX_MAX + 1]; | |
1252 | struct sk_buff *skb = rocker_desc_cookie_ptr_get(desc_info); | |
1253 | ||
1254 | if (!skb) | |
1255 | return; | |
1256 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_RX_MAX, desc_info); | |
1257 | rocker_dma_rx_ring_skb_unmap(rocker, attrs); | |
1258 | dev_kfree_skb_any(skb); | |
1259 | } | |
1260 | ||
1261 | static int rocker_dma_rx_ring_skbs_alloc(struct rocker *rocker, | |
1262 | struct rocker_port *rocker_port) | |
1263 | { | |
1264 | struct rocker_dma_ring_info *rx_ring = &rocker_port->rx_ring; | |
1265 | int i; | |
1266 | int err; | |
1267 | ||
1268 | for (i = 0; i < rx_ring->size; i++) { | |
1269 | err = rocker_dma_rx_ring_skb_alloc(rocker, rocker_port, | |
1270 | &rx_ring->desc_info[i]); | |
1271 | if (err) | |
1272 | goto rollback; | |
1273 | } | |
1274 | return 0; | |
1275 | ||
1276 | rollback: | |
1277 | for (i--; i >= 0; i--) | |
1278 | rocker_dma_rx_ring_skb_free(rocker, &rx_ring->desc_info[i]); | |
1279 | return err; | |
1280 | } | |
1281 | ||
1282 | static void rocker_dma_rx_ring_skbs_free(struct rocker *rocker, | |
1283 | struct rocker_port *rocker_port) | |
1284 | { | |
1285 | struct rocker_dma_ring_info *rx_ring = &rocker_port->rx_ring; | |
1286 | int i; | |
1287 | ||
1288 | for (i = 0; i < rx_ring->size; i++) | |
1289 | rocker_dma_rx_ring_skb_free(rocker, &rx_ring->desc_info[i]); | |
1290 | } | |
1291 | ||
1292 | static int rocker_port_dma_rings_init(struct rocker_port *rocker_port) | |
1293 | { | |
1294 | struct rocker *rocker = rocker_port->rocker; | |
1295 | int err; | |
1296 | ||
1297 | err = rocker_dma_ring_create(rocker, | |
1298 | ROCKER_DMA_TX(rocker_port->port_number), | |
1299 | ROCKER_DMA_TX_DEFAULT_SIZE, | |
1300 | &rocker_port->tx_ring); | |
1301 | if (err) { | |
1302 | netdev_err(rocker_port->dev, "failed to create tx dma ring\n"); | |
1303 | return err; | |
1304 | } | |
1305 | ||
1306 | err = rocker_dma_ring_bufs_alloc(rocker, &rocker_port->tx_ring, | |
1307 | PCI_DMA_TODEVICE, | |
1308 | ROCKER_DMA_TX_DESC_SIZE); | |
1309 | if (err) { | |
1310 | netdev_err(rocker_port->dev, "failed to alloc tx dma ring buffers\n"); | |
1311 | goto err_dma_tx_ring_bufs_alloc; | |
1312 | } | |
1313 | ||
1314 | err = rocker_dma_ring_create(rocker, | |
1315 | ROCKER_DMA_RX(rocker_port->port_number), | |
1316 | ROCKER_DMA_RX_DEFAULT_SIZE, | |
1317 | &rocker_port->rx_ring); | |
1318 | if (err) { | |
1319 | netdev_err(rocker_port->dev, "failed to create rx dma ring\n"); | |
1320 | goto err_dma_rx_ring_create; | |
1321 | } | |
1322 | ||
1323 | err = rocker_dma_ring_bufs_alloc(rocker, &rocker_port->rx_ring, | |
1324 | PCI_DMA_BIDIRECTIONAL, | |
1325 | ROCKER_DMA_RX_DESC_SIZE); | |
1326 | if (err) { | |
1327 | netdev_err(rocker_port->dev, "failed to alloc rx dma ring buffers\n"); | |
1328 | goto err_dma_rx_ring_bufs_alloc; | |
1329 | } | |
1330 | ||
1331 | err = rocker_dma_rx_ring_skbs_alloc(rocker, rocker_port); | |
1332 | if (err) { | |
1333 | netdev_err(rocker_port->dev, "failed to alloc rx dma ring skbs\n"); | |
1334 | goto err_dma_rx_ring_skbs_alloc; | |
1335 | } | |
1336 | rocker_dma_ring_pass_to_producer(rocker, &rocker_port->rx_ring); | |
1337 | ||
1338 | return 0; | |
1339 | ||
1340 | err_dma_rx_ring_skbs_alloc: | |
1341 | rocker_dma_ring_bufs_free(rocker, &rocker_port->rx_ring, | |
1342 | PCI_DMA_BIDIRECTIONAL); | |
1343 | err_dma_rx_ring_bufs_alloc: | |
1344 | rocker_dma_ring_destroy(rocker, &rocker_port->rx_ring); | |
1345 | err_dma_rx_ring_create: | |
1346 | rocker_dma_ring_bufs_free(rocker, &rocker_port->tx_ring, | |
1347 | PCI_DMA_TODEVICE); | |
1348 | err_dma_tx_ring_bufs_alloc: | |
1349 | rocker_dma_ring_destroy(rocker, &rocker_port->tx_ring); | |
1350 | return err; | |
1351 | } | |
1352 | ||
1353 | static void rocker_port_dma_rings_fini(struct rocker_port *rocker_port) | |
1354 | { | |
1355 | struct rocker *rocker = rocker_port->rocker; | |
1356 | ||
1357 | rocker_dma_rx_ring_skbs_free(rocker, rocker_port); | |
1358 | rocker_dma_ring_bufs_free(rocker, &rocker_port->rx_ring, | |
1359 | PCI_DMA_BIDIRECTIONAL); | |
1360 | rocker_dma_ring_destroy(rocker, &rocker_port->rx_ring); | |
1361 | rocker_dma_ring_bufs_free(rocker, &rocker_port->tx_ring, | |
1362 | PCI_DMA_TODEVICE); | |
1363 | rocker_dma_ring_destroy(rocker, &rocker_port->tx_ring); | |
1364 | } | |
1365 | ||
1366 | static void rocker_port_set_enable(struct rocker_port *rocker_port, bool enable) | |
1367 | { | |
1368 | u64 val = rocker_read64(rocker_port->rocker, PORT_PHYS_ENABLE); | |
1369 | ||
1370 | if (enable) | |
71a83a6d | 1371 | val |= 1ULL << rocker_port->pport; |
4b8ac966 | 1372 | else |
71a83a6d | 1373 | val &= ~(1ULL << rocker_port->pport); |
4b8ac966 JP |
1374 | rocker_write64(rocker_port->rocker, PORT_PHYS_ENABLE, val); |
1375 | } | |
1376 | ||
1377 | /******************************** | |
1378 | * Interrupt handler and helpers | |
1379 | ********************************/ | |
1380 | ||
1381 | static irqreturn_t rocker_cmd_irq_handler(int irq, void *dev_id) | |
1382 | { | |
1383 | struct rocker *rocker = dev_id; | |
1384 | struct rocker_desc_info *desc_info; | |
1385 | struct rocker_wait *wait; | |
1386 | u32 credits = 0; | |
1387 | ||
1388 | spin_lock(&rocker->cmd_ring_lock); | |
1389 | while ((desc_info = rocker_desc_tail_get(&rocker->cmd_ring))) { | |
1390 | wait = rocker_desc_cookie_ptr_get(desc_info); | |
c4f20321 | 1391 | rocker_wait_wake_up(wait); |
4b8ac966 JP |
1392 | credits++; |
1393 | } | |
1394 | spin_unlock(&rocker->cmd_ring_lock); | |
1395 | rocker_dma_ring_credits_set(rocker, &rocker->cmd_ring, credits); | |
1396 | ||
1397 | return IRQ_HANDLED; | |
1398 | } | |
1399 | ||
1400 | static void rocker_port_link_up(struct rocker_port *rocker_port) | |
1401 | { | |
1402 | netif_carrier_on(rocker_port->dev); | |
1403 | netdev_info(rocker_port->dev, "Link is up\n"); | |
1404 | } | |
1405 | ||
1406 | static void rocker_port_link_down(struct rocker_port *rocker_port) | |
1407 | { | |
1408 | netif_carrier_off(rocker_port->dev); | |
1409 | netdev_info(rocker_port->dev, "Link is down\n"); | |
1410 | } | |
1411 | ||
1412 | static int rocker_event_link_change(struct rocker *rocker, | |
1413 | const struct rocker_tlv *info) | |
1414 | { | |
1415 | struct rocker_tlv *attrs[ROCKER_TLV_EVENT_LINK_CHANGED_MAX + 1]; | |
1416 | unsigned int port_number; | |
1417 | bool link_up; | |
1418 | struct rocker_port *rocker_port; | |
1419 | ||
1420 | rocker_tlv_parse_nested(attrs, ROCKER_TLV_EVENT_LINK_CHANGED_MAX, info); | |
4a6bb6d3 | 1421 | if (!attrs[ROCKER_TLV_EVENT_LINK_CHANGED_PPORT] || |
4b8ac966 JP |
1422 | !attrs[ROCKER_TLV_EVENT_LINK_CHANGED_LINKUP]) |
1423 | return -EIO; | |
1424 | port_number = | |
4a6bb6d3 | 1425 | rocker_tlv_get_u32(attrs[ROCKER_TLV_EVENT_LINK_CHANGED_PPORT]) - 1; |
4b8ac966 JP |
1426 | link_up = rocker_tlv_get_u8(attrs[ROCKER_TLV_EVENT_LINK_CHANGED_LINKUP]); |
1427 | ||
1428 | if (port_number >= rocker->port_count) | |
1429 | return -EINVAL; | |
1430 | ||
1431 | rocker_port = rocker->ports[port_number]; | |
1432 | if (netif_carrier_ok(rocker_port->dev) != link_up) { | |
1433 | if (link_up) | |
1434 | rocker_port_link_up(rocker_port); | |
1435 | else | |
1436 | rocker_port_link_down(rocker_port); | |
1437 | } | |
1438 | ||
1439 | return 0; | |
1440 | } | |
1441 | ||
9f6bbf7c | 1442 | #define ROCKER_OP_FLAG_REMOVE BIT(0) |
c4f20321 SF |
1443 | #define ROCKER_OP_FLAG_LEARNED BIT(1) |
1444 | #define ROCKER_OP_FLAG_REFRESH BIT(2) | |
6c707945 SF |
1445 | |
1446 | static int rocker_port_fdb(struct rocker_port *rocker_port, | |
c4f20321 | 1447 | enum switchdev_trans trans, |
6c707945 SF |
1448 | const unsigned char *addr, |
1449 | __be16 vlan_id, int flags); | |
1450 | ||
c4f20321 SF |
1451 | struct rocker_mac_vlan_seen_work { |
1452 | struct work_struct work; | |
1453 | struct rocker_port *rocker_port; | |
1454 | int flags; | |
1455 | unsigned char addr[ETH_ALEN]; | |
1456 | __be16 vlan_id; | |
1457 | }; | |
1458 | ||
1459 | static void rocker_event_mac_vlan_seen_work(struct work_struct *work) | |
1460 | { | |
1461 | struct rocker_mac_vlan_seen_work *sw = | |
1462 | container_of(work, struct rocker_mac_vlan_seen_work, work); | |
1463 | ||
1464 | rtnl_lock(); | |
1465 | rocker_port_fdb(sw->rocker_port, SWITCHDEV_TRANS_NONE, | |
1466 | sw->addr, sw->vlan_id, sw->flags); | |
1467 | rtnl_unlock(); | |
1468 | ||
1469 | kfree(work); | |
1470 | } | |
1471 | ||
6c707945 SF |
1472 | static int rocker_event_mac_vlan_seen(struct rocker *rocker, |
1473 | const struct rocker_tlv *info) | |
1474 | { | |
c4f20321 | 1475 | struct rocker_mac_vlan_seen_work *sw; |
6c707945 SF |
1476 | struct rocker_tlv *attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAX + 1]; |
1477 | unsigned int port_number; | |
1478 | struct rocker_port *rocker_port; | |
1479 | unsigned char *addr; | |
c4f20321 | 1480 | int flags = ROCKER_OP_FLAG_LEARNED; |
6c707945 SF |
1481 | __be16 vlan_id; |
1482 | ||
1483 | rocker_tlv_parse_nested(attrs, ROCKER_TLV_EVENT_MAC_VLAN_MAX, info); | |
4a6bb6d3 | 1484 | if (!attrs[ROCKER_TLV_EVENT_MAC_VLAN_PPORT] || |
6c707945 SF |
1485 | !attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAC] || |
1486 | !attrs[ROCKER_TLV_EVENT_MAC_VLAN_VLAN_ID]) | |
1487 | return -EIO; | |
1488 | port_number = | |
4a6bb6d3 | 1489 | rocker_tlv_get_u32(attrs[ROCKER_TLV_EVENT_MAC_VLAN_PPORT]) - 1; |
6c707945 | 1490 | addr = rocker_tlv_data(attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAC]); |
9b03c71f | 1491 | vlan_id = rocker_tlv_get_be16(attrs[ROCKER_TLV_EVENT_MAC_VLAN_VLAN_ID]); |
6c707945 SF |
1492 | |
1493 | if (port_number >= rocker->port_count) | |
1494 | return -EINVAL; | |
1495 | ||
1496 | rocker_port = rocker->ports[port_number]; | |
1497 | ||
1498 | if (rocker_port->stp_state != BR_STATE_LEARNING && | |
1499 | rocker_port->stp_state != BR_STATE_FORWARDING) | |
1500 | return 0; | |
1501 | ||
c4f20321 SF |
1502 | sw = kmalloc(sizeof(*sw), GFP_ATOMIC); |
1503 | if (!sw) | |
1504 | return -ENOMEM; | |
1505 | ||
1506 | INIT_WORK(&sw->work, rocker_event_mac_vlan_seen_work); | |
1507 | ||
1508 | sw->rocker_port = rocker_port; | |
1509 | sw->flags = flags; | |
1510 | ether_addr_copy(sw->addr, addr); | |
1511 | sw->vlan_id = vlan_id; | |
1512 | ||
1513 | schedule_work(&sw->work); | |
1514 | ||
1515 | return 0; | |
6c707945 | 1516 | } |
9f6bbf7c | 1517 | |
4b8ac966 JP |
1518 | static int rocker_event_process(struct rocker *rocker, |
1519 | struct rocker_desc_info *desc_info) | |
1520 | { | |
1521 | struct rocker_tlv *attrs[ROCKER_TLV_EVENT_MAX + 1]; | |
1522 | struct rocker_tlv *info; | |
1523 | u16 type; | |
1524 | ||
1525 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_EVENT_MAX, desc_info); | |
1526 | if (!attrs[ROCKER_TLV_EVENT_TYPE] || | |
1527 | !attrs[ROCKER_TLV_EVENT_INFO]) | |
1528 | return -EIO; | |
1529 | ||
1530 | type = rocker_tlv_get_u16(attrs[ROCKER_TLV_EVENT_TYPE]); | |
1531 | info = attrs[ROCKER_TLV_EVENT_INFO]; | |
1532 | ||
1533 | switch (type) { | |
1534 | case ROCKER_TLV_EVENT_TYPE_LINK_CHANGED: | |
1535 | return rocker_event_link_change(rocker, info); | |
6c707945 SF |
1536 | case ROCKER_TLV_EVENT_TYPE_MAC_VLAN_SEEN: |
1537 | return rocker_event_mac_vlan_seen(rocker, info); | |
4b8ac966 JP |
1538 | } |
1539 | ||
1540 | return -EOPNOTSUPP; | |
1541 | } | |
1542 | ||
1543 | static irqreturn_t rocker_event_irq_handler(int irq, void *dev_id) | |
1544 | { | |
1545 | struct rocker *rocker = dev_id; | |
1546 | struct pci_dev *pdev = rocker->pdev; | |
1547 | struct rocker_desc_info *desc_info; | |
1548 | u32 credits = 0; | |
1549 | int err; | |
1550 | ||
1551 | while ((desc_info = rocker_desc_tail_get(&rocker->event_ring))) { | |
1552 | err = rocker_desc_err(desc_info); | |
1553 | if (err) { | |
1554 | dev_err(&pdev->dev, "event desc received with err %d\n", | |
1555 | err); | |
1556 | } else { | |
1557 | err = rocker_event_process(rocker, desc_info); | |
1558 | if (err) | |
1559 | dev_err(&pdev->dev, "event processing failed with err %d\n", | |
1560 | err); | |
1561 | } | |
1562 | rocker_desc_gen_clear(desc_info); | |
1563 | rocker_desc_head_set(rocker, &rocker->event_ring, desc_info); | |
1564 | credits++; | |
1565 | } | |
1566 | rocker_dma_ring_credits_set(rocker, &rocker->event_ring, credits); | |
1567 | ||
1568 | return IRQ_HANDLED; | |
1569 | } | |
1570 | ||
1571 | static irqreturn_t rocker_tx_irq_handler(int irq, void *dev_id) | |
1572 | { | |
1573 | struct rocker_port *rocker_port = dev_id; | |
1574 | ||
1575 | napi_schedule(&rocker_port->napi_tx); | |
1576 | return IRQ_HANDLED; | |
1577 | } | |
1578 | ||
1579 | static irqreturn_t rocker_rx_irq_handler(int irq, void *dev_id) | |
1580 | { | |
1581 | struct rocker_port *rocker_port = dev_id; | |
1582 | ||
1583 | napi_schedule(&rocker_port->napi_rx); | |
1584 | return IRQ_HANDLED; | |
1585 | } | |
1586 | ||
1587 | /******************** | |
1588 | * Command interface | |
1589 | ********************/ | |
1590 | ||
1591 | typedef int (*rocker_cmd_cb_t)(struct rocker *rocker, | |
1592 | struct rocker_port *rocker_port, | |
1593 | struct rocker_desc_info *desc_info, | |
1594 | void *priv); | |
1595 | ||
1596 | static int rocker_cmd_exec(struct rocker *rocker, | |
1597 | struct rocker_port *rocker_port, | |
c4f20321 | 1598 | enum switchdev_trans trans, |
4b8ac966 | 1599 | rocker_cmd_cb_t prepare, void *prepare_priv, |
c4f20321 | 1600 | rocker_cmd_cb_t process, void *process_priv) |
4b8ac966 JP |
1601 | { |
1602 | struct rocker_desc_info *desc_info; | |
1603 | struct rocker_wait *wait; | |
1604 | unsigned long flags; | |
1605 | int err; | |
1606 | ||
c4f20321 | 1607 | wait = rocker_wait_create(rocker_port, trans); |
4b8ac966 JP |
1608 | if (!wait) |
1609 | return -ENOMEM; | |
4b8ac966 JP |
1610 | |
1611 | spin_lock_irqsave(&rocker->cmd_ring_lock, flags); | |
c4f20321 | 1612 | |
4b8ac966 JP |
1613 | desc_info = rocker_desc_head_get(&rocker->cmd_ring); |
1614 | if (!desc_info) { | |
1615 | spin_unlock_irqrestore(&rocker->cmd_ring_lock, flags); | |
1616 | err = -EAGAIN; | |
1617 | goto out; | |
1618 | } | |
c4f20321 | 1619 | |
4b8ac966 JP |
1620 | err = prepare(rocker, rocker_port, desc_info, prepare_priv); |
1621 | if (err) { | |
1622 | spin_unlock_irqrestore(&rocker->cmd_ring_lock, flags); | |
1623 | goto out; | |
1624 | } | |
c4f20321 | 1625 | |
4b8ac966 | 1626 | rocker_desc_cookie_ptr_set(desc_info, wait); |
4b8ac966 | 1627 | |
c4f20321 SF |
1628 | if (trans != SWITCHDEV_TRANS_PREPARE) |
1629 | rocker_desc_head_set(rocker, &rocker->cmd_ring, desc_info); | |
4b8ac966 | 1630 | |
c4f20321 SF |
1631 | spin_unlock_irqrestore(&rocker->cmd_ring_lock, flags); |
1632 | ||
1633 | if (trans != SWITCHDEV_TRANS_PREPARE) | |
1634 | if (!rocker_wait_event_timeout(wait, HZ / 10)) | |
1635 | return -EIO; | |
4b8ac966 JP |
1636 | |
1637 | err = rocker_desc_err(desc_info); | |
1638 | if (err) | |
1639 | return err; | |
1640 | ||
1641 | if (process) | |
1642 | err = process(rocker, rocker_port, desc_info, process_priv); | |
1643 | ||
1644 | rocker_desc_gen_clear(desc_info); | |
1645 | out: | |
c4f20321 | 1646 | rocker_wait_destroy(rocker_port, trans, wait); |
4b8ac966 JP |
1647 | return err; |
1648 | } | |
1649 | ||
1650 | static int | |
1651 | rocker_cmd_get_port_settings_prep(struct rocker *rocker, | |
1652 | struct rocker_port *rocker_port, | |
1653 | struct rocker_desc_info *desc_info, | |
1654 | void *priv) | |
1655 | { | |
1656 | struct rocker_tlv *cmd_info; | |
1657 | ||
1658 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, | |
1659 | ROCKER_TLV_CMD_TYPE_GET_PORT_SETTINGS)) | |
1660 | return -EMSGSIZE; | |
1661 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
1662 | if (!cmd_info) | |
1663 | return -EMSGSIZE; | |
4a6bb6d3 SF |
1664 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT, |
1665 | rocker_port->pport)) | |
4b8ac966 JP |
1666 | return -EMSGSIZE; |
1667 | rocker_tlv_nest_end(desc_info, cmd_info); | |
1668 | return 0; | |
1669 | } | |
1670 | ||
1671 | static int | |
1672 | rocker_cmd_get_port_settings_ethtool_proc(struct rocker *rocker, | |
1673 | struct rocker_port *rocker_port, | |
1674 | struct rocker_desc_info *desc_info, | |
1675 | void *priv) | |
1676 | { | |
1677 | struct ethtool_cmd *ecmd = priv; | |
1678 | struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1]; | |
1679 | struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1]; | |
1680 | u32 speed; | |
1681 | u8 duplex; | |
1682 | u8 autoneg; | |
1683 | ||
1684 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info); | |
1685 | if (!attrs[ROCKER_TLV_CMD_INFO]) | |
1686 | return -EIO; | |
1687 | ||
1688 | rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX, | |
1689 | attrs[ROCKER_TLV_CMD_INFO]); | |
1690 | if (!info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_SPEED] || | |
1691 | !info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX] || | |
1692 | !info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG]) | |
1693 | return -EIO; | |
1694 | ||
1695 | speed = rocker_tlv_get_u32(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_SPEED]); | |
1696 | duplex = rocker_tlv_get_u8(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX]); | |
1697 | autoneg = rocker_tlv_get_u8(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG]); | |
1698 | ||
1699 | ecmd->transceiver = XCVR_INTERNAL; | |
1700 | ecmd->supported = SUPPORTED_TP; | |
1701 | ecmd->phy_address = 0xff; | |
1702 | ecmd->port = PORT_TP; | |
1703 | ethtool_cmd_speed_set(ecmd, speed); | |
1704 | ecmd->duplex = duplex ? DUPLEX_FULL : DUPLEX_HALF; | |
1705 | ecmd->autoneg = autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE; | |
1706 | ||
1707 | return 0; | |
1708 | } | |
1709 | ||
1710 | static int | |
1711 | rocker_cmd_get_port_settings_macaddr_proc(struct rocker *rocker, | |
1712 | struct rocker_port *rocker_port, | |
1713 | struct rocker_desc_info *desc_info, | |
1714 | void *priv) | |
1715 | { | |
1716 | unsigned char *macaddr = priv; | |
1717 | struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1]; | |
1718 | struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1]; | |
1719 | struct rocker_tlv *attr; | |
1720 | ||
1721 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info); | |
1722 | if (!attrs[ROCKER_TLV_CMD_INFO]) | |
1723 | return -EIO; | |
1724 | ||
1725 | rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX, | |
1726 | attrs[ROCKER_TLV_CMD_INFO]); | |
1727 | attr = info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MACADDR]; | |
1728 | if (!attr) | |
1729 | return -EIO; | |
1730 | ||
1731 | if (rocker_tlv_len(attr) != ETH_ALEN) | |
1732 | return -EINVAL; | |
1733 | ||
1734 | ether_addr_copy(macaddr, rocker_tlv_data(attr)); | |
1735 | return 0; | |
1736 | } | |
1737 | ||
db19170b DA |
1738 | struct port_name { |
1739 | char *buf; | |
1740 | size_t len; | |
1741 | }; | |
1742 | ||
1743 | static int | |
1744 | rocker_cmd_get_port_settings_phys_name_proc(struct rocker *rocker, | |
1745 | struct rocker_port *rocker_port, | |
1746 | struct rocker_desc_info *desc_info, | |
1747 | void *priv) | |
1748 | { | |
1749 | struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1]; | |
1750 | struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1]; | |
1751 | struct port_name *name = priv; | |
1752 | struct rocker_tlv *attr; | |
1753 | size_t i, j, len; | |
1754 | char *str; | |
1755 | ||
1756 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info); | |
1757 | if (!attrs[ROCKER_TLV_CMD_INFO]) | |
1758 | return -EIO; | |
1759 | ||
1760 | rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX, | |
1761 | attrs[ROCKER_TLV_CMD_INFO]); | |
1762 | attr = info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_PHYS_NAME]; | |
1763 | if (!attr) | |
1764 | return -EIO; | |
1765 | ||
1766 | len = min_t(size_t, rocker_tlv_len(attr), name->len); | |
1767 | str = rocker_tlv_data(attr); | |
1768 | ||
1769 | /* make sure name only contains alphanumeric characters */ | |
1770 | for (i = j = 0; i < len; ++i) { | |
1771 | if (isalnum(str[i])) { | |
1772 | name->buf[j] = str[i]; | |
1773 | j++; | |
1774 | } | |
1775 | } | |
1776 | ||
1777 | if (j == 0) | |
1778 | return -EIO; | |
1779 | ||
1780 | name->buf[j] = '\0'; | |
1781 | ||
1782 | return 0; | |
1783 | } | |
1784 | ||
4b8ac966 JP |
1785 | static int |
1786 | rocker_cmd_set_port_settings_ethtool_prep(struct rocker *rocker, | |
1787 | struct rocker_port *rocker_port, | |
1788 | struct rocker_desc_info *desc_info, | |
1789 | void *priv) | |
1790 | { | |
1791 | struct ethtool_cmd *ecmd = priv; | |
1792 | struct rocker_tlv *cmd_info; | |
1793 | ||
1794 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, | |
1795 | ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS)) | |
1796 | return -EMSGSIZE; | |
1797 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
1798 | if (!cmd_info) | |
1799 | return -EMSGSIZE; | |
4a6bb6d3 SF |
1800 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT, |
1801 | rocker_port->pport)) | |
4b8ac966 JP |
1802 | return -EMSGSIZE; |
1803 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_SPEED, | |
1804 | ethtool_cmd_speed(ecmd))) | |
1805 | return -EMSGSIZE; | |
1806 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX, | |
1807 | ecmd->duplex)) | |
1808 | return -EMSGSIZE; | |
1809 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG, | |
1810 | ecmd->autoneg)) | |
1811 | return -EMSGSIZE; | |
1812 | rocker_tlv_nest_end(desc_info, cmd_info); | |
1813 | return 0; | |
1814 | } | |
1815 | ||
1816 | static int | |
1817 | rocker_cmd_set_port_settings_macaddr_prep(struct rocker *rocker, | |
1818 | struct rocker_port *rocker_port, | |
1819 | struct rocker_desc_info *desc_info, | |
1820 | void *priv) | |
1821 | { | |
1822 | unsigned char *macaddr = priv; | |
1823 | struct rocker_tlv *cmd_info; | |
1824 | ||
1825 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, | |
1826 | ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS)) | |
1827 | return -EMSGSIZE; | |
1828 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
1829 | if (!cmd_info) | |
1830 | return -EMSGSIZE; | |
4a6bb6d3 SF |
1831 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT, |
1832 | rocker_port->pport)) | |
4b8ac966 JP |
1833 | return -EMSGSIZE; |
1834 | if (rocker_tlv_put(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_MACADDR, | |
1835 | ETH_ALEN, macaddr)) | |
1836 | return -EMSGSIZE; | |
1837 | rocker_tlv_nest_end(desc_info, cmd_info); | |
1838 | return 0; | |
1839 | } | |
1840 | ||
5111f80c SF |
1841 | static int |
1842 | rocker_cmd_set_port_learning_prep(struct rocker *rocker, | |
1843 | struct rocker_port *rocker_port, | |
1844 | struct rocker_desc_info *desc_info, | |
1845 | void *priv) | |
1846 | { | |
1847 | struct rocker_tlv *cmd_info; | |
1848 | ||
1849 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, | |
1850 | ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS)) | |
1851 | return -EMSGSIZE; | |
1852 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
1853 | if (!cmd_info) | |
1854 | return -EMSGSIZE; | |
4a6bb6d3 SF |
1855 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT, |
1856 | rocker_port->pport)) | |
5111f80c SF |
1857 | return -EMSGSIZE; |
1858 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_LEARNING, | |
1859 | !!(rocker_port->brport_flags & BR_LEARNING))) | |
1860 | return -EMSGSIZE; | |
1861 | rocker_tlv_nest_end(desc_info, cmd_info); | |
1862 | return 0; | |
1863 | } | |
1864 | ||
4b8ac966 JP |
1865 | static int rocker_cmd_get_port_settings_ethtool(struct rocker_port *rocker_port, |
1866 | struct ethtool_cmd *ecmd) | |
1867 | { | |
1868 | return rocker_cmd_exec(rocker_port->rocker, rocker_port, | |
c4f20321 | 1869 | SWITCHDEV_TRANS_NONE, |
4b8ac966 JP |
1870 | rocker_cmd_get_port_settings_prep, NULL, |
1871 | rocker_cmd_get_port_settings_ethtool_proc, | |
c4f20321 | 1872 | ecmd); |
4b8ac966 JP |
1873 | } |
1874 | ||
1875 | static int rocker_cmd_get_port_settings_macaddr(struct rocker_port *rocker_port, | |
1876 | unsigned char *macaddr) | |
1877 | { | |
1878 | return rocker_cmd_exec(rocker_port->rocker, rocker_port, | |
c4f20321 | 1879 | SWITCHDEV_TRANS_NONE, |
4b8ac966 JP |
1880 | rocker_cmd_get_port_settings_prep, NULL, |
1881 | rocker_cmd_get_port_settings_macaddr_proc, | |
c4f20321 | 1882 | macaddr); |
4b8ac966 JP |
1883 | } |
1884 | ||
1885 | static int rocker_cmd_set_port_settings_ethtool(struct rocker_port *rocker_port, | |
1886 | struct ethtool_cmd *ecmd) | |
1887 | { | |
1888 | return rocker_cmd_exec(rocker_port->rocker, rocker_port, | |
c4f20321 | 1889 | SWITCHDEV_TRANS_NONE, |
4b8ac966 | 1890 | rocker_cmd_set_port_settings_ethtool_prep, |
c4f20321 | 1891 | ecmd, NULL, NULL); |
4b8ac966 JP |
1892 | } |
1893 | ||
1894 | static int rocker_cmd_set_port_settings_macaddr(struct rocker_port *rocker_port, | |
1895 | unsigned char *macaddr) | |
1896 | { | |
1897 | return rocker_cmd_exec(rocker_port->rocker, rocker_port, | |
c4f20321 | 1898 | SWITCHDEV_TRANS_NONE, |
4b8ac966 | 1899 | rocker_cmd_set_port_settings_macaddr_prep, |
c4f20321 | 1900 | macaddr, NULL, NULL); |
4b8ac966 JP |
1901 | } |
1902 | ||
c4f20321 SF |
1903 | static int rocker_port_set_learning(struct rocker_port *rocker_port, |
1904 | enum switchdev_trans trans) | |
5111f80c | 1905 | { |
c4f20321 | 1906 | return rocker_cmd_exec(rocker_port->rocker, rocker_port, trans, |
5111f80c | 1907 | rocker_cmd_set_port_learning_prep, |
c4f20321 | 1908 | NULL, NULL, NULL); |
5111f80c SF |
1909 | } |
1910 | ||
9f6bbf7c SF |
1911 | static int rocker_cmd_flow_tbl_add_ig_port(struct rocker_desc_info *desc_info, |
1912 | struct rocker_flow_tbl_entry *entry) | |
1913 | { | |
4a6bb6d3 SF |
1914 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT, |
1915 | entry->key.ig_port.in_pport)) | |
9f6bbf7c | 1916 | return -EMSGSIZE; |
4a6bb6d3 SF |
1917 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK, |
1918 | entry->key.ig_port.in_pport_mask)) | |
9f6bbf7c SF |
1919 | return -EMSGSIZE; |
1920 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID, | |
1921 | entry->key.ig_port.goto_tbl)) | |
1922 | return -EMSGSIZE; | |
1923 | ||
1924 | return 0; | |
1925 | } | |
1926 | ||
1927 | static int rocker_cmd_flow_tbl_add_vlan(struct rocker_desc_info *desc_info, | |
1928 | struct rocker_flow_tbl_entry *entry) | |
1929 | { | |
4a6bb6d3 SF |
1930 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT, |
1931 | entry->key.vlan.in_pport)) | |
9f6bbf7c | 1932 | return -EMSGSIZE; |
9b03c71f JP |
1933 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, |
1934 | entry->key.vlan.vlan_id)) | |
9f6bbf7c | 1935 | return -EMSGSIZE; |
9b03c71f JP |
1936 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK, |
1937 | entry->key.vlan.vlan_id_mask)) | |
9f6bbf7c SF |
1938 | return -EMSGSIZE; |
1939 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID, | |
1940 | entry->key.vlan.goto_tbl)) | |
1941 | return -EMSGSIZE; | |
1942 | if (entry->key.vlan.untagged && | |
9b03c71f JP |
1943 | rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_NEW_VLAN_ID, |
1944 | entry->key.vlan.new_vlan_id)) | |
9f6bbf7c SF |
1945 | return -EMSGSIZE; |
1946 | ||
1947 | return 0; | |
1948 | } | |
1949 | ||
1950 | static int rocker_cmd_flow_tbl_add_term_mac(struct rocker_desc_info *desc_info, | |
1951 | struct rocker_flow_tbl_entry *entry) | |
1952 | { | |
4a6bb6d3 SF |
1953 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT, |
1954 | entry->key.term_mac.in_pport)) | |
9f6bbf7c | 1955 | return -EMSGSIZE; |
4a6bb6d3 SF |
1956 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK, |
1957 | entry->key.term_mac.in_pport_mask)) | |
9f6bbf7c | 1958 | return -EMSGSIZE; |
9b03c71f JP |
1959 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE, |
1960 | entry->key.term_mac.eth_type)) | |
9f6bbf7c SF |
1961 | return -EMSGSIZE; |
1962 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC, | |
1963 | ETH_ALEN, entry->key.term_mac.eth_dst)) | |
1964 | return -EMSGSIZE; | |
1965 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK, | |
1966 | ETH_ALEN, entry->key.term_mac.eth_dst_mask)) | |
1967 | return -EMSGSIZE; | |
9b03c71f JP |
1968 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, |
1969 | entry->key.term_mac.vlan_id)) | |
9f6bbf7c | 1970 | return -EMSGSIZE; |
9b03c71f JP |
1971 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK, |
1972 | entry->key.term_mac.vlan_id_mask)) | |
9f6bbf7c SF |
1973 | return -EMSGSIZE; |
1974 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID, | |
1975 | entry->key.term_mac.goto_tbl)) | |
1976 | return -EMSGSIZE; | |
1977 | if (entry->key.term_mac.copy_to_cpu && | |
1978 | rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION, | |
1979 | entry->key.term_mac.copy_to_cpu)) | |
1980 | return -EMSGSIZE; | |
1981 | ||
1982 | return 0; | |
1983 | } | |
1984 | ||
1985 | static int | |
1986 | rocker_cmd_flow_tbl_add_ucast_routing(struct rocker_desc_info *desc_info, | |
1987 | struct rocker_flow_tbl_entry *entry) | |
1988 | { | |
9b03c71f JP |
1989 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE, |
1990 | entry->key.ucast_routing.eth_type)) | |
9f6bbf7c | 1991 | return -EMSGSIZE; |
9b03c71f JP |
1992 | if (rocker_tlv_put_be32(desc_info, ROCKER_TLV_OF_DPA_DST_IP, |
1993 | entry->key.ucast_routing.dst4)) | |
9f6bbf7c | 1994 | return -EMSGSIZE; |
9b03c71f JP |
1995 | if (rocker_tlv_put_be32(desc_info, ROCKER_TLV_OF_DPA_DST_IP_MASK, |
1996 | entry->key.ucast_routing.dst4_mask)) | |
9f6bbf7c SF |
1997 | return -EMSGSIZE; |
1998 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID, | |
1999 | entry->key.ucast_routing.goto_tbl)) | |
2000 | return -EMSGSIZE; | |
2001 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID, | |
2002 | entry->key.ucast_routing.group_id)) | |
2003 | return -EMSGSIZE; | |
2004 | ||
2005 | return 0; | |
2006 | } | |
2007 | ||
2008 | static int rocker_cmd_flow_tbl_add_bridge(struct rocker_desc_info *desc_info, | |
2009 | struct rocker_flow_tbl_entry *entry) | |
2010 | { | |
2011 | if (entry->key.bridge.has_eth_dst && | |
2012 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC, | |
2013 | ETH_ALEN, entry->key.bridge.eth_dst)) | |
2014 | return -EMSGSIZE; | |
2015 | if (entry->key.bridge.has_eth_dst_mask && | |
2016 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK, | |
2017 | ETH_ALEN, entry->key.bridge.eth_dst_mask)) | |
2018 | return -EMSGSIZE; | |
2019 | if (entry->key.bridge.vlan_id && | |
9b03c71f JP |
2020 | rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, |
2021 | entry->key.bridge.vlan_id)) | |
9f6bbf7c SF |
2022 | return -EMSGSIZE; |
2023 | if (entry->key.bridge.tunnel_id && | |
2024 | rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_TUNNEL_ID, | |
2025 | entry->key.bridge.tunnel_id)) | |
2026 | return -EMSGSIZE; | |
2027 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID, | |
2028 | entry->key.bridge.goto_tbl)) | |
2029 | return -EMSGSIZE; | |
2030 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID, | |
2031 | entry->key.bridge.group_id)) | |
2032 | return -EMSGSIZE; | |
2033 | if (entry->key.bridge.copy_to_cpu && | |
2034 | rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION, | |
2035 | entry->key.bridge.copy_to_cpu)) | |
2036 | return -EMSGSIZE; | |
2037 | ||
2038 | return 0; | |
2039 | } | |
2040 | ||
2041 | static int rocker_cmd_flow_tbl_add_acl(struct rocker_desc_info *desc_info, | |
2042 | struct rocker_flow_tbl_entry *entry) | |
2043 | { | |
4a6bb6d3 SF |
2044 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT, |
2045 | entry->key.acl.in_pport)) | |
9f6bbf7c | 2046 | return -EMSGSIZE; |
4a6bb6d3 SF |
2047 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK, |
2048 | entry->key.acl.in_pport_mask)) | |
9f6bbf7c SF |
2049 | return -EMSGSIZE; |
2050 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC, | |
2051 | ETH_ALEN, entry->key.acl.eth_src)) | |
2052 | return -EMSGSIZE; | |
2053 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC_MASK, | |
2054 | ETH_ALEN, entry->key.acl.eth_src_mask)) | |
2055 | return -EMSGSIZE; | |
2056 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC, | |
2057 | ETH_ALEN, entry->key.acl.eth_dst)) | |
2058 | return -EMSGSIZE; | |
2059 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK, | |
2060 | ETH_ALEN, entry->key.acl.eth_dst_mask)) | |
2061 | return -EMSGSIZE; | |
9b03c71f JP |
2062 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE, |
2063 | entry->key.acl.eth_type)) | |
9f6bbf7c | 2064 | return -EMSGSIZE; |
9b03c71f JP |
2065 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, |
2066 | entry->key.acl.vlan_id)) | |
9f6bbf7c | 2067 | return -EMSGSIZE; |
9b03c71f JP |
2068 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK, |
2069 | entry->key.acl.vlan_id_mask)) | |
9f6bbf7c SF |
2070 | return -EMSGSIZE; |
2071 | ||
2072 | switch (ntohs(entry->key.acl.eth_type)) { | |
2073 | case ETH_P_IP: | |
2074 | case ETH_P_IPV6: | |
2075 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_PROTO, | |
2076 | entry->key.acl.ip_proto)) | |
2077 | return -EMSGSIZE; | |
2078 | if (rocker_tlv_put_u8(desc_info, | |
2079 | ROCKER_TLV_OF_DPA_IP_PROTO_MASK, | |
2080 | entry->key.acl.ip_proto_mask)) | |
2081 | return -EMSGSIZE; | |
2082 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_DSCP, | |
2083 | entry->key.acl.ip_tos & 0x3f)) | |
2084 | return -EMSGSIZE; | |
2085 | if (rocker_tlv_put_u8(desc_info, | |
2086 | ROCKER_TLV_OF_DPA_IP_DSCP_MASK, | |
2087 | entry->key.acl.ip_tos_mask & 0x3f)) | |
2088 | return -EMSGSIZE; | |
2089 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_ECN, | |
2090 | (entry->key.acl.ip_tos & 0xc0) >> 6)) | |
2091 | return -EMSGSIZE; | |
2092 | if (rocker_tlv_put_u8(desc_info, | |
2093 | ROCKER_TLV_OF_DPA_IP_ECN_MASK, | |
2094 | (entry->key.acl.ip_tos_mask & 0xc0) >> 6)) | |
2095 | return -EMSGSIZE; | |
2096 | break; | |
2097 | } | |
2098 | ||
2099 | if (entry->key.acl.group_id != ROCKER_GROUP_NONE && | |
2100 | rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID, | |
2101 | entry->key.acl.group_id)) | |
2102 | return -EMSGSIZE; | |
2103 | ||
2104 | return 0; | |
2105 | } | |
2106 | ||
2107 | static int rocker_cmd_flow_tbl_add(struct rocker *rocker, | |
2108 | struct rocker_port *rocker_port, | |
2109 | struct rocker_desc_info *desc_info, | |
2110 | void *priv) | |
2111 | { | |
2112 | struct rocker_flow_tbl_entry *entry = priv; | |
2113 | struct rocker_tlv *cmd_info; | |
2114 | int err = 0; | |
2115 | ||
c1beeef7 | 2116 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd)) |
9f6bbf7c SF |
2117 | return -EMSGSIZE; |
2118 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
2119 | if (!cmd_info) | |
2120 | return -EMSGSIZE; | |
2121 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_TABLE_ID, | |
2122 | entry->key.tbl_id)) | |
2123 | return -EMSGSIZE; | |
2124 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_PRIORITY, | |
2125 | entry->key.priority)) | |
2126 | return -EMSGSIZE; | |
2127 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_HARDTIME, 0)) | |
2128 | return -EMSGSIZE; | |
2129 | if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_OF_DPA_COOKIE, | |
2130 | entry->cookie)) | |
2131 | return -EMSGSIZE; | |
2132 | ||
2133 | switch (entry->key.tbl_id) { | |
2134 | case ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT: | |
2135 | err = rocker_cmd_flow_tbl_add_ig_port(desc_info, entry); | |
2136 | break; | |
2137 | case ROCKER_OF_DPA_TABLE_ID_VLAN: | |
2138 | err = rocker_cmd_flow_tbl_add_vlan(desc_info, entry); | |
2139 | break; | |
2140 | case ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC: | |
2141 | err = rocker_cmd_flow_tbl_add_term_mac(desc_info, entry); | |
2142 | break; | |
2143 | case ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING: | |
2144 | err = rocker_cmd_flow_tbl_add_ucast_routing(desc_info, entry); | |
2145 | break; | |
2146 | case ROCKER_OF_DPA_TABLE_ID_BRIDGING: | |
2147 | err = rocker_cmd_flow_tbl_add_bridge(desc_info, entry); | |
2148 | break; | |
2149 | case ROCKER_OF_DPA_TABLE_ID_ACL_POLICY: | |
2150 | err = rocker_cmd_flow_tbl_add_acl(desc_info, entry); | |
2151 | break; | |
2152 | default: | |
2153 | err = -ENOTSUPP; | |
2154 | break; | |
2155 | } | |
2156 | ||
2157 | if (err) | |
2158 | return err; | |
2159 | ||
2160 | rocker_tlv_nest_end(desc_info, cmd_info); | |
2161 | ||
2162 | return 0; | |
2163 | } | |
2164 | ||
2165 | static int rocker_cmd_flow_tbl_del(struct rocker *rocker, | |
2166 | struct rocker_port *rocker_port, | |
2167 | struct rocker_desc_info *desc_info, | |
2168 | void *priv) | |
2169 | { | |
2170 | const struct rocker_flow_tbl_entry *entry = priv; | |
2171 | struct rocker_tlv *cmd_info; | |
2172 | ||
c1beeef7 | 2173 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd)) |
9f6bbf7c SF |
2174 | return -EMSGSIZE; |
2175 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
2176 | if (!cmd_info) | |
2177 | return -EMSGSIZE; | |
2178 | if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_OF_DPA_COOKIE, | |
2179 | entry->cookie)) | |
2180 | return -EMSGSIZE; | |
2181 | rocker_tlv_nest_end(desc_info, cmd_info); | |
2182 | ||
2183 | return 0; | |
2184 | } | |
2185 | ||
2186 | static int | |
2187 | rocker_cmd_group_tbl_add_l2_interface(struct rocker_desc_info *desc_info, | |
2188 | struct rocker_group_tbl_entry *entry) | |
2189 | { | |
4a6bb6d3 | 2190 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_OUT_PPORT, |
9f6bbf7c SF |
2191 | ROCKER_GROUP_PORT_GET(entry->group_id))) |
2192 | return -EMSGSIZE; | |
2193 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_POP_VLAN, | |
2194 | entry->l2_interface.pop_vlan)) | |
2195 | return -EMSGSIZE; | |
2196 | ||
2197 | return 0; | |
2198 | } | |
2199 | ||
2200 | static int | |
2201 | rocker_cmd_group_tbl_add_l2_rewrite(struct rocker_desc_info *desc_info, | |
2202 | struct rocker_group_tbl_entry *entry) | |
2203 | { | |
2204 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER, | |
2205 | entry->l2_rewrite.group_id)) | |
2206 | return -EMSGSIZE; | |
2207 | if (!is_zero_ether_addr(entry->l2_rewrite.eth_src) && | |
2208 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC, | |
2209 | ETH_ALEN, entry->l2_rewrite.eth_src)) | |
2210 | return -EMSGSIZE; | |
2211 | if (!is_zero_ether_addr(entry->l2_rewrite.eth_dst) && | |
2212 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC, | |
2213 | ETH_ALEN, entry->l2_rewrite.eth_dst)) | |
2214 | return -EMSGSIZE; | |
2215 | if (entry->l2_rewrite.vlan_id && | |
9b03c71f JP |
2216 | rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, |
2217 | entry->l2_rewrite.vlan_id)) | |
9f6bbf7c SF |
2218 | return -EMSGSIZE; |
2219 | ||
2220 | return 0; | |
2221 | } | |
2222 | ||
2223 | static int | |
2224 | rocker_cmd_group_tbl_add_group_ids(struct rocker_desc_info *desc_info, | |
2225 | struct rocker_group_tbl_entry *entry) | |
2226 | { | |
2227 | int i; | |
2228 | struct rocker_tlv *group_ids; | |
2229 | ||
2230 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GROUP_COUNT, | |
2231 | entry->group_count)) | |
2232 | return -EMSGSIZE; | |
2233 | ||
2234 | group_ids = rocker_tlv_nest_start(desc_info, | |
2235 | ROCKER_TLV_OF_DPA_GROUP_IDS); | |
2236 | if (!group_ids) | |
2237 | return -EMSGSIZE; | |
2238 | ||
2239 | for (i = 0; i < entry->group_count; i++) | |
2240 | /* Note TLV array is 1-based */ | |
2241 | if (rocker_tlv_put_u32(desc_info, i + 1, entry->group_ids[i])) | |
2242 | return -EMSGSIZE; | |
2243 | ||
2244 | rocker_tlv_nest_end(desc_info, group_ids); | |
2245 | ||
2246 | return 0; | |
2247 | } | |
2248 | ||
2249 | static int | |
2250 | rocker_cmd_group_tbl_add_l3_unicast(struct rocker_desc_info *desc_info, | |
2251 | struct rocker_group_tbl_entry *entry) | |
2252 | { | |
2253 | if (!is_zero_ether_addr(entry->l3_unicast.eth_src) && | |
2254 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC, | |
2255 | ETH_ALEN, entry->l3_unicast.eth_src)) | |
2256 | return -EMSGSIZE; | |
2257 | if (!is_zero_ether_addr(entry->l3_unicast.eth_dst) && | |
2258 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC, | |
2259 | ETH_ALEN, entry->l3_unicast.eth_dst)) | |
2260 | return -EMSGSIZE; | |
2261 | if (entry->l3_unicast.vlan_id && | |
9b03c71f JP |
2262 | rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, |
2263 | entry->l3_unicast.vlan_id)) | |
9f6bbf7c SF |
2264 | return -EMSGSIZE; |
2265 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_TTL_CHECK, | |
2266 | entry->l3_unicast.ttl_check)) | |
2267 | return -EMSGSIZE; | |
2268 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER, | |
2269 | entry->l3_unicast.group_id)) | |
2270 | return -EMSGSIZE; | |
2271 | ||
2272 | return 0; | |
2273 | } | |
2274 | ||
2275 | static int rocker_cmd_group_tbl_add(struct rocker *rocker, | |
2276 | struct rocker_port *rocker_port, | |
2277 | struct rocker_desc_info *desc_info, | |
2278 | void *priv) | |
2279 | { | |
2280 | struct rocker_group_tbl_entry *entry = priv; | |
2281 | struct rocker_tlv *cmd_info; | |
2282 | int err = 0; | |
2283 | ||
2284 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd)) | |
2285 | return -EMSGSIZE; | |
2286 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
2287 | if (!cmd_info) | |
2288 | return -EMSGSIZE; | |
2289 | ||
2290 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID, | |
2291 | entry->group_id)) | |
2292 | return -EMSGSIZE; | |
2293 | ||
2294 | switch (ROCKER_GROUP_TYPE_GET(entry->group_id)) { | |
2295 | case ROCKER_OF_DPA_GROUP_TYPE_L2_INTERFACE: | |
2296 | err = rocker_cmd_group_tbl_add_l2_interface(desc_info, entry); | |
2297 | break; | |
2298 | case ROCKER_OF_DPA_GROUP_TYPE_L2_REWRITE: | |
2299 | err = rocker_cmd_group_tbl_add_l2_rewrite(desc_info, entry); | |
2300 | break; | |
2301 | case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD: | |
2302 | case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST: | |
2303 | err = rocker_cmd_group_tbl_add_group_ids(desc_info, entry); | |
2304 | break; | |
2305 | case ROCKER_OF_DPA_GROUP_TYPE_L3_UCAST: | |
2306 | err = rocker_cmd_group_tbl_add_l3_unicast(desc_info, entry); | |
2307 | break; | |
2308 | default: | |
2309 | err = -ENOTSUPP; | |
2310 | break; | |
2311 | } | |
2312 | ||
2313 | if (err) | |
2314 | return err; | |
2315 | ||
2316 | rocker_tlv_nest_end(desc_info, cmd_info); | |
2317 | ||
2318 | return 0; | |
2319 | } | |
2320 | ||
2321 | static int rocker_cmd_group_tbl_del(struct rocker *rocker, | |
2322 | struct rocker_port *rocker_port, | |
2323 | struct rocker_desc_info *desc_info, | |
2324 | void *priv) | |
2325 | { | |
2326 | const struct rocker_group_tbl_entry *entry = priv; | |
2327 | struct rocker_tlv *cmd_info; | |
2328 | ||
2329 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd)) | |
2330 | return -EMSGSIZE; | |
2331 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
2332 | if (!cmd_info) | |
2333 | return -EMSGSIZE; | |
2334 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID, | |
2335 | entry->group_id)) | |
2336 | return -EMSGSIZE; | |
2337 | rocker_tlv_nest_end(desc_info, cmd_info); | |
2338 | ||
2339 | return 0; | |
2340 | } | |
2341 | ||
c1beeef7 SF |
2342 | /*************************************************** |
2343 | * Flow, group, FDB, internal VLAN and neigh tables | |
2344 | ***************************************************/ | |
9f6bbf7c SF |
2345 | |
2346 | static int rocker_init_tbls(struct rocker *rocker) | |
2347 | { | |
2348 | hash_init(rocker->flow_tbl); | |
2349 | spin_lock_init(&rocker->flow_tbl_lock); | |
2350 | ||
2351 | hash_init(rocker->group_tbl); | |
2352 | spin_lock_init(&rocker->group_tbl_lock); | |
2353 | ||
2354 | hash_init(rocker->fdb_tbl); | |
2355 | spin_lock_init(&rocker->fdb_tbl_lock); | |
2356 | ||
2357 | hash_init(rocker->internal_vlan_tbl); | |
2358 | spin_lock_init(&rocker->internal_vlan_tbl_lock); | |
2359 | ||
c1beeef7 SF |
2360 | hash_init(rocker->neigh_tbl); |
2361 | spin_lock_init(&rocker->neigh_tbl_lock); | |
2362 | ||
9f6bbf7c SF |
2363 | return 0; |
2364 | } | |
2365 | ||
2366 | static void rocker_free_tbls(struct rocker *rocker) | |
2367 | { | |
2368 | unsigned long flags; | |
2369 | struct rocker_flow_tbl_entry *flow_entry; | |
2370 | struct rocker_group_tbl_entry *group_entry; | |
2371 | struct rocker_fdb_tbl_entry *fdb_entry; | |
2372 | struct rocker_internal_vlan_tbl_entry *internal_vlan_entry; | |
c1beeef7 | 2373 | struct rocker_neigh_tbl_entry *neigh_entry; |
9f6bbf7c SF |
2374 | struct hlist_node *tmp; |
2375 | int bkt; | |
2376 | ||
2377 | spin_lock_irqsave(&rocker->flow_tbl_lock, flags); | |
2378 | hash_for_each_safe(rocker->flow_tbl, bkt, tmp, flow_entry, entry) | |
2379 | hash_del(&flow_entry->entry); | |
2380 | spin_unlock_irqrestore(&rocker->flow_tbl_lock, flags); | |
2381 | ||
2382 | spin_lock_irqsave(&rocker->group_tbl_lock, flags); | |
2383 | hash_for_each_safe(rocker->group_tbl, bkt, tmp, group_entry, entry) | |
2384 | hash_del(&group_entry->entry); | |
2385 | spin_unlock_irqrestore(&rocker->group_tbl_lock, flags); | |
2386 | ||
2387 | spin_lock_irqsave(&rocker->fdb_tbl_lock, flags); | |
2388 | hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, fdb_entry, entry) | |
2389 | hash_del(&fdb_entry->entry); | |
2390 | spin_unlock_irqrestore(&rocker->fdb_tbl_lock, flags); | |
2391 | ||
2392 | spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, flags); | |
2393 | hash_for_each_safe(rocker->internal_vlan_tbl, bkt, | |
2394 | tmp, internal_vlan_entry, entry) | |
2395 | hash_del(&internal_vlan_entry->entry); | |
2396 | spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, flags); | |
c1beeef7 SF |
2397 | |
2398 | spin_lock_irqsave(&rocker->neigh_tbl_lock, flags); | |
2399 | hash_for_each_safe(rocker->neigh_tbl, bkt, tmp, neigh_entry, entry) | |
2400 | hash_del(&neigh_entry->entry); | |
2401 | spin_unlock_irqrestore(&rocker->neigh_tbl_lock, flags); | |
9f6bbf7c SF |
2402 | } |
2403 | ||
2404 | static struct rocker_flow_tbl_entry * | |
2405 | rocker_flow_tbl_find(struct rocker *rocker, struct rocker_flow_tbl_entry *match) | |
2406 | { | |
2407 | struct rocker_flow_tbl_entry *found; | |
c1beeef7 | 2408 | size_t key_len = match->key_len ? match->key_len : sizeof(found->key); |
9f6bbf7c SF |
2409 | |
2410 | hash_for_each_possible(rocker->flow_tbl, found, | |
2411 | entry, match->key_crc32) { | |
c1beeef7 | 2412 | if (memcmp(&found->key, &match->key, key_len) == 0) |
9f6bbf7c SF |
2413 | return found; |
2414 | } | |
2415 | ||
2416 | return NULL; | |
2417 | } | |
2418 | ||
2419 | static int rocker_flow_tbl_add(struct rocker_port *rocker_port, | |
c4f20321 SF |
2420 | enum switchdev_trans trans, |
2421 | struct rocker_flow_tbl_entry *match) | |
9f6bbf7c SF |
2422 | { |
2423 | struct rocker *rocker = rocker_port->rocker; | |
2424 | struct rocker_flow_tbl_entry *found; | |
c1beeef7 | 2425 | size_t key_len = match->key_len ? match->key_len : sizeof(found->key); |
9f6bbf7c | 2426 | unsigned long flags; |
9f6bbf7c | 2427 | |
c1beeef7 | 2428 | match->key_crc32 = crc32(~0, &match->key, key_len); |
9f6bbf7c SF |
2429 | |
2430 | spin_lock_irqsave(&rocker->flow_tbl_lock, flags); | |
2431 | ||
2432 | found = rocker_flow_tbl_find(rocker, match); | |
2433 | ||
2434 | if (found) { | |
c1beeef7 | 2435 | match->cookie = found->cookie; |
c4f20321 SF |
2436 | if (trans != SWITCHDEV_TRANS_PREPARE) |
2437 | hash_del(&found->entry); | |
2438 | rocker_port_kfree(rocker_port, trans, found); | |
c1beeef7 SF |
2439 | found = match; |
2440 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_MOD; | |
9f6bbf7c SF |
2441 | } else { |
2442 | found = match; | |
2443 | found->cookie = rocker->flow_tbl_next_cookie++; | |
c1beeef7 | 2444 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_ADD; |
9f6bbf7c SF |
2445 | } |
2446 | ||
c4f20321 SF |
2447 | if (trans != SWITCHDEV_TRANS_PREPARE) |
2448 | hash_add(rocker->flow_tbl, &found->entry, found->key_crc32); | |
9f6bbf7c SF |
2449 | |
2450 | spin_unlock_irqrestore(&rocker->flow_tbl_lock, flags); | |
2451 | ||
c4f20321 | 2452 | return rocker_cmd_exec(rocker, rocker_port, trans, |
c1beeef7 | 2453 | rocker_cmd_flow_tbl_add, |
c4f20321 | 2454 | found, NULL, NULL); |
9f6bbf7c SF |
2455 | } |
2456 | ||
2457 | static int rocker_flow_tbl_del(struct rocker_port *rocker_port, | |
c4f20321 SF |
2458 | enum switchdev_trans trans, |
2459 | struct rocker_flow_tbl_entry *match) | |
9f6bbf7c SF |
2460 | { |
2461 | struct rocker *rocker = rocker_port->rocker; | |
2462 | struct rocker_flow_tbl_entry *found; | |
c1beeef7 | 2463 | size_t key_len = match->key_len ? match->key_len : sizeof(found->key); |
9f6bbf7c | 2464 | unsigned long flags; |
9f6bbf7c SF |
2465 | int err = 0; |
2466 | ||
c1beeef7 | 2467 | match->key_crc32 = crc32(~0, &match->key, key_len); |
9f6bbf7c SF |
2468 | |
2469 | spin_lock_irqsave(&rocker->flow_tbl_lock, flags); | |
2470 | ||
2471 | found = rocker_flow_tbl_find(rocker, match); | |
2472 | ||
2473 | if (found) { | |
c4f20321 SF |
2474 | if (trans != SWITCHDEV_TRANS_PREPARE) |
2475 | hash_del(&found->entry); | |
c1beeef7 | 2476 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_DEL; |
9f6bbf7c SF |
2477 | } |
2478 | ||
2479 | spin_unlock_irqrestore(&rocker->flow_tbl_lock, flags); | |
2480 | ||
c4f20321 | 2481 | rocker_port_kfree(rocker_port, trans, match); |
9f6bbf7c | 2482 | |
c1beeef7 | 2483 | if (found) { |
c4f20321 | 2484 | err = rocker_cmd_exec(rocker, rocker_port, trans, |
9f6bbf7c | 2485 | rocker_cmd_flow_tbl_del, |
c4f20321 SF |
2486 | found, NULL, NULL); |
2487 | rocker_port_kfree(rocker_port, trans, found); | |
9f6bbf7c SF |
2488 | } |
2489 | ||
2490 | return err; | |
2491 | } | |
2492 | ||
9f6bbf7c | 2493 | static int rocker_flow_tbl_do(struct rocker_port *rocker_port, |
c4f20321 SF |
2494 | enum switchdev_trans trans, int flags, |
2495 | struct rocker_flow_tbl_entry *entry) | |
9f6bbf7c | 2496 | { |
9f6bbf7c | 2497 | if (flags & ROCKER_OP_FLAG_REMOVE) |
c4f20321 | 2498 | return rocker_flow_tbl_del(rocker_port, trans, entry); |
9f6bbf7c | 2499 | else |
c4f20321 | 2500 | return rocker_flow_tbl_add(rocker_port, trans, entry); |
9f6bbf7c SF |
2501 | } |
2502 | ||
2503 | static int rocker_flow_tbl_ig_port(struct rocker_port *rocker_port, | |
c4f20321 SF |
2504 | enum switchdev_trans trans, int flags, |
2505 | u32 in_pport, u32 in_pport_mask, | |
9f6bbf7c SF |
2506 | enum rocker_of_dpa_table_id goto_tbl) |
2507 | { | |
2508 | struct rocker_flow_tbl_entry *entry; | |
2509 | ||
c4f20321 | 2510 | entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry)); |
9f6bbf7c SF |
2511 | if (!entry) |
2512 | return -ENOMEM; | |
2513 | ||
2514 | entry->key.priority = ROCKER_PRIORITY_IG_PORT; | |
2515 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT; | |
4a6bb6d3 SF |
2516 | entry->key.ig_port.in_pport = in_pport; |
2517 | entry->key.ig_port.in_pport_mask = in_pport_mask; | |
9f6bbf7c SF |
2518 | entry->key.ig_port.goto_tbl = goto_tbl; |
2519 | ||
c4f20321 | 2520 | return rocker_flow_tbl_do(rocker_port, trans, flags, entry); |
9f6bbf7c SF |
2521 | } |
2522 | ||
2523 | static int rocker_flow_tbl_vlan(struct rocker_port *rocker_port, | |
c4f20321 SF |
2524 | enum switchdev_trans trans, int flags, |
2525 | u32 in_pport, __be16 vlan_id, | |
2526 | __be16 vlan_id_mask, | |
9f6bbf7c SF |
2527 | enum rocker_of_dpa_table_id goto_tbl, |
2528 | bool untagged, __be16 new_vlan_id) | |
2529 | { | |
2530 | struct rocker_flow_tbl_entry *entry; | |
2531 | ||
c4f20321 | 2532 | entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry)); |
9f6bbf7c SF |
2533 | if (!entry) |
2534 | return -ENOMEM; | |
2535 | ||
2536 | entry->key.priority = ROCKER_PRIORITY_VLAN; | |
2537 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_VLAN; | |
4a6bb6d3 | 2538 | entry->key.vlan.in_pport = in_pport; |
9f6bbf7c SF |
2539 | entry->key.vlan.vlan_id = vlan_id; |
2540 | entry->key.vlan.vlan_id_mask = vlan_id_mask; | |
2541 | entry->key.vlan.goto_tbl = goto_tbl; | |
2542 | ||
2543 | entry->key.vlan.untagged = untagged; | |
2544 | entry->key.vlan.new_vlan_id = new_vlan_id; | |
2545 | ||
c4f20321 | 2546 | return rocker_flow_tbl_do(rocker_port, trans, flags, entry); |
9f6bbf7c SF |
2547 | } |
2548 | ||
2549 | static int rocker_flow_tbl_term_mac(struct rocker_port *rocker_port, | |
c4f20321 | 2550 | enum switchdev_trans trans, |
4a6bb6d3 | 2551 | u32 in_pport, u32 in_pport_mask, |
9f6bbf7c SF |
2552 | __be16 eth_type, const u8 *eth_dst, |
2553 | const u8 *eth_dst_mask, __be16 vlan_id, | |
2554 | __be16 vlan_id_mask, bool copy_to_cpu, | |
2555 | int flags) | |
2556 | { | |
2557 | struct rocker_flow_tbl_entry *entry; | |
2558 | ||
c4f20321 | 2559 | entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry)); |
9f6bbf7c SF |
2560 | if (!entry) |
2561 | return -ENOMEM; | |
2562 | ||
2563 | if (is_multicast_ether_addr(eth_dst)) { | |
2564 | entry->key.priority = ROCKER_PRIORITY_TERM_MAC_MCAST; | |
2565 | entry->key.term_mac.goto_tbl = | |
2566 | ROCKER_OF_DPA_TABLE_ID_MULTICAST_ROUTING; | |
2567 | } else { | |
2568 | entry->key.priority = ROCKER_PRIORITY_TERM_MAC_UCAST; | |
2569 | entry->key.term_mac.goto_tbl = | |
2570 | ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING; | |
2571 | } | |
2572 | ||
2573 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC; | |
4a6bb6d3 SF |
2574 | entry->key.term_mac.in_pport = in_pport; |
2575 | entry->key.term_mac.in_pport_mask = in_pport_mask; | |
9f6bbf7c SF |
2576 | entry->key.term_mac.eth_type = eth_type; |
2577 | ether_addr_copy(entry->key.term_mac.eth_dst, eth_dst); | |
2578 | ether_addr_copy(entry->key.term_mac.eth_dst_mask, eth_dst_mask); | |
2579 | entry->key.term_mac.vlan_id = vlan_id; | |
2580 | entry->key.term_mac.vlan_id_mask = vlan_id_mask; | |
2581 | entry->key.term_mac.copy_to_cpu = copy_to_cpu; | |
2582 | ||
c4f20321 | 2583 | return rocker_flow_tbl_do(rocker_port, trans, flags, entry); |
9f6bbf7c SF |
2584 | } |
2585 | ||
2586 | static int rocker_flow_tbl_bridge(struct rocker_port *rocker_port, | |
c4f20321 | 2587 | enum switchdev_trans trans, int flags, |
9f6bbf7c SF |
2588 | const u8 *eth_dst, const u8 *eth_dst_mask, |
2589 | __be16 vlan_id, u32 tunnel_id, | |
2590 | enum rocker_of_dpa_table_id goto_tbl, | |
2591 | u32 group_id, bool copy_to_cpu) | |
2592 | { | |
2593 | struct rocker_flow_tbl_entry *entry; | |
2594 | u32 priority; | |
2595 | bool vlan_bridging = !!vlan_id; | |
2596 | bool dflt = !eth_dst || (eth_dst && eth_dst_mask); | |
2597 | bool wild = false; | |
2598 | ||
c4f20321 | 2599 | entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry)); |
9f6bbf7c SF |
2600 | if (!entry) |
2601 | return -ENOMEM; | |
2602 | ||
2603 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_BRIDGING; | |
2604 | ||
2605 | if (eth_dst) { | |
2606 | entry->key.bridge.has_eth_dst = 1; | |
2607 | ether_addr_copy(entry->key.bridge.eth_dst, eth_dst); | |
2608 | } | |
2609 | if (eth_dst_mask) { | |
2610 | entry->key.bridge.has_eth_dst_mask = 1; | |
2611 | ether_addr_copy(entry->key.bridge.eth_dst_mask, eth_dst_mask); | |
629161f6 | 2612 | if (!ether_addr_equal(eth_dst_mask, ff_mac)) |
9f6bbf7c SF |
2613 | wild = true; |
2614 | } | |
2615 | ||
2616 | priority = ROCKER_PRIORITY_UNKNOWN; | |
51ace887 | 2617 | if (vlan_bridging && dflt && wild) |
9f6bbf7c | 2618 | priority = ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_WILD; |
51ace887 | 2619 | else if (vlan_bridging && dflt && !wild) |
9f6bbf7c | 2620 | priority = ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_EXACT; |
51ace887 | 2621 | else if (vlan_bridging && !dflt) |
9f6bbf7c | 2622 | priority = ROCKER_PRIORITY_BRIDGING_VLAN; |
51ace887 | 2623 | else if (!vlan_bridging && dflt && wild) |
9f6bbf7c | 2624 | priority = ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_WILD; |
51ace887 | 2625 | else if (!vlan_bridging && dflt && !wild) |
9f6bbf7c | 2626 | priority = ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_EXACT; |
51ace887 | 2627 | else if (!vlan_bridging && !dflt) |
9f6bbf7c SF |
2628 | priority = ROCKER_PRIORITY_BRIDGING_TENANT; |
2629 | ||
2630 | entry->key.priority = priority; | |
2631 | entry->key.bridge.vlan_id = vlan_id; | |
2632 | entry->key.bridge.tunnel_id = tunnel_id; | |
2633 | entry->key.bridge.goto_tbl = goto_tbl; | |
2634 | entry->key.bridge.group_id = group_id; | |
2635 | entry->key.bridge.copy_to_cpu = copy_to_cpu; | |
2636 | ||
c4f20321 | 2637 | return rocker_flow_tbl_do(rocker_port, trans, flags, entry); |
9f6bbf7c SF |
2638 | } |
2639 | ||
c1beeef7 | 2640 | static int rocker_flow_tbl_ucast4_routing(struct rocker_port *rocker_port, |
c4f20321 | 2641 | enum switchdev_trans trans, |
c1beeef7 SF |
2642 | __be16 eth_type, __be32 dst, |
2643 | __be32 dst_mask, u32 priority, | |
2644 | enum rocker_of_dpa_table_id goto_tbl, | |
2645 | u32 group_id, int flags) | |
2646 | { | |
2647 | struct rocker_flow_tbl_entry *entry; | |
2648 | ||
c4f20321 | 2649 | entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry)); |
c1beeef7 SF |
2650 | if (!entry) |
2651 | return -ENOMEM; | |
2652 | ||
2653 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING; | |
2654 | entry->key.priority = priority; | |
2655 | entry->key.ucast_routing.eth_type = eth_type; | |
2656 | entry->key.ucast_routing.dst4 = dst; | |
2657 | entry->key.ucast_routing.dst4_mask = dst_mask; | |
2658 | entry->key.ucast_routing.goto_tbl = goto_tbl; | |
2659 | entry->key.ucast_routing.group_id = group_id; | |
2660 | entry->key_len = offsetof(struct rocker_flow_tbl_key, | |
2661 | ucast_routing.group_id); | |
2662 | ||
c4f20321 | 2663 | return rocker_flow_tbl_do(rocker_port, trans, flags, entry); |
c1beeef7 SF |
2664 | } |
2665 | ||
9f6bbf7c | 2666 | static int rocker_flow_tbl_acl(struct rocker_port *rocker_port, |
c4f20321 SF |
2667 | enum switchdev_trans trans, int flags, |
2668 | u32 in_pport, u32 in_pport_mask, | |
9f6bbf7c SF |
2669 | const u8 *eth_src, const u8 *eth_src_mask, |
2670 | const u8 *eth_dst, const u8 *eth_dst_mask, | |
c4f20321 SF |
2671 | __be16 eth_type, __be16 vlan_id, |
2672 | __be16 vlan_id_mask, u8 ip_proto, | |
2673 | u8 ip_proto_mask, u8 ip_tos, u8 ip_tos_mask, | |
9f6bbf7c SF |
2674 | u32 group_id) |
2675 | { | |
2676 | u32 priority; | |
2677 | struct rocker_flow_tbl_entry *entry; | |
2678 | ||
c4f20321 | 2679 | entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry)); |
9f6bbf7c SF |
2680 | if (!entry) |
2681 | return -ENOMEM; | |
2682 | ||
2683 | priority = ROCKER_PRIORITY_ACL_NORMAL; | |
2684 | if (eth_dst && eth_dst_mask) { | |
629161f6 | 2685 | if (ether_addr_equal(eth_dst_mask, mcast_mac)) |
9f6bbf7c SF |
2686 | priority = ROCKER_PRIORITY_ACL_DFLT; |
2687 | else if (is_link_local_ether_addr(eth_dst)) | |
2688 | priority = ROCKER_PRIORITY_ACL_CTRL; | |
2689 | } | |
2690 | ||
2691 | entry->key.priority = priority; | |
2692 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_ACL_POLICY; | |
4a6bb6d3 SF |
2693 | entry->key.acl.in_pport = in_pport; |
2694 | entry->key.acl.in_pport_mask = in_pport_mask; | |
9f6bbf7c SF |
2695 | |
2696 | if (eth_src) | |
2697 | ether_addr_copy(entry->key.acl.eth_src, eth_src); | |
2698 | if (eth_src_mask) | |
2699 | ether_addr_copy(entry->key.acl.eth_src_mask, eth_src_mask); | |
2700 | if (eth_dst) | |
2701 | ether_addr_copy(entry->key.acl.eth_dst, eth_dst); | |
2702 | if (eth_dst_mask) | |
2703 | ether_addr_copy(entry->key.acl.eth_dst_mask, eth_dst_mask); | |
2704 | ||
2705 | entry->key.acl.eth_type = eth_type; | |
2706 | entry->key.acl.vlan_id = vlan_id; | |
2707 | entry->key.acl.vlan_id_mask = vlan_id_mask; | |
2708 | entry->key.acl.ip_proto = ip_proto; | |
2709 | entry->key.acl.ip_proto_mask = ip_proto_mask; | |
2710 | entry->key.acl.ip_tos = ip_tos; | |
2711 | entry->key.acl.ip_tos_mask = ip_tos_mask; | |
2712 | entry->key.acl.group_id = group_id; | |
2713 | ||
c4f20321 | 2714 | return rocker_flow_tbl_do(rocker_port, trans, flags, entry); |
9f6bbf7c SF |
2715 | } |
2716 | ||
2717 | static struct rocker_group_tbl_entry * | |
2718 | rocker_group_tbl_find(struct rocker *rocker, | |
2719 | struct rocker_group_tbl_entry *match) | |
2720 | { | |
2721 | struct rocker_group_tbl_entry *found; | |
2722 | ||
2723 | hash_for_each_possible(rocker->group_tbl, found, | |
2724 | entry, match->group_id) { | |
2725 | if (found->group_id == match->group_id) | |
2726 | return found; | |
2727 | } | |
2728 | ||
2729 | return NULL; | |
2730 | } | |
2731 | ||
c4f20321 SF |
2732 | static void rocker_group_tbl_entry_free(struct rocker_port *rocker_port, |
2733 | enum switchdev_trans trans, | |
2734 | struct rocker_group_tbl_entry *entry) | |
9f6bbf7c SF |
2735 | { |
2736 | switch (ROCKER_GROUP_TYPE_GET(entry->group_id)) { | |
2737 | case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD: | |
2738 | case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST: | |
c4f20321 | 2739 | rocker_port_kfree(rocker_port, trans, entry->group_ids); |
9f6bbf7c SF |
2740 | break; |
2741 | default: | |
2742 | break; | |
2743 | } | |
c4f20321 | 2744 | rocker_port_kfree(rocker_port, trans, entry); |
9f6bbf7c SF |
2745 | } |
2746 | ||
2747 | static int rocker_group_tbl_add(struct rocker_port *rocker_port, | |
c4f20321 SF |
2748 | enum switchdev_trans trans, |
2749 | struct rocker_group_tbl_entry *match) | |
9f6bbf7c SF |
2750 | { |
2751 | struct rocker *rocker = rocker_port->rocker; | |
2752 | struct rocker_group_tbl_entry *found; | |
2753 | unsigned long flags; | |
9f6bbf7c SF |
2754 | |
2755 | spin_lock_irqsave(&rocker->group_tbl_lock, flags); | |
2756 | ||
2757 | found = rocker_group_tbl_find(rocker, match); | |
2758 | ||
2759 | if (found) { | |
c4f20321 SF |
2760 | if (trans != SWITCHDEV_TRANS_PREPARE) |
2761 | hash_del(&found->entry); | |
2762 | rocker_group_tbl_entry_free(rocker_port, trans, found); | |
9f6bbf7c SF |
2763 | found = match; |
2764 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_MOD; | |
2765 | } else { | |
2766 | found = match; | |
2767 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_ADD; | |
2768 | } | |
2769 | ||
c4f20321 SF |
2770 | if (trans != SWITCHDEV_TRANS_PREPARE) |
2771 | hash_add(rocker->group_tbl, &found->entry, found->group_id); | |
9f6bbf7c SF |
2772 | |
2773 | spin_unlock_irqrestore(&rocker->group_tbl_lock, flags); | |
2774 | ||
c4f20321 | 2775 | return rocker_cmd_exec(rocker, rocker_port, trans, |
c1beeef7 | 2776 | rocker_cmd_group_tbl_add, |
c4f20321 | 2777 | found, NULL, NULL); |
9f6bbf7c SF |
2778 | } |
2779 | ||
2780 | static int rocker_group_tbl_del(struct rocker_port *rocker_port, | |
c4f20321 SF |
2781 | enum switchdev_trans trans, |
2782 | struct rocker_group_tbl_entry *match) | |
9f6bbf7c SF |
2783 | { |
2784 | struct rocker *rocker = rocker_port->rocker; | |
2785 | struct rocker_group_tbl_entry *found; | |
2786 | unsigned long flags; | |
2787 | int err = 0; | |
2788 | ||
2789 | spin_lock_irqsave(&rocker->group_tbl_lock, flags); | |
2790 | ||
2791 | found = rocker_group_tbl_find(rocker, match); | |
2792 | ||
2793 | if (found) { | |
c4f20321 SF |
2794 | if (trans != SWITCHDEV_TRANS_PREPARE) |
2795 | hash_del(&found->entry); | |
9f6bbf7c SF |
2796 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_DEL; |
2797 | } | |
2798 | ||
2799 | spin_unlock_irqrestore(&rocker->group_tbl_lock, flags); | |
2800 | ||
c4f20321 | 2801 | rocker_group_tbl_entry_free(rocker_port, trans, match); |
9f6bbf7c SF |
2802 | |
2803 | if (found) { | |
c4f20321 | 2804 | err = rocker_cmd_exec(rocker, rocker_port, trans, |
9f6bbf7c | 2805 | rocker_cmd_group_tbl_del, |
c4f20321 SF |
2806 | found, NULL, NULL); |
2807 | rocker_group_tbl_entry_free(rocker_port, trans, found); | |
9f6bbf7c SF |
2808 | } |
2809 | ||
2810 | return err; | |
2811 | } | |
2812 | ||
2813 | static int rocker_group_tbl_do(struct rocker_port *rocker_port, | |
c4f20321 SF |
2814 | enum switchdev_trans trans, int flags, |
2815 | struct rocker_group_tbl_entry *entry) | |
9f6bbf7c | 2816 | { |
9f6bbf7c | 2817 | if (flags & ROCKER_OP_FLAG_REMOVE) |
c4f20321 | 2818 | return rocker_group_tbl_del(rocker_port, trans, entry); |
9f6bbf7c | 2819 | else |
c4f20321 | 2820 | return rocker_group_tbl_add(rocker_port, trans, entry); |
9f6bbf7c SF |
2821 | } |
2822 | ||
2823 | static int rocker_group_l2_interface(struct rocker_port *rocker_port, | |
c4f20321 SF |
2824 | enum switchdev_trans trans, int flags, |
2825 | __be16 vlan_id, u32 out_pport, | |
2826 | int pop_vlan) | |
9f6bbf7c SF |
2827 | { |
2828 | struct rocker_group_tbl_entry *entry; | |
2829 | ||
c4f20321 | 2830 | entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry)); |
9f6bbf7c SF |
2831 | if (!entry) |
2832 | return -ENOMEM; | |
2833 | ||
4a6bb6d3 | 2834 | entry->group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport); |
9f6bbf7c SF |
2835 | entry->l2_interface.pop_vlan = pop_vlan; |
2836 | ||
c4f20321 | 2837 | return rocker_group_tbl_do(rocker_port, trans, flags, entry); |
9f6bbf7c SF |
2838 | } |
2839 | ||
2840 | static int rocker_group_l2_fan_out(struct rocker_port *rocker_port, | |
c4f20321 | 2841 | enum switchdev_trans trans, |
9f6bbf7c SF |
2842 | int flags, u8 group_count, |
2843 | u32 *group_ids, u32 group_id) | |
2844 | { | |
2845 | struct rocker_group_tbl_entry *entry; | |
2846 | ||
c4f20321 | 2847 | entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry)); |
9f6bbf7c SF |
2848 | if (!entry) |
2849 | return -ENOMEM; | |
2850 | ||
2851 | entry->group_id = group_id; | |
2852 | entry->group_count = group_count; | |
2853 | ||
c4f20321 SF |
2854 | entry->group_ids = rocker_port_kcalloc(rocker_port, trans, group_count, |
2855 | sizeof(u32)); | |
9f6bbf7c | 2856 | if (!entry->group_ids) { |
c4f20321 | 2857 | rocker_port_kfree(rocker_port, trans, entry); |
9f6bbf7c SF |
2858 | return -ENOMEM; |
2859 | } | |
2860 | memcpy(entry->group_ids, group_ids, group_count * sizeof(u32)); | |
2861 | ||
c4f20321 | 2862 | return rocker_group_tbl_do(rocker_port, trans, flags, entry); |
9f6bbf7c SF |
2863 | } |
2864 | ||
2865 | static int rocker_group_l2_flood(struct rocker_port *rocker_port, | |
c4f20321 SF |
2866 | enum switchdev_trans trans, int flags, |
2867 | __be16 vlan_id, u8 group_count, | |
2868 | u32 *group_ids, u32 group_id) | |
9f6bbf7c | 2869 | { |
c4f20321 | 2870 | return rocker_group_l2_fan_out(rocker_port, trans, flags, |
9f6bbf7c SF |
2871 | group_count, group_ids, |
2872 | group_id); | |
2873 | } | |
2874 | ||
c1beeef7 | 2875 | static int rocker_group_l3_unicast(struct rocker_port *rocker_port, |
c4f20321 SF |
2876 | enum switchdev_trans trans, int flags, |
2877 | u32 index, u8 *src_mac, u8 *dst_mac, | |
2878 | __be16 vlan_id, bool ttl_check, u32 pport) | |
c1beeef7 SF |
2879 | { |
2880 | struct rocker_group_tbl_entry *entry; | |
2881 | ||
c4f20321 | 2882 | entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry)); |
c1beeef7 SF |
2883 | if (!entry) |
2884 | return -ENOMEM; | |
2885 | ||
2886 | entry->group_id = ROCKER_GROUP_L3_UNICAST(index); | |
2887 | if (src_mac) | |
2888 | ether_addr_copy(entry->l3_unicast.eth_src, src_mac); | |
2889 | if (dst_mac) | |
2890 | ether_addr_copy(entry->l3_unicast.eth_dst, dst_mac); | |
2891 | entry->l3_unicast.vlan_id = vlan_id; | |
2892 | entry->l3_unicast.ttl_check = ttl_check; | |
2893 | entry->l3_unicast.group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, pport); | |
2894 | ||
c4f20321 | 2895 | return rocker_group_tbl_do(rocker_port, trans, flags, entry); |
c1beeef7 SF |
2896 | } |
2897 | ||
2898 | static struct rocker_neigh_tbl_entry * | |
2899 | rocker_neigh_tbl_find(struct rocker *rocker, __be32 ip_addr) | |
2900 | { | |
2901 | struct rocker_neigh_tbl_entry *found; | |
2902 | ||
0f43deba SF |
2903 | hash_for_each_possible(rocker->neigh_tbl, found, |
2904 | entry, be32_to_cpu(ip_addr)) | |
c1beeef7 SF |
2905 | if (found->ip_addr == ip_addr) |
2906 | return found; | |
2907 | ||
2908 | return NULL; | |
2909 | } | |
2910 | ||
2911 | static void _rocker_neigh_add(struct rocker *rocker, | |
2912 | struct rocker_neigh_tbl_entry *entry) | |
2913 | { | |
2914 | entry->index = rocker->neigh_tbl_next_index++; | |
2915 | entry->ref_count++; | |
0f43deba SF |
2916 | hash_add(rocker->neigh_tbl, &entry->entry, |
2917 | be32_to_cpu(entry->ip_addr)); | |
c1beeef7 SF |
2918 | } |
2919 | ||
c4f20321 SF |
2920 | static void _rocker_neigh_del(struct rocker_port *rocker_port, |
2921 | enum switchdev_trans trans, | |
c1beeef7 SF |
2922 | struct rocker_neigh_tbl_entry *entry) |
2923 | { | |
2924 | if (--entry->ref_count == 0) { | |
2925 | hash_del(&entry->entry); | |
c4f20321 | 2926 | rocker_port_kfree(rocker_port, trans, entry); |
c1beeef7 SF |
2927 | } |
2928 | } | |
2929 | ||
c4f20321 | 2930 | static void _rocker_neigh_update(struct rocker_neigh_tbl_entry *entry, |
c1beeef7 SF |
2931 | u8 *eth_dst, bool ttl_check) |
2932 | { | |
2933 | if (eth_dst) { | |
2934 | ether_addr_copy(entry->eth_dst, eth_dst); | |
2935 | entry->ttl_check = ttl_check; | |
2936 | } else { | |
2937 | entry->ref_count++; | |
2938 | } | |
2939 | } | |
2940 | ||
2941 | static int rocker_port_ipv4_neigh(struct rocker_port *rocker_port, | |
c4f20321 | 2942 | enum switchdev_trans trans, |
c1beeef7 SF |
2943 | int flags, __be32 ip_addr, u8 *eth_dst) |
2944 | { | |
2945 | struct rocker *rocker = rocker_port->rocker; | |
2946 | struct rocker_neigh_tbl_entry *entry; | |
2947 | struct rocker_neigh_tbl_entry *found; | |
2948 | unsigned long lock_flags; | |
2949 | __be16 eth_type = htons(ETH_P_IP); | |
2950 | enum rocker_of_dpa_table_id goto_tbl = | |
2951 | ROCKER_OF_DPA_TABLE_ID_ACL_POLICY; | |
2952 | u32 group_id; | |
2953 | u32 priority = 0; | |
2954 | bool adding = !(flags & ROCKER_OP_FLAG_REMOVE); | |
2955 | bool updating; | |
2956 | bool removing; | |
2957 | int err = 0; | |
2958 | ||
c4f20321 | 2959 | entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry)); |
c1beeef7 SF |
2960 | if (!entry) |
2961 | return -ENOMEM; | |
2962 | ||
2963 | spin_lock_irqsave(&rocker->neigh_tbl_lock, lock_flags); | |
2964 | ||
2965 | found = rocker_neigh_tbl_find(rocker, ip_addr); | |
2966 | ||
2967 | updating = found && adding; | |
2968 | removing = found && !adding; | |
2969 | adding = !found && adding; | |
2970 | ||
2971 | if (adding) { | |
2972 | entry->ip_addr = ip_addr; | |
2973 | entry->dev = rocker_port->dev; | |
2974 | ether_addr_copy(entry->eth_dst, eth_dst); | |
2975 | entry->ttl_check = true; | |
2976 | _rocker_neigh_add(rocker, entry); | |
2977 | } else if (removing) { | |
2978 | memcpy(entry, found, sizeof(*entry)); | |
c4f20321 | 2979 | _rocker_neigh_del(rocker_port, trans, found); |
c1beeef7 | 2980 | } else if (updating) { |
c4f20321 | 2981 | _rocker_neigh_update(found, eth_dst, true); |
c1beeef7 SF |
2982 | memcpy(entry, found, sizeof(*entry)); |
2983 | } else { | |
2984 | err = -ENOENT; | |
2985 | } | |
2986 | ||
2987 | spin_unlock_irqrestore(&rocker->neigh_tbl_lock, lock_flags); | |
2988 | ||
2989 | if (err) | |
2990 | goto err_out; | |
2991 | ||
2992 | /* For each active neighbor, we have an L3 unicast group and | |
2993 | * a /32 route to the neighbor, which uses the L3 unicast | |
2994 | * group. The L3 unicast group can also be referred to by | |
2995 | * other routes' nexthops. | |
2996 | */ | |
2997 | ||
c4f20321 | 2998 | err = rocker_group_l3_unicast(rocker_port, trans, flags, |
c1beeef7 SF |
2999 | entry->index, |
3000 | rocker_port->dev->dev_addr, | |
3001 | entry->eth_dst, | |
3002 | rocker_port->internal_vlan_id, | |
3003 | entry->ttl_check, | |
3004 | rocker_port->pport); | |
3005 | if (err) { | |
3006 | netdev_err(rocker_port->dev, | |
3007 | "Error (%d) L3 unicast group index %d\n", | |
3008 | err, entry->index); | |
3009 | goto err_out; | |
3010 | } | |
3011 | ||
3012 | if (adding || removing) { | |
3013 | group_id = ROCKER_GROUP_L3_UNICAST(entry->index); | |
c4f20321 | 3014 | err = rocker_flow_tbl_ucast4_routing(rocker_port, trans, |
c1beeef7 SF |
3015 | eth_type, ip_addr, |
3016 | inet_make_mask(32), | |
3017 | priority, goto_tbl, | |
3018 | group_id, flags); | |
3019 | ||
3020 | if (err) | |
3021 | netdev_err(rocker_port->dev, | |
3022 | "Error (%d) /32 unicast route %pI4 group 0x%08x\n", | |
3023 | err, &entry->ip_addr, group_id); | |
3024 | } | |
3025 | ||
3026 | err_out: | |
3027 | if (!adding) | |
c4f20321 | 3028 | rocker_port_kfree(rocker_port, trans, entry); |
c1beeef7 SF |
3029 | |
3030 | return err; | |
3031 | } | |
3032 | ||
3033 | static int rocker_port_ipv4_resolve(struct rocker_port *rocker_port, | |
c4f20321 | 3034 | enum switchdev_trans trans, __be32 ip_addr) |
c1beeef7 SF |
3035 | { |
3036 | struct net_device *dev = rocker_port->dev; | |
0f43deba | 3037 | struct neighbour *n = __ipv4_neigh_lookup(dev, (__force u32)ip_addr); |
c1beeef7 SF |
3038 | int err = 0; |
3039 | ||
3040 | if (!n) | |
3041 | n = neigh_create(&arp_tbl, &ip_addr, dev); | |
3042 | if (!n) | |
3043 | return -ENOMEM; | |
3044 | ||
3045 | /* If the neigh is already resolved, then go ahead and | |
3046 | * install the entry, otherwise start the ARP process to | |
3047 | * resolve the neigh. | |
3048 | */ | |
3049 | ||
3050 | if (n->nud_state & NUD_VALID) | |
c4f20321 SF |
3051 | err = rocker_port_ipv4_neigh(rocker_port, trans, 0, |
3052 | ip_addr, n->ha); | |
c1beeef7 SF |
3053 | else |
3054 | neigh_event_send(n, NULL); | |
3055 | ||
3056 | return err; | |
3057 | } | |
3058 | ||
c4f20321 SF |
3059 | static int rocker_port_ipv4_nh(struct rocker_port *rocker_port, |
3060 | enum switchdev_trans trans, int flags, | |
c1beeef7 SF |
3061 | __be32 ip_addr, u32 *index) |
3062 | { | |
3063 | struct rocker *rocker = rocker_port->rocker; | |
3064 | struct rocker_neigh_tbl_entry *entry; | |
3065 | struct rocker_neigh_tbl_entry *found; | |
3066 | unsigned long lock_flags; | |
3067 | bool adding = !(flags & ROCKER_OP_FLAG_REMOVE); | |
3068 | bool updating; | |
3069 | bool removing; | |
3070 | bool resolved = true; | |
3071 | int err = 0; | |
3072 | ||
c4f20321 | 3073 | entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry)); |
c1beeef7 SF |
3074 | if (!entry) |
3075 | return -ENOMEM; | |
3076 | ||
3077 | spin_lock_irqsave(&rocker->neigh_tbl_lock, lock_flags); | |
3078 | ||
3079 | found = rocker_neigh_tbl_find(rocker, ip_addr); | |
3080 | if (found) | |
3081 | *index = found->index; | |
3082 | ||
3083 | updating = found && adding; | |
3084 | removing = found && !adding; | |
3085 | adding = !found && adding; | |
3086 | ||
3087 | if (adding) { | |
3088 | entry->ip_addr = ip_addr; | |
3089 | entry->dev = rocker_port->dev; | |
3090 | _rocker_neigh_add(rocker, entry); | |
3091 | *index = entry->index; | |
3092 | resolved = false; | |
3093 | } else if (removing) { | |
c4f20321 | 3094 | _rocker_neigh_del(rocker_port, trans, found); |
c1beeef7 | 3095 | } else if (updating) { |
c4f20321 | 3096 | _rocker_neigh_update(found, NULL, false); |
c1beeef7 SF |
3097 | resolved = !is_zero_ether_addr(found->eth_dst); |
3098 | } else { | |
3099 | err = -ENOENT; | |
3100 | } | |
3101 | ||
3102 | spin_unlock_irqrestore(&rocker->neigh_tbl_lock, lock_flags); | |
3103 | ||
3104 | if (!adding) | |
c4f20321 | 3105 | rocker_port_kfree(rocker_port, trans, entry); |
c1beeef7 SF |
3106 | |
3107 | if (err) | |
3108 | return err; | |
3109 | ||
3110 | /* Resolved means neigh ip_addr is resolved to neigh mac. */ | |
3111 | ||
3112 | if (!resolved) | |
c4f20321 | 3113 | err = rocker_port_ipv4_resolve(rocker_port, trans, ip_addr); |
c1beeef7 SF |
3114 | |
3115 | return err; | |
3116 | } | |
3117 | ||
6c707945 | 3118 | static int rocker_port_vlan_flood_group(struct rocker_port *rocker_port, |
c4f20321 | 3119 | enum switchdev_trans trans, |
6c707945 SF |
3120 | int flags, __be16 vlan_id) |
3121 | { | |
3122 | struct rocker_port *p; | |
3123 | struct rocker *rocker = rocker_port->rocker; | |
3124 | u32 group_id = ROCKER_GROUP_L2_FLOOD(vlan_id, 0); | |
04f49faf | 3125 | u32 *group_ids; |
6c707945 | 3126 | u8 group_count = 0; |
04f49faf | 3127 | int err = 0; |
6c707945 SF |
3128 | int i; |
3129 | ||
c4f20321 SF |
3130 | group_ids = rocker_port_kcalloc(rocker_port, trans, rocker->port_count, |
3131 | sizeof(u32)); | |
04f49faf SF |
3132 | if (!group_ids) |
3133 | return -ENOMEM; | |
3134 | ||
6c707945 SF |
3135 | /* Adjust the flood group for this VLAN. The flood group |
3136 | * references an L2 interface group for each port in this | |
3137 | * VLAN. | |
3138 | */ | |
3139 | ||
3140 | for (i = 0; i < rocker->port_count; i++) { | |
3141 | p = rocker->ports[i]; | |
3142 | if (!rocker_port_is_bridged(p)) | |
3143 | continue; | |
3144 | if (test_bit(ntohs(vlan_id), p->vlan_bitmap)) { | |
3145 | group_ids[group_count++] = | |
4a6bb6d3 | 3146 | ROCKER_GROUP_L2_INTERFACE(vlan_id, p->pport); |
6c707945 SF |
3147 | } |
3148 | } | |
3149 | ||
3150 | /* If there are no bridged ports in this VLAN, we're done */ | |
3151 | if (group_count == 0) | |
04f49faf | 3152 | goto no_ports_in_vlan; |
6c707945 | 3153 | |
c4f20321 SF |
3154 | err = rocker_group_l2_flood(rocker_port, trans, flags, vlan_id, |
3155 | group_count, group_ids, group_id); | |
6c707945 SF |
3156 | if (err) |
3157 | netdev_err(rocker_port->dev, | |
3158 | "Error (%d) port VLAN l2 flood group\n", err); | |
3159 | ||
04f49faf | 3160 | no_ports_in_vlan: |
c4f20321 | 3161 | rocker_port_kfree(rocker_port, trans, group_ids); |
6c707945 SF |
3162 | return err; |
3163 | } | |
3164 | ||
3165 | static int rocker_port_vlan_l2_groups(struct rocker_port *rocker_port, | |
c4f20321 SF |
3166 | enum switchdev_trans trans, int flags, |
3167 | __be16 vlan_id, bool pop_vlan) | |
6c707945 SF |
3168 | { |
3169 | struct rocker *rocker = rocker_port->rocker; | |
3170 | struct rocker_port *p; | |
3171 | bool adding = !(flags & ROCKER_OP_FLAG_REMOVE); | |
4a6bb6d3 | 3172 | u32 out_pport; |
6c707945 SF |
3173 | int ref = 0; |
3174 | int err; | |
3175 | int i; | |
3176 | ||
3177 | /* An L2 interface group for this port in this VLAN, but | |
3178 | * only when port STP state is LEARNING|FORWARDING. | |
3179 | */ | |
3180 | ||
3181 | if (rocker_port->stp_state == BR_STATE_LEARNING || | |
3182 | rocker_port->stp_state == BR_STATE_FORWARDING) { | |
4a6bb6d3 | 3183 | out_pport = rocker_port->pport; |
c4f20321 SF |
3184 | err = rocker_group_l2_interface(rocker_port, trans, flags, |
3185 | vlan_id, out_pport, pop_vlan); | |
6c707945 SF |
3186 | if (err) { |
3187 | netdev_err(rocker_port->dev, | |
4a6bb6d3 SF |
3188 | "Error (%d) port VLAN l2 group for pport %d\n", |
3189 | err, out_pport); | |
6c707945 SF |
3190 | return err; |
3191 | } | |
3192 | } | |
3193 | ||
3194 | /* An L2 interface group for this VLAN to CPU port. | |
3195 | * Add when first port joins this VLAN and destroy when | |
3196 | * last port leaves this VLAN. | |
3197 | */ | |
3198 | ||
3199 | for (i = 0; i < rocker->port_count; i++) { | |
3200 | p = rocker->ports[i]; | |
3201 | if (test_bit(ntohs(vlan_id), p->vlan_bitmap)) | |
3202 | ref++; | |
3203 | } | |
3204 | ||
3205 | if ((!adding || ref != 1) && (adding || ref != 0)) | |
3206 | return 0; | |
3207 | ||
4a6bb6d3 | 3208 | out_pport = 0; |
c4f20321 SF |
3209 | err = rocker_group_l2_interface(rocker_port, trans, flags, |
3210 | vlan_id, out_pport, pop_vlan); | |
6c707945 SF |
3211 | if (err) { |
3212 | netdev_err(rocker_port->dev, | |
3213 | "Error (%d) port VLAN l2 group for CPU port\n", err); | |
3214 | return err; | |
3215 | } | |
3216 | ||
3217 | return 0; | |
3218 | } | |
3219 | ||
9f6bbf7c SF |
3220 | static struct rocker_ctrl { |
3221 | const u8 *eth_dst; | |
3222 | const u8 *eth_dst_mask; | |
11e6c65a | 3223 | __be16 eth_type; |
9f6bbf7c SF |
3224 | bool acl; |
3225 | bool bridge; | |
3226 | bool term; | |
3227 | bool copy_to_cpu; | |
3228 | } rocker_ctrls[] = { | |
3229 | [ROCKER_CTRL_LINK_LOCAL_MCAST] = { | |
3230 | /* pass link local multicast pkts up to CPU for filtering */ | |
3231 | .eth_dst = ll_mac, | |
3232 | .eth_dst_mask = ll_mask, | |
3233 | .acl = true, | |
3234 | }, | |
3235 | [ROCKER_CTRL_LOCAL_ARP] = { | |
3236 | /* pass local ARP pkts up to CPU */ | |
3237 | .eth_dst = zero_mac, | |
3238 | .eth_dst_mask = zero_mac, | |
3239 | .eth_type = htons(ETH_P_ARP), | |
3240 | .acl = true, | |
3241 | }, | |
3242 | [ROCKER_CTRL_IPV4_MCAST] = { | |
3243 | /* pass IPv4 mcast pkts up to CPU, RFC 1112 */ | |
3244 | .eth_dst = ipv4_mcast, | |
3245 | .eth_dst_mask = ipv4_mask, | |
3246 | .eth_type = htons(ETH_P_IP), | |
3247 | .term = true, | |
3248 | .copy_to_cpu = true, | |
3249 | }, | |
3250 | [ROCKER_CTRL_IPV6_MCAST] = { | |
3251 | /* pass IPv6 mcast pkts up to CPU, RFC 2464 */ | |
3252 | .eth_dst = ipv6_mcast, | |
3253 | .eth_dst_mask = ipv6_mask, | |
3254 | .eth_type = htons(ETH_P_IPV6), | |
3255 | .term = true, | |
3256 | .copy_to_cpu = true, | |
3257 | }, | |
3258 | [ROCKER_CTRL_DFLT_BRIDGING] = { | |
3259 | /* flood any pkts on vlan */ | |
3260 | .bridge = true, | |
3261 | .copy_to_cpu = true, | |
3262 | }, | |
3263 | }; | |
3264 | ||
3265 | static int rocker_port_ctrl_vlan_acl(struct rocker_port *rocker_port, | |
c4f20321 SF |
3266 | enum switchdev_trans trans, int flags, |
3267 | struct rocker_ctrl *ctrl, __be16 vlan_id) | |
9f6bbf7c | 3268 | { |
4a6bb6d3 SF |
3269 | u32 in_pport = rocker_port->pport; |
3270 | u32 in_pport_mask = 0xffffffff; | |
3271 | u32 out_pport = 0; | |
9f6bbf7c SF |
3272 | u8 *eth_src = NULL; |
3273 | u8 *eth_src_mask = NULL; | |
3274 | __be16 vlan_id_mask = htons(0xffff); | |
3275 | u8 ip_proto = 0; | |
3276 | u8 ip_proto_mask = 0; | |
3277 | u8 ip_tos = 0; | |
3278 | u8 ip_tos_mask = 0; | |
4a6bb6d3 | 3279 | u32 group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport); |
9f6bbf7c SF |
3280 | int err; |
3281 | ||
c4f20321 | 3282 | err = rocker_flow_tbl_acl(rocker_port, trans, flags, |
4a6bb6d3 | 3283 | in_pport, in_pport_mask, |
9f6bbf7c SF |
3284 | eth_src, eth_src_mask, |
3285 | ctrl->eth_dst, ctrl->eth_dst_mask, | |
3286 | ctrl->eth_type, | |
3287 | vlan_id, vlan_id_mask, | |
3288 | ip_proto, ip_proto_mask, | |
3289 | ip_tos, ip_tos_mask, | |
3290 | group_id); | |
3291 | ||
3292 | if (err) | |
3293 | netdev_err(rocker_port->dev, "Error (%d) ctrl ACL\n", err); | |
3294 | ||
3295 | return err; | |
3296 | } | |
3297 | ||
6c707945 | 3298 | static int rocker_port_ctrl_vlan_bridge(struct rocker_port *rocker_port, |
c4f20321 SF |
3299 | enum switchdev_trans trans, int flags, |
3300 | struct rocker_ctrl *ctrl, | |
6c707945 SF |
3301 | __be16 vlan_id) |
3302 | { | |
3303 | enum rocker_of_dpa_table_id goto_tbl = | |
3304 | ROCKER_OF_DPA_TABLE_ID_ACL_POLICY; | |
3305 | u32 group_id = ROCKER_GROUP_L2_FLOOD(vlan_id, 0); | |
3306 | u32 tunnel_id = 0; | |
3307 | int err; | |
3308 | ||
3309 | if (!rocker_port_is_bridged(rocker_port)) | |
3310 | return 0; | |
3311 | ||
c4f20321 | 3312 | err = rocker_flow_tbl_bridge(rocker_port, trans, flags, |
6c707945 SF |
3313 | ctrl->eth_dst, ctrl->eth_dst_mask, |
3314 | vlan_id, tunnel_id, | |
3315 | goto_tbl, group_id, ctrl->copy_to_cpu); | |
3316 | ||
3317 | if (err) | |
3318 | netdev_err(rocker_port->dev, "Error (%d) ctrl FLOOD\n", err); | |
3319 | ||
3320 | return err; | |
3321 | } | |
3322 | ||
9f6bbf7c | 3323 | static int rocker_port_ctrl_vlan_term(struct rocker_port *rocker_port, |
c4f20321 SF |
3324 | enum switchdev_trans trans, int flags, |
3325 | struct rocker_ctrl *ctrl, __be16 vlan_id) | |
9f6bbf7c | 3326 | { |
4a6bb6d3 | 3327 | u32 in_pport_mask = 0xffffffff; |
9f6bbf7c SF |
3328 | __be16 vlan_id_mask = htons(0xffff); |
3329 | int err; | |
3330 | ||
3331 | if (ntohs(vlan_id) == 0) | |
3332 | vlan_id = rocker_port->internal_vlan_id; | |
3333 | ||
c4f20321 | 3334 | err = rocker_flow_tbl_term_mac(rocker_port, trans, |
4a6bb6d3 | 3335 | rocker_port->pport, in_pport_mask, |
9f6bbf7c SF |
3336 | ctrl->eth_type, ctrl->eth_dst, |
3337 | ctrl->eth_dst_mask, vlan_id, | |
3338 | vlan_id_mask, ctrl->copy_to_cpu, | |
3339 | flags); | |
3340 | ||
3341 | if (err) | |
3342 | netdev_err(rocker_port->dev, "Error (%d) ctrl term\n", err); | |
3343 | ||
3344 | return err; | |
3345 | } | |
3346 | ||
c4f20321 SF |
3347 | static int rocker_port_ctrl_vlan(struct rocker_port *rocker_port, |
3348 | enum switchdev_trans trans, int flags, | |
9f6bbf7c SF |
3349 | struct rocker_ctrl *ctrl, __be16 vlan_id) |
3350 | { | |
3351 | if (ctrl->acl) | |
c4f20321 | 3352 | return rocker_port_ctrl_vlan_acl(rocker_port, trans, flags, |
9f6bbf7c | 3353 | ctrl, vlan_id); |
6c707945 | 3354 | if (ctrl->bridge) |
c4f20321 | 3355 | return rocker_port_ctrl_vlan_bridge(rocker_port, trans, flags, |
6c707945 | 3356 | ctrl, vlan_id); |
9f6bbf7c SF |
3357 | |
3358 | if (ctrl->term) | |
c4f20321 | 3359 | return rocker_port_ctrl_vlan_term(rocker_port, trans, flags, |
9f6bbf7c SF |
3360 | ctrl, vlan_id); |
3361 | ||
3362 | return -EOPNOTSUPP; | |
3363 | } | |
3364 | ||
3365 | static int rocker_port_ctrl_vlan_add(struct rocker_port *rocker_port, | |
c4f20321 SF |
3366 | enum switchdev_trans trans, int flags, |
3367 | __be16 vlan_id) | |
9f6bbf7c SF |
3368 | { |
3369 | int err = 0; | |
3370 | int i; | |
3371 | ||
3372 | for (i = 0; i < ROCKER_CTRL_MAX; i++) { | |
3373 | if (rocker_port->ctrls[i]) { | |
c4f20321 | 3374 | err = rocker_port_ctrl_vlan(rocker_port, trans, flags, |
9f6bbf7c SF |
3375 | &rocker_ctrls[i], vlan_id); |
3376 | if (err) | |
3377 | return err; | |
3378 | } | |
3379 | } | |
3380 | ||
3381 | return err; | |
3382 | } | |
3383 | ||
c4f20321 SF |
3384 | static int rocker_port_ctrl(struct rocker_port *rocker_port, |
3385 | enum switchdev_trans trans, int flags, | |
9f6bbf7c SF |
3386 | struct rocker_ctrl *ctrl) |
3387 | { | |
3388 | u16 vid; | |
3389 | int err = 0; | |
3390 | ||
3391 | for (vid = 1; vid < VLAN_N_VID; vid++) { | |
3392 | if (!test_bit(vid, rocker_port->vlan_bitmap)) | |
3393 | continue; | |
c4f20321 | 3394 | err = rocker_port_ctrl_vlan(rocker_port, trans, flags, |
9f6bbf7c SF |
3395 | ctrl, htons(vid)); |
3396 | if (err) | |
3397 | break; | |
3398 | } | |
3399 | ||
3400 | return err; | |
3401 | } | |
3402 | ||
c4f20321 SF |
3403 | static int rocker_port_vlan(struct rocker_port *rocker_port, |
3404 | enum switchdev_trans trans, int flags, u16 vid) | |
6c707945 SF |
3405 | { |
3406 | enum rocker_of_dpa_table_id goto_tbl = | |
3407 | ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC; | |
4a6bb6d3 | 3408 | u32 in_pport = rocker_port->pport; |
6c707945 SF |
3409 | __be16 vlan_id = htons(vid); |
3410 | __be16 vlan_id_mask = htons(0xffff); | |
3411 | __be16 internal_vlan_id; | |
3412 | bool untagged; | |
3413 | bool adding = !(flags & ROCKER_OP_FLAG_REMOVE); | |
3414 | int err; | |
3415 | ||
3416 | internal_vlan_id = rocker_port_vid_to_vlan(rocker_port, vid, &untagged); | |
3417 | ||
9228ad26 SF |
3418 | if (adding && test_bit(ntohs(internal_vlan_id), |
3419 | rocker_port->vlan_bitmap)) | |
6c707945 | 3420 | return 0; /* already added */ |
9228ad26 SF |
3421 | else if (!adding && !test_bit(ntohs(internal_vlan_id), |
3422 | rocker_port->vlan_bitmap)) | |
6c707945 SF |
3423 | return 0; /* already removed */ |
3424 | ||
9228ad26 SF |
3425 | change_bit(ntohs(internal_vlan_id), rocker_port->vlan_bitmap); |
3426 | ||
6c707945 | 3427 | if (adding) { |
c4f20321 | 3428 | err = rocker_port_ctrl_vlan_add(rocker_port, trans, flags, |
6c707945 SF |
3429 | internal_vlan_id); |
3430 | if (err) { | |
3431 | netdev_err(rocker_port->dev, | |
3432 | "Error (%d) port ctrl vlan add\n", err); | |
9228ad26 | 3433 | goto err_out; |
6c707945 SF |
3434 | } |
3435 | } | |
3436 | ||
c4f20321 | 3437 | err = rocker_port_vlan_l2_groups(rocker_port, trans, flags, |
6c707945 SF |
3438 | internal_vlan_id, untagged); |
3439 | if (err) { | |
3440 | netdev_err(rocker_port->dev, | |
3441 | "Error (%d) port VLAN l2 groups\n", err); | |
9228ad26 | 3442 | goto err_out; |
6c707945 SF |
3443 | } |
3444 | ||
c4f20321 | 3445 | err = rocker_port_vlan_flood_group(rocker_port, trans, flags, |
6c707945 SF |
3446 | internal_vlan_id); |
3447 | if (err) { | |
3448 | netdev_err(rocker_port->dev, | |
3449 | "Error (%d) port VLAN l2 flood group\n", err); | |
9228ad26 | 3450 | goto err_out; |
6c707945 SF |
3451 | } |
3452 | ||
c4f20321 | 3453 | err = rocker_flow_tbl_vlan(rocker_port, trans, flags, |
4a6bb6d3 | 3454 | in_pport, vlan_id, vlan_id_mask, |
6c707945 SF |
3455 | goto_tbl, untagged, internal_vlan_id); |
3456 | if (err) | |
3457 | netdev_err(rocker_port->dev, | |
3458 | "Error (%d) port VLAN table\n", err); | |
3459 | ||
9228ad26 SF |
3460 | err_out: |
3461 | if (trans == SWITCHDEV_TRANS_PREPARE) | |
3462 | change_bit(ntohs(internal_vlan_id), rocker_port->vlan_bitmap); | |
3463 | ||
6c707945 SF |
3464 | return err; |
3465 | } | |
3466 | ||
c4f20321 SF |
3467 | static int rocker_port_ig_tbl(struct rocker_port *rocker_port, |
3468 | enum switchdev_trans trans, int flags) | |
9f6bbf7c SF |
3469 | { |
3470 | enum rocker_of_dpa_table_id goto_tbl; | |
4a6bb6d3 SF |
3471 | u32 in_pport; |
3472 | u32 in_pport_mask; | |
9f6bbf7c SF |
3473 | int err; |
3474 | ||
3475 | /* Normal Ethernet Frames. Matches pkts from any local physical | |
3476 | * ports. Goto VLAN tbl. | |
3477 | */ | |
3478 | ||
4a6bb6d3 SF |
3479 | in_pport = 0; |
3480 | in_pport_mask = 0xffff0000; | |
9f6bbf7c SF |
3481 | goto_tbl = ROCKER_OF_DPA_TABLE_ID_VLAN; |
3482 | ||
c4f20321 | 3483 | err = rocker_flow_tbl_ig_port(rocker_port, trans, flags, |
4a6bb6d3 | 3484 | in_pport, in_pport_mask, |
9f6bbf7c SF |
3485 | goto_tbl); |
3486 | if (err) | |
3487 | netdev_err(rocker_port->dev, | |
3488 | "Error (%d) ingress port table entry\n", err); | |
3489 | ||
3490 | return err; | |
3491 | } | |
3492 | ||
6c707945 SF |
3493 | struct rocker_fdb_learn_work { |
3494 | struct work_struct work; | |
c4f20321 SF |
3495 | struct rocker_port *rocker_port; |
3496 | enum switchdev_trans trans; | |
6c707945 SF |
3497 | int flags; |
3498 | u8 addr[ETH_ALEN]; | |
3499 | u16 vid; | |
3500 | }; | |
3501 | ||
3502 | static void rocker_port_fdb_learn_work(struct work_struct *work) | |
3503 | { | |
3504 | struct rocker_fdb_learn_work *lw = | |
3505 | container_of(work, struct rocker_fdb_learn_work, work); | |
3506 | bool removing = (lw->flags & ROCKER_OP_FLAG_REMOVE); | |
3507 | bool learned = (lw->flags & ROCKER_OP_FLAG_LEARNED); | |
ebb9a03a | 3508 | struct switchdev_notifier_fdb_info info; |
3aeb6617 JP |
3509 | |
3510 | info.addr = lw->addr; | |
3511 | info.vid = lw->vid; | |
6c707945 | 3512 | |
51ace887 | 3513 | if (learned && removing) |
ebb9a03a | 3514 | call_switchdev_notifiers(SWITCHDEV_FDB_DEL, |
c4f20321 | 3515 | lw->rocker_port->dev, &info.info); |
51ace887 | 3516 | else if (learned && !removing) |
ebb9a03a | 3517 | call_switchdev_notifiers(SWITCHDEV_FDB_ADD, |
c4f20321 | 3518 | lw->rocker_port->dev, &info.info); |
6c707945 | 3519 | |
c4f20321 | 3520 | rocker_port_kfree(lw->rocker_port, lw->trans, work); |
6c707945 SF |
3521 | } |
3522 | ||
3523 | static int rocker_port_fdb_learn(struct rocker_port *rocker_port, | |
c4f20321 SF |
3524 | enum switchdev_trans trans, int flags, |
3525 | const u8 *addr, __be16 vlan_id) | |
6c707945 SF |
3526 | { |
3527 | struct rocker_fdb_learn_work *lw; | |
3528 | enum rocker_of_dpa_table_id goto_tbl = | |
3529 | ROCKER_OF_DPA_TABLE_ID_ACL_POLICY; | |
4a6bb6d3 | 3530 | u32 out_pport = rocker_port->pport; |
6c707945 SF |
3531 | u32 tunnel_id = 0; |
3532 | u32 group_id = ROCKER_GROUP_NONE; | |
5111f80c | 3533 | bool syncing = !!(rocker_port->brport_flags & BR_LEARNING_SYNC); |
6c707945 SF |
3534 | bool copy_to_cpu = false; |
3535 | int err; | |
3536 | ||
3537 | if (rocker_port_is_bridged(rocker_port)) | |
4a6bb6d3 | 3538 | group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport); |
6c707945 SF |
3539 | |
3540 | if (!(flags & ROCKER_OP_FLAG_REFRESH)) { | |
c4f20321 SF |
3541 | err = rocker_flow_tbl_bridge(rocker_port, trans, flags, addr, |
3542 | NULL, vlan_id, tunnel_id, goto_tbl, | |
6c707945 SF |
3543 | group_id, copy_to_cpu); |
3544 | if (err) | |
3545 | return err; | |
3546 | } | |
3547 | ||
5111f80c SF |
3548 | if (!syncing) |
3549 | return 0; | |
3550 | ||
6c707945 SF |
3551 | if (!rocker_port_is_bridged(rocker_port)) |
3552 | return 0; | |
3553 | ||
c4f20321 | 3554 | lw = rocker_port_kzalloc(rocker_port, trans, sizeof(*lw)); |
6c707945 SF |
3555 | if (!lw) |
3556 | return -ENOMEM; | |
3557 | ||
3558 | INIT_WORK(&lw->work, rocker_port_fdb_learn_work); | |
3559 | ||
c4f20321 SF |
3560 | lw->rocker_port = rocker_port; |
3561 | lw->trans = trans; | |
6c707945 SF |
3562 | lw->flags = flags; |
3563 | ether_addr_copy(lw->addr, addr); | |
3564 | lw->vid = rocker_port_vlan_to_vid(rocker_port, vlan_id); | |
3565 | ||
c4f20321 SF |
3566 | if (trans == SWITCHDEV_TRANS_PREPARE) |
3567 | rocker_port_kfree(rocker_port, trans, lw); | |
3568 | else | |
3569 | schedule_work(&lw->work); | |
6c707945 SF |
3570 | |
3571 | return 0; | |
3572 | } | |
3573 | ||
3574 | static struct rocker_fdb_tbl_entry * | |
3575 | rocker_fdb_tbl_find(struct rocker *rocker, struct rocker_fdb_tbl_entry *match) | |
3576 | { | |
3577 | struct rocker_fdb_tbl_entry *found; | |
3578 | ||
3579 | hash_for_each_possible(rocker->fdb_tbl, found, entry, match->key_crc32) | |
3580 | if (memcmp(&found->key, &match->key, sizeof(found->key)) == 0) | |
3581 | return found; | |
3582 | ||
3583 | return NULL; | |
3584 | } | |
3585 | ||
3586 | static int rocker_port_fdb(struct rocker_port *rocker_port, | |
c4f20321 | 3587 | enum switchdev_trans trans, |
6c707945 SF |
3588 | const unsigned char *addr, |
3589 | __be16 vlan_id, int flags) | |
3590 | { | |
3591 | struct rocker *rocker = rocker_port->rocker; | |
3592 | struct rocker_fdb_tbl_entry *fdb; | |
3593 | struct rocker_fdb_tbl_entry *found; | |
3594 | bool removing = (flags & ROCKER_OP_FLAG_REMOVE); | |
3595 | unsigned long lock_flags; | |
3596 | ||
c4f20321 | 3597 | fdb = rocker_port_kzalloc(rocker_port, trans, sizeof(*fdb)); |
6c707945 SF |
3598 | if (!fdb) |
3599 | return -ENOMEM; | |
3600 | ||
3601 | fdb->learned = (flags & ROCKER_OP_FLAG_LEARNED); | |
4a6bb6d3 | 3602 | fdb->key.pport = rocker_port->pport; |
6c707945 SF |
3603 | ether_addr_copy(fdb->key.addr, addr); |
3604 | fdb->key.vlan_id = vlan_id; | |
3605 | fdb->key_crc32 = crc32(~0, &fdb->key, sizeof(fdb->key)); | |
3606 | ||
3607 | spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags); | |
3608 | ||
3609 | found = rocker_fdb_tbl_find(rocker, fdb); | |
3610 | ||
3611 | if (removing && found) { | |
c4f20321 | 3612 | rocker_port_kfree(rocker_port, trans, fdb); |
6c707945 SF |
3613 | hash_del(&found->entry); |
3614 | } else if (!removing && !found) { | |
3615 | hash_add(rocker->fdb_tbl, &fdb->entry, fdb->key_crc32); | |
3616 | } | |
3617 | ||
3618 | spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags); | |
3619 | ||
3620 | /* Check if adding and already exists, or removing and can't find */ | |
3621 | if (!found != !removing) { | |
c4f20321 | 3622 | rocker_port_kfree(rocker_port, trans, fdb); |
6c707945 SF |
3623 | if (!found && removing) |
3624 | return 0; | |
3625 | /* Refreshing existing to update aging timers */ | |
3626 | flags |= ROCKER_OP_FLAG_REFRESH; | |
3627 | } | |
3628 | ||
c4f20321 | 3629 | return rocker_port_fdb_learn(rocker_port, trans, flags, addr, vlan_id); |
6c707945 SF |
3630 | } |
3631 | ||
c4f20321 SF |
3632 | static int rocker_port_fdb_flush(struct rocker_port *rocker_port, |
3633 | enum switchdev_trans trans) | |
6c707945 SF |
3634 | { |
3635 | struct rocker *rocker = rocker_port->rocker; | |
3636 | struct rocker_fdb_tbl_entry *found; | |
3637 | unsigned long lock_flags; | |
c4f20321 | 3638 | int flags = ROCKER_OP_FLAG_REMOVE; |
6c707945 SF |
3639 | struct hlist_node *tmp; |
3640 | int bkt; | |
3641 | int err = 0; | |
3642 | ||
3643 | if (rocker_port->stp_state == BR_STATE_LEARNING || | |
3644 | rocker_port->stp_state == BR_STATE_FORWARDING) | |
3645 | return 0; | |
3646 | ||
3647 | spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags); | |
3648 | ||
3649 | hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, found, entry) { | |
4a6bb6d3 | 3650 | if (found->key.pport != rocker_port->pport) |
6c707945 SF |
3651 | continue; |
3652 | if (!found->learned) | |
3653 | continue; | |
c4f20321 | 3654 | err = rocker_port_fdb_learn(rocker_port, trans, flags, |
6c707945 SF |
3655 | found->key.addr, |
3656 | found->key.vlan_id); | |
3657 | if (err) | |
3658 | goto err_out; | |
3659 | hash_del(&found->entry); | |
3660 | } | |
3661 | ||
3662 | err_out: | |
3663 | spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags); | |
3664 | ||
3665 | return err; | |
3666 | } | |
3667 | ||
9f6bbf7c | 3668 | static int rocker_port_router_mac(struct rocker_port *rocker_port, |
c4f20321 SF |
3669 | enum switchdev_trans trans, int flags, |
3670 | __be16 vlan_id) | |
9f6bbf7c | 3671 | { |
4a6bb6d3 | 3672 | u32 in_pport_mask = 0xffffffff; |
9f6bbf7c SF |
3673 | __be16 eth_type; |
3674 | const u8 *dst_mac_mask = ff_mac; | |
3675 | __be16 vlan_id_mask = htons(0xffff); | |
3676 | bool copy_to_cpu = false; | |
3677 | int err; | |
3678 | ||
3679 | if (ntohs(vlan_id) == 0) | |
3680 | vlan_id = rocker_port->internal_vlan_id; | |
3681 | ||
3682 | eth_type = htons(ETH_P_IP); | |
c4f20321 | 3683 | err = rocker_flow_tbl_term_mac(rocker_port, trans, |
4a6bb6d3 | 3684 | rocker_port->pport, in_pport_mask, |
9f6bbf7c SF |
3685 | eth_type, rocker_port->dev->dev_addr, |
3686 | dst_mac_mask, vlan_id, vlan_id_mask, | |
3687 | copy_to_cpu, flags); | |
3688 | if (err) | |
3689 | return err; | |
3690 | ||
3691 | eth_type = htons(ETH_P_IPV6); | |
c4f20321 | 3692 | err = rocker_flow_tbl_term_mac(rocker_port, trans, |
4a6bb6d3 | 3693 | rocker_port->pport, in_pport_mask, |
9f6bbf7c SF |
3694 | eth_type, rocker_port->dev->dev_addr, |
3695 | dst_mac_mask, vlan_id, vlan_id_mask, | |
3696 | copy_to_cpu, flags); | |
3697 | ||
3698 | return err; | |
3699 | } | |
3700 | ||
c4f20321 SF |
3701 | static int rocker_port_fwding(struct rocker_port *rocker_port, |
3702 | enum switchdev_trans trans) | |
6c707945 SF |
3703 | { |
3704 | bool pop_vlan; | |
4a6bb6d3 | 3705 | u32 out_pport; |
6c707945 SF |
3706 | __be16 vlan_id; |
3707 | u16 vid; | |
c4f20321 | 3708 | int flags = 0; |
6c707945 SF |
3709 | int err; |
3710 | ||
3711 | /* Port will be forwarding-enabled if its STP state is LEARNING | |
3712 | * or FORWARDING. Traffic from CPU can still egress, regardless of | |
3713 | * port STP state. Use L2 interface group on port VLANs as a way | |
3714 | * to toggle port forwarding: if forwarding is disabled, L2 | |
3715 | * interface group will not exist. | |
3716 | */ | |
3717 | ||
3718 | if (rocker_port->stp_state != BR_STATE_LEARNING && | |
3719 | rocker_port->stp_state != BR_STATE_FORWARDING) | |
3720 | flags |= ROCKER_OP_FLAG_REMOVE; | |
3721 | ||
4a6bb6d3 | 3722 | out_pport = rocker_port->pport; |
6c707945 SF |
3723 | for (vid = 1; vid < VLAN_N_VID; vid++) { |
3724 | if (!test_bit(vid, rocker_port->vlan_bitmap)) | |
3725 | continue; | |
3726 | vlan_id = htons(vid); | |
3727 | pop_vlan = rocker_vlan_id_is_internal(vlan_id); | |
c4f20321 SF |
3728 | err = rocker_group_l2_interface(rocker_port, trans, flags, |
3729 | vlan_id, out_pport, pop_vlan); | |
6c707945 SF |
3730 | if (err) { |
3731 | netdev_err(rocker_port->dev, | |
4a6bb6d3 SF |
3732 | "Error (%d) port VLAN l2 group for pport %d\n", |
3733 | err, out_pport); | |
6c707945 SF |
3734 | return err; |
3735 | } | |
3736 | } | |
3737 | ||
3738 | return 0; | |
3739 | } | |
3740 | ||
c4f20321 SF |
3741 | static int rocker_port_stp_update(struct rocker_port *rocker_port, |
3742 | enum switchdev_trans trans, u8 state) | |
6c707945 SF |
3743 | { |
3744 | bool want[ROCKER_CTRL_MAX] = { 0, }; | |
c4f20321 SF |
3745 | bool prev_ctrls[ROCKER_CTRL_MAX]; |
3746 | u8 prev_state; | |
6c707945 SF |
3747 | int flags; |
3748 | int err; | |
3749 | int i; | |
3750 | ||
c4f20321 SF |
3751 | if (trans == SWITCHDEV_TRANS_PREPARE) { |
3752 | memcpy(prev_ctrls, rocker_port->ctrls, sizeof(prev_ctrls)); | |
3753 | prev_state = rocker_port->stp_state; | |
3754 | } | |
3755 | ||
6c707945 SF |
3756 | if (rocker_port->stp_state == state) |
3757 | return 0; | |
3758 | ||
3759 | rocker_port->stp_state = state; | |
3760 | ||
3761 | switch (state) { | |
3762 | case BR_STATE_DISABLED: | |
3763 | /* port is completely disabled */ | |
3764 | break; | |
3765 | case BR_STATE_LISTENING: | |
3766 | case BR_STATE_BLOCKING: | |
3767 | want[ROCKER_CTRL_LINK_LOCAL_MCAST] = true; | |
3768 | break; | |
3769 | case BR_STATE_LEARNING: | |
3770 | case BR_STATE_FORWARDING: | |
3771 | want[ROCKER_CTRL_LINK_LOCAL_MCAST] = true; | |
3772 | want[ROCKER_CTRL_IPV4_MCAST] = true; | |
3773 | want[ROCKER_CTRL_IPV6_MCAST] = true; | |
3774 | if (rocker_port_is_bridged(rocker_port)) | |
3775 | want[ROCKER_CTRL_DFLT_BRIDGING] = true; | |
3776 | else | |
3777 | want[ROCKER_CTRL_LOCAL_ARP] = true; | |
3778 | break; | |
3779 | } | |
3780 | ||
3781 | for (i = 0; i < ROCKER_CTRL_MAX; i++) { | |
3782 | if (want[i] != rocker_port->ctrls[i]) { | |
c4f20321 SF |
3783 | flags = (want[i] ? 0 : ROCKER_OP_FLAG_REMOVE); |
3784 | err = rocker_port_ctrl(rocker_port, trans, flags, | |
6c707945 SF |
3785 | &rocker_ctrls[i]); |
3786 | if (err) | |
c4f20321 | 3787 | goto err_out; |
6c707945 SF |
3788 | rocker_port->ctrls[i] = want[i]; |
3789 | } | |
3790 | } | |
3791 | ||
c4f20321 | 3792 | err = rocker_port_fdb_flush(rocker_port, trans); |
6c707945 | 3793 | if (err) |
c4f20321 | 3794 | goto err_out; |
6c707945 | 3795 | |
c4f20321 SF |
3796 | err = rocker_port_fwding(rocker_port, trans); |
3797 | ||
3798 | err_out: | |
3799 | if (trans == SWITCHDEV_TRANS_PREPARE) { | |
3800 | memcpy(rocker_port->ctrls, prev_ctrls, sizeof(prev_ctrls)); | |
3801 | rocker_port->stp_state = prev_state; | |
3802 | } | |
3803 | ||
3804 | return err; | |
6c707945 SF |
3805 | } |
3806 | ||
c4f20321 SF |
3807 | static int rocker_port_fwd_enable(struct rocker_port *rocker_port, |
3808 | enum switchdev_trans trans) | |
e47172ab SF |
3809 | { |
3810 | if (rocker_port_is_bridged(rocker_port)) | |
3811 | /* bridge STP will enable port */ | |
3812 | return 0; | |
3813 | ||
3814 | /* port is not bridged, so simulate going to FORWARDING state */ | |
c4f20321 | 3815 | return rocker_port_stp_update(rocker_port, trans, BR_STATE_FORWARDING); |
e47172ab SF |
3816 | } |
3817 | ||
c4f20321 SF |
3818 | static int rocker_port_fwd_disable(struct rocker_port *rocker_port, |
3819 | enum switchdev_trans trans) | |
e47172ab SF |
3820 | { |
3821 | if (rocker_port_is_bridged(rocker_port)) | |
3822 | /* bridge STP will disable port */ | |
3823 | return 0; | |
3824 | ||
3825 | /* port is not bridged, so simulate going to DISABLED state */ | |
c4f20321 | 3826 | return rocker_port_stp_update(rocker_port, trans, BR_STATE_DISABLED); |
e47172ab SF |
3827 | } |
3828 | ||
9f6bbf7c SF |
3829 | static struct rocker_internal_vlan_tbl_entry * |
3830 | rocker_internal_vlan_tbl_find(struct rocker *rocker, int ifindex) | |
3831 | { | |
3832 | struct rocker_internal_vlan_tbl_entry *found; | |
3833 | ||
3834 | hash_for_each_possible(rocker->internal_vlan_tbl, found, | |
3835 | entry, ifindex) { | |
3836 | if (found->ifindex == ifindex) | |
3837 | return found; | |
3838 | } | |
3839 | ||
3840 | return NULL; | |
3841 | } | |
3842 | ||
3843 | static __be16 rocker_port_internal_vlan_id_get(struct rocker_port *rocker_port, | |
c4f20321 | 3844 | enum switchdev_trans trans, |
9f6bbf7c SF |
3845 | int ifindex) |
3846 | { | |
3847 | struct rocker *rocker = rocker_port->rocker; | |
3848 | struct rocker_internal_vlan_tbl_entry *entry; | |
3849 | struct rocker_internal_vlan_tbl_entry *found; | |
3850 | unsigned long lock_flags; | |
3851 | int i; | |
3852 | ||
c4f20321 | 3853 | entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry)); |
9f6bbf7c SF |
3854 | if (!entry) |
3855 | return 0; | |
3856 | ||
3857 | entry->ifindex = ifindex; | |
3858 | ||
3859 | spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, lock_flags); | |
3860 | ||
3861 | found = rocker_internal_vlan_tbl_find(rocker, ifindex); | |
3862 | if (found) { | |
c4f20321 | 3863 | rocker_port_kfree(rocker_port, trans, entry); |
9f6bbf7c SF |
3864 | goto found; |
3865 | } | |
3866 | ||
3867 | found = entry; | |
3868 | hash_add(rocker->internal_vlan_tbl, &found->entry, found->ifindex); | |
3869 | ||
3870 | for (i = 0; i < ROCKER_N_INTERNAL_VLANS; i++) { | |
3871 | if (test_and_set_bit(i, rocker->internal_vlan_bitmap)) | |
3872 | continue; | |
3873 | found->vlan_id = htons(ROCKER_INTERNAL_VLAN_ID_BASE + i); | |
3874 | goto found; | |
3875 | } | |
3876 | ||
3877 | netdev_err(rocker_port->dev, "Out of internal VLAN IDs\n"); | |
3878 | ||
3879 | found: | |
3880 | found->ref_count++; | |
3881 | spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, lock_flags); | |
3882 | ||
3883 | return found->vlan_id; | |
3884 | } | |
3885 | ||
3886 | static void rocker_port_internal_vlan_id_put(struct rocker_port *rocker_port, | |
c4f20321 | 3887 | enum switchdev_trans trans, |
9f6bbf7c SF |
3888 | int ifindex) |
3889 | { | |
3890 | struct rocker *rocker = rocker_port->rocker; | |
3891 | struct rocker_internal_vlan_tbl_entry *found; | |
3892 | unsigned long lock_flags; | |
3893 | unsigned long bit; | |
3894 | ||
3895 | spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, lock_flags); | |
3896 | ||
3897 | found = rocker_internal_vlan_tbl_find(rocker, ifindex); | |
3898 | if (!found) { | |
3899 | netdev_err(rocker_port->dev, | |
3900 | "ifindex (%d) not found in internal VLAN tbl\n", | |
3901 | ifindex); | |
3902 | goto not_found; | |
3903 | } | |
3904 | ||
3905 | if (--found->ref_count <= 0) { | |
3906 | bit = ntohs(found->vlan_id) - ROCKER_INTERNAL_VLAN_ID_BASE; | |
3907 | clear_bit(bit, rocker->internal_vlan_bitmap); | |
3908 | hash_del(&found->entry); | |
c4f20321 | 3909 | rocker_port_kfree(rocker_port, trans, found); |
9f6bbf7c SF |
3910 | } |
3911 | ||
3912 | not_found: | |
3913 | spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, lock_flags); | |
3914 | } | |
3915 | ||
c4f20321 SF |
3916 | static int rocker_port_fib_ipv4(struct rocker_port *rocker_port, |
3917 | enum switchdev_trans trans, __be32 dst, | |
c1beeef7 SF |
3918 | int dst_len, struct fib_info *fi, u32 tb_id, |
3919 | int flags) | |
3920 | { | |
3921 | struct fib_nh *nh; | |
3922 | __be16 eth_type = htons(ETH_P_IP); | |
3923 | __be32 dst_mask = inet_make_mask(dst_len); | |
3924 | __be16 internal_vlan_id = rocker_port->internal_vlan_id; | |
3925 | u32 priority = fi->fib_priority; | |
3926 | enum rocker_of_dpa_table_id goto_tbl = | |
3927 | ROCKER_OF_DPA_TABLE_ID_ACL_POLICY; | |
3928 | u32 group_id; | |
3929 | bool nh_on_port; | |
3930 | bool has_gw; | |
3931 | u32 index; | |
3932 | int err; | |
3933 | ||
3934 | /* XXX support ECMP */ | |
3935 | ||
3936 | nh = fi->fib_nh; | |
3937 | nh_on_port = (fi->fib_dev == rocker_port->dev); | |
3938 | has_gw = !!nh->nh_gw; | |
3939 | ||
3940 | if (has_gw && nh_on_port) { | |
c4f20321 | 3941 | err = rocker_port_ipv4_nh(rocker_port, trans, flags, |
c1beeef7 SF |
3942 | nh->nh_gw, &index); |
3943 | if (err) | |
3944 | return err; | |
3945 | ||
3946 | group_id = ROCKER_GROUP_L3_UNICAST(index); | |
3947 | } else { | |
3948 | /* Send to CPU for processing */ | |
3949 | group_id = ROCKER_GROUP_L2_INTERFACE(internal_vlan_id, 0); | |
3950 | } | |
3951 | ||
c4f20321 | 3952 | err = rocker_flow_tbl_ucast4_routing(rocker_port, trans, eth_type, dst, |
c1beeef7 SF |
3953 | dst_mask, priority, goto_tbl, |
3954 | group_id, flags); | |
3955 | if (err) | |
3956 | netdev_err(rocker_port->dev, "Error (%d) IPv4 route %pI4\n", | |
3957 | err, &dst); | |
3958 | ||
3959 | return err; | |
3960 | } | |
3961 | ||
4b8ac966 JP |
3962 | /***************** |
3963 | * Net device ops | |
3964 | *****************/ | |
3965 | ||
3966 | static int rocker_port_open(struct net_device *dev) | |
3967 | { | |
3968 | struct rocker_port *rocker_port = netdev_priv(dev); | |
3969 | int err; | |
3970 | ||
3971 | err = rocker_port_dma_rings_init(rocker_port); | |
3972 | if (err) | |
3973 | return err; | |
3974 | ||
3975 | err = request_irq(rocker_msix_tx_vector(rocker_port), | |
3976 | rocker_tx_irq_handler, 0, | |
3977 | rocker_driver_name, rocker_port); | |
3978 | if (err) { | |
3979 | netdev_err(rocker_port->dev, "cannot assign tx irq\n"); | |
3980 | goto err_request_tx_irq; | |
3981 | } | |
3982 | ||
3983 | err = request_irq(rocker_msix_rx_vector(rocker_port), | |
3984 | rocker_rx_irq_handler, 0, | |
3985 | rocker_driver_name, rocker_port); | |
3986 | if (err) { | |
3987 | netdev_err(rocker_port->dev, "cannot assign rx irq\n"); | |
3988 | goto err_request_rx_irq; | |
3989 | } | |
3990 | ||
c4f20321 | 3991 | err = rocker_port_fwd_enable(rocker_port, SWITCHDEV_TRANS_NONE); |
6c707945 | 3992 | if (err) |
e47172ab | 3993 | goto err_fwd_enable; |
6c707945 | 3994 | |
4b8ac966 JP |
3995 | napi_enable(&rocker_port->napi_tx); |
3996 | napi_enable(&rocker_port->napi_rx); | |
3997 | rocker_port_set_enable(rocker_port, true); | |
3998 | netif_start_queue(dev); | |
3999 | return 0; | |
4000 | ||
e47172ab | 4001 | err_fwd_enable: |
6c707945 | 4002 | free_irq(rocker_msix_rx_vector(rocker_port), rocker_port); |
4b8ac966 JP |
4003 | err_request_rx_irq: |
4004 | free_irq(rocker_msix_tx_vector(rocker_port), rocker_port); | |
4005 | err_request_tx_irq: | |
4006 | rocker_port_dma_rings_fini(rocker_port); | |
4007 | return err; | |
4008 | } | |
4009 | ||
4010 | static int rocker_port_stop(struct net_device *dev) | |
4011 | { | |
4012 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4013 | ||
4014 | netif_stop_queue(dev); | |
4015 | rocker_port_set_enable(rocker_port, false); | |
4016 | napi_disable(&rocker_port->napi_rx); | |
4017 | napi_disable(&rocker_port->napi_tx); | |
c4f20321 | 4018 | rocker_port_fwd_disable(rocker_port, SWITCHDEV_TRANS_NONE); |
4b8ac966 JP |
4019 | free_irq(rocker_msix_rx_vector(rocker_port), rocker_port); |
4020 | free_irq(rocker_msix_tx_vector(rocker_port), rocker_port); | |
4021 | rocker_port_dma_rings_fini(rocker_port); | |
4022 | ||
4023 | return 0; | |
4024 | } | |
4025 | ||
4026 | static void rocker_tx_desc_frags_unmap(struct rocker_port *rocker_port, | |
4027 | struct rocker_desc_info *desc_info) | |
4028 | { | |
4029 | struct rocker *rocker = rocker_port->rocker; | |
4030 | struct pci_dev *pdev = rocker->pdev; | |
4031 | struct rocker_tlv *attrs[ROCKER_TLV_TX_MAX + 1]; | |
4032 | struct rocker_tlv *attr; | |
4033 | int rem; | |
4034 | ||
4035 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_TX_MAX, desc_info); | |
4036 | if (!attrs[ROCKER_TLV_TX_FRAGS]) | |
4037 | return; | |
4038 | rocker_tlv_for_each_nested(attr, attrs[ROCKER_TLV_TX_FRAGS], rem) { | |
4039 | struct rocker_tlv *frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_MAX + 1]; | |
4040 | dma_addr_t dma_handle; | |
4041 | size_t len; | |
4042 | ||
4043 | if (rocker_tlv_type(attr) != ROCKER_TLV_TX_FRAG) | |
4044 | continue; | |
4045 | rocker_tlv_parse_nested(frag_attrs, ROCKER_TLV_TX_FRAG_ATTR_MAX, | |
4046 | attr); | |
4047 | if (!frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_ADDR] || | |
4048 | !frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_LEN]) | |
4049 | continue; | |
4050 | dma_handle = rocker_tlv_get_u64(frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_ADDR]); | |
4051 | len = rocker_tlv_get_u16(frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_LEN]); | |
4052 | pci_unmap_single(pdev, dma_handle, len, DMA_TO_DEVICE); | |
4053 | } | |
4054 | } | |
4055 | ||
4056 | static int rocker_tx_desc_frag_map_put(struct rocker_port *rocker_port, | |
4057 | struct rocker_desc_info *desc_info, | |
4058 | char *buf, size_t buf_len) | |
4059 | { | |
4060 | struct rocker *rocker = rocker_port->rocker; | |
4061 | struct pci_dev *pdev = rocker->pdev; | |
4062 | dma_addr_t dma_handle; | |
4063 | struct rocker_tlv *frag; | |
4064 | ||
4065 | dma_handle = pci_map_single(pdev, buf, buf_len, DMA_TO_DEVICE); | |
4066 | if (unlikely(pci_dma_mapping_error(pdev, dma_handle))) { | |
4067 | if (net_ratelimit()) | |
4068 | netdev_err(rocker_port->dev, "failed to dma map tx frag\n"); | |
4069 | return -EIO; | |
4070 | } | |
4071 | frag = rocker_tlv_nest_start(desc_info, ROCKER_TLV_TX_FRAG); | |
4072 | if (!frag) | |
4073 | goto unmap_frag; | |
4074 | if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_TX_FRAG_ATTR_ADDR, | |
4075 | dma_handle)) | |
4076 | goto nest_cancel; | |
4077 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_TX_FRAG_ATTR_LEN, | |
4078 | buf_len)) | |
4079 | goto nest_cancel; | |
4080 | rocker_tlv_nest_end(desc_info, frag); | |
4081 | return 0; | |
4082 | ||
4083 | nest_cancel: | |
4084 | rocker_tlv_nest_cancel(desc_info, frag); | |
4085 | unmap_frag: | |
4086 | pci_unmap_single(pdev, dma_handle, buf_len, DMA_TO_DEVICE); | |
4087 | return -EMSGSIZE; | |
4088 | } | |
4089 | ||
4090 | static netdev_tx_t rocker_port_xmit(struct sk_buff *skb, struct net_device *dev) | |
4091 | { | |
4092 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4093 | struct rocker *rocker = rocker_port->rocker; | |
4094 | struct rocker_desc_info *desc_info; | |
4095 | struct rocker_tlv *frags; | |
4096 | int i; | |
4097 | int err; | |
4098 | ||
4099 | desc_info = rocker_desc_head_get(&rocker_port->tx_ring); | |
4100 | if (unlikely(!desc_info)) { | |
4101 | if (net_ratelimit()) | |
4102 | netdev_err(dev, "tx ring full when queue awake\n"); | |
4103 | return NETDEV_TX_BUSY; | |
4104 | } | |
4105 | ||
4106 | rocker_desc_cookie_ptr_set(desc_info, skb); | |
4107 | ||
4108 | frags = rocker_tlv_nest_start(desc_info, ROCKER_TLV_TX_FRAGS); | |
4109 | if (!frags) | |
4110 | goto out; | |
4111 | err = rocker_tx_desc_frag_map_put(rocker_port, desc_info, | |
4112 | skb->data, skb_headlen(skb)); | |
4113 | if (err) | |
4114 | goto nest_cancel; | |
4115 | if (skb_shinfo(skb)->nr_frags > ROCKER_TX_FRAGS_MAX) | |
4116 | goto nest_cancel; | |
4117 | ||
4118 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { | |
4119 | const skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
4120 | ||
4121 | err = rocker_tx_desc_frag_map_put(rocker_port, desc_info, | |
4122 | skb_frag_address(frag), | |
4123 | skb_frag_size(frag)); | |
4124 | if (err) | |
4125 | goto unmap_frags; | |
4126 | } | |
4127 | rocker_tlv_nest_end(desc_info, frags); | |
4128 | ||
4129 | rocker_desc_gen_clear(desc_info); | |
4130 | rocker_desc_head_set(rocker, &rocker_port->tx_ring, desc_info); | |
4131 | ||
4132 | desc_info = rocker_desc_head_get(&rocker_port->tx_ring); | |
4133 | if (!desc_info) | |
4134 | netif_stop_queue(dev); | |
4135 | ||
4136 | return NETDEV_TX_OK; | |
4137 | ||
4138 | unmap_frags: | |
4139 | rocker_tx_desc_frags_unmap(rocker_port, desc_info); | |
4140 | nest_cancel: | |
4141 | rocker_tlv_nest_cancel(desc_info, frags); | |
4142 | out: | |
4143 | dev_kfree_skb(skb); | |
f2bbca51 DA |
4144 | dev->stats.tx_dropped++; |
4145 | ||
4b8ac966 JP |
4146 | return NETDEV_TX_OK; |
4147 | } | |
4148 | ||
4149 | static int rocker_port_set_mac_address(struct net_device *dev, void *p) | |
4150 | { | |
4151 | struct sockaddr *addr = p; | |
4152 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4153 | int err; | |
4154 | ||
4155 | if (!is_valid_ether_addr(addr->sa_data)) | |
4156 | return -EADDRNOTAVAIL; | |
4157 | ||
4158 | err = rocker_cmd_set_port_settings_macaddr(rocker_port, addr->sa_data); | |
4159 | if (err) | |
4160 | return err; | |
4161 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); | |
4162 | return 0; | |
4163 | } | |
4164 | ||
6c707945 SF |
4165 | static int rocker_port_vlan_rx_add_vid(struct net_device *dev, |
4166 | __be16 proto, u16 vid) | |
4167 | { | |
4168 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4169 | int err; | |
4170 | ||
c4f20321 | 4171 | err = rocker_port_vlan(rocker_port, SWITCHDEV_TRANS_NONE, 0, vid); |
6c707945 SF |
4172 | if (err) |
4173 | return err; | |
4174 | ||
c4f20321 SF |
4175 | return rocker_port_router_mac(rocker_port, SWITCHDEV_TRANS_NONE, |
4176 | 0, htons(vid)); | |
6c707945 SF |
4177 | } |
4178 | ||
4179 | static int rocker_port_vlan_rx_kill_vid(struct net_device *dev, | |
4180 | __be16 proto, u16 vid) | |
4181 | { | |
4182 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4183 | int err; | |
4184 | ||
c4f20321 SF |
4185 | err = rocker_port_router_mac(rocker_port, SWITCHDEV_TRANS_NONE, |
4186 | ROCKER_OP_FLAG_REMOVE, htons(vid)); | |
6c707945 SF |
4187 | if (err) |
4188 | return err; | |
4189 | ||
c4f20321 SF |
4190 | return rocker_port_vlan(rocker_port, SWITCHDEV_TRANS_NONE, |
4191 | ROCKER_OP_FLAG_REMOVE, vid); | |
6c707945 SF |
4192 | } |
4193 | ||
4194 | static int rocker_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], | |
4195 | struct net_device *dev, | |
4196 | const unsigned char *addr, u16 vid, | |
4197 | u16 nlm_flags) | |
4198 | { | |
4199 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4200 | __be16 vlan_id = rocker_port_vid_to_vlan(rocker_port, vid, NULL); | |
4201 | int flags = 0; | |
4202 | ||
4203 | if (!rocker_port_is_bridged(rocker_port)) | |
4204 | return -EINVAL; | |
4205 | ||
c4f20321 SF |
4206 | return rocker_port_fdb(rocker_port, SWITCHDEV_TRANS_NONE, |
4207 | addr, vlan_id, flags); | |
6c707945 SF |
4208 | } |
4209 | ||
4210 | static int rocker_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[], | |
4211 | struct net_device *dev, | |
4212 | const unsigned char *addr, u16 vid) | |
4213 | { | |
4214 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4215 | __be16 vlan_id = rocker_port_vid_to_vlan(rocker_port, vid, NULL); | |
4216 | int flags = ROCKER_OP_FLAG_REMOVE; | |
4217 | ||
4218 | if (!rocker_port_is_bridged(rocker_port)) | |
4219 | return -EINVAL; | |
4220 | ||
c4f20321 SF |
4221 | return rocker_port_fdb(rocker_port, SWITCHDEV_TRANS_NONE, |
4222 | addr, vlan_id, flags); | |
6c707945 SF |
4223 | } |
4224 | ||
ce76ca68 JP |
4225 | static int rocker_fdb_fill_info(struct sk_buff *skb, |
4226 | struct rocker_port *rocker_port, | |
4227 | const unsigned char *addr, u16 vid, | |
4228 | u32 portid, u32 seq, int type, | |
4229 | unsigned int flags) | |
4230 | { | |
4231 | struct nlmsghdr *nlh; | |
4232 | struct ndmsg *ndm; | |
4233 | ||
4234 | nlh = nlmsg_put(skb, portid, seq, type, sizeof(*ndm), flags); | |
4235 | if (!nlh) | |
4236 | return -EMSGSIZE; | |
4237 | ||
4238 | ndm = nlmsg_data(nlh); | |
4239 | ndm->ndm_family = AF_BRIDGE; | |
4240 | ndm->ndm_pad1 = 0; | |
4241 | ndm->ndm_pad2 = 0; | |
4242 | ndm->ndm_flags = NTF_SELF; | |
4243 | ndm->ndm_type = 0; | |
4244 | ndm->ndm_ifindex = rocker_port->dev->ifindex; | |
4245 | ndm->ndm_state = NUD_REACHABLE; | |
4246 | ||
4247 | if (nla_put(skb, NDA_LLADDR, ETH_ALEN, addr)) | |
4248 | goto nla_put_failure; | |
4249 | ||
4250 | if (vid && nla_put_u16(skb, NDA_VLAN, vid)) | |
4251 | goto nla_put_failure; | |
4252 | ||
053c095a JB |
4253 | nlmsg_end(skb, nlh); |
4254 | return 0; | |
ce76ca68 JP |
4255 | |
4256 | nla_put_failure: | |
4257 | nlmsg_cancel(skb, nlh); | |
4258 | return -EMSGSIZE; | |
4259 | } | |
4260 | ||
4261 | static int rocker_port_fdb_dump(struct sk_buff *skb, | |
4262 | struct netlink_callback *cb, | |
4263 | struct net_device *dev, | |
4264 | struct net_device *filter_dev, | |
4265 | int idx) | |
4266 | { | |
4267 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4268 | struct rocker *rocker = rocker_port->rocker; | |
4269 | struct rocker_fdb_tbl_entry *found; | |
4270 | struct hlist_node *tmp; | |
4271 | int bkt; | |
4272 | unsigned long lock_flags; | |
4273 | const unsigned char *addr; | |
4274 | u16 vid; | |
4275 | int err; | |
4276 | ||
4277 | spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags); | |
4278 | hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, found, entry) { | |
4a6bb6d3 | 4279 | if (found->key.pport != rocker_port->pport) |
ce76ca68 JP |
4280 | continue; |
4281 | if (idx < cb->args[0]) | |
4282 | goto skip; | |
4283 | addr = found->key.addr; | |
4284 | vid = rocker_port_vlan_to_vid(rocker_port, found->key.vlan_id); | |
4285 | err = rocker_fdb_fill_info(skb, rocker_port, addr, vid, | |
4286 | NETLINK_CB(cb->skb).portid, | |
4287 | cb->nlh->nlmsg_seq, | |
4288 | RTM_NEWNEIGH, NLM_F_MULTI); | |
4289 | if (err < 0) | |
4290 | break; | |
4291 | skip: | |
4292 | ++idx; | |
4293 | } | |
4294 | spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags); | |
4295 | return idx; | |
4296 | } | |
4297 | ||
db19170b DA |
4298 | static int rocker_port_get_phys_port_name(struct net_device *dev, |
4299 | char *buf, size_t len) | |
4300 | { | |
4301 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4302 | struct port_name name = { .buf = buf, .len = len }; | |
4303 | int err; | |
4304 | ||
4305 | err = rocker_cmd_exec(rocker_port->rocker, rocker_port, | |
c4f20321 | 4306 | SWITCHDEV_TRANS_NONE, |
db19170b DA |
4307 | rocker_cmd_get_port_settings_prep, NULL, |
4308 | rocker_cmd_get_port_settings_phys_name_proc, | |
c4f20321 | 4309 | &name); |
db19170b DA |
4310 | |
4311 | return err ? -EOPNOTSUPP : 0; | |
4312 | } | |
4313 | ||
98237d43 SF |
4314 | static const struct net_device_ops rocker_port_netdev_ops = { |
4315 | .ndo_open = rocker_port_open, | |
4316 | .ndo_stop = rocker_port_stop, | |
4317 | .ndo_start_xmit = rocker_port_xmit, | |
4318 | .ndo_set_mac_address = rocker_port_set_mac_address, | |
4319 | .ndo_vlan_rx_add_vid = rocker_port_vlan_rx_add_vid, | |
4320 | .ndo_vlan_rx_kill_vid = rocker_port_vlan_rx_kill_vid, | |
4321 | .ndo_fdb_add = rocker_port_fdb_add, | |
4322 | .ndo_fdb_del = rocker_port_fdb_del, | |
4323 | .ndo_fdb_dump = rocker_port_fdb_dump, | |
85fdb956 | 4324 | .ndo_bridge_getlink = switchdev_port_bridge_getlink, |
fc8f40d8 | 4325 | .ndo_bridge_setlink = switchdev_port_bridge_setlink, |
54ba5a0b | 4326 | .ndo_bridge_dellink = switchdev_port_bridge_dellink, |
db19170b | 4327 | .ndo_get_phys_port_name = rocker_port_get_phys_port_name, |
98237d43 SF |
4328 | }; |
4329 | ||
4330 | /******************** | |
4331 | * swdev interface | |
4332 | ********************/ | |
4333 | ||
f8e20a9f SF |
4334 | static int rocker_port_attr_get(struct net_device *dev, |
4335 | struct switchdev_attr *attr) | |
4b8ac966 JP |
4336 | { |
4337 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4338 | struct rocker *rocker = rocker_port->rocker; | |
4339 | ||
f8e20a9f SF |
4340 | switch (attr->id) { |
4341 | case SWITCHDEV_ATTR_PORT_PARENT_ID: | |
4342 | attr->ppid.id_len = sizeof(rocker->hw.id); | |
4343 | memcpy(&attr->ppid.id, &rocker->hw.id, attr->ppid.id_len); | |
4344 | break; | |
6004c867 SF |
4345 | case SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS: |
4346 | attr->brport_flags = rocker_port->brport_flags; | |
4347 | break; | |
f8e20a9f SF |
4348 | default: |
4349 | return -EOPNOTSUPP; | |
4350 | } | |
4351 | ||
4b8ac966 JP |
4352 | return 0; |
4353 | } | |
4354 | ||
c4f20321 SF |
4355 | static void rocker_port_trans_abort(struct rocker_port *rocker_port) |
4356 | { | |
4357 | struct list_head *mem, *tmp; | |
4358 | ||
4359 | list_for_each_safe(mem, tmp, &rocker_port->trans_mem) { | |
4360 | list_del(mem); | |
4361 | kfree(mem); | |
4362 | } | |
4363 | } | |
4364 | ||
6004c867 SF |
4365 | static int rocker_port_brport_flags_set(struct rocker_port *rocker_port, |
4366 | enum switchdev_trans trans, | |
4367 | unsigned long brport_flags) | |
4368 | { | |
4369 | unsigned long orig_flags; | |
4370 | int err = 0; | |
4371 | ||
4372 | orig_flags = rocker_port->brport_flags; | |
4373 | rocker_port->brport_flags = brport_flags; | |
4374 | if ((orig_flags ^ rocker_port->brport_flags) & BR_LEARNING) | |
4375 | err = rocker_port_set_learning(rocker_port, trans); | |
4376 | ||
4377 | if (trans == SWITCHDEV_TRANS_PREPARE) | |
4378 | rocker_port->brport_flags = orig_flags; | |
4379 | ||
4380 | return err; | |
4381 | } | |
4382 | ||
c4f20321 SF |
4383 | static int rocker_port_attr_set(struct net_device *dev, |
4384 | struct switchdev_attr *attr) | |
4385 | { | |
4386 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4387 | int err = 0; | |
4388 | ||
4389 | switch (attr->trans) { | |
4390 | case SWITCHDEV_TRANS_PREPARE: | |
4391 | BUG_ON(!list_empty(&rocker_port->trans_mem)); | |
4392 | break; | |
4393 | case SWITCHDEV_TRANS_ABORT: | |
4394 | rocker_port_trans_abort(rocker_port); | |
4395 | return 0; | |
4396 | default: | |
4397 | break; | |
4398 | } | |
4399 | ||
4400 | switch (attr->id) { | |
35636062 SF |
4401 | case SWITCHDEV_ATTR_PORT_STP_STATE: |
4402 | err = rocker_port_stp_update(rocker_port, attr->trans, | |
4403 | attr->stp_state); | |
4404 | break; | |
6004c867 SF |
4405 | case SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS: |
4406 | err = rocker_port_brport_flags_set(rocker_port, attr->trans, | |
4407 | attr->brport_flags); | |
4408 | break; | |
c4f20321 SF |
4409 | default: |
4410 | err = -EOPNOTSUPP; | |
4411 | break; | |
4412 | } | |
4413 | ||
4414 | return err; | |
6c707945 SF |
4415 | } |
4416 | ||
9228ad26 SF |
4417 | static int rocker_port_vlan_add(struct rocker_port *rocker_port, |
4418 | enum switchdev_trans trans, u16 vid, u16 flags) | |
4419 | { | |
4420 | int err; | |
4421 | ||
4422 | /* XXX deal with flags for PVID and untagged */ | |
4423 | ||
4424 | err = rocker_port_vlan(rocker_port, trans, 0, vid); | |
4425 | if (err) | |
4426 | return err; | |
4427 | ||
4428 | return rocker_port_router_mac(rocker_port, trans, 0, htons(vid)); | |
4429 | } | |
4430 | ||
4431 | static int rocker_port_vlans_add(struct rocker_port *rocker_port, | |
4432 | enum switchdev_trans trans, | |
4433 | struct switchdev_obj_vlan *vlan) | |
4434 | { | |
4435 | u16 vid; | |
4436 | int err; | |
4437 | ||
4438 | for (vid = vlan->vid_start; vid <= vlan->vid_end; vid++) { | |
4439 | err = rocker_port_vlan_add(rocker_port, trans, | |
4440 | vid, vlan->flags); | |
4441 | if (err) | |
4442 | return err; | |
4443 | } | |
4444 | ||
4445 | return 0; | |
4446 | } | |
4447 | ||
4448 | static int rocker_port_obj_add(struct net_device *dev, | |
4449 | struct switchdev_obj *obj) | |
4450 | { | |
4451 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4452 | int err = 0; | |
4453 | ||
4454 | switch (obj->trans) { | |
4455 | case SWITCHDEV_TRANS_PREPARE: | |
4456 | BUG_ON(!list_empty(&rocker_port->trans_mem)); | |
4457 | break; | |
4458 | case SWITCHDEV_TRANS_ABORT: | |
4459 | rocker_port_trans_abort(rocker_port); | |
4460 | return 0; | |
4461 | default: | |
4462 | break; | |
4463 | } | |
4464 | ||
4465 | switch (obj->id) { | |
4466 | case SWITCHDEV_OBJ_PORT_VLAN: | |
4467 | err = rocker_port_vlans_add(rocker_port, obj->trans, | |
4468 | &obj->vlan); | |
4469 | break; | |
4470 | default: | |
4471 | err = -EOPNOTSUPP; | |
4472 | break; | |
4473 | } | |
4474 | ||
4475 | return err; | |
4476 | } | |
4477 | ||
4478 | static int rocker_port_vlan_del(struct rocker_port *rocker_port, | |
4479 | u16 vid, u16 flags) | |
4480 | { | |
4481 | int err; | |
4482 | ||
4483 | err = rocker_port_router_mac(rocker_port, SWITCHDEV_TRANS_NONE, | |
4484 | ROCKER_OP_FLAG_REMOVE, htons(vid)); | |
4485 | if (err) | |
4486 | return err; | |
4487 | ||
4488 | return rocker_port_vlan(rocker_port, SWITCHDEV_TRANS_NONE, | |
4489 | ROCKER_OP_FLAG_REMOVE, vid); | |
4490 | } | |
4491 | ||
4492 | static int rocker_port_vlans_del(struct rocker_port *rocker_port, | |
4493 | struct switchdev_obj_vlan *vlan) | |
4494 | { | |
4495 | u16 vid; | |
4496 | int err; | |
4497 | ||
4498 | for (vid = vlan->vid_start; vid <= vlan->vid_end; vid++) { | |
4499 | err = rocker_port_vlan_del(rocker_port, vid, vlan->flags); | |
4500 | if (err) | |
4501 | return err; | |
4502 | } | |
4503 | ||
4504 | return 0; | |
4505 | } | |
4506 | ||
4507 | static int rocker_port_obj_del(struct net_device *dev, | |
4508 | struct switchdev_obj *obj) | |
4509 | { | |
4510 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4511 | int err = 0; | |
4512 | ||
4513 | switch (obj->id) { | |
4514 | case SWITCHDEV_OBJ_PORT_VLAN: | |
4515 | err = rocker_port_vlans_del(rocker_port, &obj->vlan); | |
4516 | break; | |
4517 | default: | |
4518 | err = -EOPNOTSUPP; | |
4519 | break; | |
4520 | } | |
4521 | ||
4522 | return err; | |
4523 | } | |
4524 | ||
9d47c0a2 JP |
4525 | static int rocker_port_switchdev_fib_ipv4_add(struct net_device *dev, |
4526 | __be32 dst, int dst_len, | |
4527 | struct fib_info *fi, | |
4528 | u8 tos, u8 type, | |
4529 | u32 nlflags, u32 tb_id) | |
c1beeef7 SF |
4530 | { |
4531 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4532 | int flags = 0; | |
4533 | ||
c4f20321 SF |
4534 | return rocker_port_fib_ipv4(rocker_port, SWITCHDEV_TRANS_NONE, |
4535 | dst, dst_len, fi, tb_id, flags); | |
c1beeef7 SF |
4536 | } |
4537 | ||
9d47c0a2 JP |
4538 | static int rocker_port_switchdev_fib_ipv4_del(struct net_device *dev, |
4539 | __be32 dst, int dst_len, | |
4540 | struct fib_info *fi, | |
4541 | u8 tos, u8 type, u32 tb_id) | |
c1beeef7 SF |
4542 | { |
4543 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4544 | int flags = ROCKER_OP_FLAG_REMOVE; | |
4545 | ||
c4f20321 SF |
4546 | return rocker_port_fib_ipv4(rocker_port, SWITCHDEV_TRANS_NONE, |
4547 | dst, dst_len, fi, tb_id, flags); | |
c1beeef7 SF |
4548 | } |
4549 | ||
9d47c0a2 | 4550 | static const struct switchdev_ops rocker_port_switchdev_ops = { |
f8e20a9f | 4551 | .switchdev_port_attr_get = rocker_port_attr_get, |
35636062 | 4552 | .switchdev_port_attr_set = rocker_port_attr_set, |
9228ad26 SF |
4553 | .switchdev_port_obj_add = rocker_port_obj_add, |
4554 | .switchdev_port_obj_del = rocker_port_obj_del, | |
9d47c0a2 JP |
4555 | .switchdev_fib_ipv4_add = rocker_port_switchdev_fib_ipv4_add, |
4556 | .switchdev_fib_ipv4_del = rocker_port_switchdev_fib_ipv4_del, | |
4b8ac966 JP |
4557 | }; |
4558 | ||
4559 | /******************** | |
4560 | * ethtool interface | |
4561 | ********************/ | |
4562 | ||
4563 | static int rocker_port_get_settings(struct net_device *dev, | |
4564 | struct ethtool_cmd *ecmd) | |
4565 | { | |
4566 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4567 | ||
4568 | return rocker_cmd_get_port_settings_ethtool(rocker_port, ecmd); | |
4569 | } | |
4570 | ||
4571 | static int rocker_port_set_settings(struct net_device *dev, | |
4572 | struct ethtool_cmd *ecmd) | |
4573 | { | |
4574 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4575 | ||
4576 | return rocker_cmd_set_port_settings_ethtool(rocker_port, ecmd); | |
4577 | } | |
4578 | ||
4579 | static void rocker_port_get_drvinfo(struct net_device *dev, | |
4580 | struct ethtool_drvinfo *drvinfo) | |
4581 | { | |
4582 | strlcpy(drvinfo->driver, rocker_driver_name, sizeof(drvinfo->driver)); | |
4583 | strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version)); | |
4584 | } | |
4585 | ||
9766e97a DA |
4586 | static struct rocker_port_stats { |
4587 | char str[ETH_GSTRING_LEN]; | |
4588 | int type; | |
4589 | } rocker_port_stats[] = { | |
4590 | { "rx_packets", ROCKER_TLV_CMD_PORT_STATS_RX_PKTS, }, | |
4591 | { "rx_bytes", ROCKER_TLV_CMD_PORT_STATS_RX_BYTES, }, | |
4592 | { "rx_dropped", ROCKER_TLV_CMD_PORT_STATS_RX_DROPPED, }, | |
4593 | { "rx_errors", ROCKER_TLV_CMD_PORT_STATS_RX_ERRORS, }, | |
4594 | ||
4595 | { "tx_packets", ROCKER_TLV_CMD_PORT_STATS_TX_PKTS, }, | |
4596 | { "tx_bytes", ROCKER_TLV_CMD_PORT_STATS_TX_BYTES, }, | |
4597 | { "tx_dropped", ROCKER_TLV_CMD_PORT_STATS_TX_DROPPED, }, | |
4598 | { "tx_errors", ROCKER_TLV_CMD_PORT_STATS_TX_ERRORS, }, | |
4599 | }; | |
4600 | ||
4601 | #define ROCKER_PORT_STATS_LEN ARRAY_SIZE(rocker_port_stats) | |
4602 | ||
4603 | static void rocker_port_get_strings(struct net_device *netdev, u32 stringset, | |
4604 | u8 *data) | |
4605 | { | |
4606 | u8 *p = data; | |
4607 | int i; | |
4608 | ||
4609 | switch (stringset) { | |
4610 | case ETH_SS_STATS: | |
4611 | for (i = 0; i < ARRAY_SIZE(rocker_port_stats); i++) { | |
4612 | memcpy(p, rocker_port_stats[i].str, ETH_GSTRING_LEN); | |
4613 | p += ETH_GSTRING_LEN; | |
4614 | } | |
4615 | break; | |
4616 | } | |
4617 | } | |
4618 | ||
4619 | static int | |
4620 | rocker_cmd_get_port_stats_prep(struct rocker *rocker, | |
4621 | struct rocker_port *rocker_port, | |
4622 | struct rocker_desc_info *desc_info, | |
4623 | void *priv) | |
4624 | { | |
4625 | struct rocker_tlv *cmd_stats; | |
4626 | ||
4627 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, | |
4628 | ROCKER_TLV_CMD_TYPE_GET_PORT_STATS)) | |
4629 | return -EMSGSIZE; | |
4630 | ||
4631 | cmd_stats = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
4632 | if (!cmd_stats) | |
4633 | return -EMSGSIZE; | |
4634 | ||
4a6bb6d3 SF |
4635 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_STATS_PPORT, |
4636 | rocker_port->pport)) | |
9766e97a DA |
4637 | return -EMSGSIZE; |
4638 | ||
4639 | rocker_tlv_nest_end(desc_info, cmd_stats); | |
4640 | ||
4641 | return 0; | |
4642 | } | |
4643 | ||
4644 | static int | |
4645 | rocker_cmd_get_port_stats_ethtool_proc(struct rocker *rocker, | |
4646 | struct rocker_port *rocker_port, | |
4647 | struct rocker_desc_info *desc_info, | |
4648 | void *priv) | |
4649 | { | |
4650 | struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1]; | |
4651 | struct rocker_tlv *stats_attrs[ROCKER_TLV_CMD_PORT_STATS_MAX + 1]; | |
4652 | struct rocker_tlv *pattr; | |
4a6bb6d3 | 4653 | u32 pport; |
9766e97a DA |
4654 | u64 *data = priv; |
4655 | int i; | |
4656 | ||
4657 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info); | |
4658 | ||
4659 | if (!attrs[ROCKER_TLV_CMD_INFO]) | |
4660 | return -EIO; | |
4661 | ||
4662 | rocker_tlv_parse_nested(stats_attrs, ROCKER_TLV_CMD_PORT_STATS_MAX, | |
4663 | attrs[ROCKER_TLV_CMD_INFO]); | |
4664 | ||
4a6bb6d3 | 4665 | if (!stats_attrs[ROCKER_TLV_CMD_PORT_STATS_PPORT]) |
9766e97a DA |
4666 | return -EIO; |
4667 | ||
4a6bb6d3 SF |
4668 | pport = rocker_tlv_get_u32(stats_attrs[ROCKER_TLV_CMD_PORT_STATS_PPORT]); |
4669 | if (pport != rocker_port->pport) | |
9766e97a DA |
4670 | return -EIO; |
4671 | ||
4672 | for (i = 0; i < ARRAY_SIZE(rocker_port_stats); i++) { | |
4673 | pattr = stats_attrs[rocker_port_stats[i].type]; | |
4674 | if (!pattr) | |
4675 | continue; | |
4676 | ||
4677 | data[i] = rocker_tlv_get_u64(pattr); | |
4678 | } | |
4679 | ||
4680 | return 0; | |
4681 | } | |
4682 | ||
4683 | static int rocker_cmd_get_port_stats_ethtool(struct rocker_port *rocker_port, | |
4684 | void *priv) | |
4685 | { | |
4686 | return rocker_cmd_exec(rocker_port->rocker, rocker_port, | |
c4f20321 | 4687 | SWITCHDEV_TRANS_NONE, |
9766e97a DA |
4688 | rocker_cmd_get_port_stats_prep, NULL, |
4689 | rocker_cmd_get_port_stats_ethtool_proc, | |
c4f20321 | 4690 | priv); |
9766e97a DA |
4691 | } |
4692 | ||
4693 | static void rocker_port_get_stats(struct net_device *dev, | |
4694 | struct ethtool_stats *stats, u64 *data) | |
4695 | { | |
4696 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4697 | ||
4698 | if (rocker_cmd_get_port_stats_ethtool(rocker_port, data) != 0) { | |
4699 | int i; | |
4700 | ||
4701 | for (i = 0; i < ARRAY_SIZE(rocker_port_stats); ++i) | |
4702 | data[i] = 0; | |
4703 | } | |
4704 | ||
4705 | return; | |
4706 | } | |
4707 | ||
4708 | static int rocker_port_get_sset_count(struct net_device *netdev, int sset) | |
4709 | { | |
4710 | switch (sset) { | |
4711 | case ETH_SS_STATS: | |
4712 | return ROCKER_PORT_STATS_LEN; | |
4713 | default: | |
4714 | return -EOPNOTSUPP; | |
4715 | } | |
4716 | } | |
4717 | ||
4b8ac966 JP |
4718 | static const struct ethtool_ops rocker_port_ethtool_ops = { |
4719 | .get_settings = rocker_port_get_settings, | |
4720 | .set_settings = rocker_port_set_settings, | |
4721 | .get_drvinfo = rocker_port_get_drvinfo, | |
4722 | .get_link = ethtool_op_get_link, | |
9766e97a DA |
4723 | .get_strings = rocker_port_get_strings, |
4724 | .get_ethtool_stats = rocker_port_get_stats, | |
4725 | .get_sset_count = rocker_port_get_sset_count, | |
4b8ac966 JP |
4726 | }; |
4727 | ||
4728 | /***************** | |
4729 | * NAPI interface | |
4730 | *****************/ | |
4731 | ||
4732 | static struct rocker_port *rocker_port_napi_tx_get(struct napi_struct *napi) | |
4733 | { | |
4734 | return container_of(napi, struct rocker_port, napi_tx); | |
4735 | } | |
4736 | ||
4737 | static int rocker_port_poll_tx(struct napi_struct *napi, int budget) | |
4738 | { | |
4739 | struct rocker_port *rocker_port = rocker_port_napi_tx_get(napi); | |
4740 | struct rocker *rocker = rocker_port->rocker; | |
4741 | struct rocker_desc_info *desc_info; | |
4742 | u32 credits = 0; | |
4743 | int err; | |
4744 | ||
4745 | /* Cleanup tx descriptors */ | |
4746 | while ((desc_info = rocker_desc_tail_get(&rocker_port->tx_ring))) { | |
f2bbca51 DA |
4747 | struct sk_buff *skb; |
4748 | ||
4b8ac966 JP |
4749 | err = rocker_desc_err(desc_info); |
4750 | if (err && net_ratelimit()) | |
4751 | netdev_err(rocker_port->dev, "tx desc received with err %d\n", | |
4752 | err); | |
4753 | rocker_tx_desc_frags_unmap(rocker_port, desc_info); | |
f2bbca51 DA |
4754 | |
4755 | skb = rocker_desc_cookie_ptr_get(desc_info); | |
4756 | if (err == 0) { | |
4757 | rocker_port->dev->stats.tx_packets++; | |
4758 | rocker_port->dev->stats.tx_bytes += skb->len; | |
4759 | } else | |
4760 | rocker_port->dev->stats.tx_errors++; | |
4761 | ||
4762 | dev_kfree_skb_any(skb); | |
4b8ac966 JP |
4763 | credits++; |
4764 | } | |
4765 | ||
4766 | if (credits && netif_queue_stopped(rocker_port->dev)) | |
4767 | netif_wake_queue(rocker_port->dev); | |
4768 | ||
4769 | napi_complete(napi); | |
4770 | rocker_dma_ring_credits_set(rocker, &rocker_port->tx_ring, credits); | |
4771 | ||
4772 | return 0; | |
4773 | } | |
4774 | ||
4775 | static int rocker_port_rx_proc(struct rocker *rocker, | |
4776 | struct rocker_port *rocker_port, | |
4777 | struct rocker_desc_info *desc_info) | |
4778 | { | |
4779 | struct rocker_tlv *attrs[ROCKER_TLV_RX_MAX + 1]; | |
4780 | struct sk_buff *skb = rocker_desc_cookie_ptr_get(desc_info); | |
4781 | size_t rx_len; | |
4782 | ||
4783 | if (!skb) | |
4784 | return -ENOENT; | |
4785 | ||
4786 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_RX_MAX, desc_info); | |
4787 | if (!attrs[ROCKER_TLV_RX_FRAG_LEN]) | |
4788 | return -EINVAL; | |
4789 | ||
4790 | rocker_dma_rx_ring_skb_unmap(rocker, attrs); | |
4791 | ||
4792 | rx_len = rocker_tlv_get_u16(attrs[ROCKER_TLV_RX_FRAG_LEN]); | |
4793 | skb_put(skb, rx_len); | |
4794 | skb->protocol = eth_type_trans(skb, rocker_port->dev); | |
f2bbca51 DA |
4795 | |
4796 | rocker_port->dev->stats.rx_packets++; | |
4797 | rocker_port->dev->stats.rx_bytes += skb->len; | |
4798 | ||
4b8ac966 JP |
4799 | netif_receive_skb(skb); |
4800 | ||
4801 | return rocker_dma_rx_ring_skb_alloc(rocker, rocker_port, desc_info); | |
4802 | } | |
4803 | ||
4804 | static struct rocker_port *rocker_port_napi_rx_get(struct napi_struct *napi) | |
4805 | { | |
4806 | return container_of(napi, struct rocker_port, napi_rx); | |
4807 | } | |
4808 | ||
4809 | static int rocker_port_poll_rx(struct napi_struct *napi, int budget) | |
4810 | { | |
4811 | struct rocker_port *rocker_port = rocker_port_napi_rx_get(napi); | |
4812 | struct rocker *rocker = rocker_port->rocker; | |
4813 | struct rocker_desc_info *desc_info; | |
4814 | u32 credits = 0; | |
4815 | int err; | |
4816 | ||
4817 | /* Process rx descriptors */ | |
4818 | while (credits < budget && | |
4819 | (desc_info = rocker_desc_tail_get(&rocker_port->rx_ring))) { | |
4820 | err = rocker_desc_err(desc_info); | |
4821 | if (err) { | |
4822 | if (net_ratelimit()) | |
4823 | netdev_err(rocker_port->dev, "rx desc received with err %d\n", | |
4824 | err); | |
4825 | } else { | |
4826 | err = rocker_port_rx_proc(rocker, rocker_port, | |
4827 | desc_info); | |
4828 | if (err && net_ratelimit()) | |
4829 | netdev_err(rocker_port->dev, "rx processing failed with err %d\n", | |
4830 | err); | |
4831 | } | |
f2bbca51 DA |
4832 | if (err) |
4833 | rocker_port->dev->stats.rx_errors++; | |
4834 | ||
4b8ac966 JP |
4835 | rocker_desc_gen_clear(desc_info); |
4836 | rocker_desc_head_set(rocker, &rocker_port->rx_ring, desc_info); | |
4837 | credits++; | |
4838 | } | |
4839 | ||
4840 | if (credits < budget) | |
4841 | napi_complete(napi); | |
4842 | ||
4843 | rocker_dma_ring_credits_set(rocker, &rocker_port->rx_ring, credits); | |
4844 | ||
4845 | return credits; | |
4846 | } | |
4847 | ||
4848 | /***************** | |
4849 | * PCI driver ops | |
4850 | *****************/ | |
4851 | ||
4852 | static void rocker_carrier_init(struct rocker_port *rocker_port) | |
4853 | { | |
4854 | struct rocker *rocker = rocker_port->rocker; | |
4855 | u64 link_status = rocker_read64(rocker, PORT_PHYS_LINK_STATUS); | |
4856 | bool link_up; | |
4857 | ||
4a6bb6d3 | 4858 | link_up = link_status & (1 << rocker_port->pport); |
4b8ac966 JP |
4859 | if (link_up) |
4860 | netif_carrier_on(rocker_port->dev); | |
4861 | else | |
4862 | netif_carrier_off(rocker_port->dev); | |
4863 | } | |
4864 | ||
4865 | static void rocker_remove_ports(struct rocker *rocker) | |
4866 | { | |
9f6bbf7c | 4867 | struct rocker_port *rocker_port; |
4b8ac966 JP |
4868 | int i; |
4869 | ||
9f6bbf7c SF |
4870 | for (i = 0; i < rocker->port_count; i++) { |
4871 | rocker_port = rocker->ports[i]; | |
c4f20321 SF |
4872 | rocker_port_ig_tbl(rocker_port, SWITCHDEV_TRANS_NONE, |
4873 | ROCKER_OP_FLAG_REMOVE); | |
9f6bbf7c SF |
4874 | unregister_netdev(rocker_port->dev); |
4875 | } | |
4b8ac966 JP |
4876 | kfree(rocker->ports); |
4877 | } | |
4878 | ||
4879 | static void rocker_port_dev_addr_init(struct rocker *rocker, | |
4880 | struct rocker_port *rocker_port) | |
4881 | { | |
4882 | struct pci_dev *pdev = rocker->pdev; | |
4883 | int err; | |
4884 | ||
4885 | err = rocker_cmd_get_port_settings_macaddr(rocker_port, | |
4886 | rocker_port->dev->dev_addr); | |
4887 | if (err) { | |
4888 | dev_warn(&pdev->dev, "failed to get mac address, using random\n"); | |
4889 | eth_hw_addr_random(rocker_port->dev); | |
4890 | } | |
4891 | } | |
4892 | ||
4893 | static int rocker_probe_port(struct rocker *rocker, unsigned int port_number) | |
4894 | { | |
4895 | struct pci_dev *pdev = rocker->pdev; | |
4896 | struct rocker_port *rocker_port; | |
4897 | struct net_device *dev; | |
4898 | int err; | |
4899 | ||
4900 | dev = alloc_etherdev(sizeof(struct rocker_port)); | |
4901 | if (!dev) | |
4902 | return -ENOMEM; | |
4903 | rocker_port = netdev_priv(dev); | |
4904 | rocker_port->dev = dev; | |
4905 | rocker_port->rocker = rocker; | |
4906 | rocker_port->port_number = port_number; | |
4a6bb6d3 | 4907 | rocker_port->pport = port_number + 1; |
5111f80c | 4908 | rocker_port->brport_flags = BR_LEARNING | BR_LEARNING_SYNC; |
c4f20321 | 4909 | INIT_LIST_HEAD(&rocker_port->trans_mem); |
4b8ac966 JP |
4910 | |
4911 | rocker_port_dev_addr_init(rocker, rocker_port); | |
4912 | dev->netdev_ops = &rocker_port_netdev_ops; | |
4913 | dev->ethtool_ops = &rocker_port_ethtool_ops; | |
9d47c0a2 | 4914 | dev->switchdev_ops = &rocker_port_switchdev_ops; |
4b8ac966 JP |
4915 | netif_napi_add(dev, &rocker_port->napi_tx, rocker_port_poll_tx, |
4916 | NAPI_POLL_WEIGHT); | |
4917 | netif_napi_add(dev, &rocker_port->napi_rx, rocker_port_poll_rx, | |
4918 | NAPI_POLL_WEIGHT); | |
4919 | rocker_carrier_init(rocker_port); | |
4920 | ||
c1beeef7 SF |
4921 | dev->features |= NETIF_F_NETNS_LOCAL | |
4922 | NETIF_F_HW_VLAN_CTAG_FILTER | | |
4923 | NETIF_F_HW_SWITCH_OFFLOAD; | |
4b8ac966 JP |
4924 | |
4925 | err = register_netdev(dev); | |
4926 | if (err) { | |
4927 | dev_err(&pdev->dev, "register_netdev failed\n"); | |
4928 | goto err_register_netdev; | |
4929 | } | |
4930 | rocker->ports[port_number] = rocker_port; | |
4931 | ||
c4f20321 | 4932 | rocker_port_set_learning(rocker_port, SWITCHDEV_TRANS_NONE); |
5111f80c | 4933 | |
9f6bbf7c | 4934 | rocker_port->internal_vlan_id = |
c4f20321 SF |
4935 | rocker_port_internal_vlan_id_get(rocker_port, |
4936 | SWITCHDEV_TRANS_NONE, | |
4937 | dev->ifindex); | |
4938 | err = rocker_port_ig_tbl(rocker_port, SWITCHDEV_TRANS_NONE, 0); | |
9f6bbf7c SF |
4939 | if (err) { |
4940 | dev_err(&pdev->dev, "install ig port table failed\n"); | |
4941 | goto err_port_ig_tbl; | |
4942 | } | |
4943 | ||
4b8ac966 JP |
4944 | return 0; |
4945 | ||
9f6bbf7c SF |
4946 | err_port_ig_tbl: |
4947 | unregister_netdev(dev); | |
4b8ac966 JP |
4948 | err_register_netdev: |
4949 | free_netdev(dev); | |
4950 | return err; | |
4951 | } | |
4952 | ||
4953 | static int rocker_probe_ports(struct rocker *rocker) | |
4954 | { | |
4955 | int i; | |
4956 | size_t alloc_size; | |
4957 | int err; | |
4958 | ||
4959 | alloc_size = sizeof(struct rocker_port *) * rocker->port_count; | |
4960 | rocker->ports = kmalloc(alloc_size, GFP_KERNEL); | |
e65ad3be DC |
4961 | if (!rocker->ports) |
4962 | return -ENOMEM; | |
4b8ac966 JP |
4963 | for (i = 0; i < rocker->port_count; i++) { |
4964 | err = rocker_probe_port(rocker, i); | |
4965 | if (err) | |
4966 | goto remove_ports; | |
4967 | } | |
4968 | return 0; | |
4969 | ||
4970 | remove_ports: | |
4971 | rocker_remove_ports(rocker); | |
4972 | return err; | |
4973 | } | |
4974 | ||
4975 | static int rocker_msix_init(struct rocker *rocker) | |
4976 | { | |
4977 | struct pci_dev *pdev = rocker->pdev; | |
4978 | int msix_entries; | |
4979 | int i; | |
4980 | int err; | |
4981 | ||
4982 | msix_entries = pci_msix_vec_count(pdev); | |
4983 | if (msix_entries < 0) | |
4984 | return msix_entries; | |
4985 | ||
4986 | if (msix_entries != ROCKER_MSIX_VEC_COUNT(rocker->port_count)) | |
4987 | return -EINVAL; | |
4988 | ||
4989 | rocker->msix_entries = kmalloc_array(msix_entries, | |
4990 | sizeof(struct msix_entry), | |
4991 | GFP_KERNEL); | |
4992 | if (!rocker->msix_entries) | |
4993 | return -ENOMEM; | |
4994 | ||
4995 | for (i = 0; i < msix_entries; i++) | |
4996 | rocker->msix_entries[i].entry = i; | |
4997 | ||
4998 | err = pci_enable_msix_exact(pdev, rocker->msix_entries, msix_entries); | |
4999 | if (err < 0) | |
5000 | goto err_enable_msix; | |
5001 | ||
5002 | return 0; | |
5003 | ||
5004 | err_enable_msix: | |
5005 | kfree(rocker->msix_entries); | |
5006 | return err; | |
5007 | } | |
5008 | ||
5009 | static void rocker_msix_fini(struct rocker *rocker) | |
5010 | { | |
5011 | pci_disable_msix(rocker->pdev); | |
5012 | kfree(rocker->msix_entries); | |
5013 | } | |
5014 | ||
5015 | static int rocker_probe(struct pci_dev *pdev, const struct pci_device_id *id) | |
5016 | { | |
5017 | struct rocker *rocker; | |
5018 | int err; | |
5019 | ||
5020 | rocker = kzalloc(sizeof(*rocker), GFP_KERNEL); | |
5021 | if (!rocker) | |
5022 | return -ENOMEM; | |
5023 | ||
5024 | err = pci_enable_device(pdev); | |
5025 | if (err) { | |
5026 | dev_err(&pdev->dev, "pci_enable_device failed\n"); | |
5027 | goto err_pci_enable_device; | |
5028 | } | |
5029 | ||
5030 | err = pci_request_regions(pdev, rocker_driver_name); | |
5031 | if (err) { | |
5032 | dev_err(&pdev->dev, "pci_request_regions failed\n"); | |
5033 | goto err_pci_request_regions; | |
5034 | } | |
5035 | ||
5036 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); | |
5037 | if (!err) { | |
5038 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); | |
5039 | if (err) { | |
5040 | dev_err(&pdev->dev, "pci_set_consistent_dma_mask failed\n"); | |
5041 | goto err_pci_set_dma_mask; | |
5042 | } | |
5043 | } else { | |
5044 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); | |
5045 | if (err) { | |
5046 | dev_err(&pdev->dev, "pci_set_dma_mask failed\n"); | |
5047 | goto err_pci_set_dma_mask; | |
5048 | } | |
5049 | } | |
5050 | ||
5051 | if (pci_resource_len(pdev, 0) < ROCKER_PCI_BAR0_SIZE) { | |
5052 | dev_err(&pdev->dev, "invalid PCI region size\n"); | |
3122a92e | 5053 | err = -EINVAL; |
4b8ac966 JP |
5054 | goto err_pci_resource_len_check; |
5055 | } | |
5056 | ||
5057 | rocker->hw_addr = ioremap(pci_resource_start(pdev, 0), | |
5058 | pci_resource_len(pdev, 0)); | |
5059 | if (!rocker->hw_addr) { | |
5060 | dev_err(&pdev->dev, "ioremap failed\n"); | |
5061 | err = -EIO; | |
5062 | goto err_ioremap; | |
5063 | } | |
5064 | pci_set_master(pdev); | |
5065 | ||
5066 | rocker->pdev = pdev; | |
5067 | pci_set_drvdata(pdev, rocker); | |
5068 | ||
5069 | rocker->port_count = rocker_read32(rocker, PORT_PHYS_COUNT); | |
5070 | ||
5071 | err = rocker_msix_init(rocker); | |
5072 | if (err) { | |
5073 | dev_err(&pdev->dev, "MSI-X init failed\n"); | |
5074 | goto err_msix_init; | |
5075 | } | |
5076 | ||
5077 | err = rocker_basic_hw_test(rocker); | |
5078 | if (err) { | |
5079 | dev_err(&pdev->dev, "basic hw test failed\n"); | |
5080 | goto err_basic_hw_test; | |
5081 | } | |
5082 | ||
5083 | rocker_write32(rocker, CONTROL, ROCKER_CONTROL_RESET); | |
5084 | ||
5085 | err = rocker_dma_rings_init(rocker); | |
5086 | if (err) | |
5087 | goto err_dma_rings_init; | |
5088 | ||
5089 | err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), | |
5090 | rocker_cmd_irq_handler, 0, | |
5091 | rocker_driver_name, rocker); | |
5092 | if (err) { | |
5093 | dev_err(&pdev->dev, "cannot assign cmd irq\n"); | |
5094 | goto err_request_cmd_irq; | |
5095 | } | |
5096 | ||
5097 | err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), | |
5098 | rocker_event_irq_handler, 0, | |
5099 | rocker_driver_name, rocker); | |
5100 | if (err) { | |
5101 | dev_err(&pdev->dev, "cannot assign event irq\n"); | |
5102 | goto err_request_event_irq; | |
5103 | } | |
5104 | ||
5105 | rocker->hw.id = rocker_read64(rocker, SWITCH_ID); | |
5106 | ||
9f6bbf7c SF |
5107 | err = rocker_init_tbls(rocker); |
5108 | if (err) { | |
5109 | dev_err(&pdev->dev, "cannot init rocker tables\n"); | |
5110 | goto err_init_tbls; | |
5111 | } | |
5112 | ||
4b8ac966 JP |
5113 | err = rocker_probe_ports(rocker); |
5114 | if (err) { | |
5115 | dev_err(&pdev->dev, "failed to probe ports\n"); | |
5116 | goto err_probe_ports; | |
5117 | } | |
5118 | ||
5119 | dev_info(&pdev->dev, "Rocker switch with id %016llx\n", rocker->hw.id); | |
5120 | ||
5121 | return 0; | |
5122 | ||
5123 | err_probe_ports: | |
9f6bbf7c SF |
5124 | rocker_free_tbls(rocker); |
5125 | err_init_tbls: | |
4b8ac966 JP |
5126 | free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), rocker); |
5127 | err_request_event_irq: | |
5128 | free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), rocker); | |
5129 | err_request_cmd_irq: | |
5130 | rocker_dma_rings_fini(rocker); | |
5131 | err_dma_rings_init: | |
5132 | err_basic_hw_test: | |
5133 | rocker_msix_fini(rocker); | |
5134 | err_msix_init: | |
5135 | iounmap(rocker->hw_addr); | |
5136 | err_ioremap: | |
5137 | err_pci_resource_len_check: | |
5138 | err_pci_set_dma_mask: | |
5139 | pci_release_regions(pdev); | |
5140 | err_pci_request_regions: | |
5141 | pci_disable_device(pdev); | |
5142 | err_pci_enable_device: | |
5143 | kfree(rocker); | |
5144 | return err; | |
5145 | } | |
5146 | ||
5147 | static void rocker_remove(struct pci_dev *pdev) | |
5148 | { | |
5149 | struct rocker *rocker = pci_get_drvdata(pdev); | |
5150 | ||
9f6bbf7c | 5151 | rocker_free_tbls(rocker); |
4b8ac966 JP |
5152 | rocker_write32(rocker, CONTROL, ROCKER_CONTROL_RESET); |
5153 | rocker_remove_ports(rocker); | |
5154 | free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), rocker); | |
5155 | free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), rocker); | |
5156 | rocker_dma_rings_fini(rocker); | |
5157 | rocker_msix_fini(rocker); | |
5158 | iounmap(rocker->hw_addr); | |
5159 | pci_release_regions(rocker->pdev); | |
5160 | pci_disable_device(rocker->pdev); | |
5161 | kfree(rocker); | |
5162 | } | |
5163 | ||
5164 | static struct pci_driver rocker_pci_driver = { | |
5165 | .name = rocker_driver_name, | |
5166 | .id_table = rocker_pci_id_table, | |
5167 | .probe = rocker_probe, | |
5168 | .remove = rocker_remove, | |
5169 | }; | |
5170 | ||
6c707945 SF |
5171 | /************************************ |
5172 | * Net device notifier event handler | |
5173 | ************************************/ | |
5174 | ||
5175 | static bool rocker_port_dev_check(struct net_device *dev) | |
5176 | { | |
5177 | return dev->netdev_ops == &rocker_port_netdev_ops; | |
5178 | } | |
5179 | ||
5180 | static int rocker_port_bridge_join(struct rocker_port *rocker_port, | |
5181 | struct net_device *bridge) | |
5182 | { | |
5183 | int err; | |
5184 | ||
c4f20321 | 5185 | rocker_port_internal_vlan_id_put(rocker_port, SWITCHDEV_TRANS_NONE, |
6c707945 SF |
5186 | rocker_port->dev->ifindex); |
5187 | ||
5188 | rocker_port->bridge_dev = bridge; | |
5189 | ||
5190 | /* Use bridge internal VLAN ID for untagged pkts */ | |
c4f20321 SF |
5191 | err = rocker_port_vlan(rocker_port, SWITCHDEV_TRANS_NONE, |
5192 | ROCKER_OP_FLAG_REMOVE, 0); | |
6c707945 SF |
5193 | if (err) |
5194 | return err; | |
5195 | rocker_port->internal_vlan_id = | |
5196 | rocker_port_internal_vlan_id_get(rocker_port, | |
c4f20321 | 5197 | SWITCHDEV_TRANS_NONE, |
6c707945 | 5198 | bridge->ifindex); |
c4f20321 | 5199 | return rocker_port_vlan(rocker_port, SWITCHDEV_TRANS_NONE, 0, 0); |
6c707945 SF |
5200 | } |
5201 | ||
5202 | static int rocker_port_bridge_leave(struct rocker_port *rocker_port) | |
5203 | { | |
5204 | int err; | |
5205 | ||
c4f20321 | 5206 | rocker_port_internal_vlan_id_put(rocker_port, SWITCHDEV_TRANS_NONE, |
6c707945 SF |
5207 | rocker_port->bridge_dev->ifindex); |
5208 | ||
5209 | rocker_port->bridge_dev = NULL; | |
5210 | ||
5211 | /* Use port internal VLAN ID for untagged pkts */ | |
c4f20321 SF |
5212 | err = rocker_port_vlan(rocker_port, SWITCHDEV_TRANS_NONE, |
5213 | ROCKER_OP_FLAG_REMOVE, 0); | |
6c707945 SF |
5214 | if (err) |
5215 | return err; | |
5216 | rocker_port->internal_vlan_id = | |
5217 | rocker_port_internal_vlan_id_get(rocker_port, | |
c4f20321 | 5218 | SWITCHDEV_TRANS_NONE, |
6c707945 | 5219 | rocker_port->dev->ifindex); |
c4f20321 | 5220 | err = rocker_port_vlan(rocker_port, SWITCHDEV_TRANS_NONE, 0, 0); |
e47172ab SF |
5221 | if (err) |
5222 | return err; | |
5223 | ||
5224 | if (rocker_port->dev->flags & IFF_UP) | |
c4f20321 | 5225 | err = rocker_port_fwd_enable(rocker_port, SWITCHDEV_TRANS_NONE); |
6c707945 SF |
5226 | |
5227 | return err; | |
5228 | } | |
5229 | ||
5230 | static int rocker_port_master_changed(struct net_device *dev) | |
5231 | { | |
5232 | struct rocker_port *rocker_port = netdev_priv(dev); | |
5233 | struct net_device *master = netdev_master_upper_dev_get(dev); | |
5234 | int err = 0; | |
5235 | ||
a6e95cc7 SH |
5236 | /* There are currently three cases handled here: |
5237 | * 1. Joining a bridge | |
5238 | * 2. Leaving a previously joined bridge | |
5239 | * 3. Other, e.g. being added to or removed from a bond or openvswitch, | |
5240 | * in which case nothing is done | |
5241 | */ | |
6c707945 SF |
5242 | if (master && master->rtnl_link_ops && |
5243 | !strcmp(master->rtnl_link_ops->kind, "bridge")) | |
5244 | err = rocker_port_bridge_join(rocker_port, master); | |
a6e95cc7 | 5245 | else if (rocker_port_is_bridged(rocker_port)) |
6c707945 SF |
5246 | err = rocker_port_bridge_leave(rocker_port); |
5247 | ||
5248 | return err; | |
5249 | } | |
5250 | ||
5251 | static int rocker_netdevice_event(struct notifier_block *unused, | |
5252 | unsigned long event, void *ptr) | |
5253 | { | |
5254 | struct net_device *dev; | |
5255 | int err; | |
5256 | ||
5257 | switch (event) { | |
5258 | case NETDEV_CHANGEUPPER: | |
5259 | dev = netdev_notifier_info_to_dev(ptr); | |
5260 | if (!rocker_port_dev_check(dev)) | |
5261 | return NOTIFY_DONE; | |
5262 | err = rocker_port_master_changed(dev); | |
5263 | if (err) | |
5264 | netdev_warn(dev, | |
5265 | "failed to reflect master change (err %d)\n", | |
5266 | err); | |
5267 | break; | |
5268 | } | |
5269 | ||
5270 | return NOTIFY_DONE; | |
5271 | } | |
5272 | ||
5273 | static struct notifier_block rocker_netdevice_nb __read_mostly = { | |
5274 | .notifier_call = rocker_netdevice_event, | |
5275 | }; | |
5276 | ||
c1beeef7 SF |
5277 | /************************************ |
5278 | * Net event notifier event handler | |
5279 | ************************************/ | |
5280 | ||
5281 | static int rocker_neigh_update(struct net_device *dev, struct neighbour *n) | |
5282 | { | |
5283 | struct rocker_port *rocker_port = netdev_priv(dev); | |
5284 | int flags = (n->nud_state & NUD_VALID) ? 0 : ROCKER_OP_FLAG_REMOVE; | |
5285 | __be32 ip_addr = *(__be32 *)n->primary_key; | |
5286 | ||
c4f20321 SF |
5287 | return rocker_port_ipv4_neigh(rocker_port, SWITCHDEV_TRANS_NONE, |
5288 | flags, ip_addr, n->ha); | |
c1beeef7 SF |
5289 | } |
5290 | ||
5291 | static int rocker_netevent_event(struct notifier_block *unused, | |
5292 | unsigned long event, void *ptr) | |
5293 | { | |
5294 | struct net_device *dev; | |
5295 | struct neighbour *n = ptr; | |
5296 | int err; | |
5297 | ||
5298 | switch (event) { | |
5299 | case NETEVENT_NEIGH_UPDATE: | |
5300 | if (n->tbl != &arp_tbl) | |
5301 | return NOTIFY_DONE; | |
5302 | dev = n->dev; | |
5303 | if (!rocker_port_dev_check(dev)) | |
5304 | return NOTIFY_DONE; | |
5305 | err = rocker_neigh_update(dev, n); | |
5306 | if (err) | |
5307 | netdev_warn(dev, | |
5308 | "failed to handle neigh update (err %d)\n", | |
5309 | err); | |
5310 | break; | |
5311 | } | |
5312 | ||
5313 | return NOTIFY_DONE; | |
5314 | } | |
5315 | ||
5316 | static struct notifier_block rocker_netevent_nb __read_mostly = { | |
5317 | .notifier_call = rocker_netevent_event, | |
5318 | }; | |
5319 | ||
4b8ac966 JP |
5320 | /*********************** |
5321 | * Module init and exit | |
5322 | ***********************/ | |
5323 | ||
5324 | static int __init rocker_module_init(void) | |
5325 | { | |
6c707945 SF |
5326 | int err; |
5327 | ||
5328 | register_netdevice_notifier(&rocker_netdevice_nb); | |
c1beeef7 | 5329 | register_netevent_notifier(&rocker_netevent_nb); |
6c707945 SF |
5330 | err = pci_register_driver(&rocker_pci_driver); |
5331 | if (err) | |
5332 | goto err_pci_register_driver; | |
5333 | return 0; | |
5334 | ||
5335 | err_pci_register_driver: | |
c1beeef7 | 5336 | unregister_netdevice_notifier(&rocker_netevent_nb); |
6c707945 SF |
5337 | unregister_netdevice_notifier(&rocker_netdevice_nb); |
5338 | return err; | |
4b8ac966 JP |
5339 | } |
5340 | ||
5341 | static void __exit rocker_module_exit(void) | |
5342 | { | |
c1beeef7 | 5343 | unregister_netevent_notifier(&rocker_netevent_nb); |
6c707945 | 5344 | unregister_netdevice_notifier(&rocker_netdevice_nb); |
4b8ac966 JP |
5345 | pci_unregister_driver(&rocker_pci_driver); |
5346 | } | |
5347 | ||
5348 | module_init(rocker_module_init); | |
5349 | module_exit(rocker_module_exit); | |
5350 | ||
5351 | MODULE_LICENSE("GPL v2"); | |
5352 | MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>"); | |
5353 | MODULE_AUTHOR("Scott Feldman <sfeldma@gmail.com>"); | |
5354 | MODULE_DESCRIPTION("Rocker switch device driver"); | |
5355 | MODULE_DEVICE_TABLE(pci, rocker_pci_id_table); |