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Commit | Line | Data |
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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; | |
4725ceb9 | 184 | dma_addr_t mapaddr; |
4b8ac966 JP |
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, | |
8254973f | 205 | ROCKER_CTRL_DFLT_OVS, |
9f6bbf7c SF |
206 | ROCKER_CTRL_MAX, |
207 | }; | |
208 | ||
209 | #define ROCKER_INTERNAL_VLAN_ID_BASE 0x0f00 | |
210 | #define ROCKER_N_INTERNAL_VLANS 255 | |
211 | #define ROCKER_VLAN_BITMAP_LEN BITS_TO_LONGS(VLAN_N_VID) | |
212 | #define ROCKER_INTERNAL_VLAN_BITMAP_LEN BITS_TO_LONGS(ROCKER_N_INTERNAL_VLANS) | |
213 | ||
4b8ac966 JP |
214 | struct rocker_port { |
215 | struct net_device *dev; | |
6c707945 | 216 | struct net_device *bridge_dev; |
4b8ac966 JP |
217 | struct rocker *rocker; |
218 | unsigned int port_number; | |
4a6bb6d3 | 219 | u32 pport; |
9f6bbf7c | 220 | __be16 internal_vlan_id; |
6c707945 | 221 | int stp_state; |
5111f80c | 222 | u32 brport_flags; |
9f6bbf7c SF |
223 | bool ctrls[ROCKER_CTRL_MAX]; |
224 | unsigned long vlan_bitmap[ROCKER_VLAN_BITMAP_LEN]; | |
4b8ac966 JP |
225 | struct napi_struct napi_tx; |
226 | struct napi_struct napi_rx; | |
227 | struct rocker_dma_ring_info tx_ring; | |
228 | struct rocker_dma_ring_info rx_ring; | |
c4f20321 | 229 | struct list_head trans_mem; |
4b8ac966 JP |
230 | }; |
231 | ||
232 | struct rocker { | |
233 | struct pci_dev *pdev; | |
234 | u8 __iomem *hw_addr; | |
235 | struct msix_entry *msix_entries; | |
236 | unsigned int port_count; | |
237 | struct rocker_port **ports; | |
238 | struct { | |
239 | u64 id; | |
240 | } hw; | |
4725ceb9 | 241 | spinlock_t cmd_ring_lock; /* for cmd ring accesses */ |
4b8ac966 JP |
242 | struct rocker_dma_ring_info cmd_ring; |
243 | struct rocker_dma_ring_info event_ring; | |
9f6bbf7c | 244 | DECLARE_HASHTABLE(flow_tbl, 16); |
4725ceb9 | 245 | spinlock_t flow_tbl_lock; /* for flow tbl accesses */ |
9f6bbf7c SF |
246 | u64 flow_tbl_next_cookie; |
247 | DECLARE_HASHTABLE(group_tbl, 16); | |
4725ceb9 | 248 | spinlock_t group_tbl_lock; /* for group tbl accesses */ |
9f6bbf7c | 249 | DECLARE_HASHTABLE(fdb_tbl, 16); |
4725ceb9 | 250 | spinlock_t fdb_tbl_lock; /* for fdb tbl accesses */ |
9f6bbf7c SF |
251 | unsigned long internal_vlan_bitmap[ROCKER_INTERNAL_VLAN_BITMAP_LEN]; |
252 | DECLARE_HASHTABLE(internal_vlan_tbl, 8); | |
4725ceb9 | 253 | spinlock_t internal_vlan_tbl_lock; /* for vlan tbl accesses */ |
c1beeef7 | 254 | DECLARE_HASHTABLE(neigh_tbl, 16); |
4725ceb9 | 255 | spinlock_t neigh_tbl_lock; /* for neigh tbl accesses */ |
c1beeef7 | 256 | u32 neigh_tbl_next_index; |
9f6bbf7c SF |
257 | }; |
258 | ||
259 | static const u8 zero_mac[ETH_ALEN] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; | |
260 | static const u8 ff_mac[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; | |
261 | static const u8 ll_mac[ETH_ALEN] = { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x00 }; | |
262 | static const u8 ll_mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0 }; | |
263 | static const u8 mcast_mac[ETH_ALEN] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 }; | |
264 | static const u8 ipv4_mcast[ETH_ALEN] = { 0x01, 0x00, 0x5e, 0x00, 0x00, 0x00 }; | |
265 | static const u8 ipv4_mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0x80, 0x00, 0x00 }; | |
266 | static const u8 ipv6_mcast[ETH_ALEN] = { 0x33, 0x33, 0x00, 0x00, 0x00, 0x00 }; | |
267 | static const u8 ipv6_mask[ETH_ALEN] = { 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }; | |
268 | ||
269 | /* Rocker priority levels for flow table entries. Higher | |
270 | * priority match takes precedence over lower priority match. | |
271 | */ | |
272 | ||
273 | enum { | |
274 | ROCKER_PRIORITY_UNKNOWN = 0, | |
275 | ROCKER_PRIORITY_IG_PORT = 1, | |
276 | ROCKER_PRIORITY_VLAN = 1, | |
277 | ROCKER_PRIORITY_TERM_MAC_UCAST = 0, | |
278 | ROCKER_PRIORITY_TERM_MAC_MCAST = 1, | |
9f6bbf7c SF |
279 | ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_EXACT = 1, |
280 | ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_WILD = 2, | |
281 | ROCKER_PRIORITY_BRIDGING_VLAN = 3, | |
282 | ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_EXACT = 1, | |
283 | ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_WILD = 2, | |
284 | ROCKER_PRIORITY_BRIDGING_TENANT = 3, | |
285 | ROCKER_PRIORITY_ACL_CTRL = 3, | |
286 | ROCKER_PRIORITY_ACL_NORMAL = 2, | |
287 | ROCKER_PRIORITY_ACL_DFLT = 1, | |
4b8ac966 JP |
288 | }; |
289 | ||
9f6bbf7c SF |
290 | static bool rocker_vlan_id_is_internal(__be16 vlan_id) |
291 | { | |
292 | u16 start = ROCKER_INTERNAL_VLAN_ID_BASE; | |
293 | u16 end = 0xffe; | |
294 | u16 _vlan_id = ntohs(vlan_id); | |
295 | ||
296 | return (_vlan_id >= start && _vlan_id <= end); | |
297 | } | |
298 | ||
e5054643 | 299 | static __be16 rocker_port_vid_to_vlan(const struct rocker_port *rocker_port, |
9f6bbf7c SF |
300 | u16 vid, bool *pop_vlan) |
301 | { | |
302 | __be16 vlan_id; | |
303 | ||
304 | if (pop_vlan) | |
305 | *pop_vlan = false; | |
306 | vlan_id = htons(vid); | |
307 | if (!vlan_id) { | |
308 | vlan_id = rocker_port->internal_vlan_id; | |
309 | if (pop_vlan) | |
310 | *pop_vlan = true; | |
311 | } | |
312 | ||
313 | return vlan_id; | |
314 | } | |
315 | ||
e5054643 | 316 | static u16 rocker_port_vlan_to_vid(const struct rocker_port *rocker_port, |
6c707945 SF |
317 | __be16 vlan_id) |
318 | { | |
319 | if (rocker_vlan_id_is_internal(vlan_id)) | |
320 | return 0; | |
321 | ||
322 | return ntohs(vlan_id); | |
323 | } | |
324 | ||
e5054643 | 325 | static bool rocker_port_is_bridged(const struct rocker_port *rocker_port) |
6c707945 | 326 | { |
fb4bf214 JP |
327 | return rocker_port->bridge_dev && |
328 | netif_is_bridge_master(rocker_port->bridge_dev); | |
8254973f SH |
329 | } |
330 | ||
331 | static bool rocker_port_is_ovsed(const struct rocker_port *rocker_port) | |
332 | { | |
fb4bf214 JP |
333 | return rocker_port->bridge_dev && |
334 | netif_is_ovs_master(rocker_port->bridge_dev); | |
6c707945 SF |
335 | } |
336 | ||
179f9a25 SF |
337 | #define ROCKER_OP_FLAG_REMOVE BIT(0) |
338 | #define ROCKER_OP_FLAG_NOWAIT BIT(1) | |
339 | #define ROCKER_OP_FLAG_LEARNED BIT(2) | |
340 | #define ROCKER_OP_FLAG_REFRESH BIT(3) | |
341 | ||
c4f20321 | 342 | static void *__rocker_port_mem_alloc(struct rocker_port *rocker_port, |
179f9a25 SF |
343 | enum switchdev_trans trans, int flags, |
344 | size_t size) | |
c4f20321 SF |
345 | { |
346 | struct list_head *elem = NULL; | |
179f9a25 SF |
347 | gfp_t gfp_flags = (flags & ROCKER_OP_FLAG_NOWAIT) ? |
348 | GFP_ATOMIC : GFP_KERNEL; | |
c4f20321 SF |
349 | |
350 | /* If in transaction prepare phase, allocate the memory | |
351 | * and enqueue it on a per-port list. If in transaction | |
352 | * commit phase, dequeue the memory from the per-port list | |
353 | * rather than re-allocating the memory. The idea is the | |
354 | * driver code paths for prepare and commit are identical | |
355 | * so the memory allocated in the prepare phase is the | |
356 | * memory used in the commit phase. | |
357 | */ | |
358 | ||
359 | switch (trans) { | |
360 | case SWITCHDEV_TRANS_PREPARE: | |
179f9a25 | 361 | elem = kzalloc(size + sizeof(*elem), gfp_flags); |
c4f20321 SF |
362 | if (!elem) |
363 | return NULL; | |
364 | list_add_tail(elem, &rocker_port->trans_mem); | |
365 | break; | |
366 | case SWITCHDEV_TRANS_COMMIT: | |
367 | BUG_ON(list_empty(&rocker_port->trans_mem)); | |
368 | elem = rocker_port->trans_mem.next; | |
369 | list_del_init(elem); | |
370 | break; | |
371 | case SWITCHDEV_TRANS_NONE: | |
179f9a25 | 372 | elem = kzalloc(size + sizeof(*elem), gfp_flags); |
c4f20321 SF |
373 | if (elem) |
374 | INIT_LIST_HEAD(elem); | |
375 | break; | |
376 | default: | |
377 | break; | |
378 | } | |
379 | ||
380 | return elem ? elem + 1 : NULL; | |
381 | } | |
382 | ||
383 | static void *rocker_port_kzalloc(struct rocker_port *rocker_port, | |
179f9a25 SF |
384 | enum switchdev_trans trans, int flags, |
385 | size_t size) | |
c4f20321 | 386 | { |
179f9a25 | 387 | return __rocker_port_mem_alloc(rocker_port, trans, flags, size); |
c4f20321 SF |
388 | } |
389 | ||
390 | static void *rocker_port_kcalloc(struct rocker_port *rocker_port, | |
179f9a25 SF |
391 | enum switchdev_trans trans, int flags, |
392 | size_t n, size_t size) | |
c4f20321 | 393 | { |
179f9a25 | 394 | return __rocker_port_mem_alloc(rocker_port, trans, flags, n * size); |
c4f20321 SF |
395 | } |
396 | ||
0985df73 | 397 | static void rocker_port_kfree(enum switchdev_trans trans, const void *mem) |
c4f20321 SF |
398 | { |
399 | struct list_head *elem; | |
400 | ||
401 | /* Frees are ignored if in transaction prepare phase. The | |
402 | * memory remains on the per-port list until freed in the | |
403 | * commit phase. | |
404 | */ | |
405 | ||
406 | if (trans == SWITCHDEV_TRANS_PREPARE) | |
407 | return; | |
408 | ||
409 | elem = (struct list_head *)mem - 1; | |
410 | BUG_ON(!list_empty(elem)); | |
411 | kfree(elem); | |
412 | } | |
413 | ||
4b8ac966 JP |
414 | struct rocker_wait { |
415 | wait_queue_head_t wait; | |
416 | bool done; | |
179f9a25 | 417 | bool nowait; |
4b8ac966 JP |
418 | }; |
419 | ||
420 | static void rocker_wait_reset(struct rocker_wait *wait) | |
421 | { | |
422 | wait->done = false; | |
179f9a25 | 423 | wait->nowait = false; |
4b8ac966 JP |
424 | } |
425 | ||
426 | static void rocker_wait_init(struct rocker_wait *wait) | |
427 | { | |
428 | init_waitqueue_head(&wait->wait); | |
429 | rocker_wait_reset(wait); | |
430 | } | |
431 | ||
c4f20321 | 432 | static struct rocker_wait *rocker_wait_create(struct rocker_port *rocker_port, |
179f9a25 SF |
433 | enum switchdev_trans trans, |
434 | int flags) | |
4b8ac966 JP |
435 | { |
436 | struct rocker_wait *wait; | |
437 | ||
179f9a25 | 438 | wait = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*wait)); |
4b8ac966 JP |
439 | if (!wait) |
440 | return NULL; | |
441 | rocker_wait_init(wait); | |
442 | return wait; | |
443 | } | |
444 | ||
0985df73 | 445 | static void rocker_wait_destroy(enum switchdev_trans trans, |
c4f20321 | 446 | struct rocker_wait *wait) |
4b8ac966 | 447 | { |
0985df73 | 448 | rocker_port_kfree(trans, wait); |
4b8ac966 JP |
449 | } |
450 | ||
451 | static bool rocker_wait_event_timeout(struct rocker_wait *wait, | |
452 | unsigned long timeout) | |
453 | { | |
454 | wait_event_timeout(wait->wait, wait->done, HZ / 10); | |
455 | if (!wait->done) | |
456 | return false; | |
457 | return true; | |
458 | } | |
459 | ||
460 | static void rocker_wait_wake_up(struct rocker_wait *wait) | |
461 | { | |
462 | wait->done = true; | |
463 | wake_up(&wait->wait); | |
464 | } | |
465 | ||
e5054643 | 466 | static u32 rocker_msix_vector(const struct rocker *rocker, unsigned int vector) |
4b8ac966 JP |
467 | { |
468 | return rocker->msix_entries[vector].vector; | |
469 | } | |
470 | ||
e5054643 | 471 | static u32 rocker_msix_tx_vector(const struct rocker_port *rocker_port) |
4b8ac966 JP |
472 | { |
473 | return rocker_msix_vector(rocker_port->rocker, | |
474 | ROCKER_MSIX_VEC_TX(rocker_port->port_number)); | |
475 | } | |
476 | ||
e5054643 | 477 | static u32 rocker_msix_rx_vector(const struct rocker_port *rocker_port) |
4b8ac966 JP |
478 | { |
479 | return rocker_msix_vector(rocker_port->rocker, | |
480 | ROCKER_MSIX_VEC_RX(rocker_port->port_number)); | |
481 | } | |
482 | ||
483 | #define rocker_write32(rocker, reg, val) \ | |
484 | writel((val), (rocker)->hw_addr + (ROCKER_ ## reg)) | |
485 | #define rocker_read32(rocker, reg) \ | |
486 | readl((rocker)->hw_addr + (ROCKER_ ## reg)) | |
487 | #define rocker_write64(rocker, reg, val) \ | |
488 | writeq((val), (rocker)->hw_addr + (ROCKER_ ## reg)) | |
489 | #define rocker_read64(rocker, reg) \ | |
490 | readq((rocker)->hw_addr + (ROCKER_ ## reg)) | |
491 | ||
492 | /***************************** | |
493 | * HW basic testing functions | |
494 | *****************************/ | |
495 | ||
e5054643 | 496 | static int rocker_reg_test(const struct rocker *rocker) |
4b8ac966 | 497 | { |
e5054643 | 498 | const struct pci_dev *pdev = rocker->pdev; |
4b8ac966 JP |
499 | u64 test_reg; |
500 | u64 rnd; | |
501 | ||
502 | rnd = prandom_u32(); | |
503 | rnd >>= 1; | |
504 | rocker_write32(rocker, TEST_REG, rnd); | |
505 | test_reg = rocker_read32(rocker, TEST_REG); | |
506 | if (test_reg != rnd * 2) { | |
507 | dev_err(&pdev->dev, "unexpected 32bit register value %08llx, expected %08llx\n", | |
508 | test_reg, rnd * 2); | |
509 | return -EIO; | |
510 | } | |
511 | ||
512 | rnd = prandom_u32(); | |
513 | rnd <<= 31; | |
514 | rnd |= prandom_u32(); | |
515 | rocker_write64(rocker, TEST_REG64, rnd); | |
516 | test_reg = rocker_read64(rocker, TEST_REG64); | |
517 | if (test_reg != rnd * 2) { | |
518 | dev_err(&pdev->dev, "unexpected 64bit register value %16llx, expected %16llx\n", | |
519 | test_reg, rnd * 2); | |
520 | return -EIO; | |
521 | } | |
522 | ||
523 | return 0; | |
524 | } | |
525 | ||
e5054643 SH |
526 | static int rocker_dma_test_one(const struct rocker *rocker, |
527 | struct rocker_wait *wait, u32 test_type, | |
528 | dma_addr_t dma_handle, const unsigned char *buf, | |
529 | const unsigned char *expect, size_t size) | |
4b8ac966 | 530 | { |
e5054643 | 531 | const struct pci_dev *pdev = rocker->pdev; |
4b8ac966 JP |
532 | int i; |
533 | ||
534 | rocker_wait_reset(wait); | |
535 | rocker_write32(rocker, TEST_DMA_CTRL, test_type); | |
536 | ||
537 | if (!rocker_wait_event_timeout(wait, HZ / 10)) { | |
538 | dev_err(&pdev->dev, "no interrupt received within a timeout\n"); | |
539 | return -EIO; | |
540 | } | |
541 | ||
542 | for (i = 0; i < size; i++) { | |
543 | if (buf[i] != expect[i]) { | |
544 | dev_err(&pdev->dev, "unexpected memory content %02x at byte %x\n, %02x expected", | |
545 | buf[i], i, expect[i]); | |
546 | return -EIO; | |
547 | } | |
548 | } | |
549 | return 0; | |
550 | } | |
551 | ||
552 | #define ROCKER_TEST_DMA_BUF_SIZE (PAGE_SIZE * 4) | |
553 | #define ROCKER_TEST_DMA_FILL_PATTERN 0x96 | |
554 | ||
e5054643 | 555 | static int rocker_dma_test_offset(const struct rocker *rocker, |
4b8ac966 JP |
556 | struct rocker_wait *wait, int offset) |
557 | { | |
558 | struct pci_dev *pdev = rocker->pdev; | |
559 | unsigned char *alloc; | |
560 | unsigned char *buf; | |
561 | unsigned char *expect; | |
562 | dma_addr_t dma_handle; | |
563 | int i; | |
564 | int err; | |
565 | ||
566 | alloc = kzalloc(ROCKER_TEST_DMA_BUF_SIZE * 2 + offset, | |
567 | GFP_KERNEL | GFP_DMA); | |
568 | if (!alloc) | |
569 | return -ENOMEM; | |
570 | buf = alloc + offset; | |
571 | expect = buf + ROCKER_TEST_DMA_BUF_SIZE; | |
572 | ||
573 | dma_handle = pci_map_single(pdev, buf, ROCKER_TEST_DMA_BUF_SIZE, | |
574 | PCI_DMA_BIDIRECTIONAL); | |
575 | if (pci_dma_mapping_error(pdev, dma_handle)) { | |
576 | err = -EIO; | |
577 | goto free_alloc; | |
578 | } | |
579 | ||
580 | rocker_write64(rocker, TEST_DMA_ADDR, dma_handle); | |
581 | rocker_write32(rocker, TEST_DMA_SIZE, ROCKER_TEST_DMA_BUF_SIZE); | |
582 | ||
583 | memset(expect, ROCKER_TEST_DMA_FILL_PATTERN, ROCKER_TEST_DMA_BUF_SIZE); | |
584 | err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_FILL, | |
585 | dma_handle, buf, expect, | |
586 | ROCKER_TEST_DMA_BUF_SIZE); | |
587 | if (err) | |
588 | goto unmap; | |
589 | ||
590 | memset(expect, 0, ROCKER_TEST_DMA_BUF_SIZE); | |
591 | err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_CLEAR, | |
592 | dma_handle, buf, expect, | |
593 | ROCKER_TEST_DMA_BUF_SIZE); | |
594 | if (err) | |
595 | goto unmap; | |
596 | ||
597 | prandom_bytes(buf, ROCKER_TEST_DMA_BUF_SIZE); | |
598 | for (i = 0; i < ROCKER_TEST_DMA_BUF_SIZE; i++) | |
599 | expect[i] = ~buf[i]; | |
600 | err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_INVERT, | |
601 | dma_handle, buf, expect, | |
602 | ROCKER_TEST_DMA_BUF_SIZE); | |
603 | if (err) | |
604 | goto unmap; | |
605 | ||
606 | unmap: | |
607 | pci_unmap_single(pdev, dma_handle, ROCKER_TEST_DMA_BUF_SIZE, | |
608 | PCI_DMA_BIDIRECTIONAL); | |
609 | free_alloc: | |
610 | kfree(alloc); | |
611 | ||
612 | return err; | |
613 | } | |
614 | ||
e5054643 SH |
615 | static int rocker_dma_test(const struct rocker *rocker, |
616 | struct rocker_wait *wait) | |
4b8ac966 JP |
617 | { |
618 | int i; | |
619 | int err; | |
620 | ||
621 | for (i = 0; i < 8; i++) { | |
622 | err = rocker_dma_test_offset(rocker, wait, i); | |
623 | if (err) | |
624 | return err; | |
625 | } | |
626 | return 0; | |
627 | } | |
628 | ||
629 | static irqreturn_t rocker_test_irq_handler(int irq, void *dev_id) | |
630 | { | |
631 | struct rocker_wait *wait = dev_id; | |
632 | ||
633 | rocker_wait_wake_up(wait); | |
634 | ||
635 | return IRQ_HANDLED; | |
636 | } | |
637 | ||
e5054643 | 638 | static int rocker_basic_hw_test(const struct rocker *rocker) |
4b8ac966 | 639 | { |
e5054643 | 640 | const struct pci_dev *pdev = rocker->pdev; |
4b8ac966 JP |
641 | struct rocker_wait wait; |
642 | int err; | |
643 | ||
644 | err = rocker_reg_test(rocker); | |
645 | if (err) { | |
646 | dev_err(&pdev->dev, "reg test failed\n"); | |
647 | return err; | |
648 | } | |
649 | ||
650 | err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_TEST), | |
651 | rocker_test_irq_handler, 0, | |
652 | rocker_driver_name, &wait); | |
653 | if (err) { | |
654 | dev_err(&pdev->dev, "cannot assign test irq\n"); | |
655 | return err; | |
656 | } | |
657 | ||
658 | rocker_wait_init(&wait); | |
659 | rocker_write32(rocker, TEST_IRQ, ROCKER_MSIX_VEC_TEST); | |
660 | ||
661 | if (!rocker_wait_event_timeout(&wait, HZ / 10)) { | |
662 | dev_err(&pdev->dev, "no interrupt received within a timeout\n"); | |
663 | err = -EIO; | |
664 | goto free_irq; | |
665 | } | |
666 | ||
667 | err = rocker_dma_test(rocker, &wait); | |
668 | if (err) | |
669 | dev_err(&pdev->dev, "dma test failed\n"); | |
670 | ||
671 | free_irq: | |
672 | free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_TEST), &wait); | |
673 | return err; | |
674 | } | |
675 | ||
676 | /****** | |
677 | * TLV | |
678 | ******/ | |
679 | ||
680 | #define ROCKER_TLV_ALIGNTO 8U | |
681 | #define ROCKER_TLV_ALIGN(len) \ | |
682 | (((len) + ROCKER_TLV_ALIGNTO - 1) & ~(ROCKER_TLV_ALIGNTO - 1)) | |
683 | #define ROCKER_TLV_HDRLEN ROCKER_TLV_ALIGN(sizeof(struct rocker_tlv)) | |
684 | ||
685 | /* <------- ROCKER_TLV_HDRLEN -------> <--- ROCKER_TLV_ALIGN(payload) ---> | |
686 | * +-----------------------------+- - -+- - - - - - - - - - - - - - -+- - -+ | |
687 | * | Header | Pad | Payload | Pad | | |
688 | * | (struct rocker_tlv) | ing | | ing | | |
689 | * +-----------------------------+- - -+- - - - - - - - - - - - - - -+- - -+ | |
690 | * <--------------------------- tlv->len --------------------------> | |
691 | */ | |
692 | ||
693 | static struct rocker_tlv *rocker_tlv_next(const struct rocker_tlv *tlv, | |
694 | int *remaining) | |
695 | { | |
696 | int totlen = ROCKER_TLV_ALIGN(tlv->len); | |
697 | ||
698 | *remaining -= totlen; | |
699 | return (struct rocker_tlv *) ((char *) tlv + totlen); | |
700 | } | |
701 | ||
702 | static int rocker_tlv_ok(const struct rocker_tlv *tlv, int remaining) | |
703 | { | |
704 | return remaining >= (int) ROCKER_TLV_HDRLEN && | |
705 | tlv->len >= ROCKER_TLV_HDRLEN && | |
706 | tlv->len <= remaining; | |
707 | } | |
708 | ||
709 | #define rocker_tlv_for_each(pos, head, len, rem) \ | |
710 | for (pos = head, rem = len; \ | |
711 | rocker_tlv_ok(pos, rem); \ | |
712 | pos = rocker_tlv_next(pos, &(rem))) | |
713 | ||
714 | #define rocker_tlv_for_each_nested(pos, tlv, rem) \ | |
715 | rocker_tlv_for_each(pos, rocker_tlv_data(tlv), \ | |
716 | rocker_tlv_len(tlv), rem) | |
717 | ||
718 | static int rocker_tlv_attr_size(int payload) | |
719 | { | |
720 | return ROCKER_TLV_HDRLEN + payload; | |
721 | } | |
722 | ||
723 | static int rocker_tlv_total_size(int payload) | |
724 | { | |
725 | return ROCKER_TLV_ALIGN(rocker_tlv_attr_size(payload)); | |
726 | } | |
727 | ||
728 | static int rocker_tlv_padlen(int payload) | |
729 | { | |
730 | return rocker_tlv_total_size(payload) - rocker_tlv_attr_size(payload); | |
731 | } | |
732 | ||
733 | static int rocker_tlv_type(const struct rocker_tlv *tlv) | |
734 | { | |
735 | return tlv->type; | |
736 | } | |
737 | ||
738 | static void *rocker_tlv_data(const struct rocker_tlv *tlv) | |
739 | { | |
740 | return (char *) tlv + ROCKER_TLV_HDRLEN; | |
741 | } | |
742 | ||
743 | static int rocker_tlv_len(const struct rocker_tlv *tlv) | |
744 | { | |
745 | return tlv->len - ROCKER_TLV_HDRLEN; | |
746 | } | |
747 | ||
748 | static u8 rocker_tlv_get_u8(const struct rocker_tlv *tlv) | |
749 | { | |
750 | return *(u8 *) rocker_tlv_data(tlv); | |
751 | } | |
752 | ||
753 | static u16 rocker_tlv_get_u16(const struct rocker_tlv *tlv) | |
754 | { | |
755 | return *(u16 *) rocker_tlv_data(tlv); | |
756 | } | |
757 | ||
9b03c71f JP |
758 | static __be16 rocker_tlv_get_be16(const struct rocker_tlv *tlv) |
759 | { | |
760 | return *(__be16 *) rocker_tlv_data(tlv); | |
761 | } | |
762 | ||
4b8ac966 JP |
763 | static u32 rocker_tlv_get_u32(const struct rocker_tlv *tlv) |
764 | { | |
765 | return *(u32 *) rocker_tlv_data(tlv); | |
766 | } | |
767 | ||
768 | static u64 rocker_tlv_get_u64(const struct rocker_tlv *tlv) | |
769 | { | |
770 | return *(u64 *) rocker_tlv_data(tlv); | |
771 | } | |
772 | ||
e5054643 | 773 | static void rocker_tlv_parse(const struct rocker_tlv **tb, int maxtype, |
4b8ac966 JP |
774 | const char *buf, int buf_len) |
775 | { | |
776 | const struct rocker_tlv *tlv; | |
777 | const struct rocker_tlv *head = (const struct rocker_tlv *) buf; | |
778 | int rem; | |
779 | ||
780 | memset(tb, 0, sizeof(struct rocker_tlv *) * (maxtype + 1)); | |
781 | ||
782 | rocker_tlv_for_each(tlv, head, buf_len, rem) { | |
783 | u32 type = rocker_tlv_type(tlv); | |
784 | ||
785 | if (type > 0 && type <= maxtype) | |
e5054643 | 786 | tb[type] = tlv; |
4b8ac966 JP |
787 | } |
788 | } | |
789 | ||
e5054643 | 790 | static void rocker_tlv_parse_nested(const struct rocker_tlv **tb, int maxtype, |
4b8ac966 JP |
791 | const struct rocker_tlv *tlv) |
792 | { | |
793 | rocker_tlv_parse(tb, maxtype, rocker_tlv_data(tlv), | |
794 | rocker_tlv_len(tlv)); | |
795 | } | |
796 | ||
e5054643 SH |
797 | static void rocker_tlv_parse_desc(const struct rocker_tlv **tb, int maxtype, |
798 | const struct rocker_desc_info *desc_info) | |
4b8ac966 JP |
799 | { |
800 | rocker_tlv_parse(tb, maxtype, desc_info->data, | |
801 | desc_info->desc->tlv_size); | |
802 | } | |
803 | ||
804 | static struct rocker_tlv *rocker_tlv_start(struct rocker_desc_info *desc_info) | |
805 | { | |
806 | return (struct rocker_tlv *) ((char *) desc_info->data + | |
807 | desc_info->tlv_size); | |
808 | } | |
809 | ||
810 | static int rocker_tlv_put(struct rocker_desc_info *desc_info, | |
811 | int attrtype, int attrlen, const void *data) | |
812 | { | |
813 | int tail_room = desc_info->data_size - desc_info->tlv_size; | |
814 | int total_size = rocker_tlv_total_size(attrlen); | |
815 | struct rocker_tlv *tlv; | |
816 | ||
817 | if (unlikely(tail_room < total_size)) | |
818 | return -EMSGSIZE; | |
819 | ||
820 | tlv = rocker_tlv_start(desc_info); | |
821 | desc_info->tlv_size += total_size; | |
822 | tlv->type = attrtype; | |
823 | tlv->len = rocker_tlv_attr_size(attrlen); | |
824 | memcpy(rocker_tlv_data(tlv), data, attrlen); | |
825 | memset((char *) tlv + tlv->len, 0, rocker_tlv_padlen(attrlen)); | |
826 | return 0; | |
827 | } | |
828 | ||
829 | static int rocker_tlv_put_u8(struct rocker_desc_info *desc_info, | |
830 | int attrtype, u8 value) | |
831 | { | |
832 | return rocker_tlv_put(desc_info, attrtype, sizeof(u8), &value); | |
833 | } | |
834 | ||
835 | static int rocker_tlv_put_u16(struct rocker_desc_info *desc_info, | |
836 | int attrtype, u16 value) | |
837 | { | |
838 | return rocker_tlv_put(desc_info, attrtype, sizeof(u16), &value); | |
839 | } | |
840 | ||
9b03c71f JP |
841 | static int rocker_tlv_put_be16(struct rocker_desc_info *desc_info, |
842 | int attrtype, __be16 value) | |
843 | { | |
844 | return rocker_tlv_put(desc_info, attrtype, sizeof(__be16), &value); | |
845 | } | |
846 | ||
4b8ac966 JP |
847 | static int rocker_tlv_put_u32(struct rocker_desc_info *desc_info, |
848 | int attrtype, u32 value) | |
849 | { | |
850 | return rocker_tlv_put(desc_info, attrtype, sizeof(u32), &value); | |
851 | } | |
852 | ||
9b03c71f JP |
853 | static int rocker_tlv_put_be32(struct rocker_desc_info *desc_info, |
854 | int attrtype, __be32 value) | |
855 | { | |
856 | return rocker_tlv_put(desc_info, attrtype, sizeof(__be32), &value); | |
857 | } | |
858 | ||
4b8ac966 JP |
859 | static int rocker_tlv_put_u64(struct rocker_desc_info *desc_info, |
860 | int attrtype, u64 value) | |
861 | { | |
862 | return rocker_tlv_put(desc_info, attrtype, sizeof(u64), &value); | |
863 | } | |
864 | ||
865 | static struct rocker_tlv * | |
866 | rocker_tlv_nest_start(struct rocker_desc_info *desc_info, int attrtype) | |
867 | { | |
868 | struct rocker_tlv *start = rocker_tlv_start(desc_info); | |
869 | ||
870 | if (rocker_tlv_put(desc_info, attrtype, 0, NULL) < 0) | |
871 | return NULL; | |
872 | ||
873 | return start; | |
874 | } | |
875 | ||
876 | static void rocker_tlv_nest_end(struct rocker_desc_info *desc_info, | |
877 | struct rocker_tlv *start) | |
878 | { | |
879 | start->len = (char *) rocker_tlv_start(desc_info) - (char *) start; | |
880 | } | |
881 | ||
882 | static void rocker_tlv_nest_cancel(struct rocker_desc_info *desc_info, | |
e5054643 | 883 | const struct rocker_tlv *start) |
4b8ac966 | 884 | { |
e5054643 | 885 | desc_info->tlv_size = (const char *) start - desc_info->data; |
4b8ac966 JP |
886 | } |
887 | ||
888 | /****************************************** | |
889 | * DMA rings and descriptors manipulations | |
890 | ******************************************/ | |
891 | ||
892 | static u32 __pos_inc(u32 pos, size_t limit) | |
893 | { | |
894 | return ++pos == limit ? 0 : pos; | |
895 | } | |
896 | ||
e5054643 | 897 | static int rocker_desc_err(const struct rocker_desc_info *desc_info) |
4b8ac966 | 898 | { |
7eb344f8 SF |
899 | int err = desc_info->desc->comp_err & ~ROCKER_DMA_DESC_COMP_ERR_GEN; |
900 | ||
901 | switch (err) { | |
902 | case ROCKER_OK: | |
903 | return 0; | |
904 | case -ROCKER_ENOENT: | |
905 | return -ENOENT; | |
906 | case -ROCKER_ENXIO: | |
907 | return -ENXIO; | |
908 | case -ROCKER_ENOMEM: | |
909 | return -ENOMEM; | |
910 | case -ROCKER_EEXIST: | |
911 | return -EEXIST; | |
912 | case -ROCKER_EINVAL: | |
913 | return -EINVAL; | |
914 | case -ROCKER_EMSGSIZE: | |
915 | return -EMSGSIZE; | |
916 | case -ROCKER_ENOTSUP: | |
917 | return -EOPNOTSUPP; | |
918 | case -ROCKER_ENOBUFS: | |
919 | return -ENOBUFS; | |
920 | } | |
921 | ||
922 | return -EINVAL; | |
4b8ac966 JP |
923 | } |
924 | ||
e5054643 | 925 | static void rocker_desc_gen_clear(const struct rocker_desc_info *desc_info) |
4b8ac966 JP |
926 | { |
927 | desc_info->desc->comp_err &= ~ROCKER_DMA_DESC_COMP_ERR_GEN; | |
928 | } | |
929 | ||
e5054643 | 930 | static bool rocker_desc_gen(const struct rocker_desc_info *desc_info) |
4b8ac966 JP |
931 | { |
932 | u32 comp_err = desc_info->desc->comp_err; | |
933 | ||
934 | return comp_err & ROCKER_DMA_DESC_COMP_ERR_GEN ? true : false; | |
935 | } | |
936 | ||
e5054643 | 937 | static void *rocker_desc_cookie_ptr_get(const struct rocker_desc_info *desc_info) |
4b8ac966 | 938 | { |
adedf37b | 939 | return (void *)(uintptr_t)desc_info->desc->cookie; |
4b8ac966 JP |
940 | } |
941 | ||
e5054643 | 942 | static void rocker_desc_cookie_ptr_set(const struct rocker_desc_info *desc_info, |
4b8ac966 JP |
943 | void *ptr) |
944 | { | |
adedf37b | 945 | desc_info->desc->cookie = (uintptr_t) ptr; |
4b8ac966 JP |
946 | } |
947 | ||
948 | static struct rocker_desc_info * | |
e5054643 | 949 | rocker_desc_head_get(const struct rocker_dma_ring_info *info) |
4b8ac966 JP |
950 | { |
951 | static struct rocker_desc_info *desc_info; | |
952 | u32 head = __pos_inc(info->head, info->size); | |
953 | ||
954 | desc_info = &info->desc_info[info->head]; | |
955 | if (head == info->tail) | |
956 | return NULL; /* ring full */ | |
957 | desc_info->tlv_size = 0; | |
958 | return desc_info; | |
959 | } | |
960 | ||
e5054643 | 961 | static void rocker_desc_commit(const struct rocker_desc_info *desc_info) |
4b8ac966 JP |
962 | { |
963 | desc_info->desc->buf_size = desc_info->data_size; | |
964 | desc_info->desc->tlv_size = desc_info->tlv_size; | |
965 | } | |
966 | ||
e5054643 | 967 | static void rocker_desc_head_set(const struct rocker *rocker, |
4b8ac966 | 968 | struct rocker_dma_ring_info *info, |
e5054643 | 969 | const struct rocker_desc_info *desc_info) |
4b8ac966 JP |
970 | { |
971 | u32 head = __pos_inc(info->head, info->size); | |
972 | ||
973 | BUG_ON(head == info->tail); | |
974 | rocker_desc_commit(desc_info); | |
975 | info->head = head; | |
976 | rocker_write32(rocker, DMA_DESC_HEAD(info->type), head); | |
977 | } | |
978 | ||
979 | static struct rocker_desc_info * | |
980 | rocker_desc_tail_get(struct rocker_dma_ring_info *info) | |
981 | { | |
982 | static struct rocker_desc_info *desc_info; | |
983 | ||
984 | if (info->tail == info->head) | |
985 | return NULL; /* nothing to be done between head and tail */ | |
986 | desc_info = &info->desc_info[info->tail]; | |
987 | if (!rocker_desc_gen(desc_info)) | |
988 | return NULL; /* gen bit not set, desc is not ready yet */ | |
989 | info->tail = __pos_inc(info->tail, info->size); | |
990 | desc_info->tlv_size = desc_info->desc->tlv_size; | |
991 | return desc_info; | |
992 | } | |
993 | ||
e5054643 SH |
994 | static void rocker_dma_ring_credits_set(const struct rocker *rocker, |
995 | const struct rocker_dma_ring_info *info, | |
4b8ac966 JP |
996 | u32 credits) |
997 | { | |
998 | if (credits) | |
999 | rocker_write32(rocker, DMA_DESC_CREDITS(info->type), credits); | |
1000 | } | |
1001 | ||
1002 | static unsigned long rocker_dma_ring_size_fix(size_t size) | |
1003 | { | |
1004 | return max(ROCKER_DMA_SIZE_MIN, | |
1005 | min(roundup_pow_of_two(size), ROCKER_DMA_SIZE_MAX)); | |
1006 | } | |
1007 | ||
e5054643 | 1008 | static int rocker_dma_ring_create(const struct rocker *rocker, |
4b8ac966 JP |
1009 | unsigned int type, |
1010 | size_t size, | |
1011 | struct rocker_dma_ring_info *info) | |
1012 | { | |
1013 | int i; | |
1014 | ||
1015 | BUG_ON(size != rocker_dma_ring_size_fix(size)); | |
1016 | info->size = size; | |
1017 | info->type = type; | |
1018 | info->head = 0; | |
1019 | info->tail = 0; | |
1020 | info->desc_info = kcalloc(info->size, sizeof(*info->desc_info), | |
1021 | GFP_KERNEL); | |
1022 | if (!info->desc_info) | |
1023 | return -ENOMEM; | |
1024 | ||
1025 | info->desc = pci_alloc_consistent(rocker->pdev, | |
1026 | info->size * sizeof(*info->desc), | |
1027 | &info->mapaddr); | |
1028 | if (!info->desc) { | |
1029 | kfree(info->desc_info); | |
1030 | return -ENOMEM; | |
1031 | } | |
1032 | ||
1033 | for (i = 0; i < info->size; i++) | |
1034 | info->desc_info[i].desc = &info->desc[i]; | |
1035 | ||
1036 | rocker_write32(rocker, DMA_DESC_CTRL(info->type), | |
1037 | ROCKER_DMA_DESC_CTRL_RESET); | |
1038 | rocker_write64(rocker, DMA_DESC_ADDR(info->type), info->mapaddr); | |
1039 | rocker_write32(rocker, DMA_DESC_SIZE(info->type), info->size); | |
1040 | ||
1041 | return 0; | |
1042 | } | |
1043 | ||
e5054643 SH |
1044 | static void rocker_dma_ring_destroy(const struct rocker *rocker, |
1045 | const struct rocker_dma_ring_info *info) | |
4b8ac966 JP |
1046 | { |
1047 | rocker_write64(rocker, DMA_DESC_ADDR(info->type), 0); | |
1048 | ||
1049 | pci_free_consistent(rocker->pdev, | |
1050 | info->size * sizeof(struct rocker_desc), | |
1051 | info->desc, info->mapaddr); | |
1052 | kfree(info->desc_info); | |
1053 | } | |
1054 | ||
e5054643 | 1055 | static void rocker_dma_ring_pass_to_producer(const struct rocker *rocker, |
4b8ac966 JP |
1056 | struct rocker_dma_ring_info *info) |
1057 | { | |
1058 | int i; | |
1059 | ||
1060 | BUG_ON(info->head || info->tail); | |
1061 | ||
1062 | /* When ring is consumer, we need to advance head for each desc. | |
1063 | * That tells hw that the desc is ready to be used by it. | |
1064 | */ | |
1065 | for (i = 0; i < info->size - 1; i++) | |
1066 | rocker_desc_head_set(rocker, info, &info->desc_info[i]); | |
1067 | rocker_desc_commit(&info->desc_info[i]); | |
1068 | } | |
1069 | ||
e5054643 SH |
1070 | static int rocker_dma_ring_bufs_alloc(const struct rocker *rocker, |
1071 | const struct rocker_dma_ring_info *info, | |
4b8ac966 JP |
1072 | int direction, size_t buf_size) |
1073 | { | |
1074 | struct pci_dev *pdev = rocker->pdev; | |
1075 | int i; | |
1076 | int err; | |
1077 | ||
1078 | for (i = 0; i < info->size; i++) { | |
1079 | struct rocker_desc_info *desc_info = &info->desc_info[i]; | |
1080 | struct rocker_desc *desc = &info->desc[i]; | |
1081 | dma_addr_t dma_handle; | |
1082 | char *buf; | |
1083 | ||
1084 | buf = kzalloc(buf_size, GFP_KERNEL | GFP_DMA); | |
1085 | if (!buf) { | |
1086 | err = -ENOMEM; | |
1087 | goto rollback; | |
1088 | } | |
1089 | ||
1090 | dma_handle = pci_map_single(pdev, buf, buf_size, direction); | |
1091 | if (pci_dma_mapping_error(pdev, dma_handle)) { | |
1092 | kfree(buf); | |
1093 | err = -EIO; | |
1094 | goto rollback; | |
1095 | } | |
1096 | ||
1097 | desc_info->data = buf; | |
1098 | desc_info->data_size = buf_size; | |
1099 | dma_unmap_addr_set(desc_info, mapaddr, dma_handle); | |
1100 | ||
1101 | desc->buf_addr = dma_handle; | |
1102 | desc->buf_size = buf_size; | |
1103 | } | |
1104 | return 0; | |
1105 | ||
1106 | rollback: | |
1107 | for (i--; i >= 0; i--) { | |
e5054643 | 1108 | const struct rocker_desc_info *desc_info = &info->desc_info[i]; |
4b8ac966 JP |
1109 | |
1110 | pci_unmap_single(pdev, dma_unmap_addr(desc_info, mapaddr), | |
1111 | desc_info->data_size, direction); | |
1112 | kfree(desc_info->data); | |
1113 | } | |
1114 | return err; | |
1115 | } | |
1116 | ||
e5054643 SH |
1117 | static void rocker_dma_ring_bufs_free(const struct rocker *rocker, |
1118 | const struct rocker_dma_ring_info *info, | |
4b8ac966 JP |
1119 | int direction) |
1120 | { | |
1121 | struct pci_dev *pdev = rocker->pdev; | |
1122 | int i; | |
1123 | ||
1124 | for (i = 0; i < info->size; i++) { | |
e5054643 | 1125 | const struct rocker_desc_info *desc_info = &info->desc_info[i]; |
4b8ac966 JP |
1126 | struct rocker_desc *desc = &info->desc[i]; |
1127 | ||
1128 | desc->buf_addr = 0; | |
1129 | desc->buf_size = 0; | |
1130 | pci_unmap_single(pdev, dma_unmap_addr(desc_info, mapaddr), | |
1131 | desc_info->data_size, direction); | |
1132 | kfree(desc_info->data); | |
1133 | } | |
1134 | } | |
1135 | ||
1136 | static int rocker_dma_rings_init(struct rocker *rocker) | |
1137 | { | |
e5054643 | 1138 | const struct pci_dev *pdev = rocker->pdev; |
4b8ac966 JP |
1139 | int err; |
1140 | ||
1141 | err = rocker_dma_ring_create(rocker, ROCKER_DMA_CMD, | |
1142 | ROCKER_DMA_CMD_DEFAULT_SIZE, | |
1143 | &rocker->cmd_ring); | |
1144 | if (err) { | |
1145 | dev_err(&pdev->dev, "failed to create command dma ring\n"); | |
1146 | return err; | |
1147 | } | |
1148 | ||
1149 | spin_lock_init(&rocker->cmd_ring_lock); | |
1150 | ||
1151 | err = rocker_dma_ring_bufs_alloc(rocker, &rocker->cmd_ring, | |
1152 | PCI_DMA_BIDIRECTIONAL, PAGE_SIZE); | |
1153 | if (err) { | |
1154 | dev_err(&pdev->dev, "failed to alloc command dma ring buffers\n"); | |
1155 | goto err_dma_cmd_ring_bufs_alloc; | |
1156 | } | |
1157 | ||
1158 | err = rocker_dma_ring_create(rocker, ROCKER_DMA_EVENT, | |
1159 | ROCKER_DMA_EVENT_DEFAULT_SIZE, | |
1160 | &rocker->event_ring); | |
1161 | if (err) { | |
1162 | dev_err(&pdev->dev, "failed to create event dma ring\n"); | |
1163 | goto err_dma_event_ring_create; | |
1164 | } | |
1165 | ||
1166 | err = rocker_dma_ring_bufs_alloc(rocker, &rocker->event_ring, | |
1167 | PCI_DMA_FROMDEVICE, PAGE_SIZE); | |
1168 | if (err) { | |
1169 | dev_err(&pdev->dev, "failed to alloc event dma ring buffers\n"); | |
1170 | goto err_dma_event_ring_bufs_alloc; | |
1171 | } | |
1172 | rocker_dma_ring_pass_to_producer(rocker, &rocker->event_ring); | |
1173 | return 0; | |
1174 | ||
1175 | err_dma_event_ring_bufs_alloc: | |
1176 | rocker_dma_ring_destroy(rocker, &rocker->event_ring); | |
1177 | err_dma_event_ring_create: | |
1178 | rocker_dma_ring_bufs_free(rocker, &rocker->cmd_ring, | |
1179 | PCI_DMA_BIDIRECTIONAL); | |
1180 | err_dma_cmd_ring_bufs_alloc: | |
1181 | rocker_dma_ring_destroy(rocker, &rocker->cmd_ring); | |
1182 | return err; | |
1183 | } | |
1184 | ||
1185 | static void rocker_dma_rings_fini(struct rocker *rocker) | |
1186 | { | |
1187 | rocker_dma_ring_bufs_free(rocker, &rocker->event_ring, | |
1188 | PCI_DMA_BIDIRECTIONAL); | |
1189 | rocker_dma_ring_destroy(rocker, &rocker->event_ring); | |
1190 | rocker_dma_ring_bufs_free(rocker, &rocker->cmd_ring, | |
1191 | PCI_DMA_BIDIRECTIONAL); | |
1192 | rocker_dma_ring_destroy(rocker, &rocker->cmd_ring); | |
1193 | } | |
1194 | ||
534ba6a8 | 1195 | static int rocker_dma_rx_ring_skb_map(const struct rocker_port *rocker_port, |
4b8ac966 JP |
1196 | struct rocker_desc_info *desc_info, |
1197 | struct sk_buff *skb, size_t buf_len) | |
1198 | { | |
534ba6a8 | 1199 | const struct rocker *rocker = rocker_port->rocker; |
4b8ac966 JP |
1200 | struct pci_dev *pdev = rocker->pdev; |
1201 | dma_addr_t dma_handle; | |
1202 | ||
1203 | dma_handle = pci_map_single(pdev, skb->data, buf_len, | |
1204 | PCI_DMA_FROMDEVICE); | |
1205 | if (pci_dma_mapping_error(pdev, dma_handle)) | |
1206 | return -EIO; | |
1207 | if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_RX_FRAG_ADDR, dma_handle)) | |
1208 | goto tlv_put_failure; | |
1209 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_RX_FRAG_MAX_LEN, buf_len)) | |
1210 | goto tlv_put_failure; | |
1211 | return 0; | |
1212 | ||
1213 | tlv_put_failure: | |
1214 | pci_unmap_single(pdev, dma_handle, buf_len, PCI_DMA_FROMDEVICE); | |
1215 | desc_info->tlv_size = 0; | |
1216 | return -EMSGSIZE; | |
1217 | } | |
1218 | ||
e5054643 | 1219 | static size_t rocker_port_rx_buf_len(const struct rocker_port *rocker_port) |
4b8ac966 JP |
1220 | { |
1221 | return rocker_port->dev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN; | |
1222 | } | |
1223 | ||
534ba6a8 | 1224 | static int rocker_dma_rx_ring_skb_alloc(const struct rocker_port *rocker_port, |
4b8ac966 JP |
1225 | struct rocker_desc_info *desc_info) |
1226 | { | |
1227 | struct net_device *dev = rocker_port->dev; | |
1228 | struct sk_buff *skb; | |
1229 | size_t buf_len = rocker_port_rx_buf_len(rocker_port); | |
1230 | int err; | |
1231 | ||
1232 | /* Ensure that hw will see tlv_size zero in case of an error. | |
1233 | * That tells hw to use another descriptor. | |
1234 | */ | |
1235 | rocker_desc_cookie_ptr_set(desc_info, NULL); | |
1236 | desc_info->tlv_size = 0; | |
1237 | ||
1238 | skb = netdev_alloc_skb_ip_align(dev, buf_len); | |
1239 | if (!skb) | |
1240 | return -ENOMEM; | |
534ba6a8 | 1241 | err = rocker_dma_rx_ring_skb_map(rocker_port, desc_info, skb, buf_len); |
4b8ac966 JP |
1242 | if (err) { |
1243 | dev_kfree_skb_any(skb); | |
1244 | return err; | |
1245 | } | |
1246 | rocker_desc_cookie_ptr_set(desc_info, skb); | |
1247 | return 0; | |
1248 | } | |
1249 | ||
e5054643 SH |
1250 | static void rocker_dma_rx_ring_skb_unmap(const struct rocker *rocker, |
1251 | const struct rocker_tlv **attrs) | |
4b8ac966 JP |
1252 | { |
1253 | struct pci_dev *pdev = rocker->pdev; | |
1254 | dma_addr_t dma_handle; | |
1255 | size_t len; | |
1256 | ||
1257 | if (!attrs[ROCKER_TLV_RX_FRAG_ADDR] || | |
1258 | !attrs[ROCKER_TLV_RX_FRAG_MAX_LEN]) | |
1259 | return; | |
1260 | dma_handle = rocker_tlv_get_u64(attrs[ROCKER_TLV_RX_FRAG_ADDR]); | |
1261 | len = rocker_tlv_get_u16(attrs[ROCKER_TLV_RX_FRAG_MAX_LEN]); | |
1262 | pci_unmap_single(pdev, dma_handle, len, PCI_DMA_FROMDEVICE); | |
1263 | } | |
1264 | ||
e5054643 SH |
1265 | static void rocker_dma_rx_ring_skb_free(const struct rocker *rocker, |
1266 | const struct rocker_desc_info *desc_info) | |
4b8ac966 | 1267 | { |
e5054643 | 1268 | const struct rocker_tlv *attrs[ROCKER_TLV_RX_MAX + 1]; |
4b8ac966 JP |
1269 | struct sk_buff *skb = rocker_desc_cookie_ptr_get(desc_info); |
1270 | ||
1271 | if (!skb) | |
1272 | return; | |
1273 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_RX_MAX, desc_info); | |
1274 | rocker_dma_rx_ring_skb_unmap(rocker, attrs); | |
1275 | dev_kfree_skb_any(skb); | |
1276 | } | |
1277 | ||
534ba6a8 | 1278 | static int rocker_dma_rx_ring_skbs_alloc(const struct rocker_port *rocker_port) |
4b8ac966 | 1279 | { |
e5054643 | 1280 | const struct rocker_dma_ring_info *rx_ring = &rocker_port->rx_ring; |
534ba6a8 | 1281 | const struct rocker *rocker = rocker_port->rocker; |
4b8ac966 JP |
1282 | int i; |
1283 | int err; | |
1284 | ||
1285 | for (i = 0; i < rx_ring->size; i++) { | |
534ba6a8 | 1286 | err = rocker_dma_rx_ring_skb_alloc(rocker_port, |
4b8ac966 JP |
1287 | &rx_ring->desc_info[i]); |
1288 | if (err) | |
1289 | goto rollback; | |
1290 | } | |
1291 | return 0; | |
1292 | ||
1293 | rollback: | |
1294 | for (i--; i >= 0; i--) | |
1295 | rocker_dma_rx_ring_skb_free(rocker, &rx_ring->desc_info[i]); | |
1296 | return err; | |
1297 | } | |
1298 | ||
534ba6a8 | 1299 | static void rocker_dma_rx_ring_skbs_free(const struct rocker_port *rocker_port) |
4b8ac966 | 1300 | { |
e5054643 | 1301 | const struct rocker_dma_ring_info *rx_ring = &rocker_port->rx_ring; |
534ba6a8 | 1302 | const struct rocker *rocker = rocker_port->rocker; |
4b8ac966 JP |
1303 | int i; |
1304 | ||
1305 | for (i = 0; i < rx_ring->size; i++) | |
1306 | rocker_dma_rx_ring_skb_free(rocker, &rx_ring->desc_info[i]); | |
1307 | } | |
1308 | ||
1309 | static int rocker_port_dma_rings_init(struct rocker_port *rocker_port) | |
1310 | { | |
1311 | struct rocker *rocker = rocker_port->rocker; | |
1312 | int err; | |
1313 | ||
1314 | err = rocker_dma_ring_create(rocker, | |
1315 | ROCKER_DMA_TX(rocker_port->port_number), | |
1316 | ROCKER_DMA_TX_DEFAULT_SIZE, | |
1317 | &rocker_port->tx_ring); | |
1318 | if (err) { | |
1319 | netdev_err(rocker_port->dev, "failed to create tx dma ring\n"); | |
1320 | return err; | |
1321 | } | |
1322 | ||
1323 | err = rocker_dma_ring_bufs_alloc(rocker, &rocker_port->tx_ring, | |
1324 | PCI_DMA_TODEVICE, | |
1325 | ROCKER_DMA_TX_DESC_SIZE); | |
1326 | if (err) { | |
1327 | netdev_err(rocker_port->dev, "failed to alloc tx dma ring buffers\n"); | |
1328 | goto err_dma_tx_ring_bufs_alloc; | |
1329 | } | |
1330 | ||
1331 | err = rocker_dma_ring_create(rocker, | |
1332 | ROCKER_DMA_RX(rocker_port->port_number), | |
1333 | ROCKER_DMA_RX_DEFAULT_SIZE, | |
1334 | &rocker_port->rx_ring); | |
1335 | if (err) { | |
1336 | netdev_err(rocker_port->dev, "failed to create rx dma ring\n"); | |
1337 | goto err_dma_rx_ring_create; | |
1338 | } | |
1339 | ||
1340 | err = rocker_dma_ring_bufs_alloc(rocker, &rocker_port->rx_ring, | |
1341 | PCI_DMA_BIDIRECTIONAL, | |
1342 | ROCKER_DMA_RX_DESC_SIZE); | |
1343 | if (err) { | |
1344 | netdev_err(rocker_port->dev, "failed to alloc rx dma ring buffers\n"); | |
1345 | goto err_dma_rx_ring_bufs_alloc; | |
1346 | } | |
1347 | ||
534ba6a8 | 1348 | err = rocker_dma_rx_ring_skbs_alloc(rocker_port); |
4b8ac966 JP |
1349 | if (err) { |
1350 | netdev_err(rocker_port->dev, "failed to alloc rx dma ring skbs\n"); | |
1351 | goto err_dma_rx_ring_skbs_alloc; | |
1352 | } | |
1353 | rocker_dma_ring_pass_to_producer(rocker, &rocker_port->rx_ring); | |
1354 | ||
1355 | return 0; | |
1356 | ||
1357 | err_dma_rx_ring_skbs_alloc: | |
1358 | rocker_dma_ring_bufs_free(rocker, &rocker_port->rx_ring, | |
1359 | PCI_DMA_BIDIRECTIONAL); | |
1360 | err_dma_rx_ring_bufs_alloc: | |
1361 | rocker_dma_ring_destroy(rocker, &rocker_port->rx_ring); | |
1362 | err_dma_rx_ring_create: | |
1363 | rocker_dma_ring_bufs_free(rocker, &rocker_port->tx_ring, | |
1364 | PCI_DMA_TODEVICE); | |
1365 | err_dma_tx_ring_bufs_alloc: | |
1366 | rocker_dma_ring_destroy(rocker, &rocker_port->tx_ring); | |
1367 | return err; | |
1368 | } | |
1369 | ||
1370 | static void rocker_port_dma_rings_fini(struct rocker_port *rocker_port) | |
1371 | { | |
1372 | struct rocker *rocker = rocker_port->rocker; | |
1373 | ||
534ba6a8 | 1374 | rocker_dma_rx_ring_skbs_free(rocker_port); |
4b8ac966 JP |
1375 | rocker_dma_ring_bufs_free(rocker, &rocker_port->rx_ring, |
1376 | PCI_DMA_BIDIRECTIONAL); | |
1377 | rocker_dma_ring_destroy(rocker, &rocker_port->rx_ring); | |
1378 | rocker_dma_ring_bufs_free(rocker, &rocker_port->tx_ring, | |
1379 | PCI_DMA_TODEVICE); | |
1380 | rocker_dma_ring_destroy(rocker, &rocker_port->tx_ring); | |
1381 | } | |
1382 | ||
e5054643 SH |
1383 | static void rocker_port_set_enable(const struct rocker_port *rocker_port, |
1384 | bool enable) | |
4b8ac966 JP |
1385 | { |
1386 | u64 val = rocker_read64(rocker_port->rocker, PORT_PHYS_ENABLE); | |
1387 | ||
1388 | if (enable) | |
71a83a6d | 1389 | val |= 1ULL << rocker_port->pport; |
4b8ac966 | 1390 | else |
71a83a6d | 1391 | val &= ~(1ULL << rocker_port->pport); |
4b8ac966 JP |
1392 | rocker_write64(rocker_port->rocker, PORT_PHYS_ENABLE, val); |
1393 | } | |
1394 | ||
1395 | /******************************** | |
1396 | * Interrupt handler and helpers | |
1397 | ********************************/ | |
1398 | ||
1399 | static irqreturn_t rocker_cmd_irq_handler(int irq, void *dev_id) | |
1400 | { | |
1401 | struct rocker *rocker = dev_id; | |
e5054643 | 1402 | const struct rocker_desc_info *desc_info; |
4b8ac966 JP |
1403 | struct rocker_wait *wait; |
1404 | u32 credits = 0; | |
1405 | ||
1406 | spin_lock(&rocker->cmd_ring_lock); | |
1407 | while ((desc_info = rocker_desc_tail_get(&rocker->cmd_ring))) { | |
1408 | wait = rocker_desc_cookie_ptr_get(desc_info); | |
179f9a25 SF |
1409 | if (wait->nowait) { |
1410 | rocker_desc_gen_clear(desc_info); | |
1411 | rocker_wait_destroy(SWITCHDEV_TRANS_NONE, wait); | |
1412 | } else { | |
1413 | rocker_wait_wake_up(wait); | |
1414 | } | |
4b8ac966 JP |
1415 | credits++; |
1416 | } | |
1417 | spin_unlock(&rocker->cmd_ring_lock); | |
1418 | rocker_dma_ring_credits_set(rocker, &rocker->cmd_ring, credits); | |
1419 | ||
1420 | return IRQ_HANDLED; | |
1421 | } | |
1422 | ||
e5054643 | 1423 | static void rocker_port_link_up(const struct rocker_port *rocker_port) |
4b8ac966 JP |
1424 | { |
1425 | netif_carrier_on(rocker_port->dev); | |
1426 | netdev_info(rocker_port->dev, "Link is up\n"); | |
1427 | } | |
1428 | ||
e5054643 | 1429 | static void rocker_port_link_down(const struct rocker_port *rocker_port) |
4b8ac966 JP |
1430 | { |
1431 | netif_carrier_off(rocker_port->dev); | |
1432 | netdev_info(rocker_port->dev, "Link is down\n"); | |
1433 | } | |
1434 | ||
e5054643 | 1435 | static int rocker_event_link_change(const struct rocker *rocker, |
4b8ac966 JP |
1436 | const struct rocker_tlv *info) |
1437 | { | |
e5054643 | 1438 | const struct rocker_tlv *attrs[ROCKER_TLV_EVENT_LINK_CHANGED_MAX + 1]; |
4b8ac966 JP |
1439 | unsigned int port_number; |
1440 | bool link_up; | |
1441 | struct rocker_port *rocker_port; | |
1442 | ||
1443 | rocker_tlv_parse_nested(attrs, ROCKER_TLV_EVENT_LINK_CHANGED_MAX, info); | |
4a6bb6d3 | 1444 | if (!attrs[ROCKER_TLV_EVENT_LINK_CHANGED_PPORT] || |
4b8ac966 JP |
1445 | !attrs[ROCKER_TLV_EVENT_LINK_CHANGED_LINKUP]) |
1446 | return -EIO; | |
1447 | port_number = | |
4a6bb6d3 | 1448 | rocker_tlv_get_u32(attrs[ROCKER_TLV_EVENT_LINK_CHANGED_PPORT]) - 1; |
4b8ac966 JP |
1449 | link_up = rocker_tlv_get_u8(attrs[ROCKER_TLV_EVENT_LINK_CHANGED_LINKUP]); |
1450 | ||
1451 | if (port_number >= rocker->port_count) | |
1452 | return -EINVAL; | |
1453 | ||
1454 | rocker_port = rocker->ports[port_number]; | |
1455 | if (netif_carrier_ok(rocker_port->dev) != link_up) { | |
1456 | if (link_up) | |
1457 | rocker_port_link_up(rocker_port); | |
1458 | else | |
1459 | rocker_port_link_down(rocker_port); | |
1460 | } | |
1461 | ||
1462 | return 0; | |
1463 | } | |
1464 | ||
6c707945 | 1465 | static int rocker_port_fdb(struct rocker_port *rocker_port, |
c4f20321 | 1466 | enum switchdev_trans trans, |
6c707945 SF |
1467 | const unsigned char *addr, |
1468 | __be16 vlan_id, int flags); | |
1469 | ||
e5054643 | 1470 | static int rocker_event_mac_vlan_seen(const struct rocker *rocker, |
6c707945 SF |
1471 | const struct rocker_tlv *info) |
1472 | { | |
e5054643 | 1473 | const struct rocker_tlv *attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAX + 1]; |
6c707945 SF |
1474 | unsigned int port_number; |
1475 | struct rocker_port *rocker_port; | |
e5054643 | 1476 | const unsigned char *addr; |
92014b97 | 1477 | int flags = ROCKER_OP_FLAG_NOWAIT | ROCKER_OP_FLAG_LEARNED; |
6c707945 SF |
1478 | __be16 vlan_id; |
1479 | ||
1480 | rocker_tlv_parse_nested(attrs, ROCKER_TLV_EVENT_MAC_VLAN_MAX, info); | |
4a6bb6d3 | 1481 | if (!attrs[ROCKER_TLV_EVENT_MAC_VLAN_PPORT] || |
6c707945 SF |
1482 | !attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAC] || |
1483 | !attrs[ROCKER_TLV_EVENT_MAC_VLAN_VLAN_ID]) | |
1484 | return -EIO; | |
1485 | port_number = | |
4a6bb6d3 | 1486 | rocker_tlv_get_u32(attrs[ROCKER_TLV_EVENT_MAC_VLAN_PPORT]) - 1; |
6c707945 | 1487 | addr = rocker_tlv_data(attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAC]); |
9b03c71f | 1488 | vlan_id = rocker_tlv_get_be16(attrs[ROCKER_TLV_EVENT_MAC_VLAN_VLAN_ID]); |
6c707945 SF |
1489 | |
1490 | if (port_number >= rocker->port_count) | |
1491 | return -EINVAL; | |
1492 | ||
1493 | rocker_port = rocker->ports[port_number]; | |
1494 | ||
1495 | if (rocker_port->stp_state != BR_STATE_LEARNING && | |
1496 | rocker_port->stp_state != BR_STATE_FORWARDING) | |
1497 | return 0; | |
1498 | ||
92014b97 SF |
1499 | return rocker_port_fdb(rocker_port, SWITCHDEV_TRANS_NONE, |
1500 | addr, vlan_id, flags); | |
6c707945 | 1501 | } |
9f6bbf7c | 1502 | |
e5054643 SH |
1503 | static int rocker_event_process(const struct rocker *rocker, |
1504 | const struct rocker_desc_info *desc_info) | |
4b8ac966 | 1505 | { |
e5054643 SH |
1506 | const struct rocker_tlv *attrs[ROCKER_TLV_EVENT_MAX + 1]; |
1507 | const struct rocker_tlv *info; | |
4b8ac966 JP |
1508 | u16 type; |
1509 | ||
1510 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_EVENT_MAX, desc_info); | |
1511 | if (!attrs[ROCKER_TLV_EVENT_TYPE] || | |
1512 | !attrs[ROCKER_TLV_EVENT_INFO]) | |
1513 | return -EIO; | |
1514 | ||
1515 | type = rocker_tlv_get_u16(attrs[ROCKER_TLV_EVENT_TYPE]); | |
1516 | info = attrs[ROCKER_TLV_EVENT_INFO]; | |
1517 | ||
1518 | switch (type) { | |
1519 | case ROCKER_TLV_EVENT_TYPE_LINK_CHANGED: | |
1520 | return rocker_event_link_change(rocker, info); | |
6c707945 SF |
1521 | case ROCKER_TLV_EVENT_TYPE_MAC_VLAN_SEEN: |
1522 | return rocker_event_mac_vlan_seen(rocker, info); | |
4b8ac966 JP |
1523 | } |
1524 | ||
1525 | return -EOPNOTSUPP; | |
1526 | } | |
1527 | ||
1528 | static irqreturn_t rocker_event_irq_handler(int irq, void *dev_id) | |
1529 | { | |
1530 | struct rocker *rocker = dev_id; | |
e5054643 SH |
1531 | const struct pci_dev *pdev = rocker->pdev; |
1532 | const struct rocker_desc_info *desc_info; | |
4b8ac966 JP |
1533 | u32 credits = 0; |
1534 | int err; | |
1535 | ||
1536 | while ((desc_info = rocker_desc_tail_get(&rocker->event_ring))) { | |
1537 | err = rocker_desc_err(desc_info); | |
1538 | if (err) { | |
1539 | dev_err(&pdev->dev, "event desc received with err %d\n", | |
1540 | err); | |
1541 | } else { | |
1542 | err = rocker_event_process(rocker, desc_info); | |
1543 | if (err) | |
1544 | dev_err(&pdev->dev, "event processing failed with err %d\n", | |
1545 | err); | |
1546 | } | |
1547 | rocker_desc_gen_clear(desc_info); | |
1548 | rocker_desc_head_set(rocker, &rocker->event_ring, desc_info); | |
1549 | credits++; | |
1550 | } | |
1551 | rocker_dma_ring_credits_set(rocker, &rocker->event_ring, credits); | |
1552 | ||
1553 | return IRQ_HANDLED; | |
1554 | } | |
1555 | ||
1556 | static irqreturn_t rocker_tx_irq_handler(int irq, void *dev_id) | |
1557 | { | |
1558 | struct rocker_port *rocker_port = dev_id; | |
1559 | ||
1560 | napi_schedule(&rocker_port->napi_tx); | |
1561 | return IRQ_HANDLED; | |
1562 | } | |
1563 | ||
1564 | static irqreturn_t rocker_rx_irq_handler(int irq, void *dev_id) | |
1565 | { | |
1566 | struct rocker_port *rocker_port = dev_id; | |
1567 | ||
1568 | napi_schedule(&rocker_port->napi_rx); | |
1569 | return IRQ_HANDLED; | |
1570 | } | |
1571 | ||
1572 | /******************** | |
1573 | * Command interface | |
1574 | ********************/ | |
1575 | ||
534ba6a8 | 1576 | typedef int (*rocker_cmd_prep_cb_t)(const struct rocker_port *rocker_port, |
e5054643 SH |
1577 | struct rocker_desc_info *desc_info, |
1578 | void *priv); | |
1579 | ||
534ba6a8 | 1580 | typedef int (*rocker_cmd_proc_cb_t)(const struct rocker_port *rocker_port, |
e5054643 SH |
1581 | const struct rocker_desc_info *desc_info, |
1582 | void *priv); | |
4b8ac966 | 1583 | |
534ba6a8 | 1584 | static int rocker_cmd_exec(struct rocker_port *rocker_port, |
179f9a25 | 1585 | enum switchdev_trans trans, int flags, |
e5054643 SH |
1586 | rocker_cmd_prep_cb_t prepare, void *prepare_priv, |
1587 | rocker_cmd_proc_cb_t process, void *process_priv) | |
4b8ac966 | 1588 | { |
534ba6a8 | 1589 | struct rocker *rocker = rocker_port->rocker; |
4b8ac966 JP |
1590 | struct rocker_desc_info *desc_info; |
1591 | struct rocker_wait *wait; | |
179f9a25 SF |
1592 | bool nowait = !!(flags & ROCKER_OP_FLAG_NOWAIT); |
1593 | unsigned long lock_flags; | |
4b8ac966 JP |
1594 | int err; |
1595 | ||
179f9a25 | 1596 | wait = rocker_wait_create(rocker_port, trans, flags); |
4b8ac966 JP |
1597 | if (!wait) |
1598 | return -ENOMEM; | |
179f9a25 | 1599 | wait->nowait = nowait; |
4b8ac966 | 1600 | |
179f9a25 | 1601 | spin_lock_irqsave(&rocker->cmd_ring_lock, lock_flags); |
c4f20321 | 1602 | |
4b8ac966 JP |
1603 | desc_info = rocker_desc_head_get(&rocker->cmd_ring); |
1604 | if (!desc_info) { | |
179f9a25 | 1605 | spin_unlock_irqrestore(&rocker->cmd_ring_lock, lock_flags); |
4b8ac966 JP |
1606 | err = -EAGAIN; |
1607 | goto out; | |
1608 | } | |
c4f20321 | 1609 | |
534ba6a8 | 1610 | err = prepare(rocker_port, desc_info, prepare_priv); |
4b8ac966 | 1611 | if (err) { |
179f9a25 | 1612 | spin_unlock_irqrestore(&rocker->cmd_ring_lock, lock_flags); |
4b8ac966 JP |
1613 | goto out; |
1614 | } | |
c4f20321 | 1615 | |
4b8ac966 | 1616 | rocker_desc_cookie_ptr_set(desc_info, wait); |
4b8ac966 | 1617 | |
c4f20321 SF |
1618 | if (trans != SWITCHDEV_TRANS_PREPARE) |
1619 | rocker_desc_head_set(rocker, &rocker->cmd_ring, desc_info); | |
4b8ac966 | 1620 | |
179f9a25 SF |
1621 | spin_unlock_irqrestore(&rocker->cmd_ring_lock, lock_flags); |
1622 | ||
1623 | if (nowait) | |
1624 | return 0; | |
c4f20321 SF |
1625 | |
1626 | if (trans != SWITCHDEV_TRANS_PREPARE) | |
1627 | if (!rocker_wait_event_timeout(wait, HZ / 10)) | |
1628 | return -EIO; | |
4b8ac966 JP |
1629 | |
1630 | err = rocker_desc_err(desc_info); | |
1631 | if (err) | |
1632 | return err; | |
1633 | ||
1634 | if (process) | |
534ba6a8 | 1635 | err = process(rocker_port, desc_info, process_priv); |
4b8ac966 JP |
1636 | |
1637 | rocker_desc_gen_clear(desc_info); | |
1638 | out: | |
0985df73 | 1639 | rocker_wait_destroy(trans, wait); |
4b8ac966 JP |
1640 | return err; |
1641 | } | |
1642 | ||
1643 | static int | |
534ba6a8 | 1644 | rocker_cmd_get_port_settings_prep(const struct rocker_port *rocker_port, |
4b8ac966 JP |
1645 | struct rocker_desc_info *desc_info, |
1646 | void *priv) | |
1647 | { | |
1648 | struct rocker_tlv *cmd_info; | |
1649 | ||
1650 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, | |
1651 | ROCKER_TLV_CMD_TYPE_GET_PORT_SETTINGS)) | |
1652 | return -EMSGSIZE; | |
1653 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
1654 | if (!cmd_info) | |
1655 | return -EMSGSIZE; | |
4a6bb6d3 SF |
1656 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT, |
1657 | rocker_port->pport)) | |
4b8ac966 JP |
1658 | return -EMSGSIZE; |
1659 | rocker_tlv_nest_end(desc_info, cmd_info); | |
1660 | return 0; | |
1661 | } | |
1662 | ||
1663 | static int | |
534ba6a8 | 1664 | rocker_cmd_get_port_settings_ethtool_proc(const struct rocker_port *rocker_port, |
e5054643 | 1665 | const struct rocker_desc_info *desc_info, |
4b8ac966 JP |
1666 | void *priv) |
1667 | { | |
1668 | struct ethtool_cmd *ecmd = priv; | |
e5054643 SH |
1669 | const struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1]; |
1670 | const struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1]; | |
4b8ac966 JP |
1671 | u32 speed; |
1672 | u8 duplex; | |
1673 | u8 autoneg; | |
1674 | ||
1675 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info); | |
1676 | if (!attrs[ROCKER_TLV_CMD_INFO]) | |
1677 | return -EIO; | |
1678 | ||
1679 | rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX, | |
1680 | attrs[ROCKER_TLV_CMD_INFO]); | |
1681 | if (!info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_SPEED] || | |
1682 | !info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX] || | |
1683 | !info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG]) | |
1684 | return -EIO; | |
1685 | ||
1686 | speed = rocker_tlv_get_u32(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_SPEED]); | |
1687 | duplex = rocker_tlv_get_u8(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX]); | |
1688 | autoneg = rocker_tlv_get_u8(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG]); | |
1689 | ||
1690 | ecmd->transceiver = XCVR_INTERNAL; | |
1691 | ecmd->supported = SUPPORTED_TP; | |
1692 | ecmd->phy_address = 0xff; | |
1693 | ecmd->port = PORT_TP; | |
1694 | ethtool_cmd_speed_set(ecmd, speed); | |
1695 | ecmd->duplex = duplex ? DUPLEX_FULL : DUPLEX_HALF; | |
1696 | ecmd->autoneg = autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE; | |
1697 | ||
1698 | return 0; | |
1699 | } | |
1700 | ||
1701 | static int | |
534ba6a8 | 1702 | rocker_cmd_get_port_settings_macaddr_proc(const struct rocker_port *rocker_port, |
e5054643 | 1703 | const struct rocker_desc_info *desc_info, |
4b8ac966 JP |
1704 | void *priv) |
1705 | { | |
1706 | unsigned char *macaddr = priv; | |
e5054643 SH |
1707 | const struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1]; |
1708 | const struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1]; | |
1709 | const struct rocker_tlv *attr; | |
4b8ac966 JP |
1710 | |
1711 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info); | |
1712 | if (!attrs[ROCKER_TLV_CMD_INFO]) | |
1713 | return -EIO; | |
1714 | ||
1715 | rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX, | |
1716 | attrs[ROCKER_TLV_CMD_INFO]); | |
1717 | attr = info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MACADDR]; | |
1718 | if (!attr) | |
1719 | return -EIO; | |
1720 | ||
1721 | if (rocker_tlv_len(attr) != ETH_ALEN) | |
1722 | return -EINVAL; | |
1723 | ||
1724 | ether_addr_copy(macaddr, rocker_tlv_data(attr)); | |
1725 | return 0; | |
1726 | } | |
1727 | ||
db19170b DA |
1728 | struct port_name { |
1729 | char *buf; | |
1730 | size_t len; | |
1731 | }; | |
1732 | ||
1733 | static int | |
534ba6a8 | 1734 | rocker_cmd_get_port_settings_phys_name_proc(const struct rocker_port *rocker_port, |
e5054643 | 1735 | const struct rocker_desc_info *desc_info, |
db19170b DA |
1736 | void *priv) |
1737 | { | |
e5054643 SH |
1738 | const struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1]; |
1739 | const struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1]; | |
db19170b | 1740 | struct port_name *name = priv; |
e5054643 | 1741 | const struct rocker_tlv *attr; |
db19170b | 1742 | size_t i, j, len; |
e5054643 | 1743 | const char *str; |
db19170b DA |
1744 | |
1745 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info); | |
1746 | if (!attrs[ROCKER_TLV_CMD_INFO]) | |
1747 | return -EIO; | |
1748 | ||
1749 | rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX, | |
1750 | attrs[ROCKER_TLV_CMD_INFO]); | |
1751 | attr = info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_PHYS_NAME]; | |
1752 | if (!attr) | |
1753 | return -EIO; | |
1754 | ||
1755 | len = min_t(size_t, rocker_tlv_len(attr), name->len); | |
1756 | str = rocker_tlv_data(attr); | |
1757 | ||
1758 | /* make sure name only contains alphanumeric characters */ | |
1759 | for (i = j = 0; i < len; ++i) { | |
1760 | if (isalnum(str[i])) { | |
1761 | name->buf[j] = str[i]; | |
1762 | j++; | |
1763 | } | |
1764 | } | |
1765 | ||
1766 | if (j == 0) | |
1767 | return -EIO; | |
1768 | ||
1769 | name->buf[j] = '\0'; | |
1770 | ||
1771 | return 0; | |
1772 | } | |
1773 | ||
4b8ac966 | 1774 | static int |
534ba6a8 | 1775 | rocker_cmd_set_port_settings_ethtool_prep(const struct rocker_port *rocker_port, |
4b8ac966 JP |
1776 | struct rocker_desc_info *desc_info, |
1777 | void *priv) | |
1778 | { | |
1779 | struct ethtool_cmd *ecmd = priv; | |
1780 | struct rocker_tlv *cmd_info; | |
1781 | ||
1782 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, | |
1783 | ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS)) | |
1784 | return -EMSGSIZE; | |
1785 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
1786 | if (!cmd_info) | |
1787 | return -EMSGSIZE; | |
4a6bb6d3 SF |
1788 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT, |
1789 | rocker_port->pport)) | |
4b8ac966 JP |
1790 | return -EMSGSIZE; |
1791 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_SPEED, | |
1792 | ethtool_cmd_speed(ecmd))) | |
1793 | return -EMSGSIZE; | |
1794 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX, | |
1795 | ecmd->duplex)) | |
1796 | return -EMSGSIZE; | |
1797 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG, | |
1798 | ecmd->autoneg)) | |
1799 | return -EMSGSIZE; | |
1800 | rocker_tlv_nest_end(desc_info, cmd_info); | |
1801 | return 0; | |
1802 | } | |
1803 | ||
1804 | static int | |
534ba6a8 | 1805 | rocker_cmd_set_port_settings_macaddr_prep(const struct rocker_port *rocker_port, |
4b8ac966 JP |
1806 | struct rocker_desc_info *desc_info, |
1807 | void *priv) | |
1808 | { | |
e5054643 | 1809 | const unsigned char *macaddr = priv; |
4b8ac966 JP |
1810 | struct rocker_tlv *cmd_info; |
1811 | ||
1812 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, | |
1813 | ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS)) | |
1814 | return -EMSGSIZE; | |
1815 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
1816 | if (!cmd_info) | |
1817 | return -EMSGSIZE; | |
4a6bb6d3 SF |
1818 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT, |
1819 | rocker_port->pport)) | |
4b8ac966 JP |
1820 | return -EMSGSIZE; |
1821 | if (rocker_tlv_put(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_MACADDR, | |
1822 | ETH_ALEN, macaddr)) | |
1823 | return -EMSGSIZE; | |
1824 | rocker_tlv_nest_end(desc_info, cmd_info); | |
1825 | return 0; | |
1826 | } | |
1827 | ||
77a58c74 SF |
1828 | static int |
1829 | rocker_cmd_set_port_settings_mtu_prep(const struct rocker_port *rocker_port, | |
1830 | struct rocker_desc_info *desc_info, | |
1831 | void *priv) | |
1832 | { | |
1833 | int mtu = *(int *)priv; | |
1834 | struct rocker_tlv *cmd_info; | |
1835 | ||
1836 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, | |
1837 | ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS)) | |
1838 | return -EMSGSIZE; | |
1839 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
1840 | if (!cmd_info) | |
1841 | return -EMSGSIZE; | |
1842 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT, | |
1843 | rocker_port->pport)) | |
1844 | return -EMSGSIZE; | |
1845 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_MTU, | |
1846 | mtu)) | |
1847 | return -EMSGSIZE; | |
1848 | rocker_tlv_nest_end(desc_info, cmd_info); | |
1849 | return 0; | |
1850 | } | |
1851 | ||
5111f80c | 1852 | static int |
534ba6a8 | 1853 | rocker_cmd_set_port_learning_prep(const struct rocker_port *rocker_port, |
5111f80c SF |
1854 | struct rocker_desc_info *desc_info, |
1855 | void *priv) | |
1856 | { | |
1857 | struct rocker_tlv *cmd_info; | |
1858 | ||
1859 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, | |
1860 | ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS)) | |
1861 | return -EMSGSIZE; | |
1862 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
1863 | if (!cmd_info) | |
1864 | return -EMSGSIZE; | |
4a6bb6d3 SF |
1865 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT, |
1866 | rocker_port->pport)) | |
5111f80c SF |
1867 | return -EMSGSIZE; |
1868 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_LEARNING, | |
1869 | !!(rocker_port->brport_flags & BR_LEARNING))) | |
1870 | return -EMSGSIZE; | |
1871 | rocker_tlv_nest_end(desc_info, cmd_info); | |
1872 | return 0; | |
1873 | } | |
1874 | ||
4b8ac966 JP |
1875 | static int rocker_cmd_get_port_settings_ethtool(struct rocker_port *rocker_port, |
1876 | struct ethtool_cmd *ecmd) | |
1877 | { | |
179f9a25 | 1878 | return rocker_cmd_exec(rocker_port, SWITCHDEV_TRANS_NONE, 0, |
4b8ac966 JP |
1879 | rocker_cmd_get_port_settings_prep, NULL, |
1880 | rocker_cmd_get_port_settings_ethtool_proc, | |
c4f20321 | 1881 | ecmd); |
4b8ac966 JP |
1882 | } |
1883 | ||
1884 | static int rocker_cmd_get_port_settings_macaddr(struct rocker_port *rocker_port, | |
1885 | unsigned char *macaddr) | |
1886 | { | |
179f9a25 | 1887 | return rocker_cmd_exec(rocker_port, SWITCHDEV_TRANS_NONE, 0, |
4b8ac966 JP |
1888 | rocker_cmd_get_port_settings_prep, NULL, |
1889 | rocker_cmd_get_port_settings_macaddr_proc, | |
c4f20321 | 1890 | macaddr); |
4b8ac966 JP |
1891 | } |
1892 | ||
1893 | static int rocker_cmd_set_port_settings_ethtool(struct rocker_port *rocker_port, | |
1894 | struct ethtool_cmd *ecmd) | |
1895 | { | |
179f9a25 | 1896 | return rocker_cmd_exec(rocker_port, SWITCHDEV_TRANS_NONE, 0, |
4b8ac966 | 1897 | rocker_cmd_set_port_settings_ethtool_prep, |
c4f20321 | 1898 | ecmd, NULL, NULL); |
4b8ac966 JP |
1899 | } |
1900 | ||
1901 | static int rocker_cmd_set_port_settings_macaddr(struct rocker_port *rocker_port, | |
1902 | unsigned char *macaddr) | |
1903 | { | |
179f9a25 | 1904 | return rocker_cmd_exec(rocker_port, SWITCHDEV_TRANS_NONE, 0, |
4b8ac966 | 1905 | rocker_cmd_set_port_settings_macaddr_prep, |
c4f20321 | 1906 | macaddr, NULL, NULL); |
4b8ac966 JP |
1907 | } |
1908 | ||
77a58c74 SF |
1909 | static int rocker_cmd_set_port_settings_mtu(struct rocker_port *rocker_port, |
1910 | int mtu) | |
1911 | { | |
1912 | return rocker_cmd_exec(rocker_port, SWITCHDEV_TRANS_NONE, 0, | |
1913 | rocker_cmd_set_port_settings_mtu_prep, | |
1914 | &mtu, NULL, NULL); | |
1915 | } | |
1916 | ||
c4f20321 SF |
1917 | static int rocker_port_set_learning(struct rocker_port *rocker_port, |
1918 | enum switchdev_trans trans) | |
5111f80c | 1919 | { |
179f9a25 | 1920 | return rocker_cmd_exec(rocker_port, trans, 0, |
5111f80c | 1921 | rocker_cmd_set_port_learning_prep, |
c4f20321 | 1922 | NULL, NULL, NULL); |
5111f80c SF |
1923 | } |
1924 | ||
e5054643 SH |
1925 | static int |
1926 | rocker_cmd_flow_tbl_add_ig_port(struct rocker_desc_info *desc_info, | |
1927 | const struct rocker_flow_tbl_entry *entry) | |
9f6bbf7c | 1928 | { |
4a6bb6d3 SF |
1929 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT, |
1930 | entry->key.ig_port.in_pport)) | |
9f6bbf7c | 1931 | return -EMSGSIZE; |
4a6bb6d3 SF |
1932 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK, |
1933 | entry->key.ig_port.in_pport_mask)) | |
9f6bbf7c SF |
1934 | return -EMSGSIZE; |
1935 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID, | |
1936 | entry->key.ig_port.goto_tbl)) | |
1937 | return -EMSGSIZE; | |
1938 | ||
1939 | return 0; | |
1940 | } | |
1941 | ||
e5054643 SH |
1942 | static int |
1943 | rocker_cmd_flow_tbl_add_vlan(struct rocker_desc_info *desc_info, | |
1944 | const struct rocker_flow_tbl_entry *entry) | |
9f6bbf7c | 1945 | { |
4a6bb6d3 SF |
1946 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT, |
1947 | entry->key.vlan.in_pport)) | |
9f6bbf7c | 1948 | return -EMSGSIZE; |
9b03c71f JP |
1949 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, |
1950 | entry->key.vlan.vlan_id)) | |
9f6bbf7c | 1951 | return -EMSGSIZE; |
9b03c71f JP |
1952 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK, |
1953 | entry->key.vlan.vlan_id_mask)) | |
9f6bbf7c SF |
1954 | return -EMSGSIZE; |
1955 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID, | |
1956 | entry->key.vlan.goto_tbl)) | |
1957 | return -EMSGSIZE; | |
1958 | if (entry->key.vlan.untagged && | |
9b03c71f JP |
1959 | rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_NEW_VLAN_ID, |
1960 | entry->key.vlan.new_vlan_id)) | |
9f6bbf7c SF |
1961 | return -EMSGSIZE; |
1962 | ||
1963 | return 0; | |
1964 | } | |
1965 | ||
e5054643 SH |
1966 | static int |
1967 | rocker_cmd_flow_tbl_add_term_mac(struct rocker_desc_info *desc_info, | |
1968 | const struct rocker_flow_tbl_entry *entry) | |
9f6bbf7c | 1969 | { |
4a6bb6d3 SF |
1970 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT, |
1971 | entry->key.term_mac.in_pport)) | |
9f6bbf7c | 1972 | return -EMSGSIZE; |
4a6bb6d3 SF |
1973 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK, |
1974 | entry->key.term_mac.in_pport_mask)) | |
9f6bbf7c | 1975 | return -EMSGSIZE; |
9b03c71f JP |
1976 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE, |
1977 | entry->key.term_mac.eth_type)) | |
9f6bbf7c SF |
1978 | return -EMSGSIZE; |
1979 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC, | |
1980 | ETH_ALEN, entry->key.term_mac.eth_dst)) | |
1981 | return -EMSGSIZE; | |
1982 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK, | |
1983 | ETH_ALEN, entry->key.term_mac.eth_dst_mask)) | |
1984 | return -EMSGSIZE; | |
9b03c71f JP |
1985 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, |
1986 | entry->key.term_mac.vlan_id)) | |
9f6bbf7c | 1987 | return -EMSGSIZE; |
9b03c71f JP |
1988 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK, |
1989 | entry->key.term_mac.vlan_id_mask)) | |
9f6bbf7c SF |
1990 | return -EMSGSIZE; |
1991 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID, | |
1992 | entry->key.term_mac.goto_tbl)) | |
1993 | return -EMSGSIZE; | |
1994 | if (entry->key.term_mac.copy_to_cpu && | |
1995 | rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION, | |
1996 | entry->key.term_mac.copy_to_cpu)) | |
1997 | return -EMSGSIZE; | |
1998 | ||
1999 | return 0; | |
2000 | } | |
2001 | ||
2002 | static int | |
2003 | rocker_cmd_flow_tbl_add_ucast_routing(struct rocker_desc_info *desc_info, | |
e5054643 | 2004 | const struct rocker_flow_tbl_entry *entry) |
9f6bbf7c | 2005 | { |
9b03c71f JP |
2006 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE, |
2007 | entry->key.ucast_routing.eth_type)) | |
9f6bbf7c | 2008 | return -EMSGSIZE; |
9b03c71f JP |
2009 | if (rocker_tlv_put_be32(desc_info, ROCKER_TLV_OF_DPA_DST_IP, |
2010 | entry->key.ucast_routing.dst4)) | |
9f6bbf7c | 2011 | return -EMSGSIZE; |
9b03c71f JP |
2012 | if (rocker_tlv_put_be32(desc_info, ROCKER_TLV_OF_DPA_DST_IP_MASK, |
2013 | entry->key.ucast_routing.dst4_mask)) | |
9f6bbf7c SF |
2014 | return -EMSGSIZE; |
2015 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID, | |
2016 | entry->key.ucast_routing.goto_tbl)) | |
2017 | return -EMSGSIZE; | |
2018 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID, | |
2019 | entry->key.ucast_routing.group_id)) | |
2020 | return -EMSGSIZE; | |
2021 | ||
2022 | return 0; | |
2023 | } | |
2024 | ||
e5054643 SH |
2025 | static int |
2026 | rocker_cmd_flow_tbl_add_bridge(struct rocker_desc_info *desc_info, | |
2027 | const struct rocker_flow_tbl_entry *entry) | |
9f6bbf7c SF |
2028 | { |
2029 | if (entry->key.bridge.has_eth_dst && | |
2030 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC, | |
2031 | ETH_ALEN, entry->key.bridge.eth_dst)) | |
2032 | return -EMSGSIZE; | |
2033 | if (entry->key.bridge.has_eth_dst_mask && | |
2034 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK, | |
2035 | ETH_ALEN, entry->key.bridge.eth_dst_mask)) | |
2036 | return -EMSGSIZE; | |
2037 | if (entry->key.bridge.vlan_id && | |
9b03c71f JP |
2038 | rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, |
2039 | entry->key.bridge.vlan_id)) | |
9f6bbf7c SF |
2040 | return -EMSGSIZE; |
2041 | if (entry->key.bridge.tunnel_id && | |
2042 | rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_TUNNEL_ID, | |
2043 | entry->key.bridge.tunnel_id)) | |
2044 | return -EMSGSIZE; | |
2045 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID, | |
2046 | entry->key.bridge.goto_tbl)) | |
2047 | return -EMSGSIZE; | |
2048 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID, | |
2049 | entry->key.bridge.group_id)) | |
2050 | return -EMSGSIZE; | |
2051 | if (entry->key.bridge.copy_to_cpu && | |
2052 | rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION, | |
2053 | entry->key.bridge.copy_to_cpu)) | |
2054 | return -EMSGSIZE; | |
2055 | ||
2056 | return 0; | |
2057 | } | |
2058 | ||
e5054643 SH |
2059 | static int |
2060 | rocker_cmd_flow_tbl_add_acl(struct rocker_desc_info *desc_info, | |
2061 | const struct rocker_flow_tbl_entry *entry) | |
9f6bbf7c | 2062 | { |
4a6bb6d3 SF |
2063 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT, |
2064 | entry->key.acl.in_pport)) | |
9f6bbf7c | 2065 | return -EMSGSIZE; |
4a6bb6d3 SF |
2066 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK, |
2067 | entry->key.acl.in_pport_mask)) | |
9f6bbf7c SF |
2068 | return -EMSGSIZE; |
2069 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC, | |
2070 | ETH_ALEN, entry->key.acl.eth_src)) | |
2071 | return -EMSGSIZE; | |
2072 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC_MASK, | |
2073 | ETH_ALEN, entry->key.acl.eth_src_mask)) | |
2074 | return -EMSGSIZE; | |
2075 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC, | |
2076 | ETH_ALEN, entry->key.acl.eth_dst)) | |
2077 | return -EMSGSIZE; | |
2078 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK, | |
2079 | ETH_ALEN, entry->key.acl.eth_dst_mask)) | |
2080 | return -EMSGSIZE; | |
9b03c71f JP |
2081 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE, |
2082 | entry->key.acl.eth_type)) | |
9f6bbf7c | 2083 | return -EMSGSIZE; |
9b03c71f JP |
2084 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, |
2085 | entry->key.acl.vlan_id)) | |
9f6bbf7c | 2086 | return -EMSGSIZE; |
9b03c71f JP |
2087 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK, |
2088 | entry->key.acl.vlan_id_mask)) | |
9f6bbf7c SF |
2089 | return -EMSGSIZE; |
2090 | ||
2091 | switch (ntohs(entry->key.acl.eth_type)) { | |
2092 | case ETH_P_IP: | |
2093 | case ETH_P_IPV6: | |
2094 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_PROTO, | |
2095 | entry->key.acl.ip_proto)) | |
2096 | return -EMSGSIZE; | |
2097 | if (rocker_tlv_put_u8(desc_info, | |
2098 | ROCKER_TLV_OF_DPA_IP_PROTO_MASK, | |
2099 | entry->key.acl.ip_proto_mask)) | |
2100 | return -EMSGSIZE; | |
2101 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_DSCP, | |
2102 | entry->key.acl.ip_tos & 0x3f)) | |
2103 | return -EMSGSIZE; | |
2104 | if (rocker_tlv_put_u8(desc_info, | |
2105 | ROCKER_TLV_OF_DPA_IP_DSCP_MASK, | |
2106 | entry->key.acl.ip_tos_mask & 0x3f)) | |
2107 | return -EMSGSIZE; | |
2108 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_ECN, | |
2109 | (entry->key.acl.ip_tos & 0xc0) >> 6)) | |
2110 | return -EMSGSIZE; | |
2111 | if (rocker_tlv_put_u8(desc_info, | |
2112 | ROCKER_TLV_OF_DPA_IP_ECN_MASK, | |
2113 | (entry->key.acl.ip_tos_mask & 0xc0) >> 6)) | |
2114 | return -EMSGSIZE; | |
2115 | break; | |
2116 | } | |
2117 | ||
2118 | if (entry->key.acl.group_id != ROCKER_GROUP_NONE && | |
2119 | rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID, | |
2120 | entry->key.acl.group_id)) | |
2121 | return -EMSGSIZE; | |
2122 | ||
2123 | return 0; | |
2124 | } | |
2125 | ||
534ba6a8 | 2126 | static int rocker_cmd_flow_tbl_add(const struct rocker_port *rocker_port, |
9f6bbf7c SF |
2127 | struct rocker_desc_info *desc_info, |
2128 | void *priv) | |
2129 | { | |
e5054643 | 2130 | const struct rocker_flow_tbl_entry *entry = priv; |
9f6bbf7c SF |
2131 | struct rocker_tlv *cmd_info; |
2132 | int err = 0; | |
2133 | ||
c1beeef7 | 2134 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd)) |
9f6bbf7c SF |
2135 | return -EMSGSIZE; |
2136 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
2137 | if (!cmd_info) | |
2138 | return -EMSGSIZE; | |
2139 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_TABLE_ID, | |
2140 | entry->key.tbl_id)) | |
2141 | return -EMSGSIZE; | |
2142 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_PRIORITY, | |
2143 | entry->key.priority)) | |
2144 | return -EMSGSIZE; | |
2145 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_HARDTIME, 0)) | |
2146 | return -EMSGSIZE; | |
2147 | if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_OF_DPA_COOKIE, | |
2148 | entry->cookie)) | |
2149 | return -EMSGSIZE; | |
2150 | ||
2151 | switch (entry->key.tbl_id) { | |
2152 | case ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT: | |
2153 | err = rocker_cmd_flow_tbl_add_ig_port(desc_info, entry); | |
2154 | break; | |
2155 | case ROCKER_OF_DPA_TABLE_ID_VLAN: | |
2156 | err = rocker_cmd_flow_tbl_add_vlan(desc_info, entry); | |
2157 | break; | |
2158 | case ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC: | |
2159 | err = rocker_cmd_flow_tbl_add_term_mac(desc_info, entry); | |
2160 | break; | |
2161 | case ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING: | |
2162 | err = rocker_cmd_flow_tbl_add_ucast_routing(desc_info, entry); | |
2163 | break; | |
2164 | case ROCKER_OF_DPA_TABLE_ID_BRIDGING: | |
2165 | err = rocker_cmd_flow_tbl_add_bridge(desc_info, entry); | |
2166 | break; | |
2167 | case ROCKER_OF_DPA_TABLE_ID_ACL_POLICY: | |
2168 | err = rocker_cmd_flow_tbl_add_acl(desc_info, entry); | |
2169 | break; | |
2170 | default: | |
2171 | err = -ENOTSUPP; | |
2172 | break; | |
2173 | } | |
2174 | ||
2175 | if (err) | |
2176 | return err; | |
2177 | ||
2178 | rocker_tlv_nest_end(desc_info, cmd_info); | |
2179 | ||
2180 | return 0; | |
2181 | } | |
2182 | ||
534ba6a8 | 2183 | static int rocker_cmd_flow_tbl_del(const struct rocker_port *rocker_port, |
9f6bbf7c SF |
2184 | struct rocker_desc_info *desc_info, |
2185 | void *priv) | |
2186 | { | |
2187 | const struct rocker_flow_tbl_entry *entry = priv; | |
2188 | struct rocker_tlv *cmd_info; | |
2189 | ||
c1beeef7 | 2190 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd)) |
9f6bbf7c SF |
2191 | return -EMSGSIZE; |
2192 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
2193 | if (!cmd_info) | |
2194 | return -EMSGSIZE; | |
2195 | if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_OF_DPA_COOKIE, | |
2196 | entry->cookie)) | |
2197 | return -EMSGSIZE; | |
2198 | rocker_tlv_nest_end(desc_info, cmd_info); | |
2199 | ||
2200 | return 0; | |
2201 | } | |
2202 | ||
2203 | static int | |
2204 | rocker_cmd_group_tbl_add_l2_interface(struct rocker_desc_info *desc_info, | |
2205 | struct rocker_group_tbl_entry *entry) | |
2206 | { | |
4a6bb6d3 | 2207 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_OUT_PPORT, |
9f6bbf7c SF |
2208 | ROCKER_GROUP_PORT_GET(entry->group_id))) |
2209 | return -EMSGSIZE; | |
2210 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_POP_VLAN, | |
2211 | entry->l2_interface.pop_vlan)) | |
2212 | return -EMSGSIZE; | |
2213 | ||
2214 | return 0; | |
2215 | } | |
2216 | ||
2217 | static int | |
2218 | rocker_cmd_group_tbl_add_l2_rewrite(struct rocker_desc_info *desc_info, | |
e5054643 | 2219 | const struct rocker_group_tbl_entry *entry) |
9f6bbf7c SF |
2220 | { |
2221 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER, | |
2222 | entry->l2_rewrite.group_id)) | |
2223 | return -EMSGSIZE; | |
2224 | if (!is_zero_ether_addr(entry->l2_rewrite.eth_src) && | |
2225 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC, | |
2226 | ETH_ALEN, entry->l2_rewrite.eth_src)) | |
2227 | return -EMSGSIZE; | |
2228 | if (!is_zero_ether_addr(entry->l2_rewrite.eth_dst) && | |
2229 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC, | |
2230 | ETH_ALEN, entry->l2_rewrite.eth_dst)) | |
2231 | return -EMSGSIZE; | |
2232 | if (entry->l2_rewrite.vlan_id && | |
9b03c71f JP |
2233 | rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, |
2234 | entry->l2_rewrite.vlan_id)) | |
9f6bbf7c SF |
2235 | return -EMSGSIZE; |
2236 | ||
2237 | return 0; | |
2238 | } | |
2239 | ||
2240 | static int | |
2241 | rocker_cmd_group_tbl_add_group_ids(struct rocker_desc_info *desc_info, | |
e5054643 | 2242 | const struct rocker_group_tbl_entry *entry) |
9f6bbf7c SF |
2243 | { |
2244 | int i; | |
2245 | struct rocker_tlv *group_ids; | |
2246 | ||
2247 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GROUP_COUNT, | |
2248 | entry->group_count)) | |
2249 | return -EMSGSIZE; | |
2250 | ||
2251 | group_ids = rocker_tlv_nest_start(desc_info, | |
2252 | ROCKER_TLV_OF_DPA_GROUP_IDS); | |
2253 | if (!group_ids) | |
2254 | return -EMSGSIZE; | |
2255 | ||
2256 | for (i = 0; i < entry->group_count; i++) | |
2257 | /* Note TLV array is 1-based */ | |
2258 | if (rocker_tlv_put_u32(desc_info, i + 1, entry->group_ids[i])) | |
2259 | return -EMSGSIZE; | |
2260 | ||
2261 | rocker_tlv_nest_end(desc_info, group_ids); | |
2262 | ||
2263 | return 0; | |
2264 | } | |
2265 | ||
2266 | static int | |
2267 | rocker_cmd_group_tbl_add_l3_unicast(struct rocker_desc_info *desc_info, | |
e5054643 | 2268 | const struct rocker_group_tbl_entry *entry) |
9f6bbf7c SF |
2269 | { |
2270 | if (!is_zero_ether_addr(entry->l3_unicast.eth_src) && | |
2271 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC, | |
2272 | ETH_ALEN, entry->l3_unicast.eth_src)) | |
2273 | return -EMSGSIZE; | |
2274 | if (!is_zero_ether_addr(entry->l3_unicast.eth_dst) && | |
2275 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC, | |
2276 | ETH_ALEN, entry->l3_unicast.eth_dst)) | |
2277 | return -EMSGSIZE; | |
2278 | if (entry->l3_unicast.vlan_id && | |
9b03c71f JP |
2279 | rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, |
2280 | entry->l3_unicast.vlan_id)) | |
9f6bbf7c SF |
2281 | return -EMSGSIZE; |
2282 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_TTL_CHECK, | |
2283 | entry->l3_unicast.ttl_check)) | |
2284 | return -EMSGSIZE; | |
2285 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER, | |
2286 | entry->l3_unicast.group_id)) | |
2287 | return -EMSGSIZE; | |
2288 | ||
2289 | return 0; | |
2290 | } | |
2291 | ||
534ba6a8 | 2292 | static int rocker_cmd_group_tbl_add(const struct rocker_port *rocker_port, |
9f6bbf7c SF |
2293 | struct rocker_desc_info *desc_info, |
2294 | void *priv) | |
2295 | { | |
2296 | struct rocker_group_tbl_entry *entry = priv; | |
2297 | struct rocker_tlv *cmd_info; | |
2298 | int err = 0; | |
2299 | ||
2300 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd)) | |
2301 | return -EMSGSIZE; | |
2302 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
2303 | if (!cmd_info) | |
2304 | return -EMSGSIZE; | |
2305 | ||
2306 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID, | |
2307 | entry->group_id)) | |
2308 | return -EMSGSIZE; | |
2309 | ||
2310 | switch (ROCKER_GROUP_TYPE_GET(entry->group_id)) { | |
2311 | case ROCKER_OF_DPA_GROUP_TYPE_L2_INTERFACE: | |
2312 | err = rocker_cmd_group_tbl_add_l2_interface(desc_info, entry); | |
2313 | break; | |
2314 | case ROCKER_OF_DPA_GROUP_TYPE_L2_REWRITE: | |
2315 | err = rocker_cmd_group_tbl_add_l2_rewrite(desc_info, entry); | |
2316 | break; | |
2317 | case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD: | |
2318 | case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST: | |
2319 | err = rocker_cmd_group_tbl_add_group_ids(desc_info, entry); | |
2320 | break; | |
2321 | case ROCKER_OF_DPA_GROUP_TYPE_L3_UCAST: | |
2322 | err = rocker_cmd_group_tbl_add_l3_unicast(desc_info, entry); | |
2323 | break; | |
2324 | default: | |
2325 | err = -ENOTSUPP; | |
2326 | break; | |
2327 | } | |
2328 | ||
2329 | if (err) | |
2330 | return err; | |
2331 | ||
2332 | rocker_tlv_nest_end(desc_info, cmd_info); | |
2333 | ||
2334 | return 0; | |
2335 | } | |
2336 | ||
534ba6a8 | 2337 | static int rocker_cmd_group_tbl_del(const struct rocker_port *rocker_port, |
9f6bbf7c SF |
2338 | struct rocker_desc_info *desc_info, |
2339 | void *priv) | |
2340 | { | |
2341 | const struct rocker_group_tbl_entry *entry = priv; | |
2342 | struct rocker_tlv *cmd_info; | |
2343 | ||
2344 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd)) | |
2345 | return -EMSGSIZE; | |
2346 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
2347 | if (!cmd_info) | |
2348 | return -EMSGSIZE; | |
2349 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID, | |
2350 | entry->group_id)) | |
2351 | return -EMSGSIZE; | |
2352 | rocker_tlv_nest_end(desc_info, cmd_info); | |
2353 | ||
2354 | return 0; | |
2355 | } | |
2356 | ||
c1beeef7 SF |
2357 | /*************************************************** |
2358 | * Flow, group, FDB, internal VLAN and neigh tables | |
2359 | ***************************************************/ | |
9f6bbf7c SF |
2360 | |
2361 | static int rocker_init_tbls(struct rocker *rocker) | |
2362 | { | |
2363 | hash_init(rocker->flow_tbl); | |
2364 | spin_lock_init(&rocker->flow_tbl_lock); | |
2365 | ||
2366 | hash_init(rocker->group_tbl); | |
2367 | spin_lock_init(&rocker->group_tbl_lock); | |
2368 | ||
2369 | hash_init(rocker->fdb_tbl); | |
2370 | spin_lock_init(&rocker->fdb_tbl_lock); | |
2371 | ||
2372 | hash_init(rocker->internal_vlan_tbl); | |
2373 | spin_lock_init(&rocker->internal_vlan_tbl_lock); | |
2374 | ||
c1beeef7 SF |
2375 | hash_init(rocker->neigh_tbl); |
2376 | spin_lock_init(&rocker->neigh_tbl_lock); | |
2377 | ||
9f6bbf7c SF |
2378 | return 0; |
2379 | } | |
2380 | ||
2381 | static void rocker_free_tbls(struct rocker *rocker) | |
2382 | { | |
2383 | unsigned long flags; | |
2384 | struct rocker_flow_tbl_entry *flow_entry; | |
2385 | struct rocker_group_tbl_entry *group_entry; | |
2386 | struct rocker_fdb_tbl_entry *fdb_entry; | |
2387 | struct rocker_internal_vlan_tbl_entry *internal_vlan_entry; | |
c1beeef7 | 2388 | struct rocker_neigh_tbl_entry *neigh_entry; |
9f6bbf7c SF |
2389 | struct hlist_node *tmp; |
2390 | int bkt; | |
2391 | ||
2392 | spin_lock_irqsave(&rocker->flow_tbl_lock, flags); | |
2393 | hash_for_each_safe(rocker->flow_tbl, bkt, tmp, flow_entry, entry) | |
2394 | hash_del(&flow_entry->entry); | |
2395 | spin_unlock_irqrestore(&rocker->flow_tbl_lock, flags); | |
2396 | ||
2397 | spin_lock_irqsave(&rocker->group_tbl_lock, flags); | |
2398 | hash_for_each_safe(rocker->group_tbl, bkt, tmp, group_entry, entry) | |
2399 | hash_del(&group_entry->entry); | |
2400 | spin_unlock_irqrestore(&rocker->group_tbl_lock, flags); | |
2401 | ||
2402 | spin_lock_irqsave(&rocker->fdb_tbl_lock, flags); | |
2403 | hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, fdb_entry, entry) | |
2404 | hash_del(&fdb_entry->entry); | |
2405 | spin_unlock_irqrestore(&rocker->fdb_tbl_lock, flags); | |
2406 | ||
2407 | spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, flags); | |
2408 | hash_for_each_safe(rocker->internal_vlan_tbl, bkt, | |
2409 | tmp, internal_vlan_entry, entry) | |
2410 | hash_del(&internal_vlan_entry->entry); | |
2411 | spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, flags); | |
c1beeef7 SF |
2412 | |
2413 | spin_lock_irqsave(&rocker->neigh_tbl_lock, flags); | |
2414 | hash_for_each_safe(rocker->neigh_tbl, bkt, tmp, neigh_entry, entry) | |
2415 | hash_del(&neigh_entry->entry); | |
2416 | spin_unlock_irqrestore(&rocker->neigh_tbl_lock, flags); | |
9f6bbf7c SF |
2417 | } |
2418 | ||
2419 | static struct rocker_flow_tbl_entry * | |
e5054643 SH |
2420 | rocker_flow_tbl_find(const struct rocker *rocker, |
2421 | const struct rocker_flow_tbl_entry *match) | |
9f6bbf7c SF |
2422 | { |
2423 | struct rocker_flow_tbl_entry *found; | |
c1beeef7 | 2424 | size_t key_len = match->key_len ? match->key_len : sizeof(found->key); |
9f6bbf7c SF |
2425 | |
2426 | hash_for_each_possible(rocker->flow_tbl, found, | |
2427 | entry, match->key_crc32) { | |
c1beeef7 | 2428 | if (memcmp(&found->key, &match->key, key_len) == 0) |
9f6bbf7c SF |
2429 | return found; |
2430 | } | |
2431 | ||
2432 | return NULL; | |
2433 | } | |
2434 | ||
2435 | static int rocker_flow_tbl_add(struct rocker_port *rocker_port, | |
179f9a25 | 2436 | enum switchdev_trans trans, int flags, |
c4f20321 | 2437 | struct rocker_flow_tbl_entry *match) |
9f6bbf7c SF |
2438 | { |
2439 | struct rocker *rocker = rocker_port->rocker; | |
2440 | struct rocker_flow_tbl_entry *found; | |
c1beeef7 | 2441 | size_t key_len = match->key_len ? match->key_len : sizeof(found->key); |
179f9a25 | 2442 | unsigned long lock_flags; |
9f6bbf7c | 2443 | |
c1beeef7 | 2444 | match->key_crc32 = crc32(~0, &match->key, key_len); |
9f6bbf7c | 2445 | |
179f9a25 | 2446 | spin_lock_irqsave(&rocker->flow_tbl_lock, lock_flags); |
9f6bbf7c SF |
2447 | |
2448 | found = rocker_flow_tbl_find(rocker, match); | |
2449 | ||
2450 | if (found) { | |
c1beeef7 | 2451 | match->cookie = found->cookie; |
c4f20321 SF |
2452 | if (trans != SWITCHDEV_TRANS_PREPARE) |
2453 | hash_del(&found->entry); | |
0985df73 | 2454 | rocker_port_kfree(trans, found); |
c1beeef7 SF |
2455 | found = match; |
2456 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_MOD; | |
9f6bbf7c SF |
2457 | } else { |
2458 | found = match; | |
2459 | found->cookie = rocker->flow_tbl_next_cookie++; | |
c1beeef7 | 2460 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_ADD; |
9f6bbf7c SF |
2461 | } |
2462 | ||
c4f20321 SF |
2463 | if (trans != SWITCHDEV_TRANS_PREPARE) |
2464 | hash_add(rocker->flow_tbl, &found->entry, found->key_crc32); | |
9f6bbf7c | 2465 | |
179f9a25 | 2466 | spin_unlock_irqrestore(&rocker->flow_tbl_lock, lock_flags); |
9f6bbf7c | 2467 | |
179f9a25 SF |
2468 | return rocker_cmd_exec(rocker_port, trans, flags, |
2469 | rocker_cmd_flow_tbl_add, found, NULL, NULL); | |
9f6bbf7c SF |
2470 | } |
2471 | ||
2472 | static int rocker_flow_tbl_del(struct rocker_port *rocker_port, | |
179f9a25 | 2473 | enum switchdev_trans trans, int flags, |
c4f20321 | 2474 | struct rocker_flow_tbl_entry *match) |
9f6bbf7c SF |
2475 | { |
2476 | struct rocker *rocker = rocker_port->rocker; | |
2477 | struct rocker_flow_tbl_entry *found; | |
c1beeef7 | 2478 | size_t key_len = match->key_len ? match->key_len : sizeof(found->key); |
179f9a25 | 2479 | unsigned long lock_flags; |
9f6bbf7c SF |
2480 | int err = 0; |
2481 | ||
c1beeef7 | 2482 | match->key_crc32 = crc32(~0, &match->key, key_len); |
9f6bbf7c | 2483 | |
179f9a25 | 2484 | spin_lock_irqsave(&rocker->flow_tbl_lock, lock_flags); |
9f6bbf7c SF |
2485 | |
2486 | found = rocker_flow_tbl_find(rocker, match); | |
2487 | ||
2488 | if (found) { | |
c4f20321 SF |
2489 | if (trans != SWITCHDEV_TRANS_PREPARE) |
2490 | hash_del(&found->entry); | |
c1beeef7 | 2491 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_DEL; |
9f6bbf7c SF |
2492 | } |
2493 | ||
179f9a25 | 2494 | spin_unlock_irqrestore(&rocker->flow_tbl_lock, lock_flags); |
9f6bbf7c | 2495 | |
0985df73 | 2496 | rocker_port_kfree(trans, match); |
9f6bbf7c | 2497 | |
c1beeef7 | 2498 | if (found) { |
179f9a25 | 2499 | err = rocker_cmd_exec(rocker_port, trans, flags, |
9f6bbf7c | 2500 | rocker_cmd_flow_tbl_del, |
c4f20321 | 2501 | found, NULL, NULL); |
0985df73 | 2502 | rocker_port_kfree(trans, found); |
9f6bbf7c SF |
2503 | } |
2504 | ||
2505 | return err; | |
2506 | } | |
2507 | ||
9f6bbf7c | 2508 | static int rocker_flow_tbl_do(struct rocker_port *rocker_port, |
c4f20321 SF |
2509 | enum switchdev_trans trans, int flags, |
2510 | struct rocker_flow_tbl_entry *entry) | |
9f6bbf7c | 2511 | { |
9f6bbf7c | 2512 | if (flags & ROCKER_OP_FLAG_REMOVE) |
179f9a25 | 2513 | return rocker_flow_tbl_del(rocker_port, trans, flags, entry); |
9f6bbf7c | 2514 | else |
179f9a25 | 2515 | return rocker_flow_tbl_add(rocker_port, trans, flags, entry); |
9f6bbf7c SF |
2516 | } |
2517 | ||
2518 | static int rocker_flow_tbl_ig_port(struct rocker_port *rocker_port, | |
c4f20321 SF |
2519 | enum switchdev_trans trans, int flags, |
2520 | u32 in_pport, u32 in_pport_mask, | |
9f6bbf7c SF |
2521 | enum rocker_of_dpa_table_id goto_tbl) |
2522 | { | |
2523 | struct rocker_flow_tbl_entry *entry; | |
2524 | ||
179f9a25 | 2525 | entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry)); |
9f6bbf7c SF |
2526 | if (!entry) |
2527 | return -ENOMEM; | |
2528 | ||
2529 | entry->key.priority = ROCKER_PRIORITY_IG_PORT; | |
2530 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT; | |
4a6bb6d3 SF |
2531 | entry->key.ig_port.in_pport = in_pport; |
2532 | entry->key.ig_port.in_pport_mask = in_pport_mask; | |
9f6bbf7c SF |
2533 | entry->key.ig_port.goto_tbl = goto_tbl; |
2534 | ||
c4f20321 | 2535 | return rocker_flow_tbl_do(rocker_port, trans, flags, entry); |
9f6bbf7c SF |
2536 | } |
2537 | ||
2538 | static int rocker_flow_tbl_vlan(struct rocker_port *rocker_port, | |
c4f20321 SF |
2539 | enum switchdev_trans trans, int flags, |
2540 | u32 in_pport, __be16 vlan_id, | |
2541 | __be16 vlan_id_mask, | |
9f6bbf7c SF |
2542 | enum rocker_of_dpa_table_id goto_tbl, |
2543 | bool untagged, __be16 new_vlan_id) | |
2544 | { | |
2545 | struct rocker_flow_tbl_entry *entry; | |
2546 | ||
179f9a25 | 2547 | entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry)); |
9f6bbf7c SF |
2548 | if (!entry) |
2549 | return -ENOMEM; | |
2550 | ||
2551 | entry->key.priority = ROCKER_PRIORITY_VLAN; | |
2552 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_VLAN; | |
4a6bb6d3 | 2553 | entry->key.vlan.in_pport = in_pport; |
9f6bbf7c SF |
2554 | entry->key.vlan.vlan_id = vlan_id; |
2555 | entry->key.vlan.vlan_id_mask = vlan_id_mask; | |
2556 | entry->key.vlan.goto_tbl = goto_tbl; | |
2557 | ||
2558 | entry->key.vlan.untagged = untagged; | |
2559 | entry->key.vlan.new_vlan_id = new_vlan_id; | |
2560 | ||
c4f20321 | 2561 | return rocker_flow_tbl_do(rocker_port, trans, flags, entry); |
9f6bbf7c SF |
2562 | } |
2563 | ||
2564 | static int rocker_flow_tbl_term_mac(struct rocker_port *rocker_port, | |
c4f20321 | 2565 | enum switchdev_trans trans, |
4a6bb6d3 | 2566 | u32 in_pport, u32 in_pport_mask, |
9f6bbf7c SF |
2567 | __be16 eth_type, const u8 *eth_dst, |
2568 | const u8 *eth_dst_mask, __be16 vlan_id, | |
2569 | __be16 vlan_id_mask, bool copy_to_cpu, | |
2570 | int flags) | |
2571 | { | |
2572 | struct rocker_flow_tbl_entry *entry; | |
2573 | ||
179f9a25 | 2574 | entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry)); |
9f6bbf7c SF |
2575 | if (!entry) |
2576 | return -ENOMEM; | |
2577 | ||
2578 | if (is_multicast_ether_addr(eth_dst)) { | |
2579 | entry->key.priority = ROCKER_PRIORITY_TERM_MAC_MCAST; | |
2580 | entry->key.term_mac.goto_tbl = | |
2581 | ROCKER_OF_DPA_TABLE_ID_MULTICAST_ROUTING; | |
2582 | } else { | |
2583 | entry->key.priority = ROCKER_PRIORITY_TERM_MAC_UCAST; | |
2584 | entry->key.term_mac.goto_tbl = | |
2585 | ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING; | |
2586 | } | |
2587 | ||
2588 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC; | |
4a6bb6d3 SF |
2589 | entry->key.term_mac.in_pport = in_pport; |
2590 | entry->key.term_mac.in_pport_mask = in_pport_mask; | |
9f6bbf7c SF |
2591 | entry->key.term_mac.eth_type = eth_type; |
2592 | ether_addr_copy(entry->key.term_mac.eth_dst, eth_dst); | |
2593 | ether_addr_copy(entry->key.term_mac.eth_dst_mask, eth_dst_mask); | |
2594 | entry->key.term_mac.vlan_id = vlan_id; | |
2595 | entry->key.term_mac.vlan_id_mask = vlan_id_mask; | |
2596 | entry->key.term_mac.copy_to_cpu = copy_to_cpu; | |
2597 | ||
c4f20321 | 2598 | return rocker_flow_tbl_do(rocker_port, trans, flags, entry); |
9f6bbf7c SF |
2599 | } |
2600 | ||
2601 | static int rocker_flow_tbl_bridge(struct rocker_port *rocker_port, | |
c4f20321 | 2602 | enum switchdev_trans trans, int flags, |
9f6bbf7c SF |
2603 | const u8 *eth_dst, const u8 *eth_dst_mask, |
2604 | __be16 vlan_id, u32 tunnel_id, | |
2605 | enum rocker_of_dpa_table_id goto_tbl, | |
2606 | u32 group_id, bool copy_to_cpu) | |
2607 | { | |
2608 | struct rocker_flow_tbl_entry *entry; | |
2609 | u32 priority; | |
2610 | bool vlan_bridging = !!vlan_id; | |
2611 | bool dflt = !eth_dst || (eth_dst && eth_dst_mask); | |
2612 | bool wild = false; | |
2613 | ||
179f9a25 | 2614 | entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry)); |
9f6bbf7c SF |
2615 | if (!entry) |
2616 | return -ENOMEM; | |
2617 | ||
2618 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_BRIDGING; | |
2619 | ||
2620 | if (eth_dst) { | |
2621 | entry->key.bridge.has_eth_dst = 1; | |
2622 | ether_addr_copy(entry->key.bridge.eth_dst, eth_dst); | |
2623 | } | |
2624 | if (eth_dst_mask) { | |
2625 | entry->key.bridge.has_eth_dst_mask = 1; | |
2626 | ether_addr_copy(entry->key.bridge.eth_dst_mask, eth_dst_mask); | |
629161f6 | 2627 | if (!ether_addr_equal(eth_dst_mask, ff_mac)) |
9f6bbf7c SF |
2628 | wild = true; |
2629 | } | |
2630 | ||
2631 | priority = ROCKER_PRIORITY_UNKNOWN; | |
51ace887 | 2632 | if (vlan_bridging && dflt && wild) |
9f6bbf7c | 2633 | priority = ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_WILD; |
51ace887 | 2634 | else if (vlan_bridging && dflt && !wild) |
9f6bbf7c | 2635 | priority = ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_EXACT; |
51ace887 | 2636 | else if (vlan_bridging && !dflt) |
9f6bbf7c | 2637 | priority = ROCKER_PRIORITY_BRIDGING_VLAN; |
51ace887 | 2638 | else if (!vlan_bridging && dflt && wild) |
9f6bbf7c | 2639 | priority = ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_WILD; |
51ace887 | 2640 | else if (!vlan_bridging && dflt && !wild) |
9f6bbf7c | 2641 | priority = ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_EXACT; |
51ace887 | 2642 | else if (!vlan_bridging && !dflt) |
9f6bbf7c SF |
2643 | priority = ROCKER_PRIORITY_BRIDGING_TENANT; |
2644 | ||
2645 | entry->key.priority = priority; | |
2646 | entry->key.bridge.vlan_id = vlan_id; | |
2647 | entry->key.bridge.tunnel_id = tunnel_id; | |
2648 | entry->key.bridge.goto_tbl = goto_tbl; | |
2649 | entry->key.bridge.group_id = group_id; | |
2650 | entry->key.bridge.copy_to_cpu = copy_to_cpu; | |
2651 | ||
c4f20321 | 2652 | return rocker_flow_tbl_do(rocker_port, trans, flags, entry); |
9f6bbf7c SF |
2653 | } |
2654 | ||
c1beeef7 | 2655 | static int rocker_flow_tbl_ucast4_routing(struct rocker_port *rocker_port, |
c4f20321 | 2656 | enum switchdev_trans trans, |
c1beeef7 SF |
2657 | __be16 eth_type, __be32 dst, |
2658 | __be32 dst_mask, u32 priority, | |
2659 | enum rocker_of_dpa_table_id goto_tbl, | |
2660 | u32 group_id, int flags) | |
2661 | { | |
2662 | struct rocker_flow_tbl_entry *entry; | |
2663 | ||
179f9a25 | 2664 | entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry)); |
c1beeef7 SF |
2665 | if (!entry) |
2666 | return -ENOMEM; | |
2667 | ||
2668 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING; | |
2669 | entry->key.priority = priority; | |
2670 | entry->key.ucast_routing.eth_type = eth_type; | |
2671 | entry->key.ucast_routing.dst4 = dst; | |
2672 | entry->key.ucast_routing.dst4_mask = dst_mask; | |
2673 | entry->key.ucast_routing.goto_tbl = goto_tbl; | |
2674 | entry->key.ucast_routing.group_id = group_id; | |
2675 | entry->key_len = offsetof(struct rocker_flow_tbl_key, | |
2676 | ucast_routing.group_id); | |
2677 | ||
c4f20321 | 2678 | return rocker_flow_tbl_do(rocker_port, trans, flags, entry); |
c1beeef7 SF |
2679 | } |
2680 | ||
9f6bbf7c | 2681 | static int rocker_flow_tbl_acl(struct rocker_port *rocker_port, |
c4f20321 SF |
2682 | enum switchdev_trans trans, int flags, |
2683 | u32 in_pport, u32 in_pport_mask, | |
9f6bbf7c SF |
2684 | const u8 *eth_src, const u8 *eth_src_mask, |
2685 | const u8 *eth_dst, const u8 *eth_dst_mask, | |
c4f20321 SF |
2686 | __be16 eth_type, __be16 vlan_id, |
2687 | __be16 vlan_id_mask, u8 ip_proto, | |
2688 | u8 ip_proto_mask, u8 ip_tos, u8 ip_tos_mask, | |
9f6bbf7c SF |
2689 | u32 group_id) |
2690 | { | |
2691 | u32 priority; | |
2692 | struct rocker_flow_tbl_entry *entry; | |
2693 | ||
179f9a25 | 2694 | entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry)); |
9f6bbf7c SF |
2695 | if (!entry) |
2696 | return -ENOMEM; | |
2697 | ||
2698 | priority = ROCKER_PRIORITY_ACL_NORMAL; | |
2699 | if (eth_dst && eth_dst_mask) { | |
629161f6 | 2700 | if (ether_addr_equal(eth_dst_mask, mcast_mac)) |
9f6bbf7c SF |
2701 | priority = ROCKER_PRIORITY_ACL_DFLT; |
2702 | else if (is_link_local_ether_addr(eth_dst)) | |
2703 | priority = ROCKER_PRIORITY_ACL_CTRL; | |
2704 | } | |
2705 | ||
2706 | entry->key.priority = priority; | |
2707 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_ACL_POLICY; | |
4a6bb6d3 SF |
2708 | entry->key.acl.in_pport = in_pport; |
2709 | entry->key.acl.in_pport_mask = in_pport_mask; | |
9f6bbf7c SF |
2710 | |
2711 | if (eth_src) | |
2712 | ether_addr_copy(entry->key.acl.eth_src, eth_src); | |
2713 | if (eth_src_mask) | |
2714 | ether_addr_copy(entry->key.acl.eth_src_mask, eth_src_mask); | |
2715 | if (eth_dst) | |
2716 | ether_addr_copy(entry->key.acl.eth_dst, eth_dst); | |
2717 | if (eth_dst_mask) | |
2718 | ether_addr_copy(entry->key.acl.eth_dst_mask, eth_dst_mask); | |
2719 | ||
2720 | entry->key.acl.eth_type = eth_type; | |
2721 | entry->key.acl.vlan_id = vlan_id; | |
2722 | entry->key.acl.vlan_id_mask = vlan_id_mask; | |
2723 | entry->key.acl.ip_proto = ip_proto; | |
2724 | entry->key.acl.ip_proto_mask = ip_proto_mask; | |
2725 | entry->key.acl.ip_tos = ip_tos; | |
2726 | entry->key.acl.ip_tos_mask = ip_tos_mask; | |
2727 | entry->key.acl.group_id = group_id; | |
2728 | ||
c4f20321 | 2729 | return rocker_flow_tbl_do(rocker_port, trans, flags, entry); |
9f6bbf7c SF |
2730 | } |
2731 | ||
2732 | static struct rocker_group_tbl_entry * | |
e5054643 SH |
2733 | rocker_group_tbl_find(const struct rocker *rocker, |
2734 | const struct rocker_group_tbl_entry *match) | |
9f6bbf7c SF |
2735 | { |
2736 | struct rocker_group_tbl_entry *found; | |
2737 | ||
2738 | hash_for_each_possible(rocker->group_tbl, found, | |
2739 | entry, match->group_id) { | |
2740 | if (found->group_id == match->group_id) | |
2741 | return found; | |
2742 | } | |
2743 | ||
2744 | return NULL; | |
2745 | } | |
2746 | ||
0985df73 | 2747 | static void rocker_group_tbl_entry_free(enum switchdev_trans trans, |
c4f20321 | 2748 | struct rocker_group_tbl_entry *entry) |
9f6bbf7c SF |
2749 | { |
2750 | switch (ROCKER_GROUP_TYPE_GET(entry->group_id)) { | |
2751 | case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD: | |
2752 | case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST: | |
0985df73 | 2753 | rocker_port_kfree(trans, entry->group_ids); |
9f6bbf7c SF |
2754 | break; |
2755 | default: | |
2756 | break; | |
2757 | } | |
0985df73 | 2758 | rocker_port_kfree(trans, entry); |
9f6bbf7c SF |
2759 | } |
2760 | ||
2761 | static int rocker_group_tbl_add(struct rocker_port *rocker_port, | |
179f9a25 | 2762 | enum switchdev_trans trans, int flags, |
c4f20321 | 2763 | struct rocker_group_tbl_entry *match) |
9f6bbf7c SF |
2764 | { |
2765 | struct rocker *rocker = rocker_port->rocker; | |
2766 | struct rocker_group_tbl_entry *found; | |
179f9a25 | 2767 | unsigned long lock_flags; |
9f6bbf7c | 2768 | |
179f9a25 | 2769 | spin_lock_irqsave(&rocker->group_tbl_lock, lock_flags); |
9f6bbf7c SF |
2770 | |
2771 | found = rocker_group_tbl_find(rocker, match); | |
2772 | ||
2773 | if (found) { | |
c4f20321 SF |
2774 | if (trans != SWITCHDEV_TRANS_PREPARE) |
2775 | hash_del(&found->entry); | |
0985df73 | 2776 | rocker_group_tbl_entry_free(trans, found); |
9f6bbf7c SF |
2777 | found = match; |
2778 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_MOD; | |
2779 | } else { | |
2780 | found = match; | |
2781 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_ADD; | |
2782 | } | |
2783 | ||
c4f20321 SF |
2784 | if (trans != SWITCHDEV_TRANS_PREPARE) |
2785 | hash_add(rocker->group_tbl, &found->entry, found->group_id); | |
9f6bbf7c | 2786 | |
179f9a25 | 2787 | spin_unlock_irqrestore(&rocker->group_tbl_lock, lock_flags); |
9f6bbf7c | 2788 | |
179f9a25 SF |
2789 | return rocker_cmd_exec(rocker_port, trans, flags, |
2790 | rocker_cmd_group_tbl_add, found, NULL, NULL); | |
9f6bbf7c SF |
2791 | } |
2792 | ||
2793 | static int rocker_group_tbl_del(struct rocker_port *rocker_port, | |
179f9a25 | 2794 | enum switchdev_trans trans, int flags, |
c4f20321 | 2795 | struct rocker_group_tbl_entry *match) |
9f6bbf7c SF |
2796 | { |
2797 | struct rocker *rocker = rocker_port->rocker; | |
2798 | struct rocker_group_tbl_entry *found; | |
179f9a25 | 2799 | unsigned long lock_flags; |
9f6bbf7c SF |
2800 | int err = 0; |
2801 | ||
179f9a25 | 2802 | spin_lock_irqsave(&rocker->group_tbl_lock, lock_flags); |
9f6bbf7c SF |
2803 | |
2804 | found = rocker_group_tbl_find(rocker, match); | |
2805 | ||
2806 | if (found) { | |
c4f20321 SF |
2807 | if (trans != SWITCHDEV_TRANS_PREPARE) |
2808 | hash_del(&found->entry); | |
9f6bbf7c SF |
2809 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_DEL; |
2810 | } | |
2811 | ||
179f9a25 | 2812 | spin_unlock_irqrestore(&rocker->group_tbl_lock, lock_flags); |
9f6bbf7c | 2813 | |
0985df73 | 2814 | rocker_group_tbl_entry_free(trans, match); |
9f6bbf7c SF |
2815 | |
2816 | if (found) { | |
179f9a25 | 2817 | err = rocker_cmd_exec(rocker_port, trans, flags, |
9f6bbf7c | 2818 | rocker_cmd_group_tbl_del, |
c4f20321 | 2819 | found, NULL, NULL); |
0985df73 | 2820 | rocker_group_tbl_entry_free(trans, found); |
9f6bbf7c SF |
2821 | } |
2822 | ||
2823 | return err; | |
2824 | } | |
2825 | ||
2826 | static int rocker_group_tbl_do(struct rocker_port *rocker_port, | |
c4f20321 SF |
2827 | enum switchdev_trans trans, int flags, |
2828 | struct rocker_group_tbl_entry *entry) | |
9f6bbf7c | 2829 | { |
9f6bbf7c | 2830 | if (flags & ROCKER_OP_FLAG_REMOVE) |
179f9a25 | 2831 | return rocker_group_tbl_del(rocker_port, trans, flags, entry); |
9f6bbf7c | 2832 | else |
179f9a25 | 2833 | return rocker_group_tbl_add(rocker_port, trans, flags, entry); |
9f6bbf7c SF |
2834 | } |
2835 | ||
2836 | static int rocker_group_l2_interface(struct rocker_port *rocker_port, | |
c4f20321 SF |
2837 | enum switchdev_trans trans, int flags, |
2838 | __be16 vlan_id, u32 out_pport, | |
2839 | int pop_vlan) | |
9f6bbf7c SF |
2840 | { |
2841 | struct rocker_group_tbl_entry *entry; | |
2842 | ||
179f9a25 | 2843 | entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry)); |
9f6bbf7c SF |
2844 | if (!entry) |
2845 | return -ENOMEM; | |
2846 | ||
4a6bb6d3 | 2847 | entry->group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport); |
9f6bbf7c SF |
2848 | entry->l2_interface.pop_vlan = pop_vlan; |
2849 | ||
c4f20321 | 2850 | return rocker_group_tbl_do(rocker_port, trans, flags, entry); |
9f6bbf7c SF |
2851 | } |
2852 | ||
2853 | static int rocker_group_l2_fan_out(struct rocker_port *rocker_port, | |
c4f20321 | 2854 | enum switchdev_trans trans, |
9f6bbf7c | 2855 | int flags, u8 group_count, |
e5054643 | 2856 | const u32 *group_ids, u32 group_id) |
9f6bbf7c SF |
2857 | { |
2858 | struct rocker_group_tbl_entry *entry; | |
2859 | ||
179f9a25 | 2860 | entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry)); |
9f6bbf7c SF |
2861 | if (!entry) |
2862 | return -ENOMEM; | |
2863 | ||
2864 | entry->group_id = group_id; | |
2865 | entry->group_count = group_count; | |
2866 | ||
179f9a25 SF |
2867 | entry->group_ids = rocker_port_kcalloc(rocker_port, trans, flags, |
2868 | group_count, sizeof(u32)); | |
9f6bbf7c | 2869 | if (!entry->group_ids) { |
0985df73 | 2870 | rocker_port_kfree(trans, entry); |
9f6bbf7c SF |
2871 | return -ENOMEM; |
2872 | } | |
2873 | memcpy(entry->group_ids, group_ids, group_count * sizeof(u32)); | |
2874 | ||
c4f20321 | 2875 | return rocker_group_tbl_do(rocker_port, trans, flags, entry); |
9f6bbf7c SF |
2876 | } |
2877 | ||
2878 | static int rocker_group_l2_flood(struct rocker_port *rocker_port, | |
c4f20321 SF |
2879 | enum switchdev_trans trans, int flags, |
2880 | __be16 vlan_id, u8 group_count, | |
e5054643 | 2881 | const u32 *group_ids, u32 group_id) |
9f6bbf7c | 2882 | { |
c4f20321 | 2883 | return rocker_group_l2_fan_out(rocker_port, trans, flags, |
9f6bbf7c SF |
2884 | group_count, group_ids, |
2885 | group_id); | |
2886 | } | |
2887 | ||
c1beeef7 | 2888 | static int rocker_group_l3_unicast(struct rocker_port *rocker_port, |
c4f20321 | 2889 | enum switchdev_trans trans, int flags, |
e5054643 | 2890 | u32 index, const u8 *src_mac, const u8 *dst_mac, |
c4f20321 | 2891 | __be16 vlan_id, bool ttl_check, u32 pport) |
c1beeef7 SF |
2892 | { |
2893 | struct rocker_group_tbl_entry *entry; | |
2894 | ||
179f9a25 | 2895 | entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry)); |
c1beeef7 SF |
2896 | if (!entry) |
2897 | return -ENOMEM; | |
2898 | ||
2899 | entry->group_id = ROCKER_GROUP_L3_UNICAST(index); | |
2900 | if (src_mac) | |
2901 | ether_addr_copy(entry->l3_unicast.eth_src, src_mac); | |
2902 | if (dst_mac) | |
2903 | ether_addr_copy(entry->l3_unicast.eth_dst, dst_mac); | |
2904 | entry->l3_unicast.vlan_id = vlan_id; | |
2905 | entry->l3_unicast.ttl_check = ttl_check; | |
2906 | entry->l3_unicast.group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, pport); | |
2907 | ||
c4f20321 | 2908 | return rocker_group_tbl_do(rocker_port, trans, flags, entry); |
c1beeef7 SF |
2909 | } |
2910 | ||
2911 | static struct rocker_neigh_tbl_entry * | |
e5054643 | 2912 | rocker_neigh_tbl_find(const struct rocker *rocker, __be32 ip_addr) |
c1beeef7 SF |
2913 | { |
2914 | struct rocker_neigh_tbl_entry *found; | |
2915 | ||
0f43deba SF |
2916 | hash_for_each_possible(rocker->neigh_tbl, found, |
2917 | entry, be32_to_cpu(ip_addr)) | |
c1beeef7 SF |
2918 | if (found->ip_addr == ip_addr) |
2919 | return found; | |
2920 | ||
2921 | return NULL; | |
2922 | } | |
2923 | ||
2924 | static void _rocker_neigh_add(struct rocker *rocker, | |
550ecc92 | 2925 | enum switchdev_trans trans, |
c1beeef7 SF |
2926 | struct rocker_neigh_tbl_entry *entry) |
2927 | { | |
4d81db41 SF |
2928 | if (trans != SWITCHDEV_TRANS_COMMIT) |
2929 | entry->index = rocker->neigh_tbl_next_index++; | |
550ecc92 SH |
2930 | if (trans == SWITCHDEV_TRANS_PREPARE) |
2931 | return; | |
c1beeef7 | 2932 | entry->ref_count++; |
0f43deba SF |
2933 | hash_add(rocker->neigh_tbl, &entry->entry, |
2934 | be32_to_cpu(entry->ip_addr)); | |
c1beeef7 SF |
2935 | } |
2936 | ||
0985df73 | 2937 | static void _rocker_neigh_del(enum switchdev_trans trans, |
c1beeef7 SF |
2938 | struct rocker_neigh_tbl_entry *entry) |
2939 | { | |
550ecc92 SH |
2940 | if (trans == SWITCHDEV_TRANS_PREPARE) |
2941 | return; | |
c1beeef7 SF |
2942 | if (--entry->ref_count == 0) { |
2943 | hash_del(&entry->entry); | |
0985df73 | 2944 | rocker_port_kfree(trans, entry); |
c1beeef7 SF |
2945 | } |
2946 | } | |
2947 | ||
c4f20321 | 2948 | static void _rocker_neigh_update(struct rocker_neigh_tbl_entry *entry, |
550ecc92 | 2949 | enum switchdev_trans trans, |
e5054643 | 2950 | const u8 *eth_dst, bool ttl_check) |
c1beeef7 SF |
2951 | { |
2952 | if (eth_dst) { | |
2953 | ether_addr_copy(entry->eth_dst, eth_dst); | |
2954 | entry->ttl_check = ttl_check; | |
550ecc92 | 2955 | } else if (trans != SWITCHDEV_TRANS_PREPARE) { |
c1beeef7 SF |
2956 | entry->ref_count++; |
2957 | } | |
2958 | } | |
2959 | ||
2960 | static int rocker_port_ipv4_neigh(struct rocker_port *rocker_port, | |
c4f20321 | 2961 | enum switchdev_trans trans, |
e5054643 | 2962 | int flags, __be32 ip_addr, const u8 *eth_dst) |
c1beeef7 SF |
2963 | { |
2964 | struct rocker *rocker = rocker_port->rocker; | |
2965 | struct rocker_neigh_tbl_entry *entry; | |
2966 | struct rocker_neigh_tbl_entry *found; | |
2967 | unsigned long lock_flags; | |
2968 | __be16 eth_type = htons(ETH_P_IP); | |
2969 | enum rocker_of_dpa_table_id goto_tbl = | |
2970 | ROCKER_OF_DPA_TABLE_ID_ACL_POLICY; | |
2971 | u32 group_id; | |
2972 | u32 priority = 0; | |
2973 | bool adding = !(flags & ROCKER_OP_FLAG_REMOVE); | |
2974 | bool updating; | |
2975 | bool removing; | |
2976 | int err = 0; | |
2977 | ||
179f9a25 | 2978 | entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry)); |
c1beeef7 SF |
2979 | if (!entry) |
2980 | return -ENOMEM; | |
2981 | ||
2982 | spin_lock_irqsave(&rocker->neigh_tbl_lock, lock_flags); | |
2983 | ||
2984 | found = rocker_neigh_tbl_find(rocker, ip_addr); | |
2985 | ||
2986 | updating = found && adding; | |
2987 | removing = found && !adding; | |
2988 | adding = !found && adding; | |
2989 | ||
2990 | if (adding) { | |
2991 | entry->ip_addr = ip_addr; | |
2992 | entry->dev = rocker_port->dev; | |
2993 | ether_addr_copy(entry->eth_dst, eth_dst); | |
2994 | entry->ttl_check = true; | |
550ecc92 | 2995 | _rocker_neigh_add(rocker, trans, entry); |
c1beeef7 SF |
2996 | } else if (removing) { |
2997 | memcpy(entry, found, sizeof(*entry)); | |
0985df73 | 2998 | _rocker_neigh_del(trans, found); |
c1beeef7 | 2999 | } else if (updating) { |
550ecc92 | 3000 | _rocker_neigh_update(found, trans, eth_dst, true); |
c1beeef7 SF |
3001 | memcpy(entry, found, sizeof(*entry)); |
3002 | } else { | |
3003 | err = -ENOENT; | |
3004 | } | |
3005 | ||
3006 | spin_unlock_irqrestore(&rocker->neigh_tbl_lock, lock_flags); | |
3007 | ||
3008 | if (err) | |
3009 | goto err_out; | |
3010 | ||
3011 | /* For each active neighbor, we have an L3 unicast group and | |
3012 | * a /32 route to the neighbor, which uses the L3 unicast | |
3013 | * group. The L3 unicast group can also be referred to by | |
3014 | * other routes' nexthops. | |
3015 | */ | |
3016 | ||
c4f20321 | 3017 | err = rocker_group_l3_unicast(rocker_port, trans, flags, |
c1beeef7 SF |
3018 | entry->index, |
3019 | rocker_port->dev->dev_addr, | |
3020 | entry->eth_dst, | |
3021 | rocker_port->internal_vlan_id, | |
3022 | entry->ttl_check, | |
3023 | rocker_port->pport); | |
3024 | if (err) { | |
3025 | netdev_err(rocker_port->dev, | |
3026 | "Error (%d) L3 unicast group index %d\n", | |
3027 | err, entry->index); | |
3028 | goto err_out; | |
3029 | } | |
3030 | ||
3031 | if (adding || removing) { | |
3032 | group_id = ROCKER_GROUP_L3_UNICAST(entry->index); | |
c4f20321 | 3033 | err = rocker_flow_tbl_ucast4_routing(rocker_port, trans, |
c1beeef7 SF |
3034 | eth_type, ip_addr, |
3035 | inet_make_mask(32), | |
3036 | priority, goto_tbl, | |
3037 | group_id, flags); | |
3038 | ||
3039 | if (err) | |
3040 | netdev_err(rocker_port->dev, | |
3041 | "Error (%d) /32 unicast route %pI4 group 0x%08x\n", | |
3042 | err, &entry->ip_addr, group_id); | |
3043 | } | |
3044 | ||
3045 | err_out: | |
3046 | if (!adding) | |
0985df73 | 3047 | rocker_port_kfree(trans, entry); |
c1beeef7 SF |
3048 | |
3049 | return err; | |
3050 | } | |
3051 | ||
3052 | static int rocker_port_ipv4_resolve(struct rocker_port *rocker_port, | |
c4f20321 | 3053 | enum switchdev_trans trans, __be32 ip_addr) |
c1beeef7 SF |
3054 | { |
3055 | struct net_device *dev = rocker_port->dev; | |
0f43deba | 3056 | struct neighbour *n = __ipv4_neigh_lookup(dev, (__force u32)ip_addr); |
c1beeef7 SF |
3057 | int err = 0; |
3058 | ||
4133fc09 | 3059 | if (!n) { |
c1beeef7 | 3060 | n = neigh_create(&arp_tbl, &ip_addr, dev); |
4133fc09 YX |
3061 | if (IS_ERR(n)) |
3062 | return IS_ERR(n); | |
3063 | } | |
c1beeef7 SF |
3064 | |
3065 | /* If the neigh is already resolved, then go ahead and | |
3066 | * install the entry, otherwise start the ARP process to | |
3067 | * resolve the neigh. | |
3068 | */ | |
3069 | ||
3070 | if (n->nud_state & NUD_VALID) | |
c4f20321 SF |
3071 | err = rocker_port_ipv4_neigh(rocker_port, trans, 0, |
3072 | ip_addr, n->ha); | |
c1beeef7 SF |
3073 | else |
3074 | neigh_event_send(n, NULL); | |
3075 | ||
4133fc09 | 3076 | neigh_release(n); |
c1beeef7 SF |
3077 | return err; |
3078 | } | |
3079 | ||
c4f20321 SF |
3080 | static int rocker_port_ipv4_nh(struct rocker_port *rocker_port, |
3081 | enum switchdev_trans trans, int flags, | |
c1beeef7 SF |
3082 | __be32 ip_addr, u32 *index) |
3083 | { | |
3084 | struct rocker *rocker = rocker_port->rocker; | |
3085 | struct rocker_neigh_tbl_entry *entry; | |
3086 | struct rocker_neigh_tbl_entry *found; | |
3087 | unsigned long lock_flags; | |
3088 | bool adding = !(flags & ROCKER_OP_FLAG_REMOVE); | |
3089 | bool updating; | |
3090 | bool removing; | |
3091 | bool resolved = true; | |
3092 | int err = 0; | |
3093 | ||
179f9a25 | 3094 | entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry)); |
c1beeef7 SF |
3095 | if (!entry) |
3096 | return -ENOMEM; | |
3097 | ||
3098 | spin_lock_irqsave(&rocker->neigh_tbl_lock, lock_flags); | |
3099 | ||
3100 | found = rocker_neigh_tbl_find(rocker, ip_addr); | |
3101 | if (found) | |
3102 | *index = found->index; | |
3103 | ||
3104 | updating = found && adding; | |
3105 | removing = found && !adding; | |
3106 | adding = !found && adding; | |
3107 | ||
3108 | if (adding) { | |
3109 | entry->ip_addr = ip_addr; | |
3110 | entry->dev = rocker_port->dev; | |
550ecc92 | 3111 | _rocker_neigh_add(rocker, trans, entry); |
c1beeef7 SF |
3112 | *index = entry->index; |
3113 | resolved = false; | |
3114 | } else if (removing) { | |
0985df73 | 3115 | _rocker_neigh_del(trans, found); |
c1beeef7 | 3116 | } else if (updating) { |
550ecc92 | 3117 | _rocker_neigh_update(found, trans, NULL, false); |
c1beeef7 SF |
3118 | resolved = !is_zero_ether_addr(found->eth_dst); |
3119 | } else { | |
3120 | err = -ENOENT; | |
3121 | } | |
3122 | ||
3123 | spin_unlock_irqrestore(&rocker->neigh_tbl_lock, lock_flags); | |
3124 | ||
3125 | if (!adding) | |
0985df73 | 3126 | rocker_port_kfree(trans, entry); |
c1beeef7 SF |
3127 | |
3128 | if (err) | |
3129 | return err; | |
3130 | ||
3131 | /* Resolved means neigh ip_addr is resolved to neigh mac. */ | |
3132 | ||
3133 | if (!resolved) | |
c4f20321 | 3134 | err = rocker_port_ipv4_resolve(rocker_port, trans, ip_addr); |
c1beeef7 SF |
3135 | |
3136 | return err; | |
3137 | } | |
3138 | ||
6c707945 | 3139 | static int rocker_port_vlan_flood_group(struct rocker_port *rocker_port, |
c4f20321 | 3140 | enum switchdev_trans trans, |
6c707945 SF |
3141 | int flags, __be16 vlan_id) |
3142 | { | |
3143 | struct rocker_port *p; | |
e5054643 | 3144 | const struct rocker *rocker = rocker_port->rocker; |
6c707945 | 3145 | u32 group_id = ROCKER_GROUP_L2_FLOOD(vlan_id, 0); |
04f49faf | 3146 | u32 *group_ids; |
6c707945 | 3147 | u8 group_count = 0; |
04f49faf | 3148 | int err = 0; |
6c707945 SF |
3149 | int i; |
3150 | ||
179f9a25 SF |
3151 | group_ids = rocker_port_kcalloc(rocker_port, trans, flags, |
3152 | rocker->port_count, sizeof(u32)); | |
04f49faf SF |
3153 | if (!group_ids) |
3154 | return -ENOMEM; | |
3155 | ||
6c707945 SF |
3156 | /* Adjust the flood group for this VLAN. The flood group |
3157 | * references an L2 interface group for each port in this | |
3158 | * VLAN. | |
3159 | */ | |
3160 | ||
3161 | for (i = 0; i < rocker->port_count; i++) { | |
3162 | p = rocker->ports[i]; | |
bcfd7801 SF |
3163 | if (!p) |
3164 | continue; | |
6c707945 SF |
3165 | if (!rocker_port_is_bridged(p)) |
3166 | continue; | |
3167 | if (test_bit(ntohs(vlan_id), p->vlan_bitmap)) { | |
3168 | group_ids[group_count++] = | |
4a6bb6d3 | 3169 | ROCKER_GROUP_L2_INTERFACE(vlan_id, p->pport); |
6c707945 SF |
3170 | } |
3171 | } | |
3172 | ||
3173 | /* If there are no bridged ports in this VLAN, we're done */ | |
3174 | if (group_count == 0) | |
04f49faf | 3175 | goto no_ports_in_vlan; |
6c707945 | 3176 | |
c4f20321 SF |
3177 | err = rocker_group_l2_flood(rocker_port, trans, flags, vlan_id, |
3178 | group_count, group_ids, group_id); | |
6c707945 SF |
3179 | if (err) |
3180 | netdev_err(rocker_port->dev, | |
3181 | "Error (%d) port VLAN l2 flood group\n", err); | |
3182 | ||
04f49faf | 3183 | no_ports_in_vlan: |
0985df73 | 3184 | rocker_port_kfree(trans, group_ids); |
6c707945 SF |
3185 | return err; |
3186 | } | |
3187 | ||
3188 | static int rocker_port_vlan_l2_groups(struct rocker_port *rocker_port, | |
c4f20321 SF |
3189 | enum switchdev_trans trans, int flags, |
3190 | __be16 vlan_id, bool pop_vlan) | |
6c707945 | 3191 | { |
e5054643 | 3192 | const struct rocker *rocker = rocker_port->rocker; |
6c707945 SF |
3193 | struct rocker_port *p; |
3194 | bool adding = !(flags & ROCKER_OP_FLAG_REMOVE); | |
4a6bb6d3 | 3195 | u32 out_pport; |
6c707945 SF |
3196 | int ref = 0; |
3197 | int err; | |
3198 | int i; | |
3199 | ||
3200 | /* An L2 interface group for this port in this VLAN, but | |
3201 | * only when port STP state is LEARNING|FORWARDING. | |
3202 | */ | |
3203 | ||
3204 | if (rocker_port->stp_state == BR_STATE_LEARNING || | |
3205 | rocker_port->stp_state == BR_STATE_FORWARDING) { | |
4a6bb6d3 | 3206 | out_pport = rocker_port->pport; |
c4f20321 SF |
3207 | err = rocker_group_l2_interface(rocker_port, trans, flags, |
3208 | vlan_id, out_pport, pop_vlan); | |
6c707945 SF |
3209 | if (err) { |
3210 | netdev_err(rocker_port->dev, | |
4a6bb6d3 SF |
3211 | "Error (%d) port VLAN l2 group for pport %d\n", |
3212 | err, out_pport); | |
6c707945 SF |
3213 | return err; |
3214 | } | |
3215 | } | |
3216 | ||
3217 | /* An L2 interface group for this VLAN to CPU port. | |
3218 | * Add when first port joins this VLAN and destroy when | |
3219 | * last port leaves this VLAN. | |
3220 | */ | |
3221 | ||
3222 | for (i = 0; i < rocker->port_count; i++) { | |
3223 | p = rocker->ports[i]; | |
bcfd7801 | 3224 | if (p && test_bit(ntohs(vlan_id), p->vlan_bitmap)) |
6c707945 SF |
3225 | ref++; |
3226 | } | |
3227 | ||
3228 | if ((!adding || ref != 1) && (adding || ref != 0)) | |
3229 | return 0; | |
3230 | ||
4a6bb6d3 | 3231 | out_pport = 0; |
c4f20321 SF |
3232 | err = rocker_group_l2_interface(rocker_port, trans, flags, |
3233 | vlan_id, out_pport, pop_vlan); | |
6c707945 SF |
3234 | if (err) { |
3235 | netdev_err(rocker_port->dev, | |
3236 | "Error (%d) port VLAN l2 group for CPU port\n", err); | |
3237 | return err; | |
3238 | } | |
3239 | ||
3240 | return 0; | |
3241 | } | |
3242 | ||
9f6bbf7c SF |
3243 | static struct rocker_ctrl { |
3244 | const u8 *eth_dst; | |
3245 | const u8 *eth_dst_mask; | |
11e6c65a | 3246 | __be16 eth_type; |
9f6bbf7c SF |
3247 | bool acl; |
3248 | bool bridge; | |
3249 | bool term; | |
3250 | bool copy_to_cpu; | |
3251 | } rocker_ctrls[] = { | |
3252 | [ROCKER_CTRL_LINK_LOCAL_MCAST] = { | |
3253 | /* pass link local multicast pkts up to CPU for filtering */ | |
3254 | .eth_dst = ll_mac, | |
3255 | .eth_dst_mask = ll_mask, | |
3256 | .acl = true, | |
3257 | }, | |
3258 | [ROCKER_CTRL_LOCAL_ARP] = { | |
3259 | /* pass local ARP pkts up to CPU */ | |
3260 | .eth_dst = zero_mac, | |
3261 | .eth_dst_mask = zero_mac, | |
3262 | .eth_type = htons(ETH_P_ARP), | |
3263 | .acl = true, | |
3264 | }, | |
3265 | [ROCKER_CTRL_IPV4_MCAST] = { | |
3266 | /* pass IPv4 mcast pkts up to CPU, RFC 1112 */ | |
3267 | .eth_dst = ipv4_mcast, | |
3268 | .eth_dst_mask = ipv4_mask, | |
3269 | .eth_type = htons(ETH_P_IP), | |
3270 | .term = true, | |
3271 | .copy_to_cpu = true, | |
3272 | }, | |
3273 | [ROCKER_CTRL_IPV6_MCAST] = { | |
3274 | /* pass IPv6 mcast pkts up to CPU, RFC 2464 */ | |
3275 | .eth_dst = ipv6_mcast, | |
3276 | .eth_dst_mask = ipv6_mask, | |
3277 | .eth_type = htons(ETH_P_IPV6), | |
3278 | .term = true, | |
3279 | .copy_to_cpu = true, | |
3280 | }, | |
3281 | [ROCKER_CTRL_DFLT_BRIDGING] = { | |
3282 | /* flood any pkts on vlan */ | |
3283 | .bridge = true, | |
3284 | .copy_to_cpu = true, | |
3285 | }, | |
8254973f SH |
3286 | [ROCKER_CTRL_DFLT_OVS] = { |
3287 | /* pass all pkts up to CPU */ | |
3288 | .eth_dst = zero_mac, | |
3289 | .eth_dst_mask = zero_mac, | |
3290 | .acl = true, | |
3291 | }, | |
9f6bbf7c SF |
3292 | }; |
3293 | ||
3294 | static int rocker_port_ctrl_vlan_acl(struct rocker_port *rocker_port, | |
c4f20321 | 3295 | enum switchdev_trans trans, int flags, |
e5054643 | 3296 | const struct rocker_ctrl *ctrl, __be16 vlan_id) |
9f6bbf7c | 3297 | { |
4a6bb6d3 SF |
3298 | u32 in_pport = rocker_port->pport; |
3299 | u32 in_pport_mask = 0xffffffff; | |
3300 | u32 out_pport = 0; | |
e5054643 SH |
3301 | const u8 *eth_src = NULL; |
3302 | const u8 *eth_src_mask = NULL; | |
9f6bbf7c SF |
3303 | __be16 vlan_id_mask = htons(0xffff); |
3304 | u8 ip_proto = 0; | |
3305 | u8 ip_proto_mask = 0; | |
3306 | u8 ip_tos = 0; | |
3307 | u8 ip_tos_mask = 0; | |
4a6bb6d3 | 3308 | u32 group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport); |
9f6bbf7c SF |
3309 | int err; |
3310 | ||
c4f20321 | 3311 | err = rocker_flow_tbl_acl(rocker_port, trans, flags, |
4a6bb6d3 | 3312 | in_pport, in_pport_mask, |
9f6bbf7c SF |
3313 | eth_src, eth_src_mask, |
3314 | ctrl->eth_dst, ctrl->eth_dst_mask, | |
3315 | ctrl->eth_type, | |
3316 | vlan_id, vlan_id_mask, | |
3317 | ip_proto, ip_proto_mask, | |
3318 | ip_tos, ip_tos_mask, | |
3319 | group_id); | |
3320 | ||
3321 | if (err) | |
3322 | netdev_err(rocker_port->dev, "Error (%d) ctrl ACL\n", err); | |
3323 | ||
3324 | return err; | |
3325 | } | |
3326 | ||
6c707945 | 3327 | static int rocker_port_ctrl_vlan_bridge(struct rocker_port *rocker_port, |
c4f20321 | 3328 | enum switchdev_trans trans, int flags, |
e5054643 | 3329 | const struct rocker_ctrl *ctrl, |
6c707945 SF |
3330 | __be16 vlan_id) |
3331 | { | |
3332 | enum rocker_of_dpa_table_id goto_tbl = | |
3333 | ROCKER_OF_DPA_TABLE_ID_ACL_POLICY; | |
3334 | u32 group_id = ROCKER_GROUP_L2_FLOOD(vlan_id, 0); | |
3335 | u32 tunnel_id = 0; | |
3336 | int err; | |
3337 | ||
3338 | if (!rocker_port_is_bridged(rocker_port)) | |
3339 | return 0; | |
3340 | ||
c4f20321 | 3341 | err = rocker_flow_tbl_bridge(rocker_port, trans, flags, |
6c707945 SF |
3342 | ctrl->eth_dst, ctrl->eth_dst_mask, |
3343 | vlan_id, tunnel_id, | |
3344 | goto_tbl, group_id, ctrl->copy_to_cpu); | |
3345 | ||
3346 | if (err) | |
3347 | netdev_err(rocker_port->dev, "Error (%d) ctrl FLOOD\n", err); | |
3348 | ||
3349 | return err; | |
3350 | } | |
3351 | ||
9f6bbf7c | 3352 | static int rocker_port_ctrl_vlan_term(struct rocker_port *rocker_port, |
c4f20321 | 3353 | enum switchdev_trans trans, int flags, |
e5054643 | 3354 | const struct rocker_ctrl *ctrl, __be16 vlan_id) |
9f6bbf7c | 3355 | { |
4a6bb6d3 | 3356 | u32 in_pport_mask = 0xffffffff; |
9f6bbf7c SF |
3357 | __be16 vlan_id_mask = htons(0xffff); |
3358 | int err; | |
3359 | ||
3360 | if (ntohs(vlan_id) == 0) | |
3361 | vlan_id = rocker_port->internal_vlan_id; | |
3362 | ||
c4f20321 | 3363 | err = rocker_flow_tbl_term_mac(rocker_port, trans, |
4a6bb6d3 | 3364 | rocker_port->pport, in_pport_mask, |
9f6bbf7c SF |
3365 | ctrl->eth_type, ctrl->eth_dst, |
3366 | ctrl->eth_dst_mask, vlan_id, | |
3367 | vlan_id_mask, ctrl->copy_to_cpu, | |
3368 | flags); | |
3369 | ||
3370 | if (err) | |
3371 | netdev_err(rocker_port->dev, "Error (%d) ctrl term\n", err); | |
3372 | ||
3373 | return err; | |
3374 | } | |
3375 | ||
c4f20321 SF |
3376 | static int rocker_port_ctrl_vlan(struct rocker_port *rocker_port, |
3377 | enum switchdev_trans trans, int flags, | |
e5054643 | 3378 | const struct rocker_ctrl *ctrl, __be16 vlan_id) |
9f6bbf7c SF |
3379 | { |
3380 | if (ctrl->acl) | |
c4f20321 | 3381 | return rocker_port_ctrl_vlan_acl(rocker_port, trans, flags, |
9f6bbf7c | 3382 | ctrl, vlan_id); |
6c707945 | 3383 | if (ctrl->bridge) |
c4f20321 | 3384 | return rocker_port_ctrl_vlan_bridge(rocker_port, trans, flags, |
6c707945 | 3385 | ctrl, vlan_id); |
9f6bbf7c SF |
3386 | |
3387 | if (ctrl->term) | |
c4f20321 | 3388 | return rocker_port_ctrl_vlan_term(rocker_port, trans, flags, |
9f6bbf7c SF |
3389 | ctrl, vlan_id); |
3390 | ||
3391 | return -EOPNOTSUPP; | |
3392 | } | |
3393 | ||
3394 | static int rocker_port_ctrl_vlan_add(struct rocker_port *rocker_port, | |
c4f20321 SF |
3395 | enum switchdev_trans trans, int flags, |
3396 | __be16 vlan_id) | |
9f6bbf7c SF |
3397 | { |
3398 | int err = 0; | |
3399 | int i; | |
3400 | ||
3401 | for (i = 0; i < ROCKER_CTRL_MAX; i++) { | |
3402 | if (rocker_port->ctrls[i]) { | |
c4f20321 | 3403 | err = rocker_port_ctrl_vlan(rocker_port, trans, flags, |
9f6bbf7c SF |
3404 | &rocker_ctrls[i], vlan_id); |
3405 | if (err) | |
3406 | return err; | |
3407 | } | |
3408 | } | |
3409 | ||
3410 | return err; | |
3411 | } | |
3412 | ||
c4f20321 SF |
3413 | static int rocker_port_ctrl(struct rocker_port *rocker_port, |
3414 | enum switchdev_trans trans, int flags, | |
e5054643 | 3415 | const struct rocker_ctrl *ctrl) |
9f6bbf7c SF |
3416 | { |
3417 | u16 vid; | |
3418 | int err = 0; | |
3419 | ||
3420 | for (vid = 1; vid < VLAN_N_VID; vid++) { | |
3421 | if (!test_bit(vid, rocker_port->vlan_bitmap)) | |
3422 | continue; | |
c4f20321 | 3423 | err = rocker_port_ctrl_vlan(rocker_port, trans, flags, |
9f6bbf7c SF |
3424 | ctrl, htons(vid)); |
3425 | if (err) | |
3426 | break; | |
3427 | } | |
3428 | ||
3429 | return err; | |
3430 | } | |
3431 | ||
c4f20321 SF |
3432 | static int rocker_port_vlan(struct rocker_port *rocker_port, |
3433 | enum switchdev_trans trans, int flags, u16 vid) | |
6c707945 SF |
3434 | { |
3435 | enum rocker_of_dpa_table_id goto_tbl = | |
3436 | ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC; | |
4a6bb6d3 | 3437 | u32 in_pport = rocker_port->pport; |
6c707945 SF |
3438 | __be16 vlan_id = htons(vid); |
3439 | __be16 vlan_id_mask = htons(0xffff); | |
3440 | __be16 internal_vlan_id; | |
3441 | bool untagged; | |
3442 | bool adding = !(flags & ROCKER_OP_FLAG_REMOVE); | |
3443 | int err; | |
3444 | ||
3445 | internal_vlan_id = rocker_port_vid_to_vlan(rocker_port, vid, &untagged); | |
3446 | ||
9228ad26 SF |
3447 | if (adding && test_bit(ntohs(internal_vlan_id), |
3448 | rocker_port->vlan_bitmap)) | |
6c707945 | 3449 | return 0; /* already added */ |
9228ad26 SF |
3450 | else if (!adding && !test_bit(ntohs(internal_vlan_id), |
3451 | rocker_port->vlan_bitmap)) | |
6c707945 SF |
3452 | return 0; /* already removed */ |
3453 | ||
9228ad26 SF |
3454 | change_bit(ntohs(internal_vlan_id), rocker_port->vlan_bitmap); |
3455 | ||
6c707945 | 3456 | if (adding) { |
c4f20321 | 3457 | err = rocker_port_ctrl_vlan_add(rocker_port, trans, flags, |
6c707945 SF |
3458 | internal_vlan_id); |
3459 | if (err) { | |
3460 | netdev_err(rocker_port->dev, | |
3461 | "Error (%d) port ctrl vlan add\n", err); | |
9228ad26 | 3462 | goto err_out; |
6c707945 SF |
3463 | } |
3464 | } | |
3465 | ||
c4f20321 | 3466 | err = rocker_port_vlan_l2_groups(rocker_port, trans, flags, |
6c707945 SF |
3467 | internal_vlan_id, untagged); |
3468 | if (err) { | |
3469 | netdev_err(rocker_port->dev, | |
3470 | "Error (%d) port VLAN l2 groups\n", err); | |
9228ad26 | 3471 | goto err_out; |
6c707945 SF |
3472 | } |
3473 | ||
c4f20321 | 3474 | err = rocker_port_vlan_flood_group(rocker_port, trans, flags, |
6c707945 SF |
3475 | internal_vlan_id); |
3476 | if (err) { | |
3477 | netdev_err(rocker_port->dev, | |
3478 | "Error (%d) port VLAN l2 flood group\n", err); | |
9228ad26 | 3479 | goto err_out; |
6c707945 SF |
3480 | } |
3481 | ||
c4f20321 | 3482 | err = rocker_flow_tbl_vlan(rocker_port, trans, flags, |
4a6bb6d3 | 3483 | in_pport, vlan_id, vlan_id_mask, |
6c707945 SF |
3484 | goto_tbl, untagged, internal_vlan_id); |
3485 | if (err) | |
3486 | netdev_err(rocker_port->dev, | |
3487 | "Error (%d) port VLAN table\n", err); | |
3488 | ||
9228ad26 SF |
3489 | err_out: |
3490 | if (trans == SWITCHDEV_TRANS_PREPARE) | |
3491 | change_bit(ntohs(internal_vlan_id), rocker_port->vlan_bitmap); | |
3492 | ||
6c707945 SF |
3493 | return err; |
3494 | } | |
3495 | ||
c4f20321 SF |
3496 | static int rocker_port_ig_tbl(struct rocker_port *rocker_port, |
3497 | enum switchdev_trans trans, int flags) | |
9f6bbf7c SF |
3498 | { |
3499 | enum rocker_of_dpa_table_id goto_tbl; | |
4a6bb6d3 SF |
3500 | u32 in_pport; |
3501 | u32 in_pport_mask; | |
9f6bbf7c SF |
3502 | int err; |
3503 | ||
3504 | /* Normal Ethernet Frames. Matches pkts from any local physical | |
3505 | * ports. Goto VLAN tbl. | |
3506 | */ | |
3507 | ||
4a6bb6d3 SF |
3508 | in_pport = 0; |
3509 | in_pport_mask = 0xffff0000; | |
9f6bbf7c SF |
3510 | goto_tbl = ROCKER_OF_DPA_TABLE_ID_VLAN; |
3511 | ||
c4f20321 | 3512 | err = rocker_flow_tbl_ig_port(rocker_port, trans, flags, |
4a6bb6d3 | 3513 | in_pport, in_pport_mask, |
9f6bbf7c SF |
3514 | goto_tbl); |
3515 | if (err) | |
3516 | netdev_err(rocker_port->dev, | |
3517 | "Error (%d) ingress port table entry\n", err); | |
3518 | ||
3519 | return err; | |
3520 | } | |
3521 | ||
6c707945 SF |
3522 | struct rocker_fdb_learn_work { |
3523 | struct work_struct work; | |
c4f20321 SF |
3524 | struct rocker_port *rocker_port; |
3525 | enum switchdev_trans trans; | |
6c707945 SF |
3526 | int flags; |
3527 | u8 addr[ETH_ALEN]; | |
3528 | u16 vid; | |
3529 | }; | |
3530 | ||
3531 | static void rocker_port_fdb_learn_work(struct work_struct *work) | |
3532 | { | |
e5054643 | 3533 | const struct rocker_fdb_learn_work *lw = |
6c707945 SF |
3534 | container_of(work, struct rocker_fdb_learn_work, work); |
3535 | bool removing = (lw->flags & ROCKER_OP_FLAG_REMOVE); | |
3536 | bool learned = (lw->flags & ROCKER_OP_FLAG_LEARNED); | |
ebb9a03a | 3537 | struct switchdev_notifier_fdb_info info; |
3aeb6617 JP |
3538 | |
3539 | info.addr = lw->addr; | |
3540 | info.vid = lw->vid; | |
6c707945 | 3541 | |
51ace887 | 3542 | if (learned && removing) |
ebb9a03a | 3543 | call_switchdev_notifiers(SWITCHDEV_FDB_DEL, |
c4f20321 | 3544 | lw->rocker_port->dev, &info.info); |
51ace887 | 3545 | else if (learned && !removing) |
ebb9a03a | 3546 | call_switchdev_notifiers(SWITCHDEV_FDB_ADD, |
c4f20321 | 3547 | lw->rocker_port->dev, &info.info); |
6c707945 | 3548 | |
0985df73 | 3549 | rocker_port_kfree(lw->trans, work); |
6c707945 SF |
3550 | } |
3551 | ||
3552 | static int rocker_port_fdb_learn(struct rocker_port *rocker_port, | |
c4f20321 SF |
3553 | enum switchdev_trans trans, int flags, |
3554 | const u8 *addr, __be16 vlan_id) | |
6c707945 SF |
3555 | { |
3556 | struct rocker_fdb_learn_work *lw; | |
3557 | enum rocker_of_dpa_table_id goto_tbl = | |
3558 | ROCKER_OF_DPA_TABLE_ID_ACL_POLICY; | |
4a6bb6d3 | 3559 | u32 out_pport = rocker_port->pport; |
6c707945 SF |
3560 | u32 tunnel_id = 0; |
3561 | u32 group_id = ROCKER_GROUP_NONE; | |
5111f80c | 3562 | bool syncing = !!(rocker_port->brport_flags & BR_LEARNING_SYNC); |
6c707945 SF |
3563 | bool copy_to_cpu = false; |
3564 | int err; | |
3565 | ||
3566 | if (rocker_port_is_bridged(rocker_port)) | |
4a6bb6d3 | 3567 | group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport); |
6c707945 SF |
3568 | |
3569 | if (!(flags & ROCKER_OP_FLAG_REFRESH)) { | |
c4f20321 SF |
3570 | err = rocker_flow_tbl_bridge(rocker_port, trans, flags, addr, |
3571 | NULL, vlan_id, tunnel_id, goto_tbl, | |
6c707945 SF |
3572 | group_id, copy_to_cpu); |
3573 | if (err) | |
3574 | return err; | |
3575 | } | |
3576 | ||
5111f80c SF |
3577 | if (!syncing) |
3578 | return 0; | |
3579 | ||
6c707945 SF |
3580 | if (!rocker_port_is_bridged(rocker_port)) |
3581 | return 0; | |
3582 | ||
179f9a25 | 3583 | lw = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*lw)); |
6c707945 SF |
3584 | if (!lw) |
3585 | return -ENOMEM; | |
3586 | ||
3587 | INIT_WORK(&lw->work, rocker_port_fdb_learn_work); | |
3588 | ||
c4f20321 SF |
3589 | lw->rocker_port = rocker_port; |
3590 | lw->trans = trans; | |
6c707945 SF |
3591 | lw->flags = flags; |
3592 | ether_addr_copy(lw->addr, addr); | |
3593 | lw->vid = rocker_port_vlan_to_vid(rocker_port, vlan_id); | |
3594 | ||
c4f20321 | 3595 | if (trans == SWITCHDEV_TRANS_PREPARE) |
0985df73 | 3596 | rocker_port_kfree(trans, lw); |
c4f20321 SF |
3597 | else |
3598 | schedule_work(&lw->work); | |
6c707945 SF |
3599 | |
3600 | return 0; | |
3601 | } | |
3602 | ||
3603 | static struct rocker_fdb_tbl_entry * | |
e5054643 SH |
3604 | rocker_fdb_tbl_find(const struct rocker *rocker, |
3605 | const struct rocker_fdb_tbl_entry *match) | |
6c707945 SF |
3606 | { |
3607 | struct rocker_fdb_tbl_entry *found; | |
3608 | ||
3609 | hash_for_each_possible(rocker->fdb_tbl, found, entry, match->key_crc32) | |
3610 | if (memcmp(&found->key, &match->key, sizeof(found->key)) == 0) | |
3611 | return found; | |
3612 | ||
3613 | return NULL; | |
3614 | } | |
3615 | ||
3616 | static int rocker_port_fdb(struct rocker_port *rocker_port, | |
c4f20321 | 3617 | enum switchdev_trans trans, |
6c707945 SF |
3618 | const unsigned char *addr, |
3619 | __be16 vlan_id, int flags) | |
3620 | { | |
3621 | struct rocker *rocker = rocker_port->rocker; | |
3622 | struct rocker_fdb_tbl_entry *fdb; | |
3623 | struct rocker_fdb_tbl_entry *found; | |
3624 | bool removing = (flags & ROCKER_OP_FLAG_REMOVE); | |
3625 | unsigned long lock_flags; | |
3626 | ||
179f9a25 | 3627 | fdb = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*fdb)); |
6c707945 SF |
3628 | if (!fdb) |
3629 | return -ENOMEM; | |
3630 | ||
3631 | fdb->learned = (flags & ROCKER_OP_FLAG_LEARNED); | |
4a6bb6d3 | 3632 | fdb->key.pport = rocker_port->pport; |
6c707945 SF |
3633 | ether_addr_copy(fdb->key.addr, addr); |
3634 | fdb->key.vlan_id = vlan_id; | |
3635 | fdb->key_crc32 = crc32(~0, &fdb->key, sizeof(fdb->key)); | |
3636 | ||
3637 | spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags); | |
3638 | ||
3639 | found = rocker_fdb_tbl_find(rocker, fdb); | |
3640 | ||
3641 | if (removing && found) { | |
0985df73 | 3642 | rocker_port_kfree(trans, fdb); |
42e94889 SH |
3643 | if (trans != SWITCHDEV_TRANS_PREPARE) |
3644 | hash_del(&found->entry); | |
6c707945 | 3645 | } else if (!removing && !found) { |
42e94889 SH |
3646 | if (trans != SWITCHDEV_TRANS_PREPARE) |
3647 | hash_add(rocker->fdb_tbl, &fdb->entry, fdb->key_crc32); | |
6c707945 SF |
3648 | } |
3649 | ||
3650 | spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags); | |
3651 | ||
3652 | /* Check if adding and already exists, or removing and can't find */ | |
3653 | if (!found != !removing) { | |
0985df73 | 3654 | rocker_port_kfree(trans, fdb); |
6c707945 SF |
3655 | if (!found && removing) |
3656 | return 0; | |
3657 | /* Refreshing existing to update aging timers */ | |
3658 | flags |= ROCKER_OP_FLAG_REFRESH; | |
3659 | } | |
3660 | ||
c4f20321 | 3661 | return rocker_port_fdb_learn(rocker_port, trans, flags, addr, vlan_id); |
6c707945 SF |
3662 | } |
3663 | ||
c4f20321 | 3664 | static int rocker_port_fdb_flush(struct rocker_port *rocker_port, |
179f9a25 | 3665 | enum switchdev_trans trans, int flags) |
6c707945 SF |
3666 | { |
3667 | struct rocker *rocker = rocker_port->rocker; | |
3668 | struct rocker_fdb_tbl_entry *found; | |
3669 | unsigned long lock_flags; | |
6c707945 SF |
3670 | struct hlist_node *tmp; |
3671 | int bkt; | |
3672 | int err = 0; | |
3673 | ||
3674 | if (rocker_port->stp_state == BR_STATE_LEARNING || | |
3675 | rocker_port->stp_state == BR_STATE_FORWARDING) | |
3676 | return 0; | |
3677 | ||
179f9a25 SF |
3678 | flags |= ROCKER_OP_FLAG_REMOVE; |
3679 | ||
6c707945 SF |
3680 | spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags); |
3681 | ||
3682 | hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, found, entry) { | |
4a6bb6d3 | 3683 | if (found->key.pport != rocker_port->pport) |
6c707945 SF |
3684 | continue; |
3685 | if (!found->learned) | |
3686 | continue; | |
c4f20321 | 3687 | err = rocker_port_fdb_learn(rocker_port, trans, flags, |
6c707945 SF |
3688 | found->key.addr, |
3689 | found->key.vlan_id); | |
3690 | if (err) | |
3691 | goto err_out; | |
3098ac39 SH |
3692 | if (trans != SWITCHDEV_TRANS_PREPARE) |
3693 | hash_del(&found->entry); | |
6c707945 SF |
3694 | } |
3695 | ||
3696 | err_out: | |
3697 | spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags); | |
3698 | ||
3699 | return err; | |
3700 | } | |
3701 | ||
9f6bbf7c | 3702 | static int rocker_port_router_mac(struct rocker_port *rocker_port, |
c4f20321 SF |
3703 | enum switchdev_trans trans, int flags, |
3704 | __be16 vlan_id) | |
9f6bbf7c | 3705 | { |
4a6bb6d3 | 3706 | u32 in_pport_mask = 0xffffffff; |
9f6bbf7c SF |
3707 | __be16 eth_type; |
3708 | const u8 *dst_mac_mask = ff_mac; | |
3709 | __be16 vlan_id_mask = htons(0xffff); | |
3710 | bool copy_to_cpu = false; | |
3711 | int err; | |
3712 | ||
3713 | if (ntohs(vlan_id) == 0) | |
3714 | vlan_id = rocker_port->internal_vlan_id; | |
3715 | ||
3716 | eth_type = htons(ETH_P_IP); | |
c4f20321 | 3717 | err = rocker_flow_tbl_term_mac(rocker_port, trans, |
4a6bb6d3 | 3718 | rocker_port->pport, in_pport_mask, |
9f6bbf7c SF |
3719 | eth_type, rocker_port->dev->dev_addr, |
3720 | dst_mac_mask, vlan_id, vlan_id_mask, | |
3721 | copy_to_cpu, flags); | |
3722 | if (err) | |
3723 | return err; | |
3724 | ||
3725 | eth_type = htons(ETH_P_IPV6); | |
c4f20321 | 3726 | err = rocker_flow_tbl_term_mac(rocker_port, trans, |
4a6bb6d3 | 3727 | rocker_port->pport, in_pport_mask, |
9f6bbf7c SF |
3728 | eth_type, rocker_port->dev->dev_addr, |
3729 | dst_mac_mask, vlan_id, vlan_id_mask, | |
3730 | copy_to_cpu, flags); | |
3731 | ||
3732 | return err; | |
3733 | } | |
3734 | ||
c4f20321 | 3735 | static int rocker_port_fwding(struct rocker_port *rocker_port, |
179f9a25 | 3736 | enum switchdev_trans trans, int flags) |
6c707945 SF |
3737 | { |
3738 | bool pop_vlan; | |
4a6bb6d3 | 3739 | u32 out_pport; |
6c707945 SF |
3740 | __be16 vlan_id; |
3741 | u16 vid; | |
6c707945 SF |
3742 | int err; |
3743 | ||
3744 | /* Port will be forwarding-enabled if its STP state is LEARNING | |
3745 | * or FORWARDING. Traffic from CPU can still egress, regardless of | |
3746 | * port STP state. Use L2 interface group on port VLANs as a way | |
3747 | * to toggle port forwarding: if forwarding is disabled, L2 | |
3748 | * interface group will not exist. | |
3749 | */ | |
3750 | ||
3751 | if (rocker_port->stp_state != BR_STATE_LEARNING && | |
3752 | rocker_port->stp_state != BR_STATE_FORWARDING) | |
3753 | flags |= ROCKER_OP_FLAG_REMOVE; | |
3754 | ||
4a6bb6d3 | 3755 | out_pport = rocker_port->pport; |
6c707945 SF |
3756 | for (vid = 1; vid < VLAN_N_VID; vid++) { |
3757 | if (!test_bit(vid, rocker_port->vlan_bitmap)) | |
3758 | continue; | |
3759 | vlan_id = htons(vid); | |
3760 | pop_vlan = rocker_vlan_id_is_internal(vlan_id); | |
c4f20321 SF |
3761 | err = rocker_group_l2_interface(rocker_port, trans, flags, |
3762 | vlan_id, out_pport, pop_vlan); | |
6c707945 SF |
3763 | if (err) { |
3764 | netdev_err(rocker_port->dev, | |
4a6bb6d3 SF |
3765 | "Error (%d) port VLAN l2 group for pport %d\n", |
3766 | err, out_pport); | |
6c707945 SF |
3767 | return err; |
3768 | } | |
3769 | } | |
3770 | ||
3771 | return 0; | |
3772 | } | |
3773 | ||
c4f20321 | 3774 | static int rocker_port_stp_update(struct rocker_port *rocker_port, |
179f9a25 SF |
3775 | enum switchdev_trans trans, int flags, |
3776 | u8 state) | |
6c707945 SF |
3777 | { |
3778 | bool want[ROCKER_CTRL_MAX] = { 0, }; | |
c4f20321 SF |
3779 | bool prev_ctrls[ROCKER_CTRL_MAX]; |
3780 | u8 prev_state; | |
6c707945 SF |
3781 | int err; |
3782 | int i; | |
3783 | ||
c4f20321 SF |
3784 | if (trans == SWITCHDEV_TRANS_PREPARE) { |
3785 | memcpy(prev_ctrls, rocker_port->ctrls, sizeof(prev_ctrls)); | |
3786 | prev_state = rocker_port->stp_state; | |
3787 | } | |
3788 | ||
6c707945 SF |
3789 | if (rocker_port->stp_state == state) |
3790 | return 0; | |
3791 | ||
3792 | rocker_port->stp_state = state; | |
3793 | ||
3794 | switch (state) { | |
3795 | case BR_STATE_DISABLED: | |
3796 | /* port is completely disabled */ | |
3797 | break; | |
3798 | case BR_STATE_LISTENING: | |
3799 | case BR_STATE_BLOCKING: | |
3800 | want[ROCKER_CTRL_LINK_LOCAL_MCAST] = true; | |
3801 | break; | |
3802 | case BR_STATE_LEARNING: | |
3803 | case BR_STATE_FORWARDING: | |
8254973f SH |
3804 | if (!rocker_port_is_ovsed(rocker_port)) |
3805 | want[ROCKER_CTRL_LINK_LOCAL_MCAST] = true; | |
6c707945 SF |
3806 | want[ROCKER_CTRL_IPV4_MCAST] = true; |
3807 | want[ROCKER_CTRL_IPV6_MCAST] = true; | |
3808 | if (rocker_port_is_bridged(rocker_port)) | |
3809 | want[ROCKER_CTRL_DFLT_BRIDGING] = true; | |
8254973f SH |
3810 | else if (rocker_port_is_ovsed(rocker_port)) |
3811 | want[ROCKER_CTRL_DFLT_OVS] = true; | |
6c707945 SF |
3812 | else |
3813 | want[ROCKER_CTRL_LOCAL_ARP] = true; | |
3814 | break; | |
3815 | } | |
3816 | ||
3817 | for (i = 0; i < ROCKER_CTRL_MAX; i++) { | |
3818 | if (want[i] != rocker_port->ctrls[i]) { | |
179f9a25 SF |
3819 | int ctrl_flags = flags | |
3820 | (want[i] ? 0 : ROCKER_OP_FLAG_REMOVE); | |
3821 | err = rocker_port_ctrl(rocker_port, trans, ctrl_flags, | |
6c707945 SF |
3822 | &rocker_ctrls[i]); |
3823 | if (err) | |
c4f20321 | 3824 | goto err_out; |
6c707945 SF |
3825 | rocker_port->ctrls[i] = want[i]; |
3826 | } | |
3827 | } | |
3828 | ||
179f9a25 | 3829 | err = rocker_port_fdb_flush(rocker_port, trans, flags); |
6c707945 | 3830 | if (err) |
c4f20321 | 3831 | goto err_out; |
6c707945 | 3832 | |
179f9a25 | 3833 | err = rocker_port_fwding(rocker_port, trans, flags); |
c4f20321 SF |
3834 | |
3835 | err_out: | |
3836 | if (trans == SWITCHDEV_TRANS_PREPARE) { | |
3837 | memcpy(rocker_port->ctrls, prev_ctrls, sizeof(prev_ctrls)); | |
3838 | rocker_port->stp_state = prev_state; | |
3839 | } | |
3840 | ||
3841 | return err; | |
6c707945 SF |
3842 | } |
3843 | ||
c4f20321 | 3844 | static int rocker_port_fwd_enable(struct rocker_port *rocker_port, |
179f9a25 | 3845 | enum switchdev_trans trans, int flags) |
e47172ab SF |
3846 | { |
3847 | if (rocker_port_is_bridged(rocker_port)) | |
3848 | /* bridge STP will enable port */ | |
3849 | return 0; | |
3850 | ||
3851 | /* port is not bridged, so simulate going to FORWARDING state */ | |
179f9a25 SF |
3852 | return rocker_port_stp_update(rocker_port, trans, flags, |
3853 | BR_STATE_FORWARDING); | |
e47172ab SF |
3854 | } |
3855 | ||
c4f20321 | 3856 | static int rocker_port_fwd_disable(struct rocker_port *rocker_port, |
179f9a25 | 3857 | enum switchdev_trans trans, int flags) |
e47172ab SF |
3858 | { |
3859 | if (rocker_port_is_bridged(rocker_port)) | |
3860 | /* bridge STP will disable port */ | |
3861 | return 0; | |
3862 | ||
3863 | /* port is not bridged, so simulate going to DISABLED state */ | |
179f9a25 SF |
3864 | return rocker_port_stp_update(rocker_port, trans, flags, |
3865 | BR_STATE_DISABLED); | |
e47172ab SF |
3866 | } |
3867 | ||
9f6bbf7c | 3868 | static struct rocker_internal_vlan_tbl_entry * |
e5054643 | 3869 | rocker_internal_vlan_tbl_find(const struct rocker *rocker, int ifindex) |
9f6bbf7c SF |
3870 | { |
3871 | struct rocker_internal_vlan_tbl_entry *found; | |
3872 | ||
3873 | hash_for_each_possible(rocker->internal_vlan_tbl, found, | |
3874 | entry, ifindex) { | |
3875 | if (found->ifindex == ifindex) | |
3876 | return found; | |
3877 | } | |
3878 | ||
3879 | return NULL; | |
3880 | } | |
3881 | ||
3882 | static __be16 rocker_port_internal_vlan_id_get(struct rocker_port *rocker_port, | |
3883 | int ifindex) | |
3884 | { | |
3885 | struct rocker *rocker = rocker_port->rocker; | |
3886 | struct rocker_internal_vlan_tbl_entry *entry; | |
3887 | struct rocker_internal_vlan_tbl_entry *found; | |
3888 | unsigned long lock_flags; | |
3889 | int i; | |
3890 | ||
df6a2067 | 3891 | entry = kzalloc(sizeof(*entry), GFP_KERNEL); |
9f6bbf7c SF |
3892 | if (!entry) |
3893 | return 0; | |
3894 | ||
3895 | entry->ifindex = ifindex; | |
3896 | ||
3897 | spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, lock_flags); | |
3898 | ||
3899 | found = rocker_internal_vlan_tbl_find(rocker, ifindex); | |
3900 | if (found) { | |
df6a2067 | 3901 | kfree(entry); |
9f6bbf7c SF |
3902 | goto found; |
3903 | } | |
3904 | ||
3905 | found = entry; | |
3906 | hash_add(rocker->internal_vlan_tbl, &found->entry, found->ifindex); | |
3907 | ||
3908 | for (i = 0; i < ROCKER_N_INTERNAL_VLANS; i++) { | |
3909 | if (test_and_set_bit(i, rocker->internal_vlan_bitmap)) | |
3910 | continue; | |
3911 | found->vlan_id = htons(ROCKER_INTERNAL_VLAN_ID_BASE + i); | |
3912 | goto found; | |
3913 | } | |
3914 | ||
3915 | netdev_err(rocker_port->dev, "Out of internal VLAN IDs\n"); | |
3916 | ||
3917 | found: | |
3918 | found->ref_count++; | |
3919 | spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, lock_flags); | |
3920 | ||
3921 | return found->vlan_id; | |
3922 | } | |
3923 | ||
e5054643 SH |
3924 | static void |
3925 | rocker_port_internal_vlan_id_put(const struct rocker_port *rocker_port, | |
3926 | int ifindex) | |
9f6bbf7c SF |
3927 | { |
3928 | struct rocker *rocker = rocker_port->rocker; | |
3929 | struct rocker_internal_vlan_tbl_entry *found; | |
3930 | unsigned long lock_flags; | |
3931 | unsigned long bit; | |
3932 | ||
3933 | spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, lock_flags); | |
3934 | ||
3935 | found = rocker_internal_vlan_tbl_find(rocker, ifindex); | |
3936 | if (!found) { | |
3937 | netdev_err(rocker_port->dev, | |
3938 | "ifindex (%d) not found in internal VLAN tbl\n", | |
3939 | ifindex); | |
3940 | goto not_found; | |
3941 | } | |
3942 | ||
3943 | if (--found->ref_count <= 0) { | |
3944 | bit = ntohs(found->vlan_id) - ROCKER_INTERNAL_VLAN_ID_BASE; | |
3945 | clear_bit(bit, rocker->internal_vlan_bitmap); | |
3946 | hash_del(&found->entry); | |
df6a2067 | 3947 | kfree(found); |
9f6bbf7c SF |
3948 | } |
3949 | ||
3950 | not_found: | |
3951 | spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, lock_flags); | |
3952 | } | |
3953 | ||
c4f20321 SF |
3954 | static int rocker_port_fib_ipv4(struct rocker_port *rocker_port, |
3955 | enum switchdev_trans trans, __be32 dst, | |
e5054643 SH |
3956 | int dst_len, const struct fib_info *fi, |
3957 | u32 tb_id, int flags) | |
c1beeef7 | 3958 | { |
e5054643 | 3959 | const struct fib_nh *nh; |
c1beeef7 SF |
3960 | __be16 eth_type = htons(ETH_P_IP); |
3961 | __be32 dst_mask = inet_make_mask(dst_len); | |
3962 | __be16 internal_vlan_id = rocker_port->internal_vlan_id; | |
3963 | u32 priority = fi->fib_priority; | |
3964 | enum rocker_of_dpa_table_id goto_tbl = | |
3965 | ROCKER_OF_DPA_TABLE_ID_ACL_POLICY; | |
3966 | u32 group_id; | |
3967 | bool nh_on_port; | |
3968 | bool has_gw; | |
3969 | u32 index; | |
3970 | int err; | |
3971 | ||
3972 | /* XXX support ECMP */ | |
3973 | ||
3974 | nh = fi->fib_nh; | |
3975 | nh_on_port = (fi->fib_dev == rocker_port->dev); | |
3976 | has_gw = !!nh->nh_gw; | |
3977 | ||
3978 | if (has_gw && nh_on_port) { | |
c4f20321 | 3979 | err = rocker_port_ipv4_nh(rocker_port, trans, flags, |
c1beeef7 SF |
3980 | nh->nh_gw, &index); |
3981 | if (err) | |
3982 | return err; | |
3983 | ||
3984 | group_id = ROCKER_GROUP_L3_UNICAST(index); | |
3985 | } else { | |
3986 | /* Send to CPU for processing */ | |
3987 | group_id = ROCKER_GROUP_L2_INTERFACE(internal_vlan_id, 0); | |
3988 | } | |
3989 | ||
c4f20321 | 3990 | err = rocker_flow_tbl_ucast4_routing(rocker_port, trans, eth_type, dst, |
c1beeef7 SF |
3991 | dst_mask, priority, goto_tbl, |
3992 | group_id, flags); | |
3993 | if (err) | |
3994 | netdev_err(rocker_port->dev, "Error (%d) IPv4 route %pI4\n", | |
3995 | err, &dst); | |
3996 | ||
3997 | return err; | |
3998 | } | |
3999 | ||
4b8ac966 JP |
4000 | /***************** |
4001 | * Net device ops | |
4002 | *****************/ | |
4003 | ||
4004 | static int rocker_port_open(struct net_device *dev) | |
4005 | { | |
4006 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4007 | int err; | |
4008 | ||
4009 | err = rocker_port_dma_rings_init(rocker_port); | |
4010 | if (err) | |
4011 | return err; | |
4012 | ||
4013 | err = request_irq(rocker_msix_tx_vector(rocker_port), | |
4014 | rocker_tx_irq_handler, 0, | |
4015 | rocker_driver_name, rocker_port); | |
4016 | if (err) { | |
4017 | netdev_err(rocker_port->dev, "cannot assign tx irq\n"); | |
4018 | goto err_request_tx_irq; | |
4019 | } | |
4020 | ||
4021 | err = request_irq(rocker_msix_rx_vector(rocker_port), | |
4022 | rocker_rx_irq_handler, 0, | |
4023 | rocker_driver_name, rocker_port); | |
4024 | if (err) { | |
4025 | netdev_err(rocker_port->dev, "cannot assign rx irq\n"); | |
4026 | goto err_request_rx_irq; | |
4027 | } | |
4028 | ||
179f9a25 | 4029 | err = rocker_port_fwd_enable(rocker_port, SWITCHDEV_TRANS_NONE, 0); |
6c707945 | 4030 | if (err) |
e47172ab | 4031 | goto err_fwd_enable; |
6c707945 | 4032 | |
4b8ac966 JP |
4033 | napi_enable(&rocker_port->napi_tx); |
4034 | napi_enable(&rocker_port->napi_rx); | |
c3055246 AK |
4035 | if (!dev->proto_down) |
4036 | rocker_port_set_enable(rocker_port, true); | |
4b8ac966 JP |
4037 | netif_start_queue(dev); |
4038 | return 0; | |
4039 | ||
e47172ab | 4040 | err_fwd_enable: |
6c707945 | 4041 | free_irq(rocker_msix_rx_vector(rocker_port), rocker_port); |
4b8ac966 JP |
4042 | err_request_rx_irq: |
4043 | free_irq(rocker_msix_tx_vector(rocker_port), rocker_port); | |
4044 | err_request_tx_irq: | |
4045 | rocker_port_dma_rings_fini(rocker_port); | |
4046 | return err; | |
4047 | } | |
4048 | ||
4049 | static int rocker_port_stop(struct net_device *dev) | |
4050 | { | |
4051 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4052 | ||
4053 | netif_stop_queue(dev); | |
4054 | rocker_port_set_enable(rocker_port, false); | |
4055 | napi_disable(&rocker_port->napi_rx); | |
4056 | napi_disable(&rocker_port->napi_tx); | |
f66feaa9 SF |
4057 | rocker_port_fwd_disable(rocker_port, SWITCHDEV_TRANS_NONE, |
4058 | ROCKER_OP_FLAG_NOWAIT); | |
4b8ac966 JP |
4059 | free_irq(rocker_msix_rx_vector(rocker_port), rocker_port); |
4060 | free_irq(rocker_msix_tx_vector(rocker_port), rocker_port); | |
4061 | rocker_port_dma_rings_fini(rocker_port); | |
4062 | ||
4063 | return 0; | |
4064 | } | |
4065 | ||
e5054643 SH |
4066 | static void rocker_tx_desc_frags_unmap(const struct rocker_port *rocker_port, |
4067 | const struct rocker_desc_info *desc_info) | |
4b8ac966 | 4068 | { |
e5054643 | 4069 | const struct rocker *rocker = rocker_port->rocker; |
4b8ac966 | 4070 | struct pci_dev *pdev = rocker->pdev; |
e5054643 | 4071 | const struct rocker_tlv *attrs[ROCKER_TLV_TX_MAX + 1]; |
4b8ac966 JP |
4072 | struct rocker_tlv *attr; |
4073 | int rem; | |
4074 | ||
4075 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_TX_MAX, desc_info); | |
4076 | if (!attrs[ROCKER_TLV_TX_FRAGS]) | |
4077 | return; | |
4078 | rocker_tlv_for_each_nested(attr, attrs[ROCKER_TLV_TX_FRAGS], rem) { | |
e5054643 | 4079 | const struct rocker_tlv *frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_MAX + 1]; |
4b8ac966 JP |
4080 | dma_addr_t dma_handle; |
4081 | size_t len; | |
4082 | ||
4083 | if (rocker_tlv_type(attr) != ROCKER_TLV_TX_FRAG) | |
4084 | continue; | |
4085 | rocker_tlv_parse_nested(frag_attrs, ROCKER_TLV_TX_FRAG_ATTR_MAX, | |
4086 | attr); | |
4087 | if (!frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_ADDR] || | |
4088 | !frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_LEN]) | |
4089 | continue; | |
4090 | dma_handle = rocker_tlv_get_u64(frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_ADDR]); | |
4091 | len = rocker_tlv_get_u16(frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_LEN]); | |
4092 | pci_unmap_single(pdev, dma_handle, len, DMA_TO_DEVICE); | |
4093 | } | |
4094 | } | |
4095 | ||
e5054643 | 4096 | static int rocker_tx_desc_frag_map_put(const struct rocker_port *rocker_port, |
4b8ac966 JP |
4097 | struct rocker_desc_info *desc_info, |
4098 | char *buf, size_t buf_len) | |
4099 | { | |
e5054643 | 4100 | const struct rocker *rocker = rocker_port->rocker; |
4b8ac966 JP |
4101 | struct pci_dev *pdev = rocker->pdev; |
4102 | dma_addr_t dma_handle; | |
4103 | struct rocker_tlv *frag; | |
4104 | ||
4105 | dma_handle = pci_map_single(pdev, buf, buf_len, DMA_TO_DEVICE); | |
4106 | if (unlikely(pci_dma_mapping_error(pdev, dma_handle))) { | |
4107 | if (net_ratelimit()) | |
4108 | netdev_err(rocker_port->dev, "failed to dma map tx frag\n"); | |
4109 | return -EIO; | |
4110 | } | |
4111 | frag = rocker_tlv_nest_start(desc_info, ROCKER_TLV_TX_FRAG); | |
4112 | if (!frag) | |
4113 | goto unmap_frag; | |
4114 | if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_TX_FRAG_ATTR_ADDR, | |
4115 | dma_handle)) | |
4116 | goto nest_cancel; | |
4117 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_TX_FRAG_ATTR_LEN, | |
4118 | buf_len)) | |
4119 | goto nest_cancel; | |
4120 | rocker_tlv_nest_end(desc_info, frag); | |
4121 | return 0; | |
4122 | ||
4123 | nest_cancel: | |
4124 | rocker_tlv_nest_cancel(desc_info, frag); | |
4125 | unmap_frag: | |
4126 | pci_unmap_single(pdev, dma_handle, buf_len, DMA_TO_DEVICE); | |
4127 | return -EMSGSIZE; | |
4128 | } | |
4129 | ||
4130 | static netdev_tx_t rocker_port_xmit(struct sk_buff *skb, struct net_device *dev) | |
4131 | { | |
4132 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4133 | struct rocker *rocker = rocker_port->rocker; | |
4134 | struct rocker_desc_info *desc_info; | |
4135 | struct rocker_tlv *frags; | |
4136 | int i; | |
4137 | int err; | |
4138 | ||
4139 | desc_info = rocker_desc_head_get(&rocker_port->tx_ring); | |
4140 | if (unlikely(!desc_info)) { | |
4141 | if (net_ratelimit()) | |
4142 | netdev_err(dev, "tx ring full when queue awake\n"); | |
4143 | return NETDEV_TX_BUSY; | |
4144 | } | |
4145 | ||
4146 | rocker_desc_cookie_ptr_set(desc_info, skb); | |
4147 | ||
4148 | frags = rocker_tlv_nest_start(desc_info, ROCKER_TLV_TX_FRAGS); | |
4149 | if (!frags) | |
4150 | goto out; | |
4151 | err = rocker_tx_desc_frag_map_put(rocker_port, desc_info, | |
4152 | skb->data, skb_headlen(skb)); | |
4153 | if (err) | |
4154 | goto nest_cancel; | |
95b9be64 JP |
4155 | if (skb_shinfo(skb)->nr_frags > ROCKER_TX_FRAGS_MAX) { |
4156 | err = skb_linearize(skb); | |
4157 | if (err) | |
4158 | goto unmap_frags; | |
4159 | } | |
4b8ac966 JP |
4160 | |
4161 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { | |
4162 | const skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
4163 | ||
4164 | err = rocker_tx_desc_frag_map_put(rocker_port, desc_info, | |
4165 | skb_frag_address(frag), | |
4166 | skb_frag_size(frag)); | |
4167 | if (err) | |
4168 | goto unmap_frags; | |
4169 | } | |
4170 | rocker_tlv_nest_end(desc_info, frags); | |
4171 | ||
4172 | rocker_desc_gen_clear(desc_info); | |
4173 | rocker_desc_head_set(rocker, &rocker_port->tx_ring, desc_info); | |
4174 | ||
4175 | desc_info = rocker_desc_head_get(&rocker_port->tx_ring); | |
4176 | if (!desc_info) | |
4177 | netif_stop_queue(dev); | |
4178 | ||
4179 | return NETDEV_TX_OK; | |
4180 | ||
4181 | unmap_frags: | |
4182 | rocker_tx_desc_frags_unmap(rocker_port, desc_info); | |
4183 | nest_cancel: | |
4184 | rocker_tlv_nest_cancel(desc_info, frags); | |
4185 | out: | |
4186 | dev_kfree_skb(skb); | |
f2bbca51 DA |
4187 | dev->stats.tx_dropped++; |
4188 | ||
4b8ac966 JP |
4189 | return NETDEV_TX_OK; |
4190 | } | |
4191 | ||
4192 | static int rocker_port_set_mac_address(struct net_device *dev, void *p) | |
4193 | { | |
4194 | struct sockaddr *addr = p; | |
4195 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4196 | int err; | |
4197 | ||
4198 | if (!is_valid_ether_addr(addr->sa_data)) | |
4199 | return -EADDRNOTAVAIL; | |
4200 | ||
4201 | err = rocker_cmd_set_port_settings_macaddr(rocker_port, addr->sa_data); | |
4202 | if (err) | |
4203 | return err; | |
4204 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); | |
4205 | return 0; | |
4206 | } | |
4207 | ||
77a58c74 SF |
4208 | static int rocker_port_change_mtu(struct net_device *dev, int new_mtu) |
4209 | { | |
4210 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4211 | int running = netif_running(dev); | |
4212 | int err; | |
4213 | ||
4214 | #define ROCKER_PORT_MIN_MTU 68 | |
4215 | #define ROCKER_PORT_MAX_MTU 9000 | |
4216 | ||
4217 | if (new_mtu < ROCKER_PORT_MIN_MTU || new_mtu > ROCKER_PORT_MAX_MTU) | |
4218 | return -EINVAL; | |
4219 | ||
4220 | if (running) | |
4221 | rocker_port_stop(dev); | |
4222 | ||
4223 | netdev_info(dev, "MTU change from %d to %d\n", dev->mtu, new_mtu); | |
4224 | dev->mtu = new_mtu; | |
4225 | ||
4226 | err = rocker_cmd_set_port_settings_mtu(rocker_port, new_mtu); | |
4227 | if (err) | |
4228 | return err; | |
4229 | ||
4230 | if (running) | |
4231 | err = rocker_port_open(dev); | |
4232 | ||
4233 | return err; | |
4234 | } | |
4235 | ||
db19170b DA |
4236 | static int rocker_port_get_phys_port_name(struct net_device *dev, |
4237 | char *buf, size_t len) | |
4238 | { | |
4239 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4240 | struct port_name name = { .buf = buf, .len = len }; | |
4241 | int err; | |
4242 | ||
179f9a25 | 4243 | err = rocker_cmd_exec(rocker_port, SWITCHDEV_TRANS_NONE, 0, |
db19170b DA |
4244 | rocker_cmd_get_port_settings_prep, NULL, |
4245 | rocker_cmd_get_port_settings_phys_name_proc, | |
c4f20321 | 4246 | &name); |
db19170b DA |
4247 | |
4248 | return err ? -EOPNOTSUPP : 0; | |
4249 | } | |
4250 | ||
c3055246 AK |
4251 | static int rocker_port_change_proto_down(struct net_device *dev, |
4252 | bool proto_down) | |
4253 | { | |
4254 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4255 | ||
4256 | if (rocker_port->dev->flags & IFF_UP) | |
4257 | rocker_port_set_enable(rocker_port, !proto_down); | |
4258 | rocker_port->dev->proto_down = proto_down; | |
4259 | return 0; | |
4260 | } | |
4261 | ||
dd19f83d SF |
4262 | static void rocker_port_neigh_destroy(struct neighbour *n) |
4263 | { | |
4264 | struct rocker_port *rocker_port = netdev_priv(n->dev); | |
4265 | int flags = ROCKER_OP_FLAG_REMOVE | ROCKER_OP_FLAG_NOWAIT; | |
4266 | __be32 ip_addr = *(__be32 *)n->primary_key; | |
4267 | ||
4268 | rocker_port_ipv4_neigh(rocker_port, SWITCHDEV_TRANS_NONE, | |
4269 | flags, ip_addr, n->ha); | |
4270 | } | |
4271 | ||
98237d43 SF |
4272 | static const struct net_device_ops rocker_port_netdev_ops = { |
4273 | .ndo_open = rocker_port_open, | |
4274 | .ndo_stop = rocker_port_stop, | |
4275 | .ndo_start_xmit = rocker_port_xmit, | |
4276 | .ndo_set_mac_address = rocker_port_set_mac_address, | |
77a58c74 | 4277 | .ndo_change_mtu = rocker_port_change_mtu, |
85fdb956 | 4278 | .ndo_bridge_getlink = switchdev_port_bridge_getlink, |
fc8f40d8 | 4279 | .ndo_bridge_setlink = switchdev_port_bridge_setlink, |
54ba5a0b | 4280 | .ndo_bridge_dellink = switchdev_port_bridge_dellink, |
45d4122c SS |
4281 | .ndo_fdb_add = switchdev_port_fdb_add, |
4282 | .ndo_fdb_del = switchdev_port_fdb_del, | |
4283 | .ndo_fdb_dump = switchdev_port_fdb_dump, | |
db19170b | 4284 | .ndo_get_phys_port_name = rocker_port_get_phys_port_name, |
c3055246 | 4285 | .ndo_change_proto_down = rocker_port_change_proto_down, |
dd19f83d | 4286 | .ndo_neigh_destroy = rocker_port_neigh_destroy, |
98237d43 SF |
4287 | }; |
4288 | ||
4289 | /******************** | |
4290 | * swdev interface | |
4291 | ********************/ | |
4292 | ||
f8e20a9f SF |
4293 | static int rocker_port_attr_get(struct net_device *dev, |
4294 | struct switchdev_attr *attr) | |
4b8ac966 | 4295 | { |
e5054643 SH |
4296 | const struct rocker_port *rocker_port = netdev_priv(dev); |
4297 | const struct rocker *rocker = rocker_port->rocker; | |
4b8ac966 | 4298 | |
f8e20a9f SF |
4299 | switch (attr->id) { |
4300 | case SWITCHDEV_ATTR_PORT_PARENT_ID: | |
42275bd8 SF |
4301 | attr->u.ppid.id_len = sizeof(rocker->hw.id); |
4302 | memcpy(&attr->u.ppid.id, &rocker->hw.id, attr->u.ppid.id_len); | |
f8e20a9f | 4303 | break; |
6004c867 | 4304 | case SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS: |
42275bd8 | 4305 | attr->u.brport_flags = rocker_port->brport_flags; |
6004c867 | 4306 | break; |
f8e20a9f SF |
4307 | default: |
4308 | return -EOPNOTSUPP; | |
4309 | } | |
4310 | ||
4b8ac966 JP |
4311 | return 0; |
4312 | } | |
4313 | ||
e5054643 | 4314 | static void rocker_port_trans_abort(const struct rocker_port *rocker_port) |
c4f20321 SF |
4315 | { |
4316 | struct list_head *mem, *tmp; | |
4317 | ||
4318 | list_for_each_safe(mem, tmp, &rocker_port->trans_mem) { | |
4319 | list_del(mem); | |
4320 | kfree(mem); | |
4321 | } | |
4322 | } | |
4323 | ||
6004c867 SF |
4324 | static int rocker_port_brport_flags_set(struct rocker_port *rocker_port, |
4325 | enum switchdev_trans trans, | |
4326 | unsigned long brport_flags) | |
4327 | { | |
4328 | unsigned long orig_flags; | |
4329 | int err = 0; | |
4330 | ||
4331 | orig_flags = rocker_port->brport_flags; | |
4332 | rocker_port->brport_flags = brport_flags; | |
4333 | if ((orig_flags ^ rocker_port->brport_flags) & BR_LEARNING) | |
4334 | err = rocker_port_set_learning(rocker_port, trans); | |
4335 | ||
4336 | if (trans == SWITCHDEV_TRANS_PREPARE) | |
4337 | rocker_port->brport_flags = orig_flags; | |
4338 | ||
4339 | return err; | |
4340 | } | |
4341 | ||
c4f20321 SF |
4342 | static int rocker_port_attr_set(struct net_device *dev, |
4343 | struct switchdev_attr *attr) | |
4344 | { | |
4345 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4346 | int err = 0; | |
4347 | ||
4348 | switch (attr->trans) { | |
4349 | case SWITCHDEV_TRANS_PREPARE: | |
4350 | BUG_ON(!list_empty(&rocker_port->trans_mem)); | |
4351 | break; | |
4352 | case SWITCHDEV_TRANS_ABORT: | |
4353 | rocker_port_trans_abort(rocker_port); | |
4354 | return 0; | |
4355 | default: | |
4356 | break; | |
4357 | } | |
4358 | ||
4359 | switch (attr->id) { | |
35636062 | 4360 | case SWITCHDEV_ATTR_PORT_STP_STATE: |
ac28393e SF |
4361 | err = rocker_port_stp_update(rocker_port, attr->trans, |
4362 | ROCKER_OP_FLAG_NOWAIT, | |
42275bd8 | 4363 | attr->u.stp_state); |
35636062 | 4364 | break; |
6004c867 SF |
4365 | case SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS: |
4366 | err = rocker_port_brport_flags_set(rocker_port, attr->trans, | |
42275bd8 | 4367 | attr->u.brport_flags); |
6004c867 | 4368 | break; |
c4f20321 SF |
4369 | default: |
4370 | err = -EOPNOTSUPP; | |
4371 | break; | |
4372 | } | |
4373 | ||
4374 | return err; | |
6c707945 SF |
4375 | } |
4376 | ||
9228ad26 SF |
4377 | static int rocker_port_vlan_add(struct rocker_port *rocker_port, |
4378 | enum switchdev_trans trans, u16 vid, u16 flags) | |
4379 | { | |
4380 | int err; | |
4381 | ||
4382 | /* XXX deal with flags for PVID and untagged */ | |
4383 | ||
4384 | err = rocker_port_vlan(rocker_port, trans, 0, vid); | |
4385 | if (err) | |
4386 | return err; | |
4387 | ||
cec04a60 SF |
4388 | err = rocker_port_router_mac(rocker_port, trans, 0, htons(vid)); |
4389 | if (err) | |
4390 | rocker_port_vlan(rocker_port, trans, | |
4391 | ROCKER_OP_FLAG_REMOVE, vid); | |
4392 | ||
4393 | return err; | |
9228ad26 SF |
4394 | } |
4395 | ||
4396 | static int rocker_port_vlans_add(struct rocker_port *rocker_port, | |
4397 | enum switchdev_trans trans, | |
e5054643 | 4398 | const struct switchdev_obj_vlan *vlan) |
9228ad26 SF |
4399 | { |
4400 | u16 vid; | |
4401 | int err; | |
4402 | ||
3e3a78b4 | 4403 | for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) { |
9228ad26 SF |
4404 | err = rocker_port_vlan_add(rocker_port, trans, |
4405 | vid, vlan->flags); | |
4406 | if (err) | |
4407 | return err; | |
4408 | } | |
4409 | ||
4410 | return 0; | |
4411 | } | |
4412 | ||
45d4122c SS |
4413 | static int rocker_port_fdb_add(struct rocker_port *rocker_port, |
4414 | enum switchdev_trans trans, | |
e5054643 | 4415 | const struct switchdev_obj_fdb *fdb) |
45d4122c SS |
4416 | { |
4417 | __be16 vlan_id = rocker_port_vid_to_vlan(rocker_port, fdb->vid, NULL); | |
4418 | int flags = 0; | |
4419 | ||
4420 | if (!rocker_port_is_bridged(rocker_port)) | |
4421 | return -EINVAL; | |
4422 | ||
4423 | return rocker_port_fdb(rocker_port, trans, fdb->addr, vlan_id, flags); | |
4424 | } | |
4425 | ||
9228ad26 SF |
4426 | static int rocker_port_obj_add(struct net_device *dev, |
4427 | struct switchdev_obj *obj) | |
4428 | { | |
4429 | struct rocker_port *rocker_port = netdev_priv(dev); | |
e5054643 | 4430 | const struct switchdev_obj_ipv4_fib *fib4; |
9228ad26 SF |
4431 | int err = 0; |
4432 | ||
4433 | switch (obj->trans) { | |
4434 | case SWITCHDEV_TRANS_PREPARE: | |
4435 | BUG_ON(!list_empty(&rocker_port->trans_mem)); | |
4436 | break; | |
4437 | case SWITCHDEV_TRANS_ABORT: | |
4438 | rocker_port_trans_abort(rocker_port); | |
4439 | return 0; | |
4440 | default: | |
4441 | break; | |
4442 | } | |
4443 | ||
4444 | switch (obj->id) { | |
4445 | case SWITCHDEV_OBJ_PORT_VLAN: | |
4446 | err = rocker_port_vlans_add(rocker_port, obj->trans, | |
42275bd8 | 4447 | &obj->u.vlan); |
9228ad26 | 4448 | break; |
58c2cb16 | 4449 | case SWITCHDEV_OBJ_IPV4_FIB: |
42275bd8 | 4450 | fib4 = &obj->u.ipv4_fib; |
58c2cb16 | 4451 | err = rocker_port_fib_ipv4(rocker_port, obj->trans, |
7a7ee531 | 4452 | htonl(fib4->dst), fib4->dst_len, |
58c2cb16 SF |
4453 | fib4->fi, fib4->tb_id, 0); |
4454 | break; | |
45d4122c SS |
4455 | case SWITCHDEV_OBJ_PORT_FDB: |
4456 | err = rocker_port_fdb_add(rocker_port, obj->trans, &obj->u.fdb); | |
4457 | break; | |
9228ad26 SF |
4458 | default: |
4459 | err = -EOPNOTSUPP; | |
4460 | break; | |
4461 | } | |
4462 | ||
4463 | return err; | |
4464 | } | |
4465 | ||
4466 | static int rocker_port_vlan_del(struct rocker_port *rocker_port, | |
4467 | u16 vid, u16 flags) | |
4468 | { | |
4469 | int err; | |
4470 | ||
4471 | err = rocker_port_router_mac(rocker_port, SWITCHDEV_TRANS_NONE, | |
4472 | ROCKER_OP_FLAG_REMOVE, htons(vid)); | |
4473 | if (err) | |
4474 | return err; | |
4475 | ||
4476 | return rocker_port_vlan(rocker_port, SWITCHDEV_TRANS_NONE, | |
4477 | ROCKER_OP_FLAG_REMOVE, vid); | |
4478 | } | |
4479 | ||
4480 | static int rocker_port_vlans_del(struct rocker_port *rocker_port, | |
e5054643 | 4481 | const struct switchdev_obj_vlan *vlan) |
9228ad26 SF |
4482 | { |
4483 | u16 vid; | |
4484 | int err; | |
4485 | ||
3e3a78b4 | 4486 | for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) { |
9228ad26 SF |
4487 | err = rocker_port_vlan_del(rocker_port, vid, vlan->flags); |
4488 | if (err) | |
4489 | return err; | |
4490 | } | |
4491 | ||
4492 | return 0; | |
4493 | } | |
4494 | ||
45d4122c SS |
4495 | static int rocker_port_fdb_del(struct rocker_port *rocker_port, |
4496 | enum switchdev_trans trans, | |
e5054643 | 4497 | const struct switchdev_obj_fdb *fdb) |
45d4122c SS |
4498 | { |
4499 | __be16 vlan_id = rocker_port_vid_to_vlan(rocker_port, fdb->vid, NULL); | |
b4ad7baa | 4500 | int flags = ROCKER_OP_FLAG_NOWAIT | ROCKER_OP_FLAG_REMOVE; |
45d4122c SS |
4501 | |
4502 | if (!rocker_port_is_bridged(rocker_port)) | |
4503 | return -EINVAL; | |
4504 | ||
4505 | return rocker_port_fdb(rocker_port, trans, fdb->addr, vlan_id, flags); | |
4506 | } | |
4507 | ||
9228ad26 SF |
4508 | static int rocker_port_obj_del(struct net_device *dev, |
4509 | struct switchdev_obj *obj) | |
4510 | { | |
4511 | struct rocker_port *rocker_port = netdev_priv(dev); | |
e5054643 | 4512 | const struct switchdev_obj_ipv4_fib *fib4; |
9228ad26 SF |
4513 | int err = 0; |
4514 | ||
4515 | switch (obj->id) { | |
4516 | case SWITCHDEV_OBJ_PORT_VLAN: | |
42275bd8 | 4517 | err = rocker_port_vlans_del(rocker_port, &obj->u.vlan); |
9228ad26 | 4518 | break; |
58c2cb16 | 4519 | case SWITCHDEV_OBJ_IPV4_FIB: |
42275bd8 | 4520 | fib4 = &obj->u.ipv4_fib; |
58c2cb16 | 4521 | err = rocker_port_fib_ipv4(rocker_port, SWITCHDEV_TRANS_NONE, |
7a7ee531 SF |
4522 | htonl(fib4->dst), fib4->dst_len, |
4523 | fib4->fi, fib4->tb_id, | |
4524 | ROCKER_OP_FLAG_REMOVE); | |
58c2cb16 | 4525 | break; |
45d4122c SS |
4526 | case SWITCHDEV_OBJ_PORT_FDB: |
4527 | err = rocker_port_fdb_del(rocker_port, obj->trans, &obj->u.fdb); | |
4528 | break; | |
4529 | default: | |
4530 | err = -EOPNOTSUPP; | |
4531 | break; | |
4532 | } | |
4533 | ||
4534 | return err; | |
4535 | } | |
4536 | ||
e5054643 | 4537 | static int rocker_port_fdb_dump(const struct rocker_port *rocker_port, |
45d4122c SS |
4538 | struct switchdev_obj *obj) |
4539 | { | |
4540 | struct rocker *rocker = rocker_port->rocker; | |
4541 | struct switchdev_obj_fdb *fdb = &obj->u.fdb; | |
4542 | struct rocker_fdb_tbl_entry *found; | |
4543 | struct hlist_node *tmp; | |
4544 | unsigned long lock_flags; | |
4545 | int bkt; | |
4546 | int err = 0; | |
4547 | ||
4548 | spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags); | |
4549 | hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, found, entry) { | |
4550 | if (found->key.pport != rocker_port->pport) | |
4551 | continue; | |
cdf09697 | 4552 | fdb->addr = found->key.addr; |
ce80e7bc | 4553 | fdb->ndm_state = NUD_REACHABLE; |
45d4122c SS |
4554 | fdb->vid = rocker_port_vlan_to_vid(rocker_port, |
4555 | found->key.vlan_id); | |
4556 | err = obj->cb(rocker_port->dev, obj); | |
4557 | if (err) | |
4558 | break; | |
4559 | } | |
4560 | spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags); | |
4561 | ||
4562 | return err; | |
4563 | } | |
4564 | ||
7d4f8d87 SF |
4565 | static int rocker_port_vlan_dump(const struct rocker_port *rocker_port, |
4566 | struct switchdev_obj *obj) | |
4567 | { | |
4568 | struct switchdev_obj_vlan *vlan = &obj->u.vlan; | |
4569 | u16 vid; | |
4570 | int err = 0; | |
4571 | ||
4572 | for (vid = 1; vid < VLAN_N_VID; vid++) { | |
4573 | if (!test_bit(vid, rocker_port->vlan_bitmap)) | |
4574 | continue; | |
4575 | vlan->flags = 0; | |
4576 | if (rocker_vlan_id_is_internal(htons(vid))) | |
4577 | vlan->flags |= BRIDGE_VLAN_INFO_PVID; | |
4578 | vlan->vid_begin = vlan->vid_end = vid; | |
4579 | err = obj->cb(rocker_port->dev, obj); | |
4580 | if (err) | |
4581 | break; | |
4582 | } | |
4583 | ||
4584 | return err; | |
4585 | } | |
4586 | ||
45d4122c SS |
4587 | static int rocker_port_obj_dump(struct net_device *dev, |
4588 | struct switchdev_obj *obj) | |
4589 | { | |
e5054643 | 4590 | const struct rocker_port *rocker_port = netdev_priv(dev); |
45d4122c SS |
4591 | int err = 0; |
4592 | ||
4593 | switch (obj->id) { | |
4594 | case SWITCHDEV_OBJ_PORT_FDB: | |
4595 | err = rocker_port_fdb_dump(rocker_port, obj); | |
4596 | break; | |
7d4f8d87 SF |
4597 | case SWITCHDEV_OBJ_PORT_VLAN: |
4598 | err = rocker_port_vlan_dump(rocker_port, obj); | |
4599 | break; | |
9228ad26 SF |
4600 | default: |
4601 | err = -EOPNOTSUPP; | |
4602 | break; | |
4603 | } | |
4604 | ||
4605 | return err; | |
4606 | } | |
4607 | ||
9d47c0a2 | 4608 | static const struct switchdev_ops rocker_port_switchdev_ops = { |
f8e20a9f | 4609 | .switchdev_port_attr_get = rocker_port_attr_get, |
35636062 | 4610 | .switchdev_port_attr_set = rocker_port_attr_set, |
9228ad26 SF |
4611 | .switchdev_port_obj_add = rocker_port_obj_add, |
4612 | .switchdev_port_obj_del = rocker_port_obj_del, | |
45d4122c | 4613 | .switchdev_port_obj_dump = rocker_port_obj_dump, |
4b8ac966 JP |
4614 | }; |
4615 | ||
4616 | /******************** | |
4617 | * ethtool interface | |
4618 | ********************/ | |
4619 | ||
4620 | static int rocker_port_get_settings(struct net_device *dev, | |
4621 | struct ethtool_cmd *ecmd) | |
4622 | { | |
4623 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4624 | ||
4625 | return rocker_cmd_get_port_settings_ethtool(rocker_port, ecmd); | |
4626 | } | |
4627 | ||
4628 | static int rocker_port_set_settings(struct net_device *dev, | |
4629 | struct ethtool_cmd *ecmd) | |
4630 | { | |
4631 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4632 | ||
4633 | return rocker_cmd_set_port_settings_ethtool(rocker_port, ecmd); | |
4634 | } | |
4635 | ||
4636 | static void rocker_port_get_drvinfo(struct net_device *dev, | |
4637 | struct ethtool_drvinfo *drvinfo) | |
4638 | { | |
4639 | strlcpy(drvinfo->driver, rocker_driver_name, sizeof(drvinfo->driver)); | |
4640 | strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version)); | |
4641 | } | |
4642 | ||
9766e97a DA |
4643 | static struct rocker_port_stats { |
4644 | char str[ETH_GSTRING_LEN]; | |
4645 | int type; | |
4646 | } rocker_port_stats[] = { | |
4647 | { "rx_packets", ROCKER_TLV_CMD_PORT_STATS_RX_PKTS, }, | |
4648 | { "rx_bytes", ROCKER_TLV_CMD_PORT_STATS_RX_BYTES, }, | |
4649 | { "rx_dropped", ROCKER_TLV_CMD_PORT_STATS_RX_DROPPED, }, | |
4650 | { "rx_errors", ROCKER_TLV_CMD_PORT_STATS_RX_ERRORS, }, | |
4651 | ||
4652 | { "tx_packets", ROCKER_TLV_CMD_PORT_STATS_TX_PKTS, }, | |
4653 | { "tx_bytes", ROCKER_TLV_CMD_PORT_STATS_TX_BYTES, }, | |
4654 | { "tx_dropped", ROCKER_TLV_CMD_PORT_STATS_TX_DROPPED, }, | |
4655 | { "tx_errors", ROCKER_TLV_CMD_PORT_STATS_TX_ERRORS, }, | |
4656 | }; | |
4657 | ||
4658 | #define ROCKER_PORT_STATS_LEN ARRAY_SIZE(rocker_port_stats) | |
4659 | ||
4660 | static void rocker_port_get_strings(struct net_device *netdev, u32 stringset, | |
4661 | u8 *data) | |
4662 | { | |
4663 | u8 *p = data; | |
4664 | int i; | |
4665 | ||
4666 | switch (stringset) { | |
4667 | case ETH_SS_STATS: | |
4668 | for (i = 0; i < ARRAY_SIZE(rocker_port_stats); i++) { | |
4669 | memcpy(p, rocker_port_stats[i].str, ETH_GSTRING_LEN); | |
4670 | p += ETH_GSTRING_LEN; | |
4671 | } | |
4672 | break; | |
4673 | } | |
4674 | } | |
4675 | ||
4676 | static int | |
534ba6a8 | 4677 | rocker_cmd_get_port_stats_prep(const struct rocker_port *rocker_port, |
9766e97a DA |
4678 | struct rocker_desc_info *desc_info, |
4679 | void *priv) | |
4680 | { | |
4681 | struct rocker_tlv *cmd_stats; | |
4682 | ||
4683 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, | |
4684 | ROCKER_TLV_CMD_TYPE_GET_PORT_STATS)) | |
4685 | return -EMSGSIZE; | |
4686 | ||
4687 | cmd_stats = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
4688 | if (!cmd_stats) | |
4689 | return -EMSGSIZE; | |
4690 | ||
4a6bb6d3 SF |
4691 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_STATS_PPORT, |
4692 | rocker_port->pport)) | |
9766e97a DA |
4693 | return -EMSGSIZE; |
4694 | ||
4695 | rocker_tlv_nest_end(desc_info, cmd_stats); | |
4696 | ||
4697 | return 0; | |
4698 | } | |
4699 | ||
4700 | static int | |
534ba6a8 | 4701 | rocker_cmd_get_port_stats_ethtool_proc(const struct rocker_port *rocker_port, |
e5054643 | 4702 | const struct rocker_desc_info *desc_info, |
9766e97a DA |
4703 | void *priv) |
4704 | { | |
e5054643 SH |
4705 | const struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1]; |
4706 | const struct rocker_tlv *stats_attrs[ROCKER_TLV_CMD_PORT_STATS_MAX + 1]; | |
4707 | const struct rocker_tlv *pattr; | |
4a6bb6d3 | 4708 | u32 pport; |
9766e97a DA |
4709 | u64 *data = priv; |
4710 | int i; | |
4711 | ||
4712 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info); | |
4713 | ||
4714 | if (!attrs[ROCKER_TLV_CMD_INFO]) | |
4715 | return -EIO; | |
4716 | ||
4717 | rocker_tlv_parse_nested(stats_attrs, ROCKER_TLV_CMD_PORT_STATS_MAX, | |
4718 | attrs[ROCKER_TLV_CMD_INFO]); | |
4719 | ||
4a6bb6d3 | 4720 | if (!stats_attrs[ROCKER_TLV_CMD_PORT_STATS_PPORT]) |
9766e97a DA |
4721 | return -EIO; |
4722 | ||
4a6bb6d3 SF |
4723 | pport = rocker_tlv_get_u32(stats_attrs[ROCKER_TLV_CMD_PORT_STATS_PPORT]); |
4724 | if (pport != rocker_port->pport) | |
9766e97a DA |
4725 | return -EIO; |
4726 | ||
4727 | for (i = 0; i < ARRAY_SIZE(rocker_port_stats); i++) { | |
4728 | pattr = stats_attrs[rocker_port_stats[i].type]; | |
4729 | if (!pattr) | |
4730 | continue; | |
4731 | ||
4732 | data[i] = rocker_tlv_get_u64(pattr); | |
4733 | } | |
4734 | ||
4735 | return 0; | |
4736 | } | |
4737 | ||
4738 | static int rocker_cmd_get_port_stats_ethtool(struct rocker_port *rocker_port, | |
4739 | void *priv) | |
4740 | { | |
179f9a25 | 4741 | return rocker_cmd_exec(rocker_port, SWITCHDEV_TRANS_NONE, 0, |
9766e97a DA |
4742 | rocker_cmd_get_port_stats_prep, NULL, |
4743 | rocker_cmd_get_port_stats_ethtool_proc, | |
c4f20321 | 4744 | priv); |
9766e97a DA |
4745 | } |
4746 | ||
4747 | static void rocker_port_get_stats(struct net_device *dev, | |
4748 | struct ethtool_stats *stats, u64 *data) | |
4749 | { | |
4750 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4751 | ||
4752 | if (rocker_cmd_get_port_stats_ethtool(rocker_port, data) != 0) { | |
4753 | int i; | |
4754 | ||
4755 | for (i = 0; i < ARRAY_SIZE(rocker_port_stats); ++i) | |
4756 | data[i] = 0; | |
4757 | } | |
9766e97a DA |
4758 | } |
4759 | ||
4760 | static int rocker_port_get_sset_count(struct net_device *netdev, int sset) | |
4761 | { | |
4762 | switch (sset) { | |
4763 | case ETH_SS_STATS: | |
4764 | return ROCKER_PORT_STATS_LEN; | |
4765 | default: | |
4766 | return -EOPNOTSUPP; | |
4767 | } | |
4768 | } | |
4769 | ||
4b8ac966 JP |
4770 | static const struct ethtool_ops rocker_port_ethtool_ops = { |
4771 | .get_settings = rocker_port_get_settings, | |
4772 | .set_settings = rocker_port_set_settings, | |
4773 | .get_drvinfo = rocker_port_get_drvinfo, | |
4774 | .get_link = ethtool_op_get_link, | |
9766e97a DA |
4775 | .get_strings = rocker_port_get_strings, |
4776 | .get_ethtool_stats = rocker_port_get_stats, | |
4777 | .get_sset_count = rocker_port_get_sset_count, | |
4b8ac966 JP |
4778 | }; |
4779 | ||
4780 | /***************** | |
4781 | * NAPI interface | |
4782 | *****************/ | |
4783 | ||
4784 | static struct rocker_port *rocker_port_napi_tx_get(struct napi_struct *napi) | |
4785 | { | |
4786 | return container_of(napi, struct rocker_port, napi_tx); | |
4787 | } | |
4788 | ||
4789 | static int rocker_port_poll_tx(struct napi_struct *napi, int budget) | |
4790 | { | |
4791 | struct rocker_port *rocker_port = rocker_port_napi_tx_get(napi); | |
e5054643 SH |
4792 | const struct rocker *rocker = rocker_port->rocker; |
4793 | const struct rocker_desc_info *desc_info; | |
4b8ac966 JP |
4794 | u32 credits = 0; |
4795 | int err; | |
4796 | ||
4797 | /* Cleanup tx descriptors */ | |
4798 | while ((desc_info = rocker_desc_tail_get(&rocker_port->tx_ring))) { | |
f2bbca51 DA |
4799 | struct sk_buff *skb; |
4800 | ||
4b8ac966 JP |
4801 | err = rocker_desc_err(desc_info); |
4802 | if (err && net_ratelimit()) | |
4803 | netdev_err(rocker_port->dev, "tx desc received with err %d\n", | |
4804 | err); | |
4805 | rocker_tx_desc_frags_unmap(rocker_port, desc_info); | |
f2bbca51 DA |
4806 | |
4807 | skb = rocker_desc_cookie_ptr_get(desc_info); | |
4808 | if (err == 0) { | |
4809 | rocker_port->dev->stats.tx_packets++; | |
4810 | rocker_port->dev->stats.tx_bytes += skb->len; | |
4725ceb9 | 4811 | } else { |
f2bbca51 | 4812 | rocker_port->dev->stats.tx_errors++; |
4725ceb9 | 4813 | } |
f2bbca51 DA |
4814 | |
4815 | dev_kfree_skb_any(skb); | |
4b8ac966 JP |
4816 | credits++; |
4817 | } | |
4818 | ||
4819 | if (credits && netif_queue_stopped(rocker_port->dev)) | |
4820 | netif_wake_queue(rocker_port->dev); | |
4821 | ||
4822 | napi_complete(napi); | |
4823 | rocker_dma_ring_credits_set(rocker, &rocker_port->tx_ring, credits); | |
4824 | ||
4825 | return 0; | |
4826 | } | |
4827 | ||
e5054643 SH |
4828 | static int rocker_port_rx_proc(const struct rocker *rocker, |
4829 | const struct rocker_port *rocker_port, | |
4b8ac966 JP |
4830 | struct rocker_desc_info *desc_info) |
4831 | { | |
e5054643 | 4832 | const struct rocker_tlv *attrs[ROCKER_TLV_RX_MAX + 1]; |
4b8ac966 JP |
4833 | struct sk_buff *skb = rocker_desc_cookie_ptr_get(desc_info); |
4834 | size_t rx_len; | |
3f98a8e6 | 4835 | u16 rx_flags = 0; |
4b8ac966 JP |
4836 | |
4837 | if (!skb) | |
4838 | return -ENOENT; | |
4839 | ||
4840 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_RX_MAX, desc_info); | |
4841 | if (!attrs[ROCKER_TLV_RX_FRAG_LEN]) | |
4842 | return -EINVAL; | |
3f98a8e6 SF |
4843 | if (attrs[ROCKER_TLV_RX_FLAGS]) |
4844 | rx_flags = rocker_tlv_get_u16(attrs[ROCKER_TLV_RX_FLAGS]); | |
4b8ac966 JP |
4845 | |
4846 | rocker_dma_rx_ring_skb_unmap(rocker, attrs); | |
4847 | ||
4848 | rx_len = rocker_tlv_get_u16(attrs[ROCKER_TLV_RX_FRAG_LEN]); | |
4849 | skb_put(skb, rx_len); | |
4850 | skb->protocol = eth_type_trans(skb, rocker_port->dev); | |
f2bbca51 | 4851 | |
3f98a8e6 SF |
4852 | if (rx_flags & ROCKER_RX_FLAGS_FWD_OFFLOAD) |
4853 | skb->offload_fwd_mark = rocker_port->dev->offload_fwd_mark; | |
4854 | ||
f2bbca51 DA |
4855 | rocker_port->dev->stats.rx_packets++; |
4856 | rocker_port->dev->stats.rx_bytes += skb->len; | |
4857 | ||
4b8ac966 JP |
4858 | netif_receive_skb(skb); |
4859 | ||
534ba6a8 | 4860 | return rocker_dma_rx_ring_skb_alloc(rocker_port, desc_info); |
4b8ac966 JP |
4861 | } |
4862 | ||
4863 | static struct rocker_port *rocker_port_napi_rx_get(struct napi_struct *napi) | |
4864 | { | |
4865 | return container_of(napi, struct rocker_port, napi_rx); | |
4866 | } | |
4867 | ||
4868 | static int rocker_port_poll_rx(struct napi_struct *napi, int budget) | |
4869 | { | |
4870 | struct rocker_port *rocker_port = rocker_port_napi_rx_get(napi); | |
e5054643 | 4871 | const struct rocker *rocker = rocker_port->rocker; |
4b8ac966 JP |
4872 | struct rocker_desc_info *desc_info; |
4873 | u32 credits = 0; | |
4874 | int err; | |
4875 | ||
4876 | /* Process rx descriptors */ | |
4877 | while (credits < budget && | |
4878 | (desc_info = rocker_desc_tail_get(&rocker_port->rx_ring))) { | |
4879 | err = rocker_desc_err(desc_info); | |
4880 | if (err) { | |
4881 | if (net_ratelimit()) | |
4882 | netdev_err(rocker_port->dev, "rx desc received with err %d\n", | |
4883 | err); | |
4884 | } else { | |
4885 | err = rocker_port_rx_proc(rocker, rocker_port, | |
4886 | desc_info); | |
4887 | if (err && net_ratelimit()) | |
4888 | netdev_err(rocker_port->dev, "rx processing failed with err %d\n", | |
4889 | err); | |
4890 | } | |
f2bbca51 DA |
4891 | if (err) |
4892 | rocker_port->dev->stats.rx_errors++; | |
4893 | ||
4b8ac966 JP |
4894 | rocker_desc_gen_clear(desc_info); |
4895 | rocker_desc_head_set(rocker, &rocker_port->rx_ring, desc_info); | |
4896 | credits++; | |
4897 | } | |
4898 | ||
4899 | if (credits < budget) | |
4900 | napi_complete(napi); | |
4901 | ||
4902 | rocker_dma_ring_credits_set(rocker, &rocker_port->rx_ring, credits); | |
4903 | ||
4904 | return credits; | |
4905 | } | |
4906 | ||
4907 | /***************** | |
4908 | * PCI driver ops | |
4909 | *****************/ | |
4910 | ||
e5054643 | 4911 | static void rocker_carrier_init(const struct rocker_port *rocker_port) |
4b8ac966 | 4912 | { |
e5054643 | 4913 | const struct rocker *rocker = rocker_port->rocker; |
4b8ac966 JP |
4914 | u64 link_status = rocker_read64(rocker, PORT_PHYS_LINK_STATUS); |
4915 | bool link_up; | |
4916 | ||
4a6bb6d3 | 4917 | link_up = link_status & (1 << rocker_port->pport); |
4b8ac966 JP |
4918 | if (link_up) |
4919 | netif_carrier_on(rocker_port->dev); | |
4920 | else | |
4921 | netif_carrier_off(rocker_port->dev); | |
4922 | } | |
4923 | ||
e5054643 | 4924 | static void rocker_remove_ports(const struct rocker *rocker) |
4b8ac966 | 4925 | { |
9f6bbf7c | 4926 | struct rocker_port *rocker_port; |
4b8ac966 JP |
4927 | int i; |
4928 | ||
9f6bbf7c SF |
4929 | for (i = 0; i < rocker->port_count; i++) { |
4930 | rocker_port = rocker->ports[i]; | |
a0720310 SF |
4931 | if (!rocker_port) |
4932 | continue; | |
c4f20321 SF |
4933 | rocker_port_ig_tbl(rocker_port, SWITCHDEV_TRANS_NONE, |
4934 | ROCKER_OP_FLAG_REMOVE); | |
9f6bbf7c | 4935 | unregister_netdev(rocker_port->dev); |
1ebd47ef | 4936 | free_netdev(rocker_port->dev); |
9f6bbf7c | 4937 | } |
4b8ac966 JP |
4938 | kfree(rocker->ports); |
4939 | } | |
4940 | ||
534ba6a8 | 4941 | static void rocker_port_dev_addr_init(struct rocker_port *rocker_port) |
4b8ac966 | 4942 | { |
534ba6a8 | 4943 | const struct rocker *rocker = rocker_port->rocker; |
e5054643 | 4944 | const struct pci_dev *pdev = rocker->pdev; |
4b8ac966 JP |
4945 | int err; |
4946 | ||
4947 | err = rocker_cmd_get_port_settings_macaddr(rocker_port, | |
4948 | rocker_port->dev->dev_addr); | |
4949 | if (err) { | |
4950 | dev_warn(&pdev->dev, "failed to get mac address, using random\n"); | |
4951 | eth_hw_addr_random(rocker_port->dev); | |
4952 | } | |
4953 | } | |
4954 | ||
4955 | static int rocker_probe_port(struct rocker *rocker, unsigned int port_number) | |
4956 | { | |
e5054643 | 4957 | const struct pci_dev *pdev = rocker->pdev; |
4b8ac966 JP |
4958 | struct rocker_port *rocker_port; |
4959 | struct net_device *dev; | |
bcfd7801 | 4960 | u16 untagged_vid = 0; |
4b8ac966 JP |
4961 | int err; |
4962 | ||
4963 | dev = alloc_etherdev(sizeof(struct rocker_port)); | |
4964 | if (!dev) | |
4965 | return -ENOMEM; | |
4966 | rocker_port = netdev_priv(dev); | |
4967 | rocker_port->dev = dev; | |
4968 | rocker_port->rocker = rocker; | |
4969 | rocker_port->port_number = port_number; | |
4a6bb6d3 | 4970 | rocker_port->pport = port_number + 1; |
5111f80c | 4971 | rocker_port->brport_flags = BR_LEARNING | BR_LEARNING_SYNC; |
c4f20321 | 4972 | INIT_LIST_HEAD(&rocker_port->trans_mem); |
4b8ac966 | 4973 | |
534ba6a8 | 4974 | rocker_port_dev_addr_init(rocker_port); |
4b8ac966 JP |
4975 | dev->netdev_ops = &rocker_port_netdev_ops; |
4976 | dev->ethtool_ops = &rocker_port_ethtool_ops; | |
9d47c0a2 | 4977 | dev->switchdev_ops = &rocker_port_switchdev_ops; |
4b8ac966 JP |
4978 | netif_napi_add(dev, &rocker_port->napi_tx, rocker_port_poll_tx, |
4979 | NAPI_POLL_WEIGHT); | |
4980 | netif_napi_add(dev, &rocker_port->napi_rx, rocker_port_poll_rx, | |
4981 | NAPI_POLL_WEIGHT); | |
4982 | rocker_carrier_init(rocker_port); | |
4983 | ||
21518a6e | 4984 | dev->features |= NETIF_F_NETNS_LOCAL | NETIF_F_SG; |
4b8ac966 JP |
4985 | |
4986 | err = register_netdev(dev); | |
4987 | if (err) { | |
4988 | dev_err(&pdev->dev, "register_netdev failed\n"); | |
4989 | goto err_register_netdev; | |
4990 | } | |
4991 | rocker->ports[port_number] = rocker_port; | |
4992 | ||
3f98a8e6 SF |
4993 | switchdev_port_fwd_mark_set(rocker_port->dev, NULL, false); |
4994 | ||
c4f20321 | 4995 | rocker_port_set_learning(rocker_port, SWITCHDEV_TRANS_NONE); |
5111f80c | 4996 | |
c4f20321 | 4997 | err = rocker_port_ig_tbl(rocker_port, SWITCHDEV_TRANS_NONE, 0); |
9f6bbf7c | 4998 | if (err) { |
ff147028 | 4999 | netdev_err(rocker_port->dev, "install ig port table failed\n"); |
9f6bbf7c SF |
5000 | goto err_port_ig_tbl; |
5001 | } | |
5002 | ||
bcfd7801 SF |
5003 | rocker_port->internal_vlan_id = |
5004 | rocker_port_internal_vlan_id_get(rocker_port, dev->ifindex); | |
5005 | ||
5006 | err = rocker_port_vlan_add(rocker_port, SWITCHDEV_TRANS_NONE, | |
5007 | untagged_vid, 0); | |
5008 | if (err) { | |
5009 | netdev_err(rocker_port->dev, "install untagged VLAN failed\n"); | |
5010 | goto err_untagged_vlan; | |
5011 | } | |
5012 | ||
4b8ac966 JP |
5013 | return 0; |
5014 | ||
bcfd7801 SF |
5015 | err_untagged_vlan: |
5016 | rocker_port_ig_tbl(rocker_port, SWITCHDEV_TRANS_NONE, | |
5017 | ROCKER_OP_FLAG_REMOVE); | |
9f6bbf7c | 5018 | err_port_ig_tbl: |
6c4f7780 | 5019 | rocker->ports[port_number] = NULL; |
9f6bbf7c | 5020 | unregister_netdev(dev); |
4b8ac966 JP |
5021 | err_register_netdev: |
5022 | free_netdev(dev); | |
5023 | return err; | |
5024 | } | |
5025 | ||
5026 | static int rocker_probe_ports(struct rocker *rocker) | |
5027 | { | |
5028 | int i; | |
5029 | size_t alloc_size; | |
5030 | int err; | |
5031 | ||
5032 | alloc_size = sizeof(struct rocker_port *) * rocker->port_count; | |
27b808cb | 5033 | rocker->ports = kzalloc(alloc_size, GFP_KERNEL); |
e65ad3be DC |
5034 | if (!rocker->ports) |
5035 | return -ENOMEM; | |
4b8ac966 JP |
5036 | for (i = 0; i < rocker->port_count; i++) { |
5037 | err = rocker_probe_port(rocker, i); | |
5038 | if (err) | |
5039 | goto remove_ports; | |
5040 | } | |
5041 | return 0; | |
5042 | ||
5043 | remove_ports: | |
5044 | rocker_remove_ports(rocker); | |
5045 | return err; | |
5046 | } | |
5047 | ||
5048 | static int rocker_msix_init(struct rocker *rocker) | |
5049 | { | |
5050 | struct pci_dev *pdev = rocker->pdev; | |
5051 | int msix_entries; | |
5052 | int i; | |
5053 | int err; | |
5054 | ||
5055 | msix_entries = pci_msix_vec_count(pdev); | |
5056 | if (msix_entries < 0) | |
5057 | return msix_entries; | |
5058 | ||
5059 | if (msix_entries != ROCKER_MSIX_VEC_COUNT(rocker->port_count)) | |
5060 | return -EINVAL; | |
5061 | ||
5062 | rocker->msix_entries = kmalloc_array(msix_entries, | |
5063 | sizeof(struct msix_entry), | |
5064 | GFP_KERNEL); | |
5065 | if (!rocker->msix_entries) | |
5066 | return -ENOMEM; | |
5067 | ||
5068 | for (i = 0; i < msix_entries; i++) | |
5069 | rocker->msix_entries[i].entry = i; | |
5070 | ||
5071 | err = pci_enable_msix_exact(pdev, rocker->msix_entries, msix_entries); | |
5072 | if (err < 0) | |
5073 | goto err_enable_msix; | |
5074 | ||
5075 | return 0; | |
5076 | ||
5077 | err_enable_msix: | |
5078 | kfree(rocker->msix_entries); | |
5079 | return err; | |
5080 | } | |
5081 | ||
e5054643 | 5082 | static void rocker_msix_fini(const struct rocker *rocker) |
4b8ac966 JP |
5083 | { |
5084 | pci_disable_msix(rocker->pdev); | |
5085 | kfree(rocker->msix_entries); | |
5086 | } | |
5087 | ||
5088 | static int rocker_probe(struct pci_dev *pdev, const struct pci_device_id *id) | |
5089 | { | |
5090 | struct rocker *rocker; | |
5091 | int err; | |
5092 | ||
5093 | rocker = kzalloc(sizeof(*rocker), GFP_KERNEL); | |
5094 | if (!rocker) | |
5095 | return -ENOMEM; | |
5096 | ||
5097 | err = pci_enable_device(pdev); | |
5098 | if (err) { | |
5099 | dev_err(&pdev->dev, "pci_enable_device failed\n"); | |
5100 | goto err_pci_enable_device; | |
5101 | } | |
5102 | ||
5103 | err = pci_request_regions(pdev, rocker_driver_name); | |
5104 | if (err) { | |
5105 | dev_err(&pdev->dev, "pci_request_regions failed\n"); | |
5106 | goto err_pci_request_regions; | |
5107 | } | |
5108 | ||
5109 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); | |
5110 | if (!err) { | |
5111 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); | |
5112 | if (err) { | |
5113 | dev_err(&pdev->dev, "pci_set_consistent_dma_mask failed\n"); | |
5114 | goto err_pci_set_dma_mask; | |
5115 | } | |
5116 | } else { | |
5117 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); | |
5118 | if (err) { | |
5119 | dev_err(&pdev->dev, "pci_set_dma_mask failed\n"); | |
5120 | goto err_pci_set_dma_mask; | |
5121 | } | |
5122 | } | |
5123 | ||
5124 | if (pci_resource_len(pdev, 0) < ROCKER_PCI_BAR0_SIZE) { | |
5125 | dev_err(&pdev->dev, "invalid PCI region size\n"); | |
3122a92e | 5126 | err = -EINVAL; |
4b8ac966 JP |
5127 | goto err_pci_resource_len_check; |
5128 | } | |
5129 | ||
5130 | rocker->hw_addr = ioremap(pci_resource_start(pdev, 0), | |
5131 | pci_resource_len(pdev, 0)); | |
5132 | if (!rocker->hw_addr) { | |
5133 | dev_err(&pdev->dev, "ioremap failed\n"); | |
5134 | err = -EIO; | |
5135 | goto err_ioremap; | |
5136 | } | |
5137 | pci_set_master(pdev); | |
5138 | ||
5139 | rocker->pdev = pdev; | |
5140 | pci_set_drvdata(pdev, rocker); | |
5141 | ||
5142 | rocker->port_count = rocker_read32(rocker, PORT_PHYS_COUNT); | |
5143 | ||
5144 | err = rocker_msix_init(rocker); | |
5145 | if (err) { | |
5146 | dev_err(&pdev->dev, "MSI-X init failed\n"); | |
5147 | goto err_msix_init; | |
5148 | } | |
5149 | ||
5150 | err = rocker_basic_hw_test(rocker); | |
5151 | if (err) { | |
5152 | dev_err(&pdev->dev, "basic hw test failed\n"); | |
5153 | goto err_basic_hw_test; | |
5154 | } | |
5155 | ||
5156 | rocker_write32(rocker, CONTROL, ROCKER_CONTROL_RESET); | |
5157 | ||
5158 | err = rocker_dma_rings_init(rocker); | |
5159 | if (err) | |
5160 | goto err_dma_rings_init; | |
5161 | ||
5162 | err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), | |
5163 | rocker_cmd_irq_handler, 0, | |
5164 | rocker_driver_name, rocker); | |
5165 | if (err) { | |
5166 | dev_err(&pdev->dev, "cannot assign cmd irq\n"); | |
5167 | goto err_request_cmd_irq; | |
5168 | } | |
5169 | ||
5170 | err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), | |
5171 | rocker_event_irq_handler, 0, | |
5172 | rocker_driver_name, rocker); | |
5173 | if (err) { | |
5174 | dev_err(&pdev->dev, "cannot assign event irq\n"); | |
5175 | goto err_request_event_irq; | |
5176 | } | |
5177 | ||
5178 | rocker->hw.id = rocker_read64(rocker, SWITCH_ID); | |
5179 | ||
9f6bbf7c SF |
5180 | err = rocker_init_tbls(rocker); |
5181 | if (err) { | |
5182 | dev_err(&pdev->dev, "cannot init rocker tables\n"); | |
5183 | goto err_init_tbls; | |
5184 | } | |
5185 | ||
4b8ac966 JP |
5186 | err = rocker_probe_ports(rocker); |
5187 | if (err) { | |
5188 | dev_err(&pdev->dev, "failed to probe ports\n"); | |
5189 | goto err_probe_ports; | |
5190 | } | |
5191 | ||
c8beb5b2 SF |
5192 | dev_info(&pdev->dev, "Rocker switch with id %*phN\n", |
5193 | (int)sizeof(rocker->hw.id), &rocker->hw.id); | |
4b8ac966 JP |
5194 | |
5195 | return 0; | |
5196 | ||
5197 | err_probe_ports: | |
9f6bbf7c SF |
5198 | rocker_free_tbls(rocker); |
5199 | err_init_tbls: | |
4b8ac966 JP |
5200 | free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), rocker); |
5201 | err_request_event_irq: | |
5202 | free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), rocker); | |
5203 | err_request_cmd_irq: | |
5204 | rocker_dma_rings_fini(rocker); | |
5205 | err_dma_rings_init: | |
5206 | err_basic_hw_test: | |
5207 | rocker_msix_fini(rocker); | |
5208 | err_msix_init: | |
5209 | iounmap(rocker->hw_addr); | |
5210 | err_ioremap: | |
5211 | err_pci_resource_len_check: | |
5212 | err_pci_set_dma_mask: | |
5213 | pci_release_regions(pdev); | |
5214 | err_pci_request_regions: | |
5215 | pci_disable_device(pdev); | |
5216 | err_pci_enable_device: | |
5217 | kfree(rocker); | |
5218 | return err; | |
5219 | } | |
5220 | ||
5221 | static void rocker_remove(struct pci_dev *pdev) | |
5222 | { | |
5223 | struct rocker *rocker = pci_get_drvdata(pdev); | |
5224 | ||
9f6bbf7c | 5225 | rocker_free_tbls(rocker); |
4b8ac966 JP |
5226 | rocker_write32(rocker, CONTROL, ROCKER_CONTROL_RESET); |
5227 | rocker_remove_ports(rocker); | |
5228 | free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), rocker); | |
5229 | free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), rocker); | |
5230 | rocker_dma_rings_fini(rocker); | |
5231 | rocker_msix_fini(rocker); | |
5232 | iounmap(rocker->hw_addr); | |
5233 | pci_release_regions(rocker->pdev); | |
5234 | pci_disable_device(rocker->pdev); | |
5235 | kfree(rocker); | |
5236 | } | |
5237 | ||
5238 | static struct pci_driver rocker_pci_driver = { | |
5239 | .name = rocker_driver_name, | |
5240 | .id_table = rocker_pci_id_table, | |
5241 | .probe = rocker_probe, | |
5242 | .remove = rocker_remove, | |
5243 | }; | |
5244 | ||
6c707945 SF |
5245 | /************************************ |
5246 | * Net device notifier event handler | |
5247 | ************************************/ | |
5248 | ||
e5054643 | 5249 | static bool rocker_port_dev_check(const struct net_device *dev) |
6c707945 SF |
5250 | { |
5251 | return dev->netdev_ops == &rocker_port_netdev_ops; | |
5252 | } | |
5253 | ||
5254 | static int rocker_port_bridge_join(struct rocker_port *rocker_port, | |
5255 | struct net_device *bridge) | |
5256 | { | |
027e00dc | 5257 | u16 untagged_vid = 0; |
6c707945 SF |
5258 | int err; |
5259 | ||
027e00dc SF |
5260 | /* Port is joining bridge, so the internal VLAN for the |
5261 | * port is going to change to the bridge internal VLAN. | |
5262 | * Let's remove untagged VLAN (vid=0) from port and | |
5263 | * re-add once internal VLAN has changed. | |
5264 | */ | |
6c707945 | 5265 | |
027e00dc | 5266 | err = rocker_port_vlan_del(rocker_port, untagged_vid, 0); |
6c707945 SF |
5267 | if (err) |
5268 | return err; | |
027e00dc SF |
5269 | |
5270 | rocker_port_internal_vlan_id_put(rocker_port, | |
5271 | rocker_port->dev->ifindex); | |
6c707945 | 5272 | rocker_port->internal_vlan_id = |
df6a2067 | 5273 | rocker_port_internal_vlan_id_get(rocker_port, bridge->ifindex); |
027e00dc SF |
5274 | |
5275 | rocker_port->bridge_dev = bridge; | |
3f98a8e6 | 5276 | switchdev_port_fwd_mark_set(rocker_port->dev, bridge, true); |
027e00dc SF |
5277 | |
5278 | return rocker_port_vlan_add(rocker_port, SWITCHDEV_TRANS_NONE, | |
5279 | untagged_vid, 0); | |
6c707945 SF |
5280 | } |
5281 | ||
5282 | static int rocker_port_bridge_leave(struct rocker_port *rocker_port) | |
5283 | { | |
027e00dc | 5284 | u16 untagged_vid = 0; |
6c707945 SF |
5285 | int err; |
5286 | ||
027e00dc | 5287 | err = rocker_port_vlan_del(rocker_port, untagged_vid, 0); |
6c707945 SF |
5288 | if (err) |
5289 | return err; | |
027e00dc SF |
5290 | |
5291 | rocker_port_internal_vlan_id_put(rocker_port, | |
5292 | rocker_port->bridge_dev->ifindex); | |
6c707945 SF |
5293 | rocker_port->internal_vlan_id = |
5294 | rocker_port_internal_vlan_id_get(rocker_port, | |
5295 | rocker_port->dev->ifindex); | |
027e00dc | 5296 | |
3f98a8e6 SF |
5297 | switchdev_port_fwd_mark_set(rocker_port->dev, rocker_port->bridge_dev, |
5298 | false); | |
027e00dc SF |
5299 | rocker_port->bridge_dev = NULL; |
5300 | ||
5301 | err = rocker_port_vlan_add(rocker_port, SWITCHDEV_TRANS_NONE, | |
5302 | untagged_vid, 0); | |
e47172ab SF |
5303 | if (err) |
5304 | return err; | |
5305 | ||
5306 | if (rocker_port->dev->flags & IFF_UP) | |
179f9a25 SF |
5307 | err = rocker_port_fwd_enable(rocker_port, |
5308 | SWITCHDEV_TRANS_NONE, 0); | |
6c707945 SF |
5309 | |
5310 | return err; | |
5311 | } | |
5312 | ||
8254973f SH |
5313 | |
5314 | static int rocker_port_ovs_changed(struct rocker_port *rocker_port, | |
5315 | struct net_device *master) | |
5316 | { | |
5317 | int err; | |
5318 | ||
5319 | rocker_port->bridge_dev = master; | |
5320 | ||
5321 | err = rocker_port_fwd_disable(rocker_port, SWITCHDEV_TRANS_NONE, 0); | |
5322 | if (err) | |
5323 | return err; | |
5324 | err = rocker_port_fwd_enable(rocker_port, SWITCHDEV_TRANS_NONE, 0); | |
5325 | ||
5326 | return err; | |
5327 | } | |
5328 | ||
686ed304 JP |
5329 | static int rocker_port_master_linked(struct rocker_port *rocker_port, |
5330 | struct net_device *master) | |
5331 | { | |
5332 | int err = 0; | |
5333 | ||
5334 | if (netif_is_bridge_master(master)) | |
5335 | err = rocker_port_bridge_join(rocker_port, master); | |
5336 | else if (netif_is_ovs_master(master)) | |
5337 | err = rocker_port_ovs_changed(rocker_port, master); | |
5338 | return err; | |
5339 | } | |
5340 | ||
5341 | static int rocker_port_master_unlinked(struct rocker_port *rocker_port) | |
6c707945 | 5342 | { |
6c707945 SF |
5343 | int err = 0; |
5344 | ||
686ed304 | 5345 | if (rocker_port_is_bridged(rocker_port)) |
6c707945 | 5346 | err = rocker_port_bridge_leave(rocker_port); |
686ed304 | 5347 | else if (rocker_port_is_ovsed(rocker_port)) |
8254973f | 5348 | err = rocker_port_ovs_changed(rocker_port, NULL); |
6c707945 SF |
5349 | return err; |
5350 | } | |
5351 | ||
5352 | static int rocker_netdevice_event(struct notifier_block *unused, | |
5353 | unsigned long event, void *ptr) | |
5354 | { | |
686ed304 JP |
5355 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); |
5356 | struct netdev_notifier_changeupper_info *info; | |
5357 | struct rocker_port *rocker_port; | |
6c707945 SF |
5358 | int err; |
5359 | ||
686ed304 JP |
5360 | if (!rocker_port_dev_check(dev)) |
5361 | return NOTIFY_DONE; | |
5362 | ||
6c707945 SF |
5363 | switch (event) { |
5364 | case NETDEV_CHANGEUPPER: | |
686ed304 JP |
5365 | info = ptr; |
5366 | if (!info->master) | |
5367 | goto out; | |
5368 | rocker_port = netdev_priv(dev); | |
5369 | if (info->linking) { | |
5370 | err = rocker_port_master_linked(rocker_port, | |
5371 | info->upper_dev); | |
5372 | if (err) | |
5373 | netdev_warn(dev, "failed to reflect master linked (err %d)\n", | |
5374 | err); | |
5375 | } else { | |
5376 | err = rocker_port_master_unlinked(rocker_port); | |
5377 | if (err) | |
5378 | netdev_warn(dev, "failed to reflect master unlinked (err %d)\n", | |
5379 | err); | |
5380 | } | |
6c707945 SF |
5381 | break; |
5382 | } | |
686ed304 | 5383 | out: |
6c707945 SF |
5384 | return NOTIFY_DONE; |
5385 | } | |
5386 | ||
5387 | static struct notifier_block rocker_netdevice_nb __read_mostly = { | |
5388 | .notifier_call = rocker_netdevice_event, | |
5389 | }; | |
5390 | ||
c1beeef7 SF |
5391 | /************************************ |
5392 | * Net event notifier event handler | |
5393 | ************************************/ | |
5394 | ||
5395 | static int rocker_neigh_update(struct net_device *dev, struct neighbour *n) | |
5396 | { | |
5397 | struct rocker_port *rocker_port = netdev_priv(dev); | |
02a9fbfc SF |
5398 | int flags = (n->nud_state & NUD_VALID ? 0 : ROCKER_OP_FLAG_REMOVE) | |
5399 | ROCKER_OP_FLAG_NOWAIT; | |
c1beeef7 SF |
5400 | __be32 ip_addr = *(__be32 *)n->primary_key; |
5401 | ||
c4f20321 SF |
5402 | return rocker_port_ipv4_neigh(rocker_port, SWITCHDEV_TRANS_NONE, |
5403 | flags, ip_addr, n->ha); | |
c1beeef7 SF |
5404 | } |
5405 | ||
5406 | static int rocker_netevent_event(struct notifier_block *unused, | |
5407 | unsigned long event, void *ptr) | |
5408 | { | |
5409 | struct net_device *dev; | |
5410 | struct neighbour *n = ptr; | |
5411 | int err; | |
5412 | ||
5413 | switch (event) { | |
5414 | case NETEVENT_NEIGH_UPDATE: | |
5415 | if (n->tbl != &arp_tbl) | |
5416 | return NOTIFY_DONE; | |
5417 | dev = n->dev; | |
5418 | if (!rocker_port_dev_check(dev)) | |
5419 | return NOTIFY_DONE; | |
5420 | err = rocker_neigh_update(dev, n); | |
5421 | if (err) | |
5422 | netdev_warn(dev, | |
5423 | "failed to handle neigh update (err %d)\n", | |
5424 | err); | |
5425 | break; | |
5426 | } | |
5427 | ||
5428 | return NOTIFY_DONE; | |
5429 | } | |
5430 | ||
5431 | static struct notifier_block rocker_netevent_nb __read_mostly = { | |
5432 | .notifier_call = rocker_netevent_event, | |
5433 | }; | |
5434 | ||
4b8ac966 JP |
5435 | /*********************** |
5436 | * Module init and exit | |
5437 | ***********************/ | |
5438 | ||
5439 | static int __init rocker_module_init(void) | |
5440 | { | |
6c707945 SF |
5441 | int err; |
5442 | ||
5443 | register_netdevice_notifier(&rocker_netdevice_nb); | |
c1beeef7 | 5444 | register_netevent_notifier(&rocker_netevent_nb); |
6c707945 SF |
5445 | err = pci_register_driver(&rocker_pci_driver); |
5446 | if (err) | |
5447 | goto err_pci_register_driver; | |
5448 | return 0; | |
5449 | ||
5450 | err_pci_register_driver: | |
a076e6bf | 5451 | unregister_netevent_notifier(&rocker_netevent_nb); |
6c707945 SF |
5452 | unregister_netdevice_notifier(&rocker_netdevice_nb); |
5453 | return err; | |
4b8ac966 JP |
5454 | } |
5455 | ||
5456 | static void __exit rocker_module_exit(void) | |
5457 | { | |
c1beeef7 | 5458 | unregister_netevent_notifier(&rocker_netevent_nb); |
6c707945 | 5459 | unregister_netdevice_notifier(&rocker_netdevice_nb); |
4b8ac966 JP |
5460 | pci_unregister_driver(&rocker_pci_driver); |
5461 | } | |
5462 | ||
5463 | module_init(rocker_module_init); | |
5464 | module_exit(rocker_module_exit); | |
5465 | ||
5466 | MODULE_LICENSE("GPL v2"); | |
5467 | MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>"); | |
5468 | MODULE_AUTHOR("Scott Feldman <sfeldma@gmail.com>"); | |
5469 | MODULE_DESCRIPTION("Rocker switch device driver"); | |
5470 | MODULE_DEVICE_TABLE(pci, rocker_pci_id_table); |