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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; | |
184 | DEFINE_DMA_UNMAP_ADDR(mapaddr); | |
185 | }; | |
186 | ||
187 | struct rocker_dma_ring_info { | |
188 | size_t size; | |
189 | u32 head; | |
190 | u32 tail; | |
191 | struct rocker_desc *desc; /* mapped */ | |
192 | dma_addr_t mapaddr; | |
193 | struct rocker_desc_info *desc_info; | |
194 | unsigned int type; | |
195 | }; | |
196 | ||
197 | struct rocker; | |
198 | ||
9f6bbf7c SF |
199 | enum { |
200 | ROCKER_CTRL_LINK_LOCAL_MCAST, | |
201 | ROCKER_CTRL_LOCAL_ARP, | |
202 | ROCKER_CTRL_IPV4_MCAST, | |
203 | ROCKER_CTRL_IPV6_MCAST, | |
204 | ROCKER_CTRL_DFLT_BRIDGING, | |
205 | ROCKER_CTRL_MAX, | |
206 | }; | |
207 | ||
208 | #define ROCKER_INTERNAL_VLAN_ID_BASE 0x0f00 | |
209 | #define ROCKER_N_INTERNAL_VLANS 255 | |
210 | #define ROCKER_VLAN_BITMAP_LEN BITS_TO_LONGS(VLAN_N_VID) | |
211 | #define ROCKER_INTERNAL_VLAN_BITMAP_LEN BITS_TO_LONGS(ROCKER_N_INTERNAL_VLANS) | |
212 | ||
4b8ac966 JP |
213 | struct rocker_port { |
214 | struct net_device *dev; | |
6c707945 | 215 | struct net_device *bridge_dev; |
4b8ac966 JP |
216 | struct rocker *rocker; |
217 | unsigned int port_number; | |
4a6bb6d3 | 218 | u32 pport; |
9f6bbf7c | 219 | __be16 internal_vlan_id; |
6c707945 | 220 | int stp_state; |
5111f80c | 221 | u32 brport_flags; |
9f6bbf7c SF |
222 | bool ctrls[ROCKER_CTRL_MAX]; |
223 | unsigned long vlan_bitmap[ROCKER_VLAN_BITMAP_LEN]; | |
4b8ac966 JP |
224 | struct napi_struct napi_tx; |
225 | struct napi_struct napi_rx; | |
226 | struct rocker_dma_ring_info tx_ring; | |
227 | struct rocker_dma_ring_info rx_ring; | |
228 | }; | |
229 | ||
230 | struct rocker { | |
231 | struct pci_dev *pdev; | |
232 | u8 __iomem *hw_addr; | |
233 | struct msix_entry *msix_entries; | |
234 | unsigned int port_count; | |
235 | struct rocker_port **ports; | |
236 | struct { | |
237 | u64 id; | |
238 | } hw; | |
239 | spinlock_t cmd_ring_lock; | |
240 | struct rocker_dma_ring_info cmd_ring; | |
241 | struct rocker_dma_ring_info event_ring; | |
9f6bbf7c SF |
242 | DECLARE_HASHTABLE(flow_tbl, 16); |
243 | spinlock_t flow_tbl_lock; | |
244 | u64 flow_tbl_next_cookie; | |
245 | DECLARE_HASHTABLE(group_tbl, 16); | |
246 | spinlock_t group_tbl_lock; | |
247 | DECLARE_HASHTABLE(fdb_tbl, 16); | |
248 | spinlock_t fdb_tbl_lock; | |
249 | unsigned long internal_vlan_bitmap[ROCKER_INTERNAL_VLAN_BITMAP_LEN]; | |
250 | DECLARE_HASHTABLE(internal_vlan_tbl, 8); | |
251 | spinlock_t internal_vlan_tbl_lock; | |
c1beeef7 SF |
252 | DECLARE_HASHTABLE(neigh_tbl, 16); |
253 | spinlock_t neigh_tbl_lock; | |
254 | u32 neigh_tbl_next_index; | |
9f6bbf7c SF |
255 | }; |
256 | ||
257 | static const u8 zero_mac[ETH_ALEN] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; | |
258 | static const u8 ff_mac[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; | |
259 | static const u8 ll_mac[ETH_ALEN] = { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x00 }; | |
260 | static const u8 ll_mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0 }; | |
261 | static const u8 mcast_mac[ETH_ALEN] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 }; | |
262 | static const u8 ipv4_mcast[ETH_ALEN] = { 0x01, 0x00, 0x5e, 0x00, 0x00, 0x00 }; | |
263 | static const u8 ipv4_mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0x80, 0x00, 0x00 }; | |
264 | static const u8 ipv6_mcast[ETH_ALEN] = { 0x33, 0x33, 0x00, 0x00, 0x00, 0x00 }; | |
265 | static const u8 ipv6_mask[ETH_ALEN] = { 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }; | |
266 | ||
267 | /* Rocker priority levels for flow table entries. Higher | |
268 | * priority match takes precedence over lower priority match. | |
269 | */ | |
270 | ||
271 | enum { | |
272 | ROCKER_PRIORITY_UNKNOWN = 0, | |
273 | ROCKER_PRIORITY_IG_PORT = 1, | |
274 | ROCKER_PRIORITY_VLAN = 1, | |
275 | ROCKER_PRIORITY_TERM_MAC_UCAST = 0, | |
276 | ROCKER_PRIORITY_TERM_MAC_MCAST = 1, | |
9f6bbf7c SF |
277 | ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_EXACT = 1, |
278 | ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_WILD = 2, | |
279 | ROCKER_PRIORITY_BRIDGING_VLAN = 3, | |
280 | ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_EXACT = 1, | |
281 | ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_WILD = 2, | |
282 | ROCKER_PRIORITY_BRIDGING_TENANT = 3, | |
283 | ROCKER_PRIORITY_ACL_CTRL = 3, | |
284 | ROCKER_PRIORITY_ACL_NORMAL = 2, | |
285 | ROCKER_PRIORITY_ACL_DFLT = 1, | |
4b8ac966 JP |
286 | }; |
287 | ||
9f6bbf7c SF |
288 | static bool rocker_vlan_id_is_internal(__be16 vlan_id) |
289 | { | |
290 | u16 start = ROCKER_INTERNAL_VLAN_ID_BASE; | |
291 | u16 end = 0xffe; | |
292 | u16 _vlan_id = ntohs(vlan_id); | |
293 | ||
294 | return (_vlan_id >= start && _vlan_id <= end); | |
295 | } | |
296 | ||
297 | static __be16 rocker_port_vid_to_vlan(struct rocker_port *rocker_port, | |
298 | u16 vid, bool *pop_vlan) | |
299 | { | |
300 | __be16 vlan_id; | |
301 | ||
302 | if (pop_vlan) | |
303 | *pop_vlan = false; | |
304 | vlan_id = htons(vid); | |
305 | if (!vlan_id) { | |
306 | vlan_id = rocker_port->internal_vlan_id; | |
307 | if (pop_vlan) | |
308 | *pop_vlan = true; | |
309 | } | |
310 | ||
311 | return vlan_id; | |
312 | } | |
313 | ||
6c707945 SF |
314 | static u16 rocker_port_vlan_to_vid(struct rocker_port *rocker_port, |
315 | __be16 vlan_id) | |
316 | { | |
317 | if (rocker_vlan_id_is_internal(vlan_id)) | |
318 | return 0; | |
319 | ||
320 | return ntohs(vlan_id); | |
321 | } | |
322 | ||
323 | static bool rocker_port_is_bridged(struct rocker_port *rocker_port) | |
324 | { | |
325 | return !!rocker_port->bridge_dev; | |
326 | } | |
327 | ||
4b8ac966 JP |
328 | struct rocker_wait { |
329 | wait_queue_head_t wait; | |
330 | bool done; | |
331 | bool nowait; | |
332 | }; | |
333 | ||
334 | static void rocker_wait_reset(struct rocker_wait *wait) | |
335 | { | |
336 | wait->done = false; | |
337 | wait->nowait = false; | |
338 | } | |
339 | ||
340 | static void rocker_wait_init(struct rocker_wait *wait) | |
341 | { | |
342 | init_waitqueue_head(&wait->wait); | |
343 | rocker_wait_reset(wait); | |
344 | } | |
345 | ||
346 | static struct rocker_wait *rocker_wait_create(gfp_t gfp) | |
347 | { | |
348 | struct rocker_wait *wait; | |
349 | ||
350 | wait = kmalloc(sizeof(*wait), gfp); | |
351 | if (!wait) | |
352 | return NULL; | |
353 | rocker_wait_init(wait); | |
354 | return wait; | |
355 | } | |
356 | ||
357 | static void rocker_wait_destroy(struct rocker_wait *work) | |
358 | { | |
359 | kfree(work); | |
360 | } | |
361 | ||
362 | static bool rocker_wait_event_timeout(struct rocker_wait *wait, | |
363 | unsigned long timeout) | |
364 | { | |
365 | wait_event_timeout(wait->wait, wait->done, HZ / 10); | |
366 | if (!wait->done) | |
367 | return false; | |
368 | return true; | |
369 | } | |
370 | ||
371 | static void rocker_wait_wake_up(struct rocker_wait *wait) | |
372 | { | |
373 | wait->done = true; | |
374 | wake_up(&wait->wait); | |
375 | } | |
376 | ||
377 | static u32 rocker_msix_vector(struct rocker *rocker, unsigned int vector) | |
378 | { | |
379 | return rocker->msix_entries[vector].vector; | |
380 | } | |
381 | ||
382 | static u32 rocker_msix_tx_vector(struct rocker_port *rocker_port) | |
383 | { | |
384 | return rocker_msix_vector(rocker_port->rocker, | |
385 | ROCKER_MSIX_VEC_TX(rocker_port->port_number)); | |
386 | } | |
387 | ||
388 | static u32 rocker_msix_rx_vector(struct rocker_port *rocker_port) | |
389 | { | |
390 | return rocker_msix_vector(rocker_port->rocker, | |
391 | ROCKER_MSIX_VEC_RX(rocker_port->port_number)); | |
392 | } | |
393 | ||
394 | #define rocker_write32(rocker, reg, val) \ | |
395 | writel((val), (rocker)->hw_addr + (ROCKER_ ## reg)) | |
396 | #define rocker_read32(rocker, reg) \ | |
397 | readl((rocker)->hw_addr + (ROCKER_ ## reg)) | |
398 | #define rocker_write64(rocker, reg, val) \ | |
399 | writeq((val), (rocker)->hw_addr + (ROCKER_ ## reg)) | |
400 | #define rocker_read64(rocker, reg) \ | |
401 | readq((rocker)->hw_addr + (ROCKER_ ## reg)) | |
402 | ||
403 | /***************************** | |
404 | * HW basic testing functions | |
405 | *****************************/ | |
406 | ||
407 | static int rocker_reg_test(struct rocker *rocker) | |
408 | { | |
409 | struct pci_dev *pdev = rocker->pdev; | |
410 | u64 test_reg; | |
411 | u64 rnd; | |
412 | ||
413 | rnd = prandom_u32(); | |
414 | rnd >>= 1; | |
415 | rocker_write32(rocker, TEST_REG, rnd); | |
416 | test_reg = rocker_read32(rocker, TEST_REG); | |
417 | if (test_reg != rnd * 2) { | |
418 | dev_err(&pdev->dev, "unexpected 32bit register value %08llx, expected %08llx\n", | |
419 | test_reg, rnd * 2); | |
420 | return -EIO; | |
421 | } | |
422 | ||
423 | rnd = prandom_u32(); | |
424 | rnd <<= 31; | |
425 | rnd |= prandom_u32(); | |
426 | rocker_write64(rocker, TEST_REG64, rnd); | |
427 | test_reg = rocker_read64(rocker, TEST_REG64); | |
428 | if (test_reg != rnd * 2) { | |
429 | dev_err(&pdev->dev, "unexpected 64bit register value %16llx, expected %16llx\n", | |
430 | test_reg, rnd * 2); | |
431 | return -EIO; | |
432 | } | |
433 | ||
434 | return 0; | |
435 | } | |
436 | ||
437 | static int rocker_dma_test_one(struct rocker *rocker, struct rocker_wait *wait, | |
438 | u32 test_type, dma_addr_t dma_handle, | |
439 | unsigned char *buf, unsigned char *expect, | |
440 | size_t size) | |
441 | { | |
442 | struct pci_dev *pdev = rocker->pdev; | |
443 | int i; | |
444 | ||
445 | rocker_wait_reset(wait); | |
446 | rocker_write32(rocker, TEST_DMA_CTRL, test_type); | |
447 | ||
448 | if (!rocker_wait_event_timeout(wait, HZ / 10)) { | |
449 | dev_err(&pdev->dev, "no interrupt received within a timeout\n"); | |
450 | return -EIO; | |
451 | } | |
452 | ||
453 | for (i = 0; i < size; i++) { | |
454 | if (buf[i] != expect[i]) { | |
455 | dev_err(&pdev->dev, "unexpected memory content %02x at byte %x\n, %02x expected", | |
456 | buf[i], i, expect[i]); | |
457 | return -EIO; | |
458 | } | |
459 | } | |
460 | return 0; | |
461 | } | |
462 | ||
463 | #define ROCKER_TEST_DMA_BUF_SIZE (PAGE_SIZE * 4) | |
464 | #define ROCKER_TEST_DMA_FILL_PATTERN 0x96 | |
465 | ||
466 | static int rocker_dma_test_offset(struct rocker *rocker, | |
467 | struct rocker_wait *wait, int offset) | |
468 | { | |
469 | struct pci_dev *pdev = rocker->pdev; | |
470 | unsigned char *alloc; | |
471 | unsigned char *buf; | |
472 | unsigned char *expect; | |
473 | dma_addr_t dma_handle; | |
474 | int i; | |
475 | int err; | |
476 | ||
477 | alloc = kzalloc(ROCKER_TEST_DMA_BUF_SIZE * 2 + offset, | |
478 | GFP_KERNEL | GFP_DMA); | |
479 | if (!alloc) | |
480 | return -ENOMEM; | |
481 | buf = alloc + offset; | |
482 | expect = buf + ROCKER_TEST_DMA_BUF_SIZE; | |
483 | ||
484 | dma_handle = pci_map_single(pdev, buf, ROCKER_TEST_DMA_BUF_SIZE, | |
485 | PCI_DMA_BIDIRECTIONAL); | |
486 | if (pci_dma_mapping_error(pdev, dma_handle)) { | |
487 | err = -EIO; | |
488 | goto free_alloc; | |
489 | } | |
490 | ||
491 | rocker_write64(rocker, TEST_DMA_ADDR, dma_handle); | |
492 | rocker_write32(rocker, TEST_DMA_SIZE, ROCKER_TEST_DMA_BUF_SIZE); | |
493 | ||
494 | memset(expect, ROCKER_TEST_DMA_FILL_PATTERN, ROCKER_TEST_DMA_BUF_SIZE); | |
495 | err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_FILL, | |
496 | dma_handle, buf, expect, | |
497 | ROCKER_TEST_DMA_BUF_SIZE); | |
498 | if (err) | |
499 | goto unmap; | |
500 | ||
501 | memset(expect, 0, ROCKER_TEST_DMA_BUF_SIZE); | |
502 | err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_CLEAR, | |
503 | dma_handle, buf, expect, | |
504 | ROCKER_TEST_DMA_BUF_SIZE); | |
505 | if (err) | |
506 | goto unmap; | |
507 | ||
508 | prandom_bytes(buf, ROCKER_TEST_DMA_BUF_SIZE); | |
509 | for (i = 0; i < ROCKER_TEST_DMA_BUF_SIZE; i++) | |
510 | expect[i] = ~buf[i]; | |
511 | err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_INVERT, | |
512 | dma_handle, buf, expect, | |
513 | ROCKER_TEST_DMA_BUF_SIZE); | |
514 | if (err) | |
515 | goto unmap; | |
516 | ||
517 | unmap: | |
518 | pci_unmap_single(pdev, dma_handle, ROCKER_TEST_DMA_BUF_SIZE, | |
519 | PCI_DMA_BIDIRECTIONAL); | |
520 | free_alloc: | |
521 | kfree(alloc); | |
522 | ||
523 | return err; | |
524 | } | |
525 | ||
526 | static int rocker_dma_test(struct rocker *rocker, struct rocker_wait *wait) | |
527 | { | |
528 | int i; | |
529 | int err; | |
530 | ||
531 | for (i = 0; i < 8; i++) { | |
532 | err = rocker_dma_test_offset(rocker, wait, i); | |
533 | if (err) | |
534 | return err; | |
535 | } | |
536 | return 0; | |
537 | } | |
538 | ||
539 | static irqreturn_t rocker_test_irq_handler(int irq, void *dev_id) | |
540 | { | |
541 | struct rocker_wait *wait = dev_id; | |
542 | ||
543 | rocker_wait_wake_up(wait); | |
544 | ||
545 | return IRQ_HANDLED; | |
546 | } | |
547 | ||
548 | static int rocker_basic_hw_test(struct rocker *rocker) | |
549 | { | |
550 | struct pci_dev *pdev = rocker->pdev; | |
551 | struct rocker_wait wait; | |
552 | int err; | |
553 | ||
554 | err = rocker_reg_test(rocker); | |
555 | if (err) { | |
556 | dev_err(&pdev->dev, "reg test failed\n"); | |
557 | return err; | |
558 | } | |
559 | ||
560 | err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_TEST), | |
561 | rocker_test_irq_handler, 0, | |
562 | rocker_driver_name, &wait); | |
563 | if (err) { | |
564 | dev_err(&pdev->dev, "cannot assign test irq\n"); | |
565 | return err; | |
566 | } | |
567 | ||
568 | rocker_wait_init(&wait); | |
569 | rocker_write32(rocker, TEST_IRQ, ROCKER_MSIX_VEC_TEST); | |
570 | ||
571 | if (!rocker_wait_event_timeout(&wait, HZ / 10)) { | |
572 | dev_err(&pdev->dev, "no interrupt received within a timeout\n"); | |
573 | err = -EIO; | |
574 | goto free_irq; | |
575 | } | |
576 | ||
577 | err = rocker_dma_test(rocker, &wait); | |
578 | if (err) | |
579 | dev_err(&pdev->dev, "dma test failed\n"); | |
580 | ||
581 | free_irq: | |
582 | free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_TEST), &wait); | |
583 | return err; | |
584 | } | |
585 | ||
586 | /****** | |
587 | * TLV | |
588 | ******/ | |
589 | ||
590 | #define ROCKER_TLV_ALIGNTO 8U | |
591 | #define ROCKER_TLV_ALIGN(len) \ | |
592 | (((len) + ROCKER_TLV_ALIGNTO - 1) & ~(ROCKER_TLV_ALIGNTO - 1)) | |
593 | #define ROCKER_TLV_HDRLEN ROCKER_TLV_ALIGN(sizeof(struct rocker_tlv)) | |
594 | ||
595 | /* <------- ROCKER_TLV_HDRLEN -------> <--- ROCKER_TLV_ALIGN(payload) ---> | |
596 | * +-----------------------------+- - -+- - - - - - - - - - - - - - -+- - -+ | |
597 | * | Header | Pad | Payload | Pad | | |
598 | * | (struct rocker_tlv) | ing | | ing | | |
599 | * +-----------------------------+- - -+- - - - - - - - - - - - - - -+- - -+ | |
600 | * <--------------------------- tlv->len --------------------------> | |
601 | */ | |
602 | ||
603 | static struct rocker_tlv *rocker_tlv_next(const struct rocker_tlv *tlv, | |
604 | int *remaining) | |
605 | { | |
606 | int totlen = ROCKER_TLV_ALIGN(tlv->len); | |
607 | ||
608 | *remaining -= totlen; | |
609 | return (struct rocker_tlv *) ((char *) tlv + totlen); | |
610 | } | |
611 | ||
612 | static int rocker_tlv_ok(const struct rocker_tlv *tlv, int remaining) | |
613 | { | |
614 | return remaining >= (int) ROCKER_TLV_HDRLEN && | |
615 | tlv->len >= ROCKER_TLV_HDRLEN && | |
616 | tlv->len <= remaining; | |
617 | } | |
618 | ||
619 | #define rocker_tlv_for_each(pos, head, len, rem) \ | |
620 | for (pos = head, rem = len; \ | |
621 | rocker_tlv_ok(pos, rem); \ | |
622 | pos = rocker_tlv_next(pos, &(rem))) | |
623 | ||
624 | #define rocker_tlv_for_each_nested(pos, tlv, rem) \ | |
625 | rocker_tlv_for_each(pos, rocker_tlv_data(tlv), \ | |
626 | rocker_tlv_len(tlv), rem) | |
627 | ||
628 | static int rocker_tlv_attr_size(int payload) | |
629 | { | |
630 | return ROCKER_TLV_HDRLEN + payload; | |
631 | } | |
632 | ||
633 | static int rocker_tlv_total_size(int payload) | |
634 | { | |
635 | return ROCKER_TLV_ALIGN(rocker_tlv_attr_size(payload)); | |
636 | } | |
637 | ||
638 | static int rocker_tlv_padlen(int payload) | |
639 | { | |
640 | return rocker_tlv_total_size(payload) - rocker_tlv_attr_size(payload); | |
641 | } | |
642 | ||
643 | static int rocker_tlv_type(const struct rocker_tlv *tlv) | |
644 | { | |
645 | return tlv->type; | |
646 | } | |
647 | ||
648 | static void *rocker_tlv_data(const struct rocker_tlv *tlv) | |
649 | { | |
650 | return (char *) tlv + ROCKER_TLV_HDRLEN; | |
651 | } | |
652 | ||
653 | static int rocker_tlv_len(const struct rocker_tlv *tlv) | |
654 | { | |
655 | return tlv->len - ROCKER_TLV_HDRLEN; | |
656 | } | |
657 | ||
658 | static u8 rocker_tlv_get_u8(const struct rocker_tlv *tlv) | |
659 | { | |
660 | return *(u8 *) rocker_tlv_data(tlv); | |
661 | } | |
662 | ||
663 | static u16 rocker_tlv_get_u16(const struct rocker_tlv *tlv) | |
664 | { | |
665 | return *(u16 *) rocker_tlv_data(tlv); | |
666 | } | |
667 | ||
9b03c71f JP |
668 | static __be16 rocker_tlv_get_be16(const struct rocker_tlv *tlv) |
669 | { | |
670 | return *(__be16 *) rocker_tlv_data(tlv); | |
671 | } | |
672 | ||
4b8ac966 JP |
673 | static u32 rocker_tlv_get_u32(const struct rocker_tlv *tlv) |
674 | { | |
675 | return *(u32 *) rocker_tlv_data(tlv); | |
676 | } | |
677 | ||
678 | static u64 rocker_tlv_get_u64(const struct rocker_tlv *tlv) | |
679 | { | |
680 | return *(u64 *) rocker_tlv_data(tlv); | |
681 | } | |
682 | ||
683 | static void rocker_tlv_parse(struct rocker_tlv **tb, int maxtype, | |
684 | const char *buf, int buf_len) | |
685 | { | |
686 | const struct rocker_tlv *tlv; | |
687 | const struct rocker_tlv *head = (const struct rocker_tlv *) buf; | |
688 | int rem; | |
689 | ||
690 | memset(tb, 0, sizeof(struct rocker_tlv *) * (maxtype + 1)); | |
691 | ||
692 | rocker_tlv_for_each(tlv, head, buf_len, rem) { | |
693 | u32 type = rocker_tlv_type(tlv); | |
694 | ||
695 | if (type > 0 && type <= maxtype) | |
696 | tb[type] = (struct rocker_tlv *) tlv; | |
697 | } | |
698 | } | |
699 | ||
700 | static void rocker_tlv_parse_nested(struct rocker_tlv **tb, int maxtype, | |
701 | const struct rocker_tlv *tlv) | |
702 | { | |
703 | rocker_tlv_parse(tb, maxtype, rocker_tlv_data(tlv), | |
704 | rocker_tlv_len(tlv)); | |
705 | } | |
706 | ||
707 | static void rocker_tlv_parse_desc(struct rocker_tlv **tb, int maxtype, | |
708 | struct rocker_desc_info *desc_info) | |
709 | { | |
710 | rocker_tlv_parse(tb, maxtype, desc_info->data, | |
711 | desc_info->desc->tlv_size); | |
712 | } | |
713 | ||
714 | static struct rocker_tlv *rocker_tlv_start(struct rocker_desc_info *desc_info) | |
715 | { | |
716 | return (struct rocker_tlv *) ((char *) desc_info->data + | |
717 | desc_info->tlv_size); | |
718 | } | |
719 | ||
720 | static int rocker_tlv_put(struct rocker_desc_info *desc_info, | |
721 | int attrtype, int attrlen, const void *data) | |
722 | { | |
723 | int tail_room = desc_info->data_size - desc_info->tlv_size; | |
724 | int total_size = rocker_tlv_total_size(attrlen); | |
725 | struct rocker_tlv *tlv; | |
726 | ||
727 | if (unlikely(tail_room < total_size)) | |
728 | return -EMSGSIZE; | |
729 | ||
730 | tlv = rocker_tlv_start(desc_info); | |
731 | desc_info->tlv_size += total_size; | |
732 | tlv->type = attrtype; | |
733 | tlv->len = rocker_tlv_attr_size(attrlen); | |
734 | memcpy(rocker_tlv_data(tlv), data, attrlen); | |
735 | memset((char *) tlv + tlv->len, 0, rocker_tlv_padlen(attrlen)); | |
736 | return 0; | |
737 | } | |
738 | ||
739 | static int rocker_tlv_put_u8(struct rocker_desc_info *desc_info, | |
740 | int attrtype, u8 value) | |
741 | { | |
742 | return rocker_tlv_put(desc_info, attrtype, sizeof(u8), &value); | |
743 | } | |
744 | ||
745 | static int rocker_tlv_put_u16(struct rocker_desc_info *desc_info, | |
746 | int attrtype, u16 value) | |
747 | { | |
748 | return rocker_tlv_put(desc_info, attrtype, sizeof(u16), &value); | |
749 | } | |
750 | ||
9b03c71f JP |
751 | static int rocker_tlv_put_be16(struct rocker_desc_info *desc_info, |
752 | int attrtype, __be16 value) | |
753 | { | |
754 | return rocker_tlv_put(desc_info, attrtype, sizeof(__be16), &value); | |
755 | } | |
756 | ||
4b8ac966 JP |
757 | static int rocker_tlv_put_u32(struct rocker_desc_info *desc_info, |
758 | int attrtype, u32 value) | |
759 | { | |
760 | return rocker_tlv_put(desc_info, attrtype, sizeof(u32), &value); | |
761 | } | |
762 | ||
9b03c71f JP |
763 | static int rocker_tlv_put_be32(struct rocker_desc_info *desc_info, |
764 | int attrtype, __be32 value) | |
765 | { | |
766 | return rocker_tlv_put(desc_info, attrtype, sizeof(__be32), &value); | |
767 | } | |
768 | ||
4b8ac966 JP |
769 | static int rocker_tlv_put_u64(struct rocker_desc_info *desc_info, |
770 | int attrtype, u64 value) | |
771 | { | |
772 | return rocker_tlv_put(desc_info, attrtype, sizeof(u64), &value); | |
773 | } | |
774 | ||
775 | static struct rocker_tlv * | |
776 | rocker_tlv_nest_start(struct rocker_desc_info *desc_info, int attrtype) | |
777 | { | |
778 | struct rocker_tlv *start = rocker_tlv_start(desc_info); | |
779 | ||
780 | if (rocker_tlv_put(desc_info, attrtype, 0, NULL) < 0) | |
781 | return NULL; | |
782 | ||
783 | return start; | |
784 | } | |
785 | ||
786 | static void rocker_tlv_nest_end(struct rocker_desc_info *desc_info, | |
787 | struct rocker_tlv *start) | |
788 | { | |
789 | start->len = (char *) rocker_tlv_start(desc_info) - (char *) start; | |
790 | } | |
791 | ||
792 | static void rocker_tlv_nest_cancel(struct rocker_desc_info *desc_info, | |
793 | struct rocker_tlv *start) | |
794 | { | |
795 | desc_info->tlv_size = (char *) start - desc_info->data; | |
796 | } | |
797 | ||
798 | /****************************************** | |
799 | * DMA rings and descriptors manipulations | |
800 | ******************************************/ | |
801 | ||
802 | static u32 __pos_inc(u32 pos, size_t limit) | |
803 | { | |
804 | return ++pos == limit ? 0 : pos; | |
805 | } | |
806 | ||
807 | static int rocker_desc_err(struct rocker_desc_info *desc_info) | |
808 | { | |
7eb344f8 SF |
809 | int err = desc_info->desc->comp_err & ~ROCKER_DMA_DESC_COMP_ERR_GEN; |
810 | ||
811 | switch (err) { | |
812 | case ROCKER_OK: | |
813 | return 0; | |
814 | case -ROCKER_ENOENT: | |
815 | return -ENOENT; | |
816 | case -ROCKER_ENXIO: | |
817 | return -ENXIO; | |
818 | case -ROCKER_ENOMEM: | |
819 | return -ENOMEM; | |
820 | case -ROCKER_EEXIST: | |
821 | return -EEXIST; | |
822 | case -ROCKER_EINVAL: | |
823 | return -EINVAL; | |
824 | case -ROCKER_EMSGSIZE: | |
825 | return -EMSGSIZE; | |
826 | case -ROCKER_ENOTSUP: | |
827 | return -EOPNOTSUPP; | |
828 | case -ROCKER_ENOBUFS: | |
829 | return -ENOBUFS; | |
830 | } | |
831 | ||
832 | return -EINVAL; | |
4b8ac966 JP |
833 | } |
834 | ||
835 | static void rocker_desc_gen_clear(struct rocker_desc_info *desc_info) | |
836 | { | |
837 | desc_info->desc->comp_err &= ~ROCKER_DMA_DESC_COMP_ERR_GEN; | |
838 | } | |
839 | ||
840 | static bool rocker_desc_gen(struct rocker_desc_info *desc_info) | |
841 | { | |
842 | u32 comp_err = desc_info->desc->comp_err; | |
843 | ||
844 | return comp_err & ROCKER_DMA_DESC_COMP_ERR_GEN ? true : false; | |
845 | } | |
846 | ||
847 | static void *rocker_desc_cookie_ptr_get(struct rocker_desc_info *desc_info) | |
848 | { | |
adedf37b | 849 | return (void *)(uintptr_t)desc_info->desc->cookie; |
4b8ac966 JP |
850 | } |
851 | ||
852 | static void rocker_desc_cookie_ptr_set(struct rocker_desc_info *desc_info, | |
853 | void *ptr) | |
854 | { | |
adedf37b | 855 | desc_info->desc->cookie = (uintptr_t) ptr; |
4b8ac966 JP |
856 | } |
857 | ||
858 | static struct rocker_desc_info * | |
859 | rocker_desc_head_get(struct rocker_dma_ring_info *info) | |
860 | { | |
861 | static struct rocker_desc_info *desc_info; | |
862 | u32 head = __pos_inc(info->head, info->size); | |
863 | ||
864 | desc_info = &info->desc_info[info->head]; | |
865 | if (head == info->tail) | |
866 | return NULL; /* ring full */ | |
867 | desc_info->tlv_size = 0; | |
868 | return desc_info; | |
869 | } | |
870 | ||
871 | static void rocker_desc_commit(struct rocker_desc_info *desc_info) | |
872 | { | |
873 | desc_info->desc->buf_size = desc_info->data_size; | |
874 | desc_info->desc->tlv_size = desc_info->tlv_size; | |
875 | } | |
876 | ||
877 | static void rocker_desc_head_set(struct rocker *rocker, | |
878 | struct rocker_dma_ring_info *info, | |
879 | struct rocker_desc_info *desc_info) | |
880 | { | |
881 | u32 head = __pos_inc(info->head, info->size); | |
882 | ||
883 | BUG_ON(head == info->tail); | |
884 | rocker_desc_commit(desc_info); | |
885 | info->head = head; | |
886 | rocker_write32(rocker, DMA_DESC_HEAD(info->type), head); | |
887 | } | |
888 | ||
889 | static struct rocker_desc_info * | |
890 | rocker_desc_tail_get(struct rocker_dma_ring_info *info) | |
891 | { | |
892 | static struct rocker_desc_info *desc_info; | |
893 | ||
894 | if (info->tail == info->head) | |
895 | return NULL; /* nothing to be done between head and tail */ | |
896 | desc_info = &info->desc_info[info->tail]; | |
897 | if (!rocker_desc_gen(desc_info)) | |
898 | return NULL; /* gen bit not set, desc is not ready yet */ | |
899 | info->tail = __pos_inc(info->tail, info->size); | |
900 | desc_info->tlv_size = desc_info->desc->tlv_size; | |
901 | return desc_info; | |
902 | } | |
903 | ||
904 | static void rocker_dma_ring_credits_set(struct rocker *rocker, | |
905 | struct rocker_dma_ring_info *info, | |
906 | u32 credits) | |
907 | { | |
908 | if (credits) | |
909 | rocker_write32(rocker, DMA_DESC_CREDITS(info->type), credits); | |
910 | } | |
911 | ||
912 | static unsigned long rocker_dma_ring_size_fix(size_t size) | |
913 | { | |
914 | return max(ROCKER_DMA_SIZE_MIN, | |
915 | min(roundup_pow_of_two(size), ROCKER_DMA_SIZE_MAX)); | |
916 | } | |
917 | ||
918 | static int rocker_dma_ring_create(struct rocker *rocker, | |
919 | unsigned int type, | |
920 | size_t size, | |
921 | struct rocker_dma_ring_info *info) | |
922 | { | |
923 | int i; | |
924 | ||
925 | BUG_ON(size != rocker_dma_ring_size_fix(size)); | |
926 | info->size = size; | |
927 | info->type = type; | |
928 | info->head = 0; | |
929 | info->tail = 0; | |
930 | info->desc_info = kcalloc(info->size, sizeof(*info->desc_info), | |
931 | GFP_KERNEL); | |
932 | if (!info->desc_info) | |
933 | return -ENOMEM; | |
934 | ||
935 | info->desc = pci_alloc_consistent(rocker->pdev, | |
936 | info->size * sizeof(*info->desc), | |
937 | &info->mapaddr); | |
938 | if (!info->desc) { | |
939 | kfree(info->desc_info); | |
940 | return -ENOMEM; | |
941 | } | |
942 | ||
943 | for (i = 0; i < info->size; i++) | |
944 | info->desc_info[i].desc = &info->desc[i]; | |
945 | ||
946 | rocker_write32(rocker, DMA_DESC_CTRL(info->type), | |
947 | ROCKER_DMA_DESC_CTRL_RESET); | |
948 | rocker_write64(rocker, DMA_DESC_ADDR(info->type), info->mapaddr); | |
949 | rocker_write32(rocker, DMA_DESC_SIZE(info->type), info->size); | |
950 | ||
951 | return 0; | |
952 | } | |
953 | ||
954 | static void rocker_dma_ring_destroy(struct rocker *rocker, | |
955 | struct rocker_dma_ring_info *info) | |
956 | { | |
957 | rocker_write64(rocker, DMA_DESC_ADDR(info->type), 0); | |
958 | ||
959 | pci_free_consistent(rocker->pdev, | |
960 | info->size * sizeof(struct rocker_desc), | |
961 | info->desc, info->mapaddr); | |
962 | kfree(info->desc_info); | |
963 | } | |
964 | ||
965 | static void rocker_dma_ring_pass_to_producer(struct rocker *rocker, | |
966 | struct rocker_dma_ring_info *info) | |
967 | { | |
968 | int i; | |
969 | ||
970 | BUG_ON(info->head || info->tail); | |
971 | ||
972 | /* When ring is consumer, we need to advance head for each desc. | |
973 | * That tells hw that the desc is ready to be used by it. | |
974 | */ | |
975 | for (i = 0; i < info->size - 1; i++) | |
976 | rocker_desc_head_set(rocker, info, &info->desc_info[i]); | |
977 | rocker_desc_commit(&info->desc_info[i]); | |
978 | } | |
979 | ||
980 | static int rocker_dma_ring_bufs_alloc(struct rocker *rocker, | |
981 | struct rocker_dma_ring_info *info, | |
982 | int direction, size_t buf_size) | |
983 | { | |
984 | struct pci_dev *pdev = rocker->pdev; | |
985 | int i; | |
986 | int err; | |
987 | ||
988 | for (i = 0; i < info->size; i++) { | |
989 | struct rocker_desc_info *desc_info = &info->desc_info[i]; | |
990 | struct rocker_desc *desc = &info->desc[i]; | |
991 | dma_addr_t dma_handle; | |
992 | char *buf; | |
993 | ||
994 | buf = kzalloc(buf_size, GFP_KERNEL | GFP_DMA); | |
995 | if (!buf) { | |
996 | err = -ENOMEM; | |
997 | goto rollback; | |
998 | } | |
999 | ||
1000 | dma_handle = pci_map_single(pdev, buf, buf_size, direction); | |
1001 | if (pci_dma_mapping_error(pdev, dma_handle)) { | |
1002 | kfree(buf); | |
1003 | err = -EIO; | |
1004 | goto rollback; | |
1005 | } | |
1006 | ||
1007 | desc_info->data = buf; | |
1008 | desc_info->data_size = buf_size; | |
1009 | dma_unmap_addr_set(desc_info, mapaddr, dma_handle); | |
1010 | ||
1011 | desc->buf_addr = dma_handle; | |
1012 | desc->buf_size = buf_size; | |
1013 | } | |
1014 | return 0; | |
1015 | ||
1016 | rollback: | |
1017 | for (i--; i >= 0; i--) { | |
1018 | struct rocker_desc_info *desc_info = &info->desc_info[i]; | |
1019 | ||
1020 | pci_unmap_single(pdev, dma_unmap_addr(desc_info, mapaddr), | |
1021 | desc_info->data_size, direction); | |
1022 | kfree(desc_info->data); | |
1023 | } | |
1024 | return err; | |
1025 | } | |
1026 | ||
1027 | static void rocker_dma_ring_bufs_free(struct rocker *rocker, | |
1028 | struct rocker_dma_ring_info *info, | |
1029 | int direction) | |
1030 | { | |
1031 | struct pci_dev *pdev = rocker->pdev; | |
1032 | int i; | |
1033 | ||
1034 | for (i = 0; i < info->size; i++) { | |
1035 | struct rocker_desc_info *desc_info = &info->desc_info[i]; | |
1036 | struct rocker_desc *desc = &info->desc[i]; | |
1037 | ||
1038 | desc->buf_addr = 0; | |
1039 | desc->buf_size = 0; | |
1040 | pci_unmap_single(pdev, dma_unmap_addr(desc_info, mapaddr), | |
1041 | desc_info->data_size, direction); | |
1042 | kfree(desc_info->data); | |
1043 | } | |
1044 | } | |
1045 | ||
1046 | static int rocker_dma_rings_init(struct rocker *rocker) | |
1047 | { | |
1048 | struct pci_dev *pdev = rocker->pdev; | |
1049 | int err; | |
1050 | ||
1051 | err = rocker_dma_ring_create(rocker, ROCKER_DMA_CMD, | |
1052 | ROCKER_DMA_CMD_DEFAULT_SIZE, | |
1053 | &rocker->cmd_ring); | |
1054 | if (err) { | |
1055 | dev_err(&pdev->dev, "failed to create command dma ring\n"); | |
1056 | return err; | |
1057 | } | |
1058 | ||
1059 | spin_lock_init(&rocker->cmd_ring_lock); | |
1060 | ||
1061 | err = rocker_dma_ring_bufs_alloc(rocker, &rocker->cmd_ring, | |
1062 | PCI_DMA_BIDIRECTIONAL, PAGE_SIZE); | |
1063 | if (err) { | |
1064 | dev_err(&pdev->dev, "failed to alloc command dma ring buffers\n"); | |
1065 | goto err_dma_cmd_ring_bufs_alloc; | |
1066 | } | |
1067 | ||
1068 | err = rocker_dma_ring_create(rocker, ROCKER_DMA_EVENT, | |
1069 | ROCKER_DMA_EVENT_DEFAULT_SIZE, | |
1070 | &rocker->event_ring); | |
1071 | if (err) { | |
1072 | dev_err(&pdev->dev, "failed to create event dma ring\n"); | |
1073 | goto err_dma_event_ring_create; | |
1074 | } | |
1075 | ||
1076 | err = rocker_dma_ring_bufs_alloc(rocker, &rocker->event_ring, | |
1077 | PCI_DMA_FROMDEVICE, PAGE_SIZE); | |
1078 | if (err) { | |
1079 | dev_err(&pdev->dev, "failed to alloc event dma ring buffers\n"); | |
1080 | goto err_dma_event_ring_bufs_alloc; | |
1081 | } | |
1082 | rocker_dma_ring_pass_to_producer(rocker, &rocker->event_ring); | |
1083 | return 0; | |
1084 | ||
1085 | err_dma_event_ring_bufs_alloc: | |
1086 | rocker_dma_ring_destroy(rocker, &rocker->event_ring); | |
1087 | err_dma_event_ring_create: | |
1088 | rocker_dma_ring_bufs_free(rocker, &rocker->cmd_ring, | |
1089 | PCI_DMA_BIDIRECTIONAL); | |
1090 | err_dma_cmd_ring_bufs_alloc: | |
1091 | rocker_dma_ring_destroy(rocker, &rocker->cmd_ring); | |
1092 | return err; | |
1093 | } | |
1094 | ||
1095 | static void rocker_dma_rings_fini(struct rocker *rocker) | |
1096 | { | |
1097 | rocker_dma_ring_bufs_free(rocker, &rocker->event_ring, | |
1098 | PCI_DMA_BIDIRECTIONAL); | |
1099 | rocker_dma_ring_destroy(rocker, &rocker->event_ring); | |
1100 | rocker_dma_ring_bufs_free(rocker, &rocker->cmd_ring, | |
1101 | PCI_DMA_BIDIRECTIONAL); | |
1102 | rocker_dma_ring_destroy(rocker, &rocker->cmd_ring); | |
1103 | } | |
1104 | ||
1105 | static int rocker_dma_rx_ring_skb_map(struct rocker *rocker, | |
1106 | struct rocker_port *rocker_port, | |
1107 | struct rocker_desc_info *desc_info, | |
1108 | struct sk_buff *skb, size_t buf_len) | |
1109 | { | |
1110 | struct pci_dev *pdev = rocker->pdev; | |
1111 | dma_addr_t dma_handle; | |
1112 | ||
1113 | dma_handle = pci_map_single(pdev, skb->data, buf_len, | |
1114 | PCI_DMA_FROMDEVICE); | |
1115 | if (pci_dma_mapping_error(pdev, dma_handle)) | |
1116 | return -EIO; | |
1117 | if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_RX_FRAG_ADDR, dma_handle)) | |
1118 | goto tlv_put_failure; | |
1119 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_RX_FRAG_MAX_LEN, buf_len)) | |
1120 | goto tlv_put_failure; | |
1121 | return 0; | |
1122 | ||
1123 | tlv_put_failure: | |
1124 | pci_unmap_single(pdev, dma_handle, buf_len, PCI_DMA_FROMDEVICE); | |
1125 | desc_info->tlv_size = 0; | |
1126 | return -EMSGSIZE; | |
1127 | } | |
1128 | ||
1129 | static size_t rocker_port_rx_buf_len(struct rocker_port *rocker_port) | |
1130 | { | |
1131 | return rocker_port->dev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN; | |
1132 | } | |
1133 | ||
1134 | static int rocker_dma_rx_ring_skb_alloc(struct rocker *rocker, | |
1135 | struct rocker_port *rocker_port, | |
1136 | struct rocker_desc_info *desc_info) | |
1137 | { | |
1138 | struct net_device *dev = rocker_port->dev; | |
1139 | struct sk_buff *skb; | |
1140 | size_t buf_len = rocker_port_rx_buf_len(rocker_port); | |
1141 | int err; | |
1142 | ||
1143 | /* Ensure that hw will see tlv_size zero in case of an error. | |
1144 | * That tells hw to use another descriptor. | |
1145 | */ | |
1146 | rocker_desc_cookie_ptr_set(desc_info, NULL); | |
1147 | desc_info->tlv_size = 0; | |
1148 | ||
1149 | skb = netdev_alloc_skb_ip_align(dev, buf_len); | |
1150 | if (!skb) | |
1151 | return -ENOMEM; | |
1152 | err = rocker_dma_rx_ring_skb_map(rocker, rocker_port, desc_info, | |
1153 | skb, buf_len); | |
1154 | if (err) { | |
1155 | dev_kfree_skb_any(skb); | |
1156 | return err; | |
1157 | } | |
1158 | rocker_desc_cookie_ptr_set(desc_info, skb); | |
1159 | return 0; | |
1160 | } | |
1161 | ||
1162 | static void rocker_dma_rx_ring_skb_unmap(struct rocker *rocker, | |
1163 | struct rocker_tlv **attrs) | |
1164 | { | |
1165 | struct pci_dev *pdev = rocker->pdev; | |
1166 | dma_addr_t dma_handle; | |
1167 | size_t len; | |
1168 | ||
1169 | if (!attrs[ROCKER_TLV_RX_FRAG_ADDR] || | |
1170 | !attrs[ROCKER_TLV_RX_FRAG_MAX_LEN]) | |
1171 | return; | |
1172 | dma_handle = rocker_tlv_get_u64(attrs[ROCKER_TLV_RX_FRAG_ADDR]); | |
1173 | len = rocker_tlv_get_u16(attrs[ROCKER_TLV_RX_FRAG_MAX_LEN]); | |
1174 | pci_unmap_single(pdev, dma_handle, len, PCI_DMA_FROMDEVICE); | |
1175 | } | |
1176 | ||
1177 | static void rocker_dma_rx_ring_skb_free(struct rocker *rocker, | |
1178 | struct rocker_desc_info *desc_info) | |
1179 | { | |
1180 | struct rocker_tlv *attrs[ROCKER_TLV_RX_MAX + 1]; | |
1181 | struct sk_buff *skb = rocker_desc_cookie_ptr_get(desc_info); | |
1182 | ||
1183 | if (!skb) | |
1184 | return; | |
1185 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_RX_MAX, desc_info); | |
1186 | rocker_dma_rx_ring_skb_unmap(rocker, attrs); | |
1187 | dev_kfree_skb_any(skb); | |
1188 | } | |
1189 | ||
1190 | static int rocker_dma_rx_ring_skbs_alloc(struct rocker *rocker, | |
1191 | struct rocker_port *rocker_port) | |
1192 | { | |
1193 | struct rocker_dma_ring_info *rx_ring = &rocker_port->rx_ring; | |
1194 | int i; | |
1195 | int err; | |
1196 | ||
1197 | for (i = 0; i < rx_ring->size; i++) { | |
1198 | err = rocker_dma_rx_ring_skb_alloc(rocker, rocker_port, | |
1199 | &rx_ring->desc_info[i]); | |
1200 | if (err) | |
1201 | goto rollback; | |
1202 | } | |
1203 | return 0; | |
1204 | ||
1205 | rollback: | |
1206 | for (i--; i >= 0; i--) | |
1207 | rocker_dma_rx_ring_skb_free(rocker, &rx_ring->desc_info[i]); | |
1208 | return err; | |
1209 | } | |
1210 | ||
1211 | static void rocker_dma_rx_ring_skbs_free(struct rocker *rocker, | |
1212 | struct rocker_port *rocker_port) | |
1213 | { | |
1214 | struct rocker_dma_ring_info *rx_ring = &rocker_port->rx_ring; | |
1215 | int i; | |
1216 | ||
1217 | for (i = 0; i < rx_ring->size; i++) | |
1218 | rocker_dma_rx_ring_skb_free(rocker, &rx_ring->desc_info[i]); | |
1219 | } | |
1220 | ||
1221 | static int rocker_port_dma_rings_init(struct rocker_port *rocker_port) | |
1222 | { | |
1223 | struct rocker *rocker = rocker_port->rocker; | |
1224 | int err; | |
1225 | ||
1226 | err = rocker_dma_ring_create(rocker, | |
1227 | ROCKER_DMA_TX(rocker_port->port_number), | |
1228 | ROCKER_DMA_TX_DEFAULT_SIZE, | |
1229 | &rocker_port->tx_ring); | |
1230 | if (err) { | |
1231 | netdev_err(rocker_port->dev, "failed to create tx dma ring\n"); | |
1232 | return err; | |
1233 | } | |
1234 | ||
1235 | err = rocker_dma_ring_bufs_alloc(rocker, &rocker_port->tx_ring, | |
1236 | PCI_DMA_TODEVICE, | |
1237 | ROCKER_DMA_TX_DESC_SIZE); | |
1238 | if (err) { | |
1239 | netdev_err(rocker_port->dev, "failed to alloc tx dma ring buffers\n"); | |
1240 | goto err_dma_tx_ring_bufs_alloc; | |
1241 | } | |
1242 | ||
1243 | err = rocker_dma_ring_create(rocker, | |
1244 | ROCKER_DMA_RX(rocker_port->port_number), | |
1245 | ROCKER_DMA_RX_DEFAULT_SIZE, | |
1246 | &rocker_port->rx_ring); | |
1247 | if (err) { | |
1248 | netdev_err(rocker_port->dev, "failed to create rx dma ring\n"); | |
1249 | goto err_dma_rx_ring_create; | |
1250 | } | |
1251 | ||
1252 | err = rocker_dma_ring_bufs_alloc(rocker, &rocker_port->rx_ring, | |
1253 | PCI_DMA_BIDIRECTIONAL, | |
1254 | ROCKER_DMA_RX_DESC_SIZE); | |
1255 | if (err) { | |
1256 | netdev_err(rocker_port->dev, "failed to alloc rx dma ring buffers\n"); | |
1257 | goto err_dma_rx_ring_bufs_alloc; | |
1258 | } | |
1259 | ||
1260 | err = rocker_dma_rx_ring_skbs_alloc(rocker, rocker_port); | |
1261 | if (err) { | |
1262 | netdev_err(rocker_port->dev, "failed to alloc rx dma ring skbs\n"); | |
1263 | goto err_dma_rx_ring_skbs_alloc; | |
1264 | } | |
1265 | rocker_dma_ring_pass_to_producer(rocker, &rocker_port->rx_ring); | |
1266 | ||
1267 | return 0; | |
1268 | ||
1269 | err_dma_rx_ring_skbs_alloc: | |
1270 | rocker_dma_ring_bufs_free(rocker, &rocker_port->rx_ring, | |
1271 | PCI_DMA_BIDIRECTIONAL); | |
1272 | err_dma_rx_ring_bufs_alloc: | |
1273 | rocker_dma_ring_destroy(rocker, &rocker_port->rx_ring); | |
1274 | err_dma_rx_ring_create: | |
1275 | rocker_dma_ring_bufs_free(rocker, &rocker_port->tx_ring, | |
1276 | PCI_DMA_TODEVICE); | |
1277 | err_dma_tx_ring_bufs_alloc: | |
1278 | rocker_dma_ring_destroy(rocker, &rocker_port->tx_ring); | |
1279 | return err; | |
1280 | } | |
1281 | ||
1282 | static void rocker_port_dma_rings_fini(struct rocker_port *rocker_port) | |
1283 | { | |
1284 | struct rocker *rocker = rocker_port->rocker; | |
1285 | ||
1286 | rocker_dma_rx_ring_skbs_free(rocker, rocker_port); | |
1287 | rocker_dma_ring_bufs_free(rocker, &rocker_port->rx_ring, | |
1288 | PCI_DMA_BIDIRECTIONAL); | |
1289 | rocker_dma_ring_destroy(rocker, &rocker_port->rx_ring); | |
1290 | rocker_dma_ring_bufs_free(rocker, &rocker_port->tx_ring, | |
1291 | PCI_DMA_TODEVICE); | |
1292 | rocker_dma_ring_destroy(rocker, &rocker_port->tx_ring); | |
1293 | } | |
1294 | ||
1295 | static void rocker_port_set_enable(struct rocker_port *rocker_port, bool enable) | |
1296 | { | |
1297 | u64 val = rocker_read64(rocker_port->rocker, PORT_PHYS_ENABLE); | |
1298 | ||
1299 | if (enable) | |
71a83a6d | 1300 | val |= 1ULL << rocker_port->pport; |
4b8ac966 | 1301 | else |
71a83a6d | 1302 | val &= ~(1ULL << rocker_port->pport); |
4b8ac966 JP |
1303 | rocker_write64(rocker_port->rocker, PORT_PHYS_ENABLE, val); |
1304 | } | |
1305 | ||
1306 | /******************************** | |
1307 | * Interrupt handler and helpers | |
1308 | ********************************/ | |
1309 | ||
1310 | static irqreturn_t rocker_cmd_irq_handler(int irq, void *dev_id) | |
1311 | { | |
1312 | struct rocker *rocker = dev_id; | |
1313 | struct rocker_desc_info *desc_info; | |
1314 | struct rocker_wait *wait; | |
1315 | u32 credits = 0; | |
1316 | ||
1317 | spin_lock(&rocker->cmd_ring_lock); | |
1318 | while ((desc_info = rocker_desc_tail_get(&rocker->cmd_ring))) { | |
1319 | wait = rocker_desc_cookie_ptr_get(desc_info); | |
1320 | if (wait->nowait) { | |
1321 | rocker_desc_gen_clear(desc_info); | |
1322 | rocker_wait_destroy(wait); | |
1323 | } else { | |
1324 | rocker_wait_wake_up(wait); | |
1325 | } | |
1326 | credits++; | |
1327 | } | |
1328 | spin_unlock(&rocker->cmd_ring_lock); | |
1329 | rocker_dma_ring_credits_set(rocker, &rocker->cmd_ring, credits); | |
1330 | ||
1331 | return IRQ_HANDLED; | |
1332 | } | |
1333 | ||
1334 | static void rocker_port_link_up(struct rocker_port *rocker_port) | |
1335 | { | |
1336 | netif_carrier_on(rocker_port->dev); | |
1337 | netdev_info(rocker_port->dev, "Link is up\n"); | |
1338 | } | |
1339 | ||
1340 | static void rocker_port_link_down(struct rocker_port *rocker_port) | |
1341 | { | |
1342 | netif_carrier_off(rocker_port->dev); | |
1343 | netdev_info(rocker_port->dev, "Link is down\n"); | |
1344 | } | |
1345 | ||
1346 | static int rocker_event_link_change(struct rocker *rocker, | |
1347 | const struct rocker_tlv *info) | |
1348 | { | |
1349 | struct rocker_tlv *attrs[ROCKER_TLV_EVENT_LINK_CHANGED_MAX + 1]; | |
1350 | unsigned int port_number; | |
1351 | bool link_up; | |
1352 | struct rocker_port *rocker_port; | |
1353 | ||
1354 | rocker_tlv_parse_nested(attrs, ROCKER_TLV_EVENT_LINK_CHANGED_MAX, info); | |
4a6bb6d3 | 1355 | if (!attrs[ROCKER_TLV_EVENT_LINK_CHANGED_PPORT] || |
4b8ac966 JP |
1356 | !attrs[ROCKER_TLV_EVENT_LINK_CHANGED_LINKUP]) |
1357 | return -EIO; | |
1358 | port_number = | |
4a6bb6d3 | 1359 | rocker_tlv_get_u32(attrs[ROCKER_TLV_EVENT_LINK_CHANGED_PPORT]) - 1; |
4b8ac966 JP |
1360 | link_up = rocker_tlv_get_u8(attrs[ROCKER_TLV_EVENT_LINK_CHANGED_LINKUP]); |
1361 | ||
1362 | if (port_number >= rocker->port_count) | |
1363 | return -EINVAL; | |
1364 | ||
1365 | rocker_port = rocker->ports[port_number]; | |
1366 | if (netif_carrier_ok(rocker_port->dev) != link_up) { | |
1367 | if (link_up) | |
1368 | rocker_port_link_up(rocker_port); | |
1369 | else | |
1370 | rocker_port_link_down(rocker_port); | |
1371 | } | |
1372 | ||
1373 | return 0; | |
1374 | } | |
1375 | ||
9f6bbf7c SF |
1376 | #define ROCKER_OP_FLAG_REMOVE BIT(0) |
1377 | #define ROCKER_OP_FLAG_NOWAIT BIT(1) | |
1378 | #define ROCKER_OP_FLAG_LEARNED BIT(2) | |
6c707945 SF |
1379 | #define ROCKER_OP_FLAG_REFRESH BIT(3) |
1380 | ||
1381 | static int rocker_port_fdb(struct rocker_port *rocker_port, | |
1382 | const unsigned char *addr, | |
1383 | __be16 vlan_id, int flags); | |
1384 | ||
1385 | static int rocker_event_mac_vlan_seen(struct rocker *rocker, | |
1386 | const struct rocker_tlv *info) | |
1387 | { | |
1388 | struct rocker_tlv *attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAX + 1]; | |
1389 | unsigned int port_number; | |
1390 | struct rocker_port *rocker_port; | |
1391 | unsigned char *addr; | |
1392 | int flags = ROCKER_OP_FLAG_NOWAIT | ROCKER_OP_FLAG_LEARNED; | |
1393 | __be16 vlan_id; | |
1394 | ||
1395 | rocker_tlv_parse_nested(attrs, ROCKER_TLV_EVENT_MAC_VLAN_MAX, info); | |
4a6bb6d3 | 1396 | if (!attrs[ROCKER_TLV_EVENT_MAC_VLAN_PPORT] || |
6c707945 SF |
1397 | !attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAC] || |
1398 | !attrs[ROCKER_TLV_EVENT_MAC_VLAN_VLAN_ID]) | |
1399 | return -EIO; | |
1400 | port_number = | |
4a6bb6d3 | 1401 | rocker_tlv_get_u32(attrs[ROCKER_TLV_EVENT_MAC_VLAN_PPORT]) - 1; |
6c707945 | 1402 | addr = rocker_tlv_data(attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAC]); |
9b03c71f | 1403 | vlan_id = rocker_tlv_get_be16(attrs[ROCKER_TLV_EVENT_MAC_VLAN_VLAN_ID]); |
6c707945 SF |
1404 | |
1405 | if (port_number >= rocker->port_count) | |
1406 | return -EINVAL; | |
1407 | ||
1408 | rocker_port = rocker->ports[port_number]; | |
1409 | ||
1410 | if (rocker_port->stp_state != BR_STATE_LEARNING && | |
1411 | rocker_port->stp_state != BR_STATE_FORWARDING) | |
1412 | return 0; | |
1413 | ||
1414 | return rocker_port_fdb(rocker_port, addr, vlan_id, flags); | |
1415 | } | |
9f6bbf7c | 1416 | |
4b8ac966 JP |
1417 | static int rocker_event_process(struct rocker *rocker, |
1418 | struct rocker_desc_info *desc_info) | |
1419 | { | |
1420 | struct rocker_tlv *attrs[ROCKER_TLV_EVENT_MAX + 1]; | |
1421 | struct rocker_tlv *info; | |
1422 | u16 type; | |
1423 | ||
1424 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_EVENT_MAX, desc_info); | |
1425 | if (!attrs[ROCKER_TLV_EVENT_TYPE] || | |
1426 | !attrs[ROCKER_TLV_EVENT_INFO]) | |
1427 | return -EIO; | |
1428 | ||
1429 | type = rocker_tlv_get_u16(attrs[ROCKER_TLV_EVENT_TYPE]); | |
1430 | info = attrs[ROCKER_TLV_EVENT_INFO]; | |
1431 | ||
1432 | switch (type) { | |
1433 | case ROCKER_TLV_EVENT_TYPE_LINK_CHANGED: | |
1434 | return rocker_event_link_change(rocker, info); | |
6c707945 SF |
1435 | case ROCKER_TLV_EVENT_TYPE_MAC_VLAN_SEEN: |
1436 | return rocker_event_mac_vlan_seen(rocker, info); | |
4b8ac966 JP |
1437 | } |
1438 | ||
1439 | return -EOPNOTSUPP; | |
1440 | } | |
1441 | ||
1442 | static irqreturn_t rocker_event_irq_handler(int irq, void *dev_id) | |
1443 | { | |
1444 | struct rocker *rocker = dev_id; | |
1445 | struct pci_dev *pdev = rocker->pdev; | |
1446 | struct rocker_desc_info *desc_info; | |
1447 | u32 credits = 0; | |
1448 | int err; | |
1449 | ||
1450 | while ((desc_info = rocker_desc_tail_get(&rocker->event_ring))) { | |
1451 | err = rocker_desc_err(desc_info); | |
1452 | if (err) { | |
1453 | dev_err(&pdev->dev, "event desc received with err %d\n", | |
1454 | err); | |
1455 | } else { | |
1456 | err = rocker_event_process(rocker, desc_info); | |
1457 | if (err) | |
1458 | dev_err(&pdev->dev, "event processing failed with err %d\n", | |
1459 | err); | |
1460 | } | |
1461 | rocker_desc_gen_clear(desc_info); | |
1462 | rocker_desc_head_set(rocker, &rocker->event_ring, desc_info); | |
1463 | credits++; | |
1464 | } | |
1465 | rocker_dma_ring_credits_set(rocker, &rocker->event_ring, credits); | |
1466 | ||
1467 | return IRQ_HANDLED; | |
1468 | } | |
1469 | ||
1470 | static irqreturn_t rocker_tx_irq_handler(int irq, void *dev_id) | |
1471 | { | |
1472 | struct rocker_port *rocker_port = dev_id; | |
1473 | ||
1474 | napi_schedule(&rocker_port->napi_tx); | |
1475 | return IRQ_HANDLED; | |
1476 | } | |
1477 | ||
1478 | static irqreturn_t rocker_rx_irq_handler(int irq, void *dev_id) | |
1479 | { | |
1480 | struct rocker_port *rocker_port = dev_id; | |
1481 | ||
1482 | napi_schedule(&rocker_port->napi_rx); | |
1483 | return IRQ_HANDLED; | |
1484 | } | |
1485 | ||
1486 | /******************** | |
1487 | * Command interface | |
1488 | ********************/ | |
1489 | ||
1490 | typedef int (*rocker_cmd_cb_t)(struct rocker *rocker, | |
1491 | struct rocker_port *rocker_port, | |
1492 | struct rocker_desc_info *desc_info, | |
1493 | void *priv); | |
1494 | ||
1495 | static int rocker_cmd_exec(struct rocker *rocker, | |
1496 | struct rocker_port *rocker_port, | |
1497 | rocker_cmd_cb_t prepare, void *prepare_priv, | |
1498 | rocker_cmd_cb_t process, void *process_priv, | |
1499 | bool nowait) | |
1500 | { | |
1501 | struct rocker_desc_info *desc_info; | |
1502 | struct rocker_wait *wait; | |
1503 | unsigned long flags; | |
1504 | int err; | |
1505 | ||
1506 | wait = rocker_wait_create(nowait ? GFP_ATOMIC : GFP_KERNEL); | |
1507 | if (!wait) | |
1508 | return -ENOMEM; | |
1509 | wait->nowait = nowait; | |
1510 | ||
1511 | spin_lock_irqsave(&rocker->cmd_ring_lock, flags); | |
1512 | desc_info = rocker_desc_head_get(&rocker->cmd_ring); | |
1513 | if (!desc_info) { | |
1514 | spin_unlock_irqrestore(&rocker->cmd_ring_lock, flags); | |
1515 | err = -EAGAIN; | |
1516 | goto out; | |
1517 | } | |
1518 | err = prepare(rocker, rocker_port, desc_info, prepare_priv); | |
1519 | if (err) { | |
1520 | spin_unlock_irqrestore(&rocker->cmd_ring_lock, flags); | |
1521 | goto out; | |
1522 | } | |
1523 | rocker_desc_cookie_ptr_set(desc_info, wait); | |
1524 | rocker_desc_head_set(rocker, &rocker->cmd_ring, desc_info); | |
1525 | spin_unlock_irqrestore(&rocker->cmd_ring_lock, flags); | |
1526 | ||
1527 | if (nowait) | |
1528 | return 0; | |
1529 | ||
1530 | if (!rocker_wait_event_timeout(wait, HZ / 10)) | |
1531 | return -EIO; | |
1532 | ||
1533 | err = rocker_desc_err(desc_info); | |
1534 | if (err) | |
1535 | return err; | |
1536 | ||
1537 | if (process) | |
1538 | err = process(rocker, rocker_port, desc_info, process_priv); | |
1539 | ||
1540 | rocker_desc_gen_clear(desc_info); | |
1541 | out: | |
1542 | rocker_wait_destroy(wait); | |
1543 | return err; | |
1544 | } | |
1545 | ||
1546 | static int | |
1547 | rocker_cmd_get_port_settings_prep(struct rocker *rocker, | |
1548 | struct rocker_port *rocker_port, | |
1549 | struct rocker_desc_info *desc_info, | |
1550 | void *priv) | |
1551 | { | |
1552 | struct rocker_tlv *cmd_info; | |
1553 | ||
1554 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, | |
1555 | ROCKER_TLV_CMD_TYPE_GET_PORT_SETTINGS)) | |
1556 | return -EMSGSIZE; | |
1557 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
1558 | if (!cmd_info) | |
1559 | return -EMSGSIZE; | |
4a6bb6d3 SF |
1560 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT, |
1561 | rocker_port->pport)) | |
4b8ac966 JP |
1562 | return -EMSGSIZE; |
1563 | rocker_tlv_nest_end(desc_info, cmd_info); | |
1564 | return 0; | |
1565 | } | |
1566 | ||
1567 | static int | |
1568 | rocker_cmd_get_port_settings_ethtool_proc(struct rocker *rocker, | |
1569 | struct rocker_port *rocker_port, | |
1570 | struct rocker_desc_info *desc_info, | |
1571 | void *priv) | |
1572 | { | |
1573 | struct ethtool_cmd *ecmd = priv; | |
1574 | struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1]; | |
1575 | struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1]; | |
1576 | u32 speed; | |
1577 | u8 duplex; | |
1578 | u8 autoneg; | |
1579 | ||
1580 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info); | |
1581 | if (!attrs[ROCKER_TLV_CMD_INFO]) | |
1582 | return -EIO; | |
1583 | ||
1584 | rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX, | |
1585 | attrs[ROCKER_TLV_CMD_INFO]); | |
1586 | if (!info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_SPEED] || | |
1587 | !info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX] || | |
1588 | !info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG]) | |
1589 | return -EIO; | |
1590 | ||
1591 | speed = rocker_tlv_get_u32(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_SPEED]); | |
1592 | duplex = rocker_tlv_get_u8(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX]); | |
1593 | autoneg = rocker_tlv_get_u8(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG]); | |
1594 | ||
1595 | ecmd->transceiver = XCVR_INTERNAL; | |
1596 | ecmd->supported = SUPPORTED_TP; | |
1597 | ecmd->phy_address = 0xff; | |
1598 | ecmd->port = PORT_TP; | |
1599 | ethtool_cmd_speed_set(ecmd, speed); | |
1600 | ecmd->duplex = duplex ? DUPLEX_FULL : DUPLEX_HALF; | |
1601 | ecmd->autoneg = autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE; | |
1602 | ||
1603 | return 0; | |
1604 | } | |
1605 | ||
1606 | static int | |
1607 | rocker_cmd_get_port_settings_macaddr_proc(struct rocker *rocker, | |
1608 | struct rocker_port *rocker_port, | |
1609 | struct rocker_desc_info *desc_info, | |
1610 | void *priv) | |
1611 | { | |
1612 | unsigned char *macaddr = priv; | |
1613 | struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1]; | |
1614 | struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1]; | |
1615 | struct rocker_tlv *attr; | |
1616 | ||
1617 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info); | |
1618 | if (!attrs[ROCKER_TLV_CMD_INFO]) | |
1619 | return -EIO; | |
1620 | ||
1621 | rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX, | |
1622 | attrs[ROCKER_TLV_CMD_INFO]); | |
1623 | attr = info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MACADDR]; | |
1624 | if (!attr) | |
1625 | return -EIO; | |
1626 | ||
1627 | if (rocker_tlv_len(attr) != ETH_ALEN) | |
1628 | return -EINVAL; | |
1629 | ||
1630 | ether_addr_copy(macaddr, rocker_tlv_data(attr)); | |
1631 | return 0; | |
1632 | } | |
1633 | ||
db19170b DA |
1634 | struct port_name { |
1635 | char *buf; | |
1636 | size_t len; | |
1637 | }; | |
1638 | ||
1639 | static int | |
1640 | rocker_cmd_get_port_settings_phys_name_proc(struct rocker *rocker, | |
1641 | struct rocker_port *rocker_port, | |
1642 | struct rocker_desc_info *desc_info, | |
1643 | void *priv) | |
1644 | { | |
1645 | struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1]; | |
1646 | struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1]; | |
1647 | struct port_name *name = priv; | |
1648 | struct rocker_tlv *attr; | |
1649 | size_t i, j, len; | |
1650 | char *str; | |
1651 | ||
1652 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info); | |
1653 | if (!attrs[ROCKER_TLV_CMD_INFO]) | |
1654 | return -EIO; | |
1655 | ||
1656 | rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX, | |
1657 | attrs[ROCKER_TLV_CMD_INFO]); | |
1658 | attr = info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_PHYS_NAME]; | |
1659 | if (!attr) | |
1660 | return -EIO; | |
1661 | ||
1662 | len = min_t(size_t, rocker_tlv_len(attr), name->len); | |
1663 | str = rocker_tlv_data(attr); | |
1664 | ||
1665 | /* make sure name only contains alphanumeric characters */ | |
1666 | for (i = j = 0; i < len; ++i) { | |
1667 | if (isalnum(str[i])) { | |
1668 | name->buf[j] = str[i]; | |
1669 | j++; | |
1670 | } | |
1671 | } | |
1672 | ||
1673 | if (j == 0) | |
1674 | return -EIO; | |
1675 | ||
1676 | name->buf[j] = '\0'; | |
1677 | ||
1678 | return 0; | |
1679 | } | |
1680 | ||
4b8ac966 JP |
1681 | static int |
1682 | rocker_cmd_set_port_settings_ethtool_prep(struct rocker *rocker, | |
1683 | struct rocker_port *rocker_port, | |
1684 | struct rocker_desc_info *desc_info, | |
1685 | void *priv) | |
1686 | { | |
1687 | struct ethtool_cmd *ecmd = priv; | |
1688 | struct rocker_tlv *cmd_info; | |
1689 | ||
1690 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, | |
1691 | ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS)) | |
1692 | return -EMSGSIZE; | |
1693 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
1694 | if (!cmd_info) | |
1695 | return -EMSGSIZE; | |
4a6bb6d3 SF |
1696 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT, |
1697 | rocker_port->pport)) | |
4b8ac966 JP |
1698 | return -EMSGSIZE; |
1699 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_SPEED, | |
1700 | ethtool_cmd_speed(ecmd))) | |
1701 | return -EMSGSIZE; | |
1702 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX, | |
1703 | ecmd->duplex)) | |
1704 | return -EMSGSIZE; | |
1705 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG, | |
1706 | ecmd->autoneg)) | |
1707 | return -EMSGSIZE; | |
1708 | rocker_tlv_nest_end(desc_info, cmd_info); | |
1709 | return 0; | |
1710 | } | |
1711 | ||
1712 | static int | |
1713 | rocker_cmd_set_port_settings_macaddr_prep(struct rocker *rocker, | |
1714 | struct rocker_port *rocker_port, | |
1715 | struct rocker_desc_info *desc_info, | |
1716 | void *priv) | |
1717 | { | |
1718 | unsigned char *macaddr = priv; | |
1719 | struct rocker_tlv *cmd_info; | |
1720 | ||
1721 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, | |
1722 | ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS)) | |
1723 | return -EMSGSIZE; | |
1724 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
1725 | if (!cmd_info) | |
1726 | return -EMSGSIZE; | |
4a6bb6d3 SF |
1727 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT, |
1728 | rocker_port->pport)) | |
4b8ac966 JP |
1729 | return -EMSGSIZE; |
1730 | if (rocker_tlv_put(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_MACADDR, | |
1731 | ETH_ALEN, macaddr)) | |
1732 | return -EMSGSIZE; | |
1733 | rocker_tlv_nest_end(desc_info, cmd_info); | |
1734 | return 0; | |
1735 | } | |
1736 | ||
5111f80c SF |
1737 | static int |
1738 | rocker_cmd_set_port_learning_prep(struct rocker *rocker, | |
1739 | struct rocker_port *rocker_port, | |
1740 | struct rocker_desc_info *desc_info, | |
1741 | void *priv) | |
1742 | { | |
1743 | struct rocker_tlv *cmd_info; | |
1744 | ||
1745 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, | |
1746 | ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS)) | |
1747 | return -EMSGSIZE; | |
1748 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
1749 | if (!cmd_info) | |
1750 | return -EMSGSIZE; | |
4a6bb6d3 SF |
1751 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT, |
1752 | rocker_port->pport)) | |
5111f80c SF |
1753 | return -EMSGSIZE; |
1754 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_LEARNING, | |
1755 | !!(rocker_port->brport_flags & BR_LEARNING))) | |
1756 | return -EMSGSIZE; | |
1757 | rocker_tlv_nest_end(desc_info, cmd_info); | |
1758 | return 0; | |
1759 | } | |
1760 | ||
4b8ac966 JP |
1761 | static int rocker_cmd_get_port_settings_ethtool(struct rocker_port *rocker_port, |
1762 | struct ethtool_cmd *ecmd) | |
1763 | { | |
1764 | return rocker_cmd_exec(rocker_port->rocker, rocker_port, | |
1765 | rocker_cmd_get_port_settings_prep, NULL, | |
1766 | rocker_cmd_get_port_settings_ethtool_proc, | |
1767 | ecmd, false); | |
1768 | } | |
1769 | ||
1770 | static int rocker_cmd_get_port_settings_macaddr(struct rocker_port *rocker_port, | |
1771 | unsigned char *macaddr) | |
1772 | { | |
1773 | return rocker_cmd_exec(rocker_port->rocker, rocker_port, | |
1774 | rocker_cmd_get_port_settings_prep, NULL, | |
1775 | rocker_cmd_get_port_settings_macaddr_proc, | |
1776 | macaddr, false); | |
1777 | } | |
1778 | ||
1779 | static int rocker_cmd_set_port_settings_ethtool(struct rocker_port *rocker_port, | |
1780 | struct ethtool_cmd *ecmd) | |
1781 | { | |
1782 | return rocker_cmd_exec(rocker_port->rocker, rocker_port, | |
1783 | rocker_cmd_set_port_settings_ethtool_prep, | |
1784 | ecmd, NULL, NULL, false); | |
1785 | } | |
1786 | ||
1787 | static int rocker_cmd_set_port_settings_macaddr(struct rocker_port *rocker_port, | |
1788 | unsigned char *macaddr) | |
1789 | { | |
1790 | return rocker_cmd_exec(rocker_port->rocker, rocker_port, | |
1791 | rocker_cmd_set_port_settings_macaddr_prep, | |
1792 | macaddr, NULL, NULL, false); | |
1793 | } | |
1794 | ||
5111f80c SF |
1795 | static int rocker_port_set_learning(struct rocker_port *rocker_port) |
1796 | { | |
1797 | return rocker_cmd_exec(rocker_port->rocker, rocker_port, | |
1798 | rocker_cmd_set_port_learning_prep, | |
1799 | NULL, NULL, NULL, false); | |
1800 | } | |
1801 | ||
9f6bbf7c SF |
1802 | static int rocker_cmd_flow_tbl_add_ig_port(struct rocker_desc_info *desc_info, |
1803 | struct rocker_flow_tbl_entry *entry) | |
1804 | { | |
4a6bb6d3 SF |
1805 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT, |
1806 | entry->key.ig_port.in_pport)) | |
9f6bbf7c | 1807 | return -EMSGSIZE; |
4a6bb6d3 SF |
1808 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK, |
1809 | entry->key.ig_port.in_pport_mask)) | |
9f6bbf7c SF |
1810 | return -EMSGSIZE; |
1811 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID, | |
1812 | entry->key.ig_port.goto_tbl)) | |
1813 | return -EMSGSIZE; | |
1814 | ||
1815 | return 0; | |
1816 | } | |
1817 | ||
1818 | static int rocker_cmd_flow_tbl_add_vlan(struct rocker_desc_info *desc_info, | |
1819 | struct rocker_flow_tbl_entry *entry) | |
1820 | { | |
4a6bb6d3 SF |
1821 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT, |
1822 | entry->key.vlan.in_pport)) | |
9f6bbf7c | 1823 | return -EMSGSIZE; |
9b03c71f JP |
1824 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, |
1825 | entry->key.vlan.vlan_id)) | |
9f6bbf7c | 1826 | return -EMSGSIZE; |
9b03c71f JP |
1827 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK, |
1828 | entry->key.vlan.vlan_id_mask)) | |
9f6bbf7c SF |
1829 | return -EMSGSIZE; |
1830 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID, | |
1831 | entry->key.vlan.goto_tbl)) | |
1832 | return -EMSGSIZE; | |
1833 | if (entry->key.vlan.untagged && | |
9b03c71f JP |
1834 | rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_NEW_VLAN_ID, |
1835 | entry->key.vlan.new_vlan_id)) | |
9f6bbf7c SF |
1836 | return -EMSGSIZE; |
1837 | ||
1838 | return 0; | |
1839 | } | |
1840 | ||
1841 | static int rocker_cmd_flow_tbl_add_term_mac(struct rocker_desc_info *desc_info, | |
1842 | struct rocker_flow_tbl_entry *entry) | |
1843 | { | |
4a6bb6d3 SF |
1844 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT, |
1845 | entry->key.term_mac.in_pport)) | |
9f6bbf7c | 1846 | return -EMSGSIZE; |
4a6bb6d3 SF |
1847 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK, |
1848 | entry->key.term_mac.in_pport_mask)) | |
9f6bbf7c | 1849 | return -EMSGSIZE; |
9b03c71f JP |
1850 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE, |
1851 | entry->key.term_mac.eth_type)) | |
9f6bbf7c SF |
1852 | return -EMSGSIZE; |
1853 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC, | |
1854 | ETH_ALEN, entry->key.term_mac.eth_dst)) | |
1855 | return -EMSGSIZE; | |
1856 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK, | |
1857 | ETH_ALEN, entry->key.term_mac.eth_dst_mask)) | |
1858 | return -EMSGSIZE; | |
9b03c71f JP |
1859 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, |
1860 | entry->key.term_mac.vlan_id)) | |
9f6bbf7c | 1861 | return -EMSGSIZE; |
9b03c71f JP |
1862 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK, |
1863 | entry->key.term_mac.vlan_id_mask)) | |
9f6bbf7c SF |
1864 | return -EMSGSIZE; |
1865 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID, | |
1866 | entry->key.term_mac.goto_tbl)) | |
1867 | return -EMSGSIZE; | |
1868 | if (entry->key.term_mac.copy_to_cpu && | |
1869 | rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION, | |
1870 | entry->key.term_mac.copy_to_cpu)) | |
1871 | return -EMSGSIZE; | |
1872 | ||
1873 | return 0; | |
1874 | } | |
1875 | ||
1876 | static int | |
1877 | rocker_cmd_flow_tbl_add_ucast_routing(struct rocker_desc_info *desc_info, | |
1878 | struct rocker_flow_tbl_entry *entry) | |
1879 | { | |
9b03c71f JP |
1880 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE, |
1881 | entry->key.ucast_routing.eth_type)) | |
9f6bbf7c | 1882 | return -EMSGSIZE; |
9b03c71f JP |
1883 | if (rocker_tlv_put_be32(desc_info, ROCKER_TLV_OF_DPA_DST_IP, |
1884 | entry->key.ucast_routing.dst4)) | |
9f6bbf7c | 1885 | return -EMSGSIZE; |
9b03c71f JP |
1886 | if (rocker_tlv_put_be32(desc_info, ROCKER_TLV_OF_DPA_DST_IP_MASK, |
1887 | entry->key.ucast_routing.dst4_mask)) | |
9f6bbf7c SF |
1888 | return -EMSGSIZE; |
1889 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID, | |
1890 | entry->key.ucast_routing.goto_tbl)) | |
1891 | return -EMSGSIZE; | |
1892 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID, | |
1893 | entry->key.ucast_routing.group_id)) | |
1894 | return -EMSGSIZE; | |
1895 | ||
1896 | return 0; | |
1897 | } | |
1898 | ||
1899 | static int rocker_cmd_flow_tbl_add_bridge(struct rocker_desc_info *desc_info, | |
1900 | struct rocker_flow_tbl_entry *entry) | |
1901 | { | |
1902 | if (entry->key.bridge.has_eth_dst && | |
1903 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC, | |
1904 | ETH_ALEN, entry->key.bridge.eth_dst)) | |
1905 | return -EMSGSIZE; | |
1906 | if (entry->key.bridge.has_eth_dst_mask && | |
1907 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK, | |
1908 | ETH_ALEN, entry->key.bridge.eth_dst_mask)) | |
1909 | return -EMSGSIZE; | |
1910 | if (entry->key.bridge.vlan_id && | |
9b03c71f JP |
1911 | rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, |
1912 | entry->key.bridge.vlan_id)) | |
9f6bbf7c SF |
1913 | return -EMSGSIZE; |
1914 | if (entry->key.bridge.tunnel_id && | |
1915 | rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_TUNNEL_ID, | |
1916 | entry->key.bridge.tunnel_id)) | |
1917 | return -EMSGSIZE; | |
1918 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID, | |
1919 | entry->key.bridge.goto_tbl)) | |
1920 | return -EMSGSIZE; | |
1921 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID, | |
1922 | entry->key.bridge.group_id)) | |
1923 | return -EMSGSIZE; | |
1924 | if (entry->key.bridge.copy_to_cpu && | |
1925 | rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION, | |
1926 | entry->key.bridge.copy_to_cpu)) | |
1927 | return -EMSGSIZE; | |
1928 | ||
1929 | return 0; | |
1930 | } | |
1931 | ||
1932 | static int rocker_cmd_flow_tbl_add_acl(struct rocker_desc_info *desc_info, | |
1933 | struct rocker_flow_tbl_entry *entry) | |
1934 | { | |
4a6bb6d3 SF |
1935 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT, |
1936 | entry->key.acl.in_pport)) | |
9f6bbf7c | 1937 | return -EMSGSIZE; |
4a6bb6d3 SF |
1938 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK, |
1939 | entry->key.acl.in_pport_mask)) | |
9f6bbf7c SF |
1940 | return -EMSGSIZE; |
1941 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC, | |
1942 | ETH_ALEN, entry->key.acl.eth_src)) | |
1943 | return -EMSGSIZE; | |
1944 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC_MASK, | |
1945 | ETH_ALEN, entry->key.acl.eth_src_mask)) | |
1946 | return -EMSGSIZE; | |
1947 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC, | |
1948 | ETH_ALEN, entry->key.acl.eth_dst)) | |
1949 | return -EMSGSIZE; | |
1950 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK, | |
1951 | ETH_ALEN, entry->key.acl.eth_dst_mask)) | |
1952 | return -EMSGSIZE; | |
9b03c71f JP |
1953 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE, |
1954 | entry->key.acl.eth_type)) | |
9f6bbf7c | 1955 | return -EMSGSIZE; |
9b03c71f JP |
1956 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, |
1957 | entry->key.acl.vlan_id)) | |
9f6bbf7c | 1958 | return -EMSGSIZE; |
9b03c71f JP |
1959 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK, |
1960 | entry->key.acl.vlan_id_mask)) | |
9f6bbf7c SF |
1961 | return -EMSGSIZE; |
1962 | ||
1963 | switch (ntohs(entry->key.acl.eth_type)) { | |
1964 | case ETH_P_IP: | |
1965 | case ETH_P_IPV6: | |
1966 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_PROTO, | |
1967 | entry->key.acl.ip_proto)) | |
1968 | return -EMSGSIZE; | |
1969 | if (rocker_tlv_put_u8(desc_info, | |
1970 | ROCKER_TLV_OF_DPA_IP_PROTO_MASK, | |
1971 | entry->key.acl.ip_proto_mask)) | |
1972 | return -EMSGSIZE; | |
1973 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_DSCP, | |
1974 | entry->key.acl.ip_tos & 0x3f)) | |
1975 | return -EMSGSIZE; | |
1976 | if (rocker_tlv_put_u8(desc_info, | |
1977 | ROCKER_TLV_OF_DPA_IP_DSCP_MASK, | |
1978 | entry->key.acl.ip_tos_mask & 0x3f)) | |
1979 | return -EMSGSIZE; | |
1980 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_ECN, | |
1981 | (entry->key.acl.ip_tos & 0xc0) >> 6)) | |
1982 | return -EMSGSIZE; | |
1983 | if (rocker_tlv_put_u8(desc_info, | |
1984 | ROCKER_TLV_OF_DPA_IP_ECN_MASK, | |
1985 | (entry->key.acl.ip_tos_mask & 0xc0) >> 6)) | |
1986 | return -EMSGSIZE; | |
1987 | break; | |
1988 | } | |
1989 | ||
1990 | if (entry->key.acl.group_id != ROCKER_GROUP_NONE && | |
1991 | rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID, | |
1992 | entry->key.acl.group_id)) | |
1993 | return -EMSGSIZE; | |
1994 | ||
1995 | return 0; | |
1996 | } | |
1997 | ||
1998 | static int rocker_cmd_flow_tbl_add(struct rocker *rocker, | |
1999 | struct rocker_port *rocker_port, | |
2000 | struct rocker_desc_info *desc_info, | |
2001 | void *priv) | |
2002 | { | |
2003 | struct rocker_flow_tbl_entry *entry = priv; | |
2004 | struct rocker_tlv *cmd_info; | |
2005 | int err = 0; | |
2006 | ||
c1beeef7 | 2007 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd)) |
9f6bbf7c SF |
2008 | return -EMSGSIZE; |
2009 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
2010 | if (!cmd_info) | |
2011 | return -EMSGSIZE; | |
2012 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_TABLE_ID, | |
2013 | entry->key.tbl_id)) | |
2014 | return -EMSGSIZE; | |
2015 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_PRIORITY, | |
2016 | entry->key.priority)) | |
2017 | return -EMSGSIZE; | |
2018 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_HARDTIME, 0)) | |
2019 | return -EMSGSIZE; | |
2020 | if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_OF_DPA_COOKIE, | |
2021 | entry->cookie)) | |
2022 | return -EMSGSIZE; | |
2023 | ||
2024 | switch (entry->key.tbl_id) { | |
2025 | case ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT: | |
2026 | err = rocker_cmd_flow_tbl_add_ig_port(desc_info, entry); | |
2027 | break; | |
2028 | case ROCKER_OF_DPA_TABLE_ID_VLAN: | |
2029 | err = rocker_cmd_flow_tbl_add_vlan(desc_info, entry); | |
2030 | break; | |
2031 | case ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC: | |
2032 | err = rocker_cmd_flow_tbl_add_term_mac(desc_info, entry); | |
2033 | break; | |
2034 | case ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING: | |
2035 | err = rocker_cmd_flow_tbl_add_ucast_routing(desc_info, entry); | |
2036 | break; | |
2037 | case ROCKER_OF_DPA_TABLE_ID_BRIDGING: | |
2038 | err = rocker_cmd_flow_tbl_add_bridge(desc_info, entry); | |
2039 | break; | |
2040 | case ROCKER_OF_DPA_TABLE_ID_ACL_POLICY: | |
2041 | err = rocker_cmd_flow_tbl_add_acl(desc_info, entry); | |
2042 | break; | |
2043 | default: | |
2044 | err = -ENOTSUPP; | |
2045 | break; | |
2046 | } | |
2047 | ||
2048 | if (err) | |
2049 | return err; | |
2050 | ||
2051 | rocker_tlv_nest_end(desc_info, cmd_info); | |
2052 | ||
2053 | return 0; | |
2054 | } | |
2055 | ||
2056 | static int rocker_cmd_flow_tbl_del(struct rocker *rocker, | |
2057 | struct rocker_port *rocker_port, | |
2058 | struct rocker_desc_info *desc_info, | |
2059 | void *priv) | |
2060 | { | |
2061 | const struct rocker_flow_tbl_entry *entry = priv; | |
2062 | struct rocker_tlv *cmd_info; | |
2063 | ||
c1beeef7 | 2064 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd)) |
9f6bbf7c SF |
2065 | return -EMSGSIZE; |
2066 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
2067 | if (!cmd_info) | |
2068 | return -EMSGSIZE; | |
2069 | if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_OF_DPA_COOKIE, | |
2070 | entry->cookie)) | |
2071 | return -EMSGSIZE; | |
2072 | rocker_tlv_nest_end(desc_info, cmd_info); | |
2073 | ||
2074 | return 0; | |
2075 | } | |
2076 | ||
2077 | static int | |
2078 | rocker_cmd_group_tbl_add_l2_interface(struct rocker_desc_info *desc_info, | |
2079 | struct rocker_group_tbl_entry *entry) | |
2080 | { | |
4a6bb6d3 | 2081 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_OUT_PPORT, |
9f6bbf7c SF |
2082 | ROCKER_GROUP_PORT_GET(entry->group_id))) |
2083 | return -EMSGSIZE; | |
2084 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_POP_VLAN, | |
2085 | entry->l2_interface.pop_vlan)) | |
2086 | return -EMSGSIZE; | |
2087 | ||
2088 | return 0; | |
2089 | } | |
2090 | ||
2091 | static int | |
2092 | rocker_cmd_group_tbl_add_l2_rewrite(struct rocker_desc_info *desc_info, | |
2093 | struct rocker_group_tbl_entry *entry) | |
2094 | { | |
2095 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER, | |
2096 | entry->l2_rewrite.group_id)) | |
2097 | return -EMSGSIZE; | |
2098 | if (!is_zero_ether_addr(entry->l2_rewrite.eth_src) && | |
2099 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC, | |
2100 | ETH_ALEN, entry->l2_rewrite.eth_src)) | |
2101 | return -EMSGSIZE; | |
2102 | if (!is_zero_ether_addr(entry->l2_rewrite.eth_dst) && | |
2103 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC, | |
2104 | ETH_ALEN, entry->l2_rewrite.eth_dst)) | |
2105 | return -EMSGSIZE; | |
2106 | if (entry->l2_rewrite.vlan_id && | |
9b03c71f JP |
2107 | rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, |
2108 | entry->l2_rewrite.vlan_id)) | |
9f6bbf7c SF |
2109 | return -EMSGSIZE; |
2110 | ||
2111 | return 0; | |
2112 | } | |
2113 | ||
2114 | static int | |
2115 | rocker_cmd_group_tbl_add_group_ids(struct rocker_desc_info *desc_info, | |
2116 | struct rocker_group_tbl_entry *entry) | |
2117 | { | |
2118 | int i; | |
2119 | struct rocker_tlv *group_ids; | |
2120 | ||
2121 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GROUP_COUNT, | |
2122 | entry->group_count)) | |
2123 | return -EMSGSIZE; | |
2124 | ||
2125 | group_ids = rocker_tlv_nest_start(desc_info, | |
2126 | ROCKER_TLV_OF_DPA_GROUP_IDS); | |
2127 | if (!group_ids) | |
2128 | return -EMSGSIZE; | |
2129 | ||
2130 | for (i = 0; i < entry->group_count; i++) | |
2131 | /* Note TLV array is 1-based */ | |
2132 | if (rocker_tlv_put_u32(desc_info, i + 1, entry->group_ids[i])) | |
2133 | return -EMSGSIZE; | |
2134 | ||
2135 | rocker_tlv_nest_end(desc_info, group_ids); | |
2136 | ||
2137 | return 0; | |
2138 | } | |
2139 | ||
2140 | static int | |
2141 | rocker_cmd_group_tbl_add_l3_unicast(struct rocker_desc_info *desc_info, | |
2142 | struct rocker_group_tbl_entry *entry) | |
2143 | { | |
2144 | if (!is_zero_ether_addr(entry->l3_unicast.eth_src) && | |
2145 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC, | |
2146 | ETH_ALEN, entry->l3_unicast.eth_src)) | |
2147 | return -EMSGSIZE; | |
2148 | if (!is_zero_ether_addr(entry->l3_unicast.eth_dst) && | |
2149 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC, | |
2150 | ETH_ALEN, entry->l3_unicast.eth_dst)) | |
2151 | return -EMSGSIZE; | |
2152 | if (entry->l3_unicast.vlan_id && | |
9b03c71f JP |
2153 | rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, |
2154 | entry->l3_unicast.vlan_id)) | |
9f6bbf7c SF |
2155 | return -EMSGSIZE; |
2156 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_TTL_CHECK, | |
2157 | entry->l3_unicast.ttl_check)) | |
2158 | return -EMSGSIZE; | |
2159 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER, | |
2160 | entry->l3_unicast.group_id)) | |
2161 | return -EMSGSIZE; | |
2162 | ||
2163 | return 0; | |
2164 | } | |
2165 | ||
2166 | static int rocker_cmd_group_tbl_add(struct rocker *rocker, | |
2167 | struct rocker_port *rocker_port, | |
2168 | struct rocker_desc_info *desc_info, | |
2169 | void *priv) | |
2170 | { | |
2171 | struct rocker_group_tbl_entry *entry = priv; | |
2172 | struct rocker_tlv *cmd_info; | |
2173 | int err = 0; | |
2174 | ||
2175 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd)) | |
2176 | return -EMSGSIZE; | |
2177 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
2178 | if (!cmd_info) | |
2179 | return -EMSGSIZE; | |
2180 | ||
2181 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID, | |
2182 | entry->group_id)) | |
2183 | return -EMSGSIZE; | |
2184 | ||
2185 | switch (ROCKER_GROUP_TYPE_GET(entry->group_id)) { | |
2186 | case ROCKER_OF_DPA_GROUP_TYPE_L2_INTERFACE: | |
2187 | err = rocker_cmd_group_tbl_add_l2_interface(desc_info, entry); | |
2188 | break; | |
2189 | case ROCKER_OF_DPA_GROUP_TYPE_L2_REWRITE: | |
2190 | err = rocker_cmd_group_tbl_add_l2_rewrite(desc_info, entry); | |
2191 | break; | |
2192 | case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD: | |
2193 | case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST: | |
2194 | err = rocker_cmd_group_tbl_add_group_ids(desc_info, entry); | |
2195 | break; | |
2196 | case ROCKER_OF_DPA_GROUP_TYPE_L3_UCAST: | |
2197 | err = rocker_cmd_group_tbl_add_l3_unicast(desc_info, entry); | |
2198 | break; | |
2199 | default: | |
2200 | err = -ENOTSUPP; | |
2201 | break; | |
2202 | } | |
2203 | ||
2204 | if (err) | |
2205 | return err; | |
2206 | ||
2207 | rocker_tlv_nest_end(desc_info, cmd_info); | |
2208 | ||
2209 | return 0; | |
2210 | } | |
2211 | ||
2212 | static int rocker_cmd_group_tbl_del(struct rocker *rocker, | |
2213 | struct rocker_port *rocker_port, | |
2214 | struct rocker_desc_info *desc_info, | |
2215 | void *priv) | |
2216 | { | |
2217 | const struct rocker_group_tbl_entry *entry = priv; | |
2218 | struct rocker_tlv *cmd_info; | |
2219 | ||
2220 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd)) | |
2221 | return -EMSGSIZE; | |
2222 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
2223 | if (!cmd_info) | |
2224 | return -EMSGSIZE; | |
2225 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID, | |
2226 | entry->group_id)) | |
2227 | return -EMSGSIZE; | |
2228 | rocker_tlv_nest_end(desc_info, cmd_info); | |
2229 | ||
2230 | return 0; | |
2231 | } | |
2232 | ||
c1beeef7 SF |
2233 | /*************************************************** |
2234 | * Flow, group, FDB, internal VLAN and neigh tables | |
2235 | ***************************************************/ | |
9f6bbf7c SF |
2236 | |
2237 | static int rocker_init_tbls(struct rocker *rocker) | |
2238 | { | |
2239 | hash_init(rocker->flow_tbl); | |
2240 | spin_lock_init(&rocker->flow_tbl_lock); | |
2241 | ||
2242 | hash_init(rocker->group_tbl); | |
2243 | spin_lock_init(&rocker->group_tbl_lock); | |
2244 | ||
2245 | hash_init(rocker->fdb_tbl); | |
2246 | spin_lock_init(&rocker->fdb_tbl_lock); | |
2247 | ||
2248 | hash_init(rocker->internal_vlan_tbl); | |
2249 | spin_lock_init(&rocker->internal_vlan_tbl_lock); | |
2250 | ||
c1beeef7 SF |
2251 | hash_init(rocker->neigh_tbl); |
2252 | spin_lock_init(&rocker->neigh_tbl_lock); | |
2253 | ||
9f6bbf7c SF |
2254 | return 0; |
2255 | } | |
2256 | ||
2257 | static void rocker_free_tbls(struct rocker *rocker) | |
2258 | { | |
2259 | unsigned long flags; | |
2260 | struct rocker_flow_tbl_entry *flow_entry; | |
2261 | struct rocker_group_tbl_entry *group_entry; | |
2262 | struct rocker_fdb_tbl_entry *fdb_entry; | |
2263 | struct rocker_internal_vlan_tbl_entry *internal_vlan_entry; | |
c1beeef7 | 2264 | struct rocker_neigh_tbl_entry *neigh_entry; |
9f6bbf7c SF |
2265 | struct hlist_node *tmp; |
2266 | int bkt; | |
2267 | ||
2268 | spin_lock_irqsave(&rocker->flow_tbl_lock, flags); | |
2269 | hash_for_each_safe(rocker->flow_tbl, bkt, tmp, flow_entry, entry) | |
2270 | hash_del(&flow_entry->entry); | |
2271 | spin_unlock_irqrestore(&rocker->flow_tbl_lock, flags); | |
2272 | ||
2273 | spin_lock_irqsave(&rocker->group_tbl_lock, flags); | |
2274 | hash_for_each_safe(rocker->group_tbl, bkt, tmp, group_entry, entry) | |
2275 | hash_del(&group_entry->entry); | |
2276 | spin_unlock_irqrestore(&rocker->group_tbl_lock, flags); | |
2277 | ||
2278 | spin_lock_irqsave(&rocker->fdb_tbl_lock, flags); | |
2279 | hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, fdb_entry, entry) | |
2280 | hash_del(&fdb_entry->entry); | |
2281 | spin_unlock_irqrestore(&rocker->fdb_tbl_lock, flags); | |
2282 | ||
2283 | spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, flags); | |
2284 | hash_for_each_safe(rocker->internal_vlan_tbl, bkt, | |
2285 | tmp, internal_vlan_entry, entry) | |
2286 | hash_del(&internal_vlan_entry->entry); | |
2287 | spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, flags); | |
c1beeef7 SF |
2288 | |
2289 | spin_lock_irqsave(&rocker->neigh_tbl_lock, flags); | |
2290 | hash_for_each_safe(rocker->neigh_tbl, bkt, tmp, neigh_entry, entry) | |
2291 | hash_del(&neigh_entry->entry); | |
2292 | spin_unlock_irqrestore(&rocker->neigh_tbl_lock, flags); | |
9f6bbf7c SF |
2293 | } |
2294 | ||
2295 | static struct rocker_flow_tbl_entry * | |
2296 | rocker_flow_tbl_find(struct rocker *rocker, struct rocker_flow_tbl_entry *match) | |
2297 | { | |
2298 | struct rocker_flow_tbl_entry *found; | |
c1beeef7 | 2299 | size_t key_len = match->key_len ? match->key_len : sizeof(found->key); |
9f6bbf7c SF |
2300 | |
2301 | hash_for_each_possible(rocker->flow_tbl, found, | |
2302 | entry, match->key_crc32) { | |
c1beeef7 | 2303 | if (memcmp(&found->key, &match->key, key_len) == 0) |
9f6bbf7c SF |
2304 | return found; |
2305 | } | |
2306 | ||
2307 | return NULL; | |
2308 | } | |
2309 | ||
2310 | static int rocker_flow_tbl_add(struct rocker_port *rocker_port, | |
2311 | struct rocker_flow_tbl_entry *match, | |
2312 | bool nowait) | |
2313 | { | |
2314 | struct rocker *rocker = rocker_port->rocker; | |
2315 | struct rocker_flow_tbl_entry *found; | |
c1beeef7 | 2316 | size_t key_len = match->key_len ? match->key_len : sizeof(found->key); |
9f6bbf7c | 2317 | unsigned long flags; |
9f6bbf7c | 2318 | |
c1beeef7 | 2319 | match->key_crc32 = crc32(~0, &match->key, key_len); |
9f6bbf7c SF |
2320 | |
2321 | spin_lock_irqsave(&rocker->flow_tbl_lock, flags); | |
2322 | ||
2323 | found = rocker_flow_tbl_find(rocker, match); | |
2324 | ||
2325 | if (found) { | |
c1beeef7 SF |
2326 | match->cookie = found->cookie; |
2327 | hash_del(&found->entry); | |
2328 | kfree(found); | |
2329 | found = match; | |
2330 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_MOD; | |
9f6bbf7c SF |
2331 | } else { |
2332 | found = match; | |
2333 | found->cookie = rocker->flow_tbl_next_cookie++; | |
c1beeef7 | 2334 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_ADD; |
9f6bbf7c SF |
2335 | } |
2336 | ||
c1beeef7 | 2337 | hash_add(rocker->flow_tbl, &found->entry, found->key_crc32); |
9f6bbf7c SF |
2338 | |
2339 | spin_unlock_irqrestore(&rocker->flow_tbl_lock, flags); | |
2340 | ||
c1beeef7 SF |
2341 | return rocker_cmd_exec(rocker, rocker_port, |
2342 | rocker_cmd_flow_tbl_add, | |
2343 | found, NULL, NULL, nowait); | |
9f6bbf7c SF |
2344 | } |
2345 | ||
2346 | static int rocker_flow_tbl_del(struct rocker_port *rocker_port, | |
2347 | struct rocker_flow_tbl_entry *match, | |
2348 | bool nowait) | |
2349 | { | |
2350 | struct rocker *rocker = rocker_port->rocker; | |
2351 | struct rocker_flow_tbl_entry *found; | |
c1beeef7 | 2352 | size_t key_len = match->key_len ? match->key_len : sizeof(found->key); |
9f6bbf7c | 2353 | unsigned long flags; |
9f6bbf7c SF |
2354 | int err = 0; |
2355 | ||
c1beeef7 | 2356 | match->key_crc32 = crc32(~0, &match->key, key_len); |
9f6bbf7c SF |
2357 | |
2358 | spin_lock_irqsave(&rocker->flow_tbl_lock, flags); | |
2359 | ||
2360 | found = rocker_flow_tbl_find(rocker, match); | |
2361 | ||
2362 | if (found) { | |
c1beeef7 SF |
2363 | hash_del(&found->entry); |
2364 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_DEL; | |
9f6bbf7c SF |
2365 | } |
2366 | ||
2367 | spin_unlock_irqrestore(&rocker->flow_tbl_lock, flags); | |
2368 | ||
2369 | kfree(match); | |
2370 | ||
c1beeef7 | 2371 | if (found) { |
9f6bbf7c SF |
2372 | err = rocker_cmd_exec(rocker, rocker_port, |
2373 | rocker_cmd_flow_tbl_del, | |
2374 | found, NULL, NULL, nowait); | |
2375 | kfree(found); | |
2376 | } | |
2377 | ||
2378 | return err; | |
2379 | } | |
2380 | ||
2381 | static gfp_t rocker_op_flags_gfp(int flags) | |
2382 | { | |
2383 | return flags & ROCKER_OP_FLAG_NOWAIT ? GFP_ATOMIC : GFP_KERNEL; | |
2384 | } | |
2385 | ||
2386 | static int rocker_flow_tbl_do(struct rocker_port *rocker_port, | |
2387 | int flags, struct rocker_flow_tbl_entry *entry) | |
2388 | { | |
2389 | bool nowait = flags & ROCKER_OP_FLAG_NOWAIT; | |
2390 | ||
2391 | if (flags & ROCKER_OP_FLAG_REMOVE) | |
2392 | return rocker_flow_tbl_del(rocker_port, entry, nowait); | |
2393 | else | |
2394 | return rocker_flow_tbl_add(rocker_port, entry, nowait); | |
2395 | } | |
2396 | ||
2397 | static int rocker_flow_tbl_ig_port(struct rocker_port *rocker_port, | |
4a6bb6d3 | 2398 | int flags, u32 in_pport, u32 in_pport_mask, |
9f6bbf7c SF |
2399 | enum rocker_of_dpa_table_id goto_tbl) |
2400 | { | |
2401 | struct rocker_flow_tbl_entry *entry; | |
2402 | ||
2403 | entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags)); | |
2404 | if (!entry) | |
2405 | return -ENOMEM; | |
2406 | ||
2407 | entry->key.priority = ROCKER_PRIORITY_IG_PORT; | |
2408 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT; | |
4a6bb6d3 SF |
2409 | entry->key.ig_port.in_pport = in_pport; |
2410 | entry->key.ig_port.in_pport_mask = in_pport_mask; | |
9f6bbf7c SF |
2411 | entry->key.ig_port.goto_tbl = goto_tbl; |
2412 | ||
2413 | return rocker_flow_tbl_do(rocker_port, flags, entry); | |
2414 | } | |
2415 | ||
2416 | static int rocker_flow_tbl_vlan(struct rocker_port *rocker_port, | |
4a6bb6d3 | 2417 | int flags, u32 in_pport, |
9f6bbf7c SF |
2418 | __be16 vlan_id, __be16 vlan_id_mask, |
2419 | enum rocker_of_dpa_table_id goto_tbl, | |
2420 | bool untagged, __be16 new_vlan_id) | |
2421 | { | |
2422 | struct rocker_flow_tbl_entry *entry; | |
2423 | ||
2424 | entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags)); | |
2425 | if (!entry) | |
2426 | return -ENOMEM; | |
2427 | ||
2428 | entry->key.priority = ROCKER_PRIORITY_VLAN; | |
2429 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_VLAN; | |
4a6bb6d3 | 2430 | entry->key.vlan.in_pport = in_pport; |
9f6bbf7c SF |
2431 | entry->key.vlan.vlan_id = vlan_id; |
2432 | entry->key.vlan.vlan_id_mask = vlan_id_mask; | |
2433 | entry->key.vlan.goto_tbl = goto_tbl; | |
2434 | ||
2435 | entry->key.vlan.untagged = untagged; | |
2436 | entry->key.vlan.new_vlan_id = new_vlan_id; | |
2437 | ||
2438 | return rocker_flow_tbl_do(rocker_port, flags, entry); | |
2439 | } | |
2440 | ||
2441 | static int rocker_flow_tbl_term_mac(struct rocker_port *rocker_port, | |
4a6bb6d3 | 2442 | u32 in_pport, u32 in_pport_mask, |
9f6bbf7c SF |
2443 | __be16 eth_type, const u8 *eth_dst, |
2444 | const u8 *eth_dst_mask, __be16 vlan_id, | |
2445 | __be16 vlan_id_mask, bool copy_to_cpu, | |
2446 | int flags) | |
2447 | { | |
2448 | struct rocker_flow_tbl_entry *entry; | |
2449 | ||
2450 | entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags)); | |
2451 | if (!entry) | |
2452 | return -ENOMEM; | |
2453 | ||
2454 | if (is_multicast_ether_addr(eth_dst)) { | |
2455 | entry->key.priority = ROCKER_PRIORITY_TERM_MAC_MCAST; | |
2456 | entry->key.term_mac.goto_tbl = | |
2457 | ROCKER_OF_DPA_TABLE_ID_MULTICAST_ROUTING; | |
2458 | } else { | |
2459 | entry->key.priority = ROCKER_PRIORITY_TERM_MAC_UCAST; | |
2460 | entry->key.term_mac.goto_tbl = | |
2461 | ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING; | |
2462 | } | |
2463 | ||
2464 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC; | |
4a6bb6d3 SF |
2465 | entry->key.term_mac.in_pport = in_pport; |
2466 | entry->key.term_mac.in_pport_mask = in_pport_mask; | |
9f6bbf7c SF |
2467 | entry->key.term_mac.eth_type = eth_type; |
2468 | ether_addr_copy(entry->key.term_mac.eth_dst, eth_dst); | |
2469 | ether_addr_copy(entry->key.term_mac.eth_dst_mask, eth_dst_mask); | |
2470 | entry->key.term_mac.vlan_id = vlan_id; | |
2471 | entry->key.term_mac.vlan_id_mask = vlan_id_mask; | |
2472 | entry->key.term_mac.copy_to_cpu = copy_to_cpu; | |
2473 | ||
2474 | return rocker_flow_tbl_do(rocker_port, flags, entry); | |
2475 | } | |
2476 | ||
2477 | static int rocker_flow_tbl_bridge(struct rocker_port *rocker_port, | |
2478 | int flags, | |
2479 | const u8 *eth_dst, const u8 *eth_dst_mask, | |
2480 | __be16 vlan_id, u32 tunnel_id, | |
2481 | enum rocker_of_dpa_table_id goto_tbl, | |
2482 | u32 group_id, bool copy_to_cpu) | |
2483 | { | |
2484 | struct rocker_flow_tbl_entry *entry; | |
2485 | u32 priority; | |
2486 | bool vlan_bridging = !!vlan_id; | |
2487 | bool dflt = !eth_dst || (eth_dst && eth_dst_mask); | |
2488 | bool wild = false; | |
2489 | ||
2490 | entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags)); | |
2491 | if (!entry) | |
2492 | return -ENOMEM; | |
2493 | ||
2494 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_BRIDGING; | |
2495 | ||
2496 | if (eth_dst) { | |
2497 | entry->key.bridge.has_eth_dst = 1; | |
2498 | ether_addr_copy(entry->key.bridge.eth_dst, eth_dst); | |
2499 | } | |
2500 | if (eth_dst_mask) { | |
2501 | entry->key.bridge.has_eth_dst_mask = 1; | |
2502 | ether_addr_copy(entry->key.bridge.eth_dst_mask, eth_dst_mask); | |
629161f6 | 2503 | if (!ether_addr_equal(eth_dst_mask, ff_mac)) |
9f6bbf7c SF |
2504 | wild = true; |
2505 | } | |
2506 | ||
2507 | priority = ROCKER_PRIORITY_UNKNOWN; | |
51ace887 | 2508 | if (vlan_bridging && dflt && wild) |
9f6bbf7c | 2509 | priority = ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_WILD; |
51ace887 | 2510 | else if (vlan_bridging && dflt && !wild) |
9f6bbf7c | 2511 | priority = ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_EXACT; |
51ace887 | 2512 | else if (vlan_bridging && !dflt) |
9f6bbf7c | 2513 | priority = ROCKER_PRIORITY_BRIDGING_VLAN; |
51ace887 | 2514 | else if (!vlan_bridging && dflt && wild) |
9f6bbf7c | 2515 | priority = ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_WILD; |
51ace887 | 2516 | else if (!vlan_bridging && dflt && !wild) |
9f6bbf7c | 2517 | priority = ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_EXACT; |
51ace887 | 2518 | else if (!vlan_bridging && !dflt) |
9f6bbf7c SF |
2519 | priority = ROCKER_PRIORITY_BRIDGING_TENANT; |
2520 | ||
2521 | entry->key.priority = priority; | |
2522 | entry->key.bridge.vlan_id = vlan_id; | |
2523 | entry->key.bridge.tunnel_id = tunnel_id; | |
2524 | entry->key.bridge.goto_tbl = goto_tbl; | |
2525 | entry->key.bridge.group_id = group_id; | |
2526 | entry->key.bridge.copy_to_cpu = copy_to_cpu; | |
2527 | ||
2528 | return rocker_flow_tbl_do(rocker_port, flags, entry); | |
2529 | } | |
2530 | ||
c1beeef7 SF |
2531 | static int rocker_flow_tbl_ucast4_routing(struct rocker_port *rocker_port, |
2532 | __be16 eth_type, __be32 dst, | |
2533 | __be32 dst_mask, u32 priority, | |
2534 | enum rocker_of_dpa_table_id goto_tbl, | |
2535 | u32 group_id, int flags) | |
2536 | { | |
2537 | struct rocker_flow_tbl_entry *entry; | |
2538 | ||
2539 | entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags)); | |
2540 | if (!entry) | |
2541 | return -ENOMEM; | |
2542 | ||
2543 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING; | |
2544 | entry->key.priority = priority; | |
2545 | entry->key.ucast_routing.eth_type = eth_type; | |
2546 | entry->key.ucast_routing.dst4 = dst; | |
2547 | entry->key.ucast_routing.dst4_mask = dst_mask; | |
2548 | entry->key.ucast_routing.goto_tbl = goto_tbl; | |
2549 | entry->key.ucast_routing.group_id = group_id; | |
2550 | entry->key_len = offsetof(struct rocker_flow_tbl_key, | |
2551 | ucast_routing.group_id); | |
2552 | ||
2553 | return rocker_flow_tbl_do(rocker_port, flags, entry); | |
2554 | } | |
2555 | ||
9f6bbf7c | 2556 | static int rocker_flow_tbl_acl(struct rocker_port *rocker_port, |
4a6bb6d3 SF |
2557 | int flags, u32 in_pport, |
2558 | u32 in_pport_mask, | |
9f6bbf7c SF |
2559 | const u8 *eth_src, const u8 *eth_src_mask, |
2560 | const u8 *eth_dst, const u8 *eth_dst_mask, | |
2561 | __be16 eth_type, | |
2562 | __be16 vlan_id, __be16 vlan_id_mask, | |
2563 | u8 ip_proto, u8 ip_proto_mask, | |
2564 | u8 ip_tos, u8 ip_tos_mask, | |
2565 | u32 group_id) | |
2566 | { | |
2567 | u32 priority; | |
2568 | struct rocker_flow_tbl_entry *entry; | |
2569 | ||
2570 | entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags)); | |
2571 | if (!entry) | |
2572 | return -ENOMEM; | |
2573 | ||
2574 | priority = ROCKER_PRIORITY_ACL_NORMAL; | |
2575 | if (eth_dst && eth_dst_mask) { | |
629161f6 | 2576 | if (ether_addr_equal(eth_dst_mask, mcast_mac)) |
9f6bbf7c SF |
2577 | priority = ROCKER_PRIORITY_ACL_DFLT; |
2578 | else if (is_link_local_ether_addr(eth_dst)) | |
2579 | priority = ROCKER_PRIORITY_ACL_CTRL; | |
2580 | } | |
2581 | ||
2582 | entry->key.priority = priority; | |
2583 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_ACL_POLICY; | |
4a6bb6d3 SF |
2584 | entry->key.acl.in_pport = in_pport; |
2585 | entry->key.acl.in_pport_mask = in_pport_mask; | |
9f6bbf7c SF |
2586 | |
2587 | if (eth_src) | |
2588 | ether_addr_copy(entry->key.acl.eth_src, eth_src); | |
2589 | if (eth_src_mask) | |
2590 | ether_addr_copy(entry->key.acl.eth_src_mask, eth_src_mask); | |
2591 | if (eth_dst) | |
2592 | ether_addr_copy(entry->key.acl.eth_dst, eth_dst); | |
2593 | if (eth_dst_mask) | |
2594 | ether_addr_copy(entry->key.acl.eth_dst_mask, eth_dst_mask); | |
2595 | ||
2596 | entry->key.acl.eth_type = eth_type; | |
2597 | entry->key.acl.vlan_id = vlan_id; | |
2598 | entry->key.acl.vlan_id_mask = vlan_id_mask; | |
2599 | entry->key.acl.ip_proto = ip_proto; | |
2600 | entry->key.acl.ip_proto_mask = ip_proto_mask; | |
2601 | entry->key.acl.ip_tos = ip_tos; | |
2602 | entry->key.acl.ip_tos_mask = ip_tos_mask; | |
2603 | entry->key.acl.group_id = group_id; | |
2604 | ||
2605 | return rocker_flow_tbl_do(rocker_port, flags, entry); | |
2606 | } | |
2607 | ||
2608 | static struct rocker_group_tbl_entry * | |
2609 | rocker_group_tbl_find(struct rocker *rocker, | |
2610 | struct rocker_group_tbl_entry *match) | |
2611 | { | |
2612 | struct rocker_group_tbl_entry *found; | |
2613 | ||
2614 | hash_for_each_possible(rocker->group_tbl, found, | |
2615 | entry, match->group_id) { | |
2616 | if (found->group_id == match->group_id) | |
2617 | return found; | |
2618 | } | |
2619 | ||
2620 | return NULL; | |
2621 | } | |
2622 | ||
2623 | static void rocker_group_tbl_entry_free(struct rocker_group_tbl_entry *entry) | |
2624 | { | |
2625 | switch (ROCKER_GROUP_TYPE_GET(entry->group_id)) { | |
2626 | case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD: | |
2627 | case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST: | |
2628 | kfree(entry->group_ids); | |
2629 | break; | |
2630 | default: | |
2631 | break; | |
2632 | } | |
2633 | kfree(entry); | |
2634 | } | |
2635 | ||
2636 | static int rocker_group_tbl_add(struct rocker_port *rocker_port, | |
2637 | struct rocker_group_tbl_entry *match, | |
2638 | bool nowait) | |
2639 | { | |
2640 | struct rocker *rocker = rocker_port->rocker; | |
2641 | struct rocker_group_tbl_entry *found; | |
2642 | unsigned long flags; | |
9f6bbf7c SF |
2643 | |
2644 | spin_lock_irqsave(&rocker->group_tbl_lock, flags); | |
2645 | ||
2646 | found = rocker_group_tbl_find(rocker, match); | |
2647 | ||
2648 | if (found) { | |
2649 | hash_del(&found->entry); | |
2650 | rocker_group_tbl_entry_free(found); | |
2651 | found = match; | |
2652 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_MOD; | |
2653 | } else { | |
2654 | found = match; | |
2655 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_ADD; | |
2656 | } | |
2657 | ||
2658 | hash_add(rocker->group_tbl, &found->entry, found->group_id); | |
2659 | ||
2660 | spin_unlock_irqrestore(&rocker->group_tbl_lock, flags); | |
2661 | ||
c1beeef7 SF |
2662 | return rocker_cmd_exec(rocker, rocker_port, |
2663 | rocker_cmd_group_tbl_add, | |
2664 | found, NULL, NULL, nowait); | |
9f6bbf7c SF |
2665 | } |
2666 | ||
2667 | static int rocker_group_tbl_del(struct rocker_port *rocker_port, | |
2668 | struct rocker_group_tbl_entry *match, | |
2669 | bool nowait) | |
2670 | { | |
2671 | struct rocker *rocker = rocker_port->rocker; | |
2672 | struct rocker_group_tbl_entry *found; | |
2673 | unsigned long flags; | |
2674 | int err = 0; | |
2675 | ||
2676 | spin_lock_irqsave(&rocker->group_tbl_lock, flags); | |
2677 | ||
2678 | found = rocker_group_tbl_find(rocker, match); | |
2679 | ||
2680 | if (found) { | |
2681 | hash_del(&found->entry); | |
2682 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_DEL; | |
2683 | } | |
2684 | ||
2685 | spin_unlock_irqrestore(&rocker->group_tbl_lock, flags); | |
2686 | ||
2687 | rocker_group_tbl_entry_free(match); | |
2688 | ||
2689 | if (found) { | |
2690 | err = rocker_cmd_exec(rocker, rocker_port, | |
2691 | rocker_cmd_group_tbl_del, | |
2692 | found, NULL, NULL, nowait); | |
2693 | rocker_group_tbl_entry_free(found); | |
2694 | } | |
2695 | ||
2696 | return err; | |
2697 | } | |
2698 | ||
2699 | static int rocker_group_tbl_do(struct rocker_port *rocker_port, | |
2700 | int flags, struct rocker_group_tbl_entry *entry) | |
2701 | { | |
2702 | bool nowait = flags & ROCKER_OP_FLAG_NOWAIT; | |
2703 | ||
2704 | if (flags & ROCKER_OP_FLAG_REMOVE) | |
2705 | return rocker_group_tbl_del(rocker_port, entry, nowait); | |
2706 | else | |
2707 | return rocker_group_tbl_add(rocker_port, entry, nowait); | |
2708 | } | |
2709 | ||
2710 | static int rocker_group_l2_interface(struct rocker_port *rocker_port, | |
2711 | int flags, __be16 vlan_id, | |
4a6bb6d3 | 2712 | u32 out_pport, int pop_vlan) |
9f6bbf7c SF |
2713 | { |
2714 | struct rocker_group_tbl_entry *entry; | |
2715 | ||
2716 | entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags)); | |
2717 | if (!entry) | |
2718 | return -ENOMEM; | |
2719 | ||
4a6bb6d3 | 2720 | entry->group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport); |
9f6bbf7c SF |
2721 | entry->l2_interface.pop_vlan = pop_vlan; |
2722 | ||
2723 | return rocker_group_tbl_do(rocker_port, flags, entry); | |
2724 | } | |
2725 | ||
2726 | static int rocker_group_l2_fan_out(struct rocker_port *rocker_port, | |
2727 | int flags, u8 group_count, | |
2728 | u32 *group_ids, u32 group_id) | |
2729 | { | |
2730 | struct rocker_group_tbl_entry *entry; | |
2731 | ||
2732 | entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags)); | |
2733 | if (!entry) | |
2734 | return -ENOMEM; | |
2735 | ||
2736 | entry->group_id = group_id; | |
2737 | entry->group_count = group_count; | |
2738 | ||
2739 | entry->group_ids = kcalloc(group_count, sizeof(u32), | |
2740 | rocker_op_flags_gfp(flags)); | |
2741 | if (!entry->group_ids) { | |
2742 | kfree(entry); | |
2743 | return -ENOMEM; | |
2744 | } | |
2745 | memcpy(entry->group_ids, group_ids, group_count * sizeof(u32)); | |
2746 | ||
2747 | return rocker_group_tbl_do(rocker_port, flags, entry); | |
2748 | } | |
2749 | ||
2750 | static int rocker_group_l2_flood(struct rocker_port *rocker_port, | |
2751 | int flags, __be16 vlan_id, | |
2752 | u8 group_count, u32 *group_ids, | |
2753 | u32 group_id) | |
2754 | { | |
2755 | return rocker_group_l2_fan_out(rocker_port, flags, | |
2756 | group_count, group_ids, | |
2757 | group_id); | |
2758 | } | |
2759 | ||
c1beeef7 SF |
2760 | static int rocker_group_l3_unicast(struct rocker_port *rocker_port, |
2761 | int flags, u32 index, u8 *src_mac, | |
2762 | u8 *dst_mac, __be16 vlan_id, | |
2763 | bool ttl_check, u32 pport) | |
2764 | { | |
2765 | struct rocker_group_tbl_entry *entry; | |
2766 | ||
2767 | entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags)); | |
2768 | if (!entry) | |
2769 | return -ENOMEM; | |
2770 | ||
2771 | entry->group_id = ROCKER_GROUP_L3_UNICAST(index); | |
2772 | if (src_mac) | |
2773 | ether_addr_copy(entry->l3_unicast.eth_src, src_mac); | |
2774 | if (dst_mac) | |
2775 | ether_addr_copy(entry->l3_unicast.eth_dst, dst_mac); | |
2776 | entry->l3_unicast.vlan_id = vlan_id; | |
2777 | entry->l3_unicast.ttl_check = ttl_check; | |
2778 | entry->l3_unicast.group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, pport); | |
2779 | ||
2780 | return rocker_group_tbl_do(rocker_port, flags, entry); | |
2781 | } | |
2782 | ||
2783 | static struct rocker_neigh_tbl_entry * | |
2784 | rocker_neigh_tbl_find(struct rocker *rocker, __be32 ip_addr) | |
2785 | { | |
2786 | struct rocker_neigh_tbl_entry *found; | |
2787 | ||
0f43deba SF |
2788 | hash_for_each_possible(rocker->neigh_tbl, found, |
2789 | entry, be32_to_cpu(ip_addr)) | |
c1beeef7 SF |
2790 | if (found->ip_addr == ip_addr) |
2791 | return found; | |
2792 | ||
2793 | return NULL; | |
2794 | } | |
2795 | ||
2796 | static void _rocker_neigh_add(struct rocker *rocker, | |
2797 | struct rocker_neigh_tbl_entry *entry) | |
2798 | { | |
2799 | entry->index = rocker->neigh_tbl_next_index++; | |
2800 | entry->ref_count++; | |
0f43deba SF |
2801 | hash_add(rocker->neigh_tbl, &entry->entry, |
2802 | be32_to_cpu(entry->ip_addr)); | |
c1beeef7 SF |
2803 | } |
2804 | ||
2805 | static void _rocker_neigh_del(struct rocker *rocker, | |
2806 | struct rocker_neigh_tbl_entry *entry) | |
2807 | { | |
2808 | if (--entry->ref_count == 0) { | |
2809 | hash_del(&entry->entry); | |
2810 | kfree(entry); | |
2811 | } | |
2812 | } | |
2813 | ||
2814 | static void _rocker_neigh_update(struct rocker *rocker, | |
2815 | struct rocker_neigh_tbl_entry *entry, | |
2816 | u8 *eth_dst, bool ttl_check) | |
2817 | { | |
2818 | if (eth_dst) { | |
2819 | ether_addr_copy(entry->eth_dst, eth_dst); | |
2820 | entry->ttl_check = ttl_check; | |
2821 | } else { | |
2822 | entry->ref_count++; | |
2823 | } | |
2824 | } | |
2825 | ||
2826 | static int rocker_port_ipv4_neigh(struct rocker_port *rocker_port, | |
2827 | int flags, __be32 ip_addr, u8 *eth_dst) | |
2828 | { | |
2829 | struct rocker *rocker = rocker_port->rocker; | |
2830 | struct rocker_neigh_tbl_entry *entry; | |
2831 | struct rocker_neigh_tbl_entry *found; | |
2832 | unsigned long lock_flags; | |
2833 | __be16 eth_type = htons(ETH_P_IP); | |
2834 | enum rocker_of_dpa_table_id goto_tbl = | |
2835 | ROCKER_OF_DPA_TABLE_ID_ACL_POLICY; | |
2836 | u32 group_id; | |
2837 | u32 priority = 0; | |
2838 | bool adding = !(flags & ROCKER_OP_FLAG_REMOVE); | |
2839 | bool updating; | |
2840 | bool removing; | |
2841 | int err = 0; | |
2842 | ||
2843 | entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags)); | |
2844 | if (!entry) | |
2845 | return -ENOMEM; | |
2846 | ||
2847 | spin_lock_irqsave(&rocker->neigh_tbl_lock, lock_flags); | |
2848 | ||
2849 | found = rocker_neigh_tbl_find(rocker, ip_addr); | |
2850 | ||
2851 | updating = found && adding; | |
2852 | removing = found && !adding; | |
2853 | adding = !found && adding; | |
2854 | ||
2855 | if (adding) { | |
2856 | entry->ip_addr = ip_addr; | |
2857 | entry->dev = rocker_port->dev; | |
2858 | ether_addr_copy(entry->eth_dst, eth_dst); | |
2859 | entry->ttl_check = true; | |
2860 | _rocker_neigh_add(rocker, entry); | |
2861 | } else if (removing) { | |
2862 | memcpy(entry, found, sizeof(*entry)); | |
2863 | _rocker_neigh_del(rocker, found); | |
2864 | } else if (updating) { | |
2865 | _rocker_neigh_update(rocker, found, eth_dst, true); | |
2866 | memcpy(entry, found, sizeof(*entry)); | |
2867 | } else { | |
2868 | err = -ENOENT; | |
2869 | } | |
2870 | ||
2871 | spin_unlock_irqrestore(&rocker->neigh_tbl_lock, lock_flags); | |
2872 | ||
2873 | if (err) | |
2874 | goto err_out; | |
2875 | ||
2876 | /* For each active neighbor, we have an L3 unicast group and | |
2877 | * a /32 route to the neighbor, which uses the L3 unicast | |
2878 | * group. The L3 unicast group can also be referred to by | |
2879 | * other routes' nexthops. | |
2880 | */ | |
2881 | ||
2882 | err = rocker_group_l3_unicast(rocker_port, flags, | |
2883 | entry->index, | |
2884 | rocker_port->dev->dev_addr, | |
2885 | entry->eth_dst, | |
2886 | rocker_port->internal_vlan_id, | |
2887 | entry->ttl_check, | |
2888 | rocker_port->pport); | |
2889 | if (err) { | |
2890 | netdev_err(rocker_port->dev, | |
2891 | "Error (%d) L3 unicast group index %d\n", | |
2892 | err, entry->index); | |
2893 | goto err_out; | |
2894 | } | |
2895 | ||
2896 | if (adding || removing) { | |
2897 | group_id = ROCKER_GROUP_L3_UNICAST(entry->index); | |
2898 | err = rocker_flow_tbl_ucast4_routing(rocker_port, | |
2899 | eth_type, ip_addr, | |
2900 | inet_make_mask(32), | |
2901 | priority, goto_tbl, | |
2902 | group_id, flags); | |
2903 | ||
2904 | if (err) | |
2905 | netdev_err(rocker_port->dev, | |
2906 | "Error (%d) /32 unicast route %pI4 group 0x%08x\n", | |
2907 | err, &entry->ip_addr, group_id); | |
2908 | } | |
2909 | ||
2910 | err_out: | |
2911 | if (!adding) | |
2912 | kfree(entry); | |
2913 | ||
2914 | return err; | |
2915 | } | |
2916 | ||
2917 | static int rocker_port_ipv4_resolve(struct rocker_port *rocker_port, | |
2918 | __be32 ip_addr) | |
2919 | { | |
2920 | struct net_device *dev = rocker_port->dev; | |
0f43deba | 2921 | struct neighbour *n = __ipv4_neigh_lookup(dev, (__force u32)ip_addr); |
c1beeef7 SF |
2922 | int err = 0; |
2923 | ||
2924 | if (!n) | |
2925 | n = neigh_create(&arp_tbl, &ip_addr, dev); | |
2926 | if (!n) | |
2927 | return -ENOMEM; | |
2928 | ||
2929 | /* If the neigh is already resolved, then go ahead and | |
2930 | * install the entry, otherwise start the ARP process to | |
2931 | * resolve the neigh. | |
2932 | */ | |
2933 | ||
2934 | if (n->nud_state & NUD_VALID) | |
2935 | err = rocker_port_ipv4_neigh(rocker_port, 0, ip_addr, n->ha); | |
2936 | else | |
2937 | neigh_event_send(n, NULL); | |
2938 | ||
2939 | return err; | |
2940 | } | |
2941 | ||
2942 | static int rocker_port_ipv4_nh(struct rocker_port *rocker_port, int flags, | |
2943 | __be32 ip_addr, u32 *index) | |
2944 | { | |
2945 | struct rocker *rocker = rocker_port->rocker; | |
2946 | struct rocker_neigh_tbl_entry *entry; | |
2947 | struct rocker_neigh_tbl_entry *found; | |
2948 | unsigned long lock_flags; | |
2949 | bool adding = !(flags & ROCKER_OP_FLAG_REMOVE); | |
2950 | bool updating; | |
2951 | bool removing; | |
2952 | bool resolved = true; | |
2953 | int err = 0; | |
2954 | ||
2955 | entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags)); | |
2956 | if (!entry) | |
2957 | return -ENOMEM; | |
2958 | ||
2959 | spin_lock_irqsave(&rocker->neigh_tbl_lock, lock_flags); | |
2960 | ||
2961 | found = rocker_neigh_tbl_find(rocker, ip_addr); | |
2962 | if (found) | |
2963 | *index = found->index; | |
2964 | ||
2965 | updating = found && adding; | |
2966 | removing = found && !adding; | |
2967 | adding = !found && adding; | |
2968 | ||
2969 | if (adding) { | |
2970 | entry->ip_addr = ip_addr; | |
2971 | entry->dev = rocker_port->dev; | |
2972 | _rocker_neigh_add(rocker, entry); | |
2973 | *index = entry->index; | |
2974 | resolved = false; | |
2975 | } else if (removing) { | |
2976 | _rocker_neigh_del(rocker, found); | |
2977 | } else if (updating) { | |
2978 | _rocker_neigh_update(rocker, found, NULL, false); | |
2979 | resolved = !is_zero_ether_addr(found->eth_dst); | |
2980 | } else { | |
2981 | err = -ENOENT; | |
2982 | } | |
2983 | ||
2984 | spin_unlock_irqrestore(&rocker->neigh_tbl_lock, lock_flags); | |
2985 | ||
2986 | if (!adding) | |
2987 | kfree(entry); | |
2988 | ||
2989 | if (err) | |
2990 | return err; | |
2991 | ||
2992 | /* Resolved means neigh ip_addr is resolved to neigh mac. */ | |
2993 | ||
2994 | if (!resolved) | |
2995 | err = rocker_port_ipv4_resolve(rocker_port, ip_addr); | |
2996 | ||
2997 | return err; | |
2998 | } | |
2999 | ||
6c707945 SF |
3000 | static int rocker_port_vlan_flood_group(struct rocker_port *rocker_port, |
3001 | int flags, __be16 vlan_id) | |
3002 | { | |
3003 | struct rocker_port *p; | |
3004 | struct rocker *rocker = rocker_port->rocker; | |
3005 | u32 group_id = ROCKER_GROUP_L2_FLOOD(vlan_id, 0); | |
04f49faf | 3006 | u32 *group_ids; |
6c707945 | 3007 | u8 group_count = 0; |
04f49faf | 3008 | int err = 0; |
6c707945 SF |
3009 | int i; |
3010 | ||
04f49faf SF |
3011 | group_ids = kcalloc(rocker->port_count, sizeof(u32), |
3012 | rocker_op_flags_gfp(flags)); | |
3013 | if (!group_ids) | |
3014 | return -ENOMEM; | |
3015 | ||
6c707945 SF |
3016 | /* Adjust the flood group for this VLAN. The flood group |
3017 | * references an L2 interface group for each port in this | |
3018 | * VLAN. | |
3019 | */ | |
3020 | ||
3021 | for (i = 0; i < rocker->port_count; i++) { | |
3022 | p = rocker->ports[i]; | |
3023 | if (!rocker_port_is_bridged(p)) | |
3024 | continue; | |
3025 | if (test_bit(ntohs(vlan_id), p->vlan_bitmap)) { | |
3026 | group_ids[group_count++] = | |
4a6bb6d3 | 3027 | ROCKER_GROUP_L2_INTERFACE(vlan_id, p->pport); |
6c707945 SF |
3028 | } |
3029 | } | |
3030 | ||
3031 | /* If there are no bridged ports in this VLAN, we're done */ | |
3032 | if (group_count == 0) | |
04f49faf | 3033 | goto no_ports_in_vlan; |
6c707945 SF |
3034 | |
3035 | err = rocker_group_l2_flood(rocker_port, flags, vlan_id, | |
3036 | group_count, group_ids, | |
3037 | group_id); | |
3038 | if (err) | |
3039 | netdev_err(rocker_port->dev, | |
3040 | "Error (%d) port VLAN l2 flood group\n", err); | |
3041 | ||
04f49faf SF |
3042 | no_ports_in_vlan: |
3043 | kfree(group_ids); | |
6c707945 SF |
3044 | return err; |
3045 | } | |
3046 | ||
3047 | static int rocker_port_vlan_l2_groups(struct rocker_port *rocker_port, | |
3048 | int flags, __be16 vlan_id, | |
3049 | bool pop_vlan) | |
3050 | { | |
3051 | struct rocker *rocker = rocker_port->rocker; | |
3052 | struct rocker_port *p; | |
3053 | bool adding = !(flags & ROCKER_OP_FLAG_REMOVE); | |
4a6bb6d3 | 3054 | u32 out_pport; |
6c707945 SF |
3055 | int ref = 0; |
3056 | int err; | |
3057 | int i; | |
3058 | ||
3059 | /* An L2 interface group for this port in this VLAN, but | |
3060 | * only when port STP state is LEARNING|FORWARDING. | |
3061 | */ | |
3062 | ||
3063 | if (rocker_port->stp_state == BR_STATE_LEARNING || | |
3064 | rocker_port->stp_state == BR_STATE_FORWARDING) { | |
4a6bb6d3 | 3065 | out_pport = rocker_port->pport; |
6c707945 | 3066 | err = rocker_group_l2_interface(rocker_port, flags, |
4a6bb6d3 | 3067 | vlan_id, out_pport, |
6c707945 SF |
3068 | pop_vlan); |
3069 | if (err) { | |
3070 | netdev_err(rocker_port->dev, | |
4a6bb6d3 SF |
3071 | "Error (%d) port VLAN l2 group for pport %d\n", |
3072 | err, out_pport); | |
6c707945 SF |
3073 | return err; |
3074 | } | |
3075 | } | |
3076 | ||
3077 | /* An L2 interface group for this VLAN to CPU port. | |
3078 | * Add when first port joins this VLAN and destroy when | |
3079 | * last port leaves this VLAN. | |
3080 | */ | |
3081 | ||
3082 | for (i = 0; i < rocker->port_count; i++) { | |
3083 | p = rocker->ports[i]; | |
3084 | if (test_bit(ntohs(vlan_id), p->vlan_bitmap)) | |
3085 | ref++; | |
3086 | } | |
3087 | ||
3088 | if ((!adding || ref != 1) && (adding || ref != 0)) | |
3089 | return 0; | |
3090 | ||
4a6bb6d3 | 3091 | out_pport = 0; |
6c707945 | 3092 | err = rocker_group_l2_interface(rocker_port, flags, |
4a6bb6d3 | 3093 | vlan_id, out_pport, |
6c707945 SF |
3094 | pop_vlan); |
3095 | if (err) { | |
3096 | netdev_err(rocker_port->dev, | |
3097 | "Error (%d) port VLAN l2 group for CPU port\n", err); | |
3098 | return err; | |
3099 | } | |
3100 | ||
3101 | return 0; | |
3102 | } | |
3103 | ||
9f6bbf7c SF |
3104 | static struct rocker_ctrl { |
3105 | const u8 *eth_dst; | |
3106 | const u8 *eth_dst_mask; | |
11e6c65a | 3107 | __be16 eth_type; |
9f6bbf7c SF |
3108 | bool acl; |
3109 | bool bridge; | |
3110 | bool term; | |
3111 | bool copy_to_cpu; | |
3112 | } rocker_ctrls[] = { | |
3113 | [ROCKER_CTRL_LINK_LOCAL_MCAST] = { | |
3114 | /* pass link local multicast pkts up to CPU for filtering */ | |
3115 | .eth_dst = ll_mac, | |
3116 | .eth_dst_mask = ll_mask, | |
3117 | .acl = true, | |
3118 | }, | |
3119 | [ROCKER_CTRL_LOCAL_ARP] = { | |
3120 | /* pass local ARP pkts up to CPU */ | |
3121 | .eth_dst = zero_mac, | |
3122 | .eth_dst_mask = zero_mac, | |
3123 | .eth_type = htons(ETH_P_ARP), | |
3124 | .acl = true, | |
3125 | }, | |
3126 | [ROCKER_CTRL_IPV4_MCAST] = { | |
3127 | /* pass IPv4 mcast pkts up to CPU, RFC 1112 */ | |
3128 | .eth_dst = ipv4_mcast, | |
3129 | .eth_dst_mask = ipv4_mask, | |
3130 | .eth_type = htons(ETH_P_IP), | |
3131 | .term = true, | |
3132 | .copy_to_cpu = true, | |
3133 | }, | |
3134 | [ROCKER_CTRL_IPV6_MCAST] = { | |
3135 | /* pass IPv6 mcast pkts up to CPU, RFC 2464 */ | |
3136 | .eth_dst = ipv6_mcast, | |
3137 | .eth_dst_mask = ipv6_mask, | |
3138 | .eth_type = htons(ETH_P_IPV6), | |
3139 | .term = true, | |
3140 | .copy_to_cpu = true, | |
3141 | }, | |
3142 | [ROCKER_CTRL_DFLT_BRIDGING] = { | |
3143 | /* flood any pkts on vlan */ | |
3144 | .bridge = true, | |
3145 | .copy_to_cpu = true, | |
3146 | }, | |
3147 | }; | |
3148 | ||
3149 | static int rocker_port_ctrl_vlan_acl(struct rocker_port *rocker_port, | |
3150 | int flags, struct rocker_ctrl *ctrl, | |
3151 | __be16 vlan_id) | |
3152 | { | |
4a6bb6d3 SF |
3153 | u32 in_pport = rocker_port->pport; |
3154 | u32 in_pport_mask = 0xffffffff; | |
3155 | u32 out_pport = 0; | |
9f6bbf7c SF |
3156 | u8 *eth_src = NULL; |
3157 | u8 *eth_src_mask = NULL; | |
3158 | __be16 vlan_id_mask = htons(0xffff); | |
3159 | u8 ip_proto = 0; | |
3160 | u8 ip_proto_mask = 0; | |
3161 | u8 ip_tos = 0; | |
3162 | u8 ip_tos_mask = 0; | |
4a6bb6d3 | 3163 | u32 group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport); |
9f6bbf7c SF |
3164 | int err; |
3165 | ||
3166 | err = rocker_flow_tbl_acl(rocker_port, flags, | |
4a6bb6d3 | 3167 | in_pport, in_pport_mask, |
9f6bbf7c SF |
3168 | eth_src, eth_src_mask, |
3169 | ctrl->eth_dst, ctrl->eth_dst_mask, | |
3170 | ctrl->eth_type, | |
3171 | vlan_id, vlan_id_mask, | |
3172 | ip_proto, ip_proto_mask, | |
3173 | ip_tos, ip_tos_mask, | |
3174 | group_id); | |
3175 | ||
3176 | if (err) | |
3177 | netdev_err(rocker_port->dev, "Error (%d) ctrl ACL\n", err); | |
3178 | ||
3179 | return err; | |
3180 | } | |
3181 | ||
6c707945 SF |
3182 | static int rocker_port_ctrl_vlan_bridge(struct rocker_port *rocker_port, |
3183 | int flags, struct rocker_ctrl *ctrl, | |
3184 | __be16 vlan_id) | |
3185 | { | |
3186 | enum rocker_of_dpa_table_id goto_tbl = | |
3187 | ROCKER_OF_DPA_TABLE_ID_ACL_POLICY; | |
3188 | u32 group_id = ROCKER_GROUP_L2_FLOOD(vlan_id, 0); | |
3189 | u32 tunnel_id = 0; | |
3190 | int err; | |
3191 | ||
3192 | if (!rocker_port_is_bridged(rocker_port)) | |
3193 | return 0; | |
3194 | ||
3195 | err = rocker_flow_tbl_bridge(rocker_port, flags, | |
3196 | ctrl->eth_dst, ctrl->eth_dst_mask, | |
3197 | vlan_id, tunnel_id, | |
3198 | goto_tbl, group_id, ctrl->copy_to_cpu); | |
3199 | ||
3200 | if (err) | |
3201 | netdev_err(rocker_port->dev, "Error (%d) ctrl FLOOD\n", err); | |
3202 | ||
3203 | return err; | |
3204 | } | |
3205 | ||
9f6bbf7c SF |
3206 | static int rocker_port_ctrl_vlan_term(struct rocker_port *rocker_port, |
3207 | int flags, struct rocker_ctrl *ctrl, | |
3208 | __be16 vlan_id) | |
3209 | { | |
4a6bb6d3 | 3210 | u32 in_pport_mask = 0xffffffff; |
9f6bbf7c SF |
3211 | __be16 vlan_id_mask = htons(0xffff); |
3212 | int err; | |
3213 | ||
3214 | if (ntohs(vlan_id) == 0) | |
3215 | vlan_id = rocker_port->internal_vlan_id; | |
3216 | ||
3217 | err = rocker_flow_tbl_term_mac(rocker_port, | |
4a6bb6d3 | 3218 | rocker_port->pport, in_pport_mask, |
9f6bbf7c SF |
3219 | ctrl->eth_type, ctrl->eth_dst, |
3220 | ctrl->eth_dst_mask, vlan_id, | |
3221 | vlan_id_mask, ctrl->copy_to_cpu, | |
3222 | flags); | |
3223 | ||
3224 | if (err) | |
3225 | netdev_err(rocker_port->dev, "Error (%d) ctrl term\n", err); | |
3226 | ||
3227 | return err; | |
3228 | } | |
3229 | ||
3230 | static int rocker_port_ctrl_vlan(struct rocker_port *rocker_port, int flags, | |
3231 | struct rocker_ctrl *ctrl, __be16 vlan_id) | |
3232 | { | |
3233 | if (ctrl->acl) | |
3234 | return rocker_port_ctrl_vlan_acl(rocker_port, flags, | |
3235 | ctrl, vlan_id); | |
6c707945 SF |
3236 | if (ctrl->bridge) |
3237 | return rocker_port_ctrl_vlan_bridge(rocker_port, flags, | |
3238 | ctrl, vlan_id); | |
9f6bbf7c SF |
3239 | |
3240 | if (ctrl->term) | |
3241 | return rocker_port_ctrl_vlan_term(rocker_port, flags, | |
3242 | ctrl, vlan_id); | |
3243 | ||
3244 | return -EOPNOTSUPP; | |
3245 | } | |
3246 | ||
3247 | static int rocker_port_ctrl_vlan_add(struct rocker_port *rocker_port, | |
3248 | int flags, __be16 vlan_id) | |
3249 | { | |
3250 | int err = 0; | |
3251 | int i; | |
3252 | ||
3253 | for (i = 0; i < ROCKER_CTRL_MAX; i++) { | |
3254 | if (rocker_port->ctrls[i]) { | |
3255 | err = rocker_port_ctrl_vlan(rocker_port, flags, | |
3256 | &rocker_ctrls[i], vlan_id); | |
3257 | if (err) | |
3258 | return err; | |
3259 | } | |
3260 | } | |
3261 | ||
3262 | return err; | |
3263 | } | |
3264 | ||
3265 | static int rocker_port_ctrl(struct rocker_port *rocker_port, int flags, | |
3266 | struct rocker_ctrl *ctrl) | |
3267 | { | |
3268 | u16 vid; | |
3269 | int err = 0; | |
3270 | ||
3271 | for (vid = 1; vid < VLAN_N_VID; vid++) { | |
3272 | if (!test_bit(vid, rocker_port->vlan_bitmap)) | |
3273 | continue; | |
3274 | err = rocker_port_ctrl_vlan(rocker_port, flags, | |
3275 | ctrl, htons(vid)); | |
3276 | if (err) | |
3277 | break; | |
3278 | } | |
3279 | ||
3280 | return err; | |
3281 | } | |
3282 | ||
6c707945 SF |
3283 | static int rocker_port_vlan(struct rocker_port *rocker_port, int flags, |
3284 | u16 vid) | |
3285 | { | |
3286 | enum rocker_of_dpa_table_id goto_tbl = | |
3287 | ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC; | |
4a6bb6d3 | 3288 | u32 in_pport = rocker_port->pport; |
6c707945 SF |
3289 | __be16 vlan_id = htons(vid); |
3290 | __be16 vlan_id_mask = htons(0xffff); | |
3291 | __be16 internal_vlan_id; | |
3292 | bool untagged; | |
3293 | bool adding = !(flags & ROCKER_OP_FLAG_REMOVE); | |
3294 | int err; | |
3295 | ||
3296 | internal_vlan_id = rocker_port_vid_to_vlan(rocker_port, vid, &untagged); | |
3297 | ||
3298 | if (adding && test_and_set_bit(ntohs(internal_vlan_id), | |
3299 | rocker_port->vlan_bitmap)) | |
3300 | return 0; /* already added */ | |
3301 | else if (!adding && !test_and_clear_bit(ntohs(internal_vlan_id), | |
3302 | rocker_port->vlan_bitmap)) | |
3303 | return 0; /* already removed */ | |
3304 | ||
3305 | if (adding) { | |
3306 | err = rocker_port_ctrl_vlan_add(rocker_port, flags, | |
3307 | internal_vlan_id); | |
3308 | if (err) { | |
3309 | netdev_err(rocker_port->dev, | |
3310 | "Error (%d) port ctrl vlan add\n", err); | |
3311 | return err; | |
3312 | } | |
3313 | } | |
3314 | ||
3315 | err = rocker_port_vlan_l2_groups(rocker_port, flags, | |
3316 | internal_vlan_id, untagged); | |
3317 | if (err) { | |
3318 | netdev_err(rocker_port->dev, | |
3319 | "Error (%d) port VLAN l2 groups\n", err); | |
3320 | return err; | |
3321 | } | |
3322 | ||
3323 | err = rocker_port_vlan_flood_group(rocker_port, flags, | |
3324 | internal_vlan_id); | |
3325 | if (err) { | |
3326 | netdev_err(rocker_port->dev, | |
3327 | "Error (%d) port VLAN l2 flood group\n", err); | |
3328 | return err; | |
3329 | } | |
3330 | ||
3331 | err = rocker_flow_tbl_vlan(rocker_port, flags, | |
4a6bb6d3 | 3332 | in_pport, vlan_id, vlan_id_mask, |
6c707945 SF |
3333 | goto_tbl, untagged, internal_vlan_id); |
3334 | if (err) | |
3335 | netdev_err(rocker_port->dev, | |
3336 | "Error (%d) port VLAN table\n", err); | |
3337 | ||
3338 | return err; | |
3339 | } | |
3340 | ||
9f6bbf7c SF |
3341 | static int rocker_port_ig_tbl(struct rocker_port *rocker_port, int flags) |
3342 | { | |
3343 | enum rocker_of_dpa_table_id goto_tbl; | |
4a6bb6d3 SF |
3344 | u32 in_pport; |
3345 | u32 in_pport_mask; | |
9f6bbf7c SF |
3346 | int err; |
3347 | ||
3348 | /* Normal Ethernet Frames. Matches pkts from any local physical | |
3349 | * ports. Goto VLAN tbl. | |
3350 | */ | |
3351 | ||
4a6bb6d3 SF |
3352 | in_pport = 0; |
3353 | in_pport_mask = 0xffff0000; | |
9f6bbf7c SF |
3354 | goto_tbl = ROCKER_OF_DPA_TABLE_ID_VLAN; |
3355 | ||
3356 | err = rocker_flow_tbl_ig_port(rocker_port, flags, | |
4a6bb6d3 | 3357 | in_pport, in_pport_mask, |
9f6bbf7c SF |
3358 | goto_tbl); |
3359 | if (err) | |
3360 | netdev_err(rocker_port->dev, | |
3361 | "Error (%d) ingress port table entry\n", err); | |
3362 | ||
3363 | return err; | |
3364 | } | |
3365 | ||
6c707945 SF |
3366 | struct rocker_fdb_learn_work { |
3367 | struct work_struct work; | |
3368 | struct net_device *dev; | |
3369 | int flags; | |
3370 | u8 addr[ETH_ALEN]; | |
3371 | u16 vid; | |
3372 | }; | |
3373 | ||
3374 | static void rocker_port_fdb_learn_work(struct work_struct *work) | |
3375 | { | |
3376 | struct rocker_fdb_learn_work *lw = | |
3377 | container_of(work, struct rocker_fdb_learn_work, work); | |
3378 | bool removing = (lw->flags & ROCKER_OP_FLAG_REMOVE); | |
3379 | bool learned = (lw->flags & ROCKER_OP_FLAG_LEARNED); | |
ebb9a03a | 3380 | struct switchdev_notifier_fdb_info info; |
3aeb6617 JP |
3381 | |
3382 | info.addr = lw->addr; | |
3383 | info.vid = lw->vid; | |
6c707945 | 3384 | |
51ace887 | 3385 | if (learned && removing) |
ebb9a03a JP |
3386 | call_switchdev_notifiers(SWITCHDEV_FDB_DEL, |
3387 | lw->dev, &info.info); | |
51ace887 | 3388 | else if (learned && !removing) |
ebb9a03a JP |
3389 | call_switchdev_notifiers(SWITCHDEV_FDB_ADD, |
3390 | lw->dev, &info.info); | |
6c707945 SF |
3391 | |
3392 | kfree(work); | |
3393 | } | |
3394 | ||
3395 | static int rocker_port_fdb_learn(struct rocker_port *rocker_port, | |
3396 | int flags, const u8 *addr, __be16 vlan_id) | |
3397 | { | |
3398 | struct rocker_fdb_learn_work *lw; | |
3399 | enum rocker_of_dpa_table_id goto_tbl = | |
3400 | ROCKER_OF_DPA_TABLE_ID_ACL_POLICY; | |
4a6bb6d3 | 3401 | u32 out_pport = rocker_port->pport; |
6c707945 SF |
3402 | u32 tunnel_id = 0; |
3403 | u32 group_id = ROCKER_GROUP_NONE; | |
5111f80c | 3404 | bool syncing = !!(rocker_port->brport_flags & BR_LEARNING_SYNC); |
6c707945 SF |
3405 | bool copy_to_cpu = false; |
3406 | int err; | |
3407 | ||
3408 | if (rocker_port_is_bridged(rocker_port)) | |
4a6bb6d3 | 3409 | group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport); |
6c707945 SF |
3410 | |
3411 | if (!(flags & ROCKER_OP_FLAG_REFRESH)) { | |
3412 | err = rocker_flow_tbl_bridge(rocker_port, flags, addr, NULL, | |
3413 | vlan_id, tunnel_id, goto_tbl, | |
3414 | group_id, copy_to_cpu); | |
3415 | if (err) | |
3416 | return err; | |
3417 | } | |
3418 | ||
5111f80c SF |
3419 | if (!syncing) |
3420 | return 0; | |
3421 | ||
6c707945 SF |
3422 | if (!rocker_port_is_bridged(rocker_port)) |
3423 | return 0; | |
3424 | ||
3425 | lw = kmalloc(sizeof(*lw), rocker_op_flags_gfp(flags)); | |
3426 | if (!lw) | |
3427 | return -ENOMEM; | |
3428 | ||
3429 | INIT_WORK(&lw->work, rocker_port_fdb_learn_work); | |
3430 | ||
3431 | lw->dev = rocker_port->dev; | |
3432 | lw->flags = flags; | |
3433 | ether_addr_copy(lw->addr, addr); | |
3434 | lw->vid = rocker_port_vlan_to_vid(rocker_port, vlan_id); | |
3435 | ||
3436 | schedule_work(&lw->work); | |
3437 | ||
3438 | return 0; | |
3439 | } | |
3440 | ||
3441 | static struct rocker_fdb_tbl_entry * | |
3442 | rocker_fdb_tbl_find(struct rocker *rocker, struct rocker_fdb_tbl_entry *match) | |
3443 | { | |
3444 | struct rocker_fdb_tbl_entry *found; | |
3445 | ||
3446 | hash_for_each_possible(rocker->fdb_tbl, found, entry, match->key_crc32) | |
3447 | if (memcmp(&found->key, &match->key, sizeof(found->key)) == 0) | |
3448 | return found; | |
3449 | ||
3450 | return NULL; | |
3451 | } | |
3452 | ||
3453 | static int rocker_port_fdb(struct rocker_port *rocker_port, | |
3454 | const unsigned char *addr, | |
3455 | __be16 vlan_id, int flags) | |
3456 | { | |
3457 | struct rocker *rocker = rocker_port->rocker; | |
3458 | struct rocker_fdb_tbl_entry *fdb; | |
3459 | struct rocker_fdb_tbl_entry *found; | |
3460 | bool removing = (flags & ROCKER_OP_FLAG_REMOVE); | |
3461 | unsigned long lock_flags; | |
3462 | ||
3463 | fdb = kzalloc(sizeof(*fdb), rocker_op_flags_gfp(flags)); | |
3464 | if (!fdb) | |
3465 | return -ENOMEM; | |
3466 | ||
3467 | fdb->learned = (flags & ROCKER_OP_FLAG_LEARNED); | |
4a6bb6d3 | 3468 | fdb->key.pport = rocker_port->pport; |
6c707945 SF |
3469 | ether_addr_copy(fdb->key.addr, addr); |
3470 | fdb->key.vlan_id = vlan_id; | |
3471 | fdb->key_crc32 = crc32(~0, &fdb->key, sizeof(fdb->key)); | |
3472 | ||
3473 | spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags); | |
3474 | ||
3475 | found = rocker_fdb_tbl_find(rocker, fdb); | |
3476 | ||
3477 | if (removing && found) { | |
3478 | kfree(fdb); | |
3479 | hash_del(&found->entry); | |
3480 | } else if (!removing && !found) { | |
3481 | hash_add(rocker->fdb_tbl, &fdb->entry, fdb->key_crc32); | |
3482 | } | |
3483 | ||
3484 | spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags); | |
3485 | ||
3486 | /* Check if adding and already exists, or removing and can't find */ | |
3487 | if (!found != !removing) { | |
3488 | kfree(fdb); | |
3489 | if (!found && removing) | |
3490 | return 0; | |
3491 | /* Refreshing existing to update aging timers */ | |
3492 | flags |= ROCKER_OP_FLAG_REFRESH; | |
3493 | } | |
3494 | ||
3495 | return rocker_port_fdb_learn(rocker_port, flags, addr, vlan_id); | |
3496 | } | |
3497 | ||
3498 | static int rocker_port_fdb_flush(struct rocker_port *rocker_port) | |
3499 | { | |
3500 | struct rocker *rocker = rocker_port->rocker; | |
3501 | struct rocker_fdb_tbl_entry *found; | |
3502 | unsigned long lock_flags; | |
3503 | int flags = ROCKER_OP_FLAG_NOWAIT | ROCKER_OP_FLAG_REMOVE; | |
3504 | struct hlist_node *tmp; | |
3505 | int bkt; | |
3506 | int err = 0; | |
3507 | ||
3508 | if (rocker_port->stp_state == BR_STATE_LEARNING || | |
3509 | rocker_port->stp_state == BR_STATE_FORWARDING) | |
3510 | return 0; | |
3511 | ||
3512 | spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags); | |
3513 | ||
3514 | hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, found, entry) { | |
4a6bb6d3 | 3515 | if (found->key.pport != rocker_port->pport) |
6c707945 SF |
3516 | continue; |
3517 | if (!found->learned) | |
3518 | continue; | |
3519 | err = rocker_port_fdb_learn(rocker_port, flags, | |
3520 | found->key.addr, | |
3521 | found->key.vlan_id); | |
3522 | if (err) | |
3523 | goto err_out; | |
3524 | hash_del(&found->entry); | |
3525 | } | |
3526 | ||
3527 | err_out: | |
3528 | spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags); | |
3529 | ||
3530 | return err; | |
3531 | } | |
3532 | ||
9f6bbf7c SF |
3533 | static int rocker_port_router_mac(struct rocker_port *rocker_port, |
3534 | int flags, __be16 vlan_id) | |
3535 | { | |
4a6bb6d3 | 3536 | u32 in_pport_mask = 0xffffffff; |
9f6bbf7c SF |
3537 | __be16 eth_type; |
3538 | const u8 *dst_mac_mask = ff_mac; | |
3539 | __be16 vlan_id_mask = htons(0xffff); | |
3540 | bool copy_to_cpu = false; | |
3541 | int err; | |
3542 | ||
3543 | if (ntohs(vlan_id) == 0) | |
3544 | vlan_id = rocker_port->internal_vlan_id; | |
3545 | ||
3546 | eth_type = htons(ETH_P_IP); | |
3547 | err = rocker_flow_tbl_term_mac(rocker_port, | |
4a6bb6d3 | 3548 | rocker_port->pport, in_pport_mask, |
9f6bbf7c SF |
3549 | eth_type, rocker_port->dev->dev_addr, |
3550 | dst_mac_mask, vlan_id, vlan_id_mask, | |
3551 | copy_to_cpu, flags); | |
3552 | if (err) | |
3553 | return err; | |
3554 | ||
3555 | eth_type = htons(ETH_P_IPV6); | |
3556 | err = rocker_flow_tbl_term_mac(rocker_port, | |
4a6bb6d3 | 3557 | rocker_port->pport, in_pport_mask, |
9f6bbf7c SF |
3558 | eth_type, rocker_port->dev->dev_addr, |
3559 | dst_mac_mask, vlan_id, vlan_id_mask, | |
3560 | copy_to_cpu, flags); | |
3561 | ||
3562 | return err; | |
3563 | } | |
3564 | ||
6c707945 SF |
3565 | static int rocker_port_fwding(struct rocker_port *rocker_port) |
3566 | { | |
3567 | bool pop_vlan; | |
4a6bb6d3 | 3568 | u32 out_pport; |
6c707945 SF |
3569 | __be16 vlan_id; |
3570 | u16 vid; | |
3571 | int flags = ROCKER_OP_FLAG_NOWAIT; | |
3572 | int err; | |
3573 | ||
3574 | /* Port will be forwarding-enabled if its STP state is LEARNING | |
3575 | * or FORWARDING. Traffic from CPU can still egress, regardless of | |
3576 | * port STP state. Use L2 interface group on port VLANs as a way | |
3577 | * to toggle port forwarding: if forwarding is disabled, L2 | |
3578 | * interface group will not exist. | |
3579 | */ | |
3580 | ||
3581 | if (rocker_port->stp_state != BR_STATE_LEARNING && | |
3582 | rocker_port->stp_state != BR_STATE_FORWARDING) | |
3583 | flags |= ROCKER_OP_FLAG_REMOVE; | |
3584 | ||
4a6bb6d3 | 3585 | out_pport = rocker_port->pport; |
6c707945 SF |
3586 | for (vid = 1; vid < VLAN_N_VID; vid++) { |
3587 | if (!test_bit(vid, rocker_port->vlan_bitmap)) | |
3588 | continue; | |
3589 | vlan_id = htons(vid); | |
3590 | pop_vlan = rocker_vlan_id_is_internal(vlan_id); | |
3591 | err = rocker_group_l2_interface(rocker_port, flags, | |
4a6bb6d3 | 3592 | vlan_id, out_pport, |
6c707945 SF |
3593 | pop_vlan); |
3594 | if (err) { | |
3595 | netdev_err(rocker_port->dev, | |
4a6bb6d3 SF |
3596 | "Error (%d) port VLAN l2 group for pport %d\n", |
3597 | err, out_pport); | |
6c707945 SF |
3598 | return err; |
3599 | } | |
3600 | } | |
3601 | ||
3602 | return 0; | |
3603 | } | |
3604 | ||
3605 | static int rocker_port_stp_update(struct rocker_port *rocker_port, u8 state) | |
3606 | { | |
3607 | bool want[ROCKER_CTRL_MAX] = { 0, }; | |
3608 | int flags; | |
3609 | int err; | |
3610 | int i; | |
3611 | ||
3612 | if (rocker_port->stp_state == state) | |
3613 | return 0; | |
3614 | ||
3615 | rocker_port->stp_state = state; | |
3616 | ||
3617 | switch (state) { | |
3618 | case BR_STATE_DISABLED: | |
3619 | /* port is completely disabled */ | |
3620 | break; | |
3621 | case BR_STATE_LISTENING: | |
3622 | case BR_STATE_BLOCKING: | |
3623 | want[ROCKER_CTRL_LINK_LOCAL_MCAST] = true; | |
3624 | break; | |
3625 | case BR_STATE_LEARNING: | |
3626 | case BR_STATE_FORWARDING: | |
3627 | want[ROCKER_CTRL_LINK_LOCAL_MCAST] = true; | |
3628 | want[ROCKER_CTRL_IPV4_MCAST] = true; | |
3629 | want[ROCKER_CTRL_IPV6_MCAST] = true; | |
3630 | if (rocker_port_is_bridged(rocker_port)) | |
3631 | want[ROCKER_CTRL_DFLT_BRIDGING] = true; | |
3632 | else | |
3633 | want[ROCKER_CTRL_LOCAL_ARP] = true; | |
3634 | break; | |
3635 | } | |
3636 | ||
3637 | for (i = 0; i < ROCKER_CTRL_MAX; i++) { | |
3638 | if (want[i] != rocker_port->ctrls[i]) { | |
3639 | flags = ROCKER_OP_FLAG_NOWAIT | | |
3640 | (want[i] ? 0 : ROCKER_OP_FLAG_REMOVE); | |
3641 | err = rocker_port_ctrl(rocker_port, flags, | |
3642 | &rocker_ctrls[i]); | |
3643 | if (err) | |
3644 | return err; | |
3645 | rocker_port->ctrls[i] = want[i]; | |
3646 | } | |
3647 | } | |
3648 | ||
3649 | err = rocker_port_fdb_flush(rocker_port); | |
3650 | if (err) | |
3651 | return err; | |
3652 | ||
3653 | return rocker_port_fwding(rocker_port); | |
3654 | } | |
3655 | ||
e47172ab SF |
3656 | static int rocker_port_fwd_enable(struct rocker_port *rocker_port) |
3657 | { | |
3658 | if (rocker_port_is_bridged(rocker_port)) | |
3659 | /* bridge STP will enable port */ | |
3660 | return 0; | |
3661 | ||
3662 | /* port is not bridged, so simulate going to FORWARDING state */ | |
3663 | return rocker_port_stp_update(rocker_port, BR_STATE_FORWARDING); | |
3664 | } | |
3665 | ||
3666 | static int rocker_port_fwd_disable(struct rocker_port *rocker_port) | |
3667 | { | |
3668 | if (rocker_port_is_bridged(rocker_port)) | |
3669 | /* bridge STP will disable port */ | |
3670 | return 0; | |
3671 | ||
3672 | /* port is not bridged, so simulate going to DISABLED state */ | |
3673 | return rocker_port_stp_update(rocker_port, BR_STATE_DISABLED); | |
3674 | } | |
3675 | ||
9f6bbf7c SF |
3676 | static struct rocker_internal_vlan_tbl_entry * |
3677 | rocker_internal_vlan_tbl_find(struct rocker *rocker, int ifindex) | |
3678 | { | |
3679 | struct rocker_internal_vlan_tbl_entry *found; | |
3680 | ||
3681 | hash_for_each_possible(rocker->internal_vlan_tbl, found, | |
3682 | entry, ifindex) { | |
3683 | if (found->ifindex == ifindex) | |
3684 | return found; | |
3685 | } | |
3686 | ||
3687 | return NULL; | |
3688 | } | |
3689 | ||
3690 | static __be16 rocker_port_internal_vlan_id_get(struct rocker_port *rocker_port, | |
3691 | int ifindex) | |
3692 | { | |
3693 | struct rocker *rocker = rocker_port->rocker; | |
3694 | struct rocker_internal_vlan_tbl_entry *entry; | |
3695 | struct rocker_internal_vlan_tbl_entry *found; | |
3696 | unsigned long lock_flags; | |
3697 | int i; | |
3698 | ||
3699 | entry = kzalloc(sizeof(*entry), GFP_KERNEL); | |
3700 | if (!entry) | |
3701 | return 0; | |
3702 | ||
3703 | entry->ifindex = ifindex; | |
3704 | ||
3705 | spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, lock_flags); | |
3706 | ||
3707 | found = rocker_internal_vlan_tbl_find(rocker, ifindex); | |
3708 | if (found) { | |
3709 | kfree(entry); | |
3710 | goto found; | |
3711 | } | |
3712 | ||
3713 | found = entry; | |
3714 | hash_add(rocker->internal_vlan_tbl, &found->entry, found->ifindex); | |
3715 | ||
3716 | for (i = 0; i < ROCKER_N_INTERNAL_VLANS; i++) { | |
3717 | if (test_and_set_bit(i, rocker->internal_vlan_bitmap)) | |
3718 | continue; | |
3719 | found->vlan_id = htons(ROCKER_INTERNAL_VLAN_ID_BASE + i); | |
3720 | goto found; | |
3721 | } | |
3722 | ||
3723 | netdev_err(rocker_port->dev, "Out of internal VLAN IDs\n"); | |
3724 | ||
3725 | found: | |
3726 | found->ref_count++; | |
3727 | spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, lock_flags); | |
3728 | ||
3729 | return found->vlan_id; | |
3730 | } | |
3731 | ||
3732 | static void rocker_port_internal_vlan_id_put(struct rocker_port *rocker_port, | |
3733 | int ifindex) | |
3734 | { | |
3735 | struct rocker *rocker = rocker_port->rocker; | |
3736 | struct rocker_internal_vlan_tbl_entry *found; | |
3737 | unsigned long lock_flags; | |
3738 | unsigned long bit; | |
3739 | ||
3740 | spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, lock_flags); | |
3741 | ||
3742 | found = rocker_internal_vlan_tbl_find(rocker, ifindex); | |
3743 | if (!found) { | |
3744 | netdev_err(rocker_port->dev, | |
3745 | "ifindex (%d) not found in internal VLAN tbl\n", | |
3746 | ifindex); | |
3747 | goto not_found; | |
3748 | } | |
3749 | ||
3750 | if (--found->ref_count <= 0) { | |
3751 | bit = ntohs(found->vlan_id) - ROCKER_INTERNAL_VLAN_ID_BASE; | |
3752 | clear_bit(bit, rocker->internal_vlan_bitmap); | |
3753 | hash_del(&found->entry); | |
3754 | kfree(found); | |
3755 | } | |
3756 | ||
3757 | not_found: | |
3758 | spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, lock_flags); | |
3759 | } | |
3760 | ||
c1beeef7 SF |
3761 | static int rocker_port_fib_ipv4(struct rocker_port *rocker_port, __be32 dst, |
3762 | int dst_len, struct fib_info *fi, u32 tb_id, | |
3763 | int flags) | |
3764 | { | |
3765 | struct fib_nh *nh; | |
3766 | __be16 eth_type = htons(ETH_P_IP); | |
3767 | __be32 dst_mask = inet_make_mask(dst_len); | |
3768 | __be16 internal_vlan_id = rocker_port->internal_vlan_id; | |
3769 | u32 priority = fi->fib_priority; | |
3770 | enum rocker_of_dpa_table_id goto_tbl = | |
3771 | ROCKER_OF_DPA_TABLE_ID_ACL_POLICY; | |
3772 | u32 group_id; | |
3773 | bool nh_on_port; | |
3774 | bool has_gw; | |
3775 | u32 index; | |
3776 | int err; | |
3777 | ||
3778 | /* XXX support ECMP */ | |
3779 | ||
3780 | nh = fi->fib_nh; | |
3781 | nh_on_port = (fi->fib_dev == rocker_port->dev); | |
3782 | has_gw = !!nh->nh_gw; | |
3783 | ||
3784 | if (has_gw && nh_on_port) { | |
3785 | err = rocker_port_ipv4_nh(rocker_port, flags, | |
3786 | nh->nh_gw, &index); | |
3787 | if (err) | |
3788 | return err; | |
3789 | ||
3790 | group_id = ROCKER_GROUP_L3_UNICAST(index); | |
3791 | } else { | |
3792 | /* Send to CPU for processing */ | |
3793 | group_id = ROCKER_GROUP_L2_INTERFACE(internal_vlan_id, 0); | |
3794 | } | |
3795 | ||
3796 | err = rocker_flow_tbl_ucast4_routing(rocker_port, eth_type, dst, | |
3797 | dst_mask, priority, goto_tbl, | |
3798 | group_id, flags); | |
3799 | if (err) | |
3800 | netdev_err(rocker_port->dev, "Error (%d) IPv4 route %pI4\n", | |
3801 | err, &dst); | |
3802 | ||
3803 | return err; | |
3804 | } | |
3805 | ||
4b8ac966 JP |
3806 | /***************** |
3807 | * Net device ops | |
3808 | *****************/ | |
3809 | ||
3810 | static int rocker_port_open(struct net_device *dev) | |
3811 | { | |
3812 | struct rocker_port *rocker_port = netdev_priv(dev); | |
3813 | int err; | |
3814 | ||
3815 | err = rocker_port_dma_rings_init(rocker_port); | |
3816 | if (err) | |
3817 | return err; | |
3818 | ||
3819 | err = request_irq(rocker_msix_tx_vector(rocker_port), | |
3820 | rocker_tx_irq_handler, 0, | |
3821 | rocker_driver_name, rocker_port); | |
3822 | if (err) { | |
3823 | netdev_err(rocker_port->dev, "cannot assign tx irq\n"); | |
3824 | goto err_request_tx_irq; | |
3825 | } | |
3826 | ||
3827 | err = request_irq(rocker_msix_rx_vector(rocker_port), | |
3828 | rocker_rx_irq_handler, 0, | |
3829 | rocker_driver_name, rocker_port); | |
3830 | if (err) { | |
3831 | netdev_err(rocker_port->dev, "cannot assign rx irq\n"); | |
3832 | goto err_request_rx_irq; | |
3833 | } | |
3834 | ||
e47172ab | 3835 | err = rocker_port_fwd_enable(rocker_port); |
6c707945 | 3836 | if (err) |
e47172ab | 3837 | goto err_fwd_enable; |
6c707945 | 3838 | |
4b8ac966 JP |
3839 | napi_enable(&rocker_port->napi_tx); |
3840 | napi_enable(&rocker_port->napi_rx); | |
3841 | rocker_port_set_enable(rocker_port, true); | |
3842 | netif_start_queue(dev); | |
3843 | return 0; | |
3844 | ||
e47172ab | 3845 | err_fwd_enable: |
6c707945 | 3846 | free_irq(rocker_msix_rx_vector(rocker_port), rocker_port); |
4b8ac966 JP |
3847 | err_request_rx_irq: |
3848 | free_irq(rocker_msix_tx_vector(rocker_port), rocker_port); | |
3849 | err_request_tx_irq: | |
3850 | rocker_port_dma_rings_fini(rocker_port); | |
3851 | return err; | |
3852 | } | |
3853 | ||
3854 | static int rocker_port_stop(struct net_device *dev) | |
3855 | { | |
3856 | struct rocker_port *rocker_port = netdev_priv(dev); | |
3857 | ||
3858 | netif_stop_queue(dev); | |
3859 | rocker_port_set_enable(rocker_port, false); | |
3860 | napi_disable(&rocker_port->napi_rx); | |
3861 | napi_disable(&rocker_port->napi_tx); | |
e47172ab | 3862 | rocker_port_fwd_disable(rocker_port); |
4b8ac966 JP |
3863 | free_irq(rocker_msix_rx_vector(rocker_port), rocker_port); |
3864 | free_irq(rocker_msix_tx_vector(rocker_port), rocker_port); | |
3865 | rocker_port_dma_rings_fini(rocker_port); | |
3866 | ||
3867 | return 0; | |
3868 | } | |
3869 | ||
3870 | static void rocker_tx_desc_frags_unmap(struct rocker_port *rocker_port, | |
3871 | struct rocker_desc_info *desc_info) | |
3872 | { | |
3873 | struct rocker *rocker = rocker_port->rocker; | |
3874 | struct pci_dev *pdev = rocker->pdev; | |
3875 | struct rocker_tlv *attrs[ROCKER_TLV_TX_MAX + 1]; | |
3876 | struct rocker_tlv *attr; | |
3877 | int rem; | |
3878 | ||
3879 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_TX_MAX, desc_info); | |
3880 | if (!attrs[ROCKER_TLV_TX_FRAGS]) | |
3881 | return; | |
3882 | rocker_tlv_for_each_nested(attr, attrs[ROCKER_TLV_TX_FRAGS], rem) { | |
3883 | struct rocker_tlv *frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_MAX + 1]; | |
3884 | dma_addr_t dma_handle; | |
3885 | size_t len; | |
3886 | ||
3887 | if (rocker_tlv_type(attr) != ROCKER_TLV_TX_FRAG) | |
3888 | continue; | |
3889 | rocker_tlv_parse_nested(frag_attrs, ROCKER_TLV_TX_FRAG_ATTR_MAX, | |
3890 | attr); | |
3891 | if (!frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_ADDR] || | |
3892 | !frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_LEN]) | |
3893 | continue; | |
3894 | dma_handle = rocker_tlv_get_u64(frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_ADDR]); | |
3895 | len = rocker_tlv_get_u16(frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_LEN]); | |
3896 | pci_unmap_single(pdev, dma_handle, len, DMA_TO_DEVICE); | |
3897 | } | |
3898 | } | |
3899 | ||
3900 | static int rocker_tx_desc_frag_map_put(struct rocker_port *rocker_port, | |
3901 | struct rocker_desc_info *desc_info, | |
3902 | char *buf, size_t buf_len) | |
3903 | { | |
3904 | struct rocker *rocker = rocker_port->rocker; | |
3905 | struct pci_dev *pdev = rocker->pdev; | |
3906 | dma_addr_t dma_handle; | |
3907 | struct rocker_tlv *frag; | |
3908 | ||
3909 | dma_handle = pci_map_single(pdev, buf, buf_len, DMA_TO_DEVICE); | |
3910 | if (unlikely(pci_dma_mapping_error(pdev, dma_handle))) { | |
3911 | if (net_ratelimit()) | |
3912 | netdev_err(rocker_port->dev, "failed to dma map tx frag\n"); | |
3913 | return -EIO; | |
3914 | } | |
3915 | frag = rocker_tlv_nest_start(desc_info, ROCKER_TLV_TX_FRAG); | |
3916 | if (!frag) | |
3917 | goto unmap_frag; | |
3918 | if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_TX_FRAG_ATTR_ADDR, | |
3919 | dma_handle)) | |
3920 | goto nest_cancel; | |
3921 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_TX_FRAG_ATTR_LEN, | |
3922 | buf_len)) | |
3923 | goto nest_cancel; | |
3924 | rocker_tlv_nest_end(desc_info, frag); | |
3925 | return 0; | |
3926 | ||
3927 | nest_cancel: | |
3928 | rocker_tlv_nest_cancel(desc_info, frag); | |
3929 | unmap_frag: | |
3930 | pci_unmap_single(pdev, dma_handle, buf_len, DMA_TO_DEVICE); | |
3931 | return -EMSGSIZE; | |
3932 | } | |
3933 | ||
3934 | static netdev_tx_t rocker_port_xmit(struct sk_buff *skb, struct net_device *dev) | |
3935 | { | |
3936 | struct rocker_port *rocker_port = netdev_priv(dev); | |
3937 | struct rocker *rocker = rocker_port->rocker; | |
3938 | struct rocker_desc_info *desc_info; | |
3939 | struct rocker_tlv *frags; | |
3940 | int i; | |
3941 | int err; | |
3942 | ||
3943 | desc_info = rocker_desc_head_get(&rocker_port->tx_ring); | |
3944 | if (unlikely(!desc_info)) { | |
3945 | if (net_ratelimit()) | |
3946 | netdev_err(dev, "tx ring full when queue awake\n"); | |
3947 | return NETDEV_TX_BUSY; | |
3948 | } | |
3949 | ||
3950 | rocker_desc_cookie_ptr_set(desc_info, skb); | |
3951 | ||
3952 | frags = rocker_tlv_nest_start(desc_info, ROCKER_TLV_TX_FRAGS); | |
3953 | if (!frags) | |
3954 | goto out; | |
3955 | err = rocker_tx_desc_frag_map_put(rocker_port, desc_info, | |
3956 | skb->data, skb_headlen(skb)); | |
3957 | if (err) | |
3958 | goto nest_cancel; | |
3959 | if (skb_shinfo(skb)->nr_frags > ROCKER_TX_FRAGS_MAX) | |
3960 | goto nest_cancel; | |
3961 | ||
3962 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { | |
3963 | const skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
3964 | ||
3965 | err = rocker_tx_desc_frag_map_put(rocker_port, desc_info, | |
3966 | skb_frag_address(frag), | |
3967 | skb_frag_size(frag)); | |
3968 | if (err) | |
3969 | goto unmap_frags; | |
3970 | } | |
3971 | rocker_tlv_nest_end(desc_info, frags); | |
3972 | ||
3973 | rocker_desc_gen_clear(desc_info); | |
3974 | rocker_desc_head_set(rocker, &rocker_port->tx_ring, desc_info); | |
3975 | ||
3976 | desc_info = rocker_desc_head_get(&rocker_port->tx_ring); | |
3977 | if (!desc_info) | |
3978 | netif_stop_queue(dev); | |
3979 | ||
3980 | return NETDEV_TX_OK; | |
3981 | ||
3982 | unmap_frags: | |
3983 | rocker_tx_desc_frags_unmap(rocker_port, desc_info); | |
3984 | nest_cancel: | |
3985 | rocker_tlv_nest_cancel(desc_info, frags); | |
3986 | out: | |
3987 | dev_kfree_skb(skb); | |
f2bbca51 DA |
3988 | dev->stats.tx_dropped++; |
3989 | ||
4b8ac966 JP |
3990 | return NETDEV_TX_OK; |
3991 | } | |
3992 | ||
3993 | static int rocker_port_set_mac_address(struct net_device *dev, void *p) | |
3994 | { | |
3995 | struct sockaddr *addr = p; | |
3996 | struct rocker_port *rocker_port = netdev_priv(dev); | |
3997 | int err; | |
3998 | ||
3999 | if (!is_valid_ether_addr(addr->sa_data)) | |
4000 | return -EADDRNOTAVAIL; | |
4001 | ||
4002 | err = rocker_cmd_set_port_settings_macaddr(rocker_port, addr->sa_data); | |
4003 | if (err) | |
4004 | return err; | |
4005 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); | |
4006 | return 0; | |
4007 | } | |
4008 | ||
6c707945 SF |
4009 | static int rocker_port_vlan_rx_add_vid(struct net_device *dev, |
4010 | __be16 proto, u16 vid) | |
4011 | { | |
4012 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4013 | int err; | |
4014 | ||
4015 | err = rocker_port_vlan(rocker_port, 0, vid); | |
4016 | if (err) | |
4017 | return err; | |
4018 | ||
4019 | return rocker_port_router_mac(rocker_port, 0, htons(vid)); | |
4020 | } | |
4021 | ||
4022 | static int rocker_port_vlan_rx_kill_vid(struct net_device *dev, | |
4023 | __be16 proto, u16 vid) | |
4024 | { | |
4025 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4026 | int err; | |
4027 | ||
4028 | err = rocker_port_router_mac(rocker_port, ROCKER_OP_FLAG_REMOVE, | |
4029 | htons(vid)); | |
4030 | if (err) | |
4031 | return err; | |
4032 | ||
4033 | return rocker_port_vlan(rocker_port, ROCKER_OP_FLAG_REMOVE, vid); | |
4034 | } | |
4035 | ||
4036 | static int rocker_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], | |
4037 | struct net_device *dev, | |
4038 | const unsigned char *addr, u16 vid, | |
4039 | u16 nlm_flags) | |
4040 | { | |
4041 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4042 | __be16 vlan_id = rocker_port_vid_to_vlan(rocker_port, vid, NULL); | |
4043 | int flags = 0; | |
4044 | ||
4045 | if (!rocker_port_is_bridged(rocker_port)) | |
4046 | return -EINVAL; | |
4047 | ||
4048 | return rocker_port_fdb(rocker_port, addr, vlan_id, flags); | |
4049 | } | |
4050 | ||
4051 | static int rocker_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[], | |
4052 | struct net_device *dev, | |
4053 | const unsigned char *addr, u16 vid) | |
4054 | { | |
4055 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4056 | __be16 vlan_id = rocker_port_vid_to_vlan(rocker_port, vid, NULL); | |
4057 | int flags = ROCKER_OP_FLAG_REMOVE; | |
4058 | ||
4059 | if (!rocker_port_is_bridged(rocker_port)) | |
4060 | return -EINVAL; | |
4061 | ||
4062 | return rocker_port_fdb(rocker_port, addr, vlan_id, flags); | |
4063 | } | |
4064 | ||
ce76ca68 JP |
4065 | static int rocker_fdb_fill_info(struct sk_buff *skb, |
4066 | struct rocker_port *rocker_port, | |
4067 | const unsigned char *addr, u16 vid, | |
4068 | u32 portid, u32 seq, int type, | |
4069 | unsigned int flags) | |
4070 | { | |
4071 | struct nlmsghdr *nlh; | |
4072 | struct ndmsg *ndm; | |
4073 | ||
4074 | nlh = nlmsg_put(skb, portid, seq, type, sizeof(*ndm), flags); | |
4075 | if (!nlh) | |
4076 | return -EMSGSIZE; | |
4077 | ||
4078 | ndm = nlmsg_data(nlh); | |
4079 | ndm->ndm_family = AF_BRIDGE; | |
4080 | ndm->ndm_pad1 = 0; | |
4081 | ndm->ndm_pad2 = 0; | |
4082 | ndm->ndm_flags = NTF_SELF; | |
4083 | ndm->ndm_type = 0; | |
4084 | ndm->ndm_ifindex = rocker_port->dev->ifindex; | |
4085 | ndm->ndm_state = NUD_REACHABLE; | |
4086 | ||
4087 | if (nla_put(skb, NDA_LLADDR, ETH_ALEN, addr)) | |
4088 | goto nla_put_failure; | |
4089 | ||
4090 | if (vid && nla_put_u16(skb, NDA_VLAN, vid)) | |
4091 | goto nla_put_failure; | |
4092 | ||
053c095a JB |
4093 | nlmsg_end(skb, nlh); |
4094 | return 0; | |
ce76ca68 JP |
4095 | |
4096 | nla_put_failure: | |
4097 | nlmsg_cancel(skb, nlh); | |
4098 | return -EMSGSIZE; | |
4099 | } | |
4100 | ||
4101 | static int rocker_port_fdb_dump(struct sk_buff *skb, | |
4102 | struct netlink_callback *cb, | |
4103 | struct net_device *dev, | |
4104 | struct net_device *filter_dev, | |
4105 | int idx) | |
4106 | { | |
4107 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4108 | struct rocker *rocker = rocker_port->rocker; | |
4109 | struct rocker_fdb_tbl_entry *found; | |
4110 | struct hlist_node *tmp; | |
4111 | int bkt; | |
4112 | unsigned long lock_flags; | |
4113 | const unsigned char *addr; | |
4114 | u16 vid; | |
4115 | int err; | |
4116 | ||
4117 | spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags); | |
4118 | hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, found, entry) { | |
4a6bb6d3 | 4119 | if (found->key.pport != rocker_port->pport) |
ce76ca68 JP |
4120 | continue; |
4121 | if (idx < cb->args[0]) | |
4122 | goto skip; | |
4123 | addr = found->key.addr; | |
4124 | vid = rocker_port_vlan_to_vid(rocker_port, found->key.vlan_id); | |
4125 | err = rocker_fdb_fill_info(skb, rocker_port, addr, vid, | |
4126 | NETLINK_CB(cb->skb).portid, | |
4127 | cb->nlh->nlmsg_seq, | |
4128 | RTM_NEWNEIGH, NLM_F_MULTI); | |
4129 | if (err < 0) | |
4130 | break; | |
4131 | skip: | |
4132 | ++idx; | |
4133 | } | |
4134 | spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags); | |
4135 | return idx; | |
4136 | } | |
4137 | ||
5111f80c | 4138 | static int rocker_port_bridge_setlink(struct net_device *dev, |
add511b3 | 4139 | struct nlmsghdr *nlh, u16 flags) |
5111f80c SF |
4140 | { |
4141 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4142 | struct nlattr *protinfo; | |
5111f80c | 4143 | struct nlattr *attr; |
5111f80c SF |
4144 | int err; |
4145 | ||
4146 | protinfo = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), | |
4147 | IFLA_PROTINFO); | |
5111f80c SF |
4148 | if (protinfo) { |
4149 | attr = nla_find_nested(protinfo, IFLA_BRPORT_LEARNING); | |
4150 | if (attr) { | |
e7560582 TG |
4151 | if (nla_len(attr) < sizeof(u8)) |
4152 | return -EINVAL; | |
4153 | ||
5111f80c SF |
4154 | if (nla_get_u8(attr)) |
4155 | rocker_port->brport_flags |= BR_LEARNING; | |
4156 | else | |
4157 | rocker_port->brport_flags &= ~BR_LEARNING; | |
4158 | err = rocker_port_set_learning(rocker_port); | |
4159 | if (err) | |
4160 | return err; | |
4161 | } | |
4162 | attr = nla_find_nested(protinfo, IFLA_BRPORT_LEARNING_SYNC); | |
4163 | if (attr) { | |
e7560582 TG |
4164 | if (nla_len(attr) < sizeof(u8)) |
4165 | return -EINVAL; | |
4166 | ||
5111f80c SF |
4167 | if (nla_get_u8(attr)) |
4168 | rocker_port->brport_flags |= BR_LEARNING_SYNC; | |
4169 | else | |
4170 | rocker_port->brport_flags &= ~BR_LEARNING_SYNC; | |
4171 | } | |
4172 | } | |
4173 | ||
4174 | return 0; | |
4175 | } | |
4176 | ||
4177 | static int rocker_port_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, | |
4178 | struct net_device *dev, | |
46c264da | 4179 | u32 filter_mask, int nlflags) |
5111f80c SF |
4180 | { |
4181 | struct rocker_port *rocker_port = netdev_priv(dev); | |
1d460b98 | 4182 | u16 mode = BRIDGE_MODE_UNDEF; |
5111f80c SF |
4183 | u32 mask = BR_LEARNING | BR_LEARNING_SYNC; |
4184 | ||
4185 | return ndo_dflt_bridge_getlink(skb, pid, seq, dev, mode, | |
46c264da ND |
4186 | rocker_port->brport_flags, mask, |
4187 | nlflags); | |
5111f80c SF |
4188 | } |
4189 | ||
db19170b DA |
4190 | static int rocker_port_get_phys_port_name(struct net_device *dev, |
4191 | char *buf, size_t len) | |
4192 | { | |
4193 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4194 | struct port_name name = { .buf = buf, .len = len }; | |
4195 | int err; | |
4196 | ||
4197 | err = rocker_cmd_exec(rocker_port->rocker, rocker_port, | |
4198 | rocker_cmd_get_port_settings_prep, NULL, | |
4199 | rocker_cmd_get_port_settings_phys_name_proc, | |
4200 | &name, false); | |
4201 | ||
4202 | return err ? -EOPNOTSUPP : 0; | |
4203 | } | |
4204 | ||
98237d43 SF |
4205 | static const struct net_device_ops rocker_port_netdev_ops = { |
4206 | .ndo_open = rocker_port_open, | |
4207 | .ndo_stop = rocker_port_stop, | |
4208 | .ndo_start_xmit = rocker_port_xmit, | |
4209 | .ndo_set_mac_address = rocker_port_set_mac_address, | |
4210 | .ndo_vlan_rx_add_vid = rocker_port_vlan_rx_add_vid, | |
4211 | .ndo_vlan_rx_kill_vid = rocker_port_vlan_rx_kill_vid, | |
4212 | .ndo_fdb_add = rocker_port_fdb_add, | |
4213 | .ndo_fdb_del = rocker_port_fdb_del, | |
4214 | .ndo_fdb_dump = rocker_port_fdb_dump, | |
4215 | .ndo_bridge_setlink = rocker_port_bridge_setlink, | |
4216 | .ndo_bridge_getlink = rocker_port_bridge_getlink, | |
db19170b | 4217 | .ndo_get_phys_port_name = rocker_port_get_phys_port_name, |
98237d43 SF |
4218 | }; |
4219 | ||
4220 | /******************** | |
4221 | * swdev interface | |
4222 | ********************/ | |
4223 | ||
4224 | static int rocker_port_swdev_parent_id_get(struct net_device *dev, | |
4225 | struct netdev_phys_item_id *psid) | |
4b8ac966 JP |
4226 | { |
4227 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4228 | struct rocker *rocker = rocker_port->rocker; | |
4229 | ||
4230 | psid->id_len = sizeof(rocker->hw.id); | |
4231 | memcpy(&psid->id, &rocker->hw.id, psid->id_len); | |
4232 | return 0; | |
4233 | } | |
4234 | ||
98237d43 | 4235 | static int rocker_port_swdev_port_stp_update(struct net_device *dev, u8 state) |
6c707945 SF |
4236 | { |
4237 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4238 | ||
4239 | return rocker_port_stp_update(rocker_port, state); | |
4240 | } | |
4241 | ||
98237d43 SF |
4242 | static int rocker_port_swdev_fib_ipv4_add(struct net_device *dev, |
4243 | __be32 dst, int dst_len, | |
4244 | struct fib_info *fi, | |
4245 | u8 tos, u8 type, | |
4246 | u32 nlflags, u32 tb_id) | |
c1beeef7 SF |
4247 | { |
4248 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4249 | int flags = 0; | |
4250 | ||
4251 | return rocker_port_fib_ipv4(rocker_port, dst, dst_len, | |
4252 | fi, tb_id, flags); | |
4253 | } | |
4254 | ||
98237d43 SF |
4255 | static int rocker_port_swdev_fib_ipv4_del(struct net_device *dev, |
4256 | __be32 dst, int dst_len, | |
4257 | struct fib_info *fi, | |
4258 | u8 tos, u8 type, u32 tb_id) | |
c1beeef7 SF |
4259 | { |
4260 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4261 | int flags = ROCKER_OP_FLAG_REMOVE; | |
4262 | ||
4263 | return rocker_port_fib_ipv4(rocker_port, dst, dst_len, | |
4264 | fi, tb_id, flags); | |
4265 | } | |
4266 | ||
98237d43 SF |
4267 | static const struct swdev_ops rocker_port_swdev_ops = { |
4268 | .swdev_parent_id_get = rocker_port_swdev_parent_id_get, | |
4269 | .swdev_port_stp_update = rocker_port_swdev_port_stp_update, | |
4270 | .swdev_fib_ipv4_add = rocker_port_swdev_fib_ipv4_add, | |
4271 | .swdev_fib_ipv4_del = rocker_port_swdev_fib_ipv4_del, | |
4b8ac966 JP |
4272 | }; |
4273 | ||
4274 | /******************** | |
4275 | * ethtool interface | |
4276 | ********************/ | |
4277 | ||
4278 | static int rocker_port_get_settings(struct net_device *dev, | |
4279 | struct ethtool_cmd *ecmd) | |
4280 | { | |
4281 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4282 | ||
4283 | return rocker_cmd_get_port_settings_ethtool(rocker_port, ecmd); | |
4284 | } | |
4285 | ||
4286 | static int rocker_port_set_settings(struct net_device *dev, | |
4287 | struct ethtool_cmd *ecmd) | |
4288 | { | |
4289 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4290 | ||
4291 | return rocker_cmd_set_port_settings_ethtool(rocker_port, ecmd); | |
4292 | } | |
4293 | ||
4294 | static void rocker_port_get_drvinfo(struct net_device *dev, | |
4295 | struct ethtool_drvinfo *drvinfo) | |
4296 | { | |
4297 | strlcpy(drvinfo->driver, rocker_driver_name, sizeof(drvinfo->driver)); | |
4298 | strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version)); | |
4299 | } | |
4300 | ||
9766e97a DA |
4301 | static struct rocker_port_stats { |
4302 | char str[ETH_GSTRING_LEN]; | |
4303 | int type; | |
4304 | } rocker_port_stats[] = { | |
4305 | { "rx_packets", ROCKER_TLV_CMD_PORT_STATS_RX_PKTS, }, | |
4306 | { "rx_bytes", ROCKER_TLV_CMD_PORT_STATS_RX_BYTES, }, | |
4307 | { "rx_dropped", ROCKER_TLV_CMD_PORT_STATS_RX_DROPPED, }, | |
4308 | { "rx_errors", ROCKER_TLV_CMD_PORT_STATS_RX_ERRORS, }, | |
4309 | ||
4310 | { "tx_packets", ROCKER_TLV_CMD_PORT_STATS_TX_PKTS, }, | |
4311 | { "tx_bytes", ROCKER_TLV_CMD_PORT_STATS_TX_BYTES, }, | |
4312 | { "tx_dropped", ROCKER_TLV_CMD_PORT_STATS_TX_DROPPED, }, | |
4313 | { "tx_errors", ROCKER_TLV_CMD_PORT_STATS_TX_ERRORS, }, | |
4314 | }; | |
4315 | ||
4316 | #define ROCKER_PORT_STATS_LEN ARRAY_SIZE(rocker_port_stats) | |
4317 | ||
4318 | static void rocker_port_get_strings(struct net_device *netdev, u32 stringset, | |
4319 | u8 *data) | |
4320 | { | |
4321 | u8 *p = data; | |
4322 | int i; | |
4323 | ||
4324 | switch (stringset) { | |
4325 | case ETH_SS_STATS: | |
4326 | for (i = 0; i < ARRAY_SIZE(rocker_port_stats); i++) { | |
4327 | memcpy(p, rocker_port_stats[i].str, ETH_GSTRING_LEN); | |
4328 | p += ETH_GSTRING_LEN; | |
4329 | } | |
4330 | break; | |
4331 | } | |
4332 | } | |
4333 | ||
4334 | static int | |
4335 | rocker_cmd_get_port_stats_prep(struct rocker *rocker, | |
4336 | struct rocker_port *rocker_port, | |
4337 | struct rocker_desc_info *desc_info, | |
4338 | void *priv) | |
4339 | { | |
4340 | struct rocker_tlv *cmd_stats; | |
4341 | ||
4342 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, | |
4343 | ROCKER_TLV_CMD_TYPE_GET_PORT_STATS)) | |
4344 | return -EMSGSIZE; | |
4345 | ||
4346 | cmd_stats = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); | |
4347 | if (!cmd_stats) | |
4348 | return -EMSGSIZE; | |
4349 | ||
4a6bb6d3 SF |
4350 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_STATS_PPORT, |
4351 | rocker_port->pport)) | |
9766e97a DA |
4352 | return -EMSGSIZE; |
4353 | ||
4354 | rocker_tlv_nest_end(desc_info, cmd_stats); | |
4355 | ||
4356 | return 0; | |
4357 | } | |
4358 | ||
4359 | static int | |
4360 | rocker_cmd_get_port_stats_ethtool_proc(struct rocker *rocker, | |
4361 | struct rocker_port *rocker_port, | |
4362 | struct rocker_desc_info *desc_info, | |
4363 | void *priv) | |
4364 | { | |
4365 | struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1]; | |
4366 | struct rocker_tlv *stats_attrs[ROCKER_TLV_CMD_PORT_STATS_MAX + 1]; | |
4367 | struct rocker_tlv *pattr; | |
4a6bb6d3 | 4368 | u32 pport; |
9766e97a DA |
4369 | u64 *data = priv; |
4370 | int i; | |
4371 | ||
4372 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info); | |
4373 | ||
4374 | if (!attrs[ROCKER_TLV_CMD_INFO]) | |
4375 | return -EIO; | |
4376 | ||
4377 | rocker_tlv_parse_nested(stats_attrs, ROCKER_TLV_CMD_PORT_STATS_MAX, | |
4378 | attrs[ROCKER_TLV_CMD_INFO]); | |
4379 | ||
4a6bb6d3 | 4380 | if (!stats_attrs[ROCKER_TLV_CMD_PORT_STATS_PPORT]) |
9766e97a DA |
4381 | return -EIO; |
4382 | ||
4a6bb6d3 SF |
4383 | pport = rocker_tlv_get_u32(stats_attrs[ROCKER_TLV_CMD_PORT_STATS_PPORT]); |
4384 | if (pport != rocker_port->pport) | |
9766e97a DA |
4385 | return -EIO; |
4386 | ||
4387 | for (i = 0; i < ARRAY_SIZE(rocker_port_stats); i++) { | |
4388 | pattr = stats_attrs[rocker_port_stats[i].type]; | |
4389 | if (!pattr) | |
4390 | continue; | |
4391 | ||
4392 | data[i] = rocker_tlv_get_u64(pattr); | |
4393 | } | |
4394 | ||
4395 | return 0; | |
4396 | } | |
4397 | ||
4398 | static int rocker_cmd_get_port_stats_ethtool(struct rocker_port *rocker_port, | |
4399 | void *priv) | |
4400 | { | |
4401 | return rocker_cmd_exec(rocker_port->rocker, rocker_port, | |
4402 | rocker_cmd_get_port_stats_prep, NULL, | |
4403 | rocker_cmd_get_port_stats_ethtool_proc, | |
4404 | priv, false); | |
4405 | } | |
4406 | ||
4407 | static void rocker_port_get_stats(struct net_device *dev, | |
4408 | struct ethtool_stats *stats, u64 *data) | |
4409 | { | |
4410 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4411 | ||
4412 | if (rocker_cmd_get_port_stats_ethtool(rocker_port, data) != 0) { | |
4413 | int i; | |
4414 | ||
4415 | for (i = 0; i < ARRAY_SIZE(rocker_port_stats); ++i) | |
4416 | data[i] = 0; | |
4417 | } | |
4418 | ||
4419 | return; | |
4420 | } | |
4421 | ||
4422 | static int rocker_port_get_sset_count(struct net_device *netdev, int sset) | |
4423 | { | |
4424 | switch (sset) { | |
4425 | case ETH_SS_STATS: | |
4426 | return ROCKER_PORT_STATS_LEN; | |
4427 | default: | |
4428 | return -EOPNOTSUPP; | |
4429 | } | |
4430 | } | |
4431 | ||
4b8ac966 JP |
4432 | static const struct ethtool_ops rocker_port_ethtool_ops = { |
4433 | .get_settings = rocker_port_get_settings, | |
4434 | .set_settings = rocker_port_set_settings, | |
4435 | .get_drvinfo = rocker_port_get_drvinfo, | |
4436 | .get_link = ethtool_op_get_link, | |
9766e97a DA |
4437 | .get_strings = rocker_port_get_strings, |
4438 | .get_ethtool_stats = rocker_port_get_stats, | |
4439 | .get_sset_count = rocker_port_get_sset_count, | |
4b8ac966 JP |
4440 | }; |
4441 | ||
4442 | /***************** | |
4443 | * NAPI interface | |
4444 | *****************/ | |
4445 | ||
4446 | static struct rocker_port *rocker_port_napi_tx_get(struct napi_struct *napi) | |
4447 | { | |
4448 | return container_of(napi, struct rocker_port, napi_tx); | |
4449 | } | |
4450 | ||
4451 | static int rocker_port_poll_tx(struct napi_struct *napi, int budget) | |
4452 | { | |
4453 | struct rocker_port *rocker_port = rocker_port_napi_tx_get(napi); | |
4454 | struct rocker *rocker = rocker_port->rocker; | |
4455 | struct rocker_desc_info *desc_info; | |
4456 | u32 credits = 0; | |
4457 | int err; | |
4458 | ||
4459 | /* Cleanup tx descriptors */ | |
4460 | while ((desc_info = rocker_desc_tail_get(&rocker_port->tx_ring))) { | |
f2bbca51 DA |
4461 | struct sk_buff *skb; |
4462 | ||
4b8ac966 JP |
4463 | err = rocker_desc_err(desc_info); |
4464 | if (err && net_ratelimit()) | |
4465 | netdev_err(rocker_port->dev, "tx desc received with err %d\n", | |
4466 | err); | |
4467 | rocker_tx_desc_frags_unmap(rocker_port, desc_info); | |
f2bbca51 DA |
4468 | |
4469 | skb = rocker_desc_cookie_ptr_get(desc_info); | |
4470 | if (err == 0) { | |
4471 | rocker_port->dev->stats.tx_packets++; | |
4472 | rocker_port->dev->stats.tx_bytes += skb->len; | |
4473 | } else | |
4474 | rocker_port->dev->stats.tx_errors++; | |
4475 | ||
4476 | dev_kfree_skb_any(skb); | |
4b8ac966 JP |
4477 | credits++; |
4478 | } | |
4479 | ||
4480 | if (credits && netif_queue_stopped(rocker_port->dev)) | |
4481 | netif_wake_queue(rocker_port->dev); | |
4482 | ||
4483 | napi_complete(napi); | |
4484 | rocker_dma_ring_credits_set(rocker, &rocker_port->tx_ring, credits); | |
4485 | ||
4486 | return 0; | |
4487 | } | |
4488 | ||
4489 | static int rocker_port_rx_proc(struct rocker *rocker, | |
4490 | struct rocker_port *rocker_port, | |
4491 | struct rocker_desc_info *desc_info) | |
4492 | { | |
4493 | struct rocker_tlv *attrs[ROCKER_TLV_RX_MAX + 1]; | |
4494 | struct sk_buff *skb = rocker_desc_cookie_ptr_get(desc_info); | |
4495 | size_t rx_len; | |
4496 | ||
4497 | if (!skb) | |
4498 | return -ENOENT; | |
4499 | ||
4500 | rocker_tlv_parse_desc(attrs, ROCKER_TLV_RX_MAX, desc_info); | |
4501 | if (!attrs[ROCKER_TLV_RX_FRAG_LEN]) | |
4502 | return -EINVAL; | |
4503 | ||
4504 | rocker_dma_rx_ring_skb_unmap(rocker, attrs); | |
4505 | ||
4506 | rx_len = rocker_tlv_get_u16(attrs[ROCKER_TLV_RX_FRAG_LEN]); | |
4507 | skb_put(skb, rx_len); | |
4508 | skb->protocol = eth_type_trans(skb, rocker_port->dev); | |
f2bbca51 DA |
4509 | |
4510 | rocker_port->dev->stats.rx_packets++; | |
4511 | rocker_port->dev->stats.rx_bytes += skb->len; | |
4512 | ||
4b8ac966 JP |
4513 | netif_receive_skb(skb); |
4514 | ||
4515 | return rocker_dma_rx_ring_skb_alloc(rocker, rocker_port, desc_info); | |
4516 | } | |
4517 | ||
4518 | static struct rocker_port *rocker_port_napi_rx_get(struct napi_struct *napi) | |
4519 | { | |
4520 | return container_of(napi, struct rocker_port, napi_rx); | |
4521 | } | |
4522 | ||
4523 | static int rocker_port_poll_rx(struct napi_struct *napi, int budget) | |
4524 | { | |
4525 | struct rocker_port *rocker_port = rocker_port_napi_rx_get(napi); | |
4526 | struct rocker *rocker = rocker_port->rocker; | |
4527 | struct rocker_desc_info *desc_info; | |
4528 | u32 credits = 0; | |
4529 | int err; | |
4530 | ||
4531 | /* Process rx descriptors */ | |
4532 | while (credits < budget && | |
4533 | (desc_info = rocker_desc_tail_get(&rocker_port->rx_ring))) { | |
4534 | err = rocker_desc_err(desc_info); | |
4535 | if (err) { | |
4536 | if (net_ratelimit()) | |
4537 | netdev_err(rocker_port->dev, "rx desc received with err %d\n", | |
4538 | err); | |
4539 | } else { | |
4540 | err = rocker_port_rx_proc(rocker, rocker_port, | |
4541 | desc_info); | |
4542 | if (err && net_ratelimit()) | |
4543 | netdev_err(rocker_port->dev, "rx processing failed with err %d\n", | |
4544 | err); | |
4545 | } | |
f2bbca51 DA |
4546 | if (err) |
4547 | rocker_port->dev->stats.rx_errors++; | |
4548 | ||
4b8ac966 JP |
4549 | rocker_desc_gen_clear(desc_info); |
4550 | rocker_desc_head_set(rocker, &rocker_port->rx_ring, desc_info); | |
4551 | credits++; | |
4552 | } | |
4553 | ||
4554 | if (credits < budget) | |
4555 | napi_complete(napi); | |
4556 | ||
4557 | rocker_dma_ring_credits_set(rocker, &rocker_port->rx_ring, credits); | |
4558 | ||
4559 | return credits; | |
4560 | } | |
4561 | ||
4562 | /***************** | |
4563 | * PCI driver ops | |
4564 | *****************/ | |
4565 | ||
4566 | static void rocker_carrier_init(struct rocker_port *rocker_port) | |
4567 | { | |
4568 | struct rocker *rocker = rocker_port->rocker; | |
4569 | u64 link_status = rocker_read64(rocker, PORT_PHYS_LINK_STATUS); | |
4570 | bool link_up; | |
4571 | ||
4a6bb6d3 | 4572 | link_up = link_status & (1 << rocker_port->pport); |
4b8ac966 JP |
4573 | if (link_up) |
4574 | netif_carrier_on(rocker_port->dev); | |
4575 | else | |
4576 | netif_carrier_off(rocker_port->dev); | |
4577 | } | |
4578 | ||
4579 | static void rocker_remove_ports(struct rocker *rocker) | |
4580 | { | |
9f6bbf7c | 4581 | struct rocker_port *rocker_port; |
4b8ac966 JP |
4582 | int i; |
4583 | ||
9f6bbf7c SF |
4584 | for (i = 0; i < rocker->port_count; i++) { |
4585 | rocker_port = rocker->ports[i]; | |
4586 | rocker_port_ig_tbl(rocker_port, ROCKER_OP_FLAG_REMOVE); | |
4587 | unregister_netdev(rocker_port->dev); | |
4588 | } | |
4b8ac966 JP |
4589 | kfree(rocker->ports); |
4590 | } | |
4591 | ||
4592 | static void rocker_port_dev_addr_init(struct rocker *rocker, | |
4593 | struct rocker_port *rocker_port) | |
4594 | { | |
4595 | struct pci_dev *pdev = rocker->pdev; | |
4596 | int err; | |
4597 | ||
4598 | err = rocker_cmd_get_port_settings_macaddr(rocker_port, | |
4599 | rocker_port->dev->dev_addr); | |
4600 | if (err) { | |
4601 | dev_warn(&pdev->dev, "failed to get mac address, using random\n"); | |
4602 | eth_hw_addr_random(rocker_port->dev); | |
4603 | } | |
4604 | } | |
4605 | ||
4606 | static int rocker_probe_port(struct rocker *rocker, unsigned int port_number) | |
4607 | { | |
4608 | struct pci_dev *pdev = rocker->pdev; | |
4609 | struct rocker_port *rocker_port; | |
4610 | struct net_device *dev; | |
4611 | int err; | |
4612 | ||
4613 | dev = alloc_etherdev(sizeof(struct rocker_port)); | |
4614 | if (!dev) | |
4615 | return -ENOMEM; | |
4616 | rocker_port = netdev_priv(dev); | |
4617 | rocker_port->dev = dev; | |
4618 | rocker_port->rocker = rocker; | |
4619 | rocker_port->port_number = port_number; | |
4a6bb6d3 | 4620 | rocker_port->pport = port_number + 1; |
5111f80c | 4621 | rocker_port->brport_flags = BR_LEARNING | BR_LEARNING_SYNC; |
4b8ac966 JP |
4622 | |
4623 | rocker_port_dev_addr_init(rocker, rocker_port); | |
4624 | dev->netdev_ops = &rocker_port_netdev_ops; | |
4625 | dev->ethtool_ops = &rocker_port_ethtool_ops; | |
98237d43 | 4626 | dev->swdev_ops = &rocker_port_swdev_ops; |
4b8ac966 JP |
4627 | netif_napi_add(dev, &rocker_port->napi_tx, rocker_port_poll_tx, |
4628 | NAPI_POLL_WEIGHT); | |
4629 | netif_napi_add(dev, &rocker_port->napi_rx, rocker_port_poll_rx, | |
4630 | NAPI_POLL_WEIGHT); | |
4631 | rocker_carrier_init(rocker_port); | |
4632 | ||
c1beeef7 SF |
4633 | dev->features |= NETIF_F_NETNS_LOCAL | |
4634 | NETIF_F_HW_VLAN_CTAG_FILTER | | |
4635 | NETIF_F_HW_SWITCH_OFFLOAD; | |
4b8ac966 JP |
4636 | |
4637 | err = register_netdev(dev); | |
4638 | if (err) { | |
4639 | dev_err(&pdev->dev, "register_netdev failed\n"); | |
4640 | goto err_register_netdev; | |
4641 | } | |
4642 | rocker->ports[port_number] = rocker_port; | |
4643 | ||
5111f80c SF |
4644 | rocker_port_set_learning(rocker_port); |
4645 | ||
9f6bbf7c SF |
4646 | rocker_port->internal_vlan_id = |
4647 | rocker_port_internal_vlan_id_get(rocker_port, dev->ifindex); | |
4648 | err = rocker_port_ig_tbl(rocker_port, 0); | |
4649 | if (err) { | |
4650 | dev_err(&pdev->dev, "install ig port table failed\n"); | |
4651 | goto err_port_ig_tbl; | |
4652 | } | |
4653 | ||
4b8ac966 JP |
4654 | return 0; |
4655 | ||
9f6bbf7c SF |
4656 | err_port_ig_tbl: |
4657 | unregister_netdev(dev); | |
4b8ac966 JP |
4658 | err_register_netdev: |
4659 | free_netdev(dev); | |
4660 | return err; | |
4661 | } | |
4662 | ||
4663 | static int rocker_probe_ports(struct rocker *rocker) | |
4664 | { | |
4665 | int i; | |
4666 | size_t alloc_size; | |
4667 | int err; | |
4668 | ||
4669 | alloc_size = sizeof(struct rocker_port *) * rocker->port_count; | |
4670 | rocker->ports = kmalloc(alloc_size, GFP_KERNEL); | |
e65ad3be DC |
4671 | if (!rocker->ports) |
4672 | return -ENOMEM; | |
4b8ac966 JP |
4673 | for (i = 0; i < rocker->port_count; i++) { |
4674 | err = rocker_probe_port(rocker, i); | |
4675 | if (err) | |
4676 | goto remove_ports; | |
4677 | } | |
4678 | return 0; | |
4679 | ||
4680 | remove_ports: | |
4681 | rocker_remove_ports(rocker); | |
4682 | return err; | |
4683 | } | |
4684 | ||
4685 | static int rocker_msix_init(struct rocker *rocker) | |
4686 | { | |
4687 | struct pci_dev *pdev = rocker->pdev; | |
4688 | int msix_entries; | |
4689 | int i; | |
4690 | int err; | |
4691 | ||
4692 | msix_entries = pci_msix_vec_count(pdev); | |
4693 | if (msix_entries < 0) | |
4694 | return msix_entries; | |
4695 | ||
4696 | if (msix_entries != ROCKER_MSIX_VEC_COUNT(rocker->port_count)) | |
4697 | return -EINVAL; | |
4698 | ||
4699 | rocker->msix_entries = kmalloc_array(msix_entries, | |
4700 | sizeof(struct msix_entry), | |
4701 | GFP_KERNEL); | |
4702 | if (!rocker->msix_entries) | |
4703 | return -ENOMEM; | |
4704 | ||
4705 | for (i = 0; i < msix_entries; i++) | |
4706 | rocker->msix_entries[i].entry = i; | |
4707 | ||
4708 | err = pci_enable_msix_exact(pdev, rocker->msix_entries, msix_entries); | |
4709 | if (err < 0) | |
4710 | goto err_enable_msix; | |
4711 | ||
4712 | return 0; | |
4713 | ||
4714 | err_enable_msix: | |
4715 | kfree(rocker->msix_entries); | |
4716 | return err; | |
4717 | } | |
4718 | ||
4719 | static void rocker_msix_fini(struct rocker *rocker) | |
4720 | { | |
4721 | pci_disable_msix(rocker->pdev); | |
4722 | kfree(rocker->msix_entries); | |
4723 | } | |
4724 | ||
4725 | static int rocker_probe(struct pci_dev *pdev, const struct pci_device_id *id) | |
4726 | { | |
4727 | struct rocker *rocker; | |
4728 | int err; | |
4729 | ||
4730 | rocker = kzalloc(sizeof(*rocker), GFP_KERNEL); | |
4731 | if (!rocker) | |
4732 | return -ENOMEM; | |
4733 | ||
4734 | err = pci_enable_device(pdev); | |
4735 | if (err) { | |
4736 | dev_err(&pdev->dev, "pci_enable_device failed\n"); | |
4737 | goto err_pci_enable_device; | |
4738 | } | |
4739 | ||
4740 | err = pci_request_regions(pdev, rocker_driver_name); | |
4741 | if (err) { | |
4742 | dev_err(&pdev->dev, "pci_request_regions failed\n"); | |
4743 | goto err_pci_request_regions; | |
4744 | } | |
4745 | ||
4746 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); | |
4747 | if (!err) { | |
4748 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); | |
4749 | if (err) { | |
4750 | dev_err(&pdev->dev, "pci_set_consistent_dma_mask failed\n"); | |
4751 | goto err_pci_set_dma_mask; | |
4752 | } | |
4753 | } else { | |
4754 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); | |
4755 | if (err) { | |
4756 | dev_err(&pdev->dev, "pci_set_dma_mask failed\n"); | |
4757 | goto err_pci_set_dma_mask; | |
4758 | } | |
4759 | } | |
4760 | ||
4761 | if (pci_resource_len(pdev, 0) < ROCKER_PCI_BAR0_SIZE) { | |
4762 | dev_err(&pdev->dev, "invalid PCI region size\n"); | |
3122a92e | 4763 | err = -EINVAL; |
4b8ac966 JP |
4764 | goto err_pci_resource_len_check; |
4765 | } | |
4766 | ||
4767 | rocker->hw_addr = ioremap(pci_resource_start(pdev, 0), | |
4768 | pci_resource_len(pdev, 0)); | |
4769 | if (!rocker->hw_addr) { | |
4770 | dev_err(&pdev->dev, "ioremap failed\n"); | |
4771 | err = -EIO; | |
4772 | goto err_ioremap; | |
4773 | } | |
4774 | pci_set_master(pdev); | |
4775 | ||
4776 | rocker->pdev = pdev; | |
4777 | pci_set_drvdata(pdev, rocker); | |
4778 | ||
4779 | rocker->port_count = rocker_read32(rocker, PORT_PHYS_COUNT); | |
4780 | ||
4781 | err = rocker_msix_init(rocker); | |
4782 | if (err) { | |
4783 | dev_err(&pdev->dev, "MSI-X init failed\n"); | |
4784 | goto err_msix_init; | |
4785 | } | |
4786 | ||
4787 | err = rocker_basic_hw_test(rocker); | |
4788 | if (err) { | |
4789 | dev_err(&pdev->dev, "basic hw test failed\n"); | |
4790 | goto err_basic_hw_test; | |
4791 | } | |
4792 | ||
4793 | rocker_write32(rocker, CONTROL, ROCKER_CONTROL_RESET); | |
4794 | ||
4795 | err = rocker_dma_rings_init(rocker); | |
4796 | if (err) | |
4797 | goto err_dma_rings_init; | |
4798 | ||
4799 | err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), | |
4800 | rocker_cmd_irq_handler, 0, | |
4801 | rocker_driver_name, rocker); | |
4802 | if (err) { | |
4803 | dev_err(&pdev->dev, "cannot assign cmd irq\n"); | |
4804 | goto err_request_cmd_irq; | |
4805 | } | |
4806 | ||
4807 | err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), | |
4808 | rocker_event_irq_handler, 0, | |
4809 | rocker_driver_name, rocker); | |
4810 | if (err) { | |
4811 | dev_err(&pdev->dev, "cannot assign event irq\n"); | |
4812 | goto err_request_event_irq; | |
4813 | } | |
4814 | ||
4815 | rocker->hw.id = rocker_read64(rocker, SWITCH_ID); | |
4816 | ||
9f6bbf7c SF |
4817 | err = rocker_init_tbls(rocker); |
4818 | if (err) { | |
4819 | dev_err(&pdev->dev, "cannot init rocker tables\n"); | |
4820 | goto err_init_tbls; | |
4821 | } | |
4822 | ||
4b8ac966 JP |
4823 | err = rocker_probe_ports(rocker); |
4824 | if (err) { | |
4825 | dev_err(&pdev->dev, "failed to probe ports\n"); | |
4826 | goto err_probe_ports; | |
4827 | } | |
4828 | ||
4829 | dev_info(&pdev->dev, "Rocker switch with id %016llx\n", rocker->hw.id); | |
4830 | ||
4831 | return 0; | |
4832 | ||
4833 | err_probe_ports: | |
9f6bbf7c SF |
4834 | rocker_free_tbls(rocker); |
4835 | err_init_tbls: | |
4b8ac966 JP |
4836 | free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), rocker); |
4837 | err_request_event_irq: | |
4838 | free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), rocker); | |
4839 | err_request_cmd_irq: | |
4840 | rocker_dma_rings_fini(rocker); | |
4841 | err_dma_rings_init: | |
4842 | err_basic_hw_test: | |
4843 | rocker_msix_fini(rocker); | |
4844 | err_msix_init: | |
4845 | iounmap(rocker->hw_addr); | |
4846 | err_ioremap: | |
4847 | err_pci_resource_len_check: | |
4848 | err_pci_set_dma_mask: | |
4849 | pci_release_regions(pdev); | |
4850 | err_pci_request_regions: | |
4851 | pci_disable_device(pdev); | |
4852 | err_pci_enable_device: | |
4853 | kfree(rocker); | |
4854 | return err; | |
4855 | } | |
4856 | ||
4857 | static void rocker_remove(struct pci_dev *pdev) | |
4858 | { | |
4859 | struct rocker *rocker = pci_get_drvdata(pdev); | |
4860 | ||
9f6bbf7c | 4861 | rocker_free_tbls(rocker); |
4b8ac966 JP |
4862 | rocker_write32(rocker, CONTROL, ROCKER_CONTROL_RESET); |
4863 | rocker_remove_ports(rocker); | |
4864 | free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), rocker); | |
4865 | free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), rocker); | |
4866 | rocker_dma_rings_fini(rocker); | |
4867 | rocker_msix_fini(rocker); | |
4868 | iounmap(rocker->hw_addr); | |
4869 | pci_release_regions(rocker->pdev); | |
4870 | pci_disable_device(rocker->pdev); | |
4871 | kfree(rocker); | |
4872 | } | |
4873 | ||
4874 | static struct pci_driver rocker_pci_driver = { | |
4875 | .name = rocker_driver_name, | |
4876 | .id_table = rocker_pci_id_table, | |
4877 | .probe = rocker_probe, | |
4878 | .remove = rocker_remove, | |
4879 | }; | |
4880 | ||
6c707945 SF |
4881 | /************************************ |
4882 | * Net device notifier event handler | |
4883 | ************************************/ | |
4884 | ||
4885 | static bool rocker_port_dev_check(struct net_device *dev) | |
4886 | { | |
4887 | return dev->netdev_ops == &rocker_port_netdev_ops; | |
4888 | } | |
4889 | ||
4890 | static int rocker_port_bridge_join(struct rocker_port *rocker_port, | |
4891 | struct net_device *bridge) | |
4892 | { | |
4893 | int err; | |
4894 | ||
4895 | rocker_port_internal_vlan_id_put(rocker_port, | |
4896 | rocker_port->dev->ifindex); | |
4897 | ||
4898 | rocker_port->bridge_dev = bridge; | |
4899 | ||
4900 | /* Use bridge internal VLAN ID for untagged pkts */ | |
4901 | err = rocker_port_vlan(rocker_port, ROCKER_OP_FLAG_REMOVE, 0); | |
4902 | if (err) | |
4903 | return err; | |
4904 | rocker_port->internal_vlan_id = | |
4905 | rocker_port_internal_vlan_id_get(rocker_port, | |
4906 | bridge->ifindex); | |
e47172ab | 4907 | return rocker_port_vlan(rocker_port, 0, 0); |
6c707945 SF |
4908 | } |
4909 | ||
4910 | static int rocker_port_bridge_leave(struct rocker_port *rocker_port) | |
4911 | { | |
4912 | int err; | |
4913 | ||
4914 | rocker_port_internal_vlan_id_put(rocker_port, | |
4915 | rocker_port->bridge_dev->ifindex); | |
4916 | ||
4917 | rocker_port->bridge_dev = NULL; | |
4918 | ||
4919 | /* Use port internal VLAN ID for untagged pkts */ | |
4920 | err = rocker_port_vlan(rocker_port, ROCKER_OP_FLAG_REMOVE, 0); | |
4921 | if (err) | |
4922 | return err; | |
4923 | rocker_port->internal_vlan_id = | |
4924 | rocker_port_internal_vlan_id_get(rocker_port, | |
4925 | rocker_port->dev->ifindex); | |
4926 | err = rocker_port_vlan(rocker_port, 0, 0); | |
e47172ab SF |
4927 | if (err) |
4928 | return err; | |
4929 | ||
4930 | if (rocker_port->dev->flags & IFF_UP) | |
4931 | err = rocker_port_fwd_enable(rocker_port); | |
6c707945 SF |
4932 | |
4933 | return err; | |
4934 | } | |
4935 | ||
4936 | static int rocker_port_master_changed(struct net_device *dev) | |
4937 | { | |
4938 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4939 | struct net_device *master = netdev_master_upper_dev_get(dev); | |
4940 | int err = 0; | |
4941 | ||
a6e95cc7 SH |
4942 | /* There are currently three cases handled here: |
4943 | * 1. Joining a bridge | |
4944 | * 2. Leaving a previously joined bridge | |
4945 | * 3. Other, e.g. being added to or removed from a bond or openvswitch, | |
4946 | * in which case nothing is done | |
4947 | */ | |
6c707945 SF |
4948 | if (master && master->rtnl_link_ops && |
4949 | !strcmp(master->rtnl_link_ops->kind, "bridge")) | |
4950 | err = rocker_port_bridge_join(rocker_port, master); | |
a6e95cc7 | 4951 | else if (rocker_port_is_bridged(rocker_port)) |
6c707945 SF |
4952 | err = rocker_port_bridge_leave(rocker_port); |
4953 | ||
4954 | return err; | |
4955 | } | |
4956 | ||
4957 | static int rocker_netdevice_event(struct notifier_block *unused, | |
4958 | unsigned long event, void *ptr) | |
4959 | { | |
4960 | struct net_device *dev; | |
4961 | int err; | |
4962 | ||
4963 | switch (event) { | |
4964 | case NETDEV_CHANGEUPPER: | |
4965 | dev = netdev_notifier_info_to_dev(ptr); | |
4966 | if (!rocker_port_dev_check(dev)) | |
4967 | return NOTIFY_DONE; | |
4968 | err = rocker_port_master_changed(dev); | |
4969 | if (err) | |
4970 | netdev_warn(dev, | |
4971 | "failed to reflect master change (err %d)\n", | |
4972 | err); | |
4973 | break; | |
4974 | } | |
4975 | ||
4976 | return NOTIFY_DONE; | |
4977 | } | |
4978 | ||
4979 | static struct notifier_block rocker_netdevice_nb __read_mostly = { | |
4980 | .notifier_call = rocker_netdevice_event, | |
4981 | }; | |
4982 | ||
c1beeef7 SF |
4983 | /************************************ |
4984 | * Net event notifier event handler | |
4985 | ************************************/ | |
4986 | ||
4987 | static int rocker_neigh_update(struct net_device *dev, struct neighbour *n) | |
4988 | { | |
4989 | struct rocker_port *rocker_port = netdev_priv(dev); | |
4990 | int flags = (n->nud_state & NUD_VALID) ? 0 : ROCKER_OP_FLAG_REMOVE; | |
4991 | __be32 ip_addr = *(__be32 *)n->primary_key; | |
4992 | ||
4993 | return rocker_port_ipv4_neigh(rocker_port, flags, ip_addr, n->ha); | |
4994 | } | |
4995 | ||
4996 | static int rocker_netevent_event(struct notifier_block *unused, | |
4997 | unsigned long event, void *ptr) | |
4998 | { | |
4999 | struct net_device *dev; | |
5000 | struct neighbour *n = ptr; | |
5001 | int err; | |
5002 | ||
5003 | switch (event) { | |
5004 | case NETEVENT_NEIGH_UPDATE: | |
5005 | if (n->tbl != &arp_tbl) | |
5006 | return NOTIFY_DONE; | |
5007 | dev = n->dev; | |
5008 | if (!rocker_port_dev_check(dev)) | |
5009 | return NOTIFY_DONE; | |
5010 | err = rocker_neigh_update(dev, n); | |
5011 | if (err) | |
5012 | netdev_warn(dev, | |
5013 | "failed to handle neigh update (err %d)\n", | |
5014 | err); | |
5015 | break; | |
5016 | } | |
5017 | ||
5018 | return NOTIFY_DONE; | |
5019 | } | |
5020 | ||
5021 | static struct notifier_block rocker_netevent_nb __read_mostly = { | |
5022 | .notifier_call = rocker_netevent_event, | |
5023 | }; | |
5024 | ||
4b8ac966 JP |
5025 | /*********************** |
5026 | * Module init and exit | |
5027 | ***********************/ | |
5028 | ||
5029 | static int __init rocker_module_init(void) | |
5030 | { | |
6c707945 SF |
5031 | int err; |
5032 | ||
5033 | register_netdevice_notifier(&rocker_netdevice_nb); | |
c1beeef7 | 5034 | register_netevent_notifier(&rocker_netevent_nb); |
6c707945 SF |
5035 | err = pci_register_driver(&rocker_pci_driver); |
5036 | if (err) | |
5037 | goto err_pci_register_driver; | |
5038 | return 0; | |
5039 | ||
5040 | err_pci_register_driver: | |
c1beeef7 | 5041 | unregister_netdevice_notifier(&rocker_netevent_nb); |
6c707945 SF |
5042 | unregister_netdevice_notifier(&rocker_netdevice_nb); |
5043 | return err; | |
4b8ac966 JP |
5044 | } |
5045 | ||
5046 | static void __exit rocker_module_exit(void) | |
5047 | { | |
c1beeef7 | 5048 | unregister_netevent_notifier(&rocker_netevent_nb); |
6c707945 | 5049 | unregister_netdevice_notifier(&rocker_netdevice_nb); |
4b8ac966 JP |
5050 | pci_unregister_driver(&rocker_pci_driver); |
5051 | } | |
5052 | ||
5053 | module_init(rocker_module_init); | |
5054 | module_exit(rocker_module_exit); | |
5055 | ||
5056 | MODULE_LICENSE("GPL v2"); | |
5057 | MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>"); | |
5058 | MODULE_AUTHOR("Scott Feldman <sfeldma@gmail.com>"); | |
5059 | MODULE_DESCRIPTION("Rocker switch device driver"); | |
5060 | MODULE_DEVICE_TABLE(pci, rocker_pci_id_table); |