]>
Commit | Line | Data |
---|---|---|
1 | /* | |
2 | * Copyright (c) 2007 Mellanox Technologies. All rights reserved. | |
3 | * | |
4 | * This software is available to you under a choice of one of two | |
5 | * licenses. You may choose to be licensed under the terms of the GNU | |
6 | * General Public License (GPL) Version 2, available from the file | |
7 | * COPYING in the main directory of this source tree, or the | |
8 | * OpenIB.org BSD license below: | |
9 | * | |
10 | * Redistribution and use in source and binary forms, with or | |
11 | * without modification, are permitted provided that the following | |
12 | * conditions are met: | |
13 | * | |
14 | * - Redistributions of source code must retain the above | |
15 | * copyright notice, this list of conditions and the following | |
16 | * disclaimer. | |
17 | * | |
18 | * - Redistributions in binary form must reproduce the above | |
19 | * copyright notice, this list of conditions and the following | |
20 | * disclaimer in the documentation and/or other materials | |
21 | * provided with the distribution. | |
22 | * | |
23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
24 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
25 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
26 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
27 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
28 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
29 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
30 | * SOFTWARE. | |
31 | */ | |
32 | ||
33 | #include <linux/errno.h> | |
34 | #include <linux/if_ether.h> | |
35 | #include <linux/if_vlan.h> | |
36 | #include <linux/export.h> | |
37 | ||
38 | #include <linux/mlx4/cmd.h> | |
39 | ||
40 | #include "mlx4.h" | |
41 | #include "mlx4_stats.h" | |
42 | ||
43 | #define MLX4_MAC_VALID (1ull << 63) | |
44 | ||
45 | #define MLX4_VLAN_VALID (1u << 31) | |
46 | #define MLX4_VLAN_MASK 0xfff | |
47 | ||
48 | #define MLX4_STATS_TRAFFIC_COUNTERS_MASK 0xfULL | |
49 | #define MLX4_STATS_TRAFFIC_DROPS_MASK 0xc0ULL | |
50 | #define MLX4_STATS_ERROR_COUNTERS_MASK 0x1ffc30ULL | |
51 | #define MLX4_STATS_PORT_COUNTERS_MASK 0x1fe00000ULL | |
52 | ||
53 | #define MLX4_FLAG_V_IGNORE_FCS_MASK 0x2 | |
54 | #define MLX4_IGNORE_FCS_MASK 0x1 | |
55 | ||
56 | void mlx4_init_mac_table(struct mlx4_dev *dev, struct mlx4_mac_table *table) | |
57 | { | |
58 | int i; | |
59 | ||
60 | mutex_init(&table->mutex); | |
61 | for (i = 0; i < MLX4_MAX_MAC_NUM; i++) { | |
62 | table->entries[i] = 0; | |
63 | table->refs[i] = 0; | |
64 | table->is_dup[i] = false; | |
65 | } | |
66 | table->max = 1 << dev->caps.log_num_macs; | |
67 | table->total = 0; | |
68 | } | |
69 | ||
70 | void mlx4_init_vlan_table(struct mlx4_dev *dev, struct mlx4_vlan_table *table) | |
71 | { | |
72 | int i; | |
73 | ||
74 | mutex_init(&table->mutex); | |
75 | for (i = 0; i < MLX4_MAX_VLAN_NUM; i++) { | |
76 | table->entries[i] = 0; | |
77 | table->refs[i] = 0; | |
78 | table->is_dup[i] = false; | |
79 | } | |
80 | table->max = (1 << dev->caps.log_num_vlans) - MLX4_VLAN_REGULAR; | |
81 | table->total = 0; | |
82 | } | |
83 | ||
84 | void mlx4_init_roce_gid_table(struct mlx4_dev *dev, | |
85 | struct mlx4_roce_gid_table *table) | |
86 | { | |
87 | int i; | |
88 | ||
89 | mutex_init(&table->mutex); | |
90 | for (i = 0; i < MLX4_ROCE_MAX_GIDS; i++) | |
91 | memset(table->roce_gids[i].raw, 0, MLX4_ROCE_GID_ENTRY_SIZE); | |
92 | } | |
93 | ||
94 | static int validate_index(struct mlx4_dev *dev, | |
95 | struct mlx4_mac_table *table, int index) | |
96 | { | |
97 | int err = 0; | |
98 | ||
99 | if (index < 0 || index >= table->max || !table->entries[index]) { | |
100 | mlx4_warn(dev, "No valid Mac entry for the given index\n"); | |
101 | err = -EINVAL; | |
102 | } | |
103 | return err; | |
104 | } | |
105 | ||
106 | static int find_index(struct mlx4_dev *dev, | |
107 | struct mlx4_mac_table *table, u64 mac) | |
108 | { | |
109 | int i; | |
110 | ||
111 | for (i = 0; i < MLX4_MAX_MAC_NUM; i++) { | |
112 | if (table->refs[i] && | |
113 | (MLX4_MAC_MASK & mac) == | |
114 | (MLX4_MAC_MASK & be64_to_cpu(table->entries[i]))) | |
115 | return i; | |
116 | } | |
117 | /* Mac not found */ | |
118 | return -EINVAL; | |
119 | } | |
120 | ||
121 | static int mlx4_set_port_mac_table(struct mlx4_dev *dev, u8 port, | |
122 | __be64 *entries) | |
123 | { | |
124 | struct mlx4_cmd_mailbox *mailbox; | |
125 | u32 in_mod; | |
126 | int err; | |
127 | ||
128 | mailbox = mlx4_alloc_cmd_mailbox(dev); | |
129 | if (IS_ERR(mailbox)) | |
130 | return PTR_ERR(mailbox); | |
131 | ||
132 | memcpy(mailbox->buf, entries, MLX4_MAC_TABLE_SIZE); | |
133 | ||
134 | in_mod = MLX4_SET_PORT_MAC_TABLE << 8 | port; | |
135 | ||
136 | err = mlx4_cmd(dev, mailbox->dma, in_mod, MLX4_SET_PORT_ETH_OPCODE, | |
137 | MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B, | |
138 | MLX4_CMD_NATIVE); | |
139 | ||
140 | mlx4_free_cmd_mailbox(dev, mailbox); | |
141 | return err; | |
142 | } | |
143 | ||
144 | int mlx4_find_cached_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *idx) | |
145 | { | |
146 | struct mlx4_port_info *info = &mlx4_priv(dev)->port[port]; | |
147 | struct mlx4_mac_table *table = &info->mac_table; | |
148 | int i; | |
149 | ||
150 | for (i = 0; i < MLX4_MAX_MAC_NUM; i++) { | |
151 | if (!table->refs[i]) | |
152 | continue; | |
153 | ||
154 | if (mac == (MLX4_MAC_MASK & be64_to_cpu(table->entries[i]))) { | |
155 | *idx = i; | |
156 | return 0; | |
157 | } | |
158 | } | |
159 | ||
160 | return -ENOENT; | |
161 | } | |
162 | EXPORT_SYMBOL_GPL(mlx4_find_cached_mac); | |
163 | ||
164 | static bool mlx4_need_mf_bond(struct mlx4_dev *dev) | |
165 | { | |
166 | int i, num_eth_ports = 0; | |
167 | ||
168 | if (!mlx4_is_mfunc(dev)) | |
169 | return false; | |
170 | mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) | |
171 | ++num_eth_ports; | |
172 | ||
173 | return (num_eth_ports == 2) ? true : false; | |
174 | } | |
175 | ||
176 | int __mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac) | |
177 | { | |
178 | struct mlx4_port_info *info = &mlx4_priv(dev)->port[port]; | |
179 | struct mlx4_mac_table *table = &info->mac_table; | |
180 | int i, err = 0; | |
181 | int free = -1; | |
182 | int free_for_dup = -1; | |
183 | bool dup = mlx4_is_mf_bonded(dev); | |
184 | u8 dup_port = (port == 1) ? 2 : 1; | |
185 | struct mlx4_mac_table *dup_table = &mlx4_priv(dev)->port[dup_port].mac_table; | |
186 | bool need_mf_bond = mlx4_need_mf_bond(dev); | |
187 | bool can_mf_bond = true; | |
188 | ||
189 | mlx4_dbg(dev, "Registering MAC: 0x%llx for port %d %s duplicate\n", | |
190 | (unsigned long long)mac, port, | |
191 | dup ? "with" : "without"); | |
192 | ||
193 | if (need_mf_bond) { | |
194 | if (port == 1) { | |
195 | mutex_lock(&table->mutex); | |
196 | mutex_lock_nested(&dup_table->mutex, SINGLE_DEPTH_NESTING); | |
197 | } else { | |
198 | mutex_lock(&dup_table->mutex); | |
199 | mutex_lock_nested(&table->mutex, SINGLE_DEPTH_NESTING); | |
200 | } | |
201 | } else { | |
202 | mutex_lock(&table->mutex); | |
203 | } | |
204 | ||
205 | if (need_mf_bond) { | |
206 | int index_at_port = -1; | |
207 | int index_at_dup_port = -1; | |
208 | ||
209 | for (i = 0; i < MLX4_MAX_MAC_NUM; i++) { | |
210 | if (((MLX4_MAC_MASK & mac) == (MLX4_MAC_MASK & be64_to_cpu(table->entries[i])))) | |
211 | index_at_port = i; | |
212 | if (((MLX4_MAC_MASK & mac) == (MLX4_MAC_MASK & be64_to_cpu(dup_table->entries[i])))) | |
213 | index_at_dup_port = i; | |
214 | } | |
215 | ||
216 | /* check that same mac is not in the tables at different indices */ | |
217 | if ((index_at_port != index_at_dup_port) && | |
218 | (index_at_port >= 0) && | |
219 | (index_at_dup_port >= 0)) | |
220 | can_mf_bond = false; | |
221 | ||
222 | /* If the mac is already in the primary table, the slot must be | |
223 | * available in the duplicate table as well. | |
224 | */ | |
225 | if (index_at_port >= 0 && index_at_dup_port < 0 && | |
226 | dup_table->refs[index_at_port]) { | |
227 | can_mf_bond = false; | |
228 | } | |
229 | /* If the mac is already in the duplicate table, check that the | |
230 | * corresponding index is not occupied in the primary table, or | |
231 | * the primary table already contains the mac at the same index. | |
232 | * Otherwise, you cannot bond (primary contains a different mac | |
233 | * at that index). | |
234 | */ | |
235 | if (index_at_dup_port >= 0) { | |
236 | if (!table->refs[index_at_dup_port] || | |
237 | ((MLX4_MAC_MASK & mac) == (MLX4_MAC_MASK & be64_to_cpu(table->entries[index_at_dup_port])))) | |
238 | free_for_dup = index_at_dup_port; | |
239 | else | |
240 | can_mf_bond = false; | |
241 | } | |
242 | } | |
243 | ||
244 | for (i = 0; i < MLX4_MAX_MAC_NUM; i++) { | |
245 | if (!table->refs[i]) { | |
246 | if (free < 0) | |
247 | free = i; | |
248 | if (free_for_dup < 0 && need_mf_bond && can_mf_bond) { | |
249 | if (!dup_table->refs[i]) | |
250 | free_for_dup = i; | |
251 | } | |
252 | continue; | |
253 | } | |
254 | ||
255 | if ((MLX4_MAC_MASK & mac) == | |
256 | (MLX4_MAC_MASK & be64_to_cpu(table->entries[i]))) { | |
257 | /* MAC already registered, increment ref count */ | |
258 | err = i; | |
259 | ++table->refs[i]; | |
260 | if (dup) { | |
261 | u64 dup_mac = MLX4_MAC_MASK & be64_to_cpu(dup_table->entries[i]); | |
262 | ||
263 | if (dup_mac != mac || !dup_table->is_dup[i]) { | |
264 | mlx4_warn(dev, "register mac: expect duplicate mac 0x%llx on port %d index %d\n", | |
265 | mac, dup_port, i); | |
266 | } | |
267 | } | |
268 | goto out; | |
269 | } | |
270 | } | |
271 | ||
272 | if (need_mf_bond && (free_for_dup < 0)) { | |
273 | if (dup) { | |
274 | mlx4_warn(dev, "Fail to allocate duplicate MAC table entry\n"); | |
275 | mlx4_warn(dev, "High Availability for virtual functions may not work as expected\n"); | |
276 | dup = false; | |
277 | } | |
278 | can_mf_bond = false; | |
279 | } | |
280 | ||
281 | if (need_mf_bond && can_mf_bond) | |
282 | free = free_for_dup; | |
283 | ||
284 | mlx4_dbg(dev, "Free MAC index is %d\n", free); | |
285 | ||
286 | if (table->total == table->max) { | |
287 | /* No free mac entries */ | |
288 | err = -ENOSPC; | |
289 | goto out; | |
290 | } | |
291 | ||
292 | /* Register new MAC */ | |
293 | table->entries[free] = cpu_to_be64(mac | MLX4_MAC_VALID); | |
294 | ||
295 | err = mlx4_set_port_mac_table(dev, port, table->entries); | |
296 | if (unlikely(err)) { | |
297 | mlx4_err(dev, "Failed adding MAC: 0x%llx\n", | |
298 | (unsigned long long) mac); | |
299 | table->entries[free] = 0; | |
300 | goto out; | |
301 | } | |
302 | table->refs[free] = 1; | |
303 | table->is_dup[free] = false; | |
304 | ++table->total; | |
305 | if (dup) { | |
306 | dup_table->refs[free] = 0; | |
307 | dup_table->is_dup[free] = true; | |
308 | dup_table->entries[free] = cpu_to_be64(mac | MLX4_MAC_VALID); | |
309 | ||
310 | err = mlx4_set_port_mac_table(dev, dup_port, dup_table->entries); | |
311 | if (unlikely(err)) { | |
312 | mlx4_warn(dev, "Failed adding duplicate mac: 0x%llx\n", mac); | |
313 | dup_table->is_dup[free] = false; | |
314 | dup_table->entries[free] = 0; | |
315 | goto out; | |
316 | } | |
317 | ++dup_table->total; | |
318 | } | |
319 | err = free; | |
320 | out: | |
321 | if (need_mf_bond) { | |
322 | if (port == 2) { | |
323 | mutex_unlock(&table->mutex); | |
324 | mutex_unlock(&dup_table->mutex); | |
325 | } else { | |
326 | mutex_unlock(&dup_table->mutex); | |
327 | mutex_unlock(&table->mutex); | |
328 | } | |
329 | } else { | |
330 | mutex_unlock(&table->mutex); | |
331 | } | |
332 | return err; | |
333 | } | |
334 | EXPORT_SYMBOL_GPL(__mlx4_register_mac); | |
335 | ||
336 | int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac) | |
337 | { | |
338 | u64 out_param = 0; | |
339 | int err = -EINVAL; | |
340 | ||
341 | if (mlx4_is_mfunc(dev)) { | |
342 | if (!(dev->flags & MLX4_FLAG_OLD_REG_MAC)) { | |
343 | err = mlx4_cmd_imm(dev, mac, &out_param, | |
344 | ((u32) port) << 8 | (u32) RES_MAC, | |
345 | RES_OP_RESERVE_AND_MAP, MLX4_CMD_ALLOC_RES, | |
346 | MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED); | |
347 | } | |
348 | if (err && err == -EINVAL && mlx4_is_slave(dev)) { | |
349 | /* retry using old REG_MAC format */ | |
350 | set_param_l(&out_param, port); | |
351 | err = mlx4_cmd_imm(dev, mac, &out_param, RES_MAC, | |
352 | RES_OP_RESERVE_AND_MAP, MLX4_CMD_ALLOC_RES, | |
353 | MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED); | |
354 | if (!err) | |
355 | dev->flags |= MLX4_FLAG_OLD_REG_MAC; | |
356 | } | |
357 | if (err) | |
358 | return err; | |
359 | ||
360 | return get_param_l(&out_param); | |
361 | } | |
362 | return __mlx4_register_mac(dev, port, mac); | |
363 | } | |
364 | EXPORT_SYMBOL_GPL(mlx4_register_mac); | |
365 | ||
366 | int mlx4_get_base_qpn(struct mlx4_dev *dev, u8 port) | |
367 | { | |
368 | return dev->caps.reserved_qps_base[MLX4_QP_REGION_ETH_ADDR] + | |
369 | (port - 1) * (1 << dev->caps.log_num_macs); | |
370 | } | |
371 | EXPORT_SYMBOL_GPL(mlx4_get_base_qpn); | |
372 | ||
373 | void __mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, u64 mac) | |
374 | { | |
375 | struct mlx4_port_info *info; | |
376 | struct mlx4_mac_table *table; | |
377 | int index; | |
378 | bool dup = mlx4_is_mf_bonded(dev); | |
379 | u8 dup_port = (port == 1) ? 2 : 1; | |
380 | struct mlx4_mac_table *dup_table = &mlx4_priv(dev)->port[dup_port].mac_table; | |
381 | ||
382 | if (port < 1 || port > dev->caps.num_ports) { | |
383 | mlx4_warn(dev, "invalid port number (%d), aborting...\n", port); | |
384 | return; | |
385 | } | |
386 | info = &mlx4_priv(dev)->port[port]; | |
387 | table = &info->mac_table; | |
388 | ||
389 | if (dup) { | |
390 | if (port == 1) { | |
391 | mutex_lock(&table->mutex); | |
392 | mutex_lock_nested(&dup_table->mutex, SINGLE_DEPTH_NESTING); | |
393 | } else { | |
394 | mutex_lock(&dup_table->mutex); | |
395 | mutex_lock_nested(&table->mutex, SINGLE_DEPTH_NESTING); | |
396 | } | |
397 | } else { | |
398 | mutex_lock(&table->mutex); | |
399 | } | |
400 | ||
401 | index = find_index(dev, table, mac); | |
402 | ||
403 | if (validate_index(dev, table, index)) | |
404 | goto out; | |
405 | ||
406 | if (--table->refs[index] || table->is_dup[index]) { | |
407 | mlx4_dbg(dev, "Have more references for index %d, no need to modify mac table\n", | |
408 | index); | |
409 | if (!table->refs[index]) | |
410 | dup_table->is_dup[index] = false; | |
411 | goto out; | |
412 | } | |
413 | ||
414 | table->entries[index] = 0; | |
415 | if (mlx4_set_port_mac_table(dev, port, table->entries)) | |
416 | mlx4_warn(dev, "Fail to set mac in port %d during unregister\n", port); | |
417 | --table->total; | |
418 | ||
419 | if (dup) { | |
420 | dup_table->is_dup[index] = false; | |
421 | if (dup_table->refs[index]) | |
422 | goto out; | |
423 | dup_table->entries[index] = 0; | |
424 | if (mlx4_set_port_mac_table(dev, dup_port, dup_table->entries)) | |
425 | mlx4_warn(dev, "Fail to set mac in duplicate port %d during unregister\n", dup_port); | |
426 | ||
427 | --table->total; | |
428 | } | |
429 | out: | |
430 | if (dup) { | |
431 | if (port == 2) { | |
432 | mutex_unlock(&table->mutex); | |
433 | mutex_unlock(&dup_table->mutex); | |
434 | } else { | |
435 | mutex_unlock(&dup_table->mutex); | |
436 | mutex_unlock(&table->mutex); | |
437 | } | |
438 | } else { | |
439 | mutex_unlock(&table->mutex); | |
440 | } | |
441 | } | |
442 | EXPORT_SYMBOL_GPL(__mlx4_unregister_mac); | |
443 | ||
444 | void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, u64 mac) | |
445 | { | |
446 | u64 out_param = 0; | |
447 | ||
448 | if (mlx4_is_mfunc(dev)) { | |
449 | if (!(dev->flags & MLX4_FLAG_OLD_REG_MAC)) { | |
450 | (void) mlx4_cmd_imm(dev, mac, &out_param, | |
451 | ((u32) port) << 8 | (u32) RES_MAC, | |
452 | RES_OP_RESERVE_AND_MAP, MLX4_CMD_FREE_RES, | |
453 | MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED); | |
454 | } else { | |
455 | /* use old unregister mac format */ | |
456 | set_param_l(&out_param, port); | |
457 | (void) mlx4_cmd_imm(dev, mac, &out_param, RES_MAC, | |
458 | RES_OP_RESERVE_AND_MAP, MLX4_CMD_FREE_RES, | |
459 | MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED); | |
460 | } | |
461 | return; | |
462 | } | |
463 | __mlx4_unregister_mac(dev, port, mac); | |
464 | return; | |
465 | } | |
466 | EXPORT_SYMBOL_GPL(mlx4_unregister_mac); | |
467 | ||
468 | int __mlx4_replace_mac(struct mlx4_dev *dev, u8 port, int qpn, u64 new_mac) | |
469 | { | |
470 | struct mlx4_port_info *info = &mlx4_priv(dev)->port[port]; | |
471 | struct mlx4_mac_table *table = &info->mac_table; | |
472 | int index = qpn - info->base_qpn; | |
473 | int err = 0; | |
474 | bool dup = mlx4_is_mf_bonded(dev); | |
475 | u8 dup_port = (port == 1) ? 2 : 1; | |
476 | struct mlx4_mac_table *dup_table = &mlx4_priv(dev)->port[dup_port].mac_table; | |
477 | ||
478 | /* CX1 doesn't support multi-functions */ | |
479 | if (dup) { | |
480 | if (port == 1) { | |
481 | mutex_lock(&table->mutex); | |
482 | mutex_lock_nested(&dup_table->mutex, SINGLE_DEPTH_NESTING); | |
483 | } else { | |
484 | mutex_lock(&dup_table->mutex); | |
485 | mutex_lock_nested(&table->mutex, SINGLE_DEPTH_NESTING); | |
486 | } | |
487 | } else { | |
488 | mutex_lock(&table->mutex); | |
489 | } | |
490 | ||
491 | err = validate_index(dev, table, index); | |
492 | if (err) | |
493 | goto out; | |
494 | ||
495 | table->entries[index] = cpu_to_be64(new_mac | MLX4_MAC_VALID); | |
496 | ||
497 | err = mlx4_set_port_mac_table(dev, port, table->entries); | |
498 | if (unlikely(err)) { | |
499 | mlx4_err(dev, "Failed adding MAC: 0x%llx\n", | |
500 | (unsigned long long) new_mac); | |
501 | table->entries[index] = 0; | |
502 | } else { | |
503 | if (dup) { | |
504 | dup_table->entries[index] = cpu_to_be64(new_mac | MLX4_MAC_VALID); | |
505 | ||
506 | err = mlx4_set_port_mac_table(dev, dup_port, dup_table->entries); | |
507 | if (unlikely(err)) { | |
508 | mlx4_err(dev, "Failed adding duplicate MAC: 0x%llx\n", | |
509 | (unsigned long long)new_mac); | |
510 | dup_table->entries[index] = 0; | |
511 | } | |
512 | } | |
513 | } | |
514 | out: | |
515 | if (dup) { | |
516 | if (port == 2) { | |
517 | mutex_unlock(&table->mutex); | |
518 | mutex_unlock(&dup_table->mutex); | |
519 | } else { | |
520 | mutex_unlock(&dup_table->mutex); | |
521 | mutex_unlock(&table->mutex); | |
522 | } | |
523 | } else { | |
524 | mutex_unlock(&table->mutex); | |
525 | } | |
526 | return err; | |
527 | } | |
528 | EXPORT_SYMBOL_GPL(__mlx4_replace_mac); | |
529 | ||
530 | static int mlx4_set_port_vlan_table(struct mlx4_dev *dev, u8 port, | |
531 | __be32 *entries) | |
532 | { | |
533 | struct mlx4_cmd_mailbox *mailbox; | |
534 | u32 in_mod; | |
535 | int err; | |
536 | ||
537 | mailbox = mlx4_alloc_cmd_mailbox(dev); | |
538 | if (IS_ERR(mailbox)) | |
539 | return PTR_ERR(mailbox); | |
540 | ||
541 | memcpy(mailbox->buf, entries, MLX4_VLAN_TABLE_SIZE); | |
542 | in_mod = MLX4_SET_PORT_VLAN_TABLE << 8 | port; | |
543 | err = mlx4_cmd(dev, mailbox->dma, in_mod, MLX4_SET_PORT_ETH_OPCODE, | |
544 | MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B, | |
545 | MLX4_CMD_NATIVE); | |
546 | ||
547 | mlx4_free_cmd_mailbox(dev, mailbox); | |
548 | ||
549 | return err; | |
550 | } | |
551 | ||
552 | int mlx4_find_cached_vlan(struct mlx4_dev *dev, u8 port, u16 vid, int *idx) | |
553 | { | |
554 | struct mlx4_vlan_table *table = &mlx4_priv(dev)->port[port].vlan_table; | |
555 | int i; | |
556 | ||
557 | for (i = 0; i < MLX4_MAX_VLAN_NUM; ++i) { | |
558 | if (table->refs[i] && | |
559 | (vid == (MLX4_VLAN_MASK & | |
560 | be32_to_cpu(table->entries[i])))) { | |
561 | /* VLAN already registered, increase reference count */ | |
562 | *idx = i; | |
563 | return 0; | |
564 | } | |
565 | } | |
566 | ||
567 | return -ENOENT; | |
568 | } | |
569 | EXPORT_SYMBOL_GPL(mlx4_find_cached_vlan); | |
570 | ||
571 | int __mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan, | |
572 | int *index) | |
573 | { | |
574 | struct mlx4_vlan_table *table = &mlx4_priv(dev)->port[port].vlan_table; | |
575 | int i, err = 0; | |
576 | int free = -1; | |
577 | int free_for_dup = -1; | |
578 | bool dup = mlx4_is_mf_bonded(dev); | |
579 | u8 dup_port = (port == 1) ? 2 : 1; | |
580 | struct mlx4_vlan_table *dup_table = &mlx4_priv(dev)->port[dup_port].vlan_table; | |
581 | bool need_mf_bond = mlx4_need_mf_bond(dev); | |
582 | bool can_mf_bond = true; | |
583 | ||
584 | mlx4_dbg(dev, "Registering VLAN: %d for port %d %s duplicate\n", | |
585 | vlan, port, | |
586 | dup ? "with" : "without"); | |
587 | ||
588 | if (need_mf_bond) { | |
589 | if (port == 1) { | |
590 | mutex_lock(&table->mutex); | |
591 | mutex_lock_nested(&dup_table->mutex, SINGLE_DEPTH_NESTING); | |
592 | } else { | |
593 | mutex_lock(&dup_table->mutex); | |
594 | mutex_lock_nested(&table->mutex, SINGLE_DEPTH_NESTING); | |
595 | } | |
596 | } else { | |
597 | mutex_lock(&table->mutex); | |
598 | } | |
599 | ||
600 | if (table->total == table->max) { | |
601 | /* No free vlan entries */ | |
602 | err = -ENOSPC; | |
603 | goto out; | |
604 | } | |
605 | ||
606 | if (need_mf_bond) { | |
607 | int index_at_port = -1; | |
608 | int index_at_dup_port = -1; | |
609 | ||
610 | for (i = MLX4_VLAN_REGULAR; i < MLX4_MAX_VLAN_NUM; i++) { | |
611 | if ((vlan == (MLX4_VLAN_MASK & be32_to_cpu(table->entries[i])))) | |
612 | index_at_port = i; | |
613 | if ((vlan == (MLX4_VLAN_MASK & be32_to_cpu(dup_table->entries[i])))) | |
614 | index_at_dup_port = i; | |
615 | } | |
616 | /* check that same vlan is not in the tables at different indices */ | |
617 | if ((index_at_port != index_at_dup_port) && | |
618 | (index_at_port >= 0) && | |
619 | (index_at_dup_port >= 0)) | |
620 | can_mf_bond = false; | |
621 | ||
622 | /* If the vlan is already in the primary table, the slot must be | |
623 | * available in the duplicate table as well. | |
624 | */ | |
625 | if (index_at_port >= 0 && index_at_dup_port < 0 && | |
626 | dup_table->refs[index_at_port]) { | |
627 | can_mf_bond = false; | |
628 | } | |
629 | /* If the vlan is already in the duplicate table, check that the | |
630 | * corresponding index is not occupied in the primary table, or | |
631 | * the primary table already contains the vlan at the same index. | |
632 | * Otherwise, you cannot bond (primary contains a different vlan | |
633 | * at that index). | |
634 | */ | |
635 | if (index_at_dup_port >= 0) { | |
636 | if (!table->refs[index_at_dup_port] || | |
637 | (vlan == (MLX4_VLAN_MASK & be32_to_cpu(dup_table->entries[index_at_dup_port])))) | |
638 | free_for_dup = index_at_dup_port; | |
639 | else | |
640 | can_mf_bond = false; | |
641 | } | |
642 | } | |
643 | ||
644 | for (i = MLX4_VLAN_REGULAR; i < MLX4_MAX_VLAN_NUM; i++) { | |
645 | if (!table->refs[i]) { | |
646 | if (free < 0) | |
647 | free = i; | |
648 | if (free_for_dup < 0 && need_mf_bond && can_mf_bond) { | |
649 | if (!dup_table->refs[i]) | |
650 | free_for_dup = i; | |
651 | } | |
652 | } | |
653 | ||
654 | if ((table->refs[i] || table->is_dup[i]) && | |
655 | (vlan == (MLX4_VLAN_MASK & | |
656 | be32_to_cpu(table->entries[i])))) { | |
657 | /* Vlan already registered, increase references count */ | |
658 | mlx4_dbg(dev, "vlan %u is already registered.\n", vlan); | |
659 | *index = i; | |
660 | ++table->refs[i]; | |
661 | if (dup) { | |
662 | u16 dup_vlan = MLX4_VLAN_MASK & be32_to_cpu(dup_table->entries[i]); | |
663 | ||
664 | if (dup_vlan != vlan || !dup_table->is_dup[i]) { | |
665 | mlx4_warn(dev, "register vlan: expected duplicate vlan %u on port %d index %d\n", | |
666 | vlan, dup_port, i); | |
667 | } | |
668 | } | |
669 | goto out; | |
670 | } | |
671 | } | |
672 | ||
673 | if (need_mf_bond && (free_for_dup < 0)) { | |
674 | if (dup) { | |
675 | mlx4_warn(dev, "Fail to allocate duplicate VLAN table entry\n"); | |
676 | mlx4_warn(dev, "High Availability for virtual functions may not work as expected\n"); | |
677 | dup = false; | |
678 | } | |
679 | can_mf_bond = false; | |
680 | } | |
681 | ||
682 | if (need_mf_bond && can_mf_bond) | |
683 | free = free_for_dup; | |
684 | ||
685 | if (free < 0) { | |
686 | err = -ENOMEM; | |
687 | goto out; | |
688 | } | |
689 | ||
690 | /* Register new VLAN */ | |
691 | table->refs[free] = 1; | |
692 | table->is_dup[free] = false; | |
693 | table->entries[free] = cpu_to_be32(vlan | MLX4_VLAN_VALID); | |
694 | ||
695 | err = mlx4_set_port_vlan_table(dev, port, table->entries); | |
696 | if (unlikely(err)) { | |
697 | mlx4_warn(dev, "Failed adding vlan: %u\n", vlan); | |
698 | table->refs[free] = 0; | |
699 | table->entries[free] = 0; | |
700 | goto out; | |
701 | } | |
702 | ++table->total; | |
703 | if (dup) { | |
704 | dup_table->refs[free] = 0; | |
705 | dup_table->is_dup[free] = true; | |
706 | dup_table->entries[free] = cpu_to_be32(vlan | MLX4_VLAN_VALID); | |
707 | ||
708 | err = mlx4_set_port_vlan_table(dev, dup_port, dup_table->entries); | |
709 | if (unlikely(err)) { | |
710 | mlx4_warn(dev, "Failed adding duplicate vlan: %u\n", vlan); | |
711 | dup_table->is_dup[free] = false; | |
712 | dup_table->entries[free] = 0; | |
713 | goto out; | |
714 | } | |
715 | ++dup_table->total; | |
716 | } | |
717 | ||
718 | *index = free; | |
719 | out: | |
720 | if (need_mf_bond) { | |
721 | if (port == 2) { | |
722 | mutex_unlock(&table->mutex); | |
723 | mutex_unlock(&dup_table->mutex); | |
724 | } else { | |
725 | mutex_unlock(&dup_table->mutex); | |
726 | mutex_unlock(&table->mutex); | |
727 | } | |
728 | } else { | |
729 | mutex_unlock(&table->mutex); | |
730 | } | |
731 | return err; | |
732 | } | |
733 | ||
734 | int mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan, int *index) | |
735 | { | |
736 | u64 out_param = 0; | |
737 | int err; | |
738 | ||
739 | if (vlan > 4095) | |
740 | return -EINVAL; | |
741 | ||
742 | if (mlx4_is_mfunc(dev)) { | |
743 | err = mlx4_cmd_imm(dev, vlan, &out_param, | |
744 | ((u32) port) << 8 | (u32) RES_VLAN, | |
745 | RES_OP_RESERVE_AND_MAP, MLX4_CMD_ALLOC_RES, | |
746 | MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED); | |
747 | if (!err) | |
748 | *index = get_param_l(&out_param); | |
749 | ||
750 | return err; | |
751 | } | |
752 | return __mlx4_register_vlan(dev, port, vlan, index); | |
753 | } | |
754 | EXPORT_SYMBOL_GPL(mlx4_register_vlan); | |
755 | ||
756 | void __mlx4_unregister_vlan(struct mlx4_dev *dev, u8 port, u16 vlan) | |
757 | { | |
758 | struct mlx4_vlan_table *table = &mlx4_priv(dev)->port[port].vlan_table; | |
759 | int index; | |
760 | bool dup = mlx4_is_mf_bonded(dev); | |
761 | u8 dup_port = (port == 1) ? 2 : 1; | |
762 | struct mlx4_vlan_table *dup_table = &mlx4_priv(dev)->port[dup_port].vlan_table; | |
763 | ||
764 | if (dup) { | |
765 | if (port == 1) { | |
766 | mutex_lock(&table->mutex); | |
767 | mutex_lock_nested(&dup_table->mutex, SINGLE_DEPTH_NESTING); | |
768 | } else { | |
769 | mutex_lock(&dup_table->mutex); | |
770 | mutex_lock_nested(&table->mutex, SINGLE_DEPTH_NESTING); | |
771 | } | |
772 | } else { | |
773 | mutex_lock(&table->mutex); | |
774 | } | |
775 | ||
776 | if (mlx4_find_cached_vlan(dev, port, vlan, &index)) { | |
777 | mlx4_warn(dev, "vlan 0x%x is not in the vlan table\n", vlan); | |
778 | goto out; | |
779 | } | |
780 | ||
781 | if (index < MLX4_VLAN_REGULAR) { | |
782 | mlx4_warn(dev, "Trying to free special vlan index %d\n", index); | |
783 | goto out; | |
784 | } | |
785 | ||
786 | if (--table->refs[index] || table->is_dup[index]) { | |
787 | mlx4_dbg(dev, "Have %d more references for index %d, no need to modify vlan table\n", | |
788 | table->refs[index], index); | |
789 | if (!table->refs[index]) | |
790 | dup_table->is_dup[index] = false; | |
791 | goto out; | |
792 | } | |
793 | table->entries[index] = 0; | |
794 | if (mlx4_set_port_vlan_table(dev, port, table->entries)) | |
795 | mlx4_warn(dev, "Fail to set vlan in port %d during unregister\n", port); | |
796 | --table->total; | |
797 | if (dup) { | |
798 | dup_table->is_dup[index] = false; | |
799 | if (dup_table->refs[index]) | |
800 | goto out; | |
801 | dup_table->entries[index] = 0; | |
802 | if (mlx4_set_port_vlan_table(dev, dup_port, dup_table->entries)) | |
803 | mlx4_warn(dev, "Fail to set vlan in duplicate port %d during unregister\n", dup_port); | |
804 | --dup_table->total; | |
805 | } | |
806 | out: | |
807 | if (dup) { | |
808 | if (port == 2) { | |
809 | mutex_unlock(&table->mutex); | |
810 | mutex_unlock(&dup_table->mutex); | |
811 | } else { | |
812 | mutex_unlock(&dup_table->mutex); | |
813 | mutex_unlock(&table->mutex); | |
814 | } | |
815 | } else { | |
816 | mutex_unlock(&table->mutex); | |
817 | } | |
818 | } | |
819 | ||
820 | void mlx4_unregister_vlan(struct mlx4_dev *dev, u8 port, u16 vlan) | |
821 | { | |
822 | u64 out_param = 0; | |
823 | ||
824 | if (mlx4_is_mfunc(dev)) { | |
825 | (void) mlx4_cmd_imm(dev, vlan, &out_param, | |
826 | ((u32) port) << 8 | (u32) RES_VLAN, | |
827 | RES_OP_RESERVE_AND_MAP, | |
828 | MLX4_CMD_FREE_RES, MLX4_CMD_TIME_CLASS_A, | |
829 | MLX4_CMD_WRAPPED); | |
830 | return; | |
831 | } | |
832 | __mlx4_unregister_vlan(dev, port, vlan); | |
833 | } | |
834 | EXPORT_SYMBOL_GPL(mlx4_unregister_vlan); | |
835 | ||
836 | int mlx4_bond_mac_table(struct mlx4_dev *dev) | |
837 | { | |
838 | struct mlx4_mac_table *t1 = &mlx4_priv(dev)->port[1].mac_table; | |
839 | struct mlx4_mac_table *t2 = &mlx4_priv(dev)->port[2].mac_table; | |
840 | int ret = 0; | |
841 | int i; | |
842 | bool update1 = false; | |
843 | bool update2 = false; | |
844 | ||
845 | mutex_lock(&t1->mutex); | |
846 | mutex_lock(&t2->mutex); | |
847 | for (i = 0; i < MLX4_MAX_MAC_NUM; i++) { | |
848 | if ((t1->entries[i] != t2->entries[i]) && | |
849 | t1->entries[i] && t2->entries[i]) { | |
850 | mlx4_warn(dev, "can't duplicate entry %d in mac table\n", i); | |
851 | ret = -EINVAL; | |
852 | goto unlock; | |
853 | } | |
854 | } | |
855 | ||
856 | for (i = 0; i < MLX4_MAX_MAC_NUM; i++) { | |
857 | if (t1->entries[i] && !t2->entries[i]) { | |
858 | t2->entries[i] = t1->entries[i]; | |
859 | t2->is_dup[i] = true; | |
860 | update2 = true; | |
861 | } else if (!t1->entries[i] && t2->entries[i]) { | |
862 | t1->entries[i] = t2->entries[i]; | |
863 | t1->is_dup[i] = true; | |
864 | update1 = true; | |
865 | } else if (t1->entries[i] && t2->entries[i]) { | |
866 | t1->is_dup[i] = true; | |
867 | t2->is_dup[i] = true; | |
868 | } | |
869 | } | |
870 | ||
871 | if (update1) { | |
872 | ret = mlx4_set_port_mac_table(dev, 1, t1->entries); | |
873 | if (ret) | |
874 | mlx4_warn(dev, "failed to set MAC table for port 1 (%d)\n", ret); | |
875 | } | |
876 | if (!ret && update2) { | |
877 | ret = mlx4_set_port_mac_table(dev, 2, t2->entries); | |
878 | if (ret) | |
879 | mlx4_warn(dev, "failed to set MAC table for port 2 (%d)\n", ret); | |
880 | } | |
881 | ||
882 | if (ret) | |
883 | mlx4_warn(dev, "failed to create mirror MAC tables\n"); | |
884 | unlock: | |
885 | mutex_unlock(&t2->mutex); | |
886 | mutex_unlock(&t1->mutex); | |
887 | return ret; | |
888 | } | |
889 | ||
890 | int mlx4_unbond_mac_table(struct mlx4_dev *dev) | |
891 | { | |
892 | struct mlx4_mac_table *t1 = &mlx4_priv(dev)->port[1].mac_table; | |
893 | struct mlx4_mac_table *t2 = &mlx4_priv(dev)->port[2].mac_table; | |
894 | int ret = 0; | |
895 | int ret1; | |
896 | int i; | |
897 | bool update1 = false; | |
898 | bool update2 = false; | |
899 | ||
900 | mutex_lock(&t1->mutex); | |
901 | mutex_lock(&t2->mutex); | |
902 | for (i = 0; i < MLX4_MAX_MAC_NUM; i++) { | |
903 | if (t1->entries[i] != t2->entries[i]) { | |
904 | mlx4_warn(dev, "mac table is in an unexpected state when trying to unbond\n"); | |
905 | ret = -EINVAL; | |
906 | goto unlock; | |
907 | } | |
908 | } | |
909 | ||
910 | for (i = 0; i < MLX4_MAX_MAC_NUM; i++) { | |
911 | if (!t1->entries[i]) | |
912 | continue; | |
913 | t1->is_dup[i] = false; | |
914 | if (!t1->refs[i]) { | |
915 | t1->entries[i] = 0; | |
916 | update1 = true; | |
917 | } | |
918 | t2->is_dup[i] = false; | |
919 | if (!t2->refs[i]) { | |
920 | t2->entries[i] = 0; | |
921 | update2 = true; | |
922 | } | |
923 | } | |
924 | ||
925 | if (update1) { | |
926 | ret = mlx4_set_port_mac_table(dev, 1, t1->entries); | |
927 | if (ret) | |
928 | mlx4_warn(dev, "failed to unmirror MAC tables for port 1(%d)\n", ret); | |
929 | } | |
930 | if (update2) { | |
931 | ret1 = mlx4_set_port_mac_table(dev, 2, t2->entries); | |
932 | if (ret1) { | |
933 | mlx4_warn(dev, "failed to unmirror MAC tables for port 2(%d)\n", ret1); | |
934 | ret = ret1; | |
935 | } | |
936 | } | |
937 | unlock: | |
938 | mutex_unlock(&t2->mutex); | |
939 | mutex_unlock(&t1->mutex); | |
940 | return ret; | |
941 | } | |
942 | ||
943 | int mlx4_bond_vlan_table(struct mlx4_dev *dev) | |
944 | { | |
945 | struct mlx4_vlan_table *t1 = &mlx4_priv(dev)->port[1].vlan_table; | |
946 | struct mlx4_vlan_table *t2 = &mlx4_priv(dev)->port[2].vlan_table; | |
947 | int ret = 0; | |
948 | int i; | |
949 | bool update1 = false; | |
950 | bool update2 = false; | |
951 | ||
952 | mutex_lock(&t1->mutex); | |
953 | mutex_lock(&t2->mutex); | |
954 | for (i = 0; i < MLX4_MAX_VLAN_NUM; i++) { | |
955 | if ((t1->entries[i] != t2->entries[i]) && | |
956 | t1->entries[i] && t2->entries[i]) { | |
957 | mlx4_warn(dev, "can't duplicate entry %d in vlan table\n", i); | |
958 | ret = -EINVAL; | |
959 | goto unlock; | |
960 | } | |
961 | } | |
962 | ||
963 | for (i = 0; i < MLX4_MAX_VLAN_NUM; i++) { | |
964 | if (t1->entries[i] && !t2->entries[i]) { | |
965 | t2->entries[i] = t1->entries[i]; | |
966 | t2->is_dup[i] = true; | |
967 | update2 = true; | |
968 | } else if (!t1->entries[i] && t2->entries[i]) { | |
969 | t1->entries[i] = t2->entries[i]; | |
970 | t1->is_dup[i] = true; | |
971 | update1 = true; | |
972 | } else if (t1->entries[i] && t2->entries[i]) { | |
973 | t1->is_dup[i] = true; | |
974 | t2->is_dup[i] = true; | |
975 | } | |
976 | } | |
977 | ||
978 | if (update1) { | |
979 | ret = mlx4_set_port_vlan_table(dev, 1, t1->entries); | |
980 | if (ret) | |
981 | mlx4_warn(dev, "failed to set VLAN table for port 1 (%d)\n", ret); | |
982 | } | |
983 | if (!ret && update2) { | |
984 | ret = mlx4_set_port_vlan_table(dev, 2, t2->entries); | |
985 | if (ret) | |
986 | mlx4_warn(dev, "failed to set VLAN table for port 2 (%d)\n", ret); | |
987 | } | |
988 | ||
989 | if (ret) | |
990 | mlx4_warn(dev, "failed to create mirror VLAN tables\n"); | |
991 | unlock: | |
992 | mutex_unlock(&t2->mutex); | |
993 | mutex_unlock(&t1->mutex); | |
994 | return ret; | |
995 | } | |
996 | ||
997 | int mlx4_unbond_vlan_table(struct mlx4_dev *dev) | |
998 | { | |
999 | struct mlx4_vlan_table *t1 = &mlx4_priv(dev)->port[1].vlan_table; | |
1000 | struct mlx4_vlan_table *t2 = &mlx4_priv(dev)->port[2].vlan_table; | |
1001 | int ret = 0; | |
1002 | int ret1; | |
1003 | int i; | |
1004 | bool update1 = false; | |
1005 | bool update2 = false; | |
1006 | ||
1007 | mutex_lock(&t1->mutex); | |
1008 | mutex_lock(&t2->mutex); | |
1009 | for (i = 0; i < MLX4_MAX_VLAN_NUM; i++) { | |
1010 | if (t1->entries[i] != t2->entries[i]) { | |
1011 | mlx4_warn(dev, "vlan table is in an unexpected state when trying to unbond\n"); | |
1012 | ret = -EINVAL; | |
1013 | goto unlock; | |
1014 | } | |
1015 | } | |
1016 | ||
1017 | for (i = 0; i < MLX4_MAX_VLAN_NUM; i++) { | |
1018 | if (!t1->entries[i]) | |
1019 | continue; | |
1020 | t1->is_dup[i] = false; | |
1021 | if (!t1->refs[i]) { | |
1022 | t1->entries[i] = 0; | |
1023 | update1 = true; | |
1024 | } | |
1025 | t2->is_dup[i] = false; | |
1026 | if (!t2->refs[i]) { | |
1027 | t2->entries[i] = 0; | |
1028 | update2 = true; | |
1029 | } | |
1030 | } | |
1031 | ||
1032 | if (update1) { | |
1033 | ret = mlx4_set_port_vlan_table(dev, 1, t1->entries); | |
1034 | if (ret) | |
1035 | mlx4_warn(dev, "failed to unmirror VLAN tables for port 1(%d)\n", ret); | |
1036 | } | |
1037 | if (update2) { | |
1038 | ret1 = mlx4_set_port_vlan_table(dev, 2, t2->entries); | |
1039 | if (ret1) { | |
1040 | mlx4_warn(dev, "failed to unmirror VLAN tables for port 2(%d)\n", ret1); | |
1041 | ret = ret1; | |
1042 | } | |
1043 | } | |
1044 | unlock: | |
1045 | mutex_unlock(&t2->mutex); | |
1046 | mutex_unlock(&t1->mutex); | |
1047 | return ret; | |
1048 | } | |
1049 | ||
1050 | int mlx4_get_port_ib_caps(struct mlx4_dev *dev, u8 port, __be32 *caps) | |
1051 | { | |
1052 | struct mlx4_cmd_mailbox *inmailbox, *outmailbox; | |
1053 | u8 *inbuf, *outbuf; | |
1054 | int err; | |
1055 | ||
1056 | inmailbox = mlx4_alloc_cmd_mailbox(dev); | |
1057 | if (IS_ERR(inmailbox)) | |
1058 | return PTR_ERR(inmailbox); | |
1059 | ||
1060 | outmailbox = mlx4_alloc_cmd_mailbox(dev); | |
1061 | if (IS_ERR(outmailbox)) { | |
1062 | mlx4_free_cmd_mailbox(dev, inmailbox); | |
1063 | return PTR_ERR(outmailbox); | |
1064 | } | |
1065 | ||
1066 | inbuf = inmailbox->buf; | |
1067 | outbuf = outmailbox->buf; | |
1068 | inbuf[0] = 1; | |
1069 | inbuf[1] = 1; | |
1070 | inbuf[2] = 1; | |
1071 | inbuf[3] = 1; | |
1072 | *(__be16 *) (&inbuf[16]) = cpu_to_be16(0x0015); | |
1073 | *(__be32 *) (&inbuf[20]) = cpu_to_be32(port); | |
1074 | ||
1075 | err = mlx4_cmd_box(dev, inmailbox->dma, outmailbox->dma, port, 3, | |
1076 | MLX4_CMD_MAD_IFC, MLX4_CMD_TIME_CLASS_C, | |
1077 | MLX4_CMD_NATIVE); | |
1078 | if (!err) | |
1079 | *caps = *(__be32 *) (outbuf + 84); | |
1080 | mlx4_free_cmd_mailbox(dev, inmailbox); | |
1081 | mlx4_free_cmd_mailbox(dev, outmailbox); | |
1082 | return err; | |
1083 | } | |
1084 | static struct mlx4_roce_gid_entry zgid_entry; | |
1085 | ||
1086 | int mlx4_get_slave_num_gids(struct mlx4_dev *dev, int slave, int port) | |
1087 | { | |
1088 | int vfs; | |
1089 | int slave_gid = slave; | |
1090 | unsigned i; | |
1091 | struct mlx4_slaves_pport slaves_pport; | |
1092 | struct mlx4_active_ports actv_ports; | |
1093 | unsigned max_port_p_one; | |
1094 | ||
1095 | if (slave == 0) | |
1096 | return MLX4_ROCE_PF_GIDS; | |
1097 | ||
1098 | /* Slave is a VF */ | |
1099 | slaves_pport = mlx4_phys_to_slaves_pport(dev, port); | |
1100 | actv_ports = mlx4_get_active_ports(dev, slave); | |
1101 | max_port_p_one = find_first_bit(actv_ports.ports, dev->caps.num_ports) + | |
1102 | bitmap_weight(actv_ports.ports, dev->caps.num_ports) + 1; | |
1103 | ||
1104 | for (i = 1; i < max_port_p_one; i++) { | |
1105 | struct mlx4_active_ports exclusive_ports; | |
1106 | struct mlx4_slaves_pport slaves_pport_actv; | |
1107 | bitmap_zero(exclusive_ports.ports, dev->caps.num_ports); | |
1108 | set_bit(i - 1, exclusive_ports.ports); | |
1109 | if (i == port) | |
1110 | continue; | |
1111 | slaves_pport_actv = mlx4_phys_to_slaves_pport_actv( | |
1112 | dev, &exclusive_ports); | |
1113 | slave_gid -= bitmap_weight(slaves_pport_actv.slaves, | |
1114 | dev->persist->num_vfs + 1); | |
1115 | } | |
1116 | vfs = bitmap_weight(slaves_pport.slaves, dev->persist->num_vfs + 1) - 1; | |
1117 | if (slave_gid <= ((MLX4_ROCE_MAX_GIDS - MLX4_ROCE_PF_GIDS) % vfs)) | |
1118 | return ((MLX4_ROCE_MAX_GIDS - MLX4_ROCE_PF_GIDS) / vfs) + 1; | |
1119 | return (MLX4_ROCE_MAX_GIDS - MLX4_ROCE_PF_GIDS) / vfs; | |
1120 | } | |
1121 | ||
1122 | int mlx4_get_base_gid_ix(struct mlx4_dev *dev, int slave, int port) | |
1123 | { | |
1124 | int gids; | |
1125 | unsigned i; | |
1126 | int slave_gid = slave; | |
1127 | int vfs; | |
1128 | ||
1129 | struct mlx4_slaves_pport slaves_pport; | |
1130 | struct mlx4_active_ports actv_ports; | |
1131 | unsigned max_port_p_one; | |
1132 | ||
1133 | if (slave == 0) | |
1134 | return 0; | |
1135 | ||
1136 | slaves_pport = mlx4_phys_to_slaves_pport(dev, port); | |
1137 | actv_ports = mlx4_get_active_ports(dev, slave); | |
1138 | max_port_p_one = find_first_bit(actv_ports.ports, dev->caps.num_ports) + | |
1139 | bitmap_weight(actv_ports.ports, dev->caps.num_ports) + 1; | |
1140 | ||
1141 | for (i = 1; i < max_port_p_one; i++) { | |
1142 | struct mlx4_active_ports exclusive_ports; | |
1143 | struct mlx4_slaves_pport slaves_pport_actv; | |
1144 | bitmap_zero(exclusive_ports.ports, dev->caps.num_ports); | |
1145 | set_bit(i - 1, exclusive_ports.ports); | |
1146 | if (i == port) | |
1147 | continue; | |
1148 | slaves_pport_actv = mlx4_phys_to_slaves_pport_actv( | |
1149 | dev, &exclusive_ports); | |
1150 | slave_gid -= bitmap_weight(slaves_pport_actv.slaves, | |
1151 | dev->persist->num_vfs + 1); | |
1152 | } | |
1153 | gids = MLX4_ROCE_MAX_GIDS - MLX4_ROCE_PF_GIDS; | |
1154 | vfs = bitmap_weight(slaves_pport.slaves, dev->persist->num_vfs + 1) - 1; | |
1155 | if (slave_gid <= gids % vfs) | |
1156 | return MLX4_ROCE_PF_GIDS + ((gids / vfs) + 1) * (slave_gid - 1); | |
1157 | ||
1158 | return MLX4_ROCE_PF_GIDS + (gids % vfs) + | |
1159 | ((gids / vfs) * (slave_gid - 1)); | |
1160 | } | |
1161 | EXPORT_SYMBOL_GPL(mlx4_get_base_gid_ix); | |
1162 | ||
1163 | static int mlx4_reset_roce_port_gids(struct mlx4_dev *dev, int slave, | |
1164 | int port, struct mlx4_cmd_mailbox *mailbox) | |
1165 | { | |
1166 | struct mlx4_roce_gid_entry *gid_entry_mbox; | |
1167 | struct mlx4_priv *priv = mlx4_priv(dev); | |
1168 | int num_gids, base, offset; | |
1169 | int i, err; | |
1170 | ||
1171 | num_gids = mlx4_get_slave_num_gids(dev, slave, port); | |
1172 | base = mlx4_get_base_gid_ix(dev, slave, port); | |
1173 | ||
1174 | memset(mailbox->buf, 0, MLX4_MAILBOX_SIZE); | |
1175 | ||
1176 | mutex_lock(&(priv->port[port].gid_table.mutex)); | |
1177 | /* Zero-out gids belonging to that slave in the port GID table */ | |
1178 | for (i = 0, offset = base; i < num_gids; offset++, i++) | |
1179 | memcpy(priv->port[port].gid_table.roce_gids[offset].raw, | |
1180 | zgid_entry.raw, MLX4_ROCE_GID_ENTRY_SIZE); | |
1181 | ||
1182 | /* Now, copy roce port gids table to mailbox for passing to FW */ | |
1183 | gid_entry_mbox = (struct mlx4_roce_gid_entry *)mailbox->buf; | |
1184 | for (i = 0; i < MLX4_ROCE_MAX_GIDS; gid_entry_mbox++, i++) | |
1185 | memcpy(gid_entry_mbox->raw, | |
1186 | priv->port[port].gid_table.roce_gids[i].raw, | |
1187 | MLX4_ROCE_GID_ENTRY_SIZE); | |
1188 | ||
1189 | err = mlx4_cmd(dev, mailbox->dma, | |
1190 | ((u32)port) | (MLX4_SET_PORT_GID_TABLE << 8), | |
1191 | MLX4_SET_PORT_ETH_OPCODE, MLX4_CMD_SET_PORT, | |
1192 | MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE); | |
1193 | mutex_unlock(&(priv->port[port].gid_table.mutex)); | |
1194 | return err; | |
1195 | } | |
1196 | ||
1197 | ||
1198 | void mlx4_reset_roce_gids(struct mlx4_dev *dev, int slave) | |
1199 | { | |
1200 | struct mlx4_active_ports actv_ports; | |
1201 | struct mlx4_cmd_mailbox *mailbox; | |
1202 | int num_eth_ports, err; | |
1203 | int i; | |
1204 | ||
1205 | if (slave < 0 || slave > dev->persist->num_vfs) | |
1206 | return; | |
1207 | ||
1208 | actv_ports = mlx4_get_active_ports(dev, slave); | |
1209 | ||
1210 | for (i = 0, num_eth_ports = 0; i < dev->caps.num_ports; i++) { | |
1211 | if (test_bit(i, actv_ports.ports)) { | |
1212 | if (dev->caps.port_type[i + 1] != MLX4_PORT_TYPE_ETH) | |
1213 | continue; | |
1214 | num_eth_ports++; | |
1215 | } | |
1216 | } | |
1217 | ||
1218 | if (!num_eth_ports) | |
1219 | return; | |
1220 | ||
1221 | /* have ETH ports. Alloc mailbox for SET_PORT command */ | |
1222 | mailbox = mlx4_alloc_cmd_mailbox(dev); | |
1223 | if (IS_ERR(mailbox)) | |
1224 | return; | |
1225 | ||
1226 | for (i = 0; i < dev->caps.num_ports; i++) { | |
1227 | if (test_bit(i, actv_ports.ports)) { | |
1228 | if (dev->caps.port_type[i + 1] != MLX4_PORT_TYPE_ETH) | |
1229 | continue; | |
1230 | err = mlx4_reset_roce_port_gids(dev, slave, i + 1, mailbox); | |
1231 | if (err) | |
1232 | mlx4_warn(dev, "Could not reset ETH port GID table for slave %d, port %d (%d)\n", | |
1233 | slave, i + 1, err); | |
1234 | } | |
1235 | } | |
1236 | ||
1237 | mlx4_free_cmd_mailbox(dev, mailbox); | |
1238 | return; | |
1239 | } | |
1240 | ||
1241 | static int mlx4_common_set_port(struct mlx4_dev *dev, int slave, u32 in_mod, | |
1242 | u8 op_mod, struct mlx4_cmd_mailbox *inbox) | |
1243 | { | |
1244 | struct mlx4_priv *priv = mlx4_priv(dev); | |
1245 | struct mlx4_port_info *port_info; | |
1246 | struct mlx4_mfunc_master_ctx *master = &priv->mfunc.master; | |
1247 | struct mlx4_slave_state *slave_st = &master->slave_state[slave]; | |
1248 | struct mlx4_set_port_rqp_calc_context *qpn_context; | |
1249 | struct mlx4_set_port_general_context *gen_context; | |
1250 | struct mlx4_roce_gid_entry *gid_entry_tbl, *gid_entry_mbox, *gid_entry_mb1; | |
1251 | int reset_qkey_viols; | |
1252 | int port; | |
1253 | int is_eth; | |
1254 | int num_gids; | |
1255 | int base; | |
1256 | u32 in_modifier; | |
1257 | u32 promisc; | |
1258 | u16 mtu, prev_mtu; | |
1259 | int err; | |
1260 | int i, j; | |
1261 | int offset; | |
1262 | __be32 agg_cap_mask; | |
1263 | __be32 slave_cap_mask; | |
1264 | __be32 new_cap_mask; | |
1265 | ||
1266 | port = in_mod & 0xff; | |
1267 | in_modifier = in_mod >> 8; | |
1268 | is_eth = op_mod; | |
1269 | port_info = &priv->port[port]; | |
1270 | ||
1271 | /* Slaves cannot perform SET_PORT operations except changing MTU */ | |
1272 | if (is_eth) { | |
1273 | if (slave != dev->caps.function && | |
1274 | in_modifier != MLX4_SET_PORT_GENERAL && | |
1275 | in_modifier != MLX4_SET_PORT_GID_TABLE) { | |
1276 | mlx4_warn(dev, "denying SET_PORT for slave:%d\n", | |
1277 | slave); | |
1278 | return -EINVAL; | |
1279 | } | |
1280 | switch (in_modifier) { | |
1281 | case MLX4_SET_PORT_RQP_CALC: | |
1282 | qpn_context = inbox->buf; | |
1283 | qpn_context->base_qpn = | |
1284 | cpu_to_be32(port_info->base_qpn); | |
1285 | qpn_context->n_mac = 0x7; | |
1286 | promisc = be32_to_cpu(qpn_context->promisc) >> | |
1287 | SET_PORT_PROMISC_SHIFT; | |
1288 | qpn_context->promisc = cpu_to_be32( | |
1289 | promisc << SET_PORT_PROMISC_SHIFT | | |
1290 | port_info->base_qpn); | |
1291 | promisc = be32_to_cpu(qpn_context->mcast) >> | |
1292 | SET_PORT_MC_PROMISC_SHIFT; | |
1293 | qpn_context->mcast = cpu_to_be32( | |
1294 | promisc << SET_PORT_MC_PROMISC_SHIFT | | |
1295 | port_info->base_qpn); | |
1296 | break; | |
1297 | case MLX4_SET_PORT_GENERAL: | |
1298 | gen_context = inbox->buf; | |
1299 | /* Mtu is configured as the max MTU among all the | |
1300 | * the functions on the port. */ | |
1301 | mtu = be16_to_cpu(gen_context->mtu); | |
1302 | mtu = min_t(int, mtu, dev->caps.eth_mtu_cap[port] + | |
1303 | ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN); | |
1304 | prev_mtu = slave_st->mtu[port]; | |
1305 | slave_st->mtu[port] = mtu; | |
1306 | if (mtu > master->max_mtu[port]) | |
1307 | master->max_mtu[port] = mtu; | |
1308 | if (mtu < prev_mtu && prev_mtu == | |
1309 | master->max_mtu[port]) { | |
1310 | slave_st->mtu[port] = mtu; | |
1311 | master->max_mtu[port] = mtu; | |
1312 | for (i = 0; i < dev->num_slaves; i++) { | |
1313 | master->max_mtu[port] = | |
1314 | max(master->max_mtu[port], | |
1315 | master->slave_state[i].mtu[port]); | |
1316 | } | |
1317 | } | |
1318 | ||
1319 | gen_context->mtu = cpu_to_be16(master->max_mtu[port]); | |
1320 | /* Slave cannot change Global Pause configuration */ | |
1321 | if (slave != mlx4_master_func_num(dev) && | |
1322 | ((gen_context->pptx != master->pptx) || | |
1323 | (gen_context->pprx != master->pprx))) { | |
1324 | gen_context->pptx = master->pptx; | |
1325 | gen_context->pprx = master->pprx; | |
1326 | mlx4_warn(dev, | |
1327 | "denying Global Pause change for slave:%d\n", | |
1328 | slave); | |
1329 | } else { | |
1330 | master->pptx = gen_context->pptx; | |
1331 | master->pprx = gen_context->pprx; | |
1332 | } | |
1333 | break; | |
1334 | case MLX4_SET_PORT_GID_TABLE: | |
1335 | /* change to MULTIPLE entries: number of guest's gids | |
1336 | * need a FOR-loop here over number of gids the guest has. | |
1337 | * 1. Check no duplicates in gids passed by slave | |
1338 | */ | |
1339 | num_gids = mlx4_get_slave_num_gids(dev, slave, port); | |
1340 | base = mlx4_get_base_gid_ix(dev, slave, port); | |
1341 | gid_entry_mbox = (struct mlx4_roce_gid_entry *)(inbox->buf); | |
1342 | for (i = 0; i < num_gids; gid_entry_mbox++, i++) { | |
1343 | if (!memcmp(gid_entry_mbox->raw, zgid_entry.raw, | |
1344 | sizeof(zgid_entry))) | |
1345 | continue; | |
1346 | gid_entry_mb1 = gid_entry_mbox + 1; | |
1347 | for (j = i + 1; j < num_gids; gid_entry_mb1++, j++) { | |
1348 | if (!memcmp(gid_entry_mb1->raw, | |
1349 | zgid_entry.raw, sizeof(zgid_entry))) | |
1350 | continue; | |
1351 | if (!memcmp(gid_entry_mb1->raw, gid_entry_mbox->raw, | |
1352 | sizeof(gid_entry_mbox->raw))) { | |
1353 | /* found duplicate */ | |
1354 | return -EINVAL; | |
1355 | } | |
1356 | } | |
1357 | } | |
1358 | ||
1359 | /* 2. Check that do not have duplicates in OTHER | |
1360 | * entries in the port GID table | |
1361 | */ | |
1362 | ||
1363 | mutex_lock(&(priv->port[port].gid_table.mutex)); | |
1364 | for (i = 0; i < MLX4_ROCE_MAX_GIDS; i++) { | |
1365 | if (i >= base && i < base + num_gids) | |
1366 | continue; /* don't compare to slave's current gids */ | |
1367 | gid_entry_tbl = &priv->port[port].gid_table.roce_gids[i]; | |
1368 | if (!memcmp(gid_entry_tbl->raw, zgid_entry.raw, sizeof(zgid_entry))) | |
1369 | continue; | |
1370 | gid_entry_mbox = (struct mlx4_roce_gid_entry *)(inbox->buf); | |
1371 | for (j = 0; j < num_gids; gid_entry_mbox++, j++) { | |
1372 | if (!memcmp(gid_entry_mbox->raw, zgid_entry.raw, | |
1373 | sizeof(zgid_entry))) | |
1374 | continue; | |
1375 | if (!memcmp(gid_entry_mbox->raw, gid_entry_tbl->raw, | |
1376 | sizeof(gid_entry_tbl->raw))) { | |
1377 | /* found duplicate */ | |
1378 | mlx4_warn(dev, "requested gid entry for slave:%d is a duplicate of gid at index %d\n", | |
1379 | slave, i); | |
1380 | mutex_unlock(&(priv->port[port].gid_table.mutex)); | |
1381 | return -EINVAL; | |
1382 | } | |
1383 | } | |
1384 | } | |
1385 | ||
1386 | /* insert slave GIDs with memcpy, starting at slave's base index */ | |
1387 | gid_entry_mbox = (struct mlx4_roce_gid_entry *)(inbox->buf); | |
1388 | for (i = 0, offset = base; i < num_gids; gid_entry_mbox++, offset++, i++) | |
1389 | memcpy(priv->port[port].gid_table.roce_gids[offset].raw, | |
1390 | gid_entry_mbox->raw, MLX4_ROCE_GID_ENTRY_SIZE); | |
1391 | ||
1392 | /* Now, copy roce port gids table to current mailbox for passing to FW */ | |
1393 | gid_entry_mbox = (struct mlx4_roce_gid_entry *)(inbox->buf); | |
1394 | for (i = 0; i < MLX4_ROCE_MAX_GIDS; gid_entry_mbox++, i++) | |
1395 | memcpy(gid_entry_mbox->raw, | |
1396 | priv->port[port].gid_table.roce_gids[i].raw, | |
1397 | MLX4_ROCE_GID_ENTRY_SIZE); | |
1398 | ||
1399 | err = mlx4_cmd(dev, inbox->dma, in_mod & 0xffff, op_mod, | |
1400 | MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B, | |
1401 | MLX4_CMD_NATIVE); | |
1402 | mutex_unlock(&(priv->port[port].gid_table.mutex)); | |
1403 | return err; | |
1404 | } | |
1405 | ||
1406 | return mlx4_cmd(dev, inbox->dma, in_mod & 0xffff, op_mod, | |
1407 | MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B, | |
1408 | MLX4_CMD_NATIVE); | |
1409 | } | |
1410 | ||
1411 | /* Slaves are not allowed to SET_PORT beacon (LED) blink */ | |
1412 | if (op_mod == MLX4_SET_PORT_BEACON_OPCODE) { | |
1413 | mlx4_warn(dev, "denying SET_PORT Beacon slave:%d\n", slave); | |
1414 | return -EPERM; | |
1415 | } | |
1416 | ||
1417 | /* For IB, we only consider: | |
1418 | * - The capability mask, which is set to the aggregate of all | |
1419 | * slave function capabilities | |
1420 | * - The QKey violatin counter - reset according to each request. | |
1421 | */ | |
1422 | ||
1423 | if (dev->flags & MLX4_FLAG_OLD_PORT_CMDS) { | |
1424 | reset_qkey_viols = (*(u8 *) inbox->buf) & 0x40; | |
1425 | new_cap_mask = ((__be32 *) inbox->buf)[2]; | |
1426 | } else { | |
1427 | reset_qkey_viols = ((u8 *) inbox->buf)[3] & 0x1; | |
1428 | new_cap_mask = ((__be32 *) inbox->buf)[1]; | |
1429 | } | |
1430 | ||
1431 | /* slave may not set the IS_SM capability for the port */ | |
1432 | if (slave != mlx4_master_func_num(dev) && | |
1433 | (be32_to_cpu(new_cap_mask) & MLX4_PORT_CAP_IS_SM)) | |
1434 | return -EINVAL; | |
1435 | ||
1436 | /* No DEV_MGMT in multifunc mode */ | |
1437 | if (mlx4_is_mfunc(dev) && | |
1438 | (be32_to_cpu(new_cap_mask) & MLX4_PORT_CAP_DEV_MGMT_SUP)) | |
1439 | return -EINVAL; | |
1440 | ||
1441 | agg_cap_mask = 0; | |
1442 | slave_cap_mask = | |
1443 | priv->mfunc.master.slave_state[slave].ib_cap_mask[port]; | |
1444 | priv->mfunc.master.slave_state[slave].ib_cap_mask[port] = new_cap_mask; | |
1445 | for (i = 0; i < dev->num_slaves; i++) | |
1446 | agg_cap_mask |= | |
1447 | priv->mfunc.master.slave_state[i].ib_cap_mask[port]; | |
1448 | ||
1449 | /* only clear mailbox for guests. Master may be setting | |
1450 | * MTU or PKEY table size | |
1451 | */ | |
1452 | if (slave != dev->caps.function) | |
1453 | memset(inbox->buf, 0, 256); | |
1454 | if (dev->flags & MLX4_FLAG_OLD_PORT_CMDS) { | |
1455 | *(u8 *) inbox->buf |= !!reset_qkey_viols << 6; | |
1456 | ((__be32 *) inbox->buf)[2] = agg_cap_mask; | |
1457 | } else { | |
1458 | ((u8 *) inbox->buf)[3] |= !!reset_qkey_viols; | |
1459 | ((__be32 *) inbox->buf)[1] = agg_cap_mask; | |
1460 | } | |
1461 | ||
1462 | err = mlx4_cmd(dev, inbox->dma, port, is_eth, MLX4_CMD_SET_PORT, | |
1463 | MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE); | |
1464 | if (err) | |
1465 | priv->mfunc.master.slave_state[slave].ib_cap_mask[port] = | |
1466 | slave_cap_mask; | |
1467 | return err; | |
1468 | } | |
1469 | ||
1470 | int mlx4_SET_PORT_wrapper(struct mlx4_dev *dev, int slave, | |
1471 | struct mlx4_vhcr *vhcr, | |
1472 | struct mlx4_cmd_mailbox *inbox, | |
1473 | struct mlx4_cmd_mailbox *outbox, | |
1474 | struct mlx4_cmd_info *cmd) | |
1475 | { | |
1476 | int port = mlx4_slave_convert_port( | |
1477 | dev, slave, vhcr->in_modifier & 0xFF); | |
1478 | ||
1479 | if (port < 0) | |
1480 | return -EINVAL; | |
1481 | ||
1482 | vhcr->in_modifier = (vhcr->in_modifier & ~0xFF) | | |
1483 | (port & 0xFF); | |
1484 | ||
1485 | return mlx4_common_set_port(dev, slave, vhcr->in_modifier, | |
1486 | vhcr->op_modifier, inbox); | |
1487 | } | |
1488 | ||
1489 | /* bit locations for set port command with zero op modifier */ | |
1490 | enum { | |
1491 | MLX4_SET_PORT_VL_CAP = 4, /* bits 7:4 */ | |
1492 | MLX4_SET_PORT_MTU_CAP = 12, /* bits 15:12 */ | |
1493 | MLX4_CHANGE_PORT_PKEY_TBL_SZ = 20, | |
1494 | MLX4_CHANGE_PORT_VL_CAP = 21, | |
1495 | MLX4_CHANGE_PORT_MTU_CAP = 22, | |
1496 | }; | |
1497 | ||
1498 | int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port, int pkey_tbl_sz) | |
1499 | { | |
1500 | struct mlx4_cmd_mailbox *mailbox; | |
1501 | int err, vl_cap, pkey_tbl_flag = 0; | |
1502 | ||
1503 | if (dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH) | |
1504 | return 0; | |
1505 | ||
1506 | mailbox = mlx4_alloc_cmd_mailbox(dev); | |
1507 | if (IS_ERR(mailbox)) | |
1508 | return PTR_ERR(mailbox); | |
1509 | ||
1510 | ((__be32 *) mailbox->buf)[1] = dev->caps.ib_port_def_cap[port]; | |
1511 | ||
1512 | if (pkey_tbl_sz >= 0 && mlx4_is_master(dev)) { | |
1513 | pkey_tbl_flag = 1; | |
1514 | ((__be16 *) mailbox->buf)[20] = cpu_to_be16(pkey_tbl_sz); | |
1515 | } | |
1516 | ||
1517 | /* IB VL CAP enum isn't used by the firmware, just numerical values */ | |
1518 | for (vl_cap = 8; vl_cap >= 1; vl_cap >>= 1) { | |
1519 | ((__be32 *) mailbox->buf)[0] = cpu_to_be32( | |
1520 | (1 << MLX4_CHANGE_PORT_MTU_CAP) | | |
1521 | (1 << MLX4_CHANGE_PORT_VL_CAP) | | |
1522 | (pkey_tbl_flag << MLX4_CHANGE_PORT_PKEY_TBL_SZ) | | |
1523 | (dev->caps.port_ib_mtu[port] << MLX4_SET_PORT_MTU_CAP) | | |
1524 | (vl_cap << MLX4_SET_PORT_VL_CAP)); | |
1525 | err = mlx4_cmd(dev, mailbox->dma, port, | |
1526 | MLX4_SET_PORT_IB_OPCODE, MLX4_CMD_SET_PORT, | |
1527 | MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED); | |
1528 | if (err != -ENOMEM) | |
1529 | break; | |
1530 | } | |
1531 | ||
1532 | mlx4_free_cmd_mailbox(dev, mailbox); | |
1533 | return err; | |
1534 | } | |
1535 | ||
1536 | #define SET_PORT_ROCE_2_FLAGS 0x10 | |
1537 | #define MLX4_SET_PORT_ROCE_V1_V2 0x2 | |
1538 | int mlx4_SET_PORT_general(struct mlx4_dev *dev, u8 port, int mtu, | |
1539 | u8 pptx, u8 pfctx, u8 pprx, u8 pfcrx) | |
1540 | { | |
1541 | struct mlx4_cmd_mailbox *mailbox; | |
1542 | struct mlx4_set_port_general_context *context; | |
1543 | int err; | |
1544 | u32 in_mod; | |
1545 | ||
1546 | mailbox = mlx4_alloc_cmd_mailbox(dev); | |
1547 | if (IS_ERR(mailbox)) | |
1548 | return PTR_ERR(mailbox); | |
1549 | context = mailbox->buf; | |
1550 | context->flags = SET_PORT_GEN_ALL_VALID; | |
1551 | context->mtu = cpu_to_be16(mtu); | |
1552 | context->pptx = (pptx * (!pfctx)) << 7; | |
1553 | context->pfctx = pfctx; | |
1554 | context->pprx = (pprx * (!pfcrx)) << 7; | |
1555 | context->pfcrx = pfcrx; | |
1556 | ||
1557 | if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ROCE_V1_V2) { | |
1558 | context->flags |= SET_PORT_ROCE_2_FLAGS; | |
1559 | context->roce_mode |= | |
1560 | MLX4_SET_PORT_ROCE_V1_V2 << 4; | |
1561 | } | |
1562 | in_mod = MLX4_SET_PORT_GENERAL << 8 | port; | |
1563 | err = mlx4_cmd(dev, mailbox->dma, in_mod, MLX4_SET_PORT_ETH_OPCODE, | |
1564 | MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B, | |
1565 | MLX4_CMD_WRAPPED); | |
1566 | ||
1567 | mlx4_free_cmd_mailbox(dev, mailbox); | |
1568 | return err; | |
1569 | } | |
1570 | EXPORT_SYMBOL(mlx4_SET_PORT_general); | |
1571 | ||
1572 | int mlx4_SET_PORT_qpn_calc(struct mlx4_dev *dev, u8 port, u32 base_qpn, | |
1573 | u8 promisc) | |
1574 | { | |
1575 | struct mlx4_cmd_mailbox *mailbox; | |
1576 | struct mlx4_set_port_rqp_calc_context *context; | |
1577 | int err; | |
1578 | u32 in_mod; | |
1579 | u32 m_promisc = (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER) ? | |
1580 | MCAST_DIRECT : MCAST_DEFAULT; | |
1581 | ||
1582 | if (dev->caps.steering_mode != MLX4_STEERING_MODE_A0) | |
1583 | return 0; | |
1584 | ||
1585 | mailbox = mlx4_alloc_cmd_mailbox(dev); | |
1586 | if (IS_ERR(mailbox)) | |
1587 | return PTR_ERR(mailbox); | |
1588 | context = mailbox->buf; | |
1589 | context->base_qpn = cpu_to_be32(base_qpn); | |
1590 | context->n_mac = dev->caps.log_num_macs; | |
1591 | context->promisc = cpu_to_be32(promisc << SET_PORT_PROMISC_SHIFT | | |
1592 | base_qpn); | |
1593 | context->mcast = cpu_to_be32(m_promisc << SET_PORT_MC_PROMISC_SHIFT | | |
1594 | base_qpn); | |
1595 | context->intra_no_vlan = 0; | |
1596 | context->no_vlan = MLX4_NO_VLAN_IDX; | |
1597 | context->intra_vlan_miss = 0; | |
1598 | context->vlan_miss = MLX4_VLAN_MISS_IDX; | |
1599 | ||
1600 | in_mod = MLX4_SET_PORT_RQP_CALC << 8 | port; | |
1601 | err = mlx4_cmd(dev, mailbox->dma, in_mod, MLX4_SET_PORT_ETH_OPCODE, | |
1602 | MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B, | |
1603 | MLX4_CMD_WRAPPED); | |
1604 | ||
1605 | mlx4_free_cmd_mailbox(dev, mailbox); | |
1606 | return err; | |
1607 | } | |
1608 | EXPORT_SYMBOL(mlx4_SET_PORT_qpn_calc); | |
1609 | ||
1610 | int mlx4_SET_PORT_fcs_check(struct mlx4_dev *dev, u8 port, u8 ignore_fcs_value) | |
1611 | { | |
1612 | struct mlx4_cmd_mailbox *mailbox; | |
1613 | struct mlx4_set_port_general_context *context; | |
1614 | u32 in_mod; | |
1615 | int err; | |
1616 | ||
1617 | mailbox = mlx4_alloc_cmd_mailbox(dev); | |
1618 | if (IS_ERR(mailbox)) | |
1619 | return PTR_ERR(mailbox); | |
1620 | context = mailbox->buf; | |
1621 | context->v_ignore_fcs |= MLX4_FLAG_V_IGNORE_FCS_MASK; | |
1622 | if (ignore_fcs_value) | |
1623 | context->ignore_fcs |= MLX4_IGNORE_FCS_MASK; | |
1624 | else | |
1625 | context->ignore_fcs &= ~MLX4_IGNORE_FCS_MASK; | |
1626 | ||
1627 | in_mod = MLX4_SET_PORT_GENERAL << 8 | port; | |
1628 | err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT, | |
1629 | MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE); | |
1630 | ||
1631 | mlx4_free_cmd_mailbox(dev, mailbox); | |
1632 | return err; | |
1633 | } | |
1634 | EXPORT_SYMBOL(mlx4_SET_PORT_fcs_check); | |
1635 | ||
1636 | enum { | |
1637 | VXLAN_ENABLE_MODIFY = 1 << 7, | |
1638 | VXLAN_STEERING_MODIFY = 1 << 6, | |
1639 | ||
1640 | VXLAN_ENABLE = 1 << 7, | |
1641 | }; | |
1642 | ||
1643 | struct mlx4_set_port_vxlan_context { | |
1644 | u32 reserved1; | |
1645 | u8 modify_flags; | |
1646 | u8 reserved2; | |
1647 | u8 enable_flags; | |
1648 | u8 steering; | |
1649 | }; | |
1650 | ||
1651 | int mlx4_SET_PORT_VXLAN(struct mlx4_dev *dev, u8 port, u8 steering, int enable) | |
1652 | { | |
1653 | int err; | |
1654 | u32 in_mod; | |
1655 | struct mlx4_cmd_mailbox *mailbox; | |
1656 | struct mlx4_set_port_vxlan_context *context; | |
1657 | ||
1658 | mailbox = mlx4_alloc_cmd_mailbox(dev); | |
1659 | if (IS_ERR(mailbox)) | |
1660 | return PTR_ERR(mailbox); | |
1661 | context = mailbox->buf; | |
1662 | memset(context, 0, sizeof(*context)); | |
1663 | ||
1664 | context->modify_flags = VXLAN_ENABLE_MODIFY | VXLAN_STEERING_MODIFY; | |
1665 | if (enable) | |
1666 | context->enable_flags = VXLAN_ENABLE; | |
1667 | context->steering = steering; | |
1668 | ||
1669 | in_mod = MLX4_SET_PORT_VXLAN << 8 | port; | |
1670 | err = mlx4_cmd(dev, mailbox->dma, in_mod, MLX4_SET_PORT_ETH_OPCODE, | |
1671 | MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B, | |
1672 | MLX4_CMD_NATIVE); | |
1673 | ||
1674 | mlx4_free_cmd_mailbox(dev, mailbox); | |
1675 | return err; | |
1676 | } | |
1677 | EXPORT_SYMBOL(mlx4_SET_PORT_VXLAN); | |
1678 | ||
1679 | int mlx4_SET_PORT_BEACON(struct mlx4_dev *dev, u8 port, u16 time) | |
1680 | { | |
1681 | int err; | |
1682 | struct mlx4_cmd_mailbox *mailbox; | |
1683 | ||
1684 | mailbox = mlx4_alloc_cmd_mailbox(dev); | |
1685 | if (IS_ERR(mailbox)) | |
1686 | return PTR_ERR(mailbox); | |
1687 | ||
1688 | *((__be32 *)mailbox->buf) = cpu_to_be32(time); | |
1689 | ||
1690 | err = mlx4_cmd(dev, mailbox->dma, port, MLX4_SET_PORT_BEACON_OPCODE, | |
1691 | MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B, | |
1692 | MLX4_CMD_NATIVE); | |
1693 | ||
1694 | mlx4_free_cmd_mailbox(dev, mailbox); | |
1695 | return err; | |
1696 | } | |
1697 | EXPORT_SYMBOL(mlx4_SET_PORT_BEACON); | |
1698 | ||
1699 | int mlx4_SET_MCAST_FLTR_wrapper(struct mlx4_dev *dev, int slave, | |
1700 | struct mlx4_vhcr *vhcr, | |
1701 | struct mlx4_cmd_mailbox *inbox, | |
1702 | struct mlx4_cmd_mailbox *outbox, | |
1703 | struct mlx4_cmd_info *cmd) | |
1704 | { | |
1705 | int err = 0; | |
1706 | ||
1707 | return err; | |
1708 | } | |
1709 | ||
1710 | int mlx4_SET_MCAST_FLTR(struct mlx4_dev *dev, u8 port, | |
1711 | u64 mac, u64 clear, u8 mode) | |
1712 | { | |
1713 | return mlx4_cmd(dev, (mac | (clear << 63)), port, mode, | |
1714 | MLX4_CMD_SET_MCAST_FLTR, MLX4_CMD_TIME_CLASS_B, | |
1715 | MLX4_CMD_WRAPPED); | |
1716 | } | |
1717 | EXPORT_SYMBOL(mlx4_SET_MCAST_FLTR); | |
1718 | ||
1719 | int mlx4_SET_VLAN_FLTR_wrapper(struct mlx4_dev *dev, int slave, | |
1720 | struct mlx4_vhcr *vhcr, | |
1721 | struct mlx4_cmd_mailbox *inbox, | |
1722 | struct mlx4_cmd_mailbox *outbox, | |
1723 | struct mlx4_cmd_info *cmd) | |
1724 | { | |
1725 | int err = 0; | |
1726 | ||
1727 | return err; | |
1728 | } | |
1729 | ||
1730 | int mlx4_common_dump_eth_stats(struct mlx4_dev *dev, int slave, | |
1731 | u32 in_mod, struct mlx4_cmd_mailbox *outbox) | |
1732 | { | |
1733 | return mlx4_cmd_box(dev, 0, outbox->dma, in_mod, 0, | |
1734 | MLX4_CMD_DUMP_ETH_STATS, MLX4_CMD_TIME_CLASS_B, | |
1735 | MLX4_CMD_NATIVE); | |
1736 | } | |
1737 | ||
1738 | int mlx4_DUMP_ETH_STATS_wrapper(struct mlx4_dev *dev, int slave, | |
1739 | struct mlx4_vhcr *vhcr, | |
1740 | struct mlx4_cmd_mailbox *inbox, | |
1741 | struct mlx4_cmd_mailbox *outbox, | |
1742 | struct mlx4_cmd_info *cmd) | |
1743 | { | |
1744 | if (slave != dev->caps.function) | |
1745 | return 0; | |
1746 | return mlx4_common_dump_eth_stats(dev, slave, | |
1747 | vhcr->in_modifier, outbox); | |
1748 | } | |
1749 | ||
1750 | int mlx4_get_slave_from_roce_gid(struct mlx4_dev *dev, int port, u8 *gid, | |
1751 | int *slave_id) | |
1752 | { | |
1753 | struct mlx4_priv *priv = mlx4_priv(dev); | |
1754 | int i, found_ix = -1; | |
1755 | int vf_gids = MLX4_ROCE_MAX_GIDS - MLX4_ROCE_PF_GIDS; | |
1756 | struct mlx4_slaves_pport slaves_pport; | |
1757 | unsigned num_vfs; | |
1758 | int slave_gid; | |
1759 | ||
1760 | if (!mlx4_is_mfunc(dev)) | |
1761 | return -EINVAL; | |
1762 | ||
1763 | slaves_pport = mlx4_phys_to_slaves_pport(dev, port); | |
1764 | num_vfs = bitmap_weight(slaves_pport.slaves, | |
1765 | dev->persist->num_vfs + 1) - 1; | |
1766 | ||
1767 | for (i = 0; i < MLX4_ROCE_MAX_GIDS; i++) { | |
1768 | if (!memcmp(priv->port[port].gid_table.roce_gids[i].raw, gid, | |
1769 | MLX4_ROCE_GID_ENTRY_SIZE)) { | |
1770 | found_ix = i; | |
1771 | break; | |
1772 | } | |
1773 | } | |
1774 | ||
1775 | if (found_ix >= 0) { | |
1776 | /* Calculate a slave_gid which is the slave number in the gid | |
1777 | * table and not a globally unique slave number. | |
1778 | */ | |
1779 | if (found_ix < MLX4_ROCE_PF_GIDS) | |
1780 | slave_gid = 0; | |
1781 | else if (found_ix < MLX4_ROCE_PF_GIDS + (vf_gids % num_vfs) * | |
1782 | (vf_gids / num_vfs + 1)) | |
1783 | slave_gid = ((found_ix - MLX4_ROCE_PF_GIDS) / | |
1784 | (vf_gids / num_vfs + 1)) + 1; | |
1785 | else | |
1786 | slave_gid = | |
1787 | ((found_ix - MLX4_ROCE_PF_GIDS - | |
1788 | ((vf_gids % num_vfs) * ((vf_gids / num_vfs + 1)))) / | |
1789 | (vf_gids / num_vfs)) + vf_gids % num_vfs + 1; | |
1790 | ||
1791 | /* Calculate the globally unique slave id */ | |
1792 | if (slave_gid) { | |
1793 | struct mlx4_active_ports exclusive_ports; | |
1794 | struct mlx4_active_ports actv_ports; | |
1795 | struct mlx4_slaves_pport slaves_pport_actv; | |
1796 | unsigned max_port_p_one; | |
1797 | int num_vfs_before = 0; | |
1798 | int candidate_slave_gid; | |
1799 | ||
1800 | /* Calculate how many VFs are on the previous port, if exists */ | |
1801 | for (i = 1; i < port; i++) { | |
1802 | bitmap_zero(exclusive_ports.ports, dev->caps.num_ports); | |
1803 | set_bit(i - 1, exclusive_ports.ports); | |
1804 | slaves_pport_actv = | |
1805 | mlx4_phys_to_slaves_pport_actv( | |
1806 | dev, &exclusive_ports); | |
1807 | num_vfs_before += bitmap_weight( | |
1808 | slaves_pport_actv.slaves, | |
1809 | dev->persist->num_vfs + 1); | |
1810 | } | |
1811 | ||
1812 | /* candidate_slave_gid isn't necessarily the correct slave, but | |
1813 | * it has the same number of ports and is assigned to the same | |
1814 | * ports as the real slave we're looking for. On dual port VF, | |
1815 | * slave_gid = [single port VFs on port <port>] + | |
1816 | * [offset of the current slave from the first dual port VF] + | |
1817 | * 1 (for the PF). | |
1818 | */ | |
1819 | candidate_slave_gid = slave_gid + num_vfs_before; | |
1820 | ||
1821 | actv_ports = mlx4_get_active_ports(dev, candidate_slave_gid); | |
1822 | max_port_p_one = find_first_bit( | |
1823 | actv_ports.ports, dev->caps.num_ports) + | |
1824 | bitmap_weight(actv_ports.ports, | |
1825 | dev->caps.num_ports) + 1; | |
1826 | ||
1827 | /* Calculate the real slave number */ | |
1828 | for (i = 1; i < max_port_p_one; i++) { | |
1829 | if (i == port) | |
1830 | continue; | |
1831 | bitmap_zero(exclusive_ports.ports, | |
1832 | dev->caps.num_ports); | |
1833 | set_bit(i - 1, exclusive_ports.ports); | |
1834 | slaves_pport_actv = | |
1835 | mlx4_phys_to_slaves_pport_actv( | |
1836 | dev, &exclusive_ports); | |
1837 | slave_gid += bitmap_weight( | |
1838 | slaves_pport_actv.slaves, | |
1839 | dev->persist->num_vfs + 1); | |
1840 | } | |
1841 | } | |
1842 | *slave_id = slave_gid; | |
1843 | } | |
1844 | ||
1845 | return (found_ix >= 0) ? 0 : -EINVAL; | |
1846 | } | |
1847 | EXPORT_SYMBOL(mlx4_get_slave_from_roce_gid); | |
1848 | ||
1849 | int mlx4_get_roce_gid_from_slave(struct mlx4_dev *dev, int port, int slave_id, | |
1850 | u8 *gid) | |
1851 | { | |
1852 | struct mlx4_priv *priv = mlx4_priv(dev); | |
1853 | ||
1854 | if (!mlx4_is_master(dev)) | |
1855 | return -EINVAL; | |
1856 | ||
1857 | memcpy(gid, priv->port[port].gid_table.roce_gids[slave_id].raw, | |
1858 | MLX4_ROCE_GID_ENTRY_SIZE); | |
1859 | return 0; | |
1860 | } | |
1861 | EXPORT_SYMBOL(mlx4_get_roce_gid_from_slave); | |
1862 | ||
1863 | /* Cable Module Info */ | |
1864 | #define MODULE_INFO_MAX_READ 48 | |
1865 | ||
1866 | #define I2C_ADDR_LOW 0x50 | |
1867 | #define I2C_ADDR_HIGH 0x51 | |
1868 | #define I2C_PAGE_SIZE 256 | |
1869 | ||
1870 | /* Module Info Data */ | |
1871 | struct mlx4_cable_info { | |
1872 | u8 i2c_addr; | |
1873 | u8 page_num; | |
1874 | __be16 dev_mem_address; | |
1875 | __be16 reserved1; | |
1876 | __be16 size; | |
1877 | __be32 reserved2[2]; | |
1878 | u8 data[MODULE_INFO_MAX_READ]; | |
1879 | }; | |
1880 | ||
1881 | enum cable_info_err { | |
1882 | CABLE_INF_INV_PORT = 0x1, | |
1883 | CABLE_INF_OP_NOSUP = 0x2, | |
1884 | CABLE_INF_NOT_CONN = 0x3, | |
1885 | CABLE_INF_NO_EEPRM = 0x4, | |
1886 | CABLE_INF_PAGE_ERR = 0x5, | |
1887 | CABLE_INF_INV_ADDR = 0x6, | |
1888 | CABLE_INF_I2C_ADDR = 0x7, | |
1889 | CABLE_INF_QSFP_VIO = 0x8, | |
1890 | CABLE_INF_I2C_BUSY = 0x9, | |
1891 | }; | |
1892 | ||
1893 | #define MAD_STATUS_2_CABLE_ERR(mad_status) ((mad_status >> 8) & 0xFF) | |
1894 | ||
1895 | static inline const char *cable_info_mad_err_str(u16 mad_status) | |
1896 | { | |
1897 | u8 err = MAD_STATUS_2_CABLE_ERR(mad_status); | |
1898 | ||
1899 | switch (err) { | |
1900 | case CABLE_INF_INV_PORT: | |
1901 | return "invalid port selected"; | |
1902 | case CABLE_INF_OP_NOSUP: | |
1903 | return "operation not supported for this port (the port is of type CX4 or internal)"; | |
1904 | case CABLE_INF_NOT_CONN: | |
1905 | return "cable is not connected"; | |
1906 | case CABLE_INF_NO_EEPRM: | |
1907 | return "the connected cable has no EPROM (passive copper cable)"; | |
1908 | case CABLE_INF_PAGE_ERR: | |
1909 | return "page number is greater than 15"; | |
1910 | case CABLE_INF_INV_ADDR: | |
1911 | return "invalid device_address or size (that is, size equals 0 or address+size is greater than 256)"; | |
1912 | case CABLE_INF_I2C_ADDR: | |
1913 | return "invalid I2C slave address"; | |
1914 | case CABLE_INF_QSFP_VIO: | |
1915 | return "at least one cable violates the QSFP specification and ignores the modsel signal"; | |
1916 | case CABLE_INF_I2C_BUSY: | |
1917 | return "I2C bus is constantly busy"; | |
1918 | } | |
1919 | return "Unknown Error"; | |
1920 | } | |
1921 | ||
1922 | /** | |
1923 | * mlx4_get_module_info - Read cable module eeprom data | |
1924 | * @dev: mlx4_dev. | |
1925 | * @port: port number. | |
1926 | * @offset: byte offset in eeprom to start reading data from. | |
1927 | * @size: num of bytes to read. | |
1928 | * @data: output buffer to put the requested data into. | |
1929 | * | |
1930 | * Reads cable module eeprom data, puts the outcome data into | |
1931 | * data pointer paramer. | |
1932 | * Returns num of read bytes on success or a negative error | |
1933 | * code. | |
1934 | */ | |
1935 | int mlx4_get_module_info(struct mlx4_dev *dev, u8 port, | |
1936 | u16 offset, u16 size, u8 *data) | |
1937 | { | |
1938 | struct mlx4_cmd_mailbox *inbox, *outbox; | |
1939 | struct mlx4_mad_ifc *inmad, *outmad; | |
1940 | struct mlx4_cable_info *cable_info; | |
1941 | u16 i2c_addr; | |
1942 | int ret; | |
1943 | ||
1944 | if (size > MODULE_INFO_MAX_READ) | |
1945 | size = MODULE_INFO_MAX_READ; | |
1946 | ||
1947 | inbox = mlx4_alloc_cmd_mailbox(dev); | |
1948 | if (IS_ERR(inbox)) | |
1949 | return PTR_ERR(inbox); | |
1950 | ||
1951 | outbox = mlx4_alloc_cmd_mailbox(dev); | |
1952 | if (IS_ERR(outbox)) { | |
1953 | mlx4_free_cmd_mailbox(dev, inbox); | |
1954 | return PTR_ERR(outbox); | |
1955 | } | |
1956 | ||
1957 | inmad = (struct mlx4_mad_ifc *)(inbox->buf); | |
1958 | outmad = (struct mlx4_mad_ifc *)(outbox->buf); | |
1959 | ||
1960 | inmad->method = 0x1; /* Get */ | |
1961 | inmad->class_version = 0x1; | |
1962 | inmad->mgmt_class = 0x1; | |
1963 | inmad->base_version = 0x1; | |
1964 | inmad->attr_id = cpu_to_be16(0xFF60); /* Module Info */ | |
1965 | ||
1966 | if (offset < I2C_PAGE_SIZE && offset + size > I2C_PAGE_SIZE) | |
1967 | /* Cross pages reads are not allowed | |
1968 | * read until offset 256 in low page | |
1969 | */ | |
1970 | size -= offset + size - I2C_PAGE_SIZE; | |
1971 | ||
1972 | i2c_addr = I2C_ADDR_LOW; | |
1973 | if (offset >= I2C_PAGE_SIZE) { | |
1974 | /* Reset offset to high page */ | |
1975 | i2c_addr = I2C_ADDR_HIGH; | |
1976 | offset -= I2C_PAGE_SIZE; | |
1977 | } | |
1978 | ||
1979 | cable_info = (struct mlx4_cable_info *)inmad->data; | |
1980 | cable_info->dev_mem_address = cpu_to_be16(offset); | |
1981 | cable_info->page_num = 0; | |
1982 | cable_info->i2c_addr = i2c_addr; | |
1983 | cable_info->size = cpu_to_be16(size); | |
1984 | ||
1985 | ret = mlx4_cmd_box(dev, inbox->dma, outbox->dma, port, 3, | |
1986 | MLX4_CMD_MAD_IFC, MLX4_CMD_TIME_CLASS_C, | |
1987 | MLX4_CMD_NATIVE); | |
1988 | if (ret) | |
1989 | goto out; | |
1990 | ||
1991 | if (be16_to_cpu(outmad->status)) { | |
1992 | /* Mad returned with bad status */ | |
1993 | ret = be16_to_cpu(outmad->status); | |
1994 | mlx4_warn(dev, | |
1995 | "MLX4_CMD_MAD_IFC Get Module info attr(%x) port(%d) i2c_addr(%x) offset(%d) size(%d): Response Mad Status(%x) - %s\n", | |
1996 | 0xFF60, port, i2c_addr, offset, size, | |
1997 | ret, cable_info_mad_err_str(ret)); | |
1998 | ||
1999 | if (i2c_addr == I2C_ADDR_HIGH && | |
2000 | MAD_STATUS_2_CABLE_ERR(ret) == CABLE_INF_I2C_ADDR) | |
2001 | /* Some SFP cables do not support i2c slave | |
2002 | * address 0x51 (high page), abort silently. | |
2003 | */ | |
2004 | ret = 0; | |
2005 | else | |
2006 | ret = -ret; | |
2007 | goto out; | |
2008 | } | |
2009 | cable_info = (struct mlx4_cable_info *)outmad->data; | |
2010 | memcpy(data, cable_info->data, size); | |
2011 | ret = size; | |
2012 | out: | |
2013 | mlx4_free_cmd_mailbox(dev, inbox); | |
2014 | mlx4_free_cmd_mailbox(dev, outbox); | |
2015 | return ret; | |
2016 | } | |
2017 | EXPORT_SYMBOL(mlx4_get_module_info); |