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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
[deliverable/linux.git] / drivers / net / ethernet / mellanox / mlx4 / port.c
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
42 #define MLX4_MAC_VALID (1ull << 63)
43
44 #define MLX4_VLAN_VALID (1u << 31)
45 #define MLX4_VLAN_MASK 0xfff
46
47 #define MLX4_STATS_TRAFFIC_COUNTERS_MASK 0xfULL
48 #define MLX4_STATS_TRAFFIC_DROPS_MASK 0xc0ULL
49 #define MLX4_STATS_ERROR_COUNTERS_MASK 0x1ffc30ULL
50 #define MLX4_STATS_PORT_COUNTERS_MASK 0x1fe00000ULL
51
52 void mlx4_init_mac_table(struct mlx4_dev *dev, struct mlx4_mac_table *table)
53 {
54 int i;
55
56 mutex_init(&table->mutex);
57 for (i = 0; i < MLX4_MAX_MAC_NUM; i++) {
58 table->entries[i] = 0;
59 table->refs[i] = 0;
60 }
61 table->max = 1 << dev->caps.log_num_macs;
62 table->total = 0;
63 }
64
65 void mlx4_init_vlan_table(struct mlx4_dev *dev, struct mlx4_vlan_table *table)
66 {
67 int i;
68
69 mutex_init(&table->mutex);
70 for (i = 0; i < MLX4_MAX_VLAN_NUM; i++) {
71 table->entries[i] = 0;
72 table->refs[i] = 0;
73 }
74 table->max = (1 << dev->caps.log_num_vlans) - MLX4_VLAN_REGULAR;
75 table->total = 0;
76 }
77
78 static int validate_index(struct mlx4_dev *dev,
79 struct mlx4_mac_table *table, int index)
80 {
81 int err = 0;
82
83 if (index < 0 || index >= table->max || !table->entries[index]) {
84 mlx4_warn(dev, "No valid Mac entry for the given index\n");
85 err = -EINVAL;
86 }
87 return err;
88 }
89
90 static int find_index(struct mlx4_dev *dev,
91 struct mlx4_mac_table *table, u64 mac)
92 {
93 int i;
94
95 for (i = 0; i < MLX4_MAX_MAC_NUM; i++) {
96 if ((mac & MLX4_MAC_MASK) ==
97 (MLX4_MAC_MASK & be64_to_cpu(table->entries[i])))
98 return i;
99 }
100 /* Mac not found */
101 return -EINVAL;
102 }
103
104 static int mlx4_set_port_mac_table(struct mlx4_dev *dev, u8 port,
105 __be64 *entries)
106 {
107 struct mlx4_cmd_mailbox *mailbox;
108 u32 in_mod;
109 int err;
110
111 mailbox = mlx4_alloc_cmd_mailbox(dev);
112 if (IS_ERR(mailbox))
113 return PTR_ERR(mailbox);
114
115 memcpy(mailbox->buf, entries, MLX4_MAC_TABLE_SIZE);
116
117 in_mod = MLX4_SET_PORT_MAC_TABLE << 8 | port;
118
119 err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT,
120 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
121
122 mlx4_free_cmd_mailbox(dev, mailbox);
123 return err;
124 }
125
126 int mlx4_find_cached_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *idx)
127 {
128 struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
129 struct mlx4_mac_table *table = &info->mac_table;
130 int i;
131
132 for (i = 0; i < MLX4_MAX_MAC_NUM; i++) {
133 if (!table->refs[i])
134 continue;
135
136 if (mac == (MLX4_MAC_MASK & be64_to_cpu(table->entries[i]))) {
137 *idx = i;
138 return 0;
139 }
140 }
141
142 return -ENOENT;
143 }
144 EXPORT_SYMBOL_GPL(mlx4_find_cached_mac);
145
146 int __mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac)
147 {
148 struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
149 struct mlx4_mac_table *table = &info->mac_table;
150 int i, err = 0;
151 int free = -1;
152
153 mlx4_dbg(dev, "Registering MAC: 0x%llx for port %d\n",
154 (unsigned long long) mac, port);
155
156 mutex_lock(&table->mutex);
157 for (i = 0; i < MLX4_MAX_MAC_NUM; i++) {
158 if (free < 0 && !table->entries[i]) {
159 free = i;
160 continue;
161 }
162
163 if (mac == (MLX4_MAC_MASK & be64_to_cpu(table->entries[i]))) {
164 /* MAC already registered, increment ref count */
165 err = i;
166 ++table->refs[i];
167 goto out;
168 }
169 }
170
171 mlx4_dbg(dev, "Free MAC index is %d\n", free);
172
173 if (table->total == table->max) {
174 /* No free mac entries */
175 err = -ENOSPC;
176 goto out;
177 }
178
179 /* Register new MAC */
180 table->entries[free] = cpu_to_be64(mac | MLX4_MAC_VALID);
181
182 err = mlx4_set_port_mac_table(dev, port, table->entries);
183 if (unlikely(err)) {
184 mlx4_err(dev, "Failed adding MAC: 0x%llx\n",
185 (unsigned long long) mac);
186 table->entries[free] = 0;
187 goto out;
188 }
189 table->refs[free] = 1;
190 err = free;
191 ++table->total;
192 out:
193 mutex_unlock(&table->mutex);
194 return err;
195 }
196 EXPORT_SYMBOL_GPL(__mlx4_register_mac);
197
198 int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac)
199 {
200 u64 out_param = 0;
201 int err = -EINVAL;
202
203 if (mlx4_is_mfunc(dev)) {
204 if (!(dev->flags & MLX4_FLAG_OLD_REG_MAC)) {
205 err = mlx4_cmd_imm(dev, mac, &out_param,
206 ((u32) port) << 8 | (u32) RES_MAC,
207 RES_OP_RESERVE_AND_MAP, MLX4_CMD_ALLOC_RES,
208 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
209 }
210 if (err && err == -EINVAL && mlx4_is_slave(dev)) {
211 /* retry using old REG_MAC format */
212 set_param_l(&out_param, port);
213 err = mlx4_cmd_imm(dev, mac, &out_param, RES_MAC,
214 RES_OP_RESERVE_AND_MAP, MLX4_CMD_ALLOC_RES,
215 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
216 if (!err)
217 dev->flags |= MLX4_FLAG_OLD_REG_MAC;
218 }
219 if (err)
220 return err;
221
222 return get_param_l(&out_param);
223 }
224 return __mlx4_register_mac(dev, port, mac);
225 }
226 EXPORT_SYMBOL_GPL(mlx4_register_mac);
227
228 int mlx4_get_base_qpn(struct mlx4_dev *dev, u8 port)
229 {
230 return dev->caps.reserved_qps_base[MLX4_QP_REGION_ETH_ADDR] +
231 (port - 1) * (1 << dev->caps.log_num_macs);
232 }
233 EXPORT_SYMBOL_GPL(mlx4_get_base_qpn);
234
235 void __mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, u64 mac)
236 {
237 struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
238 struct mlx4_mac_table *table = &info->mac_table;
239 int index;
240
241 mutex_lock(&table->mutex);
242 index = find_index(dev, table, mac);
243
244 if (validate_index(dev, table, index))
245 goto out;
246 if (--table->refs[index]) {
247 mlx4_dbg(dev, "Have more references for index %d,"
248 "no need to modify mac table\n", index);
249 goto out;
250 }
251
252 table->entries[index] = 0;
253 mlx4_set_port_mac_table(dev, port, table->entries);
254 --table->total;
255 out:
256 mutex_unlock(&table->mutex);
257 }
258 EXPORT_SYMBOL_GPL(__mlx4_unregister_mac);
259
260 void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, u64 mac)
261 {
262 u64 out_param = 0;
263
264 if (mlx4_is_mfunc(dev)) {
265 if (!(dev->flags & MLX4_FLAG_OLD_REG_MAC)) {
266 (void) mlx4_cmd_imm(dev, mac, &out_param,
267 ((u32) port) << 8 | (u32) RES_MAC,
268 RES_OP_RESERVE_AND_MAP, MLX4_CMD_FREE_RES,
269 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
270 } else {
271 /* use old unregister mac format */
272 set_param_l(&out_param, port);
273 (void) mlx4_cmd_imm(dev, mac, &out_param, RES_MAC,
274 RES_OP_RESERVE_AND_MAP, MLX4_CMD_FREE_RES,
275 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
276 }
277 return;
278 }
279 __mlx4_unregister_mac(dev, port, mac);
280 return;
281 }
282 EXPORT_SYMBOL_GPL(mlx4_unregister_mac);
283
284 int __mlx4_replace_mac(struct mlx4_dev *dev, u8 port, int qpn, u64 new_mac)
285 {
286 struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
287 struct mlx4_mac_table *table = &info->mac_table;
288 int index = qpn - info->base_qpn;
289 int err = 0;
290
291 /* CX1 doesn't support multi-functions */
292 mutex_lock(&table->mutex);
293
294 err = validate_index(dev, table, index);
295 if (err)
296 goto out;
297
298 table->entries[index] = cpu_to_be64(new_mac | MLX4_MAC_VALID);
299
300 err = mlx4_set_port_mac_table(dev, port, table->entries);
301 if (unlikely(err)) {
302 mlx4_err(dev, "Failed adding MAC: 0x%llx\n",
303 (unsigned long long) new_mac);
304 table->entries[index] = 0;
305 }
306 out:
307 mutex_unlock(&table->mutex);
308 return err;
309 }
310 EXPORT_SYMBOL_GPL(__mlx4_replace_mac);
311
312 static int mlx4_set_port_vlan_table(struct mlx4_dev *dev, u8 port,
313 __be32 *entries)
314 {
315 struct mlx4_cmd_mailbox *mailbox;
316 u32 in_mod;
317 int err;
318
319 mailbox = mlx4_alloc_cmd_mailbox(dev);
320 if (IS_ERR(mailbox))
321 return PTR_ERR(mailbox);
322
323 memcpy(mailbox->buf, entries, MLX4_VLAN_TABLE_SIZE);
324 in_mod = MLX4_SET_PORT_VLAN_TABLE << 8 | port;
325 err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT,
326 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
327
328 mlx4_free_cmd_mailbox(dev, mailbox);
329
330 return err;
331 }
332
333 int mlx4_find_cached_vlan(struct mlx4_dev *dev, u8 port, u16 vid, int *idx)
334 {
335 struct mlx4_vlan_table *table = &mlx4_priv(dev)->port[port].vlan_table;
336 int i;
337
338 for (i = 0; i < MLX4_MAX_VLAN_NUM; ++i) {
339 if (table->refs[i] &&
340 (vid == (MLX4_VLAN_MASK &
341 be32_to_cpu(table->entries[i])))) {
342 /* VLAN already registered, increase reference count */
343 *idx = i;
344 return 0;
345 }
346 }
347
348 return -ENOENT;
349 }
350 EXPORT_SYMBOL_GPL(mlx4_find_cached_vlan);
351
352 int __mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan,
353 int *index)
354 {
355 struct mlx4_vlan_table *table = &mlx4_priv(dev)->port[port].vlan_table;
356 int i, err = 0;
357 int free = -1;
358
359 mutex_lock(&table->mutex);
360
361 if (table->total == table->max) {
362 /* No free vlan entries */
363 err = -ENOSPC;
364 goto out;
365 }
366
367 for (i = MLX4_VLAN_REGULAR; i < MLX4_MAX_VLAN_NUM; i++) {
368 if (free < 0 && (table->refs[i] == 0)) {
369 free = i;
370 continue;
371 }
372
373 if (table->refs[i] &&
374 (vlan == (MLX4_VLAN_MASK &
375 be32_to_cpu(table->entries[i])))) {
376 /* Vlan already registered, increase references count */
377 *index = i;
378 ++table->refs[i];
379 goto out;
380 }
381 }
382
383 if (free < 0) {
384 err = -ENOMEM;
385 goto out;
386 }
387
388 /* Register new VLAN */
389 table->refs[free] = 1;
390 table->entries[free] = cpu_to_be32(vlan | MLX4_VLAN_VALID);
391
392 err = mlx4_set_port_vlan_table(dev, port, table->entries);
393 if (unlikely(err)) {
394 mlx4_warn(dev, "Failed adding vlan: %u\n", vlan);
395 table->refs[free] = 0;
396 table->entries[free] = 0;
397 goto out;
398 }
399
400 *index = free;
401 ++table->total;
402 out:
403 mutex_unlock(&table->mutex);
404 return err;
405 }
406
407 int mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan, int *index)
408 {
409 u64 out_param = 0;
410 int err;
411
412 if (vlan > 4095)
413 return -EINVAL;
414
415 if (mlx4_is_mfunc(dev)) {
416 err = mlx4_cmd_imm(dev, vlan, &out_param,
417 ((u32) port) << 8 | (u32) RES_VLAN,
418 RES_OP_RESERVE_AND_MAP, MLX4_CMD_ALLOC_RES,
419 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
420 if (!err)
421 *index = get_param_l(&out_param);
422
423 return err;
424 }
425 return __mlx4_register_vlan(dev, port, vlan, index);
426 }
427 EXPORT_SYMBOL_GPL(mlx4_register_vlan);
428
429 void __mlx4_unregister_vlan(struct mlx4_dev *dev, u8 port, u16 vlan)
430 {
431 struct mlx4_vlan_table *table = &mlx4_priv(dev)->port[port].vlan_table;
432 int index;
433
434 mutex_lock(&table->mutex);
435 if (mlx4_find_cached_vlan(dev, port, vlan, &index)) {
436 mlx4_warn(dev, "vlan 0x%x is not in the vlan table\n", vlan);
437 goto out;
438 }
439
440 if (index < MLX4_VLAN_REGULAR) {
441 mlx4_warn(dev, "Trying to free special vlan index %d\n", index);
442 goto out;
443 }
444
445 if (--table->refs[index]) {
446 mlx4_dbg(dev, "Have %d more references for index %d,"
447 "no need to modify vlan table\n", table->refs[index],
448 index);
449 goto out;
450 }
451 table->entries[index] = 0;
452 mlx4_set_port_vlan_table(dev, port, table->entries);
453 --table->total;
454 out:
455 mutex_unlock(&table->mutex);
456 }
457
458 void mlx4_unregister_vlan(struct mlx4_dev *dev, u8 port, u16 vlan)
459 {
460 u64 out_param = 0;
461
462 if (mlx4_is_mfunc(dev)) {
463 (void) mlx4_cmd_imm(dev, vlan, &out_param,
464 ((u32) port) << 8 | (u32) RES_VLAN,
465 RES_OP_RESERVE_AND_MAP,
466 MLX4_CMD_FREE_RES, MLX4_CMD_TIME_CLASS_A,
467 MLX4_CMD_WRAPPED);
468 return;
469 }
470 __mlx4_unregister_vlan(dev, port, vlan);
471 }
472 EXPORT_SYMBOL_GPL(mlx4_unregister_vlan);
473
474 int mlx4_get_port_ib_caps(struct mlx4_dev *dev, u8 port, __be32 *caps)
475 {
476 struct mlx4_cmd_mailbox *inmailbox, *outmailbox;
477 u8 *inbuf, *outbuf;
478 int err;
479
480 inmailbox = mlx4_alloc_cmd_mailbox(dev);
481 if (IS_ERR(inmailbox))
482 return PTR_ERR(inmailbox);
483
484 outmailbox = mlx4_alloc_cmd_mailbox(dev);
485 if (IS_ERR(outmailbox)) {
486 mlx4_free_cmd_mailbox(dev, inmailbox);
487 return PTR_ERR(outmailbox);
488 }
489
490 inbuf = inmailbox->buf;
491 outbuf = outmailbox->buf;
492 inbuf[0] = 1;
493 inbuf[1] = 1;
494 inbuf[2] = 1;
495 inbuf[3] = 1;
496 *(__be16 *) (&inbuf[16]) = cpu_to_be16(0x0015);
497 *(__be32 *) (&inbuf[20]) = cpu_to_be32(port);
498
499 err = mlx4_cmd_box(dev, inmailbox->dma, outmailbox->dma, port, 3,
500 MLX4_CMD_MAD_IFC, MLX4_CMD_TIME_CLASS_C,
501 MLX4_CMD_NATIVE);
502 if (!err)
503 *caps = *(__be32 *) (outbuf + 84);
504 mlx4_free_cmd_mailbox(dev, inmailbox);
505 mlx4_free_cmd_mailbox(dev, outmailbox);
506 return err;
507 }
508 static struct mlx4_roce_gid_entry zgid_entry;
509
510 int mlx4_get_slave_num_gids(struct mlx4_dev *dev, int slave, int port)
511 {
512 int vfs;
513 int slave_gid = slave;
514 unsigned i;
515 struct mlx4_slaves_pport slaves_pport;
516 struct mlx4_active_ports actv_ports;
517 unsigned max_port_p_one;
518
519 if (slave == 0)
520 return MLX4_ROCE_PF_GIDS;
521
522 /* Slave is a VF */
523 slaves_pport = mlx4_phys_to_slaves_pport(dev, port);
524 actv_ports = mlx4_get_active_ports(dev, slave);
525 max_port_p_one = find_first_bit(actv_ports.ports, dev->caps.num_ports) +
526 bitmap_weight(actv_ports.ports, dev->caps.num_ports) + 1;
527
528 for (i = 1; i < max_port_p_one; i++) {
529 struct mlx4_active_ports exclusive_ports;
530 struct mlx4_slaves_pport slaves_pport_actv;
531 bitmap_zero(exclusive_ports.ports, dev->caps.num_ports);
532 set_bit(i - 1, exclusive_ports.ports);
533 if (i == port)
534 continue;
535 slaves_pport_actv = mlx4_phys_to_slaves_pport_actv(
536 dev, &exclusive_ports);
537 slave_gid -= bitmap_weight(slaves_pport_actv.slaves,
538 dev->num_vfs + 1);
539 }
540 vfs = bitmap_weight(slaves_pport.slaves, dev->num_vfs + 1) - 1;
541 if (slave_gid <= ((MLX4_ROCE_MAX_GIDS - MLX4_ROCE_PF_GIDS) % vfs))
542 return ((MLX4_ROCE_MAX_GIDS - MLX4_ROCE_PF_GIDS) / vfs) + 1;
543 return (MLX4_ROCE_MAX_GIDS - MLX4_ROCE_PF_GIDS) / vfs;
544 }
545
546 int mlx4_get_base_gid_ix(struct mlx4_dev *dev, int slave, int port)
547 {
548 int gids;
549 unsigned i;
550 int slave_gid = slave;
551 int vfs;
552
553 struct mlx4_slaves_pport slaves_pport;
554 struct mlx4_active_ports actv_ports;
555 unsigned max_port_p_one;
556
557 if (slave == 0)
558 return 0;
559
560 slaves_pport = mlx4_phys_to_slaves_pport(dev, port);
561 actv_ports = mlx4_get_active_ports(dev, slave);
562 max_port_p_one = find_first_bit(actv_ports.ports, dev->caps.num_ports) +
563 bitmap_weight(actv_ports.ports, dev->caps.num_ports) + 1;
564
565 for (i = 1; i < max_port_p_one; i++) {
566 struct mlx4_active_ports exclusive_ports;
567 struct mlx4_slaves_pport slaves_pport_actv;
568 bitmap_zero(exclusive_ports.ports, dev->caps.num_ports);
569 set_bit(i - 1, exclusive_ports.ports);
570 if (i == port)
571 continue;
572 slaves_pport_actv = mlx4_phys_to_slaves_pport_actv(
573 dev, &exclusive_ports);
574 slave_gid -= bitmap_weight(slaves_pport_actv.slaves,
575 dev->num_vfs + 1);
576 }
577 gids = MLX4_ROCE_MAX_GIDS - MLX4_ROCE_PF_GIDS;
578 vfs = bitmap_weight(slaves_pport.slaves, dev->num_vfs + 1) - 1;
579 if (slave_gid <= gids % vfs)
580 return MLX4_ROCE_PF_GIDS + ((gids / vfs) + 1) * (slave_gid - 1);
581
582 return MLX4_ROCE_PF_GIDS + (gids % vfs) +
583 ((gids / vfs) * (slave_gid - 1));
584 }
585 EXPORT_SYMBOL_GPL(mlx4_get_base_gid_ix);
586
587 static int mlx4_common_set_port(struct mlx4_dev *dev, int slave, u32 in_mod,
588 u8 op_mod, struct mlx4_cmd_mailbox *inbox)
589 {
590 struct mlx4_priv *priv = mlx4_priv(dev);
591 struct mlx4_port_info *port_info;
592 struct mlx4_mfunc_master_ctx *master = &priv->mfunc.master;
593 struct mlx4_slave_state *slave_st = &master->slave_state[slave];
594 struct mlx4_set_port_rqp_calc_context *qpn_context;
595 struct mlx4_set_port_general_context *gen_context;
596 struct mlx4_roce_gid_entry *gid_entry_tbl, *gid_entry_mbox, *gid_entry_mb1;
597 int reset_qkey_viols;
598 int port;
599 int is_eth;
600 int num_gids;
601 int base;
602 u32 in_modifier;
603 u32 promisc;
604 u16 mtu, prev_mtu;
605 int err;
606 int i, j;
607 int offset;
608 __be32 agg_cap_mask;
609 __be32 slave_cap_mask;
610 __be32 new_cap_mask;
611
612 port = in_mod & 0xff;
613 in_modifier = in_mod >> 8;
614 is_eth = op_mod;
615 port_info = &priv->port[port];
616
617 /* Slaves cannot perform SET_PORT operations except changing MTU */
618 if (is_eth) {
619 if (slave != dev->caps.function &&
620 in_modifier != MLX4_SET_PORT_GENERAL &&
621 in_modifier != MLX4_SET_PORT_GID_TABLE) {
622 mlx4_warn(dev, "denying SET_PORT for slave:%d\n",
623 slave);
624 return -EINVAL;
625 }
626 switch (in_modifier) {
627 case MLX4_SET_PORT_RQP_CALC:
628 qpn_context = inbox->buf;
629 qpn_context->base_qpn =
630 cpu_to_be32(port_info->base_qpn);
631 qpn_context->n_mac = 0x7;
632 promisc = be32_to_cpu(qpn_context->promisc) >>
633 SET_PORT_PROMISC_SHIFT;
634 qpn_context->promisc = cpu_to_be32(
635 promisc << SET_PORT_PROMISC_SHIFT |
636 port_info->base_qpn);
637 promisc = be32_to_cpu(qpn_context->mcast) >>
638 SET_PORT_MC_PROMISC_SHIFT;
639 qpn_context->mcast = cpu_to_be32(
640 promisc << SET_PORT_MC_PROMISC_SHIFT |
641 port_info->base_qpn);
642 break;
643 case MLX4_SET_PORT_GENERAL:
644 gen_context = inbox->buf;
645 /* Mtu is configured as the max MTU among all the
646 * the functions on the port. */
647 mtu = be16_to_cpu(gen_context->mtu);
648 mtu = min_t(int, mtu, dev->caps.eth_mtu_cap[port] +
649 ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN);
650 prev_mtu = slave_st->mtu[port];
651 slave_st->mtu[port] = mtu;
652 if (mtu > master->max_mtu[port])
653 master->max_mtu[port] = mtu;
654 if (mtu < prev_mtu && prev_mtu ==
655 master->max_mtu[port]) {
656 slave_st->mtu[port] = mtu;
657 master->max_mtu[port] = mtu;
658 for (i = 0; i < dev->num_slaves; i++) {
659 master->max_mtu[port] =
660 max(master->max_mtu[port],
661 master->slave_state[i].mtu[port]);
662 }
663 }
664
665 gen_context->mtu = cpu_to_be16(master->max_mtu[port]);
666 break;
667 case MLX4_SET_PORT_GID_TABLE:
668 /* change to MULTIPLE entries: number of guest's gids
669 * need a FOR-loop here over number of gids the guest has.
670 * 1. Check no duplicates in gids passed by slave
671 */
672 num_gids = mlx4_get_slave_num_gids(dev, slave, port);
673 base = mlx4_get_base_gid_ix(dev, slave, port);
674 gid_entry_mbox = (struct mlx4_roce_gid_entry *)(inbox->buf);
675 for (i = 0; i < num_gids; gid_entry_mbox++, i++) {
676 if (!memcmp(gid_entry_mbox->raw, zgid_entry.raw,
677 sizeof(zgid_entry)))
678 continue;
679 gid_entry_mb1 = gid_entry_mbox + 1;
680 for (j = i + 1; j < num_gids; gid_entry_mb1++, j++) {
681 if (!memcmp(gid_entry_mb1->raw,
682 zgid_entry.raw, sizeof(zgid_entry)))
683 continue;
684 if (!memcmp(gid_entry_mb1->raw, gid_entry_mbox->raw,
685 sizeof(gid_entry_mbox->raw))) {
686 /* found duplicate */
687 return -EINVAL;
688 }
689 }
690 }
691
692 /* 2. Check that do not have duplicates in OTHER
693 * entries in the port GID table
694 */
695 for (i = 0; i < MLX4_ROCE_MAX_GIDS; i++) {
696 if (i >= base && i < base + num_gids)
697 continue; /* don't compare to slave's current gids */
698 gid_entry_tbl = &priv->roce_gids[port - 1][i];
699 if (!memcmp(gid_entry_tbl->raw, zgid_entry.raw, sizeof(zgid_entry)))
700 continue;
701 gid_entry_mbox = (struct mlx4_roce_gid_entry *)(inbox->buf);
702 for (j = 0; j < num_gids; gid_entry_mbox++, j++) {
703 if (!memcmp(gid_entry_mbox->raw, zgid_entry.raw,
704 sizeof(zgid_entry)))
705 continue;
706 if (!memcmp(gid_entry_mbox->raw, gid_entry_tbl->raw,
707 sizeof(gid_entry_tbl->raw))) {
708 /* found duplicate */
709 mlx4_warn(dev, "requested gid entry for slave:%d "
710 "is a duplicate of gid at index %d\n",
711 slave, i);
712 return -EINVAL;
713 }
714 }
715 }
716
717 /* insert slave GIDs with memcpy, starting at slave's base index */
718 gid_entry_mbox = (struct mlx4_roce_gid_entry *)(inbox->buf);
719 for (i = 0, offset = base; i < num_gids; gid_entry_mbox++, offset++, i++)
720 memcpy(priv->roce_gids[port - 1][offset].raw, gid_entry_mbox->raw, 16);
721
722 /* Now, copy roce port gids table to current mailbox for passing to FW */
723 gid_entry_mbox = (struct mlx4_roce_gid_entry *)(inbox->buf);
724 for (i = 0; i < MLX4_ROCE_MAX_GIDS; gid_entry_mbox++, i++)
725 memcpy(gid_entry_mbox->raw, priv->roce_gids[port - 1][i].raw, 16);
726
727 break;
728 }
729 return mlx4_cmd(dev, inbox->dma, in_mod, op_mod,
730 MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
731 MLX4_CMD_NATIVE);
732 }
733
734 /* For IB, we only consider:
735 * - The capability mask, which is set to the aggregate of all
736 * slave function capabilities
737 * - The QKey violatin counter - reset according to each request.
738 */
739
740 if (dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
741 reset_qkey_viols = (*(u8 *) inbox->buf) & 0x40;
742 new_cap_mask = ((__be32 *) inbox->buf)[2];
743 } else {
744 reset_qkey_viols = ((u8 *) inbox->buf)[3] & 0x1;
745 new_cap_mask = ((__be32 *) inbox->buf)[1];
746 }
747
748 /* slave may not set the IS_SM capability for the port */
749 if (slave != mlx4_master_func_num(dev) &&
750 (be32_to_cpu(new_cap_mask) & MLX4_PORT_CAP_IS_SM))
751 return -EINVAL;
752
753 /* No DEV_MGMT in multifunc mode */
754 if (mlx4_is_mfunc(dev) &&
755 (be32_to_cpu(new_cap_mask) & MLX4_PORT_CAP_DEV_MGMT_SUP))
756 return -EINVAL;
757
758 agg_cap_mask = 0;
759 slave_cap_mask =
760 priv->mfunc.master.slave_state[slave].ib_cap_mask[port];
761 priv->mfunc.master.slave_state[slave].ib_cap_mask[port] = new_cap_mask;
762 for (i = 0; i < dev->num_slaves; i++)
763 agg_cap_mask |=
764 priv->mfunc.master.slave_state[i].ib_cap_mask[port];
765
766 /* only clear mailbox for guests. Master may be setting
767 * MTU or PKEY table size
768 */
769 if (slave != dev->caps.function)
770 memset(inbox->buf, 0, 256);
771 if (dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
772 *(u8 *) inbox->buf |= !!reset_qkey_viols << 6;
773 ((__be32 *) inbox->buf)[2] = agg_cap_mask;
774 } else {
775 ((u8 *) inbox->buf)[3] |= !!reset_qkey_viols;
776 ((__be32 *) inbox->buf)[1] = agg_cap_mask;
777 }
778
779 err = mlx4_cmd(dev, inbox->dma, port, is_eth, MLX4_CMD_SET_PORT,
780 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
781 if (err)
782 priv->mfunc.master.slave_state[slave].ib_cap_mask[port] =
783 slave_cap_mask;
784 return err;
785 }
786
787 int mlx4_SET_PORT_wrapper(struct mlx4_dev *dev, int slave,
788 struct mlx4_vhcr *vhcr,
789 struct mlx4_cmd_mailbox *inbox,
790 struct mlx4_cmd_mailbox *outbox,
791 struct mlx4_cmd_info *cmd)
792 {
793 int port = mlx4_slave_convert_port(
794 dev, slave, vhcr->in_modifier & 0xFF);
795
796 if (port < 0)
797 return -EINVAL;
798
799 vhcr->in_modifier = (vhcr->in_modifier & ~0xFF) |
800 (port & 0xFF);
801
802 return mlx4_common_set_port(dev, slave, vhcr->in_modifier,
803 vhcr->op_modifier, inbox);
804 }
805
806 /* bit locations for set port command with zero op modifier */
807 enum {
808 MLX4_SET_PORT_VL_CAP = 4, /* bits 7:4 */
809 MLX4_SET_PORT_MTU_CAP = 12, /* bits 15:12 */
810 MLX4_CHANGE_PORT_PKEY_TBL_SZ = 20,
811 MLX4_CHANGE_PORT_VL_CAP = 21,
812 MLX4_CHANGE_PORT_MTU_CAP = 22,
813 };
814
815 int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port, int pkey_tbl_sz)
816 {
817 struct mlx4_cmd_mailbox *mailbox;
818 int err, vl_cap, pkey_tbl_flag = 0;
819
820 if (dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH)
821 return 0;
822
823 mailbox = mlx4_alloc_cmd_mailbox(dev);
824 if (IS_ERR(mailbox))
825 return PTR_ERR(mailbox);
826
827 ((__be32 *) mailbox->buf)[1] = dev->caps.ib_port_def_cap[port];
828
829 if (pkey_tbl_sz >= 0 && mlx4_is_master(dev)) {
830 pkey_tbl_flag = 1;
831 ((__be16 *) mailbox->buf)[20] = cpu_to_be16(pkey_tbl_sz);
832 }
833
834 /* IB VL CAP enum isn't used by the firmware, just numerical values */
835 for (vl_cap = 8; vl_cap >= 1; vl_cap >>= 1) {
836 ((__be32 *) mailbox->buf)[0] = cpu_to_be32(
837 (1 << MLX4_CHANGE_PORT_MTU_CAP) |
838 (1 << MLX4_CHANGE_PORT_VL_CAP) |
839 (pkey_tbl_flag << MLX4_CHANGE_PORT_PKEY_TBL_SZ) |
840 (dev->caps.port_ib_mtu[port] << MLX4_SET_PORT_MTU_CAP) |
841 (vl_cap << MLX4_SET_PORT_VL_CAP));
842 err = mlx4_cmd(dev, mailbox->dma, port, 0, MLX4_CMD_SET_PORT,
843 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED);
844 if (err != -ENOMEM)
845 break;
846 }
847
848 mlx4_free_cmd_mailbox(dev, mailbox);
849 return err;
850 }
851
852 int mlx4_SET_PORT_general(struct mlx4_dev *dev, u8 port, int mtu,
853 u8 pptx, u8 pfctx, u8 pprx, u8 pfcrx)
854 {
855 struct mlx4_cmd_mailbox *mailbox;
856 struct mlx4_set_port_general_context *context;
857 int err;
858 u32 in_mod;
859
860 mailbox = mlx4_alloc_cmd_mailbox(dev);
861 if (IS_ERR(mailbox))
862 return PTR_ERR(mailbox);
863 context = mailbox->buf;
864 context->flags = SET_PORT_GEN_ALL_VALID;
865 context->mtu = cpu_to_be16(mtu);
866 context->pptx = (pptx * (!pfctx)) << 7;
867 context->pfctx = pfctx;
868 context->pprx = (pprx * (!pfcrx)) << 7;
869 context->pfcrx = pfcrx;
870
871 in_mod = MLX4_SET_PORT_GENERAL << 8 | port;
872 err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT,
873 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED);
874
875 mlx4_free_cmd_mailbox(dev, mailbox);
876 return err;
877 }
878 EXPORT_SYMBOL(mlx4_SET_PORT_general);
879
880 int mlx4_SET_PORT_qpn_calc(struct mlx4_dev *dev, u8 port, u32 base_qpn,
881 u8 promisc)
882 {
883 struct mlx4_cmd_mailbox *mailbox;
884 struct mlx4_set_port_rqp_calc_context *context;
885 int err;
886 u32 in_mod;
887 u32 m_promisc = (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER) ?
888 MCAST_DIRECT : MCAST_DEFAULT;
889
890 if (dev->caps.steering_mode != MLX4_STEERING_MODE_A0)
891 return 0;
892
893 mailbox = mlx4_alloc_cmd_mailbox(dev);
894 if (IS_ERR(mailbox))
895 return PTR_ERR(mailbox);
896 context = mailbox->buf;
897 context->base_qpn = cpu_to_be32(base_qpn);
898 context->n_mac = dev->caps.log_num_macs;
899 context->promisc = cpu_to_be32(promisc << SET_PORT_PROMISC_SHIFT |
900 base_qpn);
901 context->mcast = cpu_to_be32(m_promisc << SET_PORT_MC_PROMISC_SHIFT |
902 base_qpn);
903 context->intra_no_vlan = 0;
904 context->no_vlan = MLX4_NO_VLAN_IDX;
905 context->intra_vlan_miss = 0;
906 context->vlan_miss = MLX4_VLAN_MISS_IDX;
907
908 in_mod = MLX4_SET_PORT_RQP_CALC << 8 | port;
909 err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT,
910 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED);
911
912 mlx4_free_cmd_mailbox(dev, mailbox);
913 return err;
914 }
915 EXPORT_SYMBOL(mlx4_SET_PORT_qpn_calc);
916
917 int mlx4_SET_PORT_PRIO2TC(struct mlx4_dev *dev, u8 port, u8 *prio2tc)
918 {
919 struct mlx4_cmd_mailbox *mailbox;
920 struct mlx4_set_port_prio2tc_context *context;
921 int err;
922 u32 in_mod;
923 int i;
924
925 mailbox = mlx4_alloc_cmd_mailbox(dev);
926 if (IS_ERR(mailbox))
927 return PTR_ERR(mailbox);
928 context = mailbox->buf;
929 for (i = 0; i < MLX4_NUM_UP; i += 2)
930 context->prio2tc[i >> 1] = prio2tc[i] << 4 | prio2tc[i + 1];
931
932 in_mod = MLX4_SET_PORT_PRIO2TC << 8 | port;
933 err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT,
934 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
935
936 mlx4_free_cmd_mailbox(dev, mailbox);
937 return err;
938 }
939 EXPORT_SYMBOL(mlx4_SET_PORT_PRIO2TC);
940
941 int mlx4_SET_PORT_SCHEDULER(struct mlx4_dev *dev, u8 port, u8 *tc_tx_bw,
942 u8 *pg, u16 *ratelimit)
943 {
944 struct mlx4_cmd_mailbox *mailbox;
945 struct mlx4_set_port_scheduler_context *context;
946 int err;
947 u32 in_mod;
948 int i;
949
950 mailbox = mlx4_alloc_cmd_mailbox(dev);
951 if (IS_ERR(mailbox))
952 return PTR_ERR(mailbox);
953 context = mailbox->buf;
954
955 for (i = 0; i < MLX4_NUM_TC; i++) {
956 struct mlx4_port_scheduler_tc_cfg_be *tc = &context->tc[i];
957 u16 r = ratelimit && ratelimit[i] ? ratelimit[i] :
958 MLX4_RATELIMIT_DEFAULT;
959
960 tc->pg = htons(pg[i]);
961 tc->bw_precentage = htons(tc_tx_bw[i]);
962
963 tc->max_bw_units = htons(MLX4_RATELIMIT_UNITS);
964 tc->max_bw_value = htons(r);
965 }
966
967 in_mod = MLX4_SET_PORT_SCHEDULER << 8 | port;
968 err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT,
969 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
970
971 mlx4_free_cmd_mailbox(dev, mailbox);
972 return err;
973 }
974 EXPORT_SYMBOL(mlx4_SET_PORT_SCHEDULER);
975
976 enum {
977 VXLAN_ENABLE_MODIFY = 1 << 7,
978 VXLAN_STEERING_MODIFY = 1 << 6,
979
980 VXLAN_ENABLE = 1 << 7,
981 };
982
983 struct mlx4_set_port_vxlan_context {
984 u32 reserved1;
985 u8 modify_flags;
986 u8 reserved2;
987 u8 enable_flags;
988 u8 steering;
989 };
990
991 int mlx4_SET_PORT_VXLAN(struct mlx4_dev *dev, u8 port, u8 steering, int enable)
992 {
993 int err;
994 u32 in_mod;
995 struct mlx4_cmd_mailbox *mailbox;
996 struct mlx4_set_port_vxlan_context *context;
997
998 mailbox = mlx4_alloc_cmd_mailbox(dev);
999 if (IS_ERR(mailbox))
1000 return PTR_ERR(mailbox);
1001 context = mailbox->buf;
1002 memset(context, 0, sizeof(*context));
1003
1004 context->modify_flags = VXLAN_ENABLE_MODIFY | VXLAN_STEERING_MODIFY;
1005 if (enable)
1006 context->enable_flags = VXLAN_ENABLE;
1007 context->steering = steering;
1008
1009 in_mod = MLX4_SET_PORT_VXLAN << 8 | port;
1010 err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT,
1011 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
1012
1013 mlx4_free_cmd_mailbox(dev, mailbox);
1014 return err;
1015 }
1016 EXPORT_SYMBOL(mlx4_SET_PORT_VXLAN);
1017
1018 int mlx4_SET_MCAST_FLTR_wrapper(struct mlx4_dev *dev, int slave,
1019 struct mlx4_vhcr *vhcr,
1020 struct mlx4_cmd_mailbox *inbox,
1021 struct mlx4_cmd_mailbox *outbox,
1022 struct mlx4_cmd_info *cmd)
1023 {
1024 int err = 0;
1025
1026 return err;
1027 }
1028
1029 int mlx4_SET_MCAST_FLTR(struct mlx4_dev *dev, u8 port,
1030 u64 mac, u64 clear, u8 mode)
1031 {
1032 return mlx4_cmd(dev, (mac | (clear << 63)), port, mode,
1033 MLX4_CMD_SET_MCAST_FLTR, MLX4_CMD_TIME_CLASS_B,
1034 MLX4_CMD_WRAPPED);
1035 }
1036 EXPORT_SYMBOL(mlx4_SET_MCAST_FLTR);
1037
1038 int mlx4_SET_VLAN_FLTR_wrapper(struct mlx4_dev *dev, int slave,
1039 struct mlx4_vhcr *vhcr,
1040 struct mlx4_cmd_mailbox *inbox,
1041 struct mlx4_cmd_mailbox *outbox,
1042 struct mlx4_cmd_info *cmd)
1043 {
1044 int err = 0;
1045
1046 return err;
1047 }
1048
1049 int mlx4_common_dump_eth_stats(struct mlx4_dev *dev, int slave,
1050 u32 in_mod, struct mlx4_cmd_mailbox *outbox)
1051 {
1052 return mlx4_cmd_box(dev, 0, outbox->dma, in_mod, 0,
1053 MLX4_CMD_DUMP_ETH_STATS, MLX4_CMD_TIME_CLASS_B,
1054 MLX4_CMD_NATIVE);
1055 }
1056
1057 int mlx4_DUMP_ETH_STATS_wrapper(struct mlx4_dev *dev, int slave,
1058 struct mlx4_vhcr *vhcr,
1059 struct mlx4_cmd_mailbox *inbox,
1060 struct mlx4_cmd_mailbox *outbox,
1061 struct mlx4_cmd_info *cmd)
1062 {
1063 if (slave != dev->caps.function)
1064 return 0;
1065 return mlx4_common_dump_eth_stats(dev, slave,
1066 vhcr->in_modifier, outbox);
1067 }
1068
1069 void mlx4_set_stats_bitmap(struct mlx4_dev *dev, u64 *stats_bitmap)
1070 {
1071 if (!mlx4_is_mfunc(dev)) {
1072 *stats_bitmap = 0;
1073 return;
1074 }
1075
1076 *stats_bitmap = (MLX4_STATS_TRAFFIC_COUNTERS_MASK |
1077 MLX4_STATS_TRAFFIC_DROPS_MASK |
1078 MLX4_STATS_PORT_COUNTERS_MASK);
1079
1080 if (mlx4_is_master(dev))
1081 *stats_bitmap |= MLX4_STATS_ERROR_COUNTERS_MASK;
1082 }
1083 EXPORT_SYMBOL(mlx4_set_stats_bitmap);
1084
1085 int mlx4_get_slave_from_roce_gid(struct mlx4_dev *dev, int port, u8 *gid,
1086 int *slave_id)
1087 {
1088 struct mlx4_priv *priv = mlx4_priv(dev);
1089 int i, found_ix = -1;
1090 int vf_gids = MLX4_ROCE_MAX_GIDS - MLX4_ROCE_PF_GIDS;
1091 struct mlx4_slaves_pport slaves_pport;
1092 unsigned num_vfs;
1093 int slave_gid;
1094
1095 if (!mlx4_is_mfunc(dev))
1096 return -EINVAL;
1097
1098 slaves_pport = mlx4_phys_to_slaves_pport(dev, port);
1099 num_vfs = bitmap_weight(slaves_pport.slaves, dev->num_vfs + 1) - 1;
1100
1101 for (i = 0; i < MLX4_ROCE_MAX_GIDS; i++) {
1102 if (!memcmp(priv->roce_gids[port - 1][i].raw, gid, 16)) {
1103 found_ix = i;
1104 break;
1105 }
1106 }
1107
1108 if (found_ix >= 0) {
1109 if (found_ix < MLX4_ROCE_PF_GIDS)
1110 slave_gid = 0;
1111 else if (found_ix < MLX4_ROCE_PF_GIDS + (vf_gids % num_vfs) *
1112 (vf_gids / num_vfs + 1))
1113 slave_gid = ((found_ix - MLX4_ROCE_PF_GIDS) /
1114 (vf_gids / num_vfs + 1)) + 1;
1115 else
1116 slave_gid =
1117 ((found_ix - MLX4_ROCE_PF_GIDS -
1118 ((vf_gids % num_vfs) * ((vf_gids / num_vfs + 1)))) /
1119 (vf_gids / num_vfs)) + vf_gids % num_vfs + 1;
1120
1121 if (slave_gid) {
1122 struct mlx4_active_ports exclusive_ports;
1123 struct mlx4_active_ports actv_ports;
1124 struct mlx4_slaves_pport slaves_pport_actv;
1125 unsigned max_port_p_one;
1126 int num_slaves_before = 1;
1127
1128 for (i = 1; i < port; i++) {
1129 bitmap_zero(exclusive_ports.ports, dev->caps.num_ports);
1130 set_bit(i, exclusive_ports.ports);
1131 slaves_pport_actv =
1132 mlx4_phys_to_slaves_pport_actv(
1133 dev, &exclusive_ports);
1134 num_slaves_before += bitmap_weight(
1135 slaves_pport_actv.slaves,
1136 dev->num_vfs + 1);
1137 }
1138
1139 if (slave_gid < num_slaves_before) {
1140 bitmap_zero(exclusive_ports.ports, dev->caps.num_ports);
1141 set_bit(port - 1, exclusive_ports.ports);
1142 slaves_pport_actv =
1143 mlx4_phys_to_slaves_pport_actv(
1144 dev, &exclusive_ports);
1145 slave_gid += bitmap_weight(
1146 slaves_pport_actv.slaves,
1147 dev->num_vfs + 1) -
1148 num_slaves_before;
1149 }
1150 actv_ports = mlx4_get_active_ports(dev, slave_gid);
1151 max_port_p_one = find_first_bit(
1152 actv_ports.ports, dev->caps.num_ports) +
1153 bitmap_weight(actv_ports.ports,
1154 dev->caps.num_ports) + 1;
1155
1156 for (i = 1; i < max_port_p_one; i++) {
1157 if (i == port)
1158 continue;
1159 bitmap_zero(exclusive_ports.ports,
1160 dev->caps.num_ports);
1161 set_bit(i - 1, exclusive_ports.ports);
1162 slaves_pport_actv =
1163 mlx4_phys_to_slaves_pport_actv(
1164 dev, &exclusive_ports);
1165 slave_gid += bitmap_weight(
1166 slaves_pport_actv.slaves,
1167 dev->num_vfs + 1);
1168 }
1169 }
1170 *slave_id = slave_gid;
1171 }
1172
1173 return (found_ix >= 0) ? 0 : -EINVAL;
1174 }
1175 EXPORT_SYMBOL(mlx4_get_slave_from_roce_gid);
1176
1177 int mlx4_get_roce_gid_from_slave(struct mlx4_dev *dev, int port, int slave_id,
1178 u8 *gid)
1179 {
1180 struct mlx4_priv *priv = mlx4_priv(dev);
1181
1182 if (!mlx4_is_master(dev))
1183 return -EINVAL;
1184
1185 memcpy(gid, priv->roce_gids[port - 1][slave_id].raw, 16);
1186 return 0;
1187 }
1188 EXPORT_SYMBOL(mlx4_get_roce_gid_from_slave);
Linux kernel - Deliverables
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