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[deliverable/linux.git] / drivers / net / ethernet / mellanox / mlx4 / resource_tracker.c
1 /*
2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
3 * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies.
4 * All rights reserved.
5 * Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc. All rights reserved.
6 *
7 * This software is available to you under a choice of one of two
8 * licenses. You may choose to be licensed under the terms of the GNU
9 * General Public License (GPL) Version 2, available from the file
10 * COPYING in the main directory of this source tree, or the
11 * OpenIB.org BSD license below:
12 *
13 * Redistribution and use in source and binary forms, with or
14 * without modification, are permitted provided that the following
15 * conditions are met:
16 *
17 * - Redistributions of source code must retain the above
18 * copyright notice, this list of conditions and the following
19 * disclaimer.
20 *
21 * - Redistributions in binary form must reproduce the above
22 * copyright notice, this list of conditions and the following
23 * disclaimer in the documentation and/or other materials
24 * provided with the distribution.
25 *
26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
27 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
28 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
29 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
30 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
31 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
32 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
33 * SOFTWARE.
34 */
35
36 #include <linux/sched.h>
37 #include <linux/pci.h>
38 #include <linux/errno.h>
39 #include <linux/kernel.h>
40 #include <linux/io.h>
41 #include <linux/slab.h>
42 #include <linux/mlx4/cmd.h>
43 #include <linux/mlx4/qp.h>
44 #include <linux/if_ether.h>
45 #include <linux/etherdevice.h>
46
47 #include "mlx4.h"
48 #include "fw.h"
49
50 #define MLX4_MAC_VALID (1ull << 63)
51
52 struct mac_res {
53 struct list_head list;
54 u64 mac;
55 int ref_count;
56 u8 smac_index;
57 u8 port;
58 };
59
60 struct vlan_res {
61 struct list_head list;
62 u16 vlan;
63 int ref_count;
64 int vlan_index;
65 u8 port;
66 };
67
68 struct res_common {
69 struct list_head list;
70 struct rb_node node;
71 u64 res_id;
72 int owner;
73 int state;
74 int from_state;
75 int to_state;
76 int removing;
77 };
78
79 enum {
80 RES_ANY_BUSY = 1
81 };
82
83 struct res_gid {
84 struct list_head list;
85 u8 gid[16];
86 enum mlx4_protocol prot;
87 enum mlx4_steer_type steer;
88 u64 reg_id;
89 };
90
91 enum res_qp_states {
92 RES_QP_BUSY = RES_ANY_BUSY,
93
94 /* QP number was allocated */
95 RES_QP_RESERVED,
96
97 /* ICM memory for QP context was mapped */
98 RES_QP_MAPPED,
99
100 /* QP is in hw ownership */
101 RES_QP_HW
102 };
103
104 struct res_qp {
105 struct res_common com;
106 struct res_mtt *mtt;
107 struct res_cq *rcq;
108 struct res_cq *scq;
109 struct res_srq *srq;
110 struct list_head mcg_list;
111 spinlock_t mcg_spl;
112 int local_qpn;
113 atomic_t ref_count;
114 u32 qpc_flags;
115 /* saved qp params before VST enforcement in order to restore on VGT */
116 u8 sched_queue;
117 __be32 param3;
118 u8 vlan_control;
119 u8 fvl_rx;
120 u8 pri_path_fl;
121 u8 vlan_index;
122 u8 feup;
123 };
124
125 enum res_mtt_states {
126 RES_MTT_BUSY = RES_ANY_BUSY,
127 RES_MTT_ALLOCATED,
128 };
129
130 static inline const char *mtt_states_str(enum res_mtt_states state)
131 {
132 switch (state) {
133 case RES_MTT_BUSY: return "RES_MTT_BUSY";
134 case RES_MTT_ALLOCATED: return "RES_MTT_ALLOCATED";
135 default: return "Unknown";
136 }
137 }
138
139 struct res_mtt {
140 struct res_common com;
141 int order;
142 atomic_t ref_count;
143 };
144
145 enum res_mpt_states {
146 RES_MPT_BUSY = RES_ANY_BUSY,
147 RES_MPT_RESERVED,
148 RES_MPT_MAPPED,
149 RES_MPT_HW,
150 };
151
152 struct res_mpt {
153 struct res_common com;
154 struct res_mtt *mtt;
155 int key;
156 };
157
158 enum res_eq_states {
159 RES_EQ_BUSY = RES_ANY_BUSY,
160 RES_EQ_RESERVED,
161 RES_EQ_HW,
162 };
163
164 struct res_eq {
165 struct res_common com;
166 struct res_mtt *mtt;
167 };
168
169 enum res_cq_states {
170 RES_CQ_BUSY = RES_ANY_BUSY,
171 RES_CQ_ALLOCATED,
172 RES_CQ_HW,
173 };
174
175 struct res_cq {
176 struct res_common com;
177 struct res_mtt *mtt;
178 atomic_t ref_count;
179 };
180
181 enum res_srq_states {
182 RES_SRQ_BUSY = RES_ANY_BUSY,
183 RES_SRQ_ALLOCATED,
184 RES_SRQ_HW,
185 };
186
187 struct res_srq {
188 struct res_common com;
189 struct res_mtt *mtt;
190 struct res_cq *cq;
191 atomic_t ref_count;
192 };
193
194 enum res_counter_states {
195 RES_COUNTER_BUSY = RES_ANY_BUSY,
196 RES_COUNTER_ALLOCATED,
197 };
198
199 struct res_counter {
200 struct res_common com;
201 int port;
202 };
203
204 enum res_xrcdn_states {
205 RES_XRCD_BUSY = RES_ANY_BUSY,
206 RES_XRCD_ALLOCATED,
207 };
208
209 struct res_xrcdn {
210 struct res_common com;
211 int port;
212 };
213
214 enum res_fs_rule_states {
215 RES_FS_RULE_BUSY = RES_ANY_BUSY,
216 RES_FS_RULE_ALLOCATED,
217 };
218
219 struct res_fs_rule {
220 struct res_common com;
221 int qpn;
222 };
223
224 static int mlx4_is_eth(struct mlx4_dev *dev, int port)
225 {
226 return dev->caps.port_mask[port] == MLX4_PORT_TYPE_IB ? 0 : 1;
227 }
228
229 static void *res_tracker_lookup(struct rb_root *root, u64 res_id)
230 {
231 struct rb_node *node = root->rb_node;
232
233 while (node) {
234 struct res_common *res = container_of(node, struct res_common,
235 node);
236
237 if (res_id < res->res_id)
238 node = node->rb_left;
239 else if (res_id > res->res_id)
240 node = node->rb_right;
241 else
242 return res;
243 }
244 return NULL;
245 }
246
247 static int res_tracker_insert(struct rb_root *root, struct res_common *res)
248 {
249 struct rb_node **new = &(root->rb_node), *parent = NULL;
250
251 /* Figure out where to put new node */
252 while (*new) {
253 struct res_common *this = container_of(*new, struct res_common,
254 node);
255
256 parent = *new;
257 if (res->res_id < this->res_id)
258 new = &((*new)->rb_left);
259 else if (res->res_id > this->res_id)
260 new = &((*new)->rb_right);
261 else
262 return -EEXIST;
263 }
264
265 /* Add new node and rebalance tree. */
266 rb_link_node(&res->node, parent, new);
267 rb_insert_color(&res->node, root);
268
269 return 0;
270 }
271
272 enum qp_transition {
273 QP_TRANS_INIT2RTR,
274 QP_TRANS_RTR2RTS,
275 QP_TRANS_RTS2RTS,
276 QP_TRANS_SQERR2RTS,
277 QP_TRANS_SQD2SQD,
278 QP_TRANS_SQD2RTS
279 };
280
281 /* For Debug uses */
282 static const char *resource_str(enum mlx4_resource rt)
283 {
284 switch (rt) {
285 case RES_QP: return "RES_QP";
286 case RES_CQ: return "RES_CQ";
287 case RES_SRQ: return "RES_SRQ";
288 case RES_MPT: return "RES_MPT";
289 case RES_MTT: return "RES_MTT";
290 case RES_MAC: return "RES_MAC";
291 case RES_VLAN: return "RES_VLAN";
292 case RES_EQ: return "RES_EQ";
293 case RES_COUNTER: return "RES_COUNTER";
294 case RES_FS_RULE: return "RES_FS_RULE";
295 case RES_XRCD: return "RES_XRCD";
296 default: return "Unknown resource type !!!";
297 };
298 }
299
300 static void rem_slave_vlans(struct mlx4_dev *dev, int slave);
301 static inline int mlx4_grant_resource(struct mlx4_dev *dev, int slave,
302 enum mlx4_resource res_type, int count,
303 int port)
304 {
305 struct mlx4_priv *priv = mlx4_priv(dev);
306 struct resource_allocator *res_alloc =
307 &priv->mfunc.master.res_tracker.res_alloc[res_type];
308 int err = -EINVAL;
309 int allocated, free, reserved, guaranteed, from_free;
310 int from_rsvd;
311
312 if (slave > dev->persist->num_vfs)
313 return -EINVAL;
314
315 spin_lock(&res_alloc->alloc_lock);
316 allocated = (port > 0) ?
317 res_alloc->allocated[(port - 1) *
318 (dev->persist->num_vfs + 1) + slave] :
319 res_alloc->allocated[slave];
320 free = (port > 0) ? res_alloc->res_port_free[port - 1] :
321 res_alloc->res_free;
322 reserved = (port > 0) ? res_alloc->res_port_rsvd[port - 1] :
323 res_alloc->res_reserved;
324 guaranteed = res_alloc->guaranteed[slave];
325
326 if (allocated + count > res_alloc->quota[slave]) {
327 mlx4_warn(dev, "VF %d port %d res %s: quota exceeded, count %d alloc %d quota %d\n",
328 slave, port, resource_str(res_type), count,
329 allocated, res_alloc->quota[slave]);
330 goto out;
331 }
332
333 if (allocated + count <= guaranteed) {
334 err = 0;
335 from_rsvd = count;
336 } else {
337 /* portion may need to be obtained from free area */
338 if (guaranteed - allocated > 0)
339 from_free = count - (guaranteed - allocated);
340 else
341 from_free = count;
342
343 from_rsvd = count - from_free;
344
345 if (free - from_free >= reserved)
346 err = 0;
347 else
348 mlx4_warn(dev, "VF %d port %d res %s: free pool empty, free %d from_free %d rsvd %d\n",
349 slave, port, resource_str(res_type), free,
350 from_free, reserved);
351 }
352
353 if (!err) {
354 /* grant the request */
355 if (port > 0) {
356 res_alloc->allocated[(port - 1) *
357 (dev->persist->num_vfs + 1) + slave] += count;
358 res_alloc->res_port_free[port - 1] -= count;
359 res_alloc->res_port_rsvd[port - 1] -= from_rsvd;
360 } else {
361 res_alloc->allocated[slave] += count;
362 res_alloc->res_free -= count;
363 res_alloc->res_reserved -= from_rsvd;
364 }
365 }
366
367 out:
368 spin_unlock(&res_alloc->alloc_lock);
369 return err;
370 }
371
372 static inline void mlx4_release_resource(struct mlx4_dev *dev, int slave,
373 enum mlx4_resource res_type, int count,
374 int port)
375 {
376 struct mlx4_priv *priv = mlx4_priv(dev);
377 struct resource_allocator *res_alloc =
378 &priv->mfunc.master.res_tracker.res_alloc[res_type];
379 int allocated, guaranteed, from_rsvd;
380
381 if (slave > dev->persist->num_vfs)
382 return;
383
384 spin_lock(&res_alloc->alloc_lock);
385
386 allocated = (port > 0) ?
387 res_alloc->allocated[(port - 1) *
388 (dev->persist->num_vfs + 1) + slave] :
389 res_alloc->allocated[slave];
390 guaranteed = res_alloc->guaranteed[slave];
391
392 if (allocated - count >= guaranteed) {
393 from_rsvd = 0;
394 } else {
395 /* portion may need to be returned to reserved area */
396 if (allocated - guaranteed > 0)
397 from_rsvd = count - (allocated - guaranteed);
398 else
399 from_rsvd = count;
400 }
401
402 if (port > 0) {
403 res_alloc->allocated[(port - 1) *
404 (dev->persist->num_vfs + 1) + slave] -= count;
405 res_alloc->res_port_free[port - 1] += count;
406 res_alloc->res_port_rsvd[port - 1] += from_rsvd;
407 } else {
408 res_alloc->allocated[slave] -= count;
409 res_alloc->res_free += count;
410 res_alloc->res_reserved += from_rsvd;
411 }
412
413 spin_unlock(&res_alloc->alloc_lock);
414 return;
415 }
416
417 static inline void initialize_res_quotas(struct mlx4_dev *dev,
418 struct resource_allocator *res_alloc,
419 enum mlx4_resource res_type,
420 int vf, int num_instances)
421 {
422 res_alloc->guaranteed[vf] = num_instances /
423 (2 * (dev->persist->num_vfs + 1));
424 res_alloc->quota[vf] = (num_instances / 2) + res_alloc->guaranteed[vf];
425 if (vf == mlx4_master_func_num(dev)) {
426 res_alloc->res_free = num_instances;
427 if (res_type == RES_MTT) {
428 /* reserved mtts will be taken out of the PF allocation */
429 res_alloc->res_free += dev->caps.reserved_mtts;
430 res_alloc->guaranteed[vf] += dev->caps.reserved_mtts;
431 res_alloc->quota[vf] += dev->caps.reserved_mtts;
432 }
433 }
434 }
435
436 void mlx4_init_quotas(struct mlx4_dev *dev)
437 {
438 struct mlx4_priv *priv = mlx4_priv(dev);
439 int pf;
440
441 /* quotas for VFs are initialized in mlx4_slave_cap */
442 if (mlx4_is_slave(dev))
443 return;
444
445 if (!mlx4_is_mfunc(dev)) {
446 dev->quotas.qp = dev->caps.num_qps - dev->caps.reserved_qps -
447 mlx4_num_reserved_sqps(dev);
448 dev->quotas.cq = dev->caps.num_cqs - dev->caps.reserved_cqs;
449 dev->quotas.srq = dev->caps.num_srqs - dev->caps.reserved_srqs;
450 dev->quotas.mtt = dev->caps.num_mtts - dev->caps.reserved_mtts;
451 dev->quotas.mpt = dev->caps.num_mpts - dev->caps.reserved_mrws;
452 return;
453 }
454
455 pf = mlx4_master_func_num(dev);
456 dev->quotas.qp =
457 priv->mfunc.master.res_tracker.res_alloc[RES_QP].quota[pf];
458 dev->quotas.cq =
459 priv->mfunc.master.res_tracker.res_alloc[RES_CQ].quota[pf];
460 dev->quotas.srq =
461 priv->mfunc.master.res_tracker.res_alloc[RES_SRQ].quota[pf];
462 dev->quotas.mtt =
463 priv->mfunc.master.res_tracker.res_alloc[RES_MTT].quota[pf];
464 dev->quotas.mpt =
465 priv->mfunc.master.res_tracker.res_alloc[RES_MPT].quota[pf];
466 }
467 int mlx4_init_resource_tracker(struct mlx4_dev *dev)
468 {
469 struct mlx4_priv *priv = mlx4_priv(dev);
470 int i, j;
471 int t;
472
473 priv->mfunc.master.res_tracker.slave_list =
474 kzalloc(dev->num_slaves * sizeof(struct slave_list),
475 GFP_KERNEL);
476 if (!priv->mfunc.master.res_tracker.slave_list)
477 return -ENOMEM;
478
479 for (i = 0 ; i < dev->num_slaves; i++) {
480 for (t = 0; t < MLX4_NUM_OF_RESOURCE_TYPE; ++t)
481 INIT_LIST_HEAD(&priv->mfunc.master.res_tracker.
482 slave_list[i].res_list[t]);
483 mutex_init(&priv->mfunc.master.res_tracker.slave_list[i].mutex);
484 }
485
486 mlx4_dbg(dev, "Started init_resource_tracker: %ld slaves\n",
487 dev->num_slaves);
488 for (i = 0 ; i < MLX4_NUM_OF_RESOURCE_TYPE; i++)
489 priv->mfunc.master.res_tracker.res_tree[i] = RB_ROOT;
490
491 for (i = 0; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) {
492 struct resource_allocator *res_alloc =
493 &priv->mfunc.master.res_tracker.res_alloc[i];
494 res_alloc->quota = kmalloc((dev->persist->num_vfs + 1) *
495 sizeof(int), GFP_KERNEL);
496 res_alloc->guaranteed = kmalloc((dev->persist->num_vfs + 1) *
497 sizeof(int), GFP_KERNEL);
498 if (i == RES_MAC || i == RES_VLAN)
499 res_alloc->allocated = kzalloc(MLX4_MAX_PORTS *
500 (dev->persist->num_vfs
501 + 1) *
502 sizeof(int), GFP_KERNEL);
503 else
504 res_alloc->allocated = kzalloc((dev->persist->
505 num_vfs + 1) *
506 sizeof(int), GFP_KERNEL);
507
508 if (!res_alloc->quota || !res_alloc->guaranteed ||
509 !res_alloc->allocated)
510 goto no_mem_err;
511
512 spin_lock_init(&res_alloc->alloc_lock);
513 for (t = 0; t < dev->persist->num_vfs + 1; t++) {
514 struct mlx4_active_ports actv_ports =
515 mlx4_get_active_ports(dev, t);
516 switch (i) {
517 case RES_QP:
518 initialize_res_quotas(dev, res_alloc, RES_QP,
519 t, dev->caps.num_qps -
520 dev->caps.reserved_qps -
521 mlx4_num_reserved_sqps(dev));
522 break;
523 case RES_CQ:
524 initialize_res_quotas(dev, res_alloc, RES_CQ,
525 t, dev->caps.num_cqs -
526 dev->caps.reserved_cqs);
527 break;
528 case RES_SRQ:
529 initialize_res_quotas(dev, res_alloc, RES_SRQ,
530 t, dev->caps.num_srqs -
531 dev->caps.reserved_srqs);
532 break;
533 case RES_MPT:
534 initialize_res_quotas(dev, res_alloc, RES_MPT,
535 t, dev->caps.num_mpts -
536 dev->caps.reserved_mrws);
537 break;
538 case RES_MTT:
539 initialize_res_quotas(dev, res_alloc, RES_MTT,
540 t, dev->caps.num_mtts -
541 dev->caps.reserved_mtts);
542 break;
543 case RES_MAC:
544 if (t == mlx4_master_func_num(dev)) {
545 int max_vfs_pport = 0;
546 /* Calculate the max vfs per port for */
547 /* both ports. */
548 for (j = 0; j < dev->caps.num_ports;
549 j++) {
550 struct mlx4_slaves_pport slaves_pport =
551 mlx4_phys_to_slaves_pport(dev, j + 1);
552 unsigned current_slaves =
553 bitmap_weight(slaves_pport.slaves,
554 dev->caps.num_ports) - 1;
555 if (max_vfs_pport < current_slaves)
556 max_vfs_pport =
557 current_slaves;
558 }
559 res_alloc->quota[t] =
560 MLX4_MAX_MAC_NUM -
561 2 * max_vfs_pport;
562 res_alloc->guaranteed[t] = 2;
563 for (j = 0; j < MLX4_MAX_PORTS; j++)
564 res_alloc->res_port_free[j] =
565 MLX4_MAX_MAC_NUM;
566 } else {
567 res_alloc->quota[t] = MLX4_MAX_MAC_NUM;
568 res_alloc->guaranteed[t] = 2;
569 }
570 break;
571 case RES_VLAN:
572 if (t == mlx4_master_func_num(dev)) {
573 res_alloc->quota[t] = MLX4_MAX_VLAN_NUM;
574 res_alloc->guaranteed[t] = MLX4_MAX_VLAN_NUM / 2;
575 for (j = 0; j < MLX4_MAX_PORTS; j++)
576 res_alloc->res_port_free[j] =
577 res_alloc->quota[t];
578 } else {
579 res_alloc->quota[t] = MLX4_MAX_VLAN_NUM / 2;
580 res_alloc->guaranteed[t] = 0;
581 }
582 break;
583 case RES_COUNTER:
584 res_alloc->quota[t] = dev->caps.max_counters;
585 res_alloc->guaranteed[t] = 0;
586 if (t == mlx4_master_func_num(dev))
587 res_alloc->res_free = res_alloc->quota[t];
588 break;
589 default:
590 break;
591 }
592 if (i == RES_MAC || i == RES_VLAN) {
593 for (j = 0; j < dev->caps.num_ports; j++)
594 if (test_bit(j, actv_ports.ports))
595 res_alloc->res_port_rsvd[j] +=
596 res_alloc->guaranteed[t];
597 } else {
598 res_alloc->res_reserved += res_alloc->guaranteed[t];
599 }
600 }
601 }
602 spin_lock_init(&priv->mfunc.master.res_tracker.lock);
603 return 0;
604
605 no_mem_err:
606 for (i = 0; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) {
607 kfree(priv->mfunc.master.res_tracker.res_alloc[i].allocated);
608 priv->mfunc.master.res_tracker.res_alloc[i].allocated = NULL;
609 kfree(priv->mfunc.master.res_tracker.res_alloc[i].guaranteed);
610 priv->mfunc.master.res_tracker.res_alloc[i].guaranteed = NULL;
611 kfree(priv->mfunc.master.res_tracker.res_alloc[i].quota);
612 priv->mfunc.master.res_tracker.res_alloc[i].quota = NULL;
613 }
614 return -ENOMEM;
615 }
616
617 void mlx4_free_resource_tracker(struct mlx4_dev *dev,
618 enum mlx4_res_tracker_free_type type)
619 {
620 struct mlx4_priv *priv = mlx4_priv(dev);
621 int i;
622
623 if (priv->mfunc.master.res_tracker.slave_list) {
624 if (type != RES_TR_FREE_STRUCTS_ONLY) {
625 for (i = 0; i < dev->num_slaves; i++) {
626 if (type == RES_TR_FREE_ALL ||
627 dev->caps.function != i)
628 mlx4_delete_all_resources_for_slave(dev, i);
629 }
630 /* free master's vlans */
631 i = dev->caps.function;
632 mlx4_reset_roce_gids(dev, i);
633 mutex_lock(&priv->mfunc.master.res_tracker.slave_list[i].mutex);
634 rem_slave_vlans(dev, i);
635 mutex_unlock(&priv->mfunc.master.res_tracker.slave_list[i].mutex);
636 }
637
638 if (type != RES_TR_FREE_SLAVES_ONLY) {
639 for (i = 0; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) {
640 kfree(priv->mfunc.master.res_tracker.res_alloc[i].allocated);
641 priv->mfunc.master.res_tracker.res_alloc[i].allocated = NULL;
642 kfree(priv->mfunc.master.res_tracker.res_alloc[i].guaranteed);
643 priv->mfunc.master.res_tracker.res_alloc[i].guaranteed = NULL;
644 kfree(priv->mfunc.master.res_tracker.res_alloc[i].quota);
645 priv->mfunc.master.res_tracker.res_alloc[i].quota = NULL;
646 }
647 kfree(priv->mfunc.master.res_tracker.slave_list);
648 priv->mfunc.master.res_tracker.slave_list = NULL;
649 }
650 }
651 }
652
653 static void update_pkey_index(struct mlx4_dev *dev, int slave,
654 struct mlx4_cmd_mailbox *inbox)
655 {
656 u8 sched = *(u8 *)(inbox->buf + 64);
657 u8 orig_index = *(u8 *)(inbox->buf + 35);
658 u8 new_index;
659 struct mlx4_priv *priv = mlx4_priv(dev);
660 int port;
661
662 port = (sched >> 6 & 1) + 1;
663
664 new_index = priv->virt2phys_pkey[slave][port - 1][orig_index];
665 *(u8 *)(inbox->buf + 35) = new_index;
666 }
667
668 static void update_gid(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *inbox,
669 u8 slave)
670 {
671 struct mlx4_qp_context *qp_ctx = inbox->buf + 8;
672 enum mlx4_qp_optpar optpar = be32_to_cpu(*(__be32 *) inbox->buf);
673 u32 ts = (be32_to_cpu(qp_ctx->flags) >> 16) & 0xff;
674 int port;
675
676 if (MLX4_QP_ST_UD == ts) {
677 port = (qp_ctx->pri_path.sched_queue >> 6 & 1) + 1;
678 if (mlx4_is_eth(dev, port))
679 qp_ctx->pri_path.mgid_index =
680 mlx4_get_base_gid_ix(dev, slave, port) | 0x80;
681 else
682 qp_ctx->pri_path.mgid_index = slave | 0x80;
683
684 } else if (MLX4_QP_ST_RC == ts || MLX4_QP_ST_XRC == ts || MLX4_QP_ST_UC == ts) {
685 if (optpar & MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH) {
686 port = (qp_ctx->pri_path.sched_queue >> 6 & 1) + 1;
687 if (mlx4_is_eth(dev, port)) {
688 qp_ctx->pri_path.mgid_index +=
689 mlx4_get_base_gid_ix(dev, slave, port);
690 qp_ctx->pri_path.mgid_index &= 0x7f;
691 } else {
692 qp_ctx->pri_path.mgid_index = slave & 0x7F;
693 }
694 }
695 if (optpar & MLX4_QP_OPTPAR_ALT_ADDR_PATH) {
696 port = (qp_ctx->alt_path.sched_queue >> 6 & 1) + 1;
697 if (mlx4_is_eth(dev, port)) {
698 qp_ctx->alt_path.mgid_index +=
699 mlx4_get_base_gid_ix(dev, slave, port);
700 qp_ctx->alt_path.mgid_index &= 0x7f;
701 } else {
702 qp_ctx->alt_path.mgid_index = slave & 0x7F;
703 }
704 }
705 }
706 }
707
708 static int update_vport_qp_param(struct mlx4_dev *dev,
709 struct mlx4_cmd_mailbox *inbox,
710 u8 slave, u32 qpn)
711 {
712 struct mlx4_qp_context *qpc = inbox->buf + 8;
713 struct mlx4_vport_oper_state *vp_oper;
714 struct mlx4_priv *priv;
715 u32 qp_type;
716 int port;
717
718 port = (qpc->pri_path.sched_queue & 0x40) ? 2 : 1;
719 priv = mlx4_priv(dev);
720 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
721 qp_type = (be32_to_cpu(qpc->flags) >> 16) & 0xff;
722
723 if (MLX4_VGT != vp_oper->state.default_vlan) {
724 /* the reserved QPs (special, proxy, tunnel)
725 * do not operate over vlans
726 */
727 if (mlx4_is_qp_reserved(dev, qpn))
728 return 0;
729
730 /* force strip vlan by clear vsd, MLX QP refers to Raw Ethernet */
731 if (qp_type == MLX4_QP_ST_UD ||
732 (qp_type == MLX4_QP_ST_MLX && mlx4_is_eth(dev, port))) {
733 if (dev->caps.bmme_flags & MLX4_BMME_FLAG_VSD_INIT2RTR) {
734 *(__be32 *)inbox->buf =
735 cpu_to_be32(be32_to_cpu(*(__be32 *)inbox->buf) |
736 MLX4_QP_OPTPAR_VLAN_STRIPPING);
737 qpc->param3 &= ~cpu_to_be32(MLX4_STRIP_VLAN);
738 } else {
739 struct mlx4_update_qp_params params = {.flags = 0};
740
741 mlx4_update_qp(dev, qpn, MLX4_UPDATE_QP_VSD, &params);
742 }
743 }
744
745 if (vp_oper->state.link_state == IFLA_VF_LINK_STATE_DISABLE &&
746 dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_UPDATE_QP) {
747 qpc->pri_path.vlan_control =
748 MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
749 MLX4_VLAN_CTRL_ETH_TX_BLOCK_PRIO_TAGGED |
750 MLX4_VLAN_CTRL_ETH_TX_BLOCK_UNTAGGED |
751 MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED |
752 MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED |
753 MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED;
754 } else if (0 != vp_oper->state.default_vlan) {
755 qpc->pri_path.vlan_control =
756 MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
757 MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED |
758 MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED;
759 } else { /* priority tagged */
760 qpc->pri_path.vlan_control =
761 MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
762 MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED;
763 }
764
765 qpc->pri_path.fvl_rx |= MLX4_FVL_RX_FORCE_ETH_VLAN;
766 qpc->pri_path.vlan_index = vp_oper->vlan_idx;
767 qpc->pri_path.fl |= MLX4_FL_CV | MLX4_FL_ETH_HIDE_CQE_VLAN;
768 qpc->pri_path.feup |= MLX4_FEUP_FORCE_ETH_UP | MLX4_FVL_FORCE_ETH_VLAN;
769 qpc->pri_path.sched_queue &= 0xC7;
770 qpc->pri_path.sched_queue |= (vp_oper->state.default_qos) << 3;
771 }
772 if (vp_oper->state.spoofchk) {
773 qpc->pri_path.feup |= MLX4_FSM_FORCE_ETH_SRC_MAC;
774 qpc->pri_path.grh_mylmc = (0x80 & qpc->pri_path.grh_mylmc) + vp_oper->mac_idx;
775 }
776 return 0;
777 }
778
779 static int mpt_mask(struct mlx4_dev *dev)
780 {
781 return dev->caps.num_mpts - 1;
782 }
783
784 static void *find_res(struct mlx4_dev *dev, u64 res_id,
785 enum mlx4_resource type)
786 {
787 struct mlx4_priv *priv = mlx4_priv(dev);
788
789 return res_tracker_lookup(&priv->mfunc.master.res_tracker.res_tree[type],
790 res_id);
791 }
792
793 static int get_res(struct mlx4_dev *dev, int slave, u64 res_id,
794 enum mlx4_resource type,
795 void *res)
796 {
797 struct res_common *r;
798 int err = 0;
799
800 spin_lock_irq(mlx4_tlock(dev));
801 r = find_res(dev, res_id, type);
802 if (!r) {
803 err = -ENONET;
804 goto exit;
805 }
806
807 if (r->state == RES_ANY_BUSY) {
808 err = -EBUSY;
809 goto exit;
810 }
811
812 if (r->owner != slave) {
813 err = -EPERM;
814 goto exit;
815 }
816
817 r->from_state = r->state;
818 r->state = RES_ANY_BUSY;
819
820 if (res)
821 *((struct res_common **)res) = r;
822
823 exit:
824 spin_unlock_irq(mlx4_tlock(dev));
825 return err;
826 }
827
828 int mlx4_get_slave_from_resource_id(struct mlx4_dev *dev,
829 enum mlx4_resource type,
830 u64 res_id, int *slave)
831 {
832
833 struct res_common *r;
834 int err = -ENOENT;
835 int id = res_id;
836
837 if (type == RES_QP)
838 id &= 0x7fffff;
839 spin_lock(mlx4_tlock(dev));
840
841 r = find_res(dev, id, type);
842 if (r) {
843 *slave = r->owner;
844 err = 0;
845 }
846 spin_unlock(mlx4_tlock(dev));
847
848 return err;
849 }
850
851 static void put_res(struct mlx4_dev *dev, int slave, u64 res_id,
852 enum mlx4_resource type)
853 {
854 struct res_common *r;
855
856 spin_lock_irq(mlx4_tlock(dev));
857 r = find_res(dev, res_id, type);
858 if (r)
859 r->state = r->from_state;
860 spin_unlock_irq(mlx4_tlock(dev));
861 }
862
863 static struct res_common *alloc_qp_tr(int id)
864 {
865 struct res_qp *ret;
866
867 ret = kzalloc(sizeof *ret, GFP_KERNEL);
868 if (!ret)
869 return NULL;
870
871 ret->com.res_id = id;
872 ret->com.state = RES_QP_RESERVED;
873 ret->local_qpn = id;
874 INIT_LIST_HEAD(&ret->mcg_list);
875 spin_lock_init(&ret->mcg_spl);
876 atomic_set(&ret->ref_count, 0);
877
878 return &ret->com;
879 }
880
881 static struct res_common *alloc_mtt_tr(int id, int order)
882 {
883 struct res_mtt *ret;
884
885 ret = kzalloc(sizeof *ret, GFP_KERNEL);
886 if (!ret)
887 return NULL;
888
889 ret->com.res_id = id;
890 ret->order = order;
891 ret->com.state = RES_MTT_ALLOCATED;
892 atomic_set(&ret->ref_count, 0);
893
894 return &ret->com;
895 }
896
897 static struct res_common *alloc_mpt_tr(int id, int key)
898 {
899 struct res_mpt *ret;
900
901 ret = kzalloc(sizeof *ret, GFP_KERNEL);
902 if (!ret)
903 return NULL;
904
905 ret->com.res_id = id;
906 ret->com.state = RES_MPT_RESERVED;
907 ret->key = key;
908
909 return &ret->com;
910 }
911
912 static struct res_common *alloc_eq_tr(int id)
913 {
914 struct res_eq *ret;
915
916 ret = kzalloc(sizeof *ret, GFP_KERNEL);
917 if (!ret)
918 return NULL;
919
920 ret->com.res_id = id;
921 ret->com.state = RES_EQ_RESERVED;
922
923 return &ret->com;
924 }
925
926 static struct res_common *alloc_cq_tr(int id)
927 {
928 struct res_cq *ret;
929
930 ret = kzalloc(sizeof *ret, GFP_KERNEL);
931 if (!ret)
932 return NULL;
933
934 ret->com.res_id = id;
935 ret->com.state = RES_CQ_ALLOCATED;
936 atomic_set(&ret->ref_count, 0);
937
938 return &ret->com;
939 }
940
941 static struct res_common *alloc_srq_tr(int id)
942 {
943 struct res_srq *ret;
944
945 ret = kzalloc(sizeof *ret, GFP_KERNEL);
946 if (!ret)
947 return NULL;
948
949 ret->com.res_id = id;
950 ret->com.state = RES_SRQ_ALLOCATED;
951 atomic_set(&ret->ref_count, 0);
952
953 return &ret->com;
954 }
955
956 static struct res_common *alloc_counter_tr(int id)
957 {
958 struct res_counter *ret;
959
960 ret = kzalloc(sizeof *ret, GFP_KERNEL);
961 if (!ret)
962 return NULL;
963
964 ret->com.res_id = id;
965 ret->com.state = RES_COUNTER_ALLOCATED;
966
967 return &ret->com;
968 }
969
970 static struct res_common *alloc_xrcdn_tr(int id)
971 {
972 struct res_xrcdn *ret;
973
974 ret = kzalloc(sizeof *ret, GFP_KERNEL);
975 if (!ret)
976 return NULL;
977
978 ret->com.res_id = id;
979 ret->com.state = RES_XRCD_ALLOCATED;
980
981 return &ret->com;
982 }
983
984 static struct res_common *alloc_fs_rule_tr(u64 id, int qpn)
985 {
986 struct res_fs_rule *ret;
987
988 ret = kzalloc(sizeof *ret, GFP_KERNEL);
989 if (!ret)
990 return NULL;
991
992 ret->com.res_id = id;
993 ret->com.state = RES_FS_RULE_ALLOCATED;
994 ret->qpn = qpn;
995 return &ret->com;
996 }
997
998 static struct res_common *alloc_tr(u64 id, enum mlx4_resource type, int slave,
999 int extra)
1000 {
1001 struct res_common *ret;
1002
1003 switch (type) {
1004 case RES_QP:
1005 ret = alloc_qp_tr(id);
1006 break;
1007 case RES_MPT:
1008 ret = alloc_mpt_tr(id, extra);
1009 break;
1010 case RES_MTT:
1011 ret = alloc_mtt_tr(id, extra);
1012 break;
1013 case RES_EQ:
1014 ret = alloc_eq_tr(id);
1015 break;
1016 case RES_CQ:
1017 ret = alloc_cq_tr(id);
1018 break;
1019 case RES_SRQ:
1020 ret = alloc_srq_tr(id);
1021 break;
1022 case RES_MAC:
1023 pr_err("implementation missing\n");
1024 return NULL;
1025 case RES_COUNTER:
1026 ret = alloc_counter_tr(id);
1027 break;
1028 case RES_XRCD:
1029 ret = alloc_xrcdn_tr(id);
1030 break;
1031 case RES_FS_RULE:
1032 ret = alloc_fs_rule_tr(id, extra);
1033 break;
1034 default:
1035 return NULL;
1036 }
1037 if (ret)
1038 ret->owner = slave;
1039
1040 return ret;
1041 }
1042
1043 static int add_res_range(struct mlx4_dev *dev, int slave, u64 base, int count,
1044 enum mlx4_resource type, int extra)
1045 {
1046 int i;
1047 int err;
1048 struct mlx4_priv *priv = mlx4_priv(dev);
1049 struct res_common **res_arr;
1050 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1051 struct rb_root *root = &tracker->res_tree[type];
1052
1053 res_arr = kzalloc(count * sizeof *res_arr, GFP_KERNEL);
1054 if (!res_arr)
1055 return -ENOMEM;
1056
1057 for (i = 0; i < count; ++i) {
1058 res_arr[i] = alloc_tr(base + i, type, slave, extra);
1059 if (!res_arr[i]) {
1060 for (--i; i >= 0; --i)
1061 kfree(res_arr[i]);
1062
1063 kfree(res_arr);
1064 return -ENOMEM;
1065 }
1066 }
1067
1068 spin_lock_irq(mlx4_tlock(dev));
1069 for (i = 0; i < count; ++i) {
1070 if (find_res(dev, base + i, type)) {
1071 err = -EEXIST;
1072 goto undo;
1073 }
1074 err = res_tracker_insert(root, res_arr[i]);
1075 if (err)
1076 goto undo;
1077 list_add_tail(&res_arr[i]->list,
1078 &tracker->slave_list[slave].res_list[type]);
1079 }
1080 spin_unlock_irq(mlx4_tlock(dev));
1081 kfree(res_arr);
1082
1083 return 0;
1084
1085 undo:
1086 for (--i; i >= base; --i)
1087 rb_erase(&res_arr[i]->node, root);
1088
1089 spin_unlock_irq(mlx4_tlock(dev));
1090
1091 for (i = 0; i < count; ++i)
1092 kfree(res_arr[i]);
1093
1094 kfree(res_arr);
1095
1096 return err;
1097 }
1098
1099 static int remove_qp_ok(struct res_qp *res)
1100 {
1101 if (res->com.state == RES_QP_BUSY || atomic_read(&res->ref_count) ||
1102 !list_empty(&res->mcg_list)) {
1103 pr_err("resource tracker: fail to remove qp, state %d, ref_count %d\n",
1104 res->com.state, atomic_read(&res->ref_count));
1105 return -EBUSY;
1106 } else if (res->com.state != RES_QP_RESERVED) {
1107 return -EPERM;
1108 }
1109
1110 return 0;
1111 }
1112
1113 static int remove_mtt_ok(struct res_mtt *res, int order)
1114 {
1115 if (res->com.state == RES_MTT_BUSY ||
1116 atomic_read(&res->ref_count)) {
1117 pr_devel("%s-%d: state %s, ref_count %d\n",
1118 __func__, __LINE__,
1119 mtt_states_str(res->com.state),
1120 atomic_read(&res->ref_count));
1121 return -EBUSY;
1122 } else if (res->com.state != RES_MTT_ALLOCATED)
1123 return -EPERM;
1124 else if (res->order != order)
1125 return -EINVAL;
1126
1127 return 0;
1128 }
1129
1130 static int remove_mpt_ok(struct res_mpt *res)
1131 {
1132 if (res->com.state == RES_MPT_BUSY)
1133 return -EBUSY;
1134 else if (res->com.state != RES_MPT_RESERVED)
1135 return -EPERM;
1136
1137 return 0;
1138 }
1139
1140 static int remove_eq_ok(struct res_eq *res)
1141 {
1142 if (res->com.state == RES_MPT_BUSY)
1143 return -EBUSY;
1144 else if (res->com.state != RES_MPT_RESERVED)
1145 return -EPERM;
1146
1147 return 0;
1148 }
1149
1150 static int remove_counter_ok(struct res_counter *res)
1151 {
1152 if (res->com.state == RES_COUNTER_BUSY)
1153 return -EBUSY;
1154 else if (res->com.state != RES_COUNTER_ALLOCATED)
1155 return -EPERM;
1156
1157 return 0;
1158 }
1159
1160 static int remove_xrcdn_ok(struct res_xrcdn *res)
1161 {
1162 if (res->com.state == RES_XRCD_BUSY)
1163 return -EBUSY;
1164 else if (res->com.state != RES_XRCD_ALLOCATED)
1165 return -EPERM;
1166
1167 return 0;
1168 }
1169
1170 static int remove_fs_rule_ok(struct res_fs_rule *res)
1171 {
1172 if (res->com.state == RES_FS_RULE_BUSY)
1173 return -EBUSY;
1174 else if (res->com.state != RES_FS_RULE_ALLOCATED)
1175 return -EPERM;
1176
1177 return 0;
1178 }
1179
1180 static int remove_cq_ok(struct res_cq *res)
1181 {
1182 if (res->com.state == RES_CQ_BUSY)
1183 return -EBUSY;
1184 else if (res->com.state != RES_CQ_ALLOCATED)
1185 return -EPERM;
1186
1187 return 0;
1188 }
1189
1190 static int remove_srq_ok(struct res_srq *res)
1191 {
1192 if (res->com.state == RES_SRQ_BUSY)
1193 return -EBUSY;
1194 else if (res->com.state != RES_SRQ_ALLOCATED)
1195 return -EPERM;
1196
1197 return 0;
1198 }
1199
1200 static int remove_ok(struct res_common *res, enum mlx4_resource type, int extra)
1201 {
1202 switch (type) {
1203 case RES_QP:
1204 return remove_qp_ok((struct res_qp *)res);
1205 case RES_CQ:
1206 return remove_cq_ok((struct res_cq *)res);
1207 case RES_SRQ:
1208 return remove_srq_ok((struct res_srq *)res);
1209 case RES_MPT:
1210 return remove_mpt_ok((struct res_mpt *)res);
1211 case RES_MTT:
1212 return remove_mtt_ok((struct res_mtt *)res, extra);
1213 case RES_MAC:
1214 return -ENOSYS;
1215 case RES_EQ:
1216 return remove_eq_ok((struct res_eq *)res);
1217 case RES_COUNTER:
1218 return remove_counter_ok((struct res_counter *)res);
1219 case RES_XRCD:
1220 return remove_xrcdn_ok((struct res_xrcdn *)res);
1221 case RES_FS_RULE:
1222 return remove_fs_rule_ok((struct res_fs_rule *)res);
1223 default:
1224 return -EINVAL;
1225 }
1226 }
1227
1228 static int rem_res_range(struct mlx4_dev *dev, int slave, u64 base, int count,
1229 enum mlx4_resource type, int extra)
1230 {
1231 u64 i;
1232 int err;
1233 struct mlx4_priv *priv = mlx4_priv(dev);
1234 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1235 struct res_common *r;
1236
1237 spin_lock_irq(mlx4_tlock(dev));
1238 for (i = base; i < base + count; ++i) {
1239 r = res_tracker_lookup(&tracker->res_tree[type], i);
1240 if (!r) {
1241 err = -ENOENT;
1242 goto out;
1243 }
1244 if (r->owner != slave) {
1245 err = -EPERM;
1246 goto out;
1247 }
1248 err = remove_ok(r, type, extra);
1249 if (err)
1250 goto out;
1251 }
1252
1253 for (i = base; i < base + count; ++i) {
1254 r = res_tracker_lookup(&tracker->res_tree[type], i);
1255 rb_erase(&r->node, &tracker->res_tree[type]);
1256 list_del(&r->list);
1257 kfree(r);
1258 }
1259 err = 0;
1260
1261 out:
1262 spin_unlock_irq(mlx4_tlock(dev));
1263
1264 return err;
1265 }
1266
1267 static int qp_res_start_move_to(struct mlx4_dev *dev, int slave, int qpn,
1268 enum res_qp_states state, struct res_qp **qp,
1269 int alloc)
1270 {
1271 struct mlx4_priv *priv = mlx4_priv(dev);
1272 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1273 struct res_qp *r;
1274 int err = 0;
1275
1276 spin_lock_irq(mlx4_tlock(dev));
1277 r = res_tracker_lookup(&tracker->res_tree[RES_QP], qpn);
1278 if (!r)
1279 err = -ENOENT;
1280 else if (r->com.owner != slave)
1281 err = -EPERM;
1282 else {
1283 switch (state) {
1284 case RES_QP_BUSY:
1285 mlx4_dbg(dev, "%s: failed RES_QP, 0x%llx\n",
1286 __func__, r->com.res_id);
1287 err = -EBUSY;
1288 break;
1289
1290 case RES_QP_RESERVED:
1291 if (r->com.state == RES_QP_MAPPED && !alloc)
1292 break;
1293
1294 mlx4_dbg(dev, "failed RES_QP, 0x%llx\n", r->com.res_id);
1295 err = -EINVAL;
1296 break;
1297
1298 case RES_QP_MAPPED:
1299 if ((r->com.state == RES_QP_RESERVED && alloc) ||
1300 r->com.state == RES_QP_HW)
1301 break;
1302 else {
1303 mlx4_dbg(dev, "failed RES_QP, 0x%llx\n",
1304 r->com.res_id);
1305 err = -EINVAL;
1306 }
1307
1308 break;
1309
1310 case RES_QP_HW:
1311 if (r->com.state != RES_QP_MAPPED)
1312 err = -EINVAL;
1313 break;
1314 default:
1315 err = -EINVAL;
1316 }
1317
1318 if (!err) {
1319 r->com.from_state = r->com.state;
1320 r->com.to_state = state;
1321 r->com.state = RES_QP_BUSY;
1322 if (qp)
1323 *qp = r;
1324 }
1325 }
1326
1327 spin_unlock_irq(mlx4_tlock(dev));
1328
1329 return err;
1330 }
1331
1332 static int mr_res_start_move_to(struct mlx4_dev *dev, int slave, int index,
1333 enum res_mpt_states state, struct res_mpt **mpt)
1334 {
1335 struct mlx4_priv *priv = mlx4_priv(dev);
1336 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1337 struct res_mpt *r;
1338 int err = 0;
1339
1340 spin_lock_irq(mlx4_tlock(dev));
1341 r = res_tracker_lookup(&tracker->res_tree[RES_MPT], index);
1342 if (!r)
1343 err = -ENOENT;
1344 else if (r->com.owner != slave)
1345 err = -EPERM;
1346 else {
1347 switch (state) {
1348 case RES_MPT_BUSY:
1349 err = -EINVAL;
1350 break;
1351
1352 case RES_MPT_RESERVED:
1353 if (r->com.state != RES_MPT_MAPPED)
1354 err = -EINVAL;
1355 break;
1356
1357 case RES_MPT_MAPPED:
1358 if (r->com.state != RES_MPT_RESERVED &&
1359 r->com.state != RES_MPT_HW)
1360 err = -EINVAL;
1361 break;
1362
1363 case RES_MPT_HW:
1364 if (r->com.state != RES_MPT_MAPPED)
1365 err = -EINVAL;
1366 break;
1367 default:
1368 err = -EINVAL;
1369 }
1370
1371 if (!err) {
1372 r->com.from_state = r->com.state;
1373 r->com.to_state = state;
1374 r->com.state = RES_MPT_BUSY;
1375 if (mpt)
1376 *mpt = r;
1377 }
1378 }
1379
1380 spin_unlock_irq(mlx4_tlock(dev));
1381
1382 return err;
1383 }
1384
1385 static int eq_res_start_move_to(struct mlx4_dev *dev, int slave, int index,
1386 enum res_eq_states state, struct res_eq **eq)
1387 {
1388 struct mlx4_priv *priv = mlx4_priv(dev);
1389 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1390 struct res_eq *r;
1391 int err = 0;
1392
1393 spin_lock_irq(mlx4_tlock(dev));
1394 r = res_tracker_lookup(&tracker->res_tree[RES_EQ], index);
1395 if (!r)
1396 err = -ENOENT;
1397 else if (r->com.owner != slave)
1398 err = -EPERM;
1399 else {
1400 switch (state) {
1401 case RES_EQ_BUSY:
1402 err = -EINVAL;
1403 break;
1404
1405 case RES_EQ_RESERVED:
1406 if (r->com.state != RES_EQ_HW)
1407 err = -EINVAL;
1408 break;
1409
1410 case RES_EQ_HW:
1411 if (r->com.state != RES_EQ_RESERVED)
1412 err = -EINVAL;
1413 break;
1414
1415 default:
1416 err = -EINVAL;
1417 }
1418
1419 if (!err) {
1420 r->com.from_state = r->com.state;
1421 r->com.to_state = state;
1422 r->com.state = RES_EQ_BUSY;
1423 if (eq)
1424 *eq = r;
1425 }
1426 }
1427
1428 spin_unlock_irq(mlx4_tlock(dev));
1429
1430 return err;
1431 }
1432
1433 static int cq_res_start_move_to(struct mlx4_dev *dev, int slave, int cqn,
1434 enum res_cq_states state, struct res_cq **cq)
1435 {
1436 struct mlx4_priv *priv = mlx4_priv(dev);
1437 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1438 struct res_cq *r;
1439 int err;
1440
1441 spin_lock_irq(mlx4_tlock(dev));
1442 r = res_tracker_lookup(&tracker->res_tree[RES_CQ], cqn);
1443 if (!r) {
1444 err = -ENOENT;
1445 } else if (r->com.owner != slave) {
1446 err = -EPERM;
1447 } else if (state == RES_CQ_ALLOCATED) {
1448 if (r->com.state != RES_CQ_HW)
1449 err = -EINVAL;
1450 else if (atomic_read(&r->ref_count))
1451 err = -EBUSY;
1452 else
1453 err = 0;
1454 } else if (state != RES_CQ_HW || r->com.state != RES_CQ_ALLOCATED) {
1455 err = -EINVAL;
1456 } else {
1457 err = 0;
1458 }
1459
1460 if (!err) {
1461 r->com.from_state = r->com.state;
1462 r->com.to_state = state;
1463 r->com.state = RES_CQ_BUSY;
1464 if (cq)
1465 *cq = r;
1466 }
1467
1468 spin_unlock_irq(mlx4_tlock(dev));
1469
1470 return err;
1471 }
1472
1473 static int srq_res_start_move_to(struct mlx4_dev *dev, int slave, int index,
1474 enum res_srq_states state, struct res_srq **srq)
1475 {
1476 struct mlx4_priv *priv = mlx4_priv(dev);
1477 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1478 struct res_srq *r;
1479 int err = 0;
1480
1481 spin_lock_irq(mlx4_tlock(dev));
1482 r = res_tracker_lookup(&tracker->res_tree[RES_SRQ], index);
1483 if (!r) {
1484 err = -ENOENT;
1485 } else if (r->com.owner != slave) {
1486 err = -EPERM;
1487 } else if (state == RES_SRQ_ALLOCATED) {
1488 if (r->com.state != RES_SRQ_HW)
1489 err = -EINVAL;
1490 else if (atomic_read(&r->ref_count))
1491 err = -EBUSY;
1492 } else if (state != RES_SRQ_HW || r->com.state != RES_SRQ_ALLOCATED) {
1493 err = -EINVAL;
1494 }
1495
1496 if (!err) {
1497 r->com.from_state = r->com.state;
1498 r->com.to_state = state;
1499 r->com.state = RES_SRQ_BUSY;
1500 if (srq)
1501 *srq = r;
1502 }
1503
1504 spin_unlock_irq(mlx4_tlock(dev));
1505
1506 return err;
1507 }
1508
1509 static void res_abort_move(struct mlx4_dev *dev, int slave,
1510 enum mlx4_resource type, int id)
1511 {
1512 struct mlx4_priv *priv = mlx4_priv(dev);
1513 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1514 struct res_common *r;
1515
1516 spin_lock_irq(mlx4_tlock(dev));
1517 r = res_tracker_lookup(&tracker->res_tree[type], id);
1518 if (r && (r->owner == slave))
1519 r->state = r->from_state;
1520 spin_unlock_irq(mlx4_tlock(dev));
1521 }
1522
1523 static void res_end_move(struct mlx4_dev *dev, int slave,
1524 enum mlx4_resource type, int id)
1525 {
1526 struct mlx4_priv *priv = mlx4_priv(dev);
1527 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1528 struct res_common *r;
1529
1530 spin_lock_irq(mlx4_tlock(dev));
1531 r = res_tracker_lookup(&tracker->res_tree[type], id);
1532 if (r && (r->owner == slave))
1533 r->state = r->to_state;
1534 spin_unlock_irq(mlx4_tlock(dev));
1535 }
1536
1537 static int valid_reserved(struct mlx4_dev *dev, int slave, int qpn)
1538 {
1539 return mlx4_is_qp_reserved(dev, qpn) &&
1540 (mlx4_is_master(dev) || mlx4_is_guest_proxy(dev, slave, qpn));
1541 }
1542
1543 static int fw_reserved(struct mlx4_dev *dev, int qpn)
1544 {
1545 return qpn < dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW];
1546 }
1547
1548 static int qp_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1549 u64 in_param, u64 *out_param)
1550 {
1551 int err;
1552 int count;
1553 int align;
1554 int base;
1555 int qpn;
1556 u8 flags;
1557
1558 switch (op) {
1559 case RES_OP_RESERVE:
1560 count = get_param_l(&in_param) & 0xffffff;
1561 /* Turn off all unsupported QP allocation flags that the
1562 * slave tries to set.
1563 */
1564 flags = (get_param_l(&in_param) >> 24) & dev->caps.alloc_res_qp_mask;
1565 align = get_param_h(&in_param);
1566 err = mlx4_grant_resource(dev, slave, RES_QP, count, 0);
1567 if (err)
1568 return err;
1569
1570 err = __mlx4_qp_reserve_range(dev, count, align, &base, flags);
1571 if (err) {
1572 mlx4_release_resource(dev, slave, RES_QP, count, 0);
1573 return err;
1574 }
1575
1576 err = add_res_range(dev, slave, base, count, RES_QP, 0);
1577 if (err) {
1578 mlx4_release_resource(dev, slave, RES_QP, count, 0);
1579 __mlx4_qp_release_range(dev, base, count);
1580 return err;
1581 }
1582 set_param_l(out_param, base);
1583 break;
1584 case RES_OP_MAP_ICM:
1585 qpn = get_param_l(&in_param) & 0x7fffff;
1586 if (valid_reserved(dev, slave, qpn)) {
1587 err = add_res_range(dev, slave, qpn, 1, RES_QP, 0);
1588 if (err)
1589 return err;
1590 }
1591
1592 err = qp_res_start_move_to(dev, slave, qpn, RES_QP_MAPPED,
1593 NULL, 1);
1594 if (err)
1595 return err;
1596
1597 if (!fw_reserved(dev, qpn)) {
1598 err = __mlx4_qp_alloc_icm(dev, qpn, GFP_KERNEL);
1599 if (err) {
1600 res_abort_move(dev, slave, RES_QP, qpn);
1601 return err;
1602 }
1603 }
1604
1605 res_end_move(dev, slave, RES_QP, qpn);
1606 break;
1607
1608 default:
1609 err = -EINVAL;
1610 break;
1611 }
1612 return err;
1613 }
1614
1615 static int mtt_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1616 u64 in_param, u64 *out_param)
1617 {
1618 int err = -EINVAL;
1619 int base;
1620 int order;
1621
1622 if (op != RES_OP_RESERVE_AND_MAP)
1623 return err;
1624
1625 order = get_param_l(&in_param);
1626
1627 err = mlx4_grant_resource(dev, slave, RES_MTT, 1 << order, 0);
1628 if (err)
1629 return err;
1630
1631 base = __mlx4_alloc_mtt_range(dev, order);
1632 if (base == -1) {
1633 mlx4_release_resource(dev, slave, RES_MTT, 1 << order, 0);
1634 return -ENOMEM;
1635 }
1636
1637 err = add_res_range(dev, slave, base, 1, RES_MTT, order);
1638 if (err) {
1639 mlx4_release_resource(dev, slave, RES_MTT, 1 << order, 0);
1640 __mlx4_free_mtt_range(dev, base, order);
1641 } else {
1642 set_param_l(out_param, base);
1643 }
1644
1645 return err;
1646 }
1647
1648 static int mpt_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1649 u64 in_param, u64 *out_param)
1650 {
1651 int err = -EINVAL;
1652 int index;
1653 int id;
1654 struct res_mpt *mpt;
1655
1656 switch (op) {
1657 case RES_OP_RESERVE:
1658 err = mlx4_grant_resource(dev, slave, RES_MPT, 1, 0);
1659 if (err)
1660 break;
1661
1662 index = __mlx4_mpt_reserve(dev);
1663 if (index == -1) {
1664 mlx4_release_resource(dev, slave, RES_MPT, 1, 0);
1665 break;
1666 }
1667 id = index & mpt_mask(dev);
1668
1669 err = add_res_range(dev, slave, id, 1, RES_MPT, index);
1670 if (err) {
1671 mlx4_release_resource(dev, slave, RES_MPT, 1, 0);
1672 __mlx4_mpt_release(dev, index);
1673 break;
1674 }
1675 set_param_l(out_param, index);
1676 break;
1677 case RES_OP_MAP_ICM:
1678 index = get_param_l(&in_param);
1679 id = index & mpt_mask(dev);
1680 err = mr_res_start_move_to(dev, slave, id,
1681 RES_MPT_MAPPED, &mpt);
1682 if (err)
1683 return err;
1684
1685 err = __mlx4_mpt_alloc_icm(dev, mpt->key, GFP_KERNEL);
1686 if (err) {
1687 res_abort_move(dev, slave, RES_MPT, id);
1688 return err;
1689 }
1690
1691 res_end_move(dev, slave, RES_MPT, id);
1692 break;
1693 }
1694 return err;
1695 }
1696
1697 static int cq_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1698 u64 in_param, u64 *out_param)
1699 {
1700 int cqn;
1701 int err;
1702
1703 switch (op) {
1704 case RES_OP_RESERVE_AND_MAP:
1705 err = mlx4_grant_resource(dev, slave, RES_CQ, 1, 0);
1706 if (err)
1707 break;
1708
1709 err = __mlx4_cq_alloc_icm(dev, &cqn);
1710 if (err) {
1711 mlx4_release_resource(dev, slave, RES_CQ, 1, 0);
1712 break;
1713 }
1714
1715 err = add_res_range(dev, slave, cqn, 1, RES_CQ, 0);
1716 if (err) {
1717 mlx4_release_resource(dev, slave, RES_CQ, 1, 0);
1718 __mlx4_cq_free_icm(dev, cqn);
1719 break;
1720 }
1721
1722 set_param_l(out_param, cqn);
1723 break;
1724
1725 default:
1726 err = -EINVAL;
1727 }
1728
1729 return err;
1730 }
1731
1732 static int srq_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1733 u64 in_param, u64 *out_param)
1734 {
1735 int srqn;
1736 int err;
1737
1738 switch (op) {
1739 case RES_OP_RESERVE_AND_MAP:
1740 err = mlx4_grant_resource(dev, slave, RES_SRQ, 1, 0);
1741 if (err)
1742 break;
1743
1744 err = __mlx4_srq_alloc_icm(dev, &srqn);
1745 if (err) {
1746 mlx4_release_resource(dev, slave, RES_SRQ, 1, 0);
1747 break;
1748 }
1749
1750 err = add_res_range(dev, slave, srqn, 1, RES_SRQ, 0);
1751 if (err) {
1752 mlx4_release_resource(dev, slave, RES_SRQ, 1, 0);
1753 __mlx4_srq_free_icm(dev, srqn);
1754 break;
1755 }
1756
1757 set_param_l(out_param, srqn);
1758 break;
1759
1760 default:
1761 err = -EINVAL;
1762 }
1763
1764 return err;
1765 }
1766
1767 static int mac_find_smac_ix_in_slave(struct mlx4_dev *dev, int slave, int port,
1768 u8 smac_index, u64 *mac)
1769 {
1770 struct mlx4_priv *priv = mlx4_priv(dev);
1771 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1772 struct list_head *mac_list =
1773 &tracker->slave_list[slave].res_list[RES_MAC];
1774 struct mac_res *res, *tmp;
1775
1776 list_for_each_entry_safe(res, tmp, mac_list, list) {
1777 if (res->smac_index == smac_index && res->port == (u8) port) {
1778 *mac = res->mac;
1779 return 0;
1780 }
1781 }
1782 return -ENOENT;
1783 }
1784
1785 static int mac_add_to_slave(struct mlx4_dev *dev, int slave, u64 mac, int port, u8 smac_index)
1786 {
1787 struct mlx4_priv *priv = mlx4_priv(dev);
1788 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1789 struct list_head *mac_list =
1790 &tracker->slave_list[slave].res_list[RES_MAC];
1791 struct mac_res *res, *tmp;
1792
1793 list_for_each_entry_safe(res, tmp, mac_list, list) {
1794 if (res->mac == mac && res->port == (u8) port) {
1795 /* mac found. update ref count */
1796 ++res->ref_count;
1797 return 0;
1798 }
1799 }
1800
1801 if (mlx4_grant_resource(dev, slave, RES_MAC, 1, port))
1802 return -EINVAL;
1803 res = kzalloc(sizeof *res, GFP_KERNEL);
1804 if (!res) {
1805 mlx4_release_resource(dev, slave, RES_MAC, 1, port);
1806 return -ENOMEM;
1807 }
1808 res->mac = mac;
1809 res->port = (u8) port;
1810 res->smac_index = smac_index;
1811 res->ref_count = 1;
1812 list_add_tail(&res->list,
1813 &tracker->slave_list[slave].res_list[RES_MAC]);
1814 return 0;
1815 }
1816
1817 static void mac_del_from_slave(struct mlx4_dev *dev, int slave, u64 mac,
1818 int port)
1819 {
1820 struct mlx4_priv *priv = mlx4_priv(dev);
1821 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1822 struct list_head *mac_list =
1823 &tracker->slave_list[slave].res_list[RES_MAC];
1824 struct mac_res *res, *tmp;
1825
1826 list_for_each_entry_safe(res, tmp, mac_list, list) {
1827 if (res->mac == mac && res->port == (u8) port) {
1828 if (!--res->ref_count) {
1829 list_del(&res->list);
1830 mlx4_release_resource(dev, slave, RES_MAC, 1, port);
1831 kfree(res);
1832 }
1833 break;
1834 }
1835 }
1836 }
1837
1838 static void rem_slave_macs(struct mlx4_dev *dev, int slave)
1839 {
1840 struct mlx4_priv *priv = mlx4_priv(dev);
1841 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1842 struct list_head *mac_list =
1843 &tracker->slave_list[slave].res_list[RES_MAC];
1844 struct mac_res *res, *tmp;
1845 int i;
1846
1847 list_for_each_entry_safe(res, tmp, mac_list, list) {
1848 list_del(&res->list);
1849 /* dereference the mac the num times the slave referenced it */
1850 for (i = 0; i < res->ref_count; i++)
1851 __mlx4_unregister_mac(dev, res->port, res->mac);
1852 mlx4_release_resource(dev, slave, RES_MAC, 1, res->port);
1853 kfree(res);
1854 }
1855 }
1856
1857 static int mac_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1858 u64 in_param, u64 *out_param, int in_port)
1859 {
1860 int err = -EINVAL;
1861 int port;
1862 u64 mac;
1863 u8 smac_index;
1864
1865 if (op != RES_OP_RESERVE_AND_MAP)
1866 return err;
1867
1868 port = !in_port ? get_param_l(out_param) : in_port;
1869 port = mlx4_slave_convert_port(
1870 dev, slave, port);
1871
1872 if (port < 0)
1873 return -EINVAL;
1874 mac = in_param;
1875
1876 err = __mlx4_register_mac(dev, port, mac);
1877 if (err >= 0) {
1878 smac_index = err;
1879 set_param_l(out_param, err);
1880 err = 0;
1881 }
1882
1883 if (!err) {
1884 err = mac_add_to_slave(dev, slave, mac, port, smac_index);
1885 if (err)
1886 __mlx4_unregister_mac(dev, port, mac);
1887 }
1888 return err;
1889 }
1890
1891 static int vlan_add_to_slave(struct mlx4_dev *dev, int slave, u16 vlan,
1892 int port, int vlan_index)
1893 {
1894 struct mlx4_priv *priv = mlx4_priv(dev);
1895 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1896 struct list_head *vlan_list =
1897 &tracker->slave_list[slave].res_list[RES_VLAN];
1898 struct vlan_res *res, *tmp;
1899
1900 list_for_each_entry_safe(res, tmp, vlan_list, list) {
1901 if (res->vlan == vlan && res->port == (u8) port) {
1902 /* vlan found. update ref count */
1903 ++res->ref_count;
1904 return 0;
1905 }
1906 }
1907
1908 if (mlx4_grant_resource(dev, slave, RES_VLAN, 1, port))
1909 return -EINVAL;
1910 res = kzalloc(sizeof(*res), GFP_KERNEL);
1911 if (!res) {
1912 mlx4_release_resource(dev, slave, RES_VLAN, 1, port);
1913 return -ENOMEM;
1914 }
1915 res->vlan = vlan;
1916 res->port = (u8) port;
1917 res->vlan_index = vlan_index;
1918 res->ref_count = 1;
1919 list_add_tail(&res->list,
1920 &tracker->slave_list[slave].res_list[RES_VLAN]);
1921 return 0;
1922 }
1923
1924
1925 static void vlan_del_from_slave(struct mlx4_dev *dev, int slave, u16 vlan,
1926 int port)
1927 {
1928 struct mlx4_priv *priv = mlx4_priv(dev);
1929 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1930 struct list_head *vlan_list =
1931 &tracker->slave_list[slave].res_list[RES_VLAN];
1932 struct vlan_res *res, *tmp;
1933
1934 list_for_each_entry_safe(res, tmp, vlan_list, list) {
1935 if (res->vlan == vlan && res->port == (u8) port) {
1936 if (!--res->ref_count) {
1937 list_del(&res->list);
1938 mlx4_release_resource(dev, slave, RES_VLAN,
1939 1, port);
1940 kfree(res);
1941 }
1942 break;
1943 }
1944 }
1945 }
1946
1947 static void rem_slave_vlans(struct mlx4_dev *dev, int slave)
1948 {
1949 struct mlx4_priv *priv = mlx4_priv(dev);
1950 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1951 struct list_head *vlan_list =
1952 &tracker->slave_list[slave].res_list[RES_VLAN];
1953 struct vlan_res *res, *tmp;
1954 int i;
1955
1956 list_for_each_entry_safe(res, tmp, vlan_list, list) {
1957 list_del(&res->list);
1958 /* dereference the vlan the num times the slave referenced it */
1959 for (i = 0; i < res->ref_count; i++)
1960 __mlx4_unregister_vlan(dev, res->port, res->vlan);
1961 mlx4_release_resource(dev, slave, RES_VLAN, 1, res->port);
1962 kfree(res);
1963 }
1964 }
1965
1966 static int vlan_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1967 u64 in_param, u64 *out_param, int in_port)
1968 {
1969 struct mlx4_priv *priv = mlx4_priv(dev);
1970 struct mlx4_slave_state *slave_state = priv->mfunc.master.slave_state;
1971 int err;
1972 u16 vlan;
1973 int vlan_index;
1974 int port;
1975
1976 port = !in_port ? get_param_l(out_param) : in_port;
1977
1978 if (!port || op != RES_OP_RESERVE_AND_MAP)
1979 return -EINVAL;
1980
1981 port = mlx4_slave_convert_port(
1982 dev, slave, port);
1983
1984 if (port < 0)
1985 return -EINVAL;
1986 /* upstream kernels had NOP for reg/unreg vlan. Continue this. */
1987 if (!in_port && port > 0 && port <= dev->caps.num_ports) {
1988 slave_state[slave].old_vlan_api = true;
1989 return 0;
1990 }
1991
1992 vlan = (u16) in_param;
1993
1994 err = __mlx4_register_vlan(dev, port, vlan, &vlan_index);
1995 if (!err) {
1996 set_param_l(out_param, (u32) vlan_index);
1997 err = vlan_add_to_slave(dev, slave, vlan, port, vlan_index);
1998 if (err)
1999 __mlx4_unregister_vlan(dev, port, vlan);
2000 }
2001 return err;
2002 }
2003
2004 static int counter_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2005 u64 in_param, u64 *out_param)
2006 {
2007 u32 index;
2008 int err;
2009
2010 if (op != RES_OP_RESERVE)
2011 return -EINVAL;
2012
2013 err = mlx4_grant_resource(dev, slave, RES_COUNTER, 1, 0);
2014 if (err)
2015 return err;
2016
2017 err = __mlx4_counter_alloc(dev, &index);
2018 if (err) {
2019 mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0);
2020 return err;
2021 }
2022
2023 err = add_res_range(dev, slave, index, 1, RES_COUNTER, 0);
2024 if (err) {
2025 __mlx4_counter_free(dev, index);
2026 mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0);
2027 } else {
2028 set_param_l(out_param, index);
2029 }
2030
2031 return err;
2032 }
2033
2034 static int xrcdn_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2035 u64 in_param, u64 *out_param)
2036 {
2037 u32 xrcdn;
2038 int err;
2039
2040 if (op != RES_OP_RESERVE)
2041 return -EINVAL;
2042
2043 err = __mlx4_xrcd_alloc(dev, &xrcdn);
2044 if (err)
2045 return err;
2046
2047 err = add_res_range(dev, slave, xrcdn, 1, RES_XRCD, 0);
2048 if (err)
2049 __mlx4_xrcd_free(dev, xrcdn);
2050 else
2051 set_param_l(out_param, xrcdn);
2052
2053 return err;
2054 }
2055
2056 int mlx4_ALLOC_RES_wrapper(struct mlx4_dev *dev, int slave,
2057 struct mlx4_vhcr *vhcr,
2058 struct mlx4_cmd_mailbox *inbox,
2059 struct mlx4_cmd_mailbox *outbox,
2060 struct mlx4_cmd_info *cmd)
2061 {
2062 int err;
2063 int alop = vhcr->op_modifier;
2064
2065 switch (vhcr->in_modifier & 0xFF) {
2066 case RES_QP:
2067 err = qp_alloc_res(dev, slave, vhcr->op_modifier, alop,
2068 vhcr->in_param, &vhcr->out_param);
2069 break;
2070
2071 case RES_MTT:
2072 err = mtt_alloc_res(dev, slave, vhcr->op_modifier, alop,
2073 vhcr->in_param, &vhcr->out_param);
2074 break;
2075
2076 case RES_MPT:
2077 err = mpt_alloc_res(dev, slave, vhcr->op_modifier, alop,
2078 vhcr->in_param, &vhcr->out_param);
2079 break;
2080
2081 case RES_CQ:
2082 err = cq_alloc_res(dev, slave, vhcr->op_modifier, alop,
2083 vhcr->in_param, &vhcr->out_param);
2084 break;
2085
2086 case RES_SRQ:
2087 err = srq_alloc_res(dev, slave, vhcr->op_modifier, alop,
2088 vhcr->in_param, &vhcr->out_param);
2089 break;
2090
2091 case RES_MAC:
2092 err = mac_alloc_res(dev, slave, vhcr->op_modifier, alop,
2093 vhcr->in_param, &vhcr->out_param,
2094 (vhcr->in_modifier >> 8) & 0xFF);
2095 break;
2096
2097 case RES_VLAN:
2098 err = vlan_alloc_res(dev, slave, vhcr->op_modifier, alop,
2099 vhcr->in_param, &vhcr->out_param,
2100 (vhcr->in_modifier >> 8) & 0xFF);
2101 break;
2102
2103 case RES_COUNTER:
2104 err = counter_alloc_res(dev, slave, vhcr->op_modifier, alop,
2105 vhcr->in_param, &vhcr->out_param);
2106 break;
2107
2108 case RES_XRCD:
2109 err = xrcdn_alloc_res(dev, slave, vhcr->op_modifier, alop,
2110 vhcr->in_param, &vhcr->out_param);
2111 break;
2112
2113 default:
2114 err = -EINVAL;
2115 break;
2116 }
2117
2118 return err;
2119 }
2120
2121 static int qp_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2122 u64 in_param)
2123 {
2124 int err;
2125 int count;
2126 int base;
2127 int qpn;
2128
2129 switch (op) {
2130 case RES_OP_RESERVE:
2131 base = get_param_l(&in_param) & 0x7fffff;
2132 count = get_param_h(&in_param);
2133 err = rem_res_range(dev, slave, base, count, RES_QP, 0);
2134 if (err)
2135 break;
2136 mlx4_release_resource(dev, slave, RES_QP, count, 0);
2137 __mlx4_qp_release_range(dev, base, count);
2138 break;
2139 case RES_OP_MAP_ICM:
2140 qpn = get_param_l(&in_param) & 0x7fffff;
2141 err = qp_res_start_move_to(dev, slave, qpn, RES_QP_RESERVED,
2142 NULL, 0);
2143 if (err)
2144 return err;
2145
2146 if (!fw_reserved(dev, qpn))
2147 __mlx4_qp_free_icm(dev, qpn);
2148
2149 res_end_move(dev, slave, RES_QP, qpn);
2150
2151 if (valid_reserved(dev, slave, qpn))
2152 err = rem_res_range(dev, slave, qpn, 1, RES_QP, 0);
2153 break;
2154 default:
2155 err = -EINVAL;
2156 break;
2157 }
2158 return err;
2159 }
2160
2161 static int mtt_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2162 u64 in_param, u64 *out_param)
2163 {
2164 int err = -EINVAL;
2165 int base;
2166 int order;
2167
2168 if (op != RES_OP_RESERVE_AND_MAP)
2169 return err;
2170
2171 base = get_param_l(&in_param);
2172 order = get_param_h(&in_param);
2173 err = rem_res_range(dev, slave, base, 1, RES_MTT, order);
2174 if (!err) {
2175 mlx4_release_resource(dev, slave, RES_MTT, 1 << order, 0);
2176 __mlx4_free_mtt_range(dev, base, order);
2177 }
2178 return err;
2179 }
2180
2181 static int mpt_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2182 u64 in_param)
2183 {
2184 int err = -EINVAL;
2185 int index;
2186 int id;
2187 struct res_mpt *mpt;
2188
2189 switch (op) {
2190 case RES_OP_RESERVE:
2191 index = get_param_l(&in_param);
2192 id = index & mpt_mask(dev);
2193 err = get_res(dev, slave, id, RES_MPT, &mpt);
2194 if (err)
2195 break;
2196 index = mpt->key;
2197 put_res(dev, slave, id, RES_MPT);
2198
2199 err = rem_res_range(dev, slave, id, 1, RES_MPT, 0);
2200 if (err)
2201 break;
2202 mlx4_release_resource(dev, slave, RES_MPT, 1, 0);
2203 __mlx4_mpt_release(dev, index);
2204 break;
2205 case RES_OP_MAP_ICM:
2206 index = get_param_l(&in_param);
2207 id = index & mpt_mask(dev);
2208 err = mr_res_start_move_to(dev, slave, id,
2209 RES_MPT_RESERVED, &mpt);
2210 if (err)
2211 return err;
2212
2213 __mlx4_mpt_free_icm(dev, mpt->key);
2214 res_end_move(dev, slave, RES_MPT, id);
2215 return err;
2216 break;
2217 default:
2218 err = -EINVAL;
2219 break;
2220 }
2221 return err;
2222 }
2223
2224 static int cq_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2225 u64 in_param, u64 *out_param)
2226 {
2227 int cqn;
2228 int err;
2229
2230 switch (op) {
2231 case RES_OP_RESERVE_AND_MAP:
2232 cqn = get_param_l(&in_param);
2233 err = rem_res_range(dev, slave, cqn, 1, RES_CQ, 0);
2234 if (err)
2235 break;
2236
2237 mlx4_release_resource(dev, slave, RES_CQ, 1, 0);
2238 __mlx4_cq_free_icm(dev, cqn);
2239 break;
2240
2241 default:
2242 err = -EINVAL;
2243 break;
2244 }
2245
2246 return err;
2247 }
2248
2249 static int srq_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2250 u64 in_param, u64 *out_param)
2251 {
2252 int srqn;
2253 int err;
2254
2255 switch (op) {
2256 case RES_OP_RESERVE_AND_MAP:
2257 srqn = get_param_l(&in_param);
2258 err = rem_res_range(dev, slave, srqn, 1, RES_SRQ, 0);
2259 if (err)
2260 break;
2261
2262 mlx4_release_resource(dev, slave, RES_SRQ, 1, 0);
2263 __mlx4_srq_free_icm(dev, srqn);
2264 break;
2265
2266 default:
2267 err = -EINVAL;
2268 break;
2269 }
2270
2271 return err;
2272 }
2273
2274 static int mac_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2275 u64 in_param, u64 *out_param, int in_port)
2276 {
2277 int port;
2278 int err = 0;
2279
2280 switch (op) {
2281 case RES_OP_RESERVE_AND_MAP:
2282 port = !in_port ? get_param_l(out_param) : in_port;
2283 port = mlx4_slave_convert_port(
2284 dev, slave, port);
2285
2286 if (port < 0)
2287 return -EINVAL;
2288 mac_del_from_slave(dev, slave, in_param, port);
2289 __mlx4_unregister_mac(dev, port, in_param);
2290 break;
2291 default:
2292 err = -EINVAL;
2293 break;
2294 }
2295
2296 return err;
2297
2298 }
2299
2300 static int vlan_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2301 u64 in_param, u64 *out_param, int port)
2302 {
2303 struct mlx4_priv *priv = mlx4_priv(dev);
2304 struct mlx4_slave_state *slave_state = priv->mfunc.master.slave_state;
2305 int err = 0;
2306
2307 port = mlx4_slave_convert_port(
2308 dev, slave, port);
2309
2310 if (port < 0)
2311 return -EINVAL;
2312 switch (op) {
2313 case RES_OP_RESERVE_AND_MAP:
2314 if (slave_state[slave].old_vlan_api)
2315 return 0;
2316 if (!port)
2317 return -EINVAL;
2318 vlan_del_from_slave(dev, slave, in_param, port);
2319 __mlx4_unregister_vlan(dev, port, in_param);
2320 break;
2321 default:
2322 err = -EINVAL;
2323 break;
2324 }
2325
2326 return err;
2327 }
2328
2329 static int counter_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2330 u64 in_param, u64 *out_param)
2331 {
2332 int index;
2333 int err;
2334
2335 if (op != RES_OP_RESERVE)
2336 return -EINVAL;
2337
2338 index = get_param_l(&in_param);
2339 err = rem_res_range(dev, slave, index, 1, RES_COUNTER, 0);
2340 if (err)
2341 return err;
2342
2343 __mlx4_counter_free(dev, index);
2344 mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0);
2345
2346 return err;
2347 }
2348
2349 static int xrcdn_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2350 u64 in_param, u64 *out_param)
2351 {
2352 int xrcdn;
2353 int err;
2354
2355 if (op != RES_OP_RESERVE)
2356 return -EINVAL;
2357
2358 xrcdn = get_param_l(&in_param);
2359 err = rem_res_range(dev, slave, xrcdn, 1, RES_XRCD, 0);
2360 if (err)
2361 return err;
2362
2363 __mlx4_xrcd_free(dev, xrcdn);
2364
2365 return err;
2366 }
2367
2368 int mlx4_FREE_RES_wrapper(struct mlx4_dev *dev, int slave,
2369 struct mlx4_vhcr *vhcr,
2370 struct mlx4_cmd_mailbox *inbox,
2371 struct mlx4_cmd_mailbox *outbox,
2372 struct mlx4_cmd_info *cmd)
2373 {
2374 int err = -EINVAL;
2375 int alop = vhcr->op_modifier;
2376
2377 switch (vhcr->in_modifier & 0xFF) {
2378 case RES_QP:
2379 err = qp_free_res(dev, slave, vhcr->op_modifier, alop,
2380 vhcr->in_param);
2381 break;
2382
2383 case RES_MTT:
2384 err = mtt_free_res(dev, slave, vhcr->op_modifier, alop,
2385 vhcr->in_param, &vhcr->out_param);
2386 break;
2387
2388 case RES_MPT:
2389 err = mpt_free_res(dev, slave, vhcr->op_modifier, alop,
2390 vhcr->in_param);
2391 break;
2392
2393 case RES_CQ:
2394 err = cq_free_res(dev, slave, vhcr->op_modifier, alop,
2395 vhcr->in_param, &vhcr->out_param);
2396 break;
2397
2398 case RES_SRQ:
2399 err = srq_free_res(dev, slave, vhcr->op_modifier, alop,
2400 vhcr->in_param, &vhcr->out_param);
2401 break;
2402
2403 case RES_MAC:
2404 err = mac_free_res(dev, slave, vhcr->op_modifier, alop,
2405 vhcr->in_param, &vhcr->out_param,
2406 (vhcr->in_modifier >> 8) & 0xFF);
2407 break;
2408
2409 case RES_VLAN:
2410 err = vlan_free_res(dev, slave, vhcr->op_modifier, alop,
2411 vhcr->in_param, &vhcr->out_param,
2412 (vhcr->in_modifier >> 8) & 0xFF);
2413 break;
2414
2415 case RES_COUNTER:
2416 err = counter_free_res(dev, slave, vhcr->op_modifier, alop,
2417 vhcr->in_param, &vhcr->out_param);
2418 break;
2419
2420 case RES_XRCD:
2421 err = xrcdn_free_res(dev, slave, vhcr->op_modifier, alop,
2422 vhcr->in_param, &vhcr->out_param);
2423
2424 default:
2425 break;
2426 }
2427 return err;
2428 }
2429
2430 /* ugly but other choices are uglier */
2431 static int mr_phys_mpt(struct mlx4_mpt_entry *mpt)
2432 {
2433 return (be32_to_cpu(mpt->flags) >> 9) & 1;
2434 }
2435
2436 static int mr_get_mtt_addr(struct mlx4_mpt_entry *mpt)
2437 {
2438 return (int)be64_to_cpu(mpt->mtt_addr) & 0xfffffff8;
2439 }
2440
2441 static int mr_get_mtt_size(struct mlx4_mpt_entry *mpt)
2442 {
2443 return be32_to_cpu(mpt->mtt_sz);
2444 }
2445
2446 static u32 mr_get_pd(struct mlx4_mpt_entry *mpt)
2447 {
2448 return be32_to_cpu(mpt->pd_flags) & 0x00ffffff;
2449 }
2450
2451 static int mr_is_fmr(struct mlx4_mpt_entry *mpt)
2452 {
2453 return be32_to_cpu(mpt->pd_flags) & MLX4_MPT_PD_FLAG_FAST_REG;
2454 }
2455
2456 static int mr_is_bind_enabled(struct mlx4_mpt_entry *mpt)
2457 {
2458 return be32_to_cpu(mpt->flags) & MLX4_MPT_FLAG_BIND_ENABLE;
2459 }
2460
2461 static int mr_is_region(struct mlx4_mpt_entry *mpt)
2462 {
2463 return be32_to_cpu(mpt->flags) & MLX4_MPT_FLAG_REGION;
2464 }
2465
2466 static int qp_get_mtt_addr(struct mlx4_qp_context *qpc)
2467 {
2468 return be32_to_cpu(qpc->mtt_base_addr_l) & 0xfffffff8;
2469 }
2470
2471 static int srq_get_mtt_addr(struct mlx4_srq_context *srqc)
2472 {
2473 return be32_to_cpu(srqc->mtt_base_addr_l) & 0xfffffff8;
2474 }
2475
2476 static int qp_get_mtt_size(struct mlx4_qp_context *qpc)
2477 {
2478 int page_shift = (qpc->log_page_size & 0x3f) + 12;
2479 int log_sq_size = (qpc->sq_size_stride >> 3) & 0xf;
2480 int log_sq_sride = qpc->sq_size_stride & 7;
2481 int log_rq_size = (qpc->rq_size_stride >> 3) & 0xf;
2482 int log_rq_stride = qpc->rq_size_stride & 7;
2483 int srq = (be32_to_cpu(qpc->srqn) >> 24) & 1;
2484 int rss = (be32_to_cpu(qpc->flags) >> 13) & 1;
2485 u32 ts = (be32_to_cpu(qpc->flags) >> 16) & 0xff;
2486 int xrc = (ts == MLX4_QP_ST_XRC) ? 1 : 0;
2487 int sq_size;
2488 int rq_size;
2489 int total_pages;
2490 int total_mem;
2491 int page_offset = (be32_to_cpu(qpc->params2) >> 6) & 0x3f;
2492
2493 sq_size = 1 << (log_sq_size + log_sq_sride + 4);
2494 rq_size = (srq|rss|xrc) ? 0 : (1 << (log_rq_size + log_rq_stride + 4));
2495 total_mem = sq_size + rq_size;
2496 total_pages =
2497 roundup_pow_of_two((total_mem + (page_offset << 6)) >>
2498 page_shift);
2499
2500 return total_pages;
2501 }
2502
2503 static int check_mtt_range(struct mlx4_dev *dev, int slave, int start,
2504 int size, struct res_mtt *mtt)
2505 {
2506 int res_start = mtt->com.res_id;
2507 int res_size = (1 << mtt->order);
2508
2509 if (start < res_start || start + size > res_start + res_size)
2510 return -EPERM;
2511 return 0;
2512 }
2513
2514 int mlx4_SW2HW_MPT_wrapper(struct mlx4_dev *dev, int slave,
2515 struct mlx4_vhcr *vhcr,
2516 struct mlx4_cmd_mailbox *inbox,
2517 struct mlx4_cmd_mailbox *outbox,
2518 struct mlx4_cmd_info *cmd)
2519 {
2520 int err;
2521 int index = vhcr->in_modifier;
2522 struct res_mtt *mtt;
2523 struct res_mpt *mpt;
2524 int mtt_base = mr_get_mtt_addr(inbox->buf) / dev->caps.mtt_entry_sz;
2525 int phys;
2526 int id;
2527 u32 pd;
2528 int pd_slave;
2529
2530 id = index & mpt_mask(dev);
2531 err = mr_res_start_move_to(dev, slave, id, RES_MPT_HW, &mpt);
2532 if (err)
2533 return err;
2534
2535 /* Disable memory windows for VFs. */
2536 if (!mr_is_region(inbox->buf)) {
2537 err = -EPERM;
2538 goto ex_abort;
2539 }
2540
2541 /* Make sure that the PD bits related to the slave id are zeros. */
2542 pd = mr_get_pd(inbox->buf);
2543 pd_slave = (pd >> 17) & 0x7f;
2544 if (pd_slave != 0 && pd_slave != slave) {
2545 err = -EPERM;
2546 goto ex_abort;
2547 }
2548
2549 if (mr_is_fmr(inbox->buf)) {
2550 /* FMR and Bind Enable are forbidden in slave devices. */
2551 if (mr_is_bind_enabled(inbox->buf)) {
2552 err = -EPERM;
2553 goto ex_abort;
2554 }
2555 /* FMR and Memory Windows are also forbidden. */
2556 if (!mr_is_region(inbox->buf)) {
2557 err = -EPERM;
2558 goto ex_abort;
2559 }
2560 }
2561
2562 phys = mr_phys_mpt(inbox->buf);
2563 if (!phys) {
2564 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt);
2565 if (err)
2566 goto ex_abort;
2567
2568 err = check_mtt_range(dev, slave, mtt_base,
2569 mr_get_mtt_size(inbox->buf), mtt);
2570 if (err)
2571 goto ex_put;
2572
2573 mpt->mtt = mtt;
2574 }
2575
2576 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
2577 if (err)
2578 goto ex_put;
2579
2580 if (!phys) {
2581 atomic_inc(&mtt->ref_count);
2582 put_res(dev, slave, mtt->com.res_id, RES_MTT);
2583 }
2584
2585 res_end_move(dev, slave, RES_MPT, id);
2586 return 0;
2587
2588 ex_put:
2589 if (!phys)
2590 put_res(dev, slave, mtt->com.res_id, RES_MTT);
2591 ex_abort:
2592 res_abort_move(dev, slave, RES_MPT, id);
2593
2594 return err;
2595 }
2596
2597 int mlx4_HW2SW_MPT_wrapper(struct mlx4_dev *dev, int slave,
2598 struct mlx4_vhcr *vhcr,
2599 struct mlx4_cmd_mailbox *inbox,
2600 struct mlx4_cmd_mailbox *outbox,
2601 struct mlx4_cmd_info *cmd)
2602 {
2603 int err;
2604 int index = vhcr->in_modifier;
2605 struct res_mpt *mpt;
2606 int id;
2607
2608 id = index & mpt_mask(dev);
2609 err = mr_res_start_move_to(dev, slave, id, RES_MPT_MAPPED, &mpt);
2610 if (err)
2611 return err;
2612
2613 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
2614 if (err)
2615 goto ex_abort;
2616
2617 if (mpt->mtt)
2618 atomic_dec(&mpt->mtt->ref_count);
2619
2620 res_end_move(dev, slave, RES_MPT, id);
2621 return 0;
2622
2623 ex_abort:
2624 res_abort_move(dev, slave, RES_MPT, id);
2625
2626 return err;
2627 }
2628
2629 int mlx4_QUERY_MPT_wrapper(struct mlx4_dev *dev, int slave,
2630 struct mlx4_vhcr *vhcr,
2631 struct mlx4_cmd_mailbox *inbox,
2632 struct mlx4_cmd_mailbox *outbox,
2633 struct mlx4_cmd_info *cmd)
2634 {
2635 int err;
2636 int index = vhcr->in_modifier;
2637 struct res_mpt *mpt;
2638 int id;
2639
2640 id = index & mpt_mask(dev);
2641 err = get_res(dev, slave, id, RES_MPT, &mpt);
2642 if (err)
2643 return err;
2644
2645 if (mpt->com.from_state == RES_MPT_MAPPED) {
2646 /* In order to allow rereg in SRIOV, we need to alter the MPT entry. To do
2647 * that, the VF must read the MPT. But since the MPT entry memory is not
2648 * in the VF's virtual memory space, it must use QUERY_MPT to obtain the
2649 * entry contents. To guarantee that the MPT cannot be changed, the driver
2650 * must perform HW2SW_MPT before this query and return the MPT entry to HW
2651 * ownership fofollowing the change. The change here allows the VF to
2652 * perform QUERY_MPT also when the entry is in SW ownership.
2653 */
2654 struct mlx4_mpt_entry *mpt_entry = mlx4_table_find(
2655 &mlx4_priv(dev)->mr_table.dmpt_table,
2656 mpt->key, NULL);
2657
2658 if (NULL == mpt_entry || NULL == outbox->buf) {
2659 err = -EINVAL;
2660 goto out;
2661 }
2662
2663 memcpy(outbox->buf, mpt_entry, sizeof(*mpt_entry));
2664
2665 err = 0;
2666 } else if (mpt->com.from_state == RES_MPT_HW) {
2667 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
2668 } else {
2669 err = -EBUSY;
2670 goto out;
2671 }
2672
2673
2674 out:
2675 put_res(dev, slave, id, RES_MPT);
2676 return err;
2677 }
2678
2679 static int qp_get_rcqn(struct mlx4_qp_context *qpc)
2680 {
2681 return be32_to_cpu(qpc->cqn_recv) & 0xffffff;
2682 }
2683
2684 static int qp_get_scqn(struct mlx4_qp_context *qpc)
2685 {
2686 return be32_to_cpu(qpc->cqn_send) & 0xffffff;
2687 }
2688
2689 static u32 qp_get_srqn(struct mlx4_qp_context *qpc)
2690 {
2691 return be32_to_cpu(qpc->srqn) & 0x1ffffff;
2692 }
2693
2694 static void adjust_proxy_tun_qkey(struct mlx4_dev *dev, struct mlx4_vhcr *vhcr,
2695 struct mlx4_qp_context *context)
2696 {
2697 u32 qpn = vhcr->in_modifier & 0xffffff;
2698 u32 qkey = 0;
2699
2700 if (mlx4_get_parav_qkey(dev, qpn, &qkey))
2701 return;
2702
2703 /* adjust qkey in qp context */
2704 context->qkey = cpu_to_be32(qkey);
2705 }
2706
2707 int mlx4_RST2INIT_QP_wrapper(struct mlx4_dev *dev, int slave,
2708 struct mlx4_vhcr *vhcr,
2709 struct mlx4_cmd_mailbox *inbox,
2710 struct mlx4_cmd_mailbox *outbox,
2711 struct mlx4_cmd_info *cmd)
2712 {
2713 int err;
2714 int qpn = vhcr->in_modifier & 0x7fffff;
2715 struct res_mtt *mtt;
2716 struct res_qp *qp;
2717 struct mlx4_qp_context *qpc = inbox->buf + 8;
2718 int mtt_base = qp_get_mtt_addr(qpc) / dev->caps.mtt_entry_sz;
2719 int mtt_size = qp_get_mtt_size(qpc);
2720 struct res_cq *rcq;
2721 struct res_cq *scq;
2722 int rcqn = qp_get_rcqn(qpc);
2723 int scqn = qp_get_scqn(qpc);
2724 u32 srqn = qp_get_srqn(qpc) & 0xffffff;
2725 int use_srq = (qp_get_srqn(qpc) >> 24) & 1;
2726 struct res_srq *srq;
2727 int local_qpn = be32_to_cpu(qpc->local_qpn) & 0xffffff;
2728
2729 err = qp_res_start_move_to(dev, slave, qpn, RES_QP_HW, &qp, 0);
2730 if (err)
2731 return err;
2732 qp->local_qpn = local_qpn;
2733 qp->sched_queue = 0;
2734 qp->param3 = 0;
2735 qp->vlan_control = 0;
2736 qp->fvl_rx = 0;
2737 qp->pri_path_fl = 0;
2738 qp->vlan_index = 0;
2739 qp->feup = 0;
2740 qp->qpc_flags = be32_to_cpu(qpc->flags);
2741
2742 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt);
2743 if (err)
2744 goto ex_abort;
2745
2746 err = check_mtt_range(dev, slave, mtt_base, mtt_size, mtt);
2747 if (err)
2748 goto ex_put_mtt;
2749
2750 err = get_res(dev, slave, rcqn, RES_CQ, &rcq);
2751 if (err)
2752 goto ex_put_mtt;
2753
2754 if (scqn != rcqn) {
2755 err = get_res(dev, slave, scqn, RES_CQ, &scq);
2756 if (err)
2757 goto ex_put_rcq;
2758 } else
2759 scq = rcq;
2760
2761 if (use_srq) {
2762 err = get_res(dev, slave, srqn, RES_SRQ, &srq);
2763 if (err)
2764 goto ex_put_scq;
2765 }
2766
2767 adjust_proxy_tun_qkey(dev, vhcr, qpc);
2768 update_pkey_index(dev, slave, inbox);
2769 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
2770 if (err)
2771 goto ex_put_srq;
2772 atomic_inc(&mtt->ref_count);
2773 qp->mtt = mtt;
2774 atomic_inc(&rcq->ref_count);
2775 qp->rcq = rcq;
2776 atomic_inc(&scq->ref_count);
2777 qp->scq = scq;
2778
2779 if (scqn != rcqn)
2780 put_res(dev, slave, scqn, RES_CQ);
2781
2782 if (use_srq) {
2783 atomic_inc(&srq->ref_count);
2784 put_res(dev, slave, srqn, RES_SRQ);
2785 qp->srq = srq;
2786 }
2787 put_res(dev, slave, rcqn, RES_CQ);
2788 put_res(dev, slave, mtt_base, RES_MTT);
2789 res_end_move(dev, slave, RES_QP, qpn);
2790
2791 return 0;
2792
2793 ex_put_srq:
2794 if (use_srq)
2795 put_res(dev, slave, srqn, RES_SRQ);
2796 ex_put_scq:
2797 if (scqn != rcqn)
2798 put_res(dev, slave, scqn, RES_CQ);
2799 ex_put_rcq:
2800 put_res(dev, slave, rcqn, RES_CQ);
2801 ex_put_mtt:
2802 put_res(dev, slave, mtt_base, RES_MTT);
2803 ex_abort:
2804 res_abort_move(dev, slave, RES_QP, qpn);
2805
2806 return err;
2807 }
2808
2809 static int eq_get_mtt_addr(struct mlx4_eq_context *eqc)
2810 {
2811 return be32_to_cpu(eqc->mtt_base_addr_l) & 0xfffffff8;
2812 }
2813
2814 static int eq_get_mtt_size(struct mlx4_eq_context *eqc)
2815 {
2816 int log_eq_size = eqc->log_eq_size & 0x1f;
2817 int page_shift = (eqc->log_page_size & 0x3f) + 12;
2818
2819 if (log_eq_size + 5 < page_shift)
2820 return 1;
2821
2822 return 1 << (log_eq_size + 5 - page_shift);
2823 }
2824
2825 static int cq_get_mtt_addr(struct mlx4_cq_context *cqc)
2826 {
2827 return be32_to_cpu(cqc->mtt_base_addr_l) & 0xfffffff8;
2828 }
2829
2830 static int cq_get_mtt_size(struct mlx4_cq_context *cqc)
2831 {
2832 int log_cq_size = (be32_to_cpu(cqc->logsize_usrpage) >> 24) & 0x1f;
2833 int page_shift = (cqc->log_page_size & 0x3f) + 12;
2834
2835 if (log_cq_size + 5 < page_shift)
2836 return 1;
2837
2838 return 1 << (log_cq_size + 5 - page_shift);
2839 }
2840
2841 int mlx4_SW2HW_EQ_wrapper(struct mlx4_dev *dev, int slave,
2842 struct mlx4_vhcr *vhcr,
2843 struct mlx4_cmd_mailbox *inbox,
2844 struct mlx4_cmd_mailbox *outbox,
2845 struct mlx4_cmd_info *cmd)
2846 {
2847 int err;
2848 int eqn = vhcr->in_modifier;
2849 int res_id = (slave << 8) | eqn;
2850 struct mlx4_eq_context *eqc = inbox->buf;
2851 int mtt_base = eq_get_mtt_addr(eqc) / dev->caps.mtt_entry_sz;
2852 int mtt_size = eq_get_mtt_size(eqc);
2853 struct res_eq *eq;
2854 struct res_mtt *mtt;
2855
2856 err = add_res_range(dev, slave, res_id, 1, RES_EQ, 0);
2857 if (err)
2858 return err;
2859 err = eq_res_start_move_to(dev, slave, res_id, RES_EQ_HW, &eq);
2860 if (err)
2861 goto out_add;
2862
2863 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt);
2864 if (err)
2865 goto out_move;
2866
2867 err = check_mtt_range(dev, slave, mtt_base, mtt_size, mtt);
2868 if (err)
2869 goto out_put;
2870
2871 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
2872 if (err)
2873 goto out_put;
2874
2875 atomic_inc(&mtt->ref_count);
2876 eq->mtt = mtt;
2877 put_res(dev, slave, mtt->com.res_id, RES_MTT);
2878 res_end_move(dev, slave, RES_EQ, res_id);
2879 return 0;
2880
2881 out_put:
2882 put_res(dev, slave, mtt->com.res_id, RES_MTT);
2883 out_move:
2884 res_abort_move(dev, slave, RES_EQ, res_id);
2885 out_add:
2886 rem_res_range(dev, slave, res_id, 1, RES_EQ, 0);
2887 return err;
2888 }
2889
2890 int mlx4_CONFIG_DEV_wrapper(struct mlx4_dev *dev, int slave,
2891 struct mlx4_vhcr *vhcr,
2892 struct mlx4_cmd_mailbox *inbox,
2893 struct mlx4_cmd_mailbox *outbox,
2894 struct mlx4_cmd_info *cmd)
2895 {
2896 int err;
2897 u8 get = vhcr->op_modifier;
2898
2899 if (get != 1)
2900 return -EPERM;
2901
2902 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
2903
2904 return err;
2905 }
2906
2907 static int get_containing_mtt(struct mlx4_dev *dev, int slave, int start,
2908 int len, struct res_mtt **res)
2909 {
2910 struct mlx4_priv *priv = mlx4_priv(dev);
2911 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
2912 struct res_mtt *mtt;
2913 int err = -EINVAL;
2914
2915 spin_lock_irq(mlx4_tlock(dev));
2916 list_for_each_entry(mtt, &tracker->slave_list[slave].res_list[RES_MTT],
2917 com.list) {
2918 if (!check_mtt_range(dev, slave, start, len, mtt)) {
2919 *res = mtt;
2920 mtt->com.from_state = mtt->com.state;
2921 mtt->com.state = RES_MTT_BUSY;
2922 err = 0;
2923 break;
2924 }
2925 }
2926 spin_unlock_irq(mlx4_tlock(dev));
2927
2928 return err;
2929 }
2930
2931 static int verify_qp_parameters(struct mlx4_dev *dev,
2932 struct mlx4_vhcr *vhcr,
2933 struct mlx4_cmd_mailbox *inbox,
2934 enum qp_transition transition, u8 slave)
2935 {
2936 u32 qp_type;
2937 u32 qpn;
2938 struct mlx4_qp_context *qp_ctx;
2939 enum mlx4_qp_optpar optpar;
2940 int port;
2941 int num_gids;
2942
2943 qp_ctx = inbox->buf + 8;
2944 qp_type = (be32_to_cpu(qp_ctx->flags) >> 16) & 0xff;
2945 optpar = be32_to_cpu(*(__be32 *) inbox->buf);
2946
2947 switch (qp_type) {
2948 case MLX4_QP_ST_RC:
2949 case MLX4_QP_ST_XRC:
2950 case MLX4_QP_ST_UC:
2951 switch (transition) {
2952 case QP_TRANS_INIT2RTR:
2953 case QP_TRANS_RTR2RTS:
2954 case QP_TRANS_RTS2RTS:
2955 case QP_TRANS_SQD2SQD:
2956 case QP_TRANS_SQD2RTS:
2957 if (slave != mlx4_master_func_num(dev))
2958 if (optpar & MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH) {
2959 port = (qp_ctx->pri_path.sched_queue >> 6 & 1) + 1;
2960 if (dev->caps.port_mask[port] != MLX4_PORT_TYPE_IB)
2961 num_gids = mlx4_get_slave_num_gids(dev, slave, port);
2962 else
2963 num_gids = 1;
2964 if (qp_ctx->pri_path.mgid_index >= num_gids)
2965 return -EINVAL;
2966 }
2967 if (optpar & MLX4_QP_OPTPAR_ALT_ADDR_PATH) {
2968 port = (qp_ctx->alt_path.sched_queue >> 6 & 1) + 1;
2969 if (dev->caps.port_mask[port] != MLX4_PORT_TYPE_IB)
2970 num_gids = mlx4_get_slave_num_gids(dev, slave, port);
2971 else
2972 num_gids = 1;
2973 if (qp_ctx->alt_path.mgid_index >= num_gids)
2974 return -EINVAL;
2975 }
2976 break;
2977 default:
2978 break;
2979 }
2980 break;
2981
2982 case MLX4_QP_ST_MLX:
2983 qpn = vhcr->in_modifier & 0x7fffff;
2984 port = (qp_ctx->pri_path.sched_queue >> 6 & 1) + 1;
2985 if (transition == QP_TRANS_INIT2RTR &&
2986 slave != mlx4_master_func_num(dev) &&
2987 mlx4_is_qp_reserved(dev, qpn) &&
2988 !mlx4_vf_smi_enabled(dev, slave, port)) {
2989 /* only enabled VFs may create MLX proxy QPs */
2990 mlx4_err(dev, "%s: unprivileged slave %d attempting to create an MLX proxy special QP on port %d\n",
2991 __func__, slave, port);
2992 return -EPERM;
2993 }
2994 break;
2995
2996 default:
2997 break;
2998 }
2999
3000 return 0;
3001 }
3002
3003 int mlx4_WRITE_MTT_wrapper(struct mlx4_dev *dev, int slave,
3004 struct mlx4_vhcr *vhcr,
3005 struct mlx4_cmd_mailbox *inbox,
3006 struct mlx4_cmd_mailbox *outbox,
3007 struct mlx4_cmd_info *cmd)
3008 {
3009 struct mlx4_mtt mtt;
3010 __be64 *page_list = inbox->buf;
3011 u64 *pg_list = (u64 *)page_list;
3012 int i;
3013 struct res_mtt *rmtt = NULL;
3014 int start = be64_to_cpu(page_list[0]);
3015 int npages = vhcr->in_modifier;
3016 int err;
3017
3018 err = get_containing_mtt(dev, slave, start, npages, &rmtt);
3019 if (err)
3020 return err;
3021
3022 /* Call the SW implementation of write_mtt:
3023 * - Prepare a dummy mtt struct
3024 * - Translate inbox contents to simple addresses in host endianess */
3025 mtt.offset = 0; /* TBD this is broken but I don't handle it since
3026 we don't really use it */
3027 mtt.order = 0;
3028 mtt.page_shift = 0;
3029 for (i = 0; i < npages; ++i)
3030 pg_list[i + 2] = (be64_to_cpu(page_list[i + 2]) & ~1ULL);
3031
3032 err = __mlx4_write_mtt(dev, &mtt, be64_to_cpu(page_list[0]), npages,
3033 ((u64 *)page_list + 2));
3034
3035 if (rmtt)
3036 put_res(dev, slave, rmtt->com.res_id, RES_MTT);
3037
3038 return err;
3039 }
3040
3041 int mlx4_HW2SW_EQ_wrapper(struct mlx4_dev *dev, int slave,
3042 struct mlx4_vhcr *vhcr,
3043 struct mlx4_cmd_mailbox *inbox,
3044 struct mlx4_cmd_mailbox *outbox,
3045 struct mlx4_cmd_info *cmd)
3046 {
3047 int eqn = vhcr->in_modifier;
3048 int res_id = eqn | (slave << 8);
3049 struct res_eq *eq;
3050 int err;
3051
3052 err = eq_res_start_move_to(dev, slave, res_id, RES_EQ_RESERVED, &eq);
3053 if (err)
3054 return err;
3055
3056 err = get_res(dev, slave, eq->mtt->com.res_id, RES_MTT, NULL);
3057 if (err)
3058 goto ex_abort;
3059
3060 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3061 if (err)
3062 goto ex_put;
3063
3064 atomic_dec(&eq->mtt->ref_count);
3065 put_res(dev, slave, eq->mtt->com.res_id, RES_MTT);
3066 res_end_move(dev, slave, RES_EQ, res_id);
3067 rem_res_range(dev, slave, res_id, 1, RES_EQ, 0);
3068
3069 return 0;
3070
3071 ex_put:
3072 put_res(dev, slave, eq->mtt->com.res_id, RES_MTT);
3073 ex_abort:
3074 res_abort_move(dev, slave, RES_EQ, res_id);
3075
3076 return err;
3077 }
3078
3079 int mlx4_GEN_EQE(struct mlx4_dev *dev, int slave, struct mlx4_eqe *eqe)
3080 {
3081 struct mlx4_priv *priv = mlx4_priv(dev);
3082 struct mlx4_slave_event_eq_info *event_eq;
3083 struct mlx4_cmd_mailbox *mailbox;
3084 u32 in_modifier = 0;
3085 int err;
3086 int res_id;
3087 struct res_eq *req;
3088
3089 if (!priv->mfunc.master.slave_state)
3090 return -EINVAL;
3091
3092 event_eq = &priv->mfunc.master.slave_state[slave].event_eq[eqe->type];
3093
3094 /* Create the event only if the slave is registered */
3095 if (event_eq->eqn < 0)
3096 return 0;
3097
3098 mutex_lock(&priv->mfunc.master.gen_eqe_mutex[slave]);
3099 res_id = (slave << 8) | event_eq->eqn;
3100 err = get_res(dev, slave, res_id, RES_EQ, &req);
3101 if (err)
3102 goto unlock;
3103
3104 if (req->com.from_state != RES_EQ_HW) {
3105 err = -EINVAL;
3106 goto put;
3107 }
3108
3109 mailbox = mlx4_alloc_cmd_mailbox(dev);
3110 if (IS_ERR(mailbox)) {
3111 err = PTR_ERR(mailbox);
3112 goto put;
3113 }
3114
3115 if (eqe->type == MLX4_EVENT_TYPE_CMD) {
3116 ++event_eq->token;
3117 eqe->event.cmd.token = cpu_to_be16(event_eq->token);
3118 }
3119
3120 memcpy(mailbox->buf, (u8 *) eqe, 28);
3121
3122 in_modifier = (slave & 0xff) | ((event_eq->eqn & 0xff) << 16);
3123
3124 err = mlx4_cmd(dev, mailbox->dma, in_modifier, 0,
3125 MLX4_CMD_GEN_EQE, MLX4_CMD_TIME_CLASS_B,
3126 MLX4_CMD_NATIVE);
3127
3128 put_res(dev, slave, res_id, RES_EQ);
3129 mutex_unlock(&priv->mfunc.master.gen_eqe_mutex[slave]);
3130 mlx4_free_cmd_mailbox(dev, mailbox);
3131 return err;
3132
3133 put:
3134 put_res(dev, slave, res_id, RES_EQ);
3135
3136 unlock:
3137 mutex_unlock(&priv->mfunc.master.gen_eqe_mutex[slave]);
3138 return err;
3139 }
3140
3141 int mlx4_QUERY_EQ_wrapper(struct mlx4_dev *dev, int slave,
3142 struct mlx4_vhcr *vhcr,
3143 struct mlx4_cmd_mailbox *inbox,
3144 struct mlx4_cmd_mailbox *outbox,
3145 struct mlx4_cmd_info *cmd)
3146 {
3147 int eqn = vhcr->in_modifier;
3148 int res_id = eqn | (slave << 8);
3149 struct res_eq *eq;
3150 int err;
3151
3152 err = get_res(dev, slave, res_id, RES_EQ, &eq);
3153 if (err)
3154 return err;
3155
3156 if (eq->com.from_state != RES_EQ_HW) {
3157 err = -EINVAL;
3158 goto ex_put;
3159 }
3160
3161 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3162
3163 ex_put:
3164 put_res(dev, slave, res_id, RES_EQ);
3165 return err;
3166 }
3167
3168 int mlx4_SW2HW_CQ_wrapper(struct mlx4_dev *dev, int slave,
3169 struct mlx4_vhcr *vhcr,
3170 struct mlx4_cmd_mailbox *inbox,
3171 struct mlx4_cmd_mailbox *outbox,
3172 struct mlx4_cmd_info *cmd)
3173 {
3174 int err;
3175 int cqn = vhcr->in_modifier;
3176 struct mlx4_cq_context *cqc = inbox->buf;
3177 int mtt_base = cq_get_mtt_addr(cqc) / dev->caps.mtt_entry_sz;
3178 struct res_cq *cq;
3179 struct res_mtt *mtt;
3180
3181 err = cq_res_start_move_to(dev, slave, cqn, RES_CQ_HW, &cq);
3182 if (err)
3183 return err;
3184 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt);
3185 if (err)
3186 goto out_move;
3187 err = check_mtt_range(dev, slave, mtt_base, cq_get_mtt_size(cqc), mtt);
3188 if (err)
3189 goto out_put;
3190 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3191 if (err)
3192 goto out_put;
3193 atomic_inc(&mtt->ref_count);
3194 cq->mtt = mtt;
3195 put_res(dev, slave, mtt->com.res_id, RES_MTT);
3196 res_end_move(dev, slave, RES_CQ, cqn);
3197 return 0;
3198
3199 out_put:
3200 put_res(dev, slave, mtt->com.res_id, RES_MTT);
3201 out_move:
3202 res_abort_move(dev, slave, RES_CQ, cqn);
3203 return err;
3204 }
3205
3206 int mlx4_HW2SW_CQ_wrapper(struct mlx4_dev *dev, int slave,
3207 struct mlx4_vhcr *vhcr,
3208 struct mlx4_cmd_mailbox *inbox,
3209 struct mlx4_cmd_mailbox *outbox,
3210 struct mlx4_cmd_info *cmd)
3211 {
3212 int err;
3213 int cqn = vhcr->in_modifier;
3214 struct res_cq *cq;
3215
3216 err = cq_res_start_move_to(dev, slave, cqn, RES_CQ_ALLOCATED, &cq);
3217 if (err)
3218 return err;
3219 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3220 if (err)
3221 goto out_move;
3222 atomic_dec(&cq->mtt->ref_count);
3223 res_end_move(dev, slave, RES_CQ, cqn);
3224 return 0;
3225
3226 out_move:
3227 res_abort_move(dev, slave, RES_CQ, cqn);
3228 return err;
3229 }
3230
3231 int mlx4_QUERY_CQ_wrapper(struct mlx4_dev *dev, int slave,
3232 struct mlx4_vhcr *vhcr,
3233 struct mlx4_cmd_mailbox *inbox,
3234 struct mlx4_cmd_mailbox *outbox,
3235 struct mlx4_cmd_info *cmd)
3236 {
3237 int cqn = vhcr->in_modifier;
3238 struct res_cq *cq;
3239 int err;
3240
3241 err = get_res(dev, slave, cqn, RES_CQ, &cq);
3242 if (err)
3243 return err;
3244
3245 if (cq->com.from_state != RES_CQ_HW)
3246 goto ex_put;
3247
3248 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3249 ex_put:
3250 put_res(dev, slave, cqn, RES_CQ);
3251
3252 return err;
3253 }
3254
3255 static int handle_resize(struct mlx4_dev *dev, int slave,
3256 struct mlx4_vhcr *vhcr,
3257 struct mlx4_cmd_mailbox *inbox,
3258 struct mlx4_cmd_mailbox *outbox,
3259 struct mlx4_cmd_info *cmd,
3260 struct res_cq *cq)
3261 {
3262 int err;
3263 struct res_mtt *orig_mtt;
3264 struct res_mtt *mtt;
3265 struct mlx4_cq_context *cqc = inbox->buf;
3266 int mtt_base = cq_get_mtt_addr(cqc) / dev->caps.mtt_entry_sz;
3267
3268 err = get_res(dev, slave, cq->mtt->com.res_id, RES_MTT, &orig_mtt);
3269 if (err)
3270 return err;
3271
3272 if (orig_mtt != cq->mtt) {
3273 err = -EINVAL;
3274 goto ex_put;
3275 }
3276
3277 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt);
3278 if (err)
3279 goto ex_put;
3280
3281 err = check_mtt_range(dev, slave, mtt_base, cq_get_mtt_size(cqc), mtt);
3282 if (err)
3283 goto ex_put1;
3284 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3285 if (err)
3286 goto ex_put1;
3287 atomic_dec(&orig_mtt->ref_count);
3288 put_res(dev, slave, orig_mtt->com.res_id, RES_MTT);
3289 atomic_inc(&mtt->ref_count);
3290 cq->mtt = mtt;
3291 put_res(dev, slave, mtt->com.res_id, RES_MTT);
3292 return 0;
3293
3294 ex_put1:
3295 put_res(dev, slave, mtt->com.res_id, RES_MTT);
3296 ex_put:
3297 put_res(dev, slave, orig_mtt->com.res_id, RES_MTT);
3298
3299 return err;
3300
3301 }
3302
3303 int mlx4_MODIFY_CQ_wrapper(struct mlx4_dev *dev, int slave,
3304 struct mlx4_vhcr *vhcr,
3305 struct mlx4_cmd_mailbox *inbox,
3306 struct mlx4_cmd_mailbox *outbox,
3307 struct mlx4_cmd_info *cmd)
3308 {
3309 int cqn = vhcr->in_modifier;
3310 struct res_cq *cq;
3311 int err;
3312
3313 err = get_res(dev, slave, cqn, RES_CQ, &cq);
3314 if (err)
3315 return err;
3316
3317 if (cq->com.from_state != RES_CQ_HW)
3318 goto ex_put;
3319
3320 if (vhcr->op_modifier == 0) {
3321 err = handle_resize(dev, slave, vhcr, inbox, outbox, cmd, cq);
3322 goto ex_put;
3323 }
3324
3325 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3326 ex_put:
3327 put_res(dev, slave, cqn, RES_CQ);
3328
3329 return err;
3330 }
3331
3332 static int srq_get_mtt_size(struct mlx4_srq_context *srqc)
3333 {
3334 int log_srq_size = (be32_to_cpu(srqc->state_logsize_srqn) >> 24) & 0xf;
3335 int log_rq_stride = srqc->logstride & 7;
3336 int page_shift = (srqc->log_page_size & 0x3f) + 12;
3337
3338 if (log_srq_size + log_rq_stride + 4 < page_shift)
3339 return 1;
3340
3341 return 1 << (log_srq_size + log_rq_stride + 4 - page_shift);
3342 }
3343
3344 int mlx4_SW2HW_SRQ_wrapper(struct mlx4_dev *dev, int slave,
3345 struct mlx4_vhcr *vhcr,
3346 struct mlx4_cmd_mailbox *inbox,
3347 struct mlx4_cmd_mailbox *outbox,
3348 struct mlx4_cmd_info *cmd)
3349 {
3350 int err;
3351 int srqn = vhcr->in_modifier;
3352 struct res_mtt *mtt;
3353 struct res_srq *srq;
3354 struct mlx4_srq_context *srqc = inbox->buf;
3355 int mtt_base = srq_get_mtt_addr(srqc) / dev->caps.mtt_entry_sz;
3356
3357 if (srqn != (be32_to_cpu(srqc->state_logsize_srqn) & 0xffffff))
3358 return -EINVAL;
3359
3360 err = srq_res_start_move_to(dev, slave, srqn, RES_SRQ_HW, &srq);
3361 if (err)
3362 return err;
3363 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt);
3364 if (err)
3365 goto ex_abort;
3366 err = check_mtt_range(dev, slave, mtt_base, srq_get_mtt_size(srqc),
3367 mtt);
3368 if (err)
3369 goto ex_put_mtt;
3370
3371 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3372 if (err)
3373 goto ex_put_mtt;
3374
3375 atomic_inc(&mtt->ref_count);
3376 srq->mtt = mtt;
3377 put_res(dev, slave, mtt->com.res_id, RES_MTT);
3378 res_end_move(dev, slave, RES_SRQ, srqn);
3379 return 0;
3380
3381 ex_put_mtt:
3382 put_res(dev, slave, mtt->com.res_id, RES_MTT);
3383 ex_abort:
3384 res_abort_move(dev, slave, RES_SRQ, srqn);
3385
3386 return err;
3387 }
3388
3389 int mlx4_HW2SW_SRQ_wrapper(struct mlx4_dev *dev, int slave,
3390 struct mlx4_vhcr *vhcr,
3391 struct mlx4_cmd_mailbox *inbox,
3392 struct mlx4_cmd_mailbox *outbox,
3393 struct mlx4_cmd_info *cmd)
3394 {
3395 int err;
3396 int srqn = vhcr->in_modifier;
3397 struct res_srq *srq;
3398
3399 err = srq_res_start_move_to(dev, slave, srqn, RES_SRQ_ALLOCATED, &srq);
3400 if (err)
3401 return err;
3402 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3403 if (err)
3404 goto ex_abort;
3405 atomic_dec(&srq->mtt->ref_count);
3406 if (srq->cq)
3407 atomic_dec(&srq->cq->ref_count);
3408 res_end_move(dev, slave, RES_SRQ, srqn);
3409
3410 return 0;
3411
3412 ex_abort:
3413 res_abort_move(dev, slave, RES_SRQ, srqn);
3414
3415 return err;
3416 }
3417
3418 int mlx4_QUERY_SRQ_wrapper(struct mlx4_dev *dev, int slave,
3419 struct mlx4_vhcr *vhcr,
3420 struct mlx4_cmd_mailbox *inbox,
3421 struct mlx4_cmd_mailbox *outbox,
3422 struct mlx4_cmd_info *cmd)
3423 {
3424 int err;
3425 int srqn = vhcr->in_modifier;
3426 struct res_srq *srq;
3427
3428 err = get_res(dev, slave, srqn, RES_SRQ, &srq);
3429 if (err)
3430 return err;
3431 if (srq->com.from_state != RES_SRQ_HW) {
3432 err = -EBUSY;
3433 goto out;
3434 }
3435 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3436 out:
3437 put_res(dev, slave, srqn, RES_SRQ);
3438 return err;
3439 }
3440
3441 int mlx4_ARM_SRQ_wrapper(struct mlx4_dev *dev, int slave,
3442 struct mlx4_vhcr *vhcr,
3443 struct mlx4_cmd_mailbox *inbox,
3444 struct mlx4_cmd_mailbox *outbox,
3445 struct mlx4_cmd_info *cmd)
3446 {
3447 int err;
3448 int srqn = vhcr->in_modifier;
3449 struct res_srq *srq;
3450
3451 err = get_res(dev, slave, srqn, RES_SRQ, &srq);
3452 if (err)
3453 return err;
3454
3455 if (srq->com.from_state != RES_SRQ_HW) {
3456 err = -EBUSY;
3457 goto out;
3458 }
3459
3460 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3461 out:
3462 put_res(dev, slave, srqn, RES_SRQ);
3463 return err;
3464 }
3465
3466 int mlx4_GEN_QP_wrapper(struct mlx4_dev *dev, int slave,
3467 struct mlx4_vhcr *vhcr,
3468 struct mlx4_cmd_mailbox *inbox,
3469 struct mlx4_cmd_mailbox *outbox,
3470 struct mlx4_cmd_info *cmd)
3471 {
3472 int err;
3473 int qpn = vhcr->in_modifier & 0x7fffff;
3474 struct res_qp *qp;
3475
3476 err = get_res(dev, slave, qpn, RES_QP, &qp);
3477 if (err)
3478 return err;
3479 if (qp->com.from_state != RES_QP_HW) {
3480 err = -EBUSY;
3481 goto out;
3482 }
3483
3484 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3485 out:
3486 put_res(dev, slave, qpn, RES_QP);
3487 return err;
3488 }
3489
3490 int mlx4_INIT2INIT_QP_wrapper(struct mlx4_dev *dev, int slave,
3491 struct mlx4_vhcr *vhcr,
3492 struct mlx4_cmd_mailbox *inbox,
3493 struct mlx4_cmd_mailbox *outbox,
3494 struct mlx4_cmd_info *cmd)
3495 {
3496 struct mlx4_qp_context *context = inbox->buf + 8;
3497 adjust_proxy_tun_qkey(dev, vhcr, context);
3498 update_pkey_index(dev, slave, inbox);
3499 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3500 }
3501
3502 static int adjust_qp_sched_queue(struct mlx4_dev *dev, int slave,
3503 struct mlx4_qp_context *qpc,
3504 struct mlx4_cmd_mailbox *inbox)
3505 {
3506 enum mlx4_qp_optpar optpar = be32_to_cpu(*(__be32 *)inbox->buf);
3507 u8 pri_sched_queue;
3508 int port = mlx4_slave_convert_port(
3509 dev, slave, (qpc->pri_path.sched_queue >> 6 & 1) + 1) - 1;
3510
3511 if (port < 0)
3512 return -EINVAL;
3513
3514 pri_sched_queue = (qpc->pri_path.sched_queue & ~(1 << 6)) |
3515 ((port & 1) << 6);
3516
3517 if (optpar & MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH ||
3518 mlx4_is_eth(dev, port + 1)) {
3519 qpc->pri_path.sched_queue = pri_sched_queue;
3520 }
3521
3522 if (optpar & MLX4_QP_OPTPAR_ALT_ADDR_PATH) {
3523 port = mlx4_slave_convert_port(
3524 dev, slave, (qpc->alt_path.sched_queue >> 6 & 1)
3525 + 1) - 1;
3526 if (port < 0)
3527 return -EINVAL;
3528 qpc->alt_path.sched_queue =
3529 (qpc->alt_path.sched_queue & ~(1 << 6)) |
3530 (port & 1) << 6;
3531 }
3532 return 0;
3533 }
3534
3535 static int roce_verify_mac(struct mlx4_dev *dev, int slave,
3536 struct mlx4_qp_context *qpc,
3537 struct mlx4_cmd_mailbox *inbox)
3538 {
3539 u64 mac;
3540 int port;
3541 u32 ts = (be32_to_cpu(qpc->flags) >> 16) & 0xff;
3542 u8 sched = *(u8 *)(inbox->buf + 64);
3543 u8 smac_ix;
3544
3545 port = (sched >> 6 & 1) + 1;
3546 if (mlx4_is_eth(dev, port) && (ts != MLX4_QP_ST_MLX)) {
3547 smac_ix = qpc->pri_path.grh_mylmc & 0x7f;
3548 if (mac_find_smac_ix_in_slave(dev, slave, port, smac_ix, &mac))
3549 return -ENOENT;
3550 }
3551 return 0;
3552 }
3553
3554 int mlx4_INIT2RTR_QP_wrapper(struct mlx4_dev *dev, int slave,
3555 struct mlx4_vhcr *vhcr,
3556 struct mlx4_cmd_mailbox *inbox,
3557 struct mlx4_cmd_mailbox *outbox,
3558 struct mlx4_cmd_info *cmd)
3559 {
3560 int err;
3561 struct mlx4_qp_context *qpc = inbox->buf + 8;
3562 int qpn = vhcr->in_modifier & 0x7fffff;
3563 struct res_qp *qp;
3564 u8 orig_sched_queue;
3565 __be32 orig_param3 = qpc->param3;
3566 u8 orig_vlan_control = qpc->pri_path.vlan_control;
3567 u8 orig_fvl_rx = qpc->pri_path.fvl_rx;
3568 u8 orig_pri_path_fl = qpc->pri_path.fl;
3569 u8 orig_vlan_index = qpc->pri_path.vlan_index;
3570 u8 orig_feup = qpc->pri_path.feup;
3571
3572 err = adjust_qp_sched_queue(dev, slave, qpc, inbox);
3573 if (err)
3574 return err;
3575 err = verify_qp_parameters(dev, vhcr, inbox, QP_TRANS_INIT2RTR, slave);
3576 if (err)
3577 return err;
3578
3579 if (roce_verify_mac(dev, slave, qpc, inbox))
3580 return -EINVAL;
3581
3582 update_pkey_index(dev, slave, inbox);
3583 update_gid(dev, inbox, (u8)slave);
3584 adjust_proxy_tun_qkey(dev, vhcr, qpc);
3585 orig_sched_queue = qpc->pri_path.sched_queue;
3586 err = update_vport_qp_param(dev, inbox, slave, qpn);
3587 if (err)
3588 return err;
3589
3590 err = get_res(dev, slave, qpn, RES_QP, &qp);
3591 if (err)
3592 return err;
3593 if (qp->com.from_state != RES_QP_HW) {
3594 err = -EBUSY;
3595 goto out;
3596 }
3597
3598 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3599 out:
3600 /* if no error, save sched queue value passed in by VF. This is
3601 * essentially the QOS value provided by the VF. This will be useful
3602 * if we allow dynamic changes from VST back to VGT
3603 */
3604 if (!err) {
3605 qp->sched_queue = orig_sched_queue;
3606 qp->param3 = orig_param3;
3607 qp->vlan_control = orig_vlan_control;
3608 qp->fvl_rx = orig_fvl_rx;
3609 qp->pri_path_fl = orig_pri_path_fl;
3610 qp->vlan_index = orig_vlan_index;
3611 qp->feup = orig_feup;
3612 }
3613 put_res(dev, slave, qpn, RES_QP);
3614 return err;
3615 }
3616
3617 int mlx4_RTR2RTS_QP_wrapper(struct mlx4_dev *dev, int slave,
3618 struct mlx4_vhcr *vhcr,
3619 struct mlx4_cmd_mailbox *inbox,
3620 struct mlx4_cmd_mailbox *outbox,
3621 struct mlx4_cmd_info *cmd)
3622 {
3623 int err;
3624 struct mlx4_qp_context *context = inbox->buf + 8;
3625
3626 err = adjust_qp_sched_queue(dev, slave, context, inbox);
3627 if (err)
3628 return err;
3629 err = verify_qp_parameters(dev, vhcr, inbox, QP_TRANS_RTR2RTS, slave);
3630 if (err)
3631 return err;
3632
3633 update_pkey_index(dev, slave, inbox);
3634 update_gid(dev, inbox, (u8)slave);
3635 adjust_proxy_tun_qkey(dev, vhcr, context);
3636 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3637 }
3638
3639 int mlx4_RTS2RTS_QP_wrapper(struct mlx4_dev *dev, int slave,
3640 struct mlx4_vhcr *vhcr,
3641 struct mlx4_cmd_mailbox *inbox,
3642 struct mlx4_cmd_mailbox *outbox,
3643 struct mlx4_cmd_info *cmd)
3644 {
3645 int err;
3646 struct mlx4_qp_context *context = inbox->buf + 8;
3647
3648 err = adjust_qp_sched_queue(dev, slave, context, inbox);
3649 if (err)
3650 return err;
3651 err = verify_qp_parameters(dev, vhcr, inbox, QP_TRANS_RTS2RTS, slave);
3652 if (err)
3653 return err;
3654
3655 update_pkey_index(dev, slave, inbox);
3656 update_gid(dev, inbox, (u8)slave);
3657 adjust_proxy_tun_qkey(dev, vhcr, context);
3658 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3659 }
3660
3661
3662 int mlx4_SQERR2RTS_QP_wrapper(struct mlx4_dev *dev, int slave,
3663 struct mlx4_vhcr *vhcr,
3664 struct mlx4_cmd_mailbox *inbox,
3665 struct mlx4_cmd_mailbox *outbox,
3666 struct mlx4_cmd_info *cmd)
3667 {
3668 struct mlx4_qp_context *context = inbox->buf + 8;
3669 int err = adjust_qp_sched_queue(dev, slave, context, inbox);
3670 if (err)
3671 return err;
3672 adjust_proxy_tun_qkey(dev, vhcr, context);
3673 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3674 }
3675
3676 int mlx4_SQD2SQD_QP_wrapper(struct mlx4_dev *dev, int slave,
3677 struct mlx4_vhcr *vhcr,
3678 struct mlx4_cmd_mailbox *inbox,
3679 struct mlx4_cmd_mailbox *outbox,
3680 struct mlx4_cmd_info *cmd)
3681 {
3682 int err;
3683 struct mlx4_qp_context *context = inbox->buf + 8;
3684
3685 err = adjust_qp_sched_queue(dev, slave, context, inbox);
3686 if (err)
3687 return err;
3688 err = verify_qp_parameters(dev, vhcr, inbox, QP_TRANS_SQD2SQD, slave);
3689 if (err)
3690 return err;
3691
3692 adjust_proxy_tun_qkey(dev, vhcr, context);
3693 update_gid(dev, inbox, (u8)slave);
3694 update_pkey_index(dev, slave, inbox);
3695 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3696 }
3697
3698 int mlx4_SQD2RTS_QP_wrapper(struct mlx4_dev *dev, int slave,
3699 struct mlx4_vhcr *vhcr,
3700 struct mlx4_cmd_mailbox *inbox,
3701 struct mlx4_cmd_mailbox *outbox,
3702 struct mlx4_cmd_info *cmd)
3703 {
3704 int err;
3705 struct mlx4_qp_context *context = inbox->buf + 8;
3706
3707 err = adjust_qp_sched_queue(dev, slave, context, inbox);
3708 if (err)
3709 return err;
3710 err = verify_qp_parameters(dev, vhcr, inbox, QP_TRANS_SQD2RTS, slave);
3711 if (err)
3712 return err;
3713
3714 adjust_proxy_tun_qkey(dev, vhcr, context);
3715 update_gid(dev, inbox, (u8)slave);
3716 update_pkey_index(dev, slave, inbox);
3717 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3718 }
3719
3720 int mlx4_2RST_QP_wrapper(struct mlx4_dev *dev, int slave,
3721 struct mlx4_vhcr *vhcr,
3722 struct mlx4_cmd_mailbox *inbox,
3723 struct mlx4_cmd_mailbox *outbox,
3724 struct mlx4_cmd_info *cmd)
3725 {
3726 int err;
3727 int qpn = vhcr->in_modifier & 0x7fffff;
3728 struct res_qp *qp;
3729
3730 err = qp_res_start_move_to(dev, slave, qpn, RES_QP_MAPPED, &qp, 0);
3731 if (err)
3732 return err;
3733 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3734 if (err)
3735 goto ex_abort;
3736
3737 atomic_dec(&qp->mtt->ref_count);
3738 atomic_dec(&qp->rcq->ref_count);
3739 atomic_dec(&qp->scq->ref_count);
3740 if (qp->srq)
3741 atomic_dec(&qp->srq->ref_count);
3742 res_end_move(dev, slave, RES_QP, qpn);
3743 return 0;
3744
3745 ex_abort:
3746 res_abort_move(dev, slave, RES_QP, qpn);
3747
3748 return err;
3749 }
3750
3751 static struct res_gid *find_gid(struct mlx4_dev *dev, int slave,
3752 struct res_qp *rqp, u8 *gid)
3753 {
3754 struct res_gid *res;
3755
3756 list_for_each_entry(res, &rqp->mcg_list, list) {
3757 if (!memcmp(res->gid, gid, 16))
3758 return res;
3759 }
3760 return NULL;
3761 }
3762
3763 static int add_mcg_res(struct mlx4_dev *dev, int slave, struct res_qp *rqp,
3764 u8 *gid, enum mlx4_protocol prot,
3765 enum mlx4_steer_type steer, u64 reg_id)
3766 {
3767 struct res_gid *res;
3768 int err;
3769
3770 res = kzalloc(sizeof *res, GFP_KERNEL);
3771 if (!res)
3772 return -ENOMEM;
3773
3774 spin_lock_irq(&rqp->mcg_spl);
3775 if (find_gid(dev, slave, rqp, gid)) {
3776 kfree(res);
3777 err = -EEXIST;
3778 } else {
3779 memcpy(res->gid, gid, 16);
3780 res->prot = prot;
3781 res->steer = steer;
3782 res->reg_id = reg_id;
3783 list_add_tail(&res->list, &rqp->mcg_list);
3784 err = 0;
3785 }
3786 spin_unlock_irq(&rqp->mcg_spl);
3787
3788 return err;
3789 }
3790
3791 static int rem_mcg_res(struct mlx4_dev *dev, int slave, struct res_qp *rqp,
3792 u8 *gid, enum mlx4_protocol prot,
3793 enum mlx4_steer_type steer, u64 *reg_id)
3794 {
3795 struct res_gid *res;
3796 int err;
3797
3798 spin_lock_irq(&rqp->mcg_spl);
3799 res = find_gid(dev, slave, rqp, gid);
3800 if (!res || res->prot != prot || res->steer != steer)
3801 err = -EINVAL;
3802 else {
3803 *reg_id = res->reg_id;
3804 list_del(&res->list);
3805 kfree(res);
3806 err = 0;
3807 }
3808 spin_unlock_irq(&rqp->mcg_spl);
3809
3810 return err;
3811 }
3812
3813 static int qp_attach(struct mlx4_dev *dev, int slave, struct mlx4_qp *qp,
3814 u8 gid[16], int block_loopback, enum mlx4_protocol prot,
3815 enum mlx4_steer_type type, u64 *reg_id)
3816 {
3817 switch (dev->caps.steering_mode) {
3818 case MLX4_STEERING_MODE_DEVICE_MANAGED: {
3819 int port = mlx4_slave_convert_port(dev, slave, gid[5]);
3820 if (port < 0)
3821 return port;
3822 return mlx4_trans_to_dmfs_attach(dev, qp, gid, port,
3823 block_loopback, prot,
3824 reg_id);
3825 }
3826 case MLX4_STEERING_MODE_B0:
3827 if (prot == MLX4_PROT_ETH) {
3828 int port = mlx4_slave_convert_port(dev, slave, gid[5]);
3829 if (port < 0)
3830 return port;
3831 gid[5] = port;
3832 }
3833 return mlx4_qp_attach_common(dev, qp, gid,
3834 block_loopback, prot, type);
3835 default:
3836 return -EINVAL;
3837 }
3838 }
3839
3840 static int qp_detach(struct mlx4_dev *dev, struct mlx4_qp *qp,
3841 u8 gid[16], enum mlx4_protocol prot,
3842 enum mlx4_steer_type type, u64 reg_id)
3843 {
3844 switch (dev->caps.steering_mode) {
3845 case MLX4_STEERING_MODE_DEVICE_MANAGED:
3846 return mlx4_flow_detach(dev, reg_id);
3847 case MLX4_STEERING_MODE_B0:
3848 return mlx4_qp_detach_common(dev, qp, gid, prot, type);
3849 default:
3850 return -EINVAL;
3851 }
3852 }
3853
3854 static int mlx4_adjust_port(struct mlx4_dev *dev, int slave,
3855 u8 *gid, enum mlx4_protocol prot)
3856 {
3857 int real_port;
3858
3859 if (prot != MLX4_PROT_ETH)
3860 return 0;
3861
3862 if (dev->caps.steering_mode == MLX4_STEERING_MODE_B0 ||
3863 dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) {
3864 real_port = mlx4_slave_convert_port(dev, slave, gid[5]);
3865 if (real_port < 0)
3866 return -EINVAL;
3867 gid[5] = real_port;
3868 }
3869
3870 return 0;
3871 }
3872
3873 int mlx4_QP_ATTACH_wrapper(struct mlx4_dev *dev, int slave,
3874 struct mlx4_vhcr *vhcr,
3875 struct mlx4_cmd_mailbox *inbox,
3876 struct mlx4_cmd_mailbox *outbox,
3877 struct mlx4_cmd_info *cmd)
3878 {
3879 struct mlx4_qp qp; /* dummy for calling attach/detach */
3880 u8 *gid = inbox->buf;
3881 enum mlx4_protocol prot = (vhcr->in_modifier >> 28) & 0x7;
3882 int err;
3883 int qpn;
3884 struct res_qp *rqp;
3885 u64 reg_id = 0;
3886 int attach = vhcr->op_modifier;
3887 int block_loopback = vhcr->in_modifier >> 31;
3888 u8 steer_type_mask = 2;
3889 enum mlx4_steer_type type = (gid[7] & steer_type_mask) >> 1;
3890
3891 qpn = vhcr->in_modifier & 0xffffff;
3892 err = get_res(dev, slave, qpn, RES_QP, &rqp);
3893 if (err)
3894 return err;
3895
3896 qp.qpn = qpn;
3897 if (attach) {
3898 err = qp_attach(dev, slave, &qp, gid, block_loopback, prot,
3899 type, &reg_id);
3900 if (err) {
3901 pr_err("Fail to attach rule to qp 0x%x\n", qpn);
3902 goto ex_put;
3903 }
3904 err = add_mcg_res(dev, slave, rqp, gid, prot, type, reg_id);
3905 if (err)
3906 goto ex_detach;
3907 } else {
3908 err = mlx4_adjust_port(dev, slave, gid, prot);
3909 if (err)
3910 goto ex_put;
3911
3912 err = rem_mcg_res(dev, slave, rqp, gid, prot, type, &reg_id);
3913 if (err)
3914 goto ex_put;
3915
3916 err = qp_detach(dev, &qp, gid, prot, type, reg_id);
3917 if (err)
3918 pr_err("Fail to detach rule from qp 0x%x reg_id = 0x%llx\n",
3919 qpn, reg_id);
3920 }
3921 put_res(dev, slave, qpn, RES_QP);
3922 return err;
3923
3924 ex_detach:
3925 qp_detach(dev, &qp, gid, prot, type, reg_id);
3926 ex_put:
3927 put_res(dev, slave, qpn, RES_QP);
3928 return err;
3929 }
3930
3931 /*
3932 * MAC validation for Flow Steering rules.
3933 * VF can attach rules only with a mac address which is assigned to it.
3934 */
3935 static int validate_eth_header_mac(int slave, struct _rule_hw *eth_header,
3936 struct list_head *rlist)
3937 {
3938 struct mac_res *res, *tmp;
3939 __be64 be_mac;
3940
3941 /* make sure it isn't multicast or broadcast mac*/
3942 if (!is_multicast_ether_addr(eth_header->eth.dst_mac) &&
3943 !is_broadcast_ether_addr(eth_header->eth.dst_mac)) {
3944 list_for_each_entry_safe(res, tmp, rlist, list) {
3945 be_mac = cpu_to_be64(res->mac << 16);
3946 if (ether_addr_equal((u8 *)&be_mac, eth_header->eth.dst_mac))
3947 return 0;
3948 }
3949 pr_err("MAC %pM doesn't belong to VF %d, Steering rule rejected\n",
3950 eth_header->eth.dst_mac, slave);
3951 return -EINVAL;
3952 }
3953 return 0;
3954 }
3955
3956 /*
3957 * In case of missing eth header, append eth header with a MAC address
3958 * assigned to the VF.
3959 */
3960 static int add_eth_header(struct mlx4_dev *dev, int slave,
3961 struct mlx4_cmd_mailbox *inbox,
3962 struct list_head *rlist, int header_id)
3963 {
3964 struct mac_res *res, *tmp;
3965 u8 port;
3966 struct mlx4_net_trans_rule_hw_ctrl *ctrl;
3967 struct mlx4_net_trans_rule_hw_eth *eth_header;
3968 struct mlx4_net_trans_rule_hw_ipv4 *ip_header;
3969 struct mlx4_net_trans_rule_hw_tcp_udp *l4_header;
3970 __be64 be_mac = 0;
3971 __be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16);
3972
3973 ctrl = (struct mlx4_net_trans_rule_hw_ctrl *)inbox->buf;
3974 port = ctrl->port;
3975 eth_header = (struct mlx4_net_trans_rule_hw_eth *)(ctrl + 1);
3976
3977 /* Clear a space in the inbox for eth header */
3978 switch (header_id) {
3979 case MLX4_NET_TRANS_RULE_ID_IPV4:
3980 ip_header =
3981 (struct mlx4_net_trans_rule_hw_ipv4 *)(eth_header + 1);
3982 memmove(ip_header, eth_header,
3983 sizeof(*ip_header) + sizeof(*l4_header));
3984 break;
3985 case MLX4_NET_TRANS_RULE_ID_TCP:
3986 case MLX4_NET_TRANS_RULE_ID_UDP:
3987 l4_header = (struct mlx4_net_trans_rule_hw_tcp_udp *)
3988 (eth_header + 1);
3989 memmove(l4_header, eth_header, sizeof(*l4_header));
3990 break;
3991 default:
3992 return -EINVAL;
3993 }
3994 list_for_each_entry_safe(res, tmp, rlist, list) {
3995 if (port == res->port) {
3996 be_mac = cpu_to_be64(res->mac << 16);
3997 break;
3998 }
3999 }
4000 if (!be_mac) {
4001 pr_err("Failed adding eth header to FS rule, Can't find matching MAC for port %d\n",
4002 port);
4003 return -EINVAL;
4004 }
4005
4006 memset(eth_header, 0, sizeof(*eth_header));
4007 eth_header->size = sizeof(*eth_header) >> 2;
4008 eth_header->id = cpu_to_be16(__sw_id_hw[MLX4_NET_TRANS_RULE_ID_ETH]);
4009 memcpy(eth_header->dst_mac, &be_mac, ETH_ALEN);
4010 memcpy(eth_header->dst_mac_msk, &mac_msk, ETH_ALEN);
4011
4012 return 0;
4013
4014 }
4015
4016 #define MLX4_UPD_QP_PATH_MASK_SUPPORTED (1ULL << MLX4_UPD_QP_PATH_MASK_MAC_INDEX)
4017 int mlx4_UPDATE_QP_wrapper(struct mlx4_dev *dev, int slave,
4018 struct mlx4_vhcr *vhcr,
4019 struct mlx4_cmd_mailbox *inbox,
4020 struct mlx4_cmd_mailbox *outbox,
4021 struct mlx4_cmd_info *cmd_info)
4022 {
4023 int err;
4024 u32 qpn = vhcr->in_modifier & 0xffffff;
4025 struct res_qp *rqp;
4026 u64 mac;
4027 unsigned port;
4028 u64 pri_addr_path_mask;
4029 struct mlx4_update_qp_context *cmd;
4030 int smac_index;
4031
4032 cmd = (struct mlx4_update_qp_context *)inbox->buf;
4033
4034 pri_addr_path_mask = be64_to_cpu(cmd->primary_addr_path_mask);
4035 if (cmd->qp_mask || cmd->secondary_addr_path_mask ||
4036 (pri_addr_path_mask & ~MLX4_UPD_QP_PATH_MASK_SUPPORTED))
4037 return -EPERM;
4038
4039 /* Just change the smac for the QP */
4040 err = get_res(dev, slave, qpn, RES_QP, &rqp);
4041 if (err) {
4042 mlx4_err(dev, "Updating qpn 0x%x for slave %d rejected\n", qpn, slave);
4043 return err;
4044 }
4045
4046 port = (rqp->sched_queue >> 6 & 1) + 1;
4047
4048 if (pri_addr_path_mask & (1ULL << MLX4_UPD_QP_PATH_MASK_MAC_INDEX)) {
4049 smac_index = cmd->qp_context.pri_path.grh_mylmc;
4050 err = mac_find_smac_ix_in_slave(dev, slave, port,
4051 smac_index, &mac);
4052
4053 if (err) {
4054 mlx4_err(dev, "Failed to update qpn 0x%x, MAC is invalid. smac_ix: %d\n",
4055 qpn, smac_index);
4056 goto err_mac;
4057 }
4058 }
4059
4060 err = mlx4_cmd(dev, inbox->dma,
4061 vhcr->in_modifier, 0,
4062 MLX4_CMD_UPDATE_QP, MLX4_CMD_TIME_CLASS_A,
4063 MLX4_CMD_NATIVE);
4064 if (err) {
4065 mlx4_err(dev, "Failed to update qpn on qpn 0x%x, command failed\n", qpn);
4066 goto err_mac;
4067 }
4068
4069 err_mac:
4070 put_res(dev, slave, qpn, RES_QP);
4071 return err;
4072 }
4073
4074 int mlx4_QP_FLOW_STEERING_ATTACH_wrapper(struct mlx4_dev *dev, int slave,
4075 struct mlx4_vhcr *vhcr,
4076 struct mlx4_cmd_mailbox *inbox,
4077 struct mlx4_cmd_mailbox *outbox,
4078 struct mlx4_cmd_info *cmd)
4079 {
4080
4081 struct mlx4_priv *priv = mlx4_priv(dev);
4082 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4083 struct list_head *rlist = &tracker->slave_list[slave].res_list[RES_MAC];
4084 int err;
4085 int qpn;
4086 struct res_qp *rqp;
4087 struct mlx4_net_trans_rule_hw_ctrl *ctrl;
4088 struct _rule_hw *rule_header;
4089 int header_id;
4090
4091 if (dev->caps.steering_mode !=
4092 MLX4_STEERING_MODE_DEVICE_MANAGED)
4093 return -EOPNOTSUPP;
4094
4095 ctrl = (struct mlx4_net_trans_rule_hw_ctrl *)inbox->buf;
4096 ctrl->port = mlx4_slave_convert_port(dev, slave, ctrl->port);
4097 if (ctrl->port <= 0)
4098 return -EINVAL;
4099 qpn = be32_to_cpu(ctrl->qpn) & 0xffffff;
4100 err = get_res(dev, slave, qpn, RES_QP, &rqp);
4101 if (err) {
4102 pr_err("Steering rule with qpn 0x%x rejected\n", qpn);
4103 return err;
4104 }
4105 rule_header = (struct _rule_hw *)(ctrl + 1);
4106 header_id = map_hw_to_sw_id(be16_to_cpu(rule_header->id));
4107
4108 switch (header_id) {
4109 case MLX4_NET_TRANS_RULE_ID_ETH:
4110 if (validate_eth_header_mac(slave, rule_header, rlist)) {
4111 err = -EINVAL;
4112 goto err_put;
4113 }
4114 break;
4115 case MLX4_NET_TRANS_RULE_ID_IB:
4116 break;
4117 case MLX4_NET_TRANS_RULE_ID_IPV4:
4118 case MLX4_NET_TRANS_RULE_ID_TCP:
4119 case MLX4_NET_TRANS_RULE_ID_UDP:
4120 pr_warn("Can't attach FS rule without L2 headers, adding L2 header\n");
4121 if (add_eth_header(dev, slave, inbox, rlist, header_id)) {
4122 err = -EINVAL;
4123 goto err_put;
4124 }
4125 vhcr->in_modifier +=
4126 sizeof(struct mlx4_net_trans_rule_hw_eth) >> 2;
4127 break;
4128 default:
4129 pr_err("Corrupted mailbox\n");
4130 err = -EINVAL;
4131 goto err_put;
4132 }
4133
4134 err = mlx4_cmd_imm(dev, inbox->dma, &vhcr->out_param,
4135 vhcr->in_modifier, 0,
4136 MLX4_QP_FLOW_STEERING_ATTACH, MLX4_CMD_TIME_CLASS_A,
4137 MLX4_CMD_NATIVE);
4138 if (err)
4139 goto err_put;
4140
4141 err = add_res_range(dev, slave, vhcr->out_param, 1, RES_FS_RULE, qpn);
4142 if (err) {
4143 mlx4_err(dev, "Fail to add flow steering resources\n");
4144 /* detach rule*/
4145 mlx4_cmd(dev, vhcr->out_param, 0, 0,
4146 MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A,
4147 MLX4_CMD_NATIVE);
4148 goto err_put;
4149 }
4150 atomic_inc(&rqp->ref_count);
4151 err_put:
4152 put_res(dev, slave, qpn, RES_QP);
4153 return err;
4154 }
4155
4156 int mlx4_QP_FLOW_STEERING_DETACH_wrapper(struct mlx4_dev *dev, int slave,
4157 struct mlx4_vhcr *vhcr,
4158 struct mlx4_cmd_mailbox *inbox,
4159 struct mlx4_cmd_mailbox *outbox,
4160 struct mlx4_cmd_info *cmd)
4161 {
4162 int err;
4163 struct res_qp *rqp;
4164 struct res_fs_rule *rrule;
4165
4166 if (dev->caps.steering_mode !=
4167 MLX4_STEERING_MODE_DEVICE_MANAGED)
4168 return -EOPNOTSUPP;
4169
4170 err = get_res(dev, slave, vhcr->in_param, RES_FS_RULE, &rrule);
4171 if (err)
4172 return err;
4173 /* Release the rule form busy state before removal */
4174 put_res(dev, slave, vhcr->in_param, RES_FS_RULE);
4175 err = get_res(dev, slave, rrule->qpn, RES_QP, &rqp);
4176 if (err)
4177 return err;
4178
4179 err = rem_res_range(dev, slave, vhcr->in_param, 1, RES_FS_RULE, 0);
4180 if (err) {
4181 mlx4_err(dev, "Fail to remove flow steering resources\n");
4182 goto out;
4183 }
4184
4185 err = mlx4_cmd(dev, vhcr->in_param, 0, 0,
4186 MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A,
4187 MLX4_CMD_NATIVE);
4188 if (!err)
4189 atomic_dec(&rqp->ref_count);
4190 out:
4191 put_res(dev, slave, rrule->qpn, RES_QP);
4192 return err;
4193 }
4194
4195 enum {
4196 BUSY_MAX_RETRIES = 10
4197 };
4198
4199 int mlx4_QUERY_IF_STAT_wrapper(struct mlx4_dev *dev, int slave,
4200 struct mlx4_vhcr *vhcr,
4201 struct mlx4_cmd_mailbox *inbox,
4202 struct mlx4_cmd_mailbox *outbox,
4203 struct mlx4_cmd_info *cmd)
4204 {
4205 int err;
4206 int index = vhcr->in_modifier & 0xffff;
4207
4208 err = get_res(dev, slave, index, RES_COUNTER, NULL);
4209 if (err)
4210 return err;
4211
4212 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
4213 put_res(dev, slave, index, RES_COUNTER);
4214 return err;
4215 }
4216
4217 static void detach_qp(struct mlx4_dev *dev, int slave, struct res_qp *rqp)
4218 {
4219 struct res_gid *rgid;
4220 struct res_gid *tmp;
4221 struct mlx4_qp qp; /* dummy for calling attach/detach */
4222
4223 list_for_each_entry_safe(rgid, tmp, &rqp->mcg_list, list) {
4224 switch (dev->caps.steering_mode) {
4225 case MLX4_STEERING_MODE_DEVICE_MANAGED:
4226 mlx4_flow_detach(dev, rgid->reg_id);
4227 break;
4228 case MLX4_STEERING_MODE_B0:
4229 qp.qpn = rqp->local_qpn;
4230 (void) mlx4_qp_detach_common(dev, &qp, rgid->gid,
4231 rgid->prot, rgid->steer);
4232 break;
4233 }
4234 list_del(&rgid->list);
4235 kfree(rgid);
4236 }
4237 }
4238
4239 static int _move_all_busy(struct mlx4_dev *dev, int slave,
4240 enum mlx4_resource type, int print)
4241 {
4242 struct mlx4_priv *priv = mlx4_priv(dev);
4243 struct mlx4_resource_tracker *tracker =
4244 &priv->mfunc.master.res_tracker;
4245 struct list_head *rlist = &tracker->slave_list[slave].res_list[type];
4246 struct res_common *r;
4247 struct res_common *tmp;
4248 int busy;
4249
4250 busy = 0;
4251 spin_lock_irq(mlx4_tlock(dev));
4252 list_for_each_entry_safe(r, tmp, rlist, list) {
4253 if (r->owner == slave) {
4254 if (!r->removing) {
4255 if (r->state == RES_ANY_BUSY) {
4256 if (print)
4257 mlx4_dbg(dev,
4258 "%s id 0x%llx is busy\n",
4259 resource_str(type),
4260 r->res_id);
4261 ++busy;
4262 } else {
4263 r->from_state = r->state;
4264 r->state = RES_ANY_BUSY;
4265 r->removing = 1;
4266 }
4267 }
4268 }
4269 }
4270 spin_unlock_irq(mlx4_tlock(dev));
4271
4272 return busy;
4273 }
4274
4275 static int move_all_busy(struct mlx4_dev *dev, int slave,
4276 enum mlx4_resource type)
4277 {
4278 unsigned long begin;
4279 int busy;
4280
4281 begin = jiffies;
4282 do {
4283 busy = _move_all_busy(dev, slave, type, 0);
4284 if (time_after(jiffies, begin + 5 * HZ))
4285 break;
4286 if (busy)
4287 cond_resched();
4288 } while (busy);
4289
4290 if (busy)
4291 busy = _move_all_busy(dev, slave, type, 1);
4292
4293 return busy;
4294 }
4295 static void rem_slave_qps(struct mlx4_dev *dev, int slave)
4296 {
4297 struct mlx4_priv *priv = mlx4_priv(dev);
4298 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4299 struct list_head *qp_list =
4300 &tracker->slave_list[slave].res_list[RES_QP];
4301 struct res_qp *qp;
4302 struct res_qp *tmp;
4303 int state;
4304 u64 in_param;
4305 int qpn;
4306 int err;
4307
4308 err = move_all_busy(dev, slave, RES_QP);
4309 if (err)
4310 mlx4_warn(dev, "rem_slave_qps: Could not move all qps to busy for slave %d\n",
4311 slave);
4312
4313 spin_lock_irq(mlx4_tlock(dev));
4314 list_for_each_entry_safe(qp, tmp, qp_list, com.list) {
4315 spin_unlock_irq(mlx4_tlock(dev));
4316 if (qp->com.owner == slave) {
4317 qpn = qp->com.res_id;
4318 detach_qp(dev, slave, qp);
4319 state = qp->com.from_state;
4320 while (state != 0) {
4321 switch (state) {
4322 case RES_QP_RESERVED:
4323 spin_lock_irq(mlx4_tlock(dev));
4324 rb_erase(&qp->com.node,
4325 &tracker->res_tree[RES_QP]);
4326 list_del(&qp->com.list);
4327 spin_unlock_irq(mlx4_tlock(dev));
4328 if (!valid_reserved(dev, slave, qpn)) {
4329 __mlx4_qp_release_range(dev, qpn, 1);
4330 mlx4_release_resource(dev, slave,
4331 RES_QP, 1, 0);
4332 }
4333 kfree(qp);
4334 state = 0;
4335 break;
4336 case RES_QP_MAPPED:
4337 if (!valid_reserved(dev, slave, qpn))
4338 __mlx4_qp_free_icm(dev, qpn);
4339 state = RES_QP_RESERVED;
4340 break;
4341 case RES_QP_HW:
4342 in_param = slave;
4343 err = mlx4_cmd(dev, in_param,
4344 qp->local_qpn, 2,
4345 MLX4_CMD_2RST_QP,
4346 MLX4_CMD_TIME_CLASS_A,
4347 MLX4_CMD_NATIVE);
4348 if (err)
4349 mlx4_dbg(dev, "rem_slave_qps: failed to move slave %d qpn %d to reset\n",
4350 slave, qp->local_qpn);
4351 atomic_dec(&qp->rcq->ref_count);
4352 atomic_dec(&qp->scq->ref_count);
4353 atomic_dec(&qp->mtt->ref_count);
4354 if (qp->srq)
4355 atomic_dec(&qp->srq->ref_count);
4356 state = RES_QP_MAPPED;
4357 break;
4358 default:
4359 state = 0;
4360 }
4361 }
4362 }
4363 spin_lock_irq(mlx4_tlock(dev));
4364 }
4365 spin_unlock_irq(mlx4_tlock(dev));
4366 }
4367
4368 static void rem_slave_srqs(struct mlx4_dev *dev, int slave)
4369 {
4370 struct mlx4_priv *priv = mlx4_priv(dev);
4371 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4372 struct list_head *srq_list =
4373 &tracker->slave_list[slave].res_list[RES_SRQ];
4374 struct res_srq *srq;
4375 struct res_srq *tmp;
4376 int state;
4377 u64 in_param;
4378 LIST_HEAD(tlist);
4379 int srqn;
4380 int err;
4381
4382 err = move_all_busy(dev, slave, RES_SRQ);
4383 if (err)
4384 mlx4_warn(dev, "rem_slave_srqs: Could not move all srqs - too busy for slave %d\n",
4385 slave);
4386
4387 spin_lock_irq(mlx4_tlock(dev));
4388 list_for_each_entry_safe(srq, tmp, srq_list, com.list) {
4389 spin_unlock_irq(mlx4_tlock(dev));
4390 if (srq->com.owner == slave) {
4391 srqn = srq->com.res_id;
4392 state = srq->com.from_state;
4393 while (state != 0) {
4394 switch (state) {
4395 case RES_SRQ_ALLOCATED:
4396 __mlx4_srq_free_icm(dev, srqn);
4397 spin_lock_irq(mlx4_tlock(dev));
4398 rb_erase(&srq->com.node,
4399 &tracker->res_tree[RES_SRQ]);
4400 list_del(&srq->com.list);
4401 spin_unlock_irq(mlx4_tlock(dev));
4402 mlx4_release_resource(dev, slave,
4403 RES_SRQ, 1, 0);
4404 kfree(srq);
4405 state = 0;
4406 break;
4407
4408 case RES_SRQ_HW:
4409 in_param = slave;
4410 err = mlx4_cmd(dev, in_param, srqn, 1,
4411 MLX4_CMD_HW2SW_SRQ,
4412 MLX4_CMD_TIME_CLASS_A,
4413 MLX4_CMD_NATIVE);
4414 if (err)
4415 mlx4_dbg(dev, "rem_slave_srqs: failed to move slave %d srq %d to SW ownership\n",
4416 slave, srqn);
4417
4418 atomic_dec(&srq->mtt->ref_count);
4419 if (srq->cq)
4420 atomic_dec(&srq->cq->ref_count);
4421 state = RES_SRQ_ALLOCATED;
4422 break;
4423
4424 default:
4425 state = 0;
4426 }
4427 }
4428 }
4429 spin_lock_irq(mlx4_tlock(dev));
4430 }
4431 spin_unlock_irq(mlx4_tlock(dev));
4432 }
4433
4434 static void rem_slave_cqs(struct mlx4_dev *dev, int slave)
4435 {
4436 struct mlx4_priv *priv = mlx4_priv(dev);
4437 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4438 struct list_head *cq_list =
4439 &tracker->slave_list[slave].res_list[RES_CQ];
4440 struct res_cq *cq;
4441 struct res_cq *tmp;
4442 int state;
4443 u64 in_param;
4444 LIST_HEAD(tlist);
4445 int cqn;
4446 int err;
4447
4448 err = move_all_busy(dev, slave, RES_CQ);
4449 if (err)
4450 mlx4_warn(dev, "rem_slave_cqs: Could not move all cqs - too busy for slave %d\n",
4451 slave);
4452
4453 spin_lock_irq(mlx4_tlock(dev));
4454 list_for_each_entry_safe(cq, tmp, cq_list, com.list) {
4455 spin_unlock_irq(mlx4_tlock(dev));
4456 if (cq->com.owner == slave && !atomic_read(&cq->ref_count)) {
4457 cqn = cq->com.res_id;
4458 state = cq->com.from_state;
4459 while (state != 0) {
4460 switch (state) {
4461 case RES_CQ_ALLOCATED:
4462 __mlx4_cq_free_icm(dev, cqn);
4463 spin_lock_irq(mlx4_tlock(dev));
4464 rb_erase(&cq->com.node,
4465 &tracker->res_tree[RES_CQ]);
4466 list_del(&cq->com.list);
4467 spin_unlock_irq(mlx4_tlock(dev));
4468 mlx4_release_resource(dev, slave,
4469 RES_CQ, 1, 0);
4470 kfree(cq);
4471 state = 0;
4472 break;
4473
4474 case RES_CQ_HW:
4475 in_param = slave;
4476 err = mlx4_cmd(dev, in_param, cqn, 1,
4477 MLX4_CMD_HW2SW_CQ,
4478 MLX4_CMD_TIME_CLASS_A,
4479 MLX4_CMD_NATIVE);
4480 if (err)
4481 mlx4_dbg(dev, "rem_slave_cqs: failed to move slave %d cq %d to SW ownership\n",
4482 slave, cqn);
4483 atomic_dec(&cq->mtt->ref_count);
4484 state = RES_CQ_ALLOCATED;
4485 break;
4486
4487 default:
4488 state = 0;
4489 }
4490 }
4491 }
4492 spin_lock_irq(mlx4_tlock(dev));
4493 }
4494 spin_unlock_irq(mlx4_tlock(dev));
4495 }
4496
4497 static void rem_slave_mrs(struct mlx4_dev *dev, int slave)
4498 {
4499 struct mlx4_priv *priv = mlx4_priv(dev);
4500 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4501 struct list_head *mpt_list =
4502 &tracker->slave_list[slave].res_list[RES_MPT];
4503 struct res_mpt *mpt;
4504 struct res_mpt *tmp;
4505 int state;
4506 u64 in_param;
4507 LIST_HEAD(tlist);
4508 int mptn;
4509 int err;
4510
4511 err = move_all_busy(dev, slave, RES_MPT);
4512 if (err)
4513 mlx4_warn(dev, "rem_slave_mrs: Could not move all mpts - too busy for slave %d\n",
4514 slave);
4515
4516 spin_lock_irq(mlx4_tlock(dev));
4517 list_for_each_entry_safe(mpt, tmp, mpt_list, com.list) {
4518 spin_unlock_irq(mlx4_tlock(dev));
4519 if (mpt->com.owner == slave) {
4520 mptn = mpt->com.res_id;
4521 state = mpt->com.from_state;
4522 while (state != 0) {
4523 switch (state) {
4524 case RES_MPT_RESERVED:
4525 __mlx4_mpt_release(dev, mpt->key);
4526 spin_lock_irq(mlx4_tlock(dev));
4527 rb_erase(&mpt->com.node,
4528 &tracker->res_tree[RES_MPT]);
4529 list_del(&mpt->com.list);
4530 spin_unlock_irq(mlx4_tlock(dev));
4531 mlx4_release_resource(dev, slave,
4532 RES_MPT, 1, 0);
4533 kfree(mpt);
4534 state = 0;
4535 break;
4536
4537 case RES_MPT_MAPPED:
4538 __mlx4_mpt_free_icm(dev, mpt->key);
4539 state = RES_MPT_RESERVED;
4540 break;
4541
4542 case RES_MPT_HW:
4543 in_param = slave;
4544 err = mlx4_cmd(dev, in_param, mptn, 0,
4545 MLX4_CMD_HW2SW_MPT,
4546 MLX4_CMD_TIME_CLASS_A,
4547 MLX4_CMD_NATIVE);
4548 if (err)
4549 mlx4_dbg(dev, "rem_slave_mrs: failed to move slave %d mpt %d to SW ownership\n",
4550 slave, mptn);
4551 if (mpt->mtt)
4552 atomic_dec(&mpt->mtt->ref_count);
4553 state = RES_MPT_MAPPED;
4554 break;
4555 default:
4556 state = 0;
4557 }
4558 }
4559 }
4560 spin_lock_irq(mlx4_tlock(dev));
4561 }
4562 spin_unlock_irq(mlx4_tlock(dev));
4563 }
4564
4565 static void rem_slave_mtts(struct mlx4_dev *dev, int slave)
4566 {
4567 struct mlx4_priv *priv = mlx4_priv(dev);
4568 struct mlx4_resource_tracker *tracker =
4569 &priv->mfunc.master.res_tracker;
4570 struct list_head *mtt_list =
4571 &tracker->slave_list[slave].res_list[RES_MTT];
4572 struct res_mtt *mtt;
4573 struct res_mtt *tmp;
4574 int state;
4575 LIST_HEAD(tlist);
4576 int base;
4577 int err;
4578
4579 err = move_all_busy(dev, slave, RES_MTT);
4580 if (err)
4581 mlx4_warn(dev, "rem_slave_mtts: Could not move all mtts - too busy for slave %d\n",
4582 slave);
4583
4584 spin_lock_irq(mlx4_tlock(dev));
4585 list_for_each_entry_safe(mtt, tmp, mtt_list, com.list) {
4586 spin_unlock_irq(mlx4_tlock(dev));
4587 if (mtt->com.owner == slave) {
4588 base = mtt->com.res_id;
4589 state = mtt->com.from_state;
4590 while (state != 0) {
4591 switch (state) {
4592 case RES_MTT_ALLOCATED:
4593 __mlx4_free_mtt_range(dev, base,
4594 mtt->order);
4595 spin_lock_irq(mlx4_tlock(dev));
4596 rb_erase(&mtt->com.node,
4597 &tracker->res_tree[RES_MTT]);
4598 list_del(&mtt->com.list);
4599 spin_unlock_irq(mlx4_tlock(dev));
4600 mlx4_release_resource(dev, slave, RES_MTT,
4601 1 << mtt->order, 0);
4602 kfree(mtt);
4603 state = 0;
4604 break;
4605
4606 default:
4607 state = 0;
4608 }
4609 }
4610 }
4611 spin_lock_irq(mlx4_tlock(dev));
4612 }
4613 spin_unlock_irq(mlx4_tlock(dev));
4614 }
4615
4616 static void rem_slave_fs_rule(struct mlx4_dev *dev, int slave)
4617 {
4618 struct mlx4_priv *priv = mlx4_priv(dev);
4619 struct mlx4_resource_tracker *tracker =
4620 &priv->mfunc.master.res_tracker;
4621 struct list_head *fs_rule_list =
4622 &tracker->slave_list[slave].res_list[RES_FS_RULE];
4623 struct res_fs_rule *fs_rule;
4624 struct res_fs_rule *tmp;
4625 int state;
4626 u64 base;
4627 int err;
4628
4629 err = move_all_busy(dev, slave, RES_FS_RULE);
4630 if (err)
4631 mlx4_warn(dev, "rem_slave_fs_rule: Could not move all mtts to busy for slave %d\n",
4632 slave);
4633
4634 spin_lock_irq(mlx4_tlock(dev));
4635 list_for_each_entry_safe(fs_rule, tmp, fs_rule_list, com.list) {
4636 spin_unlock_irq(mlx4_tlock(dev));
4637 if (fs_rule->com.owner == slave) {
4638 base = fs_rule->com.res_id;
4639 state = fs_rule->com.from_state;
4640 while (state != 0) {
4641 switch (state) {
4642 case RES_FS_RULE_ALLOCATED:
4643 /* detach rule */
4644 err = mlx4_cmd(dev, base, 0, 0,
4645 MLX4_QP_FLOW_STEERING_DETACH,
4646 MLX4_CMD_TIME_CLASS_A,
4647 MLX4_CMD_NATIVE);
4648
4649 spin_lock_irq(mlx4_tlock(dev));
4650 rb_erase(&fs_rule->com.node,
4651 &tracker->res_tree[RES_FS_RULE]);
4652 list_del(&fs_rule->com.list);
4653 spin_unlock_irq(mlx4_tlock(dev));
4654 kfree(fs_rule);
4655 state = 0;
4656 break;
4657
4658 default:
4659 state = 0;
4660 }
4661 }
4662 }
4663 spin_lock_irq(mlx4_tlock(dev));
4664 }
4665 spin_unlock_irq(mlx4_tlock(dev));
4666 }
4667
4668 static void rem_slave_eqs(struct mlx4_dev *dev, int slave)
4669 {
4670 struct mlx4_priv *priv = mlx4_priv(dev);
4671 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4672 struct list_head *eq_list =
4673 &tracker->slave_list[slave].res_list[RES_EQ];
4674 struct res_eq *eq;
4675 struct res_eq *tmp;
4676 int err;
4677 int state;
4678 LIST_HEAD(tlist);
4679 int eqn;
4680
4681 err = move_all_busy(dev, slave, RES_EQ);
4682 if (err)
4683 mlx4_warn(dev, "rem_slave_eqs: Could not move all eqs - too busy for slave %d\n",
4684 slave);
4685
4686 spin_lock_irq(mlx4_tlock(dev));
4687 list_for_each_entry_safe(eq, tmp, eq_list, com.list) {
4688 spin_unlock_irq(mlx4_tlock(dev));
4689 if (eq->com.owner == slave) {
4690 eqn = eq->com.res_id;
4691 state = eq->com.from_state;
4692 while (state != 0) {
4693 switch (state) {
4694 case RES_EQ_RESERVED:
4695 spin_lock_irq(mlx4_tlock(dev));
4696 rb_erase(&eq->com.node,
4697 &tracker->res_tree[RES_EQ]);
4698 list_del(&eq->com.list);
4699 spin_unlock_irq(mlx4_tlock(dev));
4700 kfree(eq);
4701 state = 0;
4702 break;
4703
4704 case RES_EQ_HW:
4705 err = mlx4_cmd(dev, slave, eqn & 0xff,
4706 1, MLX4_CMD_HW2SW_EQ,
4707 MLX4_CMD_TIME_CLASS_A,
4708 MLX4_CMD_NATIVE);
4709 if (err)
4710 mlx4_dbg(dev, "rem_slave_eqs: failed to move slave %d eqs %d to SW ownership\n",
4711 slave, eqn);
4712 atomic_dec(&eq->mtt->ref_count);
4713 state = RES_EQ_RESERVED;
4714 break;
4715
4716 default:
4717 state = 0;
4718 }
4719 }
4720 }
4721 spin_lock_irq(mlx4_tlock(dev));
4722 }
4723 spin_unlock_irq(mlx4_tlock(dev));
4724 }
4725
4726 static void rem_slave_counters(struct mlx4_dev *dev, int slave)
4727 {
4728 struct mlx4_priv *priv = mlx4_priv(dev);
4729 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4730 struct list_head *counter_list =
4731 &tracker->slave_list[slave].res_list[RES_COUNTER];
4732 struct res_counter *counter;
4733 struct res_counter *tmp;
4734 int err;
4735 int index;
4736
4737 err = move_all_busy(dev, slave, RES_COUNTER);
4738 if (err)
4739 mlx4_warn(dev, "rem_slave_counters: Could not move all counters - too busy for slave %d\n",
4740 slave);
4741
4742 spin_lock_irq(mlx4_tlock(dev));
4743 list_for_each_entry_safe(counter, tmp, counter_list, com.list) {
4744 if (counter->com.owner == slave) {
4745 index = counter->com.res_id;
4746 rb_erase(&counter->com.node,
4747 &tracker->res_tree[RES_COUNTER]);
4748 list_del(&counter->com.list);
4749 kfree(counter);
4750 __mlx4_counter_free(dev, index);
4751 mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0);
4752 }
4753 }
4754 spin_unlock_irq(mlx4_tlock(dev));
4755 }
4756
4757 static void rem_slave_xrcdns(struct mlx4_dev *dev, int slave)
4758 {
4759 struct mlx4_priv *priv = mlx4_priv(dev);
4760 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4761 struct list_head *xrcdn_list =
4762 &tracker->slave_list[slave].res_list[RES_XRCD];
4763 struct res_xrcdn *xrcd;
4764 struct res_xrcdn *tmp;
4765 int err;
4766 int xrcdn;
4767
4768 err = move_all_busy(dev, slave, RES_XRCD);
4769 if (err)
4770 mlx4_warn(dev, "rem_slave_xrcdns: Could not move all xrcdns - too busy for slave %d\n",
4771 slave);
4772
4773 spin_lock_irq(mlx4_tlock(dev));
4774 list_for_each_entry_safe(xrcd, tmp, xrcdn_list, com.list) {
4775 if (xrcd->com.owner == slave) {
4776 xrcdn = xrcd->com.res_id;
4777 rb_erase(&xrcd->com.node, &tracker->res_tree[RES_XRCD]);
4778 list_del(&xrcd->com.list);
4779 kfree(xrcd);
4780 __mlx4_xrcd_free(dev, xrcdn);
4781 }
4782 }
4783 spin_unlock_irq(mlx4_tlock(dev));
4784 }
4785
4786 void mlx4_delete_all_resources_for_slave(struct mlx4_dev *dev, int slave)
4787 {
4788 struct mlx4_priv *priv = mlx4_priv(dev);
4789 mlx4_reset_roce_gids(dev, slave);
4790 mutex_lock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex);
4791 rem_slave_vlans(dev, slave);
4792 rem_slave_macs(dev, slave);
4793 rem_slave_fs_rule(dev, slave);
4794 rem_slave_qps(dev, slave);
4795 rem_slave_srqs(dev, slave);
4796 rem_slave_cqs(dev, slave);
4797 rem_slave_mrs(dev, slave);
4798 rem_slave_eqs(dev, slave);
4799 rem_slave_mtts(dev, slave);
4800 rem_slave_counters(dev, slave);
4801 rem_slave_xrcdns(dev, slave);
4802 mutex_unlock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex);
4803 }
4804
4805 void mlx4_vf_immed_vlan_work_handler(struct work_struct *_work)
4806 {
4807 struct mlx4_vf_immed_vlan_work *work =
4808 container_of(_work, struct mlx4_vf_immed_vlan_work, work);
4809 struct mlx4_cmd_mailbox *mailbox;
4810 struct mlx4_update_qp_context *upd_context;
4811 struct mlx4_dev *dev = &work->priv->dev;
4812 struct mlx4_resource_tracker *tracker =
4813 &work->priv->mfunc.master.res_tracker;
4814 struct list_head *qp_list =
4815 &tracker->slave_list[work->slave].res_list[RES_QP];
4816 struct res_qp *qp;
4817 struct res_qp *tmp;
4818 u64 qp_path_mask_vlan_ctrl =
4819 ((1ULL << MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_UNTAGGED) |
4820 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_1P) |
4821 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_TAGGED) |
4822 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_UNTAGGED) |
4823 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_1P) |
4824 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_TAGGED));
4825
4826 u64 qp_path_mask = ((1ULL << MLX4_UPD_QP_PATH_MASK_VLAN_INDEX) |
4827 (1ULL << MLX4_UPD_QP_PATH_MASK_FVL) |
4828 (1ULL << MLX4_UPD_QP_PATH_MASK_CV) |
4829 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_HIDE_CQE_VLAN) |
4830 (1ULL << MLX4_UPD_QP_PATH_MASK_FEUP) |
4831 (1ULL << MLX4_UPD_QP_PATH_MASK_FVL_RX) |
4832 (1ULL << MLX4_UPD_QP_PATH_MASK_SCHED_QUEUE));
4833
4834 int err;
4835 int port, errors = 0;
4836 u8 vlan_control;
4837
4838 if (mlx4_is_slave(dev)) {
4839 mlx4_warn(dev, "Trying to update-qp in slave %d\n",
4840 work->slave);
4841 goto out;
4842 }
4843
4844 mailbox = mlx4_alloc_cmd_mailbox(dev);
4845 if (IS_ERR(mailbox))
4846 goto out;
4847 if (work->flags & MLX4_VF_IMMED_VLAN_FLAG_LINK_DISABLE) /* block all */
4848 vlan_control = MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
4849 MLX4_VLAN_CTRL_ETH_TX_BLOCK_PRIO_TAGGED |
4850 MLX4_VLAN_CTRL_ETH_TX_BLOCK_UNTAGGED |
4851 MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED |
4852 MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED |
4853 MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED;
4854 else if (!work->vlan_id)
4855 vlan_control = MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
4856 MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED;
4857 else
4858 vlan_control = MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
4859 MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED |
4860 MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED;
4861
4862 upd_context = mailbox->buf;
4863 upd_context->qp_mask = cpu_to_be64(1ULL << MLX4_UPD_QP_MASK_VSD);
4864
4865 spin_lock_irq(mlx4_tlock(dev));
4866 list_for_each_entry_safe(qp, tmp, qp_list, com.list) {
4867 spin_unlock_irq(mlx4_tlock(dev));
4868 if (qp->com.owner == work->slave) {
4869 if (qp->com.from_state != RES_QP_HW ||
4870 !qp->sched_queue || /* no INIT2RTR trans yet */
4871 mlx4_is_qp_reserved(dev, qp->local_qpn) ||
4872 qp->qpc_flags & (1 << MLX4_RSS_QPC_FLAG_OFFSET)) {
4873 spin_lock_irq(mlx4_tlock(dev));
4874 continue;
4875 }
4876 port = (qp->sched_queue >> 6 & 1) + 1;
4877 if (port != work->port) {
4878 spin_lock_irq(mlx4_tlock(dev));
4879 continue;
4880 }
4881 if (MLX4_QP_ST_RC == ((qp->qpc_flags >> 16) & 0xff))
4882 upd_context->primary_addr_path_mask = cpu_to_be64(qp_path_mask);
4883 else
4884 upd_context->primary_addr_path_mask =
4885 cpu_to_be64(qp_path_mask | qp_path_mask_vlan_ctrl);
4886 if (work->vlan_id == MLX4_VGT) {
4887 upd_context->qp_context.param3 = qp->param3;
4888 upd_context->qp_context.pri_path.vlan_control = qp->vlan_control;
4889 upd_context->qp_context.pri_path.fvl_rx = qp->fvl_rx;
4890 upd_context->qp_context.pri_path.vlan_index = qp->vlan_index;
4891 upd_context->qp_context.pri_path.fl = qp->pri_path_fl;
4892 upd_context->qp_context.pri_path.feup = qp->feup;
4893 upd_context->qp_context.pri_path.sched_queue =
4894 qp->sched_queue;
4895 } else {
4896 upd_context->qp_context.param3 = qp->param3 & ~cpu_to_be32(MLX4_STRIP_VLAN);
4897 upd_context->qp_context.pri_path.vlan_control = vlan_control;
4898 upd_context->qp_context.pri_path.vlan_index = work->vlan_ix;
4899 upd_context->qp_context.pri_path.fvl_rx =
4900 qp->fvl_rx | MLX4_FVL_RX_FORCE_ETH_VLAN;
4901 upd_context->qp_context.pri_path.fl =
4902 qp->pri_path_fl | MLX4_FL_CV | MLX4_FL_ETH_HIDE_CQE_VLAN;
4903 upd_context->qp_context.pri_path.feup =
4904 qp->feup | MLX4_FEUP_FORCE_ETH_UP | MLX4_FVL_FORCE_ETH_VLAN;
4905 upd_context->qp_context.pri_path.sched_queue =
4906 qp->sched_queue & 0xC7;
4907 upd_context->qp_context.pri_path.sched_queue |=
4908 ((work->qos & 0x7) << 3);
4909 }
4910
4911 err = mlx4_cmd(dev, mailbox->dma,
4912 qp->local_qpn & 0xffffff,
4913 0, MLX4_CMD_UPDATE_QP,
4914 MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE);
4915 if (err) {
4916 mlx4_info(dev, "UPDATE_QP failed for slave %d, port %d, qpn %d (%d)\n",
4917 work->slave, port, qp->local_qpn, err);
4918 errors++;
4919 }
4920 }
4921 spin_lock_irq(mlx4_tlock(dev));
4922 }
4923 spin_unlock_irq(mlx4_tlock(dev));
4924 mlx4_free_cmd_mailbox(dev, mailbox);
4925
4926 if (errors)
4927 mlx4_err(dev, "%d UPDATE_QP failures for slave %d, port %d\n",
4928 errors, work->slave, work->port);
4929
4930 /* unregister previous vlan_id if needed and we had no errors
4931 * while updating the QPs
4932 */
4933 if (work->flags & MLX4_VF_IMMED_VLAN_FLAG_VLAN && !errors &&
4934 NO_INDX != work->orig_vlan_ix)
4935 __mlx4_unregister_vlan(&work->priv->dev, work->port,
4936 work->orig_vlan_id);
4937 out:
4938 kfree(work);
4939 return;
4940 }
Linux kernel - Deliverables
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