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IB/mlx4: Implement IB_QP_CREATE_USE_GFP_NOIO
[mirror_ubuntu-artful-kernel.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 *ResourceType(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
311 if (slave > dev->num_vfs)
312 return -EINVAL;
313
314 spin_lock(&res_alloc->alloc_lock);
315 allocated = (port > 0) ?
316 res_alloc->allocated[(port - 1) * (dev->num_vfs + 1) + slave] :
317 res_alloc->allocated[slave];
318 free = (port > 0) ? res_alloc->res_port_free[port - 1] :
319 res_alloc->res_free;
320 reserved = (port > 0) ? res_alloc->res_port_rsvd[port - 1] :
321 res_alloc->res_reserved;
322 guaranteed = res_alloc->guaranteed[slave];
323
324 if (allocated + count > res_alloc->quota[slave])
325 goto out;
326
327 if (allocated + count <= guaranteed) {
328 err = 0;
329 } else {
330 /* portion may need to be obtained from free area */
331 if (guaranteed - allocated > 0)
332 from_free = count - (guaranteed - allocated);
333 else
334 from_free = count;
335
336 if (free - from_free > reserved)
337 err = 0;
338 }
339
340 if (!err) {
341 /* grant the request */
342 if (port > 0) {
343 res_alloc->allocated[(port - 1) * (dev->num_vfs + 1) + slave] += count;
344 res_alloc->res_port_free[port - 1] -= count;
345 } else {
346 res_alloc->allocated[slave] += count;
347 res_alloc->res_free -= count;
348 }
349 }
350
351 out:
352 spin_unlock(&res_alloc->alloc_lock);
353 return err;
354 }
355
356 static inline void mlx4_release_resource(struct mlx4_dev *dev, int slave,
357 enum mlx4_resource res_type, int count,
358 int port)
359 {
360 struct mlx4_priv *priv = mlx4_priv(dev);
361 struct resource_allocator *res_alloc =
362 &priv->mfunc.master.res_tracker.res_alloc[res_type];
363
364 if (slave > dev->num_vfs)
365 return;
366
367 spin_lock(&res_alloc->alloc_lock);
368 if (port > 0) {
369 res_alloc->allocated[(port - 1) * (dev->num_vfs + 1) + slave] -= count;
370 res_alloc->res_port_free[port - 1] += count;
371 } else {
372 res_alloc->allocated[slave] -= count;
373 res_alloc->res_free += count;
374 }
375
376 spin_unlock(&res_alloc->alloc_lock);
377 return;
378 }
379
380 static inline void initialize_res_quotas(struct mlx4_dev *dev,
381 struct resource_allocator *res_alloc,
382 enum mlx4_resource res_type,
383 int vf, int num_instances)
384 {
385 res_alloc->guaranteed[vf] = num_instances / (2 * (dev->num_vfs + 1));
386 res_alloc->quota[vf] = (num_instances / 2) + res_alloc->guaranteed[vf];
387 if (vf == mlx4_master_func_num(dev)) {
388 res_alloc->res_free = num_instances;
389 if (res_type == RES_MTT) {
390 /* reserved mtts will be taken out of the PF allocation */
391 res_alloc->res_free += dev->caps.reserved_mtts;
392 res_alloc->guaranteed[vf] += dev->caps.reserved_mtts;
393 res_alloc->quota[vf] += dev->caps.reserved_mtts;
394 }
395 }
396 }
397
398 void mlx4_init_quotas(struct mlx4_dev *dev)
399 {
400 struct mlx4_priv *priv = mlx4_priv(dev);
401 int pf;
402
403 /* quotas for VFs are initialized in mlx4_slave_cap */
404 if (mlx4_is_slave(dev))
405 return;
406
407 if (!mlx4_is_mfunc(dev)) {
408 dev->quotas.qp = dev->caps.num_qps - dev->caps.reserved_qps -
409 mlx4_num_reserved_sqps(dev);
410 dev->quotas.cq = dev->caps.num_cqs - dev->caps.reserved_cqs;
411 dev->quotas.srq = dev->caps.num_srqs - dev->caps.reserved_srqs;
412 dev->quotas.mtt = dev->caps.num_mtts - dev->caps.reserved_mtts;
413 dev->quotas.mpt = dev->caps.num_mpts - dev->caps.reserved_mrws;
414 return;
415 }
416
417 pf = mlx4_master_func_num(dev);
418 dev->quotas.qp =
419 priv->mfunc.master.res_tracker.res_alloc[RES_QP].quota[pf];
420 dev->quotas.cq =
421 priv->mfunc.master.res_tracker.res_alloc[RES_CQ].quota[pf];
422 dev->quotas.srq =
423 priv->mfunc.master.res_tracker.res_alloc[RES_SRQ].quota[pf];
424 dev->quotas.mtt =
425 priv->mfunc.master.res_tracker.res_alloc[RES_MTT].quota[pf];
426 dev->quotas.mpt =
427 priv->mfunc.master.res_tracker.res_alloc[RES_MPT].quota[pf];
428 }
429 int mlx4_init_resource_tracker(struct mlx4_dev *dev)
430 {
431 struct mlx4_priv *priv = mlx4_priv(dev);
432 int i, j;
433 int t;
434
435 priv->mfunc.master.res_tracker.slave_list =
436 kzalloc(dev->num_slaves * sizeof(struct slave_list),
437 GFP_KERNEL);
438 if (!priv->mfunc.master.res_tracker.slave_list)
439 return -ENOMEM;
440
441 for (i = 0 ; i < dev->num_slaves; i++) {
442 for (t = 0; t < MLX4_NUM_OF_RESOURCE_TYPE; ++t)
443 INIT_LIST_HEAD(&priv->mfunc.master.res_tracker.
444 slave_list[i].res_list[t]);
445 mutex_init(&priv->mfunc.master.res_tracker.slave_list[i].mutex);
446 }
447
448 mlx4_dbg(dev, "Started init_resource_tracker: %ld slaves\n",
449 dev->num_slaves);
450 for (i = 0 ; i < MLX4_NUM_OF_RESOURCE_TYPE; i++)
451 priv->mfunc.master.res_tracker.res_tree[i] = RB_ROOT;
452
453 for (i = 0; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) {
454 struct resource_allocator *res_alloc =
455 &priv->mfunc.master.res_tracker.res_alloc[i];
456 res_alloc->quota = kmalloc((dev->num_vfs + 1) * sizeof(int), GFP_KERNEL);
457 res_alloc->guaranteed = kmalloc((dev->num_vfs + 1) * sizeof(int), GFP_KERNEL);
458 if (i == RES_MAC || i == RES_VLAN)
459 res_alloc->allocated = kzalloc(MLX4_MAX_PORTS *
460 (dev->num_vfs + 1) * sizeof(int),
461 GFP_KERNEL);
462 else
463 res_alloc->allocated = kzalloc((dev->num_vfs + 1) * sizeof(int), GFP_KERNEL);
464
465 if (!res_alloc->quota || !res_alloc->guaranteed ||
466 !res_alloc->allocated)
467 goto no_mem_err;
468
469 spin_lock_init(&res_alloc->alloc_lock);
470 for (t = 0; t < dev->num_vfs + 1; t++) {
471 struct mlx4_active_ports actv_ports =
472 mlx4_get_active_ports(dev, t);
473 switch (i) {
474 case RES_QP:
475 initialize_res_quotas(dev, res_alloc, RES_QP,
476 t, dev->caps.num_qps -
477 dev->caps.reserved_qps -
478 mlx4_num_reserved_sqps(dev));
479 break;
480 case RES_CQ:
481 initialize_res_quotas(dev, res_alloc, RES_CQ,
482 t, dev->caps.num_cqs -
483 dev->caps.reserved_cqs);
484 break;
485 case RES_SRQ:
486 initialize_res_quotas(dev, res_alloc, RES_SRQ,
487 t, dev->caps.num_srqs -
488 dev->caps.reserved_srqs);
489 break;
490 case RES_MPT:
491 initialize_res_quotas(dev, res_alloc, RES_MPT,
492 t, dev->caps.num_mpts -
493 dev->caps.reserved_mrws);
494 break;
495 case RES_MTT:
496 initialize_res_quotas(dev, res_alloc, RES_MTT,
497 t, dev->caps.num_mtts -
498 dev->caps.reserved_mtts);
499 break;
500 case RES_MAC:
501 if (t == mlx4_master_func_num(dev)) {
502 int max_vfs_pport = 0;
503 /* Calculate the max vfs per port for */
504 /* both ports. */
505 for (j = 0; j < dev->caps.num_ports;
506 j++) {
507 struct mlx4_slaves_pport slaves_pport =
508 mlx4_phys_to_slaves_pport(dev, j + 1);
509 unsigned current_slaves =
510 bitmap_weight(slaves_pport.slaves,
511 dev->caps.num_ports) - 1;
512 if (max_vfs_pport < current_slaves)
513 max_vfs_pport =
514 current_slaves;
515 }
516 res_alloc->quota[t] =
517 MLX4_MAX_MAC_NUM -
518 2 * max_vfs_pport;
519 res_alloc->guaranteed[t] = 2;
520 for (j = 0; j < MLX4_MAX_PORTS; j++)
521 res_alloc->res_port_free[j] =
522 MLX4_MAX_MAC_NUM;
523 } else {
524 res_alloc->quota[t] = MLX4_MAX_MAC_NUM;
525 res_alloc->guaranteed[t] = 2;
526 }
527 break;
528 case RES_VLAN:
529 if (t == mlx4_master_func_num(dev)) {
530 res_alloc->quota[t] = MLX4_MAX_VLAN_NUM;
531 res_alloc->guaranteed[t] = MLX4_MAX_VLAN_NUM / 2;
532 for (j = 0; j < MLX4_MAX_PORTS; j++)
533 res_alloc->res_port_free[j] =
534 res_alloc->quota[t];
535 } else {
536 res_alloc->quota[t] = MLX4_MAX_VLAN_NUM / 2;
537 res_alloc->guaranteed[t] = 0;
538 }
539 break;
540 case RES_COUNTER:
541 res_alloc->quota[t] = dev->caps.max_counters;
542 res_alloc->guaranteed[t] = 0;
543 if (t == mlx4_master_func_num(dev))
544 res_alloc->res_free = res_alloc->quota[t];
545 break;
546 default:
547 break;
548 }
549 if (i == RES_MAC || i == RES_VLAN) {
550 for (j = 0; j < dev->caps.num_ports; j++)
551 if (test_bit(j, actv_ports.ports))
552 res_alloc->res_port_rsvd[j] +=
553 res_alloc->guaranteed[t];
554 } else {
555 res_alloc->res_reserved += res_alloc->guaranteed[t];
556 }
557 }
558 }
559 spin_lock_init(&priv->mfunc.master.res_tracker.lock);
560 return 0;
561
562 no_mem_err:
563 for (i = 0; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) {
564 kfree(priv->mfunc.master.res_tracker.res_alloc[i].allocated);
565 priv->mfunc.master.res_tracker.res_alloc[i].allocated = NULL;
566 kfree(priv->mfunc.master.res_tracker.res_alloc[i].guaranteed);
567 priv->mfunc.master.res_tracker.res_alloc[i].guaranteed = NULL;
568 kfree(priv->mfunc.master.res_tracker.res_alloc[i].quota);
569 priv->mfunc.master.res_tracker.res_alloc[i].quota = NULL;
570 }
571 return -ENOMEM;
572 }
573
574 void mlx4_free_resource_tracker(struct mlx4_dev *dev,
575 enum mlx4_res_tracker_free_type type)
576 {
577 struct mlx4_priv *priv = mlx4_priv(dev);
578 int i;
579
580 if (priv->mfunc.master.res_tracker.slave_list) {
581 if (type != RES_TR_FREE_STRUCTS_ONLY) {
582 for (i = 0; i < dev->num_slaves; i++) {
583 if (type == RES_TR_FREE_ALL ||
584 dev->caps.function != i)
585 mlx4_delete_all_resources_for_slave(dev, i);
586 }
587 /* free master's vlans */
588 i = dev->caps.function;
589 mutex_lock(&priv->mfunc.master.res_tracker.slave_list[i].mutex);
590 rem_slave_vlans(dev, i);
591 mutex_unlock(&priv->mfunc.master.res_tracker.slave_list[i].mutex);
592 }
593
594 if (type != RES_TR_FREE_SLAVES_ONLY) {
595 for (i = 0; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) {
596 kfree(priv->mfunc.master.res_tracker.res_alloc[i].allocated);
597 priv->mfunc.master.res_tracker.res_alloc[i].allocated = NULL;
598 kfree(priv->mfunc.master.res_tracker.res_alloc[i].guaranteed);
599 priv->mfunc.master.res_tracker.res_alloc[i].guaranteed = NULL;
600 kfree(priv->mfunc.master.res_tracker.res_alloc[i].quota);
601 priv->mfunc.master.res_tracker.res_alloc[i].quota = NULL;
602 }
603 kfree(priv->mfunc.master.res_tracker.slave_list);
604 priv->mfunc.master.res_tracker.slave_list = NULL;
605 }
606 }
607 }
608
609 static void update_pkey_index(struct mlx4_dev *dev, int slave,
610 struct mlx4_cmd_mailbox *inbox)
611 {
612 u8 sched = *(u8 *)(inbox->buf + 64);
613 u8 orig_index = *(u8 *)(inbox->buf + 35);
614 u8 new_index;
615 struct mlx4_priv *priv = mlx4_priv(dev);
616 int port;
617
618 port = (sched >> 6 & 1) + 1;
619
620 new_index = priv->virt2phys_pkey[slave][port - 1][orig_index];
621 *(u8 *)(inbox->buf + 35) = new_index;
622 }
623
624 static void update_gid(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *inbox,
625 u8 slave)
626 {
627 struct mlx4_qp_context *qp_ctx = inbox->buf + 8;
628 enum mlx4_qp_optpar optpar = be32_to_cpu(*(__be32 *) inbox->buf);
629 u32 ts = (be32_to_cpu(qp_ctx->flags) >> 16) & 0xff;
630 int port;
631
632 if (MLX4_QP_ST_UD == ts) {
633 port = (qp_ctx->pri_path.sched_queue >> 6 & 1) + 1;
634 if (mlx4_is_eth(dev, port))
635 qp_ctx->pri_path.mgid_index =
636 mlx4_get_base_gid_ix(dev, slave, port) | 0x80;
637 else
638 qp_ctx->pri_path.mgid_index = slave | 0x80;
639
640 } else if (MLX4_QP_ST_RC == ts || MLX4_QP_ST_XRC == ts || MLX4_QP_ST_UC == ts) {
641 if (optpar & MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH) {
642 port = (qp_ctx->pri_path.sched_queue >> 6 & 1) + 1;
643 if (mlx4_is_eth(dev, port)) {
644 qp_ctx->pri_path.mgid_index +=
645 mlx4_get_base_gid_ix(dev, slave, port);
646 qp_ctx->pri_path.mgid_index &= 0x7f;
647 } else {
648 qp_ctx->pri_path.mgid_index = slave & 0x7F;
649 }
650 }
651 if (optpar & MLX4_QP_OPTPAR_ALT_ADDR_PATH) {
652 port = (qp_ctx->alt_path.sched_queue >> 6 & 1) + 1;
653 if (mlx4_is_eth(dev, port)) {
654 qp_ctx->alt_path.mgid_index +=
655 mlx4_get_base_gid_ix(dev, slave, port);
656 qp_ctx->alt_path.mgid_index &= 0x7f;
657 } else {
658 qp_ctx->alt_path.mgid_index = slave & 0x7F;
659 }
660 }
661 }
662 }
663
664 static int update_vport_qp_param(struct mlx4_dev *dev,
665 struct mlx4_cmd_mailbox *inbox,
666 u8 slave, u32 qpn)
667 {
668 struct mlx4_qp_context *qpc = inbox->buf + 8;
669 struct mlx4_vport_oper_state *vp_oper;
670 struct mlx4_priv *priv;
671 int port;
672
673 port = (qpc->pri_path.sched_queue & 0x40) ? 2 : 1;
674 priv = mlx4_priv(dev);
675 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
676
677 if (MLX4_VGT != vp_oper->state.default_vlan) {
678 /* the reserved QPs (special, proxy, tunnel)
679 * do not operate over vlans
680 */
681 if (mlx4_is_qp_reserved(dev, qpn))
682 return 0;
683
684 /* force strip vlan by clear vsd */
685 qpc->param3 &= ~cpu_to_be32(MLX4_STRIP_VLAN);
686
687 if (vp_oper->state.link_state == IFLA_VF_LINK_STATE_DISABLE &&
688 dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_UPDATE_QP) {
689 qpc->pri_path.vlan_control =
690 MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
691 MLX4_VLAN_CTRL_ETH_TX_BLOCK_PRIO_TAGGED |
692 MLX4_VLAN_CTRL_ETH_TX_BLOCK_UNTAGGED |
693 MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED |
694 MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED |
695 MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED;
696 } else if (0 != vp_oper->state.default_vlan) {
697 qpc->pri_path.vlan_control =
698 MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
699 MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED |
700 MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED;
701 } else { /* priority tagged */
702 qpc->pri_path.vlan_control =
703 MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
704 MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED;
705 }
706
707 qpc->pri_path.fvl_rx |= MLX4_FVL_RX_FORCE_ETH_VLAN;
708 qpc->pri_path.vlan_index = vp_oper->vlan_idx;
709 qpc->pri_path.fl |= MLX4_FL_CV | MLX4_FL_ETH_HIDE_CQE_VLAN;
710 qpc->pri_path.feup |= MLX4_FEUP_FORCE_ETH_UP | MLX4_FVL_FORCE_ETH_VLAN;
711 qpc->pri_path.sched_queue &= 0xC7;
712 qpc->pri_path.sched_queue |= (vp_oper->state.default_qos) << 3;
713 }
714 if (vp_oper->state.spoofchk) {
715 qpc->pri_path.feup |= MLX4_FSM_FORCE_ETH_SRC_MAC;
716 qpc->pri_path.grh_mylmc = (0x80 & qpc->pri_path.grh_mylmc) + vp_oper->mac_idx;
717 }
718 return 0;
719 }
720
721 static int mpt_mask(struct mlx4_dev *dev)
722 {
723 return dev->caps.num_mpts - 1;
724 }
725
726 static void *find_res(struct mlx4_dev *dev, u64 res_id,
727 enum mlx4_resource type)
728 {
729 struct mlx4_priv *priv = mlx4_priv(dev);
730
731 return res_tracker_lookup(&priv->mfunc.master.res_tracker.res_tree[type],
732 res_id);
733 }
734
735 static int get_res(struct mlx4_dev *dev, int slave, u64 res_id,
736 enum mlx4_resource type,
737 void *res)
738 {
739 struct res_common *r;
740 int err = 0;
741
742 spin_lock_irq(mlx4_tlock(dev));
743 r = find_res(dev, res_id, type);
744 if (!r) {
745 err = -ENONET;
746 goto exit;
747 }
748
749 if (r->state == RES_ANY_BUSY) {
750 err = -EBUSY;
751 goto exit;
752 }
753
754 if (r->owner != slave) {
755 err = -EPERM;
756 goto exit;
757 }
758
759 r->from_state = r->state;
760 r->state = RES_ANY_BUSY;
761
762 if (res)
763 *((struct res_common **)res) = r;
764
765 exit:
766 spin_unlock_irq(mlx4_tlock(dev));
767 return err;
768 }
769
770 int mlx4_get_slave_from_resource_id(struct mlx4_dev *dev,
771 enum mlx4_resource type,
772 u64 res_id, int *slave)
773 {
774
775 struct res_common *r;
776 int err = -ENOENT;
777 int id = res_id;
778
779 if (type == RES_QP)
780 id &= 0x7fffff;
781 spin_lock(mlx4_tlock(dev));
782
783 r = find_res(dev, id, type);
784 if (r) {
785 *slave = r->owner;
786 err = 0;
787 }
788 spin_unlock(mlx4_tlock(dev));
789
790 return err;
791 }
792
793 static void put_res(struct mlx4_dev *dev, int slave, u64 res_id,
794 enum mlx4_resource type)
795 {
796 struct res_common *r;
797
798 spin_lock_irq(mlx4_tlock(dev));
799 r = find_res(dev, res_id, type);
800 if (r)
801 r->state = r->from_state;
802 spin_unlock_irq(mlx4_tlock(dev));
803 }
804
805 static struct res_common *alloc_qp_tr(int id)
806 {
807 struct res_qp *ret;
808
809 ret = kzalloc(sizeof *ret, GFP_KERNEL);
810 if (!ret)
811 return NULL;
812
813 ret->com.res_id = id;
814 ret->com.state = RES_QP_RESERVED;
815 ret->local_qpn = id;
816 INIT_LIST_HEAD(&ret->mcg_list);
817 spin_lock_init(&ret->mcg_spl);
818 atomic_set(&ret->ref_count, 0);
819
820 return &ret->com;
821 }
822
823 static struct res_common *alloc_mtt_tr(int id, int order)
824 {
825 struct res_mtt *ret;
826
827 ret = kzalloc(sizeof *ret, GFP_KERNEL);
828 if (!ret)
829 return NULL;
830
831 ret->com.res_id = id;
832 ret->order = order;
833 ret->com.state = RES_MTT_ALLOCATED;
834 atomic_set(&ret->ref_count, 0);
835
836 return &ret->com;
837 }
838
839 static struct res_common *alloc_mpt_tr(int id, int key)
840 {
841 struct res_mpt *ret;
842
843 ret = kzalloc(sizeof *ret, GFP_KERNEL);
844 if (!ret)
845 return NULL;
846
847 ret->com.res_id = id;
848 ret->com.state = RES_MPT_RESERVED;
849 ret->key = key;
850
851 return &ret->com;
852 }
853
854 static struct res_common *alloc_eq_tr(int id)
855 {
856 struct res_eq *ret;
857
858 ret = kzalloc(sizeof *ret, GFP_KERNEL);
859 if (!ret)
860 return NULL;
861
862 ret->com.res_id = id;
863 ret->com.state = RES_EQ_RESERVED;
864
865 return &ret->com;
866 }
867
868 static struct res_common *alloc_cq_tr(int id)
869 {
870 struct res_cq *ret;
871
872 ret = kzalloc(sizeof *ret, GFP_KERNEL);
873 if (!ret)
874 return NULL;
875
876 ret->com.res_id = id;
877 ret->com.state = RES_CQ_ALLOCATED;
878 atomic_set(&ret->ref_count, 0);
879
880 return &ret->com;
881 }
882
883 static struct res_common *alloc_srq_tr(int id)
884 {
885 struct res_srq *ret;
886
887 ret = kzalloc(sizeof *ret, GFP_KERNEL);
888 if (!ret)
889 return NULL;
890
891 ret->com.res_id = id;
892 ret->com.state = RES_SRQ_ALLOCATED;
893 atomic_set(&ret->ref_count, 0);
894
895 return &ret->com;
896 }
897
898 static struct res_common *alloc_counter_tr(int id)
899 {
900 struct res_counter *ret;
901
902 ret = kzalloc(sizeof *ret, GFP_KERNEL);
903 if (!ret)
904 return NULL;
905
906 ret->com.res_id = id;
907 ret->com.state = RES_COUNTER_ALLOCATED;
908
909 return &ret->com;
910 }
911
912 static struct res_common *alloc_xrcdn_tr(int id)
913 {
914 struct res_xrcdn *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_XRCD_ALLOCATED;
922
923 return &ret->com;
924 }
925
926 static struct res_common *alloc_fs_rule_tr(u64 id, int qpn)
927 {
928 struct res_fs_rule *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_FS_RULE_ALLOCATED;
936 ret->qpn = qpn;
937 return &ret->com;
938 }
939
940 static struct res_common *alloc_tr(u64 id, enum mlx4_resource type, int slave,
941 int extra)
942 {
943 struct res_common *ret;
944
945 switch (type) {
946 case RES_QP:
947 ret = alloc_qp_tr(id);
948 break;
949 case RES_MPT:
950 ret = alloc_mpt_tr(id, extra);
951 break;
952 case RES_MTT:
953 ret = alloc_mtt_tr(id, extra);
954 break;
955 case RES_EQ:
956 ret = alloc_eq_tr(id);
957 break;
958 case RES_CQ:
959 ret = alloc_cq_tr(id);
960 break;
961 case RES_SRQ:
962 ret = alloc_srq_tr(id);
963 break;
964 case RES_MAC:
965 printk(KERN_ERR "implementation missing\n");
966 return NULL;
967 case RES_COUNTER:
968 ret = alloc_counter_tr(id);
969 break;
970 case RES_XRCD:
971 ret = alloc_xrcdn_tr(id);
972 break;
973 case RES_FS_RULE:
974 ret = alloc_fs_rule_tr(id, extra);
975 break;
976 default:
977 return NULL;
978 }
979 if (ret)
980 ret->owner = slave;
981
982 return ret;
983 }
984
985 static int add_res_range(struct mlx4_dev *dev, int slave, u64 base, int count,
986 enum mlx4_resource type, int extra)
987 {
988 int i;
989 int err;
990 struct mlx4_priv *priv = mlx4_priv(dev);
991 struct res_common **res_arr;
992 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
993 struct rb_root *root = &tracker->res_tree[type];
994
995 res_arr = kzalloc(count * sizeof *res_arr, GFP_KERNEL);
996 if (!res_arr)
997 return -ENOMEM;
998
999 for (i = 0; i < count; ++i) {
1000 res_arr[i] = alloc_tr(base + i, type, slave, extra);
1001 if (!res_arr[i]) {
1002 for (--i; i >= 0; --i)
1003 kfree(res_arr[i]);
1004
1005 kfree(res_arr);
1006 return -ENOMEM;
1007 }
1008 }
1009
1010 spin_lock_irq(mlx4_tlock(dev));
1011 for (i = 0; i < count; ++i) {
1012 if (find_res(dev, base + i, type)) {
1013 err = -EEXIST;
1014 goto undo;
1015 }
1016 err = res_tracker_insert(root, res_arr[i]);
1017 if (err)
1018 goto undo;
1019 list_add_tail(&res_arr[i]->list,
1020 &tracker->slave_list[slave].res_list[type]);
1021 }
1022 spin_unlock_irq(mlx4_tlock(dev));
1023 kfree(res_arr);
1024
1025 return 0;
1026
1027 undo:
1028 for (--i; i >= base; --i)
1029 rb_erase(&res_arr[i]->node, root);
1030
1031 spin_unlock_irq(mlx4_tlock(dev));
1032
1033 for (i = 0; i < count; ++i)
1034 kfree(res_arr[i]);
1035
1036 kfree(res_arr);
1037
1038 return err;
1039 }
1040
1041 static int remove_qp_ok(struct res_qp *res)
1042 {
1043 if (res->com.state == RES_QP_BUSY || atomic_read(&res->ref_count) ||
1044 !list_empty(&res->mcg_list)) {
1045 pr_err("resource tracker: fail to remove qp, state %d, ref_count %d\n",
1046 res->com.state, atomic_read(&res->ref_count));
1047 return -EBUSY;
1048 } else if (res->com.state != RES_QP_RESERVED) {
1049 return -EPERM;
1050 }
1051
1052 return 0;
1053 }
1054
1055 static int remove_mtt_ok(struct res_mtt *res, int order)
1056 {
1057 if (res->com.state == RES_MTT_BUSY ||
1058 atomic_read(&res->ref_count)) {
1059 printk(KERN_DEBUG "%s-%d: state %s, ref_count %d\n",
1060 __func__, __LINE__,
1061 mtt_states_str(res->com.state),
1062 atomic_read(&res->ref_count));
1063 return -EBUSY;
1064 } else if (res->com.state != RES_MTT_ALLOCATED)
1065 return -EPERM;
1066 else if (res->order != order)
1067 return -EINVAL;
1068
1069 return 0;
1070 }
1071
1072 static int remove_mpt_ok(struct res_mpt *res)
1073 {
1074 if (res->com.state == RES_MPT_BUSY)
1075 return -EBUSY;
1076 else if (res->com.state != RES_MPT_RESERVED)
1077 return -EPERM;
1078
1079 return 0;
1080 }
1081
1082 static int remove_eq_ok(struct res_eq *res)
1083 {
1084 if (res->com.state == RES_MPT_BUSY)
1085 return -EBUSY;
1086 else if (res->com.state != RES_MPT_RESERVED)
1087 return -EPERM;
1088
1089 return 0;
1090 }
1091
1092 static int remove_counter_ok(struct res_counter *res)
1093 {
1094 if (res->com.state == RES_COUNTER_BUSY)
1095 return -EBUSY;
1096 else if (res->com.state != RES_COUNTER_ALLOCATED)
1097 return -EPERM;
1098
1099 return 0;
1100 }
1101
1102 static int remove_xrcdn_ok(struct res_xrcdn *res)
1103 {
1104 if (res->com.state == RES_XRCD_BUSY)
1105 return -EBUSY;
1106 else if (res->com.state != RES_XRCD_ALLOCATED)
1107 return -EPERM;
1108
1109 return 0;
1110 }
1111
1112 static int remove_fs_rule_ok(struct res_fs_rule *res)
1113 {
1114 if (res->com.state == RES_FS_RULE_BUSY)
1115 return -EBUSY;
1116 else if (res->com.state != RES_FS_RULE_ALLOCATED)
1117 return -EPERM;
1118
1119 return 0;
1120 }
1121
1122 static int remove_cq_ok(struct res_cq *res)
1123 {
1124 if (res->com.state == RES_CQ_BUSY)
1125 return -EBUSY;
1126 else if (res->com.state != RES_CQ_ALLOCATED)
1127 return -EPERM;
1128
1129 return 0;
1130 }
1131
1132 static int remove_srq_ok(struct res_srq *res)
1133 {
1134 if (res->com.state == RES_SRQ_BUSY)
1135 return -EBUSY;
1136 else if (res->com.state != RES_SRQ_ALLOCATED)
1137 return -EPERM;
1138
1139 return 0;
1140 }
1141
1142 static int remove_ok(struct res_common *res, enum mlx4_resource type, int extra)
1143 {
1144 switch (type) {
1145 case RES_QP:
1146 return remove_qp_ok((struct res_qp *)res);
1147 case RES_CQ:
1148 return remove_cq_ok((struct res_cq *)res);
1149 case RES_SRQ:
1150 return remove_srq_ok((struct res_srq *)res);
1151 case RES_MPT:
1152 return remove_mpt_ok((struct res_mpt *)res);
1153 case RES_MTT:
1154 return remove_mtt_ok((struct res_mtt *)res, extra);
1155 case RES_MAC:
1156 return -ENOSYS;
1157 case RES_EQ:
1158 return remove_eq_ok((struct res_eq *)res);
1159 case RES_COUNTER:
1160 return remove_counter_ok((struct res_counter *)res);
1161 case RES_XRCD:
1162 return remove_xrcdn_ok((struct res_xrcdn *)res);
1163 case RES_FS_RULE:
1164 return remove_fs_rule_ok((struct res_fs_rule *)res);
1165 default:
1166 return -EINVAL;
1167 }
1168 }
1169
1170 static int rem_res_range(struct mlx4_dev *dev, int slave, u64 base, int count,
1171 enum mlx4_resource type, int extra)
1172 {
1173 u64 i;
1174 int err;
1175 struct mlx4_priv *priv = mlx4_priv(dev);
1176 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1177 struct res_common *r;
1178
1179 spin_lock_irq(mlx4_tlock(dev));
1180 for (i = base; i < base + count; ++i) {
1181 r = res_tracker_lookup(&tracker->res_tree[type], i);
1182 if (!r) {
1183 err = -ENOENT;
1184 goto out;
1185 }
1186 if (r->owner != slave) {
1187 err = -EPERM;
1188 goto out;
1189 }
1190 err = remove_ok(r, type, extra);
1191 if (err)
1192 goto out;
1193 }
1194
1195 for (i = base; i < base + count; ++i) {
1196 r = res_tracker_lookup(&tracker->res_tree[type], i);
1197 rb_erase(&r->node, &tracker->res_tree[type]);
1198 list_del(&r->list);
1199 kfree(r);
1200 }
1201 err = 0;
1202
1203 out:
1204 spin_unlock_irq(mlx4_tlock(dev));
1205
1206 return err;
1207 }
1208
1209 static int qp_res_start_move_to(struct mlx4_dev *dev, int slave, int qpn,
1210 enum res_qp_states state, struct res_qp **qp,
1211 int alloc)
1212 {
1213 struct mlx4_priv *priv = mlx4_priv(dev);
1214 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1215 struct res_qp *r;
1216 int err = 0;
1217
1218 spin_lock_irq(mlx4_tlock(dev));
1219 r = res_tracker_lookup(&tracker->res_tree[RES_QP], qpn);
1220 if (!r)
1221 err = -ENOENT;
1222 else if (r->com.owner != slave)
1223 err = -EPERM;
1224 else {
1225 switch (state) {
1226 case RES_QP_BUSY:
1227 mlx4_dbg(dev, "%s: failed RES_QP, 0x%llx\n",
1228 __func__, r->com.res_id);
1229 err = -EBUSY;
1230 break;
1231
1232 case RES_QP_RESERVED:
1233 if (r->com.state == RES_QP_MAPPED && !alloc)
1234 break;
1235
1236 mlx4_dbg(dev, "failed RES_QP, 0x%llx\n", r->com.res_id);
1237 err = -EINVAL;
1238 break;
1239
1240 case RES_QP_MAPPED:
1241 if ((r->com.state == RES_QP_RESERVED && alloc) ||
1242 r->com.state == RES_QP_HW)
1243 break;
1244 else {
1245 mlx4_dbg(dev, "failed RES_QP, 0x%llx\n",
1246 r->com.res_id);
1247 err = -EINVAL;
1248 }
1249
1250 break;
1251
1252 case RES_QP_HW:
1253 if (r->com.state != RES_QP_MAPPED)
1254 err = -EINVAL;
1255 break;
1256 default:
1257 err = -EINVAL;
1258 }
1259
1260 if (!err) {
1261 r->com.from_state = r->com.state;
1262 r->com.to_state = state;
1263 r->com.state = RES_QP_BUSY;
1264 if (qp)
1265 *qp = r;
1266 }
1267 }
1268
1269 spin_unlock_irq(mlx4_tlock(dev));
1270
1271 return err;
1272 }
1273
1274 static int mr_res_start_move_to(struct mlx4_dev *dev, int slave, int index,
1275 enum res_mpt_states state, struct res_mpt **mpt)
1276 {
1277 struct mlx4_priv *priv = mlx4_priv(dev);
1278 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1279 struct res_mpt *r;
1280 int err = 0;
1281
1282 spin_lock_irq(mlx4_tlock(dev));
1283 r = res_tracker_lookup(&tracker->res_tree[RES_MPT], index);
1284 if (!r)
1285 err = -ENOENT;
1286 else if (r->com.owner != slave)
1287 err = -EPERM;
1288 else {
1289 switch (state) {
1290 case RES_MPT_BUSY:
1291 err = -EINVAL;
1292 break;
1293
1294 case RES_MPT_RESERVED:
1295 if (r->com.state != RES_MPT_MAPPED)
1296 err = -EINVAL;
1297 break;
1298
1299 case RES_MPT_MAPPED:
1300 if (r->com.state != RES_MPT_RESERVED &&
1301 r->com.state != RES_MPT_HW)
1302 err = -EINVAL;
1303 break;
1304
1305 case RES_MPT_HW:
1306 if (r->com.state != RES_MPT_MAPPED)
1307 err = -EINVAL;
1308 break;
1309 default:
1310 err = -EINVAL;
1311 }
1312
1313 if (!err) {
1314 r->com.from_state = r->com.state;
1315 r->com.to_state = state;
1316 r->com.state = RES_MPT_BUSY;
1317 if (mpt)
1318 *mpt = r;
1319 }
1320 }
1321
1322 spin_unlock_irq(mlx4_tlock(dev));
1323
1324 return err;
1325 }
1326
1327 static int eq_res_start_move_to(struct mlx4_dev *dev, int slave, int index,
1328 enum res_eq_states state, struct res_eq **eq)
1329 {
1330 struct mlx4_priv *priv = mlx4_priv(dev);
1331 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1332 struct res_eq *r;
1333 int err = 0;
1334
1335 spin_lock_irq(mlx4_tlock(dev));
1336 r = res_tracker_lookup(&tracker->res_tree[RES_EQ], index);
1337 if (!r)
1338 err = -ENOENT;
1339 else if (r->com.owner != slave)
1340 err = -EPERM;
1341 else {
1342 switch (state) {
1343 case RES_EQ_BUSY:
1344 err = -EINVAL;
1345 break;
1346
1347 case RES_EQ_RESERVED:
1348 if (r->com.state != RES_EQ_HW)
1349 err = -EINVAL;
1350 break;
1351
1352 case RES_EQ_HW:
1353 if (r->com.state != RES_EQ_RESERVED)
1354 err = -EINVAL;
1355 break;
1356
1357 default:
1358 err = -EINVAL;
1359 }
1360
1361 if (!err) {
1362 r->com.from_state = r->com.state;
1363 r->com.to_state = state;
1364 r->com.state = RES_EQ_BUSY;
1365 if (eq)
1366 *eq = r;
1367 }
1368 }
1369
1370 spin_unlock_irq(mlx4_tlock(dev));
1371
1372 return err;
1373 }
1374
1375 static int cq_res_start_move_to(struct mlx4_dev *dev, int slave, int cqn,
1376 enum res_cq_states state, struct res_cq **cq)
1377 {
1378 struct mlx4_priv *priv = mlx4_priv(dev);
1379 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1380 struct res_cq *r;
1381 int err;
1382
1383 spin_lock_irq(mlx4_tlock(dev));
1384 r = res_tracker_lookup(&tracker->res_tree[RES_CQ], cqn);
1385 if (!r) {
1386 err = -ENOENT;
1387 } else if (r->com.owner != slave) {
1388 err = -EPERM;
1389 } else if (state == RES_CQ_ALLOCATED) {
1390 if (r->com.state != RES_CQ_HW)
1391 err = -EINVAL;
1392 else if (atomic_read(&r->ref_count))
1393 err = -EBUSY;
1394 else
1395 err = 0;
1396 } else if (state != RES_CQ_HW || r->com.state != RES_CQ_ALLOCATED) {
1397 err = -EINVAL;
1398 } else {
1399 err = 0;
1400 }
1401
1402 if (!err) {
1403 r->com.from_state = r->com.state;
1404 r->com.to_state = state;
1405 r->com.state = RES_CQ_BUSY;
1406 if (cq)
1407 *cq = r;
1408 }
1409
1410 spin_unlock_irq(mlx4_tlock(dev));
1411
1412 return err;
1413 }
1414
1415 static int srq_res_start_move_to(struct mlx4_dev *dev, int slave, int index,
1416 enum res_srq_states state, struct res_srq **srq)
1417 {
1418 struct mlx4_priv *priv = mlx4_priv(dev);
1419 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1420 struct res_srq *r;
1421 int err = 0;
1422
1423 spin_lock_irq(mlx4_tlock(dev));
1424 r = res_tracker_lookup(&tracker->res_tree[RES_SRQ], index);
1425 if (!r) {
1426 err = -ENOENT;
1427 } else if (r->com.owner != slave) {
1428 err = -EPERM;
1429 } else if (state == RES_SRQ_ALLOCATED) {
1430 if (r->com.state != RES_SRQ_HW)
1431 err = -EINVAL;
1432 else if (atomic_read(&r->ref_count))
1433 err = -EBUSY;
1434 } else if (state != RES_SRQ_HW || r->com.state != RES_SRQ_ALLOCATED) {
1435 err = -EINVAL;
1436 }
1437
1438 if (!err) {
1439 r->com.from_state = r->com.state;
1440 r->com.to_state = state;
1441 r->com.state = RES_SRQ_BUSY;
1442 if (srq)
1443 *srq = r;
1444 }
1445
1446 spin_unlock_irq(mlx4_tlock(dev));
1447
1448 return err;
1449 }
1450
1451 static void res_abort_move(struct mlx4_dev *dev, int slave,
1452 enum mlx4_resource type, int id)
1453 {
1454 struct mlx4_priv *priv = mlx4_priv(dev);
1455 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1456 struct res_common *r;
1457
1458 spin_lock_irq(mlx4_tlock(dev));
1459 r = res_tracker_lookup(&tracker->res_tree[type], id);
1460 if (r && (r->owner == slave))
1461 r->state = r->from_state;
1462 spin_unlock_irq(mlx4_tlock(dev));
1463 }
1464
1465 static void res_end_move(struct mlx4_dev *dev, int slave,
1466 enum mlx4_resource type, int id)
1467 {
1468 struct mlx4_priv *priv = mlx4_priv(dev);
1469 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1470 struct res_common *r;
1471
1472 spin_lock_irq(mlx4_tlock(dev));
1473 r = res_tracker_lookup(&tracker->res_tree[type], id);
1474 if (r && (r->owner == slave))
1475 r->state = r->to_state;
1476 spin_unlock_irq(mlx4_tlock(dev));
1477 }
1478
1479 static int valid_reserved(struct mlx4_dev *dev, int slave, int qpn)
1480 {
1481 return mlx4_is_qp_reserved(dev, qpn) &&
1482 (mlx4_is_master(dev) || mlx4_is_guest_proxy(dev, slave, qpn));
1483 }
1484
1485 static int fw_reserved(struct mlx4_dev *dev, int qpn)
1486 {
1487 return qpn < dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW];
1488 }
1489
1490 static int qp_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1491 u64 in_param, u64 *out_param)
1492 {
1493 int err;
1494 int count;
1495 int align;
1496 int base;
1497 int qpn;
1498
1499 switch (op) {
1500 case RES_OP_RESERVE:
1501 count = get_param_l(&in_param);
1502 align = get_param_h(&in_param);
1503 err = mlx4_grant_resource(dev, slave, RES_QP, count, 0);
1504 if (err)
1505 return err;
1506
1507 err = __mlx4_qp_reserve_range(dev, count, align, &base);
1508 if (err) {
1509 mlx4_release_resource(dev, slave, RES_QP, count, 0);
1510 return err;
1511 }
1512
1513 err = add_res_range(dev, slave, base, count, RES_QP, 0);
1514 if (err) {
1515 mlx4_release_resource(dev, slave, RES_QP, count, 0);
1516 __mlx4_qp_release_range(dev, base, count);
1517 return err;
1518 }
1519 set_param_l(out_param, base);
1520 break;
1521 case RES_OP_MAP_ICM:
1522 qpn = get_param_l(&in_param) & 0x7fffff;
1523 if (valid_reserved(dev, slave, qpn)) {
1524 err = add_res_range(dev, slave, qpn, 1, RES_QP, 0);
1525 if (err)
1526 return err;
1527 }
1528
1529 err = qp_res_start_move_to(dev, slave, qpn, RES_QP_MAPPED,
1530 NULL, 1);
1531 if (err)
1532 return err;
1533
1534 if (!fw_reserved(dev, qpn)) {
1535 err = __mlx4_qp_alloc_icm(dev, qpn, GFP_KERNEL);
1536 if (err) {
1537 res_abort_move(dev, slave, RES_QP, qpn);
1538 return err;
1539 }
1540 }
1541
1542 res_end_move(dev, slave, RES_QP, qpn);
1543 break;
1544
1545 default:
1546 err = -EINVAL;
1547 break;
1548 }
1549 return err;
1550 }
1551
1552 static int mtt_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1553 u64 in_param, u64 *out_param)
1554 {
1555 int err = -EINVAL;
1556 int base;
1557 int order;
1558
1559 if (op != RES_OP_RESERVE_AND_MAP)
1560 return err;
1561
1562 order = get_param_l(&in_param);
1563
1564 err = mlx4_grant_resource(dev, slave, RES_MTT, 1 << order, 0);
1565 if (err)
1566 return err;
1567
1568 base = __mlx4_alloc_mtt_range(dev, order);
1569 if (base == -1) {
1570 mlx4_release_resource(dev, slave, RES_MTT, 1 << order, 0);
1571 return -ENOMEM;
1572 }
1573
1574 err = add_res_range(dev, slave, base, 1, RES_MTT, order);
1575 if (err) {
1576 mlx4_release_resource(dev, slave, RES_MTT, 1 << order, 0);
1577 __mlx4_free_mtt_range(dev, base, order);
1578 } else {
1579 set_param_l(out_param, base);
1580 }
1581
1582 return err;
1583 }
1584
1585 static int mpt_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1586 u64 in_param, u64 *out_param)
1587 {
1588 int err = -EINVAL;
1589 int index;
1590 int id;
1591 struct res_mpt *mpt;
1592
1593 switch (op) {
1594 case RES_OP_RESERVE:
1595 err = mlx4_grant_resource(dev, slave, RES_MPT, 1, 0);
1596 if (err)
1597 break;
1598
1599 index = __mlx4_mpt_reserve(dev);
1600 if (index == -1) {
1601 mlx4_release_resource(dev, slave, RES_MPT, 1, 0);
1602 break;
1603 }
1604 id = index & mpt_mask(dev);
1605
1606 err = add_res_range(dev, slave, id, 1, RES_MPT, index);
1607 if (err) {
1608 mlx4_release_resource(dev, slave, RES_MPT, 1, 0);
1609 __mlx4_mpt_release(dev, index);
1610 break;
1611 }
1612 set_param_l(out_param, index);
1613 break;
1614 case RES_OP_MAP_ICM:
1615 index = get_param_l(&in_param);
1616 id = index & mpt_mask(dev);
1617 err = mr_res_start_move_to(dev, slave, id,
1618 RES_MPT_MAPPED, &mpt);
1619 if (err)
1620 return err;
1621
1622 err = __mlx4_mpt_alloc_icm(dev, mpt->key, GFP_KERNEL);
1623 if (err) {
1624 res_abort_move(dev, slave, RES_MPT, id);
1625 return err;
1626 }
1627
1628 res_end_move(dev, slave, RES_MPT, id);
1629 break;
1630 }
1631 return err;
1632 }
1633
1634 static int cq_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1635 u64 in_param, u64 *out_param)
1636 {
1637 int cqn;
1638 int err;
1639
1640 switch (op) {
1641 case RES_OP_RESERVE_AND_MAP:
1642 err = mlx4_grant_resource(dev, slave, RES_CQ, 1, 0);
1643 if (err)
1644 break;
1645
1646 err = __mlx4_cq_alloc_icm(dev, &cqn);
1647 if (err) {
1648 mlx4_release_resource(dev, slave, RES_CQ, 1, 0);
1649 break;
1650 }
1651
1652 err = add_res_range(dev, slave, cqn, 1, RES_CQ, 0);
1653 if (err) {
1654 mlx4_release_resource(dev, slave, RES_CQ, 1, 0);
1655 __mlx4_cq_free_icm(dev, cqn);
1656 break;
1657 }
1658
1659 set_param_l(out_param, cqn);
1660 break;
1661
1662 default:
1663 err = -EINVAL;
1664 }
1665
1666 return err;
1667 }
1668
1669 static int srq_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1670 u64 in_param, u64 *out_param)
1671 {
1672 int srqn;
1673 int err;
1674
1675 switch (op) {
1676 case RES_OP_RESERVE_AND_MAP:
1677 err = mlx4_grant_resource(dev, slave, RES_SRQ, 1, 0);
1678 if (err)
1679 break;
1680
1681 err = __mlx4_srq_alloc_icm(dev, &srqn);
1682 if (err) {
1683 mlx4_release_resource(dev, slave, RES_SRQ, 1, 0);
1684 break;
1685 }
1686
1687 err = add_res_range(dev, slave, srqn, 1, RES_SRQ, 0);
1688 if (err) {
1689 mlx4_release_resource(dev, slave, RES_SRQ, 1, 0);
1690 __mlx4_srq_free_icm(dev, srqn);
1691 break;
1692 }
1693
1694 set_param_l(out_param, srqn);
1695 break;
1696
1697 default:
1698 err = -EINVAL;
1699 }
1700
1701 return err;
1702 }
1703
1704 static int mac_find_smac_ix_in_slave(struct mlx4_dev *dev, int slave, int port,
1705 u8 smac_index, u64 *mac)
1706 {
1707 struct mlx4_priv *priv = mlx4_priv(dev);
1708 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1709 struct list_head *mac_list =
1710 &tracker->slave_list[slave].res_list[RES_MAC];
1711 struct mac_res *res, *tmp;
1712
1713 list_for_each_entry_safe(res, tmp, mac_list, list) {
1714 if (res->smac_index == smac_index && res->port == (u8) port) {
1715 *mac = res->mac;
1716 return 0;
1717 }
1718 }
1719 return -ENOENT;
1720 }
1721
1722 static int mac_add_to_slave(struct mlx4_dev *dev, int slave, u64 mac, int port, u8 smac_index)
1723 {
1724 struct mlx4_priv *priv = mlx4_priv(dev);
1725 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1726 struct list_head *mac_list =
1727 &tracker->slave_list[slave].res_list[RES_MAC];
1728 struct mac_res *res, *tmp;
1729
1730 list_for_each_entry_safe(res, tmp, mac_list, list) {
1731 if (res->mac == mac && res->port == (u8) port) {
1732 /* mac found. update ref count */
1733 ++res->ref_count;
1734 return 0;
1735 }
1736 }
1737
1738 if (mlx4_grant_resource(dev, slave, RES_MAC, 1, port))
1739 return -EINVAL;
1740 res = kzalloc(sizeof *res, GFP_KERNEL);
1741 if (!res) {
1742 mlx4_release_resource(dev, slave, RES_MAC, 1, port);
1743 return -ENOMEM;
1744 }
1745 res->mac = mac;
1746 res->port = (u8) port;
1747 res->smac_index = smac_index;
1748 res->ref_count = 1;
1749 list_add_tail(&res->list,
1750 &tracker->slave_list[slave].res_list[RES_MAC]);
1751 return 0;
1752 }
1753
1754 static void mac_del_from_slave(struct mlx4_dev *dev, int slave, u64 mac,
1755 int port)
1756 {
1757 struct mlx4_priv *priv = mlx4_priv(dev);
1758 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1759 struct list_head *mac_list =
1760 &tracker->slave_list[slave].res_list[RES_MAC];
1761 struct mac_res *res, *tmp;
1762
1763 list_for_each_entry_safe(res, tmp, mac_list, list) {
1764 if (res->mac == mac && res->port == (u8) port) {
1765 if (!--res->ref_count) {
1766 list_del(&res->list);
1767 mlx4_release_resource(dev, slave, RES_MAC, 1, port);
1768 kfree(res);
1769 }
1770 break;
1771 }
1772 }
1773 }
1774
1775 static void rem_slave_macs(struct mlx4_dev *dev, int slave)
1776 {
1777 struct mlx4_priv *priv = mlx4_priv(dev);
1778 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1779 struct list_head *mac_list =
1780 &tracker->slave_list[slave].res_list[RES_MAC];
1781 struct mac_res *res, *tmp;
1782 int i;
1783
1784 list_for_each_entry_safe(res, tmp, mac_list, list) {
1785 list_del(&res->list);
1786 /* dereference the mac the num times the slave referenced it */
1787 for (i = 0; i < res->ref_count; i++)
1788 __mlx4_unregister_mac(dev, res->port, res->mac);
1789 mlx4_release_resource(dev, slave, RES_MAC, 1, res->port);
1790 kfree(res);
1791 }
1792 }
1793
1794 static int mac_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1795 u64 in_param, u64 *out_param, int in_port)
1796 {
1797 int err = -EINVAL;
1798 int port;
1799 u64 mac;
1800 u8 smac_index;
1801
1802 if (op != RES_OP_RESERVE_AND_MAP)
1803 return err;
1804
1805 port = !in_port ? get_param_l(out_param) : in_port;
1806 port = mlx4_slave_convert_port(
1807 dev, slave, port);
1808
1809 if (port < 0)
1810 return -EINVAL;
1811 mac = in_param;
1812
1813 err = __mlx4_register_mac(dev, port, mac);
1814 if (err >= 0) {
1815 smac_index = err;
1816 set_param_l(out_param, err);
1817 err = 0;
1818 }
1819
1820 if (!err) {
1821 err = mac_add_to_slave(dev, slave, mac, port, smac_index);
1822 if (err)
1823 __mlx4_unregister_mac(dev, port, mac);
1824 }
1825 return err;
1826 }
1827
1828 static int vlan_add_to_slave(struct mlx4_dev *dev, int slave, u16 vlan,
1829 int port, int vlan_index)
1830 {
1831 struct mlx4_priv *priv = mlx4_priv(dev);
1832 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1833 struct list_head *vlan_list =
1834 &tracker->slave_list[slave].res_list[RES_VLAN];
1835 struct vlan_res *res, *tmp;
1836
1837 list_for_each_entry_safe(res, tmp, vlan_list, list) {
1838 if (res->vlan == vlan && res->port == (u8) port) {
1839 /* vlan found. update ref count */
1840 ++res->ref_count;
1841 return 0;
1842 }
1843 }
1844
1845 if (mlx4_grant_resource(dev, slave, RES_VLAN, 1, port))
1846 return -EINVAL;
1847 res = kzalloc(sizeof(*res), GFP_KERNEL);
1848 if (!res) {
1849 mlx4_release_resource(dev, slave, RES_VLAN, 1, port);
1850 return -ENOMEM;
1851 }
1852 res->vlan = vlan;
1853 res->port = (u8) port;
1854 res->vlan_index = vlan_index;
1855 res->ref_count = 1;
1856 list_add_tail(&res->list,
1857 &tracker->slave_list[slave].res_list[RES_VLAN]);
1858 return 0;
1859 }
1860
1861
1862 static void vlan_del_from_slave(struct mlx4_dev *dev, int slave, u16 vlan,
1863 int port)
1864 {
1865 struct mlx4_priv *priv = mlx4_priv(dev);
1866 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1867 struct list_head *vlan_list =
1868 &tracker->slave_list[slave].res_list[RES_VLAN];
1869 struct vlan_res *res, *tmp;
1870
1871 list_for_each_entry_safe(res, tmp, vlan_list, list) {
1872 if (res->vlan == vlan && res->port == (u8) port) {
1873 if (!--res->ref_count) {
1874 list_del(&res->list);
1875 mlx4_release_resource(dev, slave, RES_VLAN,
1876 1, port);
1877 kfree(res);
1878 }
1879 break;
1880 }
1881 }
1882 }
1883
1884 static void rem_slave_vlans(struct mlx4_dev *dev, int slave)
1885 {
1886 struct mlx4_priv *priv = mlx4_priv(dev);
1887 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1888 struct list_head *vlan_list =
1889 &tracker->slave_list[slave].res_list[RES_VLAN];
1890 struct vlan_res *res, *tmp;
1891 int i;
1892
1893 list_for_each_entry_safe(res, tmp, vlan_list, list) {
1894 list_del(&res->list);
1895 /* dereference the vlan the num times the slave referenced it */
1896 for (i = 0; i < res->ref_count; i++)
1897 __mlx4_unregister_vlan(dev, res->port, res->vlan);
1898 mlx4_release_resource(dev, slave, RES_VLAN, 1, res->port);
1899 kfree(res);
1900 }
1901 }
1902
1903 static int vlan_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1904 u64 in_param, u64 *out_param, int in_port)
1905 {
1906 struct mlx4_priv *priv = mlx4_priv(dev);
1907 struct mlx4_slave_state *slave_state = priv->mfunc.master.slave_state;
1908 int err;
1909 u16 vlan;
1910 int vlan_index;
1911 int port;
1912
1913 port = !in_port ? get_param_l(out_param) : in_port;
1914
1915 if (!port || op != RES_OP_RESERVE_AND_MAP)
1916 return -EINVAL;
1917
1918 port = mlx4_slave_convert_port(
1919 dev, slave, port);
1920
1921 if (port < 0)
1922 return -EINVAL;
1923 /* upstream kernels had NOP for reg/unreg vlan. Continue this. */
1924 if (!in_port && port > 0 && port <= dev->caps.num_ports) {
1925 slave_state[slave].old_vlan_api = true;
1926 return 0;
1927 }
1928
1929 vlan = (u16) in_param;
1930
1931 err = __mlx4_register_vlan(dev, port, vlan, &vlan_index);
1932 if (!err) {
1933 set_param_l(out_param, (u32) vlan_index);
1934 err = vlan_add_to_slave(dev, slave, vlan, port, vlan_index);
1935 if (err)
1936 __mlx4_unregister_vlan(dev, port, vlan);
1937 }
1938 return err;
1939 }
1940
1941 static int counter_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1942 u64 in_param, u64 *out_param)
1943 {
1944 u32 index;
1945 int err;
1946
1947 if (op != RES_OP_RESERVE)
1948 return -EINVAL;
1949
1950 err = mlx4_grant_resource(dev, slave, RES_COUNTER, 1, 0);
1951 if (err)
1952 return err;
1953
1954 err = __mlx4_counter_alloc(dev, &index);
1955 if (err) {
1956 mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0);
1957 return err;
1958 }
1959
1960 err = add_res_range(dev, slave, index, 1, RES_COUNTER, 0);
1961 if (err) {
1962 __mlx4_counter_free(dev, index);
1963 mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0);
1964 } else {
1965 set_param_l(out_param, index);
1966 }
1967
1968 return err;
1969 }
1970
1971 static int xrcdn_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1972 u64 in_param, u64 *out_param)
1973 {
1974 u32 xrcdn;
1975 int err;
1976
1977 if (op != RES_OP_RESERVE)
1978 return -EINVAL;
1979
1980 err = __mlx4_xrcd_alloc(dev, &xrcdn);
1981 if (err)
1982 return err;
1983
1984 err = add_res_range(dev, slave, xrcdn, 1, RES_XRCD, 0);
1985 if (err)
1986 __mlx4_xrcd_free(dev, xrcdn);
1987 else
1988 set_param_l(out_param, xrcdn);
1989
1990 return err;
1991 }
1992
1993 int mlx4_ALLOC_RES_wrapper(struct mlx4_dev *dev, int slave,
1994 struct mlx4_vhcr *vhcr,
1995 struct mlx4_cmd_mailbox *inbox,
1996 struct mlx4_cmd_mailbox *outbox,
1997 struct mlx4_cmd_info *cmd)
1998 {
1999 int err;
2000 int alop = vhcr->op_modifier;
2001
2002 switch (vhcr->in_modifier & 0xFF) {
2003 case RES_QP:
2004 err = qp_alloc_res(dev, slave, vhcr->op_modifier, alop,
2005 vhcr->in_param, &vhcr->out_param);
2006 break;
2007
2008 case RES_MTT:
2009 err = mtt_alloc_res(dev, slave, vhcr->op_modifier, alop,
2010 vhcr->in_param, &vhcr->out_param);
2011 break;
2012
2013 case RES_MPT:
2014 err = mpt_alloc_res(dev, slave, vhcr->op_modifier, alop,
2015 vhcr->in_param, &vhcr->out_param);
2016 break;
2017
2018 case RES_CQ:
2019 err = cq_alloc_res(dev, slave, vhcr->op_modifier, alop,
2020 vhcr->in_param, &vhcr->out_param);
2021 break;
2022
2023 case RES_SRQ:
2024 err = srq_alloc_res(dev, slave, vhcr->op_modifier, alop,
2025 vhcr->in_param, &vhcr->out_param);
2026 break;
2027
2028 case RES_MAC:
2029 err = mac_alloc_res(dev, slave, vhcr->op_modifier, alop,
2030 vhcr->in_param, &vhcr->out_param,
2031 (vhcr->in_modifier >> 8) & 0xFF);
2032 break;
2033
2034 case RES_VLAN:
2035 err = vlan_alloc_res(dev, slave, vhcr->op_modifier, alop,
2036 vhcr->in_param, &vhcr->out_param,
2037 (vhcr->in_modifier >> 8) & 0xFF);
2038 break;
2039
2040 case RES_COUNTER:
2041 err = counter_alloc_res(dev, slave, vhcr->op_modifier, alop,
2042 vhcr->in_param, &vhcr->out_param);
2043 break;
2044
2045 case RES_XRCD:
2046 err = xrcdn_alloc_res(dev, slave, vhcr->op_modifier, alop,
2047 vhcr->in_param, &vhcr->out_param);
2048 break;
2049
2050 default:
2051 err = -EINVAL;
2052 break;
2053 }
2054
2055 return err;
2056 }
2057
2058 static int qp_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2059 u64 in_param)
2060 {
2061 int err;
2062 int count;
2063 int base;
2064 int qpn;
2065
2066 switch (op) {
2067 case RES_OP_RESERVE:
2068 base = get_param_l(&in_param) & 0x7fffff;
2069 count = get_param_h(&in_param);
2070 err = rem_res_range(dev, slave, base, count, RES_QP, 0);
2071 if (err)
2072 break;
2073 mlx4_release_resource(dev, slave, RES_QP, count, 0);
2074 __mlx4_qp_release_range(dev, base, count);
2075 break;
2076 case RES_OP_MAP_ICM:
2077 qpn = get_param_l(&in_param) & 0x7fffff;
2078 err = qp_res_start_move_to(dev, slave, qpn, RES_QP_RESERVED,
2079 NULL, 0);
2080 if (err)
2081 return err;
2082
2083 if (!fw_reserved(dev, qpn))
2084 __mlx4_qp_free_icm(dev, qpn);
2085
2086 res_end_move(dev, slave, RES_QP, qpn);
2087
2088 if (valid_reserved(dev, slave, qpn))
2089 err = rem_res_range(dev, slave, qpn, 1, RES_QP, 0);
2090 break;
2091 default:
2092 err = -EINVAL;
2093 break;
2094 }
2095 return err;
2096 }
2097
2098 static int mtt_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2099 u64 in_param, u64 *out_param)
2100 {
2101 int err = -EINVAL;
2102 int base;
2103 int order;
2104
2105 if (op != RES_OP_RESERVE_AND_MAP)
2106 return err;
2107
2108 base = get_param_l(&in_param);
2109 order = get_param_h(&in_param);
2110 err = rem_res_range(dev, slave, base, 1, RES_MTT, order);
2111 if (!err) {
2112 mlx4_release_resource(dev, slave, RES_MTT, 1 << order, 0);
2113 __mlx4_free_mtt_range(dev, base, order);
2114 }
2115 return err;
2116 }
2117
2118 static int mpt_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2119 u64 in_param)
2120 {
2121 int err = -EINVAL;
2122 int index;
2123 int id;
2124 struct res_mpt *mpt;
2125
2126 switch (op) {
2127 case RES_OP_RESERVE:
2128 index = get_param_l(&in_param);
2129 id = index & mpt_mask(dev);
2130 err = get_res(dev, slave, id, RES_MPT, &mpt);
2131 if (err)
2132 break;
2133 index = mpt->key;
2134 put_res(dev, slave, id, RES_MPT);
2135
2136 err = rem_res_range(dev, slave, id, 1, RES_MPT, 0);
2137 if (err)
2138 break;
2139 mlx4_release_resource(dev, slave, RES_MPT, 1, 0);
2140 __mlx4_mpt_release(dev, index);
2141 break;
2142 case RES_OP_MAP_ICM:
2143 index = get_param_l(&in_param);
2144 id = index & mpt_mask(dev);
2145 err = mr_res_start_move_to(dev, slave, id,
2146 RES_MPT_RESERVED, &mpt);
2147 if (err)
2148 return err;
2149
2150 __mlx4_mpt_free_icm(dev, mpt->key);
2151 res_end_move(dev, slave, RES_MPT, id);
2152 return err;
2153 break;
2154 default:
2155 err = -EINVAL;
2156 break;
2157 }
2158 return err;
2159 }
2160
2161 static int cq_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2162 u64 in_param, u64 *out_param)
2163 {
2164 int cqn;
2165 int err;
2166
2167 switch (op) {
2168 case RES_OP_RESERVE_AND_MAP:
2169 cqn = get_param_l(&in_param);
2170 err = rem_res_range(dev, slave, cqn, 1, RES_CQ, 0);
2171 if (err)
2172 break;
2173
2174 mlx4_release_resource(dev, slave, RES_CQ, 1, 0);
2175 __mlx4_cq_free_icm(dev, cqn);
2176 break;
2177
2178 default:
2179 err = -EINVAL;
2180 break;
2181 }
2182
2183 return err;
2184 }
2185
2186 static int srq_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2187 u64 in_param, u64 *out_param)
2188 {
2189 int srqn;
2190 int err;
2191
2192 switch (op) {
2193 case RES_OP_RESERVE_AND_MAP:
2194 srqn = get_param_l(&in_param);
2195 err = rem_res_range(dev, slave, srqn, 1, RES_SRQ, 0);
2196 if (err)
2197 break;
2198
2199 mlx4_release_resource(dev, slave, RES_SRQ, 1, 0);
2200 __mlx4_srq_free_icm(dev, srqn);
2201 break;
2202
2203 default:
2204 err = -EINVAL;
2205 break;
2206 }
2207
2208 return err;
2209 }
2210
2211 static int mac_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2212 u64 in_param, u64 *out_param, int in_port)
2213 {
2214 int port;
2215 int err = 0;
2216
2217 switch (op) {
2218 case RES_OP_RESERVE_AND_MAP:
2219 port = !in_port ? get_param_l(out_param) : in_port;
2220 port = mlx4_slave_convert_port(
2221 dev, slave, port);
2222
2223 if (port < 0)
2224 return -EINVAL;
2225 mac_del_from_slave(dev, slave, in_param, port);
2226 __mlx4_unregister_mac(dev, port, in_param);
2227 break;
2228 default:
2229 err = -EINVAL;
2230 break;
2231 }
2232
2233 return err;
2234
2235 }
2236
2237 static int vlan_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2238 u64 in_param, u64 *out_param, int port)
2239 {
2240 struct mlx4_priv *priv = mlx4_priv(dev);
2241 struct mlx4_slave_state *slave_state = priv->mfunc.master.slave_state;
2242 int err = 0;
2243
2244 port = mlx4_slave_convert_port(
2245 dev, slave, port);
2246
2247 if (port < 0)
2248 return -EINVAL;
2249 switch (op) {
2250 case RES_OP_RESERVE_AND_MAP:
2251 if (slave_state[slave].old_vlan_api)
2252 return 0;
2253 if (!port)
2254 return -EINVAL;
2255 vlan_del_from_slave(dev, slave, in_param, port);
2256 __mlx4_unregister_vlan(dev, port, in_param);
2257 break;
2258 default:
2259 err = -EINVAL;
2260 break;
2261 }
2262
2263 return err;
2264 }
2265
2266 static int counter_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2267 u64 in_param, u64 *out_param)
2268 {
2269 int index;
2270 int err;
2271
2272 if (op != RES_OP_RESERVE)
2273 return -EINVAL;
2274
2275 index = get_param_l(&in_param);
2276 err = rem_res_range(dev, slave, index, 1, RES_COUNTER, 0);
2277 if (err)
2278 return err;
2279
2280 __mlx4_counter_free(dev, index);
2281 mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0);
2282
2283 return err;
2284 }
2285
2286 static int xrcdn_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2287 u64 in_param, u64 *out_param)
2288 {
2289 int xrcdn;
2290 int err;
2291
2292 if (op != RES_OP_RESERVE)
2293 return -EINVAL;
2294
2295 xrcdn = get_param_l(&in_param);
2296 err = rem_res_range(dev, slave, xrcdn, 1, RES_XRCD, 0);
2297 if (err)
2298 return err;
2299
2300 __mlx4_xrcd_free(dev, xrcdn);
2301
2302 return err;
2303 }
2304
2305 int mlx4_FREE_RES_wrapper(struct mlx4_dev *dev, int slave,
2306 struct mlx4_vhcr *vhcr,
2307 struct mlx4_cmd_mailbox *inbox,
2308 struct mlx4_cmd_mailbox *outbox,
2309 struct mlx4_cmd_info *cmd)
2310 {
2311 int err = -EINVAL;
2312 int alop = vhcr->op_modifier;
2313
2314 switch (vhcr->in_modifier & 0xFF) {
2315 case RES_QP:
2316 err = qp_free_res(dev, slave, vhcr->op_modifier, alop,
2317 vhcr->in_param);
2318 break;
2319
2320 case RES_MTT:
2321 err = mtt_free_res(dev, slave, vhcr->op_modifier, alop,
2322 vhcr->in_param, &vhcr->out_param);
2323 break;
2324
2325 case RES_MPT:
2326 err = mpt_free_res(dev, slave, vhcr->op_modifier, alop,
2327 vhcr->in_param);
2328 break;
2329
2330 case RES_CQ:
2331 err = cq_free_res(dev, slave, vhcr->op_modifier, alop,
2332 vhcr->in_param, &vhcr->out_param);
2333 break;
2334
2335 case RES_SRQ:
2336 err = srq_free_res(dev, slave, vhcr->op_modifier, alop,
2337 vhcr->in_param, &vhcr->out_param);
2338 break;
2339
2340 case RES_MAC:
2341 err = mac_free_res(dev, slave, vhcr->op_modifier, alop,
2342 vhcr->in_param, &vhcr->out_param,
2343 (vhcr->in_modifier >> 8) & 0xFF);
2344 break;
2345
2346 case RES_VLAN:
2347 err = vlan_free_res(dev, slave, vhcr->op_modifier, alop,
2348 vhcr->in_param, &vhcr->out_param,
2349 (vhcr->in_modifier >> 8) & 0xFF);
2350 break;
2351
2352 case RES_COUNTER:
2353 err = counter_free_res(dev, slave, vhcr->op_modifier, alop,
2354 vhcr->in_param, &vhcr->out_param);
2355 break;
2356
2357 case RES_XRCD:
2358 err = xrcdn_free_res(dev, slave, vhcr->op_modifier, alop,
2359 vhcr->in_param, &vhcr->out_param);
2360
2361 default:
2362 break;
2363 }
2364 return err;
2365 }
2366
2367 /* ugly but other choices are uglier */
2368 static int mr_phys_mpt(struct mlx4_mpt_entry *mpt)
2369 {
2370 return (be32_to_cpu(mpt->flags) >> 9) & 1;
2371 }
2372
2373 static int mr_get_mtt_addr(struct mlx4_mpt_entry *mpt)
2374 {
2375 return (int)be64_to_cpu(mpt->mtt_addr) & 0xfffffff8;
2376 }
2377
2378 static int mr_get_mtt_size(struct mlx4_mpt_entry *mpt)
2379 {
2380 return be32_to_cpu(mpt->mtt_sz);
2381 }
2382
2383 static u32 mr_get_pd(struct mlx4_mpt_entry *mpt)
2384 {
2385 return be32_to_cpu(mpt->pd_flags) & 0x00ffffff;
2386 }
2387
2388 static int mr_is_fmr(struct mlx4_mpt_entry *mpt)
2389 {
2390 return be32_to_cpu(mpt->pd_flags) & MLX4_MPT_PD_FLAG_FAST_REG;
2391 }
2392
2393 static int mr_is_bind_enabled(struct mlx4_mpt_entry *mpt)
2394 {
2395 return be32_to_cpu(mpt->flags) & MLX4_MPT_FLAG_BIND_ENABLE;
2396 }
2397
2398 static int mr_is_region(struct mlx4_mpt_entry *mpt)
2399 {
2400 return be32_to_cpu(mpt->flags) & MLX4_MPT_FLAG_REGION;
2401 }
2402
2403 static int qp_get_mtt_addr(struct mlx4_qp_context *qpc)
2404 {
2405 return be32_to_cpu(qpc->mtt_base_addr_l) & 0xfffffff8;
2406 }
2407
2408 static int srq_get_mtt_addr(struct mlx4_srq_context *srqc)
2409 {
2410 return be32_to_cpu(srqc->mtt_base_addr_l) & 0xfffffff8;
2411 }
2412
2413 static int qp_get_mtt_size(struct mlx4_qp_context *qpc)
2414 {
2415 int page_shift = (qpc->log_page_size & 0x3f) + 12;
2416 int log_sq_size = (qpc->sq_size_stride >> 3) & 0xf;
2417 int log_sq_sride = qpc->sq_size_stride & 7;
2418 int log_rq_size = (qpc->rq_size_stride >> 3) & 0xf;
2419 int log_rq_stride = qpc->rq_size_stride & 7;
2420 int srq = (be32_to_cpu(qpc->srqn) >> 24) & 1;
2421 int rss = (be32_to_cpu(qpc->flags) >> 13) & 1;
2422 u32 ts = (be32_to_cpu(qpc->flags) >> 16) & 0xff;
2423 int xrc = (ts == MLX4_QP_ST_XRC) ? 1 : 0;
2424 int sq_size;
2425 int rq_size;
2426 int total_pages;
2427 int total_mem;
2428 int page_offset = (be32_to_cpu(qpc->params2) >> 6) & 0x3f;
2429
2430 sq_size = 1 << (log_sq_size + log_sq_sride + 4);
2431 rq_size = (srq|rss|xrc) ? 0 : (1 << (log_rq_size + log_rq_stride + 4));
2432 total_mem = sq_size + rq_size;
2433 total_pages =
2434 roundup_pow_of_two((total_mem + (page_offset << 6)) >>
2435 page_shift);
2436
2437 return total_pages;
2438 }
2439
2440 static int check_mtt_range(struct mlx4_dev *dev, int slave, int start,
2441 int size, struct res_mtt *mtt)
2442 {
2443 int res_start = mtt->com.res_id;
2444 int res_size = (1 << mtt->order);
2445
2446 if (start < res_start || start + size > res_start + res_size)
2447 return -EPERM;
2448 return 0;
2449 }
2450
2451 int mlx4_SW2HW_MPT_wrapper(struct mlx4_dev *dev, int slave,
2452 struct mlx4_vhcr *vhcr,
2453 struct mlx4_cmd_mailbox *inbox,
2454 struct mlx4_cmd_mailbox *outbox,
2455 struct mlx4_cmd_info *cmd)
2456 {
2457 int err;
2458 int index = vhcr->in_modifier;
2459 struct res_mtt *mtt;
2460 struct res_mpt *mpt;
2461 int mtt_base = mr_get_mtt_addr(inbox->buf) / dev->caps.mtt_entry_sz;
2462 int phys;
2463 int id;
2464 u32 pd;
2465 int pd_slave;
2466
2467 id = index & mpt_mask(dev);
2468 err = mr_res_start_move_to(dev, slave, id, RES_MPT_HW, &mpt);
2469 if (err)
2470 return err;
2471
2472 /* Disable memory windows for VFs. */
2473 if (!mr_is_region(inbox->buf)) {
2474 err = -EPERM;
2475 goto ex_abort;
2476 }
2477
2478 /* Make sure that the PD bits related to the slave id are zeros. */
2479 pd = mr_get_pd(inbox->buf);
2480 pd_slave = (pd >> 17) & 0x7f;
2481 if (pd_slave != 0 && pd_slave != slave) {
2482 err = -EPERM;
2483 goto ex_abort;
2484 }
2485
2486 if (mr_is_fmr(inbox->buf)) {
2487 /* FMR and Bind Enable are forbidden in slave devices. */
2488 if (mr_is_bind_enabled(inbox->buf)) {
2489 err = -EPERM;
2490 goto ex_abort;
2491 }
2492 /* FMR and Memory Windows are also forbidden. */
2493 if (!mr_is_region(inbox->buf)) {
2494 err = -EPERM;
2495 goto ex_abort;
2496 }
2497 }
2498
2499 phys = mr_phys_mpt(inbox->buf);
2500 if (!phys) {
2501 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt);
2502 if (err)
2503 goto ex_abort;
2504
2505 err = check_mtt_range(dev, slave, mtt_base,
2506 mr_get_mtt_size(inbox->buf), mtt);
2507 if (err)
2508 goto ex_put;
2509
2510 mpt->mtt = mtt;
2511 }
2512
2513 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
2514 if (err)
2515 goto ex_put;
2516
2517 if (!phys) {
2518 atomic_inc(&mtt->ref_count);
2519 put_res(dev, slave, mtt->com.res_id, RES_MTT);
2520 }
2521
2522 res_end_move(dev, slave, RES_MPT, id);
2523 return 0;
2524
2525 ex_put:
2526 if (!phys)
2527 put_res(dev, slave, mtt->com.res_id, RES_MTT);
2528 ex_abort:
2529 res_abort_move(dev, slave, RES_MPT, id);
2530
2531 return err;
2532 }
2533
2534 int mlx4_HW2SW_MPT_wrapper(struct mlx4_dev *dev, int slave,
2535 struct mlx4_vhcr *vhcr,
2536 struct mlx4_cmd_mailbox *inbox,
2537 struct mlx4_cmd_mailbox *outbox,
2538 struct mlx4_cmd_info *cmd)
2539 {
2540 int err;
2541 int index = vhcr->in_modifier;
2542 struct res_mpt *mpt;
2543 int id;
2544
2545 id = index & mpt_mask(dev);
2546 err = mr_res_start_move_to(dev, slave, id, RES_MPT_MAPPED, &mpt);
2547 if (err)
2548 return err;
2549
2550 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
2551 if (err)
2552 goto ex_abort;
2553
2554 if (mpt->mtt)
2555 atomic_dec(&mpt->mtt->ref_count);
2556
2557 res_end_move(dev, slave, RES_MPT, id);
2558 return 0;
2559
2560 ex_abort:
2561 res_abort_move(dev, slave, RES_MPT, id);
2562
2563 return err;
2564 }
2565
2566 int mlx4_QUERY_MPT_wrapper(struct mlx4_dev *dev, int slave,
2567 struct mlx4_vhcr *vhcr,
2568 struct mlx4_cmd_mailbox *inbox,
2569 struct mlx4_cmd_mailbox *outbox,
2570 struct mlx4_cmd_info *cmd)
2571 {
2572 int err;
2573 int index = vhcr->in_modifier;
2574 struct res_mpt *mpt;
2575 int id;
2576
2577 id = index & mpt_mask(dev);
2578 err = get_res(dev, slave, id, RES_MPT, &mpt);
2579 if (err)
2580 return err;
2581
2582 if (mpt->com.from_state != RES_MPT_HW) {
2583 err = -EBUSY;
2584 goto out;
2585 }
2586
2587 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
2588
2589 out:
2590 put_res(dev, slave, id, RES_MPT);
2591 return err;
2592 }
2593
2594 static int qp_get_rcqn(struct mlx4_qp_context *qpc)
2595 {
2596 return be32_to_cpu(qpc->cqn_recv) & 0xffffff;
2597 }
2598
2599 static int qp_get_scqn(struct mlx4_qp_context *qpc)
2600 {
2601 return be32_to_cpu(qpc->cqn_send) & 0xffffff;
2602 }
2603
2604 static u32 qp_get_srqn(struct mlx4_qp_context *qpc)
2605 {
2606 return be32_to_cpu(qpc->srqn) & 0x1ffffff;
2607 }
2608
2609 static void adjust_proxy_tun_qkey(struct mlx4_dev *dev, struct mlx4_vhcr *vhcr,
2610 struct mlx4_qp_context *context)
2611 {
2612 u32 qpn = vhcr->in_modifier & 0xffffff;
2613 u32 qkey = 0;
2614
2615 if (mlx4_get_parav_qkey(dev, qpn, &qkey))
2616 return;
2617
2618 /* adjust qkey in qp context */
2619 context->qkey = cpu_to_be32(qkey);
2620 }
2621
2622 int mlx4_RST2INIT_QP_wrapper(struct mlx4_dev *dev, int slave,
2623 struct mlx4_vhcr *vhcr,
2624 struct mlx4_cmd_mailbox *inbox,
2625 struct mlx4_cmd_mailbox *outbox,
2626 struct mlx4_cmd_info *cmd)
2627 {
2628 int err;
2629 int qpn = vhcr->in_modifier & 0x7fffff;
2630 struct res_mtt *mtt;
2631 struct res_qp *qp;
2632 struct mlx4_qp_context *qpc = inbox->buf + 8;
2633 int mtt_base = qp_get_mtt_addr(qpc) / dev->caps.mtt_entry_sz;
2634 int mtt_size = qp_get_mtt_size(qpc);
2635 struct res_cq *rcq;
2636 struct res_cq *scq;
2637 int rcqn = qp_get_rcqn(qpc);
2638 int scqn = qp_get_scqn(qpc);
2639 u32 srqn = qp_get_srqn(qpc) & 0xffffff;
2640 int use_srq = (qp_get_srqn(qpc) >> 24) & 1;
2641 struct res_srq *srq;
2642 int local_qpn = be32_to_cpu(qpc->local_qpn) & 0xffffff;
2643
2644 err = qp_res_start_move_to(dev, slave, qpn, RES_QP_HW, &qp, 0);
2645 if (err)
2646 return err;
2647 qp->local_qpn = local_qpn;
2648 qp->sched_queue = 0;
2649 qp->param3 = 0;
2650 qp->vlan_control = 0;
2651 qp->fvl_rx = 0;
2652 qp->pri_path_fl = 0;
2653 qp->vlan_index = 0;
2654 qp->feup = 0;
2655 qp->qpc_flags = be32_to_cpu(qpc->flags);
2656
2657 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt);
2658 if (err)
2659 goto ex_abort;
2660
2661 err = check_mtt_range(dev, slave, mtt_base, mtt_size, mtt);
2662 if (err)
2663 goto ex_put_mtt;
2664
2665 err = get_res(dev, slave, rcqn, RES_CQ, &rcq);
2666 if (err)
2667 goto ex_put_mtt;
2668
2669 if (scqn != rcqn) {
2670 err = get_res(dev, slave, scqn, RES_CQ, &scq);
2671 if (err)
2672 goto ex_put_rcq;
2673 } else
2674 scq = rcq;
2675
2676 if (use_srq) {
2677 err = get_res(dev, slave, srqn, RES_SRQ, &srq);
2678 if (err)
2679 goto ex_put_scq;
2680 }
2681
2682 adjust_proxy_tun_qkey(dev, vhcr, qpc);
2683 update_pkey_index(dev, slave, inbox);
2684 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
2685 if (err)
2686 goto ex_put_srq;
2687 atomic_inc(&mtt->ref_count);
2688 qp->mtt = mtt;
2689 atomic_inc(&rcq->ref_count);
2690 qp->rcq = rcq;
2691 atomic_inc(&scq->ref_count);
2692 qp->scq = scq;
2693
2694 if (scqn != rcqn)
2695 put_res(dev, slave, scqn, RES_CQ);
2696
2697 if (use_srq) {
2698 atomic_inc(&srq->ref_count);
2699 put_res(dev, slave, srqn, RES_SRQ);
2700 qp->srq = srq;
2701 }
2702 put_res(dev, slave, rcqn, RES_CQ);
2703 put_res(dev, slave, mtt_base, RES_MTT);
2704 res_end_move(dev, slave, RES_QP, qpn);
2705
2706 return 0;
2707
2708 ex_put_srq:
2709 if (use_srq)
2710 put_res(dev, slave, srqn, RES_SRQ);
2711 ex_put_scq:
2712 if (scqn != rcqn)
2713 put_res(dev, slave, scqn, RES_CQ);
2714 ex_put_rcq:
2715 put_res(dev, slave, rcqn, RES_CQ);
2716 ex_put_mtt:
2717 put_res(dev, slave, mtt_base, RES_MTT);
2718 ex_abort:
2719 res_abort_move(dev, slave, RES_QP, qpn);
2720
2721 return err;
2722 }
2723
2724 static int eq_get_mtt_addr(struct mlx4_eq_context *eqc)
2725 {
2726 return be32_to_cpu(eqc->mtt_base_addr_l) & 0xfffffff8;
2727 }
2728
2729 static int eq_get_mtt_size(struct mlx4_eq_context *eqc)
2730 {
2731 int log_eq_size = eqc->log_eq_size & 0x1f;
2732 int page_shift = (eqc->log_page_size & 0x3f) + 12;
2733
2734 if (log_eq_size + 5 < page_shift)
2735 return 1;
2736
2737 return 1 << (log_eq_size + 5 - page_shift);
2738 }
2739
2740 static int cq_get_mtt_addr(struct mlx4_cq_context *cqc)
2741 {
2742 return be32_to_cpu(cqc->mtt_base_addr_l) & 0xfffffff8;
2743 }
2744
2745 static int cq_get_mtt_size(struct mlx4_cq_context *cqc)
2746 {
2747 int log_cq_size = (be32_to_cpu(cqc->logsize_usrpage) >> 24) & 0x1f;
2748 int page_shift = (cqc->log_page_size & 0x3f) + 12;
2749
2750 if (log_cq_size + 5 < page_shift)
2751 return 1;
2752
2753 return 1 << (log_cq_size + 5 - page_shift);
2754 }
2755
2756 int mlx4_SW2HW_EQ_wrapper(struct mlx4_dev *dev, int slave,
2757 struct mlx4_vhcr *vhcr,
2758 struct mlx4_cmd_mailbox *inbox,
2759 struct mlx4_cmd_mailbox *outbox,
2760 struct mlx4_cmd_info *cmd)
2761 {
2762 int err;
2763 int eqn = vhcr->in_modifier;
2764 int res_id = (slave << 8) | eqn;
2765 struct mlx4_eq_context *eqc = inbox->buf;
2766 int mtt_base = eq_get_mtt_addr(eqc) / dev->caps.mtt_entry_sz;
2767 int mtt_size = eq_get_mtt_size(eqc);
2768 struct res_eq *eq;
2769 struct res_mtt *mtt;
2770
2771 err = add_res_range(dev, slave, res_id, 1, RES_EQ, 0);
2772 if (err)
2773 return err;
2774 err = eq_res_start_move_to(dev, slave, res_id, RES_EQ_HW, &eq);
2775 if (err)
2776 goto out_add;
2777
2778 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt);
2779 if (err)
2780 goto out_move;
2781
2782 err = check_mtt_range(dev, slave, mtt_base, mtt_size, mtt);
2783 if (err)
2784 goto out_put;
2785
2786 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
2787 if (err)
2788 goto out_put;
2789
2790 atomic_inc(&mtt->ref_count);
2791 eq->mtt = mtt;
2792 put_res(dev, slave, mtt->com.res_id, RES_MTT);
2793 res_end_move(dev, slave, RES_EQ, res_id);
2794 return 0;
2795
2796 out_put:
2797 put_res(dev, slave, mtt->com.res_id, RES_MTT);
2798 out_move:
2799 res_abort_move(dev, slave, RES_EQ, res_id);
2800 out_add:
2801 rem_res_range(dev, slave, res_id, 1, RES_EQ, 0);
2802 return err;
2803 }
2804
2805 static int get_containing_mtt(struct mlx4_dev *dev, int slave, int start,
2806 int len, struct res_mtt **res)
2807 {
2808 struct mlx4_priv *priv = mlx4_priv(dev);
2809 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
2810 struct res_mtt *mtt;
2811 int err = -EINVAL;
2812
2813 spin_lock_irq(mlx4_tlock(dev));
2814 list_for_each_entry(mtt, &tracker->slave_list[slave].res_list[RES_MTT],
2815 com.list) {
2816 if (!check_mtt_range(dev, slave, start, len, mtt)) {
2817 *res = mtt;
2818 mtt->com.from_state = mtt->com.state;
2819 mtt->com.state = RES_MTT_BUSY;
2820 err = 0;
2821 break;
2822 }
2823 }
2824 spin_unlock_irq(mlx4_tlock(dev));
2825
2826 return err;
2827 }
2828
2829 static int verify_qp_parameters(struct mlx4_dev *dev,
2830 struct mlx4_cmd_mailbox *inbox,
2831 enum qp_transition transition, u8 slave)
2832 {
2833 u32 qp_type;
2834 struct mlx4_qp_context *qp_ctx;
2835 enum mlx4_qp_optpar optpar;
2836 int port;
2837 int num_gids;
2838
2839 qp_ctx = inbox->buf + 8;
2840 qp_type = (be32_to_cpu(qp_ctx->flags) >> 16) & 0xff;
2841 optpar = be32_to_cpu(*(__be32 *) inbox->buf);
2842
2843 switch (qp_type) {
2844 case MLX4_QP_ST_RC:
2845 case MLX4_QP_ST_XRC:
2846 case MLX4_QP_ST_UC:
2847 switch (transition) {
2848 case QP_TRANS_INIT2RTR:
2849 case QP_TRANS_RTR2RTS:
2850 case QP_TRANS_RTS2RTS:
2851 case QP_TRANS_SQD2SQD:
2852 case QP_TRANS_SQD2RTS:
2853 if (slave != mlx4_master_func_num(dev))
2854 if (optpar & MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH) {
2855 port = (qp_ctx->pri_path.sched_queue >> 6 & 1) + 1;
2856 if (dev->caps.port_mask[port] != MLX4_PORT_TYPE_IB)
2857 num_gids = mlx4_get_slave_num_gids(dev, slave, port);
2858 else
2859 num_gids = 1;
2860 if (qp_ctx->pri_path.mgid_index >= num_gids)
2861 return -EINVAL;
2862 }
2863 if (optpar & MLX4_QP_OPTPAR_ALT_ADDR_PATH) {
2864 port = (qp_ctx->alt_path.sched_queue >> 6 & 1) + 1;
2865 if (dev->caps.port_mask[port] != MLX4_PORT_TYPE_IB)
2866 num_gids = mlx4_get_slave_num_gids(dev, slave, port);
2867 else
2868 num_gids = 1;
2869 if (qp_ctx->alt_path.mgid_index >= num_gids)
2870 return -EINVAL;
2871 }
2872 break;
2873 default:
2874 break;
2875 }
2876
2877 break;
2878 default:
2879 break;
2880 }
2881
2882 return 0;
2883 }
2884
2885 int mlx4_WRITE_MTT_wrapper(struct mlx4_dev *dev, int slave,
2886 struct mlx4_vhcr *vhcr,
2887 struct mlx4_cmd_mailbox *inbox,
2888 struct mlx4_cmd_mailbox *outbox,
2889 struct mlx4_cmd_info *cmd)
2890 {
2891 struct mlx4_mtt mtt;
2892 __be64 *page_list = inbox->buf;
2893 u64 *pg_list = (u64 *)page_list;
2894 int i;
2895 struct res_mtt *rmtt = NULL;
2896 int start = be64_to_cpu(page_list[0]);
2897 int npages = vhcr->in_modifier;
2898 int err;
2899
2900 err = get_containing_mtt(dev, slave, start, npages, &rmtt);
2901 if (err)
2902 return err;
2903
2904 /* Call the SW implementation of write_mtt:
2905 * - Prepare a dummy mtt struct
2906 * - Translate inbox contents to simple addresses in host endianess */
2907 mtt.offset = 0; /* TBD this is broken but I don't handle it since
2908 we don't really use it */
2909 mtt.order = 0;
2910 mtt.page_shift = 0;
2911 for (i = 0; i < npages; ++i)
2912 pg_list[i + 2] = (be64_to_cpu(page_list[i + 2]) & ~1ULL);
2913
2914 err = __mlx4_write_mtt(dev, &mtt, be64_to_cpu(page_list[0]), npages,
2915 ((u64 *)page_list + 2));
2916
2917 if (rmtt)
2918 put_res(dev, slave, rmtt->com.res_id, RES_MTT);
2919
2920 return err;
2921 }
2922
2923 int mlx4_HW2SW_EQ_wrapper(struct mlx4_dev *dev, int slave,
2924 struct mlx4_vhcr *vhcr,
2925 struct mlx4_cmd_mailbox *inbox,
2926 struct mlx4_cmd_mailbox *outbox,
2927 struct mlx4_cmd_info *cmd)
2928 {
2929 int eqn = vhcr->in_modifier;
2930 int res_id = eqn | (slave << 8);
2931 struct res_eq *eq;
2932 int err;
2933
2934 err = eq_res_start_move_to(dev, slave, res_id, RES_EQ_RESERVED, &eq);
2935 if (err)
2936 return err;
2937
2938 err = get_res(dev, slave, eq->mtt->com.res_id, RES_MTT, NULL);
2939 if (err)
2940 goto ex_abort;
2941
2942 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
2943 if (err)
2944 goto ex_put;
2945
2946 atomic_dec(&eq->mtt->ref_count);
2947 put_res(dev, slave, eq->mtt->com.res_id, RES_MTT);
2948 res_end_move(dev, slave, RES_EQ, res_id);
2949 rem_res_range(dev, slave, res_id, 1, RES_EQ, 0);
2950
2951 return 0;
2952
2953 ex_put:
2954 put_res(dev, slave, eq->mtt->com.res_id, RES_MTT);
2955 ex_abort:
2956 res_abort_move(dev, slave, RES_EQ, res_id);
2957
2958 return err;
2959 }
2960
2961 int mlx4_GEN_EQE(struct mlx4_dev *dev, int slave, struct mlx4_eqe *eqe)
2962 {
2963 struct mlx4_priv *priv = mlx4_priv(dev);
2964 struct mlx4_slave_event_eq_info *event_eq;
2965 struct mlx4_cmd_mailbox *mailbox;
2966 u32 in_modifier = 0;
2967 int err;
2968 int res_id;
2969 struct res_eq *req;
2970
2971 if (!priv->mfunc.master.slave_state)
2972 return -EINVAL;
2973
2974 event_eq = &priv->mfunc.master.slave_state[slave].event_eq[eqe->type];
2975
2976 /* Create the event only if the slave is registered */
2977 if (event_eq->eqn < 0)
2978 return 0;
2979
2980 mutex_lock(&priv->mfunc.master.gen_eqe_mutex[slave]);
2981 res_id = (slave << 8) | event_eq->eqn;
2982 err = get_res(dev, slave, res_id, RES_EQ, &req);
2983 if (err)
2984 goto unlock;
2985
2986 if (req->com.from_state != RES_EQ_HW) {
2987 err = -EINVAL;
2988 goto put;
2989 }
2990
2991 mailbox = mlx4_alloc_cmd_mailbox(dev);
2992 if (IS_ERR(mailbox)) {
2993 err = PTR_ERR(mailbox);
2994 goto put;
2995 }
2996
2997 if (eqe->type == MLX4_EVENT_TYPE_CMD) {
2998 ++event_eq->token;
2999 eqe->event.cmd.token = cpu_to_be16(event_eq->token);
3000 }
3001
3002 memcpy(mailbox->buf, (u8 *) eqe, 28);
3003
3004 in_modifier = (slave & 0xff) | ((event_eq->eqn & 0xff) << 16);
3005
3006 err = mlx4_cmd(dev, mailbox->dma, in_modifier, 0,
3007 MLX4_CMD_GEN_EQE, MLX4_CMD_TIME_CLASS_B,
3008 MLX4_CMD_NATIVE);
3009
3010 put_res(dev, slave, res_id, RES_EQ);
3011 mutex_unlock(&priv->mfunc.master.gen_eqe_mutex[slave]);
3012 mlx4_free_cmd_mailbox(dev, mailbox);
3013 return err;
3014
3015 put:
3016 put_res(dev, slave, res_id, RES_EQ);
3017
3018 unlock:
3019 mutex_unlock(&priv->mfunc.master.gen_eqe_mutex[slave]);
3020 return err;
3021 }
3022
3023 int mlx4_QUERY_EQ_wrapper(struct mlx4_dev *dev, int slave,
3024 struct mlx4_vhcr *vhcr,
3025 struct mlx4_cmd_mailbox *inbox,
3026 struct mlx4_cmd_mailbox *outbox,
3027 struct mlx4_cmd_info *cmd)
3028 {
3029 int eqn = vhcr->in_modifier;
3030 int res_id = eqn | (slave << 8);
3031 struct res_eq *eq;
3032 int err;
3033
3034 err = get_res(dev, slave, res_id, RES_EQ, &eq);
3035 if (err)
3036 return err;
3037
3038 if (eq->com.from_state != RES_EQ_HW) {
3039 err = -EINVAL;
3040 goto ex_put;
3041 }
3042
3043 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3044
3045 ex_put:
3046 put_res(dev, slave, res_id, RES_EQ);
3047 return err;
3048 }
3049
3050 int mlx4_SW2HW_CQ_wrapper(struct mlx4_dev *dev, int slave,
3051 struct mlx4_vhcr *vhcr,
3052 struct mlx4_cmd_mailbox *inbox,
3053 struct mlx4_cmd_mailbox *outbox,
3054 struct mlx4_cmd_info *cmd)
3055 {
3056 int err;
3057 int cqn = vhcr->in_modifier;
3058 struct mlx4_cq_context *cqc = inbox->buf;
3059 int mtt_base = cq_get_mtt_addr(cqc) / dev->caps.mtt_entry_sz;
3060 struct res_cq *cq;
3061 struct res_mtt *mtt;
3062
3063 err = cq_res_start_move_to(dev, slave, cqn, RES_CQ_HW, &cq);
3064 if (err)
3065 return err;
3066 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt);
3067 if (err)
3068 goto out_move;
3069 err = check_mtt_range(dev, slave, mtt_base, cq_get_mtt_size(cqc), mtt);
3070 if (err)
3071 goto out_put;
3072 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3073 if (err)
3074 goto out_put;
3075 atomic_inc(&mtt->ref_count);
3076 cq->mtt = mtt;
3077 put_res(dev, slave, mtt->com.res_id, RES_MTT);
3078 res_end_move(dev, slave, RES_CQ, cqn);
3079 return 0;
3080
3081 out_put:
3082 put_res(dev, slave, mtt->com.res_id, RES_MTT);
3083 out_move:
3084 res_abort_move(dev, slave, RES_CQ, cqn);
3085 return err;
3086 }
3087
3088 int mlx4_HW2SW_CQ_wrapper(struct mlx4_dev *dev, int slave,
3089 struct mlx4_vhcr *vhcr,
3090 struct mlx4_cmd_mailbox *inbox,
3091 struct mlx4_cmd_mailbox *outbox,
3092 struct mlx4_cmd_info *cmd)
3093 {
3094 int err;
3095 int cqn = vhcr->in_modifier;
3096 struct res_cq *cq;
3097
3098 err = cq_res_start_move_to(dev, slave, cqn, RES_CQ_ALLOCATED, &cq);
3099 if (err)
3100 return err;
3101 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3102 if (err)
3103 goto out_move;
3104 atomic_dec(&cq->mtt->ref_count);
3105 res_end_move(dev, slave, RES_CQ, cqn);
3106 return 0;
3107
3108 out_move:
3109 res_abort_move(dev, slave, RES_CQ, cqn);
3110 return err;
3111 }
3112
3113 int mlx4_QUERY_CQ_wrapper(struct mlx4_dev *dev, int slave,
3114 struct mlx4_vhcr *vhcr,
3115 struct mlx4_cmd_mailbox *inbox,
3116 struct mlx4_cmd_mailbox *outbox,
3117 struct mlx4_cmd_info *cmd)
3118 {
3119 int cqn = vhcr->in_modifier;
3120 struct res_cq *cq;
3121 int err;
3122
3123 err = get_res(dev, slave, cqn, RES_CQ, &cq);
3124 if (err)
3125 return err;
3126
3127 if (cq->com.from_state != RES_CQ_HW)
3128 goto ex_put;
3129
3130 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3131 ex_put:
3132 put_res(dev, slave, cqn, RES_CQ);
3133
3134 return err;
3135 }
3136
3137 static int handle_resize(struct mlx4_dev *dev, int slave,
3138 struct mlx4_vhcr *vhcr,
3139 struct mlx4_cmd_mailbox *inbox,
3140 struct mlx4_cmd_mailbox *outbox,
3141 struct mlx4_cmd_info *cmd,
3142 struct res_cq *cq)
3143 {
3144 int err;
3145 struct res_mtt *orig_mtt;
3146 struct res_mtt *mtt;
3147 struct mlx4_cq_context *cqc = inbox->buf;
3148 int mtt_base = cq_get_mtt_addr(cqc) / dev->caps.mtt_entry_sz;
3149
3150 err = get_res(dev, slave, cq->mtt->com.res_id, RES_MTT, &orig_mtt);
3151 if (err)
3152 return err;
3153
3154 if (orig_mtt != cq->mtt) {
3155 err = -EINVAL;
3156 goto ex_put;
3157 }
3158
3159 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt);
3160 if (err)
3161 goto ex_put;
3162
3163 err = check_mtt_range(dev, slave, mtt_base, cq_get_mtt_size(cqc), mtt);
3164 if (err)
3165 goto ex_put1;
3166 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3167 if (err)
3168 goto ex_put1;
3169 atomic_dec(&orig_mtt->ref_count);
3170 put_res(dev, slave, orig_mtt->com.res_id, RES_MTT);
3171 atomic_inc(&mtt->ref_count);
3172 cq->mtt = mtt;
3173 put_res(dev, slave, mtt->com.res_id, RES_MTT);
3174 return 0;
3175
3176 ex_put1:
3177 put_res(dev, slave, mtt->com.res_id, RES_MTT);
3178 ex_put:
3179 put_res(dev, slave, orig_mtt->com.res_id, RES_MTT);
3180
3181 return err;
3182
3183 }
3184
3185 int mlx4_MODIFY_CQ_wrapper(struct mlx4_dev *dev, int slave,
3186 struct mlx4_vhcr *vhcr,
3187 struct mlx4_cmd_mailbox *inbox,
3188 struct mlx4_cmd_mailbox *outbox,
3189 struct mlx4_cmd_info *cmd)
3190 {
3191 int cqn = vhcr->in_modifier;
3192 struct res_cq *cq;
3193 int err;
3194
3195 err = get_res(dev, slave, cqn, RES_CQ, &cq);
3196 if (err)
3197 return err;
3198
3199 if (cq->com.from_state != RES_CQ_HW)
3200 goto ex_put;
3201
3202 if (vhcr->op_modifier == 0) {
3203 err = handle_resize(dev, slave, vhcr, inbox, outbox, cmd, cq);
3204 goto ex_put;
3205 }
3206
3207 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3208 ex_put:
3209 put_res(dev, slave, cqn, RES_CQ);
3210
3211 return err;
3212 }
3213
3214 static int srq_get_mtt_size(struct mlx4_srq_context *srqc)
3215 {
3216 int log_srq_size = (be32_to_cpu(srqc->state_logsize_srqn) >> 24) & 0xf;
3217 int log_rq_stride = srqc->logstride & 7;
3218 int page_shift = (srqc->log_page_size & 0x3f) + 12;
3219
3220 if (log_srq_size + log_rq_stride + 4 < page_shift)
3221 return 1;
3222
3223 return 1 << (log_srq_size + log_rq_stride + 4 - page_shift);
3224 }
3225
3226 int mlx4_SW2HW_SRQ_wrapper(struct mlx4_dev *dev, int slave,
3227 struct mlx4_vhcr *vhcr,
3228 struct mlx4_cmd_mailbox *inbox,
3229 struct mlx4_cmd_mailbox *outbox,
3230 struct mlx4_cmd_info *cmd)
3231 {
3232 int err;
3233 int srqn = vhcr->in_modifier;
3234 struct res_mtt *mtt;
3235 struct res_srq *srq;
3236 struct mlx4_srq_context *srqc = inbox->buf;
3237 int mtt_base = srq_get_mtt_addr(srqc) / dev->caps.mtt_entry_sz;
3238
3239 if (srqn != (be32_to_cpu(srqc->state_logsize_srqn) & 0xffffff))
3240 return -EINVAL;
3241
3242 err = srq_res_start_move_to(dev, slave, srqn, RES_SRQ_HW, &srq);
3243 if (err)
3244 return err;
3245 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt);
3246 if (err)
3247 goto ex_abort;
3248 err = check_mtt_range(dev, slave, mtt_base, srq_get_mtt_size(srqc),
3249 mtt);
3250 if (err)
3251 goto ex_put_mtt;
3252
3253 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3254 if (err)
3255 goto ex_put_mtt;
3256
3257 atomic_inc(&mtt->ref_count);
3258 srq->mtt = mtt;
3259 put_res(dev, slave, mtt->com.res_id, RES_MTT);
3260 res_end_move(dev, slave, RES_SRQ, srqn);
3261 return 0;
3262
3263 ex_put_mtt:
3264 put_res(dev, slave, mtt->com.res_id, RES_MTT);
3265 ex_abort:
3266 res_abort_move(dev, slave, RES_SRQ, srqn);
3267
3268 return err;
3269 }
3270
3271 int mlx4_HW2SW_SRQ_wrapper(struct mlx4_dev *dev, int slave,
3272 struct mlx4_vhcr *vhcr,
3273 struct mlx4_cmd_mailbox *inbox,
3274 struct mlx4_cmd_mailbox *outbox,
3275 struct mlx4_cmd_info *cmd)
3276 {
3277 int err;
3278 int srqn = vhcr->in_modifier;
3279 struct res_srq *srq;
3280
3281 err = srq_res_start_move_to(dev, slave, srqn, RES_SRQ_ALLOCATED, &srq);
3282 if (err)
3283 return err;
3284 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3285 if (err)
3286 goto ex_abort;
3287 atomic_dec(&srq->mtt->ref_count);
3288 if (srq->cq)
3289 atomic_dec(&srq->cq->ref_count);
3290 res_end_move(dev, slave, RES_SRQ, srqn);
3291
3292 return 0;
3293
3294 ex_abort:
3295 res_abort_move(dev, slave, RES_SRQ, srqn);
3296
3297 return err;
3298 }
3299
3300 int mlx4_QUERY_SRQ_wrapper(struct mlx4_dev *dev, int slave,
3301 struct mlx4_vhcr *vhcr,
3302 struct mlx4_cmd_mailbox *inbox,
3303 struct mlx4_cmd_mailbox *outbox,
3304 struct mlx4_cmd_info *cmd)
3305 {
3306 int err;
3307 int srqn = vhcr->in_modifier;
3308 struct res_srq *srq;
3309
3310 err = get_res(dev, slave, srqn, RES_SRQ, &srq);
3311 if (err)
3312 return err;
3313 if (srq->com.from_state != RES_SRQ_HW) {
3314 err = -EBUSY;
3315 goto out;
3316 }
3317 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3318 out:
3319 put_res(dev, slave, srqn, RES_SRQ);
3320 return err;
3321 }
3322
3323 int mlx4_ARM_SRQ_wrapper(struct mlx4_dev *dev, int slave,
3324 struct mlx4_vhcr *vhcr,
3325 struct mlx4_cmd_mailbox *inbox,
3326 struct mlx4_cmd_mailbox *outbox,
3327 struct mlx4_cmd_info *cmd)
3328 {
3329 int err;
3330 int srqn = vhcr->in_modifier;
3331 struct res_srq *srq;
3332
3333 err = get_res(dev, slave, srqn, RES_SRQ, &srq);
3334 if (err)
3335 return err;
3336
3337 if (srq->com.from_state != RES_SRQ_HW) {
3338 err = -EBUSY;
3339 goto out;
3340 }
3341
3342 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3343 out:
3344 put_res(dev, slave, srqn, RES_SRQ);
3345 return err;
3346 }
3347
3348 int mlx4_GEN_QP_wrapper(struct mlx4_dev *dev, int slave,
3349 struct mlx4_vhcr *vhcr,
3350 struct mlx4_cmd_mailbox *inbox,
3351 struct mlx4_cmd_mailbox *outbox,
3352 struct mlx4_cmd_info *cmd)
3353 {
3354 int err;
3355 int qpn = vhcr->in_modifier & 0x7fffff;
3356 struct res_qp *qp;
3357
3358 err = get_res(dev, slave, qpn, RES_QP, &qp);
3359 if (err)
3360 return err;
3361 if (qp->com.from_state != RES_QP_HW) {
3362 err = -EBUSY;
3363 goto out;
3364 }
3365
3366 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3367 out:
3368 put_res(dev, slave, qpn, RES_QP);
3369 return err;
3370 }
3371
3372 int mlx4_INIT2INIT_QP_wrapper(struct mlx4_dev *dev, int slave,
3373 struct mlx4_vhcr *vhcr,
3374 struct mlx4_cmd_mailbox *inbox,
3375 struct mlx4_cmd_mailbox *outbox,
3376 struct mlx4_cmd_info *cmd)
3377 {
3378 struct mlx4_qp_context *context = inbox->buf + 8;
3379 adjust_proxy_tun_qkey(dev, vhcr, context);
3380 update_pkey_index(dev, slave, inbox);
3381 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3382 }
3383
3384 static int adjust_qp_sched_queue(struct mlx4_dev *dev, int slave,
3385 struct mlx4_qp_context *qpc,
3386 struct mlx4_cmd_mailbox *inbox)
3387 {
3388 enum mlx4_qp_optpar optpar = be32_to_cpu(*(__be32 *)inbox->buf);
3389 u8 pri_sched_queue;
3390 int port = mlx4_slave_convert_port(
3391 dev, slave, (qpc->pri_path.sched_queue >> 6 & 1) + 1) - 1;
3392
3393 if (port < 0)
3394 return -EINVAL;
3395
3396 pri_sched_queue = (qpc->pri_path.sched_queue & ~(1 << 6)) |
3397 ((port & 1) << 6);
3398
3399 if (optpar & MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH ||
3400 mlx4_is_eth(dev, port + 1)) {
3401 qpc->pri_path.sched_queue = pri_sched_queue;
3402 }
3403
3404 if (optpar & MLX4_QP_OPTPAR_ALT_ADDR_PATH) {
3405 port = mlx4_slave_convert_port(
3406 dev, slave, (qpc->alt_path.sched_queue >> 6 & 1)
3407 + 1) - 1;
3408 if (port < 0)
3409 return -EINVAL;
3410 qpc->alt_path.sched_queue =
3411 (qpc->alt_path.sched_queue & ~(1 << 6)) |
3412 (port & 1) << 6;
3413 }
3414 return 0;
3415 }
3416
3417 static int roce_verify_mac(struct mlx4_dev *dev, int slave,
3418 struct mlx4_qp_context *qpc,
3419 struct mlx4_cmd_mailbox *inbox)
3420 {
3421 u64 mac;
3422 int port;
3423 u32 ts = (be32_to_cpu(qpc->flags) >> 16) & 0xff;
3424 u8 sched = *(u8 *)(inbox->buf + 64);
3425 u8 smac_ix;
3426
3427 port = (sched >> 6 & 1) + 1;
3428 if (mlx4_is_eth(dev, port) && (ts != MLX4_QP_ST_MLX)) {
3429 smac_ix = qpc->pri_path.grh_mylmc & 0x7f;
3430 if (mac_find_smac_ix_in_slave(dev, slave, port, smac_ix, &mac))
3431 return -ENOENT;
3432 }
3433 return 0;
3434 }
3435
3436 int mlx4_INIT2RTR_QP_wrapper(struct mlx4_dev *dev, int slave,
3437 struct mlx4_vhcr *vhcr,
3438 struct mlx4_cmd_mailbox *inbox,
3439 struct mlx4_cmd_mailbox *outbox,
3440 struct mlx4_cmd_info *cmd)
3441 {
3442 int err;
3443 struct mlx4_qp_context *qpc = inbox->buf + 8;
3444 int qpn = vhcr->in_modifier & 0x7fffff;
3445 struct res_qp *qp;
3446 u8 orig_sched_queue;
3447 __be32 orig_param3 = qpc->param3;
3448 u8 orig_vlan_control = qpc->pri_path.vlan_control;
3449 u8 orig_fvl_rx = qpc->pri_path.fvl_rx;
3450 u8 orig_pri_path_fl = qpc->pri_path.fl;
3451 u8 orig_vlan_index = qpc->pri_path.vlan_index;
3452 u8 orig_feup = qpc->pri_path.feup;
3453
3454 err = adjust_qp_sched_queue(dev, slave, qpc, inbox);
3455 if (err)
3456 return err;
3457 err = verify_qp_parameters(dev, inbox, QP_TRANS_INIT2RTR, slave);
3458 if (err)
3459 return err;
3460
3461 if (roce_verify_mac(dev, slave, qpc, inbox))
3462 return -EINVAL;
3463
3464 update_pkey_index(dev, slave, inbox);
3465 update_gid(dev, inbox, (u8)slave);
3466 adjust_proxy_tun_qkey(dev, vhcr, qpc);
3467 orig_sched_queue = qpc->pri_path.sched_queue;
3468 err = update_vport_qp_param(dev, inbox, slave, qpn);
3469 if (err)
3470 return err;
3471
3472 err = get_res(dev, slave, qpn, RES_QP, &qp);
3473 if (err)
3474 return err;
3475 if (qp->com.from_state != RES_QP_HW) {
3476 err = -EBUSY;
3477 goto out;
3478 }
3479
3480 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3481 out:
3482 /* if no error, save sched queue value passed in by VF. This is
3483 * essentially the QOS value provided by the VF. This will be useful
3484 * if we allow dynamic changes from VST back to VGT
3485 */
3486 if (!err) {
3487 qp->sched_queue = orig_sched_queue;
3488 qp->param3 = orig_param3;
3489 qp->vlan_control = orig_vlan_control;
3490 qp->fvl_rx = orig_fvl_rx;
3491 qp->pri_path_fl = orig_pri_path_fl;
3492 qp->vlan_index = orig_vlan_index;
3493 qp->feup = orig_feup;
3494 }
3495 put_res(dev, slave, qpn, RES_QP);
3496 return err;
3497 }
3498
3499 int mlx4_RTR2RTS_QP_wrapper(struct mlx4_dev *dev, int slave,
3500 struct mlx4_vhcr *vhcr,
3501 struct mlx4_cmd_mailbox *inbox,
3502 struct mlx4_cmd_mailbox *outbox,
3503 struct mlx4_cmd_info *cmd)
3504 {
3505 int err;
3506 struct mlx4_qp_context *context = inbox->buf + 8;
3507
3508 err = adjust_qp_sched_queue(dev, slave, context, inbox);
3509 if (err)
3510 return err;
3511 err = verify_qp_parameters(dev, inbox, QP_TRANS_RTR2RTS, slave);
3512 if (err)
3513 return err;
3514
3515 update_pkey_index(dev, slave, inbox);
3516 update_gid(dev, inbox, (u8)slave);
3517 adjust_proxy_tun_qkey(dev, vhcr, context);
3518 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3519 }
3520
3521 int mlx4_RTS2RTS_QP_wrapper(struct mlx4_dev *dev, int slave,
3522 struct mlx4_vhcr *vhcr,
3523 struct mlx4_cmd_mailbox *inbox,
3524 struct mlx4_cmd_mailbox *outbox,
3525 struct mlx4_cmd_info *cmd)
3526 {
3527 int err;
3528 struct mlx4_qp_context *context = inbox->buf + 8;
3529
3530 err = adjust_qp_sched_queue(dev, slave, context, inbox);
3531 if (err)
3532 return err;
3533 err = verify_qp_parameters(dev, inbox, QP_TRANS_RTS2RTS, slave);
3534 if (err)
3535 return err;
3536
3537 update_pkey_index(dev, slave, inbox);
3538 update_gid(dev, inbox, (u8)slave);
3539 adjust_proxy_tun_qkey(dev, vhcr, context);
3540 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3541 }
3542
3543
3544 int mlx4_SQERR2RTS_QP_wrapper(struct mlx4_dev *dev, int slave,
3545 struct mlx4_vhcr *vhcr,
3546 struct mlx4_cmd_mailbox *inbox,
3547 struct mlx4_cmd_mailbox *outbox,
3548 struct mlx4_cmd_info *cmd)
3549 {
3550 struct mlx4_qp_context *context = inbox->buf + 8;
3551 int err = adjust_qp_sched_queue(dev, slave, context, inbox);
3552 if (err)
3553 return err;
3554 adjust_proxy_tun_qkey(dev, vhcr, context);
3555 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3556 }
3557
3558 int mlx4_SQD2SQD_QP_wrapper(struct mlx4_dev *dev, int slave,
3559 struct mlx4_vhcr *vhcr,
3560 struct mlx4_cmd_mailbox *inbox,
3561 struct mlx4_cmd_mailbox *outbox,
3562 struct mlx4_cmd_info *cmd)
3563 {
3564 int err;
3565 struct mlx4_qp_context *context = inbox->buf + 8;
3566
3567 err = adjust_qp_sched_queue(dev, slave, context, inbox);
3568 if (err)
3569 return err;
3570 err = verify_qp_parameters(dev, inbox, QP_TRANS_SQD2SQD, slave);
3571 if (err)
3572 return err;
3573
3574 adjust_proxy_tun_qkey(dev, vhcr, context);
3575 update_gid(dev, inbox, (u8)slave);
3576 update_pkey_index(dev, slave, inbox);
3577 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3578 }
3579
3580 int mlx4_SQD2RTS_QP_wrapper(struct mlx4_dev *dev, int slave,
3581 struct mlx4_vhcr *vhcr,
3582 struct mlx4_cmd_mailbox *inbox,
3583 struct mlx4_cmd_mailbox *outbox,
3584 struct mlx4_cmd_info *cmd)
3585 {
3586 int err;
3587 struct mlx4_qp_context *context = inbox->buf + 8;
3588
3589 err = adjust_qp_sched_queue(dev, slave, context, inbox);
3590 if (err)
3591 return err;
3592 err = verify_qp_parameters(dev, inbox, QP_TRANS_SQD2RTS, slave);
3593 if (err)
3594 return err;
3595
3596 adjust_proxy_tun_qkey(dev, vhcr, context);
3597 update_gid(dev, inbox, (u8)slave);
3598 update_pkey_index(dev, slave, inbox);
3599 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3600 }
3601
3602 int mlx4_2RST_QP_wrapper(struct mlx4_dev *dev, int slave,
3603 struct mlx4_vhcr *vhcr,
3604 struct mlx4_cmd_mailbox *inbox,
3605 struct mlx4_cmd_mailbox *outbox,
3606 struct mlx4_cmd_info *cmd)
3607 {
3608 int err;
3609 int qpn = vhcr->in_modifier & 0x7fffff;
3610 struct res_qp *qp;
3611
3612 err = qp_res_start_move_to(dev, slave, qpn, RES_QP_MAPPED, &qp, 0);
3613 if (err)
3614 return err;
3615 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3616 if (err)
3617 goto ex_abort;
3618
3619 atomic_dec(&qp->mtt->ref_count);
3620 atomic_dec(&qp->rcq->ref_count);
3621 atomic_dec(&qp->scq->ref_count);
3622 if (qp->srq)
3623 atomic_dec(&qp->srq->ref_count);
3624 res_end_move(dev, slave, RES_QP, qpn);
3625 return 0;
3626
3627 ex_abort:
3628 res_abort_move(dev, slave, RES_QP, qpn);
3629
3630 return err;
3631 }
3632
3633 static struct res_gid *find_gid(struct mlx4_dev *dev, int slave,
3634 struct res_qp *rqp, u8 *gid)
3635 {
3636 struct res_gid *res;
3637
3638 list_for_each_entry(res, &rqp->mcg_list, list) {
3639 if (!memcmp(res->gid, gid, 16))
3640 return res;
3641 }
3642 return NULL;
3643 }
3644
3645 static int add_mcg_res(struct mlx4_dev *dev, int slave, struct res_qp *rqp,
3646 u8 *gid, enum mlx4_protocol prot,
3647 enum mlx4_steer_type steer, u64 reg_id)
3648 {
3649 struct res_gid *res;
3650 int err;
3651
3652 res = kzalloc(sizeof *res, GFP_KERNEL);
3653 if (!res)
3654 return -ENOMEM;
3655
3656 spin_lock_irq(&rqp->mcg_spl);
3657 if (find_gid(dev, slave, rqp, gid)) {
3658 kfree(res);
3659 err = -EEXIST;
3660 } else {
3661 memcpy(res->gid, gid, 16);
3662 res->prot = prot;
3663 res->steer = steer;
3664 res->reg_id = reg_id;
3665 list_add_tail(&res->list, &rqp->mcg_list);
3666 err = 0;
3667 }
3668 spin_unlock_irq(&rqp->mcg_spl);
3669
3670 return err;
3671 }
3672
3673 static int rem_mcg_res(struct mlx4_dev *dev, int slave, struct res_qp *rqp,
3674 u8 *gid, enum mlx4_protocol prot,
3675 enum mlx4_steer_type steer, u64 *reg_id)
3676 {
3677 struct res_gid *res;
3678 int err;
3679
3680 spin_lock_irq(&rqp->mcg_spl);
3681 res = find_gid(dev, slave, rqp, gid);
3682 if (!res || res->prot != prot || res->steer != steer)
3683 err = -EINVAL;
3684 else {
3685 *reg_id = res->reg_id;
3686 list_del(&res->list);
3687 kfree(res);
3688 err = 0;
3689 }
3690 spin_unlock_irq(&rqp->mcg_spl);
3691
3692 return err;
3693 }
3694
3695 static int qp_attach(struct mlx4_dev *dev, int slave, struct mlx4_qp *qp,
3696 u8 gid[16], int block_loopback, enum mlx4_protocol prot,
3697 enum mlx4_steer_type type, u64 *reg_id)
3698 {
3699 switch (dev->caps.steering_mode) {
3700 case MLX4_STEERING_MODE_DEVICE_MANAGED: {
3701 int port = mlx4_slave_convert_port(dev, slave, gid[5]);
3702 if (port < 0)
3703 return port;
3704 return mlx4_trans_to_dmfs_attach(dev, qp, gid, port,
3705 block_loopback, prot,
3706 reg_id);
3707 }
3708 case MLX4_STEERING_MODE_B0:
3709 if (prot == MLX4_PROT_ETH) {
3710 int port = mlx4_slave_convert_port(dev, slave, gid[5]);
3711 if (port < 0)
3712 return port;
3713 gid[5] = port;
3714 }
3715 return mlx4_qp_attach_common(dev, qp, gid,
3716 block_loopback, prot, type);
3717 default:
3718 return -EINVAL;
3719 }
3720 }
3721
3722 static int qp_detach(struct mlx4_dev *dev, struct mlx4_qp *qp,
3723 u8 gid[16], enum mlx4_protocol prot,
3724 enum mlx4_steer_type type, u64 reg_id)
3725 {
3726 switch (dev->caps.steering_mode) {
3727 case MLX4_STEERING_MODE_DEVICE_MANAGED:
3728 return mlx4_flow_detach(dev, reg_id);
3729 case MLX4_STEERING_MODE_B0:
3730 return mlx4_qp_detach_common(dev, qp, gid, prot, type);
3731 default:
3732 return -EINVAL;
3733 }
3734 }
3735
3736 static int mlx4_adjust_port(struct mlx4_dev *dev, int slave,
3737 u8 *gid, enum mlx4_protocol prot)
3738 {
3739 int real_port;
3740
3741 if (prot != MLX4_PROT_ETH)
3742 return 0;
3743
3744 if (dev->caps.steering_mode == MLX4_STEERING_MODE_B0 ||
3745 dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) {
3746 real_port = mlx4_slave_convert_port(dev, slave, gid[5]);
3747 if (real_port < 0)
3748 return -EINVAL;
3749 gid[5] = real_port;
3750 }
3751
3752 return 0;
3753 }
3754
3755 int mlx4_QP_ATTACH_wrapper(struct mlx4_dev *dev, int slave,
3756 struct mlx4_vhcr *vhcr,
3757 struct mlx4_cmd_mailbox *inbox,
3758 struct mlx4_cmd_mailbox *outbox,
3759 struct mlx4_cmd_info *cmd)
3760 {
3761 struct mlx4_qp qp; /* dummy for calling attach/detach */
3762 u8 *gid = inbox->buf;
3763 enum mlx4_protocol prot = (vhcr->in_modifier >> 28) & 0x7;
3764 int err;
3765 int qpn;
3766 struct res_qp *rqp;
3767 u64 reg_id = 0;
3768 int attach = vhcr->op_modifier;
3769 int block_loopback = vhcr->in_modifier >> 31;
3770 u8 steer_type_mask = 2;
3771 enum mlx4_steer_type type = (gid[7] & steer_type_mask) >> 1;
3772
3773 qpn = vhcr->in_modifier & 0xffffff;
3774 err = get_res(dev, slave, qpn, RES_QP, &rqp);
3775 if (err)
3776 return err;
3777
3778 qp.qpn = qpn;
3779 if (attach) {
3780 err = qp_attach(dev, slave, &qp, gid, block_loopback, prot,
3781 type, &reg_id);
3782 if (err) {
3783 pr_err("Fail to attach rule to qp 0x%x\n", qpn);
3784 goto ex_put;
3785 }
3786 err = add_mcg_res(dev, slave, rqp, gid, prot, type, reg_id);
3787 if (err)
3788 goto ex_detach;
3789 } else {
3790 err = mlx4_adjust_port(dev, slave, gid, prot);
3791 if (err)
3792 goto ex_put;
3793
3794 err = rem_mcg_res(dev, slave, rqp, gid, prot, type, &reg_id);
3795 if (err)
3796 goto ex_put;
3797
3798 err = qp_detach(dev, &qp, gid, prot, type, reg_id);
3799 if (err)
3800 pr_err("Fail to detach rule from qp 0x%x reg_id = 0x%llx\n",
3801 qpn, reg_id);
3802 }
3803 put_res(dev, slave, qpn, RES_QP);
3804 return err;
3805
3806 ex_detach:
3807 qp_detach(dev, &qp, gid, prot, type, reg_id);
3808 ex_put:
3809 put_res(dev, slave, qpn, RES_QP);
3810 return err;
3811 }
3812
3813 /*
3814 * MAC validation for Flow Steering rules.
3815 * VF can attach rules only with a mac address which is assigned to it.
3816 */
3817 static int validate_eth_header_mac(int slave, struct _rule_hw *eth_header,
3818 struct list_head *rlist)
3819 {
3820 struct mac_res *res, *tmp;
3821 __be64 be_mac;
3822
3823 /* make sure it isn't multicast or broadcast mac*/
3824 if (!is_multicast_ether_addr(eth_header->eth.dst_mac) &&
3825 !is_broadcast_ether_addr(eth_header->eth.dst_mac)) {
3826 list_for_each_entry_safe(res, tmp, rlist, list) {
3827 be_mac = cpu_to_be64(res->mac << 16);
3828 if (ether_addr_equal((u8 *)&be_mac, eth_header->eth.dst_mac))
3829 return 0;
3830 }
3831 pr_err("MAC %pM doesn't belong to VF %d, Steering rule rejected\n",
3832 eth_header->eth.dst_mac, slave);
3833 return -EINVAL;
3834 }
3835 return 0;
3836 }
3837
3838 /*
3839 * In case of missing eth header, append eth header with a MAC address
3840 * assigned to the VF.
3841 */
3842 static int add_eth_header(struct mlx4_dev *dev, int slave,
3843 struct mlx4_cmd_mailbox *inbox,
3844 struct list_head *rlist, int header_id)
3845 {
3846 struct mac_res *res, *tmp;
3847 u8 port;
3848 struct mlx4_net_trans_rule_hw_ctrl *ctrl;
3849 struct mlx4_net_trans_rule_hw_eth *eth_header;
3850 struct mlx4_net_trans_rule_hw_ipv4 *ip_header;
3851 struct mlx4_net_trans_rule_hw_tcp_udp *l4_header;
3852 __be64 be_mac = 0;
3853 __be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16);
3854
3855 ctrl = (struct mlx4_net_trans_rule_hw_ctrl *)inbox->buf;
3856 port = ctrl->port;
3857 eth_header = (struct mlx4_net_trans_rule_hw_eth *)(ctrl + 1);
3858
3859 /* Clear a space in the inbox for eth header */
3860 switch (header_id) {
3861 case MLX4_NET_TRANS_RULE_ID_IPV4:
3862 ip_header =
3863 (struct mlx4_net_trans_rule_hw_ipv4 *)(eth_header + 1);
3864 memmove(ip_header, eth_header,
3865 sizeof(*ip_header) + sizeof(*l4_header));
3866 break;
3867 case MLX4_NET_TRANS_RULE_ID_TCP:
3868 case MLX4_NET_TRANS_RULE_ID_UDP:
3869 l4_header = (struct mlx4_net_trans_rule_hw_tcp_udp *)
3870 (eth_header + 1);
3871 memmove(l4_header, eth_header, sizeof(*l4_header));
3872 break;
3873 default:
3874 return -EINVAL;
3875 }
3876 list_for_each_entry_safe(res, tmp, rlist, list) {
3877 if (port == res->port) {
3878 be_mac = cpu_to_be64(res->mac << 16);
3879 break;
3880 }
3881 }
3882 if (!be_mac) {
3883 pr_err("Failed adding eth header to FS rule, Can't find matching MAC for port %d .\n",
3884 port);
3885 return -EINVAL;
3886 }
3887
3888 memset(eth_header, 0, sizeof(*eth_header));
3889 eth_header->size = sizeof(*eth_header) >> 2;
3890 eth_header->id = cpu_to_be16(__sw_id_hw[MLX4_NET_TRANS_RULE_ID_ETH]);
3891 memcpy(eth_header->dst_mac, &be_mac, ETH_ALEN);
3892 memcpy(eth_header->dst_mac_msk, &mac_msk, ETH_ALEN);
3893
3894 return 0;
3895
3896 }
3897
3898 int mlx4_QP_FLOW_STEERING_ATTACH_wrapper(struct mlx4_dev *dev, int slave,
3899 struct mlx4_vhcr *vhcr,
3900 struct mlx4_cmd_mailbox *inbox,
3901 struct mlx4_cmd_mailbox *outbox,
3902 struct mlx4_cmd_info *cmd)
3903 {
3904
3905 struct mlx4_priv *priv = mlx4_priv(dev);
3906 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
3907 struct list_head *rlist = &tracker->slave_list[slave].res_list[RES_MAC];
3908 int err;
3909 int qpn;
3910 struct res_qp *rqp;
3911 struct mlx4_net_trans_rule_hw_ctrl *ctrl;
3912 struct _rule_hw *rule_header;
3913 int header_id;
3914
3915 if (dev->caps.steering_mode !=
3916 MLX4_STEERING_MODE_DEVICE_MANAGED)
3917 return -EOPNOTSUPP;
3918
3919 ctrl = (struct mlx4_net_trans_rule_hw_ctrl *)inbox->buf;
3920 ctrl->port = mlx4_slave_convert_port(dev, slave, ctrl->port);
3921 if (ctrl->port <= 0)
3922 return -EINVAL;
3923 qpn = be32_to_cpu(ctrl->qpn) & 0xffffff;
3924 err = get_res(dev, slave, qpn, RES_QP, &rqp);
3925 if (err) {
3926 pr_err("Steering rule with qpn 0x%x rejected.\n", qpn);
3927 return err;
3928 }
3929 rule_header = (struct _rule_hw *)(ctrl + 1);
3930 header_id = map_hw_to_sw_id(be16_to_cpu(rule_header->id));
3931
3932 switch (header_id) {
3933 case MLX4_NET_TRANS_RULE_ID_ETH:
3934 if (validate_eth_header_mac(slave, rule_header, rlist)) {
3935 err = -EINVAL;
3936 goto err_put;
3937 }
3938 break;
3939 case MLX4_NET_TRANS_RULE_ID_IB:
3940 break;
3941 case MLX4_NET_TRANS_RULE_ID_IPV4:
3942 case MLX4_NET_TRANS_RULE_ID_TCP:
3943 case MLX4_NET_TRANS_RULE_ID_UDP:
3944 pr_warn("Can't attach FS rule without L2 headers, adding L2 header.\n");
3945 if (add_eth_header(dev, slave, inbox, rlist, header_id)) {
3946 err = -EINVAL;
3947 goto err_put;
3948 }
3949 vhcr->in_modifier +=
3950 sizeof(struct mlx4_net_trans_rule_hw_eth) >> 2;
3951 break;
3952 default:
3953 pr_err("Corrupted mailbox.\n");
3954 err = -EINVAL;
3955 goto err_put;
3956 }
3957
3958 err = mlx4_cmd_imm(dev, inbox->dma, &vhcr->out_param,
3959 vhcr->in_modifier, 0,
3960 MLX4_QP_FLOW_STEERING_ATTACH, MLX4_CMD_TIME_CLASS_A,
3961 MLX4_CMD_NATIVE);
3962 if (err)
3963 goto err_put;
3964
3965 err = add_res_range(dev, slave, vhcr->out_param, 1, RES_FS_RULE, qpn);
3966 if (err) {
3967 mlx4_err(dev, "Fail to add flow steering resources.\n ");
3968 /* detach rule*/
3969 mlx4_cmd(dev, vhcr->out_param, 0, 0,
3970 MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A,
3971 MLX4_CMD_NATIVE);
3972 goto err_put;
3973 }
3974 atomic_inc(&rqp->ref_count);
3975 err_put:
3976 put_res(dev, slave, qpn, RES_QP);
3977 return err;
3978 }
3979
3980 int mlx4_QP_FLOW_STEERING_DETACH_wrapper(struct mlx4_dev *dev, int slave,
3981 struct mlx4_vhcr *vhcr,
3982 struct mlx4_cmd_mailbox *inbox,
3983 struct mlx4_cmd_mailbox *outbox,
3984 struct mlx4_cmd_info *cmd)
3985 {
3986 int err;
3987 struct res_qp *rqp;
3988 struct res_fs_rule *rrule;
3989
3990 if (dev->caps.steering_mode !=
3991 MLX4_STEERING_MODE_DEVICE_MANAGED)
3992 return -EOPNOTSUPP;
3993
3994 err = get_res(dev, slave, vhcr->in_param, RES_FS_RULE, &rrule);
3995 if (err)
3996 return err;
3997 /* Release the rule form busy state before removal */
3998 put_res(dev, slave, vhcr->in_param, RES_FS_RULE);
3999 err = get_res(dev, slave, rrule->qpn, RES_QP, &rqp);
4000 if (err)
4001 return err;
4002
4003 err = rem_res_range(dev, slave, vhcr->in_param, 1, RES_FS_RULE, 0);
4004 if (err) {
4005 mlx4_err(dev, "Fail to remove flow steering resources.\n ");
4006 goto out;
4007 }
4008
4009 err = mlx4_cmd(dev, vhcr->in_param, 0, 0,
4010 MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A,
4011 MLX4_CMD_NATIVE);
4012 if (!err)
4013 atomic_dec(&rqp->ref_count);
4014 out:
4015 put_res(dev, slave, rrule->qpn, RES_QP);
4016 return err;
4017 }
4018
4019 enum {
4020 BUSY_MAX_RETRIES = 10
4021 };
4022
4023 int mlx4_QUERY_IF_STAT_wrapper(struct mlx4_dev *dev, int slave,
4024 struct mlx4_vhcr *vhcr,
4025 struct mlx4_cmd_mailbox *inbox,
4026 struct mlx4_cmd_mailbox *outbox,
4027 struct mlx4_cmd_info *cmd)
4028 {
4029 int err;
4030 int index = vhcr->in_modifier & 0xffff;
4031
4032 err = get_res(dev, slave, index, RES_COUNTER, NULL);
4033 if (err)
4034 return err;
4035
4036 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
4037 put_res(dev, slave, index, RES_COUNTER);
4038 return err;
4039 }
4040
4041 static void detach_qp(struct mlx4_dev *dev, int slave, struct res_qp *rqp)
4042 {
4043 struct res_gid *rgid;
4044 struct res_gid *tmp;
4045 struct mlx4_qp qp; /* dummy for calling attach/detach */
4046
4047 list_for_each_entry_safe(rgid, tmp, &rqp->mcg_list, list) {
4048 switch (dev->caps.steering_mode) {
4049 case MLX4_STEERING_MODE_DEVICE_MANAGED:
4050 mlx4_flow_detach(dev, rgid->reg_id);
4051 break;
4052 case MLX4_STEERING_MODE_B0:
4053 qp.qpn = rqp->local_qpn;
4054 (void) mlx4_qp_detach_common(dev, &qp, rgid->gid,
4055 rgid->prot, rgid->steer);
4056 break;
4057 }
4058 list_del(&rgid->list);
4059 kfree(rgid);
4060 }
4061 }
4062
4063 static int _move_all_busy(struct mlx4_dev *dev, int slave,
4064 enum mlx4_resource type, int print)
4065 {
4066 struct mlx4_priv *priv = mlx4_priv(dev);
4067 struct mlx4_resource_tracker *tracker =
4068 &priv->mfunc.master.res_tracker;
4069 struct list_head *rlist = &tracker->slave_list[slave].res_list[type];
4070 struct res_common *r;
4071 struct res_common *tmp;
4072 int busy;
4073
4074 busy = 0;
4075 spin_lock_irq(mlx4_tlock(dev));
4076 list_for_each_entry_safe(r, tmp, rlist, list) {
4077 if (r->owner == slave) {
4078 if (!r->removing) {
4079 if (r->state == RES_ANY_BUSY) {
4080 if (print)
4081 mlx4_dbg(dev,
4082 "%s id 0x%llx is busy\n",
4083 ResourceType(type),
4084 r->res_id);
4085 ++busy;
4086 } else {
4087 r->from_state = r->state;
4088 r->state = RES_ANY_BUSY;
4089 r->removing = 1;
4090 }
4091 }
4092 }
4093 }
4094 spin_unlock_irq(mlx4_tlock(dev));
4095
4096 return busy;
4097 }
4098
4099 static int move_all_busy(struct mlx4_dev *dev, int slave,
4100 enum mlx4_resource type)
4101 {
4102 unsigned long begin;
4103 int busy;
4104
4105 begin = jiffies;
4106 do {
4107 busy = _move_all_busy(dev, slave, type, 0);
4108 if (time_after(jiffies, begin + 5 * HZ))
4109 break;
4110 if (busy)
4111 cond_resched();
4112 } while (busy);
4113
4114 if (busy)
4115 busy = _move_all_busy(dev, slave, type, 1);
4116
4117 return busy;
4118 }
4119 static void rem_slave_qps(struct mlx4_dev *dev, int slave)
4120 {
4121 struct mlx4_priv *priv = mlx4_priv(dev);
4122 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4123 struct list_head *qp_list =
4124 &tracker->slave_list[slave].res_list[RES_QP];
4125 struct res_qp *qp;
4126 struct res_qp *tmp;
4127 int state;
4128 u64 in_param;
4129 int qpn;
4130 int err;
4131
4132 err = move_all_busy(dev, slave, RES_QP);
4133 if (err)
4134 mlx4_warn(dev, "rem_slave_qps: Could not move all qps to busy"
4135 "for slave %d\n", slave);
4136
4137 spin_lock_irq(mlx4_tlock(dev));
4138 list_for_each_entry_safe(qp, tmp, qp_list, com.list) {
4139 spin_unlock_irq(mlx4_tlock(dev));
4140 if (qp->com.owner == slave) {
4141 qpn = qp->com.res_id;
4142 detach_qp(dev, slave, qp);
4143 state = qp->com.from_state;
4144 while (state != 0) {
4145 switch (state) {
4146 case RES_QP_RESERVED:
4147 spin_lock_irq(mlx4_tlock(dev));
4148 rb_erase(&qp->com.node,
4149 &tracker->res_tree[RES_QP]);
4150 list_del(&qp->com.list);
4151 spin_unlock_irq(mlx4_tlock(dev));
4152 if (!valid_reserved(dev, slave, qpn)) {
4153 __mlx4_qp_release_range(dev, qpn, 1);
4154 mlx4_release_resource(dev, slave,
4155 RES_QP, 1, 0);
4156 }
4157 kfree(qp);
4158 state = 0;
4159 break;
4160 case RES_QP_MAPPED:
4161 if (!valid_reserved(dev, slave, qpn))
4162 __mlx4_qp_free_icm(dev, qpn);
4163 state = RES_QP_RESERVED;
4164 break;
4165 case RES_QP_HW:
4166 in_param = slave;
4167 err = mlx4_cmd(dev, in_param,
4168 qp->local_qpn, 2,
4169 MLX4_CMD_2RST_QP,
4170 MLX4_CMD_TIME_CLASS_A,
4171 MLX4_CMD_NATIVE);
4172 if (err)
4173 mlx4_dbg(dev, "rem_slave_qps: failed"
4174 " to move slave %d qpn %d to"
4175 " reset\n", slave,
4176 qp->local_qpn);
4177 atomic_dec(&qp->rcq->ref_count);
4178 atomic_dec(&qp->scq->ref_count);
4179 atomic_dec(&qp->mtt->ref_count);
4180 if (qp->srq)
4181 atomic_dec(&qp->srq->ref_count);
4182 state = RES_QP_MAPPED;
4183 break;
4184 default:
4185 state = 0;
4186 }
4187 }
4188 }
4189 spin_lock_irq(mlx4_tlock(dev));
4190 }
4191 spin_unlock_irq(mlx4_tlock(dev));
4192 }
4193
4194 static void rem_slave_srqs(struct mlx4_dev *dev, int slave)
4195 {
4196 struct mlx4_priv *priv = mlx4_priv(dev);
4197 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4198 struct list_head *srq_list =
4199 &tracker->slave_list[slave].res_list[RES_SRQ];
4200 struct res_srq *srq;
4201 struct res_srq *tmp;
4202 int state;
4203 u64 in_param;
4204 LIST_HEAD(tlist);
4205 int srqn;
4206 int err;
4207
4208 err = move_all_busy(dev, slave, RES_SRQ);
4209 if (err)
4210 mlx4_warn(dev, "rem_slave_srqs: Could not move all srqs to "
4211 "busy for slave %d\n", slave);
4212
4213 spin_lock_irq(mlx4_tlock(dev));
4214 list_for_each_entry_safe(srq, tmp, srq_list, com.list) {
4215 spin_unlock_irq(mlx4_tlock(dev));
4216 if (srq->com.owner == slave) {
4217 srqn = srq->com.res_id;
4218 state = srq->com.from_state;
4219 while (state != 0) {
4220 switch (state) {
4221 case RES_SRQ_ALLOCATED:
4222 __mlx4_srq_free_icm(dev, srqn);
4223 spin_lock_irq(mlx4_tlock(dev));
4224 rb_erase(&srq->com.node,
4225 &tracker->res_tree[RES_SRQ]);
4226 list_del(&srq->com.list);
4227 spin_unlock_irq(mlx4_tlock(dev));
4228 mlx4_release_resource(dev, slave,
4229 RES_SRQ, 1, 0);
4230 kfree(srq);
4231 state = 0;
4232 break;
4233
4234 case RES_SRQ_HW:
4235 in_param = slave;
4236 err = mlx4_cmd(dev, in_param, srqn, 1,
4237 MLX4_CMD_HW2SW_SRQ,
4238 MLX4_CMD_TIME_CLASS_A,
4239 MLX4_CMD_NATIVE);
4240 if (err)
4241 mlx4_dbg(dev, "rem_slave_srqs: failed"
4242 " to move slave %d srq %d to"
4243 " SW ownership\n",
4244 slave, srqn);
4245
4246 atomic_dec(&srq->mtt->ref_count);
4247 if (srq->cq)
4248 atomic_dec(&srq->cq->ref_count);
4249 state = RES_SRQ_ALLOCATED;
4250 break;
4251
4252 default:
4253 state = 0;
4254 }
4255 }
4256 }
4257 spin_lock_irq(mlx4_tlock(dev));
4258 }
4259 spin_unlock_irq(mlx4_tlock(dev));
4260 }
4261
4262 static void rem_slave_cqs(struct mlx4_dev *dev, int slave)
4263 {
4264 struct mlx4_priv *priv = mlx4_priv(dev);
4265 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4266 struct list_head *cq_list =
4267 &tracker->slave_list[slave].res_list[RES_CQ];
4268 struct res_cq *cq;
4269 struct res_cq *tmp;
4270 int state;
4271 u64 in_param;
4272 LIST_HEAD(tlist);
4273 int cqn;
4274 int err;
4275
4276 err = move_all_busy(dev, slave, RES_CQ);
4277 if (err)
4278 mlx4_warn(dev, "rem_slave_cqs: Could not move all cqs to "
4279 "busy for slave %d\n", slave);
4280
4281 spin_lock_irq(mlx4_tlock(dev));
4282 list_for_each_entry_safe(cq, tmp, cq_list, com.list) {
4283 spin_unlock_irq(mlx4_tlock(dev));
4284 if (cq->com.owner == slave && !atomic_read(&cq->ref_count)) {
4285 cqn = cq->com.res_id;
4286 state = cq->com.from_state;
4287 while (state != 0) {
4288 switch (state) {
4289 case RES_CQ_ALLOCATED:
4290 __mlx4_cq_free_icm(dev, cqn);
4291 spin_lock_irq(mlx4_tlock(dev));
4292 rb_erase(&cq->com.node,
4293 &tracker->res_tree[RES_CQ]);
4294 list_del(&cq->com.list);
4295 spin_unlock_irq(mlx4_tlock(dev));
4296 mlx4_release_resource(dev, slave,
4297 RES_CQ, 1, 0);
4298 kfree(cq);
4299 state = 0;
4300 break;
4301
4302 case RES_CQ_HW:
4303 in_param = slave;
4304 err = mlx4_cmd(dev, in_param, cqn, 1,
4305 MLX4_CMD_HW2SW_CQ,
4306 MLX4_CMD_TIME_CLASS_A,
4307 MLX4_CMD_NATIVE);
4308 if (err)
4309 mlx4_dbg(dev, "rem_slave_cqs: failed"
4310 " to move slave %d cq %d to"
4311 " SW ownership\n",
4312 slave, cqn);
4313 atomic_dec(&cq->mtt->ref_count);
4314 state = RES_CQ_ALLOCATED;
4315 break;
4316
4317 default:
4318 state = 0;
4319 }
4320 }
4321 }
4322 spin_lock_irq(mlx4_tlock(dev));
4323 }
4324 spin_unlock_irq(mlx4_tlock(dev));
4325 }
4326
4327 static void rem_slave_mrs(struct mlx4_dev *dev, int slave)
4328 {
4329 struct mlx4_priv *priv = mlx4_priv(dev);
4330 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4331 struct list_head *mpt_list =
4332 &tracker->slave_list[slave].res_list[RES_MPT];
4333 struct res_mpt *mpt;
4334 struct res_mpt *tmp;
4335 int state;
4336 u64 in_param;
4337 LIST_HEAD(tlist);
4338 int mptn;
4339 int err;
4340
4341 err = move_all_busy(dev, slave, RES_MPT);
4342 if (err)
4343 mlx4_warn(dev, "rem_slave_mrs: Could not move all mpts to "
4344 "busy for slave %d\n", slave);
4345
4346 spin_lock_irq(mlx4_tlock(dev));
4347 list_for_each_entry_safe(mpt, tmp, mpt_list, com.list) {
4348 spin_unlock_irq(mlx4_tlock(dev));
4349 if (mpt->com.owner == slave) {
4350 mptn = mpt->com.res_id;
4351 state = mpt->com.from_state;
4352 while (state != 0) {
4353 switch (state) {
4354 case RES_MPT_RESERVED:
4355 __mlx4_mpt_release(dev, mpt->key);
4356 spin_lock_irq(mlx4_tlock(dev));
4357 rb_erase(&mpt->com.node,
4358 &tracker->res_tree[RES_MPT]);
4359 list_del(&mpt->com.list);
4360 spin_unlock_irq(mlx4_tlock(dev));
4361 mlx4_release_resource(dev, slave,
4362 RES_MPT, 1, 0);
4363 kfree(mpt);
4364 state = 0;
4365 break;
4366
4367 case RES_MPT_MAPPED:
4368 __mlx4_mpt_free_icm(dev, mpt->key);
4369 state = RES_MPT_RESERVED;
4370 break;
4371
4372 case RES_MPT_HW:
4373 in_param = slave;
4374 err = mlx4_cmd(dev, in_param, mptn, 0,
4375 MLX4_CMD_HW2SW_MPT,
4376 MLX4_CMD_TIME_CLASS_A,
4377 MLX4_CMD_NATIVE);
4378 if (err)
4379 mlx4_dbg(dev, "rem_slave_mrs: failed"
4380 " to move slave %d mpt %d to"
4381 " SW ownership\n",
4382 slave, mptn);
4383 if (mpt->mtt)
4384 atomic_dec(&mpt->mtt->ref_count);
4385 state = RES_MPT_MAPPED;
4386 break;
4387 default:
4388 state = 0;
4389 }
4390 }
4391 }
4392 spin_lock_irq(mlx4_tlock(dev));
4393 }
4394 spin_unlock_irq(mlx4_tlock(dev));
4395 }
4396
4397 static void rem_slave_mtts(struct mlx4_dev *dev, int slave)
4398 {
4399 struct mlx4_priv *priv = mlx4_priv(dev);
4400 struct mlx4_resource_tracker *tracker =
4401 &priv->mfunc.master.res_tracker;
4402 struct list_head *mtt_list =
4403 &tracker->slave_list[slave].res_list[RES_MTT];
4404 struct res_mtt *mtt;
4405 struct res_mtt *tmp;
4406 int state;
4407 LIST_HEAD(tlist);
4408 int base;
4409 int err;
4410
4411 err = move_all_busy(dev, slave, RES_MTT);
4412 if (err)
4413 mlx4_warn(dev, "rem_slave_mtts: Could not move all mtts to "
4414 "busy for slave %d\n", slave);
4415
4416 spin_lock_irq(mlx4_tlock(dev));
4417 list_for_each_entry_safe(mtt, tmp, mtt_list, com.list) {
4418 spin_unlock_irq(mlx4_tlock(dev));
4419 if (mtt->com.owner == slave) {
4420 base = mtt->com.res_id;
4421 state = mtt->com.from_state;
4422 while (state != 0) {
4423 switch (state) {
4424 case RES_MTT_ALLOCATED:
4425 __mlx4_free_mtt_range(dev, base,
4426 mtt->order);
4427 spin_lock_irq(mlx4_tlock(dev));
4428 rb_erase(&mtt->com.node,
4429 &tracker->res_tree[RES_MTT]);
4430 list_del(&mtt->com.list);
4431 spin_unlock_irq(mlx4_tlock(dev));
4432 mlx4_release_resource(dev, slave, RES_MTT,
4433 1 << mtt->order, 0);
4434 kfree(mtt);
4435 state = 0;
4436 break;
4437
4438 default:
4439 state = 0;
4440 }
4441 }
4442 }
4443 spin_lock_irq(mlx4_tlock(dev));
4444 }
4445 spin_unlock_irq(mlx4_tlock(dev));
4446 }
4447
4448 static void rem_slave_fs_rule(struct mlx4_dev *dev, int slave)
4449 {
4450 struct mlx4_priv *priv = mlx4_priv(dev);
4451 struct mlx4_resource_tracker *tracker =
4452 &priv->mfunc.master.res_tracker;
4453 struct list_head *fs_rule_list =
4454 &tracker->slave_list[slave].res_list[RES_FS_RULE];
4455 struct res_fs_rule *fs_rule;
4456 struct res_fs_rule *tmp;
4457 int state;
4458 u64 base;
4459 int err;
4460
4461 err = move_all_busy(dev, slave, RES_FS_RULE);
4462 if (err)
4463 mlx4_warn(dev, "rem_slave_fs_rule: Could not move all mtts to busy for slave %d\n",
4464 slave);
4465
4466 spin_lock_irq(mlx4_tlock(dev));
4467 list_for_each_entry_safe(fs_rule, tmp, fs_rule_list, com.list) {
4468 spin_unlock_irq(mlx4_tlock(dev));
4469 if (fs_rule->com.owner == slave) {
4470 base = fs_rule->com.res_id;
4471 state = fs_rule->com.from_state;
4472 while (state != 0) {
4473 switch (state) {
4474 case RES_FS_RULE_ALLOCATED:
4475 /* detach rule */
4476 err = mlx4_cmd(dev, base, 0, 0,
4477 MLX4_QP_FLOW_STEERING_DETACH,
4478 MLX4_CMD_TIME_CLASS_A,
4479 MLX4_CMD_NATIVE);
4480
4481 spin_lock_irq(mlx4_tlock(dev));
4482 rb_erase(&fs_rule->com.node,
4483 &tracker->res_tree[RES_FS_RULE]);
4484 list_del(&fs_rule->com.list);
4485 spin_unlock_irq(mlx4_tlock(dev));
4486 kfree(fs_rule);
4487 state = 0;
4488 break;
4489
4490 default:
4491 state = 0;
4492 }
4493 }
4494 }
4495 spin_lock_irq(mlx4_tlock(dev));
4496 }
4497 spin_unlock_irq(mlx4_tlock(dev));
4498 }
4499
4500 static void rem_slave_eqs(struct mlx4_dev *dev, int slave)
4501 {
4502 struct mlx4_priv *priv = mlx4_priv(dev);
4503 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4504 struct list_head *eq_list =
4505 &tracker->slave_list[slave].res_list[RES_EQ];
4506 struct res_eq *eq;
4507 struct res_eq *tmp;
4508 int err;
4509 int state;
4510 LIST_HEAD(tlist);
4511 int eqn;
4512 struct mlx4_cmd_mailbox *mailbox;
4513
4514 err = move_all_busy(dev, slave, RES_EQ);
4515 if (err)
4516 mlx4_warn(dev, "rem_slave_eqs: Could not move all eqs to "
4517 "busy for slave %d\n", slave);
4518
4519 spin_lock_irq(mlx4_tlock(dev));
4520 list_for_each_entry_safe(eq, tmp, eq_list, com.list) {
4521 spin_unlock_irq(mlx4_tlock(dev));
4522 if (eq->com.owner == slave) {
4523 eqn = eq->com.res_id;
4524 state = eq->com.from_state;
4525 while (state != 0) {
4526 switch (state) {
4527 case RES_EQ_RESERVED:
4528 spin_lock_irq(mlx4_tlock(dev));
4529 rb_erase(&eq->com.node,
4530 &tracker->res_tree[RES_EQ]);
4531 list_del(&eq->com.list);
4532 spin_unlock_irq(mlx4_tlock(dev));
4533 kfree(eq);
4534 state = 0;
4535 break;
4536
4537 case RES_EQ_HW:
4538 mailbox = mlx4_alloc_cmd_mailbox(dev);
4539 if (IS_ERR(mailbox)) {
4540 cond_resched();
4541 continue;
4542 }
4543 err = mlx4_cmd_box(dev, slave, 0,
4544 eqn & 0xff, 0,
4545 MLX4_CMD_HW2SW_EQ,
4546 MLX4_CMD_TIME_CLASS_A,
4547 MLX4_CMD_NATIVE);
4548 if (err)
4549 mlx4_dbg(dev, "rem_slave_eqs: failed"
4550 " to move slave %d eqs %d to"
4551 " SW ownership\n", slave, eqn);
4552 mlx4_free_cmd_mailbox(dev, mailbox);
4553 atomic_dec(&eq->mtt->ref_count);
4554 state = RES_EQ_RESERVED;
4555 break;
4556
4557 default:
4558 state = 0;
4559 }
4560 }
4561 }
4562 spin_lock_irq(mlx4_tlock(dev));
4563 }
4564 spin_unlock_irq(mlx4_tlock(dev));
4565 }
4566
4567 static void rem_slave_counters(struct mlx4_dev *dev, int slave)
4568 {
4569 struct mlx4_priv *priv = mlx4_priv(dev);
4570 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4571 struct list_head *counter_list =
4572 &tracker->slave_list[slave].res_list[RES_COUNTER];
4573 struct res_counter *counter;
4574 struct res_counter *tmp;
4575 int err;
4576 int index;
4577
4578 err = move_all_busy(dev, slave, RES_COUNTER);
4579 if (err)
4580 mlx4_warn(dev, "rem_slave_counters: Could not move all counters to "
4581 "busy for slave %d\n", slave);
4582
4583 spin_lock_irq(mlx4_tlock(dev));
4584 list_for_each_entry_safe(counter, tmp, counter_list, com.list) {
4585 if (counter->com.owner == slave) {
4586 index = counter->com.res_id;
4587 rb_erase(&counter->com.node,
4588 &tracker->res_tree[RES_COUNTER]);
4589 list_del(&counter->com.list);
4590 kfree(counter);
4591 __mlx4_counter_free(dev, index);
4592 mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0);
4593 }
4594 }
4595 spin_unlock_irq(mlx4_tlock(dev));
4596 }
4597
4598 static void rem_slave_xrcdns(struct mlx4_dev *dev, int slave)
4599 {
4600 struct mlx4_priv *priv = mlx4_priv(dev);
4601 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4602 struct list_head *xrcdn_list =
4603 &tracker->slave_list[slave].res_list[RES_XRCD];
4604 struct res_xrcdn *xrcd;
4605 struct res_xrcdn *tmp;
4606 int err;
4607 int xrcdn;
4608
4609 err = move_all_busy(dev, slave, RES_XRCD);
4610 if (err)
4611 mlx4_warn(dev, "rem_slave_xrcdns: Could not move all xrcdns to "
4612 "busy for slave %d\n", slave);
4613
4614 spin_lock_irq(mlx4_tlock(dev));
4615 list_for_each_entry_safe(xrcd, tmp, xrcdn_list, com.list) {
4616 if (xrcd->com.owner == slave) {
4617 xrcdn = xrcd->com.res_id;
4618 rb_erase(&xrcd->com.node, &tracker->res_tree[RES_XRCD]);
4619 list_del(&xrcd->com.list);
4620 kfree(xrcd);
4621 __mlx4_xrcd_free(dev, xrcdn);
4622 }
4623 }
4624 spin_unlock_irq(mlx4_tlock(dev));
4625 }
4626
4627 void mlx4_delete_all_resources_for_slave(struct mlx4_dev *dev, int slave)
4628 {
4629 struct mlx4_priv *priv = mlx4_priv(dev);
4630
4631 mutex_lock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex);
4632 rem_slave_vlans(dev, slave);
4633 rem_slave_macs(dev, slave);
4634 rem_slave_fs_rule(dev, slave);
4635 rem_slave_qps(dev, slave);
4636 rem_slave_srqs(dev, slave);
4637 rem_slave_cqs(dev, slave);
4638 rem_slave_mrs(dev, slave);
4639 rem_slave_eqs(dev, slave);
4640 rem_slave_mtts(dev, slave);
4641 rem_slave_counters(dev, slave);
4642 rem_slave_xrcdns(dev, slave);
4643 mutex_unlock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex);
4644 }
4645
4646 void mlx4_vf_immed_vlan_work_handler(struct work_struct *_work)
4647 {
4648 struct mlx4_vf_immed_vlan_work *work =
4649 container_of(_work, struct mlx4_vf_immed_vlan_work, work);
4650 struct mlx4_cmd_mailbox *mailbox;
4651 struct mlx4_update_qp_context *upd_context;
4652 struct mlx4_dev *dev = &work->priv->dev;
4653 struct mlx4_resource_tracker *tracker =
4654 &work->priv->mfunc.master.res_tracker;
4655 struct list_head *qp_list =
4656 &tracker->slave_list[work->slave].res_list[RES_QP];
4657 struct res_qp *qp;
4658 struct res_qp *tmp;
4659 u64 qp_path_mask_vlan_ctrl =
4660 ((1ULL << MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_UNTAGGED) |
4661 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_1P) |
4662 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_TAGGED) |
4663 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_UNTAGGED) |
4664 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_1P) |
4665 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_TAGGED));
4666
4667 u64 qp_path_mask = ((1ULL << MLX4_UPD_QP_PATH_MASK_VLAN_INDEX) |
4668 (1ULL << MLX4_UPD_QP_PATH_MASK_FVL) |
4669 (1ULL << MLX4_UPD_QP_PATH_MASK_CV) |
4670 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_HIDE_CQE_VLAN) |
4671 (1ULL << MLX4_UPD_QP_PATH_MASK_FEUP) |
4672 (1ULL << MLX4_UPD_QP_PATH_MASK_FVL_RX) |
4673 (1ULL << MLX4_UPD_QP_PATH_MASK_SCHED_QUEUE));
4674
4675 int err;
4676 int port, errors = 0;
4677 u8 vlan_control;
4678
4679 if (mlx4_is_slave(dev)) {
4680 mlx4_warn(dev, "Trying to update-qp in slave %d\n",
4681 work->slave);
4682 goto out;
4683 }
4684
4685 mailbox = mlx4_alloc_cmd_mailbox(dev);
4686 if (IS_ERR(mailbox))
4687 goto out;
4688 if (work->flags & MLX4_VF_IMMED_VLAN_FLAG_LINK_DISABLE) /* block all */
4689 vlan_control = MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
4690 MLX4_VLAN_CTRL_ETH_TX_BLOCK_PRIO_TAGGED |
4691 MLX4_VLAN_CTRL_ETH_TX_BLOCK_UNTAGGED |
4692 MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED |
4693 MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED |
4694 MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED;
4695 else if (!work->vlan_id)
4696 vlan_control = MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
4697 MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED;
4698 else
4699 vlan_control = MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
4700 MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED |
4701 MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED;
4702
4703 upd_context = mailbox->buf;
4704 upd_context->qp_mask = cpu_to_be64(MLX4_UPD_QP_MASK_VSD);
4705
4706 spin_lock_irq(mlx4_tlock(dev));
4707 list_for_each_entry_safe(qp, tmp, qp_list, com.list) {
4708 spin_unlock_irq(mlx4_tlock(dev));
4709 if (qp->com.owner == work->slave) {
4710 if (qp->com.from_state != RES_QP_HW ||
4711 !qp->sched_queue || /* no INIT2RTR trans yet */
4712 mlx4_is_qp_reserved(dev, qp->local_qpn) ||
4713 qp->qpc_flags & (1 << MLX4_RSS_QPC_FLAG_OFFSET)) {
4714 spin_lock_irq(mlx4_tlock(dev));
4715 continue;
4716 }
4717 port = (qp->sched_queue >> 6 & 1) + 1;
4718 if (port != work->port) {
4719 spin_lock_irq(mlx4_tlock(dev));
4720 continue;
4721 }
4722 if (MLX4_QP_ST_RC == ((qp->qpc_flags >> 16) & 0xff))
4723 upd_context->primary_addr_path_mask = cpu_to_be64(qp_path_mask);
4724 else
4725 upd_context->primary_addr_path_mask =
4726 cpu_to_be64(qp_path_mask | qp_path_mask_vlan_ctrl);
4727 if (work->vlan_id == MLX4_VGT) {
4728 upd_context->qp_context.param3 = qp->param3;
4729 upd_context->qp_context.pri_path.vlan_control = qp->vlan_control;
4730 upd_context->qp_context.pri_path.fvl_rx = qp->fvl_rx;
4731 upd_context->qp_context.pri_path.vlan_index = qp->vlan_index;
4732 upd_context->qp_context.pri_path.fl = qp->pri_path_fl;
4733 upd_context->qp_context.pri_path.feup = qp->feup;
4734 upd_context->qp_context.pri_path.sched_queue =
4735 qp->sched_queue;
4736 } else {
4737 upd_context->qp_context.param3 = qp->param3 & ~cpu_to_be32(MLX4_STRIP_VLAN);
4738 upd_context->qp_context.pri_path.vlan_control = vlan_control;
4739 upd_context->qp_context.pri_path.vlan_index = work->vlan_ix;
4740 upd_context->qp_context.pri_path.fvl_rx =
4741 qp->fvl_rx | MLX4_FVL_RX_FORCE_ETH_VLAN;
4742 upd_context->qp_context.pri_path.fl =
4743 qp->pri_path_fl | MLX4_FL_CV | MLX4_FL_ETH_HIDE_CQE_VLAN;
4744 upd_context->qp_context.pri_path.feup =
4745 qp->feup | MLX4_FEUP_FORCE_ETH_UP | MLX4_FVL_FORCE_ETH_VLAN;
4746 upd_context->qp_context.pri_path.sched_queue =
4747 qp->sched_queue & 0xC7;
4748 upd_context->qp_context.pri_path.sched_queue |=
4749 ((work->qos & 0x7) << 3);
4750 }
4751
4752 err = mlx4_cmd(dev, mailbox->dma,
4753 qp->local_qpn & 0xffffff,
4754 0, MLX4_CMD_UPDATE_QP,
4755 MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE);
4756 if (err) {
4757 mlx4_info(dev, "UPDATE_QP failed for slave %d, "
4758 "port %d, qpn %d (%d)\n",
4759 work->slave, port, qp->local_qpn,
4760 err);
4761 errors++;
4762 }
4763 }
4764 spin_lock_irq(mlx4_tlock(dev));
4765 }
4766 spin_unlock_irq(mlx4_tlock(dev));
4767 mlx4_free_cmd_mailbox(dev, mailbox);
4768
4769 if (errors)
4770 mlx4_err(dev, "%d UPDATE_QP failures for slave %d, port %d\n",
4771 errors, work->slave, work->port);
4772
4773 /* unregister previous vlan_id if needed and we had no errors
4774 * while updating the QPs
4775 */
4776 if (work->flags & MLX4_VF_IMMED_VLAN_FLAG_VLAN && !errors &&
4777 NO_INDX != work->orig_vlan_ix)
4778 __mlx4_unregister_vlan(&work->priv->dev, work->port,
4779 work->orig_vlan_id);
4780 out:
4781 kfree(work);
4782 return;
4783 }
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