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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
52struct mac_res {
53 struct list_head list;
54 u64 mac;
55 int ref_count;
56 u8 smac_index;
57 u8 port;
58};
59
60struct vlan_res {
61 struct list_head list;
62 u16 vlan;
63 int ref_count;
64 int vlan_index;
65 u8 port;
66};
67
68struct 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
79enum {
80 RES_ANY_BUSY = 1
81};
82
83struct 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
91enum res_qp_states {
92 RES_QP_BUSY = RES_ANY_BUSY,
93
94
95 RES_QP_RESERVED,
96
97
98 RES_QP_MAPPED,
99
100
101 RES_QP_HW
102};
103
104struct 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
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
125enum res_mtt_states {
126 RES_MTT_BUSY = RES_ANY_BUSY,
127 RES_MTT_ALLOCATED,
128};
129
130static 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
139struct res_mtt {
140 struct res_common com;
141 int order;
142 atomic_t ref_count;
143};
144
145enum res_mpt_states {
146 RES_MPT_BUSY = RES_ANY_BUSY,
147 RES_MPT_RESERVED,
148 RES_MPT_MAPPED,
149 RES_MPT_HW,
150};
151
152struct res_mpt {
153 struct res_common com;
154 struct res_mtt *mtt;
155 int key;
156};
157
158enum res_eq_states {
159 RES_EQ_BUSY = RES_ANY_BUSY,
160 RES_EQ_RESERVED,
161 RES_EQ_HW,
162};
163
164struct res_eq {
165 struct res_common com;
166 struct res_mtt *mtt;
167};
168
169enum res_cq_states {
170 RES_CQ_BUSY = RES_ANY_BUSY,
171 RES_CQ_ALLOCATED,
172 RES_CQ_HW,
173};
174
175struct res_cq {
176 struct res_common com;
177 struct res_mtt *mtt;
178 atomic_t ref_count;
179};
180
181enum res_srq_states {
182 RES_SRQ_BUSY = RES_ANY_BUSY,
183 RES_SRQ_ALLOCATED,
184 RES_SRQ_HW,
185};
186
187struct res_srq {
188 struct res_common com;
189 struct res_mtt *mtt;
190 struct res_cq *cq;
191 atomic_t ref_count;
192};
193
194enum res_counter_states {
195 RES_COUNTER_BUSY = RES_ANY_BUSY,
196 RES_COUNTER_ALLOCATED,
197};
198
199struct res_counter {
200 struct res_common com;
201 int port;
202};
203
204enum res_xrcdn_states {
205 RES_XRCD_BUSY = RES_ANY_BUSY,
206 RES_XRCD_ALLOCATED,
207};
208
209struct res_xrcdn {
210 struct res_common com;
211 int port;
212};
213
214enum res_fs_rule_states {
215 RES_FS_RULE_BUSY = RES_ANY_BUSY,
216 RES_FS_RULE_ALLOCATED,
217};
218
219struct res_fs_rule {
220 struct res_common com;
221 int qpn;
222};
223
224static void *res_tracker_lookup(struct rb_root *root, u64 res_id)
225{
226 struct rb_node *node = root->rb_node;
227
228 while (node) {
229 struct res_common *res = container_of(node, struct res_common,
230 node);
231
232 if (res_id < res->res_id)
233 node = node->rb_left;
234 else if (res_id > res->res_id)
235 node = node->rb_right;
236 else
237 return res;
238 }
239 return NULL;
240}
241
242static int res_tracker_insert(struct rb_root *root, struct res_common *res)
243{
244 struct rb_node **new = &(root->rb_node), *parent = NULL;
245
246
247 while (*new) {
248 struct res_common *this = container_of(*new, struct res_common,
249 node);
250
251 parent = *new;
252 if (res->res_id < this->res_id)
253 new = &((*new)->rb_left);
254 else if (res->res_id > this->res_id)
255 new = &((*new)->rb_right);
256 else
257 return -EEXIST;
258 }
259
260
261 rb_link_node(&res->node, parent, new);
262 rb_insert_color(&res->node, root);
263
264 return 0;
265}
266
267enum qp_transition {
268 QP_TRANS_INIT2RTR,
269 QP_TRANS_RTR2RTS,
270 QP_TRANS_RTS2RTS,
271 QP_TRANS_SQERR2RTS,
272 QP_TRANS_SQD2SQD,
273 QP_TRANS_SQD2RTS
274};
275
276
277static const char *resource_str(enum mlx4_resource rt)
278{
279 switch (rt) {
280 case RES_QP: return "RES_QP";
281 case RES_CQ: return "RES_CQ";
282 case RES_SRQ: return "RES_SRQ";
283 case RES_MPT: return "RES_MPT";
284 case RES_MTT: return "RES_MTT";
285 case RES_MAC: return "RES_MAC";
286 case RES_VLAN: return "RES_VLAN";
287 case RES_EQ: return "RES_EQ";
288 case RES_COUNTER: return "RES_COUNTER";
289 case RES_FS_RULE: return "RES_FS_RULE";
290 case RES_XRCD: return "RES_XRCD";
291 default: return "Unknown resource type !!!";
292 };
293}
294
295static void rem_slave_vlans(struct mlx4_dev *dev, int slave);
296static inline int mlx4_grant_resource(struct mlx4_dev *dev, int slave,
297 enum mlx4_resource res_type, int count,
298 int port)
299{
300 struct mlx4_priv *priv = mlx4_priv(dev);
301 struct resource_allocator *res_alloc =
302 &priv->mfunc.master.res_tracker.res_alloc[res_type];
303 int err = -EINVAL;
304 int allocated, free, reserved, guaranteed, from_free;
305 int from_rsvd;
306
307 if (slave > dev->persist->num_vfs)
308 return -EINVAL;
309
310 spin_lock(&res_alloc->alloc_lock);
311 allocated = (port > 0) ?
312 res_alloc->allocated[(port - 1) *
313 (dev->persist->num_vfs + 1) + slave] :
314 res_alloc->allocated[slave];
315 free = (port > 0) ? res_alloc->res_port_free[port - 1] :
316 res_alloc->res_free;
317 reserved = (port > 0) ? res_alloc->res_port_rsvd[port - 1] :
318 res_alloc->res_reserved;
319 guaranteed = res_alloc->guaranteed[slave];
320
321 if (allocated + count > res_alloc->quota[slave]) {
322 mlx4_warn(dev, "VF %d port %d res %s: quota exceeded, count %d alloc %d quota %d\n",
323 slave, port, resource_str(res_type), count,
324 allocated, res_alloc->quota[slave]);
325 goto out;
326 }
327
328 if (allocated + count <= guaranteed) {
329 err = 0;
330 from_rsvd = count;
331 } else {
332
333 if (guaranteed - allocated > 0)
334 from_free = count - (guaranteed - allocated);
335 else
336 from_free = count;
337
338 from_rsvd = count - from_free;
339
340 if (free - from_free >= reserved)
341 err = 0;
342 else
343 mlx4_warn(dev, "VF %d port %d res %s: free pool empty, free %d from_free %d rsvd %d\n",
344 slave, port, resource_str(res_type), free,
345 from_free, reserved);
346 }
347
348 if (!err) {
349
350 if (port > 0) {
351 res_alloc->allocated[(port - 1) *
352 (dev->persist->num_vfs + 1) + slave] += count;
353 res_alloc->res_port_free[port - 1] -= count;
354 res_alloc->res_port_rsvd[port - 1] -= from_rsvd;
355 } else {
356 res_alloc->allocated[slave] += count;
357 res_alloc->res_free -= count;
358 res_alloc->res_reserved -= from_rsvd;
359 }
360 }
361
362out:
363 spin_unlock(&res_alloc->alloc_lock);
364 return err;
365}
366
367static inline void mlx4_release_resource(struct mlx4_dev *dev, int slave,
368 enum mlx4_resource res_type, int count,
369 int port)
370{
371 struct mlx4_priv *priv = mlx4_priv(dev);
372 struct resource_allocator *res_alloc =
373 &priv->mfunc.master.res_tracker.res_alloc[res_type];
374 int allocated, guaranteed, from_rsvd;
375
376 if (slave > dev->persist->num_vfs)
377 return;
378
379 spin_lock(&res_alloc->alloc_lock);
380
381 allocated = (port > 0) ?
382 res_alloc->allocated[(port - 1) *
383 (dev->persist->num_vfs + 1) + slave] :
384 res_alloc->allocated[slave];
385 guaranteed = res_alloc->guaranteed[slave];
386
387 if (allocated - count >= guaranteed) {
388 from_rsvd = 0;
389 } else {
390
391 if (allocated - guaranteed > 0)
392 from_rsvd = count - (allocated - guaranteed);
393 else
394 from_rsvd = count;
395 }
396
397 if (port > 0) {
398 res_alloc->allocated[(port - 1) *
399 (dev->persist->num_vfs + 1) + slave] -= count;
400 res_alloc->res_port_free[port - 1] += count;
401 res_alloc->res_port_rsvd[port - 1] += from_rsvd;
402 } else {
403 res_alloc->allocated[slave] -= count;
404 res_alloc->res_free += count;
405 res_alloc->res_reserved += from_rsvd;
406 }
407
408 spin_unlock(&res_alloc->alloc_lock);
409 return;
410}
411
412static inline void initialize_res_quotas(struct mlx4_dev *dev,
413 struct resource_allocator *res_alloc,
414 enum mlx4_resource res_type,
415 int vf, int num_instances)
416{
417 res_alloc->guaranteed[vf] = num_instances /
418 (2 * (dev->persist->num_vfs + 1));
419 res_alloc->quota[vf] = (num_instances / 2) + res_alloc->guaranteed[vf];
420 if (vf == mlx4_master_func_num(dev)) {
421 res_alloc->res_free = num_instances;
422 if (res_type == RES_MTT) {
423
424 res_alloc->res_free += dev->caps.reserved_mtts;
425 res_alloc->guaranteed[vf] += dev->caps.reserved_mtts;
426 res_alloc->quota[vf] += dev->caps.reserved_mtts;
427 }
428 }
429}
430
431void mlx4_init_quotas(struct mlx4_dev *dev)
432{
433 struct mlx4_priv *priv = mlx4_priv(dev);
434 int pf;
435
436
437 if (mlx4_is_slave(dev))
438 return;
439
440 if (!mlx4_is_mfunc(dev)) {
441 dev->quotas.qp = dev->caps.num_qps - dev->caps.reserved_qps -
442 mlx4_num_reserved_sqps(dev);
443 dev->quotas.cq = dev->caps.num_cqs - dev->caps.reserved_cqs;
444 dev->quotas.srq = dev->caps.num_srqs - dev->caps.reserved_srqs;
445 dev->quotas.mtt = dev->caps.num_mtts - dev->caps.reserved_mtts;
446 dev->quotas.mpt = dev->caps.num_mpts - dev->caps.reserved_mrws;
447 return;
448 }
449
450 pf = mlx4_master_func_num(dev);
451 dev->quotas.qp =
452 priv->mfunc.master.res_tracker.res_alloc[RES_QP].quota[pf];
453 dev->quotas.cq =
454 priv->mfunc.master.res_tracker.res_alloc[RES_CQ].quota[pf];
455 dev->quotas.srq =
456 priv->mfunc.master.res_tracker.res_alloc[RES_SRQ].quota[pf];
457 dev->quotas.mtt =
458 priv->mfunc.master.res_tracker.res_alloc[RES_MTT].quota[pf];
459 dev->quotas.mpt =
460 priv->mfunc.master.res_tracker.res_alloc[RES_MPT].quota[pf];
461}
462int mlx4_init_resource_tracker(struct mlx4_dev *dev)
463{
464 struct mlx4_priv *priv = mlx4_priv(dev);
465 int i, j;
466 int t;
467
468 priv->mfunc.master.res_tracker.slave_list =
469 kzalloc(dev->num_slaves * sizeof(struct slave_list),
470 GFP_KERNEL);
471 if (!priv->mfunc.master.res_tracker.slave_list)
472 return -ENOMEM;
473
474 for (i = 0 ; i < dev->num_slaves; i++) {
475 for (t = 0; t < MLX4_NUM_OF_RESOURCE_TYPE; ++t)
476 INIT_LIST_HEAD(&priv->mfunc.master.res_tracker.
477 slave_list[i].res_list[t]);
478 mutex_init(&priv->mfunc.master.res_tracker.slave_list[i].mutex);
479 }
480
481 mlx4_dbg(dev, "Started init_resource_tracker: %ld slaves\n",
482 dev->num_slaves);
483 for (i = 0 ; i < MLX4_NUM_OF_RESOURCE_TYPE; i++)
484 priv->mfunc.master.res_tracker.res_tree[i] = RB_ROOT;
485
486 for (i = 0; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) {
487 struct resource_allocator *res_alloc =
488 &priv->mfunc.master.res_tracker.res_alloc[i];
489 res_alloc->quota = kmalloc((dev->persist->num_vfs + 1) *
490 sizeof(int), GFP_KERNEL);
491 res_alloc->guaranteed = kmalloc((dev->persist->num_vfs + 1) *
492 sizeof(int), GFP_KERNEL);
493 if (i == RES_MAC || i == RES_VLAN)
494 res_alloc->allocated = kzalloc(MLX4_MAX_PORTS *
495 (dev->persist->num_vfs
496 + 1) *
497 sizeof(int), GFP_KERNEL);
498 else
499 res_alloc->allocated = kzalloc((dev->persist->
500 num_vfs + 1) *
501 sizeof(int), GFP_KERNEL);
502
503 if (!res_alloc->quota || !res_alloc->guaranteed ||
504 !res_alloc->allocated)
505 goto no_mem_err;
506
507 spin_lock_init(&res_alloc->alloc_lock);
508 for (t = 0; t < dev->persist->num_vfs + 1; t++) {
509 struct mlx4_active_ports actv_ports =
510 mlx4_get_active_ports(dev, t);
511 switch (i) {
512 case RES_QP:
513 initialize_res_quotas(dev, res_alloc, RES_QP,
514 t, dev->caps.num_qps -
515 dev->caps.reserved_qps -
516 mlx4_num_reserved_sqps(dev));
517 break;
518 case RES_CQ:
519 initialize_res_quotas(dev, res_alloc, RES_CQ,
520 t, dev->caps.num_cqs -
521 dev->caps.reserved_cqs);
522 break;
523 case RES_SRQ:
524 initialize_res_quotas(dev, res_alloc, RES_SRQ,
525 t, dev->caps.num_srqs -
526 dev->caps.reserved_srqs);
527 break;
528 case RES_MPT:
529 initialize_res_quotas(dev, res_alloc, RES_MPT,
530 t, dev->caps.num_mpts -
531 dev->caps.reserved_mrws);
532 break;
533 case RES_MTT:
534 initialize_res_quotas(dev, res_alloc, RES_MTT,
535 t, dev->caps.num_mtts -
536 dev->caps.reserved_mtts);
537 break;
538 case RES_MAC:
539 if (t == mlx4_master_func_num(dev)) {
540 int max_vfs_pport = 0;
541
542
543 for (j = 0; j < dev->caps.num_ports;
544 j++) {
545 struct mlx4_slaves_pport slaves_pport =
546 mlx4_phys_to_slaves_pport(dev, j + 1);
547 unsigned current_slaves =
548 bitmap_weight(slaves_pport.slaves,
549 dev->caps.num_ports) - 1;
550 if (max_vfs_pport < current_slaves)
551 max_vfs_pport =
552 current_slaves;
553 }
554 res_alloc->quota[t] =
555 MLX4_MAX_MAC_NUM -
556 2 * max_vfs_pport;
557 res_alloc->guaranteed[t] = 2;
558 for (j = 0; j < MLX4_MAX_PORTS; j++)
559 res_alloc->res_port_free[j] =
560 MLX4_MAX_MAC_NUM;
561 } else {
562 res_alloc->quota[t] = MLX4_MAX_MAC_NUM;
563 res_alloc->guaranteed[t] = 2;
564 }
565 break;
566 case RES_VLAN:
567 if (t == mlx4_master_func_num(dev)) {
568 res_alloc->quota[t] = MLX4_MAX_VLAN_NUM;
569 res_alloc->guaranteed[t] = MLX4_MAX_VLAN_NUM / 2;
570 for (j = 0; j < MLX4_MAX_PORTS; j++)
571 res_alloc->res_port_free[j] =
572 res_alloc->quota[t];
573 } else {
574 res_alloc->quota[t] = MLX4_MAX_VLAN_NUM / 2;
575 res_alloc->guaranteed[t] = 0;
576 }
577 break;
578 case RES_COUNTER:
579 res_alloc->quota[t] = dev->caps.max_counters;
580 res_alloc->guaranteed[t] = 0;
581 if (t == mlx4_master_func_num(dev))
582 res_alloc->res_free = res_alloc->quota[t];
583 break;
584 default:
585 break;
586 }
587 if (i == RES_MAC || i == RES_VLAN) {
588 for (j = 0; j < dev->caps.num_ports; j++)
589 if (test_bit(j, actv_ports.ports))
590 res_alloc->res_port_rsvd[j] +=
591 res_alloc->guaranteed[t];
592 } else {
593 res_alloc->res_reserved += res_alloc->guaranteed[t];
594 }
595 }
596 }
597 spin_lock_init(&priv->mfunc.master.res_tracker.lock);
598 return 0;
599
600no_mem_err:
601 for (i = 0; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) {
602 kfree(priv->mfunc.master.res_tracker.res_alloc[i].allocated);
603 priv->mfunc.master.res_tracker.res_alloc[i].allocated = NULL;
604 kfree(priv->mfunc.master.res_tracker.res_alloc[i].guaranteed);
605 priv->mfunc.master.res_tracker.res_alloc[i].guaranteed = NULL;
606 kfree(priv->mfunc.master.res_tracker.res_alloc[i].quota);
607 priv->mfunc.master.res_tracker.res_alloc[i].quota = NULL;
608 }
609 return -ENOMEM;
610}
611
612void mlx4_free_resource_tracker(struct mlx4_dev *dev,
613 enum mlx4_res_tracker_free_type type)
614{
615 struct mlx4_priv *priv = mlx4_priv(dev);
616 int i;
617
618 if (priv->mfunc.master.res_tracker.slave_list) {
619 if (type != RES_TR_FREE_STRUCTS_ONLY) {
620 for (i = 0; i < dev->num_slaves; i++) {
621 if (type == RES_TR_FREE_ALL ||
622 dev->caps.function != i)
623 mlx4_delete_all_resources_for_slave(dev, i);
624 }
625
626 i = dev->caps.function;
627 mlx4_reset_roce_gids(dev, i);
628 mutex_lock(&priv->mfunc.master.res_tracker.slave_list[i].mutex);
629 rem_slave_vlans(dev, i);
630 mutex_unlock(&priv->mfunc.master.res_tracker.slave_list[i].mutex);
631 }
632
633 if (type != RES_TR_FREE_SLAVES_ONLY) {
634 for (i = 0; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) {
635 kfree(priv->mfunc.master.res_tracker.res_alloc[i].allocated);
636 priv->mfunc.master.res_tracker.res_alloc[i].allocated = NULL;
637 kfree(priv->mfunc.master.res_tracker.res_alloc[i].guaranteed);
638 priv->mfunc.master.res_tracker.res_alloc[i].guaranteed = NULL;
639 kfree(priv->mfunc.master.res_tracker.res_alloc[i].quota);
640 priv->mfunc.master.res_tracker.res_alloc[i].quota = NULL;
641 }
642 kfree(priv->mfunc.master.res_tracker.slave_list);
643 priv->mfunc.master.res_tracker.slave_list = NULL;
644 }
645 }
646}
647
648static void update_pkey_index(struct mlx4_dev *dev, int slave,
649 struct mlx4_cmd_mailbox *inbox)
650{
651 u8 sched = *(u8 *)(inbox->buf + 64);
652 u8 orig_index = *(u8 *)(inbox->buf + 35);
653 u8 new_index;
654 struct mlx4_priv *priv = mlx4_priv(dev);
655 int port;
656
657 port = (sched >> 6 & 1) + 1;
658
659 new_index = priv->virt2phys_pkey[slave][port - 1][orig_index];
660 *(u8 *)(inbox->buf + 35) = new_index;
661}
662
663static void update_gid(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *inbox,
664 u8 slave)
665{
666 struct mlx4_qp_context *qp_ctx = inbox->buf + 8;
667 enum mlx4_qp_optpar optpar = be32_to_cpu(*(__be32 *) inbox->buf);
668 u32 ts = (be32_to_cpu(qp_ctx->flags) >> 16) & 0xff;
669 int port;
670
671 if (MLX4_QP_ST_UD == ts) {
672 port = (qp_ctx->pri_path.sched_queue >> 6 & 1) + 1;
673 if (mlx4_is_eth(dev, port))
674 qp_ctx->pri_path.mgid_index =
675 mlx4_get_base_gid_ix(dev, slave, port) | 0x80;
676 else
677 qp_ctx->pri_path.mgid_index = slave | 0x80;
678
679 } else if (MLX4_QP_ST_RC == ts || MLX4_QP_ST_XRC == ts || MLX4_QP_ST_UC == ts) {
680 if (optpar & MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH) {
681 port = (qp_ctx->pri_path.sched_queue >> 6 & 1) + 1;
682 if (mlx4_is_eth(dev, port)) {
683 qp_ctx->pri_path.mgid_index +=
684 mlx4_get_base_gid_ix(dev, slave, port);
685 qp_ctx->pri_path.mgid_index &= 0x7f;
686 } else {
687 qp_ctx->pri_path.mgid_index = slave & 0x7F;
688 }
689 }
690 if (optpar & MLX4_QP_OPTPAR_ALT_ADDR_PATH) {
691 port = (qp_ctx->alt_path.sched_queue >> 6 & 1) + 1;
692 if (mlx4_is_eth(dev, port)) {
693 qp_ctx->alt_path.mgid_index +=
694 mlx4_get_base_gid_ix(dev, slave, port);
695 qp_ctx->alt_path.mgid_index &= 0x7f;
696 } else {
697 qp_ctx->alt_path.mgid_index = slave & 0x7F;
698 }
699 }
700 }
701}
702
703static int update_vport_qp_param(struct mlx4_dev *dev,
704 struct mlx4_cmd_mailbox *inbox,
705 u8 slave, u32 qpn)
706{
707 struct mlx4_qp_context *qpc = inbox->buf + 8;
708 struct mlx4_vport_oper_state *vp_oper;
709 struct mlx4_priv *priv;
710 u32 qp_type;
711 int port, err = 0;
712
713 port = (qpc->pri_path.sched_queue & 0x40) ? 2 : 1;
714 priv = mlx4_priv(dev);
715 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
716 qp_type = (be32_to_cpu(qpc->flags) >> 16) & 0xff;
717
718 if (MLX4_VGT != vp_oper->state.default_vlan) {
719
720
721
722 if (mlx4_is_qp_reserved(dev, qpn))
723 return 0;
724
725
726 if (qp_type == MLX4_QP_ST_UD ||
727 (qp_type == MLX4_QP_ST_MLX && mlx4_is_eth(dev, port))) {
728 if (dev->caps.bmme_flags & MLX4_BMME_FLAG_VSD_INIT2RTR) {
729 *(__be32 *)inbox->buf =
730 cpu_to_be32(be32_to_cpu(*(__be32 *)inbox->buf) |
731 MLX4_QP_OPTPAR_VLAN_STRIPPING);
732 qpc->param3 &= ~cpu_to_be32(MLX4_STRIP_VLAN);
733 } else {
734 struct mlx4_update_qp_params params = {.flags = 0};
735
736 err = mlx4_update_qp(dev, qpn, MLX4_UPDATE_QP_VSD, ¶ms);
737 if (err)
738 goto out;
739 }
740 }
741
742 if (vp_oper->state.link_state == IFLA_VF_LINK_STATE_DISABLE &&
743 dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_UPDATE_QP) {
744 qpc->pri_path.vlan_control =
745 MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
746 MLX4_VLAN_CTRL_ETH_TX_BLOCK_PRIO_TAGGED |
747 MLX4_VLAN_CTRL_ETH_TX_BLOCK_UNTAGGED |
748 MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED |
749 MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED |
750 MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED;
751 } else if (0 != vp_oper->state.default_vlan) {
752 qpc->pri_path.vlan_control =
753 MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
754 MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED |
755 MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED;
756 } else {
757 qpc->pri_path.vlan_control =
758 MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
759 MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED;
760 }
761
762 qpc->pri_path.fvl_rx |= MLX4_FVL_RX_FORCE_ETH_VLAN;
763 qpc->pri_path.vlan_index = vp_oper->vlan_idx;
764 qpc->pri_path.fl |= MLX4_FL_CV | MLX4_FL_ETH_HIDE_CQE_VLAN;
765 qpc->pri_path.feup |= MLX4_FEUP_FORCE_ETH_UP | MLX4_FVL_FORCE_ETH_VLAN;
766 qpc->pri_path.sched_queue &= 0xC7;
767 qpc->pri_path.sched_queue |= (vp_oper->state.default_qos) << 3;
768 qpc->qos_vport = vp_oper->state.qos_vport;
769 }
770 if (vp_oper->state.spoofchk) {
771 qpc->pri_path.feup |= MLX4_FSM_FORCE_ETH_SRC_MAC;
772 qpc->pri_path.grh_mylmc = (0x80 & qpc->pri_path.grh_mylmc) + vp_oper->mac_idx;
773 }
774out:
775 return err;
776}
777
778static int mpt_mask(struct mlx4_dev *dev)
779{
780 return dev->caps.num_mpts - 1;
781}
782
783static void *find_res(struct mlx4_dev *dev, u64 res_id,
784 enum mlx4_resource type)
785{
786 struct mlx4_priv *priv = mlx4_priv(dev);
787
788 return res_tracker_lookup(&priv->mfunc.master.res_tracker.res_tree[type],
789 res_id);
790}
791
792static int get_res(struct mlx4_dev *dev, int slave, u64 res_id,
793 enum mlx4_resource type,
794 void *res)
795{
796 struct res_common *r;
797 int err = 0;
798
799 spin_lock_irq(mlx4_tlock(dev));
800 r = find_res(dev, res_id, type);
801 if (!r) {
802 err = -ENONET;
803 goto exit;
804 }
805
806 if (r->state == RES_ANY_BUSY) {
807 err = -EBUSY;
808 goto exit;
809 }
810
811 if (r->owner != slave) {
812 err = -EPERM;
813 goto exit;
814 }
815
816 r->from_state = r->state;
817 r->state = RES_ANY_BUSY;
818
819 if (res)
820 *((struct res_common **)res) = r;
821
822exit:
823 spin_unlock_irq(mlx4_tlock(dev));
824 return err;
825}
826
827int mlx4_get_slave_from_resource_id(struct mlx4_dev *dev,
828 enum mlx4_resource type,
829 u64 res_id, int *slave)
830{
831
832 struct res_common *r;
833 int err = -ENOENT;
834 int id = res_id;
835
836 if (type == RES_QP)
837 id &= 0x7fffff;
838 spin_lock(mlx4_tlock(dev));
839
840 r = find_res(dev, id, type);
841 if (r) {
842 *slave = r->owner;
843 err = 0;
844 }
845 spin_unlock(mlx4_tlock(dev));
846
847 return err;
848}
849
850static void put_res(struct mlx4_dev *dev, int slave, u64 res_id,
851 enum mlx4_resource type)
852{
853 struct res_common *r;
854
855 spin_lock_irq(mlx4_tlock(dev));
856 r = find_res(dev, res_id, type);
857 if (r)
858 r->state = r->from_state;
859 spin_unlock_irq(mlx4_tlock(dev));
860}
861
862static struct res_common *alloc_qp_tr(int id)
863{
864 struct res_qp *ret;
865
866 ret = kzalloc(sizeof *ret, GFP_KERNEL);
867 if (!ret)
868 return NULL;
869
870 ret->com.res_id = id;
871 ret->com.state = RES_QP_RESERVED;
872 ret->local_qpn = id;
873 INIT_LIST_HEAD(&ret->mcg_list);
874 spin_lock_init(&ret->mcg_spl);
875 atomic_set(&ret->ref_count, 0);
876
877 return &ret->com;
878}
879
880static struct res_common *alloc_mtt_tr(int id, int order)
881{
882 struct res_mtt *ret;
883
884 ret = kzalloc(sizeof *ret, GFP_KERNEL);
885 if (!ret)
886 return NULL;
887
888 ret->com.res_id = id;
889 ret->order = order;
890 ret->com.state = RES_MTT_ALLOCATED;
891 atomic_set(&ret->ref_count, 0);
892
893 return &ret->com;
894}
895
896static struct res_common *alloc_mpt_tr(int id, int key)
897{
898 struct res_mpt *ret;
899
900 ret = kzalloc(sizeof *ret, GFP_KERNEL);
901 if (!ret)
902 return NULL;
903
904 ret->com.res_id = id;
905 ret->com.state = RES_MPT_RESERVED;
906 ret->key = key;
907
908 return &ret->com;
909}
910
911static struct res_common *alloc_eq_tr(int id)
912{
913 struct res_eq *ret;
914
915 ret = kzalloc(sizeof *ret, GFP_KERNEL);
916 if (!ret)
917 return NULL;
918
919 ret->com.res_id = id;
920 ret->com.state = RES_EQ_RESERVED;
921
922 return &ret->com;
923}
924
925static struct res_common *alloc_cq_tr(int id)
926{
927 struct res_cq *ret;
928
929 ret = kzalloc(sizeof *ret, GFP_KERNEL);
930 if (!ret)
931 return NULL;
932
933 ret->com.res_id = id;
934 ret->com.state = RES_CQ_ALLOCATED;
935 atomic_set(&ret->ref_count, 0);
936
937 return &ret->com;
938}
939
940static struct res_common *alloc_srq_tr(int id)
941{
942 struct res_srq *ret;
943
944 ret = kzalloc(sizeof *ret, GFP_KERNEL);
945 if (!ret)
946 return NULL;
947
948 ret->com.res_id = id;
949 ret->com.state = RES_SRQ_ALLOCATED;
950 atomic_set(&ret->ref_count, 0);
951
952 return &ret->com;
953}
954
955static struct res_common *alloc_counter_tr(int id)
956{
957 struct res_counter *ret;
958
959 ret = kzalloc(sizeof *ret, GFP_KERNEL);
960 if (!ret)
961 return NULL;
962
963 ret->com.res_id = id;
964 ret->com.state = RES_COUNTER_ALLOCATED;
965
966 return &ret->com;
967}
968
969static struct res_common *alloc_xrcdn_tr(int id)
970{
971 struct res_xrcdn *ret;
972
973 ret = kzalloc(sizeof *ret, GFP_KERNEL);
974 if (!ret)
975 return NULL;
976
977 ret->com.res_id = id;
978 ret->com.state = RES_XRCD_ALLOCATED;
979
980 return &ret->com;
981}
982
983static struct res_common *alloc_fs_rule_tr(u64 id, int qpn)
984{
985 struct res_fs_rule *ret;
986
987 ret = kzalloc(sizeof *ret, GFP_KERNEL);
988 if (!ret)
989 return NULL;
990
991 ret->com.res_id = id;
992 ret->com.state = RES_FS_RULE_ALLOCATED;
993 ret->qpn = qpn;
994 return &ret->com;
995}
996
997static struct res_common *alloc_tr(u64 id, enum mlx4_resource type, int slave,
998 int extra)
999{
1000 struct res_common *ret;
1001
1002 switch (type) {
1003 case RES_QP:
1004 ret = alloc_qp_tr(id);
1005 break;
1006 case RES_MPT:
1007 ret = alloc_mpt_tr(id, extra);
1008 break;
1009 case RES_MTT:
1010 ret = alloc_mtt_tr(id, extra);
1011 break;
1012 case RES_EQ:
1013 ret = alloc_eq_tr(id);
1014 break;
1015 case RES_CQ:
1016 ret = alloc_cq_tr(id);
1017 break;
1018 case RES_SRQ:
1019 ret = alloc_srq_tr(id);
1020 break;
1021 case RES_MAC:
1022 pr_err("implementation missing\n");
1023 return NULL;
1024 case RES_COUNTER:
1025 ret = alloc_counter_tr(id);
1026 break;
1027 case RES_XRCD:
1028 ret = alloc_xrcdn_tr(id);
1029 break;
1030 case RES_FS_RULE:
1031 ret = alloc_fs_rule_tr(id, extra);
1032 break;
1033 default:
1034 return NULL;
1035 }
1036 if (ret)
1037 ret->owner = slave;
1038
1039 return ret;
1040}
1041
1042static int add_res_range(struct mlx4_dev *dev, int slave, u64 base, int count,
1043 enum mlx4_resource type, int extra)
1044{
1045 int i;
1046 int err;
1047 struct mlx4_priv *priv = mlx4_priv(dev);
1048 struct res_common **res_arr;
1049 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1050 struct rb_root *root = &tracker->res_tree[type];
1051
1052 res_arr = kzalloc(count * sizeof *res_arr, GFP_KERNEL);
1053 if (!res_arr)
1054 return -ENOMEM;
1055
1056 for (i = 0; i < count; ++i) {
1057 res_arr[i] = alloc_tr(base + i, type, slave, extra);
1058 if (!res_arr[i]) {
1059 for (--i; i >= 0; --i)
1060 kfree(res_arr[i]);
1061
1062 kfree(res_arr);
1063 return -ENOMEM;
1064 }
1065 }
1066
1067 spin_lock_irq(mlx4_tlock(dev));
1068 for (i = 0; i < count; ++i) {
1069 if (find_res(dev, base + i, type)) {
1070 err = -EEXIST;
1071 goto undo;
1072 }
1073 err = res_tracker_insert(root, res_arr[i]);
1074 if (err)
1075 goto undo;
1076 list_add_tail(&res_arr[i]->list,
1077 &tracker->slave_list[slave].res_list[type]);
1078 }
1079 spin_unlock_irq(mlx4_tlock(dev));
1080 kfree(res_arr);
1081
1082 return 0;
1083
1084undo:
1085 for (--i; i >= base; --i)
1086 rb_erase(&res_arr[i]->node, root);
1087
1088 spin_unlock_irq(mlx4_tlock(dev));
1089
1090 for (i = 0; i < count; ++i)
1091 kfree(res_arr[i]);
1092
1093 kfree(res_arr);
1094
1095 return err;
1096}
1097
1098static int remove_qp_ok(struct res_qp *res)
1099{
1100 if (res->com.state == RES_QP_BUSY || atomic_read(&res->ref_count) ||
1101 !list_empty(&res->mcg_list)) {
1102 pr_err("resource tracker: fail to remove qp, state %d, ref_count %d\n",
1103 res->com.state, atomic_read(&res->ref_count));
1104 return -EBUSY;
1105 } else if (res->com.state != RES_QP_RESERVED) {
1106 return -EPERM;
1107 }
1108
1109 return 0;
1110}
1111
1112static int remove_mtt_ok(struct res_mtt *res, int order)
1113{
1114 if (res->com.state == RES_MTT_BUSY ||
1115 atomic_read(&res->ref_count)) {
1116 pr_devel("%s-%d: state %s, ref_count %d\n",
1117 __func__, __LINE__,
1118 mtt_states_str(res->com.state),
1119 atomic_read(&res->ref_count));
1120 return -EBUSY;
1121 } else if (res->com.state != RES_MTT_ALLOCATED)
1122 return -EPERM;
1123 else if (res->order != order)
1124 return -EINVAL;
1125
1126 return 0;
1127}
1128
1129static int remove_mpt_ok(struct res_mpt *res)
1130{
1131 if (res->com.state == RES_MPT_BUSY)
1132 return -EBUSY;
1133 else if (res->com.state != RES_MPT_RESERVED)
1134 return -EPERM;
1135
1136 return 0;
1137}
1138
1139static int remove_eq_ok(struct res_eq *res)
1140{
1141 if (res->com.state == RES_MPT_BUSY)
1142 return -EBUSY;
1143 else if (res->com.state != RES_MPT_RESERVED)
1144 return -EPERM;
1145
1146 return 0;
1147}
1148
1149static int remove_counter_ok(struct res_counter *res)
1150{
1151 if (res->com.state == RES_COUNTER_BUSY)
1152 return -EBUSY;
1153 else if (res->com.state != RES_COUNTER_ALLOCATED)
1154 return -EPERM;
1155
1156 return 0;
1157}
1158
1159static int remove_xrcdn_ok(struct res_xrcdn *res)
1160{
1161 if (res->com.state == RES_XRCD_BUSY)
1162 return -EBUSY;
1163 else if (res->com.state != RES_XRCD_ALLOCATED)
1164 return -EPERM;
1165
1166 return 0;
1167}
1168
1169static int remove_fs_rule_ok(struct res_fs_rule *res)
1170{
1171 if (res->com.state == RES_FS_RULE_BUSY)
1172 return -EBUSY;
1173 else if (res->com.state != RES_FS_RULE_ALLOCATED)
1174 return -EPERM;
1175
1176 return 0;
1177}
1178
1179static int remove_cq_ok(struct res_cq *res)
1180{
1181 if (res->com.state == RES_CQ_BUSY)
1182 return -EBUSY;
1183 else if (res->com.state != RES_CQ_ALLOCATED)
1184 return -EPERM;
1185
1186 return 0;
1187}
1188
1189static int remove_srq_ok(struct res_srq *res)
1190{
1191 if (res->com.state == RES_SRQ_BUSY)
1192 return -EBUSY;
1193 else if (res->com.state != RES_SRQ_ALLOCATED)
1194 return -EPERM;
1195
1196 return 0;
1197}
1198
1199static int remove_ok(struct res_common *res, enum mlx4_resource type, int extra)
1200{
1201 switch (type) {
1202 case RES_QP:
1203 return remove_qp_ok((struct res_qp *)res);
1204 case RES_CQ:
1205 return remove_cq_ok((struct res_cq *)res);
1206 case RES_SRQ:
1207 return remove_srq_ok((struct res_srq *)res);
1208 case RES_MPT:
1209 return remove_mpt_ok((struct res_mpt *)res);
1210 case RES_MTT:
1211 return remove_mtt_ok((struct res_mtt *)res, extra);
1212 case RES_MAC:
1213 return -ENOSYS;
1214 case RES_EQ:
1215 return remove_eq_ok((struct res_eq *)res);
1216 case RES_COUNTER:
1217 return remove_counter_ok((struct res_counter *)res);
1218 case RES_XRCD:
1219 return remove_xrcdn_ok((struct res_xrcdn *)res);
1220 case RES_FS_RULE:
1221 return remove_fs_rule_ok((struct res_fs_rule *)res);
1222 default:
1223 return -EINVAL;
1224 }
1225}
1226
1227static int rem_res_range(struct mlx4_dev *dev, int slave, u64 base, int count,
1228 enum mlx4_resource type, int extra)
1229{
1230 u64 i;
1231 int err;
1232 struct mlx4_priv *priv = mlx4_priv(dev);
1233 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1234 struct res_common *r;
1235
1236 spin_lock_irq(mlx4_tlock(dev));
1237 for (i = base; i < base + count; ++i) {
1238 r = res_tracker_lookup(&tracker->res_tree[type], i);
1239 if (!r) {
1240 err = -ENOENT;
1241 goto out;
1242 }
1243 if (r->owner != slave) {
1244 err = -EPERM;
1245 goto out;
1246 }
1247 err = remove_ok(r, type, extra);
1248 if (err)
1249 goto out;
1250 }
1251
1252 for (i = base; i < base + count; ++i) {
1253 r = res_tracker_lookup(&tracker->res_tree[type], i);
1254 rb_erase(&r->node, &tracker->res_tree[type]);
1255 list_del(&r->list);
1256 kfree(r);
1257 }
1258 err = 0;
1259
1260out:
1261 spin_unlock_irq(mlx4_tlock(dev));
1262
1263 return err;
1264}
1265
1266static int qp_res_start_move_to(struct mlx4_dev *dev, int slave, int qpn,
1267 enum res_qp_states state, struct res_qp **qp,
1268 int alloc)
1269{
1270 struct mlx4_priv *priv = mlx4_priv(dev);
1271 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1272 struct res_qp *r;
1273 int err = 0;
1274
1275 spin_lock_irq(mlx4_tlock(dev));
1276 r = res_tracker_lookup(&tracker->res_tree[RES_QP], qpn);
1277 if (!r)
1278 err = -ENOENT;
1279 else if (r->com.owner != slave)
1280 err = -EPERM;
1281 else {
1282 switch (state) {
1283 case RES_QP_BUSY:
1284 mlx4_dbg(dev, "%s: failed RES_QP, 0x%llx\n",
1285 __func__, r->com.res_id);
1286 err = -EBUSY;
1287 break;
1288
1289 case RES_QP_RESERVED:
1290 if (r->com.state == RES_QP_MAPPED && !alloc)
1291 break;
1292
1293 mlx4_dbg(dev, "failed RES_QP, 0x%llx\n", r->com.res_id);
1294 err = -EINVAL;
1295 break;
1296
1297 case RES_QP_MAPPED:
1298 if ((r->com.state == RES_QP_RESERVED && alloc) ||
1299 r->com.state == RES_QP_HW)
1300 break;
1301 else {
1302 mlx4_dbg(dev, "failed RES_QP, 0x%llx\n",
1303 r->com.res_id);
1304 err = -EINVAL;
1305 }
1306
1307 break;
1308
1309 case RES_QP_HW:
1310 if (r->com.state != RES_QP_MAPPED)
1311 err = -EINVAL;
1312 break;
1313 default:
1314 err = -EINVAL;
1315 }
1316
1317 if (!err) {
1318 r->com.from_state = r->com.state;
1319 r->com.to_state = state;
1320 r->com.state = RES_QP_BUSY;
1321 if (qp)
1322 *qp = r;
1323 }
1324 }
1325
1326 spin_unlock_irq(mlx4_tlock(dev));
1327
1328 return err;
1329}
1330
1331static int mr_res_start_move_to(struct mlx4_dev *dev, int slave, int index,
1332 enum res_mpt_states state, struct res_mpt **mpt)
1333{
1334 struct mlx4_priv *priv = mlx4_priv(dev);
1335 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1336 struct res_mpt *r;
1337 int err = 0;
1338
1339 spin_lock_irq(mlx4_tlock(dev));
1340 r = res_tracker_lookup(&tracker->res_tree[RES_MPT], index);
1341 if (!r)
1342 err = -ENOENT;
1343 else if (r->com.owner != slave)
1344 err = -EPERM;
1345 else {
1346 switch (state) {
1347 case RES_MPT_BUSY:
1348 err = -EINVAL;
1349 break;
1350
1351 case RES_MPT_RESERVED:
1352 if (r->com.state != RES_MPT_MAPPED)
1353 err = -EINVAL;
1354 break;
1355
1356 case RES_MPT_MAPPED:
1357 if (r->com.state != RES_MPT_RESERVED &&
1358 r->com.state != RES_MPT_HW)
1359 err = -EINVAL;
1360 break;
1361
1362 case RES_MPT_HW:
1363 if (r->com.state != RES_MPT_MAPPED)
1364 err = -EINVAL;
1365 break;
1366 default:
1367 err = -EINVAL;
1368 }
1369
1370 if (!err) {
1371 r->com.from_state = r->com.state;
1372 r->com.to_state = state;
1373 r->com.state = RES_MPT_BUSY;
1374 if (mpt)
1375 *mpt = r;
1376 }
1377 }
1378
1379 spin_unlock_irq(mlx4_tlock(dev));
1380
1381 return err;
1382}
1383
1384static int eq_res_start_move_to(struct mlx4_dev *dev, int slave, int index,
1385 enum res_eq_states state, struct res_eq **eq)
1386{
1387 struct mlx4_priv *priv = mlx4_priv(dev);
1388 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1389 struct res_eq *r;
1390 int err = 0;
1391
1392 spin_lock_irq(mlx4_tlock(dev));
1393 r = res_tracker_lookup(&tracker->res_tree[RES_EQ], index);
1394 if (!r)
1395 err = -ENOENT;
1396 else if (r->com.owner != slave)
1397 err = -EPERM;
1398 else {
1399 switch (state) {
1400 case RES_EQ_BUSY:
1401 err = -EINVAL;
1402 break;
1403
1404 case RES_EQ_RESERVED:
1405 if (r->com.state != RES_EQ_HW)
1406 err = -EINVAL;
1407 break;
1408
1409 case RES_EQ_HW:
1410 if (r->com.state != RES_EQ_RESERVED)
1411 err = -EINVAL;
1412 break;
1413
1414 default:
1415 err = -EINVAL;
1416 }
1417
1418 if (!err) {
1419 r->com.from_state = r->com.state;
1420 r->com.to_state = state;
1421 r->com.state = RES_EQ_BUSY;
1422 if (eq)
1423 *eq = r;
1424 }
1425 }
1426
1427 spin_unlock_irq(mlx4_tlock(dev));
1428
1429 return err;
1430}
1431
1432static int cq_res_start_move_to(struct mlx4_dev *dev, int slave, int cqn,
1433 enum res_cq_states state, struct res_cq **cq)
1434{
1435 struct mlx4_priv *priv = mlx4_priv(dev);
1436 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1437 struct res_cq *r;
1438 int err;
1439
1440 spin_lock_irq(mlx4_tlock(dev));
1441 r = res_tracker_lookup(&tracker->res_tree[RES_CQ], cqn);
1442 if (!r) {
1443 err = -ENOENT;
1444 } else if (r->com.owner != slave) {
1445 err = -EPERM;
1446 } else if (state == RES_CQ_ALLOCATED) {
1447 if (r->com.state != RES_CQ_HW)
1448 err = -EINVAL;
1449 else if (atomic_read(&r->ref_count))
1450 err = -EBUSY;
1451 else
1452 err = 0;
1453 } else if (state != RES_CQ_HW || r->com.state != RES_CQ_ALLOCATED) {
1454 err = -EINVAL;
1455 } else {
1456 err = 0;
1457 }
1458
1459 if (!err) {
1460 r->com.from_state = r->com.state;
1461 r->com.to_state = state;
1462 r->com.state = RES_CQ_BUSY;
1463 if (cq)
1464 *cq = r;
1465 }
1466
1467 spin_unlock_irq(mlx4_tlock(dev));
1468
1469 return err;
1470}
1471
1472static int srq_res_start_move_to(struct mlx4_dev *dev, int slave, int index,
1473 enum res_srq_states state, struct res_srq **srq)
1474{
1475 struct mlx4_priv *priv = mlx4_priv(dev);
1476 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1477 struct res_srq *r;
1478 int err = 0;
1479
1480 spin_lock_irq(mlx4_tlock(dev));
1481 r = res_tracker_lookup(&tracker->res_tree[RES_SRQ], index);
1482 if (!r) {
1483 err = -ENOENT;
1484 } else if (r->com.owner != slave) {
1485 err = -EPERM;
1486 } else if (state == RES_SRQ_ALLOCATED) {
1487 if (r->com.state != RES_SRQ_HW)
1488 err = -EINVAL;
1489 else if (atomic_read(&r->ref_count))
1490 err = -EBUSY;
1491 } else if (state != RES_SRQ_HW || r->com.state != RES_SRQ_ALLOCATED) {
1492 err = -EINVAL;
1493 }
1494
1495 if (!err) {
1496 r->com.from_state = r->com.state;
1497 r->com.to_state = state;
1498 r->com.state = RES_SRQ_BUSY;
1499 if (srq)
1500 *srq = r;
1501 }
1502
1503 spin_unlock_irq(mlx4_tlock(dev));
1504
1505 return err;
1506}
1507
1508static void res_abort_move(struct mlx4_dev *dev, int slave,
1509 enum mlx4_resource type, int id)
1510{
1511 struct mlx4_priv *priv = mlx4_priv(dev);
1512 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1513 struct res_common *r;
1514
1515 spin_lock_irq(mlx4_tlock(dev));
1516 r = res_tracker_lookup(&tracker->res_tree[type], id);
1517 if (r && (r->owner == slave))
1518 r->state = r->from_state;
1519 spin_unlock_irq(mlx4_tlock(dev));
1520}
1521
1522static void res_end_move(struct mlx4_dev *dev, int slave,
1523 enum mlx4_resource type, int id)
1524{
1525 struct mlx4_priv *priv = mlx4_priv(dev);
1526 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1527 struct res_common *r;
1528
1529 spin_lock_irq(mlx4_tlock(dev));
1530 r = res_tracker_lookup(&tracker->res_tree[type], id);
1531 if (r && (r->owner == slave))
1532 r->state = r->to_state;
1533 spin_unlock_irq(mlx4_tlock(dev));
1534}
1535
1536static int valid_reserved(struct mlx4_dev *dev, int slave, int qpn)
1537{
1538 return mlx4_is_qp_reserved(dev, qpn) &&
1539 (mlx4_is_master(dev) || mlx4_is_guest_proxy(dev, slave, qpn));
1540}
1541
1542static int fw_reserved(struct mlx4_dev *dev, int qpn)
1543{
1544 return qpn < dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW];
1545}
1546
1547static int qp_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1548 u64 in_param, u64 *out_param)
1549{
1550 int err;
1551 int count;
1552 int align;
1553 int base;
1554 int qpn;
1555 u8 flags;
1556
1557 switch (op) {
1558 case RES_OP_RESERVE:
1559 count = get_param_l(&in_param) & 0xffffff;
1560
1561
1562
1563 flags = (get_param_l(&in_param) >> 24) & dev->caps.alloc_res_qp_mask;
1564 align = get_param_h(&in_param);
1565 err = mlx4_grant_resource(dev, slave, RES_QP, count, 0);
1566 if (err)
1567 return err;
1568
1569 err = __mlx4_qp_reserve_range(dev, count, align, &base, flags);
1570 if (err) {
1571 mlx4_release_resource(dev, slave, RES_QP, count, 0);
1572 return err;
1573 }
1574
1575 err = add_res_range(dev, slave, base, count, RES_QP, 0);
1576 if (err) {
1577 mlx4_release_resource(dev, slave, RES_QP, count, 0);
1578 __mlx4_qp_release_range(dev, base, count);
1579 return err;
1580 }
1581 set_param_l(out_param, base);
1582 break;
1583 case RES_OP_MAP_ICM:
1584 qpn = get_param_l(&in_param) & 0x7fffff;
1585 if (valid_reserved(dev, slave, qpn)) {
1586 err = add_res_range(dev, slave, qpn, 1, RES_QP, 0);
1587 if (err)
1588 return err;
1589 }
1590
1591 err = qp_res_start_move_to(dev, slave, qpn, RES_QP_MAPPED,
1592 NULL, 1);
1593 if (err)
1594 return err;
1595
1596 if (!fw_reserved(dev, qpn)) {
1597 err = __mlx4_qp_alloc_icm(dev, qpn, GFP_KERNEL);
1598 if (err) {
1599 res_abort_move(dev, slave, RES_QP, qpn);
1600 return err;
1601 }
1602 }
1603
1604 res_end_move(dev, slave, RES_QP, qpn);
1605 break;
1606
1607 default:
1608 err = -EINVAL;
1609 break;
1610 }
1611 return err;
1612}
1613
1614static int mtt_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1615 u64 in_param, u64 *out_param)
1616{
1617 int err = -EINVAL;
1618 int base;
1619 int order;
1620
1621 if (op != RES_OP_RESERVE_AND_MAP)
1622 return err;
1623
1624 order = get_param_l(&in_param);
1625
1626 err = mlx4_grant_resource(dev, slave, RES_MTT, 1 << order, 0);
1627 if (err)
1628 return err;
1629
1630 base = __mlx4_alloc_mtt_range(dev, order);
1631 if (base == -1) {
1632 mlx4_release_resource(dev, slave, RES_MTT, 1 << order, 0);
1633 return -ENOMEM;
1634 }
1635
1636 err = add_res_range(dev, slave, base, 1, RES_MTT, order);
1637 if (err) {
1638 mlx4_release_resource(dev, slave, RES_MTT, 1 << order, 0);
1639 __mlx4_free_mtt_range(dev, base, order);
1640 } else {
1641 set_param_l(out_param, base);
1642 }
1643
1644 return err;
1645}
1646
1647static int mpt_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1648 u64 in_param, u64 *out_param)
1649{
1650 int err = -EINVAL;
1651 int index;
1652 int id;
1653 struct res_mpt *mpt;
1654
1655 switch (op) {
1656 case RES_OP_RESERVE:
1657 err = mlx4_grant_resource(dev, slave, RES_MPT, 1, 0);
1658 if (err)
1659 break;
1660
1661 index = __mlx4_mpt_reserve(dev);
1662 if (index == -1) {
1663 mlx4_release_resource(dev, slave, RES_MPT, 1, 0);
1664 break;
1665 }
1666 id = index & mpt_mask(dev);
1667
1668 err = add_res_range(dev, slave, id, 1, RES_MPT, index);
1669 if (err) {
1670 mlx4_release_resource(dev, slave, RES_MPT, 1, 0);
1671 __mlx4_mpt_release(dev, index);
1672 break;
1673 }
1674 set_param_l(out_param, index);
1675 break;
1676 case RES_OP_MAP_ICM:
1677 index = get_param_l(&in_param);
1678 id = index & mpt_mask(dev);
1679 err = mr_res_start_move_to(dev, slave, id,
1680 RES_MPT_MAPPED, &mpt);
1681 if (err)
1682 return err;
1683
1684 err = __mlx4_mpt_alloc_icm(dev, mpt->key, GFP_KERNEL);
1685 if (err) {
1686 res_abort_move(dev, slave, RES_MPT, id);
1687 return err;
1688 }
1689
1690 res_end_move(dev, slave, RES_MPT, id);
1691 break;
1692 }
1693 return err;
1694}
1695
1696static int cq_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1697 u64 in_param, u64 *out_param)
1698{
1699 int cqn;
1700 int err;
1701
1702 switch (op) {
1703 case RES_OP_RESERVE_AND_MAP:
1704 err = mlx4_grant_resource(dev, slave, RES_CQ, 1, 0);
1705 if (err)
1706 break;
1707
1708 err = __mlx4_cq_alloc_icm(dev, &cqn);
1709 if (err) {
1710 mlx4_release_resource(dev, slave, RES_CQ, 1, 0);
1711 break;
1712 }
1713
1714 err = add_res_range(dev, slave, cqn, 1, RES_CQ, 0);
1715 if (err) {
1716 mlx4_release_resource(dev, slave, RES_CQ, 1, 0);
1717 __mlx4_cq_free_icm(dev, cqn);
1718 break;
1719 }
1720
1721 set_param_l(out_param, cqn);
1722 break;
1723
1724 default:
1725 err = -EINVAL;
1726 }
1727
1728 return err;
1729}
1730
1731static int srq_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1732 u64 in_param, u64 *out_param)
1733{
1734 int srqn;
1735 int err;
1736
1737 switch (op) {
1738 case RES_OP_RESERVE_AND_MAP:
1739 err = mlx4_grant_resource(dev, slave, RES_SRQ, 1, 0);
1740 if (err)
1741 break;
1742
1743 err = __mlx4_srq_alloc_icm(dev, &srqn);
1744 if (err) {
1745 mlx4_release_resource(dev, slave, RES_SRQ, 1, 0);
1746 break;
1747 }
1748
1749 err = add_res_range(dev, slave, srqn, 1, RES_SRQ, 0);
1750 if (err) {
1751 mlx4_release_resource(dev, slave, RES_SRQ, 1, 0);
1752 __mlx4_srq_free_icm(dev, srqn);
1753 break;
1754 }
1755
1756 set_param_l(out_param, srqn);
1757 break;
1758
1759 default:
1760 err = -EINVAL;
1761 }
1762
1763 return err;
1764}
1765
1766static int mac_find_smac_ix_in_slave(struct mlx4_dev *dev, int slave, int port,
1767 u8 smac_index, u64 *mac)
1768{
1769 struct mlx4_priv *priv = mlx4_priv(dev);
1770 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1771 struct list_head *mac_list =
1772 &tracker->slave_list[slave].res_list[RES_MAC];
1773 struct mac_res *res, *tmp;
1774
1775 list_for_each_entry_safe(res, tmp, mac_list, list) {
1776 if (res->smac_index == smac_index && res->port == (u8) port) {
1777 *mac = res->mac;
1778 return 0;
1779 }
1780 }
1781 return -ENOENT;
1782}
1783
1784static int mac_add_to_slave(struct mlx4_dev *dev, int slave, u64 mac, int port, u8 smac_index)
1785{
1786 struct mlx4_priv *priv = mlx4_priv(dev);
1787 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1788 struct list_head *mac_list =
1789 &tracker->slave_list[slave].res_list[RES_MAC];
1790 struct mac_res *res, *tmp;
1791
1792 list_for_each_entry_safe(res, tmp, mac_list, list) {
1793 if (res->mac == mac && res->port == (u8) port) {
1794
1795 ++res->ref_count;
1796 return 0;
1797 }
1798 }
1799
1800 if (mlx4_grant_resource(dev, slave, RES_MAC, 1, port))
1801 return -EINVAL;
1802 res = kzalloc(sizeof *res, GFP_KERNEL);
1803 if (!res) {
1804 mlx4_release_resource(dev, slave, RES_MAC, 1, port);
1805 return -ENOMEM;
1806 }
1807 res->mac = mac;
1808 res->port = (u8) port;
1809 res->smac_index = smac_index;
1810 res->ref_count = 1;
1811 list_add_tail(&res->list,
1812 &tracker->slave_list[slave].res_list[RES_MAC]);
1813 return 0;
1814}
1815
1816static void mac_del_from_slave(struct mlx4_dev *dev, int slave, u64 mac,
1817 int port)
1818{
1819 struct mlx4_priv *priv = mlx4_priv(dev);
1820 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1821 struct list_head *mac_list =
1822 &tracker->slave_list[slave].res_list[RES_MAC];
1823 struct mac_res *res, *tmp;
1824
1825 list_for_each_entry_safe(res, tmp, mac_list, list) {
1826 if (res->mac == mac && res->port == (u8) port) {
1827 if (!--res->ref_count) {
1828 list_del(&res->list);
1829 mlx4_release_resource(dev, slave, RES_MAC, 1, port);
1830 kfree(res);
1831 }
1832 break;
1833 }
1834 }
1835}
1836
1837static void rem_slave_macs(struct mlx4_dev *dev, int slave)
1838{
1839 struct mlx4_priv *priv = mlx4_priv(dev);
1840 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1841 struct list_head *mac_list =
1842 &tracker->slave_list[slave].res_list[RES_MAC];
1843 struct mac_res *res, *tmp;
1844 int i;
1845
1846 list_for_each_entry_safe(res, tmp, mac_list, list) {
1847 list_del(&res->list);
1848
1849 for (i = 0; i < res->ref_count; i++)
1850 __mlx4_unregister_mac(dev, res->port, res->mac);
1851 mlx4_release_resource(dev, slave, RES_MAC, 1, res->port);
1852 kfree(res);
1853 }
1854}
1855
1856static int mac_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1857 u64 in_param, u64 *out_param, int in_port)
1858{
1859 int err = -EINVAL;
1860 int port;
1861 u64 mac;
1862 u8 smac_index;
1863
1864 if (op != RES_OP_RESERVE_AND_MAP)
1865 return err;
1866
1867 port = !in_port ? get_param_l(out_param) : in_port;
1868 port = mlx4_slave_convert_port(
1869 dev, slave, port);
1870
1871 if (port < 0)
1872 return -EINVAL;
1873 mac = in_param;
1874
1875 err = __mlx4_register_mac(dev, port, mac);
1876 if (err >= 0) {
1877 smac_index = err;
1878 set_param_l(out_param, err);
1879 err = 0;
1880 }
1881
1882 if (!err) {
1883 err = mac_add_to_slave(dev, slave, mac, port, smac_index);
1884 if (err)
1885 __mlx4_unregister_mac(dev, port, mac);
1886 }
1887 return err;
1888}
1889
1890static int vlan_add_to_slave(struct mlx4_dev *dev, int slave, u16 vlan,
1891 int port, int vlan_index)
1892{
1893 struct mlx4_priv *priv = mlx4_priv(dev);
1894 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1895 struct list_head *vlan_list =
1896 &tracker->slave_list[slave].res_list[RES_VLAN];
1897 struct vlan_res *res, *tmp;
1898
1899 list_for_each_entry_safe(res, tmp, vlan_list, list) {
1900 if (res->vlan == vlan && res->port == (u8) port) {
1901
1902 ++res->ref_count;
1903 return 0;
1904 }
1905 }
1906
1907 if (mlx4_grant_resource(dev, slave, RES_VLAN, 1, port))
1908 return -EINVAL;
1909 res = kzalloc(sizeof(*res), GFP_KERNEL);
1910 if (!res) {
1911 mlx4_release_resource(dev, slave, RES_VLAN, 1, port);
1912 return -ENOMEM;
1913 }
1914 res->vlan = vlan;
1915 res->port = (u8) port;
1916 res->vlan_index = vlan_index;
1917 res->ref_count = 1;
1918 list_add_tail(&res->list,
1919 &tracker->slave_list[slave].res_list[RES_VLAN]);
1920 return 0;
1921}
1922
1923
1924static void vlan_del_from_slave(struct mlx4_dev *dev, int slave, u16 vlan,
1925 int port)
1926{
1927 struct mlx4_priv *priv = mlx4_priv(dev);
1928 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1929 struct list_head *vlan_list =
1930 &tracker->slave_list[slave].res_list[RES_VLAN];
1931 struct vlan_res *res, *tmp;
1932
1933 list_for_each_entry_safe(res, tmp, vlan_list, list) {
1934 if (res->vlan == vlan && res->port == (u8) port) {
1935 if (!--res->ref_count) {
1936 list_del(&res->list);
1937 mlx4_release_resource(dev, slave, RES_VLAN,
1938 1, port);
1939 kfree(res);
1940 }
1941 break;
1942 }
1943 }
1944}
1945
1946static void rem_slave_vlans(struct mlx4_dev *dev, int slave)
1947{
1948 struct mlx4_priv *priv = mlx4_priv(dev);
1949 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
1950 struct list_head *vlan_list =
1951 &tracker->slave_list[slave].res_list[RES_VLAN];
1952 struct vlan_res *res, *tmp;
1953 int i;
1954
1955 list_for_each_entry_safe(res, tmp, vlan_list, list) {
1956 list_del(&res->list);
1957
1958 for (i = 0; i < res->ref_count; i++)
1959 __mlx4_unregister_vlan(dev, res->port, res->vlan);
1960 mlx4_release_resource(dev, slave, RES_VLAN, 1, res->port);
1961 kfree(res);
1962 }
1963}
1964
1965static int vlan_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
1966 u64 in_param, u64 *out_param, int in_port)
1967{
1968 struct mlx4_priv *priv = mlx4_priv(dev);
1969 struct mlx4_slave_state *slave_state = priv->mfunc.master.slave_state;
1970 int err;
1971 u16 vlan;
1972 int vlan_index;
1973 int port;
1974
1975 port = !in_port ? get_param_l(out_param) : in_port;
1976
1977 if (!port || op != RES_OP_RESERVE_AND_MAP)
1978 return -EINVAL;
1979
1980 port = mlx4_slave_convert_port(
1981 dev, slave, port);
1982
1983 if (port < 0)
1984 return -EINVAL;
1985
1986 if (!in_port && port > 0 && port <= dev->caps.num_ports) {
1987 slave_state[slave].old_vlan_api = true;
1988 return 0;
1989 }
1990
1991 vlan = (u16) in_param;
1992
1993 err = __mlx4_register_vlan(dev, port, vlan, &vlan_index);
1994 if (!err) {
1995 set_param_l(out_param, (u32) vlan_index);
1996 err = vlan_add_to_slave(dev, slave, vlan, port, vlan_index);
1997 if (err)
1998 __mlx4_unregister_vlan(dev, port, vlan);
1999 }
2000 return err;
2001}
2002
2003static int counter_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2004 u64 in_param, u64 *out_param)
2005{
2006 u32 index;
2007 int err;
2008
2009 if (op != RES_OP_RESERVE)
2010 return -EINVAL;
2011
2012 err = mlx4_grant_resource(dev, slave, RES_COUNTER, 1, 0);
2013 if (err)
2014 return err;
2015
2016 err = __mlx4_counter_alloc(dev, &index);
2017 if (err) {
2018 mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0);
2019 return err;
2020 }
2021
2022 err = add_res_range(dev, slave, index, 1, RES_COUNTER, 0);
2023 if (err) {
2024 __mlx4_counter_free(dev, index);
2025 mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0);
2026 } else {
2027 set_param_l(out_param, index);
2028 }
2029
2030 return err;
2031}
2032
2033static int xrcdn_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2034 u64 in_param, u64 *out_param)
2035{
2036 u32 xrcdn;
2037 int err;
2038
2039 if (op != RES_OP_RESERVE)
2040 return -EINVAL;
2041
2042 err = __mlx4_xrcd_alloc(dev, &xrcdn);
2043 if (err)
2044 return err;
2045
2046 err = add_res_range(dev, slave, xrcdn, 1, RES_XRCD, 0);
2047 if (err)
2048 __mlx4_xrcd_free(dev, xrcdn);
2049 else
2050 set_param_l(out_param, xrcdn);
2051
2052 return err;
2053}
2054
2055int mlx4_ALLOC_RES_wrapper(struct mlx4_dev *dev, int slave,
2056 struct mlx4_vhcr *vhcr,
2057 struct mlx4_cmd_mailbox *inbox,
2058 struct mlx4_cmd_mailbox *outbox,
2059 struct mlx4_cmd_info *cmd)
2060{
2061 int err;
2062 int alop = vhcr->op_modifier;
2063
2064 switch (vhcr->in_modifier & 0xFF) {
2065 case RES_QP:
2066 err = qp_alloc_res(dev, slave, vhcr->op_modifier, alop,
2067 vhcr->in_param, &vhcr->out_param);
2068 break;
2069
2070 case RES_MTT:
2071 err = mtt_alloc_res(dev, slave, vhcr->op_modifier, alop,
2072 vhcr->in_param, &vhcr->out_param);
2073 break;
2074
2075 case RES_MPT:
2076 err = mpt_alloc_res(dev, slave, vhcr->op_modifier, alop,
2077 vhcr->in_param, &vhcr->out_param);
2078 break;
2079
2080 case RES_CQ:
2081 err = cq_alloc_res(dev, slave, vhcr->op_modifier, alop,
2082 vhcr->in_param, &vhcr->out_param);
2083 break;
2084
2085 case RES_SRQ:
2086 err = srq_alloc_res(dev, slave, vhcr->op_modifier, alop,
2087 vhcr->in_param, &vhcr->out_param);
2088 break;
2089
2090 case RES_MAC:
2091 err = mac_alloc_res(dev, slave, vhcr->op_modifier, alop,
2092 vhcr->in_param, &vhcr->out_param,
2093 (vhcr->in_modifier >> 8) & 0xFF);
2094 break;
2095
2096 case RES_VLAN:
2097 err = vlan_alloc_res(dev, slave, vhcr->op_modifier, alop,
2098 vhcr->in_param, &vhcr->out_param,
2099 (vhcr->in_modifier >> 8) & 0xFF);
2100 break;
2101
2102 case RES_COUNTER:
2103 err = counter_alloc_res(dev, slave, vhcr->op_modifier, alop,
2104 vhcr->in_param, &vhcr->out_param);
2105 break;
2106
2107 case RES_XRCD:
2108 err = xrcdn_alloc_res(dev, slave, vhcr->op_modifier, alop,
2109 vhcr->in_param, &vhcr->out_param);
2110 break;
2111
2112 default:
2113 err = -EINVAL;
2114 break;
2115 }
2116
2117 return err;
2118}
2119
2120static int qp_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2121 u64 in_param)
2122{
2123 int err;
2124 int count;
2125 int base;
2126 int qpn;
2127
2128 switch (op) {
2129 case RES_OP_RESERVE:
2130 base = get_param_l(&in_param) & 0x7fffff;
2131 count = get_param_h(&in_param);
2132 err = rem_res_range(dev, slave, base, count, RES_QP, 0);
2133 if (err)
2134 break;
2135 mlx4_release_resource(dev, slave, RES_QP, count, 0);
2136 __mlx4_qp_release_range(dev, base, count);
2137 break;
2138 case RES_OP_MAP_ICM:
2139 qpn = get_param_l(&in_param) & 0x7fffff;
2140 err = qp_res_start_move_to(dev, slave, qpn, RES_QP_RESERVED,
2141 NULL, 0);
2142 if (err)
2143 return err;
2144
2145 if (!fw_reserved(dev, qpn))
2146 __mlx4_qp_free_icm(dev, qpn);
2147
2148 res_end_move(dev, slave, RES_QP, qpn);
2149
2150 if (valid_reserved(dev, slave, qpn))
2151 err = rem_res_range(dev, slave, qpn, 1, RES_QP, 0);
2152 break;
2153 default:
2154 err = -EINVAL;
2155 break;
2156 }
2157 return err;
2158}
2159
2160static int mtt_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2161 u64 in_param, u64 *out_param)
2162{
2163 int err = -EINVAL;
2164 int base;
2165 int order;
2166
2167 if (op != RES_OP_RESERVE_AND_MAP)
2168 return err;
2169
2170 base = get_param_l(&in_param);
2171 order = get_param_h(&in_param);
2172 err = rem_res_range(dev, slave, base, 1, RES_MTT, order);
2173 if (!err) {
2174 mlx4_release_resource(dev, slave, RES_MTT, 1 << order, 0);
2175 __mlx4_free_mtt_range(dev, base, order);
2176 }
2177 return err;
2178}
2179
2180static int mpt_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2181 u64 in_param)
2182{
2183 int err = -EINVAL;
2184 int index;
2185 int id;
2186 struct res_mpt *mpt;
2187
2188 switch (op) {
2189 case RES_OP_RESERVE:
2190 index = get_param_l(&in_param);
2191 id = index & mpt_mask(dev);
2192 err = get_res(dev, slave, id, RES_MPT, &mpt);
2193 if (err)
2194 break;
2195 index = mpt->key;
2196 put_res(dev, slave, id, RES_MPT);
2197
2198 err = rem_res_range(dev, slave, id, 1, RES_MPT, 0);
2199 if (err)
2200 break;
2201 mlx4_release_resource(dev, slave, RES_MPT, 1, 0);
2202 __mlx4_mpt_release(dev, index);
2203 break;
2204 case RES_OP_MAP_ICM:
2205 index = get_param_l(&in_param);
2206 id = index & mpt_mask(dev);
2207 err = mr_res_start_move_to(dev, slave, id,
2208 RES_MPT_RESERVED, &mpt);
2209 if (err)
2210 return err;
2211
2212 __mlx4_mpt_free_icm(dev, mpt->key);
2213 res_end_move(dev, slave, RES_MPT, id);
2214 return err;
2215 break;
2216 default:
2217 err = -EINVAL;
2218 break;
2219 }
2220 return err;
2221}
2222
2223static int cq_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2224 u64 in_param, u64 *out_param)
2225{
2226 int cqn;
2227 int err;
2228
2229 switch (op) {
2230 case RES_OP_RESERVE_AND_MAP:
2231 cqn = get_param_l(&in_param);
2232 err = rem_res_range(dev, slave, cqn, 1, RES_CQ, 0);
2233 if (err)
2234 break;
2235
2236 mlx4_release_resource(dev, slave, RES_CQ, 1, 0);
2237 __mlx4_cq_free_icm(dev, cqn);
2238 break;
2239
2240 default:
2241 err = -EINVAL;
2242 break;
2243 }
2244
2245 return err;
2246}
2247
2248static int srq_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2249 u64 in_param, u64 *out_param)
2250{
2251 int srqn;
2252 int err;
2253
2254 switch (op) {
2255 case RES_OP_RESERVE_AND_MAP:
2256 srqn = get_param_l(&in_param);
2257 err = rem_res_range(dev, slave, srqn, 1, RES_SRQ, 0);
2258 if (err)
2259 break;
2260
2261 mlx4_release_resource(dev, slave, RES_SRQ, 1, 0);
2262 __mlx4_srq_free_icm(dev, srqn);
2263 break;
2264
2265 default:
2266 err = -EINVAL;
2267 break;
2268 }
2269
2270 return err;
2271}
2272
2273static int mac_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2274 u64 in_param, u64 *out_param, int in_port)
2275{
2276 int port;
2277 int err = 0;
2278
2279 switch (op) {
2280 case RES_OP_RESERVE_AND_MAP:
2281 port = !in_port ? get_param_l(out_param) : in_port;
2282 port = mlx4_slave_convert_port(
2283 dev, slave, port);
2284
2285 if (port < 0)
2286 return -EINVAL;
2287 mac_del_from_slave(dev, slave, in_param, port);
2288 __mlx4_unregister_mac(dev, port, in_param);
2289 break;
2290 default:
2291 err = -EINVAL;
2292 break;
2293 }
2294
2295 return err;
2296
2297}
2298
2299static int vlan_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2300 u64 in_param, u64 *out_param, int port)
2301{
2302 struct mlx4_priv *priv = mlx4_priv(dev);
2303 struct mlx4_slave_state *slave_state = priv->mfunc.master.slave_state;
2304 int err = 0;
2305
2306 port = mlx4_slave_convert_port(
2307 dev, slave, port);
2308
2309 if (port < 0)
2310 return -EINVAL;
2311 switch (op) {
2312 case RES_OP_RESERVE_AND_MAP:
2313 if (slave_state[slave].old_vlan_api)
2314 return 0;
2315 if (!port)
2316 return -EINVAL;
2317 vlan_del_from_slave(dev, slave, in_param, port);
2318 __mlx4_unregister_vlan(dev, port, in_param);
2319 break;
2320 default:
2321 err = -EINVAL;
2322 break;
2323 }
2324
2325 return err;
2326}
2327
2328static int counter_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2329 u64 in_param, u64 *out_param)
2330{
2331 int index;
2332 int err;
2333
2334 if (op != RES_OP_RESERVE)
2335 return -EINVAL;
2336
2337 index = get_param_l(&in_param);
2338 err = rem_res_range(dev, slave, index, 1, RES_COUNTER, 0);
2339 if (err)
2340 return err;
2341
2342 __mlx4_counter_free(dev, index);
2343 mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0);
2344
2345 return err;
2346}
2347
2348static int xrcdn_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
2349 u64 in_param, u64 *out_param)
2350{
2351 int xrcdn;
2352 int err;
2353
2354 if (op != RES_OP_RESERVE)
2355 return -EINVAL;
2356
2357 xrcdn = get_param_l(&in_param);
2358 err = rem_res_range(dev, slave, xrcdn, 1, RES_XRCD, 0);
2359 if (err)
2360 return err;
2361
2362 __mlx4_xrcd_free(dev, xrcdn);
2363
2364 return err;
2365}
2366
2367int mlx4_FREE_RES_wrapper(struct mlx4_dev *dev, int slave,
2368 struct mlx4_vhcr *vhcr,
2369 struct mlx4_cmd_mailbox *inbox,
2370 struct mlx4_cmd_mailbox *outbox,
2371 struct mlx4_cmd_info *cmd)
2372{
2373 int err = -EINVAL;
2374 int alop = vhcr->op_modifier;
2375
2376 switch (vhcr->in_modifier & 0xFF) {
2377 case RES_QP:
2378 err = qp_free_res(dev, slave, vhcr->op_modifier, alop,
2379 vhcr->in_param);
2380 break;
2381
2382 case RES_MTT:
2383 err = mtt_free_res(dev, slave, vhcr->op_modifier, alop,
2384 vhcr->in_param, &vhcr->out_param);
2385 break;
2386
2387 case RES_MPT:
2388 err = mpt_free_res(dev, slave, vhcr->op_modifier, alop,
2389 vhcr->in_param);
2390 break;
2391
2392 case RES_CQ:
2393 err = cq_free_res(dev, slave, vhcr->op_modifier, alop,
2394 vhcr->in_param, &vhcr->out_param);
2395 break;
2396
2397 case RES_SRQ:
2398 err = srq_free_res(dev, slave, vhcr->op_modifier, alop,
2399 vhcr->in_param, &vhcr->out_param);
2400 break;
2401
2402 case RES_MAC:
2403 err = mac_free_res(dev, slave, vhcr->op_modifier, alop,
2404 vhcr->in_param, &vhcr->out_param,
2405 (vhcr->in_modifier >> 8) & 0xFF);
2406 break;
2407
2408 case RES_VLAN:
2409 err = vlan_free_res(dev, slave, vhcr->op_modifier, alop,
2410 vhcr->in_param, &vhcr->out_param,
2411 (vhcr->in_modifier >> 8) & 0xFF);
2412 break;
2413
2414 case RES_COUNTER:
2415 err = counter_free_res(dev, slave, vhcr->op_modifier, alop,
2416 vhcr->in_param, &vhcr->out_param);
2417 break;
2418
2419 case RES_XRCD:
2420 err = xrcdn_free_res(dev, slave, vhcr->op_modifier, alop,
2421 vhcr->in_param, &vhcr->out_param);
2422
2423 default:
2424 break;
2425 }
2426 return err;
2427}
2428
2429
2430static int mr_phys_mpt(struct mlx4_mpt_entry *mpt)
2431{
2432 return (be32_to_cpu(mpt->flags) >> 9) & 1;
2433}
2434
2435static int mr_get_mtt_addr(struct mlx4_mpt_entry *mpt)
2436{
2437 return (int)be64_to_cpu(mpt->mtt_addr) & 0xfffffff8;
2438}
2439
2440static int mr_get_mtt_size(struct mlx4_mpt_entry *mpt)
2441{
2442 return be32_to_cpu(mpt->mtt_sz);
2443}
2444
2445static u32 mr_get_pd(struct mlx4_mpt_entry *mpt)
2446{
2447 return be32_to_cpu(mpt->pd_flags) & 0x00ffffff;
2448}
2449
2450static int mr_is_fmr(struct mlx4_mpt_entry *mpt)
2451{
2452 return be32_to_cpu(mpt->pd_flags) & MLX4_MPT_PD_FLAG_FAST_REG;
2453}
2454
2455static int mr_is_bind_enabled(struct mlx4_mpt_entry *mpt)
2456{
2457 return be32_to_cpu(mpt->flags) & MLX4_MPT_FLAG_BIND_ENABLE;
2458}
2459
2460static int mr_is_region(struct mlx4_mpt_entry *mpt)
2461{
2462 return be32_to_cpu(mpt->flags) & MLX4_MPT_FLAG_REGION;
2463}
2464
2465static int qp_get_mtt_addr(struct mlx4_qp_context *qpc)
2466{
2467 return be32_to_cpu(qpc->mtt_base_addr_l) & 0xfffffff8;
2468}
2469
2470static int srq_get_mtt_addr(struct mlx4_srq_context *srqc)
2471{
2472 return be32_to_cpu(srqc->mtt_base_addr_l) & 0xfffffff8;
2473}
2474
2475static int qp_get_mtt_size(struct mlx4_qp_context *qpc)
2476{
2477 int page_shift = (qpc->log_page_size & 0x3f) + 12;
2478 int log_sq_size = (qpc->sq_size_stride >> 3) & 0xf;
2479 int log_sq_sride = qpc->sq_size_stride & 7;
2480 int log_rq_size = (qpc->rq_size_stride >> 3) & 0xf;
2481 int log_rq_stride = qpc->rq_size_stride & 7;
2482 int srq = (be32_to_cpu(qpc->srqn) >> 24) & 1;
2483 int rss = (be32_to_cpu(qpc->flags) >> 13) & 1;
2484 u32 ts = (be32_to_cpu(qpc->flags) >> 16) & 0xff;
2485 int xrc = (ts == MLX4_QP_ST_XRC) ? 1 : 0;
2486 int sq_size;
2487 int rq_size;
2488 int total_pages;
2489 int total_mem;
2490 int page_offset = (be32_to_cpu(qpc->params2) >> 6) & 0x3f;
2491
2492 sq_size = 1 << (log_sq_size + log_sq_sride + 4);
2493 rq_size = (srq|rss|xrc) ? 0 : (1 << (log_rq_size + log_rq_stride + 4));
2494 total_mem = sq_size + rq_size;
2495 total_pages =
2496 roundup_pow_of_two((total_mem + (page_offset << 6)) >>
2497 page_shift);
2498
2499 return total_pages;
2500}
2501
2502static int check_mtt_range(struct mlx4_dev *dev, int slave, int start,
2503 int size, struct res_mtt *mtt)
2504{
2505 int res_start = mtt->com.res_id;
2506 int res_size = (1 << mtt->order);
2507
2508 if (start < res_start || start + size > res_start + res_size)
2509 return -EPERM;
2510 return 0;
2511}
2512
2513int mlx4_SW2HW_MPT_wrapper(struct mlx4_dev *dev, int slave,
2514 struct mlx4_vhcr *vhcr,
2515 struct mlx4_cmd_mailbox *inbox,
2516 struct mlx4_cmd_mailbox *outbox,
2517 struct mlx4_cmd_info *cmd)
2518{
2519 int err;
2520 int index = vhcr->in_modifier;
2521 struct res_mtt *mtt;
2522 struct res_mpt *mpt;
2523 int mtt_base = mr_get_mtt_addr(inbox->buf) / dev->caps.mtt_entry_sz;
2524 int phys;
2525 int id;
2526 u32 pd;
2527 int pd_slave;
2528
2529 id = index & mpt_mask(dev);
2530 err = mr_res_start_move_to(dev, slave, id, RES_MPT_HW, &mpt);
2531 if (err)
2532 return err;
2533
2534
2535 if (!mr_is_region(inbox->buf)) {
2536 err = -EPERM;
2537 goto ex_abort;
2538 }
2539
2540
2541 pd = mr_get_pd(inbox->buf);
2542 pd_slave = (pd >> 17) & 0x7f;
2543 if (pd_slave != 0 && --pd_slave != slave) {
2544 err = -EPERM;
2545 goto ex_abort;
2546 }
2547
2548 if (mr_is_fmr(inbox->buf)) {
2549
2550 if (mr_is_bind_enabled(inbox->buf)) {
2551 err = -EPERM;
2552 goto ex_abort;
2553 }
2554
2555 if (!mr_is_region(inbox->buf)) {
2556 err = -EPERM;
2557 goto ex_abort;
2558 }
2559 }
2560
2561 phys = mr_phys_mpt(inbox->buf);
2562 if (!phys) {
2563 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt);
2564 if (err)
2565 goto ex_abort;
2566
2567 err = check_mtt_range(dev, slave, mtt_base,
2568 mr_get_mtt_size(inbox->buf), mtt);
2569 if (err)
2570 goto ex_put;
2571
2572 mpt->mtt = mtt;
2573 }
2574
2575 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
2576 if (err)
2577 goto ex_put;
2578
2579 if (!phys) {
2580 atomic_inc(&mtt->ref_count);
2581 put_res(dev, slave, mtt->com.res_id, RES_MTT);
2582 }
2583
2584 res_end_move(dev, slave, RES_MPT, id);
2585 return 0;
2586
2587ex_put:
2588 if (!phys)
2589 put_res(dev, slave, mtt->com.res_id, RES_MTT);
2590ex_abort:
2591 res_abort_move(dev, slave, RES_MPT, id);
2592
2593 return err;
2594}
2595
2596int mlx4_HW2SW_MPT_wrapper(struct mlx4_dev *dev, int slave,
2597 struct mlx4_vhcr *vhcr,
2598 struct mlx4_cmd_mailbox *inbox,
2599 struct mlx4_cmd_mailbox *outbox,
2600 struct mlx4_cmd_info *cmd)
2601{
2602 int err;
2603 int index = vhcr->in_modifier;
2604 struct res_mpt *mpt;
2605 int id;
2606
2607 id = index & mpt_mask(dev);
2608 err = mr_res_start_move_to(dev, slave, id, RES_MPT_MAPPED, &mpt);
2609 if (err)
2610 return err;
2611
2612 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
2613 if (err)
2614 goto ex_abort;
2615
2616 if (mpt->mtt)
2617 atomic_dec(&mpt->mtt->ref_count);
2618
2619 res_end_move(dev, slave, RES_MPT, id);
2620 return 0;
2621
2622ex_abort:
2623 res_abort_move(dev, slave, RES_MPT, id);
2624
2625 return err;
2626}
2627
2628int mlx4_QUERY_MPT_wrapper(struct mlx4_dev *dev, int slave,
2629 struct mlx4_vhcr *vhcr,
2630 struct mlx4_cmd_mailbox *inbox,
2631 struct mlx4_cmd_mailbox *outbox,
2632 struct mlx4_cmd_info *cmd)
2633{
2634 int err;
2635 int index = vhcr->in_modifier;
2636 struct res_mpt *mpt;
2637 int id;
2638
2639 id = index & mpt_mask(dev);
2640 err = get_res(dev, slave, id, RES_MPT, &mpt);
2641 if (err)
2642 return err;
2643
2644 if (mpt->com.from_state == RES_MPT_MAPPED) {
2645
2646
2647
2648
2649
2650
2651
2652
2653 struct mlx4_mpt_entry *mpt_entry = mlx4_table_find(
2654 &mlx4_priv(dev)->mr_table.dmpt_table,
2655 mpt->key, NULL);
2656
2657 if (NULL == mpt_entry || NULL == outbox->buf) {
2658 err = -EINVAL;
2659 goto out;
2660 }
2661
2662 memcpy(outbox->buf, mpt_entry, sizeof(*mpt_entry));
2663
2664 err = 0;
2665 } else if (mpt->com.from_state == RES_MPT_HW) {
2666 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
2667 } else {
2668 err = -EBUSY;
2669 goto out;
2670 }
2671
2672
2673out:
2674 put_res(dev, slave, id, RES_MPT);
2675 return err;
2676}
2677
2678static int qp_get_rcqn(struct mlx4_qp_context *qpc)
2679{
2680 return be32_to_cpu(qpc->cqn_recv) & 0xffffff;
2681}
2682
2683static int qp_get_scqn(struct mlx4_qp_context *qpc)
2684{
2685 return be32_to_cpu(qpc->cqn_send) & 0xffffff;
2686}
2687
2688static u32 qp_get_srqn(struct mlx4_qp_context *qpc)
2689{
2690 return be32_to_cpu(qpc->srqn) & 0x1ffffff;
2691}
2692
2693static void adjust_proxy_tun_qkey(struct mlx4_dev *dev, struct mlx4_vhcr *vhcr,
2694 struct mlx4_qp_context *context)
2695{
2696 u32 qpn = vhcr->in_modifier & 0xffffff;
2697 u32 qkey = 0;
2698
2699 if (mlx4_get_parav_qkey(dev, qpn, &qkey))
2700 return;
2701
2702
2703 context->qkey = cpu_to_be32(qkey);
2704}
2705
2706int mlx4_RST2INIT_QP_wrapper(struct mlx4_dev *dev, int slave,
2707 struct mlx4_vhcr *vhcr,
2708 struct mlx4_cmd_mailbox *inbox,
2709 struct mlx4_cmd_mailbox *outbox,
2710 struct mlx4_cmd_info *cmd)
2711{
2712 int err;
2713 int qpn = vhcr->in_modifier & 0x7fffff;
2714 struct res_mtt *mtt;
2715 struct res_qp *qp;
2716 struct mlx4_qp_context *qpc = inbox->buf + 8;
2717 int mtt_base = qp_get_mtt_addr(qpc) / dev->caps.mtt_entry_sz;
2718 int mtt_size = qp_get_mtt_size(qpc);
2719 struct res_cq *rcq;
2720 struct res_cq *scq;
2721 int rcqn = qp_get_rcqn(qpc);
2722 int scqn = qp_get_scqn(qpc);
2723 u32 srqn = qp_get_srqn(qpc) & 0xffffff;
2724 int use_srq = (qp_get_srqn(qpc) >> 24) & 1;
2725 struct res_srq *srq;
2726 int local_qpn = be32_to_cpu(qpc->local_qpn) & 0xffffff;
2727
2728 err = qp_res_start_move_to(dev, slave, qpn, RES_QP_HW, &qp, 0);
2729 if (err)
2730 return err;
2731 qp->local_qpn = local_qpn;
2732 qp->sched_queue = 0;
2733 qp->param3 = 0;
2734 qp->vlan_control = 0;
2735 qp->fvl_rx = 0;
2736 qp->pri_path_fl = 0;
2737 qp->vlan_index = 0;
2738 qp->feup = 0;
2739 qp->qpc_flags = be32_to_cpu(qpc->flags);
2740
2741 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt);
2742 if (err)
2743 goto ex_abort;
2744
2745 err = check_mtt_range(dev, slave, mtt_base, mtt_size, mtt);
2746 if (err)
2747 goto ex_put_mtt;
2748
2749 err = get_res(dev, slave, rcqn, RES_CQ, &rcq);
2750 if (err)
2751 goto ex_put_mtt;
2752
2753 if (scqn != rcqn) {
2754 err = get_res(dev, slave, scqn, RES_CQ, &scq);
2755 if (err)
2756 goto ex_put_rcq;
2757 } else
2758 scq = rcq;
2759
2760 if (use_srq) {
2761 err = get_res(dev, slave, srqn, RES_SRQ, &srq);
2762 if (err)
2763 goto ex_put_scq;
2764 }
2765
2766 adjust_proxy_tun_qkey(dev, vhcr, qpc);
2767 update_pkey_index(dev, slave, inbox);
2768 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
2769 if (err)
2770 goto ex_put_srq;
2771 atomic_inc(&mtt->ref_count);
2772 qp->mtt = mtt;
2773 atomic_inc(&rcq->ref_count);
2774 qp->rcq = rcq;
2775 atomic_inc(&scq->ref_count);
2776 qp->scq = scq;
2777
2778 if (scqn != rcqn)
2779 put_res(dev, slave, scqn, RES_CQ);
2780
2781 if (use_srq) {
2782 atomic_inc(&srq->ref_count);
2783 put_res(dev, slave, srqn, RES_SRQ);
2784 qp->srq = srq;
2785 }
2786 put_res(dev, slave, rcqn, RES_CQ);
2787 put_res(dev, slave, mtt_base, RES_MTT);
2788 res_end_move(dev, slave, RES_QP, qpn);
2789
2790 return 0;
2791
2792ex_put_srq:
2793 if (use_srq)
2794 put_res(dev, slave, srqn, RES_SRQ);
2795ex_put_scq:
2796 if (scqn != rcqn)
2797 put_res(dev, slave, scqn, RES_CQ);
2798ex_put_rcq:
2799 put_res(dev, slave, rcqn, RES_CQ);
2800ex_put_mtt:
2801 put_res(dev, slave, mtt_base, RES_MTT);
2802ex_abort:
2803 res_abort_move(dev, slave, RES_QP, qpn);
2804
2805 return err;
2806}
2807
2808static int eq_get_mtt_addr(struct mlx4_eq_context *eqc)
2809{
2810 return be32_to_cpu(eqc->mtt_base_addr_l) & 0xfffffff8;
2811}
2812
2813static int eq_get_mtt_size(struct mlx4_eq_context *eqc)
2814{
2815 int log_eq_size = eqc->log_eq_size & 0x1f;
2816 int page_shift = (eqc->log_page_size & 0x3f) + 12;
2817
2818 if (log_eq_size + 5 < page_shift)
2819 return 1;
2820
2821 return 1 << (log_eq_size + 5 - page_shift);
2822}
2823
2824static int cq_get_mtt_addr(struct mlx4_cq_context *cqc)
2825{
2826 return be32_to_cpu(cqc->mtt_base_addr_l) & 0xfffffff8;
2827}
2828
2829static int cq_get_mtt_size(struct mlx4_cq_context *cqc)
2830{
2831 int log_cq_size = (be32_to_cpu(cqc->logsize_usrpage) >> 24) & 0x1f;
2832 int page_shift = (cqc->log_page_size & 0x3f) + 12;
2833
2834 if (log_cq_size + 5 < page_shift)
2835 return 1;
2836
2837 return 1 << (log_cq_size + 5 - page_shift);
2838}
2839
2840int mlx4_SW2HW_EQ_wrapper(struct mlx4_dev *dev, int slave,
2841 struct mlx4_vhcr *vhcr,
2842 struct mlx4_cmd_mailbox *inbox,
2843 struct mlx4_cmd_mailbox *outbox,
2844 struct mlx4_cmd_info *cmd)
2845{
2846 int err;
2847 int eqn = vhcr->in_modifier;
2848 int res_id = (slave << 10) | eqn;
2849 struct mlx4_eq_context *eqc = inbox->buf;
2850 int mtt_base = eq_get_mtt_addr(eqc) / dev->caps.mtt_entry_sz;
2851 int mtt_size = eq_get_mtt_size(eqc);
2852 struct res_eq *eq;
2853 struct res_mtt *mtt;
2854
2855 err = add_res_range(dev, slave, res_id, 1, RES_EQ, 0);
2856 if (err)
2857 return err;
2858 err = eq_res_start_move_to(dev, slave, res_id, RES_EQ_HW, &eq);
2859 if (err)
2860 goto out_add;
2861
2862 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt);
2863 if (err)
2864 goto out_move;
2865
2866 err = check_mtt_range(dev, slave, mtt_base, mtt_size, mtt);
2867 if (err)
2868 goto out_put;
2869
2870 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
2871 if (err)
2872 goto out_put;
2873
2874 atomic_inc(&mtt->ref_count);
2875 eq->mtt = mtt;
2876 put_res(dev, slave, mtt->com.res_id, RES_MTT);
2877 res_end_move(dev, slave, RES_EQ, res_id);
2878 return 0;
2879
2880out_put:
2881 put_res(dev, slave, mtt->com.res_id, RES_MTT);
2882out_move:
2883 res_abort_move(dev, slave, RES_EQ, res_id);
2884out_add:
2885 rem_res_range(dev, slave, res_id, 1, RES_EQ, 0);
2886 return err;
2887}
2888
2889int mlx4_CONFIG_DEV_wrapper(struct mlx4_dev *dev, int slave,
2890 struct mlx4_vhcr *vhcr,
2891 struct mlx4_cmd_mailbox *inbox,
2892 struct mlx4_cmd_mailbox *outbox,
2893 struct mlx4_cmd_info *cmd)
2894{
2895 int err;
2896 u8 get = vhcr->op_modifier;
2897
2898 if (get != 1)
2899 return -EPERM;
2900
2901 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
2902
2903 return err;
2904}
2905
2906static int get_containing_mtt(struct mlx4_dev *dev, int slave, int start,
2907 int len, struct res_mtt **res)
2908{
2909 struct mlx4_priv *priv = mlx4_priv(dev);
2910 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
2911 struct res_mtt *mtt;
2912 int err = -EINVAL;
2913
2914 spin_lock_irq(mlx4_tlock(dev));
2915 list_for_each_entry(mtt, &tracker->slave_list[slave].res_list[RES_MTT],
2916 com.list) {
2917 if (!check_mtt_range(dev, slave, start, len, mtt)) {
2918 *res = mtt;
2919 mtt->com.from_state = mtt->com.state;
2920 mtt->com.state = RES_MTT_BUSY;
2921 err = 0;
2922 break;
2923 }
2924 }
2925 spin_unlock_irq(mlx4_tlock(dev));
2926
2927 return err;
2928}
2929
2930static int verify_qp_parameters(struct mlx4_dev *dev,
2931 struct mlx4_vhcr *vhcr,
2932 struct mlx4_cmd_mailbox *inbox,
2933 enum qp_transition transition, u8 slave)
2934{
2935 u32 qp_type;
2936 u32 qpn;
2937 struct mlx4_qp_context *qp_ctx;
2938 enum mlx4_qp_optpar optpar;
2939 int port;
2940 int num_gids;
2941
2942 qp_ctx = inbox->buf + 8;
2943 qp_type = (be32_to_cpu(qp_ctx->flags) >> 16) & 0xff;
2944 optpar = be32_to_cpu(*(__be32 *) inbox->buf);
2945
2946 if (slave != mlx4_master_func_num(dev)) {
2947 qp_ctx->params2 &= ~MLX4_QP_BIT_FPP;
2948
2949 if (qp_ctx->rate_limit_params)
2950 return -EPERM;
2951 }
2952
2953 switch (qp_type) {
2954 case MLX4_QP_ST_RC:
2955 case MLX4_QP_ST_XRC:
2956 case MLX4_QP_ST_UC:
2957 switch (transition) {
2958 case QP_TRANS_INIT2RTR:
2959 case QP_TRANS_RTR2RTS:
2960 case QP_TRANS_RTS2RTS:
2961 case QP_TRANS_SQD2SQD:
2962 case QP_TRANS_SQD2RTS:
2963 if (slave != mlx4_master_func_num(dev))
2964 if (optpar & MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH) {
2965 port = (qp_ctx->pri_path.sched_queue >> 6 & 1) + 1;
2966 if (dev->caps.port_mask[port] != MLX4_PORT_TYPE_IB)
2967 num_gids = mlx4_get_slave_num_gids(dev, slave, port);
2968 else
2969 num_gids = 1;
2970 if (qp_ctx->pri_path.mgid_index >= num_gids)
2971 return -EINVAL;
2972 }
2973 if (optpar & MLX4_QP_OPTPAR_ALT_ADDR_PATH) {
2974 port = (qp_ctx->alt_path.sched_queue >> 6 & 1) + 1;
2975 if (dev->caps.port_mask[port] != MLX4_PORT_TYPE_IB)
2976 num_gids = mlx4_get_slave_num_gids(dev, slave, port);
2977 else
2978 num_gids = 1;
2979 if (qp_ctx->alt_path.mgid_index >= num_gids)
2980 return -EINVAL;
2981 }
2982 break;
2983 default:
2984 break;
2985 }
2986 break;
2987
2988 case MLX4_QP_ST_MLX:
2989 qpn = vhcr->in_modifier & 0x7fffff;
2990 port = (qp_ctx->pri_path.sched_queue >> 6 & 1) + 1;
2991 if (transition == QP_TRANS_INIT2RTR &&
2992 slave != mlx4_master_func_num(dev) &&
2993 mlx4_is_qp_reserved(dev, qpn) &&
2994 !mlx4_vf_smi_enabled(dev, slave, port)) {
2995
2996 mlx4_err(dev, "%s: unprivileged slave %d attempting to create an MLX proxy special QP on port %d\n",
2997 __func__, slave, port);
2998 return -EPERM;
2999 }
3000 break;
3001
3002 default:
3003 break;
3004 }
3005
3006 return 0;
3007}
3008
3009int mlx4_WRITE_MTT_wrapper(struct mlx4_dev *dev, int slave,
3010 struct mlx4_vhcr *vhcr,
3011 struct mlx4_cmd_mailbox *inbox,
3012 struct mlx4_cmd_mailbox *outbox,
3013 struct mlx4_cmd_info *cmd)
3014{
3015 struct mlx4_mtt mtt;
3016 __be64 *page_list = inbox->buf;
3017 u64 *pg_list = (u64 *)page_list;
3018 int i;
3019 struct res_mtt *rmtt = NULL;
3020 int start = be64_to_cpu(page_list[0]);
3021 int npages = vhcr->in_modifier;
3022 int err;
3023
3024 err = get_containing_mtt(dev, slave, start, npages, &rmtt);
3025 if (err)
3026 return err;
3027
3028
3029
3030
3031 mtt.offset = 0;
3032
3033 mtt.order = 0;
3034 mtt.page_shift = 0;
3035 for (i = 0; i < npages; ++i)
3036 pg_list[i + 2] = (be64_to_cpu(page_list[i + 2]) & ~1ULL);
3037
3038 err = __mlx4_write_mtt(dev, &mtt, be64_to_cpu(page_list[0]), npages,
3039 ((u64 *)page_list + 2));
3040
3041 if (rmtt)
3042 put_res(dev, slave, rmtt->com.res_id, RES_MTT);
3043
3044 return err;
3045}
3046
3047int mlx4_HW2SW_EQ_wrapper(struct mlx4_dev *dev, int slave,
3048 struct mlx4_vhcr *vhcr,
3049 struct mlx4_cmd_mailbox *inbox,
3050 struct mlx4_cmd_mailbox *outbox,
3051 struct mlx4_cmd_info *cmd)
3052{
3053 int eqn = vhcr->in_modifier;
3054 int res_id = eqn | (slave << 10);
3055 struct res_eq *eq;
3056 int err;
3057
3058 err = eq_res_start_move_to(dev, slave, res_id, RES_EQ_RESERVED, &eq);
3059 if (err)
3060 return err;
3061
3062 err = get_res(dev, slave, eq->mtt->com.res_id, RES_MTT, NULL);
3063 if (err)
3064 goto ex_abort;
3065
3066 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3067 if (err)
3068 goto ex_put;
3069
3070 atomic_dec(&eq->mtt->ref_count);
3071 put_res(dev, slave, eq->mtt->com.res_id, RES_MTT);
3072 res_end_move(dev, slave, RES_EQ, res_id);
3073 rem_res_range(dev, slave, res_id, 1, RES_EQ, 0);
3074
3075 return 0;
3076
3077ex_put:
3078 put_res(dev, slave, eq->mtt->com.res_id, RES_MTT);
3079ex_abort:
3080 res_abort_move(dev, slave, RES_EQ, res_id);
3081
3082 return err;
3083}
3084
3085int mlx4_GEN_EQE(struct mlx4_dev *dev, int slave, struct mlx4_eqe *eqe)
3086{
3087 struct mlx4_priv *priv = mlx4_priv(dev);
3088 struct mlx4_slave_event_eq_info *event_eq;
3089 struct mlx4_cmd_mailbox *mailbox;
3090 u32 in_modifier = 0;
3091 int err;
3092 int res_id;
3093 struct res_eq *req;
3094
3095 if (!priv->mfunc.master.slave_state)
3096 return -EINVAL;
3097
3098
3099 if (slave < 0 || slave > dev->persist->num_vfs ||
3100 slave == dev->caps.function ||
3101 !priv->mfunc.master.slave_state[slave].active)
3102 return 0;
3103
3104 event_eq = &priv->mfunc.master.slave_state[slave].event_eq[eqe->type];
3105
3106
3107 if (event_eq->eqn < 0)
3108 return 0;
3109
3110 mutex_lock(&priv->mfunc.master.gen_eqe_mutex[slave]);
3111 res_id = (slave << 10) | event_eq->eqn;
3112 err = get_res(dev, slave, res_id, RES_EQ, &req);
3113 if (err)
3114 goto unlock;
3115
3116 if (req->com.from_state != RES_EQ_HW) {
3117 err = -EINVAL;
3118 goto put;
3119 }
3120
3121 mailbox = mlx4_alloc_cmd_mailbox(dev);
3122 if (IS_ERR(mailbox)) {
3123 err = PTR_ERR(mailbox);
3124 goto put;
3125 }
3126
3127 if (eqe->type == MLX4_EVENT_TYPE_CMD) {
3128 ++event_eq->token;
3129 eqe->event.cmd.token = cpu_to_be16(event_eq->token);
3130 }
3131
3132 memcpy(mailbox->buf, (u8 *) eqe, 28);
3133
3134 in_modifier = (slave & 0xff) | ((event_eq->eqn & 0x3ff) << 16);
3135
3136 err = mlx4_cmd(dev, mailbox->dma, in_modifier, 0,
3137 MLX4_CMD_GEN_EQE, MLX4_CMD_TIME_CLASS_B,
3138 MLX4_CMD_NATIVE);
3139
3140 put_res(dev, slave, res_id, RES_EQ);
3141 mutex_unlock(&priv->mfunc.master.gen_eqe_mutex[slave]);
3142 mlx4_free_cmd_mailbox(dev, mailbox);
3143 return err;
3144
3145put:
3146 put_res(dev, slave, res_id, RES_EQ);
3147
3148unlock:
3149 mutex_unlock(&priv->mfunc.master.gen_eqe_mutex[slave]);
3150 return err;
3151}
3152
3153int mlx4_QUERY_EQ_wrapper(struct mlx4_dev *dev, int slave,
3154 struct mlx4_vhcr *vhcr,
3155 struct mlx4_cmd_mailbox *inbox,
3156 struct mlx4_cmd_mailbox *outbox,
3157 struct mlx4_cmd_info *cmd)
3158{
3159 int eqn = vhcr->in_modifier;
3160 int res_id = eqn | (slave << 10);
3161 struct res_eq *eq;
3162 int err;
3163
3164 err = get_res(dev, slave, res_id, RES_EQ, &eq);
3165 if (err)
3166 return err;
3167
3168 if (eq->com.from_state != RES_EQ_HW) {
3169 err = -EINVAL;
3170 goto ex_put;
3171 }
3172
3173 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3174
3175ex_put:
3176 put_res(dev, slave, res_id, RES_EQ);
3177 return err;
3178}
3179
3180int mlx4_SW2HW_CQ_wrapper(struct mlx4_dev *dev, int slave,
3181 struct mlx4_vhcr *vhcr,
3182 struct mlx4_cmd_mailbox *inbox,
3183 struct mlx4_cmd_mailbox *outbox,
3184 struct mlx4_cmd_info *cmd)
3185{
3186 int err;
3187 int cqn = vhcr->in_modifier;
3188 struct mlx4_cq_context *cqc = inbox->buf;
3189 int mtt_base = cq_get_mtt_addr(cqc) / dev->caps.mtt_entry_sz;
3190 struct res_cq *cq = NULL;
3191 struct res_mtt *mtt;
3192
3193 err = cq_res_start_move_to(dev, slave, cqn, RES_CQ_HW, &cq);
3194 if (err)
3195 return err;
3196 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt);
3197 if (err)
3198 goto out_move;
3199 err = check_mtt_range(dev, slave, mtt_base, cq_get_mtt_size(cqc), mtt);
3200 if (err)
3201 goto out_put;
3202 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3203 if (err)
3204 goto out_put;
3205 atomic_inc(&mtt->ref_count);
3206 cq->mtt = mtt;
3207 put_res(dev, slave, mtt->com.res_id, RES_MTT);
3208 res_end_move(dev, slave, RES_CQ, cqn);
3209 return 0;
3210
3211out_put:
3212 put_res(dev, slave, mtt->com.res_id, RES_MTT);
3213out_move:
3214 res_abort_move(dev, slave, RES_CQ, cqn);
3215 return err;
3216}
3217
3218int mlx4_HW2SW_CQ_wrapper(struct mlx4_dev *dev, int slave,
3219 struct mlx4_vhcr *vhcr,
3220 struct mlx4_cmd_mailbox *inbox,
3221 struct mlx4_cmd_mailbox *outbox,
3222 struct mlx4_cmd_info *cmd)
3223{
3224 int err;
3225 int cqn = vhcr->in_modifier;
3226 struct res_cq *cq = NULL;
3227
3228 err = cq_res_start_move_to(dev, slave, cqn, RES_CQ_ALLOCATED, &cq);
3229 if (err)
3230 return err;
3231 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3232 if (err)
3233 goto out_move;
3234 atomic_dec(&cq->mtt->ref_count);
3235 res_end_move(dev, slave, RES_CQ, cqn);
3236 return 0;
3237
3238out_move:
3239 res_abort_move(dev, slave, RES_CQ, cqn);
3240 return err;
3241}
3242
3243int mlx4_QUERY_CQ_wrapper(struct mlx4_dev *dev, int slave,
3244 struct mlx4_vhcr *vhcr,
3245 struct mlx4_cmd_mailbox *inbox,
3246 struct mlx4_cmd_mailbox *outbox,
3247 struct mlx4_cmd_info *cmd)
3248{
3249 int cqn = vhcr->in_modifier;
3250 struct res_cq *cq;
3251 int err;
3252
3253 err = get_res(dev, slave, cqn, RES_CQ, &cq);
3254 if (err)
3255 return err;
3256
3257 if (cq->com.from_state != RES_CQ_HW)
3258 goto ex_put;
3259
3260 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3261ex_put:
3262 put_res(dev, slave, cqn, RES_CQ);
3263
3264 return err;
3265}
3266
3267static int handle_resize(struct mlx4_dev *dev, int slave,
3268 struct mlx4_vhcr *vhcr,
3269 struct mlx4_cmd_mailbox *inbox,
3270 struct mlx4_cmd_mailbox *outbox,
3271 struct mlx4_cmd_info *cmd,
3272 struct res_cq *cq)
3273{
3274 int err;
3275 struct res_mtt *orig_mtt;
3276 struct res_mtt *mtt;
3277 struct mlx4_cq_context *cqc = inbox->buf;
3278 int mtt_base = cq_get_mtt_addr(cqc) / dev->caps.mtt_entry_sz;
3279
3280 err = get_res(dev, slave, cq->mtt->com.res_id, RES_MTT, &orig_mtt);
3281 if (err)
3282 return err;
3283
3284 if (orig_mtt != cq->mtt) {
3285 err = -EINVAL;
3286 goto ex_put;
3287 }
3288
3289 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt);
3290 if (err)
3291 goto ex_put;
3292
3293 err = check_mtt_range(dev, slave, mtt_base, cq_get_mtt_size(cqc), mtt);
3294 if (err)
3295 goto ex_put1;
3296 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3297 if (err)
3298 goto ex_put1;
3299 atomic_dec(&orig_mtt->ref_count);
3300 put_res(dev, slave, orig_mtt->com.res_id, RES_MTT);
3301 atomic_inc(&mtt->ref_count);
3302 cq->mtt = mtt;
3303 put_res(dev, slave, mtt->com.res_id, RES_MTT);
3304 return 0;
3305
3306ex_put1:
3307 put_res(dev, slave, mtt->com.res_id, RES_MTT);
3308ex_put:
3309 put_res(dev, slave, orig_mtt->com.res_id, RES_MTT);
3310
3311 return err;
3312
3313}
3314
3315int mlx4_MODIFY_CQ_wrapper(struct mlx4_dev *dev, int slave,
3316 struct mlx4_vhcr *vhcr,
3317 struct mlx4_cmd_mailbox *inbox,
3318 struct mlx4_cmd_mailbox *outbox,
3319 struct mlx4_cmd_info *cmd)
3320{
3321 int cqn = vhcr->in_modifier;
3322 struct res_cq *cq;
3323 int err;
3324
3325 err = get_res(dev, slave, cqn, RES_CQ, &cq);
3326 if (err)
3327 return err;
3328
3329 if (cq->com.from_state != RES_CQ_HW)
3330 goto ex_put;
3331
3332 if (vhcr->op_modifier == 0) {
3333 err = handle_resize(dev, slave, vhcr, inbox, outbox, cmd, cq);
3334 goto ex_put;
3335 }
3336
3337 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3338ex_put:
3339 put_res(dev, slave, cqn, RES_CQ);
3340
3341 return err;
3342}
3343
3344static int srq_get_mtt_size(struct mlx4_srq_context *srqc)
3345{
3346 int log_srq_size = (be32_to_cpu(srqc->state_logsize_srqn) >> 24) & 0xf;
3347 int log_rq_stride = srqc->logstride & 7;
3348 int page_shift = (srqc->log_page_size & 0x3f) + 12;
3349
3350 if (log_srq_size + log_rq_stride + 4 < page_shift)
3351 return 1;
3352
3353 return 1 << (log_srq_size + log_rq_stride + 4 - page_shift);
3354}
3355
3356int mlx4_SW2HW_SRQ_wrapper(struct mlx4_dev *dev, int slave,
3357 struct mlx4_vhcr *vhcr,
3358 struct mlx4_cmd_mailbox *inbox,
3359 struct mlx4_cmd_mailbox *outbox,
3360 struct mlx4_cmd_info *cmd)
3361{
3362 int err;
3363 int srqn = vhcr->in_modifier;
3364 struct res_mtt *mtt;
3365 struct res_srq *srq = NULL;
3366 struct mlx4_srq_context *srqc = inbox->buf;
3367 int mtt_base = srq_get_mtt_addr(srqc) / dev->caps.mtt_entry_sz;
3368
3369 if (srqn != (be32_to_cpu(srqc->state_logsize_srqn) & 0xffffff))
3370 return -EINVAL;
3371
3372 err = srq_res_start_move_to(dev, slave, srqn, RES_SRQ_HW, &srq);
3373 if (err)
3374 return err;
3375 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt);
3376 if (err)
3377 goto ex_abort;
3378 err = check_mtt_range(dev, slave, mtt_base, srq_get_mtt_size(srqc),
3379 mtt);
3380 if (err)
3381 goto ex_put_mtt;
3382
3383 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3384 if (err)
3385 goto ex_put_mtt;
3386
3387 atomic_inc(&mtt->ref_count);
3388 srq->mtt = mtt;
3389 put_res(dev, slave, mtt->com.res_id, RES_MTT);
3390 res_end_move(dev, slave, RES_SRQ, srqn);
3391 return 0;
3392
3393ex_put_mtt:
3394 put_res(dev, slave, mtt->com.res_id, RES_MTT);
3395ex_abort:
3396 res_abort_move(dev, slave, RES_SRQ, srqn);
3397
3398 return err;
3399}
3400
3401int mlx4_HW2SW_SRQ_wrapper(struct mlx4_dev *dev, int slave,
3402 struct mlx4_vhcr *vhcr,
3403 struct mlx4_cmd_mailbox *inbox,
3404 struct mlx4_cmd_mailbox *outbox,
3405 struct mlx4_cmd_info *cmd)
3406{
3407 int err;
3408 int srqn = vhcr->in_modifier;
3409 struct res_srq *srq = NULL;
3410
3411 err = srq_res_start_move_to(dev, slave, srqn, RES_SRQ_ALLOCATED, &srq);
3412 if (err)
3413 return err;
3414 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3415 if (err)
3416 goto ex_abort;
3417 atomic_dec(&srq->mtt->ref_count);
3418 if (srq->cq)
3419 atomic_dec(&srq->cq->ref_count);
3420 res_end_move(dev, slave, RES_SRQ, srqn);
3421
3422 return 0;
3423
3424ex_abort:
3425 res_abort_move(dev, slave, RES_SRQ, srqn);
3426
3427 return err;
3428}
3429
3430int mlx4_QUERY_SRQ_wrapper(struct mlx4_dev *dev, int slave,
3431 struct mlx4_vhcr *vhcr,
3432 struct mlx4_cmd_mailbox *inbox,
3433 struct mlx4_cmd_mailbox *outbox,
3434 struct mlx4_cmd_info *cmd)
3435{
3436 int err;
3437 int srqn = vhcr->in_modifier;
3438 struct res_srq *srq;
3439
3440 err = get_res(dev, slave, srqn, RES_SRQ, &srq);
3441 if (err)
3442 return err;
3443 if (srq->com.from_state != RES_SRQ_HW) {
3444 err = -EBUSY;
3445 goto out;
3446 }
3447 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3448out:
3449 put_res(dev, slave, srqn, RES_SRQ);
3450 return err;
3451}
3452
3453int mlx4_ARM_SRQ_wrapper(struct mlx4_dev *dev, int slave,
3454 struct mlx4_vhcr *vhcr,
3455 struct mlx4_cmd_mailbox *inbox,
3456 struct mlx4_cmd_mailbox *outbox,
3457 struct mlx4_cmd_info *cmd)
3458{
3459 int err;
3460 int srqn = vhcr->in_modifier;
3461 struct res_srq *srq;
3462
3463 err = get_res(dev, slave, srqn, RES_SRQ, &srq);
3464 if (err)
3465 return err;
3466
3467 if (srq->com.from_state != RES_SRQ_HW) {
3468 err = -EBUSY;
3469 goto out;
3470 }
3471
3472 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3473out:
3474 put_res(dev, slave, srqn, RES_SRQ);
3475 return err;
3476}
3477
3478int mlx4_GEN_QP_wrapper(struct mlx4_dev *dev, int slave,
3479 struct mlx4_vhcr *vhcr,
3480 struct mlx4_cmd_mailbox *inbox,
3481 struct mlx4_cmd_mailbox *outbox,
3482 struct mlx4_cmd_info *cmd)
3483{
3484 int err;
3485 int qpn = vhcr->in_modifier & 0x7fffff;
3486 struct res_qp *qp;
3487
3488 err = get_res(dev, slave, qpn, RES_QP, &qp);
3489 if (err)
3490 return err;
3491 if (qp->com.from_state != RES_QP_HW) {
3492 err = -EBUSY;
3493 goto out;
3494 }
3495
3496 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3497out:
3498 put_res(dev, slave, qpn, RES_QP);
3499 return err;
3500}
3501
3502int mlx4_INIT2INIT_QP_wrapper(struct mlx4_dev *dev, int slave,
3503 struct mlx4_vhcr *vhcr,
3504 struct mlx4_cmd_mailbox *inbox,
3505 struct mlx4_cmd_mailbox *outbox,
3506 struct mlx4_cmd_info *cmd)
3507{
3508 struct mlx4_qp_context *context = inbox->buf + 8;
3509 adjust_proxy_tun_qkey(dev, vhcr, context);
3510 update_pkey_index(dev, slave, inbox);
3511 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3512}
3513
3514static int adjust_qp_sched_queue(struct mlx4_dev *dev, int slave,
3515 struct mlx4_qp_context *qpc,
3516 struct mlx4_cmd_mailbox *inbox)
3517{
3518 enum mlx4_qp_optpar optpar = be32_to_cpu(*(__be32 *)inbox->buf);
3519 u8 pri_sched_queue;
3520 int port = mlx4_slave_convert_port(
3521 dev, slave, (qpc->pri_path.sched_queue >> 6 & 1) + 1) - 1;
3522
3523 if (port < 0)
3524 return -EINVAL;
3525
3526 pri_sched_queue = (qpc->pri_path.sched_queue & ~(1 << 6)) |
3527 ((port & 1) << 6);
3528
3529 if (optpar & MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH ||
3530 mlx4_is_eth(dev, port + 1)) {
3531 qpc->pri_path.sched_queue = pri_sched_queue;
3532 }
3533
3534 if (optpar & MLX4_QP_OPTPAR_ALT_ADDR_PATH) {
3535 port = mlx4_slave_convert_port(
3536 dev, slave, (qpc->alt_path.sched_queue >> 6 & 1)
3537 + 1) - 1;
3538 if (port < 0)
3539 return -EINVAL;
3540 qpc->alt_path.sched_queue =
3541 (qpc->alt_path.sched_queue & ~(1 << 6)) |
3542 (port & 1) << 6;
3543 }
3544 return 0;
3545}
3546
3547static int roce_verify_mac(struct mlx4_dev *dev, int slave,
3548 struct mlx4_qp_context *qpc,
3549 struct mlx4_cmd_mailbox *inbox)
3550{
3551 u64 mac;
3552 int port;
3553 u32 ts = (be32_to_cpu(qpc->flags) >> 16) & 0xff;
3554 u8 sched = *(u8 *)(inbox->buf + 64);
3555 u8 smac_ix;
3556
3557 port = (sched >> 6 & 1) + 1;
3558 if (mlx4_is_eth(dev, port) && (ts != MLX4_QP_ST_MLX)) {
3559 smac_ix = qpc->pri_path.grh_mylmc & 0x7f;
3560 if (mac_find_smac_ix_in_slave(dev, slave, port, smac_ix, &mac))
3561 return -ENOENT;
3562 }
3563 return 0;
3564}
3565
3566int mlx4_INIT2RTR_QP_wrapper(struct mlx4_dev *dev, int slave,
3567 struct mlx4_vhcr *vhcr,
3568 struct mlx4_cmd_mailbox *inbox,
3569 struct mlx4_cmd_mailbox *outbox,
3570 struct mlx4_cmd_info *cmd)
3571{
3572 int err;
3573 struct mlx4_qp_context *qpc = inbox->buf + 8;
3574 int qpn = vhcr->in_modifier & 0x7fffff;
3575 struct res_qp *qp;
3576 u8 orig_sched_queue;
3577 __be32 orig_param3 = qpc->param3;
3578 u8 orig_vlan_control = qpc->pri_path.vlan_control;
3579 u8 orig_fvl_rx = qpc->pri_path.fvl_rx;
3580 u8 orig_pri_path_fl = qpc->pri_path.fl;
3581 u8 orig_vlan_index = qpc->pri_path.vlan_index;
3582 u8 orig_feup = qpc->pri_path.feup;
3583
3584 err = adjust_qp_sched_queue(dev, slave, qpc, inbox);
3585 if (err)
3586 return err;
3587 err = verify_qp_parameters(dev, vhcr, inbox, QP_TRANS_INIT2RTR, slave);
3588 if (err)
3589 return err;
3590
3591 if (roce_verify_mac(dev, slave, qpc, inbox))
3592 return -EINVAL;
3593
3594 update_pkey_index(dev, slave, inbox);
3595 update_gid(dev, inbox, (u8)slave);
3596 adjust_proxy_tun_qkey(dev, vhcr, qpc);
3597 orig_sched_queue = qpc->pri_path.sched_queue;
3598 err = update_vport_qp_param(dev, inbox, slave, qpn);
3599 if (err)
3600 return err;
3601
3602 err = get_res(dev, slave, qpn, RES_QP, &qp);
3603 if (err)
3604 return err;
3605 if (qp->com.from_state != RES_QP_HW) {
3606 err = -EBUSY;
3607 goto out;
3608 }
3609
3610 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3611out:
3612
3613
3614
3615
3616 if (!err) {
3617 qp->sched_queue = orig_sched_queue;
3618 qp->param3 = orig_param3;
3619 qp->vlan_control = orig_vlan_control;
3620 qp->fvl_rx = orig_fvl_rx;
3621 qp->pri_path_fl = orig_pri_path_fl;
3622 qp->vlan_index = orig_vlan_index;
3623 qp->feup = orig_feup;
3624 }
3625 put_res(dev, slave, qpn, RES_QP);
3626 return err;
3627}
3628
3629int mlx4_RTR2RTS_QP_wrapper(struct mlx4_dev *dev, int slave,
3630 struct mlx4_vhcr *vhcr,
3631 struct mlx4_cmd_mailbox *inbox,
3632 struct mlx4_cmd_mailbox *outbox,
3633 struct mlx4_cmd_info *cmd)
3634{
3635 int err;
3636 struct mlx4_qp_context *context = inbox->buf + 8;
3637
3638 err = adjust_qp_sched_queue(dev, slave, context, inbox);
3639 if (err)
3640 return err;
3641 err = verify_qp_parameters(dev, vhcr, inbox, QP_TRANS_RTR2RTS, slave);
3642 if (err)
3643 return err;
3644
3645 update_pkey_index(dev, slave, inbox);
3646 update_gid(dev, inbox, (u8)slave);
3647 adjust_proxy_tun_qkey(dev, vhcr, context);
3648 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3649}
3650
3651int mlx4_RTS2RTS_QP_wrapper(struct mlx4_dev *dev, int slave,
3652 struct mlx4_vhcr *vhcr,
3653 struct mlx4_cmd_mailbox *inbox,
3654 struct mlx4_cmd_mailbox *outbox,
3655 struct mlx4_cmd_info *cmd)
3656{
3657 int err;
3658 struct mlx4_qp_context *context = inbox->buf + 8;
3659
3660 err = adjust_qp_sched_queue(dev, slave, context, inbox);
3661 if (err)
3662 return err;
3663 err = verify_qp_parameters(dev, vhcr, inbox, QP_TRANS_RTS2RTS, slave);
3664 if (err)
3665 return err;
3666
3667 update_pkey_index(dev, slave, inbox);
3668 update_gid(dev, inbox, (u8)slave);
3669 adjust_proxy_tun_qkey(dev, vhcr, context);
3670 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3671}
3672
3673
3674int mlx4_SQERR2RTS_QP_wrapper(struct mlx4_dev *dev, int slave,
3675 struct mlx4_vhcr *vhcr,
3676 struct mlx4_cmd_mailbox *inbox,
3677 struct mlx4_cmd_mailbox *outbox,
3678 struct mlx4_cmd_info *cmd)
3679{
3680 struct mlx4_qp_context *context = inbox->buf + 8;
3681 int err = adjust_qp_sched_queue(dev, slave, context, inbox);
3682 if (err)
3683 return err;
3684 adjust_proxy_tun_qkey(dev, vhcr, context);
3685 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3686}
3687
3688int mlx4_SQD2SQD_QP_wrapper(struct mlx4_dev *dev, int slave,
3689 struct mlx4_vhcr *vhcr,
3690 struct mlx4_cmd_mailbox *inbox,
3691 struct mlx4_cmd_mailbox *outbox,
3692 struct mlx4_cmd_info *cmd)
3693{
3694 int err;
3695 struct mlx4_qp_context *context = inbox->buf + 8;
3696
3697 err = adjust_qp_sched_queue(dev, slave, context, inbox);
3698 if (err)
3699 return err;
3700 err = verify_qp_parameters(dev, vhcr, inbox, QP_TRANS_SQD2SQD, slave);
3701 if (err)
3702 return err;
3703
3704 adjust_proxy_tun_qkey(dev, vhcr, context);
3705 update_gid(dev, inbox, (u8)slave);
3706 update_pkey_index(dev, slave, inbox);
3707 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3708}
3709
3710int mlx4_SQD2RTS_QP_wrapper(struct mlx4_dev *dev, int slave,
3711 struct mlx4_vhcr *vhcr,
3712 struct mlx4_cmd_mailbox *inbox,
3713 struct mlx4_cmd_mailbox *outbox,
3714 struct mlx4_cmd_info *cmd)
3715{
3716 int err;
3717 struct mlx4_qp_context *context = inbox->buf + 8;
3718
3719 err = adjust_qp_sched_queue(dev, slave, context, inbox);
3720 if (err)
3721 return err;
3722 err = verify_qp_parameters(dev, vhcr, inbox, QP_TRANS_SQD2RTS, slave);
3723 if (err)
3724 return err;
3725
3726 adjust_proxy_tun_qkey(dev, vhcr, context);
3727 update_gid(dev, inbox, (u8)slave);
3728 update_pkey_index(dev, slave, inbox);
3729 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3730}
3731
3732int mlx4_2RST_QP_wrapper(struct mlx4_dev *dev, int slave,
3733 struct mlx4_vhcr *vhcr,
3734 struct mlx4_cmd_mailbox *inbox,
3735 struct mlx4_cmd_mailbox *outbox,
3736 struct mlx4_cmd_info *cmd)
3737{
3738 int err;
3739 int qpn = vhcr->in_modifier & 0x7fffff;
3740 struct res_qp *qp;
3741
3742 err = qp_res_start_move_to(dev, slave, qpn, RES_QP_MAPPED, &qp, 0);
3743 if (err)
3744 return err;
3745 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
3746 if (err)
3747 goto ex_abort;
3748
3749 atomic_dec(&qp->mtt->ref_count);
3750 atomic_dec(&qp->rcq->ref_count);
3751 atomic_dec(&qp->scq->ref_count);
3752 if (qp->srq)
3753 atomic_dec(&qp->srq->ref_count);
3754 res_end_move(dev, slave, RES_QP, qpn);
3755 return 0;
3756
3757ex_abort:
3758 res_abort_move(dev, slave, RES_QP, qpn);
3759
3760 return err;
3761}
3762
3763static struct res_gid *find_gid(struct mlx4_dev *dev, int slave,
3764 struct res_qp *rqp, u8 *gid)
3765{
3766 struct res_gid *res;
3767
3768 list_for_each_entry(res, &rqp->mcg_list, list) {
3769 if (!memcmp(res->gid, gid, 16))
3770 return res;
3771 }
3772 return NULL;
3773}
3774
3775static int add_mcg_res(struct mlx4_dev *dev, int slave, struct res_qp *rqp,
3776 u8 *gid, enum mlx4_protocol prot,
3777 enum mlx4_steer_type steer, u64 reg_id)
3778{
3779 struct res_gid *res;
3780 int err;
3781
3782 res = kzalloc(sizeof *res, GFP_KERNEL);
3783 if (!res)
3784 return -ENOMEM;
3785
3786 spin_lock_irq(&rqp->mcg_spl);
3787 if (find_gid(dev, slave, rqp, gid)) {
3788 kfree(res);
3789 err = -EEXIST;
3790 } else {
3791 memcpy(res->gid, gid, 16);
3792 res->prot = prot;
3793 res->steer = steer;
3794 res->reg_id = reg_id;
3795 list_add_tail(&res->list, &rqp->mcg_list);
3796 err = 0;
3797 }
3798 spin_unlock_irq(&rqp->mcg_spl);
3799
3800 return err;
3801}
3802
3803static int rem_mcg_res(struct mlx4_dev *dev, int slave, struct res_qp *rqp,
3804 u8 *gid, enum mlx4_protocol prot,
3805 enum mlx4_steer_type steer, u64 *reg_id)
3806{
3807 struct res_gid *res;
3808 int err;
3809
3810 spin_lock_irq(&rqp->mcg_spl);
3811 res = find_gid(dev, slave, rqp, gid);
3812 if (!res || res->prot != prot || res->steer != steer)
3813 err = -EINVAL;
3814 else {
3815 *reg_id = res->reg_id;
3816 list_del(&res->list);
3817 kfree(res);
3818 err = 0;
3819 }
3820 spin_unlock_irq(&rqp->mcg_spl);
3821
3822 return err;
3823}
3824
3825static int qp_attach(struct mlx4_dev *dev, int slave, struct mlx4_qp *qp,
3826 u8 gid[16], int block_loopback, enum mlx4_protocol prot,
3827 enum mlx4_steer_type type, u64 *reg_id)
3828{
3829 switch (dev->caps.steering_mode) {
3830 case MLX4_STEERING_MODE_DEVICE_MANAGED: {
3831 int port = mlx4_slave_convert_port(dev, slave, gid[5]);
3832 if (port < 0)
3833 return port;
3834 return mlx4_trans_to_dmfs_attach(dev, qp, gid, port,
3835 block_loopback, prot,
3836 reg_id);
3837 }
3838 case MLX4_STEERING_MODE_B0:
3839 if (prot == MLX4_PROT_ETH) {
3840 int port = mlx4_slave_convert_port(dev, slave, gid[5]);
3841 if (port < 0)
3842 return port;
3843 gid[5] = port;
3844 }
3845 return mlx4_qp_attach_common(dev, qp, gid,
3846 block_loopback, prot, type);
3847 default:
3848 return -EINVAL;
3849 }
3850}
3851
3852static int qp_detach(struct mlx4_dev *dev, struct mlx4_qp *qp,
3853 u8 gid[16], enum mlx4_protocol prot,
3854 enum mlx4_steer_type type, u64 reg_id)
3855{
3856 switch (dev->caps.steering_mode) {
3857 case MLX4_STEERING_MODE_DEVICE_MANAGED:
3858 return mlx4_flow_detach(dev, reg_id);
3859 case MLX4_STEERING_MODE_B0:
3860 return mlx4_qp_detach_common(dev, qp, gid, prot, type);
3861 default:
3862 return -EINVAL;
3863 }
3864}
3865
3866static int mlx4_adjust_port(struct mlx4_dev *dev, int slave,
3867 u8 *gid, enum mlx4_protocol prot)
3868{
3869 int real_port;
3870
3871 if (prot != MLX4_PROT_ETH)
3872 return 0;
3873
3874 if (dev->caps.steering_mode == MLX4_STEERING_MODE_B0 ||
3875 dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) {
3876 real_port = mlx4_slave_convert_port(dev, slave, gid[5]);
3877 if (real_port < 0)
3878 return -EINVAL;
3879 gid[5] = real_port;
3880 }
3881
3882 return 0;
3883}
3884
3885int mlx4_QP_ATTACH_wrapper(struct mlx4_dev *dev, int slave,
3886 struct mlx4_vhcr *vhcr,
3887 struct mlx4_cmd_mailbox *inbox,
3888 struct mlx4_cmd_mailbox *outbox,
3889 struct mlx4_cmd_info *cmd)
3890{
3891 struct mlx4_qp qp;
3892 u8 *gid = inbox->buf;
3893 enum mlx4_protocol prot = (vhcr->in_modifier >> 28) & 0x7;
3894 int err;
3895 int qpn;
3896 struct res_qp *rqp;
3897 u64 reg_id = 0;
3898 int attach = vhcr->op_modifier;
3899 int block_loopback = vhcr->in_modifier >> 31;
3900 u8 steer_type_mask = 2;
3901 enum mlx4_steer_type type = (gid[7] & steer_type_mask) >> 1;
3902
3903 qpn = vhcr->in_modifier & 0xffffff;
3904 err = get_res(dev, slave, qpn, RES_QP, &rqp);
3905 if (err)
3906 return err;
3907
3908 qp.qpn = qpn;
3909 if (attach) {
3910 err = qp_attach(dev, slave, &qp, gid, block_loopback, prot,
3911 type, ®_id);
3912 if (err) {
3913 pr_err("Fail to attach rule to qp 0x%x\n", qpn);
3914 goto ex_put;
3915 }
3916 err = add_mcg_res(dev, slave, rqp, gid, prot, type, reg_id);
3917 if (err)
3918 goto ex_detach;
3919 } else {
3920 err = mlx4_adjust_port(dev, slave, gid, prot);
3921 if (err)
3922 goto ex_put;
3923
3924 err = rem_mcg_res(dev, slave, rqp, gid, prot, type, ®_id);
3925 if (err)
3926 goto ex_put;
3927
3928 err = qp_detach(dev, &qp, gid, prot, type, reg_id);
3929 if (err)
3930 pr_err("Fail to detach rule from qp 0x%x reg_id = 0x%llx\n",
3931 qpn, reg_id);
3932 }
3933 put_res(dev, slave, qpn, RES_QP);
3934 return err;
3935
3936ex_detach:
3937 qp_detach(dev, &qp, gid, prot, type, reg_id);
3938ex_put:
3939 put_res(dev, slave, qpn, RES_QP);
3940 return err;
3941}
3942
3943
3944
3945
3946
3947static int validate_eth_header_mac(int slave, struct _rule_hw *eth_header,
3948 struct list_head *rlist)
3949{
3950 struct mac_res *res, *tmp;
3951 __be64 be_mac;
3952
3953
3954 if (!is_multicast_ether_addr(eth_header->eth.dst_mac) &&
3955 !is_broadcast_ether_addr(eth_header->eth.dst_mac)) {
3956 list_for_each_entry_safe(res, tmp, rlist, list) {
3957 be_mac = cpu_to_be64(res->mac << 16);
3958 if (ether_addr_equal((u8 *)&be_mac, eth_header->eth.dst_mac))
3959 return 0;
3960 }
3961 pr_err("MAC %pM doesn't belong to VF %d, Steering rule rejected\n",
3962 eth_header->eth.dst_mac, slave);
3963 return -EINVAL;
3964 }
3965 return 0;
3966}
3967
3968
3969
3970
3971
3972static int add_eth_header(struct mlx4_dev *dev, int slave,
3973 struct mlx4_cmd_mailbox *inbox,
3974 struct list_head *rlist, int header_id)
3975{
3976 struct mac_res *res, *tmp;
3977 u8 port;
3978 struct mlx4_net_trans_rule_hw_ctrl *ctrl;
3979 struct mlx4_net_trans_rule_hw_eth *eth_header;
3980 struct mlx4_net_trans_rule_hw_ipv4 *ip_header;
3981 struct mlx4_net_trans_rule_hw_tcp_udp *l4_header;
3982 __be64 be_mac = 0;
3983 __be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16);
3984
3985 ctrl = (struct mlx4_net_trans_rule_hw_ctrl *)inbox->buf;
3986 port = ctrl->port;
3987 eth_header = (struct mlx4_net_trans_rule_hw_eth *)(ctrl + 1);
3988
3989
3990 switch (header_id) {
3991 case MLX4_NET_TRANS_RULE_ID_IPV4:
3992 ip_header =
3993 (struct mlx4_net_trans_rule_hw_ipv4 *)(eth_header + 1);
3994 memmove(ip_header, eth_header,
3995 sizeof(*ip_header) + sizeof(*l4_header));
3996 break;
3997 case MLX4_NET_TRANS_RULE_ID_TCP:
3998 case MLX4_NET_TRANS_RULE_ID_UDP:
3999 l4_header = (struct mlx4_net_trans_rule_hw_tcp_udp *)
4000 (eth_header + 1);
4001 memmove(l4_header, eth_header, sizeof(*l4_header));
4002 break;
4003 default:
4004 return -EINVAL;
4005 }
4006 list_for_each_entry_safe(res, tmp, rlist, list) {
4007 if (port == res->port) {
4008 be_mac = cpu_to_be64(res->mac << 16);
4009 break;
4010 }
4011 }
4012 if (!be_mac) {
4013 pr_err("Failed adding eth header to FS rule, Can't find matching MAC for port %d\n",
4014 port);
4015 return -EINVAL;
4016 }
4017
4018 memset(eth_header, 0, sizeof(*eth_header));
4019 eth_header->size = sizeof(*eth_header) >> 2;
4020 eth_header->id = cpu_to_be16(__sw_id_hw[MLX4_NET_TRANS_RULE_ID_ETH]);
4021 memcpy(eth_header->dst_mac, &be_mac, ETH_ALEN);
4022 memcpy(eth_header->dst_mac_msk, &mac_msk, ETH_ALEN);
4023
4024 return 0;
4025
4026}
4027
4028#define MLX4_UPD_QP_PATH_MASK_SUPPORTED (1ULL << MLX4_UPD_QP_PATH_MASK_MAC_INDEX)
4029int mlx4_UPDATE_QP_wrapper(struct mlx4_dev *dev, int slave,
4030 struct mlx4_vhcr *vhcr,
4031 struct mlx4_cmd_mailbox *inbox,
4032 struct mlx4_cmd_mailbox *outbox,
4033 struct mlx4_cmd_info *cmd_info)
4034{
4035 int err;
4036 u32 qpn = vhcr->in_modifier & 0xffffff;
4037 struct res_qp *rqp;
4038 u64 mac;
4039 unsigned port;
4040 u64 pri_addr_path_mask;
4041 struct mlx4_update_qp_context *cmd;
4042 int smac_index;
4043
4044 cmd = (struct mlx4_update_qp_context *)inbox->buf;
4045
4046 pri_addr_path_mask = be64_to_cpu(cmd->primary_addr_path_mask);
4047 if (cmd->qp_mask || cmd->secondary_addr_path_mask ||
4048 (pri_addr_path_mask & ~MLX4_UPD_QP_PATH_MASK_SUPPORTED))
4049 return -EPERM;
4050
4051
4052 err = get_res(dev, slave, qpn, RES_QP, &rqp);
4053 if (err) {
4054 mlx4_err(dev, "Updating qpn 0x%x for slave %d rejected\n", qpn, slave);
4055 return err;
4056 }
4057
4058 port = (rqp->sched_queue >> 6 & 1) + 1;
4059
4060 if (pri_addr_path_mask & (1ULL << MLX4_UPD_QP_PATH_MASK_MAC_INDEX)) {
4061 smac_index = cmd->qp_context.pri_path.grh_mylmc;
4062 err = mac_find_smac_ix_in_slave(dev, slave, port,
4063 smac_index, &mac);
4064
4065 if (err) {
4066 mlx4_err(dev, "Failed to update qpn 0x%x, MAC is invalid. smac_ix: %d\n",
4067 qpn, smac_index);
4068 goto err_mac;
4069 }
4070 }
4071
4072 err = mlx4_cmd(dev, inbox->dma,
4073 vhcr->in_modifier, 0,
4074 MLX4_CMD_UPDATE_QP, MLX4_CMD_TIME_CLASS_A,
4075 MLX4_CMD_NATIVE);
4076 if (err) {
4077 mlx4_err(dev, "Failed to update qpn on qpn 0x%x, command failed\n", qpn);
4078 goto err_mac;
4079 }
4080
4081err_mac:
4082 put_res(dev, slave, qpn, RES_QP);
4083 return err;
4084}
4085
4086int mlx4_QP_FLOW_STEERING_ATTACH_wrapper(struct mlx4_dev *dev, int slave,
4087 struct mlx4_vhcr *vhcr,
4088 struct mlx4_cmd_mailbox *inbox,
4089 struct mlx4_cmd_mailbox *outbox,
4090 struct mlx4_cmd_info *cmd)
4091{
4092
4093 struct mlx4_priv *priv = mlx4_priv(dev);
4094 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4095 struct list_head *rlist = &tracker->slave_list[slave].res_list[RES_MAC];
4096 int err;
4097 int qpn;
4098 struct res_qp *rqp;
4099 struct mlx4_net_trans_rule_hw_ctrl *ctrl;
4100 struct _rule_hw *rule_header;
4101 int header_id;
4102
4103 if (dev->caps.steering_mode !=
4104 MLX4_STEERING_MODE_DEVICE_MANAGED)
4105 return -EOPNOTSUPP;
4106
4107 ctrl = (struct mlx4_net_trans_rule_hw_ctrl *)inbox->buf;
4108 ctrl->port = mlx4_slave_convert_port(dev, slave, ctrl->port);
4109 if (ctrl->port <= 0)
4110 return -EINVAL;
4111 qpn = be32_to_cpu(ctrl->qpn) & 0xffffff;
4112 err = get_res(dev, slave, qpn, RES_QP, &rqp);
4113 if (err) {
4114 pr_err("Steering rule with qpn 0x%x rejected\n", qpn);
4115 return err;
4116 }
4117 rule_header = (struct _rule_hw *)(ctrl + 1);
4118 header_id = map_hw_to_sw_id(be16_to_cpu(rule_header->id));
4119
4120 switch (header_id) {
4121 case MLX4_NET_TRANS_RULE_ID_ETH:
4122 if (validate_eth_header_mac(slave, rule_header, rlist)) {
4123 err = -EINVAL;
4124 goto err_put;
4125 }
4126 break;
4127 case MLX4_NET_TRANS_RULE_ID_IB:
4128 break;
4129 case MLX4_NET_TRANS_RULE_ID_IPV4:
4130 case MLX4_NET_TRANS_RULE_ID_TCP:
4131 case MLX4_NET_TRANS_RULE_ID_UDP:
4132 pr_warn("Can't attach FS rule without L2 headers, adding L2 header\n");
4133 if (add_eth_header(dev, slave, inbox, rlist, header_id)) {
4134 err = -EINVAL;
4135 goto err_put;
4136 }
4137 vhcr->in_modifier +=
4138 sizeof(struct mlx4_net_trans_rule_hw_eth) >> 2;
4139 break;
4140 default:
4141 pr_err("Corrupted mailbox\n");
4142 err = -EINVAL;
4143 goto err_put;
4144 }
4145
4146 err = mlx4_cmd_imm(dev, inbox->dma, &vhcr->out_param,
4147 vhcr->in_modifier, 0,
4148 MLX4_QP_FLOW_STEERING_ATTACH, MLX4_CMD_TIME_CLASS_A,
4149 MLX4_CMD_NATIVE);
4150 if (err)
4151 goto err_put;
4152
4153 err = add_res_range(dev, slave, vhcr->out_param, 1, RES_FS_RULE, qpn);
4154 if (err) {
4155 mlx4_err(dev, "Fail to add flow steering resources\n");
4156
4157 mlx4_cmd(dev, vhcr->out_param, 0, 0,
4158 MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A,
4159 MLX4_CMD_NATIVE);
4160 goto err_put;
4161 }
4162 atomic_inc(&rqp->ref_count);
4163err_put:
4164 put_res(dev, slave, qpn, RES_QP);
4165 return err;
4166}
4167
4168int mlx4_QP_FLOW_STEERING_DETACH_wrapper(struct mlx4_dev *dev, int slave,
4169 struct mlx4_vhcr *vhcr,
4170 struct mlx4_cmd_mailbox *inbox,
4171 struct mlx4_cmd_mailbox *outbox,
4172 struct mlx4_cmd_info *cmd)
4173{
4174 int err;
4175 struct res_qp *rqp;
4176 struct res_fs_rule *rrule;
4177
4178 if (dev->caps.steering_mode !=
4179 MLX4_STEERING_MODE_DEVICE_MANAGED)
4180 return -EOPNOTSUPP;
4181
4182 err = get_res(dev, slave, vhcr->in_param, RES_FS_RULE, &rrule);
4183 if (err)
4184 return err;
4185
4186 put_res(dev, slave, vhcr->in_param, RES_FS_RULE);
4187 err = get_res(dev, slave, rrule->qpn, RES_QP, &rqp);
4188 if (err)
4189 return err;
4190
4191 err = rem_res_range(dev, slave, vhcr->in_param, 1, RES_FS_RULE, 0);
4192 if (err) {
4193 mlx4_err(dev, "Fail to remove flow steering resources\n");
4194 goto out;
4195 }
4196
4197 err = mlx4_cmd(dev, vhcr->in_param, 0, 0,
4198 MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A,
4199 MLX4_CMD_NATIVE);
4200 if (!err)
4201 atomic_dec(&rqp->ref_count);
4202out:
4203 put_res(dev, slave, rrule->qpn, RES_QP);
4204 return err;
4205}
4206
4207enum {
4208 BUSY_MAX_RETRIES = 10
4209};
4210
4211int mlx4_QUERY_IF_STAT_wrapper(struct mlx4_dev *dev, int slave,
4212 struct mlx4_vhcr *vhcr,
4213 struct mlx4_cmd_mailbox *inbox,
4214 struct mlx4_cmd_mailbox *outbox,
4215 struct mlx4_cmd_info *cmd)
4216{
4217 int err;
4218 int index = vhcr->in_modifier & 0xffff;
4219
4220 err = get_res(dev, slave, index, RES_COUNTER, NULL);
4221 if (err)
4222 return err;
4223
4224 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
4225 put_res(dev, slave, index, RES_COUNTER);
4226 return err;
4227}
4228
4229static void detach_qp(struct mlx4_dev *dev, int slave, struct res_qp *rqp)
4230{
4231 struct res_gid *rgid;
4232 struct res_gid *tmp;
4233 struct mlx4_qp qp;
4234
4235 list_for_each_entry_safe(rgid, tmp, &rqp->mcg_list, list) {
4236 switch (dev->caps.steering_mode) {
4237 case MLX4_STEERING_MODE_DEVICE_MANAGED:
4238 mlx4_flow_detach(dev, rgid->reg_id);
4239 break;
4240 case MLX4_STEERING_MODE_B0:
4241 qp.qpn = rqp->local_qpn;
4242 (void) mlx4_qp_detach_common(dev, &qp, rgid->gid,
4243 rgid->prot, rgid->steer);
4244 break;
4245 }
4246 list_del(&rgid->list);
4247 kfree(rgid);
4248 }
4249}
4250
4251static int _move_all_busy(struct mlx4_dev *dev, int slave,
4252 enum mlx4_resource type, int print)
4253{
4254 struct mlx4_priv *priv = mlx4_priv(dev);
4255 struct mlx4_resource_tracker *tracker =
4256 &priv->mfunc.master.res_tracker;
4257 struct list_head *rlist = &tracker->slave_list[slave].res_list[type];
4258 struct res_common *r;
4259 struct res_common *tmp;
4260 int busy;
4261
4262 busy = 0;
4263 spin_lock_irq(mlx4_tlock(dev));
4264 list_for_each_entry_safe(r, tmp, rlist, list) {
4265 if (r->owner == slave) {
4266 if (!r->removing) {
4267 if (r->state == RES_ANY_BUSY) {
4268 if (print)
4269 mlx4_dbg(dev,
4270 "%s id 0x%llx is busy\n",
4271 resource_str(type),
4272 r->res_id);
4273 ++busy;
4274 } else {
4275 r->from_state = r->state;
4276 r->state = RES_ANY_BUSY;
4277 r->removing = 1;
4278 }
4279 }
4280 }
4281 }
4282 spin_unlock_irq(mlx4_tlock(dev));
4283
4284 return busy;
4285}
4286
4287static int move_all_busy(struct mlx4_dev *dev, int slave,
4288 enum mlx4_resource type)
4289{
4290 unsigned long begin;
4291 int busy;
4292
4293 begin = jiffies;
4294 do {
4295 busy = _move_all_busy(dev, slave, type, 0);
4296 if (time_after(jiffies, begin + 5 * HZ))
4297 break;
4298 if (busy)
4299 cond_resched();
4300 } while (busy);
4301
4302 if (busy)
4303 busy = _move_all_busy(dev, slave, type, 1);
4304
4305 return busy;
4306}
4307static void rem_slave_qps(struct mlx4_dev *dev, int slave)
4308{
4309 struct mlx4_priv *priv = mlx4_priv(dev);
4310 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4311 struct list_head *qp_list =
4312 &tracker->slave_list[slave].res_list[RES_QP];
4313 struct res_qp *qp;
4314 struct res_qp *tmp;
4315 int state;
4316 u64 in_param;
4317 int qpn;
4318 int err;
4319
4320 err = move_all_busy(dev, slave, RES_QP);
4321 if (err)
4322 mlx4_warn(dev, "rem_slave_qps: Could not move all qps to busy for slave %d\n",
4323 slave);
4324
4325 spin_lock_irq(mlx4_tlock(dev));
4326 list_for_each_entry_safe(qp, tmp, qp_list, com.list) {
4327 spin_unlock_irq(mlx4_tlock(dev));
4328 if (qp->com.owner == slave) {
4329 qpn = qp->com.res_id;
4330 detach_qp(dev, slave, qp);
4331 state = qp->com.from_state;
4332 while (state != 0) {
4333 switch (state) {
4334 case RES_QP_RESERVED:
4335 spin_lock_irq(mlx4_tlock(dev));
4336 rb_erase(&qp->com.node,
4337 &tracker->res_tree[RES_QP]);
4338 list_del(&qp->com.list);
4339 spin_unlock_irq(mlx4_tlock(dev));
4340 if (!valid_reserved(dev, slave, qpn)) {
4341 __mlx4_qp_release_range(dev, qpn, 1);
4342 mlx4_release_resource(dev, slave,
4343 RES_QP, 1, 0);
4344 }
4345 kfree(qp);
4346 state = 0;
4347 break;
4348 case RES_QP_MAPPED:
4349 if (!valid_reserved(dev, slave, qpn))
4350 __mlx4_qp_free_icm(dev, qpn);
4351 state = RES_QP_RESERVED;
4352 break;
4353 case RES_QP_HW:
4354 in_param = slave;
4355 err = mlx4_cmd(dev, in_param,
4356 qp->local_qpn, 2,
4357 MLX4_CMD_2RST_QP,
4358 MLX4_CMD_TIME_CLASS_A,
4359 MLX4_CMD_NATIVE);
4360 if (err)
4361 mlx4_dbg(dev, "rem_slave_qps: failed to move slave %d qpn %d to reset\n",
4362 slave, qp->local_qpn);
4363 atomic_dec(&qp->rcq->ref_count);
4364 atomic_dec(&qp->scq->ref_count);
4365 atomic_dec(&qp->mtt->ref_count);
4366 if (qp->srq)
4367 atomic_dec(&qp->srq->ref_count);
4368 state = RES_QP_MAPPED;
4369 break;
4370 default:
4371 state = 0;
4372 }
4373 }
4374 }
4375 spin_lock_irq(mlx4_tlock(dev));
4376 }
4377 spin_unlock_irq(mlx4_tlock(dev));
4378}
4379
4380static void rem_slave_srqs(struct mlx4_dev *dev, int slave)
4381{
4382 struct mlx4_priv *priv = mlx4_priv(dev);
4383 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4384 struct list_head *srq_list =
4385 &tracker->slave_list[slave].res_list[RES_SRQ];
4386 struct res_srq *srq;
4387 struct res_srq *tmp;
4388 int state;
4389 u64 in_param;
4390 LIST_HEAD(tlist);
4391 int srqn;
4392 int err;
4393
4394 err = move_all_busy(dev, slave, RES_SRQ);
4395 if (err)
4396 mlx4_warn(dev, "rem_slave_srqs: Could not move all srqs - too busy for slave %d\n",
4397 slave);
4398
4399 spin_lock_irq(mlx4_tlock(dev));
4400 list_for_each_entry_safe(srq, tmp, srq_list, com.list) {
4401 spin_unlock_irq(mlx4_tlock(dev));
4402 if (srq->com.owner == slave) {
4403 srqn = srq->com.res_id;
4404 state = srq->com.from_state;
4405 while (state != 0) {
4406 switch (state) {
4407 case RES_SRQ_ALLOCATED:
4408 __mlx4_srq_free_icm(dev, srqn);
4409 spin_lock_irq(mlx4_tlock(dev));
4410 rb_erase(&srq->com.node,
4411 &tracker->res_tree[RES_SRQ]);
4412 list_del(&srq->com.list);
4413 spin_unlock_irq(mlx4_tlock(dev));
4414 mlx4_release_resource(dev, slave,
4415 RES_SRQ, 1, 0);
4416 kfree(srq);
4417 state = 0;
4418 break;
4419
4420 case RES_SRQ_HW:
4421 in_param = slave;
4422 err = mlx4_cmd(dev, in_param, srqn, 1,
4423 MLX4_CMD_HW2SW_SRQ,
4424 MLX4_CMD_TIME_CLASS_A,
4425 MLX4_CMD_NATIVE);
4426 if (err)
4427 mlx4_dbg(dev, "rem_slave_srqs: failed to move slave %d srq %d to SW ownership\n",
4428 slave, srqn);
4429
4430 atomic_dec(&srq->mtt->ref_count);
4431 if (srq->cq)
4432 atomic_dec(&srq->cq->ref_count);
4433 state = RES_SRQ_ALLOCATED;
4434 break;
4435
4436 default:
4437 state = 0;
4438 }
4439 }
4440 }
4441 spin_lock_irq(mlx4_tlock(dev));
4442 }
4443 spin_unlock_irq(mlx4_tlock(dev));
4444}
4445
4446static void rem_slave_cqs(struct mlx4_dev *dev, int slave)
4447{
4448 struct mlx4_priv *priv = mlx4_priv(dev);
4449 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4450 struct list_head *cq_list =
4451 &tracker->slave_list[slave].res_list[RES_CQ];
4452 struct res_cq *cq;
4453 struct res_cq *tmp;
4454 int state;
4455 u64 in_param;
4456 LIST_HEAD(tlist);
4457 int cqn;
4458 int err;
4459
4460 err = move_all_busy(dev, slave, RES_CQ);
4461 if (err)
4462 mlx4_warn(dev, "rem_slave_cqs: Could not move all cqs - too busy for slave %d\n",
4463 slave);
4464
4465 spin_lock_irq(mlx4_tlock(dev));
4466 list_for_each_entry_safe(cq, tmp, cq_list, com.list) {
4467 spin_unlock_irq(mlx4_tlock(dev));
4468 if (cq->com.owner == slave && !atomic_read(&cq->ref_count)) {
4469 cqn = cq->com.res_id;
4470 state = cq->com.from_state;
4471 while (state != 0) {
4472 switch (state) {
4473 case RES_CQ_ALLOCATED:
4474 __mlx4_cq_free_icm(dev, cqn);
4475 spin_lock_irq(mlx4_tlock(dev));
4476 rb_erase(&cq->com.node,
4477 &tracker->res_tree[RES_CQ]);
4478 list_del(&cq->com.list);
4479 spin_unlock_irq(mlx4_tlock(dev));
4480 mlx4_release_resource(dev, slave,
4481 RES_CQ, 1, 0);
4482 kfree(cq);
4483 state = 0;
4484 break;
4485
4486 case RES_CQ_HW:
4487 in_param = slave;
4488 err = mlx4_cmd(dev, in_param, cqn, 1,
4489 MLX4_CMD_HW2SW_CQ,
4490 MLX4_CMD_TIME_CLASS_A,
4491 MLX4_CMD_NATIVE);
4492 if (err)
4493 mlx4_dbg(dev, "rem_slave_cqs: failed to move slave %d cq %d to SW ownership\n",
4494 slave, cqn);
4495 atomic_dec(&cq->mtt->ref_count);
4496 state = RES_CQ_ALLOCATED;
4497 break;
4498
4499 default:
4500 state = 0;
4501 }
4502 }
4503 }
4504 spin_lock_irq(mlx4_tlock(dev));
4505 }
4506 spin_unlock_irq(mlx4_tlock(dev));
4507}
4508
4509static void rem_slave_mrs(struct mlx4_dev *dev, int slave)
4510{
4511 struct mlx4_priv *priv = mlx4_priv(dev);
4512 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4513 struct list_head *mpt_list =
4514 &tracker->slave_list[slave].res_list[RES_MPT];
4515 struct res_mpt *mpt;
4516 struct res_mpt *tmp;
4517 int state;
4518 u64 in_param;
4519 LIST_HEAD(tlist);
4520 int mptn;
4521 int err;
4522
4523 err = move_all_busy(dev, slave, RES_MPT);
4524 if (err)
4525 mlx4_warn(dev, "rem_slave_mrs: Could not move all mpts - too busy for slave %d\n",
4526 slave);
4527
4528 spin_lock_irq(mlx4_tlock(dev));
4529 list_for_each_entry_safe(mpt, tmp, mpt_list, com.list) {
4530 spin_unlock_irq(mlx4_tlock(dev));
4531 if (mpt->com.owner == slave) {
4532 mptn = mpt->com.res_id;
4533 state = mpt->com.from_state;
4534 while (state != 0) {
4535 switch (state) {
4536 case RES_MPT_RESERVED:
4537 __mlx4_mpt_release(dev, mpt->key);
4538 spin_lock_irq(mlx4_tlock(dev));
4539 rb_erase(&mpt->com.node,
4540 &tracker->res_tree[RES_MPT]);
4541 list_del(&mpt->com.list);
4542 spin_unlock_irq(mlx4_tlock(dev));
4543 mlx4_release_resource(dev, slave,
4544 RES_MPT, 1, 0);
4545 kfree(mpt);
4546 state = 0;
4547 break;
4548
4549 case RES_MPT_MAPPED:
4550 __mlx4_mpt_free_icm(dev, mpt->key);
4551 state = RES_MPT_RESERVED;
4552 break;
4553
4554 case RES_MPT_HW:
4555 in_param = slave;
4556 err = mlx4_cmd(dev, in_param, mptn, 0,
4557 MLX4_CMD_HW2SW_MPT,
4558 MLX4_CMD_TIME_CLASS_A,
4559 MLX4_CMD_NATIVE);
4560 if (err)
4561 mlx4_dbg(dev, "rem_slave_mrs: failed to move slave %d mpt %d to SW ownership\n",
4562 slave, mptn);
4563 if (mpt->mtt)
4564 atomic_dec(&mpt->mtt->ref_count);
4565 state = RES_MPT_MAPPED;
4566 break;
4567 default:
4568 state = 0;
4569 }
4570 }
4571 }
4572 spin_lock_irq(mlx4_tlock(dev));
4573 }
4574 spin_unlock_irq(mlx4_tlock(dev));
4575}
4576
4577static void rem_slave_mtts(struct mlx4_dev *dev, int slave)
4578{
4579 struct mlx4_priv *priv = mlx4_priv(dev);
4580 struct mlx4_resource_tracker *tracker =
4581 &priv->mfunc.master.res_tracker;
4582 struct list_head *mtt_list =
4583 &tracker->slave_list[slave].res_list[RES_MTT];
4584 struct res_mtt *mtt;
4585 struct res_mtt *tmp;
4586 int state;
4587 LIST_HEAD(tlist);
4588 int base;
4589 int err;
4590
4591 err = move_all_busy(dev, slave, RES_MTT);
4592 if (err)
4593 mlx4_warn(dev, "rem_slave_mtts: Could not move all mtts - too busy for slave %d\n",
4594 slave);
4595
4596 spin_lock_irq(mlx4_tlock(dev));
4597 list_for_each_entry_safe(mtt, tmp, mtt_list, com.list) {
4598 spin_unlock_irq(mlx4_tlock(dev));
4599 if (mtt->com.owner == slave) {
4600 base = mtt->com.res_id;
4601 state = mtt->com.from_state;
4602 while (state != 0) {
4603 switch (state) {
4604 case RES_MTT_ALLOCATED:
4605 __mlx4_free_mtt_range(dev, base,
4606 mtt->order);
4607 spin_lock_irq(mlx4_tlock(dev));
4608 rb_erase(&mtt->com.node,
4609 &tracker->res_tree[RES_MTT]);
4610 list_del(&mtt->com.list);
4611 spin_unlock_irq(mlx4_tlock(dev));
4612 mlx4_release_resource(dev, slave, RES_MTT,
4613 1 << mtt->order, 0);
4614 kfree(mtt);
4615 state = 0;
4616 break;
4617
4618 default:
4619 state = 0;
4620 }
4621 }
4622 }
4623 spin_lock_irq(mlx4_tlock(dev));
4624 }
4625 spin_unlock_irq(mlx4_tlock(dev));
4626}
4627
4628static void rem_slave_fs_rule(struct mlx4_dev *dev, int slave)
4629{
4630 struct mlx4_priv *priv = mlx4_priv(dev);
4631 struct mlx4_resource_tracker *tracker =
4632 &priv->mfunc.master.res_tracker;
4633 struct list_head *fs_rule_list =
4634 &tracker->slave_list[slave].res_list[RES_FS_RULE];
4635 struct res_fs_rule *fs_rule;
4636 struct res_fs_rule *tmp;
4637 int state;
4638 u64 base;
4639 int err;
4640
4641 err = move_all_busy(dev, slave, RES_FS_RULE);
4642 if (err)
4643 mlx4_warn(dev, "rem_slave_fs_rule: Could not move all mtts to busy for slave %d\n",
4644 slave);
4645
4646 spin_lock_irq(mlx4_tlock(dev));
4647 list_for_each_entry_safe(fs_rule, tmp, fs_rule_list, com.list) {
4648 spin_unlock_irq(mlx4_tlock(dev));
4649 if (fs_rule->com.owner == slave) {
4650 base = fs_rule->com.res_id;
4651 state = fs_rule->com.from_state;
4652 while (state != 0) {
4653 switch (state) {
4654 case RES_FS_RULE_ALLOCATED:
4655
4656 err = mlx4_cmd(dev, base, 0, 0,
4657 MLX4_QP_FLOW_STEERING_DETACH,
4658 MLX4_CMD_TIME_CLASS_A,
4659 MLX4_CMD_NATIVE);
4660
4661 spin_lock_irq(mlx4_tlock(dev));
4662 rb_erase(&fs_rule->com.node,
4663 &tracker->res_tree[RES_FS_RULE]);
4664 list_del(&fs_rule->com.list);
4665 spin_unlock_irq(mlx4_tlock(dev));
4666 kfree(fs_rule);
4667 state = 0;
4668 break;
4669
4670 default:
4671 state = 0;
4672 }
4673 }
4674 }
4675 spin_lock_irq(mlx4_tlock(dev));
4676 }
4677 spin_unlock_irq(mlx4_tlock(dev));
4678}
4679
4680static void rem_slave_eqs(struct mlx4_dev *dev, int slave)
4681{
4682 struct mlx4_priv *priv = mlx4_priv(dev);
4683 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4684 struct list_head *eq_list =
4685 &tracker->slave_list[slave].res_list[RES_EQ];
4686 struct res_eq *eq;
4687 struct res_eq *tmp;
4688 int err;
4689 int state;
4690 LIST_HEAD(tlist);
4691 int eqn;
4692
4693 err = move_all_busy(dev, slave, RES_EQ);
4694 if (err)
4695 mlx4_warn(dev, "rem_slave_eqs: Could not move all eqs - too busy for slave %d\n",
4696 slave);
4697
4698 spin_lock_irq(mlx4_tlock(dev));
4699 list_for_each_entry_safe(eq, tmp, eq_list, com.list) {
4700 spin_unlock_irq(mlx4_tlock(dev));
4701 if (eq->com.owner == slave) {
4702 eqn = eq->com.res_id;
4703 state = eq->com.from_state;
4704 while (state != 0) {
4705 switch (state) {
4706 case RES_EQ_RESERVED:
4707 spin_lock_irq(mlx4_tlock(dev));
4708 rb_erase(&eq->com.node,
4709 &tracker->res_tree[RES_EQ]);
4710 list_del(&eq->com.list);
4711 spin_unlock_irq(mlx4_tlock(dev));
4712 kfree(eq);
4713 state = 0;
4714 break;
4715
4716 case RES_EQ_HW:
4717 err = mlx4_cmd(dev, slave, eqn & 0x3ff,
4718 1, MLX4_CMD_HW2SW_EQ,
4719 MLX4_CMD_TIME_CLASS_A,
4720 MLX4_CMD_NATIVE);
4721 if (err)
4722 mlx4_dbg(dev, "rem_slave_eqs: failed to move slave %d eqs %d to SW ownership\n",
4723 slave, eqn & 0x3ff);
4724 atomic_dec(&eq->mtt->ref_count);
4725 state = RES_EQ_RESERVED;
4726 break;
4727
4728 default:
4729 state = 0;
4730 }
4731 }
4732 }
4733 spin_lock_irq(mlx4_tlock(dev));
4734 }
4735 spin_unlock_irq(mlx4_tlock(dev));
4736}
4737
4738static void rem_slave_counters(struct mlx4_dev *dev, int slave)
4739{
4740 struct mlx4_priv *priv = mlx4_priv(dev);
4741 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4742 struct list_head *counter_list =
4743 &tracker->slave_list[slave].res_list[RES_COUNTER];
4744 struct res_counter *counter;
4745 struct res_counter *tmp;
4746 int err;
4747 int index;
4748
4749 err = move_all_busy(dev, slave, RES_COUNTER);
4750 if (err)
4751 mlx4_warn(dev, "rem_slave_counters: Could not move all counters - too busy for slave %d\n",
4752 slave);
4753
4754 spin_lock_irq(mlx4_tlock(dev));
4755 list_for_each_entry_safe(counter, tmp, counter_list, com.list) {
4756 if (counter->com.owner == slave) {
4757 index = counter->com.res_id;
4758 rb_erase(&counter->com.node,
4759 &tracker->res_tree[RES_COUNTER]);
4760 list_del(&counter->com.list);
4761 kfree(counter);
4762 __mlx4_counter_free(dev, index);
4763 mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0);
4764 }
4765 }
4766 spin_unlock_irq(mlx4_tlock(dev));
4767}
4768
4769static void rem_slave_xrcdns(struct mlx4_dev *dev, int slave)
4770{
4771 struct mlx4_priv *priv = mlx4_priv(dev);
4772 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
4773 struct list_head *xrcdn_list =
4774 &tracker->slave_list[slave].res_list[RES_XRCD];
4775 struct res_xrcdn *xrcd;
4776 struct res_xrcdn *tmp;
4777 int err;
4778 int xrcdn;
4779
4780 err = move_all_busy(dev, slave, RES_XRCD);
4781 if (err)
4782 mlx4_warn(dev, "rem_slave_xrcdns: Could not move all xrcdns - too busy for slave %d\n",
4783 slave);
4784
4785 spin_lock_irq(mlx4_tlock(dev));
4786 list_for_each_entry_safe(xrcd, tmp, xrcdn_list, com.list) {
4787 if (xrcd->com.owner == slave) {
4788 xrcdn = xrcd->com.res_id;
4789 rb_erase(&xrcd->com.node, &tracker->res_tree[RES_XRCD]);
4790 list_del(&xrcd->com.list);
4791 kfree(xrcd);
4792 __mlx4_xrcd_free(dev, xrcdn);
4793 }
4794 }
4795 spin_unlock_irq(mlx4_tlock(dev));
4796}
4797
4798void mlx4_delete_all_resources_for_slave(struct mlx4_dev *dev, int slave)
4799{
4800 struct mlx4_priv *priv = mlx4_priv(dev);
4801 mlx4_reset_roce_gids(dev, slave);
4802 mutex_lock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex);
4803 rem_slave_vlans(dev, slave);
4804 rem_slave_macs(dev, slave);
4805 rem_slave_fs_rule(dev, slave);
4806 rem_slave_qps(dev, slave);
4807 rem_slave_srqs(dev, slave);
4808 rem_slave_cqs(dev, slave);
4809 rem_slave_mrs(dev, slave);
4810 rem_slave_eqs(dev, slave);
4811 rem_slave_mtts(dev, slave);
4812 rem_slave_counters(dev, slave);
4813 rem_slave_xrcdns(dev, slave);
4814 mutex_unlock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex);
4815}
4816
4817void mlx4_vf_immed_vlan_work_handler(struct work_struct *_work)
4818{
4819 struct mlx4_vf_immed_vlan_work *work =
4820 container_of(_work, struct mlx4_vf_immed_vlan_work, work);
4821 struct mlx4_cmd_mailbox *mailbox;
4822 struct mlx4_update_qp_context *upd_context;
4823 struct mlx4_dev *dev = &work->priv->dev;
4824 struct mlx4_resource_tracker *tracker =
4825 &work->priv->mfunc.master.res_tracker;
4826 struct list_head *qp_list =
4827 &tracker->slave_list[work->slave].res_list[RES_QP];
4828 struct res_qp *qp;
4829 struct res_qp *tmp;
4830 u64 qp_path_mask_vlan_ctrl =
4831 ((1ULL << MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_UNTAGGED) |
4832 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_1P) |
4833 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_TAGGED) |
4834 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_UNTAGGED) |
4835 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_1P) |
4836 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_TAGGED));
4837
4838 u64 qp_path_mask = ((1ULL << MLX4_UPD_QP_PATH_MASK_VLAN_INDEX) |
4839 (1ULL << MLX4_UPD_QP_PATH_MASK_FVL) |
4840 (1ULL << MLX4_UPD_QP_PATH_MASK_CV) |
4841 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_HIDE_CQE_VLAN) |
4842 (1ULL << MLX4_UPD_QP_PATH_MASK_FEUP) |
4843 (1ULL << MLX4_UPD_QP_PATH_MASK_FVL_RX) |
4844 (1ULL << MLX4_UPD_QP_PATH_MASK_SCHED_QUEUE));
4845
4846 int err;
4847 int port, errors = 0;
4848 u8 vlan_control;
4849
4850 if (mlx4_is_slave(dev)) {
4851 mlx4_warn(dev, "Trying to update-qp in slave %d\n",
4852 work->slave);
4853 goto out;
4854 }
4855
4856 mailbox = mlx4_alloc_cmd_mailbox(dev);
4857 if (IS_ERR(mailbox))
4858 goto out;
4859 if (work->flags & MLX4_VF_IMMED_VLAN_FLAG_LINK_DISABLE)
4860 vlan_control = MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
4861 MLX4_VLAN_CTRL_ETH_TX_BLOCK_PRIO_TAGGED |
4862 MLX4_VLAN_CTRL_ETH_TX_BLOCK_UNTAGGED |
4863 MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED |
4864 MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED |
4865 MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED;
4866 else if (!work->vlan_id)
4867 vlan_control = MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
4868 MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED;
4869 else
4870 vlan_control = MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
4871 MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED |
4872 MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED;
4873
4874 upd_context = mailbox->buf;
4875 upd_context->qp_mask = cpu_to_be64(1ULL << MLX4_UPD_QP_MASK_VSD);
4876
4877 spin_lock_irq(mlx4_tlock(dev));
4878 list_for_each_entry_safe(qp, tmp, qp_list, com.list) {
4879 spin_unlock_irq(mlx4_tlock(dev));
4880 if (qp->com.owner == work->slave) {
4881 if (qp->com.from_state != RES_QP_HW ||
4882 !qp->sched_queue ||
4883 mlx4_is_qp_reserved(dev, qp->local_qpn) ||
4884 qp->qpc_flags & (1 << MLX4_RSS_QPC_FLAG_OFFSET)) {
4885 spin_lock_irq(mlx4_tlock(dev));
4886 continue;
4887 }
4888 port = (qp->sched_queue >> 6 & 1) + 1;
4889 if (port != work->port) {
4890 spin_lock_irq(mlx4_tlock(dev));
4891 continue;
4892 }
4893 if (MLX4_QP_ST_RC == ((qp->qpc_flags >> 16) & 0xff))
4894 upd_context->primary_addr_path_mask = cpu_to_be64(qp_path_mask);
4895 else
4896 upd_context->primary_addr_path_mask =
4897 cpu_to_be64(qp_path_mask | qp_path_mask_vlan_ctrl);
4898 if (work->vlan_id == MLX4_VGT) {
4899 upd_context->qp_context.param3 = qp->param3;
4900 upd_context->qp_context.pri_path.vlan_control = qp->vlan_control;
4901 upd_context->qp_context.pri_path.fvl_rx = qp->fvl_rx;
4902 upd_context->qp_context.pri_path.vlan_index = qp->vlan_index;
4903 upd_context->qp_context.pri_path.fl = qp->pri_path_fl;
4904 upd_context->qp_context.pri_path.feup = qp->feup;
4905 upd_context->qp_context.pri_path.sched_queue =
4906 qp->sched_queue;
4907 } else {
4908 upd_context->qp_context.param3 = qp->param3 & ~cpu_to_be32(MLX4_STRIP_VLAN);
4909 upd_context->qp_context.pri_path.vlan_control = vlan_control;
4910 upd_context->qp_context.pri_path.vlan_index = work->vlan_ix;
4911 upd_context->qp_context.pri_path.fvl_rx =
4912 qp->fvl_rx | MLX4_FVL_RX_FORCE_ETH_VLAN;
4913 upd_context->qp_context.pri_path.fl =
4914 qp->pri_path_fl | MLX4_FL_CV | MLX4_FL_ETH_HIDE_CQE_VLAN;
4915 upd_context->qp_context.pri_path.feup =
4916 qp->feup | MLX4_FEUP_FORCE_ETH_UP | MLX4_FVL_FORCE_ETH_VLAN;
4917 upd_context->qp_context.pri_path.sched_queue =
4918 qp->sched_queue & 0xC7;
4919 upd_context->qp_context.pri_path.sched_queue |=
4920 ((work->qos & 0x7) << 3);
4921 upd_context->qp_mask |=
4922 cpu_to_be64(1ULL <<
4923 MLX4_UPD_QP_MASK_QOS_VPP);
4924 upd_context->qp_context.qos_vport =
4925 work->qos_vport;
4926 }
4927
4928 err = mlx4_cmd(dev, mailbox->dma,
4929 qp->local_qpn & 0xffffff,
4930 0, MLX4_CMD_UPDATE_QP,
4931 MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE);
4932 if (err) {
4933 mlx4_info(dev, "UPDATE_QP failed for slave %d, port %d, qpn %d (%d)\n",
4934 work->slave, port, qp->local_qpn, err);
4935 errors++;
4936 }
4937 }
4938 spin_lock_irq(mlx4_tlock(dev));
4939 }
4940 spin_unlock_irq(mlx4_tlock(dev));
4941 mlx4_free_cmd_mailbox(dev, mailbox);
4942
4943 if (errors)
4944 mlx4_err(dev, "%d UPDATE_QP failures for slave %d, port %d\n",
4945 errors, work->slave, work->port);
4946
4947
4948
4949
4950 if (work->flags & MLX4_VF_IMMED_VLAN_FLAG_VLAN && !errors &&
4951 NO_INDX != work->orig_vlan_ix)
4952 __mlx4_unregister_vlan(&work->priv->dev, work->port,
4953 work->orig_vlan_id);
4954out:
4955 kfree(work);
4956 return;
4957}
4958
