summaryrefslogtreecommitdiffstats
path: root/drivers/infiniband/hw/mlx5/mlx5_ib.h
blob: f16c818ad2e62f6cd507b80b096a06d3c0e73164 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
/*
 * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#ifndef MLX5_IB_H
#define MLX5_IB_H

#include <linux/kernel.h>
#include <linux/sched.h>
#include <rdma/ib_verbs.h>
#include <rdma/ib_smi.h>
#include <linux/mlx5/driver.h>
#include <linux/mlx5/cq.h>
#include <linux/mlx5/qp.h>
#include <linux/mlx5/srq.h>
#include <linux/types.h>
#include <linux/mlx5/transobj.h>
#include <rdma/ib_user_verbs.h>

#define mlx5_ib_dbg(dev, format, arg...)				\
pr_debug("%s:%s:%d:(pid %d): " format, (dev)->ib_dev.name, __func__,	\
	 __LINE__, current->pid, ##arg)

#define mlx5_ib_err(dev, format, arg...)				\
pr_err("%s:%s:%d:(pid %d): " format, (dev)->ib_dev.name, __func__,	\
	__LINE__, current->pid, ##arg)

#define mlx5_ib_warn(dev, format, arg...)				\
pr_warn("%s:%s:%d:(pid %d): " format, (dev)->ib_dev.name, __func__,	\
	__LINE__, current->pid, ##arg)

#define field_avail(type, fld, sz) (offsetof(type, fld) +		\
				    sizeof(((type *)0)->fld) <= (sz))
#define MLX5_IB_DEFAULT_UIDX 0xffffff
#define MLX5_USER_ASSIGNED_UIDX_MASK __mlx5_mask(qpc, user_index)

enum {
	MLX5_IB_MMAP_CMD_SHIFT	= 8,
	MLX5_IB_MMAP_CMD_MASK	= 0xff,
};

enum mlx5_ib_mmap_cmd {
	MLX5_IB_MMAP_REGULAR_PAGE		= 0,
	MLX5_IB_MMAP_GET_CONTIGUOUS_PAGES	= 1,
	/* 5 is chosen in order to be compatible with old versions of libmlx5 */
	MLX5_IB_MMAP_CORE_CLOCK			= 5,
};

enum {
	MLX5_RES_SCAT_DATA32_CQE	= 0x1,
	MLX5_RES_SCAT_DATA64_CQE	= 0x2,
	MLX5_REQ_SCAT_DATA32_CQE	= 0x11,
	MLX5_REQ_SCAT_DATA64_CQE	= 0x22,
};

enum mlx5_ib_latency_class {
	MLX5_IB_LATENCY_CLASS_LOW,
	MLX5_IB_LATENCY_CLASS_MEDIUM,
	MLX5_IB_LATENCY_CLASS_HIGH,
	MLX5_IB_LATENCY_CLASS_FAST_PATH
};

enum mlx5_ib_mad_ifc_flags {
	MLX5_MAD_IFC_IGNORE_MKEY	= 1,
	MLX5_MAD_IFC_IGNORE_BKEY	= 2,
	MLX5_MAD_IFC_NET_VIEW		= 4,
};

enum {
	MLX5_CROSS_CHANNEL_UUAR         = 0,
};

enum {
	MLX5_CQE_VERSION_V0,
	MLX5_CQE_VERSION_V1,
};

struct mlx5_ib_ucontext {
	struct ib_ucontext	ibucontext;
	struct list_head	db_page_list;

	/* protect doorbell record alloc/free
	 */
	struct mutex		db_page_mutex;
	struct mlx5_uuar_info	uuari;
	u8			cqe_version;
	/* Transport Domain number */
	u32			tdn;
};

static inline struct mlx5_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext)
{
	return container_of(ibucontext, struct mlx5_ib_ucontext, ibucontext);
}

struct mlx5_ib_pd {
	struct ib_pd		ibpd;
	u32			pdn;
};

#define MLX5_IB_FLOW_MCAST_PRIO		(MLX5_BY_PASS_NUM_PRIOS - 1)
#define MLX5_IB_FLOW_LAST_PRIO		(MLX5_BY_PASS_NUM_REGULAR_PRIOS - 1)
#if (MLX5_IB_FLOW_LAST_PRIO <= 0)
#error "Invalid number of bypass priorities"
#endif
#define MLX5_IB_FLOW_LEFTOVERS_PRIO	(MLX5_IB_FLOW_MCAST_PRIO + 1)

#define MLX5_IB_NUM_FLOW_FT		(MLX5_IB_FLOW_LEFTOVERS_PRIO + 1)
struct mlx5_ib_flow_prio {
	struct mlx5_flow_table		*flow_table;
	unsigned int			refcount;
};

struct mlx5_ib_flow_handler {
	struct list_head		list;
	struct ib_flow			ibflow;
	unsigned int			prio;
	struct mlx5_flow_rule	*rule;
};

struct mlx5_ib_flow_db {
	struct mlx5_ib_flow_prio	prios[MLX5_IB_NUM_FLOW_FT];
	/* Protect flow steering bypass flow tables
	 * when add/del flow rules.
	 * only single add/removal of flow steering rule could be done
	 * simultaneously.
	 */
	struct mutex			lock;
};

/* Use macros here so that don't have to duplicate
 * enum ib_send_flags and enum ib_qp_type for low-level driver
 */

#define MLX5_IB_SEND_UMR_UNREG	IB_SEND_RESERVED_START
#define MLX5_IB_SEND_UMR_FAIL_IF_FREE (IB_SEND_RESERVED_START << 1)
#define MLX5_IB_SEND_UMR_UPDATE_MTT (IB_SEND_RESERVED_START << 2)

#define MLX5_IB_SEND_UMR_UPDATE_TRANSLATION	(IB_SEND_RESERVED_START << 3)
#define MLX5_IB_SEND_UMR_UPDATE_PD		(IB_SEND_RESERVED_START << 4)
#define MLX5_IB_SEND_UMR_UPDATE_ACCESS		IB_SEND_RESERVED_END

#define MLX5_IB_QPT_REG_UMR	IB_QPT_RESERVED1
/*
 * IB_QPT_GSI creates the software wrapper around GSI, and MLX5_IB_QPT_HW_GSI
 * creates the actual hardware QP.
 */
#define MLX5_IB_QPT_HW_GSI	IB_QPT_RESERVED2
#define MLX5_IB_WR_UMR		IB_WR_RESERVED1

/* Private QP creation flags to be passed in ib_qp_init_attr.create_flags.
 *
 * These flags are intended for internal use by the mlx5_ib driver, and they
 * rely on the range reserved for that use in the ib_qp_create_flags enum.
 */

/* Create a UD QP whose source QP number is 1 */
static inline enum ib_qp_create_flags mlx5_ib_create_qp_sqpn_qp1(void)
{
	return IB_QP_CREATE_RESERVED_START;
}

struct wr_list {
	u16	opcode;
	u16	next;
};

struct mlx5_ib_wq {
	u64		       *wrid;
	u32		       *wr_data;
	struct wr_list	       *w_list;
	unsigned	       *wqe_head;
	u16		        unsig_count;

	/* serialize post to the work queue
	 */
	spinlock_t		lock;
	int			wqe_cnt;
	int			max_post;
	int			max_gs;
	int			offset;
	int			wqe_shift;
	unsigned		head;
	unsigned		tail;
	u16			cur_post;
	u16			last_poll;
	void		       *qend;
};

enum {
	MLX5_QP_USER,
	MLX5_QP_KERNEL,
	MLX5_QP_EMPTY
};

/*
 * Connect-IB can trigger up to four concurrent pagefaults
 * per-QP.
 */
enum mlx5_ib_pagefault_context {
	MLX5_IB_PAGEFAULT_RESPONDER_READ,
	MLX5_IB_PAGEFAULT_REQUESTOR_READ,
	MLX5_IB_PAGEFAULT_RESPONDER_WRITE,
	MLX5_IB_PAGEFAULT_REQUESTOR_WRITE,
	MLX5_IB_PAGEFAULT_CONTEXTS
};

static inline enum mlx5_ib_pagefault_context
	mlx5_ib_get_pagefault_context(struct mlx5_pagefault *pagefault)
{
	return pagefault->flags & (MLX5_PFAULT_REQUESTOR | MLX5_PFAULT_WRITE);
}

struct mlx5_ib_pfault {
	struct work_struct	work;
	struct mlx5_pagefault	mpfault;
};

struct mlx5_ib_ubuffer {
	struct ib_umem	       *umem;
	int			buf_size;
	u64			buf_addr;
};

struct mlx5_ib_qp_base {
	struct mlx5_ib_qp	*container_mibqp;
	struct mlx5_core_qp	mqp;
	struct mlx5_ib_ubuffer	ubuffer;
};

struct mlx5_ib_qp_trans {
	struct mlx5_ib_qp_base	base;
	u16			xrcdn;
	u8			alt_port;
	u8			atomic_rd_en;
	u8			resp_depth;
};

struct mlx5_ib_rq {
	struct mlx5_ib_qp_base base;
	struct mlx5_ib_wq	*rq;
	struct mlx5_ib_ubuffer	ubuffer;
	struct mlx5_db		*doorbell;
	u32			tirn;
	u8			state;
};

struct mlx5_ib_sq {
	struct mlx5_ib_qp_base base;
	struct mlx5_ib_wq	*sq;
	struct mlx5_ib_ubuffer  ubuffer;
	struct mlx5_db		*doorbell;
	u32			tisn;
	u8			state;
};

struct mlx5_ib_raw_packet_qp {
	struct mlx5_ib_sq sq;
	struct mlx5_ib_rq rq;
};

struct mlx5_ib_qp {
	struct ib_qp		ibqp;
	union {
		struct mlx5_ib_qp_trans trans_qp;
		struct mlx5_ib_raw_packet_qp raw_packet_qp;
	};
	struct mlx5_buf		buf;

	struct mlx5_db		db;
	struct mlx5_ib_wq	rq;

	u8			sq_signal_bits;
	u8			fm_cache;
	struct mlx5_ib_wq	sq;

	/* serialize qp state modifications
	 */
	struct mutex		mutex;
	u32			flags;
	u8			port;
	u8			state;
	int			wq_sig;
	int			scat_cqe;
	int			max_inline_data;
	struct mlx5_bf	       *bf;
	int			has_rq;

	/* only for user space QPs. For kernel
	 * we have it from the bf object
	 */
	int			uuarn;

	int			create_type;

	/* Store signature errors */
	bool			signature_en;

#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
	/*
	 * A flag that is true for QP's that are in a state that doesn't
	 * allow page faults, and shouldn't schedule any more faults.
	 */
	int                     disable_page_faults;
	/*
	 * The disable_page_faults_lock protects a QP's disable_page_faults
	 * field, allowing for a thread to atomically check whether the QP
	 * allows page faults, and if so schedule a page fault.
	 */
	spinlock_t              disable_page_faults_lock;
	struct mlx5_ib_pfault	pagefaults[MLX5_IB_PAGEFAULT_CONTEXTS];
#endif
};

struct mlx5_ib_cq_buf {
	struct mlx5_buf		buf;
	struct ib_umem		*umem;
	int			cqe_size;
	int			nent;
};

enum mlx5_ib_qp_flags {
	MLX5_IB_QP_LSO                          = IB_QP_CREATE_IPOIB_UD_LSO,
	MLX5_IB_QP_BLOCK_MULTICAST_LOOPBACK     = IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK,
	MLX5_IB_QP_CROSS_CHANNEL            = IB_QP_CREATE_CROSS_CHANNEL,
	MLX5_IB_QP_MANAGED_SEND             = IB_QP_CREATE_MANAGED_SEND,
	MLX5_IB_QP_MANAGED_RECV             = IB_QP_CREATE_MANAGED_RECV,
	MLX5_IB_QP_SIGNATURE_HANDLING           = 1 << 5,
	/* QP uses 1 as its source QP number */
	MLX5_IB_QP_SQPN_QP1			= 1 << 6,
};

struct mlx5_umr_wr {
	struct ib_send_wr		wr;
	union {
		u64			virt_addr;
		u64			offset;
	} target;
	struct ib_pd		       *pd;
	unsigned int			page_shift;
	unsigned int			npages;
	u32				length;
	int				access_flags;
	u32				mkey;
};

static inline struct mlx5_umr_wr *umr_wr(struct ib_send_wr *wr)
{
	return container_of(wr, struct mlx5_umr_wr, wr);
}

struct mlx5_shared_mr_info {
	int mr_id;
	struct ib_umem		*umem;
};

struct mlx5_ib_cq {
	struct ib_cq		ibcq;
	struct mlx5_core_cq	mcq;
	struct mlx5_ib_cq_buf	buf;
	struct mlx5_db		db;

	/* serialize access to the CQ
	 */
	spinlock_t		lock;

	/* protect resize cq
	 */
	struct mutex		resize_mutex;
	struct mlx5_ib_cq_buf  *resize_buf;
	struct ib_umem	       *resize_umem;
	int			cqe_size;
	u32			create_flags;
	struct list_head	wc_list;
	enum ib_cq_notify_flags notify_flags;
	struct work_struct	notify_work;
};

struct mlx5_ib_wc {
	struct ib_wc wc;
	struct list_head list;
};

struct mlx5_ib_srq {
	struct ib_srq		ibsrq;
	struct mlx5_core_srq	msrq;
	struct mlx5_buf		buf;
	struct mlx5_db		db;
	u64		       *wrid;
	/* protect SRQ hanlding
	 */
	spinlock_t		lock;
	int			head;
	int			tail;
	u16			wqe_ctr;
	struct ib_umem	       *umem;
	/* serialize arming a SRQ
	 */
	struct mutex		mutex;
	int			wq_sig;
};

struct mlx5_ib_xrcd {
	struct ib_xrcd		ibxrcd;
	u32			xrcdn;
};

enum mlx5_ib_mtt_access_flags {
	MLX5_IB_MTT_READ  = (1 << 0),
	MLX5_IB_MTT_WRITE = (1 << 1),
};

#define MLX5_IB_MTT_PRESENT (MLX5_IB_MTT_READ | MLX5_IB_MTT_WRITE)

struct mlx5_ib_mr {
	struct ib_mr		ibmr;
	void			*descs;
	dma_addr_t		desc_map;
	int			ndescs;
	int			max_descs;
	int			desc_size;
	int			access_mode;
	struct mlx5_core_mkey	mmkey;
	struct ib_umem	       *umem;
	struct mlx5_shared_mr_info	*smr_info;
	struct list_head	list;
	int			order;
	int			umred;
	int			npages;
	struct mlx5_ib_dev     *dev;
	struct mlx5_create_mkey_mbox_out out;
	struct mlx5_core_sig_ctx    *sig;
	int			live;
	void			*descs_alloc;
	int			access_flags; /* Needed for rereg MR */
};

struct mlx5_ib_mw {
	struct ib_mw		ibmw;
	struct mlx5_core_mkey	mmkey;
};

struct mlx5_ib_umr_context {
	struct ib_cqe		cqe;
	enum ib_wc_status	status;
	struct completion	done;
};

struct umr_common {
	struct ib_pd	*pd;
	struct ib_cq	*cq;
	struct ib_qp	*qp;
	/* control access to UMR QP
	 */
	struct semaphore	sem;
};

enum {
	MLX5_FMR_INVALID,
	MLX5_FMR_VALID,
	MLX5_FMR_BUSY,
};

struct mlx5_cache_ent {
	struct list_head	head;
	/* sync access to the cahce entry
	 */
	spinlock_t		lock;


	struct dentry	       *dir;
	char                    name[4];
	u32                     order;
	u32			size;
	u32                     cur;
	u32                     miss;
	u32			limit;

	struct dentry          *fsize;
	struct dentry          *fcur;
	struct dentry          *fmiss;
	struct dentry          *flimit;

	struct mlx5_ib_dev     *dev;
	struct work_struct	work;
	struct delayed_work	dwork;
	int			pending;
};

struct mlx5_mr_cache {
	struct workqueue_struct *wq;
	struct mlx5_cache_ent	ent[MAX_MR_CACHE_ENTRIES];
	int			stopped;
	struct dentry		*root;
	unsigned long		last_add;
};

struct mlx5_ib_gsi_qp;

struct mlx5_ib_port_resources {
	struct mlx5_ib_resources *devr;
	struct mlx5_ib_gsi_qp *gsi;
	struct work_struct pkey_change_work;
};

struct mlx5_ib_resources {
	struct ib_cq	*c0;
	struct ib_xrcd	*x0;
	struct ib_xrcd	*x1;
	struct ib_pd	*p0;
	struct ib_srq	*s0;
	struct ib_srq	*s1;
	struct mlx5_ib_port_resources ports[2];
	/* Protects changes to the port resources */
	struct mutex	mutex;
};

struct mlx5_roce {
	/* Protect mlx5_ib_get_netdev from invoking dev_hold() with a NULL
	 * netdev pointer
	 */
	rwlock_t		netdev_lock;
	struct net_device	*netdev;
	struct notifier_block	nb;
};

struct mlx5_ib_dev {
	struct ib_device		ib_dev;
	struct mlx5_core_dev		*mdev;
	struct mlx5_roce		roce;
	MLX5_DECLARE_DOORBELL_LOCK(uar_lock);
	int				num_ports;
	/* serialize update of capability mask
	 */
	struct mutex			cap_mask_mutex;
	bool				ib_active;
	struct umr_common		umrc;
	/* sync used page count stats
	 */
	struct mlx5_ib_resources	devr;
	struct mlx5_mr_cache		cache;
	struct timer_list		delay_timer;
	int				fill_delay;
#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
	struct ib_odp_caps	odp_caps;
	/*
	 * Sleepable RCU that prevents destruction of MRs while they are still
	 * being used by a page fault handler.
	 */
	struct srcu_struct      mr_srcu;
#endif
	struct mlx5_ib_flow_db	flow_db;
};

static inline struct mlx5_ib_cq *to_mibcq(struct mlx5_core_cq *mcq)
{
	return container_of(mcq, struct mlx5_ib_cq, mcq);
}

static inline struct mlx5_ib_xrcd *to_mxrcd(struct ib_xrcd *ibxrcd)
{
	return container_of(ibxrcd, struct mlx5_ib_xrcd, ibxrcd);
}

static inline struct mlx5_ib_dev *to_mdev(struct ib_device *ibdev)
{
	return container_of(ibdev, struct mlx5_ib_dev, ib_dev);
}

static inline struct mlx5_ib_cq *to_mcq(struct ib_cq *ibcq)
{
	return container_of(ibcq, struct mlx5_ib_cq, ibcq);
}

static inline struct mlx5_ib_qp *to_mibqp(struct mlx5_core_qp *mqp)
{
	return container_of(mqp, struct mlx5_ib_qp_base, mqp)->container_mibqp;
}

static inline struct mlx5_ib_mr *to_mibmr(struct mlx5_core_mkey *mmkey)
{
	return container_of(mmkey, struct mlx5_ib_mr, mmkey);
}

static inline struct mlx5_ib_pd *to_mpd(struct ib_pd *ibpd)
{
	return container_of(ibpd, struct mlx5_ib_pd, ibpd);
}

static inline struct mlx5_ib_srq *to_msrq(struct ib_srq *ibsrq)
{
	return container_of(ibsrq, struct mlx5_ib_srq, ibsrq);
}

static inline struct mlx5_ib_qp *to_mqp(struct ib_qp *ibqp)
{
	return container_of(ibqp, struct mlx5_ib_qp, ibqp);
}

static inline struct mlx5_ib_srq *to_mibsrq(struct mlx5_core_srq *msrq)
{
	return container_of(msrq, struct mlx5_ib_srq, msrq);
}

static inline struct mlx5_ib_mr *to_mmr(struct ib_mr *ibmr)
{
	return container_of(ibmr, struct mlx5_ib_mr, ibmr);
}

static inline struct mlx5_ib_mw *to_mmw(struct ib_mw *ibmw)
{
	return container_of(ibmw, struct mlx5_ib_mw, ibmw);
}

struct mlx5_ib_ah {
	struct ib_ah		ibah;
	struct mlx5_av		av;
};

static inline struct mlx5_ib_ah *to_mah(struct ib_ah *ibah)
{
	return container_of(ibah, struct mlx5_ib_ah, ibah);
}

int mlx5_ib_db_map_user(struct mlx5_ib_ucontext *context, unsigned long virt,
			struct mlx5_db *db);
void mlx5_ib_db_unmap_user(struct mlx5_ib_ucontext *context, struct mlx5_db *db);
void __mlx5_ib_cq_clean(struct mlx5_ib_cq *cq, u32 qpn, struct mlx5_ib_srq *srq);
void mlx5_ib_cq_clean(struct mlx5_ib_cq *cq, u32 qpn, struct mlx5_ib_srq *srq);
void mlx5_ib_free_srq_wqe(struct mlx5_ib_srq *srq, int wqe_index);
int mlx5_MAD_IFC(struct mlx5_ib_dev *dev, int ignore_mkey, int ignore_bkey,
		 u8 port, const struct ib_wc *in_wc, const struct ib_grh *in_grh,
		 const void *in_mad, void *response_mad);
struct ib_ah *mlx5_ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr);
int mlx5_ib_query_ah(struct ib_ah *ibah, struct ib_ah_attr *ah_attr);
int mlx5_ib_destroy_ah(struct ib_ah *ah);
struct ib_srq *mlx5_ib_create_srq(struct ib_pd *pd,
				  struct ib_srq_init_attr *init_attr,
				  struct ib_udata *udata);
int mlx5_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
		       enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
int mlx5_ib_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *srq_attr);
int mlx5_ib_destroy_srq(struct ib_srq *srq);
int mlx5_ib_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
			  struct ib_recv_wr **bad_wr);
struct ib_qp *mlx5_ib_create_qp(struct ib_pd *pd,
				struct ib_qp_init_attr *init_attr,
				struct ib_udata *udata);
int mlx5_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
		      int attr_mask, struct ib_udata *udata);
int mlx5_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask,
		     struct ib_qp_init_attr *qp_init_attr);
int mlx5_ib_destroy_qp(struct ib_qp *qp);
int mlx5_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
		      struct ib_send_wr **bad_wr);
int mlx5_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
		      struct ib_recv_wr **bad_wr);
void *mlx5_get_send_wqe(struct mlx5_ib_qp *qp, int n);
int mlx5_ib_read_user_wqe(struct mlx5_ib_qp *qp, int send, int wqe_index,
			  void *buffer, u32 length,
			  struct mlx5_ib_qp_base *base);
struct ib_cq *mlx5_ib_create_cq(struct ib_device *ibdev,
				const struct ib_cq_init_attr *attr,
				struct ib_ucontext *context,
				struct ib_udata *udata);
int mlx5_ib_destroy_cq(struct ib_cq *cq);
int mlx5_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
int mlx5_ib_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags);
int mlx5_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period);
int mlx5_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata);
struct ib_mr *mlx5_ib_get_dma_mr(struct ib_pd *pd, int acc);
struct ib_mr *mlx5_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
				  u64 virt_addr, int access_flags,
				  struct ib_udata *udata);
struct ib_mw *mlx5_ib_alloc_mw(struct ib_pd *pd, enum ib_mw_type type,
			       struct ib_udata *udata);
int mlx5_ib_dealloc_mw(struct ib_mw *mw);
int mlx5_ib_update_mtt(struct mlx5_ib_mr *mr, u64 start_page_index,
		       int npages, int zap);
int mlx5_ib_rereg_user_mr(struct ib_mr *ib_mr, int flags, u64 start,
			  u64 length, u64 virt_addr, int access_flags,
			  struct ib_pd *pd, struct ib_udata *udata);
int mlx5_ib_dereg_mr(struct ib_mr *ibmr);
struct ib_mr *mlx5_ib_alloc_mr(struct ib_pd *pd,
			       enum ib_mr_type mr_type,
			       u32 max_num_sg);
int mlx5_ib_map_mr_sg(struct ib_mr *ibmr,
		      struct scatterlist *sg,
		      int sg_nents);
int mlx5_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
			const struct ib_wc *in_wc, const struct ib_grh *in_grh,
			const struct ib_mad_hdr *in, size_t in_mad_size,
			struct ib_mad_hdr *out, size_t *out_mad_size,
			u16 *out_mad_pkey_index);
struct ib_xrcd *mlx5_ib_alloc_xrcd(struct ib_device *ibdev,
					  struct ib_ucontext *context,
					  struct ib_udata *udata);
int mlx5_ib_dealloc_xrcd(struct ib_xrcd *xrcd);
int mlx5_ib_get_buf_offset(u64 addr, int page_shift, u32 *offset);
int mlx5_query_ext_port_caps(struct mlx5_ib_dev *dev, u8 port);
int mlx5_query_mad_ifc_smp_attr_node_info(struct ib_device *ibdev,
					  struct ib_smp *out_mad);
int mlx5_query_mad_ifc_system_image_guid(struct ib_device *ibdev,
					 __be64 *sys_image_guid);
int mlx5_query_mad_ifc_max_pkeys(struct ib_device *ibdev,
				 u16 *max_pkeys);
int mlx5_query_mad_ifc_vendor_id(struct ib_device *ibdev,
				 u32 *vendor_id);
int mlx5_query_mad_ifc_node_desc(struct mlx5_ib_dev *dev, char *node_desc);
int mlx5_query_mad_ifc_node_guid(struct mlx5_ib_dev *dev, __be64 *node_guid);
int mlx5_query_mad_ifc_pkey(struct ib_device *ibdev, u8 port, u16 index,
			    u16 *pkey);
int mlx5_query_mad_ifc_gids(struct ib_device *ibdev, u8 port, int index,
			    union ib_gid *gid);
int mlx5_query_mad_ifc_port(struct ib_device *ibdev, u8 port,
			    struct ib_port_attr *props);
int mlx5_ib_query_port(struct ib_device *ibdev, u8 port,
		       struct ib_port_attr *props);
int mlx5_ib_init_fmr(struct mlx5_ib_dev *dev);
void mlx5_ib_cleanup_fmr(struct mlx5_ib_dev *dev);
void mlx5_ib_cont_pages(struct ib_umem *umem, u64 addr, int *count, int *shift,
			int *ncont, int *order);
void __mlx5_ib_populate_pas(struct mlx5_ib_dev *dev, struct ib_umem *umem,
			    int page_shift, size_t offset, size_t num_pages,
			    __be64 *pas, int access_flags);
void mlx5_ib_populate_pas(struct mlx5_ib_dev *dev, struct ib_umem *umem,
			  int page_shift, __be64 *pas, int access_flags);
void mlx5_ib_copy_pas(u64 *old, u64 *new, int step, int num);
int mlx5_ib_get_cqe_size(struct mlx5_ib_dev *dev, struct ib_cq *ibcq);
int mlx5_mr_cache_init(struct mlx5_ib_dev *dev);
int mlx5_mr_cache_cleanup(struct mlx5_ib_dev *dev);
int mlx5_mr_ib_cont_pages(struct ib_umem *umem, u64 addr, int *count, int *shift);
int mlx5_ib_check_mr_status(struct ib_mr *ibmr, u32 check_mask,
			    struct ib_mr_status *mr_status);

#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
extern struct workqueue_struct *mlx5_ib_page_fault_wq;

void mlx5_ib_internal_fill_odp_caps(struct mlx5_ib_dev *dev);
void mlx5_ib_mr_pfault_handler(struct mlx5_ib_qp *qp,
			       struct mlx5_ib_pfault *pfault);
void mlx5_ib_odp_create_qp(struct mlx5_ib_qp *qp);
int mlx5_ib_odp_init_one(struct mlx5_ib_dev *ibdev);
void mlx5_ib_odp_remove_one(struct mlx5_ib_dev *ibdev);
int __init mlx5_ib_odp_init(void);
void mlx5_ib_odp_cleanup(void);
void mlx5_ib_qp_disable_pagefaults(struct mlx5_ib_qp *qp);
void mlx5_ib_qp_enable_pagefaults(struct mlx5_ib_qp *qp);
void mlx5_ib_invalidate_range(struct ib_umem *umem, unsigned long start,
			      unsigned long end);
int mlx5_ib_get_vf_config(struct ib_device *device, int vf,
			  u8 port, struct ifla_vf_info *info);
int mlx5_ib_set_vf_link_state(struct ib_device *device, int vf,
			      u8 port, int state);
int mlx5_ib_get_vf_stats(struct ib_device *device, int vf,
			 u8 port, struct ifla_vf_stats *stats);
int mlx5_ib_set_vf_guid(struct ib_device *device, int vf, u8 port,
			u64 guid, int type);

#else /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */
static inline void mlx5_ib_internal_fill_odp_caps(struct mlx5_ib_dev *dev)
{
	return;
}

static inline void mlx5_ib_odp_create_qp(struct mlx5_ib_qp *qp)		{}
static inline int mlx5_ib_odp_init_one(struct mlx5_ib_dev *ibdev) { return 0; }
static inline void mlx5_ib_odp_remove_one(struct mlx5_ib_dev *ibdev)	{}
static inline int mlx5_ib_odp_init(void) { return 0; }
static inline void mlx5_ib_odp_cleanup(void)				{}
static inline void mlx5_ib_qp_disable_pagefaults(struct mlx5_ib_qp *qp) {}
static inline void mlx5_ib_qp_enable_pagefaults(struct mlx5_ib_qp *qp)  {}

#endif /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */

__be16 mlx5_get_roce_udp_sport(struct mlx5_ib_dev *dev, u8 port_num,
			       int index);

/* GSI QP helper functions */
struct ib_qp *mlx5_ib_gsi_create_qp(struct ib_pd *pd,
				    struct ib_qp_init_attr *init_attr);
int mlx5_ib_gsi_destroy_qp(struct ib_qp *qp);
int mlx5_ib_gsi_modify_qp(struct ib_qp *qp, struct ib_qp_attr *attr,
			  int attr_mask);
int mlx5_ib_gsi_query_qp(struct ib_qp *qp, struct ib_qp_attr *qp_attr,
			 int qp_attr_mask,
			 struct ib_qp_init_attr *qp_init_attr);
int mlx5_ib_gsi_post_send(struct ib_qp *qp, struct ib_send_wr *wr,
			  struct ib_send_wr **bad_wr);
int mlx5_ib_gsi_post_recv(struct ib_qp *qp, struct ib_recv_wr *wr,
			  struct ib_recv_wr **bad_wr);
void mlx5_ib_gsi_pkey_change(struct mlx5_ib_gsi_qp *gsi);

int mlx5_ib_generate_wc(struct ib_cq *ibcq, struct ib_wc *wc);

static inline void init_query_mad(struct ib_smp *mad)
{
	mad->base_version  = 1;
	mad->mgmt_class    = IB_MGMT_CLASS_SUBN_LID_ROUTED;
	mad->class_version = 1;
	mad->method	   = IB_MGMT_METHOD_GET;
}

static inline u8 convert_access(int acc)
{
	return (acc & IB_ACCESS_REMOTE_ATOMIC ? MLX5_PERM_ATOMIC       : 0) |
	       (acc & IB_ACCESS_REMOTE_WRITE  ? MLX5_PERM_REMOTE_WRITE : 0) |
	       (acc & IB_ACCESS_REMOTE_READ   ? MLX5_PERM_REMOTE_READ  : 0) |
	       (acc & IB_ACCESS_LOCAL_WRITE   ? MLX5_PERM_LOCAL_WRITE  : 0) |
	       MLX5_PERM_LOCAL_READ;
}

static inline int is_qp1(enum ib_qp_type qp_type)
{
	return qp_type == MLX5_IB_QPT_HW_GSI;
}

#define MLX5_MAX_UMR_SHIFT 16
#define MLX5_MAX_UMR_PAGES (1 << MLX5_MAX_UMR_SHIFT)

static inline u32 check_cq_create_flags(u32 flags)
{
	/*
	 * It returns non-zero value for unsupported CQ
	 * create flags, otherwise it returns zero.
	 */
	return (flags & ~(IB_CQ_FLAGS_IGNORE_OVERRUN |
			  IB_CQ_FLAGS_TIMESTAMP_COMPLETION));
}

static inline int verify_assign_uidx(u8 cqe_version, u32 cmd_uidx,
				     u32 *user_index)
{
	if (cqe_version) {
		if ((cmd_uidx == MLX5_IB_DEFAULT_UIDX) ||
		    (cmd_uidx & ~MLX5_USER_ASSIGNED_UIDX_MASK))
			return -EINVAL;
		*user_index = cmd_uidx;
	} else {
		*user_index = MLX5_IB_DEFAULT_UIDX;
	}

	return 0;
}
#endif /* MLX5_IB_H */