summaryrefslogtreecommitdiff
path: root/include/linux/mlx5/driver.h
blob: dcd5ac8d3b1403875bce11aeddaf106acc0cd218 (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
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
/*
 * 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_DRIVER_H
#define MLX5_DRIVER_H

#include <linux/kernel.h>
#include <linux/completion.h>
#include <linux/pci.h>
#include <linux/spinlock_types.h>
#include <linux/semaphore.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/radix-tree.h>

#include <linux/mlx5/device.h>
#include <linux/mlx5/doorbell.h>

enum {
	MLX5_BOARD_ID_LEN = 64,
	MLX5_MAX_NAME_LEN = 16,
};

enum {
	/* one minute for the sake of bringup. Generally, commands must always
	 * complete and we may need to increase this timeout value
	 */
	MLX5_CMD_TIMEOUT_MSEC	= 60 * 1000,
	MLX5_CMD_WQ_MAX_NAME	= 32,
};

enum {
	CMD_OWNER_SW		= 0x0,
	CMD_OWNER_HW		= 0x1,
	CMD_STATUS_SUCCESS	= 0,
};

enum mlx5_sqp_t {
	MLX5_SQP_SMI		= 0,
	MLX5_SQP_GSI		= 1,
	MLX5_SQP_IEEE_1588	= 2,
	MLX5_SQP_SNIFFER	= 3,
	MLX5_SQP_SYNC_UMR	= 4,
};

enum {
	MLX5_MAX_PORTS	= 2,
};

enum {
	MLX5_EQ_VEC_PAGES	 = 0,
	MLX5_EQ_VEC_CMD		 = 1,
	MLX5_EQ_VEC_ASYNC	 = 2,
	MLX5_EQ_VEC_COMP_BASE,
};

enum {
	MLX5_MAX_IRQ_NAME	= 32
};

enum {
	MLX5_ATOMIC_MODE_IB_COMP	= 1 << 16,
	MLX5_ATOMIC_MODE_CX		= 2 << 16,
	MLX5_ATOMIC_MODE_8B		= 3 << 16,
	MLX5_ATOMIC_MODE_16B		= 4 << 16,
	MLX5_ATOMIC_MODE_32B		= 5 << 16,
	MLX5_ATOMIC_MODE_64B		= 6 << 16,
	MLX5_ATOMIC_MODE_128B		= 7 << 16,
	MLX5_ATOMIC_MODE_256B		= 8 << 16,
};

enum {
	MLX5_REG_QETCR		 = 0x4005,
	MLX5_REG_QTCT		 = 0x400a,
	MLX5_REG_PCAP		 = 0x5001,
	MLX5_REG_PMTU		 = 0x5003,
	MLX5_REG_PTYS		 = 0x5004,
	MLX5_REG_PAOS		 = 0x5006,
	MLX5_REG_PFCC            = 0x5007,
	MLX5_REG_PPCNT		 = 0x5008,
	MLX5_REG_PMAOS		 = 0x5012,
	MLX5_REG_PUDE		 = 0x5009,
	MLX5_REG_PMPE		 = 0x5010,
	MLX5_REG_PELC		 = 0x500e,
	MLX5_REG_PVLC		 = 0x500f,
	MLX5_REG_PMLP		 = 0, /* TBD */
	MLX5_REG_NODE_DESC	 = 0x6001,
	MLX5_REG_HOST_ENDIANNESS = 0x7004,
};

enum {
	MLX5_ATOMIC_OPS_CMP_SWAP	= 1 << 0,
	MLX5_ATOMIC_OPS_FETCH_ADD	= 1 << 1,
};

enum mlx5_page_fault_resume_flags {
	MLX5_PAGE_FAULT_RESUME_REQUESTOR = 1 << 0,
	MLX5_PAGE_FAULT_RESUME_WRITE	 = 1 << 1,
	MLX5_PAGE_FAULT_RESUME_RDMA	 = 1 << 2,
	MLX5_PAGE_FAULT_RESUME_ERROR	 = 1 << 7,
};

enum dbg_rsc_type {
	MLX5_DBG_RSC_QP,
	MLX5_DBG_RSC_EQ,
	MLX5_DBG_RSC_CQ,
};

struct mlx5_field_desc {
	struct dentry	       *dent;
	int			i;
};

struct mlx5_rsc_debug {
	struct mlx5_core_dev   *dev;
	void		       *object;
	enum dbg_rsc_type	type;
	struct dentry	       *root;
	struct mlx5_field_desc	fields[0];
};

enum mlx5_dev_event {
	MLX5_DEV_EVENT_SYS_ERROR,
	MLX5_DEV_EVENT_PORT_UP,
	MLX5_DEV_EVENT_PORT_DOWN,
	MLX5_DEV_EVENT_PORT_INITIALIZED,
	MLX5_DEV_EVENT_LID_CHANGE,
	MLX5_DEV_EVENT_PKEY_CHANGE,
	MLX5_DEV_EVENT_GUID_CHANGE,
	MLX5_DEV_EVENT_CLIENT_REREG,
};

enum mlx5_port_status {
	MLX5_PORT_UP        = 1,
	MLX5_PORT_DOWN      = 2,
};

struct mlx5_uuar_info {
	struct mlx5_uar	       *uars;
	int			num_uars;
	int			num_low_latency_uuars;
	unsigned long	       *bitmap;
	unsigned int	       *count;
	struct mlx5_bf	       *bfs;

	/*
	 * protect uuar allocation data structs
	 */
	struct mutex		lock;
	u32			ver;
};

struct mlx5_bf {
	void __iomem	       *reg;
	void __iomem	       *regreg;
	int			buf_size;
	struct mlx5_uar	       *uar;
	unsigned long		offset;
	int			need_lock;
	/* protect blue flame buffer selection when needed
	 */
	spinlock_t		lock;

	/* serialize 64 bit writes when done as two 32 bit accesses
	 */
	spinlock_t		lock32;
	int			uuarn;
};

struct mlx5_cmd_first {
	__be32		data[4];
};

struct mlx5_cmd_msg {
	struct list_head		list;
	struct cache_ent	       *cache;
	u32				len;
	struct mlx5_cmd_first		first;
	struct mlx5_cmd_mailbox	       *next;
};

struct mlx5_cmd_debug {
	struct dentry	       *dbg_root;
	struct dentry	       *dbg_in;
	struct dentry	       *dbg_out;
	struct dentry	       *dbg_outlen;
	struct dentry	       *dbg_status;
	struct dentry	       *dbg_run;
	void		       *in_msg;
	void		       *out_msg;
	u8			status;
	u16			inlen;
	u16			outlen;
};

struct cache_ent {
	/* protect block chain allocations
	 */
	spinlock_t		lock;
	struct list_head	head;
};

struct cmd_msg_cache {
	struct cache_ent	large;
	struct cache_ent	med;

};

struct mlx5_cmd_stats {
	u64		sum;
	u64		n;
	struct dentry  *root;
	struct dentry  *avg;
	struct dentry  *count;
	/* protect command average calculations */
	spinlock_t	lock;
};

struct mlx5_cmd {
	void	       *cmd_alloc_buf;
	dma_addr_t	alloc_dma;
	int		alloc_size;
	void	       *cmd_buf;
	dma_addr_t	dma;
	u16		cmdif_rev;
	u8		log_sz;
	u8		log_stride;
	int		max_reg_cmds;
	int		events;
	u32 __iomem    *vector;

	/* protect command queue allocations
	 */
	spinlock_t	alloc_lock;

	/* protect token allocations
	 */
	spinlock_t	token_lock;
	u8		token;
	unsigned long	bitmask;
	char		wq_name[MLX5_CMD_WQ_MAX_NAME];
	struct workqueue_struct *wq;
	struct semaphore sem;
	struct semaphore pages_sem;
	int	mode;
	struct mlx5_cmd_work_ent *ent_arr[MLX5_MAX_COMMANDS];
	struct pci_pool *pool;
	struct mlx5_cmd_debug dbg;
	struct cmd_msg_cache cache;
	int checksum_disabled;
	struct mlx5_cmd_stats stats[MLX5_CMD_OP_MAX];
};

struct mlx5_port_caps {
	int	gid_table_len;
	int	pkey_table_len;
	u8	ext_port_cap;
};

struct mlx5_cmd_mailbox {
	void	       *buf;
	dma_addr_t	dma;
	struct mlx5_cmd_mailbox *next;
};

struct mlx5_buf_list {
	void		       *buf;
	dma_addr_t		map;
};

struct mlx5_buf {
	struct mlx5_buf_list	direct;
	int			npages;
	int			size;
	u8			page_shift;
};

struct mlx5_eq {
	struct mlx5_core_dev   *dev;
	__be32 __iomem	       *doorbell;
	u32			cons_index;
	struct mlx5_buf		buf;
	int			size;
	unsigned int		irqn;
	u8			eqn;
	int			nent;
	u64			mask;
	struct list_head	list;
	int			index;
	struct mlx5_rsc_debug	*dbg;
};

struct mlx5_core_psv {
	u32	psv_idx;
	struct psv_layout {
		u32	pd;
		u16	syndrome;
		u16	reserved;
		u16	bg;
		u16	app_tag;
		u32	ref_tag;
	} psv;
};

struct mlx5_core_sig_ctx {
	struct mlx5_core_psv	psv_memory;
	struct mlx5_core_psv	psv_wire;
	struct ib_sig_err       err_item;
	bool			sig_status_checked;
	bool			sig_err_exists;
	u32			sigerr_count;
};

struct mlx5_core_mkey {
	u64			iova;
	u64			size;
	u32			key;
	u32			pd;
};

enum mlx5_res_type {
	MLX5_RES_QP	= MLX5_EVENT_QUEUE_TYPE_QP,
	MLX5_RES_RQ	= MLX5_EVENT_QUEUE_TYPE_RQ,
	MLX5_RES_SQ	= MLX5_EVENT_QUEUE_TYPE_SQ,
	MLX5_RES_SRQ	= 3,
	MLX5_RES_XSRQ	= 4,
};

struct mlx5_core_rsc_common {
	enum mlx5_res_type	res;
	atomic_t		refcount;
	struct completion	free;
};

struct mlx5_core_srq {
	struct mlx5_core_rsc_common	common; /* must be first */
	u32		srqn;
	int		max;
	int		max_gs;
	int		max_avail_gather;
	int		wqe_shift;
	void (*event)	(struct mlx5_core_srq *, enum mlx5_event);

	atomic_t		refcount;
	struct completion	free;
};

struct mlx5_eq_table {
	void __iomem	       *update_ci;
	void __iomem	       *update_arm_ci;
	struct list_head	comp_eqs_list;
	struct mlx5_eq		pages_eq;
	struct mlx5_eq		async_eq;
	struct mlx5_eq		cmd_eq;
	int			num_comp_vectors;
	/* protect EQs list
	 */
	spinlock_t		lock;
};

struct mlx5_uar {
	u32			index;
	struct list_head	bf_list;
	unsigned		free_bf_bmap;
	void __iomem	       *bf_map;
	void __iomem	       *map;
};


struct mlx5_core_health {
	struct health_buffer __iomem   *health;
	__be32 __iomem		       *health_counter;
	struct timer_list		timer;
	u32				prev;
	int				miss_counter;
	bool				sick;
	struct workqueue_struct	       *wq;
	struct work_struct		work;
};

struct mlx5_cq_table {
	/* protect radix tree
	 */
	spinlock_t		lock;
	struct radix_tree_root	tree;
};

struct mlx5_qp_table {
	/* protect radix tree
	 */
	spinlock_t		lock;
	struct radix_tree_root	tree;
};

struct mlx5_srq_table {
	/* protect radix tree
	 */
	spinlock_t		lock;
	struct radix_tree_root	tree;
};

struct mlx5_mkey_table {
	/* protect radix tree
	 */
	rwlock_t		lock;
	struct radix_tree_root	tree;
};

struct mlx5_vf_context {
	int	enabled;
};

struct mlx5_core_sriov {
	struct mlx5_vf_context	*vfs_ctx;
	int			num_vfs;
	int			enabled_vfs;
};

struct mlx5_irq_info {
	cpumask_var_t mask;
	char name[MLX5_MAX_IRQ_NAME];
};

struct mlx5_eswitch;

struct mlx5_priv {
	char			name[MLX5_MAX_NAME_LEN];
	struct mlx5_eq_table	eq_table;
	struct msix_entry	*msix_arr;
	struct mlx5_irq_info	*irq_info;
	struct mlx5_uuar_info	uuari;
	MLX5_DECLARE_DOORBELL_LOCK(cq_uar_lock);

	/* pages stuff */
	struct workqueue_struct *pg_wq;
	struct rb_root		page_root;
	int			fw_pages;
	atomic_t		reg_pages;
	struct list_head	free_list;
	int			vfs_pages;

	struct mlx5_core_health health;

	struct mlx5_srq_table	srq_table;

	/* start: qp staff */
	struct mlx5_qp_table	qp_table;
	struct dentry	       *qp_debugfs;
	struct dentry	       *eq_debugfs;
	struct dentry	       *cq_debugfs;
	struct dentry	       *cmdif_debugfs;
	/* end: qp staff */

	/* start: cq staff */
	struct mlx5_cq_table	cq_table;
	/* end: cq staff */

	/* start: mkey staff */
	struct mlx5_mkey_table	mkey_table;
	/* end: mkey staff */

	/* start: alloc staff */
	/* protect buffer alocation according to numa node */
	struct mutex            alloc_mutex;
	int                     numa_node;

	struct mutex            pgdir_mutex;
	struct list_head        pgdir_list;
	/* end: alloc staff */
	struct dentry	       *dbg_root;

	/* protect mkey key part */
	spinlock_t		mkey_lock;
	u8			mkey_key;

	struct list_head        dev_list;
	struct list_head        ctx_list;
	spinlock_t              ctx_lock;

	struct mlx5_eswitch     *eswitch;
	struct mlx5_core_sriov	sriov;
	unsigned long		pci_dev_data;
	struct mlx5_flow_root_namespace *root_ns;
	struct mlx5_flow_root_namespace *fdb_root_ns;
};

enum mlx5_device_state {
	MLX5_DEVICE_STATE_UP,
	MLX5_DEVICE_STATE_INTERNAL_ERROR,
};

enum mlx5_interface_state {
	MLX5_INTERFACE_STATE_DOWN,
	MLX5_INTERFACE_STATE_UP,
};

enum mlx5_pci_status {
	MLX5_PCI_STATUS_DISABLED,
	MLX5_PCI_STATUS_ENABLED,
};

struct mlx5_core_dev {
	struct pci_dev	       *pdev;
	/* sync pci state */
	struct mutex		pci_status_mutex;
	enum mlx5_pci_status	pci_status;
	u8			rev_id;
	char			board_id[MLX5_BOARD_ID_LEN];
	struct mlx5_cmd		cmd;
	struct mlx5_port_caps	port_caps[MLX5_MAX_PORTS];
	u32 hca_caps_cur[MLX5_CAP_NUM][MLX5_UN_SZ_DW(hca_cap_union)];
	u32 hca_caps_max[MLX5_CAP_NUM][MLX5_UN_SZ_DW(hca_cap_union)];
	phys_addr_t		iseg_base;
	struct mlx5_init_seg __iomem *iseg;
	enum mlx5_device_state	state;
	/* sync interface state */
	struct mutex		intf_state_mutex;
	enum mlx5_interface_state interface_state;
	void			(*event) (struct mlx5_core_dev *dev,
					  enum mlx5_dev_event event,
					  unsigned long param);
	struct mlx5_priv	priv;
	struct mlx5_profile	*profile;
	atomic_t		num_qps;
	u32			issi;
};

struct mlx5_db {
	__be32			*db;
	union {
		struct mlx5_db_pgdir		*pgdir;
		struct mlx5_ib_user_db_page	*user_page;
	}			u;
	dma_addr_t		dma;
	int			index;
};

enum {
	MLX5_DB_PER_PAGE = PAGE_SIZE / L1_CACHE_BYTES,
};

enum {
	MLX5_COMP_EQ_SIZE = 1024,
};

enum {
	MLX5_PTYS_IB = 1 << 0,
	MLX5_PTYS_EN = 1 << 2,
};

struct mlx5_db_pgdir {
	struct list_head	list;
	DECLARE_BITMAP(bitmap, MLX5_DB_PER_PAGE);
	__be32		       *db_page;
	dma_addr_t		db_dma;
};

typedef void (*mlx5_cmd_cbk_t)(int status, void *context);

struct mlx5_cmd_work_ent {
	struct mlx5_cmd_msg    *in;
	struct mlx5_cmd_msg    *out;
	void		       *uout;
	int			uout_size;
	mlx5_cmd_cbk_t		callback;
	void		       *context;
	int			idx;
	struct completion	done;
	struct mlx5_cmd        *cmd;
	struct work_struct	work;
	struct mlx5_cmd_layout *lay;
	int			ret;
	int			page_queue;
	u8			status;
	u8			token;
	u64			ts1;
	u64			ts2;
	u16			op;
};

struct mlx5_pas {
	u64	pa;
	u8	log_sz;
};

enum port_state_policy {
	MLX5_POLICY_DOWN	= 0,
	MLX5_POLICY_UP		= 1,
	MLX5_POLICY_FOLLOW	= 2,
	MLX5_POLICY_INVALID	= 0xffffffff
};

enum phy_port_state {
	MLX5_AAA_111
};

struct mlx5_hca_vport_context {
	u32			field_select;
	bool			sm_virt_aware;
	bool			has_smi;
	bool			has_raw;
	enum port_state_policy	policy;
	enum phy_port_state	phys_state;
	enum ib_port_state	vport_state;
	u8			port_physical_state;
	u64			sys_image_guid;
	u64			port_guid;
	u64			node_guid;
	u32			cap_mask1;
	u32			cap_mask1_perm;
	u32			cap_mask2;
	u32			cap_mask2_perm;
	u16			lid;
	u8			init_type_reply; /* bitmask: see ib spec 14.2.5.6 InitTypeReply */
	u8			lmc;
	u8			subnet_timeout;
	u16			sm_lid;
	u8			sm_sl;
	u16			qkey_violation_counter;
	u16			pkey_violation_counter;
	bool			grh_required;
};

static inline void *mlx5_buf_offset(struct mlx5_buf *buf, int offset)
{
		return buf->direct.buf + offset;
}

extern struct workqueue_struct *mlx5_core_wq;

#define STRUCT_FIELD(header, field) \
	.struct_offset_bytes = offsetof(struct ib_unpacked_ ## header, field),      \
	.struct_size_bytes   = sizeof((struct ib_unpacked_ ## header *)0)->field

static inline struct mlx5_core_dev *pci2mlx5_core_dev(struct pci_dev *pdev)
{
	return pci_get_drvdata(pdev);
}

extern struct dentry *mlx5_debugfs_root;

static inline u16 fw_rev_maj(struct mlx5_core_dev *dev)
{
	return ioread32be(&dev->iseg->fw_rev) & 0xffff;
}

static inline u16 fw_rev_min(struct mlx5_core_dev *dev)
{
	return ioread32be(&dev->iseg->fw_rev) >> 16;
}

static inline u16 fw_rev_sub(struct mlx5_core_dev *dev)
{
	return ioread32be(&dev->iseg->cmdif_rev_fw_sub) & 0xffff;
}

static inline u16 cmdif_rev(struct mlx5_core_dev *dev)
{
	return ioread32be(&dev->iseg->cmdif_rev_fw_sub) >> 16;
}

static inline void *mlx5_vzalloc(unsigned long size)
{
	void *rtn;

	rtn = kzalloc(size, GFP_KERNEL | __GFP_NOWARN);
	if (!rtn)
		rtn = vzalloc(size);
	return rtn;
}

static inline u32 mlx5_base_mkey(const u32 key)
{
	return key & 0xffffff00u;
}

int mlx5_cmd_init(struct mlx5_core_dev *dev);
void mlx5_cmd_cleanup(struct mlx5_core_dev *dev);
void mlx5_cmd_use_events(struct mlx5_core_dev *dev);
void mlx5_cmd_use_polling(struct mlx5_core_dev *dev);
int mlx5_cmd_status_to_err(struct mlx5_outbox_hdr *hdr);
int mlx5_cmd_status_to_err_v2(void *ptr);
int mlx5_core_get_caps(struct mlx5_core_dev *dev, enum mlx5_cap_type cap_type);
int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out,
		  int out_size);
int mlx5_cmd_exec_cb(struct mlx5_core_dev *dev, void *in, int in_size,
		     void *out, int out_size, mlx5_cmd_cbk_t callback,
		     void *context);
int mlx5_cmd_alloc_uar(struct mlx5_core_dev *dev, u32 *uarn);
int mlx5_cmd_free_uar(struct mlx5_core_dev *dev, u32 uarn);
int mlx5_alloc_uuars(struct mlx5_core_dev *dev, struct mlx5_uuar_info *uuari);
int mlx5_free_uuars(struct mlx5_core_dev *dev, struct mlx5_uuar_info *uuari);
int mlx5_alloc_map_uar(struct mlx5_core_dev *mdev, struct mlx5_uar *uar,
		       bool map_wc);
void mlx5_unmap_free_uar(struct mlx5_core_dev *mdev, struct mlx5_uar *uar);
void mlx5_health_cleanup(struct mlx5_core_dev *dev);
int mlx5_health_init(struct mlx5_core_dev *dev);
void mlx5_start_health_poll(struct mlx5_core_dev *dev);
void mlx5_stop_health_poll(struct mlx5_core_dev *dev);
int mlx5_buf_alloc_node(struct mlx5_core_dev *dev, int size,
			struct mlx5_buf *buf, int node);
int mlx5_buf_alloc(struct mlx5_core_dev *dev, int size, struct mlx5_buf *buf);
void mlx5_buf_free(struct mlx5_core_dev *dev, struct mlx5_buf *buf);
struct mlx5_cmd_mailbox *mlx5_alloc_cmd_mailbox_chain(struct mlx5_core_dev *dev,
						      gfp_t flags, int npages);
void mlx5_free_cmd_mailbox_chain(struct mlx5_core_dev *dev,
				 struct mlx5_cmd_mailbox *head);
int mlx5_core_create_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
			 struct mlx5_create_srq_mbox_in *in, int inlen,
			 int is_xrc);
int mlx5_core_destroy_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq);
int mlx5_core_query_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
			struct mlx5_query_srq_mbox_out *out);
int mlx5_core_arm_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
		      u16 lwm, int is_srq);
void mlx5_init_mkey_table(struct mlx5_core_dev *dev);
void mlx5_cleanup_mkey_table(struct mlx5_core_dev *dev);
int mlx5_core_create_mkey(struct mlx5_core_dev *dev,
			  struct mlx5_core_mkey *mkey,
			  struct mlx5_create_mkey_mbox_in *in, int inlen,
			  mlx5_cmd_cbk_t callback, void *context,
			  struct mlx5_create_mkey_mbox_out *out);
int mlx5_core_destroy_mkey(struct mlx5_core_dev *dev,
			   struct mlx5_core_mkey *mkey);
int mlx5_core_query_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mkey *mkey,
			 struct mlx5_query_mkey_mbox_out *out, int outlen);
int mlx5_core_dump_fill_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mkey *_mkey,
			     u32 *mkey);
int mlx5_core_alloc_pd(struct mlx5_core_dev *dev, u32 *pdn);
int mlx5_core_dealloc_pd(struct mlx5_core_dev *dev, u32 pdn);
int mlx5_core_mad_ifc(struct mlx5_core_dev *dev, const void *inb, void *outb,
		      u16 opmod, u8 port);
void mlx5_pagealloc_init(struct mlx5_core_dev *dev);
void mlx5_pagealloc_cleanup(struct mlx5_core_dev *dev);
int mlx5_pagealloc_start(struct mlx5_core_dev *dev);
void mlx5_pagealloc_stop(struct mlx5_core_dev *dev);
int mlx5_sriov_init(struct mlx5_core_dev *dev);
int mlx5_sriov_cleanup(struct mlx5_core_dev *dev);
void mlx5_core_req_pages_handler(struct mlx5_core_dev *dev, u16 func_id,
				 s32 npages);
int mlx5_satisfy_startup_pages(struct mlx5_core_dev *dev, int boot);
int mlx5_reclaim_startup_pages(struct mlx5_core_dev *dev);
void mlx5_register_debugfs(void);
void mlx5_unregister_debugfs(void);
int mlx5_eq_init(struct mlx5_core_dev *dev);
void mlx5_eq_cleanup(struct mlx5_core_dev *dev);
void mlx5_fill_page_array(struct mlx5_buf *buf, __be64 *pas);
void mlx5_cq_completion(struct mlx5_core_dev *dev, u32 cqn);
void mlx5_rsc_event(struct mlx5_core_dev *dev, u32 rsn, int event_type);
#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
void mlx5_eq_pagefault(struct mlx5_core_dev *dev, struct mlx5_eqe *eqe);
#endif
void mlx5_srq_event(struct mlx5_core_dev *dev, u32 srqn, int event_type);
struct mlx5_core_srq *mlx5_core_get_srq(struct mlx5_core_dev *dev, u32 srqn);
void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, u64 vec);
void mlx5_cq_event(struct mlx5_core_dev *dev, u32 cqn, int event_type);
int mlx5_create_map_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq, u8 vecidx,
		       int nent, u64 mask, const char *name, struct mlx5_uar *uar);
int mlx5_destroy_unmap_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq);
int mlx5_start_eqs(struct mlx5_core_dev *dev);
int mlx5_stop_eqs(struct mlx5_core_dev *dev);
int mlx5_vector2eqn(struct mlx5_core_dev *dev, int vector, int *eqn,
		    unsigned int *irqn);
int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);

int mlx5_qp_debugfs_init(struct mlx5_core_dev *dev);
void mlx5_qp_debugfs_cleanup(struct mlx5_core_dev *dev);
int mlx5_core_access_reg(struct mlx5_core_dev *dev, void *data_in,
			 int size_in, void *data_out, int size_out,
			 u16 reg_num, int arg, int write);

int mlx5_debug_eq_add(struct mlx5_core_dev *dev, struct mlx5_eq *eq);
void mlx5_debug_eq_remove(struct mlx5_core_dev *dev, struct mlx5_eq *eq);
int mlx5_core_eq_query(struct mlx5_core_dev *dev, struct mlx5_eq *eq,
		       struct mlx5_query_eq_mbox_out *out, int outlen);
int mlx5_eq_debugfs_init(struct mlx5_core_dev *dev);
void mlx5_eq_debugfs_cleanup(struct mlx5_core_dev *dev);
int mlx5_cq_debugfs_init(struct mlx5_core_dev *dev);
void mlx5_cq_debugfs_cleanup(struct mlx5_core_dev *dev);
int mlx5_db_alloc(struct mlx5_core_dev *dev, struct mlx5_db *db);
int mlx5_db_alloc_node(struct mlx5_core_dev *dev, struct mlx5_db *db,
		       int node);
void mlx5_db_free(struct mlx5_core_dev *dev, struct mlx5_db *db);

const char *mlx5_command_str(int command);
int mlx5_cmdif_debugfs_init(struct mlx5_core_dev *dev);
void mlx5_cmdif_debugfs_cleanup(struct mlx5_core_dev *dev);
int mlx5_core_create_psv(struct mlx5_core_dev *dev, u32 pdn,
			 int npsvs, u32 *sig_index);
int mlx5_core_destroy_psv(struct mlx5_core_dev *dev, int psv_num);
void mlx5_core_put_rsc(struct mlx5_core_rsc_common *common);
int mlx5_query_odp_caps(struct mlx5_core_dev *dev,
			struct mlx5_odp_caps *odp_caps);
int mlx5_core_query_ib_ppcnt(struct mlx5_core_dev *dev,
			     u8 port_num, void *out, size_t sz);

static inline int fw_initializing(struct mlx5_core_dev *dev)
{
	return ioread32be(&dev->iseg->initializing) >> 31;
}

static inline u32 mlx5_mkey_to_idx(u32 mkey)
{
	return mkey >> 8;
}

static inline u32 mlx5_idx_to_mkey(u32 mkey_idx)
{
	return mkey_idx << 8;
}

static inline u8 mlx5_mkey_variant(u32 mkey)
{
	return mkey & 0xff;
}

enum {
	MLX5_PROF_MASK_QP_SIZE		= (u64)1 << 0,
	MLX5_PROF_MASK_MR_CACHE		= (u64)1 << 1,
};

enum {
	MAX_MR_CACHE_ENTRIES    = 16,
};

enum {
	MLX5_INTERFACE_PROTOCOL_IB  = 0,
	MLX5_INTERFACE_PROTOCOL_ETH = 1,
};

struct mlx5_interface {
	void *			(*add)(struct mlx5_core_dev *dev);
	void			(*remove)(struct mlx5_core_dev *dev, void *context);
	void			(*event)(struct mlx5_core_dev *dev, void *context,
					 enum mlx5_dev_event event, unsigned long param);
	void *                  (*get_dev)(void *context);
	int			protocol;
	struct list_head	list;
};

void *mlx5_get_protocol_dev(struct mlx5_core_dev *mdev, int protocol);
int mlx5_register_interface(struct mlx5_interface *intf);
void mlx5_unregister_interface(struct mlx5_interface *intf);
int mlx5_core_query_vendor_id(struct mlx5_core_dev *mdev, u32 *vendor_id);

struct mlx5_profile {
	u64	mask;
	u8	log_max_qp;
	struct {
		int	size;
		int	limit;
	} mr_cache[MAX_MR_CACHE_ENTRIES];
};

enum {
	MLX5_PCI_DEV_IS_VF		= 1 << 0,
};

static inline int mlx5_core_is_pf(struct mlx5_core_dev *dev)
{
	return !(dev->priv.pci_dev_data & MLX5_PCI_DEV_IS_VF);
}

static inline int mlx5_get_gid_table_len(u16 param)
{
	if (param > 4) {
		pr_warn("gid table length is zero\n");
		return 0;
	}

	return 8 * (1 << param);
}

enum {
	MLX5_TRIGGERED_CMD_COMP = (u64)1 << 32,
};

#endif /* MLX5_DRIVER_H */