xref: /linux-6.15/include/linux/mlx5/driver.h (revision 2bda7141) 
1 /*
2  * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
3  *
4  * This software is available to you under a choice of one of two
5  * licenses.  You may choose to be licensed under the terms of the GNU
6  * General Public License (GPL) Version 2, available from the file
7  * COPYING in the main directory of this source tree, or the
8  * OpenIB.org BSD license below:
9  *
10  *     Redistribution and use in source and binary forms, with or
11  *     without modification, are permitted provided that the following
12  *     conditions are met:
13  *
14  *      - Redistributions of source code must retain the above
15  *        copyright notice, this list of conditions and the following
16  *        disclaimer.
17  *
18  *      - Redistributions in binary form must reproduce the above
19  *        copyright notice, this list of conditions and the following
20  *        disclaimer in the documentation and/or other materials
21  *        provided with the distribution.
22  *
23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30  * SOFTWARE.
31  */
32 
33 #ifndef MLX5_DRIVER_H
34 #define MLX5_DRIVER_H
35 
36 #include <linux/kernel.h>
37 #include <linux/completion.h>
38 #include <linux/pci.h>
39 #include <linux/spinlock_types.h>
40 #include <linux/semaphore.h>
41 #include <linux/slab.h>
42 #include <linux/vmalloc.h>
43 #include <linux/radix-tree.h>
44 #include <linux/workqueue.h>
45 #include <linux/mempool.h>
46 #include <linux/interrupt.h>
47 #include <linux/idr.h>
48 
49 #include <linux/mlx5/device.h>
50 #include <linux/mlx5/doorbell.h>
51 #include <linux/mlx5/srq.h>
52 #include <linux/timecounter.h>
53 #include <linux/ptp_clock_kernel.h>
54 
55 enum {
56 	MLX5_BOARD_ID_LEN = 64,
57 	MLX5_MAX_NAME_LEN = 16,
58 };
59 
60 enum {
61 	/* one minute for the sake of bringup. Generally, commands must always
62 	 * complete and we may need to increase this timeout value
63 	 */
64 	MLX5_CMD_TIMEOUT_MSEC	= 60 * 1000,
65 	MLX5_CMD_WQ_MAX_NAME	= 32,
66 };
67 
68 enum {
69 	CMD_OWNER_SW		= 0x0,
70 	CMD_OWNER_HW		= 0x1,
71 	CMD_STATUS_SUCCESS	= 0,
72 };
73 
74 enum mlx5_sqp_t {
75 	MLX5_SQP_SMI		= 0,
76 	MLX5_SQP_GSI		= 1,
77 	MLX5_SQP_IEEE_1588	= 2,
78 	MLX5_SQP_SNIFFER	= 3,
79 	MLX5_SQP_SYNC_UMR	= 4,
80 };
81 
82 enum {
83 	MLX5_MAX_PORTS	= 2,
84 };
85 
86 enum {
87 	MLX5_EQ_VEC_PAGES	 = 0,
88 	MLX5_EQ_VEC_CMD		 = 1,
89 	MLX5_EQ_VEC_ASYNC	 = 2,
90 	MLX5_EQ_VEC_PFAULT	 = 3,
91 	MLX5_EQ_VEC_COMP_BASE,
92 };
93 
94 enum {
95 	MLX5_MAX_IRQ_NAME	= 32
96 };
97 
98 enum {
99 	MLX5_ATOMIC_MODE_IB_COMP	= 1 << 16,
100 	MLX5_ATOMIC_MODE_CX		= 2 << 16,
101 	MLX5_ATOMIC_MODE_8B		= 3 << 16,
102 	MLX5_ATOMIC_MODE_16B		= 4 << 16,
103 	MLX5_ATOMIC_MODE_32B		= 5 << 16,
104 	MLX5_ATOMIC_MODE_64B		= 6 << 16,
105 	MLX5_ATOMIC_MODE_128B		= 7 << 16,
106 	MLX5_ATOMIC_MODE_256B		= 8 << 16,
107 };
108 
109 enum {
110 	MLX5_REG_QPTS            = 0x4002,
111 	MLX5_REG_QETCR		 = 0x4005,
112 	MLX5_REG_QTCT		 = 0x400a,
113 	MLX5_REG_QPDPM           = 0x4013,
114 	MLX5_REG_QCAM            = 0x4019,
115 	MLX5_REG_DCBX_PARAM      = 0x4020,
116 	MLX5_REG_DCBX_APP        = 0x4021,
117 	MLX5_REG_FPGA_CAP	 = 0x4022,
118 	MLX5_REG_FPGA_CTRL	 = 0x4023,
119 	MLX5_REG_FPGA_ACCESS_REG = 0x4024,
120 	MLX5_REG_PCAP		 = 0x5001,
121 	MLX5_REG_PMTU		 = 0x5003,
122 	MLX5_REG_PTYS		 = 0x5004,
123 	MLX5_REG_PAOS		 = 0x5006,
124 	MLX5_REG_PFCC            = 0x5007,
125 	MLX5_REG_PPCNT		 = 0x5008,
126 	MLX5_REG_PMAOS		 = 0x5012,
127 	MLX5_REG_PUDE		 = 0x5009,
128 	MLX5_REG_PMPE		 = 0x5010,
129 	MLX5_REG_PELC		 = 0x500e,
130 	MLX5_REG_PVLC		 = 0x500f,
131 	MLX5_REG_PCMR		 = 0x5041,
132 	MLX5_REG_PMLP		 = 0x5002,
133 	MLX5_REG_PCAM		 = 0x507f,
134 	MLX5_REG_NODE_DESC	 = 0x6001,
135 	MLX5_REG_HOST_ENDIANNESS = 0x7004,
136 	MLX5_REG_MCIA		 = 0x9014,
137 	MLX5_REG_MLCR		 = 0x902b,
138 	MLX5_REG_MPCNT		 = 0x9051,
139 	MLX5_REG_MTPPS		 = 0x9053,
140 	MLX5_REG_MTPPSE		 = 0x9054,
141 	MLX5_REG_MCQI		 = 0x9061,
142 	MLX5_REG_MCC		 = 0x9062,
143 	MLX5_REG_MCDA		 = 0x9063,
144 	MLX5_REG_MCAM		 = 0x907f,
145 };
146 
147 enum mlx5_qpts_trust_state {
148 	MLX5_QPTS_TRUST_PCP  = 1,
149 	MLX5_QPTS_TRUST_DSCP = 2,
150 };
151 
152 enum mlx5_dcbx_oper_mode {
153 	MLX5E_DCBX_PARAM_VER_OPER_HOST  = 0x0,
154 	MLX5E_DCBX_PARAM_VER_OPER_AUTO  = 0x3,
155 };
156 
157 enum {
158 	MLX5_ATOMIC_OPS_CMP_SWAP	= 1 << 0,
159 	MLX5_ATOMIC_OPS_FETCH_ADD	= 1 << 1,
160 };
161 
162 enum mlx5_page_fault_resume_flags {
163 	MLX5_PAGE_FAULT_RESUME_REQUESTOR = 1 << 0,
164 	MLX5_PAGE_FAULT_RESUME_WRITE	 = 1 << 1,
165 	MLX5_PAGE_FAULT_RESUME_RDMA	 = 1 << 2,
166 	MLX5_PAGE_FAULT_RESUME_ERROR	 = 1 << 7,
167 };
168 
169 enum dbg_rsc_type {
170 	MLX5_DBG_RSC_QP,
171 	MLX5_DBG_RSC_EQ,
172 	MLX5_DBG_RSC_CQ,
173 };
174 
175 enum port_state_policy {
176 	MLX5_POLICY_DOWN	= 0,
177 	MLX5_POLICY_UP		= 1,
178 	MLX5_POLICY_FOLLOW	= 2,
179 	MLX5_POLICY_INVALID	= 0xffffffff
180 };
181 
182 struct mlx5_field_desc {
183 	struct dentry	       *dent;
184 	int			i;
185 };
186 
187 struct mlx5_rsc_debug {
188 	struct mlx5_core_dev   *dev;
189 	void		       *object;
190 	enum dbg_rsc_type	type;
191 	struct dentry	       *root;
192 	struct mlx5_field_desc	fields[0];
193 };
194 
195 enum mlx5_dev_event {
196 	MLX5_DEV_EVENT_SYS_ERROR,
197 	MLX5_DEV_EVENT_PORT_UP,
198 	MLX5_DEV_EVENT_PORT_DOWN,
199 	MLX5_DEV_EVENT_PORT_INITIALIZED,
200 	MLX5_DEV_EVENT_LID_CHANGE,
201 	MLX5_DEV_EVENT_PKEY_CHANGE,
202 	MLX5_DEV_EVENT_GUID_CHANGE,
203 	MLX5_DEV_EVENT_CLIENT_REREG,
204 	MLX5_DEV_EVENT_PPS,
205 	MLX5_DEV_EVENT_DELAY_DROP_TIMEOUT,
206 };
207 
208 enum mlx5_port_status {
209 	MLX5_PORT_UP        = 1,
210 	MLX5_PORT_DOWN      = 2,
211 };
212 
213 enum mlx5_eq_type {
214 	MLX5_EQ_TYPE_COMP,
215 	MLX5_EQ_TYPE_ASYNC,
216 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
217 	MLX5_EQ_TYPE_PF,
218 #endif
219 };
220 
221 struct mlx5_bfreg_info {
222 	u32		       *sys_pages;
223 	int			num_low_latency_bfregs;
224 	unsigned int	       *count;
225 
226 	/*
227 	 * protect bfreg allocation data structs
228 	 */
229 	struct mutex		lock;
230 	u32			ver;
231 	bool			lib_uar_4k;
232 	u32			num_sys_pages;
233 };
234 
235 struct mlx5_cmd_first {
236 	__be32		data[4];
237 };
238 
239 struct mlx5_cmd_msg {
240 	struct list_head		list;
241 	struct cmd_msg_cache	       *parent;
242 	u32				len;
243 	struct mlx5_cmd_first		first;
244 	struct mlx5_cmd_mailbox	       *next;
245 };
246 
247 struct mlx5_cmd_debug {
248 	struct dentry	       *dbg_root;
249 	struct dentry	       *dbg_in;
250 	struct dentry	       *dbg_out;
251 	struct dentry	       *dbg_outlen;
252 	struct dentry	       *dbg_status;
253 	struct dentry	       *dbg_run;
254 	void		       *in_msg;
255 	void		       *out_msg;
256 	u8			status;
257 	u16			inlen;
258 	u16			outlen;
259 };
260 
261 struct cmd_msg_cache {
262 	/* protect block chain allocations
263 	 */
264 	spinlock_t		lock;
265 	struct list_head	head;
266 	unsigned int		max_inbox_size;
267 	unsigned int		num_ent;
268 };
269 
270 enum {
271 	MLX5_NUM_COMMAND_CACHES = 5,
272 };
273 
274 struct mlx5_cmd_stats {
275 	u64		sum;
276 	u64		n;
277 	struct dentry  *root;
278 	struct dentry  *avg;
279 	struct dentry  *count;
280 	/* protect command average calculations */
281 	spinlock_t	lock;
282 };
283 
284 struct mlx5_cmd {
285 	void	       *cmd_alloc_buf;
286 	dma_addr_t	alloc_dma;
287 	int		alloc_size;
288 	void	       *cmd_buf;
289 	dma_addr_t	dma;
290 	u16		cmdif_rev;
291 	u8		log_sz;
292 	u8		log_stride;
293 	int		max_reg_cmds;
294 	int		events;
295 	u32 __iomem    *vector;
296 
297 	/* protect command queue allocations
298 	 */
299 	spinlock_t	alloc_lock;
300 
301 	/* protect token allocations
302 	 */
303 	spinlock_t	token_lock;
304 	u8		token;
305 	unsigned long	bitmask;
306 	char		wq_name[MLX5_CMD_WQ_MAX_NAME];
307 	struct workqueue_struct *wq;
308 	struct semaphore sem;
309 	struct semaphore pages_sem;
310 	int	mode;
311 	struct mlx5_cmd_work_ent *ent_arr[MLX5_MAX_COMMANDS];
312 	struct dma_pool *pool;
313 	struct mlx5_cmd_debug dbg;
314 	struct cmd_msg_cache cache[MLX5_NUM_COMMAND_CACHES];
315 	int checksum_disabled;
316 	struct mlx5_cmd_stats stats[MLX5_CMD_OP_MAX];
317 };
318 
319 struct mlx5_port_caps {
320 	int	gid_table_len;
321 	int	pkey_table_len;
322 	u8	ext_port_cap;
323 	bool	has_smi;
324 };
325 
326 struct mlx5_cmd_mailbox {
327 	void	       *buf;
328 	dma_addr_t	dma;
329 	struct mlx5_cmd_mailbox *next;
330 };
331 
332 struct mlx5_buf_list {
333 	void		       *buf;
334 	dma_addr_t		map;
335 };
336 
337 struct mlx5_buf {
338 	struct mlx5_buf_list	direct;
339 	int			npages;
340 	int			size;
341 	u8			page_shift;
342 };
343 
344 struct mlx5_frag_buf {
345 	struct mlx5_buf_list	*frags;
346 	int			npages;
347 	int			size;
348 	u8			page_shift;
349 };
350 
351 struct mlx5_eq_tasklet {
352 	struct list_head list;
353 	struct list_head process_list;
354 	struct tasklet_struct task;
355 	/* lock on completion tasklet list */
356 	spinlock_t lock;
357 };
358 
359 struct mlx5_eq_pagefault {
360 	struct work_struct       work;
361 	/* Pagefaults lock */
362 	spinlock_t		 lock;
363 	struct workqueue_struct *wq;
364 	mempool_t		*pool;
365 };
366 
367 struct mlx5_eq {
368 	struct mlx5_core_dev   *dev;
369 	__be32 __iomem	       *doorbell;
370 	u32			cons_index;
371 	struct mlx5_buf		buf;
372 	int			size;
373 	unsigned int		irqn;
374 	u8			eqn;
375 	int			nent;
376 	u64			mask;
377 	struct list_head	list;
378 	int			index;
379 	struct mlx5_rsc_debug	*dbg;
380 	enum mlx5_eq_type	type;
381 	union {
382 		struct mlx5_eq_tasklet   tasklet_ctx;
383 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
384 		struct mlx5_eq_pagefault pf_ctx;
385 #endif
386 	};
387 };
388 
389 struct mlx5_core_psv {
390 	u32	psv_idx;
391 	struct psv_layout {
392 		u32	pd;
393 		u16	syndrome;
394 		u16	reserved;
395 		u16	bg;
396 		u16	app_tag;
397 		u32	ref_tag;
398 	} psv;
399 };
400 
401 struct mlx5_core_sig_ctx {
402 	struct mlx5_core_psv	psv_memory;
403 	struct mlx5_core_psv	psv_wire;
404 	struct ib_sig_err       err_item;
405 	bool			sig_status_checked;
406 	bool			sig_err_exists;
407 	u32			sigerr_count;
408 };
409 
410 enum {
411 	MLX5_MKEY_MR = 1,
412 	MLX5_MKEY_MW,
413 };
414 
415 struct mlx5_core_mkey {
416 	u64			iova;
417 	u64			size;
418 	u32			key;
419 	u32			pd;
420 	u32			type;
421 };
422 
423 #define MLX5_24BIT_MASK		((1 << 24) - 1)
424 
425 enum mlx5_res_type {
426 	MLX5_RES_QP	= MLX5_EVENT_QUEUE_TYPE_QP,
427 	MLX5_RES_RQ	= MLX5_EVENT_QUEUE_TYPE_RQ,
428 	MLX5_RES_SQ	= MLX5_EVENT_QUEUE_TYPE_SQ,
429 	MLX5_RES_SRQ	= 3,
430 	MLX5_RES_XSRQ	= 4,
431 	MLX5_RES_XRQ	= 5,
432 };
433 
434 struct mlx5_core_rsc_common {
435 	enum mlx5_res_type	res;
436 	atomic_t		refcount;
437 	struct completion	free;
438 };
439 
440 struct mlx5_core_srq {
441 	struct mlx5_core_rsc_common	common; /* must be first */
442 	u32		srqn;
443 	int		max;
444 	int		max_gs;
445 	int		max_avail_gather;
446 	int		wqe_shift;
447 	void (*event)	(struct mlx5_core_srq *, enum mlx5_event);
448 
449 	atomic_t		refcount;
450 	struct completion	free;
451 };
452 
453 struct mlx5_eq_table {
454 	void __iomem	       *update_ci;
455 	void __iomem	       *update_arm_ci;
456 	struct list_head	comp_eqs_list;
457 	struct mlx5_eq		pages_eq;
458 	struct mlx5_eq		async_eq;
459 	struct mlx5_eq		cmd_eq;
460 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
461 	struct mlx5_eq		pfault_eq;
462 #endif
463 	int			num_comp_vectors;
464 	/* protect EQs list
465 	 */
466 	spinlock_t		lock;
467 };
468 
469 struct mlx5_uars_page {
470 	void __iomem	       *map;
471 	bool			wc;
472 	u32			index;
473 	struct list_head	list;
474 	unsigned int		bfregs;
475 	unsigned long	       *reg_bitmap; /* for non fast path bf regs */
476 	unsigned long	       *fp_bitmap;
477 	unsigned int		reg_avail;
478 	unsigned int		fp_avail;
479 	struct kref		ref_count;
480 	struct mlx5_core_dev   *mdev;
481 };
482 
483 struct mlx5_bfreg_head {
484 	/* protect blue flame registers allocations */
485 	struct mutex		lock;
486 	struct list_head	list;
487 };
488 
489 struct mlx5_bfreg_data {
490 	struct mlx5_bfreg_head	reg_head;
491 	struct mlx5_bfreg_head	wc_head;
492 };
493 
494 struct mlx5_sq_bfreg {
495 	void __iomem	       *map;
496 	struct mlx5_uars_page  *up;
497 	bool			wc;
498 	u32			index;
499 	unsigned int		offset;
500 };
501 
502 struct mlx5_core_health {
503 	struct health_buffer __iomem   *health;
504 	__be32 __iomem		       *health_counter;
505 	struct timer_list		timer;
506 	u32				prev;
507 	int				miss_counter;
508 	bool				sick;
509 	/* wq spinlock to synchronize draining */
510 	spinlock_t			wq_lock;
511 	struct workqueue_struct	       *wq;
512 	unsigned long			flags;
513 	struct work_struct		work;
514 	struct delayed_work		recover_work;
515 };
516 
517 struct mlx5_cq_table {
518 	/* protect radix tree
519 	 */
520 	spinlock_t		lock;
521 	struct radix_tree_root	tree;
522 };
523 
524 struct mlx5_qp_table {
525 	/* protect radix tree
526 	 */
527 	spinlock_t		lock;
528 	struct radix_tree_root	tree;
529 };
530 
531 struct mlx5_srq_table {
532 	/* protect radix tree
533 	 */
534 	spinlock_t		lock;
535 	struct radix_tree_root	tree;
536 };
537 
538 struct mlx5_mkey_table {
539 	/* protect radix tree
540 	 */
541 	rwlock_t		lock;
542 	struct radix_tree_root	tree;
543 };
544 
545 struct mlx5_vf_context {
546 	int	enabled;
547 	u64	port_guid;
548 	u64	node_guid;
549 	enum port_state_policy	policy;
550 };
551 
552 struct mlx5_core_sriov {
553 	struct mlx5_vf_context	*vfs_ctx;
554 	int			num_vfs;
555 	int			enabled_vfs;
556 };
557 
558 struct mlx5_irq_info {
559 	cpumask_var_t mask;
560 	char name[MLX5_MAX_IRQ_NAME];
561 };
562 
563 struct mlx5_fc_stats {
564 	struct rb_root counters;
565 	struct list_head addlist;
566 	/* protect addlist add/splice operations */
567 	spinlock_t addlist_lock;
568 
569 	struct workqueue_struct *wq;
570 	struct delayed_work work;
571 	unsigned long next_query;
572 	unsigned long sampling_interval; /* jiffies */
573 };
574 
575 struct mlx5_mpfs;
576 struct mlx5_eswitch;
577 struct mlx5_lag;
578 struct mlx5_pagefault;
579 
580 struct mlx5_rl_entry {
581 	u32                     rate;
582 	u16                     index;
583 	u16                     refcount;
584 };
585 
586 struct mlx5_rl_table {
587 	/* protect rate limit table */
588 	struct mutex            rl_lock;
589 	u16                     max_size;
590 	u32                     max_rate;
591 	u32                     min_rate;
592 	struct mlx5_rl_entry   *rl_entry;
593 };
594 
595 enum port_module_event_status_type {
596 	MLX5_MODULE_STATUS_PLUGGED   = 0x1,
597 	MLX5_MODULE_STATUS_UNPLUGGED = 0x2,
598 	MLX5_MODULE_STATUS_ERROR     = 0x3,
599 	MLX5_MODULE_STATUS_NUM       = 0x3,
600 };
601 
602 enum  port_module_event_error_type {
603 	MLX5_MODULE_EVENT_ERROR_POWER_BUDGET_EXCEEDED,
604 	MLX5_MODULE_EVENT_ERROR_LONG_RANGE_FOR_NON_MLNX_CABLE_MODULE,
605 	MLX5_MODULE_EVENT_ERROR_BUS_STUCK,
606 	MLX5_MODULE_EVENT_ERROR_NO_EEPROM_RETRY_TIMEOUT,
607 	MLX5_MODULE_EVENT_ERROR_ENFORCE_PART_NUMBER_LIST,
608 	MLX5_MODULE_EVENT_ERROR_UNKNOWN_IDENTIFIER,
609 	MLX5_MODULE_EVENT_ERROR_HIGH_TEMPERATURE,
610 	MLX5_MODULE_EVENT_ERROR_BAD_CABLE,
611 	MLX5_MODULE_EVENT_ERROR_UNKNOWN,
612 	MLX5_MODULE_EVENT_ERROR_NUM,
613 };
614 
615 struct mlx5_port_module_event_stats {
616 	u64 status_counters[MLX5_MODULE_STATUS_NUM];
617 	u64 error_counters[MLX5_MODULE_EVENT_ERROR_NUM];
618 };
619 
620 struct mlx5_priv {
621 	char			name[MLX5_MAX_NAME_LEN];
622 	struct mlx5_eq_table	eq_table;
623 	struct mlx5_irq_info	*irq_info;
624 
625 	/* pages stuff */
626 	struct workqueue_struct *pg_wq;
627 	struct rb_root		page_root;
628 	int			fw_pages;
629 	atomic_t		reg_pages;
630 	struct list_head	free_list;
631 	int			vfs_pages;
632 
633 	struct mlx5_core_health health;
634 
635 	struct mlx5_srq_table	srq_table;
636 
637 	/* start: qp staff */
638 	struct mlx5_qp_table	qp_table;
639 	struct dentry	       *qp_debugfs;
640 	struct dentry	       *eq_debugfs;
641 	struct dentry	       *cq_debugfs;
642 	struct dentry	       *cmdif_debugfs;
643 	/* end: qp staff */
644 
645 	/* start: cq staff */
646 	struct mlx5_cq_table	cq_table;
647 	/* end: cq staff */
648 
649 	/* start: mkey staff */
650 	struct mlx5_mkey_table	mkey_table;
651 	/* end: mkey staff */
652 
653 	/* start: alloc staff */
654 	/* protect buffer alocation according to numa node */
655 	struct mutex            alloc_mutex;
656 	int                     numa_node;
657 
658 	struct mutex            pgdir_mutex;
659 	struct list_head        pgdir_list;
660 	/* end: alloc staff */
661 	struct dentry	       *dbg_root;
662 
663 	/* protect mkey key part */
664 	spinlock_t		mkey_lock;
665 	u8			mkey_key;
666 
667 	struct list_head        dev_list;
668 	struct list_head        ctx_list;
669 	spinlock_t              ctx_lock;
670 
671 	struct list_head	waiting_events_list;
672 	bool			is_accum_events;
673 
674 	struct mlx5_flow_steering *steering;
675 	struct mlx5_mpfs        *mpfs;
676 	struct mlx5_eswitch     *eswitch;
677 	struct mlx5_core_sriov	sriov;
678 	struct mlx5_lag		*lag;
679 	unsigned long		pci_dev_data;
680 	struct mlx5_fc_stats		fc_stats;
681 	struct mlx5_rl_table            rl_table;
682 
683 	struct mlx5_port_module_event_stats  pme_stats;
684 
685 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
686 	void		      (*pfault)(struct mlx5_core_dev *dev,
687 					void *context,
688 					struct mlx5_pagefault *pfault);
689 	void		       *pfault_ctx;
690 	struct srcu_struct      pfault_srcu;
691 #endif
692 	struct mlx5_bfreg_data		bfregs;
693 	struct mlx5_uars_page	       *uar;
694 };
695 
696 enum mlx5_device_state {
697 	MLX5_DEVICE_STATE_UP,
698 	MLX5_DEVICE_STATE_INTERNAL_ERROR,
699 };
700 
701 enum mlx5_interface_state {
702 	MLX5_INTERFACE_STATE_UP = BIT(0),
703 };
704 
705 enum mlx5_pci_status {
706 	MLX5_PCI_STATUS_DISABLED,
707 	MLX5_PCI_STATUS_ENABLED,
708 };
709 
710 enum mlx5_pagefault_type_flags {
711 	MLX5_PFAULT_REQUESTOR = 1 << 0,
712 	MLX5_PFAULT_WRITE     = 1 << 1,
713 	MLX5_PFAULT_RDMA      = 1 << 2,
714 };
715 
716 /* Contains the details of a pagefault. */
717 struct mlx5_pagefault {
718 	u32			bytes_committed;
719 	u32			token;
720 	u8			event_subtype;
721 	u8			type;
722 	union {
723 		/* Initiator or send message responder pagefault details. */
724 		struct {
725 			/* Received packet size, only valid for responders. */
726 			u32	packet_size;
727 			/*
728 			 * Number of resource holding WQE, depends on type.
729 			 */
730 			u32	wq_num;
731 			/*
732 			 * WQE index. Refers to either the send queue or
733 			 * receive queue, according to event_subtype.
734 			 */
735 			u16	wqe_index;
736 		} wqe;
737 		/* RDMA responder pagefault details */
738 		struct {
739 			u32	r_key;
740 			/*
741 			 * Received packet size, minimal size page fault
742 			 * resolution required for forward progress.
743 			 */
744 			u32	packet_size;
745 			u32	rdma_op_len;
746 			u64	rdma_va;
747 		} rdma;
748 	};
749 
750 	struct mlx5_eq	       *eq;
751 	struct work_struct	work;
752 };
753 
754 struct mlx5_td {
755 	struct list_head tirs_list;
756 	u32              tdn;
757 };
758 
759 struct mlx5e_resources {
760 	u32                        pdn;
761 	struct mlx5_td             td;
762 	struct mlx5_core_mkey      mkey;
763 	struct mlx5_sq_bfreg       bfreg;
764 };
765 
766 #define MLX5_MAX_RESERVED_GIDS 8
767 
768 struct mlx5_rsvd_gids {
769 	unsigned int start;
770 	unsigned int count;
771 	struct ida ida;
772 };
773 
774 #define MAX_PIN_NUM	8
775 struct mlx5_pps {
776 	u8                         pin_caps[MAX_PIN_NUM];
777 	struct work_struct         out_work;
778 	u64                        start[MAX_PIN_NUM];
779 	u8                         enabled;
780 };
781 
782 struct mlx5_clock {
783 	rwlock_t                   lock;
784 	struct cyclecounter        cycles;
785 	struct timecounter         tc;
786 	struct hwtstamp_config     hwtstamp_config;
787 	u32                        nominal_c_mult;
788 	unsigned long              overflow_period;
789 	struct delayed_work        overflow_work;
790 	struct ptp_clock          *ptp;
791 	struct ptp_clock_info      ptp_info;
792 	struct mlx5_pps            pps_info;
793 };
794 
795 struct mlx5_core_dev {
796 	struct pci_dev	       *pdev;
797 	/* sync pci state */
798 	struct mutex		pci_status_mutex;
799 	enum mlx5_pci_status	pci_status;
800 	u8			rev_id;
801 	char			board_id[MLX5_BOARD_ID_LEN];
802 	struct mlx5_cmd		cmd;
803 	struct mlx5_port_caps	port_caps[MLX5_MAX_PORTS];
804 	struct {
805 		u32 hca_cur[MLX5_CAP_NUM][MLX5_UN_SZ_DW(hca_cap_union)];
806 		u32 hca_max[MLX5_CAP_NUM][MLX5_UN_SZ_DW(hca_cap_union)];
807 		u32 pcam[MLX5_ST_SZ_DW(pcam_reg)];
808 		u32 mcam[MLX5_ST_SZ_DW(mcam_reg)];
809 		u32 fpga[MLX5_ST_SZ_DW(fpga_cap)];
810 		u32 qcam[MLX5_ST_SZ_DW(qcam_reg)];
811 	} caps;
812 	phys_addr_t		iseg_base;
813 	struct mlx5_init_seg __iomem *iseg;
814 	enum mlx5_device_state	state;
815 	/* sync interface state */
816 	struct mutex		intf_state_mutex;
817 	unsigned long		intf_state;
818 	void			(*event) (struct mlx5_core_dev *dev,
819 					  enum mlx5_dev_event event,
820 					  unsigned long param);
821 	struct mlx5_priv	priv;
822 	struct mlx5_profile	*profile;
823 	atomic_t		num_qps;
824 	u32			issi;
825 	struct mlx5e_resources  mlx5e_res;
826 	struct {
827 		struct mlx5_rsvd_gids	reserved_gids;
828 		atomic_t                roce_en;
829 	} roce;
830 #ifdef CONFIG_MLX5_FPGA
831 	struct mlx5_fpga_device *fpga;
832 #endif
833 #ifdef CONFIG_RFS_ACCEL
834 	struct cpu_rmap         *rmap;
835 #endif
836 	struct mlx5_clock        clock;
837 };
838 
839 struct mlx5_db {
840 	__be32			*db;
841 	union {
842 		struct mlx5_db_pgdir		*pgdir;
843 		struct mlx5_ib_user_db_page	*user_page;
844 	}			u;
845 	dma_addr_t		dma;
846 	int			index;
847 };
848 
849 enum {
850 	MLX5_COMP_EQ_SIZE = 1024,
851 };
852 
853 enum {
854 	MLX5_PTYS_IB = 1 << 0,
855 	MLX5_PTYS_EN = 1 << 2,
856 };
857 
858 typedef void (*mlx5_cmd_cbk_t)(int status, void *context);
859 
860 enum {
861 	MLX5_CMD_ENT_STATE_PENDING_COMP,
862 };
863 
864 struct mlx5_cmd_work_ent {
865 	unsigned long		state;
866 	struct mlx5_cmd_msg    *in;
867 	struct mlx5_cmd_msg    *out;
868 	void		       *uout;
869 	int			uout_size;
870 	mlx5_cmd_cbk_t		callback;
871 	struct delayed_work	cb_timeout_work;
872 	void		       *context;
873 	int			idx;
874 	struct completion	done;
875 	struct mlx5_cmd        *cmd;
876 	struct work_struct	work;
877 	struct mlx5_cmd_layout *lay;
878 	int			ret;
879 	int			page_queue;
880 	u8			status;
881 	u8			token;
882 	u64			ts1;
883 	u64			ts2;
884 	u16			op;
885 	bool			polling;
886 };
887 
888 struct mlx5_pas {
889 	u64	pa;
890 	u8	log_sz;
891 };
892 
893 enum phy_port_state {
894 	MLX5_AAA_111
895 };
896 
897 struct mlx5_hca_vport_context {
898 	u32			field_select;
899 	bool			sm_virt_aware;
900 	bool			has_smi;
901 	bool			has_raw;
902 	enum port_state_policy	policy;
903 	enum phy_port_state	phys_state;
904 	enum ib_port_state	vport_state;
905 	u8			port_physical_state;
906 	u64			sys_image_guid;
907 	u64			port_guid;
908 	u64			node_guid;
909 	u32			cap_mask1;
910 	u32			cap_mask1_perm;
911 	u32			cap_mask2;
912 	u32			cap_mask2_perm;
913 	u16			lid;
914 	u8			init_type_reply; /* bitmask: see ib spec 14.2.5.6 InitTypeReply */
915 	u8			lmc;
916 	u8			subnet_timeout;
917 	u16			sm_lid;
918 	u8			sm_sl;
919 	u16			qkey_violation_counter;
920 	u16			pkey_violation_counter;
921 	bool			grh_required;
922 };
923 
924 static inline void *mlx5_buf_offset(struct mlx5_buf *buf, int offset)
925 {
926 		return buf->direct.buf + offset;
927 }
928 
929 #define STRUCT_FIELD(header, field) \
930 	.struct_offset_bytes = offsetof(struct ib_unpacked_ ## header, field),      \
931 	.struct_size_bytes   = sizeof((struct ib_unpacked_ ## header *)0)->field
932 
933 static inline struct mlx5_core_dev *pci2mlx5_core_dev(struct pci_dev *pdev)
934 {
935 	return pci_get_drvdata(pdev);
936 }
937 
938 extern struct dentry *mlx5_debugfs_root;
939 
940 static inline u16 fw_rev_maj(struct mlx5_core_dev *dev)
941 {
942 	return ioread32be(&dev->iseg->fw_rev) & 0xffff;
943 }
944 
945 static inline u16 fw_rev_min(struct mlx5_core_dev *dev)
946 {
947 	return ioread32be(&dev->iseg->fw_rev) >> 16;
948 }
949 
950 static inline u16 fw_rev_sub(struct mlx5_core_dev *dev)
951 {
952 	return ioread32be(&dev->iseg->cmdif_rev_fw_sub) & 0xffff;
953 }
954 
955 static inline u16 cmdif_rev(struct mlx5_core_dev *dev)
956 {
957 	return ioread32be(&dev->iseg->cmdif_rev_fw_sub) >> 16;
958 }
959 
960 static inline u32 mlx5_base_mkey(const u32 key)
961 {
962 	return key & 0xffffff00u;
963 }
964 
965 int mlx5_cmd_init(struct mlx5_core_dev *dev);
966 void mlx5_cmd_cleanup(struct mlx5_core_dev *dev);
967 void mlx5_cmd_use_events(struct mlx5_core_dev *dev);
968 void mlx5_cmd_use_polling(struct mlx5_core_dev *dev);
969 
970 int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out,
971 		  int out_size);
972 int mlx5_cmd_exec_cb(struct mlx5_core_dev *dev, void *in, int in_size,
973 		     void *out, int out_size, mlx5_cmd_cbk_t callback,
974 		     void *context);
975 int mlx5_cmd_exec_polling(struct mlx5_core_dev *dev, void *in, int in_size,
976 			  void *out, int out_size);
977 void mlx5_cmd_mbox_status(void *out, u8 *status, u32 *syndrome);
978 
979 int mlx5_core_get_caps(struct mlx5_core_dev *dev, enum mlx5_cap_type cap_type);
980 int mlx5_cmd_alloc_uar(struct mlx5_core_dev *dev, u32 *uarn);
981 int mlx5_cmd_free_uar(struct mlx5_core_dev *dev, u32 uarn);
982 void mlx5_health_cleanup(struct mlx5_core_dev *dev);
983 int mlx5_health_init(struct mlx5_core_dev *dev);
984 void mlx5_start_health_poll(struct mlx5_core_dev *dev);
985 void mlx5_stop_health_poll(struct mlx5_core_dev *dev);
986 void mlx5_drain_health_wq(struct mlx5_core_dev *dev);
987 void mlx5_trigger_health_work(struct mlx5_core_dev *dev);
988 void mlx5_drain_health_recovery(struct mlx5_core_dev *dev);
989 int mlx5_buf_alloc_node(struct mlx5_core_dev *dev, int size,
990 			struct mlx5_buf *buf, int node);
991 int mlx5_buf_alloc(struct mlx5_core_dev *dev, int size, struct mlx5_buf *buf);
992 void mlx5_buf_free(struct mlx5_core_dev *dev, struct mlx5_buf *buf);
993 int mlx5_frag_buf_alloc_node(struct mlx5_core_dev *dev, int size,
994 			     struct mlx5_frag_buf *buf, int node);
995 void mlx5_frag_buf_free(struct mlx5_core_dev *dev, struct mlx5_frag_buf *buf);
996 struct mlx5_cmd_mailbox *mlx5_alloc_cmd_mailbox_chain(struct mlx5_core_dev *dev,
997 						      gfp_t flags, int npages);
998 void mlx5_free_cmd_mailbox_chain(struct mlx5_core_dev *dev,
999 				 struct mlx5_cmd_mailbox *head);
1000 int mlx5_core_create_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
1001 			 struct mlx5_srq_attr *in);
1002 int mlx5_core_destroy_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq);
1003 int mlx5_core_query_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
1004 			struct mlx5_srq_attr *out);
1005 int mlx5_core_arm_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
1006 		      u16 lwm, int is_srq);
1007 void mlx5_init_mkey_table(struct mlx5_core_dev *dev);
1008 void mlx5_cleanup_mkey_table(struct mlx5_core_dev *dev);
1009 int mlx5_core_create_mkey_cb(struct mlx5_core_dev *dev,
1010 			     struct mlx5_core_mkey *mkey,
1011 			     u32 *in, int inlen,
1012 			     u32 *out, int outlen,
1013 			     mlx5_cmd_cbk_t callback, void *context);
1014 int mlx5_core_create_mkey(struct mlx5_core_dev *dev,
1015 			  struct mlx5_core_mkey *mkey,
1016 			  u32 *in, int inlen);
1017 int mlx5_core_destroy_mkey(struct mlx5_core_dev *dev,
1018 			   struct mlx5_core_mkey *mkey);
1019 int mlx5_core_query_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mkey *mkey,
1020 			 u32 *out, int outlen);
1021 int mlx5_core_dump_fill_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mkey *_mkey,
1022 			     u32 *mkey);
1023 int mlx5_core_alloc_pd(struct mlx5_core_dev *dev, u32 *pdn);
1024 int mlx5_core_dealloc_pd(struct mlx5_core_dev *dev, u32 pdn);
1025 int mlx5_core_mad_ifc(struct mlx5_core_dev *dev, const void *inb, void *outb,
1026 		      u16 opmod, u8 port);
1027 void mlx5_pagealloc_init(struct mlx5_core_dev *dev);
1028 void mlx5_pagealloc_cleanup(struct mlx5_core_dev *dev);
1029 int mlx5_pagealloc_start(struct mlx5_core_dev *dev);
1030 void mlx5_pagealloc_stop(struct mlx5_core_dev *dev);
1031 void mlx5_core_req_pages_handler(struct mlx5_core_dev *dev, u16 func_id,
1032 				 s32 npages);
1033 int mlx5_satisfy_startup_pages(struct mlx5_core_dev *dev, int boot);
1034 int mlx5_reclaim_startup_pages(struct mlx5_core_dev *dev);
1035 void mlx5_register_debugfs(void);
1036 void mlx5_unregister_debugfs(void);
1037 int mlx5_eq_init(struct mlx5_core_dev *dev);
1038 void mlx5_eq_cleanup(struct mlx5_core_dev *dev);
1039 void mlx5_fill_page_array(struct mlx5_buf *buf, __be64 *pas);
1040 void mlx5_fill_page_frag_array(struct mlx5_frag_buf *frag_buf, __be64 *pas);
1041 void mlx5_cq_completion(struct mlx5_core_dev *dev, u32 cqn);
1042 void mlx5_rsc_event(struct mlx5_core_dev *dev, u32 rsn, int event_type);
1043 void mlx5_srq_event(struct mlx5_core_dev *dev, u32 srqn, int event_type);
1044 struct mlx5_core_srq *mlx5_core_get_srq(struct mlx5_core_dev *dev, u32 srqn);
1045 void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, u64 vec, bool forced);
1046 void mlx5_cq_event(struct mlx5_core_dev *dev, u32 cqn, int event_type);
1047 int mlx5_create_map_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq, u8 vecidx,
1048 		       int nent, u64 mask, const char *name,
1049 		       enum mlx5_eq_type type);
1050 int mlx5_destroy_unmap_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq);
1051 int mlx5_start_eqs(struct mlx5_core_dev *dev);
1052 void mlx5_stop_eqs(struct mlx5_core_dev *dev);
1053 int mlx5_vector2eqn(struct mlx5_core_dev *dev, int vector, int *eqn,
1054 		    unsigned int *irqn);
1055 int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
1056 int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
1057 
1058 int mlx5_qp_debugfs_init(struct mlx5_core_dev *dev);
1059 void mlx5_qp_debugfs_cleanup(struct mlx5_core_dev *dev);
1060 int mlx5_core_access_reg(struct mlx5_core_dev *dev, void *data_in,
1061 			 int size_in, void *data_out, int size_out,
1062 			 u16 reg_num, int arg, int write);
1063 
1064 int mlx5_debug_eq_add(struct mlx5_core_dev *dev, struct mlx5_eq *eq);
1065 void mlx5_debug_eq_remove(struct mlx5_core_dev *dev, struct mlx5_eq *eq);
1066 int mlx5_core_eq_query(struct mlx5_core_dev *dev, struct mlx5_eq *eq,
1067 		       u32 *out, int outlen);
1068 int mlx5_eq_debugfs_init(struct mlx5_core_dev *dev);
1069 void mlx5_eq_debugfs_cleanup(struct mlx5_core_dev *dev);
1070 int mlx5_cq_debugfs_init(struct mlx5_core_dev *dev);
1071 void mlx5_cq_debugfs_cleanup(struct mlx5_core_dev *dev);
1072 int mlx5_db_alloc(struct mlx5_core_dev *dev, struct mlx5_db *db);
1073 int mlx5_db_alloc_node(struct mlx5_core_dev *dev, struct mlx5_db *db,
1074 		       int node);
1075 void mlx5_db_free(struct mlx5_core_dev *dev, struct mlx5_db *db);
1076 
1077 const char *mlx5_command_str(int command);
1078 int mlx5_cmdif_debugfs_init(struct mlx5_core_dev *dev);
1079 void mlx5_cmdif_debugfs_cleanup(struct mlx5_core_dev *dev);
1080 int mlx5_core_create_psv(struct mlx5_core_dev *dev, u32 pdn,
1081 			 int npsvs, u32 *sig_index);
1082 int mlx5_core_destroy_psv(struct mlx5_core_dev *dev, int psv_num);
1083 void mlx5_core_put_rsc(struct mlx5_core_rsc_common *common);
1084 int mlx5_query_odp_caps(struct mlx5_core_dev *dev,
1085 			struct mlx5_odp_caps *odp_caps);
1086 int mlx5_core_query_ib_ppcnt(struct mlx5_core_dev *dev,
1087 			     u8 port_num, void *out, size_t sz);
1088 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
1089 int mlx5_core_page_fault_resume(struct mlx5_core_dev *dev, u32 token,
1090 				u32 wq_num, u8 type, int error);
1091 #endif
1092 
1093 int mlx5_init_rl_table(struct mlx5_core_dev *dev);
1094 void mlx5_cleanup_rl_table(struct mlx5_core_dev *dev);
1095 int mlx5_rl_add_rate(struct mlx5_core_dev *dev, u32 rate, u16 *index);
1096 void mlx5_rl_remove_rate(struct mlx5_core_dev *dev, u32 rate);
1097 bool mlx5_rl_is_in_range(struct mlx5_core_dev *dev, u32 rate);
1098 int mlx5_alloc_bfreg(struct mlx5_core_dev *mdev, struct mlx5_sq_bfreg *bfreg,
1099 		     bool map_wc, bool fast_path);
1100 void mlx5_free_bfreg(struct mlx5_core_dev *mdev, struct mlx5_sq_bfreg *bfreg);
1101 
1102 unsigned int mlx5_core_reserved_gids_count(struct mlx5_core_dev *dev);
1103 int mlx5_core_roce_gid_set(struct mlx5_core_dev *dev, unsigned int index,
1104 			   u8 roce_version, u8 roce_l3_type, const u8 *gid,
1105 			   const u8 *mac, bool vlan, u16 vlan_id);
1106 
1107 static inline int fw_initializing(struct mlx5_core_dev *dev)
1108 {
1109 	return ioread32be(&dev->iseg->initializing) >> 31;
1110 }
1111 
1112 static inline u32 mlx5_mkey_to_idx(u32 mkey)
1113 {
1114 	return mkey >> 8;
1115 }
1116 
1117 static inline u32 mlx5_idx_to_mkey(u32 mkey_idx)
1118 {
1119 	return mkey_idx << 8;
1120 }
1121 
1122 static inline u8 mlx5_mkey_variant(u32 mkey)
1123 {
1124 	return mkey & 0xff;
1125 }
1126 
1127 enum {
1128 	MLX5_PROF_MASK_QP_SIZE		= (u64)1 << 0,
1129 	MLX5_PROF_MASK_MR_CACHE		= (u64)1 << 1,
1130 };
1131 
1132 enum {
1133 	MR_CACHE_LAST_STD_ENTRY = 20,
1134 	MLX5_IMR_MTT_CACHE_ENTRY,
1135 	MLX5_IMR_KSM_CACHE_ENTRY,
1136 	MAX_MR_CACHE_ENTRIES
1137 };
1138 
1139 enum {
1140 	MLX5_INTERFACE_PROTOCOL_IB  = 0,
1141 	MLX5_INTERFACE_PROTOCOL_ETH = 1,
1142 };
1143 
1144 struct mlx5_interface {
1145 	void *			(*add)(struct mlx5_core_dev *dev);
1146 	void			(*remove)(struct mlx5_core_dev *dev, void *context);
1147 	int			(*attach)(struct mlx5_core_dev *dev, void *context);
1148 	void			(*detach)(struct mlx5_core_dev *dev, void *context);
1149 	void			(*event)(struct mlx5_core_dev *dev, void *context,
1150 					 enum mlx5_dev_event event, unsigned long param);
1151 	void			(*pfault)(struct mlx5_core_dev *dev,
1152 					  void *context,
1153 					  struct mlx5_pagefault *pfault);
1154 	void *                  (*get_dev)(void *context);
1155 	int			protocol;
1156 	struct list_head	list;
1157 };
1158 
1159 void *mlx5_get_protocol_dev(struct mlx5_core_dev *mdev, int protocol);
1160 int mlx5_register_interface(struct mlx5_interface *intf);
1161 void mlx5_unregister_interface(struct mlx5_interface *intf);
1162 int mlx5_core_query_vendor_id(struct mlx5_core_dev *mdev, u32 *vendor_id);
1163 
1164 int mlx5_cmd_create_vport_lag(struct mlx5_core_dev *dev);
1165 int mlx5_cmd_destroy_vport_lag(struct mlx5_core_dev *dev);
1166 bool mlx5_lag_is_active(struct mlx5_core_dev *dev);
1167 struct net_device *mlx5_lag_get_roce_netdev(struct mlx5_core_dev *dev);
1168 int mlx5_lag_query_cong_counters(struct mlx5_core_dev *dev,
1169 				 u64 *values,
1170 				 int num_counters,
1171 				 size_t *offsets);
1172 struct mlx5_uars_page *mlx5_get_uars_page(struct mlx5_core_dev *mdev);
1173 void mlx5_put_uars_page(struct mlx5_core_dev *mdev, struct mlx5_uars_page *up);
1174 
1175 #ifndef CONFIG_MLX5_CORE_IPOIB
1176 static inline
1177 struct net_device *mlx5_rdma_netdev_alloc(struct mlx5_core_dev *mdev,
1178 					  struct ib_device *ibdev,
1179 					  const char *name,
1180 					  void (*setup)(struct net_device *))
1181 {
1182 	return ERR_PTR(-EOPNOTSUPP);
1183 }
1184 
1185 static inline void mlx5_rdma_netdev_free(struct net_device *netdev) {}
1186 #else
1187 struct net_device *mlx5_rdma_netdev_alloc(struct mlx5_core_dev *mdev,
1188 					  struct ib_device *ibdev,
1189 					  const char *name,
1190 					  void (*setup)(struct net_device *));
1191 void mlx5_rdma_netdev_free(struct net_device *netdev);
1192 #endif /* CONFIG_MLX5_CORE_IPOIB */
1193 
1194 struct mlx5_profile {
1195 	u64	mask;
1196 	u8	log_max_qp;
1197 	struct {
1198 		int	size;
1199 		int	limit;
1200 	} mr_cache[MAX_MR_CACHE_ENTRIES];
1201 };
1202 
1203 enum {
1204 	MLX5_PCI_DEV_IS_VF		= 1 << 0,
1205 };
1206 
1207 static inline int mlx5_core_is_pf(struct mlx5_core_dev *dev)
1208 {
1209 	return !(dev->priv.pci_dev_data & MLX5_PCI_DEV_IS_VF);
1210 }
1211 
1212 static inline int mlx5_get_gid_table_len(u16 param)
1213 {
1214 	if (param > 4) {
1215 		pr_warn("gid table length is zero\n");
1216 		return 0;
1217 	}
1218 
1219 	return 8 * (1 << param);
1220 }
1221 
1222 static inline bool mlx5_rl_is_supported(struct mlx5_core_dev *dev)
1223 {
1224 	return !!(dev->priv.rl_table.max_size);
1225 }
1226 
1227 enum {
1228 	MLX5_TRIGGERED_CMD_COMP = (u64)1 << 32,
1229 };
1230 
1231 static inline const struct cpumask *
1232 mlx5_get_vector_affinity(struct mlx5_core_dev *dev, int vector)
1233 {
1234 	return pci_irq_get_affinity(dev->pdev, MLX5_EQ_VEC_COMP_BASE + vector);
1235 }
1236 
1237 #endif /* MLX5_DRIVER_H */
1238