xref: /linux-6.15/include/linux/mlx5/driver.h (revision 3df0e680) 
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/irq.h>
40 #include <linux/spinlock_types.h>
41 #include <linux/semaphore.h>
42 #include <linux/slab.h>
43 #include <linux/vmalloc.h>
44 #include <linux/radix-tree.h>
45 #include <linux/workqueue.h>
46 #include <linux/mempool.h>
47 #include <linux/interrupt.h>
48 #include <linux/idr.h>
49 
50 #include <linux/mlx5/device.h>
51 #include <linux/mlx5/doorbell.h>
52 #include <linux/mlx5/srq.h>
53 #include <linux/timecounter.h>
54 #include <linux/ptp_clock_kernel.h>
55 
56 enum {
57 	MLX5_BOARD_ID_LEN = 64,
58 	MLX5_MAX_NAME_LEN = 16,
59 };
60 
61 enum {
62 	/* one minute for the sake of bringup. Generally, commands must always
63 	 * complete and we may need to increase this timeout value
64 	 */
65 	MLX5_CMD_TIMEOUT_MSEC	= 60 * 1000,
66 	MLX5_CMD_WQ_MAX_NAME	= 32,
67 };
68 
69 enum {
70 	CMD_OWNER_SW		= 0x0,
71 	CMD_OWNER_HW		= 0x1,
72 	CMD_STATUS_SUCCESS	= 0,
73 };
74 
75 enum mlx5_sqp_t {
76 	MLX5_SQP_SMI		= 0,
77 	MLX5_SQP_GSI		= 1,
78 	MLX5_SQP_IEEE_1588	= 2,
79 	MLX5_SQP_SNIFFER	= 3,
80 	MLX5_SQP_SYNC_UMR	= 4,
81 };
82 
83 enum {
84 	MLX5_MAX_PORTS	= 2,
85 };
86 
87 enum {
88 	MLX5_EQ_VEC_PAGES	 = 0,
89 	MLX5_EQ_VEC_CMD		 = 1,
90 	MLX5_EQ_VEC_ASYNC	 = 2,
91 	MLX5_EQ_VEC_PFAULT	 = 3,
92 	MLX5_EQ_VEC_COMP_BASE,
93 };
94 
95 enum {
96 	MLX5_MAX_IRQ_NAME	= 32
97 };
98 
99 enum {
100 	MLX5_ATOMIC_MODE_IB_COMP	= 1 << 16,
101 	MLX5_ATOMIC_MODE_CX		= 2 << 16,
102 	MLX5_ATOMIC_MODE_8B		= 3 << 16,
103 	MLX5_ATOMIC_MODE_16B		= 4 << 16,
104 	MLX5_ATOMIC_MODE_32B		= 5 << 16,
105 	MLX5_ATOMIC_MODE_64B		= 6 << 16,
106 	MLX5_ATOMIC_MODE_128B		= 7 << 16,
107 	MLX5_ATOMIC_MODE_256B		= 8 << 16,
108 };
109 
110 enum {
111 	MLX5_REG_QPTS            = 0x4002,
112 	MLX5_REG_QETCR		 = 0x4005,
113 	MLX5_REG_QTCT		 = 0x400a,
114 	MLX5_REG_QPDPM           = 0x4013,
115 	MLX5_REG_QCAM            = 0x4019,
116 	MLX5_REG_DCBX_PARAM      = 0x4020,
117 	MLX5_REG_DCBX_APP        = 0x4021,
118 	MLX5_REG_FPGA_CAP	 = 0x4022,
119 	MLX5_REG_FPGA_CTRL	 = 0x4023,
120 	MLX5_REG_FPGA_ACCESS_REG = 0x4024,
121 	MLX5_REG_PCAP		 = 0x5001,
122 	MLX5_REG_PMTU		 = 0x5003,
123 	MLX5_REG_PTYS		 = 0x5004,
124 	MLX5_REG_PAOS		 = 0x5006,
125 	MLX5_REG_PFCC            = 0x5007,
126 	MLX5_REG_PPCNT		 = 0x5008,
127 	MLX5_REG_PPTB            = 0x500b,
128 	MLX5_REG_PBMC            = 0x500c,
129 	MLX5_REG_PMAOS		 = 0x5012,
130 	MLX5_REG_PUDE		 = 0x5009,
131 	MLX5_REG_PMPE		 = 0x5010,
132 	MLX5_REG_PELC		 = 0x500e,
133 	MLX5_REG_PVLC		 = 0x500f,
134 	MLX5_REG_PCMR		 = 0x5041,
135 	MLX5_REG_PMLP		 = 0x5002,
136 	MLX5_REG_PCAM		 = 0x507f,
137 	MLX5_REG_NODE_DESC	 = 0x6001,
138 	MLX5_REG_HOST_ENDIANNESS = 0x7004,
139 	MLX5_REG_MCIA		 = 0x9014,
140 	MLX5_REG_MLCR		 = 0x902b,
141 	MLX5_REG_MTRC_CAP	 = 0x9040,
142 	MLX5_REG_MTRC_CONF	 = 0x9041,
143 	MLX5_REG_MTRC_STDB	 = 0x9042,
144 	MLX5_REG_MTRC_CTRL	 = 0x9043,
145 	MLX5_REG_MPCNT		 = 0x9051,
146 	MLX5_REG_MTPPS		 = 0x9053,
147 	MLX5_REG_MTPPSE		 = 0x9054,
148 	MLX5_REG_MPEGC		 = 0x9056,
149 	MLX5_REG_MCQI		 = 0x9061,
150 	MLX5_REG_MCC		 = 0x9062,
151 	MLX5_REG_MCDA		 = 0x9063,
152 	MLX5_REG_MCAM		 = 0x907f,
153 };
154 
155 enum mlx5_qpts_trust_state {
156 	MLX5_QPTS_TRUST_PCP  = 1,
157 	MLX5_QPTS_TRUST_DSCP = 2,
158 };
159 
160 enum mlx5_dcbx_oper_mode {
161 	MLX5E_DCBX_PARAM_VER_OPER_HOST  = 0x0,
162 	MLX5E_DCBX_PARAM_VER_OPER_AUTO  = 0x3,
163 };
164 
165 enum mlx5_dct_atomic_mode {
166 	MLX5_ATOMIC_MODE_DCT_OFF        = 20,
167 	MLX5_ATOMIC_MODE_DCT_NONE       = 0 << MLX5_ATOMIC_MODE_DCT_OFF,
168 	MLX5_ATOMIC_MODE_DCT_IB_COMP    = 1 << MLX5_ATOMIC_MODE_DCT_OFF,
169 	MLX5_ATOMIC_MODE_DCT_CX         = 2 << MLX5_ATOMIC_MODE_DCT_OFF,
170 };
171 
172 enum {
173 	MLX5_ATOMIC_OPS_CMP_SWAP	= 1 << 0,
174 	MLX5_ATOMIC_OPS_FETCH_ADD	= 1 << 1,
175 };
176 
177 enum mlx5_page_fault_resume_flags {
178 	MLX5_PAGE_FAULT_RESUME_REQUESTOR = 1 << 0,
179 	MLX5_PAGE_FAULT_RESUME_WRITE	 = 1 << 1,
180 	MLX5_PAGE_FAULT_RESUME_RDMA	 = 1 << 2,
181 	MLX5_PAGE_FAULT_RESUME_ERROR	 = 1 << 7,
182 };
183 
184 enum dbg_rsc_type {
185 	MLX5_DBG_RSC_QP,
186 	MLX5_DBG_RSC_EQ,
187 	MLX5_DBG_RSC_CQ,
188 };
189 
190 enum port_state_policy {
191 	MLX5_POLICY_DOWN	= 0,
192 	MLX5_POLICY_UP		= 1,
193 	MLX5_POLICY_FOLLOW	= 2,
194 	MLX5_POLICY_INVALID	= 0xffffffff
195 };
196 
197 struct mlx5_field_desc {
198 	struct dentry	       *dent;
199 	int			i;
200 };
201 
202 struct mlx5_rsc_debug {
203 	struct mlx5_core_dev   *dev;
204 	void		       *object;
205 	enum dbg_rsc_type	type;
206 	struct dentry	       *root;
207 	struct mlx5_field_desc	fields[0];
208 };
209 
210 enum mlx5_dev_event {
211 	MLX5_DEV_EVENT_SYS_ERROR,
212 	MLX5_DEV_EVENT_PORT_UP,
213 	MLX5_DEV_EVENT_PORT_DOWN,
214 	MLX5_DEV_EVENT_PORT_INITIALIZED,
215 	MLX5_DEV_EVENT_LID_CHANGE,
216 	MLX5_DEV_EVENT_PKEY_CHANGE,
217 	MLX5_DEV_EVENT_GUID_CHANGE,
218 	MLX5_DEV_EVENT_CLIENT_REREG,
219 	MLX5_DEV_EVENT_PPS,
220 	MLX5_DEV_EVENT_DELAY_DROP_TIMEOUT,
221 };
222 
223 enum mlx5_port_status {
224 	MLX5_PORT_UP        = 1,
225 	MLX5_PORT_DOWN      = 2,
226 };
227 
228 enum mlx5_eq_type {
229 	MLX5_EQ_TYPE_COMP,
230 	MLX5_EQ_TYPE_ASYNC,
231 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
232 	MLX5_EQ_TYPE_PF,
233 #endif
234 };
235 
236 struct mlx5_bfreg_info {
237 	u32		       *sys_pages;
238 	int			num_low_latency_bfregs;
239 	unsigned int	       *count;
240 
241 	/*
242 	 * protect bfreg allocation data structs
243 	 */
244 	struct mutex		lock;
245 	u32			ver;
246 	bool			lib_uar_4k;
247 	u32			num_sys_pages;
248 	u32			num_static_sys_pages;
249 	u32			total_num_bfregs;
250 	u32			num_dyn_bfregs;
251 };
252 
253 struct mlx5_cmd_first {
254 	__be32		data[4];
255 };
256 
257 struct mlx5_cmd_msg {
258 	struct list_head		list;
259 	struct cmd_msg_cache	       *parent;
260 	u32				len;
261 	struct mlx5_cmd_first		first;
262 	struct mlx5_cmd_mailbox	       *next;
263 };
264 
265 struct mlx5_cmd_debug {
266 	struct dentry	       *dbg_root;
267 	struct dentry	       *dbg_in;
268 	struct dentry	       *dbg_out;
269 	struct dentry	       *dbg_outlen;
270 	struct dentry	       *dbg_status;
271 	struct dentry	       *dbg_run;
272 	void		       *in_msg;
273 	void		       *out_msg;
274 	u8			status;
275 	u16			inlen;
276 	u16			outlen;
277 };
278 
279 struct cmd_msg_cache {
280 	/* protect block chain allocations
281 	 */
282 	spinlock_t		lock;
283 	struct list_head	head;
284 	unsigned int		max_inbox_size;
285 	unsigned int		num_ent;
286 };
287 
288 enum {
289 	MLX5_NUM_COMMAND_CACHES = 5,
290 };
291 
292 struct mlx5_cmd_stats {
293 	u64		sum;
294 	u64		n;
295 	struct dentry  *root;
296 	struct dentry  *avg;
297 	struct dentry  *count;
298 	/* protect command average calculations */
299 	spinlock_t	lock;
300 };
301 
302 struct mlx5_cmd {
303 	void	       *cmd_alloc_buf;
304 	dma_addr_t	alloc_dma;
305 	int		alloc_size;
306 	void	       *cmd_buf;
307 	dma_addr_t	dma;
308 	u16		cmdif_rev;
309 	u8		log_sz;
310 	u8		log_stride;
311 	int		max_reg_cmds;
312 	int		events;
313 	u32 __iomem    *vector;
314 
315 	/* protect command queue allocations
316 	 */
317 	spinlock_t	alloc_lock;
318 
319 	/* protect token allocations
320 	 */
321 	spinlock_t	token_lock;
322 	u8		token;
323 	unsigned long	bitmask;
324 	char		wq_name[MLX5_CMD_WQ_MAX_NAME];
325 	struct workqueue_struct *wq;
326 	struct semaphore sem;
327 	struct semaphore pages_sem;
328 	int	mode;
329 	struct mlx5_cmd_work_ent *ent_arr[MLX5_MAX_COMMANDS];
330 	struct dma_pool *pool;
331 	struct mlx5_cmd_debug dbg;
332 	struct cmd_msg_cache cache[MLX5_NUM_COMMAND_CACHES];
333 	int checksum_disabled;
334 	struct mlx5_cmd_stats stats[MLX5_CMD_OP_MAX];
335 };
336 
337 struct mlx5_port_caps {
338 	int	gid_table_len;
339 	int	pkey_table_len;
340 	u8	ext_port_cap;
341 	bool	has_smi;
342 };
343 
344 struct mlx5_cmd_mailbox {
345 	void	       *buf;
346 	dma_addr_t	dma;
347 	struct mlx5_cmd_mailbox *next;
348 };
349 
350 struct mlx5_buf_list {
351 	void		       *buf;
352 	dma_addr_t		map;
353 };
354 
355 struct mlx5_frag_buf {
356 	struct mlx5_buf_list	*frags;
357 	int			npages;
358 	int			size;
359 	u8			page_shift;
360 };
361 
362 struct mlx5_frag_buf_ctrl {
363 	struct mlx5_frag_buf	frag_buf;
364 	u32			sz_m1;
365 	u16			frag_sz_m1;
366 	u16			strides_offset;
367 	u8			log_sz;
368 	u8			log_stride;
369 	u8			log_frag_strides;
370 };
371 
372 struct mlx5_eq_tasklet {
373 	struct list_head list;
374 	struct list_head process_list;
375 	struct tasklet_struct task;
376 	/* lock on completion tasklet list */
377 	spinlock_t lock;
378 };
379 
380 struct mlx5_eq_pagefault {
381 	struct work_struct       work;
382 	/* Pagefaults lock */
383 	spinlock_t		 lock;
384 	struct workqueue_struct *wq;
385 	mempool_t		*pool;
386 };
387 
388 struct mlx5_cq_table {
389 	/* protect radix tree */
390 	spinlock_t		lock;
391 	struct radix_tree_root	tree;
392 };
393 
394 struct mlx5_eq {
395 	struct mlx5_core_dev   *dev;
396 	struct mlx5_cq_table	cq_table;
397 	__be32 __iomem	       *doorbell;
398 	u32			cons_index;
399 	struct mlx5_frag_buf	buf;
400 	int			size;
401 	unsigned int		irqn;
402 	u8			eqn;
403 	int			nent;
404 	u64			mask;
405 	struct list_head	list;
406 	int			index;
407 	struct mlx5_rsc_debug	*dbg;
408 	enum mlx5_eq_type	type;
409 	union {
410 		struct mlx5_eq_tasklet   tasklet_ctx;
411 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
412 		struct mlx5_eq_pagefault pf_ctx;
413 #endif
414 	};
415 };
416 
417 struct mlx5_core_psv {
418 	u32	psv_idx;
419 	struct psv_layout {
420 		u32	pd;
421 		u16	syndrome;
422 		u16	reserved;
423 		u16	bg;
424 		u16	app_tag;
425 		u32	ref_tag;
426 	} psv;
427 };
428 
429 struct mlx5_core_sig_ctx {
430 	struct mlx5_core_psv	psv_memory;
431 	struct mlx5_core_psv	psv_wire;
432 	struct ib_sig_err       err_item;
433 	bool			sig_status_checked;
434 	bool			sig_err_exists;
435 	u32			sigerr_count;
436 };
437 
438 enum {
439 	MLX5_MKEY_MR = 1,
440 	MLX5_MKEY_MW,
441 };
442 
443 struct mlx5_core_mkey {
444 	u64			iova;
445 	u64			size;
446 	u32			key;
447 	u32			pd;
448 	u32			type;
449 };
450 
451 #define MLX5_24BIT_MASK		((1 << 24) - 1)
452 
453 enum mlx5_res_type {
454 	MLX5_RES_QP	= MLX5_EVENT_QUEUE_TYPE_QP,
455 	MLX5_RES_RQ	= MLX5_EVENT_QUEUE_TYPE_RQ,
456 	MLX5_RES_SQ	= MLX5_EVENT_QUEUE_TYPE_SQ,
457 	MLX5_RES_SRQ	= 3,
458 	MLX5_RES_XSRQ	= 4,
459 	MLX5_RES_XRQ	= 5,
460 	MLX5_RES_DCT	= MLX5_EVENT_QUEUE_TYPE_DCT,
461 };
462 
463 struct mlx5_core_rsc_common {
464 	enum mlx5_res_type	res;
465 	atomic_t		refcount;
466 	struct completion	free;
467 };
468 
469 struct mlx5_core_srq {
470 	struct mlx5_core_rsc_common	common; /* must be first */
471 	u32		srqn;
472 	int		max;
473 	size_t		max_gs;
474 	size_t		max_avail_gather;
475 	int		wqe_shift;
476 	void (*event)	(struct mlx5_core_srq *, enum mlx5_event);
477 
478 	atomic_t		refcount;
479 	struct completion	free;
480 };
481 
482 struct mlx5_eq_table {
483 	void __iomem	       *update_ci;
484 	void __iomem	       *update_arm_ci;
485 	struct list_head	comp_eqs_list;
486 	struct mlx5_eq		pages_eq;
487 	struct mlx5_eq		async_eq;
488 	struct mlx5_eq		cmd_eq;
489 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
490 	struct mlx5_eq		pfault_eq;
491 #endif
492 	int			num_comp_vectors;
493 	/* protect EQs list
494 	 */
495 	spinlock_t		lock;
496 };
497 
498 struct mlx5_uars_page {
499 	void __iomem	       *map;
500 	bool			wc;
501 	u32			index;
502 	struct list_head	list;
503 	unsigned int		bfregs;
504 	unsigned long	       *reg_bitmap; /* for non fast path bf regs */
505 	unsigned long	       *fp_bitmap;
506 	unsigned int		reg_avail;
507 	unsigned int		fp_avail;
508 	struct kref		ref_count;
509 	struct mlx5_core_dev   *mdev;
510 };
511 
512 struct mlx5_bfreg_head {
513 	/* protect blue flame registers allocations */
514 	struct mutex		lock;
515 	struct list_head	list;
516 };
517 
518 struct mlx5_bfreg_data {
519 	struct mlx5_bfreg_head	reg_head;
520 	struct mlx5_bfreg_head	wc_head;
521 };
522 
523 struct mlx5_sq_bfreg {
524 	void __iomem	       *map;
525 	struct mlx5_uars_page  *up;
526 	bool			wc;
527 	u32			index;
528 	unsigned int		offset;
529 };
530 
531 struct mlx5_core_health {
532 	struct health_buffer __iomem   *health;
533 	__be32 __iomem		       *health_counter;
534 	struct timer_list		timer;
535 	u32				prev;
536 	int				miss_counter;
537 	bool				sick;
538 	/* wq spinlock to synchronize draining */
539 	spinlock_t			wq_lock;
540 	struct workqueue_struct	       *wq;
541 	unsigned long			flags;
542 	struct work_struct		work;
543 	struct delayed_work		recover_work;
544 };
545 
546 struct mlx5_qp_table {
547 	/* protect radix tree
548 	 */
549 	spinlock_t		lock;
550 	struct radix_tree_root	tree;
551 };
552 
553 struct mlx5_srq_table {
554 	/* protect radix tree
555 	 */
556 	spinlock_t		lock;
557 	struct radix_tree_root	tree;
558 };
559 
560 struct mlx5_mkey_table {
561 	/* protect radix tree
562 	 */
563 	rwlock_t		lock;
564 	struct radix_tree_root	tree;
565 };
566 
567 struct mlx5_vf_context {
568 	int	enabled;
569 	u64	port_guid;
570 	u64	node_guid;
571 	enum port_state_policy	policy;
572 };
573 
574 struct mlx5_core_sriov {
575 	struct mlx5_vf_context	*vfs_ctx;
576 	int			num_vfs;
577 	int			enabled_vfs;
578 };
579 
580 struct mlx5_irq_info {
581 	cpumask_var_t mask;
582 	char name[MLX5_MAX_IRQ_NAME];
583 };
584 
585 struct mlx5_fc_stats {
586 	spinlock_t counters_idr_lock; /* protects counters_idr */
587 	struct idr counters_idr;
588 	struct list_head counters;
589 	struct llist_head addlist;
590 	struct llist_head dellist;
591 
592 	struct workqueue_struct *wq;
593 	struct delayed_work work;
594 	unsigned long next_query;
595 	unsigned long sampling_interval; /* jiffies */
596 };
597 
598 struct mlx5_mpfs;
599 struct mlx5_eswitch;
600 struct mlx5_lag;
601 struct mlx5_pagefault;
602 
603 struct mlx5_rate_limit {
604 	u32			rate;
605 	u32			max_burst_sz;
606 	u16			typical_pkt_sz;
607 };
608 
609 struct mlx5_rl_entry {
610 	struct mlx5_rate_limit	rl;
611 	u16                     index;
612 	u16                     refcount;
613 };
614 
615 struct mlx5_rl_table {
616 	/* protect rate limit table */
617 	struct mutex            rl_lock;
618 	u16                     max_size;
619 	u32                     max_rate;
620 	u32                     min_rate;
621 	struct mlx5_rl_entry   *rl_entry;
622 };
623 
624 enum port_module_event_status_type {
625 	MLX5_MODULE_STATUS_PLUGGED   = 0x1,
626 	MLX5_MODULE_STATUS_UNPLUGGED = 0x2,
627 	MLX5_MODULE_STATUS_ERROR     = 0x3,
628 	MLX5_MODULE_STATUS_NUM       = 0x3,
629 };
630 
631 enum  port_module_event_error_type {
632 	MLX5_MODULE_EVENT_ERROR_POWER_BUDGET_EXCEEDED,
633 	MLX5_MODULE_EVENT_ERROR_LONG_RANGE_FOR_NON_MLNX_CABLE_MODULE,
634 	MLX5_MODULE_EVENT_ERROR_BUS_STUCK,
635 	MLX5_MODULE_EVENT_ERROR_NO_EEPROM_RETRY_TIMEOUT,
636 	MLX5_MODULE_EVENT_ERROR_ENFORCE_PART_NUMBER_LIST,
637 	MLX5_MODULE_EVENT_ERROR_UNKNOWN_IDENTIFIER,
638 	MLX5_MODULE_EVENT_ERROR_HIGH_TEMPERATURE,
639 	MLX5_MODULE_EVENT_ERROR_BAD_CABLE,
640 	MLX5_MODULE_EVENT_ERROR_UNKNOWN,
641 	MLX5_MODULE_EVENT_ERROR_NUM,
642 };
643 
644 struct mlx5_port_module_event_stats {
645 	u64 status_counters[MLX5_MODULE_STATUS_NUM];
646 	u64 error_counters[MLX5_MODULE_EVENT_ERROR_NUM];
647 };
648 
649 struct mlx5_priv {
650 	char			name[MLX5_MAX_NAME_LEN];
651 	struct mlx5_eq_table	eq_table;
652 	struct mlx5_irq_info	*irq_info;
653 
654 	/* pages stuff */
655 	struct workqueue_struct *pg_wq;
656 	struct rb_root		page_root;
657 	int			fw_pages;
658 	atomic_t		reg_pages;
659 	struct list_head	free_list;
660 	int			vfs_pages;
661 
662 	struct mlx5_core_health health;
663 
664 	struct mlx5_srq_table	srq_table;
665 
666 	/* start: qp staff */
667 	struct mlx5_qp_table	qp_table;
668 	struct dentry	       *qp_debugfs;
669 	struct dentry	       *eq_debugfs;
670 	struct dentry	       *cq_debugfs;
671 	struct dentry	       *cmdif_debugfs;
672 	/* end: qp staff */
673 
674 	/* start: mkey staff */
675 	struct mlx5_mkey_table	mkey_table;
676 	/* end: mkey staff */
677 
678 	/* start: alloc staff */
679 	/* protect buffer alocation according to numa node */
680 	struct mutex            alloc_mutex;
681 	int                     numa_node;
682 
683 	struct mutex            pgdir_mutex;
684 	struct list_head        pgdir_list;
685 	/* end: alloc staff */
686 	struct dentry	       *dbg_root;
687 
688 	/* protect mkey key part */
689 	spinlock_t		mkey_lock;
690 	u8			mkey_key;
691 
692 	struct list_head        dev_list;
693 	struct list_head        ctx_list;
694 	spinlock_t              ctx_lock;
695 
696 	struct list_head	waiting_events_list;
697 	bool			is_accum_events;
698 
699 	struct mlx5_flow_steering *steering;
700 	struct mlx5_mpfs        *mpfs;
701 	struct mlx5_eswitch     *eswitch;
702 	struct mlx5_core_sriov	sriov;
703 	struct mlx5_lag		*lag;
704 	unsigned long		pci_dev_data;
705 	struct mlx5_fc_stats		fc_stats;
706 	struct mlx5_rl_table            rl_table;
707 
708 	struct mlx5_port_module_event_stats  pme_stats;
709 
710 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
711 	void		      (*pfault)(struct mlx5_core_dev *dev,
712 					void *context,
713 					struct mlx5_pagefault *pfault);
714 	void		       *pfault_ctx;
715 	struct srcu_struct      pfault_srcu;
716 #endif
717 	struct mlx5_bfreg_data		bfregs;
718 	struct mlx5_uars_page	       *uar;
719 };
720 
721 enum mlx5_device_state {
722 	MLX5_DEVICE_STATE_UP,
723 	MLX5_DEVICE_STATE_INTERNAL_ERROR,
724 };
725 
726 enum mlx5_interface_state {
727 	MLX5_INTERFACE_STATE_UP = BIT(0),
728 };
729 
730 enum mlx5_pci_status {
731 	MLX5_PCI_STATUS_DISABLED,
732 	MLX5_PCI_STATUS_ENABLED,
733 };
734 
735 enum mlx5_pagefault_type_flags {
736 	MLX5_PFAULT_REQUESTOR = 1 << 0,
737 	MLX5_PFAULT_WRITE     = 1 << 1,
738 	MLX5_PFAULT_RDMA      = 1 << 2,
739 };
740 
741 /* Contains the details of a pagefault. */
742 struct mlx5_pagefault {
743 	u32			bytes_committed;
744 	u32			token;
745 	u8			event_subtype;
746 	u8			type;
747 	union {
748 		/* Initiator or send message responder pagefault details. */
749 		struct {
750 			/* Received packet size, only valid for responders. */
751 			u32	packet_size;
752 			/*
753 			 * Number of resource holding WQE, depends on type.
754 			 */
755 			u32	wq_num;
756 			/*
757 			 * WQE index. Refers to either the send queue or
758 			 * receive queue, according to event_subtype.
759 			 */
760 			u16	wqe_index;
761 		} wqe;
762 		/* RDMA responder pagefault details */
763 		struct {
764 			u32	r_key;
765 			/*
766 			 * Received packet size, minimal size page fault
767 			 * resolution required for forward progress.
768 			 */
769 			u32	packet_size;
770 			u32	rdma_op_len;
771 			u64	rdma_va;
772 		} rdma;
773 	};
774 
775 	struct mlx5_eq	       *eq;
776 	struct work_struct	work;
777 };
778 
779 struct mlx5_td {
780 	struct list_head tirs_list;
781 	u32              tdn;
782 };
783 
784 struct mlx5e_resources {
785 	u32                        pdn;
786 	struct mlx5_td             td;
787 	struct mlx5_core_mkey      mkey;
788 	struct mlx5_sq_bfreg       bfreg;
789 };
790 
791 #define MLX5_MAX_RESERVED_GIDS 8
792 
793 struct mlx5_rsvd_gids {
794 	unsigned int start;
795 	unsigned int count;
796 	struct ida ida;
797 };
798 
799 #define MAX_PIN_NUM	8
800 struct mlx5_pps {
801 	u8                         pin_caps[MAX_PIN_NUM];
802 	struct work_struct         out_work;
803 	u64                        start[MAX_PIN_NUM];
804 	u8                         enabled;
805 };
806 
807 struct mlx5_clock {
808 	seqlock_t                  lock;
809 	struct cyclecounter        cycles;
810 	struct timecounter         tc;
811 	struct hwtstamp_config     hwtstamp_config;
812 	u32                        nominal_c_mult;
813 	unsigned long              overflow_period;
814 	struct delayed_work        overflow_work;
815 	struct mlx5_core_dev      *mdev;
816 	struct ptp_clock          *ptp;
817 	struct ptp_clock_info      ptp_info;
818 	struct mlx5_pps            pps_info;
819 };
820 
821 struct mlx5_fw_tracer;
822 struct mlx5_vxlan;
823 
824 struct mlx5_core_dev {
825 	struct pci_dev	       *pdev;
826 	/* sync pci state */
827 	struct mutex		pci_status_mutex;
828 	enum mlx5_pci_status	pci_status;
829 	u8			rev_id;
830 	char			board_id[MLX5_BOARD_ID_LEN];
831 	struct mlx5_cmd		cmd;
832 	struct mlx5_port_caps	port_caps[MLX5_MAX_PORTS];
833 	struct {
834 		u32 hca_cur[MLX5_CAP_NUM][MLX5_UN_SZ_DW(hca_cap_union)];
835 		u32 hca_max[MLX5_CAP_NUM][MLX5_UN_SZ_DW(hca_cap_union)];
836 		u32 pcam[MLX5_ST_SZ_DW(pcam_reg)];
837 		u32 mcam[MLX5_ST_SZ_DW(mcam_reg)];
838 		u32 fpga[MLX5_ST_SZ_DW(fpga_cap)];
839 		u32 qcam[MLX5_ST_SZ_DW(qcam_reg)];
840 	} caps;
841 	u64			sys_image_guid;
842 	phys_addr_t		iseg_base;
843 	struct mlx5_init_seg __iomem *iseg;
844 	enum mlx5_device_state	state;
845 	/* sync interface state */
846 	struct mutex		intf_state_mutex;
847 	unsigned long		intf_state;
848 	void			(*event) (struct mlx5_core_dev *dev,
849 					  enum mlx5_dev_event event,
850 					  unsigned long param);
851 	struct mlx5_priv	priv;
852 	struct mlx5_profile	*profile;
853 	atomic_t		num_qps;
854 	u32			issi;
855 	struct mlx5e_resources  mlx5e_res;
856 	struct mlx5_vxlan       *vxlan;
857 	struct {
858 		struct mlx5_rsvd_gids	reserved_gids;
859 		u32			roce_en;
860 	} roce;
861 #ifdef CONFIG_MLX5_FPGA
862 	struct mlx5_fpga_device *fpga;
863 #endif
864 #ifdef CONFIG_RFS_ACCEL
865 	struct cpu_rmap         *rmap;
866 #endif
867 	struct mlx5_clock        clock;
868 	struct mlx5_ib_clock_info  *clock_info;
869 	struct page             *clock_info_page;
870 	struct mlx5_fw_tracer   *tracer;
871 };
872 
873 struct mlx5_db {
874 	__be32			*db;
875 	union {
876 		struct mlx5_db_pgdir		*pgdir;
877 		struct mlx5_ib_user_db_page	*user_page;
878 	}			u;
879 	dma_addr_t		dma;
880 	int			index;
881 };
882 
883 enum {
884 	MLX5_COMP_EQ_SIZE = 1024,
885 };
886 
887 enum {
888 	MLX5_PTYS_IB = 1 << 0,
889 	MLX5_PTYS_EN = 1 << 2,
890 };
891 
892 typedef void (*mlx5_cmd_cbk_t)(int status, void *context);
893 
894 enum {
895 	MLX5_CMD_ENT_STATE_PENDING_COMP,
896 };
897 
898 struct mlx5_cmd_work_ent {
899 	unsigned long		state;
900 	struct mlx5_cmd_msg    *in;
901 	struct mlx5_cmd_msg    *out;
902 	void		       *uout;
903 	int			uout_size;
904 	mlx5_cmd_cbk_t		callback;
905 	struct delayed_work	cb_timeout_work;
906 	void		       *context;
907 	int			idx;
908 	struct completion	done;
909 	struct mlx5_cmd        *cmd;
910 	struct work_struct	work;
911 	struct mlx5_cmd_layout *lay;
912 	int			ret;
913 	int			page_queue;
914 	u8			status;
915 	u8			token;
916 	u64			ts1;
917 	u64			ts2;
918 	u16			op;
919 	bool			polling;
920 };
921 
922 struct mlx5_pas {
923 	u64	pa;
924 	u8	log_sz;
925 };
926 
927 enum phy_port_state {
928 	MLX5_AAA_111
929 };
930 
931 struct mlx5_hca_vport_context {
932 	u32			field_select;
933 	bool			sm_virt_aware;
934 	bool			has_smi;
935 	bool			has_raw;
936 	enum port_state_policy	policy;
937 	enum phy_port_state	phys_state;
938 	enum ib_port_state	vport_state;
939 	u8			port_physical_state;
940 	u64			sys_image_guid;
941 	u64			port_guid;
942 	u64			node_guid;
943 	u32			cap_mask1;
944 	u32			cap_mask1_perm;
945 	u32			cap_mask2;
946 	u32			cap_mask2_perm;
947 	u16			lid;
948 	u8			init_type_reply; /* bitmask: see ib spec 14.2.5.6 InitTypeReply */
949 	u8			lmc;
950 	u8			subnet_timeout;
951 	u16			sm_lid;
952 	u8			sm_sl;
953 	u16			qkey_violation_counter;
954 	u16			pkey_violation_counter;
955 	bool			grh_required;
956 };
957 
958 static inline void *mlx5_buf_offset(struct mlx5_frag_buf *buf, int offset)
959 {
960 		return buf->frags->buf + offset;
961 }
962 
963 #define STRUCT_FIELD(header, field) \
964 	.struct_offset_bytes = offsetof(struct ib_unpacked_ ## header, field),      \
965 	.struct_size_bytes   = sizeof((struct ib_unpacked_ ## header *)0)->field
966 
967 static inline struct mlx5_core_dev *pci2mlx5_core_dev(struct pci_dev *pdev)
968 {
969 	return pci_get_drvdata(pdev);
970 }
971 
972 extern struct dentry *mlx5_debugfs_root;
973 
974 static inline u16 fw_rev_maj(struct mlx5_core_dev *dev)
975 {
976 	return ioread32be(&dev->iseg->fw_rev) & 0xffff;
977 }
978 
979 static inline u16 fw_rev_min(struct mlx5_core_dev *dev)
980 {
981 	return ioread32be(&dev->iseg->fw_rev) >> 16;
982 }
983 
984 static inline u16 fw_rev_sub(struct mlx5_core_dev *dev)
985 {
986 	return ioread32be(&dev->iseg->cmdif_rev_fw_sub) & 0xffff;
987 }
988 
989 static inline u16 cmdif_rev(struct mlx5_core_dev *dev)
990 {
991 	return ioread32be(&dev->iseg->cmdif_rev_fw_sub) >> 16;
992 }
993 
994 static inline u32 mlx5_base_mkey(const u32 key)
995 {
996 	return key & 0xffffff00u;
997 }
998 
999 static inline void mlx5_fill_fbc_offset(u8 log_stride, u8 log_sz,
1000 					u16 strides_offset,
1001 					struct mlx5_frag_buf_ctrl *fbc)
1002 {
1003 	fbc->log_stride = log_stride;
1004 	fbc->log_sz     = log_sz;
1005 	fbc->sz_m1	= (1 << fbc->log_sz) - 1;
1006 	fbc->log_frag_strides = PAGE_SHIFT - fbc->log_stride;
1007 	fbc->frag_sz_m1	= (1 << fbc->log_frag_strides) - 1;
1008 	fbc->strides_offset = strides_offset;
1009 }
1010 
1011 static inline void mlx5_fill_fbc(u8 log_stride, u8 log_sz,
1012 				 struct mlx5_frag_buf_ctrl *fbc)
1013 {
1014 	mlx5_fill_fbc_offset(log_stride, log_sz, 0, fbc);
1015 }
1016 
1017 static inline void mlx5_core_init_cq_frag_buf(struct mlx5_frag_buf_ctrl *fbc,
1018 					      void *cqc)
1019 {
1020 	mlx5_fill_fbc(6 + MLX5_GET(cqc, cqc, cqe_sz),
1021 		      MLX5_GET(cqc, cqc, log_cq_size),
1022 		      fbc);
1023 }
1024 
1025 static inline void *mlx5_frag_buf_get_wqe(struct mlx5_frag_buf_ctrl *fbc,
1026 					  u32 ix)
1027 {
1028 	unsigned int frag;
1029 
1030 	ix  += fbc->strides_offset;
1031 	frag = ix >> fbc->log_frag_strides;
1032 
1033 	return fbc->frag_buf.frags[frag].buf +
1034 		((fbc->frag_sz_m1 & ix) << fbc->log_stride);
1035 }
1036 
1037 int mlx5_cmd_init(struct mlx5_core_dev *dev);
1038 void mlx5_cmd_cleanup(struct mlx5_core_dev *dev);
1039 void mlx5_cmd_use_events(struct mlx5_core_dev *dev);
1040 void mlx5_cmd_use_polling(struct mlx5_core_dev *dev);
1041 
1042 int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out,
1043 		  int out_size);
1044 int mlx5_cmd_exec_cb(struct mlx5_core_dev *dev, void *in, int in_size,
1045 		     void *out, int out_size, mlx5_cmd_cbk_t callback,
1046 		     void *context);
1047 int mlx5_cmd_exec_polling(struct mlx5_core_dev *dev, void *in, int in_size,
1048 			  void *out, int out_size);
1049 void mlx5_cmd_mbox_status(void *out, u8 *status, u32 *syndrome);
1050 
1051 int mlx5_core_get_caps(struct mlx5_core_dev *dev, enum mlx5_cap_type cap_type);
1052 int mlx5_cmd_alloc_uar(struct mlx5_core_dev *dev, u32 *uarn);
1053 int mlx5_cmd_free_uar(struct mlx5_core_dev *dev, u32 uarn);
1054 void mlx5_health_cleanup(struct mlx5_core_dev *dev);
1055 int mlx5_health_init(struct mlx5_core_dev *dev);
1056 void mlx5_start_health_poll(struct mlx5_core_dev *dev);
1057 void mlx5_stop_health_poll(struct mlx5_core_dev *dev, bool disable_health);
1058 void mlx5_drain_health_wq(struct mlx5_core_dev *dev);
1059 void mlx5_trigger_health_work(struct mlx5_core_dev *dev);
1060 void mlx5_drain_health_recovery(struct mlx5_core_dev *dev);
1061 int mlx5_buf_alloc_node(struct mlx5_core_dev *dev, int size,
1062 			struct mlx5_frag_buf *buf, int node);
1063 int mlx5_buf_alloc(struct mlx5_core_dev *dev,
1064 		   int size, struct mlx5_frag_buf *buf);
1065 void mlx5_buf_free(struct mlx5_core_dev *dev, struct mlx5_frag_buf *buf);
1066 int mlx5_frag_buf_alloc_node(struct mlx5_core_dev *dev, int size,
1067 			     struct mlx5_frag_buf *buf, int node);
1068 void mlx5_frag_buf_free(struct mlx5_core_dev *dev, struct mlx5_frag_buf *buf);
1069 struct mlx5_cmd_mailbox *mlx5_alloc_cmd_mailbox_chain(struct mlx5_core_dev *dev,
1070 						      gfp_t flags, int npages);
1071 void mlx5_free_cmd_mailbox_chain(struct mlx5_core_dev *dev,
1072 				 struct mlx5_cmd_mailbox *head);
1073 int mlx5_core_create_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
1074 			 struct mlx5_srq_attr *in);
1075 int mlx5_core_destroy_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq);
1076 int mlx5_core_query_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
1077 			struct mlx5_srq_attr *out);
1078 int mlx5_core_arm_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
1079 		      u16 lwm, int is_srq);
1080 void mlx5_init_mkey_table(struct mlx5_core_dev *dev);
1081 void mlx5_cleanup_mkey_table(struct mlx5_core_dev *dev);
1082 int mlx5_core_create_mkey_cb(struct mlx5_core_dev *dev,
1083 			     struct mlx5_core_mkey *mkey,
1084 			     u32 *in, int inlen,
1085 			     u32 *out, int outlen,
1086 			     mlx5_cmd_cbk_t callback, void *context);
1087 int mlx5_core_create_mkey(struct mlx5_core_dev *dev,
1088 			  struct mlx5_core_mkey *mkey,
1089 			  u32 *in, int inlen);
1090 int mlx5_core_destroy_mkey(struct mlx5_core_dev *dev,
1091 			   struct mlx5_core_mkey *mkey);
1092 int mlx5_core_query_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mkey *mkey,
1093 			 u32 *out, int outlen);
1094 int mlx5_core_alloc_pd(struct mlx5_core_dev *dev, u32 *pdn);
1095 int mlx5_core_dealloc_pd(struct mlx5_core_dev *dev, u32 pdn);
1096 int mlx5_core_mad_ifc(struct mlx5_core_dev *dev, const void *inb, void *outb,
1097 		      u16 opmod, u8 port);
1098 void mlx5_pagealloc_init(struct mlx5_core_dev *dev);
1099 void mlx5_pagealloc_cleanup(struct mlx5_core_dev *dev);
1100 int mlx5_pagealloc_start(struct mlx5_core_dev *dev);
1101 void mlx5_pagealloc_stop(struct mlx5_core_dev *dev);
1102 void mlx5_core_req_pages_handler(struct mlx5_core_dev *dev, u16 func_id,
1103 				 s32 npages);
1104 int mlx5_satisfy_startup_pages(struct mlx5_core_dev *dev, int boot);
1105 int mlx5_reclaim_startup_pages(struct mlx5_core_dev *dev);
1106 void mlx5_register_debugfs(void);
1107 void mlx5_unregister_debugfs(void);
1108 
1109 void mlx5_fill_page_array(struct mlx5_frag_buf *buf, __be64 *pas);
1110 void mlx5_fill_page_frag_array(struct mlx5_frag_buf *frag_buf, __be64 *pas);
1111 void mlx5_rsc_event(struct mlx5_core_dev *dev, u32 rsn, int event_type);
1112 void mlx5_srq_event(struct mlx5_core_dev *dev, u32 srqn, int event_type);
1113 struct mlx5_core_srq *mlx5_core_get_srq(struct mlx5_core_dev *dev, u32 srqn);
1114 int mlx5_vector2eqn(struct mlx5_core_dev *dev, int vector, int *eqn,
1115 		    unsigned int *irqn);
1116 int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
1117 int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
1118 
1119 int mlx5_qp_debugfs_init(struct mlx5_core_dev *dev);
1120 void mlx5_qp_debugfs_cleanup(struct mlx5_core_dev *dev);
1121 int mlx5_core_access_reg(struct mlx5_core_dev *dev, void *data_in,
1122 			 int size_in, void *data_out, int size_out,
1123 			 u16 reg_num, int arg, int write);
1124 
1125 int mlx5_db_alloc(struct mlx5_core_dev *dev, struct mlx5_db *db);
1126 int mlx5_db_alloc_node(struct mlx5_core_dev *dev, struct mlx5_db *db,
1127 		       int node);
1128 void mlx5_db_free(struct mlx5_core_dev *dev, struct mlx5_db *db);
1129 
1130 const char *mlx5_command_str(int command);
1131 int mlx5_cmdif_debugfs_init(struct mlx5_core_dev *dev);
1132 void mlx5_cmdif_debugfs_cleanup(struct mlx5_core_dev *dev);
1133 int mlx5_core_create_psv(struct mlx5_core_dev *dev, u32 pdn,
1134 			 int npsvs, u32 *sig_index);
1135 int mlx5_core_destroy_psv(struct mlx5_core_dev *dev, int psv_num);
1136 void mlx5_core_put_rsc(struct mlx5_core_rsc_common *common);
1137 int mlx5_query_odp_caps(struct mlx5_core_dev *dev,
1138 			struct mlx5_odp_caps *odp_caps);
1139 int mlx5_core_query_ib_ppcnt(struct mlx5_core_dev *dev,
1140 			     u8 port_num, void *out, size_t sz);
1141 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
1142 int mlx5_core_page_fault_resume(struct mlx5_core_dev *dev, u32 token,
1143 				u32 wq_num, u8 type, int error);
1144 #endif
1145 
1146 int mlx5_init_rl_table(struct mlx5_core_dev *dev);
1147 void mlx5_cleanup_rl_table(struct mlx5_core_dev *dev);
1148 int mlx5_rl_add_rate(struct mlx5_core_dev *dev, u16 *index,
1149 		     struct mlx5_rate_limit *rl);
1150 void mlx5_rl_remove_rate(struct mlx5_core_dev *dev, struct mlx5_rate_limit *rl);
1151 bool mlx5_rl_is_in_range(struct mlx5_core_dev *dev, u32 rate);
1152 bool mlx5_rl_are_equal(struct mlx5_rate_limit *rl_0,
1153 		       struct mlx5_rate_limit *rl_1);
1154 int mlx5_alloc_bfreg(struct mlx5_core_dev *mdev, struct mlx5_sq_bfreg *bfreg,
1155 		     bool map_wc, bool fast_path);
1156 void mlx5_free_bfreg(struct mlx5_core_dev *mdev, struct mlx5_sq_bfreg *bfreg);
1157 
1158 unsigned int mlx5_core_reserved_gids_count(struct mlx5_core_dev *dev);
1159 int mlx5_core_roce_gid_set(struct mlx5_core_dev *dev, unsigned int index,
1160 			   u8 roce_version, u8 roce_l3_type, const u8 *gid,
1161 			   const u8 *mac, bool vlan, u16 vlan_id, u8 port_num);
1162 
1163 static inline int fw_initializing(struct mlx5_core_dev *dev)
1164 {
1165 	return ioread32be(&dev->iseg->initializing) >> 31;
1166 }
1167 
1168 static inline u32 mlx5_mkey_to_idx(u32 mkey)
1169 {
1170 	return mkey >> 8;
1171 }
1172 
1173 static inline u32 mlx5_idx_to_mkey(u32 mkey_idx)
1174 {
1175 	return mkey_idx << 8;
1176 }
1177 
1178 static inline u8 mlx5_mkey_variant(u32 mkey)
1179 {
1180 	return mkey & 0xff;
1181 }
1182 
1183 enum {
1184 	MLX5_PROF_MASK_QP_SIZE		= (u64)1 << 0,
1185 	MLX5_PROF_MASK_MR_CACHE		= (u64)1 << 1,
1186 };
1187 
1188 enum {
1189 	MR_CACHE_LAST_STD_ENTRY = 20,
1190 	MLX5_IMR_MTT_CACHE_ENTRY,
1191 	MLX5_IMR_KSM_CACHE_ENTRY,
1192 	MAX_MR_CACHE_ENTRIES
1193 };
1194 
1195 enum {
1196 	MLX5_INTERFACE_PROTOCOL_IB  = 0,
1197 	MLX5_INTERFACE_PROTOCOL_ETH = 1,
1198 };
1199 
1200 struct mlx5_interface {
1201 	void *			(*add)(struct mlx5_core_dev *dev);
1202 	void			(*remove)(struct mlx5_core_dev *dev, void *context);
1203 	int			(*attach)(struct mlx5_core_dev *dev, void *context);
1204 	void			(*detach)(struct mlx5_core_dev *dev, void *context);
1205 	void			(*event)(struct mlx5_core_dev *dev, void *context,
1206 					 enum mlx5_dev_event event, unsigned long param);
1207 	void			(*pfault)(struct mlx5_core_dev *dev,
1208 					  void *context,
1209 					  struct mlx5_pagefault *pfault);
1210 	void *                  (*get_dev)(void *context);
1211 	int			protocol;
1212 	struct list_head	list;
1213 };
1214 
1215 void *mlx5_get_protocol_dev(struct mlx5_core_dev *mdev, int protocol);
1216 int mlx5_register_interface(struct mlx5_interface *intf);
1217 void mlx5_unregister_interface(struct mlx5_interface *intf);
1218 int mlx5_core_query_vendor_id(struct mlx5_core_dev *mdev, u32 *vendor_id);
1219 
1220 int mlx5_cmd_create_vport_lag(struct mlx5_core_dev *dev);
1221 int mlx5_cmd_destroy_vport_lag(struct mlx5_core_dev *dev);
1222 bool mlx5_lag_is_active(struct mlx5_core_dev *dev);
1223 struct net_device *mlx5_lag_get_roce_netdev(struct mlx5_core_dev *dev);
1224 int mlx5_lag_query_cong_counters(struct mlx5_core_dev *dev,
1225 				 u64 *values,
1226 				 int num_counters,
1227 				 size_t *offsets);
1228 struct mlx5_uars_page *mlx5_get_uars_page(struct mlx5_core_dev *mdev);
1229 void mlx5_put_uars_page(struct mlx5_core_dev *mdev, struct mlx5_uars_page *up);
1230 
1231 #ifndef CONFIG_MLX5_CORE_IPOIB
1232 static inline
1233 struct net_device *mlx5_rdma_netdev_alloc(struct mlx5_core_dev *mdev,
1234 					  struct ib_device *ibdev,
1235 					  const char *name,
1236 					  void (*setup)(struct net_device *))
1237 {
1238 	return ERR_PTR(-EOPNOTSUPP);
1239 }
1240 #else
1241 struct net_device *mlx5_rdma_netdev_alloc(struct mlx5_core_dev *mdev,
1242 					  struct ib_device *ibdev,
1243 					  const char *name,
1244 					  void (*setup)(struct net_device *));
1245 #endif /* CONFIG_MLX5_CORE_IPOIB */
1246 
1247 struct mlx5_profile {
1248 	u64	mask;
1249 	u8	log_max_qp;
1250 	struct {
1251 		int	size;
1252 		int	limit;
1253 	} mr_cache[MAX_MR_CACHE_ENTRIES];
1254 };
1255 
1256 enum {
1257 	MLX5_PCI_DEV_IS_VF		= 1 << 0,
1258 };
1259 
1260 static inline int mlx5_core_is_pf(struct mlx5_core_dev *dev)
1261 {
1262 	return !(dev->priv.pci_dev_data & MLX5_PCI_DEV_IS_VF);
1263 }
1264 
1265 #define MLX5_TOTAL_VPORTS(mdev) (1 + pci_sriov_get_totalvfs((mdev)->pdev))
1266 #define MLX5_VPORT_MANAGER(mdev) \
1267 	(MLX5_CAP_GEN(mdev, vport_group_manager) && \
1268 	 (MLX5_CAP_GEN(mdev, port_type) == MLX5_CAP_PORT_TYPE_ETH) && \
1269 	 mlx5_core_is_pf(mdev))
1270 
1271 static inline int mlx5_get_gid_table_len(u16 param)
1272 {
1273 	if (param > 4) {
1274 		pr_warn("gid table length is zero\n");
1275 		return 0;
1276 	}
1277 
1278 	return 8 * (1 << param);
1279 }
1280 
1281 static inline bool mlx5_rl_is_supported(struct mlx5_core_dev *dev)
1282 {
1283 	return !!(dev->priv.rl_table.max_size);
1284 }
1285 
1286 static inline int mlx5_core_is_mp_slave(struct mlx5_core_dev *dev)
1287 {
1288 	return MLX5_CAP_GEN(dev, affiliate_nic_vport_criteria) &&
1289 	       MLX5_CAP_GEN(dev, num_vhca_ports) <= 1;
1290 }
1291 
1292 static inline int mlx5_core_is_mp_master(struct mlx5_core_dev *dev)
1293 {
1294 	return MLX5_CAP_GEN(dev, num_vhca_ports) > 1;
1295 }
1296 
1297 static inline int mlx5_core_mp_enabled(struct mlx5_core_dev *dev)
1298 {
1299 	return mlx5_core_is_mp_slave(dev) ||
1300 	       mlx5_core_is_mp_master(dev);
1301 }
1302 
1303 static inline int mlx5_core_native_port_num(struct mlx5_core_dev *dev)
1304 {
1305 	if (!mlx5_core_mp_enabled(dev))
1306 		return 1;
1307 
1308 	return MLX5_CAP_GEN(dev, native_port_num);
1309 }
1310 
1311 enum {
1312 	MLX5_TRIGGERED_CMD_COMP = (u64)1 << 32,
1313 };
1314 
1315 static inline const struct cpumask *
1316 mlx5_get_vector_affinity_hint(struct mlx5_core_dev *dev, int vector)
1317 {
1318 	return dev->priv.irq_info[vector].mask;
1319 }
1320 
1321 #endif /* MLX5_DRIVER_H */
1322