xref: /linux-6.15/include/linux/mlx5/driver.h (revision ff9fbcaf) 
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/xarray.h>
45 #include <linux/workqueue.h>
46 #include <linux/mempool.h>
47 #include <linux/interrupt.h>
48 #include <linux/idr.h>
49 #include <linux/notifier.h>
50 #include <linux/refcount.h>
51 #include <linux/auxiliary_bus.h>
52 #include <linux/mutex.h>
53 
54 #include <linux/mlx5/device.h>
55 #include <linux/mlx5/doorbell.h>
56 #include <linux/mlx5/eq.h>
57 #include <linux/timecounter.h>
58 #include <linux/ptp_clock_kernel.h>
59 #include <net/devlink.h>
60 
61 #define MLX5_ADEV_NAME "mlx5_core"
62 
63 #define MLX5_IRQ_EQ_CTRL (U8_MAX)
64 
65 enum {
66 	MLX5_BOARD_ID_LEN = 64,
67 };
68 
69 enum {
70 	MLX5_CMD_WQ_MAX_NAME	= 32,
71 };
72 
73 enum {
74 	CMD_OWNER_SW		= 0x0,
75 	CMD_OWNER_HW		= 0x1,
76 	CMD_STATUS_SUCCESS	= 0,
77 };
78 
79 enum mlx5_sqp_t {
80 	MLX5_SQP_SMI		= 0,
81 	MLX5_SQP_GSI		= 1,
82 	MLX5_SQP_IEEE_1588	= 2,
83 	MLX5_SQP_SNIFFER	= 3,
84 	MLX5_SQP_SYNC_UMR	= 4,
85 };
86 
87 enum {
88 	MLX5_MAX_PORTS	= 8,
89 };
90 
91 enum {
92 	MLX5_ATOMIC_MODE_OFFSET = 16,
93 	MLX5_ATOMIC_MODE_IB_COMP = 1,
94 	MLX5_ATOMIC_MODE_CX = 2,
95 	MLX5_ATOMIC_MODE_8B = 3,
96 	MLX5_ATOMIC_MODE_16B = 4,
97 	MLX5_ATOMIC_MODE_32B = 5,
98 	MLX5_ATOMIC_MODE_64B = 6,
99 	MLX5_ATOMIC_MODE_128B = 7,
100 	MLX5_ATOMIC_MODE_256B = 8,
101 };
102 
103 enum {
104 	MLX5_REG_SBPR            = 0xb001,
105 	MLX5_REG_SBCM            = 0xb002,
106 	MLX5_REG_QPTS            = 0x4002,
107 	MLX5_REG_QETCR		 = 0x4005,
108 	MLX5_REG_QTCT		 = 0x400a,
109 	MLX5_REG_QPDPM           = 0x4013,
110 	MLX5_REG_QCAM            = 0x4019,
111 	MLX5_REG_DCBX_PARAM      = 0x4020,
112 	MLX5_REG_DCBX_APP        = 0x4021,
113 	MLX5_REG_FPGA_CAP	 = 0x4022,
114 	MLX5_REG_FPGA_CTRL	 = 0x4023,
115 	MLX5_REG_FPGA_ACCESS_REG = 0x4024,
116 	MLX5_REG_CORE_DUMP	 = 0x402e,
117 	MLX5_REG_PCAP		 = 0x5001,
118 	MLX5_REG_PMTU		 = 0x5003,
119 	MLX5_REG_PTYS		 = 0x5004,
120 	MLX5_REG_PAOS		 = 0x5006,
121 	MLX5_REG_PFCC            = 0x5007,
122 	MLX5_REG_PPCNT		 = 0x5008,
123 	MLX5_REG_PPTB            = 0x500b,
124 	MLX5_REG_PBMC            = 0x500c,
125 	MLX5_REG_PMAOS		 = 0x5012,
126 	MLX5_REG_PUDE		 = 0x5009,
127 	MLX5_REG_PMPE		 = 0x5010,
128 	MLX5_REG_PELC		 = 0x500e,
129 	MLX5_REG_PVLC		 = 0x500f,
130 	MLX5_REG_PCMR		 = 0x5041,
131 	MLX5_REG_PDDR		 = 0x5031,
132 	MLX5_REG_PMLP		 = 0x5002,
133 	MLX5_REG_PPLM		 = 0x5023,
134 	MLX5_REG_PCAM		 = 0x507f,
135 	MLX5_REG_NODE_DESC	 = 0x6001,
136 	MLX5_REG_HOST_ENDIANNESS = 0x7004,
137 	MLX5_REG_MTCAP		 = 0x9009,
138 	MLX5_REG_MTMP		 = 0x900A,
139 	MLX5_REG_MCIA		 = 0x9014,
140 	MLX5_REG_MFRL		 = 0x9028,
141 	MLX5_REG_MLCR		 = 0x902b,
142 	MLX5_REG_MRTC		 = 0x902d,
143 	MLX5_REG_MTRC_CAP	 = 0x9040,
144 	MLX5_REG_MTRC_CONF	 = 0x9041,
145 	MLX5_REG_MTRC_STDB	 = 0x9042,
146 	MLX5_REG_MTRC_CTRL	 = 0x9043,
147 	MLX5_REG_MPEIN		 = 0x9050,
148 	MLX5_REG_MPCNT		 = 0x9051,
149 	MLX5_REG_MTPPS		 = 0x9053,
150 	MLX5_REG_MTPPSE		 = 0x9054,
151 	MLX5_REG_MTUTC		 = 0x9055,
152 	MLX5_REG_MPEGC		 = 0x9056,
153 	MLX5_REG_MPIR		 = 0x9059,
154 	MLX5_REG_MCQS		 = 0x9060,
155 	MLX5_REG_MCQI		 = 0x9061,
156 	MLX5_REG_MCC		 = 0x9062,
157 	MLX5_REG_MCDA		 = 0x9063,
158 	MLX5_REG_MCAM		 = 0x907f,
159 	MLX5_REG_MSECQ		 = 0x9155,
160 	MLX5_REG_MSEES		 = 0x9156,
161 	MLX5_REG_MIRC		 = 0x9162,
162 	MLX5_REG_SBCAM		 = 0xB01F,
163 	MLX5_REG_RESOURCE_DUMP   = 0xC000,
164 	MLX5_REG_DTOR            = 0xC00E,
165 };
166 
167 enum mlx5_qpts_trust_state {
168 	MLX5_QPTS_TRUST_PCP  = 1,
169 	MLX5_QPTS_TRUST_DSCP = 2,
170 };
171 
172 enum mlx5_dcbx_oper_mode {
173 	MLX5E_DCBX_PARAM_VER_OPER_HOST  = 0x0,
174 	MLX5E_DCBX_PARAM_VER_OPER_AUTO  = 0x3,
175 };
176 
177 enum {
178 	MLX5_ATOMIC_OPS_CMP_SWAP	= 1 << 0,
179 	MLX5_ATOMIC_OPS_FETCH_ADD	= 1 << 1,
180 	MLX5_ATOMIC_OPS_EXTENDED_CMP_SWAP = 1 << 2,
181 	MLX5_ATOMIC_OPS_EXTENDED_FETCH_ADD = 1 << 3,
182 };
183 
184 enum mlx5_page_fault_resume_flags {
185 	MLX5_PAGE_FAULT_RESUME_REQUESTOR = 1 << 0,
186 	MLX5_PAGE_FAULT_RESUME_WRITE	 = 1 << 1,
187 	MLX5_PAGE_FAULT_RESUME_RDMA	 = 1 << 2,
188 	MLX5_PAGE_FAULT_RESUME_ERROR	 = 1 << 7,
189 };
190 
191 enum dbg_rsc_type {
192 	MLX5_DBG_RSC_QP,
193 	MLX5_DBG_RSC_EQ,
194 	MLX5_DBG_RSC_CQ,
195 };
196 
197 enum port_state_policy {
198 	MLX5_POLICY_DOWN	= 0,
199 	MLX5_POLICY_UP		= 1,
200 	MLX5_POLICY_FOLLOW	= 2,
201 	MLX5_POLICY_INVALID	= 0xffffffff
202 };
203 
204 enum mlx5_coredev_type {
205 	MLX5_COREDEV_PF,
206 	MLX5_COREDEV_VF,
207 	MLX5_COREDEV_SF,
208 };
209 
210 struct mlx5_field_desc {
211 	int			i;
212 };
213 
214 struct mlx5_rsc_debug {
215 	struct mlx5_core_dev   *dev;
216 	void		       *object;
217 	enum dbg_rsc_type	type;
218 	struct dentry	       *root;
219 	struct mlx5_field_desc	fields[];
220 };
221 
222 enum mlx5_dev_event {
223 	MLX5_DEV_EVENT_SYS_ERROR = 128, /* 0 - 127 are FW events */
224 	MLX5_DEV_EVENT_PORT_AFFINITY = 129,
225 	MLX5_DEV_EVENT_MULTIPORT_ESW = 130,
226 };
227 
228 enum mlx5_port_status {
229 	MLX5_PORT_UP        = 1,
230 	MLX5_PORT_DOWN      = 2,
231 };
232 
233 enum mlx5_cmdif_state {
234 	MLX5_CMDIF_STATE_UNINITIALIZED,
235 	MLX5_CMDIF_STATE_UP,
236 	MLX5_CMDIF_STATE_DOWN,
237 };
238 
239 struct mlx5_cmd_first {
240 	__be32		data[4];
241 };
242 
243 struct mlx5_cmd_msg {
244 	struct list_head		list;
245 	struct cmd_msg_cache	       *parent;
246 	u32				len;
247 	struct mlx5_cmd_first		first;
248 	struct mlx5_cmd_mailbox	       *next;
249 };
250 
251 struct mlx5_cmd_debug {
252 	struct dentry	       *dbg_root;
253 	void		       *in_msg;
254 	void		       *out_msg;
255 	u8			status;
256 	u16			inlen;
257 	u16			outlen;
258 };
259 
260 struct cmd_msg_cache {
261 	/* protect block chain allocations
262 	 */
263 	spinlock_t		lock;
264 	struct list_head	head;
265 	unsigned int		max_inbox_size;
266 	unsigned int		num_ent;
267 };
268 
269 enum {
270 	MLX5_NUM_COMMAND_CACHES = 5,
271 };
272 
273 struct mlx5_cmd_stats {
274 	u64		sum;
275 	u64		n;
276 	/* number of times command failed */
277 	u64		failed;
278 	/* number of times command failed on bad status returned by FW */
279 	u64		failed_mbox_status;
280 	/* last command failed returned errno */
281 	u32		last_failed_errno;
282 	/* last bad status returned by FW */
283 	u8		last_failed_mbox_status;
284 	/* last command failed syndrome returned by FW */
285 	u32		last_failed_syndrome;
286 	struct dentry  *root;
287 	/* protect command average calculations */
288 	spinlock_t	lock;
289 };
290 
291 struct mlx5_cmd {
292 	struct mlx5_nb    nb;
293 
294 	/* members which needs to be queried or reinitialized each reload */
295 	struct {
296 		u16		cmdif_rev;
297 		u8		log_sz;
298 		u8		log_stride;
299 		int		max_reg_cmds;
300 		unsigned long	bitmask;
301 		struct semaphore sem;
302 		struct semaphore pages_sem;
303 		struct semaphore throttle_sem;
304 	} vars;
305 	enum mlx5_cmdif_state	state;
306 	void	       *cmd_alloc_buf;
307 	dma_addr_t	alloc_dma;
308 	int		alloc_size;
309 	void	       *cmd_buf;
310 	dma_addr_t	dma;
311 
312 	/* protect command queue allocations
313 	 */
314 	spinlock_t	alloc_lock;
315 
316 	/* protect token allocations
317 	 */
318 	spinlock_t	token_lock;
319 	u8		token;
320 	char		wq_name[MLX5_CMD_WQ_MAX_NAME];
321 	struct workqueue_struct *wq;
322 	int	mode;
323 	u16     allowed_opcode;
324 	struct mlx5_cmd_work_ent *ent_arr[MLX5_MAX_COMMANDS];
325 	struct dma_pool *pool;
326 	struct mlx5_cmd_debug dbg;
327 	struct cmd_msg_cache cache[MLX5_NUM_COMMAND_CACHES];
328 	int checksum_disabled;
329 	struct xarray stats;
330 };
331 
332 struct mlx5_cmd_mailbox {
333 	void	       *buf;
334 	dma_addr_t	dma;
335 	struct mlx5_cmd_mailbox *next;
336 };
337 
338 struct mlx5_buf_list {
339 	void		       *buf;
340 	dma_addr_t		map;
341 };
342 
343 struct mlx5_frag_buf {
344 	struct mlx5_buf_list	*frags;
345 	int			npages;
346 	int			size;
347 	u8			page_shift;
348 };
349 
350 struct mlx5_frag_buf_ctrl {
351 	struct mlx5_buf_list   *frags;
352 	u32			sz_m1;
353 	u16			frag_sz_m1;
354 	u16			strides_offset;
355 	u8			log_sz;
356 	u8			log_stride;
357 	u8			log_frag_strides;
358 };
359 
360 struct mlx5_core_psv {
361 	u32	psv_idx;
362 	struct psv_layout {
363 		u32	pd;
364 		u16	syndrome;
365 		u16	reserved;
366 		u16	bg;
367 		u16	app_tag;
368 		u32	ref_tag;
369 	} psv;
370 };
371 
372 struct mlx5_core_sig_ctx {
373 	struct mlx5_core_psv	psv_memory;
374 	struct mlx5_core_psv	psv_wire;
375 	struct ib_sig_err       err_item;
376 	bool			sig_status_checked;
377 	bool			sig_err_exists;
378 	u32			sigerr_count;
379 };
380 
381 #define MLX5_24BIT_MASK		((1 << 24) - 1)
382 
383 enum mlx5_res_type {
384 	MLX5_RES_QP	= MLX5_EVENT_QUEUE_TYPE_QP,
385 	MLX5_RES_RQ	= MLX5_EVENT_QUEUE_TYPE_RQ,
386 	MLX5_RES_SQ	= MLX5_EVENT_QUEUE_TYPE_SQ,
387 	MLX5_RES_SRQ	= 3,
388 	MLX5_RES_XSRQ	= 4,
389 	MLX5_RES_XRQ	= 5,
390 };
391 
392 struct mlx5_core_rsc_common {
393 	enum mlx5_res_type	res;
394 	refcount_t		refcount;
395 	struct completion	free;
396 };
397 
398 struct mlx5_uars_page {
399 	void __iomem	       *map;
400 	bool			wc;
401 	u32			index;
402 	struct list_head	list;
403 	unsigned int		bfregs;
404 	unsigned long	       *reg_bitmap; /* for non fast path bf regs */
405 	unsigned long	       *fp_bitmap;
406 	unsigned int		reg_avail;
407 	unsigned int		fp_avail;
408 	struct kref		ref_count;
409 	struct mlx5_core_dev   *mdev;
410 };
411 
412 struct mlx5_bfreg_head {
413 	/* protect blue flame registers allocations */
414 	struct mutex		lock;
415 	struct list_head	list;
416 };
417 
418 struct mlx5_bfreg_data {
419 	struct mlx5_bfreg_head	reg_head;
420 	struct mlx5_bfreg_head	wc_head;
421 };
422 
423 struct mlx5_sq_bfreg {
424 	void __iomem	       *map;
425 	struct mlx5_uars_page  *up;
426 	bool			wc;
427 	u32			index;
428 	unsigned int		offset;
429 };
430 
431 struct mlx5_core_health {
432 	struct health_buffer __iomem   *health;
433 	__be32 __iomem		       *health_counter;
434 	struct timer_list		timer;
435 	u32				prev;
436 	int				miss_counter;
437 	u8				synd;
438 	u32				fatal_error;
439 	u32				crdump_size;
440 	struct workqueue_struct	       *wq;
441 	unsigned long			flags;
442 	struct work_struct		fatal_report_work;
443 	struct work_struct		report_work;
444 	struct devlink_health_reporter *fw_reporter;
445 	struct devlink_health_reporter *fw_fatal_reporter;
446 	struct devlink_health_reporter *vnic_reporter;
447 	struct delayed_work		update_fw_log_ts_work;
448 };
449 
450 enum {
451 	MLX5_PF_NOTIFY_DISABLE_VF,
452 	MLX5_PF_NOTIFY_ENABLE_VF,
453 };
454 
455 struct mlx5_vf_context {
456 	int	enabled;
457 	u64	port_guid;
458 	u64	node_guid;
459 	/* Valid bits are used to validate administrative guid only.
460 	 * Enabled after ndo_set_vf_guid
461 	 */
462 	u8	port_guid_valid:1;
463 	u8	node_guid_valid:1;
464 	enum port_state_policy	policy;
465 	struct blocking_notifier_head notifier;
466 };
467 
468 struct mlx5_core_sriov {
469 	struct mlx5_vf_context	*vfs_ctx;
470 	int			num_vfs;
471 	u16			max_vfs;
472 	u16			max_ec_vfs;
473 };
474 
475 struct mlx5_fc_pool {
476 	struct mlx5_core_dev *dev;
477 	struct mutex pool_lock; /* protects pool lists */
478 	struct list_head fully_used;
479 	struct list_head partially_used;
480 	struct list_head unused;
481 	int available_fcs;
482 	int used_fcs;
483 	int threshold;
484 };
485 
486 struct mlx5_fc_stats {
487 	spinlock_t counters_idr_lock; /* protects counters_idr */
488 	struct idr counters_idr;
489 	struct list_head counters;
490 	struct llist_head addlist;
491 	struct llist_head dellist;
492 
493 	struct workqueue_struct *wq;
494 	struct delayed_work work;
495 	unsigned long next_query;
496 	unsigned long sampling_interval; /* jiffies */
497 	u32 *bulk_query_out;
498 	int bulk_query_len;
499 	size_t num_counters;
500 	bool bulk_query_alloc_failed;
501 	unsigned long next_bulk_query_alloc;
502 	struct mlx5_fc_pool fc_pool;
503 };
504 
505 struct mlx5_events;
506 struct mlx5_mpfs;
507 struct mlx5_eswitch;
508 struct mlx5_lag;
509 struct mlx5_devcom_dev;
510 struct mlx5_fw_reset;
511 struct mlx5_eq_table;
512 struct mlx5_irq_table;
513 struct mlx5_vhca_state_notifier;
514 struct mlx5_sf_dev_table;
515 struct mlx5_sf_hw_table;
516 struct mlx5_sf_table;
517 struct mlx5_crypto_dek_priv;
518 
519 struct mlx5_rate_limit {
520 	u32			rate;
521 	u32			max_burst_sz;
522 	u16			typical_pkt_sz;
523 };
524 
525 struct mlx5_rl_entry {
526 	u8 rl_raw[MLX5_ST_SZ_BYTES(set_pp_rate_limit_context)];
527 	u64 refcount;
528 	u16 index;
529 	u16 uid;
530 	u8 dedicated : 1;
531 };
532 
533 struct mlx5_rl_table {
534 	/* protect rate limit table */
535 	struct mutex            rl_lock;
536 	u16                     max_size;
537 	u32                     max_rate;
538 	u32                     min_rate;
539 	struct mlx5_rl_entry   *rl_entry;
540 	u64 refcount;
541 };
542 
543 struct mlx5_core_roce {
544 	struct mlx5_flow_table *ft;
545 	struct mlx5_flow_group *fg;
546 	struct mlx5_flow_handle *allow_rule;
547 };
548 
549 enum {
550 	MLX5_PRIV_FLAGS_DISABLE_IB_ADEV = 1 << 0,
551 	MLX5_PRIV_FLAGS_DISABLE_ALL_ADEV = 1 << 1,
552 	/* Set during device detach to block any further devices
553 	 * creation/deletion on drivers rescan. Unset during device attach.
554 	 */
555 	MLX5_PRIV_FLAGS_DETACH = 1 << 2,
556 };
557 
558 struct mlx5_adev {
559 	struct auxiliary_device adev;
560 	struct mlx5_core_dev *mdev;
561 	int idx;
562 };
563 
564 struct mlx5_debugfs_entries {
565 	struct dentry *dbg_root;
566 	struct dentry *qp_debugfs;
567 	struct dentry *eq_debugfs;
568 	struct dentry *cq_debugfs;
569 	struct dentry *cmdif_debugfs;
570 	struct dentry *pages_debugfs;
571 	struct dentry *lag_debugfs;
572 };
573 
574 enum mlx5_func_type {
575 	MLX5_PF,
576 	MLX5_VF,
577 	MLX5_SF,
578 	MLX5_HOST_PF,
579 	MLX5_EC_VF,
580 	MLX5_FUNC_TYPE_NUM,
581 };
582 
583 struct mlx5_ft_pool;
584 struct mlx5_priv {
585 	/* IRQ table valid only for real pci devices PF or VF */
586 	struct mlx5_irq_table   *irq_table;
587 	struct mlx5_eq_table	*eq_table;
588 
589 	/* pages stuff */
590 	struct mlx5_nb          pg_nb;
591 	struct workqueue_struct *pg_wq;
592 	struct xarray           page_root_xa;
593 	atomic_t		reg_pages;
594 	struct list_head	free_list;
595 	u32			fw_pages;
596 	u32			page_counters[MLX5_FUNC_TYPE_NUM];
597 	u32			fw_pages_alloc_failed;
598 	u32			give_pages_dropped;
599 	u32			reclaim_pages_discard;
600 
601 	struct mlx5_core_health health;
602 	struct list_head	traps;
603 
604 	struct mlx5_debugfs_entries dbg;
605 
606 	/* start: alloc staff */
607 	/* protect buffer allocation according to numa node */
608 	struct mutex            alloc_mutex;
609 	int                     numa_node;
610 
611 	struct mutex            pgdir_mutex;
612 	struct list_head        pgdir_list;
613 	/* end: alloc staff */
614 
615 	struct mlx5_adev       **adev;
616 	int			adev_idx;
617 	int			sw_vhca_id;
618 	struct mlx5_events      *events;
619 	struct mlx5_vhca_events *vhca_events;
620 
621 	struct mlx5_flow_steering *steering;
622 	struct mlx5_mpfs        *mpfs;
623 	struct mlx5_eswitch     *eswitch;
624 	struct mlx5_core_sriov	sriov;
625 	struct mlx5_lag		*lag;
626 	u32			flags;
627 	struct mlx5_devcom_dev	*devc;
628 	struct mlx5_devcom_comp_dev *hca_devcom_comp;
629 	struct mlx5_fw_reset	*fw_reset;
630 	struct mlx5_core_roce	roce;
631 	struct mlx5_fc_stats		fc_stats;
632 	struct mlx5_rl_table            rl_table;
633 	struct mlx5_ft_pool		*ft_pool;
634 
635 	struct mlx5_bfreg_data		bfregs;
636 	struct mlx5_uars_page	       *uar;
637 #ifdef CONFIG_MLX5_SF
638 	struct mlx5_vhca_state_notifier *vhca_state_notifier;
639 	struct mlx5_sf_dev_table *sf_dev_table;
640 	struct mlx5_core_dev *parent_mdev;
641 #endif
642 #ifdef CONFIG_MLX5_SF_MANAGER
643 	struct mlx5_sf_hw_table *sf_hw_table;
644 	struct mlx5_sf_table *sf_table;
645 #endif
646 };
647 
648 enum mlx5_device_state {
649 	MLX5_DEVICE_STATE_UP = 1,
650 	MLX5_DEVICE_STATE_INTERNAL_ERROR,
651 };
652 
653 enum mlx5_interface_state {
654 	MLX5_INTERFACE_STATE_UP = BIT(0),
655 	MLX5_BREAK_FW_WAIT = BIT(1),
656 };
657 
658 enum mlx5_pci_status {
659 	MLX5_PCI_STATUS_DISABLED,
660 	MLX5_PCI_STATUS_ENABLED,
661 };
662 
663 enum mlx5_pagefault_type_flags {
664 	MLX5_PFAULT_REQUESTOR = 1 << 0,
665 	MLX5_PFAULT_WRITE     = 1 << 1,
666 	MLX5_PFAULT_RDMA      = 1 << 2,
667 };
668 
669 struct mlx5_td {
670 	/* protects tirs list changes while tirs refresh */
671 	struct mutex     list_lock;
672 	struct list_head tirs_list;
673 	u32              tdn;
674 };
675 
676 struct mlx5e_resources {
677 	struct mlx5e_hw_objs {
678 		u32                        pdn;
679 		struct mlx5_td             td;
680 		u32			   mkey;
681 		struct mlx5_sq_bfreg       bfreg;
682 #define MLX5_MAX_NUM_TC 8
683 		u32                        tisn[MLX5_MAX_PORTS][MLX5_MAX_NUM_TC];
684 		bool			   tisn_valid;
685 	} hw_objs;
686 	struct net_device *uplink_netdev;
687 	struct mutex uplink_netdev_lock;
688 	struct mlx5_crypto_dek_priv *dek_priv;
689 };
690 
691 enum mlx5_sw_icm_type {
692 	MLX5_SW_ICM_TYPE_STEERING,
693 	MLX5_SW_ICM_TYPE_HEADER_MODIFY,
694 	MLX5_SW_ICM_TYPE_HEADER_MODIFY_PATTERN,
695 	MLX5_SW_ICM_TYPE_SW_ENCAP,
696 };
697 
698 #define MLX5_MAX_RESERVED_GIDS 8
699 
700 struct mlx5_rsvd_gids {
701 	unsigned int start;
702 	unsigned int count;
703 	struct ida ida;
704 };
705 
706 #define MAX_PIN_NUM	8
707 struct mlx5_pps {
708 	u8                         pin_caps[MAX_PIN_NUM];
709 	struct work_struct         out_work;
710 	u64                        start[MAX_PIN_NUM];
711 	u8                         enabled;
712 	u64                        min_npps_period;
713 	u64                        min_out_pulse_duration_ns;
714 };
715 
716 struct mlx5_timer {
717 	struct cyclecounter        cycles;
718 	struct timecounter         tc;
719 	u32                        nominal_c_mult;
720 	unsigned long              overflow_period;
721 	struct delayed_work        overflow_work;
722 };
723 
724 struct mlx5_clock {
725 	struct mlx5_nb             pps_nb;
726 	seqlock_t                  lock;
727 	struct hwtstamp_config     hwtstamp_config;
728 	struct ptp_clock          *ptp;
729 	struct ptp_clock_info      ptp_info;
730 	struct mlx5_pps            pps_info;
731 	struct mlx5_timer          timer;
732 };
733 
734 struct mlx5_dm;
735 struct mlx5_fw_tracer;
736 struct mlx5_vxlan;
737 struct mlx5_geneve;
738 struct mlx5_hv_vhca;
739 
740 #define MLX5_LOG_SW_ICM_BLOCK_SIZE(dev) (MLX5_CAP_DEV_MEM(dev, log_sw_icm_alloc_granularity))
741 #define MLX5_SW_ICM_BLOCK_SIZE(dev) (1 << MLX5_LOG_SW_ICM_BLOCK_SIZE(dev))
742 
743 enum {
744 	MLX5_PROF_MASK_QP_SIZE		= (u64)1 << 0,
745 	MLX5_PROF_MASK_MR_CACHE		= (u64)1 << 1,
746 };
747 
748 enum {
749 	MKEY_CACHE_LAST_STD_ENTRY = 20,
750 	MLX5_IMR_KSM_CACHE_ENTRY,
751 	MAX_MKEY_CACHE_ENTRIES
752 };
753 
754 struct mlx5_profile {
755 	u64	mask;
756 	u8	log_max_qp;
757 	u8	num_cmd_caches;
758 	struct {
759 		int	size;
760 		int	limit;
761 	} mr_cache[MAX_MKEY_CACHE_ENTRIES];
762 };
763 
764 struct mlx5_hca_cap {
765 	u32 cur[MLX5_UN_SZ_DW(hca_cap_union)];
766 	u32 max[MLX5_UN_SZ_DW(hca_cap_union)];
767 };
768 
769 enum mlx5_wc_state {
770 	MLX5_WC_STATE_UNINITIALIZED,
771 	MLX5_WC_STATE_UNSUPPORTED,
772 	MLX5_WC_STATE_SUPPORTED,
773 };
774 
775 struct mlx5_core_dev {
776 	struct device *device;
777 	enum mlx5_coredev_type coredev_type;
778 	struct pci_dev	       *pdev;
779 	/* sync pci state */
780 	struct mutex		pci_status_mutex;
781 	enum mlx5_pci_status	pci_status;
782 	u8			rev_id;
783 	char			board_id[MLX5_BOARD_ID_LEN];
784 	struct mlx5_cmd		cmd;
785 	struct {
786 		struct mlx5_hca_cap *hca[MLX5_CAP_NUM];
787 		u32 pcam[MLX5_ST_SZ_DW(pcam_reg)];
788 		u32 mcam[MLX5_MCAM_REGS_NUM][MLX5_ST_SZ_DW(mcam_reg)];
789 		u32 fpga[MLX5_ST_SZ_DW(fpga_cap)];
790 		u32 qcam[MLX5_ST_SZ_DW(qcam_reg)];
791 		u8  embedded_cpu;
792 	} caps;
793 	struct mlx5_timeouts	*timeouts;
794 	u64			sys_image_guid;
795 	phys_addr_t		iseg_base;
796 	struct mlx5_init_seg __iomem *iseg;
797 	phys_addr_t             bar_addr;
798 	enum mlx5_device_state	state;
799 	/* sync interface state */
800 	struct mutex		intf_state_mutex;
801 	struct lock_class_key	lock_key;
802 	unsigned long		intf_state;
803 	struct mlx5_priv	priv;
804 	struct mlx5_profile	profile;
805 	u32			issi;
806 	struct mlx5e_resources  mlx5e_res;
807 	struct mlx5_dm          *dm;
808 	struct mlx5_vxlan       *vxlan;
809 	struct mlx5_geneve      *geneve;
810 	struct {
811 		struct mlx5_rsvd_gids	reserved_gids;
812 		u32			roce_en;
813 	} roce;
814 #ifdef CONFIG_MLX5_FPGA
815 	struct mlx5_fpga_device *fpga;
816 #endif
817 	struct mlx5_clock        clock;
818 	struct mlx5_ib_clock_info  *clock_info;
819 	struct mlx5_fw_tracer   *tracer;
820 	struct mlx5_rsc_dump    *rsc_dump;
821 	u32                      vsc_addr;
822 	struct mlx5_hv_vhca	*hv_vhca;
823 	struct mlx5_hwmon	*hwmon;
824 	u64			num_block_tc;
825 	u64			num_block_ipsec;
826 #ifdef CONFIG_MLX5_MACSEC
827 	struct mlx5_macsec_fs *macsec_fs;
828 	/* MACsec notifier chain to sync MACsec core and IB database */
829 	struct blocking_notifier_head macsec_nh;
830 #endif
831 	u64 num_ipsec_offloads;
832 	struct mlx5_sd          *sd;
833 	enum mlx5_wc_state wc_state;
834 	/* sync write combining state */
835 	struct mutex wc_state_lock;
836 };
837 
838 struct mlx5_db {
839 	__be32			*db;
840 	union {
841 		struct mlx5_db_pgdir		*pgdir;
842 		struct mlx5_ib_user_db_page	*user_page;
843 	}			u;
844 	dma_addr_t		dma;
845 	int			index;
846 };
847 
848 enum {
849 	MLX5_COMP_EQ_SIZE = 1024,
850 };
851 
852 enum {
853 	MLX5_PTYS_IB = 1 << 0,
854 	MLX5_PTYS_EN = 1 << 2,
855 };
856 
857 typedef void (*mlx5_cmd_cbk_t)(int status, void *context);
858 
859 enum {
860 	MLX5_CMD_ENT_STATE_PENDING_COMP,
861 };
862 
863 struct mlx5_cmd_work_ent {
864 	unsigned long		state;
865 	struct mlx5_cmd_msg    *in;
866 	struct mlx5_cmd_msg    *out;
867 	void		       *uout;
868 	int			uout_size;
869 	mlx5_cmd_cbk_t		callback;
870 	struct delayed_work	cb_timeout_work;
871 	void		       *context;
872 	int			idx;
873 	struct completion	handling;
874 	struct completion	slotted;
875 	struct completion	done;
876 	struct mlx5_cmd        *cmd;
877 	struct work_struct	work;
878 	struct mlx5_cmd_layout *lay;
879 	int			ret;
880 	int			page_queue;
881 	u8			status;
882 	u8			token;
883 	u64			ts1;
884 	u64			ts2;
885 	u16			op;
886 	bool			polling;
887 	/* Track the max comp handlers */
888 	refcount_t              refcnt;
889 };
890 
891 enum phy_port_state {
892 	MLX5_AAA_111
893 };
894 
895 struct mlx5_hca_vport_context {
896 	u32			field_select;
897 	bool			sm_virt_aware;
898 	bool			has_smi;
899 	bool			has_raw;
900 	enum port_state_policy	policy;
901 	enum phy_port_state	phys_state;
902 	enum ib_port_state	vport_state;
903 	u8			port_physical_state;
904 	u64			sys_image_guid;
905 	u64			port_guid;
906 	u64			node_guid;
907 	u32			cap_mask1;
908 	u32			cap_mask1_perm;
909 	u16			cap_mask2;
910 	u16			cap_mask2_perm;
911 	u16			lid;
912 	u8			init_type_reply; /* bitmask: see ib spec 14.2.5.6 InitTypeReply */
913 	u8			lmc;
914 	u8			subnet_timeout;
915 	u16			sm_lid;
916 	u8			sm_sl;
917 	u16			qkey_violation_counter;
918 	u16			pkey_violation_counter;
919 	bool			grh_required;
920 };
921 
922 #define STRUCT_FIELD(header, field) \
923 	.struct_offset_bytes = offsetof(struct ib_unpacked_ ## header, field),      \
924 	.struct_size_bytes   = sizeof((struct ib_unpacked_ ## header *)0)->field
925 
926 extern struct dentry *mlx5_debugfs_root;
927 
928 static inline u16 fw_rev_maj(struct mlx5_core_dev *dev)
929 {
930 	return ioread32be(&dev->iseg->fw_rev) & 0xffff;
931 }
932 
933 static inline u16 fw_rev_min(struct mlx5_core_dev *dev)
934 {
935 	return ioread32be(&dev->iseg->fw_rev) >> 16;
936 }
937 
938 static inline u16 fw_rev_sub(struct mlx5_core_dev *dev)
939 {
940 	return ioread32be(&dev->iseg->cmdif_rev_fw_sub) & 0xffff;
941 }
942 
943 static inline u32 mlx5_base_mkey(const u32 key)
944 {
945 	return key & 0xffffff00u;
946 }
947 
948 static inline u32 wq_get_byte_sz(u8 log_sz, u8 log_stride)
949 {
950 	return ((u32)1 << log_sz) << log_stride;
951 }
952 
953 static inline void mlx5_init_fbc_offset(struct mlx5_buf_list *frags,
954 					u8 log_stride, u8 log_sz,
955 					u16 strides_offset,
956 					struct mlx5_frag_buf_ctrl *fbc)
957 {
958 	fbc->frags      = frags;
959 	fbc->log_stride = log_stride;
960 	fbc->log_sz     = log_sz;
961 	fbc->sz_m1	= (1 << fbc->log_sz) - 1;
962 	fbc->log_frag_strides = PAGE_SHIFT - fbc->log_stride;
963 	fbc->frag_sz_m1	= (1 << fbc->log_frag_strides) - 1;
964 	fbc->strides_offset = strides_offset;
965 }
966 
967 static inline void mlx5_init_fbc(struct mlx5_buf_list *frags,
968 				 u8 log_stride, u8 log_sz,
969 				 struct mlx5_frag_buf_ctrl *fbc)
970 {
971 	mlx5_init_fbc_offset(frags, log_stride, log_sz, 0, fbc);
972 }
973 
974 static inline void *mlx5_frag_buf_get_wqe(struct mlx5_frag_buf_ctrl *fbc,
975 					  u32 ix)
976 {
977 	unsigned int frag;
978 
979 	ix  += fbc->strides_offset;
980 	frag = ix >> fbc->log_frag_strides;
981 
982 	return fbc->frags[frag].buf + ((fbc->frag_sz_m1 & ix) << fbc->log_stride);
983 }
984 
985 static inline u32
986 mlx5_frag_buf_get_idx_last_contig_stride(struct mlx5_frag_buf_ctrl *fbc, u32 ix)
987 {
988 	u32 last_frag_stride_idx = (ix + fbc->strides_offset) | fbc->frag_sz_m1;
989 
990 	return min_t(u32, last_frag_stride_idx - fbc->strides_offset, fbc->sz_m1);
991 }
992 
993 enum {
994 	CMD_ALLOWED_OPCODE_ALL,
995 };
996 
997 void mlx5_cmd_use_events(struct mlx5_core_dev *dev);
998 void mlx5_cmd_use_polling(struct mlx5_core_dev *dev);
999 void mlx5_cmd_allowed_opcode(struct mlx5_core_dev *dev, u16 opcode);
1000 
1001 struct mlx5_async_ctx {
1002 	struct mlx5_core_dev *dev;
1003 	atomic_t num_inflight;
1004 	struct completion inflight_done;
1005 };
1006 
1007 struct mlx5_async_work;
1008 
1009 typedef void (*mlx5_async_cbk_t)(int status, struct mlx5_async_work *context);
1010 
1011 struct mlx5_async_work {
1012 	struct mlx5_async_ctx *ctx;
1013 	mlx5_async_cbk_t user_callback;
1014 	u16 opcode; /* cmd opcode */
1015 	u16 op_mod; /* cmd op_mod */
1016 	void *out; /* pointer to the cmd output buffer */
1017 };
1018 
1019 void mlx5_cmd_init_async_ctx(struct mlx5_core_dev *dev,
1020 			     struct mlx5_async_ctx *ctx);
1021 void mlx5_cmd_cleanup_async_ctx(struct mlx5_async_ctx *ctx);
1022 int mlx5_cmd_exec_cb(struct mlx5_async_ctx *ctx, void *in, int in_size,
1023 		     void *out, int out_size, mlx5_async_cbk_t callback,
1024 		     struct mlx5_async_work *work);
1025 void mlx5_cmd_out_err(struct mlx5_core_dev *dev, u16 opcode, u16 op_mod, void *out);
1026 int mlx5_cmd_do(struct mlx5_core_dev *dev, void *in, int in_size, void *out, int out_size);
1027 int mlx5_cmd_check(struct mlx5_core_dev *dev, int err, void *in, void *out);
1028 int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out,
1029 		  int out_size);
1030 
1031 #define mlx5_cmd_exec_inout(dev, ifc_cmd, in, out)                             \
1032 	({                                                                     \
1033 		mlx5_cmd_exec(dev, in, MLX5_ST_SZ_BYTES(ifc_cmd##_in), out,    \
1034 			      MLX5_ST_SZ_BYTES(ifc_cmd##_out));                \
1035 	})
1036 
1037 #define mlx5_cmd_exec_in(dev, ifc_cmd, in)                                     \
1038 	({                                                                     \
1039 		u32 _out[MLX5_ST_SZ_DW(ifc_cmd##_out)] = {};                   \
1040 		mlx5_cmd_exec_inout(dev, ifc_cmd, in, _out);                   \
1041 	})
1042 
1043 int mlx5_cmd_exec_polling(struct mlx5_core_dev *dev, void *in, int in_size,
1044 			  void *out, int out_size);
1045 bool mlx5_cmd_is_down(struct mlx5_core_dev *dev);
1046 
1047 void mlx5_core_uplink_netdev_set(struct mlx5_core_dev *mdev, struct net_device *netdev);
1048 void mlx5_core_uplink_netdev_event_replay(struct mlx5_core_dev *mdev);
1049 
1050 void mlx5_core_mp_event_replay(struct mlx5_core_dev *dev, u32 event, void *data);
1051 
1052 void mlx5_health_cleanup(struct mlx5_core_dev *dev);
1053 int mlx5_health_init(struct mlx5_core_dev *dev);
1054 void mlx5_start_health_poll(struct mlx5_core_dev *dev);
1055 void mlx5_stop_health_poll(struct mlx5_core_dev *dev, bool disable_health);
1056 void mlx5_start_health_fw_log_up(struct mlx5_core_dev *dev);
1057 void mlx5_drain_health_wq(struct mlx5_core_dev *dev);
1058 void mlx5_trigger_health_work(struct mlx5_core_dev *dev);
1059 int mlx5_frag_buf_alloc_node(struct mlx5_core_dev *dev, int size,
1060 			     struct mlx5_frag_buf *buf, int node);
1061 void mlx5_frag_buf_free(struct mlx5_core_dev *dev, struct mlx5_frag_buf *buf);
1062 int mlx5_core_create_mkey(struct mlx5_core_dev *dev, u32 *mkey, u32 *in,
1063 			  int inlen);
1064 int mlx5_core_destroy_mkey(struct mlx5_core_dev *dev, u32 mkey);
1065 int mlx5_core_query_mkey(struct mlx5_core_dev *dev, u32 mkey, u32 *out,
1066 			 int outlen);
1067 int mlx5_core_alloc_pd(struct mlx5_core_dev *dev, u32 *pdn);
1068 int mlx5_core_dealloc_pd(struct mlx5_core_dev *dev, u32 pdn);
1069 int mlx5_pagealloc_init(struct mlx5_core_dev *dev);
1070 void mlx5_pagealloc_cleanup(struct mlx5_core_dev *dev);
1071 void mlx5_pagealloc_start(struct mlx5_core_dev *dev);
1072 void mlx5_pagealloc_stop(struct mlx5_core_dev *dev);
1073 void mlx5_pages_debugfs_init(struct mlx5_core_dev *dev);
1074 void mlx5_pages_debugfs_cleanup(struct mlx5_core_dev *dev);
1075 int mlx5_satisfy_startup_pages(struct mlx5_core_dev *dev, int boot);
1076 int mlx5_reclaim_startup_pages(struct mlx5_core_dev *dev);
1077 void mlx5_register_debugfs(void);
1078 void mlx5_unregister_debugfs(void);
1079 
1080 void mlx5_fill_page_frag_array_perm(struct mlx5_frag_buf *buf, __be64 *pas, u8 perm);
1081 void mlx5_fill_page_frag_array(struct mlx5_frag_buf *frag_buf, __be64 *pas);
1082 int mlx5_comp_eqn_get(struct mlx5_core_dev *dev, u16 vecidx, int *eqn);
1083 int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
1084 int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
1085 
1086 struct dentry *mlx5_debugfs_get_dev_root(struct mlx5_core_dev *dev);
1087 void mlx5_qp_debugfs_init(struct mlx5_core_dev *dev);
1088 void mlx5_qp_debugfs_cleanup(struct mlx5_core_dev *dev);
1089 int mlx5_access_reg(struct mlx5_core_dev *dev, void *data_in, int size_in,
1090 		    void *data_out, int size_out, u16 reg_id, int arg,
1091 		    int write, bool verbose);
1092 int mlx5_core_access_reg(struct mlx5_core_dev *dev, void *data_in,
1093 			 int size_in, void *data_out, int size_out,
1094 			 u16 reg_num, int arg, int write);
1095 
1096 int mlx5_db_alloc_node(struct mlx5_core_dev *dev, struct mlx5_db *db,
1097 		       int node);
1098 
1099 static inline int mlx5_db_alloc(struct mlx5_core_dev *dev, struct mlx5_db *db)
1100 {
1101 	return mlx5_db_alloc_node(dev, db, dev->priv.numa_node);
1102 }
1103 
1104 void mlx5_db_free(struct mlx5_core_dev *dev, struct mlx5_db *db);
1105 
1106 const char *mlx5_command_str(int command);
1107 void mlx5_cmdif_debugfs_init(struct mlx5_core_dev *dev);
1108 void mlx5_cmdif_debugfs_cleanup(struct mlx5_core_dev *dev);
1109 int mlx5_core_create_psv(struct mlx5_core_dev *dev, u32 pdn,
1110 			 int npsvs, u32 *sig_index);
1111 int mlx5_core_destroy_psv(struct mlx5_core_dev *dev, int psv_num);
1112 __be32 mlx5_core_get_terminate_scatter_list_mkey(struct mlx5_core_dev *dev);
1113 void mlx5_core_put_rsc(struct mlx5_core_rsc_common *common);
1114 
1115 int mlx5_init_rl_table(struct mlx5_core_dev *dev);
1116 void mlx5_cleanup_rl_table(struct mlx5_core_dev *dev);
1117 int mlx5_rl_add_rate(struct mlx5_core_dev *dev, u16 *index,
1118 		     struct mlx5_rate_limit *rl);
1119 void mlx5_rl_remove_rate(struct mlx5_core_dev *dev, struct mlx5_rate_limit *rl);
1120 bool mlx5_rl_is_in_range(struct mlx5_core_dev *dev, u32 rate);
1121 int mlx5_rl_add_rate_raw(struct mlx5_core_dev *dev, void *rl_in, u16 uid,
1122 			 bool dedicated_entry, u16 *index);
1123 void mlx5_rl_remove_rate_raw(struct mlx5_core_dev *dev, u16 index);
1124 bool mlx5_rl_are_equal(struct mlx5_rate_limit *rl_0,
1125 		       struct mlx5_rate_limit *rl_1);
1126 int mlx5_alloc_bfreg(struct mlx5_core_dev *mdev, struct mlx5_sq_bfreg *bfreg,
1127 		     bool map_wc, bool fast_path);
1128 void mlx5_free_bfreg(struct mlx5_core_dev *mdev, struct mlx5_sq_bfreg *bfreg);
1129 
1130 unsigned int mlx5_comp_vectors_max(struct mlx5_core_dev *dev);
1131 int mlx5_comp_vector_get_cpu(struct mlx5_core_dev *dev, int vector);
1132 unsigned int mlx5_core_reserved_gids_count(struct mlx5_core_dev *dev);
1133 int mlx5_core_roce_gid_set(struct mlx5_core_dev *dev, unsigned int index,
1134 			   u8 roce_version, u8 roce_l3_type, const u8 *gid,
1135 			   const u8 *mac, bool vlan, u16 vlan_id, u8 port_num);
1136 
1137 static inline u32 mlx5_mkey_to_idx(u32 mkey)
1138 {
1139 	return mkey >> 8;
1140 }
1141 
1142 static inline u32 mlx5_idx_to_mkey(u32 mkey_idx)
1143 {
1144 	return mkey_idx << 8;
1145 }
1146 
1147 static inline u8 mlx5_mkey_variant(u32 mkey)
1148 {
1149 	return mkey & 0xff;
1150 }
1151 
1152 /* Async-atomic event notifier used by mlx5 core to forward FW
1153  * evetns received from event queue to mlx5 consumers.
1154  * Optimise event queue dipatching.
1155  */
1156 int mlx5_notifier_register(struct mlx5_core_dev *dev, struct notifier_block *nb);
1157 int mlx5_notifier_unregister(struct mlx5_core_dev *dev, struct notifier_block *nb);
1158 
1159 /* Async-atomic event notifier used for forwarding
1160  * evetns from the event queue into the to mlx5 events dispatcher,
1161  * eswitch, clock and others.
1162  */
1163 int mlx5_eq_notifier_register(struct mlx5_core_dev *dev, struct mlx5_nb *nb);
1164 int mlx5_eq_notifier_unregister(struct mlx5_core_dev *dev, struct mlx5_nb *nb);
1165 
1166 /* Blocking event notifier used to forward SW events, used for slow path */
1167 int mlx5_blocking_notifier_register(struct mlx5_core_dev *dev, struct notifier_block *nb);
1168 int mlx5_blocking_notifier_unregister(struct mlx5_core_dev *dev, struct notifier_block *nb);
1169 int mlx5_blocking_notifier_call_chain(struct mlx5_core_dev *dev, unsigned int event,
1170 				      void *data);
1171 
1172 int mlx5_core_query_vendor_id(struct mlx5_core_dev *mdev, u32 *vendor_id);
1173 
1174 int mlx5_cmd_create_vport_lag(struct mlx5_core_dev *dev);
1175 int mlx5_cmd_destroy_vport_lag(struct mlx5_core_dev *dev);
1176 bool mlx5_lag_is_roce(struct mlx5_core_dev *dev);
1177 bool mlx5_lag_is_sriov(struct mlx5_core_dev *dev);
1178 bool mlx5_lag_is_active(struct mlx5_core_dev *dev);
1179 bool mlx5_lag_mode_is_hash(struct mlx5_core_dev *dev);
1180 bool mlx5_lag_is_master(struct mlx5_core_dev *dev);
1181 bool mlx5_lag_is_shared_fdb(struct mlx5_core_dev *dev);
1182 bool mlx5_lag_is_mpesw(struct mlx5_core_dev *dev);
1183 struct net_device *mlx5_lag_get_roce_netdev(struct mlx5_core_dev *dev);
1184 u8 mlx5_lag_get_slave_port(struct mlx5_core_dev *dev,
1185 			   struct net_device *slave);
1186 int mlx5_lag_query_cong_counters(struct mlx5_core_dev *dev,
1187 				 u64 *values,
1188 				 int num_counters,
1189 				 size_t *offsets);
1190 struct mlx5_core_dev *mlx5_lag_get_next_peer_mdev(struct mlx5_core_dev *dev, int *i);
1191 
1192 #define mlx5_lag_for_each_peer_mdev(dev, peer, i)				\
1193 	for (i = 0, peer = mlx5_lag_get_next_peer_mdev(dev, &i);		\
1194 	     peer;								\
1195 	     peer = mlx5_lag_get_next_peer_mdev(dev, &i))
1196 
1197 u8 mlx5_lag_get_num_ports(struct mlx5_core_dev *dev);
1198 struct mlx5_uars_page *mlx5_get_uars_page(struct mlx5_core_dev *mdev);
1199 void mlx5_put_uars_page(struct mlx5_core_dev *mdev, struct mlx5_uars_page *up);
1200 int mlx5_dm_sw_icm_alloc(struct mlx5_core_dev *dev, enum mlx5_sw_icm_type type,
1201 			 u64 length, u32 log_alignment, u16 uid,
1202 			 phys_addr_t *addr, u32 *obj_id);
1203 int mlx5_dm_sw_icm_dealloc(struct mlx5_core_dev *dev, enum mlx5_sw_icm_type type,
1204 			   u64 length, u16 uid, phys_addr_t addr, u32 obj_id);
1205 
1206 struct mlx5_core_dev *mlx5_vf_get_core_dev(struct pci_dev *pdev);
1207 void mlx5_vf_put_core_dev(struct mlx5_core_dev *mdev);
1208 
1209 int mlx5_sriov_blocking_notifier_register(struct mlx5_core_dev *mdev,
1210 					  int vf_id,
1211 					  struct notifier_block *nb);
1212 void mlx5_sriov_blocking_notifier_unregister(struct mlx5_core_dev *mdev,
1213 					     int vf_id,
1214 					     struct notifier_block *nb);
1215 int mlx5_rdma_rn_get_params(struct mlx5_core_dev *mdev,
1216 			    struct ib_device *device,
1217 			    struct rdma_netdev_alloc_params *params);
1218 
1219 enum {
1220 	MLX5_PCI_DEV_IS_VF		= 1 << 0,
1221 };
1222 
1223 static inline bool mlx5_core_is_pf(const struct mlx5_core_dev *dev)
1224 {
1225 	return dev->coredev_type == MLX5_COREDEV_PF;
1226 }
1227 
1228 static inline bool mlx5_core_is_vf(const struct mlx5_core_dev *dev)
1229 {
1230 	return dev->coredev_type == MLX5_COREDEV_VF;
1231 }
1232 
1233 static inline bool mlx5_core_is_ecpf(const struct mlx5_core_dev *dev)
1234 {
1235 	return dev->caps.embedded_cpu;
1236 }
1237 
1238 static inline bool
1239 mlx5_core_is_ecpf_esw_manager(const struct mlx5_core_dev *dev)
1240 {
1241 	return dev->caps.embedded_cpu && MLX5_CAP_GEN(dev, eswitch_manager);
1242 }
1243 
1244 static inline bool mlx5_ecpf_vport_exists(const struct mlx5_core_dev *dev)
1245 {
1246 	return mlx5_core_is_pf(dev) && MLX5_CAP_ESW(dev, ecpf_vport_exists);
1247 }
1248 
1249 static inline u16 mlx5_core_max_vfs(const struct mlx5_core_dev *dev)
1250 {
1251 	return dev->priv.sriov.max_vfs;
1252 }
1253 
1254 static inline int mlx5_lag_is_lacp_owner(struct mlx5_core_dev *dev)
1255 {
1256 	/* LACP owner conditions:
1257 	 * 1) Function is physical.
1258 	 * 2) LAG is supported by FW.
1259 	 * 3) LAG is managed by driver (currently the only option).
1260 	 */
1261 	return  MLX5_CAP_GEN(dev, vport_group_manager) &&
1262 		   (MLX5_CAP_GEN(dev, num_lag_ports) > 1) &&
1263 		    MLX5_CAP_GEN(dev, lag_master);
1264 }
1265 
1266 static inline u16 mlx5_core_max_ec_vfs(const struct mlx5_core_dev *dev)
1267 {
1268 	return dev->priv.sriov.max_ec_vfs;
1269 }
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 static inline int mlx5_get_dev_index(struct mlx5_core_dev *dev)
1312 {
1313 	int idx = MLX5_CAP_GEN(dev, native_port_num);
1314 
1315 	if (idx >= 1 && idx <= MLX5_MAX_PORTS)
1316 		return idx - 1;
1317 	else
1318 		return PCI_FUNC(dev->pdev->devfn);
1319 }
1320 
1321 enum {
1322 	MLX5_TRIGGERED_CMD_COMP = (u64)1 << 32,
1323 };
1324 
1325 bool mlx5_is_roce_on(struct mlx5_core_dev *dev);
1326 
1327 static inline bool mlx5_get_roce_state(struct mlx5_core_dev *dev)
1328 {
1329 	if (MLX5_CAP_GEN(dev, roce_rw_supported))
1330 		return MLX5_CAP_GEN(dev, roce);
1331 
1332 	/* If RoCE cap is read-only in FW, get RoCE state from devlink
1333 	 * in order to support RoCE enable/disable feature
1334 	 */
1335 	return mlx5_is_roce_on(dev);
1336 }
1337 
1338 #ifdef CONFIG_MLX5_MACSEC
1339 static inline bool mlx5e_is_macsec_device(const struct mlx5_core_dev *mdev)
1340 {
1341 	if (!(MLX5_CAP_GEN_64(mdev, general_obj_types) &
1342 	    MLX5_GENERAL_OBJ_TYPES_CAP_MACSEC_OFFLOAD))
1343 		return false;
1344 
1345 	if (!MLX5_CAP_GEN(mdev, log_max_dek))
1346 		return false;
1347 
1348 	if (!MLX5_CAP_MACSEC(mdev, log_max_macsec_offload))
1349 		return false;
1350 
1351 	if (!MLX5_CAP_FLOWTABLE_NIC_RX(mdev, macsec_decrypt) ||
1352 	    !MLX5_CAP_FLOWTABLE_NIC_RX(mdev, reformat_remove_macsec))
1353 		return false;
1354 
1355 	if (!MLX5_CAP_FLOWTABLE_NIC_TX(mdev, macsec_encrypt) ||
1356 	    !MLX5_CAP_FLOWTABLE_NIC_TX(mdev, reformat_add_macsec))
1357 		return false;
1358 
1359 	if (!MLX5_CAP_MACSEC(mdev, macsec_crypto_esp_aes_gcm_128_encrypt) &&
1360 	    !MLX5_CAP_MACSEC(mdev, macsec_crypto_esp_aes_gcm_256_encrypt))
1361 		return false;
1362 
1363 	if (!MLX5_CAP_MACSEC(mdev, macsec_crypto_esp_aes_gcm_128_decrypt) &&
1364 	    !MLX5_CAP_MACSEC(mdev, macsec_crypto_esp_aes_gcm_256_decrypt))
1365 		return false;
1366 
1367 	return true;
1368 }
1369 
1370 #define NIC_RDMA_BOTH_DIRS_CAPS (MLX5_FT_NIC_RX_2_NIC_RX_RDMA | MLX5_FT_NIC_TX_RDMA_2_NIC_TX)
1371 
1372 static inline bool mlx5_is_macsec_roce_supported(struct mlx5_core_dev *mdev)
1373 {
1374 	if (((MLX5_CAP_GEN_2(mdev, flow_table_type_2_type) &
1375 	     NIC_RDMA_BOTH_DIRS_CAPS) != NIC_RDMA_BOTH_DIRS_CAPS) ||
1376 	     !MLX5_CAP_FLOWTABLE_RDMA_TX(mdev, max_modify_header_actions) ||
1377 	     !mlx5e_is_macsec_device(mdev) || !mdev->macsec_fs)
1378 		return false;
1379 
1380 	return true;
1381 }
1382 #endif
1383 
1384 enum {
1385 	MLX5_OCTWORD = 16,
1386 };
1387 
1388 bool mlx5_wc_support_get(struct mlx5_core_dev *mdev);
1389 #endif /* MLX5_DRIVER_H */
1390