xref: /openbmc/linux/include/linux/mlx5/driver.h (revision 360823a09426347ea8f232b0b0b5156d0aed0302)
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	= 4,
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_MCQS		 = 0x9060,
154  	MLX5_REG_MCQI		 = 0x9061,
155  	MLX5_REG_MCC		 = 0x9062,
156  	MLX5_REG_MCDA		 = 0x9063,
157  	MLX5_REG_MCAM		 = 0x907f,
158  	MLX5_REG_MIRC		 = 0x9162,
159  	MLX5_REG_SBCAM		 = 0xB01F,
160  	MLX5_REG_RESOURCE_DUMP   = 0xC000,
161  	MLX5_REG_DTOR            = 0xC00E,
162  };
163  
164  enum mlx5_qpts_trust_state {
165  	MLX5_QPTS_TRUST_PCP  = 1,
166  	MLX5_QPTS_TRUST_DSCP = 2,
167  };
168  
169  enum mlx5_dcbx_oper_mode {
170  	MLX5E_DCBX_PARAM_VER_OPER_HOST  = 0x0,
171  	MLX5E_DCBX_PARAM_VER_OPER_AUTO  = 0x3,
172  };
173  
174  enum {
175  	MLX5_ATOMIC_OPS_CMP_SWAP	= 1 << 0,
176  	MLX5_ATOMIC_OPS_FETCH_ADD	= 1 << 1,
177  	MLX5_ATOMIC_OPS_EXTENDED_CMP_SWAP = 1 << 2,
178  	MLX5_ATOMIC_OPS_EXTENDED_FETCH_ADD = 1 << 3,
179  };
180  
181  enum mlx5_page_fault_resume_flags {
182  	MLX5_PAGE_FAULT_RESUME_REQUESTOR = 1 << 0,
183  	MLX5_PAGE_FAULT_RESUME_WRITE	 = 1 << 1,
184  	MLX5_PAGE_FAULT_RESUME_RDMA	 = 1 << 2,
185  	MLX5_PAGE_FAULT_RESUME_ERROR	 = 1 << 7,
186  };
187  
188  enum dbg_rsc_type {
189  	MLX5_DBG_RSC_QP,
190  	MLX5_DBG_RSC_EQ,
191  	MLX5_DBG_RSC_CQ,
192  };
193  
194  enum port_state_policy {
195  	MLX5_POLICY_DOWN	= 0,
196  	MLX5_POLICY_UP		= 1,
197  	MLX5_POLICY_FOLLOW	= 2,
198  	MLX5_POLICY_INVALID	= 0xffffffff
199  };
200  
201  enum mlx5_coredev_type {
202  	MLX5_COREDEV_PF,
203  	MLX5_COREDEV_VF,
204  	MLX5_COREDEV_SF,
205  };
206  
207  struct mlx5_field_desc {
208  	int			i;
209  };
210  
211  struct mlx5_rsc_debug {
212  	struct mlx5_core_dev   *dev;
213  	void		       *object;
214  	enum dbg_rsc_type	type;
215  	struct dentry	       *root;
216  	struct mlx5_field_desc	fields[];
217  };
218  
219  enum mlx5_dev_event {
220  	MLX5_DEV_EVENT_SYS_ERROR = 128, /* 0 - 127 are FW events */
221  	MLX5_DEV_EVENT_PORT_AFFINITY = 129,
222  	MLX5_DEV_EVENT_MULTIPORT_ESW = 130,
223  };
224  
225  enum mlx5_port_status {
226  	MLX5_PORT_UP        = 1,
227  	MLX5_PORT_DOWN      = 2,
228  };
229  
230  enum mlx5_cmdif_state {
231  	MLX5_CMDIF_STATE_UNINITIALIZED,
232  	MLX5_CMDIF_STATE_UP,
233  	MLX5_CMDIF_STATE_DOWN,
234  };
235  
236  struct mlx5_cmd_first {
237  	__be32		data[4];
238  };
239  
240  struct mlx5_cmd_msg {
241  	struct list_head		list;
242  	struct cmd_msg_cache	       *parent;
243  	u32				len;
244  	struct mlx5_cmd_first		first;
245  	struct mlx5_cmd_mailbox	       *next;
246  };
247  
248  struct mlx5_cmd_debug {
249  	struct dentry	       *dbg_root;
250  	void		       *in_msg;
251  	void		       *out_msg;
252  	u8			status;
253  	u16			inlen;
254  	u16			outlen;
255  };
256  
257  struct cmd_msg_cache {
258  	/* protect block chain allocations
259  	 */
260  	spinlock_t		lock;
261  	struct list_head	head;
262  	unsigned int		max_inbox_size;
263  	unsigned int		num_ent;
264  };
265  
266  enum {
267  	MLX5_NUM_COMMAND_CACHES = 5,
268  };
269  
270  struct mlx5_cmd_stats {
271  	u64		sum;
272  	u64		n;
273  	/* number of times command failed */
274  	u64		failed;
275  	/* number of times command failed on bad status returned by FW */
276  	u64		failed_mbox_status;
277  	/* last command failed returned errno */
278  	u32		last_failed_errno;
279  	/* last bad status returned by FW */
280  	u8		last_failed_mbox_status;
281  	/* last command failed syndrome returned by FW */
282  	u32		last_failed_syndrome;
283  	struct dentry  *root;
284  	/* protect command average calculations */
285  	spinlock_t	lock;
286  };
287  
288  struct mlx5_cmd {
289  	struct mlx5_nb    nb;
290  
291  	/* members which needs to be queried or reinitialized each reload */
292  	struct {
293  		u16		cmdif_rev;
294  		u8		log_sz;
295  		u8		log_stride;
296  		int		max_reg_cmds;
297  		unsigned long	bitmask;
298  		struct semaphore sem;
299  		struct semaphore pages_sem;
300  		struct semaphore throttle_sem;
301  	} vars;
302  	enum mlx5_cmdif_state	state;
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  
309  	/* protect command queue allocations
310  	 */
311  	spinlock_t	alloc_lock;
312  
313  	/* protect token allocations
314  	 */
315  	spinlock_t	token_lock;
316  	u8		token;
317  	char		wq_name[MLX5_CMD_WQ_MAX_NAME];
318  	struct workqueue_struct *wq;
319  	int	mode;
320  	u16     allowed_opcode;
321  	struct mlx5_cmd_work_ent *ent_arr[MLX5_MAX_COMMANDS];
322  	struct dma_pool *pool;
323  	struct mlx5_cmd_debug dbg;
324  	struct cmd_msg_cache cache[MLX5_NUM_COMMAND_CACHES];
325  	int checksum_disabled;
326  	struct xarray stats;
327  };
328  
329  struct mlx5_cmd_mailbox {
330  	void	       *buf;
331  	dma_addr_t	dma;
332  	struct mlx5_cmd_mailbox *next;
333  };
334  
335  struct mlx5_buf_list {
336  	void		       *buf;
337  	dma_addr_t		map;
338  };
339  
340  struct mlx5_frag_buf {
341  	struct mlx5_buf_list	*frags;
342  	int			npages;
343  	int			size;
344  	u8			page_shift;
345  };
346  
347  struct mlx5_frag_buf_ctrl {
348  	struct mlx5_buf_list   *frags;
349  	u32			sz_m1;
350  	u16			frag_sz_m1;
351  	u16			strides_offset;
352  	u8			log_sz;
353  	u8			log_stride;
354  	u8			log_frag_strides;
355  };
356  
357  struct mlx5_core_psv {
358  	u32	psv_idx;
359  	struct psv_layout {
360  		u32	pd;
361  		u16	syndrome;
362  		u16	reserved;
363  		u16	bg;
364  		u16	app_tag;
365  		u32	ref_tag;
366  	} psv;
367  };
368  
369  struct mlx5_core_sig_ctx {
370  	struct mlx5_core_psv	psv_memory;
371  	struct mlx5_core_psv	psv_wire;
372  	struct ib_sig_err       err_item;
373  	bool			sig_status_checked;
374  	bool			sig_err_exists;
375  	u32			sigerr_count;
376  };
377  
378  #define MLX5_24BIT_MASK		((1 << 24) - 1)
379  
380  enum mlx5_res_type {
381  	MLX5_RES_QP	= MLX5_EVENT_QUEUE_TYPE_QP,
382  	MLX5_RES_RQ	= MLX5_EVENT_QUEUE_TYPE_RQ,
383  	MLX5_RES_SQ	= MLX5_EVENT_QUEUE_TYPE_SQ,
384  	MLX5_RES_SRQ	= 3,
385  	MLX5_RES_XSRQ	= 4,
386  	MLX5_RES_XRQ	= 5,
387  };
388  
389  struct mlx5_core_rsc_common {
390  	enum mlx5_res_type	res;
391  	refcount_t		refcount;
392  	struct completion	free;
393  };
394  
395  struct mlx5_uars_page {
396  	void __iomem	       *map;
397  	bool			wc;
398  	u32			index;
399  	struct list_head	list;
400  	unsigned int		bfregs;
401  	unsigned long	       *reg_bitmap; /* for non fast path bf regs */
402  	unsigned long	       *fp_bitmap;
403  	unsigned int		reg_avail;
404  	unsigned int		fp_avail;
405  	struct kref		ref_count;
406  	struct mlx5_core_dev   *mdev;
407  };
408  
409  struct mlx5_bfreg_head {
410  	/* protect blue flame registers allocations */
411  	struct mutex		lock;
412  	struct list_head	list;
413  };
414  
415  struct mlx5_bfreg_data {
416  	struct mlx5_bfreg_head	reg_head;
417  	struct mlx5_bfreg_head	wc_head;
418  };
419  
420  struct mlx5_sq_bfreg {
421  	void __iomem	       *map;
422  	struct mlx5_uars_page  *up;
423  	bool			wc;
424  	u32			index;
425  	unsigned int		offset;
426  };
427  
428  struct mlx5_core_health {
429  	struct health_buffer __iomem   *health;
430  	__be32 __iomem		       *health_counter;
431  	struct timer_list		timer;
432  	u32				prev;
433  	int				miss_counter;
434  	u8				synd;
435  	u32				fatal_error;
436  	u32				crdump_size;
437  	struct workqueue_struct	       *wq;
438  	unsigned long			flags;
439  	struct work_struct		fatal_report_work;
440  	struct work_struct		report_work;
441  	struct devlink_health_reporter *fw_reporter;
442  	struct devlink_health_reporter *fw_fatal_reporter;
443  	struct devlink_health_reporter *vnic_reporter;
444  	struct delayed_work		update_fw_log_ts_work;
445  };
446  
447  enum {
448  	MLX5_PF_NOTIFY_DISABLE_VF,
449  	MLX5_PF_NOTIFY_ENABLE_VF,
450  };
451  
452  struct mlx5_vf_context {
453  	int	enabled;
454  	u64	port_guid;
455  	u64	node_guid;
456  	/* Valid bits are used to validate administrative guid only.
457  	 * Enabled after ndo_set_vf_guid
458  	 */
459  	u8	port_guid_valid:1;
460  	u8	node_guid_valid:1;
461  	enum port_state_policy	policy;
462  	struct blocking_notifier_head notifier;
463  };
464  
465  struct mlx5_core_sriov {
466  	struct mlx5_vf_context	*vfs_ctx;
467  	int			num_vfs;
468  	u16			max_vfs;
469  	u16			max_ec_vfs;
470  };
471  
472  struct mlx5_fc_pool {
473  	struct mlx5_core_dev *dev;
474  	struct mutex pool_lock; /* protects pool lists */
475  	struct list_head fully_used;
476  	struct list_head partially_used;
477  	struct list_head unused;
478  	int available_fcs;
479  	int used_fcs;
480  	int threshold;
481  };
482  
483  struct mlx5_fc_stats {
484  	spinlock_t counters_idr_lock; /* protects counters_idr */
485  	struct idr counters_idr;
486  	struct list_head counters;
487  	struct llist_head addlist;
488  	struct llist_head dellist;
489  
490  	struct workqueue_struct *wq;
491  	struct delayed_work work;
492  	unsigned long next_query;
493  	unsigned long sampling_interval; /* jiffies */
494  	u32 *bulk_query_out;
495  	int bulk_query_len;
496  	size_t num_counters;
497  	bool bulk_query_alloc_failed;
498  	unsigned long next_bulk_query_alloc;
499  	struct mlx5_fc_pool fc_pool;
500  };
501  
502  struct mlx5_events;
503  struct mlx5_mpfs;
504  struct mlx5_eswitch;
505  struct mlx5_lag;
506  struct mlx5_devcom_dev;
507  struct mlx5_fw_reset;
508  struct mlx5_eq_table;
509  struct mlx5_irq_table;
510  struct mlx5_vhca_state_notifier;
511  struct mlx5_sf_dev_table;
512  struct mlx5_sf_hw_table;
513  struct mlx5_sf_table;
514  struct mlx5_crypto_dek_priv;
515  
516  struct mlx5_rate_limit {
517  	u32			rate;
518  	u32			max_burst_sz;
519  	u16			typical_pkt_sz;
520  };
521  
522  struct mlx5_rl_entry {
523  	u8 rl_raw[MLX5_ST_SZ_BYTES(set_pp_rate_limit_context)];
524  	u64 refcount;
525  	u16 index;
526  	u16 uid;
527  	u8 dedicated : 1;
528  };
529  
530  struct mlx5_rl_table {
531  	/* protect rate limit table */
532  	struct mutex            rl_lock;
533  	u16                     max_size;
534  	u32                     max_rate;
535  	u32                     min_rate;
536  	struct mlx5_rl_entry   *rl_entry;
537  	u64 refcount;
538  };
539  
540  struct mlx5_core_roce {
541  	struct mlx5_flow_table *ft;
542  	struct mlx5_flow_group *fg;
543  	struct mlx5_flow_handle *allow_rule;
544  };
545  
546  enum {
547  	MLX5_PRIV_FLAGS_DISABLE_IB_ADEV = 1 << 0,
548  	MLX5_PRIV_FLAGS_DISABLE_ALL_ADEV = 1 << 1,
549  	/* Set during device detach to block any further devices
550  	 * creation/deletion on drivers rescan. Unset during device attach.
551  	 */
552  	MLX5_PRIV_FLAGS_DETACH = 1 << 2,
553  };
554  
555  struct mlx5_adev {
556  	struct auxiliary_device adev;
557  	struct mlx5_core_dev *mdev;
558  	int idx;
559  };
560  
561  struct mlx5_debugfs_entries {
562  	struct dentry *dbg_root;
563  	struct dentry *qp_debugfs;
564  	struct dentry *eq_debugfs;
565  	struct dentry *cq_debugfs;
566  	struct dentry *cmdif_debugfs;
567  	struct dentry *pages_debugfs;
568  	struct dentry *lag_debugfs;
569  };
570  
571  enum mlx5_func_type {
572  	MLX5_PF,
573  	MLX5_VF,
574  	MLX5_SF,
575  	MLX5_HOST_PF,
576  	MLX5_EC_VF,
577  	MLX5_FUNC_TYPE_NUM,
578  };
579  
580  struct mlx5_ft_pool;
581  struct mlx5_priv {
582  	/* IRQ table valid only for real pci devices PF or VF */
583  	struct mlx5_irq_table   *irq_table;
584  	struct mlx5_eq_table	*eq_table;
585  
586  	/* pages stuff */
587  	struct mlx5_nb          pg_nb;
588  	struct workqueue_struct *pg_wq;
589  	struct xarray           page_root_xa;
590  	atomic_t		reg_pages;
591  	struct list_head	free_list;
592  	u32			fw_pages;
593  	u32			page_counters[MLX5_FUNC_TYPE_NUM];
594  	u32			fw_pages_alloc_failed;
595  	u32			give_pages_dropped;
596  	u32			reclaim_pages_discard;
597  
598  	struct mlx5_core_health health;
599  	struct list_head	traps;
600  
601  	struct mlx5_debugfs_entries dbg;
602  
603  	/* start: alloc staff */
604  	/* protect buffer allocation according to numa node */
605  	struct mutex            alloc_mutex;
606  	int                     numa_node;
607  
608  	struct mutex            pgdir_mutex;
609  	struct list_head        pgdir_list;
610  	/* end: alloc staff */
611  
612  	struct mlx5_adev       **adev;
613  	int			adev_idx;
614  	int			sw_vhca_id;
615  	struct mlx5_events      *events;
616  
617  	struct mlx5_flow_steering *steering;
618  	struct mlx5_mpfs        *mpfs;
619  	struct mlx5_eswitch     *eswitch;
620  	struct mlx5_core_sriov	sriov;
621  	struct mlx5_lag		*lag;
622  	u32			flags;
623  	struct mlx5_devcom_dev	*devc;
624  	struct mlx5_fw_reset	*fw_reset;
625  	struct mlx5_core_roce	roce;
626  	struct mlx5_fc_stats		fc_stats;
627  	struct mlx5_rl_table            rl_table;
628  	struct mlx5_ft_pool		*ft_pool;
629  
630  	struct mlx5_bfreg_data		bfregs;
631  	struct mlx5_uars_page	       *uar;
632  #ifdef CONFIG_MLX5_SF
633  	struct mlx5_vhca_state_notifier *vhca_state_notifier;
634  	struct mlx5_sf_dev_table *sf_dev_table;
635  	struct mlx5_core_dev *parent_mdev;
636  #endif
637  #ifdef CONFIG_MLX5_SF_MANAGER
638  	struct mlx5_sf_hw_table *sf_hw_table;
639  	struct mlx5_sf_table *sf_table;
640  #endif
641  };
642  
643  enum mlx5_device_state {
644  	MLX5_DEVICE_STATE_UP = 1,
645  	MLX5_DEVICE_STATE_INTERNAL_ERROR,
646  };
647  
648  enum mlx5_interface_state {
649  	MLX5_INTERFACE_STATE_UP = BIT(0),
650  	MLX5_BREAK_FW_WAIT = BIT(1),
651  };
652  
653  enum mlx5_pci_status {
654  	MLX5_PCI_STATUS_DISABLED,
655  	MLX5_PCI_STATUS_ENABLED,
656  };
657  
658  enum mlx5_pagefault_type_flags {
659  	MLX5_PFAULT_REQUESTOR = 1 << 0,
660  	MLX5_PFAULT_WRITE     = 1 << 1,
661  	MLX5_PFAULT_RDMA      = 1 << 2,
662  };
663  
664  struct mlx5_td {
665  	/* protects tirs list changes while tirs refresh */
666  	struct mutex     list_lock;
667  	struct list_head tirs_list;
668  	u32              tdn;
669  };
670  
671  struct mlx5e_resources {
672  	struct mlx5e_hw_objs {
673  		u32                        pdn;
674  		struct mlx5_td             td;
675  		u32			   mkey;
676  		struct mlx5_sq_bfreg       bfreg;
677  	} hw_objs;
678  	struct net_device *uplink_netdev;
679  	struct mutex uplink_netdev_lock;
680  	struct mlx5_crypto_dek_priv *dek_priv;
681  };
682  
683  enum mlx5_sw_icm_type {
684  	MLX5_SW_ICM_TYPE_STEERING,
685  	MLX5_SW_ICM_TYPE_HEADER_MODIFY,
686  	MLX5_SW_ICM_TYPE_HEADER_MODIFY_PATTERN,
687  };
688  
689  #define MLX5_MAX_RESERVED_GIDS 8
690  
691  struct mlx5_rsvd_gids {
692  	unsigned int start;
693  	unsigned int count;
694  	struct ida ida;
695  };
696  
697  #define MAX_PIN_NUM	8
698  struct mlx5_pps {
699  	u8                         pin_caps[MAX_PIN_NUM];
700  	struct work_struct         out_work;
701  	u64                        start[MAX_PIN_NUM];
702  	u8                         enabled;
703  	u64                        min_npps_period;
704  	u64                        min_out_pulse_duration_ns;
705  };
706  
707  struct mlx5_timer {
708  	struct cyclecounter        cycles;
709  	struct timecounter         tc;
710  	u32                        nominal_c_mult;
711  	unsigned long              overflow_period;
712  };
713  
714  struct mlx5_clock {
715  	struct mlx5_nb             pps_nb;
716  	seqlock_t                  lock;
717  	struct hwtstamp_config     hwtstamp_config;
718  	struct ptp_clock          *ptp;
719  	struct ptp_clock_info      ptp_info;
720  	struct mlx5_pps            pps_info;
721  	struct mlx5_timer          timer;
722  };
723  
724  struct mlx5_dm;
725  struct mlx5_fw_tracer;
726  struct mlx5_vxlan;
727  struct mlx5_geneve;
728  struct mlx5_hv_vhca;
729  
730  #define MLX5_LOG_SW_ICM_BLOCK_SIZE(dev) (MLX5_CAP_DEV_MEM(dev, log_sw_icm_alloc_granularity))
731  #define MLX5_SW_ICM_BLOCK_SIZE(dev) (1 << MLX5_LOG_SW_ICM_BLOCK_SIZE(dev))
732  
733  enum {
734  	MLX5_PROF_MASK_QP_SIZE		= (u64)1 << 0,
735  	MLX5_PROF_MASK_MR_CACHE		= (u64)1 << 1,
736  };
737  
738  enum {
739  	MKEY_CACHE_LAST_STD_ENTRY = 20,
740  	MLX5_IMR_KSM_CACHE_ENTRY,
741  	MAX_MKEY_CACHE_ENTRIES
742  };
743  
744  struct mlx5_profile {
745  	u64	mask;
746  	u8	log_max_qp;
747  	u8	num_cmd_caches;
748  	struct {
749  		int	size;
750  		int	limit;
751  	} mr_cache[MAX_MKEY_CACHE_ENTRIES];
752  };
753  
754  struct mlx5_hca_cap {
755  	u32 cur[MLX5_UN_SZ_DW(hca_cap_union)];
756  	u32 max[MLX5_UN_SZ_DW(hca_cap_union)];
757  };
758  
759  struct mlx5_core_dev {
760  	struct device *device;
761  	enum mlx5_coredev_type coredev_type;
762  	struct pci_dev	       *pdev;
763  	/* sync pci state */
764  	struct mutex		pci_status_mutex;
765  	enum mlx5_pci_status	pci_status;
766  	u8			rev_id;
767  	char			board_id[MLX5_BOARD_ID_LEN];
768  	struct mlx5_cmd		cmd;
769  	struct {
770  		struct mlx5_hca_cap *hca[MLX5_CAP_NUM];
771  		u32 pcam[MLX5_ST_SZ_DW(pcam_reg)];
772  		u32 mcam[MLX5_MCAM_REGS_NUM][MLX5_ST_SZ_DW(mcam_reg)];
773  		u32 fpga[MLX5_ST_SZ_DW(fpga_cap)];
774  		u32 qcam[MLX5_ST_SZ_DW(qcam_reg)];
775  		u8  embedded_cpu;
776  	} caps;
777  	struct mlx5_timeouts	*timeouts;
778  	u64			sys_image_guid;
779  	phys_addr_t		iseg_base;
780  	struct mlx5_init_seg __iomem *iseg;
781  	phys_addr_t             bar_addr;
782  	enum mlx5_device_state	state;
783  	/* sync interface state */
784  	struct mutex		intf_state_mutex;
785  	struct lock_class_key	lock_key;
786  	unsigned long		intf_state;
787  	struct mlx5_priv	priv;
788  	struct mlx5_profile	profile;
789  	u32			issi;
790  	struct mlx5e_resources  mlx5e_res;
791  	struct mlx5_dm          *dm;
792  	struct mlx5_vxlan       *vxlan;
793  	struct mlx5_geneve      *geneve;
794  	struct {
795  		struct mlx5_rsvd_gids	reserved_gids;
796  		u32			roce_en;
797  	} roce;
798  #ifdef CONFIG_MLX5_FPGA
799  	struct mlx5_fpga_device *fpga;
800  #endif
801  	struct mlx5_clock        clock;
802  	struct mlx5_ib_clock_info  *clock_info;
803  	struct mlx5_fw_tracer   *tracer;
804  	struct mlx5_rsc_dump    *rsc_dump;
805  	u32                      vsc_addr;
806  	struct mlx5_hv_vhca	*hv_vhca;
807  	struct mlx5_hwmon	*hwmon;
808  	u64			num_block_tc;
809  	u64			num_block_ipsec;
810  #ifdef CONFIG_MLX5_MACSEC
811  	struct mlx5_macsec_fs *macsec_fs;
812  	/* MACsec notifier chain to sync MACsec core and IB database */
813  	struct blocking_notifier_head macsec_nh;
814  #endif
815  	u64 num_ipsec_offloads;
816  };
817  
818  struct mlx5_db {
819  	__be32			*db;
820  	union {
821  		struct mlx5_db_pgdir		*pgdir;
822  		struct mlx5_ib_user_db_page	*user_page;
823  	}			u;
824  	dma_addr_t		dma;
825  	int			index;
826  };
827  
828  enum {
829  	MLX5_COMP_EQ_SIZE = 1024,
830  };
831  
832  enum {
833  	MLX5_PTYS_IB = 1 << 0,
834  	MLX5_PTYS_EN = 1 << 2,
835  };
836  
837  typedef void (*mlx5_cmd_cbk_t)(int status, void *context);
838  
839  enum {
840  	MLX5_CMD_ENT_STATE_PENDING_COMP,
841  };
842  
843  struct mlx5_cmd_work_ent {
844  	unsigned long		state;
845  	struct mlx5_cmd_msg    *in;
846  	struct mlx5_cmd_msg    *out;
847  	void		       *uout;
848  	int			uout_size;
849  	mlx5_cmd_cbk_t		callback;
850  	struct delayed_work	cb_timeout_work;
851  	void		       *context;
852  	int			idx;
853  	struct completion	handling;
854  	struct completion	slotted;
855  	struct completion	done;
856  	struct mlx5_cmd        *cmd;
857  	struct work_struct	work;
858  	struct mlx5_cmd_layout *lay;
859  	int			ret;
860  	int			page_queue;
861  	u8			status;
862  	u8			token;
863  	u64			ts1;
864  	u64			ts2;
865  	u16			op;
866  	bool			polling;
867  	/* Track the max comp handlers */
868  	refcount_t              refcnt;
869  };
870  
871  enum phy_port_state {
872  	MLX5_AAA_111
873  };
874  
875  struct mlx5_hca_vport_context {
876  	u32			field_select;
877  	bool			sm_virt_aware;
878  	bool			has_smi;
879  	bool			has_raw;
880  	enum port_state_policy	policy;
881  	enum phy_port_state	phys_state;
882  	enum ib_port_state	vport_state;
883  	u8			port_physical_state;
884  	u64			sys_image_guid;
885  	u64			port_guid;
886  	u64			node_guid;
887  	u32			cap_mask1;
888  	u32			cap_mask1_perm;
889  	u16			cap_mask2;
890  	u16			cap_mask2_perm;
891  	u16			lid;
892  	u8			init_type_reply; /* bitmask: see ib spec 14.2.5.6 InitTypeReply */
893  	u8			lmc;
894  	u8			subnet_timeout;
895  	u16			sm_lid;
896  	u8			sm_sl;
897  	u16			qkey_violation_counter;
898  	u16			pkey_violation_counter;
899  	bool			grh_required;
900  };
901  
902  #define STRUCT_FIELD(header, field) \
903  	.struct_offset_bytes = offsetof(struct ib_unpacked_ ## header, field),      \
904  	.struct_size_bytes   = sizeof((struct ib_unpacked_ ## header *)0)->field
905  
906  extern struct dentry *mlx5_debugfs_root;
907  
fw_rev_maj(struct mlx5_core_dev * dev)908  static inline u16 fw_rev_maj(struct mlx5_core_dev *dev)
909  {
910  	return ioread32be(&dev->iseg->fw_rev) & 0xffff;
911  }
912  
fw_rev_min(struct mlx5_core_dev * dev)913  static inline u16 fw_rev_min(struct mlx5_core_dev *dev)
914  {
915  	return ioread32be(&dev->iseg->fw_rev) >> 16;
916  }
917  
fw_rev_sub(struct mlx5_core_dev * dev)918  static inline u16 fw_rev_sub(struct mlx5_core_dev *dev)
919  {
920  	return ioread32be(&dev->iseg->cmdif_rev_fw_sub) & 0xffff;
921  }
922  
mlx5_base_mkey(const u32 key)923  static inline u32 mlx5_base_mkey(const u32 key)
924  {
925  	return key & 0xffffff00u;
926  }
927  
wq_get_byte_sz(u8 log_sz,u8 log_stride)928  static inline u32 wq_get_byte_sz(u8 log_sz, u8 log_stride)
929  {
930  	return ((u32)1 << log_sz) << log_stride;
931  }
932  
mlx5_init_fbc_offset(struct mlx5_buf_list * frags,u8 log_stride,u8 log_sz,u16 strides_offset,struct mlx5_frag_buf_ctrl * fbc)933  static inline void mlx5_init_fbc_offset(struct mlx5_buf_list *frags,
934  					u8 log_stride, u8 log_sz,
935  					u16 strides_offset,
936  					struct mlx5_frag_buf_ctrl *fbc)
937  {
938  	fbc->frags      = frags;
939  	fbc->log_stride = log_stride;
940  	fbc->log_sz     = log_sz;
941  	fbc->sz_m1	= (1 << fbc->log_sz) - 1;
942  	fbc->log_frag_strides = PAGE_SHIFT - fbc->log_stride;
943  	fbc->frag_sz_m1	= (1 << fbc->log_frag_strides) - 1;
944  	fbc->strides_offset = strides_offset;
945  }
946  
mlx5_init_fbc(struct mlx5_buf_list * frags,u8 log_stride,u8 log_sz,struct mlx5_frag_buf_ctrl * fbc)947  static inline void mlx5_init_fbc(struct mlx5_buf_list *frags,
948  				 u8 log_stride, u8 log_sz,
949  				 struct mlx5_frag_buf_ctrl *fbc)
950  {
951  	mlx5_init_fbc_offset(frags, log_stride, log_sz, 0, fbc);
952  }
953  
mlx5_frag_buf_get_wqe(struct mlx5_frag_buf_ctrl * fbc,u32 ix)954  static inline void *mlx5_frag_buf_get_wqe(struct mlx5_frag_buf_ctrl *fbc,
955  					  u32 ix)
956  {
957  	unsigned int frag;
958  
959  	ix  += fbc->strides_offset;
960  	frag = ix >> fbc->log_frag_strides;
961  
962  	return fbc->frags[frag].buf + ((fbc->frag_sz_m1 & ix) << fbc->log_stride);
963  }
964  
965  static inline u32
mlx5_frag_buf_get_idx_last_contig_stride(struct mlx5_frag_buf_ctrl * fbc,u32 ix)966  mlx5_frag_buf_get_idx_last_contig_stride(struct mlx5_frag_buf_ctrl *fbc, u32 ix)
967  {
968  	u32 last_frag_stride_idx = (ix + fbc->strides_offset) | fbc->frag_sz_m1;
969  
970  	return min_t(u32, last_frag_stride_idx - fbc->strides_offset, fbc->sz_m1);
971  }
972  
973  enum {
974  	CMD_ALLOWED_OPCODE_ALL,
975  };
976  
977  void mlx5_cmd_use_events(struct mlx5_core_dev *dev);
978  void mlx5_cmd_use_polling(struct mlx5_core_dev *dev);
979  void mlx5_cmd_allowed_opcode(struct mlx5_core_dev *dev, u16 opcode);
980  
981  struct mlx5_async_ctx {
982  	struct mlx5_core_dev *dev;
983  	atomic_t num_inflight;
984  	struct completion inflight_done;
985  };
986  
987  struct mlx5_async_work;
988  
989  typedef void (*mlx5_async_cbk_t)(int status, struct mlx5_async_work *context);
990  
991  struct mlx5_async_work {
992  	struct mlx5_async_ctx *ctx;
993  	mlx5_async_cbk_t user_callback;
994  	u16 opcode; /* cmd opcode */
995  	u16 op_mod; /* cmd op_mod */
996  	void *out; /* pointer to the cmd output buffer */
997  };
998  
999  void mlx5_cmd_init_async_ctx(struct mlx5_core_dev *dev,
1000  			     struct mlx5_async_ctx *ctx);
1001  void mlx5_cmd_cleanup_async_ctx(struct mlx5_async_ctx *ctx);
1002  int mlx5_cmd_exec_cb(struct mlx5_async_ctx *ctx, void *in, int in_size,
1003  		     void *out, int out_size, mlx5_async_cbk_t callback,
1004  		     struct mlx5_async_work *work);
1005  void mlx5_cmd_out_err(struct mlx5_core_dev *dev, u16 opcode, u16 op_mod, void *out);
1006  int mlx5_cmd_do(struct mlx5_core_dev *dev, void *in, int in_size, void *out, int out_size);
1007  int mlx5_cmd_check(struct mlx5_core_dev *dev, int err, void *in, void *out);
1008  int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out,
1009  		  int out_size);
1010  
1011  #define mlx5_cmd_exec_inout(dev, ifc_cmd, in, out)                             \
1012  	({                                                                     \
1013  		mlx5_cmd_exec(dev, in, MLX5_ST_SZ_BYTES(ifc_cmd##_in), out,    \
1014  			      MLX5_ST_SZ_BYTES(ifc_cmd##_out));                \
1015  	})
1016  
1017  #define mlx5_cmd_exec_in(dev, ifc_cmd, in)                                     \
1018  	({                                                                     \
1019  		u32 _out[MLX5_ST_SZ_DW(ifc_cmd##_out)] = {};                   \
1020  		mlx5_cmd_exec_inout(dev, ifc_cmd, in, _out);                   \
1021  	})
1022  
1023  int mlx5_cmd_exec_polling(struct mlx5_core_dev *dev, void *in, int in_size,
1024  			  void *out, int out_size);
1025  bool mlx5_cmd_is_down(struct mlx5_core_dev *dev);
1026  
1027  void mlx5_core_uplink_netdev_set(struct mlx5_core_dev *mdev, struct net_device *netdev);
1028  void mlx5_core_uplink_netdev_event_replay(struct mlx5_core_dev *mdev);
1029  
1030  void mlx5_core_mp_event_replay(struct mlx5_core_dev *dev, u32 event, void *data);
1031  
1032  void mlx5_health_cleanup(struct mlx5_core_dev *dev);
1033  int mlx5_health_init(struct mlx5_core_dev *dev);
1034  void mlx5_start_health_poll(struct mlx5_core_dev *dev);
1035  void mlx5_stop_health_poll(struct mlx5_core_dev *dev, bool disable_health);
1036  void mlx5_start_health_fw_log_up(struct mlx5_core_dev *dev);
1037  void mlx5_drain_health_wq(struct mlx5_core_dev *dev);
1038  void mlx5_trigger_health_work(struct mlx5_core_dev *dev);
1039  int mlx5_frag_buf_alloc_node(struct mlx5_core_dev *dev, int size,
1040  			     struct mlx5_frag_buf *buf, int node);
1041  void mlx5_frag_buf_free(struct mlx5_core_dev *dev, struct mlx5_frag_buf *buf);
1042  struct mlx5_cmd_mailbox *mlx5_alloc_cmd_mailbox_chain(struct mlx5_core_dev *dev,
1043  						      gfp_t flags, int npages);
1044  void mlx5_free_cmd_mailbox_chain(struct mlx5_core_dev *dev,
1045  				 struct mlx5_cmd_mailbox *head);
1046  int mlx5_core_create_mkey(struct mlx5_core_dev *dev, u32 *mkey, u32 *in,
1047  			  int inlen);
1048  int mlx5_core_destroy_mkey(struct mlx5_core_dev *dev, u32 mkey);
1049  int mlx5_core_query_mkey(struct mlx5_core_dev *dev, u32 mkey, u32 *out,
1050  			 int outlen);
1051  int mlx5_core_alloc_pd(struct mlx5_core_dev *dev, u32 *pdn);
1052  int mlx5_core_dealloc_pd(struct mlx5_core_dev *dev, u32 pdn);
1053  int mlx5_pagealloc_init(struct mlx5_core_dev *dev);
1054  void mlx5_pagealloc_cleanup(struct mlx5_core_dev *dev);
1055  void mlx5_pagealloc_start(struct mlx5_core_dev *dev);
1056  void mlx5_pagealloc_stop(struct mlx5_core_dev *dev);
1057  void mlx5_pages_debugfs_init(struct mlx5_core_dev *dev);
1058  void mlx5_pages_debugfs_cleanup(struct mlx5_core_dev *dev);
1059  void mlx5_core_req_pages_handler(struct mlx5_core_dev *dev, u16 func_id,
1060  				 s32 npages, bool ec_function);
1061  int mlx5_satisfy_startup_pages(struct mlx5_core_dev *dev, int boot);
1062  int mlx5_reclaim_startup_pages(struct mlx5_core_dev *dev);
1063  void mlx5_register_debugfs(void);
1064  void mlx5_unregister_debugfs(void);
1065  
1066  void mlx5_fill_page_frag_array_perm(struct mlx5_frag_buf *buf, __be64 *pas, u8 perm);
1067  void mlx5_fill_page_frag_array(struct mlx5_frag_buf *frag_buf, __be64 *pas);
1068  int mlx5_comp_eqn_get(struct mlx5_core_dev *dev, u16 vecidx, int *eqn);
1069  int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
1070  int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
1071  
1072  struct dentry *mlx5_debugfs_get_dev_root(struct mlx5_core_dev *dev);
1073  void mlx5_qp_debugfs_init(struct mlx5_core_dev *dev);
1074  void mlx5_qp_debugfs_cleanup(struct mlx5_core_dev *dev);
1075  int mlx5_access_reg(struct mlx5_core_dev *dev, void *data_in, int size_in,
1076  		    void *data_out, int size_out, u16 reg_id, int arg,
1077  		    int write, bool verbose);
1078  int mlx5_core_access_reg(struct mlx5_core_dev *dev, void *data_in,
1079  			 int size_in, void *data_out, int size_out,
1080  			 u16 reg_num, int arg, int write);
1081  
1082  int mlx5_db_alloc_node(struct mlx5_core_dev *dev, struct mlx5_db *db,
1083  		       int node);
1084  
mlx5_db_alloc(struct mlx5_core_dev * dev,struct mlx5_db * db)1085  static inline int mlx5_db_alloc(struct mlx5_core_dev *dev, struct mlx5_db *db)
1086  {
1087  	return mlx5_db_alloc_node(dev, db, dev->priv.numa_node);
1088  }
1089  
1090  void mlx5_db_free(struct mlx5_core_dev *dev, struct mlx5_db *db);
1091  
1092  const char *mlx5_command_str(int command);
1093  void mlx5_cmdif_debugfs_init(struct mlx5_core_dev *dev);
1094  void mlx5_cmdif_debugfs_cleanup(struct mlx5_core_dev *dev);
1095  int mlx5_core_create_psv(struct mlx5_core_dev *dev, u32 pdn,
1096  			 int npsvs, u32 *sig_index);
1097  int mlx5_core_destroy_psv(struct mlx5_core_dev *dev, int psv_num);
1098  __be32 mlx5_core_get_terminate_scatter_list_mkey(struct mlx5_core_dev *dev);
1099  void mlx5_core_put_rsc(struct mlx5_core_rsc_common *common);
1100  int mlx5_query_odp_caps(struct mlx5_core_dev *dev,
1101  			struct mlx5_odp_caps *odp_caps);
1102  
1103  int mlx5_init_rl_table(struct mlx5_core_dev *dev);
1104  void mlx5_cleanup_rl_table(struct mlx5_core_dev *dev);
1105  int mlx5_rl_add_rate(struct mlx5_core_dev *dev, u16 *index,
1106  		     struct mlx5_rate_limit *rl);
1107  void mlx5_rl_remove_rate(struct mlx5_core_dev *dev, struct mlx5_rate_limit *rl);
1108  bool mlx5_rl_is_in_range(struct mlx5_core_dev *dev, u32 rate);
1109  int mlx5_rl_add_rate_raw(struct mlx5_core_dev *dev, void *rl_in, u16 uid,
1110  			 bool dedicated_entry, u16 *index);
1111  void mlx5_rl_remove_rate_raw(struct mlx5_core_dev *dev, u16 index);
1112  bool mlx5_rl_are_equal(struct mlx5_rate_limit *rl_0,
1113  		       struct mlx5_rate_limit *rl_1);
1114  int mlx5_alloc_bfreg(struct mlx5_core_dev *mdev, struct mlx5_sq_bfreg *bfreg,
1115  		     bool map_wc, bool fast_path);
1116  void mlx5_free_bfreg(struct mlx5_core_dev *mdev, struct mlx5_sq_bfreg *bfreg);
1117  
1118  unsigned int mlx5_comp_vectors_max(struct mlx5_core_dev *dev);
1119  int mlx5_comp_vector_get_cpu(struct mlx5_core_dev *dev, int vector);
1120  unsigned int mlx5_core_reserved_gids_count(struct mlx5_core_dev *dev);
1121  int mlx5_core_roce_gid_set(struct mlx5_core_dev *dev, unsigned int index,
1122  			   u8 roce_version, u8 roce_l3_type, const u8 *gid,
1123  			   const u8 *mac, bool vlan, u16 vlan_id, u8 port_num);
1124  
mlx5_mkey_to_idx(u32 mkey)1125  static inline u32 mlx5_mkey_to_idx(u32 mkey)
1126  {
1127  	return mkey >> 8;
1128  }
1129  
mlx5_idx_to_mkey(u32 mkey_idx)1130  static inline u32 mlx5_idx_to_mkey(u32 mkey_idx)
1131  {
1132  	return mkey_idx << 8;
1133  }
1134  
mlx5_mkey_variant(u32 mkey)1135  static inline u8 mlx5_mkey_variant(u32 mkey)
1136  {
1137  	return mkey & 0xff;
1138  }
1139  
1140  /* Async-atomic event notifier used by mlx5 core to forward FW
1141   * evetns received from event queue to mlx5 consumers.
1142   * Optimise event queue dipatching.
1143   */
1144  int mlx5_notifier_register(struct mlx5_core_dev *dev, struct notifier_block *nb);
1145  int mlx5_notifier_unregister(struct mlx5_core_dev *dev, struct notifier_block *nb);
1146  
1147  /* Async-atomic event notifier used for forwarding
1148   * evetns from the event queue into the to mlx5 events dispatcher,
1149   * eswitch, clock and others.
1150   */
1151  int mlx5_eq_notifier_register(struct mlx5_core_dev *dev, struct mlx5_nb *nb);
1152  int mlx5_eq_notifier_unregister(struct mlx5_core_dev *dev, struct mlx5_nb *nb);
1153  
1154  /* Blocking event notifier used to forward SW events, used for slow path */
1155  int mlx5_blocking_notifier_register(struct mlx5_core_dev *dev, struct notifier_block *nb);
1156  int mlx5_blocking_notifier_unregister(struct mlx5_core_dev *dev, struct notifier_block *nb);
1157  int mlx5_blocking_notifier_call_chain(struct mlx5_core_dev *dev, unsigned int event,
1158  				      void *data);
1159  
1160  int mlx5_core_query_vendor_id(struct mlx5_core_dev *mdev, u32 *vendor_id);
1161  
1162  int mlx5_cmd_create_vport_lag(struct mlx5_core_dev *dev);
1163  int mlx5_cmd_destroy_vport_lag(struct mlx5_core_dev *dev);
1164  bool mlx5_lag_is_roce(struct mlx5_core_dev *dev);
1165  bool mlx5_lag_is_sriov(struct mlx5_core_dev *dev);
1166  bool mlx5_lag_is_active(struct mlx5_core_dev *dev);
1167  bool mlx5_lag_mode_is_hash(struct mlx5_core_dev *dev);
1168  bool mlx5_lag_is_master(struct mlx5_core_dev *dev);
1169  bool mlx5_lag_is_shared_fdb(struct mlx5_core_dev *dev);
1170  bool mlx5_lag_is_mpesw(struct mlx5_core_dev *dev);
1171  struct net_device *mlx5_lag_get_roce_netdev(struct mlx5_core_dev *dev);
1172  u8 mlx5_lag_get_slave_port(struct mlx5_core_dev *dev,
1173  			   struct net_device *slave);
1174  int mlx5_lag_query_cong_counters(struct mlx5_core_dev *dev,
1175  				 u64 *values,
1176  				 int num_counters,
1177  				 size_t *offsets);
1178  struct mlx5_core_dev *mlx5_lag_get_next_peer_mdev(struct mlx5_core_dev *dev, int *i);
1179  
1180  #define mlx5_lag_for_each_peer_mdev(dev, peer, i)				\
1181  	for (i = 0, peer = mlx5_lag_get_next_peer_mdev(dev, &i);		\
1182  	     peer;								\
1183  	     peer = mlx5_lag_get_next_peer_mdev(dev, &i))
1184  
1185  u8 mlx5_lag_get_num_ports(struct mlx5_core_dev *dev);
1186  struct mlx5_uars_page *mlx5_get_uars_page(struct mlx5_core_dev *mdev);
1187  void mlx5_put_uars_page(struct mlx5_core_dev *mdev, struct mlx5_uars_page *up);
1188  int mlx5_dm_sw_icm_alloc(struct mlx5_core_dev *dev, enum mlx5_sw_icm_type type,
1189  			 u64 length, u32 log_alignment, u16 uid,
1190  			 phys_addr_t *addr, u32 *obj_id);
1191  int mlx5_dm_sw_icm_dealloc(struct mlx5_core_dev *dev, enum mlx5_sw_icm_type type,
1192  			   u64 length, u16 uid, phys_addr_t addr, u32 obj_id);
1193  
1194  struct mlx5_core_dev *mlx5_vf_get_core_dev(struct pci_dev *pdev);
1195  void mlx5_vf_put_core_dev(struct mlx5_core_dev *mdev);
1196  
1197  int mlx5_sriov_blocking_notifier_register(struct mlx5_core_dev *mdev,
1198  					  int vf_id,
1199  					  struct notifier_block *nb);
1200  void mlx5_sriov_blocking_notifier_unregister(struct mlx5_core_dev *mdev,
1201  					     int vf_id,
1202  					     struct notifier_block *nb);
1203  #ifdef CONFIG_MLX5_CORE_IPOIB
1204  struct net_device *mlx5_rdma_netdev_alloc(struct mlx5_core_dev *mdev,
1205  					  struct ib_device *ibdev,
1206  					  const char *name,
1207  					  void (*setup)(struct net_device *));
1208  #endif /* CONFIG_MLX5_CORE_IPOIB */
1209  int mlx5_rdma_rn_get_params(struct mlx5_core_dev *mdev,
1210  			    struct ib_device *device,
1211  			    struct rdma_netdev_alloc_params *params);
1212  
1213  enum {
1214  	MLX5_PCI_DEV_IS_VF		= 1 << 0,
1215  };
1216  
mlx5_core_is_pf(const struct mlx5_core_dev * dev)1217  static inline bool mlx5_core_is_pf(const struct mlx5_core_dev *dev)
1218  {
1219  	return dev->coredev_type == MLX5_COREDEV_PF;
1220  }
1221  
mlx5_core_is_vf(const struct mlx5_core_dev * dev)1222  static inline bool mlx5_core_is_vf(const struct mlx5_core_dev *dev)
1223  {
1224  	return dev->coredev_type == MLX5_COREDEV_VF;
1225  }
1226  
mlx5_core_same_coredev_type(const struct mlx5_core_dev * dev1,const struct mlx5_core_dev * dev2)1227  static inline bool mlx5_core_same_coredev_type(const struct mlx5_core_dev *dev1,
1228  					       const struct mlx5_core_dev *dev2)
1229  {
1230  	return dev1->coredev_type == dev2->coredev_type;
1231  }
1232  
mlx5_core_is_ecpf(const struct mlx5_core_dev * dev)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
mlx5_core_is_ecpf_esw_manager(const struct mlx5_core_dev * dev)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  
mlx5_ecpf_vport_exists(const struct mlx5_core_dev * dev)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  
mlx5_core_max_vfs(const struct mlx5_core_dev * dev)1249  static inline u16 mlx5_core_max_vfs(const struct mlx5_core_dev *dev)
1250  {
1251  	return dev->priv.sriov.max_vfs;
1252  }
1253  
mlx5_lag_is_lacp_owner(struct mlx5_core_dev * dev)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  
mlx5_core_max_ec_vfs(const struct mlx5_core_dev * dev)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  
mlx5_get_gid_table_len(u16 param)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  
mlx5_rl_is_supported(struct mlx5_core_dev * dev)1281  static inline bool mlx5_rl_is_supported(struct mlx5_core_dev *dev)
1282  {
1283  	return !!(dev->priv.rl_table.max_size);
1284  }
1285  
mlx5_core_is_mp_slave(struct mlx5_core_dev * dev)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  
mlx5_core_is_mp_master(struct mlx5_core_dev * dev)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  
mlx5_core_mp_enabled(struct mlx5_core_dev * dev)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  
mlx5_core_native_port_num(struct mlx5_core_dev * dev)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  
mlx5_get_dev_index(struct mlx5_core_dev * dev)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  
mlx5_get_roce_state(struct mlx5_core_dev * dev)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
mlx5e_is_macsec_device(const struct mlx5_core_dev * mdev)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  
mlx5_is_macsec_roce_supported(struct mlx5_core_dev * mdev)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  struct msi_map mlx5_msix_alloc(struct mlx5_core_dev *dev,
1389  			       irqreturn_t (*handler)(int, void *),
1390  			       const struct irq_affinity_desc *affdesc,
1391  			       const char *name);
1392  void mlx5_msix_free(struct mlx5_core_dev *dev, struct msi_map map);
1393  
1394  #endif /* MLX5_DRIVER_H */
1395