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
52 #include <linux/mlx5/device.h>
53 #include <linux/mlx5/doorbell.h>
54 #include <linux/mlx5/eq.h>
55 #include <linux/timecounter.h>
56 #include <linux/ptp_clock_kernel.h>
57 #include <net/devlink.h>
58
59 enum {
60 MLX5_BOARD_ID_LEN = 64,
61 };
62
63 enum {
64 /* one minute for the sake of bringup. Generally, commands must always
65 * complete and we may need to increase this timeout value
66 */
67 MLX5_CMD_TIMEOUT_MSEC = 60 * 1000,
68 MLX5_CMD_WQ_MAX_NAME = 32,
69 };
70
71 enum {
72 CMD_OWNER_SW = 0x0,
73 CMD_OWNER_HW = 0x1,
74 CMD_STATUS_SUCCESS = 0,
75 };
76
77 enum mlx5_sqp_t {
78 MLX5_SQP_SMI = 0,
79 MLX5_SQP_GSI = 1,
80 MLX5_SQP_IEEE_1588 = 2,
81 MLX5_SQP_SNIFFER = 3,
82 MLX5_SQP_SYNC_UMR = 4,
83 };
84
85 enum {
86 MLX5_MAX_PORTS = 2,
87 };
88
89 enum {
90 MLX5_ATOMIC_MODE_OFFSET = 16,
91 MLX5_ATOMIC_MODE_IB_COMP = 1,
92 MLX5_ATOMIC_MODE_CX = 2,
93 MLX5_ATOMIC_MODE_8B = 3,
94 MLX5_ATOMIC_MODE_16B = 4,
95 MLX5_ATOMIC_MODE_32B = 5,
96 MLX5_ATOMIC_MODE_64B = 6,
97 MLX5_ATOMIC_MODE_128B = 7,
98 MLX5_ATOMIC_MODE_256B = 8,
99 };
100
101 enum {
102 MLX5_REG_QPTS = 0x4002,
103 MLX5_REG_QETCR = 0x4005,
104 MLX5_REG_QTCT = 0x400a,
105 MLX5_REG_QPDPM = 0x4013,
106 MLX5_REG_QCAM = 0x4019,
107 MLX5_REG_DCBX_PARAM = 0x4020,
108 MLX5_REG_DCBX_APP = 0x4021,
109 MLX5_REG_FPGA_CAP = 0x4022,
110 MLX5_REG_FPGA_CTRL = 0x4023,
111 MLX5_REG_FPGA_ACCESS_REG = 0x4024,
112 MLX5_REG_CORE_DUMP = 0x402e,
113 MLX5_REG_PCAP = 0x5001,
114 MLX5_REG_PMTU = 0x5003,
115 MLX5_REG_PTYS = 0x5004,
116 MLX5_REG_PAOS = 0x5006,
117 MLX5_REG_PFCC = 0x5007,
118 MLX5_REG_PPCNT = 0x5008,
119 MLX5_REG_PPTB = 0x500b,
120 MLX5_REG_PBMC = 0x500c,
121 MLX5_REG_PMAOS = 0x5012,
122 MLX5_REG_PUDE = 0x5009,
123 MLX5_REG_PMPE = 0x5010,
124 MLX5_REG_PELC = 0x500e,
125 MLX5_REG_PVLC = 0x500f,
126 MLX5_REG_PCMR = 0x5041,
127 MLX5_REG_PMLP = 0x5002,
128 MLX5_REG_PPLM = 0x5023,
129 MLX5_REG_PCAM = 0x507f,
130 MLX5_REG_NODE_DESC = 0x6001,
131 MLX5_REG_HOST_ENDIANNESS = 0x7004,
132 MLX5_REG_MCIA = 0x9014,
133 MLX5_REG_MFRL = 0x9028,
134 MLX5_REG_MLCR = 0x902b,
135 MLX5_REG_MTRC_CAP = 0x9040,
136 MLX5_REG_MTRC_CONF = 0x9041,
137 MLX5_REG_MTRC_STDB = 0x9042,
138 MLX5_REG_MTRC_CTRL = 0x9043,
139 MLX5_REG_MPEIN = 0x9050,
140 MLX5_REG_MPCNT = 0x9051,
141 MLX5_REG_MTPPS = 0x9053,
142 MLX5_REG_MTPPSE = 0x9054,
143 MLX5_REG_MPEGC = 0x9056,
144 MLX5_REG_MCQS = 0x9060,
145 MLX5_REG_MCQI = 0x9061,
146 MLX5_REG_MCC = 0x9062,
147 MLX5_REG_MCDA = 0x9063,
148 MLX5_REG_MCAM = 0x907f,
149 MLX5_REG_MIRC = 0x9162,
150 MLX5_REG_SBCAM = 0xB01F,
151 MLX5_REG_RESOURCE_DUMP = 0xC000,
152 };
153
154 enum mlx5_qpts_trust_state {
155 MLX5_QPTS_TRUST_PCP = 1,
156 MLX5_QPTS_TRUST_DSCP = 2,
157 };
158
159 enum mlx5_dcbx_oper_mode {
160 MLX5E_DCBX_PARAM_VER_OPER_HOST = 0x0,
161 MLX5E_DCBX_PARAM_VER_OPER_AUTO = 0x3,
162 };
163
164 enum {
165 MLX5_ATOMIC_OPS_CMP_SWAP = 1 << 0,
166 MLX5_ATOMIC_OPS_FETCH_ADD = 1 << 1,
167 MLX5_ATOMIC_OPS_EXTENDED_CMP_SWAP = 1 << 2,
168 MLX5_ATOMIC_OPS_EXTENDED_FETCH_ADD = 1 << 3,
169 };
170
171 enum mlx5_page_fault_resume_flags {
172 MLX5_PAGE_FAULT_RESUME_REQUESTOR = 1 << 0,
173 MLX5_PAGE_FAULT_RESUME_WRITE = 1 << 1,
174 MLX5_PAGE_FAULT_RESUME_RDMA = 1 << 2,
175 MLX5_PAGE_FAULT_RESUME_ERROR = 1 << 7,
176 };
177
178 enum dbg_rsc_type {
179 MLX5_DBG_RSC_QP,
180 MLX5_DBG_RSC_EQ,
181 MLX5_DBG_RSC_CQ,
182 };
183
184 enum port_state_policy {
185 MLX5_POLICY_DOWN = 0,
186 MLX5_POLICY_UP = 1,
187 MLX5_POLICY_FOLLOW = 2,
188 MLX5_POLICY_INVALID = 0xffffffff
189 };
190
191 enum mlx5_coredev_type {
192 MLX5_COREDEV_PF,
193 MLX5_COREDEV_VF
194 };
195
196 struct mlx5_field_desc {
197 int i;
198 };
199
200 struct mlx5_rsc_debug {
201 struct mlx5_core_dev *dev;
202 void *object;
203 enum dbg_rsc_type type;
204 struct dentry *root;
205 struct mlx5_field_desc fields[];
206 };
207
208 enum mlx5_dev_event {
209 MLX5_DEV_EVENT_SYS_ERROR = 128, /* 0 - 127 are FW events */
210 MLX5_DEV_EVENT_PORT_AFFINITY = 129,
211 };
212
213 enum mlx5_port_status {
214 MLX5_PORT_UP = 1,
215 MLX5_PORT_DOWN = 2,
216 };
217
218 enum mlx5_cmdif_state {
219 MLX5_CMDIF_STATE_UNINITIALIZED,
220 MLX5_CMDIF_STATE_UP,
221 MLX5_CMDIF_STATE_DOWN,
222 };
223
224 struct mlx5_cmd_first {
225 __be32 data[4];
226 };
227
228 struct mlx5_cmd_msg {
229 struct list_head list;
230 struct cmd_msg_cache *parent;
231 u32 len;
232 struct mlx5_cmd_first first;
233 struct mlx5_cmd_mailbox *next;
234 };
235
236 struct mlx5_cmd_debug {
237 struct dentry *dbg_root;
238 void *in_msg;
239 void *out_msg;
240 u8 status;
241 u16 inlen;
242 u16 outlen;
243 };
244
245 struct cmd_msg_cache {
246 /* protect block chain allocations
247 */
248 spinlock_t lock;
249 struct list_head head;
250 unsigned int max_inbox_size;
251 unsigned int num_ent;
252 };
253
254 enum {
255 MLX5_NUM_COMMAND_CACHES = 5,
256 };
257
258 struct mlx5_cmd_stats {
259 u64 sum;
260 u64 n;
261 struct dentry *root;
262 /* protect command average calculations */
263 spinlock_t lock;
264 };
265
266 struct mlx5_cmd {
267 struct mlx5_nb nb;
268
269 enum mlx5_cmdif_state state;
270 void *cmd_alloc_buf;
271 dma_addr_t alloc_dma;
272 int alloc_size;
273 void *cmd_buf;
274 dma_addr_t dma;
275 u16 cmdif_rev;
276 u8 log_sz;
277 u8 log_stride;
278 int max_reg_cmds;
279 int events;
280 u32 __iomem *vector;
281
282 /* protect command queue allocations
283 */
284 spinlock_t alloc_lock;
285
286 /* protect token allocations
287 */
288 spinlock_t token_lock;
289 u8 token;
290 unsigned long bitmask;
291 char wq_name[MLX5_CMD_WQ_MAX_NAME];
292 struct workqueue_struct *wq;
293 struct semaphore sem;
294 struct semaphore pages_sem;
295 int mode;
296 u16 allowed_opcode;
297 struct mlx5_cmd_work_ent *ent_arr[MLX5_MAX_COMMANDS];
298 struct dma_pool *pool;
299 struct mlx5_cmd_debug dbg;
300 struct cmd_msg_cache cache[MLX5_NUM_COMMAND_CACHES];
301 int checksum_disabled;
302 struct mlx5_cmd_stats *stats;
303 };
304
305 struct mlx5_port_caps {
306 int gid_table_len;
307 int pkey_table_len;
308 u8 ext_port_cap;
309 bool has_smi;
310 };
311
312 struct mlx5_cmd_mailbox {
313 void *buf;
314 dma_addr_t dma;
315 struct mlx5_cmd_mailbox *next;
316 };
317
318 struct mlx5_buf_list {
319 void *buf;
320 dma_addr_t map;
321 };
322
323 struct mlx5_frag_buf {
324 struct mlx5_buf_list *frags;
325 int npages;
326 int size;
327 u8 page_shift;
328 };
329
330 struct mlx5_frag_buf_ctrl {
331 struct mlx5_buf_list *frags;
332 u32 sz_m1;
333 u16 frag_sz_m1;
334 u16 strides_offset;
335 u8 log_sz;
336 u8 log_stride;
337 u8 log_frag_strides;
338 };
339
340 struct mlx5_core_psv {
341 u32 psv_idx;
342 struct psv_layout {
343 u32 pd;
344 u16 syndrome;
345 u16 reserved;
346 u16 bg;
347 u16 app_tag;
348 u32 ref_tag;
349 } psv;
350 };
351
352 struct mlx5_core_sig_ctx {
353 struct mlx5_core_psv psv_memory;
354 struct mlx5_core_psv psv_wire;
355 struct ib_sig_err err_item;
356 bool sig_status_checked;
357 bool sig_err_exists;
358 u32 sigerr_count;
359 };
360
361 enum {
362 MLX5_MKEY_MR = 1,
363 MLX5_MKEY_MW,
364 MLX5_MKEY_INDIRECT_DEVX,
365 };
366
367 struct mlx5_core_mkey {
368 u64 iova;
369 u64 size;
370 u32 key;
371 u32 pd;
372 u32 type;
373 };
374
375 #define MLX5_24BIT_MASK ((1 << 24) - 1)
376
377 enum mlx5_res_type {
378 MLX5_RES_QP = MLX5_EVENT_QUEUE_TYPE_QP,
379 MLX5_RES_RQ = MLX5_EVENT_QUEUE_TYPE_RQ,
380 MLX5_RES_SQ = MLX5_EVENT_QUEUE_TYPE_SQ,
381 MLX5_RES_SRQ = 3,
382 MLX5_RES_XSRQ = 4,
383 MLX5_RES_XRQ = 5,
384 MLX5_RES_DCT = MLX5_EVENT_QUEUE_TYPE_DCT,
385 };
386
387 struct mlx5_core_rsc_common {
388 enum mlx5_res_type res;
389 refcount_t refcount;
390 struct completion free;
391 };
392
393 struct mlx5_uars_page {
394 void __iomem *map;
395 bool wc;
396 u32 index;
397 struct list_head list;
398 unsigned int bfregs;
399 unsigned long *reg_bitmap; /* for non fast path bf regs */
400 unsigned long *fp_bitmap;
401 unsigned int reg_avail;
402 unsigned int fp_avail;
403 struct kref ref_count;
404 struct mlx5_core_dev *mdev;
405 };
406
407 struct mlx5_bfreg_head {
408 /* protect blue flame registers allocations */
409 struct mutex lock;
410 struct list_head list;
411 };
412
413 struct mlx5_bfreg_data {
414 struct mlx5_bfreg_head reg_head;
415 struct mlx5_bfreg_head wc_head;
416 };
417
418 struct mlx5_sq_bfreg {
419 void __iomem *map;
420 struct mlx5_uars_page *up;
421 bool wc;
422 u32 index;
423 unsigned int offset;
424 };
425
426 struct mlx5_core_health {
427 struct health_buffer __iomem *health;
428 __be32 __iomem *health_counter;
429 struct timer_list timer;
430 u32 prev;
431 int miss_counter;
432 u8 synd;
433 u32 fatal_error;
434 u32 crdump_size;
435 /* wq spinlock to synchronize draining */
436 spinlock_t wq_lock;
437 struct workqueue_struct *wq;
438 unsigned long flags;
439 struct work_struct fatal_report_work;
440 struct work_struct report_work;
441 struct delayed_work recover_work;
442 struct devlink_health_reporter *fw_reporter;
443 struct devlink_health_reporter *fw_fatal_reporter;
444 };
445
446 struct mlx5_qp_table {
447 struct notifier_block nb;
448
449 /* protect radix tree
450 */
451 spinlock_t lock;
452 struct radix_tree_root tree;
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 };
466
467 struct mlx5_core_sriov {
468 struct mlx5_vf_context *vfs_ctx;
469 int num_vfs;
470 u16 max_vfs;
471 };
472
473 struct mlx5_fc_pool {
474 struct mlx5_core_dev *dev;
475 struct mutex pool_lock; /* protects pool lists */
476 struct list_head fully_used;
477 struct list_head partially_used;
478 struct list_head unused;
479 int available_fcs;
480 int used_fcs;
481 int threshold;
482 };
483
484 struct mlx5_fc_stats {
485 spinlock_t counters_idr_lock; /* protects counters_idr */
486 struct idr counters_idr;
487 struct list_head counters;
488 struct llist_head addlist;
489 struct llist_head dellist;
490
491 struct workqueue_struct *wq;
492 struct delayed_work work;
493 unsigned long next_query;
494 unsigned long sampling_interval; /* jiffies */
495 u32 *bulk_query_out;
496 struct mlx5_fc_pool fc_pool;
497 };
498
499 struct mlx5_events;
500 struct mlx5_mpfs;
501 struct mlx5_eswitch;
502 struct mlx5_lag;
503 struct mlx5_devcom;
504 struct mlx5_fw_reset;
505 struct mlx5_eq_table;
506 struct mlx5_irq_table;
507
508 struct mlx5_rate_limit {
509 u32 rate;
510 u32 max_burst_sz;
511 u16 typical_pkt_sz;
512 };
513
514 struct mlx5_rl_entry {
515 u8 rl_raw[MLX5_ST_SZ_BYTES(set_pp_rate_limit_context)];
516 u16 index;
517 u64 refcount;
518 u16 uid;
519 u8 dedicated : 1;
520 };
521
522 struct mlx5_rl_table {
523 /* protect rate limit table */
524 struct mutex rl_lock;
525 u16 max_size;
526 u32 max_rate;
527 u32 min_rate;
528 struct mlx5_rl_entry *rl_entry;
529 };
530
531 struct mlx5_core_roce {
532 struct mlx5_flow_table *ft;
533 struct mlx5_flow_group *fg;
534 struct mlx5_flow_handle *allow_rule;
535 };
536
537 struct mlx5_priv {
538 /* IRQ table valid only for real pci devices PF or VF */
539 struct mlx5_irq_table *irq_table;
540 struct mlx5_eq_table *eq_table;
541
542 /* pages stuff */
543 struct mlx5_nb pg_nb;
544 struct workqueue_struct *pg_wq;
545 struct xarray page_root_xa;
546 int fw_pages;
547 atomic_t reg_pages;
548 struct list_head free_list;
549 int vfs_pages;
550 int peer_pf_pages;
551
552 struct mlx5_core_health health;
553
554 /* start: qp staff */
555 struct dentry *qp_debugfs;
556 struct dentry *eq_debugfs;
557 struct dentry *cq_debugfs;
558 struct dentry *cmdif_debugfs;
559 /* end: qp staff */
560
561 /* start: alloc staff */
562 /* protect buffer alocation according to numa node */
563 struct mutex alloc_mutex;
564 int numa_node;
565
566 struct mutex pgdir_mutex;
567 struct list_head pgdir_list;
568 /* end: alloc staff */
569 struct dentry *dbg_root;
570
571 struct list_head dev_list;
572 struct list_head ctx_list;
573 spinlock_t ctx_lock;
574 struct mlx5_events *events;
575
576 struct mlx5_flow_steering *steering;
577 struct mlx5_mpfs *mpfs;
578 struct mlx5_eswitch *eswitch;
579 struct mlx5_core_sriov sriov;
580 struct mlx5_lag *lag;
581 struct mlx5_devcom *devcom;
582 struct mlx5_fw_reset *fw_reset;
583 struct mlx5_core_roce roce;
584 struct mlx5_fc_stats fc_stats;
585 struct mlx5_rl_table rl_table;
586
587 struct mlx5_bfreg_data bfregs;
588 struct mlx5_uars_page *uar;
589 };
590
591 enum mlx5_device_state {
592 MLX5_DEVICE_STATE_UNINITIALIZED,
593 MLX5_DEVICE_STATE_UP,
594 MLX5_DEVICE_STATE_INTERNAL_ERROR,
595 };
596
597 enum mlx5_interface_state {
598 MLX5_INTERFACE_STATE_UP = BIT(0),
599 };
600
601 enum mlx5_pci_status {
602 MLX5_PCI_STATUS_DISABLED,
603 MLX5_PCI_STATUS_ENABLED,
604 };
605
606 enum mlx5_pagefault_type_flags {
607 MLX5_PFAULT_REQUESTOR = 1 << 0,
608 MLX5_PFAULT_WRITE = 1 << 1,
609 MLX5_PFAULT_RDMA = 1 << 2,
610 };
611
612 struct mlx5_td {
613 /* protects tirs list changes while tirs refresh */
614 struct mutex list_lock;
615 struct list_head tirs_list;
616 u32 tdn;
617 };
618
619 struct mlx5e_resources {
620 u32 pdn;
621 struct mlx5_td td;
622 struct mlx5_core_mkey mkey;
623 struct mlx5_sq_bfreg bfreg;
624 };
625
626 enum mlx5_sw_icm_type {
627 MLX5_SW_ICM_TYPE_STEERING,
628 MLX5_SW_ICM_TYPE_HEADER_MODIFY,
629 };
630
631 #define MLX5_MAX_RESERVED_GIDS 8
632
633 struct mlx5_rsvd_gids {
634 unsigned int start;
635 unsigned int count;
636 struct ida ida;
637 };
638
639 #define MAX_PIN_NUM 8
640 struct mlx5_pps {
641 u8 pin_caps[MAX_PIN_NUM];
642 struct work_struct out_work;
643 u64 start[MAX_PIN_NUM];
644 u8 enabled;
645 };
646
647 struct mlx5_clock {
648 struct mlx5_nb pps_nb;
649 seqlock_t lock;
650 struct cyclecounter cycles;
651 struct timecounter tc;
652 struct hwtstamp_config hwtstamp_config;
653 u32 nominal_c_mult;
654 unsigned long overflow_period;
655 struct delayed_work overflow_work;
656 struct ptp_clock *ptp;
657 struct ptp_clock_info ptp_info;
658 struct mlx5_pps pps_info;
659 };
660
661 struct mlx5_dm;
662 struct mlx5_fw_tracer;
663 struct mlx5_vxlan;
664 struct mlx5_geneve;
665 struct mlx5_hv_vhca;
666
667 #define MLX5_LOG_SW_ICM_BLOCK_SIZE(dev) (MLX5_CAP_DEV_MEM(dev, log_sw_icm_alloc_granularity))
668 #define MLX5_SW_ICM_BLOCK_SIZE(dev) (1 << MLX5_LOG_SW_ICM_BLOCK_SIZE(dev))
669
670 struct mlx5_core_dev {
671 struct device *device;
672 enum mlx5_coredev_type coredev_type;
673 struct pci_dev *pdev;
674 /* sync pci state */
675 struct mutex pci_status_mutex;
676 enum mlx5_pci_status pci_status;
677 u8 rev_id;
678 char board_id[MLX5_BOARD_ID_LEN];
679 struct mlx5_cmd cmd;
680 struct mlx5_port_caps port_caps[MLX5_MAX_PORTS];
681 struct {
682 u32 hca_cur[MLX5_CAP_NUM][MLX5_UN_SZ_DW(hca_cap_union)];
683 u32 hca_max[MLX5_CAP_NUM][MLX5_UN_SZ_DW(hca_cap_union)];
684 u32 pcam[MLX5_ST_SZ_DW(pcam_reg)];
685 u32 mcam[MLX5_MCAM_REGS_NUM][MLX5_ST_SZ_DW(mcam_reg)];
686 u32 fpga[MLX5_ST_SZ_DW(fpga_cap)];
687 u32 qcam[MLX5_ST_SZ_DW(qcam_reg)];
688 u8 embedded_cpu;
689 } caps;
690 u64 sys_image_guid;
691 phys_addr_t iseg_base;
692 struct mlx5_init_seg __iomem *iseg;
693 phys_addr_t bar_addr;
694 enum mlx5_device_state state;
695 /* sync interface state */
696 struct mutex intf_state_mutex;
697 unsigned long intf_state;
698 struct mlx5_priv priv;
699 struct mlx5_profile *profile;
700 u32 issi;
701 struct mlx5e_resources mlx5e_res;
702 struct mlx5_dm *dm;
703 struct mlx5_vxlan *vxlan;
704 struct mlx5_geneve *geneve;
705 struct {
706 struct mlx5_rsvd_gids reserved_gids;
707 u32 roce_en;
708 } roce;
709 #ifdef CONFIG_MLX5_FPGA
710 struct mlx5_fpga_device *fpga;
711 #endif
712 #ifdef CONFIG_MLX5_ACCEL
713 const struct mlx5_accel_ipsec_ops *ipsec_ops;
714 #endif
715 struct mlx5_clock clock;
716 struct mlx5_ib_clock_info *clock_info;
717 struct mlx5_fw_tracer *tracer;
718 struct mlx5_rsc_dump *rsc_dump;
719 u32 vsc_addr;
720 struct mlx5_hv_vhca *hv_vhca;
721 };
722
723 struct mlx5_db {
724 __be32 *db;
725 union {
726 struct mlx5_db_pgdir *pgdir;
727 struct mlx5_ib_user_db_page *user_page;
728 } u;
729 dma_addr_t dma;
730 int index;
731 };
732
733 enum {
734 MLX5_COMP_EQ_SIZE = 1024,
735 };
736
737 enum {
738 MLX5_PTYS_IB = 1 << 0,
739 MLX5_PTYS_EN = 1 << 2,
740 };
741
742 typedef void (*mlx5_cmd_cbk_t)(int status, void *context);
743
744 enum {
745 MLX5_CMD_ENT_STATE_PENDING_COMP,
746 };
747
748 struct mlx5_cmd_work_ent {
749 unsigned long state;
750 struct mlx5_cmd_msg *in;
751 struct mlx5_cmd_msg *out;
752 void *uout;
753 int uout_size;
754 mlx5_cmd_cbk_t callback;
755 struct delayed_work cb_timeout_work;
756 void *context;
757 int idx;
758 struct completion handling;
759 struct completion done;
760 struct mlx5_cmd *cmd;
761 struct work_struct work;
762 struct mlx5_cmd_layout *lay;
763 int ret;
764 int page_queue;
765 u8 status;
766 u8 token;
767 u64 ts1;
768 u64 ts2;
769 u16 op;
770 bool polling;
771 /* Track the max comp handlers */
772 refcount_t refcnt;
773 };
774
775 struct mlx5_pas {
776 u64 pa;
777 u8 log_sz;
778 };
779
780 enum phy_port_state {
781 MLX5_AAA_111
782 };
783
784 struct mlx5_hca_vport_context {
785 u32 field_select;
786 bool sm_virt_aware;
787 bool has_smi;
788 bool has_raw;
789 enum port_state_policy policy;
790 enum phy_port_state phys_state;
791 enum ib_port_state vport_state;
792 u8 port_physical_state;
793 u64 sys_image_guid;
794 u64 port_guid;
795 u64 node_guid;
796 u32 cap_mask1;
797 u32 cap_mask1_perm;
798 u16 cap_mask2;
799 u16 cap_mask2_perm;
800 u16 lid;
801 u8 init_type_reply; /* bitmask: see ib spec 14.2.5.6 InitTypeReply */
802 u8 lmc;
803 u8 subnet_timeout;
804 u16 sm_lid;
805 u8 sm_sl;
806 u16 qkey_violation_counter;
807 u16 pkey_violation_counter;
808 bool grh_required;
809 };
810
mlx5_buf_offset(struct mlx5_frag_buf * buf,int offset)811 static inline void *mlx5_buf_offset(struct mlx5_frag_buf *buf, int offset)
812 {
813 return buf->frags->buf + offset;
814 }
815
816 #define STRUCT_FIELD(header, field) \
817 .struct_offset_bytes = offsetof(struct ib_unpacked_ ## header, field), \
818 .struct_size_bytes = sizeof((struct ib_unpacked_ ## header *)0)->field
819
pci2mlx5_core_dev(struct pci_dev * pdev)820 static inline struct mlx5_core_dev *pci2mlx5_core_dev(struct pci_dev *pdev)
821 {
822 return pci_get_drvdata(pdev);
823 }
824
825 extern struct dentry *mlx5_debugfs_root;
826
fw_rev_maj(struct mlx5_core_dev * dev)827 static inline u16 fw_rev_maj(struct mlx5_core_dev *dev)
828 {
829 return ioread32be(&dev->iseg->fw_rev) & 0xffff;
830 }
831
fw_rev_min(struct mlx5_core_dev * dev)832 static inline u16 fw_rev_min(struct mlx5_core_dev *dev)
833 {
834 return ioread32be(&dev->iseg->fw_rev) >> 16;
835 }
836
fw_rev_sub(struct mlx5_core_dev * dev)837 static inline u16 fw_rev_sub(struct mlx5_core_dev *dev)
838 {
839 return ioread32be(&dev->iseg->cmdif_rev_fw_sub) & 0xffff;
840 }
841
mlx5_base_mkey(const u32 key)842 static inline u32 mlx5_base_mkey(const u32 key)
843 {
844 return key & 0xffffff00u;
845 }
846
mlx5_init_fbc_offset(struct mlx5_buf_list * frags,u8 log_stride,u8 log_sz,u16 strides_offset,struct mlx5_frag_buf_ctrl * fbc)847 static inline void mlx5_init_fbc_offset(struct mlx5_buf_list *frags,
848 u8 log_stride, u8 log_sz,
849 u16 strides_offset,
850 struct mlx5_frag_buf_ctrl *fbc)
851 {
852 fbc->frags = frags;
853 fbc->log_stride = log_stride;
854 fbc->log_sz = log_sz;
855 fbc->sz_m1 = (1 << fbc->log_sz) - 1;
856 fbc->log_frag_strides = PAGE_SHIFT - fbc->log_stride;
857 fbc->frag_sz_m1 = (1 << fbc->log_frag_strides) - 1;
858 fbc->strides_offset = strides_offset;
859 }
860
mlx5_init_fbc(struct mlx5_buf_list * frags,u8 log_stride,u8 log_sz,struct mlx5_frag_buf_ctrl * fbc)861 static inline void mlx5_init_fbc(struct mlx5_buf_list *frags,
862 u8 log_stride, u8 log_sz,
863 struct mlx5_frag_buf_ctrl *fbc)
864 {
865 mlx5_init_fbc_offset(frags, log_stride, log_sz, 0, fbc);
866 }
867
mlx5_frag_buf_get_wqe(struct mlx5_frag_buf_ctrl * fbc,u32 ix)868 static inline void *mlx5_frag_buf_get_wqe(struct mlx5_frag_buf_ctrl *fbc,
869 u32 ix)
870 {
871 unsigned int frag;
872
873 ix += fbc->strides_offset;
874 frag = ix >> fbc->log_frag_strides;
875
876 return fbc->frags[frag].buf + ((fbc->frag_sz_m1 & ix) << fbc->log_stride);
877 }
878
879 static inline u32
mlx5_frag_buf_get_idx_last_contig_stride(struct mlx5_frag_buf_ctrl * fbc,u32 ix)880 mlx5_frag_buf_get_idx_last_contig_stride(struct mlx5_frag_buf_ctrl *fbc, u32 ix)
881 {
882 u32 last_frag_stride_idx = (ix + fbc->strides_offset) | fbc->frag_sz_m1;
883
884 return min_t(u32, last_frag_stride_idx - fbc->strides_offset, fbc->sz_m1);
885 }
886
887 enum {
888 CMD_ALLOWED_OPCODE_ALL,
889 };
890
891 int mlx5_cmd_init(struct mlx5_core_dev *dev);
892 void mlx5_cmd_cleanup(struct mlx5_core_dev *dev);
893 void mlx5_cmd_set_state(struct mlx5_core_dev *dev,
894 enum mlx5_cmdif_state cmdif_state);
895 void mlx5_cmd_use_events(struct mlx5_core_dev *dev);
896 void mlx5_cmd_use_polling(struct mlx5_core_dev *dev);
897 void mlx5_cmd_allowed_opcode(struct mlx5_core_dev *dev, u16 opcode);
898
899 struct mlx5_async_ctx {
900 struct mlx5_core_dev *dev;
901 atomic_t num_inflight;
902 struct wait_queue_head wait;
903 };
904
905 struct mlx5_async_work;
906
907 typedef void (*mlx5_async_cbk_t)(int status, struct mlx5_async_work *context);
908
909 struct mlx5_async_work {
910 struct mlx5_async_ctx *ctx;
911 mlx5_async_cbk_t user_callback;
912 };
913
914 void mlx5_cmd_init_async_ctx(struct mlx5_core_dev *dev,
915 struct mlx5_async_ctx *ctx);
916 void mlx5_cmd_cleanup_async_ctx(struct mlx5_async_ctx *ctx);
917 int mlx5_cmd_exec_cb(struct mlx5_async_ctx *ctx, void *in, int in_size,
918 void *out, int out_size, mlx5_async_cbk_t callback,
919 struct mlx5_async_work *work);
920
921 int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out,
922 int out_size);
923
924 #define mlx5_cmd_exec_inout(dev, ifc_cmd, in, out) \
925 ({ \
926 mlx5_cmd_exec(dev, in, MLX5_ST_SZ_BYTES(ifc_cmd##_in), out, \
927 MLX5_ST_SZ_BYTES(ifc_cmd##_out)); \
928 })
929
930 #define mlx5_cmd_exec_in(dev, ifc_cmd, in) \
931 ({ \
932 u32 _out[MLX5_ST_SZ_DW(ifc_cmd##_out)] = {}; \
933 mlx5_cmd_exec_inout(dev, ifc_cmd, in, _out); \
934 })
935
936 int mlx5_cmd_exec_polling(struct mlx5_core_dev *dev, void *in, int in_size,
937 void *out, int out_size);
938 void mlx5_cmd_mbox_status(void *out, u8 *status, u32 *syndrome);
939 bool mlx5_cmd_is_down(struct mlx5_core_dev *dev);
940
941 int mlx5_core_get_caps(struct mlx5_core_dev *dev, enum mlx5_cap_type cap_type);
942 int mlx5_cmd_alloc_uar(struct mlx5_core_dev *dev, u32 *uarn);
943 int mlx5_cmd_free_uar(struct mlx5_core_dev *dev, u32 uarn);
944 void mlx5_health_flush(struct mlx5_core_dev *dev);
945 void mlx5_health_cleanup(struct mlx5_core_dev *dev);
946 int mlx5_health_init(struct mlx5_core_dev *dev);
947 void mlx5_start_health_poll(struct mlx5_core_dev *dev);
948 void mlx5_stop_health_poll(struct mlx5_core_dev *dev, bool disable_health);
949 void mlx5_drain_health_wq(struct mlx5_core_dev *dev);
950 void mlx5_trigger_health_work(struct mlx5_core_dev *dev);
951 int mlx5_buf_alloc(struct mlx5_core_dev *dev,
952 int size, struct mlx5_frag_buf *buf);
953 void mlx5_buf_free(struct mlx5_core_dev *dev, struct mlx5_frag_buf *buf);
954 int mlx5_frag_buf_alloc_node(struct mlx5_core_dev *dev, int size,
955 struct mlx5_frag_buf *buf, int node);
956 void mlx5_frag_buf_free(struct mlx5_core_dev *dev, struct mlx5_frag_buf *buf);
957 struct mlx5_cmd_mailbox *mlx5_alloc_cmd_mailbox_chain(struct mlx5_core_dev *dev,
958 gfp_t flags, int npages);
959 void mlx5_free_cmd_mailbox_chain(struct mlx5_core_dev *dev,
960 struct mlx5_cmd_mailbox *head);
961 int mlx5_core_create_mkey(struct mlx5_core_dev *dev,
962 struct mlx5_core_mkey *mkey,
963 u32 *in, int inlen);
964 int mlx5_core_destroy_mkey(struct mlx5_core_dev *dev,
965 struct mlx5_core_mkey *mkey);
966 int mlx5_core_query_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mkey *mkey,
967 u32 *out, int outlen);
968 int mlx5_core_alloc_pd(struct mlx5_core_dev *dev, u32 *pdn);
969 int mlx5_core_dealloc_pd(struct mlx5_core_dev *dev, u32 pdn);
970 int mlx5_pagealloc_init(struct mlx5_core_dev *dev);
971 void mlx5_pagealloc_cleanup(struct mlx5_core_dev *dev);
972 void mlx5_pagealloc_start(struct mlx5_core_dev *dev);
973 void mlx5_pagealloc_stop(struct mlx5_core_dev *dev);
974 void mlx5_core_req_pages_handler(struct mlx5_core_dev *dev, u16 func_id,
975 s32 npages, bool ec_function);
976 int mlx5_satisfy_startup_pages(struct mlx5_core_dev *dev, int boot);
977 int mlx5_reclaim_startup_pages(struct mlx5_core_dev *dev);
978 void mlx5_register_debugfs(void);
979 void mlx5_unregister_debugfs(void);
980
981 void mlx5_fill_page_array(struct mlx5_frag_buf *buf, __be64 *pas);
982 void mlx5_fill_page_frag_array_perm(struct mlx5_frag_buf *buf, __be64 *pas, u8 perm);
983 void mlx5_fill_page_frag_array(struct mlx5_frag_buf *frag_buf, __be64 *pas);
984 int mlx5_vector2eqn(struct mlx5_core_dev *dev, int vector, int *eqn,
985 unsigned int *irqn);
986 int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
987 int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
988
989 void mlx5_qp_debugfs_init(struct mlx5_core_dev *dev);
990 void mlx5_qp_debugfs_cleanup(struct mlx5_core_dev *dev);
991 int mlx5_core_access_reg(struct mlx5_core_dev *dev, void *data_in,
992 int size_in, void *data_out, int size_out,
993 u16 reg_num, int arg, int write);
994
995 int mlx5_db_alloc(struct mlx5_core_dev *dev, struct mlx5_db *db);
996 int mlx5_db_alloc_node(struct mlx5_core_dev *dev, struct mlx5_db *db,
997 int node);
998 void mlx5_db_free(struct mlx5_core_dev *dev, struct mlx5_db *db);
999
1000 const char *mlx5_command_str(int command);
1001 void mlx5_cmdif_debugfs_init(struct mlx5_core_dev *dev);
1002 void mlx5_cmdif_debugfs_cleanup(struct mlx5_core_dev *dev);
1003 int mlx5_core_create_psv(struct mlx5_core_dev *dev, u32 pdn,
1004 int npsvs, u32 *sig_index);
1005 int mlx5_core_destroy_psv(struct mlx5_core_dev *dev, int psv_num);
1006 void mlx5_core_put_rsc(struct mlx5_core_rsc_common *common);
1007 int mlx5_query_odp_caps(struct mlx5_core_dev *dev,
1008 struct mlx5_odp_caps *odp_caps);
1009 int mlx5_core_query_ib_ppcnt(struct mlx5_core_dev *dev,
1010 u8 port_num, void *out, size_t sz);
1011
1012 int mlx5_init_rl_table(struct mlx5_core_dev *dev);
1013 void mlx5_cleanup_rl_table(struct mlx5_core_dev *dev);
1014 int mlx5_rl_add_rate(struct mlx5_core_dev *dev, u16 *index,
1015 struct mlx5_rate_limit *rl);
1016 void mlx5_rl_remove_rate(struct mlx5_core_dev *dev, struct mlx5_rate_limit *rl);
1017 bool mlx5_rl_is_in_range(struct mlx5_core_dev *dev, u32 rate);
1018 int mlx5_rl_add_rate_raw(struct mlx5_core_dev *dev, void *rl_in, u16 uid,
1019 bool dedicated_entry, u16 *index);
1020 void mlx5_rl_remove_rate_raw(struct mlx5_core_dev *dev, u16 index);
1021 bool mlx5_rl_are_equal(struct mlx5_rate_limit *rl_0,
1022 struct mlx5_rate_limit *rl_1);
1023 int mlx5_alloc_bfreg(struct mlx5_core_dev *mdev, struct mlx5_sq_bfreg *bfreg,
1024 bool map_wc, bool fast_path);
1025 void mlx5_free_bfreg(struct mlx5_core_dev *mdev, struct mlx5_sq_bfreg *bfreg);
1026
1027 unsigned int mlx5_comp_vectors_count(struct mlx5_core_dev *dev);
1028 struct cpumask *
1029 mlx5_comp_irq_get_affinity_mask(struct mlx5_core_dev *dev, int vector);
1030 unsigned int mlx5_core_reserved_gids_count(struct mlx5_core_dev *dev);
1031 int mlx5_core_roce_gid_set(struct mlx5_core_dev *dev, unsigned int index,
1032 u8 roce_version, u8 roce_l3_type, const u8 *gid,
1033 const u8 *mac, bool vlan, u16 vlan_id, u8 port_num);
1034
mlx5_mkey_to_idx(u32 mkey)1035 static inline u32 mlx5_mkey_to_idx(u32 mkey)
1036 {
1037 return mkey >> 8;
1038 }
1039
mlx5_idx_to_mkey(u32 mkey_idx)1040 static inline u32 mlx5_idx_to_mkey(u32 mkey_idx)
1041 {
1042 return mkey_idx << 8;
1043 }
1044
mlx5_mkey_variant(u32 mkey)1045 static inline u8 mlx5_mkey_variant(u32 mkey)
1046 {
1047 return mkey & 0xff;
1048 }
1049
1050 enum {
1051 MLX5_PROF_MASK_QP_SIZE = (u64)1 << 0,
1052 MLX5_PROF_MASK_MR_CACHE = (u64)1 << 1,
1053 };
1054
1055 enum {
1056 MR_CACHE_LAST_STD_ENTRY = 20,
1057 MLX5_IMR_MTT_CACHE_ENTRY,
1058 MLX5_IMR_KSM_CACHE_ENTRY,
1059 MAX_MR_CACHE_ENTRIES
1060 };
1061
1062 enum {
1063 MLX5_INTERFACE_PROTOCOL_IB = 0,
1064 MLX5_INTERFACE_PROTOCOL_ETH = 1,
1065 MLX5_INTERFACE_PROTOCOL_VDPA = 2,
1066 };
1067
1068 struct mlx5_interface {
1069 void * (*add)(struct mlx5_core_dev *dev);
1070 void (*remove)(struct mlx5_core_dev *dev, void *context);
1071 int (*attach)(struct mlx5_core_dev *dev, void *context);
1072 void (*detach)(struct mlx5_core_dev *dev, void *context);
1073 int protocol;
1074 struct list_head list;
1075 };
1076
1077 int mlx5_register_interface(struct mlx5_interface *intf);
1078 void mlx5_unregister_interface(struct mlx5_interface *intf);
1079 int mlx5_notifier_register(struct mlx5_core_dev *dev, struct notifier_block *nb);
1080 int mlx5_notifier_unregister(struct mlx5_core_dev *dev, struct notifier_block *nb);
1081 int mlx5_eq_notifier_register(struct mlx5_core_dev *dev, struct mlx5_nb *nb);
1082 int mlx5_eq_notifier_unregister(struct mlx5_core_dev *dev, struct mlx5_nb *nb);
1083
1084 int mlx5_core_query_vendor_id(struct mlx5_core_dev *mdev, u32 *vendor_id);
1085
1086 int mlx5_cmd_create_vport_lag(struct mlx5_core_dev *dev);
1087 int mlx5_cmd_destroy_vport_lag(struct mlx5_core_dev *dev);
1088 bool mlx5_lag_is_roce(struct mlx5_core_dev *dev);
1089 bool mlx5_lag_is_sriov(struct mlx5_core_dev *dev);
1090 bool mlx5_lag_is_multipath(struct mlx5_core_dev *dev);
1091 bool mlx5_lag_is_active(struct mlx5_core_dev *dev);
1092 struct net_device *mlx5_lag_get_roce_netdev(struct mlx5_core_dev *dev);
1093 u8 mlx5_lag_get_slave_port(struct mlx5_core_dev *dev,
1094 struct net_device *slave);
1095 int mlx5_lag_query_cong_counters(struct mlx5_core_dev *dev,
1096 u64 *values,
1097 int num_counters,
1098 size_t *offsets);
1099 struct mlx5_uars_page *mlx5_get_uars_page(struct mlx5_core_dev *mdev);
1100 void mlx5_put_uars_page(struct mlx5_core_dev *mdev, struct mlx5_uars_page *up);
1101 int mlx5_dm_sw_icm_alloc(struct mlx5_core_dev *dev, enum mlx5_sw_icm_type type,
1102 u64 length, u32 log_alignment, u16 uid,
1103 phys_addr_t *addr, u32 *obj_id);
1104 int mlx5_dm_sw_icm_dealloc(struct mlx5_core_dev *dev, enum mlx5_sw_icm_type type,
1105 u64 length, u16 uid, phys_addr_t addr, u32 obj_id);
1106
1107 #ifdef CONFIG_MLX5_CORE_IPOIB
1108 struct net_device *mlx5_rdma_netdev_alloc(struct mlx5_core_dev *mdev,
1109 struct ib_device *ibdev,
1110 const char *name,
1111 void (*setup)(struct net_device *));
1112 #endif /* CONFIG_MLX5_CORE_IPOIB */
1113 int mlx5_rdma_rn_get_params(struct mlx5_core_dev *mdev,
1114 struct ib_device *device,
1115 struct rdma_netdev_alloc_params *params);
1116
1117 struct mlx5_profile {
1118 u64 mask;
1119 u8 log_max_qp;
1120 struct {
1121 int size;
1122 int limit;
1123 } mr_cache[MAX_MR_CACHE_ENTRIES];
1124 };
1125
1126 enum {
1127 MLX5_PCI_DEV_IS_VF = 1 << 0,
1128 };
1129
mlx5_core_is_pf(const struct mlx5_core_dev * dev)1130 static inline bool mlx5_core_is_pf(const struct mlx5_core_dev *dev)
1131 {
1132 return dev->coredev_type == MLX5_COREDEV_PF;
1133 }
1134
mlx5_core_is_vf(const struct mlx5_core_dev * dev)1135 static inline bool mlx5_core_is_vf(const struct mlx5_core_dev *dev)
1136 {
1137 return dev->coredev_type == MLX5_COREDEV_VF;
1138 }
1139
mlx5_core_is_ecpf(struct mlx5_core_dev * dev)1140 static inline bool mlx5_core_is_ecpf(struct mlx5_core_dev *dev)
1141 {
1142 return dev->caps.embedded_cpu;
1143 }
1144
1145 static inline bool
mlx5_core_is_ecpf_esw_manager(const struct mlx5_core_dev * dev)1146 mlx5_core_is_ecpf_esw_manager(const struct mlx5_core_dev *dev)
1147 {
1148 return dev->caps.embedded_cpu && MLX5_CAP_GEN(dev, eswitch_manager);
1149 }
1150
mlx5_ecpf_vport_exists(const struct mlx5_core_dev * dev)1151 static inline bool mlx5_ecpf_vport_exists(const struct mlx5_core_dev *dev)
1152 {
1153 return mlx5_core_is_pf(dev) && MLX5_CAP_ESW(dev, ecpf_vport_exists);
1154 }
1155
mlx5_core_max_vfs(const struct mlx5_core_dev * dev)1156 static inline u16 mlx5_core_max_vfs(const struct mlx5_core_dev *dev)
1157 {
1158 return dev->priv.sriov.max_vfs;
1159 }
1160
mlx5_get_gid_table_len(u16 param)1161 static inline int mlx5_get_gid_table_len(u16 param)
1162 {
1163 if (param > 4) {
1164 pr_warn("gid table length is zero\n");
1165 return 0;
1166 }
1167
1168 return 8 * (1 << param);
1169 }
1170
mlx5_rl_is_supported(struct mlx5_core_dev * dev)1171 static inline bool mlx5_rl_is_supported(struct mlx5_core_dev *dev)
1172 {
1173 return !!(dev->priv.rl_table.max_size);
1174 }
1175
mlx5_core_is_mp_slave(struct mlx5_core_dev * dev)1176 static inline int mlx5_core_is_mp_slave(struct mlx5_core_dev *dev)
1177 {
1178 return MLX5_CAP_GEN(dev, affiliate_nic_vport_criteria) &&
1179 MLX5_CAP_GEN(dev, num_vhca_ports) <= 1;
1180 }
1181
mlx5_core_is_mp_master(struct mlx5_core_dev * dev)1182 static inline int mlx5_core_is_mp_master(struct mlx5_core_dev *dev)
1183 {
1184 return MLX5_CAP_GEN(dev, num_vhca_ports) > 1;
1185 }
1186
mlx5_core_mp_enabled(struct mlx5_core_dev * dev)1187 static inline int mlx5_core_mp_enabled(struct mlx5_core_dev *dev)
1188 {
1189 return mlx5_core_is_mp_slave(dev) ||
1190 mlx5_core_is_mp_master(dev);
1191 }
1192
mlx5_core_native_port_num(struct mlx5_core_dev * dev)1193 static inline int mlx5_core_native_port_num(struct mlx5_core_dev *dev)
1194 {
1195 if (!mlx5_core_mp_enabled(dev))
1196 return 1;
1197
1198 return MLX5_CAP_GEN(dev, native_port_num);
1199 }
1200
1201 enum {
1202 MLX5_TRIGGERED_CMD_COMP = (u64)1 << 32,
1203 };
1204
mlx5_is_roce_enabled(struct mlx5_core_dev * dev)1205 static inline bool mlx5_is_roce_enabled(struct mlx5_core_dev *dev)
1206 {
1207 struct devlink *devlink = priv_to_devlink(dev);
1208 union devlink_param_value val;
1209
1210 devlink_param_driverinit_value_get(devlink,
1211 DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE,
1212 &val);
1213 return val.vbool;
1214 }
1215
1216 /**
1217 * mlx5_core_net - Provide net namespace of the mlx5_core_dev
1218 * @dev: mlx5 core device
1219 *
1220 * mlx5_core_net() returns the net namespace of mlx5 core device.
1221 * This can be called only in below described limited context.
1222 * (a) When a devlink instance for mlx5_core is registered and
1223 * when devlink reload operation is disabled.
1224 * or
1225 * (b) during devlink reload reload_down() and reload_up callbacks
1226 * where it is ensured that devlink instance's net namespace is
1227 * stable.
1228 */
mlx5_core_net(struct mlx5_core_dev * dev)1229 static inline struct net *mlx5_core_net(struct mlx5_core_dev *dev)
1230 {
1231 return devlink_net(priv_to_devlink(dev));
1232 }
1233
1234 #endif /* MLX5_DRIVER_H */
1235
