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Merge branch 'for-3.13-fixes' into for-3.14
[mirror_ubuntu-artful-kernel.git] / include / linux / mlx4 / device.h
1 /*
2 * Copyright (c) 2006, 2007 Cisco Systems, Inc. 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 MLX4_DEVICE_H
34 #define MLX4_DEVICE_H
35
36 #include <linux/if_ether.h>
37 #include <linux/pci.h>
38 #include <linux/completion.h>
39 #include <linux/radix-tree.h>
40 #include <linux/cpu_rmap.h>
41
42 #include <linux/atomic.h>
43
44 #include <linux/clocksource.h>
45
46 #define MAX_MSIX_P_PORT 17
47 #define MAX_MSIX 64
48 #define MSIX_LEGACY_SZ 4
49 #define MIN_MSIX_P_PORT 5
50
51 enum {
52 MLX4_FLAG_MSI_X = 1 << 0,
53 MLX4_FLAG_OLD_PORT_CMDS = 1 << 1,
54 MLX4_FLAG_MASTER = 1 << 2,
55 MLX4_FLAG_SLAVE = 1 << 3,
56 MLX4_FLAG_SRIOV = 1 << 4,
57 MLX4_FLAG_OLD_REG_MAC = 1 << 6,
58 };
59
60 enum {
61 MLX4_PORT_CAP_IS_SM = 1 << 1,
62 MLX4_PORT_CAP_DEV_MGMT_SUP = 1 << 19,
63 };
64
65 enum {
66 MLX4_MAX_PORTS = 2,
67 MLX4_MAX_PORT_PKEYS = 128
68 };
69
70 /* base qkey for use in sriov tunnel-qp/proxy-qp communication.
71 * These qkeys must not be allowed for general use. This is a 64k range,
72 * and to test for violation, we use the mask (protect against future chg).
73 */
74 #define MLX4_RESERVED_QKEY_BASE (0xFFFF0000)
75 #define MLX4_RESERVED_QKEY_MASK (0xFFFF0000)
76
77 enum {
78 MLX4_BOARD_ID_LEN = 64
79 };
80
81 enum {
82 MLX4_MAX_NUM_PF = 16,
83 MLX4_MAX_NUM_VF = 64,
84 MLX4_MFUNC_MAX = 80,
85 MLX4_MAX_EQ_NUM = 1024,
86 MLX4_MFUNC_EQ_NUM = 4,
87 MLX4_MFUNC_MAX_EQES = 8,
88 MLX4_MFUNC_EQE_MASK = (MLX4_MFUNC_MAX_EQES - 1)
89 };
90
91 /* Driver supports 3 diffrent device methods to manage traffic steering:
92 * -device managed - High level API for ib and eth flow steering. FW is
93 * managing flow steering tables.
94 * - B0 steering mode - Common low level API for ib and (if supported) eth.
95 * - A0 steering mode - Limited low level API for eth. In case of IB,
96 * B0 mode is in use.
97 */
98 enum {
99 MLX4_STEERING_MODE_A0,
100 MLX4_STEERING_MODE_B0,
101 MLX4_STEERING_MODE_DEVICE_MANAGED
102 };
103
104 static inline const char *mlx4_steering_mode_str(int steering_mode)
105 {
106 switch (steering_mode) {
107 case MLX4_STEERING_MODE_A0:
108 return "A0 steering";
109
110 case MLX4_STEERING_MODE_B0:
111 return "B0 steering";
112
113 case MLX4_STEERING_MODE_DEVICE_MANAGED:
114 return "Device managed flow steering";
115
116 default:
117 return "Unrecognize steering mode";
118 }
119 }
120
121 enum {
122 MLX4_DEV_CAP_FLAG_RC = 1LL << 0,
123 MLX4_DEV_CAP_FLAG_UC = 1LL << 1,
124 MLX4_DEV_CAP_FLAG_UD = 1LL << 2,
125 MLX4_DEV_CAP_FLAG_XRC = 1LL << 3,
126 MLX4_DEV_CAP_FLAG_SRQ = 1LL << 6,
127 MLX4_DEV_CAP_FLAG_IPOIB_CSUM = 1LL << 7,
128 MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR = 1LL << 8,
129 MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR = 1LL << 9,
130 MLX4_DEV_CAP_FLAG_DPDP = 1LL << 12,
131 MLX4_DEV_CAP_FLAG_BLH = 1LL << 15,
132 MLX4_DEV_CAP_FLAG_MEM_WINDOW = 1LL << 16,
133 MLX4_DEV_CAP_FLAG_APM = 1LL << 17,
134 MLX4_DEV_CAP_FLAG_ATOMIC = 1LL << 18,
135 MLX4_DEV_CAP_FLAG_RAW_MCAST = 1LL << 19,
136 MLX4_DEV_CAP_FLAG_UD_AV_PORT = 1LL << 20,
137 MLX4_DEV_CAP_FLAG_UD_MCAST = 1LL << 21,
138 MLX4_DEV_CAP_FLAG_IBOE = 1LL << 30,
139 MLX4_DEV_CAP_FLAG_UC_LOOPBACK = 1LL << 32,
140 MLX4_DEV_CAP_FLAG_FCS_KEEP = 1LL << 34,
141 MLX4_DEV_CAP_FLAG_WOL_PORT1 = 1LL << 37,
142 MLX4_DEV_CAP_FLAG_WOL_PORT2 = 1LL << 38,
143 MLX4_DEV_CAP_FLAG_UDP_RSS = 1LL << 40,
144 MLX4_DEV_CAP_FLAG_VEP_UC_STEER = 1LL << 41,
145 MLX4_DEV_CAP_FLAG_VEP_MC_STEER = 1LL << 42,
146 MLX4_DEV_CAP_FLAG_COUNTERS = 1LL << 48,
147 MLX4_DEV_CAP_FLAG_SET_ETH_SCHED = 1LL << 53,
148 MLX4_DEV_CAP_FLAG_SENSE_SUPPORT = 1LL << 55,
149 MLX4_DEV_CAP_FLAG_PORT_MNG_CHG_EV = 1LL << 59,
150 MLX4_DEV_CAP_FLAG_64B_EQE = 1LL << 61,
151 MLX4_DEV_CAP_FLAG_64B_CQE = 1LL << 62
152 };
153
154 enum {
155 MLX4_DEV_CAP_FLAG2_RSS = 1LL << 0,
156 MLX4_DEV_CAP_FLAG2_RSS_TOP = 1LL << 1,
157 MLX4_DEV_CAP_FLAG2_RSS_XOR = 1LL << 2,
158 MLX4_DEV_CAP_FLAG2_FS_EN = 1LL << 3,
159 MLX4_DEV_CAP_FLAG2_REASSIGN_MAC_EN = 1LL << 4,
160 MLX4_DEV_CAP_FLAG2_TS = 1LL << 5,
161 MLX4_DEV_CAP_FLAG2_VLAN_CONTROL = 1LL << 6,
162 MLX4_DEV_CAP_FLAG2_FSM = 1LL << 7,
163 MLX4_DEV_CAP_FLAG2_UPDATE_QP = 1LL << 8
164 };
165
166 enum {
167 MLX4_DEV_CAP_64B_EQE_ENABLED = 1LL << 0,
168 MLX4_DEV_CAP_64B_CQE_ENABLED = 1LL << 1
169 };
170
171 enum {
172 MLX4_USER_DEV_CAP_64B_CQE = 1L << 0
173 };
174
175 enum {
176 MLX4_FUNC_CAP_64B_EQE_CQE = 1L << 0
177 };
178
179
180 #define MLX4_ATTR_EXTENDED_PORT_INFO cpu_to_be16(0xff90)
181
182 enum {
183 MLX4_BMME_FLAG_WIN_TYPE_2B = 1 << 1,
184 MLX4_BMME_FLAG_LOCAL_INV = 1 << 6,
185 MLX4_BMME_FLAG_REMOTE_INV = 1 << 7,
186 MLX4_BMME_FLAG_TYPE_2_WIN = 1 << 9,
187 MLX4_BMME_FLAG_RESERVED_LKEY = 1 << 10,
188 MLX4_BMME_FLAG_FAST_REG_WR = 1 << 11,
189 };
190
191 enum mlx4_event {
192 MLX4_EVENT_TYPE_COMP = 0x00,
193 MLX4_EVENT_TYPE_PATH_MIG = 0x01,
194 MLX4_EVENT_TYPE_COMM_EST = 0x02,
195 MLX4_EVENT_TYPE_SQ_DRAINED = 0x03,
196 MLX4_EVENT_TYPE_SRQ_QP_LAST_WQE = 0x13,
197 MLX4_EVENT_TYPE_SRQ_LIMIT = 0x14,
198 MLX4_EVENT_TYPE_CQ_ERROR = 0x04,
199 MLX4_EVENT_TYPE_WQ_CATAS_ERROR = 0x05,
200 MLX4_EVENT_TYPE_EEC_CATAS_ERROR = 0x06,
201 MLX4_EVENT_TYPE_PATH_MIG_FAILED = 0x07,
202 MLX4_EVENT_TYPE_WQ_INVAL_REQ_ERROR = 0x10,
203 MLX4_EVENT_TYPE_WQ_ACCESS_ERROR = 0x11,
204 MLX4_EVENT_TYPE_SRQ_CATAS_ERROR = 0x12,
205 MLX4_EVENT_TYPE_LOCAL_CATAS_ERROR = 0x08,
206 MLX4_EVENT_TYPE_PORT_CHANGE = 0x09,
207 MLX4_EVENT_TYPE_EQ_OVERFLOW = 0x0f,
208 MLX4_EVENT_TYPE_ECC_DETECT = 0x0e,
209 MLX4_EVENT_TYPE_CMD = 0x0a,
210 MLX4_EVENT_TYPE_VEP_UPDATE = 0x19,
211 MLX4_EVENT_TYPE_COMM_CHANNEL = 0x18,
212 MLX4_EVENT_TYPE_OP_REQUIRED = 0x1a,
213 MLX4_EVENT_TYPE_FATAL_WARNING = 0x1b,
214 MLX4_EVENT_TYPE_FLR_EVENT = 0x1c,
215 MLX4_EVENT_TYPE_PORT_MNG_CHG_EVENT = 0x1d,
216 MLX4_EVENT_TYPE_NONE = 0xff,
217 };
218
219 enum {
220 MLX4_PORT_CHANGE_SUBTYPE_DOWN = 1,
221 MLX4_PORT_CHANGE_SUBTYPE_ACTIVE = 4
222 };
223
224 enum {
225 MLX4_FATAL_WARNING_SUBTYPE_WARMING = 0,
226 };
227
228 enum slave_port_state {
229 SLAVE_PORT_DOWN = 0,
230 SLAVE_PENDING_UP,
231 SLAVE_PORT_UP,
232 };
233
234 enum slave_port_gen_event {
235 SLAVE_PORT_GEN_EVENT_DOWN = 0,
236 SLAVE_PORT_GEN_EVENT_UP,
237 SLAVE_PORT_GEN_EVENT_NONE,
238 };
239
240 enum slave_port_state_event {
241 MLX4_PORT_STATE_DEV_EVENT_PORT_DOWN,
242 MLX4_PORT_STATE_DEV_EVENT_PORT_UP,
243 MLX4_PORT_STATE_IB_PORT_STATE_EVENT_GID_VALID,
244 MLX4_PORT_STATE_IB_EVENT_GID_INVALID,
245 };
246
247 enum {
248 MLX4_PERM_LOCAL_READ = 1 << 10,
249 MLX4_PERM_LOCAL_WRITE = 1 << 11,
250 MLX4_PERM_REMOTE_READ = 1 << 12,
251 MLX4_PERM_REMOTE_WRITE = 1 << 13,
252 MLX4_PERM_ATOMIC = 1 << 14,
253 MLX4_PERM_BIND_MW = 1 << 15,
254 };
255
256 enum {
257 MLX4_OPCODE_NOP = 0x00,
258 MLX4_OPCODE_SEND_INVAL = 0x01,
259 MLX4_OPCODE_RDMA_WRITE = 0x08,
260 MLX4_OPCODE_RDMA_WRITE_IMM = 0x09,
261 MLX4_OPCODE_SEND = 0x0a,
262 MLX4_OPCODE_SEND_IMM = 0x0b,
263 MLX4_OPCODE_LSO = 0x0e,
264 MLX4_OPCODE_RDMA_READ = 0x10,
265 MLX4_OPCODE_ATOMIC_CS = 0x11,
266 MLX4_OPCODE_ATOMIC_FA = 0x12,
267 MLX4_OPCODE_MASKED_ATOMIC_CS = 0x14,
268 MLX4_OPCODE_MASKED_ATOMIC_FA = 0x15,
269 MLX4_OPCODE_BIND_MW = 0x18,
270 MLX4_OPCODE_FMR = 0x19,
271 MLX4_OPCODE_LOCAL_INVAL = 0x1b,
272 MLX4_OPCODE_CONFIG_CMD = 0x1f,
273
274 MLX4_RECV_OPCODE_RDMA_WRITE_IMM = 0x00,
275 MLX4_RECV_OPCODE_SEND = 0x01,
276 MLX4_RECV_OPCODE_SEND_IMM = 0x02,
277 MLX4_RECV_OPCODE_SEND_INVAL = 0x03,
278
279 MLX4_CQE_OPCODE_ERROR = 0x1e,
280 MLX4_CQE_OPCODE_RESIZE = 0x16,
281 };
282
283 enum {
284 MLX4_STAT_RATE_OFFSET = 5
285 };
286
287 enum mlx4_protocol {
288 MLX4_PROT_IB_IPV6 = 0,
289 MLX4_PROT_ETH,
290 MLX4_PROT_IB_IPV4,
291 MLX4_PROT_FCOE
292 };
293
294 enum {
295 MLX4_MTT_FLAG_PRESENT = 1
296 };
297
298 enum mlx4_qp_region {
299 MLX4_QP_REGION_FW = 0,
300 MLX4_QP_REGION_ETH_ADDR,
301 MLX4_QP_REGION_FC_ADDR,
302 MLX4_QP_REGION_FC_EXCH,
303 MLX4_NUM_QP_REGION
304 };
305
306 enum mlx4_port_type {
307 MLX4_PORT_TYPE_NONE = 0,
308 MLX4_PORT_TYPE_IB = 1,
309 MLX4_PORT_TYPE_ETH = 2,
310 MLX4_PORT_TYPE_AUTO = 3
311 };
312
313 enum mlx4_special_vlan_idx {
314 MLX4_NO_VLAN_IDX = 0,
315 MLX4_VLAN_MISS_IDX,
316 MLX4_VLAN_REGULAR
317 };
318
319 enum mlx4_steer_type {
320 MLX4_MC_STEER = 0,
321 MLX4_UC_STEER,
322 MLX4_NUM_STEERS
323 };
324
325 enum {
326 MLX4_NUM_FEXCH = 64 * 1024,
327 };
328
329 enum {
330 MLX4_MAX_FAST_REG_PAGES = 511,
331 };
332
333 enum {
334 MLX4_DEV_PMC_SUBTYPE_GUID_INFO = 0x14,
335 MLX4_DEV_PMC_SUBTYPE_PORT_INFO = 0x15,
336 MLX4_DEV_PMC_SUBTYPE_PKEY_TABLE = 0x16,
337 };
338
339 /* Port mgmt change event handling */
340 enum {
341 MLX4_EQ_PORT_INFO_MSTR_SM_LID_CHANGE_MASK = 1 << 0,
342 MLX4_EQ_PORT_INFO_GID_PFX_CHANGE_MASK = 1 << 1,
343 MLX4_EQ_PORT_INFO_LID_CHANGE_MASK = 1 << 2,
344 MLX4_EQ_PORT_INFO_CLIENT_REREG_MASK = 1 << 3,
345 MLX4_EQ_PORT_INFO_MSTR_SM_SL_CHANGE_MASK = 1 << 4,
346 };
347
348 #define MSTR_SM_CHANGE_MASK (MLX4_EQ_PORT_INFO_MSTR_SM_SL_CHANGE_MASK | \
349 MLX4_EQ_PORT_INFO_MSTR_SM_LID_CHANGE_MASK)
350
351 static inline u64 mlx4_fw_ver(u64 major, u64 minor, u64 subminor)
352 {
353 return (major << 32) | (minor << 16) | subminor;
354 }
355
356 struct mlx4_phys_caps {
357 u32 gid_phys_table_len[MLX4_MAX_PORTS + 1];
358 u32 pkey_phys_table_len[MLX4_MAX_PORTS + 1];
359 u32 num_phys_eqs;
360 u32 base_sqpn;
361 u32 base_proxy_sqpn;
362 u32 base_tunnel_sqpn;
363 };
364
365 struct mlx4_caps {
366 u64 fw_ver;
367 u32 function;
368 int num_ports;
369 int vl_cap[MLX4_MAX_PORTS + 1];
370 int ib_mtu_cap[MLX4_MAX_PORTS + 1];
371 __be32 ib_port_def_cap[MLX4_MAX_PORTS + 1];
372 u64 def_mac[MLX4_MAX_PORTS + 1];
373 int eth_mtu_cap[MLX4_MAX_PORTS + 1];
374 int gid_table_len[MLX4_MAX_PORTS + 1];
375 int pkey_table_len[MLX4_MAX_PORTS + 1];
376 int trans_type[MLX4_MAX_PORTS + 1];
377 int vendor_oui[MLX4_MAX_PORTS + 1];
378 int wavelength[MLX4_MAX_PORTS + 1];
379 u64 trans_code[MLX4_MAX_PORTS + 1];
380 int local_ca_ack_delay;
381 int num_uars;
382 u32 uar_page_size;
383 int bf_reg_size;
384 int bf_regs_per_page;
385 int max_sq_sg;
386 int max_rq_sg;
387 int num_qps;
388 int max_wqes;
389 int max_sq_desc_sz;
390 int max_rq_desc_sz;
391 int max_qp_init_rdma;
392 int max_qp_dest_rdma;
393 u32 *qp0_proxy;
394 u32 *qp1_proxy;
395 u32 *qp0_tunnel;
396 u32 *qp1_tunnel;
397 int num_srqs;
398 int max_srq_wqes;
399 int max_srq_sge;
400 int reserved_srqs;
401 int num_cqs;
402 int max_cqes;
403 int reserved_cqs;
404 int num_eqs;
405 int reserved_eqs;
406 int num_comp_vectors;
407 int comp_pool;
408 int num_mpts;
409 int max_fmr_maps;
410 int num_mtts;
411 int fmr_reserved_mtts;
412 int reserved_mtts;
413 int reserved_mrws;
414 int reserved_uars;
415 int num_mgms;
416 int num_amgms;
417 int reserved_mcgs;
418 int num_qp_per_mgm;
419 int steering_mode;
420 int fs_log_max_ucast_qp_range_size;
421 int num_pds;
422 int reserved_pds;
423 int max_xrcds;
424 int reserved_xrcds;
425 int mtt_entry_sz;
426 u32 max_msg_sz;
427 u32 page_size_cap;
428 u64 flags;
429 u64 flags2;
430 u32 bmme_flags;
431 u32 reserved_lkey;
432 u16 stat_rate_support;
433 u8 port_width_cap[MLX4_MAX_PORTS + 1];
434 int max_gso_sz;
435 int max_rss_tbl_sz;
436 int reserved_qps_cnt[MLX4_NUM_QP_REGION];
437 int reserved_qps;
438 int reserved_qps_base[MLX4_NUM_QP_REGION];
439 int log_num_macs;
440 int log_num_vlans;
441 int log_num_prios;
442 enum mlx4_port_type port_type[MLX4_MAX_PORTS + 1];
443 u8 supported_type[MLX4_MAX_PORTS + 1];
444 u8 suggested_type[MLX4_MAX_PORTS + 1];
445 u8 default_sense[MLX4_MAX_PORTS + 1];
446 u32 port_mask[MLX4_MAX_PORTS + 1];
447 enum mlx4_port_type possible_type[MLX4_MAX_PORTS + 1];
448 u32 max_counters;
449 u8 port_ib_mtu[MLX4_MAX_PORTS + 1];
450 u16 sqp_demux;
451 u32 eqe_size;
452 u32 cqe_size;
453 u8 eqe_factor;
454 u32 userspace_caps; /* userspace must be aware of these */
455 u32 function_caps; /* VFs must be aware of these */
456 u16 hca_core_clock;
457 };
458
459 struct mlx4_buf_list {
460 void *buf;
461 dma_addr_t map;
462 };
463
464 struct mlx4_buf {
465 struct mlx4_buf_list direct;
466 struct mlx4_buf_list *page_list;
467 int nbufs;
468 int npages;
469 int page_shift;
470 };
471
472 struct mlx4_mtt {
473 u32 offset;
474 int order;
475 int page_shift;
476 };
477
478 enum {
479 MLX4_DB_PER_PAGE = PAGE_SIZE / 4
480 };
481
482 struct mlx4_db_pgdir {
483 struct list_head list;
484 DECLARE_BITMAP(order0, MLX4_DB_PER_PAGE);
485 DECLARE_BITMAP(order1, MLX4_DB_PER_PAGE / 2);
486 unsigned long *bits[2];
487 __be32 *db_page;
488 dma_addr_t db_dma;
489 };
490
491 struct mlx4_ib_user_db_page;
492
493 struct mlx4_db {
494 __be32 *db;
495 union {
496 struct mlx4_db_pgdir *pgdir;
497 struct mlx4_ib_user_db_page *user_page;
498 } u;
499 dma_addr_t dma;
500 int index;
501 int order;
502 };
503
504 struct mlx4_hwq_resources {
505 struct mlx4_db db;
506 struct mlx4_mtt mtt;
507 struct mlx4_buf buf;
508 };
509
510 struct mlx4_mr {
511 struct mlx4_mtt mtt;
512 u64 iova;
513 u64 size;
514 u32 key;
515 u32 pd;
516 u32 access;
517 int enabled;
518 };
519
520 enum mlx4_mw_type {
521 MLX4_MW_TYPE_1 = 1,
522 MLX4_MW_TYPE_2 = 2,
523 };
524
525 struct mlx4_mw {
526 u32 key;
527 u32 pd;
528 enum mlx4_mw_type type;
529 int enabled;
530 };
531
532 struct mlx4_fmr {
533 struct mlx4_mr mr;
534 struct mlx4_mpt_entry *mpt;
535 __be64 *mtts;
536 dma_addr_t dma_handle;
537 int max_pages;
538 int max_maps;
539 int maps;
540 u8 page_shift;
541 };
542
543 struct mlx4_uar {
544 unsigned long pfn;
545 int index;
546 struct list_head bf_list;
547 unsigned free_bf_bmap;
548 void __iomem *map;
549 void __iomem *bf_map;
550 };
551
552 struct mlx4_bf {
553 unsigned long offset;
554 int buf_size;
555 struct mlx4_uar *uar;
556 void __iomem *reg;
557 };
558
559 struct mlx4_cq {
560 void (*comp) (struct mlx4_cq *);
561 void (*event) (struct mlx4_cq *, enum mlx4_event);
562
563 struct mlx4_uar *uar;
564
565 u32 cons_index;
566
567 __be32 *set_ci_db;
568 __be32 *arm_db;
569 int arm_sn;
570
571 int cqn;
572 unsigned vector;
573
574 atomic_t refcount;
575 struct completion free;
576 };
577
578 struct mlx4_qp {
579 void (*event) (struct mlx4_qp *, enum mlx4_event);
580
581 int qpn;
582
583 atomic_t refcount;
584 struct completion free;
585 };
586
587 struct mlx4_srq {
588 void (*event) (struct mlx4_srq *, enum mlx4_event);
589
590 int srqn;
591 int max;
592 int max_gs;
593 int wqe_shift;
594
595 atomic_t refcount;
596 struct completion free;
597 };
598
599 struct mlx4_av {
600 __be32 port_pd;
601 u8 reserved1;
602 u8 g_slid;
603 __be16 dlid;
604 u8 reserved2;
605 u8 gid_index;
606 u8 stat_rate;
607 u8 hop_limit;
608 __be32 sl_tclass_flowlabel;
609 u8 dgid[16];
610 };
611
612 struct mlx4_eth_av {
613 __be32 port_pd;
614 u8 reserved1;
615 u8 smac_idx;
616 u16 reserved2;
617 u8 reserved3;
618 u8 gid_index;
619 u8 stat_rate;
620 u8 hop_limit;
621 __be32 sl_tclass_flowlabel;
622 u8 dgid[16];
623 u32 reserved4[2];
624 __be16 vlan;
625 u8 mac[ETH_ALEN];
626 };
627
628 union mlx4_ext_av {
629 struct mlx4_av ib;
630 struct mlx4_eth_av eth;
631 };
632
633 struct mlx4_counter {
634 u8 reserved1[3];
635 u8 counter_mode;
636 __be32 num_ifc;
637 u32 reserved2[2];
638 __be64 rx_frames;
639 __be64 rx_bytes;
640 __be64 tx_frames;
641 __be64 tx_bytes;
642 };
643
644 struct mlx4_quotas {
645 int qp;
646 int cq;
647 int srq;
648 int mpt;
649 int mtt;
650 int counter;
651 int xrcd;
652 };
653
654 struct mlx4_dev {
655 struct pci_dev *pdev;
656 unsigned long flags;
657 unsigned long num_slaves;
658 struct mlx4_caps caps;
659 struct mlx4_phys_caps phys_caps;
660 struct mlx4_quotas quotas;
661 struct radix_tree_root qp_table_tree;
662 u8 rev_id;
663 char board_id[MLX4_BOARD_ID_LEN];
664 int num_vfs;
665 int numa_node;
666 int oper_log_mgm_entry_size;
667 u64 regid_promisc_array[MLX4_MAX_PORTS + 1];
668 u64 regid_allmulti_array[MLX4_MAX_PORTS + 1];
669 };
670
671 struct mlx4_eqe {
672 u8 reserved1;
673 u8 type;
674 u8 reserved2;
675 u8 subtype;
676 union {
677 u32 raw[6];
678 struct {
679 __be32 cqn;
680 } __packed comp;
681 struct {
682 u16 reserved1;
683 __be16 token;
684 u32 reserved2;
685 u8 reserved3[3];
686 u8 status;
687 __be64 out_param;
688 } __packed cmd;
689 struct {
690 __be32 qpn;
691 } __packed qp;
692 struct {
693 __be32 srqn;
694 } __packed srq;
695 struct {
696 __be32 cqn;
697 u32 reserved1;
698 u8 reserved2[3];
699 u8 syndrome;
700 } __packed cq_err;
701 struct {
702 u32 reserved1[2];
703 __be32 port;
704 } __packed port_change;
705 struct {
706 #define COMM_CHANNEL_BIT_ARRAY_SIZE 4
707 u32 reserved;
708 u32 bit_vec[COMM_CHANNEL_BIT_ARRAY_SIZE];
709 } __packed comm_channel_arm;
710 struct {
711 u8 port;
712 u8 reserved[3];
713 __be64 mac;
714 } __packed mac_update;
715 struct {
716 __be32 slave_id;
717 } __packed flr_event;
718 struct {
719 __be16 current_temperature;
720 __be16 warning_threshold;
721 } __packed warming;
722 struct {
723 u8 reserved[3];
724 u8 port;
725 union {
726 struct {
727 __be16 mstr_sm_lid;
728 __be16 port_lid;
729 __be32 changed_attr;
730 u8 reserved[3];
731 u8 mstr_sm_sl;
732 __be64 gid_prefix;
733 } __packed port_info;
734 struct {
735 __be32 block_ptr;
736 __be32 tbl_entries_mask;
737 } __packed tbl_change_info;
738 } params;
739 } __packed port_mgmt_change;
740 } event;
741 u8 slave_id;
742 u8 reserved3[2];
743 u8 owner;
744 } __packed;
745
746 struct mlx4_init_port_param {
747 int set_guid0;
748 int set_node_guid;
749 int set_si_guid;
750 u16 mtu;
751 int port_width_cap;
752 u16 vl_cap;
753 u16 max_gid;
754 u16 max_pkey;
755 u64 guid0;
756 u64 node_guid;
757 u64 si_guid;
758 };
759
760 #define mlx4_foreach_port(port, dev, type) \
761 for ((port) = 1; (port) <= (dev)->caps.num_ports; (port)++) \
762 if ((type) == (dev)->caps.port_mask[(port)])
763
764 #define mlx4_foreach_non_ib_transport_port(port, dev) \
765 for ((port) = 1; (port) <= (dev)->caps.num_ports; (port)++) \
766 if (((dev)->caps.port_mask[port] != MLX4_PORT_TYPE_IB))
767
768 #define mlx4_foreach_ib_transport_port(port, dev) \
769 for ((port) = 1; (port) <= (dev)->caps.num_ports; (port)++) \
770 if (((dev)->caps.port_mask[port] == MLX4_PORT_TYPE_IB) || \
771 ((dev)->caps.flags & MLX4_DEV_CAP_FLAG_IBOE))
772
773 #define MLX4_INVALID_SLAVE_ID 0xFF
774
775 void handle_port_mgmt_change_event(struct work_struct *work);
776
777 static inline int mlx4_master_func_num(struct mlx4_dev *dev)
778 {
779 return dev->caps.function;
780 }
781
782 static inline int mlx4_is_master(struct mlx4_dev *dev)
783 {
784 return dev->flags & MLX4_FLAG_MASTER;
785 }
786
787 static inline int mlx4_num_reserved_sqps(struct mlx4_dev *dev)
788 {
789 return dev->phys_caps.base_sqpn + 8 +
790 16 * MLX4_MFUNC_MAX * !!mlx4_is_master(dev);
791 }
792
793 static inline int mlx4_is_qp_reserved(struct mlx4_dev *dev, u32 qpn)
794 {
795 return (qpn < dev->phys_caps.base_sqpn + 8 +
796 16 * MLX4_MFUNC_MAX * !!mlx4_is_master(dev));
797 }
798
799 static inline int mlx4_is_guest_proxy(struct mlx4_dev *dev, int slave, u32 qpn)
800 {
801 int guest_proxy_base = dev->phys_caps.base_proxy_sqpn + slave * 8;
802
803 if (qpn >= guest_proxy_base && qpn < guest_proxy_base + 8)
804 return 1;
805
806 return 0;
807 }
808
809 static inline int mlx4_is_mfunc(struct mlx4_dev *dev)
810 {
811 return dev->flags & (MLX4_FLAG_SLAVE | MLX4_FLAG_MASTER);
812 }
813
814 static inline int mlx4_is_slave(struct mlx4_dev *dev)
815 {
816 return dev->flags & MLX4_FLAG_SLAVE;
817 }
818
819 int mlx4_buf_alloc(struct mlx4_dev *dev, int size, int max_direct,
820 struct mlx4_buf *buf);
821 void mlx4_buf_free(struct mlx4_dev *dev, int size, struct mlx4_buf *buf);
822 static inline void *mlx4_buf_offset(struct mlx4_buf *buf, int offset)
823 {
824 if (BITS_PER_LONG == 64 || buf->nbufs == 1)
825 return buf->direct.buf + offset;
826 else
827 return buf->page_list[offset >> PAGE_SHIFT].buf +
828 (offset & (PAGE_SIZE - 1));
829 }
830
831 int mlx4_pd_alloc(struct mlx4_dev *dev, u32 *pdn);
832 void mlx4_pd_free(struct mlx4_dev *dev, u32 pdn);
833 int mlx4_xrcd_alloc(struct mlx4_dev *dev, u32 *xrcdn);
834 void mlx4_xrcd_free(struct mlx4_dev *dev, u32 xrcdn);
835
836 int mlx4_uar_alloc(struct mlx4_dev *dev, struct mlx4_uar *uar);
837 void mlx4_uar_free(struct mlx4_dev *dev, struct mlx4_uar *uar);
838 int mlx4_bf_alloc(struct mlx4_dev *dev, struct mlx4_bf *bf, int node);
839 void mlx4_bf_free(struct mlx4_dev *dev, struct mlx4_bf *bf);
840
841 int mlx4_mtt_init(struct mlx4_dev *dev, int npages, int page_shift,
842 struct mlx4_mtt *mtt);
843 void mlx4_mtt_cleanup(struct mlx4_dev *dev, struct mlx4_mtt *mtt);
844 u64 mlx4_mtt_addr(struct mlx4_dev *dev, struct mlx4_mtt *mtt);
845
846 int mlx4_mr_alloc(struct mlx4_dev *dev, u32 pd, u64 iova, u64 size, u32 access,
847 int npages, int page_shift, struct mlx4_mr *mr);
848 int mlx4_mr_free(struct mlx4_dev *dev, struct mlx4_mr *mr);
849 int mlx4_mr_enable(struct mlx4_dev *dev, struct mlx4_mr *mr);
850 int mlx4_mw_alloc(struct mlx4_dev *dev, u32 pd, enum mlx4_mw_type type,
851 struct mlx4_mw *mw);
852 void mlx4_mw_free(struct mlx4_dev *dev, struct mlx4_mw *mw);
853 int mlx4_mw_enable(struct mlx4_dev *dev, struct mlx4_mw *mw);
854 int mlx4_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
855 int start_index, int npages, u64 *page_list);
856 int mlx4_buf_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
857 struct mlx4_buf *buf);
858
859 int mlx4_db_alloc(struct mlx4_dev *dev, struct mlx4_db *db, int order);
860 void mlx4_db_free(struct mlx4_dev *dev, struct mlx4_db *db);
861
862 int mlx4_alloc_hwq_res(struct mlx4_dev *dev, struct mlx4_hwq_resources *wqres,
863 int size, int max_direct);
864 void mlx4_free_hwq_res(struct mlx4_dev *mdev, struct mlx4_hwq_resources *wqres,
865 int size);
866
867 int mlx4_cq_alloc(struct mlx4_dev *dev, int nent, struct mlx4_mtt *mtt,
868 struct mlx4_uar *uar, u64 db_rec, struct mlx4_cq *cq,
869 unsigned vector, int collapsed, int timestamp_en);
870 void mlx4_cq_free(struct mlx4_dev *dev, struct mlx4_cq *cq);
871
872 int mlx4_qp_reserve_range(struct mlx4_dev *dev, int cnt, int align, int *base);
873 void mlx4_qp_release_range(struct mlx4_dev *dev, int base_qpn, int cnt);
874
875 int mlx4_qp_alloc(struct mlx4_dev *dev, int qpn, struct mlx4_qp *qp);
876 void mlx4_qp_free(struct mlx4_dev *dev, struct mlx4_qp *qp);
877
878 int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, u32 cqn, u16 xrcdn,
879 struct mlx4_mtt *mtt, u64 db_rec, struct mlx4_srq *srq);
880 void mlx4_srq_free(struct mlx4_dev *dev, struct mlx4_srq *srq);
881 int mlx4_srq_arm(struct mlx4_dev *dev, struct mlx4_srq *srq, int limit_watermark);
882 int mlx4_srq_query(struct mlx4_dev *dev, struct mlx4_srq *srq, int *limit_watermark);
883
884 int mlx4_INIT_PORT(struct mlx4_dev *dev, int port);
885 int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port);
886
887 int mlx4_unicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
888 int block_mcast_loopback, enum mlx4_protocol prot);
889 int mlx4_unicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
890 enum mlx4_protocol prot);
891 int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
892 u8 port, int block_mcast_loopback,
893 enum mlx4_protocol protocol, u64 *reg_id);
894 int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
895 enum mlx4_protocol protocol, u64 reg_id);
896
897 enum {
898 MLX4_DOMAIN_UVERBS = 0x1000,
899 MLX4_DOMAIN_ETHTOOL = 0x2000,
900 MLX4_DOMAIN_RFS = 0x3000,
901 MLX4_DOMAIN_NIC = 0x5000,
902 };
903
904 enum mlx4_net_trans_rule_id {
905 MLX4_NET_TRANS_RULE_ID_ETH = 0,
906 MLX4_NET_TRANS_RULE_ID_IB,
907 MLX4_NET_TRANS_RULE_ID_IPV6,
908 MLX4_NET_TRANS_RULE_ID_IPV4,
909 MLX4_NET_TRANS_RULE_ID_TCP,
910 MLX4_NET_TRANS_RULE_ID_UDP,
911 MLX4_NET_TRANS_RULE_NUM, /* should be last */
912 };
913
914 extern const u16 __sw_id_hw[];
915
916 static inline int map_hw_to_sw_id(u16 header_id)
917 {
918
919 int i;
920 for (i = 0; i < MLX4_NET_TRANS_RULE_NUM; i++) {
921 if (header_id == __sw_id_hw[i])
922 return i;
923 }
924 return -EINVAL;
925 }
926
927 enum mlx4_net_trans_promisc_mode {
928 MLX4_FS_REGULAR = 1,
929 MLX4_FS_ALL_DEFAULT,
930 MLX4_FS_MC_DEFAULT,
931 MLX4_FS_UC_SNIFFER,
932 MLX4_FS_MC_SNIFFER,
933 MLX4_FS_MODE_NUM, /* should be last */
934 };
935
936 struct mlx4_spec_eth {
937 u8 dst_mac[ETH_ALEN];
938 u8 dst_mac_msk[ETH_ALEN];
939 u8 src_mac[ETH_ALEN];
940 u8 src_mac_msk[ETH_ALEN];
941 u8 ether_type_enable;
942 __be16 ether_type;
943 __be16 vlan_id_msk;
944 __be16 vlan_id;
945 };
946
947 struct mlx4_spec_tcp_udp {
948 __be16 dst_port;
949 __be16 dst_port_msk;
950 __be16 src_port;
951 __be16 src_port_msk;
952 };
953
954 struct mlx4_spec_ipv4 {
955 __be32 dst_ip;
956 __be32 dst_ip_msk;
957 __be32 src_ip;
958 __be32 src_ip_msk;
959 };
960
961 struct mlx4_spec_ib {
962 __be32 l3_qpn;
963 __be32 qpn_msk;
964 u8 dst_gid[16];
965 u8 dst_gid_msk[16];
966 };
967
968 struct mlx4_spec_list {
969 struct list_head list;
970 enum mlx4_net_trans_rule_id id;
971 union {
972 struct mlx4_spec_eth eth;
973 struct mlx4_spec_ib ib;
974 struct mlx4_spec_ipv4 ipv4;
975 struct mlx4_spec_tcp_udp tcp_udp;
976 };
977 };
978
979 enum mlx4_net_trans_hw_rule_queue {
980 MLX4_NET_TRANS_Q_FIFO,
981 MLX4_NET_TRANS_Q_LIFO,
982 };
983
984 struct mlx4_net_trans_rule {
985 struct list_head list;
986 enum mlx4_net_trans_hw_rule_queue queue_mode;
987 bool exclusive;
988 bool allow_loopback;
989 enum mlx4_net_trans_promisc_mode promisc_mode;
990 u8 port;
991 u16 priority;
992 u32 qpn;
993 };
994
995 struct mlx4_net_trans_rule_hw_ctrl {
996 __be16 prio;
997 u8 type;
998 u8 flags;
999 u8 rsvd1;
1000 u8 funcid;
1001 u8 vep;
1002 u8 port;
1003 __be32 qpn;
1004 __be32 rsvd2;
1005 };
1006
1007 struct mlx4_net_trans_rule_hw_ib {
1008 u8 size;
1009 u8 rsvd1;
1010 __be16 id;
1011 u32 rsvd2;
1012 __be32 l3_qpn;
1013 __be32 qpn_mask;
1014 u8 dst_gid[16];
1015 u8 dst_gid_msk[16];
1016 } __packed;
1017
1018 struct mlx4_net_trans_rule_hw_eth {
1019 u8 size;
1020 u8 rsvd;
1021 __be16 id;
1022 u8 rsvd1[6];
1023 u8 dst_mac[6];
1024 u16 rsvd2;
1025 u8 dst_mac_msk[6];
1026 u16 rsvd3;
1027 u8 src_mac[6];
1028 u16 rsvd4;
1029 u8 src_mac_msk[6];
1030 u8 rsvd5;
1031 u8 ether_type_enable;
1032 __be16 ether_type;
1033 __be16 vlan_tag_msk;
1034 __be16 vlan_tag;
1035 } __packed;
1036
1037 struct mlx4_net_trans_rule_hw_tcp_udp {
1038 u8 size;
1039 u8 rsvd;
1040 __be16 id;
1041 __be16 rsvd1[3];
1042 __be16 dst_port;
1043 __be16 rsvd2;
1044 __be16 dst_port_msk;
1045 __be16 rsvd3;
1046 __be16 src_port;
1047 __be16 rsvd4;
1048 __be16 src_port_msk;
1049 } __packed;
1050
1051 struct mlx4_net_trans_rule_hw_ipv4 {
1052 u8 size;
1053 u8 rsvd;
1054 __be16 id;
1055 __be32 rsvd1;
1056 __be32 dst_ip;
1057 __be32 dst_ip_msk;
1058 __be32 src_ip;
1059 __be32 src_ip_msk;
1060 } __packed;
1061
1062 struct _rule_hw {
1063 union {
1064 struct {
1065 u8 size;
1066 u8 rsvd;
1067 __be16 id;
1068 };
1069 struct mlx4_net_trans_rule_hw_eth eth;
1070 struct mlx4_net_trans_rule_hw_ib ib;
1071 struct mlx4_net_trans_rule_hw_ipv4 ipv4;
1072 struct mlx4_net_trans_rule_hw_tcp_udp tcp_udp;
1073 };
1074 };
1075
1076 int mlx4_flow_steer_promisc_add(struct mlx4_dev *dev, u8 port, u32 qpn,
1077 enum mlx4_net_trans_promisc_mode mode);
1078 int mlx4_flow_steer_promisc_remove(struct mlx4_dev *dev, u8 port,
1079 enum mlx4_net_trans_promisc_mode mode);
1080 int mlx4_multicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port);
1081 int mlx4_multicast_promisc_remove(struct mlx4_dev *dev, u32 qpn, u8 port);
1082 int mlx4_unicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port);
1083 int mlx4_unicast_promisc_remove(struct mlx4_dev *dev, u32 qpn, u8 port);
1084 int mlx4_SET_MCAST_FLTR(struct mlx4_dev *dev, u8 port, u64 mac, u64 clear, u8 mode);
1085
1086 int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac);
1087 void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, u64 mac);
1088 int mlx4_get_base_qpn(struct mlx4_dev *dev, u8 port);
1089 int __mlx4_replace_mac(struct mlx4_dev *dev, u8 port, int qpn, u64 new_mac);
1090 void mlx4_set_stats_bitmap(struct mlx4_dev *dev, u64 *stats_bitmap);
1091 int mlx4_SET_PORT_general(struct mlx4_dev *dev, u8 port, int mtu,
1092 u8 pptx, u8 pfctx, u8 pprx, u8 pfcrx);
1093 int mlx4_SET_PORT_qpn_calc(struct mlx4_dev *dev, u8 port, u32 base_qpn,
1094 u8 promisc);
1095 int mlx4_SET_PORT_PRIO2TC(struct mlx4_dev *dev, u8 port, u8 *prio2tc);
1096 int mlx4_SET_PORT_SCHEDULER(struct mlx4_dev *dev, u8 port, u8 *tc_tx_bw,
1097 u8 *pg, u16 *ratelimit);
1098 int mlx4_find_cached_vlan(struct mlx4_dev *dev, u8 port, u16 vid, int *idx);
1099 int mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan, int *index);
1100 void mlx4_unregister_vlan(struct mlx4_dev *dev, u8 port, u16 vlan);
1101
1102 int mlx4_map_phys_fmr(struct mlx4_dev *dev, struct mlx4_fmr *fmr, u64 *page_list,
1103 int npages, u64 iova, u32 *lkey, u32 *rkey);
1104 int mlx4_fmr_alloc(struct mlx4_dev *dev, u32 pd, u32 access, int max_pages,
1105 int max_maps, u8 page_shift, struct mlx4_fmr *fmr);
1106 int mlx4_fmr_enable(struct mlx4_dev *dev, struct mlx4_fmr *fmr);
1107 void mlx4_fmr_unmap(struct mlx4_dev *dev, struct mlx4_fmr *fmr,
1108 u32 *lkey, u32 *rkey);
1109 int mlx4_fmr_free(struct mlx4_dev *dev, struct mlx4_fmr *fmr);
1110 int mlx4_SYNC_TPT(struct mlx4_dev *dev);
1111 int mlx4_test_interrupts(struct mlx4_dev *dev);
1112 int mlx4_assign_eq(struct mlx4_dev *dev, char *name, struct cpu_rmap *rmap,
1113 int *vector);
1114 void mlx4_release_eq(struct mlx4_dev *dev, int vec);
1115
1116 int mlx4_wol_read(struct mlx4_dev *dev, u64 *config, int port);
1117 int mlx4_wol_write(struct mlx4_dev *dev, u64 config, int port);
1118
1119 int mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx);
1120 void mlx4_counter_free(struct mlx4_dev *dev, u32 idx);
1121
1122 int mlx4_flow_attach(struct mlx4_dev *dev,
1123 struct mlx4_net_trans_rule *rule, u64 *reg_id);
1124 int mlx4_flow_detach(struct mlx4_dev *dev, u64 reg_id);
1125 int mlx4_map_sw_to_hw_steering_mode(struct mlx4_dev *dev,
1126 enum mlx4_net_trans_promisc_mode flow_type);
1127 int mlx4_map_sw_to_hw_steering_id(struct mlx4_dev *dev,
1128 enum mlx4_net_trans_rule_id id);
1129 int mlx4_hw_rule_sz(struct mlx4_dev *dev, enum mlx4_net_trans_rule_id id);
1130
1131 void mlx4_sync_pkey_table(struct mlx4_dev *dev, int slave, int port,
1132 int i, int val);
1133
1134 int mlx4_get_parav_qkey(struct mlx4_dev *dev, u32 qpn, u32 *qkey);
1135
1136 int mlx4_is_slave_active(struct mlx4_dev *dev, int slave);
1137 int mlx4_gen_pkey_eqe(struct mlx4_dev *dev, int slave, u8 port);
1138 int mlx4_gen_guid_change_eqe(struct mlx4_dev *dev, int slave, u8 port);
1139 int mlx4_gen_slaves_port_mgt_ev(struct mlx4_dev *dev, u8 port, int attr);
1140 int mlx4_gen_port_state_change_eqe(struct mlx4_dev *dev, int slave, u8 port, u8 port_subtype_change);
1141 enum slave_port_state mlx4_get_slave_port_state(struct mlx4_dev *dev, int slave, u8 port);
1142 int set_and_calc_slave_port_state(struct mlx4_dev *dev, int slave, u8 port, int event, enum slave_port_gen_event *gen_event);
1143
1144 void mlx4_put_slave_node_guid(struct mlx4_dev *dev, int slave, __be64 guid);
1145 __be64 mlx4_get_slave_node_guid(struct mlx4_dev *dev, int slave);
1146
1147 cycle_t mlx4_read_clock(struct mlx4_dev *dev);
1148
1149 #endif /* MLX4_DEVICE_H */
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