1 /*
2 * Copyright (c) 2006, 2007 Cisco Systems. All rights reserved.
3 * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved.
4 *
5 * This software is available to you under a choice of one of two
6 * licenses. You may choose to be licensed under the terms of the GNU
7 * General Public License (GPL) Version 2, available from the file
8 * COPYING in the main directory of this source tree, or the
9 * OpenIB.org BSD license below:
10 *
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
13 * conditions are met:
14 *
15 * - Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
17 * disclaimer.
18 *
19 * - Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials
22 * provided with the distribution.
23 *
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
31 * SOFTWARE.
32 */
33
34 #ifndef MLX4_IB_H
35 #define MLX4_IB_H
36
37 #include <linux/compiler.h>
38 #include <linux/list.h>
39 #include <linux/mutex.h>
40 #include <linux/idr.h>
41 #include <linux/rbtree.h>
42 #include <linux/notifier.h>
43
44 #include <asm/atomic64.h>
45
46 #include <rdma/ib_verbs.h>
47 #include <rdma/ib_umem.h>
48 #include <rdma/ib_mad.h>
49 #include <rdma/ib_sa.h>
50
51 #include <dev/mlx4/device.h>
52 #include <dev/mlx4/doorbell.h>
53
54 #define MLX4_IB_DRV_NAME "mlx4_ib"
55
56 #ifdef pr_fmt
57 #undef pr_fmt
58 #endif
59 #define pr_fmt(fmt) "<" MLX4_IB_DRV_NAME "> %s: " fmt, __func__
60
61 #define mlx4_ib_warn(ibdev, format, arg...) \
62 dev_warn((ibdev)->dma_device, MLX4_IB_DRV_NAME ": " format, ## arg)
63
64 enum {
65 MLX4_IB_SQ_MIN_WQE_SHIFT = 6,
66 MLX4_IB_MAX_HEADROOM = 2048
67 };
68
69 #define MLX4_IB_SQ_HEADROOM(shift) ((MLX4_IB_MAX_HEADROOM >> (shift)) + 1)
70 #define MLX4_IB_SQ_MAX_SPARE (MLX4_IB_SQ_HEADROOM(MLX4_IB_SQ_MIN_WQE_SHIFT))
71
72 /*module param to indicate if SM assigns the alias_GUID*/
73 extern int mlx4_ib_sm_guid_assign;
74 extern struct proc_dir_entry *mlx4_mrs_dir_entry;
75
76 #define MLX4_IB_UC_STEER_QPN_ALIGN 1
77 #define MLX4_IB_UC_MAX_NUM_QPS 256
78
79 enum hw_bar_type {
80 HW_BAR_BF,
81 HW_BAR_DB,
82 HW_BAR_CLOCK,
83 HW_BAR_COUNT
84 };
85
86 struct mlx4_ib_ucontext {
87 struct ib_ucontext ibucontext;
88 struct mlx4_uar uar;
89 struct list_head db_page_list;
90 struct mutex db_page_mutex;
91 };
92
93 struct mlx4_ib_pd {
94 struct ib_pd ibpd;
95 u32 pdn;
96 };
97
98 struct mlx4_ib_xrcd {
99 struct ib_xrcd ibxrcd;
100 u32 xrcdn;
101 struct ib_pd *pd;
102 struct ib_cq *cq;
103 };
104
105 struct mlx4_ib_cq_buf {
106 struct mlx4_buf buf;
107 struct mlx4_mtt mtt;
108 int entry_size;
109 };
110
111 struct mlx4_ib_cq_resize {
112 struct mlx4_ib_cq_buf buf;
113 int cqe;
114 };
115
116 struct mlx4_ib_cq {
117 struct ib_cq ibcq;
118 struct mlx4_cq mcq;
119 struct mlx4_ib_cq_buf buf;
120 struct mlx4_ib_cq_resize *resize_buf;
121 struct mlx4_db db;
122 spinlock_t lock;
123 struct mutex resize_mutex;
124 struct ib_umem *umem;
125 struct ib_umem *resize_umem;
126 int create_flags;
127 /* List of qps that it serves.*/
128 struct list_head send_qp_list;
129 struct list_head recv_qp_list;
130 };
131
132 #define MLX4_MR_PAGES_ALIGN 0x40
133
134 struct mlx4_ib_mr {
135 struct ib_mr ibmr;
136 __be64 *pages;
137 dma_addr_t page_map;
138 u32 npages;
139 u32 max_pages;
140 struct mlx4_mr mmr;
141 struct ib_umem *umem;
142 size_t page_map_size;
143 };
144
145 struct mlx4_ib_mw {
146 struct ib_mw ibmw;
147 struct mlx4_mw mmw;
148 };
149
150 struct mlx4_ib_fmr {
151 struct ib_fmr ibfmr;
152 struct mlx4_fmr mfmr;
153 };
154
155 #define MAX_REGS_PER_FLOW 2
156
157 struct mlx4_flow_reg_id {
158 u64 id;
159 u64 mirror;
160 };
161
162 struct mlx4_ib_flow {
163 struct ib_flow ibflow;
164 /* translating DMFS verbs sniffer rule to FW API requires two reg IDs */
165 struct mlx4_flow_reg_id reg_id[MAX_REGS_PER_FLOW];
166 };
167
168 struct mlx4_ib_wq {
169 u64 *wrid;
170 spinlock_t lock;
171 int wqe_cnt;
172 int max_post;
173 int max_gs;
174 int offset;
175 int wqe_shift;
176 unsigned head;
177 unsigned tail;
178 };
179
180 enum {
181 MLX4_IB_QP_CREATE_ROCE_V2_GSI = IB_QP_CREATE_RESERVED_START
182 };
183
184 enum mlx4_ib_qp_flags {
185 MLX4_IB_QP_LSO = IB_QP_CREATE_IPOIB_UD_LSO,
186 MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK = IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK,
187 MLX4_IB_QP_NETIF = IB_QP_CREATE_NETIF_QP,
188 MLX4_IB_QP_CREATE_USE_GFP_NOIO = IB_QP_CREATE_USE_GFP_NOIO,
189
190 /* Mellanox specific flags start from IB_QP_CREATE_RESERVED_START */
191 MLX4_IB_ROCE_V2_GSI_QP = MLX4_IB_QP_CREATE_ROCE_V2_GSI,
192 MLX4_IB_SRIOV_TUNNEL_QP = 1 << 30,
193 MLX4_IB_SRIOV_SQP = 1U << 31,
194 };
195
196 struct mlx4_ib_gid_entry {
197 struct list_head list;
198 union ib_gid gid;
199 int added;
200 u8 port;
201 };
202
203 enum mlx4_ib_qp_type {
204 /*
205 * IB_QPT_SMI and IB_QPT_GSI have to be the first two entries
206 * here (and in that order) since the MAD layer uses them as
207 * indices into a 2-entry table.
208 */
209 MLX4_IB_QPT_SMI = IB_QPT_SMI,
210 MLX4_IB_QPT_GSI = IB_QPT_GSI,
211
212 MLX4_IB_QPT_RC = IB_QPT_RC,
213 MLX4_IB_QPT_UC = IB_QPT_UC,
214 MLX4_IB_QPT_UD = IB_QPT_UD,
215 MLX4_IB_QPT_RAW_IPV6 = IB_QPT_RAW_IPV6,
216 MLX4_IB_QPT_RAW_ETHERTYPE = IB_QPT_RAW_ETHERTYPE,
217 MLX4_IB_QPT_RAW_PACKET = IB_QPT_RAW_PACKET,
218 MLX4_IB_QPT_XRC_INI = IB_QPT_XRC_INI,
219 MLX4_IB_QPT_XRC_TGT = IB_QPT_XRC_TGT,
220
221 MLX4_IB_QPT_PROXY_SMI_OWNER = 1 << 16,
222 MLX4_IB_QPT_PROXY_SMI = 1 << 17,
223 MLX4_IB_QPT_PROXY_GSI = 1 << 18,
224 MLX4_IB_QPT_TUN_SMI_OWNER = 1 << 19,
225 MLX4_IB_QPT_TUN_SMI = 1 << 20,
226 MLX4_IB_QPT_TUN_GSI = 1 << 21,
227 };
228
229 #define MLX4_IB_QPT_ANY_SRIOV (MLX4_IB_QPT_PROXY_SMI_OWNER | \
230 MLX4_IB_QPT_PROXY_SMI | MLX4_IB_QPT_PROXY_GSI | MLX4_IB_QPT_TUN_SMI_OWNER | \
231 MLX4_IB_QPT_TUN_SMI | MLX4_IB_QPT_TUN_GSI)
232
233 enum mlx4_ib_mad_ifc_flags {
234 MLX4_MAD_IFC_IGNORE_MKEY = 1,
235 MLX4_MAD_IFC_IGNORE_BKEY = 2,
236 MLX4_MAD_IFC_IGNORE_KEYS = (MLX4_MAD_IFC_IGNORE_MKEY |
237 MLX4_MAD_IFC_IGNORE_BKEY),
238 MLX4_MAD_IFC_NET_VIEW = 4,
239 };
240
241 enum {
242 MLX4_NUM_TUNNEL_BUFS = 256,
243 };
244
245 struct mlx4_ib_tunnel_header {
246 struct mlx4_av av;
247 __be32 remote_qpn;
248 __be32 qkey;
249 __be16 vlan;
250 u8 mac[6];
251 __be16 pkey_index;
252 u8 reserved[6];
253 };
254
255 struct mlx4_ib_buf {
256 void *addr;
257 dma_addr_t map;
258 };
259
260 struct mlx4_rcv_tunnel_hdr {
261 __be32 flags_src_qp; /* flags[6:5] is defined for VLANs:
262 * 0x0 - no vlan was in the packet
263 * 0x01 - C-VLAN was in the packet */
264 u8 g_ml_path; /* gid bit stands for ipv6/4 header in RoCE */
265 u8 reserved;
266 __be16 pkey_index;
267 __be16 sl_vid;
268 __be16 slid_mac_47_32;
269 __be32 mac_31_0;
270 };
271
272 struct mlx4_ib_proxy_sqp_hdr {
273 struct ib_grh grh;
274 struct mlx4_rcv_tunnel_hdr tun;
275 } __packed;
276
277 struct mlx4_roce_smac_vlan_info {
278 u64 smac;
279 int smac_index;
280 int smac_port;
281 u64 candidate_smac;
282 int candidate_smac_index;
283 int candidate_smac_port;
284 u16 vid;
285 int vlan_index;
286 int vlan_port;
287 u16 candidate_vid;
288 int candidate_vlan_index;
289 int candidate_vlan_port;
290 int update_vid;
291 };
292
293 struct mlx4_ib_qp {
294 struct ib_qp ibqp;
295 struct mlx4_qp mqp;
296 struct mlx4_buf buf;
297
298 struct mlx4_db db;
299 struct mlx4_ib_wq rq;
300
301 u32 doorbell_qpn;
302 __be32 sq_signal_bits;
303 unsigned sq_next_wqe;
304 int sq_max_wqes_per_wr;
305 int sq_spare_wqes;
306 struct mlx4_ib_wq sq;
307
308 enum mlx4_ib_qp_type mlx4_ib_qp_type;
309 struct ib_umem *umem;
310 struct mlx4_mtt mtt;
311 int buf_size;
312 struct mutex mutex;
313 u16 xrcdn;
314 u32 flags;
315 u8 port;
316 u8 alt_port;
317 u8 atomic_rd_en;
318 u8 resp_depth;
319 u8 sq_no_prefetch;
320 u8 state;
321 int mlx_type;
322 struct list_head gid_list;
323 struct list_head steering_rules;
324 struct mlx4_ib_buf *sqp_proxy_rcv;
325 struct mlx4_roce_smac_vlan_info pri;
326 struct mlx4_roce_smac_vlan_info alt;
327 u64 reg_id;
328 struct list_head qps_list;
329 struct list_head cq_recv_list;
330 struct list_head cq_send_list;
331 struct counter_index *counter_index;
332 };
333
334 struct mlx4_ib_srq {
335 struct ib_srq ibsrq;
336 struct mlx4_srq msrq;
337 struct mlx4_buf buf;
338 struct mlx4_db db;
339 u64 *wrid;
340 spinlock_t lock;
341 int head;
342 int tail;
343 u16 wqe_ctr;
344 struct ib_umem *umem;
345 struct mlx4_mtt mtt;
346 struct mutex mutex;
347 };
348
349 struct mlx4_ib_ah {
350 struct ib_ah ibah;
351 union mlx4_ext_av av;
352 };
353
354 /****************************************/
355 /* alias guid support */
356 /****************************************/
357 #define NUM_PORT_ALIAS_GUID 2
358 #define NUM_ALIAS_GUID_IN_REC 8
359 #define NUM_ALIAS_GUID_REC_IN_PORT 16
360 #define GUID_REC_SIZE 8
361 #define NUM_ALIAS_GUID_PER_PORT 128
362 #define MLX4_NOT_SET_GUID (0x00LL)
363 #define MLX4_GUID_FOR_DELETE_VAL (~(0x00LL))
364
365 enum mlx4_guid_alias_rec_status {
366 MLX4_GUID_INFO_STATUS_IDLE,
367 MLX4_GUID_INFO_STATUS_SET,
368 };
369
370 #define GUID_STATE_NEED_PORT_INIT 0x01
371
372 enum mlx4_guid_alias_rec_method {
373 MLX4_GUID_INFO_RECORD_SET = IB_MGMT_METHOD_SET,
374 MLX4_GUID_INFO_RECORD_DELETE = IB_SA_METHOD_DELETE,
375 };
376
377 struct mlx4_sriov_alias_guid_info_rec_det {
378 u8 all_recs[GUID_REC_SIZE * NUM_ALIAS_GUID_IN_REC];
379 ib_sa_comp_mask guid_indexes; /*indicates what from the 8 records are valid*/
380 enum mlx4_guid_alias_rec_status status; /*indicates the administraively status of the record.*/
381 unsigned int guids_retry_schedule[NUM_ALIAS_GUID_IN_REC];
382 u64 time_to_run;
383 };
384
385 struct mlx4_sriov_alias_guid_port_rec_det {
386 struct mlx4_sriov_alias_guid_info_rec_det all_rec_per_port[NUM_ALIAS_GUID_REC_IN_PORT];
387 struct workqueue_struct *wq;
388 struct delayed_work alias_guid_work;
389 u8 port;
390 u32 state_flags;
391 struct mlx4_sriov_alias_guid *parent;
392 struct list_head cb_list;
393 };
394
395 struct mlx4_sriov_alias_guid {
396 struct mlx4_sriov_alias_guid_port_rec_det ports_guid[MLX4_MAX_PORTS];
397 spinlock_t ag_work_lock;
398 struct ib_sa_client *sa_client;
399 };
400
401 struct mlx4_ib_demux_work {
402 struct work_struct work;
403 struct mlx4_ib_dev *dev;
404 int slave;
405 int do_init;
406 u8 port;
407
408 };
409
410 struct mlx4_ib_tun_tx_buf {
411 struct mlx4_ib_buf buf;
412 struct ib_ah *ah;
413 };
414
415 struct mlx4_ib_demux_pv_qp {
416 struct ib_qp *qp;
417 enum ib_qp_type proxy_qpt;
418 struct mlx4_ib_buf *ring;
419 struct mlx4_ib_tun_tx_buf *tx_ring;
420 spinlock_t tx_lock;
421 unsigned tx_ix_head;
422 unsigned tx_ix_tail;
423 };
424
425 enum mlx4_ib_demux_pv_state {
426 DEMUX_PV_STATE_DOWN,
427 DEMUX_PV_STATE_STARTING,
428 DEMUX_PV_STATE_ACTIVE,
429 DEMUX_PV_STATE_DOWNING,
430 };
431
432 struct mlx4_ib_demux_pv_ctx {
433 int port;
434 int slave;
435 enum mlx4_ib_demux_pv_state state;
436 int has_smi;
437 struct ib_device *ib_dev;
438 struct ib_cq *cq;
439 struct ib_pd *pd;
440 struct work_struct work;
441 struct workqueue_struct *wq;
442 struct mlx4_ib_demux_pv_qp qp[2];
443 };
444
445 struct mlx4_ib_demux_ctx {
446 struct ib_device *ib_dev;
447 int port;
448 struct workqueue_struct *wq;
449 struct workqueue_struct *ud_wq;
450 spinlock_t ud_lock;
451 atomic64_t subnet_prefix;
452 __be64 guid_cache[128];
453 struct mlx4_ib_dev *dev;
454 /* the following lock protects both mcg_table and mcg_mgid0_list */
455 struct mutex mcg_table_lock;
456 struct rb_root mcg_table;
457 struct list_head mcg_mgid0_list;
458 struct workqueue_struct *mcg_wq;
459 struct mlx4_ib_demux_pv_ctx **tun;
460 atomic_t tid;
461 int flushing; /* flushing the work queue */
462 };
463
464 struct mlx4_ib_sriov {
465 struct mlx4_ib_demux_ctx demux[MLX4_MAX_PORTS];
466 struct mlx4_ib_demux_pv_ctx *sqps[MLX4_MAX_PORTS];
467 /* when using this spinlock you should use "irq" because
468 * it may be called from interrupt context.*/
469 spinlock_t going_down_lock;
470 int is_going_down;
471
472 struct mlx4_sriov_alias_guid alias_guid;
473
474 /* CM paravirtualization fields */
475 struct list_head cm_list;
476 spinlock_t id_map_lock;
477 struct rb_root sl_id_map;
478 struct idr pv_id_table;
479 };
480
481 struct gid_cache_context {
482 int real_index;
483 int refcount;
484 };
485
486 struct gid_entry {
487 union ib_gid gid;
488 enum ib_gid_type gid_type;
489 struct gid_cache_context *ctx;
490 };
491
492 struct mlx4_port_gid_table {
493 struct gid_entry gids[MLX4_MAX_PORT_GIDS];
494 };
495
496 struct mlx4_ib_iboe {
497 spinlock_t lock;
498 if_t netdevs[MLX4_MAX_PORTS];
499 atomic64_t mac[MLX4_MAX_PORTS];
500 struct notifier_block nb;
501 struct mlx4_port_gid_table gids[MLX4_MAX_PORTS];
502 };
503
504 struct pkey_mgt {
505 u8 virt2phys_pkey[MLX4_MFUNC_MAX][MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS];
506 u16 phys_pkey_cache[MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS];
507 struct list_head pkey_port_list[MLX4_MFUNC_MAX];
508 struct kobject *device_parent[MLX4_MFUNC_MAX];
509 };
510
511 struct mlx4_ib_iov_sysfs_attr {
512 void *ctx;
513 struct kobject *kobj;
514 unsigned long data;
515 u32 entry_num;
516 char name[15];
517 struct device_attribute dentry;
518 struct device *dev;
519 };
520
521 struct mlx4_ib_iov_sysfs_attr_ar {
522 struct mlx4_ib_iov_sysfs_attr dentries[3 * NUM_ALIAS_GUID_PER_PORT + 1];
523 };
524
525 struct mlx4_ib_iov_port {
526 char name[100];
527 u8 num;
528 struct mlx4_ib_dev *dev;
529 struct list_head list;
530 struct mlx4_ib_iov_sysfs_attr_ar *dentr_ar;
531 struct ib_port_attr attr;
532 struct kobject *cur_port;
533 struct kobject *admin_alias_parent;
534 struct kobject *gids_parent;
535 struct kobject *pkeys_parent;
536 struct kobject *mcgs_parent;
537 struct mlx4_ib_iov_sysfs_attr mcg_dentry;
538 };
539
540 struct counter_index {
541 struct list_head list;
542 u32 index;
543 u8 allocated;
544 };
545
546 struct mlx4_ib_counters {
547 struct list_head counters_list;
548 struct mutex mutex; /* mutex for accessing counters list */
549 u32 default_counter;
550 };
551
552 #define MLX4_DIAG_COUNTERS_TYPES 2
553
554 struct mlx4_ib_diag_counters {
555 const char **name;
556 u32 *offset;
557 u32 num_counters;
558 };
559
560 struct mlx4_ib_dev {
561 struct ib_device ib_dev;
562 struct mlx4_dev *dev;
563 int num_ports;
564 void __iomem *uar_map;
565
566 struct mlx4_uar priv_uar;
567 u32 priv_pdn;
568 MLX4_DECLARE_DOORBELL_LOCK(uar_lock);
569
570 struct ib_mad_agent *send_agent[MLX4_MAX_PORTS][2];
571 struct ib_ah *sm_ah[MLX4_MAX_PORTS];
572 spinlock_t sm_lock;
573 atomic64_t sl2vl[MLX4_MAX_PORTS];
574 struct mlx4_ib_sriov sriov;
575
576 struct mutex cap_mask_mutex;
577 bool ib_active;
578 struct mlx4_ib_iboe iboe;
579 struct mlx4_ib_counters counters_table[MLX4_MAX_PORTS];
580 int *eq_table;
581 struct kobject *iov_parent;
582 struct kobject *ports_parent;
583 struct kobject *dev_ports_parent[MLX4_MFUNC_MAX];
584 struct mlx4_ib_iov_port iov_ports[MLX4_MAX_PORTS];
585 struct pkey_mgt pkeys;
586 unsigned long *ib_uc_qpns_bitmap;
587 int steer_qpn_count;
588 int steer_qpn_base;
589 int steering_support;
590 struct mlx4_ib_qp *qp1_proxy[MLX4_MAX_PORTS];
591 /* lock when destroying qp1_proxy and getting netdev events */
592 struct mutex qp1_proxy_lock[MLX4_MAX_PORTS];
593 u8 bond_next_port;
594 /* protect resources needed as part of reset flow */
595 spinlock_t reset_flow_resource_lock;
596 struct list_head qp_list;
597 struct mlx4_ib_diag_counters diag_counters[MLX4_DIAG_COUNTERS_TYPES];
598 };
599
600 struct ib_event_work {
601 struct work_struct work;
602 struct mlx4_ib_dev *ib_dev;
603 struct mlx4_eqe ib_eqe;
604 int port;
605 };
606
607 struct mlx4_ib_qp_tunnel_init_attr {
608 struct ib_qp_init_attr init_attr;
609 int slave;
610 enum ib_qp_type proxy_qp_type;
611 u8 port;
612 };
613
614 struct mlx4_uverbs_ex_query_device {
615 __u32 comp_mask;
616 __u32 reserved;
617 };
618
619 enum query_device_resp_mask {
620 QUERY_DEVICE_RESP_MASK_TIMESTAMP = 1UL << 0,
621 };
622
623 struct mlx4_uverbs_ex_query_device_resp {
624 __u32 comp_mask;
625 __u32 response_length;
626 __u64 hca_core_clock_offset;
627 };
628
to_mdev(struct ib_device * ibdev)629 static inline struct mlx4_ib_dev *to_mdev(struct ib_device *ibdev)
630 {
631 return container_of(ibdev, struct mlx4_ib_dev, ib_dev);
632 }
633
to_mucontext(struct ib_ucontext * ibucontext)634 static inline struct mlx4_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext)
635 {
636 return container_of(ibucontext, struct mlx4_ib_ucontext, ibucontext);
637 }
638
to_mpd(struct ib_pd * ibpd)639 static inline struct mlx4_ib_pd *to_mpd(struct ib_pd *ibpd)
640 {
641 return container_of(ibpd, struct mlx4_ib_pd, ibpd);
642 }
643
to_mxrcd(struct ib_xrcd * ibxrcd)644 static inline struct mlx4_ib_xrcd *to_mxrcd(struct ib_xrcd *ibxrcd)
645 {
646 return container_of(ibxrcd, struct mlx4_ib_xrcd, ibxrcd);
647 }
648
to_mcq(struct ib_cq * ibcq)649 static inline struct mlx4_ib_cq *to_mcq(struct ib_cq *ibcq)
650 {
651 return container_of(ibcq, struct mlx4_ib_cq, ibcq);
652 }
653
to_mibcq(struct mlx4_cq * mcq)654 static inline struct mlx4_ib_cq *to_mibcq(struct mlx4_cq *mcq)
655 {
656 return container_of(mcq, struct mlx4_ib_cq, mcq);
657 }
658
to_mmr(struct ib_mr * ibmr)659 static inline struct mlx4_ib_mr *to_mmr(struct ib_mr *ibmr)
660 {
661 return container_of(ibmr, struct mlx4_ib_mr, ibmr);
662 }
663
to_mmw(struct ib_mw * ibmw)664 static inline struct mlx4_ib_mw *to_mmw(struct ib_mw *ibmw)
665 {
666 return container_of(ibmw, struct mlx4_ib_mw, ibmw);
667 }
668
to_mfmr(struct ib_fmr * ibfmr)669 static inline struct mlx4_ib_fmr *to_mfmr(struct ib_fmr *ibfmr)
670 {
671 return container_of(ibfmr, struct mlx4_ib_fmr, ibfmr);
672 }
673
to_mflow(struct ib_flow * ibflow)674 static inline struct mlx4_ib_flow *to_mflow(struct ib_flow *ibflow)
675 {
676 return container_of(ibflow, struct mlx4_ib_flow, ibflow);
677 }
678
to_mqp(struct ib_qp * ibqp)679 static inline struct mlx4_ib_qp *to_mqp(struct ib_qp *ibqp)
680 {
681 return container_of(ibqp, struct mlx4_ib_qp, ibqp);
682 }
683
to_mibqp(struct mlx4_qp * mqp)684 static inline struct mlx4_ib_qp *to_mibqp(struct mlx4_qp *mqp)
685 {
686 return container_of(mqp, struct mlx4_ib_qp, mqp);
687 }
688
to_msrq(struct ib_srq * ibsrq)689 static inline struct mlx4_ib_srq *to_msrq(struct ib_srq *ibsrq)
690 {
691 return container_of(ibsrq, struct mlx4_ib_srq, ibsrq);
692 }
693
to_mibsrq(struct mlx4_srq * msrq)694 static inline struct mlx4_ib_srq *to_mibsrq(struct mlx4_srq *msrq)
695 {
696 return container_of(msrq, struct mlx4_ib_srq, msrq);
697 }
698
to_mah(struct ib_ah * ibah)699 static inline struct mlx4_ib_ah *to_mah(struct ib_ah *ibah)
700 {
701 return container_of(ibah, struct mlx4_ib_ah, ibah);
702 }
703
mlx4_ib_bond_next_port(struct mlx4_ib_dev * dev)704 static inline u8 mlx4_ib_bond_next_port(struct mlx4_ib_dev *dev)
705 {
706 dev->bond_next_port = (dev->bond_next_port + 1) % dev->num_ports;
707
708 return dev->bond_next_port + 1;
709 }
710
711 int mlx4_ib_init_sriov(struct mlx4_ib_dev *dev);
712 void mlx4_ib_close_sriov(struct mlx4_ib_dev *dev);
713
714 int mlx4_ib_db_map_user(struct mlx4_ib_ucontext *context, unsigned long virt,
715 struct mlx4_db *db);
716 void mlx4_ib_db_unmap_user(struct mlx4_ib_ucontext *context, struct mlx4_db *db);
717
718 struct ib_mr *mlx4_ib_get_dma_mr(struct ib_pd *pd, int acc);
719 int mlx4_ib_umem_write_mtt(struct mlx4_ib_dev *dev, struct mlx4_mtt *mtt,
720 struct ib_umem *umem);
721 struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
722 u64 virt_addr, int access_flags,
723 struct ib_udata *udata);
724 int mlx4_ib_dereg_mr(struct ib_mr *mr, struct ib_udata *udata);
725 struct ib_mw *mlx4_ib_alloc_mw(struct ib_pd *pd, enum ib_mw_type type,
726 struct ib_udata *udata);
727 int mlx4_ib_dealloc_mw(struct ib_mw *mw);
728 struct ib_mr *mlx4_ib_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
729 u32 max_num_sg, struct ib_udata *udata);
730 int mlx4_ib_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents,
731 unsigned int *sg_offset);
732 int mlx4_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period);
733 int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata);
734 int mlx4_ib_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
735 struct ib_udata *udata);
736 void mlx4_ib_destroy_cq(struct ib_cq *cq, struct ib_udata *udata);
737 int mlx4_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
738 int mlx4_ib_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
739 void __mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
740 void mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
741
742 int mlx4_ib_create_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr, u32 flags,
743 struct ib_udata *udata);
744 int mlx4_ib_create_ah_slave(struct ib_ah *ah, struct ib_ah_attr *ah_attr,
745 int slave_sgid_index, u8 *s_mac, u16 vlan_tag);
746 int mlx4_ib_query_ah(struct ib_ah *ibah, struct ib_ah_attr *ah_attr);
747 void mlx4_ib_destroy_ah(struct ib_ah *ah, u32 flags);
748
749 int mlx4_ib_create_srq(struct ib_srq *srq, struct ib_srq_init_attr *init_attr,
750 struct ib_udata *udata);
751 int mlx4_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
752 enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
753 int mlx4_ib_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
754 void mlx4_ib_destroy_srq(struct ib_srq *srq, struct ib_udata *udata);
755 void mlx4_ib_free_srq_wqe(struct mlx4_ib_srq *srq, int wqe_index);
756 int mlx4_ib_post_srq_recv(struct ib_srq *ibsrq, const struct ib_recv_wr *wr,
757 const struct ib_recv_wr **bad_wr);
758
759 struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
760 struct ib_qp_init_attr *init_attr,
761 struct ib_udata *udata);
762 int mlx4_ib_destroy_qp(struct ib_qp *qp, struct ib_udata *udata);
763 int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
764 int attr_mask, struct ib_udata *udata);
765 int mlx4_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask,
766 struct ib_qp_init_attr *qp_init_attr);
767 int mlx4_ib_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
768 const struct ib_send_wr **bad_wr);
769 int mlx4_ib_post_recv(struct ib_qp *ibqp, const struct ib_recv_wr *wr,
770 const struct ib_recv_wr **bad_wr);
771
772 int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int mad_ifc_flags,
773 int port, const struct ib_wc *in_wc, const struct ib_grh *in_grh,
774 const void *in_mad, void *response_mad);
775 int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
776 const struct ib_wc *in_wc, const struct ib_grh *in_grh,
777 const struct ib_mad_hdr *in, size_t in_mad_size,
778 struct ib_mad_hdr *out, size_t *out_mad_size,
779 u16 *out_mad_pkey_index);
780 int mlx4_ib_mad_init(struct mlx4_ib_dev *dev);
781 void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev);
782
783 struct ib_fmr *mlx4_ib_fmr_alloc(struct ib_pd *pd, int mr_access_flags,
784 struct ib_fmr_attr *fmr_attr);
785 int mlx4_ib_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list, int npages,
786 u64 iova);
787 int mlx4_ib_unmap_fmr(struct list_head *fmr_list);
788 int mlx4_ib_fmr_dealloc(struct ib_fmr *fmr);
789 int __mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
790 struct ib_port_attr *props, int netw_view);
791 int __mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
792 u16 *pkey, int netw_view);
793
794 int __mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
795 union ib_gid *gid, int netw_view);
796
mlx4_ib_ah_grh_present(struct mlx4_ib_ah * ah)797 static inline bool mlx4_ib_ah_grh_present(struct mlx4_ib_ah *ah)
798 {
799 u8 port = be32_to_cpu(ah->av.ib.port_pd) >> 24 & 3;
800
801 if (rdma_port_get_link_layer(ah->ibah.device, port) == IB_LINK_LAYER_ETHERNET)
802 return true;
803
804 return !!(ah->av.ib.g_slid & 0x80);
805 }
806
807 int mlx4_ib_mcg_port_init(struct mlx4_ib_demux_ctx *ctx);
808 void mlx4_ib_mcg_port_cleanup(struct mlx4_ib_demux_ctx *ctx, int destroy_wq);
809 void clean_vf_mcast(struct mlx4_ib_demux_ctx *ctx, int slave);
810 int mlx4_ib_mcg_init(void);
811 void mlx4_ib_mcg_destroy(void);
812
813 int mlx4_ib_find_real_gid(struct ib_device *ibdev, u8 port, __be64 guid);
814
815 int mlx4_ib_mcg_multiplex_handler(struct ib_device *ibdev, int port, int slave,
816 struct ib_sa_mad *sa_mad);
817 int mlx4_ib_mcg_demux_handler(struct ib_device *ibdev, int port, int slave,
818 struct ib_sa_mad *mad);
819
820 int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
821 union ib_gid *gid);
822
823 void mlx4_ib_dispatch_event(struct mlx4_ib_dev *dev, u8 port_num,
824 enum ib_event_type type);
825
826 void mlx4_ib_tunnels_update_work(struct work_struct *work);
827
828 int mlx4_ib_send_to_slave(struct mlx4_ib_dev *dev, int slave, u8 port,
829 enum ib_qp_type qpt, struct ib_wc *wc,
830 struct ib_grh *grh, struct ib_mad *mad);
831
832 int mlx4_ib_send_to_wire(struct mlx4_ib_dev *dev, int slave, u8 port,
833 enum ib_qp_type dest_qpt, u16 pkey_index, u32 remote_qpn,
834 u32 qkey, struct ib_ah_attr *attr, u8 *s_mac,
835 u16 vlan_id, struct ib_mad *mad);
836
837 __be64 mlx4_ib_get_new_demux_tid(struct mlx4_ib_demux_ctx *ctx);
838
839 int mlx4_ib_demux_cm_handler(struct ib_device *ibdev, int port, int *slave,
840 struct ib_mad *mad);
841
842 int mlx4_ib_multiplex_cm_handler(struct ib_device *ibdev, int port, int slave_id,
843 struct ib_mad *mad);
844
845 void mlx4_ib_cm_paravirt_init(struct mlx4_ib_dev *dev);
846 void mlx4_ib_cm_paravirt_clean(struct mlx4_ib_dev *dev, int slave_id);
847
848 /* alias guid support */
849 void mlx4_ib_init_alias_guid_work(struct mlx4_ib_dev *dev, int port);
850 int mlx4_ib_init_alias_guid_service(struct mlx4_ib_dev *dev);
851 void mlx4_ib_destroy_alias_guid_service(struct mlx4_ib_dev *dev);
852 void mlx4_ib_invalidate_all_guid_record(struct mlx4_ib_dev *dev, int port);
853
854 void mlx4_ib_notify_slaves_on_guid_change(struct mlx4_ib_dev *dev,
855 int block_num,
856 u8 port_num, u8 *p_data);
857
858 void mlx4_ib_update_cache_on_guid_change(struct mlx4_ib_dev *dev,
859 int block_num, u8 port_num,
860 u8 *p_data);
861
862 int add_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
863 struct attribute *attr);
864 void del_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
865 struct attribute *attr);
866 ib_sa_comp_mask mlx4_ib_get_aguid_comp_mask_from_ix(int index);
867 void mlx4_ib_slave_alias_guid_event(struct mlx4_ib_dev *dev, int slave,
868 int port, int slave_init);
869
870 int mlx4_ib_device_register_sysfs(struct mlx4_ib_dev *device) ;
871
872 void mlx4_ib_device_unregister_sysfs(struct mlx4_ib_dev *device);
873
874 __be64 mlx4_ib_gen_node_guid(void);
875
876 int mlx4_ib_steer_qp_alloc(struct mlx4_ib_dev *dev, int count, int *qpn);
877 void mlx4_ib_steer_qp_free(struct mlx4_ib_dev *dev, u32 qpn, int count);
878 int mlx4_ib_steer_qp_reg(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
879 int is_attach);
880 int mlx4_ib_rereg_user_mr(struct ib_mr *mr, int flags,
881 u64 start, u64 length, u64 virt_addr,
882 int mr_access_flags, struct ib_pd *pd,
883 struct ib_udata *udata);
884 int mlx4_ib_gid_index_to_real_index(struct mlx4_ib_dev *ibdev,
885 u8 port_num, int index);
886
887 void mlx4_sched_ib_sl2vl_update_work(struct mlx4_ib_dev *ibdev,
888 int port);
889
890 void mlx4_ib_sl2vl_update(struct mlx4_ib_dev *mdev, int port);
891
892 #endif /* MLX4_IB_H */
893