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/notifier.h>
42
43 #include <rdma/ib_verbs.h>
44 #include <rdma/ib_umem.h>
45 #include <rdma/ib_mad.h>
46 #include <rdma/ib_sa.h>
47
48 #include <linux/mlx4/device.h>
49 #include <linux/mlx4/doorbell.h>
50 #include <linux/mlx4/qp.h>
51 #include <linux/mlx4/cq.h>
52
53 #define MLX4_IB_DRV_NAME "mlx4_ib"
54
55 #ifdef pr_fmt
56 #undef pr_fmt
57 #endif
58 #define pr_fmt(fmt) "<" MLX4_IB_DRV_NAME "> %s: " fmt, __func__
59
60 #define mlx4_ib_warn(ibdev, format, arg...) \
61 dev_warn((ibdev)->dev.parent, MLX4_IB_DRV_NAME ": " format, ## arg)
62
63 enum {
64 MLX4_IB_SQ_MIN_WQE_SHIFT = 6,
65 MLX4_IB_MAX_HEADROOM = 2048
66 };
67
68 #define MLX4_IB_SQ_HEADROOM(shift) ((MLX4_IB_MAX_HEADROOM >> (shift)) + 1)
69 #define MLX4_IB_SQ_MAX_SPARE (MLX4_IB_SQ_HEADROOM(MLX4_IB_SQ_MIN_WQE_SHIFT))
70
71 /*module param to indicate if SM assigns the alias_GUID*/
72 extern int mlx4_ib_sm_guid_assign;
73
74 #define MLX4_IB_UC_STEER_QPN_ALIGN 1
75 #define MLX4_IB_UC_MAX_NUM_QPS 256
76
77 enum hw_bar_type {
78 HW_BAR_BF,
79 HW_BAR_DB,
80 HW_BAR_CLOCK,
81 HW_BAR_COUNT
82 };
83
84 struct mlx4_ib_ucontext {
85 struct ib_ucontext ibucontext;
86 struct mlx4_uar uar;
87 struct list_head db_page_list;
88 struct mutex db_page_mutex;
89 struct list_head wqn_ranges_list;
90 struct mutex wqn_ranges_mutex; /* protect wqn_ranges_list */
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 #define MAX_REGS_PER_FLOW 2
151
152 struct mlx4_flow_reg_id {
153 u64 id;
154 u64 mirror;
155 };
156
157 struct mlx4_ib_flow {
158 struct ib_flow ibflow;
159 /* translating DMFS verbs sniffer rule to FW API requires two reg IDs */
160 struct mlx4_flow_reg_id reg_id[MAX_REGS_PER_FLOW];
161 };
162
163 struct mlx4_ib_wq {
164 u64 *wrid;
165 spinlock_t lock;
166 int wqe_cnt;
167 int max_post;
168 int max_gs;
169 int offset;
170 int wqe_shift;
171 unsigned head;
172 unsigned tail;
173 };
174
175 enum {
176 MLX4_IB_QP_CREATE_ROCE_V2_GSI = IB_QP_CREATE_RESERVED_START
177 };
178
179 enum mlx4_ib_qp_flags {
180 MLX4_IB_QP_LSO = IB_QP_CREATE_IPOIB_UD_LSO,
181 MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK = IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK,
182 MLX4_IB_QP_NETIF = IB_QP_CREATE_NETIF_QP,
183 MLX4_IB_QP_SCATTER_FCS = IB_QP_CREATE_SCATTER_FCS,
184
185 /* Mellanox specific flags start from IB_QP_CREATE_RESERVED_START */
186 MLX4_IB_ROCE_V2_GSI_QP = MLX4_IB_QP_CREATE_ROCE_V2_GSI,
187 MLX4_IB_SRIOV_TUNNEL_QP = 1 << 30,
188 MLX4_IB_SRIOV_SQP = 1 << 31,
189 };
190
191 struct mlx4_ib_gid_entry {
192 struct list_head list;
193 union ib_gid gid;
194 int added;
195 u8 port;
196 };
197
198 enum mlx4_ib_qp_type {
199 /*
200 * IB_QPT_SMI and IB_QPT_GSI have to be the first two entries
201 * here (and in that order) since the MAD layer uses them as
202 * indices into a 2-entry table.
203 */
204 MLX4_IB_QPT_SMI = IB_QPT_SMI,
205 MLX4_IB_QPT_GSI = IB_QPT_GSI,
206
207 MLX4_IB_QPT_RC = IB_QPT_RC,
208 MLX4_IB_QPT_UC = IB_QPT_UC,
209 MLX4_IB_QPT_UD = IB_QPT_UD,
210 MLX4_IB_QPT_RAW_IPV6 = IB_QPT_RAW_IPV6,
211 MLX4_IB_QPT_RAW_ETHERTYPE = IB_QPT_RAW_ETHERTYPE,
212 MLX4_IB_QPT_RAW_PACKET = IB_QPT_RAW_PACKET,
213 MLX4_IB_QPT_XRC_INI = IB_QPT_XRC_INI,
214 MLX4_IB_QPT_XRC_TGT = IB_QPT_XRC_TGT,
215
216 MLX4_IB_QPT_PROXY_SMI_OWNER = 1 << 16,
217 MLX4_IB_QPT_PROXY_SMI = 1 << 17,
218 MLX4_IB_QPT_PROXY_GSI = 1 << 18,
219 MLX4_IB_QPT_TUN_SMI_OWNER = 1 << 19,
220 MLX4_IB_QPT_TUN_SMI = 1 << 20,
221 MLX4_IB_QPT_TUN_GSI = 1 << 21,
222 };
223
224 #define MLX4_IB_QPT_ANY_SRIOV (MLX4_IB_QPT_PROXY_SMI_OWNER | \
225 MLX4_IB_QPT_PROXY_SMI | MLX4_IB_QPT_PROXY_GSI | MLX4_IB_QPT_TUN_SMI_OWNER | \
226 MLX4_IB_QPT_TUN_SMI | MLX4_IB_QPT_TUN_GSI)
227
228 enum mlx4_ib_mad_ifc_flags {
229 MLX4_MAD_IFC_IGNORE_MKEY = 1,
230 MLX4_MAD_IFC_IGNORE_BKEY = 2,
231 MLX4_MAD_IFC_IGNORE_KEYS = (MLX4_MAD_IFC_IGNORE_MKEY |
232 MLX4_MAD_IFC_IGNORE_BKEY),
233 MLX4_MAD_IFC_NET_VIEW = 4,
234 };
235
236 enum {
237 MLX4_NUM_TUNNEL_BUFS = 512,
238 MLX4_NUM_WIRE_BUFS = 2048,
239 };
240
241 struct mlx4_ib_tunnel_header {
242 struct mlx4_av av;
243 __be32 remote_qpn;
244 __be32 qkey;
245 __be16 vlan;
246 u8 mac[6];
247 __be16 pkey_index;
248 u8 reserved[6];
249 };
250
251 struct mlx4_ib_buf {
252 void *addr;
253 dma_addr_t map;
254 };
255
256 struct mlx4_rcv_tunnel_hdr {
257 __be32 flags_src_qp; /* flags[6:5] is defined for VLANs:
258 * 0x0 - no vlan was in the packet
259 * 0x01 - C-VLAN was in the packet */
260 u8 g_ml_path; /* gid bit stands for ipv6/4 header in RoCE */
261 u8 reserved;
262 __be16 pkey_index;
263 __be16 sl_vid;
264 __be16 slid_mac_47_32;
265 __be32 mac_31_0;
266 };
267
268 struct mlx4_ib_proxy_sqp_hdr {
269 struct ib_grh grh;
270 struct mlx4_rcv_tunnel_hdr tun;
271 } __packed;
272
273 struct mlx4_roce_smac_vlan_info {
274 u64 smac;
275 int smac_index;
276 int smac_port;
277 u64 candidate_smac;
278 int candidate_smac_index;
279 int candidate_smac_port;
280 u16 vid;
281 int vlan_index;
282 int vlan_port;
283 u16 candidate_vid;
284 int candidate_vlan_index;
285 int candidate_vlan_port;
286 int update_vid;
287 };
288
289 struct mlx4_wqn_range {
290 int base_wqn;
291 int size;
292 int refcount;
293 bool dirty;
294 struct list_head list;
295 };
296
297 struct mlx4_ib_rss {
298 unsigned int base_qpn_tbl_sz;
299 u8 flags;
300 u8 rss_key[MLX4_EN_RSS_KEY_SIZE];
301 };
302
303 enum {
304 /*
305 * Largest possible UD header: send with GRH and immediate
306 * data plus 18 bytes for an Ethernet header with VLAN/802.1Q
307 * tag. (LRH would only use 8 bytes, so Ethernet is the
308 * biggest case)
309 */
310 MLX4_IB_UD_HEADER_SIZE = 82,
311 MLX4_IB_LSO_HEADER_SPARE = 128,
312 };
313
314 struct mlx4_ib_sqp {
315 int pkey_index;
316 u32 qkey;
317 u32 send_psn;
318 struct ib_ud_header ud_header;
319 u8 header_buf[MLX4_IB_UD_HEADER_SIZE];
320 struct ib_qp *roce_v2_gsi;
321 };
322
323 struct mlx4_ib_qp {
324 union {
325 struct ib_qp ibqp;
326 struct ib_wq ibwq;
327 };
328 struct mlx4_qp mqp;
329 struct mlx4_buf buf;
330
331 struct mlx4_db db;
332 struct mlx4_ib_wq rq;
333
334 u32 doorbell_qpn;
335 __be32 sq_signal_bits;
336 unsigned sq_next_wqe;
337 int sq_spare_wqes;
338 struct mlx4_ib_wq sq;
339
340 enum mlx4_ib_qp_type mlx4_ib_qp_type;
341 struct ib_umem *umem;
342 struct mlx4_mtt mtt;
343 int buf_size;
344 struct mutex mutex;
345 u16 xrcdn;
346 u32 flags;
347 u8 port;
348 u8 alt_port;
349 u8 atomic_rd_en;
350 u8 resp_depth;
351 u8 sq_no_prefetch;
352 u8 state;
353 int mlx_type;
354 u32 inl_recv_sz;
355 struct list_head gid_list;
356 struct list_head steering_rules;
357 struct mlx4_ib_buf *sqp_proxy_rcv;
358 struct mlx4_roce_smac_vlan_info pri;
359 struct mlx4_roce_smac_vlan_info alt;
360 u64 reg_id;
361 struct list_head qps_list;
362 struct list_head cq_recv_list;
363 struct list_head cq_send_list;
364 struct counter_index *counter_index;
365 struct mlx4_wqn_range *wqn_range;
366 /* Number of RSS QP parents that uses this WQ */
367 u32 rss_usecnt;
368 union {
369 struct mlx4_ib_rss *rss_ctx;
370 struct mlx4_ib_sqp *sqp;
371 };
372 };
373
374 struct mlx4_ib_srq {
375 struct ib_srq ibsrq;
376 struct mlx4_srq msrq;
377 struct mlx4_buf buf;
378 struct mlx4_db db;
379 u64 *wrid;
380 spinlock_t lock;
381 int head;
382 int tail;
383 u16 wqe_ctr;
384 struct ib_umem *umem;
385 struct mlx4_mtt mtt;
386 struct mutex mutex;
387 };
388
389 struct mlx4_ib_ah {
390 struct ib_ah ibah;
391 union mlx4_ext_av av;
392 };
393
394 struct mlx4_ib_rwq_ind_table {
395 struct ib_rwq_ind_table ib_rwq_ind_tbl;
396 };
397
398 /****************************************/
399 /* alias guid support */
400 /****************************************/
401 #define NUM_PORT_ALIAS_GUID 2
402 #define NUM_ALIAS_GUID_IN_REC 8
403 #define NUM_ALIAS_GUID_REC_IN_PORT 16
404 #define GUID_REC_SIZE 8
405 #define NUM_ALIAS_GUID_PER_PORT 128
406 #define MLX4_NOT_SET_GUID (0x00LL)
407 #define MLX4_GUID_FOR_DELETE_VAL (~(0x00LL))
408
409 enum mlx4_guid_alias_rec_status {
410 MLX4_GUID_INFO_STATUS_IDLE,
411 MLX4_GUID_INFO_STATUS_SET,
412 };
413
414 #define GUID_STATE_NEED_PORT_INIT 0x01
415
416 enum mlx4_guid_alias_rec_method {
417 MLX4_GUID_INFO_RECORD_SET = IB_MGMT_METHOD_SET,
418 MLX4_GUID_INFO_RECORD_DELETE = IB_SA_METHOD_DELETE,
419 };
420
421 struct mlx4_sriov_alias_guid_info_rec_det {
422 u8 all_recs[GUID_REC_SIZE * NUM_ALIAS_GUID_IN_REC];
423 ib_sa_comp_mask guid_indexes; /*indicates what from the 8 records are valid*/
424 enum mlx4_guid_alias_rec_status status; /*indicates the administraively status of the record.*/
425 unsigned int guids_retry_schedule[NUM_ALIAS_GUID_IN_REC];
426 u64 time_to_run;
427 };
428
429 struct mlx4_sriov_alias_guid_port_rec_det {
430 struct mlx4_sriov_alias_guid_info_rec_det all_rec_per_port[NUM_ALIAS_GUID_REC_IN_PORT];
431 struct workqueue_struct *wq;
432 struct delayed_work alias_guid_work;
433 u32 port;
434 u32 state_flags;
435 struct mlx4_sriov_alias_guid *parent;
436 struct list_head cb_list;
437 };
438
439 struct mlx4_sriov_alias_guid {
440 struct mlx4_sriov_alias_guid_port_rec_det ports_guid[MLX4_MAX_PORTS];
441 spinlock_t ag_work_lock;
442 struct ib_sa_client *sa_client;
443 };
444
445 struct mlx4_ib_demux_work {
446 struct work_struct work;
447 struct mlx4_ib_dev *dev;
448 int slave;
449 int do_init;
450 u8 port;
451
452 };
453
454 struct mlx4_ib_tun_tx_buf {
455 struct mlx4_ib_buf buf;
456 struct ib_ah *ah;
457 };
458
459 struct mlx4_ib_demux_pv_qp {
460 struct ib_qp *qp;
461 enum ib_qp_type proxy_qpt;
462 struct mlx4_ib_buf *ring;
463 struct mlx4_ib_tun_tx_buf *tx_ring;
464 spinlock_t tx_lock;
465 unsigned tx_ix_head;
466 unsigned tx_ix_tail;
467 };
468
469 enum mlx4_ib_demux_pv_state {
470 DEMUX_PV_STATE_DOWN,
471 DEMUX_PV_STATE_STARTING,
472 DEMUX_PV_STATE_ACTIVE,
473 DEMUX_PV_STATE_DOWNING,
474 };
475
476 struct mlx4_ib_demux_pv_ctx {
477 int port;
478 int slave;
479 enum mlx4_ib_demux_pv_state state;
480 int has_smi;
481 struct ib_device *ib_dev;
482 struct ib_cq *cq;
483 struct ib_pd *pd;
484 struct work_struct work;
485 struct workqueue_struct *wq;
486 struct workqueue_struct *wi_wq;
487 struct mlx4_ib_demux_pv_qp qp[2];
488 };
489
490 struct mlx4_ib_demux_ctx {
491 struct ib_device *ib_dev;
492 int port;
493 struct workqueue_struct *wq;
494 struct workqueue_struct *wi_wq;
495 struct workqueue_struct *ud_wq;
496 spinlock_t ud_lock;
497 atomic64_t subnet_prefix;
498 __be64 guid_cache[128];
499 struct mlx4_ib_dev *dev;
500 /* the following lock protects both mcg_table and mcg_mgid0_list */
501 struct mutex mcg_table_lock;
502 struct rb_root mcg_table;
503 struct list_head mcg_mgid0_list;
504 struct workqueue_struct *mcg_wq;
505 struct mlx4_ib_demux_pv_ctx **tun;
506 atomic_t tid;
507 int flushing; /* flushing the work queue */
508 };
509
510 struct mlx4_ib_sriov {
511 struct mlx4_ib_demux_ctx demux[MLX4_MAX_PORTS];
512 struct mlx4_ib_demux_pv_ctx *sqps[MLX4_MAX_PORTS];
513 /* when using this spinlock you should use "irq" because
514 * it may be called from interrupt context.*/
515 spinlock_t going_down_lock;
516 int is_going_down;
517
518 struct mlx4_sriov_alias_guid alias_guid;
519
520 /* CM paravirtualization fields */
521 struct xarray pv_id_table;
522 u32 pv_id_next;
523 spinlock_t id_map_lock;
524 struct rb_root sl_id_map;
525 struct list_head cm_list;
526 struct xarray xa_rej_tmout;
527 };
528
529 struct gid_cache_context {
530 int real_index;
531 int refcount;
532 };
533
534 struct gid_entry {
535 union ib_gid gid;
536 enum ib_gid_type gid_type;
537 struct gid_cache_context *ctx;
538 u16 vlan_id;
539 };
540
541 struct mlx4_port_gid_table {
542 struct gid_entry gids[MLX4_MAX_PORT_GIDS];
543 };
544
545 struct mlx4_ib_iboe {
546 spinlock_t lock;
547 struct net_device *netdevs[MLX4_MAX_PORTS];
548 atomic64_t mac[MLX4_MAX_PORTS];
549 struct notifier_block nb;
550 struct mlx4_port_gid_table gids[MLX4_MAX_PORTS];
551 enum ib_port_state last_port_state[MLX4_MAX_PORTS];
552 };
553
554 struct pkey_mgt {
555 u8 virt2phys_pkey[MLX4_MFUNC_MAX][MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS];
556 u16 phys_pkey_cache[MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS];
557 struct list_head pkey_port_list[MLX4_MFUNC_MAX];
558 struct kobject *device_parent[MLX4_MFUNC_MAX];
559 };
560
561 struct mlx4_ib_iov_sysfs_attr {
562 void *ctx;
563 struct kobject *kobj;
564 unsigned long data;
565 u32 entry_num;
566 char name[15];
567 struct device_attribute dentry;
568 struct device *dev;
569 };
570
571 struct mlx4_ib_iov_sysfs_attr_ar {
572 struct mlx4_ib_iov_sysfs_attr dentries[3 * NUM_ALIAS_GUID_PER_PORT + 1];
573 };
574
575 struct mlx4_ib_iov_port {
576 char name[100];
577 u8 num;
578 struct mlx4_ib_dev *dev;
579 struct list_head list;
580 struct mlx4_ib_iov_sysfs_attr_ar *dentr_ar;
581 struct ib_port_attr attr;
582 struct kobject *cur_port;
583 struct kobject *admin_alias_parent;
584 struct kobject *gids_parent;
585 struct kobject *pkeys_parent;
586 struct kobject *mcgs_parent;
587 struct mlx4_ib_iov_sysfs_attr mcg_dentry;
588 };
589
590 struct counter_index {
591 struct list_head list;
592 u32 index;
593 u8 allocated;
594 };
595
596 struct mlx4_ib_counters {
597 struct list_head counters_list;
598 struct mutex mutex; /* mutex for accessing counters list */
599 u32 default_counter;
600 };
601
602 #define MLX4_DIAG_COUNTERS_TYPES 2
603
604 struct mlx4_ib_diag_counters {
605 struct rdma_stat_desc *descs;
606 u32 *offset;
607 u32 num_counters;
608 };
609
610 struct mlx4_ib_dev {
611 struct ib_device ib_dev;
612 struct mlx4_dev *dev;
613 int num_ports;
614 void __iomem *uar_map;
615
616 struct mlx4_uar priv_uar;
617 u32 priv_pdn;
618 MLX4_DECLARE_DOORBELL_LOCK(uar_lock);
619
620 struct ib_mad_agent *send_agent[MLX4_MAX_PORTS][2];
621 struct ib_ah *sm_ah[MLX4_MAX_PORTS];
622 spinlock_t sm_lock;
623 atomic64_t sl2vl[MLX4_MAX_PORTS];
624 struct mlx4_ib_sriov sriov;
625
626 struct mutex cap_mask_mutex;
627 bool ib_active;
628 struct mlx4_ib_iboe iboe;
629 struct mlx4_ib_counters counters_table[MLX4_MAX_PORTS];
630 int *eq_table;
631 struct kobject *iov_parent;
632 struct kobject *ports_parent;
633 struct kobject *dev_ports_parent[MLX4_MFUNC_MAX];
634 struct mlx4_ib_iov_port iov_ports[MLX4_MAX_PORTS];
635 struct pkey_mgt pkeys;
636 unsigned long *ib_uc_qpns_bitmap;
637 int steer_qpn_count;
638 int steer_qpn_base;
639 int steering_support;
640 struct mlx4_ib_qp *qp1_proxy[MLX4_MAX_PORTS];
641 /* lock when destroying qp1_proxy and getting netdev events */
642 struct mutex qp1_proxy_lock[MLX4_MAX_PORTS];
643 u8 bond_next_port;
644 /* protect resources needed as part of reset flow */
645 spinlock_t reset_flow_resource_lock;
646 struct list_head qp_list;
647 struct mlx4_ib_diag_counters diag_counters[MLX4_DIAG_COUNTERS_TYPES];
648 struct notifier_block mlx_nb;
649 };
650
651 struct ib_event_work {
652 struct work_struct work;
653 struct mlx4_ib_dev *ib_dev;
654 struct mlx4_eqe ib_eqe;
655 int port;
656 };
657
658 struct mlx4_ib_qp_tunnel_init_attr {
659 struct ib_qp_init_attr init_attr;
660 int slave;
661 enum ib_qp_type proxy_qp_type;
662 u32 port;
663 };
664
665 struct mlx4_uverbs_ex_query_device {
666 __u32 comp_mask;
667 __u32 reserved;
668 };
669
to_mdev(struct ib_device * ibdev)670 static inline struct mlx4_ib_dev *to_mdev(struct ib_device *ibdev)
671 {
672 return container_of(ibdev, struct mlx4_ib_dev, ib_dev);
673 }
674
to_mucontext(struct ib_ucontext * ibucontext)675 static inline struct mlx4_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext)
676 {
677 return container_of(ibucontext, struct mlx4_ib_ucontext, ibucontext);
678 }
679
to_mpd(struct ib_pd * ibpd)680 static inline struct mlx4_ib_pd *to_mpd(struct ib_pd *ibpd)
681 {
682 return container_of(ibpd, struct mlx4_ib_pd, ibpd);
683 }
684
to_mxrcd(struct ib_xrcd * ibxrcd)685 static inline struct mlx4_ib_xrcd *to_mxrcd(struct ib_xrcd *ibxrcd)
686 {
687 return container_of(ibxrcd, struct mlx4_ib_xrcd, ibxrcd);
688 }
689
to_mcq(struct ib_cq * ibcq)690 static inline struct mlx4_ib_cq *to_mcq(struct ib_cq *ibcq)
691 {
692 return container_of(ibcq, struct mlx4_ib_cq, ibcq);
693 }
694
to_mibcq(struct mlx4_cq * mcq)695 static inline struct mlx4_ib_cq *to_mibcq(struct mlx4_cq *mcq)
696 {
697 return container_of(mcq, struct mlx4_ib_cq, mcq);
698 }
699
to_mmr(struct ib_mr * ibmr)700 static inline struct mlx4_ib_mr *to_mmr(struct ib_mr *ibmr)
701 {
702 return container_of(ibmr, struct mlx4_ib_mr, ibmr);
703 }
704
to_mmw(struct ib_mw * ibmw)705 static inline struct mlx4_ib_mw *to_mmw(struct ib_mw *ibmw)
706 {
707 return container_of(ibmw, struct mlx4_ib_mw, ibmw);
708 }
709
to_mflow(struct ib_flow * ibflow)710 static inline struct mlx4_ib_flow *to_mflow(struct ib_flow *ibflow)
711 {
712 return container_of(ibflow, struct mlx4_ib_flow, ibflow);
713 }
714
to_mqp(struct ib_qp * ibqp)715 static inline struct mlx4_ib_qp *to_mqp(struct ib_qp *ibqp)
716 {
717 return container_of(ibqp, struct mlx4_ib_qp, ibqp);
718 }
719
to_mibqp(struct mlx4_qp * mqp)720 static inline struct mlx4_ib_qp *to_mibqp(struct mlx4_qp *mqp)
721 {
722 return container_of(mqp, struct mlx4_ib_qp, mqp);
723 }
724
to_msrq(struct ib_srq * ibsrq)725 static inline struct mlx4_ib_srq *to_msrq(struct ib_srq *ibsrq)
726 {
727 return container_of(ibsrq, struct mlx4_ib_srq, ibsrq);
728 }
729
to_mibsrq(struct mlx4_srq * msrq)730 static inline struct mlx4_ib_srq *to_mibsrq(struct mlx4_srq *msrq)
731 {
732 return container_of(msrq, struct mlx4_ib_srq, msrq);
733 }
734
to_mah(struct ib_ah * ibah)735 static inline struct mlx4_ib_ah *to_mah(struct ib_ah *ibah)
736 {
737 return container_of(ibah, struct mlx4_ib_ah, ibah);
738 }
739
mlx4_ib_bond_next_port(struct mlx4_ib_dev * dev)740 static inline u8 mlx4_ib_bond_next_port(struct mlx4_ib_dev *dev)
741 {
742 dev->bond_next_port = (dev->bond_next_port + 1) % dev->num_ports;
743
744 return dev->bond_next_port + 1;
745 }
746
747 int mlx4_ib_init_sriov(struct mlx4_ib_dev *dev);
748 void mlx4_ib_close_sriov(struct mlx4_ib_dev *dev);
749
750 int mlx4_ib_db_map_user(struct ib_udata *udata, unsigned long virt,
751 struct mlx4_db *db);
752 void mlx4_ib_db_unmap_user(struct mlx4_ib_ucontext *context, struct mlx4_db *db);
753
754 struct ib_mr *mlx4_ib_get_dma_mr(struct ib_pd *pd, int acc);
755 int mlx4_ib_umem_write_mtt(struct mlx4_ib_dev *dev, struct mlx4_mtt *mtt,
756 struct ib_umem *umem);
757 struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
758 u64 virt_addr, int access_flags,
759 struct ib_udata *udata);
760 int mlx4_ib_dereg_mr(struct ib_mr *mr, struct ib_udata *udata);
761 int mlx4_ib_alloc_mw(struct ib_mw *mw, struct ib_udata *udata);
762 int mlx4_ib_dealloc_mw(struct ib_mw *mw);
763 struct ib_mr *mlx4_ib_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
764 u32 max_num_sg);
765 int mlx4_ib_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents,
766 unsigned int *sg_offset);
767 int mlx4_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period);
768 int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata);
769 int mlx4_ib_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
770 struct uverbs_attr_bundle *attrs);
771 int mlx4_ib_destroy_cq(struct ib_cq *cq, struct ib_udata *udata);
772 int mlx4_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
773 int mlx4_ib_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
774 void __mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
775 void mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
776
777 int mlx4_ib_create_ah(struct ib_ah *ah, struct rdma_ah_init_attr *init_attr,
778 struct ib_udata *udata);
779 int mlx4_ib_create_ah_slave(struct ib_ah *ah, struct rdma_ah_attr *ah_attr,
780 int slave_sgid_index, u8 *s_mac, u16 vlan_tag);
781 int mlx4_ib_query_ah(struct ib_ah *ibah, struct rdma_ah_attr *ah_attr);
mlx4_ib_destroy_ah(struct ib_ah * ah,u32 flags)782 static inline int mlx4_ib_destroy_ah(struct ib_ah *ah, u32 flags)
783 {
784 return 0;
785 }
786
787 int mlx4_ib_create_srq(struct ib_srq *srq, struct ib_srq_init_attr *init_attr,
788 struct ib_udata *udata);
789 int mlx4_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
790 enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
791 int mlx4_ib_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
792 int mlx4_ib_destroy_srq(struct ib_srq *srq, struct ib_udata *udata);
793 void mlx4_ib_free_srq_wqe(struct mlx4_ib_srq *srq, int wqe_index);
794 int mlx4_ib_post_srq_recv(struct ib_srq *ibsrq, const struct ib_recv_wr *wr,
795 const struct ib_recv_wr **bad_wr);
796
797 int mlx4_ib_create_qp(struct ib_qp *qp, struct ib_qp_init_attr *init_attr,
798 struct ib_udata *udata);
799 int mlx4_ib_destroy_qp(struct ib_qp *qp, struct ib_udata *udata);
800 void mlx4_ib_drain_sq(struct ib_qp *qp);
801 void mlx4_ib_drain_rq(struct ib_qp *qp);
802 int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
803 int attr_mask, struct ib_udata *udata);
804 int mlx4_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask,
805 struct ib_qp_init_attr *qp_init_attr);
806 int mlx4_ib_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
807 const struct ib_send_wr **bad_wr);
808 int mlx4_ib_post_recv(struct ib_qp *ibqp, const struct ib_recv_wr *wr,
809 const struct ib_recv_wr **bad_wr);
810
811 int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int mad_ifc_flags,
812 int port, const struct ib_wc *in_wc, const struct ib_grh *in_grh,
813 const void *in_mad, void *response_mad);
814 int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags, u32 port_num,
815 const struct ib_wc *in_wc, const struct ib_grh *in_grh,
816 const struct ib_mad *in, struct ib_mad *out,
817 size_t *out_mad_size, u16 *out_mad_pkey_index);
818 int mlx4_ib_mad_init(struct mlx4_ib_dev *dev);
819 void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev);
820
821 int __mlx4_ib_query_port(struct ib_device *ibdev, u32 port,
822 struct ib_port_attr *props, int netw_view);
823 int __mlx4_ib_query_pkey(struct ib_device *ibdev, u32 port, u16 index,
824 u16 *pkey, int netw_view);
825
826 int __mlx4_ib_query_gid(struct ib_device *ibdev, u32 port, int index,
827 union ib_gid *gid, int netw_view);
828
mlx4_ib_ah_grh_present(struct mlx4_ib_ah * ah)829 static inline bool mlx4_ib_ah_grh_present(struct mlx4_ib_ah *ah)
830 {
831 u32 port = be32_to_cpu(ah->av.ib.port_pd) >> 24 & 3;
832
833 if (rdma_port_get_link_layer(ah->ibah.device, port) == IB_LINK_LAYER_ETHERNET)
834 return true;
835
836 return !!(ah->av.ib.g_slid & 0x80);
837 }
838
839 int mlx4_ib_mcg_port_init(struct mlx4_ib_demux_ctx *ctx);
840 void mlx4_ib_mcg_port_cleanup(struct mlx4_ib_demux_ctx *ctx, int destroy_wq);
841 void clean_vf_mcast(struct mlx4_ib_demux_ctx *ctx, int slave);
842 int mlx4_ib_mcg_init(void);
843 void mlx4_ib_mcg_destroy(void);
844
845 int mlx4_ib_find_real_gid(struct ib_device *ibdev, u32 port, __be64 guid);
846
847 int mlx4_ib_mcg_multiplex_handler(struct ib_device *ibdev, int port, int slave,
848 struct ib_sa_mad *sa_mad);
849 int mlx4_ib_mcg_demux_handler(struct ib_device *ibdev, int port, int slave,
850 struct ib_sa_mad *mad);
851
852 int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
853 union ib_gid *gid);
854
855 void mlx4_ib_dispatch_event(struct mlx4_ib_dev *dev, u32 port_num,
856 enum ib_event_type type);
857
858 void mlx4_ib_tunnels_update_work(struct work_struct *work);
859
860 int mlx4_ib_send_to_slave(struct mlx4_ib_dev *dev, int slave, u32 port,
861 enum ib_qp_type qpt, struct ib_wc *wc,
862 struct ib_grh *grh, struct ib_mad *mad);
863
864 int mlx4_ib_send_to_wire(struct mlx4_ib_dev *dev, int slave, u32 port,
865 enum ib_qp_type dest_qpt, u16 pkey_index, u32 remote_qpn,
866 u32 qkey, struct rdma_ah_attr *attr, u8 *s_mac,
867 u16 vlan_id, struct ib_mad *mad);
868
869 __be64 mlx4_ib_get_new_demux_tid(struct mlx4_ib_demux_ctx *ctx);
870
871 int mlx4_ib_demux_cm_handler(struct ib_device *ibdev, int port, int *slave,
872 struct ib_mad *mad);
873
874 int mlx4_ib_multiplex_cm_handler(struct ib_device *ibdev, int port, int slave_id,
875 struct ib_mad *mad);
876
877 void mlx4_ib_cm_paravirt_init(struct mlx4_ib_dev *dev);
878 void mlx4_ib_cm_paravirt_clean(struct mlx4_ib_dev *dev, int slave_id);
879
880 /* alias guid support */
881 void mlx4_ib_init_alias_guid_work(struct mlx4_ib_dev *dev, int port);
882 int mlx4_ib_init_alias_guid_service(struct mlx4_ib_dev *dev);
883 void mlx4_ib_destroy_alias_guid_service(struct mlx4_ib_dev *dev);
884 void mlx4_ib_invalidate_all_guid_record(struct mlx4_ib_dev *dev, int port);
885
886 void mlx4_ib_notify_slaves_on_guid_change(struct mlx4_ib_dev *dev,
887 int block_num,
888 u32 port_num, u8 *p_data);
889
890 void mlx4_ib_update_cache_on_guid_change(struct mlx4_ib_dev *dev,
891 int block_num, u32 port_num,
892 u8 *p_data);
893
894 int add_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
895 struct attribute *attr);
896 void del_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
897 struct attribute *attr);
898 ib_sa_comp_mask mlx4_ib_get_aguid_comp_mask_from_ix(int index);
899 void mlx4_ib_slave_alias_guid_event(struct mlx4_ib_dev *dev, int slave,
900 int port, int slave_init);
901
902 int mlx4_ib_device_register_sysfs(struct mlx4_ib_dev *device) ;
903
904 void mlx4_ib_device_unregister_sysfs(struct mlx4_ib_dev *device);
905
906 __be64 mlx4_ib_gen_node_guid(void);
907
908 int mlx4_ib_steer_qp_alloc(struct mlx4_ib_dev *dev, int count, int *qpn);
909 void mlx4_ib_steer_qp_free(struct mlx4_ib_dev *dev, u32 qpn, int count);
910 int mlx4_ib_steer_qp_reg(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
911 int is_attach);
912 struct ib_mr *mlx4_ib_rereg_user_mr(struct ib_mr *mr, int flags, u64 start,
913 u64 length, u64 virt_addr,
914 int mr_access_flags, struct ib_pd *pd,
915 struct ib_udata *udata);
916 int mlx4_ib_gid_index_to_real_index(struct mlx4_ib_dev *ibdev,
917 const struct ib_gid_attr *attr);
918
919 void mlx4_sched_ib_sl2vl_update_work(struct mlx4_ib_dev *ibdev,
920 int port);
921
922 void mlx4_ib_sl2vl_update(struct mlx4_ib_dev *mdev, int port);
923
924 struct ib_wq *mlx4_ib_create_wq(struct ib_pd *pd,
925 struct ib_wq_init_attr *init_attr,
926 struct ib_udata *udata);
927 int mlx4_ib_destroy_wq(struct ib_wq *wq, struct ib_udata *udata);
928 int mlx4_ib_modify_wq(struct ib_wq *wq, struct ib_wq_attr *wq_attr,
929 u32 wq_attr_mask, struct ib_udata *udata);
930
931 int mlx4_ib_create_rwq_ind_table(struct ib_rwq_ind_table *ib_rwq_ind_tbl,
932 struct ib_rwq_ind_table_init_attr *init_attr,
933 struct ib_udata *udata);
934 static inline int
mlx4_ib_destroy_rwq_ind_table(struct ib_rwq_ind_table * wq_ind_table)935 mlx4_ib_destroy_rwq_ind_table(struct ib_rwq_ind_table *wq_ind_table)
936 {
937 return 0;
938 }
939 int mlx4_ib_umem_calc_optimal_mtt_size(struct ib_umem *umem, u64 start_va,
940 int *num_of_mtts);
941
942 int mlx4_ib_cm_init(void);
943 void mlx4_ib_cm_destroy(void);
944
945 int mlx4_ib_qp_event_init(void);
946 void mlx4_ib_qp_event_cleanup(void);
947
948 #endif /* MLX4_IB_H */
949