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 
42 #include <rdma/ib_verbs.h>
43 #include <rdma/ib_umem.h>
44 #include <rdma/ib_mad.h>
45 #include <rdma/ib_sa.h>
46 
47 #include <linux/mlx4/device.h>
48 #include <linux/mlx4/doorbell.h>
49 #include <linux/mlx4/qp.h>
50 #include <linux/mlx4/cq.h>
51 
52 #define MLX4_IB_DRV_NAME	"mlx4_ib"
53 
54 #ifdef pr_fmt
55 #undef pr_fmt
56 #endif
57 #define pr_fmt(fmt)	"<" MLX4_IB_DRV_NAME "> %s: " fmt, __func__
58 
59 #define mlx4_ib_warn(ibdev, format, arg...) \
60 	dev_warn((ibdev)->dev.parent, MLX4_IB_DRV_NAME ": " format, ## arg)
61 
62 enum {
63 	MLX4_IB_SQ_MIN_WQE_SHIFT = 6,
64 	MLX4_IB_MAX_HEADROOM	 = 2048
65 };
66 
67 #define MLX4_IB_SQ_HEADROOM(shift)	((MLX4_IB_MAX_HEADROOM >> (shift)) + 1)
68 #define MLX4_IB_SQ_MAX_SPARE		(MLX4_IB_SQ_HEADROOM(MLX4_IB_SQ_MIN_WQE_SHIFT))
69 
70 /*module param to indicate if SM assigns the alias_GUID*/
71 extern int mlx4_ib_sm_guid_assign;
72 
73 #define MLX4_IB_UC_STEER_QPN_ALIGN 1
74 #define MLX4_IB_UC_MAX_NUM_QPS     256
75 
76 enum hw_bar_type {
77 	HW_BAR_BF,
78 	HW_BAR_DB,
79 	HW_BAR_CLOCK,
80 	HW_BAR_COUNT
81 };
82 
83 struct mlx4_ib_ucontext {
84 	struct ib_ucontext	ibucontext;
85 	struct mlx4_uar		uar;
86 	struct list_head	db_page_list;
87 	struct mutex		db_page_mutex;
88 	struct list_head	wqn_ranges_list;
89 	struct mutex		wqn_ranges_mutex; /* protect wqn_ranges_list */
90 };
91 
92 struct mlx4_ib_pd {
93 	struct ib_pd		ibpd;
94 	u32			pdn;
95 };
96 
97 struct mlx4_ib_xrcd {
98 	struct ib_xrcd		ibxrcd;
99 	u32			xrcdn;
100 	struct ib_pd	       *pd;
101 	struct ib_cq	       *cq;
102 };
103 
104 struct mlx4_ib_cq_buf {
105 	struct mlx4_buf		buf;
106 	struct mlx4_mtt		mtt;
107 	int			entry_size;
108 };
109 
110 struct mlx4_ib_cq_resize {
111 	struct mlx4_ib_cq_buf	buf;
112 	int			cqe;
113 };
114 
115 struct mlx4_ib_cq {
116 	struct ib_cq		ibcq;
117 	struct mlx4_cq		mcq;
118 	struct mlx4_ib_cq_buf	buf;
119 	struct mlx4_ib_cq_resize *resize_buf;
120 	struct mlx4_db		db;
121 	spinlock_t		lock;
122 	struct mutex		resize_mutex;
123 	struct ib_umem	       *umem;
124 	struct ib_umem	       *resize_umem;
125 	int			create_flags;
126 	/* List of qps that it serves.*/
127 	struct list_head		send_qp_list;
128 	struct list_head		recv_qp_list;
129 };
130 
131 #define MLX4_MR_PAGES_ALIGN 0x40
132 
133 struct mlx4_ib_mr {
134 	struct ib_mr		ibmr;
135 	__be64			*pages;
136 	dma_addr_t		page_map;
137 	u32			npages;
138 	u32			max_pages;
139 	struct mlx4_mr		mmr;
140 	struct ib_umem	       *umem;
141 	size_t			page_map_size;
142 };
143 
144 struct mlx4_ib_mw {
145 	struct ib_mw		ibmw;
146 	struct mlx4_mw		mmw;
147 };
148 
149 struct mlx4_ib_fmr {
150 	struct ib_fmr           ibfmr;
151 	struct mlx4_fmr         mfmr;
152 };
153 
154 #define MAX_REGS_PER_FLOW 2
155 
156 struct mlx4_flow_reg_id {
157 	u64 id;
158 	u64 mirror;
159 };
160 
161 struct mlx4_ib_flow {
162 	struct ib_flow ibflow;
163 	/* translating DMFS verbs sniffer rule to FW API requires two reg IDs */
164 	struct mlx4_flow_reg_id reg_id[MAX_REGS_PER_FLOW];
165 };
166 
167 struct mlx4_ib_wq {
168 	u64		       *wrid;
169 	spinlock_t		lock;
170 	int			wqe_cnt;
171 	int			max_post;
172 	int			max_gs;
173 	int			offset;
174 	int			wqe_shift;
175 	unsigned		head;
176 	unsigned		tail;
177 };
178 
179 enum {
180 	MLX4_IB_QP_CREATE_ROCE_V2_GSI = IB_QP_CREATE_RESERVED_START
181 };
182 
183 enum mlx4_ib_qp_flags {
184 	MLX4_IB_QP_LSO = IB_QP_CREATE_IPOIB_UD_LSO,
185 	MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK = IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK,
186 	MLX4_IB_QP_NETIF = IB_QP_CREATE_NETIF_QP,
187 	MLX4_IB_QP_SCATTER_FCS = IB_QP_CREATE_SCATTER_FCS,
188 
189 	/* Mellanox specific flags start from IB_QP_CREATE_RESERVED_START */
190 	MLX4_IB_ROCE_V2_GSI_QP = MLX4_IB_QP_CREATE_ROCE_V2_GSI,
191 	MLX4_IB_SRIOV_TUNNEL_QP = 1 << 30,
192 	MLX4_IB_SRIOV_SQP = 1 << 31,
193 };
194 
195 struct mlx4_ib_gid_entry {
196 	struct list_head	list;
197 	union ib_gid		gid;
198 	int			added;
199 	u8			port;
200 };
201 
202 enum mlx4_ib_qp_type {
203 	/*
204 	 * IB_QPT_SMI and IB_QPT_GSI have to be the first two entries
205 	 * here (and in that order) since the MAD layer uses them as
206 	 * indices into a 2-entry table.
207 	 */
208 	MLX4_IB_QPT_SMI = IB_QPT_SMI,
209 	MLX4_IB_QPT_GSI = IB_QPT_GSI,
210 
211 	MLX4_IB_QPT_RC = IB_QPT_RC,
212 	MLX4_IB_QPT_UC = IB_QPT_UC,
213 	MLX4_IB_QPT_UD = IB_QPT_UD,
214 	MLX4_IB_QPT_RAW_IPV6 = IB_QPT_RAW_IPV6,
215 	MLX4_IB_QPT_RAW_ETHERTYPE = IB_QPT_RAW_ETHERTYPE,
216 	MLX4_IB_QPT_RAW_PACKET = IB_QPT_RAW_PACKET,
217 	MLX4_IB_QPT_XRC_INI = IB_QPT_XRC_INI,
218 	MLX4_IB_QPT_XRC_TGT = IB_QPT_XRC_TGT,
219 
220 	MLX4_IB_QPT_PROXY_SMI_OWNER	= 1 << 16,
221 	MLX4_IB_QPT_PROXY_SMI		= 1 << 17,
222 	MLX4_IB_QPT_PROXY_GSI		= 1 << 18,
223 	MLX4_IB_QPT_TUN_SMI_OWNER	= 1 << 19,
224 	MLX4_IB_QPT_TUN_SMI		= 1 << 20,
225 	MLX4_IB_QPT_TUN_GSI		= 1 << 21,
226 };
227 
228 #define MLX4_IB_QPT_ANY_SRIOV	(MLX4_IB_QPT_PROXY_SMI_OWNER | \
229 	MLX4_IB_QPT_PROXY_SMI | MLX4_IB_QPT_PROXY_GSI | MLX4_IB_QPT_TUN_SMI_OWNER | \
230 	MLX4_IB_QPT_TUN_SMI | MLX4_IB_QPT_TUN_GSI)
231 
232 enum mlx4_ib_mad_ifc_flags {
233 	MLX4_MAD_IFC_IGNORE_MKEY	= 1,
234 	MLX4_MAD_IFC_IGNORE_BKEY	= 2,
235 	MLX4_MAD_IFC_IGNORE_KEYS	= (MLX4_MAD_IFC_IGNORE_MKEY |
236 					   MLX4_MAD_IFC_IGNORE_BKEY),
237 	MLX4_MAD_IFC_NET_VIEW		= 4,
238 };
239 
240 enum {
241 	MLX4_NUM_TUNNEL_BUFS		= 256,
242 };
243 
244 struct mlx4_ib_tunnel_header {
245 	struct mlx4_av av;
246 	__be32 remote_qpn;
247 	__be32 qkey;
248 	__be16 vlan;
249 	u8 mac[6];
250 	__be16 pkey_index;
251 	u8 reserved[6];
252 };
253 
254 struct mlx4_ib_buf {
255 	void *addr;
256 	dma_addr_t map;
257 };
258 
259 struct mlx4_rcv_tunnel_hdr {
260 	__be32 flags_src_qp; /* flags[6:5] is defined for VLANs:
261 			      * 0x0 - no vlan was in the packet
262 			      * 0x01 - C-VLAN was in the packet */
263 	u8 g_ml_path; /* gid bit stands for ipv6/4 header in RoCE */
264 	u8 reserved;
265 	__be16 pkey_index;
266 	__be16 sl_vid;
267 	__be16 slid_mac_47_32;
268 	__be32 mac_31_0;
269 };
270 
271 struct mlx4_ib_proxy_sqp_hdr {
272 	struct ib_grh grh;
273 	struct mlx4_rcv_tunnel_hdr tun;
274 }  __packed;
275 
276 struct mlx4_roce_smac_vlan_info {
277 	u64 smac;
278 	int smac_index;
279 	int smac_port;
280 	u64 candidate_smac;
281 	int candidate_smac_index;
282 	int candidate_smac_port;
283 	u16 vid;
284 	int vlan_index;
285 	int vlan_port;
286 	u16 candidate_vid;
287 	int candidate_vlan_index;
288 	int candidate_vlan_port;
289 	int update_vid;
290 };
291 
292 struct mlx4_wqn_range {
293 	int			base_wqn;
294 	int			size;
295 	int			refcount;
296 	bool			dirty;
297 	struct list_head	list;
298 };
299 
300 struct mlx4_ib_rss {
301 	unsigned int		base_qpn_tbl_sz;
302 	u8			flags;
303 	u8			rss_key[MLX4_EN_RSS_KEY_SIZE];
304 };
305 
306 struct mlx4_ib_qp {
307 	union {
308 		struct ib_qp	ibqp;
309 		struct ib_wq	ibwq;
310 	};
311 	struct mlx4_qp		mqp;
312 	struct mlx4_buf		buf;
313 
314 	struct mlx4_db		db;
315 	struct mlx4_ib_wq	rq;
316 
317 	u32			doorbell_qpn;
318 	__be32			sq_signal_bits;
319 	unsigned		sq_next_wqe;
320 	int			sq_spare_wqes;
321 	struct mlx4_ib_wq	sq;
322 
323 	enum mlx4_ib_qp_type	mlx4_ib_qp_type;
324 	struct ib_umem	       *umem;
325 	struct mlx4_mtt		mtt;
326 	int			buf_size;
327 	struct mutex		mutex;
328 	u16			xrcdn;
329 	u32			flags;
330 	u8			port;
331 	u8			alt_port;
332 	u8			atomic_rd_en;
333 	u8			resp_depth;
334 	u8			sq_no_prefetch;
335 	u8			state;
336 	int			mlx_type;
337 	u32			inl_recv_sz;
338 	struct list_head	gid_list;
339 	struct list_head	steering_rules;
340 	struct mlx4_ib_buf	*sqp_proxy_rcv;
341 	struct mlx4_roce_smac_vlan_info pri;
342 	struct mlx4_roce_smac_vlan_info alt;
343 	u64			reg_id;
344 	struct list_head	qps_list;
345 	struct list_head	cq_recv_list;
346 	struct list_head	cq_send_list;
347 	struct counter_index	*counter_index;
348 	struct mlx4_wqn_range	*wqn_range;
349 	/* Number of RSS QP parents that uses this WQ */
350 	u32			rss_usecnt;
351 	struct mlx4_ib_rss	*rss_ctx;
352 };
353 
354 struct mlx4_ib_srq {
355 	struct ib_srq		ibsrq;
356 	struct mlx4_srq		msrq;
357 	struct mlx4_buf		buf;
358 	struct mlx4_db		db;
359 	u64		       *wrid;
360 	spinlock_t		lock;
361 	int			head;
362 	int			tail;
363 	u16			wqe_ctr;
364 	struct ib_umem	       *umem;
365 	struct mlx4_mtt		mtt;
366 	struct mutex		mutex;
367 };
368 
369 struct mlx4_ib_ah {
370 	struct ib_ah		ibah;
371 	union mlx4_ext_av       av;
372 };
373 
374 /****************************************/
375 /* alias guid support */
376 /****************************************/
377 #define NUM_PORT_ALIAS_GUID		2
378 #define NUM_ALIAS_GUID_IN_REC		8
379 #define NUM_ALIAS_GUID_REC_IN_PORT	16
380 #define GUID_REC_SIZE			8
381 #define NUM_ALIAS_GUID_PER_PORT		128
382 #define MLX4_NOT_SET_GUID		(0x00LL)
383 #define MLX4_GUID_FOR_DELETE_VAL	(~(0x00LL))
384 
385 enum mlx4_guid_alias_rec_status {
386 	MLX4_GUID_INFO_STATUS_IDLE,
387 	MLX4_GUID_INFO_STATUS_SET,
388 };
389 
390 #define GUID_STATE_NEED_PORT_INIT 0x01
391 
392 enum mlx4_guid_alias_rec_method {
393 	MLX4_GUID_INFO_RECORD_SET	= IB_MGMT_METHOD_SET,
394 	MLX4_GUID_INFO_RECORD_DELETE	= IB_SA_METHOD_DELETE,
395 };
396 
397 struct mlx4_sriov_alias_guid_info_rec_det {
398 	u8 all_recs[GUID_REC_SIZE * NUM_ALIAS_GUID_IN_REC];
399 	ib_sa_comp_mask guid_indexes; /*indicates what from the 8 records are valid*/
400 	enum mlx4_guid_alias_rec_status status; /*indicates the administraively status of the record.*/
401 	unsigned int guids_retry_schedule[NUM_ALIAS_GUID_IN_REC];
402 	u64 time_to_run;
403 };
404 
405 struct mlx4_sriov_alias_guid_port_rec_det {
406 	struct mlx4_sriov_alias_guid_info_rec_det all_rec_per_port[NUM_ALIAS_GUID_REC_IN_PORT];
407 	struct workqueue_struct *wq;
408 	struct delayed_work alias_guid_work;
409 	u8 port;
410 	u32 state_flags;
411 	struct mlx4_sriov_alias_guid *parent;
412 	struct list_head cb_list;
413 };
414 
415 struct mlx4_sriov_alias_guid {
416 	struct mlx4_sriov_alias_guid_port_rec_det ports_guid[MLX4_MAX_PORTS];
417 	spinlock_t ag_work_lock;
418 	struct ib_sa_client *sa_client;
419 };
420 
421 struct mlx4_ib_demux_work {
422 	struct work_struct	work;
423 	struct mlx4_ib_dev     *dev;
424 	int			slave;
425 	int			do_init;
426 	u8			port;
427 
428 };
429 
430 struct mlx4_ib_tun_tx_buf {
431 	struct mlx4_ib_buf buf;
432 	struct ib_ah *ah;
433 };
434 
435 struct mlx4_ib_demux_pv_qp {
436 	struct ib_qp *qp;
437 	enum ib_qp_type proxy_qpt;
438 	struct mlx4_ib_buf *ring;
439 	struct mlx4_ib_tun_tx_buf *tx_ring;
440 	spinlock_t tx_lock;
441 	unsigned tx_ix_head;
442 	unsigned tx_ix_tail;
443 };
444 
445 enum mlx4_ib_demux_pv_state {
446 	DEMUX_PV_STATE_DOWN,
447 	DEMUX_PV_STATE_STARTING,
448 	DEMUX_PV_STATE_ACTIVE,
449 	DEMUX_PV_STATE_DOWNING,
450 };
451 
452 struct mlx4_ib_demux_pv_ctx {
453 	int port;
454 	int slave;
455 	enum mlx4_ib_demux_pv_state state;
456 	int has_smi;
457 	struct ib_device *ib_dev;
458 	struct ib_cq *cq;
459 	struct ib_pd *pd;
460 	struct work_struct work;
461 	struct workqueue_struct *wq;
462 	struct mlx4_ib_demux_pv_qp qp[2];
463 };
464 
465 struct mlx4_ib_demux_ctx {
466 	struct ib_device *ib_dev;
467 	int port;
468 	struct workqueue_struct *wq;
469 	struct workqueue_struct *ud_wq;
470 	spinlock_t ud_lock;
471 	atomic64_t subnet_prefix;
472 	__be64 guid_cache[128];
473 	struct mlx4_ib_dev *dev;
474 	/* the following lock protects both mcg_table and mcg_mgid0_list */
475 	struct mutex		mcg_table_lock;
476 	struct rb_root		mcg_table;
477 	struct list_head	mcg_mgid0_list;
478 	struct workqueue_struct	*mcg_wq;
479 	struct mlx4_ib_demux_pv_ctx **tun;
480 	atomic_t tid;
481 	int    flushing; /* flushing the work queue */
482 };
483 
484 struct mlx4_ib_sriov {
485 	struct mlx4_ib_demux_ctx demux[MLX4_MAX_PORTS];
486 	struct mlx4_ib_demux_pv_ctx *sqps[MLX4_MAX_PORTS];
487 	/* when using this spinlock you should use "irq" because
488 	 * it may be called from interrupt context.*/
489 	spinlock_t going_down_lock;
490 	int is_going_down;
491 
492 	struct mlx4_sriov_alias_guid alias_guid;
493 
494 	/* CM paravirtualization fields */
495 	struct xarray pv_id_table;
496 	u32 pv_id_next;
497 	spinlock_t id_map_lock;
498 	struct rb_root sl_id_map;
499 	struct list_head cm_list;
500 };
501 
502 struct gid_cache_context {
503 	int real_index;
504 	int refcount;
505 };
506 
507 struct gid_entry {
508 	union ib_gid	gid;
509 	enum ib_gid_type gid_type;
510 	struct gid_cache_context *ctx;
511 };
512 
513 struct mlx4_port_gid_table {
514 	struct gid_entry gids[MLX4_MAX_PORT_GIDS];
515 };
516 
517 struct mlx4_ib_iboe {
518 	spinlock_t		lock;
519 	struct net_device      *netdevs[MLX4_MAX_PORTS];
520 	atomic64_t		mac[MLX4_MAX_PORTS];
521 	struct notifier_block 	nb;
522 	struct mlx4_port_gid_table gids[MLX4_MAX_PORTS];
523 	enum ib_port_state	last_port_state[MLX4_MAX_PORTS];
524 };
525 
526 struct pkey_mgt {
527 	u8			virt2phys_pkey[MLX4_MFUNC_MAX][MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS];
528 	u16			phys_pkey_cache[MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS];
529 	struct list_head	pkey_port_list[MLX4_MFUNC_MAX];
530 	struct kobject	       *device_parent[MLX4_MFUNC_MAX];
531 };
532 
533 struct mlx4_ib_iov_sysfs_attr {
534 	void *ctx;
535 	struct kobject *kobj;
536 	unsigned long data;
537 	u32 entry_num;
538 	char name[15];
539 	struct device_attribute dentry;
540 	struct device *dev;
541 };
542 
543 struct mlx4_ib_iov_sysfs_attr_ar {
544 	struct mlx4_ib_iov_sysfs_attr dentries[3 * NUM_ALIAS_GUID_PER_PORT + 1];
545 };
546 
547 struct mlx4_ib_iov_port {
548 	char name[100];
549 	u8 num;
550 	struct mlx4_ib_dev *dev;
551 	struct list_head list;
552 	struct mlx4_ib_iov_sysfs_attr_ar *dentr_ar;
553 	struct ib_port_attr attr;
554 	struct kobject	*cur_port;
555 	struct kobject	*admin_alias_parent;
556 	struct kobject	*gids_parent;
557 	struct kobject	*pkeys_parent;
558 	struct kobject	*mcgs_parent;
559 	struct mlx4_ib_iov_sysfs_attr mcg_dentry;
560 };
561 
562 struct counter_index {
563 	struct  list_head       list;
564 	u32		index;
565 	u8		allocated;
566 };
567 
568 struct mlx4_ib_counters {
569 	struct list_head        counters_list;
570 	struct mutex            mutex; /* mutex for accessing counters list */
571 	u32			default_counter;
572 };
573 
574 #define MLX4_DIAG_COUNTERS_TYPES 2
575 
576 struct mlx4_ib_diag_counters {
577 	const char **name;
578 	u32 *offset;
579 	u32 num_counters;
580 };
581 
582 struct mlx4_ib_dev {
583 	struct ib_device	ib_dev;
584 	struct mlx4_dev	       *dev;
585 	int			num_ports;
586 	void __iomem	       *uar_map;
587 
588 	struct mlx4_uar		priv_uar;
589 	u32			priv_pdn;
590 	MLX4_DECLARE_DOORBELL_LOCK(uar_lock);
591 
592 	struct ib_mad_agent    *send_agent[MLX4_MAX_PORTS][2];
593 	struct ib_ah	       *sm_ah[MLX4_MAX_PORTS];
594 	spinlock_t		sm_lock;
595 	atomic64_t		sl2vl[MLX4_MAX_PORTS];
596 	struct mlx4_ib_sriov	sriov;
597 
598 	struct mutex		cap_mask_mutex;
599 	bool			ib_active;
600 	struct mlx4_ib_iboe	iboe;
601 	struct mlx4_ib_counters counters_table[MLX4_MAX_PORTS];
602 	int		       *eq_table;
603 	struct kobject	       *iov_parent;
604 	struct kobject	       *ports_parent;
605 	struct kobject	       *dev_ports_parent[MLX4_MFUNC_MAX];
606 	struct mlx4_ib_iov_port	iov_ports[MLX4_MAX_PORTS];
607 	struct pkey_mgt		pkeys;
608 	unsigned long *ib_uc_qpns_bitmap;
609 	int steer_qpn_count;
610 	int steer_qpn_base;
611 	int steering_support;
612 	struct mlx4_ib_qp      *qp1_proxy[MLX4_MAX_PORTS];
613 	/* lock when destroying qp1_proxy and getting netdev events */
614 	struct mutex		qp1_proxy_lock[MLX4_MAX_PORTS];
615 	u8			bond_next_port;
616 	/* protect resources needed as part of reset flow */
617 	spinlock_t		reset_flow_resource_lock;
618 	struct list_head		qp_list;
619 	struct mlx4_ib_diag_counters diag_counters[MLX4_DIAG_COUNTERS_TYPES];
620 };
621 
622 struct ib_event_work {
623 	struct work_struct	work;
624 	struct mlx4_ib_dev	*ib_dev;
625 	struct mlx4_eqe		ib_eqe;
626 	int			port;
627 };
628 
629 struct mlx4_ib_qp_tunnel_init_attr {
630 	struct ib_qp_init_attr init_attr;
631 	int slave;
632 	enum ib_qp_type proxy_qp_type;
633 	u8 port;
634 };
635 
636 struct mlx4_uverbs_ex_query_device {
637 	__u32 comp_mask;
638 	__u32 reserved;
639 };
640 
641 static inline struct mlx4_ib_dev *to_mdev(struct ib_device *ibdev)
642 {
643 	return container_of(ibdev, struct mlx4_ib_dev, ib_dev);
644 }
645 
646 static inline struct mlx4_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext)
647 {
648 	return container_of(ibucontext, struct mlx4_ib_ucontext, ibucontext);
649 }
650 
651 static inline struct mlx4_ib_pd *to_mpd(struct ib_pd *ibpd)
652 {
653 	return container_of(ibpd, struct mlx4_ib_pd, ibpd);
654 }
655 
656 static inline struct mlx4_ib_xrcd *to_mxrcd(struct ib_xrcd *ibxrcd)
657 {
658 	return container_of(ibxrcd, struct mlx4_ib_xrcd, ibxrcd);
659 }
660 
661 static inline struct mlx4_ib_cq *to_mcq(struct ib_cq *ibcq)
662 {
663 	return container_of(ibcq, struct mlx4_ib_cq, ibcq);
664 }
665 
666 static inline struct mlx4_ib_cq *to_mibcq(struct mlx4_cq *mcq)
667 {
668 	return container_of(mcq, struct mlx4_ib_cq, mcq);
669 }
670 
671 static inline struct mlx4_ib_mr *to_mmr(struct ib_mr *ibmr)
672 {
673 	return container_of(ibmr, struct mlx4_ib_mr, ibmr);
674 }
675 
676 static inline struct mlx4_ib_mw *to_mmw(struct ib_mw *ibmw)
677 {
678 	return container_of(ibmw, struct mlx4_ib_mw, ibmw);
679 }
680 
681 static inline struct mlx4_ib_fmr *to_mfmr(struct ib_fmr *ibfmr)
682 {
683 	return container_of(ibfmr, struct mlx4_ib_fmr, ibfmr);
684 }
685 
686 static inline struct mlx4_ib_flow *to_mflow(struct ib_flow *ibflow)
687 {
688 	return container_of(ibflow, struct mlx4_ib_flow, ibflow);
689 }
690 
691 static inline struct mlx4_ib_qp *to_mqp(struct ib_qp *ibqp)
692 {
693 	return container_of(ibqp, struct mlx4_ib_qp, ibqp);
694 }
695 
696 static inline struct mlx4_ib_qp *to_mibqp(struct mlx4_qp *mqp)
697 {
698 	return container_of(mqp, struct mlx4_ib_qp, mqp);
699 }
700 
701 static inline struct mlx4_ib_srq *to_msrq(struct ib_srq *ibsrq)
702 {
703 	return container_of(ibsrq, struct mlx4_ib_srq, ibsrq);
704 }
705 
706 static inline struct mlx4_ib_srq *to_mibsrq(struct mlx4_srq *msrq)
707 {
708 	return container_of(msrq, struct mlx4_ib_srq, msrq);
709 }
710 
711 static inline struct mlx4_ib_ah *to_mah(struct ib_ah *ibah)
712 {
713 	return container_of(ibah, struct mlx4_ib_ah, ibah);
714 }
715 
716 static inline u8 mlx4_ib_bond_next_port(struct mlx4_ib_dev *dev)
717 {
718 	dev->bond_next_port = (dev->bond_next_port + 1) % dev->num_ports;
719 
720 	return dev->bond_next_port + 1;
721 }
722 
723 int mlx4_ib_init_sriov(struct mlx4_ib_dev *dev);
724 void mlx4_ib_close_sriov(struct mlx4_ib_dev *dev);
725 
726 int mlx4_ib_db_map_user(struct ib_udata *udata, unsigned long virt,
727 			struct mlx4_db *db);
728 void mlx4_ib_db_unmap_user(struct mlx4_ib_ucontext *context, struct mlx4_db *db);
729 
730 struct ib_mr *mlx4_ib_get_dma_mr(struct ib_pd *pd, int acc);
731 int mlx4_ib_umem_write_mtt(struct mlx4_ib_dev *dev, struct mlx4_mtt *mtt,
732 			   struct ib_umem *umem);
733 struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
734 				  u64 virt_addr, int access_flags,
735 				  struct ib_udata *udata);
736 int mlx4_ib_dereg_mr(struct ib_mr *mr, struct ib_udata *udata);
737 struct ib_mw *mlx4_ib_alloc_mw(struct ib_pd *pd, enum ib_mw_type type,
738 			       struct ib_udata *udata);
739 int mlx4_ib_dealloc_mw(struct ib_mw *mw);
740 struct ib_mr *mlx4_ib_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
741 			       u32 max_num_sg, struct ib_udata *udata);
742 int mlx4_ib_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents,
743 		      unsigned int *sg_offset);
744 int mlx4_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period);
745 int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata);
746 int mlx4_ib_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
747 		      struct ib_udata *udata);
748 void mlx4_ib_destroy_cq(struct ib_cq *cq, struct ib_udata *udata);
749 int mlx4_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
750 int mlx4_ib_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
751 void __mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
752 void mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
753 
754 int mlx4_ib_create_ah(struct ib_ah *ah, struct rdma_ah_attr *ah_attr, u32 flags,
755 		      struct ib_udata *udata);
756 int mlx4_ib_create_ah_slave(struct ib_ah *ah, struct rdma_ah_attr *ah_attr,
757 			    int slave_sgid_index, u8 *s_mac, u16 vlan_tag);
758 int mlx4_ib_query_ah(struct ib_ah *ibah, struct rdma_ah_attr *ah_attr);
759 void mlx4_ib_destroy_ah(struct ib_ah *ah, u32 flags);
760 
761 int mlx4_ib_create_srq(struct ib_srq *srq, struct ib_srq_init_attr *init_attr,
762 		       struct ib_udata *udata);
763 int mlx4_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
764 		       enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
765 int mlx4_ib_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
766 void mlx4_ib_destroy_srq(struct ib_srq *srq, struct ib_udata *udata);
767 void mlx4_ib_free_srq_wqe(struct mlx4_ib_srq *srq, int wqe_index);
768 int mlx4_ib_post_srq_recv(struct ib_srq *ibsrq, const struct ib_recv_wr *wr,
769 			  const struct ib_recv_wr **bad_wr);
770 
771 struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
772 				struct ib_qp_init_attr *init_attr,
773 				struct ib_udata *udata);
774 int mlx4_ib_destroy_qp(struct ib_qp *qp, struct ib_udata *udata);
775 void mlx4_ib_drain_sq(struct ib_qp *qp);
776 void mlx4_ib_drain_rq(struct ib_qp *qp);
777 int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
778 		      int attr_mask, struct ib_udata *udata);
779 int mlx4_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask,
780 		     struct ib_qp_init_attr *qp_init_attr);
781 int mlx4_ib_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
782 		      const struct ib_send_wr **bad_wr);
783 int mlx4_ib_post_recv(struct ib_qp *ibqp, const struct ib_recv_wr *wr,
784 		      const struct ib_recv_wr **bad_wr);
785 
786 int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int mad_ifc_flags,
787 		 int port, const struct ib_wc *in_wc, const struct ib_grh *in_grh,
788 		 const void *in_mad, void *response_mad);
789 int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags,	u8 port_num,
790 			const struct ib_wc *in_wc, const struct ib_grh *in_grh,
791 			const struct ib_mad_hdr *in, size_t in_mad_size,
792 			struct ib_mad_hdr *out, size_t *out_mad_size,
793 			u16 *out_mad_pkey_index);
794 int mlx4_ib_mad_init(struct mlx4_ib_dev *dev);
795 void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev);
796 
797 struct ib_fmr *mlx4_ib_fmr_alloc(struct ib_pd *pd, int mr_access_flags,
798 				  struct ib_fmr_attr *fmr_attr);
799 int mlx4_ib_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list, int npages,
800 			 u64 iova);
801 int mlx4_ib_unmap_fmr(struct list_head *fmr_list);
802 int mlx4_ib_fmr_dealloc(struct ib_fmr *fmr);
803 int __mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
804 			 struct ib_port_attr *props, int netw_view);
805 int __mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
806 			 u16 *pkey, int netw_view);
807 
808 int __mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
809 			union ib_gid *gid, int netw_view);
810 
811 static inline bool mlx4_ib_ah_grh_present(struct mlx4_ib_ah *ah)
812 {
813 	u8 port = be32_to_cpu(ah->av.ib.port_pd) >> 24 & 3;
814 
815 	if (rdma_port_get_link_layer(ah->ibah.device, port) == IB_LINK_LAYER_ETHERNET)
816 		return true;
817 
818 	return !!(ah->av.ib.g_slid & 0x80);
819 }
820 
821 int mlx4_ib_mcg_port_init(struct mlx4_ib_demux_ctx *ctx);
822 void mlx4_ib_mcg_port_cleanup(struct mlx4_ib_demux_ctx *ctx, int destroy_wq);
823 void clean_vf_mcast(struct mlx4_ib_demux_ctx *ctx, int slave);
824 int mlx4_ib_mcg_init(void);
825 void mlx4_ib_mcg_destroy(void);
826 
827 int mlx4_ib_find_real_gid(struct ib_device *ibdev, u8 port, __be64 guid);
828 
829 int mlx4_ib_mcg_multiplex_handler(struct ib_device *ibdev, int port, int slave,
830 				  struct ib_sa_mad *sa_mad);
831 int mlx4_ib_mcg_demux_handler(struct ib_device *ibdev, int port, int slave,
832 			      struct ib_sa_mad *mad);
833 
834 int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
835 		   union ib_gid *gid);
836 
837 void mlx4_ib_dispatch_event(struct mlx4_ib_dev *dev, u8 port_num,
838 			    enum ib_event_type type);
839 
840 void mlx4_ib_tunnels_update_work(struct work_struct *work);
841 
842 int mlx4_ib_send_to_slave(struct mlx4_ib_dev *dev, int slave, u8 port,
843 			  enum ib_qp_type qpt, struct ib_wc *wc,
844 			  struct ib_grh *grh, struct ib_mad *mad);
845 
846 int mlx4_ib_send_to_wire(struct mlx4_ib_dev *dev, int slave, u8 port,
847 			 enum ib_qp_type dest_qpt, u16 pkey_index, u32 remote_qpn,
848 			 u32 qkey, struct rdma_ah_attr *attr, u8 *s_mac,
849 			 u16 vlan_id, struct ib_mad *mad);
850 
851 __be64 mlx4_ib_get_new_demux_tid(struct mlx4_ib_demux_ctx *ctx);
852 
853 int mlx4_ib_demux_cm_handler(struct ib_device *ibdev, int port, int *slave,
854 		struct ib_mad *mad);
855 
856 int mlx4_ib_multiplex_cm_handler(struct ib_device *ibdev, int port, int slave_id,
857 		struct ib_mad *mad);
858 
859 void mlx4_ib_cm_paravirt_init(struct mlx4_ib_dev *dev);
860 void mlx4_ib_cm_paravirt_clean(struct mlx4_ib_dev *dev, int slave_id);
861 
862 /* alias guid support */
863 void mlx4_ib_init_alias_guid_work(struct mlx4_ib_dev *dev, int port);
864 int mlx4_ib_init_alias_guid_service(struct mlx4_ib_dev *dev);
865 void mlx4_ib_destroy_alias_guid_service(struct mlx4_ib_dev *dev);
866 void mlx4_ib_invalidate_all_guid_record(struct mlx4_ib_dev *dev, int port);
867 
868 void mlx4_ib_notify_slaves_on_guid_change(struct mlx4_ib_dev *dev,
869 					  int block_num,
870 					  u8 port_num, u8 *p_data);
871 
872 void mlx4_ib_update_cache_on_guid_change(struct mlx4_ib_dev *dev,
873 					 int block_num, u8 port_num,
874 					 u8 *p_data);
875 
876 int add_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
877 			    struct attribute *attr);
878 void del_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
879 			     struct attribute *attr);
880 ib_sa_comp_mask mlx4_ib_get_aguid_comp_mask_from_ix(int index);
881 void mlx4_ib_slave_alias_guid_event(struct mlx4_ib_dev *dev, int slave,
882 				    int port, int slave_init);
883 
884 int mlx4_ib_device_register_sysfs(struct mlx4_ib_dev *device) ;
885 
886 void mlx4_ib_device_unregister_sysfs(struct mlx4_ib_dev *device);
887 
888 __be64 mlx4_ib_gen_node_guid(void);
889 
890 int mlx4_ib_steer_qp_alloc(struct mlx4_ib_dev *dev, int count, int *qpn);
891 void mlx4_ib_steer_qp_free(struct mlx4_ib_dev *dev, u32 qpn, int count);
892 int mlx4_ib_steer_qp_reg(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
893 			 int is_attach);
894 int mlx4_ib_rereg_user_mr(struct ib_mr *mr, int flags,
895 			  u64 start, u64 length, u64 virt_addr,
896 			  int mr_access_flags, struct ib_pd *pd,
897 			  struct ib_udata *udata);
898 int mlx4_ib_gid_index_to_real_index(struct mlx4_ib_dev *ibdev,
899 				    const struct ib_gid_attr *attr);
900 
901 void mlx4_sched_ib_sl2vl_update_work(struct mlx4_ib_dev *ibdev,
902 				     int port);
903 
904 void mlx4_ib_sl2vl_update(struct mlx4_ib_dev *mdev, int port);
905 
906 struct ib_wq *mlx4_ib_create_wq(struct ib_pd *pd,
907 				struct ib_wq_init_attr *init_attr,
908 				struct ib_udata *udata);
909 void mlx4_ib_destroy_wq(struct ib_wq *wq, struct ib_udata *udata);
910 int mlx4_ib_modify_wq(struct ib_wq *wq, struct ib_wq_attr *wq_attr,
911 		      u32 wq_attr_mask, struct ib_udata *udata);
912 
913 struct ib_rwq_ind_table
914 *mlx4_ib_create_rwq_ind_table(struct ib_device *device,
915 			      struct ib_rwq_ind_table_init_attr *init_attr,
916 			      struct ib_udata *udata);
917 int mlx4_ib_destroy_rwq_ind_table(struct ib_rwq_ind_table *wq_ind_table);
918 int mlx4_ib_umem_calc_optimal_mtt_size(struct ib_umem *umem, u64 start_va,
919 				       int *num_of_mtts);
920 
921 #endif /* MLX4_IB_H */
922