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 
51 #define MLX4_IB_DRV_NAME	"mlx4_ib"
52 
53 #ifdef pr_fmt
54 #undef pr_fmt
55 #endif
56 #define pr_fmt(fmt)	"<" MLX4_IB_DRV_NAME "> %s: " fmt, __func__
57 
58 #define mlx4_ib_warn(ibdev, format, arg...) \
59 	dev_warn((ibdev)->dev.parent, MLX4_IB_DRV_NAME ": " format, ## arg)
60 
61 enum {
62 	MLX4_IB_SQ_MIN_WQE_SHIFT = 6,
63 	MLX4_IB_MAX_HEADROOM	 = 2048
64 };
65 
66 #define MLX4_IB_SQ_HEADROOM(shift)	((MLX4_IB_MAX_HEADROOM >> (shift)) + 1)
67 #define MLX4_IB_SQ_MAX_SPARE		(MLX4_IB_SQ_HEADROOM(MLX4_IB_SQ_MIN_WQE_SHIFT))
68 
69 /*module param to indicate if SM assigns the alias_GUID*/
70 extern int mlx4_ib_sm_guid_assign;
71 
72 #define MLX4_IB_UC_STEER_QPN_ALIGN 1
73 #define MLX4_IB_UC_MAX_NUM_QPS     256
74 
75 enum hw_bar_type {
76 	HW_BAR_BF,
77 	HW_BAR_DB,
78 	HW_BAR_CLOCK,
79 	HW_BAR_COUNT
80 };
81 
82 struct mlx4_ib_vma_private_data {
83 	struct vm_area_struct *vma;
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 	struct mlx4_ib_vma_private_data hw_bar_info[HW_BAR_COUNT];
92 	struct list_head	wqn_ranges_list;
93 	struct mutex		wqn_ranges_mutex; /* protect wqn_ranges_list */
94 };
95 
96 struct mlx4_ib_pd {
97 	struct ib_pd		ibpd;
98 	u32			pdn;
99 };
100 
101 struct mlx4_ib_xrcd {
102 	struct ib_xrcd		ibxrcd;
103 	u32			xrcdn;
104 	struct ib_pd	       *pd;
105 	struct ib_cq	       *cq;
106 };
107 
108 struct mlx4_ib_cq_buf {
109 	struct mlx4_buf		buf;
110 	struct mlx4_mtt		mtt;
111 	int			entry_size;
112 };
113 
114 struct mlx4_ib_cq_resize {
115 	struct mlx4_ib_cq_buf	buf;
116 	int			cqe;
117 };
118 
119 struct mlx4_ib_cq {
120 	struct ib_cq		ibcq;
121 	struct mlx4_cq		mcq;
122 	struct mlx4_ib_cq_buf	buf;
123 	struct mlx4_ib_cq_resize *resize_buf;
124 	struct mlx4_db		db;
125 	spinlock_t		lock;
126 	struct mutex		resize_mutex;
127 	struct ib_umem	       *umem;
128 	struct ib_umem	       *resize_umem;
129 	int			create_flags;
130 	/* List of qps that it serves.*/
131 	struct list_head		send_qp_list;
132 	struct list_head		recv_qp_list;
133 };
134 
135 #define MLX4_MR_PAGES_ALIGN 0x40
136 
137 struct mlx4_ib_mr {
138 	struct ib_mr		ibmr;
139 	__be64			*pages;
140 	dma_addr_t		page_map;
141 	u32			npages;
142 	u32			max_pages;
143 	struct mlx4_mr		mmr;
144 	struct ib_umem	       *umem;
145 	size_t			page_map_size;
146 };
147 
148 struct mlx4_ib_mw {
149 	struct ib_mw		ibmw;
150 	struct mlx4_mw		mmw;
151 };
152 
153 struct mlx4_ib_fmr {
154 	struct ib_fmr           ibfmr;
155 	struct mlx4_fmr         mfmr;
156 };
157 
158 #define MAX_REGS_PER_FLOW 2
159 
160 struct mlx4_flow_reg_id {
161 	u64 id;
162 	u64 mirror;
163 };
164 
165 struct mlx4_ib_flow {
166 	struct ib_flow ibflow;
167 	/* translating DMFS verbs sniffer rule to FW API requires two reg IDs */
168 	struct mlx4_flow_reg_id reg_id[MAX_REGS_PER_FLOW];
169 };
170 
171 struct mlx4_ib_wq {
172 	u64		       *wrid;
173 	spinlock_t		lock;
174 	int			wqe_cnt;
175 	int			max_post;
176 	int			max_gs;
177 	int			offset;
178 	int			wqe_shift;
179 	unsigned		head;
180 	unsigned		tail;
181 };
182 
183 enum {
184 	MLX4_IB_QP_CREATE_ROCE_V2_GSI = IB_QP_CREATE_RESERVED_START
185 };
186 
187 enum mlx4_ib_qp_flags {
188 	MLX4_IB_QP_LSO = IB_QP_CREATE_IPOIB_UD_LSO,
189 	MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK = IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK,
190 	MLX4_IB_QP_NETIF = IB_QP_CREATE_NETIF_QP,
191 
192 	/* Mellanox specific flags start from IB_QP_CREATE_RESERVED_START */
193 	MLX4_IB_ROCE_V2_GSI_QP = MLX4_IB_QP_CREATE_ROCE_V2_GSI,
194 	MLX4_IB_SRIOV_TUNNEL_QP = 1 << 30,
195 	MLX4_IB_SRIOV_SQP = 1 << 31,
196 };
197 
198 struct mlx4_ib_gid_entry {
199 	struct list_head	list;
200 	union ib_gid		gid;
201 	int			added;
202 	u8			port;
203 };
204 
205 enum mlx4_ib_qp_type {
206 	/*
207 	 * IB_QPT_SMI and IB_QPT_GSI have to be the first two entries
208 	 * here (and in that order) since the MAD layer uses them as
209 	 * indices into a 2-entry table.
210 	 */
211 	MLX4_IB_QPT_SMI = IB_QPT_SMI,
212 	MLX4_IB_QPT_GSI = IB_QPT_GSI,
213 
214 	MLX4_IB_QPT_RC = IB_QPT_RC,
215 	MLX4_IB_QPT_UC = IB_QPT_UC,
216 	MLX4_IB_QPT_UD = IB_QPT_UD,
217 	MLX4_IB_QPT_RAW_IPV6 = IB_QPT_RAW_IPV6,
218 	MLX4_IB_QPT_RAW_ETHERTYPE = IB_QPT_RAW_ETHERTYPE,
219 	MLX4_IB_QPT_RAW_PACKET = IB_QPT_RAW_PACKET,
220 	MLX4_IB_QPT_XRC_INI = IB_QPT_XRC_INI,
221 	MLX4_IB_QPT_XRC_TGT = IB_QPT_XRC_TGT,
222 
223 	MLX4_IB_QPT_PROXY_SMI_OWNER	= 1 << 16,
224 	MLX4_IB_QPT_PROXY_SMI		= 1 << 17,
225 	MLX4_IB_QPT_PROXY_GSI		= 1 << 18,
226 	MLX4_IB_QPT_TUN_SMI_OWNER	= 1 << 19,
227 	MLX4_IB_QPT_TUN_SMI		= 1 << 20,
228 	MLX4_IB_QPT_TUN_GSI		= 1 << 21,
229 };
230 
231 #define MLX4_IB_QPT_ANY_SRIOV	(MLX4_IB_QPT_PROXY_SMI_OWNER | \
232 	MLX4_IB_QPT_PROXY_SMI | MLX4_IB_QPT_PROXY_GSI | MLX4_IB_QPT_TUN_SMI_OWNER | \
233 	MLX4_IB_QPT_TUN_SMI | MLX4_IB_QPT_TUN_GSI)
234 
235 enum mlx4_ib_mad_ifc_flags {
236 	MLX4_MAD_IFC_IGNORE_MKEY	= 1,
237 	MLX4_MAD_IFC_IGNORE_BKEY	= 2,
238 	MLX4_MAD_IFC_IGNORE_KEYS	= (MLX4_MAD_IFC_IGNORE_MKEY |
239 					   MLX4_MAD_IFC_IGNORE_BKEY),
240 	MLX4_MAD_IFC_NET_VIEW		= 4,
241 };
242 
243 enum {
244 	MLX4_NUM_TUNNEL_BUFS		= 256,
245 };
246 
247 struct mlx4_ib_tunnel_header {
248 	struct mlx4_av av;
249 	__be32 remote_qpn;
250 	__be32 qkey;
251 	__be16 vlan;
252 	u8 mac[6];
253 	__be16 pkey_index;
254 	u8 reserved[6];
255 };
256 
257 struct mlx4_ib_buf {
258 	void *addr;
259 	dma_addr_t map;
260 };
261 
262 struct mlx4_rcv_tunnel_hdr {
263 	__be32 flags_src_qp; /* flags[6:5] is defined for VLANs:
264 			      * 0x0 - no vlan was in the packet
265 			      * 0x01 - C-VLAN was in the packet */
266 	u8 g_ml_path; /* gid bit stands for ipv6/4 header in RoCE */
267 	u8 reserved;
268 	__be16 pkey_index;
269 	__be16 sl_vid;
270 	__be16 slid_mac_47_32;
271 	__be32 mac_31_0;
272 };
273 
274 struct mlx4_ib_proxy_sqp_hdr {
275 	struct ib_grh grh;
276 	struct mlx4_rcv_tunnel_hdr tun;
277 }  __packed;
278 
279 struct mlx4_roce_smac_vlan_info {
280 	u64 smac;
281 	int smac_index;
282 	int smac_port;
283 	u64 candidate_smac;
284 	int candidate_smac_index;
285 	int candidate_smac_port;
286 	u16 vid;
287 	int vlan_index;
288 	int vlan_port;
289 	u16 candidate_vid;
290 	int candidate_vlan_index;
291 	int candidate_vlan_port;
292 	int update_vid;
293 };
294 
295 struct mlx4_wqn_range {
296 	int			base_wqn;
297 	int			size;
298 	int			refcount;
299 	bool			dirty;
300 	struct list_head	list;
301 };
302 
303 struct mlx4_ib_rss {
304 	unsigned int		base_qpn_tbl_sz;
305 	u8			flags;
306 	u8			rss_key[MLX4_EN_RSS_KEY_SIZE];
307 };
308 
309 struct mlx4_ib_qp {
310 	union {
311 		struct ib_qp	ibqp;
312 		struct ib_wq	ibwq;
313 	};
314 	struct mlx4_qp		mqp;
315 	struct mlx4_buf		buf;
316 
317 	struct mlx4_db		db;
318 	struct mlx4_ib_wq	rq;
319 
320 	u32			doorbell_qpn;
321 	__be32			sq_signal_bits;
322 	unsigned		sq_next_wqe;
323 	int			sq_max_wqes_per_wr;
324 	int			sq_spare_wqes;
325 	struct mlx4_ib_wq	sq;
326 
327 	enum mlx4_ib_qp_type	mlx4_ib_qp_type;
328 	struct ib_umem	       *umem;
329 	struct mlx4_mtt		mtt;
330 	int			buf_size;
331 	struct mutex		mutex;
332 	u16			xrcdn;
333 	u32			flags;
334 	u8			port;
335 	u8			alt_port;
336 	u8			atomic_rd_en;
337 	u8			resp_depth;
338 	u8			sq_no_prefetch;
339 	u8			state;
340 	int			mlx_type;
341 	u32			inl_recv_sz;
342 	struct list_head	gid_list;
343 	struct list_head	steering_rules;
344 	struct mlx4_ib_buf	*sqp_proxy_rcv;
345 	struct mlx4_roce_smac_vlan_info pri;
346 	struct mlx4_roce_smac_vlan_info alt;
347 	u64			reg_id;
348 	struct list_head	qps_list;
349 	struct list_head	cq_recv_list;
350 	struct list_head	cq_send_list;
351 	struct counter_index	*counter_index;
352 	struct mlx4_wqn_range	*wqn_range;
353 	/* Number of RSS QP parents that uses this WQ */
354 	u32			rss_usecnt;
355 	struct mlx4_ib_rss	*rss_ctx;
356 };
357 
358 struct mlx4_ib_srq {
359 	struct ib_srq		ibsrq;
360 	struct mlx4_srq		msrq;
361 	struct mlx4_buf		buf;
362 	struct mlx4_db		db;
363 	u64		       *wrid;
364 	spinlock_t		lock;
365 	int			head;
366 	int			tail;
367 	u16			wqe_ctr;
368 	struct ib_umem	       *umem;
369 	struct mlx4_mtt		mtt;
370 	struct mutex		mutex;
371 };
372 
373 struct mlx4_ib_ah {
374 	struct ib_ah		ibah;
375 	union mlx4_ext_av       av;
376 };
377 
378 /****************************************/
379 /* alias guid support */
380 /****************************************/
381 #define NUM_PORT_ALIAS_GUID		2
382 #define NUM_ALIAS_GUID_IN_REC		8
383 #define NUM_ALIAS_GUID_REC_IN_PORT	16
384 #define GUID_REC_SIZE			8
385 #define NUM_ALIAS_GUID_PER_PORT		128
386 #define MLX4_NOT_SET_GUID		(0x00LL)
387 #define MLX4_GUID_FOR_DELETE_VAL	(~(0x00LL))
388 
389 enum mlx4_guid_alias_rec_status {
390 	MLX4_GUID_INFO_STATUS_IDLE,
391 	MLX4_GUID_INFO_STATUS_SET,
392 };
393 
394 #define GUID_STATE_NEED_PORT_INIT 0x01
395 
396 enum mlx4_guid_alias_rec_method {
397 	MLX4_GUID_INFO_RECORD_SET	= IB_MGMT_METHOD_SET,
398 	MLX4_GUID_INFO_RECORD_DELETE	= IB_SA_METHOD_DELETE,
399 };
400 
401 struct mlx4_sriov_alias_guid_info_rec_det {
402 	u8 all_recs[GUID_REC_SIZE * NUM_ALIAS_GUID_IN_REC];
403 	ib_sa_comp_mask guid_indexes; /*indicates what from the 8 records are valid*/
404 	enum mlx4_guid_alias_rec_status status; /*indicates the administraively status of the record.*/
405 	unsigned int guids_retry_schedule[NUM_ALIAS_GUID_IN_REC];
406 	u64 time_to_run;
407 };
408 
409 struct mlx4_sriov_alias_guid_port_rec_det {
410 	struct mlx4_sriov_alias_guid_info_rec_det all_rec_per_port[NUM_ALIAS_GUID_REC_IN_PORT];
411 	struct workqueue_struct *wq;
412 	struct delayed_work alias_guid_work;
413 	u8 port;
414 	u32 state_flags;
415 	struct mlx4_sriov_alias_guid *parent;
416 	struct list_head cb_list;
417 };
418 
419 struct mlx4_sriov_alias_guid {
420 	struct mlx4_sriov_alias_guid_port_rec_det ports_guid[MLX4_MAX_PORTS];
421 	spinlock_t ag_work_lock;
422 	struct ib_sa_client *sa_client;
423 };
424 
425 struct mlx4_ib_demux_work {
426 	struct work_struct	work;
427 	struct mlx4_ib_dev     *dev;
428 	int			slave;
429 	int			do_init;
430 	u8			port;
431 
432 };
433 
434 struct mlx4_ib_tun_tx_buf {
435 	struct mlx4_ib_buf buf;
436 	struct ib_ah *ah;
437 };
438 
439 struct mlx4_ib_demux_pv_qp {
440 	struct ib_qp *qp;
441 	enum ib_qp_type proxy_qpt;
442 	struct mlx4_ib_buf *ring;
443 	struct mlx4_ib_tun_tx_buf *tx_ring;
444 	spinlock_t tx_lock;
445 	unsigned tx_ix_head;
446 	unsigned tx_ix_tail;
447 };
448 
449 enum mlx4_ib_demux_pv_state {
450 	DEMUX_PV_STATE_DOWN,
451 	DEMUX_PV_STATE_STARTING,
452 	DEMUX_PV_STATE_ACTIVE,
453 	DEMUX_PV_STATE_DOWNING,
454 };
455 
456 struct mlx4_ib_demux_pv_ctx {
457 	int port;
458 	int slave;
459 	enum mlx4_ib_demux_pv_state state;
460 	int has_smi;
461 	struct ib_device *ib_dev;
462 	struct ib_cq *cq;
463 	struct ib_pd *pd;
464 	struct work_struct work;
465 	struct workqueue_struct *wq;
466 	struct mlx4_ib_demux_pv_qp qp[2];
467 };
468 
469 struct mlx4_ib_demux_ctx {
470 	struct ib_device *ib_dev;
471 	int port;
472 	struct workqueue_struct *wq;
473 	struct workqueue_struct *ud_wq;
474 	spinlock_t ud_lock;
475 	atomic64_t subnet_prefix;
476 	__be64 guid_cache[128];
477 	struct mlx4_ib_dev *dev;
478 	/* the following lock protects both mcg_table and mcg_mgid0_list */
479 	struct mutex		mcg_table_lock;
480 	struct rb_root		mcg_table;
481 	struct list_head	mcg_mgid0_list;
482 	struct workqueue_struct	*mcg_wq;
483 	struct mlx4_ib_demux_pv_ctx **tun;
484 	atomic_t tid;
485 	int    flushing; /* flushing the work queue */
486 };
487 
488 struct mlx4_ib_sriov {
489 	struct mlx4_ib_demux_ctx demux[MLX4_MAX_PORTS];
490 	struct mlx4_ib_demux_pv_ctx *sqps[MLX4_MAX_PORTS];
491 	/* when using this spinlock you should use "irq" because
492 	 * it may be called from interrupt context.*/
493 	spinlock_t going_down_lock;
494 	int is_going_down;
495 
496 	struct mlx4_sriov_alias_guid alias_guid;
497 
498 	/* CM paravirtualization fields */
499 	struct list_head cm_list;
500 	spinlock_t id_map_lock;
501 	struct rb_root sl_id_map;
502 	struct idr pv_id_table;
503 };
504 
505 struct gid_cache_context {
506 	int real_index;
507 	int refcount;
508 };
509 
510 struct gid_entry {
511 	union ib_gid	gid;
512 	enum ib_gid_type gid_type;
513 	struct gid_cache_context *ctx;
514 };
515 
516 struct mlx4_port_gid_table {
517 	struct gid_entry gids[MLX4_MAX_PORT_GIDS];
518 };
519 
520 struct mlx4_ib_iboe {
521 	spinlock_t		lock;
522 	struct net_device      *netdevs[MLX4_MAX_PORTS];
523 	atomic64_t		mac[MLX4_MAX_PORTS];
524 	struct notifier_block 	nb;
525 	struct mlx4_port_gid_table gids[MLX4_MAX_PORTS];
526 };
527 
528 struct pkey_mgt {
529 	u8			virt2phys_pkey[MLX4_MFUNC_MAX][MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS];
530 	u16			phys_pkey_cache[MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS];
531 	struct list_head	pkey_port_list[MLX4_MFUNC_MAX];
532 	struct kobject	       *device_parent[MLX4_MFUNC_MAX];
533 };
534 
535 struct mlx4_ib_iov_sysfs_attr {
536 	void *ctx;
537 	struct kobject *kobj;
538 	unsigned long data;
539 	u32 entry_num;
540 	char name[15];
541 	struct device_attribute dentry;
542 	struct device *dev;
543 };
544 
545 struct mlx4_ib_iov_sysfs_attr_ar {
546 	struct mlx4_ib_iov_sysfs_attr dentries[3 * NUM_ALIAS_GUID_PER_PORT + 1];
547 };
548 
549 struct mlx4_ib_iov_port {
550 	char name[100];
551 	u8 num;
552 	struct mlx4_ib_dev *dev;
553 	struct list_head list;
554 	struct mlx4_ib_iov_sysfs_attr_ar *dentr_ar;
555 	struct ib_port_attr attr;
556 	struct kobject	*cur_port;
557 	struct kobject	*admin_alias_parent;
558 	struct kobject	*gids_parent;
559 	struct kobject	*pkeys_parent;
560 	struct kobject	*mcgs_parent;
561 	struct mlx4_ib_iov_sysfs_attr mcg_dentry;
562 };
563 
564 struct counter_index {
565 	struct  list_head       list;
566 	u32		index;
567 	u8		allocated;
568 };
569 
570 struct mlx4_ib_counters {
571 	struct list_head        counters_list;
572 	struct mutex            mutex; /* mutex for accessing counters list */
573 	u32			default_counter;
574 };
575 
576 #define MLX4_DIAG_COUNTERS_TYPES 2
577 
578 struct mlx4_ib_diag_counters {
579 	const char **name;
580 	u32 *offset;
581 	u32 num_counters;
582 };
583 
584 struct mlx4_ib_dev {
585 	struct ib_device	ib_dev;
586 	struct mlx4_dev	       *dev;
587 	int			num_ports;
588 	void __iomem	       *uar_map;
589 
590 	struct mlx4_uar		priv_uar;
591 	u32			priv_pdn;
592 	MLX4_DECLARE_DOORBELL_LOCK(uar_lock);
593 
594 	struct ib_mad_agent    *send_agent[MLX4_MAX_PORTS][2];
595 	struct ib_ah	       *sm_ah[MLX4_MAX_PORTS];
596 	spinlock_t		sm_lock;
597 	atomic64_t		sl2vl[MLX4_MAX_PORTS];
598 	struct mlx4_ib_sriov	sriov;
599 
600 	struct mutex		cap_mask_mutex;
601 	bool			ib_active;
602 	struct mlx4_ib_iboe	iboe;
603 	struct mlx4_ib_counters counters_table[MLX4_MAX_PORTS];
604 	int		       *eq_table;
605 	struct kobject	       *iov_parent;
606 	struct kobject	       *ports_parent;
607 	struct kobject	       *dev_ports_parent[MLX4_MFUNC_MAX];
608 	struct mlx4_ib_iov_port	iov_ports[MLX4_MAX_PORTS];
609 	struct pkey_mgt		pkeys;
610 	unsigned long *ib_uc_qpns_bitmap;
611 	int steer_qpn_count;
612 	int steer_qpn_base;
613 	int steering_support;
614 	struct mlx4_ib_qp      *qp1_proxy[MLX4_MAX_PORTS];
615 	/* lock when destroying qp1_proxy and getting netdev events */
616 	struct mutex		qp1_proxy_lock[MLX4_MAX_PORTS];
617 	u8			bond_next_port;
618 	/* protect resources needed as part of reset flow */
619 	spinlock_t		reset_flow_resource_lock;
620 	struct list_head		qp_list;
621 	struct mlx4_ib_diag_counters diag_counters[MLX4_DIAG_COUNTERS_TYPES];
622 };
623 
624 struct ib_event_work {
625 	struct work_struct	work;
626 	struct mlx4_ib_dev	*ib_dev;
627 	struct mlx4_eqe		ib_eqe;
628 	int			port;
629 };
630 
631 struct mlx4_ib_qp_tunnel_init_attr {
632 	struct ib_qp_init_attr init_attr;
633 	int slave;
634 	enum ib_qp_type proxy_qp_type;
635 	u8 port;
636 };
637 
638 struct mlx4_uverbs_ex_query_device {
639 	__u32 comp_mask;
640 	__u32 reserved;
641 };
642 
643 enum query_device_resp_mask {
644 	QUERY_DEVICE_RESP_MASK_TIMESTAMP = 1UL << 0,
645 };
646 
647 struct mlx4_uverbs_ex_query_device_resp {
648 	__u32 comp_mask;
649 	__u32 response_length;
650 	__u64 hca_core_clock_offset;
651 	__u32 max_inl_recv_sz;
652 	__u32 reserved;
653 };
654 
655 static inline struct mlx4_ib_dev *to_mdev(struct ib_device *ibdev)
656 {
657 	return container_of(ibdev, struct mlx4_ib_dev, ib_dev);
658 }
659 
660 static inline struct mlx4_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext)
661 {
662 	return container_of(ibucontext, struct mlx4_ib_ucontext, ibucontext);
663 }
664 
665 static inline struct mlx4_ib_pd *to_mpd(struct ib_pd *ibpd)
666 {
667 	return container_of(ibpd, struct mlx4_ib_pd, ibpd);
668 }
669 
670 static inline struct mlx4_ib_xrcd *to_mxrcd(struct ib_xrcd *ibxrcd)
671 {
672 	return container_of(ibxrcd, struct mlx4_ib_xrcd, ibxrcd);
673 }
674 
675 static inline struct mlx4_ib_cq *to_mcq(struct ib_cq *ibcq)
676 {
677 	return container_of(ibcq, struct mlx4_ib_cq, ibcq);
678 }
679 
680 static inline struct mlx4_ib_cq *to_mibcq(struct mlx4_cq *mcq)
681 {
682 	return container_of(mcq, struct mlx4_ib_cq, mcq);
683 }
684 
685 static inline struct mlx4_ib_mr *to_mmr(struct ib_mr *ibmr)
686 {
687 	return container_of(ibmr, struct mlx4_ib_mr, ibmr);
688 }
689 
690 static inline struct mlx4_ib_mw *to_mmw(struct ib_mw *ibmw)
691 {
692 	return container_of(ibmw, struct mlx4_ib_mw, ibmw);
693 }
694 
695 static inline struct mlx4_ib_fmr *to_mfmr(struct ib_fmr *ibfmr)
696 {
697 	return container_of(ibfmr, struct mlx4_ib_fmr, ibfmr);
698 }
699 
700 static inline struct mlx4_ib_flow *to_mflow(struct ib_flow *ibflow)
701 {
702 	return container_of(ibflow, struct mlx4_ib_flow, ibflow);
703 }
704 
705 static inline struct mlx4_ib_qp *to_mqp(struct ib_qp *ibqp)
706 {
707 	return container_of(ibqp, struct mlx4_ib_qp, ibqp);
708 }
709 
710 static inline struct mlx4_ib_qp *to_mibqp(struct mlx4_qp *mqp)
711 {
712 	return container_of(mqp, struct mlx4_ib_qp, mqp);
713 }
714 
715 static inline struct mlx4_ib_srq *to_msrq(struct ib_srq *ibsrq)
716 {
717 	return container_of(ibsrq, struct mlx4_ib_srq, ibsrq);
718 }
719 
720 static inline struct mlx4_ib_srq *to_mibsrq(struct mlx4_srq *msrq)
721 {
722 	return container_of(msrq, struct mlx4_ib_srq, msrq);
723 }
724 
725 static inline struct mlx4_ib_ah *to_mah(struct ib_ah *ibah)
726 {
727 	return container_of(ibah, struct mlx4_ib_ah, ibah);
728 }
729 
730 static inline u8 mlx4_ib_bond_next_port(struct mlx4_ib_dev *dev)
731 {
732 	dev->bond_next_port = (dev->bond_next_port + 1) % dev->num_ports;
733 
734 	return dev->bond_next_port + 1;
735 }
736 
737 int mlx4_ib_init_sriov(struct mlx4_ib_dev *dev);
738 void mlx4_ib_close_sriov(struct mlx4_ib_dev *dev);
739 
740 int mlx4_ib_db_map_user(struct mlx4_ib_ucontext *context, unsigned long virt,
741 			struct mlx4_db *db);
742 void mlx4_ib_db_unmap_user(struct mlx4_ib_ucontext *context, struct mlx4_db *db);
743 
744 struct ib_mr *mlx4_ib_get_dma_mr(struct ib_pd *pd, int acc);
745 int mlx4_ib_umem_write_mtt(struct mlx4_ib_dev *dev, struct mlx4_mtt *mtt,
746 			   struct ib_umem *umem);
747 struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
748 				  u64 virt_addr, int access_flags,
749 				  struct ib_udata *udata);
750 int mlx4_ib_dereg_mr(struct ib_mr *mr);
751 struct ib_mw *mlx4_ib_alloc_mw(struct ib_pd *pd, enum ib_mw_type type,
752 			       struct ib_udata *udata);
753 int mlx4_ib_dealloc_mw(struct ib_mw *mw);
754 struct ib_mr *mlx4_ib_alloc_mr(struct ib_pd *pd,
755 			       enum ib_mr_type mr_type,
756 			       u32 max_num_sg);
757 int mlx4_ib_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents,
758 		      unsigned int *sg_offset);
759 int mlx4_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period);
760 int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata);
761 struct ib_cq *mlx4_ib_create_cq(struct ib_device *ibdev,
762 				const struct ib_cq_init_attr *attr,
763 				struct ib_ucontext *context,
764 				struct ib_udata *udata);
765 int mlx4_ib_destroy_cq(struct ib_cq *cq);
766 int mlx4_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
767 int mlx4_ib_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
768 void __mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
769 void mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
770 
771 struct ib_ah *mlx4_ib_create_ah(struct ib_pd *pd, struct rdma_ah_attr *ah_attr,
772 				struct ib_udata *udata);
773 int mlx4_ib_query_ah(struct ib_ah *ibah, struct rdma_ah_attr *ah_attr);
774 int mlx4_ib_destroy_ah(struct ib_ah *ah);
775 
776 struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd,
777 				  struct ib_srq_init_attr *init_attr,
778 				  struct ib_udata *udata);
779 int mlx4_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
780 		       enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
781 int mlx4_ib_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
782 int mlx4_ib_destroy_srq(struct ib_srq *srq);
783 void mlx4_ib_free_srq_wqe(struct mlx4_ib_srq *srq, int wqe_index);
784 int mlx4_ib_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
785 			  struct ib_recv_wr **bad_wr);
786 
787 struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
788 				struct ib_qp_init_attr *init_attr,
789 				struct ib_udata *udata);
790 int mlx4_ib_destroy_qp(struct ib_qp *qp);
791 int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
792 		      int attr_mask, struct ib_udata *udata);
793 int mlx4_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask,
794 		     struct ib_qp_init_attr *qp_init_attr);
795 int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
796 		      struct ib_send_wr **bad_wr);
797 int mlx4_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
798 		      struct ib_recv_wr **bad_wr);
799 
800 int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int mad_ifc_flags,
801 		 int port, const struct ib_wc *in_wc, const struct ib_grh *in_grh,
802 		 const void *in_mad, void *response_mad);
803 int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags,	u8 port_num,
804 			const struct ib_wc *in_wc, const struct ib_grh *in_grh,
805 			const struct ib_mad_hdr *in, size_t in_mad_size,
806 			struct ib_mad_hdr *out, size_t *out_mad_size,
807 			u16 *out_mad_pkey_index);
808 int mlx4_ib_mad_init(struct mlx4_ib_dev *dev);
809 void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev);
810 
811 struct ib_fmr *mlx4_ib_fmr_alloc(struct ib_pd *pd, int mr_access_flags,
812 				  struct ib_fmr_attr *fmr_attr);
813 int mlx4_ib_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list, int npages,
814 			 u64 iova);
815 int mlx4_ib_unmap_fmr(struct list_head *fmr_list);
816 int mlx4_ib_fmr_dealloc(struct ib_fmr *fmr);
817 int __mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
818 			 struct ib_port_attr *props, int netw_view);
819 int __mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
820 			 u16 *pkey, int netw_view);
821 
822 int __mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
823 			union ib_gid *gid, int netw_view);
824 
825 static inline bool mlx4_ib_ah_grh_present(struct mlx4_ib_ah *ah)
826 {
827 	u8 port = be32_to_cpu(ah->av.ib.port_pd) >> 24 & 3;
828 
829 	if (rdma_port_get_link_layer(ah->ibah.device, port) == IB_LINK_LAYER_ETHERNET)
830 		return true;
831 
832 	return !!(ah->av.ib.g_slid & 0x80);
833 }
834 
835 int mlx4_ib_mcg_port_init(struct mlx4_ib_demux_ctx *ctx);
836 void mlx4_ib_mcg_port_cleanup(struct mlx4_ib_demux_ctx *ctx, int destroy_wq);
837 void clean_vf_mcast(struct mlx4_ib_demux_ctx *ctx, int slave);
838 int mlx4_ib_mcg_init(void);
839 void mlx4_ib_mcg_destroy(void);
840 
841 int mlx4_ib_find_real_gid(struct ib_device *ibdev, u8 port, __be64 guid);
842 
843 int mlx4_ib_mcg_multiplex_handler(struct ib_device *ibdev, int port, int slave,
844 				  struct ib_sa_mad *sa_mad);
845 int mlx4_ib_mcg_demux_handler(struct ib_device *ibdev, int port, int slave,
846 			      struct ib_sa_mad *mad);
847 
848 int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
849 		   union ib_gid *gid);
850 
851 void mlx4_ib_dispatch_event(struct mlx4_ib_dev *dev, u8 port_num,
852 			    enum ib_event_type type);
853 
854 void mlx4_ib_tunnels_update_work(struct work_struct *work);
855 
856 int mlx4_ib_send_to_slave(struct mlx4_ib_dev *dev, int slave, u8 port,
857 			  enum ib_qp_type qpt, struct ib_wc *wc,
858 			  struct ib_grh *grh, struct ib_mad *mad);
859 
860 int mlx4_ib_send_to_wire(struct mlx4_ib_dev *dev, int slave, u8 port,
861 			 enum ib_qp_type dest_qpt, u16 pkey_index, u32 remote_qpn,
862 			 u32 qkey, struct rdma_ah_attr *attr, u8 *s_mac,
863 			 u16 vlan_id, struct ib_mad *mad);
864 
865 __be64 mlx4_ib_get_new_demux_tid(struct mlx4_ib_demux_ctx *ctx);
866 
867 int mlx4_ib_demux_cm_handler(struct ib_device *ibdev, int port, int *slave,
868 		struct ib_mad *mad);
869 
870 int mlx4_ib_multiplex_cm_handler(struct ib_device *ibdev, int port, int slave_id,
871 		struct ib_mad *mad);
872 
873 void mlx4_ib_cm_paravirt_init(struct mlx4_ib_dev *dev);
874 void mlx4_ib_cm_paravirt_clean(struct mlx4_ib_dev *dev, int slave_id);
875 
876 /* alias guid support */
877 void mlx4_ib_init_alias_guid_work(struct mlx4_ib_dev *dev, int port);
878 int mlx4_ib_init_alias_guid_service(struct mlx4_ib_dev *dev);
879 void mlx4_ib_destroy_alias_guid_service(struct mlx4_ib_dev *dev);
880 void mlx4_ib_invalidate_all_guid_record(struct mlx4_ib_dev *dev, int port);
881 
882 void mlx4_ib_notify_slaves_on_guid_change(struct mlx4_ib_dev *dev,
883 					  int block_num,
884 					  u8 port_num, u8 *p_data);
885 
886 void mlx4_ib_update_cache_on_guid_change(struct mlx4_ib_dev *dev,
887 					 int block_num, u8 port_num,
888 					 u8 *p_data);
889 
890 int add_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
891 			    struct attribute *attr);
892 void del_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
893 			     struct attribute *attr);
894 ib_sa_comp_mask mlx4_ib_get_aguid_comp_mask_from_ix(int index);
895 void mlx4_ib_slave_alias_guid_event(struct mlx4_ib_dev *dev, int slave,
896 				    int port, int slave_init);
897 
898 int mlx4_ib_device_register_sysfs(struct mlx4_ib_dev *device) ;
899 
900 void mlx4_ib_device_unregister_sysfs(struct mlx4_ib_dev *device);
901 
902 __be64 mlx4_ib_gen_node_guid(void);
903 
904 int mlx4_ib_steer_qp_alloc(struct mlx4_ib_dev *dev, int count, int *qpn);
905 void mlx4_ib_steer_qp_free(struct mlx4_ib_dev *dev, u32 qpn, int count);
906 int mlx4_ib_steer_qp_reg(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
907 			 int is_attach);
908 int mlx4_ib_rereg_user_mr(struct ib_mr *mr, int flags,
909 			  u64 start, u64 length, u64 virt_addr,
910 			  int mr_access_flags, struct ib_pd *pd,
911 			  struct ib_udata *udata);
912 int mlx4_ib_gid_index_to_real_index(struct mlx4_ib_dev *ibdev,
913 				    u8 port_num, int index);
914 
915 void mlx4_sched_ib_sl2vl_update_work(struct mlx4_ib_dev *ibdev,
916 				     int port);
917 
918 void mlx4_ib_sl2vl_update(struct mlx4_ib_dev *mdev, int port);
919 
920 struct ib_wq *mlx4_ib_create_wq(struct ib_pd *pd,
921 				struct ib_wq_init_attr *init_attr,
922 				struct ib_udata *udata);
923 int mlx4_ib_destroy_wq(struct ib_wq *wq);
924 int mlx4_ib_modify_wq(struct ib_wq *wq, struct ib_wq_attr *wq_attr,
925 		      u32 wq_attr_mask, struct ib_udata *udata);
926 
927 struct ib_rwq_ind_table
928 *mlx4_ib_create_rwq_ind_table(struct ib_device *device,
929 			      struct ib_rwq_ind_table_init_attr *init_attr,
930 			      struct ib_udata *udata);
931 int mlx4_ib_destroy_rwq_ind_table(struct ib_rwq_ind_table *wq_ind_table);
932 
933 #endif /* MLX4_IB_H */
934