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 
50 #define MLX4_IB_DRV_NAME	"mlx4_ib"
51 
52 #ifdef pr_fmt
53 #undef pr_fmt
54 #endif
55 #define pr_fmt(fmt)	"<" MLX4_IB_DRV_NAME "> %s: " fmt, __func__
56 
57 #define mlx4_ib_warn(ibdev, format, arg...) \
58 	dev_warn((ibdev)->dma_device, MLX4_IB_DRV_NAME ": " format, ## arg)
59 
60 enum {
61 	MLX4_IB_SQ_MIN_WQE_SHIFT = 6,
62 	MLX4_IB_MAX_HEADROOM	 = 2048
63 };
64 
65 #define MLX4_IB_SQ_HEADROOM(shift)	((MLX4_IB_MAX_HEADROOM >> (shift)) + 1)
66 #define MLX4_IB_SQ_MAX_SPARE		(MLX4_IB_SQ_HEADROOM(MLX4_IB_SQ_MIN_WQE_SHIFT))
67 
68 /*module param to indicate if SM assigns the alias_GUID*/
69 extern int mlx4_ib_sm_guid_assign;
70 
71 #define MLX4_IB_UC_STEER_QPN_ALIGN 1
72 #define MLX4_IB_UC_MAX_NUM_QPS     256
73 struct mlx4_ib_ucontext {
74 	struct ib_ucontext	ibucontext;
75 	struct mlx4_uar		uar;
76 	struct list_head	db_page_list;
77 	struct mutex		db_page_mutex;
78 };
79 
80 struct mlx4_ib_pd {
81 	struct ib_pd		ibpd;
82 	u32			pdn;
83 };
84 
85 struct mlx4_ib_xrcd {
86 	struct ib_xrcd		ibxrcd;
87 	u32			xrcdn;
88 	struct ib_pd	       *pd;
89 	struct ib_cq	       *cq;
90 };
91 
92 struct mlx4_ib_cq_buf {
93 	struct mlx4_buf		buf;
94 	struct mlx4_mtt		mtt;
95 	int			entry_size;
96 };
97 
98 struct mlx4_ib_cq_resize {
99 	struct mlx4_ib_cq_buf	buf;
100 	int			cqe;
101 };
102 
103 struct mlx4_ib_cq {
104 	struct ib_cq		ibcq;
105 	struct mlx4_cq		mcq;
106 	struct mlx4_ib_cq_buf	buf;
107 	struct mlx4_ib_cq_resize *resize_buf;
108 	struct mlx4_db		db;
109 	spinlock_t		lock;
110 	struct mutex		resize_mutex;
111 	struct ib_umem	       *umem;
112 	struct ib_umem	       *resize_umem;
113 };
114 
115 struct mlx4_ib_mr {
116 	struct ib_mr		ibmr;
117 	struct mlx4_mr		mmr;
118 	struct ib_umem	       *umem;
119 };
120 
121 struct mlx4_ib_mw {
122 	struct ib_mw		ibmw;
123 	struct mlx4_mw		mmw;
124 };
125 
126 struct mlx4_ib_fast_reg_page_list {
127 	struct ib_fast_reg_page_list	ibfrpl;
128 	__be64			       *mapped_page_list;
129 	dma_addr_t			map;
130 };
131 
132 struct mlx4_ib_fmr {
133 	struct ib_fmr           ibfmr;
134 	struct mlx4_fmr         mfmr;
135 };
136 
137 struct mlx4_ib_flow {
138 	struct ib_flow ibflow;
139 	/* translating DMFS verbs sniffer rule to FW API requires two reg IDs */
140 	u64 reg_id[2];
141 };
142 
143 struct mlx4_ib_wq {
144 	u64		       *wrid;
145 	spinlock_t		lock;
146 	int			wqe_cnt;
147 	int			max_post;
148 	int			max_gs;
149 	int			offset;
150 	int			wqe_shift;
151 	unsigned		head;
152 	unsigned		tail;
153 };
154 
155 enum mlx4_ib_qp_flags {
156 	MLX4_IB_QP_LSO = IB_QP_CREATE_IPOIB_UD_LSO,
157 	MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK = IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK,
158 	MLX4_IB_QP_NETIF = IB_QP_CREATE_NETIF_QP,
159 	MLX4_IB_SRIOV_TUNNEL_QP = 1 << 30,
160 	MLX4_IB_SRIOV_SQP = 1 << 31,
161 };
162 
163 struct mlx4_ib_gid_entry {
164 	struct list_head	list;
165 	union ib_gid		gid;
166 	int			added;
167 	u8			port;
168 };
169 
170 enum mlx4_ib_qp_type {
171 	/*
172 	 * IB_QPT_SMI and IB_QPT_GSI have to be the first two entries
173 	 * here (and in that order) since the MAD layer uses them as
174 	 * indices into a 2-entry table.
175 	 */
176 	MLX4_IB_QPT_SMI = IB_QPT_SMI,
177 	MLX4_IB_QPT_GSI = IB_QPT_GSI,
178 
179 	MLX4_IB_QPT_RC = IB_QPT_RC,
180 	MLX4_IB_QPT_UC = IB_QPT_UC,
181 	MLX4_IB_QPT_UD = IB_QPT_UD,
182 	MLX4_IB_QPT_RAW_IPV6 = IB_QPT_RAW_IPV6,
183 	MLX4_IB_QPT_RAW_ETHERTYPE = IB_QPT_RAW_ETHERTYPE,
184 	MLX4_IB_QPT_RAW_PACKET = IB_QPT_RAW_PACKET,
185 	MLX4_IB_QPT_XRC_INI = IB_QPT_XRC_INI,
186 	MLX4_IB_QPT_XRC_TGT = IB_QPT_XRC_TGT,
187 
188 	MLX4_IB_QPT_PROXY_SMI_OWNER	= 1 << 16,
189 	MLX4_IB_QPT_PROXY_SMI		= 1 << 17,
190 	MLX4_IB_QPT_PROXY_GSI		= 1 << 18,
191 	MLX4_IB_QPT_TUN_SMI_OWNER	= 1 << 19,
192 	MLX4_IB_QPT_TUN_SMI		= 1 << 20,
193 	MLX4_IB_QPT_TUN_GSI		= 1 << 21,
194 };
195 
196 #define MLX4_IB_QPT_ANY_SRIOV	(MLX4_IB_QPT_PROXY_SMI_OWNER | \
197 	MLX4_IB_QPT_PROXY_SMI | MLX4_IB_QPT_PROXY_GSI | MLX4_IB_QPT_TUN_SMI_OWNER | \
198 	MLX4_IB_QPT_TUN_SMI | MLX4_IB_QPT_TUN_GSI)
199 
200 enum mlx4_ib_mad_ifc_flags {
201 	MLX4_MAD_IFC_IGNORE_MKEY	= 1,
202 	MLX4_MAD_IFC_IGNORE_BKEY	= 2,
203 	MLX4_MAD_IFC_IGNORE_KEYS	= (MLX4_MAD_IFC_IGNORE_MKEY |
204 					   MLX4_MAD_IFC_IGNORE_BKEY),
205 	MLX4_MAD_IFC_NET_VIEW		= 4,
206 };
207 
208 enum {
209 	MLX4_NUM_TUNNEL_BUFS		= 256,
210 };
211 
212 struct mlx4_ib_tunnel_header {
213 	struct mlx4_av av;
214 	__be32 remote_qpn;
215 	__be32 qkey;
216 	__be16 vlan;
217 	u8 mac[6];
218 	__be16 pkey_index;
219 	u8 reserved[6];
220 };
221 
222 struct mlx4_ib_buf {
223 	void *addr;
224 	dma_addr_t map;
225 };
226 
227 struct mlx4_rcv_tunnel_hdr {
228 	__be32 flags_src_qp; /* flags[6:5] is defined for VLANs:
229 			      * 0x0 - no vlan was in the packet
230 			      * 0x01 - C-VLAN was in the packet */
231 	u8 g_ml_path; /* gid bit stands for ipv6/4 header in RoCE */
232 	u8 reserved;
233 	__be16 pkey_index;
234 	__be16 sl_vid;
235 	__be16 slid_mac_47_32;
236 	__be32 mac_31_0;
237 };
238 
239 struct mlx4_ib_proxy_sqp_hdr {
240 	struct ib_grh grh;
241 	struct mlx4_rcv_tunnel_hdr tun;
242 }  __packed;
243 
244 struct mlx4_roce_smac_vlan_info {
245 	u64 smac;
246 	int smac_index;
247 	int smac_port;
248 	u64 candidate_smac;
249 	int candidate_smac_index;
250 	int candidate_smac_port;
251 	u16 vid;
252 	int vlan_index;
253 	int vlan_port;
254 	u16 candidate_vid;
255 	int candidate_vlan_index;
256 	int candidate_vlan_port;
257 	int update_vid;
258 };
259 
260 struct mlx4_ib_qp {
261 	struct ib_qp		ibqp;
262 	struct mlx4_qp		mqp;
263 	struct mlx4_buf		buf;
264 
265 	struct mlx4_db		db;
266 	struct mlx4_ib_wq	rq;
267 
268 	u32			doorbell_qpn;
269 	__be32			sq_signal_bits;
270 	unsigned		sq_next_wqe;
271 	int			sq_max_wqes_per_wr;
272 	int			sq_spare_wqes;
273 	struct mlx4_ib_wq	sq;
274 
275 	enum mlx4_ib_qp_type	mlx4_ib_qp_type;
276 	struct ib_umem	       *umem;
277 	struct mlx4_mtt		mtt;
278 	int			buf_size;
279 	struct mutex		mutex;
280 	u16			xrcdn;
281 	u32			flags;
282 	u8			port;
283 	u8			alt_port;
284 	u8			atomic_rd_en;
285 	u8			resp_depth;
286 	u8			sq_no_prefetch;
287 	u8			state;
288 	int			mlx_type;
289 	struct list_head	gid_list;
290 	struct list_head	steering_rules;
291 	struct mlx4_ib_buf	*sqp_proxy_rcv;
292 	struct mlx4_roce_smac_vlan_info pri;
293 	struct mlx4_roce_smac_vlan_info alt;
294 	u64			reg_id;
295 };
296 
297 struct mlx4_ib_srq {
298 	struct ib_srq		ibsrq;
299 	struct mlx4_srq		msrq;
300 	struct mlx4_buf		buf;
301 	struct mlx4_db		db;
302 	u64		       *wrid;
303 	spinlock_t		lock;
304 	int			head;
305 	int			tail;
306 	u16			wqe_ctr;
307 	struct ib_umem	       *umem;
308 	struct mlx4_mtt		mtt;
309 	struct mutex		mutex;
310 };
311 
312 struct mlx4_ib_ah {
313 	struct ib_ah		ibah;
314 	union mlx4_ext_av       av;
315 };
316 
317 /****************************************/
318 /* alias guid support */
319 /****************************************/
320 #define NUM_PORT_ALIAS_GUID		2
321 #define NUM_ALIAS_GUID_IN_REC		8
322 #define NUM_ALIAS_GUID_REC_IN_PORT	16
323 #define GUID_REC_SIZE			8
324 #define NUM_ALIAS_GUID_PER_PORT		128
325 #define MLX4_NOT_SET_GUID		(0x00LL)
326 #define MLX4_GUID_FOR_DELETE_VAL	(~(0x00LL))
327 
328 enum mlx4_guid_alias_rec_status {
329 	MLX4_GUID_INFO_STATUS_IDLE,
330 	MLX4_GUID_INFO_STATUS_SET,
331 	MLX4_GUID_INFO_STATUS_PENDING,
332 };
333 
334 enum mlx4_guid_alias_rec_ownership {
335 	MLX4_GUID_DRIVER_ASSIGN,
336 	MLX4_GUID_SYSADMIN_ASSIGN,
337 	MLX4_GUID_NONE_ASSIGN, /*init state of each record*/
338 };
339 
340 enum mlx4_guid_alias_rec_method {
341 	MLX4_GUID_INFO_RECORD_SET	= IB_MGMT_METHOD_SET,
342 	MLX4_GUID_INFO_RECORD_DELETE	= IB_SA_METHOD_DELETE,
343 };
344 
345 struct mlx4_sriov_alias_guid_info_rec_det {
346 	u8 all_recs[GUID_REC_SIZE * NUM_ALIAS_GUID_IN_REC];
347 	ib_sa_comp_mask guid_indexes; /*indicates what from the 8 records are valid*/
348 	enum mlx4_guid_alias_rec_status status; /*indicates the administraively status of the record.*/
349 	u8 method; /*set or delete*/
350 	enum mlx4_guid_alias_rec_ownership ownership; /*indicates who assign that alias_guid record*/
351 };
352 
353 struct mlx4_sriov_alias_guid_port_rec_det {
354 	struct mlx4_sriov_alias_guid_info_rec_det all_rec_per_port[NUM_ALIAS_GUID_REC_IN_PORT];
355 	struct workqueue_struct *wq;
356 	struct delayed_work alias_guid_work;
357 	u8 port;
358 	struct mlx4_sriov_alias_guid *parent;
359 	struct list_head cb_list;
360 };
361 
362 struct mlx4_sriov_alias_guid {
363 	struct mlx4_sriov_alias_guid_port_rec_det ports_guid[MLX4_MAX_PORTS];
364 	spinlock_t ag_work_lock;
365 	struct ib_sa_client *sa_client;
366 };
367 
368 struct mlx4_ib_demux_work {
369 	struct work_struct	work;
370 	struct mlx4_ib_dev     *dev;
371 	int			slave;
372 	int			do_init;
373 	u8			port;
374 
375 };
376 
377 struct mlx4_ib_tun_tx_buf {
378 	struct mlx4_ib_buf buf;
379 	struct ib_ah *ah;
380 };
381 
382 struct mlx4_ib_demux_pv_qp {
383 	struct ib_qp *qp;
384 	enum ib_qp_type proxy_qpt;
385 	struct mlx4_ib_buf *ring;
386 	struct mlx4_ib_tun_tx_buf *tx_ring;
387 	spinlock_t tx_lock;
388 	unsigned tx_ix_head;
389 	unsigned tx_ix_tail;
390 };
391 
392 enum mlx4_ib_demux_pv_state {
393 	DEMUX_PV_STATE_DOWN,
394 	DEMUX_PV_STATE_STARTING,
395 	DEMUX_PV_STATE_ACTIVE,
396 	DEMUX_PV_STATE_DOWNING,
397 };
398 
399 struct mlx4_ib_demux_pv_ctx {
400 	int port;
401 	int slave;
402 	enum mlx4_ib_demux_pv_state state;
403 	int has_smi;
404 	struct ib_device *ib_dev;
405 	struct ib_cq *cq;
406 	struct ib_pd *pd;
407 	struct ib_mr *mr;
408 	struct work_struct work;
409 	struct workqueue_struct *wq;
410 	struct mlx4_ib_demux_pv_qp qp[2];
411 };
412 
413 struct mlx4_ib_demux_ctx {
414 	struct ib_device *ib_dev;
415 	int port;
416 	struct workqueue_struct *wq;
417 	struct workqueue_struct *ud_wq;
418 	spinlock_t ud_lock;
419 	__be64 subnet_prefix;
420 	__be64 guid_cache[128];
421 	struct mlx4_ib_dev *dev;
422 	/* the following lock protects both mcg_table and mcg_mgid0_list */
423 	struct mutex		mcg_table_lock;
424 	struct rb_root		mcg_table;
425 	struct list_head	mcg_mgid0_list;
426 	struct workqueue_struct	*mcg_wq;
427 	struct mlx4_ib_demux_pv_ctx **tun;
428 	atomic_t tid;
429 	int    flushing; /* flushing the work queue */
430 };
431 
432 struct mlx4_ib_sriov {
433 	struct mlx4_ib_demux_ctx demux[MLX4_MAX_PORTS];
434 	struct mlx4_ib_demux_pv_ctx *sqps[MLX4_MAX_PORTS];
435 	/* when using this spinlock you should use "irq" because
436 	 * it may be called from interrupt context.*/
437 	spinlock_t going_down_lock;
438 	int is_going_down;
439 
440 	struct mlx4_sriov_alias_guid alias_guid;
441 
442 	/* CM paravirtualization fields */
443 	struct list_head cm_list;
444 	spinlock_t id_map_lock;
445 	struct rb_root sl_id_map;
446 	struct idr pv_id_table;
447 };
448 
449 struct mlx4_ib_iboe {
450 	spinlock_t		lock;
451 	struct net_device      *netdevs[MLX4_MAX_PORTS];
452 	struct net_device      *masters[MLX4_MAX_PORTS];
453 	struct notifier_block 	nb;
454 	struct notifier_block	nb_inet;
455 	struct notifier_block	nb_inet6;
456 	union ib_gid		gid_table[MLX4_MAX_PORTS][128];
457 };
458 
459 struct pkey_mgt {
460 	u8			virt2phys_pkey[MLX4_MFUNC_MAX][MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS];
461 	u16			phys_pkey_cache[MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS];
462 	struct list_head	pkey_port_list[MLX4_MFUNC_MAX];
463 	struct kobject	       *device_parent[MLX4_MFUNC_MAX];
464 };
465 
466 struct mlx4_ib_iov_sysfs_attr {
467 	void *ctx;
468 	struct kobject *kobj;
469 	unsigned long data;
470 	u32 entry_num;
471 	char name[15];
472 	struct device_attribute dentry;
473 	struct device *dev;
474 };
475 
476 struct mlx4_ib_iov_sysfs_attr_ar {
477 	struct mlx4_ib_iov_sysfs_attr dentries[3 * NUM_ALIAS_GUID_PER_PORT + 1];
478 };
479 
480 struct mlx4_ib_iov_port {
481 	char name[100];
482 	u8 num;
483 	struct mlx4_ib_dev *dev;
484 	struct list_head list;
485 	struct mlx4_ib_iov_sysfs_attr_ar *dentr_ar;
486 	struct ib_port_attr attr;
487 	struct kobject	*cur_port;
488 	struct kobject	*admin_alias_parent;
489 	struct kobject	*gids_parent;
490 	struct kobject	*pkeys_parent;
491 	struct kobject	*mcgs_parent;
492 	struct mlx4_ib_iov_sysfs_attr mcg_dentry;
493 };
494 
495 struct mlx4_ib_dev {
496 	struct ib_device	ib_dev;
497 	struct mlx4_dev	       *dev;
498 	int			num_ports;
499 	void __iomem	       *uar_map;
500 
501 	struct mlx4_uar		priv_uar;
502 	u32			priv_pdn;
503 	MLX4_DECLARE_DOORBELL_LOCK(uar_lock);
504 
505 	struct ib_mad_agent    *send_agent[MLX4_MAX_PORTS][2];
506 	struct ib_ah	       *sm_ah[MLX4_MAX_PORTS];
507 	spinlock_t		sm_lock;
508 	struct mlx4_ib_sriov	sriov;
509 
510 	struct mutex		cap_mask_mutex;
511 	bool			ib_active;
512 	struct mlx4_ib_iboe	iboe;
513 	int			counters[MLX4_MAX_PORTS];
514 	int		       *eq_table;
515 	int			eq_added;
516 	struct kobject	       *iov_parent;
517 	struct kobject	       *ports_parent;
518 	struct kobject	       *dev_ports_parent[MLX4_MFUNC_MAX];
519 	struct mlx4_ib_iov_port	iov_ports[MLX4_MAX_PORTS];
520 	struct pkey_mgt		pkeys;
521 	unsigned long *ib_uc_qpns_bitmap;
522 	int steer_qpn_count;
523 	int steer_qpn_base;
524 	int steering_support;
525 };
526 
527 struct ib_event_work {
528 	struct work_struct	work;
529 	struct mlx4_ib_dev	*ib_dev;
530 	struct mlx4_eqe		ib_eqe;
531 };
532 
533 struct mlx4_ib_qp_tunnel_init_attr {
534 	struct ib_qp_init_attr init_attr;
535 	int slave;
536 	enum ib_qp_type proxy_qp_type;
537 	u8 port;
538 };
539 
540 static inline struct mlx4_ib_dev *to_mdev(struct ib_device *ibdev)
541 {
542 	return container_of(ibdev, struct mlx4_ib_dev, ib_dev);
543 }
544 
545 static inline struct mlx4_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext)
546 {
547 	return container_of(ibucontext, struct mlx4_ib_ucontext, ibucontext);
548 }
549 
550 static inline struct mlx4_ib_pd *to_mpd(struct ib_pd *ibpd)
551 {
552 	return container_of(ibpd, struct mlx4_ib_pd, ibpd);
553 }
554 
555 static inline struct mlx4_ib_xrcd *to_mxrcd(struct ib_xrcd *ibxrcd)
556 {
557 	return container_of(ibxrcd, struct mlx4_ib_xrcd, ibxrcd);
558 }
559 
560 static inline struct mlx4_ib_cq *to_mcq(struct ib_cq *ibcq)
561 {
562 	return container_of(ibcq, struct mlx4_ib_cq, ibcq);
563 }
564 
565 static inline struct mlx4_ib_cq *to_mibcq(struct mlx4_cq *mcq)
566 {
567 	return container_of(mcq, struct mlx4_ib_cq, mcq);
568 }
569 
570 static inline struct mlx4_ib_mr *to_mmr(struct ib_mr *ibmr)
571 {
572 	return container_of(ibmr, struct mlx4_ib_mr, ibmr);
573 }
574 
575 static inline struct mlx4_ib_mw *to_mmw(struct ib_mw *ibmw)
576 {
577 	return container_of(ibmw, struct mlx4_ib_mw, ibmw);
578 }
579 
580 static inline struct mlx4_ib_fast_reg_page_list *to_mfrpl(struct ib_fast_reg_page_list *ibfrpl)
581 {
582 	return container_of(ibfrpl, struct mlx4_ib_fast_reg_page_list, ibfrpl);
583 }
584 
585 static inline struct mlx4_ib_fmr *to_mfmr(struct ib_fmr *ibfmr)
586 {
587 	return container_of(ibfmr, struct mlx4_ib_fmr, ibfmr);
588 }
589 
590 static inline struct mlx4_ib_flow *to_mflow(struct ib_flow *ibflow)
591 {
592 	return container_of(ibflow, struct mlx4_ib_flow, ibflow);
593 }
594 
595 static inline struct mlx4_ib_qp *to_mqp(struct ib_qp *ibqp)
596 {
597 	return container_of(ibqp, struct mlx4_ib_qp, ibqp);
598 }
599 
600 static inline struct mlx4_ib_qp *to_mibqp(struct mlx4_qp *mqp)
601 {
602 	return container_of(mqp, struct mlx4_ib_qp, mqp);
603 }
604 
605 static inline struct mlx4_ib_srq *to_msrq(struct ib_srq *ibsrq)
606 {
607 	return container_of(ibsrq, struct mlx4_ib_srq, ibsrq);
608 }
609 
610 static inline struct mlx4_ib_srq *to_mibsrq(struct mlx4_srq *msrq)
611 {
612 	return container_of(msrq, struct mlx4_ib_srq, msrq);
613 }
614 
615 static inline struct mlx4_ib_ah *to_mah(struct ib_ah *ibah)
616 {
617 	return container_of(ibah, struct mlx4_ib_ah, ibah);
618 }
619 
620 int mlx4_ib_init_sriov(struct mlx4_ib_dev *dev);
621 void mlx4_ib_close_sriov(struct mlx4_ib_dev *dev);
622 
623 int mlx4_ib_db_map_user(struct mlx4_ib_ucontext *context, unsigned long virt,
624 			struct mlx4_db *db);
625 void mlx4_ib_db_unmap_user(struct mlx4_ib_ucontext *context, struct mlx4_db *db);
626 
627 struct ib_mr *mlx4_ib_get_dma_mr(struct ib_pd *pd, int acc);
628 int mlx4_ib_umem_write_mtt(struct mlx4_ib_dev *dev, struct mlx4_mtt *mtt,
629 			   struct ib_umem *umem);
630 struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
631 				  u64 virt_addr, int access_flags,
632 				  struct ib_udata *udata);
633 int mlx4_ib_dereg_mr(struct ib_mr *mr);
634 struct ib_mw *mlx4_ib_alloc_mw(struct ib_pd *pd, enum ib_mw_type type);
635 int mlx4_ib_bind_mw(struct ib_qp *qp, struct ib_mw *mw,
636 		    struct ib_mw_bind *mw_bind);
637 int mlx4_ib_dealloc_mw(struct ib_mw *mw);
638 struct ib_mr *mlx4_ib_alloc_fast_reg_mr(struct ib_pd *pd,
639 					int max_page_list_len);
640 struct ib_fast_reg_page_list *mlx4_ib_alloc_fast_reg_page_list(struct ib_device *ibdev,
641 							       int page_list_len);
642 void mlx4_ib_free_fast_reg_page_list(struct ib_fast_reg_page_list *page_list);
643 
644 int mlx4_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period);
645 int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata);
646 struct ib_cq *mlx4_ib_create_cq(struct ib_device *ibdev, int entries, int vector,
647 				struct ib_ucontext *context,
648 				struct ib_udata *udata);
649 int mlx4_ib_destroy_cq(struct ib_cq *cq);
650 int mlx4_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
651 int mlx4_ib_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
652 void __mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
653 void mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
654 
655 struct ib_ah *mlx4_ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr);
656 int mlx4_ib_query_ah(struct ib_ah *ibah, struct ib_ah_attr *ah_attr);
657 int mlx4_ib_destroy_ah(struct ib_ah *ah);
658 
659 struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd,
660 				  struct ib_srq_init_attr *init_attr,
661 				  struct ib_udata *udata);
662 int mlx4_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
663 		       enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
664 int mlx4_ib_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
665 int mlx4_ib_destroy_srq(struct ib_srq *srq);
666 void mlx4_ib_free_srq_wqe(struct mlx4_ib_srq *srq, int wqe_index);
667 int mlx4_ib_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
668 			  struct ib_recv_wr **bad_wr);
669 
670 struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
671 				struct ib_qp_init_attr *init_attr,
672 				struct ib_udata *udata);
673 int mlx4_ib_destroy_qp(struct ib_qp *qp);
674 int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
675 		      int attr_mask, struct ib_udata *udata);
676 int mlx4_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask,
677 		     struct ib_qp_init_attr *qp_init_attr);
678 int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
679 		      struct ib_send_wr **bad_wr);
680 int mlx4_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
681 		      struct ib_recv_wr **bad_wr);
682 
683 int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int mad_ifc_flags,
684 		 int port, struct ib_wc *in_wc, struct ib_grh *in_grh,
685 		 void *in_mad, void *response_mad);
686 int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags,	u8 port_num,
687 			struct ib_wc *in_wc, struct ib_grh *in_grh,
688 			struct ib_mad *in_mad, struct ib_mad *out_mad);
689 int mlx4_ib_mad_init(struct mlx4_ib_dev *dev);
690 void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev);
691 
692 struct ib_fmr *mlx4_ib_fmr_alloc(struct ib_pd *pd, int mr_access_flags,
693 				  struct ib_fmr_attr *fmr_attr);
694 int mlx4_ib_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list, int npages,
695 			 u64 iova);
696 int mlx4_ib_unmap_fmr(struct list_head *fmr_list);
697 int mlx4_ib_fmr_dealloc(struct ib_fmr *fmr);
698 int __mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
699 			 struct ib_port_attr *props, int netw_view);
700 int __mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
701 			 u16 *pkey, int netw_view);
702 
703 int __mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
704 			union ib_gid *gid, int netw_view);
705 
706 static inline bool mlx4_ib_ah_grh_present(struct mlx4_ib_ah *ah)
707 {
708 	u8 port = be32_to_cpu(ah->av.ib.port_pd) >> 24 & 3;
709 
710 	if (rdma_port_get_link_layer(ah->ibah.device, port) == IB_LINK_LAYER_ETHERNET)
711 		return true;
712 
713 	return !!(ah->av.ib.g_slid & 0x80);
714 }
715 
716 int mlx4_ib_mcg_port_init(struct mlx4_ib_demux_ctx *ctx);
717 void mlx4_ib_mcg_port_cleanup(struct mlx4_ib_demux_ctx *ctx, int destroy_wq);
718 void clean_vf_mcast(struct mlx4_ib_demux_ctx *ctx, int slave);
719 int mlx4_ib_mcg_init(void);
720 void mlx4_ib_mcg_destroy(void);
721 
722 int mlx4_ib_find_real_gid(struct ib_device *ibdev, u8 port, __be64 guid);
723 
724 int mlx4_ib_mcg_multiplex_handler(struct ib_device *ibdev, int port, int slave,
725 				  struct ib_sa_mad *sa_mad);
726 int mlx4_ib_mcg_demux_handler(struct ib_device *ibdev, int port, int slave,
727 			      struct ib_sa_mad *mad);
728 
729 int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
730 		   union ib_gid *gid);
731 
732 void mlx4_ib_dispatch_event(struct mlx4_ib_dev *dev, u8 port_num,
733 			    enum ib_event_type type);
734 
735 void mlx4_ib_tunnels_update_work(struct work_struct *work);
736 
737 int mlx4_ib_send_to_slave(struct mlx4_ib_dev *dev, int slave, u8 port,
738 			  enum ib_qp_type qpt, struct ib_wc *wc,
739 			  struct ib_grh *grh, struct ib_mad *mad);
740 
741 int mlx4_ib_send_to_wire(struct mlx4_ib_dev *dev, int slave, u8 port,
742 			 enum ib_qp_type dest_qpt, u16 pkey_index, u32 remote_qpn,
743 			 u32 qkey, struct ib_ah_attr *attr, u8 *s_mac,
744 			 struct ib_mad *mad);
745 
746 __be64 mlx4_ib_get_new_demux_tid(struct mlx4_ib_demux_ctx *ctx);
747 
748 int mlx4_ib_demux_cm_handler(struct ib_device *ibdev, int port, int *slave,
749 		struct ib_mad *mad);
750 
751 int mlx4_ib_multiplex_cm_handler(struct ib_device *ibdev, int port, int slave_id,
752 		struct ib_mad *mad);
753 
754 void mlx4_ib_cm_paravirt_init(struct mlx4_ib_dev *dev);
755 void mlx4_ib_cm_paravirt_clean(struct mlx4_ib_dev *dev, int slave_id);
756 
757 /* alias guid support */
758 void mlx4_ib_init_alias_guid_work(struct mlx4_ib_dev *dev, int port);
759 int mlx4_ib_init_alias_guid_service(struct mlx4_ib_dev *dev);
760 void mlx4_ib_destroy_alias_guid_service(struct mlx4_ib_dev *dev);
761 void mlx4_ib_invalidate_all_guid_record(struct mlx4_ib_dev *dev, int port);
762 
763 void mlx4_ib_notify_slaves_on_guid_change(struct mlx4_ib_dev *dev,
764 					  int block_num,
765 					  u8 port_num, u8 *p_data);
766 
767 void mlx4_ib_update_cache_on_guid_change(struct mlx4_ib_dev *dev,
768 					 int block_num, u8 port_num,
769 					 u8 *p_data);
770 
771 int add_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
772 			    struct attribute *attr);
773 void del_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
774 			     struct attribute *attr);
775 ib_sa_comp_mask mlx4_ib_get_aguid_comp_mask_from_ix(int index);
776 
777 int mlx4_ib_device_register_sysfs(struct mlx4_ib_dev *device) ;
778 
779 void mlx4_ib_device_unregister_sysfs(struct mlx4_ib_dev *device);
780 
781 __be64 mlx4_ib_gen_node_guid(void);
782 
783 int mlx4_ib_steer_qp_alloc(struct mlx4_ib_dev *dev, int count, int *qpn);
784 void mlx4_ib_steer_qp_free(struct mlx4_ib_dev *dev, u32 qpn, int count);
785 int mlx4_ib_steer_qp_reg(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
786 			 int is_attach);
787 
788 #endif /* MLX4_IB_H */
789