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/rbtree.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)->dma_device, MLX4_IB_DRV_NAME ": " format, ## arg)
60
61#define mlx4_ib_info(ibdev, format, arg...) \
62	dev_info((ibdev)->dma_device, MLX4_IB_DRV_NAME ": " format, ## arg)
63
64enum {
65	MLX4_IB_SQ_MIN_WQE_SHIFT = 6,
66	MLX4_IB_MAX_HEADROOM	 = 2048
67};
68
69#define MLX4_IB_SQ_HEADROOM(shift)	((MLX4_IB_MAX_HEADROOM >> (shift)) + 1)
70#define MLX4_IB_SQ_MAX_SPARE		(MLX4_IB_SQ_HEADROOM(MLX4_IB_SQ_MIN_WQE_SHIFT))
71
72/*module param to indicate if SM assigns the alias_GUID*/
73extern int mlx4_ib_sm_guid_assign;
74#ifdef __linux__
75extern struct proc_dir_entry *mlx4_mrs_dir_entry;
76#endif
77
78#define MLX4_IB_UC_STEER_QPN_ALIGN 1
79#define MLX4_IB_UC_MAX_NUM_QPS     (256 * 1024)
80
81
82#define MLX4_IB_MMAP_CMD_MASK 0xFF
83#define MLX4_IB_MMAP_CMD_BITS 8
84
85struct mlx4_ib_ucontext {
86	struct ib_ucontext	ibucontext;
87	struct mlx4_uar		uar;
88	struct list_head	db_page_list;
89	struct mutex		db_page_mutex;
90};
91
92struct mlx4_ib_pd {
93	struct ib_pd		ibpd;
94	u32			pdn;
95};
96
97struct mlx4_ib_xrcd {
98	struct ib_xrcd		ibxrcd;
99	u32			xrcdn;
100	struct ib_pd	       *pd;
101	struct ib_cq	       *cq;
102};
103
104struct mlx4_ib_cq_buf {
105	struct mlx4_buf		buf;
106	struct mlx4_mtt		mtt;
107	int			entry_size;
108};
109
110struct mlx4_ib_cq_resize {
111	struct mlx4_ib_cq_buf	buf;
112	int			cqe;
113};
114
115struct mlx4_shared_mr_info {
116	int mr_id;
117	struct ib_umem	       *umem;
118};
119
120struct mlx4_ib_cq {
121	struct ib_cq		ibcq;
122	struct mlx4_cq		mcq;
123	struct mlx4_ib_cq_buf	buf;
124	struct mlx4_ib_cq_resize *resize_buf;
125	struct mlx4_db		db;
126	spinlock_t		lock;
127	struct mutex		resize_mutex;
128	struct ib_umem	       *umem;
129	struct ib_umem	       *resize_umem;
130};
131
132struct mlx4_ib_mr {
133	struct ib_mr		ibmr;
134	struct mlx4_mr		mmr;
135	struct ib_umem	       *umem;
136	struct mlx4_shared_mr_info	*smr_info;
137};
138
139struct mlx4_ib_fast_reg_page_list {
140	struct ib_fast_reg_page_list	ibfrpl;
141	__be64			       *mapped_page_list;
142	dma_addr_t			map;
143};
144
145struct mlx4_ib_fmr {
146	struct ib_fmr           ibfmr;
147	struct mlx4_fmr         mfmr;
148};
149
150struct mlx4_ib_wq {
151	u64		       *wrid;
152	spinlock_t		lock;
153	int			wqe_cnt;
154	int			max_post;
155	int			max_gs;
156	int			offset;
157	int			wqe_shift;
158	unsigned		head;
159	unsigned		tail;
160};
161
162enum mlx4_ib_qp_flags {
163	MLX4_IB_QP_LSO = IB_QP_CREATE_IPOIB_UD_LSO,
164	MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK = IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK,
165	MLX4_IB_QP_NETIF = IB_QP_CREATE_NETIF_QP,
166	MLX4_IB_SRIOV_TUNNEL_QP = 1 << 30,
167	MLX4_IB_SRIOV_SQP = 1 << 31,
168};
169
170struct mlx4_ib_gid_entry {
171	struct list_head	list;
172	union ib_gid		gid;
173	int			added;
174	u8			port;
175};
176
177enum mlx4_ib_mmap_cmd {
178	MLX4_IB_MMAP_UAR_PAGE		= 0,
179	MLX4_IB_MMAP_BLUE_FLAME_PAGE	= 1,
180	MLX4_IB_MMAP_GET_CONTIGUOUS_PAGES	= 2,
181};
182
183enum mlx4_ib_qp_type {
184	/*
185	 * IB_QPT_SMI and IB_QPT_GSI have to be the first two entries
186	 * here (and in that order) since the MAD layer uses them as
187	 * indices into a 2-entry table.
188	 */
189	MLX4_IB_QPT_SMI = IB_QPT_SMI,
190	MLX4_IB_QPT_GSI = IB_QPT_GSI,
191
192	MLX4_IB_QPT_RC = IB_QPT_RC,
193	MLX4_IB_QPT_UC = IB_QPT_UC,
194	MLX4_IB_QPT_UD = IB_QPT_UD,
195	MLX4_IB_QPT_RAW_IPV6 = IB_QPT_RAW_IPV6,
196	MLX4_IB_QPT_RAW_ETHERTYPE = IB_QPT_RAW_ETHERTYPE,
197	MLX4_IB_QPT_RAW_PACKET = IB_QPT_RAW_PACKET,
198	MLX4_IB_QPT_XRC_INI = IB_QPT_XRC_INI,
199	MLX4_IB_QPT_XRC_TGT = IB_QPT_XRC_TGT,
200
201	MLX4_IB_QPT_PROXY_SMI_OWNER	= 1 << 16,
202	MLX4_IB_QPT_PROXY_SMI		= 1 << 17,
203	MLX4_IB_QPT_PROXY_GSI		= 1 << 18,
204	MLX4_IB_QPT_TUN_SMI_OWNER	= 1 << 19,
205	MLX4_IB_QPT_TUN_SMI		= 1 << 20,
206	MLX4_IB_QPT_TUN_GSI		= 1 << 21,
207};
208
209#define MLX4_IB_QPT_ANY_SRIOV	(MLX4_IB_QPT_PROXY_SMI_OWNER | \
210	MLX4_IB_QPT_PROXY_SMI | MLX4_IB_QPT_PROXY_GSI | MLX4_IB_QPT_TUN_SMI_OWNER | \
211	MLX4_IB_QPT_TUN_SMI | MLX4_IB_QPT_TUN_GSI)
212
213enum mlx4_ib_mad_ifc_flags {
214	MLX4_MAD_IFC_IGNORE_MKEY	= 1,
215	MLX4_MAD_IFC_IGNORE_BKEY	= 2,
216	MLX4_MAD_IFC_IGNORE_KEYS	= (MLX4_MAD_IFC_IGNORE_MKEY |
217					   MLX4_MAD_IFC_IGNORE_BKEY),
218	MLX4_MAD_IFC_NET_VIEW		= 4,
219};
220
221enum {
222	MLX4_NUM_TUNNEL_BUFS		= 256,
223};
224
225struct mlx4_ib_tunnel_header {
226	struct mlx4_av av;
227	__be32 remote_qpn;
228	__be32 qkey;
229	__be16 vlan;
230	u8 mac[6];
231	__be16 pkey_index;
232	u8 reserved[6];
233};
234
235struct mlx4_ib_buf {
236	void *addr;
237	dma_addr_t map;
238};
239
240struct mlx4_rcv_tunnel_hdr {
241	__be32 flags_src_qp; /* flags[6:5] is defined for VLANs:
242			      * 0x0 - no vlan was in the packet
243			      * 0x01 - C-VLAN was in the packet */
244	u8 g_ml_path; /* gid bit stands for ipv6/4 header in RoCE */
245	u8 reserved;
246	__be16 pkey_index;
247	__be16 sl_vid;
248	__be16 slid_mac_47_32;
249	__be32 mac_31_0;
250};
251
252struct mlx4_ib_proxy_sqp_hdr {
253	struct ib_grh grh;
254	struct mlx4_rcv_tunnel_hdr tun;
255}  __packed;
256
257struct mlx4_roce_smac_vlan_info {
258	u64 smac;
259	int smac_index;
260	int smac_port;
261	u64 candidate_smac;
262	int candidate_smac_index;
263	int candidate_smac_port;
264	u16 vid;
265	int vlan_index;
266	int vlan_port;
267	u16 candidate_vid;
268	int candidate_vlan_index;
269	int candidate_vlan_port;
270	int update_vid;
271};
272
273struct mlx4_ib_qpg_data {
274	unsigned long *tss_bitmap;
275	unsigned long *rss_bitmap;
276	struct mlx4_ib_qp *qpg_parent;
277	int tss_qpn_base;
278	int rss_qpn_base;
279	u32 tss_child_count;
280	u32 rss_child_count;
281	u32 qpg_tss_mask_sz;
282};
283
284struct mlx4_ib_qp {
285	struct ib_qp		ibqp;
286	struct mlx4_qp		mqp;
287	struct mlx4_buf		buf;
288
289	struct mlx4_db		db;
290	struct mlx4_ib_wq	rq;
291
292	u32			doorbell_qpn;
293	__be32			sq_signal_bits;
294	unsigned		sq_next_wqe;
295	int			sq_max_wqes_per_wr;
296	int			sq_spare_wqes;
297	struct mlx4_ib_wq	sq;
298
299	enum mlx4_ib_qp_type	mlx4_ib_qp_type;
300	struct ib_umem	       *umem;
301	struct mlx4_mtt		mtt;
302	int			buf_size;
303	struct mutex		mutex;
304	u16			xrcdn;
305	u32			flags;
306	u8			port;
307	u8			alt_port;
308	u8			atomic_rd_en;
309	u8			resp_depth;
310	u8			sq_no_prefetch;
311	u8			state;
312	int			mlx_type;
313	enum ib_qpg_type	qpg_type;
314	struct mlx4_ib_qpg_data *qpg_data;
315	struct list_head	gid_list;
316	struct list_head	steering_rules;
317	struct mlx4_ib_buf	*sqp_proxy_rcv;
318	struct mlx4_roce_smac_vlan_info pri;
319	struct mlx4_roce_smac_vlan_info alt;
320	struct list_head	rules_list;
321	int                     max_inline_data;
322	struct mlx4_bf          bf;
323};
324
325struct mlx4_ib_srq {
326	struct ib_srq		ibsrq;
327	struct mlx4_srq		msrq;
328	struct mlx4_buf		buf;
329	struct mlx4_db		db;
330	u64		       *wrid;
331	spinlock_t		lock;
332	int			head;
333	int			tail;
334	u16			wqe_ctr;
335	struct ib_umem	       *umem;
336	struct mlx4_mtt		mtt;
337	struct mutex		mutex;
338};
339
340struct mlx4_ib_ah {
341	struct ib_ah		ibah;
342	union mlx4_ext_av       av;
343};
344
345/****************************************/
346/* alias guid support */
347/****************************************/
348#define NUM_PORT_ALIAS_GUID		2
349#define NUM_ALIAS_GUID_IN_REC		8
350#define NUM_ALIAS_GUID_REC_IN_PORT	16
351#define GUID_REC_SIZE			8
352#define NUM_ALIAS_GUID_PER_PORT		128
353#define MLX4_NOT_SET_GUID		(0x00LL)
354#define MLX4_GUID_FOR_DELETE_VAL	(~(0x00LL))
355
356enum mlx4_guid_alias_rec_status {
357	MLX4_GUID_INFO_STATUS_IDLE,
358	MLX4_GUID_INFO_STATUS_SET,
359	MLX4_GUID_INFO_STATUS_PENDING,
360};
361
362enum mlx4_guid_alias_rec_ownership {
363	MLX4_GUID_DRIVER_ASSIGN,
364	MLX4_GUID_SYSADMIN_ASSIGN,
365	MLX4_GUID_NONE_ASSIGN, /*init state of each record*/
366};
367
368enum mlx4_guid_alias_rec_method {
369	MLX4_GUID_INFO_RECORD_SET	= IB_MGMT_METHOD_SET,
370	MLX4_GUID_INFO_RECORD_DELETE	= IB_SA_METHOD_DELETE,
371};
372
373struct mlx4_sriov_alias_guid_info_rec_det {
374	u8 all_recs[GUID_REC_SIZE * NUM_ALIAS_GUID_IN_REC];
375	ib_sa_comp_mask guid_indexes; /*indicates what from the 8 records are valid*/
376	enum mlx4_guid_alias_rec_status status; /*indicates the administraively status of the record.*/
377	u8 method; /*set or delete*/
378	enum mlx4_guid_alias_rec_ownership ownership; /*indicates who assign that alias_guid record*/
379};
380
381struct mlx4_sriov_alias_guid_port_rec_det {
382	struct mlx4_sriov_alias_guid_info_rec_det all_rec_per_port[NUM_ALIAS_GUID_REC_IN_PORT];
383	struct workqueue_struct *wq;
384	struct delayed_work alias_guid_work;
385	u8 port;
386	struct mlx4_sriov_alias_guid *parent;
387	struct list_head cb_list;
388};
389
390struct mlx4_sriov_alias_guid {
391	struct mlx4_sriov_alias_guid_port_rec_det ports_guid[MLX4_MAX_PORTS];
392	spinlock_t ag_work_lock;
393	struct ib_sa_client *sa_client;
394};
395
396struct mlx4_ib_demux_work {
397	struct work_struct	work;
398	struct mlx4_ib_dev     *dev;
399	int			slave;
400	int			do_init;
401	u8			port;
402
403};
404
405struct mlx4_ib_tun_tx_buf {
406	struct mlx4_ib_buf buf;
407	struct ib_ah *ah;
408};
409
410struct mlx4_ib_demux_pv_qp {
411	struct ib_qp *qp;
412	enum ib_qp_type proxy_qpt;
413	struct mlx4_ib_buf *ring;
414	struct mlx4_ib_tun_tx_buf *tx_ring;
415	spinlock_t tx_lock;
416	unsigned tx_ix_head;
417	unsigned tx_ix_tail;
418};
419
420enum mlx4_ib_demux_pv_state {
421	DEMUX_PV_STATE_DOWN,
422	DEMUX_PV_STATE_STARTING,
423	DEMUX_PV_STATE_ACTIVE,
424	DEMUX_PV_STATE_DOWNING,
425};
426
427struct mlx4_ib_demux_pv_ctx {
428	int port;
429	int slave;
430	enum mlx4_ib_demux_pv_state state;
431	int has_smi;
432	struct ib_device *ib_dev;
433	struct ib_cq *cq;
434	struct ib_pd *pd;
435	struct ib_mr *mr;
436	struct work_struct work;
437	struct workqueue_struct *wq;
438	struct mlx4_ib_demux_pv_qp qp[2];
439};
440
441struct mlx4_ib_demux_ctx {
442	struct ib_device *ib_dev;
443	int port;
444	struct workqueue_struct *wq;
445	struct workqueue_struct *ud_wq;
446	spinlock_t ud_lock;
447	__be64 subnet_prefix;
448	__be64 guid_cache[128];
449	struct mlx4_ib_dev *dev;
450	/* the following lock protects both mcg_table and mcg_mgid0_list */
451	struct mutex		mcg_table_lock;
452	struct rb_root		mcg_table;
453	struct list_head	mcg_mgid0_list;
454	struct workqueue_struct	*mcg_wq;
455	struct mlx4_ib_demux_pv_ctx **tun;
456	atomic_t tid;
457	int    flushing; /* flushing the work queue */
458};
459
460struct mlx4_ib_sriov {
461	struct mlx4_ib_demux_ctx demux[MLX4_MAX_PORTS];
462	struct mlx4_ib_demux_pv_ctx *sqps[MLX4_MAX_PORTS];
463	/* when using this spinlock you should use "irq" because
464	 * it may be called from interrupt context.*/
465	spinlock_t going_down_lock;
466	int is_going_down;
467
468	struct mlx4_sriov_alias_guid alias_guid;
469
470	/* CM paravirtualization fields */
471	struct list_head cm_list;
472	spinlock_t id_map_lock;
473	struct rb_root sl_id_map;
474	struct idr pv_id_table;
475};
476
477struct mlx4_ib_iboe {
478	spinlock_t		lock;
479	struct net_device      *netdevs[MLX4_MAX_PORTS];
480	struct notifier_block 	nb;
481	union ib_gid		gid_table[MLX4_MAX_PORTS][128];
482};
483
484struct pkey_mgt {
485	u8			virt2phys_pkey[MLX4_MFUNC_MAX][MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS];
486	u16			phys_pkey_cache[MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS];
487	struct list_head	pkey_port_list[MLX4_MFUNC_MAX];
488	struct kobject	       *device_parent[MLX4_MFUNC_MAX];
489};
490
491struct mlx4_ib_iov_sysfs_attr {
492	void *ctx;
493	struct kobject *kobj;
494	unsigned long data;
495	u32 entry_num;
496	char name[15];
497	struct device_attribute dentry;
498	struct device *dev;
499};
500
501struct mlx4_ib_iov_sysfs_attr_ar {
502	struct mlx4_ib_iov_sysfs_attr dentries[3 * NUM_ALIAS_GUID_PER_PORT + 1];
503};
504
505struct mlx4_ib_iov_port {
506	char name[100];
507	u8 num;
508	struct mlx4_ib_dev *dev;
509	struct list_head list;
510	struct mlx4_ib_iov_sysfs_attr_ar *dentr_ar;
511	struct ib_port_attr attr;
512	struct kobject	*cur_port;
513	struct kobject	*admin_alias_parent;
514	struct kobject	*gids_parent;
515	struct kobject	*pkeys_parent;
516	struct kobject	*mcgs_parent;
517	struct mlx4_ib_iov_sysfs_attr mcg_dentry;
518};
519
520struct mlx4_ib_dev {
521	struct ib_device	ib_dev;
522	struct mlx4_dev	       *dev;
523	int			num_ports;
524	struct mlx4_uar		priv_uar;
525	u32			priv_pdn;
526	MLX4_DECLARE_DOORBELL_LOCK(uar_lock);
527
528	struct ib_mad_agent    *send_agent[MLX4_MAX_PORTS][2];
529	struct ib_ah	       *sm_ah[MLX4_MAX_PORTS];
530	spinlock_t		sm_lock;
531	struct mlx4_ib_sriov	sriov;
532
533	struct mutex		cap_mask_mutex;
534	bool			ib_active;
535	struct mlx4_ib_iboe	iboe;
536	int			counters[MLX4_MAX_PORTS];
537	int		       *eq_table;
538	int			eq_added;
539	struct kobject	       *iov_parent;
540	struct kobject	       *ports_parent;
541	struct kobject	       *dev_ports_parent[MLX4_MFUNC_MAX];
542	struct mlx4_ib_iov_port	iov_ports[MLX4_MAX_PORTS];
543	struct pkey_mgt		pkeys;
544	unsigned long *ib_uc_qpns_bitmap;
545	int steer_qpn_count;
546	int steer_qpn_base;
547};
548
549struct ib_event_work {
550	struct work_struct	work;
551	struct mlx4_ib_dev	*ib_dev;
552	struct mlx4_eqe		ib_eqe;
553};
554
555struct mlx4_ib_qp_tunnel_init_attr {
556	struct ib_qp_init_attr init_attr;
557	int slave;
558	enum ib_qp_type proxy_qp_type;
559	u8 port;
560};
561
562static inline struct mlx4_ib_dev *to_mdev(struct ib_device *ibdev)
563{
564	return container_of(ibdev, struct mlx4_ib_dev, ib_dev);
565}
566
567static inline struct mlx4_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext)
568{
569	return container_of(ibucontext, struct mlx4_ib_ucontext, ibucontext);
570}
571
572static inline struct mlx4_ib_pd *to_mpd(struct ib_pd *ibpd)
573{
574	return container_of(ibpd, struct mlx4_ib_pd, ibpd);
575}
576
577static inline struct mlx4_ib_xrcd *to_mxrcd(struct ib_xrcd *ibxrcd)
578{
579	return container_of(ibxrcd, struct mlx4_ib_xrcd, ibxrcd);
580}
581
582static inline struct mlx4_ib_cq *to_mcq(struct ib_cq *ibcq)
583{
584	return container_of(ibcq, struct mlx4_ib_cq, ibcq);
585}
586
587static inline struct mlx4_ib_cq *to_mibcq(struct mlx4_cq *mcq)
588{
589	return container_of(mcq, struct mlx4_ib_cq, mcq);
590}
591
592static inline struct mlx4_ib_mr *to_mmr(struct ib_mr *ibmr)
593{
594	return container_of(ibmr, struct mlx4_ib_mr, ibmr);
595}
596
597static inline struct mlx4_ib_fast_reg_page_list *to_mfrpl(struct ib_fast_reg_page_list *ibfrpl)
598{
599	return container_of(ibfrpl, struct mlx4_ib_fast_reg_page_list, ibfrpl);
600}
601
602static inline struct mlx4_ib_fmr *to_mfmr(struct ib_fmr *ibfmr)
603{
604	return container_of(ibfmr, struct mlx4_ib_fmr, ibfmr);
605}
606static inline struct mlx4_ib_qp *to_mqp(struct ib_qp *ibqp)
607{
608	return container_of(ibqp, struct mlx4_ib_qp, ibqp);
609}
610
611static inline struct mlx4_ib_qp *to_mibqp(struct mlx4_qp *mqp)
612{
613	return container_of(mqp, struct mlx4_ib_qp, mqp);
614}
615
616static inline struct mlx4_ib_srq *to_msrq(struct ib_srq *ibsrq)
617{
618	return container_of(ibsrq, struct mlx4_ib_srq, ibsrq);
619}
620
621static inline struct mlx4_ib_srq *to_mibsrq(struct mlx4_srq *msrq)
622{
623	return container_of(msrq, struct mlx4_ib_srq, msrq);
624}
625
626static inline struct mlx4_ib_ah *to_mah(struct ib_ah *ibah)
627{
628	return container_of(ibah, struct mlx4_ib_ah, ibah);
629}
630
631int mlx4_ib_init_sriov(struct mlx4_ib_dev *dev);
632void mlx4_ib_close_sriov(struct mlx4_ib_dev *dev);
633
634int mlx4_ib_db_map_user(struct mlx4_ib_ucontext *context, unsigned long virt,
635			struct mlx4_db *db);
636void mlx4_ib_db_unmap_user(struct mlx4_ib_ucontext *context, struct mlx4_db *db);
637
638struct ib_mr *mlx4_ib_get_dma_mr(struct ib_pd *pd, int acc);
639int mlx4_ib_umem_write_mtt(struct mlx4_ib_dev *dev, struct mlx4_mtt *mtt,
640			   struct ib_umem *umem);
641int mlx4_ib_umem_calc_optimal_mtt_size(struct ib_umem *umem,
642						u64 start_va,
643						int *num_of_mtts);
644struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
645				  u64 virt_addr, int access_flags,
646				  struct ib_udata *udata, int mr_id);
647int mlx4_ib_dereg_mr(struct ib_mr *mr);
648struct ib_mr *mlx4_ib_alloc_fast_reg_mr(struct ib_pd *pd,
649					int max_page_list_len);
650struct ib_fast_reg_page_list *mlx4_ib_alloc_fast_reg_page_list(struct ib_device *ibdev,
651							       int page_list_len);
652void mlx4_ib_free_fast_reg_page_list(struct ib_fast_reg_page_list *page_list);
653
654int mlx4_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period);
655int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata);
656int mlx4_ib_ignore_overrun_cq(struct ib_cq *ibcq);
657struct ib_cq *mlx4_ib_create_cq(struct ib_device *ibdev, int entries, int vector,
658				struct ib_ucontext *context,
659				struct ib_udata *udata);
660int mlx4_ib_destroy_cq(struct ib_cq *cq);
661int mlx4_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
662int mlx4_ib_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
663void __mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
664void mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
665
666struct ib_ah *mlx4_ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr);
667int mlx4_ib_query_ah(struct ib_ah *ibah, struct ib_ah_attr *ah_attr);
668int mlx4_ib_destroy_ah(struct ib_ah *ah);
669
670struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd,
671				  struct ib_srq_init_attr *init_attr,
672				  struct ib_udata *udata);
673int mlx4_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
674		       enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
675int mlx4_ib_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
676int mlx4_ib_destroy_srq(struct ib_srq *srq);
677void mlx4_ib_free_srq_wqe(struct mlx4_ib_srq *srq, int wqe_index);
678int mlx4_ib_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
679			  struct ib_recv_wr **bad_wr);
680
681struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
682				struct ib_qp_init_attr *init_attr,
683				struct ib_udata *udata);
684int mlx4_ib_destroy_qp(struct ib_qp *qp);
685int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
686		      int attr_mask, struct ib_udata *udata);
687int mlx4_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask,
688		     struct ib_qp_init_attr *qp_init_attr);
689int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
690		      struct ib_send_wr **bad_wr);
691int mlx4_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
692		      struct ib_recv_wr **bad_wr);
693
694int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int mad_ifc_flags,
695		 int port, struct ib_wc *in_wc, struct ib_grh *in_grh,
696		 void *in_mad, void *response_mad);
697int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags,	u8 port_num,
698			struct ib_wc *in_wc, struct ib_grh *in_grh,
699			struct ib_mad *in_mad, struct ib_mad *out_mad);
700int mlx4_ib_mad_init(struct mlx4_ib_dev *dev);
701void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev);
702
703struct ib_fmr *mlx4_ib_fmr_alloc(struct ib_pd *pd, int mr_access_flags,
704				  struct ib_fmr_attr *fmr_attr);
705int mlx4_ib_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list, int npages,
706			 u64 iova);
707int mlx4_ib_unmap_fmr(struct list_head *fmr_list);
708int mlx4_ib_fmr_dealloc(struct ib_fmr *fmr);
709int __mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
710			 struct ib_port_attr *props, int netw_view);
711int __mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
712			 u16 *pkey, int netw_view);
713
714int __mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
715			union ib_gid *gid, int netw_view);
716
717int mlx4_ib_resolve_grh(struct mlx4_ib_dev *dev, const struct ib_ah_attr *ah_attr,
718			u8 *mac, int *is_mcast, u8 port);
719
720int mlx4_ib_query_if_stat(struct mlx4_ib_dev *dev, u32 counter_index,
721		       union mlx4_counter *counter, u8 clear);
722
723static inline int mlx4_ib_ah_grh_present(struct mlx4_ib_ah *ah)
724{
725	u8 port = be32_to_cpu(ah->av.ib.port_pd) >> 24 & 3;
726
727	if (rdma_port_get_link_layer(ah->ibah.device, port) == IB_LINK_LAYER_ETHERNET)
728		return 1;
729
730	return !!(ah->av.ib.g_slid & 0x80);
731}
732
733int mlx4_ib_mcg_port_init(struct mlx4_ib_demux_ctx *ctx);
734void mlx4_ib_mcg_port_cleanup(struct mlx4_ib_demux_ctx *ctx, int destroy_wq);
735void clean_vf_mcast(struct mlx4_ib_demux_ctx *ctx, int slave);
736int mlx4_ib_mcg_init(void);
737void mlx4_ib_mcg_destroy(void);
738
739int mlx4_ib_find_real_gid(struct ib_device *ibdev, u8 port, __be64 guid);
740
741int mlx4_ib_mcg_multiplex_handler(struct ib_device *ibdev, int port, int slave,
742				  struct ib_sa_mad *sa_mad);
743int mlx4_ib_mcg_demux_handler(struct ib_device *ibdev, int port, int slave,
744			      struct ib_sa_mad *mad);
745
746int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
747		   union ib_gid *gid);
748
749void mlx4_ib_dispatch_event(struct mlx4_ib_dev *dev, u8 port_num,
750			    enum ib_event_type type);
751
752void mlx4_ib_tunnels_update_work(struct work_struct *work);
753
754int mlx4_ib_send_to_slave(struct mlx4_ib_dev *dev, int slave, u8 port,
755			  enum ib_qp_type qpt, struct ib_wc *wc,
756			  struct ib_grh *grh, struct ib_mad *mad);
757int mlx4_ib_send_to_wire(struct mlx4_ib_dev *dev, int slave, u8 port,
758			 enum ib_qp_type dest_qpt, u16 pkey_index, u32 remote_qpn,
759			 u32 qkey, struct ib_ah_attr *attr, struct ib_mad *mad);
760__be64 mlx4_ib_get_new_demux_tid(struct mlx4_ib_demux_ctx *ctx);
761
762int mlx4_ib_demux_cm_handler(struct ib_device *ibdev, int port, int *slave,
763		struct ib_mad *mad, int is_eth);
764
765int mlx4_ib_multiplex_cm_handler(struct ib_device *ibdev, int port, int slave_id,
766		struct ib_mad *mad);
767
768void mlx4_ib_cm_paravirt_init(struct mlx4_ib_dev *dev);
769void mlx4_ib_cm_paravirt_clean(struct mlx4_ib_dev *dev, int slave_id);
770
771/* alias guid support */
772void mlx4_ib_init_alias_guid_work(struct mlx4_ib_dev *dev, int port);
773int mlx4_ib_init_alias_guid_service(struct mlx4_ib_dev *dev);
774void mlx4_ib_destroy_alias_guid_service(struct mlx4_ib_dev *dev);
775void mlx4_ib_invalidate_all_guid_record(struct mlx4_ib_dev *dev, int port);
776
777void mlx4_ib_notify_slaves_on_guid_change(struct mlx4_ib_dev *dev,
778					  int block_num,
779					  u8 port_num, u8 *p_data);
780
781void mlx4_ib_update_cache_on_guid_change(struct mlx4_ib_dev *dev,
782					 int block_num, u8 port_num,
783					 u8 *p_data);
784
785int add_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
786			    struct attribute *attr);
787void del_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
788			     struct attribute *attr);
789ib_sa_comp_mask mlx4_ib_get_aguid_comp_mask_from_ix(int index);
790
791int mlx4_ib_device_register_sysfs(struct mlx4_ib_dev *device) ;
792
793void mlx4_ib_device_unregister_sysfs(struct mlx4_ib_dev *device);
794
795__be64 mlx4_ib_gen_node_guid(void);
796
797int mlx4_ib_steer_qp_alloc(struct mlx4_ib_dev *dev, int count, int *qpn);
798void mlx4_ib_steer_qp_free(struct mlx4_ib_dev *dev, u32 qpn, int count);
799int mlx4_ib_steer_qp_reg(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
800			 int is_attach);
801
802#endif /* MLX4_IB_H */
803