[mirror_ubuntu-bionic-kernel.git] / drivers / infiniband / core / core_priv.h

/*
 * Copyright (c) 2004 Topspin Communications.  All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#ifndef _CORE_PRIV_H
#define _CORE_PRIV_H

#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/cgroup_rdma.h>

#include <rdma/ib_verbs.h>
#include <rdma/ib_mad.h>
#include "mad_priv.h"

struct pkey_index_qp_list {
	struct list_head    pkey_index_list;
	u16                 pkey_index;
	/* Lock to hold while iterating the qp_list. */
	spinlock_t          qp_list_lock;
	struct list_head    qp_list;
};

#if IS_ENABLED(CONFIG_INFINIBAND_ADDR_TRANS_CONFIGFS)
int cma_configfs_init(void);
void cma_configfs_exit(void);
#else
static inline int cma_configfs_init(void)
{
	return 0;
}

static inline void cma_configfs_exit(void)
{
}
#endif
struct cma_device;
void cma_ref_dev(struct cma_device *cma_dev);
void cma_deref_dev(struct cma_device *cma_dev);
typedef bool (*cma_device_filter)(struct ib_device *, void *);
struct cma_device *cma_enum_devices_by_ibdev(cma_device_filter	filter,
					     void		*cookie);
int cma_get_default_gid_type(struct cma_device *cma_dev,
			     unsigned int port);
int cma_set_default_gid_type(struct cma_device *cma_dev,
			     unsigned int port,
			     enum ib_gid_type default_gid_type);
int cma_get_default_roce_tos(struct cma_device *cma_dev, unsigned int port);
int cma_set_default_roce_tos(struct cma_device *a_dev, unsigned int port,
			     u8 default_roce_tos);
struct ib_device *cma_get_ib_dev(struct cma_device *cma_dev);

int  ib_device_register_sysfs(struct ib_device *device,
			      int (*port_callback)(struct ib_device *,
						   u8, struct kobject *));
void ib_device_unregister_sysfs(struct ib_device *device);

void ib_cache_setup(void);
void ib_cache_cleanup(void);

typedef void (*roce_netdev_callback)(struct ib_device *device, u8 port,
	      struct net_device *idev, void *cookie);

typedef int (*roce_netdev_filter)(struct ib_device *device, u8 port,
	     struct net_device *idev, void *cookie);

void ib_enum_roce_netdev(struct ib_device *ib_dev,
			 roce_netdev_filter filter,
			 void *filter_cookie,
			 roce_netdev_callback cb,
			 void *cookie);
void ib_enum_all_roce_netdevs(roce_netdev_filter filter,
			      void *filter_cookie,
			      roce_netdev_callback cb,
			      void *cookie);

enum ib_cache_gid_default_mode {
	IB_CACHE_GID_DEFAULT_MODE_SET,
	IB_CACHE_GID_DEFAULT_MODE_DELETE
};

int ib_cache_gid_parse_type_str(const char *buf);

const char *ib_cache_gid_type_str(enum ib_gid_type gid_type);

void ib_cache_gid_set_default_gid(struct ib_device *ib_dev, u8 port,
				  struct net_device *ndev,
				  unsigned long gid_type_mask,
				  enum ib_cache_gid_default_mode mode);

int ib_cache_gid_add(struct ib_device *ib_dev, u8 port,
		     union ib_gid *gid, struct ib_gid_attr *attr);

int ib_cache_gid_del(struct ib_device *ib_dev, u8 port,
		     union ib_gid *gid, struct ib_gid_attr *attr);

int ib_cache_gid_del_all_netdev_gids(struct ib_device *ib_dev, u8 port,
				     struct net_device *ndev);

int roce_gid_mgmt_init(void);
void roce_gid_mgmt_cleanup(void);

int roce_rescan_device(struct ib_device *ib_dev);
unsigned long roce_gid_type_mask_support(struct ib_device *ib_dev, u8 port);

int ib_cache_setup_one(struct ib_device *device);
void ib_cache_cleanup_one(struct ib_device *device);
void ib_cache_release_one(struct ib_device *device);

#ifdef CONFIG_CGROUP_RDMA
int ib_device_register_rdmacg(struct ib_device *device);
void ib_device_unregister_rdmacg(struct ib_device *device);

int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj,
			 struct ib_device *device,
			 enum rdmacg_resource_type resource_index);

void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj,
			struct ib_device *device,
			enum rdmacg_resource_type resource_index);
#else
static inline int ib_device_register_rdmacg(struct ib_device *device)
{ return 0; }

static inline void ib_device_unregister_rdmacg(struct ib_device *device)
{ }

static inline int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj,
				       struct ib_device *device,
				       enum rdmacg_resource_type resource_index)
{ return 0; }

static inline void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj,
				      struct ib_device *device,
				      enum rdmacg_resource_type resource_index)
{ }
#endif

static inline bool rdma_is_upper_dev_rcu(struct net_device *dev,
					 struct net_device *upper)
{
	return netdev_has_upper_dev_all_rcu(dev, upper);
}

int addr_init(void);
void addr_cleanup(void);

int ib_mad_init(void);
void ib_mad_cleanup(void);

int ib_sa_init(void);
void ib_sa_cleanup(void);

int rdma_nl_init(void);
void rdma_nl_exit(void);

/**
 * Check if there are any listeners to the netlink group
 * @group: the netlink group ID
 * Returns 0 on success or a negative for no listeners.
 */
int ibnl_chk_listeners(unsigned int group);

int ib_nl_handle_resolve_resp(struct sk_buff *skb,
			      struct netlink_callback *cb);
int ib_nl_handle_set_timeout(struct sk_buff *skb,
			     struct netlink_callback *cb);
int ib_nl_handle_ip_res_resp(struct sk_buff *skb,
			     struct netlink_callback *cb);

int ib_get_cached_subnet_prefix(struct ib_device *device,
				u8                port_num,
				u64              *sn_pfx);

#ifdef CONFIG_SECURITY_INFINIBAND
int ib_security_pkey_access(struct ib_device *dev,
			    u8 port_num,
			    u16 pkey_index,
			    void *sec);

void ib_security_destroy_port_pkey_list(struct ib_device *device);

void ib_security_cache_change(struct ib_device *device,
			      u8 port_num,
			      u64 subnet_prefix);

int ib_security_modify_qp(struct ib_qp *qp,
			  struct ib_qp_attr *qp_attr,
			  int qp_attr_mask,
			  struct ib_udata *udata);

int ib_create_qp_security(struct ib_qp *qp, struct ib_device *dev);
void ib_destroy_qp_security_begin(struct ib_qp_security *sec);
void ib_destroy_qp_security_abort(struct ib_qp_security *sec);
void ib_destroy_qp_security_end(struct ib_qp_security *sec);
int ib_open_shared_qp_security(struct ib_qp *qp, struct ib_device *dev);
void ib_close_shared_qp_security(struct ib_qp_security *sec);
int ib_mad_agent_security_setup(struct ib_mad_agent *agent,
				enum ib_qp_type qp_type);
void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent);
int ib_mad_enforce_security(struct ib_mad_agent_private *map, u16 pkey_index);
#else
static inline int ib_security_pkey_access(struct ib_device *dev,
					  u8 port_num,
					  u16 pkey_index,
					  void *sec)
{
	return 0;
}

static inline void ib_security_destroy_port_pkey_list(struct ib_device *device)
{
}

static inline void ib_security_cache_change(struct ib_device *device,
					    u8 port_num,
					    u64 subnet_prefix)
{
}

static inline int ib_security_modify_qp(struct ib_qp *qp,
					struct ib_qp_attr *qp_attr,
					int qp_attr_mask,
					struct ib_udata *udata)
{
	return qp->device->modify_qp(qp->real_qp,
				     qp_attr,
				     qp_attr_mask,
				     udata);
}

static inline int ib_create_qp_security(struct ib_qp *qp,
					struct ib_device *dev)
{
	return 0;
}

static inline void ib_destroy_qp_security_begin(struct ib_qp_security *sec)
{
}

static inline void ib_destroy_qp_security_abort(struct ib_qp_security *sec)
{
}

static inline void ib_destroy_qp_security_end(struct ib_qp_security *sec)
{
}

static inline int ib_open_shared_qp_security(struct ib_qp *qp,
					     struct ib_device *dev)
{
	return 0;
}

static inline void ib_close_shared_qp_security(struct ib_qp_security *sec)
{
}

static inline int ib_mad_agent_security_setup(struct ib_mad_agent *agent,
					      enum ib_qp_type qp_type)
{
	return 0;
}

static inline void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent)
{
}

static inline int ib_mad_enforce_security(struct ib_mad_agent_private *map,
					  u16 pkey_index)
{
	return 0;
}
#endif
#endif /* _CORE_PRIV_H */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Copyright (c) 2004 Topspin Communications. All rights reserved.
	3	*
	4	* This software is available to you under a choice of one of two
	5	* licenses. You may choose to be licensed under the terms of the GNU
	6	* General Public License (GPL) Version 2, available from the file
	7	* COPYING in the main directory of this source tree, or the
	8	* OpenIB.org BSD license below:
	9	*
	10	* Redistribution and use in source and binary forms, with or
	11	* without modification, are permitted provided that the following
	12	* conditions are met:
	13	*
	14	* - Redistributions of source code must retain the above
	15	* copyright notice, this list of conditions and the following
	16	* disclaimer.
	17	*
	18	* - Redistributions in binary form must reproduce the above
	19	* copyright notice, this list of conditions and the following
	20	* disclaimer in the documentation and/or other materials
	21	* provided with the distribution.
	22	*
	23	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	24	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	25	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	26	* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
	27	* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
	28	* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	29	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	30	* SOFTWARE.
1da177e4 LT	31	*/
	32
	33	#ifndef _CORE_PRIV_H
	34	#define _CORE_PRIV_H
	35
	36	#include <linux/list.h>
	37	#include <linux/spinlock.h>
43579b5f	38	#include <linux/cgroup_rdma.h>
1da177e4	39
a4d61e84	40	#include <rdma/ib_verbs.h>
47a2b338 DJ	41	#include <rdma/ib_mad.h>
47a2b338 DJ	42	#include "mad_priv.h"
1da177e4	43
d291f1a6 DJ	44	struct pkey_index_qp_list {
	45	struct list_head pkey_index_list;
	46	u16 pkey_index;
	47	/* Lock to hold while iterating the qp_list. */
	48	spinlock_t qp_list_lock;
	49	struct list_head qp_list;
	50	};
1da177e4	51
045959db MB	52	#if IS_ENABLED(CONFIG_INFINIBAND_ADDR_TRANS_CONFIGFS)
	53	int cma_configfs_init(void);
	54	void cma_configfs_exit(void);
	55	#else
	56	static inline int cma_configfs_init(void)
	57	{
	58	return 0;
	59	}
	60
	61	static inline void cma_configfs_exit(void)
	62	{
	63	}
	64	#endif
218a773f MB	65	struct cma_device;
	66	void cma_ref_dev(struct cma_device *cma_dev);
	67	void cma_deref_dev(struct cma_device *cma_dev);
045959db MB	68	typedef bool (cma_device_filter)(struct ib_device , void *);
	69	struct cma_device *cma_enum_devices_by_ibdev(cma_device_filter filter,
	70	void *cookie);
	71	int cma_get_default_gid_type(struct cma_device *cma_dev,
	72	unsigned int port);
	73	int cma_set_default_gid_type(struct cma_device *cma_dev,
	74	unsigned int port,
	75	enum ib_gid_type default_gid_type);
89052d78 MD	76	int cma_get_default_roce_tos(struct cma_device *cma_dev, unsigned int port);
	77	int cma_set_default_roce_tos(struct cma_device *a_dev, unsigned int port,
	78	u8 default_roce_tos);
045959db	79	struct ib_device cma_get_ib_dev(struct cma_device cma_dev);
218a773f	80
9a6edb60 RC	81	int ib_device_register_sysfs(struct ib_device *device,
	82	int (port_callback)(struct ib_device ,
	83	u8, struct kobject *));
1da177e4 LT	84	void ib_device_unregister_sysfs(struct ib_device *device);
1da177e4 LT	85
03db3a2d	86	void ib_cache_setup(void);
1da177e4 LT	87	void ib_cache_cleanup(void);
1da177e4 LT	88
03db3a2d MB	89	typedef void (roce_netdev_callback)(struct ib_device device, u8 port,
	90	struct net_device idev, void cookie);
	91
	92	typedef int (roce_netdev_filter)(struct ib_device device, u8 port,
	93	struct net_device idev, void cookie);
	94
	95	void ib_enum_roce_netdev(struct ib_device *ib_dev,
	96	roce_netdev_filter filter,
	97	void *filter_cookie,
	98	roce_netdev_callback cb,
	99	void *cookie);
	100	void ib_enum_all_roce_netdevs(roce_netdev_filter filter,
	101	void *filter_cookie,
	102	roce_netdev_callback cb,
	103	void *cookie);
	104
03db3a2d MB	105	enum ib_cache_gid_default_mode {
	106	IB_CACHE_GID_DEFAULT_MODE_SET,
	107	IB_CACHE_GID_DEFAULT_MODE_DELETE
	108	};
	109
045959db MB	110	int ib_cache_gid_parse_type_str(const char *buf);
045959db MB	111
b39ffa1d MB	112	const char *ib_cache_gid_type_str(enum ib_gid_type gid_type);
b39ffa1d MB	113
03db3a2d MB	114	void ib_cache_gid_set_default_gid(struct ib_device *ib_dev, u8 port,
03db3a2d MB	115	struct net_device *ndev,
b39ffa1d	116	unsigned long gid_type_mask,
03db3a2d MB	117	enum ib_cache_gid_default_mode mode);
	118
	119	int ib_cache_gid_add(struct ib_device *ib_dev, u8 port,
	120	union ib_gid gid, struct ib_gid_attr attr);
	121
	122	int ib_cache_gid_del(struct ib_device *ib_dev, u8 port,
	123	union ib_gid gid, struct ib_gid_attr attr);
	124
	125	int ib_cache_gid_del_all_netdev_gids(struct ib_device *ib_dev, u8 port,
	126	struct net_device *ndev);
	127
	128	int roce_gid_mgmt_init(void);
	129	void roce_gid_mgmt_cleanup(void);
	130
	131	int roce_rescan_device(struct ib_device *ib_dev);
b39ffa1d	132	unsigned long roce_gid_type_mask_support(struct ib_device *ib_dev, u8 port);
03db3a2d MB	133
	134	int ib_cache_setup_one(struct ib_device *device);
	135	void ib_cache_cleanup_one(struct ib_device *device);
	136	void ib_cache_release_one(struct ib_device *device);
	137
43579b5f PP	138	#ifdef CONFIG_CGROUP_RDMA
	139	int ib_device_register_rdmacg(struct ib_device *device);
	140	void ib_device_unregister_rdmacg(struct ib_device *device);
	141
	142	int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj,
	143	struct ib_device *device,
	144	enum rdmacg_resource_type resource_index);
	145
	146	void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj,
	147	struct ib_device *device,
	148	enum rdmacg_resource_type resource_index);
	149	#else
	150	static inline int ib_device_register_rdmacg(struct ib_device *device)
	151	{ return 0; }
	152
	153	static inline void ib_device_unregister_rdmacg(struct ib_device *device)
	154	{ }
	155
	156	static inline int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj,
	157	struct ib_device *device,
	158	enum rdmacg_resource_type resource_index)
	159	{ return 0; }
	160
	161	static inline void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj,
	162	struct ib_device *device,
	163	enum rdmacg_resource_type resource_index)
	164	{ }
	165	#endif
	166
6020d7e5 MB	167	static inline bool rdma_is_upper_dev_rcu(struct net_device *dev,
	168	struct net_device *upper)
	169	{
453d3932	170	return netdev_has_upper_dev_all_rcu(dev, upper);
6020d7e5 MB	171	}
6020d7e5 MB	172
e3f20f02 LR	173	int addr_init(void);
	174	void addr_cleanup(void);
	175
4c2cb422 MB	176	int ib_mad_init(void);
	177	void ib_mad_cleanup(void);
	178
c2e49c92 MB	179	int ib_sa_init(void);
	180	void ib_sa_cleanup(void);
	181
c9901724 LR	182	int rdma_nl_init(void);
c9901724 LR	183	void rdma_nl_exit(void);
233c1955 LR	184
	185	/**
	186	* Check if there are any listeners to the netlink group
	187	* @group: the netlink group ID
	188	* Returns 0 on success or a negative for no listeners.
	189	*/
	190	int ibnl_chk_listeners(unsigned int group);
	191
735c631a MB	192	int ib_nl_handle_resolve_resp(struct sk_buff *skb,
	193	struct netlink_callback *cb);
	194	int ib_nl_handle_set_timeout(struct sk_buff *skb,
	195	struct netlink_callback *cb);
ae43f828 MB	196	int ib_nl_handle_ip_res_resp(struct sk_buff *skb,
ae43f828 MB	197	struct netlink_callback *cb);
735c631a	198
883c71fe DJ	199	int ib_get_cached_subnet_prefix(struct ib_device *device,
	200	u8 port_num,
	201	u64 *sn_pfx);
d291f1a6 DJ	202
d291f1a6 DJ	203	#ifdef CONFIG_SECURITY_INFINIBAND
47a2b338 DJ	204	int ib_security_pkey_access(struct ib_device *dev,
	205	u8 port_num,
	206	u16 pkey_index,
	207	void *sec);
	208
d291f1a6 DJ	209	void ib_security_destroy_port_pkey_list(struct ib_device *device);
	210
	211	void ib_security_cache_change(struct ib_device *device,
	212	u8 port_num,
	213	u64 subnet_prefix);
	214
	215	int ib_security_modify_qp(struct ib_qp *qp,
	216	struct ib_qp_attr *qp_attr,
	217	int qp_attr_mask,
	218	struct ib_udata *udata);
	219
	220	int ib_create_qp_security(struct ib_qp qp, struct ib_device dev);
	221	void ib_destroy_qp_security_begin(struct ib_qp_security *sec);
	222	void ib_destroy_qp_security_abort(struct ib_qp_security *sec);
	223	void ib_destroy_qp_security_end(struct ib_qp_security *sec);
	224	int ib_open_shared_qp_security(struct ib_qp qp, struct ib_device dev);
	225	void ib_close_shared_qp_security(struct ib_qp_security *sec);
47a2b338 DJ	226	int ib_mad_agent_security_setup(struct ib_mad_agent *agent,
	227	enum ib_qp_type qp_type);
	228	void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent);
	229	int ib_mad_enforce_security(struct ib_mad_agent_private *map, u16 pkey_index);
d291f1a6	230	#else
47a2b338 DJ	231	static inline int ib_security_pkey_access(struct ib_device *dev,
	232	u8 port_num,
	233	u16 pkey_index,
	234	void *sec)
	235	{
	236	return 0;
	237	}
	238
d291f1a6 DJ	239	static inline void ib_security_destroy_port_pkey_list(struct ib_device *device)
	240	{
	241	}
	242
	243	static inline void ib_security_cache_change(struct ib_device *device,
	244	u8 port_num,
	245	u64 subnet_prefix)
	246	{
	247	}
	248
	249	static inline int ib_security_modify_qp(struct ib_qp *qp,
	250	struct ib_qp_attr *qp_attr,
	251	int qp_attr_mask,
	252	struct ib_udata *udata)
	253	{
	254	return qp->device->modify_qp(qp->real_qp,
	255	qp_attr,
	256	qp_attr_mask,
	257	udata);
	258	}
	259
	260	static inline int ib_create_qp_security(struct ib_qp *qp,
	261	struct ib_device *dev)
	262	{
	263	return 0;
	264	}
	265
	266	static inline void ib_destroy_qp_security_begin(struct ib_qp_security *sec)
	267	{
	268	}
	269
	270	static inline void ib_destroy_qp_security_abort(struct ib_qp_security *sec)
	271	{
	272	}
	273
	274	static inline void ib_destroy_qp_security_end(struct ib_qp_security *sec)
	275	{
	276	}
	277
	278	static inline int ib_open_shared_qp_security(struct ib_qp *qp,
	279	struct ib_device *dev)
	280	{
	281	return 0;
	282	}
	283
	284	static inline void ib_close_shared_qp_security(struct ib_qp_security *sec)
	285	{
	286	}
47a2b338 DJ	287
	288	static inline int ib_mad_agent_security_setup(struct ib_mad_agent *agent,
	289	enum ib_qp_type qp_type)
	290	{
	291	return 0;
	292	}
	293
	294	static inline void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent)
	295	{
	296	}
	297
	298	static inline int ib_mad_enforce_security(struct ib_mad_agent_private *map,
	299	u16 pkey_index)
	300	{
	301	return 0;
	302	}
d291f1a6	303	#endif
1da177e4	304	#endif /* _CORE_PRIV_H */