drivers/infiniband/core/core_priv.h - linux - Git at Google

 /*
  * 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 ibnl_init(void);
 void ibnl_cleanup(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 */
	/*
	* 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 ibnl_init(void);
	void ibnl_cleanup(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 */