drivers/infiniband/ulp/ipoib/ipoib.h - kernel/msm - Gitiles

 /*
  * Copyright (c) 2004, 2005 Topspin Communications.  All rights reserved.
  * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
  * Copyright (c) 2004 Voltaire, Inc. 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.
  *
  * $Id: ipoib.h 1358 2004-12-17 22:00:11Z roland $
  */

 #ifndef _IPOIB_H
 #define _IPOIB_H

 #include <linux/list.h>
 #include <linux/skbuff.h>
 #include <linux/netdevice.h>
 #include <linux/workqueue.h>
 #include <linux/pci.h>
 #include <linux/config.h>
 #include <linux/kref.h>
 #include <linux/if_infiniband.h>
 #include <linux/mutex.h>

 #include <net/neighbour.h>

 #include <asm/atomic.h>

 #include <rdma/ib_verbs.h>
 #include <rdma/ib_pack.h>
 #include <rdma/ib_sa.h>

 /* constants */

 enum {
 	IPOIB_PACKET_SIZE         = 2048,
 	IPOIB_BUF_SIZE 		  = IPOIB_PACKET_SIZE + IB_GRH_BYTES,

 	IPOIB_ENCAP_LEN 	  = 4,

 	IPOIB_RX_RING_SIZE 	  = 128,
 	IPOIB_TX_RING_SIZE 	  = 64,

 	IPOIB_NUM_WC 		  = 4,

 	IPOIB_MAX_PATH_REC_QUEUE  = 3,
 	IPOIB_MAX_MCAST_QUEUE     = 3,

 	IPOIB_FLAG_OPER_UP 	  = 0,
 	IPOIB_FLAG_ADMIN_UP 	  = 1,
 	IPOIB_PKEY_ASSIGNED 	  = 2,
 	IPOIB_PKEY_STOP 	  = 3,
 	IPOIB_FLAG_SUBINTERFACE   = 4,
 	IPOIB_MCAST_RUN 	  = 5,
 	IPOIB_STOP_REAPER         = 6,

 	IPOIB_MAX_BACKOFF_SECONDS = 16,

 	IPOIB_MCAST_FLAG_FOUND 	  = 0,	/* used in set_multicast_list */
 	IPOIB_MCAST_FLAG_SENDONLY = 1,
 	IPOIB_MCAST_FLAG_BUSY 	  = 2,	/* joining or already joined */
 	IPOIB_MCAST_FLAG_ATTACHED = 3,
 };

 /* structs */

 struct ipoib_header {
 	__be16	proto;
 	u16	reserved;
 };

 struct ipoib_pseudoheader {
 	u8  hwaddr[INFINIBAND_ALEN];
 };

 struct ipoib_mcast;

 struct ipoib_rx_buf {
 	struct sk_buff *skb;
 	dma_addr_t	mapping;
 };

 struct ipoib_tx_buf {
 	struct sk_buff *skb;
 	DECLARE_PCI_UNMAP_ADDR(mapping)
 };

 /*
  * Device private locking: tx_lock protects members used in TX fast
  * path (and we use LLTX so upper layers don't do extra locking).
  * lock protects everything else.  lock nests inside of tx_lock (ie
  * tx_lock must be acquired first if needed).
  */
 struct ipoib_dev_priv {
 	spinlock_t lock;

 	struct net_device *dev;

 	unsigned long flags;

 	struct mutex mcast_mutex;
 	struct mutex vlan_mutex;

 	struct rb_root  path_tree;
 	struct list_head path_list;

 	struct ipoib_mcast *broadcast;
 	struct list_head multicast_list;
 	struct rb_root multicast_tree;

 	struct work_struct pkey_task;
 	struct work_struct mcast_task;
 	struct work_struct flush_task;
 	struct work_struct restart_task;
 	struct work_struct ah_reap_task;

 	struct ib_device *ca;
 	u8            	  port;
 	u16           	  pkey;
 	struct ib_pd  	 *pd;
 	struct ib_mr  	 *mr;
 	struct ib_cq  	 *cq;
 	struct ib_qp  	 *qp;
 	u32           	  qkey;

 	union ib_gid local_gid;
 	u16          local_lid;
 	u8           local_rate;

 	unsigned int admin_mtu;
 	unsigned int mcast_mtu;

 	struct ipoib_rx_buf *rx_ring;

 	spinlock_t           tx_lock;
 	struct ipoib_tx_buf *tx_ring;
 	unsigned             tx_head;
 	unsigned             tx_tail;
 	struct ib_sge        tx_sge;
 	struct ib_send_wr    tx_wr;

 	struct ib_wc ibwc[IPOIB_NUM_WC];

 	struct list_head dead_ahs;

 	struct ib_event_handler event_handler;

 	struct net_device_stats stats;

 	struct net_device *parent;
 	struct list_head child_intfs;
 	struct list_head list;

 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
 	struct list_head fs_list;
 	struct dentry *mcg_dentry;
 	struct dentry *path_dentry;
 #endif
 };

 struct ipoib_ah {
 	struct net_device *dev;
 	struct ib_ah      *ah;
 	struct list_head   list;
 	struct kref        ref;
 	unsigned           last_send;
 };

 struct ipoib_path {
 	struct net_device    *dev;
 	struct ib_sa_path_rec pathrec;
 	struct ipoib_ah      *ah;
 	struct sk_buff_head   queue;

 	struct list_head      neigh_list;

 	int                   query_id;
 	struct ib_sa_query   *query;
 	struct completion     done;

 	struct rb_node        rb_node;
 	struct list_head      list;
 };

 struct ipoib_neigh {
 	struct ipoib_ah    *ah;
 	struct sk_buff_head queue;

 	struct neighbour   *neighbour;

 	struct list_head    list;
 };

 static inline struct ipoib_neigh **to_ipoib_neigh(struct neighbour *neigh)
 {
 	return (struct ipoib_neigh **) (neigh->ha + 24 -
 					(offsetof(struct neighbour, ha) & 4));
 }

 extern struct workqueue_struct *ipoib_workqueue;

 /* functions */

 void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr);

 struct ipoib_ah *ipoib_create_ah(struct net_device *dev,
 				 struct ib_pd *pd, struct ib_ah_attr *attr);
 void ipoib_free_ah(struct kref *kref);
 static inline void ipoib_put_ah(struct ipoib_ah *ah)
 {
 	kref_put(&ah->ref, ipoib_free_ah);
 }

 int ipoib_open(struct net_device *dev);
 int ipoib_add_pkey_attr(struct net_device *dev);

 void ipoib_send(struct net_device *dev, struct sk_buff *skb,
 		struct ipoib_ah *address, u32 qpn);
 void ipoib_reap_ah(void *dev_ptr);

 void ipoib_flush_paths(struct net_device *dev);
 struct ipoib_dev_priv *ipoib_intf_alloc(const char *format);

 int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
 void ipoib_ib_dev_flush(void *dev);
 void ipoib_ib_dev_cleanup(struct net_device *dev);

 int ipoib_ib_dev_open(struct net_device *dev);
 int ipoib_ib_dev_up(struct net_device *dev);
 int ipoib_ib_dev_down(struct net_device *dev);
 int ipoib_ib_dev_stop(struct net_device *dev);

 int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
 void ipoib_dev_cleanup(struct net_device *dev);

 void ipoib_mcast_join_task(void *dev_ptr);
 void ipoib_mcast_send(struct net_device *dev, union ib_gid *mgid,
 		      struct sk_buff *skb);

 void ipoib_mcast_restart_task(void *dev_ptr);
 int ipoib_mcast_start_thread(struct net_device *dev);
 int ipoib_mcast_stop_thread(struct net_device *dev, int flush);

 void ipoib_mcast_dev_down(struct net_device *dev);
 void ipoib_mcast_dev_flush(struct net_device *dev);

 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
 struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev);
 int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter);
 void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,
 				  union ib_gid *gid,
 				  unsigned long *created,
 				  unsigned int *queuelen,
 				  unsigned int *complete,
 				  unsigned int *send_only);

 struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev);
 int ipoib_path_iter_next(struct ipoib_path_iter *iter);
 void ipoib_path_iter_read(struct ipoib_path_iter *iter,
 			  struct ipoib_path *path);
 #endif

 int ipoib_mcast_attach(struct net_device *dev, u16 mlid,
 		       union ib_gid *mgid);
 int ipoib_mcast_detach(struct net_device *dev, u16 mlid,
 		       union ib_gid *mgid);

 int ipoib_init_qp(struct net_device *dev);
 int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca);
 void ipoib_transport_dev_cleanup(struct net_device *dev);

 void ipoib_event(struct ib_event_handler *handler,
 		 struct ib_event *record);

 int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey);
 int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey);

 void ipoib_pkey_poll(void *dev);
 int ipoib_pkey_dev_delay_open(struct net_device *dev);

 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
 void ipoib_create_debug_files(struct net_device *dev);
 void ipoib_delete_debug_files(struct net_device *dev);
 int ipoib_register_debugfs(void);
 void ipoib_unregister_debugfs(void);
 #else
 static inline void ipoib_create_debug_files(struct net_device *dev) { }
 static inline void ipoib_delete_debug_files(struct net_device *dev) { }
 static inline int ipoib_register_debugfs(void) { return 0; }
 static inline void ipoib_unregister_debugfs(void) { }
 #endif


 #define ipoib_printk(level, priv, format, arg...)	\
 	printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg)
 #define ipoib_warn(priv, format, arg...)		\
 	ipoib_printk(KERN_WARNING, priv, format , ## arg)


 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
 extern int ipoib_debug_level;

 #define ipoib_dbg(priv, format, arg...)			\
 	do {					        \
 		if (ipoib_debug_level > 0)			\
 			ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
 	} while (0)
 #define ipoib_dbg_mcast(priv, format, arg...)		\
 	do {					        \
 		if (mcast_debug_level > 0)		\
 			ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
 	} while (0)
 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG */
 #define ipoib_dbg(priv, format, arg...)			\
 	do { (void) (priv); } while (0)
 #define ipoib_dbg_mcast(priv, format, arg...)		\
 	do { (void) (priv); } while (0)
 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */

 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
 #define ipoib_dbg_data(priv, format, arg...)		\
 	do {					        \
 		if (data_debug_level > 0)		\
 			ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
 	} while (0)
 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
 #define ipoib_dbg_data(priv, format, arg...)		\
 	do { (void) (priv); } while (0)
 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */


 #define IPOIB_GID_FMT		"%x:%x:%x:%x:%x:%x:%x:%x"

 #define IPOIB_GID_ARG(gid)	be16_to_cpup((__be16 *) ((gid).raw +  0)), \
 				be16_to_cpup((__be16 *) ((gid).raw +  2)), \
 				be16_to_cpup((__be16 *) ((gid).raw +  4)), \
 				be16_to_cpup((__be16 *) ((gid).raw +  6)), \
 				be16_to_cpup((__be16 *) ((gid).raw +  8)), \
 				be16_to_cpup((__be16 *) ((gid).raw + 10)), \
 				be16_to_cpup((__be16 *) ((gid).raw + 12)), \
 				be16_to_cpup((__be16 *) ((gid).raw + 14))

 #endif /* _IPOIB_H */
	/*
	* Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
	* Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
	* Copyright (c) 2004 Voltaire, Inc. 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.
	*
	* $Id: ipoib.h 1358 2004-12-17 22:00:11Z roland $
	*/

	#ifndef _IPOIB_H
	#define _IPOIB_H

	#include <linux/list.h>
	#include <linux/skbuff.h>
	#include <linux/netdevice.h>
	#include <linux/workqueue.h>
	#include <linux/pci.h>
	#include <linux/config.h>
	#include <linux/kref.h>
	#include <linux/if_infiniband.h>
	#include <linux/mutex.h>

	#include <net/neighbour.h>

	#include <asm/atomic.h>

	#include <rdma/ib_verbs.h>
	#include <rdma/ib_pack.h>
	#include <rdma/ib_sa.h>

	/* constants */

	enum {
	IPOIB_PACKET_SIZE = 2048,
	IPOIB_BUF_SIZE = IPOIB_PACKET_SIZE + IB_GRH_BYTES,

	IPOIB_ENCAP_LEN = 4,

	IPOIB_RX_RING_SIZE = 128,
	IPOIB_TX_RING_SIZE = 64,

	IPOIB_NUM_WC = 4,

	IPOIB_MAX_PATH_REC_QUEUE = 3,
	IPOIB_MAX_MCAST_QUEUE = 3,

	IPOIB_FLAG_OPER_UP = 0,
	IPOIB_FLAG_ADMIN_UP = 1,
	IPOIB_PKEY_ASSIGNED = 2,
	IPOIB_PKEY_STOP = 3,
	IPOIB_FLAG_SUBINTERFACE = 4,
	IPOIB_MCAST_RUN = 5,
	IPOIB_STOP_REAPER = 6,

	IPOIB_MAX_BACKOFF_SECONDS = 16,

	IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */
	IPOIB_MCAST_FLAG_SENDONLY = 1,
	IPOIB_MCAST_FLAG_BUSY = 2, /* joining or already joined */
	IPOIB_MCAST_FLAG_ATTACHED = 3,
	};

	/* structs */

	struct ipoib_header {
	__be16 proto;
	u16 reserved;
	};

	struct ipoib_pseudoheader {
	u8 hwaddr[INFINIBAND_ALEN];
	};

	struct ipoib_mcast;

	struct ipoib_rx_buf {
	struct sk_buff *skb;
	dma_addr_t mapping;
	};

	struct ipoib_tx_buf {
	struct sk_buff *skb;
	DECLARE_PCI_UNMAP_ADDR(mapping)
	};

	/*
	* Device private locking: tx_lock protects members used in TX fast
	* path (and we use LLTX so upper layers don't do extra locking).
	* lock protects everything else. lock nests inside of tx_lock (ie
	* tx_lock must be acquired first if needed).
	*/
	struct ipoib_dev_priv {
	spinlock_t lock;

	struct net_device *dev;

	unsigned long flags;

	struct mutex mcast_mutex;
	struct mutex vlan_mutex;

	struct rb_root path_tree;
	struct list_head path_list;

	struct ipoib_mcast *broadcast;
	struct list_head multicast_list;
	struct rb_root multicast_tree;

	struct work_struct pkey_task;
	struct work_struct mcast_task;
	struct work_struct flush_task;
	struct work_struct restart_task;
	struct work_struct ah_reap_task;

	struct ib_device *ca;
	u8 port;
	u16 pkey;
	struct ib_pd *pd;
	struct ib_mr *mr;
	struct ib_cq *cq;
	struct ib_qp *qp;
	u32 qkey;

	union ib_gid local_gid;
	u16 local_lid;
	u8 local_rate;

	unsigned int admin_mtu;
	unsigned int mcast_mtu;

	struct ipoib_rx_buf *rx_ring;

	spinlock_t tx_lock;
	struct ipoib_tx_buf *tx_ring;
	unsigned tx_head;
	unsigned tx_tail;
	struct ib_sge tx_sge;
	struct ib_send_wr tx_wr;

	struct ib_wc ibwc[IPOIB_NUM_WC];

	struct list_head dead_ahs;

	struct ib_event_handler event_handler;

	struct net_device_stats stats;

	struct net_device *parent;
	struct list_head child_intfs;
	struct list_head list;

	#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
	struct list_head fs_list;
	struct dentry *mcg_dentry;
	struct dentry *path_dentry;
	#endif
	};

	struct ipoib_ah {
	struct net_device *dev;
	struct ib_ah *ah;
	struct list_head list;
	struct kref ref;
	unsigned last_send;
	};

	struct ipoib_path {
	struct net_device *dev;
	struct ib_sa_path_rec pathrec;
	struct ipoib_ah *ah;
	struct sk_buff_head queue;

	struct list_head neigh_list;

	int query_id;
	struct ib_sa_query *query;
	struct completion done;

	struct rb_node rb_node;
	struct list_head list;
	};

	struct ipoib_neigh {
	struct ipoib_ah *ah;
	struct sk_buff_head queue;

	struct neighbour *neighbour;

	struct list_head list;
	};

	static inline struct ipoib_neigh *to_ipoib_neigh(struct neighbour neigh)
	{
	return (struct ipoib_neigh **) (neigh->ha + 24 -
	(offsetof(struct neighbour, ha) & 4));
	}

	extern struct workqueue_struct *ipoib_workqueue;

	/* functions */

	void ipoib_ib_completion(struct ib_cq cq, void dev_ptr);

	struct ipoib_ah ipoib_create_ah(struct net_device dev,
	struct ib_pd pd, struct ib_ah_attr attr);
	void ipoib_free_ah(struct kref *kref);
	static inline void ipoib_put_ah(struct ipoib_ah *ah)
	{
	kref_put(&ah->ref, ipoib_free_ah);
	}

	int ipoib_open(struct net_device *dev);
	int ipoib_add_pkey_attr(struct net_device *dev);

	void ipoib_send(struct net_device dev, struct sk_buff skb,
	struct ipoib_ah *address, u32 qpn);
	void ipoib_reap_ah(void *dev_ptr);

	void ipoib_flush_paths(struct net_device *dev);
	struct ipoib_dev_priv ipoib_intf_alloc(const char format);

	int ipoib_ib_dev_init(struct net_device dev, struct ib_device ca, int port);
	void ipoib_ib_dev_flush(void *dev);
	void ipoib_ib_dev_cleanup(struct net_device *dev);

	int ipoib_ib_dev_open(struct net_device *dev);
	int ipoib_ib_dev_up(struct net_device *dev);
	int ipoib_ib_dev_down(struct net_device *dev);
	int ipoib_ib_dev_stop(struct net_device *dev);

	int ipoib_dev_init(struct net_device dev, struct ib_device ca, int port);
	void ipoib_dev_cleanup(struct net_device *dev);

	void ipoib_mcast_join_task(void *dev_ptr);
	void ipoib_mcast_send(struct net_device dev, union ib_gid mgid,
	struct sk_buff *skb);

	void ipoib_mcast_restart_task(void *dev_ptr);
	int ipoib_mcast_start_thread(struct net_device *dev);
	int ipoib_mcast_stop_thread(struct net_device *dev, int flush);

	void ipoib_mcast_dev_down(struct net_device *dev);
	void ipoib_mcast_dev_flush(struct net_device *dev);

	#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
	struct ipoib_mcast_iter ipoib_mcast_iter_init(struct net_device dev);
	int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter);
	void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,
	union ib_gid *gid,
	unsigned long *created,
	unsigned int *queuelen,
	unsigned int *complete,
	unsigned int *send_only);

	struct ipoib_path_iter ipoib_path_iter_init(struct net_device dev);
	int ipoib_path_iter_next(struct ipoib_path_iter *iter);
	void ipoib_path_iter_read(struct ipoib_path_iter *iter,
	struct ipoib_path *path);
	#endif

	int ipoib_mcast_attach(struct net_device *dev, u16 mlid,
	union ib_gid *mgid);
	int ipoib_mcast_detach(struct net_device *dev, u16 mlid,
	union ib_gid *mgid);

	int ipoib_init_qp(struct net_device *dev);
	int ipoib_transport_dev_init(struct net_device dev, struct ib_device ca);
	void ipoib_transport_dev_cleanup(struct net_device *dev);

	void ipoib_event(struct ib_event_handler *handler,
	struct ib_event *record);

	int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey);
	int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey);

	void ipoib_pkey_poll(void *dev);
	int ipoib_pkey_dev_delay_open(struct net_device *dev);

	#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
	void ipoib_create_debug_files(struct net_device *dev);
	void ipoib_delete_debug_files(struct net_device *dev);
	int ipoib_register_debugfs(void);
	void ipoib_unregister_debugfs(void);
	#else
	static inline void ipoib_create_debug_files(struct net_device *dev) { }
	static inline void ipoib_delete_debug_files(struct net_device *dev) { }
	static inline int ipoib_register_debugfs(void) { return 0; }
	static inline void ipoib_unregister_debugfs(void) { }
	#endif


	#define ipoib_printk(level, priv, format, arg...) \
	printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg)
	#define ipoib_warn(priv, format, arg...) \
	ipoib_printk(KERN_WARNING, priv, format , ## arg)


	#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
	extern int ipoib_debug_level;

	#define ipoib_dbg(priv, format, arg...) \
	do { \
	if (ipoib_debug_level > 0) \
	ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
	} while (0)
	#define ipoib_dbg_mcast(priv, format, arg...) \
	do { \
	if (mcast_debug_level > 0) \
	ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
	} while (0)
	#else /* CONFIG_INFINIBAND_IPOIB_DEBUG */
	#define ipoib_dbg(priv, format, arg...) \
	do { (void) (priv); } while (0)
	#define ipoib_dbg_mcast(priv, format, arg...) \
	do { (void) (priv); } while (0)
	#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */

	#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
	#define ipoib_dbg_data(priv, format, arg...) \
	do { \
	if (data_debug_level > 0) \
	ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
	} while (0)
	#else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
	#define ipoib_dbg_data(priv, format, arg...) \
	do { (void) (priv); } while (0)
	#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */


	#define IPOIB_GID_FMT "%x:%x:%x:%x:%x:%x:%x:%x"

	#define IPOIB_GID_ARG(gid) be16_to_cpup((__be16 *) ((gid).raw + 0)), \
	be16_to_cpup((__be16 *) ((gid).raw + 2)), \
	be16_to_cpup((__be16 *) ((gid).raw + 4)), \
	be16_to_cpup((__be16 *) ((gid).raw + 6)), \
	be16_to_cpup((__be16 *) ((gid).raw + 8)), \
	be16_to_cpup((__be16 *) ((gid).raw + 10)), \
	be16_to_cpup((__be16 *) ((gid).raw + 12)), \
	be16_to_cpup((__be16 *) ((gid).raw + 14))

	#endif /* _IPOIB_H */