[linux-2.6-block.git] / drivers / infiniband / core / uverbs.h

/*
 * Copyright (c) 2005 Topspin Communications.  All rights reserved.
 * Copyright (c) 2005, 2006 Cisco Systems.  All rights reserved.
 * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
 * Copyright (c) 2005 Voltaire, Inc. All rights reserved.
 * Copyright (c) 2005 PathScale, 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.
 */

#ifndef UVERBS_H
#define UVERBS_H

#include <linux/kref.h>
#include <linux/idr.h>
#include <linux/mutex.h>
#include <linux/completion.h>
#include <linux/cdev.h>

#include <rdma/ib_verbs.h>
#include <rdma/ib_umem.h>
#include <rdma/ib_user_verbs.h>
#include <rdma/uverbs_std_types.h>

#define UVERBS_MODULE_NAME ib_uverbs
#include <rdma/uverbs_named_ioctl.h>

static inline void
ib_uverbs_init_udata(struct ib_udata *udata,
		     const void __user *ibuf,
		     void __user *obuf,
		     size_t ilen, size_t olen)
{
	udata->inbuf  = ibuf;
	udata->outbuf = obuf;
	udata->inlen  = ilen;
	udata->outlen = olen;
}

static inline void
ib_uverbs_init_udata_buf_or_null(struct ib_udata *udata,
				 const void __user *ibuf,
				 void __user *obuf,
				 size_t ilen, size_t olen)
{
	ib_uverbs_init_udata(udata,
			     ilen ? ibuf : NULL, olen ? obuf : NULL,
			     ilen, olen);
}

/*
 * Our lifetime rules for these structs are the following:
 *
 * struct ib_uverbs_device: One reference is held by the module and
 * released in ib_uverbs_remove_one().  Another reference is taken by
 * ib_uverbs_open() each time the character special file is opened,
 * and released in ib_uverbs_release_file() when the file is released.
 *
 * struct ib_uverbs_file: One reference is held by the VFS and
 * released when the file is closed.  Another reference is taken when
 * an asynchronous event queue file is created and released when the
 * event file is closed.
 *
 * struct ib_uverbs_event_queue: Base structure for
 * struct ib_uverbs_async_event_file and struct ib_uverbs_completion_event_file.
 * One reference is held by the VFS and released when the file is closed.
 * For asynchronous event files, another reference is held by the corresponding
 * main context file and released when that file is closed.  For completion
 * event files, a reference is taken when a CQ is created that uses the file,
 * and released when the CQ is destroyed.
 */

struct ib_uverbs_device {
	refcount_t				refcount;
	u32					num_comp_vectors;
	struct completion			comp;
	struct device				dev;
	/* First group for device attributes, NULL terminated array */
	const struct attribute_group		*groups[2];
	struct ib_device	__rcu	       *ib_dev;
	int					devnum;
	struct cdev			        cdev;
	struct rb_root				xrcd_tree;
	struct mutex				xrcd_tree_mutex;
	struct srcu_struct			disassociate_srcu;
	struct mutex				lists_mutex; /* protect lists */
	struct list_head			uverbs_file_list;
	struct uverbs_api			*uapi;
};

struct ib_uverbs_event_queue {
	spinlock_t				lock;
	int					is_closed;
	wait_queue_head_t			poll_wait;
	struct fasync_struct		       *async_queue;
	struct list_head			event_list;
};

struct ib_uverbs_async_event_file {
	struct ib_uobject			uobj;
	struct ib_uverbs_event_queue		ev_queue;
	struct ib_event_handler			event_handler;
};

struct ib_uverbs_completion_event_file {
	struct ib_uobject			uobj;
	struct ib_uverbs_event_queue		ev_queue;
};

struct ib_uverbs_event {
	union {
		struct ib_uverbs_async_event_desc	async;
		struct ib_uverbs_comp_event_desc	comp;
	}					desc;
	struct list_head			list;
	struct list_head			obj_list;
	u32				       *counter;
};

struct ib_uverbs_mcast_entry {
	struct list_head	list;
	union ib_gid 		gid;
	u16 			lid;
};

struct ib_uevent_object {
	struct ib_uobject	uobject;
	struct ib_uverbs_async_event_file *event_file;
	/* List member for ib_uverbs_async_event_file list */
	struct list_head	event_list;
	u32			events_reported;
};

struct ib_uxrcd_object {
	struct ib_uobject	uobject;
	atomic_t		refcnt;
};

struct ib_usrq_object {
	struct ib_uevent_object	uevent;
	struct ib_uxrcd_object *uxrcd;
};

struct ib_uqp_object {
	struct ib_uevent_object	uevent;
	/* lock for mcast list */
	struct mutex		mcast_lock;
	struct list_head 	mcast_list;
	struct ib_uxrcd_object *uxrcd;
};

struct ib_uwq_object {
	struct ib_uevent_object	uevent;
};

struct ib_ucq_object {
	struct ib_uevent_object uevent;
	struct list_head	comp_list;
	u32			comp_events_reported;
};

extern const struct file_operations uverbs_event_fops;
extern const struct file_operations uverbs_async_event_fops;
void ib_uverbs_init_event_queue(struct ib_uverbs_event_queue *ev_queue);
void ib_uverbs_init_async_event_file(struct ib_uverbs_async_event_file *ev_file);
void ib_uverbs_free_event_queue(struct ib_uverbs_event_queue *event_queue);
void ib_uverbs_flow_resources_free(struct ib_uflow_resources *uflow_res);
int uverbs_async_event_release(struct inode *inode, struct file *filp);

int ib_alloc_ucontext(struct uverbs_attr_bundle *attrs);
int ib_init_ucontext(struct uverbs_attr_bundle *attrs);

void ib_uverbs_release_ucq(struct ib_uverbs_completion_event_file *ev_file,
			   struct ib_ucq_object *uobj);
void ib_uverbs_release_uevent(struct ib_uevent_object *uobj);
void ib_uverbs_release_file(struct kref *ref);
void ib_uverbs_async_handler(struct ib_uverbs_async_event_file *async_file,
			     __u64 element, __u64 event,
			     struct list_head *obj_list, u32 *counter);

void ib_uverbs_comp_handler(struct ib_cq *cq, void *cq_context);
void ib_uverbs_cq_event_handler(struct ib_event *event, void *context_ptr);
void ib_uverbs_qp_event_handler(struct ib_event *event, void *context_ptr);
void ib_uverbs_wq_event_handler(struct ib_event *event, void *context_ptr);
void ib_uverbs_srq_event_handler(struct ib_event *event, void *context_ptr);
int ib_uverbs_dealloc_xrcd(struct ib_uobject *uobject, struct ib_xrcd *xrcd,
			   enum rdma_remove_reason why,
			   struct uverbs_attr_bundle *attrs);

int uverbs_dealloc_mw(struct ib_mw *mw);
void ib_uverbs_detach_umcast(struct ib_qp *qp,
			     struct ib_uqp_object *uobj);

long ib_uverbs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);

struct ib_uverbs_flow_spec {
	union {
		union {
			struct ib_uverbs_flow_spec_hdr hdr;
			struct {
				__u32 type;
				__u16 size;
				__u16 reserved;
			};
		};
		struct ib_uverbs_flow_spec_eth     eth;
		struct ib_uverbs_flow_spec_ipv4    ipv4;
		struct ib_uverbs_flow_spec_esp     esp;
		struct ib_uverbs_flow_spec_tcp_udp tcp_udp;
		struct ib_uverbs_flow_spec_ipv6    ipv6;
		struct ib_uverbs_flow_spec_action_tag	flow_tag;
		struct ib_uverbs_flow_spec_action_drop	drop;
		struct ib_uverbs_flow_spec_action_handle action;
		struct ib_uverbs_flow_spec_action_count flow_count;
	};
};

int ib_uverbs_kern_spec_to_ib_spec_filter(enum ib_flow_spec_type type,
					  const void *kern_spec_mask,
					  const void *kern_spec_val,
					  size_t kern_filter_sz,
					  union ib_flow_spec *ib_spec);

/*
 * ib_uverbs_query_port_resp.port_cap_flags started out as just a copy of the
 * PortInfo CapabilityMask, but was extended with unique bits.
 */
static inline u32 make_port_cap_flags(const struct ib_port_attr *attr)
{
	u32 res;

	/* All IBA CapabilityMask bits are passed through here, except bit 26,
	 * which is overridden with IP_BASED_GIDS. This is due to a historical
	 * mistake in the implementation of IP_BASED_GIDS. Otherwise all other
	 * bits match the IBA definition across all kernel versions.
	 */
	res = attr->port_cap_flags & ~(u32)IB_UVERBS_PCF_IP_BASED_GIDS;

	if (attr->ip_gids)
		res |= IB_UVERBS_PCF_IP_BASED_GIDS;

	return res;
}

static inline struct ib_uverbs_async_event_file *
ib_uverbs_get_async_event(struct uverbs_attr_bundle *attrs,
			  u16 id)
{
	struct ib_uobject *async_ev_file_uobj;
	struct ib_uverbs_async_event_file *async_ev_file;

	async_ev_file_uobj = uverbs_attr_get_uobject(attrs, id);
	if (IS_ERR(async_ev_file_uobj))
		async_ev_file = READ_ONCE(attrs->ufile->default_async_file);
	else
		async_ev_file = container_of(async_ev_file_uobj,
				       struct ib_uverbs_async_event_file,
				       uobj);
	if (async_ev_file)
		uverbs_uobject_get(&async_ev_file->uobj);
	return async_ev_file;
}

void copy_port_attr_to_resp(struct ib_port_attr *attr,
			    struct ib_uverbs_query_port_resp *resp,
			    struct ib_device *ib_dev, u8 port_num);
#endif /* UVERBS_H */
Commit	Line	Data
bc38a6ab RD	1	/*
bc38a6ab RD	2	* Copyright (c) 2005 Topspin Communications. All rights reserved.
33b9b3ee	3	* Copyright (c) 2005, 2006 Cisco Systems. All rights reserved.
2a1d9b7f RD	4	* Copyright (c) 2005 Mellanox Technologies. All rights reserved.
2a1d9b7f RD	5	* Copyright (c) 2005 Voltaire, Inc. All rights reserved.
67cdb40c	6	* Copyright (c) 2005 PathScale, Inc. All rights reserved.
bc38a6ab RD	7	*
	8	* This software is available to you under a choice of one of two
	9	* licenses. You may choose to be licensed under the terms of the GNU
	10	* General Public License (GPL) Version 2, available from the file
	11	* COPYING in the main directory of this source tree, or the
	12	* OpenIB.org BSD license below:
	13	*
	14	* Redistribution and use in source and binary forms, with or
	15	* without modification, are permitted provided that the following
	16	* conditions are met:
	17	*
	18	* - Redistributions of source code must retain the above
	19	* copyright notice, this list of conditions and the following
	20	* disclaimer.
	21	*
	22	* - Redistributions in binary form must reproduce the above
	23	* copyright notice, this list of conditions and the following
	24	* disclaimer in the documentation and/or other materials
	25	* provided with the distribution.
	26	*
	27	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	28	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	29	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	30	* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
	31	* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
	32	* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	33	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	34	* SOFTWARE.
bc38a6ab RD	35	*/
	36
	37	#ifndef UVERBS_H
	38	#define UVERBS_H
	39
bc38a6ab RD	40	#include <linux/kref.h>
bc38a6ab RD	41	#include <linux/idr.h>
95ed644f	42	#include <linux/mutex.h>
fd60ae40	43	#include <linux/completion.h>
055422dd	44	#include <linux/cdev.h>
bc38a6ab	45
a4d61e84	46	#include <rdma/ib_verbs.h>
f7c6a7b5	47	#include <rdma/ib_umem.h>
a4d61e84	48	#include <rdma/ib_user_verbs.h>
dfb13955	49	#include <rdma/uverbs_std_types.h>
bc38a6ab	50
1f7ff9d5 MB	51	#define UVERBS_MODULE_NAME ib_uverbs
	52	#include <rdma/uverbs_named_ioctl.h>
	53
40a20339 AB	54	static inline void
	55	ib_uverbs_init_udata(struct ib_udata *udata,
	56	const void __user *ibuf,
	57	void __user *obuf,
	58	size_t ilen, size_t olen)
	59	{
	60	udata->inbuf = ibuf;
	61	udata->outbuf = obuf;
	62	udata->inlen = ilen;
	63	udata->outlen = olen;
	64	}
f21519b2	65
12f72772 AB	66	static inline void
	67	ib_uverbs_init_udata_buf_or_null(struct ib_udata *udata,
	68	const void __user *ibuf,
	69	void __user *obuf,
	70	size_t ilen, size_t olen)
	71	{
40a20339 AB	72	ib_uverbs_init_udata(udata,
	73	ilen ? ibuf : NULL, olen ? obuf : NULL,
	74	ilen, olen);
12f72772	75	}
a96e4e2f	76
70a30e16 RD	77	/*
	78	* Our lifetime rules for these structs are the following:
	79	*
	80	* struct ib_uverbs_device: One reference is held by the module and
	81	* released in ib_uverbs_remove_one(). Another reference is taken by
	82	* ib_uverbs_open() each time the character special file is opened,
	83	* and released in ib_uverbs_release_file() when the file is released.
	84	*
	85	* struct ib_uverbs_file: One reference is held by the VFS and
	86	* released when the file is closed. Another reference is taken when
	87	* an asynchronous event queue file is created and released when the
	88	* event file is closed.
	89	*
db1b5ddd MB	90	* struct ib_uverbs_event_queue: Base structure for
	91	* struct ib_uverbs_async_event_file and struct ib_uverbs_completion_event_file.
	92	* One reference is held by the VFS and released when the file is closed.
	93	* For asynchronous event files, another reference is held by the corresponding
	94	* main context file and released when that file is closed. For completion
	95	* event files, a reference is taken when a CQ is created that uses the file,
	96	* and released when the CQ is destroyed.
70a30e16 RD	97	*/
70a30e16 RD	98
bc38a6ab	99	struct ib_uverbs_device {
ec9bf373	100	refcount_t refcount;
a9018adf	101	u32 num_comp_vectors;
fd60ae40	102	struct completion comp;
c5c4d92e	103	struct device dev;
b53b1c08 PP	104	/* First group for device attributes, NULL terminated array */
b53b1c08 PP	105	const struct attribute_group *groups[2];
036b1063	106	struct ib_device __rcu *ib_dev;
055422dd AC	107	int devnum;
055422dd AC	108	struct cdev cdev;
53d0bd1e SH	109	struct rb_root xrcd_tree;
53d0bd1e SH	110	struct mutex xrcd_tree_mutex;
036b1063 YH	111	struct srcu_struct disassociate_srcu;
	112	struct mutex lists_mutex; /* protect lists */
	113	struct list_head uverbs_file_list;
9ed3e5f4	114	struct uverbs_api *uapi;
bc38a6ab RD	115	};
bc38a6ab RD	116
db1b5ddd	117	struct ib_uverbs_event_queue {
bc38a6ab	118	spinlock_t lock;
830a3871	119	int is_closed;
bc38a6ab	120	wait_queue_head_t poll_wait;
abdf119b	121	struct fasync_struct *async_queue;
bc38a6ab	122	struct list_head event_list;
1e7710f3 MB	123	};
	124
	125	struct ib_uverbs_async_event_file {
3e032c0e	126	struct ib_uobject uobj;
db1b5ddd	127	struct ib_uverbs_event_queue ev_queue;
3e032c0e	128	struct ib_event_handler event_handler;
bc38a6ab RD	129	};
bc38a6ab RD	130
1e7710f3	131	struct ib_uverbs_completion_event_file {
d0259e82	132	struct ib_uobject uobj;
db1b5ddd	133	struct ib_uverbs_event_queue ev_queue;
1e7710f3 MB	134	};
1e7710f3 MB	135
63aaf647 RD	136	struct ib_uverbs_event {
	137	union {
	138	struct ib_uverbs_async_event_desc async;
	139	struct ib_uverbs_comp_event_desc comp;
	140	} desc;
bc38a6ab	141	struct list_head list;
63aaf647 RD	142	struct list_head obj_list;
63aaf647 RD	143	u32 *counter;
bc38a6ab RD	144	};
bc38a6ab RD	145
f4e40156 JM	146	struct ib_uverbs_mcast_entry {
	147	struct list_head list;
	148	union ib_gid gid;
	149	u16 lid;
	150	};
	151
63aaf647 RD	152	struct ib_uevent_object {
63aaf647 RD	153	struct ib_uobject uobject;
98a8890f	154	struct ib_uverbs_async_event_file *event_file;
4ec1dcfc	155	/* List member for ib_uverbs_async_event_file list */
63aaf647 RD	156	struct list_head event_list;
63aaf647 RD	157	u32 events_reported;
bc38a6ab RD	158	};
bc38a6ab RD	159
53d0bd1e SH	160	struct ib_uxrcd_object {
	161	struct ib_uobject uobject;
	162	atomic_t refcnt;
	163	};
	164
8541f8de SH	165	struct ib_usrq_object {
	166	struct ib_uevent_object uevent;
	167	struct ib_uxrcd_object *uxrcd;
	168	};
	169
f4e40156 JM	170	struct ib_uqp_object {
f4e40156 JM	171	struct ib_uevent_object uevent;
f48b7269 MB	172	/* lock for mcast list */
f48b7269 MB	173	struct mutex mcast_lock;
f4e40156	174	struct list_head mcast_list;
846be90d	175	struct ib_uxrcd_object *uxrcd;
f4e40156 JM	176	};
f4e40156 JM	177
f213c052 YH	178	struct ib_uwq_object {
	179	struct ib_uevent_object uevent;
	180	};
	181
63aaf647	182	struct ib_ucq_object {
4ec1dcfc	183	struct ib_uevent_object uevent;
63aaf647	184	struct list_head comp_list;
63aaf647	185	u32 comp_events_reported;
bc38a6ab RD	186	};
bc38a6ab RD	187
1e7710f3	188	extern const struct file_operations uverbs_event_fops;
3e032c0e	189	extern const struct file_operations uverbs_async_event_fops;
db1b5ddd	190	void ib_uverbs_init_event_queue(struct ib_uverbs_event_queue *ev_queue);
3e032c0e JG	191	void ib_uverbs_init_async_event_file(struct ib_uverbs_async_event_file *ev_file);
3e032c0e JG	192	void ib_uverbs_free_event_queue(struct ib_uverbs_event_queue *event_queue);
9b828441	193	void ib_uverbs_flow_resources_free(struct ib_uflow_resources *uflow_res);
c485b19d	194	int uverbs_async_event_release(struct inode inode, struct file filp);
6b73597e	195
a1123418 JG	196	int ib_alloc_ucontext(struct uverbs_attr_bundle *attrs);
	197	int ib_init_ucontext(struct uverbs_attr_bundle *attrs);
	198
5c55cfd6	199	void ib_uverbs_release_ucq(struct ib_uverbs_completion_event_file *ev_file,
70a30e16	200	struct ib_ucq_object *uobj);
5c55cfd6	201	void ib_uverbs_release_uevent(struct ib_uevent_object *uobj);
cf8966b3	202	void ib_uverbs_release_file(struct kref *ref);
ccfdbaa5 JG	203	void ib_uverbs_async_handler(struct ib_uverbs_async_event_file *async_file,
	204	__u64 element, __u64 event,
	205	struct list_head obj_list, u32 counter);
70a30e16	206
bc38a6ab RD	207	void ib_uverbs_comp_handler(struct ib_cq cq, void cq_context);
	208	void ib_uverbs_cq_event_handler(struct ib_event event, void context_ptr);
	209	void ib_uverbs_qp_event_handler(struct ib_event event, void context_ptr);
f213c052	210	void ib_uverbs_wq_event_handler(struct ib_event event, void context_ptr);
f520ba5a	211	void ib_uverbs_srq_event_handler(struct ib_event event, void context_ptr);
1c77483e	212	int ib_uverbs_dealloc_xrcd(struct ib_uobject uobject, struct ib_xrcd xrcd,
bdeacabd SR	213	enum rdma_remove_reason why,
bdeacabd SR	214	struct uverbs_attr_bundle *attrs);
bc38a6ab	215
feb7c1e3	216	int uverbs_dealloc_mw(struct ib_mw *mw);
6be60aed MB	217	void ib_uverbs_detach_umcast(struct ib_qp *qp,
6be60aed MB	218	struct ib_uqp_object *uobj);
feb7c1e3	219
8eb19e8e MB	220	long ib_uverbs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
8eb19e8e MB	221
2490f20b YD	222	struct ib_uverbs_flow_spec {
	223	union {
	224	union {
	225	struct ib_uverbs_flow_spec_hdr hdr;
	226	struct {
	227	__u32 type;
	228	__u16 size;
	229	__u16 reserved;
	230	};
	231	};
	232	struct ib_uverbs_flow_spec_eth eth;
	233	struct ib_uverbs_flow_spec_ipv4 ipv4;
56ab0b38	234	struct ib_uverbs_flow_spec_esp esp;
2490f20b	235	struct ib_uverbs_flow_spec_tcp_udp tcp_udp;
4c2aae71	236	struct ib_uverbs_flow_spec_ipv6 ipv6;
94e03f11	237	struct ib_uverbs_flow_spec_action_tag flow_tag;
483a3966	238	struct ib_uverbs_flow_spec_action_drop drop;
9b828441	239	struct ib_uverbs_flow_spec_action_handle action;
b6ba4a9a	240	struct ib_uverbs_flow_spec_action_count flow_count;
2490f20b YD	241	};
	242	};
	243
766d8551 MB	244	int ib_uverbs_kern_spec_to_ib_spec_filter(enum ib_flow_spec_type type,
	245	const void *kern_spec_mask,
	246	const void *kern_spec_val,
	247	size_t kern_filter_sz,
	248	union ib_flow_spec *ib_spec);
	249
641d1207 MG	250	/*
	251	* ib_uverbs_query_port_resp.port_cap_flags started out as just a copy of the
	252	* PortInfo CapabilityMask, but was extended with unique bits.
	253	*/
	254	static inline u32 make_port_cap_flags(const struct ib_port_attr *attr)
	255	{
	256	u32 res;
	257
	258	/* All IBA CapabilityMask bits are passed through here, except bit 26,
	259	* which is overridden with IP_BASED_GIDS. This is due to a historical
	260	* mistake in the implementation of IP_BASED_GIDS. Otherwise all other
	261	* bits match the IBA definition across all kernel versions.
	262	*/
	263	res = attr->port_cap_flags & ~(u32)IB_UVERBS_PCF_IP_BASED_GIDS;
	264
	265	if (attr->ip_gids)
	266	res \|= IB_UVERBS_PCF_IP_BASED_GIDS;
	267
	268	return res;
	269	}
	270
cda9ee49 YH	271	static inline struct ib_uverbs_async_event_file *
	272	ib_uverbs_get_async_event(struct uverbs_attr_bundle *attrs,
	273	u16 id)
	274	{
	275	struct ib_uobject *async_ev_file_uobj;
	276	struct ib_uverbs_async_event_file *async_ev_file;
	277
	278	async_ev_file_uobj = uverbs_attr_get_uobject(attrs, id);
	279	if (IS_ERR(async_ev_file_uobj))
	280	async_ev_file = READ_ONCE(attrs->ufile->default_async_file);
	281	else
	282	async_ev_file = container_of(async_ev_file_uobj,
	283	struct ib_uverbs_async_event_file,
	284	uobj);
	285	if (async_ev_file)
	286	uverbs_uobject_get(&async_ev_file->uobj);
	287	return async_ev_file;
	288	}
641d1207 MG	289
	290	void copy_port_attr_to_resp(struct ib_port_attr *attr,
	291	struct ib_uverbs_query_port_resp *resp,
	292	struct ib_device *ib_dev, u8 port_num);
bc38a6ab	293	#endif /* UVERBS_H */