| /* | |
| * 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. | |
| * | |
| * $Id: uverbs.h 2559 2005-06-06 19:43:16Z roland $ | |
| */ | |
| #ifndef UVERBS_H | |
| #define UVERBS_H | |
| #include <linux/kref.h> | |
| #include <linux/idr.h> | |
| #include <linux/mutex.h> | |
| #include <linux/completion.h> | |
| #include <rdma/ib_verbs.h> | |
| #include <rdma/ib_user_verbs.h> | |
| /* | |
| * 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_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 { | |
| struct kref ref; | |
| struct completion comp; | |
| int devnum; | |
| struct cdev *dev; | |
| struct class_device *class_dev; | |
| struct ib_device *ib_dev; | |
| int num_comp_vectors; | |
| }; | |
| struct ib_uverbs_event_file { | |
| struct kref ref; | |
| struct file *file; | |
| struct ib_uverbs_file *uverbs_file; | |
| spinlock_t lock; | |
| int is_async; | |
| wait_queue_head_t poll_wait; | |
| struct fasync_struct *async_queue; | |
| struct list_head event_list; | |
| }; | |
| struct ib_uverbs_file { | |
| struct kref ref; | |
| struct mutex mutex; | |
| struct ib_uverbs_device *device; | |
| struct ib_ucontext *ucontext; | |
| struct ib_event_handler event_handler; | |
| struct ib_uverbs_event_file *async_file; | |
| }; | |
| 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 list_head event_list; | |
| u32 events_reported; | |
| }; | |
| struct ib_uqp_object { | |
| struct ib_uevent_object uevent; | |
| struct list_head mcast_list; | |
| }; | |
| struct ib_ucq_object { | |
| struct ib_uobject uobject; | |
| struct ib_uverbs_file *uverbs_file; | |
| struct list_head comp_list; | |
| struct list_head async_list; | |
| u32 comp_events_reported; | |
| u32 async_events_reported; | |
| }; | |
| extern spinlock_t ib_uverbs_idr_lock; | |
| extern struct idr ib_uverbs_pd_idr; | |
| extern struct idr ib_uverbs_mr_idr; | |
| extern struct idr ib_uverbs_mw_idr; | |
| extern struct idr ib_uverbs_ah_idr; | |
| extern struct idr ib_uverbs_cq_idr; | |
| extern struct idr ib_uverbs_qp_idr; | |
| extern struct idr ib_uverbs_srq_idr; | |
| void idr_remove_uobj(struct idr *idp, struct ib_uobject *uobj); | |
| struct file *ib_uverbs_alloc_event_file(struct ib_uverbs_file *uverbs_file, | |
| int is_async, int *fd); | |
| void ib_uverbs_release_event_file(struct kref *ref); | |
| struct ib_uverbs_event_file *ib_uverbs_lookup_comp_file(int fd); | |
| void ib_uverbs_release_ucq(struct ib_uverbs_file *file, | |
| struct ib_uverbs_event_file *ev_file, | |
| struct ib_ucq_object *uobj); | |
| void ib_uverbs_release_uevent(struct ib_uverbs_file *file, | |
| struct ib_uevent_object *uobj); | |
| 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_srq_event_handler(struct ib_event *event, void *context_ptr); | |
| void ib_uverbs_event_handler(struct ib_event_handler *handler, | |
| struct ib_event *event); | |
| int ib_umem_get(struct ib_device *dev, struct ib_umem *mem, | |
| void *addr, size_t size, int write); | |
| void ib_umem_release(struct ib_device *dev, struct ib_umem *umem); | |
| void ib_umem_release_on_close(struct ib_device *dev, struct ib_umem *umem); | |
| #define IB_UVERBS_DECLARE_CMD(name) \ | |
| ssize_t ib_uverbs_##name(struct ib_uverbs_file *file, \ | |
| const char __user *buf, int in_len, \ | |
| int out_len) | |
| IB_UVERBS_DECLARE_CMD(get_context); | |
| IB_UVERBS_DECLARE_CMD(query_device); | |
| IB_UVERBS_DECLARE_CMD(query_port); | |
| IB_UVERBS_DECLARE_CMD(alloc_pd); | |
| IB_UVERBS_DECLARE_CMD(dealloc_pd); | |
| IB_UVERBS_DECLARE_CMD(reg_mr); | |
| IB_UVERBS_DECLARE_CMD(dereg_mr); | |
| IB_UVERBS_DECLARE_CMD(create_comp_channel); | |
| IB_UVERBS_DECLARE_CMD(create_cq); | |
| IB_UVERBS_DECLARE_CMD(resize_cq); | |
| IB_UVERBS_DECLARE_CMD(poll_cq); | |
| IB_UVERBS_DECLARE_CMD(req_notify_cq); | |
| IB_UVERBS_DECLARE_CMD(destroy_cq); | |
| IB_UVERBS_DECLARE_CMD(create_qp); | |
| IB_UVERBS_DECLARE_CMD(query_qp); | |
| IB_UVERBS_DECLARE_CMD(modify_qp); | |
| IB_UVERBS_DECLARE_CMD(destroy_qp); | |
| IB_UVERBS_DECLARE_CMD(post_send); | |
| IB_UVERBS_DECLARE_CMD(post_recv); | |
| IB_UVERBS_DECLARE_CMD(post_srq_recv); | |
| IB_UVERBS_DECLARE_CMD(create_ah); | |
| IB_UVERBS_DECLARE_CMD(destroy_ah); | |
| IB_UVERBS_DECLARE_CMD(attach_mcast); | |
| IB_UVERBS_DECLARE_CMD(detach_mcast); | |
| IB_UVERBS_DECLARE_CMD(create_srq); | |
| IB_UVERBS_DECLARE_CMD(modify_srq); | |
| IB_UVERBS_DECLARE_CMD(query_srq); | |
| IB_UVERBS_DECLARE_CMD(destroy_srq); | |
| #endif /* UVERBS_H */ |